1 |
Author: hollow |
2 |
Date: 2009-01-01 13:50:31 +0000 (Thu, 01 Jan 2009) |
3 |
New Revision: 220 |
4 |
|
5 |
Added: |
6 |
trunk/dist/2.2/patches/21_all_itk_20080727.patch |
7 |
Removed: |
8 |
trunk/dist/2.2/patches/02_all_libtool22.patch |
9 |
trunk/dist/2.2/patches/21_all_itk_20080105.patch |
10 |
Log: |
11 |
update itk patch, remove obsolete libtool patch |
12 |
|
13 |
Deleted: trunk/dist/2.2/patches/02_all_libtool22.patch |
14 |
=================================================================== |
15 |
--- trunk/dist/2.2/patches/02_all_libtool22.patch 2009-01-01 13:50:09 UTC (rev 219) |
16 |
+++ trunk/dist/2.2/patches/02_all_libtool22.patch 2009-01-01 13:50:31 UTC (rev 220) |
17 |
@@ -1,13 +0,0 @@ |
18 |
-Index: configure.in |
19 |
-=================================================================== |
20 |
---- configure.in (revision 647627) |
21 |
-+++ configure.in (working copy) |
22 |
-@@ -237,7 +237,7 @@ |
23 |
- LIBTOOL="$my_libtool \$(LTFLAGS)" |
24 |
- libtoolversion=`$my_libtool --version` |
25 |
- case $libtoolversion in |
26 |
-- *1.[[45]]*) |
27 |
-+ *1.[[45]]* | *[[2-9]].[[0-9]]*) |
28 |
- SH_LIBTOOL='$(LIBTOOL)' |
29 |
- SHLTCFLAGS="-prefer-pic" |
30 |
- LTCFLAGS="-prefer-non-pic -static" |
31 |
|
32 |
Deleted: trunk/dist/2.2/patches/21_all_itk_20080105.patch |
33 |
=================================================================== |
34 |
--- trunk/dist/2.2/patches/21_all_itk_20080105.patch 2009-01-01 13:50:09 UTC (rev 219) |
35 |
+++ trunk/dist/2.2/patches/21_all_itk_20080105.patch 2009-01-01 13:50:31 UTC (rev 220) |
36 |
@@ -1,1907 +0,0 @@ |
37 |
-unchanged: |
38 |
---- apache2.2/server/mpm/experimental/itk/Makefile.in |
39 |
-+++ apache2.2/server/mpm/experimental/itk/Makefile.in |
40 |
-@@ -0,0 +1,5 @@ |
41 |
-+ |
42 |
-+LTLIBRARY_NAME = libitk.la |
43 |
-+LTLIBRARY_SOURCES = itk.c |
44 |
-+ |
45 |
-+include $(top_srcdir)/build/ltlib.mk |
46 |
-unchanged: |
47 |
---- apache2.2/server/mpm/experimental/itk/config.m4 |
48 |
-+++ apache2.2/server/mpm/experimental/itk/config.m4 2007-01-29 21:03:57.000000000 +0100 |
49 |
-@@ -0,0 +1,3 @@ |
50 |
-+if test "$MPM_NAME" = "itk" ; then |
51 |
-+ APACHE_FAST_OUTPUT(server/mpm/$MPM_SUBDIR_NAME/Makefile) |
52 |
-+fi |
53 |
-diff -u apache2.2/server/mpm/experimental/itk/itk.c apache2.2/server/mpm/experimental/itk/itk.c |
54 |
---- apache2.2/server/mpm/experimental/itk/itk.c |
55 |
-+++ apache2.2/server/mpm/experimental/itk/itk.c |
56 |
-@@ -0,0 +1,1704 @@ |
57 |
-+/* Licensed to the Apache Software Foundation (ASF) under one or more |
58 |
-+ * contributor license agreements. See the NOTICE file distributed with |
59 |
-+ * this work for additional information regarding copyright ownership. |
60 |
-+ * The ASF licenses this file to You under the Apache License, Version 2.0 |
61 |
-+ * (the "License"); you may not use this file except in compliance with |
62 |
-+ * the License. You may obtain a copy of the License at |
63 |
-+ * |
64 |
-+ * http://www.apache.org/licenses/LICENSE-2.0 |
65 |
-+ * |
66 |
-+ * Unless required by applicable law or agreed to in writing, software |
67 |
-+ * distributed under the License is distributed on an "AS IS" BASIS, |
68 |
-+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
69 |
-+ * See the License for the specific language governing permissions and |
70 |
-+ * limitations under the License. |
71 |
-+ * |
72 |
-+ * Portions copyright 2005-2007 Steinar H. Gunderson <sgunderson@×××××××.com>. |
73 |
-+ * Licensed under the same terms as the rest of Apache. |
74 |
-+ */ |
75 |
-+ |
76 |
-+#include "apr.h" |
77 |
-+#include "apr_portable.h" |
78 |
-+#include "apr_strings.h" |
79 |
-+#include "apr_thread_proc.h" |
80 |
-+#include "apr_signal.h" |
81 |
-+ |
82 |
-+# define _DBG(text,par...) \ |
83 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
84 |
-+ "(itkmpm: pid=%d uid=%d) %s(): " text, \ |
85 |
-+ getpid(), getuid(), __FUNCTION__, par) |
86 |
-+ |
87 |
-+#define APR_WANT_STDIO |
88 |
-+#define APR_WANT_STRFUNC |
89 |
-+#include "apr_want.h" |
90 |
-+ |
91 |
-+#if APR_HAVE_UNISTD_H |
92 |
-+#include <unistd.h> |
93 |
-+#endif |
94 |
-+#if APR_HAVE_SYS_TYPES_H |
95 |
-+#include <sys/types.h> |
96 |
-+#endif |
97 |
-+ |
98 |
-+#define CORE_PRIVATE |
99 |
-+ |
100 |
-+#include "ap_config.h" |
101 |
-+#include "httpd.h" |
102 |
-+#include "mpm_default.h" |
103 |
-+#include "http_main.h" |
104 |
-+#include "http_log.h" |
105 |
-+#include "http_config.h" |
106 |
-+#include "http_core.h" /* for get_remote_host */ |
107 |
-+#include "http_connection.h" |
108 |
-+#include "http_protocol.h" /* for ap_hook_post_read_request */ |
109 |
-+#include "scoreboard.h" |
110 |
-+#include "ap_mpm.h" |
111 |
-+#include "unixd.h" |
112 |
-+#include "mpm_common.h" |
113 |
-+#include "ap_listen.h" |
114 |
-+#include "ap_mmn.h" |
115 |
-+#include "apr_poll.h" |
116 |
-+ |
117 |
-+#ifdef HAVE_BSTRING_H |
118 |
-+#include <bstring.h> /* for IRIX, FD_SET calls bzero() */ |
119 |
-+#endif |
120 |
-+#ifdef HAVE_TIME_H |
121 |
-+#include <time.h> |
122 |
-+#endif |
123 |
-+#ifdef HAVE_SYS_PROCESSOR_H |
124 |
-+#include <sys/processor.h> /* for bindprocessor() */ |
125 |
-+#endif |
126 |
-+ |
127 |
-+#if HAVE_LIBCAP |
128 |
-+#include <sys/capability.h> |
129 |
-+#endif |
130 |
-+ |
131 |
-+#include <signal.h> |
132 |
-+#include <sys/times.h> |
133 |
-+ |
134 |
-+/* Limit on the total --- clients will be locked out if more servers than |
135 |
-+ * this are needed. It is intended solely to keep the server from crashing |
136 |
-+ * when things get out of hand. |
137 |
-+ * |
138 |
-+ * We keep a hard maximum number of servers, for two reasons --- first off, |
139 |
-+ * in case something goes seriously wrong, we want to stop the fork bomb |
140 |
-+ * short of actually crashing the machine we're running on by filling some |
141 |
-+ * kernel table. Secondly, it keeps the size of the scoreboard file small |
142 |
-+ * enough that we can read the whole thing without worrying too much about |
143 |
-+ * the overhead. |
144 |
-+ */ |
145 |
-+#ifndef DEFAULT_SERVER_LIMIT |
146 |
-+#define DEFAULT_SERVER_LIMIT 256 |
147 |
-+#endif |
148 |
-+ |
149 |
-+/* Admin can't tune ServerLimit beyond MAX_SERVER_LIMIT. We want |
150 |
-+ * some sort of compile-time limit to help catch typos. |
151 |
-+ */ |
152 |
-+#ifndef MAX_SERVER_LIMIT |
153 |
-+#define MAX_SERVER_LIMIT 200000 |
154 |
-+#endif |
155 |
-+ |
156 |
-+#ifndef HARD_THREAD_LIMIT |
157 |
-+#define HARD_THREAD_LIMIT 1 |
158 |
-+#endif |
159 |
-+ |
160 |
-+/* config globals */ |
161 |
-+ |
162 |
-+int ap_threads_per_child=0; /* Worker threads per child */ |
163 |
-+static apr_proc_mutex_t *accept_mutex; |
164 |
-+static int ap_daemons_to_start=0; |
165 |
-+static int ap_daemons_min_free=0; |
166 |
-+static int ap_daemons_max_free=0; |
167 |
-+static int ap_daemons_limit=0; /* MaxClients */ |
168 |
-+static int server_limit = DEFAULT_SERVER_LIMIT; |
169 |
-+static int first_server_limit = 0; |
170 |
-+static int changed_limit_at_restart; |
171 |
-+static int mpm_state = AP_MPMQ_STARTING; |
172 |
-+static ap_pod_t *pod; |
173 |
-+ |
174 |
-+/* |
175 |
-+ * The max child slot ever assigned, preserved across restarts. Necessary |
176 |
-+ * to deal with MaxClients changes across AP_SIG_GRACEFUL restarts. We |
177 |
-+ * use this value to optimize routines that have to scan the entire scoreboard. |
178 |
-+ */ |
179 |
-+int ap_max_daemons_limit = -1; |
180 |
-+server_rec *ap_server_conf; |
181 |
-+ |
182 |
-+/* one_process --- debugging mode variable; can be set from the command line |
183 |
-+ * with the -X flag. If set, this gets you the child_main loop running |
184 |
-+ * in the process which originally started up (no detach, no make_child), |
185 |
-+ * which is a pretty nice debugging environment. (You'll get a SIGHUP |
186 |
-+ * early in standalone_main; just continue through. This is the server |
187 |
-+ * trying to kill off any child processes which it might have lying |
188 |
-+ * around --- Apache doesn't keep track of their pids, it just sends |
189 |
-+ * SIGHUP to the process group, ignoring it in the root process. |
190 |
-+ * Continue through and you'll be fine.). |
191 |
-+ */ |
192 |
-+ |
193 |
-+static int one_process = 0; |
194 |
-+ |
195 |
-+static apr_pool_t *pconf; /* Pool for config stuff */ |
196 |
-+static apr_pool_t *pchild; /* Pool for httpd child stuff */ |
197 |
-+ |
198 |
-+static pid_t ap_my_pid; /* it seems silly to call getpid all the time */ |
199 |
-+static pid_t parent_pid; |
200 |
-+#ifndef MULTITHREAD |
201 |
-+static int my_child_num; |
202 |
-+#endif |
203 |
-+ap_generation_t volatile ap_my_generation=0; |
204 |
-+ |
205 |
-+#ifdef TPF |
206 |
-+int tpf_child = 0; |
207 |
-+char tpf_server_name[INETD_SERVNAME_LENGTH+1]; |
208 |
-+#endif /* TPF */ |
209 |
-+ |
210 |
-+static volatile int die_now = 0; |
211 |
-+static volatile int listeners_closed = 0; |
212 |
-+static int active_connection = 0; |
213 |
-+ |
214 |
-+typedef struct |
215 |
-+{ |
216 |
-+ uid_t uid; |
217 |
-+ gid_t gid; |
218 |
-+ char *username; |
219 |
-+ int max_clients_vhost; |
220 |
-+ int nice_value; |
221 |
-+} itk_server_conf; |
222 |
-+ |
223 |
-+module AP_MODULE_DECLARE_DATA mpm_itk_module; |
224 |
-+ |
225 |
-+#ifdef GPROF |
226 |
-+/* |
227 |
-+ * change directory for gprof to plop the gmon.out file |
228 |
-+ * configure in httpd.conf: |
229 |
-+ * GprofDir $RuntimeDir/ -> $ServerRoot/$RuntimeDir/gmon.out |
230 |
-+ * GprofDir $RuntimeDir/% -> $ServerRoot/$RuntimeDir/gprof.$pid/gmon.out |
231 |
-+ */ |
232 |
-+static void chdir_for_gprof(void) |
233 |
-+{ |
234 |
-+ core_server_config *sconf = |
235 |
-+ ap_get_module_config(ap_server_conf->module_config, &core_module); |
236 |
-+ char *dir = sconf->gprof_dir; |
237 |
-+ const char *use_dir; |
238 |
-+ |
239 |
-+ if(dir) { |
240 |
-+ apr_status_t res; |
241 |
-+ char *buf = NULL ; |
242 |
-+ int len = strlen(sconf->gprof_dir) - 1; |
243 |
-+ if(*(dir + len) == '%') { |
244 |
-+ dir[len] = '\0'; |
245 |
-+ buf = ap_append_pid(pconf, dir, "gprof."); |
246 |
-+ } |
247 |
-+ use_dir = ap_server_root_relative(pconf, buf ? buf : dir); |
248 |
-+ res = apr_dir_make(use_dir, |
249 |
-+ APR_UREAD | APR_UWRITE | APR_UEXECUTE | |
250 |
-+ APR_GREAD | APR_GEXECUTE | |
251 |
-+ APR_WREAD | APR_WEXECUTE, pconf); |
252 |
-+ if(res != APR_SUCCESS && !APR_STATUS_IS_EEXIST(res)) { |
253 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, res, ap_server_conf, |
254 |
-+ "gprof: error creating directory %s", dir); |
255 |
-+ } |
256 |
-+ } |
257 |
-+ else { |
258 |
-+ use_dir = ap_server_root_relative(pconf, DEFAULT_REL_RUNTIMEDIR); |
259 |
-+ } |
260 |
-+ |
261 |
-+ chdir(use_dir); |
262 |
-+} |
263 |
-+#else |
264 |
-+#define chdir_for_gprof() |
265 |
-+#endif |
266 |
-+ |
267 |
-+/* XXX - I don't know if TPF will ever use this module or not, so leave |
268 |
-+ * the ap_check_signals calls in but disable them - manoj */ |
269 |
-+#define ap_check_signals() |
270 |
-+ |
271 |
-+/* a clean exit from a child with proper cleanup */ |
272 |
-+static void clean_child_exit(int code) __attribute__ ((noreturn)); |
273 |
-+static void clean_child_exit(int code) |
274 |
-+{ |
275 |
-+ mpm_state = AP_MPMQ_STOPPING; |
276 |
-+ |
277 |
-+ if (pchild) { |
278 |
-+ apr_pool_destroy(pchild); |
279 |
-+ } |
280 |
-+ ap_mpm_pod_close(pod); |
281 |
-+ chdir_for_gprof(); |
282 |
-+ exit(code); |
283 |
-+} |
284 |
-+ |
285 |
-+static void accept_mutex_on(void) |
286 |
-+{ |
287 |
-+ apr_status_t rv = apr_proc_mutex_lock(accept_mutex); |
288 |
-+ if (rv != APR_SUCCESS) { |
289 |
-+ const char *msg = "couldn't grab the accept mutex"; |
290 |
-+ |
291 |
-+ if (ap_my_generation != |
292 |
-+ ap_scoreboard_image->global->running_generation) { |
293 |
-+ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, NULL, "%s", msg); |
294 |
-+ clean_child_exit(0); |
295 |
-+ } |
296 |
-+ else { |
297 |
-+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "%s", msg); |
298 |
-+ exit(APEXIT_CHILDFATAL); |
299 |
-+ } |
300 |
-+ } |
301 |
-+} |
302 |
-+ |
303 |
-+static void accept_mutex_off(void) |
304 |
-+{ |
305 |
-+ apr_status_t rv = apr_proc_mutex_unlock(accept_mutex); |
306 |
-+ if (rv != APR_SUCCESS) { |
307 |
-+ const char *msg = "couldn't release the accept mutex"; |
308 |
-+ |
309 |
-+ if (ap_my_generation != |
310 |
-+ ap_scoreboard_image->global->running_generation) { |
311 |
-+ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, NULL, "%s", msg); |
312 |
-+ /* don't exit here... we have a connection to |
313 |
-+ * process, after which point we'll see that the |
314 |
-+ * generation changed and we'll exit cleanly |
315 |
-+ */ |
316 |
-+ } |
317 |
-+ else { |
318 |
-+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "%s", msg); |
319 |
-+ exit(APEXIT_CHILDFATAL); |
320 |
-+ } |
321 |
-+ } |
322 |
-+} |
323 |
-+ |
324 |
-+/* On some architectures it's safe to do unserialized accept()s in the single |
325 |
-+ * Listen case. But it's never safe to do it in the case where there's |
326 |
-+ * multiple Listen statements. Define SINGLE_LISTEN_UNSERIALIZED_ACCEPT |
327 |
-+ * when it's safe in the single Listen case. |
328 |
-+ */ |
329 |
-+#ifdef SINGLE_LISTEN_UNSERIALIZED_ACCEPT |
330 |
-+#define SAFE_ACCEPT(stmt) do {if (ap_listeners->next) {stmt;}} while(0) |
331 |
-+#else |
332 |
-+#define SAFE_ACCEPT(stmt) do {stmt;} while(0) |
333 |
-+#endif |
334 |
-+ |
335 |
-+AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result) |
336 |
-+{ |
337 |
-+ switch(query_code){ |
338 |
-+ case AP_MPMQ_MAX_DAEMON_USED: |
339 |
-+ *result = ap_daemons_limit; |
340 |
-+ return APR_SUCCESS; |
341 |
-+ case AP_MPMQ_IS_THREADED: |
342 |
-+ *result = AP_MPMQ_NOT_SUPPORTED; |
343 |
-+ return APR_SUCCESS; |
344 |
-+ case AP_MPMQ_IS_FORKED: |
345 |
-+ *result = AP_MPMQ_DYNAMIC; |
346 |
-+ return APR_SUCCESS; |
347 |
-+ case AP_MPMQ_HARD_LIMIT_DAEMONS: |
348 |
-+ *result = server_limit; |
349 |
-+ return APR_SUCCESS; |
350 |
-+ case AP_MPMQ_HARD_LIMIT_THREADS: |
351 |
-+ *result = HARD_THREAD_LIMIT; |
352 |
-+ return APR_SUCCESS; |
353 |
-+ case AP_MPMQ_MAX_THREADS: |
354 |
-+ *result = 0; |
355 |
-+ return APR_SUCCESS; |
356 |
-+ case AP_MPMQ_MIN_SPARE_DAEMONS: |
357 |
-+ *result = ap_daemons_min_free; |
358 |
-+ return APR_SUCCESS; |
359 |
-+ case AP_MPMQ_MIN_SPARE_THREADS: |
360 |
-+ *result = 0; |
361 |
-+ return APR_SUCCESS; |
362 |
-+ case AP_MPMQ_MAX_SPARE_DAEMONS: |
363 |
-+ *result = ap_daemons_max_free; |
364 |
-+ return APR_SUCCESS; |
365 |
-+ case AP_MPMQ_MAX_SPARE_THREADS: |
366 |
-+ *result = 0; |
367 |
-+ return APR_SUCCESS; |
368 |
-+ case AP_MPMQ_MAX_REQUESTS_DAEMON: |
369 |
-+ *result = ap_max_requests_per_child; |
370 |
-+ return APR_SUCCESS; |
371 |
-+ case AP_MPMQ_MAX_DAEMONS: |
372 |
-+ *result = server_limit; |
373 |
-+ return APR_SUCCESS; |
374 |
-+ case AP_MPMQ_MPM_STATE: |
375 |
-+ *result = mpm_state; |
376 |
-+ return APR_SUCCESS; |
377 |
-+ } |
378 |
-+ return APR_ENOTIMPL; |
379 |
-+} |
380 |
-+ |
381 |
-+#if defined(NEED_WAITPID) |
382 |
-+/* |
383 |
-+ Systems without a real waitpid sometimes lose a child's exit while waiting |
384 |
-+ for another. Search through the scoreboard for missing children. |
385 |
-+ */ |
386 |
-+int reap_children(int *exitcode, apr_exit_why_e *status) |
387 |
-+{ |
388 |
-+ int n, pid; |
389 |
-+ |
390 |
-+ for (n = 0; n < ap_max_daemons_limit; ++n) { |
391 |
-+ if (ap_scoreboard_image->servers[n][0].status != SERVER_DEAD && |
392 |
-+ kill((pid = ap_scoreboard_image->parent[n].pid), 0) == -1) { |
393 |
-+ ap_update_child_status_from_indexes(n, 0, SERVER_DEAD, NULL); |
394 |
-+ /* just mark it as having a successful exit status */ |
395 |
-+ *status = APR_PROC_EXIT; |
396 |
-+ *exitcode = 0; |
397 |
-+ return(pid); |
398 |
-+ } |
399 |
-+ } |
400 |
-+ return 0; |
401 |
-+} |
402 |
-+#endif |
403 |
-+ |
404 |
-+/***************************************************************** |
405 |
-+ * Connection structures and accounting... |
406 |
-+ */ |
407 |
-+ |
408 |
-+static void just_die(int sig) |
409 |
-+{ |
410 |
-+ clean_child_exit(0); |
411 |
-+} |
412 |
-+ |
413 |
-+static void stop_listening(int sig) |
414 |
-+{ |
415 |
-+ if (active_connection) { |
416 |
-+ ap_close_listeners(); |
417 |
-+ listeners_closed = 1; |
418 |
-+ } |
419 |
-+ |
420 |
-+ /* For a graceful stop, we want the child to exit when done */ |
421 |
-+ die_now = 1; |
422 |
-+} |
423 |
-+ |
424 |
-+/* volatile just in case */ |
425 |
-+static int volatile shutdown_pending; |
426 |
-+static int volatile restart_pending; |
427 |
-+static int volatile is_graceful; |
428 |
-+ |
429 |
-+static void sig_term(int sig) |
430 |
-+{ |
431 |
-+ if (shutdown_pending == 1) { |
432 |
-+ /* Um, is this _probably_ not an error, if the user has |
433 |
-+ * tried to do a shutdown twice quickly, so we won't |
434 |
-+ * worry about reporting it. |
435 |
-+ */ |
436 |
-+ return; |
437 |
-+ } |
438 |
-+ shutdown_pending = 1; |
439 |
-+ is_graceful = (sig == AP_SIG_GRACEFUL_STOP); |
440 |
-+} |
441 |
-+ |
442 |
-+/* restart() is the signal handler for SIGHUP and AP_SIG_GRACEFUL |
443 |
-+ * in the parent process, unless running in ONE_PROCESS mode |
444 |
-+ */ |
445 |
-+static void restart(int sig) |
446 |
-+{ |
447 |
-+ if (restart_pending == 1) { |
448 |
-+ /* Probably not an error - don't bother reporting it */ |
449 |
-+ return; |
450 |
-+ } |
451 |
-+ restart_pending = 1; |
452 |
-+ is_graceful = (sig == AP_SIG_GRACEFUL); |
453 |
-+} |
454 |
-+ |
455 |
-+static void set_signals(void) |
456 |
-+{ |
457 |
-+#ifndef NO_USE_SIGACTION |
458 |
-+ struct sigaction sa; |
459 |
-+#endif |
460 |
-+ |
461 |
-+ if (!one_process) { |
462 |
-+ ap_fatal_signal_setup(ap_server_conf, pconf); |
463 |
-+ } |
464 |
-+ |
465 |
-+#ifndef NO_USE_SIGACTION |
466 |
-+ sigemptyset(&sa.sa_mask); |
467 |
-+ sa.sa_flags = 0; |
468 |
-+ |
469 |
-+ sa.sa_handler = sig_term; |
470 |
-+ if (sigaction(SIGTERM, &sa, NULL) < 0) |
471 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)"); |
472 |
-+#ifdef AP_SIG_GRACEFUL_STOP |
473 |
-+ if (sigaction(AP_SIG_GRACEFUL_STOP, &sa, NULL) < 0) |
474 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, |
475 |
-+ "sigaction(" AP_SIG_GRACEFUL_STOP_STRING ")"); |
476 |
-+#endif |
477 |
-+#ifdef SIGINT |
478 |
-+ if (sigaction(SIGINT, &sa, NULL) < 0) |
479 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)"); |
480 |
-+#endif |
481 |
-+#ifdef SIGXCPU |
482 |
-+ sa.sa_handler = SIG_DFL; |
483 |
-+ if (sigaction(SIGXCPU, &sa, NULL) < 0) |
484 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXCPU)"); |
485 |
-+#endif |
486 |
-+#ifdef SIGXFSZ |
487 |
-+ sa.sa_handler = SIG_DFL; |
488 |
-+ if (sigaction(SIGXFSZ, &sa, NULL) < 0) |
489 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXFSZ)"); |
490 |
-+#endif |
491 |
-+#ifdef SIGPIPE |
492 |
-+ sa.sa_handler = SIG_IGN; |
493 |
-+ if (sigaction(SIGPIPE, &sa, NULL) < 0) |
494 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)"); |
495 |
-+#endif |
496 |
-+ |
497 |
-+ /* we want to ignore HUPs and AP_SIG_GRACEFUL while we're busy |
498 |
-+ * processing one |
499 |
-+ */ |
500 |
-+ sigaddset(&sa.sa_mask, SIGHUP); |
501 |
-+ sigaddset(&sa.sa_mask, AP_SIG_GRACEFUL); |
502 |
-+ sa.sa_handler = restart; |
503 |
-+ if (sigaction(SIGHUP, &sa, NULL) < 0) |
504 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)"); |
505 |
-+ if (sigaction(AP_SIG_GRACEFUL, &sa, NULL) < 0) |
506 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(" AP_SIG_GRACEFUL_STRING ")"); |
507 |
-+#else |
508 |
-+ if (!one_process) { |
509 |
-+#ifdef SIGXCPU |
510 |
-+ apr_signal(SIGXCPU, SIG_DFL); |
511 |
-+#endif /* SIGXCPU */ |
512 |
-+#ifdef SIGXFSZ |
513 |
-+ apr_signal(SIGXFSZ, SIG_DFL); |
514 |
-+#endif /* SIGXFSZ */ |
515 |
-+ } |
516 |
-+ |
517 |
-+ apr_signal(SIGTERM, sig_term); |
518 |
-+#ifdef SIGHUP |
519 |
-+ apr_signal(SIGHUP, restart); |
520 |
-+#endif /* SIGHUP */ |
521 |
-+#ifdef AP_SIG_GRACEFUL |
522 |
-+ apr_signal(AP_SIG_GRACEFUL, restart); |
523 |
-+#endif /* AP_SIG_GRACEFUL */ |
524 |
-+#ifdef AP_SIG_GRACEFUL_STOP |
525 |
-+ apr_signal(AP_SIG_GRACEFUL_STOP, sig_term); |
526 |
-+#endif /* AP_SIG_GRACEFUL */ |
527 |
-+#ifdef SIGPIPE |
528 |
-+ apr_signal(SIGPIPE, SIG_IGN); |
529 |
-+#endif /* SIGPIPE */ |
530 |
-+ |
531 |
-+#endif |
532 |
-+} |
533 |
-+ |
534 |
-+/***************************************************************** |
535 |
-+ * Child process main loop. |
536 |
-+ * The following vars are static to avoid getting clobbered by longjmp(); |
537 |
-+ * they are really private to child_main. |
538 |
-+ */ |
539 |
-+ |
540 |
-+static int requests_this_child; |
541 |
-+static int num_listensocks = 0; |
542 |
-+ |
543 |
-+ |
544 |
-+int ap_graceful_stop_signalled(void) |
545 |
-+{ |
546 |
-+ /* not ever called anymore... */ |
547 |
-+ return 0; |
548 |
-+} |
549 |
-+ |
550 |
-+ |
551 |
-+static void child_main(int child_num_arg) |
552 |
-+{ |
553 |
-+ apr_pool_t *ptrans; |
554 |
-+ apr_allocator_t *allocator; |
555 |
-+ apr_status_t status; |
556 |
-+ int i; |
557 |
-+ ap_listen_rec *lr; |
558 |
-+ apr_pollset_t *pollset; |
559 |
-+ ap_sb_handle_t *sbh; |
560 |
-+ apr_bucket_alloc_t *bucket_alloc; |
561 |
-+ int last_poll_idx = 0; |
562 |
-+ |
563 |
-+#if HAVE_LIBCAP |
564 |
-+ cap_t caps; |
565 |
-+ cap_value_t suidcaps[] = { |
566 |
-+ CAP_SETUID, |
567 |
-+ CAP_SETGID, |
568 |
-+ CAP_SYS_NICE |
569 |
-+ }; |
570 |
-+#endif |
571 |
-+ |
572 |
-+ mpm_state = AP_MPMQ_STARTING; /* for benefit of any hooks that run as this |
573 |
-+ * child initializes |
574 |
-+ */ |
575 |
-+ |
576 |
-+ my_child_num = child_num_arg; |
577 |
-+ ap_my_pid = getpid(); |
578 |
-+ requests_this_child = 0; |
579 |
-+ |
580 |
-+ ap_fatal_signal_child_setup(ap_server_conf); |
581 |
-+ |
582 |
-+ /* Get a sub context for global allocations in this child, so that |
583 |
-+ * we can have cleanups occur when the child exits. |
584 |
-+ */ |
585 |
-+ apr_allocator_create(&allocator); |
586 |
-+ apr_allocator_max_free_set(allocator, ap_max_mem_free); |
587 |
-+ apr_pool_create_ex(&pchild, pconf, NULL, allocator); |
588 |
-+ apr_allocator_owner_set(allocator, pchild); |
589 |
-+ |
590 |
-+ apr_pool_create(&ptrans, pchild); |
591 |
-+ apr_pool_tag(ptrans, "transaction"); |
592 |
-+ |
593 |
-+ /* needs to be done before we switch UIDs so we have permissions */ |
594 |
-+ ap_reopen_scoreboard(pchild, NULL, 0); |
595 |
-+ status = apr_proc_mutex_child_init(&accept_mutex, ap_lock_fname, pchild); |
596 |
-+ if (status != APR_SUCCESS) { |
597 |
-+ ap_log_error(APLOG_MARK, APLOG_EMERG, status, ap_server_conf, |
598 |
-+ "Couldn't initialize cross-process lock in child " |
599 |
-+ "(%s) (%d)", ap_lock_fname, ap_accept_lock_mech); |
600 |
-+ clean_child_exit(APEXIT_CHILDFATAL); |
601 |
-+ } |
602 |
-+ |
603 |
-+ ap_run_child_init(pchild, ap_server_conf); |
604 |
-+ |
605 |
-+ ap_create_sb_handle(&sbh, pchild, my_child_num, 0); |
606 |
-+ |
607 |
-+ (void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL); |
608 |
-+ |
609 |
-+ /* Set up the pollfd array */ |
610 |
-+ /* ### check the status */ |
611 |
-+ (void) apr_pollset_create(&pollset, num_listensocks, pchild, 0); |
612 |
-+ |
613 |
-+ for (lr = ap_listeners, i = num_listensocks; i--; lr = lr->next) { |
614 |
-+ apr_pollfd_t pfd = { 0 }; |
615 |
-+ |
616 |
-+ pfd.desc_type = APR_POLL_SOCKET; |
617 |
-+ pfd.desc.s = lr->sd; |
618 |
-+ pfd.reqevents = APR_POLLIN; |
619 |
-+ pfd.client_data = lr; |
620 |
-+ |
621 |
-+ /* ### check the status */ |
622 |
-+ (void) apr_pollset_add(pollset, &pfd); |
623 |
-+ } |
624 |
-+ |
625 |
-+#if HAVE_LIBCAP |
626 |
-+ /* Drop as many privileges as we can. We'll still |
627 |
-+ * access files with uid=0, and we can setuid() to anything, but |
628 |
-+ * at least there's tons of other evilness (like loading kernel |
629 |
-+ * modules) we can't do directly. (The setuid() capability will |
630 |
-+ * go away automatically when we setuid() or exec() -- the former |
631 |
-+ * is likely to come first.) |
632 |
-+ */ |
633 |
-+ caps = cap_init(); |
634 |
-+ cap_clear(caps); |
635 |
-+ cap_set_flag(caps, CAP_PERMITTED, sizeof(suidcaps)/sizeof(cap_value_t), suidcaps, CAP_SET); |
636 |
-+ cap_set_flag(caps, CAP_EFFECTIVE, sizeof(suidcaps)/sizeof(cap_value_t), suidcaps, CAP_SET); |
637 |
-+ cap_set_proc(caps); |
638 |
-+ cap_free(caps); |
639 |
-+#endif |
640 |
-+ |
641 |
-+ mpm_state = AP_MPMQ_RUNNING; |
642 |
-+ |
643 |
-+ bucket_alloc = apr_bucket_alloc_create(pchild); |
644 |
-+ |
645 |
-+ while (!die_now) { |
646 |
-+ conn_rec *current_conn; |
647 |
-+ void *csd; |
648 |
-+ |
649 |
-+ /* |
650 |
-+ * (Re)initialize this child to a pre-connection state. |
651 |
-+ */ |
652 |
-+ |
653 |
-+ apr_pool_clear(ptrans); |
654 |
-+ |
655 |
-+ if ((ap_max_requests_per_child > 0 |
656 |
-+ && requests_this_child++ >= ap_max_requests_per_child)) { |
657 |
-+ clean_child_exit(0); |
658 |
-+ } |
659 |
-+ |
660 |
-+ (void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL); |
661 |
-+ |
662 |
-+ /* |
663 |
-+ * Wait for an acceptable connection to arrive. |
664 |
-+ */ |
665 |
-+ |
666 |
-+ /* Lock around "accept", if necessary */ |
667 |
-+ SAFE_ACCEPT(accept_mutex_on()); |
668 |
-+ |
669 |
-+ if (num_listensocks == 1) { |
670 |
-+ /* There is only one listener record, so refer to that one. */ |
671 |
-+ lr = ap_listeners; |
672 |
-+ } |
673 |
-+ else { |
674 |
-+ /* multiple listening sockets - need to poll */ |
675 |
-+ for (;;) { |
676 |
-+ apr_int32_t numdesc; |
677 |
-+ const apr_pollfd_t *pdesc; |
678 |
-+ |
679 |
-+ if (die_now) { |
680 |
-+ status = !APR_SUCCESS; |
681 |
-+ goto unlock; |
682 |
-+ } |
683 |
-+ |
684 |
-+ /* timeout == -1 == wait forever */ |
685 |
-+ status = apr_pollset_poll(pollset, -1, &numdesc, &pdesc); |
686 |
-+ if (status != APR_SUCCESS) { |
687 |
-+ if (APR_STATUS_IS_EINTR(status)) { |
688 |
-+ if (one_process && shutdown_pending) { |
689 |
-+ return; |
690 |
-+ } |
691 |
-+ continue; |
692 |
-+ } |
693 |
-+ /* Single Unix documents select as returning errnos |
694 |
-+ * EBADF, EINTR, and EINVAL... and in none of those |
695 |
-+ * cases does it make sense to continue. In fact |
696 |
-+ * on Linux 2.0.x we seem to end up with EFAULT |
697 |
-+ * occasionally, and we'd loop forever due to it. |
698 |
-+ */ |
699 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, status, |
700 |
-+ ap_server_conf, "apr_pollset_poll: (listen)"); |
701 |
-+ clean_child_exit(1); |
702 |
-+ } |
703 |
-+ |
704 |
-+ /* We can always use pdesc[0], but sockets at position N |
705 |
-+ * could end up completely starved of attention in a very |
706 |
-+ * busy server. Therefore, we round-robin across the |
707 |
-+ * returned set of descriptors. While it is possible that |
708 |
-+ * the returned set of descriptors might flip around and |
709 |
-+ * continue to starve some sockets, we happen to know the |
710 |
-+ * internal pollset implementation retains ordering |
711 |
-+ * stability of the sockets. Thus, the round-robin should |
712 |
-+ * ensure that a socket will eventually be serviced. |
713 |
-+ */ |
714 |
-+ if (last_poll_idx >= numdesc) |
715 |
-+ last_poll_idx = 0; |
716 |
-+ |
717 |
-+ /* Grab a listener record from the client_data of the poll |
718 |
-+ * descriptor, and advance our saved index to round-robin |
719 |
-+ * the next fetch. |
720 |
-+ * |
721 |
-+ * ### hmm... this descriptor might have POLLERR rather |
722 |
-+ * ### than POLLIN |
723 |
-+ */ |
724 |
-+ lr = pdesc[last_poll_idx++].client_data; |
725 |
-+ goto got_fd; |
726 |
-+ } |
727 |
-+ } |
728 |
-+ got_fd: |
729 |
-+ /* if we accept() something we don't want to die, so we have to |
730 |
-+ * defer the exit |
731 |
-+ */ |
732 |
-+ if (!die_now) { |
733 |
-+ status = lr->accept_func(&csd, lr, ptrans); |
734 |
-+ } |
735 |
-+ else { |
736 |
-+ status = !APR_SUCCESS; |
737 |
-+ } |
738 |
-+ |
739 |
-+ unlock: |
740 |
-+ SAFE_ACCEPT(accept_mutex_off()); /* unlock after "accept" */ |
741 |
-+ |
742 |
-+ if (status == APR_EGENERAL) { |
743 |
-+ /* resource shortage or should-not-occur occured */ |
744 |
-+ clean_child_exit(1); |
745 |
-+ } |
746 |
-+ else if (status != APR_SUCCESS) { |
747 |
-+ continue; |
748 |
-+ } |
749 |
-+ |
750 |
-+ /* |
751 |
-+ * We now have a connection, so set it up with the appropriate |
752 |
-+ * socket options, file descriptors, and read/write buffers. |
753 |
-+ */ |
754 |
-+ |
755 |
-+ active_connection = 1; |
756 |
-+ if (die_now && !listeners_closed) { |
757 |
-+ ap_close_listeners(); |
758 |
-+ listeners_closed = 1; |
759 |
-+ } |
760 |
-+ |
761 |
-+ { |
762 |
-+ pid_t pid = fork(); |
763 |
-+ int status; |
764 |
-+ switch (pid) { |
765 |
-+ case -1: |
766 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, "fork: Unable to fork new process"); |
767 |
-+ break; |
768 |
-+ case 0: /* child */ |
769 |
-+ apr_proc_mutex_child_init(&accept_mutex, ap_lock_fname, pchild); |
770 |
-+ current_conn = ap_run_create_connection(ptrans, ap_server_conf, csd, my_child_num, sbh, bucket_alloc); |
771 |
-+ if (current_conn) { |
772 |
-+ ap_process_connection(current_conn, csd); |
773 |
-+ ap_lingering_close(current_conn); |
774 |
-+ } |
775 |
-+ exit(0); |
776 |
-+ default: /* parent; just wait for child to be done */ |
777 |
-+ if (waitpid(pid, &status, 0) != pid || !WIFEXITED(status)) { |
778 |
-+ if (WIFSIGNALED(status)) { |
779 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, "child died with signal %u", WTERMSIG(status)); |
780 |
-+ } else if (WEXITSTATUS(status) != 0) { |
781 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, "child exited with non-zero exit status %u", WEXITSTATUS(status)); |
782 |
-+ } else { |
783 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, "waitpid() failed"); |
784 |
-+ } |
785 |
-+ clean_child_exit(1); |
786 |
-+ } |
787 |
-+ break; |
788 |
-+ } |
789 |
-+ } |
790 |
-+ active_connection = 0; |
791 |
-+ |
792 |
-+ /* Check the pod and the generation number after processing a |
793 |
-+ * connection so that we'll go away if a graceful restart occurred |
794 |
-+ * while we were processing the connection or we are the lucky |
795 |
-+ * idle server process that gets to die. |
796 |
-+ */ |
797 |
-+ if (ap_mpm_pod_check(pod) == APR_SUCCESS) { /* selected as idle? */ |
798 |
-+ die_now = 1; |
799 |
-+ } |
800 |
-+ else if (ap_my_generation != |
801 |
-+ ap_scoreboard_image->global->running_generation) { /* restart? */ |
802 |
-+ /* yeah, this could be non-graceful restart, in which case the |
803 |
-+ * parent will kill us soon enough, but why bother checking? |
804 |
-+ */ |
805 |
-+ die_now = 1; |
806 |
-+ } |
807 |
-+ |
808 |
-+ /* if we have already setuid(), die (we can't be used anyhow) */ |
809 |
-+ if (getuid()) |
810 |
-+ die_now = 1; |
811 |
-+ } |
812 |
-+ clean_child_exit(0); |
813 |
-+} |
814 |
-+ |
815 |
-+ |
816 |
-+static int make_child(server_rec *s, int slot) |
817 |
-+{ |
818 |
-+ int pid; |
819 |
-+ |
820 |
-+ if (slot + 1 > ap_max_daemons_limit) { |
821 |
-+ ap_max_daemons_limit = slot + 1; |
822 |
-+ } |
823 |
-+ |
824 |
-+ if (one_process) { |
825 |
-+ apr_signal(SIGHUP, sig_term); |
826 |
-+ /* Don't catch AP_SIG_GRACEFUL in ONE_PROCESS mode :) */ |
827 |
-+ apr_signal(SIGINT, sig_term); |
828 |
-+#ifdef SIGQUIT |
829 |
-+ apr_signal(SIGQUIT, SIG_DFL); |
830 |
-+#endif |
831 |
-+ apr_signal(SIGTERM, sig_term); |
832 |
-+ child_main(slot); |
833 |
-+ return 0; |
834 |
-+ } |
835 |
-+ |
836 |
-+ (void) ap_update_child_status_from_indexes(slot, 0, SERVER_STARTING, |
837 |
-+ (request_rec *) NULL); |
838 |
-+ |
839 |
-+ |
840 |
-+#ifdef _OSD_POSIX |
841 |
-+ /* BS2000 requires a "special" version of fork() before a setuid() call */ |
842 |
-+ if ((pid = os_fork(unixd_config.user_name)) == -1) { |
843 |
-+#elif defined(TPF) |
844 |
-+ if ((pid = os_fork(s, slot)) == -1) { |
845 |
-+#else |
846 |
-+ if ((pid = fork()) == -1) { |
847 |
-+#endif |
848 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, errno, s, "fork: Unable to fork new process"); |
849 |
-+ |
850 |
-+ /* fork didn't succeed. Fix the scoreboard or else |
851 |
-+ * it will say SERVER_STARTING forever and ever |
852 |
-+ */ |
853 |
-+ (void) ap_update_child_status_from_indexes(slot, 0, SERVER_DEAD, |
854 |
-+ (request_rec *) NULL); |
855 |
-+ |
856 |
-+ /* In case system resources are maxxed out, we don't want |
857 |
-+ * Apache running away with the CPU trying to fork over and |
858 |
-+ * over and over again. |
859 |
-+ */ |
860 |
-+ sleep(10); |
861 |
-+ |
862 |
-+ return -1; |
863 |
-+ } |
864 |
-+ |
865 |
-+ if (!pid) { |
866 |
-+#ifdef HAVE_BINDPROCESSOR |
867 |
-+ /* by default AIX binds to a single processor |
868 |
-+ * this bit unbinds children which will then bind to another cpu |
869 |
-+ */ |
870 |
-+ int status = bindprocessor(BINDPROCESS, (int)getpid(), |
871 |
-+ PROCESSOR_CLASS_ANY); |
872 |
-+ if (status != OK) { |
873 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, |
874 |
-+ ap_server_conf, "processor unbind failed %d", status); |
875 |
-+ } |
876 |
-+#endif |
877 |
-+ RAISE_SIGSTOP(MAKE_CHILD); |
878 |
-+ AP_MONCONTROL(1); |
879 |
-+ /* Disable the parent's signal handlers and set up proper handling in |
880 |
-+ * the child. |
881 |
-+ */ |
882 |
-+ apr_signal(SIGHUP, just_die); |
883 |
-+ apr_signal(SIGTERM, just_die); |
884 |
-+ /* The child process just closes listeners on AP_SIG_GRACEFUL. |
885 |
-+ * The pod is used for signalling the graceful restart. |
886 |
-+ */ |
887 |
-+ apr_signal(AP_SIG_GRACEFUL, stop_listening); |
888 |
-+ child_main(slot); |
889 |
-+ } |
890 |
-+ |
891 |
-+ ap_scoreboard_image->parent[slot].pid = pid; |
892 |
-+ |
893 |
-+ return 0; |
894 |
-+} |
895 |
-+ |
896 |
-+ |
897 |
-+/* start up a bunch of children */ |
898 |
-+static void startup_children(int number_to_start) |
899 |
-+{ |
900 |
-+ int i; |
901 |
-+ |
902 |
-+ for (i = 0; number_to_start && i < ap_daemons_limit; ++i) { |
903 |
-+ if (ap_scoreboard_image->servers[i][0].status != SERVER_DEAD) { |
904 |
-+ continue; |
905 |
-+ } |
906 |
-+ if (make_child(ap_server_conf, i) < 0) { |
907 |
-+ break; |
908 |
-+ } |
909 |
-+ --number_to_start; |
910 |
-+ } |
911 |
-+} |
912 |
-+ |
913 |
-+ |
914 |
-+/* |
915 |
-+ * idle_spawn_rate is the number of children that will be spawned on the |
916 |
-+ * next maintenance cycle if there aren't enough idle servers. It is |
917 |
-+ * doubled up to MAX_SPAWN_RATE, and reset only when a cycle goes by |
918 |
-+ * without the need to spawn. |
919 |
-+ */ |
920 |
-+static int idle_spawn_rate = 1; |
921 |
-+#ifndef MAX_SPAWN_RATE |
922 |
-+#define MAX_SPAWN_RATE (32) |
923 |
-+#endif |
924 |
-+static int hold_off_on_exponential_spawning; |
925 |
-+ |
926 |
-+static void perform_idle_server_maintenance(apr_pool_t *p) |
927 |
-+{ |
928 |
-+ int i; |
929 |
-+ int to_kill; |
930 |
-+ int idle_count; |
931 |
-+ worker_score *ws; |
932 |
-+ int free_length; |
933 |
-+ int free_slots[MAX_SPAWN_RATE]; |
934 |
-+ int last_non_dead; |
935 |
-+ int total_non_dead; |
936 |
-+ |
937 |
-+ /* initialize the free_list */ |
938 |
-+ free_length = 0; |
939 |
-+ |
940 |
-+ to_kill = -1; |
941 |
-+ idle_count = 0; |
942 |
-+ last_non_dead = -1; |
943 |
-+ total_non_dead = 0; |
944 |
-+ |
945 |
-+ for (i = 0; i < ap_daemons_limit; ++i) { |
946 |
-+ int status; |
947 |
-+ |
948 |
-+ if (i >= ap_max_daemons_limit && free_length == idle_spawn_rate) |
949 |
-+ break; |
950 |
-+ ws = &ap_scoreboard_image->servers[i][0]; |
951 |
-+ status = ws->status; |
952 |
-+ if (status == SERVER_DEAD) { |
953 |
-+ /* try to keep children numbers as low as possible */ |
954 |
-+ if (free_length < idle_spawn_rate) { |
955 |
-+ free_slots[free_length] = i; |
956 |
-+ ++free_length; |
957 |
-+ } |
958 |
-+ } |
959 |
-+ else { |
960 |
-+ /* We consider a starting server as idle because we started it |
961 |
-+ * at least a cycle ago, and if it still hasn't finished starting |
962 |
-+ * then we're just going to swamp things worse by forking more. |
963 |
-+ * So we hopefully won't need to fork more if we count it. |
964 |
-+ * This depends on the ordering of SERVER_READY and SERVER_STARTING. |
965 |
-+ */ |
966 |
-+ if (status <= SERVER_READY) { |
967 |
-+ ++ idle_count; |
968 |
-+ /* always kill the highest numbered child if we have to... |
969 |
-+ * no really well thought out reason ... other than observing |
970 |
-+ * the server behaviour under linux where lower numbered children |
971 |
-+ * tend to service more hits (and hence are more likely to have |
972 |
-+ * their data in cpu caches). |
973 |
-+ */ |
974 |
-+ to_kill = i; |
975 |
-+ } |
976 |
-+ |
977 |
-+ ++total_non_dead; |
978 |
-+ last_non_dead = i; |
979 |
-+ } |
980 |
-+ } |
981 |
-+ ap_max_daemons_limit = last_non_dead + 1; |
982 |
-+ if (idle_count > ap_daemons_max_free) { |
983 |
-+ /* kill off one child... we use the pod because that'll cause it to |
984 |
-+ * shut down gracefully, in case it happened to pick up a request |
985 |
-+ * while we were counting |
986 |
-+ */ |
987 |
-+ ap_mpm_pod_signal(pod); |
988 |
-+ idle_spawn_rate = 1; |
989 |
-+ } |
990 |
-+ else if (idle_count < ap_daemons_min_free) { |
991 |
-+ /* terminate the free list */ |
992 |
-+ if (free_length == 0) { |
993 |
-+ /* only report this condition once */ |
994 |
-+ static int reported = 0; |
995 |
-+ |
996 |
-+ if (!reported) { |
997 |
-+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, |
998 |
-+ "server reached MaxClients setting, consider" |
999 |
-+ " raising the MaxClients setting"); |
1000 |
-+ reported = 1; |
1001 |
-+ } |
1002 |
-+ idle_spawn_rate = 1; |
1003 |
-+ } |
1004 |
-+ else { |
1005 |
-+ if (idle_spawn_rate >= 8) { |
1006 |
-+ ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, |
1007 |
-+ "server seems busy, (you may need " |
1008 |
-+ "to increase StartServers, or Min/MaxSpareServers), " |
1009 |
-+ "spawning %d children, there are %d idle, and " |
1010 |
-+ "%d total children", idle_spawn_rate, |
1011 |
-+ idle_count, total_non_dead); |
1012 |
-+ } |
1013 |
-+ for (i = 0; i < free_length; ++i) { |
1014 |
-+#ifdef TPF |
1015 |
-+ if (make_child(ap_server_conf, free_slots[i]) == -1) { |
1016 |
-+ if(free_length == 1) { |
1017 |
-+ shutdown_pending = 1; |
1018 |
-+ ap_log_error(APLOG_MARK, APLOG_EMERG, 0, ap_server_conf, |
1019 |
-+ "No active child processes: shutting down"); |
1020 |
-+ } |
1021 |
-+ } |
1022 |
-+#else |
1023 |
-+ make_child(ap_server_conf, free_slots[i]); |
1024 |
-+#endif /* TPF */ |
1025 |
-+ } |
1026 |
-+ /* the next time around we want to spawn twice as many if this |
1027 |
-+ * wasn't good enough, but not if we've just done a graceful |
1028 |
-+ */ |
1029 |
-+ if (hold_off_on_exponential_spawning) { |
1030 |
-+ --hold_off_on_exponential_spawning; |
1031 |
-+ } |
1032 |
-+ else if (idle_spawn_rate < MAX_SPAWN_RATE) { |
1033 |
-+ idle_spawn_rate *= 2; |
1034 |
-+ } |
1035 |
-+ } |
1036 |
-+ } |
1037 |
-+ else { |
1038 |
-+ idle_spawn_rate = 1; |
1039 |
-+ } |
1040 |
-+} |
1041 |
-+ |
1042 |
-+/***************************************************************** |
1043 |
-+ * Executive routines. |
1044 |
-+ */ |
1045 |
-+ |
1046 |
-+int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s) |
1047 |
-+{ |
1048 |
-+ int index; |
1049 |
-+ int remaining_children_to_start; |
1050 |
-+ apr_status_t rv; |
1051 |
-+ |
1052 |
-+ ap_log_pid(pconf, ap_pid_fname); |
1053 |
-+ |
1054 |
-+ first_server_limit = server_limit; |
1055 |
-+ if (changed_limit_at_restart) { |
1056 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, |
1057 |
-+ "WARNING: Attempt to change ServerLimit " |
1058 |
-+ "ignored during restart"); |
1059 |
-+ changed_limit_at_restart = 0; |
1060 |
-+ } |
1061 |
-+ |
1062 |
-+ /* Initialize cross-process accept lock */ |
1063 |
-+ ap_lock_fname = apr_psprintf(_pconf, "%s.%" APR_PID_T_FMT, |
1064 |
-+ ap_server_root_relative(_pconf, ap_lock_fname), |
1065 |
-+ ap_my_pid); |
1066 |
-+ |
1067 |
-+ rv = apr_proc_mutex_create(&accept_mutex, ap_lock_fname, |
1068 |
-+ ap_accept_lock_mech, _pconf); |
1069 |
-+ if (rv != APR_SUCCESS) { |
1070 |
-+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, |
1071 |
-+ "Couldn't create accept lock (%s) (%d)", |
1072 |
-+ ap_lock_fname, ap_accept_lock_mech); |
1073 |
-+ mpm_state = AP_MPMQ_STOPPING; |
1074 |
-+ return 1; |
1075 |
-+ } |
1076 |
-+ |
1077 |
-+#if APR_USE_SYSVSEM_SERIALIZE |
1078 |
-+ if (ap_accept_lock_mech == APR_LOCK_DEFAULT || |
1079 |
-+ ap_accept_lock_mech == APR_LOCK_SYSVSEM) { |
1080 |
-+#else |
1081 |
-+ if (ap_accept_lock_mech == APR_LOCK_SYSVSEM) { |
1082 |
-+#endif |
1083 |
-+ rv = unixd_set_proc_mutex_perms(accept_mutex); |
1084 |
-+ if (rv != APR_SUCCESS) { |
1085 |
-+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, |
1086 |
-+ "Couldn't set permissions on cross-process lock; " |
1087 |
-+ "check User and Group directives"); |
1088 |
-+ mpm_state = AP_MPMQ_STOPPING; |
1089 |
-+ return 1; |
1090 |
-+ } |
1091 |
-+ } |
1092 |
-+ |
1093 |
-+ if (!is_graceful) { |
1094 |
-+ if (ap_run_pre_mpm(s->process->pool, SB_SHARED) != OK) { |
1095 |
-+ mpm_state = AP_MPMQ_STOPPING; |
1096 |
-+ return 1; |
1097 |
-+ } |
1098 |
-+ /* fix the generation number in the global score; we just got a new, |
1099 |
-+ * cleared scoreboard |
1100 |
-+ */ |
1101 |
-+ ap_scoreboard_image->global->running_generation = ap_my_generation; |
1102 |
-+ } |
1103 |
-+ |
1104 |
-+ set_signals(); |
1105 |
-+ |
1106 |
-+ if (one_process) { |
1107 |
-+ AP_MONCONTROL(1); |
1108 |
-+ make_child(ap_server_conf, 0); |
1109 |
-+ } |
1110 |
-+ else { |
1111 |
-+ if (ap_daemons_max_free < ap_daemons_min_free + 1) /* Don't thrash... */ |
1112 |
-+ ap_daemons_max_free = ap_daemons_min_free + 1; |
1113 |
-+ |
1114 |
-+ /* If we're doing a graceful_restart then we're going to see a lot |
1115 |
-+ * of children exiting immediately when we get into the main loop |
1116 |
-+ * below (because we just sent them AP_SIG_GRACEFUL). This happens pretty |
1117 |
-+ * rapidly... and for each one that exits we'll start a new one until |
1118 |
-+ * we reach at least daemons_min_free. But we may be permitted to |
1119 |
-+ * start more than that, so we'll just keep track of how many we're |
1120 |
-+ * supposed to start up without the 1 second penalty between each fork. |
1121 |
-+ */ |
1122 |
-+ remaining_children_to_start = ap_daemons_to_start; |
1123 |
-+ if (remaining_children_to_start > ap_daemons_limit) { |
1124 |
-+ remaining_children_to_start = ap_daemons_limit; |
1125 |
-+ } |
1126 |
-+ if (!is_graceful) { |
1127 |
-+ startup_children(remaining_children_to_start); |
1128 |
-+ remaining_children_to_start = 0; |
1129 |
-+ } |
1130 |
-+ else { |
1131 |
-+ /* give the system some time to recover before kicking into |
1132 |
-+ * exponential mode |
1133 |
-+ */ |
1134 |
-+ hold_off_on_exponential_spawning = 10; |
1135 |
-+ } |
1136 |
-+ |
1137 |
-+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1138 |
-+ "%s configured -- resuming normal operations", |
1139 |
-+ ap_get_server_description()); |
1140 |
-+ ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, |
1141 |
-+ "Server built: %s", ap_get_server_built()); |
1142 |
-+#ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH |
1143 |
-+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, |
1144 |
-+ "AcceptMutex: %s (default: %s)", |
1145 |
-+ apr_proc_mutex_name(accept_mutex), |
1146 |
-+ apr_proc_mutex_defname()); |
1147 |
-+#endif |
1148 |
-+ restart_pending = shutdown_pending = 0; |
1149 |
-+ |
1150 |
-+ mpm_state = AP_MPMQ_RUNNING; |
1151 |
-+ |
1152 |
-+ while (!restart_pending && !shutdown_pending) { |
1153 |
-+ int child_slot; |
1154 |
-+ apr_exit_why_e exitwhy; |
1155 |
-+ int status, processed_status; |
1156 |
-+ /* this is a memory leak, but I'll fix it later. */ |
1157 |
-+ apr_proc_t pid; |
1158 |
-+ |
1159 |
-+ ap_wait_or_timeout(&exitwhy, &status, &pid, pconf); |
1160 |
-+ |
1161 |
-+ /* XXX: if it takes longer than 1 second for all our children |
1162 |
-+ * to start up and get into IDLE state then we may spawn an |
1163 |
-+ * extra child |
1164 |
-+ */ |
1165 |
-+ if (pid.pid != -1) { |
1166 |
-+ processed_status = ap_process_child_status(&pid, exitwhy, status); |
1167 |
-+ if (processed_status == APEXIT_CHILDFATAL) { |
1168 |
-+ mpm_state = AP_MPMQ_STOPPING; |
1169 |
-+ return 1; |
1170 |
-+ } |
1171 |
-+ |
1172 |
-+ /* non-fatal death... note that it's gone in the scoreboard. */ |
1173 |
-+ child_slot = find_child_by_pid(&pid); |
1174 |
-+ if (child_slot >= 0) { |
1175 |
-+ (void) ap_update_child_status_from_indexes(child_slot, 0, SERVER_DEAD, |
1176 |
-+ (request_rec *) NULL); |
1177 |
-+ if (processed_status == APEXIT_CHILDSICK) { |
1178 |
-+ /* child detected a resource shortage (E[NM]FILE, ENOBUFS, etc) |
1179 |
-+ * cut the fork rate to the minimum |
1180 |
-+ */ |
1181 |
-+ idle_spawn_rate = 1; |
1182 |
-+ } |
1183 |
-+ else if (remaining_children_to_start |
1184 |
-+ && child_slot < ap_daemons_limit) { |
1185 |
-+ /* we're still doing a 1-for-1 replacement of dead |
1186 |
-+ * children with new children |
1187 |
-+ */ |
1188 |
-+ make_child(ap_server_conf, child_slot); |
1189 |
-+ --remaining_children_to_start; |
1190 |
-+ } |
1191 |
-+#if APR_HAS_OTHER_CHILD |
1192 |
-+ } |
1193 |
-+ else if (apr_proc_other_child_alert(&pid, APR_OC_REASON_DEATH, status) == APR_SUCCESS) { |
1194 |
-+ /* handled */ |
1195 |
-+#endif |
1196 |
-+ } |
1197 |
-+ else if (is_graceful) { |
1198 |
-+ /* Great, we've probably just lost a slot in the |
1199 |
-+ * scoreboard. Somehow we don't know about this |
1200 |
-+ * child. |
1201 |
-+ */ |
1202 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, |
1203 |
-+ 0, ap_server_conf, |
1204 |
-+ "long lost child came home! (pid %ld)", (long)pid.pid); |
1205 |
-+ } |
1206 |
-+ /* Don't perform idle maintenance when a child dies, |
1207 |
-+ * only do it when there's a timeout. Remember only a |
1208 |
-+ * finite number of children can die, and it's pretty |
1209 |
-+ * pathological for a lot to die suddenly. |
1210 |
-+ */ |
1211 |
-+ continue; |
1212 |
-+ } |
1213 |
-+ else if (remaining_children_to_start) { |
1214 |
-+ /* we hit a 1 second timeout in which none of the previous |
1215 |
-+ * generation of children needed to be reaped... so assume |
1216 |
-+ * they're all done, and pick up the slack if any is left. |
1217 |
-+ */ |
1218 |
-+ startup_children(remaining_children_to_start); |
1219 |
-+ remaining_children_to_start = 0; |
1220 |
-+ /* In any event we really shouldn't do the code below because |
1221 |
-+ * few of the servers we just started are in the IDLE state |
1222 |
-+ * yet, so we'd mistakenly create an extra server. |
1223 |
-+ */ |
1224 |
-+ continue; |
1225 |
-+ } |
1226 |
-+ |
1227 |
-+ perform_idle_server_maintenance(pconf); |
1228 |
-+#ifdef TPF |
1229 |
-+ shutdown_pending = os_check_server(tpf_server_name); |
1230 |
-+ ap_check_signals(); |
1231 |
-+ sleep(1); |
1232 |
-+#endif /*TPF */ |
1233 |
-+ } |
1234 |
-+ } /* one_process */ |
1235 |
-+ |
1236 |
-+ mpm_state = AP_MPMQ_STOPPING; |
1237 |
-+ |
1238 |
-+ if (shutdown_pending && !is_graceful) { |
1239 |
-+ /* Time to shut down: |
1240 |
-+ * Kill child processes, tell them to call child_exit, etc... |
1241 |
-+ */ |
1242 |
-+ if (unixd_killpg(getpgrp(), SIGTERM) < 0) { |
1243 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGTERM"); |
1244 |
-+ } |
1245 |
-+ ap_reclaim_child_processes(1); /* Start with SIGTERM */ |
1246 |
-+ |
1247 |
-+ /* cleanup pid file on normal shutdown */ |
1248 |
-+ { |
1249 |
-+ const char *pidfile = NULL; |
1250 |
-+ pidfile = ap_server_root_relative (pconf, ap_pid_fname); |
1251 |
-+ if ( pidfile != NULL && unlink(pidfile) == 0) |
1252 |
-+ ap_log_error(APLOG_MARK, APLOG_INFO, |
1253 |
-+ 0, ap_server_conf, |
1254 |
-+ "removed PID file %s (pid=%ld)", |
1255 |
-+ pidfile, (long)getpid()); |
1256 |
-+ } |
1257 |
-+ |
1258 |
-+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1259 |
-+ "caught SIGTERM, shutting down"); |
1260 |
-+ |
1261 |
-+ return 1; |
1262 |
-+ } else if (shutdown_pending) { |
1263 |
-+ /* Time to perform a graceful shut down: |
1264 |
-+ * Reap the inactive children, and ask the active ones |
1265 |
-+ * to close their listeners, then wait until they are |
1266 |
-+ * all done to exit. |
1267 |
-+ */ |
1268 |
-+ int active_children; |
1269 |
-+ apr_time_t cutoff = 0; |
1270 |
-+ |
1271 |
-+ /* Stop listening */ |
1272 |
-+ ap_close_listeners(); |
1273 |
-+ |
1274 |
-+ /* kill off the idle ones */ |
1275 |
-+ ap_mpm_pod_killpg(pod, ap_max_daemons_limit); |
1276 |
-+ |
1277 |
-+ /* Send SIGUSR1 to the active children */ |
1278 |
-+ active_children = 0; |
1279 |
-+ for (index = 0; index < ap_daemons_limit; ++index) { |
1280 |
-+ if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) { |
1281 |
-+ /* Ask each child to close its listeners. */ |
1282 |
-+ ap_mpm_safe_kill(MPM_CHILD_PID(index), AP_SIG_GRACEFUL); |
1283 |
-+ active_children++; |
1284 |
-+ } |
1285 |
-+ } |
1286 |
-+ |
1287 |
-+ /* Allow each child which actually finished to exit */ |
1288 |
-+ ap_relieve_child_processes(); |
1289 |
-+ |
1290 |
-+ /* cleanup pid file */ |
1291 |
-+ { |
1292 |
-+ const char *pidfile = NULL; |
1293 |
-+ pidfile = ap_server_root_relative (pconf, ap_pid_fname); |
1294 |
-+ if ( pidfile != NULL && unlink(pidfile) == 0) |
1295 |
-+ ap_log_error(APLOG_MARK, APLOG_INFO, |
1296 |
-+ 0, ap_server_conf, |
1297 |
-+ "removed PID file %s (pid=%ld)", |
1298 |
-+ pidfile, (long)getpid()); |
1299 |
-+ } |
1300 |
-+ |
1301 |
-+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1302 |
-+ "caught " AP_SIG_GRACEFUL_STOP_STRING ", shutting down gracefully"); |
1303 |
-+ |
1304 |
-+ if (ap_graceful_shutdown_timeout) { |
1305 |
-+ cutoff = apr_time_now() + |
1306 |
-+ apr_time_from_sec(ap_graceful_shutdown_timeout); |
1307 |
-+ } |
1308 |
-+ |
1309 |
-+ /* Don't really exit until each child has finished */ |
1310 |
-+ shutdown_pending = 0; |
1311 |
-+ do { |
1312 |
-+ /* Pause for a second */ |
1313 |
-+ sleep(1); |
1314 |
-+ |
1315 |
-+ /* Relieve any children which have now exited */ |
1316 |
-+ ap_relieve_child_processes(); |
1317 |
-+ |
1318 |
-+ active_children = 0; |
1319 |
-+ for (index = 0; index < ap_daemons_limit; ++index) { |
1320 |
-+ if (ap_mpm_safe_kill(MPM_CHILD_PID(index), 0) == APR_SUCCESS) { |
1321 |
-+ active_children = 1; |
1322 |
-+ /* Having just one child is enough to stay around */ |
1323 |
-+ break; |
1324 |
-+ } |
1325 |
-+ } |
1326 |
-+ } while (!shutdown_pending && active_children && |
1327 |
-+ (!ap_graceful_shutdown_timeout || apr_time_now() < cutoff)); |
1328 |
-+ |
1329 |
-+ /* We might be here because we received SIGTERM, either |
1330 |
-+ * way, try and make sure that all of our processes are |
1331 |
-+ * really dead. |
1332 |
-+ */ |
1333 |
-+ unixd_killpg(getpgrp(), SIGTERM); |
1334 |
-+ |
1335 |
-+ return 1; |
1336 |
-+ } |
1337 |
-+ |
1338 |
-+ /* we've been told to restart */ |
1339 |
-+ apr_signal(SIGHUP, SIG_IGN); |
1340 |
-+ apr_signal(AP_SIG_GRACEFUL, SIG_IGN); |
1341 |
-+ if (one_process) { |
1342 |
-+ /* not worth thinking about */ |
1343 |
-+ return 1; |
1344 |
-+ } |
1345 |
-+ |
1346 |
-+ /* advance to the next generation */ |
1347 |
-+ /* XXX: we really need to make sure this new generation number isn't in |
1348 |
-+ * use by any of the children. |
1349 |
-+ */ |
1350 |
-+ ++ap_my_generation; |
1351 |
-+ ap_scoreboard_image->global->running_generation = ap_my_generation; |
1352 |
-+ |
1353 |
-+ if (is_graceful) { |
1354 |
-+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1355 |
-+ "Graceful restart requested, doing restart"); |
1356 |
-+ |
1357 |
-+ /* kill off the idle ones */ |
1358 |
-+ ap_mpm_pod_killpg(pod, ap_max_daemons_limit); |
1359 |
-+ |
1360 |
-+ /* This is mostly for debugging... so that we know what is still |
1361 |
-+ * gracefully dealing with existing request. This will break |
1362 |
-+ * in a very nasty way if we ever have the scoreboard totally |
1363 |
-+ * file-based (no shared memory) |
1364 |
-+ */ |
1365 |
-+ for (index = 0; index < ap_daemons_limit; ++index) { |
1366 |
-+ if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) { |
1367 |
-+ ap_scoreboard_image->servers[index][0].status = SERVER_GRACEFUL; |
1368 |
-+ /* Ask each child to close its listeners. |
1369 |
-+ * |
1370 |
-+ * NOTE: we use the scoreboard, because if we send SIGUSR1 |
1371 |
-+ * to every process in the group, this may include CGI's, |
1372 |
-+ * piped loggers, etc. They almost certainly won't handle |
1373 |
-+ * it gracefully. |
1374 |
-+ */ |
1375 |
-+ ap_mpm_safe_kill(ap_scoreboard_image->parent[index].pid, AP_SIG_GRACEFUL); |
1376 |
-+ } |
1377 |
-+ } |
1378 |
-+ } |
1379 |
-+ else { |
1380 |
-+ /* Kill 'em off */ |
1381 |
-+ if (unixd_killpg(getpgrp(), SIGHUP) < 0) { |
1382 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGHUP"); |
1383 |
-+ } |
1384 |
-+ ap_reclaim_child_processes(0); /* Not when just starting up */ |
1385 |
-+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1386 |
-+ "SIGHUP received. Attempting to restart"); |
1387 |
-+ } |
1388 |
-+ |
1389 |
-+ return 0; |
1390 |
-+} |
1391 |
-+ |
1392 |
-+/* This really should be a post_config hook, but the error log is already |
1393 |
-+ * redirected by that point, so we need to do this in the open_logs phase. |
1394 |
-+ */ |
1395 |
-+static int itk_open_logs(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) |
1396 |
-+{ |
1397 |
-+ apr_status_t rv; |
1398 |
-+ |
1399 |
-+ pconf = p; |
1400 |
-+ ap_server_conf = s; |
1401 |
-+ |
1402 |
-+ if ((num_listensocks = ap_setup_listeners(ap_server_conf)) < 1) { |
1403 |
-+ ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_STARTUP, 0, |
1404 |
-+ NULL, "no listening sockets available, shutting down"); |
1405 |
-+ return DONE; |
1406 |
-+ } |
1407 |
-+ |
1408 |
-+ if ((rv = ap_mpm_pod_open(pconf, &pod))) { |
1409 |
-+ ap_log_error(APLOG_MARK, APLOG_CRIT|APLOG_STARTUP, rv, NULL, |
1410 |
-+ "Could not open pipe-of-death."); |
1411 |
-+ return DONE; |
1412 |
-+ } |
1413 |
-+ return OK; |
1414 |
-+} |
1415 |
-+ |
1416 |
-+static int itk_pre_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp) |
1417 |
-+{ |
1418 |
-+ static int restart_num = 0; |
1419 |
-+ int no_detach, debug, foreground; |
1420 |
-+ apr_status_t rv; |
1421 |
-+ |
1422 |
-+ mpm_state = AP_MPMQ_STARTING; |
1423 |
-+ |
1424 |
-+ debug = ap_exists_config_define("DEBUG"); |
1425 |
-+ |
1426 |
-+ if (debug) { |
1427 |
-+ foreground = one_process = 1; |
1428 |
-+ no_detach = 0; |
1429 |
-+ } |
1430 |
-+ else |
1431 |
-+ { |
1432 |
-+ no_detach = ap_exists_config_define("NO_DETACH"); |
1433 |
-+ one_process = ap_exists_config_define("ONE_PROCESS"); |
1434 |
-+ foreground = ap_exists_config_define("FOREGROUND"); |
1435 |
-+ } |
1436 |
-+ |
1437 |
-+ /* sigh, want this only the second time around */ |
1438 |
-+ if (restart_num++ == 1) { |
1439 |
-+ is_graceful = 0; |
1440 |
-+ |
1441 |
-+ if (!one_process && !foreground) { |
1442 |
-+ rv = apr_proc_detach(no_detach ? APR_PROC_DETACH_FOREGROUND |
1443 |
-+ : APR_PROC_DETACH_DAEMONIZE); |
1444 |
-+ if (rv != APR_SUCCESS) { |
1445 |
-+ ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL, |
1446 |
-+ "apr_proc_detach failed"); |
1447 |
-+ return HTTP_INTERNAL_SERVER_ERROR; |
1448 |
-+ } |
1449 |
-+ } |
1450 |
-+ |
1451 |
-+ parent_pid = ap_my_pid = getpid(); |
1452 |
-+ } |
1453 |
-+ |
1454 |
-+ unixd_pre_config(ptemp); |
1455 |
-+ ap_listen_pre_config(); |
1456 |
-+ ap_daemons_to_start = DEFAULT_START_DAEMON; |
1457 |
-+ ap_daemons_min_free = DEFAULT_MIN_FREE_DAEMON; |
1458 |
-+ ap_daemons_max_free = DEFAULT_MAX_FREE_DAEMON; |
1459 |
-+ ap_daemons_limit = server_limit; |
1460 |
-+ ap_pid_fname = DEFAULT_PIDLOG; |
1461 |
-+ ap_lock_fname = DEFAULT_LOCKFILE; |
1462 |
-+ ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD; |
1463 |
-+ ap_extended_status = 0; |
1464 |
-+#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE |
1465 |
-+ ap_max_mem_free = APR_ALLOCATOR_MAX_FREE_UNLIMITED; |
1466 |
-+#endif |
1467 |
-+ |
1468 |
-+ apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir)); |
1469 |
-+ |
1470 |
-+ return OK; |
1471 |
-+} |
1472 |
-+ |
1473 |
-+static int itk_post_read(request_rec *r) |
1474 |
-+{ |
1475 |
-+ uid_t wanted_uid; |
1476 |
-+ gid_t wanted_gid; |
1477 |
-+ const char *wanted_username; |
1478 |
-+ int err = 0; |
1479 |
-+ |
1480 |
-+ itk_server_conf *sconf = |
1481 |
-+ (itk_server_conf *) ap_get_module_config(r->server->module_config, &mpm_itk_module); |
1482 |
-+ |
1483 |
-+ /* Enforce MaxClientsVhost. */ |
1484 |
-+ if (sconf->max_clients_vhost > 0) { |
1485 |
-+ int i, num_other_servers = 0; |
1486 |
-+ for (i = 0; i < ap_daemons_limit; ++i) { |
1487 |
-+ worker_score *ws = &ap_scoreboard_image->servers[i][0]; |
1488 |
-+ if (ws->status >= SERVER_BUSY_READ && strncmp(ws->vhost, r->server->server_hostname, 31) == 0) |
1489 |
-+ ++num_other_servers; |
1490 |
-+ } |
1491 |
-+ |
1492 |
-+ if (num_other_servers > sconf->max_clients_vhost) { |
1493 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
1494 |
-+ "MaxClientsVhost reached for %s, refusing client.", |
1495 |
-+ r->server->server_hostname); |
1496 |
-+ return HTTP_SERVICE_UNAVAILABLE; |
1497 |
-+ } |
1498 |
-+ } |
1499 |
-+ |
1500 |
-+ strncpy(ap_scoreboard_image->servers[my_child_num][0].vhost, r->server->server_hostname, 31); |
1501 |
-+ ap_scoreboard_image->servers[my_child_num][0].vhost[31] = 0; |
1502 |
-+ |
1503 |
-+ if (setpriority(PRIO_PROCESS, 0, sconf->nice_value)) { |
1504 |
-+ _DBG("setpriority(): %s", strerror(errno)); |
1505 |
-+ err = 1; |
1506 |
-+ } |
1507 |
-+ |
1508 |
-+ wanted_uid = sconf->uid; |
1509 |
-+ wanted_gid = sconf->gid; |
1510 |
-+ wanted_username = sconf->username; |
1511 |
-+ |
1512 |
-+ if (wanted_uid == -1 || wanted_gid == -1) { |
1513 |
-+ wanted_uid = unixd_config.user_id; |
1514 |
-+ wanted_gid = unixd_config.group_id; |
1515 |
-+ wanted_username = unixd_config.user_name; |
1516 |
-+ } |
1517 |
-+ |
1518 |
-+ if (!err && wanted_uid != -1 && wanted_gid != -1 && (getuid() != wanted_uid || getgid() != wanted_gid)) { |
1519 |
-+ if (setgid(wanted_gid)) { |
1520 |
-+ _DBG("setgid(): %s", strerror(errno)); |
1521 |
-+ err = 1; |
1522 |
-+ } else if (initgroups(wanted_username, wanted_gid)) { |
1523 |
-+ _DBG("initgroups(): %s", strerror(errno)); |
1524 |
-+ err = 1; |
1525 |
-+ } else if (setuid(wanted_uid)) { |
1526 |
-+ _DBG("setuid(): %s", strerror(errno)); |
1527 |
-+ err = 1; |
1528 |
-+ } |
1529 |
-+ } |
1530 |
-+ |
1531 |
-+ /* |
1532 |
-+ * Most likely a case of switching uid/gid within a persistent |
1533 |
-+ * connection; the RFCs allow us to just close the connection |
1534 |
-+ * at anytime, so we excercise our right. :-) |
1535 |
-+ */ |
1536 |
-+ if (err) { |
1537 |
-+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
1538 |
-+ "Couldn't set uid/gid/priority, closing connection."); |
1539 |
-+ ap_lingering_close(r->connection); |
1540 |
-+ exit(0); |
1541 |
-+ } |
1542 |
-+ return OK; |
1543 |
-+} |
1544 |
-+ |
1545 |
-+static void itk_hooks(apr_pool_t *p) |
1546 |
-+{ |
1547 |
-+ /* The itk open_logs phase must run before the core's, or stderr |
1548 |
-+ * will be redirected to a file, and the messages won't print to the |
1549 |
-+ * console. |
1550 |
-+ */ |
1551 |
-+ static const char *const aszSucc[] = {"core.c", NULL}; |
1552 |
-+ |
1553 |
-+#ifdef AUX3 |
1554 |
-+ (void) set42sig(); |
1555 |
-+#endif |
1556 |
-+ |
1557 |
-+ ap_hook_open_logs(itk_open_logs, NULL, aszSucc, APR_HOOK_MIDDLE); |
1558 |
-+ /* we need to set the MPM state before other pre-config hooks use MPM query |
1559 |
-+ * to retrieve it, so register as REALLY_FIRST |
1560 |
-+ */ |
1561 |
-+ ap_hook_pre_config(itk_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST); |
1562 |
-+ |
1563 |
-+ /* set the uid as fast as possible */ |
1564 |
-+ ap_hook_post_read_request(itk_post_read, NULL, NULL, APR_HOOK_REALLY_FIRST); |
1565 |
-+} |
1566 |
-+ |
1567 |
-+static const char *set_daemons_to_start(cmd_parms *cmd, void *dummy, const char *arg) |
1568 |
-+{ |
1569 |
-+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1570 |
-+ if (err != NULL) { |
1571 |
-+ return err; |
1572 |
-+ } |
1573 |
-+ |
1574 |
-+ ap_daemons_to_start = atoi(arg); |
1575 |
-+ return NULL; |
1576 |
-+} |
1577 |
-+ |
1578 |
-+static const char *set_min_free_servers(cmd_parms *cmd, void *dummy, const char *arg) |
1579 |
-+{ |
1580 |
-+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1581 |
-+ if (err != NULL) { |
1582 |
-+ return err; |
1583 |
-+ } |
1584 |
-+ |
1585 |
-+ ap_daemons_min_free = atoi(arg); |
1586 |
-+ if (ap_daemons_min_free <= 0) { |
1587 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1588 |
-+ "WARNING: detected MinSpareServers set to non-positive."); |
1589 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1590 |
-+ "Resetting to 1 to avoid almost certain Apache failure."); |
1591 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1592 |
-+ "Please read the documentation."); |
1593 |
-+ ap_daemons_min_free = 1; |
1594 |
-+ } |
1595 |
-+ |
1596 |
-+ return NULL; |
1597 |
-+} |
1598 |
-+ |
1599 |
-+static const char *set_max_free_servers(cmd_parms *cmd, void *dummy, const char *arg) |
1600 |
-+{ |
1601 |
-+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1602 |
-+ if (err != NULL) { |
1603 |
-+ return err; |
1604 |
-+ } |
1605 |
-+ |
1606 |
-+ ap_daemons_max_free = atoi(arg); |
1607 |
-+ return NULL; |
1608 |
-+} |
1609 |
-+ |
1610 |
-+static const char *set_max_clients (cmd_parms *cmd, void *dummy, const char *arg) |
1611 |
-+{ |
1612 |
-+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1613 |
-+ if (err != NULL) { |
1614 |
-+ return err; |
1615 |
-+ } |
1616 |
-+ |
1617 |
-+ ap_daemons_limit = atoi(arg); |
1618 |
-+ if (ap_daemons_limit > server_limit) { |
1619 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1620 |
-+ "WARNING: MaxClients of %d exceeds ServerLimit value " |
1621 |
-+ "of %d servers,", ap_daemons_limit, server_limit); |
1622 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1623 |
-+ " lowering MaxClients to %d. To increase, please " |
1624 |
-+ "see the ServerLimit", server_limit); |
1625 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1626 |
-+ " directive."); |
1627 |
-+ ap_daemons_limit = server_limit; |
1628 |
-+ } |
1629 |
-+ else if (ap_daemons_limit < 1) { |
1630 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1631 |
-+ "WARNING: Require MaxClients > 0, setting to 1"); |
1632 |
-+ ap_daemons_limit = 1; |
1633 |
-+ } |
1634 |
-+ return NULL; |
1635 |
-+} |
1636 |
-+ |
1637 |
-+static const char *set_server_limit (cmd_parms *cmd, void *dummy, const char *arg) |
1638 |
-+{ |
1639 |
-+ int tmp_server_limit; |
1640 |
-+ |
1641 |
-+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1642 |
-+ if (err != NULL) { |
1643 |
-+ return err; |
1644 |
-+ } |
1645 |
-+ |
1646 |
-+ tmp_server_limit = atoi(arg); |
1647 |
-+ /* you cannot change ServerLimit across a restart; ignore |
1648 |
-+ * any such attempts |
1649 |
-+ */ |
1650 |
-+ if (first_server_limit && |
1651 |
-+ tmp_server_limit != server_limit) { |
1652 |
-+ /* how do we log a message? the error log is a bit bucket at this |
1653 |
-+ * point; we'll just have to set a flag so that ap_mpm_run() |
1654 |
-+ * logs a warning later |
1655 |
-+ */ |
1656 |
-+ changed_limit_at_restart = 1; |
1657 |
-+ return NULL; |
1658 |
-+ } |
1659 |
-+ server_limit = tmp_server_limit; |
1660 |
-+ |
1661 |
-+ if (server_limit > MAX_SERVER_LIMIT) { |
1662 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1663 |
-+ "WARNING: ServerLimit of %d exceeds compile time limit " |
1664 |
-+ "of %d servers,", server_limit, MAX_SERVER_LIMIT); |
1665 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1666 |
-+ " lowering ServerLimit to %d.", MAX_SERVER_LIMIT); |
1667 |
-+ server_limit = MAX_SERVER_LIMIT; |
1668 |
-+ } |
1669 |
-+ else if (server_limit < 1) { |
1670 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1671 |
-+ "WARNING: Require ServerLimit > 0, setting to 1"); |
1672 |
-+ server_limit = 1; |
1673 |
-+ } |
1674 |
-+ return NULL; |
1675 |
-+} |
1676 |
-+ |
1677 |
-+static const char *assign_user_id (cmd_parms *cmd, void *dummy, const char *user_name, const char *group_name) |
1678 |
-+{ |
1679 |
-+ itk_server_conf *sconf = |
1680 |
-+ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
1681 |
-+ sconf->username = strdup(user_name); |
1682 |
-+ sconf->uid = ap_uname2id(user_name); |
1683 |
-+ sconf->gid = ap_gname2id(group_name); |
1684 |
-+ return NULL; |
1685 |
-+} |
1686 |
-+ |
1687 |
-+static const char *set_max_clients_vhost (cmd_parms *cmd, void *dummy, const char *arg) |
1688 |
-+{ |
1689 |
-+ itk_server_conf *sconf = |
1690 |
-+ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
1691 |
-+ sconf->max_clients_vhost = atoi(arg); |
1692 |
-+ return NULL; |
1693 |
-+} |
1694 |
-+ |
1695 |
-+static const char *set_nice_value (cmd_parms *cmd, void *dummy, const char *arg) |
1696 |
-+{ |
1697 |
-+ itk_server_conf *sconf = |
1698 |
-+ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
1699 |
-+ int nice_value = atoi(arg); |
1700 |
-+ |
1701 |
-+ if (nice_value < -20) { |
1702 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1703 |
-+ "WARNING: NiceValue of %d is below -20, increasing NiceValue to -20.", |
1704 |
-+ nice_value); |
1705 |
-+ nice_value = -20; |
1706 |
-+ } |
1707 |
-+ else if (nice_value > 19) { |
1708 |
-+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1709 |
-+ "WARNING: NiceValue of %d is above 19, lowering NiceValue to 19.", |
1710 |
-+ nice_value); |
1711 |
-+ nice_value = 19; |
1712 |
-+ } |
1713 |
-+ sconf->nice_value = nice_value; |
1714 |
-+ return NULL; |
1715 |
-+} |
1716 |
-+ |
1717 |
-+static const command_rec itk_cmds[] = { |
1718 |
-+UNIX_DAEMON_COMMANDS, |
1719 |
-+LISTEN_COMMANDS, |
1720 |
-+AP_INIT_TAKE1("StartServers", set_daemons_to_start, NULL, RSRC_CONF, |
1721 |
-+ "Number of child processes launched at server startup"), |
1722 |
-+AP_INIT_TAKE1("MinSpareServers", set_min_free_servers, NULL, RSRC_CONF, |
1723 |
-+ "Minimum number of idle children, to handle request spikes"), |
1724 |
-+AP_INIT_TAKE1("MaxSpareServers", set_max_free_servers, NULL, RSRC_CONF, |
1725 |
-+ "Maximum number of idle children"), |
1726 |
-+AP_INIT_TAKE1("MaxClients", set_max_clients, NULL, RSRC_CONF, |
1727 |
-+ "Maximum number of children alive at the same time"), |
1728 |
-+AP_INIT_TAKE1("ServerLimit", set_server_limit, NULL, RSRC_CONF, |
1729 |
-+ "Maximum value of MaxClients for this run of Apache"), |
1730 |
-+AP_INIT_TAKE2("AssignUserID", assign_user_id, NULL, RSRC_CONF, |
1731 |
-+ "Tie a virtual host to a specific child process."), |
1732 |
-+AP_INIT_TAKE1("MaxClientsVHost", set_max_clients_vhost, NULL, RSRC_CONF, |
1733 |
-+ "Maximum number of children alive at the same time for this virtual host."), |
1734 |
-+AP_INIT_TAKE1("NiceValue", set_nice_value, NULL, RSRC_CONF, |
1735 |
-+ "Set nice value for the given vhost, from -20 (highest priority) to 19 (lowest priority)."), |
1736 |
-+AP_GRACEFUL_SHUTDOWN_TIMEOUT_COMMAND, |
1737 |
-+{ NULL } |
1738 |
-+}; |
1739 |
-+ |
1740 |
-+/* == allocate a private server config structure == */ |
1741 |
-+static void *itk_create_config(apr_pool_t *p, server_rec *s) |
1742 |
-+{ |
1743 |
-+ itk_server_conf *c = (itk_server_conf *) |
1744 |
-+ apr_pcalloc(p, sizeof(itk_server_conf)); |
1745 |
-+ c->uid = c->gid = -1; |
1746 |
-+ c->max_clients_vhost = -1; |
1747 |
-+ c->nice_value = 0; |
1748 |
-+ return c; |
1749 |
-+} |
1750 |
-+ |
1751 |
-+module AP_MODULE_DECLARE_DATA mpm_itk_module = { |
1752 |
-+ MPM20_MODULE_STUFF, |
1753 |
-+ ap_mpm_rewrite_args, /* hook to run before apache parses args */ |
1754 |
-+ NULL, /* create per-directory config structure */ |
1755 |
-+ NULL, /* merge per-directory config structures */ |
1756 |
-+ itk_create_config, /* create per-server config structure */ |
1757 |
-+ NULL, /* merge per-server config structures */ |
1758 |
-+ itk_cmds, /* command apr_table_t */ |
1759 |
-+ itk_hooks, /* register hooks */ |
1760 |
-+}; |
1761 |
-unchanged: |
1762 |
---- apache2.2/server/mpm/experimental/itk/mpm.h |
1763 |
-+++ apache2.2/server/mpm/experimental/itk/mpm.h 2007-01-29 21:22:33.000000000 +0100 |
1764 |
-@@ -0,0 +1,65 @@ |
1765 |
-+/* Licensed to the Apache Software Foundation (ASF) under one or more |
1766 |
-+ * contributor license agreements. See the NOTICE file distributed with |
1767 |
-+ * this work for additional information regarding copyright ownership. |
1768 |
-+ * The ASF licenses this file to You under the Apache License, Version 2.0 |
1769 |
-+ * (the "License"); you may not use this file except in compliance with |
1770 |
-+ * the License. You may obtain a copy of the License at |
1771 |
-+ * |
1772 |
-+ * http://www.apache.org/licenses/LICENSE-2.0 |
1773 |
-+ * |
1774 |
-+ * Unless required by applicable law or agreed to in writing, software |
1775 |
-+ * distributed under the License is distributed on an "AS IS" BASIS, |
1776 |
-+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1777 |
-+ * See the License for the specific language governing permissions and |
1778 |
-+ * limitations under the License. |
1779 |
-+ * |
1780 |
-+ * Portions copyright 2005-2007 Steinar H. Gunderson <sgunderson@×××××××.com>. |
1781 |
-+ * Licensed under the same terms as the rest of Apache. |
1782 |
-+ */ |
1783 |
-+ |
1784 |
-+/** |
1785 |
-+ * @file itk/mpm.h |
1786 |
-+ * @brief ITK MPM (setuid per-vhost, no threads) |
1787 |
-+ * |
1788 |
-+ * @defgroup APACHE_MPM_ITK Apache ITK |
1789 |
-+ * @ingroup APACHE_MPM APACHE_OS_UNIX |
1790 |
-+ * @{ |
1791 |
-+ */ |
1792 |
-+ |
1793 |
-+#include "httpd.h" |
1794 |
-+#include "mpm_default.h" |
1795 |
-+#include "scoreboard.h" |
1796 |
-+#include "unixd.h" |
1797 |
-+ |
1798 |
-+#ifndef APACHE_MPM_ITK_H |
1799 |
-+#define APACHE_MPM_ITK_H |
1800 |
-+ |
1801 |
-+#define ITK_MPM |
1802 |
-+ |
1803 |
-+#define MPM_NAME "ITK" |
1804 |
-+ |
1805 |
-+#define AP_MPM_WANT_RECLAIM_CHILD_PROCESSES |
1806 |
-+#define AP_MPM_WANT_WAIT_OR_TIMEOUT |
1807 |
-+#define AP_MPM_WANT_PROCESS_CHILD_STATUS |
1808 |
-+#define AP_MPM_WANT_SET_PIDFILE |
1809 |
-+#define AP_MPM_WANT_SET_SCOREBOARD |
1810 |
-+#define AP_MPM_WANT_SET_LOCKFILE |
1811 |
-+#define AP_MPM_WANT_SET_MAX_REQUESTS |
1812 |
-+#define AP_MPM_WANT_SET_COREDUMPDIR |
1813 |
-+#define AP_MPM_WANT_SET_ACCEPT_LOCK_MECH |
1814 |
-+#define AP_MPM_WANT_SIGNAL_SERVER |
1815 |
-+#define AP_MPM_WANT_SET_MAX_MEM_FREE |
1816 |
-+#define AP_MPM_WANT_FATAL_SIGNAL_HANDLER |
1817 |
-+#define AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN |
1818 |
-+#define AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK |
1819 |
-+ |
1820 |
-+#define AP_MPM_USES_POD 1 |
1821 |
-+#define MPM_CHILD_PID(i) (ap_scoreboard_image->parent[i].pid) |
1822 |
-+#define MPM_NOTE_CHILD_KILLED(i) (MPM_CHILD_PID(i) = 0) |
1823 |
-+#define MPM_ACCEPT_FUNC unixd_accept |
1824 |
-+ |
1825 |
-+extern int ap_threads_per_child; |
1826 |
-+extern int ap_max_daemons_limit; |
1827 |
-+extern server_rec *ap_server_conf; |
1828 |
-+#endif /* APACHE_MPM_ITK_H */ |
1829 |
-+/** @} */ |
1830 |
-unchanged: |
1831 |
---- apache2.2/server/mpm/experimental/itk/mpm_default.h |
1832 |
-+++ apache2.2/server/mpm/experimental/itk/mpm_default.h 2007-01-29 21:22:09.000000000 +0100 |
1833 |
-@@ -0,0 +1,77 @@ |
1834 |
-+/* Licensed to the Apache Software Foundation (ASF) under one or more |
1835 |
-+ * contributor license agreements. See the NOTICE file distributed with |
1836 |
-+ * this work for additional information regarding copyright ownership. |
1837 |
-+ * The ASF licenses this file to You under the Apache License, Version 2.0 |
1838 |
-+ * (the "License"); you may not use this file except in compliance with |
1839 |
-+ * the License. You may obtain a copy of the License at |
1840 |
-+ * |
1841 |
-+ * http://www.apache.org/licenses/LICENSE-2.0 |
1842 |
-+ * |
1843 |
-+ * Unless required by applicable law or agreed to in writing, software |
1844 |
-+ * distributed under the License is distributed on an "AS IS" BASIS, |
1845 |
-+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1846 |
-+ * See the License for the specific language governing permissions and |
1847 |
-+ * limitations under the License. |
1848 |
-+ * |
1849 |
-+ * Portions copyright 2005-2007 Steinar H. Gunderson <sgunderson@×××××××.com>. |
1850 |
-+ * Licensed under the same terms as the rest of Apache. |
1851 |
-+ */ |
1852 |
-+ |
1853 |
-+/** |
1854 |
-+ * @file itk/mpm_default.h |
1855 |
-+ * @brief ITK MPM defaults |
1856 |
-+ * |
1857 |
-+ * @addtogroup APACHE_MPM_ITK |
1858 |
-+ * @{ |
1859 |
-+ */ |
1860 |
-+ |
1861 |
-+#ifndef APACHE_MPM_DEFAULT_H |
1862 |
-+#define APACHE_MPM_DEFAULT_H |
1863 |
-+ |
1864 |
-+/* Number of servers to spawn off by default --- also, if fewer than |
1865 |
-+ * this free when the caretaker checks, it will spawn more. |
1866 |
-+ */ |
1867 |
-+#ifndef DEFAULT_START_DAEMON |
1868 |
-+#define DEFAULT_START_DAEMON 5 |
1869 |
-+#endif |
1870 |
-+ |
1871 |
-+/* Maximum number of *free* server processes --- more than this, and |
1872 |
-+ * they will die off. |
1873 |
-+ */ |
1874 |
-+ |
1875 |
-+#ifndef DEFAULT_MAX_FREE_DAEMON |
1876 |
-+#define DEFAULT_MAX_FREE_DAEMON 10 |
1877 |
-+#endif |
1878 |
-+ |
1879 |
-+/* Minimum --- fewer than this, and more will be created */ |
1880 |
-+ |
1881 |
-+#ifndef DEFAULT_MIN_FREE_DAEMON |
1882 |
-+#define DEFAULT_MIN_FREE_DAEMON 5 |
1883 |
-+#endif |
1884 |
-+ |
1885 |
-+/* File used for accept locking, when we use a file */ |
1886 |
-+#ifndef DEFAULT_LOCKFILE |
1887 |
-+#define DEFAULT_LOCKFILE DEFAULT_REL_RUNTIMEDIR "/accept.lock" |
1888 |
-+#endif |
1889 |
-+ |
1890 |
-+/* Where the main/parent process's pid is logged */ |
1891 |
-+#ifndef DEFAULT_PIDLOG |
1892 |
-+#define DEFAULT_PIDLOG DEFAULT_REL_RUNTIMEDIR "/httpd.pid" |
1893 |
-+#endif |
1894 |
-+ |
1895 |
-+/* |
1896 |
-+ * Interval, in microseconds, between scoreboard maintenance. |
1897 |
-+ */ |
1898 |
-+#ifndef SCOREBOARD_MAINTENANCE_INTERVAL |
1899 |
-+#define SCOREBOARD_MAINTENANCE_INTERVAL 1000000 |
1900 |
-+#endif |
1901 |
-+ |
1902 |
-+/* Number of requests to try to handle in a single process. If <= 0, |
1903 |
-+ * the children don't die off. |
1904 |
-+ */ |
1905 |
-+#ifndef DEFAULT_MAX_REQUESTS_PER_CHILD |
1906 |
-+#define DEFAULT_MAX_REQUESTS_PER_CHILD 10000 |
1907 |
-+#endif |
1908 |
-+ |
1909 |
-+#endif /* AP_MPM_DEFAULT_H */ |
1910 |
-+/** @} */ |
1911 |
-unchanged: |
1912 |
---- apache2.2/server/mpm/config.m4 2007-01-29 21:30:35.000000000 +0100 |
1913 |
-+++ apache2.2/server/mpm/config.m4 |
1914 |
-@@ -1,7 +1,7 @@ |
1915 |
- AC_MSG_CHECKING(which MPM to use) |
1916 |
- AC_ARG_WITH(mpm, |
1917 |
- APACHE_HELP_STRING(--with-mpm=MPM,Choose the process model for Apache to use. |
1918 |
-- MPM={beos|event|worker|prefork|mpmt_os2|peruser}),[ |
1919 |
-+ MPM={beos|event|worker|prefork|mpmt_os2|peruser|itk}),[ |
1920 |
- APACHE_MPM=$withval |
1921 |
- ],[ |
1922 |
- if test "x$APACHE_MPM" = "x"; then |
1923 |
-@@ -23,7 +23,7 @@ |
1924 |
- |
1925 |
- ap_mpm_is_experimental () |
1926 |
- { |
1927 |
-- if test "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "peruser" ; then |
1928 |
-+ if test "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "peruser" -o "$apache_cv_mpm" = "itk" ; then |
1929 |
- return 0 |
1930 |
- else |
1931 |
- return 1 |
1932 |
-@@ -66,6 +66,11 @@ |
1933 |
- else |
1934 |
- MPM_SUBDIR_NAME=$MPM_NAME |
1935 |
- fi |
1936 |
-+ |
1937 |
-+if test "$apache_cv_mpm" = "itk" ; then |
1938 |
-+ AC_CHECK_LIB(cap, cap_init) |
1939 |
-+fi |
1940 |
-+ |
1941 |
- MPM_DIR=server/mpm/$MPM_SUBDIR_NAME |
1942 |
- MPM_LIB=$MPM_DIR/lib${MPM_NAME}.la |
1943 |
- |
1944 |
|
1945 |
Added: trunk/dist/2.2/patches/21_all_itk_20080727.patch |
1946 |
=================================================================== |
1947 |
--- trunk/dist/2.2/patches/21_all_itk_20080727.patch (rev 0) |
1948 |
+++ trunk/dist/2.2/patches/21_all_itk_20080727.patch 2009-01-01 13:50:31 UTC (rev 220) |
1949 |
@@ -0,0 +1,1907 @@ |
1950 |
+unchanged: |
1951 |
+--- apache2.2/server/mpm/experimental/itk/Makefile.in |
1952 |
++++ apache2.2/server/mpm/experimental/itk/Makefile.in |
1953 |
+@@ -0,0 +1,5 @@ |
1954 |
++ |
1955 |
++LTLIBRARY_NAME = libitk.la |
1956 |
++LTLIBRARY_SOURCES = itk.c |
1957 |
++ |
1958 |
++include $(top_srcdir)/build/ltlib.mk |
1959 |
+unchanged: |
1960 |
+--- apache2.2/server/mpm/experimental/itk/config.m4 |
1961 |
++++ apache2.2/server/mpm/experimental/itk/config.m4 2007-01-29 21:03:57.000000000 +0100 |
1962 |
+@@ -0,0 +1,3 @@ |
1963 |
++if test "$MPM_NAME" = "itk" ; then |
1964 |
++ APACHE_FAST_OUTPUT(server/mpm/$MPM_SUBDIR_NAME/Makefile) |
1965 |
++fi |
1966 |
+diff -u apache2.2/server/mpm/experimental/itk/itk.c apache2.2/server/mpm/experimental/itk/itk.c |
1967 |
+--- apache2.2/server/mpm/experimental/itk/itk.c |
1968 |
++++ apache2.2/server/mpm/experimental/itk/itk.c |
1969 |
+@@ -0,0 +1,1704 @@ |
1970 |
++/* Licensed to the Apache Software Foundation (ASF) under one or more |
1971 |
++ * contributor license agreements. See the NOTICE file distributed with |
1972 |
++ * this work for additional information regarding copyright ownership. |
1973 |
++ * The ASF licenses this file to You under the Apache License, Version 2.0 |
1974 |
++ * (the "License"); you may not use this file except in compliance with |
1975 |
++ * the License. You may obtain a copy of the License at |
1976 |
++ * |
1977 |
++ * http://www.apache.org/licenses/LICENSE-2.0 |
1978 |
++ * |
1979 |
++ * Unless required by applicable law or agreed to in writing, software |
1980 |
++ * distributed under the License is distributed on an "AS IS" BASIS, |
1981 |
++ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1982 |
++ * See the License for the specific language governing permissions and |
1983 |
++ * limitations under the License. |
1984 |
++ * |
1985 |
++ * Portions copyright 2005-2007 Steinar H. Gunderson <sgunderson@×××××××.com>. |
1986 |
++ * Licensed under the same terms as the rest of Apache. |
1987 |
++ */ |
1988 |
++ |
1989 |
++#include "apr.h" |
1990 |
++#include "apr_portable.h" |
1991 |
++#include "apr_strings.h" |
1992 |
++#include "apr_thread_proc.h" |
1993 |
++#include "apr_signal.h" |
1994 |
++ |
1995 |
++# define _DBG(text,par...) \ |
1996 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
1997 |
++ "(itkmpm: pid=%d uid=%d) %s(): " text, \ |
1998 |
++ getpid(), getuid(), __FUNCTION__, par) |
1999 |
++ |
2000 |
++#define APR_WANT_STDIO |
2001 |
++#define APR_WANT_STRFUNC |
2002 |
++#include "apr_want.h" |
2003 |
++ |
2004 |
++#if APR_HAVE_UNISTD_H |
2005 |
++#include <unistd.h> |
2006 |
++#endif |
2007 |
++#if APR_HAVE_SYS_TYPES_H |
2008 |
++#include <sys/types.h> |
2009 |
++#endif |
2010 |
++ |
2011 |
++#define CORE_PRIVATE |
2012 |
++ |
2013 |
++#include "ap_config.h" |
2014 |
++#include "httpd.h" |
2015 |
++#include "mpm_default.h" |
2016 |
++#include "http_main.h" |
2017 |
++#include "http_log.h" |
2018 |
++#include "http_config.h" |
2019 |
++#include "http_core.h" /* for get_remote_host */ |
2020 |
++#include "http_connection.h" |
2021 |
++#include "http_protocol.h" /* for ap_hook_post_read_request */ |
2022 |
++#include "scoreboard.h" |
2023 |
++#include "ap_mpm.h" |
2024 |
++#include "unixd.h" |
2025 |
++#include "mpm_common.h" |
2026 |
++#include "ap_listen.h" |
2027 |
++#include "ap_mmn.h" |
2028 |
++#include "apr_poll.h" |
2029 |
++ |
2030 |
++#ifdef HAVE_BSTRING_H |
2031 |
++#include <bstring.h> /* for IRIX, FD_SET calls bzero() */ |
2032 |
++#endif |
2033 |
++#ifdef HAVE_TIME_H |
2034 |
++#include <time.h> |
2035 |
++#endif |
2036 |
++#ifdef HAVE_SYS_PROCESSOR_H |
2037 |
++#include <sys/processor.h> /* for bindprocessor() */ |
2038 |
++#endif |
2039 |
++ |
2040 |
++#if HAVE_LIBCAP |
2041 |
++#include <sys/capability.h> |
2042 |
++#endif |
2043 |
++ |
2044 |
++#include <signal.h> |
2045 |
++#include <sys/times.h> |
2046 |
++ |
2047 |
++/* Limit on the total --- clients will be locked out if more servers than |
2048 |
++ * this are needed. It is intended solely to keep the server from crashing |
2049 |
++ * when things get out of hand. |
2050 |
++ * |
2051 |
++ * We keep a hard maximum number of servers, for two reasons --- first off, |
2052 |
++ * in case something goes seriously wrong, we want to stop the fork bomb |
2053 |
++ * short of actually crashing the machine we're running on by filling some |
2054 |
++ * kernel table. Secondly, it keeps the size of the scoreboard file small |
2055 |
++ * enough that we can read the whole thing without worrying too much about |
2056 |
++ * the overhead. |
2057 |
++ */ |
2058 |
++#ifndef DEFAULT_SERVER_LIMIT |
2059 |
++#define DEFAULT_SERVER_LIMIT 256 |
2060 |
++#endif |
2061 |
++ |
2062 |
++/* Admin can't tune ServerLimit beyond MAX_SERVER_LIMIT. We want |
2063 |
++ * some sort of compile-time limit to help catch typos. |
2064 |
++ */ |
2065 |
++#ifndef MAX_SERVER_LIMIT |
2066 |
++#define MAX_SERVER_LIMIT 200000 |
2067 |
++#endif |
2068 |
++ |
2069 |
++#ifndef HARD_THREAD_LIMIT |
2070 |
++#define HARD_THREAD_LIMIT 1 |
2071 |
++#endif |
2072 |
++ |
2073 |
++/* config globals */ |
2074 |
++ |
2075 |
++int ap_threads_per_child=0; /* Worker threads per child */ |
2076 |
++static apr_proc_mutex_t *accept_mutex; |
2077 |
++static int ap_daemons_to_start=0; |
2078 |
++static int ap_daemons_min_free=0; |
2079 |
++static int ap_daemons_max_free=0; |
2080 |
++static int ap_daemons_limit=0; /* MaxClients */ |
2081 |
++static int server_limit = DEFAULT_SERVER_LIMIT; |
2082 |
++static int first_server_limit = 0; |
2083 |
++static int changed_limit_at_restart; |
2084 |
++static int mpm_state = AP_MPMQ_STARTING; |
2085 |
++static ap_pod_t *pod; |
2086 |
++ |
2087 |
++/* |
2088 |
++ * The max child slot ever assigned, preserved across restarts. Necessary |
2089 |
++ * to deal with MaxClients changes across AP_SIG_GRACEFUL restarts. We |
2090 |
++ * use this value to optimize routines that have to scan the entire scoreboard. |
2091 |
++ */ |
2092 |
++int ap_max_daemons_limit = -1; |
2093 |
++server_rec *ap_server_conf; |
2094 |
++ |
2095 |
++/* one_process --- debugging mode variable; can be set from the command line |
2096 |
++ * with the -X flag. If set, this gets you the child_main loop running |
2097 |
++ * in the process which originally started up (no detach, no make_child), |
2098 |
++ * which is a pretty nice debugging environment. (You'll get a SIGHUP |
2099 |
++ * early in standalone_main; just continue through. This is the server |
2100 |
++ * trying to kill off any child processes which it might have lying |
2101 |
++ * around --- Apache doesn't keep track of their pids, it just sends |
2102 |
++ * SIGHUP to the process group, ignoring it in the root process. |
2103 |
++ * Continue through and you'll be fine.). |
2104 |
++ */ |
2105 |
++ |
2106 |
++static int one_process = 0; |
2107 |
++ |
2108 |
++static apr_pool_t *pconf; /* Pool for config stuff */ |
2109 |
++static apr_pool_t *pchild; /* Pool for httpd child stuff */ |
2110 |
++ |
2111 |
++static pid_t ap_my_pid; /* it seems silly to call getpid all the time */ |
2112 |
++static pid_t parent_pid; |
2113 |
++#ifndef MULTITHREAD |
2114 |
++static int my_child_num; |
2115 |
++#endif |
2116 |
++ap_generation_t volatile ap_my_generation=0; |
2117 |
++ |
2118 |
++#ifdef TPF |
2119 |
++int tpf_child = 0; |
2120 |
++char tpf_server_name[INETD_SERVNAME_LENGTH+1]; |
2121 |
++#endif /* TPF */ |
2122 |
++ |
2123 |
++static volatile int die_now = 0; |
2124 |
++static volatile int listeners_closed = 0; |
2125 |
++static int active_connection = 0; |
2126 |
++ |
2127 |
++typedef struct |
2128 |
++{ |
2129 |
++ uid_t uid; |
2130 |
++ gid_t gid; |
2131 |
++ char *username; |
2132 |
++ int max_clients_vhost; |
2133 |
++ int nice_value; |
2134 |
++} itk_server_conf; |
2135 |
++ |
2136 |
++module AP_MODULE_DECLARE_DATA mpm_itk_module; |
2137 |
++ |
2138 |
++#ifdef GPROF |
2139 |
++/* |
2140 |
++ * change directory for gprof to plop the gmon.out file |
2141 |
++ * configure in httpd.conf: |
2142 |
++ * GprofDir $RuntimeDir/ -> $ServerRoot/$RuntimeDir/gmon.out |
2143 |
++ * GprofDir $RuntimeDir/% -> $ServerRoot/$RuntimeDir/gprof.$pid/gmon.out |
2144 |
++ */ |
2145 |
++static void chdir_for_gprof(void) |
2146 |
++{ |
2147 |
++ core_server_config *sconf = |
2148 |
++ ap_get_module_config(ap_server_conf->module_config, &core_module); |
2149 |
++ char *dir = sconf->gprof_dir; |
2150 |
++ const char *use_dir; |
2151 |
++ |
2152 |
++ if(dir) { |
2153 |
++ apr_status_t res; |
2154 |
++ char *buf = NULL ; |
2155 |
++ int len = strlen(sconf->gprof_dir) - 1; |
2156 |
++ if(*(dir + len) == '%') { |
2157 |
++ dir[len] = '\0'; |
2158 |
++ buf = ap_append_pid(pconf, dir, "gprof."); |
2159 |
++ } |
2160 |
++ use_dir = ap_server_root_relative(pconf, buf ? buf : dir); |
2161 |
++ res = apr_dir_make(use_dir, |
2162 |
++ APR_UREAD | APR_UWRITE | APR_UEXECUTE | |
2163 |
++ APR_GREAD | APR_GEXECUTE | |
2164 |
++ APR_WREAD | APR_WEXECUTE, pconf); |
2165 |
++ if(res != APR_SUCCESS && !APR_STATUS_IS_EEXIST(res)) { |
2166 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, res, ap_server_conf, |
2167 |
++ "gprof: error creating directory %s", dir); |
2168 |
++ } |
2169 |
++ } |
2170 |
++ else { |
2171 |
++ use_dir = ap_server_root_relative(pconf, DEFAULT_REL_RUNTIMEDIR); |
2172 |
++ } |
2173 |
++ |
2174 |
++ chdir(use_dir); |
2175 |
++} |
2176 |
++#else |
2177 |
++#define chdir_for_gprof() |
2178 |
++#endif |
2179 |
++ |
2180 |
++/* XXX - I don't know if TPF will ever use this module or not, so leave |
2181 |
++ * the ap_check_signals calls in but disable them - manoj */ |
2182 |
++#define ap_check_signals() |
2183 |
++ |
2184 |
++/* a clean exit from a child with proper cleanup */ |
2185 |
++static void clean_child_exit(int code) __attribute__ ((noreturn)); |
2186 |
++static void clean_child_exit(int code) |
2187 |
++{ |
2188 |
++ mpm_state = AP_MPMQ_STOPPING; |
2189 |
++ |
2190 |
++ if (pchild) { |
2191 |
++ apr_pool_destroy(pchild); |
2192 |
++ } |
2193 |
++ ap_mpm_pod_close(pod); |
2194 |
++ chdir_for_gprof(); |
2195 |
++ exit(code); |
2196 |
++} |
2197 |
++ |
2198 |
++static void accept_mutex_on(void) |
2199 |
++{ |
2200 |
++ apr_status_t rv = apr_proc_mutex_lock(accept_mutex); |
2201 |
++ if (rv != APR_SUCCESS) { |
2202 |
++ const char *msg = "couldn't grab the accept mutex"; |
2203 |
++ |
2204 |
++ if (ap_my_generation != |
2205 |
++ ap_scoreboard_image->global->running_generation) { |
2206 |
++ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, NULL, "%s", msg); |
2207 |
++ clean_child_exit(0); |
2208 |
++ } |
2209 |
++ else { |
2210 |
++ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "%s", msg); |
2211 |
++ exit(APEXIT_CHILDFATAL); |
2212 |
++ } |
2213 |
++ } |
2214 |
++} |
2215 |
++ |
2216 |
++static void accept_mutex_off(void) |
2217 |
++{ |
2218 |
++ apr_status_t rv = apr_proc_mutex_unlock(accept_mutex); |
2219 |
++ if (rv != APR_SUCCESS) { |
2220 |
++ const char *msg = "couldn't release the accept mutex"; |
2221 |
++ |
2222 |
++ if (ap_my_generation != |
2223 |
++ ap_scoreboard_image->global->running_generation) { |
2224 |
++ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, NULL, "%s", msg); |
2225 |
++ /* don't exit here... we have a connection to |
2226 |
++ * process, after which point we'll see that the |
2227 |
++ * generation changed and we'll exit cleanly |
2228 |
++ */ |
2229 |
++ } |
2230 |
++ else { |
2231 |
++ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "%s", msg); |
2232 |
++ exit(APEXIT_CHILDFATAL); |
2233 |
++ } |
2234 |
++ } |
2235 |
++} |
2236 |
++ |
2237 |
++/* On some architectures it's safe to do unserialized accept()s in the single |
2238 |
++ * Listen case. But it's never safe to do it in the case where there's |
2239 |
++ * multiple Listen statements. Define SINGLE_LISTEN_UNSERIALIZED_ACCEPT |
2240 |
++ * when it's safe in the single Listen case. |
2241 |
++ */ |
2242 |
++#ifdef SINGLE_LISTEN_UNSERIALIZED_ACCEPT |
2243 |
++#define SAFE_ACCEPT(stmt) do {if (ap_listeners->next) {stmt;}} while(0) |
2244 |
++#else |
2245 |
++#define SAFE_ACCEPT(stmt) do {stmt;} while(0) |
2246 |
++#endif |
2247 |
++ |
2248 |
++AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result) |
2249 |
++{ |
2250 |
++ switch(query_code){ |
2251 |
++ case AP_MPMQ_MAX_DAEMON_USED: |
2252 |
++ *result = ap_daemons_limit; |
2253 |
++ return APR_SUCCESS; |
2254 |
++ case AP_MPMQ_IS_THREADED: |
2255 |
++ *result = AP_MPMQ_NOT_SUPPORTED; |
2256 |
++ return APR_SUCCESS; |
2257 |
++ case AP_MPMQ_IS_FORKED: |
2258 |
++ *result = AP_MPMQ_DYNAMIC; |
2259 |
++ return APR_SUCCESS; |
2260 |
++ case AP_MPMQ_HARD_LIMIT_DAEMONS: |
2261 |
++ *result = server_limit; |
2262 |
++ return APR_SUCCESS; |
2263 |
++ case AP_MPMQ_HARD_LIMIT_THREADS: |
2264 |
++ *result = HARD_THREAD_LIMIT; |
2265 |
++ return APR_SUCCESS; |
2266 |
++ case AP_MPMQ_MAX_THREADS: |
2267 |
++ *result = 0; |
2268 |
++ return APR_SUCCESS; |
2269 |
++ case AP_MPMQ_MIN_SPARE_DAEMONS: |
2270 |
++ *result = ap_daemons_min_free; |
2271 |
++ return APR_SUCCESS; |
2272 |
++ case AP_MPMQ_MIN_SPARE_THREADS: |
2273 |
++ *result = 0; |
2274 |
++ return APR_SUCCESS; |
2275 |
++ case AP_MPMQ_MAX_SPARE_DAEMONS: |
2276 |
++ *result = ap_daemons_max_free; |
2277 |
++ return APR_SUCCESS; |
2278 |
++ case AP_MPMQ_MAX_SPARE_THREADS: |
2279 |
++ *result = 0; |
2280 |
++ return APR_SUCCESS; |
2281 |
++ case AP_MPMQ_MAX_REQUESTS_DAEMON: |
2282 |
++ *result = ap_max_requests_per_child; |
2283 |
++ return APR_SUCCESS; |
2284 |
++ case AP_MPMQ_MAX_DAEMONS: |
2285 |
++ *result = server_limit; |
2286 |
++ return APR_SUCCESS; |
2287 |
++ case AP_MPMQ_MPM_STATE: |
2288 |
++ *result = mpm_state; |
2289 |
++ return APR_SUCCESS; |
2290 |
++ } |
2291 |
++ return APR_ENOTIMPL; |
2292 |
++} |
2293 |
++ |
2294 |
++#if defined(NEED_WAITPID) |
2295 |
++/* |
2296 |
++ Systems without a real waitpid sometimes lose a child's exit while waiting |
2297 |
++ for another. Search through the scoreboard for missing children. |
2298 |
++ */ |
2299 |
++int reap_children(int *exitcode, apr_exit_why_e *status) |
2300 |
++{ |
2301 |
++ int n, pid; |
2302 |
++ |
2303 |
++ for (n = 0; n < ap_max_daemons_limit; ++n) { |
2304 |
++ if (ap_scoreboard_image->servers[n][0].status != SERVER_DEAD && |
2305 |
++ kill((pid = ap_scoreboard_image->parent[n].pid), 0) == -1) { |
2306 |
++ ap_update_child_status_from_indexes(n, 0, SERVER_DEAD, NULL); |
2307 |
++ /* just mark it as having a successful exit status */ |
2308 |
++ *status = APR_PROC_EXIT; |
2309 |
++ *exitcode = 0; |
2310 |
++ return(pid); |
2311 |
++ } |
2312 |
++ } |
2313 |
++ return 0; |
2314 |
++} |
2315 |
++#endif |
2316 |
++ |
2317 |
++/***************************************************************** |
2318 |
++ * Connection structures and accounting... |
2319 |
++ */ |
2320 |
++ |
2321 |
++static void just_die(int sig) |
2322 |
++{ |
2323 |
++ clean_child_exit(0); |
2324 |
++} |
2325 |
++ |
2326 |
++static void stop_listening(int sig) |
2327 |
++{ |
2328 |
++ if (active_connection) { |
2329 |
++ ap_close_listeners(); |
2330 |
++ listeners_closed = 1; |
2331 |
++ } |
2332 |
++ |
2333 |
++ /* For a graceful stop, we want the child to exit when done */ |
2334 |
++ die_now = 1; |
2335 |
++} |
2336 |
++ |
2337 |
++/* volatile just in case */ |
2338 |
++static int volatile shutdown_pending; |
2339 |
++static int volatile restart_pending; |
2340 |
++static int volatile is_graceful; |
2341 |
++ |
2342 |
++static void sig_term(int sig) |
2343 |
++{ |
2344 |
++ if (shutdown_pending == 1) { |
2345 |
++ /* Um, is this _probably_ not an error, if the user has |
2346 |
++ * tried to do a shutdown twice quickly, so we won't |
2347 |
++ * worry about reporting it. |
2348 |
++ */ |
2349 |
++ return; |
2350 |
++ } |
2351 |
++ shutdown_pending = 1; |
2352 |
++ is_graceful = (sig == AP_SIG_GRACEFUL_STOP); |
2353 |
++} |
2354 |
++ |
2355 |
++/* restart() is the signal handler for SIGHUP and AP_SIG_GRACEFUL |
2356 |
++ * in the parent process, unless running in ONE_PROCESS mode |
2357 |
++ */ |
2358 |
++static void restart(int sig) |
2359 |
++{ |
2360 |
++ if (restart_pending == 1) { |
2361 |
++ /* Probably not an error - don't bother reporting it */ |
2362 |
++ return; |
2363 |
++ } |
2364 |
++ restart_pending = 1; |
2365 |
++ is_graceful = (sig == AP_SIG_GRACEFUL); |
2366 |
++} |
2367 |
++ |
2368 |
++static void set_signals(void) |
2369 |
++{ |
2370 |
++#ifndef NO_USE_SIGACTION |
2371 |
++ struct sigaction sa; |
2372 |
++#endif |
2373 |
++ |
2374 |
++ if (!one_process) { |
2375 |
++ ap_fatal_signal_setup(ap_server_conf, pconf); |
2376 |
++ } |
2377 |
++ |
2378 |
++#ifndef NO_USE_SIGACTION |
2379 |
++ sigemptyset(&sa.sa_mask); |
2380 |
++ sa.sa_flags = 0; |
2381 |
++ |
2382 |
++ sa.sa_handler = sig_term; |
2383 |
++ if (sigaction(SIGTERM, &sa, NULL) < 0) |
2384 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)"); |
2385 |
++#ifdef AP_SIG_GRACEFUL_STOP |
2386 |
++ if (sigaction(AP_SIG_GRACEFUL_STOP, &sa, NULL) < 0) |
2387 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, |
2388 |
++ "sigaction(" AP_SIG_GRACEFUL_STOP_STRING ")"); |
2389 |
++#endif |
2390 |
++#ifdef SIGINT |
2391 |
++ if (sigaction(SIGINT, &sa, NULL) < 0) |
2392 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)"); |
2393 |
++#endif |
2394 |
++#ifdef SIGXCPU |
2395 |
++ sa.sa_handler = SIG_DFL; |
2396 |
++ if (sigaction(SIGXCPU, &sa, NULL) < 0) |
2397 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXCPU)"); |
2398 |
++#endif |
2399 |
++#ifdef SIGXFSZ |
2400 |
++ sa.sa_handler = SIG_DFL; |
2401 |
++ if (sigaction(SIGXFSZ, &sa, NULL) < 0) |
2402 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXFSZ)"); |
2403 |
++#endif |
2404 |
++#ifdef SIGPIPE |
2405 |
++ sa.sa_handler = SIG_IGN; |
2406 |
++ if (sigaction(SIGPIPE, &sa, NULL) < 0) |
2407 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)"); |
2408 |
++#endif |
2409 |
++ |
2410 |
++ /* we want to ignore HUPs and AP_SIG_GRACEFUL while we're busy |
2411 |
++ * processing one |
2412 |
++ */ |
2413 |
++ sigaddset(&sa.sa_mask, SIGHUP); |
2414 |
++ sigaddset(&sa.sa_mask, AP_SIG_GRACEFUL); |
2415 |
++ sa.sa_handler = restart; |
2416 |
++ if (sigaction(SIGHUP, &sa, NULL) < 0) |
2417 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)"); |
2418 |
++ if (sigaction(AP_SIG_GRACEFUL, &sa, NULL) < 0) |
2419 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(" AP_SIG_GRACEFUL_STRING ")"); |
2420 |
++#else |
2421 |
++ if (!one_process) { |
2422 |
++#ifdef SIGXCPU |
2423 |
++ apr_signal(SIGXCPU, SIG_DFL); |
2424 |
++#endif /* SIGXCPU */ |
2425 |
++#ifdef SIGXFSZ |
2426 |
++ apr_signal(SIGXFSZ, SIG_DFL); |
2427 |
++#endif /* SIGXFSZ */ |
2428 |
++ } |
2429 |
++ |
2430 |
++ apr_signal(SIGTERM, sig_term); |
2431 |
++#ifdef SIGHUP |
2432 |
++ apr_signal(SIGHUP, restart); |
2433 |
++#endif /* SIGHUP */ |
2434 |
++#ifdef AP_SIG_GRACEFUL |
2435 |
++ apr_signal(AP_SIG_GRACEFUL, restart); |
2436 |
++#endif /* AP_SIG_GRACEFUL */ |
2437 |
++#ifdef AP_SIG_GRACEFUL_STOP |
2438 |
++ apr_signal(AP_SIG_GRACEFUL_STOP, sig_term); |
2439 |
++#endif /* AP_SIG_GRACEFUL */ |
2440 |
++#ifdef SIGPIPE |
2441 |
++ apr_signal(SIGPIPE, SIG_IGN); |
2442 |
++#endif /* SIGPIPE */ |
2443 |
++ |
2444 |
++#endif |
2445 |
++} |
2446 |
++ |
2447 |
++/***************************************************************** |
2448 |
++ * Child process main loop. |
2449 |
++ * The following vars are static to avoid getting clobbered by longjmp(); |
2450 |
++ * they are really private to child_main. |
2451 |
++ */ |
2452 |
++ |
2453 |
++static int requests_this_child; |
2454 |
++static int num_listensocks = 0; |
2455 |
++ |
2456 |
++ |
2457 |
++int ap_graceful_stop_signalled(void) |
2458 |
++{ |
2459 |
++ /* not ever called anymore... */ |
2460 |
++ return 0; |
2461 |
++} |
2462 |
++ |
2463 |
++ |
2464 |
++static void child_main(int child_num_arg) |
2465 |
++{ |
2466 |
++ apr_pool_t *ptrans; |
2467 |
++ apr_allocator_t *allocator; |
2468 |
++ apr_status_t status; |
2469 |
++ int i; |
2470 |
++ ap_listen_rec *lr; |
2471 |
++ apr_pollset_t *pollset; |
2472 |
++ ap_sb_handle_t *sbh; |
2473 |
++ apr_bucket_alloc_t *bucket_alloc; |
2474 |
++ int last_poll_idx = 0; |
2475 |
++ |
2476 |
++#if HAVE_LIBCAP |
2477 |
++ cap_t caps; |
2478 |
++ cap_value_t suidcaps[] = { |
2479 |
++ CAP_SETUID, |
2480 |
++ CAP_SETGID, |
2481 |
++ CAP_SYS_NICE |
2482 |
++ }; |
2483 |
++#endif |
2484 |
++ |
2485 |
++ mpm_state = AP_MPMQ_STARTING; /* for benefit of any hooks that run as this |
2486 |
++ * child initializes |
2487 |
++ */ |
2488 |
++ |
2489 |
++ my_child_num = child_num_arg; |
2490 |
++ ap_my_pid = getpid(); |
2491 |
++ requests_this_child = 0; |
2492 |
++ |
2493 |
++ ap_fatal_signal_child_setup(ap_server_conf); |
2494 |
++ |
2495 |
++ /* Get a sub context for global allocations in this child, so that |
2496 |
++ * we can have cleanups occur when the child exits. |
2497 |
++ */ |
2498 |
++ apr_allocator_create(&allocator); |
2499 |
++ apr_allocator_max_free_set(allocator, ap_max_mem_free); |
2500 |
++ apr_pool_create_ex(&pchild, pconf, NULL, allocator); |
2501 |
++ apr_allocator_owner_set(allocator, pchild); |
2502 |
++ |
2503 |
++ apr_pool_create(&ptrans, pchild); |
2504 |
++ apr_pool_tag(ptrans, "transaction"); |
2505 |
++ |
2506 |
++ /* needs to be done before we switch UIDs so we have permissions */ |
2507 |
++ ap_reopen_scoreboard(pchild, NULL, 0); |
2508 |
++ status = apr_proc_mutex_child_init(&accept_mutex, ap_lock_fname, pchild); |
2509 |
++ if (status != APR_SUCCESS) { |
2510 |
++ ap_log_error(APLOG_MARK, APLOG_EMERG, status, ap_server_conf, |
2511 |
++ "Couldn't initialize cross-process lock in child " |
2512 |
++ "(%s) (%d)", ap_lock_fname, ap_accept_lock_mech); |
2513 |
++ clean_child_exit(APEXIT_CHILDFATAL); |
2514 |
++ } |
2515 |
++ |
2516 |
++ ap_run_child_init(pchild, ap_server_conf); |
2517 |
++ |
2518 |
++ ap_create_sb_handle(&sbh, pchild, my_child_num, 0); |
2519 |
++ |
2520 |
++ (void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL); |
2521 |
++ |
2522 |
++ /* Set up the pollfd array */ |
2523 |
++ /* ### check the status */ |
2524 |
++ (void) apr_pollset_create(&pollset, num_listensocks, pchild, 0); |
2525 |
++ |
2526 |
++ for (lr = ap_listeners, i = num_listensocks; i--; lr = lr->next) { |
2527 |
++ apr_pollfd_t pfd = { 0 }; |
2528 |
++ |
2529 |
++ pfd.desc_type = APR_POLL_SOCKET; |
2530 |
++ pfd.desc.s = lr->sd; |
2531 |
++ pfd.reqevents = APR_POLLIN; |
2532 |
++ pfd.client_data = lr; |
2533 |
++ |
2534 |
++ /* ### check the status */ |
2535 |
++ (void) apr_pollset_add(pollset, &pfd); |
2536 |
++ } |
2537 |
++ |
2538 |
++#if HAVE_LIBCAP |
2539 |
++ /* Drop as many privileges as we can. We'll still |
2540 |
++ * access files with uid=0, and we can setuid() to anything, but |
2541 |
++ * at least there's tons of other evilness (like loading kernel |
2542 |
++ * modules) we can't do directly. (The setuid() capability will |
2543 |
++ * go away automatically when we setuid() or exec() -- the former |
2544 |
++ * is likely to come first.) |
2545 |
++ */ |
2546 |
++ caps = cap_init(); |
2547 |
++ cap_clear(caps); |
2548 |
++ cap_set_flag(caps, CAP_PERMITTED, sizeof(suidcaps)/sizeof(cap_value_t), suidcaps, CAP_SET); |
2549 |
++ cap_set_flag(caps, CAP_EFFECTIVE, sizeof(suidcaps)/sizeof(cap_value_t), suidcaps, CAP_SET); |
2550 |
++ cap_set_proc(caps); |
2551 |
++ cap_free(caps); |
2552 |
++#endif |
2553 |
++ |
2554 |
++ mpm_state = AP_MPMQ_RUNNING; |
2555 |
++ |
2556 |
++ bucket_alloc = apr_bucket_alloc_create(pchild); |
2557 |
++ |
2558 |
++ while (!die_now) { |
2559 |
++ conn_rec *current_conn; |
2560 |
++ void *csd; |
2561 |
++ |
2562 |
++ /* |
2563 |
++ * (Re)initialize this child to a pre-connection state. |
2564 |
++ */ |
2565 |
++ |
2566 |
++ apr_pool_clear(ptrans); |
2567 |
++ |
2568 |
++ if ((ap_max_requests_per_child > 0 |
2569 |
++ && requests_this_child++ >= ap_max_requests_per_child)) { |
2570 |
++ clean_child_exit(0); |
2571 |
++ } |
2572 |
++ |
2573 |
++ (void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL); |
2574 |
++ |
2575 |
++ /* |
2576 |
++ * Wait for an acceptable connection to arrive. |
2577 |
++ */ |
2578 |
++ |
2579 |
++ /* Lock around "accept", if necessary */ |
2580 |
++ SAFE_ACCEPT(accept_mutex_on()); |
2581 |
++ |
2582 |
++ if (num_listensocks == 1) { |
2583 |
++ /* There is only one listener record, so refer to that one. */ |
2584 |
++ lr = ap_listeners; |
2585 |
++ } |
2586 |
++ else { |
2587 |
++ /* multiple listening sockets - need to poll */ |
2588 |
++ for (;;) { |
2589 |
++ apr_int32_t numdesc; |
2590 |
++ const apr_pollfd_t *pdesc; |
2591 |
++ |
2592 |
++ if (die_now) { |
2593 |
++ status = !APR_SUCCESS; |
2594 |
++ goto unlock; |
2595 |
++ } |
2596 |
++ |
2597 |
++ /* timeout == -1 == wait forever */ |
2598 |
++ status = apr_pollset_poll(pollset, -1, &numdesc, &pdesc); |
2599 |
++ if (status != APR_SUCCESS) { |
2600 |
++ if (APR_STATUS_IS_EINTR(status)) { |
2601 |
++ if (one_process && shutdown_pending) { |
2602 |
++ return; |
2603 |
++ } |
2604 |
++ continue; |
2605 |
++ } |
2606 |
++ /* Single Unix documents select as returning errnos |
2607 |
++ * EBADF, EINTR, and EINVAL... and in none of those |
2608 |
++ * cases does it make sense to continue. In fact |
2609 |
++ * on Linux 2.0.x we seem to end up with EFAULT |
2610 |
++ * occasionally, and we'd loop forever due to it. |
2611 |
++ */ |
2612 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, status, |
2613 |
++ ap_server_conf, "apr_pollset_poll: (listen)"); |
2614 |
++ clean_child_exit(1); |
2615 |
++ } |
2616 |
++ |
2617 |
++ /* We can always use pdesc[0], but sockets at position N |
2618 |
++ * could end up completely starved of attention in a very |
2619 |
++ * busy server. Therefore, we round-robin across the |
2620 |
++ * returned set of descriptors. While it is possible that |
2621 |
++ * the returned set of descriptors might flip around and |
2622 |
++ * continue to starve some sockets, we happen to know the |
2623 |
++ * internal pollset implementation retains ordering |
2624 |
++ * stability of the sockets. Thus, the round-robin should |
2625 |
++ * ensure that a socket will eventually be serviced. |
2626 |
++ */ |
2627 |
++ if (last_poll_idx >= numdesc) |
2628 |
++ last_poll_idx = 0; |
2629 |
++ |
2630 |
++ /* Grab a listener record from the client_data of the poll |
2631 |
++ * descriptor, and advance our saved index to round-robin |
2632 |
++ * the next fetch. |
2633 |
++ * |
2634 |
++ * ### hmm... this descriptor might have POLLERR rather |
2635 |
++ * ### than POLLIN |
2636 |
++ */ |
2637 |
++ lr = pdesc[last_poll_idx++].client_data; |
2638 |
++ goto got_fd; |
2639 |
++ } |
2640 |
++ } |
2641 |
++ got_fd: |
2642 |
++ /* if we accept() something we don't want to die, so we have to |
2643 |
++ * defer the exit |
2644 |
++ */ |
2645 |
++ if (!die_now) { |
2646 |
++ status = lr->accept_func(&csd, lr, ptrans); |
2647 |
++ } |
2648 |
++ else { |
2649 |
++ status = !APR_SUCCESS; |
2650 |
++ } |
2651 |
++ |
2652 |
++ unlock: |
2653 |
++ SAFE_ACCEPT(accept_mutex_off()); /* unlock after "accept" */ |
2654 |
++ |
2655 |
++ if (status == APR_EGENERAL) { |
2656 |
++ /* resource shortage or should-not-occur occured */ |
2657 |
++ clean_child_exit(1); |
2658 |
++ } |
2659 |
++ else if (status != APR_SUCCESS) { |
2660 |
++ continue; |
2661 |
++ } |
2662 |
++ |
2663 |
++ /* |
2664 |
++ * We now have a connection, so set it up with the appropriate |
2665 |
++ * socket options, file descriptors, and read/write buffers. |
2666 |
++ */ |
2667 |
++ |
2668 |
++ active_connection = 1; |
2669 |
++ if (die_now && !listeners_closed) { |
2670 |
++ ap_close_listeners(); |
2671 |
++ listeners_closed = 1; |
2672 |
++ } |
2673 |
++ |
2674 |
++ { |
2675 |
++ pid_t pid = fork(); |
2676 |
++ int status; |
2677 |
++ switch (pid) { |
2678 |
++ case -1: |
2679 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, "fork: Unable to fork new process"); |
2680 |
++ break; |
2681 |
++ case 0: /* child */ |
2682 |
++ apr_proc_mutex_child_init(&accept_mutex, ap_lock_fname, pchild); |
2683 |
++ current_conn = ap_run_create_connection(ptrans, ap_server_conf, csd, my_child_num, sbh, bucket_alloc); |
2684 |
++ if (current_conn) { |
2685 |
++ ap_process_connection(current_conn, csd); |
2686 |
++ ap_lingering_close(current_conn); |
2687 |
++ } |
2688 |
++ exit(0); |
2689 |
++ default: /* parent; just wait for child to be done */ |
2690 |
++ if (waitpid(pid, &status, 0) != pid || !WIFEXITED(status)) { |
2691 |
++ if (WIFSIGNALED(status)) { |
2692 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, "child died with signal %u", WTERMSIG(status)); |
2693 |
++ } else if (WEXITSTATUS(status) != 0) { |
2694 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, "child exited with non-zero exit status %u", WEXITSTATUS(status)); |
2695 |
++ } else { |
2696 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, "waitpid() failed"); |
2697 |
++ } |
2698 |
++ clean_child_exit(1); |
2699 |
++ } |
2700 |
++ break; |
2701 |
++ } |
2702 |
++ } |
2703 |
++ active_connection = 0; |
2704 |
++ |
2705 |
++ /* Check the pod and the generation number after processing a |
2706 |
++ * connection so that we'll go away if a graceful restart occurred |
2707 |
++ * while we were processing the connection or we are the lucky |
2708 |
++ * idle server process that gets to die. |
2709 |
++ */ |
2710 |
++ if (ap_mpm_pod_check(pod) == APR_SUCCESS) { /* selected as idle? */ |
2711 |
++ die_now = 1; |
2712 |
++ } |
2713 |
++ else if (ap_my_generation != |
2714 |
++ ap_scoreboard_image->global->running_generation) { /* restart? */ |
2715 |
++ /* yeah, this could be non-graceful restart, in which case the |
2716 |
++ * parent will kill us soon enough, but why bother checking? |
2717 |
++ */ |
2718 |
++ die_now = 1; |
2719 |
++ } |
2720 |
++ |
2721 |
++ /* if we have already setuid(), die (we can't be used anyhow) */ |
2722 |
++ if (getuid()) |
2723 |
++ die_now = 1; |
2724 |
++ } |
2725 |
++ clean_child_exit(0); |
2726 |
++} |
2727 |
++ |
2728 |
++ |
2729 |
++static int make_child(server_rec *s, int slot) |
2730 |
++{ |
2731 |
++ int pid; |
2732 |
++ |
2733 |
++ if (slot + 1 > ap_max_daemons_limit) { |
2734 |
++ ap_max_daemons_limit = slot + 1; |
2735 |
++ } |
2736 |
++ |
2737 |
++ if (one_process) { |
2738 |
++ apr_signal(SIGHUP, sig_term); |
2739 |
++ /* Don't catch AP_SIG_GRACEFUL in ONE_PROCESS mode :) */ |
2740 |
++ apr_signal(SIGINT, sig_term); |
2741 |
++#ifdef SIGQUIT |
2742 |
++ apr_signal(SIGQUIT, SIG_DFL); |
2743 |
++#endif |
2744 |
++ apr_signal(SIGTERM, sig_term); |
2745 |
++ child_main(slot); |
2746 |
++ return 0; |
2747 |
++ } |
2748 |
++ |
2749 |
++ (void) ap_update_child_status_from_indexes(slot, 0, SERVER_STARTING, |
2750 |
++ (request_rec *) NULL); |
2751 |
++ |
2752 |
++ |
2753 |
++#ifdef _OSD_POSIX |
2754 |
++ /* BS2000 requires a "special" version of fork() before a setuid() call */ |
2755 |
++ if ((pid = os_fork(unixd_config.user_name)) == -1) { |
2756 |
++#elif defined(TPF) |
2757 |
++ if ((pid = os_fork(s, slot)) == -1) { |
2758 |
++#else |
2759 |
++ if ((pid = fork()) == -1) { |
2760 |
++#endif |
2761 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, errno, s, "fork: Unable to fork new process"); |
2762 |
++ |
2763 |
++ /* fork didn't succeed. Fix the scoreboard or else |
2764 |
++ * it will say SERVER_STARTING forever and ever |
2765 |
++ */ |
2766 |
++ (void) ap_update_child_status_from_indexes(slot, 0, SERVER_DEAD, |
2767 |
++ (request_rec *) NULL); |
2768 |
++ |
2769 |
++ /* In case system resources are maxxed out, we don't want |
2770 |
++ * Apache running away with the CPU trying to fork over and |
2771 |
++ * over and over again. |
2772 |
++ */ |
2773 |
++ sleep(10); |
2774 |
++ |
2775 |
++ return -1; |
2776 |
++ } |
2777 |
++ |
2778 |
++ if (!pid) { |
2779 |
++#ifdef HAVE_BINDPROCESSOR |
2780 |
++ /* by default AIX binds to a single processor |
2781 |
++ * this bit unbinds children which will then bind to another cpu |
2782 |
++ */ |
2783 |
++ int status = bindprocessor(BINDPROCESS, (int)getpid(), |
2784 |
++ PROCESSOR_CLASS_ANY); |
2785 |
++ if (status != OK) { |
2786 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, |
2787 |
++ ap_server_conf, "processor unbind failed %d", status); |
2788 |
++ } |
2789 |
++#endif |
2790 |
++ RAISE_SIGSTOP(MAKE_CHILD); |
2791 |
++ AP_MONCONTROL(1); |
2792 |
++ /* Disable the parent's signal handlers and set up proper handling in |
2793 |
++ * the child. |
2794 |
++ */ |
2795 |
++ apr_signal(SIGHUP, just_die); |
2796 |
++ apr_signal(SIGTERM, just_die); |
2797 |
++ /* The child process just closes listeners on AP_SIG_GRACEFUL. |
2798 |
++ * The pod is used for signalling the graceful restart. |
2799 |
++ */ |
2800 |
++ apr_signal(AP_SIG_GRACEFUL, stop_listening); |
2801 |
++ child_main(slot); |
2802 |
++ } |
2803 |
++ |
2804 |
++ ap_scoreboard_image->parent[slot].pid = pid; |
2805 |
++ |
2806 |
++ return 0; |
2807 |
++} |
2808 |
++ |
2809 |
++ |
2810 |
++/* start up a bunch of children */ |
2811 |
++static void startup_children(int number_to_start) |
2812 |
++{ |
2813 |
++ int i; |
2814 |
++ |
2815 |
++ for (i = 0; number_to_start && i < ap_daemons_limit; ++i) { |
2816 |
++ if (ap_scoreboard_image->servers[i][0].status != SERVER_DEAD) { |
2817 |
++ continue; |
2818 |
++ } |
2819 |
++ if (make_child(ap_server_conf, i) < 0) { |
2820 |
++ break; |
2821 |
++ } |
2822 |
++ --number_to_start; |
2823 |
++ } |
2824 |
++} |
2825 |
++ |
2826 |
++ |
2827 |
++/* |
2828 |
++ * idle_spawn_rate is the number of children that will be spawned on the |
2829 |
++ * next maintenance cycle if there aren't enough idle servers. It is |
2830 |
++ * doubled up to MAX_SPAWN_RATE, and reset only when a cycle goes by |
2831 |
++ * without the need to spawn. |
2832 |
++ */ |
2833 |
++static int idle_spawn_rate = 1; |
2834 |
++#ifndef MAX_SPAWN_RATE |
2835 |
++#define MAX_SPAWN_RATE (32) |
2836 |
++#endif |
2837 |
++static int hold_off_on_exponential_spawning; |
2838 |
++ |
2839 |
++static void perform_idle_server_maintenance(apr_pool_t *p) |
2840 |
++{ |
2841 |
++ int i; |
2842 |
++ int to_kill; |
2843 |
++ int idle_count; |
2844 |
++ worker_score *ws; |
2845 |
++ int free_length; |
2846 |
++ int free_slots[MAX_SPAWN_RATE]; |
2847 |
++ int last_non_dead; |
2848 |
++ int total_non_dead; |
2849 |
++ |
2850 |
++ /* initialize the free_list */ |
2851 |
++ free_length = 0; |
2852 |
++ |
2853 |
++ to_kill = -1; |
2854 |
++ idle_count = 0; |
2855 |
++ last_non_dead = -1; |
2856 |
++ total_non_dead = 0; |
2857 |
++ |
2858 |
++ for (i = 0; i < ap_daemons_limit; ++i) { |
2859 |
++ int status; |
2860 |
++ |
2861 |
++ if (i >= ap_max_daemons_limit && free_length == idle_spawn_rate) |
2862 |
++ break; |
2863 |
++ ws = &ap_scoreboard_image->servers[i][0]; |
2864 |
++ status = ws->status; |
2865 |
++ if (status == SERVER_DEAD) { |
2866 |
++ /* try to keep children numbers as low as possible */ |
2867 |
++ if (free_length < idle_spawn_rate) { |
2868 |
++ free_slots[free_length] = i; |
2869 |
++ ++free_length; |
2870 |
++ } |
2871 |
++ } |
2872 |
++ else { |
2873 |
++ /* We consider a starting server as idle because we started it |
2874 |
++ * at least a cycle ago, and if it still hasn't finished starting |
2875 |
++ * then we're just going to swamp things worse by forking more. |
2876 |
++ * So we hopefully won't need to fork more if we count it. |
2877 |
++ * This depends on the ordering of SERVER_READY and SERVER_STARTING. |
2878 |
++ */ |
2879 |
++ if (status <= SERVER_READY) { |
2880 |
++ ++ idle_count; |
2881 |
++ /* always kill the highest numbered child if we have to... |
2882 |
++ * no really well thought out reason ... other than observing |
2883 |
++ * the server behaviour under linux where lower numbered children |
2884 |
++ * tend to service more hits (and hence are more likely to have |
2885 |
++ * their data in cpu caches). |
2886 |
++ */ |
2887 |
++ to_kill = i; |
2888 |
++ } |
2889 |
++ |
2890 |
++ ++total_non_dead; |
2891 |
++ last_non_dead = i; |
2892 |
++ } |
2893 |
++ } |
2894 |
++ ap_max_daemons_limit = last_non_dead + 1; |
2895 |
++ if (idle_count > ap_daemons_max_free) { |
2896 |
++ /* kill off one child... we use the pod because that'll cause it to |
2897 |
++ * shut down gracefully, in case it happened to pick up a request |
2898 |
++ * while we were counting |
2899 |
++ */ |
2900 |
++ ap_mpm_pod_signal(pod); |
2901 |
++ idle_spawn_rate = 1; |
2902 |
++ } |
2903 |
++ else if (idle_count < ap_daemons_min_free) { |
2904 |
++ /* terminate the free list */ |
2905 |
++ if (free_length == 0) { |
2906 |
++ /* only report this condition once */ |
2907 |
++ static int reported = 0; |
2908 |
++ |
2909 |
++ if (!reported) { |
2910 |
++ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, |
2911 |
++ "server reached MaxClients setting, consider" |
2912 |
++ " raising the MaxClients setting"); |
2913 |
++ reported = 1; |
2914 |
++ } |
2915 |
++ idle_spawn_rate = 1; |
2916 |
++ } |
2917 |
++ else { |
2918 |
++ if (idle_spawn_rate >= 8) { |
2919 |
++ ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, |
2920 |
++ "server seems busy, (you may need " |
2921 |
++ "to increase StartServers, or Min/MaxSpareServers), " |
2922 |
++ "spawning %d children, there are %d idle, and " |
2923 |
++ "%d total children", idle_spawn_rate, |
2924 |
++ idle_count, total_non_dead); |
2925 |
++ } |
2926 |
++ for (i = 0; i < free_length; ++i) { |
2927 |
++#ifdef TPF |
2928 |
++ if (make_child(ap_server_conf, free_slots[i]) == -1) { |
2929 |
++ if(free_length == 1) { |
2930 |
++ shutdown_pending = 1; |
2931 |
++ ap_log_error(APLOG_MARK, APLOG_EMERG, 0, ap_server_conf, |
2932 |
++ "No active child processes: shutting down"); |
2933 |
++ } |
2934 |
++ } |
2935 |
++#else |
2936 |
++ make_child(ap_server_conf, free_slots[i]); |
2937 |
++#endif /* TPF */ |
2938 |
++ } |
2939 |
++ /* the next time around we want to spawn twice as many if this |
2940 |
++ * wasn't good enough, but not if we've just done a graceful |
2941 |
++ */ |
2942 |
++ if (hold_off_on_exponential_spawning) { |
2943 |
++ --hold_off_on_exponential_spawning; |
2944 |
++ } |
2945 |
++ else if (idle_spawn_rate < MAX_SPAWN_RATE) { |
2946 |
++ idle_spawn_rate *= 2; |
2947 |
++ } |
2948 |
++ } |
2949 |
++ } |
2950 |
++ else { |
2951 |
++ idle_spawn_rate = 1; |
2952 |
++ } |
2953 |
++} |
2954 |
++ |
2955 |
++/***************************************************************** |
2956 |
++ * Executive routines. |
2957 |
++ */ |
2958 |
++ |
2959 |
++int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s) |
2960 |
++{ |
2961 |
++ int index; |
2962 |
++ int remaining_children_to_start; |
2963 |
++ apr_status_t rv; |
2964 |
++ |
2965 |
++ ap_log_pid(pconf, ap_pid_fname); |
2966 |
++ |
2967 |
++ first_server_limit = server_limit; |
2968 |
++ if (changed_limit_at_restart) { |
2969 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, |
2970 |
++ "WARNING: Attempt to change ServerLimit " |
2971 |
++ "ignored during restart"); |
2972 |
++ changed_limit_at_restart = 0; |
2973 |
++ } |
2974 |
++ |
2975 |
++ /* Initialize cross-process accept lock */ |
2976 |
++ ap_lock_fname = apr_psprintf(_pconf, "%s.%" APR_PID_T_FMT, |
2977 |
++ ap_server_root_relative(_pconf, ap_lock_fname), |
2978 |
++ ap_my_pid); |
2979 |
++ |
2980 |
++ rv = apr_proc_mutex_create(&accept_mutex, ap_lock_fname, |
2981 |
++ ap_accept_lock_mech, _pconf); |
2982 |
++ if (rv != APR_SUCCESS) { |
2983 |
++ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, |
2984 |
++ "Couldn't create accept lock (%s) (%d)", |
2985 |
++ ap_lock_fname, ap_accept_lock_mech); |
2986 |
++ mpm_state = AP_MPMQ_STOPPING; |
2987 |
++ return 1; |
2988 |
++ } |
2989 |
++ |
2990 |
++#if APR_USE_SYSVSEM_SERIALIZE |
2991 |
++ if (ap_accept_lock_mech == APR_LOCK_DEFAULT || |
2992 |
++ ap_accept_lock_mech == APR_LOCK_SYSVSEM) { |
2993 |
++#else |
2994 |
++ if (ap_accept_lock_mech == APR_LOCK_SYSVSEM) { |
2995 |
++#endif |
2996 |
++ rv = unixd_set_proc_mutex_perms(accept_mutex); |
2997 |
++ if (rv != APR_SUCCESS) { |
2998 |
++ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, |
2999 |
++ "Couldn't set permissions on cross-process lock; " |
3000 |
++ "check User and Group directives"); |
3001 |
++ mpm_state = AP_MPMQ_STOPPING; |
3002 |
++ return 1; |
3003 |
++ } |
3004 |
++ } |
3005 |
++ |
3006 |
++ if (!is_graceful) { |
3007 |
++ if (ap_run_pre_mpm(s->process->pool, SB_SHARED) != OK) { |
3008 |
++ mpm_state = AP_MPMQ_STOPPING; |
3009 |
++ return 1; |
3010 |
++ } |
3011 |
++ /* fix the generation number in the global score; we just got a new, |
3012 |
++ * cleared scoreboard |
3013 |
++ */ |
3014 |
++ ap_scoreboard_image->global->running_generation = ap_my_generation; |
3015 |
++ } |
3016 |
++ |
3017 |
++ set_signals(); |
3018 |
++ |
3019 |
++ if (one_process) { |
3020 |
++ AP_MONCONTROL(1); |
3021 |
++ make_child(ap_server_conf, 0); |
3022 |
++ } |
3023 |
++ else { |
3024 |
++ if (ap_daemons_max_free < ap_daemons_min_free + 1) /* Don't thrash... */ |
3025 |
++ ap_daemons_max_free = ap_daemons_min_free + 1; |
3026 |
++ |
3027 |
++ /* If we're doing a graceful_restart then we're going to see a lot |
3028 |
++ * of children exiting immediately when we get into the main loop |
3029 |
++ * below (because we just sent them AP_SIG_GRACEFUL). This happens pretty |
3030 |
++ * rapidly... and for each one that exits we'll start a new one until |
3031 |
++ * we reach at least daemons_min_free. But we may be permitted to |
3032 |
++ * start more than that, so we'll just keep track of how many we're |
3033 |
++ * supposed to start up without the 1 second penalty between each fork. |
3034 |
++ */ |
3035 |
++ remaining_children_to_start = ap_daemons_to_start; |
3036 |
++ if (remaining_children_to_start > ap_daemons_limit) { |
3037 |
++ remaining_children_to_start = ap_daemons_limit; |
3038 |
++ } |
3039 |
++ if (!is_graceful) { |
3040 |
++ startup_children(remaining_children_to_start); |
3041 |
++ remaining_children_to_start = 0; |
3042 |
++ } |
3043 |
++ else { |
3044 |
++ /* give the system some time to recover before kicking into |
3045 |
++ * exponential mode |
3046 |
++ */ |
3047 |
++ hold_off_on_exponential_spawning = 10; |
3048 |
++ } |
3049 |
++ |
3050 |
++ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
3051 |
++ "%s configured -- resuming normal operations", |
3052 |
++ ap_get_server_description()); |
3053 |
++ ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, |
3054 |
++ "Server built: %s", ap_get_server_built()); |
3055 |
++#ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH |
3056 |
++ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, |
3057 |
++ "AcceptMutex: %s (default: %s)", |
3058 |
++ apr_proc_mutex_name(accept_mutex), |
3059 |
++ apr_proc_mutex_defname()); |
3060 |
++#endif |
3061 |
++ restart_pending = shutdown_pending = 0; |
3062 |
++ |
3063 |
++ mpm_state = AP_MPMQ_RUNNING; |
3064 |
++ |
3065 |
++ while (!restart_pending && !shutdown_pending) { |
3066 |
++ int child_slot; |
3067 |
++ apr_exit_why_e exitwhy; |
3068 |
++ int status, processed_status; |
3069 |
++ /* this is a memory leak, but I'll fix it later. */ |
3070 |
++ apr_proc_t pid; |
3071 |
++ |
3072 |
++ ap_wait_or_timeout(&exitwhy, &status, &pid, pconf); |
3073 |
++ |
3074 |
++ /* XXX: if it takes longer than 1 second for all our children |
3075 |
++ * to start up and get into IDLE state then we may spawn an |
3076 |
++ * extra child |
3077 |
++ */ |
3078 |
++ if (pid.pid != -1) { |
3079 |
++ processed_status = ap_process_child_status(&pid, exitwhy, status); |
3080 |
++ if (processed_status == APEXIT_CHILDFATAL) { |
3081 |
++ mpm_state = AP_MPMQ_STOPPING; |
3082 |
++ return 1; |
3083 |
++ } |
3084 |
++ |
3085 |
++ /* non-fatal death... note that it's gone in the scoreboard. */ |
3086 |
++ child_slot = find_child_by_pid(&pid); |
3087 |
++ if (child_slot >= 0) { |
3088 |
++ (void) ap_update_child_status_from_indexes(child_slot, 0, SERVER_DEAD, |
3089 |
++ (request_rec *) NULL); |
3090 |
++ if (processed_status == APEXIT_CHILDSICK) { |
3091 |
++ /* child detected a resource shortage (E[NM]FILE, ENOBUFS, etc) |
3092 |
++ * cut the fork rate to the minimum |
3093 |
++ */ |
3094 |
++ idle_spawn_rate = 1; |
3095 |
++ } |
3096 |
++ else if (remaining_children_to_start |
3097 |
++ && child_slot < ap_daemons_limit) { |
3098 |
++ /* we're still doing a 1-for-1 replacement of dead |
3099 |
++ * children with new children |
3100 |
++ */ |
3101 |
++ make_child(ap_server_conf, child_slot); |
3102 |
++ --remaining_children_to_start; |
3103 |
++ } |
3104 |
++#if APR_HAS_OTHER_CHILD |
3105 |
++ } |
3106 |
++ else if (apr_proc_other_child_alert(&pid, APR_OC_REASON_DEATH, status) == APR_SUCCESS) { |
3107 |
++ /* handled */ |
3108 |
++#endif |
3109 |
++ } |
3110 |
++ else if (is_graceful) { |
3111 |
++ /* Great, we've probably just lost a slot in the |
3112 |
++ * scoreboard. Somehow we don't know about this |
3113 |
++ * child. |
3114 |
++ */ |
3115 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, |
3116 |
++ 0, ap_server_conf, |
3117 |
++ "long lost child came home! (pid %ld)", (long)pid.pid); |
3118 |
++ } |
3119 |
++ /* Don't perform idle maintenance when a child dies, |
3120 |
++ * only do it when there's a timeout. Remember only a |
3121 |
++ * finite number of children can die, and it's pretty |
3122 |
++ * pathological for a lot to die suddenly. |
3123 |
++ */ |
3124 |
++ continue; |
3125 |
++ } |
3126 |
++ else if (remaining_children_to_start) { |
3127 |
++ /* we hit a 1 second timeout in which none of the previous |
3128 |
++ * generation of children needed to be reaped... so assume |
3129 |
++ * they're all done, and pick up the slack if any is left. |
3130 |
++ */ |
3131 |
++ startup_children(remaining_children_to_start); |
3132 |
++ remaining_children_to_start = 0; |
3133 |
++ /* In any event we really shouldn't do the code below because |
3134 |
++ * few of the servers we just started are in the IDLE state |
3135 |
++ * yet, so we'd mistakenly create an extra server. |
3136 |
++ */ |
3137 |
++ continue; |
3138 |
++ } |
3139 |
++ |
3140 |
++ perform_idle_server_maintenance(pconf); |
3141 |
++#ifdef TPF |
3142 |
++ shutdown_pending = os_check_server(tpf_server_name); |
3143 |
++ ap_check_signals(); |
3144 |
++ sleep(1); |
3145 |
++#endif /*TPF */ |
3146 |
++ } |
3147 |
++ } /* one_process */ |
3148 |
++ |
3149 |
++ mpm_state = AP_MPMQ_STOPPING; |
3150 |
++ |
3151 |
++ if (shutdown_pending && !is_graceful) { |
3152 |
++ /* Time to shut down: |
3153 |
++ * Kill child processes, tell them to call child_exit, etc... |
3154 |
++ */ |
3155 |
++ if (unixd_killpg(getpgrp(), SIGTERM) < 0) { |
3156 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGTERM"); |
3157 |
++ } |
3158 |
++ ap_reclaim_child_processes(1); /* Start with SIGTERM */ |
3159 |
++ |
3160 |
++ /* cleanup pid file on normal shutdown */ |
3161 |
++ { |
3162 |
++ const char *pidfile = NULL; |
3163 |
++ pidfile = ap_server_root_relative (pconf, ap_pid_fname); |
3164 |
++ if ( pidfile != NULL && unlink(pidfile) == 0) |
3165 |
++ ap_log_error(APLOG_MARK, APLOG_INFO, |
3166 |
++ 0, ap_server_conf, |
3167 |
++ "removed PID file %s (pid=%ld)", |
3168 |
++ pidfile, (long)getpid()); |
3169 |
++ } |
3170 |
++ |
3171 |
++ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
3172 |
++ "caught SIGTERM, shutting down"); |
3173 |
++ |
3174 |
++ return 1; |
3175 |
++ } else if (shutdown_pending) { |
3176 |
++ /* Time to perform a graceful shut down: |
3177 |
++ * Reap the inactive children, and ask the active ones |
3178 |
++ * to close their listeners, then wait until they are |
3179 |
++ * all done to exit. |
3180 |
++ */ |
3181 |
++ int active_children; |
3182 |
++ apr_time_t cutoff = 0; |
3183 |
++ |
3184 |
++ /* Stop listening */ |
3185 |
++ ap_close_listeners(); |
3186 |
++ |
3187 |
++ /* kill off the idle ones */ |
3188 |
++ ap_mpm_pod_killpg(pod, ap_max_daemons_limit); |
3189 |
++ |
3190 |
++ /* Send SIGUSR1 to the active children */ |
3191 |
++ active_children = 0; |
3192 |
++ for (index = 0; index < ap_daemons_limit; ++index) { |
3193 |
++ if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) { |
3194 |
++ /* Ask each child to close its listeners. */ |
3195 |
++ ap_mpm_safe_kill(MPM_CHILD_PID(index), AP_SIG_GRACEFUL); |
3196 |
++ active_children++; |
3197 |
++ } |
3198 |
++ } |
3199 |
++ |
3200 |
++ /* Allow each child which actually finished to exit */ |
3201 |
++ ap_relieve_child_processes(); |
3202 |
++ |
3203 |
++ /* cleanup pid file */ |
3204 |
++ { |
3205 |
++ const char *pidfile = NULL; |
3206 |
++ pidfile = ap_server_root_relative (pconf, ap_pid_fname); |
3207 |
++ if ( pidfile != NULL && unlink(pidfile) == 0) |
3208 |
++ ap_log_error(APLOG_MARK, APLOG_INFO, |
3209 |
++ 0, ap_server_conf, |
3210 |
++ "removed PID file %s (pid=%ld)", |
3211 |
++ pidfile, (long)getpid()); |
3212 |
++ } |
3213 |
++ |
3214 |
++ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
3215 |
++ "caught " AP_SIG_GRACEFUL_STOP_STRING ", shutting down gracefully"); |
3216 |
++ |
3217 |
++ if (ap_graceful_shutdown_timeout) { |
3218 |
++ cutoff = apr_time_now() + |
3219 |
++ apr_time_from_sec(ap_graceful_shutdown_timeout); |
3220 |
++ } |
3221 |
++ |
3222 |
++ /* Don't really exit until each child has finished */ |
3223 |
++ shutdown_pending = 0; |
3224 |
++ do { |
3225 |
++ /* Pause for a second */ |
3226 |
++ sleep(1); |
3227 |
++ |
3228 |
++ /* Relieve any children which have now exited */ |
3229 |
++ ap_relieve_child_processes(); |
3230 |
++ |
3231 |
++ active_children = 0; |
3232 |
++ for (index = 0; index < ap_daemons_limit; ++index) { |
3233 |
++ if (ap_mpm_safe_kill(MPM_CHILD_PID(index), 0) == APR_SUCCESS) { |
3234 |
++ active_children = 1; |
3235 |
++ /* Having just one child is enough to stay around */ |
3236 |
++ break; |
3237 |
++ } |
3238 |
++ } |
3239 |
++ } while (!shutdown_pending && active_children && |
3240 |
++ (!ap_graceful_shutdown_timeout || apr_time_now() < cutoff)); |
3241 |
++ |
3242 |
++ /* We might be here because we received SIGTERM, either |
3243 |
++ * way, try and make sure that all of our processes are |
3244 |
++ * really dead. |
3245 |
++ */ |
3246 |
++ unixd_killpg(getpgrp(), SIGTERM); |
3247 |
++ |
3248 |
++ return 1; |
3249 |
++ } |
3250 |
++ |
3251 |
++ /* we've been told to restart */ |
3252 |
++ apr_signal(SIGHUP, SIG_IGN); |
3253 |
++ apr_signal(AP_SIG_GRACEFUL, SIG_IGN); |
3254 |
++ if (one_process) { |
3255 |
++ /* not worth thinking about */ |
3256 |
++ return 1; |
3257 |
++ } |
3258 |
++ |
3259 |
++ /* advance to the next generation */ |
3260 |
++ /* XXX: we really need to make sure this new generation number isn't in |
3261 |
++ * use by any of the children. |
3262 |
++ */ |
3263 |
++ ++ap_my_generation; |
3264 |
++ ap_scoreboard_image->global->running_generation = ap_my_generation; |
3265 |
++ |
3266 |
++ if (is_graceful) { |
3267 |
++ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
3268 |
++ "Graceful restart requested, doing restart"); |
3269 |
++ |
3270 |
++ /* kill off the idle ones */ |
3271 |
++ ap_mpm_pod_killpg(pod, ap_max_daemons_limit); |
3272 |
++ |
3273 |
++ /* This is mostly for debugging... so that we know what is still |
3274 |
++ * gracefully dealing with existing request. This will break |
3275 |
++ * in a very nasty way if we ever have the scoreboard totally |
3276 |
++ * file-based (no shared memory) |
3277 |
++ */ |
3278 |
++ for (index = 0; index < ap_daemons_limit; ++index) { |
3279 |
++ if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) { |
3280 |
++ ap_scoreboard_image->servers[index][0].status = SERVER_GRACEFUL; |
3281 |
++ /* Ask each child to close its listeners. |
3282 |
++ * |
3283 |
++ * NOTE: we use the scoreboard, because if we send SIGUSR1 |
3284 |
++ * to every process in the group, this may include CGI's, |
3285 |
++ * piped loggers, etc. They almost certainly won't handle |
3286 |
++ * it gracefully. |
3287 |
++ */ |
3288 |
++ ap_mpm_safe_kill(ap_scoreboard_image->parent[index].pid, AP_SIG_GRACEFUL); |
3289 |
++ } |
3290 |
++ } |
3291 |
++ } |
3292 |
++ else { |
3293 |
++ /* Kill 'em off */ |
3294 |
++ if (unixd_killpg(getpgrp(), SIGHUP) < 0) { |
3295 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGHUP"); |
3296 |
++ } |
3297 |
++ ap_reclaim_child_processes(0); /* Not when just starting up */ |
3298 |
++ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
3299 |
++ "SIGHUP received. Attempting to restart"); |
3300 |
++ } |
3301 |
++ |
3302 |
++ return 0; |
3303 |
++} |
3304 |
++ |
3305 |
++/* This really should be a post_config hook, but the error log is already |
3306 |
++ * redirected by that point, so we need to do this in the open_logs phase. |
3307 |
++ */ |
3308 |
++static int itk_open_logs(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) |
3309 |
++{ |
3310 |
++ apr_status_t rv; |
3311 |
++ |
3312 |
++ pconf = p; |
3313 |
++ ap_server_conf = s; |
3314 |
++ |
3315 |
++ if ((num_listensocks = ap_setup_listeners(ap_server_conf)) < 1) { |
3316 |
++ ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_STARTUP, 0, |
3317 |
++ NULL, "no listening sockets available, shutting down"); |
3318 |
++ return DONE; |
3319 |
++ } |
3320 |
++ |
3321 |
++ if ((rv = ap_mpm_pod_open(pconf, &pod))) { |
3322 |
++ ap_log_error(APLOG_MARK, APLOG_CRIT|APLOG_STARTUP, rv, NULL, |
3323 |
++ "Could not open pipe-of-death."); |
3324 |
++ return DONE; |
3325 |
++ } |
3326 |
++ return OK; |
3327 |
++} |
3328 |
++ |
3329 |
++static int itk_pre_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp) |
3330 |
++{ |
3331 |
++ static int restart_num = 0; |
3332 |
++ int no_detach, debug, foreground; |
3333 |
++ apr_status_t rv; |
3334 |
++ |
3335 |
++ mpm_state = AP_MPMQ_STARTING; |
3336 |
++ |
3337 |
++ debug = ap_exists_config_define("DEBUG"); |
3338 |
++ |
3339 |
++ if (debug) { |
3340 |
++ foreground = one_process = 1; |
3341 |
++ no_detach = 0; |
3342 |
++ } |
3343 |
++ else |
3344 |
++ { |
3345 |
++ no_detach = ap_exists_config_define("NO_DETACH"); |
3346 |
++ one_process = ap_exists_config_define("ONE_PROCESS"); |
3347 |
++ foreground = ap_exists_config_define("FOREGROUND"); |
3348 |
++ } |
3349 |
++ |
3350 |
++ /* sigh, want this only the second time around */ |
3351 |
++ if (restart_num++ == 1) { |
3352 |
++ is_graceful = 0; |
3353 |
++ |
3354 |
++ if (!one_process && !foreground) { |
3355 |
++ rv = apr_proc_detach(no_detach ? APR_PROC_DETACH_FOREGROUND |
3356 |
++ : APR_PROC_DETACH_DAEMONIZE); |
3357 |
++ if (rv != APR_SUCCESS) { |
3358 |
++ ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL, |
3359 |
++ "apr_proc_detach failed"); |
3360 |
++ return HTTP_INTERNAL_SERVER_ERROR; |
3361 |
++ } |
3362 |
++ } |
3363 |
++ |
3364 |
++ parent_pid = ap_my_pid = getpid(); |
3365 |
++ } |
3366 |
++ |
3367 |
++ unixd_pre_config(ptemp); |
3368 |
++ ap_listen_pre_config(); |
3369 |
++ ap_daemons_to_start = DEFAULT_START_DAEMON; |
3370 |
++ ap_daemons_min_free = DEFAULT_MIN_FREE_DAEMON; |
3371 |
++ ap_daemons_max_free = DEFAULT_MAX_FREE_DAEMON; |
3372 |
++ ap_daemons_limit = server_limit; |
3373 |
++ ap_pid_fname = DEFAULT_PIDLOG; |
3374 |
++ ap_lock_fname = DEFAULT_LOCKFILE; |
3375 |
++ ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD; |
3376 |
++ ap_extended_status = 0; |
3377 |
++#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE |
3378 |
++ ap_max_mem_free = APR_ALLOCATOR_MAX_FREE_UNLIMITED; |
3379 |
++#endif |
3380 |
++ |
3381 |
++ apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir)); |
3382 |
++ |
3383 |
++ return OK; |
3384 |
++} |
3385 |
++ |
3386 |
++static int itk_post_read(request_rec *r) |
3387 |
++{ |
3388 |
++ uid_t wanted_uid; |
3389 |
++ gid_t wanted_gid; |
3390 |
++ const char *wanted_username; |
3391 |
++ int err = 0; |
3392 |
++ |
3393 |
++ itk_server_conf *sconf = |
3394 |
++ (itk_server_conf *) ap_get_module_config(r->server->module_config, &mpm_itk_module); |
3395 |
++ |
3396 |
++ /* Enforce MaxClientsVhost. */ |
3397 |
++ if (sconf->max_clients_vhost > 0) { |
3398 |
++ int i, num_other_servers = 0; |
3399 |
++ for (i = 0; i < ap_daemons_limit; ++i) { |
3400 |
++ worker_score *ws = &ap_scoreboard_image->servers[i][0]; |
3401 |
++ if (ws->status >= SERVER_BUSY_READ && strncmp(ws->vhost, r->server->server_hostname, 31) == 0) |
3402 |
++ ++num_other_servers; |
3403 |
++ } |
3404 |
++ |
3405 |
++ if (num_other_servers > sconf->max_clients_vhost) { |
3406 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
3407 |
++ "MaxClientsVhost reached for %s, refusing client.", |
3408 |
++ r->server->server_hostname); |
3409 |
++ return HTTP_SERVICE_UNAVAILABLE; |
3410 |
++ } |
3411 |
++ } |
3412 |
++ |
3413 |
++ strncpy(ap_scoreboard_image->servers[my_child_num][0].vhost, r->server->server_hostname, 31); |
3414 |
++ ap_scoreboard_image->servers[my_child_num][0].vhost[31] = 0; |
3415 |
++ |
3416 |
++ if (setpriority(PRIO_PROCESS, 0, sconf->nice_value)) { |
3417 |
++ _DBG("setpriority(): %s", strerror(errno)); |
3418 |
++ err = 1; |
3419 |
++ } |
3420 |
++ |
3421 |
++ wanted_uid = sconf->uid; |
3422 |
++ wanted_gid = sconf->gid; |
3423 |
++ wanted_username = sconf->username; |
3424 |
++ |
3425 |
++ if (wanted_uid == -1 || wanted_gid == -1) { |
3426 |
++ wanted_uid = unixd_config.user_id; |
3427 |
++ wanted_gid = unixd_config.group_id; |
3428 |
++ wanted_username = unixd_config.user_name; |
3429 |
++ } |
3430 |
++ |
3431 |
++ if (!err && wanted_uid != -1 && wanted_gid != -1 && (getuid() != wanted_uid || getgid() != wanted_gid)) { |
3432 |
++ if (setgid(wanted_gid)) { |
3433 |
++ _DBG("setgid(): %s", strerror(errno)); |
3434 |
++ err = 1; |
3435 |
++ } else if (initgroups(wanted_username, wanted_gid)) { |
3436 |
++ _DBG("initgroups(): %s", strerror(errno)); |
3437 |
++ err = 1; |
3438 |
++ } else if (setuid(wanted_uid)) { |
3439 |
++ _DBG("setuid(): %s", strerror(errno)); |
3440 |
++ err = 1; |
3441 |
++ } |
3442 |
++ } |
3443 |
++ |
3444 |
++ /* |
3445 |
++ * Most likely a case of switching uid/gid within a persistent |
3446 |
++ * connection; the RFCs allow us to just close the connection |
3447 |
++ * at anytime, so we excercise our right. :-) |
3448 |
++ */ |
3449 |
++ if (err) { |
3450 |
++ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
3451 |
++ "Couldn't set uid/gid/priority, closing connection."); |
3452 |
++ ap_lingering_close(r->connection); |
3453 |
++ exit(0); |
3454 |
++ } |
3455 |
++ return OK; |
3456 |
++} |
3457 |
++ |
3458 |
++static void itk_hooks(apr_pool_t *p) |
3459 |
++{ |
3460 |
++ /* The itk open_logs phase must run before the core's, or stderr |
3461 |
++ * will be redirected to a file, and the messages won't print to the |
3462 |
++ * console. |
3463 |
++ */ |
3464 |
++ static const char *const aszSucc[] = {"core.c", NULL}; |
3465 |
++ |
3466 |
++#ifdef AUX3 |
3467 |
++ (void) set42sig(); |
3468 |
++#endif |
3469 |
++ |
3470 |
++ ap_hook_open_logs(itk_open_logs, NULL, aszSucc, APR_HOOK_MIDDLE); |
3471 |
++ /* we need to set the MPM state before other pre-config hooks use MPM query |
3472 |
++ * to retrieve it, so register as REALLY_FIRST |
3473 |
++ */ |
3474 |
++ ap_hook_pre_config(itk_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST); |
3475 |
++ |
3476 |
++ /* set the uid as fast as possible */ |
3477 |
++ ap_hook_post_read_request(itk_post_read, NULL, NULL, APR_HOOK_REALLY_FIRST); |
3478 |
++} |
3479 |
++ |
3480 |
++static const char *set_daemons_to_start(cmd_parms *cmd, void *dummy, const char *arg) |
3481 |
++{ |
3482 |
++ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
3483 |
++ if (err != NULL) { |
3484 |
++ return err; |
3485 |
++ } |
3486 |
++ |
3487 |
++ ap_daemons_to_start = atoi(arg); |
3488 |
++ return NULL; |
3489 |
++} |
3490 |
++ |
3491 |
++static const char *set_min_free_servers(cmd_parms *cmd, void *dummy, const char *arg) |
3492 |
++{ |
3493 |
++ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
3494 |
++ if (err != NULL) { |
3495 |
++ return err; |
3496 |
++ } |
3497 |
++ |
3498 |
++ ap_daemons_min_free = atoi(arg); |
3499 |
++ if (ap_daemons_min_free <= 0) { |
3500 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3501 |
++ "WARNING: detected MinSpareServers set to non-positive."); |
3502 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3503 |
++ "Resetting to 1 to avoid almost certain Apache failure."); |
3504 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3505 |
++ "Please read the documentation."); |
3506 |
++ ap_daemons_min_free = 1; |
3507 |
++ } |
3508 |
++ |
3509 |
++ return NULL; |
3510 |
++} |
3511 |
++ |
3512 |
++static const char *set_max_free_servers(cmd_parms *cmd, void *dummy, const char *arg) |
3513 |
++{ |
3514 |
++ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
3515 |
++ if (err != NULL) { |
3516 |
++ return err; |
3517 |
++ } |
3518 |
++ |
3519 |
++ ap_daemons_max_free = atoi(arg); |
3520 |
++ return NULL; |
3521 |
++} |
3522 |
++ |
3523 |
++static const char *set_max_clients (cmd_parms *cmd, void *dummy, const char *arg) |
3524 |
++{ |
3525 |
++ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
3526 |
++ if (err != NULL) { |
3527 |
++ return err; |
3528 |
++ } |
3529 |
++ |
3530 |
++ ap_daemons_limit = atoi(arg); |
3531 |
++ if (ap_daemons_limit > server_limit) { |
3532 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3533 |
++ "WARNING: MaxClients of %d exceeds ServerLimit value " |
3534 |
++ "of %d servers,", ap_daemons_limit, server_limit); |
3535 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3536 |
++ " lowering MaxClients to %d. To increase, please " |
3537 |
++ "see the ServerLimit", server_limit); |
3538 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3539 |
++ " directive."); |
3540 |
++ ap_daemons_limit = server_limit; |
3541 |
++ } |
3542 |
++ else if (ap_daemons_limit < 1) { |
3543 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3544 |
++ "WARNING: Require MaxClients > 0, setting to 1"); |
3545 |
++ ap_daemons_limit = 1; |
3546 |
++ } |
3547 |
++ return NULL; |
3548 |
++} |
3549 |
++ |
3550 |
++static const char *set_server_limit (cmd_parms *cmd, void *dummy, const char *arg) |
3551 |
++{ |
3552 |
++ int tmp_server_limit; |
3553 |
++ |
3554 |
++ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
3555 |
++ if (err != NULL) { |
3556 |
++ return err; |
3557 |
++ } |
3558 |
++ |
3559 |
++ tmp_server_limit = atoi(arg); |
3560 |
++ /* you cannot change ServerLimit across a restart; ignore |
3561 |
++ * any such attempts |
3562 |
++ */ |
3563 |
++ if (first_server_limit && |
3564 |
++ tmp_server_limit != server_limit) { |
3565 |
++ /* how do we log a message? the error log is a bit bucket at this |
3566 |
++ * point; we'll just have to set a flag so that ap_mpm_run() |
3567 |
++ * logs a warning later |
3568 |
++ */ |
3569 |
++ changed_limit_at_restart = 1; |
3570 |
++ return NULL; |
3571 |
++ } |
3572 |
++ server_limit = tmp_server_limit; |
3573 |
++ |
3574 |
++ if (server_limit > MAX_SERVER_LIMIT) { |
3575 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3576 |
++ "WARNING: ServerLimit of %d exceeds compile time limit " |
3577 |
++ "of %d servers,", server_limit, MAX_SERVER_LIMIT); |
3578 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3579 |
++ " lowering ServerLimit to %d.", MAX_SERVER_LIMIT); |
3580 |
++ server_limit = MAX_SERVER_LIMIT; |
3581 |
++ } |
3582 |
++ else if (server_limit < 1) { |
3583 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3584 |
++ "WARNING: Require ServerLimit > 0, setting to 1"); |
3585 |
++ server_limit = 1; |
3586 |
++ } |
3587 |
++ return NULL; |
3588 |
++} |
3589 |
++ |
3590 |
++static const char *assign_user_id (cmd_parms *cmd, void *dummy, const char *user_name, const char *group_name) |
3591 |
++{ |
3592 |
++ itk_server_conf *sconf = |
3593 |
++ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
3594 |
++ sconf->username = strdup(user_name); |
3595 |
++ sconf->uid = ap_uname2id(user_name); |
3596 |
++ sconf->gid = ap_gname2id(group_name); |
3597 |
++ return NULL; |
3598 |
++} |
3599 |
++ |
3600 |
++static const char *set_max_clients_vhost (cmd_parms *cmd, void *dummy, const char *arg) |
3601 |
++{ |
3602 |
++ itk_server_conf *sconf = |
3603 |
++ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
3604 |
++ sconf->max_clients_vhost = atoi(arg); |
3605 |
++ return NULL; |
3606 |
++} |
3607 |
++ |
3608 |
++static const char *set_nice_value (cmd_parms *cmd, void *dummy, const char *arg) |
3609 |
++{ |
3610 |
++ itk_server_conf *sconf = |
3611 |
++ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
3612 |
++ int nice_value = atoi(arg); |
3613 |
++ |
3614 |
++ if (nice_value < -20) { |
3615 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3616 |
++ "WARNING: NiceValue of %d is below -20, increasing NiceValue to -20.", |
3617 |
++ nice_value); |
3618 |
++ nice_value = -20; |
3619 |
++ } |
3620 |
++ else if (nice_value > 19) { |
3621 |
++ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
3622 |
++ "WARNING: NiceValue of %d is above 19, lowering NiceValue to 19.", |
3623 |
++ nice_value); |
3624 |
++ nice_value = 19; |
3625 |
++ } |
3626 |
++ sconf->nice_value = nice_value; |
3627 |
++ return NULL; |
3628 |
++} |
3629 |
++ |
3630 |
++static const command_rec itk_cmds[] = { |
3631 |
++UNIX_DAEMON_COMMANDS, |
3632 |
++LISTEN_COMMANDS, |
3633 |
++AP_INIT_TAKE1("StartServers", set_daemons_to_start, NULL, RSRC_CONF, |
3634 |
++ "Number of child processes launched at server startup"), |
3635 |
++AP_INIT_TAKE1("MinSpareServers", set_min_free_servers, NULL, RSRC_CONF, |
3636 |
++ "Minimum number of idle children, to handle request spikes"), |
3637 |
++AP_INIT_TAKE1("MaxSpareServers", set_max_free_servers, NULL, RSRC_CONF, |
3638 |
++ "Maximum number of idle children"), |
3639 |
++AP_INIT_TAKE1("MaxClients", set_max_clients, NULL, RSRC_CONF, |
3640 |
++ "Maximum number of children alive at the same time"), |
3641 |
++AP_INIT_TAKE1("ServerLimit", set_server_limit, NULL, RSRC_CONF, |
3642 |
++ "Maximum value of MaxClients for this run of Apache"), |
3643 |
++AP_INIT_TAKE2("AssignUserID", assign_user_id, NULL, RSRC_CONF, |
3644 |
++ "Tie a virtual host to a specific child process."), |
3645 |
++AP_INIT_TAKE1("MaxClientsVHost", set_max_clients_vhost, NULL, RSRC_CONF, |
3646 |
++ "Maximum number of children alive at the same time for this virtual host."), |
3647 |
++AP_INIT_TAKE1("NiceValue", set_nice_value, NULL, RSRC_CONF, |
3648 |
++ "Set nice value for the given vhost, from -20 (highest priority) to 19 (lowest priority)."), |
3649 |
++AP_GRACEFUL_SHUTDOWN_TIMEOUT_COMMAND, |
3650 |
++{ NULL } |
3651 |
++}; |
3652 |
++ |
3653 |
++/* == allocate a private server config structure == */ |
3654 |
++static void *itk_create_config(apr_pool_t *p, server_rec *s) |
3655 |
++{ |
3656 |
++ itk_server_conf *c = (itk_server_conf *) |
3657 |
++ apr_pcalloc(p, sizeof(itk_server_conf)); |
3658 |
++ c->uid = c->gid = -1; |
3659 |
++ c->max_clients_vhost = -1; |
3660 |
++ c->nice_value = 0; |
3661 |
++ return c; |
3662 |
++} |
3663 |
++ |
3664 |
++module AP_MODULE_DECLARE_DATA mpm_itk_module = { |
3665 |
++ MPM20_MODULE_STUFF, |
3666 |
++ ap_mpm_rewrite_args, /* hook to run before apache parses args */ |
3667 |
++ NULL, /* create per-directory config structure */ |
3668 |
++ NULL, /* merge per-directory config structures */ |
3669 |
++ itk_create_config, /* create per-server config structure */ |
3670 |
++ NULL, /* merge per-server config structures */ |
3671 |
++ itk_cmds, /* command apr_table_t */ |
3672 |
++ itk_hooks, /* register hooks */ |
3673 |
++}; |
3674 |
+unchanged: |
3675 |
+--- apache2.2/server/mpm/experimental/itk/mpm.h |
3676 |
++++ apache2.2/server/mpm/experimental/itk/mpm.h 2007-01-29 21:22:33.000000000 +0100 |
3677 |
+@@ -0,0 +1,65 @@ |
3678 |
++/* Licensed to the Apache Software Foundation (ASF) under one or more |
3679 |
++ * contributor license agreements. See the NOTICE file distributed with |
3680 |
++ * this work for additional information regarding copyright ownership. |
3681 |
++ * The ASF licenses this file to You under the Apache License, Version 2.0 |
3682 |
++ * (the "License"); you may not use this file except in compliance with |
3683 |
++ * the License. You may obtain a copy of the License at |
3684 |
++ * |
3685 |
++ * http://www.apache.org/licenses/LICENSE-2.0 |
3686 |
++ * |
3687 |
++ * Unless required by applicable law or agreed to in writing, software |
3688 |
++ * distributed under the License is distributed on an "AS IS" BASIS, |
3689 |
++ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
3690 |
++ * See the License for the specific language governing permissions and |
3691 |
++ * limitations under the License. |
3692 |
++ * |
3693 |
++ * Portions copyright 2005-2007 Steinar H. Gunderson <sgunderson@×××××××.com>. |
3694 |
++ * Licensed under the same terms as the rest of Apache. |
3695 |
++ */ |
3696 |
++ |
3697 |
++/** |
3698 |
++ * @file itk/mpm.h |
3699 |
++ * @brief ITK MPM (setuid per-vhost, no threads) |
3700 |
++ * |
3701 |
++ * @defgroup APACHE_MPM_ITK Apache ITK |
3702 |
++ * @ingroup APACHE_MPM APACHE_OS_UNIX |
3703 |
++ * @{ |
3704 |
++ */ |
3705 |
++ |
3706 |
++#include "httpd.h" |
3707 |
++#include "mpm_default.h" |
3708 |
++#include "scoreboard.h" |
3709 |
++#include "unixd.h" |
3710 |
++ |
3711 |
++#ifndef APACHE_MPM_ITK_H |
3712 |
++#define APACHE_MPM_ITK_H |
3713 |
++ |
3714 |
++#define ITK_MPM |
3715 |
++ |
3716 |
++#define MPM_NAME "ITK" |
3717 |
++ |
3718 |
++#define AP_MPM_WANT_RECLAIM_CHILD_PROCESSES |
3719 |
++#define AP_MPM_WANT_WAIT_OR_TIMEOUT |
3720 |
++#define AP_MPM_WANT_PROCESS_CHILD_STATUS |
3721 |
++#define AP_MPM_WANT_SET_PIDFILE |
3722 |
++#define AP_MPM_WANT_SET_SCOREBOARD |
3723 |
++#define AP_MPM_WANT_SET_LOCKFILE |
3724 |
++#define AP_MPM_WANT_SET_MAX_REQUESTS |
3725 |
++#define AP_MPM_WANT_SET_COREDUMPDIR |
3726 |
++#define AP_MPM_WANT_SET_ACCEPT_LOCK_MECH |
3727 |
++#define AP_MPM_WANT_SIGNAL_SERVER |
3728 |
++#define AP_MPM_WANT_SET_MAX_MEM_FREE |
3729 |
++#define AP_MPM_WANT_FATAL_SIGNAL_HANDLER |
3730 |
++#define AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN |
3731 |
++#define AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK |
3732 |
++ |
3733 |
++#define AP_MPM_USES_POD 1 |
3734 |
++#define MPM_CHILD_PID(i) (ap_scoreboard_image->parent[i].pid) |
3735 |
++#define MPM_NOTE_CHILD_KILLED(i) (MPM_CHILD_PID(i) = 0) |
3736 |
++#define MPM_ACCEPT_FUNC unixd_accept |
3737 |
++ |
3738 |
++extern int ap_threads_per_child; |
3739 |
++extern int ap_max_daemons_limit; |
3740 |
++extern server_rec *ap_server_conf; |
3741 |
++#endif /* APACHE_MPM_ITK_H */ |
3742 |
++/** @} */ |
3743 |
+unchanged: |
3744 |
+--- apache2.2/server/mpm/experimental/itk/mpm_default.h |
3745 |
++++ apache2.2/server/mpm/experimental/itk/mpm_default.h 2007-01-29 21:22:09.000000000 +0100 |
3746 |
+@@ -0,0 +1,77 @@ |
3747 |
++/* Licensed to the Apache Software Foundation (ASF) under one or more |
3748 |
++ * contributor license agreements. See the NOTICE file distributed with |
3749 |
++ * this work for additional information regarding copyright ownership. |
3750 |
++ * The ASF licenses this file to You under the Apache License, Version 2.0 |
3751 |
++ * (the "License"); you may not use this file except in compliance with |
3752 |
++ * the License. You may obtain a copy of the License at |
3753 |
++ * |
3754 |
++ * http://www.apache.org/licenses/LICENSE-2.0 |
3755 |
++ * |
3756 |
++ * Unless required by applicable law or agreed to in writing, software |
3757 |
++ * distributed under the License is distributed on an "AS IS" BASIS, |
3758 |
++ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
3759 |
++ * See the License for the specific language governing permissions and |
3760 |
++ * limitations under the License. |
3761 |
++ * |
3762 |
++ * Portions copyright 2005-2007 Steinar H. Gunderson <sgunderson@×××××××.com>. |
3763 |
++ * Licensed under the same terms as the rest of Apache. |
3764 |
++ */ |
3765 |
++ |
3766 |
++/** |
3767 |
++ * @file itk/mpm_default.h |
3768 |
++ * @brief ITK MPM defaults |
3769 |
++ * |
3770 |
++ * @addtogroup APACHE_MPM_ITK |
3771 |
++ * @{ |
3772 |
++ */ |
3773 |
++ |
3774 |
++#ifndef APACHE_MPM_DEFAULT_H |
3775 |
++#define APACHE_MPM_DEFAULT_H |
3776 |
++ |
3777 |
++/* Number of servers to spawn off by default --- also, if fewer than |
3778 |
++ * this free when the caretaker checks, it will spawn more. |
3779 |
++ */ |
3780 |
++#ifndef DEFAULT_START_DAEMON |
3781 |
++#define DEFAULT_START_DAEMON 5 |
3782 |
++#endif |
3783 |
++ |
3784 |
++/* Maximum number of *free* server processes --- more than this, and |
3785 |
++ * they will die off. |
3786 |
++ */ |
3787 |
++ |
3788 |
++#ifndef DEFAULT_MAX_FREE_DAEMON |
3789 |
++#define DEFAULT_MAX_FREE_DAEMON 10 |
3790 |
++#endif |
3791 |
++ |
3792 |
++/* Minimum --- fewer than this, and more will be created */ |
3793 |
++ |
3794 |
++#ifndef DEFAULT_MIN_FREE_DAEMON |
3795 |
++#define DEFAULT_MIN_FREE_DAEMON 5 |
3796 |
++#endif |
3797 |
++ |
3798 |
++/* File used for accept locking, when we use a file */ |
3799 |
++#ifndef DEFAULT_LOCKFILE |
3800 |
++#define DEFAULT_LOCKFILE DEFAULT_REL_RUNTIMEDIR "/accept.lock" |
3801 |
++#endif |
3802 |
++ |
3803 |
++/* Where the main/parent process's pid is logged */ |
3804 |
++#ifndef DEFAULT_PIDLOG |
3805 |
++#define DEFAULT_PIDLOG DEFAULT_REL_RUNTIMEDIR "/httpd.pid" |
3806 |
++#endif |
3807 |
++ |
3808 |
++/* |
3809 |
++ * Interval, in microseconds, between scoreboard maintenance. |
3810 |
++ */ |
3811 |
++#ifndef SCOREBOARD_MAINTENANCE_INTERVAL |
3812 |
++#define SCOREBOARD_MAINTENANCE_INTERVAL 1000000 |
3813 |
++#endif |
3814 |
++ |
3815 |
++/* Number of requests to try to handle in a single process. If <= 0, |
3816 |
++ * the children don't die off. |
3817 |
++ */ |
3818 |
++#ifndef DEFAULT_MAX_REQUESTS_PER_CHILD |
3819 |
++#define DEFAULT_MAX_REQUESTS_PER_CHILD 10000 |
3820 |
++#endif |
3821 |
++ |
3822 |
++#endif /* AP_MPM_DEFAULT_H */ |
3823 |
++/** @} */ |
3824 |
+unchanged: |
3825 |
+--- apache2.2/server/mpm/config.m4 2007-01-29 21:30:35.000000000 +0100 |
3826 |
++++ apache2.2/server/mpm/config.m4 |
3827 |
+@@ -1,7 +1,7 @@ |
3828 |
+ AC_MSG_CHECKING(which MPM to use) |
3829 |
+ AC_ARG_WITH(mpm, |
3830 |
+ APACHE_HELP_STRING(--with-mpm=MPM,Choose the process model for Apache to use. |
3831 |
+- MPM={beos|event|worker|prefork|mpmt_os2|peruser}),[ |
3832 |
++ MPM={beos|event|worker|prefork|mpmt_os2|peruser|itk}),[ |
3833 |
+ APACHE_MPM=$withval |
3834 |
+ ],[ |
3835 |
+ if test "x$APACHE_MPM" = "x"; then |
3836 |
+@@ -23,7 +23,7 @@ |
3837 |
+ |
3838 |
+ ap_mpm_is_experimental () |
3839 |
+ { |
3840 |
+- if test "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "peruser" ; then |
3841 |
++ if test "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "peruser" -o "$apache_cv_mpm" = "itk" ; then |
3842 |
+ return 0 |
3843 |
+ else |
3844 |
+ return 1 |
3845 |
+@@ -66,6 +66,11 @@ |
3846 |
+ else |
3847 |
+ MPM_SUBDIR_NAME=$MPM_NAME |
3848 |
+ fi |
3849 |
++ |
3850 |
++if test "$apache_cv_mpm" = "itk" ; then |
3851 |
++ AC_CHECK_LIB(cap, cap_init) |
3852 |
++fi |
3853 |
++ |
3854 |
+ MPM_DIR=server/mpm/$MPM_SUBDIR_NAME |
3855 |
+ MPM_LIB=$MPM_DIR/lib${MPM_NAME}.la |
3856 |
+ |