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Author: zmedico |
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Date: 2008-06-25 04:24:31 +0000 (Wed, 25 Jun 2008) |
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New Revision: 10775 |
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|
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Modified: |
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main/trunk/pym/_emerge/__init__.py |
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Log: |
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Bug #229069 - Before deleting the depgraph, break references pointing |
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to the depgraph from Package instances in the merge list. This helps |
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reduce the heap size a lot. |
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|
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|
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Modified: main/trunk/pym/_emerge/__init__.py |
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=================================================================== |
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--- main/trunk/pym/_emerge/__init__.py 2008-06-24 22:55:17 UTC (rev 10774) |
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+++ main/trunk/pym/_emerge/__init__.py 2008-06-25 04:24:31 UTC (rev 10775) |
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@@ -1774,6 +1774,15 @@ |
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self._cp_map = {} |
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self._cpv_map = {} |
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|
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+ def clear(self): |
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+ """ |
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+ Remove all packages. |
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+ """ |
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+ if self._cpv_map: |
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+ self._clear_cache() |
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+ self._cp_map.clear() |
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+ self._cpv_map.clear() |
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+ |
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def copy(self): |
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obj = PackageVirtualDbapi(self.settings) |
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obj._match_cache = self._match_cache.copy() |
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@@ -3840,6 +3849,29 @@ |
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retlist.reverse() |
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return retlist |
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|
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+ def break_refs(self, mergelist): |
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+ """ |
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+ Take a mergelist like that returned from self.altlist() and |
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+ break any references that lead back to the depgraph. This is |
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+ useful if you want to hold references to packages without |
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+ also holding the depgraph on the heap. |
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+ """ |
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+ for node in mergelist: |
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+ if not isinstance(node, Package): |
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+ continue |
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+ |
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+ # The visible packages cache has fullfilled it's purpose |
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+ # and it's no longer needed, so free the memory. |
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+ node.root_config.visible_pkgs.clear() |
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+ |
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+ if isinstance(node.root_config.trees["vartree"], FakeVartree): |
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+ # The FakeVartree references the _package_cache which |
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+ # references the depgraph. So that Package instances don't |
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+ # hold the depgraph and FakeVartree on the heap, replace |
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+ # the FakeVartree reference with the real vartree. |
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+ node.root_config.trees["vartree"] = \ |
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+ self._trees_orig[node.root]["vartree"] |
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+ |
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def _resolve_conflicts(self): |
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if not self._complete_graph(): |
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raise self._unknown_internal_error() |
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@@ -8750,6 +8782,7 @@ |
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mtimedb.filename = None |
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time.sleep(3) # allow the parent to have first fetch |
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mymergelist = mydepgraph.altlist() |
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+ mydepgraph.break_refs(mymergelist) |
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del mydepgraph |
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clear_caches(trees) |
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|
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@@ -8793,6 +8826,7 @@ |
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|
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pkglist = mydepgraph.altlist() |
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mydepgraph.saveNomergeFavorites() |
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+ mydepgraph.break_refs(pkglist) |
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del mydepgraph |
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clear_caches(trees) |
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|
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|
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-- |
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