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Diffstat (limited to 'source4/lib/talloc/talloc_guide.txt')
| -rw-r--r-- | source4/lib/talloc/talloc_guide.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/source4/lib/talloc/talloc_guide.txt b/source4/lib/talloc/talloc_guide.txt index 83f524862f..8b252e4ab9 100644 --- a/source4/lib/talloc/talloc_guide.txt +++ b/source4/lib/talloc/talloc_guide.txt @@ -56,6 +56,22 @@ talloc API The following is a complete guide to the talloc API. Read it all at least twice. +Multi-threading +--------------- + +talloc itself does not deal with threads. It is thread-safe (assuming +the underlying "malloc" is), as long as each thread uses different +memory contexts. +If two threads uses the same context then they need to synchronize in +order to be safe. In particular: +- when using talloc_enable_leak_report(), giving directly NULL as a +parent context implicitly refers to a hidden "null context" global +variable, so this should not be used in a multi-threaded environment +without proper synchronization ; +- the context returned by talloc_autofree_context() is also global so +shouldn't be used by several threads simultaneously without +synchronization. + =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- (type *)talloc(const void *context, type); |