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authorJohannes Sixt <j6t@kdbg.org>2010-04-08 09:15:39 +0200
committerJunio C Hamano <gitster@pobox.com>2010-04-08 23:06:39 -0700
commit937491944292fa3303b565b9bd8914c6b644ab13 (patch)
treead926dcdc9a88268dcea2f5207ae2959690c18af /thread-utils.h
parenta9a746364bd26d333c7229c6f7e851b507cd284a (diff)
downloadgit-937491944292fa3303b565b9bd8914c6b644ab13.tar.gz
git-937491944292fa3303b565b9bd8914c6b644ab13.tar.xz
Thread-safe xmalloc and xrealloc needs a recursive mutex
The mutex used to protect object access (read_mutex) may need to be acquired recursively. Introduce init_recursive_mutex() helper function in thread-utils.c that constructs a mutex with the PHREAD_MUTEX_RECURSIVE attribute. pthread_mutex_init() emulation on Win32 is already recursive as it is implemented on top of the CRITICAL_SECTION type, which is recursive. http://msdn.microsoft.com/en-us/library/ms682530%28VS.85%29.aspx Add do-nothing compatibility wrappers for pthread_mutexattr* functions. Initial-version-by: Fredrik Kuivinen <frekui@gmail.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'thread-utils.h')
-rw-r--r--thread-utils.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/thread-utils.h b/thread-utils.h
index cce4b77bd..1727a0333 100644
--- a/thread-utils.h
+++ b/thread-utils.h
@@ -2,5 +2,6 @@
#define THREAD_COMPAT_H
extern int online_cpus(void);
+extern int init_recursive_mutex(pthread_mutex_t*);
#endif /* THREAD_COMPAT_H */