From 937491944292fa3303b565b9bd8914c6b644ab13 Mon Sep 17 00:00:00 2001 From: Johannes Sixt Date: Thu, 8 Apr 2010 09:15:39 +0200 Subject: 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 Signed-off-by: Johannes Sixt Signed-off-by: Junio C Hamano --- thread-utils.h | 1 + 1 file changed, 1 insertion(+) (limited to 'thread-utils.h') diff --git a/thread-utils.h b/thread-utils.h index cce4b77bd6..1727a03333 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 */ -- cgit v1.2.3