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add docu about missing recursive mutex support when using pthreads

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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@690 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
syntheticpp 2006-07-03 08:43:35 +00:00
parent 5121014d22
commit c6a110f676
1 changed files with 10 additions and 8 deletions
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18
include/loki/Threads.h
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@ -46,7 +46,12 @@
/// \par Supported platfroms: /// \par Supported platfroms:
/// ///
/// - Windows (windows.h) /// - Windows (windows.h)
/// - POSIX (pthread.h) /// - POSIX (pthread.h):
/// No recursive mutex support with pthread.
/// This means: calling Lock() on a Loki::Mutex twice from the
/// same thread before unlocking the mutex deadlocks the system.
/// To avoid this redesign your synchronization. See also:
/// http://sourceforge.net/tracker/index.php?func=detail&aid=1516182&group_id=29557&atid=396647
#include <cassert> #include <cassert>
@ -107,14 +112,8 @@
#define LOKI_THREADS_MUTEX(x) pthread_mutex_t (x); #define LOKI_THREADS_MUTEX(x) pthread_mutex_t (x);
// use reentrance support // no recursive mutex support
#if defined(PTHREAD_MUTEX_RECURSIVE)
#define LOKI_THREADS_MUTEX_INIT(x) ::pthread_mutex_init(x, PTHREAD_MUTEX_RECURSIVE)
#elif defined(PTHREAD_MUTEX_RECURSIVE_NP)
#define LOKI_THREADS_MUTEX_INIT(x) ::pthread_mutex_init(x, PTHREAD_MUTEX_RECURSIVE_NP)
#else
#define LOKI_THREADS_MUTEX_INIT(x) ::pthread_mutex_init(x, 0) #define LOKI_THREADS_MUTEX_INIT(x) ::pthread_mutex_init(x, 0)
#endif
#define LOKI_THREADS_MUTEX_DELETE(x) ::pthread_mutex_destroy (x) #define LOKI_THREADS_MUTEX_DELETE(x) ::pthread_mutex_destroy (x)
#define LOKI_THREADS_MUTEX_LOCK(x) ::pthread_mutex_lock (x) #define LOKI_THREADS_MUTEX_LOCK(x) ::pthread_mutex_lock (x)
@ -417,6 +416,9 @@ namespace Loki
#endif #endif
// $Log$ // $Log$
// Revision 1.32 2006/07/03 08:43:35 syntheticpp
// add docu about missing recursive mutex support when using pthreads
//
// Revision 1.31 2006/07/01 10:30:03 syntheticpp // Revision 1.31 2006/07/01 10:30:03 syntheticpp
// add reentrance support to the pthread mutex, thx to Shen Lei // add reentrance support to the pthread mutex, thx to Shen Lei
// //