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* thread.cc (__cygwin_lock_lock): Don't bother locking when there is only one

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known thread.
(__cygwin_lock_unlock): Ditto for unlocking.
This commit is contained in:
Christopher Faylor
2004-06-27 19:16:48 +00:00
parent dce592cd8c
commit 76a3f968a5
2 changed files with 20 additions and 2 deletions
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6
winsup/cygwin/ChangeLog
View File

@@ -1,3 +1,9 @@
2004-06-27 Christopher Faylor <me@cgf.cx>
* thread.cc (__cygwin_lock_lock): Don't bother locking when there is
only one known thread.
(__cygwin_lock_unlock): Ditto for unlocking.
2004-06-23 Tomas Ukkonen <tomas.ukkonen@iki.fi> 2004-06-23 Tomas Ukkonen <tomas.ukkonen@iki.fi>
* fhandler_proc.cc (format_proc_cpuinfo): Test CPU vendor and print * fhandler_proc.cc (format_proc_cpuinfo): Test CPU vendor and print

16
winsup/cygwin/thread.cc
View File

@@ -79,7 +79,13 @@ __cygwin_lock_fini (_LOCK_T *lock)
extern "C" void extern "C" void
__cygwin_lock_lock (_LOCK_T *lock) __cygwin_lock_lock (_LOCK_T *lock)
{ {
pthread_mutex_lock ((pthread_mutex_t*) lock); if (MT_INTERFACE->threadcount <= 1)
paranoid_printf ("threadcount %d. not locking", MT_INTERFACE->threadcount);
else
{
paranoid_printf ("threadcount %d. locking", MT_INTERFACE->threadcount);
pthread_mutex_lock ((pthread_mutex_t*) lock);
}
} }
extern "C" int extern "C" int
@@ -92,7 +98,13 @@ __cygwin_lock_trylock (_LOCK_T *lock)
extern "C" void extern "C" void
__cygwin_lock_unlock (_LOCK_T *lock) __cygwin_lock_unlock (_LOCK_T *lock)
{ {
pthread_mutex_unlock ((pthread_mutex_t*) lock); if (MT_INTERFACE->threadcount <= 1)
paranoid_printf ("threadcount %d. not unlocking", MT_INTERFACE->threadcount);
else
{
pthread_mutex_unlock ((pthread_mutex_t*) lock);
paranoid_printf ("threadcount %d. unlocked", MT_INTERFACE->threadcount);
}
} }
inline LPCRITICAL_SECTION inline LPCRITICAL_SECTION