diff options
| author | Olivier Goffart <ogoffart@woboq.com> | 2015-11-06 12:19:19 +0100 |
|---|---|---|
| committer | Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com> | 2016-01-04 08:40:18 +0000 |
| commit | c7ab816af110ea08809e1aabd8bf1e08967c6d53 (patch) | |
| tree | 6db83c7a48d51dd3c376c3c80425efc4a2131661 /src/corelib/thread/qmutex_p.h | |
| parent | e0c8316e1782a34bf2c67ed1e6901d750cf30fb3 (diff) | |
qmutex_unix: use a semaphore when available
It makes tst_QMutex::contendedQMutex with no msleep 8 times faster
Change-Id: Ic300e7618b4467e4e08b30f0213bd23c06d4d90a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/thread/qmutex_p.h')
| -rw-r--r-- | src/corelib/thread/qmutex_p.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/corelib/thread/qmutex_p.h b/src/corelib/thread/qmutex_p.h index 3ca742b194..191edda6d1 100644 --- a/src/corelib/thread/qmutex_p.h +++ b/src/corelib/thread/qmutex_p.h @@ -55,11 +55,14 @@ #if defined(Q_OS_MAC) # include <mach/semaphore.h> -#endif - -#if defined(Q_OS_LINUX) && !defined(QT_LINUXBASE) +#elif defined(Q_OS_LINUX) && !defined(QT_LINUXBASE) // use Linux mutexes everywhere except for LSB builds # define QT_LINUX_FUTEX +#elif defined(Q_OS_UNIX) +# if _POSIX_VERSION-0 >= 200112L || _XOPEN_VERSION-0 >= 600 +# include <semaphore.h> +# define QT_UNIX_SEMAPHORE +# endif #endif struct timespec; @@ -120,6 +123,8 @@ public: //platform specific stuff #if defined(Q_OS_MAC) semaphore_t mach_semaphore; +#elif defined(QT_UNIX_SEMAPHORE) + sem_t semaphore; #elif defined(Q_OS_UNIX) bool wakeup; pthread_mutex_t mutex; |