diff options
Diffstat (limited to 'mesalib/src/mapi/u_thread.h')
| -rw-r--r-- | mesalib/src/mapi/u_thread.h | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/mesalib/src/mapi/u_thread.h b/mesalib/src/mapi/u_thread.h index ba5d98ea9..57c3b076a 100644 --- a/mesalib/src/mapi/u_thread.h +++ b/mesalib/src/mapi/u_thread.h @@ -57,9 +57,9 @@ /* * Error messages */ -#define INIT_TSD_ERROR "_glthread_: failed to allocate key for thread specific data" -#define GET_TSD_ERROR "_glthread_: failed to get thread specific data" -#define SET_TSD_ERROR "_glthread_: thread failed to set thread specific data" +#define INIT_TSD_ERROR "Mesa: failed to allocate key for thread specific data" +#define GET_TSD_ERROR "Mesa: failed to get thread specific data" +#define SET_TSD_ERROR "Mesa: thread failed to set thread specific data" /* @@ -79,20 +79,28 @@ struct u_tsd { unsigned initMagic; }; -typedef mtx_t u_mutex; - -#define u_mutex_declare_static(name) \ - static u_mutex name = _MTX_INITIALIZER_NP - -#define u_mutex_init(name) mtx_init(&(name), mtx_plain) -#define u_mutex_destroy(name) mtx_destroy(&(name)) -#define u_mutex_lock(name) (void) mtx_lock(&(name)) -#define u_mutex_unlock(name) (void) mtx_unlock(&(name)) static INLINE unsigned long u_thread_self(void) { + /* + * XXX: Callers of u_thread_self assume it is a lightweight function, + * returning a numeric value. But unfortunately C11's thrd_current() gives + * no such guarantees. In fact, it's pretty hard to have a compliant + * implementation of thrd_current() on Windows with such characteristics. + * So for now, we side-step this mess and use Windows thread primitives + * directly here. + * + * FIXME: On the other hand, u_thread_self() is a bad + * abstraction. Even with pthreads, there is no guarantee that + * pthread_self() will return numeric IDs -- we should be using + * pthread_equal() instead of assuming we can compare thread ids... + */ +#ifdef _WIN32 + return GetCurrentThreadId(); +#else return (unsigned long) (uintptr_t) thrd_current(); +#endif } |