diff options
Diffstat (limited to 'nptl/pthread_cond_timedwait.c')
| -rw-r--r-- | nptl/pthread_cond_timedwait.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/nptl/pthread_cond_timedwait.c b/nptl/pthread_cond_timedwait.c index a8d95dc224..9d268e911e 100644 --- a/nptl/pthread_cond_timedwait.c +++ b/nptl/pthread_cond_timedwait.c @@ -23,6 +23,7 @@ #include <lowlevellock.h> #include <pthread.h> #include <pthreadP.h> +#include <kernel-features.h> #include <shlib-compat.h> @@ -53,14 +54,17 @@ __pthread_cond_timedwait (cond, mutex, abstime) if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) return EINVAL; + int pshared = (cond->__data.__mutex == (void *) ~0l) + ? LLL_SHARED : LLL_PRIVATE; + /* Make sure we are along. */ - lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_lock (cond->__data.__lock, pshared); /* Now we can release the mutex. */ int err = __pthread_mutex_unlock_usercnt (mutex, 0); if (err) { - lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_unlock (cond->__data.__lock, pshared); return err; } @@ -146,22 +150,20 @@ __pthread_cond_timedwait (cond, mutex, abstime) unsigned int futex_val = cond->__data.__futex; /* Prepare to wait. Release the condvar futex. */ - lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_unlock (cond->__data.__lock, pshared); /* Enable asynchronous cancellation. Required by the standard. */ cbuffer.oldtype = __pthread_enable_asynccancel (); /* Wait until woken by signal or broadcast. */ err = lll_futex_timed_wait (&cond->__data.__futex, - futex_val, &rt, - // XYZ check mutex flag - LLL_SHARED); + futex_val, &rt, pshared); /* Disable asynchronous cancellation. */ __pthread_disable_asynccancel (cbuffer.oldtype); /* We are going to look at shared data again, so get the lock. */ - lll_lock(cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_lock (cond->__data.__lock, pshared); /* If a broadcast happened, we are done. */ if (cbuffer.bc_seq != cond->__data.__broadcast_seq) @@ -198,12 +200,10 @@ __pthread_cond_timedwait (cond, mutex, abstime) and it can be successfully destroyed. */ if (cond->__data.__total_seq == -1ULL && cond->__data.__nwaiters < (1 << COND_NWAITERS_SHIFT)) - lll_futex_wake (&cond->__data.__nwaiters, 1, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wake (&cond->__data.__nwaiters, 1, pshared); /* We are done with the condvar. */ - lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_unlock (cond->__data.__lock, pshared); /* The cancellation handling is back to normal, remove the handler. */ __pthread_cleanup_pop (&buffer, 0); |