diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-12-13 15:14:40 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-12-16 01:58:33 +0100 |
| commit | c8f9421298f5f973b31a7cbbc76e61b06eca03bc (patch) | |
| tree | 86bf4c058624d76b6e35fd44f1f506c3ad9b3d94 /sysdeps/htl/sem-destroy.c | |
| parent | 644d98ec4d8405e9b721ecb715483ea1983e116f (diff) | |
| download | glibc-c8f9421298f5f973b31a7cbbc76e61b06eca03bc.tar glibc-c8f9421298f5f973b31a7cbbc76e61b06eca03bc.tar.gz glibc-c8f9421298f5f973b31a7cbbc76e61b06eca03bc.tar.bz2 glibc-c8f9421298f5f973b31a7cbbc76e61b06eca03bc.zip | |
htl: Add pshared semaphore support
The implementation is extremely similar to the nptl implementation, but
with slight differences in the futex interface. This fixes some of BZ
25521.
Diffstat (limited to 'sysdeps/htl/sem-destroy.c')
| -rw-r--r-- | sysdeps/htl/sem-destroy.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sysdeps/htl/sem-destroy.c b/sysdeps/htl/sem-destroy.c index 4caa004444..ebfeb2a0e6 100644 --- a/sysdeps/htl/sem-destroy.c +++ b/sysdeps/htl/sem-destroy.c @@ -24,7 +24,15 @@ int __sem_destroy (sem_t *sem) { - if (sem->__queue) + struct new_sem *isem = (struct new_sem *) sem; + if ( +#if __HAVE_64B_ATOMICS + atomic_load_relaxed (&isem->data) >> SEM_NWAITERS_SHIFT +#else + atomic_load_relaxed (&isem->value) & SEM_NWAITERS_MASK + || isem->nwaiters +#endif + ) /* There are threads waiting on *SEM. */ { errno = EBUSY; |