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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-02-09 22:44:08 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-02-10 01:03:54 +0000 |
| commit | 5e77ec7c6e64d67f048caa5d4dd81f10fca3dffc (patch) | |
| tree | 1cd030eb9cda30d4dd7cf0e7533ee4fe0c0063f0 | |
| parent | 819bb5e660bc18fe8b39c5ffd4b9b37f6e69f4cb (diff) | |
| download | glibc-5e77ec7c6e64d67f048caa5d4dd81f10fca3dffc.zip glibc-5e77ec7c6e64d67f048caa5d4dd81f10fca3dffc.tar.gz glibc-5e77ec7c6e64d67f048caa5d4dd81f10fca3dffc.tar.bz2 | |
htl: Add support for semaphore maximum value
| -rw-r--r-- | sysdeps/htl/sem-post.c | 7 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/bits/local_lim.h | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/sysdeps/htl/sem-post.c b/sysdeps/htl/sem-post.c index 77f2973..2e0be8f 100644 --- a/sysdeps/htl/sem-post.c +++ b/sysdeps/htl/sem-post.c @@ -30,6 +30,13 @@ __sem_post (sem_t *sem) if (sem->__value > 0) /* Do a quick up. */ { + if (sem->__value == SEM_VALUE_MAX) + { + __pthread_spin_unlock (&sem->__lock); + errno = EOVERFLOW; + return -1; + } + assert (sem->__queue == NULL); sem->__value++; __pthread_spin_unlock (&sem->__lock); diff --git a/sysdeps/mach/hurd/bits/local_lim.h b/sysdeps/mach/hurd/bits/local_lim.h index 348eee7..8e781e4 100644 --- a/sysdeps/mach/hurd/bits/local_lim.h +++ b/sysdeps/mach/hurd/bits/local_lim.h @@ -41,3 +41,6 @@ /* The number of threads per process. */ #define _POSIX_THREAD_THREADS_MAX 64 + +/* Maximum value the semaphore can have. */ +#define SEM_VALUE_MAX (2147483647) |