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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-11-01 11:55:35 +0100 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-11-01 11:55:35 +0100 |
commit | 3c237122a91c0a782183c63e9c277ab97837b9cf (patch) | |
tree | 8d48ea190a778eaedaa182b7a58abae43a157345 /include/semaphore.h | |
parent | 0cb5361e21196dcc2bd8a1763af5c6f0cf82ca5f (diff) | |
parent | c7c777b3d43d490c2012f6b8e6a61c455479fbbc (diff) |
Merge branch 'master-glibc' into master-glibc-2.21
Diffstat (limited to 'include/semaphore.h')
-rw-r--r-- | include/semaphore.h | 56 |
1 files changed, 34 insertions, 22 deletions
diff --git a/include/semaphore.h b/include/semaphore.h index 657e796..64249f6 100644 --- a/include/semaphore.h +++ b/include/semaphore.h @@ -20,49 +20,61 @@ #define _SEMAPHORE_H 1 #include <features.h> +#include <sys/types.h> +#ifdef __USE_XOPEN2K +# define __need_timespec +# include <time.h> +#endif -__BEGIN_DECLS - +/* Get the definition for struct __semaphore. */ #include <bits/semaphore.h> + +__BEGIN_DECLS + #define SEM_FAILED ((void *) 0) typedef struct __semaphore sem_t; /* Initialize semaphore *SEM with value VALUE. */ -extern int sem_init (sem_t *sem, int pshared, unsigned value); - +extern int sem_init (sem_t *__sem, int __pshared, unsigned int __value) + __THROW; /* Destroy semaphore *SEM created with sem_init. */ -extern int sem_destroy (sem_t *sem); +extern int sem_destroy (sem_t *__sem) __THROW; -/* Store the value of semaphore *SEM in *VALUE. */ -extern int sem_getvalue (sem_t *__restrict sem, int *__restrict value); +/* Open a named semaphore. */ +extern sem_t *sem_open (const char *__name, int __oflag, ...) __THROW; -/* Perform a down operation on semaphore *SEM. */ -extern int sem_wait (sem_t *sem); +/* Close a semaphore returned by sem_open. */ +extern int sem_close (sem_t *__sem) __THROW; -/* Perform a down operation on semaphore *SEM if it can be done so - without blocking. */ -extern int sem_trywait (sem_t *sem); +/* Unlink a named semaphore. */ +extern int sem_unlink (const char *__name) __THROW; + +/* Perform a down operation on semaphore *SEM. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int sem_wait (sem_t *__sem); #ifdef __USE_XOPEN2K /* Perform a down operation on semaphore *SEM but don't wait longer than TIMEOUT. */ -extern int sem_timedwait (sem_t *__restrict sem, - const struct timespec *__restrict timeout); +extern int sem_timedwait (sem_t *__restrict __sem, + const struct timespec *__restrict __abstime); #endif -/* Perform an up operation on semaphore *SEM. */ -extern int sem_post (sem_t *sem); +/* Perform a down operation on semaphore *SEM if it can be done so + without blocking. */ +extern int sem_trywait (sem_t *__sem) __THROWNL; -/* Open a named semaphore. */ -extern sem_t *sem_open (const char *name, int open_flags, ...); +/* Perform an up operation on semaphore *SEM. */ +extern int sem_post (sem_t *__sem) __THROWNL; -/* Close a semaphore returned by sem_open. */ -extern int sem_close (sem_t *sem); +/* Store the value of semaphore *SEM in *VALUE. */ +extern int sem_getvalue (sem_t *__restrict __sem, int *__restrict __sval) + __THROW; -/* Unlink a named semaphore. */ -extern int sem_unlink (const char *name); __END_DECLS |