diff options
| author | Ulrich Drepper <drepper@redhat.com> | 1999-04-15 13:54:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-04-15 13:54:57 +0000 |
| commit | f8afba91cf8bf8f8324c3c88b8c368e7c2bd5894 (patch) | |
| tree | dbdd5f960cf217c76d495ba44173feafae9d184f /linuxthreads/semaphore.h | |
| parent | a5486962345290853d7d42ef4a799f16bd6764e2 (diff) | |
Update.
* Versions.def: Add GLIBC_2.1.1 to libpthread.
* iconvdata/Makefile (modules): Add KOI8-U.
(distribute): Add koi8-u.c.
(gen-8bit-gap-modules): Add koi8-u.
* iconvdata/gconv-modules: Add KOI8-U entries.
* iconvdata/koi8-u.c: New file.
1999-04-13 Thorsten Kukuk <kukuk@suse.de>
* sunrpc/auth_des.c: 64bit fixes, security fixes.
* sunrpc/auth_none.c: Pretty print.
* sunrpc/auth_unix.c: Likewise.
* sunrpc/authdes_prot.c: Likewise.
* sunrpc/authuxprot.c: Likewise.
* sunrpc/bindrsvprt.c: Likewise.
* sunrpc/clnt_gen.c: Likewise.
* sunrpc/rpc/xdr.h: Likewise.
* sunrpc/rpc/auth_des.h: Add rpc_timeval struct.
* sunrpc/rpc_cmsg.c: Don't use *long pointers.
* sunrpc/rtime.c: Use new rpc_timeval.
* sunrpc/svc_authux.c: Don't use *long pointers.
* sunrpc/svcauth_des.c: Likewise + security fixes.
* sunrpc/xdr_mem.c: Don't use *long pointers.
* sunrpc/xdr_rec.c: Likewise.
* sunrpc/xdr_sizeof.c: Likewise.
* sunrpc/xdr_stdio.c: Likewise.
1999-04-15 Ulrich Drepper <drepper@cygnus.com>
Diffstat (limited to 'linuxthreads/semaphore.h')
| -rw-r--r-- | linuxthreads/semaphore.h | 64 |
1 files changed, 51 insertions, 13 deletions
diff --git a/linuxthreads/semaphore.h b/linuxthreads/semaphore.h index fe2b451e07..1d5f933da3 100644 --- a/linuxthreads/semaphore.h +++ b/linuxthreads/semaphore.h @@ -18,24 +18,62 @@ #include <features.h> #include <sys/types.h> -#include <limits.h> +#ifndef _PTHREAD_DESCR_DEFINED +/* Thread descriptors. Needed for `sem_t' definition. */ +typedef struct _pthread_descr_struct *_pthread_descr; +# define _PTHREAD_DESCR_DEFINED +#endif -#define SEM_VALUE_MAX INT_MAX - -typedef struct { - struct { long status; int spinlock; } sem_lock; - int sem_value; - _pthread_descr sem_waiting; +/* System specific semaphore definition. */ +typedef struct +{ + struct + { + long int status; + int spinlock; + } __sem_lock; + int __sem_value; + _pthread_descr __sem_waiting; } sem_t; + + +/* Value returned if `sem_open' failed. */ +#define SEM_FAILED ((sem_t *) NULL) + +/* Maximum value the semaphore can have. */ +#define SEM_VALUE_MAX ((int) ((~0u) >> 1)) + + __BEGIN_DECLS -extern int sem_init __P((sem_t *__sem, int __pshared, unsigned int __value)); -extern int sem_destroy __P((sem_t *__sem)); -extern int sem_wait __P((sem_t *__sem)); -extern int sem_trywait __P((sem_t *__sem)); -extern int sem_post __P((sem_t *__sem)); -extern int sem_getvalue __P((sem_t *__sem, int *__sval)); +/* Initialize semaphore object SEM to VALUE. If PSHARED then share it + with other processes. */ +extern int sem_init __P ((sem_t *__sem, int __pshared, unsigned int __value)); + +/* Free resources associated with semaphore object SEM. */ +extern int sem_destroy __P ((sem_t *__sem)); + +/* Open a named semaphore NAME with open flaot OFLAG. */ +extern sem_t *sem_open __P ((__const char *__name, int __oflag, ...)); + +/* Close descriptor for named semaphore SEM. */ +extern int sem_close __P ((sem_t *__sem)); + +/* Remove named semaphore NAME. */ +extern int sem_unlink __P ((__const char *__name)); + +/* Wait for SEM being posted. */ +extern int sem_wait __P ((sem_t *__sem)); + +/* Test whether SEM is posted. */ +extern int sem_trywait __P ((sem_t *__sem)); + +/* Post SEM. */ +extern int sem_post __P ((sem_t *__sem)); + +/* Get current value of SEM and store it in *SVAL. */ +extern int sem_getvalue __P ((sem_t *__sem, int *__sval)); __END_DECLS |