diff options
Diffstat (limited to 'cpukit/posix/include/semaphore.h')
| -rw-r--r-- | cpukit/posix/include/semaphore.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/cpukit/posix/include/semaphore.h b/cpukit/posix/include/semaphore.h index 2f00d5c971..5727456b34 100644 --- a/cpukit/posix/include/semaphore.h +++ b/cpukit/posix/include/semaphore.h @@ -29,13 +29,16 @@ extern "C" { /* * 11.1 Semaphore Characteristics, P1003.1b-1993, p.219 */ - typedef int sem_t; /* - * 11.2.1 Initialize an Unnamed Semaphore, P1003.1b-1993, p.219 + * Bad semaphore Id */ +#define SEM_FAILED (sem_t *) -1 +/* + * 11.2.1 Initialize an Unnamed Semaphore, P1003.1b-1993, p.219 + */ int sem_init( sem_t *sem, int pshared, @@ -45,7 +48,6 @@ int sem_init( /* * 11.2.2 Destroy an Unnamed Semaphore, P1003.1b-1993, p.220 */ - int sem_destroy( sem_t *sem ); @@ -55,7 +57,6 @@ int sem_destroy( * * NOTE: Follows open() calling conventions. */ - sem_t *sem_open( const char *name, int oflag, @@ -65,7 +66,6 @@ sem_t *sem_open( /* * 11.2.4 Close a Named Semaphore, P1003.1b-1993, p.224 */ - int sem_close( sem_t *sem ); @@ -73,7 +73,6 @@ int sem_close( /* * 11.2.5 Remove a Named Semaphore, P1003.1b-1993, p.225 */ - int sem_unlink( const char *name ); @@ -83,7 +82,6 @@ int sem_unlink( * * NOTE: P1003.4b/D8 adds sem_timedwait(), p. 27 */ - int sem_wait( sem_t *sem ); |