URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [semunlink.c] - Rev 593
Go to most recent revision | Compare with Previous | Blame | View Log
/* * $Id: semunlink.c,v 1.2 2001-09-27 11:59:17 chris Exp $ */ #include <stdarg.h> #include <errno.h> #include <fcntl.h> #include <pthread.h> #include <semaphore.h> #include <limits.h> #include <rtems/system.h> #include <rtems/score/object.h> #include <rtems/posix/semaphore.h> #include <rtems/posix/time.h> #include <rtems/posix/seterr.h> /*PAGE * * sem_unlink * * Unlinks a named semaphore, sem_close must also be called to remove * the semaphore. * * 11.2.5 Remove a Named Semaphore, P1003.1b-1993, p.225 */ int sem_unlink( const char *name ) { int status; register POSIX_Semaphore_Control *the_semaphore; Objects_Id the_semaphore_id; _Thread_Disable_dispatch(); status = _POSIX_Semaphore_Name_to_id( name, &the_semaphore_id ); if ( status != 0 ) { _Thread_Enable_dispatch(); set_errno_and_return_minus_one( status ); } /* * Don't support unlinking a remote semaphore. */ if ( !_Objects_Is_local_id(the_semaphore_id) ) { _Thread_Enable_dispatch(); set_errno_and_return_minus_one( ENOSYS ); } the_semaphore = (POSIX_Semaphore_Control *) _Objects_Get_local_object( &_POSIX_Semaphore_Information, _Objects_Get_index( the_semaphore_id ) ); #if defined(RTEMS_MULTIPROCESSING) if ( the_semaphore->process_shared == PTHREAD_PROCESS_SHARED ) { _Objects_MP_Close( &_POSIX_Semaphore_Information, the_semaphore_id ); } #endif the_semaphore->linked = FALSE; _POSIX_Semaphore_Namespace_remove( the_semaphore ); _POSIX_Semaphore_Delete( the_semaphore ); _Thread_Enable_dispatch(); return 0; }
Go to most recent revision | Compare with Previous | Blame | View Log