diff options
Diffstat (limited to 'c/src/exec/score/src/coresemseize.c')
-rw-r--r-- | c/src/exec/score/src/coresemseize.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/c/src/exec/score/src/coresemseize.c b/c/src/exec/score/src/coresemseize.c deleted file mode 100644 index 0f3c25aeac..0000000000 --- a/c/src/exec/score/src/coresemseize.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * CORE Semaphore Handler - * - * DESCRIPTION: - * - * This package is the implementation of the CORE Semaphore Handler. - * This core object utilizes standard Dijkstra counting semaphores to provide - * synchronization and mutual exclusion capabilities. - * - * COPYRIGHT (c) 1989-1999. - * On-Line Applications Research Corporation (OAR). - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/score/isr.h> -#include <rtems/score/coresem.h> -#include <rtems/score/states.h> -#include <rtems/score/thread.h> -#include <rtems/score/threadq.h> -#if defined(RTEMS_MULTIPROCESSING) -#include <rtems/score/mpci.h> -#endif - -/*PAGE - * - * _CORE_semaphore_Seize - * - * This routine attempts to allocate a core semaphore to the calling thread. - * - * Input parameters: - * the_semaphore - pointer to semaphore control block - * id - id of object to wait on - * wait - TRUE if wait is allowed, FALSE otherwise - * timeout - number of ticks to wait (0 means forever) - * - * Output parameters: NONE - * - * INTERRUPT LATENCY: - * available - * wait - */ - -void _CORE_semaphore_Seize( - CORE_semaphore_Control *the_semaphore, - Objects_Id id, - boolean wait, - Watchdog_Interval timeout -) -{ - Thread_Control *executing; - ISR_Level level; - - executing = _Thread_Executing; - executing->Wait.return_code = CORE_SEMAPHORE_STATUS_SUCCESSFUL; - _ISR_Disable( level ); - if ( the_semaphore->count != 0 ) { - the_semaphore->count -= 1; - _ISR_Enable( level ); - return; - } - - if ( !wait ) { - _ISR_Enable( level ); - executing->Wait.return_code = CORE_SEMAPHORE_STATUS_UNSATISFIED_NOWAIT; - return; - } - - _Thread_queue_Enter_critical_section( &the_semaphore->Wait_queue ); - executing->Wait.queue = &the_semaphore->Wait_queue; - executing->Wait.id = id; - _ISR_Enable( level ); - - _Thread_queue_Enqueue( &the_semaphore->Wait_queue, timeout ); -} |