michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * OS/2-specific semaphore handling code.
michael@0:  *
michael@0:  */
michael@0: 
michael@0: #include "primpl.h"
michael@0: 
michael@0: 
michael@0: void
michael@0: _PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value)
michael@0: {
michael@0:    int rv;
michael@0: 
michael@0:     /* Our Sems don't support a value > 1 */
michael@0:     PR_ASSERT(value <= 1);
michael@0: 
michael@0:     rv = DosCreateEventSem(NULL, &md->sem, 0, 0);
michael@0:     PR_ASSERT(rv == NO_ERROR);
michael@0: }
michael@0: 
michael@0: void
michael@0: _PR_MD_DESTROY_SEM(_MDSemaphore *md)
michael@0: {
michael@0:    int rv;
michael@0:    rv = DosCloseEventSem(md->sem);
michael@0:    PR_ASSERT(rv == NO_ERROR);
michael@0: 
michael@0: }
michael@0: 
michael@0: PRStatus
michael@0: _PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks)
michael@0: {
michael@0:     int rv;
michael@0:     rv = DosWaitEventSem(md->sem, PR_IntervalToMilliseconds(ticks));
michael@0: 
michael@0:     if (rv == NO_ERROR)
michael@0:         return PR_SUCCESS;
michael@0:     else
michael@0:         return PR_FAILURE;
michael@0: }
michael@0: 
michael@0: PRStatus
michael@0: _PR_MD_WAIT_SEM(_MDSemaphore *md)
michael@0: {
michael@0:     return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT);
michael@0: }
michael@0: 
michael@0: void
michael@0: _PR_MD_POST_SEM(_MDSemaphore *md)
michael@0: {
michael@0:    int rv;
michael@0:    rv = DosPostEventSem(md->sem);
michael@0:    PR_ASSERT(rv == NO_ERROR); 
michael@0: }
michael@0: 
michael@0: