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Diffstat (limited to 'pr/src/md/os2/os2sem.c')
-rw-r--r-- | pr/src/md/os2/os2sem.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/pr/src/md/os2/os2sem.c b/pr/src/md/os2/os2sem.c new file mode 100644 index 0000000..20b57a8 --- /dev/null +++ b/pr/src/md/os2/os2sem.c @@ -0,0 +1,93 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * OS/2-specific semaphore handling code. + * + */ + +#include "primpl.h" + + +void +_PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value) +{ + int rv; + + /* Our Sems don't support a value > 1 */ + PR_ASSERT(value <= 1); + + rv = DosCreateEventSem(NULL, &md->sem, 0, 0); + PR_ASSERT(rv == NO_ERROR); +} + +void +_PR_MD_DESTROY_SEM(_MDSemaphore *md) +{ + int rv; + rv = DosCloseEventSem(md->sem); + PR_ASSERT(rv == NO_ERROR); + +} + +PRStatus +_PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks) +{ + int rv; + rv = DosWaitEventSem(md->sem, PR_IntervalToMilliseconds(ticks)); + + if (rv == NO_ERROR) + return PR_SUCCESS; + else + return PR_FAILURE; +} + +PRStatus +_PR_MD_WAIT_SEM(_MDSemaphore *md) +{ + return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT); +} + +void +_PR_MD_POST_SEM(_MDSemaphore *md) +{ + int rv; + rv = DosPostEventSem(md->sem); + PR_ASSERT(rv == NO_ERROR); +} + + |