113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "system.h"
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#include <osl/diagnose.h>
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#include <osl/semaphor.h>
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/*
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Implemetation notes:
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The void* represented by oslSemaphore is used
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to store a WIN32 HANDLE.
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*/
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/*****************************************************************************/
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/* osl_createSemaphore */
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/*****************************************************************************/
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oslSemaphore SAL_CALL osl_createSemaphore(sal_uInt32 initialCount)
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{
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oslSemaphore Semaphore;
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Semaphore= CreateSemaphore(0, initialCount, INT_MAX, 0);
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/* create failed? */
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if((HANDLE)Semaphore == INVALID_HANDLE_VALUE)
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{
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Semaphore= 0;
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}
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return Semaphore;
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}
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/*****************************************************************************/
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/* osl_destroySemaphore */
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/*****************************************************************************/
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void SAL_CALL osl_destroySemaphore(oslSemaphore Semaphore)
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{
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if(Semaphore != 0)
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{
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CloseHandle((HANDLE)Semaphore);
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}
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}
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/*****************************************************************************/
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/* osl_acquireSemaphore */
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/*****************************************************************************/
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sal_Bool SAL_CALL osl_acquireSemaphore(oslSemaphore Semaphore)
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{
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OSL_ASSERT(Semaphore != 0);
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switch ( WaitForSingleObject( (HANDLE)Semaphore, INFINITE ) )
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{
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case WAIT_OBJECT_0:
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return sal_True;
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default:
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return (sal_False);
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}
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}
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/*****************************************************************************/
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/* osl_tryToAcquireSemaphore */
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/*****************************************************************************/
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sal_Bool SAL_CALL osl_tryToAcquireSemaphore(oslSemaphore Semaphore)
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{
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OSL_ASSERT(Semaphore != 0);
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return (sal_Bool)(WaitForSingleObject((HANDLE)Semaphore, 0) == WAIT_OBJECT_0);
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}
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/*****************************************************************************/
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/* osl_releaseSemaphore */
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/*****************************************************************************/
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sal_Bool SAL_CALL osl_releaseSemaphore(oslSemaphore Semaphore)
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{
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OSL_ASSERT(Semaphore != 0);
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/* increase count by one, not interested in previous count */
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return (sal_Bool)(ReleaseSemaphore((HANDLE)Semaphore, 1, NULL) != FALSE);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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