1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #include "system.h" 29*cdf0e10cSrcweir 30*cdf0e10cSrcweir #include <osl/diagnose.h> 31*cdf0e10cSrcweir #include <osl/semaphor.h> 32*cdf0e10cSrcweir 33*cdf0e10cSrcweir /* 34*cdf0e10cSrcweir Implemetation notes: 35*cdf0e10cSrcweir The void* represented by oslSemaphore is used 36*cdf0e10cSrcweir to store a WIN32 HANDLE. 37*cdf0e10cSrcweir */ 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir 40*cdf0e10cSrcweir /*****************************************************************************/ 41*cdf0e10cSrcweir /* osl_createSemaphore */ 42*cdf0e10cSrcweir /*****************************************************************************/ 43*cdf0e10cSrcweir oslSemaphore SAL_CALL osl_createSemaphore(sal_uInt32 initialCount) 44*cdf0e10cSrcweir { 45*cdf0e10cSrcweir oslSemaphore Semaphore; 46*cdf0e10cSrcweir 47*cdf0e10cSrcweir Semaphore= CreateSemaphore(0, initialCount, INT_MAX, 0); 48*cdf0e10cSrcweir 49*cdf0e10cSrcweir /* create failed? */ 50*cdf0e10cSrcweir if((HANDLE)Semaphore == INVALID_HANDLE_VALUE) 51*cdf0e10cSrcweir { 52*cdf0e10cSrcweir Semaphore= 0; 53*cdf0e10cSrcweir } 54*cdf0e10cSrcweir 55*cdf0e10cSrcweir return Semaphore; 56*cdf0e10cSrcweir } 57*cdf0e10cSrcweir 58*cdf0e10cSrcweir /*****************************************************************************/ 59*cdf0e10cSrcweir /* osl_destroySemaphore */ 60*cdf0e10cSrcweir /*****************************************************************************/ 61*cdf0e10cSrcweir void SAL_CALL osl_destroySemaphore(oslSemaphore Semaphore) 62*cdf0e10cSrcweir { 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir 65*cdf0e10cSrcweir if(Semaphore != 0) 66*cdf0e10cSrcweir { 67*cdf0e10cSrcweir CloseHandle((HANDLE)Semaphore); 68*cdf0e10cSrcweir } 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir } 71*cdf0e10cSrcweir 72*cdf0e10cSrcweir /*****************************************************************************/ 73*cdf0e10cSrcweir /* osl_acquireSemaphore */ 74*cdf0e10cSrcweir /*****************************************************************************/ 75*cdf0e10cSrcweir sal_Bool SAL_CALL osl_acquireSemaphore(oslSemaphore Semaphore) 76*cdf0e10cSrcweir { 77*cdf0e10cSrcweir OSL_ASSERT(Semaphore != 0); 78*cdf0e10cSrcweir 79*cdf0e10cSrcweir switch ( WaitForSingleObject( (HANDLE)Semaphore, INFINITE ) ) 80*cdf0e10cSrcweir { 81*cdf0e10cSrcweir case WAIT_OBJECT_0: 82*cdf0e10cSrcweir return sal_True; 83*cdf0e10cSrcweir 84*cdf0e10cSrcweir default: 85*cdf0e10cSrcweir return (sal_False); 86*cdf0e10cSrcweir } 87*cdf0e10cSrcweir } 88*cdf0e10cSrcweir 89*cdf0e10cSrcweir /*****************************************************************************/ 90*cdf0e10cSrcweir /* osl_tryToAcquireSemaphore */ 91*cdf0e10cSrcweir /*****************************************************************************/ 92*cdf0e10cSrcweir sal_Bool SAL_CALL osl_tryToAcquireSemaphore(oslSemaphore Semaphore) 93*cdf0e10cSrcweir { 94*cdf0e10cSrcweir OSL_ASSERT(Semaphore != 0); 95*cdf0e10cSrcweir return (sal_Bool)(WaitForSingleObject((HANDLE)Semaphore, 0) == WAIT_OBJECT_0); 96*cdf0e10cSrcweir } 97*cdf0e10cSrcweir 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir /*****************************************************************************/ 100*cdf0e10cSrcweir /* osl_releaseSemaphore */ 101*cdf0e10cSrcweir /*****************************************************************************/ 102*cdf0e10cSrcweir sal_Bool SAL_CALL osl_releaseSemaphore(oslSemaphore Semaphore) 103*cdf0e10cSrcweir { 104*cdf0e10cSrcweir OSL_ASSERT(Semaphore != 0); 105*cdf0e10cSrcweir 106*cdf0e10cSrcweir /* increase count by one, not interested in previous count */ 107*cdf0e10cSrcweir return (sal_Bool)(ReleaseSemaphore((HANDLE)Semaphore, 1, NULL) != FALSE); 108*cdf0e10cSrcweir } 109*cdf0e10cSrcweir 110*cdf0e10cSrcweir 111*cdf0e10cSrcweir 112