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 29*cdf0e10cSrcweir #include "system.h" 30*cdf0e10cSrcweir #include <sal/types.h> 31*cdf0e10cSrcweir 32*cdf0e10cSrcweir #include <osl/conditn.h> 33*cdf0e10cSrcweir #include <osl/diagnose.h> 34*cdf0e10cSrcweir #include <osl/time.h> 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir typedef struct _oslConditionImpl 38*cdf0e10cSrcweir { 39*cdf0e10cSrcweir pthread_cond_t m_Condition; 40*cdf0e10cSrcweir pthread_mutex_t m_Lock; 41*cdf0e10cSrcweir sal_Bool m_State; 42*cdf0e10cSrcweir } oslConditionImpl; 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir 45*cdf0e10cSrcweir /*****************************************************************************/ 46*cdf0e10cSrcweir /* osl_createCondition */ 47*cdf0e10cSrcweir /*****************************************************************************/ 48*cdf0e10cSrcweir oslCondition SAL_CALL osl_createCondition() 49*cdf0e10cSrcweir { 50*cdf0e10cSrcweir oslConditionImpl* pCond; 51*cdf0e10cSrcweir int nRet=0; 52*cdf0e10cSrcweir 53*cdf0e10cSrcweir pCond = (oslConditionImpl*) malloc(sizeof(oslConditionImpl)); 54*cdf0e10cSrcweir 55*cdf0e10cSrcweir OSL_ASSERT(pCond); 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir if ( pCond == 0 ) 58*cdf0e10cSrcweir { 59*cdf0e10cSrcweir return 0; 60*cdf0e10cSrcweir } 61*cdf0e10cSrcweir 62*cdf0e10cSrcweir pCond->m_State = sal_False; 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir /* init condition variable with default attr. (PTHREAD_PROCESS_PRIVAT) */ 65*cdf0e10cSrcweir nRet = pthread_cond_init(&pCond->m_Condition, PTHREAD_CONDATTR_DEFAULT); 66*cdf0e10cSrcweir if ( nRet != 0 ) 67*cdf0e10cSrcweir { 68*cdf0e10cSrcweir OSL_TRACE("osl_createCondition : condition init failed. Errno: %d; '%s'\n", 69*cdf0e10cSrcweir nRet, strerror(nRet)); 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir free(pCond); 72*cdf0e10cSrcweir return 0; 73*cdf0e10cSrcweir } 74*cdf0e10cSrcweir 75*cdf0e10cSrcweir nRet = pthread_mutex_init(&pCond->m_Lock, PTHREAD_MUTEXATTR_DEFAULT); 76*cdf0e10cSrcweir if ( nRet != 0 ) 77*cdf0e10cSrcweir { 78*cdf0e10cSrcweir OSL_TRACE("osl_createCondition : mutex init failed. Errno: %d; %s\n", 79*cdf0e10cSrcweir nRet, strerror(nRet)); 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir nRet = pthread_cond_destroy(&pCond->m_Condition); 82*cdf0e10cSrcweir if ( nRet != 0 ) 83*cdf0e10cSrcweir { 84*cdf0e10cSrcweir OSL_TRACE("osl_createCondition : destroy condition failed. Errno: %d; '%s'\n", 85*cdf0e10cSrcweir nRet, strerror(nRet)); 86*cdf0e10cSrcweir } 87*cdf0e10cSrcweir 88*cdf0e10cSrcweir free(pCond); 89*cdf0e10cSrcweir pCond = 0; 90*cdf0e10cSrcweir } 91*cdf0e10cSrcweir 92*cdf0e10cSrcweir return (oslCondition)pCond; 93*cdf0e10cSrcweir } 94*cdf0e10cSrcweir 95*cdf0e10cSrcweir /*****************************************************************************/ 96*cdf0e10cSrcweir /* osl_destroyCondition */ 97*cdf0e10cSrcweir /*****************************************************************************/ 98*cdf0e10cSrcweir void SAL_CALL osl_destroyCondition(oslCondition Condition) 99*cdf0e10cSrcweir { 100*cdf0e10cSrcweir oslConditionImpl* pCond; 101*cdf0e10cSrcweir int nRet = 0; 102*cdf0e10cSrcweir 103*cdf0e10cSrcweir if ( Condition ) 104*cdf0e10cSrcweir { 105*cdf0e10cSrcweir pCond = (oslConditionImpl*)Condition; 106*cdf0e10cSrcweir 107*cdf0e10cSrcweir nRet = pthread_cond_destroy(&pCond->m_Condition); 108*cdf0e10cSrcweir if ( nRet != 0 ) 109*cdf0e10cSrcweir { 110*cdf0e10cSrcweir OSL_TRACE("osl_destroyCondition : destroy condition failed. Errno: %d; '%s'\n", 111*cdf0e10cSrcweir nRet, strerror(nRet)); 112*cdf0e10cSrcweir } 113*cdf0e10cSrcweir nRet = pthread_mutex_destroy(&pCond->m_Lock); 114*cdf0e10cSrcweir if ( nRet != 0 ) 115*cdf0e10cSrcweir { 116*cdf0e10cSrcweir OSL_TRACE("osl_destroyCondition : destroy mutex failed. Errno: %d; '%s'\n", 117*cdf0e10cSrcweir nRet, strerror(nRet)); 118*cdf0e10cSrcweir } 119*cdf0e10cSrcweir 120*cdf0e10cSrcweir free(Condition); 121*cdf0e10cSrcweir } 122*cdf0e10cSrcweir 123*cdf0e10cSrcweir return; 124*cdf0e10cSrcweir } 125*cdf0e10cSrcweir 126*cdf0e10cSrcweir /*****************************************************************************/ 127*cdf0e10cSrcweir /* osl_setCondition */ 128*cdf0e10cSrcweir /*****************************************************************************/ 129*cdf0e10cSrcweir sal_Bool SAL_CALL osl_setCondition(oslCondition Condition) 130*cdf0e10cSrcweir { 131*cdf0e10cSrcweir oslConditionImpl* pCond; 132*cdf0e10cSrcweir int nRet=0; 133*cdf0e10cSrcweir 134*cdf0e10cSrcweir OSL_ASSERT(Condition); 135*cdf0e10cSrcweir pCond = (oslConditionImpl*)Condition; 136*cdf0e10cSrcweir 137*cdf0e10cSrcweir if ( pCond == 0 ) 138*cdf0e10cSrcweir { 139*cdf0e10cSrcweir return sal_False; 140*cdf0e10cSrcweir } 141*cdf0e10cSrcweir 142*cdf0e10cSrcweir nRet = pthread_mutex_lock(&pCond->m_Lock); 143*cdf0e10cSrcweir if ( nRet != 0 ) 144*cdf0e10cSrcweir { 145*cdf0e10cSrcweir OSL_TRACE("osl_setCondition : mutex lock failed. Errno: %d; %s\n", 146*cdf0e10cSrcweir nRet, strerror(nRet)); 147*cdf0e10cSrcweir return sal_False; 148*cdf0e10cSrcweir } 149*cdf0e10cSrcweir 150*cdf0e10cSrcweir pCond->m_State = sal_True; 151*cdf0e10cSrcweir nRet = pthread_cond_broadcast(&pCond->m_Condition); 152*cdf0e10cSrcweir if ( nRet != 0 ) 153*cdf0e10cSrcweir { 154*cdf0e10cSrcweir OSL_TRACE("osl_setCondition : condition broadcast failed. Errno: %d; %s\n", 155*cdf0e10cSrcweir nRet, strerror(nRet)); 156*cdf0e10cSrcweir return sal_False; 157*cdf0e10cSrcweir } 158*cdf0e10cSrcweir 159*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 160*cdf0e10cSrcweir if ( nRet != 0 ) 161*cdf0e10cSrcweir { 162*cdf0e10cSrcweir OSL_TRACE("osl_setCondition : mutex unlock failed. Errno: %d; %s\n", 163*cdf0e10cSrcweir nRet, strerror(nRet)); 164*cdf0e10cSrcweir return sal_False; 165*cdf0e10cSrcweir } 166*cdf0e10cSrcweir 167*cdf0e10cSrcweir return sal_True; 168*cdf0e10cSrcweir 169*cdf0e10cSrcweir } 170*cdf0e10cSrcweir 171*cdf0e10cSrcweir /*****************************************************************************/ 172*cdf0e10cSrcweir /* osl_resetCondition */ 173*cdf0e10cSrcweir /*****************************************************************************/ 174*cdf0e10cSrcweir sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition) 175*cdf0e10cSrcweir { 176*cdf0e10cSrcweir oslConditionImpl* pCond; 177*cdf0e10cSrcweir int nRet=0; 178*cdf0e10cSrcweir 179*cdf0e10cSrcweir OSL_ASSERT(Condition); 180*cdf0e10cSrcweir 181*cdf0e10cSrcweir pCond = (oslConditionImpl*)Condition; 182*cdf0e10cSrcweir 183*cdf0e10cSrcweir if ( pCond == 0 ) 184*cdf0e10cSrcweir { 185*cdf0e10cSrcweir return sal_False; 186*cdf0e10cSrcweir } 187*cdf0e10cSrcweir 188*cdf0e10cSrcweir nRet = pthread_mutex_lock(&pCond->m_Lock); 189*cdf0e10cSrcweir if ( nRet != 0 ) 190*cdf0e10cSrcweir { 191*cdf0e10cSrcweir OSL_TRACE("osl_resetCondition : mutex lock failed. Errno: %d; %s\n", 192*cdf0e10cSrcweir nRet, strerror(nRet)); 193*cdf0e10cSrcweir return sal_False; 194*cdf0e10cSrcweir } 195*cdf0e10cSrcweir 196*cdf0e10cSrcweir pCond->m_State = sal_False; 197*cdf0e10cSrcweir 198*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 199*cdf0e10cSrcweir if ( nRet != 0 ) 200*cdf0e10cSrcweir { 201*cdf0e10cSrcweir OSL_TRACE("osl_resetCondition : mutex unlock failed. Errno: %d; %s\n", 202*cdf0e10cSrcweir nRet, strerror(nRet)); 203*cdf0e10cSrcweir return sal_False; 204*cdf0e10cSrcweir } 205*cdf0e10cSrcweir 206*cdf0e10cSrcweir return sal_True; 207*cdf0e10cSrcweir } 208*cdf0e10cSrcweir 209*cdf0e10cSrcweir /*****************************************************************************/ 210*cdf0e10cSrcweir /* osl_waitCondition */ 211*cdf0e10cSrcweir /*****************************************************************************/ 212*cdf0e10cSrcweir oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition, const TimeValue* pTimeout) 213*cdf0e10cSrcweir { 214*cdf0e10cSrcweir oslConditionImpl* pCond; 215*cdf0e10cSrcweir int nRet=0; 216*cdf0e10cSrcweir oslConditionResult Result = osl_cond_result_ok; 217*cdf0e10cSrcweir 218*cdf0e10cSrcweir OSL_ASSERT(Condition); 219*cdf0e10cSrcweir pCond = (oslConditionImpl*)Condition; 220*cdf0e10cSrcweir 221*cdf0e10cSrcweir if ( pCond == 0 ) 222*cdf0e10cSrcweir { 223*cdf0e10cSrcweir return osl_cond_result_error; 224*cdf0e10cSrcweir } 225*cdf0e10cSrcweir 226*cdf0e10cSrcweir nRet = pthread_mutex_lock(&pCond->m_Lock); 227*cdf0e10cSrcweir if ( nRet != 0 ) 228*cdf0e10cSrcweir { 229*cdf0e10cSrcweir OSL_TRACE("osl_waitCondition : mutex lock failed. Errno: %d; %s\n", 230*cdf0e10cSrcweir nRet, strerror(nRet)); 231*cdf0e10cSrcweir return osl_cond_result_error; 232*cdf0e10cSrcweir } 233*cdf0e10cSrcweir 234*cdf0e10cSrcweir if ( pTimeout ) 235*cdf0e10cSrcweir { 236*cdf0e10cSrcweir if ( ! pCond->m_State ) 237*cdf0e10cSrcweir { 238*cdf0e10cSrcweir int ret; 239*cdf0e10cSrcweir struct timeval tp; 240*cdf0e10cSrcweir struct timespec to; 241*cdf0e10cSrcweir 242*cdf0e10cSrcweir gettimeofday(&tp, NULL); 243*cdf0e10cSrcweir 244*cdf0e10cSrcweir SET_TIMESPEC( to, tp.tv_sec + pTimeout->Seconds, 245*cdf0e10cSrcweir tp.tv_usec * 1000 + pTimeout->Nanosec ); 246*cdf0e10cSrcweir 247*cdf0e10cSrcweir /* spurious wake up prevention */ 248*cdf0e10cSrcweir do 249*cdf0e10cSrcweir { 250*cdf0e10cSrcweir ret = pthread_cond_timedwait(&pCond->m_Condition, &pCond->m_Lock, &to); 251*cdf0e10cSrcweir if ( ret != 0 ) 252*cdf0e10cSrcweir { 253*cdf0e10cSrcweir if ( ret == ETIME || ret == ETIMEDOUT ) 254*cdf0e10cSrcweir { 255*cdf0e10cSrcweir Result = osl_cond_result_timeout; 256*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 257*cdf0e10cSrcweir if (nRet != 0) 258*cdf0e10cSrcweir { 259*cdf0e10cSrcweir OSL_TRACE("osl_waitCondition : mutex unlock failed. Errno: %d; %s\n", 260*cdf0e10cSrcweir nRet, strerror(nRet)); 261*cdf0e10cSrcweir } 262*cdf0e10cSrcweir 263*cdf0e10cSrcweir return Result; 264*cdf0e10cSrcweir } 265*cdf0e10cSrcweir else if ( ret != EINTR ) 266*cdf0e10cSrcweir { 267*cdf0e10cSrcweir Result = osl_cond_result_error; 268*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 269*cdf0e10cSrcweir if ( nRet != 0 ) 270*cdf0e10cSrcweir { 271*cdf0e10cSrcweir OSL_TRACE("osl_waitCondition : mutex unlock failed. Errno: %d; %s\n", 272*cdf0e10cSrcweir nRet, strerror(nRet)); 273*cdf0e10cSrcweir } 274*cdf0e10cSrcweir return Result; 275*cdf0e10cSrcweir } 276*cdf0e10cSrcweir /* OSL_TRACE("EINTR\n");*/ 277*cdf0e10cSrcweir } 278*cdf0e10cSrcweir } 279*cdf0e10cSrcweir while ( !pCond->m_State ); 280*cdf0e10cSrcweir } 281*cdf0e10cSrcweir } 282*cdf0e10cSrcweir else 283*cdf0e10cSrcweir { 284*cdf0e10cSrcweir while ( !pCond->m_State ) 285*cdf0e10cSrcweir { 286*cdf0e10cSrcweir nRet = pthread_cond_wait(&pCond->m_Condition, &pCond->m_Lock); 287*cdf0e10cSrcweir if ( nRet != 0 ) 288*cdf0e10cSrcweir { 289*cdf0e10cSrcweir OSL_TRACE("osl_waitCondition : condition wait failed. Errno: %d; %s\n", 290*cdf0e10cSrcweir nRet, strerror(nRet)); 291*cdf0e10cSrcweir Result = osl_cond_result_error; 292*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 293*cdf0e10cSrcweir if ( nRet != 0 ) 294*cdf0e10cSrcweir { 295*cdf0e10cSrcweir OSL_TRACE("osl_waitCondition : mutex unlock failed. Errno: %d; %s\n", 296*cdf0e10cSrcweir nRet, strerror(nRet)); 297*cdf0e10cSrcweir } 298*cdf0e10cSrcweir 299*cdf0e10cSrcweir return Result; 300*cdf0e10cSrcweir } 301*cdf0e10cSrcweir } 302*cdf0e10cSrcweir } 303*cdf0e10cSrcweir 304*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 305*cdf0e10cSrcweir if ( nRet != 0 ) 306*cdf0e10cSrcweir { 307*cdf0e10cSrcweir OSL_TRACE("osl_waitCondition : mutex unlock failed. Errno: %d; %s\n", 308*cdf0e10cSrcweir nRet, strerror(nRet)); 309*cdf0e10cSrcweir } 310*cdf0e10cSrcweir 311*cdf0e10cSrcweir return Result; 312*cdf0e10cSrcweir } 313*cdf0e10cSrcweir 314*cdf0e10cSrcweir /*****************************************************************************/ 315*cdf0e10cSrcweir /* osl_checkCondition */ 316*cdf0e10cSrcweir /*****************************************************************************/ 317*cdf0e10cSrcweir sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition) 318*cdf0e10cSrcweir { 319*cdf0e10cSrcweir sal_Bool State; 320*cdf0e10cSrcweir oslConditionImpl* pCond; 321*cdf0e10cSrcweir int nRet=0; 322*cdf0e10cSrcweir 323*cdf0e10cSrcweir OSL_ASSERT(Condition); 324*cdf0e10cSrcweir pCond = (oslConditionImpl*)Condition; 325*cdf0e10cSrcweir 326*cdf0e10cSrcweir if ( pCond == 0 ) 327*cdf0e10cSrcweir { 328*cdf0e10cSrcweir return sal_False; 329*cdf0e10cSrcweir } 330*cdf0e10cSrcweir 331*cdf0e10cSrcweir nRet = pthread_mutex_lock(&pCond->m_Lock); 332*cdf0e10cSrcweir if ( nRet != 0 ) 333*cdf0e10cSrcweir { 334*cdf0e10cSrcweir OSL_TRACE("osl_checkCondition : mutex unlock failed. Errno: %d; %s\n", 335*cdf0e10cSrcweir nRet, strerror(nRet)); 336*cdf0e10cSrcweir } 337*cdf0e10cSrcweir 338*cdf0e10cSrcweir State = pCond->m_State; 339*cdf0e10cSrcweir 340*cdf0e10cSrcweir nRet = pthread_mutex_unlock(&pCond->m_Lock); 341*cdf0e10cSrcweir if ( nRet != 0 ) 342*cdf0e10cSrcweir { 343*cdf0e10cSrcweir OSL_TRACE("osl_checkCondition : mutex unlock failed. Errno: %d; %s\n", 344*cdf0e10cSrcweir nRet, strerror(nRet)); 345*cdf0e10cSrcweir } 346*cdf0e10cSrcweir 347*cdf0e10cSrcweir return State; 348*cdf0e10cSrcweir } 349*cdf0e10cSrcweir 350*cdf0e10cSrcweir 351