1 #ifndef COIN_SBTHREADMUTEX_H 2 #define COIN_SBTHREADMUTEX_H 3 4 /**************************************************************************\ 5 * Copyright (c) Kongsberg Oil & Gas Technologies AS 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 11 * 12 * Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * Neither the name of the copyright holder nor the names of its 20 * contributors may be used to endorse or promote products derived from 21 * this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 \**************************************************************************/ 35 36 #include <Inventor/SbBasic.h> 37 #include <Inventor/C/threads/recmutex.h> 38 39 class SbThreadMutex { 40 public: SbThreadMutex(void)41 SbThreadMutex(void) { this->mutex = cc_recmutex_construct(); } ~SbThreadMutex()42 ~SbThreadMutex() { cc_recmutex_destruct(this->mutex); } 43 lock(void)44 int lock(void) { 45 return cc_recmutex_lock(this->mutex); 46 } 47 tryLock(void)48 SbBool tryLock(void) { 49 return cc_recmutex_try_lock(this->mutex) == CC_OK; 50 } 51 unlock(void)52 int unlock(void) { 53 return cc_recmutex_unlock(this->mutex); 54 } 55 56 private: 57 // FIXME: we need access to C mutex structur. Should we use friend, 58 // or should we add a new public method to get to this structure? 59 // pederb, 2002-06-26 60 friend class SbCondVar; 61 cc_recmutex * mutex; 62 }; 63 64 65 #ifndef COIN_INTERNAL 66 // For TGS Inventor compile-time compatibility. 67 #include <Inventor/threads/SbThreadAutoLock.h> 68 #endif // COIN_INTERNAL 69 70 #endif // !COIN_SBTHREADMUTEX_H 71