Source

Coin / include / Inventor / threads / SbMutex.h

Lars J. Aas 9814cbe 



Marius Kintel 3ba6b41 




























Lars J. Aas 9814cbe 


Lars J. Aas 8a9a9e4 
Lars J. Aas 9814cbe 


Lars J. Aas 5f3ee19 
Morten Eriksen c7a7583 
Peder Blekken babb6f0 
Peder Blekken 8022570 
Morten Eriksen c7a7583 



Peder Blekken babb6f0 
Morten Eriksen c7a7583 
Peder Blekken 8022570 

Peder Blekken babb6f0 
Morten Eriksen c7a7583 
Peder Blekken 8022570 
Morten Eriksen c7a7583 



Peder Blekken babb6f0 
Lars J. Aas 9814cbe 

Peder Blekken 3b3dc06 



Lars J. Aas 5f3ee19 
Lars J. Aas 9814cbe 

Peder Blekken 62c9753 





Lars J. Aas 29b4a4f 
#ifndef COIN_SBMUTEX_H
#define COIN_SBMUTEX_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/

#include <Inventor/SbBasic.h>
#include <Inventor/C/threads/mutex.h>

class SbMutex {
public:
  SbMutex(void) { this->mutex = cc_mutex_construct(); }
  ~SbMutex() { cc_mutex_destruct(this->mutex); }

  int lock(void) {
    cc_mutex_lock(this->mutex);
    /* Useless return, here just for compatibility with TGS'
       SbThreadMutex API: */
    return 0;
  }

  SbBool tryLock(void) {
    return cc_mutex_try_lock(this->mutex) == CC_OK;
  }

  int unlock(void) {
    cc_mutex_unlock(this->mutex);
    /* Useless return, here just for compatibility with TGS'
       SbThreadMutex API: */
    return 0;
  }

private:
  // FIXME: we need access to C mutex structur. Should we use friend,
  // or should we add a new public method to get to this structure?
  // pederb, 2002-06-26
  friend class SbCondVar;
  cc_mutex * mutex;
};


#ifndef COIN_INTERNAL
// For TGS Inventor compile-time compatibility.
#include <Inventor/threads/SbThreadAutoLock.h>
#endif // COIN_INTERNAL

#endif // !COIN_SBMUTEX_H