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      1 ///////////////////////////////////////////////////////////////////////////
      2 //
      3 // Copyright (c) 2005, Industrial Light & Magic, a division of Lucas
      4 // Digital Ltd. LLC
      5 //
      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 // *       Redistributions of source code must retain the above copyright
     12 // notice, this list of conditions and the following disclaimer.
     13 // *       Redistributions in binary form must reproduce the above
     14 // copyright notice, this list of conditions and the following disclaimer
     15 // in the documentation and/or other materials provided with the
     16 // distribution.
     17 // *       Neither the name of Industrial Light & Magic nor the names of
     18 // its contributors may be used to endorse or promote products derived
     19 // from this software without specific prior written permission.
     20 //
     21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32 //
     33 ///////////////////////////////////////////////////////////////////////////
     34 
     35 //-----------------------------------------------------------------------------
     36 //
     37 //	class Mutex -- implementation for Windows
     38 //
     39 //-----------------------------------------------------------------------------
     40 
     41 #include "IlmThreadMutex.h"
     42 #include "Iex.h"
     43 
     44 namespace IlmThread {
     45 
     46 
     47 Mutex::Mutex ()
     48 {
     49     ::InitializeCriticalSection (&_mutex);
     50 }
     51 
     52 
     53 Mutex::~Mutex ()
     54 {
     55     ::DeleteCriticalSection (&_mutex);
     56 }
     57 
     58 
     59 void
     60 Mutex::lock () const
     61 {
     62     ::EnterCriticalSection (&_mutex);
     63 }
     64 
     65 
     66 void
     67 Mutex::unlock () const
     68 {
     69     ::LeaveCriticalSection (&_mutex);
     70 }
     71 
     72 
     73 } // namespace IlmThread
     74