mutex.cc

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00001 /** @file rutz/mutex.cc */
00002 
00003 ///////////////////////////////////////////////////////////////////////
00004 //
00005 // Copyright (c) 2005-2007 University of Southern California
00006 // Rob Peters <rjpeters at usc dot edu>
00007 //
00008 // created: Fri Mar 30 10:25:47 2007
00009 // commit: $Id: mutex.cc 9324 2008-02-25 22:05:55Z rjpeters $
00010 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/rutz/mutex.cc $
00011 //
00012 // --------------------------------------------------------------------
00013 //
00014 // This file is part of GroovX.
00015 //   [http://www.klab.caltech.edu/rjpeters/groovx/]
00016 //
00017 // GroovX is free software; you can redistribute it and/or modify it
00018 // under the terms of the GNU General Public License as published by
00019 // the Free Software Foundation; either version 2 of the License, or
00020 // (at your option) any later version.
00021 //
00022 // GroovX is distributed in the hope that it will be useful, but
00023 // WITHOUT ANY WARRANTY; without even the implied warranty of
00024 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00025 // General Public License for more details.
00026 //
00027 // You should have received a copy of the GNU General Public License
00028 // along with GroovX; if not, write to the Free Software Foundation,
00029 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
00030 //
00031 ///////////////////////////////////////////////////////////////////////
00032 
00033 #ifndef GROOVX_RUTZ_MUTEX_CC_UTC20070330172547_DEFINED
00034 #define GROOVX_RUTZ_MUTEX_CC_UTC20070330172547_DEFINED
00035 
00036 #include "rutz/mutex.h"
00037 
00038 #include "rutz/abort.h"
00039 
00040 rutz::mutex_lock_class::mutex_lock_class(pthread_mutex_t* mut)
00041   : m_mutex(mut)
00042 {
00043   if (m_mutex)
00044     {
00045       if (pthread_mutex_lock(m_mutex) != 0)
00046         GVX_ABORT("pthread_mutex_lock failed");
00047     }
00048 }
00049 
00050 void rutz::mutex_lock_class::unlock() throw()
00051 {
00052   if (m_mutex)
00053     {
00054       pthread_mutex_unlock(m_mutex);
00055       m_mutex = 0;
00056     }
00057 }
00058 
00059 static const char vcid_groovx_rutz_mutex_cc_utc20070330172547[] = "$Id: mutex.cc 9324 2008-02-25 22:05:55Z rjpeters $ $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/rutz/mutex.cc $";
00060 #endif // !GROOVX_RUTZ_MUTEX_CC_UTC20070330172547DEFINED
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