Mutex.cxx

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/*
namespace std
{
typedef wchar_t wint_t;
typedef unsigned int size_t;
}

*/
#include <cassert>
#include <cerrno>
#include "rutil/Mutex.hxx"

#if defined(WIN32)
#  include <windows.h>
#  include <winbase.h>
#else
#  include <pthread.h>
#endif

using namespace resip;

Mutex::Mutex()
{
#ifndef WIN32
    int  rc = pthread_mutex_init(&mId,0);
    (void)rc;
    assert( rc == 0 );
#else
        // Note:  Windows Critical sections are recursive in nature and perhaps
        //        this implementation calls for a non-recursive implementation
        //        (since there also exists a RecursiveMutex class).  The effort
        //        to make this non-recursive just doesn't make sense though. (SLG)
        InitializeCriticalSection(&mId);
#endif
}


Mutex::~Mutex ()
{
#ifndef WIN32
    int  rc = pthread_mutex_destroy(&mId);
    (void)rc;
    assert( rc != EBUSY );  // currently locked 
    assert( rc == 0 );
#else
        DeleteCriticalSection(&mId);
#endif
}


void
Mutex::lock()
{
#ifndef WIN32
    int  rc = pthread_mutex_lock(&mId);
    (void)rc;
    assert( rc != EINVAL );
    assert( rc != EDEADLK );
    assert( rc == 0 );
#else
        EnterCriticalSection(&mId);
#endif
}

void
Mutex::unlock()
{
#ifndef WIN32
    int  rc = pthread_mutex_unlock(&mId);
    (void)rc;
    assert( rc != EINVAL );
    assert( rc != EPERM );
    assert( rc == 0 );
#else
        LeaveCriticalSection(&mId);
#endif
}

#ifndef WIN32
pthread_mutex_t*
Mutex::getId() const
{
    return ( &mId );
}
#endif


/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. 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.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact vocal@vovida.org.
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
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 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
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 * Inc.  For more information on Vovida Networks, Inc., please see
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