Lock.cxx

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#include "rutil/Lock.hxx"


using resip::Lock;
using resip::ReadLock;
using resip::WriteLock;
using resip::PtrLock;

using resip::LockType;
using resip::Lockable;


static inline void takeLock(Lockable& lockable, LockType lockType) {
   switch ( lockType )
    {
       case resip::VOCAL_READLOCK:
       {
          lockable.readlock();
          break;
       }
            
       case resip::VOCAL_WRITELOCK:
       {
          lockable.writelock();
          break;
       }
       
       default:
       {
          lockable.lock();
          break;
       }
    }
}

Lock::Lock(Lockable & lockable, LockType lockType)
   : myLockable(lockable)
{
   takeLock(lockable, lockType);
}

Lock::~Lock()
{
    myLockable.unlock();
}

ReadLock::ReadLock(Lockable & lockable)
   : Lock(lockable, VOCAL_READLOCK)
{
}

WriteLock::WriteLock(Lockable & lockable)
   : Lock(lockable, VOCAL_WRITELOCK)
{
}


PtrLock::PtrLock(Lockable* lockable, LockType lockType)
   : myLockable(lockable)
{
   if (lockable)
      takeLock(*lockable, lockType);
}

PtrLock::~PtrLock()
{
    if (myLockable)
        myLockable->unlock();
}

/* ====================================================================
 * 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
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY 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
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 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */