text: /*  Sirikata Network Utilities
   *  IOServicePool.cpp
   *
   *  Copyright (c) 2009, Daniel Reiter Horn
   *  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 Sirikata 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 OWNER
   * 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 <sirikata/core/util/Standard.hh>
  #include <sirikata/core/network/IOServicePool.hpp>
  #include <sirikata/core/network/IOService.hpp>
  #include <sirikata/core/network/IOServiceFactory.hpp>
  #include <sirikata/core/network/IOWork.hpp>
  #include <sirikata/core/util/Thread.hpp>
  
  namespace Sirikata {
  namespace Network {
  
  IOServicePool::IOServicePool(uint32 nthreads)
   : mIO(IOServiceFactory::makeIOService()),
     mThreads(nthreads, NULL),
     mWork(NULL)
  {
  }
  
  IOServicePool::~IOServicePool() {
      if (mWork) stopWork();
      for(ThreadList::iterator it = mThreads.begin(); it != mThreads.end(); it++)
          delete *it;
      IOServiceFactory::destroyIOService(mIO);
  }
  
  namespace {
  void runWrapper(IOService* ios) {
      ios->run();
  }
  }
  void IOServicePool::reset() {
      mIO->reset();
  }
  void IOServicePool::run() {
      for(ThreadList::iterator it = mThreads.begin(); it != mThreads.end(); it++)
          (*it) = new Thread( std::tr1::bind(runWrapper, mIO) );
  }
  
  void IOServicePool::join() {
      // Other threads won't work if they still have work
      stopWork();
  
      for(ThreadList::iterator it = mThreads.begin(); it != mThreads.end(); it++)
          (*it)->join();
  }
  
  void IOServicePool::startWork() {
      if (mWork) return;
      mWork = new IOWork(*mIO);
  }
  
  void IOServicePool::stopWork() {
      if (!mWork) return;
  
      delete mWork;
      mWork = NULL;
  }
  
  
  IOService* IOServicePool::service() {
      return mIO;
  }
  
  } // namespace Network
  } // namespace Sirikata
  