text: /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
  /*
   *  Main authors:
   *     Christian Schulte <schulte@gecode.org>
   *
   *  Copyright:
   *     Christian Schulte, 2009
   *
   *  This file is part of Gecode, the generic constraint
   *  development environment:
   *     http://www.gecode.org
   *
   *  Permission is hereby granted, free of charge, to any person obtaining
   *  a copy of this software and associated documentation files (the
   *  "Software"), to deal in the Software without restriction, including
   *  without limitation the rights to use, copy, modify, merge, publish,
   *  distribute, sublicense, and/or sell copies of the Software, and to
   *  permit persons to whom the Software is furnished to do so, subject to
   *  the following conditions:
   *
   *  The above copyright notice and this permission notice shall be
   *  included in all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   *
   */
  
  namespace Gecode { namespace Support {
  
    /*
     * Mutex
     */
    forceinline
    Mutex::Mutex(void) {
      InitializeCriticalSection(&w_cs);
    }
    forceinline void
    Mutex::acquire(void) {
      EnterCriticalSection(&w_cs);
    }
    forceinline bool
    Mutex::tryacquire(void) {
      return TryEnterCriticalSection(&w_cs) != 0;
    }
    forceinline void
    Mutex::release(void) {
      LeaveCriticalSection(&w_cs);
    }
    forceinline
    Mutex::~Mutex(void) {
      DeleteCriticalSection(&w_cs);
    }
  
  
    /*
     * Event
     */
    forceinline
    Event::Event(void)
      : w_h(CreateEvent(NULL, FALSE, FALSE, NULL)) {
      if (w_h == NULL)
        throw OperatingSystemError("Event::Event[Windows::CreateEvent]");
    }
    forceinline void
    Event::signal(void) {
      if (SetEvent(w_h) == 0)
        throw OperatingSystemError("Event::signal[Windows::SetEvent]");
    }
    forceinline void
    Event::wait(void) {
      if (WaitForSingleObject(w_h,INFINITE) != 0)
        throw OperatingSystemError("Event::wait[Windows::WaitForSingleObject]");
    }
  
    forceinline
    Event::~Event(void) {
      if (CloseHandle(w_h) == 0) {
        std::cerr << "Operating system error: "
                  << "Event::~Event[Windows::CloseHandle]";
        std::terminate();
      }
    }
  
  
    /*
     * Thread
     */
    forceinline void
    Thread::sleep(unsigned int ms) {
      Sleep(static_cast<DWORD>(ms));
    }
  
    forceinline unsigned int
    Thread::npu(void) {
      SYSTEM_INFO si;
      GetSystemInfo(&si);
      return static_cast<unsigned int>(si.dwNumberOfProcessors);
    }
  
  }}
  
  // STATISTICS: support-any
  