Subversion Repositories openrisc

// condition_variable -*- C++ -*-

// Copyright (C) 2008, 2009 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.

#include <condition_variable>

#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)

namespace std

{

  condition_variable::condition_variable() throw ()

  {

#ifdef __GTHREAD_COND_INIT

    __native_type __tmp = __GTHREAD_COND_INIT;

    _M_cond = __tmp;

#else

    int __e = __gthread_cond_init(&_M_cond, NULL);

    if (__e)

      __throw_system_error(__e);

#endif

  }

  condition_variable::~condition_variable() throw ()

  {

    // XXX no thread blocked

    /* int __e = */ __gthread_cond_destroy(&_M_cond);

    // if __e == EBUSY then blocked

  }

  void

  condition_variable::wait(unique_lock<mutex>& __lock)

  {

    int __e = __gthread_cond_wait(&_M_cond, __lock.mutex()->native_handle());

    if (__e)

      __throw_system_error(__e);

  }

  void

  condition_variable::notify_one()

  {

    int __e = __gthread_cond_signal(&_M_cond);

    // XXX not in spec

    // EINVAL

    if (__e)

      __throw_system_error(__e);

  }

  void

  condition_variable::notify_all()

  {

    int __e = __gthread_cond_broadcast(&_M_cond);

    // XXX not in spec

    // EINVAL

    if (__e)

      __throw_system_error(__e);

  }

  condition_variable_any::condition_variable_any() throw ()

  { }

  condition_variable_any::~condition_variable_any() throw ()

  { }

}

#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1