Scale Stack 0.3 Developer Documentation

scalestack/threading/pthreads/mutex_provider.cc

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/*
 * Scale Stack
 *
 * Copyright 2010 Eric Day
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "config.h"

#include <cstring>

#include <scalestack/kernel/module.h>
#include <scalestack/threading/pthreads/mutex_provider.h>

namespace scalestack
{
namespace threading
{
namespace pthreads
{

/*
 * Public methods.
 */

mutex_provider::mutex_provider(kernel::module& module, mutex& mutex):
  threading::mutex_provider(module, mutex),
  _mutex()
{
  int return_code = pthread_mutex_init(&_mutex, NULL);
  if (return_code != 0)
  {
    _module.log_fatal(_("Failed pthread_mutex_init: %s:%d"),
                      strerror(return_code), return_code);
  }
}

mutex_provider::~mutex_provider()
{
  int return_code = pthread_mutex_destroy(&_mutex);
  if (return_code != 0)
  {
    _module.log_error(_("Failed pthread_mutex_destroy: %s:%d"),
                      strerror(return_code), return_code);
  }
}

void mutex_provider::lock(void)
{
  int return_code = pthread_mutex_lock(&_mutex);
  if (return_code != 0)
  {
    _module.log_fatal(_("Failed pthread_mutex_lock: %s:%d"),
                      strerror(return_code), return_code);
  }
}

void mutex_provider::unlock(void)
{
  int return_code = pthread_mutex_unlock(&_mutex);
  if (return_code != 0)
  {
    _module.log_fatal(_("Failed pthread_mutex_unlock: %s:%d"),
                      strerror(return_code), return_code);
  }
}

} /* namespace pthreads */
} /* namespace threading */
} /* namespace scalestack */

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