traits.hpp

Go to the documentation of this file.

/*
 * Copyright (c) 2011, Willow Garage, 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:
 *
 *     * 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 the Willow Garage, Inc. 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.
 */
#pragma once

#include <boost/mpl/bool.hpp>
#include <ecto/python/gil.hpp>

namespace ecto {
  namespace detail {
    template <typename T> struct is_threadsafe : boost::mpl::true_ { };

    template <typename T> struct python_mutex 
    { 
      typedef ecto::py::nothing_to_lock type; 
    };
  }
}


#define ECTO_THREAD_UNSAFE(T)                                           \
  namespace ecto {                                                      \
    namespace detail {                                                  \
      template <> struct is_threadsafe<T> : boost::mpl::false_ { };     \
    }                                                                   \
  }                                                                     \


#define ECTO_NEEDS_PYTHON_GIL(T)                                        \
  namespace ecto {                                                      \
    namespace detail {                                                  \
      template <> struct python_mutex<T> {                              \
        typedef ecto::py::gil type;                                     \
      };                                                                \
    }                                                                   \
  }                                                                     \