/* /////////////////////////////////////////////////////////////////////////
 * File:        acestl/network/socket_functions.hpp
 *
 * Purpose:     Helper functions for ACE_SOCK (and derived) classes
 *
 * Created:     28th November 2004
 * Updated:     10th August 2009
 *
 * Home:        http://stlsoft.org/
 *
 * Copyright (c) 2004-2009, Matthew Wilson and Synesis Software
 * 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(s) of Matthew Wilson and Synesis Software nor the names of
 *   any 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.
 *
 * ////////////////////////////////////////////////////////////////////// */


/** \file acestl/network/socket_functions.hpp
 *
 * \brief [C++ only; requires ACE] Socket helper functions
 *   (\ref group__library__network "Network" Library).
 */

#ifndef ACESTL_INCL_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS
#define ACESTL_INCL_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS

#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
# define ACESTL_VER_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS_MAJOR      2
# define ACESTL_VER_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS_MINOR      0
# define ACESTL_VER_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS_REVISION   2
# define ACESTL_VER_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS_EDIT       24
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */

/* /////////////////////////////////////////////////////////////////////////
 * Includes
 */

#ifndef ACESTL_INCL_ACESTL_HPP_ACESTL
# include <acestl/acestl.hpp>
#endif /* !ACESTL_INCL_ACESTL_HPP_ACESTL */

#ifndef STLSOFT_INCL_ACE_H_SOCK
# define STLSOFT_INCL_ACE_H_SOCK
# include <ace/SOCK.h>
#endif /* !STLSOFT_INCL_ACE_H_SOCK */
#ifndef STLSOFT_INCL_ACE_H_REACTOR
# define STLSOFT_INCL_ACE_H_REACTOR
# include <ace/Reactor.h>
#endif /* !STLSOFT_INCL_ACE_H_REACTOR */

/* /////////////////////////////////////////////////////////////////////////
 * Namespace
 */

#ifndef _ACESTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
     defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
/* There is no stlsoft namespace, so must define ::acestl */
namespace acestl
{
# else
/* Define stlsoft::acestl_project */

namespace stlsoft
{

namespace acestl_project
{

# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_ACESTL_NO_NAMESPACE */

/* /////////////////////////////////////////////////////////////////////////
 * Functions
 */

/** \brief Closes a socket and deregisters it from the reactor
 *
 * \ingroup group__library__network
 *
 * \param sk Reference to the socket to close
 * \param reactor Reactor from which the socket will be deregistered. May be
 *   NULL.
 *
 * \return true if the socket was previously closed, false otherwise. There
 *   is no error return
 *
 * Usage is simple. Just specify the socket to close and, optionally, the
 * reactor with which it is registered.
 *
\code

// close and deregister m_upstreamPeer and m_downstreamPeer (both ACE_SOCK_Stream)
acestl::close_and_deregister(m_peer, reactor());

\endcode
 */
inline as_bool_t close_and_deregister(ACE_SOCK &sk, ACE_Reactor *reactor)
{
    if(ACE_INVALID_HANDLE == sk.get_handle())
    {
        return false;
    }

    if(NULL != reactor)
    {
        const ACE_Reactor_Mask close_mask   =   ACE_Event_Handler::ALL_EVENTS_MASK
                                            |   ACE_Event_Handler::DONT_CALL;

        reactor->remove_handler(sk.get_handle(), close_mask);
    }

    sk.close();

    return true;
}

////////////////////////////////////////////////////////////////////////////
// Unit-testing

#ifdef STLSOFT_UNITTEST
# include "./unittest/socket_functions_unittest_.h"
#endif /* STLSOFT_UNITTEST */

/* ////////////////////////////////////////////////////////////////////// */

#ifndef _ACESTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
     defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
} // namespace acestl
# else
} // namespace acestl_project
} // namespace stlsoft
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_ACESTL_NO_NAMESPACE */

/* ////////////////////////////////////////////////////////////////////// */

#endif /* ACESTL_INCL_ACESTL_NETWORK_HPP_SOCKET_FUNCTIONS */

/* ///////////////////////////// end of file //////////////////////////// */