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SFML - Simple and Fast Multimedia Library

SFML v1.6

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SelectorBase.cpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila ([email protected])
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

#ifdef _MSC_VER
    #pragma warning(disable : 4127) // "conditional expression is constant" generated by the FD_SET macro
#endif

// Headers
#include <SFML/Network/SelectorBase.hpp>


namespace sf
{
SelectorBase::SelectorBase() :
myMaxSocket(0)
{
    Clear();
}


void SelectorBase::Add(SocketHelper::SocketType Socket)
{
    FD_SET(Socket, &mySet);

    int Size = static_cast<int>(Socket);
    if (Size > myMaxSocket)
        myMaxSocket = Size;
}


void SelectorBase::Remove(SocketHelper::SocketType Socket)
{
    FD_CLR(Socket, &mySet);
}


void SelectorBase::Clear()
{
    FD_ZERO(&mySet);
    FD_ZERO(&mySetReady);

    myMaxSocket = 0;
}


unsigned int SelectorBase::Wait(float Timeout)
{
    // Setup the timeout structure
    timeval Time;
    Time.tv_sec  = static_cast<long>(Timeout);
    Time.tv_usec = (static_cast<long>(Timeout * 1000) % 1000) * 1000;

    // Prepare the set of sockets to return
    mySetReady = mySet;

    // Wait until one of the sockets is ready for reading, or timeout is reached
    int NbSockets = select(myMaxSocket + 1, &mySetReady, NULL, NULL, Timeout > 0 ? &Time : NULL);

    return NbSockets >= 0 ? static_cast<unsigned int>(NbSockets) : 0;
}


SocketHelper::SocketType SelectorBase::GetSocketReady(unsigned int Index)
{
    // The standard FD_xxx interface doesn't define a direct access,
    // so we must go through the whole set to find the socket we're looking for
    for (int i = 0; i < myMaxSocket + 1; ++i)
    {
        if (FD_ISSET(i, &mySetReady))
        {
            // Current socket is ready, but is it the Index-th one ?
            if (Index > 0)
            {
                Index--;
            }
            else
            {
                return static_cast<SocketHelper::SocketType>(i);
            }
        }
    }

    // Invalid index : return an invalid socket
    return SocketHelper::InvalidSocket();
}

} // namespace sf

 ::  Copyright © 2007-2008 Laurent Gomila, all rights reserved  ::  Documentation generated by doxygen 1.5.2  :: 

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    • sf::Font
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  • GraphicsContext.hpp
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  • Image.hpp
  • ImageLoader.cpp
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  • IPAddress.hpp
  • Cocoa/Joystick.cpp
  • Template for new ports/Joystick.cpp
  • Win32/Joystick.cpp
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  • Template for new ports/Joystick.hpp
  • Win32/Joystick.hpp
  • Listener.cpp
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  • Lock.hpp
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  • Matrix3.hpp
  • Matrix3.inl
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  • Music.hpp
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  • Mutex.hpp
  • Win32/Mutex.hpp
  • Network.hpp
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  • Packet.cpp
  • Packet.hpp
  • Platform.cpp
  • Platform.hpp
  • Win32/Platform.hpp
  • PostFX.cpp
  • PostFX.hpp
  • Randomizer.cpp
  • Randomizer.hpp
  • Rect.hpp
  • Rect.inl
  • RenderTarget.cpp
  • RenderTarget.hpp
  • RenderWindow.cpp
  • RenderWindow.hpp
  • Resource.hpp
  • Resource.inl
  • ResourcePtr.inl
  • Selector.hpp
  • Selector.inl
  • SelectorBase.cpp
  • SelectorBase.hpp
  • SFML_Main.cpp
  • Shape.cpp
  • Shape.hpp
  • Sleep.cpp
  • Sleep.hpp
  • SocketHelper.cpp
  • SocketHelper.hpp
  • Win32/SocketHelper.hpp
  • Sockets.hpp
  • SocketTCP.cpp
  • SocketTCP.hpp
  • SocketUDP.cpp
  • SocketUDP.hpp
  • Sound.cpp
  • Sound.hpp
  • SoundBuffer.cpp
  • SoundBuffer.hpp
  • SoundBufferRecorder.cpp
  • SoundBufferRecorder.hpp
  • SoundFile.cpp
  • SoundFile.hpp
  • SoundFileDefault.cpp
  • SoundFileDefault.hpp
  • SoundFileOgg.cpp
  • SoundFileOgg.hpp
  • SoundRecorder.cpp
  • SoundRecorder.hpp
  • SoundStream.cpp
  • SoundStream.hpp
  • Sprite.cpp
  • Sprite.hpp
  • String.cpp
  • String.hpp
  • System.hpp
  • Thread.cpp
  • Thread.hpp
  • Win32/Thread.hpp
  • Unicode.cpp
  • Unicode.hpp
  • Unicode.inl
  • Vector2.hpp
  • Vector2.inl
  • Vector3.hpp
  • Vector3.inl
  • VideoMode.cpp
  • VideoMode.hpp
  • Cocoa/VideoModeSupport.cpp
  • Template for new ports/VideoModeSupport.cpp
  • Win32/VideoModeSupport.cpp
  • Cocoa/VideoModeSupport.hpp
  • Template for new ports/VideoModeSupport.hpp
  • VideoModeSupport.hpp
  • Win32/VideoModeSupport.hpp
  • View.cpp
  • View.hpp
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  • Window/Window.hpp
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  • WindowHandle.hpp
  • WindowImpl.cpp
  • WindowImpl.hpp
  • WindowImplCocoa.hpp
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  • WindowImplWin32.hpp
  • WindowImplXXX.cpp
  • WindowImplXXX.hpp
  • WindowListener.hpp
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  • WindowStyle.hpp

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