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libsfml  1.6+dfsg2
SocketHelper.cpp
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00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00026 // Headers
00028 #include <SFML/Network/SocketHelper.hpp>
00029 
00030 
00031 namespace sf
00032 {
00036 SocketHelper::SocketType SocketHelper::InvalidSocket()
00037 {
00038     return INVALID_SOCKET;
00039 }
00040 
00041 
00045 bool SocketHelper::Close(SocketHelper::SocketType Socket)
00046 {
00047     return closesocket(Socket) != -1;
00048 }
00049 
00050 
00054 void SocketHelper::SetBlocking(SocketHelper::SocketType Socket, bool Block)
00055 {
00056     unsigned long Blocking = Block ? 0 : 1;
00057     ioctlsocket(Socket, FIONBIO, &Blocking);
00058 }
00059 
00060 
00064 Socket::Status SocketHelper::GetErrorStatus()
00065 {
00066     switch (WSAGetLastError())
00067     {
00068         case WSAEWOULDBLOCK :  return Socket::NotReady;
00069         case WSAECONNABORTED : return Socket::Disconnected;
00070         case WSAECONNRESET :   return Socket::Disconnected;
00071         case WSAETIMEDOUT :    return Socket::Disconnected;
00072         case WSAENETRESET :    return Socket::Disconnected;
00073         case WSAENOTCONN :     return Socket::Disconnected;
00074         default :              return Socket::Error;
00075     }
00076 }
00077 
00078 
00080 // Windows needs some initialization and cleanup to get
00081 // sockets working properly... so let's create a class that will
00082 // do it automatically
00084 struct SocketInitializer
00085 {
00086     SocketInitializer()
00087     {
00088         WSADATA InitData;
00089         WSAStartup(MAKEWORD(2,2), &InitData);
00090     }
00091 
00092     ~SocketInitializer()
00093     {
00094         WSACleanup();
00095     }
00096 };
00097 
00098 SocketInitializer GlobalInitializer;
00099 
00100 } // namespace sf