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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 #include <errno.h>
00030 #include <fcntl.h>
00031 
00032 
00033 namespace sf
00034 {
00038 SocketHelper::SocketType SocketHelper::InvalidSocket()
00039 {
00040     return -1;
00041 }
00042 
00043 
00047 bool SocketHelper::Close(SocketHelper::SocketType Socket)
00048 {
00049     return close(Socket) != -1;
00050 }
00051 
00052 
00056 void SocketHelper::SetBlocking(SocketHelper::SocketType Socket, bool Block)
00057 {
00058     int Status = fcntl(Socket, F_GETFL);
00059     if (Block)
00060         fcntl(Socket, F_SETFL, Status & ~O_NONBLOCK);
00061     else
00062         fcntl(Socket, F_SETFL, Status | O_NONBLOCK);
00063 }
00064 
00065 
00069 Socket::Status SocketHelper::GetErrorStatus()
00070 {
00071     // The followings are sometimes equal to EWOULDBLOCK,
00072     // so we have to make a special case for them in order
00073     // to avoid having double values in the switch case
00074     if ((errno == EAGAIN) || (errno == EINPROGRESS))
00075         return Socket::NotReady;
00076 
00077     switch (errno)
00078     {
00079         case EWOULDBLOCK :  return Socket::NotReady;
00080         case ECONNABORTED : return Socket::Disconnected;
00081         case ECONNRESET :   return Socket::Disconnected;
00082         case ETIMEDOUT :    return Socket::Disconnected;
00083         case ENETRESET :    return Socket::Disconnected;
00084         case ENOTCONN :     return Socket::Disconnected;
00085         default :           return Socket::Error;
00086     }
00087 }
00088 
00089 } // namespace sf