Lorcan Smith
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Enet_SPI
SNMP agent attached to SPI slave
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UDPSocket.cpp
00001 00002 /* 00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) 00004 00005 Permission is hereby granted, free of charge, to any person obtaining a copy 00006 of this software and associated documentation files (the "Software"), to deal 00007 in the Software without restriction, including without limitation the rights 00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00009 copies of the Software, and to permit persons to whom the Software is 00010 furnished to do so, subject to the following conditions: 00011 00012 The above copyright notice and this permission notice shall be included in 00013 all copies or substantial portions of the Software. 00014 00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00021 THE SOFTWARE. 00022 */ 00023 00024 #include "UDPSocket.h" 00025 #include "if/net/netudpsocket.h" 00026 00027 UDPSocket::UDPSocket() : m_pNetUdpSocket(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL) 00028 { 00029 00030 } 00031 00032 UDPSocket::~UDPSocket() //close() 00033 { 00034 close(); 00035 } 00036 00037 UDPSocketErr UDPSocket::bind(const Host& me) 00038 { 00039 UDPSocketErr udpSocketErr = checkInst(); 00040 if(udpSocketErr) 00041 return udpSocketErr; 00042 return (UDPSocketErr) m_pNetUdpSocket->bind(me); 00043 } 00044 00045 int /*if < 0 : UDPSocketErr*/ UDPSocket::sendto(const char* buf, int len, Host* pHost) 00046 { 00047 UDPSocketErr udpSocketErr = checkInst(); 00048 if(udpSocketErr) 00049 return udpSocketErr; 00050 return m_pNetUdpSocket->sendto(buf, len, pHost); 00051 } 00052 00053 int /*if < 0 : UDPSocketErr*/ UDPSocket::recvfrom(char* buf, int len, Host* pHost) 00054 { 00055 UDPSocketErr udpSocketErr = checkInst(); 00056 if(udpSocketErr) 00057 return udpSocketErr; 00058 return m_pNetUdpSocket->recvfrom(buf, len, pHost); 00059 } 00060 00061 UDPSocketErr UDPSocket::close() 00062 { 00063 if(!m_pNetUdpSocket) 00064 return UDPSOCKET_SETUP; 00065 m_pNetUdpSocket->resetOnEvent(); 00066 UDPSocketErr udpSocketErr = (UDPSocketErr) m_pNetUdpSocket->close(); //Close (can already be closed) 00067 Net::releaseUdpSocket(m_pNetUdpSocket); //And release it so it can be freed when properly removed 00068 m_pNetUdpSocket = NULL; 00069 return udpSocketErr; 00070 } 00071 00072 //Callbacks 00073 void UDPSocket::setOnEvent( void (*pMethod)(UDPSocketEvent) ) 00074 { 00075 m_pCb = pMethod; 00076 } 00077 00078 #if 0 //For info only 00079 template<class T> 00080 void UDPSocket::setOnEvent( T* pItem, void (T::*pMethod)(UDPSocketEvent) ) 00081 { 00082 m_pCbItem = (CDummy*) pItem; 00083 m_pCbMeth = (void (CDummy::*)(UDPSocketEvent)) pMethod; 00084 } 00085 #endif 00086 00087 void UDPSocket::resetOnEvent() //Disable callback 00088 { 00089 m_pCb = NULL; 00090 m_pCbItem = NULL; 00091 m_pCbMeth = NULL; 00092 } 00093 00094 void UDPSocket::onNetUdpSocketEvent(NetUdpSocketEvent e) 00095 { 00096 if(m_pCbItem && m_pCbMeth) 00097 (m_pCbItem->*m_pCbMeth)((UDPSocketEvent) e); 00098 else if(m_pCb) 00099 m_pCb((UDPSocketEvent) e); 00100 } 00101 00102 UDPSocketErr UDPSocket::checkInst() 00103 { 00104 if(!m_pNetUdpSocket) 00105 { 00106 m_pNetUdpSocket = Net::udpSocket(); 00107 if(!m_pNetUdpSocket) 00108 { 00109 return UDPSOCKET_IF; //Interface did not return a socket (usually because a default interface does not exist) 00110 } 00111 m_pNetUdpSocket->setOnEvent(this, &UDPSocket::onNetUdpSocketEvent); 00112 } 00113 return UDPSOCKET_OK; 00114 }
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