TCPSocket.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 #include "mbed.h"
00024 #include "TCPSocket.h"
00025 #include "if/net/nettcpsocket.h"
00026 
00027 TCPSocket::TCPSocket() : m_pNetTcpSocket(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL)
00028 {
00029 
00030 }
00031 
00032 TCPSocket::TCPSocket(NetTcpSocket* pNetTcpSocket) : m_pNetTcpSocket(pNetTcpSocket), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL)
00033 {
00034   m_pNetTcpSocket->setOnEvent(this, &TCPSocket::onNetTcpSocketEvent);
00035 }
00036 
00037 TCPSocket::~TCPSocket() //close()
00038 {
00039   close();
00040 }
00041   
00042 TCPSocketErr TCPSocket::bind(const Host& me)
00043 {
00044     printf("Enter TCPSocket::bind()\r\n");
00045   TCPSocketErr tcpSocketErr = checkInst();
00046   if(tcpSocketErr)
00047     return tcpSocketErr;
00048   return (TCPSocketErr) m_pNetTcpSocket->bind(me); 
00049 }
00050 
00051 TCPSocketErr TCPSocket::listen()
00052 {
00053   printf("Enter TCPSocket::listen()\r\n");
00054   TCPSocketErr tcpSocketErr = checkInst();
00055   if(tcpSocketErr)
00056     return tcpSocketErr;
00057   return (TCPSocketErr) m_pNetTcpSocket->listen(); 
00058 }
00059 
00060 TCPSocketErr TCPSocket::connect(const Host& host)
00061 {
00062     printf("Enter TCPSocket::connect()\r\n");
00063   TCPSocketErr tcpSocketErr = checkInst();
00064   if(tcpSocketErr)
00065     return tcpSocketErr;
00066   return (TCPSocketErr) m_pNetTcpSocket->connect(host); 
00067 }
00068 
00069 TCPSocketErr TCPSocket::accept(Host* pClient, TCPSocket** ppNewTCPSocket)
00070 {
00071     printf("Enter TCPSocket::accept()\r\n");
00072   TCPSocketErr tcpSocketErr = checkInst();
00073   if(tcpSocketErr)
00074     return tcpSocketErr;
00075   NetTcpSocket* pNewNetTcpSocket;
00076   tcpSocketErr = (TCPSocketErr) m_pNetTcpSocket->accept(pClient, &pNewNetTcpSocket);
00077   if(pNewNetTcpSocket)
00078     *ppNewTCPSocket = new TCPSocket(pNewNetTcpSocket);
00079   return tcpSocketErr;
00080 }
00081   
00082 int /*if < 0 : TCPSocketErr*/ TCPSocket::send(const char* buf, int len)
00083 {
00084     printf("Enter TCPSocket::send()\r\n");
00085   TCPSocketErr tcpSocketErr = checkInst();
00086   if(tcpSocketErr)
00087     return tcpSocketErr;
00088   return m_pNetTcpSocket->send(buf, len);  
00089 }
00090 
00091 int /*if < 0 : TCPSocketErr*/ TCPSocket::recv(char* buf, int len)
00092 {
00093     printf("Enter TCPSocket::receive()\r\n");
00094   TCPSocketErr tcpSocketErr = checkInst();
00095   if(tcpSocketErr)
00096     return tcpSocketErr;
00097   return m_pNetTcpSocket->recv(buf, len);
00098 }
00099 
00100 TCPSocketErr TCPSocket::close()
00101 {
00102     printf("Enter TCPSocket::close()\r\n");
00103   if(!m_pNetTcpSocket)
00104     return TCPSOCKET_SETUP;
00105   m_pNetTcpSocket->resetOnEvent();
00106   TCPSocketErr tcpSocketErr = (TCPSocketErr) m_pNetTcpSocket->close(); //Close (can already be closed)
00107   Net::releaseTcpSocket(m_pNetTcpSocket); //And release it so it can be freed when properly removed
00108   m_pNetTcpSocket = NULL;
00109   return tcpSocketErr;
00110 }
00111 
00112 //Callbacks
00113 void TCPSocket::setOnEvent( void (*pMethod)(TCPSocketEvent) )
00114 {
00115     printf("Enter TCPSocket::setOnEvent()\r\n");
00116   m_pCb = pMethod;
00117 }
00118 
00119 #if 0 //For info only
00120 template<class T> 
00121 void TCPSocket::setOnEvent( T* pItem, void (T::*pMethod)(TCPSocketEvent) )
00122 {
00123     printf("Enter TCPSocket::setOnEvent()\r\n");
00124   m_pCbItem = (CDummy*) pItem;
00125   m_pCbMeth = (void (CDummy::*)(TCPSocketEvent)) pMethod;
00126 }
00127 #endif
00128   
00129 void TCPSocket::resetOnEvent() //Disable callback
00130 {
00131     printf("Enter TCPSocket::resetOnEvent()\r\n");
00132   m_pCb = NULL;
00133   m_pCbItem = NULL;
00134   m_pCbMeth = NULL;
00135 }
00136 
00137 void TCPSocket::onNetTcpSocketEvent(NetTcpSocketEvent e)
00138 {
00139     printf("Enter TCPSocket::onNetTcpSpcketEvent()\r\n");
00140   if(m_pCbItem && m_pCbMeth)
00141     (m_pCbItem->*m_pCbMeth)((TCPSocketEvent) e);
00142   else if(m_pCb)
00143     m_pCb((TCPSocketEvent) e);
00144 }
00145 
00146 TCPSocketErr TCPSocket::checkInst()
00147 {
00148     printf("Enter TCPSocket::checkInst()\r\n");
00149   if(!m_pNetTcpSocket)
00150   {
00151     m_pNetTcpSocket = Net::tcpSocket();
00152     if(!m_pNetTcpSocket)
00153     {
00154       return TCPSOCKET_IF; //Interface did not return a socket (usually because a default interface does not exist)
00155     }
00156     printf("!m_pNetTcpSocket\r\n");
00157     m_pNetTcpSocket->setOnEvent(this, &TCPSocket::onNetTcpSocketEvent);
00158   }
00159   return TCPSOCKET_OK;
00160 }