![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Embedded C project:18/12/2014
Dependencies: DS1307 TextLCD mbed
Diff: NetServices/if/net/nettcpsocket.h
- Revision:
- 0:8d87bc453349
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NetServices/if/net/nettcpsocket.h Thu Dec 18 09:35:49 2014 +0000 @@ -0,0 +1,118 @@ + +/* +Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#ifndef NETTCPSOCKET_H +#define NETTCPSOCKET_H + +#include "net.h" +#include "host.h" + +#include <queue> +using std::queue; + +//Implements a Berkeley-like socket if +//Can be interfaced either to lwip or a Telit module + +enum NetTcpSocketErr +{ + __NETTCPSOCKET_MIN = -0xFFFF, + NETTCPSOCKET_SETUP, //NetTcpSocket not properly configured + NETTCPSOCKET_TIMEOUT, + NETTCPSOCKET_IF, //If has problems + NETTCPSOCKET_MEM, //Not enough mem + NETTCPSOCKET_INUSE, //If/Port is in use + NETTCPSOCKET_EMPTY, //Connections queue is empty + NETTCPSOCKET_RST, // Connection was reset by remote host +//... + NETTCPSOCKET_OK = 0 +}; + +enum NetTcpSocketEvent +{ + NETTCPSOCKET_CONNECTED, //Connected to host, must call accept() if we were listening + NETTCPSOCKET_ACCEPT, //Connected to client + NETTCPSOCKET_READABLE, //Data in buf + NETTCPSOCKET_WRITEABLE, //Can write data to buf + NETTCPSOCKET_CONTIMEOUT, + NETTCPSOCKET_CONRST, + NETTCPSOCKET_CONABRT, + NETTCPSOCKET_ERROR, + NETTCPSOCKET_DISCONNECTED +}; + + +class NetTcpSocket +{ +public: + NetTcpSocket(); + virtual ~NetTcpSocket(); //close() + + virtual NetTcpSocketErr bind(const Host& me) = 0; + virtual NetTcpSocketErr listen() = 0; + virtual NetTcpSocketErr connect(const Host& host) = 0; + virtual NetTcpSocketErr accept(Host* pClient, NetTcpSocket** ppNewNetTcpSocket) = 0; + + virtual int /*if < 0 : NetTcpSocketErr*/ send(const char* buf, int len) = 0; + virtual int /*if < 0 : NetTcpSocketErr*/ recv(char* buf, int len) = 0; + + virtual NetTcpSocketErr close() = 0; + + virtual NetTcpSocketErr poll() = 0; + + class CDummy; + //Callbacks + template<class T> + //Linker bug : Must be defined here :( + void setOnEvent( T* pItem, void (T::*pMethod)(NetTcpSocketEvent) ) + { + m_pCbItem = (CDummy*) pItem; + m_pCbMeth = (void (CDummy::*)(NetTcpSocketEvent)) pMethod; + } + + void resetOnEvent(); //Disable callback + +protected: + void queueEvent(NetTcpSocketEvent e); + void discardEvents(); + void flushEvents(); //to be called during polling + + Host m_host; + Host m_client; + + friend class Net; + int m_refs; + + bool m_closed; + bool m_removed; + +private: + //We do not want to execute user code in interrupt routines, so we queue events until the server is polled + //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) ) + void onEvent(NetTcpSocketEvent e); //To be called on poll + CDummy* m_pCbItem; + void (CDummy::*m_pCbMeth)(NetTcpSocketEvent); + queue<NetTcpSocketEvent> m_events; + +}; + +#endif