Dependents: SimpleLCDClock readCard2Twitter_http AnalogClock_StepperMotor_NTP ServoCamV1
if/net/netudpsocket.h
- Committer:
- donatien
- Date:
- 2010-05-24
- Revision:
- 1:e52ec2a24c6a
- Parent:
- 0:3717b703f76d
- Child:
- 2:2dafdd154a9e
File content as of revision 1:e52ec2a24c6a:
/* Copyright (c) 2010 Donatien Garnier (donatiengar [dot] 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 NETUDPSOCKET_H #define NETUDPSOCKET_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 NetUdpSocketErr { __NETUDPSOCKET_MIN = -0xFFFF, NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured NETUDPSOCKET_IF, //If has problems NETUDPSOCKET_MEM, //Not enough mem NETUDPSOCKET_INUSE, //If/Port is in use //... NETUDPSOCKET_OK = 0 }; enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one! { NETUDPSOCKET_READABLE, //Data in buf }; class NetUdpSocket { public: NetUdpSocket(); virtual ~NetUdpSocket(); //close() virtual NetUdpSocketErr bind(const Host& me) = 0; virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0; virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0; /* TODO NTH : printf / scanf helpers that call send/recv */ virtual NetUdpSocketErr close() = 0; virtual NetUdpSocketErr poll() = 0; class CDummy; //Callbacks template<class T> //Linker bug : Must be defined here :( void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) ) { m_pCbItem = (CDummy*) pItem; m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod; } void resetOnEvent(); //Disable callback protected: void queueEvent(NetUdpSocketEvent 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(NetUdpSocketEvent e); //To be called on poll CDummy* m_pCbItem; void (CDummy::*m_pCbMeth)(NetUdpSocketEvent); queue<NetUdpSocketEvent> m_events; }; #endif