Diff: LPC2368/if/net/netudpsocket.h
- Revision:
- 0:0f5a52711275
diff -r 000000000000 -r 0f5a52711275 LPC2368/if/net/netudpsocket.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/LPC2368/if/net/netudpsocket.h Fri Jul 09 15:24:33 2010 +0000
@@ -0,0 +1,106 @@
+
+/*
+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 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
Donatien Garnier