Donatien Garnier
Dependents: SimpleLCDClock readCard2Twitter_http AnalogClock_StepperMotor_NTP ServoCamV1
if/net/netudpsocket.h@0:3717b703f76d, 2010-05-24 (annotated)
- Committer:
- donatien
- Date:
- Mon May 24 10:23:42 2010 +0000
- Revision:
- 0:3717b703f76d
- Child:
- 1:e52ec2a24c6a
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| donatien | 0:3717b703f76d | 1 | #ifndef NETUDPSOCKET_H |
| donatien | 0:3717b703f76d | 2 | #define NETUDPSOCKET_H |
| donatien | 0:3717b703f76d | 3 | |
| donatien | 0:3717b703f76d | 4 | #include "net.h" |
| donatien | 0:3717b703f76d | 5 | #include "host.h" |
| donatien | 0:3717b703f76d | 6 | |
| donatien | 0:3717b703f76d | 7 | #include <queue> |
| donatien | 0:3717b703f76d | 8 | using std::queue; |
| donatien | 0:3717b703f76d | 9 | |
| donatien | 0:3717b703f76d | 10 | //Implements a Berkeley-like socket if |
| donatien | 0:3717b703f76d | 11 | //Can be interfaced either to lwip or a Telit module |
| donatien | 0:3717b703f76d | 12 | |
| donatien | 0:3717b703f76d | 13 | enum NetUdpSocketErr |
| donatien | 0:3717b703f76d | 14 | { |
| donatien | 0:3717b703f76d | 15 | __NETUDPSOCKET_MIN = -0xFFFF, |
| donatien | 0:3717b703f76d | 16 | NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured |
| donatien | 0:3717b703f76d | 17 | NETUDPSOCKET_IF, //If has problems |
| donatien | 0:3717b703f76d | 18 | NETUDPSOCKET_MEM, //Not enough mem |
| donatien | 0:3717b703f76d | 19 | NETUDPSOCKET_INUSE, //If/Port is in use |
| donatien | 0:3717b703f76d | 20 | //... |
| donatien | 0:3717b703f76d | 21 | NETUDPSOCKET_OK = 0 |
| donatien | 0:3717b703f76d | 22 | }; |
| donatien | 0:3717b703f76d | 23 | |
| donatien | 0:3717b703f76d | 24 | enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one! |
| donatien | 0:3717b703f76d | 25 | { |
| donatien | 0:3717b703f76d | 26 | NETUDPSOCKET_READABLE, //Data in buf |
| donatien | 0:3717b703f76d | 27 | }; |
| donatien | 0:3717b703f76d | 28 | |
| donatien | 0:3717b703f76d | 29 | |
| donatien | 0:3717b703f76d | 30 | class NetUdpSocket |
| donatien | 0:3717b703f76d | 31 | { |
| donatien | 0:3717b703f76d | 32 | public: |
| donatien | 0:3717b703f76d | 33 | NetUdpSocket(); |
| donatien | 0:3717b703f76d | 34 | virtual ~NetUdpSocket(); //close() |
| donatien | 0:3717b703f76d | 35 | |
| donatien | 0:3717b703f76d | 36 | virtual NetUdpSocketErr bind(const Host& me) = 0; |
| donatien | 0:3717b703f76d | 37 | |
| donatien | 0:3717b703f76d | 38 | virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0; |
| donatien | 0:3717b703f76d | 39 | virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0; |
| donatien | 0:3717b703f76d | 40 | |
| donatien | 0:3717b703f76d | 41 | /* TODO NTH : printf / scanf helpers that call send/recv */ |
| donatien | 0:3717b703f76d | 42 | |
| donatien | 0:3717b703f76d | 43 | virtual NetUdpSocketErr close() = 0; |
| donatien | 0:3717b703f76d | 44 | |
| donatien | 0:3717b703f76d | 45 | virtual NetUdpSocketErr poll() = 0; |
| donatien | 0:3717b703f76d | 46 | |
| donatien | 0:3717b703f76d | 47 | class CDummy; |
| donatien | 0:3717b703f76d | 48 | //Callbacks |
| donatien | 0:3717b703f76d | 49 | template<class T> |
| donatien | 0:3717b703f76d | 50 | //Linker bug : Must be defined here :( |
| donatien | 0:3717b703f76d | 51 | void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) ) |
| donatien | 0:3717b703f76d | 52 | { |
| donatien | 0:3717b703f76d | 53 | m_pCbItem = (CDummy*) pItem; |
| donatien | 0:3717b703f76d | 54 | m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod; |
| donatien | 0:3717b703f76d | 55 | } |
| donatien | 0:3717b703f76d | 56 | |
| donatien | 0:3717b703f76d | 57 | void resetOnEvent(); //Disable callback |
| donatien | 0:3717b703f76d | 58 | |
| donatien | 0:3717b703f76d | 59 | protected: |
| donatien | 0:3717b703f76d | 60 | void queueEvent(NetUdpSocketEvent e); |
| donatien | 0:3717b703f76d | 61 | void discardEvents(); |
| donatien | 0:3717b703f76d | 62 | void flushEvents(); //to be called during polling |
| donatien | 0:3717b703f76d | 63 | |
| donatien | 0:3717b703f76d | 64 | Host m_host; |
| donatien | 0:3717b703f76d | 65 | Host m_client; |
| donatien | 0:3717b703f76d | 66 | |
| donatien | 0:3717b703f76d | 67 | friend class Net; |
| donatien | 0:3717b703f76d | 68 | int m_refs; |
| donatien | 0:3717b703f76d | 69 | |
| donatien | 0:3717b703f76d | 70 | bool m_closed; |
| donatien | 0:3717b703f76d | 71 | bool m_removed; |
| donatien | 0:3717b703f76d | 72 | |
| donatien | 0:3717b703f76d | 73 | private: |
| donatien | 0:3717b703f76d | 74 | //We do not want to execute user code in interrupt routines, so we queue events until the server is polled |
| donatien | 0:3717b703f76d | 75 | //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) ) |
| donatien | 0:3717b703f76d | 76 | void onEvent(NetUdpSocketEvent e); //To be called on poll |
| donatien | 0:3717b703f76d | 77 | CDummy* m_pCbItem; |
| donatien | 0:3717b703f76d | 78 | void (CDummy::*m_pCbMeth)(NetUdpSocketEvent); |
| donatien | 0:3717b703f76d | 79 | queue<NetUdpSocketEvent> m_events; |
| donatien | 0:3717b703f76d | 80 | |
| donatien | 0:3717b703f76d | 81 | }; |
| donatien | 0:3717b703f76d | 82 | |
| donatien | 0:3717b703f76d | 83 | #endif |