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Dependencies:   mbed

lwip/Core/TCPCallbackConnection.h@0:441400ffd086, 2011-09-02 (annotated)

Committer:
geiineuville
Date:
Fri Sep 02 08:36:24 2011 +0000
Revision:
0:441400ffd086
V0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
geiineuville 0:441400ffd086 1 #ifndef TCPCALLBACKCONNECTION_H
geiineuville 0:441400ffd086 2 #define TCPCALLBACKCONNECTION_H
geiineuville 0:441400ffd086 3
geiineuville 0:441400ffd086 4 #include "TCPConnection.h"
geiineuville 0:441400ffd086 5
geiineuville 0:441400ffd086 6 namespace mbed {
geiineuville 0:441400ffd086 7
geiineuville 0:441400ffd086 8 #define NO_SENT_FNC ((err_t (*)(TCPCallbackConnection *, u16_t))NULL)
geiineuville 0:441400ffd086 9 #define NO_RECV_FNC ((err_t (*)(TCPCallbackConnection *, struct pbuf *, err_t))NULL)
geiineuville 0:441400ffd086 10 #define NO_POLL_FNC ((err_t (*)(TCPCallbackConnection *))NULL)
geiineuville 0:441400ffd086 11 #define NO_ACCEPT_FNC ((err_t (*)(TCPCallbackConnection *, struct tcp_pcb *, err_t))NULL)
geiineuville 0:441400ffd086 12 #define NO_CONNECT_FNC ((err_t (*)(TCPCallbackConnection *, err_t))NULL)
geiineuville 0:441400ffd086 13 #define NO_ERR_FNC ((void (*)(TCPCallbackConnection *, err_t))NULL)
geiineuville 0:441400ffd086 14
geiineuville 0:441400ffd086 15
geiineuville 0:441400ffd086 16 class TCPCallbackConnection : public TCPConnection {
geiineuville 0:441400ffd086 17 public:
geiineuville 0:441400ffd086 18 TCPCallbackConnection(struct ip_addr ip_addr, u16_t port,
geiineuville 0:441400ffd086 19 err_t (*psent)(TCPCallbackConnection *, u16_t),
geiineuville 0:441400ffd086 20 err_t (*precv)(TCPCallbackConnection *, struct pbuf *, err_t),
geiineuville 0:441400ffd086 21 err_t (*ppoll)(TCPCallbackConnection *),
geiineuville 0:441400ffd086 22 err_t (*pconnected)(TCPCallbackConnection *, err_t),
geiineuville 0:441400ffd086 23 void (*perr )(TCPCallbackConnection *, err_t))
geiineuville 0:441400ffd086 24 : TCPConnection(ip_addr, port) {
geiineuville 0:441400ffd086 25 _sent = psent;
geiineuville 0:441400ffd086 26 _recv = precv;
geiineuville 0:441400ffd086 27 _poll = ppoll;
geiineuville 0:441400ffd086 28 _connected = pconnected;
geiineuville 0:441400ffd086 29 _err = perr;
geiineuville 0:441400ffd086 30 }
geiineuville 0:441400ffd086 31
geiineuville 0:441400ffd086 32 TCPCallbackConnection(TCPListener *parent, struct tcp_pcb *npcb,
geiineuville 0:441400ffd086 33 err_t (*psent)(TCPCallbackConnection *, u16_t),
geiineuville 0:441400ffd086 34 err_t (*precv)(TCPCallbackConnection *, struct pbuf *, err_t),
geiineuville 0:441400ffd086 35 err_t (*ppoll)(TCPCallbackConnection *),
geiineuville 0:441400ffd086 36 err_t (*pconnected)(TCPCallbackConnection *, err_t),
geiineuville 0:441400ffd086 37 void (*perr )(TCPCallbackConnection *, err_t))
geiineuville 0:441400ffd086 38 : TCPConnection(parent, npcb) {
geiineuville 0:441400ffd086 39 _sent = psent;
geiineuville 0:441400ffd086 40 _recv = precv;
geiineuville 0:441400ffd086 41 _poll = ppoll;
geiineuville 0:441400ffd086 42 _connected = pconnected;
geiineuville 0:441400ffd086 43 _err = perr;
geiineuville 0:441400ffd086 44 }
geiineuville 0:441400ffd086 45
geiineuville 0:441400ffd086 46 private:
geiineuville 0:441400ffd086 47 /*
geiineuville 0:441400ffd086 48 * Function to be called when more send buffer space is available.
geiineuville 0:441400ffd086 49 * @param space the amount of bytes available
geiineuville 0:441400ffd086 50 * @return ERR_OK: try to send some data by calling tcp_output
geiineuville 0:441400ffd086 51 */
geiineuville 0:441400ffd086 52 virtual err_t sent(u16_t space) {
geiineuville 0:441400ffd086 53 if(_sent) {
geiineuville 0:441400ffd086 54 return (_sent)(this, space);
geiineuville 0:441400ffd086 55 } else {
geiineuville 0:441400ffd086 56 return ERR_OK;
geiineuville 0:441400ffd086 57 }
geiineuville 0:441400ffd086 58 }
geiineuville 0:441400ffd086 59
geiineuville 0:441400ffd086 60 /*
geiineuville 0:441400ffd086 61 * Function to be called when (in-sequence) data has arrived.
geiineuville 0:441400ffd086 62 * @param p the packet buffer which arrived
geiineuville 0:441400ffd086 63 * @param err an error argument (TODO: that is current always ERR_OK?)
geiineuville 0:441400ffd086 64 * @return ERR_OK: try to send some data by calling tcp_output
geiineuville 0:441400ffd086 65 */
geiineuville 0:441400ffd086 66 virtual err_t recv(struct pbuf *p, err_t err) {
geiineuville 0:441400ffd086 67 if(_recv) {
geiineuville 0:441400ffd086 68 return (_recv)(this, p, err);
geiineuville 0:441400ffd086 69 } else {
geiineuville 0:441400ffd086 70 return ERR_OK;
geiineuville 0:441400ffd086 71 }
geiineuville 0:441400ffd086 72 }
geiineuville 0:441400ffd086 73
geiineuville 0:441400ffd086 74 /*
geiineuville 0:441400ffd086 75 * Function which is called periodically.
geiineuville 0:441400ffd086 76 * The period can be adjusted in multiples of the TCP slow timer interval
geiineuville 0:441400ffd086 77 * by changing tcp_pcb.polltmr.
geiineuville 0:441400ffd086 78 * @return ERR_OK: try to send some data by calling tcp_output
geiineuville 0:441400ffd086 79 */
geiineuville 0:441400ffd086 80 virtual err_t poll() {
geiineuville 0:441400ffd086 81 if(_poll) {
geiineuville 0:441400ffd086 82 return (_poll)(this);
geiineuville 0:441400ffd086 83 } else {
geiineuville 0:441400ffd086 84 return ERR_OK;
geiineuville 0:441400ffd086 85 }
geiineuville 0:441400ffd086 86 }
geiineuville 0:441400ffd086 87
geiineuville 0:441400ffd086 88 virtual err_t connected(err_t err) {
geiineuville 0:441400ffd086 89 err = TCPConnection::connected(err);
geiineuville 0:441400ffd086 90 if(_connected) {
geiineuville 0:441400ffd086 91 return (_connected)(this, err);
geiineuville 0:441400ffd086 92 } else {
geiineuville 0:441400ffd086 93 return ERR_OK;
geiineuville 0:441400ffd086 94 }
geiineuville 0:441400ffd086 95 }
geiineuville 0:441400ffd086 96
geiineuville 0:441400ffd086 97 /*
geiineuville 0:441400ffd086 98 * Function to be called whenever a fatal error occurs.
geiineuville 0:441400ffd086 99 * There is no pcb parameter since most of the times, the pcb is
geiineuville 0:441400ffd086 100 * already deallocated (or there is no pcb) when this function is called.
geiineuville 0:441400ffd086 101 * @param err an indication why the error callback is called:
geiineuville 0:441400ffd086 102 * ERR_ABRT: aborted through tcp_abort or by a TCP timer
geiineuville 0:441400ffd086 103 * ERR_RST: the connection was reset by the remote host
geiineuville 0:441400ffd086 104 */
geiineuville 0:441400ffd086 105 virtual void err(err_t erra) {
geiineuville 0:441400ffd086 106 if(_err) {
geiineuville 0:441400ffd086 107 (_err)(this, erra);
geiineuville 0:441400ffd086 108 }
geiineuville 0:441400ffd086 109 }
geiineuville 0:441400ffd086 110
geiineuville 0:441400ffd086 111 virtual void dnsreply(const char *hostname, struct ip_addr *addr) {};
geiineuville 0:441400ffd086 112
geiineuville 0:441400ffd086 113 err_t (*_sent)(TCPCallbackConnection *, u16_t);
geiineuville 0:441400ffd086 114 err_t (*_recv)(TCPCallbackConnection *, struct pbuf *p, err_t err);
geiineuville 0:441400ffd086 115 err_t (*_poll)(TCPCallbackConnection *);
geiineuville 0:441400ffd086 116 err_t (*_accept)(TCPCallbackConnection *, struct tcp_pcb *newpcb, err_t err);
geiineuville 0:441400ffd086 117 err_t (*_connected)(TCPCallbackConnection *, err_t err);
geiineuville 0:441400ffd086 118 void (*_err )(TCPCallbackConnection *, err_t);
geiineuville 0:441400ffd086 119 };
geiineuville 0:441400ffd086 120
geiineuville 0:441400ffd086 121 };
geiineuville 0:441400ffd086 122
geiineuville 0:441400ffd086 123 #endif /* TCPCALLBACKCONNECTION_H */