My fork of the HTTPServer (working)
Core/TCPConnection.h@0:7a64fbb4069d, 2012-08-06 (annotated)
- Committer:
- screamer
- Date:
- Mon Aug 06 09:23:14 2012 +0000
- Revision:
- 0:7a64fbb4069d
[mbed] converted /DGWWebServer/HTTPServer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
screamer | 0:7a64fbb4069d | 1 | #ifndef TCPCONNECTION_H |
screamer | 0:7a64fbb4069d | 2 | #define TCPCONNECTION_H |
screamer | 0:7a64fbb4069d | 3 | |
screamer | 0:7a64fbb4069d | 4 | #include "arch/cc.h" |
screamer | 0:7a64fbb4069d | 5 | #include "lwip/err.h" |
screamer | 0:7a64fbb4069d | 6 | //#include "lwip/tcp.h" |
screamer | 0:7a64fbb4069d | 7 | |
screamer | 0:7a64fbb4069d | 8 | #include "TCPItem.h" |
screamer | 0:7a64fbb4069d | 9 | |
screamer | 0:7a64fbb4069d | 10 | namespace mbed { |
screamer | 0:7a64fbb4069d | 11 | |
screamer | 0:7a64fbb4069d | 12 | class NetServer; |
screamer | 0:7a64fbb4069d | 13 | class TCPListener; |
screamer | 0:7a64fbb4069d | 14 | |
screamer | 0:7a64fbb4069d | 15 | class TCPConnection : public TCPItem { |
screamer | 0:7a64fbb4069d | 16 | public: |
screamer | 0:7a64fbb4069d | 17 | TCPConnection(struct ip_addr, u16_t); |
screamer | 0:7a64fbb4069d | 18 | TCPConnection(TCPListener *, struct tcp_pcb *); |
screamer | 0:7a64fbb4069d | 19 | |
screamer | 0:7a64fbb4069d | 20 | virtual ~TCPConnection(); |
screamer | 0:7a64fbb4069d | 21 | |
screamer | 0:7a64fbb4069d | 22 | void connect(); |
screamer | 0:7a64fbb4069d | 23 | |
screamer | 0:7a64fbb4069d | 24 | err_t write(void *, u16_t len, u8_t flags = TCP_WRITE_FLAG_COPY) const; |
screamer | 0:7a64fbb4069d | 25 | |
screamer | 0:7a64fbb4069d | 26 | void recved(u32_t len) const; |
screamer | 0:7a64fbb4069d | 27 | u16_t sndbuf() const { return tcp_sndbuf(_pcb); } |
screamer | 0:7a64fbb4069d | 28 | |
screamer | 0:7a64fbb4069d | 29 | void set_poll_timer(const u32_t &time) { |
screamer | 0:7a64fbb4069d | 30 | if(_pcb) { |
screamer | 0:7a64fbb4069d | 31 | _pcb->polltmr = time; |
screamer | 0:7a64fbb4069d | 32 | } |
screamer | 0:7a64fbb4069d | 33 | } |
screamer | 0:7a64fbb4069d | 34 | |
screamer | 0:7a64fbb4069d | 35 | u32_t get_poll_interval() const { |
screamer | 0:7a64fbb4069d | 36 | return (_pcb)? _pcb->pollinterval: 0; |
screamer | 0:7a64fbb4069d | 37 | } |
screamer | 0:7a64fbb4069d | 38 | |
screamer | 0:7a64fbb4069d | 39 | void set_poll_interval(const u32_t &value) { |
screamer | 0:7a64fbb4069d | 40 | if(_pcb) { |
screamer | 0:7a64fbb4069d | 41 | _pcb->pollinterval = value; |
screamer | 0:7a64fbb4069d | 42 | } |
screamer | 0:7a64fbb4069d | 43 | } |
screamer | 0:7a64fbb4069d | 44 | |
screamer | 0:7a64fbb4069d | 45 | u32_t get_poll_timer() const { |
screamer | 0:7a64fbb4069d | 46 | return (_pcb)? _pcb->polltmr: 0; |
screamer | 0:7a64fbb4069d | 47 | } |
screamer | 0:7a64fbb4069d | 48 | |
screamer | 0:7a64fbb4069d | 49 | protected: |
screamer | 0:7a64fbb4069d | 50 | TCPConnection(); |
screamer | 0:7a64fbb4069d | 51 | |
screamer | 0:7a64fbb4069d | 52 | /** |
screamer | 0:7a64fbb4069d | 53 | * Function to be called when more send buffer space is available. |
screamer | 0:7a64fbb4069d | 54 | * @param space the amount of bytes available |
screamer | 0:7a64fbb4069d | 55 | * @return ERR_OK: try to send some data by calling tcp_output |
screamer | 0:7a64fbb4069d | 56 | */ |
screamer | 0:7a64fbb4069d | 57 | virtual err_t sent(u16_t space) = 0; |
screamer | 0:7a64fbb4069d | 58 | |
screamer | 0:7a64fbb4069d | 59 | /** |
screamer | 0:7a64fbb4069d | 60 | * Function to be called when (in-sequence) data has arrived. |
screamer | 0:7a64fbb4069d | 61 | * @param p the packet buffer which arrived |
screamer | 0:7a64fbb4069d | 62 | * @param err an error argument (TODO: that is current always ERR_OK?) |
screamer | 0:7a64fbb4069d | 63 | * @return ERR_OK: try to send some data by calling tcp_output |
screamer | 0:7a64fbb4069d | 64 | */ |
screamer | 0:7a64fbb4069d | 65 | virtual err_t recv(struct pbuf *p, err_t err) = 0; |
screamer | 0:7a64fbb4069d | 66 | |
screamer | 0:7a64fbb4069d | 67 | /** |
screamer | 0:7a64fbb4069d | 68 | * Function to be called when a connection has been set up. |
screamer | 0:7a64fbb4069d | 69 | * @param pcb the tcp_pcb that now is connected |
screamer | 0:7a64fbb4069d | 70 | * @param err an error argument (TODO: that is current always ERR_OK?) |
screamer | 0:7a64fbb4069d | 71 | * @return value is currently ignored |
screamer | 0:7a64fbb4069d | 72 | */ |
screamer | 0:7a64fbb4069d | 73 | virtual err_t connected(err_t err); |
screamer | 0:7a64fbb4069d | 74 | |
screamer | 0:7a64fbb4069d | 75 | /** |
screamer | 0:7a64fbb4069d | 76 | * Function which is called periodically. |
screamer | 0:7a64fbb4069d | 77 | * The period can be adjusted in multiples of the TCP slow timer interval |
screamer | 0:7a64fbb4069d | 78 | * by changing tcp_pcb.polltmr. |
screamer | 0:7a64fbb4069d | 79 | * @return ERR_OK: try to send some data by calling tcp_output |
screamer | 0:7a64fbb4069d | 80 | */ |
screamer | 0:7a64fbb4069d | 81 | virtual err_t poll() = 0; |
screamer | 0:7a64fbb4069d | 82 | |
screamer | 0:7a64fbb4069d | 83 | /** |
screamer | 0:7a64fbb4069d | 84 | * Function to be called whenever a fatal error occurs. |
screamer | 0:7a64fbb4069d | 85 | * There is no pcb parameter since most of the times, the pcb is |
screamer | 0:7a64fbb4069d | 86 | * already deallocated (or there is no pcb) when this function is called. |
screamer | 0:7a64fbb4069d | 87 | * @param err an indication why the error callback is called: |
screamer | 0:7a64fbb4069d | 88 | * ERR_ABRT: aborted through tcp_abort or by a TCP timer |
screamer | 0:7a64fbb4069d | 89 | * ERR_RST: the connection was reset by the remote host |
screamer | 0:7a64fbb4069d | 90 | */ |
screamer | 0:7a64fbb4069d | 91 | virtual void err(err_t err) = 0; |
screamer | 0:7a64fbb4069d | 92 | |
screamer | 0:7a64fbb4069d | 93 | virtual void dnsreply(const char *hostname, struct ip_addr *addr) = 0; |
screamer | 0:7a64fbb4069d | 94 | |
screamer | 0:7a64fbb4069d | 95 | err_t dnsrequest(const char *hostname, struct ip_addr *addr) const; |
screamer | 0:7a64fbb4069d | 96 | |
screamer | 0:7a64fbb4069d | 97 | private: |
screamer | 0:7a64fbb4069d | 98 | static void dnsreply_callback(const char *name, struct ip_addr *ipaddr, void *arg); |
screamer | 0:7a64fbb4069d | 99 | static err_t connected_callback(void *arg, struct tcp_pcb *pcb, err_t err); |
screamer | 0:7a64fbb4069d | 100 | static err_t sent_callback(void *arg, struct tcp_pcb *pcb, u16_t space); |
screamer | 0:7a64fbb4069d | 101 | static err_t recv_callback(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err); |
screamer | 0:7a64fbb4069d | 102 | static err_t poll_callback(void *arg, struct tcp_pcb *pcb); |
screamer | 0:7a64fbb4069d | 103 | static void error_callback(void *arg, err_t erra); |
screamer | 0:7a64fbb4069d | 104 | |
screamer | 0:7a64fbb4069d | 105 | protected: |
screamer | 0:7a64fbb4069d | 106 | TCPListener *_parent; |
screamer | 0:7a64fbb4069d | 107 | struct ip_addr _ipaddr; |
screamer | 0:7a64fbb4069d | 108 | u16_t _port; |
screamer | 0:7a64fbb4069d | 109 | |
screamer | 0:7a64fbb4069d | 110 | friend class NetServer; |
screamer | 0:7a64fbb4069d | 111 | }; |
screamer | 0:7a64fbb4069d | 112 | |
screamer | 0:7a64fbb4069d | 113 | }; |
screamer | 0:7a64fbb4069d | 114 | |
screamer | 0:7a64fbb4069d | 115 | #endif /* TCPCONNECTION_H */ |