u-blox / C027_Support

support library for C027 helper functions for Buffer Pipes, Buffered Serial Port (rtos capable) and GPS parsing. It includes modem APIs for USSD, SMS and Sockets.

Dependents:   HTTPClient_Cellular_HelloWorld Cellular_HelloMQTT MbedSmartRestMain Car_Bon_car_module ... more

This library is intended to be used with u-blox products such as the C027 or a shield with u-blox cellular and GPS modules like the cellular and positioning shield from Embedded Artist.

For 2G/GSM and 3G/UMTS you need to:

  • have a SIM card and know its PIN number
  • need to know you network operators APN setting These setting should be passed to the connect or init and join functions. You can also extend the APN database in MDMAPN.h.

For CDMA products you need to make sure that you have provisioned and activated the modem with either Sprint or Verizon.

Socket/TCPSocketConnection.h@138:dafbbf31bf76, 2016-02-25 (annotated)

Committer:
walser
Date:
Thu Feb 25 13:22:34 2016 +0000
Revision:
138:dafbbf31bf76
Parent:
67:ff9472d344d4 
Improve connection checking of TCP socket.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mazgch 44:9d12223b78ff 1 #ifndef TCPSOCKET_H
mazgch 44:9d12223b78ff 2 #define TCPSOCKET_H
mazgch 44:9d12223b78ff 3
mazgch 44:9d12223b78ff 4 #include "Socket.h"
mazgch 44:9d12223b78ff 5
mazgch 44:9d12223b78ff 6 /** TCP socket connection
mazgch 44:9d12223b78ff 7 */
mazgch 44:9d12223b78ff 8 class TCPSocketConnection: public Socket
mazgch 44:9d12223b78ff 9 {
mazgch 44:9d12223b78ff 10 friend class TCPSocketServer;
mazgch 44:9d12223b78ff 11
mazgch 44:9d12223b78ff 12 public:
mazgch 44:9d12223b78ff 13 /** TCP socket connection
mazgch 44:9d12223b78ff 14 */
mazgch 44:9d12223b78ff 15 TCPSocketConnection() {}
mazgch 44:9d12223b78ff 16
mazgch 44:9d12223b78ff 17 /** Connects this TCP socket to the server
mazgch 44:9d12223b78ff 18 \param host The host to connect to. It can either be an IP Address or a hostname that will be resolved with DNS.
mazgch 44:9d12223b78ff 19 \param port The host's port to connect to.
mazgch 44:9d12223b78ff 20 \return 0 on success, -1 on failure.
mazgch 44:9d12223b78ff 21 */
mazgch 44:9d12223b78ff 22 int connect(const char* host, const int port)
mazgch 44:9d12223b78ff 23 {
mazgch 63:42cb563a25bc 24 if (_mdm == NULL)
mazgch 63:42cb563a25bc 25 _mdm = MDMParser::getInstance();
mazgch 54:7ba8e4c218e2 26 if (_mdm == NULL)
mazgch 54:7ba8e4c218e2 27 return -1;
mazgch 54:7ba8e4c218e2 28
mazgch 44:9d12223b78ff 29 if (_socket < 0) {
mazgch 44:9d12223b78ff 30 _socket = _mdm->socketSocket(MDMParser::IPPROTO_TCP);
mazgch 44:9d12223b78ff 31 if (_socket < 0) {
mazgch 44:9d12223b78ff 32 return -1;
mazgch 44:9d12223b78ff 33 }
mazgch 44:9d12223b78ff 34 }
mazgch 44:9d12223b78ff 35
mazgch 67:ff9472d344d4 36 _mdm->socketSetBlocking(_socket, _timeout_ms);
mazgch 44:9d12223b78ff 37 if (!_mdm->socketConnect(_socket, host, port)) {
mazgch 60:1f65abb842be 38 return -1;
mazgch 44:9d12223b78ff 39 }
mazgch 60:1f65abb842be 40 return 0;
mazgch 44:9d12223b78ff 41 }
mazgch 44:9d12223b78ff 42 /** Check if the socket is connected
mazgch 44:9d12223b78ff 43 \return true if connected, false otherwise.
mazgch 44:9d12223b78ff 44 */
walser 138:dafbbf31bf76 45 bool is_connected(void)
walser 138:dafbbf31bf76 46 {
walser 138:dafbbf31bf76 47 if (_socket < 0)
walser 138:dafbbf31bf76 48 return false;
walser 138:dafbbf31bf76 49 return _mdm->socketIsConnected(_socket);
walser 138:dafbbf31bf76 50 }
mazgch 44:9d12223b78ff 51
mazgch 44:9d12223b78ff 52 /** Send data to the remote host.
mazgch 44:9d12223b78ff 53 \param data The buffer to send to the host.
mazgch 44:9d12223b78ff 54 \param length The length of the buffer to send.
mazgch 44:9d12223b78ff 55 \return the number of written bytes on success (>=0) or -1 on failure
mazgch 44:9d12223b78ff 56 */
mazgch 44:9d12223b78ff 57 int send(char* data, int length) { return _mdm->socketSend(_socket, data, length); }
mazgch 44:9d12223b78ff 58
mazgch 44:9d12223b78ff 59 /** Send all the data to the remote host.
mazgch 44:9d12223b78ff 60 \param data The buffer to send to the host.
mazgch 44:9d12223b78ff 61 \param length The length of the buffer to send.
mazgch 44:9d12223b78ff 62 \return the number of written bytes on success (>=0) or -1 on failure
mazgch 44:9d12223b78ff 63 */
mazgch 44:9d12223b78ff 64 int send_all(char* data, int length) { return send(data,length); }
mazgch 44:9d12223b78ff 65
mazgch 44:9d12223b78ff 66 /** Receive data from the remote host.
mazgch 44:9d12223b78ff 67 \param data The buffer in which to store the data received from the host.
mazgch 44:9d12223b78ff 68 \param length The maximum length of the buffer.
mazgch 44:9d12223b78ff 69 \return the number of received bytes on success (>=0) or -1 on failure
mazgch 44:9d12223b78ff 70 */
mazgch 44:9d12223b78ff 71 int receive(char* data, int length) { return _mdm->socketRecv(_socket, data, length); }
mazgch 44:9d12223b78ff 72
mazgch 44:9d12223b78ff 73 /** Receive all the data from the remote host.
mazgch 44:9d12223b78ff 74 \param data The buffer in which to store the data received from the host.
mazgch 44:9d12223b78ff 75 \param length The maximum length of the buffer.
mazgch 44:9d12223b78ff 76 \return the number of received bytes on success (>=0) or -1 on failure
mazgch 44:9d12223b78ff 77 */
mazgch 44:9d12223b78ff 78 int receive_all(char* data, int length) { return receive(data,length); }
mazgch 44:9d12223b78ff 79
mazgch 44:9d12223b78ff 80 };
mazgch 44:9d12223b78ff 81
mazgch 44:9d12223b78ff 82 #endif