Daniele Lacamera / PicoTCP-Experimental_CDC_ECM_Branch

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Fork of PicoTCP by Daniele Lacamera

Socket/TCPSocketConnection.cpp@47:ed8f44fa8db9, 2013-07-25 (annotated)

Committer:
daniele
Date:
Thu Jul 25 09:36:23 2013 +0000
Revision:
47:ed8f44fa8db9
Parent:
44:ffd9a11d4f95 
TCPConnection returns 0 on timeout now

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daniele 29:1a47b7151851 1 /*
daniele 29:1a47b7151851 2 *
daniele 29:1a47b7151851 3 * PicoTCP Socket interface for mbed.
daniele 29:1a47b7151851 4 * Copyright (C) 2013 TASS Belgium NV
daniele 29:1a47b7151851 5 *
daniele 29:1a47b7151851 6 * Released under GPL v2
daniele 29:1a47b7151851 7 *
daniele 29:1a47b7151851 8 * Other licensing models might apply at the sole discretion of the copyright holders.
daniele 29:1a47b7151851 9 *
daniele 29:1a47b7151851 10 *
daniele 29:1a47b7151851 11 * This software is based on the mbed.org EthernetInterface implementation:
daniele 29:1a47b7151851 12 * Copyright (C) 2012 mbed.org, MIT License
daniele 29:1a47b7151851 13 *
daniele 29:1a47b7151851 14 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
daniele 29:1a47b7151851 15 * and associated documentation files (the "Software"), to deal in the Software without restriction,
daniele 29:1a47b7151851 16 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
daniele 29:1a47b7151851 17 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
daniele 29:1a47b7151851 18 * furnished to do so, subject to the following conditions:
daniele 29:1a47b7151851 19 *
daniele 29:1a47b7151851 20 * The above copyright notice and this permission notice shall be included in all copies or
daniele 29:1a47b7151851 21 * substantial portions of the Software.
daniele 29:1a47b7151851 22 *
daniele 29:1a47b7151851 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
daniele 29:1a47b7151851 24 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
daniele 29:1a47b7151851 25 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
daniele 29:1a47b7151851 26 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
daniele 29:1a47b7151851 27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
daniele 29:1a47b7151851 28 */
daniele 29:1a47b7151851 29 #include "TCPSocketConnection.h"
daniele 29:1a47b7151851 30 #include "wrapper.h"
daniele 29:1a47b7151851 31 #include <cstring>
daniele 29:1a47b7151851 32
daniele 29:1a47b7151851 33 using std::memset;
daniele 29:1a47b7151851 34 using std::memcpy;
daniele 29:1a47b7151851 35
daniele 29:1a47b7151851 36 TCPSocketConnection::TCPSocketConnection() :
daniele 29:1a47b7151851 37 _is_connected(false) {
daniele 29:1a47b7151851 38 }
daniele 29:1a47b7151851 39
daniele 29:1a47b7151851 40 int TCPSocketConnection::connect(const char* host, const int port) {
daniele 29:1a47b7151851 41 if (init_socket(SOCK_STREAM) < 0)
daniele 29:1a47b7151851 42 {
tass 44:ffd9a11d4f95 43 mbed_dbg("init_socket\n");
daniele 29:1a47b7151851 44 return -1;
daniele 29:1a47b7151851 45 }
tass 37:bdf736327c71 46
daniele 29:1a47b7151851 47 if (set_address(host, port) != 0)
daniele 29:1a47b7151851 48 {
tass 44:ffd9a11d4f95 49 mbed_dbg("set_address\n");
daniele 29:1a47b7151851 50 return -1;
daniele 29:1a47b7151851 51 }
daniele 29:1a47b7151851 52 if (picotcp_connect(_ep, (struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
daniele 29:1a47b7151851 53 close();
daniele 29:1a47b7151851 54 return -1;
daniele 29:1a47b7151851 55 }
daniele 29:1a47b7151851 56 _is_connected = true;
daniele 29:1a47b7151851 57
daniele 29:1a47b7151851 58 return 0;
daniele 29:1a47b7151851 59 }
daniele 29:1a47b7151851 60
daniele 29:1a47b7151851 61 bool TCPSocketConnection::is_connected(void) {
daniele 29:1a47b7151851 62 return _is_connected;
daniele 29:1a47b7151851 63 }
daniele 29:1a47b7151851 64
daniele 29:1a47b7151851 65 int TCPSocketConnection::send(char* data, int length) {
daniele 29:1a47b7151851 66 int ret;
tass 39:8d4d653d94bd 67 if ((_ep == NULL) || !_is_connected)
daniele 29:1a47b7151851 68 return -1;
daniele 29:1a47b7151851 69
tass 39:8d4d653d94bd 70 if(is_writable())
tass 39:8d4d653d94bd 71 {
tass 39:8d4d653d94bd 72 ret = picotcp_write(_ep, data, length);
tass 39:8d4d653d94bd 73 if(ret < length)
tass 39:8d4d653d94bd 74 _ep->revents &= (~PICO_SOCK_EV_WR);
tass 39:8d4d653d94bd 75 if(ret) // data was read or error was reported
tass 39:8d4d653d94bd 76 return ret;
tass 39:8d4d653d94bd 77 }
tass 39:8d4d653d94bd 78
tass 35:6078073547bb 79 TimeInterval timeout(!_blocking ? _timeout : osWaitForever);
tass 35:6078073547bb 80 if (wait_writable(timeout) != 0)
tass 35:6078073547bb 81 {
daniele 47:ed8f44fa8db9 82 return 0; /* Timeout */
daniele 29:1a47b7151851 83 }
tass 35:6078073547bb 84
daniele 29:1a47b7151851 85 ret = picotcp_write(_ep, data, length);
daniele 29:1a47b7151851 86 if (ret < length) {
daniele 29:1a47b7151851 87 _ep->revents &= (~PICO_SOCK_EV_WR);
tass 44:ffd9a11d4f95 88 //mbed_dbg("Short write\n");
daniele 29:1a47b7151851 89 }
daniele 29:1a47b7151851 90 return ret;
daniele 29:1a47b7151851 91 }
daniele 29:1a47b7151851 92
daniele 29:1a47b7151851 93 // -1 if unsuccessful, else number of bytes written
daniele 29:1a47b7151851 94 int TCPSocketConnection::send_all(char* data, int length) {
tass 39:8d4d653d94bd 95 return send(data,length);
daniele 29:1a47b7151851 96 }
daniele 29:1a47b7151851 97
daniele 29:1a47b7151851 98 int TCPSocketConnection::receive(char* data, int length) {
daniele 29:1a47b7151851 99 int ret;
tass 39:8d4d653d94bd 100 if ((_ep == NULL) || !_is_connected)
daniele 29:1a47b7151851 101 return -1;
daniele 29:1a47b7151851 102
tass 39:8d4d653d94bd 103 if(is_readable())
tass 39:8d4d653d94bd 104 {
tass 39:8d4d653d94bd 105 ret = picotcp_read(_ep, data, length);
tass 39:8d4d653d94bd 106 if(ret<length)
tass 39:8d4d653d94bd 107 _ep->revents &= (~PICO_SOCK_EV_RD);
tass 39:8d4d653d94bd 108 if(ret) // data was read or error was reported
tass 39:8d4d653d94bd 109 return ret;
tass 39:8d4d653d94bd 110 }
tass 35:6078073547bb 111
tass 35:6078073547bb 112 TimeInterval timeout(!_blocking ? _timeout : osWaitForever);
tass 35:6078073547bb 113 if (wait_readable(timeout) != 0)
tass 35:6078073547bb 114 {
daniele 47:ed8f44fa8db9 115 return 0; /* Timeout */
daniele 29:1a47b7151851 116 }
tass 35:6078073547bb 117
daniele 29:1a47b7151851 118 ret = picotcp_read(_ep, data, length);
daniele 29:1a47b7151851 119 if (ret < length) {
daniele 29:1a47b7151851 120 _ep->revents &= (~PICO_SOCK_EV_RD);
tass 44:ffd9a11d4f95 121 //mbed_dbg("Short read\n");
daniele 29:1a47b7151851 122 }
daniele 29:1a47b7151851 123 return ret;
daniele 29:1a47b7151851 124 }
daniele 29:1a47b7151851 125
daniele 29:1a47b7151851 126 // -1 if unsuccessful, else number of bytes received
daniele 29:1a47b7151851 127 int TCPSocketConnection::receive_all(char* data, int length) {
daniele 29:1a47b7151851 128 return receive(data, length);
daniele 29:1a47b7151851 129 }