Daniele Lacamera / PicoTCP-Experimental_CDC_ECM_Branch

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Fork of PicoTCP by Daniele Lacamera

Socket/TCPSocketConnection.cpp@37:bdf736327c71, 2013-07-03 (annotated)

Committer:
tass
Date:
Wed Jul 03 08:56:01 2013 +0000
Revision:
37:bdf736327c71
Parent:
35:6078073547bb
Child:
39:8d4d653d94bd
Added DNS calls to stack interface.; Integrated the DNS feature in Endpoint.; Fixed incomplete data receiving.;

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 {
daniele 29:1a47b7151851 43 printf("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 {
daniele 29:1a47b7151851 49 printf("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;
daniele 29:1a47b7151851 67 if ((_ep < 0) || !_is_connected)
daniele 29:1a47b7151851 68 return -1;
daniele 29:1a47b7151851 69
tass 35:6078073547bb 70 TimeInterval timeout(!_blocking ? _timeout : osWaitForever);
tass 35:6078073547bb 71 if (wait_writable(timeout) != 0)
tass 35:6078073547bb 72 {
tass 35:6078073547bb 73 printf("Failed\n");
tass 35:6078073547bb 74 return -1;
daniele 29:1a47b7151851 75 }
tass 35:6078073547bb 76
daniele 29:1a47b7151851 77 ret = picotcp_write(_ep, data, length);
daniele 29:1a47b7151851 78 if (ret < length) {
daniele 29:1a47b7151851 79 _ep->revents &= (~PICO_SOCK_EV_WR);
tass 37:bdf736327c71 80 //printf("Short write\n");
daniele 29:1a47b7151851 81 }
daniele 29:1a47b7151851 82 return ret;
daniele 29:1a47b7151851 83 }
daniele 29:1a47b7151851 84
daniele 29:1a47b7151851 85 // -1 if unsuccessful, else number of bytes written
daniele 29:1a47b7151851 86 int TCPSocketConnection::send_all(char* data, int length) {
daniele 29:1a47b7151851 87 int ret;
daniele 29:1a47b7151851 88 if ((_ep < 0) || !_is_connected)
daniele 29:1a47b7151851 89 return -1;
daniele 29:1a47b7151851 90
tass 35:6078073547bb 91
tass 35:6078073547bb 92 TimeInterval timeout(!_blocking? _timeout : osWaitForever);
tass 35:6078073547bb 93 // Wait for socket to be writeable
tass 35:6078073547bb 94 if (wait_writable(timeout) != 0) {
tass 35:6078073547bb 95 return 0;
daniele 29:1a47b7151851 96 }
daniele 29:1a47b7151851 97 ret = picotcp_write(_ep, data, length);
daniele 29:1a47b7151851 98 if (ret < length) {
daniele 29:1a47b7151851 99 _ep->revents &= (~PICO_SOCK_EV_WR);
daniele 29:1a47b7151851 100 //printf("Short write\n");
daniele 29:1a47b7151851 101 }
daniele 29:1a47b7151851 102 return ret;
daniele 29:1a47b7151851 103 }
daniele 29:1a47b7151851 104
daniele 29:1a47b7151851 105 int TCPSocketConnection::receive(char* data, int length) {
daniele 29:1a47b7151851 106 int ret;
daniele 29:1a47b7151851 107 if ((_ep < 0) || !_is_connected)
daniele 29:1a47b7151851 108 return -1;
daniele 29:1a47b7151851 109
tass 35:6078073547bb 110
tass 35:6078073547bb 111 TimeInterval timeout(!_blocking ? _timeout : osWaitForever);
tass 35:6078073547bb 112 if (wait_readable(timeout) != 0)
tass 35:6078073547bb 113 {
tass 35:6078073547bb 114 printf("Failed receiving\n");
tass 35:6078073547bb 115 return -1;
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);
daniele 29:1a47b7151851 121 //printf("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 }