Daniele Lacamera / PicoTCP Featured

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Dependents:   lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more

PicoTCP. Copyright (c) 2013 TASS Belgium NV.

Released under the GNU General Public License, version 2.

Different licensing models may exist, at the sole discretion of the Copyright holders.

Official homepage: http://www.picotcp.com

Bug tracker: https://github.com/tass-belgium/picotcp/issues

Development steps:

  • initial integration with mbed RTOS
  • generic mbed Ethernet driver
  • high performance NXP LPC1768 specific Ethernet driver
  • Multi-threading support for mbed RTOS
  • Berkeley sockets and integration with the New Socket API
  • Fork of the apps running on top of the New Socket API
  • Scheduling optimizations
  • Debugging/benchmarking/testing

Demo application (measuring TCP sender performance):

Import programlpc1768-picotcp-demo

A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.

Last commit 17 May 2013 by TASS Belgium

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 }