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@44:ffd9a11d4f95, 2013-07-17 (annotated)

Committer:
tass
Date:
Wed Jul 17 11:55:09 2013 +0000
Revision:
44:ffd9a11d4f95
Parent:
39:8d4d653d94bd
Child:
47:ed8f44fa8db9
Added mbed_dbg for debug messages.

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 {
tass 35:6078073547bb 82 return -1;
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 {
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);
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 }