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/UDPSocket.cpp@18:c6f67fcfc62a, 2013-06-07 (annotated)

Committer:
tass
Date:
Fri Jun 07 13:44:59 2013 +0000
Revision:
18:c6f67fcfc62a
Parent:
5:445d2fc04784 
Started integrating the new socket interface.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tass 5:445d2fc04784 1 /*
tass 5:445d2fc04784 2 *
tass 5:445d2fc04784 3 * PicoTCP Socket interface for mbed.
tass 5:445d2fc04784 4 * Copyright (C) 2013 TASS Belgium NV
tass 5:445d2fc04784 5 *
tass 5:445d2fc04784 6 * Released under GPL v2
tass 5:445d2fc04784 7 *
tass 5:445d2fc04784 8 * Other licensing models might apply at the sole discretion of the copyright holders.
tass 5:445d2fc04784 9 *
tass 5:445d2fc04784 10 *
tass 5:445d2fc04784 11 * This software is based on the mbed.org EthernetInterface implementation:
tass 5:445d2fc04784 12 * Copyright (C) 2012 mbed.org, MIT License
tass 5:445d2fc04784 13 *
tass 5:445d2fc04784 14 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
tass 5:445d2fc04784 15 * and associated documentation files (the "Software"), to deal in the Software without restriction,
tass 5:445d2fc04784 16 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
tass 5:445d2fc04784 17 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
tass 5:445d2fc04784 18 * furnished to do so, subject to the following conditions:
tass 5:445d2fc04784 19 *
tass 5:445d2fc04784 20 * The above copyright notice and this permission notice shall be included in all copies or
tass 5:445d2fc04784 21 * substantial portions of the Software.
tass 5:445d2fc04784 22 *
tass 5:445d2fc04784 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
tass 5:445d2fc04784 24 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
tass 5:445d2fc04784 25 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
tass 5:445d2fc04784 26 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
tass 5:445d2fc04784 27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
tass 5:445d2fc04784 28 */
tass 5:445d2fc04784 29
tass 5:445d2fc04784 30 #include "Socket/UDPSocket.h"
tass 18:c6f67fcfc62a 31 #include "wrapper.h"
tass 18:c6f67fcfc62a 32 #include "proxy_endpoint.h"
tass 5:445d2fc04784 33
tass 5:445d2fc04784 34 #include <cstring>
tass 5:445d2fc04784 35
tass 5:445d2fc04784 36 using std::memset;
tass 5:445d2fc04784 37
tass 5:445d2fc04784 38 UDPSocket::UDPSocket() {
tass 5:445d2fc04784 39 }
tass 5:445d2fc04784 40
tass 5:445d2fc04784 41 int UDPSocket::init(void) {
tass 5:445d2fc04784 42 return init_socket(SOCK_DGRAM);
tass 5:445d2fc04784 43 }
tass 5:445d2fc04784 44
tass 5:445d2fc04784 45 // Server initialization
tass 5:445d2fc04784 46 int UDPSocket::bind(int port) {
tass 5:445d2fc04784 47 if (init_socket(SOCK_DGRAM) < 0)
tass 5:445d2fc04784 48 return -1;
tass 5:445d2fc04784 49
tass 5:445d2fc04784 50 struct sockaddr_in localHost;
tass 5:445d2fc04784 51 std::memset(&localHost, 0, sizeof(localHost));
tass 5:445d2fc04784 52
tass 5:445d2fc04784 53 localHost.sin_family = AF_INET;
tass 5:445d2fc04784 54 localHost.sin_port = short_be(port);
tass 5:445d2fc04784 55 localHost.sin_addr.s_addr = INADDR_ANY;
tass 5:445d2fc04784 56
tass 5:445d2fc04784 57 if (picotcp_bind(_sock_fd, (struct sockaddr *) &localHost, (socklen_t)sizeof(localHost)) < 0) {
tass 5:445d2fc04784 58 close();
tass 5:445d2fc04784 59 return -1;
tass 5:445d2fc04784 60 }
tass 5:445d2fc04784 61
tass 5:445d2fc04784 62 return 0;
tass 5:445d2fc04784 63 }
tass 5:445d2fc04784 64
tass 5:445d2fc04784 65 int UDPSocket::join_multicast_group(EthernetInterface& eth, const char* address) {
tass 5:445d2fc04784 66
tass 5:445d2fc04784 67 return picotcp_join_multicast(_sock_fd,address,eth.getIPAddress());
tass 5:445d2fc04784 68 }
tass 5:445d2fc04784 69
tass 5:445d2fc04784 70 int UDPSocket::set_broadcasting(void) {
tass 5:445d2fc04784 71 int option = 1;
tass 5:445d2fc04784 72 return set_option(SOL_SOCKET, SO_BROADCAST, &option, sizeof(option));
tass 5:445d2fc04784 73 }
tass 5:445d2fc04784 74
tass 5:445d2fc04784 75 // -1 if unsuccessful, else number of bytes written
tass 5:445d2fc04784 76 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) {
tass 5:445d2fc04784 77 if (_sock_fd < 0)
tass 5:445d2fc04784 78 {
tass 5:445d2fc04784 79 printf("Error on socket descriptor \n");
tass 5:445d2fc04784 80 return -1;
tass 5:445d2fc04784 81 }
tass 5:445d2fc04784 82
tass 5:445d2fc04784 83 /* This is not needed for our udp sock ?
tass 5:445d2fc04784 84 if (_blocking) {
tass 5:445d2fc04784 85 TimeInterval timeout(_timeout);
tass 5:445d2fc04784 86 if (wait_writable(timeout) != 0)
tass 5:445d2fc04784 87 return 0;
tass 5:445d2fc04784 88 }*/
tass 5:445d2fc04784 89
tass 5:445d2fc04784 90 return picotcp_sendto(_sock_fd, packet, length, (struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost));
tass 5:445d2fc04784 91 }
tass 5:445d2fc04784 92
tass 5:445d2fc04784 93 // -1 if unsuccessful, else number of bytes received
tass 5:445d2fc04784 94 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) {
tass 5:445d2fc04784 95 if (_sock_fd < 0)
tass 5:445d2fc04784 96 return -1;
tass 5:445d2fc04784 97
tass 5:445d2fc04784 98 if (!_blocking) {
tass 5:445d2fc04784 99 TimeInterval timeout(_timeout);
tass 5:445d2fc04784 100 if (wait_readable(timeout) != 0)
tass 5:445d2fc04784 101 return 0;
tass 5:445d2fc04784 102 }
tass 5:445d2fc04784 103 //remote.reset_address(); why is this needed ?
tass 5:445d2fc04784 104 socklen_t remoteHostLen = sizeof(remote._remoteHost);
tass 5:445d2fc04784 105 return picotcp_recvfrom(_sock_fd, buffer, length, (struct sockaddr*) &remote._remoteHost, &remoteHostLen);
tass 5:445d2fc04784 106 }