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@5:445d2fc04784, 2013-05-31 (annotated)

Committer:
tass
Date:
Fri May 31 11:34:03 2013 +0000
Revision:
5:445d2fc04784
Child:
18:c6f67fcfc62a
Integrated mbed friendly sockets

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 5:445d2fc04784 31 #include "pico_bsd_layer.h"
tass 5:445d2fc04784 32
tass 5:445d2fc04784 33 #include <cstring>
tass 5:445d2fc04784 34
tass 5:445d2fc04784 35 using std::memset;
tass 5:445d2fc04784 36
tass 5:445d2fc04784 37 UDPSocket::UDPSocket() {
tass 5:445d2fc04784 38 }
tass 5:445d2fc04784 39
tass 5:445d2fc04784 40 int UDPSocket::init(void) {
tass 5:445d2fc04784 41 return init_socket(SOCK_DGRAM);
tass 5:445d2fc04784 42 }
tass 5:445d2fc04784 43
tass 5:445d2fc04784 44 // Server initialization
tass 5:445d2fc04784 45 int UDPSocket::bind(int port) {
tass 5:445d2fc04784 46 if (init_socket(SOCK_DGRAM) < 0)
tass 5:445d2fc04784 47 return -1;
tass 5:445d2fc04784 48
tass 5:445d2fc04784 49 struct sockaddr_in localHost;
tass 5:445d2fc04784 50 std::memset(&localHost, 0, sizeof(localHost));
tass 5:445d2fc04784 51
tass 5:445d2fc04784 52 localHost.sin_family = AF_INET;
tass 5:445d2fc04784 53 localHost.sin_port = short_be(port);
tass 5:445d2fc04784 54 localHost.sin_addr.s_addr = INADDR_ANY;
tass 5:445d2fc04784 55
tass 5:445d2fc04784 56 if (picotcp_bind(_sock_fd, (struct sockaddr *) &localHost, (socklen_t)sizeof(localHost)) < 0) {
tass 5:445d2fc04784 57 close();
tass 5:445d2fc04784 58 return -1;
tass 5:445d2fc04784 59 }
tass 5:445d2fc04784 60
tass 5:445d2fc04784 61 return 0;
tass 5:445d2fc04784 62 }
tass 5:445d2fc04784 63
tass 5:445d2fc04784 64 int UDPSocket::join_multicast_group(EthernetInterface& eth, const char* address) {
tass 5:445d2fc04784 65
tass 5:445d2fc04784 66 return picotcp_join_multicast(_sock_fd,address,eth.getIPAddress());
tass 5:445d2fc04784 67 }
tass 5:445d2fc04784 68
tass 5:445d2fc04784 69 int UDPSocket::set_broadcasting(void) {
tass 5:445d2fc04784 70 int option = 1;
tass 5:445d2fc04784 71 return set_option(SOL_SOCKET, SO_BROADCAST, &option, sizeof(option));
tass 5:445d2fc04784 72 }
tass 5:445d2fc04784 73
tass 5:445d2fc04784 74 // -1 if unsuccessful, else number of bytes written
tass 5:445d2fc04784 75 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) {
tass 5:445d2fc04784 76 if (_sock_fd < 0)
tass 5:445d2fc04784 77 {
tass 5:445d2fc04784 78 printf("Error on socket descriptor \n");
tass 5:445d2fc04784 79 return -1;
tass 5:445d2fc04784 80 }
tass 5:445d2fc04784 81
tass 5:445d2fc04784 82 /* This is not needed for our udp sock ?
tass 5:445d2fc04784 83 if (_blocking) {
tass 5:445d2fc04784 84 TimeInterval timeout(_timeout);
tass 5:445d2fc04784 85 if (wait_writable(timeout) != 0)
tass 5:445d2fc04784 86 return 0;
tass 5:445d2fc04784 87 }*/
tass 5:445d2fc04784 88
tass 5:445d2fc04784 89 return picotcp_sendto(_sock_fd, packet, length, (struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost));
tass 5:445d2fc04784 90 }
tass 5:445d2fc04784 91
tass 5:445d2fc04784 92 // -1 if unsuccessful, else number of bytes received
tass 5:445d2fc04784 93 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) {
tass 5:445d2fc04784 94 if (_sock_fd < 0)
tass 5:445d2fc04784 95 return -1;
tass 5:445d2fc04784 96
tass 5:445d2fc04784 97 if (!_blocking) {
tass 5:445d2fc04784 98 TimeInterval timeout(_timeout);
tass 5:445d2fc04784 99 if (wait_readable(timeout) != 0)
tass 5:445d2fc04784 100 return 0;
tass 5:445d2fc04784 101 }
tass 5:445d2fc04784 102 //remote.reset_address(); why is this needed ?
tass 5:445d2fc04784 103 socklen_t remoteHostLen = sizeof(remote._remoteHost);
tass 5:445d2fc04784 104 return picotcp_recvfrom(_sock_fd, buffer, length, (struct sockaddr*) &remote._remoteHost, &remoteHostLen);
tass 5:445d2fc04784 105 }