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

Diff: Socket/UDPSocket.cpp

Revision:
35:6078073547bb
Parent:
20:3fa3db9fd4a4
Child:
39:8d4d653d94bd
--- a/Socket/UDPSocket.cpp	Thu Jun 20 13:48:41 2013 +0000
+++ b/Socket/UDPSocket.cpp	Fri Jun 21 08:47:35 2013 +0000
@@ -46,8 +46,9 @@
 int UDPSocket::bind(int port) {
     if (init_socket(SOCK_DGRAM) < 0)
         return -1;
-    
+
     struct sockaddr_in localHost; 
+
     std::memset(&localHost, 0, sizeof(localHost));
     
     localHost.sin_family = AF_INET;
@@ -74,33 +75,26 @@
 
 // -1 if unsuccessful, else number of bytes written
 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) {
-    if (_ep < 0)
+    if (!_ep)
     {
         printf("Error on socket descriptor \n");
         return -1;
     }
     
-    /* This is not needed for our udp sock ?
-    if (_blocking) {
-        TimeInterval timeout(_timeout);
-        if (wait_writable(timeout) != 0)
-            return 0;
-    }*/
-    
-    return picotcp_sendto(_ep, packet, length, (struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost));
+    return picotcp_sendto(_ep, packet, length, (struct sockaddr *) &remote._remoteHost, sizeof(struct sockaddr_in));
 }
 
 // -1 if unsuccessful, else number of bytes received
 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) {
-    if (_ep < 0)
+    
+    if (!_ep)
         return -1;
     
-    if (!_blocking) {
-        TimeInterval timeout(_timeout);
-        if (wait_readable(timeout) != 0)
-            return 0;
-    }
-    //remote.reset_address(); why is this needed ?
+    TimeInterval timeout(!_blocking ? _timeout : osWaitForever);
+    if (wait_readable(timeout) != 0)
+        return 0;
+    
+
     socklen_t remoteHostLen = sizeof(remote._remoteHost);
     return picotcp_recvfrom(_ep, buffer, length, (struct sockaddr*) &remote._remoteHost, &remoteHostLen);
 }