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: stack/pico_socket.c

Revision:
137:a1c8bfa9d691
Parent:
134:cc4e6d2654d9
Child:
138:0a7a449980e6
--- a/stack/pico_socket.c	Fri Jan 17 10:13:51 2014 +0100
+++ b/stack/pico_socket.c	Fri Feb 07 11:21:12 2014 +0100
@@ -702,6 +702,7 @@
 #ifdef PICO_SUPPORT_TCP
     if(s->parent)
         s->parent->number_of_pending_conn--;
+
 #endif
 
     s->state = PICO_SOCKET_STATE_CLOSED;
@@ -2230,12 +2231,16 @@
             return -1;
 
         /* if no activity, force the socket into closing state */
+        /* DLA: Why? This seems off-specs. */
+#ifdef TCP_OFF_SPECS
         if( TCP_STATE(s) == PICO_SOCKET_STATE_TCP_ESTABLISHED )
         {
             s->wakeup(PICO_SOCK_EV_CLOSE, s);
             pico_socket_close(s);
             s->timestamp = PICO_TIME_MS();
         }
+
+#endif
     }
 
     return 0;
@@ -2413,22 +2418,29 @@
                 if (s->wakeup) {
                     /* dbg("SOCKET ERROR FROM ICMP NOTIFICATION. (icmp code= %d)\n\n", code); */
                     switch(code) {
+                    case PICO_ICMP_UNREACH_NET:
+                        pico_err = PICO_ERR_ENETUNREACH;
+                        break;
+
+                    case PICO_ICMP_UNREACH_HOST:
+                        pico_err = PICO_ERR_EHOSTUNREACH;
+                        break;
+
                     case PICO_ICMP_UNREACH_PROTOCOL:
-                        pico_err = PICO_ERR_EPROTO;
+                        pico_err = PICO_ERR_ENOPROTOOPT;
                         break;
 
                     case PICO_ICMP_UNREACH_PORT:
                         pico_err = PICO_ERR_ECONNREFUSED;
                         break;
 
-                    case PICO_ICMP_UNREACH_NET:
                     case PICO_ICMP_UNREACH_NET_PROHIB:
                     case PICO_ICMP_UNREACH_NET_UNKNOWN:
                         pico_err = PICO_ERR_ENETUNREACH;
                         break;
 
                     default:
-                        pico_err = PICO_ERR_EHOSTUNREACH;
+                        pico_err = PICO_ERR_EOPNOTSUPP;
                     }
                     s->state |= PICO_SOCKET_STATE_SHUT_REMOTE;
                     s->wakeup(PICO_SOCK_EV_ERR, s);