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

Files at this revision

API Documentation at this revision

Revision 25:d63125298eb3, committed 2013-06-11

Comitter:
daniele
Date:
Tue Jun 11 23:28:50 2013 +0000
Parent:
24:8bff2b51ea3b
Child:
26:dc3e7f96338f
Child:
31:d3b2dfcc358f
Commit message:
Fixed close

Changed in this revision

Socket/bsd/stack_endpoint.cpp Show annotated file Show diff for this revision Revisions of this file
include/arch/pico_mbed.h Show annotated file Show diff for this revision Revisions of this file
include/pico_queue.h Show annotated file Show diff for this revision Revisions of this file
include/pico_socket.h Show annotated file Show diff for this revision Revisions of this file
stack/pico_stack.c Show annotated file Show diff for this revision Revisions of this file 
--- a/Socket/bsd/stack_endpoint.cpp	Tue Jun 11 21:10:23 2013 +0000
+++ b/Socket/bsd/stack_endpoint.cpp	Tue Jun 11 23:28:50 2013 +0000
@@ -189,9 +189,11 @@
 
 static void retry_close(struct stack_endpoint *ep)
 {
-  pico_socket_close(ep->s);
-  send_retval(ep, 0);
-  stack_Del(ep);
+  if (ep) {
+    pico_socket_close(ep->s);
+    send_retval(ep, 0);
+    stack_Del(ep);
+  }
 }
 
 static void retry_write(struct stack_endpoint *ep)
@@ -319,13 +321,9 @@
   
   
   
-  if (ev & PICO_SOCK_EV_CLOSE){
+  if (ev & (PICO_SOCK_EV_CLOSE | PICO_SOCK_EV_FIN)){
     printf("** CLOSE\n");
     ep->connected = 0;
-    send_error(ep);
-  }
-  if (ev & PICO_SOCK_EV_FIN) {
-      printf("** FIN\n");
   }
   
   if (ev & PICO_SOCK_EV_ERR) {
@@ -438,6 +436,7 @@
   while(1) {
     ret = stack_parse_requests();
     pico_stack_tick();
+    //Thread::wait(1);
     Thread::wait(1);
   }
 }

--- a/include/arch/pico_mbed.h	Tue Jun 11 21:10:23 2013 +0000
+++ b/include/arch/pico_mbed.h	Tue Jun 11 23:28:50 2013 +0000
@@ -10,6 +10,7 @@
 
 #ifndef PICO_SUPPORT_MBED
 #define PICO_SUPPORT_MBED
+#include <stdio.h>
 
 //#include "mbed.h"
 //#include "serial_api.h"
@@ -25,6 +26,33 @@
 #define pico_zalloc(x) calloc(x, 1)
 #define pico_free(x) free(x)
 
+#ifdef MEMORY_MEASURE // in case, comment out the two defines above me.
+extern uint32_t max_mem;
+extern uint32_t cur_mem;
+
+static inline void * pico_zalloc(int x)
+{
+    uint32_t *ptr;
+    if ((cur_mem + x )> (10 * 1024))
+        return NULL;
+        
+    ptr = (uint32_t *)calloc(x + 4, 1);
+    *ptr = (uint32_t)x;
+    cur_mem += x;
+    if (cur_mem > max_mem) {
+        max_mem = cur_mem;
+        printf("max mem: %lu\n", max_mem);
+    }
+    return (void*)(ptr + 1);
+}
+
+static inline void pico_free(void *x)
+{
+    uint32_t *ptr = (uint32_t*)(((uint8_t *)x) - 4);
+    cur_mem -= *ptr;
+    free(ptr);
+}
+#endif
 
 #define PICO_SUPPORT_MUTEX
 extern void *pico_mutex_init(void);

--- a/include/pico_queue.h	Tue Jun 11 21:10:23 2013 +0000
+++ b/include/pico_queue.h	Tue Jun 11 23:28:50 2013 +0000
@@ -9,7 +9,7 @@
 #include "pico_config.h"
 #include "pico_frame.h"
 
-#define Q_LIMIT 2048
+#define Q_LIMIT 0
 
 #ifndef NULL
 #define NULL ((void *)0)

--- a/include/pico_socket.h	Tue Jun 11 21:10:23 2013 +0000
+++ b/include/pico_socket.h	Tue Jun 11 23:28:50 2013 +0000
@@ -11,7 +11,7 @@
 #include "pico_protocol.h"
 
 //#define PICO_DEFAULT_SOCKETQ (128 * 1024)
-#define PICO_DEFAULT_SOCKETQ (2 * 1024)
+#define PICO_DEFAULT_SOCKETQ (4 * 1024)
 
 #define PICO_SHUT_RD   1
 #define PICO_SHUT_WR   2

--- a/stack/pico_stack.c	Tue Jun 11 21:10:23 2013 +0000
+++ b/stack/pico_stack.c	Tue Jun 11 23:28:50 2013 +0000
@@ -34,6 +34,10 @@
   const uint8_t PICO_ETHADDR_MCAST[6] = {0x01, 0x00, 0x5e, 0x00, 0x00, 0x00};
 #endif
 
+uint32_t cur_mem = 0;
+uint32_t max_mem = 0;
+
+
 volatile unsigned long pico_tick;
 volatile pico_err_t pico_err;