1. Reduce the size of the heap memory 2. Change the TCP segment size 3. Disable UDP + DHCP + DNS 4. Change the configuration of the TCP/IP thread

Dependents:   EthernetInterface

Fork of lwip by mbed official

Revision:
2:fcd6ac34b3f8
Parent:
1:6e52445ea8c8
Child:
3:9a63dd787415
--- a/core/sys.c	Fri Jun 22 10:00:27 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,66 +0,0 @@
-/**
- * @file
- * lwIP Operating System abstraction
- *
- */
-
-/*
- * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * This file is part of the lwIP TCP/IP stack.
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- */
-
-#include "lwip/opt.h"
-
-#include "lwip/sys.h"
-
-/* Most of the functions defined in sys.h must be implemented in the
- * architecture-dependent file sys_arch.c */
-
-#if !NO_SYS
-
-/**
- * Sleep for some ms. Timeouts are NOT processed while sleeping.
- *
- * @param ms number of milliseconds to sleep
- */
-void
-sys_msleep(u32_t ms)
-{
-  if (ms > 0) {
-    sys_sem_t delaysem;
-    err_t err = sys_sem_new(&delaysem, 0);
-    if (err == ERR_OK) {
-      sys_arch_sem_wait(&delaysem, ms);
-      sys_sem_free(&delaysem);
-    }
-  }
-}
-
-#endif /* !NO_SYS */