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Embedded C project:18/12/2014
Dependencies: DS1307 TextLCD mbed
NetServices/lwip/core/sys.c
- Committer:
- ninoderkinderen
- Date:
- 2014-12-18
- Revision:
- 0:8d87bc453349
File content as of revision 0:8d87bc453349:
/** * @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 */