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lwip/core/sys.c@0:ac1725ba162c, 2010-11-09 (annotated)
- Committer:
- segundo
- Date:
- Tue Nov 09 20:54:15 2010 +0000
- Revision:
- 0:ac1725ba162c
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| segundo | 0:ac1725ba162c | 1 | /** |
| segundo | 0:ac1725ba162c | 2 | * @file |
| segundo | 0:ac1725ba162c | 3 | * lwIP Operating System abstraction |
| segundo | 0:ac1725ba162c | 4 | * |
| segundo | 0:ac1725ba162c | 5 | */ |
| segundo | 0:ac1725ba162c | 6 | |
| segundo | 0:ac1725ba162c | 7 | /* |
| segundo | 0:ac1725ba162c | 8 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| segundo | 0:ac1725ba162c | 9 | * All rights reserved. |
| segundo | 0:ac1725ba162c | 10 | * |
| segundo | 0:ac1725ba162c | 11 | * Redistribution and use in source and binary forms, with or without modification, |
| segundo | 0:ac1725ba162c | 12 | * are permitted provided that the following conditions are met: |
| segundo | 0:ac1725ba162c | 13 | * |
| segundo | 0:ac1725ba162c | 14 | * 1. Redistributions of source code must retain the above copyright notice, |
| segundo | 0:ac1725ba162c | 15 | * this list of conditions and the following disclaimer. |
| segundo | 0:ac1725ba162c | 16 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| segundo | 0:ac1725ba162c | 17 | * this list of conditions and the following disclaimer in the documentation |
| segundo | 0:ac1725ba162c | 18 | * and/or other materials provided with the distribution. |
| segundo | 0:ac1725ba162c | 19 | * 3. The name of the author may not be used to endorse or promote products |
| segundo | 0:ac1725ba162c | 20 | * derived from this software without specific prior written permission. |
| segundo | 0:ac1725ba162c | 21 | * |
| segundo | 0:ac1725ba162c | 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| segundo | 0:ac1725ba162c | 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| segundo | 0:ac1725ba162c | 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| segundo | 0:ac1725ba162c | 25 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| segundo | 0:ac1725ba162c | 26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| segundo | 0:ac1725ba162c | 27 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| segundo | 0:ac1725ba162c | 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| segundo | 0:ac1725ba162c | 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| segundo | 0:ac1725ba162c | 30 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| segundo | 0:ac1725ba162c | 31 | * OF SUCH DAMAGE. |
| segundo | 0:ac1725ba162c | 32 | * |
| segundo | 0:ac1725ba162c | 33 | * This file is part of the lwIP TCP/IP stack. |
| segundo | 0:ac1725ba162c | 34 | * |
| segundo | 0:ac1725ba162c | 35 | * Author: Adam Dunkels <adam@sics.se> |
| segundo | 0:ac1725ba162c | 36 | * |
| segundo | 0:ac1725ba162c | 37 | */ |
| segundo | 0:ac1725ba162c | 38 | |
| segundo | 0:ac1725ba162c | 39 | #include "lwip/opt.h" |
| segundo | 0:ac1725ba162c | 40 | |
| segundo | 0:ac1725ba162c | 41 | #include "lwip/sys.h" |
| segundo | 0:ac1725ba162c | 42 | |
| segundo | 0:ac1725ba162c | 43 | /* Most of the functions defined in sys.h must be implemented in the |
| segundo | 0:ac1725ba162c | 44 | * architecture-dependent file sys_arch.c */ |
| segundo | 0:ac1725ba162c | 45 | |
| segundo | 0:ac1725ba162c | 46 | #if !NO_SYS |
| segundo | 0:ac1725ba162c | 47 | |
| segundo | 0:ac1725ba162c | 48 | /** |
| segundo | 0:ac1725ba162c | 49 | * Sleep for some ms. Timeouts are NOT processed while sleeping. |
| segundo | 0:ac1725ba162c | 50 | * |
| segundo | 0:ac1725ba162c | 51 | * @param ms number of milliseconds to sleep |
| segundo | 0:ac1725ba162c | 52 | */ |
| segundo | 0:ac1725ba162c | 53 | void |
| segundo | 0:ac1725ba162c | 54 | sys_msleep(u32_t ms) |
| segundo | 0:ac1725ba162c | 55 | { |
| segundo | 0:ac1725ba162c | 56 | if (ms > 0) { |
| segundo | 0:ac1725ba162c | 57 | sys_sem_t delaysem; |
| segundo | 0:ac1725ba162c | 58 | err_t err = sys_sem_new(&delaysem, 0); |
| segundo | 0:ac1725ba162c | 59 | if (err == ERR_OK) { |
| segundo | 0:ac1725ba162c | 60 | sys_arch_sem_wait(&delaysem, ms); |
| segundo | 0:ac1725ba162c | 61 | sys_sem_free(&delaysem); |
| segundo | 0:ac1725ba162c | 62 | } |
| segundo | 0:ac1725ba162c | 63 | } |
| segundo | 0:ac1725ba162c | 64 | } |
| segundo | 0:ac1725ba162c | 65 | |
| segundo | 0:ac1725ba162c | 66 | #endif /* !NO_SYS */ |