ReactOS  0.4.14-dev-323-g6fe6a88
sys.c
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1 
7 /*
8  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without modification,
12  * are permitted provided that the following conditions are met:
13  *
14  * 1. Redistributions of source code must retain the above copyright notice,
15  * this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright notice,
17  * this list of conditions and the following disclaimer in the documentation
18  * and/or other materials provided with the distribution.
19  * 3. The name of the author may not be used to endorse or promote products
20  * derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
25  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31  * OF SUCH DAMAGE.
32  *
33  * This file is part of the lwIP TCP/IP stack.
34  *
35  * Author: Adam Dunkels <adam@sics.se>
36  *
37  */
38 
39 #include "lwip/opt.h"
40 
41 #include "lwip/sys.h"
42 
43 /* Most of the functions defined in sys.h must be implemented in the
44  * architecture-dependent file sys_arch.c */
45 
46 #if !NO_SYS
47 
48 #ifndef sys_msleep
49 
54 void
56 {
57  if (ms > 0) {
58  sys_sem_t delaysem;
59  err_t err = sys_sem_new(&delaysem, 0);
60  if (err == ERR_OK) {
61  sys_arch_sem_wait(&delaysem, ms);
62  sys_sem_free(&delaysem);
63  }
64  }
65 }
66 #endif /* sys_msleep */
67 
68 #endif /* !NO_SYS */
void sys_sem_free(sys_sem_t *sem)
Definition: sys_arch.c:77
err_t sys_sem_new(sys_sem_t *sem, u8_t count)
Definition: sys_arch.c:51
s8_t err_t
Definition: err.h:47
#define ERR_OK
Definition: err.h:52
unsigned long u32_t
Definition: cc.h:25
#define err(...)
u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout)
Definition: sys_arch.c:91
void sys_msleep(u32_t ms)
Definition: sys.c:55