UbixOS V2 2.0

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
77 #include "net/opt.h"
78
79 #include "net/sys.h"
80
81 /* Most of the functions defined in sys.h must be implemented in the
82 * architecture-dependent file sys_arch.c */
83
84 #if !NO_SYS
85
86 #ifndef sys_msleep
87
92 void
93 sys_msleep(u32_t ms)
94 {
95 if (ms > 0) {
96 sys_sem_t delaysem;
97 err_t err = sys_sem_new(&delaysem, 0);
98 if (err == ERR_OK) {
99 sys_arch_sem_wait(&delaysem, ms);
100 sys_sem_free(&delaysem);
101 }
102 }
103 }
104 #endif /* sys_msleep */
105
106 #endif /* !NO_SYS */
sys.h
opt.h
sys_sem_new
err_t sys_sem_new(sys_sem_t **sem, u8_t count)
Definition: sys_arch.c:52
sys_sem_free
void sys_sem_free(sys_sem_t **sem)
Definition: sys_arch.c:75
sys_arch_sem_wait
uint32_t sys_arch_sem_wait(struct sys_sem **s, uint32_t timeout)
Definition: sys_arch.c:105
u32_t
uint32_t u32_t
Definition: arch.h:126
sys_sem
Definition: sem.h:36
sys_msleep
void sys_msleep(u32_t ms)
Definition: sys.c:93
ERR_OK
Definition: err.h:63
err_t
s8_t err_t
Definition: err.h:57