1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*! \file include/sys/critsec.h
\brief Interface: kernel level critical sections
\author Joseph A. Woolley <jawoolley@users.sourceforge.net>
Defines types and functions used for kernel level critical sections.
*/
/*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is legOS code, released October 17, 1999.
*
* The Initial Developer of the Original Code is Markus L. Noga.
* Portions created by Markus L. Noga are Copyright (C) 1999
* Markus L. Noga. All Rights Reserved.
*
* Contributor(s): Joseph A. Woolley <jawoolley@users.sourceforge.net>
*/
#if !defined(__sys_critsec_h__)
#define __sys_critsec_h__
#if defined(__cplusplus)
extern "C" {
#endif // __cplusplus
#include <config.h>
#include <atomic.h>
#if defined(CONF_TM)
extern atomic_t kernel_critsec_count;
#define INITIALIZE_KERNEL_CRITICAL_SECTION() kernel_critsec_count=0
#define ENTER_KERNEL_CRITICAL_SECTION() atomic_inc(&kernel_critsec_count)
#define LEAVE_KERNEL_CRITICAL_SECTION() atomic_dec(&kernel_critsec_count)
#define DESTROY_KERNEL_CRITICAL_SECTION()
#else // CONF_TM
#define INITIALIZE_KERNEL_CRITICAL_SECTION()
#define ENTER_KERNEL_CRITICAL_SECTION()
#define LEAVE_KERNEL_CRITICAL_SECTION()
#define DESTROY_KERNEL_CRITICAL_SECTION()
#endif // CONF_TM
#if defined(__cplusplus)
}
#endif // __cplusplus
#endif // __sys_critsec_h__
|
