File: mutex.h

package info (click to toggle)
android-platform-development 7.0.0%2Br33-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 30,092 kB
  • sloc: ansic: 161,291; java: 15,681; cpp: 7,721; xml: 6,419; python: 5,456; sh: 1,748; lisp: 261; ruby: 183; asm: 132; perl: 88; makefile: 22
file content (46 lines) | stat: -rw-r--r-- 1,677 bytes parent folder | download | duplicates (2)
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
/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ****************************************************************************
 ****************************************************************************/
#ifndef __LINUX_MUTEX_H
#define __LINUX_MUTEX_H

#include <linux/list.h>
#include <linux/spinlock_types.h>
#include <linux/linkage.h>
#include <linux/lockdep.h>

#include <asm/atomic.h>

struct mutex {

 atomic_t count;
 spinlock_t wait_lock;
 struct list_head wait_list;
};

struct mutex_waiter {
 struct list_head list;
 struct task_struct *task;
};

#define __DEBUG_MUTEX_INITIALIZER(lockname)
#define mutex_init(mutex)  do {   static struct lock_class_key __key;     __mutex_init((mutex), #mutex, &__key);  } while (0)
#define mutex_destroy(mutex) do { } while (0)

#define __DEP_MAP_MUTEX_INITIALIZER(lockname)

#define __MUTEX_INITIALIZER(lockname)   { .count = ATOMIC_INIT(1)   , .wait_lock = SPIN_LOCK_UNLOCKED   , .wait_list = LIST_HEAD_INIT(lockname.wait_list)   __DEBUG_MUTEX_INITIALIZER(lockname)   __DEP_MAP_MUTEX_INITIALIZER(lockname) }

#define DEFINE_MUTEX(mutexname)   struct mutex mutexname = __MUTEX_INITIALIZER(mutexname)

#define mutex_lock_nested(lock, subclass) mutex_lock(lock)

#endif