ndk/platforms/android-16/arch-arm/usr/include/linux/mutex.h

   1 /****************************************************************************
   2  ****************************************************************************
   3  ***
   4  ***   This header was automatically generated from a Linux kernel header
   5  ***   of the same name, to make information necessary for userspace to
   6  ***   call into the kernel available to libc.  It contains only constants,
   7  ***   structures, and macros generated from the original header, and thus,
   8  ***   contains no copyrightable information.
   9  ***
  10  ****************************************************************************
  11  ****************************************************************************/
  12 #ifndef __LINUX_MUTEX_H
  13 #define __LINUX_MUTEX_H
  14
  15 #include <linux/list.h>
  16 #include <linux/spinlock_types.h>
  17 #include <linux/linkage.h>
  18 #include <linux/lockdep.h>
  19
  20 #include <asm/atomic.h>
  21
  22 struct mutex {
  23
  24  atomic_t count;
  25  spinlock_t wait_lock;
  26  struct list_head wait_list;
  27 };
  28
  29 struct mutex_waiter {
  30  struct list_head list;
  31  struct task_struct *task;
  32 };
  33
  34 #define __DEBUG_MUTEX_INITIALIZER(lockname)
  35 #define mutex_init(mutex)  do {   static struct lock_class_key __key;     __mutex_init((mutex), #mutex, &__key);  } while (0)
  36 #define mutex_destroy(mutex) do { } while (0)
  37
  38 #define __DEP_MAP_MUTEX_INITIALIZER(lockname)
  39
  40 #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) }
  41
  42 #define DEFINE_MUTEX(mutexname)   struct mutex mutexname = __MUTEX_INITIALIZER(mutexname)
  43
  44 #define mutex_lock_nested(lock, subclass) mutex_lock(lock)
  45
  46 #endif