ndk/android-ndk-r4/darwin/platforms/android-8/arch-x86/usr/include/linux/spinlock_types.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_SPINLOCK_TYPES_H
  13 #define __LINUX_SPINLOCK_TYPES_H
  14
  15 #include <linux/lockdep.h>
  16
  17 #include <linux/spinlock_types_up.h>
  18
  19 typedef struct {
  20  raw_spinlock_t raw_lock;
  21 } spinlock_t;
  22
  23 #define SPINLOCK_MAGIC 0xdead4ead
  24
  25 typedef struct {
  26  raw_rwlock_t raw_lock;
  27 } rwlock_t;
  28
  29 #define RWLOCK_MAGIC 0xdeaf1eed
  30
  31 #define SPINLOCK_OWNER_INIT ((void *)-1L)
  32
  33 #define SPIN_DEP_MAP_INIT(lockname)
  34
  35 #define RW_DEP_MAP_INIT(lockname)
  36
  37 #define __SPIN_LOCK_UNLOCKED(lockname)   (spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED,   SPIN_DEP_MAP_INIT(lockname) }
  38 #define __RW_LOCK_UNLOCKED(lockname)   (rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED,   RW_DEP_MAP_INIT(lockname) }
  39
  40 #define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
  41 #define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init)
  42
  43 #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
  44 #define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x)
  45
  46 #endif