newlib/libc/include/sys/lock.h

   1 #ifndef __SYS_LOCK_H__
   2 #define __SYS_LOCK_H__
   3
   4 /* dummy lock routines for single-threaded aps */
   5
   6 #include <newlib.h>
   7 #include <_ansi.h>
   8
   9 #if !defined(_RETARGETABLE_LOCKING)
  10
  11 typedef int _LOCK_T;
  12 typedef int _LOCK_RECURSIVE_T;
  13
  14 #define __LOCK_INIT(class,lock) static int lock = 0;
  15 #define __LOCK_INIT_RECURSIVE(class,lock) static int lock = 0;
  16 #define __lock_init(lock) ((void) 0)
  17 #define __lock_init_recursive(lock) ((void) 0)
  18 #define __lock_close(lock) ((void) 0)
  19 #define __lock_close_recursive(lock) ((void) 0)
  20 #define __lock_acquire(lock) ((void) 0)
  21 #define __lock_acquire_recursive(lock) ((void) 0)
  22 #define __lock_try_acquire(lock) ((void) 0)
  23 #define __lock_try_acquire_recursive(lock) ((void) 0)
  24 #define __lock_release(lock) ((void) 0)
  25 #define __lock_release_recursive(lock) ((void) 0)
  26
  27 #else
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 struct __lock;
  34 typedef struct __lock * _LOCK_T;
  35 #define _LOCK_RECURSIVE_T _LOCK_T
  36
  37 #define __LOCK_INIT(class,lock) extern struct __lock __lock_ ## lock; \
  38         class _LOCK_T lock = &__lock_ ## lock
  39 #define __LOCK_INIT_RECURSIVE(class,lock) __LOCK_INIT(class,lock)
  40
  41 extern void __retarget_lock_init(_LOCK_T *lock);
  42 #define __lock_init(lock) __retarget_lock_init(&lock)
  43 extern void __retarget_lock_init_recursive(_LOCK_T *lock);
  44 #define __lock_init_recursive(lock) __retarget_lock_init_recursive(&lock)
  45 extern void __retarget_lock_close(_LOCK_T lock);
  46 #define __lock_close(lock) __retarget_lock_close(lock)
  47 extern void __retarget_lock_close_recursive(_LOCK_T lock);
  48 #define __lock_close_recursive(lock) __retarget_lock_close_recursive(lock)
  49 extern void __retarget_lock_acquire(_LOCK_T lock);
  50 #define __lock_acquire(lock) __retarget_lock_acquire(lock)
  51 extern void __retarget_lock_acquire_recursive(_LOCK_T lock);
  52 #define __lock_acquire_recursive(lock) __retarget_lock_acquire_recursive(lock)
  53 extern int __retarget_lock_try_acquire(_LOCK_T lock);
  54 #define __lock_try_acquire(lock) __retarget_lock_try_acquire(lock)
  55 extern int __retarget_lock_try_acquire_recursive(_LOCK_T lock);
  56 #define __lock_try_acquire_recursive(lock) \
  57   __retarget_lock_try_acquire_recursive(lock)
  58 extern void __retarget_lock_release(_LOCK_T lock);
  59 #define __lock_release(lock) __retarget_lock_release(lock)
  60 extern void __retarget_lock_release_recursive(_LOCK_T lock);
  61 #define __lock_release_recursive(lock) __retarget_lock_release_recursive(lock)
  62
  63 #ifdef __cplusplus
  64 }
  65 #endif
  66
  67 #endif /* !defined(_RETARGETABLE_LOCKING) */
  68
  69 #endif /* __SYS_LOCK_H__ */