1 /* Copyright (c) 2002 Jeff Johnston <jjohnstn@redhat.com> */ 2 #ifndef __SYS_LOCK_H__ 3 #define __SYS_LOCK_H__ 4 5 /* dummy lock routines for single-threaded aps */ 6 7 #include <newlib.h> 8 #include <_ansi.h> 9 10 #if !defined(_RETARGETABLE_LOCKING) 11 12 typedef int _LOCK_T; 13 typedef int _LOCK_RECURSIVE_T; 14 15 #define __LOCK_INIT(lock) 16 #define __LOCK_INIT_RECURSIVE(lock) 17 #define __lock_init(lock) ((void) 0) 18 #define __lock_init_recursive(lock) ((void) 0) 19 #define __lock_close(lock) ((void) 0) 20 #define __lock_close_recursive(lock) ((void) 0) 21 #define __lock_acquire(lock) ((void) 0) 22 #define __lock_acquire_recursive(lock) ((void) 0) 23 #define __lock_try_acquire(lock) ((void) 0) 24 #define __lock_try_acquire_recursive(lock) ((void) 0) 25 #define __lock_release(lock) ((void) 0) 26 #define __lock_release_recursive(lock) ((void) 0) 27 28 #else 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 struct __lock; 35 typedef struct __lock * _LOCK_T; 36 #define _LOCK_RECURSIVE_T _LOCK_T 37 38 #define __LOCK_INIT(lock) extern struct __lock __lock_ ## lock; 39 #define __LOCK_INIT_RECURSIVE(lock) __LOCK_INIT(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 #define __LIBC_LOCK() __lock_acquire_recursive(&__lock___libc_recursive_mutex) 70 #define __LIBC_UNLOCK() __lock_release_recursive(&__lock___libc_recursive_mutex) 71 __LOCK_INIT_RECURSIVE(__libc_recursive_mutex) 72 73 #endif /* __SYS_LOCK_H__ */ 74
