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/* Copyright (c) 2002 Jeff Johnston <jjohnstn@redhat.com> */
#ifndef __SYS_LOCK_H__
#define __SYS_LOCK_H__
#include <sys/cdefs.h>
#ifdef __SINGLE_THREAD
/* dummy lock routines for single-threaded aps */
#define __LOCK_INIT(lock)
#define __LOCK_INIT_RECURSIVE(lock)
#define __lock_init(lock) ((void)0)
#define __lock_init_recursive(lock) ((void)0)
#define __lock_close(lock) ((void)0)
#define __lock_close_recursive(lock) ((void)0)
#define __lock_acquire(lock) ((void)0)
#define __lock_acquire_recursive(lock) ((void)0)
#define __lock_release(lock) ((void)0)
#define __lock_release_recursive(lock) ((void)0)
#else
_BEGIN_STD_C
struct __lock;
typedef struct __lock *_LOCK_T;
#define _LOCK_RECURSIVE_T _LOCK_T
#define __LOCK_INIT(lock) extern struct __lock __lock_##lock;
#define __LOCK_INIT_RECURSIVE(lock) __LOCK_INIT(lock)
void __retarget_lock_init(_LOCK_T *lock);
void __retarget_lock_init_recursive(_LOCK_T *lock);
void __retarget_lock_close(_LOCK_T lock);
void __retarget_lock_close_recursive(_LOCK_T lock);
void __retarget_lock_acquire(_LOCK_T lock);
void __retarget_lock_acquire_recursive(_LOCK_T lock);
void __retarget_lock_release(_LOCK_T lock);
void __retarget_lock_release_recursive(_LOCK_T lock);
#define __lock_init(lock) __retarget_lock_init(&lock)
#define __lock_init_recursive(lock) __retarget_lock_init_recursive(&lock)
#define __lock_close(lock) __retarget_lock_close(lock)
#define __lock_close_recursive(lock) __retarget_lock_close_recursive(lock)
#define __lock_acquire(lock) __retarget_lock_acquire(lock)
#define __lock_acquire_recursive(lock) __retarget_lock_acquire_recursive(lock)
#define __lock_release(lock) __retarget_lock_release(lock)
#define __lock_release_recursive(lock) __retarget_lock_release_recursive(lock)
_END_STD_C
#endif /* !defined(__SINGLE_THREAD) */
#define __LIBC_LOCK() __lock_acquire_recursive(&__lock___libc_recursive_mutex)
#define __LIBC_UNLOCK() __lock_release_recursive(&__lock___libc_recursive_mutex)
__LOCK_INIT_RECURSIVE(__libc_recursive_mutex)
#endif /* __SYS_LOCK_H__ */
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