kolibrios/contrib/sdk/sources/newlib/libc/include/sys/lock.h
Sergey Semyonov (Serge) e6fe081453 newlib-2.4.0
git-svn-id: svn://kolibrios.org@6536 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-09-27 20:37:49 +00:00

48 lines
1.4 KiB
C

#ifndef _SYS_LOCK_H_
#define _SYS_LOCK_H_
#include <sys/cdefs.h>
#include <stddef.h>
#include <sys/gthr.h>
typedef __gthread_mutex_t _LOCK_T;
typedef __gthread_recursive_mutex_t _LOCK_RECURSIVE_T;
#define _MUTEX_INITIALIZER { 0, -1 }
#define _MUTEX_RECURSIVE_INITIALIZER { 0,-1,0,0 }
#define __LOCK_INIT(_qualifier, _designator) \
_qualifier _LOCK_T _designator = _MUTEX_INITIALIZER
#define __LOCK_INIT_RECURSIVE(_qualifier, _designator) \
_qualifier _LOCK_RECURSIVE_T _designator = _MUTEX_RECURSIVE_INITIALIZER
static inline int __libc_lock_acquire(_LOCK_T *lock)
{
if(lock->handle == -1)
__gthread_mutex_init_function(lock);
return __gthread_mutex_lock(lock);
}
static inline int __libc_lock_acquire_recursive(_LOCK_RECURSIVE_T *lock)
{
if(lock->handle == -1)
__gthread_recursive_mutex_init_function(lock);
return __gthread_recursive_mutex_lock(lock);
}
#define __lock_acquire(_lock) __libc_lock_acquire(&_lock)
#define __lock_release(_lock) __gthread_mutex_unlock(&_lock)
#define __lock_init_recursive(_lock) __gthread_recursive_mutex_init_function(&_lock)
#define __lock_acquire_recursive(_lock) __libc_lock_acquire_recursive(&_lock)
#define __lock_release_recursive(_lock) __gthread_recursive_mutex_unlock(&_lock)
#define __lock_close_recursive(_lock) __gthread_recursive_mutex_destroy(&_lock)
#endif /* _SYS_LOCK_H_ */