#ifndef __LINUX_SPINLOCK_H__
#define __LINUX_SPINLOCK_H__

#if defined (__GNUC__)    
typedef struct { } spinlock_t;

#define SPIN_LOCK_UNLOCKED (spinlock_t) { }
#define DEFINE_SPINLOCK(x) spinlock_t x = SPIN_LOCK_UNLOCKED
#elif defined (MSVC)
typedef struct {int no; } spinlock_t;

#define SPIN_LOCK_UNLOCKED (spinlock_t) ( 0)
#define DEFINE_SPINLOCK(x) spinlock_t x 
#else
#error "please use a right C compiler"
#endif

#define spin_lock_init(lock)             \
CYG_MACRO_START;                         \
CYG_UNUSED_PARAM(spinlock_t *, lock);    \
CYG_MACRO_END

#define spin_lock(lock)                  \
CYG_MACRO_START;                         \
CYG_UNUSED_PARAM(spinlock_t *, lock);    \
CYG_MACRO_END

#define spin_unlock(lock)                \
CYG_MACRO_START;                         \
CYG_UNUSED_PARAM(spinlock_t *, lock);    \
CYG_MACRO_END

#define spin_lock_bh(lock)               \
CYG_MACRO_START;                         \
CYG_UNUSED_PARAM(spinlock_t *, lock);    \
CYG_MACRO_END

#define spin_unlock_bh(lock)             \
CYG_MACRO_START;                         \
CYG_UNUSED_PARAM(spinlock_t *, lock);    \
CYG_MACRO_END

#endif /* __LINUX_SPINLOCK_H__ */