/* $Id: atomic.h 142 2000-04-23 14:55:46Z ktk $ */

#ifndef __ARCH_I386_ATOMIC__
#define __ARCH_I386_ATOMIC__

#define LOCK

typedef struct { int counter; } atomic_t;

#define ATOMIC_INIT(i)	{ (i) }

#define atomic_read(v)		((v)->counter)
#define atomic_set(v,i)		(((v)->counter) = (i))

static void atomic_add(int i, volatile atomic_t *v);
static void atomic_sub(int i, volatile atomic_t *v);
static void atomic_inc(volatile atomic_t *v);
static void atomic_dec(volatile atomic_t *v);
static int atomic_dec_and_test(volatile atomic_t *v);
extern int atomic_add_negative(int i, volatile atomic_t *v);

/* These are x86-specific, used by some header files */
#define atomic_clear_mask(mask, addr) 

#define atomic_set_mask(mask, addr) 

#endif