#include <sys/_null.h>
#include <ubixos/spinlock.h>
#include <ubixos/sched.h>
#include <string.h>

Include dependency graph for spinlock.c:

Macros
#define	atomic_add(P, V) __sync_add_and_fetch((P), (V))

#define	atomic_clear_bit(P, V) __sync_and_and_fetch((P), ~(1<<(V)))

#define	atomic_dec(P) __sync_add_and_fetch((P), -1)

#define	atomic_inc(P) __sync_add_and_fetch((P), 1)

#define	atomic_set_bit(P, V) __sync_or_and_fetch((P), 1<<(V))

#define	atomic_xadd(P, V) __sync_fetch_and_add((P), (V))

#define	barrier() asm volatile("": : :"memory")

#define	cmpxchg(P, O, N) __sync_val_compare_and_swap((P), (O), (N))

#define	cpu_relax() asm volatile("pause\n": : :"memory")

Functions
void	spinLock (spinLock_t lock)

void	spinLockInit (spinLock_t lock)

int	spinTryLock (spinLock_t lock)

void	spinUnlock (spinLock_t lock)

Macro Definition Documentation

◆ atomic_add

#define atomic_add	(	P,
		V
	)	__sync_add_and_fetch((P), (V))

Definition at line 38 of file spinlock.c.

◆ atomic_clear_bit

#define atomic_clear_bit	(	P,
		V
	)	__sync_and_and_fetch((P), ~(1<<(V)))

Definition at line 40 of file spinlock.c.

◆ atomic_dec

#define atomic_dec ( P ) __sync_add_and_fetch((P), -1)

Definition at line 37 of file spinlock.c.

◆ atomic_inc

#define atomic_inc ( P ) __sync_add_and_fetch((P), 1)

Definition at line 36 of file spinlock.c.

◆ atomic_set_bit

#define atomic_set_bit	(	P,
		V
	)	__sync_or_and_fetch((P), 1<<(V))

Definition at line 39 of file spinlock.c.

◆ atomic_xadd

#define atomic_xadd	(	P,
		V
	)	__sync_fetch_and_add((P), (V))

Definition at line 34 of file spinlock.c.

◆ barrier

#define barrier ( ) asm volatile("": : :"memory")

Definition at line 42 of file spinlock.c.

◆ cmpxchg

#define cmpxchg	(	P,
		O,
		N
	)	__sync_val_compare_and_swap((P), (O), (N))

Definition at line 35 of file spinlock.c.

◆ cpu_relax

#define cpu_relax ( ) asm volatile("pause\n": : :"memory")

Definition at line 45 of file spinlock.c.

Function Documentation

◆ spinLock()

void spinLock ( spinLock_t lock )

Definition at line 64 of file spinlock.c.

◆ spinLockInit()

void spinLockInit ( spinLock_t lock )

Definition at line 47 of file spinlock.c.

References memset().

Here is the call graph for this function:

◆ spinTryLock()

int spinTryLock ( spinLock_t lock )

Definition at line 51 of file spinlock.c.

References cmpxchg, LLOCK_FLAG, LOCKED, spinLock::locked, and NULL.

◆ spinUnlock()

void spinUnlock ( spinLock_t lock )

Definition at line 59 of file spinlock.c.

References barrier, and spinLock::locked.

Macros

Functions