spinlock.h File Reference

#include "internal.h"
#include "atomic-ops.h"

Go to the source code of this file.

Classes
struct	uv_spinlock_t

Macros
#define	UV_SPINLOCK_INITIALIZER   { 0 }

Functions
	UV_UNUSED (static void uv_spinlock_init(uv_spinlock_t *spinlock))
	UV_UNUSED (static int uv_spinlock_trylock(uv_spinlock_t *spinlock))

Macro Definition Documentation

UV_SPINLOCK_INITIALIZER

#define UV_SPINLOCK_INITIALIZER   { 0 }

Definition at line 22 of file spinlock.h.

Function Documentation

UV_UNUSED() [1/2]

UV_UNUSED

(

static int

uv_spinlock_trylockuv_spinlock_t *spinlock

)

Definition at line 45 of file spinlock.h.

                                                                   {
  /* TODO(bnoordhuis) Maybe change to a ticket lock to guarantee fair queueing.
   * Not really critical until we have locks that are (frequently) contended
   * for by several threads.
   */
  return 0 == cmpxchgi(&spinlock->lock, 0, 1);
}

References uv_spinlock_t::lock.

UV_UNUSED() [2/2]

UV_UNUSED

(

static void

uv_spinlock_inituv_spinlock_t *spinlock

)

Definition at line 33 of file spinlock.h.

                                                                 {
  ACCESS_ONCE(int, spinlock->lock) = 0;
}

References ACCESS_ONCE, and uv_spinlock_t::lock.