POSIX Spin Locks option group. More...

Functions
int	pthread_spin_destroy (pthread_spinlock_t *lock)
	Destroy a spin lock.

int	pthread_spin_init (pthread_spinlock_t *lock, int pshared)
	Initialise a spin lock.

int	pthread_spin_lock (pthread_spinlock_t *lock)
	Acquire a spin lock, busy-waiting until available.

int	pthread_spin_trylock (pthread_spinlock_t *lock)
	Try to acquire a spin lock without busy-waiting.

int	pthread_spin_unlock (pthread_spinlock_t *lock)
	Release a spin lock.

Detailed Description

POSIX Spin Locks option group.

Function Documentation

int pthread_spin_destroy ( pthread_spinlock_t * lock )

Destroy a spin lock.

Parameters

lock	Spin lock to destroy.

See also: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_spin_destroy.html

Initialise a spin lock.

Parameters

lock	Spin lock to initialise.
pshared	`PTHREAD_PROCESS_SHARED` or `PTHREAD_PROCESS_PRIVATE`.

See also: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_spin_init.html

int pthread_spin_lock ( pthread_spinlock_t * lock )

Acquire a spin lock, busy-waiting until available.

Parameters

lock	Spin lock to acquire.

See also: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_spin_lock.html

int pthread_spin_trylock ( pthread_spinlock_t * lock )

Try to acquire a spin lock without busy-waiting.

Parameters

lock	Spin lock to try.

Returns: 0 on success, EBUSY if already locked, or a positive error number on failure.

See also: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_spin_trylock.html

int pthread_spin_unlock ( pthread_spinlock_t * lock )

Release a spin lock.

Parameters

lock	Spin lock to release.

See also: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_spin_unlock.html