NAME

pthread_spin_destroy - destroy a spin lock

LIBRARY

POSIX Thread Library (libpthread, -lpthread)

SYNOPSIS



int pthread_spin_destroy(pthread_spinlock_t *lock)

DESCRIPTION

The pthread_spin_destroy() function is used to destroy a spin lock previously created with pthread_spin_init().

RETURN VALUES

If successful, the pthread_spin_destroy() function will return zero. Otherwise an error number will be returned to indicate the error.

ERRORS

The pthread_spin_destroy() function may fail if:

[EBUSY]
The system has detected an attempt to destroy the object referenced by lock while it is locked.

[EINVAL]
The value specified by lock is invalid.

SEE ALSO

pthread_spin_init(3), pthread_spin_lock(3), pthread_spin_trylock(3), pthread_spin_unlock(3)

STANDARDS

pthread_spin_destroy() conforms to IEEE Std 1003.1-2001 (``POSIX.1'') .

CAVEATS

Applications using spinlocks are vulnerable to the effects of priority inversion. Applications using real-time threads (SCHED_FIFO, SCHED_RR) should not use these interfaces. Outside carefully controlled environments, priority inversion with spinlocks can lead to system deadlock. Mutexes are preferable in nearly every possible use case.