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pthread_spin_unlock()

Unlock a thread spinlock

Synopsis:

#include <pthread.h>

int pthread_spin_unlock( spinlock_t * spinner );

Arguments:

spinner

A pointer to the pthread_spinlock_t object that you want to unlock.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The pthread_spin_unlock() function unlocks the thread spinlock specified by spinner, which was locked with pthread_spin_lock() or pthread_spin_trylock().

If there are threads spinning on spinner, the spinlock becomes available, and an unspecified thread acquires the lock.

Returns:

EOK

Success.

EINVAL

Invalid process spinlock spinner.

EPERM

The calling thread doesn't hold the lock.

Classification:

POSIX 1003.1 THR SPI

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes

See also:

pthread_spin_destroy(), pthread_spin_init(), pthread_spin_lock(), pthread_spin_trylock()

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