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Unlock a thread spinlock
#include <pthread.h>
int pthread_spin_unlock( spinlock_t * spinner );
- spinner
- A pointer to the pthread_spinlock_t object that you
want to unlock.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
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.
- EOK
- Success.
- EINVAL
- Invalid process spinlock spinner.
- EPERM
- The calling thread doesn't hold the lock.
POSIX 1003.1 THR SPI
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
pthread_spin_destroy(),
pthread_spin_init(),
pthread_spin_lock(),
pthread_spin_trylock()
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