| Updated: October 28, 2024 |
Try to lock a thread spinlock
#include <pthread.h>
int pthread_spin_trylock(
pthread_spinlock_t * spinner );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_spin_trylock() function attempts to lock the thread spinlock specified by spinner. It returns immediately if spinner can't be locked.
If a thread attempts to lock a spinlock that it's already locked via pthread_spin_lock() or pthread_spin_trylock(), the thread deadlocks.
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |