Try to lock a thread spinlock
#include <pthread.h> int pthread_spin_trylock( pthread_spinlock_t * spinner );
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.
POSIX 1003.1 THR SPI
pthread_spin_destroy(), pthread_spin_init(), pthread_spin_lock(), pthread_spin_unlock()