Attempt to lock a mutex
#include <pthread.h> int pthread_mutex_trylock( pthread_mutex_t* mutex );
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_mutex_trylock() function attempts to lock the mutex mutex, but doesn't block the calling thread if the mutex is already locked.
POSIX 1003.1 THR
pthread_mutex_lock(), pthread_mutex_timedlock(), pthread_mutex_unlock(), pthread_mutexattr_settype()
“Mutexes: mutual exclusion locks” in the QNX Neutrino Microkernel chapter of the System Architecture guide