Attempt to lock a mutex
#include <pthread.h> int pthread_mutex_trylock( pthread_mutex_t* mutex );
libc
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.
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |