Linux man pthread_mutex_trylock

pthread_mutex_trylock is a function in Linux man pages that attempts to lock a mutex object. It is a non-blocking function that returns immediately, either locking the mutex and returning zero, or not locking the mutex and returning a non-zero value. The function prototype is as follows:

#include <pthread.h>

int pthread_mutex_trylock(pthread_mutex_t *mutex);

Here, `mutex` is a pointer to the mutex object that you want to lock. If the mutex is already locked by another thread, `pthread_mutex_trylock` will return a non-zero value (typically `EBUSY`), and the mutex remains unchanged. If the mutex is successfully locked, the function will return zero.

It's important to note that `pthread_mutex_trylock` differs from `pthread_mutex_lock`, as the latter blocks the calling thread until the mutex becomes available, while `pthread_mutex_trylock` returns immediately regardless of the mutex's state.

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