mtx_lock

From cppreference.com
< c | thread
Defined in header <threads.h>
int mtx_lock( mtx_t* mutex );
(since C11)

Blocks the current thread until the mutex pointed to by mutex is locked.

The behavior is undefined if the current thread has already locked the mutex and the mutex is not recursive.

[edit] Parameters

mutex - pointer to the mutex to lock

[edit] Return value

thrd_success if successful, thrd_error otherwise.

[edit] See also

blocks until locks a mutex or times out
(function)
locks a mutex or returns without blocking if already locked
(function)
unlocks a mutex
(function)