Function k_mutex_lock

pub unsafe extern "C" fn k_mutex_lock(
    mutex: *mut k_mutex,
    timeout: k_timeout_t,
) -> i32

@brief Lock a mutex.

This routine locks @a mutex. If the mutex is locked by another thread, the calling thread waits until the mutex becomes available or until a timeout occurs.

A thread is permitted to lock a mutex it has already locked. The operation completes immediately and the lock count is increased by 1.

Mutexes may not be locked in ISRs.

@param mutex Address of the mutex. @param timeout Waiting period to lock the mutex, or one of the special values K_NO_WAIT and K_FOREVER.

@retval 0 Mutex locked. @retval -EBUSY Returned without waiting. @retval -EAGAIN Waiting period timed out.