mtx_trylock

int mtx_trylock( mtx_t *mutex );

Tries to lock the mutex pointed to by mutex without blocking. Returns immediately if the mutex is already locked.

Prior calls to mtx_unlock on the same mutex synchronize-with this operation (if this operation succeeds), and all lock/unlock operations on any given mutex form a single total order (similar to the modification order of an atomic).

Parameters

Return value

thrd_success if successful, thrd_busy if the mutex has already been locked or due to a spurious failure to acquire an available mutex (since C17), thrd_error if an error occurs.

References

• C11 standard (ISO/IEC 9899:2011):
• 7.26.4.5 The mtx_trylock function (p: 382)

See also