pub unsafe extern "C" fn aws_hash_table_find(
map: *const aws_hash_table,
key: *const c_void,
p_elem: *mut *mut aws_hash_element
) -> c_intExpand description
Attempts to locate an element at key. If the element is found, a pointer to the value is placed in *p_elem; if it is not found, *pElem is set to NULL. Either way, AWS_OP_SUCCESS is returned.
This method does not change the state of the hash table. Therefore, it is safe to call _find from multiple threads on the same hash table, provided no mutating operations happen in parallel.
Calling code may update the value in the hash table by modifying **pElem after a successful find. However, this pointer is not guaranteed to remain usable after a subsequent call to _put, _delete, _clear, or _clean_up.