Method get_mtime

salt/utils/mmap_cache.py:1409–1439

Return the mtime (Unix timestamp, float seconds) for *key*, or ``None`` if the key does not exist. This reads only the index — no heap access required.

(self, key)

            return default

    def get_mtime(self, key):
        """
        Return the mtime (Unix timestamp, float seconds) for *key*, or
        ``None`` if the key does not exist.

        This reads only the index — no heap access required.
        """
        with self._thread_lock:
            if not self.open(write=False):
                return None

            key_bytes = salt.utils.stringutils.to_bytes(key)[: self.key_size]
            h = self._hash(key_bytes)
            data_size = self.size - 1

            for i in range(data_size):
                slot = ((h - 1 + i) % data_size) + 1
                offset = slot * self.slot_size
                status = self._mm[offset]

                if status == EMPTY:
                    return None
                if status == DELETED:
                    continue
                if self._read_slot_key(offset) != key_bytes:
                    continue

                _, _, mtime_ns = self._read_slot_pointer(offset)
                return mtime_ns / 1e9

            return None

    def delete(self, key):
        """Mark *key* as DELETED in the index. Heap bytes become unreachable."""