Method list_keys

salt/utils/mmap_cache.py:1479–1512

Return all keys currently in the cache. Uses the roster file for O(occupied) lookup, reading only the key field from the index (no heap access).

(self)

        return self.get(key, default=None) is not None

    def list_keys(self):
        """
        Return all keys currently in the cache.

        Uses the roster file for O(occupied) lookup, reading only the key
        field from the index (no heap access).
        """
        with self._thread_lock:
            if not self.open(write=False):
                return []
            slots = self._roster_read()
            if not slots:
                return []

            ret = []
            for slot in slots:
                if slot == 0 or slot >= self.size:
                    continue
                offset = slot * self.slot_size
                if self._mm[offset] != OCCUPIED:
                    continue
                raw = self._mm[
                    offset + self._key_off : offset + self._key_off + self.key_size
                ]
                null_pos = raw.find(b"\x00")
                key_bytes = raw[:null_pos] if null_pos != -1 else raw
                if not key_bytes:
                    continue
                try:
                    ret.append(key_bytes.decode("utf-8"))
                except UnicodeDecodeError:
                    ret.append(salt.utils.stringutils.to_unicode(key_bytes))

            return ret

    def list_items(self):
        """