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- <?php
- namespace OC\Memcache;
- trait CADTrait {
- abstract public function get($key);
- abstract public function remove($key);
- abstract public function add($key, $value, $ttl = 0);
-
- public function cad($key, $old) {
-
- if ($this->add($key . '_lock', true)) {
- if ($this->get($key) === $old) {
- $this->remove($key);
- $this->remove($key . '_lock');
- return true;
- } else {
- $this->remove($key . '_lock');
- return false;
- }
- } else {
- return false;
- }
- }
- public function ncad(string $key, mixed $old): bool {
-
- if ($this->add($key . '_lock', true)) {
- $value = $this->get($key);
- if ($value !== null && $value !== $old) {
- $this->remove($key);
- $this->remove($key . '_lock');
- return true;
- } else {
- $this->remove($key . '_lock');
- return false;
- }
- } else {
- return false;
- }
- }
- }
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