Implement atomic increment/decrement in Cache library
Requested via issue #109
Supersedes PR #241
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
index d9af377..7e2b907 100644
--- a/system/libraries/Cache/drivers/Cache_dummy.php
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -58,9 +58,10 @@
* @param string Unique Key
* @param mixed Data to store
* @param int Length of time (in seconds) to cache the data
+ * @param bool Whether to store the raw value
* @return bool TRUE, Simulating success
*/
- public function save($id, $data, $ttl = 60)
+ public function save($id, $data, $ttl = 60, $raw = FALSE)
{
return TRUE;
}
@@ -81,6 +82,34 @@
// ------------------------------------------------------------------------
/**
+ * Increment a raw value
+ *
+ * @param string $id Cache ID
+ * @param int $offset Step/value to add
+ * @return mixed New value on success or FALSE on failure
+ */
+ public function increment($id, $offset = 1)
+ {
+ return TRUE;
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Decrement a raw value
+ *
+ * @param string $id Cache ID
+ * @param int $offset Step/value to reduce by
+ * @return mixed New value on success or FALSE on failure
+ */
+ public function decrement($id, $offset = 1)
+ {
+ return TRUE;
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
* Clean the cache
*
* @return bool TRUE, simulating success