return $ok;
}
+
+ /**
+ * Construct a cache key.
+ *
+ * @since 1.27
+ * @param string $keyspace
+ * @param array $args
+ * @return string
+ */
+ public function makeKeyInternal( $keyspace, $args ) {
+ // WinCache keys have a maximum length of 150 characters. From that,
+ // subtract the number of characters we need for the keyspace and for
+ // the separator character needed for each argument. To handle some
+ // custom prefixes used by thing like WANObjectCache, limit to 125.
+ // NOTE: Same as in memcached, except the max key length there is 255.
+ $charsLeft = 125 - strlen( $keyspace ) - count( $args );
+
+ $args = array_map(
+ function ( $arg ) use ( &$charsLeft ) {
+ // 33 = 32 characters for the MD5 + 1 for the '#' prefix.
+ if ( $charsLeft > 33 && strlen( $arg ) > $charsLeft ) {
+ $arg = '#' . md5( $arg );
+ }
+
+ $charsLeft -= strlen( $arg );
+ return $arg;
+ },
+ $args
+ );
+
+ if ( $charsLeft < 0 ) {
+ return $keyspace . ':BagOStuff-long-key:##' . md5( implode( ':', $args ) );
+ }
+
+ return $keyspace . ':' . implode( ':', $args );
+ }
}