Adding cache mechanism for bbcode. Improving cache to use apc.

This commit is contained in:
Michael Vogel 2014-02-23 15:51:57 +01:00
commit 57db109474
2 changed files with 84 additions and 63 deletions

View file

@ -2,29 +2,42 @@
/**
* cache api
*/
class Cache {
public static function get($key){
public static function get($key) {
if (function_exists("apc_fetch") AND function_exists("apc_exists"))
if (apc_exists($key))
return(apc_fetch($key));
$r = q("SELECT `v` FROM `cache` WHERE `k`='%s' limit 1",
dbesc($key)
);
if (count($r)) return $r[0]['v'];
if (count($r)) {
if (function_exists("apc_store"))
apc_store($key, $r[0]['v'], 600);
return $r[0]['v'];
}
return null;
}
public static function set($key,$value) {
q("REPLACE INTO `cache` (`k`,`v`,`updated`) VALUES ('%s','%s','%s')",
dbesc($key),
dbesc($value),
dbesc(datetime_convert()));
if (function_exists("apc_store"))
apc_store($key, $value, 600);
}
/*
/*
*
* Leaving this legacy code temporaily to see how REPLACE fares
* Leaving this legacy code temporaily to see how REPLACE fares
* as opposed to non-atomic checks when faced with fast moving key duplication.
* As a MySQL extension it isn't portable, but we're not yet very portable.
*/
@ -48,11 +61,11 @@
* }
*/
public static function clear(){
q("DELETE FROM `cache` WHERE `updated` < '%s'",
dbesc(datetime_convert('UTC','UTC',"now - 30 days")));
dbesc(datetime_convert('UTC','UTC',"now - 30 days")));
}
}