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| author | friendica <info@friendica.com> | 2012-05-02 16:27:19 -0700 |
|---|---|---|
| committer | friendica <info@friendica.com> | 2012-05-02 16:27:19 -0700 |
| commit | 3ecde2d72f27c248eb13d53d3f601934f6baaf16 (patch) | |
| tree | 885cef4ac6c7d82681855525ac76b411eb64d5b3 | |
| parent | 8e1437ca8bebcc3ef684192833c7a9ee10755608 (diff) | |
| download | volse-hubzilla-3ecde2d72f27c248eb13d53d3f601934f6baaf16.tar.gz volse-hubzilla-3ecde2d72f27c248eb13d53d3f601934f6baaf16.tar.bz2 volse-hubzilla-3ecde2d72f27c248eb13d53d3f601934f6baaf16.zip | |
use mysql replace on cache items
| -rw-r--r-- | include/cache.php | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/include/cache.php b/include/cache.php index 3c8a3f713..360c4acbd 100644 --- a/include/cache.php +++ b/include/cache.php @@ -14,22 +14,40 @@ } public static function set($key,$value) { - $r = q("SELECT * FROM `cache` WHERE `k`='%s' limit 1", - dbesc($key) - ); - if(count($r)) { - q("UPDATE `cache` SET `v` = '%s', `updated = '%s' WHERE `k` = '%s' limit 1", - dbesc($value), - dbesc(datetime_convert()), - dbesc($key)); - } - else { - q("INSERT INTO `cache` (`k`,`v`,`updated`) VALUES ('%s','%s','%s')", + + q("REPLACE INTO `cache` (`k`,`v`,`updated`) VALUES ('%s','%s','%s')", dbesc($key), dbesc($value), dbesc(datetime_convert())); - } } + + +/* + * + * 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. + */ + +/* + * $r = q("SELECT * FROM `cache` WHERE `k`='%s' limit 1", + * dbesc($key) + * ); + * if(count($r)) { + * q("UPDATE `cache` SET `v` = '%s', `updated = '%s' WHERE `k` = '%s' limit 1", + * dbesc($value), + * dbesc(datetime_convert()), + * dbesc($key)); + * } + * else { + * q("INSERT INTO `cache` (`k`,`v`,`updated`) VALUES ('%s','%s','%s')", + * dbesc($key), + * dbesc($value), + * dbesc(datetime_convert())); + * } + * } + */ + public static function clear(){ q("DELETE FROM `cache` WHERE `updated` < '%s'", |