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"function to analyse memory usage in the session"

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This commit is contained in:
Ralf Becker 2008-11-13 16:57:16 +00:00
parent 33d617aa8f
commit 505fe07669
1 changed files with 41 additions and 16 deletions
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57
phpgwapi/inc/class.egw_session.inc.php
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@ -38,6 +38,13 @@ if (!defined('PHP_SHLIB_PREFIX'))
* There are separate session-handler classes: egw_session_(files|memcache),
* which implement custom session handler or certain extra functionality, like eg. listing sessions,
* not available in php's session extension.
*
* If you want to analyse the memory usage in the session, you can uncomment the following call:
*
* static function encrypt($kp3)
* {
* // switch that on to analyse memory usage in the session
* //self::log_session_usage($_SESSION[self::EGW_APPSESSION_VAR],'_SESSION['.self::EGW_APPSESSION_VAR.']',true,5000);
*/
class egw_session
{
@ -241,21 +248,6 @@ class egw_session
*/
function __destruct()
{
/* foreach($GLOBALS['egw'] as $name => &$value)
{
$len = strlen(serialize($value));
if ($len > 1000) error_log(__METHOD__."() strlen($name)=$len, diff=".($len-(int)$_SESSION['lens'][$name]));
$_SESSION['lens'][$name] = $len;
if ($name == 'session')
{
foreach($value as $n => &$v)
{
$len = strlen(serialize($v));
if ($len > 1000) error_log(__METHOD__."() strlen(session->$n)=$len, diff=".($len-(int)$_SESSION['lens-sess'][$n]));
$_SESSION['lens-sess'][$n] = $len;
}
}
}*/
self::encrypt($this->kp3);
}
@ -297,6 +289,9 @@ class egw_session
*/
static function encrypt($kp3)
{
// switch that on to analyse memory usage in the session
//self::log_session_usage($_SESSION[self::EGW_APPSESSION_VAR],'_SESSION['.self::EGW_APPSESSION_VAR.']',true,5000);
if (!isset($_SESSION[self::EGW_SESSION_ENCRYPTED]) && self::init_crypt($kp3))
{
foreach(self::$egw_session_vars as $name)
@ -314,6 +309,36 @@ class egw_session
}
}
/**
* Log the usage of session-vars
*
* @param array &$arr
* @param string $label
* @param boolean $recursion=true if true call itself for every item > $limit
* @param int $limit=1000 log only differences > $limit
*/
static function log_session_usage(&$arr,$label,$recursion=true,$limit=1000)
{
if (!is_array($arr)) return;
$sizes = array();
foreach($arr as $key => &$data)
{
$sizes[$key] = strlen(serialize($data));
}
arsort($sizes,SORT_NUMERIC);
foreach($sizes as $key => $size)
{
$diff = $size - (int)$_SESSION[$label.'-sizes'][$key];
$_SESSION[$label.'-sizes'][$key] = $size;
if ($diff > $limit)
{
error_log("strlen({$label}[$key])=".egw_vfs::hsize($size).", diff=".egw_vfs::hsize($diff));
if ($recursion) self::log_session_usage($arr[$key],$label.'['.$key.']',$recursion,$limit);
}
}
}
/**
* Decrypt the variables in the session
*
@ -533,7 +558,7 @@ class egw_session
if ($reason) // called hook requests to deny the session
{
$this->reason = $this->cd_reason = $reason;
$this->log_access($this->reason,$login,$user_ip,0); // log unsuccessfull login
$this->log_access($this->reason,$login,$user_ip,0 ); // log unsuccessfull login
return false;
}
}