65 lines
1.5 KiB
PHP
65 lines
1.5 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
function LockIsActive($Table,$Id)
|
||
|
|
{
|
||
|
|
$Ret=1;
|
||
|
|
global $GlobalMysqlHandler;
|
||
|
|
global $GlobalLockAutoReleaseTime;
|
||
|
|
|
||
|
|
$LockQuery="SELECT `LockId`, `LockTime` FROM `$Table` WHERE `Id` = $Id";
|
||
|
|
$LockQuery=mysqli_query($GlobalMysqlHandler, $LockQuery);
|
||
|
|
|
||
|
|
if ($LockQuery)
|
||
|
|
{
|
||
|
|
if (mysqli_num_rows($LockQuery))
|
||
|
|
{
|
||
|
|
$Lock = mysqli_fetch_array($LockQuery);
|
||
|
|
if (!$Lock['LockId']
|
||
|
|
|| ($Lock['LockId']==UserGetId())
|
||
|
|
|| ($Lock['LockTime']<(time()-$GlobalLockAutoReleaseTime))
|
||
|
|
)
|
||
|
|
{ $Ret=0; }
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ $Ret=0; }
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ ErrorLog("[lock.php] Can not fetch lock fields in table \"$Table\" at id $Id"); }
|
||
|
|
|
||
|
|
return $Ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
function LockActivate($Table,$Id)
|
||
|
|
{
|
||
|
|
$Ret=0;
|
||
|
|
global $GlobalMysqlHandler;
|
||
|
|
|
||
|
|
if (!LockIsActive($Table,$Id))
|
||
|
|
{
|
||
|
|
$LockQuery="UPDATE `$Table` SET `LockId` = '".UserGetId()."', `LockTime` = '".time()."' WHERE `Id` =$Id";
|
||
|
|
if (mysqli_query($GlobalMysqlHandler, $LockQuery))
|
||
|
|
{ $Ret=1; }
|
||
|
|
else
|
||
|
|
{ ErrorLog("[lock.php] Can not update lock fields in table \"$Table\" at id $Id"); }
|
||
|
|
}
|
||
|
|
|
||
|
|
return $Ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
function LockRelease($Table,$Id)
|
||
|
|
{
|
||
|
|
$Ret=0;
|
||
|
|
global $GlobalMysqlHandler;
|
||
|
|
|
||
|
|
if (!LockIsActive($Table,$Id))
|
||
|
|
{
|
||
|
|
$LockQuery="UPDATE `$Table` SET `LockId` = '0', `LockTime` = '0' WHERE `Id` =$Id";
|
||
|
|
if (mysqli_query($GlobalMysqlHandler, $LockQuery))
|
||
|
|
{ $Ret=1; }
|
||
|
|
else
|
||
|
|
{ ErrorLog("[lock.php] Can not update lock fields in table \"$Table\" at id $Id"); }
|
||
|
|
}
|
||
|
|
|
||
|
|
return $Ret;
|
||
|
|
}
|
||
|
|
?>
|