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Fix parallel research exploit (#143)

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* Fix parallel building exploit via race condition

* Fix parallel research exploit via race condition

---------

Co-authored-by: hdmaniak <[email protected]>
Co-authored-by: Catalin Novgorodschi <[email protected]>
This commit is contained in:
hdmaniak2
2026-03-24 14:25:46 +02:00
committed by GitHub
co-authored by hdmaniak Catalin Novgorodschi
parent e83985e7f7
commit 2e5f9f6169
2 changed files with 76 additions and 46 deletions
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GameEngine/Database.php
+12
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@@ -4568,6 +4568,18 @@ References: User ID/Message ID, Mode
mysqli_query($this->dblink, "SELECT RELEASE_LOCK('build_village_$wid')");
}
function getResearchLock($wid) {
$wid = (int) $wid;
$result = mysqli_query($this->dblink, "SELECT GET_LOCK('research_village_$wid', 10) AS locked");
$row = mysqli_fetch_assoc($result);
return $row['locked'] == 1;
}
function releaseResearchLock($wid) {
$wid = (int) $wid;
mysqli_query($this->dblink, "SELECT RELEASE_LOCK('research_village_$wid')");
}
/**
* Get the time required to build a specified building
*