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Fix marketplace race condition

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hdmaniak
2026-03-26 10:42:24 +01:00
parent 0684a60c67
commit 8c3a2138cc
2 changed files with 49 additions and 4 deletions
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GameEngine/Database.php
+18
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@@ -5599,6 +5599,24 @@ References: User ID/Message ID, Mode
return self::$merchantsUseCountCache[$vid];
}
/***************************
Function to acquire/release MySQL advisory lock for merchant operations
Prevents race conditions when sending merchants concurrently
***************************/
function getMerchantLock($vid, $timeout = 10)
{
$lockName = TB_PREFIX . 'merchant_' . (int)$vid;
$result = mysqli_query($this->dblink, "SELECT GET_LOCK('$lockName', $timeout) AS lock_acquired");
$row = mysqli_fetch_assoc($result);
return $row['lock_acquired'] == 1;
}
function releaseMerchantLock($vid)
{
$lockName = TB_PREFIX . 'merchant_' . (int)$vid;
mysqli_query($this->dblink, "SELECT RELEASE_LOCK('$lockName')");
}
function getMovement($type, $village, $mode, $use_cache = true) {
$array_passed = is_array($village);