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MDL-30026 dml - fix sqlsrv support for session locks

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This commit is contained in:
Eloy Lafuente (stronk7) 2011-11-16 01:27:56 +01:00
parent fe41ba7489
commit f8cd596aae
1 changed files with 12 additions and 1 deletions
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13
lib/dml/sqlsrv_native_moodle_database.php
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@ -1301,7 +1301,18 @@ class sqlsrv_native_moodle_database extends moodle_database {
$timeoutmilli = $timeout * 1000;
$fullname = $this->dbname.'-'.$this->prefix.'-session-'.$rowid;
$sql = "sp_getapplock '$fullname', 'Exclusive', 'Session', $timeoutmilli";
// While this may work using proper {call sp_...} calls + binding +
// executing + consuming recordsets, the solution used for the mssql
// driver is working perfectly, so 100% mimic-ing that code.
// $sql = "sp_getapplock '$fullname', 'Exclusive', 'Session', $timeoutmilli";
$sql = "BEGIN
DECLARE @result INT
EXECUTE @result = sp_getapplock @Resource='$fullname',
@LockMode='Exclusive',
@LockOwner='Session',
@LockTimeout='$timeoutmilli'
SELECT @result
END";
$this->query_start($sql, null, SQL_QUERY_AUX);
$result = sqlsrv_query($this->sqlsrv, $sql);
$this->query_end($result);