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Code Issues Releases Wiki Activity

adds locking

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This commit is contained in:
Lucas Woltmann 2016-08-01 14:51:52 +02:00
parent 897d70ca5c
commit f0ac644d7e
2 changed files with 12 additions and 3 deletions
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10
libs/loggingLib.php
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@ -9,8 +9,8 @@
// and tutors.
//============================================================================
define ("STUDENTLOGFILE", "logs/ESE2013_studentLog.txt");
define ("TUTORLOGFILE", "logs/ESE2013_tutorLog.txt");
define ("STUDENTLOGFILE", "logs/ESE_studentLog.txt");
define ("TUTORLOGFILE", "logs/ESE_tutorLog.txt");
/**
* Reads all question data out of a provided log file array that has been split by new lines.
@ -178,6 +178,7 @@
// otherwise read the file and split the string at each new line
$fileData = fread($handle, $length);
$lines = explode("\n", $fileData);
fclose($handle);
// begin parsing of the file, the beginning is the second line, because the
// first should contains the disclaimer
$index = 1;
@ -231,7 +232,10 @@
// each comment is escapd by a new line containing three tilde characters
$fileData = $fileData . "\n" . $comment . "\n~~~";
// write the generated data to the file and close it
// use exclusive lock
flock($handle, LOCK_EX);
fwrite($handle, $fileData);
flock($handle, LOCK_UN);
fclose($handle);
return true;
}
@ -301,4 +305,4 @@
if (array_key_exists("comment", $formData) && trim($formData["comment"]) != "")
array_push($commentData, $formData["comment"]);
}
?>
?>