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-rw-r--r--cron.php36
1 files changed, 29 insertions, 7 deletions
diff --git a/cron.php b/cron.php
index f13b284b818..a351572fcda 100644
--- a/cron.php
+++ b/cron.php
@@ -23,9 +23,18 @@
// Unfortunately we need this class for shutdown function
class my_temporary_cron_class {
public static $sent = false;
+ public static $lockfile = "";
+ public static $keeplock = false;
}
+// We use this function to handle (unexpected) shutdowns
function handleUnexpectedShutdown() {
+ // Delete lockfile
+ if( !my_temporary_cron_class::$keeplock && file_exists( my_temporary_cron_class::$lockfile )){
+ unlink( my_temporary_cron_class::$lockfile );
+ }
+
+ // Say goodbye if the app did not shutdown properly
if( !my_temporary_cron_class::$sent ) {
if( OC::$CLI ) {
echo 'Unexpected error!'.PHP_EOL;
@@ -48,7 +57,7 @@ if( !OC_Config::getValue( 'installed', false )) {
register_shutdown_function('handleUnexpectedShutdown');
// Exit if background jobs are disabled!
-$appmode = OC_Appconfig::getValue( 'core', 'backgroundjobs_mode', 'ajax' );
+$appmode = OC_BackgroundJob::getType();
if( $appmode == 'none' ) {
my_temporary_cron_class::$sent = true;
if( OC::$CLI ) {
@@ -61,29 +70,42 @@ if( $appmode == 'none' ) {
}
if( OC::$CLI ) {
+ // Create lock file first
+ my_temporary_cron_class::$lockfile = OC_Config::getValue( "datadirectory", OC::$SERVERROOT.'/data' ).'/cron.lock';
+
+ // We call ownCloud from the CLI (aka cron)
if( $appmode != 'cron' ) {
- OC_Appconfig::setValue( 'core', 'backgroundjobs_mode', 'cron' );
+ // Use cron in feature!
+ OC_BackgroundJob::setType('cron' );
}
// check if backgroundjobs is still running
- $pid = OC_Appconfig::getValue( 'core', 'backgroundjobs_pid', false );
- if( $pid !== false ) {
- // FIXME: check if $pid is still alive (*nix/mswin). if so then exit
+ if( file_exists( my_temporary_cron_class::$lockfile )){
+ my_temporary_cron_class::$keeplock = true;
+ my_temporary_cron_class::$sent = true;
+ echo "Another instance of cron.php is still running!";
+ exit( 1 );
}
- // save pid
- OC_Appconfig::setValue( 'core', 'backgroundjobs_pid', getmypid());
+
+ // Create a lock file
+ touch( my_temporary_cron_class::$lockfile );
// Work
OC_BackgroundJob_Worker::doAllSteps();
}
else{
+ // We call cron.php from some website
if( $appmode == 'cron' ) {
+ // Cron is cron :-P
OC_JSON::error( array( 'data' => array( 'message' => 'Backgroundjobs are using system cron!')));
}
else{
+ // Work and success :-)
OC_BackgroundJob_Worker::doNextStep();
OC_JSON::success();
}
}
+
+// done!
my_temporary_cron_class::$sent = true;
exit();