diff options
Diffstat (limited to 'update_daemon2.php')
-rwxr-xr-x | update_daemon2.php | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/update_daemon2.php b/update_daemon2.php index f2a962629..cee61bb6e 100755 --- a/update_daemon2.php +++ b/update_daemon2.php @@ -113,6 +113,14 @@ "Maybe another daemon is already running.\n"); } + // Try to lock a file in order to avoid concurrent update. + $lock_handle = make_lockfile("update_daemon.lock"); + + if (!$lock_handle) { + die("error: Can't create lockfile. ". + "Maybe another daemon is already running.\n"); + } + /* if (!pcntl_fork()) { pcntl_signal(SIGINT, 'sigint_handler'); register_shutdown_function('shutdown'); |