Check if the daemon pid file can be written

diff --git a/bin/daemon.php b/bin/daemon.php
index cd774fe..1a604d7 100755 (executable)
--- a/bin/daemon.php
+++ b/bin/daemon.php
@@ -163,9 +163,15 @@ if (!$foreground) {
                exit(1);
        } elseif ($pid) {
                // The parent process continues here
+               file_put_contents($pidfile, $pid);
+               if (!is_readable($pidfile)) {
+                       echo "Pid file wasn't written.\n";
+                       Logger::warning('Could not store pid file');
+                       posix_kill($pid, SIGTERM);
+                       exit(1);
+               }
                echo 'Child process started with pid ' . $pid . ".\n";
                Logger::notice('Child process started', ['pid' => $pid]);
-               file_put_contents($pidfile, $pid);
                exit(0);
        }