add process locked notice to the debug output

2 years ago · 2a843449e0
1 changed files with 1 additions and 0 deletions
--- a/crontab/crawler.php
+++ b/crontab/crawler.php
@ -5,6 +5,7 @@ $semaphore = sem_get(crc32('crontab.crawler'), 1);
 if (false === sem_acquire($semaphore, true)) {
  echo 'Process locked by another thread.' . PHP_EOL;
  exit;
 }