From 6f0db006ce2b792de8804b57aacc0d50179c4c40 Mon Sep 17 00:00:00 2001
From: dnomd343 <i@343.re>
Date: Thu, 11 Aug 2022 19:25:00 +0800
Subject: [PATCH] fix: avoid `pcntl_wait` blocking

---
 main.php       | 5 ++++-
 src/Daemon.php | 4 ----
 src/Logger.php | 2 +-
 3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/main.php b/main.php
index 4edf872..fe2230d 100644
--- a/main.php
+++ b/main.php
@@ -25,8 +25,11 @@ $vlmcsd = array(
 );
 
 logging::info('Loading kms-server (' . $version . ')');
+
 declare(ticks = 1);
-pcntl_signal(SIGCHLD, 'subExit'); // receive SIGCHLD signal
+pcntl_signal(SIGCHLD, function() { // receive SIGCHLD signal
+    pcntl_wait($status, WNOHANG); // avoid zombie process
+});
 
 new Process($nginx['command']);
 logging::info('Start nginx server...OK');
diff --git a/src/Daemon.php b/src/Daemon.php
index 3a19af5..c8f61aa 100644
--- a/src/Daemon.php
+++ b/src/Daemon.php
@@ -3,10 +3,6 @@
 require_once 'Logger.php';
 require_once 'Process.php';
 
-function subExit(): void {
-    pcntl_wait($status); // avoid zombie process
-}
-
 function msSleep(int $ms): void { // sleep for xxx ms
     for ($i = 0; $i < $ms; $i++) {
         usleep(1000); // split multiple times (avoid SIGCHLD signal)
diff --git a/src/Logger.php b/src/Logger.php
index 14f3cb6..1129ca4 100644
--- a/src/Logger.php
+++ b/src/Logger.php
@@ -1,6 +1,6 @@
 <?php
 
-logging::$logLevel = logging::INFO;
+logging::$logLevel = logging::DEBUG;
 
 $logColor = array(
     logging::DEBUG    => '37m', // white