fix: 修复systemd socket协议、格式化代码、拆分配置常量

config.rb

@@ -0,0 +1,3 @@
+INITIAL_GRACE = 300  # 初次启动等待 300 秒
+TRY_TIMES = 3 # 尝试次数
+RST_COOLDOWN_DURATION = 200 # 重启冷却期 200 秒

main.rb

@@ -12,28 +12,20 @@
 # MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 # See the Mulan PubL v2 for more details.
 
-# main.rb 顶部添加
-begin
-  # 原有代码
-rescue => e
-  # 强制输出到stderr
-  $stderr.puts "[CRITICAL] Unhandled exception: #{e.message}"
-  $stderr.puts e.backtrace.join("\n")
-  exit 1
-end
-
+def main
   puts '              ___  __   ___      ___         ___      '
   puts ' |\/| | |\ | |__  /__` |__  |\ |  |  | |\ | |__  |    '
   puts ' |  | | | \| |___ .__/ |___ | \|  |  | | \| |___ |___ '
   puts " MineSentinel dev-rolling version by <*> S.A. [@SNOWARE] and owned by SCU team."
   puts " Copyleft (c) 2026 S.A. SNOWARE-SCU. This program is licensed under Mulan PubL v2."
-puts " E-mail: SALflake@qq.com | QQ: 758522192 | Website: https://https://swe-iss.rth1.xyz/softwares/minesentinel."
+  puts " E-mail: SALflake@qq.com | QQ: 758522192 | Website: https://swe-iss.rth1.xyz/softwares/minesentinel."
   puts
 
   require_relative 'method_executor' # 日志系统在此时初始化
   MethodExecutor.record("debug", "init", "Initialized MethodExecutor, which implements logging system and intervening functions.")
   require_relative 'server_status_detector'
   require_relative 'systemd_notifier' # 心跳系统在此时初始化
+  require_relative 'config'
   MethodExecutor.record("debug", "init", "Initialized SystemdNotifier, which implements systemd watchdog feeder.")
 
   # 确认是否具有展开干预操作的权限 如果因场景不同不需要请注释这部分内容
@@ -42,12 +34,10 @@ unless Process.euid == 0
     raise Errno::EPERM
   end
 
-
   MethodExecutor.record("info", "mainloop", "MineSentinel started, entering mainloop.")
 
   # 初次启动：MineSentinel 先于 minecraft 启动（systemd Before=），
   # 等待服务器端口就绪，避免误判为崩溃
-INITIAL_GRACE = 300  # 初次启动等待 300 秒
   MethodExecutor.record("info", "mainloop",
     "Initial startup grace period #{INITIAL_GRACE}s — waiting for server to come up...")
   grace_deadline = Time.now + INITIAL_GRACE
@@ -60,26 +50,32 @@ while Time.now < grace_deadline
     end
   end
   MethodExecutor.record("info", "mainloop", "Grace period ended.")
+  main_loop
+end
 
 # Functional mainloop.
-def main
+def main_once
+  chkrslts = []
+  for i in 0..TRY_TIMES
     chkrslt = ServerStatusDetector::MinecraftServer.self_diag
-  if chkrslt[:type]
+    chkrslts.append(chkrslt)
+  end
+  if chkrslts.all? { |chkrslt_in| chkrslt_in[:type] }
     MethodExecutor.record("debug", "mainloop", "Server health check passed.")
   else
-    MethodExecutor.record("warn", "mainloop", "Server health check FAILED: #{chkrslt[:message]}")
-    for operation in chkrslt[:operation]
-      if operation == "Record"
-        # 消息已在 self_diag 中生成，这里仅记录操作
+    for chkrslt_in in chkrslts
+      MethodExecutor.record("warn", "mainloop", "Server health check FAILED: #{chkrslt_in[:message]}")
+    end
+    MethodExecutor.record("info", "mainloop", "Checked #{TRY_TIMES} time.")
+    if chkrslts.any? { |chkrslt_in| chkrslt_in[:operation] == "Record" }
       MethodExecutor.record("warn", "mainloop", "Action: Record -> Server died!")
-      elsif operation == "ForceResetServerProcess"
+      if chkrslts.any? { |chkrslt_in| chkrslt_in[:message] == "Server died for unknown reason, and will be restarted." }
         MethodExecutor.record("info", "mainloop", "Action: ForceResetServerProcess triggered.")
         MethodExecutor.reset_minecraft_server
         # 重启后等待服务器启动（MC服务器启动通常需要30秒~2分钟）
-        cooldown_duration = 200 # 200秒冷却期
         cooldown_beg = Time.now
-        MethodExecutor.record("info", "mainloop", "Cooling down #{cooldown}s for server startup...")
-        while Time.now < cooldown_beg + cooldown_duration
+        MethodExecutor.record("info", "mainloop", "Cooling down #{RST_COOLDOWN_DURATION}s for server startup...")
+        while Time.now < cooldown_beg + RST_COOLDOWN_DURATION
           sleep 1
           SystemdNotifier.notify("WATCHDOG=1")
         end
@@ -89,9 +85,19 @@ def main
   end
 end
 
-
+def main_loop
   while true
     sleep 1.5
     SystemdNotifier.notify("WATCHDOG=1")
-  main
+    main_once
+  end
+end
+
+begin
+  main
+rescue => e
+  # 强制输出到stderr
+  $stderr.puts "[CRITICAL] Unhandled exception: #{e.message}"
+  $stderr.puts e.backtrace.join("\n")
+  exit 1
 end

method_executor.rb

@@ -89,7 +89,6 @@ class MethodExecutor
 
     while true
       sleep 0.5
-        begin
       SystemdNotifier.notify("WATCHDOG=1")
       proc_status = Process.waitpid2(pid, Process::WNOHANG)
       if proc_status # 子进程已退出，返回 [pid, status]
@@ -118,7 +117,6 @@ class MethodExecutor
         end
       end
     end
-      end
 
 
   end

server_status_detector.rb

@@ -55,7 +55,7 @@ module ServerStatusDetector
 
   class MinecraftServer < TcpServer # 继承为TcpServer编写的属性和方法
 
-    def self.self_diag()
+    def self_diag
 
       res = test_port('127.0.0.1', 25565)