[PATCH] fix workman some bug

[millken]

diff --git a/Core/Lib/Checker.php b/Core/Lib/Checker.php
index 0018413..7489b6f 100755
--- a/Core/Lib/Checker.php
+++ b/Core/Lib/Checker.php
@@ -272,7 +272,7 @@ class Checker
     public static function checkPidFile()
     {
         // 已经有进程pid可能server已经启动
-        if(@file_get_contents(WORKERMAN_PID_FILE))
+        if(is_file(WORKERMAN_PID_FILE) && file_get_contents(WORKERMAN_PID_FILE))
         {
             \Man\Core\Master::notice("\033[33;40mWorkerman already started\033[0m", true);
             exit;
diff --git a/Core/Master.php b/Core/Master.php
index da0e084..e4c4423 100755
--- a/Core/Master.php
+++ b/Core/Master.php
@@ -344,6 +344,7 @@ class Master
                 if(self::createOneWorker($worker_name) == 0)
                 {
                     self::notice("Worker exit unexpected");
+                    sleep(5);
                     exit(500);
                 }
             }
diff --git a/Core/SocketWorker.php b/Core/SocketWorker.php
index d469096..51d3691 100755
--- a/Core/SocketWorker.php
+++ b/Core/SocketWorker.php
@@ -201,7 +201,7 @@ abstract class SocketWorker extends AbstractWorker
         $this->installSignal();

         // 触发该worker进程onStart事件，该进程整个生命周期只触发一次
-        if($this->onStart())
+        if(!$this->onStart())
         {
             return;
         }
@@ -230,7 +230,7 @@ abstract class SocketWorker extends AbstractWorker
     public function stop()
     {
         // 触发该worker进程onStop事件
-        if($this->onStop())
+        if(!$this->onStop())
         {
             return;
         }
diff --git a/bin/workermand b/bin/workermand
index 9a687f5..43fa9a5 100755
--- a/bin/workermand
+++ b/bin/workermand
@@ -172,7 +172,8 @@ function force_kill()

 function stop_and_wait($wait_time = 6)
 {
-    $pid = @file_get_contents(WORKERMAN_PID_FILE);
+    $pid = "";
+    if(is_file(WORKERMAN_PID_FILE)) $pid = file_get_contents(WORKERMAN_PID_FILE);
     if(empty($pid))
     {
         //exit("server not running?\n");

[walkor]

感谢你的issue，以上并非是workerman的bug。