diff --git a/main.js b/main.js
index defc75d..40660f5 100644
--- a/main.js
+++ b/main.js
@@ -1,7 +1,4 @@
-import dnc from "./manager.js";
-
-const M = new dnc(process);
-
+import * as M from "./manager.js";
 
 M.addShutdownTask(()=>{
   return new Promise(function(res, rej) {
diff --git a/manager.js b/manager.js
index 15b2de8..f729ad0 100644
--- a/manager.js
+++ b/manager.js
@@ -1,81 +1,77 @@
 
-const manager =  function(process){
-  var t = this;
-  async function exitHandler(options, exitCode) {
-    t.shutdown().then(()=>{
-      setTimeout(function() {
-        process.exit();
-      }, 1000);
-    }).catch(()=>{
-      setTimeout(function() {
-        process.exit();
-      }, 10000);
-    });
-  }
-  [`SIGINT`, `SIGUSR1`, `SIGUSR2`,`SIGTERM`].forEach((eventType) => {
-    process.on(eventType, exitHandler.bind(null, eventType));
+async function exitHandler(options, exitCode) {
+  shutdown().then(()=>{
+    setTimeout(function() {
+      process.exit();
+    }, 1000);
+  }).catch(()=>{
+    setTimeout(function() {
+      process.exit();
+    }, 10000);
+  });
+}
+[`SIGINT`, `SIGUSR1`, `SIGUSR2`,`SIGTERM`].forEach((eventType) => {
+  process.on(eventType, exitHandler.bind(null, eventType));
+});
+
+var shutdownTasks = []
+
+export const addShutdownTask = function(task,maxDuration=5000){
+  shutdownTasks.push({t:task,d:maxDuration});
+};
+
+export const shutdown = function(){
+  return new Promise((res,rej)=>{
+    console.log("Shuting down ...");
+
+    var maxDuration = 1000;
+    var running = 0;
+    var timeout = null;
+
+    function mayShutdown(force=false){
+      if(running==0||force){
+        if(timeout!=null)clearInterval(timeout);
+        res();
+      }
+    }
+    running++;
+    for (var i = 0; i < shutdownTasks.length; i++) {
+      try {
+        if(shutdownTasks[i].d>maxDuration)maxDuration=shutdownTasks[i].d;
+        running++;
+        let a = shutdownTasks[i].t();
+        if(typeof a.then == "function"){
+          a.then(()=>{
+            running--;
+            mayShutdown();
+          });
+        }else{
+          running--;
+          if(shutdownTasks.length-1 == i){
+            mayShutdown();
+          }
+        }
+      } catch (e) {
+        running--;
+        mayShutdown();
+      }
+    }
+    running--;
+    timeout = setTimeout(function () {
+      timeout = null;
+      mayShutdown(true);
+    }, maxDuration);
+    mayShutdown();
+  });
+};
+export const saveShutdown = function(){
+  shutdown().then(() => {
+    setTimeout(function() { //some save time
+      process.exit();
+    }, 1000);
+  }).catch(() => {
+    setTimeout(function() { //shutdown on error with more save time
+      process.exit();
+    }, 10000);
   });
-
-  var shutdownTasks = []
-
-  t.addShutdownTask = function(task,maxDuration=5000){
-    shutdownTasks.push({t:task,d:maxDuration});
-  };
-
-  t.shutdown = function(){
-    return new Promise((res,rej)=>{
-      console.log("Shuting down ...");
-
-      var maxDuration = 1000;
-      var running = 0;
-      var timeout = null;
-
-      function mayShutdown(force=false){
-        if(running==0||force){
-          if(timeout!=null)clearInterval(timeout);
-          res();
-        }
-      }
-      running++;
-      for (var i = 0; i < shutdownTasks.length; i++) {
-        try {
-          if(shutdownTasks[i].d>maxDuration)maxDuration=shutdownTasks[i].d;
-          running++;
-          let a = shutdownTasks[i].t();
-          if(typeof a.then == "function"){
-            a.then(()=>{
-              running--;
-              mayShutdown();
-            });
-          }else{
-            running--;
-            if(shutdownTasks.length-1 == i){
-              mayShutdown();
-            }
-          }
-        } catch (e) {
-          running--;
-          mayShutdown();
-        }
-      }
-      running--;
-      timeout = setTimeout(function () {
-        timeout = null;
-        mayShutdown(true);
-      }, maxDuration);
-      mayShutdown();
-    });
-  };
-  t.saveShutdown = function(){
-    t.shutdown().then(() => {
-      setTimeout(function() { //some save time
-        process.exit();
-      }, 1000);
-    }).catch(() => {
-      setTimeout(function() { //shutdown on error with more save time
-        process.exit();
-      }, 10000);
-    });
-  }
 }
-export default manager;