每次在Socket.io事件中創建具有不同變量的相同函數的多個實例

Question

我需要在socket.io事件中使用從前端傳遞的不同變量創建同一個函數的多個實例。我還需要這些變量對另一個socket.io事件可見，以便我可以從前端點擊中停止該功能。我有一切工作很好，但我只能用一個實例設置變量'bigLoop'，並需要它爲多個實例工作。我需要所有的循環能夠運行並且彼此獨立。

插座事件：

//this is what I have so far and it works great, I can start and stop at any time. And I know bigLoop is global 
 
    io.on('connection', function(connect) { 
 
     //create new loop 
 
     connect.on('createLoop', function(data) { 
 
      bigLoop = new syncLoop(data.total, function(){}, function(){}); 
 
     }); 
 
     //end loop 
 
     connect.on('endLoop', function(data) { 
 
      bigLoop.break(true); 
 
     }); 
 
    }); 
 

 

 

 
    //this is what I would like passing an array of multiple variables from the front end and creating a new syncLoop for each variable 
 
     //create new loop 
 
     connect.on('createLoop', function(data) { 
 
      //save array to variable 
 
      var newNames = data.array; 
 
      //for each variable create new syncLoop 
 
      newNames.forEach(function(newLoops) { 
 
       newloops = new syncLoop(data.total, function(){}, function() {}); 
 
      }); 
 
     }); 
 
      
 
     //end loop 
 
     connect.on('endLoop', function(data) { 
 
      //save array to variable 
 
      var endNames = data.array; 
 
      //for each variable end loop 
 
      endNames.forEach(function(endLoops){ 
 
       endLoops.break(true); 
 
      }); 
 
      
 
     }); 
 

 

 

 

 
//syncLoop function, for process and exit I have a lot more going on but did not want to write it 
 
function syncLoop(iterations, process, exit){ 
 
\t var \t index = 0, 
 
\t  done = false, 
 
\t  shouldExit = false; 
 

 
    loop = { 
 
     next:function(){ 
 
      if(done){ 
 
       if(shouldExit && exit){ 
 
        return exit(); // Exit if we're done 
 
       } 
 
      } 
 
      // If we're not finished 
 
      if(index < iterations){ 
 
       index++; // Increment our index 
 
       process(loop); // Run our process, pass in the loop 
 
      // Otherwise we're done 
 
      } else { 
 
       done = true; // Make sure we say we're done 
 
       if(exit) exit(); // Call the callback on exit 
 
      } 
 
     }, 
 
     iteration:function(){ 
 
      return index - 1; // Return the loop number we're on 
 
     }, 
 
     break:function(end){ 
 
      done = true; // End the loop 
 
      shouldExit = end; // Passing end as true means we still call the exit callback 
 
     } 
 
    }; 
 
    loop.next(); 
 
    return loop; 
 
};

我已經嘗試了很多不同的東西，我不能得到這個工作。我感謝任何幫助。謝謝。

Answer 1

如果我理解正確你的問題：

嘗試創建所有運行中的迴路的全球地圖：

// global variable 
var loops = {}; 

function createLoop(name, data) { 
    stopLoop(name); 
    loops[name] = new syncloop(/*...*/); 
} 

function stopLoop(name) { 
    if (loops[name]) { 
    loops[name].break(true); 
    delete loops[name]; // remove entry from map 
    } 
} 

變量loops將包含所有當前運行的循環，通過名稱。