Stop Function From executing after condition is met

My html page fires off 2 php scripts, one to perform a task and another to开发者_JAVA技巧 poll a log file and show results on the html page. After the 'updatestock.php' has finished how do I stop the getStatus() process?

  <script type="text/javascript">
    $(function() {
        startProcess();
        getStatus();

    });

    function startProcess() {

      $("#done").load('updatestock.php');

    }

    function getStatus() {

      $("#status").load('getstatus.php');
        setTimeout("getStatus()",2000);

    }

    </script>

---

You'd use clearTimeout:

// persistent variable needed
var timeout = 0;
$(function() {
    startProcess();
    getStatus();

});

function startProcess() {
  // second parameter of load = completion callback
  $("#done").load('updatestock.php',function()
  { 
      // clearTimeout will stop the next getStatus from firing.
      clearTimeout(timeout); 
      timeout = -1;
  });

}

function getStatus() {
  // just in case. You never know what's cached.
  // (the ids for setTimeout are positive).
  if( timeout < 0 ) return; 
  $("#status").load('getstatus.php');
  // sets the ID of the current timeout.
  timeout = setTimeout("getStatus()",2000);

}

---

Use the callback from the load() method to set a flag and then check for it in your getStatus() method:

$(function() {
    startProcess();
    getStatus();

    var flag = false;
});

function startProcess() {

    $("#done").load('updatestock.php', function() {

        flag = true;

    });

}

function getStatus() {

    if ( flag ) return false;

    $("#status").load('getstatus.php');
    setTimeout("getStatus()",2000);

}

---

var stopProcess = false;


function startProcess() {

    $("#done").load('updatestock.php', function() {

        stopProcess  = true;

    });

}

function getStatus() {

    if ( stopProcess){
        return false;
    }

    $("#status").load('getstatus.php');
    setTimeout("getStatus()",2000);

}

---

Put the delayed call to getStatus in the callback for load, and use an if statement that determines whether to call it or not based on what getstatus.php returns. It could be a certain response code or bit of data, e.g. "finished": true in a JSON response.