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Memory growing after every click

 
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jicman



Joined: 22 Dec 2004
Posts: 298
Location: Rochester, NY
PostPosted: Tue Dec 09, 2008 11:50 pm    Post subject: Memory growing after every click Reply with quote
Greetings and salutations!

I have this piece of code:
Code:
  private void getOpenProjects(ListView lv)
  {
    //DisplayProgressBar("start");
    ini = GetIniValues();
    //msgBox(ini.rPath);
    EveryoneChecked();
    MessageBeep(1);
    OpenProjDisplay = true;
    btnNew.enabled  = true;
    btnDelete.enabled  = true;
    btnSave.enabled  = false;
    btnDelete.enabled  = false;
    btnCopy.enabled  = false;
    RptPrefix = "Open Projects List";
    lv.focus();
    if (ini.stop)
      return false;
    lv.clear();
    char[] q = null;
    q = r"SELECT * FROM LSOpenProjects
            WHERE PClass=' Project' AND PSubClass=' Project' AND status != 'c'
            ORDER BY ProjID, PClass, PSubClass, bdate, ddate, edate; ";
    //msgBox(q);
    //_LogToASCIIFileWithTime("query.txt",q,__LINE__);
    if (Everyone.checked)
    {
      EveryoneChecked();
      dba = new SqliteDatabase(sqldba);
      Rows = dba.queryFetchAll(q);
      dba.close();
    }
    else
      Rows = db.queryFetchAll(q);

    PrepareListView(lv, Rows);
    //msgBox(std.string.toString(Rows.length));

    info.text     = myMsg; // ~ std.string.toString(Rows.length) ~ " open Projects found.";
    //myMsg         = std.string.toString(Rows.length) ~ " subProjects found.";
    error.text    = errMsg;
    FromGetProjectChildren = false;
    PMTimeToday.text = calculatePMTimeToday();
  }


That calls this other function

Code:
  protected void PrepareListView(ListView lv, Row[] Rows)
  {
    char[][] c;
    int proj = 0;
    lv.clear();
    foreach (Row row; Rows)
    {
      char[] cc;
      c = Row2CharArray(row);
      if (c[9] == " Project")
        proj++;
      lv.addRow(c);
    }
    if(lv.items.length)
      lv.ensureVisible(lv.items.length - 1);
   
    //lv.activation(1);
    myMsg = "Found " ~ std.string.toString(proj) ~ " projects ";
  }

The problem is that every time the "getOpenProjects" function is called by clicking the getOpenProjects button, the memory keeps growing, even though that is the only thing I am doing. I have done a bunch of changes to make sure that it is not my program that is adding the memory, though it could be, but how can I find out why the memory keeps growing by clicking the function? How can I reset it before every display?

thanks,

jose
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Chris Miller



Joined: 27 Mar 2004
Posts: 514
Location: The Internet
PostPosted: Wed Dec 31, 2008 10:25 pm    Post subject: Re: Memory growing after every click Reply with quote
If autoCollect is on, DFL will call the GC every once in a while. Otherwise, memory usage may climb a bit until the GC itself thinks it's a good time to collect.
However, it still may be possible that there is a memory leak in your garbage collected application. One example directly related to DFL is if you showDialog and do not dispose, it may get leaked. There are other general ways; you can search the D newsgroups for particular cases.
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