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如何让线程在被释放之前完成其工作?

我正在编写一个写入事件日志的线程.当应用程序关闭(正常)时,我需要确保此线程完成其作业,在它被释放之前保存日志.如果我Free直接调用该线程,它不应该立即被销毁,它应该等到线程完成并且还有其他工作要做.

这是我如何布置我的线程的执行:

procedure TEventLogger.Execute;
var
  L: TList;
  E: PEventLog; //Custom record pointer
begin
  while not Terminated do begin //Repeat continuously until terminated
    try
      E:= nil;
      L:= LockList; //Acquire locked queue of logs to be written
      try
        if L.Count > 0 then begin //Check if any logs exist in queue
          E:= PEventLog(L[0]); //Get next log from queue
          L.Delete(0); //Remove log from queue
        end;
      finally
        UnlockList;
      end;
      if E <> nil then begin
        WriteEventLog(E); //Actual call to save log
      end; …
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delphi multithreading

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