How to interrupt the execution of a threaded process

How to interrupt the execution of a threaded process

Question:
I’ve read your previous answers and explanations about threads. I especially liked the plain-vanilla ones. But what I don’t see how to do is interrupt the execution of a threaded process. Say you fire up a long FOR loop, but you want to have a CANCEL button available to the user which will abort the loop. How do you do this?

Answer:
To exit a thread created with TThread mid-process (as in a loop), break outof the loop and immediately call Terminate. This sets the Terminated flag totrue. Following the loop you should check the Terminated status in the bodyof the Execute method; something like this:

procedure Execute;begin…some stuff  while SomeCondition do begin    …do some stuff    if CancelFlagOfSomeSort then begin      Terminate;      Break;    end;  end;  if MyTThread.Terminated then    Exit;end;
For plain-vanilla threads, all you have to do is exit out of the threadfunction. That will “kill” the thread.In either case, the most important thing you have to remember is to freeresources that you use during the course of the run. If you don’t they’llstay there and occupy memory.

Share the Post:
Heading photo, Metadata.

What is Metadata?

What is metadata? Well, It’s an odd concept to wrap your head around. Metadata is essentially the secondary layer of data that tracks details about the “regular” data. The regular

XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several