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Re: Job package: A lightweight multithreading tool, using promise/future mechanism [message #48760 is a reply to message #48759]

Mon, 11 September 2017 00:25

Oblivion is currently offline

Oblivion
Messages: 1112
Registered: August 2007

Senior Contributor

Quote:

That one is a borderline to impossible.

The problem are all those destructors that need to called. It is hard to abort thread that is does not know about it...

Ah no, what I mean is setting a unique flag for each thread (maybe using ThreadId), so that it can be checked from within like IsShutdownThreads.
(I do this with Job:Cancel() method and IsJobCancelled() global function, by keeping an index of their IDs, which are integer numbers, incremented with each new thread, using a thread local variable as the unique id.)
I was just talking about signalling the shutdown to specific targets so that user can design his/her MT code and handle its shutdown conditions easily.

And this is exactly where Job comes handy. It is a higher level interface, a convenience wrapper, if yow will, with a simpler return semantics, error management, and a more refined shutdown mechanism. With a reasonably small overhead.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Mon, 11 September 2017 11:40]

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[Message index]

		Job package: A lightweight worker thread for non-blocking operations. By: Oblivion on Sun, 10 September 2017 12:29
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: mirek on Sun, 10 September 2017 15:08
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: mirek on Sun, 10 September 2017 15:56
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: Oblivion on Sun, 10 September 2017 17:05
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: Oblivion on Sun, 10 September 2017 19:08
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: mirek on Sun, 10 September 2017 20:13
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: Oblivion on Sun, 10 September 2017 21:16
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: mirek on Mon, 11 September 2017 00:06
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: Oblivion on Mon, 11 September 2017 00:25
		RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Sun, 17 September 2017 23:20
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Mon, 18 September 2017 08:23
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Mon, 18 September 2017 08:29
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 19 September 2017 00:01
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 19 September 2017 08:37
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 19 September 2017 08:53
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 19 September 2017 10:12
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 19 September 2017 08:12
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 19 September 2017 10:15
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 19 September 2017 10:24
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 19 September 2017 11:12
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 19 September 2017 12:31
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 19 September 2017 13:01
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Sat, 23 September 2017 14:17
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Sat, 07 October 2017 15:03
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Sat, 07 October 2017 15:51
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Sat, 07 October 2017 16:04
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Sun, 08 October 2017 15:01
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 10 October 2017 11:51
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 10 October 2017 16:10
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 10 October 2017 17:02
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Tue, 10 October 2017 20:51
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Tue, 10 October 2017 23:48
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Wed, 11 October 2017 09:23
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Wed, 11 October 2017 09:42
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Wed, 11 October 2017 09:47
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Wed, 11 October 2017 09:50
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: mirek on Wed, 11 October 2017 19:30
		Re: RE: Job package: A scope-bound worker thread for non-blocking operations. By: Oblivion on Wed, 11 October 2017 20:14
		Re: Job package: A lightweight multithreading tool, using promise/future mechanism By: mirek on Sun, 10 September 2017 20:09

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