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Re: Sharing and Locking [message #25831 is a reply to message #25824]

Sun, 14 March 2010 18:58

mirek is currently offline

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

gridem wrote on Sun, 14 March 2010 08:37

The above approach has objects on the heap instead of stack but it has predictable object lifetime. I think that it's the reasonable overhead to solve the considered race condition in case of object destroying.

Mirek, what do you think?

I am still not quite sure what you are trying to solve:)

What I think you are trying to do is to avoid dangling pointer. Anyway, making pointer itself dangling helps only a bit and perhaps is not a good strategy: Pointer itself can still exist, but the state of object can be "destroyed". So it may seal some references to it, but IMO is not a good way.

Now maybe my experiences are not wide enough, but I belive that so far, I had little problems with race conditions of this kind in MT code. I guess, usually the best is to make things simple and not get involved into any shared ownership, which after all is the cornerstone of U++ design.

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[Message index]

		Sharing and Locking By: gridem on Sun, 07 March 2010 09:27
		Re: Sharing and Locking By: mirek on Sun, 07 March 2010 14:40
		Re: Sharing and Locking By: gridem on Sun, 07 March 2010 16:38
		Re: Sharing and Locking By: mirek on Mon, 08 March 2010 01:42
		Re: Sharing and Locking By: gridem on Mon, 08 March 2010 10:57
		Re: Sharing and Locking By: gridem on Sun, 14 March 2010 13:37
		Re: Sharing and Locking By: mirek on Sun, 14 March 2010 18:58
		Re: Sharing and Locking By: gridem on Mon, 15 March 2010 21:26
		Re: Sharing and Locking By: mirek on Tue, 16 March 2010 06:02
		Re: Sharing and Locking By: gridem on Tue, 16 March 2010 08:04
		Re: Sharing and Locking By: mirek on Tue, 16 March 2010 23:50
		Re: Sharing and Locking By: gridem on Fri, 19 March 2010 07:44
		Re: Sharing and Locking By: mirek on Fri, 19 March 2010 07:59
		Re: Sharing and Locking By: gridem on Sat, 20 March 2010 10:21
		Re: Sharing and Locking By: mirek on Sun, 21 March 2010 07:37
		Re: Sharing and Locking By: gridem on Sun, 21 March 2010 11:39
		Re: Sharing and Locking By: mirek on Sun, 21 March 2010 14:21
		Re: Sharing and Locking By: gridem on Thu, 01 April 2010 09:14
		Re: Sharing and Locking By: mirek on Tue, 16 March 2010 06:14

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