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Re: Sharing and Locking [message #25690 is a reply to message #25678]

Mon, 08 March 2010 01:42

mirek is currently offline

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

gridem wrote on Sun, 07 March 2010 10:38

Mirek, thank you for your answer.

luzr wrote on Sun, 07 March 2010 16:40

1) Ptr and Pte are VERY different beasts as compared to shared_ptr (but you probably know that).

Yes, it different but tries to solve the same kind of problems IMO.

Well, you can say that, but it is a bit far-stretched IMO. Pte/Ptr are solely for solving dangling pointer issue. Unlike shared_ptr (correct me if I am wrong), Ptr can point to stack objects and most of time they really do.

Quote:

I think that shared_ptr has more cleared semantics than Pte/Ptr. May be the reason of this is that I used shared_ptr a lot before and try to use Pte/Ptr like shared_ptr.

I wonder how you can even do that? Smile

Smile

Quote:

So I mean that Pte uses Mutex (more precisely, StaticMutex) and in general it can have some problems in high concurency application. Lock-free implementation like atomic operations produces better performance results in general.

Yes, this correct, Pte/Ptr is not great perfomance-wise. (OTOH, Mutex is just two atomic operations Smile

Smile

[Updated on: Mon, 08 March 2010 01:42]

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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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