Home » U++ Library support » U++ Core » PipeStream - bidirectional Stream
| Re: PipeStream - bidirectional Stream [message #39147 is a reply to message #39146] |
Tue, 19 February 2013 00:36   |
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| dolik.rce wrote on Mon, 18 February 2013 23:04 |
| mirek wrote on Mon, 18 February 2013 22:42 |
Even with circular buffer, there IMO is always range that can be expressed using rd/wrlim. And we do not know what the use of PipeStream is to be...
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Perhaps you're right. It would be a partial optimization, for the price of more complex code. I admit I was glad it just works, so I wasn't thinking about it much  I'll try to look at it.
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Ok, I found the showstopper... When you use wrlim/rdlim, the Stream functions know nothing about the fact that PipeStream is bidirectional and won't swap ptr and pptr when necessary. As far as I can tell at this late hour, it is only possible to overcome this problem by requiring user to explicitly set the state before each Get/Put operation, which is IMHO quite ugly  Or do you have any other idea? I would prefer bypassing the Stream rather than having to put SetState() call to every place where it might be needed...
Honza
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