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From: Alexander Turenko <alexander.turenko@tarantool.org>
To: Konstantin Osipov <kostja@tarantool.org>
Cc: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>,
	tarantool-patches@freelists.org,
	Morgan-iv <ivushkinalex@gmail.com>
Subject: [tarantool-patches] Re: [PATCH] box: add tuple:size function
Date: Wed, 17 Oct 2018 21:20:25 +0300	[thread overview]
Message-ID: <20181017182025.43hjuyankc3bcwm3@tkn_work_nb> (raw)
In-Reply-To: <20181017181447.GC28587@chai>

On Wed, Oct 17, 2018 at 09:14:47PM +0300, Konstantin Osipov wrote:
> * Vladislav Shpilevoy <v.shpilevoy@tarantool.org> [18/10/17 21:12]:
> 
> > Also, some people can use it right now to allocate a
> > buffer of a correct size before calling box_tuple_to_buf.
> > I understand, that box_tuple_to_buf(tuple, NULL, 0) returns
> > bsize as well, but some people could miss it, or just use
> > box_tuple_bsize because it looks better when you write like
> > this:
> > 
> >     size = box_tuple_bsize(tuple)
> >     buf = alloc(size)
> >     box_tuple_to_buf(tuple, buf, size)
> > 
> > than like this:
> > 
> >     size = box_tuple_to_buf(tuple, NULL, 0) // <- difference
> >     buf = alloc(size)
> >     box_tuple_to_buf(tuple, buf, size)
> > 
> > Even if we close eyes on the fact, that a user of
> > the first way will allocate more data than needed,
> > imagine, that then he does something like this:
> > 
> >     send(sockfd, buf, size)
> > 
> > Now, he send some garbage uninitialized data of 14
> > bytes at the end of buf.
> 
> Is there any known use?
> 

https://github.com/search?p=1&q=box_tuple_bsize&type=Code

One seems to be the real (ok, more or less real) usage:
https://github.com/rtsisyk/tarantool-rust

> -- 
> Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
> http://tarantool.io - www.twitter.com/kostja_osipov
> 

  reply	other threads:[~2018-10-17 18:20 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-27 17:55 [tarantool-patches] " AlexeyIvushkin
2018-10-03 14:20 ` [tarantool-patches] " Vladislav Shpilevoy
2018-10-03 15:05   ` Vladislav Shpilevoy
2018-10-05 10:23 ` [tarantool-patches] " Vladimir Davydov
2018-10-06 13:58   ` [tarantool-patches] " Vladislav Shpilevoy
2018-10-08 10:16     ` Vladimir Davydov
2018-10-10 10:25       ` Vladislav Shpilevoy
2018-10-16 18:21 ` Konstantin Osipov
2018-10-17  7:28   ` Alexander Turenko
2018-10-17 15:29     ` Konstantin Osipov
2018-10-17 15:50       ` Alexander Turenko
2018-10-18 18:11         ` Konstantin Osipov
2018-10-18 18:15           ` Alexander Turenko
2018-10-17 18:06       ` Vladislav Shpilevoy
2018-10-17 18:10         ` Vladislav Shpilevoy
2018-10-17 18:14         ` Konstantin Osipov
2018-10-17 18:20           ` Alexander Turenko [this message]
2018-10-17 20:36           ` Vladislav Shpilevoy

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