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From: "Seebs" <seebs@seebs.net>
To: openembedded-core <openembedded-core@lists.openembedded.org>
Subject: Re: [OE-core] [PATCH pseudo 4/4] Do not return address of local variable
Date: Wed, 28 Jul 2021 15:53:48 -0500	[thread overview]
Message-ID: <20210728155348.7c13a0ee@seebsdell> (raw)
In-Reply-To: <CAJ86T=WvqW64bxW+qWon5ahuyJMqy4H=nhJBhUfwy9jKM4X8SQ@mail.gmail.com>

On Wed, 28 Jul 2021 13:49:17 -0700
Andre McCurdy <armccurdy@gmail.com> wrote:

> If the caller only cares about yes/no then how about returning 1/0
> instead of a pointer?

Other callers are actually using the response, because the pseudo_msg_t*
returned from this is how, say, OP_STAT responds with the stat
information it got from the server. It's just chroot, specifically, that
wants to know that the client accepted-and-processed the chroot, but
there's no meaningful additional information past that.

I suppose in theory pseudo_client_op could be split into one function
for ops with message returns and another for ops with only
success/failure, or "just ignored", but it doesn't seem rewarding.

In Go, I'd probably have done it as
	func (c *PseudoClient) Op(whatever goes here) (*Message, error)
and this would just be returning (nil, nil) or (nil,
some-meaningful-error) in the chroot case, but here we are in C with
single return values. :)

-s

  reply	other threads:[~2021-07-28 20:53 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27 11:49 [PATCH pseudo 1/4] Remove -fno-strict-aliasing and -Wno-deprecated-declarations Damian Wrobel
2021-07-27 11:49 ` [PATCH pseudo 2/4] Do not pass null argument to pseudo_diag() Damian Wrobel
2021-07-27 15:48   ` [OE-core] " Seebs
2021-07-27 11:49 ` [PATCH pseudo 3/4] Use -pthread instead of -lpthread Damian Wrobel
2021-07-27 11:49 ` [PATCH pseudo 4/4] Do not return address of local variable Damian Wrobel
2021-07-27 15:47   ` [OE-core] " Seebs
2021-07-27 16:30     ` Damian Wrobel
2021-07-27 16:52       ` Seebs
2021-07-28  9:36         ` Damian Wrobel
2021-07-28 20:16           ` Seebs
2021-07-28 20:49             ` Andre McCurdy
2021-07-28 20:53               ` Seebs [this message]
2021-07-29 12:37             ` [OE-core] [PATCH pseudo 4/4] Do not return address of local variable - unverified Damian Wrobel
2021-07-29 15:08               ` Seebs
2021-07-27 15:49 ` [OE-core] [PATCH pseudo 1/4] Remove -fno-strict-aliasing and -Wno-deprecated-declarations Seebs
2021-07-27 16:35   ` Damian Wrobel
2021-07-27 16:46     ` Seebs

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