[pulseaudio-discuss] [PATCH v2] module-coreaudio-device: get channel name as CFString and convert to plain C string.

Mihai Moldovan ionic at ionic.de
Mon Apr 20 10:06:19 PDT 2015

On 20.04.2015 06:39 PM, Mihai Moldovan wrote:
> I am using git format-patch. I'm also using --attach. My mail client has
> a habit of breaking long lines at a 80 character limit, so this could
> potentially destroy the patch/make it unable to apply cleanly, which is
> putting an even greater burden on the person who has to apply it in the end.
> It probably has to do with Enigmail and and I could work around it by
> not signing my mails or hoping that PGP/MIME (which I use anyway) does
> not show this weird behavior, but I prefer to sign my mails still.

On that account, see how my last answer has rewrapped and broken the
quoted patch...

>> On 2015-04-19 08:57, Mihai Moldovan wrote:
>>> [...]
>>> +/* Caveat: this function frees the CFString if conversion succeeded. */
>> I'm not actually following the reasoning. Is the CFString leaked if
>> the conversion fails, that can't be a good thing?
> It means the caller is responsible for freeing it in case conversion
> failed. Maybe the caller want to do something to rectify the situation
> or use it in some way or another after a failing conversion -- we don't
> know and it wouldn't be a good idea to just free it so it'll be unavailable.
> If however conversion succeeds, there's no need keeping it around.

One rationale I forgot to mention: for a valid CFString, conversion
shouldn't ever fail. If it did, the reference may be faulty or something
else fishy going on. In any case, we shouldn't try to call CFRelease()
on random, maybe even corrupt data...


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