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From: Gonglei <arei.gonglei@huawei.com>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: "qemu-trivial@nongnu.org" <qemu-trivial@nongnu.org>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-trivial] [PATCH 3/4] pidfile: stop making pidfile error a special case
Date: Fri, 31 Oct 2014 16:10:22 +0800	[thread overview]
Message-ID: <545343EE.70006@huawei.com> (raw)
In-Reply-To: <54534211.8050102@msgid.tls.msk.ru>

On 2014/10/31 16:02, Michael Tokarev wrote:

> 31.10.2014 10:58, Gonglei wrote:
>> On 2014/10/31 15:41, Michael Tokarev wrote:
> []
>>>>>>> +            exit(len == 1 && status == 0 ? 0 : 1);
>>>>>
>>>>> ...it is checked here, note the 'len == 1' part of the condition.
>>>>
>>>> If len != 1, the original code exit with 1, after your changes,
>>>> it will exit with 0. Right?
>>>
>>> with len != 1, the condition 'len == 1 && status == 0 ? 0 : 1'
>>
>> Ok. That's will be great if you can modify it
>> to "(len == 1 && status == 0 ) ? 0 : 1"
> 
> Well, ? operator has lowest precedence in C, && and || is higher,
> and == is even higher.  That's the basic rules of the language.
> So I don't really see why... ;)
> 
> The comment however should clear all confusion, hopefully.
> 

Hmm...

BTW, Do you receive mails subscribed form Qemu community?
Does the Qemu maillist system crash?
Since yesterday evening, my colleagues and I do not received mails.
It's too weird!

Thanks!
-Gonglei



WARNING: multiple messages have this Message-ID (diff)
From: Gonglei <arei.gonglei@huawei.com>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: "qemu-trivial@nongnu.org" <qemu-trivial@nongnu.org>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 3/4] pidfile: stop making pidfile error a special case
Date: Fri, 31 Oct 2014 16:10:22 +0800	[thread overview]
Message-ID: <545343EE.70006@huawei.com> (raw)
In-Reply-To: <54534211.8050102@msgid.tls.msk.ru>

On 2014/10/31 16:02, Michael Tokarev wrote:

> 31.10.2014 10:58, Gonglei wrote:
>> On 2014/10/31 15:41, Michael Tokarev wrote:
> []
>>>>>>> +            exit(len == 1 && status == 0 ? 0 : 1);
>>>>>
>>>>> ...it is checked here, note the 'len == 1' part of the condition.
>>>>
>>>> If len != 1, the original code exit with 1, after your changes,
>>>> it will exit with 0. Right?
>>>
>>> with len != 1, the condition 'len == 1 && status == 0 ? 0 : 1'
>>
>> Ok. That's will be great if you can modify it
>> to "(len == 1 && status == 0 ) ? 0 : 1"
> 
> Well, ? operator has lowest precedence in C, && and || is higher,
> and == is even higher.  That's the basic rules of the language.
> So I don't really see why... ;)
> 
> The comment however should clear all confusion, hopefully.
> 

Hmm...

BTW, Do you receive mails subscribed form Qemu community?
Does the Qemu maillist system crash?
Since yesterday evening, my colleagues and I do not received mails.
It's too weird!

Thanks!
-Gonglei

  reply	other threads:[~2014-10-31 15:11 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-30 15:07 [Qemu-trivial] [PATCH 0/4] cleanup -daemonize and pidfile creation a bit Michael Tokarev
2014-10-30 15:07 ` [Qemu-devel] " Michael Tokarev
2014-10-30 15:07 ` [Qemu-trivial] [PATCH 1/4] os-posix: use global daemon_pipe instead of cryptic fds[1] Michael Tokarev
2014-10-30 15:07   ` [Qemu-devel] " Michael Tokarev
2014-10-31  4:57   ` [Qemu-trivial] " Gonglei
2014-10-31  4:57     ` [Qemu-devel] " Gonglei
2014-10-30 15:07 ` [Qemu-trivial] [PATCH 2/4] os-posix: replace goto again with a proper loop Michael Tokarev
2014-10-30 15:07   ` [Qemu-devel] " Michael Tokarev
2014-10-31  4:58   ` [Qemu-trivial] " Gonglei
2014-10-31  4:58     ` [Qemu-devel] " Gonglei
2014-10-30 15:07 ` [Qemu-trivial] [PATCH 3/4] pidfile: stop making pidfile error a special case Michael Tokarev
2014-10-30 15:07   ` [Qemu-devel] " Michael Tokarev
2014-10-31  5:00   ` [Qemu-trivial] " Gonglei
2014-10-31  5:00     ` [Qemu-devel] " Gonglei
2014-10-31  7:16     ` [Qemu-trivial] " Michael Tokarev
2014-10-31  7:16       ` [Qemu-devel] " Michael Tokarev
2014-10-31  7:33       ` [Qemu-trivial] " Gonglei
2014-10-31  7:33         ` [Qemu-devel] " Gonglei
2014-10-31  7:41         ` [Qemu-trivial] " Michael Tokarev
2014-10-31  7:41           ` [Qemu-devel] " Michael Tokarev
2014-10-31  7:58           ` [Qemu-trivial] " Gonglei
2014-10-31  7:58             ` [Qemu-devel] " Gonglei
2014-10-31  8:02             ` [Qemu-trivial] " Michael Tokarev
2014-10-31  8:02               ` [Qemu-devel] " Michael Tokarev
2014-10-31  8:10               ` Gonglei [this message]
2014-10-31  8:10                 ` Gonglei
2014-10-30 15:07 ` [Qemu-trivial] [PATCH 4/4] os-posix: reorder parent notification for -daemonize Michael Tokarev
2014-10-30 15:07   ` [Qemu-devel] " Michael Tokarev
2014-10-31  5:02   ` [Qemu-trivial] " Gonglei
2014-10-31  5:02     ` [Qemu-devel] " Gonglei

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