* aiocb member aio_offset is off_t which is a signed 32bit int
@ 2014-06-30 10:51 Jonny Grant
[not found] ` <CAGc9Evc1oZkCYfYAkYU+fNA=9-Q+T+sgdj8qWuTctZjjvUdxEA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 4+ messages in thread
From: Jonny Grant @ 2014-06-30 10:51 UTC (permalink / raw)
To: Michael Kerrisk; +Cc: linux-man-u79uwXL29TY76Z2rM5mHXA
Hello mtk
Is it worth clarifying something on this page:
http://man7.org/linux/man-pages/man7/aio.7.html
off_t aio_offset; /* File offset */
Could clarify that off_t on a 32bit system will be a signed 32bit
integer, meaning the maximum seek size is 2GB.
I think this means that aio can only be used to access files up to
2GB. There isn't an off64_t version like lseek64()
Regards, Jon
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* Re: aiocb member aio_offset is off_t which is a signed 32bit int
[not found] ` <CAGc9Evc1oZkCYfYAkYU+fNA=9-Q+T+sgdj8qWuTctZjjvUdxEA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2015-04-12 8:03 ` Michael Kerrisk (man-pages)
[not found] ` <CAKgNAkj5nh7=yVAOps6mPva3A93qtkTDMrMBmYbXAN4AAi_+2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 4+ messages in thread
From: Michael Kerrisk (man-pages) @ 2015-04-12 8:03 UTC (permalink / raw)
To: Jonny Grant; +Cc: linux-man
Hi Jonny,
On 30 June 2014 at 12:51, Jonny Grant <jg-hus3n9K41k0@public.gmane.org> wrote:
> Hello mtk
>
> Is it worth clarifying something on this page:
>
> http://man7.org/linux/man-pages/man7/aio.7.html
>
> off_t aio_offset; /* File offset */
>
> Could clarify that off_t on a 32bit system will be a signed 32bit
> integer, meaning the maximum seek size is 2GB.
>
> I think this means that aio can only be used to access files up to
> 2GB.
I don't believe this is true. See <aio.h> and the defintion of this field there.
Cheers,
Michael
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: aiocb member aio_offset is off_t which is a signed 32bit int
[not found] ` <CAKgNAkj5nh7=yVAOps6mPva3A93qtkTDMrMBmYbXAN4AAi_+2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2015-04-30 22:11 ` Jonny Grant
[not found] ` <CAGc9EvcOSPb5f9kU3TeP-MU1FT-j=DRmnSNs4xZV_8fnAYdTTA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 4+ messages in thread
From: Jonny Grant @ 2015-04-30 22:11 UTC (permalink / raw)
To: Michael Kerrisk-manpages; +Cc: linux-man
On 12 April 2015 at 09:03, Michael Kerrisk (man-pages)
<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hi Jonny,
>
> On 30 June 2014 at 12:51, Jonny Grant <jg-hus3n9K41k0@public.gmane.org> wrote:
>> Hello mtk
>>
>> Is it worth clarifying something on this page:
>>
>> http://man7.org/linux/man-pages/man7/aio.7.html
>>
>> off_t aio_offset; /* File offset */
>>
>> Could clarify that off_t on a 32bit system will be a signed 32bit
>> integer, meaning the maximum seek size is 2GB.
>>
>> I think this means that aio can only be used to access files up to
>> 2GB.
>
> I don't believe this is true. See <aio.h> and the defintion of this field there.
>
> Cheers,
>
> Michael
Hi Michael
ok, many thanks.
BTW, the link at bottom of aio.7 is 403:
http://www.squid-cache.org/~adrian/Reprint-Pulavarty-OLS2003.pdf
My own opinion is that links change regularly.. so often simpler to avoid them.
I used this online tool to check the page, that was the only error
http://validator.w3.org/checklink
I used Chrome, it has an insecure yellow triangle for the site
https://www.kernel.org/doc/man-pages/
Seems to be because the site is using StartCom Class 2 Primary which
cannot be completely verified as no public audit records. Also content
is loaded from non https connection on the page on
https://www.kernel.org/doc/man-pages/
--
Jonny jg-hus3n9K41k0@public.gmane.org
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: aiocb member aio_offset is off_t which is a signed 32bit int
[not found] ` <CAGc9EvcOSPb5f9kU3TeP-MU1FT-j=DRmnSNs4xZV_8fnAYdTTA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2015-05-06 12:28 ` Michael Kerrisk (man-pages)
0 siblings, 0 replies; 4+ messages in thread
From: Michael Kerrisk (man-pages) @ 2015-05-06 12:28 UTC (permalink / raw)
To: Jonny Grant; +Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w, linux-man
On 05/01/2015 12:11 AM, Jonny Grant wrote:
> On 12 April 2015 at 09:03, Michael Kerrisk (man-pages)
> <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> Hi Jonny,
>>
>> On 30 June 2014 at 12:51, Jonny Grant <jg-hus3n9K41k0@public.gmane.org> wrote:
>>> Hello mtk
>>>
>>> Is it worth clarifying something on this page:
>>>
>>> http://man7.org/linux/man-pages/man7/aio.7.html
>>>
>>> off_t aio_offset; /* File offset */
>>>
>>> Could clarify that off_t on a 32bit system will be a signed 32bit
>>> integer, meaning the maximum seek size is 2GB.
>>>
>>> I think this means that aio can only be used to access files up to
>>> 2GB.
>>
>> I don't believe this is true. See <aio.h> and the defintion of this field there.
>>
>> Cheers,
>>
>> Michael
>
> Hi Michael
>
> ok, many thanks.
>
> BTW, the link at bottom of aio.7 is 403:
> http://www.squid-cache.org/~adrian/Reprint-Pulavarty-OLS2003.pdf
>
> My own opinion is that links change regularly.. so often simpler to avoid them.
Hi Jonny,
I've fixed the link.
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-05-06 12:28 UTC | newest]
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2014-06-30 10:51 aiocb member aio_offset is off_t which is a signed 32bit int Jonny Grant
[not found] ` <CAGc9Evc1oZkCYfYAkYU+fNA=9-Q+T+sgdj8qWuTctZjjvUdxEA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-04-12 8:03 ` Michael Kerrisk (man-pages)
[not found] ` <CAKgNAkj5nh7=yVAOps6mPva3A93qtkTDMrMBmYbXAN4AAi_+2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-04-30 22:11 ` Jonny Grant
[not found] ` <CAGc9EvcOSPb5f9kU3TeP-MU1FT-j=DRmnSNs4xZV_8fnAYdTTA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-06 12:28 ` Michael Kerrisk (man-pages)
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