Re: [Bug-readline] [PATCH] readline/histfile.c: Check and retry write() operation in history_truncate_file()

Chen Gang
2014-06-23T14:59:40Z

On 06/23/2014 09:57 PM, Chet Ramey wrote:
> On 6/21/14, 10:01 PM, Chen Gang wrote:
>
>>> history_truncate_file will never return -1.
>>>
>>
>> Hmm... do you mean:
>>
>> "for regular file, write() never return 0, if parameter 'count' > 0?"
>>

I am not quite sure whether it is true, in my experience, it should be
true, but I have no any proofs for it (if you have, welcome to supply).

thank.

>> or
>>
>> "if write() return 0, can also return 0 to history_truncate_file()?".
>

For me, if write() could return 0, when it happened, we had to process the
case within history_truncate_file(), could not only return 0 to indicate
all things go on well.

> Both of those things are true, but neither is what I said above.
>

If both of those things are not true, what your originally said above
are not true, either.

Thanks.
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