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Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?
From: |
Andreas Schwab |
Subject: |
Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read? |
Date: |
Tue, 04 May 2021 15:03:10 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) |
On Mai 04 2021, Chet Ramey wrote:
> On 5/4/21 3:26 AM, Andreas Schwab wrote:
>> On Mai 03 2021, Chet Ramey wrote:
>>
>>> It won't work on any system that doesn't return -1/ESPIPE when you try
>>> to lseek on a terminal device. Glibc does;
>> Glibc doesn't do anything, it just uses what the kernel says.
>
> You'd think, but the manual says otherwise about ESPIPE:
>
> "The filedes corresponds to an object that cannot be positioned, such as a
> pipe, FIFO or terminal device. (POSIX.1 specifies this error only for pipes
> and FIFOs, but on GNU systems, you always get ESPIPE if the object is not
> seekable.)"
How does that contradict what I said?
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, (continued)
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Chet Ramey, 2021/05/04
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Koichi Murase, 2021/05/07
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Chet Ramey, 2021/05/07
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Koichi Murase, 2021/05/07
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Chet Ramey, 2021/05/09
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Koichi Murase, 2021/05/09
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Robert Elz, 2021/05/04
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Chet Ramey, 2021/05/04
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Andreas Schwab, 2021/05/04
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?, Chet Ramey, 2021/05/04
- Re: Why does "mapfile -d delim" (delim != '\n') use unbuffered read?,
Andreas Schwab <=