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bug#33050: 27.0.50; [macOS] Problem with process input with process-conn
From: |
Filipp Gunbin |
Subject: |
bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil |
Date: |
Thu, 25 Oct 2018 18:51:17 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (darwin) |
On 24/10/2018 18:07 -0400, Thomas Fitzsimmons wrote:
> Hi Filipp,
>
[...]
> However, ttname's value on my system does correspond to the
> process-connection-type setting.
Yes, so in your case child process doesn't have controlling terminal,
while in my case it does.
process.c Line 2069:
#ifdef DARWIN_OS
/* Darwin doesn't let us run setsid after a vfork, so use fork when
necessary. Also, reset SIGCHLD handling after a vfork, as
apparently macOS can mistakenly deliver SIGCHLD to the child. */
if (pty_flag)
pid = fork ();
else
{
pid = vfork ();
if (pid == 0)
signal (SIGCHLD, SIG_DFL);
}
#else
pid = vfork ();
#endif
With process-connection-type nil, we call vfork() and then setsid()
apparently fails (at least to reset child's controlling terminal).
I tried to change the above to just use fork(), and got the correct
behavior.
If only I knew how to fix this correctly, without reverting to fork()
:-) Does anyone have ideas? I'll try to look into this further myself,
and will write back.
Filipp
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, (continued)
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/22
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Thomas Fitzsimmons, 2018/10/22
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/23
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Thomas Fitzsimmons, 2018/10/23
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/24
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/24
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Thomas Fitzsimmons, 2018/10/24
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/24
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/24
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Thomas Fitzsimmons, 2018/10/24
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil,
Filipp Gunbin <=
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Eli Zaretskii, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Eli Zaretskii, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Eli Zaretskii, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Eli Zaretskii, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Filipp Gunbin, 2018/10/25
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Eli Zaretskii, 2018/10/26
- bug#33050: 27.0.50; [macOS] Problem with process input with process-connection-type nil, Thomas Fitzsimmons, 2018/10/25