[Toybox] CTRL-T in freebsd shell...

enh enh at google.com
Mon Jun 10 09:47:02 PDT 2019


On Sun, May 19, 2019 at 12:36 PM Rob Landley <rob at landley.net> wrote:
> On 5/19/19 11:36 AM, Robert Thompson wrote:
> > When you need CTRL-\, you *really* need it...
> I haven't had CTRL-\ do anything ctrl-C doesn't this decade, but I'll take your
> word for it.
> I think this would need to be implemented in the kernel. The tcsetattr page says:
>        VSTATUS
>               (not in POSIX; not supported under Linux; status  request:  024,
>               DC4, Ctrl-T).  Status character (STATUS).  Display status infor‐
>               mation at terminal, including state of  foreground  process  and
>               amount of CPU time it has consumed.  Also sends a SIGINFO signal
>               (not supported on Linux) to the foreground process group.
> But the "not implemented" part is kind of a downer. Three's no SIGINFO in
> asm-generic/signal.h and they've used all 32 bits (for crazy things like SIGXFSZ
> which for some reason isn't the same as -ENOSPC?)
> *shrug* I got asked, thought I'd look into it...
> Rob
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