Hi Takashi, On Feb 16 17:13, Takashi Yano wrote: > - If two cygwin programs are executed simultaneousley with pipes > in cmd.exe, xterm compatible mode is accidentally disabled by > the process which ends first. After that, escape sequences are > not handled correctly in the other app. This is the problem 2 > reported in https://cygwin.com/ml/cygwin/2020-02/msg00116.html. > This patch fixes the issue. This patch also fixes the problem 3. > For these issues, the timing of setting and unsetting xterm > compatible mode is changed. For read, xterm compatible mode is > enabled only within read() or select() functions. For write, it > is enabled every time write() is called, and restored on close().
Oh well, I was just going to release 3.1.3 :}
In terms of this patch, rather than to change the mode on every
invocation of read/write/select/close, wouldn't it make more sense to
count the number of mode switches in a shared per-console variable, i.e.
LONG shared_console_info::xterms_mode = 0;
on open:
if (InterlockedIncrement (&xterm_mode) == 1)
switch to xterm mode;
on close:
if (InterlockedDecrement (&xterm_mode)) == 0)
switch back to compat mode;
?
Thanks,
Corinna
--
Corinna Vinschen
Cygwin Maintainer
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