calling halfdelay() unmasks ISIG -- is that intentional?

[Benno Schulenberg]

Hi Thomas,

In nano, halfdelay() is used in order to time the dropping of a
highlight or the wiping of a feedback message.  But after calling
halfdelay(), the ISIG flag needs to be masked anew for a possible
^C to be registered as a keystroke.

https://git.savannah.gnu.org/cgit/nano.git/tree/src/winio.c?id=f4754bfb5a1f82158aa9119bdaa2cdb8b3bbf627#n214

In the man page for halfdelay() and friends it says that
half-delay mode is similar to cbreak mode, and for cbreak
it says that "interrupt and flow control characters are
unaffected".  So I would have expected halfdelay() to do
nothing with ISIG.  Am I reading this wrong?


Benno

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