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In the changes around commit 420fe75552, I made the terminal
suspend output processing while it waited for a term_size() callback
in response to a resize request. Because on X11 there are unusual
circumstances in which you never receive that callback, I also added a
last-ditch 5-second timeout, so that eventually we'll resume terminal
output processing regardless.
But the timeout lives in terminal.c, in the cross-platform code. This
is pointless on Windows (where resize processing is synchronous, so we
always finish it before the timer code next gets called anyway), but I
decided it was easier to keep the whole mechanism in terminal.c in the
absence of a good reason not to.
Now I've found that reason. We _also_ generate window resizes locally
to the GTK front end, in response to the key combinations that change
the font size, and _those_ still have an asynchrony problem.
So, to begin with, I'm refactoring the request_resize system so that
now there's an explicit callback from the frontend to the terminal to
say 'Your resize request has now been processed, whether or not you've
received a term_size() call'. On Windows, this simplifies matters
greatly because we always know exactly when to call that, and don't
have to keep a 'have we called term_size() already?' flag. On GTK, the
timing complexity previously in terminal.c has moved into window.c.
No functional change (I hope). The payoff will be in the next commit.
This is the README for PuTTY, a free Windows and Unix Telnet and SSH
client.
PuTTY is built using CMake <https://cmake.org/>. To compile in the
simplest way (on any of Linux, Windows or Mac), run these commands in
the source directory:
cmake .
cmake --build .
Documentation (in various formats including Windows Help and Unix
`man' pages) is built from the Halibut (`.but') files in the `doc'
subdirectory using `doc/Makefile'. If you aren't using one of our
source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
The PuTTY home web site is
https://www.chiark.greenend.org.uk/~sgtatham/putty/
If you want to send bug reports or feature requests, please read the
Feedback section of the web site before doing so. Sending one-line
reports saying `it doesn't work' will waste your time as much as
ours.
See the file LICENCE for the licence conditions.