Mercurial > vim
view vimtutor.bat @ 34776:19e038a1139a v9.1.0264
patch 9.1.0264: libgpm may delete some signal handlers
Commit: https://github.com/vim/vim/commit/cc59d62215b075c715294ad24a41bfd091cb8d48
Author: Julio B <julio.bacel@gmail.com>
Date: Thu Apr 4 21:55:10 2024 +0200
patch 9.1.0264: libgpm may delete some signal handlers
Problem: libgpm may delete some signal handlers
Solution: restore these signal handlers after calling gpm
(Julio B)
When 'mouse' is set, vim is trying to detect mouse support on startup.
Eventually, vim resorts to using libgpm as the final method of
mouse detection. This library may delete some signals handlers that were
initially set up by vim.
This is how:
- mch_setmouse() calls gpm_open()
- Gpm_Open is executed, which returns early on line 210 [1]
- Keep in mind that lines 353-373 [2] are skipped, so
gpm_saved_suspend_hook and gpm_saved_winch_hook are empty
- Finally, Gpm_Close is called, which will reset [3] SIGWINCH and
SIGTSTP to an empty sigaction.
[1] https://github.com/telmich/gpm/blob/e82d1a653ca94aa4ed12441424da6ce780b1e530/src/lib/liblow.c#L210
[2] https://github.com/telmich/gpm/blob/e82d1a653ca94aa4ed12441424da6ce780b1e530/src/lib/liblow.c#L353-L373
[3] https://github.com/telmich/gpm/blob/e82d1a653ca94aa4ed12441424da6ce780b1e530/src/lib/liblow.c#L419-L424
fixes: #12154
closes: #14401
Signed-off-by: Julio B <julio.bacel@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 04 Apr 2024 22:00:06 +0200 |
parents | 79aaaa134298 |
children |
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:: Start Vim on a copy of the tutor file. @echo off :: Usage: vimtutor [-console] [xx] :: :: -console means gvim will not be used :: xx is a language code like "es" or "nl". :: When an xx argument is given, it tries loading that tutor. :: When this fails or no xx argument was given, it tries using 'v:lang' :: When that also fails, it uses the English version. :: Use Vim to copy the tutor, it knows the value of $VIMRUNTIME FOR %%d in (. %TMP% %TEMP%) DO ( call :test_dir_writable "%~dpf0" %%d IF NOT ERRORLEVEL 1 GOTO dir_ok ) echo No working directory is found GOTO end :test_dir_writable SET TUTORCOPY=%2\$tutor$ COPY %1 %TUTORCOPY% >nul 2>nul GOTO end :dir_ok SET xx=%1 IF NOT .%1==.-console GOTO use_gui SHIFT SET xx=%1 GOTO use_vim :use_gui :: Try making a copy of tutor with gvim. If gvim cannot be found, try using :: vim instead. If vim cannot be found, alert user to check environment and :: installation. :: The script tutor.vim tells Vim which file to copy. start "dummy" /b /w "%~dp0gvim.exe" -u NONE -c "so $VIMRUNTIME/tutor/tutor.vim" IF ERRORLEVEL 1 GOTO use_vim :: Start gvim without any .vimrc, set 'nocompatible' start "dummy" /b /w "%~dp0gvim.exe" -u NONE -c "set nocp" %TUTORCOPY% GOTO end :use_vim :: The script tutor.vim tells Vim which file to copy call vim -u NONE -c "so $VIMRUNTIME/tutor/tutor.vim" IF ERRORLEVEL 1 GOTO no_executable :: Start vim without any .vimrc, set 'nocompatible' call vim -u NONE -c "set nocp" %TUTORCOPY% GOTO end :no_executable ECHO. ECHO. ECHO No vim or gvim found in current directory or PATH. ECHO Check your installation or re-run install.exe :end :: remove the copy of the tutor IF EXIST %TUTORCOPY% DEL %TUTORCOPY% SET xx=