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authorDave Reisner <dreisner@archlinux.org>2014-06-21 14:44:01 +0200
committerAllan McRae <allan@archlinux.org>2014-06-29 03:04:17 +0200
commit357b9a24a96478b7bcaaea8633f8f6a519f8903c (patch)
tree28cdc687d3a12ab389d36758e828d17c1c13dde5 /lib
parent07647d3d43d418f9efcf7c83a2079b9b673a7bfa (diff)
downloadpacman-357b9a24a96478b7bcaaea8633f8f6a519f8903c.tar.gz
pacman-357b9a24a96478b7bcaaea8633f8f6a519f8903c.tar.xz
cache terminal size, add SIGWINCH handler to reset
Refactoring getcols, yet again. We do the following: 1) Introduce a static global in src/pacman/util.c 2) getcols always prefers this cached value, but will derive it from the COLUMNS environment var, the characteristics of stdout, or a sane default (in that order). 3) Introduce a SIGWINCH signal handler to reset the cached value, meaning we only call ioctl when we don't know the value. On my machine, pacman -Syy goes from ~4300 ioctl calls to 3.
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