1forktest(6) Svgalib User Manual forktest(6)
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6 forktest - tests the vga_safety_fork() function.
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9 forktest
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13 This is a copy of the keytest(6) demo (look there). However, it uses
14 vga_safety_fork(3) to start a background process to restore the console
15 in case the fore ground process crashes. It removes all automatic
16 restore functions of svgalib. Thus, in case you kill this program with
17 kill(1) or <Ctrl>-C, only the background process will save your system
18 from being hosed up.
19 You can set a videomode to use by setting the environment variable
21 SVGALIB_DEFAULT_MODE to a number (see vgatest for a list) or a string
22 like G0x1x2 where you replace 0 with desired x resolution, 1 with the
23 desired y rez, and 2 with the desired number of colors (2, 16, 256,
24 32K, 64K, 16M, 16M4). Again, only certain choices are available, see
25 vgatest for a list.
26 In case nothing is selected, G320x200x256 is choosen.
28 This demo is part of svgalib and can be found in the demos/ subdirec‐
30 tory of the original svgalib distribution. However, it is not installed
31 in the system by default, s.t. it is unclear where you can find it if
32 your svgalib was installed by some linux distribution. Even then, when
33 you have the demo on your system, you probably won't have the sources
34 s.t. it is only of limited use for you.
35 In case of any such problem, simply get an svgalib distribution from
37 the net. You even don't need to install it. Just make in the demos/
38 subdirecty. As of this writing, svgalib-1.2.12.tar.gz is the latest
39 version and can be retrieved by ftp from sunsite.unc.edu at
40 /pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
41 which will most probably be mirrored by a site close to you.
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45 svgalib(7), vgagl(7), libvga.config(5), vga_safety_fork(3), threed(6),
46 accel(6), bg_test(6), eventtest(6), fun(6), keytest(6), mousetest(6),
47 scrolltest(6), speedtest(6), spin(6), testaccel(6), testgl(6), testlin‐
48 ear(6), vgatest(6), plane(6), wrapdemo(6)
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52 This manual page was edited by Michael Weller <eowmob@exp-math.uni-
53 essen.de>. The exact source of the referenced demo as well as of the
54 original documentation is unknown.
55 It is very likely that both are at least to some extent are due to Harm
57 Hanemaayer <H.Hanemaayer@inter.nl.net>.
58 Occasionally this might be wrong. I hereby asked to be excused by the
60 original author and will happily accept any additions or corrections to
61 this first version of the svgalib manual.
62Svgalib 1.3.0 8 April 1998 forktest(6)