Manual Reference Pages - XTOOLWAIT (1)
xtoolwait - start X client and wait for it to map a window
xtoolwait [ -display display-name ] [ -timeout nseconds ]
[ -mappings nwindows ] [ -pid ] [ -help ] [ -version ] command
Xtoolwait notably decreases the startup time of an X session by reducing
the load on the X server and the OS.
Xtoolwait starts the X client command in the background. It then
waits until a window is mapped on the root window and exits.
Xtoolwait also exits if a time-out occurs (by default after
15 seconds), or if command exits.
Monitor the X display display-name for window mapping events.
If this option is not used, the X display defaults to the value of
the DISPLAY environment variable.
See also section NOTES below.
Use a time-out period of nseconds seconds. If this option is not
used, the time-out period defaults to 15 seconds.
Exit after nwindows windows have been mapped, instead of the default of
one window. Use this option only if you are absolutely sure that command
will map nwindows top-level windows, in which case it will slightly
increase the performance.
Print the process id (pid) of command to standard output. This option
is useful for shell scripts that want to wait for (or send a signal to)
command. To support shell command substitution (command),
Xtoolwait redirects the standard output of command to standard
Print out the Usage: command syntax summary.
Print out the version number.
This is the relevant part of my own .xinitrc file, showing the
proper use of Xtoolwait:
Note that the window manager must be started first. Xtoolwait depends
on it to detect window mappings. The first instance of Xtoolwait will
wait until both the window manager and the X client have finished
# Startup the window manager first
olvwm & wmpid=$!
# Restore desktop settings
# Do _not_ put xtoolwait in the background
xtoolwait -mappings 2 contool -Wp 30 30 -Ws 575 246 -WP 3 533 -Wi
xtoolwait xeyes -geom 77x60+640+107
xtoolwait ansi_xterm -geom 80x24+22+11
xtoolwait clock -Wp 90 90 -Ws 150 150 -WP 733 110 -Wi
# Wait for the window manager
Note also that the first Xtoolwait uses the -mappings option to
detect the virtual desktop window, which is mapped by virtual window
managers. Omit this option if you use a non-virtual window manager.
Xtoolwait returns 0 if it detected the mapping of a window on the root
window, and 1 otherwise. The one exception to this rule is when command
exits normally before mapping a window, in which case its return value is
The default display name to monitor
Xtoolwait does not propagate the -display option to command.
If you use this option, you should feed it both to Xtoolwait and to
command. This is intentional, so dont report this as a bug.
Xtoolwait was written by Richard Huveneers <email@example.com>.
Check out http://www.hacom.nl/~richard for more information about the author.
Copyright (C) 1995-1999 Richard Huveneers <firstname.lastname@example.org>.
Xtoolwait is released under the GNU General Public License.
The full copyright notice is stated at the start of the source code.
Xtoolwait tries to ignore windows that are mapped by other X clients.
The method used will fail if two or more X clients are started almost
This situation does not arise as long as all X clients are started by
Xtoolwait during the X session startup.
|--> ||XTOOLWAIT (1) ||31 July 99 |
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