Source Code 1994 March/Source_Code_CD-ROM_Walnut_Creek_March_1994.iso/compsrcs/x/volume17/xsleep/part01

Text File | 1992-04-07 | 6.6 KB | 236 lines

Newsgroups: comp.sources.x
Path: uunet!haven.umd.edu!darwin.sura.net!mips!msi!dcmartin
From: [e-mail] (Jef Poskanzer)
Subject: v17i052: xsleep - trivial X program that sleeps and exits, Part01/01
Message-ID: <[e-mail]>
Originator: dcmartin@fascet
Sender: [e-mail] (David C. Martin - Moderator)
Nntp-Posting-Host: fascet
Organization: Molecular Simulations, Inc.
Date: Wed, 8 Apr 1992 16:33:26 GMT
Approved: [e-mail]

Submitted-by: [e-mail] (Jef Poskanzer)
Posting-number: Volume 17, Issue 52
Archive-name: xsleep/part01

There may be some other way to do this, but....

Xsleep opens up an X connection, sleeps for the specified number of
seconds, and then closes the connection and exits.

Why do something so silly?  Well I'll tell you.  It's because many X
servers reset themselves when they have no connections.  This is a
pain when you're starting up a session, because you do an xset, an
xrdb, an xmodmap, etc., and between each one the server resets itself.
So to prevent this, do an xsleep first, then your initializations,
then start up your real clients.
---
Jef

           Jef Poskanzer  [e-mail]  [e-mail]
                            INSPECTED BY #6

#! /bin/sh
# This is a shell archive, meaning:
# 1. Remove everything above the #! /bin/sh line.
# 2. Save the resulting text in a file.
# 3. Execute the file with /bin/sh (not csh) to create the files:
#    README
#    Imakefile
#    xsleep.c
#    xsleep.man
# This archive created: Thu Apr  2 20:59:55 1992
# By:    Jef Poskanzer
export PATH; PATH=/bin:$PATH
echo shar: extracting "'README'" '(916 characters)'
if test -f 'README'
then
    echo shar: will not over-write existing file "'README'"
else
sed 's/^X//' << \SHAR_EOF > 'README'
X           xsleep - trivial X program that sleeps and exits
X                         Release of 02apr92
X                        Previous release NONE
X
XXsleep opens up an X connection, sleeps for the specified number of
Xseconds, and then closes the connection and exits.
X
XWhy do something so silly?  Well I'll tell you.  It's because many X
Xservers reset themselves when they have no connections.  This is a
Xpain when you're starting up a session, because you do an xset, an
Xxrdb, an xmodmap, etc., and between each one the server resets itself.
XSo to prevent this, do an xsleep first, then your initializations,
Xthen start up your real clients.
X
XFiles in this distribution:
X    README        this
X    Makefile        guess
X    xsleep.c        source sode
X    xsleep.man        man page
X
XTo install:
X    Unpack the files.
X    xmkmf
X    make depend
X    make
X    make install
X
XComments to:
X    Jef Poskanzer  [e-mail]  [e-mail]
SHAR_EOF
if test 916 -ne "`wc -c < 'README'`"
then
    echo shar: error transmitting "'README'" '(should have been 916 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'Imakefile'" '(84 characters)'
if test -f 'Imakefile'
then
    echo shar: will not over-write existing file "'Imakefile'"
else
sed 's/^X//' << \SHAR_EOF > 'Imakefile'
X        DEPLIBS = $(DEPXLIB)
XLOCAL_LIBRARIES = $(XLIB)
X
XSimpleProgramTarget(xsleep)
SHAR_EOF
if test 84 -ne "`wc -c < 'Imakefile'`"
then
    echo shar: error transmitting "'Imakefile'" '(should have been 84 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'xsleep.c'" '(1389 characters)'
if test -f 'xsleep.c'
then
    echo shar: will not over-write existing file "'xsleep.c'"
else
sed 's/^X//' << \SHAR_EOF > 'xsleep.c'
X#include <stdio.h>
X
X#include <X11/Xlib.h>
X
Xvoid
Xmain( argc, argv )
X    int argc;
X    char* argv[];
X    {
X    int argn, seconds;
X    char *display_name;
X    Display *display;
X    char* usage = "usage:  %s [-display display] seconds\n";
X
X    argn = 1;
X    display_name = (char*) 0;
X
X    while ( argn < argc && argv[argn][0] == '-' )
X    {
X    if ( strcmp( argv[argn], "-display" ) == 0 ||
X         strcmp( argv[argn], "-displa" ) == 0 ||
X         strcmp( argv[argn], "-displ" ) == 0 ||
X         strcmp( argv[argn], "-disp" ) == 0 ||
X         strcmp( argv[argn], "-dis" ) == 0 ||
X         strcmp( argv[argn], "-di" ) == 0 ||
X         strcmp( argv[argn], "-d" ) == 0 )
X        {
X        ++argn;
X        if ( argn >= argc )
X        {
X        (void) fprintf( stderr, usage, argv[0] );
X        exit( 1 );
X        }
X        display_name = argv[argn];
X        }
X    }
X
X    if ( argn >= argc )
X    {
X    (void) fprintf( stderr, usage, argv[0] );
X    exit( 1 );
X    }
X    seconds = atoi( argv[argn] );
X    if ( seconds <= 0 )
X    {
X    (void) fprintf( stderr, usage, argv[0] );
X    exit( 1 );
X    }
X    ++argn;
X
X    if ( argn != argc )
X    {
X    (void) fprintf( stderr, usage, argv[0] );
X    exit( 1 );
X    }
X
X    display = XOpenDisplay( display_name );
X    if ( display == (Display*) 0 )
X    {
X        fprintf(
X        stderr, "%s: can't open display \"%s\"\n",
X        argv[0], XDisplayName( display_name ) );
X        exit(1);
X    }
X
X    sleep( seconds );
X
X    XCloseDisplay( display );
X    exit( 0 );
X    }
SHAR_EOF
if test 1389 -ne "`wc -c < 'xsleep.c'`"
then
    echo shar: error transmitting "'xsleep.c'" '(should have been 1389 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'xsleep.man'" '(1109 characters)'
if test -f 'xsleep.man'
then
    echo shar: will not over-write existing file "'xsleep.man'"
else
sed 's/^X//' << \SHAR_EOF > 'xsleep.man'
X.TH xsleep 1 "2 April 1992"
X.SH NAME
Xxsleep - trivial X program that sleeps and exits
X.SH SYNOPSIS
X.B xsleep
X.RB [ -display
X.IR display ]
X.I seconds
X.SH DESCRIPTION
X.PP
X.I Xsleep
Xopens up an X connection, sleeps for the specified number of seconds,
Xand then closes the connection and exits.
X.PP
XWhy do something so silly?
XWell I'll tell you.
XIt's because many X servers reset themselves when they have no
Xconnections.
XThis is a pain when you're starting up a session, because
Xyou do an xset, an xrdb, an xmodmap, etc., and between each
Xone the server resets itself.
XSo to prevent this, do an
X.I xsleep
Xfirst, then your initializations, then start up your real clients.
X.SH AUTHOR
XCopyright (C) 1992 by Jef Poskanzer.
X.\" Permission to use, copy, modify, and distribute this software and its
X.\" documentation for any purpose and without fee is hereby granted, provided
X.\" that the above copyright notice appear in all copies and that both that
X.\" copyright notice and this permission notice appear in supporting
X.\" documentation.  This software is provided "as is" without express or
X.\" implied warranty.
SHAR_EOF
if test 1109 -ne "`wc -c < 'xsleep.man'`"
then
    echo shar: error transmitting "'xsleep.man'" '(should have been 1109 characters)'
fi
fi # end of overwriting check
#    End of shell archive
exit 0
--
--
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