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#!/bin/sh
# This is a shell archive (produced by GNU sharutils 4.2).
# To extract the files from this archive, save it to some FILE, remove
# everything before the `!/bin/sh' line above, then type `sh FILE'.
#
# Made on 2000-03-19 15:00 EST by <jcej@chiroptera.tragus.org>.
# Source directory was `/home/jcej/projects/ACE_wrappers/docs/tutorials/004'.
#
# Existing files will *not* be overwritten unless `-c' is specified.
#
# This shar contains:
# length mode name
# ------ ---------- ------------------------------------------
# 591 -rw-rw-r-- hdr
# 18 -rw-rw-r-- bodies
# 701 -rw-rw-r-- page01.pre
# 959 -rw-rw-r-- page01.pst
#
save_IFS="${IFS}"
IFS="${IFS}:"
gettext_dir=FAILED
locale_dir=FAILED
first_param="$1"
for dir in $PATH
do
if test "$gettext_dir" = FAILED && test -f $dir/gettext \
&& ($dir/gettext --version >/dev/null 2>&1)
then
set `$dir/gettext --version 2>&1`
if test "$3" = GNU
then
gettext_dir=$dir
fi
fi
if test "$locale_dir" = FAILED && test -f $dir/shar \
&& ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
then
locale_dir=`$dir/shar --print-text-domain-dir`
fi
done
IFS="$save_IFS"
if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
then
echo=echo
else
TEXTDOMAINDIR=$locale_dir
export TEXTDOMAINDIR
TEXTDOMAIN=sharutils
export TEXTDOMAIN
echo="$gettext_dir/gettext -s"
fi
touch -am 1231235999 $$.touch >/dev/null 2>&1
if test ! -f 1231235999 && test -f $$.touch; then
shar_touch=touch
else
shar_touch=:
echo
$echo 'WARNING: not restoring timestamps. Consider getting and'
$echo "installing GNU \`touch', distributed in GNU File Utilities..."
echo
fi
rm -f 1231235999 $$.touch
#
if mkdir _sh32365; then
$echo 'x -' 'creating lock directory'
else
$echo 'failed to create lock directory'
exit 1
fi
# ============= hdr ==============
if test -f 'hdr' && test "$first_param" != -c; then
$echo 'x -' SKIPPING 'hdr' '(file already exists)'
else
$echo 'x -' extracting 'hdr' '(text)'
sed 's/^X//' << 'SHAR_EOF' > 'hdr' &&
<HTML>
<HEAD>
X <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
X <META NAME="GENERATOR" CONTENT="Mozilla/4.04 [en] (X11; I; Linux 2.0.32 i486) [Netscape]">
X <META NAME="Author" CONTENT="James CE Johnson">
X <META NAME="Description" CONTENT="A first step towards using ACE productively">
X <TITLE>ACE Tutorial 004</TITLE>
</HEAD>
<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#000FFF" VLINK="#FF0F0F">
X
<CENTER><B><FONT SIZE=+2>ACE Tutorial 004</FONT></B></CENTER>
X
<CENTER><B><FONT SIZE=+2>A much more clever Client</FONT></B></CENTER>
X
X
<P>
<HR WIDTH="100%">
SHAR_EOF
$shar_touch -am 03191459100 'hdr' &&
chmod 0664 'hdr' ||
$echo 'restore of' 'hdr' 'failed'
if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
&& ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
md5sum -c << SHAR_EOF >/dev/null 2>&1 \
|| $echo 'hdr:' 'MD5 check failed'
f129543602285ef632d3ae560999a4db hdr
SHAR_EOF
else
shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'hdr'`"
test 591 -eq "$shar_count" ||
$echo 'hdr:' 'original size' '591,' 'current size' "$shar_count!"
fi
fi
# ============= bodies ==============
if test -f 'bodies' && test "$first_param" != -c; then
$echo 'x -' SKIPPING 'bodies' '(file already exists)'
else
$echo 'x -' extracting 'bodies' '(text)'
sed 's/^X//' << 'SHAR_EOF' > 'bodies' &&
PAGE=1
client.cpp
SHAR_EOF
$shar_touch -am 0117142999 'bodies' &&
chmod 0664 'bodies' ||
$echo 'restore of' 'bodies' 'failed'
if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
&& ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
md5sum -c << SHAR_EOF >/dev/null 2>&1 \
|| $echo 'bodies:' 'MD5 check failed'
d02fcd98e57e40350f82497be4ac0e0c bodies
SHAR_EOF
else
shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'bodies'`"
test 18 -eq "$shar_count" ||
$echo 'bodies:' 'original size' '18,' 'current size' "$shar_count!"
fi
fi
# ============= page01.pre ==============
if test -f 'page01.pre' && test "$first_param" != -c; then
$echo 'x -' SKIPPING 'page01.pre' '(file already exists)'
else
$echo 'x -' extracting 'page01.pre' '(text)'
sed 's/^X//' << 'SHAR_EOF' > 'page01.pre' &&
X
<P>Ok, so the last time around, we learned how to create a simple client
that can send a chunk of data. A cooler thing to do is to overload
the C++ put operator (<<) to put some data for us. That's what
we're going to do this time. (This tutorial is actually where ACE_IOStream
was born.)
<P>
Kirthika says:
<UL>
The cool thing about this "cooler" client is how we use a C++ trick for
streaming incoming data by using the operator<<() method. Also the
Connector portion is wrapped in the open() method which now takes in the
server hostname and port. The result is a cleaner looking client which
successfully interacts with the server when connection is established.
</UL>
<HR WIDTH="100%">
SHAR_EOF
$shar_touch -am 03191459100 'page01.pre' &&
chmod 0664 'page01.pre' ||
$echo 'restore of' 'page01.pre' 'failed'
if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
&& ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
md5sum -c << SHAR_EOF >/dev/null 2>&1 \
|| $echo 'page01.pre:' 'MD5 check failed'
c0f522e5dbdca1211121476939bb2eaf page01.pre
SHAR_EOF
else
shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page01.pre'`"
test 701 -eq "$shar_count" ||
$echo 'page01.pre:' 'original size' '701,' 'current size' "$shar_count!"
fi
fi
# ============= page01.pst ==============
if test -f 'page01.pst' && test "$first_param" != -c; then
$echo 'x -' SKIPPING 'page01.pst' '(file already exists)'
else
$echo 'x -' extracting 'page01.pst' '(text)'
sed 's/^X//' << 'SHAR_EOF' > 'page01.pst' &&
<HR WIDTH="100%">
X
<P>Ok, now we're done with that. As you can see, it really isn't
so hard to create an object that makes sending data much more "natural"
than the typical send() or send_n() invocation. You can even build
up arbitrary objects and do some neat tricks with C++ templates to stream
their data out as well. (We may go into that a little later.)
Of course, writting the full implementation such that these streams are
interchangable with the standard C++ ostreams is quite a bit more difficult.
In addition, there are a lot of optimizations that this client would benefit
from!
X
<P>As an exercise to the reader (don't you hate those!) I challenge you
to write the server side of this. You can take a look at IOStream_Test
in the ACE distribution if you get stuck...
X
<P>If you want to compile it yourself, here's the <A HREF="client.cpp">source</A>,
the <A HREF="Makefile">Makefile</A>,
and <A HREF="00SetEnv">Environment
settings</A>.
X
<P>
SHAR_EOF
$shar_touch -am 03191459100 'page01.pst' &&
chmod 0664 'page01.pst' ||
$echo 'restore of' 'page01.pst' 'failed'
if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
&& ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
md5sum -c << SHAR_EOF >/dev/null 2>&1 \
|| $echo 'page01.pst:' 'MD5 check failed'
82999856145d3dfa74ebbda7e98eb4b2 page01.pst
SHAR_EOF
else
shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page01.pst'`"
test 959 -eq "$shar_count" ||
$echo 'page01.pst:' 'original size' '959,' 'current size' "$shar_count!"
fi
fi
rm -fr _sh32365
exit 0
|
