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diff --git a/docs/tutorials/012/combine.shar b/docs/tutorials/012/combine.shar deleted file mode 100644 index 05fb1da2f06..00000000000 --- a/docs/tutorials/012/combine.shar +++ /dev/null @@ -1,466 +0,0 @@ -#!/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/012'. -# -# Existing files will *not* be overwritten unless `-c' is specified. -# -# This shar contains: -# length mode name -# ------ ---------- ------------------------------------------ -# 430 -rw-rw-r-- hdr -# 56 -rw-rw-r-- bodies -# 1090 -rw-rw-r-- page01.pre -# 262 -rw-rw-r-- page02.pre -# 395 -rw-rw-r-- page03.pre -# 154 -rw-rw-r-- page04.pre -# 182 -rw-rw-r-- page05.pre -# 448 -rw-rw-r-- page06.pre -# 393 -rw-rw-r-- page02.pst -# 398 -rw-rw-r-- page03.pst -# 162 -rw-rw-r-- page04.pst -# 447 -rw-rw-r-- page05.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 _sh32620; 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="Author" CONTENT="James CE Johnson"> -X <TITLE>ACE Tutorial 012</TITLE> -</HEAD> -<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#000FFF" VLINK="#FF0F0F"> -X -<CENTER><B><FONT SIZE=+2>ACE Tutorial 012</FONT></B></CENTER> -X -<CENTER><B><FONT SIZE=+2>Passing classes through ACE_Message_Queue</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 \ - || $echo 'hdr:' 'MD5 check failed' -1acf94beccfa9e953b2f55e02a0bb2e6 hdr -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'hdr'`" - test 430 -eq "$shar_count" || - $echo 'hdr:' 'original size' '430,' 'current size' "$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=2 -work.h -block.h -message_queue.cpp -task.h task.cpp -SHAR_EOF - $shar_touch -am 0124160199 '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 \ - || $echo 'bodies:' 'MD5 check failed' -3ad29f0a25bfe156b37630c9ee9f715c bodies -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'bodies'`" - test 56 -eq "$shar_count" || - $echo 'bodies:' 'original size' '56,' 'current size' "$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' && -<P> -Last time around we put an object into a message queue by using the -copy() method to create a duplicate of the object. That's probably OK -for simple objects that aren't very large. However, if you have an -object that contains pointers or tons of data then that approach is -going to cause problems. -<P> -What we'll do in this tutorial is specialize the ACE_Message_Block -object so that it can carry our data more efficiently. As you'll see, -this isn't very difficult at all. -<P> -Kirthika's abstract: -<UL> -Here, a Message_Block class is derived from ACE_Message_Block and is -used to hold a pointer to the object of class Work. Also, the block has -a header containing text. This example simply illustrates a cleaner way -of utilizing Message_Blocks to store objects rather than copying their -contents. -<P> -The ACE_Barrier class has been used in the Task class which blocks the -threads until all of them are rearing to go and grab a block from the -queue and process it. -<P> -Thus a message queue can be used to accomplish a variety of tasks by -storing a object pointer in the blocks. -</UL> -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 \ - || $echo 'page01.pre:' 'MD5 check failed' -c9933ac2153b0a56043967ea9c7eb0c9 page01.pre -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page01.pre'`" - test 1090 -eq "$shar_count" || - $echo 'page01.pre:' 'original size' '1090,' 'current size' "$shar_count!" - fi -fi -# ============= page02.pre ============== -if test -f 'page02.pre' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page02.pre' '(file already exists)' -else - $echo 'x -' extracting 'page02.pre' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page02.pre' && -We normally start by looking at main() and work our way out from -there. This time, I want to start by showing you the ACE_Message_Block -derivative but before that, I have to introduce you to the Work object -and it's baseclass Unit_Of_Work -<P> -<HR WIDTH="100%"> -SHAR_EOF - $shar_touch -am 03191459100 'page02.pre' && - chmod 0664 'page02.pre' || - $echo 'restore of' 'page02.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 \ - || $echo 'page02.pre:' 'MD5 check failed' -91f6bbd4cdf687d420bd52bf6685e2d2 page02.pre -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page02.pre'`" - test 262 -eq "$shar_count" || - $echo 'page02.pre:' 'original size' '262,' 'current size' "$shar_count!" - fi -fi -# ============= page03.pre ============== -if test -f 'page03.pre' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page03.pre' '(file already exists)' -else - $echo 'x -' extracting 'page03.pre' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page03.pre' && -<P> -In the previous tutorial we moved our complex data into the queue by -copy()ing it directly into the message block's data area. I hope that -most readers got a queasy feeling when I did that. It just isn't a -good idea... -<P> -A better idea would be to teach the message queue about our data types -(or at least a baseclass) so that it can more efficiently handle things: -<P> -<HR WIDTH="100%"> -SHAR_EOF - $shar_touch -am 03191459100 'page03.pre' && - chmod 0664 'page03.pre' || - $echo 'restore of' 'page03.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 \ - || $echo 'page03.pre:' 'MD5 check failed' -134a60947715be2de3ca2589a3e652e2 page03.pre -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page03.pre'`" - test 395 -eq "$shar_count" || - $echo 'page03.pre:' 'original size' '395,' 'current size' "$shar_count!" - fi -fi -# ============= page04.pre ============== -if test -f 'page04.pre' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page04.pre' '(file already exists)' -else - $echo 'x -' extracting 'page04.pre' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page04.pre' && -<P> -Ok, finally we get to main(). Sorry for the diversion but it was -important to lay some of that groundwork before getting here. -<P> -<HR WIDTH="100%"> -SHAR_EOF - $shar_touch -am 03191459100 'page04.pre' && - chmod 0664 'page04.pre' || - $echo 'restore of' 'page04.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 \ - || $echo 'page04.pre:' 'MD5 check failed' -8989e75934f20e9b74d38a2d3687613a page04.pre -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page04.pre'`" - test 154 -eq "$shar_count" || - $echo 'page04.pre:' 'original size' '154,' 'current size' "$shar_count!" - fi -fi -# ============= page05.pre ============== -if test -f 'page05.pre' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page05.pre' '(file already exists)' -else - $echo 'x -' extracting 'page05.pre' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page05.pre' && -<P> -The Task is the only object we've not been through yet. I'll go ahead -and show both the header and cpp on this one page since the header -isn't very large. -<P> -<HR WIDTH="100%"> -SHAR_EOF - $shar_touch -am 03191459100 'page05.pre' && - chmod 0664 'page05.pre' || - $echo 'restore of' 'page05.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 \ - || $echo 'page05.pre:' 'MD5 check failed' -ed1b82e232cc376efa7b78f391c893bd page05.pre -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page05.pre'`" - test 182 -eq "$shar_count" || - $echo 'page05.pre:' 'original size' '182,' 'current size' "$shar_count!" - fi -fi -# ============= page06.pre ============== -if test -f 'page06.pre' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page06.pre' '(file already exists)' -else - $echo 'x -' extracting 'page06.pre' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page06.pre' && -<P> -Once again, we come to the end of a tutorial. By creating a simple -specialization of ACE_Message_Block, we've been able to remove a lot -of complexity and erorr potential from our previous implementation. -<UL> -<LI><A HREF="Makefile">Makefile</A> -<LI><A HREF="message_queue.cpp">message_queue.cpp</A> -<LI><A HREF="work.h">work.h</A> -<LI><A HREF="block.h">block.h</A> -<LI><A HREF="task.h">task.h</A> -<LI><A HREF="task.cpp">task.cpp</A> -</UL> -<P> -SHAR_EOF - $shar_touch -am 03191459100 'page06.pre' && - chmod 0664 'page06.pre' || - $echo 'restore of' 'page06.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 \ - || $echo 'page06.pre:' 'MD5 check failed' -64afabb236ea02927914d03f258e620b page06.pre -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page06.pre'`" - test 448 -eq "$shar_count" || - $echo 'page06.pre:' 'original size' '448,' 'current size' "$shar_count!" - fi -fi -# ============= page02.pst ============== -if test -f 'page02.pst' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page02.pst' '(file already exists)' -else - $echo 'x -' extracting 'page02.pst' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page02.pst' && -<HR WIDTH="100%"> -<P> -This is basically the same as the <i>DataBase</i> in the previous -tutorial but I've changed the name to be more generic. The feeling is -that a <i>Data</i> object would be a C struct but an <i>Work</i> -object would be a class with methods. -<P> -Now that you know what we'll be putting into the queue, lets go to the -next page where I specialize the ACE_Message_Block. -<P> -SHAR_EOF - $shar_touch -am 03191459100 'page02.pst' && - chmod 0664 'page02.pst' || - $echo 'restore of' 'page02.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 \ - || $echo 'page02.pst:' 'MD5 check failed' -ab34347fca8c20953552cf0ecebd394f page02.pst -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page02.pst'`" - test 393 -eq "$shar_count" || - $echo 'page02.pst:' 'original size' '393,' 'current size' "$shar_count!" - fi -fi -# ============= page03.pst ============== -if test -f 'page03.pst' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page03.pst' '(file already exists)' -else - $echo 'x -' extracting 'page03.pst' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page03.pst' && -<HR WIDTH="100%"> -<P> -Ok, this looks pretty good. We just construct our specialized -Message_Block instead of the generic ACE_Message_Block and let it -carry our data along. When our application is done with the message -block and release()es it, we know that our work object will also be -taken care of. -<P> -Let's now go to main() and see what we had to change there to use this -specialization. -<P> -SHAR_EOF - $shar_touch -am 03191459100 'page03.pst' && - chmod 0664 'page03.pst' || - $echo 'restore of' 'page03.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 \ - || $echo 'page03.pst:' 'MD5 check failed' -01e400b5683e0e1c3dfa25cc8120bfa6 page03.pst -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page03.pst'`" - test 398 -eq "$shar_count" || - $echo 'page03.pst:' 'original size' '398,' 'current size' "$shar_count!" - fi -fi -# ============= page04.pst ============== -if test -f 'page04.pst' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page04.pst' '(file already exists)' -else - $echo 'x -' extracting 'page04.pst' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page04.pst' && -<HR WIDTH="100%"> -<P> -That certainly looks cleaner than the previous approach! If you -blink, you'll miss the part where the Work object goes into the Queue. -<P> -SHAR_EOF - $shar_touch -am 03191459100 'page04.pst' && - chmod 0664 'page04.pst' || - $echo 'restore of' 'page04.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 \ - || $echo 'page04.pst:' 'MD5 check failed' -245db1d5e74203bf085369bb47d646db page04.pst -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page04.pst'`" - test 162 -eq "$shar_count" || - $echo 'page04.pst:' 'original size' '162,' 'current size' "$shar_count!" - fi -fi -# ============= page05.pst ============== -if test -f 'page05.pst' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'page05.pst' '(file already exists)' -else - $echo 'x -' extracting 'page05.pst' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'page05.pst' && -<HR WIDTH="100%"> -<P> -Like main() this is actually simpler than the previous tutorial. It's -much cleaner to carry around a pointer to the object we're working -with than to try copying data. -<P> -The only complication is the new ACE_Barrier. It's a pretty simple -object that makes it easy for you to synch threads in this way. You -could do some fancy tricks with mutexes, counters & semaphores but why -bother when the Barrier already exists. -<P> -SHAR_EOF - $shar_touch -am 03191459100 'page05.pst' && - chmod 0664 'page05.pst' || - $echo 'restore of' 'page05.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 \ - || $echo 'page05.pst:' 'MD5 check failed' -a7f519237d11a25b28af7aa33f5aaf30 page05.pst -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'page05.pst'`" - test 447 -eq "$shar_count" || - $echo 'page05.pst:' 'original size' '447,' 'current size' "$shar_count!" - fi -fi -rm -fr _sh32620 -exit 0 |