command-line/CGI Revolution engine questions

[Pierre Sahores]

Le lun 01/09/2003 à 19:56, Alex Rice a écrit :
> I just downloaded the 2.0 revolution engine for Darwin (OS X) from 
> ftp.runrev.com.
> 
> 1) It requires installation of nonstandard shared libraries X11 and 
> libdl. The darwin engine "mc" available from metacard.com does not have 
> this problem. Why the difference? I already had X11 installed and 
> compiling libdl right now. I am just surprised I have to compile 
> something to get the revolution engine to work.
> 
> 2) I tried the following as an experiment.
> 
>   sudo cp revolution /usr/local/bin/mc
>   create mainstack in Rev IDE, save as filename "fu.rev"
>   write a handler in the stack
> 
> on startup
>    put "hello world"
>    put linefeed
> end startup
> 
> # chmod +x fu.rev
> # ./fu.rev
> 
> external startup
> mc: Can't open display
> mc: Can't load stack or script ./fu.rev

To run in the cgi way (console mode - no X display needed at all),
"fu.rev" don't have to be saved as a stack but as a .txt file. To get it
available as a regular cgi script, a ".rev" (or the other extension of
your choice) addhandler entry need to be added to the "httpd.conf"
Apache config file, like below :

> # To use CGI scripts:
>     #
>     #AddHandler cgi-script .cgi
>     AddHandler cgi-script .rev

> Anyone know why the shell script front end that appears in each MC 
> stack does not work on OS X? Does it work on Linux? Maybe I am not 
> understanding the intent of this mini shell script that appears at the 
> beginning of every Rev stack.  Here it is.

This don't have to do with the way we can start the stack under Linux,
as cgi or, even, as long console-mode process at boot time, like below :

> #!/bin/sh
> # Start/stop WMCASERVER
> 
> case "$1" in
> 'start')
>         killall -1 aserverstart
> /usr/local/httpd/celia/aserver/aserverstart &
> ;;
> 'stop')
> killall -1 aserverstart
> ;;
> *)
> echo "Usage: $0 { start | stop }"
> ;;
> esac
> exit 0

where the upon code is stored in a txt file and "aserverstart"
is a second txt file containing the code below :

> #!/home/oscar/mc
> on startup
> open stack "/usr/local/httpd/celia/iassd/aserver.mc"
> end startup

where asserver.mc (work the same way with .rev stacks) is a standard GUI builded stack witch contains the minimal server app code, like below :

> on newconnect s # reading  the request from a new socket
>   read from socket s for 1 line with message "serverread" -- socket opened by a cgi, perl or php sockets listener
> end newconnect
> 
> on serverread x,y # processing the request
>   global PostIn,Retour,Lepath
>   put urldecode(y) into PostIn # données POST reçues de wmc.xml
>   put cr into char (length(PostIn))-1 to (length(PostIn)) of PostIn
>   put "" into Retour
>   set itemdelimiter to "&"
>   WASSwitch -- YOUR CUSTOM STATEMENTS GOES THERE
>   write Retour to socket x
>   close socket x # x = adresse IP & "|" & n° d'ordre du socket fils reçu de wmc.xml
>   try
>     put the hostAddressToName of char 5 to -1 of item 3 of PostIn into ppa
>   catch errornum
>     put char 5 to -1 of item 3 of PostIn into ppa
>   end try
>   open file Lepath & "logaserver.txt" for append
>   write the date && the long time && item 1 of PostIn && char 5 to -1 of item -2 of PostIn && line 1 of opensockets() && \
>       ppa && "200 OK" & cr to file Lepath & "logaserver.txt"
>   repeat
>     if the num of lines in (opensockets()) > 1
>     then close socket line 2 of (opensockets())
>     else exit repeat
>   end repeat
> end serverread

> #!/bin/sh
> # MetaCard 2.4 stack
> # The following is not ASCII text,
> # so now would be a good time to q out of more^L
> exec mc $0 "$@"

The five line upon are reserved to the private use of the stacks by the
engine.
> 
> This, however, does work ok:
> 
> #!/usr/local/bin/mc
> on startup
>    put "hello world"
>    put linefeed
> end startup
> 
> Now I understand why the previous poster (I'm bad with names) was doing 
> like this
> 
> #!/usr/local/bin/mc
> start using stack "some.rev"
> 
> 3) The 2.1 command-line/CGI engines are not available?
> 
> 4) Is there an Emacs mode for metacard and/or xtalk languages 
> languages? My version of emacs thinks a .mc script is for M4 macro mode 
> :-/
> 
> Alex Rice <alex at mindlube.com> | Mindlube Software | http://mindlube.com
> 
> what a waste of thumbs that are opposable
> to make machines that are disposable  -Ani DiFranco
> 
> _______________________________________________
> use-revolution mailing list
> use-revolution at lists.runrev.com
> http://lists.runrev.com/mailman/listinfo/use-revolution

Hope this help,
-- 
Bien cordialement, Pierre Sahores

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