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Fast (3)
  • >> Fast (3) ( Solaris man: Библиотечные вызовы )
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    NAME

         CGI::Fast - CGI Interface for Fast CGI
    
    
    

    SYNOPSIS

             use CGI::Fast qw(:standard);
             $COUNTER = 0;
             while (new CGI::Fast) {
                 print header;
                 print start_html("Fast CGI Rocks");
                 print
                     h1("Fast CGI Rocks"),
                     "Invocation number ",b($COUNTER++),
                     " PID ",b($$),".",
                     hr;
                 print end_html;
             }
    
    
    
    

    DESCRIPTION

         CGI::Fast is a subclass of the CGI object created by CGI.pm.
         It is specialized to work well with the Open Market FastCGI
         standard, which greatly speeds up CGI scripts by turning
         them into persistently running server processes.  Scripts
         that perform time-consuming initialization processes, such
         as loading large modules or opening persistent database
         connections, will see large performance improvements.
    
    
    

    OTHER PIECES OF THE PUZZLE

         In order to use CGI::Fast you'll need a FastCGI-enabled Web
         server.  Open Market's server is FastCGI-savvy.  There are
         also freely redistributable FastCGI modules for NCSA httpd
         1.5 and Apache.  FastCGI-enabling modules for Microsoft
         Internet Information Server and Netscape Communications
         Server have been announced.
    
         In addition, you'll need a version of the Perl interpreter
         that has been linked with the FastCGI I/O library.
         Precompiled binaries are available for several platforms,
         including DEC Alpha, HP-UX and SPARC/Solaris, or you can
         rebuild Perl from source with patches provided in the
         FastCGI developer's kit.  The FastCGI Perl interpreter can
         be used in place of your normal Perl without ill
         consequences.
    
         You can find FastCGI modules for Apache and NCSA httpd,
         precompiled Perl interpreters, and the FastCGI developer's
         kit all at URL:
    
           http://www.fastcgi.com/
    
    
    
    

    WRITING FASTCGI PERL SCRIPTS

         FastCGI scripts are persistent: one or more copies of the
         script are started up when the server initializes, and stay
         around until the server exits or they die a natural death.
         After performing whatever one-time initialization it needs,
         the script enters a loop waiting for incoming connections,
         processing the request, and waiting some more.
    
         A typical FastCGI script will look like this:
    
             #!/usr/local/bin/perl    # must be a FastCGI version of perl!
             use CGI::Fast;
             &do_some_initialization();
             while ($q = new CGI::Fast) {
                 &process_request($q);
             }
    
         Each time there's a new request, CGI::Fast returns a CGI
         object to your loop.  The rest of the time your script waits
         in the call to new().  When the server requests that your
         script be terminated, new() will return undef.  You can of
         course exit earlier if you choose.  A new version of the
         script will be respawned to take its place (this may be
         necessary in order to avoid Perl memory leaks in long-
         running scripts).
    
         CGI.pm's default CGI object mode also works.  Just modify
         the loop this way:
    
             while (new CGI::Fast) {
                 &process_request;
             }
    
         Calls to header(), start_form(), etc. will all operate on
         the current request.
    
    
    

    INSTALLING FASTCGI SCRIPTS

         See the FastCGI developer's kit documentation for full
         details.  On the Apache server, the following line must be
         added to srm.conf:
    
             AddType application/x-httpd-fcgi .fcgi
    
         FastCGI scripts must end in the extension .fcgi.  For each
         script you install, you must add something like the
         following to srm.conf:
    
            AppClass /usr/etc/httpd/fcgi-bin/file_upload.fcgi -processes 2
    
         This instructs Apache to launch two copies of
         file_upload.fcgi at startup time.
    
    
    

    USING FASTCGI SCRIPTS AS CGI SCRIPTS

         Any script that works correctly as a FastCGI script will
         also work correctly when installed as a vanilla CGI script.
         However it will not see any performance benefit.
    
    
    

    CAVEATS

         I haven't tested this very much.
    
    
    

    AUTHOR INFORMATION

         Copyright 1996-1998, Lincoln D. Stein.  All rights reserved.
    
         This library is free software; you can redistribute it
         and/or modify it under the same terms as Perl itself.
    
         Address bug reports and comments to: [email protected]
    
    
    

    BUGS

         This section intentionally left blank.
    
    
    

    SEE ALSO

         the CGI::Carp manpage, the CGI manpage
    
         =cut
    
    
    
    


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