'''FastCGI''' ([https://web.archive.org/web/20070716232258/http://fastcgi.com:80%|%website archive]) is a language-independent protocol based on [CGI]. It improves performance (at the cost of isolation) by not creating a new process for every request. It competes with [SCGI], which is more popular in Tcl-land.


** Tcl packages **

*** FastCGI for Tcl (C extension) ***

&| What         | '''FastCGI for Tcl''' |&
&| Where        | https://sourceforge.net/p/tcl-fastcgi/ <<br>> `cvs -z3 -d:pserver:anonymous@a.cvs.sourceforge.net:/cvsroot/tcl-fastcgi co -P tcl-fastcgi` |&
&| Description  | A C [extension] for the Tcl interpreter that implement the FastCGI protocol. Works under Windows as well as *nix. |&
&| Requirements | Tcl 8.3 |&
&| Updated      | 2013-04-17 |&
&| Authors      | [Tom Poindexter], Christoph Bauer |&

*** Fcgi.tcl (pure Tcl) ***

&| What         | '''Fcgi.tcl''' |&
&| Where        | https://github.com/mpcjanssen/tcl-fcgi |&
&| Description  | A fork of the pure Tcl implementation of FastCGI that used to be part of Tom Poindexter's project. |&
&| Requirements | Tcl 8.0 (the library itself), Tcl 8.5 (examples) |&
&| Updated      | 2021-04 |&
&| Authors      | [Tom Poindexter]; modifications by [dbohdan] |&

*** tclfcgi (C extension) ***

&| What         | '''tclfcgi''' |&
&| Where        | https://github.com/jdc8/tclfcgi |&
&| Description  | A Tcl wrapper for the FastCGI C library. |&
&| Requirements | Tcl 8.6, [Critcl] 3 |&
&| Updated      | 2013-02-04 |&
&| Authors      | [Jos Decoster] |&

*** tcl-xcgi (pure Tcl) ***

&| What         | '''tcl-xcgi''' |&
&| Where        | https://github.com/noyesno/tcl-xcgi |&
&| Description  | Implements [CGI], FastCGI, [SCGI]. |&
&| Requirements | Tcl 8.5? |&
&| Updated      | 2021-01 |&
&| Authors      | Sean Zhang |&


** Discussion **

[RLH] 10-18-2006: I read a couple things that indicated there is going to be a push to refine and enhance FastCGI and include it with Apache. The idea is to get away from the mod_<language> and have FastCGI give everyone a robust even playing field. We shall see. Here is a link to the info: [http://kasparov.skife.org/blog/src/apache_22_fcgi.html]

[ZLM] 2008-12-28: Microsoft released FastCGI extensions for IIS 6 and 7. These can be downloaded from http://www.iis.net/ .


** See also **
   * [Apache Toolbox]
   * [http://pdqi.com/w/pw/pdqi/THT/FastCGI%|%PDQI FastCGI] (1998)


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