").")
(:h2 "Features")
(:ul
- (:li "support of AllegroCL, CMUCL, SBCL with sb-thread, and Lispworks.")
+ (:li "support for AllegroCL, CMUCL, SBCL with sb-thread, and Lispworks.")
(:li "listener and worker socket/process management so that shutting down the listener closes all related open sockets and terminates all related proceses.")
(:li "support for running multiple command processors on multiple ports.")
(:li "transparent support for precomputing the HTML or XML response to take advantage of HTTP/1.1's Keep-Alive feature. This is switchable with a single keyword argument to the macro "
(:tt "with-ml-page")
".")
+ (:li "Optional timeout of worker processes")
+ (:li "Two process models for flexibility")
(:li "Demonstration processor included"))
(:h2 "Prerequisites")
(:ul
"http://www.fractalconcept.com")
").")
(:li "kmrcl library ("
- ((:a :href "http://files.b9.com/kmrcl")
- "http://files.b9.com/kmrcl")
+ ((:a :href "http://files.kpe.io/kmrcl")
+ "http://files.kpe.io/kmrcl")
").")
(:li "asdf ("
((:a :href "http://www.sf.net/projects/cclan")
(:h2 "Quickstart")
(:ul
(:li "The easiest way to install is to use the Debian GNU/Linux operating system. Using the testing or unstable distributions, you can give the command:"
- (:p
- "apt-get install libapache-mod-lisp cl-modlisp cl-kmrcl")
- (:p
+ (:div
+ (:tt "apt-get install libapache-mod-lisp cl-modlisp cl-kmrcl"))
+ (:div
"If you are not using Debian, you will need to download and install
mod_lisp, cl-modlisp, and cl-kmrcl manually."))
(:li
"Add something like the below to httpd.conf and then restart apache"
- (:br)
- "LispServer 127.0.0.1 20123 \"localhost\""
- (:br)
- "AddHandler lisp-handler .lsp")
+ (:div (:tt "LispServer 127.0.0.1 20123 \"localhost\""))
+ (:div (:tt "AddHandler lisp-handler .lsp")))
(:li
"Start your Lisp implementation and load cl-modlisp with"
- (:br)
- "(asdf:operate 'asdf:load-op 'modlisp)")
+ (:div (:tt "(asdf:operate 'asdf:load-op 'modlisp)")))
(:li
"Start the server with"
- (:br)
- "(ml:modlisp-start :port 20123)")
+ (:div (:tt "(ml:modlisp-start :port 20123)")))
(:li "Try some demostration pages"
- (:br)
- "links http://localhost/fixed.lsp"
- (:br)
- "links http://localhost/debug.lsp")
+ (:div (:tt "links http://localhost/fixed.lsp"))
+ (:div (:tt "links http://localhost/debug.lsp")))
(:li "Shutdown the all cl-modlisp servers with"
- (:br)
- "(ml:modlisp-stop-all)"))
+ (:div (:tt "(ml:modlisp-stop-all)"))))
+ (:h2 "Process Models")
+ (:p "There are two process models")
+ (:ul
+ (:li (:div (:b "Each connection spawns a new thread"))
+ (:div "This is the default model. Each new connection to listener socket spawns a new connection. This allows for an arbitrary number of concurrent connections. This has advantages if the workers require a long execution time."))
+ (:li (:div (:b "Fixed pool of workers"))
+ (:div "This model is selected by passing the number of worker processes to "
+ (:tt "init/listener")
+ " with the keyword "
+ (:tt "number-fixed-workers")
+ ". This model has a lower overhead since new processes are not created and destroyed with each connection. It has advantages when the workers have a short execution time.")))
+
(:h2 "Usage")
- (:p "The demo.lisp file for some examples of using cl-modlisp.")
- )))
+ (:p "The demo.lisp file for examples of using cl-modlisp.")
+ )
+
+ (:ul)
+ (:li (:div (:strong "Overview"))
+ (:div "cl-modlisp is a multi-threaded handler for HTTP requests forwarded by Marc Battyani's (http://www.fractalconcept.com) mod_lisp Apache module."))
+ (:li (:div (:strong "Design Goals"))
+ (:div "cl-modlisp is designed as a thin layer to dispatch a mod_lisp request with multi-platform compatibility. Currently, cl-modlisp supports SBCL [multithreaded], CMUCL, AllegroCL, and Lispworks."))
+ (:li (:div (:strong "Dispatch model"))
+ (:div "Extremely simple: All requests are forwarded to a single processor that is passed as a parameter to cl-modlisp's start-up function."))
+ (:li (:div (:strong "Configuration"))
+ (:div "All configuration is set by passing keyword arguments to
+modlisp-start")
+ (:ul
+ (:li "port number - a number")
+ (:li "processor - function designator which will receive all requests")
+ (:li "processor-args - list of extra arguments to be passed to processor")
+ (:li "timeout - NIL means never timeout otherwise number of seconds")
+ (:li "catch-errors - non-NIL means to catch errors")
+ (:li "number-fixed-workers - NIL means to spawn a new worker process for each request")
+ (:li "remote-host-checker - optional function designator to check the remote host IP address. Used for filtering requests.")))
+ (:li (:div (:strong "Processor function"))
+ (:div
+"This function receives an argument of the 'command' alist and any
+other arguments passed to modlisp-start as the :processor-args. The
+'command' alist is an associative list of keys and values received
+from modlisp. No preprocessing is done except that keys are converted
+from strings to keywords forced to the default implementation case."))
+ (:li (:div (:strong "Default Processor"))
+ (:div "The default processor is a simple demo command processor not intended for end-user."))
+ (:li (:div "URI Processing")
+ (:div "None. The raw URL is the value of the :url key in the command alist."))
+ (:li (:div "Responses")
+ (:div "Responses are written to modlisp:*modlisp-socket*. The raw HTTP/1.1 header needs to be generated by the application."))
+ (:li (:div "Utility functions")
+ (:div "A few utility functions are provided")
+ (:ul
+ (:li (:div "with-ml-page")
+ (:div "Outputs the body of the macro along with the HTTP/1.1 headers. Supports both precomputing responses with keep-alive connections and also outputing response to socket as it is generated. The latter is useful for lengthye reponses in time or length. Also support setting the content-type (default \"text/html\") and arbitrary list of headers."))
+ (:li (:div "query-to-alist")
+ (:div "Converts posted query to an alist. Doesn't handle multipart forms."))
+ (:li (:div "redirect-to-location"))))
+ (:li (:div (:strong "Known issues"))
+ (:ul
+ (:li "This application has been most tested on AllegroCL.")
+ (:li
+(:p "By design, is not practical an application platform. It is should have
+an API package wrapped around this library which supports useful
+features like processing URIs, dispatches, cookies, and querys [URI
+and single/multipart POSTs]")
+(:p
+"Rather than adding these features to cl-modlisp, I've been working on
+a library which uses a session-id and dispatch model based on Franz's
+webactions library. It also integrates my portable version of Franz's
+URI module and adds query processing similar on AllegroServer's
+request-query functions. This library can used with both cl-modlisp
+and AllegroServe as connectors. However, as this library has grown, it
+looks more and more like AllegroServe, I've begun to question the
+value of using this library compared to just using Portable
+AllegroServe with just my webactions-like session-id and dispatch
+processors. In my mind, the greatest advantage of using this library
+is that it is a much smaller task maintaining cross-implementation
+compatibility with the cl-modlisp connector version maintaining such
+compatibility with paserve. The disadvantage of this library is that I
+dislike cloning AllegroServe's query and cookie processing. I do so,
+though, because I think their API is quite reasonable. This library
+is currently driving http://umlisp.kpe.io/")
+)))))
projects / cl-modlisp.git / blobdiff