;; Structures and interfaces for servlets.
;; NOTE: SSAX/lib/packages.scm must be loaded before you can use this
;; downloadable from http://sourceforge.net/project/showfiles.php?group_id=30687
;; (take the r5rs compliant version (ssax-sr5rs-plt200-4.9.tar.gz))

(define-interface rt-module-language-interface 
  (export ((lambda-interface 
	    with-names-from-rt-structure)
	   :syntax)
	  reify-structure
	  load-structure
	  load-config-file
	  rt-structure-binding))

(define-interface rt-modules-interface
  (export interface-value-names 
	  reify-structure
	  load-config-file
	  rt-structure-binding
	  load-structure))

(define-structure rt-module-language rt-module-language-interface
  (open scheme
	rt-modules)
  (for-syntax (open scheme
		    rt-modules))
  (begin
    (define-syntax lambda-interface
      (lambda (expr rename compare)
	(let ((%lambda (rename 'lambda))
	      (interface-name (cadr expr))
	      (body (cddr expr)))
	  `(,%lambda ,(interface-value-names interface-name) ,@body))))

;(with-names-from-rt-structure plugin plugin-interface (main))
    (define-syntax with-names-from-rt-structure
      (lambda (expr rename compare)
	(let ((%lambda (rename 'lambda))
	      (%let (rename 'let))
	      (%rt-structure-value (rename 'rt-structure-value))
	      (%rt-structure-binding (rename 'rt-structure-binding))
	      (rt-structure (cadr expr))
	      (interface-name (caddr expr))
	      (body (cdddr expr)))
 	  (let ((ivn (interface-value-names interface-name)))
	    `(,%let ((,%rt-structure-value ,rt-structure))
	       ((,%lambda ,ivn ,@body)
		,@(map (lambda (name)
			 `(,%rt-structure-binding ,%rt-structure-value ',name))
		       ivn)))))))))

(define-structure rt-modules rt-modules-interface
  (open scheme
	meta-types ; syntax-type
	interfaces ; for-each-declaration
	define-record-types
	records
	signals
	bindings
	packages
	packages-internal
	locations
	environments
	ensures-loaded
	package-commands-internal)
  (files rt-module))

(define-interface servlet-handler-interface
  (export servlet-handler))


(define-structures
  ((servlet-handler servlet-handler-interface)
   (plugin-utilities plugin-utilities-interface))
  (open	httpd-responses
	httpd-request
	uri				;URI-PATH-LIST->PATH
	tables				;HASH-TABLES
	define-record-types		;DEFINE-RECORD-TYPE
	rt-module-language		;get structures dynamically
;	srfi-13				;string
	srfi-14				;CHAR-SET:DIGIT
	handle-fatal-error		;WITH-FATAL-ERROR-HANDLER* et al.
	srfi-27				;random numbers
	locks				;MAKE-LOCK et al.
	thread-cells			;THREAD-CELL et al.
	profiling			;PROFILE-SPACE
	httpd-logging			;HTTP-SYSLOG
	shift-reset			;SHIFT and RESET
	sxml-to-html			;SXML->HTML
	scsh				;regexp et al.
	scheme
	)
  (files servlet-handler))

(define-interface plugin-utilities-interface
  (export send-html/suspend
	  send-html/finish
	  ))

(define-interface plugin-interface
  (export main))

(define-interface shift-reset-interface
  (export (reset :syntax)
	  (shift :syntax)))

(define-structure shift-reset shift-reset-interface
  (open scheme
	signals
	escapes
	thread-cells)
  (files shift-reset))

(define-interface profiling-interface
  (export profile-space
	  profile-result
	  profile-results
	  write-gnuplot-data-file

	  space-info-pair		space-info-symbol
	  space-info-vector		space-info-closure
	  space-info-location		space-info-cell
	  space-info-channel		space-info-port
	  space-info-ratnum		space-info-record
	  space-info-continuation	space-info-extended-number
	  space-info-template		space-info-weak-pointer
	  space-info-shared-binding	space-info-unused-d-header1
	  space-info-unused-d-header2	space-info-string
	  space-info-byte-vector	space-info-double
	  space-info-bignum		space-info-total

	  set-space-info-pair!			set-space-info-symbol!
	  set-space-info-vector!		set-space-info-closure!
	  set-space-info-location!		set-space-info-cell!
	  set-space-info-channel!		set-space-info-port!
	  set-space-info-ratnum!		set-space-info-record!
	  set-space-info-continuation!		set-space-info-extended-number!
	  set-space-info-template!		set-space-info-weak-pointer!
	  set-space-info-shared-binding!	set-space-info-unused-d-header1!
	  set-space-info-unused-d-header2!	set-space-info-string!
	  set-space-info-byte-vector!		set-space-info-double!
	  set-space-info-bignum!		set-space-info-total!

	  pure-count	  pure-bytes
	  impure-count	  impure-bytes
	  total-count	  total-bytes
	  ))

(define-structure profiling profiling-interface
  (open let-opt
	define-record-types
	spatial
	srfi-13
	srfi-1
	locks
	scsh
	scheme)
  (files profile))