26 lines
780 B
Scheme
26 lines
780 B
Scheme
|
; Copyright (c) 1993-1999 by Richard Kelsey and Jonathan Rees. See file COPYING.
|
||
|
; Session data
|
||
|
|
||
|
; The initializers are saved in images.
|
||
|
|
||
|
(define *session-data-initializers* '())
|
||
|
|
||
|
(define (make-session-data-slot! init)
|
||
|
(let ((slot (length *session-data-initializers*)))
|
||
|
(set! *session-data-initializers* (cons init *session-data-initializers*))
|
||
|
(if (vector? (session-data))
|
||
|
(set-session-data! (list->vector
|
||
|
(reverse
|
||
|
(cons init
|
||
|
(reverse (vector->list (session-data))))))))
|
||
|
slot))
|
||
|
|
||
|
(define (session-data-ref slot)
|
||
|
(vector-ref (session-data) slot))
|
||
|
|
||
|
(define (session-data-set! slot value)
|
||
|
(vector-set! (session-data) slot value))
|
||
|
|
||
|
(define (initialize-session-data!)
|
||
|
(set-session-data! (list->vector (reverse *session-data-initializers*))))
|