5.4 Cache Table

(require web-server/private/cache-table)
	package: web-server-lib

This module provides a set of caching hash table functions.

procedure
(make-cache-table) → cache-table?

Constructs a cache-table.

procedure
(cache-table-lookup! ct id mk) → any/c
  ct : cache-table?
  id : symbol?
  mk : (-> any/c)

Looks up id in ct. If it is not present, then mk is called to construct the value and add it to ct.

procedure
(cache-table-clear! ct [entry-ids]) → void?
ct : cache-table?
entry-ids : (or/c false/c (listof symbol?)) = #f

If entry-ids is #f, clears all entries in ct. Otherwise, clears only the entries with keys in entry-ids.

Changed in version 6.9.0.1 of package web-server-lib: Added optional argument.

procedure
(cache-table? v) → boolean?
v : any/c

Determines if v is a cache table.