Object ::acs::per_thread_cache (public)

 ::acs::LockfreeCache ::acs::per_thread_cache

Defined in packages/acs-tcl/tcl/acs-cache-procs.tcl

Lockfree cache with per-thread live time of the entries. The per-thread caches use namespaced variables, which are not touched by the automatic per-request cleanup routines of the server. So, the values cached in one requests can be used by some later request in the same thread. The entries are kept in per-thread caches as long as the thread lives, there is so far no automatic mechanism to flush these. So, per-thread caches are typically used for values fetched from the database, which do not change, unless the server is restarted. Note: the usage of per-thread caches is only recommended for static values, which do no change during the life time of the server, since there is so far no automatic measure in place to the flush values in every thread.

• ::acs::per_thread_cache get -key /value/ /var/
• ::acs::per_thread_cache eval -key /value/ ?-no_cache /value/? ?-no_empty? ?-from_cache_indicator /value/? /cmd/
• ::acs::per_thread_cache flush ?-pattern /value/?

Testcases:

No testcase defined.

Source code:

XQL Not present:

Generic, PostgreSQL, Oracle