From 02aba668c408a473067bc26b8f36077384b9c14a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= Date: Tue, 8 Mar 2022 03:43:03 +0100 Subject: Add native UUID generator. While not necessary, since we barely use UUID:s, it's still WAY faster, and nice to not depend on the system providing `uuidgen'. For comparison, number of UUID:s generated by different settups in 1 second: 65.000 :: guile native 700 :: guile shell-out 3.500.000 :: c native 100.000 :: libuuid - guile bindings 650.000 :: libuuid Tests where run with either (call-with-time-limit 1 (lambda () (let loop () (uuid) (set! count (1+ count)) (loop))) (lambda _ (display count))) or volatile unsigned long long count = 0; sigaction(SIGALARM, ...); alarm(1); for (;;) { uuid(); count++; } (let ((count 0)) (call-with-time-limit 1 (lambda () (let loop () ((@ (hnh util) uuidgen)) (set! count (1+ count)) (loop))) (lambda _ (format #t "exec count = ~:d~%" count)))) --- module/vcomponent/util/instance/methods.scm | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'module/vcomponent/util/instance/methods.scm') diff --git a/module/vcomponent/util/instance/methods.scm b/module/vcomponent/util/instance/methods.scm index 120ab2fe..926f9bb8 100644 --- a/module/vcomponent/util/instance/methods.scm +++ b/module/vcomponent/util/instance/methods.scm @@ -1,5 +1,6 @@ (define-module (vcomponent util instance methods) :use-module (hnh util) + :use-module (hnh util uuid) :use-module (srfi srfi-1) :use-module (srfi srfi-41) :use-module (srfi srfi-41 util) @@ -93,7 +94,7 @@ (add-child! calendar event) (unless (prop event 'UID) - (set! (prop event 'UID) (uuidgen))) + (set! (prop event 'UID) (uuid))) -- cgit v1.2.3