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| author | Hugo Hörnquist <hugo@lysator.liu.se> | 2022-03-08 03:43:03 +0100 |
|---|---|---|
| committer | Hugo Hörnquist <hugo@lysator.liu.se> | 2022-03-15 01:43:12 +0100 |
| commit | 02aba668c408a473067bc26b8f36077384b9c14a (patch) | |
| tree | dfd8b1de9002a97bd3410d3ab3389100b8e2ff4a /module/vcomponent | |
| parent | Popup created events now don't take seconds. (diff) | |
| download | calp-02aba668c408a473067bc26b8f36077384b9c14a.tar.gz calp-02aba668c408a473067bc26b8f36077384b9c14a.tar.xz | |
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))))
Diffstat (limited to 'module/vcomponent')
| -rw-r--r-- | module/vcomponent/formats/vdir/save-delete.scm | 3 | ||||
| -rw-r--r-- | module/vcomponent/util/instance/methods.scm | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/module/vcomponent/formats/vdir/save-delete.scm b/module/vcomponent/formats/vdir/save-delete.scm index 6068e34c..7de9379b 100644 --- a/module/vcomponent/formats/vdir/save-delete.scm +++ b/module/vcomponent/formats/vdir/save-delete.scm @@ -11,6 +11,7 @@ (define-module (vcomponent formats vdir save-delete) :use-module (hnh util) + :use-module (hnh util uuid) :use-module ((hnh util path) :select (path-append)) :use-module ((hnh util exceptions) :select (assert)) :use-module (vcomponent formats ical output) @@ -24,7 +25,7 @@ (assert (eq? 'vdir (prop calendar '-X-HNH-SOURCETYPE))) - (let* ((uid (or (prop event 'UID) (uuidgen)))) + (let* ((uid (or (prop event 'UID) (uuid)))) (set! (prop event 'UID) uid ;; TODO use existing filename if present? (prop event '-X-HNH-FILENAME) (path-append 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))) |