Joey Hess 4224fae71f optimise read and write for Keys database (untested) ... Writes are optimised by queueing up multiple writes when possible. The queue is flushed after the Annex monad action finishes. That makes it happen on program termination, and also whenever a nested Annex monad action finishes. Reads are optimised by checking once (per AnnexState) if the database exists. If the database doesn't exist yet, all reads return mempty. Reads also cause queued writes to be flushed, so reads will always be consistent with writes (as long as they're made inside the same Annex monad). A future optimisation path would be to determine when that's not necessary, which is probably most of the time, and avoid flushing unncessarily. Design notes for this commit: - separate reads from writes - reuse a handle which is left open until program exit or until the MVar goes out of scope (and autoclosed then) - writes are queued - queue is flushed periodically - immediate queue flush before any read - auto-flush queue when database handle is garbage collected - flush queue on exit from Annex monad (Note that this may happen repeatedly for a single database connection; or a connection may be reused for multiple Annex monad actions, possibly even concurrent ones.) - if database does not exist (or is empty) the handle is not opened by reads; reads instead return empty results - writes open the handle if it was not open previously		2015-12-23 19:18:52 -04:00
..
Android
android
assistant
automatic_conflict_resolution
backends
bare_repositories
bugs		2015-12-21 19:50:38 +00:00
coding_style	response	2015-09-29 11:26:42 -04:00
contact
copies
design	poll vote (My phone (or MP3 player))	2015-12-16 07:09:17 +00:00
devblog	comment	2015-12-19 14:27:22 -04:00
direct_mode
download	sigh @ encfs...	2015-11-30 15:22:00 -04:00
ekg
encryption
footer
forum	Added a comment	2015-12-21 17:47:13 +00:00
future_proofing
git-annex-copy
git-annex-direct
how_it_works
install	link to neurodebian standalone deb	2015-12-22 12:34:28 -04:00
internals
license
links
metadata
news	add news item for git-annex 5.20151218	2015-12-18 14:48:04 -04:00
not
polls
preferred_content
required_content
scalability
special_remotes	comment	2015-12-10 11:22:28 -04:00
stickers	Added a comment	2015-11-20 08:37:39 +00:00
sync
templates
testimonials
tips	response	2015-12-08 11:13:55 -04:00
todo	optimise read and write for Keys database (untested)	2015-12-23 19:18:52 -04:00
trust
tuning
upgrades
use_case
users	I'm feeling.. typoish	2015-11-10 17:00:06 -04:00
videos
walkthrough	Added a comment	2015-12-10 18:58:46 +00:00
Android.mdwn
assistant.mdwn
automatic_conflict_resolution.mdwn
backends.mdwn
bare_repositories.mdwn
bugs.mdwn
builds.mdwn	add i386-ancient build	2015-09-23 13:36:45 -04:00
chunking.mdwn
coding_style.mdwn	m	2015-12-05 19:52:38 +00:00
comments.mdwn
contact.mdwn
contribute.mdwn
copies.mdwn
design.mdwn
devblog.mdwn
direct_mode.mdwn	don't let git-annex direct be run in a v6 repo	2015-12-04 16:33:09 -04:00
distributed_version_control.mdwn
download.mdwn
ekg.mdwn
encryption.mdwn
favicon.ico
forum.mdwn
future_proofing.mdwn
git-annex-add.mdwn	doc update	2015-12-15 14:17:34 -04:00
git-annex-addunused.mdwn
git-annex-addurl.mdwn	addurl: Added --with-files option.	2015-12-22 12:20:39 -04:00
git-annex-assistant.mdwn	meant to be in prev commit	2015-11-02 11:22:02 -04:00
git-annex-checkpresentkey.mdwn
git-annex-contentlocation.mdwn
git-annex-copy.mdwn
git-annex-dead.mdwn
git-annex-describe.mdwn
git-annex-diffdriver.mdwn
git-annex-direct.mdwn	don't let git-annex direct be run in a v6 repo	2015-12-04 16:33:09 -04:00
git-annex-drop.mdwn	drop -Jn	2015-11-04 17:13:20 -04:00
git-annex-dropkey.mdwn
git-annex-dropunused.mdwn
git-annex-edit.mdwn
git-annex-enableremote.mdwn	enableremote: List uuids and descriptions of remotes that can be enabled, and accept either the uuid or the description in leu if the name.	2015-10-26 14:55:40 -04:00
git-annex-examinekey.mdwn
git-annex-expire.mdwn
git-annex-find.mdwn
git-annex-findref.mdwn
git-annex-fix.mdwn
git-annex-forget.mdwn
git-annex-fromkey.mdwn
git-annex-fsck.mdwn	parallel fsck (yes, these changes are all it takes now!)	2015-11-04 16:28:14 -04:00
git-annex-fuzztest.mdwn
git-annex-get.mdwn
git-annex-group.mdwn
git-annex-groupwanted.mdwn
git-annex-import.mdwn	work around git check-ignore --batch bad exit status bug, and bring back import -J	2015-11-06 15:39:51 -04:00
git-annex-importfeed.mdwn
git-annex-indirect.mdwn	don't let git-annex direct be run in a v6 repo	2015-12-04 16:33:09 -04:00
git-annex-info.mdwn
git-annex-init.mdwn	Use git-annex init --version=6 to get v6 for now	2015-12-15 17:17:13 -04:00
git-annex-initremote.mdwn
git-annex-list.mdwn
git-annex-lock.mdwn	v6 git-annex unlock	2015-12-10 16:12:48 -04:00
git-annex-log.mdwn
git-annex-lookupkey.mdwn
git-annex-map.mdwn
git-annex-matching-options.mdwn
git-annex-merge.mdwn
git-annex-metadata.mdwn
git-annex-migrate.mdwn
git-annex-mirror.mdwn
git-annex-move.mdwn
git-annex-numcopies.mdwn
git-annex-pre-commit.mdwn	avoid pre-commit hook messing up new-style unlocked files in v6 repo	2015-12-09 15:18:54 -04:00
git-annex-preferred-content.mdwn
git-annex-proxy.mdwn
git-annex-readpresentkey.mdwn
git-annex-registerurl.mdwn
git-annex-reinit.mdwn
git-annex-reinject.mdwn	Do verification of checksums of annex objects downloaded from remotes.	2015-10-01 15:56:39 -04:00
git-annex-rekey.mdwn
git-annex-remotedaemon.mdwn
git-annex-repair.mdwn
git-annex-required.mdwn
git-annex-resolvemerge.mdwn
git-annex-rmurl.mdwn
git-annex-schedule.mdwn
git-annex-semitrust.mdwn
git-annex-setkey.mdwn	Do verification of checksums of annex objects downloaded from remotes.	2015-10-01 15:56:39 -04:00
git-annex-setpresentkey.mdwn
git-annex-shell.mdwn	git-annex-shell: Added lockcontent command, to prevent dropping of key's content.	2015-10-08 14:47:46 -04:00
git-annex-smudge.mdwn	fix docs	2015-12-16 16:00:41 -04:00
git-annex-status.mdwn	status: Show added but not yet committed files.	2015-09-22 17:32:28 -04:00
git-annex-sync.mdwn
git-annex-test.mdwn
git-annex-testremote.mdwn
git-annex-transferkey.mdwn
git-annex-transferkeys.mdwn
git-annex-trust.mdwn
git-annex-unannex.mdwn
git-annex-undo.mdwn
git-annex-ungroup.mdwn
git-annex-uninit.mdwn
git-annex-unlock.mdwn	v6 git-annex unlock	2015-12-10 16:12:48 -04:00
git-annex-untrust.mdwn
git-annex-unused.mdwn
git-annex-upgrade.mdwn
git-annex-vadd.mdwn
git-annex-vcycle.mdwn
git-annex-version.mdwn
git-annex-vfilter.mdwn
git-annex-vicfg.mdwn
git-annex-view.mdwn
git-annex-vpop.mdwn
git-annex-wanted.mdwn
git-annex-watch.mdwn
git-annex-webapp.mdwn
git-annex-whereis.mdwn
git-annex-xmppgit.mdwn
git-annex.mdwn	merge clean into smudge command	2015-12-04 15:32:47 -04:00
git-union-merge.mdwn
how_it_works.mdwn
index.mdwn
install.mdwn	remove obsolte note about sid package being out of date	2015-12-22 12:31:58 -04:00
internals.mdwn
license.mdwn
location_tracking.mdwn
logo-old-bw.svg
logo-old.png
logo-old.svg
logo-old_small.png
logo.mdwn	copy license info for logo onto logo page	2015-11-20 16:25:08 -04:00
logo.svg
logo_16x16.png
logo_32x32.png
logo_small.png
meta.mdwn
metadata.mdwn
news.mdwn
not.mdwn	git-lfs lacks partial checkout support	2015-11-23 12:44:54 -04:00
polls.mdwn	2015 user survey	2015-10-19 15:15:04 -04:00
preferred_content.mdwn
privacy.mdwn
publicrepos.mdwn
related_software.mdwn
repomap.png
required_content.mdwn
scalability.mdwn
shortcuts.mdwn
sidebar.mdwn
sitemap.mdwn
special_remotes.mdwn	add Blackblaze B2 extranal special remote to the list	2015-12-11 11:06:02 -04:00
stickers.mdwn	improve	2015-11-19 18:56:24 -04:00
submodules.mdwn
summary.mdwn
sync.mdwn
testimonials.mdwn
thanks.mdwn	update	2015-10-20 00:43:18 -04:00
tips.mdwn
todo.mdwn
transferring_data.mdwn
trust.mdwn
tuning.mdwn
upgrades.mdwn	fix docs	2015-12-16 16:00:41 -04:00
users.mdwn
videos.mdwn
Void.mdwn
walkthrough.mdwn