Commit Graph

18 Commits

Author SHA1 Message Date
Simon Frei
78bd0341a8
all: Handle errors opening db/creating file-set (ref #5907) (#7150) 2020-12-21 12:59:22 +01:00
Jakob Borg
a728743c86
lib/db: Use Commit() instead of commit() (#6330)
The readWriteTransaction offered both commit() (the one to use) and
Commit() (via embedding) where the latter didn't close the read
transaction. This removes the lower cased variant in order to prevent
the mistake.

The only place where the mistake was made was the new gc runner, where
it would leave a read snapshot open forever.
2020-02-12 11:59:55 +01:00
Simon Frei
29736b1e33
lib/db: Add closeWaitGroup to allow async operation (#6317) 2020-02-11 14:31:43 +01:00
Simon Frei
0bec01b827 lib/db: Remove *instance by making everything *Lowlevel (#6204) 2019-12-02 08:18:04 +01:00
Jakob Borg
c71116ee94
Implement database abstraction, error checking (ref #5907) (#6107)
This PR does two things, because one lead to the other:

- Move the leveldb specific stuff into a small "backend" package that
defines a backend interface and the leveldb implementation. This allows,
potentially, in the future, switching the db implementation so another
KV store should we wish to do so.

- Add proper error handling all along the way. The db and backend
packages are now errcheck clean. However, I drew the line at modifying
the FileSet API in order to keep this manageable and not continue
refactoring all of the rest of Syncthing. As such, the FileSet methods
still panic on database errors, except for the "database is closed"
error which is instead handled by silently returning as quickly as
possible, with the assumption that we're anyway "on the way out".
2019-11-29 09:11:52 +01:00
Simon Frei
ca3ae64bbf lib/db: Flush batch based on size and refactor (fixes #5531) (#5536)
Flush the batch when exceeding a certain size, instead of when reaching a number
of batched operations.
Move batch to lowlevel to be able to use it in NamespacedKV.
Increase the leveldb memory buffer from 4 to 16 MiB.
2019-02-14 23:15:13 +00:00
Simon Frei
42bd42df5a lib/db: Do all update operations on a single item at once (#5441)
To do so the BlockMap struct has been removed. It behaves like any other prefixed
part of the database, but was not integrated in the recent keyer refactor. Now
the database is only flushed when files are in a consistent state.
2019-01-23 10:22:33 +01:00
Jakob Borg
b50d57b7fd
lib/db: Refactor: use a Lowlevel type underneath Instance (ref #5198) (#5212)
This adds a thin type that holds the state associated with the
leveldb.DB, leaving the huge Instance type more or less stateless. Also
moves some keying stuff into the DB package so that other packages need
not know the keying specifics.

(This does not, yet, fix the cmd/stindex program, in order to keep the
diff size down. Hence the keying constants are still exported.)
2018-10-10 11:34:24 +02:00
Jakob Borg
b1b68ceedb
Add LocalFlags to FileInfo (#4952)
We have the invalid bit to indicate that a file isn't good. That's enough for remote devices. For ourselves, it would be good to know sometimes why the file isn't good - because it's an unsupported type, because it matches an ignore pattern, or because we detected the data is bad and we need to rescan it.

Or, and this is the main future reason for the PR, because it's a change detected on a receive only device. We will want something like the invalid flag for those changes, but marking them as invalid today means the scanner will rehash them. Hence something more fine grained is required.

This introduces a LocalFlags fields to the FileInfo where we can stash things that we care about locally. For example,

    FlagLocalUnsupported = 1 << 0 // The kind is unsupported, e.g. symlinks on Windows
    FlagLocalIgnored     = 1 << 1 // Matches local ignore patterns
    FlagLocalMustRescan  = 1 << 2 // Doesn't match content on disk, must be rechecked fully

The LocalFlags fields isn't sent over the wire; instead the Invalid attribute is calculated based on the flags at index sending time. It's on the FileInfo anyway because that's what we serialize to database etc.

The actual Invalid flag should after this just be considered when building the global state and figuring out availability for remote devices. It is not used for local file index entries.
2018-06-24 09:50:18 +02:00
Audrius Butkevicius
ef0dcea6a4 lib/model: Verify request content against weak (and possibly strong) hash (#4767) 2018-05-05 10:24:44 +02:00
Jakob Borg
f7fc0c1d3e all: Update license url to https (ref #3976) 2017-02-09 08:04:16 +01:00
Jakob Borg
d41c131364 build: Enable gometalinter "gosimple" check, improve build.go 2016-12-21 14:53:45 +01:00
Jakob Borg
fa0101bd60 lib/protocol, lib/discover, lib/db: Use protocol buffer serialization (fixes #3080)
This changes the BEP protocol to use protocol buffer serialization
instead of XDR, and therefore also the database format. The local
discovery protocol is also updated to be protocol buffer format.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3276
LGTM: AudriusButkevicius
2016-07-04 10:40:29 +00:00
Jakob Borg
ac190b2e39 Change DB label format (index folders, devices) 2016-01-03 19:32:40 +01:00
Jakob Borg
2a4fc28318 We should pass around db.Instance instead of leveldb.DB
We're going to need the db.Instance to keep some state, and for that to
work we need the same one passed around everywhere. Hence this moves the
leveldb-specific file opening stuff into the db package and exports the
dbInstance type.
2015-10-31 12:35:30 +01:00
Jakob Borg
4581c57478 Fix import paths 2015-09-22 19:38:46 +02:00
Jakob Borg
4a9997e449 lib/db need not depend on lib/config 2015-09-04 12:01:00 +02:00
Jakob Borg
7705a6c1f1 mv internal lib 2015-08-09 09:35:26 +02:00