Commit Graph

147 Commits

Author SHA1 Message Date
Jakob Borg
6755a9ca63 Fix bufferpool puts (ref #4976) (#6125)
* Fix bufferpool puts (ref #4976)

There was a logic error in Put() which made us put all large blocks into
segment zero, where we subsequently did not look for them.

I also added a lowest threshold, as we otherwise allocate a 128KiB
buffer when we need 24 bytes for a header and such.

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* smaller stress

* cap/len

* wip

* wip
2019-11-06 10:53:10 +00:00
Audrius Butkevicius
98a1adebe1 all: Remove dead code, fix lost msgLen checks (#6129) 2019-11-06 07:09:58 +01:00
Jakob Borg
ad2d3702ae all: Upgrade github.com/gogo/protobuf and regenerate (fixes #6085) 2019-10-18 09:53:59 +02:00
Simon Frei
a0c9db1d09 lib/api: Unify JSON marshalling of file infos (#6087) 2019-10-15 11:25:12 +02:00
Lukas Lihotzki
96bb1c8e29 all, lib/logger: Refactor SetDebug calls (#6054) 2019-10-04 13:03:34 +02:00
Jakob Borg
80894948f6
build: Upgrade github.com/gogo/protobuf (#5994)
This is the result of:

- Changing build.go to take the protobuf version from the modules
  instead of hardcoded
- `go get github.com/gogo/protobuf@v1.3.0` to upgrade
- `go run build.go proto` to regenerate our code
2019-09-04 07:33:29 +01:00
Simon Frei
7a4c88d4e4 lib: Add mtime window when comparing files (#5852) 2019-07-23 21:48:53 +02:00
Simon Frei
82b70b9fae lib/model, lib/protocol: Track closing connections (fixes #5828) (#5829) 2019-07-14 11:03:55 +02:00
Aurélien Rainone
f1a7dd766e all: Add comment to ensure correct atomics alignment (fixes #5813)
Per the sync/atomic bug note:

> On ARM, x86-32, and 32-bit MIPS, it is the caller's
> responsibility to arrange for 64-bit alignment of 64-bit words
> accessed atomically. The first word in a variable or in an
> allocated struct, array, or slice can be relied upon to be
> 64-bit aligned.

All atomic accesses of 64-bit variables in syncthing code base are
currently ok (i.e they are all 64-bit aligned).

Generally, the bug is triggered because of incorrect alignement
of struct fields. Free variables (declared in a function) are
guaranteed to be 64-bit aligned by the Go compiler.

To ensure the code remains correct upon further addition/removal
of fields, which would change the currently correct alignment, I
added the following comment where required:

     // atomic, must remain 64-bit aligned

See https://golang.org/pkg/sync/atomic/#pkg-note-BUG.
2019-07-13 14:05:39 +01:00
Simon Frei
02752af862 lib/protocol: Don't block on Close (fixes #5794) (#5795) 2019-06-14 19:04:41 +02:00
Simon Frei
e39d3f95dd lib/protocol: Prioritize close msg and add close timeout (#5746) 2019-06-05 14:01:59 +08:00
Simon Frei
6664e01acf lib/protocol: Return from ClusterConfig when closed (#5752) 2019-05-29 12:14:00 +02:00
Simon Frei
3775a64d5c lib/protocol: Don't send anything else before cluster config (#5741) 2019-05-27 11:15:34 +01:00
Simon Frei
9e6db72535 lib/protocol: Don't call receiver after calling Closed (fixes #4170) (#5742)
* lib/protocol: Don't call receiver after calling Closed (fixes #4170)

* review
2019-05-25 20:08:07 +01:00
Simon Frei
5d35b2c540 lib/protocol: Test for Close on blocking send deadlock (ref #5442) (#5732) 2019-05-23 21:42:02 +01:00
Simon Frei
283f39ae5f lib/protocol: Revert unreleased changes related to closing connections (#5688)
This reverts commits:
    ec7c88ca55
    19b51c9b92
    5da41f75fa
    04b927104f
2019-05-08 08:08:26 +02:00
Simon Frei
9f358ecae0
lib/protocol: Refactor to pass only relevant argument to writeMessage (#5681) 2019-05-02 14:09:19 +02:00
Simon Frei
ec7c88ca55 lib/protocol: Fix yet another deadlock (fixes #5678) (#5679)
* lib/protocol: Fix yet another deadlock (fixes #5678)

* more consistency

* read deadlock

* naming

* more naming
2019-05-02 09:21:07 +01:00
Simon Frei
19b51c9b92 lib/protocol: Don't close asyncMessage.done on success (fixes #5674) (#5675) 2019-04-29 17:52:57 +02:00
Simon Frei
5da41f75fa lib/model, lib/protocol: Wait for reader/writer loops on close (fixes #4170) (#5657)
* lib/protocol: Wait for reader/writer loops on close (fixes #4170)

* waitgroup

* lib/model: Don't hold lock while closing connection

* fix comments

* review (lock once, func argument) and naming
2019-04-28 11:58:51 +01:00
Simon Frei
04b927104f lib/protocol: Don't send any messages before cluster config (#5646)
* lib/model: Send cluster config before releasing pmut

* reshuffle

* add model.connReady to track cluster-config status

* Corrected comments/strings

* do it in protocol
2019-04-23 20:47:11 +01:00
Jakob Borg
bf3834e367
lib/protocol: Use constants instead of init time hashing (fixes #5624) (#5625)
This constructs the map of hashes of zero blocks from constants instead
of calculating it at startup time. A new test verifies that the map is
correct.
2019-03-27 20:20:30 +01:00
Jakob Borg
c2ddc83509 all: Revert the underscore sillyness 2019-02-02 12:16:27 +01:00
Jakob Borg
0b2cabbc31
all: Even more boring linter fixes (#5501) 2019-02-02 11:45:17 +01:00
Jakob Borg
2111386ee4
all: Fix some linter errors (#5499)
I'm working through linter complaints, these are some fixes. Broad
categories:

1) Ignore errors where we can ignore errors: add "_ = ..." construct.
you can argue that this is annoying noise, but apart from silencing the
linter it *does* serve the purpose of highlighting that an error is
being ignored. I think this is OK, because the linter highlighted some
error cases I wasn't aware of (starting CPU profiles, for example).

2) Untyped constants where we though we had set the type.

3) A real bug where we ineffectually assigned to a shadowed err.

4) Some dead code removed.

There'll be more of these, because not all packages are fixed, but the
diff was already large enough.
2019-02-02 10:11:42 +01:00
Jakob Borg
76af0cf07b
lib/protocol: Remove support for v0.13 hello messages (#5461) 2019-01-17 20:48:43 +01:00
Jakob Borg
b01edca420
all: Update protobuf package 1.0.0 -> 1.2.0 (#5452)
Also adds a few file global options to keep the generated code similar
to what we already had.
2019-01-14 11:53:36 +01:00
Simon Frei
c87411851d lib/protocol: Fix potential deadlock when closing connection (ref #5440) (#5442) 2019-01-14 08:32:37 +01:00
Simon Frei
24ffd8be99 all: Send Close BEP msg on intentional disconnect (#5440)
This avoids waiting until next ping and timeout until the connection is actually
closed both by notifying the peer of the disconnect and by immediately closing
the local end of the connection after that. As a nice side effect, info level
logging about dropped connections now have the actual reason in it, not a generic
timeout error which looks like a real problem with the connection.
2019-01-09 17:31:09 +01:00
Jakob Borg
944ddcf768
all: Become a Go module (fixes #5148) (#5384)
* go mod init; rm -rf vendor

* tweak proto files and generation

* go mod vendor

* clean up build.go

* protobuf literals in tests

* downgrade gogo/protobuf
2018-12-18 12:36:38 +01:00
Simon Frei
4f27bdfc27 lib/model, lib/protocol: Handle request concurrency in model (#5216) 2018-11-13 08:53:55 +01:00
Alexandre Viau
9745679c63 lib: chmod -x on progressemitter.go and errors.go (#5281) 2018-10-21 16:08:14 +01:00
Simon Frei
c8652222ef all: Check files on disk/in db when deleting/renaming (fixes #5194) (#5195) 2018-09-16 09:48:14 +02:00
Jakob Borg
f822b10550
all: Add receive only folder type (#5027)
Adds a receive only folder type that does not send changes, and where the user can optionally revert local changes. Also changes some of the icons to make the three folder types distinguishable.
2018-07-12 11:15:57 +03:00
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
Jakob Borg
a467f6908c
lib/protocol: Test for IsEquivalent (#4996) 2018-06-08 12:02:16 +02:00
Jakob Borg
76f9e5c5db
lib/protocol: Correct block size calculation on 32 bit archs (fixes #4990) (#4991) 2018-06-06 09:59:33 +02:00
Simon Frei
5baa432906 lib/db: Add index to track locally needed files (#4958)
To optimize WithNeed, which is called for the local device whenever an index
update is received. No tracking for remote devices to conserve db space, as
WithNeed is only queried for completion.
2018-06-02 15:08:32 +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
Iain Barnett
4d3b5348ae lib/protocol: Add note about non-standard Luhn calculation (#4895)
Skip-check: authors
2018-04-20 18:52:03 +02:00
Jakob Borg
19c7cd99f5 all: Implement variable sized blocks (fixes #4807) 2018-04-16 19:08:50 +01:00
Simon Frei
158859a1e2 lib: Handle metadata changes for send-only folders (fixes #4616, fixes #4627) (#4750)
Unignored files are marked as conflicting while scanning, which is then resolved
in the subsequent pull. Automatically reconciles needed items on send-only
folders, if they do not actually differ except for internal metadata.
2018-02-25 09:39:00 +01:00
Simon Frei
68c1b2dd47 all: Revert simultaneously walk fs and db on scan (fixes #4756) (#4757)
This reverts commit 6d3f9d5154.
2018-02-14 08:59:46 +01:00
Simon Frei
4955297bf6
lib/protocol: Invalid files should always lose (#4747) 2018-02-10 19:40:57 +01:00
Simon Frei
6d3f9d5154
all: Simultaneously walk fs and db on scan (fixes #2571, fixes #4573) (#4584)
When scanner.Walk detects a change, it now returns the new file info as well as the old file info. It also finds deleted and ignored files while scanning.
Also directory deletions are now always committed to db after their children to prevent temporary failure on remote due to non-empty directory.
2018-02-10 16:56:53 +01:00
Jakob Borg
b97d5bcca8
Remove KCP (fixes #4737) (#4741) 2018-02-09 11:40:57 +01:00
Jakob Borg
5d0eb80204 lib/protocol: Disable broken KCP benchmark 2018-01-28 10:41:03 +01:00
Audrius Butkevicius
72172d853c vendor: Move back to upstream KCP (fixes #4407)
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4614
2017-12-27 11:33:12 +00:00
Jakob Borg
d1d967f0cf lib/db: Keep folder meta data persistently in db (fixes #4400)
This keeps the data we need about sequence numbers and object counts
persistently in the database. The sizeTracker is expanded into a
metadataTracker than handled multiple folders, and the Counts struct is
made protobuf serializable. It gains a Sequence field to assist in
tracking that as well, and a collection of Counts become a CountsSet
(for serialization purposes).

The initial database scan is also a consistency check of the global
entries. This shouldn't strictly be necessary. Nonetheless I added a
created timestamp to the metadata and set a variable to compare against
that. When the time since the metadata creation is old enough, we drop
the metadata and rebuild from scratch like we used to, while also
consistency checking.

A new environment variable STCHECKDBEVERY can override this interval,
and for example be set to zero to force the check immediately.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4547
LGTM: imsodin
2017-12-14 09:51:17 +00:00
Simon Frei
c080f677cb all: Add invalid/ignored files to global list, announce to peers (fixes #623)
This lets us determine accurate completion status for remote peers when they
have ignored files.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4460
2017-11-11 19:18:17 +00:00