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This one doesn't require us to deal with poisoning, is upgradeable and
the right thing to use when locking access to data, not IO resources.
Change-Id: I78634953a73404500d28f51f1d93a87e215c8149
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11612
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
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Rust 1.77 supports async recursion as long as there is some form of
indirection (ie. `Box::pin`). This removes the need to use the
async-recursion crate.
Change-Id: Ic9613ab7f32016f0103032a861edff92e2fb8b41
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11596
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
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Since a recent nixpkgs bump bringing a version of cargo with
https://github.com/rust-lang/cargo/pull/12914,
crate2nix creates a crate-hashes.json with all crate hashes from
Cargo.lock (and downloads a lot of stuff while producing it).
https://github.com/nix-community/crate2nix/pull/341 prevents this from
happening, but our hardcoded crate2nix pin prevented us from getting the
fix included in 0.14.0, which did land in nixpkgs.
Replace the pin with a simply override, carrying our only leftover patch
on top of it, and link to that PR.
Change-Id: I9503898e15d61fa6a2b1589d141bec1b4ed3d616
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11581
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
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This is especially nice, as it allows us getting rid of the other
versions of proc-macro2 and quote.
Change-Id: I9fdd012ee6c0ded3e18ec30504b83ac2032d1390
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11474
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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This adds a Directory service using
https://cloud.google.com/bigtable/docs/ as a K/V store.
Directory (closures) are put in individual keys.
We don't do any bucketed upload of directory closures (yet), as castore/
fs does query individually, does not request recursively (and buffers).
This will be addressed by store composition at some point.
Change-Id: I7fada45bf386a78b7ec93be38c5f03879a2a6e22
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11212
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
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This bumps tonic and surrounding crates to 0.11.x.
We added support for tonic 0.11.x into tokio-listener
(https://github.com/vi/tokio-listener/pull/4), so that's bumped as well.
Change-Id: Icfade5894403228299836fefb21b2f9ae59dbebb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11156
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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The bugs have been fixed,
https://github.com/rust-lang/futures-rs/pull/2801 and
https://github.com/rust-lang/futures-rs/pull/2812 were merged and ended
up in that release.
Change-Id: Iefd990d2d1719b884504093343e54e9c5258e2e2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10414
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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The fix mentioned in Cargo.toml did land in
https://github.com/cloud-hypervisor/fuse-backend-rs/pull/162.
Change-Id: I4451f910806f05400f7e0f83581ae786f170b9e2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10375
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
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This fixes EOF handling for buffered readers.
Link: https://github.com/rust-lang/futures-rs/pull/2801
Change-Id: Ie98ca6a3e1de38500b0195e9b62511501acb1d2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10086
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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Similar to gen_directorysvc_grpc_client, introduce a
gen_blobsvc_grpc_client function that provides a gRPC client connected
to a blobservice.
The test is update to use that client to test against, rather than the
server trait, removing the last usage of tonic_mock, so it's removed
as well.
Fixes b/243.
Change-Id: If746e8600588da247eb53a63b70fe72f139e9e77
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9564
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
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This partially fixes b/312 and gets FUSE to work again on MacOS.
It is mostly small type changes and an update to fuse-backend-rs because
upstream currently doesn't work with MacFuse. It also sets the default
FUSE thread count on MacOS to 1 because otherwise the mount command will
hang when shutting down as only one thread gets ENODEV and all the others
just keep blocking.
Change-Id: Ifb3c4268caf296c487049c1dc4618acb32497f44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9490
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Reviewed-by: flokli <flokli@flokli.de>
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It's in no release yet, but this is the current rev in master.
Change-Id: I9e4bc2fde26e85c4182bd66b3e566c2d957072ed
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9469
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
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This switches the FUSE implementation from fuser to fuse-backend-rs.
fuse-backend-rs is designed to work with both FUSE and virtiofs.
Virtiofs support will make it possible to plug the tvix-store into a
microvm and have `/nix/store` access without having to setup FUSE inside
the guest.
Additionally fuse-backend-rs has nice support for running multiple FUSE
threads and has some async support.
The goal of this commit is to mechanically switch over to
fuse-backend-rs with minimal changes. I did have to add some locks here
and there because fuse-backend-rs uses `&self` on all methods whereas
fuser uses `&mut self`. `&self` is required for concurrent access to the
FUSE server, so this makes sense.
We can consider switching to concurrent maps and use some other
techniques to reduce lock contention and critical section size.
Issue: https://b.tvl.fyi/issues/305
Change-Id: Icde5a58c6eef98f8984c1e04e980b756dfb76b47
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9341
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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PR'ed at https://github.com/tvlfyi/wu-manber/pull/1, and now merged.
Change-Id: I8c71e359196396a1d42a3ea2ab7ac15b137b2db0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8992
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
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Our fork fixes a small bug (https://github.com/jneem/wu-manber/pull/1)
but it's not clear whether upstream will accept patches, so for now
lets point this directly at our fork.
Change-Id: Iccdcedae3e9a8b783241431787c952561d032694
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8031
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Switch out the string-scanning algorithm used in the reference scanner.
The construction of aho-corasick automata made up the vast majority of
runtime when evaluating nixpkgs previously. While the actual scanning
with a constructed automaton is relatively fast, we almost never scan
for the same set of strings twice and the cost is not worth it.
An algorithm that better matches our needs is the Wu-Manber multiple
string match algorithm, which works efficiently on *long* and *random*
strings of the *same length*, which describes store paths (up to their
hash component).
This switches the refscanner crate to a Rust implementation[0][1] of
this algorithm.
This has several implications:
1. This crate does not provide a way to scan streams. I'm not sure if
this is an inherent problem with the algorithm (probably not, but
it would need buffering). Either way, related functions and
tests (which were actually unused) have been removed.
2. All strings need to be of the same length. For this reason, we
truncate the known paths after their hash part (they are still
unique, of course).
3. Passing an empty set of matches, or a match that is shorter than
the length of a store path, causes the crate to panic. We safeguard
against this by completely skipping the refscanning if there are no
known paths (i.e. when evaluating the first derivation of an eval),
and by bailing out of scanning a string that is shorter than a
store path.
On the upside, this reduces overall runtime to less 1/5 of what it was
before when evaluating `pkgs.stdenv.drvPath`.
[0]: Frankly, it's a random, research-grade MIT-licensed
crate that I found on Github:
https://github.com/jneem/wu-manber
[1]: We probably want to rewrite or at least fork the above crate, and
add things like a three-byte wide scanner. Evaluating large
portions of nixpkgs can easily lead to more than 65k derivations
being scanned for.
Change-Id: I08926778e1e5d5a87fc9ac26e0437aed8bbd9eb0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8017
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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Upstream seems to be dead, so we're using https://github.com/tyrchen/
tonic-mock/pull/3 here.
According to https://github.com/tyrchen/tonic-mock/pull/1#issuecomment-
1241164173, we might not need this crate at all, but for now, it gets
the job done and is less code to write in the tests.
Change-Id: Ia77fa19b998a5bbabd0311cc714b85a2ee30f36a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7869
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This should make no difference in Nix builds, but allows running tests
locally again with `cargo test` for //tvix/eval.
Change-Id: I97d61840143d5c14db61d5862781bf635f9a28e7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7590
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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