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Fix clippy nightly again
See merge request tpo/core/arti!603
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Update all lint blocks
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This is another consequence of the `ring` license issue; see #493.
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Add "full" and "experimental" features to arti, arti-client, and below.
Closes #499
See merge request tpo/core/arti!584
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The "full" feature is a catch-all for all features, _except_:
* Those that select a particular implementation (like
tor-llcrypto/with-openssl) or build flag (like "static")
* Those that are experimental or unstable (like "experimental-api")
* Those that are testing-only.
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Use TaskSchedule to sleep in directory bootstrapping
Closes #497
See merge request tpo/core/arti!571
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Having this alias makes it easier to implement more complex
schedules, like those used in DirMgr.
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Unlike "cancel" and "fire", "suspend" and "resume" don't change any
pending timers or events: they just prevent execution of those
events for a while, and let them resume later on.
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This will make it much more convenient for code that only wants one of
these traits (or a subset of them). This is a good thing to support
because it will allow us to use a ZST in places that do not need an
actual async runtime handle (typically, the runtime handle is needed
only for spawn).
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From running add_warning, with manual picking of the right
hunks/lines.
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This was the result of:
maint/add_warning crates/*/src/{lib,main}.rs
and then manually curating the results.
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Fix minor issues found while publishing crates for Arti 0.4.0
See merge request tpo/core/arti!547
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Cargo publish (and probably nobody else!) builds this crate with no
features enabled. When you do that, you get a warning about an
unused `use std::io`.
Fixing that.
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Utilize cargo-sort: https://github.com/DevinR528/cargo-sort
Signed-off-by: Orhun Parmaksız <[email protected]>
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I followed the following procedure to make these changes:
* I used maint/changed_crates to find out which crates had changed
since 0.3.0.
* I used grep and maint/list_crates to sort those crates in
topological (dependency) order.
* I looked through semver_status to find which crates were listed as
having semver-relevant changes (new APIs and breaking changes).
* I scanned through the git logs of the crates with no
semver-relevant changes listed to confirm that, indeed, they had
no changes. For those crates, I incremented their patch-level
version _without_ changing the version that other crates depend on.
* I scanned through the git logs of the crates with no
semver-relevant changes listed to confirm that, indeed, they had
no obvious breaking changes.
* I treated all crates that depend on `arti` and/or `arti-client` as
having breaking changes.
* I identified crates that depend on crates that have changed, even
if they have not changed themselves, and identified them as having
a non-breaking change.
* For all of the crates, I used `cargo set-version -p $CRATE --bump
$STATUS` (where `STATUS` is `patch` or `minor`) to update the
versions, and the depended-upon versions.
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- arti#445 highlighted the lack of good documentation around Arti's
multiple runtime support, as well as it being difficult to determine
what runtime was actually in use.
- Improve the documentation to solve the first problem.
- To solve the second problem, make Runtime require Debug (which is
arguably a good idea anyway, since it makes them easier to embed in
things), and print out the current runtime's Debug information when
arti is invoked with `--version`.
- (It also prints out other Cargo features, too!)
fixes arti#445
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Previously, CompoundRuntime would use the default implementations of
SleepProvider::now() and ::wallclock(), instead of using its wrapped
SleepProvider. This mildly embarrassing omission has been rectified.
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* Except for safelog and fs-mistrust, which are new.
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This is an automated change made with a perl one-liner and verified
with grep -L and grep -l.
Some warnings are introduced with this change; they will be removed
in subsequent commits.
See arti#208 for older discussion on this issue.
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This change was made automatically with a perl one-liner, and
confirmed with `grep -L`.
The `rust-version` field itself was introduced in 1.56.0.
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There are no semantic changes here; only formatting. This is in
preparation for other changes (wrt MSRV and edition)
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Not all of these strictly need to be bumped to 0.2.0; many could go
to 0.1.1 instead. But since everything at the tor-rtcompat and
higher layers has had breaking API changes, it seems not so useful
to distinguish. (It seems unlikely that anybody at this stage is
depending on e.g. tor-protover but not arti-client.)
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Remove allow(clippy::disallowed_methods) lint flag.
See merge request tpo/core/arti!437
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The various background daemon tasks that `arti-client` used to spawn are
now handled inside their respective crates instead, with functions
provided to spawn them that return `TaskHandle`s.
This required introducing a new trait, `NetDirProvider`, which steals
some functionality from the `DirProvider` trait to enable `tor-circmgr`
to depend on it (`tor-circmgr` is a dependency of `tor-dirmgr`, so it
can't depend on `DirProvider` directly).
While we're at it, we also make some of the tasks wait for events from
the `NetDirProvider` instead of sleeping, slightly increasing
efficiency.
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Don't use SystemTime::now()
Closes #306
See merge request tpo/core/arti!365
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Addressing review comments: added some unit tests for the new scheduler
type, and made FireIn use an Instant instead (making it FireAt).
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This is a revised version of !397; it implements a scheduling system for
periodic tasks that can be externally controlled, and then uses the
external control aspect to implement a basic dormant mode (#90).
More technically, the scheduling system consists of a `Stream` that
periodic tasks are expected to embed in a `while` loop or similar, a
way for tasks themselves to choose how long to wait until the stream
next yields a result, and a handle to control this outside of the task.
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Currently, Arti doesn't need this. But once it does, it will be
way better to have a separate type for connected sockets, rather
than having to error-check every time somebody gives us a socket.
Part of #410
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Replace many manual trait impls with use of educe
See merge request tpo/core/arti!375
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The Default impl was the only call site for new()
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Disable clippy::clone_on_ref_ptr
See merge request tpo/core/arti!352
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This lint is IMO inherently ill-conceived.
I have looked for the reasons why this might be thought to be a good
idea and there were basically two (and they are sort of contradictory):
I. "Calling ‘.clone()` on an Rc, Arc, or Weak can obscure the fact
that only the pointer is being cloned, not the underlying data."
This is the wording from
https://rust-lang.github.io/rust-clippy/v0.0.212/#clone_on_ref_ptr
It is a bit terse; we are left to infer why it is a bad idea to
obscure this fact. It seems to me that if it is bad to obscure some
fact, that must be because the fact is a hazard. But why would it be
a hazard to not copy the underlying data ?
In other languages, faliing to copy the underlying data is a serious
correctness hazard. There is a whose class of bugs where things were
not copied, and then mutated and/or reused in multiple places in ways
that were not what the programmer intended. In my experience, this is
a very common bug when writing Python and Javascript. I'm told it's
common in golang too.
But in Rust this bug is much much harder to write. The data inside an
Arc is immutable. To have this bug you'd have use interior mutability
- ie mess around with Mutex or RefCell. That provides a good barrier
to these kind of accidents.
II. "The reason for writing Rc::clone and Arc::clone [is] to make it
clear that only the pointer is being cloned, as opposed to the
underlying data. The former is always fast, while the latter can
be very expensive depending on what is being cloned."
This is the reasoning found here
https://github.com/rust-lang/rust-clippy/issues/2048
This is saying that *not* using Arc::clone is hazardous.
Specifically, that a deep clone is a performance hazard.
But for this argument, the lint is precisely backwards. It's linting
the "good" case and asking for it to be written in a more explicit
way; while the supposedly bad case can be written conveniently.
Also, many objects (in our codebase, and in all the libraries we use)
that are Clone are in fact simply handles. They contain Arc(s) (or
similar) and are cheap to clone. Indeed, that is the usual case.
It does not make sense to distinguish in the syntax we use to clone
such a handle, whether the handle is a transparent Arc, or an opaque
struct containing one or more other handles.
Forcing Arc::clone to be written as such makes for code churn when a
type is changed from Arc<Something> to Something: Clone, or vice
versa.
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This makes using the `PreferredRuntime` the first-class option inside
`arti-client`, freeing users who don't want to think about runtimes from
having to do so.
`TorClient::create_unbootstrapped` and `builder` now automatically
use this runtime, leaving only `builder_custom` for users who wish to
manually specify a runtime.
This lets us clean up the docs a lot: mentions of using custom runtimes
are now relegated to nearer the end of the crate-level documentation,
and we mostly just link to `tor_rtcompat`'s docs to explain more there.
Instead, we take some more time to explain how you use the builder API
to create clients synchronously.
Other doc cleanups included getting rid of the explanation of `TorAddr`
in the main crate-level doc; this is already well-documented elsewhere,
and is something users should discover organically later.
fixes arti#326
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