5.9 KiB
5.9 KiB
1.5.0
- Support serde (by a feature).
1.4.0
- Allow const-initializing ArcSwapOption (
const_empty
method).
1.3.2
- More helpful description of the
AsRaw
trait (isn't implemented for ownedArc
/Option<Arc>
).
1.3.1
- Cache doc improvements.
1.3.0
- Allow mapping of DynAccess.
- Fix some lints.
- Don't leave threads running in tests/doctests. It's a bad form and annoys miri.
1.2.0
- Miri and 32 bit tests in CI.
- Making the writers lock-free. Soft-removing the IndependentStrategy, as it is no longer needed (hidden and the same as the DafultStrategy).
1.1.0
- Fix soundness bug around access::Map. Technically a breaking change, but unlikely to bite and breaking seems to be the least bad option. #45.
1.0.0
- Remove Clone implementation. People are often confused by it and it is easy to emulate by hand in the rare case it is actually needed.
1.0.0-rc1
- Get rid of the
load_signal_safe
. It only complicates things and it is niche; signal-hook-registry has its own simplified version. - Avoid
from_ptr(as_ptr())
. Slight change inRefCnt::inc
which technically is API breaking change, but this one should not matter in practice. - Extend documentation about clone behaviour.
- Few more traits for Guard (
From<T: RefCnt>
,Default
). - Get rid of
rcu_unwap
, the whole concept is a trap. - Hide the whole gen lock thing.
- Introduce the
Strategy
, as a high level way to choose how exactly the locking happens.- Not possible to implement by downstream users just yet, or call them.
- The CaS is its own trait for flexibility.
- Adding the SimpleGenLock experimental strategy.
- Not part of stability guarantees.
0.4.7
- Rename the
unstable-weak
toweak
feature. The support is now available on 1.45 (currently in beta).
0.4.6
- Adjust to
Weak::as_ptr
from std (the weak pointer support, relying on unstable features). - Support running on miri (without some optimizations), so dependencies may run miri tests.
- Little optimization when waiting out the contention on write operations.
0.4.5
- Added
Guard::from_inner
.
0.4.4
- Top-level docs rewrite (less rambling, hopefully more readable).
0.4.3
- Fix the
Display
implementation onGuard
to correctly delegate to the underlyingDisplay
implementation.
0.4.2
- The Access functionality ‒ ability to pass a handle to subpart of held data to somewhere with the ability to update itself.
- Mapped cache can take
FnMut
as well asFn
.
0.4.1
- Mapped caches ‒ to allow giving access to parts of config only.
0.4.0
- Support for Weak pointers.
- RefCnt implemented for Rc.
- Breaking: Big API cleanups.
- Peek is gone.
- Terminology of getting the data unified to
load
. - There's only one kind of
Guard
now. - Guard derefs to the
Arc
/Option<Arc>
or similar. Cache
got moved to top level of the crate.- Several now unneeded semi-internal traits and trait methods got removed.
- Splitting benchmarks into a separate sub-crate.
- Minor documentation improvements.
0.3.11
- Prevention against UB due to dropping Guards and overflowing the guard counter (aborting instead, such problem is very degenerate anyway and wouldn't work in the first place).
0.3.10
- Tweak slot allocation to take smaller performance hit if some leases are held.
- Increase the number of lease slots per thread to 8.
- Added a cache for faster access by keeping an already loaded instance around.
0.3.9
- Fix Send/Sync for Guard and Lease (they were broken in the safe but uncomfortable direction ‒ not implementing them even if they could).
0.3.8
Lease<Option<_>>::unwrap()
,expect()
andinto_option()
for convenient use.
0.3.7
- Use the correct
#[deprecated]
syntax.
0.3.6
- Another locking store (
PrivateSharded
) to complement the global and private unsharded ones. - Comparison to other crates/approaches in the docs.
0.3.5
- Updates to documentation, made it hopefully easier to digest.
- Added the ability to separate gen-locks of one ArcSwapAny from others.
- Some speed improvements by inlining.
- Simplified the
lease
method internally, making it faster in optimistic cases.
0.3.4
- Another potentially weak ordering discovered (with even less practical effect than the previous).
0.3.3
- Increased potentially weak ordering (probably without any practical effect).
0.3.2
- Documentation link fix.
0.3.1
- Few convenience constructors.
- More tests (some randomized property testing).
0.3.0
compare_and_swap
no longer takes&Guard
as current as that is a sure way to create a deadlock.- Introduced
Lease
for temporary storage, which doesn't suffer from contention likeload
, but doesn't block writes likeGuard
. The downside is it slows down with number of held by the current thread. compare_and_swap
andrcu
uses leases.- Made the
ArcSwap
as small as the pointer itself, by making the shards/counters and generation ID global. This comes at a theoretical cost of more contention when different threads use different instances.
0.2.0
- Added an
ArcSwapOption
, which allows storing NULL values (as None) as well as a valid pointer. compare_and_swap
accepts borrowedArc
ascurrent
and doesn't consume one ref count.- Sharding internal counters, to improve performance on read-mostly contented scenarios.
- Providing
peek_signal_safe
as the only async signal safe method to use inside signal handlers. This removes the footgun with dropping theArc
returned fromload
inside a signal handler.
0.1.4
- The
peek
method to use theArc
inside without incrementing the reference count. - Some more (and hopefully better) benchmarks.
0.1.3
- Documentation fix (swap is not lock-free in current implementation).
0.1.2
- More freedom in the
rcu
andrcu_unwrap
return types.
0.1.1
rcu
support.compare_and_swap
support.- Added some primitive benchmarks.
0.1.0
- Initial implementation.