8 releases (4 breaking)
0.5.0 | May 29, 2023 |
---|---|
0.4.0 | Mar 22, 2023 |
0.4.0-RC1 | Jan 12, 2023 |
0.3.1 | Nov 10, 2022 |
0.1.2 | Oct 8, 2022 |
#863 in Algorithms
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lazy_async_promise: Simple primitives to manage tokio and egui
This crate currently only features simple primitives for getting computation time off the main thread using tokio:
LazyVecPromise
for a vector-backed storage which can be displayed while the task in progress.LazyValuePromise
for a single value future that can be updated during task-progress. My usage was for iterative algorithms where the intermediate results were interesting for display.
As the name suggests the two of them are lazily evaluated and nothing happens until they are polled for the first time.
For single values which are either available or not there's ImmediateValuePromise
which triggers computation immediately.
There's not in-calculation value read out, so either it's finished or not.
After heavy usage, I currently tend to use ImmediateValuePromise
wrapped in Option
for most lazy values, too.
Especially when no intermediate values are needed, it's technically sufficient and simpler.
Also, since 0.4.0 it's very convenient to use now, see the docs for examples.
Another example usage of this crate with a small egui/eframe blog-reader can be found here
Changelog:
0.5.0
- Fixed visibility issues with BoxSendError (thanks @aspcartman)
- Added progress tracked wrapper for immediate value promise (made lazyvaluepromise obsolete at least for me)
- Updated documentation
0.4.0:
- Added more flexible API to lazy and immediate structures, allowing to take the values
- Added DirectCacheAccess trait to make option-based usage of the immediate value promise more convenient
- Updated documentation
0.3.1:
- Add better api macros for lazy structures
0.3.0:
- Removed
into_boxed
trait in favor of supporting the regularFrom
trait which allows direct usage of the ?-Operator inImmediateValuePromise
- Added a progress indicator for the
LazyVecPromise
andLazyValuePromise
- Indication is done by
Progress
strong type which ensures values between 0.0 and 1.0 - Added CI for mac, windows and linux - had to give test-timings more leeway for mac os than on linux.
Dependencies
~2–3MB
~47K SLoC