Crate bevy_tasks
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bevy_tasks
A refreshingly simple task executor for bevy. :)
This is a simple threadpool with minimal dependencies. The main usecase is a scoped fork-join, i.e. spawning tasks from
a single thread and having that thread await the completion of those tasks. This is intended specifically for
bevy
as a lighter alternative to rayon
for this specific usecase. There are also utilities for
generating the tasks from a slice of data. This library is intended for games and makes no attempt to ensure fairness
or ordering of spawned tasks.
It is based on async-executor
, a lightweight executor that allows the end user to manage their own threads.
async-executor
is based on async-task, a core piece of async-std.
Dependencies
A very small dependency list is a key feature of this module
├── async-executor
│ ├── async-task
│ ├── concurrent-queue
│ │ └── cache-padded
│ └── fastrand
├── num_cpus
│ └── libc
├── parking
└── futures-lite
Modules
Structs
A newtype for a task pool for CPU-intensive work that may span across multiple frames
A newtype for a task pool for CPU-intensive work that must be completed to deliver the next frame
A counter that starts with an initial count n
. Once it is decremented n
times, it will be
“ready”. Call listen
to get a future that can be awaited.
A newtype for a task pool for IO-intensive work (i.e. tasks that spend very little time in a “woken” state)
A TaskPool
scope for running one or more non-'static
futures.
Wraps async_executor::Task
, a spawned future.
A thread pool for executing tasks. Tasks are futures that are being automatically driven by the pool on threads owned by the pool.
Used to create a TaskPool
Traits
ParallelIterator
closely emulates the std::iter::Iterator
interface. However, it uses bevy_task
to compute batches in parallel.
Provides functions for mapping read-only slices across a provided TaskPool
.
Provides functions for mapping mutable slices across a provided TaskPool
.
Functions
Returns the number of available CPUs of the current system.
Returns the number of physical cores of the current system.