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authorDario Nieuwenhuis <[email protected]>2022-08-17 23:40:16 +0200
committerDario Nieuwenhuis <[email protected]>2022-08-18 01:22:30 +0200
commit5daa173ce4b153a532b4daa9e94c7a248231f25b (patch)
tree2ef0b4d6f9b1c02dac2589e7b57982c20cbc0e66 /embassy-executor/src/executor/mod.rs
parent1c5b54a4823d596db730eb476c3ab78110557214 (diff)
Split embassy-time from embassy-executor.
Diffstat (limited to 'embassy-executor/src/executor/mod.rs')
-rw-r--r--embassy-executor/src/executor/mod.rs44
1 files changed, 0 insertions, 44 deletions
diff --git a/embassy-executor/src/executor/mod.rs b/embassy-executor/src/executor/mod.rs
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1//! Async task executor.
2//!
3//! This module provides an async/await executor designed for embedded usage.
4//!
5//! - No `alloc`, no heap needed. Task futures are statically allocated.
6//! - No "fixed capacity" data structures, executor works with 1 or 1000 tasks without needing config/tuning.
7//! - Integrated timer queue: sleeping is easy, just do `Timer::after(Duration::from_secs(1)).await;`.
8//! - No busy-loop polling: CPU sleeps when there's no work to do, using interrupts or `WFE/SEV`.
9//! - Efficient polling: a wake will only poll the woken task, not all of them.
10//! - Fair: a task can't monopolize CPU time even if it's constantly being woken. All other tasks get a chance to run before a given task gets polled for the second time.
11//! - Creating multiple executor instances is supported, to run tasks with multiple priority levels. This allows higher-priority tasks to preempt lower-priority tasks.
12
13cfg_if::cfg_if! {
14 if #[cfg(cortex_m)] {
15 #[path="arch/cortex_m.rs"]
16 mod arch;
17 pub use arch::*;
18 }
19 else if #[cfg(target_arch="riscv32")] {
20 #[path="arch/riscv32.rs"]
21 mod arch;
22 pub use arch::*;
23 }
24 else if #[cfg(all(target_arch="xtensa", feature = "nightly"))] {
25 #[path="arch/xtensa.rs"]
26 mod arch;
27 pub use arch::*;
28 }
29 else if #[cfg(feature="wasm")] {
30 #[path="arch/wasm.rs"]
31 mod arch;
32 pub use arch::*;
33 }
34 else if #[cfg(feature="std")] {
35 #[path="arch/std.rs"]
36 mod arch;
37 pub use arch::*;
38 }
39}
40
41pub mod raw;
42
43mod spawner;
44pub use spawner::*;