1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77
use serde::{Deserialize, Serialize}; use std::{ error::Error, future::Future, panic::{RefUnwindSafe, UnwindSafe}, pin::Pin }; pub trait ProcessSend: Send + Serialize + for<'de> Deserialize<'de> + 'static {} impl<T: ?Sized> ProcessSend for T where T: Send + Serialize + for<'de> Deserialize<'de> + 'static {} type Result<T> = std::result::Result<T, Box<dyn Error + Send>>; pub trait ProcessPool: Send + Sync + RefUnwindSafe + UnwindSafe + Unpin { fn processes(&self) -> usize; fn spawn<F, T>(&self, work: F) -> Pin<Box<dyn Future<Output = Result<T>> + Send>> where F: FnOnce() -> T + ProcessSend, T: ProcessSend; } pub trait ThreadPool: Send + Sync + RefUnwindSafe + UnwindSafe + Unpin { fn threads(&self) -> usize; fn spawn<F, T>(&self, work: F) -> Pin<Box<dyn Future<Output = Result<T>> + Send>> where F: FnOnce() -> T + Send + 'static, T: Send + 'static; } pub trait LocalPool: Send + Sync + RefUnwindSafe + UnwindSafe + Unpin { fn spawn<F, T>(&self, work: F) -> Pin<Box<dyn Future<Output = Result<T>> + Send>> where F: FnOnce() -> T + 'static, T: Send + 'static; } impl<P: ?Sized> ProcessPool for &P where P: ProcessPool, { fn processes(&self) -> usize { (*self).processes() } fn spawn<F, T>(&self, work: F) -> Pin<Box<dyn Future<Output = Result<T>> + Send>> where F: FnOnce() -> T + ProcessSend, T: ProcessSend, { (*self).spawn(work) } } impl<P: ?Sized> ThreadPool for &P where P: ThreadPool, { fn threads(&self) -> usize { (*self).threads() } fn spawn<F, T>(&self, work: F) -> Pin<Box<dyn Future<Output = Result<T>> + Send>> where F: FnOnce() -> T + Send + 'static, T: Send + 'static, { (*self).spawn(work) } } impl<P: ?Sized> LocalPool for &P where P: LocalPool, { fn spawn<F, T>(&self, work: F) -> Pin<Box<dyn Future<Output = Result<T>> + Send>> where F: FnOnce() -> T + 'static, T: Send + 'static, { (*self).spawn(work) } }