From 7d1426b60dc86684ba948ceb3b29f84fac175e07 Mon Sep 17 00:00:00 2001 From: b1ek Date: Fri, 11 Aug 2023 21:44:53 +1000 Subject: [PATCH] basic future-based solver functionality --- .vscode/settings.json | 4 + Cargo.lock | 354 +++++++++++++++++++++ Cargo.toml | 4 + examples/futures/Cargo.lock | 593 +++++++++++++++++++++++++++++++++++ examples/futures/Cargo.toml | 17 + examples/futures/src/main.rs | 10 + src/lib.rs | 2 +- src/solver.rs | 72 +++++ 8 files changed, 1055 insertions(+), 1 deletion(-) create mode 100644 .vscode/settings.json create mode 100644 examples/futures/Cargo.lock create mode 100644 examples/futures/Cargo.toml create mode 100644 examples/futures/src/main.rs diff --git a/.vscode/settings.json b/.vscode/settings.json new file mode 100644 index 0000000..37ed364 --- /dev/null +++ b/.vscode/settings.json @@ -0,0 +1,4 @@ +{ + "rust-analyzer.cargo.features": [ + ] +} \ No newline at end of file diff --git a/Cargo.lock b/Cargo.lock index d446d06..26b56a2 100644 --- 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index 0000000..4a8327e --- /dev/null +++ b/examples/futures/Cargo.toml @@ -0,0 +1,17 @@ +[package] +name = "powlib-futures-example" +version = "0.1.0" +edition = "2021" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +num_cpus = "1.16.0" +powlib = { path = '../..', features = [ "tokio_futures" ] } +tokio = { version = "1.26.0", features = [ "full" ]} + +[profile.release] +lto = "fat" +codegen-units = 1 +opt-level = "z" +strip = true diff --git a/examples/futures/src/main.rs b/examples/futures/src/main.rs new file mode 100644 index 0000000..0f96342 --- /dev/null +++ b/examples/futures/src/main.rs @@ -0,0 +1,10 @@ +use powlib::{gen::{POWChallenge, POWRange}, solver::POWSolver}; + + +#[tokio::main] +async fn main() { + let challenge = POWChallenge::make(POWRange::new(0, 256)); + let mut solver = POWSolver::new(challenge); + let res = solver.solve_futures((num_cpus::get() as u8) * 2).await.unwrap(); + println!("{}", res); +} diff --git a/src/lib.rs b/src/lib.rs index ad59e61..1816243 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,4 +1,4 @@ pub mod gen; pub mod hash; pub mod num; -pub mod solver; \ No newline at end of file +pub mod solver; diff --git a/src/solver.rs b/src/solver.rs index 9981f19..1b5b9e8 100644 --- a/src/solver.rs +++ b/src/solver.rs @@ -2,6 +2,9 @@ use std::{sync::{mpsc, Arc, atomic::{AtomicBool, Ordering}}, thread::{self, Join use crate::{gen::POWChallenge, num::Num}; +#[cfg(feature = "tokio_futures")] +use {tokio, tokio::task}; + #[derive(Debug, Clone)] pub struct POWSolver { challenge: POWChallenge, @@ -149,6 +152,75 @@ impl POWSolver { result } + #[cfg(feature = "tokio_futures")] + pub async fn chunk_future(self: &POWSolver, start: u128, end: u128) -> Option { + for i in start..end { + if self.challenge.check(Num::from(i)) { + return Some(i); + } + } + None + } + + #[cfg(feature = "tokio_futures")] + pub async fn solve_futures(self: &mut POWSolver, futures: u8) -> Result { + use tokio::task::JoinSet; + + + let mut start: u128 = 0; + let size = self.chunksize(futures); + let range = self.challenge.range.max - self.challenge.range.min; + + let stop = Arc::new(AtomicBool::new(false)); + + let mut tasks: JoinSet> = JoinSet::new(); + for _ in 0..futures { + let mut end = start + size; + let stop = stop.clone(); + let solver = self.clone(); + + if end > range { + end -= end % range; + } + + tasks.spawn(async move { + for i in 0..end { + if stop.load(Ordering::Relaxed) { + break; + } + if solver.challenge.check(Num::from(i)) { + stop.store(true, Ordering::Relaxed); + return Some(i); + } + } + None + }); + + start = start + size + 1; + } + + for _ in 0..futures { + let result = tasks.join_next().await; + if result.is_none() { + return Err("Join set is empty".to_string()); + } + let result = result.unwrap(); + + if result.is_err() { + return Err(format!("JoinError: {}", result.unwrap_err())); + } + + let result = result.unwrap(); + + if result.is_some() { + self.result = Some(result.unwrap()); + return Ok(self.result.unwrap()); + } + } + Err("Failed to find".to_string()) + + } + pub fn new(challenge: POWChallenge) -> POWSolver { POWSolver { challenge, result: None } }