basic future-based solver functionality

This commit is contained in:
b1ek 2023-08-11 21:44:53 +10:00
parent 409f9f186e
commit 7d1426b60d
Signed by: blek
GPG Key ID: 14546221E3595D0C
8 changed files with 1055 additions and 1 deletions

4
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View File

@ -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

View File

@ -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);
}

View File

@ -1,4 +1,4 @@
pub mod gen;
pub mod hash;
pub mod num;
pub mod solver;
pub mod solver;

View File

@ -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<u128> {
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<u128, String> {
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<Option<u128>> = 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 }
}