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use chrono::NaiveDate;
use gradecoin::schema::NakedBlock;
use serde_json;
use std::sync::{Arc, Mutex};
use std::thread;
use std::time::Instant;
use blake2::{Blake2s, Digest};
const N: usize = 4;
pub fn main() {
let counter = Arc::new(Mutex::new(0));
let now = Instant::now();
let mut threads = Vec::with_capacity(N);
(0..N).for_each(|_| {
let counter = Arc::clone(&counter);
threads.push(thread::spawn(move || {
let mut b = NakedBlock {
transaction_list: vec!["fingerprint_of_some_guy".to_owned()],
nonce: 0,
timestamp: NaiveDate::from_ymd(2021, 04, 13).and_hms(23, 38, 00),
};
let start: u32;
let end: u32;
{
let mut num = counter.lock().unwrap();
println!("Starting with 2 over {}", num);
start = 0 + (1073741824 * *num);
end = 1073741820 * (*num + 1);
*num += 1;
}
println!("here {} - {}", start, end);
for nonce in start..end {
b.nonce = nonce;
let j = serde_json::to_vec(&b).unwrap();
let result = Blake2s::digest(&j);
let first_six = result[0] as i32 + result[1] as i32 + (result[2]) as i32;
if first_six == 0 {
println!("{} - {:x}\n{:?}", nonce, result, b);
break;
}
}
}));
});
threads.into_iter().for_each(|thread| {
thread
.join()
.expect("The thread creating or execution failed !")
});
println!("it took {} seconds", now.elapsed().as_secs());
}
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