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//! The `loda-rust mine` subcommand, runs the miner daemon process.
use crate::config::{Config, NumberOfWorkers, ValidateConfig, ValidateConfigTask};
use crate::mine::{analytics_worker, cronjob_worker, miner_worker, postmine_worker, upload_worker};
use crate::mine::{MetricsWorker, PreventFlooding};
use crate::mine::{coordinator_worker, CoordinatorWorkerMessage};
use bastion::prelude::*;
use anyhow::Context;
use std::fs;
use std::sync::{Arc, Mutex};
use std::thread;
use std::time::Duration;
#[derive(Debug)]
pub enum SubcommandMineMetricsMode {
NoMetricsServer,
RunMetricsServer,
}
pub struct SubcommandMine {
metrics_mode: SubcommandMineMetricsMode,
number_of_workers: usize,
config: Config,
prevent_flooding: Arc<Mutex<PreventFlooding>>,
}
impl SubcommandMine {
pub async fn run(
metrics_mode: SubcommandMineMetricsMode
) -> anyhow::Result<()> {
Bastion::init();
let instance = SubcommandMine::new(metrics_mode)?;
instance.prepare_mineevent_dir()?;
instance.print_info();
instance.start_metrics_worker()?;
instance.start_coordinator_worker()?;
instance.start_upload_worker()?;
instance.start_postmine_worker()?;
instance.start_miner_workers()?;
instance.start_analytics_worker()?;
instance.start_cronjob_worker()?;
Bastion::start();
instance.run_launch_procedure()?;
Bastion::block_until_stopped();
return Ok(());
}
/// Regenerate analytics if it has expired.
///
/// Load analytics data and pass it on to the `miner_worker` instances.
///
/// Start mining.
fn run_launch_procedure(&self) -> anyhow::Result<()> {
// Wait for `Bastion::start()` to finish launching all the threads.
// I don't like `sleep()`. It's fragile.
// If I don't `sleep()`, then the workers hasn't been launched yet, causing this error on launch:
// Error: Unable to send RunLaunchProcedure to coordinator_worker_distributor. error: EmptyRecipient
thread::sleep(Duration::from_millis(100));
let distributor = Distributor::named("coordinator_worker");
let tell_result = distributor.tell_everyone(CoordinatorWorkerMessage::RunLaunchProcedure);
if let Err(error) = tell_result {
return Err(anyhow::anyhow!("Unable to send RunLaunchProcedure to coordinator_worker_distributor. error: {:?}", error));
}
Ok(())
}
fn new(
metrics_mode: SubcommandMineMetricsMode
) -> anyhow::Result<Self> {
let config = Config::load();
config.validate_config_for_task(ValidateConfigTask::OeisMine)?;
let number_of_workers: usize = config.resolve_number_of_miner_workers();
Ok(Self {
metrics_mode: metrics_mode,
number_of_workers: number_of_workers,
config: config,
prevent_flooding: Arc::new(Mutex::new(PreventFlooding::new())),
})
}
/// Create the `~/.loda-rust/mine-event` dir if needed
fn prepare_mineevent_dir(&self) -> anyhow::Result<()> {
let path = self.config.mine_event_dir();
if !path.is_dir() {
fs::create_dir(&path)
.with_context(|| format!("Unable to create mine-event dir: {:?}", &path))?;
}
assert!(path.is_dir());
Ok(())
}
fn print_info(&self) {
// Ascii art generated using:
// https://patorjk.com/software/taag/#p=display&f=ANSI%20Shadow&t=LODA-RUST
// Font="ANSI Shadow"
let banner = r#"
██╗ ██████╗ ██████╗ █████╗ ██████╗ ██╗ ██╗███████╗████████╗
██║ ██╔═══██╗██╔══██╗██╔══██╗ ██╔══██╗██║ ██║██╔════╝╚══██╔══╝
██║ ██║ ██║██║ ██║███████║█████╗██████╔╝██║ ██║███████╗ ██║
██║ ██║ ██║██║ ██║██╔══██║╚════╝██╔══██╗██║ ██║╚════██║ ██║
███████╗╚██████╔╝██████╔╝██║ ██║ ██║ ██║╚██████╔╝███████║ ██║
╚══════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚══════╝ ╚═╝"#;
println!("{}", banner);
const VERSION: &str = env!("CARGO_PKG_VERSION");
let build_mode: &str;
if cfg!(debug_assertions) {
build_mode = "DEBUG (terrible performance!)";
} else {
build_mode = "RELEASE";
}
println!("LODA-RUST version: {}, build: {}\n", VERSION, build_mode);
println!("metrics mode: {:?}", self.metrics_mode);
println!("number of workers: {}", self.number_of_workers);
println!("Press CTRL-C to stop the miner.\n\n");
}
fn start_metrics_worker(&self) -> anyhow::Result<()> {
match self.metrics_mode {
SubcommandMineMetricsMode::NoMetricsServer => {
MetricsWorker::start_without_server()?;
},
SubcommandMineMetricsMode::RunMetricsServer => {
let listen_on_port: u16 = self.config.miner_metrics_listen_port();
MetricsWorker::start_with_server(listen_on_port, self.number_of_workers as u64)?;
}
};
Ok(())
}
fn start_coordinator_worker(&self) -> anyhow::Result<()> {
Bastion::supervisor(|supervisor| {
supervisor.children(|children| {
children
.with_redundancy(1)
.with_distributor(Distributor::named("coordinator_worker"))
.with_exec(move |ctx: BastionContext| {
async move {
coordinator_worker(
ctx,
).await
}
})
})
})
.map_err(|e| anyhow::anyhow!("couldn't start coordinator_worker. error: {:?}", e))?;
Ok(())
}
fn start_upload_worker(&self) -> anyhow::Result<()> {
let miner_program_upload_endpoint: String = self.config.miner_program_upload_endpoint().clone();
Bastion::supervisor(|supervisor| {
supervisor.children(|children| {
children
.with_redundancy(1)
.with_distributor(Distributor::named("upload_worker"))
.with_exec(move |ctx: BastionContext| {
let miner_program_upload_endpoint_clone = miner_program_upload_endpoint.clone();
async move {
upload_worker(
ctx,
miner_program_upload_endpoint_clone,
).await
}
})
})
})
.map_err(|e| anyhow::anyhow!("couldn't start upload_worker. error: {:?}", e))?;
Ok(())
}
fn start_postmine_worker(&self) -> anyhow::Result<()> {
let config_original: Config = self.config.clone();
Bastion::supervisor(|supervisor| {
supervisor.children(|children| {
children
.with_redundancy(1)
.with_distributor(Distributor::named("postmine_worker"))
.with_exec(move |ctx: BastionContext| {
let config_clone = config_original.clone();
async move {
postmine_worker(
ctx,
config_clone,
).await
}
})
})
})
.map_err(|e| anyhow::anyhow!("couldn't start postmine_worker. error: {:?}", e))?;
Ok(())
}
fn start_miner_workers(&self) -> anyhow::Result<()> {
let config_original: Config = self.config.clone();
let prevent_flooding = self.prevent_flooding.clone();
Bastion::supervisor(|supervisor| {
supervisor.children(|children| {
children
.with_redundancy(self.number_of_workers)
.with_distributor(Distributor::named("miner_worker"))
.with_exec(move |ctx: BastionContext| {
let prevent_flooding_clone = prevent_flooding.clone();
let config_clone = config_original.clone();
async move {
miner_worker(
ctx,
prevent_flooding_clone,
config_clone,
).await
}
})
})
})
.map_err(|e| anyhow::anyhow!("couldn't start miner_workers. error: {:?}", e))?;
Ok(())
}
fn start_analytics_worker(&self) -> anyhow::Result<()> {
let config_original: Config = self.config.clone();
let prevent_flooding = self.prevent_flooding.clone();
Bastion::supervisor(|supervisor| {
supervisor.children(|children| {
children
.with_redundancy(1)
.with_distributor(Distributor::named("analytics_worker"))
.with_exec(move |ctx: BastionContext| {
let config_clone: Config = config_original.clone();
let prevent_flooding_clone = prevent_flooding.clone();
async move {
analytics_worker(
ctx,
config_clone,
prevent_flooding_clone,
).await
}
})
})
})
.map_err(|e| anyhow::anyhow!("couldn't start analytics_worker. error: {:?}", e))?;
Ok(())
}
fn start_cronjob_worker(&self) -> anyhow::Result<()> {
Bastion::supervisor(|supervisor| {
supervisor.children(|children| {
children
.with_redundancy(1)
.with_distributor(Distributor::named("cronjob_worker"))
.with_exec(move |ctx: BastionContext| {
async move {
cronjob_worker(
ctx,
).await
}
})
})
})
.map_err(|e| anyhow::anyhow!("couldn't start cronjob_worker. error: {:?}", e))?;
Ok(())
}
}
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