145 lines
4.1 KiB
Rust
145 lines
4.1 KiB
Rust
use std::sync::{Arc, Mutex};
|
|
|
|
use reqwest::Client;
|
|
use tempfile::TempDir;
|
|
use tokio::sync::Mutex as AsyncMutex;
|
|
use tracing::{debug, warn};
|
|
|
|
use crate::{
|
|
config::{Config, WorkerServerConfig},
|
|
server::web::paths::{
|
|
PathApiWorkerBenchRepoByHashTreeTarGz, PathApiWorkerRepoByHashTreeTarGz,
|
|
PathApiWorkerStatus,
|
|
},
|
|
shared::{FinishedRun, ServerResponse, WorkerRequest, WorkerStatus},
|
|
somehow,
|
|
worker::tree,
|
|
};
|
|
|
|
use super::run::RunInProgress;
|
|
|
|
#[derive(Clone)]
|
|
pub struct Server {
|
|
pub name: String,
|
|
pub config: &'static Config,
|
|
pub server_config: &'static WorkerServerConfig,
|
|
pub secret: String,
|
|
|
|
pub client: Client,
|
|
pub current_run: Arc<Mutex<Option<RunInProgress>>>,
|
|
|
|
/// You must hold this lock while sending status updates to the server and
|
|
/// while processing the response.
|
|
///
|
|
/// This lock prevents the following race condition that would lead to
|
|
/// multiple workers receiving runs for the same commit in unlucky
|
|
/// circumstances:
|
|
///
|
|
/// 1. The main task requests a run
|
|
/// 2. The ping task sends a status update where the worker is idle
|
|
/// 3. The server receives 1, reserves a run and replies
|
|
/// 4. The server receives 2 and clears the reservatio
|
|
/// 5. Another worker requests a run before this worker's next ping
|
|
pub status_lock: Arc<AsyncMutex<()>>,
|
|
}
|
|
|
|
impl Server {
|
|
/// **Important:** Before using this function, read the documentation of
|
|
/// [`Self::status_lock`]!
|
|
pub async fn post_status(
|
|
&self,
|
|
request_run: bool,
|
|
submit_run: Option<FinishedRun>,
|
|
) -> somehow::Result<ServerResponse> {
|
|
let url = format!("{}{}", self.server_config.url, PathApiWorkerStatus {});
|
|
|
|
let status = match &*self.current_run.lock().unwrap() {
|
|
Some(run) if run.is_for_server(&self.name) => {
|
|
WorkerStatus::Working(run.as_unfinished_run())
|
|
}
|
|
Some(_) => WorkerStatus::Busy,
|
|
None => WorkerStatus::Idle,
|
|
};
|
|
|
|
let request = WorkerRequest {
|
|
info: None,
|
|
secret: self.secret.clone(),
|
|
status,
|
|
request_run,
|
|
submit_run,
|
|
};
|
|
|
|
let response = self
|
|
.client
|
|
.post(url)
|
|
.basic_auth(&self.config.worker_name, Some(&self.server_config.token))
|
|
.json(&request)
|
|
.send()
|
|
.await?
|
|
.json::<ServerResponse>()
|
|
.await?;
|
|
|
|
Ok(response)
|
|
}
|
|
|
|
pub async fn download_repo(&self, hash: &str) -> somehow::Result<TempDir> {
|
|
let url = format!(
|
|
"{}{}",
|
|
self.server_config.url,
|
|
PathApiWorkerRepoByHashTreeTarGz {
|
|
hash: hash.to_string()
|
|
},
|
|
);
|
|
|
|
let response = self
|
|
.client
|
|
.get(url)
|
|
.basic_auth(&self.config.worker_name, Some(&self.server_config.token))
|
|
.send()
|
|
.await?;
|
|
|
|
tree::download(response).await
|
|
}
|
|
|
|
pub async fn download_bench_repo(&self, hash: &str) -> somehow::Result<TempDir> {
|
|
let url = format!(
|
|
"{}{}",
|
|
self.server_config.url,
|
|
PathApiWorkerBenchRepoByHashTreeTarGz {
|
|
hash: hash.to_string()
|
|
},
|
|
);
|
|
|
|
let response = self
|
|
.client
|
|
.get(url)
|
|
.basic_auth(&self.config.worker_name, Some(&self.server_config.token))
|
|
.send()
|
|
.await?;
|
|
|
|
tree::download(response).await
|
|
}
|
|
|
|
async fn ping(&self) -> somehow::Result<()> {
|
|
debug!("Pinging server");
|
|
let guard = self.status_lock.lock().await;
|
|
|
|
let response = self.post_status(false, None).await?;
|
|
|
|
// TODO Signal that run should be aborted
|
|
|
|
drop(guard);
|
|
Ok(())
|
|
}
|
|
|
|
pub async fn ping_periodically(self) {
|
|
loop {
|
|
match self.ping().await {
|
|
Ok(()) => {}
|
|
Err(e) => warn!("Error talking to server:\n{e:?}"),
|
|
}
|
|
|
|
tokio::time::sleep(self.config.worker_ping_delay).await;
|
|
}
|
|
}
|
|
}
|