142 lines
4 KiB
Rust
142 lines
4 KiB
Rust
use std::collections::{HashMap, HashSet};
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use time::OffsetDateTime;
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use crate::{
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config::ServerConfig,
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id,
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shared::{BenchMethod, Rfc3339Time, Run, UnfinishedRun, WorkerStatus},
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};
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#[derive(Clone)]
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pub struct WorkerInfo {
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pub secret: String,
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pub first_seen: OffsetDateTime,
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pub last_seen: OffsetDateTime,
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pub status: WorkerStatus,
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}
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impl WorkerInfo {
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pub fn new(secret: String, last_seen: OffsetDateTime, status: WorkerStatus) -> Self {
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Self {
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secret,
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first_seen: OffsetDateTime::now_utc(),
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last_seen,
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status,
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}
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}
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}
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pub struct Workers {
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config: &'static ServerConfig,
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workers: HashMap<String, WorkerInfo>,
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}
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impl Workers {
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pub fn new(config: &'static ServerConfig) -> Self {
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Self {
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config,
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workers: HashMap::new(),
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}
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}
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pub fn clean(&mut self) -> &mut Self {
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let now = OffsetDateTime::now_utc();
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self.workers
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.retain(|_, v| now <= v.last_seen + self.config.worker_timeout);
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self
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}
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pub fn verify_secret(&self, name: &str, secret: &str) -> bool {
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if let Some(worker) = self.workers.get(name) {
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worker.secret == secret
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} else {
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// The per-worker secret exists to prevent two workers from using
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// the same name at the same time (likely a misconfiguration). Since
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// we don't know a worker under this name yet, any secret is valid.
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true
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}
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}
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pub fn update(&mut self, name: String, info: WorkerInfo) {
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self.workers.insert(name, info);
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}
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pub fn find_and_reserve_run(
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&mut self,
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name: &str,
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queue: &[String],
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bench_method: BenchMethod,
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) -> Option<Run> {
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let covered = self
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.workers
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.values()
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.filter_map(|info| match &info.status {
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WorkerStatus::Idle | WorkerStatus::Busy => None,
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WorkerStatus::Working(run) => Some(&run.hash),
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})
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.collect::<HashSet<_>>();
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// Find work not already covered by another worker
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let hash = queue.iter().find(|hash| !covered.contains(hash))?.clone();
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let id = id::random_run_id();
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let run = Run {
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id,
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hash,
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bench_method,
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start: Rfc3339Time(OffsetDateTime::now_utc()),
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};
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// Reserve work so other workers don't choose it
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if let Some(info) = self.workers.get_mut(name) {
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info.status = WorkerStatus::Working(UnfinishedRun {
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id: run.id.clone(),
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hash: run.hash.clone(),
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bench_method: run.bench_method.to_string(),
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start: run.start,
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last_output: vec![],
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});
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}
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Some(run)
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}
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pub fn should_abort_work(&self, name: &str, queue: &[String]) -> bool {
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// A worker should abort work if...
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let Some(info) = self.workers.get(name) else {
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return false;
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};
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let WorkerStatus::Working(run) = &info.status else {
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return false;
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};
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// The commit isn't in the queue
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if !queue.contains(&run.hash) {
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return true;
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}
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// Another worker has been working on the same commit for longer
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let oldest_working_on_commit = self
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.workers
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.iter()
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.filter_map(|(name, info)| match &info.status {
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WorkerStatus::Working(u) if u.hash == run.hash => Some((name, u.start)),
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_ => None,
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})
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.max_by_key(|(_, start)| start.0)
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.map(|(name, _)| name as &str);
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if oldest_working_on_commit != Some(name) {
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return true;
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}
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false
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}
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pub fn get(&self, name: &str) -> Option<WorkerInfo> {
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self.workers.get(name).cloned()
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}
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pub fn get_all(&self) -> HashMap<String, WorkerInfo> {
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self.workers.clone()
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}
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}
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