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job: Make it possible to have a JobHandle not connected to a JobMonitor

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This commit is contained in:
Zhaofeng Li 2022-01-22 17:50:53 -08:00
parent 55ce6d078e
commit 9fbb6b133b
1 changed files with 21 additions and 4 deletions
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25
src/job.rs
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@ -109,7 +109,7 @@ pub struct JobHandleInner {
job_id: JobId, job_id: JobId,
/// Handle to the mpsc channel. /// Handle to the mpsc channel.
sender: Sender, sender: Option<Sender>,
} }
/// A handle to the meta job. /// A handle to the meta job.
@ -482,6 +482,14 @@ impl JobState {
} }
impl JobHandleInner { impl JobHandleInner {
/// Creates a JobHandle that isn't connected to a JobMonitor.
pub fn null() -> Self {
Self {
job_id: JobId::new(),
sender: None,
}
}
/// Creates a new job with a distinct ID. /// Creates a new job with a distinct ID.
/// ///
/// This sends out a Creation message with the metadata. /// This sends out a Creation message with the metadata.
@ -594,8 +602,12 @@ impl JobHandleInner {
let event = Event::new(self.job_id, payload); let event = Event::new(self.job_id, payload);
self.sender.send(event) if let Some(sender) = &self.sender {
.map_err(|e| ColmenaError::unknown(Box::new(e)))?; sender.send(event)
.map_err(|e| ColmenaError::unknown(Box::new(e)))?;
} else {
log::debug!("Sending event: {:?}", event);
}
Ok(()) Ok(())
} }
@ -609,7 +621,7 @@ impl MetaJobHandle {
{ {
let normal_handle = Arc::new(JobHandleInner { let normal_handle = Arc::new(JobHandleInner {
job_id: self.job_id, job_id: self.job_id,
sender: self.sender.clone(), sender: Some(self.sender.clone()),
}); });
match f(normal_handle).await { match f(normal_handle).await {
@ -787,6 +799,11 @@ impl Display for JobStats {
} }
} }
/// Returns a JobHandle that is not connected to a JobMonitor.
pub fn null_job_handle() -> JobHandle {
Arc::new(JobHandleInner::null())
}
/// Returns a textual description of a list of nodes. /// Returns a textual description of a list of nodes.
/// ///
/// Example: "alpha, beta, and 5 other nodes" /// Example: "alpha, beta, and 5 other nodes"