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fatality based errors (#4448)

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* seed commit for fatality based errors

* fatality

* first draft of fatality

* cleanup

* differnt approach

* simplify

* first working version for enums, with documentation

* add split

* fix simple split test case

* extend README.md

* update fatality impl

* make tests passed

* apply fatality to first subsystem

* fatality fixes

* use fatality in a subsystem

* fix subsystemg

* fixup proc macro

* fix/test: log::*! do not execute when log handler is missing

* fix spelling

* rename Runtime2 to something sane

* allow nested split with `forward` annotations

* add free license

* enable and fixup all tests

* use external fatality

Makes this more reviewable.

* bump fatality dep

Avoid duplicate expander compilations.

* migrate availability distribution

* more fatality usage

* chore: bump fatality to 0.0.6

* fixup remaining subsystems

* chore: fmt

* make cargo spellcheck happy

* remove single instance of `#[fatal(false)]`

* last quality sweep

* fixup
This commit is contained in:
Bernhard Schuster
2022-02-25 18:25:26 +01:00
committed by GitHub
parent 85fa087405
commit d946582707
48 changed files with 425 additions and 659 deletions
Download Patch File Download Diff File Expand all files Collapse all files
polkadot/node/network/availability-distribution/src/lib.rs
+6 -6
View File
@@ -26,7 +26,7 @@ use polkadot_subsystem::{
/// Error and [`Result`] type for this subsystem.
mod error;
use error::{log_error, Fatal, Result};
use error::{log_error, FatalError, Result};
use polkadot_node_subsystem_util::runtime::RuntimeInfo;
@@ -95,7 +95,7 @@ impl AvailabilityDistributionSubsystem {
}
/// Start processing work as passed on from the Overseer.
async fn run<Context>(self, mut ctx: Context) -> std::result::Result<(), Fatal>
async fn run<Context>(self, mut ctx: Context) -> std::result::Result<(), FatalError>
where
Context: SubsystemContext<Message = AvailabilityDistributionMessage>,
Context: overseer::SubsystemContext<Message = AvailabilityDistributionMessage>,
@@ -111,13 +111,13 @@ impl AvailabilityDistributionSubsystem {
"pov-receiver",
run_pov_receiver(sender.clone(), pov_req_receiver, metrics.clone()).boxed(),
)
.map_err(Fatal::SpawnTask)?;
.map_err(FatalError::SpawnTask)?;
ctx.spawn(
"chunk-receiver",
run_chunk_receiver(sender, chunk_req_receiver, metrics.clone()).boxed(),
)
.map_err(Fatal::SpawnTask)?;
.map_err(FatalError::SpawnTask)?;
}
loop {
@@ -132,9 +132,9 @@ impl AvailabilityDistributionSubsystem {
// Handle task messages sending:
let message = match action {
Either::Left(subsystem_msg) =>
subsystem_msg.map_err(|e| Fatal::IncomingMessageChannel(e))?,
subsystem_msg.map_err(|e| FatalError::IncomingMessageChannel(e))?,
Either::Right(from_task) => {
let from_task = from_task.ok_or(Fatal::RequesterExhausted)?;
let from_task = from_task.ok_or(FatalError::RequesterExhausted)?;
ctx.send_message(from_task).await;
continue
},