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use thiserror::Error;
use crate::append::AppendError;
use crate::error::AcceptError;
use crate::error::AffirmSnapshotError;
use crate::error::CommitError;
use crate::error::InstallSnapshotError;
use crate::error::PrepareError;
use crate::error::ReadStaleError;
use crate::invocation::Invocation;
use crate::invocation::RoundNumOf;
use crate::RoundNum;
pub use crate::error::ShutDown;
impl ShutDown {
pub(crate) fn rule_out<T>(result: Result<T, ShutDown>) -> T {
result.unwrap()
}
}
impl<I: Invocation> From<ShutDown> for AppendError<I> {
fn from(_: ShutDown) -> Self {
AppendError::ShutDown
}
}
impl From<ShutDown> for ReadStaleError {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl<I: Invocation> From<ShutDown> for PrepareError<I> {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl<I: Invocation> From<ShutDown> for AcceptError<I> {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl<I: Invocation> From<ShutDown> for CommitError<I> {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl From<ShutDown> for AcquireRoundNumError {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl<R: RoundNum> From<ShutDown> for ClusterError<R> {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl From<ShutDown> for AffirmSnapshotError {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
impl From<ShutDown> for InstallSnapshotError {
fn from(_: ShutDown) -> Self {
Self::ShutDown
}
}
#[derive(Debug, Error)]
pub enum AcquireRoundNumError {
#[error("the round has already converged")]
Converged,
#[error("node is disoriented")]
Disoriented,
#[error("node is shut down")]
ShutDown,
}
impl<I: Invocation> From<AcquireRoundNumError> for AppendError<I> {
fn from(e: AcquireRoundNumError) -> Self {
match e {
AcquireRoundNumError::Converged => AppendError::Converged { caught_up: true },
AcquireRoundNumError::Disoriented => AppendError::Disoriented,
AcquireRoundNumError::ShutDown => AppendError::ShutDown,
}
}
}
#[derive(Debug, Error)]
pub enum ClusterError<R: RoundNum> {
#[error("the round has already converged")]
Converged(R),
#[error("node is disoriented")]
Disoriented,
#[error("node is shut down")]
ShutDown,
}
impl<I: Invocation> From<ClusterError<RoundNumOf<I>>> for AppendError<I> {
fn from(e: ClusterError<RoundNumOf<I>>) -> Self {
match e {
ClusterError::Disoriented => AppendError::Disoriented,
ClusterError::Converged(_) => AppendError::Converged { caught_up: true },
ClusterError::ShutDown => AppendError::ShutDown,
}
}
}