Conversion implementations for awaited action db structs (TraceMachin…

…a#1243)

Implements a number of convenience implementations to simplify
compatibility with fred and conversions into redis keys/values.

nativelink-scheduler/BUILD.bazel

@@ -37,6 +37,7 @@ rust_library(
         "//nativelink-store",
         "//nativelink-util",
         "@crates//:async-lock",
+        "@crates//:bytes",
         "@crates//:futures",
         "@crates//:lru",
         "@crates//:parking_lot",

nativelink-scheduler/Cargo.toml

@@ -15,6 +15,7 @@ nativelink-metric = { path = "../nativelink-metric" }
 nativelink-store = { path = "../nativelink-store" }
 async-lock = { version = "3.4.0", features = ["std"], default-features = false }
 async-trait = "0.1.81"
+bytes = { version = "1.6.1", default-features = false }
 prost = { version = "0.13.1", default-features = false }
 uuid = { version = "1.8.0", default-features = false, features = ["v4", "serde"] }
 futures = { version = "0.3.30", default-features = false }

nativelink-scheduler/src/awaited_action_db/awaited_action.rs

@@ -15,6 +15,7 @@
 use std::sync::Arc;
 use std::time::{SystemTime, UNIX_EPOCH};
 
+use bytes::Bytes;
 use nativelink_error::{make_input_err, Error, ResultExt};
 use nativelink_metric::{
     MetricFieldData, MetricKind, MetricPublishKnownKindData, MetricsComponent,
@@ -149,12 +150,13 @@ impl AwaitedAction {
     }
 }
 
-impl TryInto<Vec<u8>> for AwaitedAction {
+impl TryInto<bytes::Bytes> for AwaitedAction {
     type Error = Error;
-    fn try_into(self) -> Result<Vec<u8>, Self::Error> {
-        serde_json::to_vec(&self)
+    fn try_into(self) -> Result<Bytes, Self::Error> {
+        serde_json::to_string(&self)
+            .map(Bytes::from)
             .map_err(|e| make_input_err!("{}", e.to_string()))
-            .err_tip(|| "In AwaitedAction::TryInto::<Vec<u8>>")
+            .err_tip(|| "In AwaitedAction::TryInto::Bytes")
     }
 }
 
@@ -213,6 +215,10 @@ impl AwaitedActionSortKey {
             .as_secs() as u32;
         Self::new(priority, timestamp)
     }
+
+    pub fn as_u64(&self) -> u64 {
+        self.0
+    }
 }
 
 // Ensure the size of the sort key is the same as a `u64`.

nativelink-scheduler/src/awaited_action_db/mod.rs

@@ -18,9 +18,10 @@ use std::sync::Arc;
 
 pub use awaited_action::{AwaitedAction, AwaitedActionSortKey};
 use futures::{Future, Stream};
-use nativelink_error::Error;
+use nativelink_error::{make_input_err, Error, ResultExt};
 use nativelink_metric::MetricsComponent;
-use nativelink_util::action_messages::{ActionInfo, OperationId};
+use nativelink_util::action_messages::{ActionInfo, ActionStage, OperationId};
+use serde::{Deserialize, Serialize};
 
 mod awaited_action;
 
@@ -33,8 +34,38 @@ pub enum SortedAwaitedActionState {
     Completed,
 }
 
+impl TryFrom<&ActionStage> for SortedAwaitedActionState {
+    type Error = Error;
+    fn try_from(value: &ActionStage) -> Result<Self, Error> {
+        match value {
+            ActionStage::CacheCheck => Ok(Self::CacheCheck),
+            ActionStage::Executing => Ok(Self::Executing),
+            ActionStage::Completed(_) => Ok(Self::Completed),
+            ActionStage::Queued => Ok(Self::Queued),
+            _ => Err(make_input_err!("Invalid State")),
+        }
+    }
+}
+
+impl TryFrom<ActionStage> for SortedAwaitedActionState {
+    type Error = Error;
+    fn try_from(value: ActionStage) -> Result<Self, Error> {
+        Self::try_from(&value)
+    }
+}
+
+impl std::fmt::Display for SortedAwaitedActionState {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            SortedAwaitedActionState::CacheCheck => write!(f, "CacheCheck"),
+            SortedAwaitedActionState::Queued => write!(f, "Queued"),
+            SortedAwaitedActionState::Executing => write!(f, "Executing"),
+            SortedAwaitedActionState::Completed => write!(f, "Completed"),
+        }
+    }
+}
 /// A struct pointing to an AwaitedAction that can be sorted.
-#[derive(Debug, Clone, MetricsComponent)]
+#[derive(Debug, Clone, Serialize, Deserialize, MetricsComponent)]
 pub struct SortedAwaitedAction {
     #[metric(help = "The sort key of the AwaitedAction")]
     pub sort_key: AwaitedActionSortKey,
@@ -64,6 +95,48 @@ impl Ord for SortedAwaitedAction {
     }
 }
 
+impl std::fmt::Display for SortedAwaitedAction {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        std::fmt::write(
+            f,
+            format_args!("{}-{}", self.sort_key.as_u64(), self.operation_id),
+        )
+    }
+}
+
+impl From<&AwaitedAction> for SortedAwaitedAction {
+    fn from(value: &AwaitedAction) -> Self {
+        Self {
+            operation_id: value.operation_id().clone(),
+            sort_key: value.sort_key(),
+        }
+    }
+}
+
+impl From<AwaitedAction> for SortedAwaitedAction {
+    fn from(value: AwaitedAction) -> Self {
+        Self::from(&value)
+    }
+}
+
+impl TryInto<Vec<u8>> for SortedAwaitedAction {
+    type Error = Error;
+    fn try_into(self) -> Result<Vec<u8>, Self::Error> {
+        serde_json::to_vec(&self)
+            .map_err(|e| make_input_err!("{}", e.to_string()))
+            .err_tip(|| "In SortedAwaitedAction::TryInto::<Vec<u8>>")
+    }
+}
+
+impl TryFrom<&[u8]> for SortedAwaitedAction {
+    type Error = Error;
+    fn try_from(value: &[u8]) -> Result<Self, Self::Error> {
+        serde_json::from_slice(value)
+            .map_err(|e| make_input_err!("{}", e.to_string()))
+            .err_tip(|| "In AwaitedAction::TryFrom::&[u8]")
+    }
+}
+
 /// Subscriber that can be used to monitor when AwaitedActions change.
 pub trait AwaitedActionSubscriber: Send + Sync + Sized + 'static {
     /// Wait for AwaitedAction to change.