refactor set command

src/commands/set.rs

@@ -1,24 +1,18 @@
-use std::{io::Cursor, time::Duration};
+use std::io::Cursor;
 
+use crate::{Result, connection::Connection, database::Database, errors::AppError};
 use bytes::{Buf as _, Bytes};
-use tokio::time::Instant;
-
-use crate::{
-    Result,
-    connection::Connection,
-    database::{Database, Value},
-    errors::AppError,
-};
 
 #[derive(Debug, Clone)]
 pub struct Set {
     key: String,
-    value: Value,
+    data: Box<[u8]>,
+    expiration: Option<u64>,
 }
 
 impl Set {
     pub async fn execute(self, db: &Database, connection: &mut Connection) -> Result<()> {
-        db.set(self.key, self.value).await?;
+        db.set(self.key, self.data, self.expiration).await?;
 
         connection.write(Bytes::from_static(&[1])).await?;
 
@@ -42,15 +36,16 @@ impl Set {
 
         let data = bytes.copy_to_bytes(value_length);
 
-        let expiration: Option<Instant> = match bytes.try_get_u8()? {
-            1 => Some(Instant::now() + Duration::from_secs(bytes.try_get_u64()?)),
+        let expiration: Option<u64> = match bytes.try_get_u8()? {
+            1 => Some(bytes.try_get_u64()?),
             0 => None,
             _ => return Err(AppError::UnexpectedCommandData),
         };
 
         Ok(Self {
             key,
-            value: Value::new(data, expiration),
+            data: (*data).into(),
+            expiration,
         })
     }
 }

src/database.rs

@@ -4,7 +4,7 @@ use std::{
     time::Duration,
 };
 
-use bytes::{BufMut, Bytes, BytesMut};
+use bytes::{BufMut, BytesMut};
 use byteyarn::Yarn;
 use tokio::{
     sync::{Mutex, Notify},
@@ -33,11 +33,8 @@ pub struct Value {
 }
 
 impl Value {
-    pub fn new(data: Bytes, expiration: Option<Instant>) -> Self {
-        Self {
-            data: data.into_iter().collect(),
-            expiration,
-        }
+    pub fn new(data: Box<[u8]>, expiration: Option<Instant>) -> Self {
+        Self { data, expiration }
     }
 
     pub fn from_string(data: String, expiration: Option<Instant>) -> Self {
@@ -69,13 +66,15 @@ impl Database {
         state.entries.get(key).map(|v| v.data.clone())
     }
 
-    pub async fn set(&self, key: String, value: Value) -> Result<()> {
+    pub async fn set(&self, key: String, data: Box<[u8]>, expiration: Option<u64>) -> Result<()> {
         let mut state = self.state.lock().await;
 
-        let expiration = value.expiration.clone();
+        let expiration = expiration.map(|seconds| Instant::now() + Duration::from_secs(seconds));
 
         let key = Yarn::from(key.clone());
 
+        let value = Value::new(data, expiration);
+
         let previous = state.entries.insert(key.clone(), value);
 
         let mut notify = false;