review fixes

binaries/cuprated/src/rpc/handlers/helper.rs

@@ -16,6 +16,7 @@ use cuprate_rpc_types::{
     misc::BlockHeader,
 };
 use cuprate_types::HardFork;
+use monero_serai::transaction::Timelock;
 
 use crate::rpc::{
     service::{blockchain, blockchain_context},
@@ -170,6 +171,23 @@ pub(super) async fn top_height(state: &mut CupratedRpcHandler) -> Result<(u64, [
     Ok((height, hash))
 }
 
+/// Returns `true` if the `timelock` is unlocked.
+pub(super) async fn timelock_is_unlocked(
+    state: &mut CupratedRpcHandler,
+    timelock: Timelock,
+) -> Result<bool, Error> {
+    let unlocked = match timelock {
+        Timelock::None => true,
+        Timelock::Block(height) => {
+            let (top_height, _) = top_height(state).await?;
+            top_height > usize_to_u64(height)
+        }
+        Timelock::Time(timestamp) => cuprate_helper::time::current_unix_timestamp() > timestamp,
+    };
+
+    Ok(unlocked)
+}
+
 /// TODO: impl bootstrap
 pub const fn response_base(is_bootstrap: bool) -> ResponseBase {
     if is_bootstrap {

binaries/cuprated/src/rpc/handlers/json_rpc.rs

@@ -467,8 +467,10 @@ async fn get_info(
         blockchain::alt_chain_count(&mut state.blockchain_read).await?
     };
 
-    let block_weight_limit = usize_to_u64(c.effective_median_weight);
-    let block_weight_median = usize_to_u64(c.median_weight_for_block_reward);
+    // TODO: these values are incorrectly calculated in `monerod` and copied in `cuprated`
+    // <https://github.com/Cuprate/cuprate/pull/355#discussion_r1906273007>
+    let block_weight_limit = usize_to_u64(c.effective_median_weight * 2);
+    let block_weight_median = usize_to_u64(c.effective_median_weight);
     let block_size_limit = block_weight_limit;
     let block_size_median = block_weight_median;
 
@@ -969,9 +971,11 @@ async fn get_miner_data(
     let major_version = c.current_hf.as_u8();
     let height = usize_to_u64(c.chain_height);
     let prev_id = Hex(c.top_hash);
-    let seed_hash = Hex(c.top_hash);
+    // TODO: RX seed hash <https://github.com/Cuprate/cuprate/pull/355#discussion_r1911814320>.
+    let seed_hash = Hex([0; 32]);
     let difficulty = c.next_difficulty.hex_prefix();
-    let median_weight = usize_to_u64(c.median_weight_for_block_reward);
+    // TODO: <https://github.com/Cuprate/cuprate/pull/355#discussion_r1911821515>
+    let median_weight = usize_to_u64(c.effective_median_weight);
     let already_generated_coins = c.already_generated_coins;
     let tx_backlog = txpool::backlog(&mut state.txpool_read)
         .await?
@@ -1061,7 +1065,7 @@ async fn add_aux_pow(
         tokio::time::sleep(Duration::from_millis(100)).await;
     }
 
-    tokio::task::spawn_blocking(|| add_aux_pow_inner(state, request)).await?
+    cuprate_helper::asynch::rayon_spawn_async(|| add_aux_pow_inner(state, request)).await
 }
 
 /// <https://github.com/monero-project/monero/blob/cc73fe71162d564ffda8e549b79a350bca53c454/src/rpc/core_rpc_server.cpp#L2072-L2207>

binaries/cuprated/src/rpc/handlers/shared.rs

@@ -45,34 +45,22 @@ pub(super) async fn get_outs(
         return Err(anyhow!("Too many outs requested"));
     }
 
-    let outputs = {
-        let mut outputs = HashMap::<u64, HashSet<u64>>::with_capacity(request.outputs.len());
+    let outputs = blockchain::outputs_vec(&mut state.blockchain_read, request.outputs).await?;
+    let mut outs = Vec::<OutKeyBin>::with_capacity(outputs.len());
 
-        for out in request.outputs {
-            outputs
-                .entry(out.amount)
-                .and_modify(|set| {
-                    set.insert(out.index);
-                })
-                .or_insert_with(|| HashSet::from([out.index]));
-        }
-
-        outputs
-    };
-
-    let outs = blockchain::outputs(&mut state.blockchain_read, outputs)
-        .await?
-        .into_iter()
-        .flat_map(|(amount, index_map)| {
-            index_map.into_values().map(|out| OutKeyBin {
+    for (_, index_vec) in outputs {
+        for (_, out) in index_vec {
+            let out_key = OutKeyBin {
                 key: out.key.map_or([0; 32], |e| e.compress().0),
                 mask: out.commitment.compress().0,
-                unlocked: matches!(out.time_lock, Timelock::None),
+                unlocked: helper::timelock_is_unlocked(&mut state, out.time_lock).await?,
                 height: usize_to_u64(out.height),
                 txid: if request.get_txid { out.txid } else { [0; 32] },
-            })
-        })
-        .collect::<Vec<OutKeyBin>>();
+            };
+
+            outs.push(out_key);
+        }
+    }
 
     Ok(GetOutsResponse {
         base: helper::access_response_base(false),

binaries/cuprated/src/rpc/service/blockchain.rs

@@ -6,6 +6,7 @@ use std::{
 };
 
 use anyhow::Error;
+use cuprate_rpc_types::misc::GetOutputsOut;
 use monero_serai::block::Block;
 use tower::{Service, ServiceExt};
 
@@ -203,6 +204,28 @@ pub async fn outputs(
     Ok(outputs)
 }
 
+/// [`BlockchainReadRequest::OutputsVec`]
+pub async fn outputs_vec(
+    blockchain_read: &mut BlockchainReadHandle,
+    outputs: Vec<GetOutputsOut>,
+) -> Result<Vec<(u64, Vec<(u64, OutputOnChain)>)>, Error> {
+    let outputs = outputs
+        .into_iter()
+        .map(|output| (output.amount, output.index))
+        .collect();
+
+    let BlockchainResponse::OutputsVec(outputs) = blockchain_read
+        .ready()
+        .await?
+        .call(BlockchainReadRequest::OutputsVec(outputs))
+        .await?
+    else {
+        unreachable!();
+    };
+
+    Ok(outputs)
+}
+
 /// [`BlockchainReadRequest::NumberOutputsWithAmount`]
 pub async fn number_outputs_with_amount(
     blockchain_read: &mut BlockchainReadHandle,

storage/blockchain/src/service/read.rs

@@ -119,8 +119,10 @@ fn map_request(
         R::ChainHeight => chain_height(env),
         R::GeneratedCoins(height) => generated_coins(env, height),
         R::Outputs(map) => outputs(env, map),
+        R::OutputsVec(vec) => outputs_vec(env, vec),
         R::NumberOutputsWithAmount(vec) => number_outputs_with_amount(env, vec),
         R::KeyImagesSpent(set) => key_images_spent(env, set),
+        R::KeyImagesSpentVec(set) => key_images_spent_vec(env, set),
         R::CompactChainHistory => compact_chain_history(env),
         R::NextChainEntry(block_hashes, amount) => next_chain_entry(env, &block_hashes, amount),
         R::FindFirstUnknown(block_ids) => find_first_unknown(env, &block_ids),
@@ -487,6 +489,12 @@ fn outputs(env: &ConcreteEnv, outputs: HashMap<Amount, HashSet<AmountIndex>>) ->
     Ok(BlockchainResponse::Outputs(map))
 }
 
+/// [`BlockchainReadRequest::OutputsVec`].
+#[inline]
+fn outputs_vec(env: &ConcreteEnv, outputs: Vec<(Amount, AmountIndex)>) -> ResponseResult {
+    Ok(BlockchainResponse::OutputsVec(todo!()))
+}
+
 /// [`BlockchainReadRequest::NumberOutputsWithAmount`].
 #[inline]
 fn number_outputs_with_amount(env: &ConcreteEnv, amounts: Vec<Amount>) -> ResponseResult {
@@ -538,7 +546,43 @@ fn number_outputs_with_amount(env: &ConcreteEnv, amounts: Vec<Amount>) -> Respon
 
 /// [`BlockchainReadRequest::KeyImagesSpent`].
 #[inline]
-fn key_images_spent(env: &ConcreteEnv, key_images: Vec<KeyImage>) -> ResponseResult {
+fn key_images_spent(env: &ConcreteEnv, key_images: HashSet<KeyImage>) -> ResponseResult {
+    // Prepare tx/tables in `ThreadLocal`.
+    let env_inner = env.env_inner();
+    let tx_ro = thread_local(env);
+    let tables = thread_local(env);
+
+    // Key image check function.
+    let key_image_exists = |key_image| {
+        let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
+        let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
+        key_image_exists(&key_image, tables.key_images())
+    };
+
+    // FIXME:
+    // Create/use `enum cuprate_types::Exist { Does, DoesNot }`
+    // or similar instead of `bool` for clarity.
+    // <https://github.com/Cuprate/cuprate/pull/113#discussion_r1581536526>
+    //
+    // Collect results using `rayon`.
+    match key_images
+        .into_par_iter()
+        .map(key_image_exists)
+        // If the result is either:
+        // `Ok(true)` => a key image was found, return early
+        // `Err` => an error was found, return early
+        //
+        // Else, `Ok(false)` will continue the iterator.
+        .find_any(|result| !matches!(result, Ok(false)))
+    {
+        None | Some(Ok(false)) => Ok(BlockchainResponse::KeyImagesSpent(false)), // Key image was NOT found.
+        Some(Ok(true)) => Ok(BlockchainResponse::KeyImagesSpent(true)), // Key image was found.
+        Some(Err(e)) => Err(e), // A database error occurred.
+    }
+}
+
+/// [`BlockchainReadRequest::KeyImagesSpentVec`].
+fn key_images_spent_vec(env: &ConcreteEnv, key_images: Vec<KeyImage>) -> ResponseResult {
     // Prepare tx/tables in `ThreadLocal`.
     let env_inner = env.env_inner();
     let tx_ro = thread_local(env);
@@ -552,7 +596,7 @@ fn key_images_spent(env: &ConcreteEnv, key_images: Vec<KeyImage>) -> ResponseRes
     };
 
     // Collect results using `rayon`.
-    Ok(BlockchainResponse::KeyImagesSpent(
+    Ok(BlockchainResponse::KeyImagesSpentVec(
         key_images
             .into_par_iter()
             .map(key_image_exists)

storage/blockchain/src/service/tests.rs

@@ -180,7 +180,7 @@ async fn test_template(
 
     // Contains a fake non-spent key-image.
     let ki_req = vec![[0; 32]];
-    let ki_resp = Ok(BlockchainResponse::KeyImagesSpent(vec![false]));
+    let ki_resp = Ok(BlockchainResponse::KeyImagesSpentVec(vec![false]));
 
     //----------------------------------------------------------------------- Assert expected response
     // Assert read requests lead to the expected responses.
@@ -218,7 +218,7 @@ async fn test_template(
             BlockchainReadRequest::NumberOutputsWithAmount(num_req),
             num_resp,
         ),
-        (BlockchainReadRequest::KeyImagesSpent(ki_req), ki_resp),
+        (BlockchainReadRequest::KeyImagesSpentVec(ki_req), ki_resp),
     ] {
         let response = reader.clone().oneshot(request).await;
         println!("response: {response:#?}, expected_response: {expected_response:#?}");
@@ -232,12 +232,12 @@ async fn test_template(
     // Assert each key image we inserted comes back as "spent".
     for key_image in tables.key_images_iter().keys().unwrap() {
         let key_image = key_image.unwrap();
-        let request = BlockchainReadRequest::KeyImagesSpent(vec![key_image]);
+        let request = BlockchainReadRequest::KeyImagesSpentVec(vec![key_image]);
         let response = reader.clone().oneshot(request).await;
         println!("response: {response:#?}, key_image: {key_image:#?}");
         assert_eq!(
             response.unwrap(),
-            BlockchainResponse::KeyImagesSpent(vec![true])
+            BlockchainResponse::KeyImagesSpentVec(vec![true])
         );
     }
 

types/types/src/blockchain.rs

@@ -96,6 +96,13 @@ pub enum BlockchainReadRequest {
     /// RCT output indices.
     Outputs(HashMap<u64, HashSet<u64>>),
 
+    /// This is the same as [`BlockchainReadRequest::Outputs`] but with a [`Vec`] container.
+    ///
+    /// The input [`Vec`] values are `(amount, amount_index)`.
+    ///
+    /// The response will be in the same order as the request.
+    OutputsVec(Vec<(u64, u64)>),
+
     /// Request the amount of outputs with a certain amount.
     ///
     /// The input is a list of output amounts.
@@ -104,7 +111,12 @@ pub enum BlockchainReadRequest {
     /// Check the spend status of key images.
     ///
     /// Input is a set of key images.
-    KeyImagesSpent(Vec<[u8; 32]>),
+    KeyImagesSpent(HashSet<[u8; 32]>),
+
+    /// Same as [`BlockchainReadRequest::KeyImagesSpent`] but with a [`Vec`].
+    ///
+    /// The response will be in the same order as the request.
+    KeyImagesSpentVec(Vec<[u8; 32]>),
 
     /// A request for the compact chain history.
     CompactChainHistory,
@@ -284,6 +296,9 @@ pub enum BlockchainResponse {
     /// associated with their amount and amount index.
     Outputs(HashMap<u64, HashMap<u64, OutputOnChain>>),
 
+    /// Response to [`BlockchainReadRequest::OutputsVec`].
+    OutputsVec(Vec<(u64, Vec<(u64, OutputOnChain)>)>),
+
     /// Response to [`BlockchainReadRequest::NumberOutputsWithAmount`].
     ///
     /// Inner value is a `HashMap` of all the outputs requested where:
@@ -293,11 +308,19 @@ pub enum BlockchainResponse {
 
     /// Response to [`BlockchainReadRequest::KeyImagesSpent`].
     ///
+    /// The inner value is `true` if _any_ of the key images
+    /// were spent (existed in the database already).
+    ///
+    /// The inner value is `false` if _none_ of the key images were spent.
+    KeyImagesSpent(bool),
+
+    /// Response to [`BlockchainReadRequest::KeyImagesSpentVec`].
+    ///
     /// Inner value is a `Vec` the same length as the input.
     ///
     /// The index of each entry corresponds with the request.
     /// `true` means that the key image was spent.
-    KeyImagesSpent(Vec<bool>),
+    KeyImagesSpentVec(Vec<bool>),
 
     /// Response to [`BlockchainReadRequest::CompactChainHistory`].
     CompactChainHistory {