Merge pull request #687 from ethcore/pv63-receipts

PV63 receipts response

ethcore/src/client/client.rs

@@ -108,13 +108,13 @@ pub struct Client<V = CanonVerifier> where V: Verifier {
 	verifier: PhantomData<V>,
 }
 
-const HISTORY: u64 = 1000;
+const HISTORY: u64 = 1200;
 // DO NOT TOUCH THIS ANY MORE UNLESS YOU REALLY KNOW WHAT YOU'RE DOING.
 // Altering it will force a blanket DB update for *all* JournalDB-derived
 //   databases.
 // Instead, add/upgrade the version string of the individual JournalDB-derived database
 // of which you actually want force an upgrade.
-const CLIENT_DB_VER_STR: &'static str = "5.2";
+const CLIENT_DB_VER_STR: &'static str = "5.3";
 
 impl Client<CanonVerifier> {
 	/// Create a new client with given spec and DB path.
@@ -505,12 +505,12 @@ impl<V> BlockChainClient for Client<V> where V: Verifier {
 		}
 	}
 
-	fn state_data(&self, _hash: &H256) -> Option<Bytes> {
-		None
+	fn state_data(&self, hash: &H256) -> Option<Bytes> {
+		self.state_db.lock().unwrap().state(hash)
 	}
 
-	fn block_receipts(&self, _hash: &H256) -> Option<Bytes> {
-		None
+	fn block_receipts(&self, hash: &H256) -> Option<Bytes> {
+		self.chain.block_receipts(hash).map(|receipts| rlp::encode(&receipts).to_vec())
 	}
 
 	fn import_block(&self, bytes: Bytes) -> ImportResult {

ethcore/src/client/test_client.rs

@@ -24,7 +24,9 @@ use header::{Header as BlockHeader, BlockNumber};
 use filter::Filter;
 use log_entry::LocalizedLogEntry;
 use receipt::Receipt;
+use extras::BlockReceipts;
 use error::{ImportResult};
+
 use block_queue::BlockQueueInfo;
 use block::{SealedBlock, ClosedBlock};
 
@@ -292,10 +294,10 @@ impl BlockChainClient for TestBlockChainClient {
 	fn block_receipts(&self, hash: &H256) -> Option<Bytes> {
 		// starts with 'f' ?
 		if *hash > H256::from("f000000000000000000000000000000000000000000000000000000000000000") {
-			let receipt = Receipt::new(
+			let receipt = BlockReceipts::new(vec![Receipt::new(
 				H256::zero(),
 				U256::zero(),
-				vec![]);
+				vec![])]);
 			let mut rlp = RlpStream::new();
 			rlp.append(&receipt);
 			return Some(rlp.out());

ethcore/src/tests/client.rs

@@ -35,6 +35,17 @@ fn imports_from_empty() {
 	client.flush_queue();
 }
 
+#[test]
+fn returns_state_root_basic() {
+	let client_result = generate_dummy_client(6);
+	let client = client_result.reference();
+	let test_spec = get_test_spec();
+	let test_engine = test_spec.to_engine().unwrap();
+	let state_root = test_engine.spec().genesis_header().state_root;
+
+	assert!(client.state_data(&state_root).is_some());
+}
+
 #[test]
 fn imports_good_block() {
 	let dir = RandomTempPath::new();

sync/src/chain.rs

@@ -64,6 +64,7 @@ const MAX_BODIES_TO_SEND: usize = 256;
 const MAX_HEADERS_TO_SEND: usize = 512;
 const MAX_NODE_DATA_TO_SEND: usize = 1024;
 const MAX_RECEIPTS_TO_SEND: usize = 1024;
+const MAX_RECEIPTS_HEADERS_TO_SEND: usize = 256;
 const MAX_HEADERS_TO_REQUEST: usize = 512;
 const MAX_BODIES_TO_REQUEST: usize = 256;
 const MIN_PEERS_PROPAGATION: usize = 4;
@@ -1053,17 +1054,20 @@ impl ChainSync {
 			debug!(target: "sync", "Empty GetReceipts request, ignoring.");
 			return Ok(None);
 		}
-		count = min(count, MAX_RECEIPTS_TO_SEND);
-		let mut added = 0usize;
+		count = min(count, MAX_RECEIPTS_HEADERS_TO_SEND);
+		let mut added_headers = 0usize;
+		let mut added_receipts = 0usize;
 		let mut data = Bytes::new();
 		for i in 0..count {
-			if let Some(mut hdr) = io.chain().block_receipts(&try!(rlp.val_at::<H256>(i))) {
-				data.append(&mut hdr);
-				added += 1;
+			if let Some(mut receipts_bytes) = io.chain().block_receipts(&try!(rlp.val_at::<H256>(i))) {
+				data.append(&mut receipts_bytes);
+				added_receipts += receipts_bytes.len();
+				added_headers += 1;
+				if added_receipts > MAX_RECEIPTS_TO_SEND { break; }
 			}
 		}
-		let mut rlp_result = RlpStream::new_list(added);
-		rlp_result.append_raw(&data, added);
+		let mut rlp_result = RlpStream::new_list(added_headers);
+		rlp_result.append_raw(&data, added_headers);
 		Ok(Some((RECEIPTS_PACKET, rlp_result)))
 	}
 
@@ -1358,7 +1362,7 @@ mod tests {
 		assert!(rlp_result.is_some());
 
 		// the length of two rlp-encoded receipts
-		assert_eq!(597, rlp_result.unwrap().1.out().len());
+		assert_eq!(603, rlp_result.unwrap().1.out().len());
 
 		let mut sync = dummy_sync_with_peer(H256::new());
 		io.sender = Some(2usize);