Merge pull request #504

9ee48e9 wallet2: speed up wallet refresh for large miners (moneromooo-monero)
4905903 wallet2: parallelize pulling blocks and processing them on refresh (moneromooo-monero)
d0eaf1d wallet2: maintain the short chain manually when refreshing (moneromooo-monero)
a4e9506 wallet2: split pull blocks between pulling and processing (moneromooo-monero)

2 files changed, 117 insertions, 25 deletions

diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index a6ac860c7..6136480d6 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -203,31 +203,64 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
 
     tx_pub_key = pub_key_field.pub_key;
     bool r = true;
-    int threads;
+    int threads = std::thread::hardware_concurrency();
     if (miner_tx && m_refresh_type == RefreshNoCoinbase)
     {
       // assume coinbase isn't for us
     }
     else if (miner_tx && m_refresh_type == RefreshOptimizeCoinbase)
     {
-      for (size_t i = 0; i < tx.vout.size(); ++i)
+      uint64_t money_transfered = 0;
+      bool error = false;
+      check_acc_out(m_account.get_keys(), tx.vout[0], tx_pub_key, 0, money_transfered, error);
+      if (error)
       {
-        uint64_t money_transfered = 0;
-        bool error = false;
-        check_acc_out(m_account.get_keys(), tx.vout[i], tx_pub_key, i, money_transfered, error);
-        if (error)
+        r = false;
+      }
+      else
+      {
+        // this assumes that the miner tx pays a single address
+        if (money_transfered > 0)
         {
-          r = false;
-          break;
+          outs.push_back(0);
+          tx_money_got_in_outs = money_transfered;
+
+          // process the other outs from that tx
+          boost::asio::io_service ioservice;
+          boost::thread_group threadpool;
+          std::auto_ptr < boost::asio::io_service::work > work(new boost::asio::io_service::work(ioservice));
+          for (int i = 0; i < threads; i++)
+          {
+            threadpool.create_thread(boost::bind(&boost::asio::io_service::run, &ioservice));
+          }
+
+          const account_keys &keys = m_account.get_keys();
+          std::vector<uint64_t> money_transfered(tx.vout.size());
+          std::deque<bool> error(tx.vout.size());
+          // the first one was already checked
+          for (size_t i = 1; i < tx.vout.size(); ++i)
+          {
+            ioservice.dispatch(boost::bind(&wallet2::check_acc_out, this, std::cref(keys), std::cref(tx.vout[i]), std::cref(tx_pub_key), i,
+              std::ref(money_transfered[i]), std::ref(error[i])));
+          }
+          KILL_IOSERVICE();
+          for (size_t i = 1; i < tx.vout.size(); ++i)
+          {
+            if (error[i])
+            {
+              r = false;
+              break;
+            }
+            if (money_transfered[i])
+            {
+              outs.push_back(i);
+              tx_money_got_in_outs += money_transfered[i];
+            }
+          }
         }
-        // this assumes that the miner tx pays a single address
-        if (money_transfered == 0)
-          break;
-        outs.push_back(i);
-        tx_money_got_in_outs += money_transfered;
       }
     }
-    else if (tx.vout.size() > 1 && (threads = std::thread::hardware_concurrency()) > 1)
+    else if (tx.vout.size() > 1 && threads > 1)
     {
       boost::asio::io_service ioservice;
       boost::thread_group threadpool;
@@ -274,7 +307,9 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
       cryptonote::COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::request req = AUTO_VAL_INIT(req);
       cryptonote::COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::response res = AUTO_VAL_INIT(res);
       req.txid = get_transaction_hash(tx);
+      m_daemon_rpc_mutex.lock();
       bool r = net_utils::invoke_http_bin_remote_command2(m_daemon_address + "/get_o_indexes.bin", req, res, m_http_client, WALLET_RCP_CONNECTION_TIMEOUT);
+      m_daemon_rpc_mutex.unlock();
       THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "get_o_indexes.bin");
       THROW_WALLET_EXCEPTION_IF(res.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_o_indexes.bin");
       THROW_WALLET_EXCEPTION_IF(res.status != CORE_RPC_STATUS_OK, error::get_out_indices_error, res.status);
@@ -478,19 +513,28 @@ void wallet2::parse_block_round(const cryptonote::blobdata &blob, cryptonote::bl
     bl_id = get_block_hash(bl);
 }
 //----------------------------------------------------------------------------------------------------
-void wallet2::pull_blocks(uint64_t start_height, uint64_t& blocks_added)
+void wallet2::pull_blocks(uint64_t start_height, uint64_t &blocks_start_height, const std::list<crypto::hash> &short_chain_history, std::list<cryptonote::block_complete_entry> &blocks)
 {
-  blocks_added = 0;
   cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::request req = AUTO_VAL_INIT(req);
   cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::response res = AUTO_VAL_INIT(res);
-  get_short_chain_history(req.block_ids);
+  req.block_ids = short_chain_history;
+
   req.start_height = start_height;
+  m_daemon_rpc_mutex.lock();
   bool r = net_utils::invoke_http_bin_remote_command2(m_daemon_address + "/getblocks.bin", req, res, m_http_client, WALLET_RCP_CONNECTION_TIMEOUT);
+  m_daemon_rpc_mutex.unlock();
   THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "getblocks.bin");
   THROW_WALLET_EXCEPTION_IF(res.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "getblocks.bin");
   THROW_WALLET_EXCEPTION_IF(res.status != CORE_RPC_STATUS_OK, error::get_blocks_error, res.status);
 
-  size_t current_index = res.start_height;
+  blocks_start_height = res.start_height;
+  blocks = res.blocks;
+}
+//----------------------------------------------------------------------------------------------------
+void wallet2::process_blocks(uint64_t start_height, const std::list<cryptonote::block_complete_entry> &blocks, uint64_t& blocks_added)
+{
+  size_t current_index = start_height;
+  blocks_added = 0;
 
   int threads = std::thread::hardware_concurrency();
   if (threads > 1)
@@ -498,7 +542,6 @@ void wallet2::pull_blocks(uint64_t start_height, uint64_t& blocks_added)
     std::vector<crypto::hash> round_block_hashes(threads);
     std::vector<cryptonote::block> round_blocks(threads);
     std::deque<bool> error(threads);
-    const std::list<block_complete_entry> &blocks = res.blocks;
     size_t blocks_size = blocks.size();
     std::list<block_complete_entry>::const_iterator blocki = blocks.begin();
     for (size_t b = 0; b < blocks_size; b += threads)
@@ -559,10 +602,10 @@ void wallet2::pull_blocks(uint64_t start_height, uint64_t& blocks_added)
   }
   else
   {
-  BOOST_FOREACH(auto& bl_entry, res.blocks)
+  BOOST_FOREACH(auto& bl_entry, blocks)
   {
     cryptonote::block bl;
-    r = cryptonote::parse_and_validate_block_from_blob(bl_entry.block, bl);
+    bool r = cryptonote::parse_and_validate_block_from_blob(bl_entry.block, bl);
     THROW_WALLET_EXCEPTION_IF(!r, error::block_parse_error, bl_entry.block);
 
     crypto::hash bl_id = get_block_hash(bl);
@@ -574,9 +617,9 @@ void wallet2::pull_blocks(uint64_t start_height, uint64_t& blocks_added)
     else if(bl_id != m_blockchain[current_index])
     {
       //split detected here !!!
-      THROW_WALLET_EXCEPTION_IF(current_index == res.start_height, error::wallet_internal_error,
+      THROW_WALLET_EXCEPTION_IF(current_index == start_height, error::wallet_internal_error,
         "wrong daemon response: split starts from the first block in response " + string_tools::pod_to_hex(bl_id) +
-        " (height " + std::to_string(res.start_height) + "), local block id at this height: " +
+        " (height " + std::to_string(start_height) + "), local block id at this height: " +
         string_tools::pod_to_hex(m_blockchain[current_index]));
 
       detach_blockchain(current_index);
@@ -604,6 +647,23 @@ void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched)
   refresh(start_height, blocks_fetched, received_money);
 }
 //----------------------------------------------------------------------------------------------------
+void wallet2::pull_next_blocks(uint64_t start_height, uint64_t &blocks_start_height, std::list<crypto::hash> &short_chain_history, const std::list<cryptonote::block_complete_entry> &prev_blocks, std::list<cryptonote::block_complete_entry> &blocks)
+{
+  // prepend the last 3 blocks, should be enough to guard against a block or two's reorg
+  cryptonote::block bl;
+  std::list<cryptonote::block_complete_entry>::const_reverse_iterator i = prev_blocks.rbegin();
+  for (size_t n = 0; n < std::min((size_t)3, prev_blocks.size()); ++n)
+  {
+    bool ok = cryptonote::parse_and_validate_block_from_blob(i->block, bl);
+    THROW_WALLET_EXCEPTION_IF(!ok, error::block_parse_error, i->block);
+    short_chain_history.push_front(cryptonote::get_block_hash(bl));
+    ++i;
+  }
+
+  // pull the new blocks
+  pull_blocks(start_height, blocks_start_height, short_chain_history, blocks);
+}
+//----------------------------------------------------------------------------------------------------
 void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched, bool& received_money)
 {
   received_money = false;
@@ -611,15 +671,33 @@ void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched, bool& re
   uint64_t added_blocks = 0;
   size_t try_count = 0;
   crypto::hash last_tx_hash_id = m_transfers.size() ? get_transaction_hash(m_transfers.back().m_tx) : null_hash;
+  std::list<crypto::hash> short_chain_history;
+  std::thread pull_thread;
+  uint64_t blocks_start_height;
+  std::list<cryptonote::block_complete_entry> blocks;
+
+  // pull the first set of blocks
+  get_short_chain_history(short_chain_history);
+  pull_blocks(start_height, blocks_start_height, short_chain_history, blocks);
 
   while(m_run.load(std::memory_order_relaxed))
   {
     try
     {
-      pull_blocks(start_height, added_blocks);
+      // pull the next set of blocks while we're processing the current one
+      uint64_t next_blocks_start_height;
+      std::list<cryptonote::block_complete_entry> next_blocks;
+      pull_thread = std::thread([&]{pull_next_blocks(start_height, next_blocks_start_height, short_chain_history, blocks, next_blocks);});
+
+      process_blocks(blocks_start_height, blocks, added_blocks);
       blocks_fetched += added_blocks;
+      pull_thread.join();
       if(!added_blocks)
         break;
+
+      // switch to the new blocks from the daemon
+      blocks_start_height = next_blocks_start_height;
+      blocks = next_blocks;
     }
     catch (const std::exception&)
     {
@@ -1050,6 +1128,8 @@ bool wallet2::prepare_file_names(const std::string& file_path)
 //----------------------------------------------------------------------------------------------------
 bool wallet2::check_connection()
 {
+  std::lock_guard<std::mutex> lock(m_daemon_rpc_mutex);
+
   if(m_http_client.is_connected())
     return true;
 
@@ -1262,7 +1342,9 @@ void wallet2::rescan_spent()
   COMMAND_RPC_IS_KEY_IMAGE_SPENT::request req = AUTO_VAL_INIT(req);
   COMMAND_RPC_IS_KEY_IMAGE_SPENT::response daemon_resp = AUTO_VAL_INIT(daemon_resp);
   req.key_images = key_images;
+  m_daemon_rpc_mutex.lock();
   bool r = epee::net_utils::invoke_http_json_remote_command2(m_daemon_address + "/is_key_image_spent", req, daemon_resp, m_http_client, 200000);
+  m_daemon_rpc_mutex.unlock();
   THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "is_key_image_spent");
   THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "is_key_image_spent");
   THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::is_key_image_spent_error, daemon_resp.status);
@@ -1569,7 +1651,9 @@ void wallet2::commit_tx(pending_tx& ptx)
   COMMAND_RPC_SEND_RAW_TX::request req;
   req.tx_as_hex = epee::string_tools::buff_to_hex_nodelimer(tx_to_blob(ptx.tx));
   COMMAND_RPC_SEND_RAW_TX::response daemon_send_resp;
+  m_daemon_rpc_mutex.lock();
   bool r = epee::net_utils::invoke_http_json_remote_command2(m_daemon_address + "/sendrawtransaction", req, daemon_send_resp, m_http_client, 200000);
+  m_daemon_rpc_mutex.unlock();
   THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "sendrawtransaction");
   THROW_WALLET_EXCEPTION_IF(daemon_send_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "sendrawtransaction");
   THROW_WALLET_EXCEPTION_IF(daemon_send_resp.status != CORE_RPC_STATUS_OK, error::tx_rejected, ptx.tx, daemon_send_resp.status);
@@ -1757,7 +1841,9 @@ void wallet2::transfer_selected(const std::vector<cryptonote::tx_destination_ent
       req.amounts.push_back(it->amount());
     }
 
+    m_daemon_rpc_mutex.lock();
     bool r = epee::net_utils::invoke_http_bin_remote_command2(m_daemon_address + "/getrandom_outs.bin", req, daemon_resp, m_http_client, 200000);
+    m_daemon_rpc_mutex.unlock();
     THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "getrandom_outs.bin");
     THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "getrandom_outs.bin");
     THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::get_random_outs_error, daemon_resp.status);
diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h
index e036020b8..b71697c1f 100644
--- a/src/wallet/wallet2.h
+++ b/src/wallet/wallet2.h
@@ -355,7 +355,9 @@ namespace tools
     bool is_tx_spendtime_unlocked(uint64_t unlock_time) const;
     bool is_transfer_unlocked(const transfer_details& td) const;
     bool clear();
-    void pull_blocks(uint64_t start_height, uint64_t& blocks_added);
+    void pull_blocks(uint64_t start_height, uint64_t& blocks_start_height, const std::list<crypto::hash> &short_chain_history, std::list<cryptonote::block_complete_entry> &blocks);
+    void pull_next_blocks(uint64_t start_height, uint64_t &blocks_start_height, std::list<crypto::hash> &short_chain_history, const std::list<cryptonote::block_complete_entry> &prev_blocks, std::list<cryptonote::block_complete_entry> &blocks);
+    void process_blocks(uint64_t start_height, const std::list<cryptonote::block_complete_entry> &blocks, uint64_t& blocks_added);
     uint64_t select_transfers(uint64_t needed_money, bool add_dust, uint64_t dust, std::list<transfer_container::iterator>& selected_transfers);
     bool prepare_file_names(const std::string& file_path);
     void process_unconfirmed(const cryptonote::transaction& tx, uint64_t height);
@@ -387,6 +389,8 @@ namespace tools
 
     std::atomic<bool> m_run;
 
+    std::mutex m_daemon_rpc_mutex;
+
     i_wallet2_callback* m_callback;
     bool m_testnet;
     bool m_restricted;
@@ -563,7 +567,9 @@ namespace tools
         req.amounts.push_back(it->amount());
       }
 
+      m_daemon_rpc_mutex.lock();
       bool r = epee::net_utils::invoke_http_bin_remote_command2(m_daemon_address + "/getrandom_outs.bin", req, daemon_resp, m_http_client, 200000);
+      m_daemon_rpc_mutex.unlock();
       THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "getrandom_outs.bin");
       THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "getrandom_outs.bin");
       THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::get_random_outs_error, daemon_resp.status);