rpc: remove obsolete busy core checks

src/cryptonote_core/blockchain.h

@@ -634,16 +634,6 @@ namespace cryptonote
      */
     uint64_t get_current_cumulative_blocksize_limit() const;
 
-    /**
-     * @brief checks if the blockchain is currently being stored
-     *
-     * Note: this should be meaningless in cases where Blockchain is not
-     * directly managing saving the blockchain to disk.
-     *
-     * @return true if Blockchain is having the chain stored currently, else false
-     */
-    bool is_storing_blockchain()const{return false;}
-
     /**
      * @brief gets the difficulty of the block with a given height
      *

src/rpc/core_rpc_server.cpp

@@ -105,16 +105,6 @@ namespace cryptonote
       std::move(port), std::move(rpc_config->bind_ip), std::move(rpc_config->access_control_origins), std::move(http_login)
     );
   }
-  //------------------------------------------------------------------------------------------------------------------------------
-  bool core_rpc_server::check_core_busy()
-  {
-    if(m_p2p.get_payload_object().get_core().get_blockchain_storage().is_storing_blockchain())
-    {
-      return false;
-    }
-    return true;
-  }
-#define CHECK_CORE_BUSY() do { if(!check_core_busy()){res.status =  CORE_RPC_STATUS_BUSY;return true;} } while(0)
   //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::check_core_ready()
   {
@@ -122,7 +112,7 @@ namespace cryptonote
     {
       return false;
     }
-    return check_core_busy();
+    return true;
   }
 #define CHECK_CORE_READY() do { if(!check_core_ready()){res.status =  CORE_RPC_STATUS_BUSY;return true;} } while(0)
 
@@ -130,7 +120,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_height(const COMMAND_RPC_GET_HEIGHT::request& req, COMMAND_RPC_GET_HEIGHT::response& res)
   {
     PERF_TIMER(on_get_height);
-    CHECK_CORE_BUSY();
     res.height = m_core.get_current_blockchain_height();
     res.status = CORE_RPC_STATUS_OK;
     return true;
@@ -139,7 +128,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_info(const COMMAND_RPC_GET_INFO::request& req, COMMAND_RPC_GET_INFO::response& res)
   {
     PERF_TIMER(on_get_info);
-    CHECK_CORE_BUSY();
     crypto::hash top_hash;
     m_core.get_blockchain_top(res.height, top_hash);
     ++res.height; // turn top block height into blockchain height
@@ -184,7 +172,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_blocks(const COMMAND_RPC_GET_BLOCKS_FAST::request& req, COMMAND_RPC_GET_BLOCKS_FAST::response& res)
   {
     PERF_TIMER(on_get_blocks);
-    CHECK_CORE_BUSY();
     std::list<std::pair<cryptonote::blobdata, std::list<cryptonote::blobdata> > > bs;
 
     if(!m_core.find_blockchain_supplement(req.start_height, req.block_ids, bs, res.current_height, res.start_height, COMMAND_RPC_GET_BLOCKS_FAST_MAX_COUNT))
@@ -244,7 +231,6 @@ namespace cryptonote
     bool core_rpc_server::on_get_alt_blocks_hashes(const COMMAND_RPC_GET_ALT_BLOCKS_HASHES::request& req, COMMAND_RPC_GET_ALT_BLOCKS_HASHES::response& res)
     {
       PERF_TIMER(on_get_alt_blocks_hashes);
-      CHECK_CORE_BUSY();
       std::list<block> blks;
 
       if(!m_core.get_alternative_blocks(blks))
@@ -268,7 +254,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_blocks_by_height(const COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::request& req, COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::response& res)
   {
     PERF_TIMER(on_get_blocks_by_height);
-    CHECK_CORE_BUSY();
     res.status = "Failed";
     res.blocks.clear();
     res.blocks.reserve(req.heights.size());
@@ -299,7 +284,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_hashes(const COMMAND_RPC_GET_HASHES_FAST::request& req, COMMAND_RPC_GET_HASHES_FAST::response& res)
   {
     PERF_TIMER(on_get_hashes);
-    CHECK_CORE_BUSY();
     NOTIFY_RESPONSE_CHAIN_ENTRY::request resp;
 
     resp.start_height = req.start_height;
@@ -319,7 +303,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_random_outs(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res)
   {
     PERF_TIMER(on_get_random_outs);
-    CHECK_CORE_BUSY();
     res.status = "Failed";
 
     if (m_restricted)
@@ -359,7 +342,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_outs_bin(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res)
   {
     PERF_TIMER(on_get_outs_bin);
-    CHECK_CORE_BUSY();
     res.status = "Failed";
 
     if (m_restricted)
@@ -383,7 +365,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_outs(const COMMAND_RPC_GET_OUTPUTS::request& req, COMMAND_RPC_GET_OUTPUTS::response& res)
   {
     PERF_TIMER(on_get_outs);
-    CHECK_CORE_BUSY();
     res.status = "Failed";
 
     if (m_restricted)
@@ -422,7 +403,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res)
   {
     PERF_TIMER(on_get_random_rct_outs);
-    CHECK_CORE_BUSY();
     res.status = "Failed";
     if(!m_core.get_random_rct_outs(req, res))
     {
@@ -447,7 +427,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_indexes(const COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::request& req, COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::response& res)
   {
     PERF_TIMER(on_get_indexes);
-    CHECK_CORE_BUSY();
     bool r = m_core.get_tx_outputs_gindexs(req.txid, res.o_indexes);
     if(!r)
     {
@@ -462,7 +441,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_transactions(const COMMAND_RPC_GET_TRANSACTIONS::request& req, COMMAND_RPC_GET_TRANSACTIONS::response& res)
   {
     PERF_TIMER(on_get_transactions);
-    CHECK_CORE_BUSY();
     std::vector<crypto::hash> vh;
     for(const auto& tx_hex_str: req.txs_hashes)
     {
@@ -608,7 +586,6 @@ namespace cryptonote
   bool core_rpc_server::on_is_key_image_spent(const COMMAND_RPC_IS_KEY_IMAGE_SPENT::request& req, COMMAND_RPC_IS_KEY_IMAGE_SPENT::response& res, bool request_has_rpc_origin)
   {
     PERF_TIMER(on_is_key_image_spent);
-    CHECK_CORE_BUSY();
     std::vector<crypto::key_image> key_images;
     for(const auto& ki_hex_str: req.key_images)
     {
@@ -797,7 +774,6 @@ namespace cryptonote
   bool core_rpc_server::on_mining_status(const COMMAND_RPC_MINING_STATUS::request& req, COMMAND_RPC_MINING_STATUS::response& res)
   {
     PERF_TIMER(on_mining_status);
-    CHECK_CORE_BUSY();
 
     const miner& lMiner = m_core.get_miner();
     res.active = lMiner.is_mining();
@@ -817,7 +793,6 @@ namespace cryptonote
   bool core_rpc_server::on_save_bc(const COMMAND_RPC_SAVE_BC::request& req, COMMAND_RPC_SAVE_BC::response& res)
   {
     PERF_TIMER(on_save_bc);
-    CHECK_CORE_BUSY();
     if( !m_core.get_blockchain_storage().store_blockchain() )
     {
       res.status = "Error while storing blockhain";
@@ -897,7 +872,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_transaction_pool(const COMMAND_RPC_GET_TRANSACTION_POOL::request& req, COMMAND_RPC_GET_TRANSACTION_POOL::response& res, bool request_has_rpc_origin)
   {
     PERF_TIMER(on_get_transaction_pool);
-    CHECK_CORE_BUSY();
     m_core.get_pool_transactions_and_spent_keys_info(res.transactions, res.spent_key_images, !request_has_rpc_origin || !m_restricted);
     res.status = CORE_RPC_STATUS_OK;
     return true;
@@ -906,7 +880,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_transaction_pool_hashes(const COMMAND_RPC_GET_TRANSACTION_POOL_HASHES::request& req, COMMAND_RPC_GET_TRANSACTION_POOL_HASHES::response& res, bool request_has_rpc_origin)
   {
     PERF_TIMER(on_get_transaction_pool_hashes);
-    CHECK_CORE_BUSY();
     m_core.get_pool_transaction_hashes(res.tx_hashes, !request_has_rpc_origin || !m_restricted);
     res.status = CORE_RPC_STATUS_OK;
     return true;
@@ -915,7 +888,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_transaction_pool_stats(const COMMAND_RPC_GET_TRANSACTION_POOL_STATS::request& req, COMMAND_RPC_GET_TRANSACTION_POOL_STATS::response& res, bool request_has_rpc_origin)
   {
     PERF_TIMER(on_get_transaction_pool_stats);
-    CHECK_CORE_BUSY();
     m_core.get_pool_transaction_stats(res.pool_stats, !request_has_rpc_origin || !m_restricted);
     res.status = CORE_RPC_STATUS_OK;
     return true;
@@ -934,7 +906,6 @@ namespace cryptonote
   bool core_rpc_server::on_getblockcount(const COMMAND_RPC_GETBLOCKCOUNT::request& req, COMMAND_RPC_GETBLOCKCOUNT::response& res)
   {
     PERF_TIMER(on_getblockcount);
-    CHECK_CORE_BUSY();
     res.count = m_core.get_current_blockchain_height();
     res.status = CORE_RPC_STATUS_OK;
     return true;
@@ -943,12 +914,6 @@ namespace cryptonote
   bool core_rpc_server::on_getblockhash(const COMMAND_RPC_GETBLOCKHASH::request& req, COMMAND_RPC_GETBLOCKHASH::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_getblockhash);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy";
-      return false;
-    }
     if(req.size() != 1)
     {
       error_resp.code = CORE_RPC_ERROR_CODE_WRONG_PARAM;
@@ -1136,12 +1101,7 @@ namespace cryptonote
   bool core_rpc_server::on_get_last_block_header(const COMMAND_RPC_GET_LAST_BLOCK_HEADER::request& req, COMMAND_RPC_GET_LAST_BLOCK_HEADER::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_get_last_block_header);
-    if(!check_core_busy())
+    CHECK_CORE_READY();
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
     uint64_t last_block_height;
     crypto::hash last_block_hash;
     m_core.get_blockchain_top(last_block_height, last_block_hash);
@@ -1166,12 +1126,6 @@ namespace cryptonote
   //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_block_header_by_hash(const COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::request& req, COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::response& res, epee::json_rpc::error& error_resp){
     PERF_TIMER(on_get_block_header_by_hash);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
     crypto::hash block_hash;
     bool hash_parsed = parse_hash256(req.hash, block_hash);
     if(!hash_parsed)
@@ -1209,12 +1163,6 @@ namespace cryptonote
   //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_block_headers_range(const COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::request& req, COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::response& res, epee::json_rpc::error& error_resp){
     PERF_TIMER(on_get_block_headers_range);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
     const uint64_t bc_height = m_core.get_current_blockchain_height();
     if (req.start_height >= bc_height || req.end_height >= bc_height || req.start_height > req.end_height)
     {
@@ -1261,12 +1209,6 @@ namespace cryptonote
   //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_block_header_by_height(const COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT::request& req, COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT::response& res, epee::json_rpc::error& error_resp){
     PERF_TIMER(on_get_block_header_by_height);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
     if(m_core.get_current_blockchain_height() <= req.height)
     {
       error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
@@ -1295,12 +1237,6 @@ namespace cryptonote
   //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_block(const COMMAND_RPC_GET_BLOCK::request& req, COMMAND_RPC_GET_BLOCK::response& res, epee::json_rpc::error& error_resp){
     PERF_TIMER(on_get_block);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
     crypto::hash block_hash;
     if (!req.hash.empty())
     {
@@ -1359,12 +1295,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_connections(const COMMAND_RPC_GET_CONNECTIONS::request& req, COMMAND_RPC_GET_CONNECTIONS::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_get_connections);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     res.connections = m_p2p.get_payload_object().get_connections();
 
@@ -1376,12 +1306,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_info_json(const COMMAND_RPC_GET_INFO::request& req, COMMAND_RPC_GET_INFO::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_get_info_json);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     crypto::hash top_hash;
     m_core.get_blockchain_top(res.height, top_hash);
@@ -1410,12 +1334,6 @@ namespace cryptonote
   bool core_rpc_server::on_hard_fork_info(const COMMAND_RPC_HARD_FORK_INFO::request& req, COMMAND_RPC_HARD_FORK_INFO::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_hard_fork_info);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     const Blockchain &blockchain = m_core.get_blockchain_storage();
     uint8_t version = req.version > 0 ? req.version : blockchain.get_next_hard_fork_version();
@@ -1429,12 +1347,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_bans(const COMMAND_RPC_GETBANS::request& req, COMMAND_RPC_GETBANS::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_get_bans);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     auto now = time(nullptr);
     std::map<std::string, time_t> blocked_hosts = m_p2p.get_blocked_hosts();
@@ -1459,12 +1371,6 @@ namespace cryptonote
   bool core_rpc_server::on_set_bans(const COMMAND_RPC_SETBANS::request& req, COMMAND_RPC_SETBANS::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_set_bans);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     for (auto i = req.bans.begin(); i != req.bans.end(); ++i)
     {
@@ -1495,12 +1401,6 @@ namespace cryptonote
   bool core_rpc_server::on_flush_txpool(const COMMAND_RPC_FLUSH_TRANSACTION_POOL::request& req, COMMAND_RPC_FLUSH_TRANSACTION_POOL::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_flush_txpool);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     bool failed = false;
     std::list<crypto::hash> txids;
@@ -1550,12 +1450,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_output_histogram(const COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request& req, COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_get_output_histogram);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> histogram;
     try
@@ -1800,12 +1694,6 @@ namespace cryptonote
   bool core_rpc_server::on_relay_tx(const COMMAND_RPC_RELAY_TX::request& req, COMMAND_RPC_RELAY_TX::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_relay_tx);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     bool failed = false;
     for (const auto &str: req.txids)
@@ -1847,12 +1735,6 @@ namespace cryptonote
   bool core_rpc_server::on_sync_info(const COMMAND_RPC_SYNC_INFO::request& req, COMMAND_RPC_SYNC_INFO::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_sync_info);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     crypto::hash top_hash;
     m_core.get_blockchain_top(res.height, top_hash);
@@ -1879,12 +1761,6 @@ namespace cryptonote
   bool core_rpc_server::on_get_txpool_backlog(const COMMAND_RPC_GET_TRANSACTION_POOL_BACKLOG::request& req, COMMAND_RPC_GET_TRANSACTION_POOL_BACKLOG::response& res, epee::json_rpc::error& error_resp)
   {
     PERF_TIMER(on_get_txpool_backlog);
-    if(!check_core_busy())
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
-      error_resp.message = "Core is busy.";
-      return false;
-    }
 
     if (!m_core.get_txpool_backlog(res.backlog))
     {