Add on_get_alt_blocks_hashes RPC call

src/rpc/core_rpc_server.cpp

@@ -226,6 +226,28 @@ namespace cryptonote
     MDEBUG("on_get_blocks: " << bs.size() << " blocks, " << ntxes << " txes, pruned size " << pruned_size << ", unpruned size " << unpruned_size);
     res.status = CORE_RPC_STATUS_OK;
     return true;
+  }
+    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)
+    {
+      CHECK_CORE_BUSY();
+      std::list<block> blks;
+
+      if(!m_core.get_alternative_blocks(blks))
+      {
+          res.status = "Failed";
+          return false;
+      }
+
+      res.blks_hashes.reserve(blks.size());
+
+      for (auto const& blk: blks)
+      {
+          res.blks_hashes.push_back(epee::string_tools::pod_to_hex(get_block_hash(blk)));
+      }
+
+      MDEBUG("on_get_alt_blocks_hashes: " << blks.size() << " blocks " );
+      res.status = CORE_RPC_STATUS_OK;
+      return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
   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)

src/rpc/core_rpc_server.h

@@ -81,6 +81,7 @@ namespace cryptonote
       MAP_URI_AUTO_BIN2("/get_outs.bin", on_get_outs_bin, COMMAND_RPC_GET_OUTPUTS_BIN)
       MAP_URI_AUTO_BIN2("/getrandom_rctouts.bin", on_get_random_rct_outs, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS)
       MAP_URI_AUTO_JON2("/gettransactions", on_get_transactions, COMMAND_RPC_GET_TRANSACTIONS)
+      MAP_URI_AUTO_JON2("/get_alt_blocks_hashes", on_get_alt_blocks_hashes, COMMAND_RPC_GET_ALT_BLOCKS_HASHES)
       MAP_URI_AUTO_JON2("/is_key_image_spent", on_is_key_image_spent, COMMAND_RPC_IS_KEY_IMAGE_SPENT)
       MAP_URI_AUTO_JON2("/sendrawtransaction", on_send_raw_tx, COMMAND_RPC_SEND_RAW_TX)
       MAP_URI_AUTO_JON2_IF("/start_mining", on_start_mining, COMMAND_RPC_START_MINING, !m_restricted)
@@ -128,6 +129,7 @@ namespace cryptonote
 
     bool on_get_height(const COMMAND_RPC_GET_HEIGHT::request& req, COMMAND_RPC_GET_HEIGHT::response& res);
     bool on_get_blocks(const COMMAND_RPC_GET_BLOCKS_FAST::request& req, COMMAND_RPC_GET_BLOCKS_FAST::response& res);
+    bool on_get_alt_blocks_hashes(const COMMAND_RPC_GET_ALT_BLOCKS_HASHES::request& req, COMMAND_RPC_GET_ALT_BLOCKS_HASHES::response& res);
     bool on_get_blocks_by_height(const COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::request& req, COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::response& res);
     bool on_get_hashes(const COMMAND_RPC_GET_HASHES_FAST::request& req, COMMAND_RPC_GET_HASHES_FAST::response& res);
     bool on_get_transactions(const COMMAND_RPC_GET_TRANSACTIONS::request& req, COMMAND_RPC_GET_TRANSACTIONS::response& res);

src/rpc/core_rpc_server_commands_defs.h

@@ -49,7 +49,7 @@ namespace cryptonote
 // advance which version they will stop working with
 // Don't go over 32767 for any of these
 #define CORE_RPC_VERSION_MAJOR 1
-#define CORE_RPC_VERSION_MINOR 12
+#define CORE_RPC_VERSION_MINOR 13
 #define MAKE_CORE_RPC_VERSION(major,minor) (((major)<<16)|(minor))
 #define CORE_RPC_VERSION MAKE_CORE_RPC_VERSION(CORE_RPC_VERSION_MAJOR, CORE_RPC_VERSION_MINOR)
 
@@ -146,6 +146,25 @@ namespace cryptonote
     };
   };
 
+    struct COMMAND_RPC_GET_ALT_BLOCKS_HASHES
+    {
+        struct request
+        {
+            BEGIN_KV_SERIALIZE_MAP()
+            END_KV_SERIALIZE_MAP()
+        };
+
+        struct response
+        {
+            std::vector<std::string> blks_hashes;
+            std::string status;
+
+            BEGIN_KV_SERIALIZE_MAP()
+                KV_SERIALIZE(blks_hashes)
+                KV_SERIALIZE(status)
+            END_KV_SERIALIZE_MAP()
+        };
+    };
   struct COMMAND_RPC_GET_HASHES_FAST
   {