add first_block_num for get_info command

libraries/chain/block_log.cpp

@@ -574,6 +574,7 @@ namespace eosio { namespace chain {
 
    void block_log::set_version(uint32_t ver) { detail::block_log_impl::default_version = ver; }
    uint32_t block_log::version() const { return my->preamble.version; }
+   uint32_t block_log::get_first_block_num() const { return my->preamble.first_block_num; }
 
    detail::block_log_impl::block_log_impl(const block_log::config_type& config)
    : stride( config.stride )

libraries/chain/controller.cpp

@@ -2340,6 +2340,11 @@ const controller::config& controller::get_config()const
    return my->conf;
 }
 
+uint32_t controller::get_first_block_num()const
+{
+   return my->blog.get_first_block_num();
+}
+
 controller::controller( const controller::config& cfg, const chain_id_type& chain_id )
 :my( new controller_impl( cfg, *this, protocol_feature_set{}, chain_id ) )
 {
@@ -2801,6 +2806,7 @@ block_state_ptr controller::fetch_block_state_by_id( block_id_type id )const {
 
 block_state_ptr controller::fetch_block_state_by_number( uint32_t block_num )const  { try {
    const auto& rev_blocks = my->reversible_blocks.get_index<reversible_block_index,by_num>();
+
    auto objitr = rev_blocks.find(block_num);
 
    if( objitr == rev_blocks.end() ) {

libraries/chain/include/eosio/chain/block_log.hpp

@@ -97,6 +97,7 @@ namespace eosio { namespace chain {
          // used for unit test to generate older version blocklog
          static void set_version(uint32_t);
          uint32_t    version() const;
+         uint32_t get_first_block_num() const;
 
          /**
           * @param n Only test 1 block out of every n blocks. If n is 0, it is maximum between 1 and the ceiling of the total number blocks divided by 8.

libraries/chain/include/eosio/chain/controller.hpp

@@ -205,6 +205,7 @@ namespace eosio { namespace chain {
          const protocol_feature_manager&       get_protocol_feature_manager()const;
          uint32_t                              get_max_nonprivileged_inline_action_size()const;
          const config&                         get_config()const;
+         uint32_t get_first_block_num() const;
 
          const flat_set<account_name>&   get_actor_whitelist() const;
          const flat_set<account_name>&   get_actor_blacklist() const;

plugins/chain_plugin/chain_plugin.cpp

@@ -1705,6 +1705,7 @@ std::string itoh(I n, size_t hlen = sizeof(I)<<1) {
 }
 
 read_only::get_info_results read_only::get_info(const read_only::get_info_params&) const {
+
    const auto& rm = db.get_resource_limits_manager();
    return {
       itoh(static_cast<uint32_t>(app().version())),
@@ -1725,7 +1726,8 @@ read_only::get_info_results read_only::get_info(const read_only::get_info_params
       db.fork_db_pending_head_block_num(),
       db.fork_db_pending_head_block_id(),
       app().full_version_string(),
-      db.last_irreversible_block_time()
+      db.last_irreversible_block_time(),
+      db.get_first_block_num()
    };
 }
 

plugins/chain_plugin/include/eosio/chain_plugin/chain_plugin.hpp

@@ -138,6 +138,7 @@ class read_only {
       std::optional<chain::block_id_type>  fork_db_head_block_id;
       std::optional<string>                server_full_version_string;
       std::optional<fc::time_point>        last_irreversible_block_time;
+      std::optional<uint32_t>              first_block_num;
    };
    get_info_results get_info(const get_info_params&) const;
 
@@ -1084,7 +1085,7 @@ FC_REFLECT(eosio::chain_apis::read_only::get_info_results,
            (head_block_id)(head_block_time)(head_block_producer)
            (virtual_block_cpu_limit)(virtual_block_net_limit)(block_cpu_limit)(block_net_limit)
            (server_version_string)(fork_db_head_block_num)(fork_db_head_block_id)(server_full_version_string)
-           (last_irreversible_block_time) )
+           (last_irreversible_block_time) (first_block_num) )
 FC_REFLECT(eosio::chain_apis::read_only::get_activated_protocol_features_params, (lower_bound)(upper_bound)(limit)(search_by_block_num)(reverse) )
 FC_REFLECT(eosio::chain_apis::read_only::get_activated_protocol_features_results, (activated_protocol_features)(more) )
 FC_REFLECT(eosio::chain_apis::read_only::get_block_params, (block_num_or_id))