github.com/klaytn/klaytn@v1.12.1/api/api_public_net.go (about)

     1  // Modifications Copyright 2019 The klaytn Authors
     2  // Copyright 2015 The go-ethereum Authors
     3  // This file is part of the go-ethereum library.
     4  //
     5  // The go-ethereum library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The go-ethereum library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  // This file is derived from internal/ethapi/api.go (2018/06/04).
    19  // Modified and improved for the klaytn development.
    20  
    21  package api
    22  
    23  import (
    24  	"fmt"
    25  
    26  	"github.com/klaytn/klaytn/common/hexutil"
    27  	"github.com/klaytn/klaytn/networks/p2p"
    28  )
    29  
    30  // PublicNetAPI offers network related RPC methods
    31  type PublicNetAPI struct {
    32  	net            p2p.Server
    33  	networkVersion uint64
    34  }
    35  
    36  // NewPublicNetAPI creates a new net API instance.
    37  func NewPublicNetAPI(net p2p.Server, networkVersion uint64) *PublicNetAPI {
    38  	return &PublicNetAPI{net, networkVersion}
    39  }
    40  
    41  // Listening returns an indication if the node is listening for network connections.
    42  func (s *PublicNetAPI) Listening() bool {
    43  	return true // always listening
    44  }
    45  
    46  // PeerCount returns the number of connected peers.
    47  func (s *PublicNetAPI) PeerCount() hexutil.Uint {
    48  	return hexutil.Uint(s.net.PeerCount())
    49  }
    50  
    51  // PeerCountByType returns the number of connected specific types of nodes.
    52  func (s *PublicNetAPI) PeerCountByType() map[string]uint {
    53  	return s.net.PeerCountByType()
    54  }
    55  
    56  // Version returns the current klaytn protocol version.
    57  func (s *PublicNetAPI) Version() string {
    58  	return fmt.Sprintf("%d", s.networkVersion)
    59  }
    60  
    61  // NetworkID returns the network identifier set by the command-line option --networkid.
    62  func (s *PublicNetAPI) NetworkID() uint64 {
    63  	return s.networkVersion
    64  }