// Copyright 2015 The go-ethereum Authors // This file is part of go-ethereum. // // go-ethereum is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // go-ethereum is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with go-ethereum. If not, see . package miner import ( "fmt" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/logger/glog" "github.com/ethereum/go-ethereum/rpc" ) // PublicMinerAPI provides an API to control the miner. // It offers only methods that operate on data that pose no security risk when it is publicly accessible. type PublicMinerAPI struct { miner *Miner agent *RemoteAgent } // NewPublicMinerAPI create a new PublicMinerAPI instance. func NewPublicMinerAPI(miner *Miner) *PublicMinerAPI { return &PublicMinerAPI{miner, NewRemoteAgent()} } // Mining returns an indication if this node is currently mining. func (s *PublicMinerAPI) Mining() bool { return s.miner.Mining() } // SubmitWork can be used by external miner to submit their POW solution. It returns an indication if the work was // accepted. Note, this is not an indication if the provided work was valid! func (s *PublicMinerAPI) SubmitWork(nonce rpc.HexNumber, solution, digest common.Hash) bool { return s.agent.SubmitWork(nonce.Uint64(), digest, solution) } // GetWork returns a work package for external miner. The work package consists of 3 strings // result[0], 32 bytes hex encoded current block header pow-hash // result[1], 32 bytes hex encoded seed hash used for DAG // result[2], 32 bytes hex encoded boundary condition ("target"), 2^256/difficulty func (s *PublicMinerAPI) GetWork() ([]string, error) { if !s.Mining() { s.miner.Start(s.miner.coinbase, 0) } if work, err := s.agent.GetWork(); err == nil { return work[:], nil } else { glog.Infof("%v\n", err) } return nil, fmt.Errorf("mining not ready") } // SubmitHashrate can be used for remote miners to submit their hash rate. This enables the node to report the combined // hash rate of all miners which submit work through this node. It accepts the miner hash rate and an identifier which // must be unique between nodes. func (s *PublicMinerAPI) SubmitHashrate(hashrate rpc.HexNumber, id common.Hash) bool { s.agent.SubmitHashrate(id, hashrate.Uint64()) return true }