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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

// +build !opencl

package eth

import (
    "errors"
    "fmt"

    "github.com/ethereum/go-ethereum/logger"
    "github.com/ethereum/go-ethereum/logger/glog"
)

const disabledInfo = "Set GO_OPENCL and re-build to enable."

func (s *FullNodeService) StartMining(threads int, gpus string) error {
    eb, err := s.Etherbase()
    if err != nil {
        err = fmt.Errorf("Cannot start mining without etherbase address: %v", err)
        glog.V(logger.Error).Infoln(err)
        return err
    }

    if gpus != "" {
        return errors.New("GPU mining disabled. " + disabledInfo)
    }

    // CPU mining
    go s.miner.Start(eb, threads)
    return nil
}

func GPUBench(gpuid uint64) {
    fmt.Println("GPU mining disabled. " + disabledInfo)
}

func PrintOpenCLDevices() {
    fmt.Println("OpenCL disabled. " + disabledInfo)
}