b628d72766
This changes the CI / release builds to use the latest Go version. It also upgrades golangci-lint to a newer version compatible with Go 1.19. In Go 1.19, godoc has gained official support for links and lists. The syntax for code blocks in doc comments has changed and now requires a leading tab character. gofmt adapts comments to the new syntax automatically, so there are a lot of comment re-formatting changes in this PR. We need to apply the new format in order to pass the CI lint stage with Go 1.19. With the linter upgrade, I have decided to disable 'gosec' - it produces too many false-positive warnings. The 'deadcode' and 'varcheck' linters have also been removed because golangci-lint warns about them being unmaintained. 'unused' provides similar coverage and we already have it enabled, so we don't lose much with this change.
114 lines
3.3 KiB
Go
114 lines
3.3 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package ethash
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import (
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"errors"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core/types"
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)
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var errEthashStopped = errors.New("ethash stopped")
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// API exposes ethash related methods for the RPC interface.
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type API struct {
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ethash *Ethash
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}
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// GetWork returns a work package for external miner.
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//
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// The work package consists of 3 strings:
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//
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// result[0] - 32 bytes hex encoded current block header pow-hash
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// result[1] - 32 bytes hex encoded seed hash used for DAG
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// result[2] - 32 bytes hex encoded boundary condition ("target"), 2^256/difficulty
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// result[3] - hex encoded block number
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func (api *API) GetWork() ([4]string, error) {
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if api.ethash.remote == nil {
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return [4]string{}, errors.New("not supported")
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}
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var (
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workCh = make(chan [4]string, 1)
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errc = make(chan error, 1)
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)
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select {
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case api.ethash.remote.fetchWorkCh <- &sealWork{errc: errc, res: workCh}:
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case <-api.ethash.remote.exitCh:
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return [4]string{}, errEthashStopped
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}
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select {
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case work := <-workCh:
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return work, nil
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case err := <-errc:
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return [4]string{}, err
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}
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}
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// SubmitWork can be used by external miner to submit their POW solution.
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// It returns an indication if the work was accepted.
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// Note either an invalid solution, a stale work a non-existent work will return false.
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func (api *API) SubmitWork(nonce types.BlockNonce, hash, digest common.Hash) bool {
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if api.ethash.remote == nil {
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return false
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}
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var errc = make(chan error, 1)
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select {
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case api.ethash.remote.submitWorkCh <- &mineResult{
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nonce: nonce,
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mixDigest: digest,
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hash: hash,
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errc: errc,
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}:
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case <-api.ethash.remote.exitCh:
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return false
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}
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err := <-errc
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return err == nil
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}
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// SubmitHashrate can be used for remote miners to submit their hash rate.
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// This enables the node to report the combined hash rate of all miners
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// which submit work through this node.
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//
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// It accepts the miner hash rate and an identifier which must be unique
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// between nodes.
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func (api *API) SubmitHashrate(rate hexutil.Uint64, id common.Hash) bool {
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if api.ethash.remote == nil {
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return false
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}
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var done = make(chan struct{}, 1)
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select {
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case api.ethash.remote.submitRateCh <- &hashrate{done: done, rate: uint64(rate), id: id}:
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case <-api.ethash.remote.exitCh:
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return false
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}
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// Block until hash rate submitted successfully.
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<-done
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return true
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}
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// GetHashrate returns the current hashrate for local CPU miner and remote miner.
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func (api *API) GetHashrate() uint64 {
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return uint64(api.ethash.Hashrate())
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}
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