aboutsummaryrefslogtreecommitdiff
path: root/consensus/ethash/api.go
diff options
context:
space:
mode:
authorDeterminant <[email protected]>2020-07-30 14:18:44 -0400
committerDeterminant <[email protected]>2020-07-30 14:18:44 -0400
commit0444e66f640999c15496066637841efcc0433934 (patch)
treec19aec2dced2e9129c880c19c52ca0f87b3d62f6 /consensus/ethash/api.go
parentcffa0954bbdb43821d1b71d00f99fb705cecd25b (diff)
parent1f49826de2bb8bb4f5f99f69fd2beb039b1172d9 (diff)
Merge branch 'multi-coin'
Diffstat (limited to 'consensus/ethash/api.go')
-rw-r--r--consensus/ethash/api.go118
1 files changed, 118 insertions, 0 deletions
diff --git a/consensus/ethash/api.go b/consensus/ethash/api.go
new file mode 100644
index 0000000..34ed386
--- /dev/null
+++ b/consensus/ethash/api.go
@@ -0,0 +1,118 @@
+// Copyright 2018 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/>.
+
+package ethash
+
+import (
+ "errors"
+
+ "github.com/ava-labs/coreth/core/types"
+ "github.com/ava-labs/go-ethereum/common"
+ "github.com/ava-labs/go-ethereum/common/hexutil"
+)
+
+var errEthashStopped = errors.New("ethash stopped")
+
+// API exposes ethash related methods for the RPC interface.
+type API struct {
+ ethash *Ethash // Make sure the mode of ethash is normal.
+}
+
+// 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
+// result[3] - hex encoded block number
+func (api *API) GetWork() ([4]string, error) {
+ if api.ethash.config.PowMode != ModeNormal && api.ethash.config.PowMode != ModeTest {
+ return [4]string{}, errors.New("not supported")
+ }
+
+ var (
+ workCh = make(chan [4]string, 1)
+ errc = make(chan error, 1)
+ )
+
+ select {
+ case api.ethash.fetchWorkCh <- &sealWork{errc: errc, res: workCh}:
+ case <-api.ethash.exitCh:
+ return [4]string{}, errEthashStopped
+ }
+
+ select {
+ case work := <-workCh:
+ return work, nil
+ case err := <-errc:
+ return [4]string{}, err
+ }
+}
+
+// SubmitWork can be used by external miner to submit their POW solution.
+// It returns an indication if the work was accepted.
+// Note either an invalid solution, a stale work a non-existent work will return false.
+func (api *API) SubmitWork(nonce types.BlockNonce, hash, digest common.Hash) bool {
+ if api.ethash.config.PowMode != ModeNormal && api.ethash.config.PowMode != ModeTest {
+ return false
+ }
+
+ var errc = make(chan error, 1)
+
+ select {
+ case api.ethash.submitWorkCh <- &mineResult{
+ nonce: nonce,
+ mixDigest: digest,
+ hash: hash,
+ errc: errc,
+ }:
+ case <-api.ethash.exitCh:
+ return false
+ }
+
+ err := <-errc
+ return err == nil
+}
+
+// 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 (api *API) SubmitHashRate(rate hexutil.Uint64, id common.Hash) bool {
+ if api.ethash.config.PowMode != ModeNormal && api.ethash.config.PowMode != ModeTest {
+ return false
+ }
+
+ var done = make(chan struct{}, 1)
+
+ select {
+ case api.ethash.submitRateCh <- &hashrate{done: done, rate: uint64(rate), id: id}:
+ case <-api.ethash.exitCh:
+ return false
+ }
+
+ // Block until hash rate submitted successfully.
+ <-done
+
+ return true
+}
+
+// GetHashrate returns the current hashrate for local CPU miner and remote miner.
+func (api *API) GetHashrate() uint64 {
+ return uint64(api.ethash.Hashrate())
+}