From 78745551c077bf54151202138c2629f288769561 Mon Sep 17 00:00:00 2001
From: Determinant <tederminant@gmail.com>
Date: Tue, 15 Sep 2020 23:55:34 -0400
Subject: WIP: geth-tavum

---
 consensus/ethash/api.go | 30 ++++++++++++------------------
 1 file changed, 12 insertions(+), 18 deletions(-)

(limited to 'consensus/ethash/api.go')

diff --git a/consensus/ethash/api.go b/consensus/ethash/api.go
index 34ed386..c983504 100644
--- a/consensus/ethash/api.go
+++ b/consensus/ethash/api.go
@@ -20,15 +20,15 @@ import (
 	"errors"
 
 	"github.com/ava-labs/coreth/core/types"
-	"github.com/ava-labs/go-ethereum/common"
-	"github.com/ava-labs/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/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.
+	ethash *Ethash
 }
 
 // GetWork returns a work package for external miner.
@@ -39,7 +39,7 @@ type API struct {
 //   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 {
+	if api.ethash.remote == nil {
 		return [4]string{}, errors.New("not supported")
 	}
 
@@ -47,13 +47,11 @@ func (api *API) GetWork() ([4]string, error) {
 		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:
+	case api.ethash.remote.fetchWorkCh <- &sealWork{errc: errc, res: workCh}:
+	case <-api.ethash.remote.exitCh:
 		return [4]string{}, errEthashStopped
 	}
-
 	select {
 	case work := <-workCh:
 		return work, nil
@@ -66,23 +64,21 @@ func (api *API) GetWork() ([4]string, error) {
 // 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 {
+	if api.ethash.remote == nil {
 		return false
 	}
 
 	var errc = make(chan error, 1)
-
 	select {
-	case api.ethash.submitWorkCh <- &mineResult{
+	case api.ethash.remote.submitWorkCh <- &mineResult{
 		nonce:     nonce,
 		mixDigest: digest,
 		hash:      hash,
 		errc:      errc,
 	}:
-	case <-api.ethash.exitCh:
+	case <-api.ethash.remote.exitCh:
 		return false
 	}
-
 	err := <-errc
 	return err == nil
 }
@@ -94,21 +90,19 @@ func (api *API) SubmitWork(nonce types.BlockNonce, hash, digest common.Hash) boo
 // 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 {
+	if api.ethash.remote == nil {
 		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:
+	case api.ethash.remote.submitRateCh <- &hashrate{done: done, rate: uint64(rate), id: id}:
+	case <-api.ethash.remote.exitCh:
 		return false
 	}
 
 	// Block until hash rate submitted successfully.
 	<-done
-
 	return true
 }
 
-- 
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