all: finish integrating Go ethash, delete C++ vendor

4 files changed, 12 insertions, 11 deletions

diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index bf5e81d45..cc6d3ac6a 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -95,6 +95,7 @@ func init() {
 		utils.EthashCachesInMemoryFlag,
 		utils.EthashCachesOnDiskFlag,
 		utils.EthashDatasetDirFlag,
+		utils.EthashDatasetsInMemoryFlag,
 		utils.EthashDatasetsOnDiskFlag,
 		utils.FastSyncFlag,
 		utils.LightModeFlag,
@@ -111,7 +112,6 @@ func init() {
 		utils.GasPriceFlag,
 		utils.MinerThreadsFlag,
 		utils.MiningEnabledFlag,
-		utils.AutoDAGFlag,
 		utils.TargetGasLimitFlag,
 		utils.NATFlag,
 		utils.NoDiscoverFlag,
diff --git a/cmd/geth/misccmd.go b/cmd/geth/misccmd.go
index 077f1ad11..073c36beb 100644
--- a/cmd/geth/misccmd.go
+++ b/cmd/geth/misccmd.go
@@ -25,10 +25,10 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/ethereum/ethash"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/params"
+	"github.com/ethereum/go-ethereum/pow"
 	"gopkg.in/urfave/cli.v1"
 )
 
@@ -87,7 +87,7 @@ func makedag(ctx *cli.Context) error {
 				utils.Fatalf("Can't find dir")
 			}
 			fmt.Println("making DAG, this could take awhile...")
-			ethash.MakeDAG(blockNum, dir)
+			pow.MakeDataset(blockNum, dir)
 		}
 	default:
 		wrongArgs()
diff --git a/cmd/geth/usage.go b/cmd/geth/usage.go
index 34910daa5..74768f507 100644
--- a/cmd/geth/usage.go
+++ b/cmd/geth/usage.go
@@ -84,6 +84,7 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.EthashCachesInMemoryFlag,
 			utils.EthashCachesOnDiskFlag,
 			utils.EthashDatasetDirFlag,
+			utils.EthashDatasetsInMemoryFlag,
 			utils.EthashDatasetsOnDiskFlag,
 		},
 	},
@@ -141,7 +142,6 @@ var AppHelpFlagGroups = []flagGroup{
 		Flags: []cli.Flag{
 			utils.MiningEnabledFlag,
 			utils.MinerThreadsFlag,
-			utils.AutoDAGFlag,
 			utils.EtherbaseFlag,
 			utils.TargetGasLimitFlag,
 			utils.GasPriceFlag,
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index b92be8464..38c90d801 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -132,9 +132,14 @@ var (
 		Name:  "ethash.dagdir",
 		Usage: "Directory to store the ethash mining DAGs (default = inside home folder)",
 	}
+	EthashDatasetsInMemoryFlag = cli.IntFlag{
+		Name:  "ethash.dagsinmem",
+		Usage: "Number of recent ethash mining DAGs to keep in memory (1+GB each)",
+		Value: 1,
+	}
 	EthashDatasetsOnDiskFlag = cli.IntFlag{
 		Name:  "ethash.dagsondisk",
-		Usage: "Number of ethash mining DAGs to keep on disk (1+GB each)",
+		Usage: "Number of recent ethash mining DAGs to keep on disk (1+GB each)",
 		Value: 2,
 	}
 	NetworkIdFlag = cli.IntFlag{
@@ -207,10 +212,6 @@ var (
 		Usage: "Target gas limit sets the artificial target gas floor for the blocks to mine",
 		Value: params.GenesisGasLimit.Uint64(),
 	}
-	AutoDAGFlag = cli.BoolFlag{
-		Name:  "autodag",
-		Usage: "Enable automatic DAG pregeneration",
-	}
 	EtherbaseFlag = cli.StringFlag{
 		Name:  "etherbase",
 		Usage: "Public address for block mining rewards (default = first account created)",
@@ -809,8 +810,8 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
 		EthashCachesInMem:       ctx.GlobalInt(EthashCachesInMemoryFlag.Name),
 		EthashCachesOnDisk:      ctx.GlobalInt(EthashCachesOnDiskFlag.Name),
 		EthashDatasetDir:        MakeEthashDatasetDir(ctx),
+		EthashDatasetsInMem:     ctx.GlobalInt(EthashDatasetsInMemoryFlag.Name),
 		EthashDatasetsOnDisk:    ctx.GlobalInt(EthashDatasetsOnDiskFlag.Name),
-		AutoDAG:                 ctx.GlobalBool(AutoDAGFlag.Name) || ctx.GlobalBool(MiningEnabledFlag.Name),
 		EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name),
 	}
 
@@ -982,7 +983,7 @@ func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chai
 
 	seal := pow.PoW(pow.FakePow{})
 	if !ctx.GlobalBool(FakePoWFlag.Name) {
-		seal = pow.NewFullEthash("", 1, 0, "", 0)
+		seal = pow.NewFullEthash("", 1, 0, "", 1, 0)
 	}
 	chain, err = core.NewBlockChain(chainDb, chainConfig, seal, new(event.TypeMux), vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)})
 	if err != nil {