コード例 #1
0
ファイル: init.go プロジェクト: 22140505/gocoin
func import_blockchain(dir string) {
	trust := !textui.AskYesNo("Do you want to verify scripts while importing (will be slow)?")

	BlockDatabase := blockdb.NewBlockDB(dir, common.Magic)
	chain := btc.NewChain(common.GocoinHomeDir, common.GenesisBlock, false)

	var bl *btc.Block
	var er error
	var dat []byte
	var totbytes, perbytes uint64

	chain.DoNotSync = true

	fmt.Println("Be patient while importing Satoshi's database... ")
	start := time.Now().UnixNano()
	prv := start
	for {
		now := time.Now().UnixNano()
		if now-prv >= 10e9 {
			stat(now-start, now-prv, totbytes, perbytes, chain.BlockTreeEnd.Height)
			prv = now // show progress each 10 seconds
			perbytes = 0
		}

		dat, er = BlockDatabase.FetchNextBlock()
		if dat == nil || er != nil {
			println("END of DB file")
			break
		}

		bl, er = btc.NewBlock(dat[:])
		if er != nil {
			println("Block inconsistent:", er.Error())
			break
		}

		bl.Trusted = trust

		er, _, _ = chain.CheckBlock(bl)

		if er != nil {
			if er.Error() != "Genesis" {
				println("CheckBlock failed:", er.Error())
				//os.Exit(1) // Such a thing should not happen, so let's better abort here.
			}
			continue
		}

		er = chain.AcceptBlock(bl)
		if er != nil {
			println("AcceptBlock failed:", er.Error())
			//os.Exit(1) // Such a thing should not happen, so let's better abort here.
		}

		totbytes += uint64(len(bl.Raw))
		perbytes += uint64(len(bl.Raw))
	}

	stop := time.Now().UnixNano()
	stat(stop-start, stop-prv, totbytes, perbytes, chain.BlockTreeEnd.Height)

	fmt.Println("Satoshi's database import finished in", (stop-start)/1e9, "seconds")

	fmt.Println("Now saving the new database...")
	chain.Sync()
	chain.Save()
	chain.Close()
	fmt.Println("Database saved. No more imports should be needed.")
	fmt.Println("It is advised to close and restart the node now, to free some mem.")
}
コード例 #2
0
ファイル: init.go プロジェクト: spartacusX/gocoin
func import_blockchain(dir string) {
	trust := !ask_yes_no("Go you want to verify scripts while importing (will be slow)?")

	BlockDatabase := blockdb.NewBlockDB(dir, Magic)
	chain := btc.NewChain(GocoinHomeDir, GenesisBlock, false)

	var bl *btc.Block
	var er error
	var dat []byte
	var totbytes uint64

	chain.DoNotSync = true

	fmt.Println("Be patient while importing Satoshi's database... ")
	start := time.Now().UnixNano()
	prv := start
	for {
		now := time.Now().UnixNano()
		if now-prv >= 10e9 {
			prv = now // show progress each 10 seconds
			stat(now-start, totbytes, chain.BlockTreeEnd.Height)
		}

		dat, er = BlockDatabase.FetchNextBlock()
		if dat == nil || er != nil {
			println("END of DB file")
			break
		}

		bl, er = btc.NewBlock(dat[:])
		if er != nil {
			println("Block inconsistent:", er.Error())
			break
		}

		bl.Trusted = trust

		er, _, _ = chain.CheckBlock(bl)
		if er != nil {
			println("CheckBlock failed:", er.Error())
			continue
		}

		er = chain.AcceptBlock(bl)
		if er != nil {
			println("AcceptBlock failed:", er.Error())
			continue
		}

		totbytes += uint64(len(bl.Raw))
	}

	stop := time.Now().UnixNano()
	stat(stop-start, totbytes, chain.BlockTreeEnd.Height)

	fmt.Println("Satoshi's database import finished in", (stop-start)/1e9, "seconds")

	fmt.Println("Now saving the new database...")
	chain.Sync()
	chain.Close()
	fmt.Println("Database saved. No more imports should be needed.")
}