Golang Block.Trusted方法代码示例

func get_blocks() {
	var bl *btc.Block
	BlocksInProgress = make(map[[32]byte]*one_bip)
	BlocksCached = make(map[uint32]*btc.Block)

	//fmt.Println("opening connections")
	DlStartTime = time.Now()
	BlocksComplete = TheBlockChain.BlockTreeEnd.Height
	BlocksIndex = BlocksComplete

	SetDoBlocks(true)
	ct := time.Now().Unix()
	lastdrop := ct
	laststat := ct
	TheBlockChain.DoNotSync = true
	var blks2do []*btc.Block
	for GetDoBlocks() {
		BlocksMutex.Lock()
		if BlocksComplete >= LastBlockHeight {
			BlocksMutex.Unlock()
			break
		}

		for {
			bl = BlocksCached[BlocksComplete+1]
			if bl == nil {
				break
			}
			BlocksComplete++
			if BlocksComplete > BlocksIndex {
				BlocksIndex = BlocksComplete
			}
			bl.Trusted = BlocksComplete <= TrustUpTo
			if OnlyStoreBlocks {
				TheBlockChain.Blocks.BlockAdd(BlocksComplete, bl)
			} else {
				blks2do = append(blks2do, bl)
			}
			atomic.AddUint64(&DlBytesProcesses, uint64(len(bl.Raw)))
			delete(BlocksCached, BlocksComplete)
			BlocksCachedSize -= uint(len(bl.Raw))
		}
		BlocksMutex.Unlock()

		if len(blks2do) > 0 {
			for idx := range blks2do {
				er, _, _ := TheBlockChain.CheckBlock(blks2do[idx])
				if er != nil {
					fmt.Println(er.Error())
					return
				}
				blks2do[idx].LastKnownHeight = BlocksComplete
				TheBlockChain.AcceptBlock(blks2do[idx])
			}
			blks2do = nil
		} else {
			TheBlockChain.Unspent.Idle()
			COUNTER("IDLE")
		}

		time.Sleep(1e8)

		ct = time.Now().Unix()

		if open_connection_count() > MaxNetworkConns {
			drop_slowest_peers()
		} else {
			// drop slowest peers once for awhile
			occ := MaxNetworkConns
			if occ > 0 {
				occ = 1200 / occ // For 20 open connections: drop one per minute
				if occ < 3 {
					occ = 3 // .. drop not more often then once sper 3 seconds
				}
				if ct-lastdrop > int64(occ) {
					lastdrop = ct
					drop_slowest_peers()
				}
			}
		}

		add_new_connections()

		if ct-laststat >= 5 {
			laststat = ct
			print_stats()
			usif_prompt()
		}
	}
}

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.")
}

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.")
}