6842aa006d
This merge commit adds the following code from the github.com/decred/dcrutil package into a new github.com/decred/dcrd/dcrutil package: * Address handling * Amount type * AppDataDir func * bitflags functions * Block wrapper type * Hash160 func * Tx wrapper type * WIF type as well as all tests for this code. The old github.com/decred/dcrutil/hdkeychain package has also been merged and moved to github.com/decred/dcrd/dcrutil/hdkeychain. dcrd packages have been updated to use the new packages and the dep files have been updated for this change.
85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Copyright (c) 2016 The btcsuite developers
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// Copyright (c) 2016 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package progresslog
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import (
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"sync"
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"time"
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"github.com/btcsuite/btclog"
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"github.com/decred/dcrd/dcrutil"
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"github.com/decred/dcrd/wire"
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)
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// BlockProgressLogger provides periodic logging for other services in order
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// to show users progress of certain "actions" involving some or all current
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// blocks. Ex: syncing to best chain, indexing all blocks, etc.
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type BlockProgressLogger struct {
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receivedLogBlocks int64
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receivedLogTx int64
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lastBlockLogTime time.Time
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subsystemLogger btclog.Logger
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progressAction string
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sync.Mutex
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}
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// NewBlockProgressLogger returns a new block progress logger.
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// The progress message is templated as follows:
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// {progressAction} {numProcessed} {blocks|block} in the last {timePeriod}
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// ({numTxs}, height {lastBlockHeight}, {lastBlockTimeStamp})
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func NewBlockProgressLogger(progressMessage string, logger btclog.Logger) *BlockProgressLogger {
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return &BlockProgressLogger{
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lastBlockLogTime: time.Now(),
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progressAction: progressMessage,
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subsystemLogger: logger,
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}
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}
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// LogBlockHeight logs a new block height as an information message to show
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// progress to the user. In order to prevent spam, it limits logging to one
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// message every 10 seconds with duration and totals included.
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func (b *BlockProgressLogger) LogBlockHeight(block, parent *wire.MsgBlock) {
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b.Lock()
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defer b.Unlock()
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b.receivedLogBlocks++
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regularTxTreeValid := dcrutil.IsFlagSet16(block.Header.VoteBits,
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dcrutil.BlockValid)
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if regularTxTreeValid {
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b.receivedLogTx += int64(len(parent.Transactions))
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}
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b.receivedLogTx += int64(len(block.STransactions))
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now := time.Now()
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duration := now.Sub(b.lastBlockLogTime)
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if duration < time.Second*10 {
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return
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}
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// Truncate the duration to 10s of milliseconds.
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durationMillis := int64(duration / time.Millisecond)
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tDuration := 10 * time.Millisecond * time.Duration(durationMillis/10)
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// Log information about new block height.
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blockStr := "blocks"
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if b.receivedLogBlocks == 1 {
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blockStr = "block"
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}
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txStr := "transactions"
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if b.receivedLogTx == 1 {
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txStr = "transaction"
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}
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b.subsystemLogger.Infof("%s %d %s in the last %s (%d %s, height %d, %s)",
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b.progressAction, b.receivedLogBlocks, blockStr, tDuration,
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b.receivedLogTx, txStr, block.Header.Height,
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block.Header.Timestamp)
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b.receivedLogBlocks = 0
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b.receivedLogTx = 0
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b.lastBlockLogTime = now
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}
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