9772626dd8
This commit is a first pass at improving the logging. It changes a number of things to improve the readability of the output. The biggest addition is message summaries for each message type when using the debug logging level. There is sitll more to do here such as allowing the level of each subsystem to be independently specified, syslog support, and allowing the logging level to be changed run-time.
98 lines
2.1 KiB
Go
98 lines
2.1 KiB
Go
// Copyright (c) 2013 Conformal Systems LLC.
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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 main
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import (
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"net"
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"net/http"
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_ "net/http/pprof"
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"os"
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"runtime"
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)
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var (
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cfg *config
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)
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// btcdMain is the real main function for btcd. It is necessary to work around
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// the fact that deferred functions do not run when os.Exit() is called.
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func btcdMain() error {
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// Initialize logging and setup deferred flushing to ensure all
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// outstanding messages are written on shutdown.
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loggers := setLogLevel(defaultLogLevel)
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defer func() {
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for _, logger := range loggers {
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logger.Flush()
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}
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}()
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// Load configuration and parse command line.
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tcfg, _, err := loadConfig()
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if err != nil {
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return err
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}
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cfg = tcfg
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// Change the logging level if needed.
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if cfg.DebugLevel != defaultLogLevel {
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loggers = setLogLevel(cfg.DebugLevel)
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}
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// See if we want to enable profiling.
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if cfg.Profile != "" {
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go func() {
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listenAddr := net.JoinHostPort("", cfg.Profile)
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log.Infof("BTCD: Profile server listening on %s", listenAddr)
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log.Errorf("%v", http.ListenAndServe(listenAddr, nil))
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}()
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}
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// Perform upgrades to btcd as new versions require it.
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if err := doUpgrades(); err != nil {
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log.Errorf("%v", err)
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return err
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}
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// Load the block database.
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db, err := loadBlockDB()
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if err != nil {
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log.Errorf("%v", err)
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return err
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}
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defer db.Close()
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// Ensure the database is sync'd and closed on Ctrl+C.
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addInterruptHandler(func() {
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db.RollbackClose()
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})
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// Create server and start it.
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listenAddr := net.JoinHostPort("", cfg.Port)
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server, err := newServer(listenAddr, db, activeNetParams.btcnet)
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if err != nil {
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log.Errorf("Unable to start server on %v", listenAddr)
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log.Errorf("%v", err)
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return err
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}
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server.Start()
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server.WaitForShutdown()
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return nil
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}
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func main() {
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// Use all processor cores.
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runtime.GOMAXPROCS(runtime.NumCPU())
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// Up some limits.
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if err := setLimits(); err != nil {
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os.Exit(1)
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}
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// Work around defer not working after os.Exit()
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if err := btcdMain(); err != nil {
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os.Exit(1)
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}
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}
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