101 lines
2.1 KiB
Go
101 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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// Show version at startup.
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log.Infof("Version %s", version())
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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("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: %v", listenAddr, 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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