Golang tdlog.Noticef函數代碼示例

// Read Linux system VM parameters and print performance configuration advice when necessary.
func linuxPerfAdvice() {
	readFileIntContent := func(filePath string) (contentInt int, err error) {
		content, err := ioutil.ReadFile(filePath)
		if err != nil {
			return
		}
		contentInt, err = strconv.Atoi(strings.TrimSpace(string(content)))
		return
	}
	swappiness, err := readFileIntContent("/proc/sys/vm/swappiness")
	if err != nil {
		tdlog.Notice("Non-fatal - unable to offer performance advice based on vm.swappiness.")
	} else if swappiness > 30 {
		tdlog.Noticef("System vm.swappiness is very high (%d), for optimium performance please lower it below 30.", swappiness)
	}
	dirtyRatio, err := readFileIntContent("/proc/sys/vm/dirty_ratio")
	if err != nil {
		tdlog.Notice("Non-fatal - unable to offer performance advice based on vm.dirty_ratio.")
	} else if dirtyRatio < 50 {
		tdlog.Noticef("System vm.dirty_ratio is very low (%d), for optimium performance please raise it above 50.", dirtyRatio)
	}
	dirtyBGRatio, err := readFileIntContent("/proc/sys/vm/dirty_background_ratio")
	if err != nil {
		tdlog.Notice("Non-fatal - unable to offer performance advice based on vm.dirty_background_ratio.")
	} else if dirtyBGRatio > 20 {
		tdlog.Noticef("System vm.dirty_background_ratio is very high (%d), for optimium performance please lower it below 20.", dirtyBGRatio)
	}
}

func Start(dir string, port int, tlsCrt, tlsKey, jwtPubKey, jwtPrivateKey string) {
	var err error
	HttpDB, err = db.OpenDB(dir)
	if err != nil {
		panic(err)
	}

	// These endpoints are always available and do not require JWT auth
	http.HandleFunc("/", Welcome)
	http.HandleFunc("/version", Version)
	http.HandleFunc("/memstats", MemStats)

	if jwtPrivateKey != "" {
		// JWT support
		ServeJWTEnabledEndpoints(jwtPubKey, jwtPrivateKey)
	} else {
		// No JWT
		ServeEndpoints()
	}

	if tlsCrt != "" {
		tdlog.Noticef("Will listen on all interfaces (HTTPS), port %d.", port)
		if err := http.ListenAndServeTLS(fmt.Sprintf(":%d", port), tlsCrt, tlsKey, nil); err != nil {
			tdlog.Panicf("Failed to start HTTPS service - %s", err)
		}
	} else {
		tdlog.Noticef("Will listen on all interfaces (HTTP), port %d.", port)
		http.ListenAndServe(fmt.Sprintf(":%d", port), nil)
	}
}

func RegisterWebCp() {
	if WebCp == "" || WebCp == "none" || WebCp == "no" || WebCp == "false" {
		tdlog.Noticef("Web control panel is disabled on your request")
		return
	}
	http.HandleFunc("/"+WebCp, handleWebCp)
	http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, r *http.Request) {
		w.Write(rice.MustFindBox("static/img").MustBytes("favicon.ico"))
	})
	http.Handle("/"+WebCp+"/css/", http.StripPrefix("/"+WebCp+"/css/", http.FileServer(rice.MustFindBox("static/css").HTTPBox())))
	http.Handle("/"+WebCp+"/js/", http.StripPrefix("/"+WebCp+"/js/", http.FileServer(rice.MustFindBox("static/js").HTTPBox())))
	tdlog.Noticef("Web control panel is accessible at /%s", WebCp)
}

// Copy this database into destination directory (for backup).
func (db *DB) Dump(dest string) error {
	db.schemaLock.Lock()
	defer db.schemaLock.Unlock()
	for _, col := range db.cols {
		if err := col.sync(); err != nil {
			return err
		}
	}
	cpFun := func(currPath string, info os.FileInfo, err error) error {
		if err != nil {
			return err
		}
		if info.IsDir() {
			relPath, err := filepath.Rel(db.path, currPath)
			if err != nil {
				return err
			}
			destDir := path.Join(dest, relPath)
			if err := os.MkdirAll(destDir, 0770); err != nil {
				return err
			}
			tdlog.Noticef("Dump: created directory %s", destDir)
		} else {
			src, err := os.Open(currPath)
			if err != nil {
				return err
			}
			relPath, err := filepath.Rel(db.path, currPath)
			if err != nil {
				return err
			}
			destPath := path.Join(dest, relPath)
			if _, fileExists := os.Open(destPath); fileExists == nil {
				return fmt.Errorf("Destination file %s already exists", destPath)
			}
			destFile, err := os.Create(destPath)
			if err != nil {
				return err
			}
			written, err := io.Copy(destFile, src)
			if err != nil {
				return err
			}
			tdlog.Noticef("Dump: copied file %s, size is %d", destPath, written)
		}
		return nil
	}
	return filepath.Walk(db.path, cpFun)
}

func ServeAuthTokenEndpoints(token string) {
	authToken = token
	// collection management (stop-the-world)
	http.HandleFunc("/create", authWrap(Create))
	http.HandleFunc("/rename", authWrap(Rename))
	http.HandleFunc("/drop", authWrap(Drop))
	http.HandleFunc("/all", authWrap(All))
	http.HandleFunc("/scrub", authWrap(Scrub))
	http.HandleFunc("/sync", authWrap(Sync))
	// query
	http.HandleFunc("/query", authWrap(Query))
	http.HandleFunc("/count", authWrap(Count))
	// document management
	http.HandleFunc("/insert", authWrap(Insert))
	http.HandleFunc("/get", authWrap(Get))
	http.HandleFunc("/getpage", authWrap(GetPage))
	http.HandleFunc("/update", authWrap(Update))
	http.HandleFunc("/delete", authWrap(Delete))
	http.HandleFunc("/approxdoccount", authWrap(ApproxDocCount))
	// index management (stop-the-world)
	http.HandleFunc("/index", authWrap(Index))
	http.HandleFunc("/indexes", authWrap(Indexes))
	http.HandleFunc("/unindex", authWrap(Unindex))
	// misc
	http.HandleFunc("/shutdown", authWrap(Shutdown))
	http.HandleFunc("/dump", authWrap(Dump))

	tdlog.Noticef("API endpoints now require the 'Authorization: token' header.")
}

// Delete a document.
func (col *Col) Delete(id int) error {
	col.db.schemaLock.RLock()
	part := col.parts[id%col.db.numParts]

	// Place lock, read back original document and delete document
	part.DataLock.Lock()
	originalB, err := part.Read(id)
	if err != nil {
		part.DataLock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	err = part.Delete(id)
	part.DataLock.Unlock()
	if err != nil {
		col.db.schemaLock.RUnlock()
		return err
	}

	// Done with the collection data, next is to remove indexed values
	var original map[string]interface{}
	err = json.Unmarshal(originalB, &original)
	if err == nil {
		part.LockUpdate(id)
		col.unindexDoc(id, original)
		part.UnlockUpdate(id)
	} else {
		tdlog.Noticef("Will not attempt to unindex document %d during delete", id)
	}

	col.db.schemaLock.RUnlock()
	return nil
}

func Start(db *db.DB, port int) {
	HttpDB = db

	// collection management (stop-the-world)
	http.HandleFunc("/create", Create)
	http.HandleFunc("/rename", Rename)
	http.HandleFunc("/drop", Drop)
	http.HandleFunc("/all", All)
	http.HandleFunc("/scrub", Scrub)
	http.HandleFunc("/sync", Sync)
	// query
	http.HandleFunc("/query", Query)
	http.HandleFunc("/count", Count)
	// document management
	http.HandleFunc("/insert", Insert)
	http.HandleFunc("/get", Get)
	http.HandleFunc("/update", Update)
	http.HandleFunc("/delete", Delete)
	// index management (stop-the-world)
	http.HandleFunc("/index", Index)
	http.HandleFunc("/indexes", Indexes)
	http.HandleFunc("/unindex", Unindex)
	// misc (stop-the-world)
	http.HandleFunc("/shutdown", Shutdown)
	http.HandleFunc("/dump", Dump)
	// misc
	http.HandleFunc("/version", Version)
	http.HandleFunc("/memstats", MemStats)

	tdlog.Noticef("Will listen on all interfaces, port %d", port)
	http.ListenAndServe(fmt.Sprintf(":%d", port), nil)
}

// Delete a document.
func (col *Col) Delete(id int) error {
	part := col.parts[id%col.db.numParts]
	part.Lock.Lock()
	// Place lock, read back original document and delete document
	if err := part.LockUpdate(id); err != nil {
		part.Lock.Unlock()
		return fmt.Errorf("Document %d is locked for update, please try again later", id)
	}
	originalB, err := part.Read(id)
	if err != nil {
		part.UnlockUpdate(id)
		part.Lock.Unlock()
		return fmt.Errorf("Cannot delete %d: %v", id, err)
	}
	var original map[string]interface{}
	if err = json.Unmarshal(originalB, &original); err != nil {
		tdlog.Noticef("Will not attempt to unindex document %d during delete", id)
	}
	if err = part.Delete(id); err != nil {
		part.UnlockUpdate(id)
		part.Lock.Unlock()
		return err
	}
	// Done with the collection data, next is to remove indexed values
	part.Lock.Unlock()
	if original != nil {
		col.unindexDoc(id, original)
	}
	part.Lock.Lock()
	part.UnlockUpdate(id)
	part.Lock.Unlock()
	return nil
}

// Load all collection schema.
func (db *DB) load() error {
	// Create DB directory and PART_NUM_FILE if necessary
	var numPartsAssumed = false
	numPartsFilePath := path.Join(db.path, PART_NUM_FILE)
	if err := os.MkdirAll(db.path, 0777); err != nil {
		return err
	}
	if partNumFile, err := os.Stat(numPartsFilePath); err != nil {
		// The new database has as many partitions as number of CPUs recognized by OS
		if err := ioutil.WriteFile(numPartsFilePath, []byte(strconv.Itoa(runtime.NumCPU())), 0600); err != nil {
			return err
		}
		numPartsAssumed = true
	} else if partNumFile.IsDir() {
		return fmt.Errorf("Database config file %s is actually a directory, is database path correct?", PART_NUM_FILE)
	}
	// Get number of partitions from the text file
	if numParts, err := ioutil.ReadFile(numPartsFilePath); err != nil {
		return err
	} else if db.numParts, err = strconv.Atoi(strings.Trim(string(numParts), "\r\n ")); err != nil {
		return err
	}
	// Look for collection directories and open the collections
	db.cols = make(map[string]*Col)
	dirContent, err := ioutil.ReadDir(db.path)
	if err != nil {
		return err
	}
	for _, maybeColDir := range dirContent {
		if !maybeColDir.IsDir() {
			continue
		}
		if numPartsAssumed {
			return fmt.Errorf("Please manually repair database partition number config file %s", numPartsFilePath)
		}
		if db.cols[maybeColDir.Name()], err = OpenCol(db, maybeColDir.Name()); err != nil {
			return err
		}
	}
	// Synchronize data files at regular interval
	if db.autoSync == nil {
		db.autoSync = time.NewTicker(AUTO_SYNC_INTERVAL * time.Millisecond)
		go func() {
			for {
				select {
				case <-db.autoSync.C:
					if err := db.Sync(); err != nil {
						tdlog.Noticef("Background Auto-Sync on %s: Failed with error: %v", db.path, err)
					}
				case <-db.autoSyncStop:
					db.autoSync.Stop()
					return
				}
			}
		}()
	}
	return err
}

// Scrub a collection - fix corrupted documents and de-fragment free space.
func (db *DB) Scrub(name string) error {
	db.schemaLock.Lock()
	defer db.schemaLock.Unlock()
	if _, exists := db.cols[name]; !exists {
		return fmt.Errorf("Collection %s does not exist", name)
	} else if err := db.cols[name].sync(); err != nil {
		return err
	}
	// Prepare a temporary collection in file system
	tmpColName := fmt.Sprintf("scrub-%s-%d", name, time.Now().UnixNano())
	tmpColDir := path.Join(db.path, tmpColName)
	if err := os.MkdirAll(tmpColDir, 0777); err != nil {
		return err
	}
	// Mirror indexes from original collection
	for _, idxPath := range db.cols[name].indexPaths {
		if err := os.MkdirAll(path.Join(tmpColDir, strings.Join(idxPath, INDEX_PATH_SEP)), 0777); err != nil {
			return err
		}
	}
	// Iterate through all documents and put them into the temporary collection
	tmpCol, err := OpenCol(db, tmpColName)
	if err != nil {
		return err
	}
	db.cols[name].ForEachDoc(func(id int, doc []byte) bool {
		var docObj map[string]interface{}
		if err := json.Unmarshal([]byte(doc), &docObj); err != nil {
			// Skip corrupted document
			return true
		}
		if err := tmpCol.InsertRecovery(id, docObj); err != nil {
			tdlog.Noticef("Scrub %s: failed to insert back document %v", name, docObj)
		}
		return true
	})
	if err := tmpCol.close(); err != nil {
		return err
	}
	// Replace the original collection with the "temporary" one
	db.cols[name].close()
	if err := os.RemoveAll(path.Join(db.path, name)); err != nil {
		return err
	}
	if err := os.Rename(path.Join(db.path, tmpColName), path.Join(db.path, name)); err != nil {
		return err
	}
	if db.cols[name], err = OpenCol(db, name); err != nil {
		return err
	}
	return nil
}

// Update a document.
func (col *Col) Update(id int, doc map[string]interface{}) error {
	if doc == nil {
		return fmt.Errorf("Updating %d: input doc may not be nil", id)
	}
	docJS, err := json.Marshal(doc)
	if err != nil {
		return err
	}
	col.db.schemaLock.RLock()
	part := col.parts[id%col.db.numParts]
	part.Lock.Lock()
	// Place lock, read back original document and update
	if err := part.LockUpdate(id); err != nil {
		part.Lock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	originalB, err := part.Read(id)
	if err != nil {
		part.UnlockUpdate(id)
		part.Lock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	var original map[string]interface{}
	if err = json.Unmarshal(originalB, &original); err != nil {
		tdlog.Noticef("Will not attempt to unindex document %d during update", id)
	}
	if err = part.Update(id, []byte(docJS)); err != nil {
		part.UnlockUpdate(id)
		part.Lock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	// Done with the collection data, next is to maintain indexed values
	part.Lock.Unlock()
	if original != nil {
		col.unindexDoc(id, original)
	}
	col.indexDoc(id, doc)
	// Done with the document
	part.Lock.Lock()
	part.UnlockUpdate(id)
	part.Lock.Unlock()
	col.db.schemaLock.RUnlock()
	return nil
}

// UpdateBytesFunc will update a document bytes.
// update func will get current document bytes and should return bytes of updated document;
// updated document should be valid JSON;
// provided buffer could be modified (reused for returned value);
// non-nil error will be propagated back and returned from UpdateBytesFunc.
func (col *Col) UpdateBytesFunc(id int, update func(origDoc []byte) (newDoc []byte, err error)) error {
	col.db.schemaLock.RLock()
	part := col.parts[id%col.db.numParts]

	// Place lock, read back original document and update
	part.DataLock.Lock()
	originalB, err := part.Read(id)
	if err != nil {
		part.DataLock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	var original map[string]interface{}
	json.Unmarshal(originalB, &original) // Unmarshal originalB before passing it to update
	docB, err := update(originalB)
	if err != nil {
		part.DataLock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	var doc map[string]interface{} // check if docB are valid JSON before Update
	if err = json.Unmarshal(docB, &doc); err != nil {
		part.DataLock.Unlock()
		col.db.schemaLock.RUnlock()
		return err
	}
	err = part.Update(id, docB)
	part.DataLock.Unlock()
	if err != nil {
		col.db.schemaLock.RUnlock()
		return err
	}

	// Done with the collection data, next is to maintain indexed values
	part.LockUpdate(id)
	if original != nil {
		col.unindexDoc(id, original)
	} else {
		tdlog.Noticef("Will not attempt to unindex document %d during update", id)
	}
	col.indexDoc(id, doc)
	// Done with the index
	part.UnlockUpdate(id)

	col.db.schemaLock.RUnlock()
	return nil
}

func ServeJWTEnabledEndpoints(jwtPubKey, jwtPrivateKey string) {
	var e error
	if publicKey, e = ioutil.ReadFile(jwtPubKey); e != nil {
		tdlog.Panicf("JWT: Failed to read public key file - %s", e)
	} else if privateKey, e = ioutil.ReadFile(jwtPrivateKey); e != nil {
		tdlog.Panicf("JWT: Failed to read private key file - %s", e)
	}

	jwtInitSetup()

	// collection management (stop-the-world)
	http.HandleFunc("/create", jwtWrap(Create))
	http.HandleFunc("/rename", jwtWrap(Rename))
	http.HandleFunc("/drop", jwtWrap(Drop))
	http.HandleFunc("/all", jwtWrap(All))
	http.HandleFunc("/scrub", jwtWrap(Scrub))
	http.HandleFunc("/sync", jwtWrap(Sync))
	// query
	http.HandleFunc("/query", jwtWrap(Query))
	http.HandleFunc("/count", jwtWrap(Count))
	// document management
	http.HandleFunc("/insert", jwtWrap(Insert))
	http.HandleFunc("/get", jwtWrap(Get))
	http.HandleFunc("/getpage", jwtWrap(GetPage))
	http.HandleFunc("/update", jwtWrap(Update))
	http.HandleFunc("/delete", jwtWrap(Delete))
	http.HandleFunc("/approxdoccount", jwtWrap(ApproxDocCount))
	// index management (stop-the-world)
	http.HandleFunc("/index", jwtWrap(Index))
	http.HandleFunc("/indexes", jwtWrap(Indexes))
	http.HandleFunc("/unindex", jwtWrap(Unindex))
	// misc
	http.HandleFunc("/shutdown", jwtWrap(Shutdown))
	http.HandleFunc("/dump", jwtWrap(Dump))
	// does not require JWT auth
	http.HandleFunc("/getjwt", getJWT)
	http.HandleFunc("/checkjwt", checkJWT)

	tdlog.Noticef("JWT is enabled. API endpoints require JWT authorization.")
}

func main() {
	var err error
	var defaultMaxprocs int
	if defaultMaxprocs, err = strconv.Atoi(os.Getenv("GOMAXPROCS")); err != nil {
		defaultMaxprocs = runtime.NumCPU()
	}

	// Parse CLI parameters
	var mode, dir string
	var port, maxprocs int
	var profile bool
	flag.StringVar(&mode, "mode", "", "[httpd|bench|bench2|example]")
	flag.StringVar(&dir, "dir", "", "(HTTP API) database directory")
	flag.IntVar(&port, "port", 8080, "(HTTP API) port number")
	flag.StringVar(&webcp.WebCp, "webcp", "admin", "(HTTP API) web control panel route (without leading slash)")
	flag.IntVar(&maxprocs, "gomaxprocs", defaultMaxprocs, "GOMAXPROCS")
	flag.IntVar(&benchSize, "benchsize", 400000, "Benchmark sample size")
	flag.BoolVar(&profile, "profile", false, "Write profiler results to prof.out")
	flag.BoolVar(&tdlog.VerboseLog, "verbose", false, "Turn verbose logging on/off")
	flag.BoolVar(&benchCleanup, "benchcleanup", true, "Whether to clean up (delete benchmark DB) after benchmark")
	flag.Parse()

	// User must specify a mode to run
	if mode == "" {
		flag.PrintDefaults()
		return
	}

	// Set appropriate GOMAXPROCS
	runtime.GOMAXPROCS(maxprocs)
	tdlog.Noticef("GOMAXPROCS is set to %d", maxprocs)
	if maxprocs < runtime.NumCPU() {
		tdlog.Noticef("GOMAXPROCS (%d) is less than number of CPUs (%d), this may reduce performance. You can change it via environment variable GOMAXPROCS or by passing CLI parameter -gomaxprocs", maxprocs, runtime.NumCPU())
	}

	// Start profiler if enabled
	if profile {
		resultFile, err := os.Create("perf.out")
		if err != nil {
			log.Panicf("Cannot create profiler result file %s", resultFile)
		}
		pprof.StartCPUProfile(resultFile)
		defer pprof.StopCPUProfile()
	}

	switch mode {
	case "httpd": // Run HTTP API server
		if dir == "" {
			tdlog.Panicf("Please specify database directory, for example -dir=/tmp/db")
		}
		if port == 0 {
			tdlog.Panicf("Please specify port number, for example -port=8080")
		}
		db, err := db.OpenDB(dir)
		if err != nil {
			panic(err)
		}
		httpapi.Start(db, port)
	case "example": // Run embedded usage examples
		embeddedExample()
	case "bench": // Benchmark scenarios
		benchmark()
	case "bench2":
		benchmark2()
	default:
		flag.PrintDefaults()
		return
	}
}

func main() {
	var err error
	var defaultMaxprocs int
	if defaultMaxprocs, err = strconv.Atoi(os.Getenv("GOMAXPROCS")); err != nil {
		defaultMaxprocs = runtime.NumCPU()
	}

	// Parse CLI parameters

	// General params
	var mode string
	var maxprocs int
	flag.StringVar(&mode, "mode", "", "Mandatory - specify the execution mode [httpd|bench|bench2|example]")
	flag.IntVar(&maxprocs, "gomaxprocs", defaultMaxprocs, "GOMAXPROCS")
	// Debug params
	var profile, debug bool
	flag.BoolVar(&tdlog.VerboseLog, "verbose", false, "Turn verbose logging on/off")
	flag.BoolVar(&profile, "profile", false, "Write profiler results to prof.out")
	flag.BoolVar(&debug, "debug", false, "Dump goroutine stack traces upon receiving interrupt signal")
	// HTTP mode params
	var dir string
	var bind string
	var port int
	var authToken string
	var tlsCrt, tlsKey string
	flag.StringVar(&dir, "dir", "", "(HTTP server) database directory")
	flag.StringVar(&bind, "bind", "", "(HTTP server) bind to IP address (all network interfaces by default)")
	flag.IntVar(&port, "port", 8080, "(HTTP server) port number")
	flag.StringVar(&tlsCrt, "tlscrt", "", "(HTTP server) TLS certificate (empty to disable TLS).")
	flag.StringVar(&tlsKey, "tlskey", "", "(HTTP server) TLS certificate key (empty to disable TLS).")
	flag.StringVar(&authToken, "authtoken", "", "(HTTP server) Only authorize requests carrying this token in 'Authorization: token TOKEN' header. (empty to disable)")

	// HTTP + JWT params
	var jwtPubKey, jwtPrivateKey string
	flag.StringVar(&jwtPubKey, "jwtpubkey", "", "(HTTP JWT server) Public key for signing tokens (empty to disable JWT)")
	flag.StringVar(&jwtPrivateKey, "jwtprivatekey", "", "(HTTP JWT server) Private key for decoding tokens (empty to disable JWT)")

	// Benchmark mode params
	flag.IntVar(&benchSize, "benchsize", 400000, "Benchmark sample size")
	flag.BoolVar(&benchCleanup, "benchcleanup", true, "Whether to clean up (delete benchmark DB) after benchmark")
	flag.Parse()

	// User must specify a mode to run
	if mode == "" {
		flag.PrintDefaults()
		os.Exit(1)
	}

	// Set appropriate GOMAXPROCS
	runtime.GOMAXPROCS(maxprocs)
	tdlog.Noticef("GOMAXPROCS is set to %d", maxprocs)

	// Performance advices
	if maxprocs < runtime.NumCPU() {
		tdlog.Noticef("GOMAXPROCS (%d) is less than number of CPUs (%d), this may reduce performance. You can change it via environment variable GOMAXPROCS or by passing CLI parameter -gomaxprocs", maxprocs, runtime.NumCPU())
	}
	linuxPerfAdvice()

	// Start profiler if enabled
	if profile {
		resultFile, err := os.Create("perf.out")
		if err != nil {
			tdlog.Noticef("Cannot create profiler result file %s", resultFile)
			os.Exit(1)
		}
		pprof.StartCPUProfile(resultFile)
		defer pprof.StopCPUProfile()
	}

	// Dump goroutine stacktraces upon receiving interrupt signal
	if debug {
		c := make(chan os.Signal, 1)
		signal.Notify(c, os.Interrupt)
		go func() {
			for range c {
				pprof.Lookup("goroutine").WriteTo(os.Stderr, 1)
			}
		}()
	}

	switch mode {
	case "httpd":
		// Run HTTP API server
		if dir == "" {
			tdlog.Notice("Please specify database directory, for example -dir=/tmp/db")
			os.Exit(1)
		}
		if port == 0 {
			tdlog.Notice("Please specify port number, for example -port=8080")
			os.Exit(1)
		}
		if tlsCrt != "" && tlsKey == "" || tlsKey != "" && tlsCrt == "" {
			tdlog.Notice("To enable HTTPS, please specify both RSA certificate and key file.")
			os.Exit(1)
		}
		if jwtPrivateKey != "" && jwtPubKey == "" || jwtPubKey != "" && jwtPrivateKey == "" {
			tdlog.Notice("To enable JWT, please specify RSA private and public key.")
			os.Exit(1)
		}
		httpapi.Start(dir, port, tlsCrt, tlsKey, jwtPubKey, jwtPrivateKey, bind, authToken)
//.........這裏部分代碼省略.........