grpclog/grpclog.go

/*
 *
 * Copyright 2017, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

// Package grpclog defines logging for grpc.
//
// All logs in transport package only go to verbose level 2.
// All logs in other packages in grpc are logged in spite of the verbosity level.
//
// In the default logger,
// severity level can be set by environment variable GRPC_GO_LOG_SEVERITY_LEVEL,
// verbosity level can be set by GRPC_GO_LOG_VERBOSITY_LEVEL.
package grpclog // import "google.golang.org/grpc/grpclog"

import "os"

var logger = newLoggerV2()

// V reports whether verbosity level l is at least the requested verbose level.
func V(l int) bool {
	return logger.V(l)
}

// Info logs to the INFO log.
func Info(args ...interface{}) {
	logger.Info(args...)
}

// Infof logs to the INFO log. Arguments are handled in the manner of fmt.Printf.
func Infof(format string, args ...interface{}) {
	logger.Infof(format, args...)
}

// Infoln logs to the INFO log. Arguments are handled in the manner of fmt.Println.
func Infoln(args ...interface{}) {
	logger.Infoln(args...)
}

// Warning logs to the WARNING log.
func Warning(args ...interface{}) {
	logger.Warning(args...)
}

// Warningf logs to the WARNING log. Arguments are handled in the manner of fmt.Printf.
func Warningf(format string, args ...interface{}) {
	logger.Warningf(format, args...)
}

// Warningln logs to the WARNING log. Arguments are handled in the manner of fmt.Println.
func Warningln(args ...interface{}) {
	logger.Warningln(args...)
}

// Error logs to the ERROR log.
func Error(args ...interface{}) {
	logger.Error(args...)
}

// Errorf logs to the ERROR log. Arguments are handled in the manner of fmt.Printf.
func Errorf(format string, args ...interface{}) {
	logger.Errorf(format, args...)
}

// Errorln logs to the ERROR log. Arguments are handled in the manner of fmt.Println.
func Errorln(args ...interface{}) {
	logger.Errorln(args...)
}

// Fatal logs to the FATAL log. Arguments are handled in the manner of fmt.Print.
// It calls os.Exit() with exit code 1.
func Fatal(args ...interface{}) {
	logger.Fatal(args...)
	// Make sure fatal logs will exit.
	os.Exit(1)
}

// Fatalf logs to the FATAL log. Arguments are handled in the manner of fmt.Printf.
// It calles os.Exit() with exit code 1.
func Fatalf(format string, args ...interface{}) {
	logger.Fatalf(format, args...)
	// Make sure fatal logs will exit.
	os.Exit(1)
}

// Fatalln logs to the FATAL log. Arguments are handled in the manner of fmt.Println.
// It calle os.Exit()) with exit code 1.
func Fatalln(args ...interface{}) {
	logger.Fatalln(args...)
	// Make sure fatal logs will exit.
	os.Exit(1)
}

// Print prints to the logger. Arguments are handled in the manner of fmt.Print.
// Deprecated: use Info.
func Print(args ...interface{}) {
	logger.Info(args...)
}

// Printf prints to the logger. Arguments are handled in the manner of fmt.Printf.
// Deprecated: use Infof.
func Printf(format string, args ...interface{}) {
	logger.Infof(format, args...)
}

// Println prints to the logger. Arguments are handled in the manner of fmt.Println.
// Deprecated: use Infoln.
func Println(args ...interface{}) {
	logger.Infoln(args...)
}