From d4fd06c3dc6cd6d2dbd2bfebfee5bcb46a504851 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Wed, 22 Feb 2017 14:10:07 +0200
Subject: all: blidly swap out glog to our log15, logs need rework
---
logger/glog/LICENSE | 191 --------
logger/glog/README | 44 --
logger/glog/glog.go | 1223 ----------------------------------------------
logger/glog/glog_file.go | 128 -----
logger/glog/glog_test.go | 436 -----------------
logger/verbosity.go | 27 -
6 files changed, 2049 deletions(-)
delete mode 100644 logger/glog/LICENSE
delete mode 100644 logger/glog/README
delete mode 100644 logger/glog/glog.go
delete mode 100644 logger/glog/glog_file.go
delete mode 100644 logger/glog/glog_test.go
delete mode 100644 logger/verbosity.go
(limited to 'logger')
diff --git a/logger/glog/LICENSE b/logger/glog/LICENSE
deleted file mode 100644
index 37ec93a14..000000000
--- a/logger/glog/LICENSE
+++ /dev/null
@@ -1,191 +0,0 @@
-Apache License
-Version 2.0, January 2004
-http://www.apache.org/licenses/
-
-TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-1. Definitions.
-
-"License" shall mean the terms and conditions for use, reproduction, and
-distribution as defined by Sections 1 through 9 of this document.
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diff --git a/logger/glog/README b/logger/glog/README
deleted file mode 100644
index c7b1e60cc..000000000
--- a/logger/glog/README
+++ /dev/null
@@ -1,44 +0,0 @@
-glog
-====
-
-Leveled execution logs for Go.
-
-This is an efficient pure Go implementation of leveled logs in the
-manner of the open source C++ package
- http://code.google.com/p/google-glog
-
-By binding methods to booleans it is possible to use the log package
-without paying the expense of evaluating the arguments to the log.
-Through the -vmodule flag, the package also provides fine-grained
-control over logging at the file level.
-
-The comment from glog.go introduces the ideas:
-
- Package glog implements logging analogous to the Google-internal
- C++ INFO/ERROR/V setup. It provides functions Info, Warning,
- Error, Fatal, plus formatting variants such as Infof. It
- also provides V-style logging controlled by the -v and
- -vmodule=file=2 flags.
-
- Basic examples:
-
- glog.Info("Prepare to repel boarders")
-
- glog.Fatalf("Initialization failed: %s", err)
-
- See the documentation for the V function for an explanation
- of these examples:
-
- if glog.V(2) {
- glog.Info("Starting transaction...")
- }
-
- glog.V(2).Infoln("Processed", nItems, "elements")
-
-
-The repository contains an open source version of the log package
-used inside Google. The master copy of the source lives inside
-Google, not here. The code in this repo is for export only and is not itself
-under development. Feature requests will be ignored.
-
-Send bug reports to golang-nuts@googlegroups.com.
diff --git a/logger/glog/glog.go b/logger/glog/glog.go
deleted file mode 100644
index 0b33527c3..000000000
--- a/logger/glog/glog.go
+++ /dev/null
@@ -1,1223 +0,0 @@
-// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
-//
-// Copyright 2013 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
-// It provides functions Info, Warning, Error, Fatal, plus formatting variants such as
-// Infof. It also provides V-style logging controlled by the -v and -vmodule=file=2 flags.
-//
-// Basic examples:
-//
-// glog.Info("Prepare to repel boarders")
-//
-// glog.Fatalf("Initialization failed: %s", err)
-//
-// See the documentation for the V function for an explanation of these examples:
-//
-// if glog.V(2) {
-// glog.Info("Starting transaction...")
-// }
-//
-// glog.V(2).Infoln("Processed", nItems, "elements")
-//
-// Log output is buffered and written periodically using Flush. Programs
-// should call Flush before exiting to guarantee all log output is written.
-//
-// By default, all log statements write to files in a temporary directory.
-// This package provides several flags that modify this behavior.
-// As a result, flag.Parse must be called before any logging is done.
-//
-// -logtostderr=false
-// Logs are written to standard error instead of to files.
-// -alsologtostderr=false
-// Logs are written to standard error as well as to files.
-// -stderrthreshold=ERROR
-// Log events at or above this severity are logged to standard
-// error as well as to files.
-// -log_dir=""
-// Log files will be written to this directory instead of the
-// default temporary directory.
-//
-// Other flags provide aids to debugging.
-//
-// -log_backtrace_at=""
-// When set to a file and line number holding a logging statement,
-// such as
-// -log_backtrace_at=gopherflakes.go:234
-// a stack trace will be written to the Info log whenever execution
-// hits that statement. (Unlike with -vmodule, the ".go" must be
-// present.)
-// -v=0
-// Enable V-leveled logging at the specified level.
-// -vmodule=""
-// The syntax of the argument is a comma-separated list of pattern=N,
-// where pattern is a literal file name or "glob" pattern matching
-// and N is a V level. For instance,
-//
-// -vmodule=gopher.go=3
-// sets the V level to 3 in all Go files named "gopher.go".
-//
-// -vmodule=foo=3
-// sets V to 3 in all files of any packages whose import path ends in "foo".
-//
-// -vmodule=foo/*=3
-// sets V to 3 in all files of any packages whose import path contains "foo".
-package glog
-
-import (
- "bufio"
- "bytes"
- "errors"
- "fmt"
- "io"
- stdLog "log"
- "os"
- "regexp"
- "runtime"
- "strconv"
- "strings"
- "sync"
- "sync/atomic"
- "time"
-)
-
-// severity identifies the sort of log: info, warning etc. It also implements
-// the flag.Value interface. The -stderrthreshold flag is of type severity and
-// should be modified only through the flag.Value interface. The values match
-// the corresponding constants in C++.
-type severity int32 // sync/atomic int32
-
-// These constants identify the log levels in order of increasing severity.
-// A message written to a high-severity log file is also written to each
-// lower-severity log file.
-const (
- infoLog severity = iota
- warningLog
- errorLog
- fatalLog
- numSeverity = 4
-)
-
-const severityChar = "IWEF"
-
-var severityName = []string{
- infoLog: "INFO",
- warningLog: "WARNING",
- errorLog: "ERROR",
- fatalLog: "FATAL",
-}
-
-// these path prefixes are trimmed for display, but not when
-// matching vmodule filters.
-var trimPrefixes = []string{
- "/github.com/ethereum/go-ethereum",
- "/github.com/ethereum/ethash",
-}
-
-func trimToImportPath(file string) string {
- if root := strings.LastIndex(file, "src/"); root != 0 {
- file = file[root+3:]
- }
- return file
-}
-
-// SetV sets the global verbosity level
-func SetV(v int) {
- logging.verbosity.set(Level(v))
-}
-
-// SetToStderr sets the global output style
-func SetToStderr(toStderr bool) {
- logging.mu.Lock()
- logging.toStderr = toStderr
- logging.mu.Unlock()
-}
-
-// GetTraceLocation returns the global TraceLocation flag.
-func GetTraceLocation() *TraceLocation {
- return &logging.traceLocation
-}
-
-// GetVModule returns the global verbosity pattern flag.
-func GetVModule() *moduleSpec {
- return &logging.vmodule
-}
-
-// GetVerbosity returns the global verbosity level flag.
-func GetVerbosity() *Level {
- return &logging.verbosity
-}
-
-// get returns the value of the severity.
-func (s *severity) get() severity {
- return severity(atomic.LoadInt32((*int32)(s)))
-}
-
-// set sets the value of the severity.
-func (s *severity) set(val severity) {
- atomic.StoreInt32((*int32)(s), int32(val))
-}
-
-// String is part of the flag.Value interface.
-func (s *severity) String() string {
- return strconv.FormatInt(int64(*s), 10)
-}
-
-// Get is part of the flag.Value interface.
-func (s *severity) Get() interface{} {
- return *s
-}
-
-// Set is part of the flag.Value interface.
-func (s *severity) Set(value string) error {
- var threshold severity
- // Is it a known name?
- if v, ok := severityByName(value); ok {
- threshold = v
- } else {
- v, err := strconv.Atoi(value)
- if err != nil {
- return err
- }
- threshold = severity(v)
- }
- logging.stderrThreshold.set(threshold)
- return nil
-}
-
-func severityByName(s string) (severity, bool) {
- s = strings.ToUpper(s)
- for i, name := range severityName {
- if name == s {
- return severity(i), true
- }
- }
- return 0, false
-}
-
-// OutputStats tracks the number of output lines and bytes written.
-type OutputStats struct {
- lines int64
- bytes int64
-}
-
-// Lines returns the number of lines written.
-func (s *OutputStats) Lines() int64 {
- return atomic.LoadInt64(&s.lines)
-}
-
-// Bytes returns the number of bytes written.
-func (s *OutputStats) Bytes() int64 {
- return atomic.LoadInt64(&s.bytes)
-}
-
-// Stats tracks the number of lines of output and number of bytes
-// per severity level. Values must be read with atomic.LoadInt64.
-var Stats struct {
- Info, Warning, Error OutputStats
-}
-
-var severityStats = [numSeverity]*OutputStats{
- infoLog: &Stats.Info,
- warningLog: &Stats.Warning,
- errorLog: &Stats.Error,
-}
-
-// Level is exported because it appears in the arguments to V and is
-// the type of the v flag, which can be set programmatically.
-// It's a distinct type because we want to discriminate it from logType.
-// Variables of type level are only changed under logging.mu.
-// The -v flag is read only with atomic ops, so the state of the logging
-// module is consistent.
-
-// Level is treated as a sync/atomic int32.
-
-// Level specifies a level of verbosity for V logs. *Level implements
-// flag.Value; the -v flag is of type Level and should be modified
-// only through the flag.Value interface.
-type Level int32
-
-// get returns the value of the Level.
-func (l *Level) get() Level {
- return Level(atomic.LoadInt32((*int32)(l)))
-}
-
-// set sets the value of the Level.
-func (l *Level) set(val Level) {
- atomic.StoreInt32((*int32)(l), int32(val))
-}
-
-// String is part of the flag.Value interface.
-func (l *Level) String() string {
- return strconv.FormatInt(int64(*l), 10)
-}
-
-// Get is part of the flag.Value interface.
-func (l *Level) Get() interface{} {
- return *l
-}
-
-// Set is part of the flag.Value interface.
-func (l *Level) Set(value string) error {
- v, err := strconv.Atoi(value)
- if err != nil {
- return err
- }
- logging.mu.Lock()
- defer logging.mu.Unlock()
- logging.setVState(Level(v), logging.vmodule.filter, false)
- return nil
-}
-
-// moduleSpec represents the setting of the -vmodule flag.
-type moduleSpec struct {
- filter []modulePat
-}
-
-// modulePat contains a filter for the -vmodule flag.
-// It holds a verbosity level and a file pattern to match.
-type modulePat struct {
- pattern *regexp.Regexp
- level Level
-}
-
-func (m *moduleSpec) String() string {
- // Lock because the type is not atomic. TODO: clean this up.
- logging.mu.Lock()
- defer logging.mu.Unlock()
- var b bytes.Buffer
- for i, f := range m.filter {
- if i > 0 {
- b.WriteRune(',')
- }
- fmt.Fprintf(&b, "%s=%d", f.pattern, f.level)
- }
- return b.String()
-}
-
-// Get is part of the (Go 1.2) flag.Getter interface. It always returns nil for this flag type since the
-// struct is not exported.
-func (m *moduleSpec) Get() interface{} {
- return nil
-}
-
-var errVmoduleSyntax = errors.New("syntax error: expect comma-separated list of filename=N")
-
-// Syntax: -vmodule=recordio=2,file=1,gfs*=3
-func (m *moduleSpec) Set(value string) error {
- var filter []modulePat
- for _, pat := range strings.Split(value, ",") {
- if len(pat) == 0 {
- // Empty strings such as from a trailing comma can be ignored.
- continue
- }
- patLev := strings.Split(pat, "=")
- if len(patLev) != 2 || len(patLev[0]) == 0 || len(patLev[1]) == 0 {
- return errVmoduleSyntax
- }
- pattern := patLev[0]
- v, err := strconv.Atoi(patLev[1])
- if err != nil {
- return errors.New("syntax error: expect comma-separated list of filename=N")
- }
- if v < 0 {
- return errors.New("negative value for vmodule level")
- }
- if v == 0 {
- continue // Ignore. It's harmless but no point in paying the overhead.
- }
- // TODO: check syntax of filter?
- re, _ := compileModulePattern(pattern)
- filter = append(filter, modulePat{re, Level(v)})
- }
- logging.mu.Lock()
- defer logging.mu.Unlock()
- logging.setVState(logging.verbosity, filter, true)
- return nil
-}
-
-// compiles a vmodule pattern to a regular expression.
-func compileModulePattern(pat string) (*regexp.Regexp, error) {
- re := ".*"
- for _, comp := range strings.Split(pat, "/") {
- if comp == "*" {
- re += "(/.*)?"
- } else if comp != "" {
- // TODO: maybe return error if comp contains *
- re += "/" + regexp.QuoteMeta(comp)
- }
- }
- if !strings.HasSuffix(pat, ".go") {
- re += "/[^/]+\\.go"
- }
- return regexp.Compile(re + "$")
-}
-
-// traceLocation represents the setting of the -log_backtrace_at flag.
-type TraceLocation struct {
- file string
- line int
-}
-
-// isSet reports whether the trace location has been specified.
-// logging.mu is held.
-func (t *TraceLocation) isSet() bool {
- return t.line > 0
-}
-
-// match reports whether the specified file and line matches the trace location.
-// The argument file name is the full path, not the basename specified in the flag.
-// logging.mu is held.
-func (t *TraceLocation) match(file string, line int) bool {
- if t.line != line {
- return false
- }
- if i := strings.LastIndex(file, "/"); i >= 0 {
- file = file[i+1:]
- }
- return t.file == file
-}
-
-func (t *TraceLocation) String() string {
- // Lock because the type is not atomic. TODO: clean this up.
- logging.mu.Lock()
- defer logging.mu.Unlock()
- return fmt.Sprintf("%s:%d", t.file, t.line)
-}
-
-// Get is part of the (Go 1.2) flag.Getter interface. It always returns nil for this flag type since the
-// struct is not exported
-func (t *TraceLocation) Get() interface{} {
- return nil
-}
-
-var errTraceSyntax = errors.New("syntax error: expect file.go:234")
-
-// Syntax: -log_backtrace_at=gopherflakes.go:234
-// Note that unlike vmodule the file extension is included here.
-func (t *TraceLocation) Set(value string) error {
- if value == "" {
- // Unset.
- logging.mu.Lock()
- t.line = 0
- t.file = ""
- logging.mu.Unlock()
- return nil
- }
-
- fields := strings.Split(value, ":")
- if len(fields) != 2 {
- return errTraceSyntax
- }
- file, line := fields[0], fields[1]
- if !strings.Contains(file, ".") {
- return errTraceSyntax
- }
- v, err := strconv.Atoi(line)
- if err != nil {
- return errTraceSyntax
- }
- if v <= 0 {
- return errors.New("negative or zero value for level")
- }
- logging.mu.Lock()
- defer logging.mu.Unlock()
- t.line = v
- t.file = file
- return nil
-}
-
-// flushSyncWriter is the interface satisfied by logging destinations.
-type flushSyncWriter interface {
- Flush() error
- Sync() error
- io.Writer
-}
-
-func init() {
- //flag.BoolVar(&logging.toStderr, "logtostderr", false, "log to standard error instead of files")
- //flag.BoolVar(&logging.alsoToStderr, "alsologtostderr", false, "log to standard error as well as files")
- //flag.Var(&logging.verbosity, "v", "log level for V logs")
- //flag.Var(&logging.stderrThreshold, "stderrthreshold", "logs at or above this threshold go to stderr")
- //flag.Var(&logging.vmodule, "vmodule", "comma-separated list of pattern=N settings for file-filtered logging")
- //flag.Var(&logging.traceLocation, "log_backtrace_at", "when logging hits line file:N, emit a stack trace")
-
- // Default stderrThreshold is ERROR.
- logging.stderrThreshold = errorLog
- logging.setVState(3, nil, false)
- go logging.flushDaemon()
-}
-
-// Flush flushes all pending log I/O.
-func Flush() {
- logging.lockAndFlushAll()
-}
-
-// loggingT collects all the global state of the logging setup.
-type loggingT struct {
- // Boolean flags. Not handled atomically because the flag.Value interface
- // does not let us avoid the =true, and that shorthand is necessary for
- // compatibility. TODO: does this matter enough to fix? Seems unlikely.
- toStderr bool // The -logtostderr flag.
- alsoToStderr bool // The -alsologtostderr flag.
-
- // Level flag. Handled atomically.
- stderrThreshold severity // The -stderrthreshold flag.
-
- // freeList is a list of byte buffers, maintained under freeListMu.
- freeList *buffer
- // freeListMu maintains the free list. It is separate from the main mutex
- // so buffers can be grabbed and printed to without holding the main lock,
- // for better parallelization.
- freeListMu sync.Mutex
-
- // mu protects the remaining elements of this structure and is
- // used to synchronize logging.
- mu sync.Mutex
- // file holds writer for each of the log types.
- file [numSeverity]flushSyncWriter
- // pcs is used in V to avoid an allocation when computing the caller's PC.
- pcs [1]uintptr
- // vmap is a cache of the V Level for each V() call site, identified by PC.
- // It is wiped whenever the vmodule flag changes state.
- vmap map[uintptr]Level
- // filterLength stores the length of the vmodule filter chain. If greater
- // than zero, it means vmodule is enabled. It may be read safely
- // using sync.LoadInt32, but is only modified under mu.
- filterLength int32
- // traceLocation is the state of the -log_backtrace_at flag.
- traceLocation TraceLocation
- // These flags are modified only under lock, although verbosity may be fetched
- // safely using atomic.LoadInt32.
- vmodule moduleSpec // The state of the -vmodule flag.
- verbosity Level // V logging level, the value of the -v flag/
-}
-
-// buffer holds a byte Buffer for reuse. The zero value is ready for use.
-type buffer struct {
- bytes.Buffer
- tmp [64]byte // temporary byte array for creating headers.
- next *buffer
-}
-
-var logging loggingT
-
-// setVState sets a consistent state for V logging.
-// l.mu is held.
-func (l *loggingT) setVState(verbosity Level, filter []modulePat, setFilter bool) {
- // Turn verbosity off so V will not fire while we are in transition.
- logging.verbosity.set(0)
- // Ditto for filter length.
- atomic.StoreInt32(&logging.filterLength, 0)
-
- // Set the new filters and wipe the pc->Level map if the filter has changed.
- if setFilter {
- logging.vmodule.filter = filter
- logging.vmap = make(map[uintptr]Level)
- }
-
- // Things are consistent now, so enable filtering and verbosity.
- // They are enabled in order opposite to that in V.
- atomic.StoreInt32(&logging.filterLength, int32(len(filter)))
- logging.verbosity.set(verbosity)
-}
-
-// getBuffer returns a new, ready-to-use buffer.
-func (l *loggingT) getBuffer() *buffer {
- l.freeListMu.Lock()
- b := l.freeList
- if b != nil {
- l.freeList = b.next
- }
- l.freeListMu.Unlock()
- if b == nil {
- b = new(buffer)
- } else {
- b.next = nil
- b.Reset()
- }
- return b
-}
-
-// putBuffer returns a buffer to the free list.
-func (l *loggingT) putBuffer(b *buffer) {
- if b.Len() >= 256 {
- // Let big buffers die a natural death.
- return
- }
- l.freeListMu.Lock()
- b.next = l.freeList
- l.freeList = b
- l.freeListMu.Unlock()
-}
-
-var timeNow = time.Now // Stubbed out for testing.
-
-/*
-header formats a log header as defined by the C++ implementation.
-It returns a buffer containing the formatted header and the user's file and line number.
-The depth specifies how many stack frames above lives the source line to be identified in the log message.
-
-Log lines have this form:
- Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg...
-where the fields are defined as follows:
- L A single character, representing the log level (eg 'I' for INFO)
- mm The month (zero padded; ie May is '05')
- dd The day (zero padded)
- hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds
- threadid The space-padded thread ID as returned by GetTID()
- file The file name
- line The line number
- msg The user-supplied message
-*/
-func (l *loggingT) header(s severity, depth int) (*buffer, string, int) {
- _, file, line, ok := runtime.Caller(3 + depth)
- if !ok {
- file = "???"
- line = 1
- } else {
- file = trimToImportPath(file)
- for _, p := range trimPrefixes {
- if strings.HasPrefix(file, p) {
- file = file[len(p):]
- break
- }
- }
- file = file[1:] // drop '/'
- }
- return l.formatHeader(s, file, line), file, line
-}
-
-// formatHeader formats a log header using the provided file name and line number.
-func (l *loggingT) formatHeader(s severity, file string, line int) *buffer {
- now := timeNow()
- if line < 0 {
- line = 0 // not a real line number, but acceptable to someDigits
- }
- if s > fatalLog {
- s = infoLog // for safety.
- }
- buf := l.getBuffer()
-
- // Avoid Fprintf, for speed. The format is so simple that we can do it quickly by hand.
- // It's worth about 3X. Fprintf is hard.
- _, month, day := now.Date()
- hour, minute, second := now.Clock()
- // Lmmdd hh:mm:ss.uuuuuu threadid file:line]
- buf.tmp[0] = severityChar[s]
- buf.twoDigits(1, int(month))
- buf.twoDigits(3, day)
- buf.tmp[5] = ' '
- buf.twoDigits(6, hour)
- buf.tmp[8] = ':'
- buf.twoDigits(9, minute)
- buf.tmp[11] = ':'
- buf.twoDigits(12, second)
- buf.tmp[14] = '.'
- buf.nDigits(6, 15, now.Nanosecond()/1000, '0')
- buf.tmp[21] = ' '
- buf.Write(buf.tmp[:22])
- buf.WriteString(file)
- buf.tmp[0] = ':'
- n := buf.someDigits(1, line)
- buf.tmp[n+1] = ']'
- buf.tmp[n+2] = ' '
- buf.Write(buf.tmp[:n+3])
- return buf
-}
-
-// Some custom tiny helper functions to print the log header efficiently.
-
-const digits = "0123456789"
-
-// twoDigits formats a zero-prefixed two-digit integer at buf.tmp[i].
-func (buf *buffer) twoDigits(i, d int) {
- buf.tmp[i+1] = digits[d%10]
- d /= 10
- buf.tmp[i] = digits[d%10]
-}
-
-// nDigits formats an n-digit integer at buf.tmp[i],
-// padding with pad on the left.
-// It assumes d >= 0.
-func (buf *buffer) nDigits(n, i, d int, pad byte) {
- j := n - 1
- for ; j >= 0 && d > 0; j-- {
- buf.tmp[i+j] = digits[d%10]
- d /= 10
- }
- for ; j >= 0; j-- {
- buf.tmp[i+j] = pad
- }
-}
-
-// someDigits formats a zero-prefixed variable-width integer at buf.tmp[i].
-func (buf *buffer) someDigits(i, d int) int {
- // Print into the top, then copy down. We know there's space for at least
- // a 10-digit number.
- j := len(buf.tmp)
- for {
- j--
- buf.tmp[j] = digits[d%10]
- d /= 10
- if d == 0 {
- break
- }
- }
- return copy(buf.tmp[i:], buf.tmp[j:])
-}
-
-func (l *loggingT) println(s severity, args ...interface{}) {
- buf, file, line := l.header(s, 0)
- fmt.Fprintln(buf, args...)
- l.output(s, buf, file, line, false)
-}
-
-func (l *loggingT) print(s severity, args ...interface{}) {
- l.printDepth(s, 1, args...)
-}
-
-func (l *loggingT) printDepth(s severity, depth int, args ...interface{}) {
- buf, file, line := l.header(s, depth)
- fmt.Fprint(buf, args...)
- if buf.Bytes()[buf.Len()-1] != '\n' {
- buf.WriteByte('\n')
- }
- l.output(s, buf, file, line, false)
-}
-
-func (l *loggingT) printfmt(s severity, format string, args ...interface{}) {
- buf, file, line := l.header(s, 0)
- fmt.Fprintf(buf, format, args...)
- if buf.Bytes()[buf.Len()-1] != '\n' {
- buf.WriteByte('\n')
- }
- l.output(s, buf, file, line, false)
-}
-
-// printWithFileLine behaves like print but uses the provided file and line number. If
-// alsoLogToStderr is true, the log message always appears on standard error; it
-// will also appear in the log file unless --logtostderr is set.
-func (l *loggingT) printWithFileLine(s severity, file string, line int, alsoToStderr bool, args ...interface{}) {
- buf := l.formatHeader(s, file, line)
- fmt.Fprint(buf, args...)
- if buf.Bytes()[buf.Len()-1] != '\n' {
- buf.WriteByte('\n')
- }
- l.output(s, buf, file, line, alsoToStderr)
-}
-
-// output writes the data to the log files and releases the buffer.
-func (l *loggingT) output(s severity, buf *buffer, file string, line int, alsoToStderr bool) {
- l.mu.Lock()
- if l.traceLocation.isSet() {
- if l.traceLocation.match(file, line) {
- buf.Write(stacks(false))
- }
- }
- data := buf.Bytes()
- if l.toStderr {
- os.Stderr.Write(data)
- } else {
- if alsoToStderr || l.alsoToStderr || s >= l.stderrThreshold.get() {
- os.Stderr.Write(data)
- }
- if l.file[s] == nil {
- if err := l.createFiles(s); err != nil {
- os.Stderr.Write(data) // Make sure the message appears somewhere.
- l.exit(err)
- }
- }
- switch s {
- case fatalLog:
- l.file[fatalLog].Write(data)
- fallthrough
- case errorLog:
- l.file[errorLog].Write(data)
- fallthrough
- case warningLog:
- l.file[warningLog].Write(data)
- fallthrough
- case infoLog:
- l.file[infoLog].Write(data)
- }
- }
- if s == fatalLog {
- // If we got here via Exit rather than Fatal, print no stacks.
- if atomic.LoadUint32(&fatalNoStacks) > 0 {
- l.mu.Unlock()
- timeoutFlush(10 * time.Second)
- os.Exit(1)
- }
- // Dump all goroutine stacks before exiting.
- // First, make sure we see the trace for the current goroutine on standard error.
- // If -logtostderr has been specified, the loop below will do that anyway
- // as the first stack in the full dump.
- if !l.toStderr {
- os.Stderr.Write(stacks(false))
- }
- // Write the stack trace for all goroutines to the files.
- trace := stacks(true)
- logExitFunc = func(error) {} // If we get a write error, we'll still exit below.
- for log := fatalLog; log >= infoLog; log-- {
- if f := l.file[log]; f != nil { // Can be nil if -logtostderr is set.
- f.Write(trace)
- }
- }
- l.mu.Unlock()
- timeoutFlush(10 * time.Second)
- os.Exit(255) // C++ uses -1, which is silly because it's anded with 255 anyway.
- }
- l.putBuffer(buf)
- l.mu.Unlock()
- if stats := severityStats[s]; stats != nil {
- atomic.AddInt64(&stats.lines, 1)
- atomic.AddInt64(&stats.bytes, int64(len(data)))
- }
-}
-
-// timeoutFlush calls Flush and returns when it completes or after timeout
-// elapses, whichever happens first. This is needed because the hooks invoked
-// by Flush may deadlock when glog.Fatal is called from a hook that holds
-// a lock.
-func timeoutFlush(timeout time.Duration) {
- done := make(chan bool, 1)
- go func() {
- Flush() // calls logging.lockAndFlushAll()
- done <- true
- }()
- select {
- case <-done:
- case <-time.After(timeout):
- fmt.Fprintln(os.Stderr, "glog: Flush took longer than", timeout)
- }
-}
-
-// stacks is a wrapper for runtime.Stack that attempts to recover the data for all goroutines.
-func stacks(all bool) []byte {
- // We don't know how big the traces are, so grow a few times if they don't fit. Start large, though.
- n := 10000
- if all {
- n = 100000
- }
- var trace []byte
- for i := 0; i < 5; i++ {
- trace = make([]byte, n)
- nbytes := runtime.Stack(trace, all)
- if nbytes < len(trace) {
- return trace[:nbytes]
- }
- n *= 2
- }
- return trace
-}
-
-// logExitFunc provides a simple mechanism to override the default behavior
-// of exiting on error. Used in testing and to guarantee we reach a required exit
-// for fatal logs. Instead, exit could be a function rather than a method but that
-// would make its use clumsier.
-var logExitFunc func(error)
-
-// exit is called if there is trouble creating or writing log files.
-// It flushes the logs and exits the program; there's no point in hanging around.
-// l.mu is held.
-func (l *loggingT) exit(err error) {
- fmt.Fprintf(os.Stderr, "log: exiting because of error: %s\n", err)
- // If logExitFunc is set, we do that instead of exiting.
- if logExitFunc != nil {
- logExitFunc(err)
- return
- }
- l.flushAll()
- os.Exit(2)
-}
-
-// syncBuffer joins a bufio.Writer to its underlying file, providing access to the
-// file's Sync method and providing a wrapper for the Write method that provides log
-// file rotation. There are conflicting methods, so the file cannot be embedded.
-// l.mu is held for all its methods.
-type syncBuffer struct {
- logger *loggingT
- *bufio.Writer
- file *os.File
- sev severity
- nbytes uint64 // The number of bytes written to this file
-}
-
-func (sb *syncBuffer) Sync() error {
- return sb.file.Sync()
-}
-
-func (sb *syncBuffer) Write(p []byte) (n int, err error) {
- if sb.nbytes+uint64(len(p)) >= MaxSize {
- if err := sb.rotateFile(time.Now()); err != nil {
- sb.logger.exit(err)
- }
- }
- n, err = sb.Writer.Write(p)
- sb.nbytes += uint64(n)
- if err != nil {
- sb.logger.exit(err)
- }
- return
-}
-
-// rotateFile closes the syncBuffer's file and starts a new one.
-func (sb *syncBuffer) rotateFile(now time.Time) error {
- if sb.file != nil {
- sb.Flush()
- sb.file.Close()
- }
- var err error
- sb.file, _, err = create(severityName[sb.sev], now)
- sb.nbytes = 0
- if err != nil {
- return err
- }
-
- sb.Writer = bufio.NewWriterSize(sb.file, bufferSize)
-
- // Write header.
- var buf bytes.Buffer
- fmt.Fprintf(&buf, "Log file created at: %s\n", now.Format("2006/01/02 15:04:05"))
- fmt.Fprintf(&buf, "Running on machine: %s\n", host)
- fmt.Fprintf(&buf, "Binary: Built with %s %s for %s/%s\n", runtime.Compiler, runtime.Version(), runtime.GOOS, runtime.GOARCH)
- fmt.Fprintf(&buf, "Log line format: [IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg\n")
- n, err := sb.file.Write(buf.Bytes())
- sb.nbytes += uint64(n)
- return err
-}
-
-// bufferSize sizes the buffer associated with each log file. It's large
-// so that log records can accumulate without the logging thread blocking
-// on disk I/O. The flushDaemon will block instead.
-const bufferSize = 256 * 1024
-
-// createFiles creates all the log files for severity from sev down to infoLog.
-// l.mu is held.
-func (l *loggingT) createFiles(sev severity) error {
- now := time.Now()
- // Files are created in decreasing severity order, so as soon as we find one
- // has already been created, we can stop.
- for s := sev; s >= infoLog && l.file[s] == nil; s-- {
- sb := &syncBuffer{
- logger: l,
- sev: s,
- }
- if err := sb.rotateFile(now); err != nil {
- return err
- }
- l.file[s] = sb
- }
- return nil
-}
-
-const flushInterval = 30 * time.Second
-
-// flushDaemon periodically flushes the log file buffers.
-func (l *loggingT) flushDaemon() {
- for range time.NewTicker(flushInterval).C {
- l.lockAndFlushAll()
- }
-}
-
-// lockAndFlushAll is like flushAll but locks l.mu first.
-func (l *loggingT) lockAndFlushAll() {
- l.mu.Lock()
- l.flushAll()
- l.mu.Unlock()
-}
-
-// flushAll flushes all the logs and attempts to "sync" their data to disk.
-// l.mu is held.
-func (l *loggingT) flushAll() {
- // Flush from fatal down, in case there's trouble flushing.
- for s := fatalLog; s >= infoLog; s-- {
- file := l.file[s]
- if file != nil {
- file.Flush() // ignore error
- file.Sync() // ignore error
- }
- }
-}
-
-// CopyStandardLogTo arranges for messages written to the Go "log" package's
-// default logs to also appear in the Google logs for the named and lower
-// severities. Subsequent changes to the standard log's default output location
-// or format may break this behavior.
-//
-// Valid names are "INFO", "WARNING", "ERROR", and "FATAL". If the name is not
-// recognized, CopyStandardLogTo panics.
-func CopyStandardLogTo(name string) {
- sev, ok := severityByName(name)
- if !ok {
- panic(fmt.Sprintf("log.CopyStandardLogTo(%q): unrecognized severity name", name))
- }
- // Set a log format that captures the user's file and line:
- // d.go:23: message
- stdLog.SetFlags(stdLog.Lshortfile)
- stdLog.SetOutput(logBridge(sev))
-}
-
-// logBridge provides the Write method that enables CopyStandardLogTo to connect
-// Go's standard logs to the logs provided by this package.
-type logBridge severity
-
-// Write parses the standard logging line and passes its components to the
-// logger for severity(lb).
-func (lb logBridge) Write(b []byte) (n int, err error) {
- var (
- file = "???"
- line = 1
- text string
- )
- // Split "d.go:23: message" into "d.go", "23", and "message".
- if parts := bytes.SplitN(b, []byte{':'}, 3); len(parts) != 3 || len(parts[0]) < 1 || len(parts[2]) < 1 {
- text = fmt.Sprintf("bad log format: %s", b)
- } else {
- file = string(parts[0])
- text = string(parts[2][1:]) // skip leading space
- line, err = strconv.Atoi(string(parts[1]))
- if err != nil {
- text = fmt.Sprintf("bad line number: %s", b)
- line = 1
- }
- }
- // printWithFileLine with alsoToStderr=true, so standard log messages
- // always appear on standard error.
- logging.printWithFileLine(severity(lb), file, line, true, text)
- return len(b), nil
-}
-
-// setV computes and remembers the V level for a given PC
-// when vmodule is enabled.
-// File pattern matching takes the basename of the file, stripped
-// of its .go suffix, and uses filepath.Match, which is a little more
-// general than the *? matching used in C++.
-// l.mu is held.
-func (l *loggingT) setV(pc uintptr) Level {
- fn := runtime.FuncForPC(pc)
- file, _ := fn.FileLine(pc)
- file = trimToImportPath(file)
- for _, filter := range l.vmodule.filter {
- if filter.pattern.MatchString(file) {
- l.vmap[pc] = filter.level
- return filter.level
- }
- }
- l.vmap[pc] = 0
- return 0
-}
-
-// Verbose is a boolean type that implements Infof (like Printf) etc.
-// See the documentation of V for more information.
-type Verbose bool
-
-// V reports whether verbosity at the call site is at least the requested level.
-// The returned value is a boolean of type Verbose, which implements Info, Infoln
-// and Infof. These methods will write to the Info log if called.
-// Thus, one may write either
-// if glog.V(2) { glog.Info("log this") }
-// or
-// glog.V(2).Info("log this")
-// The second form is shorter but the first is cheaper if logging is off because it does
-// not evaluate its arguments.
-//
-// Whether an individual call to V generates a log record depends on the setting of
-// the -v and --vmodule flags; both are off by default. If the level in the call to
-// V is at least the value of -v, or of -vmodule for the source file containing the
-// call, the V call will log.
-func V(level Level) Verbose {
- // This function tries hard to be cheap unless there's work to do.
- // The fast path is two atomic loads and compares.
-
- // Here is a cheap but safe test to see if V logging is enabled globally.
- if logging.verbosity.get() >= level {
- return Verbose(true)
- }
-
- // It's off globally but it vmodule may still be set.
- // Here is another cheap but safe test to see if vmodule is enabled.
- if atomic.LoadInt32(&logging.filterLength) > 0 {
- // Now we need a proper lock to use the logging structure. The pcs field
- // is shared so we must lock before accessing it. This is fairly expensive,
- // but if V logging is enabled we're slow anyway.
- logging.mu.Lock()
- defer logging.mu.Unlock()
- if runtime.Callers(2, logging.pcs[:]) == 0 {
- return Verbose(false)
- }
- v, ok := logging.vmap[logging.pcs[0]]
- if !ok {
- v = logging.setV(logging.pcs[0])
- }
- return Verbose(v >= level)
- }
- return Verbose(false)
-}
-
-// Info is equivalent to the global Info function, guarded by the value of v.
-// See the documentation of V for usage.
-func (v Verbose) Info(args ...interface{}) {
- if v {
- logging.print(infoLog, args...)
- }
-}
-
-// Infoln is equivalent to the global Infoln function, guarded by the value of v.
-// See the documentation of V for usage.
-func (v Verbose) Infoln(args ...interface{}) {
- if v {
- logging.println(infoLog, args...)
- }
-}
-
-// Infof is equivalent to the global Infof function, guarded by the value of v.
-// See the documentation of V for usage.
-func (v Verbose) Infof(format string, args ...interface{}) {
- if v {
- logging.printfmt(infoLog, format, args...)
- }
-}
-
-// Info logs to the INFO log.
-// Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Info(args ...interface{}) {
- logging.print(infoLog, args...)
-}
-
-// InfoDepth acts as Info but uses depth to determine which call frame to log.
-// InfoDepth(0, "msg") is the same as Info("msg").
-func InfoDepth(depth int, args ...interface{}) {
- logging.printDepth(infoLog, depth, args...)
-}
-
-// Infoln logs to the INFO log.
-// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Infoln(args ...interface{}) {
- logging.print(infoLog, args...)
-}
-
-// Infof logs to the INFO log.
-// Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Infof(format string, args ...interface{}) {
- logging.printfmt(infoLog, format, args...)
-}
-
-// Warning logs to the WARNING and INFO logs.
-// Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Warning(args ...interface{}) {
- logging.print(warningLog, args...)
-}
-
-// WarningDepth acts as Warning but uses depth to determine which call frame to log.
-// WarningDepth(0, "msg") is the same as Warning("msg").
-func WarningDepth(depth int, args ...interface{}) {
- logging.printDepth(warningLog, depth, args...)
-}
-
-// Warningln logs to the WARNING and INFO logs.
-// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Warningln(args ...interface{}) {
- logging.println(warningLog, args...)
-}
-
-// Warningf logs to the WARNING and INFO logs.
-// Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Warningf(format string, args ...interface{}) {
- logging.printfmt(warningLog, format, args...)
-}
-
-// Error logs to the ERROR, WARNING, and INFO logs.
-// Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Error(args ...interface{}) {
- logging.print(errorLog, args...)
-}
-
-// ErrorDepth acts as Error but uses depth to determine which call frame to log.
-// ErrorDepth(0, "msg") is the same as Error("msg").
-func ErrorDepth(depth int, args ...interface{}) {
- logging.printDepth(errorLog, depth, args...)
-}
-
-// Errorln logs to the ERROR, WARNING, and INFO logs.
-// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Errorln(args ...interface{}) {
- logging.println(errorLog, args...)
-}
-
-// Errorf logs to the ERROR, WARNING, and INFO logs.
-// Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Errorf(format string, args ...interface{}) {
- logging.printfmt(errorLog, format, args...)
-}
-
-// Fatal logs to the FATAL, ERROR, WARNING, and INFO logs,
-// including a stack trace of all running goroutines, then calls os.Exit(255).
-// Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Fatal(args ...interface{}) {
- logging.print(fatalLog, args...)
-}
-
-// FatalDepth acts as Fatal but uses depth to determine which call frame to log.
-// FatalDepth(0, "msg") is the same as Fatal("msg").
-func FatalDepth(depth int, args ...interface{}) {
- logging.printDepth(fatalLog, depth, args...)
-}
-
-// Fatalln logs to the FATAL, ERROR, WARNING, and INFO logs,
-// including a stack trace of all running goroutines, then calls os.Exit(255).
-// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Fatalln(args ...interface{}) {
- logging.println(fatalLog, args...)
-}
-
-// Fatalf logs to the FATAL, ERROR, WARNING, and INFO logs,
-// including a stack trace of all running goroutines, then calls os.Exit(255).
-// Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Fatalf(format string, args ...interface{}) {
- logging.printfmt(fatalLog, format, args...)
-}
-
-// fatalNoStacks is non-zero if we are to exit without dumping goroutine stacks.
-// It allows Exit and relatives to use the Fatal logs.
-var fatalNoStacks uint32
-
-// Exit logs to the FATAL, ERROR, WARNING, and INFO logs, then calls os.Exit(1).
-// Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Exit(args ...interface{}) {
- atomic.StoreUint32(&fatalNoStacks, 1)
- logging.print(fatalLog, args...)
-}
-
-// ExitDepth acts as Exit but uses depth to determine which call frame to log.
-// ExitDepth(0, "msg") is the same as Exit("msg").
-func ExitDepth(depth int, args ...interface{}) {
- atomic.StoreUint32(&fatalNoStacks, 1)
- logging.printDepth(fatalLog, depth, args...)
-}
-
-// Exitln logs to the FATAL, ERROR, WARNING, and INFO logs, then calls os.Exit(1).
-func Exitln(args ...interface{}) {
- atomic.StoreUint32(&fatalNoStacks, 1)
- logging.println(fatalLog, args...)
-}
-
-// Exitf logs to the FATAL, ERROR, WARNING, and INFO logs, then calls os.Exit(1).
-// Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Exitf(format string, args ...interface{}) {
- atomic.StoreUint32(&fatalNoStacks, 1)
- logging.printfmt(fatalLog, format, args...)
-}
diff --git a/logger/glog/glog_file.go b/logger/glog/glog_file.go
deleted file mode 100644
index 2fc96eb4e..000000000
--- a/logger/glog/glog_file.go
+++ /dev/null
@@ -1,128 +0,0 @@
-// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
-//
-// Copyright 2013 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// File I/O for logs.
-
-package glog
-
-import (
- "errors"
- "fmt"
- "os"
- "os/user"
- "path/filepath"
- "strings"
- "sync"
- "time"
-)
-
-// MaxSize is the maximum size of a log file in bytes.
-var MaxSize uint64 = 1024 * 1024 * 1800
-
-// logDirs lists the candidate directories for new log files.
-var logDirs []string
-
-// If non-empty, overrides the choice of directory in which to write logs.
-// See createLogDirs for the full list of possible destinations.
-//var logDir = flag.String("log_dir", "", "If non-empty, write log files in this directory")
-var logDir *string = new(string)
-
-func SetLogDir(str string) {
- *logDir = str
-}
-
-func createLogDirs() {
- if *logDir != "" {
- logDirs = append(logDirs, *logDir)
- }
- logDirs = append(logDirs, os.TempDir())
-}
-
-var (
- pid = os.Getpid()
- program = filepath.Base(os.Args[0])
- host = "unknownhost"
- userName = "unknownuser"
-)
-
-func init() {
- h, err := os.Hostname()
- if err == nil {
- host = shortHostname(h)
- }
-
- current, err := user.Current()
- if err == nil {
- userName = current.Username
- }
-
- // Sanitize userName since it may contain filepath separators on Windows.
- userName = strings.Replace(userName, `\`, "_", -1)
-}
-
-// shortHostname returns its argument, truncating at the first period.
-// For instance, given "www.google.com" it returns "www".
-func shortHostname(hostname string) string {
- if i := strings.Index(hostname, "."); i >= 0 {
- return hostname[:i]
- }
- return hostname
-}
-
-// logName returns a new log file name containing tag, with start time t, and
-// the name for the symlink for tag.
-func logName(tag string, t time.Time) (name, link string) {
- name = fmt.Sprintf("%s.%s.%s.log.%s.%04d%02d%02d-%02d%02d%02d.%d",
- program,
- host,
- userName,
- tag,
- t.Year(),
- t.Month(),
- t.Day(),
- t.Hour(),
- t.Minute(),
- t.Second(),
- pid)
- return name, program + "." + tag
-}
-
-var onceLogDirs sync.Once
-
-// create creates a new log file and returns the file and its filename, which
-// contains tag ("INFO", "FATAL", etc.) and t. If the file is created
-// successfully, create also attempts to update the symlink for that tag, ignoring
-// errors.
-func create(tag string, t time.Time) (f *os.File, filename string, err error) {
- onceLogDirs.Do(createLogDirs)
- if len(logDirs) == 0 {
- return nil, "", errors.New("log: no log dirs")
- }
- name, link := logName(tag, t)
- var lastErr error
- for _, dir := range logDirs {
- fname := filepath.Join(dir, name)
- f, err := os.Create(fname)
- if err == nil {
- symlink := filepath.Join(dir, link)
- os.Remove(symlink) // ignore err
- os.Symlink(name, symlink) // ignore err
- return f, fname, nil
- }
- lastErr = err
- }
- return nil, "", fmt.Errorf("log: cannot create log: %v", lastErr)
-}
diff --git a/logger/glog/glog_test.go b/logger/glog/glog_test.go
deleted file mode 100644
index b58f3d642..000000000
--- a/logger/glog/glog_test.go
+++ /dev/null
@@ -1,436 +0,0 @@
-// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
-//
-// Copyright 2013 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package glog
-
-import (
- "bytes"
- "fmt"
- stdLog "log"
- "path/filepath"
- "runtime"
- "strconv"
- "strings"
- "testing"
- "time"
-)
-
-// Test that shortHostname works as advertised.
-func TestShortHostname(t *testing.T) {
- for hostname, expect := range map[string]string{
- "": "",
- "host": "host",
- "host.google.com": "host",
- } {
- if got := shortHostname(hostname); expect != got {
- t.Errorf("shortHostname(%q): expected %q, got %q", hostname, expect, got)
- }
- }
-}
-
-// flushBuffer wraps a bytes.Buffer to satisfy flushSyncWriter.
-type flushBuffer struct {
- bytes.Buffer
-}
-
-func (f *flushBuffer) Flush() error {
- return nil
-}
-
-func (f *flushBuffer) Sync() error {
- return nil
-}
-
-// swap sets the log writers and returns the old array.
-func (l *loggingT) swap(writers [numSeverity]flushSyncWriter) (old [numSeverity]flushSyncWriter) {
- l.mu.Lock()
- defer l.mu.Unlock()
- old = l.file
- for i, w := range writers {
- logging.file[i] = w
- }
- return
-}
-
-// newBuffers sets the log writers to all new byte buffers and returns the old array.
-func (l *loggingT) newBuffers() [numSeverity]flushSyncWriter {
- return l.swap([numSeverity]flushSyncWriter{new(flushBuffer), new(flushBuffer), new(flushBuffer), new(flushBuffer)})
-}
-
-// contents returns the specified log value as a string.
-func contents(s severity) string {
- return logging.file[s].(*flushBuffer).String()
-}
-
-// contains reports whether the string is contained in the log.
-func contains(s severity, str string, t *testing.T) bool {
- return strings.Contains(contents(s), str)
-}
-
-// setFlags configures the logging flags how the test expects them.
-func setFlags() {
- logging.toStderr = false
-}
-
-// Test that Info works as advertised.
-func TestInfo(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- Info("test")
- if !contains(infoLog, "I", t) {
- t.Errorf("Info has wrong character: %q", contents(infoLog))
- }
- if !contains(infoLog, "test", t) {
- t.Error("Info failed")
- }
-}
-
-func TestInfoDepth(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
-
- f := func() { InfoDepth(1, "depth-test1") }
-
- // The next three lines must stay together
- _, _, wantLine, _ := runtime.Caller(0)
- InfoDepth(0, "depth-test0")
- f()
-
- msgs := strings.Split(strings.TrimSuffix(contents(infoLog), "\n"), "\n")
- if len(msgs) != 2 {
- t.Fatalf("Got %d lines, expected 2", len(msgs))
- }
-
- for i, m := range msgs {
- if !strings.HasPrefix(m, "I") {
- t.Errorf("InfoDepth[%d] has wrong character: %q", i, m)
- }
- w := fmt.Sprintf("depth-test%d", i)
- if !strings.Contains(m, w) {
- t.Errorf("InfoDepth[%d] missing %q: %q", i, w, m)
- }
-
- // pull out the line number (between : and ])
- msg := m[strings.LastIndex(m, ":")+1:]
- x := strings.Index(msg, "]")
- if x < 0 {
- t.Errorf("InfoDepth[%d]: missing ']': %q", i, m)
- continue
- }
- line, err := strconv.Atoi(msg[:x])
- if err != nil {
- t.Errorf("InfoDepth[%d]: bad line number: %q", i, m)
- continue
- }
- wantLine++
- if wantLine != line {
- t.Errorf("InfoDepth[%d]: got line %d, want %d", i, line, wantLine)
- }
- }
-}
-
-func init() {
- CopyStandardLogTo("INFO")
-}
-
-// Test that CopyStandardLogTo panics on bad input.
-func TestCopyStandardLogToPanic(t *testing.T) {
- defer func() {
- if s, ok := recover().(string); !ok || !strings.Contains(s, "LOG") {
- t.Errorf(`CopyStandardLogTo("LOG") should have panicked: %v`, s)
- }
- }()
- CopyStandardLogTo("LOG")
-}
-
-// Test that using the standard log package logs to INFO.
-func TestStandardLog(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- stdLog.Print("test")
- if !contains(infoLog, "I", t) {
- t.Errorf("Info has wrong character: %q", contents(infoLog))
- }
- if !contains(infoLog, "test", t) {
- t.Error("Info failed")
- }
-}
-
-// Test that the header has the correct format.
-func TestHeader(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- defer func(previous func() time.Time) { timeNow = previous }(timeNow)
- timeNow = func() time.Time {
- return time.Date(2006, 1, 2, 15, 4, 5, .067890e9, time.Local)
- }
- pid = 1234
- Info("test")
- var line int
- format := "I0102 15:04:05.067890 logger/glog/glog_test.go:%d] test\n"
- n, err := fmt.Sscanf(contents(infoLog), format, &line)
- if n != 1 || err != nil {
- t.Errorf("log format error: %d elements, error %s:\n%s", n, err, contents(infoLog))
- }
- // Scanf treats multiple spaces as equivalent to a single space,
- // so check for correct space-padding also.
- want := fmt.Sprintf(format, line)
- if contents(infoLog) != want {
- t.Errorf("log format error: got:\n\t%q\nwant:\t%q", contents(infoLog), want)
- }
-}
-
-// Test that an Error log goes to Warning and Info.
-// Even in the Info log, the source character will be E, so the data should
-// all be identical.
-func TestError(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- Error("test")
- if !contains(errorLog, "E", t) {
- t.Errorf("Error has wrong character: %q", contents(errorLog))
- }
- if !contains(errorLog, "test", t) {
- t.Error("Error failed")
- }
- str := contents(errorLog)
- if !contains(warningLog, str, t) {
- t.Error("Warning failed")
- }
- if !contains(infoLog, str, t) {
- t.Error("Info failed")
- }
-}
-
-// Test that a Warning log goes to Info.
-// Even in the Info log, the source character will be W, so the data should
-// all be identical.
-func TestWarning(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- Warning("test")
- if !contains(warningLog, "W", t) {
- t.Errorf("Warning has wrong character: %q", contents(warningLog))
- }
- if !contains(warningLog, "test", t) {
- t.Error("Warning failed")
- }
- str := contents(warningLog)
- if !contains(infoLog, str, t) {
- t.Error("Info failed")
- }
-}
-
-// Test that a V log goes to Info.
-func TestV(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- logging.verbosity.Set("2")
- defer logging.verbosity.Set("0")
- V(2).Info("test")
- if !contains(infoLog, "I", t) {
- t.Errorf("Info has wrong character: %q", contents(infoLog))
- }
- if !contains(infoLog, "test", t) {
- t.Error("Info failed")
- }
-}
-
-// Test that a vmodule enables a log in this file.
-func TestVmoduleOn(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- logging.vmodule.Set("glog_test.go=2")
- defer logging.vmodule.Set("")
- if !V(1) {
- t.Error("V not enabled for 1")
- }
- if !V(2) {
- t.Error("V not enabled for 2")
- }
- if V(3) {
- t.Error("V enabled for 3")
- }
- V(2).Info("test")
- if !contains(infoLog, "I", t) {
- t.Errorf("Info has wrong character: %q", contents(infoLog))
- }
- if !contains(infoLog, "test", t) {
- t.Error("Info failed")
- }
-}
-
-// Test that a vmodule of another file does not enable a log in this file.
-func TestVmoduleOff(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- logging.vmodule.Set("notthisfile=2")
- defer logging.vmodule.Set("")
- for i := 1; i <= 3; i++ {
- if V(Level(i)) {
- t.Errorf("V enabled for %d", i)
- }
- }
- V(2).Info("test")
- if contents(infoLog) != "" {
- t.Error("V logged incorrectly")
- }
-}
-
-var patternTests = []struct{ input, want string }{
- {"foo/bar/x.go", ".*/foo/bar/x\\.go$"},
- {"foo/*/x.go", ".*/foo(/.*)?/x\\.go$"},
- {"foo/*", ".*/foo(/.*)?/[^/]+\\.go$"},
-}
-
-func TestCompileModulePattern(t *testing.T) {
- for _, test := range patternTests {
- re, err := compileModulePattern(test.input)
- if err != nil {
- t.Fatalf("%s: %v", test.input, err)
- }
- if re.String() != test.want {
- t.Errorf("mismatch for %q: got %q, want %q", test.input, re.String(), test.want)
- }
- }
-}
-
-// vGlobs are patterns that match/don't match this file at V=2.
-var vGlobs = map[string]bool{
- // Easy to test the numeric match here.
- "glog_test.go=1": false, // If -vmodule sets V to 1, V(2) will fail.
- "glog_test.go=2": true,
- "glog_test.go=3": true, // If -vmodule sets V to 1, V(3) will succeed.
-
- // Import path prefix matching
- "logger/glog=1": false,
- "logger/glog=2": true,
- "logger/glog=3": true,
-
- // Import path glob matching
- "logger/*=1": false,
- "logger/*=2": true,
- "logger/*=3": true,
-
- // These all use 2 and check the patterns.
- "*=2": true,
-}
-
-// Test that vmodule globbing works as advertised.
-func testVmoduleGlob(pat string, match bool, t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- defer logging.vmodule.Set("")
- logging.vmodule.Set(pat)
- if V(2) != Verbose(match) {
- t.Errorf("incorrect match for %q: got %t expected %t", pat, V(2), match)
- }
-}
-
-// Test that a vmodule globbing works as advertised.
-func TestVmoduleGlob(t *testing.T) {
- for glob, match := range vGlobs {
- testVmoduleGlob(glob, match, t)
- }
-}
-
-func TestRollover(t *testing.T) {
- setFlags()
- var err error
- defer func(previous func(error)) { logExitFunc = previous }(logExitFunc)
- logExitFunc = func(e error) {
- err = e
- }
- defer func(previous uint64) { MaxSize = previous }(MaxSize)
- MaxSize = 512
-
- Info("x") // Be sure we have a file.
- info, ok := logging.file[infoLog].(*syncBuffer)
- if !ok {
- t.Fatal("info wasn't created")
- }
- if err != nil {
- t.Fatalf("info has initial error: %v", err)
- }
- fname0 := info.file.Name()
- Info(strings.Repeat("x", int(MaxSize))) // force a rollover
- if err != nil {
- t.Fatalf("info has error after big write: %v", err)
- }
-
- // Make sure the next log file gets a file name with a different
- // time stamp.
- //
- // TODO: determine whether we need to support subsecond log
- // rotation. C++ does not appear to handle this case (nor does it
- // handle Daylight Savings Time properly).
- time.Sleep(1 * time.Second)
-
- Info("x") // create a new file
- if err != nil {
- t.Fatalf("error after rotation: %v", err)
- }
- fname1 := info.file.Name()
- if fname0 == fname1 {
- t.Errorf("info.f.Name did not change: %v", fname0)
- }
- if info.nbytes >= MaxSize {
- t.Errorf("file size was not reset: %d", info.nbytes)
- }
-}
-
-func TestLogBacktraceAt(t *testing.T) {
- setFlags()
- defer logging.swap(logging.newBuffers())
- // The peculiar style of this code simplifies line counting and maintenance of the
- // tracing block below.
- var infoLine string
- setTraceLocation := func(file string, line int, ok bool, delta int) {
- if !ok {
- t.Fatal("could not get file:line")
- }
- _, file = filepath.Split(file)
- infoLine = fmt.Sprintf("%s:%d", file, line+delta)
- err := logging.traceLocation.Set(infoLine)
- if err != nil {
- t.Fatal("error setting log_backtrace_at: ", err)
- }
- }
- {
- // Start of tracing block. These lines know about each other's relative position.
- _, file, line, ok := runtime.Caller(0)
- setTraceLocation(file, line, ok, +2) // Two lines between Caller and Info calls.
- Info("we want a stack trace here")
- }
- numAppearances := strings.Count(contents(infoLog), infoLine)
- if numAppearances < 2 {
- // Need 2 appearances, one in the log header and one in the trace:
- // log_test.go:281: I0511 16:36:06.952398 02238 log_test.go:280] we want a stack trace here
- // ...
- // github.com/glog/glog_test.go:280 (0x41ba91)
- // ...
- // We could be more precise but that would require knowing the details
- // of the traceback format, which may not be dependable.
- t.Fatal("got no trace back; log is ", contents(infoLog))
- }
-}
-
-func BenchmarkHeader(b *testing.B) {
- for i := 0; i < b.N; i++ {
- buf, _, _ := logging.header(infoLog, 0)
- logging.putBuffer(buf)
- }
-}
diff --git a/logger/verbosity.go b/logger/verbosity.go
deleted file mode 100644
index 0771c50d9..000000000
--- a/logger/verbosity.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-const (
- Error = iota + 1
- Warn
- Info
- Debug
- Detail
-
- Ridiculousness = 100
-)
--
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