use my own log

This commit is contained in:
siddontang 2014-06-19 17:50:27 +08:00
parent 50bd648e0c
commit c5af770387
13 changed files with 586 additions and 8 deletions

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@ -2,4 +2,4 @@
. ./dev.sh
go get -u github.com/siddontang/go-log/log
#nothing to do now

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@ -3,7 +3,7 @@ package main
import (
"flag"
"fmt"
"github.com/garyburd/redigo/redis"
"github.com/siddontang/ledisdb/client/go/redis"
"math/rand"
"sync"
"time"

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@ -5,7 +5,7 @@ import (
"encoding/binary"
"encoding/json"
"fmt"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/log"
"io/ioutil"
"os"
"path"

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@ -3,8 +3,8 @@ package ledis
import (
"encoding/json"
"fmt"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/leveldb"
"github.com/siddontang/ledisdb/log"
"path"
"sync"
"time"

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@ -5,7 +5,7 @@ import (
"bytes"
"encoding/binary"
"errors"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/log"
"io"
"os"
)

193
log/filehandler.go Normal file
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@ -0,0 +1,193 @@
package log
import (
"fmt"
"os"
"path"
"time"
)
type FileHandler struct {
fd *os.File
}
func NewFileHandler(fileName string, flag int) (*FileHandler, error) {
dir := path.Dir(fileName)
os.Mkdir(dir, 0777)
f, err := os.OpenFile(fileName, flag, 0)
if err != nil {
return nil, err
}
h := new(FileHandler)
h.fd = f
return h, nil
}
func (h *FileHandler) Write(b []byte) (n int, err error) {
return h.fd.Write(b)
}
func (h *FileHandler) Close() error {
return h.fd.Close()
}
type RotatingFileHandler struct {
fd *os.File
fileName string
maxBytes int
backupCount int
}
func NewRotatingFileHandler(fileName string, maxBytes int, backupCount int) (*RotatingFileHandler, error) {
dir := path.Dir(fileName)
os.Mkdir(dir, 0777)
h := new(RotatingFileHandler)
if maxBytes <= 0 {
return nil, fmt.Errorf("invalid max bytes")
}
h.fileName = fileName
h.maxBytes = maxBytes
h.backupCount = backupCount
var err error
h.fd, err = os.OpenFile(fileName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
return nil, err
}
return h, nil
}
func (h *RotatingFileHandler) Write(p []byte) (n int, err error) {
h.doRollover()
return h.fd.Write(p)
}
func (h *RotatingFileHandler) Close() error {
if h.fd != nil {
return h.fd.Close()
}
return nil
}
func (h *RotatingFileHandler) doRollover() {
f, err := h.fd.Stat()
if err != nil {
return
}
if h.maxBytes <= 0 {
return
} else if f.Size() < int64(h.maxBytes) {
return
}
if h.backupCount > 0 {
h.fd.Close()
for i := h.backupCount - 1; i > 0; i-- {
sfn := fmt.Sprintf("%s.%d", h.fileName, i)
dfn := fmt.Sprintf("%s.%d", h.fileName, i+1)
os.Rename(sfn, dfn)
}
dfn := fmt.Sprintf("%s.1", h.fileName)
os.Rename(h.fileName, dfn)
h.fd, _ = os.OpenFile(h.fileName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
}
}
//refer: http://docs.python.org/2/library/logging.handlers.html
//same like python TimedRotatingFileHandler
type TimeRotatingFileHandler struct {
fd *os.File
baseName string
interval int64
suffix string
rolloverAt int64
}
const (
WhenSecond = iota
WhenMinute
WhenHour
WhenDay
)
func NewTimeRotatingFileHandler(baseName string, when int8, interval int) (*TimeRotatingFileHandler, error) {
dir := path.Dir(baseName)
os.Mkdir(dir, 0777)
h := new(TimeRotatingFileHandler)
h.baseName = baseName
switch when {
case WhenSecond:
h.interval = 1
h.suffix = "2006-01-02_15-04-05"
case WhenMinute:
h.interval = 60
h.suffix = "2006-01-02_15-04"
case WhenHour:
h.interval = 3600
h.suffix = "2006-01-02_15"
case WhenDay:
h.interval = 3600 * 24
h.suffix = "2006-01-02"
default:
return nil, fmt.Errorf("invalid when_rotate: %d", when)
}
h.interval = h.interval * int64(interval)
var err error
h.fd, err = os.OpenFile(h.baseName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
return nil, err
}
fInfo, _ := h.fd.Stat()
h.rolloverAt = fInfo.ModTime().Unix() + h.interval
return h, nil
}
func (h *TimeRotatingFileHandler) doRollover() {
//refer http://hg.python.org/cpython/file/2.7/Lib/logging/handlers.py
now := time.Now()
if h.rolloverAt <= now.Unix() {
fName := h.baseName + now.Format(h.suffix)
h.fd.Close()
e := os.Rename(h.baseName, fName)
if e != nil {
panic(e)
}
h.fd, _ = os.OpenFile(h.baseName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
h.rolloverAt = time.Now().Unix() + h.interval
}
}
func (h *TimeRotatingFileHandler) Write(b []byte) (n int, err error) {
h.doRollover()
return h.fd.Write(b)
}
func (h *TimeRotatingFileHandler) Close() error {
return h.fd.Close()
}

45
log/handler.go Normal file
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@ -0,0 +1,45 @@
package log
import (
"io"
)
type Handler interface {
Write(p []byte) (n int, err error)
Close() error
}
type StreamHandler struct {
w io.Writer
}
func NewStreamHandler(w io.Writer) (*StreamHandler, error) {
h := new(StreamHandler)
h.w = w
return h, nil
}
func (h *StreamHandler) Write(b []byte) (n int, err error) {
return h.w.Write(b)
}
func (h *StreamHandler) Close() error {
return nil
}
type NullHandler struct {
}
func NewNullHandler() (*NullHandler, error) {
return new(NullHandler), nil
}
func (h *NullHandler) Write(b []byte) (n int, err error) {
return len(b), nil
}
func (h *NullHandler) Close() {
}

226
log/log.go Normal file
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@ -0,0 +1,226 @@
package log
import (
"fmt"
"os"
"runtime"
"strconv"
"sync"
"time"
)
const (
LevelTrace = iota
LevelDebug
LevelInfo
LevelWarn
LevelError
LevelFatal
)
const (
Ltime = 1 << iota //time format "2006/01/02 15:04:05"
Lfile //file.go:123
Llevel //[Trace|Debug|Info...]
)
var LevelName [6]string = [6]string{"Trace", "Debug", "Info", "Warn", "Error", "Fatal"}
const TimeFormat = "2006/01/02 15:04:05"
const maxBufPoolSize = 16
type Logger struct {
sync.Mutex
level int
flag int
handler Handler
quit chan struct{}
msg chan []byte
bufs [][]byte
}
func New(handler Handler, flag int) *Logger {
var l = new(Logger)
l.level = LevelInfo
l.handler = handler
l.flag = flag
l.quit = make(chan struct{})
l.msg = make(chan []byte, 1024)
l.bufs = make([][]byte, 0, 16)
go l.run()
return l
}
func NewDefault(handler Handler) *Logger {
return New(handler, Ltime|Lfile|Llevel)
}
func newStdHandler() *StreamHandler {
h, _ := NewStreamHandler(os.Stdout)
return h
}
var std = NewDefault(newStdHandler())
func (l *Logger) run() {
for {
select {
case msg := <-l.msg:
l.handler.Write(msg)
l.putBuf(msg)
case <-l.quit:
l.handler.Close()
}
}
}
func (l *Logger) popBuf() []byte {
l.Lock()
var buf []byte
if len(l.bufs) == 0 {
buf = make([]byte, 0, 1024)
} else {
buf = l.bufs[len(l.bufs)-1]
l.bufs = l.bufs[0 : len(l.bufs)-1]
}
l.Unlock()
return buf
}
func (l *Logger) putBuf(buf []byte) {
l.Lock()
if len(l.bufs) < maxBufPoolSize {
buf = buf[0:0]
l.bufs = append(l.bufs, buf)
}
l.Unlock()
}
func (l *Logger) Close() {
if l.quit == nil {
return
}
close(l.quit)
l.quit = nil
}
func (l *Logger) SetLevel(level int) {
l.level = level
}
func (l *Logger) Output(callDepth int, level int, format string, v ...interface{}) {
if l.level > level {
return
}
buf := l.popBuf()
if l.flag&Ltime > 0 {
now := time.Now().Format(TimeFormat)
buf = append(buf, '[')
buf = append(buf, now...)
buf = append(buf, "] "...)
}
if l.flag&Lfile > 0 {
_, file, line, ok := runtime.Caller(callDepth)
if !ok {
file = "???"
line = 0
} else {
for i := len(file) - 1; i > 0; i-- {
if file[i] == '/' {
file = file[i+1:]
break
}
}
}
buf = append(buf, file...)
buf = append(buf, ':')
strconv.AppendInt(buf, int64(line), 10)
}
if l.flag&Llevel > 0 {
buf = append(buf, '[')
buf = append(buf, LevelName[level]...)
buf = append(buf, "] "...)
}
s := fmt.Sprintf(format, v...)
buf = append(buf, s...)
if s[len(s)-1] != '\n' {
buf = append(buf, '\n')
}
l.msg <- buf
}
func (l *Logger) Trace(format string, v ...interface{}) {
l.Output(2, LevelTrace, format, v...)
}
func (l *Logger) Debug(format string, v ...interface{}) {
l.Output(2, LevelDebug, format, v...)
}
func (l *Logger) Info(format string, v ...interface{}) {
l.Output(2, LevelInfo, format, v...)
}
func (l *Logger) Warn(format string, v ...interface{}) {
l.Output(2, LevelWarn, format, v...)
}
func (l *Logger) Error(format string, v ...interface{}) {
l.Output(2, LevelError, format, v...)
}
func (l *Logger) Fatal(format string, v ...interface{}) {
l.Output(2, LevelFatal, format, v...)
}
func SetLevel(level int) {
std.SetLevel(level)
}
func Trace(format string, v ...interface{}) {
std.Output(2, LevelTrace, format, v...)
}
func Debug(format string, v ...interface{}) {
std.Output(2, LevelDebug, format, v...)
}
func Info(format string, v ...interface{}) {
std.Output(2, LevelInfo, format, v...)
}
func Warn(format string, v ...interface{}) {
std.Output(2, LevelWarn, format, v...)
}
func Error(format string, v ...interface{}) {
std.Output(2, LevelError, format, v...)
}
func Fatal(format string, v ...interface{}) {
std.Output(2, LevelFatal, format, v...)
}

52
log/log_test.go Normal file
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@ -0,0 +1,52 @@
package log
import (
"os"
"testing"
)
func TestStdStreamLog(t *testing.T) {
h, _ := NewStreamHandler(os.Stdout)
s := NewDefault(h)
s.Info("hello world")
s.Close()
Info("hello world")
}
func TestRotatingFileLog(t *testing.T) {
path := "./test_log"
os.RemoveAll(path)
os.Mkdir(path, 0777)
fileName := path + "/test"
h, err := NewRotatingFileHandler(fileName, 10, 2)
if err != nil {
t.Fatal(err)
}
buf := make([]byte, 10)
h.Write(buf)
h.Write(buf)
if _, err := os.Stat(fileName + ".1"); err != nil {
t.Fatal(err)
}
if _, err := os.Stat(fileName + ".2"); err == nil {
t.Fatal(err)
}
h.Write(buf)
if _, err := os.Stat(fileName + ".2"); err != nil {
t.Fatal(err)
}
h.Close()
os.RemoveAll(path)
}

62
log/sockethandler.go Normal file
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@ -0,0 +1,62 @@
package log
import (
"encoding/binary"
"net"
"time"
)
type SocketHandler struct {
c net.Conn
protocol string
addr string
}
func NewSocketHandler(protocol string, addr string) (*SocketHandler, error) {
s := new(SocketHandler)
s.protocol = protocol
s.addr = addr
return s, nil
}
func (h *SocketHandler) Write(p []byte) (n int, err error) {
if err = h.connect(); err != nil {
return
}
buf := make([]byte, len(p)+4)
binary.BigEndian.PutUint32(buf, uint32(len(p)))
copy(buf[4:], p)
n, err = h.c.Write(buf)
if err != nil {
h.c.Close()
h.c = nil
}
return
}
func (h *SocketHandler) Close() error {
if h.c != nil {
h.c.Close()
}
return nil
}
func (h *SocketHandler) connect() error {
if h.c != nil {
return nil
}
var err error
h.c, err = net.DialTimeout(h.protocol, h.addr, 20*time.Second)
if err != nil {
return err
}
return nil
}

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@ -1,7 +1,7 @@
package server
import (
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/log"
)
const (

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@ -4,8 +4,8 @@ import (
"bufio"
"bytes"
"errors"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/ledis"
"github.com/siddontang/ledisdb/log"
"io"
"net"
"runtime"

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@ -7,8 +7,8 @@ import (
"encoding/json"
"errors"
"fmt"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/ledis"
"github.com/siddontang/ledisdb/log"
"io/ioutil"
"net"
"os"