83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package logs
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import (
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"io"
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"sync"
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"time"
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)
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type logWriter struct {
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sync.Mutex
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writer io.Writer
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}
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func newLogWriter(wr io.Writer) *logWriter {
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return &logWriter{writer: wr}
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}
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func (lg *logWriter) println(when time.Time, msg string) {
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lg.Lock()
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h, _ := formatTimeHeader(when)
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lg.writer.Write(append(append(h, msg...), '\n'))
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lg.Unlock()
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}
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const y1 = `0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999`
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const y2 = `0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789`
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const mo1 = `000000000111`
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const mo2 = `123456789012`
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const d1 = `0000000001111111111222222222233`
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const d2 = `1234567890123456789012345678901`
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const h1 = `000000000011111111112222`
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const h2 = `012345678901234567890123`
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const mi1 = `000000000011111111112222222222333333333344444444445555555555`
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const mi2 = `012345678901234567890123456789012345678901234567890123456789`
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const s1 = `000000000011111111112222222222333333333344444444445555555555`
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const s2 = `012345678901234567890123456789012345678901234567890123456789`
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func formatTimeHeader(when time.Time) ([]byte, int) {
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y, mo, d := when.Date()
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h, mi, s := when.Clock()
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//len("2006/01/02 15:04:05 ")==20
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var buf [20]byte
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//change to '3' after 984 years, LOL
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buf[0] = '2'
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//change to '1' after 84 years, LOL
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buf[1] = '0'
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buf[2] = y1[y-2000]
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buf[3] = y2[y-2000]
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buf[4] = '/'
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buf[5] = mo1[mo-1]
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buf[6] = mo2[mo-1]
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buf[7] = '/'
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buf[8] = d1[d-1]
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buf[9] = d2[d-1]
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buf[10] = ' '
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buf[11] = h1[h]
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buf[12] = h2[h]
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buf[13] = ':'
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buf[14] = mi1[mi]
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buf[15] = mi2[mi]
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buf[16] = ':'
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buf[17] = s1[s]
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buf[18] = s2[s]
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buf[19] = ' '
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return buf[0:], d
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}
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