matterbridge/vendor/github.com/alecthomas/log4go/termlog.go

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2016-04-10 21:39:38 +00:00
// Copyright (C) 2010, Kyle Lemons <kyle@kylelemons.net>. All rights reserved.
package log4go
import (
"fmt"
"io"
"os"
"time"
)
var stdout io.Writer = os.Stdout
// This is the standard writer that prints to standard output.
type ConsoleLogWriter struct {
format string
w chan *LogRecord
}
// This creates a new ConsoleLogWriter
func NewConsoleLogWriter() *ConsoleLogWriter {
consoleWriter := &ConsoleLogWriter{
format: "[%T %D] [%L] (%S) %M",
w: make(chan *LogRecord, LogBufferLength),
}
go consoleWriter.run(stdout)
return consoleWriter
}
func (c *ConsoleLogWriter) SetFormat(format string) {
c.format = format
}
func (c *ConsoleLogWriter) run(out io.Writer) {
for rec := range c.w {
fmt.Fprint(out, FormatLogRecord(c.format, rec))
}
}
// This is the ConsoleLogWriter's output method. This will block if the output
// buffer is full.
func (c *ConsoleLogWriter) LogWrite(rec *LogRecord) {
c.w <- rec
}
// Close stops the logger from sending messages to standard output. Attempts to
// send log messages to this logger after a Close have undefined behavior.
func (c *ConsoleLogWriter) Close() {
close(c.w)
time.Sleep(50 * time.Millisecond) // Try to give console I/O time to complete
}