58 lines
908 B
Go
58 lines
908 B
Go
package log
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import (
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"fmt"
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"os"
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"sync"
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"time"
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)
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var globalBuffer struct {
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sync.Mutex
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entries []Entry
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handlers []func(Entry)
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}
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func init() {
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AddEntryHandler(func(entry Entry) {
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fmt.Fprintln(os.Stderr, entry)
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})
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}
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type Entry struct {
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Time time.Time
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Msg string
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}
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func (entry Entry) String() string {
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return entry.Time.Format(time.Stamp) + ": " + entry.Msg
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}
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// AddEntryHandler adds a handler, which will run asynchronously.
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func AddEntryHandler(fn func(Entry)) {
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globalBuffer.handlers = append(globalBuffer.handlers, fn)
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}
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func Error(err error) {
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Write("Error: " + err.Error())
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}
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func Write(msg string) {
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WriteEntry(Entry{
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Time: time.Now(),
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Msg: msg,
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})
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}
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func WriteEntry(entry Entry) {
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go func() {
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globalBuffer.Lock()
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globalBuffer.entries = append(globalBuffer.entries, entry)
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globalBuffer.Unlock()
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for _, fn := range globalBuffer.handlers {
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fn(entry)
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}
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}()
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}
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