micro/debug/log/os.go
Asim Aslam 563768b58a
v3 refactor (#1868)
* Move to v3

Co-authored-by: Ben Toogood <bentoogood@gmail.com>
2020-07-27 13:22:00 +01:00

82 lines
1.2 KiB
Go

package log
import (
"sync"
"github.com/google/uuid"
"github.com/micro/go-micro/v3/util/ring"
)
// Should stream from OS
type osLog struct {
format FormatFunc
once sync.Once
sync.RWMutex
buffer *ring.Buffer
subs map[string]*osStream
}
type osStream struct {
stream chan Record
}
// Read reads log entries from the logger
func (o *osLog) Read(...ReadOption) ([]Record, error) {
var records []Record
// read the last 100 records
for _, v := range o.buffer.Get(100) {
records = append(records, v.Value.(Record))
}
return records, nil
}
// Write writes records to log
func (o *osLog) Write(r Record) error {
o.buffer.Put(r)
return nil
}
// Stream log records
func (o *osLog) Stream() (Stream, error) {
o.Lock()
defer o.Unlock()
// create stream
st := &osStream{
stream: make(chan Record, 128),
}
// save stream
o.subs[uuid.New().String()] = st
return st, nil
}
func (o *osStream) Chan() <-chan Record {
return o.stream
}
func (o *osStream) Stop() error {
return nil
}
func NewLog(opts ...Option) Log {
options := Options{
Format: DefaultFormat,
}
for _, o := range opts {
o(&options)
}
l := &osLog{
format: options.Format,
buffer: ring.New(1024),
subs: make(map[string]*osStream),
}
return l
}