fix recorders

recorder/file.go

@@ -4,24 +4,34 @@ import (
 	"context"
 	"io"
 
+	"github.com/go-gost/core/metrics"
 	"github.com/go-gost/core/recorder"
+	xmetrics "github.com/go-gost/x/metrics"
 )
 
 type fileRecorderOptions struct {
-	sep string
+	recorder string
+	sep      string
 }
 
 type FileRecorderOption func(opts *fileRecorderOptions)
 
-func SepRecorderOption(sep string) FileRecorderOption {
+func RecorderFileRecorderOption(recorder string) FileRecorderOption {
+	return func(opts *fileRecorderOptions) {
+		opts.recorder = recorder
+	}
+}
+
+func SepFileRecorderOption(sep string) FileRecorderOption {
 	return func(opts *fileRecorderOptions) {
 		opts.sep = sep
 	}
 }
 
 type fileRecorder struct {
-	out io.WriteCloser
-	sep string
+	recorder string
+	out      io.WriteCloser
+	sep      string
 }
 
 // FileRecorder records data to file.
@@ -32,12 +42,15 @@ func FileRecorder(out io.WriteCloser, opts ...FileRecorderOption) recorder.Recor
 	}
 
 	return &fileRecorder{
-		out: out,
-		sep: options.sep,
+		recorder: options.recorder,
+		out:      out,
+		sep:      options.sep,
 	}
 }
 
 func (r *fileRecorder) Record(ctx context.Context, b []byte, opts ...recorder.RecordOption) error {
+	xmetrics.GetCounter(xmetrics.MetricRecorderRecordsCounter, metrics.Labels{"recorder": r.recorder}).Inc()
+
 	if _, err := r.out.Write(b); err != nil {
 		return err
 	}