mirror of
https://github.com/ceph/ceph-csi.git
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65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
/*
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*
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* Copyright 2018 gRPC authors.
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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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*
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*/
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package binarylog
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import (
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"io"
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"github.com/golang/protobuf/proto"
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pb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
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"google.golang.org/grpc/grpclog"
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)
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var (
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defaultSink Sink = &noopSink{} // TODO(blog): change this default (file in /tmp).
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)
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// SetDefaultSink sets the sink where binary logs will be written to.
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//
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// Not thread safe. Only set during initialization.
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func SetDefaultSink(s Sink) {
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defaultSink = s
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}
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// Sink writes log entry into the binary log sink.
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type Sink interface {
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Write(*pb.GrpcLogEntry)
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}
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type noopSink struct{}
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func (ns *noopSink) Write(*pb.GrpcLogEntry) {}
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// NewWriterSink creates a binary log sink with the given writer.
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func NewWriterSink(w io.Writer) Sink {
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return &writerSink{out: w}
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}
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type writerSink struct {
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out io.Writer
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}
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func (fs *writerSink) Write(e *pb.GrpcLogEntry) {
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b, err := proto.Marshal(e)
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if err != nil {
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grpclog.Infof("binary logging: failed to marshal proto message: %v", err)
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}
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fs.out.Write(b)
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}
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