blob: 2162f51f146162f5890afcba08fdafdc65162ee7 [file] [log] [blame]
// Copyright (C) 2016 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package log
// The context key used to store a tag in the log context
const TagKey = "tag"
// GetTag gets the tag stored in the given context.
func GetTag(ctx Context) string {
tag, _ := ctx.Value(TagKey).(string)
return tag
}
// Tag returns a context with the tag set.
func (ctx logContext) Tag(tag string) Context {
return ctx.setValue(TagKey, tag)
}
// Tag returns a logger with the tag set if the logger is active.
func (l Logger) Tag(tag string) Logger {
if l.Active() {
l.updateUnkeyed(TagKey, tag)
}
return l
}