| // Copyright 2019 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package protocol |
| |
| import ( |
| "context" |
| "time" |
| ) |
| |
| // detatch returns a context that keeps all the values of its parent context |
| // but detatches from the cancellation and error handling. |
| func detatchContext(ctx context.Context) context.Context { return detatchedContext{ctx} } |
| |
| type detatchedContext struct{ parent context.Context } |
| |
| func (v detatchedContext) Deadline() (time.Time, bool) { return time.Time{}, false } |
| func (v detatchedContext) Done() <-chan struct{} { return nil } |
| func (v detatchedContext) Err() error { return nil } |
| func (v detatchedContext) Value(key interface{}) interface{} { return v.parent.Value(key) } |