| // Copyright 2018, OpenCensus Authors |
| // |
| // 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. |
| |
| // +build go1.9 |
| |
| package tag |
| |
| import ( |
| "context" |
| "runtime/pprof" |
| ) |
| |
| func do(ctx context.Context, f func(ctx context.Context)) { |
| m := FromContext(ctx) |
| keyvals := make([]string, 0, 2*len(m.m)) |
| for k, v := range m.m { |
| keyvals = append(keyvals, k.Name(), v) |
| } |
| pprof.Do(ctx, pprof.Labels(keyvals...), f) |
| } |
