vendor/go.opencensus.io/tag/profile_19.go

   1 // Copyright 2018, OpenCensus Authors
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 // +build go1.9
  16
  17 package tag
  18
  19 import (
  20         "context"
  21         "runtime/pprof"
  22 )
  23
  24 func do(ctx context.Context, f func(ctx context.Context)) {
  25         m := FromContext(ctx)
  26         keyvals := make([]string, 0, 2*len(m.m))
  27         for k, v := range m.m {
  28                 keyvals = append(keyvals, k.Name(), v)
  29         }
  30         pprof.Do(ctx, pprof.Labels(keyvals...), f)
  31 }