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- // Copyright 2017 Google Inc. All rights reserved.
- //
- // 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 build
- import (
- "context"
- "io"
- "android/soong/ui/logger"
- "android/soong/ui/metrics"
- soong_metrics_proto "android/soong/ui/metrics/metrics_proto"
- "android/soong/ui/status"
- "android/soong/ui/tracer"
- )
- // Context combines a context.Context, logger.Logger, and terminal.Writer.
- // These all are agnostic of the current build, and may be used for multiple
- // builds, while the Config objects contain per-build information.
- type Context struct{ *ContextImpl }
- type ContextImpl struct {
- context.Context
- logger.Logger
- Metrics *metrics.Metrics
- Writer io.Writer
- Status *status.Status
- Thread tracer.Thread
- Tracer tracer.Tracer
- CriticalPath *status.CriticalPath
- }
- // BeginTrace starts a new Duration Event.
- func (c ContextImpl) BeginTrace(name, desc string) {
- if c.Tracer != nil {
- c.Tracer.Begin(desc, c.Thread)
- }
- if c.Metrics != nil {
- c.Metrics.EventTracer.Begin(name, desc)
- }
- }
- // EndTrace finishes the last Duration Event.
- func (c ContextImpl) EndTrace() {
- if c.Tracer != nil {
- c.Tracer.End(c.Thread)
- }
- if c.Metrics != nil {
- c.Metrics.SetTimeMetrics(c.Metrics.EventTracer.End())
- }
- }
- // CompleteTrace writes a trace with a beginning and end times.
- func (c ContextImpl) CompleteTrace(name, desc string, begin, end uint64) {
- if c.Tracer != nil {
- c.Tracer.Complete(desc, c.Thread, begin, end)
- }
- if c.Metrics != nil {
- realTime := end - begin
- c.Metrics.SetTimeMetrics(
- soong_metrics_proto.PerfInfo{
- Description: &desc,
- Name: &name,
- StartTime: &begin,
- RealTime: &realTime})
- }
- }
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