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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"
"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
}
// 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, c.Thread)
}
}
// 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(c.Thread))
}
}
// 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{
Desc: &desc,
Name: &name,
StartTime: &begin,
RealTime: &realTime})
}
}
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