platform_build_soong/ui/metrics/time.go
Patrice Arruda 0cc5b21516 Soong: Fix the package name in metrics.proto file
The metrics.proto needs to be imported to Google3 in order to unmarshal
the build metrics data from bigstore. Cleaned up the enum names to use
the Camel naming convention and renamed the build_metrics to
soong_metrics to be more specific to soong and to allow quering
soong_metrics files from bigstore.

Bug: b/135280521
Test: lunch andf m -j. Checked if soong_metrics was generated correctly
      by using printproto command.

Change-Id: I998c8d05db592e94a653d6ca32250b80df3c9b21
2019-06-14 15:27:46 -07:00

71 lines
2 KiB
Go

// Copyright 2018 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 metrics
import (
"time"
"android/soong/ui/metrics/metrics_proto"
"android/soong/ui/tracer"
)
type timeEvent struct {
desc string
name string
atNanos uint64 // timestamp measured in nanoseconds since the reference date
}
type TimeTracer interface {
Begin(name, desc string, thread tracer.Thread)
End(thread tracer.Thread) soong_metrics_proto.PerfInfo
}
type timeTracerImpl struct {
activeEvents []timeEvent
}
var _ TimeTracer = &timeTracerImpl{}
func (t *timeTracerImpl) now() uint64 {
return uint64(time.Now().UnixNano())
}
func (t *timeTracerImpl) Begin(name, desc string, thread tracer.Thread) {
t.beginAt(name, desc, t.now())
}
func (t *timeTracerImpl) beginAt(name, desc string, atNanos uint64) {
t.activeEvents = append(t.activeEvents, timeEvent{name: name, desc: desc, atNanos: atNanos})
}
func (t *timeTracerImpl) End(thread tracer.Thread) soong_metrics_proto.PerfInfo {
return t.endAt(t.now())
}
func (t *timeTracerImpl) endAt(atNanos uint64) soong_metrics_proto.PerfInfo {
if len(t.activeEvents) < 1 {
panic("Internal error: No pending events for endAt to end!")
}
lastEvent := t.activeEvents[len(t.activeEvents)-1]
t.activeEvents = t.activeEvents[:len(t.activeEvents)-1]
realTime := atNanos - lastEvent.atNanos
return soong_metrics_proto.PerfInfo{
Desc: &lastEvent.desc,
Name: &lastEvent.name,
StartTime: &lastEvent.atNanos,
RealTime: &realTime}
}