139 lines
4 KiB
Go
139 lines
4 KiB
Go
// Copyright 2018 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tracer
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import (
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"strings"
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"time"
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"android/soong/ui/status"
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)
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func (t *tracerImpl) StatusTracer() status.StatusOutput {
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return &statusOutput{
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tracer: t,
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running: map[*status.Action]actionStatus{},
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}
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}
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type actionStatus struct {
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cpu int
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start time.Time
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}
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type statusOutput struct {
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tracer *tracerImpl
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cpus []bool
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running map[*status.Action]actionStatus
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}
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func (s *statusOutput) StartAction(action *status.Action, counts status.Counts) {
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cpu := -1
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for i, busy := range s.cpus {
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if !busy {
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cpu = i
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s.cpus[i] = true
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break
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}
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}
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if cpu == -1 {
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cpu = len(s.cpus)
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s.cpus = append(s.cpus, true)
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}
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s.running[action] = actionStatus{
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cpu: cpu,
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start: time.Now(),
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}
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}
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func (s *statusOutput) parseTags(rawTags string) map[string]string {
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if rawTags == "" {
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return nil
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}
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tags := map[string]string{}
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for _, pair := range strings.Split(rawTags, ";") {
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if pair == "" {
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// Ignore empty tag pairs. It's hard to generate these cleanly from
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// make so some tag strings might be something like ";key=value".
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continue
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}
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parts := strings.SplitN(pair, "=", 2)
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tags[parts[0]] = parts[1]
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}
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return tags
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}
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func (s *statusOutput) FinishAction(result status.ActionResult, counts status.Counts) {
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start, ok := s.running[result.Action]
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if !ok {
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return
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}
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delete(s.running, result.Action)
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s.cpus[start.cpu] = false
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str := result.Action.Description
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if len(result.Action.Outputs) > 0 {
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str = result.Action.Outputs[0]
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}
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s.tracer.writeEvent(&viewerEvent{
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Name: str,
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Phase: "X",
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Time: uint64(start.start.UnixNano()) / 1000,
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Dur: uint64(time.Since(start.start).Nanoseconds()) / 1000,
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Pid: 1,
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Tid: uint64(start.cpu),
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Arg: &statsArg{
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UserTime: result.Stats.UserTime,
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SystemTime: result.Stats.SystemTime,
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MaxRssKB: result.Stats.MaxRssKB,
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MinorPageFaults: result.Stats.MinorPageFaults,
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MajorPageFaults: result.Stats.MajorPageFaults,
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IOInputKB: result.Stats.IOInputKB,
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IOOutputKB: result.Stats.IOOutputKB,
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VoluntaryContextSwitches: result.Stats.VoluntaryContextSwitches,
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InvoluntaryContextSwitches: result.Stats.InvoluntaryContextSwitches,
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Tags: s.parseTags(result.Stats.Tags),
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ChangedInputs: result.Action.ChangedInputs,
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},
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})
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}
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type statsArg struct {
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UserTime uint32 `json:"user_time"`
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SystemTime uint32 `json:"system_time_ms"`
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MaxRssKB uint64 `json:"max_rss_kb"`
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MinorPageFaults uint64 `json:"minor_page_faults"`
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MajorPageFaults uint64 `json:"major_page_faults"`
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IOInputKB uint64 `json:"io_input_kb"`
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IOOutputKB uint64 `json:"io_output_kb"`
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VoluntaryContextSwitches uint64 `json:"voluntary_context_switches"`
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InvoluntaryContextSwitches uint64 `json:"involuntary_context_switches"`
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Tags map[string]string `json:"tags"`
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ChangedInputs []string `json:"changed_inputs"`
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}
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func (s *statusOutput) Flush() {}
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func (s *statusOutput) Message(level status.MsgLevel, message string) {}
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func (s *statusOutput) Write(p []byte) (int, error) {
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// Discard writes
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return len(p), nil
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}
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