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568 lines
16 KiB
568 lines
16 KiB
// Copyright 2014 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 profile
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import (
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"errors"
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"sort"
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)
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func (p *Profile) decoder() []decoder {
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return profileDecoder
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}
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// preEncode populates the unexported fields to be used by encode
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// (with suffix X) from the corresponding exported fields. The
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// exported fields are cleared up to facilitate testing.
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func (p *Profile) preEncode() {
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strings := make(map[string]int)
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addString(strings, "")
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for _, st := range p.SampleType {
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st.typeX = addString(strings, st.Type)
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st.unitX = addString(strings, st.Unit)
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}
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for _, s := range p.Sample {
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s.labelX = nil
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var keys []string
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for k := range s.Label {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for _, k := range keys {
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vs := s.Label[k]
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for _, v := range vs {
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s.labelX = append(s.labelX,
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label{
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keyX: addString(strings, k),
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strX: addString(strings, v),
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},
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)
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}
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}
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var numKeys []string
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for k := range s.NumLabel {
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numKeys = append(numKeys, k)
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}
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sort.Strings(numKeys)
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for _, k := range numKeys {
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keyX := addString(strings, k)
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vs := s.NumLabel[k]
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units := s.NumUnit[k]
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for i, v := range vs {
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var unitX int64
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if len(units) != 0 {
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unitX = addString(strings, units[i])
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}
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s.labelX = append(s.labelX,
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label{
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keyX: keyX,
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numX: v,
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unitX: unitX,
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},
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)
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}
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}
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s.locationIDX = make([]uint64, len(s.Location))
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for i, loc := range s.Location {
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s.locationIDX[i] = loc.ID
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}
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}
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for _, m := range p.Mapping {
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m.fileX = addString(strings, m.File)
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m.buildIDX = addString(strings, m.BuildID)
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}
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for _, l := range p.Location {
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for i, ln := range l.Line {
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if ln.Function != nil {
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l.Line[i].functionIDX = ln.Function.ID
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} else {
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l.Line[i].functionIDX = 0
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}
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}
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if l.Mapping != nil {
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l.mappingIDX = l.Mapping.ID
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} else {
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l.mappingIDX = 0
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}
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}
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for _, f := range p.Function {
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f.nameX = addString(strings, f.Name)
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f.systemNameX = addString(strings, f.SystemName)
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f.filenameX = addString(strings, f.Filename)
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}
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p.dropFramesX = addString(strings, p.DropFrames)
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p.keepFramesX = addString(strings, p.KeepFrames)
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if pt := p.PeriodType; pt != nil {
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pt.typeX = addString(strings, pt.Type)
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pt.unitX = addString(strings, pt.Unit)
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}
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p.commentX = nil
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for _, c := range p.Comments {
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p.commentX = append(p.commentX, addString(strings, c))
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}
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p.defaultSampleTypeX = addString(strings, p.DefaultSampleType)
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p.stringTable = make([]string, len(strings))
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for s, i := range strings {
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p.stringTable[i] = s
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}
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}
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func (p *Profile) encode(b *buffer) {
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for _, x := range p.SampleType {
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encodeMessage(b, 1, x)
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}
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for _, x := range p.Sample {
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encodeMessage(b, 2, x)
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}
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for _, x := range p.Mapping {
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encodeMessage(b, 3, x)
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}
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for _, x := range p.Location {
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encodeMessage(b, 4, x)
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}
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for _, x := range p.Function {
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encodeMessage(b, 5, x)
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}
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encodeStrings(b, 6, p.stringTable)
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encodeInt64Opt(b, 7, p.dropFramesX)
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encodeInt64Opt(b, 8, p.keepFramesX)
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encodeInt64Opt(b, 9, p.TimeNanos)
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encodeInt64Opt(b, 10, p.DurationNanos)
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if pt := p.PeriodType; pt != nil && (pt.typeX != 0 || pt.unitX != 0) {
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encodeMessage(b, 11, p.PeriodType)
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}
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encodeInt64Opt(b, 12, p.Period)
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encodeInt64s(b, 13, p.commentX)
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encodeInt64(b, 14, p.defaultSampleTypeX)
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}
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var profileDecoder = []decoder{
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nil, // 0
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// repeated ValueType sample_type = 1
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func(b *buffer, m message) error {
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x := new(ValueType)
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pp := m.(*Profile)
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pp.SampleType = append(pp.SampleType, x)
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return decodeMessage(b, x)
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},
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// repeated Sample sample = 2
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func(b *buffer, m message) error {
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x := new(Sample)
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pp := m.(*Profile)
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pp.Sample = append(pp.Sample, x)
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return decodeMessage(b, x)
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},
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// repeated Mapping mapping = 3
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func(b *buffer, m message) error {
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x := new(Mapping)
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pp := m.(*Profile)
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pp.Mapping = append(pp.Mapping, x)
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return decodeMessage(b, x)
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},
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// repeated Location location = 4
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func(b *buffer, m message) error {
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x := new(Location)
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x.Line = make([]Line, 0, 8) // Pre-allocate Line buffer
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pp := m.(*Profile)
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pp.Location = append(pp.Location, x)
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err := decodeMessage(b, x)
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var tmp []Line
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x.Line = append(tmp, x.Line...) // Shrink to allocated size
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return err
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},
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// repeated Function function = 5
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func(b *buffer, m message) error {
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x := new(Function)
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pp := m.(*Profile)
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pp.Function = append(pp.Function, x)
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return decodeMessage(b, x)
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},
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// repeated string string_table = 6
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func(b *buffer, m message) error {
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err := decodeStrings(b, &m.(*Profile).stringTable)
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if err != nil {
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return err
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}
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if m.(*Profile).stringTable[0] != "" {
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return errors.New("string_table[0] must be ''")
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}
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return nil
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},
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// int64 drop_frames = 7
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).dropFramesX) },
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// int64 keep_frames = 8
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).keepFramesX) },
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// int64 time_nanos = 9
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func(b *buffer, m message) error {
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if m.(*Profile).TimeNanos != 0 {
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return errConcatProfile
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}
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return decodeInt64(b, &m.(*Profile).TimeNanos)
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},
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// int64 duration_nanos = 10
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).DurationNanos) },
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// ValueType period_type = 11
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func(b *buffer, m message) error {
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x := new(ValueType)
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pp := m.(*Profile)
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pp.PeriodType = x
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return decodeMessage(b, x)
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},
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// int64 period = 12
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).Period) },
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// repeated int64 comment = 13
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func(b *buffer, m message) error { return decodeInt64s(b, &m.(*Profile).commentX) },
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// int64 defaultSampleType = 14
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).defaultSampleTypeX) },
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}
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// postDecode takes the unexported fields populated by decode (with
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// suffix X) and populates the corresponding exported fields.
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// The unexported fields are cleared up to facilitate testing.
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func (p *Profile) postDecode() error {
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var err error
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mappings := make(map[uint64]*Mapping, len(p.Mapping))
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mappingIds := make([]*Mapping, len(p.Mapping)+1)
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for _, m := range p.Mapping {
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m.File, err = getString(p.stringTable, &m.fileX, err)
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m.BuildID, err = getString(p.stringTable, &m.buildIDX, err)
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if m.ID < uint64(len(mappingIds)) {
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mappingIds[m.ID] = m
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} else {
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mappings[m.ID] = m
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}
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}
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functions := make(map[uint64]*Function, len(p.Function))
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functionIds := make([]*Function, len(p.Function)+1)
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for _, f := range p.Function {
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f.Name, err = getString(p.stringTable, &f.nameX, err)
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f.SystemName, err = getString(p.stringTable, &f.systemNameX, err)
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f.Filename, err = getString(p.stringTable, &f.filenameX, err)
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if f.ID < uint64(len(functionIds)) {
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functionIds[f.ID] = f
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} else {
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functions[f.ID] = f
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}
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}
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locations := make(map[uint64]*Location, len(p.Location))
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locationIds := make([]*Location, len(p.Location)+1)
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for _, l := range p.Location {
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if id := l.mappingIDX; id < uint64(len(mappingIds)) {
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l.Mapping = mappingIds[id]
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} else {
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l.Mapping = mappings[id]
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}
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l.mappingIDX = 0
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for i, ln := range l.Line {
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if id := ln.functionIDX; id != 0 {
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l.Line[i].functionIDX = 0
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if id < uint64(len(functionIds)) {
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l.Line[i].Function = functionIds[id]
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} else {
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l.Line[i].Function = functions[id]
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}
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}
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}
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if l.ID < uint64(len(locationIds)) {
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locationIds[l.ID] = l
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} else {
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locations[l.ID] = l
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}
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}
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for _, st := range p.SampleType {
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st.Type, err = getString(p.stringTable, &st.typeX, err)
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st.Unit, err = getString(p.stringTable, &st.unitX, err)
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}
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for _, s := range p.Sample {
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labels := make(map[string][]string, len(s.labelX))
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numLabels := make(map[string][]int64, len(s.labelX))
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numUnits := make(map[string][]string, len(s.labelX))
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for _, l := range s.labelX {
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var key, value string
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key, err = getString(p.stringTable, &l.keyX, err)
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if l.strX != 0 {
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value, err = getString(p.stringTable, &l.strX, err)
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labels[key] = append(labels[key], value)
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} else if l.numX != 0 {
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numValues := numLabels[key]
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units := numUnits[key]
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if l.unitX != 0 {
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var unit string
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unit, err = getString(p.stringTable, &l.unitX, err)
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units = padStringArray(units, len(numValues))
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numUnits[key] = append(units, unit)
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}
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numLabels[key] = append(numLabels[key], l.numX)
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}
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}
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if len(labels) > 0 {
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s.Label = labels
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}
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if len(numLabels) > 0 {
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s.NumLabel = numLabels
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for key, units := range numUnits {
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if len(units) > 0 {
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numUnits[key] = padStringArray(units, len(numLabels[key]))
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}
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}
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s.NumUnit = numUnits
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}
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s.Location = make([]*Location, len(s.locationIDX))
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for i, lid := range s.locationIDX {
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if lid < uint64(len(locationIds)) {
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s.Location[i] = locationIds[lid]
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} else {
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s.Location[i] = locations[lid]
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}
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}
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s.locationIDX = nil
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}
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p.DropFrames, err = getString(p.stringTable, &p.dropFramesX, err)
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p.KeepFrames, err = getString(p.stringTable, &p.keepFramesX, err)
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if pt := p.PeriodType; pt == nil {
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p.PeriodType = &ValueType{}
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}
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if pt := p.PeriodType; pt != nil {
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pt.Type, err = getString(p.stringTable, &pt.typeX, err)
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pt.Unit, err = getString(p.stringTable, &pt.unitX, err)
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}
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for _, i := range p.commentX {
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var c string
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c, err = getString(p.stringTable, &i, err)
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p.Comments = append(p.Comments, c)
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}
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p.commentX = nil
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p.DefaultSampleType, err = getString(p.stringTable, &p.defaultSampleTypeX, err)
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p.stringTable = nil
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return err
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}
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// padStringArray pads arr with enough empty strings to make arr
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// length l when arr's length is less than l.
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func padStringArray(arr []string, l int) []string {
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if l <= len(arr) {
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return arr
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}
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return append(arr, make([]string, l-len(arr))...)
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}
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func (p *ValueType) decoder() []decoder {
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return valueTypeDecoder
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}
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func (p *ValueType) encode(b *buffer) {
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encodeInt64Opt(b, 1, p.typeX)
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encodeInt64Opt(b, 2, p.unitX)
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}
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var valueTypeDecoder = []decoder{
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nil, // 0
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// optional int64 type = 1
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*ValueType).typeX) },
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// optional int64 unit = 2
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*ValueType).unitX) },
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}
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func (p *Sample) decoder() []decoder {
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return sampleDecoder
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}
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func (p *Sample) encode(b *buffer) {
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encodeUint64s(b, 1, p.locationIDX)
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encodeInt64s(b, 2, p.Value)
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for _, x := range p.labelX {
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encodeMessage(b, 3, x)
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}
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}
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var sampleDecoder = []decoder{
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nil, // 0
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// repeated uint64 location = 1
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func(b *buffer, m message) error { return decodeUint64s(b, &m.(*Sample).locationIDX) },
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// repeated int64 value = 2
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func(b *buffer, m message) error { return decodeInt64s(b, &m.(*Sample).Value) },
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// repeated Label label = 3
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func(b *buffer, m message) error {
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s := m.(*Sample)
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n := len(s.labelX)
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s.labelX = append(s.labelX, label{})
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return decodeMessage(b, &s.labelX[n])
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},
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}
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func (p label) decoder() []decoder {
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return labelDecoder
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}
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func (p label) encode(b *buffer) {
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encodeInt64Opt(b, 1, p.keyX)
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encodeInt64Opt(b, 2, p.strX)
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encodeInt64Opt(b, 3, p.numX)
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encodeInt64Opt(b, 4, p.unitX)
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}
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var labelDecoder = []decoder{
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nil, // 0
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// optional int64 key = 1
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*label).keyX) },
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// optional int64 str = 2
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*label).strX) },
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// optional int64 num = 3
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*label).numX) },
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// optional int64 num = 4
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*label).unitX) },
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}
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func (p *Mapping) decoder() []decoder {
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return mappingDecoder
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}
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func (p *Mapping) encode(b *buffer) {
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encodeUint64Opt(b, 1, p.ID)
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encodeUint64Opt(b, 2, p.Start)
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encodeUint64Opt(b, 3, p.Limit)
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encodeUint64Opt(b, 4, p.Offset)
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encodeInt64Opt(b, 5, p.fileX)
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encodeInt64Opt(b, 6, p.buildIDX)
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encodeBoolOpt(b, 7, p.HasFunctions)
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encodeBoolOpt(b, 8, p.HasFilenames)
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encodeBoolOpt(b, 9, p.HasLineNumbers)
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encodeBoolOpt(b, 10, p.HasInlineFrames)
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}
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var mappingDecoder = []decoder{
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nil, // 0
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func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).ID) }, // optional uint64 id = 1
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func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Start) }, // optional uint64 memory_offset = 2
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func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Limit) }, // optional uint64 memory_limit = 3
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func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Offset) }, // optional uint64 file_offset = 4
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Mapping).fileX) }, // optional int64 filename = 5
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func(b *buffer, m message) error { return decodeInt64(b, &m.(*Mapping).buildIDX) }, // optional int64 build_id = 6
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func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasFunctions) }, // optional bool has_functions = 7
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func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasFilenames) }, // optional bool has_filenames = 8
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func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasLineNumbers) }, // optional bool has_line_numbers = 9
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func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasInlineFrames) }, // optional bool has_inline_frames = 10
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}
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func (p *Location) decoder() []decoder {
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return locationDecoder
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}
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func (p *Location) encode(b *buffer) {
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encodeUint64Opt(b, 1, p.ID)
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encodeUint64Opt(b, 2, p.mappingIDX)
|
|
encodeUint64Opt(b, 3, p.Address)
|
|
for i := range p.Line {
|
|
encodeMessage(b, 4, &p.Line[i])
|
|
}
|
|
encodeBoolOpt(b, 5, p.IsFolded)
|
|
}
|
|
|
|
var locationDecoder = []decoder{
|
|
nil, // 0
|
|
func(b *buffer, m message) error { return decodeUint64(b, &m.(*Location).ID) }, // optional uint64 id = 1;
|
|
func(b *buffer, m message) error { return decodeUint64(b, &m.(*Location).mappingIDX) }, // optional uint64 mapping_id = 2;
|
|
func(b *buffer, m message) error { return decodeUint64(b, &m.(*Location).Address) }, // optional uint64 address = 3;
|
|
func(b *buffer, m message) error { // repeated Line line = 4
|
|
pp := m.(*Location)
|
|
n := len(pp.Line)
|
|
pp.Line = append(pp.Line, Line{})
|
|
return decodeMessage(b, &pp.Line[n])
|
|
},
|
|
func(b *buffer, m message) error { return decodeBool(b, &m.(*Location).IsFolded) }, // optional bool is_folded = 5;
|
|
}
|
|
|
|
func (p *Line) decoder() []decoder {
|
|
return lineDecoder
|
|
}
|
|
|
|
func (p *Line) encode(b *buffer) {
|
|
encodeUint64Opt(b, 1, p.functionIDX)
|
|
encodeInt64Opt(b, 2, p.Line)
|
|
}
|
|
|
|
var lineDecoder = []decoder{
|
|
nil, // 0
|
|
// optional uint64 function_id = 1
|
|
func(b *buffer, m message) error { return decodeUint64(b, &m.(*Line).functionIDX) },
|
|
// optional int64 line = 2
|
|
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Line).Line) },
|
|
}
|
|
|
|
func (p *Function) decoder() []decoder {
|
|
return functionDecoder
|
|
}
|
|
|
|
func (p *Function) encode(b *buffer) {
|
|
encodeUint64Opt(b, 1, p.ID)
|
|
encodeInt64Opt(b, 2, p.nameX)
|
|
encodeInt64Opt(b, 3, p.systemNameX)
|
|
encodeInt64Opt(b, 4, p.filenameX)
|
|
encodeInt64Opt(b, 5, p.StartLine)
|
|
}
|
|
|
|
var functionDecoder = []decoder{
|
|
nil, // 0
|
|
// optional uint64 id = 1
|
|
func(b *buffer, m message) error { return decodeUint64(b, &m.(*Function).ID) },
|
|
// optional int64 function_name = 2
|
|
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Function).nameX) },
|
|
// optional int64 function_system_name = 3
|
|
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Function).systemNameX) },
|
|
// repeated int64 filename = 4
|
|
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Function).filenameX) },
|
|
// optional int64 start_line = 5
|
|
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Function).StartLine) },
|
|
}
|
|
|
|
func addString(strings map[string]int, s string) int64 {
|
|
i, ok := strings[s]
|
|
if !ok {
|
|
i = len(strings)
|
|
strings[s] = i
|
|
}
|
|
return int64(i)
|
|
}
|
|
|
|
func getString(strings []string, strng *int64, err error) (string, error) {
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
s := int(*strng)
|
|
if s < 0 || s >= len(strings) {
|
|
return "", errMalformed
|
|
}
|
|
*strng = 0
|
|
return strings[s], nil
|
|
}
|