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-rw-r--r--base/test/trace_event_analyzer.cc697
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diff --git a/base/test/trace_event_analyzer.cc b/base/test/trace_event_analyzer.cc
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index 3e0f373..0000000
--- a/base/test/trace_event_analyzer.cc
+++ /dev/null
@@ -1,697 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/test/trace_event_analyzer.h"
-
-#include <algorithm>
-#include <math.h>
-
-#include "base/json/json_reader.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/values.h"
-
-namespace trace_analyzer {
-
-// TraceEvent
-
-TraceEvent::TraceEvent()
- : thread(0, 0),
- timestamp(0),
- phase(base::debug::TRACE_EVENT_PHASE_BEGIN),
- other_event(NULL) {
-}
-
-TraceEvent::~TraceEvent() {
-}
-
-bool TraceEvent::SetFromJSON(const base::Value* event_value) {
- if (event_value->GetType() != base::Value::TYPE_DICTIONARY)
- return false;
- const base::DictionaryValue* dictionary =
- static_cast<const base::DictionaryValue*>(event_value);
-
- std::string phase_str;
- base::DictionaryValue* args = NULL;
-
- if (dictionary->GetInteger("pid", &thread.process_id) &&
- dictionary->GetInteger("tid", &thread.thread_id) &&
- dictionary->GetDouble("ts", &timestamp) &&
- dictionary->GetString("cat", &category) &&
- dictionary->GetString("name", &name) &&
- dictionary->GetString("ph", &phase_str) &&
- dictionary->GetDictionary("args", &args)) {
-
- phase = base::debug::TraceEvent::GetPhase(phase_str.c_str());
-
- // For each argument, copy the type and create a trace_analyzer::TraceValue.
- base::DictionaryValue::key_iterator keyi = args->begin_keys();
- for (; keyi != args->end_keys(); ++keyi) {
- std::string str;
- bool boolean = false;
- int int_num = 0;
- double double_num = 0.0;
- Value* value = NULL;
- if (args->GetWithoutPathExpansion(*keyi, &value)) {
- if (value->GetAsString(&str))
- arg_strings[*keyi] = str;
- else if (value->GetAsInteger(&int_num))
- arg_numbers[*keyi] = static_cast<double>(int_num);
- else if (value->GetAsBoolean(&boolean))
- arg_numbers[*keyi] = static_cast<double>(boolean ? 1 : 0);
- else if (value->GetAsDouble(&double_num))
- arg_numbers[*keyi] = double_num;
- else
- return false; // Invalid trace event JSON format.
- }
- }
-
- return true;
- }
-
- return false;
-}
-
-bool TraceEvent::GetAbsTimeToOtherEvent(double* duration) const {
- if (!other_event)
- return false;
-
- *duration = fabs(other_event->timestamp - timestamp);
- return true;
-}
-
-bool TraceEvent::GetArgAsString(const std::string& name,
- std::string* arg) const {
- std::map<std::string, std::string>::const_iterator i = arg_strings.find(name);
- if (i != arg_strings.end()) {
- *arg = i->second;
- return true;
- }
- return false;
-}
-
-bool TraceEvent::GetArgAsNumber(const std::string& name,
- double* arg) const {
- std::map<std::string, double>::const_iterator i = arg_numbers.find(name);
- if (i != arg_numbers.end()) {
- *arg = i->second;
- return true;
- }
- return false;
-}
-
-// QueryNode
-
-QueryNode::QueryNode(const Query& query) : query_(query) {
-}
-
-QueryNode::~QueryNode() {
-}
-
-// Query
-
-Query::Query(TraceEventMember member)
- : type_(QUERY_EVENT_MEMBER),
- operator_(OP_INVALID),
- member_(member),
- number_(0),
- is_pattern_(false) {
-}
-
-Query::Query(TraceEventMember member, const std::string& arg_name)
- : type_(QUERY_EVENT_MEMBER),
- operator_(OP_INVALID),
- member_(member),
- number_(0),
- string_(arg_name),
- is_pattern_(false) {
-}
-
-Query::Query(const Query& query)
- : type_(query.type_),
- operator_(query.operator_),
- left_(query.left_),
- right_(query.right_),
- member_(query.member_),
- number_(query.number_),
- string_(query.string_),
- is_pattern_(query.is_pattern_) {
-}
-
-Query::~Query() {
-}
-
-Query Query::String(const std::string& str) {
- return Query(str);
-}
-
-Query Query::Double(double num) {
- return Query(num);
-}
-
-Query Query::Int(int32 num) {
- return Query(static_cast<double>(num));
-}
-
-Query Query::Uint(uint32 num) {
- return Query(static_cast<double>(num));
-}
-
-Query Query::Bool(bool boolean) {
- return Query(boolean ? 1.0 : 0.0);
-}
-
-Query Query::Phase(base::debug::TraceEventPhase phase) {
- return Query(static_cast<double>(phase));
-}
-
-Query Query::Pattern(const std::string& pattern) {
- Query query(pattern);
- query.is_pattern_ = true;
- return query;
-}
-
-bool Query::Evaluate(const TraceEvent& event) const {
- // First check for values that can convert to bool.
-
- // double is true if != 0:
- double bool_value = 0.0;
- bool is_bool = GetAsDouble(event, &bool_value);
- if (is_bool)
- return (bool_value != 0.0);
-
- // string is true if it is non-empty:
- std::string str_value;
- bool is_str = GetAsString(event, &str_value);
- if (is_str)
- return !str_value.empty();
-
- DCHECK(type_ == QUERY_BOOLEAN_OPERATOR)
- << "Invalid query: missing boolean expression";
- DCHECK(left_.get() && (right_.get() || is_unary_operator()));
-
- if (is_comparison_operator()) {
- DCHECK(left().is_value() && right().is_value())
- << "Invalid query: comparison operator used between event member and "
- "value.";
- bool compare_result = false;
- if (CompareAsDouble(event, &compare_result))
- return compare_result;
- else if (CompareAsString(event, &compare_result))
- return compare_result;
- return false;
- } else {
- switch (operator_) {
- case OP_AND:
- return left().Evaluate(event) && right().Evaluate(event);
- case OP_OR:
- return left().Evaluate(event) || right().Evaluate(event);
- case OP_NOT:
- return !left().Evaluate(event);
- default:
- NOTREACHED();
- }
- }
-
- NOTREACHED();
- return false;
-}
-
-bool Query::CompareAsDouble(const TraceEvent& event, bool* result) const {
- double lhs, rhs;
- if (!left().GetAsDouble(event, &lhs) || !right().GetAsDouble(event, &rhs))
- return false;
- switch (operator_) {
- case OP_EQ:
- *result = (lhs == rhs);
- return true;
- case OP_NE:
- *result = (lhs != rhs);
- return true;
- case OP_LT:
- *result = (lhs < rhs);
- return true;
- case OP_LE:
- *result = (lhs <= rhs);
- return true;
- case OP_GT:
- *result = (lhs > rhs);
- return true;
- case OP_GE:
- *result = (lhs >= rhs);
- return true;
- default:
- NOTREACHED();
- return false;
- }
- return true;
-}
-
-bool Query::CompareAsString(const TraceEvent& event, bool* result) const {
- std::string lhs, rhs;
- if (!left().GetAsString(event, &lhs) || !right().GetAsString(event, &rhs))
- return false;
- switch (operator_) {
- case OP_EQ:
- if (right().is_pattern_)
- *result = MatchPattern(lhs, rhs);
- else if (left().is_pattern_)
- *result = MatchPattern(rhs, lhs);
- else
- *result = (lhs == rhs);
- return true;
- case OP_NE:
- if (right().is_pattern_)
- *result = !MatchPattern(lhs, rhs);
- else if (left().is_pattern_)
- *result = !MatchPattern(rhs, lhs);
- else
- *result = (lhs != rhs);
- return true;
- case OP_LT:
- *result = (lhs < rhs);
- return true;
- case OP_LE:
- *result = (lhs <= rhs);
- return true;
- case OP_GT:
- *result = (lhs > rhs);
- return true;
- case OP_GE:
- *result = (lhs >= rhs);
- return true;
- default:
- NOTREACHED();
- return false;
- }
- return true;
-}
-
-bool Query::EvaluateArithmeticOperator(const TraceEvent& event,
- double* num) const {
- DCHECK(type_ == QUERY_ARITHMETIC_OPERATOR);
- DCHECK(left_.get() && (right_.get() || is_unary_operator()));
-
- double lhs = 0, rhs = 0;
- if (!left().GetAsDouble(event, &lhs))
- return false;
- if (!is_unary_operator() && !right().GetAsDouble(event, &rhs))
- return false;
-
- switch (operator_) {
- case OP_ADD:
- *num = lhs + rhs;
- return true;
- case OP_SUB:
- *num = lhs - rhs;
- return true;
- case OP_MUL:
- *num = lhs * rhs;
- return true;
- case OP_DIV:
- *num = lhs / rhs;
- return true;
- case OP_MOD:
- *num = static_cast<double>(static_cast<int64>(lhs) %
- static_cast<int64>(rhs));
- return true;
- case OP_NEGATE:
- *num = -lhs;
- return true;
- default:
- NOTREACHED();
- return false;
- }
-}
-
-bool Query::GetAsDouble(const TraceEvent& event, double* num) const {
- base::debug::TraceValue value;
- switch (type_) {
- case QUERY_ARITHMETIC_OPERATOR:
- return EvaluateArithmeticOperator(event, num);
- case QUERY_EVENT_MEMBER:
- value = GetMemberValue(event);
- if (value.type() == base::debug::TraceValue::TRACE_TYPE_DOUBLE) {
- *num = value.as_double();
- return true;
- }
- return false;
- case QUERY_NUMBER:
- *num = number_;
- return true;
- default:
- return false;
- }
-}
-
-bool Query::GetAsString(const TraceEvent& event, std::string* str) const {
- base::debug::TraceValue value;
- switch (type_) {
- case QUERY_EVENT_MEMBER:
- value = GetMemberValue(event);
- if (value.is_string()) {
- *str = value.as_string();
- return true;
- }
- return false;
- case QUERY_STRING:
- *str = string_;
- return true;
- default:
- return false;
- }
-}
-
-base::debug::TraceValue Query::GetMemberValue(const TraceEvent& event) const {
- DCHECK(type_ == QUERY_EVENT_MEMBER);
-
- // This could be a request for a member of |event| or a member of |event|'s
- // associated event. Store the target event in the_event:
- const TraceEvent* the_event = (member_ < OTHER_PID) ?
- &event : event.other_event;
-
- // Request for member of associated event, but there is no associated event.
- if (!the_event)
- return base::debug::TraceValue();
-
- switch (member_) {
- case EVENT_PID:
- case OTHER_PID:
- return static_cast<double>(the_event->thread.process_id);
- case EVENT_TID:
- case OTHER_TID:
- return static_cast<double>(the_event->thread.thread_id);
- case EVENT_TIME:
- case OTHER_TIME:
- return the_event->timestamp;
- case EVENT_DURATION:
- {
- double duration;
- if (the_event->GetAbsTimeToOtherEvent(&duration))
- return duration;
- else
- return base::debug::TraceValue();
- }
- case EVENT_PHASE:
- case OTHER_PHASE:
- return static_cast<double>(the_event->phase);
- case EVENT_CATEGORY:
- case OTHER_CATEGORY:
- return the_event->category;
- case EVENT_NAME:
- case OTHER_NAME:
- return the_event->name;
- case EVENT_HAS_ARG:
- case OTHER_HAS_ARG:
- // Search for the argument name and return true if found.
- return static_cast<double>((the_event->arg_strings.find(string_) !=
- the_event->arg_strings.end()) ||
- (the_event->arg_numbers.find(string_) !=
- the_event->arg_numbers.end()) ? 1 : 0);
- case EVENT_ARG:
- case OTHER_ARG:
- {
- // Search for the argument name and return its value if found.
-
- std::map<std::string, std::string>::const_iterator str_i =
- the_event->arg_strings.find(string_);
- if (str_i != the_event->arg_strings.end())
- return str_i->second;
-
- std::map<std::string, double>::const_iterator num_i =
- the_event->arg_numbers.find(string_);
- if (num_i != the_event->arg_numbers.end())
- return num_i->second;
-
- return base::debug::TraceValue();
- }
- case EVENT_HAS_OTHER:
- {
- // return 1.0 (true) if the other event exists
- double result = event.other_event ? 1.0 : 0.0;
- return result;
- }
- default:
- NOTREACHED();
- return base::debug::TraceValue();
- }
-}
-
-Query::Query(const std::string& str)
- : type_(QUERY_STRING),
- operator_(OP_INVALID),
- member_(EVENT_INVALID),
- number_(0),
- string_(str),
- is_pattern_(false) {
-}
-
-Query::Query(double num)
- : type_(QUERY_NUMBER),
- operator_(OP_INVALID),
- member_(EVENT_INVALID),
- number_(num),
- is_pattern_(false) {
-}
-const Query& Query::left() const {
- return left_->query();
-}
-
-const Query& Query::right() const {
- return right_->query();
-}
-
-Query Query::operator==(const Query& rhs) const {
- return Query(*this, rhs, OP_EQ);
-}
-
-Query Query::operator!=(const Query& rhs) const {
- return Query(*this, rhs, OP_NE);
-}
-
-Query Query::operator<(const Query& rhs) const {
- return Query(*this, rhs, OP_LT);
-}
-
-Query Query::operator<=(const Query& rhs) const {
- return Query(*this, rhs, OP_LE);
-}
-
-Query Query::operator>(const Query& rhs) const {
- return Query(*this, rhs, OP_GT);
-}
-
-Query Query::operator>=(const Query& rhs) const {
- return Query(*this, rhs, OP_GE);
-}
-
-Query Query::operator&&(const Query& rhs) const {
- return Query(*this, rhs, OP_AND);
-}
-
-Query Query::operator||(const Query& rhs) const {
- return Query(*this, rhs, OP_OR);
-}
-
-Query Query::operator!() const {
- return Query(*this, OP_NOT);
-}
-
-Query Query::operator+(const Query& rhs) const {
- return Query(*this, rhs, OP_ADD);
-}
-
-Query Query::operator-(const Query& rhs) const {
- return Query(*this, rhs, OP_SUB);
-}
-
-Query Query::operator*(const Query& rhs) const {
- return Query(*this, rhs, OP_MUL);
-}
-
-Query Query::operator/(const Query& rhs) const {
- return Query(*this, rhs, OP_DIV);
-}
-
-Query Query::operator%(const Query& rhs) const {
- return Query(*this, rhs, OP_MOD);
-}
-
-Query Query::operator-() const {
- return Query(*this, OP_NEGATE);
-}
-
-
-Query::Query(const Query& left, const Query& right, Operator binary_op)
- : operator_(binary_op),
- left_(new QueryNode(left)),
- right_(new QueryNode(right)),
- member_(EVENT_INVALID),
- number_(0) {
- type_ = (binary_op < OP_ADD ?
- QUERY_BOOLEAN_OPERATOR : QUERY_ARITHMETIC_OPERATOR);
-}
-
-Query::Query(const Query& left, Operator unary_op)
- : operator_(unary_op),
- left_(new QueryNode(left)),
- member_(EVENT_INVALID),
- number_(0) {
- type_ = (unary_op < OP_ADD ?
- QUERY_BOOLEAN_OPERATOR : QUERY_ARITHMETIC_OPERATOR);
-}
-
-namespace {
-
-// Search |events| for |query| and add matches to |output|.
-size_t FindMatchingEvents(const std::vector<TraceEvent>& events,
- const Query& query,
- TraceAnalyzer::TraceEventVector* output) {
- for (size_t i = 0; i < events.size(); ++i) {
- if (query.Evaluate(events[i]))
- output->push_back(&events[i]);
- }
- return output->size();
-}
-
-bool ParseEventsFromJson(const std::string& json,
- std::vector<TraceEvent>* output) {
- scoped_ptr<base::Value> root;
- root.reset(base::JSONReader::Read(json, false));
-
- ListValue* root_list = NULL;
- if (!root.get() || !root->GetAsList(&root_list))
- return false;
-
- for (size_t i = 0; i < root_list->GetSize(); ++i) {
- Value* item = NULL;
- if (root_list->Get(i, &item)) {
- TraceEvent event;
- if (event.SetFromJSON(item))
- output->push_back(event);
- else
- return false;
- }
- }
-
- return true;
-}
-
-} // namespace
-
-// TraceAnalyzer
-
-TraceAnalyzer::TraceAnalyzer() : allow_assocation_changes_(true) {
-}
-
-TraceAnalyzer::~TraceAnalyzer() {
-}
-
-// static
-TraceAnalyzer* TraceAnalyzer::Create(const std::string& json_events) {
- scoped_ptr<TraceAnalyzer> analyzer(new TraceAnalyzer());
- if (analyzer->SetEvents(json_events))
- return analyzer.release();
- return NULL;
-}
-
-bool TraceAnalyzer::SetEvents(const std::string& json_events) {
- raw_events_.clear();
- if (!ParseEventsFromJson(json_events, &raw_events_))
- return false;
- std::stable_sort(raw_events_.begin(), raw_events_.end());
- ParseMetadata();
- return true;
-}
-
-void TraceAnalyzer::AssociateBeginEndEvents() {
- using namespace trace_analyzer;
-
- Query begin(Query(EVENT_PHASE) ==
- Query::Phase(base::debug::TRACE_EVENT_PHASE_BEGIN));
- Query end(Query(EVENT_PHASE) ==
- Query::Phase(base::debug::TRACE_EVENT_PHASE_END));
- Query match(Query(EVENT_NAME) == Query(OTHER_NAME) &&
- Query(EVENT_CATEGORY) == Query(OTHER_CATEGORY) &&
- Query(EVENT_TID) == Query(OTHER_TID) &&
- Query(EVENT_PID) == Query(OTHER_PID));
-
- AssociateEvents(begin, end, match);
-}
-
-void TraceAnalyzer::AssociateEvents(const Query& first,
- const Query& second,
- const Query& match) {
- DCHECK(allow_assocation_changes_) << "AssociateEvents not allowed after "
- "FindEvents";
-
- // Search for matching begin/end event pairs. When a matching end is found,
- // it is associated with the begin event.
- std::vector<TraceEvent*> begin_stack;
- for (size_t event_index = 0; event_index < raw_events_.size();
- ++event_index) {
-
- TraceEvent& this_event = raw_events_[event_index];
-
- if (first.Evaluate(this_event)) {
- begin_stack.push_back(&this_event);
- } else if (second.Evaluate(this_event)) {
- // Search stack for matching begin, starting from end.
- for (int stack_index = static_cast<int>(begin_stack.size()) - 1;
- stack_index >= 0; --stack_index) {
- TraceEvent& begin_event = *begin_stack[stack_index];
-
- // Temporarily set other to test against the match query.
- const TraceEvent* other_backup = begin_event.other_event;
- begin_event.other_event = &this_event;
- if (match.Evaluate(begin_event)) {
- // Found a matching begin/end pair.
- // Set event association:
- this_event.other_event = &begin_event;
- // Erase the matching begin event index from the stack.
- begin_stack.erase(begin_stack.begin() + stack_index);
- break;
- }
-
- // Not a match, restore original other and continue.
- begin_event.other_event = other_backup;
- }
- }
- }
-}
-
-size_t TraceAnalyzer::FindEvents(const Query& query, TraceEventVector* output) {
- allow_assocation_changes_ = false;
- output->clear();
- return FindMatchingEvents(raw_events_, query, output);
-}
-
-const TraceEvent* TraceAnalyzer::FindOneEvent(const Query& query) {
- TraceEventVector output;
- if (FindEvents(query, &output) > 0)
- return output.front();
- return NULL;
-}
-
-const std::string& TraceAnalyzer::GetThreadName(
- const TraceEvent::ProcessThreadID& thread) {
- // If thread is not found, just add and return empty string.
- return thread_names_[thread];
-}
-
-void TraceAnalyzer::ParseMetadata() {
- for (size_t i = 0; i < raw_events_.size(); ++i) {
- TraceEvent& this_event = raw_events_[i];
- // Check for thread name metadata.
- if (this_event.phase != base::debug::TRACE_EVENT_PHASE_METADATA ||
- this_event.name != "thread_name")
- continue;
- std::map<std::string, std::string>::const_iterator string_it =
- this_event.arg_strings.find("name");
- if (string_it != this_event.arg_strings.end())
- thread_names_[this_event.thread] = string_it->second;
- }
-}
-
-} // namespace trace_analyzer
-