src/profile-generator-inl.h

// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
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//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef V8_PROFILE_GENERATOR_INL_H_
#define V8_PROFILE_GENERATOR_INL_H_

#ifdef ENABLE_LOGGING_AND_PROFILING

#include "profile-generator.h"

namespace v8 {
namespace internal {

const char* StringsStorage::GetFunctionName(String* name) {
  return GetFunctionName(GetName(name));
}


const char* StringsStorage::GetFunctionName(const char* name) {
  return strlen(name) > 0 ? name : ProfileGenerator::kAnonymousFunctionName;
}


CodeEntry::CodeEntry(int security_token_id)
    : tag_(Logger::FUNCTION_TAG),
      name_prefix_(kEmptyNamePrefix),
      name_(""),
      resource_name_(""),
      line_number_(0),
      security_token_id_(security_token_id) {
}


CodeEntry::CodeEntry(Logger::LogEventsAndTags tag,
                     const char* name_prefix,
                     const char* name,
                     const char* resource_name,
                     int line_number,
                     int security_token_id)
    : tag_(tag),
      name_prefix_(name_prefix),
      name_(name),
      resource_name_(resource_name),
      line_number_(line_number),
      security_token_id_(security_token_id) {
}


bool CodeEntry::is_js_function_tag(Logger::LogEventsAndTags tag) {
  return tag == Logger::FUNCTION_TAG
      || tag == Logger::LAZY_COMPILE_TAG
      || tag == Logger::SCRIPT_TAG
      || tag == Logger::NATIVE_FUNCTION_TAG
      || tag == Logger::NATIVE_LAZY_COMPILE_TAG
      || tag == Logger::NATIVE_SCRIPT_TAG;
}


ProfileNode::ProfileNode(ProfileTree* tree, CodeEntry* entry)
    : tree_(tree),
      entry_(entry),
      total_ticks_(0),
      self_ticks_(0),
      children_(CodeEntriesMatch) {
}


void CodeMap::AddCode(Address addr, CodeEntry* entry, unsigned size) {
  CodeTree::Locator locator;
  tree_.Insert(addr, &locator);
  locator.set_value(CodeEntryInfo(entry, size));
}


void CodeMap::MoveCode(Address from, Address to) {
  tree_.Move(from, to);
}

void CodeMap::DeleteCode(Address addr) {
  tree_.Remove(addr);
}


CodeEntry* ProfileGenerator::EntryForVMState(StateTag tag) {
  switch (tag) {
    case GC:
      return gc_entry_;
    case JS:
    case COMPILER:
    // DOM events handlers are reported as OTHER / EXTERNAL entries.
    // To avoid confusing people, let's put all these entries into
    // one bucket.
    case OTHER:
    case EXTERNAL:
      return program_entry_;
    default: return NULL;
  }
}


uint64_t HeapEntry::id() {
  union {
    Id stored_id;
    uint64_t returned_id;
  } id_adaptor = {id_};
  return id_adaptor.returned_id;
}


template<class Visitor>
void HeapEntriesMap::UpdateEntries(Visitor* visitor) {
  for (HashMap::Entry* p = entries_.Start();
       p != NULL;
       p = entries_.Next(p)) {
    EntryInfo* entry_info = reinterpret_cast<EntryInfo*>(p->value);
    entry_info->entry = visitor->GetEntry(
        reinterpret_cast<HeapObject*>(p->key),
        entry_info->children_count,
        entry_info->retainers_count);
    entry_info->children_count = 0;
    entry_info->retainers_count = 0;
  }
}


bool HeapSnapshotGenerator::ReportProgress(bool force) {
  const int kProgressReportGranularity = 10000;
  if (control_ != NULL
      && (force || progress_counter_ % kProgressReportGranularity == 0)) {
      return
          control_->ReportProgressValue(progress_counter_, progress_total_) ==
          v8::ActivityControl::kContinue;
  }
  return true;
}

} }  // namespace v8::internal

#endif  // ENABLE_LOGGING_AND_PROFILING

#endif  // V8_PROFILE_GENERATOR_INL_H_