Delete Tracked, and move Location to its own file.

base/tracked.cc

-// 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 "build/build_config.h"
-
-#if defined(COMPILER_MSVC)
-// MSDN says to #include <intrin.h>, but that breaks the VS2005 build.
-extern "C" {
-void* _ReturnAddress();
-}
-#endif
-
-#include "base/tracked.h"
-
-#include "base/stringprintf.h"
-#include "base/tracked_objects.h"
-
-using base::TimeTicks;
-
-namespace tracked_objects {
-
-//------------------------------------------------------------------------------
-
-Location::Location(const char* function_name,
-                   const char* file_name,
-                   int line_number,
-                   const void* program_counter)
-    : function_name_(function_name),
-      file_name_(file_name),
-      line_number_(line_number),
-      program_counter_(program_counter) {
-}
-
-Location::Location()
-    : function_name_("Unknown"),
-      file_name_("Unknown"),
-      line_number_(-1),
-      program_counter_(NULL) {
-}
-
-void Location::Write(bool display_filename, bool display_function_name,
-                     std::string* output) const {
-  base::StringAppendF(output, "%s[%d] ",
-      display_filename ? file_name_ : "line",
-      line_number_);
-
-  if (display_function_name) {
-    WriteFunctionName(output);
-    output->push_back(' ');
-  }
-}
-
-void Location::WriteFunctionName(std::string* output) const {
-  // Translate "<" to "&lt;" for HTML safety.
-  // TODO(jar): Support ASCII or html for logging in ASCII.
-  for (const char *p = function_name_; *p; p++) {
-    switch (*p) {
-      case '<':
-        output->append("&lt;");
-        break;
-
-      case '>':
-        output->append("&gt;");
-        break;
-
-      default:
-        output->push_back(*p);
-        break;
-    }
-  }
-}
-
-#if defined(COMPILER_MSVC)
-__declspec(noinline)
-#endif
-BASE_EXPORT const void* GetProgramCounter() {
-#if defined(COMPILER_MSVC)
-  return _ReturnAddress();
-#elif defined(COMPILER_GCC)
-  return __builtin_extract_return_addr(__builtin_return_address(0));
-#endif  // COMPILER_GCC
-
-  return NULL;
-}
-
-//------------------------------------------------------------------------------
-
-#if !defined(TRACK_ALL_TASK_OBJECTS)
-
-Tracked::Tracked() : birth_program_counter_(NULL) {}
-Tracked::~Tracked() {}
-
-void Tracked::SetBirthPlace(const Location& from_here) {
-  birth_program_counter_ = from_here.program_counter();
-}
-
-const Location Tracked::GetBirthPlace() const {
-  static Location kNone("NoFunctionName", "NeedToSetBirthPlace", -1, NULL);
-  return kNone;
-}
-bool Tracked::MissingBirthPlace() const { return false; }
-void Tracked::ResetBirthTime() {}
-
-#else
-
-Tracked::Tracked()
-    : tracked_births_(NULL),
-      tracked_birth_time_(TimeTicks::Now()) {
-}
-
-Tracked::~Tracked() {
-  if (!ThreadData::IsActive() || !tracked_births_)
-    return;
-  ThreadData::current()->TallyADeath(*tracked_births_,
-                                     TimeTicks::Now() - tracked_birth_time_);
-}
-
-void Tracked::SetBirthPlace(const Location& from_here) {
-  if (!ThreadData::IsActive())
-    return;
-  if (tracked_births_)
-    tracked_births_->ForgetBirth();
-  ThreadData* current_thread_data = ThreadData::current();
-  if (!current_thread_data)
-    return;  // Shutdown started, and this thread wasn't registered.
-  tracked_births_ = current_thread_data->TallyABirth(from_here);
-
-  birth_program_counter_ = from_here.program_counter();
-}
-
-const Location Tracked::GetBirthPlace() const {
-  static Location kNone("UnknownFunctionName", "UnknownFile", -1, NULL);
-  return tracked_births_ ? tracked_births_->location() : kNone;
-}
-
-void Tracked::ResetBirthTime() {
-  tracked_birth_time_ = TimeTicks::Now();
-}
-
-bool Tracked::MissingBirthPlace() const {
-  return  !tracked_births_ || tracked_births_->location().line_number() == -1;
-}
-
-#endif  // !defined(TRACK_ALL_TASK_OBJECTS)
-
-}  // namespace tracked_objects