Remove the old task manager view

chrome/browser/caps/generate_state_json.cc

-// Copyright 2015 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 "chrome/browser/caps/generate_state_json.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-#include <utility>
-
-#include "base/bind.h"
-#include "base/cpu.h"
-#include "base/files/file.h"
-#include "base/json/json_writer.h"
-#include "base/location.h"
-#include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
-#include "base/strings/stringprintf.h"
-#include "base/sys_info.h"
-#include "base/threading/thread_restrictions.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "base/time/time.h"
-#include "base/values.h"
-#include "build/build_config.h"
-#include "chrome/browser/task_manager/task_manager.h"
-
-namespace {
-
-std::string Key(base::ProcessId pid, const char* category) {
-  return category ?
-      base::StringPrintf("process.%d.%s", pid, category) :
-      base::StringPrintf("process.%d", pid);
-}
-
-using MemoryFn1 = bool (TaskManagerModel::*)(
-    int index, size_t* result1) const;
-using MemoryFn2 = bool (TaskManagerModel::*)(
-    int index, size_t* result1, bool*) const;
-
-int InMBFromB(size_t result_in_bytes) {
-  return static_cast<int>(result_in_bytes / (1024 * 1024));
-}
-
-int InMBFromB(const TaskManagerModel* model, MemoryFn1 mfn, int index) {
-  size_t result_in_bytes = 0;
-  bool res = (model->*mfn)(index, &result_in_bytes);
-  return res ? InMBFromB(result_in_bytes) : 0;
-}
-
-int InMBFromB(const TaskManagerModel* model, MemoryFn2 mfn, int index) {
-  size_t result_in_bytes = 0;
-  bool ignored;
-  bool res = (model->*mfn)(index, &result_in_bytes, &ignored);
-  return res ? InMBFromB(result_in_bytes) : 0;
-}
-
-class TaskManagerDataDumper :
-    public base::RefCountedThreadSafe<TaskManagerDataDumper> {
- public:
-  TaskManagerDataDumper(scoped_refptr<TaskManagerModel> model, base::File file)
-      : model_(model), file_(std::move(file)) {
-    model_->RegisterOnDataReadyCallback(
-        base::Bind(&TaskManagerDataDumper::OnDataReady, this));
-    model->StartListening();
-    // Note that GenerateStateJSON 'new's this object which is reference
-    // counted.
-    AddRef();
-  }
-
- private:
-  friend class base::RefCountedThreadSafe<TaskManagerDataDumper>;
-  ~TaskManagerDataDumper() {
-  }
-
-  void OnDataReady() {
-    // Some data (for example V8 memory) has not yet arrived, so we wait.
-    // TODO(cpu): Figure out how to make this reliable.
-    static base::TimeDelta delay = base::TimeDelta::FromMilliseconds(250);
-    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
-        FROM_HERE, base::Bind(&TaskManagerDataDumper::OnDataReadyDelayed, this),
-        delay);
-  }
-
-  void OnDataReadyDelayed() {
-    model_->StopListening();
-    // Task manager finally computed (most) values. Lets generate the JSON
-    // data and send it over the pipe.
-    base::DictionaryValue dict;
-    GatherComputerValues(&dict);
-    GatherChromeValues(&dict);
-
-    std::string json;
-    auto options = base::JSONWriter::OPTIONS_PRETTY_PRINT;
-    if (!base::JSONWriter::WriteWithOptions(dict, options, &json))
-      return;
-
-    file_.WriteAtCurrentPos(json.c_str(), json.size());
-    file_.Close();
-    // this Release() causes our destruction.
-    Release();
-  }
-
- private:
-  // TODO(cpu): split the key names below into a separate header that both
-  // caps and chrome can use.
-
-  void GatherComputerValues(base::DictionaryValue* dict) {
-    base::CPU cpu;
-    dict->SetInteger("system.cpu.type", cpu.type());
-    dict->SetInteger("system.cpu.family", cpu.family());
-    dict->SetInteger("system.cpu.model", cpu.model());
-    dict->SetInteger("system.cpu.stepping", cpu.stepping());
-    dict->SetString("system.cpu.brand", cpu.cpu_brand());
-    dict->SetInteger("system.cpu.logicalprocessors",
-                     base::SysInfo::NumberOfProcessors());
-    dict->SetInteger("system.cpu.logicalprocessors",
-                     base::SysInfo::NumberOfProcessors());
-    int64_t memory = base::SysInfo::AmountOfPhysicalMemory();
-    dict->SetInteger("system.memory.physical", InMBFromB(memory));
-    memory = base::SysInfo::AmountOfAvailablePhysicalMemory();
-    dict->SetInteger("system.memory.available", InMBFromB(memory));
-    dict->SetInteger("system.uptime", base::SysInfo::Uptime().InSeconds());
-    dict->SetString("os.name", base::SysInfo::OperatingSystemName());
-#if !defined(OS_LINUX)
-    int32_t major, minor, bugfix;
-    base::SysInfo::OperatingSystemVersionNumbers(&major, &minor, &bugfix);
-    dict->SetInteger("os.version.major", major);
-    dict->SetInteger("os.version.minor", minor);
-    dict->SetInteger("os.version.bugfix", bugfix);
-    dict->SetString("os.arch", base::SysInfo::OperatingSystemArchitecture());
-#endif
-  }
-
-  void GatherChromeValues(base::DictionaryValue* dict) {
-    for (int index = 0; index != model_->ResourceCount(); ++index) {
-      auto pid = model_->GetProcessId(index);
-      auto tabs_key =  Key(pid, "tabs");
-      base::ListValue* tabs;
-      if (!dict->GetList(tabs_key, &tabs)) {
-        tabs = new base::ListValue;
-        dict->Set(tabs_key, tabs);
-        tabs->AppendString(model_->GetResourceTitle(index));
-
-        dict->SetInteger(Key(pid, "memory.physical"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetPhysicalMemory, index));
-        dict->SetInteger(Key(pid, "memory.private"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetPrivateMemory, index));
-        dict->SetInteger(Key(pid, "memory.shared"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetSharedMemory, index));
-        dict->SetInteger(Key(pid, "memory.video"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetVideoMemory, index));
-        dict->SetInteger(Key(pid, "memory.V8.total"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetV8Memory, index));
-        dict->SetInteger(Key(pid, "memory.V8.used"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetV8MemoryUsed, index));
-        dict->SetInteger(Key(pid, "memory.sqlite"),
-            InMBFromB(model_.get(),
-                      &TaskManagerModel::GetSqliteMemoryUsedBytes, index));
-        dict->SetString(Key(pid, "uptime"),
-            ProcessUptime(model_->GetProcess(index)));
-      } else {
-        // TODO(cpu): Probably best to write the MD5 hash of the title.
-        tabs->AppendString(model_->GetResourceTitle(index));
-      }
-    }
-  }
-
-  std::string ProcessUptime(base::ProcessHandle process) {
-#if defined(OS_WIN)
-    FILETIME creation_time;
-    FILETIME exit_time;
-    FILETIME kernel_time;
-    FILETIME user_time;
-
-    if (!GetProcessTimes(process, &creation_time, &exit_time,
-                         &kernel_time, &user_time))
-      return std::string("~");
-
-    auto ct_delta = base::Time::Now() - base::Time::FromFileTime(creation_time);
-    return base::StringPrintf("%lld", ct_delta.InSeconds());
-#else
-    return std::string();
-#endif
-  }
-
-  scoped_refptr<TaskManagerModel> model_;
-  base::File file_;
-};
-
-}  // namespace
-
-namespace caps {
-
-void GenerateStateJSON(
-    scoped_refptr<TaskManagerModel> model, base::File file) {
-  new TaskManagerDataDumper(model, std::move(file));
-}
-
-}