chrome/browser/task_management/providers/task.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/task_management/providers/task.h"
   6
   7 #include "chrome/browser/task_management/task_manager_observer.h"
   8
   9 namespace task_management {
  10
  11 namespace {
  12
  13 // The last ID given to the previously created task.
  14 int64 g_last_id = 0;
  15
  16 }  // namespace
  17
  18
  19 Task::Task(const base::string16& title,
  20            const gfx::ImageSkia* icon,
  21            base::ProcessHandle handle)
  22     : task_id_(g_last_id++),
  23       network_usage_(-1),
  24       current_byte_count_(-1),
  25       title_(title),
  26       icon_(icon ? *icon : gfx::ImageSkia()),
  27       process_handle_(handle),
  28       process_id_(base::GetProcId(handle)) {
  29 }
  30
  31 Task::~Task() {
  32 }
  33
  34 void Task::Activate() {
  35 }
  36
  37 void Task::Refresh(const base::TimeDelta& update_interval,
  38                    int64 refresh_flags) {
  39   if ((refresh_flags & REFRESH_TYPE_NETWORK_USAGE) == 0)
  40     return;
  41
  42   if (current_byte_count_ == -1)
  43     return;
  44
  45   network_usage_ =
  46       (current_byte_count_ * base::TimeDelta::FromSeconds(1)) / update_interval;
  47
  48   // Reset the current byte count for this task.
  49   current_byte_count_ = 0;
  50 }
  51
  52 void Task::OnNetworkBytesRead(int64 bytes_read) {
  53   if (current_byte_count_ == -1)
  54     current_byte_count_ = 0;
  55
  56   current_byte_count_ += bytes_read;
  57 }
  58
  59 base::string16 Task::GetProfileName() const {
  60   return base::string16();
  61 }
  62
  63 bool Task::ReportsSqliteMemory() const {
  64   return GetSqliteMemoryUsed() != -1;
  65 }
  66
  67 int64 Task::GetSqliteMemoryUsed() const {
  68   return -1;
  69 }
  70
  71 bool Task::ReportsV8Memory() const {
  72   return GetV8MemoryAllocated() != -1;
  73 }
  74
  75 int64 Task::GetV8MemoryAllocated() const {
  76   return -1;
  77 }
  78
  79 int64 Task::GetV8MemoryUsed() const {
  80   return -1;
  81 }
  82
  83 bool Task::ReportsWebCacheStats() const {
  84   return false;
  85 }
  86
  87 blink::WebCache::ResourceTypeStats Task::GetWebCacheStats() const {
  88   return blink::WebCache::ResourceTypeStats();
  89 }
  90
  91 bool Task::ReportsNetworkUsage() const {
  92   return network_usage_ != -1;
  93 }
  94
  95 }  // namespace task_management