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task_manager_impl.cc
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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/task_manager/sampling/task_manager_impl.h"
#include <algorithm>
#include <memory>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include "base/command_line.h"
#include "base/containers/adapters.h"
#include "base/functional/bind.h"
#include "base/task/thread_pool.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/task_manager/providers/browser_process_task_provider.h"
#include "chrome/browser/task_manager/providers/child_process_task_provider.h"
#include "chrome/browser/task_manager/providers/fallback_task_provider.h"
#include "chrome/browser/task_manager/providers/render_process_host_task_provider.h"
#include "chrome/browser/task_manager/providers/spare_render_process_host_task_provider.h"
#include "chrome/browser/task_manager/providers/web_contents/web_contents_task_provider.h"
#include "chrome/browser/task_manager/providers/worker_task_provider.h"
#include "chrome/browser/task_manager/sampling/shared_sampler.h"
#include "components/nacl/common/buildflags.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_host.h"
#include "content/public/browser/gpu_data_manager.h"
#include "content/public/browser/network_service_instance.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_features.h"
#include "services/network/public/cpp/features.h"
#include "services/network/public/mojom/network_service.mojom.h"
#include "services/resource_coordinator/public/cpp/memory_instrumentation/memory_instrumentation.h"
#if BUILDFLAG(IS_CHROMEOS_ASH)
#include "ash/components/arc/arc_util.h"
#include "chrome/browser/ash/arc/process/arc_process_service.h"
#include "chrome/browser/ash/crosapi/browser_util.h"
#include "chrome/browser/task_manager/providers/arc/arc_process_task_provider.h"
#include "chrome/browser/task_manager/providers/crosapi/crosapi_task_provider_ash.h"
#include "chrome/browser/task_manager/providers/vm/vm_process_task_provider.h"
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
namespace task_manager {
namespace {
base::LazyInstance<TaskManagerImpl>::Leaky lazy_task_manager_instance =
LAZY_INSTANCE_INITIALIZER;
} // namespace
TaskManagerImpl::TaskManagerImpl()
: on_background_data_ready_callback_(base::BindRepeating(
&TaskManagerImpl::OnTaskGroupBackgroundCalculationsDone,
base::Unretained(this))),
blocking_pool_runner_(base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::TaskPriority::BEST_EFFORT,
base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN})),
shared_sampler_(new SharedSampler(blocking_pool_runner_)),
is_running_(false),
waiting_for_memory_dump_(false) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
task_providers_.push_back(std::make_unique<BrowserProcessTaskProvider>());
task_providers_.push_back(std::make_unique<ChildProcessTaskProvider>());
// Put all task providers for various types of RenderProcessHosts in this
// section. All of them should be added as primary subproviders for the
// FallbackTaskProvider, so that a fallback task can be shown for a renderer
// process if no other provider is shown for it.
std::vector<std::unique_ptr<TaskProvider>> primary_subproviders;
primary_subproviders.push_back(
std::make_unique<SpareRenderProcessHostTaskProvider>());
primary_subproviders.push_back(std::make_unique<WorkerTaskProvider>());
primary_subproviders.push_back(std::make_unique<WebContentsTaskProvider>());
task_providers_.push_back(std::make_unique<FallbackTaskProvider>(
std::move(primary_subproviders),
std::make_unique<RenderProcessHostTaskProvider>()));
#if BUILDFLAG(IS_CHROMEOS_ASH)
if (arc::IsArcAvailable())
task_providers_.push_back(std::make_unique<ArcProcessTaskProvider>());
task_providers_.push_back(std::make_unique<VmProcessTaskProvider>());
arc_shared_sampler_ = std::make_unique<ArcSharedSampler>();
if (crosapi::browser_util::IsLacrosEnabled()) {
std::unique_ptr<CrosapiTaskProviderAsh> task_provider =
std::make_unique<CrosapiTaskProviderAsh>();
crosapi_task_provider_ = task_provider.get();
task_providers_.push_back(std::move(task_provider));
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
}
TaskManagerImpl::~TaskManagerImpl() {
StopUpdating();
}
// static
TaskManagerImpl* TaskManagerImpl::GetInstance() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
return lazy_task_manager_instance.Pointer();
}
bool TaskManagerImpl::IsCreated() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
return lazy_task_manager_instance.IsCreated();
}
void TaskManagerImpl::ActivateTask(TaskId task_id) {
GetTaskByTaskId(task_id)->Activate();
}
bool TaskManagerImpl::IsTaskKillable(TaskId task_id) {
return GetTaskByTaskId(task_id)->IsKillable();
}
void TaskManagerImpl::KillTask(TaskId task_id) {
GetTaskByTaskId(task_id)->Kill();
}
double TaskManagerImpl::GetPlatformIndependentCPUUsage(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->platform_independent_cpu_usage();
}
base::Time TaskManagerImpl::GetStartTime(TaskId task_id) const {
#if BUILDFLAG(IS_WIN)
return GetTaskGroupByTaskId(task_id)->start_time();
#else
NOTIMPLEMENTED();
return base::Time();
#endif
}
base::TimeDelta TaskManagerImpl::GetCpuTime(TaskId task_id) const {
#if BUILDFLAG(IS_WIN)
return GetTaskGroupByTaskId(task_id)->cpu_time();
#else
NOTIMPLEMENTED();
return base::TimeDelta();
#endif
}
int64_t TaskManagerImpl::GetMemoryFootprintUsage(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->footprint_bytes();
}
int64_t TaskManagerImpl::GetSwappedMemoryUsage(TaskId task_id) const {
#if BUILDFLAG(IS_CHROMEOS)
return GetTaskGroupByTaskId(task_id)->swapped_bytes();
#else
return -1;
#endif
}
int64_t TaskManagerImpl::GetGpuMemoryUsage(TaskId task_id,
bool* has_duplicates) const {
const TaskGroup* task_group = GetTaskGroupByTaskId(task_id);
if (has_duplicates)
*has_duplicates = task_group->gpu_memory_has_duplicates();
return task_group->gpu_memory();
}
int TaskManagerImpl::GetIdleWakeupsPerSecond(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->idle_wakeups_per_second();
}
int TaskManagerImpl::GetHardFaultsPerSecond(TaskId task_id) const {
#if BUILDFLAG(IS_WIN)
return GetTaskGroupByTaskId(task_id)->hard_faults_per_second();
#else
return -1;
#endif
}
int TaskManagerImpl::GetNaClDebugStubPort(TaskId task_id) const {
#if BUILDFLAG(ENABLE_NACL)
return GetTaskGroupByTaskId(task_id)->nacl_debug_stub_port();
#else
return -2;
#endif // BUILDFLAG(ENABLE_NACL)
}
void TaskManagerImpl::GetGDIHandles(TaskId task_id,
int64_t* current,
int64_t* peak) const {
#if BUILDFLAG(IS_WIN)
const TaskGroup* task_group = GetTaskGroupByTaskId(task_id);
*current = task_group->gdi_current_handles();
*peak = task_group->gdi_peak_handles();
#else
*current = -1;
*peak = -1;
#endif // BUILDFLAG(IS_WIN)
}
void TaskManagerImpl::GetUSERHandles(TaskId task_id,
int64_t* current,
int64_t* peak) const {
#if BUILDFLAG(IS_WIN)
const TaskGroup* task_group = GetTaskGroupByTaskId(task_id);
*current = task_group->user_current_handles();
*peak = task_group->user_peak_handles();
#else
*current = -1;
*peak = -1;
#endif // BUILDFLAG(IS_WIN)
}
int TaskManagerImpl::GetOpenFdCount(TaskId task_id) const {
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC)
return GetTaskGroupByTaskId(task_id)->open_fd_count();
#else
return -1;
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC)
}
bool TaskManagerImpl::IsTaskOnBackgroundedProcess(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->is_backgrounded();
}
const std::u16string& TaskManagerImpl::GetTitle(TaskId task_id) const {
return GetTaskByTaskId(task_id)->title();
}
std::u16string TaskManagerImpl::GetProfileName(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetProfileName();
}
const gfx::ImageSkia& TaskManagerImpl::GetIcon(TaskId task_id) const {
return GetTaskByTaskId(task_id)->icon();
}
const base::ProcessHandle& TaskManagerImpl::GetProcessHandle(
TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->process_handle();
}
const base::ProcessId& TaskManagerImpl::GetProcessId(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->process_id();
}
Task::Type TaskManagerImpl::GetType(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetType();
}
SessionID TaskManagerImpl::GetTabId(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetTabId();
}
int TaskManagerImpl::GetChildProcessUniqueId(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetChildProcessUniqueID();
}
void TaskManagerImpl::GetTerminationStatus(TaskId task_id,
base::TerminationStatus* out_status,
int* out_error_code) const {
GetTaskByTaskId(task_id)->GetTerminationStatus(out_status, out_error_code);
}
int64_t TaskManagerImpl::GetNetworkUsage(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetNetworkUsageRate();
}
int64_t TaskManagerImpl::GetCumulativeNetworkUsage(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetCumulativeNetworkUsage();
}
int64_t TaskManagerImpl::GetProcessTotalNetworkUsage(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->per_process_network_usage_rate();
}
int64_t TaskManagerImpl::GetCumulativeProcessTotalNetworkUsage(
TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->cumulative_per_process_network_usage();
}
int64_t TaskManagerImpl::GetSqliteMemoryUsed(TaskId task_id) const {
return GetTaskByTaskId(task_id)->GetSqliteMemoryUsed();
}
bool TaskManagerImpl::GetV8Memory(TaskId task_id,
int64_t* allocated,
int64_t* used) const {
const Task* task = GetTaskByTaskId(task_id);
const int64_t allocated_memory = task->GetV8MemoryAllocated();
const int64_t used_memory = task->GetV8MemoryUsed();
if (allocated_memory == -1 || used_memory == -1)
return false;
*allocated = allocated_memory;
*used = used_memory;
return true;
}
bool TaskManagerImpl::GetWebCacheStats(
TaskId task_id,
blink::WebCacheResourceTypeStats* stats) const {
const Task* task = GetTaskByTaskId(task_id);
if (!task->ReportsWebCacheStats())
return false;
*stats = task->GetWebCacheStats();
return true;
}
int TaskManagerImpl::GetKeepaliveCount(TaskId task_id) const {
const Task* task = GetTaskByTaskId(task_id);
if (!task)
return -1;
return task->GetKeepaliveCount();
}
const TaskIdList& TaskManagerImpl::GetTaskIdsList() const {
DCHECK(is_running_) << "Task manager is not running. You must observe the "
"task manager for it to start running";
if (sorted_task_ids_.empty()) {
// |comparator| groups and sorts by subtask-ness (to push all subtasks to be
// last), then by process type (e.g. the browser process should be first;
// renderer processes should be together), then tab id (processes used by
// the same tab should be kept together, and a tab should have a stable
// position in the list as it cycles through processes, and tab creation
// order is meaningful), and finally by task id (when all else is equal, put
// the oldest tasks first).
auto comparator = [](const Task* a, const Task* b) -> bool {
return std::make_tuple(a->HasParentTask(), a->GetType(), a->GetTabId(),
a->task_id()) <
std::make_tuple(b->HasParentTask(), b->GetType(), b->GetTabId(),
b->task_id());
};
const size_t num_groups =
task_groups_by_proc_id_.size() + arc_vm_task_groups_by_proc_id_.size();
// |task_groups_by_task_id_| contains all tasks, both VM and non-VM.
const size_t num_tasks = task_groups_by_task_id_.size();
// Populate |tasks_to_visit| with one task from each group.
std::vector<const Task*> tasks_to_visit;
tasks_to_visit.reserve(num_groups);
std::unordered_map<const Task*, std::vector<const Task*>> children;
for (const auto& groups_pair : task_groups_by_proc_id_) {
// The first task in the group (per |comparator|) is the one used for
// sorting the group relative to other groups.
const std::vector<Task*>& tasks = groups_pair.second->tasks();
Task* group_task =
*std::min_element(tasks.begin(), tasks.end(), comparator);
tasks_to_visit.push_back(group_task);
// Build the parent-to-child map, for use later.
for (const Task* task : tasks) {
if (task->HasParentTask())
children[task->GetParentTask()].push_back(task);
else
DCHECK(!group_task->HasParentTask());
}
}
for (const auto& groups_pair : arc_vm_task_groups_by_proc_id_) {
const std::vector<Task*>& tasks = groups_pair.second->tasks();
Task* group_task =
*std::min_element(tasks.begin(), tasks.end(), comparator);
tasks_to_visit.push_back(group_task);
}
// Now sort |tasks_to_visit| in reverse order (putting the browser process
// at back()). We will treat it as a stack from now on.
std::sort(tasks_to_visit.rbegin(), tasks_to_visit.rend(), comparator);
DCHECK_EQ(Task::BROWSER, tasks_to_visit.back()->GetType());
// Using |tasks_to_visit| as a stack, and |visited_groups| to track which
// groups we've already added, add groups to |sorted_task_ids_| until all
// groups have been added.
sorted_task_ids_.reserve(num_tasks);
std::unordered_set<TaskGroup*> visited_groups;
visited_groups.reserve(num_groups);
std::vector<Task*> current_group_tasks; // Outside loop for fewer mallocs.
while (visited_groups.size() < num_groups) {
DCHECK(!tasks_to_visit.empty());
TaskGroup* current_group =
GetTaskGroupByTaskId(tasks_to_visit.back()->task_id());
tasks_to_visit.pop_back();
// Mark |current_group| as visited. If this fails, we've already added
// the group, and should skip over it.
if (!visited_groups.insert(current_group).second)
continue;
// Make a copy of |current_group->tasks()|, sort it, and append the ids.
current_group_tasks = current_group->tasks();
std::sort(current_group_tasks.begin(), current_group_tasks.end(),
comparator);
for (Task* task : current_group_tasks)
sorted_task_ids_.push_back(task->task_id());
// Find the children of the tasks we just added, and push them into
// |tasks_to_visit|, so that we visit them soon. Work in reverse order,
// so that we visit them in forward order.
for (Task* parent : base::Reversed(current_group_tasks)) {
auto children_of_parent = children.find(parent);
if (children_of_parent != children.end()) {
// Sort children[parent], and then append in reversed order.
std::sort(children_of_parent->second.begin(),
children_of_parent->second.end(), comparator);
tasks_to_visit.insert(tasks_to_visit.end(),
children_of_parent->second.rbegin(),
children_of_parent->second.rend());
}
}
}
#if BUILDFLAG(IS_CHROMEOS_ASH)
if (crosapi_task_provider_) {
// Lacros tasks have been pre-sorted in lacros. Place them at the
// end of |sorted_task_ids| in the same order they are returned from
// crosapi.
for (const auto& task_id : crosapi_task_provider_->GetSortedTaskIds()) {
Task* task = GetTaskByTaskId(task_id);
if (task)
sorted_task_ids_.push_back(task_id);
}
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
DCHECK_EQ(num_tasks, sorted_task_ids_.size());
}
return sorted_task_ids_;
}
TaskIdList TaskManagerImpl::GetIdsOfTasksSharingSameProcess(
TaskId task_id) const {
DCHECK(is_running_) << "Task manager is not running. You must observe the "
"task manager for it to start running";
TaskIdList result;
TaskGroup* group = GetTaskGroupByTaskId(task_id);
if (group) {
result.reserve(group->tasks().size());
for (Task* task : group->tasks())
result.push_back(task->task_id());
}
return result;
}
size_t TaskManagerImpl::GetNumberOfTasksOnSameProcess(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->num_tasks();
}
bool TaskManagerImpl::IsRunningInVM(TaskId task_id) const {
return GetTaskByTaskId(task_id)->IsRunningInVM();
}
TaskId TaskManagerImpl::GetTaskIdForWebContents(
content::WebContents* web_contents) const {
if (!web_contents)
return -1;
content::RenderFrameHost* rfh = web_contents->GetPrimaryMainFrame();
Task* task = GetTaskByRoute(rfh->GetGlobalId());
if (!task)
return -1;
return task->task_id();
}
void TaskManagerImpl::TaskAdded(Task* task) {
DCHECK(task);
const base::ProcessId proc_id = task->process_id();
const TaskId task_id = task->task_id();
const bool is_running_in_vm = task->IsRunningInVM();
const bool is_running_in_lacros = task->GetType() == Task::LACROS;
TaskManagerImpl::PidToTaskGroupMap& task_group_map =
is_running_in_vm ? arc_vm_task_groups_by_proc_id_
: is_running_in_lacros ? crosapi_task_groups_by_proc_id_
: task_groups_by_proc_id_;
std::unique_ptr<TaskGroup>& task_group = task_group_map[proc_id];
if (!task_group) {
task_group = std::make_unique<TaskGroup>(
task->process_handle(), proc_id, is_running_in_vm,
on_background_data_ready_callback_, shared_sampler_,
#if BUILDFLAG(IS_CHROMEOS_ASH)
is_running_in_lacros ? crosapi_task_provider_ : nullptr,
#endif
blocking_pool_runner_);
#if BUILDFLAG(IS_CHROMEOS_ASH)
if (task->GetType() == Task::ARC)
task_group->SetArcSampler(arc_shared_sampler_.get());
#endif
}
task_group->AddTask(task);
task_groups_by_task_id_[task_id] = task_group.get();
// Invalidate the cached sorted IDs by clearing the list.
sorted_task_ids_.clear();
NotifyObserversOnTaskAdded(task_id);
}
void TaskManagerImpl::TaskRemoved(Task* task) {
DCHECK(task);
const base::ProcessId proc_id = task->process_id();
const TaskId task_id = task->task_id();
const bool is_running_in_vm = task->IsRunningInVM();
const bool is_running_in_lacros = task->GetType() == Task::LACROS;
TaskManagerImpl::PidToTaskGroupMap& task_group_map =
is_running_in_vm ? arc_vm_task_groups_by_proc_id_
: is_running_in_lacros ? crosapi_task_groups_by_proc_id_
: task_groups_by_proc_id_;
DCHECK(task_group_map.count(proc_id));
NotifyObserversOnTaskToBeRemoved(task_id);
TaskGroup* task_group = GetTaskGroupByTaskId(task_id);
task_group->RemoveTask(task);
task_groups_by_task_id_.erase(task_id);
if (task_group->empty())
task_group_map.erase(proc_id); // Deletes |task_group|.
// Invalidate the cached sorted IDs by clearing the list.
sorted_task_ids_.clear();
}
void TaskManagerImpl::TaskUnresponsive(Task* task) {
DCHECK(task);
NotifyObserversOnTaskUnresponsive(task->task_id());
}
#if BUILDFLAG(IS_CHROMEOS_ASH)
void TaskManagerImpl::TaskIdsListToBeInvalidated() {
sorted_task_ids_.clear();
NotifyObserversOnRefresh(GetTaskIdsList());
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
void TaskManagerImpl::UpdateAccumulatedStatsNetworkForRoute(
content::GlobalRenderFrameHostId render_frame_host_id,
int64_t recv_bytes,
int64_t sent_bytes) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (!is_running_)
return;
Task* task = GetTaskByRoute(render_frame_host_id);
if (!task) {
// Orphaned/unaccounted activity is credited to the Browser process.
task = GetTaskByRoute(content::GlobalRenderFrameHostId());
}
if (!task)
return;
task->OnNetworkBytesRead(recv_bytes);
task->OnNetworkBytesSent(sent_bytes);
}
void TaskManagerImpl::OnVideoMemoryUsageStatsUpdate(
const gpu::VideoMemoryUsageStats& gpu_memory_stats) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
gpu_memory_stats_ = gpu_memory_stats;
}
void TaskManagerImpl::OnReceivedMemoryDump(
bool success,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump> dump) {
waiting_for_memory_dump_ = false;
// We can ignore the value of success as it is a coarse grained indicator
// of whether the global dump was successful; usually because of a missing
// process or OS dumps. There may still be useful information for other
// processes in the global dump when success is false.
if (!dump)
return;
for (const auto& pmd : dump->process_dumps()) {
auto it = task_groups_by_proc_id_.find(pmd.pid());
if (it == task_groups_by_proc_id_.end())
continue;
it->second->set_footprint_bytes(
static_cast<uint64_t>(pmd.os_dump().private_footprint_kb) * 1024);
}
}
void TaskManagerImpl::Refresh() {
if (IsResourceRefreshEnabled(REFRESH_TYPE_GPU_MEMORY)) {
content::GpuDataManager::GetInstance()->RequestVideoMemoryUsageStatsUpdate(
base::BindOnce(&TaskManagerImpl::OnVideoMemoryUsageStatsUpdate,
weak_ptr_factory_.GetWeakPtr()));
}
if (IsResourceRefreshEnabled(REFRESH_TYPE_MEMORY_FOOTPRINT) &&
!waiting_for_memory_dump_) {
// The callback keeps this object alive until the callback is invoked.
waiting_for_memory_dump_ = true;
auto callback = base::BindOnce(&TaskManagerImpl::OnReceivedMemoryDump,
weak_ptr_factory_.GetWeakPtr());
memory_instrumentation::MemoryInstrumentation::GetInstance()
->RequestPrivateMemoryFootprint(base::kNullProcessId,
std::move(callback));
}
for (auto& groups_itr : task_groups_by_proc_id_) {
groups_itr.second->Refresh(gpu_memory_stats_, GetCurrentRefreshTime(),
enabled_resources_flags());
}
for (auto& groups_itr : arc_vm_task_groups_by_proc_id_) {
groups_itr.second->Refresh(gpu_memory_stats_, GetCurrentRefreshTime(),
enabled_resources_flags());
}
#if BUILDFLAG(IS_CHROMEOS_ASH)
for (auto& groups_itr : crosapi_task_groups_by_proc_id_) {
groups_itr.second->Refresh(gpu_memory_stats_, GetCurrentRefreshTime(),
enabled_resources_flags());
}
if (TaskManagerObserver::IsResourceRefreshEnabled(
REFRESH_TYPE_MEMORY_FOOTPRINT, enabled_resources_flags())) {
arc_shared_sampler_->Refresh();
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
NotifyObserversOnRefresh(GetTaskIdsList());
}
void TaskManagerImpl::StartUpdating() {
if (is_running_)
return;
is_running_ = true;
content::GetNetworkService()->EnableDataUseUpdates(true);
for (const auto& provider : task_providers_)
provider->SetObserver(this);
// Kick off fetch of asynchronous data, e.g., memory footprint, so that it
// will be displayed sooner after opening the task manager.
Refresh();
}
void TaskManagerImpl::StopUpdating() {
if (!is_running_)
return;
is_running_ = false;
content::GetNetworkService()->EnableDataUseUpdates(false);
for (const auto& provider : task_providers_)
provider->ClearObserver();
task_groups_by_proc_id_.clear();
arc_vm_task_groups_by_proc_id_.clear();
crosapi_task_groups_by_proc_id_.clear();
task_groups_by_task_id_.clear();
sorted_task_ids_.clear();
}
Task* TaskManagerImpl::GetTaskByRoute(
content::GlobalRenderFrameHostId render_frame_host_id) const {
for (const auto& task_provider : task_providers_) {
Task* task = task_provider->GetTaskOfUrlRequest(
render_frame_host_id.child_id, render_frame_host_id.frame_routing_id);
if (task)
return task;
}
return nullptr;
}
TaskGroup* TaskManagerImpl::GetTaskGroupByTaskId(TaskId task_id) const {
auto it = task_groups_by_task_id_.find(task_id);
DCHECK(it != task_groups_by_task_id_.end());
return it->second;
}
Task* TaskManagerImpl::GetTaskByTaskId(TaskId task_id) const {
return GetTaskGroupByTaskId(task_id)->GetTaskById(task_id);
}
void TaskManagerImpl::OnTaskGroupBackgroundCalculationsDone() {
for (const auto& groups_itr : task_groups_by_proc_id_) {
if (!groups_itr.second->AreBackgroundCalculationsDone())
return;
}
NotifyObserversOnRefreshWithBackgroundCalculations(GetTaskIdsList());
for (const auto& groups_itr : task_groups_by_proc_id_)
groups_itr.second->ClearCurrentBackgroundCalculationsFlags();
}
} // namespace task_manager