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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/providers/task.h"
#include <stddef.h>
#include "base/numerics/safe_conversions.h"
#include "base/process/process.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_attributes_entry.h"
#include "chrome/browser/profiles/profile_attributes_storage.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/task_manager/providers/task_provider_observer.h"
#include "chrome/browser/task_manager/task_manager_observer.h"
#include "content/public/common/result_codes.h"
#include "ui/base/resource/resource_bundle.h"
namespace task_manager {
namespace {
// The last ID given to the previously created task.
int64_t g_last_id = 0;
base::ProcessId DetermineProcessId(base::ProcessHandle handle,
base::ProcessId process_id) {
if (process_id != base::kNullProcessId)
return process_id;
return base::GetProcId(handle);
}
} // namespace
Task::Task(const std::u16string& title,
const gfx::ImageSkia* icon,
base::ProcessHandle handle,
base::ProcessId process_id)
: task_id_(g_last_id++),
last_refresh_cumulative_bytes_sent_(0),
last_refresh_cumulative_bytes_read_(0),
cumulative_bytes_sent_(0),
cumulative_bytes_read_(0),
network_sent_rate_(0),
network_read_rate_(0),
title_(title),
icon_(icon ? *icon : gfx::ImageSkia()),
process_handle_(handle),
process_id_(DetermineProcessId(handle, process_id)) {}
Task::~Task() = default;
// static
std::u16string Task::GetProfileNameFromProfile(Profile* profile) {
DCHECK(profile);
ProfileAttributesEntry* entry =
g_browser_process->profile_manager()
->GetProfileAttributesStorage()
.GetProfileAttributesWithPath(
profile->GetOriginalProfile()->GetPath());
return entry ? entry->GetName() : std::u16string();
}
void Task::Activate() {}
bool Task::IsKillable() {
// Protects from trying to kill a task that doesn't have an accurate process
// Id yet. This can result in calling "kill 0" which kills all processes in
// the process group.
if (process_id() == base::kNullProcessId)
return false;
return true;
}
bool Task::Kill() {
if (!IsKillable())
return false;
DCHECK_NE(process_id(), base::GetCurrentProcId());
base::Process process = base::Process::Open(process_id());
return process.Terminate(content::RESULT_CODE_KILLED, false);
}
void Task::Refresh(const base::TimeDelta& update_interval,
int64_t refresh_flags) {
if ((refresh_flags & REFRESH_TYPE_NETWORK_USAGE) == 0 ||
update_interval == base::TimeDelta())
return;
int64_t current_cycle_read_byte_count =
cumulative_bytes_read_ - last_refresh_cumulative_bytes_read_;
network_read_rate_ = base::ClampRound<int64_t>(current_cycle_read_byte_count /
update_interval.InSecondsF());
int64_t current_cycle_sent_byte_count =
cumulative_bytes_sent_ - last_refresh_cumulative_bytes_sent_;
network_sent_rate_ = base::ClampRound<int64_t>(current_cycle_sent_byte_count /
update_interval.InSecondsF());
last_refresh_cumulative_bytes_read_ = cumulative_bytes_read_;
last_refresh_cumulative_bytes_sent_ = cumulative_bytes_sent_;
}
void Task::UpdateProcessInfo(base::ProcessHandle handle,
base::ProcessId process_id,
TaskProviderObserver* observer) {
process_id = DetermineProcessId(handle, process_id);
// Don't remove the task if there is no change to the process ID.
if (process_id == process_id_)
return;
// TaskManagerImpl and TaskGroup implementations assume that a process ID is
// consistent for the lifetime of a Task. So to change the process ID,
// temporarily unregister this Task.
observer->TaskRemoved(this);
process_handle_ = handle;
process_id_ = process_id;
observer->TaskAdded(this);
}
void Task::OnNetworkBytesRead(int64_t bytes_read) {
cumulative_bytes_read_ += bytes_read;
}
void Task::OnNetworkBytesSent(int64_t bytes_sent) {
cumulative_bytes_sent_ += bytes_sent;
}
Task::SubType Task::GetSubType() const {
return Task::SubType::kNoSubType;
}
void Task::GetTerminationStatus(base::TerminationStatus* out_status,
int* out_error_code) const {
DCHECK(out_status);
DCHECK(out_error_code);
*out_status = base::TERMINATION_STATUS_STILL_RUNNING;
*out_error_code = 0;
}
std::u16string Task::GetProfileName() const {
return std::u16string();
}
SessionID Task::GetTabId() const {
return SessionID::InvalidValue();
}
bool Task::HasParentTask() const {
return GetParentTask() != nullptr;
}
base::WeakPtr<Task> Task::GetParentTask() const {
return nullptr;
}
bool Task::ReportsSqliteMemory() const {
return GetSqliteMemoryUsed() != -1;
}
int64_t Task::GetSqliteMemoryUsed() const {
return -1;
}
int64_t Task::GetV8MemoryAllocated() const {
return -1;
}
int64_t Task::GetV8MemoryUsed() const {
return -1;
}
bool Task::ReportsWebCacheStats() const {
return false;
}
blink::WebCacheResourceTypeStats Task::GetWebCacheStats() const {
return blink::WebCacheResourceTypeStats();
}
int Task::GetKeepaliveCount() const {
return -1;
}
bool Task::IsRunningInVM() const {
return false;
}
int64_t Task::GetNetworkUsageRate() const {
return network_sent_rate_ + network_read_rate_;
}
int64_t Task::GetCumulativeNetworkUsage() const {
return cumulative_bytes_sent_ + cumulative_bytes_read_;
}
// static
gfx::ImageSkia* Task::FetchIcon(int id, gfx::ImageSkia** result_image) {
if (!*result_image && ui::ResourceBundle::HasSharedInstance()) {
*result_image =
ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(id);
if (*result_image)
(*result_image)->MakeThreadSafe();
}
return *result_image;
}
base::WeakPtr<Task> Task::AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
} // namespace task_manager
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