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Move away from BrowserThread::FILE

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* Migrate TtsPlatformImplLinux away from using BrowserThread::FILE.
  https://chromium-review.googlesource.com/c/chromium/src/+/570022
* Move PdfConverter off the FILE thread.
  https://chromium-review.googlesource.com/c/chromium/src/+/592393
* https://chromium.googlesource.com/chromium/src/+/master/docs/task_scheduler_migration.md
This commit is contained in:
deepak1556 2018-04-09 14:46:52 +05:30 • committed by Samuel Attard
commit e3c580e905
6 changed files with 124 additions and 100 deletions
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15
atom/browser/api/atom_api_power_save_blocker.cc
View file

@ -6,13 +6,12 @@
#include <string>
#include "content/public/browser/browser_thread.h"
#include "base/task_scheduler/post_task.h"
#include "base/threading/thread_task_runner_handle.h"
#include "native_mate/dictionary.h"
#include "atom/common/node_includes.h"
using content::BrowserThread;
namespace mate {
template <>
@ -74,9 +73,13 @@ void PowerSaveBlocker::UpdatePowerSaveBlocker() {
if (!power_save_blocker_ || new_blocker_type != current_blocker_type_) {
auto new_blocker = std::make_unique<device::PowerSaveBlocker>(
new_blocker_type, device::PowerSaveBlocker::kReasonOther,
ATOM_PRODUCT_NAME,
BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE));
ATOM_PRODUCT_NAME, base::ThreadTaskRunnerHandle::Get(),
// This task runner may be used by some device service
// implementation bits to interface with dbus client code, which in
// turn imposes some subtle thread affinity on the clients. We
// therefore require a single-thread runner.
base::CreateSingleThreadTaskRunnerWithTraits(
{base::MayBlock(), base::TaskPriority::BACKGROUND}));
power_save_blocker_.swap(new_blocker);
current_blocker_type_ = new_blocker_type;
}

34
atom/browser/atom_download_manager_delegate.cc
View file

@ -14,6 +14,7 @@
#include "atom/common/options_switches.h"
#include "base/bind.h"
#include "base/files/file_util.h"
#include "base/task_scheduler/post_task.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/browser_context.h"
@ -26,15 +27,11 @@ namespace atom {
namespace {
// Generate default file path to save the download.
void CreateDownloadPath(
const GURL& url,
const std::string& content_disposition,
const std::string& suggested_filename,
const std::string& mime_type,
const base::FilePath& default_download_path,
const AtomDownloadManagerDelegate::CreateDownloadPathCallback& callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::FILE);
base::FilePath CreateDownloadPath(const GURL& url,
const std::string& content_disposition,
const std::string& suggested_filename,
const std::string& mime_type,
const base::FilePath& default_download_path) {
auto generated_name =
net::GenerateFileName(url, content_disposition, std::string(),
suggested_filename, mime_type, "download");
@ -42,9 +39,7 @@ void CreateDownloadPath(
if (!base::PathExists(default_download_path))
base::CreateDirectory(default_download_path);
base::FilePath path(default_download_path.Append(generated_name));
content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
base::BindOnce(callback, path));
return default_download_path.Append(generated_name);
}
} // namespace
@ -161,16 +156,17 @@ bool AtomDownloadManagerDelegate::DetermineDownloadTarget(
base::FilePath default_download_path =
browser_context->prefs()->GetFilePath(prefs::kDownloadDefaultDirectory);
CreateDownloadPathCallback download_path_callback =
base::Bind(&AtomDownloadManagerDelegate::OnDownloadPathGenerated,
weak_ptr_factory_.GetWeakPtr(), download->GetId(), callback);
content::BrowserThread::PostTask(
content::BrowserThread::FILE, FROM_HERE,
base::PostTaskWithTraitsAndReplyWithResult(
FROM_HERE,
{base::MayBlock(), base::TaskPriority::BACKGROUND,
base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN},
base::BindOnce(&CreateDownloadPath, download->GetURL(),
download->GetContentDisposition(),
download->GetSuggestedFilename(), download->GetMimeType(),
default_download_path, download_path_callback));
default_download_path),
base::BindOnce(&AtomDownloadManagerDelegate::OnDownloadPathGenerated,
weak_ptr_factory_.GetWeakPtr(), download->GetId(),
callback));
return true;
}

47
atom/browser/common_web_contents_delegate.cc
View file

@ -16,6 +16,8 @@
#include "atom/common/atom_constants.h"
#include "atom/common/options_switches.h"
#include "base/files/file_util.h"
#include "base/task_scheduler/post_task.h"
#include "base/threading/sequenced_task_runner_handle.h"
#include "chrome/browser/printing/print_preview_message_handler.h"
#include "chrome/browser/printing/print_view_manager_basic.h"
#include "chrome/browser/ssl/security_state_tab_helper.h"
@ -100,14 +102,14 @@ std::unique_ptr<base::DictionaryValue> CreateFileSystemValue(
}
void WriteToFile(const base::FilePath& path, const std::string& content) {
DCHECK_CURRENTLY_ON(BrowserThread::FILE);
base::AssertBlockingAllowed();
DCHECK(!path.empty());
base::WriteFile(path, content.data(), content.size());
}
void AppendToFile(const base::FilePath& path, const std::string& content) {
DCHECK_CURRENTLY_ON(BrowserThread::FILE);
base::AssertBlockingAllowed();
DCHECK(!path.empty());
base::AppendToFile(path, content.data(), content.size());
@ -142,7 +144,9 @@ bool IsDevToolsFileSystemAdded(content::WebContents* web_contents,
} // namespace
CommonWebContentsDelegate::CommonWebContentsDelegate()
: devtools_file_system_indexer_(new DevToolsFileSystemIndexer) {}
: devtools_file_system_indexer_(new DevToolsFileSystemIndexer),
file_task_runner_(
base::CreateSequencedTaskRunnerWithTraits({base::MayBlock()})) {}
CommonWebContentsDelegate::~CommonWebContentsDelegate() {}
@ -309,11 +313,13 @@ void CommonWebContentsDelegate::DevToolsSaveToFile(const std::string& url,
}
saved_files_[url] = path;
BrowserThread::PostTaskAndReply(
BrowserThread::FILE, FROM_HERE,
base::BindOnce(&WriteToFile, path, content),
base::BindOnce(&CommonWebContentsDelegate::OnDevToolsSaveToFile,
base::Unretained(this), url));
// Notify DevTools.
base::Value url_value(url);
base::Value file_system_path_value(path.AsUTF8Unsafe());
web_contents_->CallClientFunction("DevToolsAPI.savedURL", &url_value,
&file_system_path_value, nullptr);
file_task_runner_->PostTask(FROM_HERE,
base::BindOnce(&WriteToFile, path, content));
}
void CommonWebContentsDelegate::DevToolsAppendToFile(
@ -323,11 +329,12 @@ void CommonWebContentsDelegate::DevToolsAppendToFile(
if (it == saved_files_.end())
return;
BrowserThread::PostTaskAndReply(
BrowserThread::FILE, FROM_HERE,
base::BindOnce(&AppendToFile, it->second, content),
base::BindOnce(&CommonWebContentsDelegate::OnDevToolsAppendToFile,
base::Unretained(this), url));
// Notify DevTools.
base::Value url_value(url);
web_contents_->CallClientFunction("DevToolsAPI.appendedToURL", &url_value,
nullptr, nullptr);
file_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&AppendToFile, it->second, content));
}
void CommonWebContentsDelegate::DevToolsRequestFileSystems() {
@ -455,20 +462,6 @@ void CommonWebContentsDelegate::DevToolsSearchInPath(
base::Unretained(this), request_id, file_system_path));
}
void CommonWebContentsDelegate::OnDevToolsSaveToFile(const std::string& url) {
// Notify DevTools.
base::Value url_value(url);
web_contents_->CallClientFunction("DevToolsAPI.savedURL", &url_value, nullptr,
nullptr);
}
void CommonWebContentsDelegate::OnDevToolsAppendToFile(const std::string& url) {
// Notify DevTools.
base::Value url_value(url);
web_contents_->CallClientFunction("DevToolsAPI.appendedToURL", &url_value,
nullptr, nullptr);
}
void CommonWebContentsDelegate::OnDevToolsIndexingWorkCalculated(
int request_id,
const std::string& file_system_path,

12
atom/browser/common_web_contents_delegate.h
View file

@ -21,6 +21,10 @@
using brightray::DevToolsFileSystemIndexer;
namespace base {
class SequencedTaskRunner;
}
namespace atom {
class AtomBrowserContext;
@ -132,12 +136,6 @@ class CommonWebContentsDelegate
void ResetManagedWebContents(bool async);
private:
// Callback for when DevToolsSaveToFile has completed.
void OnDevToolsSaveToFile(const std::string& url);
// Callback for when DevToolsAppendToFile has completed.
void OnDevToolsAppendToFile(const std::string& url);
// DevTools index event callbacks.
void OnDevToolsIndexingWorkCalculated(int request_id,
const std::string& file_system_path,
@ -193,6 +191,8 @@ class CommonWebContentsDelegate
DevToolsIndexingJobsMap;
DevToolsIndexingJobsMap devtools_indexing_jobs_;
scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
DISALLOW_COPY_AND_ASSIGN(CommonWebContentsDelegate);
};

111
chromium_src/chrome/browser/printing/pdf_to_emf_converter.cc
View file

@ -17,6 +17,10 @@
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/ref_counted_delete_on_sequence.h"
#include "base/sequenced_task_runner.h"
#include "base/task_scheduler/post_task.h"
#include "base/threading/sequenced_task_runner_handle.h"
#include "base/threading/thread_task_runner_handle.h"
#include "chrome/common/chrome_utility_printing_messages.h"
#include "content/public/browser/browser_thread.h"
@ -40,24 +44,50 @@ class PdfConverterImpl;
// used to store PDF and metafiles. PDF should be gone by the time utility
// process exits. Metafiles should be gone when all LazyEmf destroyed.
class RefCountedTempDir
: public base::RefCountedThreadSafe<RefCountedTempDir,
BrowserThread::DeleteOnFileThread> {
: public base::RefCountedDeleteOnSequence<RefCountedTempDir> {
public:
RefCountedTempDir() { ignore_result(temp_dir_.CreateUniqueTempDir()); }
RefCountedTempDir()
: base::RefCountedDeleteOnSequence<RefCountedTempDir>(
base::SequencedTaskRunnerHandle::Get()) {
ignore_result(temp_dir_.CreateUniqueTempDir());
}
bool IsValid() const { return temp_dir_.IsValid(); }
const base::FilePath& GetPath() const { return temp_dir_.GetPath(); }
private:
friend struct BrowserThread::DeleteOnThread<BrowserThread::FILE>;
friend class base::RefCountedDeleteOnSequence<RefCountedTempDir>;
friend class base::DeleteHelper<RefCountedTempDir>;
~RefCountedTempDir() {}
base::ScopedTempDir temp_dir_;
DISALLOW_COPY_AND_ASSIGN(RefCountedTempDir);
};
using ScopedTempFile =
std::unique_ptr<base::File, BrowserThread::DeleteOnFileThread>;
class TempFile {
public:
explicit TempFile(base::File file)
: file_(std::move(file)),
blocking_task_runner_(base::SequencedTaskRunnerHandle::Get()) {
base::ThreadRestrictions::AssertIOAllowed();
}
~TempFile() {
blocking_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&CloseFileOnBlockingTaskRunner,
base::Passed(std::move(file_))));
}
base::File& file() { return file_; }
private:
base::File file_;
const scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
DISALLOW_COPY_AND_ASSIGN(TempFile);
};
using ScopedTempFile = std::unique_ptr<TempFile>;
// Wrapper for Emf to keep only file handle in memory, and load actual data only
// on playback. Emf::InitFromFile() can play metafile directly from disk, but it
@ -96,7 +126,7 @@ class PostScriptMetaFile : public LazyEmf {
: LazyEmf(temp_dir, std::move(file)) {}
~PostScriptMetaFile() override;
protected:
private:
// MetafilePlayer:
bool SafePlayback(HDC hdc) const override;
@ -104,10 +134,10 @@ class PostScriptMetaFile : public LazyEmf {
};
// Class for converting PDF to another format for printing (Emf, Postscript).
// Class uses 3 threads: UI, IO and FILE.
// Class uses UI thread, IO thread and |blocking_task_runner_|.
// Internal workflow is following:
// 1. Create instance on the UI thread. (files_, settings_,)
// 2. Create pdf file on the FILE thread.
// 2. Create pdf file on |blocking_task_runner_|.
// 3. Start utility process and start conversion on the IO thread.
// 4. Utility process returns page count.
// 5. For each page:
@ -139,7 +169,7 @@ class PdfConverterUtilityProcessHostClient
// sync message replies.
bool Send(IPC::Message* msg);
protected:
private:
class GetPageCallbackData {
public:
GetPageCallbackData(int page_number, PdfConverter::GetPageCallback callback)
@ -176,16 +206,13 @@ class PdfConverterUtilityProcessHostClient
// Helper functions: must be overridden by subclasses
// Set the process name
virtual base::string16 GetName() const;
base::string16 GetName() const;
// Create a metafileplayer subclass file from a temporary file.
virtual std::unique_ptr<MetafilePlayer> GetFileFromTemp(
std::unique_ptr<base::File, content::BrowserThread::DeleteOnFileThread>
temp_file);
std::unique_ptr<MetafilePlayer> GetFileFromTemp(ScopedTempFile temp_file);
// Send the messages to Start, GetPage, and Stop.
virtual void SendStartMessage(IPC::PlatformFileForTransit transit);
virtual void SendGetPageMessage(int page_number,
IPC::PlatformFileForTransit transit);
virtual void SendStopMessage();
void SendStartMessage(IPC::PlatformFileForTransit transit);
void SendGetPageMessage(int page_number, IPC::PlatformFileForTransit transit);
void SendStopMessage();
// Message handlers:
void OnPageCount(int page_count);
@ -218,13 +245,14 @@ class PdfConverterUtilityProcessHostClient
using GetPageCallbacks = std::queue<GetPageCallbackData>;
GetPageCallbacks get_page_callbacks_;
const scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
DISALLOW_COPY_AND_ASSIGN(PdfConverterUtilityProcessHostClient);
};
std::unique_ptr<MetafilePlayer>
PdfConverterUtilityProcessHostClient::GetFileFromTemp(
std::unique_ptr<base::File, content::BrowserThread::DeleteOnFileThread>
temp_file) {
ScopedTempFile temp_file) {
if (settings_.mode == PdfRenderSettings::Mode::POSTSCRIPT_LEVEL2 ||
settings_.mode == PdfRenderSettings::Mode::POSTSCRIPT_LEVEL3) {
return std::make_unique<PostScriptMetaFile>(temp_dir_,
@ -268,7 +296,7 @@ class PdfConverterImpl : public PdfConverter {
ScopedTempFile CreateTempFile(scoped_refptr<RefCountedTempDir>* temp_dir) {
if (!temp_dir->get())
*temp_dir = new RefCountedTempDir();
*temp_dir = base::MakeRefCounted<RefCountedTempDir>();
ScopedTempFile file;
if (!(*temp_dir)->IsValid())
return file;
@ -278,11 +306,11 @@ ScopedTempFile CreateTempFile(scoped_refptr<RefCountedTempDir>* temp_dir) {
<< (*temp_dir)->GetPath().value();
return file;
}
file.reset(new base::File(
file = std::make_unique<TempFile>(base::File(
path, base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE |
base::File::FLAG_READ | base::File::FLAG_DELETE_ON_CLOSE |
base::File::FLAG_TEMPORARY));
if (!file->IsValid()) {
if (!file->file().IsValid()) {
PLOG(ERROR) << "Failed to create " << path.value();
file.reset();
}
@ -292,16 +320,14 @@ ScopedTempFile CreateTempFile(scoped_refptr<RefCountedTempDir>* temp_dir) {
ScopedTempFile CreateTempPdfFile(
const scoped_refptr<base::RefCountedMemory>& data,
scoped_refptr<RefCountedTempDir>* temp_dir) {
DCHECK_CURRENTLY_ON(BrowserThread::FILE);
ScopedTempFile pdf_file = CreateTempFile(temp_dir);
if (!pdf_file ||
static_cast<int>(data->size()) !=
pdf_file->WriteAtCurrentPos(data->front_as<char>(), data->size())) {
if (!pdf_file || static_cast<int>(data->size()) !=
pdf_file->file().WriteAtCurrentPos(
data->front_as<char>(), data->size())) {
pdf_file.reset();
return pdf_file;
}
pdf_file->Seek(base::File::FROM_BEGIN, 0);
pdf_file->file().Seek(base::File::FROM_BEGIN, 0);
return pdf_file;
}
@ -332,12 +358,12 @@ void LazyEmf::Close() const {
}
bool LazyEmf::LoadEmf(Emf* emf) const {
file_->Seek(base::File::FROM_BEGIN, 0);
int64_t size = file_->GetLength();
file_->file().Seek(base::File::FROM_BEGIN, 0);
int64_t size = file_->file().GetLength();
if (size <= 0)
return false;
std::vector<char> data(size);
if (file_->ReadAtCurrentPos(data.data(), data.size()) != size)
if (file_->file().ReadAtCurrentPos(data.data(), data.size()) != size)
return false;
return emf->InitFromData(data.data(), data.size());
}
@ -378,7 +404,11 @@ bool PostScriptMetaFile::SafePlayback(HDC hdc) const {
PdfConverterUtilityProcessHostClient::PdfConverterUtilityProcessHostClient(
base::WeakPtr<PdfConverterImpl> converter,
const PdfRenderSettings& settings)
: converter_(converter), settings_(settings) {}
: converter_(converter),
settings_(settings),
blocking_task_runner_(base::CreateSequencedTaskRunnerWithTraits(
{base::MayBlock(), base::TaskPriority::USER_VISIBLE,
base::TaskShutdownBehavior::BLOCK_SHUTDOWN})) {}
PdfConverterUtilityProcessHostClient::~PdfConverterUtilityProcessHostClient() {}
@ -404,8 +434,8 @@ void PdfConverterUtilityProcessHostClient::Start(
->AsWeakPtr();
utility_process_host_->SetName(GetName());
BrowserThread::PostTaskAndReplyWithResult(
BrowserThread::FILE, FROM_HERE,
base::PostTaskAndReplyWithResult(
blocking_task_runner_.get(), FROM_HERE,
base::Bind(&CreateTempPdfFile, data, &temp_dir_),
base::Bind(&PdfConverterUtilityProcessHostClient::OnTempPdfReady, this));
}
@ -416,7 +446,7 @@ void PdfConverterUtilityProcessHostClient::OnTempPdfReady(ScopedTempFile pdf) {
return OnFailed();
// Should reply with OnPageCount().
SendStartMessage(
IPC::GetPlatformFileForTransit(pdf->GetPlatformFile(), false));
IPC::GetPlatformFileForTransit(pdf->file().GetPlatformFile(), false));
}
void PdfConverterUtilityProcessHostClient::OnPageCount(int page_count) {
@ -446,8 +476,9 @@ void PdfConverterUtilityProcessHostClient::GetPage(
if (!utility_process_host_)
return OnFailed();
BrowserThread::PostTaskAndReplyWithResult(
BrowserThread::FILE, FROM_HERE, base::Bind(&CreateTempFile, &temp_dir_),
base::PostTaskAndReplyWithResult(
blocking_task_runner_.get(), FROM_HERE,
base::Bind(&CreateTempFile, &temp_dir_),
base::Bind(&PdfConverterUtilityProcessHostClient::OnTempFileReady, this,
&get_page_callbacks_.back()));
}
@ -458,8 +489,8 @@ void PdfConverterUtilityProcessHostClient::OnTempFileReady(
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!utility_process_host_ || !temp_file)
return OnFailed();
IPC::PlatformFileForTransit transit =
IPC::GetPlatformFileForTransit(temp_file->GetPlatformFile(), false);
IPC::PlatformFileForTransit transit = IPC::GetPlatformFileForTransit(
temp_file->file().GetPlatformFile(), false);
callback_data->set_file(std::move(temp_file));
// Should reply with OnPageDone().
SendGetPageMessage(callback_data->page_number(), transit);

5
chromium_src/chrome/browser/speech/tts_linux.cc
View file

@ -11,6 +11,7 @@
#include "base/debug/leak_annotations.h"
#include "base/memory/singleton.h"
#include "base/synchronization/lock.h"
#include "base/task_scheduler/post_task.h"
#include "chrome/browser/speech/tts_platform.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/content_switches.h"
@ -97,8 +98,8 @@ TtsPlatformImplLinux::TtsPlatformImplLinux() : utterance_id_(0) {
if (!command_line.HasSwitch(switches::kEnableSpeechDispatcher))
return;
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::PostTaskWithTraits(
FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
base::Bind(&TtsPlatformImplLinux::Initialize, base::Unretained(this)));
}