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// Copyright (c) 2012 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 "remoting/host/chromoting_host_context.h"
#include "base/bind.h"
#include "base/threading/thread_restrictions.h"
#include "build/build_config.h"
#include "remoting/base/auto_thread.h"
#include "remoting/base/url_request_context_getter.h"
namespace remoting {
namespace {
void DisallowBlockingOperations() {
base::ThreadRestrictions::SetIOAllowed(false);
base::ThreadRestrictions::DisallowWaiting();
}
} // namespace
ChromotingHostContext::ChromotingHostContext(
scoped_refptr<AutoThreadTaskRunner> ui_task_runner,
scoped_refptr<AutoThreadTaskRunner> audio_task_runner,
scoped_refptr<AutoThreadTaskRunner> file_task_runner,
scoped_refptr<AutoThreadTaskRunner> input_task_runner,
scoped_refptr<AutoThreadTaskRunner> network_task_runner,
scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner,
scoped_refptr<AutoThreadTaskRunner> video_encode_task_runner,
scoped_refptr<net::URLRequestContextGetter> url_request_context_getter)
: ui_task_runner_(ui_task_runner),
audio_task_runner_(audio_task_runner),
file_task_runner_(file_task_runner),
input_task_runner_(input_task_runner),
network_task_runner_(network_task_runner),
video_capture_task_runner_(video_capture_task_runner),
video_encode_task_runner_(video_encode_task_runner),
url_request_context_getter_(url_request_context_getter) {
}
ChromotingHostContext::~ChromotingHostContext() {
}
scoped_ptr<ChromotingHostContext> ChromotingHostContext::Copy() {
return make_scoped_ptr(new ChromotingHostContext(
ui_task_runner_, audio_task_runner_, file_task_runner_,
input_task_runner_, network_task_runner_, video_capture_task_runner_,
video_encode_task_runner_, url_request_context_getter_));
}
scoped_refptr<AutoThreadTaskRunner> ChromotingHostContext::audio_task_runner()
const {
return audio_task_runner_;
}
scoped_refptr<AutoThreadTaskRunner> ChromotingHostContext::file_task_runner()
const {
return file_task_runner_;
}
scoped_refptr<AutoThreadTaskRunner> ChromotingHostContext::input_task_runner()
const {
return input_task_runner_;
}
scoped_refptr<AutoThreadTaskRunner> ChromotingHostContext::network_task_runner()
const {
return network_task_runner_;
}
scoped_refptr<AutoThreadTaskRunner> ChromotingHostContext::ui_task_runner()
const {
return ui_task_runner_;
}
scoped_refptr<AutoThreadTaskRunner>
ChromotingHostContext::video_capture_task_runner() const {
return video_capture_task_runner_;
}
scoped_refptr<AutoThreadTaskRunner>
ChromotingHostContext::video_encode_task_runner() const {
return video_encode_task_runner_;
}
scoped_refptr<net::URLRequestContextGetter>
ChromotingHostContext::url_request_context_getter() const {
return url_request_context_getter_;
}
scoped_ptr<ChromotingHostContext> ChromotingHostContext::Create(
scoped_refptr<AutoThreadTaskRunner> ui_task_runner) {
#if defined(OS_WIN)
// On Windows the AudioCapturer requires COM, so we run a single-threaded
// apartment, which requires a UI thread.
scoped_refptr<AutoThreadTaskRunner> audio_task_runner =
AutoThread::CreateWithLoopAndComInitTypes(
"ChromotingAudioThread", ui_task_runner, base::MessageLoop::TYPE_UI,
AutoThread::COM_INIT_STA);
#else // !defined(OS_WIN)
scoped_refptr<AutoThreadTaskRunner> audio_task_runner =
AutoThread::CreateWithType("ChromotingAudioThread", ui_task_runner,
base::MessageLoop::TYPE_IO);
#endif // !defined(OS_WIN)
scoped_refptr<AutoThreadTaskRunner> file_task_runner =
AutoThread::CreateWithType("ChromotingFileThread", ui_task_runner,
base::MessageLoop::TYPE_IO);
scoped_refptr<AutoThreadTaskRunner> network_task_runner =
AutoThread::CreateWithType("ChromotingNetworkThread", ui_task_runner,
base::MessageLoop::TYPE_IO);
network_task_runner->PostTask(FROM_HERE,
base::Bind(&DisallowBlockingOperations));
return make_scoped_ptr(new ChromotingHostContext(
ui_task_runner,
audio_task_runner,
file_task_runner,
AutoThread::CreateWithType("ChromotingInputThread", ui_task_runner,
base::MessageLoop::TYPE_IO),
network_task_runner,
AutoThread::Create("ChromotingCaptureThread", ui_task_runner),
AutoThread::Create("ChromotingEncodeThread", ui_task_runner),
make_scoped_refptr(
new URLRequestContextGetter(network_task_runner, file_task_runner))));
}
#if defined(OS_CHROMEOS)
// static
scoped_ptr<ChromotingHostContext> ChromotingHostContext::CreateForChromeOS(
scoped_refptr<net::URLRequestContextGetter> url_request_context_getter,
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> file_task_runner) {
DCHECK(url_request_context_getter.get());
// AutoThreadTaskRunner is a TaskRunner with the special property that it will
// continue to process tasks until no references remain, at least. The
// QuitClosure we usually pass does the simple thing of stopping the
// underlying TaskRunner. Since we are re-using browser's threads, we cannot
// stop them explicitly. Therefore, base::DoNothing is passed in as the quit
// closure.
scoped_refptr<AutoThreadTaskRunner> io_auto_task_runner =
new AutoThreadTaskRunner(io_task_runner, base::Bind(&base::DoNothing));
scoped_refptr<AutoThreadTaskRunner> file_auto_task_runner =
new AutoThreadTaskRunner(file_task_runner, base::Bind(&base::DoNothing));
scoped_refptr<AutoThreadTaskRunner> ui_auto_task_runner =
new AutoThreadTaskRunner(ui_task_runner, base::Bind(&base::DoNothing));
// Use browser's file thread as the joiner as it is the only browser-thread
// that allows blocking I/O, which is required by thread joining.
return make_scoped_ptr(new ChromotingHostContext(
ui_auto_task_runner,
AutoThread::Create("ChromotingAudioThread", file_auto_task_runner),
file_auto_task_runner,
ui_auto_task_runner, // input_task_runner
io_auto_task_runner, // network_task_runner
ui_auto_task_runner, // video_capture_task_runner
AutoThread::Create("ChromotingEncodeThread", file_auto_task_runner),
url_request_context_getter));
}
#endif // defined(OS_CHROMEOS)
} // namespace remoting
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