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// Copyright 2014 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 "mojo/shell/runner/host/in_process_native_runner.h"
#include <utility>
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/location.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task_runner.h"
#include "base/thread_task_runner_handle.h"
#include "base/threading/platform_thread.h"
#include "mojo/shell/runner/host/native_application_support.h"
#include "mojo/shell/runner/host/out_of_process_native_runner.h"
#include "mojo/shell/runner/init.h"
namespace mojo {
namespace shell {
InProcessNativeRunner::InProcessNativeRunner() : app_library_(nullptr) {}
InProcessNativeRunner::~InProcessNativeRunner() {
// It is important to let the thread exit before unloading the DSO (when
// app_library_ is destructed), because the library may have registered
// thread-local data and destructors to run on thread termination.
if (thread_) {
DCHECK(thread_->HasBeenStarted());
DCHECK(!thread_->HasBeenJoined());
thread_->Join();
}
}
void InProcessNativeRunner::Start(
const base::FilePath& app_path,
const Identity& target,
bool start_sandboxed,
mojom::ShellClientRequest request,
const base::Callback<void(base::ProcessId)>& pid_available_callback,
const base::Closure& app_completed_callback) {
app_path_ = app_path;
DCHECK(!request_.is_pending());
request_ = std::move(request);
DCHECK(app_completed_callback_runner_.is_null());
app_completed_callback_runner_ = base::Bind(
&base::TaskRunner::PostTask, base::ThreadTaskRunnerHandle::Get(),
FROM_HERE, app_completed_callback);
DCHECK(!thread_);
std::string thread_name = "mojo:app_thread";
#if defined(OS_WIN)
thread_name = base::WideToUTF8(app_path_.BaseName().value());
#endif
thread_.reset(new base::DelegateSimpleThread(this, thread_name));
thread_->Start();
pid_available_callback.Run(base::kNullProcessId);
}
void InProcessNativeRunner::InitHost(mojom::ShellClientFactoryPtr factory,
const String& name,
mojom::ShellClientRequest request) {
NOTREACHED(); // Can't host another process in this runner.
}
void InProcessNativeRunner::Run() {
DVLOG(2) << "Loading/running Mojo app in process from library: "
<< app_path_.value()
<< " thread id=" << base::PlatformThread::CurrentId();
// TODO(vtl): ScopedNativeLibrary doesn't have a .get() method!
base::NativeLibrary app_library = LoadNativeApplication(app_path_);
app_library_.Reset(app_library);
// This hangs on Windows in the component build, so skip it since it's
// unnecessary.
#if !(defined(COMPONENT_BUILD) && defined(OS_WIN))
CallLibraryEarlyInitialization(app_library);
#endif
RunNativeApplication(app_library, std::move(request_));
app_completed_callback_runner_.Run();
app_completed_callback_runner_.Reset();
}
scoped_ptr<NativeRunner> InProcessNativeRunnerFactory::Create(
const base::FilePath& app_path) {
// Non-Mojo apps are always run in a new process.
if (!app_path.MatchesExtension(FILE_PATH_LITERAL(".mojo"))) {
return make_scoped_ptr(
new OutOfProcessNativeRunner(launch_process_runner_, nullptr));
}
return make_scoped_ptr(new InProcessNativeRunner);
}
} // namespace shell
} // namespace mojo
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