blob: b90f14ae80123e7535a58695ddf8e1f52b94a18b [file] [log] [blame]
// 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 "ppapi/nacl_irt/plugin_startup.h"
#include "base/bind.h"
#include "base/file_descriptor_posix.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/single_thread_task_runner.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread.h"
#include "ipc/ipc_channel_handle.h"
#include "ppapi/nacl_irt/manifest_service.h"
#include "ppapi/shared_impl/ppb_audio_shared.h"
namespace ppapi {
namespace {
IPC::ChannelHandle* g_nacl_browser_ipc_handle = nullptr;
IPC::ChannelHandle* g_nacl_renderer_ipc_handle = nullptr;
IPC::ChannelHandle* g_manifest_service_handle = nullptr;
base::WaitableEvent* g_shutdown_event = NULL;
base::Thread* g_io_thread = NULL;
ManifestService* g_manifest_service = NULL;
bool IsValidChannelHandle(IPC::ChannelHandle* handle) {
// ChannelMojo not yet supported.
return handle && handle->socket.fd != -1 && !handle->mojo_handle.is_valid();
}
// Creates the manifest service on IO thread so that its Listener's thread and
// IO thread are shared. Upon completion of the manifest service creation,
// event is signaled.
void StartUpManifestServiceOnIOThread(base::WaitableEvent* event) {
// The start up must be called only once.
DCHECK(!g_manifest_service);
// manifest_service_handle must be set.
DCHECK(IsValidChannelHandle(g_manifest_service_handle));
// IOThread and shutdown event must be initialized in advance.
DCHECK(g_io_thread);
DCHECK(g_shutdown_event);
g_manifest_service = new ManifestService(
*g_manifest_service_handle, g_io_thread->task_runner(),
g_shutdown_event);
event->Signal();
}
} // namespace
void SetIPCChannelHandles(
IPC::ChannelHandle browser_ipc_handle,
IPC::ChannelHandle renderer_ipc_handle,
IPC::ChannelHandle manifest_service_handle) {
// The initialization must be only once.
DCHECK(!g_nacl_browser_ipc_handle);
DCHECK(!g_nacl_renderer_ipc_handle);
DCHECK(!g_nacl_renderer_ipc_handle);
g_nacl_browser_ipc_handle = new IPC::ChannelHandle(browser_ipc_handle);
g_nacl_renderer_ipc_handle = new IPC::ChannelHandle(renderer_ipc_handle);
g_manifest_service_handle = new IPC::ChannelHandle(manifest_service_handle);
}
void StartUpPlugin() {
// The start up must be called only once.
DCHECK(!g_shutdown_event);
DCHECK(!g_io_thread);
g_shutdown_event =
new base::WaitableEvent(base::WaitableEvent::ResetPolicy::MANUAL,
base::WaitableEvent::InitialState::NOT_SIGNALED);
g_io_thread = new base::Thread("Chrome_NaClIOThread");
g_io_thread->StartWithOptions(
base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
if (IsValidChannelHandle(g_manifest_service_handle)) {
// Manifest service must be created on IOThread so that the main message
// handling will be done on the thread, which has a message loop
// even before irt_ppapi_start invocation.
// TODO(hidehiko,dmichael): This works, but is probably not well designed
// usage. Once a better approach is made, replace this by that way.
// (crbug.com/364241).
base::WaitableEvent event(base::WaitableEvent::ResetPolicy::MANUAL,
base::WaitableEvent::InitialState::NOT_SIGNALED);
g_io_thread->task_runner()->PostTask(
FROM_HERE, base::Bind(StartUpManifestServiceOnIOThread, &event));
event.Wait();
}
PPB_Audio_Shared::SetNaClMode();
}
IPC::ChannelHandle GetBrowserIPCChannelHandle() {
// The handle must be initialized in advance.
DCHECK(IsValidChannelHandle(g_nacl_browser_ipc_handle));
return *g_nacl_browser_ipc_handle;
}
IPC::ChannelHandle GetRendererIPCChannelHandle() {
// The handle must be initialized in advance.
DCHECK(IsValidChannelHandle(g_nacl_renderer_ipc_handle));
return *g_nacl_renderer_ipc_handle;
}
base::WaitableEvent* GetShutdownEvent() {
// The shutdown event must be initialized in advance.
DCHECK(g_shutdown_event);
return g_shutdown_event;
}
base::Thread* GetIOThread() {
// The IOThread must be initialized in advance.
DCHECK(g_io_thread);
return g_io_thread;
}
ManifestService* GetManifestService() {
return g_manifest_service;
}
} // namespace ppapi