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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 "ppapi/nacl_irt/plugin_startup.h"
#include "base/bind.h"
#include "base/file_descriptor_posix.h"
#include "base/logging.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 {
int g_nacl_browser_ipc_fd = -1;
int g_nacl_renderer_ipc_fd = -1;
int g_manifest_service_fd = -1;
base::WaitableEvent* g_shutdown_event = NULL;
base::Thread* g_io_thread = NULL;
ManifestService* g_manifest_service = NULL;
// 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_fd must be set.
DCHECK_NE(g_manifest_service_fd, -1);
// IOThread and shutdown event must be initialized in advance.
DCHECK(g_io_thread);
DCHECK(g_shutdown_event);
g_manifest_service = new ManifestService(
IPC::ChannelHandle(
"NaCl IPC", base::FileDescriptor(g_manifest_service_fd, false)),
g_io_thread->message_loop_proxy(),
g_shutdown_event);
event->Signal();
}
} // namespace
void SetIPCFileDescriptors(
int browser_ipc_fd, int renderer_ipc_fd, int manifest_service_fd) {
// The initialization must be only once.
DCHECK_EQ(g_nacl_browser_ipc_fd, -1);
DCHECK_EQ(g_nacl_renderer_ipc_fd, -1);
DCHECK_EQ(g_manifest_service_fd, -1);
g_nacl_browser_ipc_fd = browser_ipc_fd;
g_nacl_renderer_ipc_fd = renderer_ipc_fd;
g_manifest_service_fd = manifest_service_fd;
}
void StartUpPlugin() {
// The start up must be called only once.
DCHECK(!g_shutdown_event);
DCHECK(!g_io_thread);
g_shutdown_event = new base::WaitableEvent(true, false);
g_io_thread = new base::Thread("Chrome_NaClIOThread");
g_io_thread->StartWithOptions(
base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
if (g_manifest_service_fd != -1) {
// 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(true, false);
g_io_thread->message_loop_proxy()->PostTask(
FROM_HERE,
base::Bind(StartUpManifestServiceOnIOThread, &event));
event.Wait();
}
PPB_Audio_Shared::SetNaClMode();
}
int GetBrowserIPCFileDescriptor() {
// The descriptor must be initialized in advance.
DCHECK_NE(g_nacl_browser_ipc_fd, -1);
return g_nacl_browser_ipc_fd;
}
int GetRendererIPCFileDescriptor() {
// The descriptor must be initialized in advance.
DCHECK_NE(g_nacl_renderer_ipc_fd, -1);
return g_nacl_renderer_ipc_fd;
}
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
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