blob: 921a9e8786554c6a70f4777a39b22cc45c3290ca [file] [log] [blame]
// 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.
#ifndef CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_
#define CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "base/callback.h"
#include "base/memory/shared_memory.h"
#include "base/metrics/user_metrics_action.h"
#include "base/single_thread_task_runner.h"
#include "content/common/content_export.h"
#include "content/public/child/child_thread.h"
#include "ipc/ipc_channel_proxy.h"
#include "third_party/blink/public/platform/web_string.h"
class GURL;
namespace base {
class WaitableEvent;
}
namespace blink {
struct UserAgentMetadata;
namespace scheduler {
enum class WebRendererProcessType;
}
} // namespace blink
namespace IPC {
class MessageFilter;
class SyncChannel;
class SyncMessageFilter;
}
namespace v8 {
class Extension;
}
namespace content {
class RenderThreadObserver;
class ResourceDispatcherDelegate;
class CONTENT_EXPORT RenderThread : virtual public ChildThread {
public:
// Returns the one render thread for this process. Note that this can only
// be accessed when running on the render thread itself.
static RenderThread* Get();
// Returns true if the current thread is the main thread.
static bool IsMainThread();
RenderThread();
~RenderThread() override;
virtual IPC::SyncChannel* GetChannel() = 0;
virtual std::string GetLocale() = 0;
virtual IPC::SyncMessageFilter* GetSyncMessageFilter() = 0;
// Called to add or remove a listener for a particular message routing ID.
// These methods normally get delegated to a MessageRouter.
virtual void AddRoute(int32_t routing_id, IPC::Listener* listener) = 0;
virtual void RemoveRoute(int32_t routing_id) = 0;
virtual int GenerateRoutingID() = 0;
// These map to IPC::ChannelProxy methods.
virtual void AddFilter(IPC::MessageFilter* filter) = 0;
virtual void RemoveFilter(IPC::MessageFilter* filter) = 0;
// Add/remove observers for the process.
virtual void AddObserver(RenderThreadObserver* observer) = 0;
virtual void RemoveObserver(RenderThreadObserver* observer) = 0;
// Set the ResourceDispatcher delegate object for this process.
virtual void SetResourceDispatcherDelegate(
ResourceDispatcherDelegate* delegate) = 0;
// Asks the host to create a block of shared memory for the renderer.
// The shared memory allocated by the host is returned back.
virtual std::unique_ptr<base::SharedMemory> HostAllocateSharedMemoryBuffer(
size_t buffer_size) = 0;
// Registers the given V8 extension with WebKit.
virtual void RegisterExtension(std::unique_ptr<v8::Extension> extension) = 0;
// Post task to all worker threads. Returns number of workers.
virtual int PostTaskToAllWebWorkers(const base::Closure& closure) = 0;
// Resolve the proxy servers to use for a given url. On success true is
// returned and |proxy_list| is set to a PAC string containing a list of
// proxy servers.
virtual bool ResolveProxy(const GURL& url, std::string* proxy_list) = 0;
// Gets the shutdown event for the process.
virtual base::WaitableEvent* GetShutdownEvent() = 0;
// Retrieve the process ID of the browser process.
virtual int32_t GetClientId() = 0;
// Get the online status of the browser - false when there is no network
// access.
virtual bool IsOnline() = 0;
// Set the renderer process type.
virtual void SetRendererProcessType(
blink::scheduler::WebRendererProcessType type) = 0;
// Returns the user-agent string.
virtual blink::WebString GetUserAgent() = 0;
virtual const blink::UserAgentMetadata& GetUserAgentMetadata() = 0;
};
} // namespace content
#endif // CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_