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// Copyright (c) 2013 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 CHROME_RENDERER_PEPPER_PEPPER_SHARED_MEMORY_MESSAGE_FILTER_H_
#define CHROME_RENDERER_PEPPER_PEPPER_SHARED_MEMORY_MESSAGE_FILTER_H_
#include <stdint.h>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/host/instance_message_filter.h"
namespace content {
class RendererPpapiHost;
}
namespace ppapi {
namespace proxy {
class SerializedHandle;
}
}
// Implements the backend for shared memory messages from a plugin process.
class PepperSharedMemoryMessageFilter
: public ppapi::host::InstanceMessageFilter {
public:
explicit PepperSharedMemoryMessageFilter(content::RendererPpapiHost* host);
~PepperSharedMemoryMessageFilter() override;
// InstanceMessageFilter:
bool OnInstanceMessageReceived(const IPC::Message& msg) override;
bool Send(IPC::Message* msg);
private:
// Message handlers.
void OnHostMsgCreateSharedMemory(
PP_Instance instance,
uint32_t size,
int* host_shm_handle_id,
ppapi::proxy::SerializedHandle* plugin_shm_handle);
content::RendererPpapiHost* host_;
DISALLOW_COPY_AND_ASSIGN(PepperSharedMemoryMessageFilter);
};
#endif // CHROME_RENDERER_PEPPER_PEPPER_SHARED_MEMORY_MESSAGE_FILTER_H_
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