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// 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 PPAPI_PROXY_PPB_BUFFER_PROXY_H_
#define PPAPI_PROXY_PPB_BUFFER_PROXY_H_
#include "base/memory/shared_memory.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/proxy/interface_proxy.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/thunk/ppb_buffer_api.h"
namespace ppapi {
class HostResource;
namespace proxy {
class SerializedHandle;
class Buffer : public thunk::PPB_Buffer_API, public Resource {
public:
Buffer(const HostResource& resource,
const base::SharedMemoryHandle& shm_handle,
uint32_t size);
virtual ~Buffer();
// Resource overrides.
virtual thunk::PPB_Buffer_API* AsPPB_Buffer_API() OVERRIDE;
// PPB_Buffer_API implementation.
virtual PP_Bool Describe(uint32_t* size_in_bytes) OVERRIDE;
virtual PP_Bool IsMapped() OVERRIDE;
virtual void* Map() OVERRIDE;
virtual void Unmap() OVERRIDE;
// Trusted
virtual int32_t GetSharedMemory(int* handle) OVERRIDE;
private:
base::SharedMemory shm_;
uint32_t size_;
int map_count_;
DISALLOW_COPY_AND_ASSIGN(Buffer);
};
class PPB_Buffer_Proxy : public InterfaceProxy {
public:
explicit PPB_Buffer_Proxy(Dispatcher* dispatcher);
virtual ~PPB_Buffer_Proxy();
static PP_Resource CreateProxyResource(PP_Instance instance,
uint32_t size);
static PP_Resource AddProxyResource(const HostResource& resource,
base::SharedMemoryHandle shm_handle,
uint32_t size);
// InterfaceProxy implementation.
virtual bool OnMessageReceived(const IPC::Message& msg);
static const ApiID kApiID = API_ID_PPB_BUFFER;
private:
// Message handlers.
void OnMsgCreate(PP_Instance instance,
uint32_t size,
HostResource* result_resource,
ppapi::proxy::SerializedHandle* result_shm_handle);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PPB_BUFFER_PROXY_H_
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