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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_PLUGIN_ARRAY_BUFFER_VAR_H_
#define PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/memory/shared_memory.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_stdint.h"
#include "ppapi/shared_impl/var.h"
namespace ppapi {
// Represents a plugin-side ArrayBufferVar. In the plugin process, it's
// owned as a vector.
class PluginArrayBufferVar : public ArrayBufferVar {
public:
explicit PluginArrayBufferVar(uint32_t size_in_bytes);
PluginArrayBufferVar(uint32_t size_in_bytes,
base::SharedMemoryHandle plugin_handle);
~PluginArrayBufferVar() override;
// ArrayBufferVar implementation.
void* Map() override;
void Unmap() override;
uint32_t ByteLength() override;
bool CopyToNewShmem(
PP_Instance instance,
int* host_handle,
base::SharedMemoryHandle* plugin_handle) override;
private:
// Non-shared memory
std::vector<uint8_t> buffer_;
// Shared memory
base::SharedMemoryHandle plugin_handle_;
std::unique_ptr<base::SharedMemory> shmem_;
uint32_t size_in_bytes_;
DISALLOW_COPY_AND_ASSIGN(PluginArrayBufferVar);
};
} // namespace ppapi
#endif // PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
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