WStr.hh

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/*
 * Copyright 2021 Assured Information Security, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
 
#include "Utf16String.hh"
 
#include <introvirt/core/memory/guest_ptr.hh>
#include <introvirt/fwd.hh>
 
#include <cstdint>
#include <memory>
 
namespace introvirt {
namespace windows {
 
class WStr : public Utf16String {
 
  public:
    uint16_t Length() const override;
 
    uint16_t MaximumLength() const;
 
    const uint8_t* Buffer() const override;
 
    void set(const std::u16string& value) override;
    using Utf16String::set;
 
    guest_ptr<void> ptr() const;
 
    WStr(const guest_ptr<void>& ptr);
 
    WStr(const guest_ptr<void>& ptr, size_t buffer_size);
 
    WStr(const guest_ptr<void>& ptr, size_t buffer_size, size_t len);
 
    WStr(WStr&&) noexcept;
    WStr& operator=(WStr&&) noexcept;
    ~WStr() override;
 
  private:
    guest_ptr<char16_t[]> buf_;
    size_t len_;
};
 
} /* namespace windows */
} /* namespace introvirt */