FontData.h - mozsearch

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GFX_FONT_DATA_H

#define GFX_FONT_DATA_H

#include "nsCOMPtr.h"

// Refcounted wrapper for downloaded font data.

class FontData final {

 public:

  // Construct from a malloc'd buffer. This takes ownership of the given buffer;

  // caller MUST NOT delete it or assume anything further about its lifetime.

  FontData(const uint8_t*&& aData, uint32_t aLength)

      : mData(aData), mLength(aLength) {}

  FontData() = delete;

  FontData(const FontData& aOther) = delete;

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FontData)

  const uint8_t* Data() const { return mData; }

  uint32_t Length() const { return mLength; }

 private:

  // Private destructor: this should only be destroyed by Release().

  ~FontData() { free(const_cast<uint8_t*>(mData)); }

  const uint8_t* const mData;

  uint32_t const mLength;

};

#endif  // GFX_FONT_DATA_H