DevNull.h

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#pragma once
 
#include "RE/B/BSTSingleton.h"
#include "RE/B/BSTSmartPointer.h"
#include "RE/L/Location.h"
#include "RE/S/Stream.h"
 
namespace RE
{
    namespace BSResource
    {
        class DevNull :
            public Location,                 // 00
            public BSTSingletonSDM<DevNull>  // 10
        {
        public:
            inline static constexpr auto RTTI = RTTI_BSResource____DevNull;
            inline static constexpr auto VTABLE = VTABLE_BSResource____DevNull;
 
            struct NullStream : public Stream
            {
            public:
                ~NullStream() override;  // 00
 
                // override (Stream)
                ErrorCode DoOpen() override;                                                                                // 01 - { return ErrorCode::kNone; }
                void      DoClose() override;                                                                               // 02 - { return; }
                void      DoClone(BSTSmartPointer<Stream>& a_out) const override;                                           // 05
                ErrorCode DoRead(void* a_buffer, std::uint64_t a_toRead, std::uint64_t& a_read) const override;             // 06
                ErrorCode DoWrite(const void* a_buffer, std::uint64_t a_toWrite, std::uint64_t& a_written) const override;  // 07
                ErrorCode DoSeek(std::uint64_t a_toSeek, SeekMode a_mode, std::uint64_t& a_sought) const override;          // 08
            };
#ifdef SKYRIM_SUPPORT_AE
            static_assert(sizeof(NullStream) == 0x18);
#else
            static_assert(sizeof(NullStream) == 0x10);
#endif
 
            ~DevNull() override;  // 00
 
            // override (Location)
            ErrorCode DoMount() override;                                                                                                      // 01 - { return ErrorCode::kNone; }
            void      DoUnmount() override;                                                                                                    // 02 - { return; }
            ErrorCode DoCreateStream(const char* a_path, BSTSmartPointer<Stream>& a_stream, Location*& a_location, bool a_readOnly) override;  // 03
            ErrorCode DoTraversePrefix(const char* a_path, LocationTraverser& a_traverser) override;                                           // 05 - { return ErrorCode::kNotExist; }
 
            // members
            std::uint8_t            pad11;       // 11
            std::uint16_t           pad12;       // 12
            std::uint32_t           pad14;       // 14
            BSTSmartPointer<Stream> nullReader;  // 18
            BSTSmartPointer<Stream> nullWriter;  // 20
        };
        static_assert(sizeof(DevNull) == 0x28);
    }
}