ObjStream.h

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// ObjStream.h
//
// Copyright (c) 2010, 2015 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// 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 <string>

#include "../Exception.h"
#include "../Util/MR_Types.h"
#include "../Util/OS.h"

#if defined(_WIN32) && defined(HR_ENGINE_SHARED)
#   ifdef MR_ENGINE
#       define MR_DllDeclare   __declspec( dllexport )
#   else
#       define MR_DllDeclare   __declspec( dllimport )
#   endif
#else
#   define MR_DllDeclare
#endif

namespace HoverRace {
namespace Parcel {

class MR_DllDeclare ObjStreamExn : public Exception
{
    using SUPER = Exception;
    
public:
    ObjStreamExn() : SUPER() { }
    ObjStreamExn(const std::string &msg) : SUPER(msg) { }
    ObjStreamExn(const Util::OS::path_t &path, const std::string &details);
    virtual ~ObjStreamExn() noexcept { }
};

class MR_DllDeclare ObjStream
{
private:
    ObjStream() { }
public:
    ObjStream(const Util::OS::path_t &name, int version, bool writing) :
        name(name), version(version), writing(writing)
        { }
    virtual ~ObjStream() { }

public:
    const Util::OS::path_t &GetName() const { return name; }
    int GetVersion() const { return version; }
    bool IsWriting() const { return writing; }

public:
    virtual void Write(const void *buf, size_t ct) = 0;

    virtual void WriteUInt8(MR_UInt8 i) = 0;
    friend ObjStream &operator<<(ObjStream &os, MR_UInt8 i) { os.WriteUInt8(i); return os; }

    virtual void WriteInt16(MR_Int16 i) = 0;
    friend ObjStream &operator<<(ObjStream &os, MR_Int16 i) { os.WriteInt16(i); return os; }

    virtual void WriteUInt16(MR_UInt16 i) = 0;
    friend ObjStream &operator<<(ObjStream &os, MR_UInt16 i) { os.WriteUInt16(i); return os; }

    virtual void WriteInt32(MR_Int32 i) = 0;
    friend ObjStream &operator<<(ObjStream &os, MR_Int32 i) { os.WriteInt32(i); return os; }

    virtual void WriteUInt32(MR_UInt32 i) = 0;
    friend ObjStream &operator<<(ObjStream &os, MR_UInt32 i) { os.WriteUInt32(i); return os; }

    virtual void WriteString(const std::string &s) = 0;
    friend ObjStream &operator<<(ObjStream &os, const std::string &s) { os.WriteString(s); return os; }

#   if defined(_WIN32) && !defined(WITH_OBJSTREAM)
        virtual void WriteCString(const CString &s) = 0;
        friend ObjStream &operator<<(ObjStream &os, const CString &s) { os.WriteCString(s); return os; }
#   endif

    virtual void Read(void *buf, size_t ct) = 0;

    virtual void ReadUInt8(MR_UInt8 &i) = 0;
    friend ObjStream &operator>>(ObjStream &os, MR_UInt8 &i) { os.ReadUInt8(i); return os; }

    virtual void ReadInt16(MR_Int16 &i) = 0;
    friend ObjStream &operator>>(ObjStream &os, MR_Int16 &i) { os.ReadInt16(i); return os; }

    virtual void ReadUInt16(MR_UInt16 &i) = 0;
    friend ObjStream &operator>>(ObjStream &os, MR_UInt16 &i) { os.ReadUInt16(i); return os; }

    virtual void ReadInt32(MR_Int32 &i) = 0;
    friend ObjStream &operator>>(ObjStream &os, MR_Int32 &i) { os.ReadInt32(i); return os; }

    virtual void ReadUInt32(MR_UInt32 &i) = 0;
    friend ObjStream &operator>>(ObjStream &os, MR_UInt32 &i) { os.ReadUInt32(i); return os; }

    virtual void ReadString(std::string &s) = 0;
    friend ObjStream &operator>>(ObjStream &os, std::string &s) { os.ReadString(s); return os; }

#   if defined(_WIN32) && !defined(WITH_OBJSTREAM)
        virtual void ReadCString(CString &s) = 0;
        friend ObjStream &operator>>(ObjStream &os, CString &s) { os.ReadCString(s); return os; }
#   endif

private:
    Util::OS::path_t name;
    int version;
    bool writing;
};
typedef std::shared_ptr<ObjStream> ObjStreamPtr;

}  // namespace Parcel
}  // namespace HoverRace

#undef MR_DllDeclare