/* 7zTypes.h -- Basic types
2018-08-04 : Igor Pavlov : Public domain */

#ifndef __7Z_TYPES_H
#define __7Z_TYPES_H

#ifdef _WIN32
/* #include <windows.h> */
#endif

#ifdef EFIAPI
  #include "UefiLzma.h"
#else
  #include <stddef.h>
#endif

#ifndef EXTERN_C_BEGIN
  #ifdef __cplusplus
#define EXTERN_C_BEGIN  extern "C" {
#define EXTERN_C_END    }
  #else
#define EXTERN_C_BEGIN
#define EXTERN_C_END
  #endif
#endif

EXTERN_C_BEGIN

#define SZ_OK  0

#define SZ_ERROR_DATA         1
#define SZ_ERROR_MEM          2
#define SZ_ERROR_CRC          3
#define SZ_ERROR_UNSUPPORTED  4
#define SZ_ERROR_PARAM        5
#define SZ_ERROR_INPUT_EOF    6
#define SZ_ERROR_OUTPUT_EOF   7
#define SZ_ERROR_READ         8
#define SZ_ERROR_WRITE        9
#define SZ_ERROR_PROGRESS     10
#define SZ_ERROR_FAIL         11
#define SZ_ERROR_THREAD       12

#define SZ_ERROR_ARCHIVE     16
#define SZ_ERROR_NO_ARCHIVE  17

typedef int SRes;

#ifdef _WIN32

/* typedef DWORD WRes; */
typedef unsigned WRes;
#define MY_SRes_HRESULT_FROM_WRes(x)  HRESULT_FROM_WIN32(x)

#else

typedef int WRes;
#define MY__FACILITY_WIN32  7
#define MY__FACILITY__WRes  MY__FACILITY_WIN32
#define MY_SRes_HRESULT_FROM_WRes(x)  ((HRESULT)(x) <= 0 ? ((HRESULT)(x)) : ((HRESULT) (((x) & 0x0000FFFF) | (MY__FACILITY__WRes << 16) | 0x80000000)))

#endif

#ifndef RINOK
#define RINOK(x)  { int __result__ = (x); if (__result__ != 0) return __result__; }
#endif

typedef unsigned char  Byte;
typedef short          Int16;
typedef unsigned short UInt16;

#ifdef _LZMA_UINT32_IS_ULONG
typedef long          Int32;
typedef unsigned long UInt32;
#else
typedef int          Int32;
typedef unsigned int UInt32;
#endif

#ifdef _SZ_NO_INT_64

/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers.
   NOTES: Some code will work incorrectly in that case! */

typedef long          Int64;
typedef unsigned long UInt64;

#else

  #if defined (_MSC_VER) || defined (__BORLANDC__)
typedef __int64          Int64;
typedef unsigned __int64 UInt64;
#define UINT64_CONST(n)  n
  #else
typedef long long int          Int64;
typedef unsigned long long int UInt64;
#define UINT64_CONST(n)  n ## ULL
  #endif

#endif

#ifdef _LZMA_NO_SYSTEM_SIZE_T
typedef UInt32 SizeT;
#else
typedef size_t SizeT;
#endif

typedef int BoolInt;
/* typedef BoolInt Bool; */
#define True   1
#define False  0

#ifdef _WIN32
#define MY_STD_CALL  __stdcall
#else
#define MY_STD_CALL
#endif

#if defined (_MSC_VER) && !defined (__clang__)

  #if _MSC_VER >= 1300
#define MY_NO_INLINE  __declspec(noinline)
  #else
#define MY_NO_INLINE
  #endif

#define MY_FORCE_INLINE  __forceinline

#define MY_CDECL      __cdecl
#define MY_FAST_CALL  __fastcall

#else

#define MY_NO_INLINE
#define MY_FORCE_INLINE
#define MY_CDECL
#define MY_FAST_CALL

/* inline keyword : for C++ / C99 */

/* GCC, clang: */

/*
#if defined (__GNUC__) && (__GNUC__ >= 4)
#define MY_FORCE_INLINE __attribute__((always_inline))
#define MY_NO_INLINE __attribute__((noinline))
#endif
*/

#endif

/* The following interfaces use first parameter as pointer to structure */

typedef struct IByteIn IByteIn;
struct IByteIn {
  Byte    (*Read)(
    const IByteIn  *p
    );                            /* reads one byte, returns 0 in case of EOF or error */
};

#define IByteIn_Read(p)  (p)->Read(p)

typedef struct IByteOut IByteOut;
struct IByteOut {
  void    (*Write)(
    const IByteOut  *p,
    Byte            b
    );
};

#define IByteOut_Write(p, b)  (p)->Write(p, b)

typedef struct ISeqInStream ISeqInStream;
struct ISeqInStream {
  SRes    (*Read)(
    const ISeqInStream  *p,
    void                *buf,
    size_t              *size
    );

  /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
     (output(*size) < input(*size)) is allowed */
};

#define ISeqInStream_Read(p, buf, size)  (p)->Read(p, buf, size)

/* it can return SZ_ERROR_INPUT_EOF */
SRes
SeqInStream_Read (
  const ISeqInStream  *stream,
  void                *buf,
  size_t              size
  );

SRes
SeqInStream_Read2 (
  const ISeqInStream  *stream,
  void                *buf,
  size_t              size,
  SRes                errorType
  );

SRes
SeqInStream_ReadByte (
  const ISeqInStream  *stream,
  Byte                *buf
  );

typedef struct ISeqOutStream ISeqOutStream;
struct ISeqOutStream {
  size_t    (*Write)(
    const ISeqOutStream  *p,
    const void           *buf,
    size_t               size
    );

  /* Returns: result - the number of actually written bytes.
     (result < size) means error */
};

#define ISeqOutStream_Write(p, buf, size)  (p)->Write(p, buf, size)

typedef enum {
  SZ_SEEK_SET = 0,
  SZ_SEEK_CUR = 1,
  SZ_SEEK_END = 2
} ESzSeek;

typedef struct ISeekInStream ISeekInStream;
struct ISeekInStream {
  SRes    (*Read)(
    const ISeekInStream  *p,
    void                 *buf,
    size_t               *size
    );                                                            /* same as ISeqInStream::Read */
  SRes    (*Seek)(
    const ISeekInStream  *p,
    Int64                *pos,
    ESzSeek              origin
    );
};

#define ISeekInStream_Read(p, buf, size)    (p)->Read(p, buf, size)
#define ISeekInStream_Seek(p, pos, origin)  (p)->Seek(p, pos, origin)

typedef struct ILookInStream ILookInStream;
struct ILookInStream {
  SRes    (*Look)(
    const ILookInStream  *p,
    const void           **buf,
    size_t               *size
    );

  /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
     (output(*size) > input(*size)) is not allowed
     (output(*size) < input(*size)) is allowed */
  SRes    (*Skip)(
    const ILookInStream  *p,
    size_t               offset
    );
  /* offset must be <= output(*size) of Look */

  SRes    (*Read)(
    const ILookInStream  *p,
    void                 *buf,
    size_t               *size
    );
  /* reads directly (without buffer). It's same as ISeqInStream::Read */
  SRes    (*Seek)(
    const ILookInStream  *p,
    Int64                *pos,
    ESzSeek              origin
    );
};

#define ILookInStream_Look(p, buf, size)    (p)->Look(p, buf, size)
#define ILookInStream_Skip(p, offset)       (p)->Skip(p, offset)
#define ILookInStream_Read(p, buf, size)    (p)->Read(p, buf, size)
#define ILookInStream_Seek(p, pos, origin)  (p)->Seek(p, pos, origin)

SRes
LookInStream_LookRead (
  const ILookInStream  *stream,
  void                 *buf,
  size_t               *size
  );

SRes
LookInStream_SeekTo (
  const ILookInStream  *stream,
  UInt64               offset
  );

/* reads via ILookInStream::Read */
SRes
LookInStream_Read2 (
  const ILookInStream  *stream,
  void                 *buf,
  size_t               size,
  SRes                 errorType
  );

SRes
LookInStream_Read (
  const ILookInStream  *stream,
  void                 *buf,
  size_t               size
  );

typedef struct {
  ILookInStream          vt;
  const ISeekInStream    *realStream;

  size_t                 pos;
  size_t                 size; /* it's data size */

  /* the following variables must be set outside */
  Byte                   *buf;
  size_t                 bufSize;
} CLookToRead2;

void
LookToRead2_CreateVTable (
  CLookToRead2  *p,
  int           lookahead
  );

#define LookToRead2_Init(p)  { (p)->pos = (p)->size = 0; }

typedef struct {
  ISeqInStream           vt;
  const ILookInStream    *realStream;
} CSecToLook;

void
SecToLook_CreateVTable (
  CSecToLook  *p
  );

typedef struct {
  ISeqInStream           vt;
  const ILookInStream    *realStream;
} CSecToRead;

void
SecToRead_CreateVTable (
  CSecToRead  *p
  );

typedef struct ICompressProgress ICompressProgress;

struct ICompressProgress {
  SRes    (*Progress)(
    const ICompressProgress  *p,
    UInt64                   inSize,
    UInt64                   outSize
    );

  /* Returns: result. (result != SZ_OK) means break.
     Value (UInt64)(Int64)-1 for size means unknown value. */
};

#define ICompressProgress_Progress(p, inSize, outSize)  (p)->Progress(p, inSize, outSize)

typedef struct ISzAlloc ISzAlloc;
typedef const ISzAlloc  *ISzAllocPtr;

struct ISzAlloc {
  void    *(*Alloc)(
    ISzAllocPtr  p,
    size_t       size
    );
  void    (*Free)(
    ISzAllocPtr  p,
    void         *address
    );                                        /* address can be 0 */
};

#define ISzAlloc_Alloc(p, size)  (p)->Alloc(p, size)
#define ISzAlloc_Free(p, a)      (p)->Free(p, a)

/* deprecated */
#define IAlloc_Alloc(p, size)  ISzAlloc_Alloc(p, size)
#define IAlloc_Free(p, a)      ISzAlloc_Free(p, a)

#ifndef MY_offsetof
  #ifdef offsetof
#define MY_offsetof(type, m)  offsetof(type, m)

/*
#define MY_offsetof(type, m) FIELD_OFFSET(type, m)
*/
  #else
#define MY_offsetof(type, m)  ((size_t)&(((type *)0)->m))
  #endif
#endif

#ifndef MY_container_of

/*
#define MY_container_of(ptr, type, m) container_of(ptr, type, m)
#define MY_container_of(ptr, type, m) CONTAINING_RECORD(ptr, type, m)
#define MY_container_of(ptr, type, m) ((type *)((char *)(ptr) - offsetof(type, m)))
#define MY_container_of(ptr, type, m) (&((type *)0)->m == (ptr), ((type *)(((char *)(ptr)) - MY_offsetof(type, m))))
*/

/*
  GCC shows warning: "perhaps the 'offsetof' macro was used incorrectly"
    GCC 3.4.4 : classes with constructor
    GCC 4.8.1 : classes with non-public variable members"
*/

#define MY_container_of(ptr, type, m)  ((type *)((char *)(1 ? (ptr) : &((type *)0)->m) - MY_offsetof(type, m)))

#endif

#define CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m)  ((type *)(ptr))

/*
#define CONTAINER_FROM_VTBL(ptr, type, m) CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m)
*/
#define CONTAINER_FROM_VTBL(ptr, type, m)  MY_container_of(ptr, type, m)

#define CONTAINER_FROM_VTBL_CLS(ptr, type, m)  CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m)

/*
#define CONTAINER_FROM_VTBL_CLS(ptr, type, m) CONTAINER_FROM_VTBL(ptr, type, m)
*/

#ifdef _WIN32

#define CHAR_PATH_SEPARATOR     '\\'
#define WCHAR_PATH_SEPARATOR    L'\\'
#define STRING_PATH_SEPARATOR   "\\"
#define WSTRING_PATH_SEPARATOR  L"\\"

#else

#define CHAR_PATH_SEPARATOR     '/'
#define WCHAR_PATH_SEPARATOR    L'/'
#define STRING_PATH_SEPARATOR   "/"
#define WSTRING_PATH_SEPARATOR  L"/"

#endif

EXTERN_C_END

#endif
