/* 7zTypes.h -- Basic types
2021-12-25 : Igor Pavlov : Public domain */

#ifndef __7Z_TYPES_H
#define __7Z_TYPES_H

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

#include <stddef.h>

#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 _MSC_VER
  #if _MSC_VER > 1200
    #define MY_ALIGN(n) __declspec(align(n))
  #else
    #define MY_ALIGN(n)
  #endif
#else
  #define MY_ALIGN(n) __attribute__ ((aligned(n)))
#endif


#ifdef _WIN32

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

// #define MY_HRES_ERROR__INTERNAL_ERROR  MY_SRes_HRESULT_FROM_WRes(ERROR_INTERNAL_ERROR)

#else // _WIN32

// #define ENV_HAVE_LSTAT
typedef int WRes;

// (FACILITY_ERRNO = 0x800) is 7zip's FACILITY constant to represent (errno) errors in HRESULT
#define MY__FACILITY_ERRNO  0x800
#define MY__FACILITY_WIN32  7
#define MY__FACILITY__WRes  MY__FACILITY_ERRNO

#define MY_HRESULT_FROM_errno_CONST_ERROR(x) ((HRESULT)( \
          ( (HRESULT)(x) & 0x0000FFFF) \
          | (MY__FACILITY__WRes << 16)  \
          | (HRESULT)0x80000000 ))

#define MY_SRes_HRESULT_FROM_WRes(x) \
  ((HRESULT)(x) <= 0 ? ((HRESULT)(x)) : MY_HRESULT_FROM_errno_CONST_ERROR(x))

// we call macro HRESULT_FROM_WIN32 for system errors (WRes) that are (errno)
#define HRESULT_FROM_WIN32(x) MY_SRes_HRESULT_FROM_WRes(x)

/*
#define ERROR_FILE_NOT_FOUND             2L
#define ERROR_ACCESS_DENIED              5L
#define ERROR_NO_MORE_FILES              18L
#define ERROR_LOCK_VIOLATION             33L
#define ERROR_FILE_EXISTS                80L
#define ERROR_DISK_FULL                  112L
#define ERROR_NEGATIVE_SEEK              131L
#define ERROR_ALREADY_EXISTS             183L
#define ERROR_DIRECTORY                  267L
#define ERROR_TOO_MANY_POSTS             298L

#define ERROR_INTERNAL_ERROR             1359L
#define ERROR_INVALID_REPARSE_DATA       4392L
#define ERROR_REPARSE_TAG_INVALID        4393L
#define ERROR_REPARSE_TAG_MISMATCH       4394L
*/

// we use errno equivalents for some WIN32 errors:

#define ERROR_INVALID_PARAMETER     EINVAL
#define ERROR_INVALID_FUNCTION      EINVAL
#define ERROR_ALREADY_EXISTS        EEXIST
#define ERROR_FILE_EXISTS           EEXIST
#define ERROR_PATH_NOT_FOUND        ENOENT
#define ERROR_FILE_NOT_FOUND        ENOENT
#define ERROR_DISK_FULL             ENOSPC
// #define ERROR_INVALID_HANDLE        EBADF

// we use FACILITY_WIN32 for errors that has no errno equivalent
// Too many posts were made to a semaphore.
#define ERROR_TOO_MANY_POSTS        ((HRESULT)0x8007012AL)
#define ERROR_INVALID_REPARSE_DATA  ((HRESULT)0x80071128L)
#define ERROR_REPARSE_TAG_INVALID   ((HRESULT)0x80071129L)

// if (MY__FACILITY__WRes != FACILITY_WIN32),
// we use FACILITY_WIN32 for COM errors:
#define E_OUTOFMEMORY               ((HRESULT)0x8007000EL)
#define E_INVALIDARG                ((HRESULT)0x80070057L)
#define MY__E_ERROR_NEGATIVE_SEEK   ((HRESULT)0x80070083L)

/*
// we can use FACILITY_ERRNO for some COM errors, that have errno equivalents:
#define E_OUTOFMEMORY             MY_HRESULT_FROM_errno_CONST_ERROR(ENOMEM)
#define E_INVALIDARG              MY_HRESULT_FROM_errno_CONST_ERROR(EINVAL)
#define MY__E_ERROR_NEGATIVE_SEEK MY_HRESULT_FROM_errno_CONST_ERROR(EINVAL)
*/

// gcc / clang : (sizeof(long) == sizeof(void*)) in 32/64 bits
typedef          long INT_PTR;
typedef unsigned long UINT_PTR;

#define TEXT(quote) quote

#define FILE_ATTRIBUTE_READONLY       0x0001
#define FILE_ATTRIBUTE_HIDDEN         0x0002
#define FILE_ATTRIBUTE_SYSTEM         0x0004
#define FILE_ATTRIBUTE_DIRECTORY      0x0010
#define FILE_ATTRIBUTE_ARCHIVE        0x0020
#define FILE_ATTRIBUTE_DEVICE         0x0040
#define FILE_ATTRIBUTE_NORMAL         0x0080
#define FILE_ATTRIBUTE_TEMPORARY      0x0100
#define FILE_ATTRIBUTE_SPARSE_FILE    0x0200
#define FILE_ATTRIBUTE_REPARSE_POINT  0x0400
#define FILE_ATTRIBUTE_COMPRESSED     0x0800
#define FILE_ATTRIBUTE_OFFLINE        0x1000
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x2000
#define FILE_ATTRIBUTE_ENCRYPTED      0x4000

#define FILE_ATTRIBUTE_UNIX_EXTENSION 0x8000   /* trick for Unix */

#endif


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

#ifndef RINOK_WRes
#define RINOK_WRes(x) { WRes __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


#ifndef _WIN32

typedef int INT;
typedef Int32 INT32;
typedef unsigned int UINT;
typedef UInt32 UINT32;
typedef INT32 LONG;   // LONG, ULONG and DWORD must be 32-bit for _WIN32 compatibility
typedef UINT32 ULONG;

#undef DWORD
typedef UINT32 DWORD;

#define VOID void

#define HRESULT LONG

typedef void *LPVOID;
// typedef void VOID;
// typedef ULONG_PTR DWORD_PTR, *PDWORD_PTR;
// gcc / clang on Unix  : sizeof(long==sizeof(void*) in 32 or 64 bits)
typedef          long  INT_PTR;
typedef unsigned long  UINT_PTR;
typedef          long  LONG_PTR;
typedef unsigned long  DWORD_PTR;

typedef size_t SIZE_T;

#endif //  _WIN32


#define MY_HRES_ERROR__INTERNAL_ERROR  ((HRESULT)0x8007054FL)


#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

#ifdef _MSC_VER

#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 //  _MSC_VER

#if (defined(__GNUC__) && (__GNUC__ >= 4)) \
    || (defined(__clang__) && (__clang_major__ >= 4)) \
    || defined(__INTEL_COMPILER) \
    || defined(__xlC__)
#define MY_NO_INLINE __attribute__((noinline))
// #define MY_FORCE_INLINE __attribute__((always_inline)) inline
#else
#define MY_NO_INLINE
#endif

#define MY_FORCE_INLINE


#define MY_CDECL

#if  defined(_M_IX86) \
  || defined(__i386__)
// #define MY_FAST_CALL __attribute__((fastcall))
// #define MY_FAST_CALL __attribute__((cdecl))
#define MY_FAST_CALL
#elif defined(MY_CPU_AMD64)
// #define MY_FAST_CALL __attribute__((ms_abi))
#define MY_FAST_CALL
#else
#define MY_FAST_CALL
#endif

#endif //  _MSC_VER


/* 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 *)(void *)((char *)(void *)(1 ? (ptr) : &((type *)0)->m) - MY_offsetof(type, m)))

#endif

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


#define MY_memset_0_ARRAY(a) memset((a), 0, sizeof(a))

#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