280 lines
6.6 KiB
C
280 lines
6.6 KiB
C
/*
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* This file is a part of Pcompress, a chunked parallel multi-
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* algorithm lossless compression and decompression program.
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*
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* Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
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* Use is subject to license terms.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* moinakg@belenix.org, http://moinakg.wordpress.com/
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*
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*/
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/* Types.h -- Basic types
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2010-10-09 : Igor Pavlov : Public domain */
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#ifndef __7Z_TYPES_H
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#define __7Z_TYPES_H
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#include <stddef.h>
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#ifndef EXTERN_C_BEGIN
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#ifdef __cplusplus
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#define EXTERN_C_BEGIN extern "C" {
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#define EXTERN_C_END }
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#else
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#define EXTERN_C_BEGIN
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#define EXTERN_C_END
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#endif
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#endif
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EXTERN_C_BEGIN
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#define SZ_OK 0
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#define SZ_ERROR_DATA 1
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#define SZ_ERROR_MEM 2
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#define SZ_ERROR_CRC 3
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#define SZ_ERROR_UNSUPPORTED 4
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#define SZ_ERROR_PARAM 5
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#define SZ_ERROR_INPUT_EOF 6
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#define SZ_ERROR_OUTPUT_EOF 7
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#define SZ_ERROR_READ 8
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#define SZ_ERROR_WRITE 9
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#define SZ_ERROR_PROGRESS 10
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#define SZ_ERROR_FAIL 11
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#define SZ_ERROR_THREAD 12
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#define SZ_ERROR_ARCHIVE 16
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#define SZ_ERROR_NO_ARCHIVE 17
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typedef int SRes;
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#ifdef _WIN32
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typedef DWORD WRes;
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#else
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typedef int WRes;
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#endif
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#ifndef RINOK
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#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
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#endif
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typedef unsigned char Byte;
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typedef short Int16;
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typedef unsigned short UInt16;
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#ifdef _LZMA_UINT32_IS_ULONG
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typedef long Int32;
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typedef unsigned long UInt32;
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#else
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typedef int Int32;
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typedef unsigned int UInt32;
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#endif
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#ifdef _SZ_NO_INT_64
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/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers.
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NOTES: Some code will work incorrectly in that case! */
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typedef long Int64;
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typedef unsigned long UInt64;
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#else
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#if defined(_MSC_VER) || defined(__BORLANDC__)
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typedef __int64 Int64;
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typedef unsigned __int64 UInt64;
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#define UINT64_CONST(n) n
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#else
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typedef long long int Int64;
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typedef unsigned long long int UInt64;
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#define UINT64_CONST(n) n ## ULL
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#endif
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#endif
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#ifdef _LZMA_NO_SYSTEM_SIZE_T
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typedef UInt32 SizeT;
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#else
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typedef size_t SizeT;
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#endif
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typedef int Bool;
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#define True 1
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#define False 0
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#ifdef _WIN32
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#define MY_STD_CALL __stdcall
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#else
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#define MY_STD_CALL
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#endif
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#ifdef _MSC_VER
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#if _MSC_VER >= 1300
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#define MY_NO_INLINE __declspec(noinline)
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#else
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#define MY_NO_INLINE
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#endif
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#define MY_CDECL __cdecl
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#define MY_FAST_CALL __fastcall
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#else
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#define MY_CDECL
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#define MY_FAST_CALL
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#endif
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/* The following interfaces use first parameter as pointer to structure */
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typedef struct
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{
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Byte (*Read)(void *p); /* reads one byte, returns 0 in case of EOF or error */
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} IByteIn;
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typedef struct
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{
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void (*Write)(void *p, Byte b);
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} IByteOut;
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typedef struct
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{
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SRes (*Read)(void *p, void *buf, size_t *size);
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/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
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(output(*size) < input(*size)) is allowed */
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} ISeqInStream;
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/* it can return SZ_ERROR_INPUT_EOF */
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SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size);
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SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType);
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SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf);
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typedef struct
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{
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size_t (*Write)(void *p, const void *buf, size_t size);
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/* Returns: result - the number of actually written bytes.
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(result < size) means error */
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} ISeqOutStream;
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typedef enum
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{
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SZ_SEEK_SET = 0,
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SZ_SEEK_CUR = 1,
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SZ_SEEK_END = 2
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} ESzSeek;
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typedef struct
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{
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SRes (*Read)(void *p, void *buf, size_t *size); /* same as ISeqInStream::Read */
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SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
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} ISeekInStream;
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typedef struct
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{
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SRes (*Look)(void *p, const void **buf, size_t *size);
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/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
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(output(*size) > input(*size)) is not allowed
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(output(*size) < input(*size)) is allowed */
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SRes (*Skip)(void *p, size_t offset);
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/* offset must be <= output(*size) of Look */
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SRes (*Read)(void *p, void *buf, size_t *size);
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/* reads directly (without buffer). It's same as ISeqInStream::Read */
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SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
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} ILookInStream;
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SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size);
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SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset);
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/* reads via ILookInStream::Read */
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SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType);
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SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size);
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#define LookToRead_BUF_SIZE (1 << 14)
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typedef struct
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{
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ILookInStream s;
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ISeekInStream *realStream;
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size_t pos;
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size_t size;
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Byte buf[LookToRead_BUF_SIZE];
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} CLookToRead;
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void LookToRead_CreateVTable(CLookToRead *p, int lookahead);
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void LookToRead_Init(CLookToRead *p);
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typedef struct
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{
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ISeqInStream s;
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ILookInStream *realStream;
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} CSecToLook;
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void SecToLook_CreateVTable(CSecToLook *p);
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typedef struct
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{
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ISeqInStream s;
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ILookInStream *realStream;
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} CSecToRead;
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void SecToRead_CreateVTable(CSecToRead *p);
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typedef struct
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{
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SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize);
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/* Returns: result. (result != SZ_OK) means break.
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Value (UInt64)(Int64)-1 for size means unknown value. */
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} ICompressProgress;
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typedef struct
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{
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void *(*Alloc)(void *p, size_t size);
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void (*Free)(void *p, void *address); /* address can be 0 */
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void (*FreeSz)(void *p, void *address, size_t size); /* address can be 0 */
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} ISzAlloc;
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#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)
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#define IAlloc_Free(p, a) (p)->Free((p), a)
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#ifdef _WIN32
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#define CHAR_PATH_SEPARATOR '\\'
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#define WCHAR_PATH_SEPARATOR L'\\'
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#define STRING_PATH_SEPARATOR "\\"
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#define WSTRING_PATH_SEPARATOR L"\\"
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#else
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#define CHAR_PATH_SEPARATOR '/'
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#define WCHAR_PATH_SEPARATOR L'/'
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#define STRING_PATH_SEPARATOR "/"
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#define WSTRING_PATH_SEPARATOR L"/"
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#endif
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EXTERN_C_END
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#endif
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