1/* Types.h -- Basic types
22008-11-23 : Igor Pavlov : Public domain */
3
4#ifndef __7Z_TYPES_H
5#define __7Z_TYPES_H
6
7#include <stddef.h>
8
9#ifdef _WIN32
10#include <windows.h>
11#endif
12
13#define SZ_OK 0
14
15#define SZ_ERROR_DATA 1
16#define SZ_ERROR_MEM 2
17#define SZ_ERROR_CRC 3
18#define SZ_ERROR_UNSUPPORTED 4
19#define SZ_ERROR_PARAM 5
20#define SZ_ERROR_INPUT_EOF 6
21#define SZ_ERROR_OUTPUT_EOF 7
22#define SZ_ERROR_READ 8
23#define SZ_ERROR_WRITE 9
24#define SZ_ERROR_PROGRESS 10
25#define SZ_ERROR_FAIL 11
26#define SZ_ERROR_THREAD 12
27
28#define SZ_ERROR_ARCHIVE 16
29#define SZ_ERROR_NO_ARCHIVE 17
30
31typedef int SRes;
32
33#ifdef _WIN32
34typedef DWORD WRes;
35#else
36typedef int WRes;
37#endif
38
39#ifndef RINOK
40#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
41#endif
42
43typedef unsigned char Byte;
44typedef short Int16;
45typedef unsigned short UInt16;
46
47#ifdef _LZMA_UINT32_IS_ULONG
48typedef long Int32;
49typedef unsigned long UInt32;
50#else
51typedef int Int32;
52typedef unsigned int UInt32;
53#endif
54
55#ifdef _SZ_NO_INT_64
56
57/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers.
58   NOTES: Some code will work incorrectly in that case! */
59
60typedef long Int64;
61typedef unsigned long UInt64;
62
63#else
64
65#if defined(_MSC_VER) || defined(__BORLANDC__)
66typedef __int64 Int64;
67typedef unsigned __int64 UInt64;
68#else
69typedef long long int Int64;
70typedef unsigned long long int UInt64;
71#endif
72
73#endif
74
75#ifdef _LZMA_NO_SYSTEM_SIZE_T
76typedef UInt32 SizeT;
77#else
78typedef size_t SizeT;
79#endif
80
81typedef int Bool;
82#define True 1
83#define False 0
84
85
86#ifdef _MSC_VER
87
88#if _MSC_VER >= 1300
89#define MY_NO_INLINE __declspec(noinline)
90#else
91#define MY_NO_INLINE
92#endif
93
94#define MY_CDECL __cdecl
95#define MY_STD_CALL __stdcall
96#define MY_FAST_CALL MY_NO_INLINE __fastcall
97
98#else
99
100#define MY_CDECL
101#define MY_STD_CALL
102#define MY_FAST_CALL
103
104#endif
105
106
107/* The following interfaces use first parameter as pointer to structure */
108
109typedef struct
110{
111  SRes (*Read)(void *p, void *buf, size_t *size);
112    /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
113       (output(*size) < input(*size)) is allowed */
114} ISeqInStream;
115
116/* it can return SZ_ERROR_INPUT_EOF */
117SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size);
118SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType);
119SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf);
120
121typedef struct
122{
123  size_t (*Write)(void *p, const void *buf, size_t size);
124    /* Returns: result - the number of actually written bytes.
125       (result < size) means error */
126} ISeqOutStream;
127
128typedef enum
129{
130  SZ_SEEK_SET = 0,
131  SZ_SEEK_CUR = 1,
132  SZ_SEEK_END = 2
133} ESzSeek;
134
135typedef struct
136{
137  SRes (*Read)(void *p, void *buf, size_t *size);  /* same as ISeqInStream::Read */
138  SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
139} ISeekInStream;
140
141typedef struct
142{
143  SRes (*Look)(void *p, void **buf, size_t *size);
144    /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
145       (output(*size) > input(*size)) is not allowed
146       (output(*size) < input(*size)) is allowed */
147  SRes (*Skip)(void *p, size_t offset);
148    /* offset must be <= output(*size) of Look */
149
150  SRes (*Read)(void *p, void *buf, size_t *size);
151    /* reads directly (without buffer). It's same as ISeqInStream::Read */
152  SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
153} ILookInStream;
154
155SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size);
156SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset);
157
158/* reads via ILookInStream::Read */
159SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType);
160SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size);
161
162#define LookToRead_BUF_SIZE (1 << 14)
163
164typedef struct
165{
166  ILookInStream s;
167  ISeekInStream *realStream;
168  size_t pos;
169  size_t size;
170  Byte buf[LookToRead_BUF_SIZE];
171} CLookToRead;
172
173void LookToRead_CreateVTable(CLookToRead *p, int lookahead);
174void LookToRead_Init(CLookToRead *p);
175
176typedef struct
177{
178  ISeqInStream s;
179  ILookInStream *realStream;
180} CSecToLook;
181
182void SecToLook_CreateVTable(CSecToLook *p);
183
184typedef struct
185{
186  ISeqInStream s;
187  ILookInStream *realStream;
188} CSecToRead;
189
190void SecToRead_CreateVTable(CSecToRead *p);
191
192typedef struct
193{
194  SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize);
195    /* Returns: result. (result != SZ_OK) means break.
196       Value (UInt64)(Int64)-1 for size means unknown value. */
197} ICompressProgress;
198
199typedef struct
200{
201  void *(*Alloc)(void *p, size_t size);
202  void (*Free)(void *p, void *address); /* address can be 0 */
203} ISzAlloc;
204
205#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)
206#define IAlloc_Free(p, a) (p)->Free((p), a)
207
208#endif
209