minizip/lib/liblzma/api/lzma.h at dev · plo-/minizip

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

/**

* \file api/lzma.h

* \brief The public API of liblzma data compression library

* liblzma is a public domain general-purpose data compression library with

* a zlib-like API. The native file format is .xz, but also the old .lzma

* format and raw (no headers) streams are supported. Multiple compression

* algorithms (filters) are supported. Currently LZMA2 is the primary filter.

* liblzma is part of XZ Utils <http://tukaani.org/xz/>. XZ Utils includes

* a gzip-like command line tool named xz and some other tools. XZ Utils

* is developed and maintained by Lasse Collin.

* Major parts of liblzma are based on Igor Pavlov's public domain LZMA SDK

* <http://7-zip.org/sdk.html>.

* The SHA-256 implementation is based on the public domain code found from

* 7-Zip <http://7-zip.org/>, which has a modified version of the public

* domain SHA-256 code found from Crypto++ <http://www.cryptopp.com/>.

* The SHA-256 code in Crypto++ was written by Kevin Springle and Wei Dai.

* Author: Lasse Collin

* This file has been put into the public domain.

* You can do whatever you want with this file.

#ifndef LZMA_H

#define LZMA_H

/*****************************

* Required standard headers *

*****************************/

* liblzma API headers need some standard types and macros. To allow

* including lzma.h without requiring the application to include other

* headers first, lzma.h includes the required standard headers unless

* they already seem to be included already or if LZMA_MANUAL_HEADERS

* has been defined.

* Here's what types and macros are needed and from which headers:

* - stddef.h: size_t, NULL

* - stdint.h: uint8_t, uint32_t, uint64_t, UINT32_C(n), uint64_C(n),

* UINT32_MAX, UINT64_MAX

* However, inttypes.h is a little more portable than stdint.h, although

* inttypes.h declares some unneeded things compared to plain stdint.h.

* The hacks below aren't perfect, specifically they assume that inttypes.h

* exists and that it typedefs at least uint8_t, uint32_t, and uint64_t,

* and that, in case of incomplete inttypes.h, unsigned int is 32-bit.

* If the application already takes care of setting up all the types and

* macros properly (for example by using gnulib's stdint.h or inttypes.h),

* we try to detect that the macros are already defined and don't include

* inttypes.h here again. However, you may define LZMA_MANUAL_HEADERS to

* force this file to never include any system headers.

* Some could argue that liblzma API should provide all the required types,

* for example lzma_uint64, LZMA_UINT64_C(n), and LZMA_UINT64_MAX. This was

* seen as an unnecessary mess, since most systems already provide all the

* necessary types and macros in the standard headers.

* Note that liblzma API still has lzma_bool, because using stdbool.h would

* break C89 and C++ programs on many systems. sizeof(bool) in C99 isn't

* necessarily the same as sizeof(bool) in C++.

#ifndef LZMA_MANUAL_HEADERS

* I suppose this works portably also in C++. Note that in C++,

* we need to get size_t into the global namespace.

# include <stddef.h>

* Skip inttypes.h if we already have all the required macros. If we

* have the macros, we assume that we have the matching typedefs too.

# if !defined(UINT32_C) || !defined(UINT64_C) \

|| !defined(UINT32_MAX) || !defined(UINT64_MAX)

* MSVC versions older than 2013 have no C99 support, and

* thus they cannot be used to compile liblzma. Using an

* existing liblzma.dll with old MSVC can work though(*),

* but we need to define the required standard integer

* types here in a MSVC-specific way.

* (*) If you do this, the existing liblzma.dll probably uses

* a different runtime library than your MSVC-built

* application. Mixing runtimes is generally bad, but

* in this case it should work as long as you avoid

* the few rarely-needed liblzma functions that allocate

* memory and expect the caller to free it using free().

# if defined(_WIN32) && defined(_MSC_VER) && _MSC_VER < 1800

typedef unsigned __int8 uint8_t;

typedef unsigned __int32 uint32_t;

typedef unsigned __int64 uint64_t;

# else

/* Use the standard inttypes.h. */

# ifdef __cplusplus

* C99 sections 7.18.2 and 7.18.4 specify

* that C++ implementations define the limit

* and constant macros only if specifically

* requested. Note that if you want the

* format macros (PRIu64 etc.) too, you need

* to define __STDC_FORMAT_MACROS before

* including lzma.h, since re-including

* inttypes.h with __STDC_FORMAT_MACROS

* defined doesn't necessarily work.

# ifndef __STDC_LIMIT_MACROS

# define __STDC_LIMIT_MACROS 1

# endif

# ifndef __STDC_CONSTANT_MACROS

# define __STDC_CONSTANT_MACROS 1

# endif

# include <inttypes.h>

# endif

* Some old systems have only the typedefs in inttypes.h, and

* lack all the macros. For those systems, we need a few more

* hacks. We assume that unsigned int is 32-bit and unsigned

* long is either 32-bit or 64-bit. If these hacks aren't

* enough, the application has to setup the types manually

* before including lzma.h.

# ifndef UINT32_C

# if defined(_WIN32) && defined(_MSC_VER)

# define UINT32_C(n) n ## UI32

# else

# define UINT32_C(n) n ## U

# endif

# ifndef UINT64_C

# if defined(_WIN32) && defined(_MSC_VER)

# define UINT64_C(n) n ## UI64

# else

/* Get ULONG_MAX. */

# include <limits.h>

# if ULONG_MAX == 4294967295UL

# define UINT64_C(n) n ## ULL

# else

# define UINT64_C(n) n ## UL

# endif

# ifndef UINT32_MAX

# define UINT32_MAX (UINT32_C(4294967295))

# endif

# ifndef UINT64_MAX

# define UINT64_MAX (UINT64_C(18446744073709551615))

# endif

#endif /* ifdef LZMA_MANUAL_HEADERS */

/******************

* LZMA_API macro *

******************/

* Some systems require that the functions and function pointers are

* declared specially in the headers. LZMA_API_IMPORT is for importing

* symbols and LZMA_API_CALL is to specify the calling convention.

* By default it is assumed that the application will link dynamically

* against liblzma. #define LZMA_API_STATIC in your application if you

* want to link against static liblzma. If you don't care about portability

* to operating systems like Windows, or at least don't care about linking

* against static liblzma on them, don't worry about LZMA_API_STATIC. That

* is, most developers will never need to use LZMA_API_STATIC.

* The GCC variants are a special case on Windows (Cygwin and MinGW).

* We rely on GCC doing the right thing with its auto-import feature,

* and thus don't use __declspec(dllimport). This way developers don't

* need to worry about LZMA_API_STATIC. Also the calling convention is

* omitted on Cygwin but not on MinGW.

#ifndef LZMA_API_IMPORT

# if !defined(LZMA_API_STATIC) && defined(_WIN32) && !defined(__GNUC__)

# define LZMA_API_IMPORT __declspec(dllimport)

# else

# define LZMA_API_IMPORT

# endif

#endif

#ifndef LZMA_API_CALL

# if defined(_WIN32) && !defined(__CYGWIN__)

# define LZMA_API_CALL __cdecl

# else

# define LZMA_API_CALL

# endif

#endif

#ifndef LZMA_API

# define LZMA_API(type) LZMA_API_IMPORT type LZMA_API_CALL

#endif

/***********

* nothrow *

***********/

* None of the functions in liblzma may throw an exception. Even

* the functions that use callback functions won 8000 9;t throw exceptions,

* because liblzma would break if a callback function threw an exception.

#ifndef lzma_nothrow

# if defined(__cplusplus)

# if __cplusplus >= 201103L

# define lzma_nothrow noexcept

# else

# define lzma_nothrow throw()

# endif

# elif __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)

# define lzma_nothrow __attribute__((__nothrow__))

# else

# define lzma_nothrow

# endif

#endif

/********************

* GNU C extensions *

********************/

* GNU C extensions are used conditionally in the public API. It doesn't

* break anything if these are sometimes enabled and sometimes not, only

* affects warnings and optimizations.

#if __GNUC__ >= 3

# ifndef lzma_attribute

# define lzma_attribute(attr) __attribute__(attr)

# endif

/* warn_unused_result was added in GCC 3.4. */

# ifndef lzma_attr_warn_unused_result

# if __GNUC__ == 3 && __GNUC_MINOR__ < 4

# define lzma_attr_warn_unused_result

# endif

#else

# ifndef lzma_attribute

# define lzma_attribute(attr)

# endif

#endif

#ifndef lzma_attr_pure

# define lzma_attr_pure lzma_attribute((__pure__))

#endif

#ifndef lzma_attr_const

# define lzma_attr_const lzma_attribute((__const__))

#endif

#ifndef lzma_attr_warn_unused_result

# define lzma_attr_warn_unused_result \

lzma_attribute((__warn_unused_result__))

#endif

/**************

* Subheaders *

**************/

#ifdef __cplusplus

extern "C" {

#endif

* Subheaders check that this is defined. It is to prevent including

* them directly from applications.

#define LZMA_H_INTERNAL 1

/* Basic features */

#include "lzma/version.h"

#include "lzma/base.h"

#include "lzma/vli.h"

#include "lzma/check.h"

/* Filters */

#include "lzma/filter.h"

//#include "lzma/bcj.h"

//#include "lzma/delta.h"

#include "lzma/lzma12.h"

/* Container formats */

#include "lzma/container.h"

/* Advanced features */

//#include "lzma/stream_flags.h"

//#include "lzma/block.h"

//#include "lzma/index.h"

//#include "lzma/index_hash.h"

/* Hardware information */

//#include "lzma/hardware.h"

* All subheaders included. Undefine LZMA_H_INTERNAL to prevent applications

* re-including the subheaders.

#undef LZMA_H_INTERNAL

#ifdef __cplusplus

}

#endif

#endif /* ifndef LZMA_H */

FilesExpand file tree

lzma.h

Latest commit

History

lzma.h

File metadata and controls