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cpl_vsi.h
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1 /******************************************************************************
2 * $Id: cpl_vsi.h 33758 2016-03-21 09:06:22Z rouault $
3 *
4 * Project: CPL - Common Portability Library
5 * Author: Frank Warmerdam, warmerdam@pobox.com
6 * Purpose: Include file defining Virtual File System (VSI) functions, a
7 * layer over POSIX file and other system services.
8 *
9 ******************************************************************************
10 * Copyright (c) 1998, Frank Warmerdam
11 * Copyright (c) 2008-2014, Even Rouault <even dot rouault at mines-paris dot org>
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining a
14 * copy of this software and associated documentation files (the "Software"),
15 * to deal in the Software without restriction, including without limitation
16 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17 * and/or sell copies of the Software, and to permit persons to whom the
18 * Software is furnished to do so, subject to the following conditions:
19 *
20 * The above copyright notice and this permission notice shall be included
21 * in all copies or substantial portions of the Software.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
24 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
27 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
28 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
29 * DEALINGS IN THE SOFTWARE.
30 ****************************************************************************/
31
32 #ifndef CPL_VSI_H_INCLUDED
33 #define CPL_VSI_H_INCLUDED
34
35 #include "cpl_port.h"
54 /* -------------------------------------------------------------------- */
55 /* We need access to ``struct stat''. */
56 /* -------------------------------------------------------------------- */
57
58 /* Unix */
59 #if !defined(_WIN32)
60 # include <unistd.h>
61 #endif
62
63 /* Windows */
64 #include <sys/stat.h>
65
66 CPL_C_START
67
68 #ifdef ENABLE_EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
69 #define EXPERIMENTAL_CPL_WARN_UNUSED_RESULT CPL_WARN_UNUSED_RESULT
70 #else
71 #define EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
72 #endif
73
74 /* ==================================================================== */
75 /* stdio file access functions. These may not support large */
76 /* files, and don't necessarily go through the virtualization */
77 /* API. */
78 /* ==================================================================== */
79
80 FILE CPL_DLL * VSIFOpen( const char *, const char * ) CPL_WARN_UNUSED_RESULT;
81 int CPL_DLL VSIFClose( FILE * );
82 int CPL_DLL VSIFSeek( FILE *, long, int ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
83 long CPL_DLL VSIFTell( FILE * ) CPL_WARN_UNUSED_RESULT;
84 void CPL_DLL VSIRewind( FILE * );
85 void CPL_DLL VSIFFlush( FILE * );
86
87 size_t CPL_DLL VSIFRead( void *, size_t, size_t, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
88 size_t CPL_DLL VSIFWrite( const void *, size_t, size_t, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
89 char CPL_DLL *VSIFGets( char *, int, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
90 int CPL_DLL VSIFPuts( const char *, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
91 int CPL_DLL VSIFPrintf( FILE *, const char *, ... ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT CPL_PRINT_FUNC_FORMAT(2, 3);
92
93 int CPL_DLL VSIFGetc( FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
94 int CPL_DLL VSIFPutc( int, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
95 int CPL_DLL VSIUngetc( int, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
96 int CPL_DLL VSIFEof( FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
97
98 /* ==================================================================== */
99 /* VSIStat() related. */
100 /* ==================================================================== */
101
102 typedef struct stat VSIStatBuf;
103 int CPL_DLL VSIStat( const char *, VSIStatBuf * ) CPL_WARN_UNUSED_RESULT;
104
105 #ifdef _WIN32
106 # define VSI_ISLNK(x) ( 0 ) /* N/A on Windows */
107 # define VSI_ISREG(x) ((x) & S_IFREG)
108 # define VSI_ISDIR(x) ((x) & S_IFDIR)
109 # define VSI_ISCHR(x) ((x) & S_IFCHR)
110 # define VSI_ISBLK(x) ( 0 ) /* N/A on Windows */
111 #else
112 # define VSI_ISLNK(x) S_ISLNK(x)
113 # define VSI_ISREG(x) S_ISREG(x)
114 # define VSI_ISDIR(x) S_ISDIR(x)
115 # define VSI_ISCHR(x) S_ISCHR(x)
116 # define VSI_ISBLK(x) S_ISBLK(x)
117 #endif
118
119 /* ==================================================================== */
120 /* 64bit stdio file access functions. If we have a big size */
121 /* defined, then provide prototypes for the large file API, */
122 /* otherwise redefine to use the regular api. */
123 /* ==================================================================== */
124 typedef GUIntBig vsi_l_offset;
125 #define VSI_L_OFFSET_MAX GUINTBIG_MAX
126
127 /* Make VSIL_STRICT_ENFORCE active in DEBUG builds */
128 #ifdef DEBUG
129 #define VSIL_STRICT_ENFORCE
130 #endif
131
132 #ifdef VSIL_STRICT_ENFORCE
133 typedef struct _VSILFILE VSILFILE;
134 #else
135 typedef FILE VSILFILE;
136 #endif
137
138 VSILFILE CPL_DLL * VSIFOpenL( const char *, const char * ) CPL_WARN_UNUSED_RESULT;
139 VSILFILE CPL_DLL * VSIFOpenExL( const char *, const char *, int ) CPL_WARN_UNUSED_RESULT;
140 int CPL_DLL VSIFCloseL( VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
141 int CPL_DLL VSIFSeekL( VSILFILE *, vsi_l_offset, int ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
142 vsi_l_offset CPL_DLL VSIFTellL( VSILFILE * ) CPL_WARN_UNUSED_RESULT;
143 void CPL_DLL VSIRewindL( VSILFILE * );
144 size_t CPL_DLL VSIFReadL( void *, size_t, size_t, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
145 int CPL_DLL VSIFReadMultiRangeL( int nRanges, void ** ppData, const vsi_l_offset* panOffsets, const size_t* panSizes, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
146 size_t CPL_DLL VSIFWriteL( const void *, size_t, size_t, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
147 int CPL_DLL VSIFEofL( VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
148 int CPL_DLL VSIFTruncateL( VSILFILE *, vsi_l_offset ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
149 int CPL_DLL VSIFFlushL( VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
150 int CPL_DLL VSIFPrintfL( VSILFILE *, const char *, ... ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT CPL_PRINT_FUNC_FORMAT(2, 3);
151 int CPL_DLL VSIFPutcL( int, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
152
153 int CPL_DLL VSIIngestFile( VSILFILE* fp,
154 const char* pszFilename,
155 GByte** ppabyRet,
156 vsi_l_offset* pnSize,
157 GIntBig nMaxSize ) CPL_WARN_UNUSED_RESULT;
158
159 #if defined(VSI_STAT64_T)
160 typedef struct VSI_STAT64_T VSIStatBufL;
161 #else
162 #define VSIStatBufL VSIStatBuf
163 #endif
164
165 int CPL_DLL VSIStatL( const char *, VSIStatBufL * ) CPL_WARN_UNUSED_RESULT;
166
167 #define VSI_STAT_EXISTS_FLAG 0x1
168 #define VSI_STAT_NATURE_FLAG 0x2
169 #define VSI_STAT_SIZE_FLAG 0x4
170 #define VSI_STAT_SET_ERROR_FLAG 0x8
171
172 int CPL_DLL VSIStatExL( const char * pszFilename, VSIStatBufL * psStatBuf, int nFlags ) CPL_WARN_UNUSED_RESULT;
173
174 int CPL_DLL VSIIsCaseSensitiveFS( const char * pszFilename );
175
176 void CPL_DLL *VSIFGetNativeFileDescriptorL( VSILFILE* );
177
178 /* ==================================================================== */
179 /* Memory allocation */
180 /* ==================================================================== */
181
182 void CPL_DLL *VSICalloc( size_t, size_t ) CPL_WARN_UNUSED_RESULT;
183 void CPL_DLL *VSIMalloc( size_t ) CPL_WARN_UNUSED_RESULT;
184 void CPL_DLL VSIFree( void * );
185 void CPL_DLL *VSIRealloc( void *, size_t ) CPL_WARN_UNUSED_RESULT;
186 char CPL_DLL *VSIStrdup( const char * ) CPL_WARN_UNUSED_RESULT;
187
195 void CPL_DLL *VSIMalloc2( size_t nSize1, size_t nSize2 ) CPL_WARN_UNUSED_RESULT;
196
204 void CPL_DLL *VSIMalloc3( size_t nSize1, size_t nSize2, size_t nSize3 ) CPL_WARN_UNUSED_RESULT;
205
206
207 void CPL_DLL *VSIMallocVerbose( size_t nSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
208 #define VSI_MALLOC_VERBOSE( size ) VSIMallocVerbose(size,__FILE__,__LINE__)
209
210 void CPL_DLL *VSIMalloc2Verbose( size_t nSize1, size_t nSize2, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
211 #define VSI_MALLOC2_VERBOSE( nSize1, nSize2 ) VSIMalloc2Verbose(nSize1,nSize2,__FILE__,__LINE__)
212
213 void CPL_DLL *VSIMalloc3Verbose( size_t nSize1, size_t nSize2, size_t nSize3, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
214 #define VSI_MALLOC3_VERBOSE( nSize1, nSize2, nSize3 ) VSIMalloc3Verbose(nSize1,nSize2,nSize3,__FILE__,__LINE__)
215
216 void CPL_DLL *VSICallocVerbose( size_t nCount, size_t nSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
217 #define VSI_CALLOC_VERBOSE( nCount, nSize ) VSICallocVerbose(nCount,nSize,__FILE__,__LINE__)
218
219 void CPL_DLL *VSIReallocVerbose( void* pOldPtr, size_t nNewSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
220 #define VSI_REALLOC_VERBOSE( pOldPtr, nNewSize ) VSIReallocVerbose(pOldPtr,nNewSize,__FILE__,__LINE__)
221
222 char CPL_DLL *VSIStrdupVerbose( const char* pszStr, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
223 #define VSI_STRDUP_VERBOSE( pszStr ) VSIStrdupVerbose(pszStr,__FILE__,__LINE__)
224
225
226 GIntBig CPL_DLL CPLGetPhysicalRAM(void);
227 GIntBig CPL_DLL CPLGetUsablePhysicalRAM(void);
228
229 /* ==================================================================== */
230 /* Other... */
231 /* ==================================================================== */
232
233 #define CPLReadDir VSIReadDir
234 char CPL_DLL **VSIReadDir( const char * );
235 char CPL_DLL **VSIReadDirRecursive( const char *pszPath );
236 char CPL_DLL **VSIReadDirEx( const char *pszPath, int nMaxFiles );
237 int CPL_DLL VSIMkdir( const char * pathname, long mode );
238 int CPL_DLL VSIRmdir( const char * pathname );
239 int CPL_DLL VSIUnlink( const char * pathname );
240 int CPL_DLL VSIRename( const char * oldpath, const char * newpath );
241 char CPL_DLL *VSIStrerror( int );
242 GIntBig CPL_DLL VSIGetDiskFreeSpace(const char *pszDirname);
243
244 /* ==================================================================== */
245 /* Install special file access handlers. */
246 /* ==================================================================== */
247 void CPL_DLL VSIInstallMemFileHandler(void);
248 void CPL_DLL VSIInstallLargeFileHandler(void);
249 void CPL_DLL VSIInstallSubFileHandler(void);
250 void VSIInstallCurlFileHandler(void);
251 void VSIInstallCurlStreamingFileHandler(void);
252 void VSIInstallS3FileHandler(void);
253 void VSIInstallS3StreamingFileHandler(void);
254 void VSIInstallGZipFileHandler(void); /* No reason to export that */
255 void VSIInstallZipFileHandler(void); /* No reason to export that */
256 void VSIInstallStdinHandler(void); /* No reason to export that */
257 void VSIInstallStdoutHandler(void); /* No reason to export that */
258 void CPL_DLL VSIInstallSparseFileHandler(void);
259 void VSIInstallTarFileHandler(void); /* No reason to export that */
260 void CPL_DLL VSIInstallCryptFileHandler(void);
261 void CPL_DLL VSISetCryptKey(const GByte* pabyKey, int nKeySize);
262 void CPL_DLL VSICleanupFileManager(void);
263
264 VSILFILE CPL_DLL *VSIFileFromMemBuffer( const char *pszFilename,
265 GByte *pabyData,
266 vsi_l_offset nDataLength,
267 int bTakeOwnership ) CPL_WARN_UNUSED_RESULT;
268 GByte CPL_DLL *VSIGetMemFileBuffer( const char *pszFilename,
269 vsi_l_offset *pnDataLength,
270 int bUnlinkAndSeize );
271
272 typedef size_t (*VSIWriteFunction)(const void* ptr, size_t size, size_t nmemb, FILE* stream);
273 void CPL_DLL VSIStdoutSetRedirection( VSIWriteFunction pFct, FILE* stream );
274
275 /* ==================================================================== */
276 /* Time querying. */
277 /* ==================================================================== */
278
279 unsigned long CPL_DLL VSITime( unsigned long * );
280 const char CPL_DLL *VSICTime( unsigned long );
281 struct tm CPL_DLL *VSIGMTime( const time_t *pnTime,
282 struct tm *poBrokenTime );
283 struct tm CPL_DLL *VSILocalTime( const time_t *pnTime,
284 struct tm *poBrokenTime );
285
286 /* -------------------------------------------------------------------- */
287 /* the following can be turned on for detailed logging of */
288 /* almost all IO calls. */
289 /* -------------------------------------------------------------------- */
290 #ifdef VSI_DEBUG
291
292 #ifndef DEBUG
293 # define DEBUG
294 #endif
295
296 #include "cpl_error.h"
297
298 #define VSIDebug4(f,a1,a2,a3,a4) CPLDebug( "VSI", f, a1, a2, a3, a4 );
299 #define VSIDebug3( f, a1, a2, a3 ) CPLDebug( "VSI", f, a1, a2, a3 );
300 #define VSIDebug2( f, a1, a2 ) CPLDebug( "VSI", f, a1, a2 );
301 #define VSIDebug1( f, a1 ) CPLDebug( "VSI", f, a1 );
302 #else
303 #define VSIDebug4( f, a1, a2, a3, a4 ) {}
304 #define VSIDebug3( f, a1, a2, a3 ) {}
305 #define VSIDebug2( f, a1, a2 ) {}
306 #define VSIDebug1( f, a1 ) {}
307 #endif
308
309 CPL_C_END
310
311 #endif /* ndef CPL_VSI_H_INCLUDED */
VSIMkdir
int VSIMkdir(const char *pathname, long mode)
Create a directory.
Definition: cpl_vsil.cpp:303
CPLGetPhysicalRAM
GIntBig CPLGetPhysicalRAM(void)
Return the total physical RAM in bytes.
Definition: cpl_vsisimple.cpp:1118
VSIReadDir
char ** VSIReadDir(const char *)
Read names in a directory.
Definition: cpl_vsil.cpp:65
VSIRename
int VSIRename(const char *oldpath, const char *newpath)
Rename a file.
Definition: cpl_vsil.cpp:362
VSIRewindL
void VSIRewindL(VSILFILE *)
Rewind the file pointer to the beginning of the file.
Definition: cpl_vsil.cpp:714
VSIStatExL
int VSIStatExL(const char *pszFilename, VSIStatBufL *psStatBuf, int nFlags) CPL_WARN_UNUSED_RESULT
Get filesystem object info.
Definition: cpl_vsil.cpp:461
VSIFGetNativeFileDescriptorL
void * VSIFGetNativeFileDescriptorL(VSILFILE *)
Returns the "native" file descriptor for the virtual handle.
Definition: cpl_vsil.cpp:1173
cpl_port.h
Core portability definitions for CPL.
VSIFTellL
vsi_l_offset VSIFTellL(VSILFILE *) CPL_WARN_UNUSED_RESULT
Tell current file offset.
Definition: cpl_vsil.cpp:692
VSIFEofL
int VSIFEofL(VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Test for end of file.
Definition: cpl_vsil.cpp:870
VSIIngestFile
int VSIIngestFile(VSILFILE *fp, const char *pszFilename, GByte **ppabyRet, vsi_l_offset *pnSize, GIntBig nMaxSize) CPL_WARN_UNUSED_RESULT
Ingest a file into memory.
Definition: cpl_vsil.cpp:995
VSIInstallS3FileHandler
void VSIInstallS3FileHandler(void)
Install /vsis3/ Amazon S3 file system handler (requires libcurl)
Definition: cpl_vsil_curl.cpp:4308
VSIFPutcL
int VSIFPutcL(int, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Write a single byte to the file.
Definition: cpl_vsil.cpp:959
VSIReadDirEx
char ** VSIReadDirEx(const char *pszPath, int nMaxFiles)
Read names in a directory.
Definition: cpl_vsil.cpp:99
VSIFReadL
size_t VSIFReadL(void *, size_t, size_t, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Read bytes from file.
Definition: cpl_vsil.cpp:772
VSIStdoutSetRedirection
void VSIStdoutSetRedirection(VSIWriteFunction pFct, FILE *stream)
Set an alternative write function and output file handle instead of fwrite() / stdout.
Definition: cpl_vsil_stdout.cpp:57
CPLGetUsablePhysicalRAM
GIntBig CPLGetUsablePhysicalRAM(void)
Return the total physical RAM, usable by a process, in bytes.
Definition: cpl_vsisimple.cpp:1185
VSIMalloc3
void * VSIMalloc3(size_t nSize1, size_t nSize2, size_t nSize3) CPL_WARN_UNUSED_RESULT
VSIMalloc3 allocates (nSize1 * nSize2 * nSize3) bytes.
Definition: cpl_vsisimple.cpp:890
VSIFTruncateL
int VSIFTruncateL(VSILFILE *, vsi_l_offset) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Truncate/expand the file to the specified size.
Definition: cpl_vsil.cpp:897
VSIInstallStdoutHandler
void VSIInstallStdoutHandler(void)
Install /vsistdout/ file system handler.
Definition: cpl_vsil_stdout.cpp:422
VSIInstallSubFileHandler
void VSIInstallSubFileHandler(void)
Install /vsisubfile/ virtual file handler.
Definition: cpl_vsil_subfile.cpp:461
VSIInstallCurlStreamingFileHandler
void VSIInstallCurlStreamingFileHandler(void)
Install /vsicurl_streaming/ HTTP/FTP file system handler (requires libcurl)
Definition: cpl_vsil_curl_streaming.cpp:1582
VSIFOpenL
VSILFILE * VSIFOpenL(const char *, const char *) CPL_WARN_UNUSED_RESULT
Open file.
Definition: cpl_vsil.cpp:546
VSIInstallStdinHandler
void VSIInstallStdinHandler(void)
Install /vsistdin/ file system handler.
Definition: cpl_vsil_stdin.cpp:397
VSIInstallTarFileHandler
void VSIInstallTarFileHandler(void)
Install /vsitar/ file system handler.
Definition: cpl_vsil_tar.cpp:495
VSIInstallZipFileHandler
void VSIInstallZipFileHandler(void)
Install ZIP file system handler.
Definition: cpl_vsil_gzip.cpp:2415
VSIIsCaseSensitiveFS
int VSIIsCaseSensitiveFS(const char *pszFilename)
Returns if the filenames of the filesystem are case sensitive.
Definition: cpl_vsil.cpp:508
VSIFCloseL
int VSIFCloseL(VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Close file.
Definition: cpl_vsil.cpp:629
VSIFWriteL
size_t VSIFWriteL(const void *, size_t, size_t, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Write bytes to file.
Definition: cpl_vsil.cpp:841
VSIMalloc2
void * VSIMalloc2(size_t nSize1, size_t nSize2) CPL_WARN_UNUSED_RESULT
VSIMalloc2 allocates (nSize1 * nSize2) bytes.
Definition: cpl_vsisimple.cpp:878
VSIGetDiskFreeSpace
GIntBig VSIGetDiskFreeSpace(const char *pszDirname)
Return free disk space available on the filesystem.
Definition: cpl_vsil.cpp:1194
cpl_error.h
CPL error handling services.
VSIInstallSparseFileHandler
void VSIInstallSparseFileHandler(void)
Install /vsisparse/ virtual file handler.
Definition: cpl_vsil_sparsefile.cpp:566
VSIInstallGZipFileHandler
void VSIInstallGZipFileHandler(void)
Install GZip file system handler.
Definition: cpl_vsil_gzip.cpp:1612
VSIStatL
int VSIStatL(const char *, VSIStatBufL *) CPL_WARN_UNUSED_RESULT
Get filesystem object info.
Definition: cpl_vsil.cpp:424
VSIFileFromMemBuffer
VSILFILE * VSIFileFromMemBuffer(const char *pszFilename, GByte *pabyData, vsi_l_offset nDataLength, int bTakeOwnership) CPL_WARN_UNUSED_RESULT
Create memory "file" from a buffer.
Definition: cpl_vsi_mem.cpp:863
VSIFFlushL
int VSIFFlushL(VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Flush pending writes to disk.
Definition: cpl_vsil.cpp:740
VSIInstallCryptFileHandler
void VSIInstallCryptFileHandler(void)
Install /vsicrypt/ encrypted file system handler (requires libcrypto++)
Definition: cpl_vsil_crypt.cpp:1842
VSIFSeekL
int VSIFSeekL(VSILFILE *, vsi_l_offset, int) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Seek to requested offset.
Definition: cpl_vsil.cpp:664
VSIRmdir
int VSIRmdir(const char *pathname)
Delete a directory.
Definition: cpl_vsil.cpp:391
VSIInstallCurlFileHandler
void VSIInstallCurlFileHandler(void)
Install /vsicurl/ HTTP/FTP file system handler (requires libcurl)
Definition: cpl_vsil_curl.cpp:3234
VSIUnlink
int VSIUnlink(const char *pathname)
Delete a file.
Definition: cpl_vsil.cpp:331
VSIFReadMultiRangeL
int VSIFReadMultiRangeL(int nRanges, void **ppData, const vsi_l_offset *panOffsets, const size_t *panSizes, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Read several ranges of bytes from file.
Definition: cpl_vsil.cpp:808
VSIFPrintfL
int VSIFPrintfL(VSILFILE *, const char *,...) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Formatted write to file.
Definition: cpl_vsil.cpp:923
VSIInstallMemFileHandler
void VSIInstallMemFileHandler(void)
Install "memory" file system handler.
Definition: cpl_vsi_mem.cpp:833
VSIGetMemFileBuffer
GByte * VSIGetMemFileBuffer(const char *pszFilename, vsi_l_offset *pnDataLength, int bUnlinkAndSeize)
Fetch buffer underlying memory file.
Definition: cpl_vsi_mem.cpp:919
VSIFOpenExL
VSILFILE * VSIFOpenExL(const char *, const char *, int) CPL_WARN_UNUSED_RESULT
Open file.
Definition: cpl_vsil.cpp:595
VSISetCryptKey
void VSISetCryptKey(const GByte *pabyKey, int nKeySize)
Installs the encryption/decryption key.
Definition: cpl_vsil_crypt.cpp:185
VSIReadDirRecursive
char ** VSIReadDirRecursive(const char *pszPath)
Read names in a directory recursively.
Definition: cpl_vsil.cpp:142
VSIInstallS3StreamingFileHandler
void VSIInstallS3StreamingFileHandler(void)
Install /vsis3_streaming/ Amazon S3 file system handler (requires libcurl)
Definition: cpl_vsil_curl_streaming.cpp:1755

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