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cpl_vsi.h
Go to the documentation of this file.
1 /******************************************************************************
2 * $Id$
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 spatialys.com>
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"
36 #include "cpl_progress.h"
37
56 /* -------------------------------------------------------------------- */
57 /* We need access to ``struct stat''. */
58 /* -------------------------------------------------------------------- */
59
60 /* Unix */
61 #if !defined(_WIN32)
62 # include <unistd.h>
63 #endif
64
65 /* Windows */
66 #include <sys/stat.h>
67
68 CPL_C_START
69
71 #ifdef ENABLE_EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
72 #define EXPERIMENTAL_CPL_WARN_UNUSED_RESULT CPL_WARN_UNUSED_RESULT
73 #else
74 #define EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
75 #endif
76
78 /* ==================================================================== */
79 /* stdio file access functions. These do not support large */
80 /* files, and do not go through the virtualization API. */
81 /* ==================================================================== */
82
85 FILE CPL_DLL * VSIFOpen( const char *, const char * ) CPL_WARN_UNUSED_RESULT;
86 int CPL_DLL VSIFClose( FILE * );
87 int CPL_DLL VSIFSeek( FILE *, long, int ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
88 long CPL_DLL VSIFTell( FILE * ) CPL_WARN_UNUSED_RESULT;
89 void CPL_DLL VSIRewind( FILE * );
90 void CPL_DLL VSIFFlush( FILE * );
91
92 size_t CPL_DLL VSIFRead( void *, size_t, size_t, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
93 size_t CPL_DLL VSIFWrite( const void *, size_t, size_t, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
94 char CPL_DLL *VSIFGets( char *, int, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
95 int CPL_DLL VSIFPuts( const char *, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
96 int CPL_DLL VSIFPrintf( FILE *, CPL_FORMAT_STRING(const char *), ... ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT CPL_PRINT_FUNC_FORMAT(2, 3);
97
98 int CPL_DLL VSIFGetc( FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
99 int CPL_DLL VSIFPutc( int, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
100 int CPL_DLL VSIUngetc( int, FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
101 int CPL_DLL VSIFEof( FILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
102
105 /* ==================================================================== */
106 /* VSIStat() related. */
107 /* ==================================================================== */
108
110 typedef struct stat VSIStatBuf;
111 int CPL_DLL VSIStat( const char *, VSIStatBuf * ) CPL_WARN_UNUSED_RESULT;
114 #ifdef _WIN32
115 # define VSI_ISLNK(x) ( 0 ) /* N/A on Windows */
116 # define VSI_ISREG(x) ((x) & S_IFREG)
117 # define VSI_ISDIR(x) ((x) & S_IFDIR)
118 # define VSI_ISCHR(x) ((x) & S_IFCHR)
119 # define VSI_ISBLK(x) ( 0 ) /* N/A on Windows */
120 #else
121
122 # define VSI_ISLNK(x) S_ISLNK(x)
123
124 # define VSI_ISREG(x) S_ISREG(x)
125
126 # define VSI_ISDIR(x) S_ISDIR(x)
127
128 # define VSI_ISCHR(x) S_ISCHR(x)
129 # define VSI_ISBLK(x) S_ISBLK(x)
130
131 #endif
132
133 /* ==================================================================== */
134 /* 64bit stdio file access functions. If we have a big size */
135 /* defined, then provide prototypes for the large file API, */
136 /* otherwise redefine to use the regular api. */
137 /* ==================================================================== */
138
140 typedef GUIntBig vsi_l_offset;
142 #define VSI_L_OFFSET_MAX GUINTBIG_MAX
143
145 /* Make VSIL_STRICT_ENFORCE active in DEBUG builds */
146 #ifdef DEBUG
147 #define VSIL_STRICT_ENFORCE
148 #endif
149
151 #ifdef VSIL_STRICT_ENFORCE
152
153 typedef struct _VSILFILE VSILFILE;
154 #else
155
156 typedef FILE VSILFILE;
157 #endif
158
159 VSILFILE CPL_DLL * VSIFOpenL( const char *, const char * ) CPL_WARN_UNUSED_RESULT;
160 VSILFILE CPL_DLL * VSIFOpenExL( const char *, const char *, int ) CPL_WARN_UNUSED_RESULT;
161 int CPL_DLL VSIFCloseL( VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
162 int CPL_DLL VSIFSeekL( VSILFILE *, vsi_l_offset, int ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
163 vsi_l_offset CPL_DLL VSIFTellL( VSILFILE * ) CPL_WARN_UNUSED_RESULT;
164 void CPL_DLL VSIRewindL( VSILFILE * );
165 size_t CPL_DLL VSIFReadL( void *, size_t, size_t, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
166 int CPL_DLL VSIFReadMultiRangeL( int nRanges, void ** ppData, const vsi_l_offset* panOffsets, const size_t* panSizes, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
167 size_t CPL_DLL VSIFWriteL( const void *, size_t, size_t, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
168 int CPL_DLL VSIFEofL( VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
169 int CPL_DLL VSIFTruncateL( VSILFILE *, vsi_l_offset ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
170 int CPL_DLL VSIFFlushL( VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
171 int CPL_DLL VSIFPrintfL( VSILFILE *, CPL_FORMAT_STRING(const char *), ... ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT CPL_PRINT_FUNC_FORMAT(2, 3);
172 int CPL_DLL VSIFPutcL( int, VSILFILE * ) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT;
173
175 typedef enum
176 {
177 VSI_RANGE_STATUS_UNKNOWN,
178 VSI_RANGE_STATUS_DATA,
179 VSI_RANGE_STATUS_HOLE
180 } VSIRangeStatus;
181
182 VSIRangeStatus CPL_DLL VSIFGetRangeStatusL( VSILFILE * fp, vsi_l_offset nStart, vsi_l_offset nLength );
183
184 int CPL_DLL VSIIngestFile( VSILFILE* fp,
185 const char* pszFilename,
186 GByte** ppabyRet,
187 vsi_l_offset* pnSize,
188 GIntBig nMaxSize ) CPL_WARN_UNUSED_RESULT;
189
190 int CPL_DLL VSIOverwriteFile( VSILFILE* fpTarget, const char* pszSourceFilename ) CPL_WARN_UNUSED_RESULT;
191
192 #if defined(VSI_STAT64_T)
193
194 typedef struct VSI_STAT64_T VSIStatBufL;
195 #else
196
197 #define VSIStatBufL VSIStatBuf
198 #endif
199
200 int CPL_DLL VSIStatL( const char *, VSIStatBufL * ) CPL_WARN_UNUSED_RESULT;
201
203 #define VSI_STAT_EXISTS_FLAG 0x1
204
205 #define VSI_STAT_NATURE_FLAG 0x2
206
207 #define VSI_STAT_SIZE_FLAG 0x4
208
209 #define VSI_STAT_SET_ERROR_FLAG 0x8
210
211 int CPL_DLL VSIStatExL( const char * pszFilename, VSIStatBufL * psStatBuf, int nFlags ) CPL_WARN_UNUSED_RESULT;
212
213 int CPL_DLL VSIIsCaseSensitiveFS( const char * pszFilename );
214
215 int CPL_DLL VSISupportsSparseFiles( const char* pszPath );
216
217 int CPL_DLL VSIHasOptimizedReadMultiRange( const char* pszPath );
218
219 const char CPL_DLL *VSIGetActualURL( const char* pszFilename );
220
221 char CPL_DLL *VSIGetSignedURL( const char* pszFilename, CSLConstList papszOptions );
222
223 const char CPL_DLL *VSIGetFileSystemOptions( const char* pszFilename );
224
225 char CPL_DLL **VSIGetFileSystemsPrefixes( void );
226
227 void CPL_DLL *VSIFGetNativeFileDescriptorL( VSILFILE* );
228
229 char CPL_DLL **VSIGetFileMetadata( const char * pszFilename, const char* pszDomain,
230 CSLConstList papszOptions ) CPL_WARN_UNUSED_RESULT;
231
232 int CPL_DLL VSISetFileMetadata( const char * pszFilename,
233 CSLConstList papszMetadata,
234 const char* pszDomain,
235 CSLConstList papszOptions );
236
237 /* ==================================================================== */
238 /* Memory allocation */
239 /* ==================================================================== */
240
241 void CPL_DLL *VSICalloc( size_t, size_t ) CPL_WARN_UNUSED_RESULT;
242 void CPL_DLL *VSIMalloc( size_t ) CPL_WARN_UNUSED_RESULT;
243 void CPL_DLL VSIFree( void * );
244 void CPL_DLL *VSIRealloc( void *, size_t ) CPL_WARN_UNUSED_RESULT;
245 char CPL_DLL *VSIStrdup( const char * ) CPL_WARN_UNUSED_RESULT;
246
247 void CPL_DLL *VSIMallocAligned( size_t nAlignment, size_t nSize ) CPL_WARN_UNUSED_RESULT;
248 void CPL_DLL *VSIMallocAlignedAuto( size_t nSize ) CPL_WARN_UNUSED_RESULT;
249 void CPL_DLL VSIFreeAligned( void* ptr );
250
251 void CPL_DLL *VSIMallocAlignedAutoVerbose( size_t nSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
253 #define VSI_MALLOC_ALIGNED_AUTO_VERBOSE( size ) VSIMallocAlignedAutoVerbose(size,__FILE__,__LINE__)
254
262 void CPL_DLL *VSIMalloc2( size_t nSize1, size_t nSize2 ) CPL_WARN_UNUSED_RESULT;
263
271 void CPL_DLL *VSIMalloc3( size_t nSize1, size_t nSize2, size_t nSize3 ) CPL_WARN_UNUSED_RESULT;
272
274 void CPL_DLL *VSIMallocVerbose( size_t nSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
276 #define VSI_MALLOC_VERBOSE( size ) VSIMallocVerbose(size,__FILE__,__LINE__)
277
279 void CPL_DLL *VSIMalloc2Verbose( size_t nSize1, size_t nSize2, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
281 #define VSI_MALLOC2_VERBOSE( nSize1, nSize2 ) VSIMalloc2Verbose(nSize1,nSize2,__FILE__,__LINE__)
282
284 void CPL_DLL *VSIMalloc3Verbose( size_t nSize1, size_t nSize2, size_t nSize3, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
286 #define VSI_MALLOC3_VERBOSE( nSize1, nSize2, nSize3 ) VSIMalloc3Verbose(nSize1,nSize2,nSize3,__FILE__,__LINE__)
287
289 void CPL_DLL *VSICallocVerbose( size_t nCount, size_t nSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
291 #define VSI_CALLOC_VERBOSE( nCount, nSize ) VSICallocVerbose(nCount,nSize,__FILE__,__LINE__)
292
294 void CPL_DLL *VSIReallocVerbose( void* pOldPtr, size_t nNewSize, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
296 #define VSI_REALLOC_VERBOSE( pOldPtr, nNewSize ) VSIReallocVerbose(pOldPtr,nNewSize,__FILE__,__LINE__)
297
299 char CPL_DLL *VSIStrdupVerbose( const char* pszStr, const char* pszFile, int nLine ) CPL_WARN_UNUSED_RESULT;
301 #define VSI_STRDUP_VERBOSE( pszStr ) VSIStrdupVerbose(pszStr,__FILE__,__LINE__)
302
303 GIntBig CPL_DLL CPLGetPhysicalRAM(void);
304 GIntBig CPL_DLL CPLGetUsablePhysicalRAM(void);
305
306 /* ==================================================================== */
307 /* Other... */
308 /* ==================================================================== */
309
311 #define CPLReadDir VSIReadDir
312 char CPL_DLL **VSIReadDir( const char * );
313 char CPL_DLL **VSIReadDirRecursive( const char *pszPath );
314 char CPL_DLL **VSIReadDirEx( const char *pszPath, int nMaxFiles );
315
317 typedef struct VSIDIR VSIDIR;
318
319 VSIDIR CPL_DLL *VSIOpenDir( const char *pszPath,
320 int nRecurseDepth,
321 const char* const *papszOptions);
322
324 typedef struct VSIDIREntry VSIDIREntry;
328 struct VSIDIREntry
329 {
331 char* pszName;
333 int nMode;
335 vsi_l_offset nSize;
337 GIntBig nMTime;
339 char bModeKnown;
341 char bSizeKnown;
343 char bMTimeKnown;
345 char** papszExtra;
346
347 #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
348
349 VSIDIREntry();
350 ~VSIDIREntry();
351 VSIDIREntry(const VSIDIREntry&);
352 VSIDIREntry& operator=(VSIDIREntry&) = delete;
354 #endif
355 };
356
357 const VSIDIREntry CPL_DLL *VSIGetNextDirEntry(VSIDIR* dir);
358 void CPL_DLL VSICloseDir(VSIDIR* dir);
359
360 int CPL_DLL VSIMkdir( const char * pszPathname, long mode );
361 int CPL_DLL VSIMkdirRecursive( const char * pszPathname, long mode );
362 int CPL_DLL VSIRmdir( const char * pszDirname );
363 int CPL_DLL VSIRmdirRecursive( const char * pszDirname );
364 int CPL_DLL VSIUnlink( const char * pszFilename );
365 int CPL_DLL *VSIUnlinkBatch( CSLConstList papszFiles );
366 int CPL_DLL VSIRename( const char * oldpath, const char * newpath );
367 int CPL_DLL VSISync( const char* pszSource, const char* pszTarget,
368 const char* const * papszOptions,
369 GDALProgressFunc pProgressFunc,
370 void *pProgressData,
371 char*** ppapszOutputs );
372
373 char CPL_DLL *VSIStrerror( int );
374 GIntBig CPL_DLL VSIGetDiskFreeSpace(const char *pszDirname);
375
376 /* ==================================================================== */
377 /* Install special file access handlers. */
378 /* ==================================================================== */
379 void CPL_DLL VSIInstallMemFileHandler(void);
381 void CPL_DLL VSIInstallLargeFileHandler(void);
383 void CPL_DLL VSIInstallSubFileHandler(void);
384 void VSIInstallCurlFileHandler(void);
385 void CPL_DLL VSICurlClearCache(void);
386 void CPL_DLL VSICurlPartialClearCache(const char* pszFilenamePrefix);
387 void VSIInstallCurlStreamingFileHandler(void);
388 void VSIInstallS3FileHandler(void);
389 void VSIInstallS3StreamingFileHandler(void);
390 void VSIInstallGSFileHandler(void);
391 void VSIInstallGSStreamingFileHandler(void);
392 void VSIInstallAzureFileHandler(void);
393 void VSIInstallAzureStreamingFileHandler(void);
394 void VSIInstallOSSFileHandler(void);
395 void VSIInstallOSSStreamingFileHandler(void);
396 void VSIInstallSwiftFileHandler(void);
397 void VSIInstallSwiftStreamingFileHandler(void);
398 void VSIInstallGZipFileHandler(void); /* No reason to export that */
399 void VSIInstallZipFileHandler(void); /* No reason to export that */
400 void VSIInstallStdinHandler(void); /* No reason to export that */
401 void VSIInstallHdfsHandler(void); /* No reason to export that */
402 void VSIInstallWebHdfsHandler(void); /* No reason to export that */
403 void VSIInstallStdoutHandler(void); /* No reason to export that */
404 void CPL_DLL VSIInstallSparseFileHandler(void);
405 void VSIInstallTarFileHandler(void); /* No reason to export that */
406 void CPL_DLL VSIInstallCryptFileHandler(void);
407 void CPL_DLL VSISetCryptKey(const GByte* pabyKey, int nKeySize);
409 void CPL_DLL VSICleanupFileManager(void);
412 VSILFILE CPL_DLL *VSIFileFromMemBuffer( const char *pszFilename,
413 GByte *pabyData,
414 vsi_l_offset nDataLength,
415 int bTakeOwnership ) CPL_WARN_UNUSED_RESULT;
416 GByte CPL_DLL *VSIGetMemFileBuffer( const char *pszFilename,
417 vsi_l_offset *pnDataLength,
418 int bUnlinkAndSeize );
419
421 typedef size_t (*VSIWriteFunction)(const void* ptr, size_t size, size_t nmemb, FILE* stream);
422 void CPL_DLL VSIStdoutSetRedirection( VSIWriteFunction pFct, FILE* stream );
423
428 typedef int (*VSIFilesystemPluginStatCallback) ( void *pUserData, const char *pszFilename, VSIStatBufL *pStatBuf, int nFlags );
433 typedef int (*VSIFilesystemPluginUnlinkCallback) ( void *pUserData, const char *pszFilename );
438 typedef int (*VSIFilesystemPluginRenameCallback) ( void *pUserData, const char *oldpath, const char *newpath );
443 typedef int (*VSIFilesystemPluginMkdirCallback) ( void *pUserData, const char *pszDirname, long nMode );
448 typedef int (*VSIFilesystemPluginRmdirCallback) ( void *pUserData, const char *pszDirname );
453 typedef char** (*VSIFilesystemPluginReadDirCallback) ( void *pUserData, const char *pszDirname, int nMaxFiles );
459 typedef void* (*VSIFilesystemPluginOpenCallback) ( void *pUserData, const char *pszFilename, const char *pszAccess );
464 typedef vsi_l_offset (*VSIFilesystemPluginTellCallback) ( void *pFile );
469 typedef int (*VSIFilesystemPluginSeekCallback) ( void *pFile, vsi_l_offset nOffset, int nWhence );
475 typedef size_t (*VSIFilesystemPluginReadCallback) ( void *pFile, void *pBuffer, size_t nSize, size_t nCount );
480 typedef int (*VSIFilesystemPluginReadMultiRangeCallback)( void *pFile, int nRanges, void ** ppData,
481 const vsi_l_offset* panOffsets, const size_t* panSizes );
486 typedef VSIRangeStatus (*VSIFilesystemPluginGetRangeStatusCallback)( void *pFile, vsi_l_offset nOffset, vsi_l_offset nLength );
491 typedef int (*VSIFilesystemPluginEofCallback) ( void *pFile );
496 typedef size_t (*VSIFilesystemPluginWriteCallback) ( void *pFile, const void *pBuffer, size_t nSize,size_t nCount);
501 typedef int (*VSIFilesystemPluginFlushCallback) ( void *pFile );
505 typedef int (*VSIFilesystemPluginTruncateCallback) ( void *pFile, vsi_l_offset nNewSize );
510 typedef int (*VSIFilesystemPluginCloseCallback) ( void *pFile );
511
519 typedef struct {
523 void *pUserData;
524 VSIFilesystemPluginStatCallback stat;
525 VSIFilesystemPluginUnlinkCallback unlink;
526 VSIFilesystemPluginRenameCallback rename;
527 VSIFilesystemPluginMkdirCallback mkdir;
528 VSIFilesystemPluginRmdirCallback rmdir;
529 VSIFilesystemPluginReadDirCallback read_dir;
530 VSIFilesystemPluginOpenCallback open;
531 VSIFilesystemPluginTellCallback tell;
532 VSIFilesystemPluginSeekCallback seek;
533 VSIFilesystemPluginReadCallback read;
534 VSIFilesystemPluginReadMultiRangeCallback read_multi_range;
535 VSIFilesystemPluginGetRangeStatusCallback get_range_status;
536 VSIFilesystemPluginEofCallback eof;
537 VSIFilesystemPluginWriteCallback write;
538 VSIFilesystemPluginFlushCallback flush;
539 VSIFilesystemPluginTruncateCallback truncate;
540 VSIFilesystemPluginCloseCallback close;
541 /*
542 Callbacks are defined as a struct allocated by a call to VSIAllocFilesystemPluginCallbacksStruct
543 in order to try to maintain ABI stability when eventually adding a new member.
544 Any callbacks added to this struct SHOULD be added to the END of this struct
545 */
546 } VSIFilesystemPluginCallbacksStruct;
547
552 VSIFilesystemPluginCallbacksStruct CPL_DLL *VSIAllocFilesystemPluginCallbacksStruct( void );
553
558 void CPL_DLL VSIFreeFilesystemPluginCallbacksStruct(VSIFilesystemPluginCallbacksStruct* poCb);
559
566 int CPL_DLL VSIInstallPluginHandler( const char* pszPrefix, const VSIFilesystemPluginCallbacksStruct* poCb);
567
568 /* ==================================================================== */
569 /* Time querying. */
570 /* ==================================================================== */
571
573 unsigned long CPL_DLL VSITime( unsigned long * );
574 const char CPL_DLL *VSICTime( unsigned long );
575 struct tm CPL_DLL *VSIGMTime( const time_t *pnTime,
576 struct tm *poBrokenTime );
577 struct tm CPL_DLL *VSILocalTime( const time_t *pnTime,
578 struct tm *poBrokenTime );
582 /* -------------------------------------------------------------------- */
583 /* the following can be turned on for detailed logging of */
584 /* almost all IO calls. */
585 /* -------------------------------------------------------------------- */
586 #ifdef VSI_DEBUG
587
588 #ifndef DEBUG
589 # define DEBUG
590 #endif
591
592 #include "cpl_error.h"
593
594 #define VSIDebug4(f,a1,a2,a3,a4) CPLDebug( "VSI", f, a1, a2, a3, a4 );
595 #define VSIDebug3( f, a1, a2, a3 ) CPLDebug( "VSI", f, a1, a2, a3 );
596 #define VSIDebug2( f, a1, a2 ) CPLDebug( "VSI", f, a1, a2 );
597 #define VSIDebug1( f, a1 ) CPLDebug( "VSI", f, a1 );
598 #else
599 #define VSIDebug4( f, a1, a2, a3, a4 ) {}
600 #define VSIDebug3( f, a1, a2, a3 ) {}
601 #define VSIDebug2( f, a1, a2 ) {}
602 #define VSIDebug1( f, a1 ) {}
603 #endif
604
606 CPL_C_END
607
608 #endif /* ndef CPL_VSI_H_INCLUDED */
VSIDIREntry
Directory entry.
Definition: cpl_vsi.h:328
VSIRangeStatus
VSIRangeStatus
Range status.
Definition: cpl_vsi.h:175
CPLGetPhysicalRAM
GIntBig CPLGetPhysicalRAM(void)
Return the total physical RAM in bytes.
Definition: cpl_vsisimple.cpp:1369
VSIMalloc2Verbose
void * VSIMalloc2Verbose(size_t nSize1, size_t nSize2, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
VSIMalloc2Verbose.
Definition: cpl_vsisimple.cpp:1155
VSIFilesystemPluginFlushCallback
int(* VSIFilesystemPluginFlushCallback)(void *pFile)
Sync written bytes.
Definition: cpl_vsi.h:501
VSIReadDir
char ** VSIReadDir(const char *)
Read names in a directory.
Definition: cpl_vsil.cpp:84
VSIRename
int VSIRename(const char *oldpath, const char *newpath)
Rename a file.
Definition: cpl_vsil.cpp:572
VSIMalloc
void * VSIMalloc(size_t) CPL_WARN_UNUSED_RESULT
Analog of malloc().
Definition: cpl_vsisimple.cpp:558
VSISync
int VSISync(const char *pszSource, const char *pszTarget, const char *const *papszOptions, GDALProgressFunc pProgressFunc, void *pProgressData, char ***ppapszOutputs)
Synchronize a source file/directory with a target file/directory.
Definition: cpl_vsil.cpp:651
VSIRewindL
void VSIRewindL(VSILFILE *)
Rewind the file pointer to the beginning of the file.
Definition: cpl_vsil.cpp:1792
VSIStatExL
int VSIStatExL(const char *pszFilename, VSIStatBufL *psStatBuf, int nFlags) CPL_WARN_UNUSED_RESULT
Get filesystem object info.
Definition: cpl_vsil.cpp:804
VSIFGetNativeFileDescriptorL
void * VSIFGetNativeFileDescriptorL(VSILFILE *)
Returns the "native" file descriptor for the virtual handle.
Definition: cpl_vsil.cpp:2494
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:1770
CPL_C_START
#define CPL_C_START
Macro to start a block of C symbols.
Definition: cpl_port.h:337
VSIFilesystemPluginWriteCallback
size_t(* VSIFilesystemPluginWriteCallback)(void *pFile, const void *pBuffer, size_t nSize, size_t nCount)
Write bytes at current offset.
Definition: cpl_vsi.h:496
VSIWriteFunction
size_t(* VSIWriteFunction)(const void *ptr, size_t size, size_t nmemb, FILE *stream)
Callback used by VSIStdoutSetRedirection()
Definition: cpl_vsi.h:421
VSIDIREntry::nMode
int nMode
File mode.
Definition: cpl_vsi.h:333
VSI_RANGE_STATUS_HOLE
Hole.
Definition: cpl_vsi.h:179
VSIGetFileSystemOptions
const char * VSIGetFileSystemOptions(const char *pszFilename)
Return the list of options associated with a virtual file system handler as a serialized XML string...
Definition: cpl_vsil.cpp:2557
VSIRmdirRecursive
int VSIRmdirRecursive(const char *pszDirname)
Delete a directory recursively.
Definition: cpl_vsil.cpp:728
VSIFEofL
int VSIFEofL(VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Test for end of file.
Definition: cpl_vsil.cpp:2045
VSIFilesystemPluginCallbacksStruct::seek
VSIFilesystemPluginSeekCallback seek
set current position of handle (rw)
Definition: cpl_vsi.h:532
VSILFILE
FILE VSILFILE
Opaque type for a FILE that implements the VSIVirtualHandle API.
Definition: cpl_vsi.h:156
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:2239
VSIInstallS3FileHandler
void VSIInstallS3FileHandler(void)
Install /vsis3/ Amazon S3 file system handler (requires libcurl)
Definition: cpl_vsil_s3.cpp:4076
VSIFreeAligned
void VSIFreeAligned(void *ptr)
Free a buffer allocated with VSIMallocAligned().
Definition: cpl_vsisimple.cpp:975
VSIDIREntry::nSize
vsi_l_offset nSize
File size.
Definition: cpl_vsi.h:335
VSIFPutcL
int VSIFPutcL(int, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Write a single byte to the file.
Definition: cpl_vsil.cpp:2150
VSIFilesystemPluginGetRangeStatusCallback
VSIRangeStatus(* VSIFilesystemPluginGetRangeStatusCallback)(void *pFile, vsi_l_offset nOffset, vsi_l_offset nLength)
Get empty ranges.
Definition: cpl_vsi.h:486
VSIGetNextDirEntry
const VSIDIREntry * VSIGetNextDirEntry(VSIDIR *dir)
Return the next entry of the directory.
Definition: cpl_vsil.cpp:380
VSIFilesystemPluginCallbacksStruct::flush
VSIFilesystemPluginFlushCallback flush
sync bytes (w)
Definition: cpl_vsi.h:538
VSIReadDirEx
char ** VSIReadDirEx(const char *pszPath, int nMaxFiles)
Read names in a directory.
Definition: cpl_vsil.cpp:118
VSIFReadL
size_t VSIFReadL(void *, size_t, size_t, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Read bytes from file.
Definition: cpl_vsil.cpp:1885
VSIMallocAlignedAutoVerbose
void * VSIMallocAlignedAutoVerbose(size_t nSize, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
See VSIMallocAlignedAuto()
Definition: cpl_vsisimple.cpp:951
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:64
VSIDIREntry::pszName
char * pszName
Filename.
Definition: cpl_vsi.h:331
CPLGetUsablePhysicalRAM
GIntBig CPLGetUsablePhysicalRAM(void)
Return the total physical RAM, usable by a process, in bytes.
Definition: cpl_vsisimple.cpp:1460
VSI_RANGE_STATUS_DATA
Data present.
Definition: cpl_vsi.h:178
GByte
unsigned char GByte
Unsigned byte type.
Definition: cpl_port.h:215
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:1129
VSIFilesystemPluginEofCallback
int(* VSIFilesystemPluginEofCallback)(void *pFile)
Has end of file been reached.
Definition: cpl_vsi.h:491
VSIRmdir
int VSIRmdir(const char *pszDirname)
Delete a directory.
Definition: cpl_vsil.cpp:703
VSIFilesystemPluginStatCallback
int(* VSIFilesystemPluginStatCallback)(void *pUserData, const char *pszFilename, VSIStatBufL *pStatBuf, int nFlags)
Return information about a handle.
Definition: cpl_vsi.h:428
VSIRealloc
void * VSIRealloc(void *, size_t) CPL_WARN_UNUSED_RESULT
Analog of realloc().
Definition: cpl_vsisimple.cpp:681
VSIDIREntry::bModeKnown
char bModeKnown
Whether nMode is known: 0 = unknown, 1 = known.
Definition: cpl_vsi.h:339
VSIFilesystemPluginCallbacksStruct::read
VSIFilesystemPluginReadCallback read
read from current position (r)
Definition: cpl_vsi.h:533
CPL_PRINT_FUNC_FORMAT
#define CPL_PRINT_FUNC_FORMAT(format_idx, arg_idx)
Tag a function to have printf() formatting.
Definition: cpl_port.h:917
VSICloseDir
void VSICloseDir(VSIDIR *dir)
Close a directory.
Definition: cpl_vsil.cpp:399
VSIInstallGSStreamingFileHandler
void VSIInstallGSStreamingFileHandler(void)
Install /vsigs_streaming/ Google Cloud Storage file system handler (requires libcurl) ...
Definition: cpl_vsil_curl_streaming.cpp:2103
VSIMallocAlignedAuto
void * VSIMallocAlignedAuto(size_t nSize) CPL_WARN_UNUSED_RESULT
Allocates a buffer with an alignment constraint such that it can be used by the most demanding vector...
Definition: cpl_vsisimple.cpp:938
VSISupportsSparseFiles
int VSISupportsSparseFiles(const char *pszPath)
Returns if the filesystem supports sparse files.
Definition: cpl_vsil.cpp:956
VSIFTruncateL
int VSIFTruncateL(VSILFILE *, vsi_l_offset) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Truncate/expand the file to the specified size.
Definition: cpl_vsil.cpp:2087
VSIFilesystemPluginUnlinkCallback
int(* VSIFilesystemPluginUnlinkCallback)(void *pUserData, const char *pszFilename)
Remove handle by name.
Definition: cpl_vsi.h:433
VSIInstallStdoutHandler
void VSIInstallStdoutHandler(void)
Install /vsistdout/ file system handler.
Definition: cpl_vsil_stdout.cpp:444
VSIInstallSubFileHandler
void VSIInstallSubFileHandler(void)
Install /vsisubfile/ virtual file handler.
Definition: cpl_vsil_subfile.cpp:499
VSIDIREntry::papszExtra
char ** papszExtra
NULL-terminated list of extra properties.
Definition: cpl_vsi.h:345
VSIInstallGSFileHandler
void VSIInstallGSFileHandler(void)
Install /vsigs/ Google Cloud Storage file system handler (requires libcurl)
Definition: cpl_vsil_gs.cpp:329
VSIInstallCurlStreamingFileHandler
void VSIInstallCurlStreamingFileHandler(void)
Install /vsicurl_streaming/ HTTP/FTP file system handler (requires libcurl).
Definition: cpl_vsil_curl_streaming.cpp:2066
VSIFOpenL
VSILFILE * VSIFOpenL(const char *, const char *) CPL_WARN_UNUSED_RESULT
Open file.
Definition: cpl_vsil.cpp:1097
VSIFilesystemPluginCallbacksStruct
struct containing callbacks to used by the handler.
Definition: cpl_vsi.h:519
VSIFilesystemPluginCallbacksStruct::tell
VSIFilesystemPluginTellCallback tell
get current position of handle (rw)
Definition: cpl_vsi.h:531
VSIInstallStdinHandler
void VSIInstallStdinHandler(void)
Install /vsistdin/ file system handler.
Definition: cpl_vsil_stdin.cpp:421
VSIFilesystemPluginMkdirCallback
int(* VSIFilesystemPluginMkdirCallback)(void *pUserData, const char *pszDirname, long nMode)
Create Directory.
Definition: cpl_vsi.h:443
VSIInstallPluginHandler
int VSIInstallPluginHandler(const char *pszPrefix, const VSIFilesystemPluginCallbacksStruct *poCb)
register a handler on the given prefix.
Definition: cpl_vsil_plugin.cpp:344
VSIGetFileSystemsPrefixes
char ** VSIGetFileSystemsPrefixes(void)
Return the list of prefixes for virtual file system handlers currently registered.
Definition: cpl_vsil.cpp:2537
VSIFilesystemPluginTellCallback
vsi_l_offset(* VSIFilesystemPluginTellCallback)(void *pFile)
Return current position in handle.
Definition: cpl_vsi.h:464
VSIReallocVerbose
void * VSIReallocVerbose(void *pOldPtr, size_t nNewSize, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
VSIReallocVerbose.
Definition: cpl_vsisimple.cpp:1224
VSIStrerror
char * VSIStrerror(int)
Return the error string corresponding to the error number.
Definition: cpl_vsisimple.cpp:1347
VSIInstallTarFileHandler
void VSIInstallTarFileHandler(void)
Install /vsitar/ file system handler.
Definition: cpl_vsil_tar.cpp:641
VSIInstallZipFileHandler
void VSIInstallZipFileHandler(void)
Install ZIP file system handler.
Definition: cpl_vsil_gzip.cpp:3314
VSIFilesystemPluginCallbacksStruct::get_range_status
VSIFilesystemPluginGetRangeStatusCallback get_range_status
get range status ()
Definition: cpl_vsi.h:535
VSIIsCaseSensitiveFS
int VSIIsCaseSensitiveFS(const char *pszFilename)
Returns if the filenames of the filesystem are case sensitive.
Definition: cpl_vsil.cpp:926
VSIFilesystemPluginReadDirCallback
char **(* VSIFilesystemPluginReadDirCallback)(void *pUserData, const char *pszDirname, int nMaxFiles)
List directory content.
Definition: cpl_vsi.h:453
VSIMkdir
int VSIMkdir(const char *pszPathname, long mode)
Create a directory.
Definition: cpl_vsil.cpp:424
VSIStatBufL
struct VSI_STAT64_T VSIStatBufL
Type for VSIStatL()
Definition: cpl_vsi.h:194
VSIMkdirRecursive
int VSIMkdirRecursive(const char *pszPathname, long mode)
Create a directory and all its ancestors.
Definition: cpl_vsil.cpp:447
VSIFCloseL
int VSIFCloseL(VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Close file.
Definition: cpl_vsil.cpp:1667
VSIFWriteL
size_t VSIFWriteL(const void *, size_t, size_t, VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Write bytes to file.
Definition: cpl_vsil.cpp:1999
VSIFilesystemPluginCallbacksStruct::unlink
VSIFilesystemPluginUnlinkCallback unlink
unlink handle by name ()
Definition: cpl_vsi.h:525
VSI_RANGE_STATUS_UNKNOWN
Unknown.
Definition: cpl_vsi.h:177
VSIHasOptimizedReadMultiRange
int VSIHasOptimizedReadMultiRange(const char *pszPath)
Returns if the filesystem supports efficient multi-range reading.
Definition: cpl_vsil.cpp:982
VSIFilesystemPluginCallbacksStruct::rename
VSIFilesystemPluginRenameCallback rename
rename handle ()
Definition: cpl_vsi.h:526
VSIMalloc2
void * VSIMalloc2(size_t nSize1, size_t nSize2) CPL_WARN_UNUSED_RESULT
VSIMalloc2 allocates (nSize1 * nSize2) bytes.
Definition: cpl_vsisimple.cpp:1116
VSIUnlinkBatch
int * VSIUnlinkBatch(CSLConstList papszFiles)
Delete several files, possibly in a batch.
Definition: cpl_vsil.cpp:528
VSIFGetRangeStatusL
VSIRangeStatus VSIFGetRangeStatusL(VSILFILE *fp, vsi_l_offset nStart, vsi_l_offset nLength)
Return if a given file range contains data or holes filled with zeroes.
Definition: cpl_vsil.cpp:2202
VSIGetDiskFreeSpace
GIntBig VSIGetDiskFreeSpace(const char *pszDirname)
Return free disk space available on the filesystem.
Definition: cpl_vsil.cpp:2515
cpl_error.h
CPL error handling services.
VSIInstallSparseFileHandler
void VSIInstallSparseFileHandler(void)
Install /vsisparse/ virtual file handler.
Definition: cpl_vsil_sparsefile.cpp:547
VSIFilesystemPluginSeekCallback
int(* VSIFilesystemPluginSeekCallback)(void *pFile, vsi_l_offset nOffset, int nWhence)
Seek to position in handle.
Definition: cpl_vsi.h:469
VSIGetFileMetadata
char ** VSIGetFileMetadata(const char *pszFilename, const char *pszDomain, CSLConstList papszOptions) CPL_WARN_UNUSED_RESULT
Get metadata on files.
Definition: cpl_vsil.cpp:857
VSIAllocFilesystemPluginCallbacksStruct
VSIFilesystemPluginCallbacksStruct * VSIAllocFilesystemPluginCallbacksStruct(void)
return a VSIFilesystemPluginCallbacksStruct to be populated at runtime with handler callbacks ...
Definition: cpl_vsil_plugin.cpp:351
VSICallocVerbose
void * VSICallocVerbose(size_t nCount, size_t nSize, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
VSICallocVerbose.
Definition: cpl_vsisimple.cpp:1205
CSLConstList
char ** CSLConstList
Type of a constant null-terminated list of nul terminated strings.
Definition: cpl_port.h:1212
VSIMallocAligned
void * VSIMallocAligned(size_t nAlignment, size_t nSize) CPL_WARN_UNUSED_RESULT
Allocates a buffer with an alignment constraint.
Definition: cpl_vsisimple.cpp:892
VSIInstallGZipFileHandler
void VSIInstallGZipFileHandler(void)
Install GZip file system handler.
Definition: cpl_vsil_gzip.cpp:2443
VSIStatL
int VSIStatL(const char *, VSIStatBufL *) CPL_WARN_UNUSED_RESULT
Get filesystem object info.
Definition: cpl_vsil.cpp:765
VSIFilesystemPluginCallbacksStruct::rmdir
VSIFilesystemPluginRmdirCallback rmdir
remove directory ()
Definition: cpl_vsi.h:528
VSIFilesystemPluginCallbacksStruct::stat
VSIFilesystemPluginStatCallback stat
stat handle by name (rw)
Definition: cpl_vsi.h:524
VSIFilesystemPluginReadCallback
size_t(* VSIFilesystemPluginReadCallback)(void *pFile, void *pBuffer, size_t nSize, size_t nCount)
Read data from current position, returns the number of blocks correctly read.
Definition: cpl_vsi.h:475
GUIntBig
unsigned long long GUIntBig
Large unsigned integer type (generally 64-bit unsigned integer type).
Definition: cpl_port.h:251
VSIInstallHdfsHandler
void VSIInstallHdfsHandler(void)
Install /vsihdfs/ file system handler (requires JVM and HDFS support)
Definition: cpl_vsil_hdfs.cpp:413
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:900
VSIStrdupVerbose
char * VSIStrdupVerbose(const char *pszStr, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
VSIStrdupVerbose.
Definition: cpl_vsisimple.cpp:1242
VSIFFlushL
int VSIFFlushL(VSILFILE *) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Flush pending writes to disk.
Definition: cpl_vsil.cpp:1833
VSIOverwriteFile
int VSIOverwriteFile(VSILFILE *fpTarget, const char *pszSourceFilename) CPL_WARN_UNUSED_RESULT
Overwrite an existing file with content from another one.
Definition: cpl_vsil.cpp:2422
VSICurlClearCache
void VSICurlClearCache(void)
Clean local cache associated with /vsicurl/ (and related file systems)
Definition: cpl_vsil_curl.cpp:4461
VSISetFileMetadata
int VSISetFileMetadata(const char *pszFilename, CSLConstList papszMetadata, const char *pszDomain, CSLConstList papszOptions)
Set metadata on files.
Definition: cpl_vsil.cpp:890
VSIDIREntry::nMTime
GIntBig nMTime
Last modification time (seconds since 1970/01/01)
Definition: cpl_vsi.h:337
VSIFilesystemPluginCallbacksStruct::mkdir
VSIFilesystemPluginMkdirCallback mkdir
make directory ()
Definition: cpl_vsi.h:527
VSIUnlink
int VSIUnlink(const char *pszFilename)
Delete a file.
Definition: cpl_vsil.cpp:499
VSIInstallCryptFileHandler
void VSIInstallCryptFileHandler(void)
Install /vsicrypt/ encrypted file system handler (requires libcrypto++)
Definition: cpl_vsil_crypt.cpp:2042
VSIFilesystemPluginRmdirCallback
int(* VSIFilesystemPluginRmdirCallback)(void *pUserData, const char *pszDirname)
Delete Directory.
Definition: cpl_vsi.h:448
VSIFSeekL
int VSIFSeekL(VSILFILE *, vsi_l_offset, int) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Seek to requested offset.
Definition: cpl_vsil.cpp:1727
VSIFilesystemPluginCallbacksStruct::eof
VSIFilesystemPluginEofCallback eof
has end of file been reached (r?)
Definition: cpl_vsi.h:536
VSIFilesystemPluginCloseCallback
int(* VSIFilesystemPluginCloseCallback)(void *pFile)
Close file handle.
Definition: cpl_vsi.h:510
VSIFilesystemPluginTruncateCallback
int(* VSIFilesystemPluginTruncateCallback)(void *pFile, vsi_l_offset nNewSize)
Truncate handle.
Definition: cpl_vsi.h:505
VSIGetActualURL
const char * VSIGetActualURL(const char *pszFilename)
Returns the actual URL of a supplied filename.
Definition: cpl_vsil.cpp:1012
VSIInstallCurlFileHandler
void VSIInstallCurlFileHandler(void)
Install /vsicurl/ HTTP/FTP file system handler (requires libcurl)
Definition: cpl_vsil_curl.cpp:4423
CPL_FORMAT_STRING
#define CPL_FORMAT_STRING(arg)
Macro into which to wrap the format argument of a printf-like function.
Definition: cpl_port.h:932
VSIMallocVerbose
void * VSIMallocVerbose(size_t nSize, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
VSIMallocVerbose.
Definition: cpl_vsisimple.cpp:1138
VSIMalloc3Verbose
void * VSIMalloc3Verbose(size_t nSize1, size_t nSize2, size_t nSize3, const char *pszFile, int nLine) CPL_WARN_UNUSED_RESULT
VSIMalloc3Verbose.
Definition: cpl_vsisimple.cpp:1180
vsi_l_offset
GUIntBig vsi_l_offset
Type for a file offset.
Definition: cpl_vsi.h:140
VSIFilesystemPluginCallbacksStruct::open
VSIFilesystemPluginOpenCallback open
open handle by name (rw)
Definition: cpl_vsi.h:530
VSIFilesystemPluginCallbacksStruct::read_dir
VSIFilesystemPluginReadDirCallback read_dir
list directory content (r?)
Definition: cpl_vsi.h:529
VSIInstallOSSFileHandler
void VSIInstallOSSFileHandler(void)
Install /vsioss/ Alibaba Cloud Object Storage Service (OSS) file system handler (requires libcurl) ...
Definition: cpl_vsil_oss.cpp:388
VSIFilesystemPluginCallbacksStruct::read_multi_range
VSIFilesystemPluginReadMultiRangeCallback read_multi_range
read multiple blocks ()
Definition: cpl_vsi.h:534
VSIOpenDir
VSIDIR * VSIOpenDir(const char *pszPath, int nRecurseDepth, const char *const *papszOptions)
Open a directory to read its entries.
Definition: cpl_vsil.cpp:343
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:1945
VSIFPrintfL
int VSIFPrintfL(VSILFILE *, const char *,...) EXPERIMENTAL_CPL_WARN_UNUSED_RESULT
Formatted write to file.
Definition: cpl_vsil.cpp:2113
VSIFilesystemPluginReadMultiRangeCallback
int(* VSIFilesystemPluginReadMultiRangeCallback)(void *pFile, int nRanges, void **ppData, const vsi_l_offset *panOffsets, const size_t *panSizes)
Read from multiple offsets.
Definition: cpl_vsi.h:480
VSIInstallSwiftFileHandler
void VSIInstallSwiftFileHandler(void)
Install /vsiswift/ OpenStack Swif Object Storage (Swift) file system handler (requires libcurl) ...
Definition: cpl_vsil_swift.cpp:717
VSICalloc
void * VSICalloc(size_t, size_t) CPL_WARN_UNUSED_RESULT
Analog of calloc().
Definition: cpl_vsisimple.cpp:444
VSIInstallAzureFileHandler
void VSIInstallAzureFileHandler(void)
Install /vsiaz/ Microsoft Azure Blob file system handler (requires libcurl)
Definition: cpl_vsil_az.cpp:1356
CPL_C_END
#define CPL_C_END
Macro to end a block of C symbols.
Definition: cpl_port.h:339
GIntBig
long long GIntBig
Large signed integer type (generally 64-bit integer type).
Definition: cpl_port.h:248
VSIInstallMemFileHandler
void VSIInstallMemFileHandler(void)
Install "memory" file system handler.
Definition: cpl_vsi_mem.cpp:870
VSIFilesystemPluginRenameCallback
int(* VSIFilesystemPluginRenameCallback)(void *pUserData, const char *oldpath, const char *newpath)
Rename handle.
Definition: cpl_vsi.h:438
VSIFree
void VSIFree(void *)
Analog of free() for data allocated with VSIMalloc(), VSICalloc(), VSIRealloc()
Definition: cpl_vsisimple.cpp:827
VSIFilesystemPluginCallbacksStruct::pUserData
void * pUserData
Optional opaque pointer passed back to filemanager callbacks (e.g.
Definition: cpl_vsi.h:523
VSIGetMemFileBuffer
GByte * VSIGetMemFileBuffer(const char *pszFilename, vsi_l_offset *pnDataLength, int bUnlinkAndSeize)
Fetch buffer underlying memory file.
Definition: cpl_vsi_mem.cpp:961
VSIFilesystemPluginCallbacksStruct::write
VSIFilesystemPluginWriteCallback write
write bytes to current position (w)
Definition: cpl_vsi.h:537
VSIFilesystemPluginCallbacksStruct::truncate
VSIFilesystemPluginTruncateCallback truncate
truncate handle (w?)
Definition: cpl_vsi.h:539
VSIDIREntry::bMTimeKnown
char bMTimeKnown
Whether nMTime is known: 0 = unknown, 1 = known.
Definition: cpl_vsi.h:343
VSIDIR
struct VSIDIR VSIDIR
Opaque type for a directory iterator.
Definition: cpl_vsi.h:317
VSIFOpenExL
VSILFILE * VSIFOpenExL(const char *, const char *, int) CPL_WARN_UNUSED_RESULT
Open file.
Definition: cpl_vsil.cpp:1611
VSISetCryptKey
void VSISetCryptKey(const GByte *pabyKey, int nKeySize)
Installs the encryption/decryption key.
Definition: cpl_vsil_crypt.cpp:205
VSIInstallWebHdfsHandler
void VSIInstallWebHdfsHandler(void)
Install /vsiwebhdfs/ WebHDFS (Hadoop File System) REST API file system handler (requires libcurl) ...
Definition: cpl_vsil_webhdfs.cpp:1188
VSIReadDirRecursive
char ** VSIReadDirRecursive(const char *pszPath)
Read names in a directory recursively.
Definition: cpl_vsil.cpp:161
VSIFilesystemPluginOpenCallback
void *(* VSIFilesystemPluginOpenCallback)(void *pUserData, const char *pszFilename, const char *pszAccess)
Open a handle.
Definition: cpl_vsi.h:459
VSIInstallOSSStreamingFileHandler
void VSIInstallOSSStreamingFileHandler(void)
Install /vsioss_streaming/ Alibaba Cloud Object Storage Service (OSS) file system handler (requires l...
Definition: cpl_vsil_curl_streaming.cpp:2140
VSIInstallSwiftStreamingFileHandler
void VSIInstallSwiftStreamingFileHandler(void)
Install /vsiswift_streamin/ OpenStack Swif Object Storage (Swift) file system handler (requires libcu...
Definition: cpl_vsil_curl_streaming.cpp:2159
VSICurlPartialClearCache
void VSICurlPartialClearCache(const char *pszFilenamePrefix)
Clean local cache associated with /vsicurl/ (and related file systems) for a given filename (and its ...
Definition: cpl_vsil_curl.cpp:4501
VSIDIREntry::bSizeKnown
char bSizeKnown
Whether nSize is known: 0 = unknown, 1 = known.
Definition: cpl_vsi.h:341
VSIFreeFilesystemPluginCallbacksStruct
void VSIFreeFilesystemPluginCallbacksStruct(VSIFilesystemPluginCallbacksStruct *poCb)
free resources allocated by VSIAllocFilesystemPluginCallbacksStruct
Definition: cpl_vsil_plugin.cpp:354
VSIInstallAzureStreamingFileHandler
void VSIInstallAzureStreamingFileHandler(void)
Install /vsiaz_streaming/ Microsoft Azure Blob file system handler (requires libcurl) ...
Definition: cpl_vsil_curl_streaming.cpp:2121
VSIStrdup
char * VSIStrdup(const char *) CPL_WARN_UNUSED_RESULT
Analog of strdup().
Definition: cpl_vsisimple.cpp:995
VSIFilesystemPluginCallbacksStruct::close
VSIFilesystemPluginCloseCallback close
close handle (rw)
Definition: cpl_vsi.h:540
VSIInstallS3StreamingFileHandler
void VSIInstallS3StreamingFileHandler(void)
Install /vsis3_streaming/ Amazon S3 file system handler (requires libcurl).
Definition: cpl_vsil_curl_streaming.cpp:2084
CPL_WARN_UNUSED_RESULT
#define CPL_WARN_UNUSED_RESULT
Qualifier to warn when the return value of a function is not used.
Definition: cpl_port.h:942
VSIGetSignedURL
char * VSIGetSignedURL(const char *pszFilename, CSLConstList papszOptions)
Returns a signed URL of a supplied filename.
Definition: cpl_vsil.cpp:1059