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Overview
| Comment: | Add the sqlite3OsFileModTime() interface. But it is still unused. The change counter in page 1 is always incremented. (CVS 1594) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
186c6f93e12978907c5f0ff81d90bdf7 |
| User & Date: | drh 2004-06-15 00:29:04 |
Context
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2004-06-15
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| 01:40 | Do not use the page containing locks for anything to avoid problems with the manditory file locking on windows. (CVS 1595) (check-in: 5a814202 user: drh tags: trunk) | |
| 00:29 | Add the sqlite3OsFileModTime() interface. But it is still unused. The change counter in page 1 is always incremented. (CVS 1594) (check-in: 186c6f93 user: drh tags: trunk) | |
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2004-06-14
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| 23:46 | Update some old tests to use the new API. (CVS 1593) (check-in: af6edd2c user: danielk1977 tags: trunk) | |
Changes
Changes to src/os.h.
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int sqlite3OsSeek(OsFile*, off_t offset); int sqlite3OsSync(OsFile*); int sqlite3OsTruncate(OsFile*, off_t size); int sqlite3OsFileSize(OsFile*, off_t *pSize); int sqlite3OsRandomSeed(char*); int sqlite3OsSleep(int ms); int sqlite3OsCurrentTime(double*); void sqlite3OsEnterMutex(void); void sqlite3OsLeaveMutex(void); char *sqlite3OsFullPathname(const char*); int sqlite3OsLock(OsFile*, int); int sqlite3OsUnlock(OsFile*, int); int sqlite3OsCheckReservedLock(OsFile *id); #endif /* _SQLITE_OS_H_ */ |
> |
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int sqlite3OsSeek(OsFile*, off_t offset);
int sqlite3OsSync(OsFile*);
int sqlite3OsTruncate(OsFile*, off_t size);
int sqlite3OsFileSize(OsFile*, off_t *pSize);
int sqlite3OsRandomSeed(char*);
int sqlite3OsSleep(int ms);
int sqlite3OsCurrentTime(double*);
int sqlite3OsFileModTime(OsFile*, double*);
void sqlite3OsEnterMutex(void);
void sqlite3OsLeaveMutex(void);
char *sqlite3OsFullPathname(const char*);
int sqlite3OsLock(OsFile*, int);
int sqlite3OsUnlock(OsFile*, int);
int sqlite3OsCheckReservedLock(OsFile *id);
#endif /* _SQLITE_OS_H_ */
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Changes to src/os_unix.c.
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#ifdef SQLITE_TEST
if( sqlite3_current_time ){
*prNow = sqlite3_current_time/86400.0 + 2440587.5;
}
#endif
return 0;
}
#endif /* OS_UNIX */
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#ifdef SQLITE_TEST
if( sqlite3_current_time ){
*prNow = sqlite3_current_time/86400.0 + 2440587.5;
}
#endif
return 0;
}
/*
** Find the time that the file was last modified. Write the
** modification time and date as a Julian Day number into *prNow and
** return SQLITE_OK. Return SQLITE_ERROR if the modification
** time cannot be found.
*/
int sqlite3OsFileModTime(OsFile *id, double *prNow){
int rc;
struct stat statbuf;
if( fstat(id->h, &statbuf)==0 ){
*prNow = statbuf.st_mtime/86400.0 + 2440587.5;
rc = SQLITE_OK;
}else{
rc = SQLITE_ERROR;
}
return rc;
}
#endif /* OS_UNIX */
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Changes to src/os_win.c.
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#ifdef SQLITE_TEST
if( sqlite3_current_time ){
*prNow = sqlite3_current_time/86400.0 + 2440587.5;
}
#endif
return 0;
}
#endif /* OS_WIN */
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#ifdef SQLITE_TEST
if( sqlite3_current_time ){
*prNow = sqlite3_current_time/86400.0 + 2440587.5;
}
#endif
return 0;
}
/*
** Find the time that the file was last modified. Write the
** modification time and date as a Julian Day number into *prNow and
** return SQLITE_OK. Return SQLITE_ERROR if the modification
** time cannot be found.
*/
int sqlite3OsFileModTime(OsFile *id, double *prMTime){
int rc;
FILETIME ft;
/* FILETIME structure is a 64-bit value representing the number of
** 100-nanosecond intervals since January 1, 1601 (= JD 2305813.5).
*/
if( GetFileTime(id->h, 0, 0, &ft) ){
double t;
t = ((double)ft.dwHighDateTime) * 4294967296.0;
*prMTime = (t + ft.dwLowDateTime)/864000000000.0 + 2305813.5;
rc = SQLITE_OK;
}else{
rc = SQLITE_ERROR;
}
return rc;
}
#endif /* OS_WIN */
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