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Overview
| Comment: | Experimental changes to use GetFileInformationByHandle instead of GetFileSize in the Win32 VFS. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | filesize-debug |
| Files: | files | file ages | folders |
| SHA1: | d22c8142972dec13435f2023fbaf51dd |
| User & Date: | mistachkin 2014-06-17 18:43:42 |
Context
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2014-06-17
| ||
| 18:43 | Experimental changes to use GetFileInformationByHandle instead of GetFileSize in the Win32 VFS. Closed-Leaf check-in: d22c8142 user: mistachkin tags: filesize-debug | |
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2014-04-24
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| 13:20 | Add sqlite3_log() diagnostic messages for a specific type of corruption where the file size is reported to be too small relative to the size in the header. This branch is intended to help debug a specific problem reported from the wild and is not for general use. check-in: 34155c40 user: drh tags: filesize-debug | |
Changes
Changes to src/os_win.c.
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#endif
}
/*
** Determine the current size of a file in bytes
*/
static int winFileSize(sqlite3_file *id, sqlite3_int64 *pSize){
DWORD upperBits;
DWORD lowerBits;
winFile *pFile = (winFile*)id;
DWORD error;
assert( id!=0 );
SimulateIOError(return SQLITE_IOERR_FSTAT);
lowerBits = GetFileSize(pFile->h, &upperBits);
if( (lowerBits == INVALID_FILE_SIZE)
&& ((error = GetLastError()) != NO_ERROR) )
{
pFile->lastErrno = error;
return winLogError(SQLITE_IOERR_FSTAT, "winFileSize", pFile->zPath);
}
*pSize = (((sqlite3_int64)upperBits)<<32) + lowerBits;
return SQLITE_OK;
}
/*
** LOCKFILE_FAIL_IMMEDIATELY is undefined on some Windows systems.
*/
#ifndef LOCKFILE_FAIL_IMMEDIATELY
# define LOCKFILE_FAIL_IMMEDIATELY 1
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#endif
}
/*
** Determine the current size of a file in bytes
*/
static int winFileSize(sqlite3_file *id, sqlite3_int64 *pSize){
BY_HANDLE_FILE_INFORMATION info;
winFile *pFile = (winFile*)id;
assert( id!=0 );
SimulateIOError(return SQLITE_IOERR_FSTAT);
memset(&info, 0, sizeof(BY_HANDLE_FILE_INFORMATION));
if( GetFileInformationByHandle(pFile->h, &info) ){
*pSize = (((u64)info.nFileSizeHigh)<<32) + info.nFileSizeLow;
return SQLITE_OK;
}else{
pFile->lastErrno = GetLastError();
return winLogError(SQLITE_IOERR_FSTAT, "winFileSize", pFile->zPath);
}
}
/*
** LOCKFILE_FAIL_IMMEDIATELY is undefined on some Windows systems.
*/
#ifndef LOCKFILE_FAIL_IMMEDIATELY
# define LOCKFILE_FAIL_IMMEDIATELY 1
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