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Overview
| Comment: | Use SetFilePointerEx() instead of SetFilePointer() on winRT. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | winrt |
| Files: | files | file ages | folders |
| SHA1: |
36efafc618017b6448f222776d0143e5 |
| User & Date: | drh 2012-03-01 22:06:30 |
Context
|
2012-03-01
| ||
| 22:33 | Do not run the large file tests if a file named "skip-big-file" exists in the test directory. This enables tests to be run much faster on systems that lack sparse file support. check-in: 5a839123 user: drh tags: winrt | |
| 22:06 | Use SetFilePointerEx() instead of SetFilePointer() on winRT. check-in: 36efafc6 user: drh tags: winrt | |
| 21:19 | Use WaitForSingleObjectEx() as a substitute for Sleep on winRT. check-in: bf897be0 user: drh tags: winrt | |
Changes
Changes to src/os_win.c.
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#define osReadFile ((BOOL(WINAPI*)(HANDLE,LPVOID,DWORD,LPDWORD, \
LPOVERLAPPED))aSyscall[50].pCurrent)
{ "SetEndOfFile", (SYSCALL)SetEndOfFile, 0 },
#define osSetEndOfFile ((BOOL(WINAPI*)(HANDLE))aSyscall[51].pCurrent)
{ "SetFilePointer", (SYSCALL)SetFilePointer, 0 },
#define osSetFilePointer ((DWORD(WINAPI*)(HANDLE,LONG,PLONG, \
DWORD))aSyscall[52].pCurrent)
#if SQLITE_OS_WINRT
{ "Sleep", (SYSCALL)0, 0 },
#else
................................................................................
/*
** Some Microsoft compilers lack this definition.
*/
#ifndef INVALID_SET_FILE_POINTER
# define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
/*
** Move the current position of the file handle passed as the first
** argument to offset iOffset within the file. If successful, return 0.
** Otherwise, set pFile->lastErrno and return non-zero.
*/
static int seekWinFile(winFile *pFile, sqlite3_int64 iOffset){
LONG upperBits; /* Most sig. 32 bits of new offset */
................................................................................
winLogError(SQLITE_IOERR_SEEK, pFile->lastErrno,
"seekWinFile", pFile->zPath);
return 1;
}
return 0;
}
/*
** Close a file.
**
** It is reported that an attempt to close a handle might sometimes
** fail. This is a very unreasonable result, but Windows is notorious
** for being unreasonable so I do not doubt that it might happen. If
|
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#define osReadFile ((BOOL(WINAPI*)(HANDLE,LPVOID,DWORD,LPDWORD, \
LPOVERLAPPED))aSyscall[50].pCurrent)
{ "SetEndOfFile", (SYSCALL)SetEndOfFile, 0 },
#define osSetEndOfFile ((BOOL(WINAPI*)(HANDLE))aSyscall[51].pCurrent)
#if SQLITE_OS_WINRT
{ "SetFilePointer", (SYSCALL)0, 0 },
#else
{ "SetFilePointer", (SYSCALL)SetFilePointer, 0 },
#endif
#define osSetFilePointer ((DWORD(WINAPI*)(HANDLE,LONG,PLONG, \
DWORD))aSyscall[52].pCurrent)
#if SQLITE_OS_WINRT
{ "Sleep", (SYSCALL)0, 0 },
#else
................................................................................
/*
** Some Microsoft compilers lack this definition.
*/
#ifndef INVALID_SET_FILE_POINTER
# define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
#if SQLITE_OS_WINRT==0
/*
** Move the current position of the file handle passed as the first
** argument to offset iOffset within the file. If successful, return 0.
** Otherwise, set pFile->lastErrno and return non-zero.
*/
static int seekWinFile(winFile *pFile, sqlite3_int64 iOffset){
LONG upperBits; /* Most sig. 32 bits of new offset */
................................................................................
winLogError(SQLITE_IOERR_SEEK, pFile->lastErrno,
"seekWinFile", pFile->zPath);
return 1;
}
return 0;
}
#else /* if SQLITE_OS_WINRT==1 */
/*
** Same function as above, except that this implementation works for
** windowsRT.
*/
static int seekWinFile(winFile *pFile, sqlite3_int64 iOffset){
LARGE_INTEGER x;
x.QuadPart = iOffset;
return SetFilePointerEx(pFile->h, x, 0, FILE_BEGIN) ? 0 : 1;
}
#endif
/*
** Close a file.
**
** It is reported that an attempt to close a handle might sometimes
** fail. This is a very unreasonable result, but Windows is notorious
** for being unreasonable so I do not doubt that it might happen. If
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