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Overview
| Comment: | When compiled for WinRT, avoid using MapViewOfFile and GetFileAttributes. Also, reset the private 'sleep' event handle when the VFS is cleaned up. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | winrt |
| Files: | files | file ages | folders |
| SHA1: |
38df8fc1b49d55b61cb168a61134b4a3 |
| User & Date: | mistachkin 2012-03-03 13:15:25 |
Context
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2012-03-04
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| 02:56 | When creating the event used to sleep on WinRT, request the minimum access rights required for the desired operations on it (i.e. SYNCHRONIZE). (check-in: ed603d75 user: mistachkin tags: winrt) | |
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2012-03-03
| ||
| 13:15 | When compiled for WinRT, avoid using MapViewOfFile and GetFileAttributes. Also, reset the private 'sleep' event handle when the VFS is cleaned up. (check-in: 38df8fc1 user: mistachkin tags: winrt) | |
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2012-03-02
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| 23:53 | When compiled for WinRT, avoid using the FORMAT_MESSAGE_ALLOCATE_BUFFER flag to FormatMessage (i.e. because LocalFree is unavailable). (check-in: 9eb331be user: mistachkin tags: winrt) | |
Changes
Changes to src/os_win.c.
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{ "GetFileInformationByHandleEx", (SYSCALL)GetFileInformationByHandleEx, 0 },
#define osGetFileInformationByHandleEx ((BOOL(WINAPI*)(HANDLE, \
FILE_INFO_BY_HANDLE_CLASS,LPVOID,DWORD))aSyscall[64].pCurrent)
#else
{ "GetFileInformationByHandleEx", (SYSCALL)0, 0 },
#endif
}; /* End of the overrideable system calls */
/*
** This is the xSetSystemCall() method of sqlite3_vfs for all of the
** "win32" VFSes. Return SQLITE_OK opon successfully updating the
** system call pointer, or SQLITE_NOTFOUND if there is no configurable
................................................................................
);
OSTRACE(("SHM-MAP pid-%d create region=%d nbyte=%d %s\n",
(int)osGetCurrentProcessId(), pShmNode->nRegion, nByte,
hMap ? "ok" : "failed"));
if( hMap ){
int iOffset = pShmNode->nRegion*szRegion;
int iOffsetShift = iOffset % winSysInfo.dwAllocationGranularity;
pMap = osMapViewOfFile(hMap, FILE_MAP_WRITE | FILE_MAP_READ,
0, iOffset - iOffsetShift, szRegion + iOffsetShift
);
OSTRACE(("SHM-MAP pid-%d map region=%d offset=%d size=%d %s\n",
(int)osGetCurrentProcessId(), pShmNode->nRegion, iOffset,
szRegion, pMap ? "ok" : "failed"));
}
if( !pMap ){
pShmNode->lastErrno = osGetLastError();
rc = winLogError(SQLITE_IOERR_SHMMAP, pShmNode->lastErrno,
................................................................................
UNUSED_PARAMETER(syncDir);
SimulateIOError(return SQLITE_IOERR_DELETE);
zConverted = convertUtf8Filename(zFilename);
if( zConverted==0 ){
return SQLITE_IOERR_NOMEM;
}
if( isNT() ){
rc = 1;
while( osGetFileAttributesW(zConverted)!=INVALID_FILE_ATTRIBUTES &&
(rc = osDeleteFileW(zConverted))==0 && retryIoerr(&cnt, &lastErrno) ){}
rc = rc ? SQLITE_OK : SQLITE_ERROR;
}
#ifdef SQLITE_WIN32_HAS_ANSI
else{
rc = 1;
while( osGetFileAttributesA(zConverted)!=INVALID_FILE_ATTRIBUTES &&
(rc = osDeleteFileA(zConverted))==0 && retryIoerr(&cnt, &lastErrno) ){}
rc = rc ? SQLITE_OK : SQLITE_ERROR;
}
#endif
if( rc ){
rc = winLogError(SQLITE_IOERR_DELETE, lastErrno,
................................................................................
winSetSystemCall, /* xSetSystemCall */
winGetSystemCall, /* xGetSystemCall */
winNextSystemCall, /* xNextSystemCall */
};
/* Double-check that the aSyscall[] array has been constructed
** correctly. See ticket [bb3a86e890c8e96ab] */
assert( ArraySize(aSyscall)==65 );
#if SQLITE_OS_WINRT
sleepObj = osCreateEventEx(NULL, NULL, CREATE_EVENT_MANUAL_RESET,
EVENT_ALL_ACCESS);
#endif
#ifndef SQLITE_OMIT_WAL
................................................................................
sqlite3_vfs_register(&winVfs, 1);
return SQLITE_OK;
}
int sqlite3_os_end(void){
#if SQLITE_OS_WINRT
osCloseHandle(sleepObj);
#endif
return SQLITE_OK;
}
#endif /* SQLITE_OS_WIN */
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{ "GetFileInformationByHandleEx", (SYSCALL)GetFileInformationByHandleEx, 0 },
#define osGetFileInformationByHandleEx ((BOOL(WINAPI*)(HANDLE, \
FILE_INFO_BY_HANDLE_CLASS,LPVOID,DWORD))aSyscall[64].pCurrent)
#else
{ "GetFileInformationByHandleEx", (SYSCALL)0, 0 },
#endif
{ "MapViewOfFileEx", (SYSCALL)MapViewOfFileEx, 0 },
#define osMapViewOfFileEx ((LPVOID(WINAPI*)(HANDLE,DWORD,DWORD,DWORD,SIZE_T, \
LPVOID))aSyscall[65].pCurrent)
}; /* End of the overrideable system calls */
/*
** This is the xSetSystemCall() method of sqlite3_vfs for all of the
** "win32" VFSes. Return SQLITE_OK opon successfully updating the
** system call pointer, or SQLITE_NOTFOUND if there is no configurable
................................................................................
);
OSTRACE(("SHM-MAP pid-%d create region=%d nbyte=%d %s\n",
(int)osGetCurrentProcessId(), pShmNode->nRegion, nByte,
hMap ? "ok" : "failed"));
if( hMap ){
int iOffset = pShmNode->nRegion*szRegion;
int iOffsetShift = iOffset % winSysInfo.dwAllocationGranularity;
#if SQLITE_OS_WINRT
pMap = osMapViewOfFileEx(hMap, FILE_MAP_WRITE | FILE_MAP_READ,
0, iOffset - iOffsetShift, szRegion + iOffsetShift, NULL
);
#else
pMap = osMapViewOfFile(hMap, FILE_MAP_WRITE | FILE_MAP_READ,
0, iOffset - iOffsetShift, szRegion + iOffsetShift
);
#endif
OSTRACE(("SHM-MAP pid-%d map region=%d offset=%d size=%d %s\n",
(int)osGetCurrentProcessId(), pShmNode->nRegion, iOffset,
szRegion, pMap ? "ok" : "failed"));
}
if( !pMap ){
pShmNode->lastErrno = osGetLastError();
rc = winLogError(SQLITE_IOERR_SHMMAP, pShmNode->lastErrno,
................................................................................
UNUSED_PARAMETER(syncDir);
SimulateIOError(return SQLITE_IOERR_DELETE);
zConverted = convertUtf8Filename(zFilename);
if( zConverted==0 ){
return SQLITE_IOERR_NOMEM;
}
rc = 1;
if( isNT() ){
#if SQLITE_OS_WINRT
WIN32_FILE_ATTRIBUTE_DATA sAttrData;
memset(&sAttrData, 0, sizeof(sAttrData));
while( osGetFileAttributesExW(zConverted, GetFileExInfoStandard,
&sAttrData) &&
#else
while( osGetFileAttributesW(zConverted)!=INVALID_FILE_ATTRIBUTES &&
#endif
(rc = osDeleteFileW(zConverted))==0 && retryIoerr(&cnt, &lastErrno) ){}
rc = rc ? SQLITE_OK : SQLITE_ERROR;
}
#ifdef SQLITE_WIN32_HAS_ANSI
else{
while( osGetFileAttributesA(zConverted)!=INVALID_FILE_ATTRIBUTES &&
(rc = osDeleteFileA(zConverted))==0 && retryIoerr(&cnt, &lastErrno) ){}
rc = rc ? SQLITE_OK : SQLITE_ERROR;
}
#endif
if( rc ){
rc = winLogError(SQLITE_IOERR_DELETE, lastErrno,
................................................................................
winSetSystemCall, /* xSetSystemCall */
winGetSystemCall, /* xGetSystemCall */
winNextSystemCall, /* xNextSystemCall */
};
/* Double-check that the aSyscall[] array has been constructed
** correctly. See ticket [bb3a86e890c8e96ab] */
assert( ArraySize(aSyscall)==66 );
#if SQLITE_OS_WINRT
sleepObj = osCreateEventEx(NULL, NULL, CREATE_EVENT_MANUAL_RESET,
EVENT_ALL_ACCESS);
#endif
#ifndef SQLITE_OMIT_WAL
................................................................................
sqlite3_vfs_register(&winVfs, 1);
return SQLITE_OK;
}
int sqlite3_os_end(void){
#if SQLITE_OS_WINRT
osCloseHandle(sleepObj);
sleepObj = NULL;
#endif
return SQLITE_OK;
}
#endif /* SQLITE_OS_WIN */
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