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Support manually disabling overlapped file I/O for Windows sub-platforms other than Windows CE.

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FossilOrigin-Name: b9330b887cc8bed2b6b3e6c1b269788e08ccf50d
This commit is contained in:
mistachkin
2014-12-20 22:21:49 +00:00
parent cd54bab6fe
commit d9d812fc38
3 changed files with 14 additions and 14 deletions
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14
src/os_win.c
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@@ -2479,7 +2479,7 @@ static int winRead(
int amt, /* Number of bytes to read */
sqlite3_int64 offset /* Begin reading at this offset */
){
#if !SQLITE_OS_WINCE
#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
OVERLAPPED overlapped; /* The offset for ReadFile. */
#endif
winFile *pFile = (winFile*)id; /* file handle */
@@ -2511,7 +2511,7 @@ static int winRead(
}
#endif
#if SQLITE_OS_WINCE
#if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED)
if( winSeekFile(pFile, offset) ){
OSTRACE(("READ file=%p, rc=SQLITE_FULL\n", pFile->h));
return SQLITE_FULL;
@@ -2583,13 +2583,13 @@ static int winWrite(
}
#endif
#if SQLITE_OS_WINCE
#if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED)
rc = winSeekFile(pFile, offset);
if( rc==0 ){
#else
{
#endif
#if !SQLITE_OS_WINCE
#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
OVERLAPPED overlapped; /* The offset for WriteFile. */
#endif
u8 *aRem = (u8 *)pBuf; /* Data yet to be written */
@@ -2597,14 +2597,14 @@ static int winWrite(
DWORD nWrite; /* Bytes written by each WriteFile() call */
DWORD lastErrno = NO_ERROR; /* Value returned by GetLastError() */
#if !SQLITE_OS_WINCE
#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
memset(&overlapped, 0, sizeof(OVERLAPPED));
overlapped.Offset = (LONG)(offset & 0xffffffff);
overlapped.OffsetHigh = (LONG)((offset>>32) & 0x7fffffff);
#endif
while( nRem>0 ){
#if SQLITE_OS_WINCE
#if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED)
if( !osWriteFile(pFile->h, aRem, nRem, &nWrite, 0) ){
#else
if( !osWriteFile(pFile->h, aRem, nRem, &nWrite, &overlapped) ){
@@ -2617,7 +2617,7 @@ static int winWrite(
lastErrno = osGetLastError();
break;
}
#if !SQLITE_OS_WINCE
#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
offset += nWrite;
overlapped.Offset = (LONG)(offset & 0xffffffff);
overlapped.OffsetHigh = (LONG)((offset>>32) & 0x7fffffff);