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Implemented GetOverlappedResult.

This commit is contained in:
Mike McCormack 2000-12-29 19:44:18 +00:00 committed by Alexandre Julliard
parent 46384145ed
commit ad72e71fda
1 changed files with 48 additions and 9 deletions
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55
files/file.c
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@ -1100,16 +1100,55 @@ HFILE WINAPI _lclose( HFILE hFile )
/***********************************************************************
* GetOverlappedResult (KERNEL32.360)
*
* Check the result of an Asynchronous data transfer from a file.
*
* RETURNS
* TRUE on success
* FALSE on failure
*
* If successful (and relevant) lpTransfered will hold the number of
* bytes transfered during the async operation.
*
* BUGS
*
* Currently only works for WaitCommEvent, ReadFile, WriteFile
* with communications ports.
*
*/
BOOL WINAPI GetOverlappedResult(HANDLE hFile,LPOVERLAPPED lpOverlapped,
LPDWORD lpNumberOfBytesTransferred,
BOOL bWait)
BOOL WINAPI GetOverlappedResult(
HANDLE hFile, /* [I] handle of file to check on */
LPOVERLAPPED lpOverlapped, /* [I/O] pointer to overlapped */
LPDWORD lpTransferred, /* [I/O] number of bytes transfered */
BOOL bWait /* [I] wait for the transfer to complete ? */
) {
DWORD r;
TRACE("(%d %p %p %x)\n", hFile, lpOverlapped, lpTransferred, bWait);
if(lpOverlapped==NULL)
{
/* Since all i/o is currently synchronous,
* return true, assuming ReadFile/WriteFile
* have completed the operation */
FIXME("NO Asynch I/O, assuming Read/Write succeeded\n" );
return TRUE;
ERR("lpOverlapped was null\n");
return FALSE;
}
if(!lpOverlapped->hEvent)
{
ERR("lpOverlapped->hEvent was null\n");
return FALSE;
}
do {
TRACE("waiting on %p\n",lpOverlapped);
r = WaitForSingleObjectEx(lpOverlapped->hEvent, bWait?INFINITE:0, TRUE);
TRACE("wait on %p returned %ld\n",lpOverlapped,r);
} while (r==STATUS_USER_APC);
if(lpTransferred)
*lpTransferred = lpOverlapped->Offset;
SetLastError(lpOverlapped->Internal);
return (r==WAIT_OBJECT_0);
}
/***********************************************************************