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Set an overlapped's hEvent for ReadFile/WriteFile in an overlapped 

completion function, not in ReadFileEx or WriteFileEx.
This commit is contained in:
Mike McCormack 2002-01-01 01:11:32 +00:00 committed by Alexandre Julliard
parent 193cf50a09
commit 9119543795
2 changed files with 20 additions and 14 deletions
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33
files/file.c
View File

@ -1335,10 +1335,9 @@ static BOOL FILE_ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
TRACE("file %d to buf %p num %ld %p func %p\n",
hFile, buffer, bytesToRead, overlapped, lpCompletionRoutine);
/* check that there is an overlapped struct with an event flag */
if ( (overlapped==NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
/* check that there is an overlapped struct */
if (overlapped==NULL)
{
TRACE("Overlapped not specified or invalid event flag\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
@ -1391,13 +1390,12 @@ BOOL WINAPI ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
LPOVERLAPPED overlapped,
LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
/* FIXME: MS docs say we shouldn't set overlapped->hEvent */
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = 0;
return FILE_ReadFileEx(hFile,buffer,bytesToRead,overlapped,lpCompletionRoutine);
}
static VOID CALLBACK FILE_TimeoutComplete(DWORD status, DWORD count, LPOVERLAPPED ov)
static VOID CALLBACK FILE_OverlappedComplete(DWORD status, DWORD count, LPOVERLAPPED ov)
{
NtSetEvent(ov->hEvent,NULL);
}
@ -1412,7 +1410,7 @@ static BOOL FILE_TimeoutRead(HANDLE hFile, LPVOID buffer, DWORD bytesToRead, LPD
ZeroMemory(&ov, sizeof (OVERLAPPED));
if(STATUS_SUCCESS==NtCreateEvent(&ov.hEvent, SYNCHRONIZE, NULL, 0, 0))
{
if(ReadFileEx(hFile, buffer, bytesToRead, &ov, FILE_TimeoutComplete))
if(ReadFileEx(hFile, buffer, bytesToRead, &ov, FILE_OverlappedComplete))
{
r = GetOverlappedResult(hFile, &ov, bytesRead, TRUE);
}
@ -1442,8 +1440,9 @@ BOOL WINAPI ReadFile( HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
{
case FD_TYPE_OVERLAPPED:
if (unix_handle == -1) return FALSE;
if (!overlapped)
if ( (overlapped==NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
{
TRACE("Overlapped not specified or invalid event flag\n");
close(unix_handle);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
@ -1476,7 +1475,7 @@ BOOL WINAPI ReadFile( HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = result;
if(!FILE_ReadFileEx(hFile, buffer, bytesToRead, overlapped, NULL))
if(!FILE_ReadFileEx(hFile, buffer, bytesToRead, overlapped, FILE_OverlappedComplete))
return FALSE;
/* fail on return, with ERROR_IO_PENDING */
@ -1573,7 +1572,7 @@ BOOL WINAPI WriteFileEx(HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
TRACE("file %d to buf %p num %ld %p func %p stub\n",
hFile, buffer, bytesToWrite, overlapped, lpCompletionRoutine);
if ( (overlapped == NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
if (overlapped == NULL)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
@ -1638,14 +1637,22 @@ BOOL WINAPI WriteFile( HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
if (bytesWritten) *bytesWritten = 0; /* Do this before anything else */
if (!bytesToWrite) return TRUE;
/* this will only have impact if the overlappd structure is specified */
if ( overlapped )
return WriteFileEx(hFile, buffer, bytesToWrite, overlapped, NULL);
unix_handle = FILE_GetUnixHandleType( hFile, GENERIC_WRITE, &type );
switch (type)
{
case FD_TYPE_OVERLAPPED:
if (unix_handle == -1) return FALSE;
if ( (overlapped==NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
{
TRACE("Overlapped not specified or invalid event flag\n");
close(unix_handle);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* FIXME: try write immediately before starting overlapped operation */
return WriteFileEx(hFile, buffer, bytesToWrite, overlapped, FILE_OverlappedComplete);
case FD_TYPE_CONSOLE:
TRACE("%d %s %ld %p %p\n", hFile, debugstr_an(buffer, bytesToWrite), bytesToWrite,
bytesWritten, overlapped );

1
scheduler/synchro.c
View File

@ -70,7 +70,6 @@ static void finish_async(async_private *ovp, DWORD status)
ovp->prev=NULL;
close(ovp->fd);
NtSetEvent(ovp->lpOverlapped->hEvent,NULL);
if(!ovp->completion_func) HeapFree(GetProcessHeap(), 0, ovp);
}