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Improve async i/o compatability. lpOverlapped->Internal should hold 

the overlapped transfer status.
This commit is contained in:
Mike McCormack 2000-12-29 19:35:25 +00:00 committed by Alexandre Julliard
parent 775fc630da
commit 1c80bc927e
1 changed files with 11 additions and 4 deletions
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15
dlls/kernel/comm.c
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@ -2794,7 +2794,9 @@ VOID COMM_WaitCommEventService(void **args)
if(buffer) if(buffer)
*buffer = events; *buffer = events;
lpOverlapped->Internal = STATUS_SUCCESS;
SetEvent( lpOverlapped->hEvent); SetEvent( lpOverlapped->hEvent);
CloseHandle(lpOverlapped->InternalHigh);
} }
/*********************************************************************** /***********************************************************************
@ -2836,14 +2838,16 @@ BOOL WINAPI WaitCommEvent(
/* check that the overlapped structure has a valid event flag */ /* check that the overlapped structure has a valid event flag */
if ( (lpov->hEvent==0) || (lpov->hEvent == INVALID_HANDLE_VALUE) ) if ( (lpov->hEvent==0) || (lpov->hEvent == INVALID_HANDLE_VALUE) )
{ {
ERR("Couldn't create Event flag for Overlapped structure\n"); ERR("Couldn't create Event flag for Overlapped structure\n");
SetLastError(ERROR_INVALID_PARAMETER); SetLastError(ERROR_INVALID_PARAMETER);
return FALSE; return FALSE;
} }
lpov->Internal = 0; ResetEvent(lpov->hEvent);
lpov->InternalHigh = hFile;
lpov->Internal = STATUS_PENDING;
lpov->InternalHigh = 0;
lpov->Offset = 0; lpov->Offset = 0;
lpov->OffsetHigh = 0; lpov->OffsetHigh = 0;
@ -2861,7 +2865,7 @@ BOOL WINAPI WaitCommEvent(
ret=server_call( REQ_CREATE_ASYNC ); ret=server_call( REQ_CREATE_ASYNC );
lpov->Internal = req->ov_handle; lpov->InternalHigh = req->ov_handle;
} }
SERVER_END_REQ; SERVER_END_REQ;
@ -2873,6 +2877,9 @@ BOOL WINAPI WaitCommEvent(
return FALSE; return FALSE;
} }
/* activate the overlapped operation */
lpov->Internal = STATUS_PENDING;
/* wait ourselves if the caller didn't give us an overlapped struct */ /* wait ourselves if the caller didn't give us an overlapped struct */
if(!lpOverlapped) if(!lpOverlapped)
{ {