111 lines
2.3 KiB
C++
111 lines
2.3 KiB
C++
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/*++
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Copyright (c) 1998 - 2000 Microsoft Corporation
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Module Name:
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emio.cpp
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Abstract:
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Contains:
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High-level Event Manager routines for asynchronous I/O
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Environment:
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User Mode - Win32
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History:
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1. 14-Feb-2000 -- File creation (based on Ilya Kleyman (ilyak)
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previous work by AjayCh)
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--*/
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#include "stdafx.h"
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/*++
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Routine Description:
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Called when asynchronous send, receive or accept completes
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Arguments:
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Status - status of the operation being completed
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BytesTransferred - number of bytes transferred
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Overlapped - internal data structure
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Return Values:
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None
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Notes:
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Callback
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--*/
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static void WINAPI EventMgrIoCompletionCallback (
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IN DWORD Status,
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IN DWORD BytesTransferred,
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IN LPOVERLAPPED Overlapped)
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{
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PIOContext IoContext;
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IoContext = (PIOContext) Overlapped;
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CALL_BRIDGE& CallBridge = IoContext->pOvProcessor->GetCallBridge();
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switch (IoContext -> reqType) {
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case EMGR_OV_IO_REQ_ACCEPT:
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HandleAcceptCompletion ((PAcceptContext) IoContext, Status);
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break;
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case EMGR_OV_IO_REQ_SEND:
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HandleSendCompletion ((PSendRecvContext) IoContext, BytesTransferred, Status);
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break;
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case EMGR_OV_IO_REQ_RECV:
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HandleRecvCompletion ((PSendRecvContext) IoContext, BytesTransferred, Status);
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break;
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default:
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// This should never happen
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DebugF(_T("H323: Unknown I/O completed: %d.\n"), IoContext -> reqType);
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_ASSERTE(0);
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break;
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}
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CallBridge.Release ();
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}
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/*++
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Routine Description:
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Designates a routine to be called when asynchrounous send, receive or accept completes
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Arguments:
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sock - socket handle to which a routine is being bound
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Return Values:
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Win32 error code
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Notes:
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Callback
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--*/
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HRESULT EventMgrBindIoHandle (SOCKET sock)
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{
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DWORD Result;
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if (BindIoCompletionCallback ((HANDLE) sock, EventMgrIoCompletionCallback, 0))
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return S_OK;
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else {
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Result = GetLastError ();
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DebugF (_T("H323: Failed to bind i/o completion callback.\n"));
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return HRESULT_FROM_WIN32 (Result);
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}
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}
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