135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
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/*++
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Copyright (C) 1996-2001 Microsoft Corporation
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Module Name:
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Abstract:
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History:
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--*/
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#ifndef __MSMQHDLR_H__
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#define __MSMQHDLR_H__
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#include <unk.h>
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#include <wmimsg.h>
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#include <comutl.h>
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#include <msgsig.h>
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#include "msmqcomn.h"
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/**************************************************************************
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CMsgMsmqHandler - The message handler encapsulates the actual MSMQ
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message structure, all of the memory associated with it, performing the
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actual receive to MSMQ and delivering the message to the user's SendReceive
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message sink.
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***************************************************************************/
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class CMsgMsmqHandler : public CUnk
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{
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class XQueueReceiver : CImpl< IWmiMessageQueueReceiver, CMsgMsmqHandler >
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{
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public:
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STDMETHOD(ReceiveMessage)( DWORD dwTimeout,
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PVOID pvCursor,
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DWORD dwAction,
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ITransaction* pTxn )
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{
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return m_pObject->ReceiveMessage( dwTimeout,
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dwAction,
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pvCursor,
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NULL,
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pTxn );
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}
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STDMETHOD(CreateCursor)( PVOID* ppvCursor )
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{
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return m_pObject->CreateCursor( ppvCursor );
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}
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STDMETHOD(DestroyCursor)( PVOID pvCursor )
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{
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return m_pObject->DestroyCursor( pvCursor );
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}
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XQueueReceiver( CMsgMsmqHandler* pObject )
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: CImpl< IWmiMessageQueueReceiver, CMsgMsmqHandler > (pObject) {}
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} m_XQueueReceiver;
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protected:
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CMsmqApi& m_rApi;
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DWORD m_dwFlags;
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MQMSGPROPS m_MsgProps;
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QUEUEHANDLE m_hQueue;
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CWbemPtr<CSignMessage> m_pSign;
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CWbemPtr<IWmiMessageSendReceive> m_pRecv;
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CWbemPtr<IUnknown> m_pContainer; // used to keep a container object alive.
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CMsgMsmqHandler( CMsmqApi& rApi,
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IWmiMessageSendReceive* pRecv,
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QUEUEHANDLE hQueue,
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DWORD dwFlags )
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: m_hQueue(hQueue), m_XQueueReceiver(this),
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m_pRecv(pRecv), m_dwFlags( dwFlags ), m_rApi( rApi )
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{
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ZeroMemory( &m_MsgProps, sizeof(MQMSGPROPS) );
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}
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void* GetInterface( REFIID );
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HRESULT HandleMessage2( ITransaction* pTxn );
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HRESULT HandleMessageAck( HRESULT hr );
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public:
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~CMsgMsmqHandler();
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//
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// Use this if you want the handler to keep its parent container object
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// alive until its demise.
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//
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void SetContainer( IUnknown* pContainer ) { m_pContainer = pContainer; }
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//
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// Receives the current message based on action. After a sucessful
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// return from this call, the message is saved in this object.
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// Subsequent calls to handle message can then be made.
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// Any saved message from a previous call will be overwritten with the
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// new msg. See idl for action values.
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//
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HRESULT ReceiveMessage( DWORD dwTimeout,
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DWORD dwAction,
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PVOID pvCursor,
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LPOVERLAPPED pOverlapped,
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ITransaction* pTxn );
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//
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// Calls the SendReceive() method on the recv callback based on the
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// contents of the message obtained from the last call to Receive.
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//
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HRESULT HandleMessage( ITransaction* pTxn );
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HRESULT CreateCursor( PVOID* ppvCursor );
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HRESULT DestroyCursor( PVOID pvCursor );
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HRESULT CheckBufferResize( HRESULT hr );
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static HRESULT Create( CMsmqApi& rApi,
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IWmiMessageSendReceive* pRecv,
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QUEUEHANDLE hQueue,
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DWORD dwFlags,
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CMsgMsmqHandler** ppHndlr );
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};
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#endif // __MSMQHDLR_H__
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