332 lines
8.9 KiB
C
332 lines
8.9 KiB
C
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/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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seolib.h
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Abstract:
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This module contains definitions for useful utility
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classes and functions for the Server Extentions Object
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system.
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Author:
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Don Dumitru (dondu@microsoft.com)
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Revision History:
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dondu 05/20/97 Created.
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dondu 07/03/97 Rewrite.
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--*/
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#include "rwnew.h"
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#include "seoexports.h"
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/*
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See the ddrop2 test program for an example of how to
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use the CEventBaseDispatcher class.
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*/
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template<class T, DWORD dwGrowBy=4>
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class CSEOGrowableList {
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public:
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CSEOGrowableList() {
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m_dwCount = 0;
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m_dwAlloc = 0;
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m_apData = NULL;
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};
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~CSEOGrowableList() {
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RemoveAll();
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};
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DWORD Count() {
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return (m_dwCount);
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};
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T* Index(DWORD dwIdx) {
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T *pRet = NULL;
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m_slData.ShareLock();
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if (dwIdx<m_dwCount) {
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pRet = m_apData[dwIdx];
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}
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m_slData.ShareUnlock();
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return pRet;
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};
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T& operator[](DWORD dwIdx) {
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T *pRet = Index(dwIdx);
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_ASSERTE(pRet);
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return *pRet;
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};
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virtual int Compare(T* p1, T* p2) {
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// don't sort by default
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return (1);
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};
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HRESULT Add(T* pNewData) {
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if (!pNewData) {
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return (E_POINTER);
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}
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m_slData.ExclusiveLock();
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// Check if we have space for the new item and allocate more memory if necessary
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if (m_dwCount == m_dwAlloc) {
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// Allocate
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T** pNewData = (T**)realloc(m_apData,sizeof(T*)*(m_dwAlloc+dwGrowBy));
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if (!pNewData) {
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m_slData.ExclusiveUnlock();
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return(E_OUTOFMEMORY);
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}
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m_apData = pNewData;
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m_dwAlloc += dwGrowBy;
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// Clear new memory
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memset(m_apData+m_dwCount,0,sizeof(T*)*dwGrowBy);
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}
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// Now find the position for the new item - we loop from the
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// end to the start so that we can minimize the cost inserting
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// unsorted items
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for (DWORD dwIdx=m_dwCount;dwIdx>0;dwIdx--) {
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int iCmpRes = Compare(pNewData,m_apData[dwIdx-1]);
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if (iCmpRes < 0) {
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continue;
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}
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break;
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}
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// Now move the items past the new item and insert it
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memmove(m_apData+dwIdx+1,m_apData+dwIdx,sizeof(T*)*(m_dwCount-dwIdx));
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m_apData[dwIdx] = pNewData;
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m_dwCount++;
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m_slData.ExclusiveUnlock();
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return (S_OK);
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};
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void Remove(DWORD dwIdx, T **ppT) {
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if (!ppT) {
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_ASSERTE(FALSE);
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return;
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}
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m_slData.ExclusiveLock();
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if (dwIdx >= m_dwCount) {
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_ASSERTE(FALSE);
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*ppT = NULL;
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return;
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}
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*ppT = m_apData[dwIdx];
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memmove(&m_apData[dwIdx],&m_apData[dwIdx+1],sizeof(m_apData[0])*(m_dwCount-dwIdx-1));
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m_dwCount--;
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m_slData.ExclusiveUnlock();
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};
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void Remove(DWORD dwIdx) {
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T *pT;
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Remove(dwIdx,&pT);
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delete pT;
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};
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void RemoveAll() {
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m_slData.ExclusiveLock();
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if (m_apData) {
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for (DWORD dwIdx=0;dwIdx<m_dwCount;dwIdx++) {
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delete m_apData[dwIdx];
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}
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free(m_apData);
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}
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m_dwCount = 0;
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m_dwAlloc = 0;
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m_apData = NULL;
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m_slData.ExclusiveUnlock();
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}
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protected:
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DWORD m_dwCount;
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DWORD m_dwAlloc;
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T** m_apData;
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CShareLockNH m_slData;
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};
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class CEventBaseDispatcher : public IEventDispatcher {
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public:
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CEventBaseDispatcher();
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virtual ~CEventBaseDispatcher();
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class CBinding {
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public:
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CBinding();
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virtual ~CBinding();
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virtual HRESULT Init(IEventBinding *piBinding);
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virtual int Compare(const CBinding& b) const;
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static HRESULT InitRuleEngine(IEventBinding *piBinding, REFIID iidDesired, IUnknown **ppUnkRuleEngine);
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virtual HRESULT InitRuleEngine();
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public:
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BOOL m_bIsValid;
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CComPtr<IEventBinding> m_piBinding;
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BOOL m_bExclusive;
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DWORD m_dwPriority;
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};
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class CBindingList : public CSEOGrowableList<CBinding> {
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public:
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virtual int Compare(CBinding* p1, CBinding* p2);
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};
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class CParams {
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public:
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virtual HRESULT CheckRule(CBinding& bBinding);
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// returns S_OK if the object should be called
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// returns S_FALSE if the object should not be called
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// any other return value causes the object to not be called
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virtual HRESULT CallObject(IEventManager *piManager, CBinding& bBinding);
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// returns S_OK if the object was called
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// returns S_FALSE if the object was called and if no other objects should be called
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// returns FAILED() if the object was not called
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virtual HRESULT CallObject(CBinding& bBinding, IUnknown *pUnkSink);
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// returns S_OK if the object was called
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// returns S_FALSE if the object was called and if no other objects should be called
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// returns FAILED() if the object was not called
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virtual HRESULT Abort();
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// returns S_OK if processing should end
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// returns S_FALSE if processing should continue
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// any other return value causes processing to continue
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};
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virtual HRESULT Dispatcher(REFGUID rguidEventType, CParams *pParams);
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// returns S_OK if at least one sink was called
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// returns S_FALSE if no sinks were called
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// returns FAILED() if some super-catastrophic error happened
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// IEventDispatcher
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public:
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HRESULT STDMETHODCALLTYPE SetContext(REFGUID rguidEventType,
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IEventRouter *piRouter,
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IEventBindings *piBindings);
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public:
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class CETData : public CBindingList {
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public:
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CETData();
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virtual ~CETData();
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public:
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GUID m_guidEventType;
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};
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class CETDataList : public CSEOGrowableList<CETData> {
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public:
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CETData* Find(REFGUID guidEventType);
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};
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virtual HRESULT AllocBinding(REFGUID rguidEventType,
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IEventBinding *pBinding,
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CBinding **ppNewBinding);
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virtual HRESULT AllocETData(REFGUID rguidEventType,
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IEventBindings *piBindings,
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CETData **ppNewETData);
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CComPtr<IEventRouter> m_piRouter;
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CETDataList m_Data;
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CComPtr<IEventManager> m_piEventManager;
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};
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class CEventCreateOptionsBase : public IEventCreateOptions {
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HRESULT STDMETHODCALLTYPE QueryInterface (REFIID riidDesired, LPVOID *ppvResult) {
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if (ppvResult) {
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*ppvResult = NULL;
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}
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if (!ppvResult) {
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return (E_NOTIMPL);
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}
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if (riidDesired == IID_IUnknown) {
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*ppvResult = (IUnknown *) this;
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} else if (riidDesired == IID_IDispatch) {
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*ppvResult = (IDispatch *) this;
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} else if (riidDesired == IID_IEventCreateOptions) {
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*ppvResult = (IEventCreateOptions *) this;
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}
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return ((*ppvResult)?S_OK:E_NOINTERFACE);
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};
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ULONG STDMETHODCALLTYPE AddRef() {
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return (2);
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};
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ULONG STDMETHODCALLTYPE Release() {
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return (1);
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};
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HRESULT STDMETHODCALLTYPE GetTypeInfoCount(unsigned int *) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE GetTypeInfo(unsigned int, LCID, ITypeInfo **) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE GetIDsOfNames(REFIID, LPOLESTR *, unsigned int, LCID, DISPID *) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE Invoke(DISPID, REFIID, LCID, WORD, DISPPARAMS *, VARIANT *, EXCEPINFO *, unsigned int *) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE CreateBindCtx(DWORD, IBindCtx **) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE MkParseDisplayName(IBindCtx *, LPCOLESTR, ULONG *, IMoniker **) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE BindToObject(IMoniker *, IBindCtx *, IMoniker *, REFIID, LPVOID *) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE CoCreateInstance(REFCLSID, IUnknown *, DWORD, REFIID, LPVOID *) {
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return (E_NOTIMPL);
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};
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HRESULT STDMETHODCALLTYPE Init(REFIID riidDesired, IUnknown **ppObject, IEventBinding *pBinding, IUnknown *pInitProps) {
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return (E_NOTIMPL);
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};
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};
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// All these functions return S_OK if they succeed, and S_FALSE if the source type or source is
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// not present. They return FAILED() on various catastrophic errors.
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STDMETHODIMP SEOGetSource(REFGUID rguidSourceType, REFGUID rguidSource, IEventSource **ppSource);
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STDMETHODIMP SEOGetSource(REFGUID rguidSourceType, REFGUID rguidSourceBase, DWORD dwSourceIndex, IEventSource **ppSource);
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STDMETHODIMP SEOGetSource(REFGUID rguidSourceType, LPCSTR pszDisplayName, IEventSource **ppSource);
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STDMETHODIMP SEOGetSource(REFGUID rguidSourceType, LPCSTR pszProperty, DWORD dwValue, IEventSource **ppSource);
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STDMETHODIMP SEOGetSource(REFGUID rguidSourceType, LPCSTR pszProperty, LPCSTR pszValue, IEventSource **ppSource);
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STDMETHODIMP SEOGetRouter(REFGUID rguidSourceType, REFGUID rguidSource, IEventRouter **ppRouter);
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STDMETHODIMP SEOGetRouter(REFGUID rguidSourceType, REFGUID rguidSourceBase, DWORD dwSourceIndex, IEventRouter **ppRouter);
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STDMETHODIMP SEOGetRouter(REFGUID rguidSourceType, LPCSTR pszDisplayName, IEventRouter **ppRouter);
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STDMETHODIMP SEOGetRouter(REFGUID rguidSourceType, LPCSTR pszProperty, DWORD dwValue, IEventRouter **ppRouter);
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STDMETHODIMP SEOGetRouter(REFGUID rguidSourceType, LPCSTR pszProperty, LPCSTR pszValue, IEventRouter **ppRouter);
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STDMETHODIMP SEOGetServiceHandle(IUnknown **ppUnkHandle);
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STDMETHODIMP SEOCreateObject(VARIANT *pvarClass, IEventBinding *pBinding, IUnknown *pInitProperties, REFIID iidDesired, IUnknown **ppUnkObject);
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STDMETHODIMP SEOCreateObjectEx(VARIANT *pvarClass, IEventBinding *pBinding, IUnknown *pInitProperties, REFIID iidDesired, IUnknown *pUnkCreateOptions, IUnknown **ppUnkObject);
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