277 lines
6.5 KiB
C++
277 lines
6.5 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: genforc.cpp
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//
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// Contents: implementation of CEnumeratorTestForC.
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// This class is a subclass of CEnumeratorTest that calls for less
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// Implementation work than CEnumeratorTest but is less flexible.
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//
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// Classes:
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//
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// Functions:
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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//--------------------------------------------------------------------------
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#include "headers.hxx"
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#pragma hdrstop
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//+-------------------------------------------------------------------------
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//
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// Member: CEnumeratorTestForC::CEnumeratorTestForC
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//
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// Synopsis: default constructor
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//
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// Arguments:
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//
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// Returns:
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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CEnumeratorTestForC::CEnumeratorTestForC()
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{
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m_fnVerify = NULL;
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m_fnVerifyAll = NULL;
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m_fnCleanup = NULL;
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CEnumeratorTestForC::Verify
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//
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// Synopsis: Verify one element.
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//
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// Arguments: None
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//
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// Returns: BOOL
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//
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// Algorithm: call the user provided function or defer to the super-class
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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BOOL CEnumeratorTestForC::Verify(void *pv)
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{
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if (m_fnVerify)
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{
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return(m_fnVerify(pv ));
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}
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else
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{
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return(CEnumeratorTest::Verify(pv));
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}
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CEnumeratorTestForC::VerifyAll
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//
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// Synopsis: Verify entire array of returned results.
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//
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// Arguments: None
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//
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// Returns: BOOL
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//
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// Algorithm: call the user provided function or defer to the super-class
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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BOOL CEnumeratorTestForC::VerifyAll(void *pv, LONG cl)
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{
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if (m_fnVerifyAll)
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{
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return(m_fnVerifyAll(pv, cl ));
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}
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else
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{
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return(CEnumeratorTest::VerifyAll(pv, cl));
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}
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CEnumeratorTestForC::CleanUp
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//
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// Synopsis: Default implementation of cleanup
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//
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// Arguments: [pv] - pointer to entry enumerated
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//
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// Algorithm: call the user provided function or do nothing.
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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//--------------------------------------------------------------------------
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void CEnumeratorTestForC::Cleanup(void *pv)
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{
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if (m_fnCleanup)
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{
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m_fnCleanup(pv);
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}
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CEnumeratorTestForC::Create
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//
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// Synopsis: Static create function.
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//
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// Effects:
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//
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// Arguments: [ppEnumtest] -- TestEnumerator object pointer
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// [penum] -- Enumerator Interface cast to void*
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// [ElementSize] -- Size of elements return from next
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// [ElementCount] -- Numer of elements that should be in the enumeration,
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// -1 if unknown.
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// [verify] -- verifies one element.
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// [verifyall] -- verifies an array correctly contains all elements
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// [cleanup] -- Frees any additional memory from next call.
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// [pPassedDebugLog] -- The debug log object, NULL if none.
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//
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// Requires:
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//
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// Returns:
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//
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// Signals:
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//
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// Modifies:
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//
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// Derivation:
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//
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// Algorithm:
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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// Notes: all of the functions passed in are optional and may be NULL.
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//
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//--------------------------------------------------------------------------
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HRESULT CEnumeratorTestForC::Create(
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CEnumeratorTestForC **ppEnumTest,
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void *penum,
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size_t ElementSize,
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LONG ElementCount,
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BOOL (*verify)(void*),
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BOOL (*verifyall)(void*,LONG),
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void (*cleanup)(void*))
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{
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HRESULT hresult = S_OK;
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CEnumeratorTestForC *pEnumTest;
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if ((penum == NULL) || (ppEnumTest == NULL))
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{
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return(E_INVALIDARG);
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}
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*ppEnumTest = NULL;
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//
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// Create the new enumerator object
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//
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pEnumTest = new CEnumeratorTestForC();
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if (pEnumTest == NULL)
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{
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return(E_OUTOFMEMORY);
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}
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//
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// Initialize the enumerator and reset it.
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//
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pEnumTest->m_pEnumTest = (IGenEnum*)penum;
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pEnumTest->m_ElementSize = ElementSize;
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pEnumTest->m_ElementCount = ElementCount;
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pEnumTest->m_fnVerify = verify;
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pEnumTest->m_fnVerifyAll = verifyall;
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pEnumTest->m_fnCleanup = cleanup;
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hresult = pEnumTest->m_pEnumTest->Reset();
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if (hresult != S_OK)
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{
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printf("IEnumnX: Reset failed (%lx)\r\n", hresult );
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delete pEnumTest;
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return(E_FAIL);
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}
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*ppEnumTest = pEnumTest;
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return(hresult);
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}
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//+-------------------------------------------------------------------------
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//
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// Function: TestEnumerator
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//
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// Synopsis: This is the one stop testing for C programs.
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//
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// Arguments: [pv] - pointer to entry enumerated
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//
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// Algorithm: If there is nothing special to free this implementation
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// can be used.
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//
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// History: dd-mmm-yy Author Comment
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// 24-May-94 kennethm author
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//
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//--------------------------------------------------------------------------
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HRESULT TestEnumerator(
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void *penum,
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size_t ElementSize,
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LONG ElementCount,
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BOOL (*verify)(void*),
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BOOL (*verifyall)(void*,LONG),
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void (*cleanup)(void*))
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{
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CEnumeratorTestForC *pEnumTest;
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HRESULT hresult;
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hresult = CEnumeratorTestForC::Create(
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&pEnumTest,
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penum,
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ElementSize,
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ElementCount,
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verify,
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verifyall,
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cleanup);
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if (SUCCEEDED(hresult))
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{
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hresult = pEnumTest->TestAll();
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delete pEnumTest;
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}
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return(hresult);
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}
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