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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#include <xplatform.h>
#include <oleauto.h>
#include <algorithm>
#include <platformdefines.h>
struct BlittableRecord
{
int a;
};
class BlittableRecordInfo : public IRecordInfo
{
public:
HRESULT STDMETHODCALLTYPE GetField(PVOID pvData, LPCOLESTR szFieldName, VARIANT* pvarField)
{
if (pvData == nullptr || pvarField == nullptr)
{
return E_INVALIDARG;
}
BlittableRecord* pData = (BlittableRecord*)pvData;
if (TP_wcmp_s(szFieldName, W("a")) == 0)
{
VariantClear(pvarField);
V_VT(pvarField) = VT_I4;
V_I4(pvarField) = pData->a;
return S_OK;
}
return E_INVALIDARG;
}
HRESULT STDMETHODCALLTYPE GetFieldNames(ULONG* pcNames, BSTR* rgBstrNames)
{
if (pcNames == nullptr)
{
return E_INVALIDARG;
}
if (rgBstrNames == nullptr)
{
*pcNames = 1;
return S_OK;
}
if (*pcNames == 0)
{
return S_OK;
}
rgBstrNames[0] = TP_SysAllocString(W("a"));
for(size_t i = 1; i < *pcNames; i++)
{
rgBstrNames[i] = nullptr;
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetFieldNoCopy(
PVOID pvData,
LPCOLESTR szFieldName,
VARIANT *pvarField,
PVOID *ppvDataCArray
)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE GetGuid(GUID *pguid)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE GetName(BSTR* pbstrName)
{
*pbstrName = TP_SysAllocString(W("BlittableRecord"));
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetSize(ULONG* pcbSize)
{
*pcbSize = sizeof(BlittableRecord);
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetTypeInfo(ITypeInfo** ppTypeInfo)
{
return TYPE_E_INVALIDSTATE;
}
BOOL STDMETHODCALLTYPE IsMatchingType(IRecordInfo* pRecordInfo)
{
return pRecordInfo == this;
}
HRESULT STDMETHODCALLTYPE PutField(
ULONG wFlags,
PVOID pvData,
LPCOLESTR szFieldName,
VARIANT *pvarField
)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE PutFieldNoCopy(
ULONG wFlags,
PVOID pvData,
LPCOLESTR szFieldName,
VARIANT *pvarField
)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE RecordClear(PVOID pvExisting)
{
return S_OK;
}
HRESULT STDMETHODCALLTYPE RecordCopy(PVOID pvExisting, PVOID pvNew)
{
((BlittableRecord*)pvNew)->a = ((BlittableRecord*)pvExisting)->a;
return S_OK;
}
PVOID STDMETHODCALLTYPE RecordCreate()
{
return CoreClrAlloc(sizeof(BlittableRecord));
}
HRESULT STDMETHODCALLTYPE RecordCreateCopy(
PVOID pvSource,
PVOID *ppvDest
)
{
*ppvDest = RecordCreate();
return RecordCopy(pvSource, *ppvDest);
}
HRESULT STDMETHODCALLTYPE RecordDestroy(PVOID pvRecord)
{
CoreClrFree(pvRecord);
return S_OK;
}
HRESULT STDMETHODCALLTYPE RecordInit(PVOID pvNew)
{
((BlittableRecord*)pvNew)->a = 0;
return S_OK;
}
ULONG STDMETHODCALLTYPE AddRef()
{
return ++refCount;
}
ULONG STDMETHODCALLTYPE Release()
{
return --refCount;
}
HRESULT STDMETHODCALLTYPE QueryInterface(const IID& riid, void** ppvObject)
{
if (riid == __uuidof(IRecordInfo))
{
*ppvObject = static_cast<IRecordInfo*>(this);
}
else if (riid == __uuidof(IUnknown))
{
*ppvObject = static_cast<IUnknown*>(this);
}
else
{
*ppvObject = nullptr;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
private:
ULONG refCount;
} s_BlittableRecordInfo;
struct NonBlittableRecord
{
BOOL b;
};
class NonBlittableRecordInfo : public IRecordInfo
{
public:
HRESULT STDMETHODCALLTYPE GetField(PVOID pvData, LPCOLESTR szFieldName, VARIANT* pvarField)
{
if (pvData == nullptr || pvarField == nullptr)
{
return E_INVALIDARG;
}
NonBlittableRecord* pData = (NonBlittableRecord*)pvData;
if (TP_wcmp_s(szFieldName, W("b")) == 0)
{
VariantClear(pvarField);
V_VT(pvarField) = VT_BOOL;
V_BOOL(pvarField) = pData->b == TRUE ? VARIANT_TRUE : VARIANT_FALSE;
return S_OK;
}
return E_INVALIDARG;
}
HRESULT STDMETHODCALLTYPE GetFieldNames(ULONG* pcNames, BSTR* rgBstrNames)
{
if (pcNames == nullptr)
{
return E_INVALIDARG;
}
if (rgBstrNames == nullptr)
{
*pcNames = 1;
return S_OK;
}
if (*pcNames == 0)
{
return S_OK;
}
rgBstrNames[0] = TP_SysAllocString(W("b"));
for(size_t i = 1; i < *pcNames; i++)
{
rgBstrNames[i] = nullptr;
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetFieldNoCopy(
PVOID pvData,
LPCOLESTR szFieldName,
VARIANT *pvarField,
PVOID *ppvDataCArray
)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE GetGuid(GUID *pguid)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE GetName(BSTR* pbstrName)
{
*pbstrName = TP_SysAllocString(W("NonBlittableRecord"));
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetSize(ULONG* pcbSize)
{
*pcbSize = sizeof(BlittableRecord);
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetTypeInfo(ITypeInfo** ppTypeInfo)
{
return TYPE_E_INVALIDSTATE;
}
BOOL STDMETHODCALLTYPE IsMatchingType(IRecordInfo* pRecordInfo)
{
return pRecordInfo == this;
}
HRESULT STDMETHODCALLTYPE PutField(
ULONG wFlags,
PVOID pvData,
LPCOLESTR szFieldName,
VARIANT *pvarField
)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE PutFieldNoCopy(
ULONG wFlags,
PVOID pvData,
LPCOLESTR szFieldName,
VARIANT *pvarField
)
{
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE RecordClear(PVOID pvExisting)
{
return S_OK;
}
HRESULT STDMETHODCALLTYPE RecordCopy(PVOID pvExisting, PVOID pvNew)
{
((NonBlittableRecord*)pvNew)->b = ((NonBlittableRecord*)pvExisting)->b;
return S_OK;
}
PVOID STDMETHODCALLTYPE RecordCreate()
{
return CoreClrAlloc(sizeof(NonBlittableRecord));
}
HRESULT STDMETHODCALLTYPE RecordCreateCopy(
PVOID pvSource,
PVOID *ppvDest
)
{
*ppvDest = RecordCreate();
return RecordCopy(pvSource, *ppvDest);
}
HRESULT STDMETHODCALLTYPE RecordDestroy(PVOID pvRecord)
{
CoreClrFree(pvRecord);
return S_OK;
}
HRESULT STDMETHODCALLTYPE RecordInit(PVOID pvNew)
{
((NonBlittableRecord*)pvNew)->b = FALSE;
return S_OK;
}
ULONG STDMETHODCALLTYPE AddRef()
{
return ++refCount;
}
ULONG STDMETHODCALLTYPE Release()
{
return --refCount;
}
HRESULT STDMETHODCALLTYPE QueryInterface(const IID& riid, void** ppvObject)
{
if (riid == __uuidof(IRecordInfo))
{
*ppvObject = static_cast<IRecordInfo*>(this);
}
else if (riid == __uuidof(IUnknown))
{
*ppvObject = static_cast<IUnknown*>(this);
}
else
{
*ppvObject = nullptr;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
private:
ULONG refCount;
} s_NonBlittableRecordInfo;
extern "C" DLL_EXPORT SAFEARRAY* STDMETHODCALLTYPE CreateSafeArrayOfRecords(BlittableRecord records[], int numRecords)
{
SAFEARRAYBOUND bounds[1] = {
{numRecords, 0}
};
SAFEARRAY* arr = SafeArrayCreateEx(VT_RECORD, 1, bounds, &s_BlittableRecordInfo);
memcpy(arr->pvData, records, numRecords * sizeof(BlittableRecord));
return arr;
}
extern "C" DLL_EXPORT SAFEARRAY* STDMETHODCALLTYPE CreateSafeArrayOfNonBlittableRecords(NonBlittableRecord records[], int numRecords)
{
SAFEARRAYBOUND bounds[1] = {
{numRecords, 0}
};
SAFEARRAY* arr = SafeArrayCreateEx(VT_RECORD, 1, bounds, &s_NonBlittableRecordInfo);
memcpy(arr->pvData, records, numRecords * sizeof(NonBlittableRecord));
return arr;
}
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