125 lines
4.4 KiB
C
125 lines
4.4 KiB
C
/*
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* This file is part of the COMROGUE Operating System for Raspberry Pi
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*
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* Copyright (c) 2013, Eric J. Bowersox / Erbosoft Enterprises
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* All rights reserved.
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*
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* This program is free for commercial and non-commercial use as long as the following conditions are
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* adhered to.
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*
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* Copyright in this file remains Eric J. Bowersox and/or Erbosoft, and as such any copyright notices
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* in the code are not to be removed.
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*
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* Redistribution and use in source and binary forms, with or without modification, are permitted
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* provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this list of conditions and
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* the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
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* the following disclaimer in the documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* "Raspberry Pi" is a trademark of the Raspberry Pi Foundation.
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*/
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#include <comrogue/types.h>
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#include <comrogue/scode.h>
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#include <comrogue/str.h>
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#include <comrogue/connpoint.h>
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#include <comrogue/objhelp.h>
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/*---------------------------------------------
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* IConnectionPoint vtable and implementations
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*---------------------------------------------
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*/
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static UINT32 fixedcp_AddRef(IUnknown *pThis)
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{
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return IUnknown_AddRef(((PFIXEDCPDATA)pThis)->punkOuter);
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}
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static UINT32 fixedcp_Release(IUnknown *pThis)
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{
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return IUnknown_Release(((PFIXEDCPDATA)pThis)->punkOuter);
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}
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static HRESULT fixedcp_GetConnectionInterface(IConnectionPoint *pThis, IID *pIID)
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{
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if (!pIID)
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return E_POINTER;
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StrCopyMem(pIID, ((PFIXEDCPDATA)pThis)->riidConnection, sizeof(IID));
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return S_OK;
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}
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static HRESULT fixedcp_GetConnectionPointContainer(IConnectionPoint *pThis, IConnectionPointContainer *ppCPC)
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{
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register HRESULT rc; /* return from underlying QI */
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rc = IUnknown_QueryInterface(((PFIXEDCPDATA)pThis)->punkOuter, &IID_IConnectionPointContainer, (PPVOID)ppCPC);
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if (rc == E_NOINTERFACE)
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rc = E_UNEXPECTED;
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return rc;
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}
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static HRESULT fixedcp_Advise(IConnectionPoint *pThis, IUnknown *punkSink, UINT32 *puiCookie)
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{
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return E_NOTIMPL; /* TODO */
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}
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static HRESULT fixedcp_Unadvise(IConnectionPoint *pThis, UINT32 uiCookie)
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{
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return E_NOTIMPL; /* TODO */
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}
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static HRESULT fixedcp_EnumConnections(IConnectionPoint *pThis, IEnumConnections **ppEnum)
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{
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return E_NOTIMPL; /* TODO */
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}
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/* VTable for the fixed-size connection point implementation. */
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static const SEG_RODATA struct IConnectionPointVTable vtblFixedCP =
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{
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.QueryInterface = ObjHlpStandardQueryInterface_IConnectionPoint,
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.AddRef = fixedcp_AddRef,
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.Release = fixedcp_Release,
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.GetConnectionInterface = fixedcp_GetConnectionInterface,
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.GetConnectionPointContainer = fixedcp_GetConnectionPointContainer,
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.Advise = fixedcp_Advise,
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.Unadvise = fixedcp_Unadvise,
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.EnumConnections = fixedcp_EnumConnections
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};
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/*-----------------------------------------------
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* Connection point setup and teardown functions
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*-----------------------------------------------
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*/
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void ObjHlpFixedCpSetup(PFIXEDCPDATA pData, PUNKNOWN punkOuter, REFIID riidConnection,
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IUnknown **ppSlots, INT32 nSlots)
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{
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pData->connectionPointInterface.pVTable = &vtblFixedCP;
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pData->punkOuter = punkOuter;
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pData->riidConnection = riidConnection;
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pData->ppSlots = ppSlots;
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pData->ncpSize = 0;
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pData->ncpCapacity = nSlots;
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StrSetMem(ppSlots, 0, nSlots * sizeof(IUnknown *));
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}
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void ObjHlpFixedCpTeardown(PFIXEDCPDATA pData)
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{
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register INT32 i; /* loop counter */
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for (i = 0; i < pData->ncpCapacity; i++)
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if (pData->ppSlots[i])
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IUnknown_Release(pData->ppSlots[i]);
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StrSetMem(pData, 0, sizeof(FIXEDCPDATA));
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}
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