176 lines
3.3 KiB
C++
176 lines
3.3 KiB
C++
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//---------------------------------------------------------------------------
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//
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// Module: gni.h
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//
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// Description: Graph Pin Info Class
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//
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//
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//@@BEGIN_MSINTERNAL
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// Development Team:
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// Mike McLaughlin
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//
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// History: Date Author Comment
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//
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//@@END_MSINTERNAL
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//---------------------------------------------------------------------------
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1996-1999 Microsoft Corporation. All Rights Reserved.
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//
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// Constants and Macros
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//---------------------------------------------------------------------------
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#define GPI_FLAGS_RESERVE_PIN_INSTANCE 0x00000001
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#define GPI_FLAGS_PIN_INSTANCE_RESERVED 0x00000002
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//---------------------------------------------------------------------------
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// Class
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//---------------------------------------------------------------------------
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typedef class CGraphPinInfo : public CListDoubleItem
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{
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friend class CConnectInfo;
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private:
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CGraphPinInfo(
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PPIN_INFO pPinInfo,
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ULONG ulFlags,
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PGRAPH_NODE pGraphNode
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);
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~CGraphPinInfo(
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);
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public:
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static NTSTATUS
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Create(
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PGRAPH_PIN_INFO *ppGraphPinInfo,
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PPIN_INFO pPinInfo,
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ULONG ulFlags,
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PGRAPH_NODE pGraphNode
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);
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ENUMFUNC
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Destroy(
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)
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{
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if(this != NULL) {
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Assert(this);
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ASSERT(cReference > 0);
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if(--cReference == 0) {
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delete this;
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}
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}
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return(STATUS_CONTINUE);
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};
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VOID
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AddRef(
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)
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{
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if(this != NULL) {
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Assert(this);
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++cReference;
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}
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};
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PPIN_INFO
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GetPinInfo(
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)
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{
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Assert(this);
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return(pPinInfo);
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};
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PKSPIN_CINSTANCES
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GetPinInstances(
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)
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{
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Assert(this);
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return(&cPinInstances);
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};
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VOID
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AddPinInstance(
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)
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{
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Assert(this);
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cPinInstances.CurrentCount++;
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};
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VOID
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RemovePinInstance(
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)
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{
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Assert(this);
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cPinInstances.CurrentCount--;
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};
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BOOL
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IsPinInstances(
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)
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{
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Assert(this);
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return(cPinInstances.CurrentCount < cPinInstances.PossibleCount);
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};
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BOOL
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IsPinReserved(
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)
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{
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return(ulFlags & GPI_FLAGS_PIN_INSTANCE_RESERVED);
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};
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BOOL
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IsPossibleInstances(
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)
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{
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if(IsPinReserved()) {
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return(cPinInstances.PossibleCount > 1);
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}
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return(cPinInstances.PossibleCount > 0);
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};
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VOID
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ReservePinInstance(
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)
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{
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Assert(this);
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ulFlags |= GPI_FLAGS_PIN_INSTANCE_RESERVED;
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cPinInstances.CurrentCount = 1;
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};
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#ifdef DEBUG
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ENUMFUNC
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Dump(
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);
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#endif
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private:
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LONG cReference;
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ULONG ulFlags;
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PPIN_INFO pPinInfo;
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KSPIN_CINSTANCES cPinInstances;
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public:
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DefineSignature(0x20495047); // GPI
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} GRAPH_PIN_INFO, *PGRAPH_PIN_INFO;
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//---------------------------------------------------------------------------
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typedef ListDouble<GRAPH_PIN_INFO> LIST_GRAPH_PIN_INFO;
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//---------------------------------------------------------------------------
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typedef ListData<GRAPH_PIN_INFO> LIST_DATA_GRAPH_PIN_INFO;
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//---------------------------------------------------------------------------
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