| 1 | /* $Id: iunk.c,v 1.3 2001-09-05 13:36:37 bird Exp $ */
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| 2 | /*
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| 3 | * An implementation of IUnknown.
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| 4 | *
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| 5 | * hidenori@a2.ctktv.ne.jp
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| 6 | */
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| 7 |
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| 8 | #include "config.h"
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| 9 |
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| 10 | #include "windef.h"
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| 11 | #include "winerror.h"
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| 12 | #include "wine/obj_base.h"
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| 13 |
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| 14 | #include "debugtools.h"
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| 15 | DEFAULT_DEBUG_CHANNEL(quartz);
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| 16 |
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| 17 | #include "quartz_private.h"
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| 18 | #include "iunk.h"
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| 19 |
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| 20 |
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| 21 | static HRESULT WINAPI
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| 22 | IUnknown_fnQueryInterface(IUnknown* iface,REFIID riid,LPVOID *ppobj)
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| 23 | {
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| 24 | ICOM_THIS(QUARTZ_IUnkImpl,iface);
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| 25 | size_t ofs;
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| 26 | DWORD dwIndex;
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| 27 |
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| 28 | TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
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| 29 |
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| 30 | if ( ppobj == NULL )
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| 31 | return E_POINTER;
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| 32 | *ppobj = NULL;
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| 33 |
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| 34 | ofs = 0;
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| 35 |
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| 36 | if ( IsEqualGUID( &IID_IUnknown, riid ) )
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| 37 | {
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| 38 | TRACE("IID_IUnknown - returns inner object.\n");
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| 39 | }
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| 40 | else
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| 41 | {
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| 42 | for ( dwIndex = 0; dwIndex < This->dwEntries; dwIndex++ )
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| 43 | {
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| 44 | if ( IsEqualGUID( This->pEntries[dwIndex].piid, riid ) )
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| 45 | {
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| 46 | ofs = This->pEntries[dwIndex].ofsVTPtr;
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| 47 | break;
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| 48 | }
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| 49 | }
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| 50 | if ( dwIndex == This->dwEntries )
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| 51 | {
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| 52 | FIXME("unknown interface: %s\n",debugstr_guid(riid));
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| 53 | return E_NOINTERFACE;
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| 54 | }
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| 55 | }
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| 56 |
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| 57 | *ppobj = (LPVOID)(((char*)This) + ofs);
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| 58 | IUnknown_AddRef((IUnknown*)(*ppobj));
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| 59 |
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| 60 | return S_OK;
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| 61 | }
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| 62 |
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| 63 | static ULONG WINAPI
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| 64 | IUnknown_fnAddRef(IUnknown* iface)
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| 65 | {
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| 66 | ICOM_THIS(QUARTZ_IUnkImpl,iface);
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| 67 |
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| 68 | TRACE("(%p)->()\n",This);
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| 69 |
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| 70 | return ++(This->ref);
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| 71 | }
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| 72 |
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| 73 | static ULONG WINAPI
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| 74 | IUnknown_fnRelease(IUnknown* iface)
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| 75 | {
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| 76 | ICOM_THIS(QUARTZ_IUnkImpl,iface);
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| 77 |
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| 78 | TRACE("(%p)->()\n",This);
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| 79 | if ( (--(This->ref)) > 0 )
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| 80 | return This->ref;
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| 81 |
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| 82 | QUARTZ_FreeObj(This);
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| 83 |
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| 84 | return 0;
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| 85 | }
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| 86 |
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| 87 | static ICOM_VTABLE(IUnknown) iunknown =
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| 88 | {
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| 89 | ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
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| 90 | /* IUnknown fields */
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| 91 | IUnknown_fnQueryInterface,
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| 92 | IUnknown_fnAddRef,
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| 93 | IUnknown_fnRelease,
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| 94 | };
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| 95 |
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| 96 |
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| 97 | void QUARTZ_IUnkInit( QUARTZ_IUnkImpl* pImpl, IUnknown* punkOuter )
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| 98 | {
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| 99 | TRACE("(%p)\n",pImpl);
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| 100 |
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| 101 | ICOM_VTBL(pImpl) = &iunknown;
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| 102 | pImpl->pEntries = NULL;
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| 103 | pImpl->dwEntries = 0;
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| 104 | pImpl->ref = 1;
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| 105 | pImpl->punkControl = (IUnknown*)pImpl;
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| 106 |
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| 107 | /* for delegation. */
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| 108 | if ( punkOuter != NULL )
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| 109 | pImpl->punkControl = punkOuter;
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| 110 | }
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| 111 |
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