dlls/rpcrt4/cstub.c

   1 /*
   2  * COM stub (CStdStubBuffer) implementation
   3  *
   4  * Copyright 2001 Ove Kåven, TransGaming Technologies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "winerror.h"
  24
  25 #include "objbase.h"
  26
  27 #include "rpcproxy.h"
  28
  29 #include "wine/debug.h"
  30
  31 #include "cpsf.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  34
  35 #define STUB_HEADER(This) (((CInterfaceStubHeader*)((This)->lpVtbl))[-1])
  36
  37 HRESULT WINAPI CStdStubBuffer_Construct(REFIID riid,
  38                                        LPUNKNOWN pUnkServer,
  39                                        CInterfaceStubVtbl *vtbl,
  40                                        LPPSFACTORYBUFFER pPSFactory,
  41                                        LPRPCSTUBBUFFER *ppStub)
  42 {
  43   CStdStubBuffer *This;
  44
  45   TRACE("(%p,%p,%p,%p)\n", pUnkServer, vtbl, pPSFactory, ppStub);
  46   TRACE("iid=%s\n", debugstr_guid(vtbl->header.piid));
  47   TRACE("vtbl=%p\n", &vtbl->Vtbl);
  48
  49   if (!IsEqualGUID(vtbl->header.piid, riid)) {
  50     ERR("IID mismatch during stub creation\n");
  51     return RPC_E_UNEXPECTED;
  52   }
  53
  54   This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(CStdStubBuffer));
  55   if (!This) return E_OUTOFMEMORY;
  56
  57   This->lpVtbl = &vtbl->Vtbl;
  58   This->RefCount = 1;
  59   This->pvServerObject = pUnkServer;
  60   This->pPSFactory = pPSFactory;
  61   *ppStub = (LPRPCSTUBBUFFER)This;
  62
  63   IPSFactoryBuffer_AddRef(pPSFactory);
  64   return S_OK;
  65 }
  66
  67 HRESULT WINAPI CStdStubBuffer_QueryInterface(LPRPCSTUBBUFFER iface,
  68                                             REFIID riid,
  69                                             LPVOID *obj)
  70 {
  71   ICOM_THIS(CStdStubBuffer,iface);
  72   TRACE("(%p)->QueryInterface(%s,%p)\n",This,debugstr_guid(riid),obj);
  73
  74   if (IsEqualGUID(&IID_IUnknown,riid) ||
  75       IsEqualGUID(&IID_IRpcStubBuffer,riid)) {
  76     *obj = This;
  77     This->RefCount++;
  78     return S_OK;
  79   }
  80   return E_NOINTERFACE;
  81 }
  82
  83 ULONG WINAPI CStdStubBuffer_AddRef(LPRPCSTUBBUFFER iface)
  84 {
  85   ICOM_THIS(CStdStubBuffer,iface);
  86   TRACE("(%p)->AddRef()\n",This);
  87   return ++(This->RefCount);
  88 }
  89
  90 ULONG WINAPI NdrCStdStubBuffer_Release(LPRPCSTUBBUFFER iface,
  91                                       LPPSFACTORYBUFFER pPSF)
  92 {
  93   ICOM_THIS(CStdStubBuffer,iface);
  94   TRACE("(%p)->Release()\n",This);
  95
  96   if (!--(This->RefCount)) {
  97     if(This->pvServerObject)
  98         IUnknown_Release(This->pvServerObject);
  99     if(This->pPSFactory)
 100         IPSFactoryBuffer_Release(This->pPSFactory);
 101     HeapFree(GetProcessHeap(),0,This);
 102     return 0;
 103   }
 104   return This->RefCount;
 105 }
 106
 107 HRESULT WINAPI CStdStubBuffer_Connect(LPRPCSTUBBUFFER iface,
 108                                      LPUNKNOWN lpUnkServer)
 109 {
 110   ICOM_THIS(CStdStubBuffer,iface);
 111   TRACE("(%p)->Connect(%p)\n",This,lpUnkServer);
 112   This->pvServerObject = lpUnkServer;
 113   return S_OK;
 114 }
 115
 116 void WINAPI CStdStubBuffer_Disconnect(LPRPCSTUBBUFFER iface)
 117 {
 118   ICOM_THIS(CStdStubBuffer,iface);
 119   TRACE("(%p)->Disconnect()\n",This);
 120   This->pvServerObject = NULL;
 121 }
 122
 123 HRESULT WINAPI CStdStubBuffer_Invoke(LPRPCSTUBBUFFER iface,
 124                                     PRPCOLEMESSAGE pMsg,
 125                                     LPRPCCHANNELBUFFER pChannel)
 126 {
 127   ICOM_THIS(CStdStubBuffer,iface);
 128   DWORD dwPhase = STUB_UNMARSHAL;
 129   TRACE("(%p)->Invoke(%p,%p)\n",This,pMsg,pChannel);
 130
 131   STUB_HEADER(This).pDispatchTable[pMsg->iMethod](iface, pChannel, (PRPC_MESSAGE)pMsg, &dwPhase);
 132   return S_OK;
 133 }
 134
 135 LPRPCSTUBBUFFER WINAPI CStdStubBuffer_IsIIDSupported(LPRPCSTUBBUFFER iface,
 136                                                     REFIID riid)
 137 {
 138   ICOM_THIS(CStdStubBuffer,iface);
 139   TRACE("(%p)->IsIIDSupported(%s)\n",This,debugstr_guid(riid));
 140   return IsEqualGUID(STUB_HEADER(This).piid, riid) ? iface : NULL;
 141 }
 142
 143 ULONG WINAPI CStdStubBuffer_CountRefs(LPRPCSTUBBUFFER iface)
 144 {
 145   ICOM_THIS(CStdStubBuffer,iface);
 146   TRACE("(%p)->CountRefs()\n",This);
 147   return This->RefCount;
 148 }
 149
 150 HRESULT WINAPI CStdStubBuffer_DebugServerQueryInterface(LPRPCSTUBBUFFER iface,
 151                                                        LPVOID *ppv)
 152 {
 153   ICOM_THIS(CStdStubBuffer,iface);
 154   TRACE("(%p)->DebugServerQueryInterface(%p)\n",This,ppv);
 155   return S_OK;
 156 }
 157
 158 void WINAPI CStdStubBuffer_DebugServerRelease(LPRPCSTUBBUFFER iface,
 159                                              LPVOID pv)
 160 {
 161   ICOM_THIS(CStdStubBuffer,iface);
 162   TRACE("(%p)->DebugServerRelease(%p)\n",This,pv);
 163 }