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 <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winerror.h"
  26
  27 #include "objbase.h"
  28
  29 #include "rpcproxy.h"
  30
  31 #include "wine/debug.h"
  32
  33 #include "cpsf.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  36
  37 #define STUB_HEADER(This) (((CInterfaceStubHeader*)((This)->lpVtbl))[-1])
  38
  39 HRESULT WINAPI CStdStubBuffer_Construct(REFIID riid,
  40                                        LPUNKNOWN pUnkServer,
  41                                        PCInterfaceName name,
  42                                        CInterfaceStubVtbl *vtbl,
  43                                        LPPSFACTORYBUFFER pPSFactory,
  44                                        LPRPCSTUBBUFFER *ppStub)
  45 {
  46   CStdStubBuffer *This;
  47
  48   TRACE("(%p,%p,%p,%p) %s\n", pUnkServer, vtbl, pPSFactory, ppStub, name);
  49   TRACE("iid=%s\n", debugstr_guid(vtbl->header.piid));
  50   TRACE("vtbl=%p\n", &vtbl->Vtbl);
  51
  52   if (!IsEqualGUID(vtbl->header.piid, riid)) {
  53     ERR("IID mismatch during stub creation\n");
  54     return RPC_E_UNEXPECTED;
  55   }
  56
  57   This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(CStdStubBuffer));
  58   if (!This) return E_OUTOFMEMORY;
  59
  60   This->lpVtbl = &vtbl->Vtbl;
  61   This->RefCount = 1;
  62   This->pvServerObject = pUnkServer;
  63   This->pPSFactory = pPSFactory;
  64   *ppStub = (LPRPCSTUBBUFFER)This;
  65
  66   IUnknown_AddRef(This->pvServerObject);
  67   IPSFactoryBuffer_AddRef(pPSFactory);
  68   return S_OK;
  69 }
  70
  71 HRESULT WINAPI CStdStubBuffer_QueryInterface(LPRPCSTUBBUFFER iface,
  72                                             REFIID riid,
  73                                             LPVOID *obj)
  74 {
  75   ICOM_THIS(CStdStubBuffer,iface);
  76   TRACE("(%p)->QueryInterface(%s,%p)\n",This,debugstr_guid(riid),obj);
  77
  78   if (IsEqualGUID(&IID_IUnknown,riid) ||
  79       IsEqualGUID(&IID_IRpcStubBuffer,riid)) {
  80     *obj = This;
  81     This->RefCount++;
  82     return S_OK;
  83   }
  84   return E_NOINTERFACE;
  85 }
  86
  87 ULONG WINAPI CStdStubBuffer_AddRef(LPRPCSTUBBUFFER iface)
  88 {
  89   ICOM_THIS(CStdStubBuffer,iface);
  90   TRACE("(%p)->AddRef()\n",This);
  91   return ++(This->RefCount);
  92 }
  93
  94 ULONG WINAPI NdrCStdStubBuffer_Release(LPRPCSTUBBUFFER iface,
  95                                       LPPSFACTORYBUFFER pPSF)
  96 {
  97   ICOM_THIS(CStdStubBuffer,iface);
  98   TRACE("(%p)->Release()\n",This);
  99
 100   if (!--(This->RefCount)) {
 101     if(This->pvServerObject)
 102         IUnknown_Release(This->pvServerObject);
 103     if(This->pPSFactory)
 104         IPSFactoryBuffer_Release(This->pPSFactory);
 105     HeapFree(GetProcessHeap(),0,This);
 106     return 0;
 107   }
 108   return This->RefCount;
 109 }
 110
 111 HRESULT WINAPI CStdStubBuffer_Connect(LPRPCSTUBBUFFER iface,
 112                                      LPUNKNOWN lpUnkServer)
 113 {
 114   ICOM_THIS(CStdStubBuffer,iface);
 115   TRACE("(%p)->Connect(%p)\n",This,lpUnkServer);
 116   This->pvServerObject = lpUnkServer;
 117   return S_OK;
 118 }
 119
 120 void WINAPI CStdStubBuffer_Disconnect(LPRPCSTUBBUFFER iface)
 121 {
 122   ICOM_THIS(CStdStubBuffer,iface);
 123   TRACE("(%p)->Disconnect()\n",This);
 124   This->pvServerObject = NULL;
 125 }
 126
 127 HRESULT WINAPI CStdStubBuffer_Invoke(LPRPCSTUBBUFFER iface,
 128                                     PRPCOLEMESSAGE pMsg,
 129                                     LPRPCCHANNELBUFFER pChannel)
 130 {
 131   ICOM_THIS(CStdStubBuffer,iface);
 132   DWORD dwPhase = STUB_UNMARSHAL;
 133   TRACE("(%p)->Invoke(%p,%p)\n",This,pMsg,pChannel);
 134
 135   STUB_HEADER(This).pDispatchTable[pMsg->iMethod](iface, pChannel, (PRPC_MESSAGE)pMsg, &dwPhase);
 136   return S_OK;
 137 }
 138
 139 LPRPCSTUBBUFFER WINAPI CStdStubBuffer_IsIIDSupported(LPRPCSTUBBUFFER iface,
 140                                                     REFIID riid)
 141 {
 142   ICOM_THIS(CStdStubBuffer,iface);
 143   TRACE("(%p)->IsIIDSupported(%s)\n",This,debugstr_guid(riid));
 144   return IsEqualGUID(STUB_HEADER(This).piid, riid) ? iface : NULL;
 145 }
 146
 147 ULONG WINAPI CStdStubBuffer_CountRefs(LPRPCSTUBBUFFER iface)
 148 {
 149   ICOM_THIS(CStdStubBuffer,iface);
 150   TRACE("(%p)->CountRefs()\n",This);
 151   return This->RefCount;
 152 }
 153
 154 HRESULT WINAPI CStdStubBuffer_DebugServerQueryInterface(LPRPCSTUBBUFFER iface,
 155                                                        LPVOID *ppv)
 156 {
 157   ICOM_THIS(CStdStubBuffer,iface);
 158   TRACE("(%p)->DebugServerQueryInterface(%p)\n",This,ppv);
 159   return S_OK;
 160 }
 161
 162 void WINAPI CStdStubBuffer_DebugServerRelease(LPRPCSTUBBUFFER iface,
 163                                              LPVOID pv)
 164 {
 165   ICOM_THIS(CStdStubBuffer,iface);
 166   TRACE("(%p)->DebugServerRelease(%p)\n",This,pv);
 167 }