dlls/dxdiagn/container.c

   1 /*
   2  * IDxDiagContainer Implementation
   3  *
   4  * Copyright 2004 Raphael Junqueira
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  */
  21
  22 #include "config.h"
  23
  24 #define COBJMACROS
  25 #include "dxdiag_private.h"
  26 #include "wine/debug.h"
  27 #include "wine/unicode.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(dxdiag);
  30
  31 static inline IDxDiagContainerImpl *impl_from_IDxDiagContainer(IDxDiagContainer *iface)
  32 {
  33     return CONTAINING_RECORD(iface, IDxDiagContainerImpl, IDxDiagContainer_iface);
  34 }
  35
  36 /* IDxDiagContainer IUnknown parts follow: */
  37 static HRESULT WINAPI IDxDiagContainerImpl_QueryInterface(IDxDiagContainer *iface, REFIID riid,
  38         void **ppobj)
  39 {
  40     IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
  41
  42     if (!ppobj) return E_INVALIDARG;
  43
  44     if (IsEqualGUID(riid, &IID_IUnknown)
  45         || IsEqualGUID(riid, &IID_IDxDiagContainer)) {
  46         IUnknown_AddRef(iface);
  47         *ppobj = This;
  48         return S_OK;
  49     }
  50
  51     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  52     *ppobj = NULL;
  53     return E_NOINTERFACE;
  54 }
  55
  56 static ULONG WINAPI IDxDiagContainerImpl_AddRef(IDxDiagContainer *iface)
  57 {
  58     IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
  59     ULONG refCount = InterlockedIncrement(&This->ref);
  60
  61     TRACE("(%p)->(ref before=%u)\n", This, refCount - 1);
  62
  63     DXDIAGN_LockModule();
  64
  65     return refCount;
  66 }
  67
  68 static ULONG WINAPI IDxDiagContainerImpl_Release(IDxDiagContainer *iface)
  69 {
  70     IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
  71     ULONG refCount = InterlockedDecrement(&This->ref);
  72
  73     TRACE("(%p)->(ref before=%u)\n", This, refCount + 1);
  74
  75     if (!refCount) {
  76         IDxDiagProvider_Release(This->pProv);
  77         HeapFree(GetProcessHeap(), 0, This);
  78     }
  79
  80     DXDIAGN_UnlockModule();
  81
  82     return refCount;
  83 }
  84
  85 /* IDxDiagContainer Interface follow: */
  86 static HRESULT WINAPI IDxDiagContainerImpl_GetNumberOfChildContainers(IDxDiagContainer *iface,
  87         DWORD *pdwCount)
  88 {
  89   IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
  90
  91   TRACE("(%p)\n", iface);
  92   if (NULL == pdwCount) {
  93     return E_INVALIDARG;
  94   }
  95   *pdwCount = This->cont->nSubContainers;
  96   return S_OK;
  97 }
  98
  99 static HRESULT WINAPI IDxDiagContainerImpl_EnumChildContainerNames(IDxDiagContainer *iface,
 100         DWORD dwIndex, LPWSTR pwszContainer, DWORD cchContainer)
 101 {
 102   IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
 103   IDxDiagContainerImpl_Container *p;
 104   DWORD i = 0;
 105
 106   TRACE("(%p, %u, %p, %u)\n", iface, dwIndex, pwszContainer, cchContainer);
 107
 108   if (NULL == pwszContainer || 0 == cchContainer) {
 109     return E_INVALIDARG;
 110   }
 111
 112   LIST_FOR_EACH_ENTRY(p, &This->cont->subContainers, IDxDiagContainerImpl_Container, entry)
 113   {
 114     if (dwIndex == i) {
 115       TRACE("Found container name %s, copying string\n", debugstr_w(p->contName));
 116       lstrcpynW(pwszContainer, p->contName, cchContainer);
 117       return (cchContainer <= strlenW(p->contName)) ?
 118               DXDIAG_E_INSUFFICIENT_BUFFER : S_OK;
 119     }
 120     ++i;
 121   }
 122
 123   TRACE("Failed to find container name at specified index\n");
 124   *pwszContainer = '\0';
 125   return E_INVALIDARG;
 126 }
 127
 128 static HRESULT IDxDiagContainerImpl_GetChildContainerInternal(IDxDiagContainerImpl_Container *cont, LPCWSTR pwszContainer, IDxDiagContainerImpl_Container **subcont) {
 129   IDxDiagContainerImpl_Container *p;
 130
 131   LIST_FOR_EACH_ENTRY(p, &cont->subContainers, IDxDiagContainerImpl_Container, entry)
 132   {
 133     if (0 == lstrcmpW(p->contName, pwszContainer)) {
 134       *subcont = p;
 135       return S_OK;
 136     }
 137   }
 138
 139   return E_INVALIDARG;
 140 }
 141
 142 static HRESULT WINAPI IDxDiagContainerImpl_GetChildContainer(IDxDiagContainer *iface,
 143         LPCWSTR pwszContainer, IDxDiagContainer **ppInstance)
 144 {
 145   IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
 146   IDxDiagContainerImpl_Container *pContainer = This->cont;
 147   LPWSTR tmp, orig_tmp;
 148   INT tmp_len;
 149   WCHAR* cur;
 150   HRESULT hr = E_INVALIDARG;
 151
 152   TRACE("(%p, %s, %p)\n", iface, debugstr_w(pwszContainer), ppInstance);
 153
 154   if (NULL == ppInstance || NULL == pwszContainer) {
 155     return E_INVALIDARG;
 156   }
 157
 158   *ppInstance = NULL;
 159
 160   tmp_len = strlenW(pwszContainer) + 1;
 161   orig_tmp = tmp = HeapAlloc(GetProcessHeap(), 0, tmp_len * sizeof(WCHAR));
 162   if (NULL == tmp) return E_FAIL;
 163   lstrcpynW(tmp, pwszContainer, tmp_len);
 164
 165   cur = strchrW(tmp, '.');
 166   while (NULL != cur) {
 167     *cur = '\0'; /* cut tmp string to '.' */
 168     if (!*(cur + 1)) break; /* Account for a lone terminating period, as in "cont1.cont2.". */
 169     TRACE("Trying to get parent container %s\n", debugstr_w(tmp));
 170     hr = IDxDiagContainerImpl_GetChildContainerInternal(pContainer, tmp, &pContainer);
 171     if (FAILED(hr))
 172       goto on_error;
 173     cur++; /* go after '.' (just replaced by \0) */
 174     tmp = cur;
 175     cur = strchrW(tmp, '.');
 176   }
 177
 178   TRACE("Trying to get container %s\n", debugstr_w(tmp));
 179   hr = IDxDiagContainerImpl_GetChildContainerInternal(pContainer, tmp, &pContainer);
 180   if (SUCCEEDED(hr)) {
 181     hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, pContainer, This->pProv, (void **)ppInstance);
 182     if (SUCCEEDED(hr))
 183         TRACE("Succeeded in getting the container instance\n");
 184   }
 185
 186 on_error:
 187   HeapFree(GetProcessHeap(), 0, orig_tmp);
 188   return hr;
 189 }
 190
 191 static HRESULT WINAPI IDxDiagContainerImpl_GetNumberOfProps(IDxDiagContainer *iface,
 192         DWORD *pdwCount)
 193 {
 194   IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
 195
 196   TRACE("(%p)\n", iface);
 197   if (NULL == pdwCount) {
 198     return E_INVALIDARG;
 199   }
 200   *pdwCount = This->cont->nProperties;
 201   return S_OK;
 202 }
 203
 204 static HRESULT WINAPI IDxDiagContainerImpl_EnumPropNames(IDxDiagContainer *iface, DWORD dwIndex,
 205         LPWSTR pwszPropName, DWORD cchPropName)
 206 {
 207   IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
 208   IDxDiagContainerImpl_Property *p;
 209   DWORD i = 0;
 210
 211   TRACE("(%p, %u, %p, %u)\n", iface, dwIndex, pwszPropName, cchPropName);
 212
 213   if (NULL == pwszPropName || 0 == cchPropName) {
 214     return E_INVALIDARG;
 215   }
 216
 217   LIST_FOR_EACH_ENTRY(p, &This->cont->properties, IDxDiagContainerImpl_Property, entry)
 218   {
 219     if (dwIndex == i) {
 220       TRACE("Found property name %s, copying string\n", debugstr_w(p->propName));
 221       lstrcpynW(pwszPropName, p->propName, cchPropName);
 222       return (cchPropName <= strlenW(p->propName)) ?
 223               DXDIAG_E_INSUFFICIENT_BUFFER : S_OK;
 224     }
 225     ++i;
 226   }
 227
 228   TRACE("Failed to find property name at specified index\n");
 229   return E_INVALIDARG;
 230 }
 231
 232 static HRESULT WINAPI IDxDiagContainerImpl_GetProp(IDxDiagContainer *iface, LPCWSTR pwszPropName,
 233         VARIANT *pvarProp)
 234 {
 235   IDxDiagContainerImpl *This = impl_from_IDxDiagContainer(iface);
 236   IDxDiagContainerImpl_Property *p;
 237
 238   TRACE("(%p, %s, %p)\n", iface, debugstr_w(pwszPropName), pvarProp);
 239
 240   if (NULL == pvarProp || NULL == pwszPropName) {
 241     return E_INVALIDARG;
 242   }
 243
 244   LIST_FOR_EACH_ENTRY(p, &This->cont->properties, IDxDiagContainerImpl_Property, entry)
 245   {
 246     if (0 == lstrcmpW(p->propName, pwszPropName)) {
 247       VariantInit(pvarProp);
 248       return VariantCopy(pvarProp, &p->vProp);
 249     }
 250   }
 251
 252   return E_INVALIDARG;
 253 }
 254
 255 static const IDxDiagContainerVtbl DxDiagContainer_Vtbl =
 256 {
 257     IDxDiagContainerImpl_QueryInterface,
 258     IDxDiagContainerImpl_AddRef,
 259     IDxDiagContainerImpl_Release,
 260     IDxDiagContainerImpl_GetNumberOfChildContainers,
 261     IDxDiagContainerImpl_EnumChildContainerNames,
 262     IDxDiagContainerImpl_GetChildContainer,
 263     IDxDiagContainerImpl_GetNumberOfProps,
 264     IDxDiagContainerImpl_EnumPropNames,
 265     IDxDiagContainerImpl_GetProp
 266 };
 267
 268
 269 HRESULT DXDiag_CreateDXDiagContainer(REFIID riid, IDxDiagContainerImpl_Container *cont, IDxDiagProvider *pProv, LPVOID *ppobj) {
 270   IDxDiagContainerImpl* container;
 271
 272   TRACE("(%s, %p)\n", debugstr_guid(riid), ppobj);
 273
 274   container = HeapAlloc(GetProcessHeap(), 0, sizeof(IDxDiagContainerImpl));
 275   if (NULL == container) {
 276     *ppobj = NULL;
 277     return E_OUTOFMEMORY;
 278   }
 279   container->IDxDiagContainer_iface.lpVtbl = &DxDiagContainer_Vtbl;
 280   container->ref = 0; /* will be inited with QueryInterface */
 281   container->cont = cont;
 282   container->pProv = pProv;
 283   IDxDiagProvider_AddRef(pProv);
 284   return IDxDiagContainerImpl_QueryInterface(&container->IDxDiagContainer_iface, riid, ppobj);
 285 }