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