git.oblomov.eu Git - wine/blob - dlls/quartz/complist.c

   1 /*
   2  * List of components. (for internal use)
   3  *
   4  * Copyright (C) Hidenori TAKESHIMA <hidenori@a2.ctktv.ne.jp>
   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 "config.h"
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winerror.h"
  26 #include "wine/obj_base.h"
  27
  28 #include "wine/debug.h"
  29 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  30
  31 #include "quartz_private.h"
  32 #include "complist.h"
  33
  34
  35
  36 struct QUARTZ_CompList
  37 {
  38         QUARTZ_CompListItem*    pFirst;
  39         QUARTZ_CompListItem*    pLast;
  40         CRITICAL_SECTION                csList;
  41 };
  42
  43 struct QUARTZ_CompListItem
  44 {
  45         IUnknown*       punk;
  46         QUARTZ_CompListItem*    pNext;
  47         QUARTZ_CompListItem*    pPrev;
  48         void*   pvData;
  49         DWORD   dwDataLen;
  50 };
  51
  52
  53 QUARTZ_CompList* QUARTZ_CompList_Alloc( void )
  54 {
  55         QUARTZ_CompList*        pList;
  56
  57         pList = (QUARTZ_CompList*)QUARTZ_AllocMem( sizeof(QUARTZ_CompList) );
  58         if ( pList != NULL )
  59         {
  60                 /* construct. */
  61                 pList->pFirst = NULL;
  62                 pList->pLast = NULL;
  63
  64                 InitializeCriticalSection( &pList->csList );
  65         }
  66
  67         return pList;
  68 }
  69
  70 void QUARTZ_CompList_Free( QUARTZ_CompList* pList )
  71 {
  72         QUARTZ_CompListItem*    pCur;
  73         QUARTZ_CompListItem*    pNext;
  74
  75         if ( pList != NULL )
  76         {
  77                 pCur = pList->pFirst;
  78                 while ( pCur != NULL )
  79                 {
  80                         pNext = pCur->pNext;
  81                         if ( pCur->punk != NULL )
  82                                 IUnknown_Release( pCur->punk );
  83                         if ( pCur->pvData != NULL )
  84                                 QUARTZ_FreeMem( pCur->pvData );
  85                         QUARTZ_FreeMem( pCur );
  86                         pCur = pNext;
  87                 }
  88
  89                 DeleteCriticalSection( &pList->csList );
  90
  91                 QUARTZ_FreeMem( pList );
  92         }
  93 }
  94
  95 void QUARTZ_CompList_Lock( QUARTZ_CompList* pList )
  96 {
  97         EnterCriticalSection( &pList->csList );
  98 }
  99
 100 void QUARTZ_CompList_Unlock( QUARTZ_CompList* pList )
 101 {
 102         LeaveCriticalSection( &pList->csList );
 103 }
 104
 105 QUARTZ_CompList* QUARTZ_CompList_Dup(
 106         const QUARTZ_CompList* pList, BOOL fDupData )
 107 {
 108         QUARTZ_CompList*        pNewList;
 109         const QUARTZ_CompListItem*      pCur;
 110         HRESULT hr;
 111
 112         pNewList = QUARTZ_CompList_Alloc();
 113         if ( pNewList == NULL )
 114                 return NULL;
 115
 116         pCur = pList->pFirst;
 117         while ( pCur != NULL )
 118         {
 119                 if ( pCur->punk != NULL )
 120                 {
 121                         if ( fDupData )
 122                                 hr = QUARTZ_CompList_AddComp(
 123                                         pNewList, pCur->punk,
 124                                         pCur->pvData, pCur->dwDataLen );
 125                         else
 126                                 hr = QUARTZ_CompList_AddComp(
 127                                         pNewList, pCur->punk, NULL, 0 );
 128                         if ( FAILED(hr) )
 129                         {
 130                                 QUARTZ_CompList_Free( pNewList );
 131                                 return NULL;
 132                         }
 133                 }
 134                 pCur = pCur->pNext;
 135         }
 136
 137         return pNewList;
 138 }
 139
 140 static QUARTZ_CompListItem* QUARTZ_CompList_AllocComp(
 141         QUARTZ_CompList* pList, IUnknown* punk,
 142         const void* pvData, DWORD dwDataLen )
 143 {
 144         QUARTZ_CompListItem*    pItem;
 145
 146         pItem = (QUARTZ_CompListItem*)QUARTZ_AllocMem( sizeof(QUARTZ_CompListItem) );
 147         if ( pItem == NULL )
 148                 return NULL;
 149
 150         pItem->pvData = NULL;
 151         pItem->dwDataLen = 0;
 152         if ( pvData != NULL )
 153         {
 154                 pItem->pvData = (void*)QUARTZ_AllocMem( dwDataLen );
 155                 if ( pItem->pvData == NULL )
 156                 {
 157                         QUARTZ_FreeMem( pItem );
 158                         return NULL;
 159                 }
 160                 memcpy( pItem->pvData, pvData, dwDataLen );
 161                 pItem->dwDataLen = dwDataLen;
 162         }
 163
 164         pItem->punk = punk; IUnknown_AddRef(punk);
 165
 166         return pItem;
 167 }
 168
 169 HRESULT QUARTZ_CompList_AddComp(
 170         QUARTZ_CompList* pList, IUnknown* punk,
 171         const void* pvData, DWORD dwDataLen )
 172 {
 173         QUARTZ_CompListItem*    pItem;
 174
 175         pItem = QUARTZ_CompList_AllocComp( pList, punk, pvData, dwDataLen );
 176         if ( pItem == NULL )
 177                 return E_OUTOFMEMORY;
 178
 179         if ( pList->pFirst != NULL )
 180                 pList->pFirst->pPrev = pItem;
 181         else
 182                 pList->pLast = pItem;
 183         pItem->pNext = pList->pFirst;
 184         pList->pFirst = pItem;
 185         pItem->pPrev = NULL;
 186
 187         return S_OK;
 188 }
 189
 190 HRESULT QUARTZ_CompList_AddTailComp(
 191         QUARTZ_CompList* pList, IUnknown* punk,
 192         const void* pvData, DWORD dwDataLen )
 193 {
 194         QUARTZ_CompListItem*    pItem;
 195
 196         pItem = QUARTZ_CompList_AllocComp( pList, punk, pvData, dwDataLen );
 197         if ( pItem == NULL )
 198                 return E_OUTOFMEMORY;
 199
 200         if ( pList->pLast != NULL )
 201                 pList->pLast->pNext = pItem;
 202         else
 203                 pList->pFirst = pItem;
 204         pItem->pPrev = pList->pLast;
 205         pList->pLast = pItem;
 206         pItem->pNext = NULL;
 207
 208         return S_OK;
 209 }
 210
 211 HRESULT QUARTZ_CompList_RemoveComp( QUARTZ_CompList* pList, IUnknown* punk )
 212 {
 213         QUARTZ_CompListItem*    pCur;
 214
 215         pCur = QUARTZ_CompList_SearchComp( pList, punk );
 216         if ( pCur == NULL )
 217                 return S_FALSE; /* already removed. */
 218
 219         /* remove from list. */
 220         if ( pCur->pNext != NULL )
 221                 pCur->pNext->pPrev = pCur->pPrev;
 222         else
 223                 pList->pLast = pCur->pPrev;
 224         if ( pCur->pPrev != NULL )
 225                 pCur->pPrev->pNext = pCur->pNext;
 226         else
 227                 pList->pFirst = pCur->pNext;
 228
 229         /* release this item. */
 230         if ( pCur->punk != NULL )
 231                 IUnknown_Release( pCur->punk );
 232         if ( pCur->pvData != NULL )
 233                 QUARTZ_FreeMem( pCur->pvData );
 234         QUARTZ_FreeMem( pCur );
 235
 236         return S_OK;
 237 }
 238
 239 QUARTZ_CompListItem* QUARTZ_CompList_SearchComp(
 240         QUARTZ_CompList* pList, IUnknown* punk )
 241 {
 242         QUARTZ_CompListItem*    pCur;
 243
 244         pCur = pList->pFirst;
 245         while ( pCur != NULL )
 246         {
 247                 if ( pCur->punk == punk )
 248                         return pCur;
 249                 pCur = pCur->pNext;
 250         }
 251
 252         return NULL;
 253 }
 254
 255 QUARTZ_CompListItem* QUARTZ_CompList_SearchData(
 256         QUARTZ_CompList* pList, const void* pvData, DWORD dwDataLen )
 257 {
 258         QUARTZ_CompListItem*    pCur;
 259
 260         pCur = pList->pFirst;
 261         while ( pCur != NULL )
 262         {
 263                 if ( pCur->dwDataLen == dwDataLen &&
 264                      !memcmp( pCur->pvData, pvData, dwDataLen ) )
 265                         return pCur;
 266                 pCur = pCur->pNext;
 267         }
 268
 269         return NULL;
 270 }
 271
 272 QUARTZ_CompListItem* QUARTZ_CompList_GetFirst(
 273         QUARTZ_CompList* pList )
 274 {
 275         return pList->pFirst;
 276 }
 277
 278 QUARTZ_CompListItem* QUARTZ_CompList_GetLast(
 279         QUARTZ_CompList* pList )
 280 {
 281         return pList->pLast;
 282 }
 283
 284 QUARTZ_CompListItem* QUARTZ_CompList_GetNext(
 285         QUARTZ_CompList* pList, QUARTZ_CompListItem* pPrev )
 286 {
 287         return pPrev->pNext;
 288 }
 289
 290 QUARTZ_CompListItem* QUARTZ_CompList_GetPrev(
 291         QUARTZ_CompList* pList, QUARTZ_CompListItem* pNext )
 292 {
 293         return pNext->pPrev;
 294 }
 295
 296 IUnknown* QUARTZ_CompList_GetItemPtr( QUARTZ_CompListItem* pItem )
 297 {
 298         return pItem->punk;
 299 }
 300
 301 const void* QUARTZ_CompList_GetDataPtr( QUARTZ_CompListItem* pItem )
 302 {
 303         return pItem->pvData;
 304 }
 305
 306 DWORD QUARTZ_CompList_GetDataLength( QUARTZ_CompListItem* pItem )
 307 {
 308         return pItem->dwDataLen;
 309 }