2 * Queue Manager (BITS) File Enumerator
4 * Copyright 2007, 2008 Google (Roy Shea, Dan Hipschman)
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.
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.
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
22 #include "wine/debug.h"
24 WINE_DEFAULT_DEBUG_CHANNEL(qmgr);
26 static void EnumBackgroundCopyFilesDestructor(EnumBackgroundCopyFilesImpl *This)
30 for(i = 0; i < This->numFiles; i++)
31 IBackgroundCopyFile_Release(This->files[i]);
33 HeapFree(GetProcessHeap(), 0, This->files);
34 HeapFree(GetProcessHeap(), 0, This);
37 static ULONG WINAPI BITS_IEnumBackgroundCopyFiles_AddRef(
38 IEnumBackgroundCopyFiles* iface)
40 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
41 return InterlockedIncrement(&This->ref);
44 static HRESULT WINAPI BITS_IEnumBackgroundCopyFiles_QueryInterface(
45 IEnumBackgroundCopyFiles* iface,
49 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
50 TRACE("IID: %s\n", debugstr_guid(riid));
52 if (IsEqualGUID(riid, &IID_IUnknown)
53 || IsEqualGUID(riid, &IID_IEnumBackgroundCopyFiles))
55 *ppvObject = &This->lpVtbl;
56 BITS_IEnumBackgroundCopyFiles_AddRef(iface);
64 static ULONG WINAPI BITS_IEnumBackgroundCopyFiles_Release(
65 IEnumBackgroundCopyFiles* iface)
67 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
68 ULONG ref = InterlockedDecrement(&This->ref);
71 EnumBackgroundCopyFilesDestructor(This);
76 /* Return reference to one or more files in the file enumerator */
77 static HRESULT WINAPI BITS_IEnumBackgroundCopyFiles_Next(
78 IEnumBackgroundCopyFiles* iface,
80 IBackgroundCopyFile **rgelt,
83 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
86 IBackgroundCopyFile *file;
88 /* Despite documented behavior, Windows (tested on XP) is not verifying
89 that the caller set pceltFetched to zero. No check here. */
91 fetched = min(celt, This->numFiles - This->indexFiles);
93 *pceltFetched = fetched;
96 /* We need to initialize this array if the caller doesn't request
97 the length because length_is will default to celt. */
98 for (i = 0; i < celt; i++)
101 /* pceltFetched can only be NULL if celt is 1 */
106 /* Fill in the array of objects */
107 for (i = 0; i < fetched; i++)
109 file = This->files[This->indexFiles++];
110 IBackgroundCopyFile_AddRef(file);
114 return fetched == celt ? S_OK : S_FALSE;
117 /* Skip over one or more files in the file enumerator */
118 static HRESULT WINAPI BITS_IEnumBackgroundCopyFiles_Skip(
119 IEnumBackgroundCopyFiles* iface,
122 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
124 if (celt > This->numFiles - This->indexFiles)
126 This->indexFiles = This->numFiles;
130 This->indexFiles += celt;
134 static HRESULT WINAPI BITS_IEnumBackgroundCopyFiles_Reset(
135 IEnumBackgroundCopyFiles* iface)
137 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
138 This->indexFiles = 0;
142 static HRESULT WINAPI BITS_IEnumBackgroundCopyFiles_Clone(
143 IEnumBackgroundCopyFiles* iface,
144 IEnumBackgroundCopyFiles **ppenum)
146 FIXME("Not implemented\n");
150 static HRESULT WINAPI BITS_IEnumBackgroundCopyFiles_GetCount(
151 IEnumBackgroundCopyFiles* iface,
154 EnumBackgroundCopyFilesImpl *This = (EnumBackgroundCopyFilesImpl *) iface;
155 *puCount = This->numFiles;
159 static const IEnumBackgroundCopyFilesVtbl BITS_IEnumBackgroundCopyFiles_Vtbl =
161 BITS_IEnumBackgroundCopyFiles_QueryInterface,
162 BITS_IEnumBackgroundCopyFiles_AddRef,
163 BITS_IEnumBackgroundCopyFiles_Release,
164 BITS_IEnumBackgroundCopyFiles_Next,
165 BITS_IEnumBackgroundCopyFiles_Skip,
166 BITS_IEnumBackgroundCopyFiles_Reset,
167 BITS_IEnumBackgroundCopyFiles_Clone,
168 BITS_IEnumBackgroundCopyFiles_GetCount
171 HRESULT EnumBackgroundCopyFilesConstructor(LPVOID *ppObj, IBackgroundCopyJob2 *iCopyJob)
173 EnumBackgroundCopyFilesImpl *This;
174 BackgroundCopyFileImpl *file;
175 BackgroundCopyJobImpl *job = (BackgroundCopyJobImpl *) iCopyJob;
178 TRACE("%p, %p)\n", ppObj, job);
180 This = HeapAlloc(GetProcessHeap(), 0, sizeof *This);
182 return E_OUTOFMEMORY;
184 This->lpVtbl = &BITS_IEnumBackgroundCopyFiles_Vtbl;
187 /* Create array of files */
188 This->indexFiles = 0;
189 EnterCriticalSection(&job->cs);
190 This->numFiles = list_count(&job->files);
192 if (This->numFiles > 0)
194 This->files = HeapAlloc(GetProcessHeap(), 0,
195 This->numFiles * sizeof This->files[0]);
198 LeaveCriticalSection(&job->cs);
199 HeapFree(GetProcessHeap(), 0, This);
200 return E_OUTOFMEMORY;
205 LIST_FOR_EACH_ENTRY(file, &job->files, BackgroundCopyFileImpl, entryFromJob)
207 file->lpVtbl->AddRef((IBackgroundCopyFile *) file);
208 This->files[i] = (IBackgroundCopyFile *) file;
211 LeaveCriticalSection(&job->cs);
213 *ppObj = &This->lpVtbl;