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| 1 /* |  | 
| 2  *  Copyright 2006 The WebRTC Project Authors. All rights reserved. |  | 
| 3  * |  | 
| 4  *  Use of this source code is governed by a BSD-style license |  | 
| 5  *  that can be found in the LICENSE file in the root of the source |  | 
| 6  *  tree. An additional intellectual property rights grant can be found |  | 
| 7  *  in the file PATENTS.  All contributing project authors may |  | 
| 8  *  be found in the AUTHORS file in the root of the source tree. |  | 
| 9  */ |  | 
| 10 |  | 
| 11 #include "webrtc/base/win32.h" |  | 
| 12 #include <shellapi.h> |  | 
| 13 #include <shlobj.h> |  | 
| 14 #include <tchar.h> |  | 
| 15 |  | 
| 16 #include <time.h> |  | 
| 17 #include <algorithm> |  | 
| 18 |  | 
| 19 #include "webrtc/base/diskcache.h" |  | 
| 20 #include "webrtc/base/pathutils.h" |  | 
| 21 #include "webrtc/base/stream.h" |  | 
| 22 #include "webrtc/base/stringencode.h" |  | 
| 23 #include "webrtc/base/stringutils.h" |  | 
| 24 |  | 
| 25 #include "webrtc/base/diskcache_win32.h" |  | 
| 26 |  | 
| 27 namespace rtc { |  | 
| 28 |  | 
| 29 bool DiskCacheWin32::InitializeEntries() { |  | 
| 30   // Note: We could store the cache information in a separate file, for faster |  | 
| 31   // initialization.  Figuring it out empirically works, too. |  | 
| 32 |  | 
| 33   std::wstring path16 = ToUtf16(folder_); |  | 
| 34   path16.append(1, '*'); |  | 
| 35 |  | 
| 36   WIN32_FIND_DATA find_data; |  | 
| 37   HANDLE find_handle = FindFirstFile(path16.c_str(), &find_data); |  | 
| 38   if (find_handle != INVALID_HANDLE_VALUE) { |  | 
| 39     do { |  | 
| 40       size_t index; |  | 
| 41       std::string id; |  | 
| 42       if (!FilenameToId(ToUtf8(find_data.cFileName), &id, &index)) |  | 
| 43         continue; |  | 
| 44 |  | 
| 45       Entry* entry = GetOrCreateEntry(id, true); |  | 
| 46       entry->size += find_data.nFileSizeLow; |  | 
| 47       total_size_ += find_data.nFileSizeLow; |  | 
| 48       entry->streams = std::max(entry->streams, index + 1); |  | 
| 49       FileTimeToUnixTime(find_data.ftLastWriteTime, &entry->last_modified); |  | 
| 50 |  | 
| 51     } while (FindNextFile(find_handle, &find_data)); |  | 
| 52 |  | 
| 53     FindClose(find_handle); |  | 
| 54   } |  | 
| 55 |  | 
| 56   return true; |  | 
| 57 } |  | 
| 58 |  | 
| 59 bool DiskCacheWin32::PurgeFiles() { |  | 
| 60   std::wstring path16 = ToUtf16(folder_); |  | 
| 61   path16.append(1, '*'); |  | 
| 62   path16.append(1, '\0'); |  | 
| 63 |  | 
| 64   SHFILEOPSTRUCT file_op = { 0 }; |  | 
| 65   file_op.wFunc = FO_DELETE; |  | 
| 66   file_op.pFrom = path16.c_str(); |  | 
| 67   file_op.fFlags = FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT |  | 
| 68                    | FOF_NORECURSION | FOF_FILESONLY; |  | 
| 69   if (0 != SHFileOperation(&file_op)) { |  | 
| 70     LOG_F(LS_ERROR) << "Couldn't delete cache files"; |  | 
| 71     return false; |  | 
| 72   } |  | 
| 73 |  | 
| 74   return true; |  | 
| 75 } |  | 
| 76 |  | 
| 77 bool DiskCacheWin32::FileExists(const std::string& filename) const { |  | 
| 78   DWORD result = ::GetFileAttributes(ToUtf16(filename).c_str()); |  | 
| 79   return (INVALID_FILE_ATTRIBUTES != result); |  | 
| 80 } |  | 
| 81 |  | 
| 82 bool DiskCacheWin32::DeleteFile(const std::string& filename) const { |  | 
| 83   return ::DeleteFile(ToUtf16(filename).c_str()) != 0; |  | 
| 84 } |  | 
| 85 |  | 
| 86 } |  | 
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