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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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