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 18 #include "webrtc/base/common.h" 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 = _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 } 87
