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/common.h" 20 #include "webrtc/base/diskcache.h" 21 #include "webrtc/base/pathutils.h" 22 #include "webrtc/base/stream.h" 23 #include "webrtc/base/stringencode.h" 24 #include "webrtc/base/stringutils.h" 25 26 #include "webrtc/base/diskcache_win32.h" 27 28 namespace rtc { 29 30 bool DiskCacheWin32::InitializeEntries() { 31 // Note: We could store the cache information in a separate file, for faster 32 // initialization. Figuring it out empirically works, too. 33 34 std::wstring path16 = ToUtf16(folder_); 35 path16.append(1, '*'); 36 37 WIN32_FIND_DATA find_data; 38 HANDLE find_handle = FindFirstFile(path16.c_str(), &find_data); 39 if (find_handle != INVALID_HANDLE_VALUE) { 40 do { 41 size_t index; 42 std::string id; 43 if (!FilenameToId(ToUtf8(find_data.cFileName), &id, &index)) 44 continue; 45 46 Entry* entry = GetOrCreateEntry(id, true); 47 entry->size += find_data.nFileSizeLow; 48 total_size_ += find_data.nFileSizeLow; 49 entry->streams = std::max(entry->streams, index + 1); 50 FileTimeToUnixTime(find_data.ftLastWriteTime, &entry->last_modified); 51 52 } while (FindNextFile(find_handle, &find_data)); 53 54 FindClose(find_handle); 55 } 56 57 return true; 58 } 59 60 bool DiskCacheWin32::PurgeFiles() { 61 std::wstring path16 = ToUtf16(folder_); 62 path16.append(1, '*'); 63 path16.append(1, '\0'); 64 65 SHFILEOPSTRUCT file_op = { 0 }; 66 file_op.wFunc = FO_DELETE; 67 file_op.pFrom = path16.c_str(); 68 file_op.fFlags = FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT 69 | FOF_NORECURSION | FOF_FILESONLY; 70 if (0 != SHFileOperation(&file_op)) { 71 LOG_F(LS_ERROR) << "Couldn't delete cache files"; 72 return false; 73 } 74 75 return true; 76 } 77 78 bool DiskCacheWin32::FileExists(const std::string& filename) const { 79 DWORD result = ::GetFileAttributes(ToUtf16(filename).c_str()); 80 return (INVALID_FILE_ATTRIBUTES != result); 81 } 82 83 bool DiskCacheWin32::DeleteFile(const std::string& filename) const { 84 return ::DeleteFile(ToUtf16(filename).c_str()) != 0; 85 } 86 87 } 88
