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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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