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
InitializeEntries()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
PurgeFiles()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
FileExists(const std::string & filename) const77 bool DiskCacheWin32::FileExists(const std::string& filename) const {
78 DWORD result = ::GetFileAttributes(ToUtf16(filename).c_str());
79 return (INVALID_FILE_ATTRIBUTES != result);
80 }
81
DeleteFile(const std::string & filename) const82 bool DiskCacheWin32::DeleteFile(const std::string& filename) const {
83 return ::DeleteFile(ToUtf16(filename).c_str()) != 0;
84 }
85
86 }
87