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source: webrtc/talk/base/diskcache_win32.cc @ 0:4bda6873e34c

pub_scrub_3792 tip
Last change on this file since 0:4bda6873e34c was 0:4bda6873e34c, checked in by Michael Prittie <mprittie@…>, 6 years ago

Scrubbed password for publication.

File size: 3.5 KB
Line 
1/*
2 * libjingle
3 * Copyright 2006, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "talk/base/win32.h"
29#include <shellapi.h>
30#include <shlobj.h>
31#include <tchar.h>
32
33#include <time.h>
34
35#include "talk/base/common.h"
36#include "talk/base/diskcache.h"
37#include "talk/base/pathutils.h"
38#include "talk/base/stream.h"
39#include "talk/base/stringencode.h"
40#include "talk/base/stringutils.h"
41
42#include "talk/base/diskcache_win32.h"
43
44namespace talk_base {
45
46bool DiskCacheWin32::InitializeEntries() {
47  // Note: We could store the cache information in a separate file, for faster
48  // initialization.  Figuring it out empirically works, too.
49
50  std::wstring path16 = ToUtf16(folder_);
51  path16.append(1, '*');
52
53  WIN32_FIND_DATA find_data;
54  HANDLE find_handle = FindFirstFile(path16.c_str(), &find_data);
55  if (find_handle != INVALID_HANDLE_VALUE) {
56    do {
57      size_t index;
58      std::string id;
59      if (!FilenameToId(ToUtf8(find_data.cFileName), &id, &index))
60        continue;
61
62      Entry* entry = GetOrCreateEntry(id, true);
63      entry->size += find_data.nFileSizeLow;
64      total_size_ += find_data.nFileSizeLow;
65      entry->streams = _max(entry->streams, index + 1);
66      FileTimeToUnixTime(find_data.ftLastWriteTime, &entry->last_modified);
67
68    } while (FindNextFile(find_handle, &find_data));
69
70    FindClose(find_handle);
71  }
72
73  return true;
74}
75
76bool DiskCacheWin32::PurgeFiles() {
77  std::wstring path16 = ToUtf16(folder_);
78  path16.append(1, '*');
79  path16.append(1, '\0');
80
81  SHFILEOPSTRUCT file_op = { 0 };
82  file_op.wFunc = FO_DELETE;
83  file_op.pFrom = path16.c_str();
84  file_op.fFlags = FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT
85                   | FOF_NORECURSION | FOF_FILESONLY;
86  if (0 != SHFileOperation(&file_op)) {
87    LOG_F(LS_ERROR) << "Couldn't delete cache files";
88    return false;
89  }
90
91  return true;
92}
93
94bool DiskCacheWin32::FileExists(const std::string& filename) const {
95  DWORD result = ::GetFileAttributes(ToUtf16(filename).c_str());
96  return (INVALID_FILE_ATTRIBUTES != result);
97}
98
99bool DiskCacheWin32::DeleteFile(const std::string& filename) const {
100  return ::DeleteFile(ToUtf16(filename).c_str()) != 0;
101}
102
103}
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