henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 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 | |
| 44 | namespace talk_base { |
| 45 | |
| 46 | bool 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 | |
| 76 | bool 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 | |
| 94 | bool DiskCacheWin32::FileExists(const std::string& filename) const { |
| 95 | DWORD result = ::GetFileAttributes(ToUtf16(filename).c_str()); |
| 96 | return (INVALID_FILE_ATTRIBUTES != result); |
| 97 | } |
| 98 | |
| 99 | bool DiskCacheWin32::DeleteFile(const std::string& filename) const { |
| 100 | return ::DeleteFile(ToUtf16(filename).c_str()) != 0; |
| 101 | } |
| 102 | |
| 103 | } |