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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "net/disk_cache/cache_util.h" | |
6 | |
7 #include <windows.h> | |
8 | |
9 #include "base/files/file_path.h" | |
10 #include "base/logging.h" | |
11 #include "base/message_loop/message_loop.h" | |
12 #include "base/win/scoped_handle.h" | |
13 | |
14 namespace disk_cache { | |
15 | |
16 bool MoveCache(const base::FilePath& from_path, const base::FilePath& to_path) { | |
17 // I don't want to use the shell version of move because if something goes | |
18 // wrong, that version will attempt to move file by file and fail at the end. | |
19 if (!MoveFileEx(from_path.value().c_str(), to_path.value().c_str(), 0)) { | |
20 LOG(ERROR) << "Unable to move the cache: " << GetLastError(); | |
21 return false; | |
22 } | |
23 return true; | |
24 } | |
25 | |
26 bool DeleteCacheFile(const base::FilePath& name) { | |
27 // We do a simple delete, without ever falling back to SHFileOperation, as the | |
28 // version from base does. | |
29 if (!DeleteFile(name.value().c_str())) { | |
30 // There is an error, but we share delete access so let's see if there is a | |
31 // file to open. Note that this code assumes that we have a handle to the | |
32 // file at all times (even now), so nobody can have a handle that prevents | |
33 // us from opening the file again (unless it was deleted). | |
34 DWORD sharing = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE; | |
35 DWORD access = SYNCHRONIZE; | |
36 base::win::ScopedHandle file(CreateFile( | |
37 name.value().c_str(), access, sharing, NULL, OPEN_EXISTING, 0, NULL)); | |
38 if (file.IsValid()) | |
39 return false; | |
40 | |
41 // Most likely there is no file to open... and that's what we wanted. | |
42 } | |
43 return true; | |
44 } | |
45 | |
46 } // namespace disk_cache | |
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