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