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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
// 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 "base/files/file_util_proxy.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/files/file_util.h"
#include "base/location.h"
#include "base/task_runner.h"
#include "base/task_runner_util.h"
namespace base {
namespace {
void CallWithTranslatedParameter(const FileUtilProxy::StatusCallback& callback,
bool value) {
DCHECK(!callback.is_null());
callback.Run(value ? File::FILE_OK : File::FILE_ERROR_FAILED);
}
class GetFileInfoHelper {
public:
GetFileInfoHelper()
: error_(File::FILE_OK) {}
void RunWorkForFilePath(const FilePath& file_path) {
if (!PathExists(file_path)) {
error_ = File::FILE_ERROR_NOT_FOUND;
return;
}
if (!GetFileInfo(file_path, &file_info_))
error_ = File::FILE_ERROR_FAILED;
}
void Reply(const FileUtilProxy::GetFileInfoCallback& callback) {
if (!callback.is_null()) {
callback.Run(error_, file_info_);
}
}
private:
File::Error error_;
File::Info file_info_;
DISALLOW_COPY_AND_ASSIGN(GetFileInfoHelper);
};
File::Error DeleteAdapter(const FilePath& file_path, bool recursive) {
if (!PathExists(file_path)) {
return File::FILE_ERROR_NOT_FOUND;
}
if (!base::DeleteFile(file_path, recursive)) {
if (!recursive && !base::IsDirectoryEmpty(file_path)) {
return File::FILE_ERROR_NOT_EMPTY;
}
return File::FILE_ERROR_FAILED;
}
return File::FILE_OK;
}
} // namespace
// Retrieves the information about a file. It is invalid to pass NULL for the
// callback.
bool FileUtilProxy::GetFileInfo(
TaskRunner* task_runner,
const FilePath& file_path,
const GetFileInfoCallback& callback) {
GetFileInfoHelper* helper = new GetFileInfoHelper;
return task_runner->PostTaskAndReply(
FROM_HERE,
Bind(&GetFileInfoHelper::RunWorkForFilePath,
Unretained(helper), file_path),
Bind(&GetFileInfoHelper::Reply, Owned(helper), callback));
}
// static
bool FileUtilProxy::DeleteFile(TaskRunner* task_runner,
const FilePath& file_path,
bool recursive,
const StatusCallback& callback) {
return base::PostTaskAndReplyWithResult(
task_runner, FROM_HERE,
Bind(&DeleteAdapter, file_path, recursive),
callback);
}
// static
bool FileUtilProxy::Touch(
TaskRunner* task_runner,
const FilePath& file_path,
const Time& last_access_time,
const Time& last_modified_time,
const StatusCallback& callback) {
return base::PostTaskAndReplyWithResult(
task_runner,
FROM_HERE,
Bind(&TouchFile, file_path, last_access_time, last_modified_time),
Bind(&CallWithTranslatedParameter, callback));
}
} // namespace base
|
