blob: aee07dbe8a3975f566c4ab34d85778d594e78d49 (
plain)
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
|
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SRC_TRACED_PROBES_FILESYSTEM_FILE_SCANNER_H_
#define SRC_TRACED_PROBES_FILESYSTEM_FILE_SCANNER_H_
#include <string>
#include <vector>
#include "perfetto/base/task_runner.h"
#include "perfetto/ext/base/scoped_file.h"
#include "perfetto/ext/base/weak_ptr.h"
#include "perfetto/ext/traced/data_source_types.h"
namespace perfetto {
class FileScanner {
public:
class Delegate {
public:
virtual bool OnInodeFound(BlockDeviceID,
Inode,
const std::string&,
InodeFileMap_Entry_Type) = 0;
virtual void OnInodeScanDone() = 0;
virtual ~Delegate();
};
FileScanner(std::vector<std::string> root_directories,
Delegate* delegate,
uint32_t scan_interval_ms,
uint32_t scan_steps);
// Ctor when only the blocking version of Scan is used.
FileScanner(std::vector<std::string> root_directories, Delegate* delegate);
FileScanner(const FileScanner&) = delete;
FileScanner& operator=(const FileScanner&) = delete;
void Scan(base::TaskRunner* task_runner);
void Scan();
private:
void NextDirectory();
void Step();
void Steps(uint32_t n);
bool Done();
Delegate* delegate_;
const uint32_t scan_interval_ms_;
const uint32_t scan_steps_;
std::vector<std::string> queue_;
base::ScopedDir current_dir_handle_;
std::string current_directory_;
BlockDeviceID current_block_device_id_;
base::WeakPtrFactory<FileScanner> weak_factory_; // Keep last.
};
} // namespace perfetto
#endif // SRC_TRACED_PROBES_FILESYSTEM_FILE_SCANNER_H_
|
