1// Copyright 2013 The Flutter 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#ifndef FLUTTER_FML_LOG_SETTINGS_H_
6#define FLUTTER_FML_LOG_SETTINGS_H_
7
8#include <string>
9
10#include "flutter/fml/log_level.h"
11
12namespace fml {
13
14// Settings which control the behavior of FML logging.
15struct LogSettings {
16 // The minimum logging level.
17 // Anything at or above this level will be logged (if applicable).
18 // Anything below this level will be silently ignored.
19 //
20 // The log level defaults to 0 (LOG_INFO).
21 //
22 // Log messages for FML_VLOG(x) (from flutter/fml/logging.h) are logged
23 // at level -x, so setting the min log level to negative values enables
24 // verbose logging.
25 LogSeverity min_log_level = LOG_INFO;
26};
27
28// Gets the active log settings for the current process.
29void SetLogSettings(const LogSettings& settings);
30
31// Sets the active log settings for the current process.
32LogSettings GetLogSettings();
33
34// Gets the minimum log level for the current process. Never returs a value
35// higher than LOG_FATAL.
36int GetMinLogLevel();
37
38class ScopedSetLogSettings {
39 public:
40 explicit ScopedSetLogSettings(const LogSettings& settings);
41 ~ScopedSetLogSettings();
42
43 private:
44 LogSettings old_settings_;
45};
46
47} // namespace fml
48
49#endif // FLUTTER_FML_LOG_SETTINGS_H_
50

source code of flutter_engine/flutter/fml/log_settings.h