flags_parser.h revision 360784 
1//===-- flags_parser.h ------------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef SCUDO_FLAGS_PARSER_H_
10#define SCUDO_FLAGS_PARSER_H_
11
12#include "report.h"
13#include "string_utils.h"
14
15#include <stddef.h>
16
17namespace scudo {
18
19enum class FlagType : u8 {
20  FT_bool,
21  FT_int,
22};
23
24class FlagParser {
25public:
26  void registerFlag(const char *Name, const char *Desc, FlagType Type,
27                    void *Var);
28  void parseString(const char *S);
29  void printFlagDescriptions();
30
31private:
32  static const u32 MaxFlags = 16;
33  struct Flag {
34    const char *Name;
35    const char *Desc;
36    FlagType Type;
37    void *Var;
38  } Flags[MaxFlags];
39
40  u32 NumberOfFlags = 0;
41  const char *Buffer = nullptr;
42  uptr Pos = 0;
43
44  void reportFatalError(const char *Error);
45  void skipWhitespace();
46  void parseFlags();
47  void parseFlag();
48  bool runHandler(const char *Name, const char *Value);
49};
50
51void reportUnrecognizedFlags();
52
53} // namespace scudo
54
55#endif // SCUDO_FLAGS_PARSER_H_
56