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 void parseStringPair(const char *Name, const char *Value);
31
32private:
33 static const u32 MaxFlags = 20;
34 struct Flag {
35 const char *Name;
36 const char *Desc;
37 FlagType Type;
38 void *Var;
39 } Flags[MaxFlags];
40
41 u32 NumberOfFlags = 0;
42 const char *Buffer = nullptr;
43 uptr Pos = 0;
44
45 void reportFatalError(const char *Error);
46 void skipWhitespace();
47 void parseFlags();
48 void parseFlag();
49 bool runHandler(const char *Name, const char *Value, char Sep);
50};
51
52void reportUnrecognizedFlags();
53
54} // namespace scudo
55
56#endif // SCUDO_FLAGS_PARSER_H_
57