10b57cec5SDimitry Andric //===-- flags_parser.h ------------------------------------------*- C++ -*-===//
20b57cec5SDimitry Andric //
30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
60b57cec5SDimitry Andric //
70b57cec5SDimitry Andric //===----------------------------------------------------------------------===//
80b57cec5SDimitry Andric 
90b57cec5SDimitry Andric #ifndef SCUDO_FLAGS_PARSER_H_
100b57cec5SDimitry Andric #define SCUDO_FLAGS_PARSER_H_
110b57cec5SDimitry Andric 
120b57cec5SDimitry Andric #include "report.h"
130b57cec5SDimitry Andric #include "string_utils.h"
140b57cec5SDimitry Andric 
150b57cec5SDimitry Andric #include <stddef.h>
160b57cec5SDimitry Andric 
170b57cec5SDimitry Andric namespace scudo {
180b57cec5SDimitry Andric 
190b57cec5SDimitry Andric enum class FlagType : u8 {
200b57cec5SDimitry Andric   FT_bool,
210b57cec5SDimitry Andric   FT_int,
220b57cec5SDimitry Andric };
230b57cec5SDimitry Andric 
240b57cec5SDimitry Andric class FlagParser {
250b57cec5SDimitry Andric public:
260b57cec5SDimitry Andric   void registerFlag(const char *Name, const char *Desc, FlagType Type,
270b57cec5SDimitry Andric                     void *Var);
280b57cec5SDimitry Andric   void parseString(const char *S);
290b57cec5SDimitry Andric   void printFlagDescriptions();
305f757f3fSDimitry Andric   void parseStringPair(const char *Name, const char *Value);
310b57cec5SDimitry Andric 
320b57cec5SDimitry Andric private:
33fe6060f1SDimitry Andric   static const u32 MaxFlags = 20;
340b57cec5SDimitry Andric   struct Flag {
350b57cec5SDimitry Andric     const char *Name;
360b57cec5SDimitry Andric     const char *Desc;
370b57cec5SDimitry Andric     FlagType Type;
380b57cec5SDimitry Andric     void *Var;
390b57cec5SDimitry Andric   } Flags[MaxFlags];
400b57cec5SDimitry Andric 
410b57cec5SDimitry Andric   u32 NumberOfFlags = 0;
420b57cec5SDimitry Andric   const char *Buffer = nullptr;
430b57cec5SDimitry Andric   uptr Pos = 0;
440b57cec5SDimitry Andric 
450b57cec5SDimitry Andric   void reportFatalError(const char *Error);
460b57cec5SDimitry Andric   void skipWhitespace();
470b57cec5SDimitry Andric   void parseFlags();
480b57cec5SDimitry Andric   void parseFlag();
495f757f3fSDimitry Andric   bool runHandler(const char *Name, const char *Value, char Sep);
500b57cec5SDimitry Andric };
510b57cec5SDimitry Andric 
520b57cec5SDimitry Andric void reportUnrecognizedFlags();
530b57cec5SDimitry Andric 
540b57cec5SDimitry Andric } // namespace scudo
550b57cec5SDimitry Andric 
560b57cec5SDimitry Andric #endif // SCUDO_FLAGS_PARSER_H_
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