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      1 //===-- sanitizer_suppressions.h --------------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // Suppression parsing/matching code.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 #ifndef SANITIZER_SUPPRESSIONS_H
     14 #define SANITIZER_SUPPRESSIONS_H
     15 
     16 #include "sanitizer_common.h"
     17 #include "sanitizer_atomic.h"
     18 #include "sanitizer_internal_defs.h"
     19 
     20 namespace __sanitizer {
     21 
     22 struct Suppression {
     23   Suppression() { internal_memset(this, 0, sizeof(*this)); }
     24   const char *type;
     25   char *templ;
     26   atomic_uint32_t hit_count;
     27   uptr weight;
     28 };
     29 
     30 class SuppressionContext {
     31  public:
     32   // Create new SuppressionContext capable of parsing given suppression types.
     33   SuppressionContext(const char *supprression_types[],
     34                      int suppression_types_num);
     35 
     36   void ParseFromFile(const char *filename);
     37   void Parse(const char *str);
     38 
     39   bool Match(const char *str, const char *type, Suppression **s);
     40   uptr SuppressionCount() const;
     41   bool HasSuppressionType(const char *type) const;
     42   const Suppression *SuppressionAt(uptr i) const;
     43   void GetMatched(InternalMmapVector<Suppression *> *matched);
     44 
     45  private:
     46   static const int kMaxSuppressionTypes = 32;
     47   const char **const suppression_types_;
     48   const int suppression_types_num_;
     49 
     50   InternalMmapVector<Suppression> suppressions_;
     51   bool has_suppression_type_[kMaxSuppressionTypes];
     52   bool can_parse_;
     53 };
     54 
     55 }  // namespace __sanitizer
     56 
     57 #endif  // SANITIZER_SUPPRESSIONS_H
     58