26 struct SampleEntry {  struct
27   int pid;
28   int tid;
29   const char* thread_comm;
30   std::string dso_name;
31   uint64_t map_start_addr;
32   size_t sample_count;
34   SampleEntry(int pid, int tid, const char* thread_comm, const std::string& dso_name,  in SampleEntry()  function
77   SampleEntry* CreateCallChainSample(const ThreadEntry*, const SampleEntry*, uint64_t, bool,  in CreateCallChainSample()
78                                      const std::vector<SampleEntry*>&, const int&) override {  in CreateCallChainSample()
81   const ThreadEntry* GetThreadOfSample(SampleEntry*) override { return nullptr; }  in GetThreadOfSample()  argument