Class StackTraceImplBase

backward.hpp:728–772

};

class StackTraceImplBase {
public:
  StackTraceImplBase()
      : _thread_id(0), _skip(0), _context(nullptr), _error_addr(nullptr) {}

  size_t thread_id() const { return _thread_id; }

  void skip_n_firsts(size_t n) { _skip = n; }

protected:
  void load_thread_info() {
#ifdef BACKWARD_SYSTEM_LINUX
#ifndef __ANDROID__
    _thread_id = static_cast<size_t>(syscall(SYS_gettid));
#else
    _thread_id = static_cast<size_t>(gettid());
#endif
    if (_thread_id == static_cast<size_t>(getpid())) {
      // If the thread is the main one, let's hide that.
      // I like to keep little secret sometimes.
      _thread_id = 0;
    }
#elif defined(BACKWARD_SYSTEM_DARWIN)
    _thread_id = reinterpret_cast<size_t>(pthread_self());
    if (pthread_main_np() == 1) {
      // If the thread is the main one, let's hide that.
      _thread_id = 0;
    }
#endif
  }

  void set_context(void *context) { _context = context; }
  void *context() const { return _context; }

  void set_error_addr(void *error_addr) { _error_addr = error_addr; }
  void *error_addr() const { return _error_addr; }

  size_t skip_n_firsts() const { return _skip; }

private:
  size_t _thread_id;
  size_t _skip;
  void *_context;
  void *_error_addr;
};

class StackTraceImplHolder : public StackTraceImplBase {
public: