statistics_instance_monitor_impl.hpp

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#include <cassert>
#include "mysql/scheduler/statistics_instance_monitor.h"
#include "mysql/scheduler/statistics_type_traits.h"
 
namespace mysql::scheduler {
 
template <Statistic_allowed_type Type>
void Statistics_instance_monitor::register_stat(const std::string &name,
                                                std::size_t thread_num,
                                                bool enable) {
  auto ins_res = m_registry.insert(
      std::make_pair(name, typename Statistic_type_traits<Type>::type()));
  auto &stat = ins_res.first->second;
  stat.init(thread_num, enable);
}
 
template <Statistic_allowed_type Type>
std::optional<
    std::reference_wrapper<typename Statistic_type_traits<Type>::type>>
Statistics_instance_monitor::find_stat(const std::string &name) {
  auto it = m_registry.find(name);
  if (it != m_registry.end()) {
    return it->second;
  }
  return {};
}
 
template <Statistic_allowed_type Type>
typename Statistic_type_traits<Type>::type &
Statistics_instance_monitor::get_stat(const std::string &name) {
  return m_registry[name];
}
 
}  // namespace mysql::scheduler