logging.h

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// Copyright (C) 2013-2020 iFunFactory Inc. All Rights Reserved.
//
// This work is confidential and proprietary to iFunFactory Inc. and
// must not be used, disclosed, copied, or distributed without the prior
// consent of iFunFactory Inc.

#ifndef INCLUDE_FUNAPI_SYSTEM_LOGGING_H_
#define INCLUDE_FUNAPI_SYSTEM_LOGGING_H_

#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/uuid/uuid.hpp>
#include <funapi/types.h>
#include <glog/logging.h>

#include <vector>
#include <string>


#define LOW_CONCAT_HELPER(a, b) a##b
#define LOW_CONCAT(a, b) LOW_CONCAT_HELPER(a, b)
#define LOW_COUNT1 LOW_CONCAT(log_count1_, __LINE__)
#define LOW_COUNT2 LOW_CONCAT(log_count2_, __LINE__)
#define LOW_LAST LOW_CONCAT(log_last_, __LINE__)
#define LOW_GET_CTXT LOW_CONCAT(get_ctxt_, __LINE__)


#define LOG_ONCE_WHILE(lv, interval) \
  static size_t LOW_COUNT1 = 0; \
  static size_t LOW_COUNT2 = 0; \
  static MonotonicClock::Value LOW_LAST = 0; \
  static function<bool()> LOW_GET_CTXT = []( ) { \
    ++LOW_COUNT1; \
    if ((MonotonicClock::Now() - LOW_LAST) >= (interval * 1000 * 1000)) { \
      LOW_LAST = MonotonicClock::Now(); \
      LOW_COUNT2 = LOW_COUNT1; \
      LOW_COUNT1 = 0; \
      return true; \
    } \
    return false; \
  }; \
  LOG_IF(lv, LOW_GET_CTXT()) << "(#" << LOW_COUNT2 << ") "


namespace fun {

enum LogColumnCppType {
  LCT_BOOL,
  LCT_TIME_T,
  LCT_WALLCLOCK_VALUE,
  LCT_DOUBLE,
  LCT_INT64,
  LCT_STRING,
};


typedef std::vector<string> LoggerColumnNames;
typedef std::vector<string> LoggerColumnValues;
typedef std::vector<bool> LoggerColumnQuotes;
typedef std::vector<LogColumnCppType> LoggerColumnCppTypes;


class FUNAPI_DLL_VISIBILITY LoggerRegistryHelper {
 public:
  LoggerRegistryHelper(const string &activityType,
                       const string &schema,
                       const LoggerColumnNames &columns,
                       const LoggerColumnCppTypes &types,
                       const LoggerColumnQuotes &quotes);
};


FUNAPI_DLL_VISIBILITY
void LogActivity(const string &activityType, const LoggerColumnValues &values);

}  // namespace fun

#endif  // INCLUDE_FUNAPI_SYSTEM_LOGGING_H_