text: /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
  
  /*  Fluent Bit
   *  ==========
   *  Copyright (C) 2015-2022 The Fluent Bit Authors
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  #ifndef FLB_PROMETHEUS_EXPORTER_H
  #define FLB_PROMETHEUS_EXPORTER_H
  
  #include <fluent-bit/flb_output_plugin.h>
  #include <fluent-bit/flb_hash.h>
  
  /* Plugin context */
  struct prom_exporter {
      void *http;
  
      /* hash table for metrics reported */
      struct flb_hash *ht_metrics;
  
      /* add timestamp to every metric */
      int add_timestamp;
  
      /* config reader for 'add_label' */
      struct mk_list *add_labels;
  
      /* internal labels ready to append */
      struct mk_list kv_labels;
  
      /* instance context */
      struct flb_output_instance *ins;
  };
  
  #endif
  