text: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.
   */
  
  #pragma once
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #pragma GCC visibility push(default)
  
  typedef enum { pulsar_DEBUG = 0, pulsar_INFO = 1, pulsar_WARN = 2, pulsar_ERROR = 3 } pulsar_logger_level_t;
  
  typedef void (*pulsar_logger)(pulsar_logger_level_t level, const char *file, int line, const char *message,
                                void *ctx);
  
  typedef struct _pulsar_client_configuration pulsar_client_configuration_t;
  typedef struct _pulsar_authentication pulsar_authentication_t;
  
  pulsar_client_configuration_t *pulsar_client_configuration_create();
  
  void pulsar_client_configuration_free(pulsar_client_configuration_t *conf);
  
  /**
   * Set the authentication method to be used with the broker
   *
   * @param authentication the authentication data to use
   */
  void pulsar_client_configuration_set_auth(pulsar_client_configuration_t *conf,
                                            pulsar_authentication_t *authentication);
  
  /**
   * Set timeout on client operations (subscribe, create producer, close, unsubscribe)
   * Default is 30 seconds.
   *
   * @param timeout the timeout after which the operation will be considered as failed
   */
  void pulsar_client_configuration_set_operation_timeout_seconds(pulsar_client_configuration_t *conf,
                                                                 int timeout);
  
  /**
   * @return the client operations timeout in seconds
   */
  int pulsar_client_configuration_get_operation_timeout_seconds(pulsar_client_configuration_t *conf);
  
  /**
   * Set the number of IO threads to be used by the Pulsar client. Default is 1
   * thread.
   *
   * @param threads number of threads
   */
  void pulsar_client_configuration_set_io_threads(pulsar_client_configuration_t *conf, int threads);
  
  /**
   * @return the number of IO threads to use
   */
  int pulsar_client_configuration_get_io_threads(pulsar_client_configuration_t *conf);
  
  /**
   * Set the number of threads to be used by the Pulsar client when delivering messages
   * through message listener. Default is 1 thread per Pulsar client.
   *
   * If using more than 1 thread, messages for distinct MessageListener will be
   * delivered in different threads, however a single MessageListener will always
   * be assigned to the same thread.
   *
   * @param threads number of threads
   */
  void pulsar_client_configuration_set_message_listener_threads(pulsar_client_configuration_t *conf,
                                                                int threads);
  
  /**
   * @return the number of IO threads to use
   */
  int pulsar_client_configuration_get_message_listener_threads(pulsar_client_configuration_t *conf);
  
  /**
   * Number of concurrent lookup-requests allowed on each broker-connection to prevent overload on broker.
   * <i>(default: 50000)</i> It should be configured with higher value only in case of it requires to
   * produce/subscribe on
   * thousands of topic using created {@link PulsarClient}
   *
   * @param concurrentLookupRequest
   */
  void pulsar_client_configuration_set_concurrent_lookup_request(pulsar_client_configuration_t *conf,
                                                                 int concurrentLookupRequest);
  
  /**
   * @return Get configured total allowed concurrent lookup-request.
   */
  int pulsar_client_configuration_get_concurrent_lookup_request(pulsar_client_configuration_t *conf);
  
  void pulsar_client_configuration_set_logger(pulsar_client_configuration_t *conf, pulsar_logger logger,
                                              void *ctx);
  
  void pulsar_client_configuration_set_use_tls(pulsar_client_configuration_t *conf, int useTls);
  
  int pulsar_client_configuration_is_use_tls(pulsar_client_configuration_t *conf);
  
  void pulsar_client_configuration_set_tls_trust_certs_file_path(pulsar_client_configuration_t *conf,
                                                                 const char *tlsTrustCertsFilePath);
  
  const char *pulsar_client_configuration_get_tls_trust_certs_file_path(pulsar_client_configuration_t *conf);
  
  void pulsar_client_configuration_set_tls_allow_insecure_connection(pulsar_client_configuration_t *conf,
                                                                     int allowInsecure);
  
  int pulsar_client_configuration_is_tls_allow_insecure_connection(pulsar_client_configuration_t *conf);
  
  /*
   * Initialize stats interval in seconds. Stats are printed and reset after every 'statsIntervalInSeconds'.
   * Set to 0 in order to disable stats collection.
   */
  void pulsar_client_configuration_set_stats_interval_in_seconds(pulsar_client_configuration_t *conf,
                                                                 const unsigned int interval);
  
  /*
   * Get the stats interval set in the client.
   */
  const unsigned int pulsar_client_configuration_get_stats_interval_in_seconds(
      pulsar_client_configuration_t *conf);
  
  #pragma GCC visibility pop
  
  #ifdef __cplusplus
  }
  #endif
  