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.
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <errno.h>
  #include <unistd.h>
  
  #define INCREMENT_SIZE 1000
  #define MAX_SIZE 10
  
  struct confentry {
    const char *key;
    const char *value;
  };
  
  
  struct configuration {
    int size;
    struct confentry **confdetails;
  };
  
  FILE *LOGFILE;
  
  #ifdef HADOOP_CONF_DIR
    #define CONF_FILE_PATTERN "%s/taskcontroller.cfg"
  #else
    #define CONF_FILE_PATTERN "%s/conf/taskcontroller.cfg"
  #endif
  
  extern struct configuration config;
  //configuration file contents
  #ifndef HADOOP_CONF_DIR
    extern char *hadoop_conf_dir;
  #endif
  //method exposed to get the configurations
  const char * get_value(const char* key);
  //method to free allocated configuration
  void free_configurations();
  
  //function to return array of values pointing to the key. Values are
  //comma seperated strings.
  const char ** get_values(const char* key);
  