text: #include <time.h>
  
  #include "web_buffer.h"
  #include "rrd.h"
  
  #ifndef NETDATA_RRD2JSON_H
  #define NETDATA_RRD2JSON_H 1
  
  #define HOSTNAME_MAX 1024
  extern char *hostname;
  
  // type of JSON generations
  #define DATASOURCE_INVALID -1
  #define DATASOURCE_JSON 0
  #define DATASOURCE_DATATABLE_JSON 1
  #define DATASOURCE_DATATABLE_JSONP 2
  #define DATASOURCE_SSV 3
  #define DATASOURCE_CSV 4
  #define DATASOURCE_JSONP 5
  #define DATASOURCE_TSV 6
  #define DATASOURCE_HTML 7
  #define DATASOURCE_JS_ARRAY 8
  #define DATASOURCE_SSV_COMMA 9
  #define DATASOURCE_CSV_JSON_ARRAY 10
  
  #define DATASOURCE_FORMAT_JSON "json"
  #define DATASOURCE_FORMAT_DATATABLE_JSON "datatable"
  #define DATASOURCE_FORMAT_DATATABLE_JSONP "datasource"
  #define DATASOURCE_FORMAT_JSONP "jsonp"
  #define DATASOURCE_FORMAT_SSV "ssv"
  #define DATASOURCE_FORMAT_CSV "csv"
  #define DATASOURCE_FORMAT_TSV "tsv"
  #define DATASOURCE_FORMAT_HTML "html"
  #define DATASOURCE_FORMAT_JS_ARRAY "array"
  #define DATASOURCE_FORMAT_SSV_COMMA "ssvcomma"
  #define DATASOURCE_FORMAT_CSV_JSON_ARRAY "csvjsonarray"
  
  #define GROUP_AVERAGE	0
  #define GROUP_MAX 		1
  #define GROUP_SUM		2
  
  #define RRDR_OPTION_NONZERO 		0x00000001 // don't output dimensions will just zero values
  #define RRDR_OPTION_REVERSED		0x00000002 // output the rows in reverse order (oldest to newest)
  #define RRDR_OPTION_ABSOLUTE 		0x00000004 // values positive, for DATASOURCE_SSV before summing
  #define RRDR_OPTION_MIN2MAX	 		0x00000008 // for DATASOURCE_SSV, out max - min, instead of sum
  #define RRDR_OPTION_SECONDS			0x00000010 // output seconds, instead of dates
  #define RRDR_OPTION_MILLISECONDS	0x00000020 // output milliseconds, instead of dates
  #define RRDR_OPTION_NULL2ZERO		0x00000040 // do not show nulls, convert them to zeros
  #define RRDR_OPTION_OBJECTSROWS		0x00000080 // each row of values should be an object, not an array
  #define RRDR_OPTION_GOOGLE_JSON		0x00000100 // comply with google JSON/JSONP specs
  #define RRDR_OPTION_JSON_WRAP		0x00000200 // wrap the response in a JSON header with info about the result
  #define RRDR_OPTION_LABEL_QUOTES 	0x00000400 // in CSV output, wrap header labels in double quotes
  #define RRDR_OPTION_PERCENTAGE		0x00000800 // give values as percentage of total
  
  extern void rrd_stats_api_v1_chart(RRDSET *st, BUFFER *wb);
  extern void rrd_stats_api_v1_charts(BUFFER *wb);
  
  extern unsigned long rrd_stats_one_json(RRDSET *st, char *options, BUFFER *wb);
  
  extern void rrd_stats_graph_json(RRDSET *st, char *options, BUFFER *wb);
  
  extern void rrd_stats_all_json(BUFFER *wb);
  
  extern time_t rrd_stats_json(int type, RRDSET *st, BUFFER *wb, long entries_to_show, long group, int group_method, time_t after, time_t before, int only_non_zero);
  
  extern int rrd2format(RRDSET *st, BUFFER *out, BUFFER *dimensions, uint32_t format, long points, long long after, long long before, int group_method, uint32_t options, time_t *latest_timestamp);
  
  
  #endif /* NETDATA_RRD2JSON_H */
  