src/web_buffer.h

   1 #include <stdarg.h>
   2 #include <time.h>
   3 #include "storage_number.h"
   4
   5 #ifndef NETDATA_WEB_BUFFER_H
   6 #define NETDATA_WEB_BUFFER_H 1
   7
   8 #define WEB_DATA_LENGTH_INCREASE_STEP 65536
   9
  10 struct web_buffer {
  11         long size;              // allocation size of buffer
  12         long bytes;             // current data length in buffer
  13         long sent;              // current data length sent to output
  14         char *buffer;   // the buffer
  15         int contenttype;
  16         long rbytes;    // if non-zero, the excepted size of ifd
  17         time_t date;    // the date this content has been generated
  18 };
  19
  20 // content-types
  21 #define CT_APPLICATION_JSON                             1
  22 #define CT_TEXT_PLAIN                                   2
  23 #define CT_TEXT_HTML                                    3
  24 #define CT_APPLICATION_X_JAVASCRIPT             4
  25 #define CT_TEXT_CSS                                             5
  26 #define CT_TEXT_XML                                             6
  27 #define CT_APPLICATION_XML                              7
  28 #define CT_TEXT_XSL                                             8
  29 #define CT_APPLICATION_OCTET_STREAM             9
  30 #define CT_APPLICATION_X_FONT_TRUETYPE  10
  31 #define CT_APPLICATION_X_FONT_OPENTYPE  11
  32 #define CT_APPLICATION_FONT_WOFF                12
  33 #define CT_APPLICATION_VND_MS_FONTOBJ   13
  34 #define CT_IMAGE_SVG_XML                                14
  35
  36 #define web_buffer_printf(wb, args...) wb->bytes += snprintf(&wb->buffer[wb->bytes], (wb->size - wb->bytes), ##args)
  37 #define web_buffer_reset(wb) wb->buffer[wb->bytes = 0] = '\0'
  38
  39 void web_buffer_strcpy(struct web_buffer *wb, const char *txt);
  40 int print_calculated_number(char *str, calculated_number value);
  41 void web_buffer_rrd_value(struct web_buffer *wb, calculated_number value);
  42
  43 void web_buffer_jsdate(struct web_buffer *wb, int year, int month, int day, int hours, int minutes, int seconds);
  44
  45 struct web_buffer *web_buffer_create(long size);
  46 void web_buffer_free(struct web_buffer *b);
  47 void web_buffer_increase(struct web_buffer *b, long free_size_required);
  48
  49 #endif /* NETDATA_WEB_BUFFER_H */