#define WEB_DATA_LENGTH_INCREASE_STEP 1024
typedef struct web_buffer {
- size_t size; // allocation size of buffer
- size_t len; // current data length in buffer
- char *buffer; // the buffer
- uint8_t contenttype;
- uint8_t options;
- time_t date; // the date this content has been generated
+ size_t size; // allocation size of buffer, in bytes
+ size_t len; // current data length in buffer, in bytes
+ char *buffer; // the buffer itself
+ uint8_t contenttype; // the content type of the data in the buffer
+ uint8_t options; // options related to the content
+ time_t date; // the timestamp this content has been generated
+ time_t expires; // the timestamp this content expires
} BUFFER;
// options
#define CT_IMAGE_XICON 19
#define CT_IMAGE_ICNS 20
#define CT_IMAGE_BMP 21
+#define CT_PROMETHEUS 22
+
+#define buffer_cacheable(wb) do { (wb)->options |= WB_CONTENT_CACHEABLE; if((wb)->options & WB_CONTENT_NO_CACHEABLE) (wb)->options &= ~WB_CONTENT_NO_CACHEABLE; } while(0)
+#define buffer_no_cacheable(wb) do { (wb)->options |= WB_CONTENT_NO_CACHEABLE; if((wb)->options & WB_CONTENT_CACHEABLE) (wb)->options &= ~WB_CONTENT_CACHEABLE; (wb)->expires = 0; } while(0)
#define buffer_strlen(wb) ((wb)->len)
extern const char *buffer_tostring(BUFFER *wb);
extern void buffer_free(BUFFER *b);
extern void buffer_increase(BUFFER *b, size_t free_size_required);
-extern void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...) __attribute__ (( format (printf, 3, 4)));
+extern void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...) PRINTFLIKE(3, 4);
extern void buffer_vsprintf(BUFFER *wb, const char *fmt, va_list args);
-extern void buffer_sprintf(BUFFER *wb, const char *fmt, ...) __attribute__ (( format (printf, 2, 3)));
+extern void buffer_sprintf(BUFFER *wb, const char *fmt, ...) PRINTFLIKE(2,3);
+extern void buffer_strcat_htmlescape(BUFFER *wb, const char *txt);
extern void buffer_char_replace(BUFFER *wb, char from, char to);