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-rw-r--r--src/web_buffer.c400
1 files changed, 0 insertions, 400 deletions
diff --git a/src/web_buffer.c b/src/web_buffer.c
deleted file mode 100644
index 50c76f6d6..000000000
--- a/src/web_buffer.c
+++ /dev/null
@@ -1,400 +0,0 @@
-#include "common.h"
-
-#define BUFFER_OVERFLOW_EOF "EOF"
-
-static inline void buffer_overflow_init(BUFFER *b)
-{
- b->buffer[b->size] = '\0';
- strcpy(&b->buffer[b->size + 1], BUFFER_OVERFLOW_EOF);
-}
-
-#ifdef NETDATA_INTERNAL_CHECKS
-#define buffer_overflow_check(b) _buffer_overflow_check(b, __FILE__, __FUNCTION__, __LINE__)
-#else
-#define buffer_overflow_check(b)
-#endif
-
-static inline void _buffer_overflow_check(BUFFER *b, const char *file, const char *function, const unsigned long line)
-{
- if(b->len > b->size) {
- error("BUFFER: length %zu is above size %zu, at line %lu, at function %s() of file '%s'.", b->len, b->size, line, function, file);
- b->len = b->size;
- }
-
- if(b->buffer[b->size] != '\0' || strcmp(&b->buffer[b->size + 1], BUFFER_OVERFLOW_EOF) != 0) {
- error("BUFFER: detected overflow at line %lu, at function %s() of file '%s'.", line, function, file);
- buffer_overflow_init(b);
- }
-}
-
-
-void buffer_reset(BUFFER *wb)
-{
- buffer_flush(wb);
-
- wb->contenttype = CT_TEXT_PLAIN;
- wb->options = 0;
- wb->date = 0;
- wb->expires = 0;
-
- buffer_overflow_check(wb);
-}
-
-const char *buffer_tostring(BUFFER *wb)
-{
- buffer_need_bytes(wb, 1);
- wb->buffer[wb->len] = '\0';
-
- buffer_overflow_check(wb);
-
- return(wb->buffer);
-}
-
-void buffer_char_replace(BUFFER *wb, char from, char to)
-{
- char *s = wb->buffer, *end = &wb->buffer[wb->len];
-
- while(s != end) {
- if(*s == from) *s = to;
- s++;
- }
-
- buffer_overflow_check(wb);
-}
-
-// This trick seems to give an 80% speed increase in 32bit systems
-// print_calculated_number_llu_r() will just print the digits up to the
-// point the remaining value fits in 32 bits, and then calls
-// print_calculated_number_lu_r() to print the rest with 32 bit arithmetic.
-
-inline char *print_number_lu_r(char *str, unsigned long uvalue) {
- char *wstr = str;
-
- // print each digit
- do *wstr++ = (char)('0' + (uvalue % 10)); while(uvalue /= 10);
- return wstr;
-}
-
-inline char *print_number_llu_r(char *str, unsigned long long uvalue) {
- char *wstr = str;
-
- // print each digit
- do *wstr++ = (char)('0' + (uvalue % 10)); while((uvalue /= 10) && uvalue > (unsigned long long)0xffffffff);
- if(uvalue) return print_number_lu_r(wstr, uvalue);
- return wstr;
-}
-
-inline char *print_number_llu_r_smart(char *str, unsigned long long uvalue) {
-#ifdef ENVIRONMENT32
- if(uvalue > (unsigned long long)0xffffffff)
- str = print_number_llu_r(str, uvalue);
- else
- str = print_number_lu_r(str, uvalue);
-#else
- do *str++ = (char)('0' + (uvalue % 10)); while(uvalue /= 10);
-#endif
-
- return str;
-}
-
-void buffer_print_llu(BUFFER *wb, unsigned long long uvalue)
-{
- buffer_need_bytes(wb, 50);
-
- char *str = &wb->buffer[wb->len];
- char *wstr = str;
-
-#ifdef ENVIRONMENT32
- if(uvalue > (unsigned long long)0xffffffff)
- wstr = print_number_llu_r(wstr, uvalue);
- else
- wstr = print_number_lu_r(wstr, uvalue);
-#else
- do *wstr++ = (char)('0' + (uvalue % 10)); while(uvalue /= 10);
-#endif
-
- // terminate it
- *wstr = '\0';
-
- // reverse it
- char *begin = str, *end = wstr - 1, aux;
- while (end > begin) aux = *end, *end-- = *begin, *begin++ = aux;
-
- // return the buffer length
- wb->len += wstr - str;
-}
-
-void buffer_strcat(BUFFER *wb, const char *txt)
-{
- // buffer_sprintf(wb, "%s", txt);
-
- if(unlikely(!txt || !*txt)) return;
-
- buffer_need_bytes(wb, 1);
-
- char *s = &wb->buffer[wb->len], *start, *end = &wb->buffer[wb->size];
- size_t len = wb->len;
-
- start = s;
- while(*txt && s != end)
- *s++ = *txt++;
-
- len += s - start;
-
- wb->len = len;
- buffer_overflow_check(wb);
-
- if(*txt) {
- debug(D_WEB_BUFFER, "strcat(): increasing web_buffer at position %zu, size = %zu\n", wb->len, wb->size);
- len = strlen(txt);
- buffer_increase(wb, len);
- buffer_strcat(wb, txt);
- }
- else {
- // terminate the string
- // without increasing the length
- buffer_need_bytes(wb, (size_t)1);
- wb->buffer[wb->len] = '\0';
- }
-}
-
-void buffer_strcat_htmlescape(BUFFER *wb, const char *txt)
-{
- while(*txt) {
- switch(*txt) {
- case '&': buffer_strcat(wb, "&"); break;
- case '<': buffer_strcat(wb, "&lt;"); break;
- case '>': buffer_strcat(wb, "&gt;"); break;
- case '"': buffer_strcat(wb, "&quot;"); break;
- case '/': buffer_strcat(wb, "&#x2F;"); break;
- case '\'': buffer_strcat(wb, "&#x27;"); break;
- default: {
- buffer_need_bytes(wb, 1);
- wb->buffer[wb->len++] = *txt;
- }
- }
- txt++;
- }
-
- buffer_overflow_check(wb);
-}
-
-void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...)
-{
- if(unlikely(!fmt || !*fmt)) return;
-
- buffer_need_bytes(wb, len + 1);
-
- va_list args;
- va_start(args, fmt);
- wb->len += vsnprintfz(&wb->buffer[wb->len], len, fmt, args);
- va_end(args);
-
- buffer_overflow_check(wb);
-
- // the buffer is \0 terminated by vsnprintfz
-}
-
-void buffer_vsprintf(BUFFER *wb, const char *fmt, va_list args)
-{
- if(unlikely(!fmt || !*fmt)) return;
-
- buffer_need_bytes(wb, 2);
-
- size_t len = wb->size - wb->len - 1;
-
- wb->len += vsnprintfz(&wb->buffer[wb->len], len, fmt, args);
-
- buffer_overflow_check(wb);
-
- // the buffer is \0 terminated by vsnprintfz
-}
-
-void buffer_sprintf(BUFFER *wb, const char *fmt, ...)
-{
- if(unlikely(!fmt || !*fmt)) return;
-
- va_list args;
- size_t wrote = 0, need = 2, multiplier = 0, len;
-
- do {
- need += wrote + multiplier * WEB_DATA_LENGTH_INCREASE_STEP;
- multiplier++;
-
- debug(D_WEB_BUFFER, "web_buffer_sprintf(): increasing web_buffer at position %zu, size = %zu, by %zu bytes (wrote = %zu)\n", wb->len, wb->size, need, wrote);
- buffer_need_bytes(wb, need);
-
- len = wb->size - wb->len - 1;
-
- va_start(args, fmt);
- wrote = (size_t) vsnprintfz(&wb->buffer[wb->len], len, fmt, args);
- va_end(args);
-
- } while(wrote >= len);
-
- wb->len += wrote;
-
- // the buffer is \0 terminated by vsnprintf
-}
-
-
-void buffer_rrd_value(BUFFER *wb, calculated_number value)
-{
- buffer_need_bytes(wb, 50);
-
- if(isnan(value) || isinf(value)) {
- buffer_strcat(wb, "null");
- return;
- }
- else
- wb->len += print_calculated_number(&wb->buffer[wb->len], value);
-
- // terminate it
- buffer_need_bytes(wb, 1);
- wb->buffer[wb->len] = '\0';
-
- buffer_overflow_check(wb);
-}
-
-// generate a javascript date, the fastest possible way...
-void buffer_jsdate(BUFFER *wb, int year, int month, int day, int hours, int minutes, int seconds)
-{
- // 10 20 30 = 35
- // 01234567890123456789012345678901234
- // Date(2014,04,01,03,28,20)
-
- buffer_need_bytes(wb, 30);
-
- char *b = &wb->buffer[wb->len], *p;
- unsigned int *q = (unsigned int *)b;
-
- #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
- *q++ = 0x65746144; // "Date" backwards.
- #else
- *q++ = 0x44617465; // "Date"
- #endif
- p = (char *)q;
-
- *p++ = '(';
- *p++ = '0' + year / 1000; year %= 1000;
- *p++ = '0' + year / 100; year %= 100;
- *p++ = '0' + year / 10;
- *p++ = '0' + year % 10;
- *p++ = ',';
- *p = '0' + month / 10; if (*p != '0') p++;
- *p++ = '0' + month % 10;
- *p++ = ',';
- *p = '0' + day / 10; if (*p != '0') p++;
- *p++ = '0' + day % 10;
- *p++ = ',';
- *p = '0' + hours / 10; if (*p != '0') p++;
- *p++ = '0' + hours % 10;
- *p++ = ',';
- *p = '0' + minutes / 10; if (*p != '0') p++;
- *p++ = '0' + minutes % 10;
- *p++ = ',';
- *p = '0' + seconds / 10; if (*p != '0') p++;
- *p++ = '0' + seconds % 10;
-
- unsigned short *r = (unsigned short *)p;
-
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
- *r++ = 0x0029; // ")\0" backwards.
- #else
- *r++ = 0x2900; // ")\0"
- #endif
-
- wb->len += (size_t)((char *)r - b - 1);
-
- // terminate it
- wb->buffer[wb->len] = '\0';
- buffer_overflow_check(wb);
-}
-
-// generate a date, the fastest possible way...
-void buffer_date(BUFFER *wb, int year, int month, int day, int hours, int minutes, int seconds)
-{
- // 10 20 30 = 35
- // 01234567890123456789012345678901234
- // 2014-04-01 03:28:20
-
- buffer_need_bytes(wb, 36);
-
- char *b = &wb->buffer[wb->len];
- char *p = b;
-
- *p++ = '0' + year / 1000; year %= 1000;
- *p++ = '0' + year / 100; year %= 100;
- *p++ = '0' + year / 10;
- *p++ = '0' + year % 10;
- *p++ = '-';
- *p++ = '0' + month / 10;
- *p++ = '0' + month % 10;
- *p++ = '-';
- *p++ = '0' + day / 10;
- *p++ = '0' + day % 10;
- *p++ = ' ';
- *p++ = '0' + hours / 10;
- *p++ = '0' + hours % 10;
- *p++ = ':';
- *p++ = '0' + minutes / 10;
- *p++ = '0' + minutes % 10;
- *p++ = ':';
- *p++ = '0' + seconds / 10;
- *p++ = '0' + seconds % 10;
- *p = '\0';
-
- wb->len += (size_t)(p - b);
-
- // terminate it
- wb->buffer[wb->len] = '\0';
- buffer_overflow_check(wb);
-}
-
-BUFFER *buffer_create(size_t size)
-{
- BUFFER *b;
-
- debug(D_WEB_BUFFER, "Creating new web buffer of size %zu.", size);
-
- b = callocz(1, sizeof(BUFFER));
- b->buffer = mallocz(size + sizeof(BUFFER_OVERFLOW_EOF) + 2);
- b->buffer[0] = '\0';
- b->size = size;
- b->contenttype = CT_TEXT_PLAIN;
- buffer_overflow_init(b);
- buffer_overflow_check(b);
-
- return(b);
-}
-
-void buffer_free(BUFFER *b) {
- if(unlikely(!b)) return;
-
- buffer_overflow_check(b);
-
- debug(D_WEB_BUFFER, "Freeing web buffer of size %zu.", b->size);
-
- freez(b->buffer);
- freez(b);
-}
-
-void buffer_increase(BUFFER *b, size_t free_size_required)
-{
- buffer_overflow_check(b);
-
- size_t left = b->size - b->len;
-
- if(left >= free_size_required) return;
-
- size_t increase = free_size_required - left;
- if(increase < WEB_DATA_LENGTH_INCREASE_STEP) increase = WEB_DATA_LENGTH_INCREASE_STEP;
-
- debug(D_WEB_BUFFER, "Increasing data buffer from size %zu to %zu.", b->size, b->size + increase);
-
- b->buffer = reallocz(b->buffer, b->size + increase + sizeof(BUFFER_OVERFLOW_EOF) + 2);
- b->size += increase;
-
- buffer_overflow_init(b);
- buffer_overflow_check(b);
-}
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