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-rw-r--r--libnetdata/buffer/buffer.c61
-rw-r--r--libnetdata/buffer/buffer.h55
2 files changed, 78 insertions, 38 deletions
diff --git a/libnetdata/buffer/buffer.c b/libnetdata/buffer/buffer.c
index feee72fc..64f9cce4 100644
--- a/libnetdata/buffer/buffer.c
+++ b/libnetdata/buffer/buffer.c
@@ -81,6 +81,7 @@ void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...)
va_list args;
va_start(args, fmt);
+ // vsnprintfz() returns the number of bytes actually written - after possible truncation
wb->len += vsnprintfz(&wb->buffer[wb->len], len, fmt, args);
va_end(args);
@@ -89,53 +90,39 @@ void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...)
// the buffer is \0 terminated by vsnprintfz
}
-void buffer_vsprintf(BUFFER *wb, const char *fmt, va_list args)
-{
+inline void buffer_vsprintf(BUFFER *wb, const char *fmt, va_list args) {
if(unlikely(!fmt || !*fmt)) return;
- size_t wrote = 0, need = 2, space_remaining = 0;
+ size_t full_size_bytes = 0, need = 2, space_remaining = 0;
do {
- need += space_remaining * 2;
+ need += full_size_bytes + 2;
- netdata_log_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);
space_remaining = wb->size - wb->len - 1;
- wrote = (size_t) vsnprintfz(&wb->buffer[wb->len], space_remaining, fmt, args);
+ // Use the copy of va_list for vsnprintf
+ va_list args_copy;
+ va_copy(args_copy, args);
+ // vsnprintf() returns the number of bytes required, even if bigger than the buffer provided
+ full_size_bytes = (size_t) vsnprintf(&wb->buffer[wb->len], space_remaining, fmt, args_copy);
+ va_end(args_copy);
- } while(wrote >= space_remaining);
+ } while(full_size_bytes >= space_remaining);
- wb->len += wrote;
+ wb->len += full_size_bytes;
- // the buffer is \0 terminated by vsnprintf
+ wb->buffer[wb->len] = '\0';
+ buffer_overflow_check(wb);
}
void buffer_sprintf(BUFFER *wb, const char *fmt, ...)
{
- if(unlikely(!fmt || !*fmt)) return;
-
va_list args;
- size_t wrote = 0, need = 2, space_remaining = 0;
-
- do {
- need += space_remaining * 2;
-
- netdata_log_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);
-
- space_remaining = wb->size - wb->len - 1;
-
- va_start(args, fmt);
- wrote = (size_t) vsnprintfz(&wb->buffer[wb->len], space_remaining, fmt, args);
- va_end(args);
-
- } while(wrote >= space_remaining);
-
- wb->len += wrote;
-
- // the buffer is \0 terminated by vsnprintf
+ va_start(args, fmt);
+ buffer_vsprintf(wb, fmt, args);
+ va_end(args);
}
// generate a javascript date, the fastest possible way...
@@ -301,12 +288,15 @@ void buffer_json_initialize(BUFFER *wb, const char *key_quote, const char *value
strncpyz(wb->json.key_quote, key_quote, BUFFER_QUOTE_MAX_SIZE);
strncpyz(wb->json.value_quote, value_quote, BUFFER_QUOTE_MAX_SIZE);
- wb->json.options = options;
wb->json.depth = (int8_t)(depth - 1);
_buffer_json_depth_push(wb, BUFFER_JSON_OBJECT);
if(add_anonymous_object)
buffer_fast_strcat(wb, "{", 1);
+ else
+ options |= BUFFER_JSON_OPTIONS_NON_ANONYMOUS;
+
+ wb->json.options = options;
wb->content_type = CT_APPLICATION_JSON;
buffer_no_cacheable(wb);
@@ -316,9 +306,14 @@ void buffer_json_finalize(BUFFER *wb) {
while(wb->json.depth >= 0) {
switch(wb->json.stack[wb->json.depth].type) {
case BUFFER_JSON_OBJECT:
- buffer_json_object_close(wb);
+ if (wb->json.depth == 0)
+ if (!(wb->json.options & BUFFER_JSON_OPTIONS_NON_ANONYMOUS))
+ buffer_json_object_close(wb);
+ else
+ _buffer_json_depth_pop(wb);
+ else
+ buffer_json_object_close(wb);
break;
-
case BUFFER_JSON_ARRAY:
buffer_json_array_close(wb);
break;
diff --git a/libnetdata/buffer/buffer.h b/libnetdata/buffer/buffer.h
index 26efe007..88d3f028 100644
--- a/libnetdata/buffer/buffer.h
+++ b/libnetdata/buffer/buffer.h
@@ -72,6 +72,7 @@ typedef enum __attribute__ ((__packed__)) {
BUFFER_JSON_OPTIONS_DEFAULT = 0,
BUFFER_JSON_OPTIONS_MINIFY = (1 << 0),
BUFFER_JSON_OPTIONS_NEWLINE_ON_ARRAY_ITEMS = (1 << 1),
+ BUFFER_JSON_OPTIONS_NON_ANONYMOUS = (1 << 2),
} BUFFER_JSON_OPTIONS;
typedef struct web_buffer {
@@ -93,6 +94,8 @@ typedef struct web_buffer {
} json;
} BUFFER;
+#define CLEAN_BUFFER _cleanup_(buffer_freep) BUFFER
+
#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)
@@ -134,6 +137,10 @@ BUFFER *buffer_create(size_t size, size_t *statistics);
void buffer_free(BUFFER *b);
void buffer_increase(BUFFER *b, size_t free_size_required);
+static inline void buffer_freep(BUFFER **bp) {
+ if(bp) buffer_free(*bp);
+}
+
void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...) PRINTFLIKE(3, 4);
void buffer_vsprintf(BUFFER *wb, const char *fmt, va_list args);
void buffer_sprintf(BUFFER *wb, const char *fmt, ...) PRINTFLIKE(2,3);
@@ -209,6 +216,13 @@ static inline void buffer_fast_rawcat(BUFFER *wb, const char *txt, size_t len) {
buffer_overflow_check(wb);
}
+static inline void buffer_putc(BUFFER *wb, char c) {
+ buffer_need_bytes(wb, 2);
+ wb->buffer[wb->len++] = c;
+ wb->buffer[wb->len] = '\0';
+ buffer_overflow_check(wb);
+}
+
static inline void buffer_fast_strcat(BUFFER *wb, const char *txt, size_t len) {
if(unlikely(!txt || !*txt || !len)) return;
@@ -282,6 +296,19 @@ static inline void buffer_strncat(BUFFER *wb, const char *txt, size_t len) {
buffer_overflow_check(wb);
}
+static inline void buffer_memcat(BUFFER *wb, const void *mem, size_t bytes) {
+ if(unlikely(!mem)) return;
+
+ buffer_need_bytes(wb, bytes + 1);
+
+ memcpy(&wb->buffer[wb->len], mem, bytes);
+
+ wb->len += bytes;
+ wb->buffer[wb->len] = '\0';
+
+ buffer_overflow_check(wb);
+}
+
static inline void buffer_json_strcat(BUFFER *wb, const char *txt) {
if(unlikely(!txt || !*txt)) return;
@@ -809,8 +836,13 @@ static inline void buffer_json_member_add_boolean(BUFFER *wb, const char *key, b
static inline void buffer_json_member_add_array(BUFFER *wb, const char *key) {
buffer_print_json_comma_newline_spacing(wb);
- buffer_print_json_key(wb, key);
- buffer_fast_strcat(wb, ":[", 2);
+ if (key) {
+ buffer_print_json_key(wb, key);
+ buffer_fast_strcat(wb, ":[", 2);
+ }
+ else
+ buffer_fast_strcat(wb, "[", 1);
+
wb->json.stack[wb->json.depth].count++;
_buffer_json_depth_push(wb, BUFFER_JSON_ARRAY);
@@ -860,6 +892,13 @@ static inline void buffer_json_add_array_item_uint64(BUFFER *wb, uint64_t value)
wb->json.stack[wb->json.depth].count++;
}
+static inline void buffer_json_add_array_item_boolean(BUFFER *wb, bool value) {
+ buffer_print_json_comma_newline_spacing(wb);
+
+ buffer_strcat(wb, value ? "true" : "false");
+ wb->json.stack[wb->json.depth].count++;
+}
+
static inline void buffer_json_add_array_item_time_t(BUFFER *wb, time_t value) {
buffer_print_json_comma_newline_spacing(wb);
@@ -959,12 +998,14 @@ typedef enum __attribute__((packed)) {
RRDF_FIELD_OPTS_STICKY = (1 << 2), // the field should be sticky
RRDF_FIELD_OPTS_FULL_WIDTH = (1 << 3), // the field should get full width
RRDF_FIELD_OPTS_WRAP = (1 << 4), // the field should wrap
- RRDR_FIELD_OPTS_DUMMY = (1 << 5), // not a presentable field
+ RRDF_FIELD_OPTS_DUMMY = (1 << 5), // not a presentable field
+ RRDF_FIELD_OPTS_EXPANDED_FILTER = (1 << 6), // show the filter expanded
} RRDF_FIELD_OPTIONS;
typedef enum __attribute__((packed)) {
RRDF_FIELD_TYPE_NONE,
RRDF_FIELD_TYPE_INTEGER,
+ RRDF_FIELD_TYPE_BOOLEAN,
RRDF_FIELD_TYPE_STRING,
RRDF_FIELD_TYPE_DETAIL_STRING,
RRDF_FIELD_TYPE_BAR_WITH_INTEGER,
@@ -982,6 +1023,9 @@ static inline const char *rrdf_field_type_to_string(RRDF_FIELD_TYPE type) {
case RRDF_FIELD_TYPE_INTEGER:
return "integer";
+ case RRDF_FIELD_TYPE_BOOLEAN:
+ return "boolean";
+
case RRDF_FIELD_TYPE_STRING:
return "string";
@@ -1112,7 +1156,7 @@ static inline const char *rrdf_field_summary_to_string(RRDF_FIELD_SUMMARY summar
}
typedef enum __attribute__((packed)) {
- RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_FILTER_NONE = 0,
RRDF_FIELD_FILTER_RANGE,
RRDF_FIELD_FILTER_MULTISELECT,
RRDF_FIELD_FILTER_FACET,
@@ -1173,8 +1217,9 @@ buffer_rrdf_table_add_field(BUFFER *wb, size_t field_id, const char *key, const
buffer_json_member_add_boolean(wb, "full_width", options & RRDF_FIELD_OPTS_FULL_WIDTH);
buffer_json_member_add_boolean(wb, "wrap", options & RRDF_FIELD_OPTS_WRAP);
+ buffer_json_member_add_boolean(wb, "default_expanded_filter", options & RRDF_FIELD_OPTS_EXPANDED_FILTER);
- if(options & RRDR_FIELD_OPTS_DUMMY)
+ if(options & RRDF_FIELD_OPTS_DUMMY)
buffer_json_member_add_boolean(wb, "dummy", true);
}
buffer_json_object_close(wb);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 10:19:38 +0000