#include "collectd.h"
-#include "plugin.h"
#include "common.h"
+#include "plugin.h"
-#include "utils_format_graphite.h"
#include "utils_cache.h"
+#include "utils_format_graphite.h"
#define GRAPHITE_FORBIDDEN " \t\"\\:!/()\n\r"
/* Utils functions to format data sets in graphite format.
* Largely taken from write_graphite.c as it remains the same formatting */
-static int gr_format_values (char *ret, size_t ret_len,
- int ds_num, const data_set_t *ds, const value_list_t *vl,
- gauge_t const *rates)
-{
- size_t offset = 0;
- int status;
-
- assert (0 == strcmp (ds->type, vl->type));
-
- memset (ret, 0, ret_len);
-
-#define BUFFER_ADD(...) do { \
- status = ssnprintf (ret + offset, ret_len - offset, \
- __VA_ARGS__); \
- if (status < 1) \
- { \
- return (-1); \
- } \
- else if (((size_t) status) >= (ret_len - offset)) \
- { \
- return (-1); \
- } \
- else \
- offset += ((size_t) status); \
-} while (0)
-
- if (ds->ds[ds_num].type == DS_TYPE_GAUGE)
- BUFFER_ADD (GAUGE_FORMAT, vl->values[ds_num].gauge);
- else if (rates != NULL)
- BUFFER_ADD ("%f", rates[ds_num]);
- else if (ds->ds[ds_num].type == DS_TYPE_COUNTER)
- BUFFER_ADD ("%llu", vl->values[ds_num].counter);
- else if (ds->ds[ds_num].type == DS_TYPE_DERIVE)
- BUFFER_ADD ("%"PRIi64, vl->values[ds_num].derive);
- else if (ds->ds[ds_num].type == DS_TYPE_ABSOLUTE)
- BUFFER_ADD ("%"PRIu64, vl->values[ds_num].absolute);
- else
- {
- ERROR ("gr_format_values plugin: Unknown data source type: %i",
- ds->ds[ds_num].type);
- return (-1);
- }
+static int gr_format_values(char *ret, size_t ret_len, int ds_num,
+ const data_set_t *ds, const value_list_t *vl,
+ gauge_t const *rates) {
+ size_t offset = 0;
+ int status;
+
+ assert(0 == strcmp(ds->type, vl->type));
+
+ memset(ret, 0, ret_len);
+
+#define BUFFER_ADD(...) \
+ do { \
+ status = snprintf(ret + offset, ret_len - offset, __VA_ARGS__); \
+ if (status < 1) { \
+ return -1; \
+ } else if (((size_t)status) >= (ret_len - offset)) { \
+ return -1; \
+ } else \
+ offset += ((size_t)status); \
+ } while (0)
+
+ if (ds->ds[ds_num].type == DS_TYPE_GAUGE)
+ BUFFER_ADD(GAUGE_FORMAT, vl->values[ds_num].gauge);
+ else if (rates != NULL)
+ BUFFER_ADD("%f", rates[ds_num]);
+ else if (ds->ds[ds_num].type == DS_TYPE_COUNTER)
+ BUFFER_ADD("%" PRIu64, (uint64_t)vl->values[ds_num].counter);
+ else if (ds->ds[ds_num].type == DS_TYPE_DERIVE)
+ BUFFER_ADD("%" PRIi64, vl->values[ds_num].derive);
+ else if (ds->ds[ds_num].type == DS_TYPE_ABSOLUTE)
+ BUFFER_ADD("%" PRIu64, vl->values[ds_num].absolute);
+ else {
+ ERROR("gr_format_values plugin: Unknown data source type: %i",
+ ds->ds[ds_num].type);
+ return -1;
+ }
#undef BUFFER_ADD
- return (0);
+ return 0;
}
-static void gr_copy_escape_part (char *dst, const char *src, size_t dst_len,
- char escape_char)
-{
- memset (dst, 0, dst_len);
-
- if (src == NULL)
- return;
-
- for (size_t i = 0; i < dst_len; i++)
- {
- if (src[i] == 0)
- {
- dst[i] = 0;
- break;
- }
-
- if ((src[i] == '.')
- || isspace ((int) src[i])
- || iscntrl ((int) src[i]))
- dst[i] = escape_char;
- else
- dst[i] = src[i];
+static void gr_copy_escape_part(char *dst, const char *src, size_t dst_len,
+ char escape_char, _Bool preserve_separator) {
+ memset(dst, 0, dst_len);
+
+ if (src == NULL)
+ return;
+
+ for (size_t i = 0; i < dst_len; i++) {
+ if (src[i] == 0) {
+ dst[i] = 0;
+ break;
}
-}
-static int gr_format_name (char *ret, int ret_len,
- value_list_t const *vl,
- char const *ds_name,
- char const *prefix,
- char const *postfix,
- char const escape_char,
- unsigned int flags)
-{
- char n_host[DATA_MAX_NAME_LEN];
- char n_plugin[DATA_MAX_NAME_LEN];
- char n_plugin_instance[DATA_MAX_NAME_LEN];
- char n_type[DATA_MAX_NAME_LEN];
- char n_type_instance[DATA_MAX_NAME_LEN];
-
- char tmp_plugin[2 * DATA_MAX_NAME_LEN + 1];
- char tmp_type[2 * DATA_MAX_NAME_LEN + 1];
-
- if (prefix == NULL)
- prefix = "";
-
- if (postfix == NULL)
- postfix = "";
-
- gr_copy_escape_part (n_host, vl->host,
- sizeof (n_host), escape_char);
- gr_copy_escape_part (n_plugin, vl->plugin,
- sizeof (n_plugin), escape_char);
- gr_copy_escape_part (n_plugin_instance, vl->plugin_instance,
- sizeof (n_plugin_instance), escape_char);
- gr_copy_escape_part (n_type, vl->type,
- sizeof (n_type), escape_char);
- gr_copy_escape_part (n_type_instance, vl->type_instance,
- sizeof (n_type_instance), escape_char);
-
- if (n_plugin_instance[0] != '\0')
- ssnprintf (tmp_plugin, sizeof (tmp_plugin), "%s%c%s",
- n_plugin,
- (flags & GRAPHITE_SEPARATE_INSTANCES) ? '.' : '-',
- n_plugin_instance);
+ if ((!preserve_separator && (src[i] == '.')) || isspace((int)src[i]) ||
+ iscntrl((int)src[i]))
+ dst[i] = escape_char;
else
- sstrncpy (tmp_plugin, n_plugin, sizeof (tmp_plugin));
+ dst[i] = src[i];
+ }
+}
- if (n_type_instance[0] != '\0')
- ssnprintf (tmp_type, sizeof (tmp_type), "%s%c%s",
- n_type,
- (flags & GRAPHITE_SEPARATE_INSTANCES) ? '.' : '-',
- n_type_instance);
+static int gr_format_name(char *ret, int ret_len, value_list_t const *vl,
+ char const *ds_name, char const *prefix,
+ char const *postfix, char const escape_char,
+ unsigned int flags) {
+ char n_host[DATA_MAX_NAME_LEN];
+ char n_plugin[DATA_MAX_NAME_LEN];
+ char n_plugin_instance[DATA_MAX_NAME_LEN];
+ char n_type[DATA_MAX_NAME_LEN];
+ char n_type_instance[DATA_MAX_NAME_LEN];
+
+ char tmp_plugin[2 * DATA_MAX_NAME_LEN + 1];
+ char tmp_type[2 * DATA_MAX_NAME_LEN + 1];
+
+ if (prefix == NULL)
+ prefix = "";
+
+ if (postfix == NULL)
+ postfix = "";
+
+ _Bool preserve_separator = (flags & GRAPHITE_PRESERVE_SEPARATOR) ? 1 : 0;
+
+ gr_copy_escape_part(n_host, vl->host, sizeof(n_host), escape_char,
+ preserve_separator);
+ gr_copy_escape_part(n_plugin, vl->plugin, sizeof(n_plugin), escape_char,
+ preserve_separator);
+ gr_copy_escape_part(n_plugin_instance, vl->plugin_instance,
+ sizeof(n_plugin_instance), escape_char,
+ preserve_separator);
+ gr_copy_escape_part(n_type, vl->type, sizeof(n_type), escape_char,
+ preserve_separator);
+ gr_copy_escape_part(n_type_instance, vl->type_instance,
+ sizeof(n_type_instance), escape_char, preserve_separator);
+
+ if (n_plugin_instance[0] != '\0')
+ snprintf(tmp_plugin, sizeof(tmp_plugin), "%s%c%s", n_plugin,
+ (flags & GRAPHITE_SEPARATE_INSTANCES) ? '.' : '-',
+ n_plugin_instance);
+ else
+ sstrncpy(tmp_plugin, n_plugin, sizeof(tmp_plugin));
+
+ if (n_type_instance[0] != '\0') {
+ if ((flags & GRAPHITE_DROP_DUPE_FIELDS) && strcmp(n_plugin, n_type) == 0)
+ sstrncpy(tmp_type, n_type_instance, sizeof(tmp_type));
else
- sstrncpy (tmp_type, n_type, sizeof (tmp_type));
-
- /* Assert always_append_ds -> ds_name */
- assert (!(flags & GRAPHITE_ALWAYS_APPEND_DS) || (ds_name != NULL));
- if (ds_name != NULL)
- ssnprintf (ret, ret_len, "%s%s%s.%s.%s.%s",
- prefix, n_host, postfix, tmp_plugin, tmp_type, ds_name);
+ snprintf(tmp_type, sizeof(tmp_type), "%s%c%s", n_type,
+ (flags & GRAPHITE_SEPARATE_INSTANCES) ? '.' : '-',
+ n_type_instance);
+ } else
+ sstrncpy(tmp_type, n_type, sizeof(tmp_type));
+
+ /* Assert always_append_ds -> ds_name */
+ assert(!(flags & GRAPHITE_ALWAYS_APPEND_DS) || (ds_name != NULL));
+ if (ds_name != NULL) {
+ if ((flags & GRAPHITE_DROP_DUPE_FIELDS) &&
+ strcmp(tmp_plugin, tmp_type) == 0)
+ snprintf(ret, ret_len, "%s%s%s.%s.%s", prefix, n_host, postfix,
+ tmp_plugin, ds_name);
else
- ssnprintf (ret, ret_len, "%s%s%s.%s.%s",
- prefix, n_host, postfix, tmp_plugin, tmp_type);
+ snprintf(ret, ret_len, "%s%s%s.%s.%s.%s", prefix, n_host, postfix,
+ tmp_plugin, tmp_type, ds_name);
+ } else
+ snprintf(ret, ret_len, "%s%s%s.%s.%s", prefix, n_host, postfix, tmp_plugin,
+ tmp_type);
- return (0);
+ return 0;
}
-static void escape_graphite_string (char *buffer, char escape_char)
-{
- assert (strchr(GRAPHITE_FORBIDDEN, escape_char) == NULL);
+static void escape_graphite_string(char *buffer, char escape_char) {
+ assert(strchr(GRAPHITE_FORBIDDEN, escape_char) == NULL);
- for (char *head = buffer + strcspn(buffer, GRAPHITE_FORBIDDEN);
- *head != '\0';
- head += strcspn(head, GRAPHITE_FORBIDDEN))
- *head = escape_char;
+ for (char *head = buffer + strcspn(buffer, GRAPHITE_FORBIDDEN); *head != '\0';
+ head += strcspn(head, GRAPHITE_FORBIDDEN))
+ *head = escape_char;
}
-int format_graphite (char *buffer, size_t buffer_size,
- data_set_t const *ds, value_list_t const *vl,
- char const *prefix, char const *postfix, char const escape_char,
- unsigned int flags)
-{
- int status = 0;
- int buffer_pos = 0;
-
- gauge_t *rates = NULL;
- if (flags & GRAPHITE_STORE_RATES)
- rates = uc_get_rate (ds, vl);
-
- for (size_t i = 0; i < ds->ds_num; i++)
- {
- char const *ds_name = NULL;
- char key[10*DATA_MAX_NAME_LEN];
- char values[512];
- size_t message_len;
- char message[1024];
-
- if ((flags & GRAPHITE_ALWAYS_APPEND_DS)
- || (ds->ds_num > 1))
- ds_name = ds->ds[i].name;
-
- /* Copy the identifier to `key' and escape it. */
- status = gr_format_name (key, sizeof (key), vl, ds_name,
- prefix, postfix, escape_char, flags);
- if (status != 0)
- {
- ERROR ("format_graphite: error with gr_format_name");
- sfree (rates);
- return (status);
- }
-
- escape_graphite_string (key, escape_char);
- /* Convert the values to an ASCII representation and put that into
- * `values'. */
- status = gr_format_values (values, sizeof (values), i, ds, vl, rates);
- if (status != 0)
- {
- ERROR ("format_graphite: error with gr_format_values");
- sfree (rates);
- return (status);
- }
-
- /* Compute the graphite command */
- message_len = (size_t) ssnprintf (message, sizeof (message),
- "%s %s %u\r\n",
- key,
- values,
- (unsigned int) CDTIME_T_TO_TIME_T (vl->time));
- if (message_len >= sizeof (message)) {
- ERROR ("format_graphite: message buffer too small: "
- "Need %zu bytes.", message_len + 1);
- sfree (rates);
- return (-ENOMEM);
- }
-
- /* Append it in case we got multiple data set */
- if ((buffer_pos + message_len) >= buffer_size)
- {
- ERROR ("format_graphite: target buffer too small");
- sfree (rates);
- return (-ENOMEM);
- }
- memcpy((void *) (buffer + buffer_pos), message, message_len);
- buffer_pos += message_len;
- buffer[buffer_pos] = '\0';
+int format_graphite(char *buffer, size_t buffer_size, data_set_t const *ds,
+ value_list_t const *vl, char const *prefix,
+ char const *postfix, char const escape_char,
+ unsigned int flags) {
+ int status = 0;
+ int buffer_pos = 0;
+
+ gauge_t *rates = NULL;
+ if (flags & GRAPHITE_STORE_RATES) {
+ rates = uc_get_rate(ds, vl);
+ if (rates == NULL) {
+ ERROR("format_graphite: error with uc_get_rate");
+ return -1;
+ }
+ }
+
+ for (size_t i = 0; i < ds->ds_num; i++) {
+ char const *ds_name = NULL;
+ char key[10 * DATA_MAX_NAME_LEN];
+ char values[512];
+ size_t message_len;
+ char message[1024];
+
+ if ((flags & GRAPHITE_ALWAYS_APPEND_DS) || (ds->ds_num > 1))
+ ds_name = ds->ds[i].name;
+
+ /* Copy the identifier to `key' and escape it. */
+ status = gr_format_name(key, sizeof(key), vl, ds_name, prefix, postfix,
+ escape_char, flags);
+ if (status != 0) {
+ ERROR("format_graphite: error with gr_format_name");
+ sfree(rates);
+ return status;
+ }
+
+ escape_graphite_string(key, escape_char);
+ /* Convert the values to an ASCII representation and put that into
+ * `values'. */
+ status = gr_format_values(values, sizeof(values), i, ds, vl, rates);
+ if (status != 0) {
+ ERROR("format_graphite: error with gr_format_values");
+ sfree(rates);
+ return status;
}
- sfree (rates);
- return (status);
-} /* int format_graphite */
-/* vim: set sw=2 sts=2 et fdm=marker : */
+ /* Compute the graphite command */
+ message_len =
+ (size_t)snprintf(message, sizeof(message), "%s %s %u\r\n", key, values,
+ (unsigned int)CDTIME_T_TO_TIME_T(vl->time));
+ if (message_len >= sizeof(message)) {
+ ERROR("format_graphite: message buffer too small: "
+ "Need %" PRIsz " bytes.",
+ message_len + 1);
+ sfree(rates);
+ return -ENOMEM;
+ }
+
+ /* Append it in case we got multiple data set */
+ if ((buffer_pos + message_len) >= buffer_size) {
+ ERROR("format_graphite: target buffer too small");
+ sfree(rates);
+ return -ENOMEM;
+ }
+ memcpy((void *)(buffer + buffer_pos), message, message_len);
+ buffer_pos += message_len;
+ buffer[buffer_pos] = '\0';
+ }
+ sfree(rates);
+ return status;
+} /* int format_graphite */
projects / collectd.git / blobdiff