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-rw-r--r--src/rrdsetvar.c113
1 files changed, 86 insertions, 27 deletions
diff --git a/src/rrdsetvar.c b/src/rrdsetvar.c
index 03d7aeced..280156a8a 100644
--- a/src/rrdsetvar.c
+++ b/src/rrdsetvar.c
@@ -8,29 +8,29 @@
static inline void rrdsetvar_free_variables(RRDSETVAR *rs) {
RRDSET *st = rs->rrdset;
+ // ------------------------------------------------------------------------
// CHART
-
- rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local);
+ rrdvar_free(st->rrdhost, &st->rrdvar_root_index, rs->var_local);
rs->var_local = NULL;
+ // ------------------------------------------------------------------------
// FAMILY
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family);
+ rrdvar_free(st->rrdhost, &st->rrdfamily->rrdvar_root_index, rs->var_family);
rs->var_family = NULL;
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host);
- rs->var_host = NULL;
+ rrdvar_free(st->rrdhost, &st->rrdfamily->rrdvar_root_index, rs->var_family_name);
+ rs->var_family_name = NULL;
+ // ------------------------------------------------------------------------
// HOST
+ rrdvar_free(st->rrdhost, &st->rrdhost->rrdvar_root_index, rs->var_host);
+ rs->var_host = NULL;
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name);
- rs->var_family_name = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_name);
+ rrdvar_free(st->rrdhost, &st->rrdhost->rrdvar_root_index, rs->var_host_name);
rs->var_host_name = NULL;
+ // ------------------------------------------------------------------------
// KEYS
-
freez(rs->key_fullid);
rs->key_fullid = NULL;
@@ -39,10 +39,14 @@ static inline void rrdsetvar_free_variables(RRDSETVAR *rs) {
}
static inline void rrdsetvar_create_variables(RRDSETVAR *rs) {
- rrdsetvar_free_variables(rs);
-
RRDSET *st = rs->rrdset;
+ // ------------------------------------------------------------------------
+ // free the old ones (if any)
+
+ rrdsetvar_free_variables(rs);
+
+ // ------------------------------------------------------------------------
// KEYS
char buffer[RRDVAR_MAX_LENGTH + 1];
@@ -52,27 +56,27 @@ static inline void rrdsetvar_create_variables(RRDSETVAR *rs) {
snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rs->variable);
rs->key_fullname = strdupz(buffer);
+ // ------------------------------------------------------------------------
// CHART
+ rs->var_local = rrdvar_create_and_index("local", &st->rrdvar_root_index, rs->variable, rs->type, rs->value);
- rs->var_local = rrdvar_create_and_index("local", &st->variables_root_index, rs->variable, rs->type, rs->value);
-
+ // ------------------------------------------------------------------------
// FAMILY
+ rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rs->key_fullid, rs->type, rs->value);
+ rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rs->key_fullname, rs->type, rs->value);
- rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullid, rs->type, rs->value);
- rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullname, rs->type, rs->value);
-
+ // ------------------------------------------------------------------------
// HOST
-
- rs->var_host = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullid, rs->type, rs->value);
- rs->var_host_name = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullname, rs->type, rs->value);
-
+ rs->var_host = rrdvar_create_and_index("host", &st->rrdhost->rrdvar_root_index, rs->key_fullid, rs->type, rs->value);
+ rs->var_host_name = rrdvar_create_and_index("host", &st->rrdhost->rrdvar_root_index, rs->key_fullname, rs->type, rs->value);
}
-RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options) {
+RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, RRDVAR_TYPE type, void *value, RRDVAR_OPTIONS options) {
debug(D_VARIABLES, "RRDVARSET create for chart id '%s' name '%s' with variable name '%s'", st->id, st->name, variable);
RRDSETVAR *rs = (RRDSETVAR *)callocz(1, sizeof(RRDSETVAR));
rs->variable = strdupz(variable);
+ rs->hash = simple_hash(rs->variable);
rs->type = type;
rs->value = value;
rs->options = options;
@@ -89,11 +93,9 @@ RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *va
void rrdsetvar_rename_all(RRDSET *st) {
debug(D_VARIABLES, "RRDSETVAR rename for chart id '%s' name '%s'", st->id, st->name);
- RRDSETVAR *rs, *next = st->variables;
- while((rs = next)) {
- next = rs->next;
+ RRDSETVAR *rs;
+ for(rs = st->variables; rs ; rs = rs->next)
rrdsetvar_create_variables(rs);
- }
rrdsetcalc_link_matching(st);
}
@@ -115,6 +117,63 @@ void rrdsetvar_free(RRDSETVAR *rs) {
rrdsetvar_free_variables(rs);
freez(rs->variable);
+
+ if(rs->options & RRDVAR_OPTION_ALLOCATED)
+ freez(rs->value);
+
freez(rs);
}
+// --------------------------------------------------------------------------------------------------------------------
+// custom chart variables
+
+RRDSETVAR *rrdsetvar_custom_chart_variable_create(RRDSET *st, const char *name) {
+ char *n = strdupz(name);
+ rrdvar_fix_name(n);
+ uint32_t hash = simple_hash(n);
+
+ rrdset_wrlock(st);
+
+ // find it
+ RRDSETVAR *rs;
+ for(rs = st->variables; rs ; rs = rs->next) {
+ if(hash == rs->hash && strcmp(n, rs->variable) == 0) {
+ rrdset_unlock(st);
+ if(rs->options & RRDVAR_OPTION_ALLOCATED) {
+ free(n);
+ return rs;
+ }
+ else {
+ error("RRDSETVAR: custom variable '%s' on chart '%s' of host '%s', conflicts with an internal chart variable", n, st->id, st->rrdhost->hostname);
+ free(n);
+ return NULL;
+ }
+ }
+ }
+
+ // not found, allocate one
+
+ calculated_number *v = mallocz(sizeof(calculated_number));
+ *v = NAN;
+
+ rs = rrdsetvar_create(st, n, RRDVAR_TYPE_CALCULATED, v, RRDVAR_OPTION_ALLOCATED);
+ rrdset_unlock(st);
+
+ free(n);
+ return rs;
+}
+
+void rrdsetvar_custom_chart_variable_set(RRDSETVAR *rs, calculated_number value) {
+ if(unlikely(!(rs->options & RRDVAR_OPTION_ALLOCATED))) {
+ error("RRDSETVAR: requested to set variable '%s' of chart '%s' on host '%s' to value " CALCULATED_NUMBER_FORMAT " but the variable is not a custom one.", rs->variable, rs->rrdset->id, rs->rrdset->rrdhost->hostname, value);
+ }
+ else {
+ calculated_number *v = rs->value;
+ if(*v != value) {
+ *v = value;
+
+ // mark the chart to be sent upstream
+ rrdset_flag_clear(rs->rrdset, RRDSET_FLAG_EXPOSED_UPSTREAM);
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 13:05:30 +0000