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-rw-r--r--src/rrdvar.c93
1 files changed, 50 insertions, 43 deletions
diff --git a/src/rrdvar.c b/src/rrdvar.c
index 2223d7c9a..9119b5384 100644
--- a/src/rrdvar.c
+++ b/src/rrdvar.c
@@ -56,14 +56,17 @@ inline void rrdvar_free(RRDHOST *host, avl_tree_lock *tree, RRDVAR *rv) {
if(tree) {
debug(D_VARIABLES, "Deleting variable '%s'", rv->name);
if(unlikely(!rrdvar_index_del(tree, rv)))
- error("Attempted to delete variable '%s' from host '%s', but it is not found.", rv->name, host->hostname);
+ error("RRDVAR: Attempted to delete variable '%s' from host '%s', but it is not found.", rv->name, host->hostname);
}
+ if(rv->type == RRDVAR_TYPE_CALCULATED_ALLOCATED)
+ freez(rv->value);
+
freez(rv->name);
freez(rv);
}
-inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, const char *name, int type, void *value) {
+inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, const char *name, RRDVAR_TYPE type, void *value) {
char *variable = strdupz(name);
rrdvar_fix_name(variable);
uint32_t hash = simple_hash(variable);
@@ -81,7 +84,8 @@ inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, c
RRDVAR *ret = rrdvar_index_add(tree, rv);
if(unlikely(ret != rv)) {
debug(D_VARIABLES, "Variable '%s' in scope '%s' already exists", variable, scope);
- rrdvar_free(NULL, NULL, rv);
+ freez(rv);
+ freez(variable);
rv = NULL;
}
else
@@ -101,61 +105,64 @@ inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, c
return rv;
}
+void rrdvar_free_remaining_variables(RRDHOST *host, avl_tree_lock *tree_lock) {
+ // FIXME: this is not bullet proof - avl should support some means to destroy it
+ // with a callback for each item already in the index
+
+ RRDVAR *rv, *last = NULL;
+ while((rv = (RRDVAR *)tree_lock->avl_tree.root)) {
+ if(unlikely(rv == last)) {
+ error("RRDVAR: INTERNAL ERROR: Cannot cleanup tree of RRDVARs");
+ break;
+ }
+ last = rv;
+ rrdvar_free(host, tree_lock, rv);
+ }
+}
+
// ----------------------------------------------------------------------------
-// CUSTOM VARIABLES
+// CUSTOM HOST VARIABLES
-RRDVAR *rrdvar_custom_host_variable_create(RRDHOST *host, const char *name) {
+inline int rrdvar_callback_for_all_host_variables(RRDHOST *host, int (*callback)(void *rrdvar, void *data), void *data) {
+ return avl_traverse_lock(&host->rrdvar_root_index, callback, data);
+}
+
+static RRDVAR *rrdvar_custom_variable_create(const char *scope, avl_tree_lock *tree_lock, const char *name) {
calculated_number *v = callocz(1, sizeof(calculated_number));
*v = NAN;
- RRDVAR *rv = rrdvar_create_and_index("host", &host->variables_root_index, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v);
+
+ RRDVAR *rv = rrdvar_create_and_index(scope, tree_lock, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v);
if(unlikely(!rv)) {
free(v);
- error("Requested variable '%s' already exists - possibly 2 plugins will be updating it at the same time", name);
+ debug(D_VARIABLES, "Requested variable '%s' already exists - possibly 2 plugins are updating it at the same time.", name);
char *variable = strdupz(name);
rrdvar_fix_name(variable);
uint32_t hash = simple_hash(variable);
- rv = rrdvar_index_find(&host->variables_root_index, variable, hash);
+ rv = rrdvar_index_find(tree_lock, variable, hash);
+
+ freez(variable);
}
return rv;
}
-void rrdvar_custom_host_variable_destroy(RRDHOST *host, const char *name) {
- char *variable = strdupz(name);
- rrdvar_fix_name(variable);
- uint32_t hash = simple_hash(variable);
-
- RRDVAR *rv = rrdvar_index_find(&host->variables_root_index, variable, hash);
- freez(variable);
-
- if(!rv) {
- error("Attempted to remove variable '%s' from host '%s', but it does not exist.", name, host->hostname);
- return;
- }
-
- if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED) {
- error("Attempted to remove variable '%s' from host '%s', but it does not a custom allocated variable.", name, host->hostname);
- return;
- }
-
- if(!rrdvar_index_del(&host->variables_root_index, rv)) {
- error("Attempted to remove variable '%s' from host '%s', but it cannot be found.", name, host->hostname);
- return;
- }
-
- freez(rv->name);
- freez(rv->value);
- freez(rv);
+RRDVAR *rrdvar_custom_host_variable_create(RRDHOST *host, const char *name) {
+ return rrdvar_custom_variable_create("host", &host->rrdvar_root_index, name);
}
-void rrdvar_custom_host_variable_set(RRDVAR *rv, calculated_number value) {
+void rrdvar_custom_host_variable_set(RRDHOST *host, RRDVAR *rv, calculated_number value) {
if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED)
error("requested to set variable '%s' to value " CALCULATED_NUMBER_FORMAT " but the variable is not a custom one.", rv->name, value);
else {
calculated_number *v = rv->value;
- *v = value;
+ if(*v != value) {
+ *v = value;
+
+ // if the host is streaming, send this variable upstream immediately
+ rrdpush_sender_send_this_host_variable_now(host, rv);
+ }
}
}
@@ -191,7 +198,7 @@ static calculated_number rrdvar2number(RRDVAR *rv) {
}
default:
- error("I don't know how to convert RRDVAR type %d to calculated_number", rv->type);
+ error("I don't know how to convert RRDVAR type %u to calculated_number", rv->type);
return NAN;
}
}
@@ -202,19 +209,19 @@ int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, cal
if(!st) return 0;
- rv = rrdvar_index_find(&st->variables_root_index, variable, hash);
+ rv = rrdvar_index_find(&st->rrdvar_root_index, variable, hash);
if(rv) {
*result = rrdvar2number(rv);
return 1;
}
- rv = rrdvar_index_find(&st->rrdfamily->variables_root_index, variable, hash);
+ rv = rrdvar_index_find(&st->rrdfamily->rrdvar_root_index, variable, hash);
if(rv) {
*result = rrdvar2number(rv);
return 1;
}
- rv = rrdvar_index_find(&st->rrdhost->variables_root_index, variable, hash);
+ rv = rrdvar_index_find(&st->rrdhost->rrdvar_root_index, variable, hash);
if(rv) {
*result = rrdvar2number(rv);
return 1;
@@ -253,13 +260,13 @@ void health_api_v1_chart_variables2json(RRDSET *st, BUFFER *buf) {
};
buffer_sprintf(buf, "{\n\t\"chart\": \"%s\",\n\t\"chart_name\": \"%s\",\n\t\"chart_context\": \"%s\",\n\t\"chart_variables\": {", st->id, st->name, st->context);
- avl_traverse_lock(&st->variables_root_index, single_variable2json, (void *)&helper);
+ avl_traverse_lock(&st->rrdvar_root_index, single_variable2json, (void *)&helper);
buffer_sprintf(buf, "\n\t},\n\t\"family\": \"%s\",\n\t\"family_variables\": {", st->family);
helper.counter = 0;
- avl_traverse_lock(&st->rrdfamily->variables_root_index, single_variable2json, (void *)&helper);
+ avl_traverse_lock(&st->rrdfamily->rrdvar_root_index, single_variable2json, (void *)&helper);
buffer_sprintf(buf, "\n\t},\n\t\"host\": \"%s\",\n\t\"host_variables\": {", st->rrdhost->hostname);
helper.counter = 0;
- avl_traverse_lock(&st->rrdhost->variables_root_index, single_variable2json, (void *)&helper);
+ avl_traverse_lock(&st->rrdhost->rrdvar_root_index, single_variable2json, (void *)&helper);
buffer_strcat(buf, "\n\t}\n}\n");
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 13:25:06 +0000