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-rw-r--r--src/rrdvar.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/src/rrdvar.c b/src/rrdvar.c
deleted file mode 100644
index 6936c36f..00000000
--- a/src/rrdvar.c
+++ /dev/null
@@ -1,275 +0,0 @@
-#define NETDATA_HEALTH_INTERNALS
-#include "common.h"
-
-// ----------------------------------------------------------------------------
-// RRDVAR management
-
-inline int rrdvar_fix_name(char *variable) {
- int fixed = 0;
- while(*variable) {
- if (!isalnum(*variable) && *variable != '.' && *variable != '_') {
- *variable++ = '_';
- fixed++;
- }
- else
- variable++;
- }
-
- return fixed;
-}
-
-int rrdvar_compare(void* a, void* b) {
- if(((RRDVAR *)a)->hash < ((RRDVAR *)b)->hash) return -1;
- else if(((RRDVAR *)a)->hash > ((RRDVAR *)b)->hash) return 1;
- else return strcmp(((RRDVAR *)a)->name, ((RRDVAR *)b)->name);
-}
-
-static inline RRDVAR *rrdvar_index_add(avl_tree_lock *tree, RRDVAR *rv) {
- RRDVAR *ret = (RRDVAR *)avl_insert_lock(tree, (avl *)(rv));
- if(ret != rv)
- debug(D_VARIABLES, "Request to insert RRDVAR '%s' into index failed. Already exists.", rv->name);
-
- return ret;
-}
-
-static inline RRDVAR *rrdvar_index_del(avl_tree_lock *tree, RRDVAR *rv) {
- RRDVAR *ret = (RRDVAR *)avl_remove_lock(tree, (avl *)(rv));
- if(!ret)
- error("Request to remove RRDVAR '%s' from index failed. Not Found.", rv->name);
-
- return ret;
-}
-
-static inline RRDVAR *rrdvar_index_find(avl_tree_lock *tree, const char *name, uint32_t hash) {
- RRDVAR tmp;
- tmp.name = (char *)name;
- tmp.hash = (hash)?hash:simple_hash(tmp.name);
-
- return (RRDVAR *)avl_search_lock(tree, (avl *)&tmp);
-}
-
-inline void rrdvar_free(RRDHOST *host, avl_tree_lock *tree, RRDVAR *rv) {
- (void)host;
-
- if(!rv) return;
-
- if(tree) {
- debug(D_VARIABLES, "Deleting variable '%s'", rv->name);
- if(unlikely(!rrdvar_index_del(tree, rv)))
- 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, RRDVAR_TYPE type, void *value) {
- char *variable = strdupz(name);
- rrdvar_fix_name(variable);
- uint32_t hash = simple_hash(variable);
-
- RRDVAR *rv = rrdvar_index_find(tree, variable, hash);
- if(unlikely(!rv)) {
- debug(D_VARIABLES, "Variable '%s' not found in scope '%s'. Creating a new one.", variable, scope);
-
- rv = callocz(1, sizeof(RRDVAR));
- rv->name = variable;
- rv->hash = hash;
- rv->type = type;
- rv->value = value;
-
- RRDVAR *ret = rrdvar_index_add(tree, rv);
- if(unlikely(ret != rv)) {
- debug(D_VARIABLES, "Variable '%s' in scope '%s' already exists", variable, scope);
- freez(rv);
- freez(variable);
- rv = NULL;
- }
- else
- debug(D_VARIABLES, "Variable '%s' created in scope '%s'", variable, scope);
- }
- else {
- debug(D_VARIABLES, "Variable '%s' is already found in scope '%s'.", variable, scope);
-
- // already exists
- freez(variable);
-
- // this is important
- // it must return NULL - not the existing variable - or double-free will happen
- rv = NULL;
- }
-
- 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 HOST VARIABLES
-
-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(scope, tree_lock, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v);
- if(unlikely(!rv)) {
- free(v);
- 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(tree_lock, variable, hash);
-
- freez(variable);
- }
-
- return 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(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;
- if(*v != value) {
- *v = value;
-
- // if the host is streaming, send this variable upstream immediately
- rrdpush_sender_send_this_host_variable_now(host, rv);
- }
- }
-}
-
-// ----------------------------------------------------------------------------
-// RRDVAR lookup
-
-static calculated_number rrdvar2number(RRDVAR *rv) {
- switch(rv->type) {
- case RRDVAR_TYPE_CALCULATED_ALLOCATED:
- case RRDVAR_TYPE_CALCULATED: {
- calculated_number *n = (calculated_number *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_TIME_T: {
- time_t *n = (time_t *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_COLLECTED: {
- collected_number *n = (collected_number *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_TOTAL: {
- total_number *n = (total_number *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_INT: {
- int *n = (int *)rv->value;
- return *n;
- }
-
- default:
- error("I don't know how to convert RRDVAR type %u to calculated_number", rv->type);
- return NAN;
- }
-}
-
-int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result) {
- RRDSET *st = rc->rrdset;
- if(!st) return 0;
-
- RRDHOST *host = st->rrdhost;
- RRDVAR *rv;
-
- rv = rrdvar_index_find(&st->rrdvar_root_index, variable, hash);
- if(rv) {
- *result = rrdvar2number(rv);
- return 1;
- }
-
- rv = rrdvar_index_find(&st->rrdfamily->rrdvar_root_index, variable, hash);
- if(rv) {
- *result = rrdvar2number(rv);
- return 1;
- }
-
- rv = rrdvar_index_find(&host->rrdvar_root_index, variable, hash);
- if(rv) {
- *result = rrdvar2number(rv);
- return 1;
- }
-
- return 0;
-}
-
-// ----------------------------------------------------------------------------
-// RRDVAR to JSON
-
-struct variable2json_helper {
- BUFFER *buf;
- size_t counter;
-};
-
-static int single_variable2json(void *entry, void *data) {
- struct variable2json_helper *helper = (struct variable2json_helper *)data;
- RRDVAR *rv = (RRDVAR *)entry;
- calculated_number value = rrdvar2number(rv);
-
- if(unlikely(isnan(value) || isinf(value)))
- buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": null", helper->counter?",":"", rv->name);
- else
- buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": %0.5" LONG_DOUBLE_MODIFIER, helper->counter?",":"", rv->name, (LONG_DOUBLE)value);
-
- helper->counter++;
-
- return 0;
-}
-
-void health_api_v1_chart_variables2json(RRDSET *st, BUFFER *buf) {
- RRDHOST *host = st->rrdhost;
-
- struct variable2json_helper helper = {
- .buf = buf,
- .counter = 0
- };
-
- 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->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->rrdvar_root_index, single_variable2json, (void *)&helper);
- buffer_sprintf(buf, "\n\t},\n\t\"host\": \"%s\",\n\t\"host_variables\": {", host->hostname);
- helper.counter = 0;
- avl_traverse_lock(&host->rrdvar_root_index, single_variable2json, (void *)&helper);
- buffer_strcat(buf, "\n\t}\n}\n");
-}
-
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