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Diffstat (limited to '')
| -rw-r--r-- | libnetdata/health/health.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/libnetdata/health/health.c b/libnetdata/health/health.c new file mode 100644 index 0000000..74f7a02 --- /dev/null +++ b/libnetdata/health/health.c @@ -0,0 +1,173 @@ +#include "health.h" + +SILENCERS *silencers; + +/** + * Create Silencer + * + * Allocate a new silencer to Netdata. + * + * @return It returns the address off the silencer on success and NULL otherwise + */ +SILENCER *create_silencer(void) { + SILENCER *t = callocz(1, sizeof(SILENCER)); + debug(D_HEALTH, "HEALTH command API: Created empty silencer"); + + return t; +} + +/** + * Health Silencers add + * + * Add more one silencer to the list of silenecers. + * + * @param silencer + */ +void health_silencers_add(SILENCER *silencer) { + // Add the created instance to the linked list in silencers + silencer->next = silencers->silencers; + silencers->silencers = silencer; + debug(D_HEALTH, "HEALTH command API: Added silencer %s:%s:%s:%s:%s", silencer->alarms, + silencer->charts, silencer->contexts, silencer->hosts, silencer->families + ); +} + +/** + * Silencers Add Parameter + * + * Create a new silencer and adjust the variables + * + * @param silencer a pointer to the silencer that will be adjusted + * @param key the key value sent by client + * @param value the value sent to the key + * + * @return It returns the silencer configured on success and NULL otherwise + */ +SILENCER *health_silencers_addparam(SILENCER *silencer, char *key, char *value) { + static uint32_t + hash_alarm = 0, + hash_template = 0, + hash_chart = 0, + hash_context = 0, + hash_host = 0, + hash_families = 0; + + if (unlikely(!hash_alarm)) { + hash_alarm = simple_uhash(HEALTH_ALARM_KEY); + hash_template = simple_uhash(HEALTH_TEMPLATE_KEY); + hash_chart = simple_uhash(HEALTH_CHART_KEY); + hash_context = simple_uhash(HEALTH_CONTEXT_KEY); + hash_host = simple_uhash(HEALTH_HOST_KEY); + hash_families = simple_uhash(HEALTH_FAMILIES_KEY); + } + + uint32_t hash = simple_uhash(key); + if (unlikely(silencer == NULL)) { + if ( + (hash == hash_alarm && !strcasecmp(key, HEALTH_ALARM_KEY)) || + (hash == hash_template && !strcasecmp(key, HEALTH_TEMPLATE_KEY)) || + (hash == hash_chart && !strcasecmp(key, HEALTH_CHART_KEY)) || + (hash == hash_context && !strcasecmp(key, HEALTH_CONTEXT_KEY)) || + (hash == hash_host && !strcasecmp(key, HEALTH_HOST_KEY)) || + (hash == hash_families && !strcasecmp(key, HEALTH_FAMILIES_KEY)) + ) { + silencer = create_silencer(); + if(!silencer) { + error("Cannot add a new silencer to Netdata"); + return NULL; + } + } + } + + if (hash == hash_alarm && !strcasecmp(key, HEALTH_ALARM_KEY)) { + silencer->alarms = strdupz(value); + silencer->alarms_pattern = simple_pattern_create(silencer->alarms, NULL, SIMPLE_PATTERN_EXACT); + } else if (hash == hash_chart && !strcasecmp(key, HEALTH_CHART_KEY)) { + silencer->charts = strdupz(value); + silencer->charts_pattern = simple_pattern_create(silencer->charts, NULL, SIMPLE_PATTERN_EXACT); + } else if (hash == hash_context && !strcasecmp(key, HEALTH_CONTEXT_KEY)) { + silencer->contexts = strdupz(value); + silencer->contexts_pattern = simple_pattern_create(silencer->contexts, NULL, SIMPLE_PATTERN_EXACT); + } else if (hash == hash_host && !strcasecmp(key, HEALTH_HOST_KEY)) { + silencer->hosts = strdupz(value); + silencer->hosts_pattern = simple_pattern_create(silencer->hosts, NULL, SIMPLE_PATTERN_EXACT); + } else if (hash == hash_families && !strcasecmp(key, HEALTH_FAMILIES_KEY)) { + silencer->families = strdupz(value); + silencer->families_pattern = simple_pattern_create(silencer->families, NULL, SIMPLE_PATTERN_EXACT); + } + + return silencer; +} + +/** + * JSON Read Callback + * + * Callback called by netdata to create the silencer. + * + * @param e the main json structure + * + * @return It always return 0. + */ +int health_silencers_json_read_callback(JSON_ENTRY *e) +{ + switch(e->type) { + case JSON_OBJECT: +#ifndef ENABLE_JSONC + e->callback_function = health_silencers_json_read_callback; + if(strcmp(e->name,"")) { + // init silencer + debug(D_HEALTH, "JSON: Got object with a name, initializing new silencer for %s",e->name); +#endif + e->callback_data = create_silencer(); + if(e->callback_data) { + health_silencers_add(e->callback_data); + } +#ifndef ENABLE_JSONC + } +#endif + break; + + case JSON_ARRAY: + e->callback_function = health_silencers_json_read_callback; + break; + + case JSON_STRING: + if(!strcmp(e->name,"type")) { + debug(D_HEALTH, "JSON: Processing type=%s",e->data.string); + if (!strcmp(e->data.string,"SILENCE")) silencers->stype = STYPE_SILENCE_NOTIFICATIONS; + else if (!strcmp(e->data.string,"DISABLE")) silencers->stype = STYPE_DISABLE_ALARMS; + } else { + debug(D_HEALTH, "JSON: Adding %s=%s", e->name, e->data.string); + if (e->callback_data) + (void)health_silencers_addparam(e->callback_data, e->name, e->data.string); + } + break; + + case JSON_BOOLEAN: + debug(D_HEALTH, "JSON: Processing all_alarms"); + silencers->all_alarms=e->data.boolean?1:0; + break; + + case JSON_NUMBER: + case JSON_NULL: + break; + } + + return 0; +} + +/** + * Initialize Global Silencers + * + * Initialize the silencer for the whole netdata system. + * + * @return It returns 0 on success and -1 otherwise + */ +int health_initialize_global_silencers() { + silencers = mallocz(sizeof(SILENCERS)); + silencers->all_alarms=0; + silencers->stype=STYPE_NONE; + silencers->silencers=NULL; + + return 0; +}
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