+ submit(dom->ptr, "virt_cpu_total", NULL, &(value_t){.derive = cpuTime_new},
+ 1);
+}
+
+static void vcpu_submit(derive_t value, virDomainPtr dom, int vcpu_nr,
+ const char *type) {
+ char type_instance[DATA_MAX_NAME_LEN];
+
+ snprintf(type_instance, sizeof(type_instance), "%d", vcpu_nr);
+ submit(dom, type, type_instance, &(value_t){.derive = value}, 1);
+}
+
+static void disk_block_stats_submit(struct lv_block_stats *bstats,
+ virDomainPtr dom, const char *dev,
+ virDomainBlockInfoPtr binfo) {
+ char *dev_copy = strdup(dev);
+ const char *type_instance = dev_copy;
+
+ if (!dev_copy)
+ return;
+
+ if (blockdevice_format_basename && blockdevice_format == source)
+ type_instance = basename(dev_copy);
+
+ if (!type_instance) {
+ sfree(dev_copy);
+ return;
+ }
+
+ char flush_type_instance[DATA_MAX_NAME_LEN];
+ snprintf(flush_type_instance, sizeof(flush_type_instance), "flush-%s",
+ type_instance);
+
+ if ((bstats->bi.rd_req != -1) && (bstats->bi.wr_req != -1))
+ submit_derive2("disk_ops", (derive_t)bstats->bi.rd_req,
+ (derive_t)bstats->bi.wr_req, dom, type_instance);
+
+ if ((bstats->bi.rd_bytes != -1) && (bstats->bi.wr_bytes != -1))
+ submit_derive2("disk_octets", (derive_t)bstats->bi.rd_bytes,
+ (derive_t)bstats->bi.wr_bytes, dom, type_instance);
+
+ if (extra_stats & ex_stats_disk) {
+ if ((bstats->rd_total_times != -1) && (bstats->wr_total_times != -1))
+ submit_derive2("disk_time", (derive_t)bstats->rd_total_times,
+ (derive_t)bstats->wr_total_times, dom, type_instance);
+
+ if (bstats->fl_req != -1)
+ submit(dom, "total_requests", flush_type_instance,
+ &(value_t){.derive = (derive_t)bstats->fl_req}, 1);
+ if (bstats->fl_total_times != -1) {
+ derive_t value = bstats->fl_total_times / 1000; // ns -> ms
+ submit(dom, "total_time_in_ms", flush_type_instance,
+ &(value_t){.derive = value}, 1);
+ }
+ }
+
+ /* disk_allocation, disk_capacity and disk_physical are stored only
+ * if corresponding extrastats are set in collectd configuration file */
+ if ((extra_stats & ex_stats_disk_allocation) && binfo->allocation != -1)
+ submit(dom, "disk_allocation", type_instance,
+ &(value_t){.gauge = (gauge_t)binfo->allocation}, 1);
+
+ if ((extra_stats & ex_stats_disk_capacity) && binfo->capacity != -1)
+ submit(dom, "disk_capacity", type_instance,
+ &(value_t){.gauge = (gauge_t)binfo->capacity}, 1);
+
+ if ((extra_stats & ex_stats_disk_physical) && binfo->physical != -1)
+ submit(dom, "disk_physical", type_instance,
+ &(value_t){.gauge = (gauge_t)binfo->physical}, 1);
+
+ sfree(dev_copy);
+}
+
+/**
+ * Function for parsing ExtraStats configuration options.
+ * Result of parsing is stored under 'out_parsed_flags' pointer.
+ *
+ * Returns 0 in case of success and 1 in case of parsing error
+ */
+static int parse_ex_stats_flags(unsigned int *out_parsed_flags, char **exstats,
+ int numexstats) {
+ unsigned int ex_stats_flags = ex_stats_none;
+
+ assert(out_parsed_flags != NULL);
+
+ for (int i = 0; i < numexstats; i++) {
+ for (int j = 0; ex_stats_table[j].name != NULL; j++) {
+ if (strcasecmp(exstats[i], ex_stats_table[j].name) == 0) {
+ DEBUG(PLUGIN_NAME " plugin: enabling extra stats for '%s'",
+ ex_stats_table[j].name);
+ ex_stats_flags |= ex_stats_table[j].flag;
+ break;
+ }
+
+ if (ex_stats_table[j + 1].name == NULL) {
+ ERROR(PLUGIN_NAME " plugin: Unmatched ExtraStats option: %s",
+ exstats[i]);
+ return 1;
+ }
+ }
+ }
+
+ *out_parsed_flags = ex_stats_flags;
+ return 0;
+}
+
+static void domain_state_submit_notif(virDomainPtr dom, int state, int reason) {
+ if ((state < 0) || ((size_t)state >= STATIC_ARRAY_SIZE(domain_states))) {
+ ERROR(PLUGIN_NAME " plugin: Array index out of bounds: state=%d", state);
+ return;
+ }
+
+ char msg[DATA_MAX_NAME_LEN];
+ const char *state_str = domain_states[state];
+#ifdef HAVE_DOM_REASON
+ if ((reason < 0) ||
+ ((size_t)reason >= STATIC_ARRAY_SIZE(domain_reasons[0]))) {
+ ERROR(PLUGIN_NAME " plugin: Array index out of bounds: reason=%d", reason);
+ return;
+ }
+
+ const char *reason_str = domain_reasons[state][reason];
+ /* Array size for domain reasons is fixed, but different domain states can
+ * have different number of reasons. We need to check if reason was
+ * successfully parsed */
+ if (!reason_str) {
+ ERROR(PLUGIN_NAME " plugin: Invalid reason (%d) for domain state: %s",
+ reason, state_str);
+ return;
+ }
+#else
+ const char *reason_str = "N/A";
+#endif
+
+ snprintf(msg, sizeof(msg), "Domain state: %s. Reason: %s", state_str,
+ reason_str);
+
+ int severity;
+ switch (state) {
+ case VIR_DOMAIN_NOSTATE:
+ case VIR_DOMAIN_RUNNING:
+ case VIR_DOMAIN_SHUTDOWN:
+ case VIR_DOMAIN_SHUTOFF:
+ severity = NOTIF_OKAY;
+ break;
+ case VIR_DOMAIN_BLOCKED:
+ case VIR_DOMAIN_PAUSED:
+#ifdef DOM_STATE_PMSUSPENDED
+ case VIR_DOMAIN_PMSUSPENDED:
+#endif
+ severity = NOTIF_WARNING;
+ break;
+ case VIR_DOMAIN_CRASHED:
+ severity = NOTIF_FAILURE;
+ break;
+ default:
+ ERROR(PLUGIN_NAME " plugin: Unrecognized domain state (%d)", state);
+ return;
+ }
+ submit_notif(dom, severity, msg, "domain_state", NULL);
+}
+
+static int lv_init_ignorelists() {
+ if (il_domains == NULL)
+ il_domains = ignorelist_create(1);
+ if (il_block_devices == NULL)
+ il_block_devices = ignorelist_create(1);
+ if (il_interface_devices == NULL)
+ il_interface_devices = ignorelist_create(1);
+
+ if (!il_domains || !il_block_devices || !il_interface_devices)
+ return 1;
+
+ return 0;
+}
+
+/* Validates config option that may take multiple strings arguments.
+ * Returns 0 on success, -1 otherwise */
+static int check_config_multiple_string_entry(const oconfig_item_t *ci) {
+ if (ci == NULL) {
+ ERROR(PLUGIN_NAME " plugin: ci oconfig_item can't be NULL");
+ return -1;
+ }
+
+ if (ci->values_num < 1) {
+ ERROR(PLUGIN_NAME
+ " plugin: the '%s' option requires at least one string argument",
+ ci->key);
+ return -1;
+ }
+
+ for (int i = 0; i < ci->values_num; ++i) {
+ if (ci->values[i].type != OCONFIG_TYPE_STRING) {
+ ERROR(PLUGIN_NAME
+ " plugin: one of the '%s' options is not a valid string",
+ ci->key);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int lv_config(oconfig_item_t *ci) {
+ if (lv_init_ignorelists() != 0) {
+ ERROR(PLUGIN_NAME " plugin: lv_init_ignorelist failed.");
+ return -1;
+ }
+
+ for (int i = 0; i < ci->children_num; ++i) {
+ oconfig_item_t *c = ci->children + i;
+
+ if (strcasecmp(c->key, "Connection") == 0) {
+ if (cf_util_get_string(c, &conn_string) != 0 || conn_string == NULL)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "RefreshInterval") == 0) {
+ if (cf_util_get_int(c, &interval) != 0)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "Domain") == 0) {
+ char *domain_name = NULL;
+ if (cf_util_get_string(c, &domain_name) != 0)
+ return -1;
+
+ if (ignorelist_add(il_domains, domain_name)) {
+ ERROR(PLUGIN_NAME " plugin: Adding '%s' to domain-ignorelist failed",
+ domain_name);
+ sfree(domain_name);
+ return -1;
+ }
+
+ sfree(domain_name);
+ continue;
+ } else if (strcasecmp(c->key, "BlockDevice") == 0) {
+ char *device_name = NULL;
+ if (cf_util_get_string(c, &device_name) != 0)
+ return -1;
+
+ if (ignorelist_add(il_block_devices, device_name) != 0) {
+ ERROR(PLUGIN_NAME
+ " plugin: Adding '%s' to block-device-ignorelist failed",
+ device_name);
+ sfree(device_name);
+ return -1;
+ }
+
+ sfree(device_name);
+ continue;
+ } else if (strcasecmp(c->key, "BlockDeviceFormat") == 0) {
+ char *device_format = NULL;
+ if (cf_util_get_string(c, &device_format) != 0)
+ return -1;
+
+ if (strcasecmp(device_format, "target") == 0)
+ blockdevice_format = target;
+ else if (strcasecmp(device_format, "source") == 0)
+ blockdevice_format = source;
+ else {
+ ERROR(PLUGIN_NAME " plugin: unknown BlockDeviceFormat: %s",
+ device_format);
+ sfree(device_format);
+ return -1;
+ }
+
+ sfree(device_format);
+ continue;
+ } else if (strcasecmp(c->key, "BlockDeviceFormatBasename") == 0) {
+ if (cf_util_get_boolean(c, &blockdevice_format_basename) != 0)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "InterfaceDevice") == 0) {
+ char *interface_name = NULL;
+ if (cf_util_get_string(c, &interface_name) != 0)
+ return -1;
+
+ if (ignorelist_add(il_interface_devices, interface_name)) {
+ ERROR(PLUGIN_NAME " plugin: Adding '%s' to interface-ignorelist failed",
+ interface_name);
+ sfree(interface_name);
+ return -1;
+ }
+
+ sfree(interface_name);
+ continue;
+ } else if (strcasecmp(c->key, "IgnoreSelected") == 0) {
+ bool ignore_selected = false;
+ if (cf_util_get_boolean(c, &ignore_selected) != 0)
+ return -1;
+
+ if (ignore_selected) {
+ ignorelist_set_invert(il_domains, 0);
+ ignorelist_set_invert(il_block_devices, 0);
+ ignorelist_set_invert(il_interface_devices, 0);
+ } else {
+ ignorelist_set_invert(il_domains, 1);
+ ignorelist_set_invert(il_block_devices, 1);
+ ignorelist_set_invert(il_interface_devices, 1);
+ }
+
+ continue;
+ } else if (strcasecmp(c->key, "HostnameMetadataNS") == 0) {
+ if (cf_util_get_string(c, &hm_ns) != 0)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "HostnameMetadataXPath") == 0) {
+ if (cf_util_get_string(c, &hm_xpath) != 0)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "HostnameFormat") == 0) {
+ /* this option can take multiple strings arguments in one config line*/
+ if (check_config_multiple_string_entry(c) != 0) {
+ ERROR(PLUGIN_NAME " plugin: Could not get 'HostnameFormat' parameter");
+ return -1;
+ }
+
+ const int params_num = c->values_num;
+ for (int i = 0; i < params_num; ++i) {
+ const char *param_name = c->values[i].value.string;
+ if (strcasecmp(param_name, "hostname") == 0)
+ hostname_format[i] = hf_hostname;
+ else if (strcasecmp(param_name, "name") == 0)
+ hostname_format[i] = hf_name;
+ else if (strcasecmp(param_name, "uuid") == 0)
+ hostname_format[i] = hf_uuid;
+ else if (strcasecmp(param_name, "metadata") == 0)
+ hostname_format[i] = hf_metadata;
+ else {
+ ERROR(PLUGIN_NAME " plugin: unknown HostnameFormat field: %s",
+ param_name);
+ return -1;
+ }
+ }
+
+ for (int i = params_num; i < HF_MAX_FIELDS; ++i)
+ hostname_format[i] = hf_none;
+
+ continue;
+ } else if (strcasecmp(c->key, "PluginInstanceFormat") == 0) {
+ /* this option can handle list of string parameters in one line*/
+ if (check_config_multiple_string_entry(c) != 0) {
+ ERROR(PLUGIN_NAME
+ " plugin: Could not get 'PluginInstanceFormat' parameter");
+ return -1;
+ }
+
+ const int params_num = c->values_num;
+ for (int i = 0; i < params_num; ++i) {
+ const char *param_name = c->values[i].value.string;
+ if (strcasecmp(param_name, "none") == 0) {
+ plugin_instance_format[i] = plginst_none;
+ break;
+ } else if (strcasecmp(param_name, "name") == 0)
+ plugin_instance_format[i] = plginst_name;
+ else if (strcasecmp(param_name, "uuid") == 0)
+ plugin_instance_format[i] = plginst_uuid;
+ else if (strcasecmp(param_name, "metadata") == 0)
+ plugin_instance_format[i] = plginst_metadata;
+ else {
+ ERROR(PLUGIN_NAME " plugin: unknown PluginInstanceFormat field: %s",
+ param_name);
+
+ return -1;
+ }
+ }
+
+ for (int i = params_num; i < PLGINST_MAX_FIELDS; ++i)
+ plugin_instance_format[i] = plginst_none;
+
+ continue;
+ } else if (strcasecmp(c->key, "InterfaceFormat") == 0) {
+ char *format = NULL;
+ if (cf_util_get_string(c, &format) != 0)
+ return -1;
+
+ if (strcasecmp(format, "name") == 0)
+ interface_format = if_name;
+ else if (strcasecmp(format, "address") == 0)
+ interface_format = if_address;
+ else if (strcasecmp(format, "number") == 0)
+ interface_format = if_number;
+ else {
+ ERROR(PLUGIN_NAME " plugin: unknown InterfaceFormat: %s", format);
+ sfree(format);
+ return -1;
+ }
+
+ sfree(format);
+ continue;
+ } else if (strcasecmp(c->key, "Instances") == 0) {
+ if (cf_util_get_int(c, &nr_instances) != 0)
+ return -1;
+
+ if (nr_instances <= 0) {
+ ERROR(PLUGIN_NAME " plugin: Instances <= 0 makes no sense.");
+ return -1;
+ }
+ if (nr_instances > NR_INSTANCES_MAX) {
+ ERROR(PLUGIN_NAME " plugin: Instances=%i > NR_INSTANCES_MAX=%i"
+ " use a lower setting or recompile the plugin.",
+ nr_instances, NR_INSTANCES_MAX);
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME " plugin: configured %i instances", nr_instances);
+ continue;
+ } else if (strcasecmp(c->key, "ExtraStats") == 0) {
+ char *ex_str = NULL;
+
+ if (cf_util_get_string(c, &ex_str) != 0)
+ return -1;
+
+ char *exstats[EX_STATS_MAX_FIELDS];
+ int numexstats = strsplit(ex_str, exstats, STATIC_ARRAY_SIZE(exstats));
+ int status = parse_ex_stats_flags(&extra_stats, exstats, numexstats);
+ sfree(ex_str);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: parsing 'ExtraStats' option failed");
+ return status;
+ }
+
+#ifdef HAVE_JOB_STATS
+ if ((extra_stats & ex_stats_job_stats_completed) &&
+ (extra_stats & ex_stats_job_stats_background)) {
+ ERROR(PLUGIN_NAME " plugin: Invalid job stats configuration. Only one "
+ "type of job statistics can be collected at the same "
+ "time");
+ return -1;
+ }
+#endif
+
+ /* ExtraStats parsed successfully */
+ continue;
+ } else if (strcasecmp(c->key, "PersistentNotification") == 0) {
+ if (cf_util_get_boolean(c, &persistent_notification) != 0)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "ReportBlockDevices") == 0) {
+ if (cf_util_get_boolean(c, &report_block_devices) != 0)
+ return -1;
+
+ continue;
+ } else if (strcasecmp(c->key, "ReportNetworkInterfaces") == 0) {
+ if (cf_util_get_boolean(c, &report_network_interfaces) != 0)
+ return -1;
+
+ continue;
+ } else {
+ /* Unrecognised option. */
+ ERROR(PLUGIN_NAME " plugin: Unrecognized option: '%s'", c->key);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int lv_connect(void) {
+ if (conn == NULL) {
+ /* event implementation must be registered before connection is opened */
+ if (!persistent_notification)
+ if (register_event_impl() != 0)
+ return -1;
+
+/* `conn_string == NULL' is acceptable */
+#ifdef HAVE_FS_INFO
+ /* virDomainGetFSInfo requires full read-write access connection */
+ if (extra_stats & ex_stats_fs_info)
+ conn = virConnectOpen(conn_string);
+ else
+#endif
+ conn = virConnectOpenReadOnly(conn_string);
+ if (conn == NULL) {
+ c_complain(LOG_ERR, &conn_complain,
+ PLUGIN_NAME " plugin: Unable to connect: "
+ "virConnectOpen failed.");
+ return -1;
+ }
+ int status = virNodeGetInfo(conn, &nodeinfo);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virNodeGetInfo failed");
+ virConnectClose(conn);
+ conn = NULL;
+ return -1;
+ }
+
+ if (!persistent_notification)
+ if (start_event_loop(¬if_thread) != 0) {
+ virConnectClose(conn);
+ conn = NULL;
+ return -1;
+ }
+ }
+ c_release(LOG_NOTICE, &conn_complain,
+ PLUGIN_NAME " plugin: Connection established.");
+ return 0;
+}
+
+static void lv_disconnect(void) {
+ if (conn != NULL)
+ virConnectClose(conn);
+ conn = NULL;
+ WARNING(PLUGIN_NAME " plugin: closed connection to libvirt");
+}
+
+static int lv_domain_block_stats(virDomainPtr dom, const char *path,
+ struct lv_block_stats *bstats) {
+#ifdef HAVE_BLOCK_STATS_FLAGS
+ int nparams = 0;
+ if (virDomainBlockStatsFlags(dom, path, NULL, &nparams, 0) < 0 ||
+ nparams <= 0) {
+ VIRT_ERROR(conn, "getting the disk params count");
+ return -1;
+ }
+
+ virTypedParameterPtr params = calloc(nparams, sizeof(*params));
+ if (params == NULL) {
+ ERROR(PLUGIN_NAME " plugin: alloc(%i) for block=%s parameters failed.",
+ nparams, path);
+ return -1;
+ }
+
+ int rc = -1;
+ if (virDomainBlockStatsFlags(dom, path, params, &nparams, 0) < 0) {
+ VIRT_ERROR(conn, "getting the disk params values");
+ } else {
+ rc = get_block_stats(bstats, params, nparams);
+ }
+
+ virTypedParamsClear(params, nparams);
+ sfree(params);
+ return rc;
+#else
+ return virDomainBlockStats(dom, path, &(bstats->bi), sizeof(bstats->bi));
+#endif /* HAVE_BLOCK_STATS_FLAGS */
+}
+
+#ifdef HAVE_PERF_STATS
+static void perf_submit(virDomainStatsRecordPtr stats) {
+ for (int i = 0; i < stats->nparams; ++i) {
+ /* Replace '.' with '_' in event field to match other metrics' naming
+ * convention */
+ char *c = strchr(stats->params[i].field, '.');
+ if (c)
+ *c = '_';
+ submit(stats->dom, "perf", stats->params[i].field,
+ &(value_t){.derive = stats->params[i].value.ul}, 1);
+ }
+}
+
+static int get_perf_events(virDomainPtr domain) {
+ virDomainStatsRecordPtr *stats = NULL;
+ /* virDomainListGetStats requires a NULL terminated list of domains */
+ virDomainPtr domain_array[] = {domain, NULL};
+
+ int status =
+ virDomainListGetStats(domain_array, VIR_DOMAIN_STATS_PERF, &stats, 0);
+ if (status == -1) {
+ ERROR(PLUGIN_NAME " plugin: virDomainListGetStats failed with status %i.",
+ status);
+
+ virErrorPtr err = virConnGetLastError(conn);
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: perf");
+ extra_stats &= ~(ex_stats_perf);
+ }
+
+ return -1;
+ }
+
+ for (int i = 0; i < status; ++i)
+ perf_submit(stats[i]);
+
+ virDomainStatsRecordListFree(stats);
+ return 0;
+}
+#endif /* HAVE_PERF_STATS */
+
+static void vcpu_pin_submit(virDomainPtr dom, int max_cpus, int vcpu,
+ unsigned char *cpu_maps, int cpu_map_len) {
+ for (int cpu = 0; cpu < max_cpus; ++cpu) {
+ char type_instance[DATA_MAX_NAME_LEN];
+ bool is_set = VIR_CPU_USABLE(cpu_maps, cpu_map_len, vcpu, cpu);
+
+ snprintf(type_instance, sizeof(type_instance), "vcpu_%d-cpu_%d", vcpu, cpu);
+ submit(dom, "cpu_affinity", type_instance, &(value_t){.gauge = is_set}, 1);
+ }
+}
+
+static int get_vcpu_stats(virDomainPtr domain, unsigned short nr_virt_cpu) {
+ int max_cpus = VIR_NODEINFO_MAXCPUS(nodeinfo);
+
+ virVcpuInfoPtr vinfo = calloc(nr_virt_cpu, sizeof(*vinfo));
+ if (vinfo == NULL) {
+ ERROR(PLUGIN_NAME " plugin: calloc failed.");
+ return -1;
+ }
+
+ int cpu_map_len = 0;
+ unsigned char *cpumaps = NULL;
+ if (extra_stats & ex_stats_vcpupin) {
+ cpu_map_len = VIR_CPU_MAPLEN(max_cpus);
+ cpumaps = calloc(nr_virt_cpu, cpu_map_len);
+
+ if (cpumaps == NULL) {
+ ERROR(PLUGIN_NAME " plugin: calloc failed.");
+ sfree(vinfo);
+ return -1;
+ }
+ }
+
+ int status =
+ virDomainGetVcpus(domain, vinfo, nr_virt_cpu, cpumaps, cpu_map_len);
+ if (status < 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
+ status);
+
+ virErrorPtr err = virConnGetLastError(conn);
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+ if (extra_stats & ex_stats_vcpu)
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: vcpu");
+ if (extra_stats & ex_stats_vcpupin)
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: vcpupin");
+ extra_stats &= ~(ex_stats_vcpu | ex_stats_vcpupin);
+ }
+
+ sfree(cpumaps);
+ sfree(vinfo);
+ return -1;
+ }
+
+ for (int i = 0; i < nr_virt_cpu; ++i) {
+ if (extra_stats & ex_stats_vcpu)
+ vcpu_submit(vinfo[i].cpuTime, domain, vinfo[i].number, "virt_vcpu");
+ if (extra_stats & ex_stats_vcpupin)
+ vcpu_pin_submit(domain, max_cpus, i, cpumaps, cpu_map_len);
+ }
+
+ sfree(cpumaps);
+ sfree(vinfo);
+ return 0;
+}
+
+#ifdef HAVE_CPU_STATS
+static int get_pcpu_stats(virDomainPtr dom) {
+ int nparams = virDomainGetCPUStats(dom, NULL, 0, -1, 1, 0);
+ if (nparams < 0) {
+ VIRT_ERROR(conn, "getting the CPU params count");
+
+ virErrorPtr err = virConnGetLastError(conn);
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: pcpu");
+ extra_stats &= ~(ex_stats_pcpu);
+ }
+
+ return -1;
+ }
+
+ virTypedParameterPtr param = calloc(nparams, sizeof(*param));
+ if (param == NULL) {
+ ERROR(PLUGIN_NAME " plugin: alloc(%i) for cpu parameters failed.", nparams);
+ return -1;
+ }
+
+ int ret = virDomainGetCPUStats(dom, param, nparams, -1, 1, 0); // total stats.
+ if (ret < 0) {
+ virTypedParamsClear(param, nparams);
+ sfree(param);
+ VIRT_ERROR(conn, "getting the CPU params values");
+ return -1;
+ }
+
+ unsigned long long total_user_cpu_time = 0;
+ unsigned long long total_syst_cpu_time = 0;
+
+ for (int i = 0; i < nparams; ++i) {
+ if (!strcmp(param[i].field, "user_time"))
+ total_user_cpu_time = param[i].value.ul;
+ else if (!strcmp(param[i].field, "system_time"))
+ total_syst_cpu_time = param[i].value.ul;
+ }
+
+ if (total_user_cpu_time > 0 || total_syst_cpu_time > 0)
+ submit_derive2("ps_cputime", total_user_cpu_time, total_syst_cpu_time, dom,
+ NULL);
+
+ virTypedParamsClear(param, nparams);
+ sfree(param);
+
+ return 0;
+}
+#endif /* HAVE_CPU_STATS */
+
+#ifdef HAVE_DOM_REASON
+static int submit_domain_state(virDomainPtr domain) {
+ int domain_state = 0;
+ int domain_reason = 0;
+
+ int status = virDomainGetState(domain, &domain_state, &domain_reason, 0);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetState failed with status %i.",
+ status);
+ return status;
+ }
+
+ value_t values[] = {
+ {.gauge = (gauge_t)domain_state}, {.gauge = (gauge_t)domain_reason},
+ };
+
+ submit(domain, "domain_state", NULL, values, STATIC_ARRAY_SIZE(values));
+
+ return 0;
+}
+
+#ifdef HAVE_LIST_ALL_DOMAINS
+static int get_domain_state_notify(virDomainPtr domain) {
+ int domain_state = 0;
+ int domain_reason = 0;
+
+ int status = virDomainGetState(domain, &domain_state, &domain_reason, 0);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetState failed with status %i.",
+ status);
+ return status;
+ }
+
+ domain_state_submit_notif(domain, domain_state, domain_reason);
+
+ return status;
+}
+#endif /* HAVE_LIST_ALL_DOMAINS */
+#endif /* HAVE_DOM_REASON */
+
+static int get_memory_stats(virDomainPtr domain) {
+ virDomainMemoryStatPtr minfo =
+ calloc(VIR_DOMAIN_MEMORY_STAT_NR, sizeof(*minfo));
+ if (minfo == NULL) {
+ ERROR(PLUGIN_NAME " plugin: calloc failed.");
+ return -1;
+ }
+
+ int mem_stats =
+ virDomainMemoryStats(domain, minfo, VIR_DOMAIN_MEMORY_STAT_NR, 0);
+ if (mem_stats < 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainMemoryStats failed with mem_stats %i.",
+ mem_stats);
+ sfree(minfo);
+
+ virErrorPtr err = virConnGetLastError(conn);
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: memory");
+ extra_stats &= ~(ex_stats_memory);
+ }
+
+ return -1;
+ }
+
+ derive_t swap_in = -1;
+ derive_t swap_out = -1;
+ derive_t min_flt = -1;
+ derive_t maj_flt = -1;
+
+ for (int i = 0; i < mem_stats; i++) {
+ if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_SWAP_IN)
+ swap_in = minfo[i].val;
+ else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_SWAP_OUT)
+ swap_out = minfo[i].val;
+ else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_MINOR_FAULT)
+ min_flt = minfo[i].val;
+ else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_MAJOR_FAULT)
+ maj_flt = minfo[i].val;
+#ifdef LIBVIR_CHECK_VERSION
+#if LIBVIR_CHECK_VERSION(2, 1, 0)
+ else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_LAST_UPDATE)
+ /* Skip 'last_update' reporting as that is not memory but timestamp */
+ continue;
+#endif
+#endif
+ else
+ memory_stats_submit((gauge_t)minfo[i].val * 1024, domain, minfo[i].tag);
+ }
+
+ if (swap_in > 0 || swap_out > 0) {
+ submit(domain, "swap_io", "in", &(value_t){.gauge = swap_in}, 1);
+ submit(domain, "swap_io", "out", &(value_t){.gauge = swap_out}, 1);
+ }
+
+ if (min_flt > 0 || maj_flt > 0) {
+ value_t values[] = {
+ {.gauge = (gauge_t)min_flt}, {.gauge = (gauge_t)maj_flt},
+ };
+ submit(domain, "ps_pagefaults", NULL, values, STATIC_ARRAY_SIZE(values));
+ }
+
+ sfree(minfo);
+ return 0;
+}
+
+#ifdef HAVE_DISK_ERR
+static void disk_err_submit(virDomainPtr domain,
+ virDomainDiskErrorPtr disk_err) {
+ submit(domain, "disk_error", disk_err->disk,
+ &(value_t){.gauge = disk_err->error}, 1);
+}
+
+static int get_disk_err(virDomainPtr domain) {
+ /* Get preferred size of disk errors array */
+ int disk_err_count = virDomainGetDiskErrors(domain, NULL, 0, 0);
+ if (disk_err_count == -1) {
+ ERROR(PLUGIN_NAME
+ " plugin: failed to get preferred size of disk errors array");
+
+ virErrorPtr err = virConnGetLastError(conn);
+
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: disk_err");
+ extra_stats &= ~(ex_stats_disk_err);
+ }
+
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME
+ " plugin: preferred size of disk errors array: %d for domain %s",
+ disk_err_count, virDomainGetName(domain));
+ virDomainDiskError disk_err[disk_err_count];
+
+ disk_err_count = virDomainGetDiskErrors(domain, disk_err, disk_err_count, 0);
+ if (disk_err_count == -1) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetDiskErrors failed with status %d",
+ disk_err_count);
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME " plugin: detected %d disk errors in domain %s",
+ disk_err_count, virDomainGetName(domain));
+
+ for (int i = 0; i < disk_err_count; ++i) {
+ disk_err_submit(domain, &disk_err[i]);
+ sfree(disk_err[i].disk);
+ }
+
+ return 0;
+}
+#endif /* HAVE_DISK_ERR */
+
+static int get_block_device_stats(struct block_device *block_dev) {
+ if (!block_dev) {
+ ERROR(PLUGIN_NAME " plugin: get_block_stats NULL pointer");
+ return -1;
+ }
+
+ virDomainBlockInfo binfo;
+ init_block_info(&binfo);
+
+ /* Fetching block info stats only if needed*/
+ if (extra_stats & (ex_stats_disk_allocation | ex_stats_disk_capacity |
+ ex_stats_disk_physical)) {
+ /* Block info statistics can be only fetched from devices with 'source'
+ * defined */
+ if (block_dev->has_source) {
+ if (virDomainGetBlockInfo(block_dev->dom, block_dev->path, &binfo, 0) <
+ 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetBlockInfo failed for path: %s",
+ block_dev->path);
+
+ virErrorPtr err = virConnGetLastError(conn);
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+
+ if (extra_stats & ex_stats_disk_allocation)
+ ERROR(PLUGIN_NAME " plugin: Disabled unsupported ExtraStats "
+ "selector: disk_allocation");
+ if (extra_stats & ex_stats_disk_capacity)
+ ERROR(PLUGIN_NAME " plugin: Disabled unsupported ExtraStats "
+ "selector: disk_capacity");
+ if (extra_stats & ex_stats_disk_physical)
+ ERROR(PLUGIN_NAME " plugin: Disabled unsupported ExtraStats "
+ "selector: disk_physical");
+
+ extra_stats &= ~(ex_stats_disk_allocation | ex_stats_disk_capacity |
+ ex_stats_disk_physical);
+ }
+
+ return -1;
+ }
+ }
+ }
+
+ struct lv_block_stats bstats;
+ init_block_stats(&bstats);
+
+ if (lv_domain_block_stats(block_dev->dom, block_dev->path, &bstats) < 0) {
+ ERROR(PLUGIN_NAME " plugin: lv_domain_block_stats failed");
+ return -1;
+ }
+
+ disk_block_stats_submit(&bstats, block_dev->dom, block_dev->path, &binfo);
+ return 0;
+}
+
+#ifdef HAVE_FS_INFO
+
+#define NM_ADD_ITEM(_fun, _name, _val) \
+ do { \
+ ret = _fun(¬if, _name, _val); \
+ if (ret != 0) { \
+ ERROR(PLUGIN_NAME " plugin: failed to add notification metadata"); \
+ goto cleanup; \
+ } \
+ } while (0)
+
+#define NM_ADD_STR_ITEMS(_items, _size) \
+ do { \
+ for (size_t _i = 0; _i < _size; ++_i) { \
+ DEBUG(PLUGIN_NAME \
+ " plugin: Adding notification metadata name=%s value=%s", \
+ _items[_i].name, _items[_i].value); \
+ NM_ADD_ITEM(plugin_notification_meta_add_string, _items[_i].name, \
+ _items[_i].value); \
+ } \
+ } while (0)
+
+static int fs_info_notify(virDomainPtr domain, virDomainFSInfoPtr fs_info) {
+ notification_t notif;
+ int ret = 0;
+
+ /* Local struct, just for the purpose of this function. */
+ typedef struct nm_str_item_s {
+ const char *name;
+ const char *value;
+ } nm_str_item_t;
+
+ nm_str_item_t fs_dev_alias[fs_info->ndevAlias];
+ nm_str_item_t fs_str_items[] = {
+ {.name = "mountpoint", .value = fs_info->mountpoint},
+ {.name = "name", .value = fs_info->name},
+ {.name = "fstype", .value = fs_info->fstype}};
+
+ for (size_t i = 0; i < fs_info->ndevAlias; ++i) {
+ fs_dev_alias[i].name = "devAlias";
+ fs_dev_alias[i].value = fs_info->devAlias[i];
+ }
+
+ init_notif(¬if, domain, NOTIF_OKAY, "File system information",
+ "file_system", NULL);
+ NM_ADD_STR_ITEMS(fs_str_items, STATIC_ARRAY_SIZE(fs_str_items));
+ NM_ADD_ITEM(plugin_notification_meta_add_unsigned_int, "ndevAlias",
+ fs_info->ndevAlias);
+ NM_ADD_STR_ITEMS(fs_dev_alias, fs_info->ndevAlias);
+
+ plugin_dispatch_notification(¬if);
+
+cleanup:
+ if (notif.meta)
+ plugin_notification_meta_free(notif.meta);
+ return ret;
+}
+
+#undef RETURN_ON_ERR
+#undef NM_ADD_STR_ITEMS
+
+static int get_fs_info(virDomainPtr domain) {
+ virDomainFSInfoPtr *fs_info = NULL;
+ int ret = 0;
+
+ int mount_points_cnt = virDomainGetFSInfo(domain, &fs_info, 0);
+ if (mount_points_cnt == -1) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetFSInfo failed: %d",
+ mount_points_cnt);
+
+ virErrorPtr err = virConnGetLastError(conn);
+ if (err->code == VIR_ERR_NO_SUPPORT) {
+ ERROR(PLUGIN_NAME
+ " plugin: Disabled unsupported ExtraStats selector: fs_info");
+ extra_stats &= ~(ex_stats_fs_info);
+ }
+
+ return -1;
+ }
+
+ for (int i = 0; i < mount_points_cnt; ++i) {
+ if (fs_info_notify(domain, fs_info[i]) != 0) {
+ ERROR(PLUGIN_NAME " plugin: failed to send file system notification "
+ "for mount point %s",
+ fs_info[i]->mountpoint);
+ ret = -1;
+ }
+ virDomainFSInfoFree(fs_info[i]);
+ }
+
+ sfree(fs_info);
+ return ret;
+}
+
+#endif /* HAVE_FS_INFO */
+
+#ifdef HAVE_JOB_STATS
+static void job_stats_submit(virDomainPtr domain, virTypedParameterPtr param) {
+ value_t vl = {0};
+
+ if (param->type == VIR_TYPED_PARAM_INT)
+ vl.derive = param->value.i;
+ else if (param->type == VIR_TYPED_PARAM_UINT)
+ vl.derive = param->value.ui;
+ else if (param->type == VIR_TYPED_PARAM_LLONG)
+ vl.derive = param->value.l;
+ else if (param->type == VIR_TYPED_PARAM_ULLONG)
+ vl.derive = param->value.ul;
+ else if (param->type == VIR_TYPED_PARAM_DOUBLE)
+ vl.derive = param->value.d;
+ else if (param->type == VIR_TYPED_PARAM_BOOLEAN)
+ vl.derive = param->value.b;
+ else if (param->type == VIR_TYPED_PARAM_STRING) {
+ submit_notif(domain, NOTIF_OKAY, param->value.s, "job_stats", param->field);
+ return;
+ } else {
+ ERROR(PLUGIN_NAME " plugin: unrecognized virTypedParameterType");
+ return;
+ }
+
+ submit(domain, "job_stats", param->field, &vl, 1);
+}
+
+static int get_job_stats(virDomainPtr domain) {
+ int job_type = 0;
+ int nparams = 0;
+ virTypedParameterPtr params = NULL;
+ int flags = (extra_stats & ex_stats_job_stats_completed)
+ ? VIR_DOMAIN_JOB_STATS_COMPLETED
+ : 0;
+
+ int ret = virDomainGetJobStats(domain, &job_type, ¶ms, &nparams, flags);
+ if (ret != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetJobStats failed: %d", ret);
+
+ virErrorPtr err = virConnGetLastError(conn);
+ // VIR_ERR_INVALID_ARG returned when VIR_DOMAIN_JOB_STATS_COMPLETED flag is
+ // not supported by driver
+ if (err->code == VIR_ERR_NO_SUPPORT || err->code == VIR_ERR_INVALID_ARG) {
+ if (extra_stats & ex_stats_job_stats_completed)
+ ERROR(PLUGIN_NAME " plugin: Disabled unsupported ExtraStats selector: "
+ "job_stats_completed");
+ if (extra_stats & ex_stats_job_stats_background)
+ ERROR(PLUGIN_NAME " plugin: Disabled unsupported ExtraStats selector: "
+ "job_stats_background");
+ extra_stats &=
+ ~(ex_stats_job_stats_completed | ex_stats_job_stats_background);
+ }
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME " plugin: job_type=%d nparams=%d", job_type, nparams);
+
+ for (int i = 0; i < nparams; ++i) {
+ DEBUG(PLUGIN_NAME " plugin: param[%d] field=%s type=%d", i, params[i].field,
+ params[i].type);
+ job_stats_submit(domain, ¶ms[i]);
+ }
+
+ virTypedParamsFree(params, nparams);
+ return 0;
+}
+#endif /* HAVE_JOB_STATS */
+
+static int get_domain_metrics(domain_t *domain) {
+ if (!domain || !domain->ptr) {
+ ERROR(PLUGIN_NAME " plugin: get_domain_metrics: NULL pointer");
+ return -1;
+ }
+
+ virDomainInfo info;
+ int status = virDomainGetInfo(domain->ptr, &info);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+ return -1;
+ }
+
+ if (extra_stats & ex_stats_domain_state) {
+#ifdef HAVE_DOM_REASON
+ /* At this point we already know domain's state from virDomainGetInfo call,
+ * however it doesn't provide a reason for entering particular state.
+ * We need to get it from virDomainGetState.
+ */
+ GET_STATS(submit_domain_state, "domain reason", domain->ptr);
+#endif
+ }
+
+ /* Gather remaining stats only for running domains */
+ if (info.state != VIR_DOMAIN_RUNNING)
+ return 0;
+
+#ifdef HAVE_CPU_STATS
+ if (extra_stats & ex_stats_pcpu)
+ get_pcpu_stats(domain->ptr);
+#endif
+
+ cpu_submit(domain, info.cpuTime);
+
+ memory_submit(domain->ptr, (gauge_t)info.memory * 1024);
+
+ if (extra_stats & (ex_stats_vcpu | ex_stats_vcpupin))
+ GET_STATS(get_vcpu_stats, "vcpu stats", domain->ptr, info.nrVirtCpu);
+ if (extra_stats & ex_stats_memory)
+ GET_STATS(get_memory_stats, "memory stats", domain->ptr);
+
+#ifdef HAVE_PERF_STATS
+ if (extra_stats & ex_stats_perf)
+ GET_STATS(get_perf_events, "performance monitoring events", domain->ptr);
+#endif
+
+#ifdef HAVE_FS_INFO
+ if (extra_stats & ex_stats_fs_info)
+ GET_STATS(get_fs_info, "file system info", domain->ptr);
+#endif
+
+#ifdef HAVE_DISK_ERR
+ if (extra_stats & ex_stats_disk_err)
+ GET_STATS(get_disk_err, "disk errors", domain->ptr);
+#endif
+
+#ifdef HAVE_JOB_STATS
+ if (extra_stats &
+ (ex_stats_job_stats_completed | ex_stats_job_stats_background))
+ GET_STATS(get_job_stats, "job stats", domain->ptr);
+#endif
+
+ /* Update cached virDomainInfo. It has to be done after cpu_submit */
+ memcpy(&domain->info, &info, sizeof(domain->info));
+
+ return 0;
+}
+
+static int get_if_dev_stats(struct interface_device *if_dev) {
+ virDomainInterfaceStatsStruct stats = {0};
+ char *display_name = NULL;
+
+ if (!if_dev) {
+ ERROR(PLUGIN_NAME " plugin: get_if_dev_stats: NULL pointer");
+ return -1;
+ }
+
+ switch (interface_format) {
+ case if_address:
+ display_name = if_dev->address;
+ break;
+ case if_number:
+ display_name = if_dev->number;
+ break;
+ case if_name:
+ default:
+ display_name = if_dev->path;
+ }
+
+ if (virDomainInterfaceStats(if_dev->dom, if_dev->path, &stats,
+ sizeof(stats)) != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainInterfaceStats failed");
+ return -1;
+ }
+
+ if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
+ submit_derive2("if_octets", (derive_t)stats.rx_bytes,
+ (derive_t)stats.tx_bytes, if_dev->dom, display_name);
+
+ if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
+ submit_derive2("if_packets", (derive_t)stats.rx_packets,
+ (derive_t)stats.tx_packets, if_dev->dom, display_name);
+
+ if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
+ submit_derive2("if_errors", (derive_t)stats.rx_errs,
+ (derive_t)stats.tx_errs, if_dev->dom, display_name);
+
+ if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
+ submit_derive2("if_dropped", (derive_t)stats.rx_drop,
+ (derive_t)stats.tx_drop, if_dev->dom, display_name);
+ return 0;
+}
+
+static int domain_lifecycle_event_cb(__attribute__((unused)) virConnectPtr con_,
+ virDomainPtr dom, int event, int detail,
+ __attribute__((unused)) void *opaque) {
+ int domain_state = map_domain_event_to_state(event);
+ int domain_reason = 0; /* 0 means UNKNOWN reason for any state */
+#ifdef HAVE_DOM_REASON
+ domain_reason = map_domain_event_detail_to_reason(event, detail);
+#endif
+ domain_state_submit_notif(dom, domain_state, domain_reason);
+
+ return 0;
+}
+
+static void virt_eventloop_timeout_cb(int timer ATTRIBUTE_UNUSED,
+ void *timer_info) {}
+
+static int register_event_impl(void) {
+ if (virEventRegisterDefaultImpl() < 0) {
+ virErrorPtr err = virGetLastError();
+ ERROR(PLUGIN_NAME
+ " plugin: error while event implementation registering: %s",
+ err && err->message ? err->message : "Unknown error");
+ return -1;
+ }
+
+ if (virEventAddTimeout(CDTIME_T_TO_MS(plugin_get_interval()),
+ virt_eventloop_timeout_cb, NULL, NULL) < 0) {
+ virErrorPtr err = virGetLastError();
+ ERROR(PLUGIN_NAME " plugin: virEventAddTimeout failed: %s",
+ err && err->message ? err->message : "Unknown error");
+ return -1;
+ }
+
+ return 0;
+}
+
+static void virt_notif_thread_set_active(virt_notif_thread_t *thread_data,
+ const bool active) {
+ assert(thread_data != NULL);
+ pthread_mutex_lock(&thread_data->active_mutex);
+ thread_data->is_active = active;
+ pthread_mutex_unlock(&thread_data->active_mutex);
+}
+
+static bool virt_notif_thread_is_active(virt_notif_thread_t *thread_data) {
+ bool active = false;
+
+ assert(thread_data != NULL);
+ pthread_mutex_lock(&thread_data->active_mutex);
+ active = thread_data->is_active;
+ pthread_mutex_unlock(&thread_data->active_mutex);
+
+ return active;
+}
+
+/* worker function running default event implementation */
+static void *event_loop_worker(void *arg) {
+ virt_notif_thread_t *thread_data = (virt_notif_thread_t *)arg;
+
+ while (virt_notif_thread_is_active(thread_data)) {
+ if (virEventRunDefaultImpl() < 0) {
+ virErrorPtr err = virGetLastError();
+ ERROR(PLUGIN_NAME " plugin: failed to run event loop: %s\n",
+ err && err->message ? err->message : "Unknown error");
+ }
+ }
+
+ return NULL;
+}
+
+static int virt_notif_thread_init(virt_notif_thread_t *thread_data) {
+ assert(thread_data != NULL);
+
+ int ret = pthread_mutex_init(&thread_data->active_mutex, NULL);
+ if (ret != 0) {
+ ERROR(PLUGIN_NAME " plugin: Failed to initialize mutex, err %u", ret);
+ return ret;
+ }
+
+ /**
+ * '0' and positive integers are meaningful ID's, therefore setting
+ * domain_event_cb_id to '-1'
+ */
+ thread_data->domain_event_cb_id = -1;
+ pthread_mutex_lock(&thread_data->active_mutex);
+ thread_data->is_active = false;
+ pthread_mutex_unlock(&thread_data->active_mutex);
+
+ return 0;
+}
+
+/* register domain event callback and start event loop thread */
+static int start_event_loop(virt_notif_thread_t *thread_data) {
+ assert(thread_data != NULL);
+ thread_data->domain_event_cb_id = virConnectDomainEventRegisterAny(
+ conn, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE,
+ VIR_DOMAIN_EVENT_CALLBACK(domain_lifecycle_event_cb), NULL, NULL);
+ if (thread_data->domain_event_cb_id == -1) {
+ ERROR(PLUGIN_NAME " plugin: error while callback registering");
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME " plugin: starting event loop");
+
+ virt_notif_thread_set_active(thread_data, 1);
+ if (pthread_create(&thread_data->event_loop_tid, NULL, event_loop_worker,
+ thread_data)) {
+ ERROR(PLUGIN_NAME " plugin: failed event loop thread creation");
+ virt_notif_thread_set_active(thread_data, 0);
+ virConnectDomainEventDeregisterAny(conn, thread_data->domain_event_cb_id);
+ thread_data->domain_event_cb_id = -1;
+ return -1;
+ }
+
+ return 0;
+}
+
+/* stop event loop thread and deregister callback */
+static void stop_event_loop(virt_notif_thread_t *thread_data) {
+
+ DEBUG(PLUGIN_NAME " plugin: stopping event loop");
+
+ /* Stopping loop */
+ if (virt_notif_thread_is_active(thread_data)) {
+ virt_notif_thread_set_active(thread_data, 0);
+ if (pthread_join(notif_thread.event_loop_tid, NULL) != 0)
+ ERROR(PLUGIN_NAME " plugin: stopping notification thread failed");
+ }
+
+ /* ... and de-registering event handler */
+ if (conn != NULL && thread_data->domain_event_cb_id != -1) {
+ virConnectDomainEventDeregisterAny(conn, thread_data->domain_event_cb_id);
+ thread_data->domain_event_cb_id = -1;
+ }
+}
+
+static int persistent_domains_state_notification(void) {
+ int status = 0;
+ int n;
+#ifdef HAVE_LIST_ALL_DOMAINS
+ virDomainPtr *domains = NULL;
+ n = virConnectListAllDomains(conn, &domains,
+ VIR_CONNECT_LIST_DOMAINS_PERSISTENT);
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading list of persistent domains");
+ status = -1;
+ } else {
+ DEBUG(PLUGIN_NAME " plugin: getting state of %i persistent domains", n);
+ /* Fetch each persistent domain's state and notify it */
+ int n_notified = n;
+ for (int i = 0; i < n; ++i) {
+ status = get_domain_state_notify(domains[i]);
+ if (status != 0) {
+ n_notified--;
+ ERROR(PLUGIN_NAME " plugin: could not notify state of domain %s",
+ virDomainGetName(domains[i]));
+ }
+ virDomainFree(domains[i]);
+ }
+
+ sfree(domains);
+ DEBUG(PLUGIN_NAME " plugin: notified state of %i persistent domains",
+ n_notified);
+ }
+#else
+ n = virConnectNumOfDomains(conn);
+ if (n > 0) {
+ int *domids;
+ /* Get list of domains. */
+ domids = calloc(n, sizeof(*domids));
+ if (domids == NULL) {
+ ERROR(PLUGIN_NAME " plugin: calloc failed.");
+ return -1;
+ }
+ n = virConnectListDomains(conn, domids, n);
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading list of domains");
+ sfree(domids);
+ return -1;
+ }
+ /* Fetch info of each active domain and notify it */
+ for (int i = 0; i < n; ++i) {
+ virDomainInfo info;
+ virDomainPtr dom = NULL;
+ dom = virDomainLookupByID(conn, domids[i]);
+ if (dom == NULL) {
+ VIRT_ERROR(conn, "virDomainLookupByID");
+ /* Could be that the domain went away -- ignore it anyway. */
+ continue;
+ }
+ status = virDomainGetInfo(dom, &info);
+ if (status == 0)
+ /* virDomainGetState is not available. Submit 0, which corresponds to
+ * unknown reason. */
+ domain_state_submit_notif(dom, info.state, 0);
+ else
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+
+ virDomainFree(dom);
+ }
+ sfree(domids);
+ }
+#endif
+
+ return status;
+}
+
+static int lv_read(user_data_t *ud) {
+ if (ud->data == NULL) {
+ ERROR(PLUGIN_NAME " plugin: NULL userdata");
+ return -1;