interface_devices[i].path);
#endif
- /* Get CPU usage, memory, VCPU usage for each domain. */
- for (int i = 0; i < nr_domains; ++i) {
- virDomainInfo info;
- virVcpuInfoPtr vinfo = NULL;
- virDomainMemoryStatPtr minfo = NULL;
- int status;
-
- status = virDomainGetInfo (domains[i], &info);
- if (status != 0)
- {
- ERROR (PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
- status);
- continue;
- }
+ /* Get CPU usage, memory, VCPU usage for each domain. */
+ for (int i = 0; i < state->nr_domains; ++i) {
+ struct lv_info info;
+ virVcpuInfoPtr vinfo = NULL;
+ virDomainMemoryStatPtr minfo = NULL;
+ int status;
+
+ init_lv_info(&info);
+ status = lv_domain_info(state->domains[i], &info);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+ continue;
+ }
- if (info.state != VIR_DOMAIN_RUNNING)
- {
- /* only gather stats for running domains */
- continue;
- }
+ pcpu_submit(state->domains[i], &info);
+ cpu_submit(info.di.cpuTime, state->domains[i], "virt_cpu_total");
+ memory_submit((gauge_t)info.di.memory * 1024, state->domains[i]);
- cpu_submit (info.cpuTime, domains[i], "virt_cpu_total");
- memory_submit ((gauge_t) info.memory * 1024, domains[i]);
+ vinfo = malloc(info.di.nrVirtCpu * sizeof(vinfo[0]));
+ if (vinfo == NULL) {
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ continue;
+ }
- vinfo = malloc (info.nrVirtCpu * sizeof (vinfo[0]));
- if (vinfo == NULL) {
- ERROR (PLUGIN_NAME " plugin: malloc failed.");
- continue;
- }
+ status = virDomainGetVcpus(state->domains[i], vinfo, info.di.nrVirtCpu,
+ /* cpu map = */ NULL, /* cpu map length = */ 0);
+ if (status < 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
+ status);
+ sfree(vinfo);
+ continue;
+ }
- status = virDomainGetVcpus (domains[i], vinfo, info.nrVirtCpu,
- /* cpu map = */ NULL, /* cpu map length = */ 0);
- if (status < 0)
- {
- ERROR (PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
- status);
- sfree (vinfo);
- continue;
- }
+ for (int j = 0; j < info.di.nrVirtCpu; ++j)
+ vcpu_submit(vinfo[j].cpuTime, state->domains[i], vinfo[j].number,
+ "virt_vcpu");
- for (int j = 0; j < info.nrVirtCpu; ++j)
- vcpu_submit (vinfo[j].cpuTime,
- domains[i], vinfo[j].number, "virt_vcpu");
+ sfree(vinfo);
- sfree (vinfo);
+ minfo =
+ malloc(VIR_DOMAIN_MEMORY_STAT_NR * sizeof(virDomainMemoryStatStruct));
+ if (minfo == NULL) {
+ ERROR("virt plugin: malloc failed.");
+ continue;
+ }
- minfo = malloc (VIR_DOMAIN_MEMORY_STAT_NR * sizeof (virDomainMemoryStatStruct));
- if (minfo == NULL) {
- ERROR ("virt plugin: malloc failed.");
- continue;
- }
+ status = virDomainMemoryStats(state->domains[i], minfo,
+ VIR_DOMAIN_MEMORY_STAT_NR, 0);
- status = virDomainMemoryStats (domains[i], minfo, VIR_DOMAIN_MEMORY_STAT_NR, 0);
+ if (status < 0) {
+ ERROR("virt plugin: virDomainMemoryStats failed with status %i.", status);
+ sfree(minfo);
+ continue;
+ }
- if (status < 0) {
- ERROR ("virt plugin: virDomainMemoryStats failed with status %i.",
- status);
- sfree (minfo);
- continue;
- }
+ for (int j = 0; j < status; j++) {
+ memory_stats_submit((gauge_t)minfo[j].val * 1024, state->domains[i],
+ minfo[j].tag);
+ }
- for (int j = 0; j < status; j++) {
- memory_stats_submit ((gauge_t) minfo[j].val * 1024, domains[i], minfo[j].tag);
- }
+ sfree(minfo);
+ }
+
+ /* Get block device stats for each domain. */
+ for (int i = 0; i < state->nr_block_devices; ++i) {
+ struct block_device *bdev = &(state->block_devices[i]);
+ struct lv_block_info binfo;
+ init_block_info(&binfo);
+
+ if (lv_domain_block_info(bdev->dom, bdev->path, &binfo) < 0)
+ continue;
+
+ char *type_instance = bdev->path;
+ char *path = NULL;
+ if (blockdevice_format_basename && blockdevice_format == source) {
+ path = strdup(bdev->path);
+ if (path == NULL) {
+ WARNING(PLUGIN_NAME
+ " plugin: error extracting the basename for '%s', skipped",
+ bdev->path);
+ continue;
+ }
+ type_instance = basename(path);
+ }
- sfree (minfo);
+ disk_submit(&binfo, bdev->dom, type_instance);
+
+ sfree(path);
+ } /* for (nr_block_devices) */
+
+ /* Get interface stats for each domain. */
+ for (int i = 0; i < state->nr_interface_devices; ++i) {
+ struct _virDomainInterfaceStats stats;
+ char *display_name = NULL;
+
+ switch (interface_format) {
+ case if_address:
+ display_name = state->interface_devices[i].address;
+ break;
+ case if_number:
+ display_name = state->interface_devices[i].number;
+ break;
+ case if_name:
+ default:
+ display_name = state->interface_devices[i].path;
}
+ if (virDomainInterfaceStats(state->interface_devices[i].dom,
+ state->interface_devices[i].path, &stats,
+ sizeof stats) != 0)
+ continue;
+
+ if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
+ submit_derive2("if_octets", (derive_t)stats.rx_bytes,
+ (derive_t)stats.tx_bytes, state->interface_devices[i].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,
+ state->interface_devices[i].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, state->interface_devices[i].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, state->interface_devices[i].dom,
+ display_name);
+ } /* for (nr_interface_devices) */
+
+ return 0;
+ }
- /* Get block device stats for each domain. */
- for (int i = 0; i < nr_block_devices; ++i) {
- struct _virDomainBlockStats stats;
+ static int lv_init_instance(size_t i, plugin_read_cb callback) {
+ struct lv_user_data *lv_ud = &(lv_read_user_data[i]);
+ struct lv_read_instance *inst = &(lv_ud->inst);
- if (virDomainBlockStats (block_devices[i].dom, block_devices[i].path,
- &stats, sizeof stats) != 0)
- continue;
+ memset(lv_ud, 0, sizeof(*lv_ud));
- char *type_instance = NULL;
- if (blockdevice_format_basename && blockdevice_format == source)
- type_instance = strdup(basename(block_devices[i].path));
- else
- type_instance = strdup(block_devices[i].path);
-
- if ((stats.rd_req != -1) && (stats.wr_req != -1))
- submit_derive2 ("disk_ops",
- (derive_t) stats.rd_req, (derive_t) stats.wr_req,
- block_devices[i].dom, type_instance);
-
- if ((stats.rd_bytes != -1) && (stats.wr_bytes != -1))
- submit_derive2 ("disk_octets",
- (derive_t) stats.rd_bytes, (derive_t) stats.wr_bytes,
- block_devices[i].dom, type_instance);
-
- sfree (type_instance);
- } /* for (nr_block_devices) */
-
- /* Get interface stats for each domain. */
- for (int i = 0; i < nr_interface_devices; ++i) {
- struct _virDomainInterfaceStats stats;
- char *display_name = NULL;
-
- switch (interface_format) {
- case if_address:
- display_name = interface_devices[i].address;
- break;
- case if_number:
- display_name = interface_devices[i].number;
- break;
- case if_name:
- default:
- display_name = interface_devices[i].path;
- }
+ ssnprintf(inst->tag, sizeof(inst->tag), "%s-%zu", PLUGIN_NAME, i);
+ inst->id = i;
- if (virDomainInterfaceStats (interface_devices[i].dom,
- interface_devices[i].path,
- &stats, sizeof stats) != 0)
- continue;
+ user_data_t *ud = &(lv_ud->ud);
+ ud->data = inst;
+ ud->free_func = NULL;
- if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
- submit_derive2 ("if_octets",
- (derive_t) stats.rx_bytes, (derive_t) stats.tx_bytes,
- interface_devices[i].dom, display_name);
+ INFO(PLUGIN_NAME " plugin: reader %s initialized", inst->tag);
+ return plugin_register_complex_read(NULL, inst->tag, callback, 0, ud);
+ }
- if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
- submit_derive2 ("if_packets",
- (derive_t) stats.rx_packets, (derive_t) stats.tx_packets,
- interface_devices[i].dom, display_name);
+ static void lv_clean_read_state(struct lv_read_state *state) {
+ free_block_devices(state);
+ free_interface_devices(state);
+ free_domains(state);
+ }
- if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
- submit_derive2 ("if_errors",
- (derive_t) stats.rx_errs, (derive_t) stats.tx_errs,
- interface_devices[i].dom, display_name);
+ static void lv_fini_instance(size_t i) {
+ struct lv_read_instance *inst = &(lv_read_user_data[i].inst);
+ struct lv_read_state *state = &(inst->read_state);
- if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
- submit_derive2 ("if_dropped",
- (derive_t) stats.rx_drop, (derive_t) stats.tx_drop,
- interface_devices[i].dom, display_name);
- } /* for (nr_interface_devices) */
+ lv_clean_read_state(state);
+ INFO(PLUGIN_NAME " plugin: reader %s finalized", inst->tag);
+ }
- return 0;
+ static int lv_init(void) {
+ if (virInitialize() != 0)
+ return -1;
+
+ if (lv_connect() != 0)
+ return -1;
+
+ DEBUG(PLUGIN_NAME " plugin: starting %i instances", nr_instances);
+
+ for (int i = 0; i < nr_instances; ++i)
+ lv_init_instance(i, lv_read);
+
+ return 0;
+ }
+
+ /*
+ * returns 0 on success and <0 on error
+ */
+ static int lv_domain_get_tag(xmlXPathContextPtr xpath_ctx, const char *dom_name,
+ char *dom_tag) {
+ char xpath_str[BUFFER_MAX_LEN] = {'\0'};
+ xmlXPathObjectPtr xpath_obj = NULL;
+ xmlNodePtr xml_node = NULL;
+ int ret = -1;
+ int err;
+
+ err = xmlXPathRegisterNs(xpath_ctx,
+ (const xmlChar *)METADATA_VM_PARTITION_PREFIX,
+ (const xmlChar *)METADATA_VM_PARTITION_URI);
+ if (err) {
+ ERROR(PLUGIN_NAME " plugin: xmlXpathRegisterNs(%s, %s) failed on domain %s",
+ METADATA_VM_PARTITION_PREFIX, METADATA_VM_PARTITION_URI, dom_name);
+ goto done;
+ }
+
+ ssnprintf(xpath_str, sizeof(xpath_str), "/domain/metadata/%s:%s/text()",
+ METADATA_VM_PARTITION_PREFIX, METADATA_VM_PARTITION_ELEMENT);
+ xpath_obj = xmlXPathEvalExpression((xmlChar *)xpath_str, xpath_ctx);
+ if (xpath_obj == NULL) {
+ ERROR(PLUGIN_NAME " plugin: xmlXPathEval(%s) failed on domain %s",
+ xpath_str, dom_name);
+ goto done;
+ }
+
+ if (xpath_obj->type != XPATH_NODESET) {
+ ERROR(PLUGIN_NAME " plugin: xmlXPathEval(%s) unexpected return type %d "
+ "(wanted %d) on domain %s",
+ xpath_str, xpath_obj->type, XPATH_NODESET, dom_name);
+ goto done;
+ }
+
+ /*
+ * from now on there is no real error, it's ok if a domain
+ * doesn't have the metadata partition tag.
+ */
+ ret = 0;
+ if (xpath_obj->nodesetval == NULL || xpath_obj->nodesetval->nodeNr != 1) {
+ DEBUG(PLUGIN_NAME " plugin: xmlXPathEval(%s) return nodeset size=%i "
+ "expected=1 on domain %s",
+ xpath_str,
+ (xpath_obj->nodesetval == NULL) ? 0 : xpath_obj->nodesetval->nodeNr,
+ dom_name);
+ } else {
+ xml_node = xpath_obj->nodesetval->nodeTab[0];
+ sstrncpy(dom_tag, (const char *)xml_node->content, PARTITION_TAG_MAX_LEN);
+ }
+
+ done:
+ /* deregister to clean up */
+ err = xmlXPathRegisterNs(xpath_ctx,
+ (const xmlChar *)METADATA_VM_PARTITION_PREFIX, NULL);
+ if (err) {
+ /* we can't really recover here */
+ ERROR(PLUGIN_NAME
+ " plugin: deregistration of namespace %s failed for domain %s",
+ METADATA_VM_PARTITION_PREFIX, dom_name);
+ }
+ if (xpath_obj)
+ xmlXPathFreeObject(xpath_obj);
+
+ return ret;
+ }
+
+ static int is_known_tag(const char *dom_tag) {
+ for (int i = 0; i < nr_instances; ++i)
+ if (!strcmp(dom_tag, lv_read_user_data[i].inst.tag))
+ return 1;
+ return 0;
+ }
+
+ static int lv_instance_include_domain(struct lv_read_instance *inst,
+ const char *dom_name,
+ const char *dom_tag) {
+ if ((dom_tag[0] != '\0') && (strcmp(dom_tag, inst->tag) == 0))
+ return 1;
+
+ /* instance#0 will always be there, so it is in charge of extra duties */
+ if (inst->id == 0) {
+ if (dom_tag[0] == '\0' || !is_known_tag(dom_tag)) {
+ DEBUG(PLUGIN_NAME " plugin#%s: refreshing domain %s "
+ "with unknown tag '%s'",
+ inst->tag, dom_name, dom_tag);
+ return 1;
+ }
+ }
+
+ return 0;
}
- static int
- refresh_lists (void)
- {
- int n;
+/*
+ virConnectListAllDomains() appeared in 0.10.2
+ Note that LIBVIR_CHECK_VERSION appeared a year later, so
+ in some systems which actually have virConnectListAllDomains()
+ we can't detect this.
+ */
+#ifdef LIBVIR_CHECK_VERSION
+# if LIBVIR_CHECK_VERSION(0,10,2)
+# define HAVE_LIST_ALL_DOMAINS 1
+# endif
+#endif
+
+ static int refresh_lists(struct lv_read_instance *inst) {
+ struct lv_read_state *state = &inst->read_state;
+ int n;
- n = virConnectNumOfDomains (conn);
- if (n < 0) {
- VIRT_ERROR (conn, "reading number of domains");
- return -1;
- }
+ n = virConnectNumOfDomains(conn);
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading number of domains");
+ return -1;
+ }
- if (n > 0) {
+ lv_clean_read_state(state);
+
+ if (n > 0) {
+#ifdef HAVE_LIST_ALL_DOMAINS
- virDomainPtr *domains;
- n = virConnectListAllDomains (conn, &domains, VIR_CONNECT_LIST_DOMAINS_ACTIVE);
++ virDomainPtr *domains;
++ n = virConnectListAllDomains (conn, &domains, VIR_CONNECT_LIST_DOMAINS_ACTIVE);
+#else
- int *domids;
+ int *domids;
- /* Get list of domains. */
- domids = malloc (sizeof (*domids) * n);
- if (domids == NULL) {
- ERROR (PLUGIN_NAME " plugin: malloc failed.");
- return -1;
- }
+ /* Get list of domains. */
+ domids = malloc(sizeof(*domids) * n);
+ if (domids == NULL) {
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ return -1;
+ }
- n = virConnectListDomains (conn, domids, n);
+ n = virConnectListDomains(conn, domids, n);
+#endif
+
- if (n < 0) {
- VIRT_ERROR (conn, "reading list of domains");
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading list of domains");
+#ifndef HAVE_LIST_ALL_DOMAINS
- sfree (domids);
+ sfree(domids);
+#endif
- return -1;
- }
-
- free_block_devices ();
- free_interface_devices ();
- free_domains ();
+ return -1;
+ }
- /* Fetch each domain and add it to the list, unless ignore. */
- for (int i = 0; i < n; ++i) {
- const char *name;
- char *xml = NULL;
- xmlDocPtr xml_doc = NULL;
- xmlXPathContextPtr xpath_ctx = NULL;
- xmlXPathObjectPtr xpath_obj = NULL;
+ /* Fetch each domain and add it to the list, unless ignore. */
+ for (int i = 0; i < n; ++i) {
- virDomainPtr dom = NULL;
+ const char *name;
+ char *xml = NULL;
+ xmlDocPtr xml_doc = NULL;
+ xmlXPathContextPtr xpath_ctx = NULL;
+ xmlXPathObjectPtr xpath_obj = NULL;
+ char tag[PARTITION_TAG_MAX_LEN] = {'\0'};
+ virDomainInfo info;
+ int status;
- virDomainPtr dom = domains[i];
+#ifdef HAVE_LIST_ALL_DOMAINS
- 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;
- }
++ virDomainPtr dom = domains[i];
+#else
++ 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;
+ }
+#endif
- name = virDomainGetName (dom);
- if (name == NULL) {
- VIRT_ERROR (conn, "virDomainGetName");
- goto cont;
- }
-
- if (il_domains && ignorelist_match (il_domains, name) != 0)
- goto cont;
-
- if (add_domain (dom) < 0) {
- ERROR (PLUGIN_NAME " plugin: malloc failed.");
- goto cont;
- }
-
- /* Get a list of devices for this domain. */
- xml = virDomainGetXMLDesc (dom, 0);
- if (!xml) {
- VIRT_ERROR (conn, "virDomainGetXMLDesc");
- goto cont;
- }
-
- /* Yuck, XML. Parse out the devices. */
- xml_doc = xmlReadDoc ((xmlChar *) xml, NULL, NULL, XML_PARSE_NONET);
- if (xml_doc == NULL) {
- VIRT_ERROR (conn, "xmlReadDoc");
- goto cont;
- }
-
- xpath_ctx = xmlXPathNewContext (xml_doc);
-
- /* Block devices. */
- char *bd_xmlpath = "/domain/devices/disk/target[@dev]";
- if (blockdevice_format == source)
- bd_xmlpath = "/domain/devices/disk/source[@dev]";
- xpath_obj = xmlXPathEval ((xmlChar *) bd_xmlpath, xpath_ctx);
-
- if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
- xpath_obj->nodesetval == NULL)
- goto cont;
-
- for (int j = 0; j < xpath_obj->nodesetval->nodeNr; ++j) {
- xmlNodePtr node;
- char *path = NULL;
-
- node = xpath_obj->nodesetval->nodeTab[j];
- if (!node) continue;
- path = (char *) xmlGetProp (node, (xmlChar *) "dev");
- if (!path) continue;
-
- if (il_block_devices &&
- ignore_device_match (il_block_devices, name, path) != 0)
- goto cont2;
-
- add_block_device (dom, path);
- cont2:
- if (path) xmlFree (path);
- }
- xmlXPathFreeObject (xpath_obj);
-
- /* Network interfaces. */
- xpath_obj = xmlXPathEval
- ((xmlChar *) "/domain/devices/interface[target[@dev]]",
- xpath_ctx);
- if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
- xpath_obj->nodesetval == NULL)
- goto cont;
-
- xmlNodeSetPtr xml_interfaces = xpath_obj->nodesetval;
-
- for (int j = 0; j < xml_interfaces->nodeNr; ++j) {
- char *path = NULL;
- char *address = NULL;
- xmlNodePtr xml_interface;
-
- xml_interface = xml_interfaces->nodeTab[j];
- if (!xml_interface) continue;
-
- for (xmlNodePtr child = xml_interface->children; child; child = child->next) {
- if (child->type != XML_ELEMENT_NODE) continue;
-
- if (xmlStrEqual(child->name, (const xmlChar *) "target")) {
- path = (char *) xmlGetProp (child, (const xmlChar *) "dev");
- if (!path) continue;
- } else if (xmlStrEqual(child->name, (const xmlChar *) "mac")) {
- address = (char *) xmlGetProp (child, (const xmlChar *) "address");
- if (!address) continue;
- }
- }
-
- if (il_interface_devices &&
- (ignore_device_match (il_interface_devices, name, path) != 0 ||
- ignore_device_match (il_interface_devices, name, address) != 0))
- goto cont3;
-
- add_interface_device (dom, path, address, j+1);
- cont3:
- if (path) xmlFree (path);
- if (address) xmlFree (address);
- }
-
- cont:
- if (xpath_obj) xmlXPathFreeObject (xpath_obj);
- if (xpath_ctx) xmlXPathFreeContext (xpath_ctx);
- if (xml_doc) xmlFreeDoc (xml_doc);
- sfree (xml);
+ name = virDomainGetName(dom);
+ if (name == NULL) {
+ VIRT_ERROR(conn, "virDomainGetName");
+ goto cont;
+ }
+
+ status = virDomainGetInfo(dom, &info);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+ continue;
+ }
+
+ if (info.state != VIR_DOMAIN_RUNNING) {
+ DEBUG(PLUGIN_NAME " plugin: skipping inactive domain %s", name);
+ continue;
+ }
+
+ if (il_domains && ignorelist_match(il_domains, name) != 0)
+ goto cont;
+
+ /* Get a list of devices for this domain. */
+ xml = virDomainGetXMLDesc(dom, 0);
+ if (!xml) {
+ VIRT_ERROR(conn, "virDomainGetXMLDesc");
+ goto cont;
+ }
+
+ /* Yuck, XML. Parse out the devices. */
+ xml_doc = xmlReadDoc((xmlChar *)xml, NULL, NULL, XML_PARSE_NONET);
+ if (xml_doc == NULL) {
+ VIRT_ERROR(conn, "xmlReadDoc");
+ goto cont;
+ }
+
+ xpath_ctx = xmlXPathNewContext(xml_doc);
+
+ if (lv_domain_get_tag(xpath_ctx, name, tag) < 0) {
+ ERROR(PLUGIN_NAME " plugin: lv_domain_get_tag failed.");
+ goto cont;
+ }
+
+ if (!lv_instance_include_domain(inst, name, tag))
+ goto cont;
+
+ if (add_domain(state, dom) < 0) {
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ goto cont;
+ }
+
+ /* Block devices. */
+ const char *bd_xmlpath = "/domain/devices/disk/target[@dev]";
+ if (blockdevice_format == source)
+ bd_xmlpath = "/domain/devices/disk/source[@dev]";
+ xpath_obj = xmlXPathEval((const xmlChar *)bd_xmlpath, xpath_ctx);
+
+ if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
+ xpath_obj->nodesetval == NULL)
+ goto cont;
+
+ for (int j = 0; j < xpath_obj->nodesetval->nodeNr; ++j) {
+ xmlNodePtr node;
+ char *path = NULL;
+
+ node = xpath_obj->nodesetval->nodeTab[j];
+ if (!node)
+ continue;
+ path = (char *)xmlGetProp(node, (xmlChar *)"dev");
+ if (!path)
+ continue;
+
+ if (il_block_devices &&
+ ignore_device_match(il_block_devices, name, path) != 0)
+ goto cont2;
+
+ add_block_device(state, dom, path);
+ cont2:
+ if (path)
+ xmlFree(path);
+ }
+ xmlXPathFreeObject(xpath_obj);
+
+ /* Network interfaces. */
+ xpath_obj = xmlXPathEval(
+ (xmlChar *)"/domain/devices/interface[target[@dev]]", xpath_ctx);
+ if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
+ xpath_obj->nodesetval == NULL)
+ goto cont;
+
+ xmlNodeSetPtr xml_interfaces = xpath_obj->nodesetval;
+
+ for (int j = 0; j < xml_interfaces->nodeNr; ++j) {
+ char *path = NULL;
+ char *address = NULL;
+ xmlNodePtr xml_interface;
+
+ xml_interface = xml_interfaces->nodeTab[j];
+ if (!xml_interface)
+ continue;
+
+ for (xmlNodePtr child = xml_interface->children; child;
+ child = child->next) {
+ if (child->type != XML_ELEMENT_NODE)
+ continue;
+
+ if (xmlStrEqual(child->name, (const xmlChar *)"target")) {
+ path = (char *)xmlGetProp(child, (const xmlChar *)"dev");
+ if (!path)
+ continue;
+ } else if (xmlStrEqual(child->name, (const xmlChar *)"mac")) {
+ address = (char *)xmlGetProp(child, (const xmlChar *)"address");
+ if (!address)
+ continue;
+ }
}
- sfree (domains);
+ if (il_interface_devices &&
+ (ignore_device_match(il_interface_devices, name, path) != 0 ||
+ ignore_device_match(il_interface_devices, name, address) != 0))
+ goto cont3;
+
+ add_interface_device(state, dom, path, address, j + 1);
+ cont3:
+ if (path)
+ xmlFree(path);
+ if (address)
+ xmlFree(address);
+ }
+
+ cont:
+ if (xpath_obj)
+ xmlXPathFreeObject(xpath_obj);
+ if (xpath_ctx)
+ xmlXPathFreeContext(xpath_ctx);
+ if (xml_doc)
+ xmlFreeDoc(xml_doc);
+ sfree(xml);
+ }
+
+#ifdef HAVE_LIST_ALL_DOMAINS
- sfree (domids);
++ sfree (domains);
+#else
- }
+ sfree(domids);
+#endif
+ }
- return 0;
+ DEBUG(PLUGIN_NAME " plugin#%s: refreshing"
+ " domains=%i block_devices=%i iface_devices=%i",
+ inst->tag, state->nr_domains, state->nr_block_devices,
+ state->nr_interface_devices);
+
+ return 0;
}
- static void
- free_domains (void)
- {
- if (domains) {
- for (int i = 0; i < nr_domains; ++i)
- virDomainFree (domains[i]);
- sfree (domains);
- }
- domains = NULL;
- nr_domains = 0;
+ static void free_domains(struct lv_read_state *state) {
+ if (state->domains) {
+ for (int i = 0; i < state->nr_domains; ++i)
+ virDomainFree(state->domains[i]);
+ sfree(state->domains);
+ }
+ state->domains = NULL;
+ state->nr_domains = 0;
}
- static int
- add_domain (virDomainPtr dom)
- {
- virDomainPtr *new_ptr;
- int new_size = sizeof (domains[0]) * (nr_domains+1);
+ static int add_domain(struct lv_read_state *state, virDomainPtr dom) {
+ virDomainPtr *new_ptr;
+ int new_size = sizeof(state->domains[0]) * (state->nr_domains + 1);
- if (domains)
- new_ptr = realloc (domains, new_size);
- else
- new_ptr = malloc (new_size);
+ if (state->domains)
+ new_ptr = realloc(state->domains, new_size);
+ else
+ new_ptr = malloc(new_size);
- if (new_ptr == NULL)
- return -1;
+ if (new_ptr == NULL)
+ return -1;
- domains = new_ptr;
- domains[nr_domains] = dom;
- return nr_domains++;
+ state->domains = new_ptr;
+ state->domains[state->nr_domains] = dom;
+ return state->nr_domains++;
}
- static void
- free_block_devices (void)
- {
- if (block_devices) {
- for (int i = 0; i < nr_block_devices; ++i)
- sfree (block_devices[i].path);
- sfree (block_devices);
- }
- block_devices = NULL;
- nr_block_devices = 0;
+ static void free_block_devices(struct lv_read_state *state) {
+ if (state->block_devices) {
+ for (int i = 0; i < state->nr_block_devices; ++i)
+ sfree(state->block_devices[i].path);
+ sfree(state->block_devices);
+ }
+ state->block_devices = NULL;
+ state->nr_block_devices = 0;
}
- static int
- add_block_device (virDomainPtr dom, const char *path)
- {
- struct block_device *new_ptr;
- int new_size = sizeof (block_devices[0]) * (nr_block_devices+1);
- char *path_copy;
+ static int add_block_device(struct lv_read_state *state, virDomainPtr dom,
+ const char *path) {
+ struct block_device *new_ptr;
+ int new_size =
+ sizeof(state->block_devices[0]) * (state->nr_block_devices + 1);
+ char *path_copy;
- path_copy = strdup (path);
- if (!path_copy)
- return -1;
+ path_copy = strdup(path);
+ if (!path_copy)
+ return -1;
- if (block_devices)
- new_ptr = realloc (block_devices, new_size);
- else
- new_ptr = malloc (new_size);
+ if (state->block_devices)
+ new_ptr = realloc(state->block_devices, new_size);
+ else
+ new_ptr = malloc(new_size);
- if (new_ptr == NULL) {
- sfree (path_copy);
- return -1;
- }
- block_devices = new_ptr;
- block_devices[nr_block_devices].dom = dom;
- block_devices[nr_block_devices].path = path_copy;
- return nr_block_devices++;
+ if (new_ptr == NULL) {
+ sfree(path_copy);
+ return -1;
+ }
+ state->block_devices = new_ptr;
+ state->block_devices[state->nr_block_devices].dom = dom;
+ state->block_devices[state->nr_block_devices].path = path_copy;
+ return state->nr_block_devices++;
}
- static void
- free_interface_devices (void)
- {
- if (interface_devices) {
- for (int i = 0; i < nr_interface_devices; ++i) {
- sfree (interface_devices[i].path);
- sfree (interface_devices[i].address);
- sfree (interface_devices[i].number);
- }
- sfree (interface_devices);
+ static void free_interface_devices(struct lv_read_state *state) {
+ if (state->interface_devices) {
+ for (int i = 0; i < state->nr_interface_devices; ++i) {
+ sfree(state->interface_devices[i].path);
+ sfree(state->interface_devices[i].address);
+ sfree(state->interface_devices[i].number);
}
- interface_devices = NULL;
- nr_interface_devices = 0;
+ sfree(state->interface_devices);
+ }
+ state->interface_devices = NULL;
+ state->nr_interface_devices = 0;
}
- static int
- add_interface_device (virDomainPtr dom, const char *path, const char *address, unsigned int number)
- {
- struct interface_device *new_ptr;
- int new_size = sizeof (interface_devices[0]) * (nr_interface_devices+1);
- char *path_copy, *address_copy, number_string[15];
+ static int add_interface_device(struct lv_read_state *state, virDomainPtr dom,
+ const char *path, const char *address,
+ unsigned int number) {
+ struct interface_device *new_ptr;
+ int new_size =
+ sizeof(state->interface_devices[0]) * (state->nr_interface_devices + 1);
+ char *path_copy, *address_copy, number_string[15];
- if ((path == NULL) || (address == NULL))
- return EINVAL;
+ if ((path == NULL) || (address == NULL))
+ return EINVAL;
- path_copy = strdup (path);
- if (!path_copy) return -1;
+ path_copy = strdup(path);
+ if (!path_copy)
+ return -1;
- address_copy = strdup (address);
- if (!address_copy) {
- sfree(path_copy);
- return -1;
- }
+ address_copy = strdup(address);
+ if (!address_copy) {
+ sfree(path_copy);
+ return -1;
+ }
- snprintf(number_string, sizeof (number_string), "interface-%u", number);
+ snprintf(number_string, sizeof(number_string), "interface-%u", number);
- if (interface_devices)
- new_ptr = realloc (interface_devices, new_size);
- else
- new_ptr = malloc (new_size);
+ if (state->interface_devices)
+ new_ptr = realloc(state->interface_devices, new_size);
+ else
+ new_ptr = malloc(new_size);
- if (new_ptr == NULL) {
- sfree (path_copy);
- sfree (address_copy);
- return -1;
- }
- interface_devices = new_ptr;
- interface_devices[nr_interface_devices].dom = dom;
- interface_devices[nr_interface_devices].path = path_copy;
- interface_devices[nr_interface_devices].address = address_copy;
- interface_devices[nr_interface_devices].number = strdup(number_string);
- return nr_interface_devices++;
+ if (new_ptr == NULL) {
+ sfree(path_copy);
+ sfree(address_copy);
+ return -1;
+ }
+ state->interface_devices = new_ptr;
+ state->interface_devices[state->nr_interface_devices].dom = dom;
+ state->interface_devices[state->nr_interface_devices].path = path_copy;
+ state->interface_devices[state->nr_interface_devices].address = address_copy;
+ state->interface_devices[state->nr_interface_devices].number =
+ strdup(number_string);
+ return state->nr_interface_devices++;
}
- static int
- ignore_device_match (ignorelist_t *il, const char *domname, const char *devpath)
- {
- char *name;
- int n, r;
+ static int ignore_device_match(ignorelist_t *il, const char *domname,
+ const char *devpath) {
+ char *name;
+ int n, r;
- if ((domname == NULL) || (devpath == NULL))
- return 0;
+ if ((domname == NULL) || (devpath == NULL))
+ return 0;
- n = sizeof (char) * (strlen (domname) + strlen (devpath) + 2);
- name = malloc (n);
- if (name == NULL) {
- ERROR (PLUGIN_NAME " plugin: malloc failed.");
- return 0;
- }
- ssnprintf (name, n, "%s:%s", domname, devpath);
- r = ignorelist_match (il, name);
- sfree (name);
- return r;
+ n = sizeof(char) * (strlen(domname) + strlen(devpath) + 2);
+ name = malloc(n);
+ if (name == NULL) {
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ return 0;
+ }
+ ssnprintf(name, n, "%s:%s", domname, devpath);
+ r = ignorelist_match(il, name);
+ sfree(name);
+ return r;
}
- static int
- lv_shutdown (void)
- {
- free_block_devices ();
- free_interface_devices ();
- free_domains ();
+ static int lv_shutdown(void) {
+ for (int i = 0; i < nr_instances; ++i) {
+ lv_fini_instance(i);
+ }
- if (conn != NULL)
- virConnectClose (conn);
- conn = NULL;
+ lv_disconnect();
- ignorelist_free (il_domains);
- il_domains = NULL;
- ignorelist_free (il_block_devices);
- il_block_devices = NULL;
- ignorelist_free (il_interface_devices);
- il_interface_devices = NULL;
+ ignorelist_free(il_domains);
+ il_domains = NULL;
+ ignorelist_free(il_block_devices);
+ il_block_devices = NULL;
+ ignorelist_free(il_interface_devices);
+ il_interface_devices = NULL;
- return 0;
+ return 0;
}
- void
- module_register (void)
- {
- plugin_register_config (PLUGIN_NAME,
- lv_config,
- config_keys, NR_CONFIG_KEYS);
- plugin_register_init (PLUGIN_NAME, lv_init);
- plugin_register_read (PLUGIN_NAME, lv_read);
- plugin_register_shutdown (PLUGIN_NAME, lv_shutdown);
+ void module_register(void) {
+ plugin_register_config(PLUGIN_NAME, lv_config, config_keys, NR_CONFIG_KEYS);
+ plugin_register_init(PLUGIN_NAME, lv_init);
+ plugin_register_shutdown(PLUGIN_NAME, lv_shutdown);
}
-
- /*
- * vim: shiftwidth=4 tabstop=8 softtabstop=4 expandtab fdm=marker
- */
projects / collectd.git / commitdiff