/**
* collectd - src/varnish.c
- * Copyright (C) 2010 Jerome Renard
+ * Copyright (C) 2010 Jérôme Renard
+ * Copyright (C) 2010 Marc Fournier
+ * Copyright (C) 2010 Florian Forster
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
- * Jerome Renard <jerome.renard@gmail.com>
+ * Jérôme Renard <jerome.renard at gmail.com>
+ * Marc Fournier <marc.fournier at camptocamp.com>
+ * Florian octo Forster <octo at verplant.org>
**/
/**
* Current list of what is monitored and what is not monitored (yet)
- *
+ * {{{
* Field name Description Monitored
* ---------- ----------- ---------
* uptime Child uptime N
* n_smf_frag N small free smf N
* n_smf_large N large free smf N
* n_vbe_conn N struct vbe_conn N
- * n_wrk N worker threads N
- * n_wrk_create N worker threads created N
- * n_wrk_failed N worker threads not created N
- * n_wrk_max N worker threads limited N
- * n_wrk_queue N queued work requests N
- * n_wrk_overflow N overflowed work requests N
- * n_wrk_drop N dropped work requests N
+ * n_wrk N worker threads Y
+ * n_wrk_create N worker threads created Y
+ * n_wrk_failed N worker threads not created Y
+ * n_wrk_max N worker threads limited Y
+ * n_wrk_queue N queued work requests Y
+ * n_wrk_overflow N overflowed work requests Y
+ * n_wrk_drop N dropped work requests Y
* n_backend N backends N
* n_expired N expired objects N
* n_lru_nuked N LRU nuked objects N
* n_objsendfile Objects sent with sendfile N
* n_objwrite Objects sent with write N
* n_objoverflow Objects overflowing workspace N
- * s_sess Total Sessions N
- * s_req Total Requests N
- * s_pipe Total pipe N
- * s_pass Total pass N
- * s_fetch Total fetch N
- * s_hdrbytes Total header bytes N
- * s_bodybytes Total body bytes N
+ * s_sess Total Sessions Y
+ * s_req Total Requests Y
+ * s_pipe Total pipe Y
+ * s_pass Total pass Y
+ * s_fetch Total fetch Y
+ * s_hdrbytes Total header bytes Y
+ * s_bodybytes Total body bytes Y
* sess_closed Session Closed N
* sess_pipeline Session Pipeline N
* sess_readahead Session Read Ahead N
* shm_flushes SHM flushes due to overflow Y
* shm_cont SHM MTX contention Y
* shm_cycles SHM cycles through buffer Y
- * sm_nreq allocator requests N
- * sm_nobj outstanding allocations N
- * sm_balloc bytes allocated N
- * sm_bfree bytes free N
- * sma_nreq SMA allocator requests N
- * sma_nobj SMA outstanding allocations N
- * sma_nbytes SMA outstanding bytes N
- * sma_balloc SMA bytes allocated N
- * sma_bfree SMA bytes free N
- * sms_nreq SMS allocator requests N
- * sms_nobj SMS outstanding allocations N
- * sms_nbytes SMS outstanding bytes N
- * sms_balloc SMS bytes allocated N
- * sms_bfree SMS bytes freed N
+ * sm_nreq allocator requests Y
+ * sm_nobj outstanding allocations Y
+ * sm_balloc bytes allocated Y
+ * sm_bfree bytes free Y
+ * sma_nreq SMA allocator requests Y
+ * sma_nobj SMA outstanding allocations Y
+ * sma_nbytes SMA outstanding bytes Y
+ * sma_balloc SMA bytes allocated Y
+ * sma_bfree SMA bytes free Y
+ * sms_nreq SMS allocator requests Y
+ * sms_nobj SMS outstanding allocations Y
+ * sms_nbytes SMS outstanding bytes Y
+ * sms_balloc SMS bytes allocated Y
+ * sms_bfree SMS bytes freed Y
* backend_req Backend requests made N
* n_vcl N vcl total N
* n_vcl_avail N vcl available N
* hcb_insert HCB Inserts Y
* esi_parse Objects ESI parsed (unlock) Y
* esi_errors ESI parse errors (unlock) Y
+ * }}}
*/
#include "collectd.h"
#include "common.h"
#include "plugin.h"
+#include "configfile.h"
#include <varnish/varnishapi.h>
-#define USER_CONFIG_INIT {0, 0, 0, 0, 0, 0, 0}
-#define SET_MONITOR_FLAG(name, flag, value) if((strcasecmp(name, key) == 0) && IS_TRUE(value)) user_config.flag = 1
-
/* {{{ user_config_s */
struct user_config_s {
- int monitor_cache;
- int monitor_connections;
- int monitor_esi;
- int monitor_backend;
- int monitor_fetch;
- int monitor_hcb;
- int monitor_shm;
-};
+ char *instance;
+ _Bool collect_cache;
+ _Bool collect_connections;
+ _Bool collect_esi;
+ _Bool collect_backend;
+ _Bool collect_fetch;
+ _Bool collect_hcb;
+ _Bool collect_shm;
+ _Bool collect_sma;
+ _Bool collect_sms;
+ _Bool collect_sm;
+ _Bool collect_totals;
+ _Bool collect_workers;
+};
typedef struct user_config_s user_config_t; /* }}} */
-/* {{{ Configuration directives */
-static user_config_t user_config = USER_CONFIG_INIT;
+static _Bool have_instance = 0;
-static const char *config_keys[] =
+static int varnish_submit (const char *plugin_instance, /* {{{ */
+ const char *category, const char *type, const char *type_instance, value_t value)
{
- "MonitorCache",
- "MonitorConnections",
- "MonitorESI",
- "MonitorBackend",
- "MonitorFetch",
- "MonitorHCB",
- "MonitorSHM"
-};
+ value_list_t vl = VALUE_LIST_INIT;
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys); /* }}} */
+ vl.values = &value;
+ vl.values_len = 1;
-static int varnish_config(const char *key, const char *value) /* {{{ */
-{
- SET_MONITOR_FLAG("MonitorCache" , monitor_cache , value);
- SET_MONITOR_FLAG("MonitorConnections", monitor_connections, value);
- SET_MONITOR_FLAG("MonitorESI" , monitor_esi , value);
- SET_MONITOR_FLAG("MonitorBackend" , monitor_backend , value);
- SET_MONITOR_FLAG("MonitorFetch" , monitor_fetch , value);
- SET_MONITOR_FLAG("MonitorHCB" , monitor_hcb , value);
- SET_MONITOR_FLAG("MonitorSHM" , monitor_shm , value);
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- return (0);
-} /* }}} */
+ sstrncpy (vl.plugin, "varnish", sizeof (vl.plugin));
+
+ if (plugin_instance == NULL)
+ plugin_instance = "default";
+
+ ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
+ "%s-%s", plugin_instance, category);
-static void varnish_submit(const char *type, const char *type_instance, gauge_t value) /* {{{ */
+ sstrncpy (vl.type, type, sizeof (vl.type));
+
+ if (type_instance != NULL)
+ sstrncpy (vl.type_instance, type_instance,
+ sizeof (vl.type_instance));
+
+ return (plugin_dispatch_values (&vl));
+} /* }}} int varnish_submit */
+
+static int varnish_submit_gauge (const char *plugin_instance, /* {{{ */
+ const char *category, const char *type, const char *type_instance,
+ uint64_t gauge_value)
{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
+ value_t value;
- values[0].gauge = value;
- vl.values_len = 1;
- vl.values = values;
+ value.gauge = (gauge_t) gauge_value;
- sstrncpy(vl.host , hostname_g , sizeof(vl.host));
- sstrncpy(vl.plugin , "varnish" , sizeof(vl.plugin));
- sstrncpy(vl.type , type , sizeof(vl.type));
- sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
+ return (varnish_submit (plugin_instance, category, type, type_instance, value));
+} /* }}} int varnish_submit_gauge */
- plugin_dispatch_values(&vl);
-} /* }}} */
+static int varnish_submit_derive (const char *plugin_instance, /* {{{ */
+ const char *category, const char *type, const char *type_instance,
+ uint64_t derive_value)
+{
+ value_t value;
+
+ value.derive = (derive_t) derive_value;
+
+ return (varnish_submit (plugin_instance, category, type, type_instance, value));
+} /* }}} int varnish_submit_derive */
-static void varnish_monitor(struct varnish_stats *VSL_stats) /* {{{ */
+static void varnish_monitor (const user_config_t *conf, struct varnish_stats *VSL_stats) /* {{{ */
{
- if(user_config.monitor_cache == 1)
+ if (conf->collect_cache)
{
- varnish_submit("varnish_cache_ratio", "cache_hit" , VSL_stats->cache_hit); /* Cache hits */
- varnish_submit("varnish_cache_ratio", "cache_miss" , VSL_stats->cache_miss); /* Cache misses */
- varnish_submit("varnish_cache_ratio", "cache_hitpass", VSL_stats->cache_hitpass); /* Cache hits for pass */
+ /* Cache hits */
+ varnish_submit_derive (conf->instance, "cache", "cache_result", "hit", VSL_stats->cache_hit);
+ /* Cache misses */
+ varnish_submit_derive (conf->instance, "cache", "cache_result", "miss", VSL_stats->cache_miss);
+ /* Cache hits for pass */
+ varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", VSL_stats->cache_hitpass);
}
- if(user_config.monitor_connections == 1)
+ if (conf->collect_connections)
{
- varnish_submit("varnish_connections", "client_connections-accepted", VSL_stats->client_conn); /* Client connections accepted */
- varnish_submit("varnish_connections", "client_connections-dropped" , VSL_stats->client_drop); /* Connection dropped, no sess */
- varnish_submit("varnish_connections", "client_connections-received", VSL_stats->client_req); /* Client requests received */
+ /* Client connections accepted */
+ varnish_submit_derive (conf->instance, "connections", "connections", "accepted", VSL_stats->client_conn);
+ /* Connection dropped, no sess */
+ varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , VSL_stats->client_drop);
+ /* Client requests received */
+ varnish_submit_derive (conf->instance, "connections", "connections", "received", VSL_stats->client_req);
}
- if(user_config.monitor_esi == 1)
+ if (conf->collect_esi)
{
- varnish_submit("varnish_esi", "esi_parsed", VSL_stats->esi_parse); /* Objects ESI parsed (unlock) */
- varnish_submit("varnish_esi", "esi_errors", VSL_stats->esi_errors); /* ESI parse errors (unlock) */
+ /* Objects ESI parsed (unlock) */
+ varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed", VSL_stats->esi_parse);
+ /* ESI parse errors (unlock) */
+ varnish_submit_derive (conf->instance, "esi", "total_operations", "error", VSL_stats->esi_errors);
}
- if(user_config.monitor_backend == 1)
+ if (conf->collect_backend)
{
- varnish_submit("varnish_backend_connections", "backend_connections-success" , VSL_stats->backend_conn); /* Backend conn. success */
- varnish_submit("varnish_backend_connections", "backend_connections-not-attempted", VSL_stats->backend_unhealthy); /* Backend conn. not attempted */
- varnish_submit("varnish_backend_connections", "backend_connections-too-many" , VSL_stats->backend_busy); /* Backend conn. too many */
- varnish_submit("varnish_backend_connections", "backend_connections-failures" , VSL_stats->backend_fail); /* Backend conn. failures */
- varnish_submit("varnish_backend_connections", "backend_connections-reuses" , VSL_stats->backend_reuse); /* Backend conn. reuses */
- varnish_submit("varnish_backend_connections", "backend_connections-was-closed" , VSL_stats->backend_toolate); /* Backend conn. was closed */
- varnish_submit("varnish_backend_connections", "backend_connections-recycles" , VSL_stats->backend_recycle); /* Backend conn. recycles */
- varnish_submit("varnish_backend_connections", "backend_connections-unused" , VSL_stats->backend_unused); /* Backend conn. unused */
+ /* Backend conn. success */
+ varnish_submit_derive (conf->instance, "backend", "connections", "success" , VSL_stats->backend_conn);
+ /* Backend conn. not attempted */
+ varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", VSL_stats->backend_unhealthy);
+ /* Backend conn. too many */
+ varnish_submit_derive (conf->instance, "backend", "connections", "too-many" , VSL_stats->backend_busy);
+ /* Backend conn. failures */
+ varnish_submit_derive (conf->instance, "backend", "connections", "failures" , VSL_stats->backend_fail);
+ /* Backend conn. reuses */
+ varnish_submit_derive (conf->instance, "backend", "connections", "reuses" , VSL_stats->backend_reuse);
+ /* Backend conn. was closed */
+ varnish_submit_derive (conf->instance, "backend", "connections", "was-closed" , VSL_stats->backend_toolate);
+ /* Backend conn. recycles */
+ varnish_submit_derive (conf->instance, "backend", "connections", "recycled" , VSL_stats->backend_recycle);
+ /* Backend conn. unused */
+ varnish_submit_derive (conf->instance, "backend", "connections", "unused" , VSL_stats->backend_unused);
}
- if(user_config.monitor_fetch == 1)
+ if (conf->collect_fetch)
{
- varnish_submit("varnish_fetch", "fetch_head" , VSL_stats->fetch_head); /* Fetch head */
- varnish_submit("varnish_fetch", "fetch_length" , VSL_stats->fetch_length); /* Fetch with length */
- varnish_submit("varnish_fetch", "fetch_chunked" , VSL_stats->fetch_chunked); /* Fetch chunked */
- varnish_submit("varnish_fetch", "fetch_eof" , VSL_stats->fetch_eof); /* Fetch EOF */
- varnish_submit("varnish_fetch", "fetch_bad-headers", VSL_stats->fetch_bad); /* Fetch bad headers */
- varnish_submit("varnish_fetch", "fetch_close" , VSL_stats->fetch_close); /* Fetch wanted close */
- varnish_submit("varnish_fetch", "fetch_oldhttp" , VSL_stats->fetch_oldhttp); /* Fetch pre HTTP/1.1 closed */
- varnish_submit("varnish_fetch", "fetch_zero" , VSL_stats->fetch_zero); /* Fetch zero len */
- varnish_submit("varnish_fetch", "fetch_failed" , VSL_stats->fetch_failed); /* Fetch failed */
+ /* Fetch head */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "head" , VSL_stats->fetch_head);
+ /* Fetch with length */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "length" , VSL_stats->fetch_length);
+ /* Fetch chunked */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked" , VSL_stats->fetch_chunked);
+ /* Fetch EOF */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof" , VSL_stats->fetch_eof);
+ /* Fetch bad headers */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", VSL_stats->fetch_bad);
+ /* Fetch wanted close */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "close" , VSL_stats->fetch_close);
+ /* Fetch pre HTTP/1.1 closed */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp" , VSL_stats->fetch_oldhttp);
+ /* Fetch zero len */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero" , VSL_stats->fetch_zero);
+ /* Fetch failed */
+ varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed" , VSL_stats->fetch_failed);
}
- if(user_config.monitor_hcb == 1)
+ if (conf->collect_hcb)
{
- varnish_submit("varnish_hcb", "hcb_nolock", VSL_stats->hcb_nolock); /* HCB Lookups without lock */
- varnish_submit("varnish_hcb", "hcb_lock" , VSL_stats->hcb_lock); /* HCB Lookups with lock */
- varnish_submit("varnish_hcb", "hcb_insert", VSL_stats->hcb_insert); /* HCB Inserts */
+ /* HCB Lookups without lock */
+ varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", VSL_stats->hcb_nolock);
+ /* HCB Lookups with lock */
+ varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock", VSL_stats->hcb_lock);
+ /* HCB Inserts */
+ varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert", VSL_stats->hcb_insert);
}
- if(user_config.monitor_shm == 1)
+ if (conf->collect_shm)
{
- varnish_submit("varnish_shm", "shm_records" , VSL_stats->shm_records); /* SHM records */
- varnish_submit("varnish_shm", "shm_writes" , VSL_stats->shm_writes); /* SHM writes */
- varnish_submit("varnish_shm", "shm_flushes" , VSL_stats->shm_flushes); /* SHM flushes due to overflow */
- varnish_submit("varnish_shm", "shm_contention", VSL_stats->shm_cont); /* SHM MTX contention */
- varnish_submit("varnish_shm", "shm_cycles" , VSL_stats->shm_cycles); /* SHM cycles through buffer */
+ /* SHM records */
+ varnish_submit_derive (conf->instance, "shm", "total_operations", "records" , VSL_stats->shm_records);
+ /* SHM writes */
+ varnish_submit_derive (conf->instance, "shm", "total_operations", "writes" , VSL_stats->shm_writes);
+ /* SHM flushes due to overflow */
+ varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes" , VSL_stats->shm_flushes);
+ /* SHM MTX contention */
+ varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", VSL_stats->shm_cont);
+ /* SHM cycles through buffer */
+ varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles" , VSL_stats->shm_cycles);
}
-} /* }}} */
-static int varnish_read(void) /* {{{ */
+ if (conf->collect_sm)
+ {
+ /* allocator requests */
+ varnish_submit_derive (conf->instance, "sm", "total_requests", "nreq", VSL_stats->sm_nreq);
+ /* outstanding allocations */
+ varnish_submit_gauge (conf->instance, "sm", "requests", "outstanding", VSL_stats->sm_nobj);
+ /* bytes allocated */
+ varnish_submit_gauge (conf->instance, "sm", "bytes", "allocated", VSL_stats->sm_balloc);
+ /* bytes free */
+ varnish_submit_gauge (conf->instance, "sm", "bytes", "free", VSL_stats->sm_bfree);
+ }
+
+ if (conf->collect_sma)
+ {
+ /* SMA allocator requests */
+ varnish_submit_derive (conf->instance, "sma", "total_requests", "nreq", VSL_stats->sma_nreq);
+ /* SMA outstanding allocations */
+ varnish_submit_gauge (conf->instance, "sma", "requests", "outstanding", VSL_stats->sma_nobj);
+ /* SMA outstanding bytes */
+ varnish_submit_gauge (conf->instance, "sma", "bytes", "outstanding", VSL_stats->sma_nbytes);
+ /* SMA bytes allocated */
+ varnish_submit_gauge (conf->instance, "sma", "bytes", "allocated", VSL_stats->sma_balloc);
+ /* SMA bytes free */
+ varnish_submit_gauge (conf->instance, "sma", "bytes", "free" , VSL_stats->sma_bfree);
+ }
+
+ if (conf->collect_sms)
+ {
+ /* SMS allocator requests */
+ varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", VSL_stats->sms_nreq);
+ /* SMS outstanding allocations */
+ varnish_submit_gauge (conf->instance, "sms", "requests", "outstanding", VSL_stats->sms_nobj);
+ /* SMS outstanding bytes */
+ varnish_submit_gauge (conf->instance, "sms", "bytes", "outstanding", VSL_stats->sms_nbytes);
+ /* SMS bytes allocated */
+ varnish_submit_gauge (conf->instance, "sms", "bytes", "allocated", VSL_stats->sms_balloc);
+ /* SMS bytes freed */
+ varnish_submit_gauge (conf->instance, "sms", "bytes", "free", VSL_stats->sms_bfree);
+ }
+
+ if (conf->collect_totals)
+ {
+ /* Total Sessions */
+ varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions", VSL_stats->s_sess);
+ /* Total Requests */
+ varnish_submit_derive (conf->instance, "totals", "total_requests", "requests", VSL_stats->s_req);
+ /* Total pipe */
+ varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe", VSL_stats->s_pipe);
+ /* Total pass */
+ varnish_submit_derive (conf->instance, "totals", "total_operations", "pass", VSL_stats->s_pass);
+ /* Total fetch */
+ varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", VSL_stats->s_fetch);
+ /* Total header bytes */
+ varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", VSL_stats->s_hdrbytes);
+ /* Total body byte */
+ varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes", VSL_stats->s_bodybytes);
+ }
+
+ if (conf->collect_workers)
+ {
+ /* worker threads */
+ varnish_submit_gauge (conf->instance, "workers", "threads", "worker", VSL_stats->n_wrk);
+ /* worker threads created */
+ varnish_submit_gauge (conf->instance, "workers", "total_threads", "created", VSL_stats->n_wrk_create);
+ /* worker threads not created */
+ varnish_submit_gauge (conf->instance, "workers", "total_threads", "failed", VSL_stats->n_wrk_failed);
+ /* worker threads limited */
+ varnish_submit_gauge (conf->instance, "workers", "total_threads", "limited", VSL_stats->n_wrk_max);
+ /* queued work requests */
+ varnish_submit_gauge (conf->instance, "workers", "total_requests", "queued", VSL_stats->n_wrk_queue);
+ /* overflowed work requests */
+ varnish_submit_gauge (conf->instance, "workers", "total_requests", "overflowed", VSL_stats->n_wrk_overflow);
+ /* dropped work requests */
+ varnish_submit_gauge (conf->instance, "workers", "total_requests", "dropped", VSL_stats->n_wrk_drop);
+ }
+} /* }}} void varnish_monitor */
+
+static int varnish_read (user_data_t *ud) /* {{{ */
{
struct varnish_stats *VSL_stats;
- const char *varnish_instance_name = NULL;
+ user_config_t *conf;
- if ((VSL_stats = VSL_OpenStats(varnish_instance_name)) == NULL)
+ if ((ud == NULL) || (ud->data == NULL))
+ return (EINVAL);
+
+ conf = ud->data;
+
+ VSL_stats = VSL_OpenStats (conf->instance);
+ if (VSL_stats == NULL)
{
- ERROR("Varnish plugin : unable to load statistics");
+ ERROR ("Varnish plugin : unable to load statistics");
return (-1);
}
- varnish_monitor(VSL_stats);
+ varnish_monitor (conf, VSL_stats);
return (0);
} /* }}} */
+static void varnish_config_free (void *ptr) /* {{{ */
+{
+ user_config_t *conf = ptr;
+
+ if (conf == NULL)
+ return;
+
+ sfree (conf->instance);
+ sfree (conf);
+} /* }}} */
+
+static int varnish_config_apply_default (user_config_t *conf) /* {{{ */
+{
+ if (conf == NULL)
+ return (EINVAL);
+
+ conf->collect_backend = 1;
+ conf->collect_cache = 1;
+ conf->collect_connections = 1;
+ conf->collect_esi = 0;
+ conf->collect_fetch = 0;
+ conf->collect_hcb = 0;
+ conf->collect_shm = 1;
+ conf->collect_sm = 0;
+ conf->collect_sma = 0;
+ conf->collect_sms = 0;
+ conf->collect_totals = 0;
+
+ return (0);
+} /* }}} int varnish_config_apply_default */
+
+static int varnish_init (void) /* {{{ */
+{
+ user_config_t *conf;
+ user_data_t ud;
+
+ if (have_instance)
+ return (0);
+
+ conf = malloc (sizeof (*conf));
+ if (conf == NULL)
+ return (ENOMEM);
+ memset (conf, 0, sizeof (*conf));
+
+ /* Default settings: */
+ conf->instance = NULL;
+
+ varnish_config_apply_default (conf);
+
+ ud.data = conf;
+ ud.free_func = varnish_config_free;
+
+ plugin_register_complex_read (/* group = */ "varnish",
+ /* name = */ "varnish/localhost",
+ /* callback = */ varnish_read,
+ /* interval = */ NULL,
+ /* user data = */ &ud);
+
+ return (0);
+} /* }}} int varnish_init */
+
+static int varnish_config_instance (const oconfig_item_t *ci) /* {{{ */
+{
+ user_config_t *conf;
+ user_data_t ud;
+ char callback_name[DATA_MAX_NAME_LEN];
+ int i;
+
+ conf = malloc (sizeof (*conf));
+ if (conf == NULL)
+ return (ENOMEM);
+ memset (conf, 0, sizeof (*conf));
+ conf->instance = NULL;
+
+ varnish_config_apply_default (conf);
+
+ if (ci->values_num == 1)
+ {
+ int status;
+
+ status = cf_util_get_string (ci, &conf->instance);
+ if (status != 0)
+ {
+ sfree (conf);
+ return (status);
+ }
+ assert (conf->instance != NULL);
+
+ if (strcmp ("localhost", conf->instance) == 0)
+ {
+ sfree (conf->instance);
+ conf->instance = NULL;
+ }
+ }
+ else if (ci->values_num > 1)
+ {
+ WARNING ("Varnish plugin: \"Instance\" blocks accept only "
+ "one argument.");
+ return (EINVAL);
+ }
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("CollectCache", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_cache);
+ else if (strcasecmp ("CollectConnections", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_connections);
+ else if (strcasecmp ("CollectESI", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_esi);
+ else if (strcasecmp ("CollectBackend", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_backend);
+ else if (strcasecmp ("CollectFetch", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_fetch);
+ else if (strcasecmp ("CollectHCB", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_hcb);
+ else if (strcasecmp ("CollectSHM", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_shm);
+ else if (strcasecmp ("CollectSMA", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_sma);
+ else if (strcasecmp ("CollectSMS", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_sms);
+ else if (strcasecmp ("CollectSM", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_sm);
+ else if (strcasecmp ("CollectTotals", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_totals);
+ else if (strcasecmp ("CollectWorkers", child->key) == 0)
+ cf_util_get_boolean (child, &conf->collect_workers);
+ else
+ {
+ WARNING ("Varnish plugin: Ignoring unknown "
+ "configuration option: \"%s\"",
+ child->key);
+ }
+ }
+
+ if (!conf->collect_cache
+ && !conf->collect_connections
+ && !conf->collect_esi
+ && !conf->collect_backend
+ && !conf->collect_fetch
+ && !conf->collect_hcb
+ && !conf->collect_shm
+ && !conf->collect_sma
+ && !conf->collect_sms
+ && !conf->collect_sm
+ && !conf->collect_totals
+ && !conf->collect_workers)
+ {
+ WARNING ("Varnish plugin: No metric has been configured for "
+ "instance \"%s\". Disabling this instance.",
+ (conf->instance == NULL) ? "localhost" : conf->instance);
+ return (EINVAL);
+ }
+
+ ssnprintf (callback_name, sizeof (callback_name), "varnish/%s",
+ (conf->instance == NULL) ? "localhost" : conf->instance);
+
+ ud.data = conf;
+ ud.free_func = varnish_config_free;
+
+ plugin_register_complex_read (/* group = */ "varnish",
+ /* name = */ callback_name,
+ /* callback = */ varnish_read,
+ /* interval = */ NULL,
+ /* user data = */ &ud);
+
+ have_instance = 1;
+
+ return (0);
+} /* }}} int varnish_config_instance */
+
+static int varnish_config (oconfig_item_t *ci) /* {{{ */
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Instance", child->key) == 0)
+ varnish_config_instance (child);
+ else
+ {
+ WARNING ("Varnish plugin: Ignoring unknown "
+ "configuration option: \"%s\"",
+ child->key);
+ }
+ }
+
+ return (0);
+} /* }}} int varnish_config */
+
void module_register (void) /* {{{ */
{
- plugin_register_config("varnish", varnish_config, config_keys, config_keys_num);
- plugin_register_read("varnish", varnish_read);
+ plugin_register_complex_config ("varnish", varnish_config);
+ plugin_register_init ("varnish", varnish_init);
} /* }}} */
/* vim: set sw=8 noet fdm=marker : */
projects / collectd.git / blobdiff