![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/write_riemann.c b/src/write_riemann.c
--- a/src/write_riemann.c
+++ /dev/null
@@ -1,1084 +0,0 @@
-/**
- * collectd - src/write_riemann.c
- * Copyright (C) 2012,2013 Pierre-Yves Ritschard
- * Copyright (C) 2013 Florian octo Forster
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Pierre-Yves Ritschard <pyr at spootnik.org>
- * Florian octo Forster <octo at collectd.org>
- */
-
-#include "collectd.h"
-#include "plugin.h"
-#include "common.h"
-#include "configfile.h"
-#include "utils_cache.h"
-#include "riemann.pb-c.h"
-
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <errno.h>
-#include <netdb.h>
-#include <inttypes.h>
-#include <pthread.h>
-
-#define RIEMANN_HOST "localhost"
-#define RIEMANN_PORT "5555"
-#define RIEMANN_TTL_FACTOR 2.0
-#define RIEMANN_BATCH_MAX 8192
-
-int write_riemann_threshold_check(const data_set_t *, const value_list_t *, int *);
-
-struct riemann_host {
- char *name;
- char *event_service_prefix;
-#define F_CONNECT 0x01
- uint8_t flags;
- pthread_mutex_t lock;
- _Bool batch_mode;
- _Bool notifications;
- _Bool check_thresholds;
- _Bool store_rates;
- _Bool always_append_ds;
- char *node;
- char *service;
- _Bool use_tcp;
- int s;
- double ttl_factor;
- Msg *batch_msg;
- cdtime_t batch_init;
- int batch_max;
- int reference_count;
-};
-
-static char **riemann_tags;
-static size_t riemann_tags_num;
-static char **riemann_attrs;
-static size_t riemann_attrs_num;
-
-static void riemann_event_protobuf_free (Event *event) /* {{{ */
-{
- size_t i;
-
- if (event == NULL)
- return;
-
- sfree (event->state);
- sfree (event->service);
- sfree (event->host);
- sfree (event->description);
-
- strarray_free (event->tags, event->n_tags);
- event->tags = NULL;
- event->n_tags = 0;
-
- for (i = 0; i < event->n_attributes; i++)
- {
- sfree (event->attributes[i]->key);
- sfree (event->attributes[i]->value);
- sfree (event->attributes[i]);
- }
- sfree (event->attributes);
- event->n_attributes = 0;
-
- sfree (event);
-} /* }}} void riemann_event_protobuf_free */
-
-static void riemann_msg_protobuf_free(Msg *msg) /* {{{ */
-{
- size_t i;
-
- if (msg == NULL)
- return;
-
- for (i = 0; i < msg->n_events; i++)
- {
- riemann_event_protobuf_free (msg->events[i]);
- msg->events[i] = NULL;
- }
-
- sfree (msg->events);
- msg->n_events = 0;
-
- sfree (msg);
-} /* }}} void riemann_msg_protobuf_free */
-
-/* host->lock must be held when calling this function. */
-static int riemann_connect(struct riemann_host *host) /* {{{ */
-{
- int e;
- struct addrinfo *ai, *res, hints;
- char const *node;
- char const *service;
-
- if (host->flags & F_CONNECT)
- return 0;
-
- memset(&hints, 0, sizeof(hints));
- memset(&service, 0, sizeof(service));
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = host->use_tcp ? SOCK_STREAM : SOCK_DGRAM;
-#ifdef AI_ADDRCONFIG
- hints.ai_flags |= AI_ADDRCONFIG;
-#endif
-
- node = (host->node != NULL) ? host->node : RIEMANN_HOST;
- service = (host->service != NULL) ? host->service : RIEMANN_PORT;
-
- if ((e = getaddrinfo(node, service, &hints, &res)) != 0) {
- ERROR ("write_riemann plugin: Unable to resolve host \"%s\": %s",
- node, gai_strerror(e));
- return -1;
- }
-
- host->s = -1;
- for (ai = res; ai != NULL; ai = ai->ai_next) {
- if ((host->s = socket(ai->ai_family,
- ai->ai_socktype,
- ai->ai_protocol)) == -1) {
- continue;
- }
-
- if (connect(host->s, ai->ai_addr, ai->ai_addrlen) != 0) {
- close(host->s);
- host->s = -1;
- continue;
- }
-
- host->flags |= F_CONNECT;
- DEBUG("write_riemann plugin: got a successful connection for: %s:%s",
- node, service);
- break;
- }
-
- freeaddrinfo(res);
-
- if (host->s < 0) {
- WARNING("write_riemann plugin: Unable to connect to Riemann at %s:%s",
- node, service);
- return -1;
- }
- return 0;
-} /* }}} int riemann_connect */
-
-/* host->lock must be held when calling this function. */
-static int riemann_disconnect (struct riemann_host *host) /* {{{ */
-{
- if ((host->flags & F_CONNECT) == 0)
- return (0);
-
- close (host->s);
- host->s = -1;
- host->flags &= ~F_CONNECT;
-
- return (0);
-} /* }}} int riemann_disconnect */
-
-static int riemann_send_msg (struct riemann_host *host, const Msg *msg) /* {{{ */
-{
- int status = 0;
- u_char *buffer = NULL;
- size_t buffer_len;
-
- status = riemann_connect (host);
- if (status != 0)
- return status;
-
- buffer_len = msg__get_packed_size(msg);
-
- if (host->use_tcp)
- buffer_len += 4;
-
- buffer = malloc (buffer_len);
- if (buffer == NULL) {
- ERROR ("write_riemann plugin: malloc failed.");
- return ENOMEM;
- }
- memset (buffer, 0, buffer_len);
-
- if (host->use_tcp)
- {
- uint32_t length = htonl ((uint32_t) (buffer_len - 4));
- memcpy (buffer, &length, 4);
- msg__pack(msg, buffer + 4);
- }
- else
- {
- msg__pack(msg, buffer);
- }
-
- status = (int) swrite (host->s, buffer, buffer_len);
- if (status != 0)
- {
- char errbuf[1024];
- ERROR ("write_riemann plugin: Sending to Riemann at %s:%s failed: %s",
- (host->node != NULL) ? host->node : RIEMANN_HOST,
- (host->service != NULL) ? host->service : RIEMANN_PORT,
- sstrerror (errno, errbuf, sizeof (errbuf)));
- sfree (buffer);
- return -1;
- }
-
- sfree (buffer);
- return 0;
-} /* }}} int riemann_send_msg */
-
-static int riemann_recv_ack(struct riemann_host *host) /* {{{ */
-{
- int status = 0;
- Msg *msg = NULL;
- uint32_t header;
-
- status = (int) sread (host->s, &header, 4);
-
- if (status != 0)
- return -1;
-
- size_t size = ntohl(header);
-
- // Buffer on the stack since acknowledges are typically small.
- u_char buffer[size];
- memset (buffer, 0, size);
-
- status = (int) sread (host->s, buffer, size);
-
- if (status != 0)
- return status;
-
- msg = msg__unpack (NULL, size, buffer);
-
- if (msg == NULL)
- return -1;
-
- if (!msg->ok)
- {
- ERROR ("write_riemann plugin: Sending to Riemann at %s:%s acknowledgement message reported error: %s",
- (host->node != NULL) ? host->node : RIEMANN_HOST,
- (host->service != NULL) ? host->service : RIEMANN_PORT,
- msg->error);
-
- msg__free_unpacked(msg, NULL);
- return -1;
- }
-
- msg__free_unpacked (msg, NULL);
- return 0;
-} /* }}} int riemann_recv_ack */
-
-/**
- * Function to send messages (Msg) to riemann.
- *
- * Acquires the host lock, disconnects on errors.
- */
-static int riemann_send(struct riemann_host *host, Msg const *msg) /* {{{ */
-{
- int status = 0;
- pthread_mutex_lock (&host->lock);
-
- status = riemann_send_msg(host, msg);
- if (status != 0) {
- riemann_disconnect (host);
- pthread_mutex_unlock (&host->lock);
- return status;
- }
-
- /*
- * For TCP we need to receive message acknowledgemenent.
- */
- if (host->use_tcp)
- {
- status = riemann_recv_ack(host);
-
- if (status != 0)
- {
- riemann_disconnect (host);
- pthread_mutex_unlock (&host->lock);
- return status;
- }
- }
-
- pthread_mutex_unlock (&host->lock);
- return 0;
-} /* }}} int riemann_send */
-
-static int riemann_event_add_tag (Event *event, char const *tag) /* {{{ */
-{
- return (strarray_add (&event->tags, &event->n_tags, tag));
-} /* }}} int riemann_event_add_tag */
-
-static int riemann_event_add_attribute(Event *event, /* {{{ */
- char const *key, char const *value)
-{
- Attribute **new_attributes;
- Attribute *a;
-
- new_attributes = realloc (event->attributes,
- sizeof (*event->attributes) * (event->n_attributes + 1));
- if (new_attributes == NULL)
- {
- ERROR ("write_riemann plugin: realloc failed.");
- return (ENOMEM);
- }
- event->attributes = new_attributes;
-
- a = malloc (sizeof (*a));
- if (a == NULL)
- {
- ERROR ("write_riemann plugin: malloc failed.");
- return (ENOMEM);
- }
- attribute__init (a);
-
- a->key = strdup (key);
- if (value != NULL)
- a->value = strdup (value);
-
- event->attributes[event->n_attributes] = a;
- event->n_attributes++;
-
- return (0);
-} /* }}} int riemann_event_add_attribute */
-
-static Msg *riemann_notification_to_protobuf(struct riemann_host *host, /* {{{ */
- notification_t const *n)
-{
- Msg *msg;
- Event *event;
- char service_buffer[6 * DATA_MAX_NAME_LEN];
- char const *severity;
- notification_meta_t *meta;
- int i;
-
- msg = malloc (sizeof (*msg));
- if (msg == NULL)
- {
- ERROR ("write_riemann plugin: malloc failed.");
- return (NULL);
- }
- memset (msg, 0, sizeof (*msg));
- msg__init (msg);
-
- msg->events = malloc (sizeof (*msg->events));
- if (msg->events == NULL)
- {
- ERROR ("write_riemann plugin: malloc failed.");
- sfree (msg);
- return (NULL);
- }
-
- event = malloc (sizeof (*event));
- if (event == NULL)
- {
- ERROR ("write_riemann plugin: malloc failed.");
- sfree (msg->events);
- sfree (msg);
- return (NULL);
- }
- memset (event, 0, sizeof (*event));
- event__init (event);
-
- msg->events[0] = event;
- msg->n_events = 1;
-
- event->host = strdup (n->host);
- event->time = CDTIME_T_TO_TIME_T (n->time);
- event->has_time = 1;
-
- switch (n->severity)
- {
- case NOTIF_OKAY: severity = "ok"; break;
- case NOTIF_WARNING: severity = "warning"; break;
- case NOTIF_FAILURE: severity = "critical"; break;
- default: severity = "unknown";
- }
- event->state = strdup (severity);
-
- riemann_event_add_tag (event, "notification");
- if (n->host[0] != 0)
- riemann_event_add_attribute (event, "host", n->host);
- if (n->plugin[0] != 0)
- riemann_event_add_attribute (event, "plugin", n->plugin);
- if (n->plugin_instance[0] != 0)
- riemann_event_add_attribute (event, "plugin_instance",
- n->plugin_instance);
-
- if (n->type[0] != 0)
- riemann_event_add_attribute (event, "type", n->type);
- if (n->type_instance[0] != 0)
- riemann_event_add_attribute (event, "type_instance",
- n->type_instance);
-
- for (i = 0; i < riemann_attrs_num; i += 2)
- riemann_event_add_attribute(event,
- riemann_attrs[i],
- riemann_attrs[i +1]);
-
- for (i = 0; i < riemann_tags_num; i++)
- riemann_event_add_tag (event, riemann_tags[i]);
-
- format_name (service_buffer, sizeof (service_buffer),
- /* host = */ "", n->plugin, n->plugin_instance,
- n->type, n->type_instance);
- event->service = strdup (&service_buffer[1]);
-
- if (n->message[0] != 0)
- riemann_event_add_attribute (event, "description", n->message);
-
- /* Pull in values from threshold and add extra attributes */
- for (meta = n->meta; meta != NULL; meta = meta->next)
- {
- if (strcasecmp ("CurrentValue", meta->name) == 0 && meta->type == NM_TYPE_DOUBLE)
- {
- event->metric_d = meta->nm_value.nm_double;
- event->has_metric_d = 1;
- continue;
- }
-
- if (meta->type == NM_TYPE_STRING) {
- riemann_event_add_attribute (event, meta->name, meta->nm_value.nm_string);
- continue;
- }
- }
-
- DEBUG ("write_riemann plugin: Successfully created protobuf for notification: "
- "host = \"%s\", service = \"%s\", state = \"%s\"",
- event->host, event->service, event->state);
- return (msg);
-} /* }}} Msg *riemann_notification_to_protobuf */
-
-static Event *riemann_value_to_protobuf(struct riemann_host const *host, /* {{{ */
- data_set_t const *ds,
- value_list_t const *vl, size_t index,
- gauge_t const *rates,
- int status)
-{
- Event *event;
- char name_buffer[5 * DATA_MAX_NAME_LEN];
- char service_buffer[6 * DATA_MAX_NAME_LEN];
- double ttl;
- int i;
-
- event = malloc (sizeof (*event));
- if (event == NULL)
- {
- ERROR ("write_riemann plugin: malloc failed.");
- return (NULL);
- }
- memset (event, 0, sizeof (*event));
- event__init (event);
-
- event->host = strdup (vl->host);
- event->time = CDTIME_T_TO_TIME_T (vl->time);
- event->has_time = 1;
-
- if (host->check_thresholds) {
- switch (status) {
- case STATE_OKAY:
- event->state = strdup("ok");
- break;
- case STATE_ERROR:
- event->state = strdup("critical");
- break;
- case STATE_WARNING:
- event->state = strdup("warning");
- break;
- case STATE_MISSING:
- event->state = strdup("unknown");
- break;
- }
- }
-
- ttl = CDTIME_T_TO_DOUBLE (vl->interval) * host->ttl_factor;
- event->ttl = (float) ttl;
- event->has_ttl = 1;
-
- riemann_event_add_attribute (event, "plugin", vl->plugin);
- if (vl->plugin_instance[0] != 0)
- riemann_event_add_attribute (event, "plugin_instance",
- vl->plugin_instance);
-
- riemann_event_add_attribute (event, "type", vl->type);
- if (vl->type_instance[0] != 0)
- riemann_event_add_attribute (event, "type_instance",
- vl->type_instance);
-
- if ((ds->ds[index].type != DS_TYPE_GAUGE) && (rates != NULL))
- {
- char ds_type[DATA_MAX_NAME_LEN];
-
- ssnprintf (ds_type, sizeof (ds_type), "%s:rate",
- DS_TYPE_TO_STRING(ds->ds[index].type));
- riemann_event_add_attribute (event, "ds_type", ds_type);
- }
- else
- {
- riemann_event_add_attribute (event, "ds_type",
- DS_TYPE_TO_STRING(ds->ds[index].type));
- }
- riemann_event_add_attribute (event, "ds_name", ds->ds[index].name);
- {
- char ds_index[DATA_MAX_NAME_LEN];
-
- ssnprintf (ds_index, sizeof (ds_index), "%zu", index);
- riemann_event_add_attribute (event, "ds_index", ds_index);
- }
-
- for (i = 0; i < riemann_attrs_num; i += 2)
- riemann_event_add_attribute(event,
- riemann_attrs[i],
- riemann_attrs[i +1]);
-
- for (i = 0; i < riemann_tags_num; i++)
- riemann_event_add_tag (event, riemann_tags[i]);
-
- if (ds->ds[index].type == DS_TYPE_GAUGE)
- {
- event->has_metric_d = 1;
- event->metric_d = (double) vl->values[index].gauge;
- }
- else if (rates != NULL)
- {
- event->has_metric_d = 1;
- event->metric_d = (double) rates[index];
- }
- else
- {
- event->has_metric_sint64 = 1;
- if (ds->ds[index].type == DS_TYPE_DERIVE)
- event->metric_sint64 = (int64_t) vl->values[index].derive;
- else if (ds->ds[index].type == DS_TYPE_ABSOLUTE)
- event->metric_sint64 = (int64_t) vl->values[index].absolute;
- else
- event->metric_sint64 = (int64_t) vl->values[index].counter;
- }
-
- format_name (name_buffer, sizeof (name_buffer),
- /* host = */ "", vl->plugin, vl->plugin_instance,
- vl->type, vl->type_instance);
- if (host->always_append_ds || (ds->ds_num > 1))
- {
- if (host->event_service_prefix == NULL)
- ssnprintf (service_buffer, sizeof (service_buffer), "%s/%s",
- &name_buffer[1], ds->ds[index].name);
- else
- ssnprintf (service_buffer, sizeof (service_buffer), "%s%s/%s",
- host->event_service_prefix, &name_buffer[1], ds->ds[index].name);
- }
- else
- {
- if (host->event_service_prefix == NULL)
- sstrncpy (service_buffer, &name_buffer[1], sizeof (service_buffer));
- else
- ssnprintf (service_buffer, sizeof (service_buffer), "%s%s",
- host->event_service_prefix, &name_buffer[1]);
- }
-
- event->service = strdup (service_buffer);
-
- DEBUG ("write_riemann plugin: Successfully created protobuf for metric: "
- "host = \"%s\", service = \"%s\"",
- event->host, event->service);
- return (event);
-} /* }}} Event *riemann_value_to_protobuf */
-
-static Msg *riemann_value_list_to_protobuf (struct riemann_host const *host, /* {{{ */
- data_set_t const *ds,
- value_list_t const *vl,
- int *statuses)
-{
- Msg *msg;
- size_t i;
- gauge_t *rates = NULL;
-
- /* Initialize the Msg structure. */
- msg = malloc (sizeof (*msg));
- if (msg == NULL)
- {
- ERROR ("write_riemann plugin: malloc failed.");
- return (NULL);
- }
- memset (msg, 0, sizeof (*msg));
- msg__init (msg);
-
- /* Set up events. First, the list of pointers. */
- msg->n_events = (size_t) vl->values_len;
- msg->events = calloc (msg->n_events, sizeof (*msg->events));
- if (msg->events == NULL)
- {
- ERROR ("write_riemann plugin: calloc failed.");
- riemann_msg_protobuf_free (msg);
- return (NULL);
- }
-
- if (host->store_rates)
- {
- rates = uc_get_rate (ds, vl);
- if (rates == NULL)
- {
- ERROR ("write_riemann plugin: uc_get_rate failed.");
- riemann_msg_protobuf_free (msg);
- return (NULL);
- }
- }
-
- for (i = 0; i < msg->n_events; i++)
- {
- msg->events[i] = riemann_value_to_protobuf (host, ds, vl,
- (int) i, rates, statuses[i]);
- if (msg->events[i] == NULL)
- {
- riemann_msg_protobuf_free (msg);
- sfree (rates);
- return (NULL);
- }
- }
-
- sfree (rates);
- return (msg);
-} /* }}} Msg *riemann_value_list_to_protobuf */
-
-
-/*
- * Always call while holding host->lock !
- */
-static int riemann_batch_flush_nolock (cdtime_t timeout,
- struct riemann_host *host)
-{
- cdtime_t now;
- int status = 0;
-
- if (timeout > 0) {
- now = cdtime ();
- if ((host->batch_init + timeout) > now)
- return status;
- }
- riemann_send_msg(host, host->batch_msg);
- riemann_msg_protobuf_free(host->batch_msg);
-
- if (host->use_tcp && ((status = riemann_recv_ack(host)) != 0))
- riemann_disconnect (host);
-
- host->batch_init = cdtime();
- host->batch_msg = NULL;
- return status;
-}
-
-static int riemann_batch_flush (cdtime_t timeout,
- const char *identifier __attribute__((unused)),
- user_data_t *user_data)
-{
- struct riemann_host *host;
- int status;
-
- if (user_data == NULL)
- return (-EINVAL);
-
- host = user_data->data;
- pthread_mutex_lock (&host->lock);
- status = riemann_batch_flush_nolock (timeout, host);
- if (status != 0)
- ERROR ("write_riemann plugin: riemann_send failed with status %i",
- status);
-
- pthread_mutex_unlock(&host->lock);
- return status;
-}
-
-static int riemann_batch_add_value_list (struct riemann_host *host, /* {{{ */
- data_set_t const *ds,
- value_list_t const *vl,
- int *statuses)
-{
- size_t i;
- Event **events;
- Msg *msg;
- size_t len;
- int ret;
-
- msg = riemann_value_list_to_protobuf (host, ds, vl, statuses);
- if (msg == NULL)
- return -1;
-
- pthread_mutex_lock(&host->lock);
-
- if (host->batch_msg == NULL) {
- host->batch_msg = msg;
- } else {
- len = msg->n_events + host->batch_msg->n_events;
- events = realloc(host->batch_msg->events,
- (len * sizeof(*host->batch_msg->events)));
- if (events == NULL) {
- pthread_mutex_unlock(&host->lock);
- ERROR ("write_riemann plugin: out of memory");
- riemann_msg_protobuf_free (msg);
- return -1;
- }
- host->batch_msg->events = events;
-
- for (i = host->batch_msg->n_events; i < len; i++)
- host->batch_msg->events[i] = msg->events[i - host->batch_msg->n_events];
-
- host->batch_msg->n_events = len;
- sfree (msg->events);
- msg->n_events = 0;
- sfree (msg);
- }
-
- len = msg__get_packed_size(host->batch_msg);
- ret = 0;
- if (len >= host->batch_max) {
- ret = riemann_batch_flush_nolock(0, host);
- }
-
- pthread_mutex_unlock(&host->lock);
- return ret;
-} /* }}} Msg *riemann_batch_add_value_list */
-
-static int riemann_notification(const notification_t *n, user_data_t *ud) /* {{{ */
-{
- int status;
- struct riemann_host *host = ud->data;
- Msg *msg;
-
- if (!host->notifications)
- return 0;
-
- /*
- * Never batch for notifications, send them ASAP
- */
- msg = riemann_notification_to_protobuf (host, n);
- if (msg == NULL)
- return (-1);
-
- status = riemann_send (host, msg);
- if (status != 0)
- ERROR ("write_riemann plugin: riemann_send failed with status %i",
- status);
-
- riemann_msg_protobuf_free (msg);
- return (status);
-} /* }}} int riemann_notification */
-
-static int riemann_write(const data_set_t *ds, /* {{{ */
- const value_list_t *vl,
- user_data_t *ud)
-{
- int status = 0;
- int statuses[vl->values_len];
- struct riemann_host *host = ud->data;
- Msg *msg;
-
- if (host->check_thresholds)
- write_riemann_threshold_check(ds, vl, statuses);
-
- if (host->use_tcp == 1 && host->batch_mode) {
-
- riemann_batch_add_value_list (host, ds, vl, statuses);
-
-
- } else {
-
- msg = riemann_value_list_to_protobuf (host, ds, vl, statuses);
- if (msg == NULL)
- return (-1);
-
- status = riemann_send (host, msg);
- if (status != 0)
- ERROR ("write_riemann plugin: riemann_send failed with status %i",
- status);
-
- riemann_msg_protobuf_free (msg);
- }
- return status;
-} /* }}} int riemann_write */
-
-static void riemann_free(void *p) /* {{{ */
-{
- struct riemann_host *host = p;
-
- if (host == NULL)
- return;
-
- pthread_mutex_lock (&host->lock);
-
- host->reference_count--;
- if (host->reference_count > 0)
- {
- pthread_mutex_unlock (&host->lock);
- return;
- }
-
- riemann_disconnect (host);
-
- sfree(host->service);
- pthread_mutex_destroy (&host->lock);
- sfree(host);
-} /* }}} void riemann_free */
-
-static int riemann_config_node(oconfig_item_t *ci) /* {{{ */
-{
- struct riemann_host *host = NULL;
- int status = 0;
- int i;
- oconfig_item_t *child;
- char callback_name[DATA_MAX_NAME_LEN];
- user_data_t ud;
-
- if ((host = calloc(1, sizeof (*host))) == NULL) {
- ERROR ("write_riemann plugin: calloc failed.");
- return ENOMEM;
- }
- pthread_mutex_init (&host->lock, NULL);
- host->reference_count = 1;
- host->node = NULL;
- host->service = NULL;
- host->notifications = 1;
- host->check_thresholds = 0;
- host->store_rates = 1;
- host->always_append_ds = 0;
- host->use_tcp = 1;
- host->batch_mode = 1;
- host->batch_max = RIEMANN_BATCH_MAX; /* typical MSS */
- host->batch_init = cdtime();
- host->ttl_factor = RIEMANN_TTL_FACTOR;
-
- status = cf_util_get_string (ci, &host->name);
- if (status != 0) {
- WARNING("write_riemann plugin: Required host name is missing.");
- riemann_free (host);
- return -1;
- }
-
- for (i = 0; i < ci->children_num; i++) {
- /*
- * The code here could be simplified but makes room
- * for easy adding of new options later on.
- */
- child = &ci->children[i];
- status = 0;
-
- if (strcasecmp ("Host", child->key) == 0) {
- status = cf_util_get_string (child, &host->node);
- if (status != 0)
- break;
- } else if (strcasecmp ("Notifications", child->key) == 0) {
- status = cf_util_get_boolean(child, &host->notifications);
- if (status != 0)
- break;
- } else if (strcasecmp ("EventServicePrefix", child->key) == 0) {
- status = cf_util_get_string (child, &host->event_service_prefix);
- if (status != 0)
- break;
- } else if (strcasecmp ("CheckThresholds", child->key) == 0) {
- status = cf_util_get_boolean(child, &host->check_thresholds);
- if (status != 0)
- break;
- } else if (strcasecmp ("Batch", child->key) == 0) {
- status = cf_util_get_boolean(child, &host->batch_mode);
- if (status != 0)
- break;
- } else if (strcasecmp("BatchMaxSize", child->key) == 0) {
- status = cf_util_get_int(child, &host->batch_max);
- if (status != 0)
- break;
- } else if (strcasecmp ("Port", child->key) == 0) {
- status = cf_util_get_service (child, &host->service);
- if (status != 0) {
- ERROR ("write_riemann plugin: Invalid argument "
- "configured for the \"Port\" "
- "option.");
- break;
- }
- } else if (strcasecmp ("Protocol", child->key) == 0) {
- char tmp[16];
- status = cf_util_get_string_buffer (child,
- tmp, sizeof (tmp));
- if (status != 0)
- {
- ERROR ("write_riemann plugin: cf_util_get_"
- "string_buffer failed with "
- "status %i.", status);
- break;
- }
-
- if (strcasecmp ("UDP", tmp) == 0)
- host->use_tcp = 0;
- else if (strcasecmp ("TCP", tmp) == 0)
- host->use_tcp = 1;
- else
- WARNING ("write_riemann plugin: The value "
- "\"%s\" is not valid for the "
- "\"Protocol\" option. Use "
- "either \"UDP\" or \"TCP\".",
- tmp);
- } else if (strcasecmp ("StoreRates", child->key) == 0) {
- status = cf_util_get_boolean (child, &host->store_rates);
- if (status != 0)
- break;
- } else if (strcasecmp ("AlwaysAppendDS", child->key) == 0) {
- status = cf_util_get_boolean (child,
- &host->always_append_ds);
- if (status != 0)
- break;
- } else if (strcasecmp ("TTLFactor", child->key) == 0) {
- double tmp = NAN;
- status = cf_util_get_double (child, &tmp);
- if (status != 0)
- break;
- if (tmp >= 2.0) {
- host->ttl_factor = tmp;
- } else if (tmp >= 1.0) {
- NOTICE ("write_riemann plugin: The configured "
- "TTLFactor is very small "
- "(%.1f). A value of 2.0 or "
- "greater is recommended.",
- tmp);
- host->ttl_factor = tmp;
- } else if (tmp > 0.0) {
- WARNING ("write_riemann plugin: The configured "
- "TTLFactor is too small to be "
- "useful (%.1f). I'll use it "
- "since the user knows best, "
- "but under protest.",
- tmp);
- host->ttl_factor = tmp;
- } else { /* zero, negative and NAN */
- ERROR ("write_riemann plugin: The configured "
- "TTLFactor is invalid (%.1f).",
- tmp);
- }
- } else {
- WARNING("write_riemann plugin: ignoring unknown config "
- "option: \"%s\"", child->key);
- }
- }
- if (status != 0) {
- riemann_free (host);
- return status;
- }
-
- ssnprintf (callback_name, sizeof (callback_name), "write_riemann/%s",
- host->name);
- ud.data = host;
- ud.free_func = riemann_free;
-
- pthread_mutex_lock (&host->lock);
-
- status = plugin_register_write (callback_name, riemann_write, &ud);
-
- if (host->use_tcp == 1 && host->batch_mode) {
- ud.free_func = NULL;
- plugin_register_flush(callback_name, riemann_batch_flush, &ud);
- }
- if (status != 0)
- WARNING ("write_riemann plugin: plugin_register_write (\"%s\") "
- "failed with status %i.",
- callback_name, status);
- else /* success */
- host->reference_count++;
-
- status = plugin_register_notification (callback_name,
- riemann_notification, &ud);
- if (status != 0)
- WARNING ("write_riemann plugin: plugin_register_notification (\"%s\") "
- "failed with status %i.",
- callback_name, status);
- else /* success */
- host->reference_count++;
-
- if (host->reference_count <= 1)
- {
- /* Both callbacks failed => free memory.
- * We need to unlock here, because riemann_free() will lock.
- * This is not a race condition, because we're the only one
- * holding a reference. */
- pthread_mutex_unlock (&host->lock);
- riemann_free (host);
- return (-1);
- }
-
- host->reference_count--;
- pthread_mutex_unlock (&host->lock);
-
- return status;
-} /* }}} int riemann_config_node */
-
-static int riemann_config(oconfig_item_t *ci) /* {{{ */
-{
- int i;
- oconfig_item_t *child;
- int status;
-
- for (i = 0; i < ci->children_num; i++) {
- child = &ci->children[i];
-
- if (strcasecmp("Node", child->key) == 0) {
- riemann_config_node (child);
- } else if (strcasecmp(child->key, "attribute") == 0) {
- char *key = NULL;
- char *val = NULL;
-
- if (child->values_num != 2) {
- WARNING("riemann attributes need both a key and a value.");
- return (-1);
- }
- if (child->values[0].type != OCONFIG_TYPE_STRING ||
- child->values[1].type != OCONFIG_TYPE_STRING) {
- WARNING("riemann attribute needs string arguments.");
- return (-1);
- }
- if ((key = strdup(child->values[0].value.string)) == NULL) {
- WARNING("cannot allocate memory for attribute key.");
- return (-1);
- }
- if ((val = strdup(child->values[1].value.string)) == NULL) {
- WARNING("cannot allocate memory for attribute value.");
- return (-1);
- }
- strarray_add(&riemann_attrs, &riemann_attrs_num, key);
- strarray_add(&riemann_attrs, &riemann_attrs_num, val);
- DEBUG("write_riemann: got attr: %s => %s", key, val);
- sfree(key);
- sfree(val);
- } else if (strcasecmp(child->key, "tag") == 0) {
- char *tmp = NULL;
- status = cf_util_get_string(child, &tmp);
- if (status != 0)
- continue;
-
- strarray_add (&riemann_tags, &riemann_tags_num, tmp);
- DEBUG("write_riemann plugin: Got tag: %s", tmp);
- sfree (tmp);
- } else {
- WARNING ("write_riemann plugin: Ignoring unknown "
- "configuration option \"%s\" at top level.",
- child->key);
- }
- }
- return (0);
-} /* }}} int riemann_config */
-
-void module_register(void)
-{
- plugin_register_complex_config ("write_riemann", riemann_config);
-}
-
-/* vim: set sw=8 sts=8 ts=8 noet : */