From e595975cb2c0e9452d08a40691534612353fd20c Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@leeloo.lan.home.verplant.org>
Date: Sun, 5 Dec 2010 11:23:31 +0100
Subject: [PATCH] threshold plugin: Implement dispatching "missing"
 notifications.

---
 src/threshold.c   | 34 ++++++++++++++++++++-
 src/utils_cache.c | 75 -----------------------------------------------
 2 files changed, 33 insertions(+), 76 deletions(-)

diff --git a/src/threshold.c b/src/threshold.c
index 7d48244c..369051a2 100644
--- a/src/threshold.c
+++ b/src/threshold.c
@@ -886,7 +886,7 @@ static int ut_check_one_threshold (const data_set_t *ds,
 } /* }}} int ut_check_one_threshold */
 
 /*
- * int ut_check_threshold (PUBLIC)
+ * int ut_check_threshold
  *
  * Gets a list of matching thresholds and searches for the worst status by one
  * of the thresholds. Then reports that status using the ut_report_state
@@ -958,9 +958,41 @@ static int ut_check_threshold (const data_set_t *ds, const value_list_t *vl,
   return (0);
 } /* }}} int ut_check_threshold */
 
+/*
+ * int ut_missing
+ *
+ * This function is called whenever a value goes "missing".
+ */
+static int ut_missing (const value_list_t *vl,
+    __attribute__((unused)) user_data_t *ud)
+{ /* {{{ */
+  threshold_t *th;
+  cdtime_t missing_time;
+  char identifier[6 * DATA_MAX_NAME_LEN];
+  notification_t n;
+
+  th = threshold_search (vl);
+  if (th == NULL)
+    return (0);
+
+  missing_time = cdtime () - vl->time;
+  FORMAT_VL (identifier, sizeof (identifier), vl);
+
+  NOTIFICATION_INIT_VL (&n, vl);
+  ssnprintf (n.message, sizeof (n.message),
+      "%s has not been updated for %.3f seconds.",
+      identifier, CDTIME_T_TO_DOUBLE (missing_time));
+
+  plugin_dispatch_notification (&n);
+
+  return (0);
+} /* }}} int ut_missing */
+
 void module_register (void)
 {
   plugin_register_complex_config ("threshold", ut_config);
+  plugin_register_missing ("threshold", ut_missing,
+      /* user data = */ NULL);
   plugin_register_write ("threshold", ut_check_threshold,
       /* user data = */ NULL);
 }
diff --git a/src/utils_cache.c b/src/utils_cache.c
index 2ed58706..dd5bcb59 100644
--- a/src/utils_cache.c
+++ b/src/utils_cache.c
@@ -119,81 +119,6 @@ static void cache_free (cache_entry_t *ce)
   sfree (ce);
 } /* void cache_free */
 
-__attribute__((unused))
-static int uc_send_notification (const char *name)
-{
-  cache_entry_t *ce = NULL;
-  int status;
-
-  char *name_copy;
-  char *host;
-  char *plugin;
-  char *plugin_instance;
-  char *type;
-  char *type_instance;
-
-  notification_t n;
-
-  name_copy = strdup (name);
-  if (name_copy == NULL)
-  {
-    ERROR ("uc_send_notification: strdup failed.");
-    return (-1);
-  }
-
-  status = parse_identifier (name_copy, &host,
-      &plugin, &plugin_instance,
-      &type, &type_instance);
-  if (status != 0)
-  {
-    ERROR ("uc_send_notification: Cannot parse name `%s'", name);
-    return (-1);
-  }
-
-  /* Copy the associative members */
-  notification_init (&n, NOTIF_FAILURE, /* host = */ NULL,
-      host, plugin, plugin_instance, type, type_instance);
-
-  sfree (name_copy);
-  name_copy = host = plugin = plugin_instance = type = type_instance = NULL;
-
-  pthread_mutex_lock (&cache_lock);
-
-  /*
-   * Set the time _after_ getting the lock because we don't know how long
-   * acquiring the lock takes and we will use this time later to decide
-   * whether or not the state is OKAY.
-   */
-  n.time = cdtime ();
-
-  status = c_avl_get (cache_tree, name, (void *) &ce);
-  if (status != 0)
-  {
-    pthread_mutex_unlock (&cache_lock);
-    sfree (name_copy);
-    return (-1);
-  }
-    
-  /* Check if the entry has been updated in the meantime */
-  if ((n.time - ce->last_update) < (timeout_g * ce->interval))
-  {
-    ce->state = STATE_OKAY;
-    pthread_mutex_unlock (&cache_lock);
-    sfree (name_copy);
-    return (-1);
-  }
-
-  ssnprintf (n.message, sizeof (n.message),
-      "%s has not been updated for %.3f seconds.", name,
-      CDTIME_T_TO_DOUBLE (n.time - ce->last_update));
-
-  pthread_mutex_unlock (&cache_lock);
-
-  plugin_dispatch_notification (&n);
-
-  return (0);
-} /* int uc_send_notification */
-
 static void uc_check_range (const data_set_t *ds, cache_entry_t *ce)
 {
   int i;
-- 
2.30.2