From 0a57b248543e5adbfd38b65dabbf93870df77a07 Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@leeloo.lan.home.verplant.org>
Date: Sun, 28 Oct 2007 18:45:46 +0100
Subject: [PATCH] src/plugin.[ch]: Added a notification type and auxiliary
 functions.

---
 src/plugin.c | 34 ++++++++++++++++++++++++++++++++++
 src/plugin.h | 19 +++++++++++++++++++
 2 files changed, 53 insertions(+)

diff --git a/src/plugin.c b/src/plugin.c
index 37c91a9b..67d61880 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -54,6 +54,7 @@ static llist_t *list_write;
 static llist_t *list_shutdown;
 static llist_t *list_data_set;
 static llist_t *list_log;
+static llist_t *list_notification;
 
 static char *plugindir = NULL;
 
@@ -463,6 +464,12 @@ int plugin_register_log (char *name,
 	return (register_callback (&list_log, name, (void *) callback));
 } /* int plugin_register_log */
 
+int plugin_register_notification (const char *name,
+		int (*callback) (const notification_t *notif))
+{
+	return (register_callback (&list_log, name, (void *) callback));
+} /* int plugin_register_log */
+
 int plugin_unregister_config (const char *name)
 {
 	cf_unregister (name);
@@ -534,6 +541,11 @@ int plugin_unregister_log (const char *name)
 	return (plugin_unregister (list_log, name));
 }
 
+int plugin_unregister_notification (const char *name)
+{
+	return (plugin_unregister (list_notification, name));
+}
+
 void plugin_init_all (void)
 {
 	int (*callback) (void);
@@ -697,6 +709,28 @@ int plugin_dispatch_values (const char *name, value_list_t *vl)
 	return (0);
 } /* int plugin_dispatch_values */
 
+int plugin_dispatch_notification (const notification_t *notif)
+{
+	int (*callback) (const notification_t *);
+	llentry_t *le;
+	/* Possible TODO: Add flap detection here */
+
+	/* Nobody cares for notifications */
+	if (list_notification == NULL)
+		return (-1);
+
+	le = llist_head (list_notification);
+	while (le != NULL)
+	{
+		callback = (int (*) (const notification_t *)) le->value;
+		(*callback) (notif);
+
+		le = le->next;
+	}
+
+	return (0);
+} /* int plugin_dispatch_notification */
+
 void plugin_log (int level, const char *format, ...)
 {
 	char msg[512];
diff --git a/src/plugin.h b/src/plugin.h
index 4ca6c771..8c5acab0 100644
--- a/src/plugin.h
+++ b/src/plugin.h
@@ -45,6 +45,12 @@
 # define LOG_DEBUG 7
 #endif
 
+#define NOTIF_MAX_MSG_LEN 128
+
+#define NOTIF_FAILURE 1
+#define NOTIF_WARNING 2
+#define NOTIF_OKAY    4
+
 /*
  * Public data types
  */
@@ -97,6 +103,14 @@ typedef struct complain_s
 	unsigned int delay;    /* how many more iterations we still need to wait */
 } complain_t;
 
+typedef struct notification_s
+{
+	int    severity;
+	char   message[NOTIF_MAX_MSG_LEN];
+	time_t time;
+	char   host[DATA_MAX_NAME_LEN];
+} notification_t;
+
 /*
  * NAME
  *  plugin_set_dir
@@ -160,6 +174,8 @@ int plugin_register_shutdown (char *name,
 int plugin_register_data_set (const data_set_t *ds);
 int plugin_register_log (char *name,
 		void (*callback) (int, const char *));
+int plugin_register_notification (const char *name,
+		int (*callback) (const notification_t *notif));
 
 int plugin_unregister_config (const char *name);
 int plugin_unregister_complex_config (const char *name);
@@ -169,6 +185,7 @@ int plugin_unregister_write (const char *name);
 int plugin_unregister_shutdown (const char *name);
 int plugin_unregister_data_set (const char *name);
 int plugin_unregister_log (const char *name);
+int plugin_unregister_notification (const char *name);
 
 
 /*
@@ -188,6 +205,8 @@ int plugin_unregister_log (const char *name);
  */
 int plugin_dispatch_values (const char *name, value_list_t *vl);
 
+int plugin_dispatch_notification (const notification_t *notif);
+
 void plugin_log (int level, const char *format, ...);
 #define ERROR(...)   plugin_log (LOG_ERR,     __VA_ARGS__)
 #define WARNING(...) plugin_log (LOG_WARNING, __VA_ARGS__)
-- 
2.30.2