From 8193ab130d383015697c992694c625862d873c14 Mon Sep 17 00:00:00 2001
From: Florian Forster <sifnfors@faui02g.informatik.uni-erlangen.de>
Date: Mon, 29 Jan 2007 15:08:52 +0100
Subject: [PATCH] src/plugin.[ch]: Provide unregister-functions for plugins to
 remove certain functions.

---
 src/plugin.c | 39 +++++++++++++++++++++++++++++++++++++++
 src/plugin.h |  6 ++++++
 2 files changed, 45 insertions(+)

diff --git a/src/plugin.c b/src/plugin.c
index b40d62a1..df2eb6b5 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -77,6 +77,20 @@ static int register_callback (llist_t **list, const char *name, void *callback)
 	return (0);
 } /* int register_callback */
 
+static int plugin_unregister (llist_t *list, const char *name)
+{
+	llentry_t *e;
+
+	e = llist_search (list, name);
+
+	if (e == NULL)
+		return (-1);
+
+	llist_remove (list, e);
+
+	return (0);
+} /* int plugin_unregister */
+
 /*
  * (Try to) load the shared object `file'. Won't complain if it isn't a shared
  * object, but it will bitch about a shared object not having a
@@ -235,6 +249,31 @@ int plugin_register_data_set (const data_set_t *ds)
 	return (register_callback (&list_data_set, ds->type, (void *) ds));
 } /* int plugin_register_data_set */
 
+int plugin_unregister_init (const char *name)
+{
+	return (plugin_unregister (list_init, name));
+}
+
+int plugin_unregister_read (const char *name)
+{
+	return (plugin_unregister (list_read, name));
+}
+
+int plugin_unregister_write (const char *name)
+{
+	return (plugin_unregister (list_write, name));
+}
+
+int plugin_unregister_shutdown (const char *name)
+{
+	return (plugin_unregister (list_shutdown, name));
+}
+
+int plugin_unregister_data_set (const char *name)
+{
+	return (plugin_unregister (list_data_set, name));
+}
+
 void plugin_init_all (void)
 {
 	int (*callback) (void);
diff --git a/src/plugin.h b/src/plugin.h
index 107078e7..b0bdbee1 100644
--- a/src/plugin.h
+++ b/src/plugin.h
@@ -138,6 +138,12 @@ int plugin_register_shutdown (char *name,
 		int (*callback) (void));
 int plugin_register_data_set (const data_set_t *ds);
 
+int plugin_unregister_init (const char *name);
+int plugin_unregister_read (const char *name);
+int plugin_unregister_write (const char *name);
+int plugin_unregister_shutdown (const char *name);
+int plugin_unregister_data_set (const char *name);
+
 /*
  * NAME
  *  plugin_dispatch_values
-- 
2.11.0