modbus plugin: Fix a small memory leak in mb_config_add_datagroup().

[collectd.git] / src / plugin.h

diff --git a/src/plugin.h b/src/plugin.h
index bc873b0..4d5201b 100644 (file)
--- a/src/plugin.h
+++ b/src/plugin.h
@@ -173,7 +173,7 @@ typedef int (*plugin_flush_cb) (cdtime_t timeout, const char *identifier,
 /* "missing" callback. Returns less than zero on failure, zero if other
  * callbacks should be called, greater than zero if no more callbacks should be
  * called. */
-typedef int (*plugin_missing_cb) (const value_list_t *);
+typedef int (*plugin_missing_cb) (const value_list_t *, user_data_t *);
 typedef void (*plugin_log_cb) (int severity, const char *message,
                user_data_t *);
 typedef int (*plugin_shutdown_cb) (void);
@@ -269,6 +269,8 @@ int plugin_register_init (const char *name,
                plugin_init_cb callback);
 int plugin_register_read (const char *name,
                int (*callback) (void));
+/* "user_data" will be freed automatically, unless
+ * "plugin_register_complex_read" returns an error (non-zero). */
 int plugin_register_complex_read (const char *group, const char *name,
                plugin_read_cb callback,
                const struct timespec *interval,