core: Add the store writer plugin type.

[sysdb.git] / src / include / core / plugin.h

diff --git a/src/include/core/plugin.h b/src/include/core/plugin.h
index 4e5d1046660896bb91bb5759309fda23da448758..e09bf0f346c42143948843e4e0ef84326f4ee870 100644 (file)
--- a/src/include/core/plugin.h
+++ b/src/include/core/plugin.h
@@ -30,12 +30,14 @@
 
 #include "sysdb.h"
 #include "core/object.h"
+#include "core/store.h"
 #include "core/time.h"
 #include "core/timeseries.h"
 
 #include "liboconfig/oconfig.h"
 
 #include <stdarg.h>
+#include <stdbool.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -70,7 +72,7 @@ typedef struct {
        int sdb_module_init(sdb_plugin_info_t *info)
 
 typedef struct {
-       _Bool do_loop;
+       bool do_loop;
        sdb_time_t default_interval;
 } sdb_plugin_loop_t;
 #define SDB_PLUGIN_LOOP_INIT { 1, 0 }
@@ -257,6 +259,22 @@ int
 sdb_plugin_register_ts_fetcher(const char *name,
                sdb_plugin_fetch_ts_cb callback, sdb_object_t *user_data);
 
+/*
+ * sdb_plugin_register_writer:
+ * Register a "writer" implementation to be used when adding an object to the
+ * store. It is invalid to register an incomplete writer which does not
+ * implement all of the writer interface.
+ *
+ * Arguments:
+ *  - user_data: If specified, this will be passed on to each call of the
+ *    callback. The function will take ownership of the object, that is,
+ *    increment the reference count by one. In case the caller does not longer
+ *    use the object for other purposes, it should thus deref it.
+ */
+int
+sdb_plugin_register_writer(const char *name,
+               sdb_store_writer_t *writer, sdb_object_t *user_data);
+
 /*
  * sdb_plugin_get_ctx, sdb_plugin_set_ctx:
  * The plugin context defines a set of settings that are available whenever a