SoW-2019-0002: Dynamic Snapshot
[lttng-tools.git] / include / lttng / action / action-internal.h
index 0c862a3a2c4831634c2eccb2fde971d15f227efd..af52a07ff52a74bd8128537733deeb8ef2db7495 100644 (file)
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef LTTNG_ACTION_INTERNAL_H
 #include <common/dynamic-buffer.h>
 #include <stdbool.h>
 #include <sys/types.h>
+#include <urcu/ref.h>
 
 typedef bool (*action_validate_cb)(struct lttng_action *action);
 typedef void (*action_destroy_cb)(struct lttng_action *action);
 typedef int (*action_serialize_cb)(struct lttng_action *action,
                struct lttng_dynamic_buffer *buf);
+typedef bool (*action_equal_cb)(const struct lttng_action *a,
+               const struct lttng_action *b);
+typedef ssize_t (*action_create_from_buffer_cb)(
+               const struct lttng_buffer_view *view,
+               struct lttng_action **action);
 
 struct lttng_action {
+       struct urcu_ref ref;
        enum lttng_action_type type;
        action_validate_cb validate;
        action_serialize_cb serialize;
+       action_equal_cb equal;
        action_destroy_cb destroy;
 };
 
@@ -42,6 +40,14 @@ struct lttng_action_comm {
        int8_t action_type;
 } LTTNG_PACKED;
 
+LTTNG_HIDDEN
+void lttng_action_init(struct lttng_action *action,
+               enum lttng_action_type type,
+               action_validate_cb validate,
+               action_serialize_cb serialize,
+               action_equal_cb equal,
+               action_destroy_cb destroy);
+
 LTTNG_HIDDEN
 bool lttng_action_validate(struct lttng_action *action);
 
@@ -53,4 +59,21 @@ LTTNG_HIDDEN
 ssize_t lttng_action_create_from_buffer(const struct lttng_buffer_view *view,
                struct lttng_action **action);
 
+LTTNG_HIDDEN
+enum lttng_action_type lttng_action_get_type_const(
+               const struct lttng_action *action);
+
+LTTNG_HIDDEN
+bool lttng_action_is_equal(const struct lttng_action *a,
+               const struct lttng_action *b);
+
+LTTNG_HIDDEN
+void lttng_action_get(struct lttng_action *action);
+
+LTTNG_HIDDEN
+void lttng_action_put(struct lttng_action *action);
+
+LTTNG_HIDDEN
+const char* lttng_action_type_string(enum lttng_action_type action_type);
+
 #endif /* LTTNG_ACTION_INTERNAL_H */
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