/*
- * 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
*/
#include <lttng/trigger/trigger-internal.h>
return trigger ? trigger->condition : NULL;
}
-extern struct lttng_action *lttng_trigger_get_action(
+LTTNG_HIDDEN
+const struct lttng_condition *lttng_trigger_get_const_condition(
+ const struct lttng_trigger *trigger)
+{
+ return trigger->condition;
+}
+
+struct lttng_action *lttng_trigger_get_action(
struct lttng_trigger *trigger)
{
return trigger ? trigger->action : NULL;
}
+LTTNG_HIDDEN
+const struct lttng_action *lttng_trigger_get_const_action(
+ const struct lttng_trigger *trigger)
+{
+ return trigger->action;
+}
+
void lttng_trigger_destroy(struct lttng_trigger *trigger)
{
if (!trigger) {
}
/*
- * Returns the size of a trigger (header + condition + action).
* Both elements are stored contiguously, see their "*_comm" structure
* for the detailed format.
*/
LTTNG_HIDDEN
-ssize_t lttng_trigger_serialize(struct lttng_trigger *trigger, char *buf)
+int lttng_trigger_serialize(struct lttng_trigger *trigger,
+ struct lttng_dynamic_buffer *buf)
{
+ int ret;
+ size_t header_offset, size_before_payload;
struct lttng_trigger_comm trigger_comm = { 0 };
- ssize_t action_size, condition_size, offset = 0, ret;
+ struct lttng_trigger_comm *header;
- if (!trigger) {
- ret = -1;
+ header_offset = buf->size;
+ ret = lttng_dynamic_buffer_append(buf, &trigger_comm,
+ sizeof(trigger_comm));
+ if (ret) {
goto end;
}
- offset += sizeof(trigger_comm);
- condition_size = lttng_condition_serialize(trigger->condition,
- buf ? (buf + offset) : NULL);
- if (condition_size < 0) {
- ret = -1;
+ size_before_payload = buf->size;
+ ret = lttng_condition_serialize(trigger->condition, buf);
+ if (ret) {
goto end;
}
- offset += condition_size;
- action_size = lttng_action_serialize(trigger->action,
- buf ? (buf + offset) : NULL);
- if (action_size < 0) {
- ret = -1;
+ ret = lttng_action_serialize(trigger->action, buf);
+ if (ret) {
goto end;
}
- offset += action_size;
- if (buf) {
- trigger_comm.length = (uint32_t) (condition_size + action_size);
- memcpy(buf, &trigger_comm, sizeof(trigger_comm));
- }
- ret = offset;
+ /* Update payload size. */
+ header = (struct lttng_trigger_comm *) ((char *) buf->data + header_offset);
+ header->length = buf->size - size_before_payload;
end:
return ret;
}