+++ /dev/null
-/*
- * 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.
- *
- * 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>
-#include <lttng/condition/condition-internal.h>
-#include <lttng/action/action-internal.h>
-#include <common/error.h>
-#include <assert.h>
-
-LTTNG_HIDDEN
-bool lttng_trigger_validate(struct lttng_trigger *trigger)
-{
- bool valid;
-
- if (!trigger) {
- valid = false;
- goto end;
- }
-
- valid = lttng_condition_validate(trigger->condition) &&
- lttng_action_validate(trigger->action);
-end:
- return valid;
-}
-
-struct lttng_trigger *lttng_trigger_create(
- struct lttng_condition *condition,
- struct lttng_action *action)
-{
- struct lttng_trigger *trigger = NULL;
-
- if (!condition || !action) {
- goto end;
- }
-
- trigger = zmalloc(sizeof(struct lttng_trigger));
- if (!trigger) {
- goto end;
- }
-
- trigger->condition = condition;
- trigger->action = action;
-end:
- return trigger;
-}
-
-struct lttng_condition *lttng_trigger_get_condition(
- struct lttng_trigger *trigger)
-{
- return trigger ? trigger->condition : NULL;
-}
-
-struct lttng_action *lttng_trigger_get_action(
- struct lttng_trigger *trigger)
-{
- return trigger ? trigger->action : NULL;
-}
-
-void lttng_trigger_destroy(struct lttng_trigger *trigger)
-{
- if (!trigger) {
- return;
- }
-
- free(trigger);
-}
-
-LTTNG_HIDDEN
-ssize_t lttng_trigger_create_from_buffer(
- const struct lttng_buffer_view *src_view,
- struct lttng_trigger **trigger)
-{
- ssize_t ret, offset = 0, condition_size, action_size;
- struct lttng_condition *condition = NULL;
- struct lttng_action *action = NULL;
- const struct lttng_trigger_comm *trigger_comm;
- struct lttng_buffer_view condition_view;
- struct lttng_buffer_view action_view;
-
- if (!src_view || !trigger) {
- ret = -1;
- goto end;
- }
-
- /* lttng_trigger_comm header */
- trigger_comm = (const struct lttng_trigger_comm *) src_view->data;
- offset += sizeof(*trigger_comm);
-
- condition_view = lttng_buffer_view_from_view(src_view, offset, -1);
-
- /* struct lttng_condition */
- condition_size = lttng_condition_create_from_buffer(&condition_view,
- &condition);
- if (condition_size < 0) {
- ret = condition_size;
- goto end;
- }
- offset += condition_size;
-
- /* struct lttng_action */
- action_view = lttng_buffer_view_from_view(src_view, offset, -1);
- action_size = lttng_action_create_from_buffer(&action_view, &action);
- if (action_size < 0) {
- ret = action_size;
- goto end;
- }
- offset += action_size;
-
- /* Unexpected size of inner-elements; the buffer is corrupted. */
- if ((ssize_t) trigger_comm->length != condition_size + action_size) {
- ret = -1;
- goto error;
- }
-
- *trigger = lttng_trigger_create(condition, action);
- if (!*trigger) {
- ret = -1;
- goto error;
- }
- ret = offset;
-end:
- return ret;
-error:
- lttng_condition_destroy(condition);
- lttng_action_destroy(action);
- return ret;
-}
-
-/*
- * 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)
-{
- struct lttng_trigger_comm trigger_comm = { 0 };
- ssize_t action_size, condition_size, offset = 0, ret;
-
- if (!trigger) {
- ret = -1;
- goto end;
- }
-
- offset += sizeof(trigger_comm);
- condition_size = lttng_condition_serialize(trigger->condition,
- buf ? (buf + offset) : NULL);
- if (condition_size < 0) {
- ret = -1;
- goto end;
- }
- offset += condition_size;
-
- action_size = lttng_action_serialize(trigger->action,
- buf ? (buf + offset) : NULL);
- if (action_size < 0) {
- ret = -1;
- 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;
-end:
- return ret;
-}