+++ /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/condition/condition-internal.h>
-#include <lttng/condition/buffer-usage-internal.h>
-#include <lttng/condition/session-consumed-size-internal.h>
-#include <common/macros.h>
-#include <common/error.h>
-#include <common/dynamic-buffer.h>
-#include <common/buffer-view.h>
-#include <stdbool.h>
-#include <assert.h>
-
-enum lttng_condition_type lttng_condition_get_type(
- const struct lttng_condition *condition)
-{
- return condition ? condition->type : LTTNG_CONDITION_TYPE_UNKNOWN;
-}
-
-void lttng_condition_destroy(struct lttng_condition *condition)
-{
- if (!condition) {
- return;
- }
-
- assert(condition->destroy);
- condition->destroy(condition);
-}
-
-LTTNG_HIDDEN
-bool lttng_condition_validate(const struct lttng_condition *condition)
-{
- bool valid;
-
- if (!condition) {
- valid = false;
- goto end;
- }
-
- if (!condition->validate) {
- /* Sub-class guarantees that it can never be invalid. */
- valid = true;
- goto end;
- }
-
- valid = condition->validate(condition);
-end:
- return valid;
-}
-
-LTTNG_HIDDEN
-ssize_t lttng_condition_serialize(const struct lttng_condition *condition,
- char *buf)
-{
- ssize_t ret, condition_size;
- struct lttng_condition_comm condition_comm = {
- .condition_type = (int8_t) (condition ?
- condition->type : LTTNG_CONDITION_TYPE_UNKNOWN)
- };
-
- if (!condition) {
- ret = -1;
- goto end;
- }
-
- ret = sizeof(struct lttng_condition_comm);
- if (buf) {
- memcpy(buf, &condition_comm, ret);
- buf += ret;
- }
-
- condition_size = condition->serialize(condition, buf);
- if (condition_size < 0) {
- ret = condition_size;
- goto end;
- }
- ret += condition_size;
-end:
- return ret;
-}
-
-LTTNG_HIDDEN
-bool lttng_condition_is_equal(const struct lttng_condition *a,
- const struct lttng_condition *b)
-{
- bool is_equal = false;
-
- if (!a || !b) {
- goto end;
- }
-
- if (a->type != b->type) {
- goto end;
- }
-
- is_equal = a->equal ? a->equal(a, b) : true;
-end:
- return is_equal;
-}
-
-LTTNG_HIDDEN
-ssize_t lttng_condition_create_from_buffer(
- const struct lttng_buffer_view *buffer,
- struct lttng_condition **condition)
-{
- ssize_t ret, condition_size = 0;
- const struct lttng_condition_comm *condition_comm;
- condition_create_from_buffer_cb create_from_buffer = NULL;
-
- if (!buffer || !condition) {
- ret = -1;
- goto end;
- }
-
- DBG("Deserializing condition from buffer");
- condition_comm = (const struct lttng_condition_comm *) buffer->data;
- condition_size += sizeof(*condition_comm);
-
- switch ((enum lttng_condition_type) condition_comm->condition_type) {
- case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
- create_from_buffer = lttng_condition_buffer_usage_low_create_from_buffer;
- break;
- case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
- create_from_buffer = lttng_condition_buffer_usage_high_create_from_buffer;
- break;
- case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE:
- create_from_buffer = lttng_condition_session_consumed_size_create_from_buffer;
- break;
- default:
- ERR("Attempted to create condition of unknown type (%i)",
- (int) condition_comm->condition_type);
- ret = -1;
- goto end;
- }
-
- if (create_from_buffer) {
- const struct lttng_buffer_view view =
- lttng_buffer_view_from_view(buffer,
- sizeof(*condition_comm), -1);
-
- ret = create_from_buffer(&view, condition);
- if (ret < 0) {
- goto end;
- }
- condition_size += ret;
-
- } else {
- abort();
- }
-
- ret = condition_size;
-end:
- return ret;
-}
-
-LTTNG_HIDDEN
-void lttng_condition_init(struct lttng_condition *condition,
- enum lttng_condition_type type)
-{
- condition->type = type;
-}