+++ /dev/null
-/*
- * attributes.c
- *
- * Babeltrace CTF IR - Attributes
- *
- * Copyright (c) 2015 EfficiOS Inc. and Linux Foundation
- * Copyright (c) 2015 Philippe Proulx <pproulx@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/values.h>
-
-#define BT_CTF_ATTR_NAME_INDEX 0
-#define BT_CTF_ATTR_VALUE_INDEX 1
-
-BT_HIDDEN
-struct bt_value *bt_ctf_attributes_create(void)
-{
- /*
- * Attributes: array value object of array value objects, each one
- * containing two entries: a string value object (attributes
- * field name), and a value object (attributes field value).
- *
- * Example (JSON representation):
- *
- * [
- * ["hostname", "eeppdesk"],
- * ["sysname", "Linux"],
- * ["tracer_major", 2],
- * ["tracer_minor", 5]
- * ]
- */
- return bt_value_array_create();
-}
-
-BT_HIDDEN
-void bt_ctf_attributes_destroy(struct bt_value *attr_obj)
-{
- bt_put(attr_obj);
-}
-
-BT_HIDDEN
-int bt_ctf_attributes_get_count(struct bt_value *attr_obj)
-{
- return bt_value_array_size(attr_obj);
-}
-
-BT_HIDDEN
-const char *bt_ctf_attributes_get_field_name(struct bt_value *attr_obj,
- int index)
-{
- int rc;
- const char *ret = NULL;
- struct bt_value *attr_field_obj = NULL;
- struct bt_value *attr_field_name_obj = NULL;
-
- if (!attr_obj || index < 0) {
- goto end;
- }
-
- attr_field_obj = bt_value_array_get(attr_obj, index);
-
- if (!attr_field_obj) {
- goto end;
- }
-
- attr_field_name_obj = bt_value_array_get(attr_field_obj,
- BT_CTF_ATTR_NAME_INDEX);
-
- if (!attr_field_name_obj) {
- goto end;
- }
-
- rc = bt_value_string_get(attr_field_name_obj, &ret);
-
- if (rc) {
- ret = NULL;
- }
-
-end:
- BT_PUT(attr_field_name_obj);
- BT_PUT(attr_field_obj);
- return ret;
-}
-
-BT_HIDDEN
-struct bt_value *bt_ctf_attributes_get_field_value(struct bt_value *attr_obj,
- int index)
-{
- struct bt_value *value_obj = NULL;
- struct bt_value *attr_field_obj = NULL;
-
- if (!attr_obj || index < 0) {
- goto end;
- }
-
- attr_field_obj = bt_value_array_get(attr_obj, index);
-
- if (!attr_field_obj) {
- goto end;
- }
-
- value_obj = bt_value_array_get(attr_field_obj,
- BT_CTF_ATTR_VALUE_INDEX);
-
-end:
- BT_PUT(attr_field_obj);
- return value_obj;
-}
-
-static
-struct bt_value *bt_ctf_attributes_get_field_by_name(
- struct bt_value *attr_obj, const char *name)
-{
- int i;
- int attr_size;
- struct bt_value *value_obj = NULL;
- struct bt_value *attr_field_name_obj = NULL;
-
- attr_size = bt_value_array_size(attr_obj);
-
- if (attr_size < 0) {
- goto error;
- }
-
- for (i = 0; i < attr_size; ++i) {
- int ret;
- const char *field_name;
-
- value_obj = bt_value_array_get(attr_obj, i);
-
- if (!value_obj) {
- goto error;
- }
-
- attr_field_name_obj = bt_value_array_get(value_obj, 0);
-
- if (!attr_field_name_obj) {
- goto error;
- }
-
- ret = bt_value_string_get(attr_field_name_obj, &field_name);
- if (ret) {
- goto error;
- }
-
- if (!strcmp(field_name, name)) {
- BT_PUT(attr_field_name_obj);
- break;
- }
-
- BT_PUT(attr_field_name_obj);
- BT_PUT(value_obj);
- }
-
- return value_obj;
-
-error:
- BT_PUT(attr_field_name_obj);
- BT_PUT(value_obj);
-
- return value_obj;
-}
-
-BT_HIDDEN
-int bt_ctf_attributes_set_field_value(struct bt_value *attr_obj,
- const char *name, struct bt_value *value_obj)
-{
- int ret = 0;
- struct bt_value *attr_field_obj = NULL;
-
- if (!attr_obj || !name || !value_obj) {
- ret = -1;
- goto end;
- }
-
- attr_field_obj = bt_ctf_attributes_get_field_by_name(attr_obj, name);
-
- if (attr_field_obj) {
- ret = bt_value_array_set(attr_field_obj,
- BT_CTF_ATTR_VALUE_INDEX, value_obj);
- goto end;
- }
-
- attr_field_obj = bt_value_array_create();
-
- if (!attr_field_obj) {
- ret = -1;
- goto end;
- }
-
- ret = bt_value_array_append_string(attr_field_obj, name);
- ret |= bt_value_array_append(attr_field_obj, value_obj);
-
- if (ret) {
- goto end;
- }
-
- ret = bt_value_array_append(attr_obj, attr_field_obj);
-
-end:
- BT_PUT(attr_field_obj);
-
- return ret;
-}
-
-BT_HIDDEN
-struct bt_value *bt_ctf_attributes_get_field_value_by_name(
- struct bt_value *attr_obj, const char *name)
-{
- struct bt_value *value_obj = NULL;
- struct bt_value *attr_field_obj = NULL;
-
- if (!attr_obj || !name) {
- goto end;
- }
-
- attr_field_obj = bt_ctf_attributes_get_field_by_name(attr_obj, name);
-
- if (!attr_field_obj) {
- goto end;
- }
-
- value_obj = bt_value_array_get(attr_field_obj,
- BT_CTF_ATTR_VALUE_INDEX);
-
-end:
- BT_PUT(attr_field_obj);
-
- return value_obj;
-}
-
-BT_HIDDEN
-int bt_ctf_attributes_freeze(struct bt_value *attr_obj)
-{
- int i;
- int count;
- int ret = 0;
-
- if (!attr_obj) {
- ret = -1;
- goto end;
- }
-
- count = bt_value_array_size(attr_obj);
-
- if (count < 0) {
- ret = -1;
- goto end;
- }
-
- /*
- * We do not freeze the array value object itself here, since
- * internal stuff could need to modify/add attributes. Each
- * attribute is frozen one by one.
- */
- for (i = 0; i < count; ++i) {
- struct bt_value *obj = NULL;
-
- obj = bt_ctf_attributes_get_field_value(attr_obj, i);
-
- if (!obj) {
- ret = -1;
- goto end;
- }
-
- bt_value_freeze(obj);
- BT_PUT(obj);
- }
-
-end:
- return ret;
-}
projects / babeltrace.git / blobdiff