+++ /dev/null
-/*
- * attributes.c
- *
- * Babeltrace CTF writer - 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.
- */
-
-#define BT_LOG_TAG "CTF-WRITER-ATTRS"
-#include <babeltrace2/lib-logging-internal.h>
-
-#include <babeltrace2/assert-internal.h>
-#include <babeltrace2/babeltrace-internal.h>
-#include <babeltrace2/compat/string-internal.h>
-#include <babeltrace2/ctf-writer/object.h>
-#include <babeltrace2/ctf-writer/values-internal.h>
-#include <babeltrace2/ctf-writer/values-internal.h>
-#include <babeltrace2/ctf-writer/values-internal.h>
-#include <inttypes.h>
-
-#define BT_CTF_ATTR_NAME_INDEX 0
-#define BT_CTF_ATTR_VALUE_INDEX 1
-
-BT_HIDDEN
-struct bt_ctf_private_value *bt_ctf_attributes_create(void)
-{
- struct bt_ctf_private_value *attr_obj;
-
- /*
- * 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]
- * ]
- */
- BT_LOGD_STR("Creating attributes object.");
- attr_obj = bt_ctf_private_value_array_create();
- if (!attr_obj) {
- BT_LOGE_STR("Failed to create array value.");
- } else {
- BT_LOGD("Created attributes object: addr=%p",
- attr_obj);
- }
-
- return attr_obj;
-}
-
-BT_HIDDEN
-void bt_ctf_attributes_destroy(struct bt_ctf_private_value *attr_obj)
-{
- BT_LOGD("Destroying attributes object: addr=%p", attr_obj);
- bt_ctf_object_put_ref(attr_obj);
-}
-
-BT_HIDDEN
-int64_t bt_ctf_attributes_get_count(struct bt_ctf_private_value *attr_obj)
-{
- return bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj));
-}
-
-BT_HIDDEN
-const char *bt_ctf_attributes_get_field_name(struct bt_ctf_private_value *attr_obj,
- uint64_t index)
-{
- const char *ret = NULL;
- struct bt_ctf_private_value *attr_field_obj = NULL;
- struct bt_ctf_private_value *attr_field_name_obj = NULL;
-
- if (!attr_obj) {
- BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
- goto end;
- }
-
- if (index >= bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj))) {
- BT_LOGW("Invalid parameter: index is out of bounds: "
- "index=%" PRIu64 ", count=%" PRId64,
- index, bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj)));
- goto end;
- }
-
- attr_field_obj = bt_ctf_private_value_array_borrow_element_by_index(
- attr_obj, index);
- if (!attr_field_obj) {
- BT_LOGE("Cannot get attributes object's array value's element by index: "
- "value-addr=%p, index=%" PRIu64, attr_obj, index);
- goto end;
- }
-
- attr_field_name_obj =
- bt_ctf_private_value_array_borrow_element_by_index(
- attr_field_obj, BT_CTF_ATTR_NAME_INDEX);
- if (!attr_field_name_obj) {
- BT_LOGE("Cannot get attribute array value's element by index: "
- "value-addr=%p, index=%" PRIu64, attr_field_obj,
- (uint64_t) BT_CTF_ATTR_NAME_INDEX);
- goto end;
- }
-
- ret = bt_ctf_value_string_get(
- bt_ctf_private_value_as_value(attr_field_name_obj));
-
-end:
- return ret;
-}
-
-BT_HIDDEN
-struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_value(struct bt_ctf_private_value *attr_obj,
- uint64_t index)
-{
- struct bt_ctf_private_value *value_obj = NULL;
- struct bt_ctf_private_value *attr_field_obj = NULL;
-
- if (!attr_obj) {
- BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
- goto end;
- }
-
- if (index >= bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj))) {
- BT_LOGW("Invalid parameter: index is out of bounds: "
- "index=%" PRIu64 ", count=%" PRId64,
- index, bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj)));
- goto end;
- }
-
- attr_field_obj = bt_ctf_private_value_array_borrow_element_by_index(
- attr_obj, index);
- if (!attr_field_obj) {
- BT_LOGE("Cannot get attributes object's array value's element by index: "
- "value-addr=%p, index=%" PRIu64, attr_obj, index);
- goto end;
- }
-
- value_obj = bt_ctf_private_value_array_borrow_element_by_index(attr_field_obj,
- BT_CTF_ATTR_VALUE_INDEX);
- if (!value_obj) {
- BT_LOGE("Cannot get attribute array value's element by index: "
- "value-addr=%p, index=%" PRIu64, attr_field_obj,
- (uint64_t) BT_CTF_ATTR_VALUE_INDEX);
- }
-
-end:
- return value_obj;
-}
-
-static
-struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_by_name(
- struct bt_ctf_private_value *attr_obj, const char *name)
-{
- uint64_t i;
- int64_t attr_size;
- struct bt_ctf_private_value *value_obj = NULL;
- struct bt_ctf_private_value *attr_field_name_obj = NULL;
-
- attr_size = bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj));
- if (attr_size < 0) {
- BT_LOGE("Cannot get array value's size: value-addr=%p",
- attr_obj);
- goto error;
- }
-
- for (i = 0; i < attr_size; ++i) {
- const char *field_name;
-
- value_obj = bt_ctf_private_value_array_borrow_element_by_index(attr_obj, i);
- if (!value_obj) {
- BT_LOGE("Cannot get attributes object's array value's element by index: "
- "value-addr=%p, index=%" PRIu64, attr_obj, i);
- goto error;
- }
-
- attr_field_name_obj = bt_ctf_private_value_array_borrow_element_by_index(value_obj,
- BT_CTF_ATTR_NAME_INDEX);
- if (!attr_field_name_obj) {
- BT_LOGE("Cannot get attribute array value's element by index: "
- "value-addr=%p, index=%" PRIu64,
- value_obj, (int64_t) BT_CTF_ATTR_NAME_INDEX);
- goto error;
- }
-
- field_name = bt_ctf_value_string_get(
- bt_ctf_private_value_as_value(attr_field_name_obj));
-
- if (!strcmp(field_name, name)) {
- break;
- }
-
- value_obj = NULL;
- }
-
- return value_obj;
-
-error:
- value_obj = NULL;
- return value_obj;
-}
-
-BT_HIDDEN
-int bt_ctf_attributes_set_field_value(struct bt_ctf_private_value *attr_obj,
- const char *name, struct bt_ctf_private_value *value_obj)
-{
- int ret = 0;
- struct bt_ctf_private_value *attr_field_obj = NULL;
-
- if (!attr_obj || !name || !value_obj) {
- BT_LOGW("Invalid parameter: attributes object, name, or value object is NULL: "
- "attr-value-addr=%p, name-addr=%p, value-addr=%p",
- attr_obj, name, value_obj);
- ret = -1;
- goto end;
- }
-
- attr_field_obj = bt_ctf_attributes_borrow_field_by_name(attr_obj, name);
- if (attr_field_obj) {
- ret = bt_ctf_private_value_array_set_element_by_index(
- attr_field_obj, BT_CTF_ATTR_VALUE_INDEX,
- bt_ctf_private_value_as_value(value_obj));
- attr_field_obj = NULL;
- goto end;
- }
-
- attr_field_obj = bt_ctf_private_value_array_create();
- if (!attr_field_obj) {
- BT_LOGE_STR("Failed to create empty array value.");
- ret = -1;
- goto end;
- }
-
- ret = bt_ctf_private_value_array_append_string_element(attr_field_obj, name);
- ret |= bt_ctf_private_value_array_append_element(attr_field_obj,
- bt_ctf_private_value_as_value(value_obj));
- if (ret) {
- BT_LOGE("Cannot append elements to array value: addr=%p",
- attr_field_obj);
- goto end;
- }
-
- ret = bt_ctf_private_value_array_append_element(attr_obj,
- bt_ctf_private_value_as_value(attr_field_obj));
- if (ret) {
- BT_LOGE("Cannot append element to array value: "
- "array-value-addr=%p, element-value-addr=%p",
- attr_obj, attr_field_obj);
- }
-
-end:
- bt_ctf_object_put_ref(attr_field_obj);
- return ret;
-}
-
-BT_HIDDEN
-struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_value_by_name(
- struct bt_ctf_private_value *attr_obj, const char *name)
-{
- struct bt_ctf_private_value *value_obj = NULL;
- struct bt_ctf_private_value *attr_field_obj = NULL;
-
- if (!attr_obj || !name) {
- BT_LOGW("Invalid parameter: attributes object or name is NULL: "
- "value-addr=%p, name-addr=%p", attr_obj, name);
- goto end;
- }
-
- attr_field_obj = bt_ctf_attributes_borrow_field_by_name(attr_obj, name);
- if (!attr_field_obj) {
- BT_LOGD("Cannot find attributes object's field by name: "
- "value-addr=%p, name=\"%s\"", attr_obj, name);
- goto end;
- }
-
- value_obj = bt_ctf_private_value_array_borrow_element_by_index(attr_field_obj,
- BT_CTF_ATTR_VALUE_INDEX);
- if (!value_obj) {
- BT_LOGE("Cannot get attribute array value's element by index: "
- "value-addr=%p, index=%" PRIu64, attr_field_obj,
- (uint64_t) BT_CTF_ATTR_VALUE_INDEX);
- }
-
-end:
- return value_obj;
-}
-
-BT_HIDDEN
-int bt_ctf_attributes_freeze(struct bt_ctf_private_value *attr_obj)
-{
- uint64_t i;
- int64_t count;
- int ret = 0;
-
- if (!attr_obj) {
- BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
- ret = -1;
- goto end;
- }
-
- BT_LOGD("Freezing attributes object: value-addr=%p", attr_obj);
- count = bt_ctf_value_array_get_size(bt_ctf_private_value_as_value(attr_obj));
- BT_ASSERT(count >= 0);
-
- /*
- * 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_ctf_private_value *obj = NULL;
-
- obj = bt_ctf_attributes_borrow_field_value(attr_obj, i);
- if (!obj) {
- BT_LOGE("Cannot get attributes object's field value by index: "
- "value-addr=%p, index=%" PRIu64,
- attr_obj, i);
- ret = -1;
- goto end;
- }
-
- bt_ctf_value_freeze(bt_ctf_private_value_as_value(obj));
- }
-
-end:
- return ret;
-}
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