#include <string.h>
#include <stdlib.h>
#include <glib.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/objects.h>
+
+#define BT_CTF_ATTR_NAME_INDEX 0
+#define BT_CTF_ATTR_VALUE_INDEX 1
static
const char * const reserved_keywords_str[] = {"align", "callsite",
free(string);
return ret;
}
+
+BT_HIDDEN
+struct bt_object *bt_ctf_attributes_create(void)
+{
+ /*
+ * Attributes: array object of array objects, each one
+ * containing two entries: a string object (attributes field
+ * name), and an object (attributes field value).
+ *
+ * Example (JSON representation):
+ *
+ * [
+ * ["hostname", "eeppdesk"],
+ * ["sysname", "Linux"],
+ * ["tracer_major", 2],
+ * ["tracer_minor", 5]
+ * ]
+ */
+ return bt_object_array_create();
+}
+
+BT_HIDDEN
+void bt_ctf_attributes_destroy(struct bt_object *attr_obj)
+{
+ bt_object_put(attr_obj);
+}
+
+BT_HIDDEN
+int bt_ctf_attributes_get_count(struct bt_object *attr_obj)
+{
+ return bt_object_array_size(attr_obj);
+}
+
+BT_HIDDEN
+const char *bt_ctf_attributes_get_field_name(struct bt_object *attr_obj,
+ int index)
+{
+ int rc;
+ const char *ret = NULL;
+ struct bt_object *attr_field_obj = NULL;
+ struct bt_object *attr_field_name_obj = NULL;
+
+ if (!attr_obj || index < 0) {
+ goto end;
+ }
+
+ attr_field_obj = bt_object_array_get(attr_obj, index);
+
+ if (!attr_field_obj) {
+ goto end;
+ }
+
+ attr_field_name_obj = bt_object_array_get(attr_field_obj,
+ BT_CTF_ATTR_NAME_INDEX);
+
+ if (!attr_field_name_obj) {
+ goto end;
+ }
+
+ rc = bt_object_string_get(attr_field_name_obj, &ret);
+
+ if (rc) {
+ ret = NULL;
+ }
+
+end:
+ BT_OBJECT_PUT(attr_field_name_obj);
+ BT_OBJECT_PUT(attr_field_obj);
+
+ return ret;
+}
+
+BT_HIDDEN
+struct bt_object *bt_ctf_attributes_get_field_value(struct bt_object *attr_obj,
+ int index)
+{
+ struct bt_object *value_obj = NULL;
+ struct bt_object *attr_field_obj = NULL;
+
+ if (!attr_obj || index < 0) {
+ goto end;
+ }
+
+ attr_field_obj = bt_object_array_get(attr_obj, index);
+
+ if (!attr_field_obj) {
+ goto end;
+ }
+
+ value_obj = bt_object_array_get(attr_field_obj,
+ BT_CTF_ATTR_VALUE_INDEX);
+
+end:
+ BT_OBJECT_PUT(attr_field_obj);
+
+ return value_obj;
+}
+
+static
+struct bt_object *bt_ctf_attributes_get_field_by_name(
+ struct bt_object *attr_obj, const char *name)
+{
+ int i;
+ int attr_size;
+ struct bt_object *value_obj = NULL;
+ struct bt_object *attr_field_name_obj = NULL;
+
+ attr_size = bt_object_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_object_array_get(attr_obj, i);
+
+ if (!value_obj) {
+ goto error;
+ }
+
+ attr_field_name_obj = bt_object_array_get(value_obj, 0);
+
+ if (!attr_field_name_obj) {
+ goto error;
+ }
+
+ ret = bt_object_string_get(attr_field_name_obj, &field_name);
+ if (ret) {
+ goto error;
+ }
+
+ if (!strcmp(field_name, name)) {
+ BT_OBJECT_PUT(attr_field_name_obj);
+ break;
+ }
+
+ BT_OBJECT_PUT(attr_field_name_obj);
+ BT_OBJECT_PUT(value_obj);
+ }
+
+ return value_obj;
+
+error:
+ BT_OBJECT_PUT(attr_field_name_obj);
+ BT_OBJECT_PUT(value_obj);
+
+ return value_obj;
+}
+
+BT_HIDDEN
+int bt_ctf_attributes_set_field_value(struct bt_object *attr_obj,
+ const char *name, struct bt_object *value_obj)
+{
+ int ret = 0;
+ struct bt_object *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_object_array_set(attr_field_obj,
+ BT_CTF_ATTR_VALUE_INDEX, value_obj);
+ goto end;
+ }
+
+ attr_field_obj = bt_object_array_create();
+
+ if (!attr_field_obj) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_object_array_append_string(attr_field_obj, name);
+ ret |= bt_object_array_append(attr_field_obj, value_obj);
+
+ if (ret) {
+ goto end;
+ }
+
+ ret = bt_object_array_append(attr_obj, attr_field_obj);
+
+end:
+ BT_OBJECT_PUT(attr_field_obj);
+
+ return ret;
+}
+
+BT_HIDDEN
+struct bt_object *bt_ctf_attributes_get_field_value_by_name(
+ struct bt_object *attr_obj, const char *name)
+{
+ struct bt_object *value_obj = NULL;
+ struct bt_object *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_object_array_get(attr_field_obj,
+ BT_CTF_ATTR_VALUE_INDEX);
+
+end:
+ BT_OBJECT_PUT(attr_field_obj);
+
+ return value_obj;
+}
+
+BT_HIDDEN
+int bt_ctf_attributes_freeze(struct bt_object *attr_obj)
+{
+ int i;
+ int count;
+ int ret = 0;
+
+ if (!attr_obj) {
+ ret = -1;
+ goto end;
+ }
+
+ count = bt_object_array_size(attr_obj);
+
+ if (count < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ /*
+ * We do not freeze the array 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_object *obj = NULL;
+
+ obj = bt_ctf_attributes_get_field_value(attr_obj, i);
+
+ if (!obj) {
+ ret = -1;
+ goto end;
+ }
+
+ bt_object_freeze(obj);
+ BT_OBJECT_PUT(obj);
+ }
+
+end:
+
+ return ret;
+}
projects / babeltrace.git / blobdiff