+
+struct bt_packet_header_field *bt_trace_create_packet_header_field(
+ struct bt_trace *trace)
+{
+ struct bt_field_wrapper *field_wrapper;
+
+ BT_ASSERT_PRE_NON_NULL(trace, "Trace");
+ BT_ASSERT_PRE(trace->common.packet_header_field_type,
+ "Trace has no packet header field type: %!+t",
+ trace);
+ field_wrapper = bt_field_wrapper_create(
+ &trace->packet_header_field_pool,
+ (void *) trace->common.packet_header_field_type);
+ if (!field_wrapper) {
+ BT_LIB_LOGE("Cannot allocate one packet header field from trace: "
+ "%![trace-]+t", trace);
+ goto error;
+ }
+
+ BT_ASSERT(field_wrapper->field);
+ bt_trace_common_freeze(BT_TO_COMMON(trace));
+ goto end;
+
+error:
+ if (field_wrapper) {
+ bt_field_wrapper_destroy(field_wrapper);
+ field_wrapper = NULL;
+ }
+
+end:
+ return (void *) field_wrapper;
+}