void bt_ctf_event_class_set_native_byte_order(
struct bt_ctf_event_class *event_class,
int byte_order)
{
if (!event_class) {
return;
}
assert(byte_order == 0 || byte_order == LITTLE_ENDIAN ||
byte_order == BIG_ENDIAN);
bt_ctf_field_type_set_native_byte_order(event_class->context,
byte_order);
bt_ctf_field_type_set_native_byte_order(event_class->fields,
byte_order);
}
int bt_ctf_trace_add_stream_class(struct bt_ctf_trace *trace,
struct bt_ctf_stream_class *stream_class)
{
int ret, i;
int64_t stream_id;
if (!trace || !stream_class) {
ret = -1;
goto end;
}
for (i = 0; i < trace->stream_classes->len; i++) {
if (trace->stream_classes->pdata[i] == stream_class) {
/* Stream already registered to the trace */
ret = -1;
goto end;
}
}
ret = bt_ctf_stream_class_resolve_types(stream_class, trace);
if (ret) {
goto end;
}
stream_id = bt_ctf_stream_class_get_id(stream_class);
if (stream_id < 0) {
stream_id = trace->next_stream_id++;
/* Try to assign a new stream id */
for (i = 0; i < trace->stream_classes->len; i++) {
if (stream_id == bt_ctf_stream_class_get_id(
trace->stream_classes->pdata[i])) {
/* Duplicate stream id found */
ret = -1;
goto end;
}
}
if (bt_ctf_stream_class_set_id_no_check(stream_class,
stream_id)) {
/* TODO Should retry with a different stream id */
ret = -1;
goto end;
}
}
/* Set weak reference to trace in stream class */
ret = bt_ctf_stream_class_set_trace(stream_class, trace);
if (ret) {
/* Stream class already part of another trace */
goto end;
}
bt_get(stream_class);
g_ptr_array_add(trace->stream_classes, stream_class);
/*
* Freeze the trace and its packet header.
*
* All field type byte orders set as "native" byte ordering can now be
* safely set to trace's own endianness, including the stream class'.
*/
bt_ctf_field_type_set_native_byte_order(trace->packet_header_type,
trace->byte_order);
ret = bt_ctf_stream_class_set_byte_order(stream_class,
trace->byte_order == LITTLE_ENDIAN ?
BT_CTF_BYTE_ORDER_LITTLE_ENDIAN : BT_CTF_BYTE_ORDER_BIG_ENDIAN);
if (ret) {
goto end;
}
bt_ctf_stream_class_freeze(stream_class);
if (!trace->frozen) {
ret = bt_ctf_trace_freeze(trace);
goto end;
}
end:
if (ret) {
(void) bt_ctf_stream_class_set_trace(stream_class, NULL);
}
return ret;
}
