- /*
- * Orphan the event; we were not successful in associating it to
- * a stream.
- */
- bt_object_set_parent(event, NULL);
-
- return ret;
-}
-
-struct bt_ctf_field *bt_ctf_stream_get_packet_context(
- struct bt_ctf_stream *stream)
-{
- struct bt_ctf_field *packet_context = NULL;
-
- if (!stream || stream->pos.fd < 0) {
- goto end;
- }
-
- packet_context = stream->packet_context;
- if (packet_context) {
- bt_get(packet_context);
- }
-end:
- return packet_context;
-}
-
-int bt_ctf_stream_set_packet_context(struct bt_ctf_stream *stream,
- struct bt_ctf_field *field)
-{
- int ret = 0;
- struct bt_ctf_field_type *field_type;
-
- if (!stream || stream->pos.fd < 0) {
- ret = -1;
- goto end;
- }
-
- field_type = bt_ctf_field_get_type(field);
- if (bt_ctf_field_type_compare(field_type,
- stream->stream_class->packet_context_type)) {
- ret = -1;
- goto end;
- }
-
- bt_put(field_type);
- bt_put(stream->packet_context);
- stream->packet_context = bt_get(field);
-end:
- return ret;
-}
-
-struct bt_ctf_field *bt_ctf_stream_get_packet_header(
- struct bt_ctf_stream *stream)
-{
- struct bt_ctf_field *packet_header = NULL;
-
- if (!stream || stream->pos.fd < 0) {
- goto end;
- }
-
- packet_header = stream->packet_header;
- if (packet_header) {
- bt_get(packet_header);
- }
-end:
- return packet_header;
-}
-
-int bt_ctf_stream_set_packet_header(struct bt_ctf_stream *stream,
- struct bt_ctf_field *field)
-{
- int ret = 0;
- struct bt_ctf_trace *trace = NULL;
- struct bt_ctf_field_type *field_type = NULL;
-
- if (!stream || stream->pos.fd < 0) {
- ret = -1;
- goto end;
- }
-
- trace = (struct bt_ctf_trace *) bt_object_get_parent(stream);
- field_type = bt_ctf_field_get_type(field);
- if (bt_ctf_field_type_compare(field_type, trace->packet_header_type)) {
- ret = -1;
- goto end;
- }
-
- bt_put(stream->packet_header);
- stream->packet_header = bt_get(field);
-end:
- BT_PUT(trace);
- bt_put(field_type);
- return ret;
-}
-
-static
-int get_event_header_timestamp(struct bt_ctf_field *event_header, uint64_t *timestamp)
-{
- int ret = 0;
- struct bt_ctf_field *timestamp_field = NULL;
- struct bt_ctf_field_type *timestamp_field_type = NULL;
-
- timestamp_field = bt_ctf_field_structure_get_field(event_header,
- "timestamp");
- if (!timestamp_field) {
- ret = -1;
- goto end;
- }
-
- timestamp_field_type = bt_ctf_field_get_type(timestamp_field);
- assert(timestamp_field_type);
- if (bt_ctf_field_type_get_type_id(timestamp_field_type) !=
- BT_CTF_FIELD_TYPE_ID_INTEGER) {
- ret = -1;
- goto end;
- }
-
- if (bt_ctf_field_type_integer_get_signed(timestamp_field_type)) {
- int64_t val;
-
- ret = bt_ctf_field_signed_integer_get_value(timestamp_field,
- &val);
- if (ret) {
- goto end;
- }
- *timestamp = (uint64_t) val;
- } else {
- ret = bt_ctf_field_unsigned_integer_get_value(timestamp_field,
- timestamp);
- if (ret) {
- goto end;
- }
- }
-end:
- bt_put(timestamp_field);
- bt_put(timestamp_field_type);
- return ret;
-}
-
-static
-void reset_structure_field(struct bt_ctf_field *structure, const char *name)
-{
- struct bt_ctf_field *member;
-
- member = bt_ctf_field_structure_get_field(structure, name);
- assert(member);
- (void) bt_ctf_field_reset(member);
- bt_put(member);
-}
-
-int bt_ctf_stream_flush(struct bt_ctf_stream *stream)
-{
- int ret = 0;
- size_t i;
- uint64_t timestamp_begin, timestamp_end;
- struct bt_ctf_field *integer = NULL;
- struct bt_ctf_stream_pos packet_context_pos;
- struct bt_ctf_trace *trace;
- enum bt_ctf_byte_order native_byte_order;
- bool empty_packet;
- uint64_t packet_size_bits;
- struct {
- bool timestamp_begin;
- bool timestamp_end;
- bool content_size;
- bool packet_size;
- } auto_set_fields = { 0 };
-
- if (!stream || stream->pos.fd < 0) {
- /*
- * Stream does not have an associated fd. It is,
- * therefore, not a stream being used to write events.
- */
- ret = -1;
- goto end;
- }
-
- if (!stream->packet_context && stream->flushed_packet_count > 0) {
- /*
- * A stream without a packet context, and thus without
- * content and packet size members, can't have more than
- * one packet.
- */
- ret = -1;
- goto end;
- }
-
- trace = bt_ctf_stream_class_borrow_trace(stream->stream_class);
- assert(trace);
- native_byte_order = bt_ctf_trace_get_byte_order(trace);
- empty_packet = (stream->events->len == 0);
-
- /* mmap the next packet */
- bt_ctf_stream_pos_packet_seek(&stream->pos, 0, SEEK_CUR);
- ret = bt_ctf_field_serialize(stream->packet_header, &stream->pos,
- native_byte_order);
- if (ret) {
- goto end;
- }
-
- if (stream->packet_context) {
- /* Set the default context attributes if present and unset. */
- if (!empty_packet && !get_event_header_timestamp(
- ((struct bt_ctf_event *) g_ptr_array_index(
- stream->events, 0))->event_header, ×tamp_begin)) {
- ret = try_set_structure_field_integer(
- stream->packet_context,
- "timestamp_begin", timestamp_begin);
- if (ret < 0) {
- goto end;
- }
- auto_set_fields.timestamp_begin = ret == 1;
- }
-
- if (!empty_packet && !get_event_header_timestamp(
- ((struct bt_ctf_event *) g_ptr_array_index(
- stream->events, stream->events->len - 1))->event_header,
- ×tamp_end)) {
-
- ret = try_set_structure_field_integer(
- stream->packet_context,
- "timestamp_end", timestamp_end);
- if (ret < 0) {
- goto end;
- }
- auto_set_fields.timestamp_end = ret == 1;
- }
- ret = try_set_structure_field_integer(stream->packet_context,
- "content_size", UINT64_MAX);
- if (ret < 0) {
- goto end;
- }
- auto_set_fields.content_size = ret == 1;
-
- ret = try_set_structure_field_integer(stream->packet_context,
- "packet_size", UINT64_MAX);
- if (ret < 0) {
- goto end;
- }
- auto_set_fields.packet_size = ret == 1;
-
- /* Write packet context */
- memcpy(&packet_context_pos, &stream->pos,
- sizeof(packet_context_pos));
- ret = bt_ctf_field_serialize(stream->packet_context,
- &stream->pos, native_byte_order);
- if (ret) {
- goto end;
- }
- }
-
- for (i = 0; i < stream->events->len; i++) {
- struct bt_ctf_event *event = g_ptr_array_index(
- stream->events, i);
-
- /* Write event header */
- ret = bt_ctf_field_serialize(event->event_header,
- &stream->pos, native_byte_order);
- if (ret) {
- goto end;
- }
-
- /* Write stream event context */
- if (event->stream_event_context) {
- ret = bt_ctf_field_serialize(
- event->stream_event_context, &stream->pos,
- native_byte_order);
- if (ret) {
- goto end;
- }
- }
-
- /* Write event content */
- ret = bt_ctf_event_serialize(event, &stream->pos,
- native_byte_order);
- if (ret) {
- goto end;
- }
- }
-
- /* Rounded-up in case content_size is not byte-aligned. */
- packet_size_bits = (stream->pos.offset + (CHAR_BIT - 1)) &
- ~(CHAR_BIT - 1);
- stream->pos.packet_size = packet_size_bits;
-
- if (stream->packet_context) {
- /*
- * Update the packet total size and content size and overwrite
- * the packet context.
- * Copy base_mma as the packet may have been remapped (e.g. when
- * a packet is resized).
- */
- packet_context_pos.base_mma = stream->pos.base_mma;
- if (auto_set_fields.content_size) {
- ret = set_structure_field_integer(
- stream->packet_context,
- "content_size", stream->pos.offset);
- if (ret < 0) {
- goto end;
- }
- }
-
- if (auto_set_fields.packet_size) {
- ret = set_structure_field_integer(stream->packet_context,
- "packet_size", packet_size_bits);
- if (ret < 0) {
- goto end;
- }
- }
-
- ret = bt_ctf_field_serialize(stream->packet_context,
- &packet_context_pos, native_byte_order);
- if (ret) {
- goto end;
- }
- }