}
static
-int get_event_header_timestamp(struct bt_stream *stream,
- struct bt_field *event_header, uint64_t *timestamp)
+void update_clock_value(uint64_t *val, uint64_t new_val,
+ unsigned int new_val_size)
{
- int ret = 0;
- struct bt_field *timestamp_field = NULL;
- struct bt_clock_class *ts_field_mapped_clock_class = NULL;
+ const uint64_t pow2 = 1ULL << new_val_size;
+ const uint64_t mask = pow2 - 1;
+ uint64_t val_masked;
- *timestamp = 0;
+#ifdef BT_LOG_ENABLED_VERBOSE
+ uint64_t old_val = *val;
+#endif
- if (!event_header) {
- BT_LOGV_STR("Event header does not exist.");
+ if (new_val_size == 64) {
+ *val = new_val;
goto end;
}
- timestamp_field = bt_field_structure_get_field_by_name(event_header,
- "timestamp");
- if (!timestamp_field) {
- BT_LOGV("Cannot get event header's `timestamp` field: "
- "event-header-field-addr=%p", event_header);
- goto end;
+ val_masked = *val & mask;
+
+ if (new_val < val_masked) {
+ /* Wrapped once */
+ new_val |= pow2;
}
- if (!bt_field_type_is_integer(timestamp_field->type)) {
- BT_LOGV("Event header's `timestamp` field's type is not an integer field type: "
- "event-header-field-addr=%p", event_header);
+ *val &= ~mask;
+ *val |= new_val;
+
+end:
+ BT_LOGV("Updated clock value: old-val=%" PRIu64 ", new-val=%" PRIu64,
+ old_val, *val);
+ return;
+}
+
+static
+int visit_field_update_clock_value(struct bt_field *field, uint64_t *val)
+{
+ int ret = 0;
+
+ if (!field) {
goto end;
}
- ts_field_mapped_clock_class =
- bt_field_type_integer_get_mapped_clock_class(
- timestamp_field->type);
- if (!ts_field_mapped_clock_class) {
- BT_LOGV("Event header's `timestamp` field's type is not mapped to a clock class: "
- "event-header-field-addr=%p", event_header);
- goto end;
+ switch (bt_field_get_type_id(field)) {
+ case BT_FIELD_TYPE_ID_INTEGER:
+ {
+ struct bt_clock_class *cc =
+ bt_field_type_integer_get_mapped_clock_class(
+ field->type);
+ int val_size;
+ uint64_t uval;
+
+ if (!cc) {
+ goto end;
+ }
+
+ bt_put(cc);
+ val_size = bt_field_type_integer_get_size(field->type);
+ assert(val_size >= 1);
+
+ if (bt_field_type_integer_is_signed(field->type)) {
+ int64_t ival;
+
+ ret = bt_field_signed_integer_get_value(field, &ival);
+ uval = (uint64_t) ival;
+ } else {
+ ret = bt_field_unsigned_integer_get_value(field, &uval);
+ }
+
+ if (ret) {
+ /* Not set */
+ goto end;
+ }
+
+ update_clock_value(val, uval, val_size);
+ break;
}
+ case BT_FIELD_TYPE_ID_ENUM:
+ {
+ struct bt_field *int_field =
+ bt_field_enumeration_get_container(field);
- if (ts_field_mapped_clock_class !=
- stream->stream_class->clock->clock_class) {
- BT_LOGV("Event header's `timestamp` field's type is not mapped to the stream's clock's class: "
- "event-header-field-addr=%p", event_header);
- goto end;
+ assert(int_field);
+ ret = visit_field_update_clock_value(int_field, val);
+ bt_put(int_field);
+ break;
}
+ case BT_FIELD_TYPE_ID_ARRAY:
+ {
+ uint64_t i;
+ int64_t len = bt_field_type_array_get_length(field->type);
- ret = bt_field_unsigned_integer_get_value(timestamp_field,
- timestamp);
- if (ret) {
- BT_LOGW("Cannot get unsigned integer field's value: "
- "event-header-field-addr=%p, "
- "timestamp-field-addr=%p",
- event_header, timestamp_field);
- goto end;
+ assert(len >= 0);
+
+ for (i = 0; i < len; i++) {
+ struct bt_field *elem_field =
+ bt_field_array_get_field(field, i);
+
+ assert(elem_field);
+ ret = visit_field_update_clock_value(elem_field, val);
+ bt_put(elem_field);
+ if (ret) {
+ goto end;
+ }
+ }
+ break;
+ }
+ case BT_FIELD_TYPE_ID_SEQUENCE:
+ {
+ uint64_t i;
+ int64_t len = bt_field_sequence_get_int_length(field);
+
+ if (len < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ for (i = 0; i < len; i++) {
+ struct bt_field *elem_field =
+ bt_field_sequence_get_field(field, i);
+
+ assert(elem_field);
+ ret = visit_field_update_clock_value(elem_field, val);
+ bt_put(elem_field);
+ if (ret) {
+ goto end;
+ }
+ }
+ break;
+ }
+ case BT_FIELD_TYPE_ID_STRUCT:
+ {
+ uint64_t i;
+ int64_t len = bt_field_type_structure_get_field_count(
+ field->type);
+
+ assert(len >= 0);
+
+ for (i = 0; i < len; i++) {
+ struct bt_field *member_field =
+ bt_field_structure_get_field_by_index(field, i);
+
+ assert(member_field);
+ ret = visit_field_update_clock_value(member_field, val);
+ bt_put(member_field);
+ if (ret) {
+ goto end;
+ }
+ }
+ break;
+ }
+ case BT_FIELD_TYPE_ID_VARIANT:
+ {
+ struct bt_field *cur_field =
+ bt_field_variant_get_current_field(field);
+
+ if (!cur_field) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = visit_field_update_clock_value(cur_field, val);
+ bt_put(cur_field);
+ break;
+ }
+ default:
+ break;
}
end:
- bt_put(timestamp_field);
- bt_put(ts_field_mapped_clock_class);
return ret;
}
-static
-int set_packet_context_timestamp_field(struct bt_stream *stream,
- const char *field_name, struct bt_event *event)
+int visit_event_update_clock_value(struct bt_event *event, uint64_t *val)
{
int ret = 0;
- struct bt_field *field = bt_field_structure_get_field_by_name(
- stream->packet_context, field_name);
- struct bt_clock_class *field_mapped_clock_class = NULL;
- uint64_t ts;
-
- assert(stream);
-
- if (!field) {
- /* No beginning timestamp field found. Not an error, skip. */
- BT_LOGV("No field named `%s` in packet context: skipping: "
- "stream-addr=%p, stream-name=\"%s\"", field_name,
- stream, bt_stream_get_name(stream));
- goto end;
- }
+ struct bt_field *field;
- if (!stream->stream_class->clock) {
- BT_LOGV("Stream has no clock: skipping: "
- "stream-addr=%p, stream-name=\"%s\"",
- stream, bt_stream_get_name(stream));
+ field = bt_event_get_header(event);
+ ret = visit_field_update_clock_value(field, val);
+ bt_put(field);
+ if (ret) {
+ BT_LOGW_STR("Cannot automatically update clock value in "
+ "event's header.");
goto end;
}
- field_mapped_clock_class =
- bt_field_type_integer_get_mapped_clock_class(field->type);
- if (field_mapped_clock_class && field_mapped_clock_class !=
- stream->stream_class->clock->clock_class) {
- BT_LOGV("Packet context's `%s` field's type is not mapped to the stream's clock's class: skipping: "
- "stream-addr=%p, stream-name=\"%s\", "
- "field-addr=%p, ft-addr=%p, "
- "ft-mapped-clock-class-addr=%p, "
- "ft-mapped-clock-class-name=\"%s\", "
- "stream-clock-class-addr=%p, "
- "stream-clock-class-name=\"%s\"",
- field_name,
- stream, bt_stream_get_name(stream),
- field, field->type,
- field_mapped_clock_class,
- bt_clock_class_get_name(field_mapped_clock_class),
- stream->stream_class->clock->clock_class,
- bt_clock_class_get_name(
- stream->stream_class->clock->clock_class));
+ field = bt_event_get_stream_event_context(event);
+ ret = visit_field_update_clock_value(field, val);
+ bt_put(field);
+ if (ret) {
+ BT_LOGW_STR("Cannot automatically update clock value in "
+ "event's stream event context.");
goto end;
}
- if (get_event_header_timestamp(stream, event->event_header, &ts)) {
- BT_LOGW("Cannot get event's timestamp: "
- "event-header-field-addr=%p",
- event->event_header);
- ret = -1;
+ field = bt_event_get_event_context(event);
+ ret = visit_field_update_clock_value(field, val);
+ bt_put(field);
+ if (ret) {
+ BT_LOGW_STR("Cannot automatically update clock value in "
+ "event's context.");
goto end;
}
- ret = bt_field_unsigned_integer_set_value(field, ts);
+ field = bt_event_get_event_payload(event);
+ ret = visit_field_update_clock_value(field, val);
+ bt_put(field);
if (ret) {
- BT_LOGW("Cannot set packet context field's `%s` integer field's value: "
- "stream-addr=%p, stream-name=\"%s\", field-addr=%p, value=%" PRIu64,
- field_name, stream, bt_stream_get_name(stream),
- field, stream->discarded_events);
- } else {
- BT_LOGV("Set packet context field's `%s` field's value: "
- "stream-addr=%p, stream-name=\"%s\", field-addr=%p, value=%" PRIu64,
- field_name, stream, bt_stream_get_name(stream),
- field, stream->discarded_events);
+ BT_LOGW_STR("Cannot automatically update clock value in "
+ "event's payload.");
+ goto end;
}
end:
- bt_put(field);
- bt_put(field_mapped_clock_class);
return ret;
}
static
-int set_packet_context_timestamp_begin(struct bt_stream *stream)
+int set_packet_context_timestamps(struct bt_stream *stream)
{
int ret = 0;
-
- if (stream->events->len == 0) {
- BT_LOGV("Current packet contains no events: skipping: "
- "stream-addr=%p, stream-name=\"%s\"",
- stream, bt_stream_get_name(stream));
+ uint64_t val;
+ uint64_t cur_clock_value;
+ uint64_t init_clock_value = 0;
+ struct bt_field *ts_begin_field = bt_field_structure_get_field_by_name(
+ stream->packet_context, "timestamp_begin");
+ struct bt_field *ts_end_field = bt_field_structure_get_field_by_name(
+ stream->packet_context, "timestamp_end");
+ uint64_t i;
+ int64_t len;
+
+ if (ts_begin_field && bt_field_is_set(ts_begin_field)) {
+ /* Use provided `timestamp_begin` value as starting value */
+ ret = bt_field_unsigned_integer_get_value(ts_begin_field, &val);
+ assert(ret == 0);
+ init_clock_value = val;
+ } else if (stream->last_ts_end != -1ULL) {
+ /* Use last packet's ending timestamp as starting value */
+ init_clock_value = stream->last_ts_end;
+ }
+
+ cur_clock_value = init_clock_value;
+
+ if (stream->last_ts_end != -1ULL &&
+ cur_clock_value < stream->last_ts_end) {
+ BT_LOGW("Packet's initial timestamp is less than previous "
+ "packet's final timestamp: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "cur-packet-ts-begin=%" PRIu64 ", "
+ "prev-packet-ts-end=%" PRIu64,
+ stream, bt_stream_get_name(stream),
+ cur_clock_value, stream->last_ts_end);
+ ret = -1;
goto end;
}
- ret = set_packet_context_timestamp_field(stream, "timestamp_begin",
- g_ptr_array_index(stream->events, 0));
+ /*
+ * Visit all the packet context fields, followed by all the
+ * fields of all the events, in order, updating our current
+ * clock value as we visit.
+ *
+ * While visiting the packet context fields, do not consider
+ * `timestamp_begin` and `timestamp_end` because this function's
+ * purpose is to set them anyway. Also do not consider
+ * `packet_size`, `content_size`, `events_discarded`, and
+ * `packet_seq_num` if they are not set because those are
+ * autopopulating fields.
+ */
+ len = bt_field_type_structure_get_field_count(
+ stream->packet_context->type);
+ assert(len >= 0);
-end:
- return ret;
-}
+ for (i = 0; i < len; i++) {
+ const char *member_name;
+ struct bt_field *member_field;
-static
-int set_packet_context_timestamp_end(struct bt_stream *stream)
-{
- int ret = 0;
+ ret = bt_field_type_structure_get_field_by_index(
+ stream->packet_context->type, &member_name, NULL, i);
+ assert(ret == 0);
- if (stream->events->len == 0) {
- BT_LOGV("Current packet contains no events: skipping: "
- "stream-addr=%p, stream-name=\"%s\"",
- stream, bt_stream_get_name(stream));
- goto end;
+ if (strcmp(member_name, "timestamp_begin") == 0 ||
+ strcmp(member_name, "timestamp_end") == 0) {
+ continue;
+ }
+
+ member_field = bt_field_structure_get_field_by_index(
+ stream->packet_context, i);
+ assert(member_field);
+
+ if (strcmp(member_name, "packet_size") == 0 &&
+ !bt_field_is_set(member_field)) {
+ bt_put(member_field);
+ continue;
+ }
+
+ if (strcmp(member_name, "content_size") == 0 &&
+ !bt_field_is_set(member_field)) {
+ bt_put(member_field);
+ continue;
+ }
+
+ if (strcmp(member_name, "events_discarded") == 0 &&
+ !bt_field_is_set(member_field)) {
+ bt_put(member_field);
+ continue;
+ }
+
+ if (strcmp(member_name, "packet_seq_num") == 0 &&
+ !bt_field_is_set(member_field)) {
+ bt_put(member_field);
+ continue;
+ }
+
+ ret = visit_field_update_clock_value(member_field,
+ &cur_clock_value);
+ bt_put(member_field);
+ if (ret) {
+ BT_LOGW("Cannot automatically update clock value "
+ "in stream's packet context: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "field-name=\"%s\"",
+ stream, bt_stream_get_name(stream),
+ member_name);
+ goto end;
+ }
}
- ret = set_packet_context_timestamp_field(stream, "timestamp_end",
- g_ptr_array_index(stream->events, stream->events->len - 1));
+ for (i = 0; i < stream->events->len; i++) {
+ struct bt_event *event = g_ptr_array_index(stream->events, i);
+
+ assert(event);
+ ret = visit_event_update_clock_value(event, &cur_clock_value);
+ if (ret) {
+ BT_LOGW("Cannot automatically update clock value "
+ "in stream's packet context: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "index=%" PRIu64 ", event-addr=%p, "
+ "event-class-id=%" PRId64 ", "
+ "event-class-name=\"%s\"",
+ stream, bt_stream_get_name(stream),
+ i, event,
+ bt_event_class_get_id(event->event_class),
+ bt_event_class_get_name(event->event_class));
+ goto end;
+ }
+ }
+
+ /*
+ * Everything is visited, thus the current clock value
+ * corresponds to the ending timestamp. Validate this value
+ * against the provided value of `timestamp_end`, if any,
+ * otherwise set it.
+ */
+ if (ts_end_field && bt_field_is_set(ts_end_field)) {
+ ret = bt_field_unsigned_integer_get_value(ts_end_field, &val);
+ assert(ret == 0);
+
+ if (val < cur_clock_value) {
+ BT_LOGW("Packet's final timestamp is less than "
+ "computed packet's final timestamp: "
+ "stream-addr=%p, stream-name=\"%s\", "
+ "cur-packet-ts-end=%" PRIu64 ", "
+ "computed-packet-ts-end=%" PRIu64,
+ stream, bt_stream_get_name(stream),
+ val, cur_clock_value);
+ ret = -1;
+ goto end;
+ }
+
+ stream->last_ts_end = val;
+ }
+
+ if (ts_end_field && !bt_field_is_set(ts_end_field)) {
+ ret = set_integer_field_value(ts_end_field, cur_clock_value);
+ assert(ret == 0);
+ stream->last_ts_end = cur_clock_value;
+ }
+
+ if (!ts_end_field) {
+ stream->last_ts_end = cur_clock_value;
+ }
+
+ /* Set `timestamp_begin` field to initial clock value */
+ if (ts_begin_field && !bt_field_is_set(ts_begin_field)) {
+ ret = set_integer_field_value(ts_begin_field, init_clock_value);
+ assert(ret == 0);
+ }
end:
+ bt_put(ts_begin_field);
+ bt_put(ts_end_field);
return ret;
}
static
-int auto_populate_packet_context(struct bt_stream *stream)
+int auto_populate_packet_context(struct bt_stream *stream, bool set_ts)
{
int ret = 0;
goto end;
}
- ret = set_packet_context_timestamp_begin(stream);
- if (ret) {
- BT_LOGW("Cannot set packet context's beginning timestamp field: "
- "stream-addr=%p, stream-name=\"%s\"",
- stream, bt_stream_get_name(stream));
- goto end;
- }
-
- ret = set_packet_context_timestamp_end(stream);
- if (ret) {
- BT_LOGW("Cannot set packet context's end timestamp field: "
- "stream-addr=%p, stream-name=\"%s\"",
- stream, bt_stream_get_name(stream));
- goto end;
+ if (set_ts) {
+ ret = set_packet_context_timestamps(stream);
+ if (ret) {
+ BT_LOGW("Cannot set packet context's timestamp fields: "
+ "stream-addr=%p, stream-name=\"%s\"",
+ stream, bt_stream_get_name(stream));
+ goto end;
+ }
}
ret = set_packet_context_events_discarded(stream);
if (trace->is_created_by_writer) {
int fd;
+
writer = (struct bt_ctf_writer *) bt_object_get_parent(trace);
stream->id = (int64_t) stream_class->next_stream_id++;
+ stream->last_ts_end = -1ULL;
BT_LOGD("Stream object belongs to a writer's trace: "
"writer-addr=%p", writer);
id_field = bt_field_structure_get_field_by_name(event->event_header, "id");
event_class_id = bt_event_class_get_id(event->event_class);
- if (event_class_id < 0) {
- BT_LOGE("Event class ID cannot be found");
- ret = -1;
- goto end;
- }
+ assert(event_class_id >= 0);
+
if (id_field && bt_field_type_is_integer(id_field->type)) {
ret = set_integer_field_value(id_field, event_class_id);
if (ret) {
* integer field.
* 2. This stream's class has a registered clock (set with
* bt_stream_class_set_clock()).
- * 3. The event header field "timestamp" has its type mapped to
- * a clock class which is also the clock class of this
- * stream's class's registered clock.
+ * 3. The "timestamp" field is not set.
*/
- timestamp_field = bt_field_structure_get_field_by_name(event->event_header,
- "timestamp");
+ timestamp_field = bt_field_structure_get_field_by_name(
+ event->event_header, "timestamp");
if (timestamp_field && stream->stream_class->clock &&
- bt_field_type_is_integer(timestamp_field->type)) {
+ bt_field_type_is_integer(timestamp_field->type) &&
+ !bt_field_is_set(timestamp_field)) {
struct bt_clock_class *stream_class_clock_class =
stream->stream_class->clock->clock_class;
mapped_clock_class =
bt_field_type_integer_get_mapped_clock_class(
timestamp_field->type);
- if (!mapped_clock_class ||
- mapped_clock_class == stream_class_clock_class) {
+ if (mapped_clock_class) {
uint64_t timestamp;
+ assert(mapped_clock_class == stream_class_clock_class);
ret = bt_ctf_clock_get_value(
stream->stream_class->clock,
×tamp);
goto end;
}
- ret = auto_populate_packet_context(stream);
+ ret = auto_populate_packet_context(stream, true);
if (ret) {
BT_LOGW_STR("Cannot automatically populate the stream's packet context field.");
ret = -1;
* (e.g. when a packet is resized).
*/
packet_context_pos.base_mma = stream->pos.base_mma;
- ret = auto_populate_packet_context(stream);
+ ret = auto_populate_packet_context(stream, false);
if (ret) {
BT_LOGW_STR("Cannot automatically populate the stream's packet context field.");
ret = -1;
projects / babeltrace.git / blobdiff