BT_HIDDEN
int bt_ctf_event_populate_event_header(struct bt_ctf_event *event)
{
int ret = 0;
struct bt_ctf_field *id_field = NULL, *timestamp_field = NULL;
if (!event || event->frozen) {
ret = -1;
goto end;
}
id_field = bt_ctf_field_structure_get_field(event->event_header, "id");
if (id_field) {
ret = set_integer_field_value(id_field,
(uint64_t) bt_ctf_event_class_get_id(
event->event_class));
if (ret) {
goto end;
}
}
timestamp_field = bt_ctf_field_structure_get_field(event->event_header,
"timestamp");
if (timestamp_field) {
struct bt_ctf_field_type *timestamp_field_type =
bt_ctf_field_get_type(timestamp_field);
struct bt_ctf_clock *mapped_clock;
assert(timestamp_field_type);
mapped_clock = bt_ctf_field_type_integer_get_mapped_clock(
timestamp_field_type);
bt_put(timestamp_field_type);
if (mapped_clock) {
int64_t timestamp;
ret = bt_ctf_clock_get_time(mapped_clock, ×tamp);
bt_put(mapped_clock);
if (ret) {
goto end;
}
ret = set_integer_field_value(timestamp_field,
timestamp);
if (ret) {
goto end;
}
}
}
end:
bt_put(id_field);
bt_put(timestamp_field);
return ret;
}
int bt_ctf_stream_get_discarded_events_count(
struct bt_ctf_stream *stream, uint64_t *count)
{
int64_t ret = 0;
int field_signed;
struct bt_ctf_field *events_discarded_field = NULL;
struct bt_ctf_field_type *events_discarded_field_type = NULL;
if (!stream || !count || !stream->packet_context) {
ret = -1;
goto end;
}
events_discarded_field = bt_ctf_field_structure_get_field(
stream->packet_context, "events_discarded");
if (!events_discarded_field) {
ret = -1;
goto end;
}
events_discarded_field_type = bt_ctf_field_get_type(
events_discarded_field);
if (!events_discarded_field_type) {
ret = -1;
goto end;
}
field_signed = bt_ctf_field_type_integer_get_signed(
events_discarded_field_type);
if (field_signed < 0) {
ret = field_signed;
goto end;
}
if (field_signed) {
int64_t signed_count;
ret = bt_ctf_field_signed_integer_get_value(
events_discarded_field, &signed_count);
if (ret) {
goto end;
}
if (signed_count < 0) {
/* Invalid value */
ret = -1;
goto end;
}
*count = (uint64_t) signed_count;
} else {
ret = bt_ctf_field_unsigned_integer_get_value(
events_discarded_field, count);
if (ret) {
goto end;
}
}
end:
bt_put(events_discarded_field);
bt_put(events_discarded_field_type);
return ret;
}
void bt_ctf_stream_append_discarded_events(struct bt_ctf_stream *stream,
uint64_t event_count)
{
int ret;
int field_signed;
uint64_t previous_count;
uint64_t new_count;
struct bt_ctf_field *events_discarded_field = NULL;
struct bt_ctf_field_type *events_discarded_field_type = NULL;
if (!stream || !stream->packet_context) {
goto end;
}
ret = bt_ctf_stream_get_discarded_events_count(stream,
&previous_count);
if (ret) {
goto end;
}
events_discarded_field = bt_ctf_field_structure_get_field(
stream->packet_context, "events_discarded");
if (!events_discarded_field) {
goto end;
}
events_discarded_field_type = bt_ctf_field_get_type(
events_discarded_field);
if (!events_discarded_field_type) {
goto end;
}
field_signed = bt_ctf_field_type_integer_get_signed(
events_discarded_field_type);
if (field_signed < 0) {
goto end;
}
new_count = previous_count + event_count;
if (field_signed) {
ret = bt_ctf_field_signed_integer_set_value(
events_discarded_field, (int64_t) new_count);
if (ret) {
goto end;
}
} else {
ret = bt_ctf_field_unsigned_integer_set_value(
events_discarded_field, new_count);
if (ret) {
goto end;
}
}
end:
bt_put(events_discarded_field);
bt_put(events_discarded_field_type);
}
static
int set_structure_field_integer(struct bt_ctf_field *structure, char *name,
uint64_t value)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
struct bt_ctf_field *integer =
bt_ctf_field_structure_get_field(structure, name);
if (!structure || !name) {
ret = -1;
goto end;
}
if (!integer) {
/* Field not found, not an error. */
goto end;
}
/* Make sure the payload has not already been set. */
if (!bt_ctf_field_validate(integer)) {
/* Payload already set, not an error */
goto end;
}
field_type = bt_ctf_field_get_type(integer);
/* Something is serioulsly wrong */
assert(field_type);
if (bt_ctf_field_type_get_type_id(field_type) != CTF_TYPE_INTEGER) {
/*
* The user most likely meant for us to populate this field
* automatically. However, we can only do this if the field
* is an integer. Return an error.
*/
ret = -1;
goto end;
}
if (bt_ctf_field_type_integer_get_signed(field_type)) {
ret = bt_ctf_field_signed_integer_set_value(integer,
(int64_t) value);
} else {
ret = bt_ctf_field_unsigned_integer_set_value(integer, value);
}
end:
bt_put(integer);
bt_put(field_type);
return ret;
}
static
int set_packet_header_magic(struct bt_ctf_stream *stream)
{
int ret = 0;
struct bt_ctf_field_type *magic_field_type = NULL;
struct bt_ctf_field *magic_field = bt_ctf_field_structure_get_field(
stream->packet_header, "magic");
if (!magic_field) {
/* No magic field found. Not an error, skip. */
goto end;
}
if (!bt_ctf_field_validate(magic_field)) {
/* Value already set. Not an error, skip. */
goto end;
}
magic_field_type = bt_ctf_field_get_type(magic_field);
assert(magic_field_type);
if (bt_ctf_field_type_get_type_id(magic_field_type) !=
CTF_TYPE_INTEGER) {
/* Magic field is not an integer. Not an error, skip. */
goto end;
}
if (bt_ctf_field_type_integer_get_size(magic_field_type) != 32) {
/*
* Magic field is not of the expected size.
* Not an error, skip.
*/
goto end;
}
ret = bt_ctf_field_type_integer_get_signed(magic_field_type);
assert(ret >= 0);
if (ret) {
ret = bt_ctf_field_signed_integer_set_value(magic_field,
(int64_t) 0xC1FC1FC1);
} else {
ret = bt_ctf_field_unsigned_integer_set_value(magic_field,
(uint64_t) 0xC1FC1FC1);
}
end:
bt_put(magic_field);
bt_put(magic_field_type);
return ret;
}
static
void stream_flush_cb(struct bt_ctf_stream *stream, struct bt_ctf_writer *writer)
{
struct bt_ctf_field *stream_id;
/* Start a new packet in the stream */
if (stream->flushed_packet_count) {
/* ctf_init_pos has already initialized the first packet */
ctf_packet_seek(&stream->pos.parent, 0, SEEK_CUR);
}
stream_id = bt_ctf_field_structure_get_field(
writer->trace_packet_header, "stream_id");
bt_ctf_field_unsigned_integer_set_value(stream_id, stream->stream_class->id);
bt_ctf_field_put(stream_id);
/* Write the trace_packet_header */
bt_ctf_field_serialize(writer->trace_packet_header, &stream->pos);
}
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) !=
CTF_TYPE_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;
}
struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
const char *name)
{
struct bt_ctf_field *field = NULL;
if (!event) {
goto end;
}
if (name) {
field = bt_ctf_field_structure_get_field(event->fields_payload,
name);
} else {
field = event->fields_payload;
bt_get(field);
}
end:
return field;
}
static
int set_packet_header_stream_id(struct bt_ctf_stream *stream)
{
int ret = 0;
uint32_t stream_id;
struct bt_ctf_field_type *stream_id_field_type = NULL;
struct bt_ctf_field *stream_id_field = bt_ctf_field_structure_get_field(
stream->packet_header, "stream_id");
if (!stream_id_field) {
/* No stream_id field found. Not an error, skip. */
goto end;
}
if (!bt_ctf_field_validate(stream_id_field)) {
/* Value already set. Not an error, skip. */
goto end;
}
stream_id_field_type = bt_ctf_field_get_type(stream_id_field);
assert(stream_id_field_type);
if (bt_ctf_field_type_get_type_id(stream_id_field_type) !=
CTF_TYPE_INTEGER) {
/* stream_id field is not an integer. Not an error, skip. */
goto end;
}
stream_id = stream->stream_class->id;
ret = bt_ctf_field_type_integer_get_signed(stream_id_field_type);
assert(ret >= 0);
if (ret) {
ret = bt_ctf_field_signed_integer_set_value(stream_id_field,
(int64_t) stream_id);
} else {
ret = bt_ctf_field_unsigned_integer_set_value(stream_id_field,
(uint64_t) stream_id);
}
end:
bt_put(stream_id_field);
bt_put(stream_id_field_type);
return ret;
}
static
int init_trace_packet_header(struct bt_ctf_writer *writer)
{
size_t i;
int ret = 0;
struct bt_ctf_field *trace_packet_header = NULL,
*magic = NULL, *uuid_array = NULL;
struct bt_ctf_field_type *_uint32_t =
get_field_type(FIELD_TYPE_ALIAS_UINT32_T);
struct bt_ctf_field_type *_uint8_t =
get_field_type(FIELD_TYPE_ALIAS_UINT8_T);
struct bt_ctf_field_type *trace_packet_header_type =
bt_ctf_field_type_structure_create();
struct bt_ctf_field_type *uuid_array_type =
bt_ctf_field_type_array_create(_uint8_t, 16);
if (!trace_packet_header_type || !uuid_array_type) {
ret = -1;
goto end;
}
ret = bt_ctf_field_type_set_byte_order(_uint32_t,
(writer->byte_order == LITTLE_ENDIAN ?
BT_CTF_BYTE_ORDER_LITTLE_ENDIAN :
BT_CTF_BYTE_ORDER_BIG_ENDIAN));
if (ret) {
goto end;
}
ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
_uint32_t, "magic");
if (ret) {
goto end;
}
ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
uuid_array_type, "uuid");
if (ret) {
goto end;
}
ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
_uint32_t, "stream_id");
if (ret) {
goto end;
}
trace_packet_header = bt_ctf_field_create(trace_packet_header_type);
if (!trace_packet_header) {
ret = -1;
goto end;
}
magic = bt_ctf_field_structure_get_field(trace_packet_header, "magic");
ret = bt_ctf_field_unsigned_integer_set_value(magic, 0xC1FC1FC1);
if (ret) {
goto end;
}
uuid_array = bt_ctf_field_structure_get_field(trace_packet_header,
"uuid");
for (i = 0; i < 16; i++) {
struct bt_ctf_field *uuid_element =
bt_ctf_field_array_get_field(uuid_array, i);
ret = bt_ctf_field_unsigned_integer_set_value(uuid_element,
writer->uuid[i]);
bt_ctf_field_put(uuid_element);
if (ret) {
goto end;
}
}
bt_ctf_field_type_put(writer->trace_packet_header_type);
bt_ctf_field_put(writer->trace_packet_header);
writer->trace_packet_header_type = trace_packet_header_type;
writer->trace_packet_header = trace_packet_header;
end:
bt_ctf_field_type_put(uuid_array_type);
bt_ctf_field_type_put(_uint32_t);
bt_ctf_field_type_put(_uint8_t);
bt_ctf_field_put(magic);
bt_ctf_field_put(uuid_array);
if (ret) {
bt_ctf_field_type_put(trace_packet_header_type);
bt_ctf_field_put(trace_packet_header);
}
return ret;
}
static
int set_packet_header_uuid(struct bt_ctf_stream *stream)
{
int i, ret = 0;
struct bt_ctf_field_type *uuid_field_type = NULL;
struct bt_ctf_field_type *element_field_type = NULL;
struct bt_ctf_field *uuid_field = bt_ctf_field_structure_get_field(
stream->packet_header, "uuid");
if (!uuid_field) {
/* No uuid field found. Not an error, skip. */
goto end;
}
if (!bt_ctf_field_validate(uuid_field)) {
/* Value already set. Not an error, skip. */
goto end;
}
uuid_field_type = bt_ctf_field_get_type(uuid_field);
assert(uuid_field_type);
if (bt_ctf_field_type_get_type_id(uuid_field_type) !=
CTF_TYPE_ARRAY) {
/* UUID field is not an array. Not an error, skip. */
goto end;
}
if (bt_ctf_field_type_array_get_length(uuid_field_type) != 16) {
/*
* UUID field is not of the expected size.
* Not an error, skip.
*/
goto end;
}
element_field_type = bt_ctf_field_type_array_get_element_type(
uuid_field_type);
assert(element_field_type);
if (bt_ctf_field_type_get_type_id(element_field_type) !=
CTF_TYPE_INTEGER) {
/* UUID array elements are not integers. Not an error, skip */
goto end;
}
for (i = 0; i < 16; i++) {
struct bt_ctf_field *uuid_element =
bt_ctf_field_array_get_field(uuid_field, i);
ret = bt_ctf_field_type_integer_get_signed(element_field_type);
assert(ret >= 0);
if (ret) {
ret = bt_ctf_field_signed_integer_set_value(
uuid_element, (int64_t) stream->trace->uuid[i]);
} else {
ret = bt_ctf_field_unsigned_integer_set_value(
uuid_element,
(uint64_t) stream->trace->uuid[i]);
}
bt_put(uuid_element);
if (ret) {
goto end;
}
}
end:
bt_put(uuid_field);
bt_put(uuid_field_type);
bt_put(element_field_type);
return ret;
}
BT_HIDDEN
enum bt_component_status update_packet_context_field(FILE *err,
struct bt_ctf_packet *writer_packet,
const char *name, int64_t value)
{
enum bt_component_status ret;
struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
struct bt_ctf_field_type *struct_type = NULL, *field_type = NULL;
struct bt_ctf_field *field = NULL, *writer_field = NULL;
int nr_fields, i, int_ret;
packet_context = bt_ctf_packet_get_context(writer_packet);
if (!packet_context) {
fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
__LINE__);
goto error;
}
struct_type = bt_ctf_field_get_type(packet_context);
if (!struct_type) {
fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
__LINE__);
goto error;
}
writer_packet_context = bt_ctf_packet_get_context(writer_packet);
if (!writer_packet_context) {
fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
__LINE__);
goto error;
}
nr_fields = bt_ctf_field_type_structure_get_field_count(struct_type);
for (i = 0; i < nr_fields; i++) {
const char *field_name;
field = bt_ctf_field_structure_get_field_by_index(
packet_context, i);
if (!field) {
fprintf(err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
goto error;
}
if (bt_ctf_field_type_structure_get_field(struct_type,
&field_name, &field_type, i) < 0) {
fprintf(err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
goto error;
}
if (strcmp(field_name, name)) {
BT_PUT(field_type);
BT_PUT(field);
continue;
}
if (bt_ctf_field_type_get_type_id(field_type) != BT_CTF_FIELD_TYPE_ID_INTEGER) {
fprintf(err, "[error] Unexpected packet context field type\n");
goto error;
}
writer_field = bt_ctf_field_structure_get_field(writer_packet_context,
field_name);
if (!writer_field) {
fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
__LINE__);
goto error;
}
int_ret = bt_ctf_field_unsigned_integer_set_value(writer_field, value);
if (int_ret < 0) {
fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
__LINE__);
goto error;
}
BT_PUT(writer_field);
BT_PUT(field_type);
BT_PUT(field);
}
ret = BT_COMPONENT_STATUS_OK;
goto end;
error:
bt_put(writer_field);
bt_put(field_type);
bt_put(field);
ret = BT_COMPONENT_STATUS_ERROR;
end:
bt_put(struct_type);
bt_put(packet_context);
return ret;
}
