BT_HIDDEN
int bt_ctf_event_set_payload_field(struct bt_ctf_event *event,
struct bt_ctf_field *payload)
{
int ret = 0;
struct bt_ctf_field_type *payload_type = NULL;
if (!event || !payload || event->frozen) {
ret = -1;
goto end;
}
payload_type = bt_ctf_field_get_type(payload);
if (!payload_type) {
ret = -1;
goto end;
}
if (bt_ctf_field_type_get_type_id(payload_type) !=
CTF_TYPE_STRUCT) {
ret = -1;
goto end;
}
bt_get(payload);
bt_put(event->fields_payload);
event->fields_payload = payload;
end:
bt_put(payload_type);
return ret;
}
BT_HIDDEN
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 || !field || 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_get(field);
bt_put(stream->packet_context);
stream->packet_context = field;
end:
return ret;
}
BT_HIDDEN
int bt_ctf_event_set_stream_event_context(struct bt_ctf_event *event,
struct bt_ctf_field *stream_event_context)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
struct bt_ctf_stream_class *stream_class = NULL;
if (!event || !stream_event_context || event->frozen) {
ret = -1;
goto end;
}
stream_class = bt_ctf_event_class_get_stream_class(event->event_class);
/*
* We should not have been able to create the event without associating
* the event class to a stream class.
*/
assert(stream_class);
field_type = bt_ctf_field_get_type(stream_event_context);
if (bt_ctf_field_type_compare(field_type,
stream_class->event_context_type)) {
ret = -1;
goto end;
}
bt_get(stream_event_context);
BT_MOVE(event->stream_event_context, stream_event_context);
end:
BT_PUT(stream_class);
bt_put(field_type);
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;
}
BT_HIDDEN
int bt_ctf_event_set_event_context(struct bt_ctf_event *event,
struct bt_ctf_field *context)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
if (!event || !context || event->frozen) {
ret = -1;
goto end;
}
field_type = bt_ctf_field_get_type(context);
if (bt_ctf_field_type_compare(field_type,
event->event_class->context)) {
ret = -1;
goto end;
}
bt_get(context);
bt_put(event->context_payload);
event->context_payload = context;
end:
bt_put(field_type);
return ret;
}
BT_HIDDEN
int bt_ctf_event_set_header(struct bt_ctf_event *event,
struct bt_ctf_field *header)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
struct bt_ctf_stream_class *stream_class = NULL;
if (!event || !header || event->frozen) {
ret = -1;
goto end;
}
stream_class = (struct bt_ctf_stream_class *) bt_object_get_parent(
event->event_class);
/*
* Ensure the provided header's type matches the one registered to the
* stream class.
*/
field_type = bt_ctf_field_get_type(header);
if (bt_ctf_field_type_compare(field_type,
stream_class->event_header_type)) {
ret = -1;
goto end;
}
bt_get(header);
bt_put(event->event_header);
event->event_header = header;
end:
bt_put(stream_class);
bt_put(field_type);
return ret;
}
BT_HIDDEN
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 || !field || 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_get(field);
bt_put(stream->packet_header);
stream->packet_header = field;
end:
BT_PUT(trace);
bt_put(field_type);
return ret;
}
int bt_ctf_event_set_payload(struct bt_ctf_event *event,
const char *name,
struct bt_ctf_field *payload)
{
int ret = 0;
if (!event || !payload || event->frozen) {
ret = -1;
goto end;
}
if (name) {
ret = bt_ctf_field_structure_set_field(event->fields_payload,
name, payload);
} else {
struct bt_ctf_field_type *payload_type;
payload_type = bt_ctf_field_get_type(payload);
if (bt_ctf_field_type_compare(payload_type,
event->event_class->fields) == 0) {
bt_put(event->fields_payload);
bt_get(payload);
event->fields_payload = payload;
} else {
ret = -1;
}
bt_put(payload_type);
}
end:
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);
}
const char *bt_ctf_field_enumeration_get_mapping_name(
struct bt_ctf_field *field)
{
int ret;
const char *name = NULL;
struct bt_ctf_field *container = NULL;
struct bt_ctf_field_type *container_type = NULL;
struct bt_ctf_field_type_integer *integer_type = NULL;
struct bt_ctf_field_type_enumeration *enumeration_type = NULL;
container = bt_ctf_field_enumeration_get_container(field);
if (!container) {
goto end;
}
container_type = bt_ctf_field_get_type(container);
if (!container_type) {
goto error_put_container;
}
integer_type = container_of(container_type,
struct bt_ctf_field_type_integer, parent);
enumeration_type = container_of(field->type,
struct bt_ctf_field_type_enumeration, parent);
if (!integer_type->declaration.signedness) {
uint64_t value;
ret = bt_ctf_field_unsigned_integer_get_value(container,
&value);
if (ret) {
goto error_put_container_type;
}
name = bt_ctf_field_type_enumeration_get_mapping_name_unsigned(
enumeration_type, value);
} else {
int64_t value;
ret = bt_ctf_field_signed_integer_get_value(container,
&value);
if (ret) {
goto error_put_container_type;
}
name = bt_ctf_field_type_enumeration_get_mapping_name_signed(
enumeration_type, value);
}
error_put_container_type:
bt_ctf_field_type_put(container_type);
error_put_container:
bt_ctf_field_put(container);
end:
return name;
}
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;
}
struct bt_ctf_field *bt_ctf_field_structure_get_field_by_index(
struct bt_ctf_field *field, size_t index)
{
int ret;
const char *field_name;
struct bt_ctf_field_structure *structure;
struct bt_ctf_field_type *structure_type;
struct bt_ctf_field_type *field_type = NULL;
struct bt_ctf_field *ret_field = NULL;
if (!field ||
bt_ctf_field_type_get_type_id(field->type) != CTF_TYPE_STRUCT) {
goto end;
}
structure = container_of(field, struct bt_ctf_field_structure, parent);
if (index >= structure->fields->len) {
goto error;
}
ret_field = structure->fields->pdata[index];
if (ret_field) {
goto end;
}
/* Field has not been instanciated yet, create it */
structure_type = bt_ctf_field_get_type(field);
if (!structure_type) {
goto error;
}
ret = bt_ctf_field_type_structure_get_field(structure_type,
&field_name, &field_type, index);
bt_ctf_field_type_put(structure_type);
if (ret) {
goto error;
}
ret_field = bt_ctf_field_create(field_type);
if (!ret_field) {
goto error;
}
structure->fields->pdata[index] = ret_field;
end:
bt_ctf_field_get(ret_field);
error:
if (field_type) {
bt_ctf_field_type_put(field_type);
}
return ret_field;
}
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
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;
}
static
int set_integer_field_value(struct bt_ctf_field* field, uint64_t value)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
if (!field) {
ret = -1;
goto end;
}
if (!bt_ctf_field_validate(field)) {
/* Payload already set, skip! (not an error) */
goto end;
}
field_type = bt_ctf_field_get_type(field);
assert(field_type);
if (bt_ctf_field_type_get_type_id(field_type) !=
CTF_TYPE_INTEGER) {
/* Not an integer and the value is unset, error. */
ret = -1;
goto end;
}
if (bt_ctf_field_type_integer_get_signed(field_type)) {
ret = bt_ctf_field_signed_integer_set_value(field, (int64_t) value);
if (ret) {
/* Value is out of range, error. */
goto end;
}
} else {
ret = bt_ctf_field_unsigned_integer_set_value(field, value);
if (ret) {
/* Value is out of range, error. */
goto end;
}
}
end:
bt_put(field_type);
return ret;
}
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;
}
int bt_ctf_packet_set_header(struct bt_ctf_packet *packet,
struct bt_ctf_field *header)
{
int ret = 0;
struct bt_ctf_trace *trace = NULL;
struct bt_ctf_stream_class *stream_class = NULL;
struct bt_ctf_field_type *header_field_type = NULL;
struct bt_ctf_field_type *expected_header_field_type = NULL;
if (!packet || !header || packet->frozen) {
ret = -1;
goto end;
}
stream_class = bt_ctf_stream_get_class(packet->stream);
assert(stream_class);
trace = bt_ctf_stream_class_get_trace(stream_class);
assert(trace);
header_field_type = bt_ctf_field_get_type(header);
assert(header_field_type);
expected_header_field_type = bt_ctf_trace_get_packet_header_type(trace);
if (bt_ctf_field_type_compare(header_field_type,
expected_header_field_type)) {
ret = -1;
goto end;
}
bt_put(packet->header);
packet->header = bt_get(header);
end:
BT_PUT(trace);
BT_PUT(stream_class);
BT_PUT(header_field_type);
BT_PUT(expected_header_field_type);
return ret;
}
int bt_ctf_packet_set_context(struct bt_ctf_packet *packet,
struct bt_ctf_field *context)
{
int ret = 0;
struct bt_ctf_stream_class *stream_class = NULL;
struct bt_ctf_field_type *context_field_type = NULL;
struct bt_ctf_field_type *expected_context_field_type = NULL;
if (!packet || !context || packet->frozen) {
ret = -1;
goto end;
}
stream_class = bt_ctf_stream_get_class(packet->stream);
assert(stream_class);
context_field_type = bt_ctf_field_get_type(context);
assert(context_field_type);
expected_context_field_type =
bt_ctf_stream_class_get_packet_context_type(stream_class);
if (bt_ctf_field_type_compare(context_field_type,
expected_context_field_type)) {
ret = -1;
goto end;
}
bt_put(packet->context);
packet->context = bt_get(context);
end:
BT_PUT(stream_class);
BT_PUT(context_field_type);
BT_PUT(expected_context_field_type);
return ret;
}
int bt_ctf_stream_set_packet_header(struct bt_ctf_stream *stream,
struct bt_ctf_field *field)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
if (!stream || !field) {
ret = -1;
goto end;
}
field_type = bt_ctf_field_get_type(field);
if (field_type != stream->trace->packet_header_type) {
ret = -1;
goto end;
}
bt_get(field);
bt_put(stream->packet_header);
stream->packet_header = field;
end:
bt_put(field_type);
return ret;
}
int bt_ctf_stream_set_event_context(struct bt_ctf_stream *stream,
struct bt_ctf_field *field)
{
int ret = 0;
struct bt_ctf_field_type *field_type = NULL;
if (!stream || !field) {
ret = -1;
goto end;
}
field_type = bt_ctf_field_get_type(field);
if (field_type != stream->stream_class->event_context_type) {
ret = -1;
goto end;
}
bt_get(field);
bt_put(stream->event_context);
stream->event_context = field;
end:
bt_put(field_type);
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
void bt_ctf_stream_update_clock_value(struct bt_ctf_stream *stream,
struct bt_ctf_field *value_field)
{
struct bt_ctf_field_type *value_type = NULL;
struct bt_ctf_clock *clock = NULL;
uint64_t requested_new_value;
uint64_t requested_new_value_mask;
uint64_t *cur_value;
uint64_t cur_value_masked;
int requested_new_value_size;
int ret;
assert(stream);
assert(clock);
assert(value_field);
value_type = bt_ctf_field_get_type(value_field);
assert(value_type);
clock = bt_ctf_field_type_integer_get_mapped_clock(value_type);
assert(clock);
requested_new_value_size =
bt_ctf_field_type_integer_get_size(value_type);
assert(requested_new_value_size > 0);
ret = bt_ctf_field_unsigned_integer_get_value(value_field,
&requested_new_value);
assert(!ret);
cur_value = g_hash_table_lookup(stream->clock_values, clock);
if (!cur_value) {
/*
* Updating the value of a clock which is not registered
* yet, so register it with the new value as its initial
* value.
*/
uint64_t *requested_new_value_ptr = g_new0(uint64_t, 1);
*requested_new_value_ptr = requested_new_value;
g_hash_table_insert(stream->clock_values, clock,
requested_new_value_ptr);
goto end;
}
/*
* Special case for a 64-bit new value, which is the limit
* of a clock value as of this version: overwrite the
* current value directly.
*/
if (requested_new_value_size == 64) {
*cur_value = requested_new_value;
goto end;
}
requested_new_value_mask = (1ULL << requested_new_value_size) - 1;
cur_value_masked = *cur_value & requested_new_value_mask;
if (requested_new_value < cur_value_masked) {
/*
* It looks like a wrap happened on the number of bits
* of the requested new value. Assume that the clock
* value wrapped only one time.
*/
*cur_value += requested_new_value_mask + 1;
}
/* Clear the low bits of the current clock value */
*cur_value &= ~requested_new_value_mask;
/* Set the low bits of the current clock value */
*cur_value |= requested_new_value;
end:
bt_put(clock);
bt_put(value_type);
}
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;
}
