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
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;
}
static int value_set(struct bt_ctf_field_type *type,
struct bt_ctf_event *event,
const char *name, u64 val)
{
struct bt_ctf_field *field;
bool sign = bt_ctf_field_type_integer_get_signed(type);
int ret;
field = bt_ctf_field_create(type);
if (!field) {
pr_err("failed to create a field %s\n", name);
return -1;
}
if (sign) {
ret = bt_ctf_field_signed_integer_set_value(field, val);
if (ret) {
pr_err("failed to set field value %s\n", name);
goto err;
}
} else {
ret = bt_ctf_field_unsigned_integer_set_value(field, val);
if (ret) {
pr_err("failed to set field value %s\n", name);
goto err;
}
}
ret = bt_ctf_event_set_payload(event, name, field);
if (ret) {
pr_err("failed to set payload %s\n", name);
goto err;
}
pr2(" SET [%s = %" PRIu64 "]\n", name, val);
err:
bt_ctf_field_put(field);
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;
}
