/**
* Returns a structure containing the following fields:
* - uint8_t payload_8;
* - uint16_t payload_16;
* - uint32_t payload_32;
*/
static struct bt_ctf_field_type *create_integer_struct(void)
{
int ret;
struct bt_ctf_field_type *structure = NULL;
struct bt_ctf_field_type *ui8 = NULL, *ui16 = NULL, *ui32 = NULL;
structure = bt_ctf_field_type_structure_create();
if (!structure) {
goto error;
}
ui8 = bt_ctf_field_type_integer_create(8);
if (!ui8) {
diag("Failed to create uint8_t type");
goto error;
}
ret = bt_ctf_field_type_structure_add_field(structure, ui8,
"payload_8");
if (ret) {
diag("Failed to add uint8_t to structure");
goto error;
}
ui16 = bt_ctf_field_type_integer_create(16);
if (!ui16) {
diag("Failed to create uint16_t type");
goto error;
}
ret = bt_ctf_field_type_structure_add_field(structure, ui16,
"payload_16");
if (ret) {
diag("Failed to add uint16_t to structure");
goto error;
}
ui32 = bt_ctf_field_type_integer_create(32);
if (!ui32) {
diag("Failed to create uint32_t type");
goto error;
}
ret = bt_ctf_field_type_structure_add_field(structure, ui32,
"payload_32");
if (ret) {
diag("Failed to add uint32_t to structure");
goto error;
}
end:
BT_PUT(ui8);
BT_PUT(ui16);
BT_PUT(ui32);
return structure;
error:
BT_PUT(structure);
goto end;
}
static
int init_trace_packet_header(struct bt_ctf_trace *trace)
{
int ret = 0;
struct bt_ctf_field *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_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;
}
ret = bt_ctf_trace_set_packet_header_type(trace,
trace_packet_header_type);
if (ret) {
goto end;
}
end:
bt_put(uuid_array_type);
bt_put(_uint32_t);
bt_put(_uint8_t);
bt_put(magic);
bt_put(uuid_array);
bt_put(trace_packet_header_type);
return ret;
}
int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
struct bt_ctf_field_type *type,
const char *name)
{
int ret = 0;
if (!event_class || !type) {
BT_LOGW("Invalid parameter: event class or field type is NULL: "
"event-class-addr=%p, field-type-addr=%p",
event_class, type);
ret = -1;
goto end;
}
if (!bt_ctf_identifier_is_valid(name)) {
BT_LOGW("Invalid parameter: event class's payload field type's field name is not a valid CTF identifier: "
"addr=%p, name=\"%s\", id=%" PRId64 ", field-name=\"%s\"",
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class),
name);
ret = -1;
goto end;
}
if (event_class->common.frozen) {
BT_LOGW("Invalid parameter: event class is frozen: "
"addr=%p, name=\"%s\", id=%" PRId64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
ret = -1;
goto end;
}
if (!event_class->common.payload_field_type) {
BT_LOGW("Event class has no payload field type: "
"addr=%p, name=\"%s\", id=%" PRId64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
ret = -1;
goto end;
}
BT_ASSERT(bt_ctf_field_type_common_get_type_id(
event_class->common.payload_field_type) ==
BT_CTF_FIELD_TYPE_ID_STRUCT);
ret = bt_ctf_field_type_structure_add_field(
(void *) event_class->common.payload_field_type,
(void *) type, name);
BT_LOGV("Added field to event class's payload field type: "
"event-class-addr=%p, event-class-name=\"%s\", "
"event-class-id=%" PRId64 ", field-name=\"%s\", ft-addr=%p",
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class), name, type);
end:
return ret;
}
/**
* A complex event has the following payload:
* - uint8_t payload_8;
* - uint16_t payload_16;
* - uint32_t payload_32;
* - struct payload_struct:
* - uint8_t payload_8;
* - uint16_t payload_16;
* - uint32_t payload_32;
*/
static struct bt_ctf_event_class *create_complex_event(const char *name)
{
int ret;
struct bt_ctf_event_class *event = NULL;
struct bt_ctf_field_type *inner = NULL, *outer = NULL;
assert(name);
event = bt_ctf_event_class_create(name);
if (!event) {
diag("Failed to create complex event");
goto error;
}
outer = create_integer_struct();
if (!outer) {
diag("Failed to initialize integer structure");
goto error;
}
inner = create_integer_struct();
if (!inner) {
diag("Failed to initialize integer structure");
goto error;
}
ret = bt_ctf_field_type_structure_add_field(outer, inner,
"payload_struct");
if (ret) {
diag("Failed to add inner structure to outer structure");
goto error;
}
ret = bt_ctf_event_class_set_payload_type(event, outer);
if (ret) {
diag("Failed to set complex event payload");
goto error;
}
end:
BT_PUT(inner);
BT_PUT(outer);
return event;
error:
BT_PUT(event);
goto end;;
}
int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
struct bt_ctf_field_type *type,
const char *name)
{
int ret = 0;
if (!event_class || !type || bt_ctf_validate_identifier(name) ||
event_class->frozen) {
ret = -1;
goto end;
}
if (bt_ctf_field_type_get_type_id(event_class->fields) !=
CTF_TYPE_STRUCT) {
ret = -1;
goto end;
}
ret = bt_ctf_field_type_structure_add_field(event_class->fields,
type, name);
end:
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;
}
