LTTNG_HIDDEN
int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *cmdline,
int is_open)
{
int ret;
/* Open element pid */
ret = mi_lttng_writer_open_element(writer, mi_lttng_element_pid);
if (ret) {
goto end;
}
/* Writing pid number */
ret = mi_lttng_writer_write_element_signed_int(writer,
mi_lttng_element_pid_id, (int)pid);
if (ret) {
goto end;
}
/* Writing name of the process */
ret = mi_lttng_writer_write_element_string(writer, config_element_name,
cmdline);
if (ret) {
goto end;
}
if (!is_open) {
/* Closing Pid */
ret = mi_lttng_writer_close_element(writer);
}
end:
return ret;
}
LTTNG_HIDDEN
int mi_lttng_event_field(struct mi_writer *writer,
struct lttng_event_field *field)
{
int ret;
if (!field->field_name[0]) {
ret = 0;
goto end;
}
/* Open field */
ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field);
if (ret) {
goto end;
}
if (!field->field_name[0]) {
goto close;
}
/* Name */
ret = mi_lttng_writer_write_element_string(writer, config_element_name,
field->field_name);
if (ret) {
goto end;
}
/* Type */
ret = mi_lttng_writer_write_element_string(writer, config_element_type,
mi_lttng_eventfieldtype_string(field->type));
if (ret) {
goto end;
}
/* nowrite */
ret = mi_lttng_writer_write_element_signed_int(writer,
mi_lttng_element_nowrite, field->nowrite);
if (ret) {
goto end;
}
close:
/* Close field element */
ret = mi_lttng_writer_close_element(writer);
end:
return ret;
}
LTTNG_HIDDEN
int mi_lttng_pid_target(struct mi_writer *writer, pid_t pid, int is_open)
{
int ret;
ret = mi_lttng_writer_open_element(writer,
config_element_target_pid);
if (ret) {
goto end;
}
/* Writing pid number
* Special case for element all on track untrack command
* All pid is represented as wildcard *
*/
if ((int) pid == -1) {
ret = mi_lttng_writer_write_element_string(writer,
config_element_pid,
mi_lttng_element_track_untrack_all_wildcard);
} else {
ret = mi_lttng_writer_write_element_signed_int(writer,
config_element_pid, (int) pid);
}
if (ret) {
goto end;
}
if (!is_open) {
ret = mi_lttng_writer_close_element(writer);
if (ret) {
goto end;
}
}
end:
return ret;
}
LTTNG_HIDDEN
int mi_lttng_channel_attr(struct mi_writer *writer,
struct lttng_channel_attr *attr)
{
int ret = 0;
struct lttng_channel *chan = caa_container_of(attr,
struct lttng_channel, attr);
uint64_t discarded_events, lost_packets, monitor_timer_interval;
int64_t blocking_timeout;
assert(attr);
ret = lttng_channel_get_discarded_event_count(chan, &discarded_events);
if (ret) {
goto end;
}
ret = lttng_channel_get_lost_packet_count(chan, &lost_packets);
if (ret) {
goto end;
}
ret = lttng_channel_get_monitor_timer_interval(chan,
&monitor_timer_interval);
if (ret) {
goto end;
}
ret = lttng_channel_get_blocking_timeout(chan,
&blocking_timeout);
if (ret) {
goto end;
}
/* Opening Attributes */
ret = mi_lttng_writer_open_element(writer, config_element_attributes);
if (ret) {
goto end;
}
/* Overwrite */
ret = mi_lttng_writer_write_element_string(writer,
config_element_overwrite_mode,
attr->overwrite ? config_overwrite_mode_overwrite :
config_overwrite_mode_discard);
if (ret) {
goto end;
}
/* Sub buffer size in byte */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_subbuf_size, attr->subbuf_size);
if (ret) {
goto end;
}
/* Number of subbuffer (power of two) */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_num_subbuf,
attr->num_subbuf);
if (ret) {
goto end;
}
/* Switch timer interval in usec */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_switch_timer_interval,
attr->switch_timer_interval);
if (ret) {
goto end;
}
/* Read timer interval in usec */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_read_timer_interval,
attr->read_timer_interval);
if (ret) {
goto end;
}
/* Monitor timer interval in usec */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_monitor_timer_interval,
monitor_timer_interval);
if (ret) {
goto end;
}
/* Retry timeout in usec */
ret = mi_lttng_writer_write_element_signed_int(writer,
config_element_blocking_timeout,
blocking_timeout);
if (ret) {
goto end;
}
/* Event output */
ret = mi_lttng_writer_write_element_string(writer,
config_element_output_type,
attr->output == LTTNG_EVENT_SPLICE ?
config_output_type_splice : config_output_type_mmap);
if (ret) {
goto end;
}
/* Tracefile size in bytes */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_tracefile_size, attr->tracefile_size);
if (ret) {
goto end;
}
/* Count of tracefiles */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_tracefile_count,
attr->tracefile_count);
if (ret) {
goto end;
}
/* Live timer interval in usec*/
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_live_timer_interval,
attr->live_timer_interval);
if (ret) {
goto end;
}
/* Discarded events */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_discarded_events,
discarded_events);
if (ret) {
goto end;
}
/* Lost packets */
ret = mi_lttng_writer_write_element_unsigned_int(writer,
config_element_lost_packets,
lost_packets);
if (ret) {
goto end;
}
/* Closing attributes */
ret = mi_lttng_writer_close_element(writer);
if (ret) {
goto end;
}
end:
return ret;
}
