const char *indent6 = " ";
const char *indent8 = " ";
+#ifdef LTTNG_EMBED_HELP
+static const char help_msg[] =
+#include <lttng-list.1.h>
+;
+#endif
+
enum {
OPT_HELP = 1,
OPT_USERSPACE,
static struct lttng_handle *handle;
static struct mi_writer *writer;
+/* Only set when listing a single session. */
+static struct lttng_session listed_session;
+
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
return exclusion_msg;
}
+static void print_userspace_probe_location(struct lttng_event *event)
+{
+ const struct lttng_userspace_probe_location *location;
+ const struct lttng_userspace_probe_location_lookup_method *lookup_method;
+ enum lttng_userspace_probe_location_lookup_method_type lookup_type;
+
+ location = lttng_event_get_userspace_probe_location(event);
+ if (!location) {
+ MSG("Event has no userspace probe location");
+ return;
+ }
+
+ lookup_method = lttng_userspace_probe_location_get_lookup_method(location);
+ if (!lookup_method) {
+ MSG("Event has no userspace probe location lookup method");
+ return;
+ }
+
+ MSG("%s%s (type: userspace-probe)%s", indent6, event->name, enabled_string(event->enabled));
+
+ lookup_type = lttng_userspace_probe_location_lookup_method_get_type(lookup_method);
+
+ switch (lttng_userspace_probe_location_get_type(location)) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_UNKNOWN:
+ MSG("%sType: Unknown", indent8);
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION:
+ {
+ const char *function_name;
+ const char *binary_path;
+
+ MSG("%sType: Function", indent8);
+ function_name = lttng_userspace_probe_location_function_get_function_name(location);
+ binary_path = realpath(lttng_userspace_probe_location_function_get_binary_path(location), NULL);
+
+ MSG("%sBinary path: %s", indent8, binary_path ? binary_path : "NULL");
+ MSG("%sFunction: %s()", indent8, function_name ? function_name : "NULL");
+ switch (lookup_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF:
+ MSG("%sLookup method: ELF", indent8);
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_DEFAULT:
+ MSG("%sLookup method: default", indent8);
+ break;
+ default:
+ MSG("%sLookup method: INVALID LOOKUP TYPE ENCOUNTERED", indent8);
+ break;
+ }
+ break;
+ }
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT:
+ {
+ const char *probe_name, *provider_name;
+ const char *binary_path;
+
+ MSG("%sType: Tracepoint", indent8);
+ probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(location);
+ provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(location);
+ binary_path = realpath(lttng_userspace_probe_location_tracepoint_get_binary_path(location), NULL);
+ MSG("%sBinary path: %s", indent8, binary_path ? binary_path : "NULL");
+ MSG("%sTracepoint: %s:%s", indent8, provider_name ? provider_name : "NULL", probe_name ? probe_name : "NULL");
+ switch (lookup_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT:
+ MSG("%sLookup method: SDT", indent8);
+ break;
+ default:
+ MSG("%sLookup method: INVALID LOOKUP TYPE ENCOUNTERED", indent8);
+ break;
+ }
+ break;
+ }
+ default:
+ ERR("Invalid probe type encountered");
+ }
+}
+
/*
* Pretty print single event.
*/
MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name);
}
break;
+ case LTTNG_EVENT_USERSPACE_PROBE:
+ print_userspace_probe_location(event);
+ break;
case LTTNG_EVENT_FUNCTION_ENTRY:
MSG("%s%s (type: function)%s%s", indent6,
event->name, enabled_string(event->enabled),
safe_string(filter_msg));
break;
case LTTNG_EVENT_ALL:
+ /* Fall-through. */
+ default:
/* We should never have "all" events in list. */
assert(0);
break;
}
} else {
/* Pretty print */
- MSG("\n%sEvents:", indent4);
+ MSG("\n%sEvent rules:", indent4);
if (count == 0) {
MSG("%sNone\n", indent6);
goto end;
return ret;
}
+static
+void print_timer(const char *timer_name, uint32_t space_count, int64_t value)
+{
+ uint32_t i;
+
+ _MSG("%s%s:", indent6, timer_name);
+ for (i = 0; i < space_count; i++) {
+ _MSG(" ");
+ }
+
+ if (value) {
+ MSG("%" PRId64 " µs", value);
+ } else {
+ MSG("inactive");
+ }
+}
+
/*
* Pretty print channel
*/
static void print_channel(struct lttng_channel *channel)
{
int ret;
- uint64_t discarded_events, lost_packets;
+ uint64_t discarded_events, lost_packets, monitor_timer_interval;
+ int64_t blocking_timeout;
ret = lttng_channel_get_discarded_event_count(channel,
&discarded_events);
return;
}
- MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled));
+ ret = lttng_channel_get_monitor_timer_interval(channel,
+ &monitor_timer_interval);
+ if (ret) {
+ ERR("Failed to retrieve monitor interval of channel");
+ return;
+ }
+ ret = lttng_channel_get_blocking_timeout(channel,
+ &blocking_timeout);
+ if (ret) {
+ ERR("Failed to retrieve blocking timeout of channel");
+ return;
+ }
+
+ MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled));
MSG("%sAttributes:", indent4);
- MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite);
- MSG("%ssubbuffers size: %" PRIu64, indent6, channel->attr.subbuf_size);
- MSG("%snumber of subbuffers: %" PRIu64, indent6, channel->attr.num_subbuf);
- MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval);
- MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval);
- MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count);
- MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size);
- MSG("%sdiscarded events: %" PRIu64, indent6, discarded_events);
- MSG("%slost packets: %" PRIu64, indent6, lost_packets);
+ MSG("%sEvent-loss mode: %s", indent6, channel->attr.overwrite ? "overwrite" : "discard");
+ MSG("%sSub-buffer size: %" PRIu64 " bytes", indent6, channel->attr.subbuf_size);
+ MSG("%sSub-buffer count: %" PRIu64, indent6, channel->attr.num_subbuf);
+
+ print_timer("Switch timer", 5, channel->attr.switch_timer_interval);
+ print_timer("Read timer", 7, channel->attr.read_timer_interval);
+ print_timer("Monitor timer", 4, monitor_timer_interval);
+
+ if (!channel->attr.overwrite) {
+ if (blocking_timeout == -1) {
+ MSG("%sBlocking timeout: infinite", indent6);
+ } else {
+ MSG("%sBlocking timeout: %" PRId64 " µs", indent6, blocking_timeout);
+ }
+ }
+
+ MSG("%sTrace file count: %" PRIu64 " per stream", indent6,
+ channel->attr.tracefile_count == 0 ?
+ 1 : channel->attr.tracefile_count);
+ if (channel->attr.tracefile_size != 0 ) {
+ MSG("%sTrace file size: %" PRIu64 " bytes", indent6,
+ channel->attr.tracefile_size);
+ } else {
+ MSG("%sTrace file size: %s", indent6, "unlimited");
+ }
switch (channel->attr.output) {
case LTTNG_EVENT_SPLICE:
- MSG("%soutput: splice()", indent6);
+ MSG("%sOutput mode: splice", indent6);
break;
case LTTNG_EVENT_MMAP:
- MSG("%soutput: mmap()", indent6);
+ MSG("%sOutput mode: mmap", indent6);
break;
}
+
+ MSG("\n%sStatistics:", indent4);
+ if (listed_session.snapshot_mode) {
+ /*
+ * The lost packet count is omitted for sessions in snapshot
+ * mode as it is misleading: it would indicate the number of
+ * packets that the consumer could not extract during the
+ * course of recording the snapshot. It does not have the
+ * same meaning as the "regular" lost packet count that
+ * would result from the consumer not keeping up with
+ * event production in an overwrite-mode channel.
+ *
+ * A more interesting statistic would be the number of
+ * packets lost between the first and last extracted
+ * packets of a given snapshot (which prevents most analyses).
+ */
+ MSG("%sNone", indent6);
+ goto skip_stats_printing;
+ }
+
+ if (!channel->attr.overwrite) {
+ MSG("%sDiscarded events: %" PRIu64, indent6, discarded_events);
+ } else {
+ MSG("%sLost packets: %" PRIu64, indent6, lost_packets);
+ }
+skip_stats_printing:
+ return;
}
/*
return ret;
}
+static enum cmd_error_code print_periodic_rotation_schedule(
+ const struct lttng_rotation_schedule *schedule)
+{
+ enum cmd_error_code ret;
+ enum lttng_rotation_status status;
+ uint64_t value;
+
+ status = lttng_rotation_schedule_periodic_get_period(schedule,
+ &value);
+ if (status != LTTNG_ROTATION_STATUS_OK) {
+ ERR("Failed to retrieve period parameter from periodic rotation schedule.");
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ MSG(" timer period: %" PRIu64" µs", value);
+ ret = CMD_SUCCESS;
+end:
+ return ret;
+}
+
+static enum cmd_error_code print_size_threshold_rotation_schedule(
+ const struct lttng_rotation_schedule *schedule)
+{
+ enum cmd_error_code ret;
+ enum lttng_rotation_status status;
+ uint64_t value;
+
+ status = lttng_rotation_schedule_size_threshold_get_threshold(schedule,
+ &value);
+ if (status != LTTNG_ROTATION_STATUS_OK) {
+ ERR("Failed to retrieve size parameter from size-based rotation schedule.");
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ MSG(" size threshold: %" PRIu64" bytes", value);
+ ret = CMD_SUCCESS;
+end:
+ return ret;
+}
+
+static enum cmd_error_code print_rotation_schedule(
+ const struct lttng_rotation_schedule *schedule)
+{
+ enum cmd_error_code ret;
+
+ switch (lttng_rotation_schedule_get_type(schedule)) {
+ case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
+ ret = print_size_threshold_rotation_schedule(schedule);
+ break;
+ case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
+ ret = print_periodic_rotation_schedule(schedule);
+ break;
+ default:
+ ret = CMD_ERROR;
+ }
+ return ret;
+}
+
+/*
+ * List the automatic rotation settings.
+ */
+static enum cmd_error_code list_rotate_settings(const char *session_name)
+{
+ int ret;
+ enum cmd_error_code cmd_ret = CMD_SUCCESS;
+ unsigned int count, i;
+ struct lttng_rotation_schedules *schedules = NULL;
+ enum lttng_rotation_status status;
+
+ ret = lttng_session_list_rotation_schedules(session_name, &schedules);
+ if (ret != LTTNG_OK) {
+ ERR("Failed to list session rotation schedules: %s", lttng_strerror(ret));
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+
+ status = lttng_rotation_schedules_get_count(schedules, &count);
+ if (status != LTTNG_ROTATION_STATUS_OK) {
+ ERR("Failed to retrieve the number of session rotation schedules.");
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+
+ if (count == 0) {
+ cmd_ret = CMD_SUCCESS;
+ goto end;
+ }
+
+ MSG("Automatic rotation schedules:");
+ if (lttng_opt_mi) {
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_rotation_schedules);
+ if (ret) {
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ enum cmd_error_code tmp_ret = CMD_SUCCESS;
+ const struct lttng_rotation_schedule *schedule;
+
+ schedule = lttng_rotation_schedules_get_at_index(schedules, i);
+ if (!schedule) {
+ ERR("Failed to retrieve session rotation schedule.");
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+
+ if (lttng_opt_mi) {
+ ret = mi_lttng_rotation_schedule(writer, schedule);
+ if (ret) {
+ tmp_ret = CMD_ERROR;
+ }
+ } else {
+ tmp_ret = print_rotation_schedule(schedule);
+ }
+
+ /*
+ * Report an error if the serialization of any of the
+ * descriptors failed.
+ */
+ cmd_ret = cmd_ret ? cmd_ret : tmp_ret;
+ }
+
+ _MSG("\n");
+ if (lttng_opt_mi) {
+ /* Close the rotation_schedules element. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+ }
+end:
+ lttng_rotation_schedules_destroy(schedules);
+ return cmd_ret;
+}
+
/*
* Machine interface
* Find the session with session_name as name
active_string(sessions[i].enabled),
snapshot_string(sessions[i].snapshot_mode));
MSG("%sTrace path: %s\n", indent4, sessions[i].path);
+ memcpy(&listed_session, &sessions[i],
+ sizeof(listed_session));
break;
}
} else {
snapshot_string(sessions[i].snapshot_mode));
MSG("%sTrace path: %s", indent4, sessions[i].path);
if (sessions[i].live_timer_interval != 0) {
- MSG("%sLive timer interval (usec): %u", indent4,
+ MSG("%sLive timer interval: %u µs", indent4,
sessions[i].live_timer_interval);
}
MSG("");
int cmd_list(int argc, const char **argv)
{
int opt, ret = CMD_SUCCESS;
- const char *session_name;
+ const char *session_name, *leftover = NULL;
static poptContext pc;
struct lttng_domain domain;
struct lttng_domain *domains = NULL;
session_name = poptGetArg(pc);
DBG2("Session name: %s", session_name);
+ leftover = poptGetArg(pc);
+ if (leftover) {
+ ERR("Unknown argument: %s", leftover);
+ ret = CMD_ERROR;
+ goto end;
+ }
+
if (opt_kernel) {
domain.type = LTTNG_DOMAIN_KERNEL;
} else if (opt_userspace) {
goto end;
}
+ ret = list_rotate_settings(session_name);
+ if (ret) {
+ goto end;
+ }
+
/* Domain listing */
if (opt_domain) {
ret = list_domains(session_name);
projects / lttng-tools.git / blobdiff