/*
* Fill lttng_channel array of all channels.
*/
-static void list_lttng_channels(struct ltt_session *session,
+static void list_lttng_channels(int domain, struct ltt_session *session,
struct lttng_channel *channels)
{
int i = 0;
DBG("Listing channels for session %s", session->name);
- /* Kernel channels */
- if (session->kernel_session != NULL) {
- cds_list_for_each_entry(kchan,
- &session->kernel_session->channel_list.head, list) {
- /* Copy lttng_channel struct to array */
- memcpy(&channels[i], kchan->channel, sizeof(struct lttng_channel));
- channels[i].enabled = kchan->enabled;
+ switch (domain) {
+ case LTTNG_DOMAIN_KERNEL:
+ /* Kernel channels */
+ if (session->kernel_session != NULL) {
+ cds_list_for_each_entry(kchan,
+ &session->kernel_session->channel_list.head, list) {
+ /* Copy lttng_channel struct to array */
+ memcpy(&channels[i], kchan->channel, sizeof(struct lttng_channel));
+ channels[i].enabled = kchan->enabled;
+ i++;
+ }
+ }
+ break;
+ case LTTNG_DOMAIN_UST:
+ {
+ struct cds_lfht_iter iter;
+ struct ltt_ust_channel *uchan;
+
+ cds_lfht_for_each_entry(session->ust_session->domain_global.channels,
+ &iter, uchan, node) {
+ strncpy(channels[i].name, uchan->name, LTTNG_SYMBOL_NAME_LEN);
+ channels[i].attr.overwrite = uchan->attr.overwrite;
+ channels[i].attr.subbuf_size = uchan->attr.subbuf_size;
+ channels[i].attr.num_subbuf = uchan->attr.num_subbuf;
+ channels[i].attr.switch_timer_interval =
+ uchan->attr.switch_timer_interval;
+ channels[i].attr.read_timer_interval =
+ uchan->attr.read_timer_interval;
+ channels[i].attr.output = uchan->attr.output;
+ }
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+/*
+ * Create a list of ust global domain events.
+ */
+static int list_lttng_ust_global_events(char *channel_name,
+ struct ltt_ust_domain_global *ust_global, struct lttng_event **events)
+{
+ int i = 0, ret = 0;
+ unsigned int nb_event = 0;
+ struct cds_lfht_iter iter;
+ struct ltt_ust_channel *uchan;
+ struct ltt_ust_event *uevent;
+ struct lttng_event *tmp;
+
+ DBG("Listing UST global events for channel %s", channel_name);
+
+ rcu_read_lock();
+
+ /* Count events in all channels */
+ cds_lfht_for_each_entry(ust_global->channels, &iter, uchan, node) {
+ nb_event += hashtable_get_count(uchan->events);
+ }
+
+ if (nb_event == 0) {
+ ret = nb_event;
+ goto error;
+ }
+
+ DBG3("Listing UST global %d events", nb_event);
+
+ tmp = zmalloc(nb_event * sizeof(struct lttng_event));
+ if (tmp == NULL) {
+ ret = -LTTCOMM_FATAL;
+ goto error;
+ }
+
+ cds_lfht_for_each_entry(ust_global->channels, &iter, uchan, node) {
+ cds_lfht_for_each_entry(uchan->events, &iter, uevent, node) {
+ strncpy(tmp[i].name, uevent->attr.name, LTTNG_SYMBOL_NAME_LEN);
+ tmp[i].name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
+ switch (uevent->attr.instrumentation) {
+ case LTTNG_UST_TRACEPOINT:
+ tmp[i].type = LTTNG_EVENT_TRACEPOINT;
+ break;
+ case LTTNG_UST_PROBE:
+ tmp[i].type = LTTNG_EVENT_PROBE;
+ break;
+ case LTTNG_UST_FUNCTION:
+ tmp[i].type = LTTNG_EVENT_FUNCTION;
+ break;
+ }
i++;
}
}
- /* TODO: Missing UST listing */
+ ret = nb_event;
+ *events = tmp;
+
+error:
+ rcu_read_unlock();
+ return ret;
}
/*
- * Fill lttng_event array of all events in the channel.
+ * Fill lttng_event array of all kernel events in the channel.
*/
-static void list_lttng_events(struct ltt_kernel_channel *kchan,
- struct lttng_event *events)
+static int list_lttng_kernel_events(char *channel_name,
+ struct ltt_kernel_session *kernel_session, struct lttng_event **events)
{
- /*
- * TODO: This is ONLY kernel. Need UST support.
- */
- int i = 0;
+ int i = 0, ret;
+ unsigned int nb_event;
struct ltt_kernel_event *event;
+ struct ltt_kernel_channel *kchan;
+
+ kchan = trace_kernel_get_channel_by_name(channel_name, kernel_session);
+ if (kchan == NULL) {
+ ret = LTTCOMM_KERN_CHAN_NOT_FOUND;
+ goto error;
+ }
+
+ nb_event = kchan->event_count;
DBG("Listing events for channel %s", kchan->channel->name);
+ if (nb_event == 0) {
+ ret = nb_event;
+ goto error;
+ }
+
+ *events = zmalloc(nb_event * sizeof(struct lttng_event));
+ if (*events == NULL) {
+ ret = LTTCOMM_FATAL;
+ goto error;
+ }
+
/* Kernel channels */
cds_list_for_each_entry(event, &kchan->events_list.head , list) {
- strncpy(events[i].name, event->event->name, LTTNG_SYMBOL_NAME_LEN);
- events[i].name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
- events[i].enabled = event->enabled;
+ strncpy((*events)[i].name, event->event->name, LTTNG_SYMBOL_NAME_LEN);
+ (*events)[i].name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
+ (*events)[i].enabled = event->enabled;
switch (event->event->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
- events[i].type = LTTNG_EVENT_TRACEPOINT;
+ (*events)[i].type = LTTNG_EVENT_TRACEPOINT;
break;
case LTTNG_KERNEL_KPROBE:
case LTTNG_KERNEL_KRETPROBE:
- events[i].type = LTTNG_EVENT_PROBE;
- memcpy(&events[i].attr.probe, &event->event->u.kprobe,
+ (*events)[i].type = LTTNG_EVENT_PROBE;
+ memcpy(&(*events)[i].attr.probe, &event->event->u.kprobe,
sizeof(struct lttng_kernel_kprobe));
break;
case LTTNG_KERNEL_FUNCTION:
- events[i].type = LTTNG_EVENT_FUNCTION;
- memcpy(&events[i].attr.ftrace, &event->event->u.ftrace,
+ (*events)[i].type = LTTNG_EVENT_FUNCTION;
+ memcpy(&((*events)[i].attr.ftrace), &event->event->u.ftrace,
sizeof(struct lttng_kernel_function));
break;
case LTTNG_KERNEL_NOOP:
- events[i].type = LTTNG_EVENT_NOOP;
+ (*events)[i].type = LTTNG_EVENT_NOOP;
break;
case LTTNG_KERNEL_SYSCALL:
- events[i].type = LTTNG_EVENT_SYSCALL;
+ (*events)[i].type = LTTNG_EVENT_SYSCALL;
break;
case LTTNG_KERNEL_ALL:
assert(0);
}
i++;
}
+
+ return nb_event;
+
+error:
+ return ret;
}
/*
goto error;
}
break;
+ case LTTNG_DOMAIN_UST:
+ nb_events = ust_app_list_events(events);
+ if (nb_events < 0) {
+ ret = LTTCOMM_UST_LIST_FAIL;
+ goto error;
+ }
+ break;
default:
- /* TODO: Userspace listing */
ret = LTTCOMM_NOT_IMPLEMENTED;
goto error;
}
static ssize_t cmd_list_domains(struct ltt_session *session,
struct lttng_domain **domains)
{
- int ret;
+ int ret, index = 0;
ssize_t nb_dom = 0;
if (session->kernel_session != NULL) {
+ DBG3("Listing domains found kernel domain");
nb_dom++;
}
- /* TODO: User-space tracer domain support */
+ if (session->ust_session != NULL) {
+ DBG3("Listing domains found UST global domain");
+ nb_dom++;
+ }
- *domains = malloc(nb_dom * sizeof(struct lttng_domain));
+ *domains = zmalloc(nb_dom * sizeof(struct lttng_domain));
if (*domains == NULL) {
ret = -LTTCOMM_FATAL;
goto error;
}
- (*domains)[0].type = LTTNG_DOMAIN_KERNEL;
+ if (session->kernel_session != NULL) {
+ (*domains)[index].type = LTTNG_DOMAIN_KERNEL;
+ index++;
+ }
+
+ if (session->ust_session != NULL) {
+ (*domains)[index].type = LTTNG_DOMAIN_UST;
+ index++;
+ }
return nb_dom;
/*
* Command LTTNG_LIST_CHANNELS processed by the client thread.
*/
-static ssize_t cmd_list_channels(struct ltt_session *session,
+static ssize_t cmd_list_channels(int domain, struct ltt_session *session,
struct lttng_channel **channels)
{
int ret;
ssize_t nb_chan = 0;
- if (session->kernel_session != NULL) {
- nb_chan += session->kernel_session->channel_count;
- }
-
- *channels = malloc(nb_chan * sizeof(struct lttng_channel));
- if (*channels == NULL) {
- ret = -LTTCOMM_FATAL;
+ switch (domain) {
+ case LTTNG_DOMAIN_KERNEL:
+ if (session->kernel_session != NULL) {
+ nb_chan = session->kernel_session->channel_count;
+ }
+ DBG3("Number of kernel channels %ld", nb_chan);
+ break;
+ case LTTNG_DOMAIN_UST:
+ if (session->ust_session != NULL) {
+ nb_chan = hashtable_get_count(
+ session->ust_session->domain_global.channels);
+ }
+ DBG3("Number of UST global channels %ld", nb_chan);
+ break;
+ default:
+ *channels = NULL;
+ ret = -LTTCOMM_NOT_IMPLEMENTED;
goto error;
}
- list_lttng_channels(session, *channels);
+ if (nb_chan > 0) {
+ *channels = zmalloc(nb_chan * sizeof(struct lttng_channel));
+ if (*channels == NULL) {
+ ret = -LTTCOMM_FATAL;
+ goto error;
+ }
- /* TODO UST support */
+ list_lttng_channels(domain, session, *channels);
+ } else {
+ *channels = NULL;
+ }
return nb_chan;
/*
* Command LTTNG_LIST_EVENTS processed by the client thread.
*/
-static ssize_t cmd_list_events(struct ltt_session *session,
+static ssize_t cmd_list_events(int domain, struct ltt_session *session,
char *channel_name, struct lttng_event **events)
{
- int ret;
+ int ret = 0;
ssize_t nb_event = 0;
- struct ltt_kernel_channel *kchan = NULL;
- if (session->kernel_session != NULL) {
- kchan = trace_kernel_get_channel_by_name(channel_name,
- session->kernel_session);
- if (kchan == NULL) {
- ret = -LTTCOMM_KERN_CHAN_NOT_FOUND;
- goto error;
+ switch (domain) {
+ case LTTNG_DOMAIN_KERNEL:
+ if (session->kernel_session != NULL) {
+ nb_event = list_lttng_kernel_events(channel_name,
+ session->kernel_session, events);
}
- nb_event += kchan->event_count;
+ break;
+ case LTTNG_DOMAIN_UST:
+ {
+ if (session->ust_session != NULL) {
+ nb_event = list_lttng_ust_global_events(channel_name,
+ &session->ust_session->domain_global, events);
+ }
+ break;
}
-
- *events = malloc(nb_event * sizeof(struct lttng_event));
- if (*events == NULL) {
- ret = -LTTCOMM_FATAL;
+ default:
+ ret = -LTTCOMM_NOT_IMPLEMENTED;
goto error;
}
- list_lttng_events(kchan, *events);
-
- /* TODO: User-space tracer support */
-
- return nb_event;
+ ret = nb_event;
error:
return ret;
size_t nb_chan;
struct lttng_channel *channels;
- nb_chan = cmd_list_channels(cmd_ctx->session, &channels);
+ nb_chan = cmd_list_channels(cmd_ctx->lsm->domain.type,
+ cmd_ctx->session, &channels);
if (nb_chan < 0) {
ret = -nb_chan;
goto error;
}
case LTTNG_LIST_EVENTS:
{
- size_t nb_event;
+ ssize_t nb_event;
struct lttng_event *events = NULL;
- nb_event = cmd_list_events(cmd_ctx->session,
+ nb_event = cmd_list_events(cmd_ctx->lsm->domain.type, cmd_ctx->session,
cmd_ctx->lsm->u.list.channel_name, &events);
if (nb_event < 0) {
ret = -nb_event;
projects / lttng-tools.git / blobdiff