X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Flttng-ctl.c;h=157d9a4335af5b5d52b3fcc7be942b4f2d77719a;hb=53e367f936beb2f9a1f49f6a2920c2f58bcb08d7;hp=02b3fed4cd3a76a7ff5d828fbabed8723ca38750;hpb=795d57ce3012980e16a9493f5ba8c6ac91a9d07e;p=lttng-tools.git

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 02b3fed4c..157d9a433 100644
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -1694,10 +1694,15 @@ int lttng_list_channels(struct lttng_handle *handle,
 		struct lttng_channel **channels)
 {
 	int ret;
+	size_t channel_count, i;
+	const size_t channel_size = sizeof(struct lttng_channel) +
+			sizeof(struct lttcomm_channel_extended);
 	struct lttcomm_session_msg lsm;
+	void *extended_at;
 
 	if (handle == NULL) {
-		return -LTTNG_ERR_INVALID;
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
 	}
 
 	memset(&lsm, 0, sizeof(lsm));
@@ -1709,10 +1714,30 @@ int lttng_list_channels(struct lttng_handle *handle,
 
 	ret = lttng_ctl_ask_sessiond(&lsm, (void**) channels);
 	if (ret < 0) {
-		return ret;
+		goto end;
+	}
+
+	if (ret % channel_size) {
+		ret = -LTTNG_ERR_UNK;
+		free(*channels);
+		*channels = NULL;
+		goto end;
+	}
+	channel_count = (size_t) ret / channel_size;
+
+	/* Set extended info pointers */
+	extended_at = ((void *) *channels) +
+			channel_count * sizeof(struct lttng_channel);
+	for (i = 0; i < channel_count; i++) {
+		struct lttng_channel *chan = &(*channels)[i];
+
+		chan->attr.extended.ptr = extended_at;
+		extended_at += sizeof(struct lttcomm_channel_extended);
 	}
 
-	return ret / sizeof(struct lttng_channel);
+	ret = (int) channel_count;
+end:
+	return ret;
 }
 
 /*
@@ -1817,6 +1842,67 @@ end:
 	return ret;
 }
 
+int lttng_event_get_exclusion_name_count(struct lttng_event *event)
+{
+	int ret;
+	struct lttcomm_event_extended_header *ext_header;
+
+	if (!event) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	ext_header = event->extended.ptr;
+	if (!ext_header) {
+		/*
+		 * This can happen since the lttng_event structure is
+		 * used for other tasks where this pointer is never set.
+		 */
+		ret = 0;
+		goto end;
+	}
+
+	if (ext_header->nb_exclusions > INT_MAX) {
+		ret = -LTTNG_ERR_OVERFLOW;
+		goto end;
+	}
+	ret = (int) ext_header->nb_exclusions;
+end:
+	return ret;
+}
+
+int lttng_event_get_exclusion_name(struct lttng_event *event,
+		size_t index, const char **exclusion_name)
+{
+	int ret = 0;
+	struct lttcomm_event_extended_header *ext_header;
+	void *at;
+
+	if (!event || !exclusion_name) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	ext_header = event->extended.ptr;
+	if (!ext_header) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	if (index >= ext_header->nb_exclusions) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	at = (void *) ext_header + sizeof(*ext_header);
+	at += ext_header->filter_len;
+	at += index * LTTNG_SYMBOL_NAME_LEN;
+	*exclusion_name = at;
+
+end:
+	return ret;
+}
+
 /*
  * Sets the tracing_group variable with name.
  * This function allocates memory pointed to by tracing_group.
@@ -1913,6 +1999,58 @@ void lttng_channel_set_default_attr(struct lttng_domain *domain,
 	}
 }
 
+int lttng_channel_get_discarded_event_count(struct lttng_channel *channel,
+		uint64_t *discarded_events)
+{
+	int ret = 0;
+	struct lttcomm_channel_extended *chan_ext;
+
+	if (!channel || !discarded_events) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	chan_ext = channel->attr.extended.ptr;
+	if (!chan_ext) {
+		/*
+		 * This can happen since the lttng_channel structure is
+		 * used for other tasks where this pointer is never set.
+		 */
+		*discarded_events = 0;
+		goto end;
+	}
+
+	*discarded_events = chan_ext->discarded_events;
+end:
+	return ret;
+}
+
+int lttng_channel_get_lost_packet_count(struct lttng_channel *channel,
+		uint64_t *lost_packets)
+{
+	int ret = 0;
+	struct lttcomm_channel_extended *chan_ext;
+
+	if (!channel || !lost_packets) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	chan_ext = channel->attr.extended.ptr;
+	if (!chan_ext) {
+		/*
+		 * This can happen since the lttng_channel structure is
+		 * used for other tasks where this pointer is never set.
+		 */
+		*lost_packets = 0;
+		goto end;
+	}
+
+	*lost_packets = chan_ext->lost_packets;
+end:
+	return ret;
+}
+
 /*
  * Check if session daemon is alive.
  *