Extract the lost packets and discarded events counters

[lttng-tools.git] / src / common / mi-lttng.c

diff --git a/src/common/mi-lttng.c b/src/common/mi-lttng.c
index 72b0791527eddf25ba89fb1a7ed4b27197fc9101..5530acee9a1ce11e91aa2cef3e863ca385901a98 100644 (file)
--- a/src/common/mi-lttng.c
+++ b/src/common/mi-lttng.c
@@ -21,6 +21,7 @@
 #include <common/config/session-config.h>
 #include <common/defaults.h>
 #include <lttng/snapshot-internal.h>
+#include <lttng/channel.h>
 #include "mi-lttng.h"
 
 #include <assert.h>
@@ -866,9 +867,22 @@ 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;
 
        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;
+       }
+
        /* Opening Attributes */
        ret = mi_lttng_writer_open_element(writer, config_element_attributes);
        if (ret) {
@@ -947,6 +961,22 @@ int mi_lttng_channel_attr(struct mi_writer *writer,
                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) {