Per-stream ioctl to get the current timestamp

[lttng-modules.git] / lttng-ring-buffer-client.h

diff --git a/lttng-ring-buffer-client.h b/lttng-ring-buffer-client.h
index 167000a32bf9bc73b8501f0917812dc9c3d777ae..50c47b3bf49f6c2dd24e250cf1a9b97808cd8e27 100644 (file)
--- a/lttng-ring-buffer-client.h
+++ b/lttng-ring-buffer-client.h
@@ -467,6 +467,15 @@ static int client_stream_id(const struct lib_ring_buffer_config *config,
        return 0;
 }
 
+static int client_current_timestamp(const struct lib_ring_buffer_config *config,
+               struct lib_ring_buffer *bufb,
+               uint64_t *ts)
+{
+       *ts = config->cb.ring_buffer_clock_read(bufb->backend.chan);
+
+       return 0;
+}
+
 static const struct lib_ring_buffer_config client_config = {
        .cb.ring_buffer_clock_read = client_ring_buffer_clock_read,
        .cb.record_header_size = client_record_header_size,
@@ -500,6 +509,7 @@ struct channel *_channel_create(const char *name,
        lttng_chan->ops->content_size = client_content_size;
        lttng_chan->ops->packet_size = client_packet_size;
        lttng_chan->ops->stream_id = client_stream_id;
+       lttng_chan->ops->current_timestamp = client_current_timestamp;
 
        return channel_create(&client_config, name, lttng_chan, buf_addr,
                              subbuf_size, num_subbuf, switch_timer_interval,