LTTng ringbuffer ABI calls for index generation

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

diff --git a/lttng-ring-buffer-client.h b/lttng-ring-buffer-client.h
index 0b05561a5bf9d8a547247ca3fa122a67fa92f6c0..167000a32bf9bc73b8501f0917812dc9c3d777ae 100644 (file)
--- a/lttng-ring-buffer-client.h
+++ b/lttng-ring-buffer-client.h
@@ -390,6 +390,83 @@ static void client_buffer_finalize(struct lib_ring_buffer *buf, void *priv, int
 {
 }
 
+static struct packet_header *client_packet_header(
+               const struct lib_ring_buffer_config *config,
+               struct lib_ring_buffer *buf)
+{
+       struct lib_ring_buffer_backend *bufb;
+       unsigned long sb_bindex;
+       struct packet_header *header;
+
+       bufb = &buf->backend;
+       sb_bindex = subbuffer_id_get_index(config, bufb->buf_rsb.id);
+       header = (struct packet_header *)
+               lib_ring_buffer_offset_address(bufb,
+                               sb_bindex * bufb->chan->backend.subbuf_size);
+
+       return header;
+}
+
+static int client_timestamp_begin(const struct lib_ring_buffer_config *config,
+               struct lib_ring_buffer *buf,
+               uint64_t *timestamp_begin)
+{
+       struct packet_header *header = client_packet_header(config, buf);
+       *timestamp_begin = header->ctx.timestamp_begin;
+
+       return 0;
+}
+
+static int client_timestamp_end(const struct lib_ring_buffer_config *config,
+                       struct lib_ring_buffer *buf,
+                       uint64_t *timestamp_end)
+{
+       struct packet_header *header = client_packet_header(config, buf);
+       *timestamp_end = header->ctx.timestamp_end;
+
+       return 0;
+}
+
+static int client_events_discarded(const struct lib_ring_buffer_config *config,
+                       struct lib_ring_buffer *buf,
+                       uint64_t *events_discarded)
+{
+       struct packet_header *header = client_packet_header(config, buf);
+       *events_discarded = header->ctx.events_discarded;
+
+       return 0;
+}
+
+static int client_content_size(const struct lib_ring_buffer_config *config,
+                       struct lib_ring_buffer *buf,
+                       uint64_t *content_size)
+{
+       struct packet_header *header = client_packet_header(config, buf);
+       *content_size = header->ctx.content_size;
+
+       return 0;
+}
+
+static int client_packet_size(const struct lib_ring_buffer_config *config,
+                       struct lib_ring_buffer *buf,
+                       uint64_t *packet_size)
+{
+       struct packet_header *header = client_packet_header(config, buf);
+       *packet_size = header->ctx.packet_size;
+
+       return 0;
+}
+
+static int client_stream_id(const struct lib_ring_buffer_config *config,
+                       struct lib_ring_buffer *buf,
+                       uint64_t *stream_id)
+{
+       struct packet_header *header = client_packet_header(config, buf);
+       *stream_id = header->stream_id;
+
+       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,
@@ -417,6 +494,13 @@ struct channel *_channel_create(const char *name,
                                unsigned int switch_timer_interval,
                                unsigned int read_timer_interval)
 {
+       lttng_chan->ops->timestamp_begin = client_timestamp_begin;
+       lttng_chan->ops->timestamp_end = client_timestamp_end;
+       lttng_chan->ops->events_discarded = client_events_discarded;
+       lttng_chan->ops->content_size = client_content_size;
+       lttng_chan->ops->packet_size = client_packet_size;
+       lttng_chan->ops->stream_id = client_stream_id;
+
        return channel_create(&client_config, name, lttng_chan, buf_addr,
                              subbuf_size, num_subbuf, switch_timer_interval,
                              read_timer_interval);