[lttng-dev] [BABELTRACE PATCH 2/3] Handle packets containing only a header

[jdesfossez@efficios.com (Julien Desfossez)]

In live streaming with LTTng, if we do a stop and then a destroy, we
receive a packet that contains only a header. With this patch, we will
ask for a new packet when we see this case.

Signed-off-by: Julien Desfossez <jdesfossez at efficios.com>
---
 formats/ctf/ctf.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/formats/ctf/ctf.c b/formats/ctf/ctf.c
index 5f263cd..5cf8097 100644
--- a/formats/ctf/ctf.c
+++ b/formats/ctf/ctf.c
@@ -476,6 +476,10 @@ int ctf_read_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *str
 		/* Stream is inactive for now (live reading). */
 		return EAGAIN;
 	}
+	/* Packet only contains headers */
+	if (pos->offset == pos->content_size)
+		return EAGAIN;
+
 	assert(pos->offset < pos->content_size);
 
 	/* Read event header */
-- 
1.8.3.2