X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=formats%2Fctf%2Fmetadata%2Fctf-visitor-generate-io-struct.c;fp=formats%2Fctf%2Fmetadata%2Fctf-visitor-generate-io-struct.c;h=98169457ffab32825580f57a0d79b7e8663a399d;hp=4515b53e437fb16238530f9371b20a745b79f2b2;hb=4e752ebc939db830c9d7e7c763f415744c9fc688;hpb=a88cb1c73648836f6d88e4d7cc5c100648414bc7

diff --git a/formats/ctf/metadata/ctf-visitor-generate-io-struct.c b/formats/ctf/metadata/ctf-visitor-generate-io-struct.c
index 4515b53e..98169457 100644
--- a/formats/ctf/metadata/ctf-visitor-generate-io-struct.c
+++ b/formats/ctf/metadata/ctf-visitor-generate-io-struct.c
@@ -268,6 +268,14 @@ struct ctf_stream_declaration *trace_stream_lookup(struct ctf_trace *trace, uint
 	return g_ptr_array_index(trace->streams, stream_id);
 }
 
+static
+struct ctf_event_declaration *stream_event_lookup(struct ctf_stream_declaration *stream, uint64_t event_id)
+{
+	if (stream->events_by_id->len <= event_id)
+		return NULL;
+	return g_ptr_array_index(stream->events_by_id, event_id);
+}
+
 static
 struct ctf_clock *trace_clock_lookup(struct ctf_trace *trace, GQuark clock_name)
 {
@@ -1885,6 +1893,13 @@ int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node,
 		fprintf(fd, "[error] %s: missing id field in event declaration\n", __func__);
 		goto error;
 	}
+	/* Disallow re-using the same event ID in the same stream */
+	if (stream_event_lookup(event->stream, event->id)) {
+		ret = -EPERM;
+		fprintf(fd, "[error] %s: event ID %" PRIu64 " used more than once in stream %" PRIu64 "\n",
+			__func__, event->id, event->stream_id);
+		goto error;
+	}
 	if (event->stream->events_by_id->len <= event->id)
 		g_ptr_array_set_size(event->stream->events_by_id, event->id + 1);
 	g_ptr_array_index(event->stream->events_by_id, event->id) = event;