- /* Read and print event-declared event context */
- if (event_class->context) {
- generic_rw(&sin->pos.parent, &event_class->context->p);
- generic_rw(&sout->parent, &event_class->context->p);
+struct babeltrace_iter *babeltrace_iter_create(struct trace_collection *tc)
+{
+ int i, stream_id;
+ int ret = 0;
+ struct babeltrace_iter *iter;
+
+ iter = malloc(sizeof(struct babeltrace_iter));
+ if (!iter)
+ goto error_malloc;
+ iter->stream_heap = g_new(struct ptr_heap, 1);
+ iter->tc = tc;
+
+ ret = heap_init(iter->stream_heap, 0, stream_compare);
+ if (ret < 0)
+ goto error_heap_init;
+
+ for (i = 0; i < tc->array->len; i++) {
+ struct ctf_trace *tin;
+ struct trace_descriptor *td_read;
+
+ td_read = g_ptr_array_index(tc->array, i);
+ tin = container_of(td_read, struct ctf_trace, parent);
+
+ /* Populate heap with each stream */
+ for (stream_id = 0; stream_id < tin->streams->len;
+ stream_id++) {
+ struct ctf_stream_class *stream;
+ int filenr;
+
+ stream = g_ptr_array_index(tin->streams, stream_id);
+ if (!stream)
+ continue;
+ for (filenr = 0; filenr < stream->streams->len;
+ filenr++) {
+ struct ctf_file_stream *file_stream;
+
+ file_stream = g_ptr_array_index(stream->streams,
+ filenr);
+
+ ret = stream_read_event(file_stream);
+ if (ret == EOF) {
+ ret = 0;
+ continue;
+ } else if (ret) {
+ goto error;
+ }
+ /* Add to heap */
+ ret = heap_insert(iter->stream_heap, file_stream);
+ if (ret)
+ goto error;
+ }
+ }