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-rw-r--r--tools/perf/util/stream.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/tools/perf/util/stream.h b/tools/perf/util/stream.h
new file mode 100644
index 000000000000..bee768874fea
--- /dev/null
+++ b/tools/perf/util/stream.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_STREAM_H
+#define __PERF_STREAM_H
+
+#include "callchain.h"
+
+struct stream {
+ struct callchain_node *cnode;
+ struct callchain_node *pair_cnode;
+};
+
+struct evsel_streams {
+ struct stream *streams;
+ int nr_streams_max;
+ int nr_streams;
+ int evsel_idx;
+ u64 streams_hits;
+};
+
+struct evlist_streams {
+ struct evsel_streams *ev_streams;
+ int nr_evsel;
+};
+
+struct evlist;
+
+void evlist_streams__delete(struct evlist_streams *els);
+
+struct evlist_streams *evlist__create_streams(struct evlist *evlist,
+ int nr_streams_max);
+
+struct evsel_streams *evsel_streams__entry(struct evlist_streams *els,
+ int evsel_idx);
+
+void evsel_streams__match(struct evsel_streams *es_base,
+ struct evsel_streams *es_pair);
+
+void evsel_streams__report(struct evsel_streams *es_base,
+ struct evsel_streams *es_pair);
+
+#endif /* __PERF_STREAM_H */