perf evsel: Add iterator to iterate over events ordered by CPU

[linux-2.6-microblaze.git] / tools / perf / util / evlist.c

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index fdce590..dae6e84 100644 (file)
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -342,6 +342,38 @@ static int perf_evlist__nr_threads(struct evlist *evlist,
                return perf_thread_map__nr(evlist->core.threads);
 }
 
+void evlist__cpu_iter_start(struct evlist *evlist)
+{
+       struct evsel *pos;
+
+       /*
+        * Reset the per evsel cpu_iter. This is needed because
+        * each evsel's cpumap may have a different index space,
+        * and some operations need the index to modify
+        * the FD xyarray (e.g. open, close)
+        */
+       evlist__for_each_entry(evlist, pos)
+               pos->cpu_iter = 0;
+}
+
+bool evsel__cpu_iter_skip_no_inc(struct evsel *ev, int cpu)
+{
+       if (ev->cpu_iter >= ev->core.cpus->nr)
+               return true;
+       if (cpu >= 0 && ev->core.cpus->map[ev->cpu_iter] != cpu)
+               return true;
+       return false;
+}
+
+bool evsel__cpu_iter_skip(struct evsel *ev, int cpu)
+{
+       if (!evsel__cpu_iter_skip_no_inc(ev, cpu)) {
+               ev->cpu_iter++;
+               return false;
+       }
+       return true;
+}
+
 void evlist__disable(struct evlist *evlist)
 {
        struct evsel *pos;