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-rw-r--r--tools/perf/util/counts.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c
new file mode 100644
index 000000000..582f3aeaf
--- /dev/null
+++ b/tools/perf/util/counts.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "evsel.h"
+#include "counts.h"
+#include <linux/zalloc.h>
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads)
+{
+ struct perf_counts *counts = zalloc(sizeof(*counts));
+
+ if (counts) {
+ struct xyarray *values;
+
+ values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
+ if (!values) {
+ free(counts);
+ return NULL;
+ }
+
+ counts->values = values;
+
+ values = xyarray__new(ncpus, nthreads, sizeof(bool));
+ if (!values) {
+ xyarray__delete(counts->values);
+ free(counts);
+ return NULL;
+ }
+
+ counts->loaded = values;
+ }
+
+ return counts;
+}
+
+void perf_counts__delete(struct perf_counts *counts)
+{
+ if (counts) {
+ xyarray__delete(counts->loaded);
+ xyarray__delete(counts->values);
+ free(counts);
+ }
+}
+
+void perf_counts__reset(struct perf_counts *counts)
+{
+ xyarray__reset(counts->loaded);
+ xyarray__reset(counts->values);
+ memset(&counts->aggr, 0, sizeof(struct perf_counts_values));
+}
+
+void evsel__reset_counts(struct evsel *evsel)
+{
+ perf_counts__reset(evsel->counts);
+}
+
+int evsel__alloc_counts(struct evsel *evsel, int ncpus, int nthreads)
+{
+ evsel->counts = perf_counts__new(ncpus, nthreads);
+ return evsel->counts != NULL ? 0 : -ENOMEM;
+}
+
+void evsel__free_counts(struct evsel *evsel)
+{
+ perf_counts__delete(evsel->counts);
+ evsel->counts = NULL;
+}