xref: /openbmc/linux/tools/perf/util/counts.c (revision 8795a739)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <errno.h>
3 #include <stdlib.h>
4 #include "evsel.h"
5 #include "counts.h"
6 #include <linux/zalloc.h>
7 
8 struct perf_counts *perf_counts__new(int ncpus, int nthreads)
9 {
10 	struct perf_counts *counts = zalloc(sizeof(*counts));
11 
12 	if (counts) {
13 		struct xyarray *values;
14 
15 		values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
16 		if (!values) {
17 			free(counts);
18 			return NULL;
19 		}
20 
21 		counts->values = values;
22 
23 		values = xyarray__new(ncpus, nthreads, sizeof(bool));
24 		if (!values) {
25 			xyarray__delete(counts->values);
26 			free(counts);
27 			return NULL;
28 		}
29 
30 		counts->loaded = values;
31 	}
32 
33 	return counts;
34 }
35 
36 void perf_counts__delete(struct perf_counts *counts)
37 {
38 	if (counts) {
39 		xyarray__delete(counts->loaded);
40 		xyarray__delete(counts->values);
41 		free(counts);
42 	}
43 }
44 
45 static void perf_counts__reset(struct perf_counts *counts)
46 {
47 	xyarray__reset(counts->loaded);
48 	xyarray__reset(counts->values);
49 }
50 
51 void perf_evsel__reset_counts(struct evsel *evsel)
52 {
53 	perf_counts__reset(evsel->counts);
54 }
55 
56 int perf_evsel__alloc_counts(struct evsel *evsel, int ncpus, int nthreads)
57 {
58 	evsel->counts = perf_counts__new(ncpus, nthreads);
59 	return evsel->counts != NULL ? 0 : -ENOMEM;
60 }
61 
62 void perf_evsel__free_counts(struct evsel *evsel)
63 {
64 	perf_counts__delete(evsel->counts);
65 	evsel->counts = NULL;
66 }
67