1  // SPDX-License-Identifier: GPL-2.0
2  #include <errno.h>
3  #include <stdlib.h>
4  #include <string.h>
5  #include "evsel.h"
6  #include "counts.h"
7  #include <perf/threadmap.h>
8  #include <linux/zalloc.h>
9  
perf_counts__new(int ncpus,int nthreads)10  struct perf_counts *perf_counts__new(int ncpus, int nthreads)
11  {
12  	struct perf_counts *counts = zalloc(sizeof(*counts));
13  
14  	if (counts) {
15  		struct xyarray *values;
16  
17  		values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
18  		if (!values) {
19  			free(counts);
20  			return NULL;
21  		}
22  
23  		counts->values = values;
24  
25  		values = xyarray__new(ncpus, nthreads, sizeof(bool));
26  		if (!values) {
27  			xyarray__delete(counts->values);
28  			free(counts);
29  			return NULL;
30  		}
31  
32  		counts->loaded = values;
33  	}
34  
35  	return counts;
36  }
37  
perf_counts__delete(struct perf_counts * counts)38  void perf_counts__delete(struct perf_counts *counts)
39  {
40  	if (counts) {
41  		xyarray__delete(counts->loaded);
42  		xyarray__delete(counts->values);
43  		free(counts);
44  	}
45  }
46  
perf_counts__reset(struct perf_counts * counts)47  void perf_counts__reset(struct perf_counts *counts)
48  {
49  	xyarray__reset(counts->loaded);
50  	xyarray__reset(counts->values);
51  }
52  
evsel__reset_counts(struct evsel * evsel)53  void evsel__reset_counts(struct evsel *evsel)
54  {
55  	perf_counts__reset(evsel->counts);
56  }
57  
evsel__alloc_counts(struct evsel * evsel)58  int evsel__alloc_counts(struct evsel *evsel)
59  {
60  	struct perf_cpu_map *cpus = evsel__cpus(evsel);
61  	int nthreads = perf_thread_map__nr(evsel->core.threads);
62  
63  	evsel->counts = perf_counts__new(perf_cpu_map__nr(cpus), nthreads);
64  	return evsel->counts != NULL ? 0 : -ENOMEM;
65  }
66  
evsel__free_counts(struct evsel * evsel)67  void evsel__free_counts(struct evsel *evsel)
68  {
69  	perf_counts__delete(evsel->counts);
70  	evsel->counts = NULL;
71  }
72