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 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 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 47 void perf_counts__reset(struct perf_counts *counts) 48 { 49 xyarray__reset(counts->loaded); 50 xyarray__reset(counts->values); 51 } 52 53 void evsel__reset_counts(struct evsel *evsel) 54 { 55 perf_counts__reset(evsel->counts); 56 } 57 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 67 void evsel__free_counts(struct evsel *evsel) 68 { 69 perf_counts__delete(evsel->counts); 70 evsel->counts = NULL; 71 } 72