tools/perf/util/counts.c

   1 #include <errno.h>
   2 #include <stdlib.h>
   3 #include "evsel.h"
   4 #include "counts.h"
   5 #include "util.h"
   6
   7 struct perf_counts *perf_counts__new(int ncpus, int nthreads)
   8 {
   9         struct perf_counts *counts = zalloc(sizeof(*counts));
  10
  11         if (counts) {
  12                 struct xyarray *values;
  13
  14                 values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
  15                 if (!values) {
  16                         free(counts);
  17                         return NULL;
  18                 }
  19
  20                 counts->values = values;
  21         }
  22
  23         return counts;
  24 }
  25
  26 void perf_counts__delete(struct perf_counts *counts)
  27 {
  28         if (counts) {
  29                 xyarray__delete(counts->values);
  30                 free(counts);
  31         }
  32 }
  33
  34 static void perf_counts__reset(struct perf_counts *counts)
  35 {
  36         xyarray__reset(counts->values);
  37 }
  38
  39 void perf_evsel__reset_counts(struct perf_evsel *evsel)
  40 {
  41         perf_counts__reset(evsel->counts);
  42 }
  43
  44 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
  45 {
  46         evsel->counts = perf_counts__new(ncpus, nthreads);
  47         return evsel->counts != NULL ? 0 : -ENOMEM;
  48 }
  49
  50 void perf_evsel__free_counts(struct perf_evsel *evsel)
  51 {
  52         perf_counts__delete(evsel->counts);
  53         evsel->counts = NULL;
  54 }