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perf stat: Introduce perf_counts__(new|delete|reset) functions

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Move 'struct perf_counts' allocation|free|reset code into separate
functions.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1434269985-521-13-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2015-06-14 10:19:27 +02:00
committed by Arnaldo Carvalho de Melo
parent a9a3a4d92d
commit 9df38e82e2
3 changed files with 33 additions and 17 deletions
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28
tools/perf/util/stat.c
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@@ -95,20 +95,38 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel)
}
}
struct perf_counts *perf_counts__new(int ncpus)
{
int size = sizeof(struct perf_counts) +
ncpus * sizeof(struct perf_counts_values);
return zalloc(size);
}
void perf_counts__delete(struct perf_counts *counts)
{
free(counts);
}
static void perf_counts__reset(struct perf_counts *counts, int ncpus)
{
memset(counts, 0, (sizeof(*counts) +
(ncpus * sizeof(struct perf_counts_values))));
}
void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus)
{
memset(evsel->counts, 0, (sizeof(*evsel->counts) +
(ncpus * sizeof(struct perf_counts_values))));
perf_counts__reset(evsel->counts, ncpus);
}
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus)
{
evsel->counts = zalloc((sizeof(*evsel->counts) +
(ncpus * sizeof(struct perf_counts_values))));
evsel->counts = perf_counts__new(ncpus);
return evsel->counts != NULL ? 0 : -ENOMEM;
}
void perf_evsel__free_counts(struct perf_evsel *evsel)
{
zfree(&evsel->counts);
perf_counts__delete(evsel->counts);
evsel->counts = NULL;
}