event_update.c

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// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include "evlist.h"
#include "evsel.h"
#include "machine.h"
#include "tests.h"
#include "debug.h"

static int process_event_unit(struct perf_tool *tool __maybe_unused,
                  union perf_event *event,
                  struct perf_sample *sample __maybe_unused,
                  struct machine *machine __maybe_unused)
{
    struct event_update_event *ev = (struct event_update_event *) event;

    TEST_ASSERT_VAL("wrong id", ev->id == 123);
    TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__UNIT);
    TEST_ASSERT_VAL("wrong unit", !strcmp(ev->data, "KRAVA"));
    return 0;
}

static int process_event_scale(struct perf_tool *tool __maybe_unused,
                   union perf_event *event,
                   struct perf_sample *sample __maybe_unused,
                   struct machine *machine __maybe_unused)
{
    struct event_update_event *ev = (struct event_update_event *) event;
    struct event_update_event_scale *ev_data;

    ev_data = (struct event_update_event_scale *) ev->data;

    TEST_ASSERT_VAL("wrong id", ev->id == 123);
    TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
    TEST_ASSERT_VAL("wrong scale", ev_data->scale == 0.123);
    return 0;
}

struct event_name {
    struct perf_tool tool;
    const char *name;
};

static int process_event_name(struct perf_tool *tool,
                  union perf_event *event,
                  struct perf_sample *sample __maybe_unused,
                  struct machine *machine __maybe_unused)
{
    struct event_name *tmp = container_of(tool, struct event_name, tool);
    struct event_update_event *ev = (struct event_update_event*) event;

    TEST_ASSERT_VAL("wrong id", ev->id == 123);
    TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
    TEST_ASSERT_VAL("wrong name", !strcmp(ev->data, tmp->name));
    return 0;
}

static int process_event_cpus(struct perf_tool *tool __maybe_unused,
                  union perf_event *event,
                  struct perf_sample *sample __maybe_unused,
                  struct machine *machine __maybe_unused)
{
    struct event_update_event *ev = (struct event_update_event*) event;
    struct event_update_event_cpus *ev_data;
    struct cpu_map *map;

    ev_data = (struct event_update_event_cpus*) ev->data;

    map = cpu_map__new_data(&ev_data->cpus);

    TEST_ASSERT_VAL("wrong id", ev->id == 123);
    TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
    TEST_ASSERT_VAL("wrong cpus", map->nr == 3);
    TEST_ASSERT_VAL("wrong cpus", map->map[0] == 1);
    TEST_ASSERT_VAL("wrong cpus", map->map[1] == 2);
    TEST_ASSERT_VAL("wrong cpus", map->map[2] == 3);
    cpu_map__put(map);
    return 0;
}

int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unused)
{
    struct perf_evlist *evlist;
    struct perf_evsel *evsel;
    struct event_name tmp;

    evlist = perf_evlist__new_default();
    TEST_ASSERT_VAL("failed to get evlist", evlist);

    evsel = perf_evlist__first(evlist);

    TEST_ASSERT_VAL("failed to allos ids",
            !perf_evsel__alloc_id(evsel, 1, 1));

    perf_evlist__id_add(evlist, evsel, 0, 0, 123);

    evsel->unit = strdup("KRAVA");

    TEST_ASSERT_VAL("failed to synthesize attr update unit",
            !perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));

    evsel->scale = 0.123;

    TEST_ASSERT_VAL("failed to synthesize attr update scale",
            !perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));

    tmp.name = perf_evsel__name(evsel);

    TEST_ASSERT_VAL("failed to synthesize attr update name",
            !perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));

    evsel->own_cpus = cpu_map__new("1,2,3");

    TEST_ASSERT_VAL("failed to synthesize attr update cpus",
            !perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));

    cpu_map__put(evsel->own_cpus);
    return 0;
}