LXR linux/tools/perf/tests/thread-map.c

   1#include <sys/types.h>
   2#include <unistd.h>
   3#include "tests.h"
   4#include "thread_map.h"
   5#include "debug.h"
   6
   7int test__thread_map(int subtest __maybe_unused)
   8{
   9        struct thread_map *map;
  10
  11        /* test map on current pid */
  12        map = thread_map__new_by_pid(getpid());
  13        TEST_ASSERT_VAL("failed to alloc map", map);
  14
  15        thread_map__read_comms(map);
  16
  17        TEST_ASSERT_VAL("wrong nr", map->nr == 1);
  18        TEST_ASSERT_VAL("wrong pid",
  19                        thread_map__pid(map, 0) == getpid());
  20        TEST_ASSERT_VAL("wrong comm",
  21                        thread_map__comm(map, 0) &&
  22                        !strcmp(thread_map__comm(map, 0), "perf"));
  23        TEST_ASSERT_VAL("wrong refcnt",
  24                        atomic_read(&map->refcnt) == 1);
  25        thread_map__put(map);
  26
  27        /* test dummy pid */
  28        map = thread_map__new_dummy();
  29        TEST_ASSERT_VAL("failed to alloc map", map);
  30
  31        thread_map__read_comms(map);
  32
  33        TEST_ASSERT_VAL("wrong nr", map->nr == 1);
  34        TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == -1);
  35        TEST_ASSERT_VAL("wrong comm",
  36                        thread_map__comm(map, 0) &&
  37                        !strcmp(thread_map__comm(map, 0), "dummy"));
  38        TEST_ASSERT_VAL("wrong refcnt",
  39                        atomic_read(&map->refcnt) == 1);
  40        thread_map__put(map);
  41        return 0;
  42}
  43
  44static int process_event(struct perf_tool *tool __maybe_unused,
  45                         union perf_event *event,
  46                         struct perf_sample *sample __maybe_unused,
  47                         struct machine *machine __maybe_unused)
  48{
  49        struct thread_map_event *map = &event->thread_map;
  50        struct thread_map *threads;
  51
  52        TEST_ASSERT_VAL("wrong nr",   map->nr == 1);
  53        TEST_ASSERT_VAL("wrong pid",  map->entries[0].pid == (u64) getpid());
  54        TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, "perf"));
  55
  56        threads = thread_map__new_event(&event->thread_map);
  57        TEST_ASSERT_VAL("failed to alloc map", threads);
  58
  59        TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
  60        TEST_ASSERT_VAL("wrong pid",
  61                        thread_map__pid(threads, 0) == getpid());
  62        TEST_ASSERT_VAL("wrong comm",
  63                        thread_map__comm(threads, 0) &&
  64                        !strcmp(thread_map__comm(threads, 0), "perf"));
  65        TEST_ASSERT_VAL("wrong refcnt",
  66                        atomic_read(&threads->refcnt) == 1);
  67        thread_map__put(threads);
  68        return 0;
  69}
  70
  71int test__thread_map_synthesize(int subtest __maybe_unused)
  72{
  73        struct thread_map *threads;
  74
  75        /* test map on current pid */
  76        threads = thread_map__new_by_pid(getpid());
  77        TEST_ASSERT_VAL("failed to alloc map", threads);
  78
  79        thread_map__read_comms(threads);
  80
  81        TEST_ASSERT_VAL("failed to synthesize map",
  82                !perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));
  83
  84        return 0;
  85}
  86