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
   7 int 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
  44 static 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
  71 int 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 }