kernel/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(void)
   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 }