src/test/test-watch-pid.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "log.h"
   4 #include "manager.h"
   5 #include "rm-rf.h"
   6 #include "test-helper.h"
   7 #include "tests.h"
   8
   9 int main(int argc, char *argv[]) {
  10         _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
  11         _cleanup_(manager_freep) Manager *m = NULL;
  12         Unit *a, *b, *c, *u;
  13         int r;
  14
  15         log_set_max_level(LOG_DEBUG);
  16         log_parse_environment();
  17         log_open();
  18
  19         if (getuid() != 0) {
  20                 log_notice("Not running as root, skipping kernel related tests.");
  21                 return EXIT_TEST_SKIP;
  22         }
  23
  24         r = enter_cgroup_subroot();
  25         if (r == -ENOMEDIUM) {
  26                 log_notice("cgroupfs not available, skipping tests");
  27                 return EXIT_TEST_SKIP;
  28         }
  29
  30         assert_se(set_unit_path(get_testdata_dir("")) >= 0);
  31         assert_se(runtime_dir = setup_fake_runtime_dir());
  32
  33         assert_se(manager_new(UNIT_FILE_USER, true, &m) >= 0);
  34         assert_se(manager_startup(m, NULL, NULL) >= 0);
  35
  36         assert_se(a = unit_new(m, sizeof(Service)));
  37         assert_se(unit_add_name(a, "a.service") >= 0);
  38         assert_se(set_isempty(a->pids));
  39
  40         assert_se(b = unit_new(m, sizeof(Service)));
  41         assert_se(unit_add_name(b, "b.service") >= 0);
  42         assert_se(set_isempty(b->pids));
  43
  44         assert_se(c = unit_new(m, sizeof(Service)));
  45         assert_se(unit_add_name(c, "c.service") >= 0);
  46         assert_se(set_isempty(c->pids));
  47
  48         assert_se(hashmap_isempty(m->watch_pids));
  49         assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
  50
  51         assert_se(unit_watch_pid(a, 4711) >= 0);
  52         assert_se(manager_get_unit_by_pid(m, 4711) == a);
  53
  54         assert_se(unit_watch_pid(a, 4711) >= 0);
  55         assert_se(manager_get_unit_by_pid(m, 4711) == a);
  56
  57         assert_se(unit_watch_pid(b, 4711) >= 0);
  58         u = manager_get_unit_by_pid(m, 4711);
  59         assert_se(u == a || u == b);
  60
  61         assert_se(unit_watch_pid(b, 4711) >= 0);
  62         u = manager_get_unit_by_pid(m, 4711);
  63         assert_se(u == a || u == b);
  64
  65         assert_se(unit_watch_pid(c, 4711) >= 0);
  66         u = manager_get_unit_by_pid(m, 4711);
  67         assert_se(u == a || u == b || u == c);
  68
  69         assert_se(unit_watch_pid(c, 4711) >= 0);
  70         u = manager_get_unit_by_pid(m, 4711);
  71         assert_se(u == a || u == b || u == c);
  72
  73         unit_unwatch_pid(b, 4711);
  74         u = manager_get_unit_by_pid(m, 4711);
  75         assert_se(u == a || u == c);
  76
  77         unit_unwatch_pid(b, 4711);
  78         u = manager_get_unit_by_pid(m, 4711);
  79         assert_se(u == a || u == c);
  80
  81         unit_unwatch_pid(a, 4711);
  82         assert_se(manager_get_unit_by_pid(m, 4711) == c);
  83
  84         unit_unwatch_pid(a, 4711);
  85         assert_se(manager_get_unit_by_pid(m, 4711) == c);
  86
  87         unit_unwatch_pid(c, 4711);
  88         assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
  89
  90         unit_unwatch_pid(c, 4711);
  91         assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
  92
  93         return 0;
  94 }