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 "service.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         test_setup_logging(LOG_DEBUG);
  16
  17         if (getuid() != 0)
  18                 return log_tests_skipped("not root");
  19         r = enter_cgroup_subroot(NULL);
  20         if (r == -ENOMEDIUM)
  21                 return log_tests_skipped("cgroupfs not available");
  22
  23         assert_se(set_unit_path(get_testdata_dir()) >= 0);
  24         assert_se(runtime_dir = setup_fake_runtime_dir());
  25
  26         assert_se(manager_new(UNIT_FILE_USER, MANAGER_TEST_RUN_BASIC, &m) >= 0);
  27         assert_se(manager_startup(m, NULL, NULL) >= 0);
  28
  29         assert_se(a = unit_new(m, sizeof(Service)));
  30         assert_se(unit_add_name(a, "a.service") >= 0);
  31         assert_se(set_isempty(a->pids));
  32
  33         assert_se(b = unit_new(m, sizeof(Service)));
  34         assert_se(unit_add_name(b, "b.service") >= 0);
  35         assert_se(set_isempty(b->pids));
  36
  37         assert_se(c = unit_new(m, sizeof(Service)));
  38         assert_se(unit_add_name(c, "c.service") >= 0);
  39         assert_se(set_isempty(c->pids));
  40
  41         assert_se(hashmap_isempty(m->watch_pids));
  42         assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
  43
  44         assert_se(unit_watch_pid(a, 4711, false) >= 0);
  45         assert_se(manager_get_unit_by_pid(m, 4711) == a);
  46
  47         assert_se(unit_watch_pid(a, 4711, false) >= 0);
  48         assert_se(manager_get_unit_by_pid(m, 4711) == a);
  49
  50         assert_se(unit_watch_pid(b, 4711, false) >= 0);
  51         u = manager_get_unit_by_pid(m, 4711);
  52         assert_se(u == a || u == b);
  53
  54         assert_se(unit_watch_pid(b, 4711, false) >= 0);
  55         u = manager_get_unit_by_pid(m, 4711);
  56         assert_se(u == a || u == b);
  57
  58         assert_se(unit_watch_pid(c, 4711, false) >= 0);
  59         u = manager_get_unit_by_pid(m, 4711);
  60         assert_se(u == a || u == b || u == c);
  61
  62         assert_se(unit_watch_pid(c, 4711, false) >= 0);
  63         u = manager_get_unit_by_pid(m, 4711);
  64         assert_se(u == a || u == b || u == c);
  65
  66         unit_unwatch_pid(b, 4711);
  67         u = manager_get_unit_by_pid(m, 4711);
  68         assert_se(u == a || u == c);
  69
  70         unit_unwatch_pid(b, 4711);
  71         u = manager_get_unit_by_pid(m, 4711);
  72         assert_se(u == a || u == c);
  73
  74         unit_unwatch_pid(a, 4711);
  75         assert_se(manager_get_unit_by_pid(m, 4711) == c);
  76
  77         unit_unwatch_pid(a, 4711);
  78         assert_se(manager_get_unit_by_pid(m, 4711) == c);
  79
  80         unit_unwatch_pid(c, 4711);
  81         assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
  82
  83         unit_unwatch_pid(c, 4711);
  84         assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
  85
  86         return 0;
  87 }