src/test/test-sched-prio.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2012 Holger Hans Peter Freyther
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <sched.h>
  21
  22 #include "macro.h"
  23 #include "manager.h"
  24 #include "test-helper.h"
  25
  26 int main(int argc, char *argv[]) {
  27         Manager *m = NULL;
  28         Unit *idle_ok, *idle_bad, *rr_ok, *rr_bad, *rr_sched;
  29         Service *ser;
  30         FILE *serial = NULL;
  31         FDSet *fdset = NULL;
  32         int r;
  33
  34         /* prepare the test */
  35         assert_se(set_unit_path(TEST_DIR) >= 0);
  36         r = manager_new(UNIT_FILE_USER, true, &m);
  37         if (MANAGER_SKIP_TEST(r)) {
  38                 printf("Skipping test: manager_new: %s\n", strerror(-r));
  39                 return EXIT_TEST_SKIP;
  40         }
  41         assert_se(r >= 0);
  42         assert_se(manager_startup(m, serial, fdset) >= 0);
  43
  44         /* load idle ok */
  45         assert_se(manager_load_unit(m, "sched_idle_ok.service", NULL, NULL, &idle_ok) >= 0);
  46         assert_se(idle_ok->load_state == UNIT_LOADED);
  47         ser = SERVICE(idle_ok);
  48         assert_se(ser->exec_context.cpu_sched_policy == SCHED_OTHER);
  49         assert_se(ser->exec_context.cpu_sched_priority == 0);
  50
  51         /*
  52          * load idle bad. This should print a warning but we have no way to look at it.
  53          */
  54         assert_se(manager_load_unit(m, "sched_idle_bad.service", NULL, NULL, &idle_bad) >= 0);
  55         assert_se(idle_bad->load_state == UNIT_LOADED);
  56         ser = SERVICE(idle_ok);
  57         assert_se(ser->exec_context.cpu_sched_policy == SCHED_OTHER);
  58         assert_se(ser->exec_context.cpu_sched_priority == 0);
  59
  60         /*
  61          * load rr ok.
  62          * Test that the default priority is moving from 0 to 1.
  63          */
  64         assert_se(manager_load_unit(m, "sched_rr_ok.service", NULL, NULL, &rr_ok) >= 0);
  65         assert_se(rr_ok->load_state == UNIT_LOADED);
  66         ser = SERVICE(rr_ok);
  67         assert_se(ser->exec_context.cpu_sched_policy == SCHED_RR);
  68         assert_se(ser->exec_context.cpu_sched_priority == 1);
  69
  70         /*
  71          * load rr bad.
  72          * Test that the value of 0 and 100 is ignored.
  73          */
  74         assert_se(manager_load_unit(m, "sched_rr_bad.service", NULL, NULL, &rr_bad) >= 0);
  75         assert_se(rr_bad->load_state == UNIT_LOADED);
  76         ser = SERVICE(rr_bad);
  77         assert_se(ser->exec_context.cpu_sched_policy == SCHED_RR);
  78         assert_se(ser->exec_context.cpu_sched_priority == 1);
  79
  80         /*
  81          * load rr change.
  82          * Test that anything between 1 and 99 can be set.
  83          */
  84         assert_se(manager_load_unit(m, "sched_rr_change.service", NULL, NULL, &rr_sched) >= 0);
  85         assert_se(rr_sched->load_state == UNIT_LOADED);
  86         ser = SERVICE(rr_sched);
  87         assert_se(ser->exec_context.cpu_sched_policy == SCHED_RR);
  88         assert_se(ser->exec_context.cpu_sched_priority == 99);
  89
  90         manager_free(m);
  91
  92         return EXIT_SUCCESS;
  93 }