src/login/test-inhibit.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <unistd.h>
   4
   5 #include "sd-bus.h"
   6
   7 #include "bus-util.h"
   8 #include "fd-util.h"
   9 #include "macro.h"
  10 #include "util.h"
  11
  12 static int inhibit(sd_bus *bus, const char *what) {
  13         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
  14         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
  15         const char *who = "Test Tool", *reason = "Just because!", *mode = "block";
  16         int fd;
  17         int r;
  18
  19         r = sd_bus_call_method(bus,
  20                         "org.freedesktop.login1",
  21                         "/org/freedesktop/login1",
  22                         "org.freedesktop.login1.Manager",
  23                         "Inhibit",
  24                         &error,
  25                         &reply,
  26                         "ssss", what, who, reason, mode);
  27         assert_se(r >= 0);
  28
  29         r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_UNIX_FD, &fd);
  30         assert_se(r >= 0);
  31         assert_se(fd >= 0);
  32
  33         return dup(fd);
  34 }
  35
  36 static void print_inhibitors(sd_bus *bus) {
  37         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
  38         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
  39         const char *what, *who, *why, *mode;
  40         uint32_t uid, pid;
  41         unsigned n = 0;
  42         int r;
  43
  44         r = sd_bus_call_method(bus,
  45                         "org.freedesktop.login1",
  46                         "/org/freedesktop/login1",
  47                         "org.freedesktop.login1.Manager",
  48                         "ListInhibitors",
  49                         &error,
  50                         &reply,
  51                         "");
  52         assert_se(r >= 0);
  53
  54         r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
  55         assert_se(r >= 0);
  56
  57         while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
  58                 printf("what=<%s> who=<%s> why=<%s> mode=<%s> uid=<%"PRIu32"> pid=<%"PRIu32">\n",
  59                        what, who, why, mode, uid, pid);
  60
  61                 n++;
  62         }
  63         assert_se(r >= 0);
  64
  65         printf("%u inhibitors\n", n);
  66 }
  67
  68 int main(int argc, char *argv[]) {
  69         _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
  70         int fd1, fd2;
  71         int r;
  72
  73         r = sd_bus_open_system(&bus);
  74         assert_se(r >= 0);
  75
  76         print_inhibitors(bus);
  77
  78         fd1 = inhibit(bus, "sleep");
  79         assert_se(fd1 >= 0);
  80         print_inhibitors(bus);
  81
  82         fd2 = inhibit(bus, "idle:shutdown");
  83         assert_se(fd2 >= 0);
  84         print_inhibitors(bus);
  85
  86         safe_close(fd1);
  87         sleep(1);
  88         print_inhibitors(bus);
  89
  90         safe_close(fd2);
  91         sleep(1);
  92         print_inhibitors(bus);
  93
  94         return 0;
  95 }