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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2012 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <unistd.h>
#include "sd-bus.h"
#include "bus-util.h"
#include "fd-util.h"
#include "macro.h"
#include "util.h"
static int inhibit(sd_bus *bus, const char *what) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *who = "Test Tool", *reason = "Just because!", *mode = "block";
int fd;
int r;
r = sd_bus_call_method(bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"Inhibit",
&error,
&reply,
"ssss", what, who, reason, mode);
assert_se(r >= 0);
r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_UNIX_FD, &fd);
assert_se(r >= 0);
assert_se(fd >= 0);
return dup(fd);
}
static void print_inhibitors(sd_bus *bus) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *what, *who, *why, *mode;
uint32_t uid, pid;
unsigned n = 0;
int r;
r = sd_bus_call_method(bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"ListInhibitors",
&error,
&reply,
"");
assert_se(r >= 0);
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
assert_se(r >= 0);
while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
printf("what=<%s> who=<%s> why=<%s> mode=<%s> uid=<%"PRIu32"> pid=<%"PRIu32">\n",
what, who, why, mode, uid, pid);
n++;
}
assert_se(r >= 0);
printf("%u inhibitors\n", n);
}
int main(int argc, char*argv[]) {
_cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
int fd1, fd2;
int r;
r = sd_bus_open_system(&bus);
assert_se(r >= 0);
print_inhibitors(bus);
fd1 = inhibit(bus, "sleep");
assert_se(fd1 >= 0);
print_inhibitors(bus);
fd2 = inhibit(bus, "idle:shutdown");
assert_se(fd2 >= 0);
print_inhibitors(bus);
safe_close(fd1);
sleep(1);
print_inhibitors(bus);
safe_close(fd2);
sleep(1);
print_inhibitors(bus);
return 0;
}
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