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https://github.com/systemd/systemd.git
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117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <dbus/dbus.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "manager.h"
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#include "log.h"
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#include "mount-setup.h"
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int main(int argc, char *argv[]) {
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Manager *m = NULL;
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Unit *target = NULL;
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Job *job = NULL;
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int r, retval = 1;
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const char *default_unit;
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if (argc >= 2)
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default_unit = argv[1];
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else
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default_unit = SPECIAL_DEFAULT_TARGET;
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/* Move out of the way, so that we won't block unmounts */
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assert_se(chdir("/") == 0);
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/* Reset all signal handlers. */
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assert_se(reset_all_signal_handlers() == 0);
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/* Become a session leader if we aren't one yet. */
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setsid();
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/* Disable the umask logic */
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umask(0);
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/* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */
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dbus_connection_set_change_sigpipe(FALSE);
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/* Mount /dev, /sys and friends */
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mount_setup();
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/* Set up logging */
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log_set_target(LOG_TARGET_CONSOLE);
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/* Open the logging devices, if possible and necessary*/
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log_open_syslog();
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log_open_kmsg();
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if ((r = manager_new(&m)) < 0) {
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log_error("Failed to allocate manager object: %s", strerror(-r));
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goto finish;
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}
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if ((r = manager_coldplug(m)) < 0) {
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log_error("Failed to retrieve coldplug information: %s", strerror(-r));
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goto finish;
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}
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log_debug("Activating default unit: %s", default_unit);
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if ((r = manager_load_unit(m, default_unit, &target)) < 0) {
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log_error("Failed to load default target: %s", strerror(-r));
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goto finish;
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}
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printf("→ By units:\n");
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manager_dump_units(m, stdout, "\t");
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if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &job)) < 0) {
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log_error("Failed to start default target: %s", strerror(-r));
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goto finish;
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}
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printf("→ By jobs:\n");
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manager_dump_jobs(m, stdout, "\t");
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if ((r = manager_loop(m)) < 0) {
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log_error("Failed to run mainloop: %s", strerror(-r));
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goto finish;
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}
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retval = 0;
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finish:
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if (m)
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manager_free(m);
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log_debug("Exit.");
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dbus_shutdown();
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return retval;
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}
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