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systemctl: add new "is-system-running" command to check whether system is fully up 

https://bugs.freedesktop.org/show_bug.cgi?id=66926
This commit is contained in:
Lennart Poettering 2014-06-25 12:31:03 +02:00
parent e8a152c62d
commit 99813a1912
2 changed files with 43 additions and 0 deletions
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17
man/systemctl.xml
View File

@ -288,6 +288,8 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
<command>snapshot</command>,
<command>is-active</command>,
<command>is-failed</command>,
<command>is-enabled</command>,
<command>is-system-running</command>,
<command>enable</command> and
<command>disable</command>.</para>
</listitem>
@ -1299,6 +1301,20 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
<title>System Commands</title>
<variablelist>
<varlistentry>
<term><command>is-system-running</command></term>
<listitem>
<para>Checks whether the system is running. This returns
success when the system is fully up and running, meaning
not in startup, shutdown or maintainance mode. Failure is
returned otherwise. In addition, the current state is
printed in a short string to standard output. Use
<option>--quiet</option> to suppress output of this state
string.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><command>default</command></term>
@ -1307,6 +1323,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
<command>isolate default.target</command>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><command>rescue</command></term>

26
src/systemctl/systemctl.c
View File

@ -5462,6 +5462,30 @@ static int unit_is_enabled(sd_bus *bus, char **args) {
return !enabled;
}
static int is_system_running(sd_bus *bus, char **args) {
_cleanup_free_ char *state = NULL;
int r;
r = sd_bus_get_property_string(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SystemState",
NULL,
&state);
if (r < 0) {
if (!arg_quiet)
puts("unknown");
return 0;
}
if (!arg_quiet)
puts(state);
return streq(state, "running") ? EXIT_SUCCESS : EXIT_FAILURE;
}
static int systemctl_help(void) {
pager_open_if_enabled();
@ -5573,6 +5597,7 @@ static int systemctl_help(void) {
" daemon-reload Reload systemd manager configuration\n"
" daemon-reexec Reexecute systemd manager\n\n"
"System Commands:\n"
" is-system-running Check whether system is fully running\n"
" default Enter system default mode\n"
" rescue Enter system rescue mode\n"
" emergency Enter system emergency mode\n"
@ -6576,6 +6601,7 @@ static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
{ "set-default", EQUAL, 2, set_default, NOBUS },
{ "get-default", EQUAL, 1, get_default, NOBUS },
{ "set-property", MORE, 3, set_property },
{ "is-system-running", EQUAL, 1, is_system_running },
{}
}, *verb = verbs;