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authorLennart Poettering <lennart@poettering.net>2010-07-05 02:40:39 +0200
committerLennart Poettering <lennart@poettering.net>2010-07-05 02:40:39 +0200
commit61cbdc4b307718d74e8aa04875475aac2f8617ab (patch)
tree897b25bf1ef4809b0c2e67f65f3b1950c0be1978
parent74922904348e53a992af63c581d4ccd3317ccce0 (diff)
systemctl: implement 'status' command
-rw-r--r--man/systemctl.xml17
-rw-r--r--src/log.c4
-rw-r--r--src/systemctl.c254
-rw-r--r--src/util.h3
4 files changed, 264 insertions, 14 deletions
diff --git a/man/systemctl.xml b/man/systemctl.xml
index 1bd08da96b..c0b8d7927d 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -247,16 +247,25 @@
state to STDOUT.</para></listitem>
</varlistentry>
<varlistentry>
+ <term><command>status [NAME...]</command></term>
+
+ <listitem><para>Show short status
+ information about one or more
+ units. This shows terse runtime
+ information about
+ units.</para></listitem>
+ </varlistentry>
+ <varlistentry>
<term><command>show [NAME...|JOB...]</command></term>
- <listitem><para>Show information about
+ <listitem><para>Show properties of
one or more units, jobs or the manager
itself. If no argument is specified
- information about the manager will be
+ properties of the manager will be
shown. If a unit name is specified
- information about the unit is shown,
+ properties of the unit is shown,
and if a job id is specified
- information about the job is
+ properties of the job is
shown.</para></listitem>
</varlistentry>
<varlistentry>
diff --git a/src/log.c b/src/log.c
index a47285cb21..e67a5b3b43 100644
--- a/src/log.c
+++ b/src/log.c
@@ -227,10 +227,10 @@ static int write_to_console(
if (show_location)
IOVEC_SET_STRING(iovec[n++], location);
if (highlight)
- IOVEC_SET_STRING(iovec[n++], "\x1B[1;31m");
+ IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_ON);
IOVEC_SET_STRING(iovec[n++], buffer);
if (highlight)
- IOVEC_SET_STRING(iovec[n++], "\x1B[0m");
+ IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_OFF);
IOVEC_SET_STRING(iovec[n++], "\n");
if (writev(console_fd, iovec, n) < 0)
diff --git a/src/systemctl.c b/src/systemctl.c
index 1ad0c48a89..d32a688d84 100644
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -959,10 +959,227 @@ finish:
return r;
}
+typedef struct UnitStatusInfo {
+ const char *id;
+ const char *load_state;
+ const char *active_state;
+ const char *sub_state;
+
+ const char *description;
+
+ const char *fragment_path;
+ const char *default_control_group;
+
+ /* Service */
+ pid_t main_pid;
+ pid_t control_pid;
+ const char *status_text;
+ bool running;
+
+ usec_t start_timestamp;
+ usec_t exit_timestamp;
+
+ int exit_code, exit_status;
+
+ /* Socket */
+ unsigned n_accepted;
+ unsigned n_connections;
+
+ /* Device */
+ const char *sysfs_path;
+
+ /* Mount, Automount */
+ const char *where;
+
+ /* Swap */
+ const char *what;
+} UnitStatusInfo;
+
+static void print_status_info(UnitStatusInfo *i) {
+ assert(i);
+
+ /* This shows pretty information about a unit. See
+ * print_property() for a low-level property printer */
+
+ printf("%s", strna(i->id));
+
+ if (i->description && !streq_ptr(i->id, i->description))
+ printf(" - %s", i->description);
+
+ printf("\n");
+
+ if (i->fragment_path)
+ printf("\t Loaded: %s (%s)\n", strna(i->load_state), i->fragment_path);
+ else if (streq_ptr(i->load_state, "failed"))
+ printf("\t Loaded: " ANSI_HIGHLIGHT_ON "%s" ANSI_HIGHLIGHT_OFF "\n", strna(i->load_state));
+ else
+ printf("\t Loaded: %s\n", strna(i->load_state));
+
+ if (streq_ptr(i->active_state, "maintenance"))
+ printf("\t Active: " ANSI_HIGHLIGHT_ON "%s (%s)" ANSI_HIGHLIGHT_OFF "\n",
+ strna(i->active_state),
+ strna(i->sub_state));
+ else
+ printf("\t Active: %s (%s)\n",
+ strna(i->active_state),
+ strna(i->sub_state));
+
+ if (i->sysfs_path)
+ printf("\t Device: %s\n", i->sysfs_path);
+ else if (i->where)
+ printf("\t Where: %s\n", i->where);
+ else if (i->what)
+ printf("\t What: %s\n", i->what);
+
+ if (i->status_text)
+ printf("\t Status: \"%s\"\n", i->status_text);
+
+ if (i->id && endswith(i->id, ".socket"))
+ printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
+
+ if (i->main_pid > 0 || i->control_pid > 0) {
+ printf("\t");
+
+ if (i->main_pid > 0) {
+ printf(" Process: %u", (unsigned) i->main_pid);
+
+ if (i->running) {
+ char *t = NULL;
+ get_process_name(i->main_pid, &t);
+ if (t) {
+ printf(" (%s)", t);
+ free(t);
+ }
+ } else {
+ printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
+
+ if (i->exit_code == CLD_EXITED)
+ printf("status=%i", i->exit_status);
+ else
+ printf("signal=%s", strsignal(i->exit_status));
+ printf(")");
+ }
+ }
+
+ if (i->main_pid > 0 && i->control_pid > 0)
+ printf(";");
+
+ if (i->control_pid > 0) {
+ char *t = NULL;
+
+ printf(" Control: %u", (unsigned) i->control_pid);
+
+ get_process_name(i->control_pid, &t);
+ if (t) {
+ printf(" (%s)", t);
+ free(t);
+ }
+ }
+
+ printf("\n");
+ }
+
+ if (i->default_control_group)
+ printf("\t CGroup: %s\n", i->default_control_group);
+}
+
+static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (s[0]) {
+ if (streq(name, "Id"))
+ i->id = s;
+ else if (streq(name, "LoadState"))
+ i->load_state = s;
+ else if (streq(name, "ActiveState"))
+ i->active_state = s;
+ else if (streq(name, "SubState"))
+ i->sub_state = s;
+ else if (streq(name, "Description"))
+ i->description = s;
+ else if (streq(name, "FragmentPath"))
+ i->fragment_path = s;
+ else if (streq(name, "DefaultControlGroup"))
+ i->default_control_group = s;
+ else if (streq(name, "StatusText"))
+ i->status_text = s;
+ else if (streq(name, "SysFSPath"))
+ i->sysfs_path = s;
+ else if (streq(name, "Where"))
+ i->where = s;
+ else if (streq(name, "What"))
+ i->what = s;
+ }
+
+ break;
+ }
+
+ case DBUS_TYPE_UINT32: {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "MainPID")) {
+ if (u > 0) {
+ i->main_pid = (pid_t) u;
+ i->running = true;
+ }
+ } else if (streq(name, "ControlPID"))
+ i->control_pid = (pid_t) u;
+ else if (streq(name, "ExecMainPID")) {
+ if (u > 0)
+ i->main_pid = (pid_t) u;
+ } else if (streq(name, "NAccepted"))
+ i->n_accepted = u;
+ else if (streq(name, "NConnections"))
+ i->n_connections = u;
+
+ break;
+ }
+
+ case DBUS_TYPE_INT32: {
+ int32_t j;
+
+ dbus_message_iter_get_basic(iter, &j);
+
+ if (streq(name, "ExecMainCode"))
+ i->exit_code = (int) j;
+ else if (streq(name, "ExecMainStatus"))
+ i->exit_status = (int) j;
+
+ break;
+ }
+
+ case DBUS_TYPE_UINT64: {
+ uint64_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "ExecMainStartTimestamp"))
+ i->start_timestamp = (usec_t) u;
+ else if (streq(name, "ExecMainExitTimestamp"))
+ i->exit_timestamp = (usec_t) u;
+
+ break;
+ }
+ }
+
+ return 0;
+}
+
static int print_property(const char *name, DBusMessageIter *iter) {
assert(name);
assert(iter);
+ /* This is a low-level property printer, see
+ * print_status_info() for the nicer output */
+
if (arg_property && !streq(name, arg_property))
return 0;
@@ -1200,7 +1417,7 @@ static int print_property(const char *name, DBusMessageIter *iter) {
(unsigned) pid,
sigchld_code_to_string(code),
status,
- strna(code == CLD_EXITED ? NULL : strsignal(status)));
+ strempty(code == CLD_EXITED ? NULL : strsignal(status)));
}
printf(" }\n");
@@ -1220,16 +1437,19 @@ static int print_property(const char *name, DBusMessageIter *iter) {
return 0;
}
-static int show_one(DBusConnection *bus, const char *path) {
+static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
DBusMessage *m = NULL, *reply = NULL;
const char *interface = "";
int r;
DBusError error;
DBusMessageIter iter, sub, sub2, sub3;
+ UnitStatusInfo info;
assert(bus);
assert(path);
+ assert(new_line);
+ zero(info);
dbus_error_init(&error);
if (!(m = dbus_message_new_method_call(
@@ -1266,6 +1486,11 @@ static int show_one(DBusConnection *bus, const char *path) {
dbus_message_iter_recurse(&iter, &sub);
+ if (*new_line)
+ printf("\n");
+
+ *new_line = true;
+
while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
const char *name;
@@ -1291,7 +1516,12 @@ static int show_one(DBusConnection *bus, const char *path) {
dbus_message_iter_recurse(&sub2, &sub3);
- if (print_property(name, &sub3) < 0) {
+ if (show_properties)
+ r = print_property(name, &sub3);
+ else
+ r = status_property(name, &sub3, &info);
+
+ if (r < 0) {
log_error("Failed to parse reply.");
r = -EIO;
goto finish;
@@ -1300,6 +1530,9 @@ static int show_one(DBusConnection *bus, const char *path) {
dbus_message_iter_next(&sub);
}
+ if (!show_properties)
+ print_status_info(&info);
+
r = 0;
finish:
@@ -1319,17 +1552,20 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
int r;
DBusError error;
unsigned i;
+ bool show_properties, new_line = false;
assert(bus);
assert(args);
dbus_error_init(&error);
- if (n <= 1) {
+ show_properties = !streq(args[0], "status");
+
+ if (show_properties && n <= 1) {
/* If not argument is specified inspect the manager
* itself */
- r = show_one(bus, "/org/freedesktop/systemd1");
+ r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
goto finish;
}
@@ -1337,7 +1573,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
const char *path = NULL;
uint32_t id;
- if (safe_atou32(args[i], &id) < 0) {
+ if (!show_properties || safe_atou32(args[i], &id) < 0) {
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
@@ -1392,7 +1628,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
goto finish;
}
- if ((r = show_one(bus, path)) < 0)
+ if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
goto finish;
dbus_message_unref(m);
@@ -2098,7 +2334,8 @@ static int systemctl_help(void) {
" reload [NAME...] Reload one or more units\n"
" isolate [NAME] Start one unit and stop all others\n"
" check [NAME...] Check whether any of the passed units are active\n"
- " show [NAME...|JOB...] Show information about one or more units/jobs/manager\n"
+ " status [NAME...] Show status of one or more units\n"
+ " show [NAME...|JOB...] Show properties of one or more units/jobs/manager\n"
" load [NAME...] Load one or more units\n"
" list-jobs List jobs\n"
" cancel [JOB...] Cancel one or more jobs\n"
@@ -2780,6 +3017,7 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
{ "isolate", EQUAL, 2, start_unit },
{ "check", MORE, 2, check_unit },
{ "show", MORE, 1, show },
+ { "status", MORE, 2, show },
{ "monitor", EQUAL, 1, monitor },
{ "dump", EQUAL, 1, dump },
{ "snapshot", LESS, 2, snapshot },
diff --git a/src/util.h b/src/util.h
index 50bac6edf8..8c917148f6 100644
--- a/src/util.h
+++ b/src/util.h
@@ -59,6 +59,9 @@ typedef struct dual_timestamp {
#define FORMAT_TIMESTAMP_MAX 64
#define FORMAT_TIMESPAN_MAX 64
+#define ANSI_HIGHLIGHT_ON "\x1B[1;31m"
+#define ANSI_HIGHLIGHT_OFF "\x1B[0m"
+
usec_t now(clockid_t clock);
dual_timestamp* dual_timestamp_get(dual_timestamp *ts);