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systemctl: implement delete command

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This commit is contained in:
Lennart Poettering 2010-07-02 03:51:05 +02:00
parent eec575d8eb
commit 6759e7a763
2 changed files with 92 additions and 0 deletions
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7
man/systemctl.xml
View File

@ -331,6 +331,13 @@
state. Snapshots are dynamic and lost
on reboot.</para>
</varlistentry>
<varlistentry>
<term><command>delete [NAME...]</command></term>
<listitem><para>Remove a snapshot
previously created with
<command>snapshot</command>.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>daemon-reload</command></term>

85
src/systemctl.c
View File

@ -1363,6 +1363,89 @@ finish:
return r;
}
static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
int r;
DBusError error;
unsigned i;
assert(bus);
assert(args);
dbus_error_init(&error);
for (i = 1; i < n; i++) {
const char *path = NULL;
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetUnit"))) {
log_error("Could not allocate message.");
r = -ENOMEM;
goto finish;
}
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &args[i],
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", error.message);
r = -EIO;
goto finish;
}
if (!dbus_message_get_args(reply, &error,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
log_error("Failed to parse reply: %s", error.message);
r = -EIO;
goto finish;
}
dbus_message_unref(m);
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Snapshot",
"Remove"))) {
log_error("Could not allocate message.");
r = -ENOMEM;
goto finish;
}
dbus_message_unref(reply);
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", error.message);
r = -EIO;
goto finish;
}
dbus_message_unref(m);
dbus_message_unref(reply);
m = reply = NULL;
}
r = 0;
finish:
if (m)
dbus_message_unref(m);
if (reply)
dbus_message_unref(reply);
dbus_error_free(&error);
return r;
}
static int clear_jobs(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
DBusError error;
@ -1597,6 +1680,7 @@ static int systemctl_help(void) {
" monitor Monitor unit/job changes\n"
" dump Dump server status\n"
" snapshot [NAME] Create a snapshot\n"
" delete [NAME...] Remove one or more snapshots\n"
" daemon-reload Reload systemd manager configuration\n"
" daemon-reexec Reexecute systemd manager\n"
" daemon-exit Ask the systemd manager to quit\n"
@ -2262,6 +2346,7 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
{ "monitor", EQUAL, 1, monitor },
{ "dump", EQUAL, 1, dump },
{ "snapshot", LESS, 2, snapshot },
{ "delete", MORE, 2, delete_snapshot },
{ "daemon-reload", EQUAL, 1, clear_jobs },
{ "daemon-reexec", EQUAL, 1, clear_jobs },
{ "daemon-exit", EQUAL, 1, clear_jobs },