systemctl: remove monitor command since it is mostly useless

2 files changed, 0 insertions, 240 deletions

diff --git a/man/systemctl.xml b/man/systemctl.xml
index fca19c6994..b60731ad56 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -759,16 +759,6 @@
                                 IDs. If no job id is specified, cancel all pending jobs.</para></listitem>
                         </varlistentry>
                         <varlistentry>
-                                <term><command>monitor</command></term>
-
-                                <listitem><para>Monitor unit/job
-                                changes. This is mostly useful for
-                                debugging purposes and prints a line
-                                each time systemd loads or unloads a
-                                unit configuration file, or a unit
-                                property changes.</para></listitem>
-                        </varlistentry>
-                        <varlistentry>
                                 <term><command>dump</command></term>
 
                                 <listitem><para>Dump server
diff --git a/src/systemctl.c b/src/systemctl.c
index d94105e93c..9f5ba8a202 100644
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -2692,234 +2692,6 @@ finish:
         return ret;
 }
 
-static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
-        DBusError error;
-        DBusMessage *m = NULL, *reply = NULL;
-
-        assert(connection);
-        assert(message);
-
-        dbus_error_init(&error);
-
-        log_debug("Got D-Bus request: %s.%s() on %s",
-                  dbus_message_get_interface(message),
-                  dbus_message_get_member(message),
-                  dbus_message_get_path(message));
-
-        if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
-                log_error("Warning! D-Bus connection terminated.");
-                dbus_connection_close(connection);
-
-        } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
-                   dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
-                const char *id, *path;
-
-                if (!dbus_message_get_args(message, &error,
-                                           DBUS_TYPE_STRING, &id,
-                                           DBUS_TYPE_OBJECT_PATH, &path,
-                                           DBUS_TYPE_INVALID))
-                        log_error("Failed to parse message: %s", bus_error_message(&error));
-                else if (streq(dbus_message_get_member(message), "UnitNew"))
-                        printf("Unit %s added.\n", id);
-                else
-                        printf("Unit %s removed.\n", id);
-
-        } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew")) {
-                uint32_t id;
-                const char *path;
-
-                if (!dbus_message_get_args(message, &error,
-                                           DBUS_TYPE_UINT32, &id,
-                                           DBUS_TYPE_OBJECT_PATH, &path,
-                                           DBUS_TYPE_INVALID))
-                        log_error("Failed to parse message: %s", bus_error_message(&error));
-                else
-                        printf("Job %u added.\n", id);
-
-
-        } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
-                uint32_t id;
-                const char *path, *result;
-
-                if (!dbus_message_get_args(message, &error,
-                                           DBUS_TYPE_UINT32, &id,
-                                           DBUS_TYPE_OBJECT_PATH, &path,
-                                           DBUS_TYPE_STRING, &result,
-                                           DBUS_TYPE_INVALID))
-                        log_error("Failed to parse message: %s", bus_error_message(&error));
-                else
-                        printf("Job %u removed (result=%s).\n", id, result);
-
-
-        } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
-
-                const char *path, *interface, *property = "Id";
-                DBusMessageIter iter, sub;
-
-                path = dbus_message_get_path(message);
-
-                if (!dbus_message_get_args(message, &error,
-                                          DBUS_TYPE_STRING, &interface,
-                                          DBUS_TYPE_INVALID)) {
-                        log_error("Failed to parse message: %s", bus_error_message(&error));
-                        goto finish;
-                }
-
-                if (!streq(interface, "org.freedesktop.systemd1.Job") &&
-                    !streq(interface, "org.freedesktop.systemd1.Unit"))
-                        goto finish;
-
-                if (!(m = dbus_message_new_method_call(
-                              "org.freedesktop.systemd1",
-                              path,
-                              "org.freedesktop.DBus.Properties",
-                              "Get"))) {
-                        log_error("Could not allocate message.");
-                        goto oom;
-                }
-
-                if (!dbus_message_append_args(m,
-                                              DBUS_TYPE_STRING, &interface,
-                                              DBUS_TYPE_STRING, &property,
-                                              DBUS_TYPE_INVALID)) {
-                        log_error("Could not append arguments to message.");
-                        goto finish;
-                }
-
-                if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
-                        log_error("Failed to issue method call: %s", bus_error_message(&error));
-                        goto finish;
-                }
-
-                if (!dbus_message_iter_init(reply, &iter) ||
-                    dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)  {
-                        log_error("Failed to parse reply.");
-                        goto finish;
-                }
-
-                dbus_message_iter_recurse(&iter, &sub);
-
-                if (streq(interface, "org.freedesktop.systemd1.Unit")) {
-                        const char *id;
-
-                        if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING)  {
-                                log_error("Failed to parse reply.");
-                                goto finish;
-                        }
-
-                        dbus_message_iter_get_basic(&sub, &id);
-                        printf("Unit %s changed.\n", id);
-                } else {
-                        uint32_t id;
-
-                        if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32)  {
-                                log_error("Failed to parse reply.");
-                                goto finish;
-                        }
-
-                        dbus_message_iter_get_basic(&sub, &id);
-                        printf("Job %u changed.\n", id);
-                }
-        }
-
-finish:
-        if (m)
-                dbus_message_unref(m);
-
-        if (reply)
-                dbus_message_unref(reply);
-
-        dbus_error_free(&error);
-        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-
-oom:
-        if (m)
-                dbus_message_unref(m);
-
-        if (reply)
-                dbus_message_unref(reply);
-
-        dbus_error_free(&error);
-        return DBUS_HANDLER_RESULT_NEED_MEMORY;
-}
-
-static int monitor(DBusConnection *bus, char **args, unsigned n) {
-        DBusMessage *m = NULL, *reply = NULL;
-        DBusError error;
-        int r;
-
-        dbus_error_init(&error);
-
-        if (!private_bus) {
-                dbus_bus_add_match(bus,
-                                   "type='signal',"
-                                   "sender='org.freedesktop.systemd1',"
-                                   "interface='org.freedesktop.systemd1.Manager',"
-                                   "path='/org/freedesktop/systemd1'",
-                                   &error);
-
-                if (dbus_error_is_set(&error)) {
-                        log_error("Failed to add match: %s", bus_error_message(&error));
-                        r = -EIO;
-                        goto finish;
-                }
-
-                dbus_bus_add_match(bus,
-                                   "type='signal',"
-                                   "sender='org.freedesktop.systemd1',"
-                                   "interface='org.freedesktop.DBus.Properties',"
-                                   "member='PropertiesChanged'",
-                                   &error);
-
-                if (dbus_error_is_set(&error)) {
-                        log_error("Failed to add match: %s", bus_error_message(&error));
-                        r = -EIO;
-                        goto finish;
-                }
-        }
-
-        if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
-                log_error("Failed to add filter.");
-                r = -ENOMEM;
-                goto finish;
-        }
-
-        if (!(m = dbus_message_new_method_call(
-                              "org.freedesktop.systemd1",
-                              "/org/freedesktop/systemd1",
-                              "org.freedesktop.systemd1.Manager",
-                              "Subscribe"))) {
-                log_error("Could not allocate 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", bus_error_message(&error));
-                r = -EIO;
-                goto finish;
-        }
-
-        while (dbus_connection_read_write_dispatch(bus, -1))
-                ;
-
-        r = 0;
-
-finish:
-
-        /* This is slightly dirty, since we don't undo the filter or the matches. */
-
-        if (m)
-                dbus_message_unref(m);
-
-        if (reply)
-                dbus_message_unref(reply);
-
-        dbus_error_free(&error);
-
-        return r;
-}
-
 static int dump(DBusConnection *bus, char **args, unsigned n) {
         DBusMessage *m = NULL, *reply = NULL;
         DBusError error;
@@ -4293,7 +4065,6 @@ static int systemctl_help(void) {
                "  list-jobs                       List jobs\n"
                "  cancel [JOB...]                 Cancel all, one, or more jobs\n\n"
                "Status Commands:\n"
-               "  monitor                         Monitor unit/job changes\n"
                "  dump                            Dump server status\n"
                "  dot                             Dump dependency graph for dot(1)\n\n"
                "Snapshot Commands:\n"
@@ -5208,7 +4979,6 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError
                 { "check",                 MORE,  2, check_unit        },
                 { "show",                  MORE,  1, show              },
                 { "status",                MORE,  2, show              },
-                { "monitor",               EQUAL, 1, monitor           },
                 { "dump",                  EQUAL, 1, dump              },
                 { "dot",                   EQUAL, 1, dot               },
                 { "snapshot",              LESS,  2, snapshot          },