From 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 10 Apr 2024 22:49:52 +0200
Subject: Adding upstream version 255.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/systemctl/systemctl-clean-or-freeze.c | 100 ++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 src/systemctl/systemctl-clean-or-freeze.c

(limited to 'src/systemctl/systemctl-clean-or-freeze.c')

diff --git a/src/systemctl/systemctl-clean-or-freeze.c b/src/systemctl/systemctl-clean-or-freeze.c
new file mode 100644
index 0000000..40d5f6d
--- /dev/null
+++ b/src/systemctl/systemctl-clean-or-freeze.c
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "bus-error.h"
+#include "bus-locator.h"
+#include "bus-wait-for-units.h"
+#include "systemctl-clean-or-freeze.h"
+#include "systemctl-util.h"
+#include "systemctl.h"
+
+int verb_clean_or_freeze(int argc, char *argv[], void *userdata) {
+        _cleanup_(bus_wait_for_units_freep) BusWaitForUnits *w = NULL;
+        _cleanup_strv_free_ char **names = NULL;
+        int r, ret = EXIT_SUCCESS;
+        const char *method;
+        sd_bus *bus;
+
+        r = acquire_bus(BUS_FULL, &bus);
+        if (r < 0)
+                return r;
+
+        polkit_agent_open_maybe();
+
+        if (!arg_clean_what) {
+                arg_clean_what = strv_new("cache", "runtime", "fdstore");
+                if (!arg_clean_what)
+                        return log_oom();
+        }
+
+        r = expand_unit_names(bus, strv_skip(argv, 1), NULL, &names, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to expand names: %m");
+
+        if (!arg_no_block) {
+                r = bus_wait_for_units_new(bus, &w);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to allocate unit waiter: %m");
+        }
+
+        if (streq(argv[0], "clean"))
+                method = "CleanUnit";
+        else if (streq(argv[0], "freeze"))
+                method = "FreezeUnit";
+        else if (streq(argv[0], "thaw"))
+                method = "ThawUnit";
+        else
+                assert_not_reached();
+
+        STRV_FOREACH(name, names) {
+                _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+                _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+
+                if (w) {
+                        /* If we shall wait for the cleaning to complete, let's add a ref on the unit first */
+                        r = bus_call_method(bus, bus_systemd_mgr, "RefUnit", &error, NULL, "s", *name);
+                        if (r < 0) {
+                                log_error_errno(r, "Failed to add reference to unit %s: %s", *name, bus_error_message(&error, r));
+                                if (ret == EXIT_SUCCESS)
+                                        ret = r;
+                                continue;
+                        }
+                }
+
+                r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, method);
+                if (r < 0)
+                        return bus_log_create_error(r);
+
+                r = sd_bus_message_append(m, "s", *name);
+                if (r < 0)
+                        return bus_log_create_error(r);
+
+                if (streq(method, "CleanUnit")) {
+                        r = sd_bus_message_append_strv(m, arg_clean_what);
+                        if (r < 0)
+                                return bus_log_create_error(r);
+                }
+
+                r = sd_bus_call(bus, m, 0, &error, NULL);
+                if (r < 0) {
+                        log_error_errno(r, "Failed to %s unit %s: %s", argv[0], *name, bus_error_message(&error, r));
+                        if (ret == EXIT_SUCCESS) {
+                                ret = r;
+                                continue;
+                        }
+                }
+
+                if (w) {
+                        r = bus_wait_for_units_add_unit(w, *name, BUS_WAIT_REFFED|BUS_WAIT_FOR_MAINTENANCE_END, NULL, NULL);
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to watch unit %s: %m", *name);
+                }
+        }
+
+        r = bus_wait_for_units_run(w);
+        if (r < 0)
+                return log_error_errno(r, "Failed to wait for units: %m");
+        if (r == BUS_WAIT_FAILURE)
+                ret = EXIT_FAILURE;
+
+        return ret;
+}
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