+
+int manager_add_machine(Manager *m, const char *name, Machine **_machine) {
+ Machine *machine;
+
+ assert(m);
+ assert(name);
+
+ machine = hashmap_get(m->machines, name);
+ if (machine) {
+ if (_machine)
+ *_machine = machine;
+
+ return 0;
+ }
+
+ machine = machine_new(m, name);
+ if (!machine)
+ return -ENOMEM;
+
+ if (_machine)
+ *_machine = machine;
+
+ return 0;
+}
+
+int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) {
+ _cleanup_free_ char *unit = NULL;
+ Machine *mm;
+ int r;
+
+ assert(m);
+ assert(pid >= 1);
+ assert(machine);
+
+ r = cg_pid_get_unit(pid, &unit);
+ if (r < 0)
+ return r;
+
+ mm = hashmap_get(m->machine_units, unit);
+ if (!mm)
+ return 0;
+
+ *machine = mm;
+ return 1;
+}