+ if (handle == HANDLE_SUSPEND)
+ supported = can_sleep("mem") > 0;
+ else if (handle == HANDLE_HIBERNATE)
+ supported = can_sleep("disk") > 0;
+ else if (handle == HANDLE_HYBRID_SLEEP)
+ supported = can_sleep("disk") > 0 && can_sleep_disk("suspend") > 0;
+ else if (handle == HANDLE_KEXEC)
+ supported = access("/sbin/kexec", X_OK) >= 0;
+ else
+ supported = true;
+
+ if (!supported) {
+ log_warning("Requested operation not supported, ignoring.");
+ return -ENOTSUP;
+ }
+