+ static void shutdown(boolean reboot) {
+ try {
+ stopInitDServices();
+ Path sysrqP = Paths.get("/proc/sys/kernel/sysrq");
+ Files.writeString(sysrqP, "1");
+ Path sysrqTriggerP = Paths.get("/proc/sysrq-trigger");
+ Files.writeString(sysrqTriggerP, "e");// send SIGTERM to all processes
+ // Files.writeString(sysrqTriggerP, "i");// send SIGKILL to all processes
+ Files.writeString(sysrqTriggerP, "e");// flush data to disk
+ Files.writeString(sysrqTriggerP, "u");// unmount
+ if (reboot)
+ Files.writeString(sysrqTriggerP, "b");
+ else
+ Files.writeString(sysrqTriggerP, "o");
+ } catch (IOException e) {
+ logger.log(ERROR, "Cannot shut down system", e);
+ }
+ }
+
+ static void stopInitDServices() {
+ for (int i = initDServices.size() - 1; i >= 0; i--) {
+ String serviceName = initDServices.get(i);
+ Path serviceInit = Paths.get("/etc/init.d/", serviceName);
+ try {
+ int exitCode = new ProcessBuilder(serviceInit.toString(), "stop").start().waitFor();
+ if (exitCode != 0)
+ logger.log(ERROR, "Service " + serviceName + " dit not stop properly");
+ } catch (InterruptedException | IOException e) {
+ logger.log(ERROR, "Cannot stop service " + serviceName, e);
+ }
+ }
+ }
+