/**
* Sends signal to every child process of a tree root process
*
* @param process tree root process
*/
public static boolean sendSignalToProcessTree(Process process, int signal) {
checkCLib();
final int our_pid = C_LIB.getpid();
final int process_pid = getProcessPid(process);
final Ref<Integer> foundPid = new Ref<Integer>();
final ProcessInfo processInfo = new ProcessInfo();
final List<Integer> childrenPids = new ArrayList<Integer>();
processPSOutput(
getPSCmd(false),
new Processor<String>() {
@Override
public boolean process(String s) {
StringTokenizer st = new StringTokenizer(s, " ");
int parent_pid = Integer.parseInt(st.nextToken());
int pid = Integer.parseInt(st.nextToken());
processInfo.register(pid, parent_pid);
if (parent_pid == process_pid) {
childrenPids.add(pid);
}
if (pid == process_pid) {
if (parent_pid == our_pid) {
foundPid.set(pid);
} else {
throw new IllegalStateException("process is not our child");
}
}
return false;
}
});
boolean result;
if (!foundPid.isNull()) {
processInfo.killProcTree(foundPid.get(), signal, UNIX_KILLER);
result = true;
} else {
for (Integer pid : childrenPids) {
processInfo.killProcTree(pid, signal, UNIX_KILLER);
}
result = false;
}
return result;
}
public static int getProcessPid() {
checkCLib();
return C_LIB.getpid();
}