public Status forkish() throws IOException {
if (isDaemon()) {
posix.setsid();
OutputStream old_out = System.out;
OutputStream old_err = System.err;
System.setOut(new PrintStream(new FileOutputStream(out, true)));
System.setErr(new PrintStream(new FileOutputStream(err, true)));
old_err.close();
old_out.close();
if (pidfile != null) {
FileOutputStream p_out = new FileOutputStream(pidfile);
p_out.write(String.valueOf(posix.getpid()).getBytes());
p_out.close();
}
return Status.child(posix.getpid());
} else {
String[] envp = getEnv(Daemon.class.getName() + "=daemon");
List<String> argv = buildARGV(posix);
jnr.ffi.Runtime runtime = jnr.ffi.Runtime.getSystemRuntime();
Pointer NULL = Pointer.wrap(runtime, 0L);
IntByReference child_pid = new IntByReference();
int rs =
posix.posix_spawnp(
child_pid, argv.get(0), NULL, NULL, argv.toArray(new String[argv.size()]), envp);
if (rs != 0) {
throw new RuntimeException(posix.strerror(rs));
}
return Status.parent(child_pid.getValue());
}
}
