[NaCl SDK] nacl_io: Add initial implementations of kill and signal

native_client_sdk/src/tests/nacl_io_test/event_test.cc

 /* Copyright (c) 2013 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
+#include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 
 #include "gtest/gtest.h"
 
 #include "nacl_io/event_emitter.h"
 #include "nacl_io/event_listener.h"
 #include "nacl_io/kernel_intercept.h"
 #include "nacl_io/kernel_proxy.h"
 #include "nacl_io/kernel_wrap.h"
@@ skipping 452 matching lines @@
   // Expect normal files to be read/write and one pollable node to be read.
   SetFDs(&rd_set, fds);
   SetFDs(&wr_set, fds);
   cnt = select(fdnum, &rd_set, &wr_set, NULL, NULL);
   EXPECT_EQ(7, cnt);
   EXPECT_NE(0, FD_ISSET(fds[0], &rd_set));
   EXPECT_EQ(0, FD_ISSET(fds[0], &wr_set));
 }