/* Check recvmmsg cancellation.

   Copyright (C) 2016-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <stdio.h>

#include <stddef.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/un.h>

#include <sys/ipc.h>

#include <sys/msg.h>

#include <unistd.h>

#include <errno.h>

#include <pthread.h>

#include "tst-cancel4-common.h"

static void *

tf_recvmmsg (void *arg)

{

  struct sockaddr_un sun;

  tempfd = socket (AF_UNIX, SOCK_DGRAM, 0);

  if (tempfd == -1)

    FAIL_EXIT1 ("socket (AF_UNIX, SOCK_DGRAM, 0): %m");

  int tries = 0;

  do

    {

      if (++tries > 10)

	FAIL_EXIT1 ("too many unsuccessful bind calls");

      strcpy (sun.sun_path, "/tmp/tst-cancel4-socket-5-XXXXXX");

      if (mktemp (sun.sun_path) == NULL)

	FAIL_EXIT1 ("cannot generate temp file name");

      sun.sun_family = AF_UNIX;

    }

  while (bind (tempfd, (struct sockaddr *) &sun,

	       offsetof (struct sockaddr_un, sun_path)

	       + strlen (sun.sun_path) + 1) != 0);

  tempfname = strdup (sun.sun_path);

  tempfd2 = socket (AF_UNIX, SOCK_DGRAM, 0);

  if (tempfd2 == -1)

    FAIL_EXIT1 ("socket (AF_UNIX, SOCK_DGRAM, 0): %m");

  int r = pthread_barrier_wait (&b2;;

  if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)

    FAIL_EXIT1 ("pthread_barrier_wait");

  if (arg != NULL)

    {

      r = pthread_barrier_wait (&b2;;

      if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)

	FAIL_EXIT1 ("pthread_barrier_wait");

    }

  pthread_cleanup_push (cl, NULL);

  char mem[70];

  struct iovec iov[1];

  iov[0].iov_base = mem;

  iov[0].iov_len = arg == NULL ? sizeof (mem) : 0;

  struct mmsghdr mm;

  mm.msg_hdr.msg_name = &sun;

  mm.msg_hdr.msg_namelen = sizeof (sun);

  mm.msg_hdr.msg_iov = iov;

  mm.msg_hdr.msg_iovlen = 1;

  mm.msg_hdr.msg_control = NULL;

  mm.msg_hdr.msg_controllen = 0;

  ssize_t ret = recvmmsg (tempfd2, &mm, 1, 0, NULL);

  if (ret == -1 && errno == ENOSYS)

    exit (77);

  pthread_cleanup_pop (0);

  FAIL_EXIT1 ("recvmmsg returned");

}

struct cancel_tests tests[] =

{

  ADD_TEST (recvmmsg, 2, 1),

};

#define ntest_tf (sizeof (tests) / sizeof (tests[0]))

#include "tst-cancel4-common.c"