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b39b6e0c90
This patch adds cancellation tests for both sendmmsg and recvmmsg
syscalls. Since for some system configuration (x86_64/i686 on
older kernels and non-Linux platforms), the tests are added as
two independent that report as unsupported if the syscall is not
presented.
Both new tests uses the already tst-cancel4.c code, which as moved
to a common tst-cancel4-common{.c,h} files.
Tested on x86_64 and i686.
* nptl/Makefile (test): Add tst-cancel4_1 and tst-cancel4_2.
* nptl/tst-cancel4-common.c: New file.
* nptl/tst-cancel4-common.h: Likewise.
* nptl/tst-cancel4.c: Move common definitions to
tst-cancel4-common.{c,h} file.
* nptl/tst-cancel4_1.c: New test.
* nptl/tst-cancel4_2.c: New test.
128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
/* Check sendmmsg cancellation.
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Copyright (C) 2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <unistd.h>
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#include <errno.h>
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#include <pthread.h>
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#include "tst-cancel4-common.h"
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static void *
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tf_sendmmsg (void *arg)
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{
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if (arg == NULL)
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// XXX If somebody can provide a portable test case in which sendmmsg()
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// blocks we can enable this test to run in both rounds.
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abort ();
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struct sockaddr_un sun;
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tempfd = socket (AF_UNIX, SOCK_DGRAM, 0);
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if (tempfd == -1)
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{
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printf ("%s: first socket call failed\n", __FUNCTION__);
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exit (1);
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}
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int tries = 0;
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do
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{
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if (++tries > 10)
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{
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printf ("%s: too many unsuccessful bind calls\n", __FUNCTION__);
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}
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strcpy (sun.sun_path, "/tmp/tst-cancel4-socket-7-XXXXXX");
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if (mktemp (sun.sun_path) == NULL)
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{
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printf ("%s: cannot generate temp file name\n", __FUNCTION__);
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exit (1);
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}
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sun.sun_family = AF_UNIX;
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}
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while (bind (tempfd, (struct sockaddr *) &sun,
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offsetof (struct sockaddr_un, sun_path)
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+ strlen (sun.sun_path) + 1) != 0);
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tempfname = strdup (sun.sun_path);
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tempfd2 = socket (AF_UNIX, SOCK_DGRAM, 0);
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if (tempfd2 == -1)
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{
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printf ("%s: second socket call failed\n", __FUNCTION__);
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exit (1);
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}
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int r = pthread_barrier_wait (&b2);
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if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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printf ("%s: barrier_wait failed\n", __FUNCTION__);
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exit (1);
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}
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r = pthread_barrier_wait (&b2);
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if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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printf ("%s: 2nd barrier_wait failed\n", __FUNCTION__);
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exit (1);
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}
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pthread_cleanup_push (cl, NULL);
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char mem[1];
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struct iovec iov[1];
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iov[0].iov_base = mem;
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iov[0].iov_len = 1;
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struct mmsghdr mm;
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mm.msg_hdr.msg_name = &sun;
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mm.msg_hdr.msg_namelen = (offsetof (struct sockaddr_un, sun_path)
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+ strlen (sun.sun_path) + 1);
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mm.msg_hdr.msg_iov = iov;
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mm.msg_hdr.msg_iovlen = 1;
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mm.msg_hdr.msg_control = NULL;
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mm.msg_hdr.msg_controllen = 0;
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ssize_t ret = sendmmsg (tempfd2, &mm, 1, 0);
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if (ret == -1 && errno == ENOSYS)
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exit (77);
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pthread_cleanup_pop (0);
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printf ("%s: sendmmsg returned\n", __FUNCTION__);
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exit (1);
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}
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struct cancel_tests tests[] =
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{
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ADD_TEST (sendmmsg, 2, 1),
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};
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#define ntest_tf (sizeof (tests) / sizeof (tests[0]))
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#include "tst-cancel4-common.c"
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