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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2016-06-10 10:03:04 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2016-06-13 13:37:24 -0300
commitb39b6e0c902f0bf5f99d593b8f5953943777c610 (patch)
tree89b6ee282879468ec64b432b2f402d4985cb4f2f /nptl/tst-cancel4_2.c
parent2c41b52901331f5c761015af786a3976e225d779 (diff)
downloadglibc-b39b6e0c902f0bf5f99d593b8f5953943777c610.tar.gz
nptl: Add sendmmsg and recvmmsg cancellation tests
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.
Diffstat (limited to 'nptl/tst-cancel4_2.c')
-rw-r--r--nptl/tst-cancel4_2.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/nptl/tst-cancel4_2.c b/nptl/tst-cancel4_2.c
new file mode 100644
index 0000000000..e8d7550bed
--- /dev/null
+++ b/nptl/tst-cancel4_2.c
@@ -0,0 +1,125 @@
+/* Check recvmmsg cancellation.
+
+ Copyright (C) 2016 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 <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)
+ {
+ printf ("%s: first socket call failed\n", __FUNCTION__);
+ exit (1);
+ }
+
+ int tries = 0;
+ do
+ {
+ if (++tries > 10)
+ {
+ printf ("%s: too many unsuccessful bind calls\n", __FUNCTION__);
+ }
+
+ strcpy (sun.sun_path, "/tmp/tst-cancel4-socket-5-XXXXXX");
+ if (mktemp (sun.sun_path) == NULL)
+ {
+ printf ("%s: cannot generate temp file name\n", __FUNCTION__);
+ exit (1);
+ }
+
+ 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)
+ {
+ printf ("%s: second socket call failed\n", __FUNCTION__);
+ exit (1);
+ }
+
+ int r = pthread_barrier_wait (&b2);
+ if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ printf ("%s: barrier_wait failed\n", __FUNCTION__);
+ exit (1);
+ }
+
+ if (arg != NULL)
+ {
+ r = pthread_barrier_wait (&b2);
+ if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ printf ("%s: 2nd barrier_wait failed\n", __FUNCTION__);
+ exit (1);
+ }
+ }
+
+ 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);
+
+ printf ("%s: recvmmsg returned\n", __FUNCTION__);
+
+ exit (1);
+}
+
+struct cancel_tests tests[] =
+{
+ ADD_TEST (recvmmsg, 2, 1),
+};
+#define ntest_tf (sizeof (tests) / sizeof (tests[0]))
+
+#include "tst-cancel4-common.c"