glibc/nptl/tst-cancel4-common.c

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/* Common file for all tst-cancel4_*
Copyright (C) 2016-2020 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
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
<https://www.gnu.org/licenses/>. */
static int
do_test (void)
{
if (socketpair (AF_UNIX, SOCK_STREAM, PF_UNIX, fds) != 0)
{
perror ("socketpair");
exit (1);
}
nptl: Fix tst-cancel4 sendto tests Now that send might be implemented calling sendto syscall on Linux, I am seeing some issue in some kernel configurations where tst-cancel4 sendto do not block as expected. The socket used to force the syscall blocking is used with default system configuration for buffer sending size, which might not be suffice to force blocking. This patch fixes it by explicit setting buffer socket lower than the buffer size used. It also enables sendto cancellation tests to work in both ways (since internally send is implemented routing to sendto on Linux kernel). The patch also removes unrequired make rules on some archictures for send/recv. The generic nptl Makefile already set the compiler flags required on some architectures for correct unwinding and libc object are not strictly required to support unwind (since pthread_cancel requires linking against libpthread). Checked on aarch64-linux-gnu and x86_64-linux-gnu. I also did a sniff test with tst-cancel{4,5} on a simulated mips64-linux-gnu. * nptl/tst-cancel4-common.h (set_socket_buffer): New function. * nptl/tst-cancel4-common.c (do_test): Call set_socket_buffer for socketpair endpoint. * nptl/tst-cancel4.c (tf_send): Call set_socket_buffer and use WRITE_BUFFER_SIZE as buffer size for sending socket. (tf_sendto): Use SOCK_STREAM instead of SOCK_DGRAM and fix an issue on system where send is implemented with sendto syscall. * sysdeps/unix/sysv/linux/mips/mips64/Makefile [$(subdir) = socket] (CFLAGS-recv.c, CFLAGS-send.c): Remove rules. [$(subdir) = nptl] (CFLAGS-recv.c, CFLAGS-send.c): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/Makefile: Remove file.
2018-02-22 18:47:33 +00:00
set_socket_buffer (fds[1]);
if (mktemp (fifoname) == NULL)
{
printf ("%s: cannot generate temp file name: %m\n", __func__);
exit (1);
}
int result = 0;
size_t cnt;
for (cnt = 0; cnt < ntest_tf; ++cnt)
{
if (tests[cnt].only_early)
continue;
if (pthread_barrier_init (&b2, NULL, tests[cnt].nb) != 0)
{
puts ("b2 init failed");
exit (1);
}
/* Reset the counter for the cleanup handler. */
cl_called = 0;
pthread_t th;
if (pthread_create (&th, NULL, tests[cnt].tf, NULL) != 0)
{
printf ("create for '%s' test failed\n", tests[cnt].name);
result = 1;
continue;
}
int r = pthread_barrier_wait (&b2);
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("%s: barrier_wait failed\n", __func__);
result = 1;
continue;
}
struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
while (nanosleep (&ts, &ts) != 0)
continue;
if (pthread_cancel (th) != 0)
{
printf ("cancel for '%s' failed\n", tests[cnt].name);
result = 1;
continue;
}
void *status;
if (pthread_join (th, &status) != 0)
{
printf ("join for '%s' failed\n", tests[cnt].name);
result = 1;
continue;
}
if (status != PTHREAD_CANCELED)
{
printf ("thread for '%s' not canceled\n", tests[cnt].name);
result = 1;
continue;
}
if (pthread_barrier_destroy (&b2) != 0)
{
puts ("barrier_destroy failed");
result = 1;
continue;
}
if (cl_called == 0)
{
printf ("cleanup handler not called for '%s'\n", tests[cnt].name);
result = 1;
continue;
}
if (cl_called > 1)
{
printf ("cleanup handler called more than once for '%s'\n",
tests[cnt].name);
result = 1;
continue;
}
printf ("in-time cancel test of '%s' successful\n", tests[cnt].name);
if (tempfd != -1)
{
close (tempfd);
tempfd = -1;
}
if (tempfd2 != -1)
{
close (tempfd2);
tempfd2 = -1;
}
if (tempfname != NULL)
{
unlink (tempfname);
free (tempfname);
tempfname = NULL;
}
if (tempmsg != -1)
{
msgctl (tempmsg, IPC_RMID, NULL);
tempmsg = -1;
}
}
for (cnt = 0; cnt < ntest_tf; ++cnt)
{
if (pthread_barrier_init (&b2, NULL, tests[cnt].nb) != 0)
{
puts ("b2 init failed");
exit (1);
}
/* Reset the counter for the cleanup handler. */
cl_called = 0;
pthread_t th;
if (pthread_create (&th, NULL, tests[cnt].tf, (void *) 1l) != 0)
{
printf ("create for '%s' test failed\n", tests[cnt].name);
result = 1;
continue;
}
int r = pthread_barrier_wait (&b2);
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("%s: barrier_wait failed\n", __func__);
result = 1;
continue;
}
if (pthread_cancel (th) != 0)
{
printf ("cancel for '%s' failed\n", tests[cnt].name);
result = 1;
continue;
}
r = pthread_barrier_wait (&b2);
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("%s: barrier_wait failed\n", __func__);
result = 1;
continue;
}
void *status;
if (pthread_join (th, &status) != 0)
{
printf ("join for '%s' failed\n", tests[cnt].name);
result = 1;
continue;
}
if (status != PTHREAD_CANCELED)
{
printf ("thread for '%s' not canceled\n", tests[cnt].name);
result = 1;
continue;
}
if (pthread_barrier_destroy (&b2) != 0)
{
puts ("barrier_destroy failed");
result = 1;
continue;
}
if (cl_called == 0)
{
printf ("cleanup handler not called for '%s'\n", tests[cnt].name);
result = 1;
continue;
}
if (cl_called > 1)
{
printf ("cleanup handler called more than once for '%s'\n",
tests[cnt].name);
result = 1;
continue;
}
printf ("early cancel test of '%s' successful\n", tests[cnt].name);
if (tempfd != -1)
{
close (tempfd);
tempfd = -1;
}
if (tempfd2 != -1)
{
close (tempfd2);
tempfd2 = -1;
}
if (tempfname != NULL)
{
unlink (tempfname);
free (tempfname);
tempfname = NULL;
}
if (tempmsg != -1)
{
msgctl (tempmsg, IPC_RMID, NULL);
tempmsg = -1;
}
}
return result;
}
#define TIMEOUT 60
#include <support/test-driver.c>