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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2020-02-09 23:14:35 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2020-02-10 01:03:55 +0000
commit6acd77229adda7e772bf5783145500f6cd074fd3 (patch)
tree46d03d0aec8858ee9de87f6a16c46348dbcb2563 /sysdeps/pthread
parentf3a7ff069f74e4d6a89aba5fb9bba74f38d249c7 (diff)
downloadglibc-6acd77229adda7e772bf5783145500f6cd074fd3.tar.gz
pthread: Move most barrier tests from nptl to sysdeps/pthread
So they can be checked with htl too.
Diffstat (limited to 'sysdeps/pthread')
-rw-r--r--sysdeps/pthread/Makefile1
-rw-r--r--sysdeps/pthread/tst-barrier1.c71
-rw-r--r--sysdeps/pthread/tst-barrier2.c185
-rw-r--r--sysdeps/pthread/tst-barrier3.c152
-rw-r--r--sysdeps/pthread/tst-barrier4.c121
5 files changed, 530 insertions, 0 deletions
diff --git a/sysdeps/pthread/Makefile b/sysdeps/pthread/Makefile
index 2f07c0cfe6..c102f45b6a 100644
--- a/sysdeps/pthread/Makefile
+++ b/sysdeps/pthread/Makefile
@@ -43,6 +43,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \
tst-cnd-timedwait tst-thrd-detach tst-mtx-basic tst-thrd-sleep \
tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
tst-attr1 \
+ tst-barrier1 tst-barrier2 tst-barrier3 tst-barrier4 \
tst-basic1 tst-basic2 tst-basic3 tst-basic4 tst-basic5 tst-basic6 \
tst-basic7 \
tst-cond1 tst-cond2 tst-cond3 tst-cond4 tst-cond5 tst-cond6 tst-cond7 \
diff --git a/sysdeps/pthread/tst-barrier1.c b/sysdeps/pthread/tst-barrier1.c
new file mode 100644
index 0000000000..d60f22f63d
--- /dev/null
+++ b/sysdeps/pthread/tst-barrier1.c
@@ -0,0 +1,71 @@
+/* Tests barrier initialization.
+ Copyright (C) 2002-2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+
+
+static int
+do_test (void)
+{
+ pthread_barrier_t b;
+ int e;
+ int cnt;
+
+ e = pthread_barrier_init (&b, NULL, 0);
+ if (e == 0)
+ {
+ puts ("barrier_init with count 0 succeeded");
+ return 1;
+ }
+ if (e != EINVAL)
+ {
+ puts ("barrier_init with count 0 didn't return EINVAL");
+ return 1;
+ }
+
+ if (pthread_barrier_init (&b, NULL, 1) != 0)
+ {
+ puts ("real barrier_init failed");
+ return 1;
+ }
+
+ for (cnt = 0; cnt < 10; ++cnt)
+ {
+ e = pthread_barrier_wait (&b);
+
+ if (e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("barrier_wait didn't return PTHREAD_BARRIER_SERIAL_THREAD");
+ return 1;
+ }
+ }
+
+ if (pthread_barrier_destroy (&b) != 0)
+ {
+ puts ("barrier_destroy failed");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/pthread/tst-barrier2.c b/sysdeps/pthread/tst-barrier2.c
new file mode 100644
index 0000000000..d32c632ae0
--- /dev/null
+++ b/sysdeps/pthread/tst-barrier2.c
@@ -0,0 +1,185 @@
+/* Tests process-shared barriers.
+ Copyright (C) 2002-2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+
+static int
+do_test (void)
+{
+ size_t ps = sysconf (_SC_PAGESIZE);
+ char tmpfname[] = "/tmp/tst-barrier2.XXXXXX";
+ char data[ps];
+ void *mem;
+ int fd;
+ pthread_barrier_t *b;
+ pthread_barrierattr_t a;
+ pid_t pid;
+ int serials = 0;
+ int cnt;
+ int status;
+ int p;
+
+ fd = mkstemp (tmpfname);
+ if (fd == -1)
+ {
+ printf ("cannot open temporary file: %m\n");
+ return 1;
+ }
+
+ /* Make sure it is always removed. */
+ unlink (tmpfname);
+
+ /* Create one page of data. */
+ memset (data, '\0', ps);
+
+ /* Write the data to the file. */
+ if (write (fd, data, ps) != (ssize_t) ps)
+ {
+ puts ("short write");
+ return 1;
+ }
+
+ mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (mem == MAP_FAILED)
+ {
+ printf ("mmap failed: %m\n");
+ return 1;
+ }
+
+ b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
+ & ~(__alignof (pthread_barrier_t) - 1));
+
+ if (pthread_barrierattr_init (&a) != 0)
+ {
+ puts ("barrierattr_init failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_getpshared (&a, &p) != 0)
+ {
+ puts ("1st barrierattr_getpshared failed");
+ return 1;
+ }
+
+ if (p != PTHREAD_PROCESS_PRIVATE)
+ {
+ puts ("default pshared value wrong");
+ return 1;
+ }
+
+ if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("barrierattr_setpshared failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_getpshared (&a, &p) != 0)
+ {
+ puts ("2nd barrierattr_getpshared failed");
+ return 1;
+ }
+
+ if (p != PTHREAD_PROCESS_SHARED)
+ {
+ puts ("pshared value after setpshared call wrong");
+ return 1;
+ }
+
+ if (pthread_barrier_init (b, &a, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_destroy (&a) != 0)
+ {
+ puts ("barrierattr_destroy failed");
+ return 1;
+ }
+
+ puts ("going to fork now");
+ pid = fork ();
+ if (pid == -1)
+ {
+ puts ("fork failed");
+ return 1;
+ }
+
+ /* Just to be sure we don't hang forever. */
+ alarm (4);
+
+#define N 30
+ for (cnt = 0; cnt < N; ++cnt)
+ {
+ int e;
+
+ e = pthread_barrier_wait (b);
+ if (e == PTHREAD_BARRIER_SERIAL_THREAD)
+ ++serials;
+ else if (e != 0)
+ {
+ printf ("%s: barrier_wait returned value %d != 0 and PTHREAD_BARRIER_SERIAL_THREAD\n",
+ pid == 0 ? "child" : "parent", e);
+ return 1;
+ }
+ }
+
+ alarm (0);
+
+ printf ("%s: was %d times the serial thread\n",
+ pid == 0 ? "child" : "parent", serials);
+
+ if (pid == 0)
+ /* The child. Pass the number of times we had the serializing
+ thread back to the parent. */
+ exit (serials);
+
+ if (waitpid (pid, &status, 0) != pid)
+ {
+ puts ("waitpid failed");
+ return 1;
+ }
+
+ if (!WIFEXITED (status))
+ {
+ puts ("child exited abnormally");
+ return 1;
+ }
+
+ if (WEXITSTATUS (status) + serials != N)
+ {
+ printf ("total number of serials is %d, expected %d\n",
+ WEXITSTATUS (status) + serials, N);
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/pthread/tst-barrier3.c b/sysdeps/pthread/tst-barrier3.c
new file mode 100644
index 0000000000..3e3066f352
--- /dev/null
+++ b/sysdeps/pthread/tst-barrier3.c
@@ -0,0 +1,152 @@
+/* Test of POSIX barriers.
+ Copyright (C) 2002-2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define NTHREADS 20
+
+#define ROUNDS 20
+
+static pthread_barrier_t barriers[NTHREADS];
+
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+static int counters[NTHREADS];
+static int serial[NTHREADS];
+
+static void *
+worker (void *arg)
+{
+ void *result = NULL;
+ int nr = (long int) arg;
+ int i;
+
+ for (i = 0; i < ROUNDS; ++i)
+ {
+ int j;
+ int retval;
+
+ if (nr == 0)
+ {
+ memset (counters, '\0', sizeof (counters));
+ memset (serial, '\0', sizeof (serial));
+ }
+
+ retval = pthread_barrier_wait (&barriers[NTHREADS - 1]);
+ if (retval != 0 && retval != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ printf ("thread %d failed to wait for all the others\n", nr);
+ result = (void *) 1;
+ }
+
+ for (j = nr; j < NTHREADS; ++j)
+ {
+ /* Increment the counter for this round. */
+ pthread_mutex_lock (&lock);
+ ++counters[j];
+ pthread_mutex_unlock (&lock);
+
+ /* Wait for the rest. */
+ retval = pthread_barrier_wait (&barriers[j]);
+
+ /* Test the result. */
+ if (nr == 0 && counters[j] != j + 1)
+ {
+ printf ("barrier in round %d released but count is %d\n",
+ j, counters[j]);
+ result = (void *) 1;
+ }
+
+ if (retval != 0)
+ {
+ if (retval != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ printf ("thread %d in round %d has nonzero return value != PTHREAD_BARRIER_SERIAL_THREAD\n",
+ nr, j);
+ result = (void *) 1;
+ }
+ else
+ {
+ pthread_mutex_lock (&lock);
+ ++serial[j];
+ pthread_mutex_unlock (&lock);
+ }
+ }
+
+ /* Wait for the rest again. */
+ retval = pthread_barrier_wait (&barriers[j]);
+
+ /* Now we can check whether exactly one thread was serializing. */
+ if (nr == 0 && serial[j] != 1)
+ {
+ printf ("not exactly one serial thread in round %d\n", j);
+ result = (void *) 1;
+ }
+ }
+ }
+
+ return result;
+}
+
+
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 60
+static int
+do_test (void)
+{
+ pthread_t threads[NTHREADS];
+ int i;
+ void *res;
+ int result = 0;
+
+ /* Initialized the barrier variables. */
+ for (i = 0; i < NTHREADS; ++i)
+ if (pthread_barrier_init (&barriers[i], NULL, i + 1) != 0)
+ {
+ printf ("Failed to initialize barrier %d\n", i);
+ exit (1);
+ }
+
+ /* Start the threads. */
+ for (i = 0; i < NTHREADS; ++i)
+ if (pthread_create (&threads[i], NULL, worker, (void *) (long int) i) != 0)
+ {
+ printf ("Failed to start thread %d\n", i);
+ exit (1);
+ }
+
+ /* And wait for them. */
+ for (i = 0; i < NTHREADS; ++i)
+ if (pthread_join (threads[i], &res) != 0 || res != NULL)
+ {
+ printf ("thread %d returned a failure\n", i);
+ result = 1;
+ }
+ else
+ printf ("joined threads %d\n", i);
+
+ if (result == 0)
+ puts ("all OK");
+
+ return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/sysdeps/pthread/tst-barrier4.c b/sysdeps/pthread/tst-barrier4.c
new file mode 100644
index 0000000000..fdf6c40a37
--- /dev/null
+++ b/sysdeps/pthread/tst-barrier4.c
@@ -0,0 +1,121 @@
+/* This tests destruction of a barrier right after waiting on it.
+ Copyright (C) 2004-2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static pthread_barrier_t b1;
+static pthread_barrier_t b2;
+
+
+#define N 20
+
+static void *
+tf (void *arg)
+{
+ int round = 0;
+
+ while (round++ < 30)
+ {
+ if (pthread_barrier_wait (&b1) == PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ pthread_barrier_destroy (&b1);
+ if (pthread_barrier_init (&b1, NULL, N) != 0)
+ {
+ puts ("tf: 1st barrier_init failed");
+ exit (1);
+ }
+ }
+
+ if (pthread_barrier_wait (&b2) == PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ pthread_barrier_destroy (&b2);
+ if (pthread_barrier_init (&b2, NULL, N) != 0)
+ {
+ puts ("tf: 2nd barrier_init failed");
+ exit (1);
+ }
+ }
+ }
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ pthread_attr_t at;
+ int cnt;
+
+ if (pthread_attr_init (&at) != 0)
+ {
+ puts ("attr_init failed");
+ return 1;
+ }
+
+ if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
+ {
+ puts ("attr_setstacksize failed");
+ return 1;
+ }
+
+ if (pthread_barrier_init (&b1, NULL, N) != 0)
+ {
+ puts ("1st barrier_init failed");
+ return 1;
+ }
+
+ if (pthread_barrier_init (&b2, NULL, N) != 0)
+ {
+ puts ("2nd barrier_init failed");
+ return 1;
+ }
+
+ pthread_t th[N - 1];
+ for (cnt = 0; cnt < N - 1; ++cnt)
+ if (pthread_create (&th[cnt], &at, tf, NULL) != 0)
+ {
+ puts ("pthread_create failed");
+ return 1;
+ }
+
+ if (pthread_attr_destroy (&at) != 0)
+ {
+ puts ("attr_destroy failed");
+ return 1;
+ }
+
+ tf (NULL);
+
+ for (cnt = 0; cnt < N - 1; ++cnt)
+ if (pthread_join (th[cnt], NULL) != 0)
+ {
+ puts ("pthread_join failed");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"