summaryrefslogtreecommitdiff
path: root/htl/tests/test-8.c
diff options
context:
space:
mode:
Diffstat (limited to 'htl/tests/test-8.c')
-rw-r--r--htl/tests/test-8.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/htl/tests/test-8.c b/htl/tests/test-8.c
new file mode 100644
index 0000000000..7e7a5cb25f
--- /dev/null
+++ b/htl/tests/test-8.c
@@ -0,0 +1,78 @@
+/* Test pthread_once.
+ Copyright (C) 2000-2018 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/>. */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <assert.h>
+#include <error.h>
+#include <errno.h>
+
+#define THREADS 10
+
+pthread_once_t inc_var_once = PTHREAD_ONCE_INIT;
+int var;
+
+void
+inc_var (void)
+{
+ var++;
+}
+
+void *
+thr (void *arg)
+{
+ int i;
+
+ for (i = 0; i < 500; i++)
+ pthread_once (&inc_var_once, inc_var);
+
+ return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+ error_t err;
+ int i;
+ pthread_t tid[THREADS];
+
+ for (i = 0; i < THREADS; i++)
+ {
+ err = pthread_create (&tid[i], 0, thr, 0);
+ if (err)
+ error (1, err, "pthread_create (%d)", i);
+ }
+
+ assert (thr (0) == 0);
+
+ for (i = 0; i < THREADS; i++)
+ {
+ void *ret;
+
+ err = pthread_join (tid[i], &ret);
+ if (err)
+ error (1, err, "pthread_join");
+
+ assert (ret == 0);
+ }
+
+ assert (var == 1);
+
+ return 0;
+}