1 files changed, 43 insertions, 0 deletions
diff --git a/tests/test-pthread-once1.c b/tests/test-pthread-once1.c
new file mode 100644
index 00000000..92546e43
--- /dev/null
+++ b/tests/test-pthread-once1.c
@@ -0,0 +1,43 @@
+/* Test of once-only execution in multithreaded situations.
+   Copyright (C) 2018-2024 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2018.  */
+
+#include <config.h>
+
+#include <pthread.h>
+
+#include "macros.h"
+
+static pthread_once_t a_once = PTHREAD_ONCE_INIT;
+
+static int a;
+
+static void
+a_init (void)
+{
+  a = 42;
+}
+
+int
+main ()
+{
+  ASSERT (pthread_once (&a_once, a_init) == 0);
+
+  ASSERT (a == 42);
+
+  return test_exit_status;
+}