1 files changed, 45 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/pthread/once1.c b/winsup/testsuite/winsup.api/pthread/once1.c
new file mode 100644
index 000000000..91dc03832
--- /dev/null
+++ b/winsup/testsuite/winsup.api/pthread/once1.c
@@ -0,0 +1,45 @@
+/*
+ * once1.c
+ *
+ * Create a static pthread_once and test that it calls myfunc once.
+ *
+ * Depends on API functions:
+ *	pthread_once()
+ *	pthread_create()
+ */
+
+#include "test.h"
+
+pthread_once_t once = PTHREAD_ONCE_INIT;
+
+static int washere = 0;
+
+void
+myfunc(void)
+{
+  washere++;
+}
+
+void *
+mythread(void * arg)
+{
+   assert(pthread_once(&once, myfunc) == 0);
+
+   return 0;
+}
+
+int
+main()
+{
+  pthread_t t1, t2;
+  
+  assert(pthread_create(&t1, NULL, mythread, NULL) == 0);
+
+  assert(pthread_create(&t2, NULL, mythread, NULL) == 0);
+
+  Sleep(2000);
+
+  assert(washere == 1);
+
+  return 0;
+}