1 files changed, 35 insertions, 0 deletions
diff --git a/tests/once1.c b/tests/once1.c
new file mode 100644
index 0000000..f4164ac
--- /dev/null
+++ b/tests/once1.c
@@ -0,0 +1,35 @@
+#include <pthread.h>
+#include <stdio.h>
+
+pthread_once_t once = PTHREAD_ONCE_INIT;
+
+void
+myfunc(void)
+{
+	printf("only see this once\n");
+}
+
+void *
+mythread(void * arg)
+{
+   int rc = pthread_once(&once, myfunc);
+   printf("returned %d\n", rc); 
+
+   return 0;
+}
+
+int
+main()
+{
+  int rc;
+  pthread_t t1, t2;
+  
+  rc = pthread_create(&t1, NULL, mythread, NULL);
+  printf("pthread_create returned %d\n", rc);
+
+  rc = pthread_create(&t2, NULL, mythread, NULL);
+  printf("pthread_create returned %d\n", rc);
+
+  Sleep(2000);
+  return 0;
+}