Import libpthread.

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/test-12.c b/tests/test-12.c
new file mode 100644
index 0000000..2b78490
--- /dev/null
+++ b/tests/test-12.c
@@ -0,0 +1,29 @@
+/* Test concurrency level.  */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <assert.h>
+#include <error.h>
+#include <errno.h>
+
+int
+main (int argc, char **argv)
+{
+  int i;
+  int err;
+
+  i = pthread_getconcurrency ();
+  assert (i == 0);
+
+  err = pthread_setconcurrency (-1);
+  assert (err == EINVAL);
+
+  err = pthread_setconcurrency (4);
+  assert (err == 0);
+
+  i = pthread_getconcurrency ();
+  assert (i == 4);
+
+  return 0;
+}