1 files changed, 46 insertions, 0 deletions
diff --git a/libpthread/tests/test-10.c b/libpthread/tests/test-10.c
new file mode 100644
index 00000000..bec05c14
--- /dev/null
+++ b/libpthread/tests/test-10.c
@@ -0,0 +1,46 @@
+/* Test error checking mutexes.  */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <assert.h>
+#include <error.h>
+#include <errno.h>
+
+int
+main (int argc, char **argv)
+{
+  error_t err;
+  pthread_mutexattr_t mattr;
+  pthread_mutex_t mutex;
+
+  err = pthread_mutexattr_init (&mattr);
+  if (err)
+    error (1, err, "pthread_mutexattr_init");
+
+  err = pthread_mutexattr_settype (&mattr, PTHREAD_MUTEX_ERRORCHECK);
+  if (err)
+    error (1, err, "pthread_mutexattr_settype");
+
+  err = pthread_mutex_init (&mutex, &mattr);
+  if (err)
+    error (1, err, "pthread_mutex_init");
+
+  err = pthread_mutexattr_destroy (&mattr);
+  if (err)
+    error (1, err, "pthread_mutexattr_destroy");
+
+  err = pthread_mutex_lock (&mutex);
+  assert (err == 0);
+
+  err = pthread_mutex_lock (&mutex);
+  assert (err == EDEADLK);
+
+  err = pthread_mutex_unlock (&mutex);
+  assert (err == 0);
+
+  err = pthread_mutex_unlock (&mutex);
+  assert (err == EPERM);
+
+  return 0;
+}