1 files changed, 18 insertions, 5 deletions
diff --git a/tests/mutex2.c b/tests/mutex2.c
index 224b7ea..d0885fc 100644
--- a/tests/mutex2.c
+++ b/tests/mutex2.c
@@ -1,12 +1,25 @@
+/* 
+ * mutex1.c
+ *
+ * Declare a static mutex object, lock it, and then unlock it again.
+ */
+
 #include <pthread.h>
+#include "test.h"
  
-pthread_mutex_t mutex1;
- 
+pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;
+
 main()
 {
-  pthread_mutex_init(&mutex1, NULL);
-  pthread_mutex_trylock(&mutex1);
-  pthread_mutex_unlock(&mutex1);
+  int result;
+
+  result = pthread_mutex_trylock(&mutex1);
+  printf("pthread_mutex_trylock returned %s\n", error_string[result]);
+
+  if (result == 0)
+  {
+    pthread_mutex_unlock(&mutex1);
+  }
 
   return 0;
 }