Add pthread_mutex tests

winsup/testsuite/winsup.api/pthread/mutex1e.c

@@ -0,0 +1,42 @@
+/* 
+ * mutex1e.c
+ *
+ * As for mutex1.c but with type set to PTHREAD_MUTEX_ERRORCHECK.
+ *
+ * Create a simple mutex object, lock it, unlock it, then destroy it.
+ * This is the simplest test of the pthread mutex family that we can do.
+ *
+ * Depends on API functions:
+ *	pthread_mutexattr_settype()
+ * 	pthread_mutex_init()
+ *	pthread_mutex_destroy()
+ */
+
+#include "test.h"
+
+pthread_mutex_t mutex = NULL;
+pthread_mutexattr_t mxAttr;
+
+int
+main()
+{
+  assert(pthread_mutexattr_init(&mxAttr) == 0);
+
+  assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_ERRORCHECK) == 0);
+
+  assert(mutex == NULL);
+
+  assert(pthread_mutex_init(&mutex, &mxAttr) == 0);
+
+  assert(mutex != NULL);
+
+  assert(pthread_mutex_lock(&mutex) == 0);
+
+  assert(pthread_mutex_unlock(&mutex) == 0);
+
+  assert(pthread_mutex_destroy(&mutex) == 0);
+
+  assert(mutex == NULL);
+
+  return 0;
+}