* winsup.api/pthread/: New directory. Ports of pthread functionality

tests ported from pthreads-win32 project.
* winsup.api/pthread/test.h: Commmon declaraions for pthread tests.
* winsup.api/pthread/cleanup2.c: New test.
* winsup.api/pthread/cleanup3.c: Ditto.
* winsup.api/pthread/condvar1.c: Ditto.
* winsup.api/pthread/condvar2.c: Ditto.
* winsup.api/pthread/condvar2_1.c: Ditto.
* winsup.api/pthread/condvar3.c: Ditto.
* winsup.api/pthread/condvar3_1.c: Ditto.
* winsup.api/pthread/condvar3_2.c: Ditto.
* winsup.api/pthread/condvar3_3.c: Ditto.
* winsup.api/pthread/condvar4.c: Ditto.
* winsup.api/pthread/condvar5.c: Ditto.
* winsup.api/pthread/condvar6.c: Ditto.
* winsup.api/pthread/condvar8.c: Ditto.
* winsup.api/pthread/count1.c: Ditto.
* winsup.api/pthread/create1.c: Ditto.
* winsup.api/pthread/create2.c: Ditto.
* winsup.api/pthread/equal1.c: Ditto.
* winsup.api/pthread/exit1.c: Ditto.
* winsup.api/pthread/exit2.c: Ditto.
* winsup.api/pthread/exit3.c: Ditto.
* winsup.api/pthread/inherit1.c: Ditto.
* winsup.api/pthread/join0.c: Ditto.
* winsup.api/pthread/join1.c: Ditto.
* winsup.api/pthread/join2.c: Ditto.
* winsup.api/pthread/mutex1.c: Ditto.
* winsup.api/pthread/mutex1r.c: Ditto.
* winsup.api/pthread/mutex2.c: Ditto.
* winsup.api/pthread/mutex3.c: Ditto.
* winsup.api/pthread/mutex6r.c: Ditto.
* winsup.api/pthread/once1.c: Ditto.
* winsup.api/pthread/priority1.c: Ditto.
* winsup.api/pthread/priority2.c: Ditto.
* winsup.api/pthread/self1.c: Ditto.
* winsup.api/pthread/self2.c: Ditto.
* winsup.api/pthread/tsd1.c: Ditto.

winsup/testsuite/winsup.api/pthread/mutex6r.c

@@ -0,0 +1,68 @@
+/* 
+ * mutex6r.c
+ *
+ * Tests PTHREAD_MUTEX_RECURSIVE mutex type.
+ * Thread locks mutex twice (recursive lock).
+ * Both locks and unlocks should succeed.
+ *
+ * Depends on API functions: 
+ *      pthread_create()
+ *      pthread_join()
+ *      pthread_mutexattr_init()
+ *      pthread_mutexattr_destroy()
+ *      pthread_mutexattr_settype()
+ *      pthread_mutexattr_gettype()
+ *      pthread_mutex_init()
+ *      pthread_mutex_destroy()
+ *	pthread_mutex_lock()
+ *	pthread_mutex_unlock()
+ */
+
+#include "test.h"
+
+static int lockCount = 0;
+
+static pthread_mutex_t mutex;
+static pthread_mutexattr_t mxAttr;
+
+void * locker(void * arg)
+{
+  assert(pthread_mutex_lock(&mutex) == 0);
+  lockCount++;
+  assert(pthread_mutex_lock(&mutex) == 0);
+  lockCount++;
+  assert(pthread_mutex_unlock(&mutex) == 0);
+  assert(pthread_mutex_unlock(&mutex) == 0);
+
+  return (void *) 555;
+}
+ 
+int
+main()
+{
+  pthread_t t;
+  int result = 0;
+  int mxType = -1;
+
+  assert(pthread_mutexattr_init(&mxAttr) == 0);
+  assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_RECURSIVE) == 0);
+  assert(pthread_mutexattr_gettype(&mxAttr, &mxType) == 0);
+  assert(mxType == PTHREAD_MUTEX_RECURSIVE);
+
+  assert(pthread_mutex_init(&mutex, &mxAttr) == 0);
+
+  assert(pthread_create(&t, NULL, locker, NULL) == 0);
+
+  assert(pthread_join(t, (void **) &result) == 0);
+  assert(result == 555);
+
+  assert(lockCount == 2);
+
+  assert(pthread_mutex_destroy(&mutex) == 0);
+  assert(pthread_mutexattr_destroy(&mxAttr) == 0);
+
+  exit(0);
+
+  /* Never reached */
+  return 0;
+}