* 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/inherit1.c

@@ -0,0 +1,99 @@
+/*
+ * File: inherit1.c
+ *
+ * Test Synopsis:
+ * - Test thread priority inheritance.
+ *
+ * Test Method (Validation or Falsification):
+ * - 
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+
+#include "test.h"
+
+void * func(void * arg)
+{
+  int policy;
+  struct sched_param param;
+
+  assert(pthread_getschedparam(pthread_self(), &policy, &param) == 0);
+  return (void *) param.sched_priority;
+}
+
+int
+main()
+{
+  pthread_t t;
+  pthread_t mainThread = pthread_self();
+  pthread_attr_t attr;
+  void * result = NULL;
+  struct sched_param param;
+  struct sched_param mainParam;
+  int maxPrio;
+  int minPrio;
+  int prio;
+  int policy;
+  int inheritsched = -1;
+
+  assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1);
+  assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1);
+
+  assert(pthread_attr_init(&attr) == 0);
+  assert(pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED) == 0);
+  assert(pthread_attr_getinheritsched(&attr, &inheritsched) == 0);
+  assert(inheritsched == PTHREAD_INHERIT_SCHED);
+
+  for (prio = minPrio; prio < maxPrio; prio++)
+    {
+      mainParam.sched_priority = prio;
+
+      /* Change the main thread priority */
+      assert(pthread_setschedparam(mainThread, SCHED_OTHER, &mainParam) == 0);
+      assert(pthread_getschedparam(mainThread, &policy, &mainParam) == 0);
+      assert(policy == SCHED_OTHER);
+      assert(mainParam.sched_priority == prio);
+
+      for (param.sched_priority = prio;
+           param.sched_priority <= maxPrio;
+           param.sched_priority++)
+        {
+          /* The new thread create should ignore this new priority */
+          assert(pthread_attr_setschedparam(&attr, &param) == 0);
+          assert(pthread_create(&t, &attr, func, NULL) == 0);
+          pthread_join(t, &result);
+          assert((int) result == mainParam.sched_priority);
+        }
+    }
+
+  return 0;
+}