* 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/cleanup2.c

@@ -0,0 +1,157 @@
+/*
+ * File: cleanup2.c
+ *
+ * Test Synopsis: Test cleanup handler executes (when thread is not canceled).
+ *
+ * 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:
+ * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
+ *   pthread_testcancel, pthread_cancel, pthread_join
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+
+#include "test.h"
+
+/*
+ * Create NUMTHREADS threads in addition to the Main thread.
+ */
+enum {
+  NUMTHREADS = 10
+};
+
+typedef struct bag_t_ bag_t;
+struct bag_t_ {
+  int threadnum;
+  int started;
+  /* Add more per-thread state variables here */
+  int count;
+};
+
+static bag_t threadbag[NUMTHREADS + 1];
+
+static int pop_count = 0;
+
+static void
+increment_pop_count(void * arg)
+{
+  int * c = (int *) arg;
+
+  (*c)++;
+}
+
+void *
+mythread(void * arg)
+{
+  int result = 0;
+  bag_t * bag = (bag_t *) arg;
+
+  assert(bag == &threadbag[bag->threadnum]);
+  assert(bag->started == 0);
+  bag->started = 1;
+
+  pthread_cleanup_push(increment_pop_count, (void *) &pop_count);
+
+  sched_yield();
+
+  pthread_cleanup_pop(1);
+
+  return (void *) result;
+}
+
+int
+main()
+{
+  int failed = 0;
+  int i;
+  pthread_t t[NUMTHREADS + 1];
+
+  assert((t[0] = pthread_self()) != NULL);
+
+  for (i = 1; i <= NUMTHREADS; i++)
+    {
+      threadbag[i].started = 0;
+      threadbag[i].threadnum = i;
+      assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0);
+    }
+
+  /*
+   * Code to control or munipulate child threads should probably go here.
+   */
+  Sleep(1000);
+
+  /*
+   * Standard check that all threads started.
+   */
+  for (i = 1; i <= NUMTHREADS; i++)
+    { 
+      if (!threadbag[i].started)
+	{
+	  failed |= !threadbag[i].started;
+	  fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
+	}
+    }
+
+  assert(!failed);
+
+  /*
+   * Check any results here. Set "failed" and only print output on failure.
+   */
+  failed = 0;
+  for (i = 1; i <= NUMTHREADS; i++)
+    {
+      int fail = 0;
+      int result = 0;
+
+      assert(pthread_join(t[i], (void **) &result) == 0);
+
+      fail = (result != 0);
+
+      if (fail)
+	{
+	  fprintf(stderr, "Thread %d: started %d: result: %d\n",
+		  i,
+		  threadbag[i].started,
+		  result);
+	}
+      failed = (failed || fail);
+    }
+
+  assert(!failed);
+
+  assert(pop_count == NUMTHREADS);
+
+  /*
+   * Success.
+   */
+  return 0;
+}
+