Add pthread_getconcurrency() and pthread_setconcurrency()

This is the very simple implementation specified by the Open Group
for implementations with 1:1 kernel thread to user thread mappings.

http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_getconcurrency.html

updates #2680.

1 files changed, 58 insertions, 0 deletions

diff --git a/testsuites/psxtests/psxconcurrency01/init.c b/testsuites/psxtests/psxconcurrency01/init.c
new file mode 100644
index 0000000000..60aef9230d
--- /dev/null
+++ b/testsuites/psxtests/psxconcurrency01/init.c
@@ -0,0 +1,58 @@
+/*
+ *  COPYRIGHT (c) 2016
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <pmacros.h>
+#include <pthread.h>
+#include <errno.h>
+
+const char rtems_test_name[] = "PSXCONCURRENCY01";
+
+/* forward declarations to avoid warnings */
+void *POSIX_Init(void *argument);
+
+void *POSIX_Init(
+  void *argument
+)
+{
+  int  sc;
+
+  TEST_BEGIN();
+
+  puts( "Init: pthread_getconcurrency - initial value of 0" );
+  sc = pthread_getconcurrency();
+  rtems_test_assert( sc == 0 );
+
+  puts( "Init: pthread_setconcurrency - set value to 2" );
+  sc = pthread_setconcurrency( 2 );
+  rtems_test_assert( sc == 0 );
+
+  puts( "Init: pthread_getconcurrency - confirm new value of 2" );
+  sc = pthread_getconcurrency();
+  rtems_test_assert( sc == 2 );
+
+  TEST_END();
+  rtems_test_exit(0);
+}
+
+
+/* configuration information */
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_MAXIMUM_POSIX_THREADS     1
+#define CONFIGURE_POSIX_INIT_THREAD_TABLE
+
+#define CONFIGURE_INIT
+#include <rtems/confdefs.h>