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, 34 insertions, 0 deletions

diff --git a/testsuites/psxtests/psxhdrs/pthread/pthread_getconcurrency.c b/testsuites/psxtests/psxhdrs/pthread/pthread_getconcurrency.c
new file mode 100644
index 0000000000..dda472030e
--- /dev/null
+++ b/testsuites/psxtests/psxhdrs/pthread/pthread_getconcurrency.c
@@ -0,0 +1,34 @@
+/**
+ *  @file
+ *  @brief pthread_getconcurrency() API Conformance Test
+ */
+
+/*
+ *  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 <pthread.h>
+
+#ifndef _POSIX_THREADS
+#error "rtems is supposed to have pthread_getconcurrency"
+#endif
+
+int test( void );
+
+int test( void )
+{
+  int level;
+
+  level = pthread_getconcurrency();
+
+  return (level == 0);
+}