Add functions for greedy workspace allocation

Various tests must check program paths that result due to failed memory
allocations from the workspace.  To avoid tinkering with internal
workspace structures throughout the test code these functions should be
used.

1 files changed, 38 insertions, 0 deletions

diff --git a/cpukit/rtems/src/workspacegreedy.c b/cpukit/rtems/src/workspacegreedy.c
new file mode 100644
index 0000000000..6d8fd9b937
--- /dev/null
+++ b/cpukit/rtems/src/workspacegreedy.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/rtems/support.h>
+#include <rtems/score/wkspace.h>
+
+void *rtems_workspace_greedy_allocate( size_t remaining_free_space )
+{
+  void *opaque;
+
+  _Thread_Disable_dispatch();
+  opaque = _Heap_Greedy_allocate( &_Workspace_Area, remaining_free_space );
+  _Thread_Enable_dispatch();
+
+  return opaque;
+}
+
+void rtems_workspace_greedy_free( void *opaque )
+{
+  _Thread_Disable_dispatch();
+  _Heap_Greedy_free( &_Workspace_Area, opaque );
+  _Thread_Enable_dispatch();
+}