1 files changed, 60 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/malloc_deferred.c b/cpukit/libcsupport/src/malloc_deferred.c
new file mode 100644
index 0000000000..4289a899bc
--- /dev/null
+++ b/cpukit/libcsupport/src/malloc_deferred.c
@@ -0,0 +1,60 @@
+/*
+ *  Process free requests deferred because they were from ISR
+ *  or other critical section.
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  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.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef RTEMS_NEWLIB
+#include <stdlib.h>
+#include <errno.h>
+
+#include "malloc_p.h"
+
+rtems_chain_control RTEMS_Malloc_GC_list;
+
+bool malloc_is_system_state_OK(void)
+{
+  if ( _Thread_Dispatch_disable_level > 0 )
+    return false;
+
+  if ( _ISR_Nest_level > 0 )
+    return false;
+
+  return true;
+}
+
+void malloc_deferred_frees_initialize(void)
+{
+  rtems_chain_initialize_empty(&RTEMS_Malloc_GC_list);
+}
+
+void malloc_deferred_frees_process(void)
+{
+  rtems_chain_node  *to_be_freed;
+
+  /*
+   *  If some free's have been deferred, then do them now.
+   */
+  while ((to_be_freed = rtems_chain_get(&RTEMS_Malloc_GC_list)) != NULL)
+    free(to_be_freed);
+}
+
+void malloc_deferred_free(
+  void *pointer
+)
+{
+  rtems_chain_append(&RTEMS_Malloc_GC_list, (rtems_chain_node *)pointer);
+}
+#endif