1 files changed, 77 insertions, 0 deletions
diff --git a/trunk/TAO/tao/MMAP_Allocator.h b/trunk/TAO/tao/MMAP_Allocator.h
new file mode 100644
index 00000000000..08f3295ecfd
--- /dev/null
+++ b/trunk/TAO/tao/MMAP_Allocator.h
@@ -0,0 +1,77 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    MMAP_Allocator.h
+ *
+ *  $Id$
+ *
+ *  @author Ossama Othman <ossama@dre.vanderbilt.edu>
+ */
+//=============================================================================
+
+#ifndef TAO_MMAP_ALLOCATOR_H
+#define TAO_MMAP_ALLOCATOR_H
+
+#include /**/ "ace/pre.h"
+
+#include "tao/orbconf.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#if TAO_HAS_SENDFILE == 1
+
+#include "ace/Malloc_T.h"
+#include "ace/MMAP_Memory_Pool.h"
+#include "ace/Thread_Mutex.h"
+
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+// An ACE_Lite_MMAP_Memory_Pool is used since sync()ing is not
+// needed.  All memory allocated by the TAO_MMAP_Allocator is meant
+// for strictly transient data, not persistent.
+typedef ACE_Allocator_Adapter <ACE_Malloc<ACE_LITE_MMAP_MEMORY_POOL, ACE_SYNCH_MUTEX> > TAO_MMAP_Allocator_Base;
+
+/**
+ * @class TAO_MMAP_Allocator
+ *
+ * @brief mmap-based allocator.
+ *
+ * This class utilizes and
+ */
+class TAO_MMAP_Allocator
+  : public TAO_MMAP_Allocator_Base
+{
+public:
+
+  /// Constructor
+  TAO_MMAP_Allocator (void);
+
+  /// Destructor.
+  virtual ~TAO_MMAP_Allocator (void);
+
+  /// Return backing store handle.
+  ACE_HANDLE handle (void);
+
+  /// Return offset in backing store file for memory address @a p. If @a p
+  /// is not coming from this allocator -1 is returned.
+  off_t offset (void * p);
+
+private:
+
+  // Disallow copying.
+  TAO_MMAP_Allocator (TAO_MMAP_Allocator const &);
+  void operator= (TAO_MMAP_Allocator const &);
+
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#endif  /* TAO_HAS_SENDFILE==1 */
+
+#include /**/ "ace/post.h"
+
+#endif  /* TAO_MMAP_ALLOCATOR_H */