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+#ifndef CYGONCE_KERNEL_MEMVAR_HXX
+#define CYGONCE_KERNEL_MEMVAR_HXX
+
+//==========================================================================
+//
+//	memvar.hxx
+//
+//	Memory pool with variable block class declarations
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): 	dsm
+// Contributors:	dsm
+// Date:	1998-05-21
+// Purpose:	Define Memvar class interface
+// Description:	Inline class for constructing a variable block allocator
+// Usage:	#include <cyg/kernel/memvar.hxx>
+//		
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <cyg/kernel/ktypes.h>         // kernel types
+#include <cyg/infra/cyg_ass.h>         // assertion macros
+
+#ifdef CYGIMP_MEM_USE_MEMPOOLT_PLAIN
+#include <cyg/kernel/mempoolt.hxx>     // kernel safe mempool template
+#else
+#include <cyg/kernel/mempolt2.hxx>     // kernel safe mempool template
+#endif
+
+#include <cyg/kernel/mvarimpl.hxx>     // implementation of a variable mem pool
+
+class Cyg_Mempool_Variable {
+private:
+#ifdef CYGIMP_MEM_USE_MEMPOOLT_PLAIN
+    Cyg_Mempoolt<Cyg_Mempool_Variable_Implementation> mypool;
+#else
+    Cyg_Mempolt2<Cyg_Mempool_Variable_Implementation> mypool;
+#endif
+
+public:
+    // this API makes concrete a class which implements a thread-safe
+    // kernel-savvy memory pool which manages variable size blocks.
+
+    CYGDBG_DEFINE_CHECK_THIS
+    
+    // Constructor: gives the base and size of the arena in which memory is
+    // to be carved out, note that management structures are taken from the
+    // same arena.  Alignment is the alignment of allocated blocks.
+    Cyg_Mempool_Variable(
+        cyg_uint8 * /* base */,
+        cyg_int32   /* size */);
+
+    // Destructor
+    ~Cyg_Mempool_Variable();
+
+    // get some memory; wait if none available
+    cyg_uint8 *
+    alloc(cyg_int32 /* size */);
+    
+#ifdef CYGFUN_KERNEL_THREADS_TIMER
+    // get some memory with a timeout
+    cyg_uint8 *
+    alloc(cyg_int32 /* size */, cyg_tick_count /* delay_timeout */ );
+#endif
+
+    // get some memory, return NULL if none available
+    cyg_uint8 *
+    try_alloc(cyg_int32 /* size */ );
+    
+    // free the memory back to the pool
+    cyg_bool
+    free( cyg_uint8 * /* ptr */, cyg_int32 /* size */ );
+
+    // is anyone waiting for memory?
+    cyg_bool
+    waiting( void );
+
+    // read the fixed allocation size (-1 indicates variable)
+    cyg_int32
+    get_blocksize( void );
+
+    // these two are obvious and generic
+    cyg_int32
+    get_totalmem( void );
+
+    cyg_int32
+    get_freemem( void );
+
+    // get information about the construction parameters for external
+    // freeing after the destruction of the holding object
+    // also finds largest free block
+    void
+    get_arena( cyg_uint8 * &  /* base */, cyg_int32 & /* size */,
+               CYG_ADDRWORD & /* maxfree */ );
+
+    // Return the size of the memory allocation (previously returned 
+    // by alloc() or try_alloc() ) at ptr. Returns -1 if not found
+    cyg_int32
+    get_allocation_size( cyg_uint8 * /* ptr */ );
+};
+
+#endif // ifndef CYGONCE_KERNEL_MEMVAR_HXX
+// EOF memvar.hxx