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@@ -0,0 +1,122 @@
+#ifndef CYGONCE_KERNEL_MEMPOLT2_HXX
+#define CYGONCE_KERNEL_MEMPOLT2_HXX
+
+//==========================================================================
+//
+//	mempolt2.hxx
+//
+//	Mempolt2 (Memory pool template) 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): 	hmt
+// Contributors:	hmt
+// Date:	1998-02-10
+// Purpose:	Define Mempolt2 class interface
+
+// Description: The class defined here provides the APIs for thread-safe,
+//              kernel-savvy memory managers; make a class with the
+//              underlying allocator as the template parameter.
+// Usage:	#include <cyg/kernel/mempolt2.hxx>
+//		
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <cyg/kernel/ktypes.h>
+#include <cyg/infra/cyg_ass.h>         // assertion macros
+#include <cyg/kernel/thread.hxx>
+
+template <class T>
+class Cyg_Mempolt2
+{
+private:
+    T pool;                             // underlying memory manager
+    Cyg_ThreadQueue queue;              // queue of waiting threads
+
+    class Mempolt2WaitInfo {
+    private:
+        Mempolt2WaitInfo() {}
+    public:
+        cyg_int32 size;
+        cyg_uint8 *addr;
+        Mempolt2WaitInfo( cyg_int32 allocsize )
+        { size = allocsize; addr = 0; }
+    };
+
+public:
+
+    CYGDBG_DEFINE_CHECK_THIS
+    
+    Cyg_Mempolt2(
+        cyg_uint8 *base,
+        cyg_int32 size,
+        CYG_ADDRWORD arg_thru );        // Constructor
+    ~Cyg_Mempolt2();                    // Destructor
+        
+    // get some memory; wait if none available; return NULL if failed
+    // due to interrupt
+    cyg_uint8 *alloc( cyg_int32 size );
+    
+#ifdef CYGFUN_KERNEL_THREADS_TIMER
+    // get some memory with a timeout; return NULL if failed
+    // due to interrupt or timeout
+    cyg_uint8 *alloc( cyg_int32 size, cyg_tick_count abs_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 *p, cyg_int32 size );
+
+    // if applicable: return -1 if not fixed size
+    cyg_int32 get_blocksize();
+
+    // is anyone waiting for memory?
+    cyg_bool waiting() { return ! queue.empty(); }
+
+    // these two are obvious and generic
+    cyg_int32 get_totalmem();
+    cyg_int32 get_freemem();
+
+    // get information about the construction parameters for external
+    // freeing after the destruction of the holding object.
+    void get_arena(
+        cyg_uint8 * &base,
+        cyg_int32 &size,
+        CYG_ADDRWORD &arg_thru );
+
+    // 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_MEMPOLT2_HXX
+// EOF mempolt2.hxx