include/tools/mempool.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef _SVMEMPOOL_HXX
  20 #define _SVMEMPOOL_HXX
  21
  22 #include "sal/config.h"
  23
  24 #include "sal/macros.h"
  25 #include "tools/toolsdllapi.h"
  26 #include "tools/solar.h"
  27
  28 struct FixedMemPool_Impl;
  29
  30 class TOOLS_DLLPUBLIC FixedMemPool
  31 {
  32     FixedMemPool_Impl * m_pImpl;
  33     char const *        m_pTypeName;
  34
  35 public:
  36                     FixedMemPool( char const * pTypeName,
  37                                   sal_uInt16 nTypeSize );
  38                     ~FixedMemPool();
  39
  40     void*           Alloc();
  41     void            Free( void* p );
  42 };
  43
  44 #define DECL_FIXEDMEMPOOL_NEW_DECL() \
  45 static void * operator new( size_t n )
  46
  47 #define DECL_FIXEDMEMPOOL_NEW_IMPL( Class ) \
  48 void * Class::operator new( size_t n )
  49
  50 #define IMPL_FIXEDMEMPOOL_NEW_BODY( Class, aPool ) \
  51 { \
  52     if ( n == sizeof( Class ) ) \
  53         return (aPool).Alloc(); \
  54     else \
  55         return ::operator new(n); \
  56 }
  57
  58 #define DECL_FIXEDMEMPOOL_NEW_INLINE( Class, aPool ) \
  59 DECL_FIXEDMEMPOOL_NEW_DECL() \
  60 IMPL_FIXEDMEMPOOL_NEW_BODY( Class, aPool )
  61
  62 #define DECL_FIXEDMEMPOOL_DEL_DECL() \
  63 static void operator delete( void * p, size_t n )
  64
  65 #define DECL_FIXEDMEMPOOL_DEL_IMPL( Class ) \
  66 void Class::operator delete( void * p, size_t n )
  67
  68 #define IMPL_FIXEDMEMPOOL_DEL_BODY( Class, aPool ) \
  69 { \
  70     if ( n == sizeof( Class ) ) \
  71         (aPool).Free(p); \
  72     else \
  73         ::operator delete(p); \
  74 }
  75
  76 #define DECL_FIXEDMEMPOOL_DEL_INLINE( Class, aPool ) \
  77 DECL_FIXEDMEMPOOL_DEL_DECL() \
  78 IMPL_FIXEDMEMPOOL_DEL_BODY( Class, aPool )
  79
  80 #define DECL_FIXEDMEMPOOL_NEWDEL( Class ) \
  81     private: \
  82         static FixedMemPool aPool; \
  83     public: \
  84         DECL_FIXEDMEMPOOL_NEW_INLINE( Class, aPool ) \
  85         DECL_FIXEDMEMPOOL_DEL_INLINE( Class, aPool )
  86
  87 #define IMPL_FIXEDMEMPOOL_NEWDEL( Class ) \
  88     FixedMemPool Class::aPool( SAL_STRINGIFY( Class ), sizeof( Class ) );
  89
  90 #define DECL_FIXEDMEMPOOL_NEWDEL_DLL( Class ) \
  91     private: \
  92         static FixedMemPool aPool; \
  93     public: \
  94         DECL_FIXEDMEMPOOL_NEW_DECL(); \
  95         DECL_FIXEDMEMPOOL_DEL_DECL();
  96
  97 #define IMPL_FIXEDMEMPOOL_NEWDEL_DLL( Class ) \
  98     FixedMemPool Class::aPool( SAL_STRINGIFY( Class ), sizeof( Class ) ); \
  99     DECL_FIXEDMEMPOOL_NEW_IMPL( Class ) \
 100     IMPL_FIXEDMEMPOOL_NEW_BODY( Class, aPool ) \
 101     DECL_FIXEDMEMPOOL_DEL_IMPL( Class ) \
 102     IMPL_FIXEDMEMPOOL_DEL_BODY( Class, aPool )
 103
 104 #endif
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */