7c1ac7bb67
* src/ObstackAlloc.h: ... this. The problem is that alloc.h is a system header in g++ < 3.0, and Darwin has a case-insensitive filesystem. System headers that include alloc.h pick the local Alloc.h version. * BuchiAutomaton.h, Configuration.h, DispUtil.cc, ExternalTranslator.h, FormulaRandomizer.h, Graph.h.in, LtlFormula.h, Makefile.am, NeverClaimAutomaton.h, PathEvaluator.h, ProductAutomaton.h, SccIterator.h, SharedTestData.h, StatDisplay.h, StateSpace.h, StateSpaceRandomizer.cc, StringUtil.h, TestOperations.h, TestRoundInfo.h, TestStatistics.h, UserCommandReader.h, UserCommands.h, main.cc: Adjust includes.
166 lines
5.3 KiB
C++
166 lines
5.3 KiB
C++
/*
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* Copyright (C) 1999, 2000, 2001, 2002, 2003
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* Heikki Tauriainen <Heikki.Tauriainen@hut.fi>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef ALLOC_H
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#define ALLOC_H
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#include <config.h>
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#ifdef HAVE_SINGLE_CLIENT_ALLOC
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#define ALLOC(typename) single_client_alloc
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#else
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#define ALLOC(typename) allocator<typename>
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#endif /* HAVE_SINGLE_CLIENT_ALLOC */
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#ifdef HAVE_OBSTACK_H
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/* GNU libc 2.3's copy of obstack.h uses a definition of __INT_TO_PTR
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which does not compile in C++. Fortunately it will not override
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an existing definition. */
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#if __GLIBC__ == 2 && __GLIBC_MINOR__ == 3
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# define __INT_TO_PTR(P) ((P) + (char *) 0)
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#endif
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#include <obstack.h>
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#include <cstdlib>
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#include <new>
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/******************************************************************************
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*
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* A wrapper class for allocating memory through an obstack.
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*
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*****************************************************************************/
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class ObstackAllocator
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{
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public:
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ObstackAllocator(); /* Constructor. */
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~ObstackAllocator(); /* Destructor. */
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void* alloc(int size); /* Allocates memory. */
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void free(void* obj); /* Deallocates memory. */
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static void failure(); /* Callback function for
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* reporting a memory
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* allocation failure.
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*/
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private:
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ObstackAllocator(const ObstackAllocator&); /* Prevent copying and */
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ObstackAllocator& operator= /* assignment of */
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(const ObstackAllocator&); /* ObstackAllocator
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* objects.
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*/
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struct obstack store; /* The obstack. */
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};
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#define obstack_chunk_alloc std::malloc
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#define obstack_chunk_free std::free
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/******************************************************************************
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*
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* Inline function definitions for class ObstackAllocator.
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*
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*****************************************************************************/
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/* ========================================================================= */
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inline ObstackAllocator::ObstackAllocator()
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/* ----------------------------------------------------------------------------
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*
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* Description: Constructor for class ObstackAllocator.
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*
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* Arguments: None.
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*
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* Returns: Nothing.
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*
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* ------------------------------------------------------------------------- */
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{
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obstack_init(&store);
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}
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/* ========================================================================= */
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inline ObstackAllocator::~ObstackAllocator()
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/* ----------------------------------------------------------------------------
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*
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* Description: Destructor for class ObstackAllocator.
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*
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* Arguments: None.
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*
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* Returns: Nothing.
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*
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* ------------------------------------------------------------------------- */
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{
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obstack_free(&store, NULL);
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}
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/* ========================================================================= */
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inline void* ObstackAllocator::alloc(int size)
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/* ----------------------------------------------------------------------------
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*
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* Description: Interface to the memory allocator.
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*
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* Argument: size -- Number of bytes to allocate.
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*
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* Returns: A pointer to the beginning of the newly allocated memory.
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*
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* ------------------------------------------------------------------------- */
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{
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return obstack_alloc(&store, size);
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}
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/* ========================================================================= */
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inline void ObstackAllocator::free(void* obj)
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/* ----------------------------------------------------------------------------
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*
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* Description: Interface to the memory deallocation function.
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*
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* Argument: obj -- A pointer to the object to deallocate. (Because the
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* underlying memory allocator is an obstack, freeing
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* an object also releases all objects allocated after
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* the given object.)
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*
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* Returns: Nothing.
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*
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* ------------------------------------------------------------------------- */
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{
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obstack_free(&store, obj);
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}
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/* ========================================================================= */
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inline void ObstackAllocator::failure()
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/* ----------------------------------------------------------------------------
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*
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* Description: Callback function for reporting memory allocation failures.
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*
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* Arguments: None.
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*
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* Returns: Nothing.
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*
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* ------------------------------------------------------------------------- */
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{
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throw std::bad_alloc();
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}
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#endif /* HAVE_OBSTACK_H */
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#endif /* !ALLOC_H */
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