125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
/*
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* $Id$
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*
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Copyright (c) 2006-2019 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <qse/cmn/Mmgr.hpp>
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#include <qse/cmn/StdMmgr.hpp>
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#include "mem-prv.h"
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/////////////////////////////////
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QSE_BEGIN_NAMESPACE(QSE)
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/////////////////////////////////
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void* Mmgr::alloc_mem (mmgr_t* mmgr, qse_size_t n) QSE_CPP_NOEXCEPT
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{
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return ((Mmgr*)mmgr->ctx)->allocMem (n);
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}
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void* Mmgr::realloc_mem (mmgr_t* mmgr, void* ptr, qse_size_t n) QSE_CPP_NOEXCEPT
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{
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return ((Mmgr*)mmgr->ctx)->reallocMem (ptr, n);
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}
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void Mmgr::free_mem (mmgr_t* mmgr, void* ptr) QSE_CPP_NOEXCEPT
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{
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((Mmgr*)mmgr->ctx)->freeMem (ptr);
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}
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void* Mmgr::callocate (qse_size_t n, bool raise_exception) /*QSE_CPP_THREXCEPT1(MemoryError)*/
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{
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void* ptr = this->allocate(n, raise_exception);
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if (ptr) QSE_MEMSET (ptr, 0, n);
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return ptr;
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}
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#if 0
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#if defined(__GNUC__)
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static StdMmgr __attribute__((init_priority(101))) std_dfl_mmgr; //<- this solved the problem
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#else
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static StdMmgr std_dfl_mmgr; //<-- has an issue for undefined initialization order
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#endif
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Mmgr* Mmgr::dfl_mmgr = &std_dfl_mmgr;
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//Mmgr* Mmgr::dfl_mmgr = StdMmgr::getInstance(); //<--- has an issue as well
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Mmgr* Mmgr::getDFL () QSE_CPP_NOEXCEPT
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{
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return Mmgr::dfl_mmgr;
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}
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#else
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// C++ initialization order across translation units are not defined.
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// so it's tricky to work around this... the init_priority attribute
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// can solve this problem. but it's compiler dependent.
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// Mmgr::getDFL() resets dfl_mmgr to &std_dfl_mmgr if it's NULL.
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Mmgr* Mmgr::dfl_mmgr = QSE_NULL;
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Mmgr* Mmgr::getDFL () QSE_CPP_NOEXCEPT
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{
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static StdMmgr std_dfl_mmgr;
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Mmgr* mmgr = Mmgr::dfl_mmgr;
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return mmgr? mmgr: &std_dfl_mmgr;
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}
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#endif
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void Mmgr::setDFL (Mmgr* mmgr) QSE_CPP_NOEXCEPT
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{
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Mmgr::dfl_mmgr = mmgr;
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}
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/////////////////////////////////
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QSE_END_NAMESPACE(QSE)
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/////////////////////////////////
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void* operator new (qse_size_t size, QSE::Mmgr* mmgr) /*QSE_CPP_THREXCEPT1(QSE::Mmgr::MemoryError)*/
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{
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return mmgr->allocate (size);
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}
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#if defined(QSE_CPP_NO_OPERATOR_DELETE_OVERLOADING)
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void qse_operator_delete (void* ptr, QSE::Mmgr* mmgr)
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#else
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void operator delete (void* ptr, QSE::Mmgr* mmgr)
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#endif
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{
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mmgr->dispose (ptr);
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}
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void* operator new (qse_size_t size, QSE::Mmgr* mmgr, void* existing_ptr) /*QSE_CPP_THREXCEPT1(QSE::Mmgr::MemoryError)*/
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{
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// mmgr unused. i put it in the parameter list to make this function
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// less conflicting with the stock ::operator new() that doesn't allocate.
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return existing_ptr;
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}
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#if 0
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void* operator new[] (qse_size_t size, QSE::Mmgr* mmgr)
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{
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return mmgr->allocate (size);
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}
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void operator delete[] (void* ptr, QSE::Mmgr* mmgr)
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{
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mmgr->dispose (ptr);
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}
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#endif
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