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added missed HeapMmgr files

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hyung-hwan
2015-02-02 13:41:10 +00:00
parent bb1d41d4d0
commit ac6661de94
4 changed files with 167 additions and 0 deletions
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63
qse/include/qse/cmn/HeapMmgr.hpp Normal file
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@ -0,0 +1,63 @@
/*
* $Id$
*
Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _QSE_CMN_HEAPMMGR_HPP_
#define _QSE_CMN_HEAPMMGR_HPP_
#include <qse/cmn/Mmgr.hpp>
#include <qse/cmn/Mmged.hpp>
#include <qse/cmn/xma.h>
/////////////////////////////////
QSE_BEGIN_NAMESPACE(QSE)
/////////////////////////////////
/// The HeapMmgr class implements the heap-based memory manager interface.
/// It is a memory manager that's memory managed by another memory manager.
class QSE_EXPORT HeapMmgr: public Mmgr, public Mmged
{
public:
HeapMmgr (Mmgr* mmgr, qse_size_t heap_size, bool raise_exception = true);
~HeapMmgr ();
void* allocMem (qse_size_t n);
void* reallocMem (void* ptr, qse_size_t n);
void freeMem (void* ptr);
// the library does not provide a stock instance of this class
//static HeapMmgr* getInstance ();
protected:
qse_xma_t* xma;
qse_size_t heap_size;
};
/////////////////////////////////
QSE_END_NAMESPACE(QSE)
/////////////////////////////////
#endif

11
qse/include/qse/cmn/Mmgr.hpp
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@ -66,6 +66,10 @@ public:
///
Mmgr (bool raise_exception = true): raise_exception (raise_exception)
{
// NOTE:
// the #qse_mmgr_t interface is not affected by raise_exception
// because direct calls to the virtual functions that don't raise
// exceptions are made via bridge functions below.
this->alloc = alloc_mem;
this->realloc = realloc_mem;
this->free = free_mem;
@ -170,6 +174,13 @@ void* operator new (qse_size_t size, QSE::Mmgr* mmgr);
void operator delete (void* ptr, QSE::Mmgr* mmgr);
#if 0
// i found no way to delete an array allocated with
// the placement new operator. if the array element is an instance
// of a class, the pointer returned by the new operator call
// may not be the actual pointer allocated. some compilers
// seem to put some information about the array at the
// beginning of the allocated memory and return the pointer
// off a few bytes from the beginning.
void* operator new[] (qse_size_t size, QSE::Mmgr* mmgr);
void operator delete[] (void* ptr, QSE::Mmgr* mmgr);
#endif

2
qse/include/qse/cmn/StdMmgr.hpp
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@ -40,6 +40,8 @@ QSE_BEGIN_NAMESPACE(QSE)
class QSE_EXPORT StdMmgr: public Mmgr
{
public:
StdMmgr (bool raise_exception = true): Mmgr (raise_exception) {}
void* allocMem (qse_size_t n);
void* reallocMem (void* ptr, qse_size_t n);
void freeMem (void* ptr);

91
qse/lib/cmn/HeapMmgr.cpp Normal file
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@ -0,0 +1,91 @@
/*
* $Id$
*
Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <qse/cmn/HeapMmgr.hpp>
#include <qse/cmn/xma.h>
/////////////////////////////////
QSE_BEGIN_NAMESPACE(QSE)
/////////////////////////////////
struct xma_xtn_t
{
HeapMmgr* heap;
};
HeapMmgr::HeapMmgr (Mmgr* mmgr, qse_size_t heap_size, bool raise_exception):
Mmgr(raise_exception), Mmged(mmgr), xma(QSE_NULL), heap_size (heap_size)
{
}
HeapMmgr::~HeapMmgr ()
{
if (this->xma) qse_xma_close (this->xma);
}
void* HeapMmgr::allocMem (qse_size_t n)
{
if (!this->xma)
{
this->xma = qse_xma_open (this->getMmgr(), QSE_SIZEOF(xma_xtn_t), heap_size);
if (!this->xma) return QSE_NULL;
xma_xtn_t* xtn = (xma_xtn_t*)qse_xma_getxtn (this->xma);
xtn->heap = this;
}
void* xptr = qse_xma_alloc (this->xma, n);
if (!xptr) QSE_THROW (MemoryError);
return xptr;
}
void* HeapMmgr::reallocMem (void* ptr, qse_size_t n)
{
if (!this->xma)
{
this->xma = qse_xma_open (this->getMmgr(), QSE_SIZEOF(xma_xtn_t), heap_size);
if (!this->xma) return QSE_NULL;
xma_xtn_t* xtn = (xma_xtn_t*)qse_xma_getxtn (this->xma);
xtn->heap = this;
}
void* xptr = qse_xma_realloc (this->xma, ptr, n);
if (!xptr) QSE_THROW (MemoryError);
return xptr;
}
void HeapMmgr::freeMem (void* ptr)
{
if (this->xma)
{
qse_xma_free (this->xma, ptr);
}
}
/////////////////////////////////
QSE_END_NAMESPACE(QSE)
/////////////////////////////////