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/*
* Copyright (C) 2013-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "auto_buffer.h"
#include <new> // for std::bad_alloc
#include <stdlib.h> // for malloc(), realloc() and free()
using namespace XUTILS;
auto_buffer::auto_buffer(size_t size)
{
if (!size)
return;
p = malloc(size); // "malloc()" instead of "new" allow to use "realloc()"
if (!p)
throw std::bad_alloc();
s = size;
}
auto_buffer::~auto_buffer()
{
free(p);
}
auto_buffer& auto_buffer::allocate(size_t size)
{
clear();
if (size)
{
p = malloc(size);
if (!p)
throw std::bad_alloc();
s = size;
}
return *this;
}
auto_buffer& auto_buffer::resize(size_t newSize)
{
if (!newSize)
return clear();
void* newPtr = realloc(p, newSize);
if (!newPtr)
throw std::bad_alloc();
p = newPtr;
s = newSize;
return *this;
}
auto_buffer& auto_buffer::clear(void)
{
free(p);
p = 0;
s = 0;
return *this;
}
auto_buffer& auto_buffer::attach(void* pointer, size_t size)
{
clear();
if ((pointer && size) || (!pointer && !size))
{
p = pointer;
s = size;
}
return *this;
}
void* auto_buffer::detach(void)
{
void* returnPtr = p;
p = 0;
s = 0;
return returnPtr;
}
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