Source code
Revision control
Copy as Markdown
Other Tools
/***************************************************************************************************
Zyan Core Library (Zycore-C)
Original Author : Florian Bernd
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
***************************************************************************************************/
#include "zydis/Zycore/Allocator.h"
#include "zydis/Zycore/LibC.h"
/* ============================================================================================== */
/* Internal functions */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Default allocator */
/* ---------------------------------------------------------------------------------------------- */
#ifndef ZYAN_NO_LIBC
static ZyanStatus ZyanAllocatorDefaultAllocate(ZyanAllocator* allocator, void** p,
ZyanUSize element_size, ZyanUSize n)
{
ZYAN_ASSERT(allocator);
ZYAN_ASSERT(p);
ZYAN_ASSERT(element_size);
ZYAN_ASSERT(n);
ZYAN_UNUSED(allocator);
*p = ZYAN_MALLOC(element_size * n);
if (!*p)
{
return ZYAN_STATUS_NOT_ENOUGH_MEMORY;
}
return ZYAN_STATUS_SUCCESS;
}
static ZyanStatus ZyanAllocatorDefaultReallocate(ZyanAllocator* allocator, void** p,
ZyanUSize element_size, ZyanUSize n)
{
ZYAN_ASSERT(allocator);
ZYAN_ASSERT(p);
ZYAN_ASSERT(element_size);
ZYAN_ASSERT(n);
ZYAN_UNUSED(allocator);
void* const x = ZYAN_REALLOC(*p, element_size * n);
if (!x)
{
return ZYAN_STATUS_NOT_ENOUGH_MEMORY;
}
*p = x;
return ZYAN_STATUS_SUCCESS;
}
static ZyanStatus ZyanAllocatorDefaultDeallocate(ZyanAllocator* allocator, void* p,
ZyanUSize element_size, ZyanUSize n)
{
ZYAN_ASSERT(allocator);
ZYAN_ASSERT(p);
ZYAN_ASSERT(element_size);
ZYAN_ASSERT(n);
ZYAN_UNUSED(allocator);
ZYAN_UNUSED(element_size);
ZYAN_UNUSED(n);
ZYAN_FREE(p);
return ZYAN_STATUS_SUCCESS;
}
#endif // ZYAN_NO_LIBC
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */
/* Exported functions */
/* ============================================================================================== */
ZyanStatus ZyanAllocatorInit(ZyanAllocator* allocator, ZyanAllocatorAllocate allocate,
ZyanAllocatorAllocate reallocate, ZyanAllocatorDeallocate deallocate)
{
if (!allocator || !allocate || !reallocate || !deallocate)
{
return ZYAN_STATUS_INVALID_ARGUMENT;
}
allocator->allocate = allocate;
allocator->reallocate = reallocate;
allocator->deallocate = deallocate;
return ZYAN_STATUS_SUCCESS;
}
#ifndef ZYAN_NO_LIBC
ZyanAllocator* ZyanAllocatorDefault(void)
{
static ZyanAllocator allocator =
{
&ZyanAllocatorDefaultAllocate,
&ZyanAllocatorDefaultReallocate,
&ZyanAllocatorDefaultDeallocate
};
return &allocator;
}
#endif
/* ============================================================================================== */