/********************************************************************
* Function:
*
* Purpose:
*
* Arguments:
*
* Returns:
*
********************************************************************/
void * DCE2_ReAlloc(void *old_mem, uint32_t old_size, uint32_t new_size, DCE2_MemType mtype)
{
void *new_mem;
DCE2_Ret status;
if (dce2_mem_state == DCE2_MEM_STATE__MEMCAP)
return NULL;
if (old_mem == NULL)
{
DCE2_Log(DCE2_LOG_TYPE__ERROR,
"%s(%d) Old memory passed in was NULL.",
__FILE__, __LINE__);
return NULL;
}
else if (new_size < old_size)
{
DCE2_Log(DCE2_LOG_TYPE__ERROR,
"%s(%d) New size is less than old size.",
__FILE__, __LINE__);
return NULL;
}
else if (new_size == old_size)
{
return old_mem;
}
if (DCE2_CheckMemcap(new_size - old_size, mtype) == DCE2_MEMCAP_EXCEEDED)
return NULL;
new_mem = DCE2_Alloc(new_size, mtype);
if (new_mem == NULL)
return NULL;
status = DCE2_Memcpy(new_mem, old_mem, old_size,
new_mem, (void *)((uint8_t *)new_mem + new_size));
if (status != DCE2_RET__SUCCESS)
{
DCE2_Log(DCE2_LOG_TYPE__ERROR,
"%s(%d) Failed to copy old memory into new memory.",
__FILE__, __LINE__);
DCE2_Free(new_mem, new_size, mtype);
return NULL;
}
DCE2_Free(old_mem, old_size, mtype);
return new_mem;
}
/********************************************************************
* Function:
*
* Purpose:
*
* Arguments:
*
* Returns:
*
********************************************************************/
void * DCE2_Alloc(uint32_t size, DCE2_MemType mtype)
{
void *mem;
if (DCE2_CheckMemcap(size, mtype) != DCE2_MEMCAP_OK)
return NULL;
mem = calloc(1, (size_t)size);
if (mem == NULL)
{
DCE2_Die("%s(%d) Out of memory!", __FILE__, __LINE__);
}
DCE2_RegMem(size, mtype);
return mem;
}