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https://git.rwth-aachen.de/acs/public/villas/node/
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70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
/** Heap memory allocator.
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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#include <cstdlib>
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#include <villas/utils.hpp>
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#include <villas/memory.h>
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#include <villas/exceptions.hpp>
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using namespace villas;
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using namespace villas::utils;
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static struct memory_allocation * memory_heap_alloc(size_t len, size_t alignment, struct memory_type *m)
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{
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int ret;
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auto *ma = new struct memory_allocation;
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if (!ma)
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throw MemoryAllocationError();
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ma->alignment = alignment;
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ma->type = m;
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ma->length = len;
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if (ma->alignment < sizeof(void *))
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ma->alignment = sizeof(void *);
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ret = posix_memalign(&ma->address, ma->alignment, ma->length);
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if (ret) {
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delete ma;
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return nullptr;
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}
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return ma;
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}
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static int memory_heap_free(struct memory_allocation *ma, struct memory_type *m)
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{
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free(ma->address);
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return 0;
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}
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/* List of available memory types */
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struct memory_type memory_heap = {
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.name = "heap",
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.flags = (int) MemoryFlags::HEAP,
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.alignment = 1,
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.alloc = memory_heap_alloc,
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.free = memory_heap_free
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};
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