mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/* Heap memory allocator.
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*
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* Author: Steffen Vogel <post@steffenvogel.de>
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <cstdlib>
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#include <villas/exceptions.hpp>
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#include <villas/node/memory.hpp>
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#include <villas/utils.hpp>
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using namespace villas;
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using namespace villas::node;
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using namespace villas::utils;
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using namespace villas::node::memory;
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static struct Allocation *heap_alloc(size_t len, size_t alignment,
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struct Type *m) {
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int ret;
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auto *ma = new struct 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 heap_free(struct Allocation *ma, struct Type *m) {
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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 Type villas::node::memory::heap = {.name = "heap",
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.flags = (int)Flags::HEAP,
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.alignment = 1,
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.alloc = heap_alloc,
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.free = heap_free};
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