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28 lines
720 B
C++
28 lines
720 B
C++
/** Memory managment.
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*
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* Author: Daniel Krebs <github@daniel-krebs.net>
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* SPDX-FileCopyrightText: 2017 Institute for Automation of Complex Power Systems, EONERC
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* SPDX-License-Identifier: Apache-2.0
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*********************************************************************************/
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#include <sys/mman.h>
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#include <unistd.h>
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#include <villas/memory.hpp>
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using namespace villas;
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bool
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HostRam::free(void* addr, size_t length)
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{
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return munmap(addr, length) == 0;
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}
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void*
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HostRam::allocate(size_t length, int flags)
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{
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const int mmap_flags = flags | MAP_PRIVATE | MAP_ANONYMOUS | MAP_32BIT;
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const int mmap_protection = PROT_READ | PROT_WRITE;
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return mmap(nullptr, length, mmap_protection, mmap_flags, 0, 0);
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}
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