45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
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* Copyright (C) 2022 NHR@FAU, University Erlangen-Nuremberg.
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* All rights reserved. This file is part of MD-Bench.
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* Use of this source code is governed by a LGPL-3.0
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* license that can be found in the LICENSE file.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <util.h>
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void *allocate(int alignment, size_t bytesize) {
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void *ptr;
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int errorCode;
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errorCode = posix_memalign(&ptr, alignment, bytesize);
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if(errorCode == EINVAL) {
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fprintf(stderr, "Error: Alignment parameter is not a power of two\n");
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exit(EXIT_FAILURE);
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}
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if(errorCode == ENOMEM) {
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fprintf(stderr, "Error: Insufficient memory to fulfill the request\n");
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exit(EXIT_FAILURE);
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}
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if(ptr == NULL) {
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fprintf(stderr, "Error: posix_memalign failed!\n");
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exit(EXIT_FAILURE);
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}
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return ptr;
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}
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void *reallocate(void* ptr, int alignment, size_t new_bytesize, size_t old_bytesize) {
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void *newarray = allocate(alignment, new_bytesize);
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if(ptr != NULL) {
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memcpy(newarray, ptr, old_bytesize);
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free(ptr);
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}
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return newarray;
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}
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