09a263e607
git-subtree-dir: deps/memkind/src git-subtree-split: bb9f19dd1b3ed6cc5e1b35919564ccf6f4b32f69
119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY LOG OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <memkind.h>
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#include <stdio.h>
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#include <errno.h>
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#include <sys/stat.h>
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static char *PMEM_DIR = "/tmp/";
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static const size_t PMEM_PART_SIZE = MEMKIND_PMEM_MIN_SIZE + 4 * 1024;
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int main(int argc, char **argv)
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{
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const size_t size = 512;
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struct memkind *pmem_kind = NULL;
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struct stat st;
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const int arraySize = 100;
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char *ptr[100] = { NULL };
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int i = 0;
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int err = 0;
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if (argc > 2) {
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fprintf(stderr, "Usage: %s [pmem_kind_dir_path]", argv[0]);
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return 1;
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} else if (argc == 2) {
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if (stat(argv[1], &st) != 0 || !S_ISDIR(st.st_mode)) {
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fprintf(stderr, "%s : Invalid path to pmem kind directory", argv[1]);
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return 1;
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} else {
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PMEM_DIR = argv[1];
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}
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}
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fprintf(stdout,
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"This example shows how to use memkind_free with unknown kind as a parameter.\n");
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err = memkind_create_pmem(PMEM_DIR, PMEM_PART_SIZE, &pmem_kind);
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if (err) {
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perror("memkind_create_pmem()");
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fprintf(stderr, "Unable to create pmem partition err=%d errno=%d\n", err,
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errno);
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return errno ? -errno : 1;
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}
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for (i = 0; i < arraySize; ++i) {
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if (i < 50) {
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ptr[i] = memkind_malloc(MEMKIND_DEFAULT, size);
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if (ptr[i] == NULL) {
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perror("memkind_malloc()");
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fprintf(stderr, "Unable to allocate memkind default\n");
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return errno ? -errno : 1;
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}
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} else {
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ptr[i] = memkind_malloc(pmem_kind, size);
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if (ptr[i] == NULL) {
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perror("memkind_malloc()");
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fprintf(stderr, "Unable to allocate pmem\n");
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return errno ? -errno : 1;
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}
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}
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}
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fprintf(stdout,
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"Memory was successfully allocated in default kind and pmem kind.\n");
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sprintf(ptr[10], "Hello world from standard memory - ptr[10].\n");
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sprintf(ptr[40], "Hello world from standard memory - ptr[40].\n");
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sprintf(ptr[80], "Hello world from persistent memory - ptr[80].\n");
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fprintf(stdout, "%s", ptr[10]);
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fprintf(stdout, "%s", ptr[40]);
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fprintf(stdout, "%s", ptr[80]);
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fprintf(stdout, "Free memory without specifying kind.\n");
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for (i = 0; i < arraySize; ++i) {
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memkind_free(NULL, ptr[i]);
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}
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err = memkind_destroy_kind(pmem_kind);
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if (err) {
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perror("memkind_destroy_kind()");
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fprintf(stderr, "Unable to destroy pmem partition\n");
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return errno ? -errno : 1;
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}
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fprintf(stdout, "Memory was successfully released.\n");
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return 0;
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}
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