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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/ValidationKit/snippets/alloc-1.c
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/ValidationKit/snippets/alloc-1.c')
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1 files changed, 110 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/snippets/alloc-1.c b/src/VBox/ValidationKit/snippets/alloc-1.c
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+/* $Id: alloc-1.c $ */
+/** @file
+ * Allocate lots of memory, portable ANSI C code.
+ */
+
+/*
+ * Copyright (C) 2007-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include <stdlib.h>
+#include <stdio.h>
+
+
+int main(int argc, char **argv)
+{
+ unsigned uPct;
+ unsigned long cbDone;
+ unsigned long cMBs = 1024;
+ unsigned long cb;
+
+ /*
+ * Some quick and dirty argument parsing.
+ */
+ if (argc == 2)
+ cMBs = strtoul(argv[1], 0, 0);
+ if (!cMBs || argc > 2)
+ {
+ printf("usage: alloc-1 [MBs]\n");
+ return 1;
+ }
+ cb = cMBs * 1024 * 1024;
+ if (cb / (1024 * 1024) != cMBs)
+ cb = ~(unsigned long)0 / (1024 * 1024) * (1024 * 1024);
+ printf("alloc-1: allocating %lu MB (%lu bytes)\n", cb/1024/1024, cb);
+
+ /*
+ * The allocation loop.
+ */
+ printf("alloc-1: 0%%");
+ fflush(stdout);
+ cbDone = 0;
+ uPct = 0;
+ while (cbDone < cb)
+ {
+ unsigned uPctNow;
+ unsigned long cbThis = cb > 10*1024*1024 ? 10*1024*1024 : cb;
+ char *pb = malloc(cbThis);
+ if (!pb)
+ {
+ printf("\nalloc-1: calloc failed, cbDone=%lu MB (%lu bytes)\n",
+ cbDone/1024/1024, cbDone);
+ return 1;
+ }
+ cbDone += cbThis;
+
+ /* touch the memory. */
+ while (cbThis >= 0x1000)
+ {
+ *pb = (char)cbThis;
+ pb += 0x1000;
+ cbThis -= 0x1000;
+ }
+
+ /* progress */
+ uPctNow = 100.0 * cbDone / cb;
+ if (uPctNow != uPct && !(uPctNow & 1))
+ {
+ if (!(uPctNow % 10))
+ printf("%u%%", uPctNow);
+ else
+ printf(".");
+ fflush(stdout);
+ }
+ uPct = uPctNow;
+ }
+
+ printf("\nalloc-1: done\n");
+ return 0;
+}