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/*
// Copyright (c) 2021 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Abstract: oom test application
//
*/
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
void Usage(char* progname)
{
printf("Usage:\n");
printf("%s -s <size>\n", progname);
printf("Options:\n");
printf("\t%-12s%s\n", "-h", "Display this help information");
printf("\t%-12s%s\n", "-s <size>",
"Allocation unit size for getting heap in infinite loop");
printf("\n");
}
int main(int argc, char** argv)
{
int c, i, unitSize = 0, allocSize = 0;
while (-1 != (c = getopt(argc, argv, "h:s:")))
{
switch (c)
{
case 'h':
Usage(argv[0]);
return 0;
case 's':
if (optarg != NULL)
{
unitSize = (int)strtoul(optarg, NULL, 0);
}
break;
default:
Usage(argv[0]);
return 1;
}
}
if (!unitSize)
{
printf("Error: Invalid allocation unit size\n");
Usage(argv[0]);
return 1;
}
while (1)
{
char* buf = (char*)malloc(unitSize);
if (!buf)
{
printf("Can't allocate memory!\n");
exit(0);
}
printf("Filling allocated memory...\n");
for (i = 0; i < unitSize; i++)
buf[i] = 1;
printf("Allocated %d MB\n", (++allocSize * 10));
/* continue looping without freeing to make OOM condition */
}
return 0;
}
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