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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2006 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/xattr.h>
#define MAX_EA_NAME 30
#define MAX_VALUELEN (64*1024)
/*
* multi_open_unlink path_prefix num_files sleep_time
* e.g.
* $ multi_open_unlink file 100 60
* Creates 100 files: file.1, file.2, ..., file.100
* unlinks them all but doesn't close them all until after 60 seconds.
*/
void
usage(char *prog)
{
fprintf(stderr, "Usage: %s [-e num-eas] [-f path_prefix] [-n num_files] [-s sleep_time] [-v ea-valuesize] \n", prog);
exit(1);
}
int
main(int argc, char *argv[])
{
char *given_path = "file";
char path[PATH_MAX];
char *prog = argv[0];
int sleep_time = 60;
int num_files = 100;
int num_eas = 0;
int value_size = MAX_VALUELEN;
int fd = -1;
int i,j,c;
while ((c = getopt(argc, argv, "e:f:n:s:v:")) != EOF) {
switch (c) {
case 'e': /* create eas */
num_eas = atoi(optarg);
break;
case 'f': /* file prefix */
given_path = optarg;
break;
case 'n': /* number of files */
num_files = atoi(optarg);
break;
case 's': /* sleep time */
sleep_time = atoi(optarg);
break;
case 'v': /* value size on eas */
value_size = atoi(optarg);
break;
case '?':
usage(prog);
}
}
/* create and unlink a bunch of files */
for (i = 0; i < num_files; i++) {
sprintf(path, "%s.%d", given_path, i+1);
/* if file already exists then error out */
if (access(path, F_OK) == 0) {
fprintf(stderr, "%s: file \"%s\" already exists\n", prog, path);
return 1;
}
fd = open(path, O_RDWR|O_CREAT|O_EXCL, 0666);
if (fd == -1) {
fprintf(stderr, "%s: failed to create \"%s\": %s\n", prog, path, strerror(errno));
return 1;
}
/* set the EAs */
for (j = 0; j < num_eas; j++) {
int sts;
char *attrvalue;
char attrname[MAX_EA_NAME];
snprintf(attrname, MAX_EA_NAME, "user.name.%d", j);
attrvalue = calloc(value_size, 1);
if (attrvalue == NULL) {
fprintf(stderr, "%s: failed to create EA value of size %d on path \"%s\": %s\n",
prog, value_size, path, strerror(errno));
return 1;
}
sts = setxattr(path, attrname, attrvalue, value_size, 0);
if (sts == -1) {
fprintf(stderr, "%s: failed to create EA \"%s\" of size %d on path \"%s\": %s\n",
prog, attrname, value_size, path, strerror(errno));
return 1;
}
}
if (unlink(path) == -1) {
fprintf(stderr, "%s: failed to unlink \"%s\": %s\n",
prog, path, strerror(errno));
return 1;
}
}
sleep(sleep_time);
return 0;
}
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