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📄 Makefile(1.17 KB)
📄 bsddisks.ksh(134 B)
📄 chg_usr_exec.c(1.86 KB)
📄 devname2devid.c(2.83 KB)
📄 dir_rd_update.c(2.69 KB)
📄 dircmp.ksh(49 B)
📄 dumpadm.ksh(135 B)
📄 ff.ksh(55 B)
📄 file_check.c(2.17 KB)
📄 file_common.h(1.59 KB)
📄 file_trunc.c(4.48 KB)
📄 file_write.c(5.26 KB)
📄 fmadm.ksh(55 B)
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📄 format.ksh(55 B)
📄 groupadd.ksh(114 B)
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📄 largest_file.c(2.96 KB)
📄 mkfile.c(4.67 KB)
📄 mktree.c(4.36 KB)
📄 mmapwrite.c(2.25 KB)
📄 randfree_file.c(2.23 KB)
📄 readmmap.c(2.91 KB)
📄 rename_dir.c(2.13 KB)
📄 rm_lnkcnt_zero_file.c(3.13 KB)
📄 svcs.ksh(55 B)
📄 swap.ksh(50 B)
📄 testenv.ksh(188 B)
📄 useradd.ksh(113 B)
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📄 usermod.ksh(113 B)
📄 zfs.ksh(1.23 KB)
📄 zfs_crypto.ksh(1.65 KB)
📄 zfs_version.ksh(1.47 KB)
📄 zlogin.ksh(55 B)
📄 zoneadm.ksh(56 B)
📄 zonecfg.ksh(55 B)
📄 zpool.ksh(1.29 KB)
📄 zpool_bsd.ksh(634 B)
📄 zpool_smi.ksh(2.83 KB)
📄 zpool_version.ksh(1.88 KB)

Editing: rm_lnkcnt_zero_file.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 * $FreeBSD$
 */

/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident	"@(#)rm_lnkcnt_zero_file.c	1.3	07/05/25 SMI"

/*
 * --------------------------------------------------------------------
 * The purpose of this test is to see if the bug reported (#4723351) for
 * UFS exists when using a ZFS file system.
 * --------------------------------------------------------------------
 *
 */
#define	_REENTRANT 1
#include <stdio.h>
#include <fcntl.h>
#include <pthread.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>

static const int TRUE = 1;
static char *filebase;

static int
pickidx()
{
	return (random() % 1000);
}

/* ARGSUSED */
static void *
mover(void *a)
{
	char buf[256];
	int idx, ret;

while (TRUE) {
		idx = pickidx();
		(void) sprintf(buf, "%s.%03d", filebase, idx);
		ret = rename(filebase, buf);
		if (ret < 0 && errno != ENOENT)
			(void) perror("renaming file");
	}

return (NULL);
}

/* ARGSUSED */
static void *
cleaner(void *a)
{
	char buf[256];
	int idx, ret;

while (TRUE) {
		idx = pickidx();
		(void) sprintf(buf, "%s.%03d", filebase, idx);
		ret = remove(buf);
		if (ret < 0 && errno != ENOENT)
			(void) perror("removing file");
	}

return (NULL);
}

static void *
writer(void *a)
{
	int *fd = (int *)a;

while (TRUE) {
		(void) close (*fd);
		*fd = open(filebase, O_APPEND | O_RDWR | O_CREAT, 0644);
		if (*fd < 0)
			perror("refreshing file");
		(void) write(*fd, "test\n", 5);
	}

return (NULL);
}

int
main(int argc, char **argv)
{
	int fd;
	pthread_t tid;

if (argc == 1) {
		(void) printf("Usage: %s <filebase>\n", argv[0]);
		exit(-1);
	}

filebase = argv[1];
	fd = open(filebase, O_APPEND | O_RDWR | O_CREAT, 0644);
	if (fd < 0) {
		perror("creating test file");
		exit(-1);
	}

if (pthread_setconcurrency(4)) {	/* 3 threads + main */
		fprintf(stderr, "failed to set concurrency\n");
		exit(-1);
	}
	(void) pthread_create(&tid, NULL, mover, NULL);
	(void) pthread_create(&tid, NULL, cleaner, NULL);
	(void) pthread_create(&tid, NULL, writer, (void *) &fd);

while (TRUE) {
		int ret;
		struct stat st;

ret = stat(filebase, &st);
		if (ret == 0 && (st.st_nlink > 2 || st.st_nlink < 1)) {
			(void) printf("st.st_nlink = %d, exiting\n", \
			    (int)st.st_nlink);
			exit(0);
		}
		(void) sleep(1);
	}

return (0);
}

003 File Manager

Editing: rm_lnkcnt_zero_file.c

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