Mercurial > illumos > illumos-gate
view usr/src/test/zfs-tests/cmd/rm_lnkcnt_zero_file/rm_lnkcnt_zero_file.c @ 13899:0bcf78798346
3311 Want a test framework for arbitrary OS unit tests
3312 Add a testrunner package for OS unit tests
3313 Add a testrunner package to convert ZFS tests from STF
Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com>
Reviewed by: Will Guyette <will.guyette@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Henrik Mattson <henrik.mattson@delphix.com>
Reviewed by: Sonu Pillai <sonu.pillai@delphix.com>
Reviewed by: Christopher Siden <chris.siden@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Richard Lowe <richlowe@richlowe.net>
author | John Wren Kennedy <john.kennedy@delphix.com> |
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date | Wed, 05 Dec 2012 22:04:50 -0500 |
parents | |
children |
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/* * 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 */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2012 by Delphix. All rights reserved. */ /* * -------------------------------------------------------------------- * 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 <thread.h> #include <errno.h> #include <sys/types.h> #include <sys/stat.h> #include <stdlib.h> #include <unistd.h> #include <strings.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, len, ret; len = strlen(filebase) + 5; while (TRUE) { idx = pickidx(); (void) snprintf(buf, len, "%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, len, ret; len = strlen(filebase) + 5; while (TRUE) { idx = pickidx(); (void) snprintf(buf, len, "%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); } (void) thr_setconcurrency(4); /* 3 threads + main */ (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); }