1150 lines
26 KiB
C
1150 lines
26 KiB
C
/*
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* Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* The contents of this file constitute Original Code as defined in and
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* are subject to the Apple Public Source License Version 2.0 (the
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* "License"). You may not use this file except in compliance with the
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* License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* This Original Code and all software distributed under the License are
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* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*
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* File: fsx.c
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* Author: Avadis Tevanian, Jr.
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*
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* File system exerciser.
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*
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* Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
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*
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* Various features from Joe Sokol, Pat Dirks, and Clark Warner.
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*
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* Small changes to work under Linux -- davej@suse.de
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*
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* Sundry porting patches from Guy Harris 12/2001
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*
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* Checks for mmap last-page zero fill.
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*
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* Updated license to APSL 2.0, 2004/7/27 - Jordan Hubbard
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*
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* $FreeBSD$
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef _UWIN
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# include <sys/param.h>
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# include <limits.h>
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# include <time.h>
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# include <strings.h>
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#endif
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#include <fcntl.h>
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#include <sys/mman.h>
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#ifndef MAP_FILE
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# define MAP_FILE 0
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#endif
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <errno.h>
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#define NUMPRINTCOLUMNS 32 /* # columns of data to print on each line */
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/*
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* A log entry is an operation and a bunch of arguments.
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*/
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struct log_entry {
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int operation;
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int args[3];
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};
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#define LOGSIZE 1000
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struct log_entry oplog[LOGSIZE]; /* the log */
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int logptr = 0; /* current position in log */
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int logcount = 0; /* total ops */
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/*
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* Define operations
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*/
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#define OP_READ 1
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#define OP_WRITE 2
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#define OP_TRUNCATE 3
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#define OP_CLOSEOPEN 4
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#define OP_MAPREAD 5
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#define OP_MAPWRITE 6
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#define OP_SKIPPED 7
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int page_size;
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int page_mask;
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char *original_buf; /* a pointer to the original data */
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char *good_buf; /* a pointer to the correct data */
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char *temp_buf; /* a pointer to the current data */
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char *fname; /* name of our test file */
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int fd; /* fd for our test file */
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off_t file_size = 0;
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off_t biggest = 0;
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char state[256];
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unsigned long testcalls = 0; /* calls to function "test" */
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unsigned long simulatedopcount = 0; /* -b flag */
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int closeprob = 0; /* -c flag */
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int debug = 0; /* -d flag */
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unsigned long debugstart = 0; /* -D flag */
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unsigned long maxfilelen = 256 * 1024; /* -l flag */
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int sizechecks = 1; /* -n flag disables them */
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int maxoplen = 64 * 1024; /* -o flag */
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int quiet = 0; /* -q flag */
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unsigned long progressinterval = 0; /* -p flag */
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int readbdy = 1; /* -r flag */
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int style = 0; /* -s flag */
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int truncbdy = 1; /* -t flag */
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int writebdy = 1; /* -w flag */
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long monitorstart = -1; /* -m flag */
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long monitorend = -1; /* -m flag */
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int lite = 0; /* -L flag */
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long numops = -1; /* -N flag */
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int randomoplen = 1; /* -O flag disables it */
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int seed = 1; /* -S flag */
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int mapped_writes = 1; /* -W flag disables */
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int mapped_reads = 1; /* -R flag disables it */
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int fsxgoodfd = 0;
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FILE * fsxlogf = NULL;
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int badoff = -1;
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int closeopen = 0;
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void
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vwarnc(code, fmt, ap)
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int code;
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const char *fmt;
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va_list ap;
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{
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fprintf(stderr, "fsx: ");
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if (fmt != NULL) {
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, ": ");
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}
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fprintf(stderr, "%s\n", strerror(code));
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}
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void
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warn(const char * fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vwarnc(errno, fmt, ap);
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va_end(ap);
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}
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void
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prt(char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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vfprintf(stdout, fmt, args);
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if (fsxlogf)
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vfprintf(fsxlogf, fmt, args);
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va_end(args);
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}
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void
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prterr(char *prefix)
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{
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prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
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}
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void
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log4(int operation, int arg0, int arg1, int arg2)
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{
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struct log_entry *le;
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le = &oplog[logptr];
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le->operation = operation;
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if (closeopen)
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le->operation = ~ le->operation;
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le->args[0] = arg0;
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le->args[1] = arg1;
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le->args[2] = arg2;
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logptr++;
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logcount++;
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if (logptr >= LOGSIZE)
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logptr = 0;
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}
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void
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logdump(void)
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{
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int i, count, down;
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struct log_entry *lp;
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prt("LOG DUMP (%d total operations):\n", logcount);
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if (logcount < LOGSIZE) {
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i = 0;
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count = logcount;
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} else {
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i = logptr;
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count = LOGSIZE;
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}
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for ( ; count > 0; count--) {
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int opnum;
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opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
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prt("%d(%d mod 256): ", opnum, opnum%256);
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lp = &oplog[i];
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if ((closeopen = lp->operation < 0))
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lp->operation = ~ lp->operation;
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switch (lp->operation) {
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case OP_MAPREAD:
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prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
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lp->args[0], lp->args[0] + lp->args[1] - 1,
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lp->args[1]);
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if (badoff >= lp->args[0] && badoff <
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lp->args[0] + lp->args[1])
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prt("\t***RRRR***");
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break;
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case OP_MAPWRITE:
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prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
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lp->args[0], lp->args[0] + lp->args[1] - 1,
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lp->args[1]);
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if (badoff >= lp->args[0] && badoff <
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lp->args[0] + lp->args[1])
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prt("\t******WWWW");
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break;
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case OP_READ:
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prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
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lp->args[0], lp->args[0] + lp->args[1] - 1,
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lp->args[1]);
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if (badoff >= lp->args[0] &&
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badoff < lp->args[0] + lp->args[1])
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prt("\t***RRRR***");
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break;
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case OP_WRITE:
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prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
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lp->args[0], lp->args[0] + lp->args[1] - 1,
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lp->args[1]);
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if (lp->args[0] > lp->args[2])
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prt(" HOLE");
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else if (lp->args[0] + lp->args[1] > lp->args[2])
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prt(" EXTEND");
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if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
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badoff < lp->args[0] + lp->args[1])
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prt("\t***WWWW");
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break;
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case OP_TRUNCATE:
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down = lp->args[0] < lp->args[1];
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prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
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down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
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if (badoff >= lp->args[!down] &&
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badoff < lp->args[!!down])
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prt("\t******WWWW");
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break;
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case OP_SKIPPED:
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prt("SKIPPED (no operation)");
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break;
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default:
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prt("BOGUS LOG ENTRY (operation code = %d)!",
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lp->operation);
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}
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if (closeopen)
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prt("\n\t\tCLOSE/OPEN");
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prt("\n");
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i++;
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if (i == LOGSIZE)
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i = 0;
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}
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}
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void
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save_buffer(char *buffer, off_t bufferlength, int fd)
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{
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off_t ret;
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ssize_t byteswritten;
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if (fd <= 0 || bufferlength == 0)
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return;
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if (bufferlength > SSIZE_MAX) {
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prt("fsx flaw: overflow in save_buffer\n");
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exit(67);
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}
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if (lite) {
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off_t size_by_seek = lseek(fd, (off_t)0, SEEK_END);
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if (size_by_seek == (off_t)-1)
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prterr("save_buffer: lseek eof");
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else if (bufferlength > size_by_seek) {
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warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
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(unsigned long long)bufferlength);
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bufferlength = size_by_seek;
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}
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}
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ret = lseek(fd, (off_t)0, SEEK_SET);
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if (ret == (off_t)-1)
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prterr("save_buffer: lseek 0");
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byteswritten = write(fd, buffer, (size_t)bufferlength);
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if (byteswritten != bufferlength) {
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if (byteswritten == -1)
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prterr("save_buffer write");
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else
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warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
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(unsigned)byteswritten,
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(unsigned long long)bufferlength);
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}
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}
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void
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report_failure(int status)
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{
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logdump();
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if (fsxgoodfd) {
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if (good_buf) {
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save_buffer(good_buf, file_size, fsxgoodfd);
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prt("Correct content saved for comparison\n");
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prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
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fname, fname);
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}
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close(fsxgoodfd);
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}
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exit(status);
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}
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#define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
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*(((unsigned char *)(cp)) + 1)))
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void
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check_buffers(unsigned offset, unsigned size)
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{
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unsigned char c, t;
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unsigned i = 0;
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unsigned n = 0;
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unsigned op = 0;
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unsigned bad = 0;
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if (memcmp(good_buf + offset, temp_buf, size) != 0) {
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prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
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offset, size);
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prt("OFFSET\tGOOD\tBAD\tRANGE\n");
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while (size > 0) {
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c = good_buf[offset];
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t = temp_buf[i];
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if (c != t) {
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if (n == 0) {
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bad = short_at(&temp_buf[i]);
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prt("0x%5x\t0x%04x\t0x%04x", offset,
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short_at(&good_buf[offset]), bad);
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op = temp_buf[offset & 1 ? i+1 : i];
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}
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n++;
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badoff = offset;
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}
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offset++;
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i++;
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size--;
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}
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if (n) {
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prt("\t0x%5x\n", n);
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if (bad)
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prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
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else
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prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
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} else
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prt("????????????????\n");
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report_failure(110);
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}
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}
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void
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check_size(void)
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{
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struct stat statbuf;
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off_t size_by_seek;
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if (fstat(fd, &statbuf)) {
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prterr("check_size: fstat");
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statbuf.st_size = -1;
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}
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size_by_seek = lseek(fd, (off_t)0, SEEK_END);
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if (file_size != statbuf.st_size || file_size != size_by_seek) {
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prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
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(unsigned long long)file_size,
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(unsigned long long)statbuf.st_size,
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(unsigned long long)size_by_seek);
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report_failure(120);
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}
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}
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void
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check_trunc_hack(void)
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{
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struct stat statbuf;
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ftruncate(fd, (off_t)0);
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ftruncate(fd, (off_t)100000);
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fstat(fd, &statbuf);
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if (statbuf.st_size != (off_t)100000) {
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prt("no extend on truncate! not posix!\n");
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exit(130);
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}
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ftruncate(fd, (off_t)0);
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}
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void
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doread(unsigned offset, unsigned size)
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{
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off_t ret;
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unsigned iret;
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offset -= offset % readbdy;
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if (size == 0) {
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if (!quiet && testcalls > simulatedopcount)
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prt("skipping zero size read\n");
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log4(OP_SKIPPED, OP_READ, offset, size);
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return;
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}
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if (size + offset > file_size) {
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if (!quiet && testcalls > simulatedopcount)
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prt("skipping seek/read past end of file\n");
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log4(OP_SKIPPED, OP_READ, offset, size);
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return;
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}
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log4(OP_READ, offset, size, 0);
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if (testcalls <= simulatedopcount)
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return;
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if (!quiet && ((progressinterval &&
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testcalls % progressinterval == 0) ||
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(debug &&
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(monitorstart == -1 ||
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(offset + size > monitorstart &&
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(monitorend == -1 || offset <= monitorend))))))
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prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
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offset, offset + size - 1, size);
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ret = lseek(fd, (off_t)offset, SEEK_SET);
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if (ret == (off_t)-1) {
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prterr("doread: lseek");
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report_failure(140);
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}
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iret = read(fd, temp_buf, size);
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if (iret != size) {
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if (iret == -1)
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prterr("doread: read");
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else
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prt("short read: 0x%x bytes instead of 0x%x\n",
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iret, size);
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report_failure(141);
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}
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check_buffers(offset, size);
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}
|
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|
|
|
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void
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check_eofpage(char *s, unsigned offset, char *p, int size)
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{
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unsigned last_page, should_be_zero;
|
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if (offset + size <= (file_size & ~page_mask))
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return;
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/*
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* we landed in the last page of the file
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* test to make sure the VM system provided 0's
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|
* beyond the true end of the file mapping
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* (as required by mmap def in 1996 posix 1003.1)
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*/
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last_page = ((int)p + (offset & page_mask) + size) & ~page_mask;
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for (should_be_zero = last_page + (file_size & page_mask);
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should_be_zero < last_page + page_size;
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should_be_zero++)
|
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if (*(char *)should_be_zero) {
|
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prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%x is 0x%04x\n",
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s, file_size - 1, should_be_zero & page_mask,
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short_at(should_be_zero));
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report_failure(205);
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}
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|
}
|
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|
|
|
|
void
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domapread(unsigned offset, unsigned size)
|
|
{
|
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unsigned pg_offset;
|
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unsigned map_size;
|
|
char *p;
|
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|
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offset -= offset % readbdy;
|
|
if (size == 0) {
|
|
if (!quiet && testcalls > simulatedopcount)
|
|
prt("skipping zero size read\n");
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log4(OP_SKIPPED, OP_MAPREAD, offset, size);
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return;
|
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}
|
|
if (size + offset > file_size) {
|
|
if (!quiet && testcalls > simulatedopcount)
|
|
prt("skipping seek/read past end of file\n");
|
|
log4(OP_SKIPPED, OP_MAPREAD, offset, size);
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return;
|
|
}
|
|
|
|
log4(OP_MAPREAD, offset, size, 0);
|
|
|
|
if (testcalls <= simulatedopcount)
|
|
return;
|
|
|
|
if (!quiet && ((progressinterval &&
|
|
testcalls % progressinterval == 0) ||
|
|
(debug &&
|
|
(monitorstart == -1 ||
|
|
(offset + size > monitorstart &&
|
|
(monitorend == -1 || offset <= monitorend))))))
|
|
prt("%lu mapread\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
|
|
offset, offset + size - 1, size);
|
|
|
|
pg_offset = offset & page_mask;
|
|
map_size = pg_offset + size;
|
|
|
|
if ((p = (char *)mmap(0, map_size, PROT_READ, MAP_FILE | MAP_SHARED, fd,
|
|
(off_t)(offset - pg_offset))) == (char *)-1) {
|
|
prterr("domapread: mmap");
|
|
report_failure(190);
|
|
}
|
|
memcpy(temp_buf, p + pg_offset, size);
|
|
|
|
check_eofpage("Read", offset, p, size);
|
|
|
|
if (munmap(p, map_size) != 0) {
|
|
prterr("domapread: munmap");
|
|
report_failure(191);
|
|
}
|
|
|
|
check_buffers(offset, size);
|
|
}
|
|
|
|
|
|
void
|
|
gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
|
|
{
|
|
while (size--) {
|
|
good_buf[offset] = testcalls % 256;
|
|
if (offset % 2)
|
|
good_buf[offset] += original_buf[offset];
|
|
offset++;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
dowrite(unsigned offset, unsigned size)
|
|
{
|
|
off_t ret;
|
|
unsigned iret;
|
|
|
|
offset -= offset % writebdy;
|
|
if (size == 0) {
|
|
if (!quiet && testcalls > simulatedopcount)
|
|
prt("skipping zero size write\n");
|
|
log4(OP_SKIPPED, OP_WRITE, offset, size);
|
|
return;
|
|
}
|
|
|
|
log4(OP_WRITE, offset, size, file_size);
|
|
|
|
gendata(original_buf, good_buf, offset, size);
|
|
if (file_size < offset + size) {
|
|
if (file_size < offset)
|
|
memset(good_buf + file_size, '\0', offset - file_size);
|
|
file_size = offset + size;
|
|
if (lite) {
|
|
warn("Lite file size bug in fsx!");
|
|
report_failure(149);
|
|
}
|
|
}
|
|
|
|
if (testcalls <= simulatedopcount)
|
|
return;
|
|
|
|
if (!quiet && ((progressinterval &&
|
|
testcalls % progressinterval == 0) ||
|
|
(debug &&
|
|
(monitorstart == -1 ||
|
|
(offset + size > monitorstart &&
|
|
(monitorend == -1 || offset <= monitorend))))))
|
|
prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
|
|
offset, offset + size - 1, size);
|
|
ret = lseek(fd, (off_t)offset, SEEK_SET);
|
|
if (ret == (off_t)-1) {
|
|
prterr("dowrite: lseek");
|
|
report_failure(150);
|
|
}
|
|
iret = write(fd, good_buf + offset, size);
|
|
if (iret != size) {
|
|
if (iret == -1)
|
|
prterr("dowrite: write");
|
|
else
|
|
prt("short write: 0x%x bytes instead of 0x%x\n",
|
|
iret, size);
|
|
report_failure(151);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
domapwrite(unsigned offset, unsigned size)
|
|
{
|
|
unsigned pg_offset;
|
|
unsigned map_size;
|
|
off_t cur_filesize;
|
|
char *p;
|
|
|
|
offset -= offset % writebdy;
|
|
if (size == 0) {
|
|
if (!quiet && testcalls > simulatedopcount)
|
|
prt("skipping zero size write\n");
|
|
log4(OP_SKIPPED, OP_MAPWRITE, offset, size);
|
|
return;
|
|
}
|
|
cur_filesize = file_size;
|
|
|
|
log4(OP_MAPWRITE, offset, size, 0);
|
|
|
|
gendata(original_buf, good_buf, offset, size);
|
|
if (file_size < offset + size) {
|
|
if (file_size < offset)
|
|
memset(good_buf + file_size, '\0', offset - file_size);
|
|
file_size = offset + size;
|
|
if (lite) {
|
|
warn("Lite file size bug in fsx!");
|
|
report_failure(200);
|
|
}
|
|
}
|
|
|
|
if (testcalls <= simulatedopcount)
|
|
return;
|
|
|
|
if (!quiet && ((progressinterval &&
|
|
testcalls % progressinterval == 0) ||
|
|
(debug &&
|
|
(monitorstart == -1 ||
|
|
(offset + size > monitorstart &&
|
|
(monitorend == -1 || offset <= monitorend))))))
|
|
prt("%lu mapwrite\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
|
|
offset, offset + size - 1, size);
|
|
|
|
if (file_size > cur_filesize) {
|
|
if (ftruncate(fd, file_size) == -1) {
|
|
prterr("domapwrite: ftruncate");
|
|
exit(201);
|
|
}
|
|
}
|
|
pg_offset = offset & page_mask;
|
|
map_size = pg_offset + size;
|
|
|
|
if ((p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
|
|
MAP_FILE | MAP_SHARED, fd,
|
|
(off_t)(offset - pg_offset))) == (char *)-1) {
|
|
prterr("domapwrite: mmap");
|
|
report_failure(202);
|
|
}
|
|
memcpy(p + pg_offset, good_buf + offset, size);
|
|
if (msync(p, map_size, 0) != 0) {
|
|
prterr("domapwrite: msync");
|
|
report_failure(203);
|
|
}
|
|
|
|
check_eofpage("Write", offset, p, size);
|
|
|
|
if (munmap(p, map_size) != 0) {
|
|
prterr("domapwrite: munmap");
|
|
report_failure(204);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
dotruncate(unsigned size)
|
|
{
|
|
int oldsize = file_size;
|
|
|
|
size -= size % truncbdy;
|
|
if (size > biggest) {
|
|
biggest = size;
|
|
if (!quiet && testcalls > simulatedopcount)
|
|
prt("truncating to largest ever: 0x%x\n", size);
|
|
}
|
|
|
|
log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
|
|
|
|
if (size > file_size)
|
|
memset(good_buf + file_size, '\0', size - file_size);
|
|
file_size = size;
|
|
|
|
if (testcalls <= simulatedopcount)
|
|
return;
|
|
|
|
if ((progressinterval && testcalls % progressinterval == 0) ||
|
|
(debug && (monitorstart == -1 || monitorend == -1 ||
|
|
size <= monitorend)))
|
|
prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
|
|
if (ftruncate(fd, (off_t)size) == -1) {
|
|
prt("ftruncate1: %x\n", size);
|
|
prterr("dotruncate: ftruncate");
|
|
report_failure(160);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
writefileimage()
|
|
{
|
|
ssize_t iret;
|
|
|
|
if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
|
|
prterr("writefileimage: lseek");
|
|
report_failure(171);
|
|
}
|
|
iret = write(fd, good_buf, file_size);
|
|
if ((off_t)iret != file_size) {
|
|
if (iret == -1)
|
|
prterr("writefileimage: write");
|
|
else
|
|
prt("short write: 0x%x bytes instead of 0x%llx\n",
|
|
iret, (unsigned long long)file_size);
|
|
report_failure(172);
|
|
}
|
|
if (lite ? 0 : ftruncate(fd, file_size) == -1) {
|
|
prt("ftruncate2: %llx\n", (unsigned long long)file_size);
|
|
prterr("writefileimage: ftruncate");
|
|
report_failure(173);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
docloseopen(void)
|
|
{
|
|
if (testcalls <= simulatedopcount)
|
|
return;
|
|
|
|
if (debug)
|
|
prt("%lu close/open\n", testcalls);
|
|
if (close(fd)) {
|
|
prterr("docloseopen: close");
|
|
report_failure(180);
|
|
}
|
|
fd = open(fname, O_RDWR, 0);
|
|
if (fd < 0) {
|
|
prterr("docloseopen: open");
|
|
report_failure(181);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
test(void)
|
|
{
|
|
unsigned long offset;
|
|
unsigned long size = maxoplen;
|
|
unsigned long rv = random();
|
|
unsigned long op = rv % (3 + !lite + mapped_writes);
|
|
|
|
/* turn off the map read if necessary */
|
|
|
|
if (op == 2 && !mapped_reads)
|
|
op = 0;
|
|
|
|
if (simulatedopcount > 0 && testcalls == simulatedopcount)
|
|
writefileimage();
|
|
|
|
testcalls++;
|
|
|
|
if (closeprob)
|
|
closeopen = (rv >> 3) < (1 << 28) / closeprob;
|
|
|
|
if (debugstart > 0 && testcalls >= debugstart)
|
|
debug = 1;
|
|
|
|
if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
|
|
prt("%lu...\n", testcalls);
|
|
|
|
/*
|
|
* READ: op = 0
|
|
* WRITE: op = 1
|
|
* MAPREAD: op = 2
|
|
* TRUNCATE: op = 3
|
|
* MAPWRITE: op = 3 or 4
|
|
*/
|
|
if (lite ? 0 : op == 3 && style == 0) /* vanilla truncate? */
|
|
dotruncate(random() % maxfilelen);
|
|
else {
|
|
if (randomoplen)
|
|
size = random() % (maxoplen+1);
|
|
if (lite ? 0 : op == 3)
|
|
dotruncate(size);
|
|
else {
|
|
offset = random();
|
|
if (op == 1 || op == (lite ? 3 : 4)) {
|
|
offset %= maxfilelen;
|
|
if (offset + size > maxfilelen)
|
|
size = maxfilelen - offset;
|
|
if (op != 1)
|
|
domapwrite(offset, size);
|
|
else
|
|
dowrite(offset, size);
|
|
} else {
|
|
if (file_size)
|
|
offset %= file_size;
|
|
else
|
|
offset = 0;
|
|
if (offset + size > file_size)
|
|
size = file_size - offset;
|
|
if (op != 0)
|
|
domapread(offset, size);
|
|
else
|
|
doread(offset, size);
|
|
}
|
|
}
|
|
}
|
|
if (sizechecks && testcalls > simulatedopcount)
|
|
check_size();
|
|
if (closeopen)
|
|
docloseopen();
|
|
}
|
|
|
|
|
|
void
|
|
cleanup(sig)
|
|
int sig;
|
|
{
|
|
if (sig)
|
|
prt("signal %d\n", sig);
|
|
prt("testcalls = %lu\n", testcalls);
|
|
exit(sig);
|
|
}
|
|
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
fprintf(stdout, "usage: %s",
|
|
"fsx [-dnqLOW] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
|
|
-b opnum: beginning operation number (default 1)\n\
|
|
-c P: 1 in P chance of file close+open at each op (default infinity)\n\
|
|
-d: debug output for all operations\n\
|
|
-l flen: the upper bound on file size (default 262144)\n\
|
|
-m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
|
|
-n: no verifications of file size\n\
|
|
-o oplen: the upper bound on operation size (default 65536)\n\
|
|
-p progressinterval: debug output at specified operation interval\n\
|
|
-q: quieter operation\n\
|
|
-r readbdy: 4096 would make reads page aligned (default 1)\n\
|
|
-s style: 1 gives smaller truncates (default 0)\n\
|
|
-t truncbdy: 4096 would make truncates page aligned (default 1)\n\
|
|
-w writebdy: 4096 would make writes page aligned (default 1)\n\
|
|
-D startingop: debug output starting at specified operation\n\
|
|
-L: fsxLite - no file creations & no file size changes\n\
|
|
-N numops: total # operations to do (default infinity)\n\
|
|
-O: use oplen (see -o flag) for every op (default random)\n\
|
|
-P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
|
|
-S seed: for random # generator (default 1) 0 gets timestamp\n\
|
|
-W: mapped write operations DISabled\n\
|
|
-R: mapped read operations DISabled)\n\
|
|
fname: this filename is REQUIRED (no default)\n");
|
|
exit(90);
|
|
}
|
|
|
|
|
|
int
|
|
getnum(char *s, char **e)
|
|
{
|
|
int ret = -1;
|
|
|
|
*e = (char *) 0;
|
|
ret = strtol(s, e, 0);
|
|
if (*e)
|
|
switch (**e) {
|
|
case 'b':
|
|
case 'B':
|
|
ret *= 512;
|
|
*e = *e + 1;
|
|
break;
|
|
case 'k':
|
|
case 'K':
|
|
ret *= 1024;
|
|
*e = *e + 1;
|
|
break;
|
|
case 'm':
|
|
case 'M':
|
|
ret *= 1024*1024;
|
|
*e = *e + 1;
|
|
break;
|
|
case 'w':
|
|
case 'W':
|
|
ret *= 4;
|
|
*e = *e + 1;
|
|
break;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int i, ch;
|
|
char *endp;
|
|
char goodfile[1024];
|
|
char logfile[1024];
|
|
|
|
goodfile[0] = 0;
|
|
logfile[0] = 0;
|
|
|
|
page_size = getpagesize();
|
|
page_mask = page_size - 1;
|
|
|
|
setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
|
|
|
|
while ((ch = getopt(argc, argv, "b:c:dl:m:no:p:qr:s:t:w:D:LN:OP:RS:W"))
|
|
!= EOF)
|
|
switch (ch) {
|
|
case 'b':
|
|
simulatedopcount = getnum(optarg, &endp);
|
|
if (!quiet)
|
|
fprintf(stdout, "Will begin at operation %ld\n",
|
|
simulatedopcount);
|
|
if (simulatedopcount == 0)
|
|
usage();
|
|
simulatedopcount -= 1;
|
|
break;
|
|
case 'c':
|
|
closeprob = getnum(optarg, &endp);
|
|
if (!quiet)
|
|
fprintf(stdout,
|
|
"Chance of close/open is 1 in %d\n",
|
|
closeprob);
|
|
if (closeprob <= 0)
|
|
usage();
|
|
break;
|
|
case 'd':
|
|
debug = 1;
|
|
break;
|
|
case 'l':
|
|
maxfilelen = getnum(optarg, &endp);
|
|
if (maxfilelen <= 0)
|
|
usage();
|
|
break;
|
|
case 'm':
|
|
monitorstart = getnum(optarg, &endp);
|
|
if (monitorstart < 0)
|
|
usage();
|
|
if (!endp || *endp++ != ':')
|
|
usage();
|
|
monitorend = getnum(endp, &endp);
|
|
if (monitorend < 0)
|
|
usage();
|
|
if (monitorend == 0)
|
|
monitorend = -1; /* aka infinity */
|
|
debug = 1;
|
|
case 'n':
|
|
sizechecks = 0;
|
|
break;
|
|
case 'o':
|
|
maxoplen = getnum(optarg, &endp);
|
|
if (maxoplen <= 0)
|
|
usage();
|
|
break;
|
|
case 'p':
|
|
progressinterval = getnum(optarg, &endp);
|
|
if (progressinterval < 0)
|
|
usage();
|
|
break;
|
|
case 'q':
|
|
quiet = 1;
|
|
break;
|
|
case 'r':
|
|
readbdy = getnum(optarg, &endp);
|
|
if (readbdy <= 0)
|
|
usage();
|
|
break;
|
|
case 's':
|
|
style = getnum(optarg, &endp);
|
|
if (style < 0 || style > 1)
|
|
usage();
|
|
break;
|
|
case 't':
|
|
truncbdy = getnum(optarg, &endp);
|
|
if (truncbdy <= 0)
|
|
usage();
|
|
break;
|
|
case 'w':
|
|
writebdy = getnum(optarg, &endp);
|
|
if (writebdy <= 0)
|
|
usage();
|
|
break;
|
|
case 'D':
|
|
debugstart = getnum(optarg, &endp);
|
|
if (debugstart < 1)
|
|
usage();
|
|
break;
|
|
case 'L':
|
|
lite = 1;
|
|
break;
|
|
case 'N':
|
|
numops = getnum(optarg, &endp);
|
|
if (numops < 0)
|
|
usage();
|
|
break;
|
|
case 'O':
|
|
randomoplen = 0;
|
|
break;
|
|
case 'P':
|
|
strncpy(goodfile, optarg, sizeof(goodfile));
|
|
strcat(goodfile, "/");
|
|
strncpy(logfile, optarg, sizeof(logfile));
|
|
strcat(logfile, "/");
|
|
break;
|
|
case 'R':
|
|
mapped_reads = 0;
|
|
break;
|
|
case 'S':
|
|
seed = getnum(optarg, &endp);
|
|
if (seed == 0)
|
|
seed = time(0) % 10000;
|
|
if (!quiet)
|
|
fprintf(stdout, "Seed set to %d\n", seed);
|
|
if (seed < 0)
|
|
usage();
|
|
break;
|
|
case 'W':
|
|
mapped_writes = 0;
|
|
if (!quiet)
|
|
fprintf(stdout, "mapped writes DISABLED\n");
|
|
break;
|
|
|
|
default:
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1)
|
|
usage();
|
|
fname = argv[0];
|
|
|
|
signal(SIGHUP, cleanup);
|
|
signal(SIGINT, cleanup);
|
|
signal(SIGPIPE, cleanup);
|
|
signal(SIGALRM, cleanup);
|
|
signal(SIGTERM, cleanup);
|
|
signal(SIGXCPU, cleanup);
|
|
signal(SIGXFSZ, cleanup);
|
|
signal(SIGVTALRM, cleanup);
|
|
signal(SIGUSR1, cleanup);
|
|
signal(SIGUSR2, cleanup);
|
|
|
|
initstate(seed, state, 256);
|
|
setstate(state);
|
|
fd = open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
|
|
if (fd < 0) {
|
|
prterr(fname);
|
|
exit(91);
|
|
}
|
|
strncat(goodfile, fname, 256);
|
|
strcat (goodfile, ".fsxgood");
|
|
fsxgoodfd = open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
|
|
if (fsxgoodfd < 0) {
|
|
prterr(goodfile);
|
|
exit(92);
|
|
}
|
|
strncat(logfile, fname, 256);
|
|
strcat (logfile, ".fsxlog");
|
|
fsxlogf = fopen(logfile, "w");
|
|
if (fsxlogf == NULL) {
|
|
prterr(logfile);
|
|
exit(93);
|
|
}
|
|
if (lite) {
|
|
off_t ret;
|
|
file_size = maxfilelen = lseek(fd, (off_t)0, SEEK_END);
|
|
if (file_size == (off_t)-1) {
|
|
prterr(fname);
|
|
warn("main: lseek eof");
|
|
exit(94);
|
|
}
|
|
ret = lseek(fd, (off_t)0, SEEK_SET);
|
|
if (ret == (off_t)-1) {
|
|
prterr(fname);
|
|
warn("main: lseek 0");
|
|
exit(95);
|
|
}
|
|
}
|
|
original_buf = (char *) malloc(maxfilelen);
|
|
for (i = 0; i < maxfilelen; i++)
|
|
original_buf[i] = random() % 256;
|
|
good_buf = (char *) malloc(maxfilelen);
|
|
memset(good_buf, '\0', maxfilelen);
|
|
temp_buf = (char *) malloc(maxoplen);
|
|
memset(temp_buf, '\0', maxoplen);
|
|
if (lite) { /* zero entire existing file */
|
|
ssize_t written;
|
|
|
|
written = write(fd, good_buf, (size_t)maxfilelen);
|
|
if (written != maxfilelen) {
|
|
if (written == -1) {
|
|
prterr(fname);
|
|
warn("main: error on write");
|
|
} else
|
|
warn("main: short write, 0x%x bytes instead of 0x%x\n",
|
|
(unsigned)written, maxfilelen);
|
|
exit(98);
|
|
}
|
|
} else
|
|
check_trunc_hack();
|
|
|
|
while (numops == -1 || numops--)
|
|
test();
|
|
|
|
if (close(fd)) {
|
|
prterr("close");
|
|
report_failure(99);
|
|
}
|
|
prt("All operations completed A-OK!\n");
|
|
|
|
exit(0);
|
|
return 0;
|
|
}
|
|
|