Remove the duplicate fsx from tools/regression.
authorSascha Wildner <saw@online.de>
Sat, 11 Feb 2012 19:29:36 +0000 (20:29 +0100)
committerSascha Wildner <saw@online.de>
Sat, 11 Feb 2012 19:29:36 +0000 (20:29 +0100)
tools/regression/fsx/Makefile [deleted file]
tools/regression/fsx/fsx.c [deleted file]

diff --git a/tools/regression/fsx/Makefile b/tools/regression/fsx/Makefile
deleted file mode 100644 (file)
index e06cef8..0000000
+++ /dev/null
@@ -1,7 +0,0 @@
-# $DragonFly: src/tools/regression/fsx/Makefile,v 1.1 2003/10/11 13:37:14 drhodus Exp $
-
-PROG=  fsx
-
-NOMAN= yes
-
-.include <bsd.prog.mk>
diff --git a/tools/regression/fsx/fsx.c b/tools/regression/fsx/fsx.c
deleted file mode 100644 (file)
index b75047b..0000000
+++ /dev/null
@@ -1,1148 +0,0 @@
-/*
- * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.2 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- *
- *     File:   fsx.c
- *     Author: Avadis Tevanian, Jr.
- *
- *     File system exerciser. 
- *
- *     Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
- *
- *     Various features from Joe Sokol, Pat Dirks, and Clark Warner.
- *
- *     Small changes to work under Linux -- davej@suse.de
- *
- *     Sundry porting patches from Guy Harris 12/2001
- *
- *     Checks for mmap last-page zero fill.
- *
- * $FreeBSD: src/tools/regression/fsx/fsx.c,v 1.2 2003/04/23 23:42:23 jkh Exp $
- * $DragonFly: src/tools/regression/fsx/fsx.c,v 1.1 2003/10/11 13:37:14 drhodus Exp $
- *
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#ifdef _UWIN
-# include <sys/param.h>
-# include <limits.h>
-# include <time.h>
-# include <strings.h>
-#endif
-#include <fcntl.h>
-#include <sys/mman.h>
-#ifndef MAP_FILE
-# define MAP_FILE 0
-#endif
-#include <limits.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
-#include <errno.h>
-
-#define NUMPRINTCOLUMNS 32     /* # columns of data to print on each line */
-
-/*
- *     A log entry is an operation and a bunch of arguments.
- */
-
-struct log_entry {
-       int     operation;
-       int     args[3];
-};
-
-#define        LOGSIZE 1000
-
-struct log_entry       oplog[LOGSIZE]; /* the log */
-int                    logptr = 0;     /* current position in log */
-int                    logcount = 0;   /* total ops */
-
-/*
- *     Define operations
- */
-
-#define        OP_READ         1
-#define OP_WRITE       2
-#define OP_TRUNCATE    3
-#define OP_CLOSEOPEN   4
-#define OP_MAPREAD     5
-#define OP_MAPWRITE    6
-#define OP_SKIPPED     7
-
-int page_size;
-int page_mask;
-
-char   *original_buf;                  /* a pointer to the original data */
-char   *good_buf;                      /* a pointer to the correct data */
-char   *temp_buf;                      /* a pointer to the current data */
-char   *fname;                         /* name of our test file */
-int    fd;                             /* fd for our test file */
-
-off_t          file_size = 0;
-off_t          biggest = 0;
-char           state[256];
-unsigned long  testcalls = 0;          /* calls to function "test" */
-
-unsigned long  simulatedopcount = 0;   /* -b flag */
-int    closeprob = 0;                  /* -c flag */
-int    debug = 0;                      /* -d flag */
-unsigned long  debugstart = 0;         /* -D flag */
-unsigned long  maxfilelen = 256 * 1024;        /* -l flag */
-int    sizechecks = 1;                 /* -n flag disables them */
-int    maxoplen = 64 * 1024;           /* -o flag */
-int    quiet = 0;                      /* -q flag */
-unsigned long progressinterval = 0;    /* -p flag */
-int    readbdy = 1;                    /* -r flag */
-int    style = 0;                      /* -s flag */
-int    truncbdy = 1;                   /* -t flag */
-int    writebdy = 1;                   /* -w flag */
-long   monitorstart = -1;              /* -m flag */
-long   monitorend = -1;                /* -m flag */
-int    lite = 0;                       /* -L flag */
-long   numops = -1;                    /* -N flag */
-int    randomoplen = 1;                /* -O flag disables it */
-int    seed = 1;                       /* -S flag */
-int     mapped_writes = 1;           /* -W flag disables */
-int    mapped_reads = 1;               /* -R flag disables it */
-int    fsxgoodfd = 0;
-FILE * fsxlogf = NULL;
-int badoff = -1;
-int closeopen = 0;
-
-
-void
-vwarnc(code, fmt, ap)
-       int code;
-       const char *fmt;
-       va_list ap;
-{
-       fprintf(stderr, "fsx: ");
-       if (fmt != NULL) {
-               vfprintf(stderr, fmt, ap);
-               fprintf(stderr, ": ");
-       }
-       fprintf(stderr, "%s\n", strerror(code));
-}
-
-
-void
-warn(const char * fmt, ...)
-{
-       va_list ap;
-       va_start(ap, fmt);
-       vwarnc(errno, fmt, ap);
-       va_end(ap);
-}
-
-
-void
-prt(char *fmt, ...)
-{
-       va_list args;
-
-       va_start(args, fmt);
-       vfprintf(stdout, fmt, args);
-       if (fsxlogf)
-               vfprintf(fsxlogf, fmt, args);
-       va_end(args);
-}
-
-void
-prterr(char *prefix)
-{
-       prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
-}
-
-
-void
-log4(int operation, int arg0, int arg1, int arg2)
-{
-       struct log_entry *le;
-
-       le = &oplog[logptr];
-       le->operation = operation;
-       if (closeopen)
-               le->operation = ~ le->operation;
-       le->args[0] = arg0;
-       le->args[1] = arg1;
-       le->args[2] = arg2;
-       logptr++;
-       logcount++;
-       if (logptr >= LOGSIZE)
-               logptr = 0;
-}
-
-
-void
-logdump(void)
-{
-       int     i, count, down;
-       struct log_entry        *lp;
-
-       prt("LOG DUMP (%d total operations):\n", logcount);
-       if (logcount < LOGSIZE) {
-               i = 0;
-               count = logcount;
-       } else {
-               i = logptr;
-               count = LOGSIZE;
-       }
-       for ( ; count > 0; count--) {
-               int opnum;
-
-               opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
-               prt("%d(%d mod 256): ", opnum, opnum%256);
-               lp = &oplog[i];
-               if ((closeopen = lp->operation < 0))
-                       lp->operation = ~ lp->operation;
-                       
-               switch (lp->operation) {
-               case OP_MAPREAD:
-                       prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
-                           lp->args[0], lp->args[0] + lp->args[1] - 1,
-                           lp->args[1]);
-                       if (badoff >= lp->args[0] && badoff <
-                                                    lp->args[0] + lp->args[1])
-                               prt("\t***RRRR***");
-                       break;
-               case OP_MAPWRITE:
-                       prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
-                           lp->args[0], lp->args[0] + lp->args[1] - 1,
-                           lp->args[1]);
-                       if (badoff >= lp->args[0] && badoff <
-                                                    lp->args[0] + lp->args[1])
-                               prt("\t******WWWW");
-                       break;
-               case OP_READ:
-                       prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
-                           lp->args[0], lp->args[0] + lp->args[1] - 1,
-                           lp->args[1]);
-                       if (badoff >= lp->args[0] &&
-                           badoff < lp->args[0] + lp->args[1])
-                               prt("\t***RRRR***");
-                       break;
-               case OP_WRITE:
-                       prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
-                           lp->args[0], lp->args[0] + lp->args[1] - 1,
-                           lp->args[1]);
-                       if (lp->args[0] > lp->args[2])
-                               prt(" HOLE");
-                       else if (lp->args[0] + lp->args[1] > lp->args[2])
-                               prt(" EXTEND");
-                       if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
-                           badoff < lp->args[0] + lp->args[1])
-                               prt("\t***WWWW");
-                       break;
-               case OP_TRUNCATE:
-                       down = lp->args[0] < lp->args[1];
-                       prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
-                           down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
-                       if (badoff >= lp->args[!down] &&
-                           badoff < lp->args[!!down])
-                               prt("\t******WWWW");
-                       break;
-               case OP_SKIPPED:
-                       prt("SKIPPED (no operation)");
-                       break;
-               default:
-                       prt("BOGUS LOG ENTRY (operation code = %d)!",
-                           lp->operation);
-               }
-               if (closeopen)
-                       prt("\n\t\tCLOSE/OPEN");
-               prt("\n");
-               i++;
-               if (i == LOGSIZE)
-                       i = 0;
-       }
-}
-
-
-void
-save_buffer(char *buffer, off_t bufferlength, int fd)
-{
-       off_t ret;
-       ssize_t byteswritten;
-
-       if (fd <= 0 || bufferlength == 0)
-               return;
-
-       if (bufferlength > SSIZE_MAX) {
-               prt("fsx flaw: overflow in save_buffer\n");
-               exit(67);
-       }
-       if (lite) {
-               off_t size_by_seek = lseek(fd, (off_t)0, SEEK_END);
-               if (size_by_seek == (off_t)-1)
-                       prterr("save_buffer: lseek eof");
-               else if (bufferlength > size_by_seek) {
-                       warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
-                            (unsigned long long)bufferlength);
-                       bufferlength = size_by_seek;
-               }
-       }
-
-       ret = lseek(fd, (off_t)0, SEEK_SET);
-       if (ret == (off_t)-1)
-               prterr("save_buffer: lseek 0");
-       
-       byteswritten = write(fd, buffer, (size_t)bufferlength);
-       if (byteswritten != bufferlength) {
-               if (byteswritten == -1)
-                       prterr("save_buffer write");
-               else
-                       warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
-                            (unsigned)byteswritten,
-                            (unsigned long long)bufferlength);
-       }
-}
-
-
-void
-report_failure(int status)
-{
-       logdump();
-       
-       if (fsxgoodfd) {
-               if (good_buf) {
-                       save_buffer(good_buf, file_size, fsxgoodfd);
-                       prt("Correct content saved for comparison\n");
-                       prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
-                           fname, fname);
-               }
-               close(fsxgoodfd);
-       }
-       exit(status);
-}
-
-
-#define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
-                                       *(((unsigned char *)(cp)) + 1)))
-
-void
-check_buffers(unsigned offset, unsigned size)
-{
-       unsigned char c, t;
-       unsigned i = 0;
-       unsigned n = 0;
-       unsigned op = 0;
-       unsigned bad = 0;
-
-       if (memcmp(good_buf + offset, temp_buf, size) != 0) {
-               prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
-                   offset, size);
-               prt("OFFSET\tGOOD\tBAD\tRANGE\n");
-               while (size > 0) {
-                       c = good_buf[offset];
-                       t = temp_buf[i];
-                       if (c != t) {
-                               if (n == 0) {
-                                       bad = short_at(&temp_buf[i]);
-                                       prt("0x%5x\t0x%04x\t0x%04x", offset,
-                                           short_at(&good_buf[offset]), bad);
-                                       op = temp_buf[offset & 1 ? i+1 : i];
-                               }
-                               n++;
-                               badoff = offset;
-                       }
-                       offset++;
-                       i++;
-                       size--;
-               }
-               if (n) {
-                       prt("\t0x%5x\n", n);
-                       if (bad)
-                               prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
-                       else
-                               prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
-               } else
-                       prt("????????????????\n");
-               report_failure(110);
-       }
-}
-
-
-void
-check_size(void)
-{
-       struct stat     statbuf;
-       off_t   size_by_seek;
-
-       if (fstat(fd, &statbuf)) {
-               prterr("check_size: fstat");
-               statbuf.st_size = -1;
-       }
-       size_by_seek = lseek(fd, (off_t)0, SEEK_END);
-       if (file_size != statbuf.st_size || file_size != size_by_seek) {
-               prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
-                   (unsigned long long)file_size,
-                   (unsigned long long)statbuf.st_size,
-                   (unsigned long long)size_by_seek);
-               report_failure(120);
-       }
-}
-
-
-void
-check_trunc_hack(void)
-{
-       struct stat statbuf;
-
-       ftruncate(fd, (off_t)0);
-       ftruncate(fd, (off_t)100000);
-       fstat(fd, &statbuf);
-       if (statbuf.st_size != (off_t)100000) {
-               prt("no extend on truncate! not posix!\n");
-               exit(130);
-       }
-       ftruncate(fd, (off_t)0);
-}
-
-
-void
-doread(unsigned offset, unsigned size)
-{
-       off_t ret;
-       unsigned iret;
-
-       offset -= offset % readbdy;
-       if (size == 0) {
-               if (!quiet && testcalls > simulatedopcount)
-                       prt("skipping zero size read\n");
-               log4(OP_SKIPPED, OP_READ, offset, size);
-               return;
-       }
-       if (size + offset > file_size) {
-               if (!quiet && testcalls > simulatedopcount)
-                       prt("skipping seek/read past end of file\n");
-               log4(OP_SKIPPED, OP_READ, offset, size);
-               return;
-       }
-
-       log4(OP_READ, 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 read\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("doread: lseek");
-               report_failure(140);
-       }
-       iret = read(fd, temp_buf, size);
-       if (iret != size) {
-               if (iret == -1)
-                       prterr("doread: read");
-               else
-                       prt("short read: 0x%x bytes instead of 0x%x\n",
-                           iret, size);
-               report_failure(141);
-       }
-       check_buffers(offset, size);
-}
-
-
-void
-check_eofpage(char *s, unsigned offset, char *p, int size)
-{
-       unsigned last_page, should_be_zero;
-
-       if (offset + size <= (file_size & ~page_mask))
-               return;
-       /*
-        * we landed in the last page of the file
-        * test to make sure the VM system provided 0's 
-        * beyond the true end of the file mapping
-        * (as required by mmap def in 1996 posix 1003.1)
-        */
-       last_page = ((int)p + (offset & page_mask) + size) & ~page_mask;
-
-       for (should_be_zero = last_page + (file_size & page_mask);
-            should_be_zero < last_page + page_size;
-            should_be_zero++)
-               if (*(char *)should_be_zero) {
-                       prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%x is 0x%04x\n",
-                           s, file_size - 1, should_be_zero & page_mask,
-                           short_at(should_be_zero));
-                       report_failure(205);
-               }
-}
-
-
-void
-domapread(unsigned offset, unsigned size)
-{
-       unsigned pg_offset;
-       unsigned map_size;
-       char    *p;
-
-       offset -= offset % readbdy;
-       if (size == 0) {
-               if (!quiet && testcalls > simulatedopcount)
-                       prt("skipping zero size read\n");
-               log4(OP_SKIPPED, OP_MAPREAD, offset, size);
-               return;
-       }
-       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);
-               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 = NULL;
-       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, NULL, _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;
-}
-