commit - cde79ded160470db64ff8e2874550691b7234fbb
commit + b0481252431ac378c2ce80f325474bf871b128aa
blob - /dev/null
blob + aca4781fedd17b7c972190c74cfd1f1eb69f7c48 (mode 644)
--- /dev/null
+++ tests/tools/fsx.c
+/*
+ * Copyright (C) 1991, NeXT Computer, Inc. All Rights Reserverd.
+ *
+ * File: fsx.c
+ * Author: Avadis Tevanian, Jr.
+ *
+ * File system exerciser.
+ *
+ * Rewritten 8/98 by Conrad Minshall.
+ *
+ * Small changes to work under Linux -- davej@suse.de
+ *
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef _UWIN
+# include <sys/param.h>
+# include <limits.h>
+# include <time.h>
+# include <strings.h>
+# define MAP_FILE 0
+#else
+#ifndef linux
+# include <sys/dirent.h>
+#endif
+#endif
+#include <sys/file.h>
+#include <sys/mman.h>
+#include <limits.h>
+#include <err.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
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+#define PAGE_MASK (PAGE_SIZE - 1)
+
+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
+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, L_XTND);
+ 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%qx bytes instead of 0x%qx\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%qx\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 (bcmp(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, L_XTND);
+ if (file_size != statbuf.st_size || file_size != size_by_seek) {
+ prt("Size error: expected 0x%qx stat 0x%qx seek 0x%qx\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, 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
+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;
+
+#ifdef linux
+ if ((p = (char *)mmap(0, map_size, PROT_READ, MAP_SHARED, fd,
+#else
+ if ((p = (char *)mmap(0, map_size, PROT_READ, MAP_FILE, fd,
+#endif
+ (off_t)(offset - pg_offset))) == (char *)-1) {
+ prterr("domapread: mmap");
+ report_failure(190);
+ }
+ memcpy(temp_buf, p + pg_offset, 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)
+ bzero(good_buf + file_size, 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)
+ bzero(good_buf + file_size, 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);
+ }
+ 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)
+ bzero(good_buf + file_size, 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%qx\n",
+ iret, (unsigned long long)file_size);
+ report_failure(172);
+ }
+ if (lite ? 0 : ftruncate(fd, file_size) == -1) {
+ prt("ftruncate2: %qx\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 & 1) == 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: 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: read() system calls only (mapped reads 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, style, ch;
+ char *endp;
+ char goodfile[1024];
+ char logfile[1024];
+
+ goodfile[0] = 0;
+ logfile[0] = 0;
+
+ 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, L_XTND);
+ 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);
+ bzero(good_buf, maxfilelen);
+ temp_buf = (char *) malloc(maxoplen);
+ bzero(temp_buf, 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;
+}
