2  * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
27  *	Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
31  *	Small changes to work under Linux -- davej@suse.de
35  *	Checks for mmap last-page zero fill.
37  *	Updated license to APSL 2.0, 2004/7/27 - Jordan Hubbard
64 #define NUMPRINTCOLUMNS 32	/* # columns of data to print on each line */
108 long	simulatedopcount = 0;		/* -b flag */
109 int	closeprob = 0;			/* -c flag */
110 int	invlprob = 0;			/* -i flag */
111 int	debug = 0;			/* -d flag */
112 long	debugstart = 0;			/* -D flag */
113 off_t	maxfilelen = 256 * 1024;	/* -l flag */
114 int	sizechecks = 1;			/* -n flag disables them */
115 int	maxoplen = 64 * 1024;		/* -o flag */
116 int	quiet = 0;			/* -q flag */
117 unsigned long progressinterval = 0;	/* -p flag */
118 int	readbdy = 1;			/* -r flag */
119 int	style = 0;			/* -s flag */
120 int	truncbdy = 1;			/* -t flag */
121 int	writebdy = 1;			/* -w flag */
122 long	monitorstart = -1;		/* -m flag */
123 long	monitorend = -1;		/* -m flag */
124 int	lite = 0;			/* -L flag */  variable
125 long	numops = -1;			/* -N flag */
126 int	randomoplen = 1;		/* -O flag disables it */
127 int	seed = 1;			/* -S flag */
128 int     mapped_writes = 1;	      /* -W flag disables */
129 int 	mapped_reads = 1;		/* -R flag disables it */
130 int     mapped_msync = 1;	      /* -U flag disables */
133 int badoff = -1;
167 	le->operation = operation;  in do_log4()
168 	le->args[0] = arg0;  in do_log4()
169 	le->args[1] = arg1;  in do_log4()
170 	le->args[2] = arg2;  in do_log4()
205 	for ( ; count > 0; count--) {  in logdump()
208 		if (lp->operation == OP_CLOSEOPEN ||  in logdump()
209 		    lp->operation == OP_INVALIDATE) {  in logdump()
210 			switch (lp->operation) {  in logdump()
225 		switch (lp->operation) {  in logdump()
228 			    lp->args[0], lp->args[0] + lp->args[1] - 1,  in logdump()
229 			    lp->args[1]);  in logdump()
230 			if (badoff >= lp->args[0] && badoff <  in logdump()
231 						     lp->args[0] + lp->args[1])  in logdump()
236 			    lp->args[0], lp->args[0] + lp->args[1] - 1,  in logdump()
237 			    lp->args[1]);  in logdump()
238 			if (badoff >= lp->args[0] && badoff <  in logdump()
239 						     lp->args[0] + lp->args[1])  in logdump()
244 			    lp->args[0], lp->args[0] + lp->args[1] - 1,  in logdump()
245 			    lp->args[1]);  in logdump()
246 			if (badoff >= lp->args[0] &&  in logdump()
247 			    badoff < lp->args[0] + lp->args[1])  in logdump()
252 				int offset = lp->args[0];  in logdump()
253 				int len = lp->args[1];  in logdump()
254 				int oldlen = lp->args[2];  in logdump()
257 				    offset, offset + len - 1,  in logdump()
269 			down = lp->args[0] < lp->args[1];  in logdump()
271 			    down ? "DOWN" : "UP", lp->args[1], lp->args[0]);  in logdump()
272 			if (badoff >= lp->args[!down] &&  in logdump()
273 			    badoff < lp->args[!!down])  in logdump()
281 			    lp->operation);  in logdump()
305 	if (lite) {  in save_buffer()
307 		if (size_by_seek == (off_t)-1)  in save_buffer()
317 	if (ret == (off_t)-1)  in save_buffer()
322 		if (byteswritten == -1)  in save_buffer()
381 			size--;  in check_buffers()
404 		statbuf.st_size = -1;  in check_size()
426 		prt("no extend on truncate! not posix!\n");  in check_trunc_hack()
439 	offset -= offset % readbdy;  in doread()
461 			(monitorstart == -1 ||  in doread()
463 			  (monitorend == -1 || offset <= monitorend))))))  in doread()
465 		    offset, offset + size - 1, size);  in doread()
467 	if (ret == (off_t)-1) {  in doread()
473 		if (iret == -1)  in doread()
503 			prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%x is 0x%04x\n",  in check_eofpage()
504 			    s, file_size - 1, should_be_zero & page_mask,  in check_eofpage()
518 	offset -= offset % readbdy;  in domapread()
540 			(monitorstart == -1 ||  in domapread()
542 			  (monitorend == -1 || offset <= monitorend))))))  in domapread()
544 		    offset, offset + size - 1, size);  in domapread()
550 			      (off_t)(offset - pg_offset))) == (char *)-1) {  in domapread()
570 	while (size--) {  in gendata()
585 	offset -= offset % writebdy;  in dowrite()
598 			memset(good_buf + file_size, '\0', offset - file_size);  in dowrite()
600 		if (lite) {  in dowrite()
601 			warn("Lite file size bug in fsx!");  in dowrite()
612 			(monitorstart == -1 ||  in dowrite()
614 			  (monitorend == -1 || offset <= monitorend))))))  in dowrite()
616 		    offset, offset + size - 1, size);  in dowrite()
618 	if (ret == (off_t)-1) {  in dowrite()
624 		if (iret == -1)  in dowrite()
642 	offset -= offset % writebdy;  in domapwrite()
656 			memset(good_buf + file_size, '\0', offset - file_size);  in domapwrite()
658 		if (lite) {  in domapwrite()
659 			warn("Lite file size bug in fsx!");  in domapwrite()
670 			(monitorstart == -1 ||  in domapwrite()
672 			  (monitorend == -1 || offset <= monitorend))))))  in domapwrite()
674 		    offset, offset + size - 1, size);  in domapwrite()
677 		if (ftruncate(fd, file_size) == -1) {  in domapwrite()
687 			      (off_t)(offset - pg_offset))) == MAP_FAILED) {  in domapwrite()
711 	size -= size % truncbdy;  in dotruncate()
721 		memset(good_buf + file_size, '\0', size - file_size);  in dotruncate()
728 	    (debug && (monitorstart == -1 || monitorend == -1 ||  in dotruncate()
731 	if (ftruncate(fd, (off_t)size) == -1) {  in dotruncate()
744 	if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {  in writefileimage()
750 		if (iret == -1)  in writefileimage()
757 	if (lite ? 0 : ftruncate(fd, file_size) == -1) {  in writefileimage()
821 	unsigned long	op = rv % (3 + !lite + mapped_writes);  in test()
851 	if (lite ? 0 : op == 3 && style == 0) /* vanilla truncate? */  in test()
856 		if (lite ? 0 : op == 3)  in test()
860 			if (op == 1 || op == (lite ? 3 : 4)) {  in test()
863 					size = maxfilelen - offset;  in test()
874 					size = file_size - offset;  in test()
906 …-dnqLOW] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbd…  in usage()
907 	-b opnum: beginning operation number (default 1)\n\  in usage()
908 	-c P: 1 in P chance of file close+open at each op (default infinity)\n\  in usage()
909 	-d: debug output for all operations\n\  in usage()
910 	-i P: 1 in P chance of calling msync(MS_INVALIDATE) (default infinity)\n\  in usage()
911 	-l flen: the upper bound on file size (default 262144, max 2147483647)\n\  in usage()
912 	-m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\  in usage()
913 	-n: no verifications of file size\n\  in usage()
914 	-o oplen: the upper bound on operation size (default 65536)\n\  in usage()
915 	-p progressinterval: debug output at specified operation interval\n\  in usage()
916 	-q: quieter operation\n\  in usage()
917 	-r readbdy: 4096 would make reads page aligned (default 1)\n\  in usage()
918 	-s style: 1 gives smaller truncates (default 0)\n\  in usage()
919 	-t truncbdy: 4096 would make truncates page aligned (default 1)\n\  in usage()
920 	-w writebdy: 4096 would make writes page aligned (default 1)\n\  in usage()
921 	-D startingop: debug output starting at specified operation\n\  in usage()
922 	-L: fsxLite - no file creations & no file size changes\n\  in usage()
923 	-N numops: total # operations to do (default infinity)\n\  in usage()
924 	-O: use oplen (see -o flag) for every op (default random)\n\  in usage()
925 	-P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\  in usage()
926 	-S seed: for random # generator (default 1) 0 gets timestamp\n\  in usage()
927 	-W: mapped write operations DISabled\n\  in usage()
928 	-R: mapped read operations DISabled)\n\  in usage()
929 	-U: msync after mapped write operations DISabled\n\  in usage()
938 	long long ret = -1;  in getnum()
947 				return (-1);  in getnum()
954 				return (-1);  in getnum()
961 				return (-1);  in getnum()
968 				return (-1);  in getnum()
974 				return (-1);  in getnum()
993 	page_mask = page_size - 1;  in main()
998 	    "b:c:di:l:m:no:p:qr:s:t:w:D:LN:OP:RS:UW")) != -1)  in main()
1007 			simulatedopcount -= 1;  in main()
1045 				monitorend = -1; /* aka infinity */  in main()
1089 			lite = 1;  in main()
1137 	argc -= optind;  in main()
1156 	fd = open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);  in main()
1175 	if (lite) {  in main()
1178 		if (file_size == (off_t)-1) {  in main()
1184 		if (ret == (off_t)-1) {  in main()
1197 	if (lite) {	/* zero entire existing file */  in main()
1202 			if (written == -1) {  in main()
1204 				warn("main: error on write");  in main()
1213 	while (numops == -1 || numops--)  in main()
1220 	prt("All operations completed A-OK!\n");  in main()