2  * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
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
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 */
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()
227 			prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",  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()
235 			prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",  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()
243 			prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",  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()  local
253 				int len = lp->args[1];  in logdump()
254 				int oldlen = lp->args[2];  in logdump()
256 				prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",  in logdump()
257 				    offset, offset + len - 1,  in logdump()
259 				if (offset > oldlen)  in logdump()
261 				else if (offset + len > oldlen)  in logdump()
263 				if ((badoff >= offset || badoff >=oldlen) &&  in logdump()
264 				    badoff < offset + len)  in logdump()
269 			down = lp->args[0] < lp->args[1];  in logdump()
270 			prt("TRUNCATE %s\tfrom 0x%x to 0x%x",  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()
307 		if (size_by_seek == (off_t)-1)  in save_buffer()
310 …warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsign…  in save_buffer()
317 	if (ret == (off_t)-1)  in save_buffer()
322 		if (byteswritten == -1)  in save_buffer()
325 			warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",  in save_buffer()
354 check_buffers(unsigned offset, unsigned size)  in check_buffers()  argument
362 	if (memcmp(good_buf + offset, temp_buf, size) != 0) {  in check_buffers()
363 		prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",  in check_buffers()
364 		    offset, size);  in check_buffers()
365 		prt("OFFSET\tGOOD\tBAD\tRANGE\n");  in check_buffers()
367 			c = good_buf[offset];  in check_buffers()
372 					prt("0x%5x\t0x%04x\t0x%04x", offset,  in check_buffers()
373 					    short_at(&good_buf[offset]), bad);  in check_buffers()
374 					op = temp_buf[offset & 1 ? i+1 : i];  in check_buffers()
377 				badoff = offset;  in check_buffers()
379 			offset++;  in check_buffers()
381 			size--;  in check_buffers()
384 			prt("\t0x%5x\n", n);  in check_buffers()
404 		statbuf.st_size = -1;  in check_size()
408 		prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",  in check_size()
434 doread(off_t offset, off_t size)  in doread()  argument
439 	offset -= offset % readbdy;  in doread()
443 		log4(OP_SKIPPED, OP_READ, offset, size);  in doread()
446 	if (size + offset > file_size) {  in doread()
449 		log4(OP_SKIPPED, OP_READ, offset, size);  in doread()
453 	log4(OP_READ, offset, size, 0);  in doread()
461 			(monitorstart == -1 ||  in doread()
462 			 (offset + size > monitorstart &&  in doread()
463 			  (monitorend == -1 || offset <= monitorend))))))  in doread()
464 		prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,  in doread()
465 		    offset, offset + size - 1, size);  in doread()
466 	ret = lseek(fd, (off_t)offset, SEEK_SET);  in doread()
467 	if (ret == (off_t)-1) {  in doread()
473 		if (iret == -1)  in doread()
476 			prt("short read: 0x%x bytes instead of 0x%x\n",  in doread()
480 	check_buffers(offset, size);  in doread()
485 check_eofpage(const char *s, unsigned offset, char *p, int size)  in check_eofpage()  argument
489 	if (offset + size <= (file_size & ~page_mask))  in check_eofpage()
497 	last_page = ((uintptr_t)p + (offset & page_mask) + size) & ~page_mask;  in check_eofpage()
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()
512 domapread(unsigned offset, unsigned size)  in domapread()  argument
518 	offset -= offset % readbdy;  in domapread()
522 		log4(OP_SKIPPED, OP_MAPREAD, offset, size);  in domapread()
525 	if (size + offset > file_size) {  in domapread()
528 		log4(OP_SKIPPED, OP_MAPREAD, offset, size);  in domapread()
532 	log4(OP_MAPREAD, offset, size, 0);  in domapread()
540 			(monitorstart == -1 ||  in domapread()
541 			 (offset + size > monitorstart &&  in domapread()
542 			  (monitorend == -1 || offset <= monitorend))))))  in domapread()
543 		prt("%lu mapread\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,  in domapread()
544 		    offset, offset + size - 1, size);  in domapread()
546 	pg_offset = offset & page_mask;  in domapread()
550 			      (off_t)(offset - pg_offset))) == (char *)-1) {  in domapread()
556 	check_eofpage("Read", offset, p, size);  in domapread()
563 	check_buffers(offset, size);  in domapread()
568 gendata(unsigned offset, unsigned size)  in gendata()  argument
570 	while (size--) {  in gendata()
571 		good_buf[offset] = testcalls % 256;   in gendata()
572 		if (offset % 2)  in gendata()
573 			good_buf[offset] += original_buf[offset];  in gendata()
574 		offset++;  in gendata()
580 dowrite(unsigned offset, unsigned size)  in dowrite()  argument
585 	offset -= offset % writebdy;  in dowrite()
589 		log4(OP_SKIPPED, OP_WRITE, offset, size);  in dowrite()
593 	log4(OP_WRITE, offset, size, file_size);  in dowrite()
595 	gendata(offset, size);  in dowrite()
596 	if (file_size < offset + size) {  in dowrite()
597 		if (file_size < offset)  in dowrite()
598 			memset(good_buf + file_size, '\0', offset - file_size);  in dowrite()
599 		file_size = offset + size;  in dowrite()
612 			(monitorstart == -1 ||  in dowrite()
613 			 (offset + size > monitorstart &&  in dowrite()
614 			  (monitorend == -1 || offset <= monitorend))))))  in dowrite()
615 		prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,  in dowrite()
616 		    offset, offset + size - 1, size);  in dowrite()
617 	ret = lseek(fd, (off_t)offset, SEEK_SET);  in dowrite()
618 	if (ret == (off_t)-1) {  in dowrite()
622 	iret = write(fd, good_buf + offset, size);  in dowrite()
624 		if (iret == -1)  in dowrite()
627 			prt("short write: 0x%x bytes instead of 0x%x\n",  in dowrite()
635 domapwrite(unsigned offset, unsigned size)  in domapwrite()  argument
642 	offset -= offset % writebdy;  in domapwrite()
646 		log4(OP_SKIPPED, OP_MAPWRITE, offset, size);  in domapwrite()
651 	log4(OP_MAPWRITE, offset, size, 0);  in domapwrite()
653 	gendata(offset, size);  in domapwrite()
654 	if (file_size < offset + size) {  in domapwrite()
655 		if (file_size < offset)  in domapwrite()
656 			memset(good_buf + file_size, '\0', offset - file_size);  in domapwrite()
657 		file_size = offset + size;  in domapwrite()
670 			(monitorstart == -1 ||  in domapwrite()
671 			 (offset + size > monitorstart &&  in domapwrite()
672 			  (monitorend == -1 || offset <= monitorend))))))  in domapwrite()
673 		prt("%lu mapwrite\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,  in domapwrite()
674 		    offset, offset + size - 1, size);  in domapwrite()
677 		if (ftruncate(fd, file_size) == -1) {  in domapwrite()
682 	pg_offset = offset & page_mask;  in domapwrite()
687 			      (off_t)(offset - pg_offset))) == MAP_FAILED) {  in domapwrite()
691 	memcpy(p + pg_offset, good_buf + offset, size);  in domapwrite()
697 	check_eofpage("Write", offset, p, size);  in domapwrite()
711 	size -= size % truncbdy;  in dotruncate()
715 			prt("truncating to largest ever: 0x%x\n", size);  in dotruncate()
721 		memset(good_buf + file_size, '\0', size - file_size);  in dotruncate()
728 	    (debug && (monitorstart == -1 || monitorend == -1 ||  in dotruncate()
730 		prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);  in dotruncate()
731 	if (ftruncate(fd, (off_t)size) == -1) {  in dotruncate()
732 		prt("ftruncate1: %x\n", size);  in dotruncate()
744 	if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {  in writefileimage()
750 		if (iret == -1)  in writefileimage()
753 			prt("short write: 0x%x bytes instead of 0x%llx\n",  in writefileimage()
757 	if (lite ? 0 : ftruncate(fd, file_size) == -1) {  in writefileimage()
818 	off_t		offset;  in test()  local
859 			offset = random();  in test()
861 				offset %= maxfilelen;  in test()
862 				if (offset + size > maxfilelen)  in test()
863 					size = maxfilelen - offset;  in test()
865 					domapwrite(offset, size);  in test()
867 					dowrite(offset, size);  in test()
870 					offset %= file_size;  in test()
872 					offset = 0;  in test()
873 				if (offset + size > file_size)  in test()
874 					size = file_size - offset;  in test()
876 					domapread(offset, size);  in test()
878 					doread(offset, size);  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()
1137 	argc -= optind;  in main()
1178 		if (file_size == (off_t)-1) {  in main()
1184 		if (ret == (off_t)-1) {  in main()
1202 			if (written == -1) {  in main()
1206 				warn("main: short write, 0x%x bytes instead of 0x%lx\n",  in main()
1213 	while (numops == -1 || numops--)  in main()
1220 	prt("All operations completed A-OK!\n");  in main()