init.c revision 509df2bc49284a93efd6b890bdf5e3c4ea2aba4a 
1/*
2 * This file contains job initialization and setup functions.
3 */
4#include <stdio.h>
5#include <stdlib.h>
6#include <unistd.h>
7#include <fcntl.h>
8#include <ctype.h>
9#include <string.h>
10#include <errno.h>
11#include <getopt.h>
12#include <sys/ipc.h>
13#include <sys/shm.h>
14#include <sys/types.h>
15#include <sys/stat.h>
16
17#include "fio.h"
18#include "parse.h"
19
20static char fio_version_string[] = "fio 1.19";
21
22#define FIO_RANDSEED		(0xb1899bedUL)
23
24static char **ini_file;
25static int max_jobs = MAX_JOBS;
26static int dump_cmdline;
27
28struct thread_data def_thread;
29struct thread_data *threads = NULL;
30
31int exitall_on_terminate = 0;
32int terse_output = 0;
33int eta_print;
34unsigned long long mlock_size = 0;
35FILE *f_out = NULL;
36FILE *f_err = NULL;
37char *job_section = NULL;
38
39int write_bw_log = 0;
40int read_only = 0;
41
42static int def_timeout = 0;
43static int write_lat_log = 0;
44
45static int prev_group_jobs;
46
47unsigned long fio_debug = 0;
48
49/*
50 * Command line options. These will contain the above, plus a few
51 * extra that only pertain to fio itself and not jobs.
52 */
53static struct option long_options[FIO_NR_OPTIONS] = {
54	{
55		.name		= "output",
56		.has_arg	= required_argument,
57		.val		= 'o',
58	},
59	{
60		.name		= "timeout",
61		.has_arg	= required_argument,
62		.val		= 't',
63	},
64	{
65		.name		= "latency-log",
66		.has_arg	= required_argument,
67		.val		= 'l',
68	},
69	{
70		.name		= "bandwidth-log",
71		.has_arg	= required_argument,
72		.val		= 'b',
73	},
74	{
75		.name		= "minimal",
76		.has_arg	= optional_argument,
77		.val		= 'm',
78	},
79	{
80		.name		= "version",
81		.has_arg	= no_argument,
82		.val		= 'v',
83	},
84	{
85		.name		= "help",
86		.has_arg	= no_argument,
87		.val		= 'h',
88	},
89	{
90		.name		= "cmdhelp",
91		.has_arg	= optional_argument,
92		.val		= 'c',
93	},
94	{
95		.name		= "showcmd",
96		.has_arg	= no_argument,
97		.val		= 's',
98	},
99	{
100		.name		= "readonly",
101		.has_arg	= no_argument,
102		.val		= 'r',
103	},
104	{
105		.name		= "eta",
106		.has_arg	= required_argument,
107		.val		= 'e',
108	},
109	{
110		.name		= "debug",
111		.has_arg	= required_argument,
112		.val		= 'd',
113	},
114	{
115		.name		= "section",
116		.has_arg	= required_argument,
117		.val		= 'x',
118	},
119	{
120		.name		= NULL,
121	},
122};
123
124FILE *get_f_out()
125{
126	return f_out;
127}
128
129FILE *get_f_err()
130{
131	return f_err;
132}
133
134/*
135 * Return a free job structure.
136 */
137static struct thread_data *get_new_job(int global, struct thread_data *parent)
138{
139	struct thread_data *td;
140
141	if (global)
142		return &def_thread;
143	if (thread_number >= max_jobs)
144		return NULL;
145
146	td = &threads[thread_number++];
147	*td = *parent;
148
149	dup_files(td, parent);
150	options_mem_dupe(td);
151
152	td->thread_number = thread_number;
153	return td;
154}
155
156static void put_job(struct thread_data *td)
157{
158	if (td == &def_thread)
159		return;
160
161	if (td->error)
162		log_info("fio: %s\n", td->verror);
163
164	memset(&threads[td->thread_number - 1], 0, sizeof(*td));
165	thread_number--;
166}
167
168static int setup_rate(struct thread_data *td)
169{
170	unsigned long nr_reads_per_msec;
171	unsigned long long rate;
172	unsigned int bs;
173
174	if (!td->o.rate && !td->o.rate_iops)
175		return 0;
176
177	if (td_rw(td))
178		bs = td->o.rw_min_bs;
179	else if (td_read(td))
180		bs = td->o.min_bs[DDIR_READ];
181	else
182		bs = td->o.min_bs[DDIR_WRITE];
183
184	if (td->o.rate) {
185		rate = td->o.rate;
186		nr_reads_per_msec = (rate * 1024 * 1000LL) / bs;
187	} else
188		nr_reads_per_msec = td->o.rate_iops * 1000UL;
189
190	if (!nr_reads_per_msec) {
191		log_err("rate lower than supported\n");
192		return -1;
193	}
194
195	td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec;
196	td->rate_pending_usleep = 0;
197	return 0;
198}
199
200/*
201 * Lazy way of fixing up options that depend on each other. We could also
202 * define option callback handlers, but this is easier.
203 */
204static int fixup_options(struct thread_data *td)
205{
206	struct thread_options *o = &td->o;
207
208	if (read_only && td_write(td)) {
209		log_err("fio: job <%s> has write bit set, but fio is in read-only mode\n", td->o.name);
210		return 1;
211	}
212
213	if (o->rwmix[DDIR_READ] + o->rwmix[DDIR_WRITE] > 100)
214		o->rwmix[DDIR_WRITE] = 100 - o->rwmix[DDIR_READ];
215
216	if (o->write_iolog_file && o->read_iolog_file) {
217		log_err("fio: read iolog overrides write_iolog\n");
218		free(o->write_iolog_file);
219		o->write_iolog_file = NULL;
220	}
221
222	/*
223	 * only really works for sequential io for now, and with 1 file
224	 */
225	if (o->zone_size && td_random(td) && o->open_files == 1)
226		o->zone_size = 0;
227
228	/*
229	 * Reads can do overwrites, we always need to pre-create the file
230	 */
231	if (td_read(td) || td_rw(td))
232		o->overwrite = 1;
233
234	if (!o->min_bs[DDIR_READ])
235		o->min_bs[DDIR_READ]= o->bs[DDIR_READ];
236	if (!o->max_bs[DDIR_READ])
237		o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
238	if (!o->min_bs[DDIR_WRITE])
239		o->min_bs[DDIR_WRITE]= o->bs[DDIR_WRITE];
240	if (!o->max_bs[DDIR_WRITE])
241		o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
242
243	o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
244
245	if (!o->file_size_high)
246		o->file_size_high = o->file_size_low;
247
248	if (o->norandommap && o->verify != VERIFY_NONE) {
249		log_err("fio: norandommap given, verify disabled\n");
250		o->verify = VERIFY_NONE;
251	}
252	if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
253		log_err("fio: bs_unaligned may not work with raw io\n");
254
255	/*
256	 * thinktime_spin must be less than thinktime
257	 */
258	if (o->thinktime_spin > o->thinktime)
259		o->thinktime_spin = o->thinktime;
260
261	/*
262	 * The low water mark cannot be bigger than the iodepth
263	 */
264	if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
265		/*
266		 * syslet work around - if the workload is sequential,
267		 * we want to let the queue drain all the way down to
268		 * avoid seeking between async threads
269		 */
270		if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
271			o->iodepth_low = 1;
272		else
273			o->iodepth_low = o->iodepth;
274	}
275
276	/*
277	 * If batch number isn't set, default to the same as iodepth
278	 */
279	if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
280		o->iodepth_batch = o->iodepth;
281
282	if (o->nr_files > td->files_index)
283		o->nr_files = td->files_index;
284
285	if (o->open_files > o->nr_files || !o->open_files)
286		o->open_files = o->nr_files;
287
288	if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) {
289		log_err("fio: rate and rate_iops are mutually exclusive\n");
290		return 1;
291	}
292	if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) {
293		log_err("fio: minimum rate exceeds rate\n");
294		return 1;
295	}
296
297	if (!o->timeout && o->time_based) {
298		log_err("fio: time_based requires a runtime/timeout setting\n");
299		o->time_based = 0;
300	}
301
302	if (o->fill_device && !o->size)
303		o->size = ULONG_LONG_MAX;
304
305	if (td_rw(td) && td->o.verify != VERIFY_NONE)
306		log_info("fio: mixed read/write workload with verify. May not "
307		 "work as expected, unless you pre-populated the file\n");
308
309	return 0;
310}
311
312/*
313 * This function leaks the buffer
314 */
315static char *to_kmg(unsigned int val)
316{
317	char *buf = malloc(32);
318	char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
319	char *p = post;
320
321	do {
322		if (val & 1023)
323			break;
324
325		val >>= 10;
326		p++;
327	} while (*p);
328
329	snprintf(buf, 31, "%u%c", val, *p);
330	return buf;
331}
332
333/* External engines are specified by "external:name.o") */
334static const char *get_engine_name(const char *str)
335{
336	char *p = strstr(str, ":");
337
338	if (!p)
339		return str;
340
341	p++;
342	strip_blank_front(&p);
343	strip_blank_end(p);
344	return p;
345}
346
347static int exists_and_not_file(const char *filename)
348{
349	struct stat sb;
350
351	if (lstat(filename, &sb) == -1)
352		return 0;
353
354	if (S_ISREG(sb.st_mode))
355		return 0;
356
357	return 1;
358}
359
360/*
361 * Initialize the various random states we need (random io, block size ranges,
362 * read/write mix, etc).
363 */
364static int init_random_state(struct thread_data *td)
365{
366	unsigned long seeds[6];
367	int fd;
368
369	fd = open("/dev/urandom", O_RDONLY);
370	if (fd == -1) {
371		td_verror(td, errno, "open");
372		return 1;
373	}
374
375	if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
376		td_verror(td, EIO, "read");
377		close(fd);
378		return 1;
379	}
380
381	close(fd);
382
383	os_random_seed(seeds[0], &td->bsrange_state);
384	os_random_seed(seeds[1], &td->verify_state);
385	os_random_seed(seeds[2], &td->rwmix_state);
386
387	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
388		os_random_seed(seeds[3], &td->next_file_state);
389
390	os_random_seed(seeds[5], &td->file_size_state);
391
392	if (!td_random(td))
393		return 0;
394
395	if (td->o.rand_repeatable)
396		seeds[4] = FIO_RANDSEED * td->thread_number;
397
398	os_random_seed(seeds[4], &td->random_state);
399	return 0;
400}
401
402/*
403 * Adds a job to the list of things todo. Sanitizes the various options
404 * to make sure we don't have conflicts, and initializes various
405 * members of td.
406 */
407static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
408{
409	const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
410				   "randread", "randwrite", "randrw" };
411	unsigned int i;
412	const char *engine;
413	char fname[PATH_MAX];
414	int numjobs, file_alloced;
415
416	/*
417	 * the def_thread is just for options, it's not a real job
418	 */
419	if (td == &def_thread)
420		return 0;
421
422	/*
423	 * if we are just dumping the output command line, don't add the job
424	 */
425	if (dump_cmdline) {
426		put_job(td);
427		return 0;
428	}
429
430	engine = get_engine_name(td->o.ioengine);
431	td->io_ops = load_ioengine(td, engine);
432	if (!td->io_ops) {
433		log_err("fio: failed to load engine %s\n", engine);
434		goto err;
435	}
436
437	if (td->o.use_thread)
438		nr_thread++;
439	else
440		nr_process++;
441
442	if (td->o.odirect)
443		td->io_ops->flags |= FIO_RAWIO;
444
445	file_alloced = 0;
446	if (!td->o.filename && !td->files_index) {
447		file_alloced = 1;
448
449		if (td->o.nr_files == 1 && exists_and_not_file(jobname))
450			add_file(td, jobname);
451		else {
452			for (i = 0; i < td->o.nr_files; i++) {
453				sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i);
454				add_file(td, fname);
455			}
456		}
457	}
458
459	if (fixup_options(td))
460		goto err;
461
462	if (td->io_ops->flags & FIO_DISKLESSIO) {
463		struct fio_file *f;
464
465		for_each_file(td, f, i)
466			f->real_file_size = -1ULL;
467	}
468
469	td->mutex = fio_sem_init(0);
470
471	td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
472	td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
473	td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
474	td->ddir_nr = td->o.ddir_nr;
475
476	if ((td->o.stonewall || td->o.numjobs > 1 || td->o.new_group)
477	     && prev_group_jobs) {
478		prev_group_jobs = 0;
479		groupid++;
480	}
481
482	td->groupid = groupid;
483	prev_group_jobs++;
484
485	if (init_random_state(td))
486		goto err;
487
488	if (setup_rate(td))
489		goto err;
490
491	if (td->o.write_lat_log) {
492		setup_log(&td->ts.slat_log);
493		setup_log(&td->ts.clat_log);
494	}
495	if (td->o.write_bw_log)
496		setup_log(&td->ts.bw_log);
497
498	if (!td->o.name)
499		td->o.name = strdup(jobname);
500
501	if (!terse_output) {
502		if (!job_add_num) {
503			if (!strcmp(td->io_ops->name, "cpuio"))
504				log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->o.name, td->o.cpuload, td->o.cpucycle);
505			else {
506				char *c1, *c2, *c3, *c4;
507
508				c1 = to_kmg(td->o.min_bs[DDIR_READ]);
509				c2 = to_kmg(td->o.max_bs[DDIR_READ]);
510				c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
511				c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
512
513				log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->o.name, td->groupid, ddir_str[td->o.td_ddir], c1, c2, c3, c4, td->io_ops->name, td->o.iodepth);
514
515				free(c1);
516				free(c2);
517				free(c3);
518				free(c4);
519			}
520		} else if (job_add_num == 1)
521			log_info("...\n");
522	}
523
524	/*
525	 * recurse add identical jobs, clear numjobs and stonewall options
526	 * as they don't apply to sub-jobs
527	 */
528	numjobs = td->o.numjobs;
529	while (--numjobs) {
530		struct thread_data *td_new = get_new_job(0, td);
531
532		if (!td_new)
533			goto err;
534
535		td_new->o.numjobs = 1;
536		td_new->o.stonewall = 0;
537		td_new->o.new_group = 0;
538
539		if (file_alloced) {
540			td_new->o.filename = NULL;
541			td_new->files_index = 0;
542			td_new->files = NULL;
543		}
544
545		job_add_num = numjobs - 1;
546
547		if (add_job(td_new, jobname, job_add_num))
548			goto err;
549	}
550
551	return 0;
552err:
553	put_job(td);
554	return -1;
555}
556
557static int skip_this_section(const char *name)
558{
559	if (!job_section)
560		return 0;
561	if (!strncmp(name, "global", 6))
562		return 0;
563
564	return strncmp(job_section, name, strlen(job_section));
565}
566
567static int is_empty_or_comment(char *line)
568{
569	unsigned int i;
570
571	for (i = 0; i < strlen(line); i++) {
572		if (line[i] == ';')
573			return 1;
574		if (line[i] == '#')
575			return 1;
576		if (!isspace(line[i]) && !iscntrl(line[i]))
577			return 0;
578	}
579
580	return 1;
581}
582
583/*
584 * This is our [ini] type file parser.
585 */
586static int parse_jobs_ini(char *file, int stonewall_flag)
587{
588	unsigned int global;
589	struct thread_data *td;
590	char *string, *name;
591	FILE *f;
592	char *p;
593	int ret = 0, stonewall;
594	int first_sect = 1;
595	int skip_fgets = 0;
596	int inside_skip = 0;
597
598	if (!strcmp(file, "-"))
599		f = stdin;
600	else
601		f = fopen(file, "r");
602
603	if (!f) {
604		perror("fopen job file");
605		return 1;
606	}
607
608	string = malloc(4096);
609
610	/*
611	 * it's really 256 + small bit, 280 should suffice
612	 */
613	name = malloc(280);
614	memset(name, 0, 280);
615
616	stonewall = stonewall_flag;
617	do {
618		/*
619		 * if skip_fgets is set, we already have loaded a line we
620		 * haven't handled.
621		 */
622		if (!skip_fgets) {
623			p = fgets(string, 4095, f);
624			if (!p)
625				break;
626		}
627
628		skip_fgets = 0;
629		strip_blank_front(&p);
630		strip_blank_end(p);
631
632		if (is_empty_or_comment(p))
633			continue;
634		if (sscanf(p, "[%255s]", name) != 1) {
635			if (inside_skip)
636				continue;
637			log_err("fio: option <%s> outside of [] job section\n", p);
638			break;
639		}
640
641		if (skip_this_section(name)) {
642			inside_skip = 1;
643			continue;
644		} else
645			inside_skip = 0;
646
647		global = !strncmp(name, "global", 6);
648
649		name[strlen(name) - 1] = '\0';
650
651		if (dump_cmdline) {
652			if (first_sect)
653				log_info("fio ");
654			if (!global)
655				log_info("--name=%s ", name);
656			first_sect = 0;
657		}
658
659		td = get_new_job(global, &def_thread);
660		if (!td) {
661			ret = 1;
662			break;
663		}
664
665		/*
666		 * Seperate multiple job files by a stonewall
667		 */
668		if (!global && stonewall) {
669			td->o.stonewall = stonewall;
670			stonewall = 0;
671		}
672
673		while ((p = fgets(string, 4096, f)) != NULL) {
674			if (is_empty_or_comment(p))
675				continue;
676
677			strip_blank_front(&p);
678
679			/*
680			 * new section, break out and make sure we don't
681			 * fgets() a new line at the top.
682			 */
683			if (p[0] == '[') {
684				skip_fgets = 1;
685				break;
686			}
687
688			strip_blank_end(p);
689
690			/*
691			 * Don't break here, continue parsing options so we
692			 * dump all the bad ones. Makes trial/error fixups
693			 * easier on the user.
694			 */
695			ret |= fio_option_parse(td, p);
696			if (!ret && dump_cmdline)
697				log_info("--%s ", p);
698		}
699
700		if (!ret)
701			ret = add_job(td, name, 0);
702		else {
703			log_err("fio: job %s dropped\n", name);
704			put_job(td);
705		}
706	} while (!ret);
707
708	if (dump_cmdline)
709		log_info("\n");
710
711	free(string);
712	free(name);
713	if (f != stdin)
714		fclose(f);
715	return ret;
716}
717
718static int fill_def_thread(void)
719{
720	memset(&def_thread, 0, sizeof(def_thread));
721
722	fio_getaffinity(getpid(), &def_thread.o.cpumask);
723
724	/*
725	 * fill default options
726	 */
727	fio_fill_default_options(&def_thread);
728
729	def_thread.o.timeout = def_timeout;
730	def_thread.o.write_bw_log = write_bw_log;
731	def_thread.o.write_lat_log = write_lat_log;
732
733	return 0;
734}
735
736static void free_shm(void)
737{
738	struct shmid_ds sbuf;
739
740	if (threads) {
741		shmdt((void *) threads);
742		threads = NULL;
743		shmctl(shm_id, IPC_RMID, &sbuf);
744	}
745}
746
747/*
748 * The thread area is shared between the main process and the job
749 * threads/processes. So setup a shared memory segment that will hold
750 * all the job info.
751 */
752static int setup_thread_area(void)
753{
754	/*
755	 * 1024 is too much on some machines, scale max_jobs if
756	 * we get a failure that looks like too large a shm segment
757	 */
758	do {
759		size_t size = max_jobs * sizeof(struct thread_data);
760
761		shm_id = shmget(0, size, IPC_CREAT | 0600);
762		if (shm_id != -1)
763			break;
764		if (errno != EINVAL) {
765			perror("shmget");
766			break;
767		}
768
769		max_jobs >>= 1;
770	} while (max_jobs);
771
772	if (shm_id == -1)
773		return 1;
774
775	threads = shmat(shm_id, NULL, 0);
776	if (threads == (void *) -1) {
777		perror("shmat");
778		return 1;
779	}
780
781	memset(threads, 0, max_jobs * sizeof(struct thread_data));
782	atexit(free_shm);
783	return 0;
784}
785
786static void usage(const char *name)
787{
788	printf("%s\n", fio_version_string);
789	printf("%s [options] [job options] <job file(s)>\n", name);
790	printf("\t--debug=options\tEnable debug logging\n");
791	printf("\t--output\tWrite output to file\n");
792	printf("\t--timeout\tRuntime in seconds\n");
793	printf("\t--latency-log\tGenerate per-job latency logs\n");
794	printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
795	printf("\t--minimal\tMinimal (terse) output\n");
796	printf("\t--version\tPrint version info and exit\n");
797	printf("\t--help\t\tPrint this page\n");
798	printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
799	printf("\t--showcmd\tTurn a job file into command line options\n");
800	printf("\t--eta=when\tWhen ETA estimate should be printed\n");
801	printf("\t          \tMay be \"always\", \"never\" or \"auto\"\n");
802	printf("\t--readonly\tTurn on safety read-only checks, preventing writes\n");
803	printf("\t--section=name\tOnly run specified section in job file\n");
804}
805
806#ifdef FIO_INC_DEBUG
807struct debug_level debug_levels[] = {
808	{ .name = "process",	.shift = FD_PROCESS, },
809	{ .name = "file",	.shift = FD_FILE, },
810	{ .name = "io",		.shift = FD_IO, },
811	{ .name = "mem",	.shift = FD_MEM, },
812	{ .name = "blktrace",	.shift = FD_BLKTRACE },
813	{ .name = "verify",	.shift = FD_VERIFY },
814	{ .name = "random",	.shift = FD_RANDOM },
815	{ },
816};
817
818static int set_debug(const char *string)
819{
820	struct debug_level *dl;
821	char *p = (char *) string;
822	char *opt;
823	int i;
824
825	if (!strcmp(string, "?") || !strcmp(string, "help")) {
826		int i;
827
828		log_info("fio: dumping debug options:");
829		for (i = 0; debug_levels[i].name; i++) {
830			dl = &debug_levels[i];
831			log_info("%s,", dl->name);
832		}
833		log_info("all\n");
834		return 1;
835	} else if (!strcmp(string, "all")) {
836		fio_debug = ~0UL;
837		return 0;
838	}
839
840	while ((opt = strsep(&p, ",")) != NULL) {
841		int found = 0;
842
843		for (i = 0; debug_levels[i].name; i++) {
844			dl = &debug_levels[i];
845			if (!strncmp(opt, dl->name, strlen(opt))) {
846				log_info("fio: set debug option %s\n", opt);
847				found = 1;
848				fio_debug |= (1UL << dl->shift);
849				break;
850			}
851		}
852
853		if (!found)
854			log_err("fio: debug mask %s not found\n", opt);
855	}
856	return 0;
857}
858#else
859static void set_debug(const char *string)
860{
861	log_err("fio: debug tracing not included in build\n");
862	return 1;
863}
864#endif
865
866static int parse_cmd_line(int argc, char *argv[])
867{
868	struct thread_data *td = NULL;
869	int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
870
871	while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
872		switch (c) {
873		case 't':
874			def_timeout = atoi(optarg);
875			break;
876		case 'l':
877			write_lat_log = 1;
878			break;
879		case 'w':
880			write_bw_log = 1;
881			break;
882		case 'o':
883			f_out = fopen(optarg, "w+");
884			if (!f_out) {
885				perror("fopen output");
886				exit(1);
887			}
888			f_err = f_out;
889			break;
890		case 'm':
891			terse_output = 1;
892			break;
893		case 'h':
894			usage(argv[0]);
895			exit(0);
896		case 'c':
897			exit(fio_show_option_help(optarg));
898		case 's':
899			dump_cmdline = 1;
900			break;
901		case 'r':
902			read_only = 1;
903			break;
904		case 'v':
905			printf("%s\n", fio_version_string);
906			exit(0);
907		case 'e':
908			if (!strcmp("always", optarg))
909				eta_print = FIO_ETA_ALWAYS;
910			else if (!strcmp("never", optarg))
911				eta_print = FIO_ETA_NEVER;
912			break;
913		case 'd':
914			if (set_debug(optarg))
915				do_exit++;
916			break;
917		case 'x':
918			if (!strcmp(optarg, "global")) {
919				log_err("fio: can't use global as only section\n");
920				do_exit++;
921				exit_val = 1;
922				break;
923			}
924			if (job_section)
925				free(job_section);
926			job_section = strdup(optarg);
927			break;
928		case FIO_GETOPT_JOB: {
929			const char *opt = long_options[lidx].name;
930			char *val = optarg;
931
932			if (!strncmp(opt, "name", 4) && td) {
933				ret = add_job(td, td->o.name ?: "fio", 0);
934				if (ret) {
935					put_job(td);
936					return 0;
937				}
938				td = NULL;
939			}
940			if (!td) {
941				int is_section = !strncmp(opt, "name", 4);
942				int global = 0;
943
944				if (!is_section || !strncmp(val, "global", 6))
945					global = 1;
946
947				if (is_section && skip_this_section(val))
948					continue;
949
950				td = get_new_job(global, &def_thread);
951				if (!td)
952					return 0;
953			}
954
955			ret = fio_cmd_option_parse(td, opt, val);
956			break;
957		}
958		default:
959			do_exit++;
960			exit_val = 1;
961			break;
962		}
963	}
964
965	if (do_exit)
966		exit(exit_val);
967
968	if (td) {
969		if (!ret)
970			ret = add_job(td, td->o.name ?: "fio", 0);
971		if (ret)
972			put_job(td);
973	}
974
975	while (optind < argc) {
976		ini_idx++;
977		ini_file = realloc(ini_file, ini_idx * sizeof(char *));
978		ini_file[ini_idx - 1] = strdup(argv[optind]);
979		optind++;
980	}
981
982	return ini_idx;
983}
984
985int parse_options(int argc, char *argv[])
986{
987	int job_files, i;
988
989	f_out = stdout;
990	f_err = stderr;
991
992	fio_options_dup_and_init(long_options);
993
994	if (setup_thread_area())
995		return 1;
996	if (fill_def_thread())
997		return 1;
998
999	job_files = parse_cmd_line(argc, argv);
1000
1001	for (i = 0; i < job_files; i++) {
1002		if (fill_def_thread())
1003			return 1;
1004		if (parse_jobs_ini(ini_file[i], i))
1005			return 1;
1006		free(ini_file[i]);
1007	}
1008
1009	free(ini_file);
1010	options_mem_free(&def_thread);
1011
1012	if (!thread_number) {
1013		if (dump_cmdline)
1014			return 0;
1015
1016		log_err("No jobs defined(s)\n");
1017		usage(argv[0]);
1018		return 1;
1019	}
1020
1021	return 0;
1022}
1023