init.c revision 46bcd498f7b3fb55f7f048bf299f36bd8c8f7db1 
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 <sys/ipc.h>
12#include <sys/shm.h>
13#include <sys/types.h>
14#include <sys/stat.h>
15
16#include "fio.h"
17#include "parse.h"
18#include "smalloc.h"
19#include "filehash.h"
20#include "verify.h"
21#include "profile.h"
22#include "server.h"
23
24#include "lib/getopt.h"
25
26#include "fio_version.h"
27
28#if FIO_PATCH > 0
29const char fio_version_string[] =	__fio_stringify(FIO_MAJOR) "."	\
30					__fio_stringify(FIO_MINOR) "."	\
31					__fio_stringify(FIO_PATCH);
32#else
33const char fio_version_string[] =	__fio_stringify(FIO_MAJOR) "."	\
34					__fio_stringify(FIO_MINOR);
35#endif
36
37#define FIO_RANDSEED		(0xb1899bedUL)
38
39static char **ini_file;
40static int max_jobs = FIO_MAX_JOBS;
41static int dump_cmdline;
42static int def_timeout;
43
44static struct thread_data def_thread;
45struct thread_data *threads = NULL;
46
47int exitall_on_terminate = 0;
48int terse_output = 0;
49int eta_print;
50unsigned long long mlock_size = 0;
51FILE *f_out = NULL;
52FILE *f_err = NULL;
53char **job_sections = NULL;
54int nr_job_sections = 0;
55char *exec_profile = NULL;
56int warnings_fatal = 0;
57int terse_version = 3;
58int is_backend = 0;
59int nr_clients = 0;
60int log_syslog = 0;
61
62int write_bw_log = 0;
63int read_only = 0;
64
65static int write_lat_log;
66
67static int prev_group_jobs;
68
69unsigned long fio_debug = 0;
70unsigned int fio_debug_jobno = -1;
71unsigned int *fio_debug_jobp = NULL;
72
73static char cmd_optstr[256];
74static int did_arg;
75
76const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
77	{ .u.f	=  1.0 },
78	{ .u.f	=  5.0 },
79	{ .u.f	= 10.0 },
80	{ .u.f	= 20.0 },
81	{ .u.f	= 30.0 },
82	{ .u.f	= 40.0 },
83	{ .u.f	= 50.0 },
84	{ .u.f	= 60.0 },
85	{ .u.f	= 70.0 },
86	{ .u.f	= 80.0 },
87	{ .u.f	= 90.0 },
88	{ .u.f	= 95.0 },
89	{ .u.f	= 99.0 },
90	{ .u.f	= 99.5 },
91	{ .u.f	= 99.9 },
92};
93
94#define FIO_CLIENT_FLAG		(1 << 16)
95
96/*
97 * Command line options. These will contain the above, plus a few
98 * extra that only pertain to fio itself and not jobs.
99 */
100static struct option l_opts[FIO_NR_OPTIONS] = {
101	{
102		.name		= (char *) "output",
103		.has_arg	= required_argument,
104		.val		= 'o' | FIO_CLIENT_FLAG,
105	},
106	{
107		.name		= (char *) "timeout",
108		.has_arg	= required_argument,
109		.val		= 't' | FIO_CLIENT_FLAG,
110	},
111	{
112		.name		= (char *) "latency-log",
113		.has_arg	= required_argument,
114		.val		= 'l' | FIO_CLIENT_FLAG,
115	},
116	{
117		.name		= (char *) "bandwidth-log",
118		.has_arg	= required_argument,
119		.val		= 'b' | FIO_CLIENT_FLAG,
120	},
121	{
122		.name		= (char *) "minimal",
123		.has_arg	= optional_argument,
124		.val		= 'm' | FIO_CLIENT_FLAG,
125	},
126	{
127		.name		= (char *) "version",
128		.has_arg	= no_argument,
129		.val		= 'v' | FIO_CLIENT_FLAG,
130	},
131	{
132		.name		= (char *) "help",
133		.has_arg	= no_argument,
134		.val		= 'h' | FIO_CLIENT_FLAG,
135	},
136	{
137		.name		= (char *) "cmdhelp",
138		.has_arg	= optional_argument,
139		.val		= 'c' | FIO_CLIENT_FLAG,
140	},
141	{
142		.name		   = (char *) "enghelp",
143		.has_arg	= optional_argument,
144		.val		    = 'i' | FIO_CLIENT_FLAG,
145	},
146	{
147		.name		= (char *) "showcmd",
148		.has_arg	= no_argument,
149		.val		= 's' | FIO_CLIENT_FLAG,
150	},
151	{
152		.name		= (char *) "readonly",
153		.has_arg	= no_argument,
154		.val		= 'r' | FIO_CLIENT_FLAG,
155	},
156	{
157		.name		= (char *) "eta",
158		.has_arg	= required_argument,
159		.val		= 'e' | FIO_CLIENT_FLAG,
160	},
161	{
162		.name		= (char *) "debug",
163		.has_arg	= required_argument,
164		.val		= 'd' | FIO_CLIENT_FLAG,
165	},
166	{
167		.name		= (char *) "section",
168		.has_arg	= required_argument,
169		.val		= 'x' | FIO_CLIENT_FLAG,
170	},
171	{
172		.name		= (char *) "alloc-size",
173		.has_arg	= required_argument,
174		.val		= 'a' | FIO_CLIENT_FLAG,
175	},
176	{
177		.name		= (char *) "profile",
178		.has_arg	= required_argument,
179		.val		= 'p' | FIO_CLIENT_FLAG,
180	},
181	{
182		.name		= (char *) "warnings-fatal",
183		.has_arg	= no_argument,
184		.val		= 'w' | FIO_CLIENT_FLAG,
185	},
186	{
187		.name		= (char *) "max-jobs",
188		.has_arg	= required_argument,
189		.val		= 'j' | FIO_CLIENT_FLAG,
190	},
191	{
192		.name		= (char *) "terse-version",
193		.has_arg	= required_argument,
194		.val		= 'V' | FIO_CLIENT_FLAG,
195	},
196	{
197		.name		= (char *) "server",
198		.has_arg	= optional_argument,
199		.val		= 'S',
200	},
201	{	.name		= (char *) "daemonize",
202		.has_arg	= required_argument,
203		.val		= 'D',
204	},
205	{
206		.name		= (char *) "client",
207		.has_arg	= required_argument,
208		.val		= 'C',
209	},
210	{
211		.name		= NULL,
212	},
213};
214
215static void free_shm(void)
216{
217	struct shmid_ds sbuf;
218
219	if (threads) {
220		void *tp = threads;
221
222		threads = NULL;
223		file_hash_exit();
224		flow_exit();
225		fio_debug_jobp = NULL;
226		shmdt(tp);
227		shmctl(shm_id, IPC_RMID, &sbuf);
228	}
229
230	scleanup();
231}
232
233/*
234 * The thread area is shared between the main process and the job
235 * threads/processes. So setup a shared memory segment that will hold
236 * all the job info. We use the end of the region for keeping track of
237 * open files across jobs, for file sharing.
238 */
239static int setup_thread_area(void)
240{
241	void *hash;
242
243	if (threads)
244		return 0;
245
246	/*
247	 * 1024 is too much on some machines, scale max_jobs if
248	 * we get a failure that looks like too large a shm segment
249	 */
250	do {
251		size_t size = max_jobs * sizeof(struct thread_data);
252
253		size += file_hash_size;
254		size += sizeof(unsigned int);
255
256		shm_id = shmget(0, size, IPC_CREAT | 0600);
257		if (shm_id != -1)
258			break;
259		if (errno != EINVAL && errno != ENOMEM) {
260			perror("shmget");
261			break;
262		}
263
264		max_jobs >>= 1;
265	} while (max_jobs);
266
267	if (shm_id == -1)
268		return 1;
269
270	threads = shmat(shm_id, NULL, 0);
271	if (threads == (void *) -1) {
272		perror("shmat");
273		return 1;
274	}
275
276	memset(threads, 0, max_jobs * sizeof(struct thread_data));
277	hash = (void *) threads + max_jobs * sizeof(struct thread_data);
278	fio_debug_jobp = (void *) hash + file_hash_size;
279	*fio_debug_jobp = -1;
280	file_hash_init(hash);
281
282	flow_init();
283
284	return 0;
285}
286
287/*
288 * Return a free job structure.
289 */
290static struct thread_data *get_new_job(int global, struct thread_data *parent,
291				       int preserve_eo)
292{
293	struct thread_data *td;
294
295	if (global)
296		return &def_thread;
297	if (setup_thread_area()) {
298		log_err("error: failed to setup shm segment\n");
299		return NULL;
300	}
301	if (thread_number >= max_jobs) {
302		log_err("error: maximum number of jobs (%d) reached.\n",
303				max_jobs);
304		return NULL;
305	}
306
307	td = &threads[thread_number++];
308	*td = *parent;
309
310	td->io_ops = NULL;
311	if (!preserve_eo)
312		td->eo = NULL;
313
314	td->o.uid = td->o.gid = -1U;
315
316	dup_files(td, parent);
317	fio_options_mem_dupe(td);
318
319	profile_add_hooks(td);
320
321	td->thread_number = thread_number;
322	return td;
323}
324
325static void put_job(struct thread_data *td)
326{
327	if (td == &def_thread)
328		return;
329
330	profile_td_exit(td);
331	flow_exit_job(td);
332
333	if (td->error)
334		log_info("fio: %s\n", td->verror);
335
336	fio_options_free(td);
337	if (td->io_ops)
338		free_ioengine(td);
339
340	memset(&threads[td->thread_number - 1], 0, sizeof(*td));
341	thread_number--;
342}
343
344static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
345{
346	unsigned int bs = td->o.min_bs[ddir];
347
348	assert(ddir_rw(ddir));
349
350	if (td->o.rate[ddir])
351		td->rate_bps[ddir] = td->o.rate[ddir];
352	else
353		td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
354
355	if (!td->rate_bps[ddir]) {
356		log_err("rate lower than supported\n");
357		return -1;
358	}
359
360	td->rate_pending_usleep[ddir] = 0;
361	return 0;
362}
363
364static int setup_rate(struct thread_data *td)
365{
366	int ret = 0;
367
368	if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
369		ret = __setup_rate(td, DDIR_READ);
370	if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
371		ret |= __setup_rate(td, DDIR_WRITE);
372
373	return ret;
374}
375
376static int fixed_block_size(struct thread_options *o)
377{
378	return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
379		o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
380		o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
381}
382
383/*
384 * Lazy way of fixing up options that depend on each other. We could also
385 * define option callback handlers, but this is easier.
386 */
387static int fixup_options(struct thread_data *td)
388{
389	struct thread_options *o = &td->o;
390	int ret = 0;
391
392#ifndef FIO_HAVE_PSHARED_MUTEX
393	if (!o->use_thread) {
394		log_info("fio: this platform does not support process shared"
395			 " mutexes, forcing use of threads. Use the 'thread'"
396			 " option to get rid of this warning.\n");
397		o->use_thread = 1;
398		ret = warnings_fatal;
399	}
400#endif
401
402	if (o->write_iolog_file && o->read_iolog_file) {
403		log_err("fio: read iolog overrides write_iolog\n");
404		free(o->write_iolog_file);
405		o->write_iolog_file = NULL;
406		ret = warnings_fatal;
407	}
408
409	/*
410	 * only really works with 1 file
411	 */
412	if (o->zone_size && o->open_files == 1)
413		o->zone_size = 0;
414
415	/*
416	 * If zone_range isn't specified, backward compatibility dictates it
417	 * should be made equal to zone_size.
418	 */
419	if (o->zone_size && !o->zone_range)
420		o->zone_range = o->zone_size;
421
422	/*
423	 * Reads can do overwrites, we always need to pre-create the file
424	 */
425	if (td_read(td) || td_rw(td))
426		o->overwrite = 1;
427
428	if (!o->min_bs[DDIR_READ])
429		o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
430	if (!o->max_bs[DDIR_READ])
431		o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
432	if (!o->min_bs[DDIR_WRITE])
433		o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
434	if (!o->max_bs[DDIR_WRITE])
435		o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
436
437	o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
438
439	/*
440	 * For random IO, allow blockalign offset other than min_bs.
441	 */
442	if (!o->ba[DDIR_READ] || !td_random(td))
443		o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
444	if (!o->ba[DDIR_WRITE] || !td_random(td))
445		o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
446
447	if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
448	    o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
449	    !o->norandommap) {
450		log_err("fio: Any use of blockalign= turns off randommap\n");
451		o->norandommap = 1;
452		ret = warnings_fatal;
453	}
454
455	if (!o->file_size_high)
456		o->file_size_high = o->file_size_low;
457
458	if (o->norandommap && o->verify != VERIFY_NONE
459	    && !fixed_block_size(o))  {
460		log_err("fio: norandommap given for variable block sizes, "
461			"verify disabled\n");
462		o->verify = VERIFY_NONE;
463		ret = warnings_fatal;
464	}
465	if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
466		log_err("fio: bs_unaligned may not work with raw io\n");
467
468	/*
469	 * thinktime_spin must be less than thinktime
470	 */
471	if (o->thinktime_spin > o->thinktime)
472		o->thinktime_spin = o->thinktime;
473
474	/*
475	 * The low water mark cannot be bigger than the iodepth
476	 */
477	if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
478		/*
479		 * syslet work around - if the workload is sequential,
480		 * we want to let the queue drain all the way down to
481		 * avoid seeking between async threads
482		 */
483		if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
484			o->iodepth_low = 1;
485		else
486			o->iodepth_low = o->iodepth;
487	}
488
489	/*
490	 * If batch number isn't set, default to the same as iodepth
491	 */
492	if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
493		o->iodepth_batch = o->iodepth;
494
495	if (o->nr_files > td->files_index)
496		o->nr_files = td->files_index;
497
498	if (o->open_files > o->nr_files || !o->open_files)
499		o->open_files = o->nr_files;
500
501	if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
502	    ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
503		o->rate_iops_min[1]))) {
504		log_err("fio: rate and rate_iops are mutually exclusive\n");
505		ret = 1;
506	}
507	if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
508	    (o->rate_iops[0] < o->rate_iops_min[0]) ||
509	    (o->rate_iops[1] < o->rate_iops_min[1])) {
510		log_err("fio: minimum rate exceeds rate\n");
511		ret = 1;
512	}
513
514	if (!o->timeout && o->time_based) {
515		log_err("fio: time_based requires a runtime/timeout setting\n");
516		o->time_based = 0;
517		ret = warnings_fatal;
518	}
519
520	if (o->fill_device && !o->size)
521		o->size = -1ULL;
522
523	if (o->verify != VERIFY_NONE) {
524		if (td_write(td) && o->do_verify && o->numjobs > 1) {
525			log_info("Multiple writers may overwrite blocks that "
526				"belong to other jobs. This can cause "
527				"verification failures.\n");
528			ret = warnings_fatal;
529		}
530
531		o->refill_buffers = 1;
532		if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
533		    !o->verify_interval)
534			o->verify_interval = o->min_bs[DDIR_WRITE];
535	}
536
537	if (o->pre_read) {
538		o->invalidate_cache = 0;
539		if (td->io_ops->flags & FIO_PIPEIO) {
540			log_info("fio: cannot pre-read files with an IO engine"
541				 " that isn't seekable. Pre-read disabled.\n");
542			ret = warnings_fatal;
543		}
544	}
545
546#ifndef FIO_HAVE_FDATASYNC
547	if (o->fdatasync_blocks) {
548		log_info("fio: this platform does not support fdatasync()"
549			 " falling back to using fsync().  Use the 'fsync'"
550			 " option instead of 'fdatasync' to get rid of"
551			 " this warning\n");
552		o->fsync_blocks = o->fdatasync_blocks;
553		o->fdatasync_blocks = 0;
554		ret = warnings_fatal;
555	}
556#endif
557
558#ifdef WIN32
559	/*
560	 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
561	 * so fail if we're passed those flags
562	 */
563	if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
564		log_err("fio: Windows does not support direct or non-buffered io with"
565				" the synchronous ioengines. Use the 'windowsaio' ioengine"
566				" with 'direct=1' and 'iodepth=1' instead.\n");
567		ret = 1;
568	}
569#endif
570
571	/*
572	 * For fully compressible data, just zero them at init time.
573	 * It's faster than repeatedly filling it.
574	 */
575	if (td->o.compress_percentage == 100) {
576		td->o.zero_buffers = 1;
577		td->o.compress_percentage = 0;
578	}
579
580	return ret;
581}
582
583/*
584 * This function leaks the buffer
585 */
586static char *to_kmg(unsigned int val)
587{
588	char *buf = malloc(32);
589	char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
590	char *p = post;
591
592	do {
593		if (val & 1023)
594			break;
595
596		val >>= 10;
597		p++;
598	} while (*p);
599
600	snprintf(buf, 31, "%u%c", val, *p);
601	return buf;
602}
603
604/* External engines are specified by "external:name.o") */
605static const char *get_engine_name(const char *str)
606{
607	char *p = strstr(str, ":");
608
609	if (!p)
610		return str;
611
612	p++;
613	strip_blank_front(&p);
614	strip_blank_end(p);
615	return p;
616}
617
618static int exists_and_not_file(const char *filename)
619{
620	struct stat sb;
621
622	if (lstat(filename, &sb) == -1)
623		return 0;
624
625	/* \\.\ is the device namespace in Windows, where every file
626	 * is a device node */
627	if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
628		return 0;
629
630	return 1;
631}
632
633static void td_fill_rand_seeds_os(struct thread_data *td)
634{
635	os_random_seed(td->rand_seeds[0], &td->bsrange_state);
636	os_random_seed(td->rand_seeds[1], &td->verify_state);
637	os_random_seed(td->rand_seeds[2], &td->rwmix_state);
638
639	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
640		os_random_seed(td->rand_seeds[3], &td->next_file_state);
641
642	os_random_seed(td->rand_seeds[5], &td->file_size_state);
643	os_random_seed(td->rand_seeds[6], &td->trim_state);
644
645	if (!td_random(td))
646		return;
647
648	if (td->o.rand_repeatable)
649		td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
650
651	os_random_seed(td->rand_seeds[4], &td->random_state);
652}
653
654static void td_fill_rand_seeds_internal(struct thread_data *td)
655{
656	init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
657	init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
658	init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
659
660	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
661		init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
662
663	init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
664	init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
665
666	if (!td_random(td))
667		return;
668
669	if (td->o.rand_repeatable)
670		td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
671
672	init_rand_seed(&td->__random_state, td->rand_seeds[4]);
673}
674
675void td_fill_rand_seeds(struct thread_data *td)
676{
677	if (td->o.use_os_rand)
678		td_fill_rand_seeds_os(td);
679	else
680		td_fill_rand_seeds_internal(td);
681
682	init_rand_seed(&td->buf_state, td->rand_seeds[7]);
683}
684
685
686/*
687 * Initializes the ioengine configured for a job, if it has not been done so
688 * already.
689 */
690int ioengine_load(struct thread_data *td)
691{
692	const char *engine;
693
694	/*
695	 * Engine has already been loaded.
696	 */
697	if (td->io_ops)
698		return 0;
699
700	engine = get_engine_name(td->o.ioengine);
701	td->io_ops = load_ioengine(td, engine);
702	if (!td->io_ops) {
703		log_err("fio: failed to load engine %s\n", engine);
704		return 1;
705	}
706
707	if (td->io_ops->option_struct_size && td->io_ops->options) {
708		/*
709		 * In cases where td->eo is set, clone it for a child thread.
710		 * This requires that the parent thread has the same ioengine,
711		 * but that requirement must be enforced by the code which
712		 * cloned the thread.
713		 */
714		void *origeo = td->eo;
715		/*
716		 * Otherwise use the default thread options.
717		 */
718		if (!origeo && td != &def_thread && def_thread.eo &&
719		    def_thread.io_ops->options == td->io_ops->options)
720			origeo = def_thread.eo;
721
722		options_init(td->io_ops->options);
723		td->eo = malloc(td->io_ops->option_struct_size);
724		/*
725		 * Use the default thread as an option template if this uses the
726		 * same options structure and there are non-default options
727		 * used.
728		 */
729		if (origeo) {
730			memcpy(td->eo, origeo, td->io_ops->option_struct_size);
731			options_mem_dupe(td->eo, td->io_ops->options);
732		} else {
733			memset(td->eo, 0, td->io_ops->option_struct_size);
734			fill_default_options(td->eo, td->io_ops->options);
735		}
736		*(struct thread_data **)td->eo = td;
737	}
738
739	return 0;
740}
741
742/*
743 * Adds a job to the list of things todo. Sanitizes the various options
744 * to make sure we don't have conflicts, and initializes various
745 * members of td.
746 */
747static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
748		   int recursed, int client_type)
749{
750	unsigned int i;
751	char fname[PATH_MAX];
752	int numjobs, file_alloced;
753
754	/*
755	 * the def_thread is just for options, it's not a real job
756	 */
757	if (td == &def_thread)
758		return 0;
759
760	/*
761	 * if we are just dumping the output command line, don't add the job
762	 */
763	if (dump_cmdline) {
764		put_job(td);
765		return 0;
766	}
767
768	td->client_type = client_type;
769
770	if (profile_td_init(td))
771		goto err;
772
773	if (ioengine_load(td))
774		goto err;
775
776	if (td->o.use_thread)
777		nr_thread++;
778	else
779		nr_process++;
780
781	if (td->o.odirect)
782		td->io_ops->flags |= FIO_RAWIO;
783
784	file_alloced = 0;
785	if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
786		file_alloced = 1;
787
788		if (td->o.nr_files == 1 && exists_and_not_file(jobname))
789			add_file(td, jobname);
790		else {
791			for (i = 0; i < td->o.nr_files; i++) {
792				sprintf(fname, "%s.%d.%d", jobname,
793							td->thread_number, i);
794				add_file(td, fname);
795			}
796		}
797	}
798
799	if (fixup_options(td))
800		goto err;
801
802	flow_init_job(td);
803
804	/*
805	 * IO engines only need this for option callbacks, and the address may
806	 * change in subprocesses.
807	 */
808	if (td->eo)
809		*(struct thread_data **)td->eo = NULL;
810
811	if (td->io_ops->flags & FIO_DISKLESSIO) {
812		struct fio_file *f;
813
814		for_each_file(td, f, i)
815			f->real_file_size = -1ULL;
816	}
817
818	td->mutex = fio_mutex_init(0);
819
820	td->ts.clat_percentiles = td->o.clat_percentiles;
821	if (td->o.overwrite_plist)
822		memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
823	else
824		memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
825
826	td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
827	td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
828	td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
829	td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
830	td->ddir_seq_nr = td->o.ddir_seq_nr;
831
832	if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
833		prev_group_jobs = 0;
834		groupid++;
835	}
836
837	td->groupid = groupid;
838	prev_group_jobs++;
839
840	if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) {
841		td_verror(td, errno, "init_random_state");
842		goto err;
843	}
844
845	if (setup_rate(td))
846		goto err;
847
848	if (td->o.write_lat_log) {
849		setup_log(&td->lat_log, td->o.log_avg_msec);
850		setup_log(&td->slat_log, td->o.log_avg_msec);
851		setup_log(&td->clat_log, td->o.log_avg_msec);
852	}
853	if (td->o.write_bw_log)
854		setup_log(&td->bw_log, td->o.log_avg_msec);
855	if (td->o.write_iops_log)
856		setup_log(&td->iops_log, td->o.log_avg_msec);
857
858	if (!td->o.name)
859		td->o.name = strdup(jobname);
860
861	if (!terse_output) {
862		if (!job_add_num) {
863			if (is_backend && !recursed)
864				fio_server_send_add_job(&td->o, td->io_ops->name);
865
866			if (!strcmp(td->io_ops->name, "cpuio")) {
867				log_info("%s: ioengine=cpu, cpuload=%u,"
868					 " cpucycle=%u\n", td->o.name,
869							td->o.cpuload,
870							td->o.cpucycle);
871			} else {
872				char *c1, *c2, *c3, *c4;
873
874				c1 = to_kmg(td->o.min_bs[DDIR_READ]);
875				c2 = to_kmg(td->o.max_bs[DDIR_READ]);
876				c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
877				c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
878
879				log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
880					 " ioengine=%s, iodepth=%u\n",
881						td->o.name, td->groupid,
882						ddir_str(td->o.td_ddir),
883						c1, c2, c3, c4,
884						td->io_ops->name,
885						td->o.iodepth);
886
887				free(c1);
888				free(c2);
889				free(c3);
890				free(c4);
891			}
892		} else if (job_add_num == 1)
893			log_info("...\n");
894	}
895
896	/*
897	 * recurse add identical jobs, clear numjobs and stonewall options
898	 * as they don't apply to sub-jobs
899	 */
900	numjobs = td->o.numjobs;
901	while (--numjobs) {
902		struct thread_data *td_new = get_new_job(0, td, 1);
903
904		if (!td_new)
905			goto err;
906
907		td_new->o.numjobs = 1;
908		td_new->o.stonewall = 0;
909		td_new->o.new_group = 0;
910
911		if (file_alloced) {
912			td_new->o.filename = NULL;
913			td_new->files_index = 0;
914			td_new->files_size = 0;
915			td_new->files = NULL;
916		}
917
918		job_add_num = numjobs - 1;
919
920		if (add_job(td_new, jobname, job_add_num, 1, client_type))
921			goto err;
922	}
923
924	return 0;
925err:
926	put_job(td);
927	return -1;
928}
929
930/*
931 * Parse as if 'o' was a command line
932 */
933void add_job_opts(const char **o, int client_type)
934{
935	struct thread_data *td, *td_parent;
936	int i, in_global = 1;
937	char jobname[32];
938
939	i = 0;
940	td_parent = td = NULL;
941	while (o[i]) {
942		if (!strncmp(o[i], "name", 4)) {
943			in_global = 0;
944			if (td)
945				add_job(td, jobname, 0, 0, client_type);
946			td = NULL;
947			sprintf(jobname, "%s", o[i] + 5);
948		}
949		if (in_global && !td_parent)
950			td_parent = get_new_job(1, &def_thread, 0);
951		else if (!in_global && !td) {
952			if (!td_parent)
953				td_parent = &def_thread;
954			td = get_new_job(0, td_parent, 0);
955		}
956		if (in_global)
957			fio_options_parse(td_parent, (char **) &o[i], 1);
958		else
959			fio_options_parse(td, (char **) &o[i], 1);
960		i++;
961	}
962
963	if (td)
964		add_job(td, jobname, 0, 0, client_type);
965}
966
967static int skip_this_section(const char *name)
968{
969	int i;
970
971	if (!nr_job_sections)
972		return 0;
973	if (!strncmp(name, "global", 6))
974		return 0;
975
976	for (i = 0; i < nr_job_sections; i++)
977		if (!strcmp(job_sections[i], name))
978			return 0;
979
980	return 1;
981}
982
983static int is_empty_or_comment(char *line)
984{
985	unsigned int i;
986
987	for (i = 0; i < strlen(line); i++) {
988		if (line[i] == ';')
989			return 1;
990		if (line[i] == '#')
991			return 1;
992		if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
993			return 0;
994	}
995
996	return 1;
997}
998
999/*
1000 * This is our [ini] type file parser.
1001 */
1002int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1003{
1004	unsigned int global;
1005	struct thread_data *td;
1006	char *string, *name;
1007	FILE *f;
1008	char *p;
1009	int ret = 0, stonewall;
1010	int first_sect = 1;
1011	int skip_fgets = 0;
1012	int inside_skip = 0;
1013	char **opts;
1014	int i, alloc_opts, num_opts;
1015
1016	if (is_buf)
1017		f = NULL;
1018	else {
1019		if (!strcmp(file, "-"))
1020			f = stdin;
1021		else
1022			f = fopen(file, "r");
1023
1024		if (!f) {
1025			perror("fopen job file");
1026			return 1;
1027		}
1028	}
1029
1030	string = malloc(4096);
1031
1032	/*
1033	 * it's really 256 + small bit, 280 should suffice
1034	 */
1035	name = malloc(280);
1036	memset(name, 0, 280);
1037
1038	alloc_opts = 8;
1039	opts = malloc(sizeof(char *) * alloc_opts);
1040	num_opts = 0;
1041
1042	stonewall = stonewall_flag;
1043	do {
1044		/*
1045		 * if skip_fgets is set, we already have loaded a line we
1046		 * haven't handled.
1047		 */
1048		if (!skip_fgets) {
1049			if (is_buf)
1050				p = strsep(&file, "\n");
1051			else
1052				p = fgets(string, 4096, f);
1053			if (!p)
1054				break;
1055		}
1056
1057		skip_fgets = 0;
1058		strip_blank_front(&p);
1059		strip_blank_end(p);
1060
1061		if (is_empty_or_comment(p))
1062			continue;
1063		if (sscanf(p, "[%255[^\n]]", name) != 1) {
1064			if (inside_skip)
1065				continue;
1066			log_err("fio: option <%s> outside of [] job section\n",
1067									p);
1068			break;
1069		}
1070
1071		name[strlen(name) - 1] = '\0';
1072
1073		if (skip_this_section(name)) {
1074			inside_skip = 1;
1075			continue;
1076		} else
1077			inside_skip = 0;
1078
1079		global = !strncmp(name, "global", 6);
1080
1081		if (dump_cmdline) {
1082			if (first_sect)
1083				log_info("fio ");
1084			if (!global)
1085				log_info("--name=%s ", name);
1086			first_sect = 0;
1087		}
1088
1089		td = get_new_job(global, &def_thread, 0);
1090		if (!td) {
1091			ret = 1;
1092			break;
1093		}
1094
1095		/*
1096		 * Seperate multiple job files by a stonewall
1097		 */
1098		if (!global && stonewall) {
1099			td->o.stonewall = stonewall;
1100			stonewall = 0;
1101		}
1102
1103		num_opts = 0;
1104		memset(opts, 0, alloc_opts * sizeof(char *));
1105
1106		while (1) {
1107			if (is_buf)
1108				p = strsep(&file, "\n");
1109			else
1110				p = fgets(string, 4096, f);
1111			if (!p)
1112				break;
1113
1114			if (is_empty_or_comment(p))
1115				continue;
1116
1117			strip_blank_front(&p);
1118
1119			/*
1120			 * new section, break out and make sure we don't
1121			 * fgets() a new line at the top.
1122			 */
1123			if (p[0] == '[') {
1124				skip_fgets = 1;
1125				break;
1126			}
1127
1128			strip_blank_end(p);
1129
1130			if (num_opts == alloc_opts) {
1131				alloc_opts <<= 1;
1132				opts = realloc(opts,
1133						alloc_opts * sizeof(char *));
1134			}
1135
1136			opts[num_opts] = strdup(p);
1137			num_opts++;
1138		}
1139
1140		ret = fio_options_parse(td, opts, num_opts);
1141		if (!ret) {
1142			if (dump_cmdline)
1143				for (i = 0; i < num_opts; i++)
1144					log_info("--%s ", opts[i]);
1145
1146			ret = add_job(td, name, 0, 0, type);
1147		} else {
1148			log_err("fio: job %s dropped\n", name);
1149			put_job(td);
1150		}
1151
1152		for (i = 0; i < num_opts; i++)
1153			free(opts[i]);
1154		num_opts = 0;
1155	} while (!ret);
1156
1157	if (dump_cmdline)
1158		log_info("\n");
1159
1160	i = 0;
1161	while (i < nr_job_sections) {
1162		free(job_sections[i]);
1163		i++;
1164	}
1165
1166	for (i = 0; i < num_opts; i++)
1167		free(opts[i]);
1168
1169	free(string);
1170	free(name);
1171	free(opts);
1172	if (!is_buf && f != stdin)
1173		fclose(f);
1174	return ret;
1175}
1176
1177static int fill_def_thread(void)
1178{
1179	memset(&def_thread, 0, sizeof(def_thread));
1180
1181	fio_getaffinity(getpid(), &def_thread.o.cpumask);
1182	def_thread.o.timeout = def_timeout;
1183
1184	/*
1185	 * fill default options
1186	 */
1187	fio_fill_default_options(&def_thread);
1188	return 0;
1189}
1190
1191static void usage(const char *name)
1192{
1193	printf("fio %s\n", fio_version_string);
1194	printf("%s [options] [job options] <job file(s)>\n", name);
1195	printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1196		"\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1197		"\t\t\tdiskutil,job,mutex,profile,time,net\n");
1198	printf("  --output\t\tWrite output to file\n");
1199	printf("  --timeout\t\tRuntime in seconds\n");
1200	printf("  --latency-log\t\tGenerate per-job latency logs\n");
1201	printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1202	printf("  --minimal\t\tMinimal (terse) output\n");
1203	printf("  --version\t\tPrint version info and exit\n");
1204	printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1205	printf("  --help\t\tPrint this page\n");
1206	printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1207		" them\n");
1208	printf("  --enghelp=engine\tPrint ioengine help, or list"
1209		" available ioengines\n");
1210	printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1211		" cmd\n");
1212	printf("  --showcmd\t\tTurn a job file into command line options\n");
1213	printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1214	printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1215	printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1216		" writes\n");
1217	printf("  --section=name\tOnly run specified section in job file\n");
1218	printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1219		" (def 1024)\n");
1220	printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1221	printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1222	printf("  --server=args\t\tStart a backend fio server\n");
1223	printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1224	printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1225	printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1226	printf("\n                 Jens Axboe <jaxboe@fusionio.com>\n");
1227}
1228
1229#ifdef FIO_INC_DEBUG
1230struct debug_level debug_levels[] = {
1231	{ .name = "process",
1232	  .help = "Process creation/exit logging",
1233	  .shift = FD_PROCESS,
1234	},
1235	{ .name = "file",
1236	  .help = "File related action logging",
1237	  .shift = FD_FILE,
1238	},
1239	{ .name = "io",
1240	  .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1241	  .shift = FD_IO,
1242	},
1243	{ .name = "mem",
1244	  .help = "Memory allocation/freeing logging",
1245	  .shift = FD_MEM,
1246	},
1247	{ .name = "blktrace",
1248	  .help = "blktrace action logging",
1249	  .shift = FD_BLKTRACE,
1250	},
1251	{ .name = "verify",
1252	  .help = "IO verification action logging",
1253	  .shift = FD_VERIFY,
1254	},
1255	{ .name = "random",
1256	  .help = "Random generation logging",
1257	  .shift = FD_RANDOM,
1258	},
1259	{ .name = "parse",
1260	  .help = "Parser logging",
1261	  .shift = FD_PARSE,
1262	},
1263	{ .name = "diskutil",
1264	  .help = "Disk utility logging actions",
1265	  .shift = FD_DISKUTIL,
1266	},
1267	{ .name = "job",
1268	  .help = "Logging related to creating/destroying jobs",
1269	  .shift = FD_JOB,
1270	},
1271	{ .name = "mutex",
1272	  .help = "Mutex logging",
1273	  .shift = FD_MUTEX
1274	},
1275	{ .name	= "profile",
1276	  .help = "Logging related to profiles",
1277	  .shift = FD_PROFILE,
1278	},
1279	{ .name = "time",
1280	  .help = "Logging related to time keeping functions",
1281	  .shift = FD_TIME,
1282	},
1283	{ .name = "net",
1284	  .help = "Network logging",
1285	  .shift = FD_NET,
1286	},
1287	{ .name = NULL, },
1288};
1289
1290static int set_debug(const char *string)
1291{
1292	struct debug_level *dl;
1293	char *p = (char *) string;
1294	char *opt;
1295	int i;
1296
1297	if (!strcmp(string, "?") || !strcmp(string, "help")) {
1298		log_info("fio: dumping debug options:");
1299		for (i = 0; debug_levels[i].name; i++) {
1300			dl = &debug_levels[i];
1301			log_info("%s,", dl->name);
1302		}
1303		log_info("all\n");
1304		return 1;
1305	}
1306
1307	while ((opt = strsep(&p, ",")) != NULL) {
1308		int found = 0;
1309
1310		if (!strncmp(opt, "all", 3)) {
1311			log_info("fio: set all debug options\n");
1312			fio_debug = ~0UL;
1313			continue;
1314		}
1315
1316		for (i = 0; debug_levels[i].name; i++) {
1317			dl = &debug_levels[i];
1318			found = !strncmp(opt, dl->name, strlen(dl->name));
1319			if (!found)
1320				continue;
1321
1322			if (dl->shift == FD_JOB) {
1323				opt = strchr(opt, ':');
1324				if (!opt) {
1325					log_err("fio: missing job number\n");
1326					break;
1327				}
1328				opt++;
1329				fio_debug_jobno = atoi(opt);
1330				log_info("fio: set debug jobno %d\n",
1331							fio_debug_jobno);
1332			} else {
1333				log_info("fio: set debug option %s\n", opt);
1334				fio_debug |= (1UL << dl->shift);
1335			}
1336			break;
1337		}
1338
1339		if (!found)
1340			log_err("fio: debug mask %s not found\n", opt);
1341	}
1342	return 0;
1343}
1344#else
1345static int set_debug(const char *string)
1346{
1347	log_err("fio: debug tracing not included in build\n");
1348	return 1;
1349}
1350#endif
1351
1352static void fio_options_fill_optstring(void)
1353{
1354	char *ostr = cmd_optstr;
1355	int i, c;
1356
1357	c = i = 0;
1358	while (l_opts[i].name) {
1359		ostr[c++] = l_opts[i].val;
1360		if (l_opts[i].has_arg == required_argument)
1361			ostr[c++] = ':';
1362		else if (l_opts[i].has_arg == optional_argument) {
1363			ostr[c++] = ':';
1364			ostr[c++] = ':';
1365		}
1366		i++;
1367	}
1368	ostr[c] = '\0';
1369}
1370
1371static int client_flag_set(char c)
1372{
1373	int i;
1374
1375	i = 0;
1376	while (l_opts[i].name) {
1377		int val = l_opts[i].val;
1378
1379		if (c == (val & 0xff))
1380			return (val & FIO_CLIENT_FLAG);
1381
1382		i++;
1383	}
1384
1385	return 0;
1386}
1387
1388void parse_cmd_client(void *client, char *opt)
1389{
1390	fio_client_add_cmd_option(client, opt);
1391}
1392
1393int parse_cmd_line(int argc, char *argv[], int client_type)
1394{
1395	struct thread_data *td = NULL;
1396	int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1397	char *ostr = cmd_optstr;
1398	void *pid_file = NULL;
1399	void *cur_client = NULL;
1400	int backend = 0;
1401
1402	/*
1403	 * Reset optind handling, since we may call this multiple times
1404	 * for the backend.
1405	 */
1406	optind = 1;
1407
1408	while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1409		did_arg = 1;
1410
1411		if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1412			parse_cmd_client(cur_client, argv[optind - 1]);
1413			c &= ~FIO_CLIENT_FLAG;
1414		}
1415
1416		switch (c) {
1417		case 'a':
1418			smalloc_pool_size = atoi(optarg);
1419			break;
1420		case 't':
1421			def_timeout = atoi(optarg);
1422			break;
1423		case 'l':
1424			write_lat_log = 1;
1425			break;
1426		case 'b':
1427			write_bw_log = 1;
1428			break;
1429		case 'o':
1430			f_out = fopen(optarg, "w+");
1431			if (!f_out) {
1432				perror("fopen output");
1433				exit(1);
1434			}
1435			f_err = f_out;
1436			break;
1437		case 'm':
1438			terse_output = 1;
1439			break;
1440		case 'h':
1441			if (!cur_client) {
1442				usage(argv[0]);
1443				do_exit++;
1444			}
1445			break;
1446		case 'c':
1447			if (!cur_client) {
1448				fio_show_option_help(optarg);
1449				do_exit++;
1450			}
1451			break;
1452		case 'i':
1453			if (!cur_client) {
1454				fio_show_ioengine_help(optarg);
1455				do_exit++;
1456			}
1457			break;
1458		case 's':
1459			dump_cmdline = 1;
1460			break;
1461		case 'r':
1462			read_only = 1;
1463			break;
1464		case 'v':
1465			if (!cur_client) {
1466				log_info("fio %s\n", fio_version_string);
1467				do_exit++;
1468			}
1469			break;
1470		case 'V':
1471			terse_version = atoi(optarg);
1472			if (!(terse_version == 2 || terse_version == 3)) {
1473				log_err("fio: bad terse version format\n");
1474				exit_val = 1;
1475				do_exit++;
1476			}
1477			break;
1478		case 'e':
1479			if (!strcmp("always", optarg))
1480				eta_print = FIO_ETA_ALWAYS;
1481			else if (!strcmp("never", optarg))
1482				eta_print = FIO_ETA_NEVER;
1483			break;
1484		case 'd':
1485			if (set_debug(optarg))
1486				do_exit++;
1487			break;
1488		case 'x': {
1489			size_t new_size;
1490
1491			if (!strcmp(optarg, "global")) {
1492				log_err("fio: can't use global as only "
1493					"section\n");
1494				do_exit++;
1495				exit_val = 1;
1496				break;
1497			}
1498			new_size = (nr_job_sections + 1) * sizeof(char *);
1499			job_sections = realloc(job_sections, new_size);
1500			job_sections[nr_job_sections] = strdup(optarg);
1501			nr_job_sections++;
1502			break;
1503			}
1504		case 'p':
1505			exec_profile = strdup(optarg);
1506			break;
1507		case FIO_GETOPT_JOB: {
1508			const char *opt = l_opts[lidx].name;
1509			char *val = optarg;
1510
1511			if (!strncmp(opt, "name", 4) && td) {
1512				ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1513				if (ret)
1514					return 0;
1515				td = NULL;
1516			}
1517			if (!td) {
1518				int is_section = !strncmp(opt, "name", 4);
1519				int global = 0;
1520
1521				if (!is_section || !strncmp(val, "global", 6))
1522					global = 1;
1523
1524				if (is_section && skip_this_section(val))
1525					continue;
1526
1527				td = get_new_job(global, &def_thread, 1);
1528				if (!td || ioengine_load(td))
1529					return 0;
1530				fio_options_set_ioengine_opts(l_opts, td);
1531			}
1532
1533			ret = fio_cmd_option_parse(td, opt, val);
1534
1535			if (!ret && !strcmp(opt, "ioengine")) {
1536				free_ioengine(td);
1537				if (ioengine_load(td))
1538					return 0;
1539				fio_options_set_ioengine_opts(l_opts, td);
1540			}
1541			break;
1542		}
1543		case FIO_GETOPT_IOENGINE: {
1544			const char *opt = l_opts[lidx].name;
1545			char *val = optarg;
1546			opt = l_opts[lidx].name;
1547			val = optarg;
1548			ret = fio_cmd_ioengine_option_parse(td, opt, val);
1549			break;
1550		}
1551		case 'w':
1552			warnings_fatal = 1;
1553			break;
1554		case 'j':
1555			max_jobs = atoi(optarg);
1556			if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1557				log_err("fio: invalid max jobs: %d\n", max_jobs);
1558				do_exit++;
1559				exit_val = 1;
1560			}
1561			break;
1562		case 'S':
1563			if (nr_clients) {
1564				log_err("fio: can't be both client and server\n");
1565				do_exit++;
1566				exit_val = 1;
1567				break;
1568			}
1569			if (optarg)
1570				fio_server_set_arg(optarg);
1571			is_backend = 1;
1572			backend = 1;
1573			break;
1574		case 'D':
1575			pid_file = strdup(optarg);
1576			break;
1577		case 'C':
1578			if (is_backend) {
1579				log_err("fio: can't be both client and server\n");
1580				do_exit++;
1581				exit_val = 1;
1582				break;
1583			}
1584			if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
1585				log_err("fio: failed adding client %s\n", optarg);
1586				do_exit++;
1587				exit_val = 1;
1588				break;
1589			}
1590			break;
1591		default:
1592			do_exit++;
1593			exit_val = 1;
1594			break;
1595		}
1596		if (do_exit)
1597			break;
1598	}
1599
1600	if (do_exit) {
1601		if (exit_val && !(is_backend || nr_clients))
1602			exit(exit_val);
1603	}
1604
1605	if (nr_clients && fio_clients_connect()) {
1606		do_exit++;
1607		exit_val = 1;
1608		return -1;
1609	}
1610
1611	if (is_backend && backend)
1612		return fio_start_server(pid_file);
1613
1614	if (td) {
1615		if (!ret)
1616			ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1617	}
1618
1619	while (!ret && optind < argc) {
1620		ini_idx++;
1621		ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1622		ini_file[ini_idx - 1] = strdup(argv[optind]);
1623		optind++;
1624	}
1625
1626	return ini_idx;
1627}
1628
1629int fio_init_options(void)
1630{
1631	f_out = stdout;
1632	f_err = stderr;
1633
1634	fio_options_fill_optstring();
1635	fio_options_dup_and_init(l_opts);
1636
1637	atexit(free_shm);
1638
1639	if (fill_def_thread())
1640		return 1;
1641
1642	return 0;
1643}
1644
1645extern int fio_check_options(struct thread_options *);
1646
1647int parse_options(int argc, char *argv[])
1648{
1649	const int type = FIO_CLIENT_TYPE_CLI;
1650	int job_files, i;
1651
1652	if (fio_init_options())
1653		return 1;
1654	if (fio_test_cconv(&def_thread.o))
1655		log_err("fio: failed internal cconv test\n");
1656
1657	job_files = parse_cmd_line(argc, argv, type);
1658
1659	if (job_files > 0) {
1660		for (i = 0; i < job_files; i++) {
1661			if (fill_def_thread())
1662				return 1;
1663			if (nr_clients) {
1664				if (fio_clients_send_ini(ini_file[i]))
1665					return 1;
1666				free(ini_file[i]);
1667			} else if (!is_backend) {
1668				if (parse_jobs_ini(ini_file[i], 0, i, type))
1669					return 1;
1670				free(ini_file[i]);
1671			}
1672		}
1673	}
1674
1675	free(ini_file);
1676	fio_options_free(&def_thread);
1677
1678	if (!thread_number) {
1679		if (dump_cmdline)
1680			return 0;
1681		if (exec_profile)
1682			return 0;
1683		if (is_backend || nr_clients)
1684			return 0;
1685		if (did_arg)
1686			return 0;
1687
1688		log_err("No jobs(s) defined\n\n");
1689
1690		if (!did_arg) {
1691			usage(argv[0]);
1692			return 1;
1693		}
1694
1695		return 0;
1696	}
1697
1698	if (def_thread.o.gtod_offload) {
1699		fio_gtod_init();
1700		fio_gtod_offload = 1;
1701		fio_gtod_cpu = def_thread.o.gtod_cpu;
1702	}
1703
1704	if (!terse_output)
1705		log_info("fio %s\n", fio_version_string);
1706
1707	return 0;
1708}
1709