init.c revision e65a950ab73d7d91f267ad7f7b084d94e266fcb0 
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
26const char fio_version_string[] = FIO_VERSION;
27
28#define FIO_RANDSEED		(0xb1899bedUL)
29
30static char **ini_file;
31static int max_jobs = FIO_MAX_JOBS;
32static int dump_cmdline;
33static int def_timeout;
34
35static struct thread_data def_thread;
36struct thread_data *threads = NULL;
37
38int exitall_on_terminate = 0;
39int output_format = FIO_OUTPUT_NORMAL;
40int eta_print;
41FILE *f_out = NULL;
42FILE *f_err = NULL;
43char **job_sections = NULL;
44int nr_job_sections = 0;
45char *exec_profile = NULL;
46int warnings_fatal = 0;
47int terse_version = 3;
48int is_backend = 0;
49int nr_clients = 0;
50int log_syslog = 0;
51
52int write_bw_log = 0;
53int read_only = 0;
54
55static int write_lat_log;
56
57static int prev_group_jobs;
58
59unsigned long fio_debug = 0;
60unsigned int fio_debug_jobno = -1;
61unsigned int *fio_debug_jobp = NULL;
62
63static char cmd_optstr[256];
64static int did_arg;
65
66const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
67	{ .u.f	=  1.00 },
68	{ .u.f	=  5.00 },
69	{ .u.f	= 10.00 },
70	{ .u.f	= 20.00 },
71	{ .u.f	= 30.00 },
72	{ .u.f	= 40.00 },
73	{ .u.f	= 50.00 },
74	{ .u.f	= 60.00 },
75	{ .u.f	= 70.00 },
76	{ .u.f	= 80.00 },
77	{ .u.f	= 90.00 },
78	{ .u.f	= 95.00 },
79	{ .u.f	= 99.00 },
80	{ .u.f	= 99.50 },
81	{ .u.f	= 99.90 },
82	{ .u.f	= 99.95 },
83	{ .u.f	= 99.99 },
84};
85
86#define FIO_CLIENT_FLAG		(1 << 16)
87
88/*
89 * Command line options. These will contain the above, plus a few
90 * extra that only pertain to fio itself and not jobs.
91 */
92static struct option l_opts[FIO_NR_OPTIONS] = {
93	{
94		.name		= (char *) "output",
95		.has_arg	= required_argument,
96		.val		= 'o' | FIO_CLIENT_FLAG,
97	},
98	{
99		.name		= (char *) "timeout",
100		.has_arg	= required_argument,
101		.val		= 't' | FIO_CLIENT_FLAG,
102	},
103	{
104		.name		= (char *) "latency-log",
105		.has_arg	= required_argument,
106		.val		= 'l' | FIO_CLIENT_FLAG,
107	},
108	{
109		.name		= (char *) "bandwidth-log",
110		.has_arg	= required_argument,
111		.val		= 'b' | FIO_CLIENT_FLAG,
112	},
113	{
114		.name		= (char *) "minimal",
115		.has_arg	= optional_argument,
116		.val		= 'm' | FIO_CLIENT_FLAG,
117	},
118	{
119		.name		= (char *) "output-format",
120		.has_arg	= optional_argument,
121		.val		= 'F' | FIO_CLIENT_FLAG,
122	},
123	{
124		.name		= (char *) "version",
125		.has_arg	= no_argument,
126		.val		= 'v' | FIO_CLIENT_FLAG,
127	},
128	{
129		.name		= (char *) "help",
130		.has_arg	= no_argument,
131		.val		= 'h' | FIO_CLIENT_FLAG,
132	},
133	{
134		.name		= (char *) "cmdhelp",
135		.has_arg	= optional_argument,
136		.val		= 'c' | FIO_CLIENT_FLAG,
137	},
138	{
139		.name		   = (char *) "enghelp",
140		.has_arg	= optional_argument,
141		.val		    = 'i' | FIO_CLIENT_FLAG,
142	},
143	{
144		.name		= (char *) "showcmd",
145		.has_arg	= no_argument,
146		.val		= 's' | FIO_CLIENT_FLAG,
147	},
148	{
149		.name		= (char *) "readonly",
150		.has_arg	= no_argument,
151		.val		= 'r' | FIO_CLIENT_FLAG,
152	},
153	{
154		.name		= (char *) "eta",
155		.has_arg	= required_argument,
156		.val		= 'e' | FIO_CLIENT_FLAG,
157	},
158	{
159		.name		= (char *) "debug",
160		.has_arg	= required_argument,
161		.val		= 'd' | FIO_CLIENT_FLAG,
162	},
163	{
164		.name		= (char *) "section",
165		.has_arg	= required_argument,
166		.val		= 'x' | FIO_CLIENT_FLAG,
167	},
168	{
169		.name		= (char *) "alloc-size",
170		.has_arg	= required_argument,
171		.val		= 'a' | FIO_CLIENT_FLAG,
172	},
173	{
174		.name		= (char *) "profile",
175		.has_arg	= required_argument,
176		.val		= 'p' | FIO_CLIENT_FLAG,
177	},
178	{
179		.name		= (char *) "warnings-fatal",
180		.has_arg	= no_argument,
181		.val		= 'w' | FIO_CLIENT_FLAG,
182	},
183	{
184		.name		= (char *) "max-jobs",
185		.has_arg	= required_argument,
186		.val		= 'j' | FIO_CLIENT_FLAG,
187	},
188	{
189		.name		= (char *) "terse-version",
190		.has_arg	= required_argument,
191		.val		= 'V' | FIO_CLIENT_FLAG,
192	},
193	{
194		.name		= (char *) "server",
195		.has_arg	= optional_argument,
196		.val		= 'S',
197	},
198	{	.name		= (char *) "daemonize",
199		.has_arg	= required_argument,
200		.val		= 'D',
201	},
202	{
203		.name		= (char *) "client",
204		.has_arg	= required_argument,
205		.val		= 'C',
206	},
207	{
208		.name		= NULL,
209	},
210};
211
212void free_threads_shm(void)
213{
214	struct shmid_ds sbuf;
215
216	if (threads) {
217		void *tp = threads;
218
219		threads = NULL;
220		shmdt(tp);
221		shmctl(shm_id, IPC_RMID, &sbuf);
222		shm_id = -1;
223	}
224}
225
226void free_shm(void)
227{
228	if (threads) {
229		file_hash_exit();
230		flow_exit();
231		fio_debug_jobp = NULL;
232		free_threads_shm();
233	}
234
235	scleanup();
236}
237
238/*
239 * The thread area is shared between the main process and the job
240 * threads/processes. So setup a shared memory segment that will hold
241 * all the job info. We use the end of the region for keeping track of
242 * open files across jobs, for file sharing.
243 */
244static int setup_thread_area(void)
245{
246	void *hash;
247
248	if (threads)
249		return 0;
250
251	/*
252	 * 1024 is too much on some machines, scale max_jobs if
253	 * we get a failure that looks like too large a shm segment
254	 */
255	do {
256		size_t size = max_jobs * sizeof(struct thread_data);
257
258		size += file_hash_size;
259		size += sizeof(unsigned int);
260
261		shm_id = shmget(0, size, IPC_CREAT | 0600);
262		if (shm_id != -1)
263			break;
264		if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
265			perror("shmget");
266			break;
267		}
268
269		max_jobs >>= 1;
270	} while (max_jobs);
271
272	if (shm_id == -1)
273		return 1;
274
275	threads = shmat(shm_id, NULL, 0);
276	if (threads == (void *) -1) {
277		perror("shmat");
278		return 1;
279	}
280
281	memset(threads, 0, max_jobs * sizeof(struct thread_data));
282	hash = (void *) threads + max_jobs * sizeof(struct thread_data);
283	fio_debug_jobp = (void *) hash + file_hash_size;
284	*fio_debug_jobp = -1;
285	file_hash_init(hash);
286
287	flow_init();
288
289	return 0;
290}
291
292/*
293 * Return a free job structure.
294 */
295static struct thread_data *get_new_job(int global, struct thread_data *parent,
296				       int preserve_eo)
297{
298	struct thread_data *td;
299
300	if (global)
301		return &def_thread;
302	if (setup_thread_area()) {
303		log_err("error: failed to setup shm segment\n");
304		return NULL;
305	}
306	if (thread_number >= max_jobs) {
307		log_err("error: maximum number of jobs (%d) reached.\n",
308				max_jobs);
309		return NULL;
310	}
311
312	td = &threads[thread_number++];
313	*td = *parent;
314
315	td->io_ops = NULL;
316	if (!preserve_eo)
317		td->eo = NULL;
318
319	td->o.uid = td->o.gid = -1U;
320
321	dup_files(td, parent);
322	fio_options_mem_dupe(td);
323
324	profile_add_hooks(td);
325
326	td->thread_number = thread_number;
327	return td;
328}
329
330static void put_job(struct thread_data *td)
331{
332	if (td == &def_thread)
333		return;
334
335	profile_td_exit(td);
336	flow_exit_job(td);
337
338	if (td->error)
339		log_info("fio: %s\n", td->verror);
340
341	fio_options_free(td);
342	if (td->io_ops)
343		free_ioengine(td);
344
345	memset(&threads[td->thread_number - 1], 0, sizeof(*td));
346	thread_number--;
347}
348
349static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
350{
351	unsigned int bs = td->o.min_bs[ddir];
352
353	assert(ddir_rw(ddir));
354
355	if (td->o.rate[ddir])
356		td->rate_bps[ddir] = td->o.rate[ddir];
357	else
358		td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
359
360	if (!td->rate_bps[ddir]) {
361		log_err("rate lower than supported\n");
362		return -1;
363	}
364
365	td->rate_pending_usleep[ddir] = 0;
366	return 0;
367}
368
369static int setup_rate(struct thread_data *td)
370{
371	int ret = 0;
372
373	if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
374		ret = __setup_rate(td, DDIR_READ);
375	if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
376		ret |= __setup_rate(td, DDIR_WRITE);
377	if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
378		ret |= __setup_rate(td, DDIR_TRIM);
379
380	return ret;
381}
382
383static int fixed_block_size(struct thread_options *o)
384{
385	return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
386		o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
387		o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
388		o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
389		o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
390}
391
392/*
393 * Lazy way of fixing up options that depend on each other. We could also
394 * define option callback handlers, but this is easier.
395 */
396static int fixup_options(struct thread_data *td)
397{
398	struct thread_options *o = &td->o;
399	int ret = 0;
400
401#ifndef FIO_HAVE_PSHARED_MUTEX
402	if (!o->use_thread) {
403		log_info("fio: this platform does not support process shared"
404			 " mutexes, forcing use of threads. Use the 'thread'"
405			 " option to get rid of this warning.\n");
406		o->use_thread = 1;
407		ret = warnings_fatal;
408	}
409#endif
410
411	if (o->write_iolog_file && o->read_iolog_file) {
412		log_err("fio: read iolog overrides write_iolog\n");
413		free(o->write_iolog_file);
414		o->write_iolog_file = NULL;
415		ret = warnings_fatal;
416	}
417
418	/*
419	 * only really works with 1 file
420	 */
421	if (o->zone_size && o->open_files == 1)
422		o->zone_size = 0;
423
424	/*
425	 * If zone_range isn't specified, backward compatibility dictates it
426	 * should be made equal to zone_size.
427	 */
428	if (o->zone_size && !o->zone_range)
429		o->zone_range = o->zone_size;
430
431	/*
432	 * Reads can do overwrites, we always need to pre-create the file
433	 */
434	if (td_read(td) || td_rw(td))
435		o->overwrite = 1;
436
437	if (!o->min_bs[DDIR_READ])
438		o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
439	if (!o->max_bs[DDIR_READ])
440		o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
441	if (!o->min_bs[DDIR_WRITE])
442		o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
443	if (!o->max_bs[DDIR_WRITE])
444		o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
445	if (!o->min_bs[DDIR_TRIM])
446		o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
447	if (!o->max_bs[DDIR_TRIM])
448		o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
449
450
451	o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
452	o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
453
454	/*
455	 * For random IO, allow blockalign offset other than min_bs.
456	 */
457	if (!o->ba[DDIR_READ] || !td_random(td))
458		o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
459	if (!o->ba[DDIR_WRITE] || !td_random(td))
460		o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
461	if (!o->ba[DDIR_TRIM] || !td_random(td))
462		o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
463
464	if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
465	    o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
466	    o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
467	    !o->norandommap) {
468		log_err("fio: Any use of blockalign= turns off randommap\n");
469		o->norandommap = 1;
470		ret = warnings_fatal;
471	}
472
473	if (!o->file_size_high)
474		o->file_size_high = o->file_size_low;
475
476	if (o->norandommap && o->verify != VERIFY_NONE
477	    && !fixed_block_size(o))  {
478		log_err("fio: norandommap given for variable block sizes, "
479			"verify disabled\n");
480		o->verify = VERIFY_NONE;
481		ret = warnings_fatal;
482	}
483	if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
484		log_err("fio: bs_unaligned may not work with raw io\n");
485
486	/*
487	 * thinktime_spin must be less than thinktime
488	 */
489	if (o->thinktime_spin > o->thinktime)
490		o->thinktime_spin = o->thinktime;
491
492	/*
493	 * The low water mark cannot be bigger than the iodepth
494	 */
495	if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
496		/*
497		 * syslet work around - if the workload is sequential,
498		 * we want to let the queue drain all the way down to
499		 * avoid seeking between async threads
500		 */
501		if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
502			o->iodepth_low = 1;
503		else
504			o->iodepth_low = o->iodepth;
505	}
506
507	/*
508	 * If batch number isn't set, default to the same as iodepth
509	 */
510	if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
511		o->iodepth_batch = o->iodepth;
512
513	if (o->nr_files > td->files_index)
514		o->nr_files = td->files_index;
515
516	if (o->open_files > o->nr_files || !o->open_files)
517		o->open_files = o->nr_files;
518
519	if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
520	    (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
521	    ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
522	    (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
523		log_err("fio: rate and rate_iops are mutually exclusive\n");
524		ret = 1;
525	}
526	if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
527	    (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
528	    (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
529	    (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
530	    (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
531	    (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
532		log_err("fio: minimum rate exceeds rate\n");
533		ret = 1;
534	}
535
536	if (!o->timeout && o->time_based) {
537		log_err("fio: time_based requires a runtime/timeout setting\n");
538		o->time_based = 0;
539		ret = warnings_fatal;
540	}
541
542	if (o->fill_device && !o->size)
543		o->size = -1ULL;
544
545	if (o->verify != VERIFY_NONE) {
546		if (td_write(td) && o->do_verify && o->numjobs > 1) {
547			log_info("Multiple writers may overwrite blocks that "
548				"belong to other jobs. This can cause "
549				"verification failures.\n");
550			ret = warnings_fatal;
551		}
552
553		o->refill_buffers = 1;
554		if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
555		    !o->verify_interval)
556			o->verify_interval = o->min_bs[DDIR_WRITE];
557	}
558
559	if (o->pre_read) {
560		o->invalidate_cache = 0;
561		if (td->io_ops->flags & FIO_PIPEIO) {
562			log_info("fio: cannot pre-read files with an IO engine"
563				 " that isn't seekable. Pre-read disabled.\n");
564			ret = warnings_fatal;
565		}
566	}
567
568#ifndef FIO_HAVE_FDATASYNC
569	if (o->fdatasync_blocks) {
570		log_info("fio: this platform does not support fdatasync()"
571			 " falling back to using fsync().  Use the 'fsync'"
572			 " option instead of 'fdatasync' to get rid of"
573			 " this warning\n");
574		o->fsync_blocks = o->fdatasync_blocks;
575		o->fdatasync_blocks = 0;
576		ret = warnings_fatal;
577	}
578#endif
579
580#ifdef WIN32
581	/*
582	 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
583	 * so fail if we're passed those flags
584	 */
585	if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
586		log_err("fio: Windows does not support direct or non-buffered io with"
587				" the synchronous ioengines. Use the 'windowsaio' ioengine"
588				" with 'direct=1' and 'iodepth=1' instead.\n");
589		ret = 1;
590	}
591#endif
592
593	/*
594	 * For fully compressible data, just zero them at init time.
595	 * It's faster than repeatedly filling it.
596	 */
597	if (td->o.compress_percentage == 100) {
598		td->o.zero_buffers = 1;
599		td->o.compress_percentage = 0;
600	}
601
602	return ret;
603}
604
605/*
606 * This function leaks the buffer
607 */
608char *fio_uint_to_kmg(unsigned int val)
609{
610	char *buf = malloc(32);
611	char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
612	char *p = post;
613
614	do {
615		if (val & 1023)
616			break;
617
618		val >>= 10;
619		p++;
620	} while (*p);
621
622	snprintf(buf, 31, "%u%c", val, *p);
623	return buf;
624}
625
626/* External engines are specified by "external:name.o") */
627static const char *get_engine_name(const char *str)
628{
629	char *p = strstr(str, ":");
630
631	if (!p)
632		return str;
633
634	p++;
635	strip_blank_front(&p);
636	strip_blank_end(p);
637	return p;
638}
639
640static int exists_and_not_file(const char *filename)
641{
642	struct stat sb;
643
644	if (lstat(filename, &sb) == -1)
645		return 0;
646
647	/* \\.\ is the device namespace in Windows, where every file
648	 * is a device node */
649	if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
650		return 0;
651
652	return 1;
653}
654
655static void td_fill_rand_seeds_os(struct thread_data *td)
656{
657	os_random_seed(td->rand_seeds[0], &td->bsrange_state);
658	os_random_seed(td->rand_seeds[1], &td->verify_state);
659	os_random_seed(td->rand_seeds[2], &td->rwmix_state);
660
661	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
662		os_random_seed(td->rand_seeds[3], &td->next_file_state);
663
664	os_random_seed(td->rand_seeds[5], &td->file_size_state);
665	os_random_seed(td->rand_seeds[6], &td->trim_state);
666
667	if (!td_random(td))
668		return;
669
670	if (td->o.rand_repeatable)
671		td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
672
673	os_random_seed(td->rand_seeds[4], &td->random_state);
674}
675
676static void td_fill_rand_seeds_internal(struct thread_data *td)
677{
678	init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
679	init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
680	init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
681
682	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
683		init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
684
685	init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
686	init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
687
688	if (!td_random(td))
689		return;
690
691	if (td->o.rand_repeatable)
692		td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
693
694	init_rand_seed(&td->__random_state, td->rand_seeds[4]);
695}
696
697void td_fill_rand_seeds(struct thread_data *td)
698{
699	if (td->o.use_os_rand)
700		td_fill_rand_seeds_os(td);
701	else
702		td_fill_rand_seeds_internal(td);
703
704	init_rand_seed(&td->buf_state, td->rand_seeds[7]);
705}
706
707
708/*
709 * Initializes the ioengine configured for a job, if it has not been done so
710 * already.
711 */
712int ioengine_load(struct thread_data *td)
713{
714	const char *engine;
715
716	/*
717	 * Engine has already been loaded.
718	 */
719	if (td->io_ops)
720		return 0;
721
722	engine = get_engine_name(td->o.ioengine);
723	td->io_ops = load_ioengine(td, engine);
724	if (!td->io_ops) {
725		log_err("fio: failed to load engine %s\n", engine);
726		return 1;
727	}
728
729	if (td->io_ops->option_struct_size && td->io_ops->options) {
730		/*
731		 * In cases where td->eo is set, clone it for a child thread.
732		 * This requires that the parent thread has the same ioengine,
733		 * but that requirement must be enforced by the code which
734		 * cloned the thread.
735		 */
736		void *origeo = td->eo;
737		/*
738		 * Otherwise use the default thread options.
739		 */
740		if (!origeo && td != &def_thread && def_thread.eo &&
741		    def_thread.io_ops->options == td->io_ops->options)
742			origeo = def_thread.eo;
743
744		options_init(td->io_ops->options);
745		td->eo = malloc(td->io_ops->option_struct_size);
746		/*
747		 * Use the default thread as an option template if this uses the
748		 * same options structure and there are non-default options
749		 * used.
750		 */
751		if (origeo) {
752			memcpy(td->eo, origeo, td->io_ops->option_struct_size);
753			options_mem_dupe(td->eo, td->io_ops->options);
754		} else {
755			memset(td->eo, 0, td->io_ops->option_struct_size);
756			fill_default_options(td->eo, td->io_ops->options);
757		}
758		*(struct thread_data **)td->eo = td;
759	}
760
761	return 0;
762}
763
764/*
765 * Adds a job to the list of things todo. Sanitizes the various options
766 * to make sure we don't have conflicts, and initializes various
767 * members of td.
768 */
769static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
770		   int recursed, int client_type)
771{
772	unsigned int i;
773	char fname[PATH_MAX];
774	int numjobs, file_alloced;
775
776	/*
777	 * the def_thread is just for options, it's not a real job
778	 */
779	if (td == &def_thread)
780		return 0;
781
782	/*
783	 * if we are just dumping the output command line, don't add the job
784	 */
785	if (dump_cmdline) {
786		put_job(td);
787		return 0;
788	}
789
790	td->client_type = client_type;
791
792	if (profile_td_init(td))
793		goto err;
794
795	if (ioengine_load(td))
796		goto err;
797
798	if (td->o.odirect)
799		td->io_ops->flags |= FIO_RAWIO;
800
801	file_alloced = 0;
802	if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
803		file_alloced = 1;
804
805		if (td->o.nr_files == 1 && exists_and_not_file(jobname))
806			add_file(td, jobname);
807		else {
808			for (i = 0; i < td->o.nr_files; i++) {
809				sprintf(fname, "%s.%d.%d", jobname,
810							td->thread_number, i);
811				add_file(td, fname);
812			}
813		}
814	}
815
816	if (fixup_options(td))
817		goto err;
818
819	flow_init_job(td);
820
821	/*
822	 * IO engines only need this for option callbacks, and the address may
823	 * change in subprocesses.
824	 */
825	if (td->eo)
826		*(struct thread_data **)td->eo = NULL;
827
828	if (td->io_ops->flags & FIO_DISKLESSIO) {
829		struct fio_file *f;
830
831		for_each_file(td, f, i)
832			f->real_file_size = -1ULL;
833	}
834
835	td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
836
837	td->ts.clat_percentiles = td->o.clat_percentiles;
838	if (td->o.overwrite_plist)
839		memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
840	else
841		memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
842
843	for (i = 0; i < DDIR_RWDIR_CNT; i++) {
844		td->ts.clat_stat[i].min_val = ULONG_MAX;
845		td->ts.slat_stat[i].min_val = ULONG_MAX;
846		td->ts.lat_stat[i].min_val = ULONG_MAX;
847		td->ts.bw_stat[i].min_val = ULONG_MAX;
848	}
849	td->ddir_seq_nr = td->o.ddir_seq_nr;
850
851	if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
852		prev_group_jobs = 0;
853		groupid++;
854	}
855
856	td->groupid = groupid;
857	prev_group_jobs++;
858
859	if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) {
860		td_verror(td, errno, "init_random_state");
861		goto err;
862	}
863
864	if (setup_rate(td))
865		goto err;
866
867	if (td->o.lat_log_file) {
868		setup_log(&td->lat_log, td->o.log_avg_msec, IO_LOG_TYPE_LAT);
869		setup_log(&td->slat_log, td->o.log_avg_msec, IO_LOG_TYPE_SLAT);
870		setup_log(&td->clat_log, td->o.log_avg_msec, IO_LOG_TYPE_CLAT);
871	}
872	if (td->o.bw_log_file)
873		setup_log(&td->bw_log, td->o.log_avg_msec, IO_LOG_TYPE_BW);
874	if (td->o.iops_log_file)
875		setup_log(&td->iops_log, td->o.log_avg_msec, IO_LOG_TYPE_IOPS);
876
877	if (!td->o.name)
878		td->o.name = strdup(jobname);
879
880	if (output_format == FIO_OUTPUT_NORMAL) {
881		if (!job_add_num) {
882			if (is_backend && !recursed)
883				fio_server_send_add_job(td);
884
885			if (!(td->io_ops->flags & FIO_NOIO)) {
886				char *c1, *c2, *c3, *c4, *c5, *c6;
887
888				c1 = fio_uint_to_kmg(td->o.min_bs[DDIR_READ]);
889				c2 = fio_uint_to_kmg(td->o.max_bs[DDIR_READ]);
890				c3 = fio_uint_to_kmg(td->o.min_bs[DDIR_WRITE]);
891				c4 = fio_uint_to_kmg(td->o.max_bs[DDIR_WRITE]);
892				c5 = fio_uint_to_kmg(td->o.min_bs[DDIR_TRIM]);
893				c6 = fio_uint_to_kmg(td->o.max_bs[DDIR_TRIM]);
894
895				log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s,"
896					 " ioengine=%s, iodepth=%u\n",
897						td->o.name, td->groupid,
898						ddir_str(td->o.td_ddir),
899						c1, c2, c3, c4, c5, c6,
900						td->io_ops->name,
901						td->o.iodepth);
902
903				free(c1);
904				free(c2);
905				free(c3);
906				free(c4);
907				free(c5);
908				free(c6);
909			}
910		} else if (job_add_num == 1)
911			log_info("...\n");
912	}
913
914	/*
915	 * recurse add identical jobs, clear numjobs and stonewall options
916	 * as they don't apply to sub-jobs
917	 */
918	numjobs = td->o.numjobs;
919	while (--numjobs) {
920		struct thread_data *td_new = get_new_job(0, td, 1);
921
922		if (!td_new)
923			goto err;
924
925		td_new->o.numjobs = 1;
926		td_new->o.stonewall = 0;
927		td_new->o.new_group = 0;
928
929		if (file_alloced) {
930			td_new->o.filename = NULL;
931			td_new->files_index = 0;
932			td_new->files_size = 0;
933			td_new->files = NULL;
934		}
935
936		job_add_num = numjobs - 1;
937
938		if (add_job(td_new, jobname, job_add_num, 1, client_type))
939			goto err;
940	}
941
942	return 0;
943err:
944	put_job(td);
945	return -1;
946}
947
948/*
949 * Parse as if 'o' was a command line
950 */
951void add_job_opts(const char **o, int client_type)
952{
953	struct thread_data *td, *td_parent;
954	int i, in_global = 1;
955	char jobname[32];
956
957	i = 0;
958	td_parent = td = NULL;
959	while (o[i]) {
960		if (!strncmp(o[i], "name", 4)) {
961			in_global = 0;
962			if (td)
963				add_job(td, jobname, 0, 0, client_type);
964			td = NULL;
965			sprintf(jobname, "%s", o[i] + 5);
966		}
967		if (in_global && !td_parent)
968			td_parent = get_new_job(1, &def_thread, 0);
969		else if (!in_global && !td) {
970			if (!td_parent)
971				td_parent = &def_thread;
972			td = get_new_job(0, td_parent, 0);
973		}
974		if (in_global)
975			fio_options_parse(td_parent, (char **) &o[i], 1);
976		else
977			fio_options_parse(td, (char **) &o[i], 1);
978		i++;
979	}
980
981	if (td)
982		add_job(td, jobname, 0, 0, client_type);
983}
984
985static int skip_this_section(const char *name)
986{
987	int i;
988
989	if (!nr_job_sections)
990		return 0;
991	if (!strncmp(name, "global", 6))
992		return 0;
993
994	for (i = 0; i < nr_job_sections; i++)
995		if (!strcmp(job_sections[i], name))
996			return 0;
997
998	return 1;
999}
1000
1001static int is_empty_or_comment(char *line)
1002{
1003	unsigned int i;
1004
1005	for (i = 0; i < strlen(line); i++) {
1006		if (line[i] == ';')
1007			return 1;
1008		if (line[i] == '#')
1009			return 1;
1010		if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1011			return 0;
1012	}
1013
1014	return 1;
1015}
1016
1017/*
1018 * This is our [ini] type file parser.
1019 */
1020int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1021{
1022	unsigned int global;
1023	struct thread_data *td;
1024	char *string, *name;
1025	FILE *f;
1026	char *p;
1027	int ret = 0, stonewall;
1028	int first_sect = 1;
1029	int skip_fgets = 0;
1030	int inside_skip = 0;
1031	char **opts;
1032	int i, alloc_opts, num_opts;
1033
1034	if (is_buf)
1035		f = NULL;
1036	else {
1037		if (!strcmp(file, "-"))
1038			f = stdin;
1039		else
1040			f = fopen(file, "r");
1041
1042		if (!f) {
1043			perror("fopen job file");
1044			return 1;
1045		}
1046	}
1047
1048	string = malloc(4096);
1049
1050	/*
1051	 * it's really 256 + small bit, 280 should suffice
1052	 */
1053	name = malloc(280);
1054	memset(name, 0, 280);
1055
1056	alloc_opts = 8;
1057	opts = malloc(sizeof(char *) * alloc_opts);
1058	num_opts = 0;
1059
1060	stonewall = stonewall_flag;
1061	do {
1062		/*
1063		 * if skip_fgets is set, we already have loaded a line we
1064		 * haven't handled.
1065		 */
1066		if (!skip_fgets) {
1067			if (is_buf)
1068				p = strsep(&file, "\n");
1069			else
1070				p = fgets(string, 4096, f);
1071			if (!p)
1072				break;
1073		}
1074
1075		skip_fgets = 0;
1076		strip_blank_front(&p);
1077		strip_blank_end(p);
1078
1079		if (is_empty_or_comment(p))
1080			continue;
1081		if (sscanf(p, "[%255[^\n]]", name) != 1) {
1082			if (inside_skip)
1083				continue;
1084			log_err("fio: option <%s> outside of [] job section\n",
1085									p);
1086			break;
1087		}
1088
1089		name[strlen(name) - 1] = '\0';
1090
1091		if (skip_this_section(name)) {
1092			inside_skip = 1;
1093			continue;
1094		} else
1095			inside_skip = 0;
1096
1097		global = !strncmp(name, "global", 6);
1098
1099		if (dump_cmdline) {
1100			if (first_sect)
1101				log_info("fio ");
1102			if (!global)
1103				log_info("--name=%s ", name);
1104			first_sect = 0;
1105		}
1106
1107		td = get_new_job(global, &def_thread, 0);
1108		if (!td) {
1109			ret = 1;
1110			break;
1111		}
1112
1113		/*
1114		 * Seperate multiple job files by a stonewall
1115		 */
1116		if (!global && stonewall) {
1117			td->o.stonewall = stonewall;
1118			stonewall = 0;
1119		}
1120
1121		num_opts = 0;
1122		memset(opts, 0, alloc_opts * sizeof(char *));
1123
1124		while (1) {
1125			if (is_buf)
1126				p = strsep(&file, "\n");
1127			else
1128				p = fgets(string, 4096, f);
1129			if (!p)
1130				break;
1131
1132			if (is_empty_or_comment(p))
1133				continue;
1134
1135			strip_blank_front(&p);
1136
1137			/*
1138			 * new section, break out and make sure we don't
1139			 * fgets() a new line at the top.
1140			 */
1141			if (p[0] == '[') {
1142				skip_fgets = 1;
1143				break;
1144			}
1145
1146			strip_blank_end(p);
1147
1148			if (num_opts == alloc_opts) {
1149				alloc_opts <<= 1;
1150				opts = realloc(opts,
1151						alloc_opts * sizeof(char *));
1152			}
1153
1154			opts[num_opts] = strdup(p);
1155			num_opts++;
1156		}
1157
1158		ret = fio_options_parse(td, opts, num_opts);
1159		if (!ret) {
1160			if (dump_cmdline)
1161				for (i = 0; i < num_opts; i++)
1162					log_info("--%s ", opts[i]);
1163
1164			ret = add_job(td, name, 0, 0, type);
1165		} else {
1166			log_err("fio: job %s dropped\n", name);
1167			put_job(td);
1168		}
1169
1170		for (i = 0; i < num_opts; i++)
1171			free(opts[i]);
1172		num_opts = 0;
1173	} while (!ret);
1174
1175	if (dump_cmdline)
1176		log_info("\n");
1177
1178	i = 0;
1179	while (i < nr_job_sections) {
1180		free(job_sections[i]);
1181		i++;
1182	}
1183
1184	for (i = 0; i < num_opts; i++)
1185		free(opts[i]);
1186
1187	free(string);
1188	free(name);
1189	free(opts);
1190	if (!is_buf && f != stdin)
1191		fclose(f);
1192	return ret;
1193}
1194
1195static int fill_def_thread(void)
1196{
1197	memset(&def_thread, 0, sizeof(def_thread));
1198
1199	fio_getaffinity(getpid(), &def_thread.o.cpumask);
1200	def_thread.o.timeout = def_timeout;
1201	def_thread.o.error_dump = 1;
1202	/*
1203	 * fill default options
1204	 */
1205	fio_fill_default_options(&def_thread);
1206	return 0;
1207}
1208
1209static void usage(const char *name)
1210{
1211	printf("%s\n", fio_version_string);
1212	printf("%s [options] [job options] <job file(s)>\n", name);
1213	printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1214		"\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1215		"\t\t\tdiskutil,job,mutex,profile,time,net\n");
1216	printf("  --output\t\tWrite output to file\n");
1217	printf("  --runtime\t\tRuntime in seconds\n");
1218	printf("  --latency-log\t\tGenerate per-job latency logs\n");
1219	printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1220	printf("  --minimal\t\tMinimal (terse) output\n");
1221	printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1222	printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1223	printf("  --version\t\tPrint version info and exit\n");
1224	printf("  --help\t\tPrint this page\n");
1225	printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1226		" them\n");
1227	printf("  --enghelp=engine\tPrint ioengine help, or list"
1228		" available ioengines\n");
1229	printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1230		" cmd\n");
1231	printf("  --showcmd\t\tTurn a job file into command line options\n");
1232	printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1233	printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1234	printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1235		" writes\n");
1236	printf("  --section=name\tOnly run specified section in job file\n");
1237	printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1238		" (def 1024)\n");
1239	printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1240	printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1241	printf("  --server=args\t\tStart a backend fio server\n");
1242	printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1243	printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1244	printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1245	printf("\n                 Jens Axboe <jaxboe@fusionio.com>\n");
1246}
1247
1248#ifdef FIO_INC_DEBUG
1249struct debug_level debug_levels[] = {
1250	{ .name = "process",
1251	  .help = "Process creation/exit logging",
1252	  .shift = FD_PROCESS,
1253	},
1254	{ .name = "file",
1255	  .help = "File related action logging",
1256	  .shift = FD_FILE,
1257	},
1258	{ .name = "io",
1259	  .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1260	  .shift = FD_IO,
1261	},
1262	{ .name = "mem",
1263	  .help = "Memory allocation/freeing logging",
1264	  .shift = FD_MEM,
1265	},
1266	{ .name = "blktrace",
1267	  .help = "blktrace action logging",
1268	  .shift = FD_BLKTRACE,
1269	},
1270	{ .name = "verify",
1271	  .help = "IO verification action logging",
1272	  .shift = FD_VERIFY,
1273	},
1274	{ .name = "random",
1275	  .help = "Random generation logging",
1276	  .shift = FD_RANDOM,
1277	},
1278	{ .name = "parse",
1279	  .help = "Parser logging",
1280	  .shift = FD_PARSE,
1281	},
1282	{ .name = "diskutil",
1283	  .help = "Disk utility logging actions",
1284	  .shift = FD_DISKUTIL,
1285	},
1286	{ .name = "job",
1287	  .help = "Logging related to creating/destroying jobs",
1288	  .shift = FD_JOB,
1289	},
1290	{ .name = "mutex",
1291	  .help = "Mutex logging",
1292	  .shift = FD_MUTEX
1293	},
1294	{ .name	= "profile",
1295	  .help = "Logging related to profiles",
1296	  .shift = FD_PROFILE,
1297	},
1298	{ .name = "time",
1299	  .help = "Logging related to time keeping functions",
1300	  .shift = FD_TIME,
1301	},
1302	{ .name = "net",
1303	  .help = "Network logging",
1304	  .shift = FD_NET,
1305	},
1306	{ .name = NULL, },
1307};
1308
1309static int set_debug(const char *string)
1310{
1311	struct debug_level *dl;
1312	char *p = (char *) string;
1313	char *opt;
1314	int i;
1315
1316	if (!strcmp(string, "?") || !strcmp(string, "help")) {
1317		log_info("fio: dumping debug options:");
1318		for (i = 0; debug_levels[i].name; i++) {
1319			dl = &debug_levels[i];
1320			log_info("%s,", dl->name);
1321		}
1322		log_info("all\n");
1323		return 1;
1324	}
1325
1326	while ((opt = strsep(&p, ",")) != NULL) {
1327		int found = 0;
1328
1329		if (!strncmp(opt, "all", 3)) {
1330			log_info("fio: set all debug options\n");
1331			fio_debug = ~0UL;
1332			continue;
1333		}
1334
1335		for (i = 0; debug_levels[i].name; i++) {
1336			dl = &debug_levels[i];
1337			found = !strncmp(opt, dl->name, strlen(dl->name));
1338			if (!found)
1339				continue;
1340
1341			if (dl->shift == FD_JOB) {
1342				opt = strchr(opt, ':');
1343				if (!opt) {
1344					log_err("fio: missing job number\n");
1345					break;
1346				}
1347				opt++;
1348				fio_debug_jobno = atoi(opt);
1349				log_info("fio: set debug jobno %d\n",
1350							fio_debug_jobno);
1351			} else {
1352				log_info("fio: set debug option %s\n", opt);
1353				fio_debug |= (1UL << dl->shift);
1354			}
1355			break;
1356		}
1357
1358		if (!found)
1359			log_err("fio: debug mask %s not found\n", opt);
1360	}
1361	return 0;
1362}
1363#else
1364static int set_debug(const char *string)
1365{
1366	log_err("fio: debug tracing not included in build\n");
1367	return 1;
1368}
1369#endif
1370
1371static void fio_options_fill_optstring(void)
1372{
1373	char *ostr = cmd_optstr;
1374	int i, c;
1375
1376	c = i = 0;
1377	while (l_opts[i].name) {
1378		ostr[c++] = l_opts[i].val;
1379		if (l_opts[i].has_arg == required_argument)
1380			ostr[c++] = ':';
1381		else if (l_opts[i].has_arg == optional_argument) {
1382			ostr[c++] = ':';
1383			ostr[c++] = ':';
1384		}
1385		i++;
1386	}
1387	ostr[c] = '\0';
1388}
1389
1390static int client_flag_set(char c)
1391{
1392	int i;
1393
1394	i = 0;
1395	while (l_opts[i].name) {
1396		int val = l_opts[i].val;
1397
1398		if (c == (val & 0xff))
1399			return (val & FIO_CLIENT_FLAG);
1400
1401		i++;
1402	}
1403
1404	return 0;
1405}
1406
1407void parse_cmd_client(void *client, char *opt)
1408{
1409	fio_client_add_cmd_option(client, opt);
1410}
1411
1412int parse_cmd_line(int argc, char *argv[], int client_type)
1413{
1414	struct thread_data *td = NULL;
1415	int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1416	char *ostr = cmd_optstr;
1417	void *pid_file = NULL;
1418	void *cur_client = NULL;
1419	int backend = 0;
1420
1421	/*
1422	 * Reset optind handling, since we may call this multiple times
1423	 * for the backend.
1424	 */
1425	optind = 1;
1426
1427	while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1428		did_arg = 1;
1429
1430		if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1431			parse_cmd_client(cur_client, argv[optind - 1]);
1432			c &= ~FIO_CLIENT_FLAG;
1433		}
1434
1435		switch (c) {
1436		case 'a':
1437			smalloc_pool_size = atoi(optarg);
1438			break;
1439		case 't':
1440			def_timeout = atoi(optarg);
1441			break;
1442		case 'l':
1443			write_lat_log = 1;
1444			break;
1445		case 'b':
1446			write_bw_log = 1;
1447			break;
1448		case 'o':
1449			f_out = fopen(optarg, "w+");
1450			if (!f_out) {
1451				perror("fopen output");
1452				exit(1);
1453			}
1454			f_err = f_out;
1455			break;
1456		case 'm':
1457			output_format = FIO_OUTPUT_TERSE;
1458			break;
1459		case 'F':
1460			if (!strcmp(optarg, "minimal") ||
1461			    !strcmp(optarg, "terse") ||
1462			    !strcmp(optarg, "csv"))
1463				output_format = FIO_OUTPUT_TERSE;
1464			else if (!strcmp(optarg, "json"))
1465				output_format = FIO_OUTPUT_JSON;
1466			else
1467				output_format = FIO_OUTPUT_NORMAL;
1468			break;
1469		case 'h':
1470			if (!cur_client) {
1471				usage(argv[0]);
1472				do_exit++;
1473			}
1474			break;
1475		case 'c':
1476			if (!cur_client) {
1477				fio_show_option_help(optarg);
1478				do_exit++;
1479			}
1480			break;
1481		case 'i':
1482			if (!cur_client) {
1483				fio_show_ioengine_help(optarg);
1484				do_exit++;
1485			}
1486			break;
1487		case 's':
1488			dump_cmdline = 1;
1489			break;
1490		case 'r':
1491			read_only = 1;
1492			break;
1493		case 'v':
1494			if (!cur_client) {
1495				log_info("%s\n", fio_version_string);
1496				do_exit++;
1497			}
1498			break;
1499		case 'V':
1500			terse_version = atoi(optarg);
1501			if (!(terse_version == 2 || terse_version == 3) ||
1502			     (terse_version == 4)) {
1503				log_err("fio: bad terse version format\n");
1504				exit_val = 1;
1505				do_exit++;
1506			}
1507			break;
1508		case 'e':
1509			if (!strcmp("always", optarg))
1510				eta_print = FIO_ETA_ALWAYS;
1511			else if (!strcmp("never", optarg))
1512				eta_print = FIO_ETA_NEVER;
1513			break;
1514		case 'd':
1515			if (set_debug(optarg))
1516				do_exit++;
1517			break;
1518		case 'x': {
1519			size_t new_size;
1520
1521			if (!strcmp(optarg, "global")) {
1522				log_err("fio: can't use global as only "
1523					"section\n");
1524				do_exit++;
1525				exit_val = 1;
1526				break;
1527			}
1528			new_size = (nr_job_sections + 1) * sizeof(char *);
1529			job_sections = realloc(job_sections, new_size);
1530			job_sections[nr_job_sections] = strdup(optarg);
1531			nr_job_sections++;
1532			break;
1533			}
1534		case 'p':
1535			exec_profile = strdup(optarg);
1536			break;
1537		case FIO_GETOPT_JOB: {
1538			const char *opt = l_opts[lidx].name;
1539			char *val = optarg;
1540
1541			if (!strncmp(opt, "name", 4) && td) {
1542				ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1543				if (ret)
1544					return 0;
1545				td = NULL;
1546			}
1547			if (!td) {
1548				int is_section = !strncmp(opt, "name", 4);
1549				int global = 0;
1550
1551				if (!is_section || !strncmp(val, "global", 6))
1552					global = 1;
1553
1554				if (is_section && skip_this_section(val))
1555					continue;
1556
1557				td = get_new_job(global, &def_thread, 1);
1558				if (!td || ioengine_load(td))
1559					return 0;
1560				fio_options_set_ioengine_opts(l_opts, td);
1561			}
1562
1563			ret = fio_cmd_option_parse(td, opt, val);
1564
1565			if (!ret && !strcmp(opt, "ioengine")) {
1566				free_ioengine(td);
1567				if (ioengine_load(td))
1568					return 0;
1569				fio_options_set_ioengine_opts(l_opts, td);
1570			}
1571			break;
1572		}
1573		case FIO_GETOPT_IOENGINE: {
1574			const char *opt = l_opts[lidx].name;
1575			char *val = optarg;
1576			opt = l_opts[lidx].name;
1577			val = optarg;
1578			ret = fio_cmd_ioengine_option_parse(td, opt, val);
1579			break;
1580		}
1581		case 'w':
1582			warnings_fatal = 1;
1583			break;
1584		case 'j':
1585			max_jobs = atoi(optarg);
1586			if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1587				log_err("fio: invalid max jobs: %d\n", max_jobs);
1588				do_exit++;
1589				exit_val = 1;
1590			}
1591			break;
1592		case 'S':
1593			if (nr_clients) {
1594				log_err("fio: can't be both client and server\n");
1595				do_exit++;
1596				exit_val = 1;
1597				break;
1598			}
1599			if (optarg)
1600				fio_server_set_arg(optarg);
1601			is_backend = 1;
1602			backend = 1;
1603			break;
1604		case 'D':
1605			pid_file = strdup(optarg);
1606			break;
1607		case 'C':
1608			if (is_backend) {
1609				log_err("fio: can't be both client and server\n");
1610				do_exit++;
1611				exit_val = 1;
1612				break;
1613			}
1614			if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
1615				log_err("fio: failed adding client %s\n", optarg);
1616				do_exit++;
1617				exit_val = 1;
1618				break;
1619			}
1620			/*
1621			 * If the next argument exists and isn't an option,
1622			 * assume it's a job file for this client only.
1623			 */
1624			while (optind < argc) {
1625				if (!strncmp(argv[optind], "--", 2) ||
1626				    !strncmp(argv[optind], "-", 1))
1627					break;
1628
1629				fio_client_add_ini_file(cur_client, argv[optind]);
1630				optind++;
1631			}
1632			break;
1633		default:
1634			do_exit++;
1635			exit_val = 1;
1636			break;
1637		}
1638		if (do_exit)
1639			break;
1640	}
1641
1642	if (do_exit) {
1643		if (exit_val && !(is_backend || nr_clients))
1644			exit(exit_val);
1645	}
1646
1647	if (nr_clients && fio_clients_connect()) {
1648		do_exit++;
1649		exit_val = 1;
1650		return -1;
1651	}
1652
1653	if (is_backend && backend)
1654		return fio_start_server(pid_file);
1655
1656	if (td) {
1657		if (!ret)
1658			ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1659	}
1660
1661	while (!ret && optind < argc) {
1662		ini_idx++;
1663		ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1664		ini_file[ini_idx - 1] = strdup(argv[optind]);
1665		optind++;
1666	}
1667
1668	return ini_idx;
1669}
1670
1671int fio_init_options(void)
1672{
1673	f_out = stdout;
1674	f_err = stderr;
1675
1676	fio_options_fill_optstring();
1677	fio_options_dup_and_init(l_opts);
1678
1679	atexit(free_shm);
1680
1681	if (fill_def_thread())
1682		return 1;
1683
1684	return 0;
1685}
1686
1687extern int fio_check_options(struct thread_options *);
1688
1689int parse_options(int argc, char *argv[])
1690{
1691	const int type = FIO_CLIENT_TYPE_CLI;
1692	int job_files, i;
1693
1694	if (fio_init_options())
1695		return 1;
1696	if (fio_test_cconv(&def_thread.o))
1697		log_err("fio: failed internal cconv test\n");
1698
1699	job_files = parse_cmd_line(argc, argv, type);
1700
1701	if (job_files > 0) {
1702		for (i = 0; i < job_files; i++) {
1703			if (fill_def_thread())
1704				return 1;
1705			if (nr_clients) {
1706				if (fio_clients_send_ini(ini_file[i]))
1707					return 1;
1708				free(ini_file[i]);
1709			} else if (!is_backend) {
1710				if (parse_jobs_ini(ini_file[i], 0, i, type))
1711					return 1;
1712				free(ini_file[i]);
1713			}
1714		}
1715	} else if (nr_clients) {
1716		if (fill_def_thread())
1717			return 1;
1718		if (fio_clients_send_ini(NULL))
1719			return 1;
1720	}
1721
1722	free(ini_file);
1723	fio_options_free(&def_thread);
1724
1725	if (!thread_number) {
1726		if (dump_cmdline)
1727			return 0;
1728		if (exec_profile)
1729			return 0;
1730		if (is_backend || nr_clients)
1731			return 0;
1732		if (did_arg)
1733			return 0;
1734
1735		log_err("No jobs(s) defined\n\n");
1736
1737		if (!did_arg) {
1738			usage(argv[0]);
1739			return 1;
1740		}
1741
1742		return 0;
1743	}
1744
1745	if (def_thread.o.gtod_offload) {
1746		fio_gtod_init();
1747		fio_gtod_offload = 1;
1748		fio_gtod_cpu = def_thread.o.gtod_cpu;
1749	}
1750
1751	if (output_format == FIO_OUTPUT_NORMAL)
1752		log_info("%s\n", fio_version_string);
1753
1754	return 0;
1755}
1756
1757void options_default_fill(struct thread_options *o)
1758{
1759	memcpy(o, &def_thread.o, sizeof(*o));
1760}
1761