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client: drain text output when exiting
[fio.git] / client.c
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1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <limits.h>
5#include <errno.h>
6#include <fcntl.h>
7#include <sys/poll.h>
8#include <sys/types.h>
9#include <sys/stat.h>
10#include <sys/wait.h>
11#include <sys/socket.h>
12#include <sys/un.h>
13#include <netinet/in.h>
14#include <arpa/inet.h>
15#include <netdb.h>
16#include <signal.h>
17#ifdef CONFIG_ZLIB
18#include <zlib.h>
19#endif
20
21#include "fio.h"
22#include "client.h"
23#include "server.h"
24#include "flist.h"
25#include "hash.h"
26#include "verify.h"
27
28static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
29static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
30static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
31static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
32static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
33static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
34static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
35
36static void convert_text(struct fio_net_cmd *cmd);
37
38struct client_ops fio_client_ops = {
39 .text = handle_text,
40 .disk_util = handle_du,
41 .thread_status = handle_ts,
42 .group_stats = handle_gs,
43 .stop = handle_stop,
44 .start = handle_start,
45 .eta = display_thread_status,
46 .probe = handle_probe,
47 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
48 .client_type = FIO_CLIENT_TYPE_CLI,
49};
50
51static struct timeval eta_tv;
52
53static FLIST_HEAD(client_list);
54static FLIST_HEAD(eta_list);
55
56static FLIST_HEAD(arg_list);
57
58struct thread_stat client_ts;
59struct group_run_stats client_gs;
60int sum_stat_clients;
61
62static int sum_stat_nr;
63static struct json_object *root = NULL;
64static struct json_object *job_opt_object = NULL;
65static struct json_array *clients_array = NULL;
66static struct json_array *du_array = NULL;
67
68static int error_clients;
69
70#define FIO_CLIENT_HASH_BITS 7
71#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
72#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
73static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
74
75static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *, bool *);
76
77static void fio_client_add_hash(struct fio_client *client)
78{
79 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
80
81 bucket &= FIO_CLIENT_HASH_MASK;
82 flist_add(&client->hash_list, &client_hash[bucket]);
83}
84
85static void fio_client_remove_hash(struct fio_client *client)
86{
87 if (!flist_empty(&client->hash_list))
88 flist_del_init(&client->hash_list);
89}
90
91static void fio_init fio_client_hash_init(void)
92{
93 int i;
94
95 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
96 INIT_FLIST_HEAD(&client_hash[i]);
97}
98
99static int read_data(int fd, void *data, size_t size)
100{
101 ssize_t ret;
102
103 while (size) {
104 ret = read(fd, data, size);
105 if (ret < 0) {
106 if (errno == EAGAIN || errno == EINTR)
107 continue;
108 break;
109 } else if (!ret)
110 break;
111 else {
112 data += ret;
113 size -= ret;
114 }
115 }
116
117 if (size)
118 return EAGAIN;
119
120 return 0;
121}
122
123static void fio_client_json_init(void)
124{
125 char time_buf[32];
126 time_t time_p;
127
128 if (!(output_format & FIO_OUTPUT_JSON))
129 return;
130
131 time(&time_p);
132 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
133 time_buf[strlen(time_buf) - 1] = '\0';
134
135 root = json_create_object();
136 json_object_add_value_string(root, "fio version", fio_version_string);
137 json_object_add_value_int(root, "timestamp", time_p);
138 json_object_add_value_string(root, "time", time_buf);
139
140 job_opt_object = json_create_object();
141 json_object_add_value_object(root, "global options", job_opt_object);
142 clients_array = json_create_array();
143 json_object_add_value_array(root, "client_stats", clients_array);
144 du_array = json_create_array();
145 json_object_add_value_array(root, "disk_util", du_array);
146}
147
148static void fio_client_json_fini(void)
149{
150 if (!(output_format & FIO_OUTPUT_JSON))
151 return;
152
153 log_info("\n");
154 json_print_object(root, NULL);
155 log_info("\n");
156 json_free_object(root);
157 root = NULL;
158 clients_array = NULL;
159 du_array = NULL;
160}
161
162static struct fio_client *find_client_by_fd(int fd)
163{
164 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
165 struct fio_client *client;
166 struct flist_head *entry;
167
168 flist_for_each(entry, &client_hash[bucket]) {
169 client = flist_entry(entry, struct fio_client, hash_list);
170
171 if (client->fd == fd) {
172 client->refs++;
173 return client;
174 }
175 }
176
177 return NULL;
178}
179
180void fio_put_client(struct fio_client *client)
181{
182 if (--client->refs)
183 return;
184
185 free(client->hostname);
186 if (client->argv)
187 free(client->argv);
188 if (client->name)
189 free(client->name);
190 while (client->nr_files) {
191 struct client_file *cf = &client->files[--client->nr_files];
192
193 free(cf->file);
194 }
195 if (client->files)
196 free(client->files);
197 if (client->opt_lists)
198 free(client->opt_lists);
199
200 if (!client->did_stat)
201 sum_stat_clients--;
202
203 if (client->error)
204 error_clients++;
205
206 free(client);
207}
208
209static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
210{
211 if (!--eta->pending) {
212 eta_fn(&eta->eta);
213 free(eta);
214 return 0;
215 }
216
217 return 1;
218}
219
220static void fio_drain_client_text(struct fio_client *client)
221{
222 do {
223 struct fio_net_cmd *cmd;
224
225 cmd = fio_net_recv_cmd(client->fd, false);
226 if (!cmd)
227 break;
228
229 if (cmd->opcode != FIO_NET_CMD_TEXT) {
230 free(cmd);
231 continue;
232 }
233
234 convert_text(cmd);
235 client->ops->text(client, cmd);
236 } while (1);
237}
238
239static void remove_client(struct fio_client *client)
240{
241 assert(client->refs);
242
243 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
244
245 fio_drain_client_text(client);
246
247 if (!flist_empty(&client->list))
248 flist_del_init(&client->list);
249
250 fio_client_remove_hash(client);
251
252 if (!flist_empty(&client->eta_list)) {
253 flist_del_init(&client->eta_list);
254 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
255 }
256
257 close(client->fd);
258 client->fd = -1;
259
260 if (client->ops->removed)
261 client->ops->removed(client);
262
263 nr_clients--;
264 fio_put_client(client);
265}
266
267struct fio_client *fio_get_client(struct fio_client *client)
268{
269 client->refs++;
270 return client;
271}
272
273static void __fio_client_add_cmd_option(struct fio_client *client,
274 const char *opt)
275{
276 int index;
277
278 index = client->argc++;
279 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
280 client->argv[index] = strdup(opt);
281 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
282}
283
284void fio_client_add_cmd_option(void *cookie, const char *opt)
285{
286 struct fio_client *client = cookie;
287 struct flist_head *entry;
288
289 if (!client || !opt)
290 return;
291
292 __fio_client_add_cmd_option(client, opt);
293
294 /*
295 * Duplicate arguments to shared client group
296 */
297 flist_for_each(entry, &arg_list) {
298 client = flist_entry(entry, struct fio_client, arg_list);
299
300 __fio_client_add_cmd_option(client, opt);
301 }
302}
303
304struct fio_client *fio_client_add_explicit(struct client_ops *ops,
305 const char *hostname, int type,
306 int port)
307{
308 struct fio_client *client;
309
310 client = malloc(sizeof(*client));
311 memset(client, 0, sizeof(*client));
312
313 INIT_FLIST_HEAD(&client->list);
314 INIT_FLIST_HEAD(&client->hash_list);
315 INIT_FLIST_HEAD(&client->arg_list);
316 INIT_FLIST_HEAD(&client->eta_list);
317 INIT_FLIST_HEAD(&client->cmd_list);
318
319 client->hostname = strdup(hostname);
320
321 if (type == Fio_client_socket)
322 client->is_sock = 1;
323 else {
324 int ipv6;
325
326 ipv6 = type == Fio_client_ipv6;
327 if (fio_server_parse_host(hostname, ipv6,
328 &client->addr.sin_addr,
329 &client->addr6.sin6_addr))
330 goto err;
331
332 client->port = port;
333 }
334
335 client->fd = -1;
336 client->ops = ops;
337 client->refs = 1;
338 client->type = ops->client_type;
339
340 __fio_client_add_cmd_option(client, "fio");
341
342 flist_add(&client->list, &client_list);
343 nr_clients++;
344 dprint(FD_NET, "client: added <%s>\n", client->hostname);
345 return client;
346err:
347 free(client);
348 return NULL;
349}
350
351int fio_client_add_ini_file(void *cookie, const char *ini_file, int remote)
352{
353 struct fio_client *client = cookie;
354 struct client_file *cf;
355 size_t new_size;
356 void *new_files;
357
358 if (!client)
359 return 1;
360
361 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
362
363 new_size = (client->nr_files + 1) * sizeof(struct client_file);
364 new_files = realloc(client->files, new_size);
365 if (!new_files)
366 return 1;
367
368 client->files = new_files;
369 cf = &client->files[client->nr_files];
370 cf->file = strdup(ini_file);
371 cf->remote = remote;
372 client->nr_files++;
373 return 0;
374}
375
376int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
377{
378 struct fio_client *existing = *cookie;
379 struct fio_client *client;
380
381 if (existing) {
382 /*
383 * We always add our "exec" name as the option, hence 1
384 * means empty.
385 */
386 if (existing->argc == 1)
387 flist_add_tail(&existing->arg_list, &arg_list);
388 else {
389 while (!flist_empty(&arg_list))
390 flist_del_init(arg_list.next);
391 }
392 }
393
394 client = malloc(sizeof(*client));
395 memset(client, 0, sizeof(*client));
396
397 INIT_FLIST_HEAD(&client->list);
398 INIT_FLIST_HEAD(&client->hash_list);
399 INIT_FLIST_HEAD(&client->arg_list);
400 INIT_FLIST_HEAD(&client->eta_list);
401 INIT_FLIST_HEAD(&client->cmd_list);
402
403 if (fio_server_parse_string(hostname, &client->hostname,
404 &client->is_sock, &client->port,
405 &client->addr.sin_addr,
406 &client->addr6.sin6_addr,
407 &client->ipv6))
408 return -1;
409
410 client->fd = -1;
411 client->ops = ops;
412 client->refs = 1;
413 client->type = ops->client_type;
414
415 __fio_client_add_cmd_option(client, "fio");
416
417 flist_add(&client->list, &client_list);
418 nr_clients++;
419 dprint(FD_NET, "client: added <%s>\n", client->hostname);
420 *cookie = client;
421 return 0;
422}
423
424static const char *server_name(struct fio_client *client, char *buf,
425 size_t bufsize)
426{
427 const char *from;
428
429 if (client->ipv6)
430 from = inet_ntop(AF_INET6, (struct sockaddr *) &client->addr6.sin6_addr, buf, bufsize);
431 else if (client->is_sock)
432 from = "sock";
433 else
434 from = inet_ntop(AF_INET, (struct sockaddr *) &client->addr.sin_addr, buf, bufsize);
435
436 return from;
437}
438
439static void probe_client(struct fio_client *client)
440{
441 struct cmd_client_probe_pdu pdu;
442 const char *sname;
443 uint64_t tag;
444 char buf[64];
445
446 dprint(FD_NET, "client: send probe\n");
447
448#ifdef CONFIG_ZLIB
449 pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
450#else
451 pdu.flags = 0;
452#endif
453
454 sname = server_name(client, buf, sizeof(buf));
455 memset(pdu.server, 0, sizeof(pdu.server));
456 strncpy((char *) pdu.server, sname, sizeof(pdu.server) - 1);
457
458 fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
459}
460
461static int fio_client_connect_ip(struct fio_client *client)
462{
463 struct sockaddr *addr;
464 socklen_t socklen;
465 int fd, domain;
466
467 if (client->ipv6) {
468 client->addr6.sin6_family = AF_INET6;
469 client->addr6.sin6_port = htons(client->port);
470 domain = AF_INET6;
471 addr = (struct sockaddr *) &client->addr6;
472 socklen = sizeof(client->addr6);
473 } else {
474 client->addr.sin_family = AF_INET;
475 client->addr.sin_port = htons(client->port);
476 domain = AF_INET;
477 addr = (struct sockaddr *) &client->addr;
478 socklen = sizeof(client->addr);
479 }
480
481 fd = socket(domain, SOCK_STREAM, 0);
482 if (fd < 0) {
483 int ret = -errno;
484
485 log_err("fio: socket: %s\n", strerror(errno));
486 return ret;
487 }
488
489 if (connect(fd, addr, socklen) < 0) {
490 int ret = -errno;
491
492 log_err("fio: connect: %s\n", strerror(errno));
493 log_err("fio: failed to connect to %s:%u\n", client->hostname,
494 client->port);
495 close(fd);
496 return ret;
497 }
498
499 return fd;
500}
501
502static int fio_client_connect_sock(struct fio_client *client)
503{
504 struct sockaddr_un *addr = &client->addr_un;
505 socklen_t len;
506 int fd;
507
508 memset(addr, 0, sizeof(*addr));
509 addr->sun_family = AF_UNIX;
510 strncpy(addr->sun_path, client->hostname, sizeof(addr->sun_path) - 1);
511
512 fd = socket(AF_UNIX, SOCK_STREAM, 0);
513 if (fd < 0) {
514 int ret = -errno;
515
516 log_err("fio: socket: %s\n", strerror(errno));
517 return ret;
518 }
519
520 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
521 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
522 int ret = -errno;
523
524 log_err("fio: connect; %s\n", strerror(errno));
525 close(fd);
526 return ret;
527 }
528
529 return fd;
530}
531
532int fio_client_connect(struct fio_client *client)
533{
534 int fd;
535
536 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
537
538 if (client->is_sock)
539 fd = fio_client_connect_sock(client);
540 else
541 fd = fio_client_connect_ip(client);
542
543 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
544
545 if (fd < 0)
546 return fd;
547
548 client->fd = fd;
549 fio_client_add_hash(client);
550 client->state = Client_connected;
551
552 probe_client(client);
553 return 0;
554}
555
556int fio_client_terminate(struct fio_client *client)
557{
558 return fio_net_send_quit(client->fd);
559}
560
561void fio_clients_terminate(void)
562{
563 struct flist_head *entry;
564 struct fio_client *client;
565
566 dprint(FD_NET, "client: terminate clients\n");
567
568 flist_for_each(entry, &client_list) {
569 client = flist_entry(entry, struct fio_client, list);
570 fio_client_terminate(client);
571 }
572}
573
574static void sig_int(int sig)
575{
576 dprint(FD_NET, "client: got signal %d\n", sig);
577 fio_clients_terminate();
578}
579
580static void client_signal_handler(void)
581{
582 struct sigaction act;
583
584 memset(&act, 0, sizeof(act));
585 act.sa_handler = sig_int;
586 act.sa_flags = SA_RESTART;
587 sigaction(SIGINT, &act, NULL);
588
589 memset(&act, 0, sizeof(act));
590 act.sa_handler = sig_int;
591 act.sa_flags = SA_RESTART;
592 sigaction(SIGTERM, &act, NULL);
593
594/* Windows uses SIGBREAK as a quit signal from other applications */
595#ifdef WIN32
596 memset(&act, 0, sizeof(act));
597 act.sa_handler = sig_int;
598 act.sa_flags = SA_RESTART;
599 sigaction(SIGBREAK, &act, NULL);
600#endif
601
602 memset(&act, 0, sizeof(act));
603 act.sa_handler = sig_show_status;
604 act.sa_flags = SA_RESTART;
605 sigaction(SIGUSR1, &act, NULL);
606}
607
608static int send_client_cmd_line(struct fio_client *client)
609{
610 struct cmd_single_line_pdu *cslp;
611 struct cmd_line_pdu *clp;
612 unsigned long offset;
613 unsigned int *lens;
614 void *pdu;
615 size_t mem;
616 int i, ret;
617
618 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
619
620 lens = malloc(client->argc * sizeof(unsigned int));
621
622 /*
623 * Find out how much mem we need
624 */
625 for (i = 0, mem = 0; i < client->argc; i++) {
626 lens[i] = strlen(client->argv[i]) + 1;
627 mem += lens[i];
628 }
629
630 /*
631 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
632 */
633 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
634
635 pdu = malloc(mem);
636 clp = pdu;
637 offset = sizeof(*clp);
638
639 for (i = 0; i < client->argc; i++) {
640 uint16_t arg_len = lens[i];
641
642 cslp = pdu + offset;
643 strcpy((char *) cslp->text, client->argv[i]);
644 cslp->len = cpu_to_le16(arg_len);
645 offset += sizeof(*cslp) + arg_len;
646 }
647
648 free(lens);
649 clp->lines = cpu_to_le16(client->argc);
650 clp->client_type = __cpu_to_le16(client->type);
651 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
652 free(pdu);
653 return ret;
654}
655
656int fio_clients_connect(void)
657{
658 struct fio_client *client;
659 struct flist_head *entry, *tmp;
660 int ret;
661
662#ifdef WIN32
663 WSADATA wsd;
664 WSAStartup(MAKEWORD(2, 2), &wsd);
665#endif
666
667 dprint(FD_NET, "client: connect all\n");
668
669 client_signal_handler();
670
671 flist_for_each_safe(entry, tmp, &client_list) {
672 client = flist_entry(entry, struct fio_client, list);
673
674 ret = fio_client_connect(client);
675 if (ret) {
676 remove_client(client);
677 continue;
678 }
679
680 if (client->argc > 1)
681 send_client_cmd_line(client);
682 }
683
684 return !nr_clients;
685}
686
687int fio_start_client(struct fio_client *client)
688{
689 dprint(FD_NET, "client: start %s\n", client->hostname);
690 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
691}
692
693int fio_start_all_clients(void)
694{
695 struct fio_client *client;
696 struct flist_head *entry, *tmp;
697 int ret;
698
699 dprint(FD_NET, "client: start all\n");
700
701 fio_client_json_init();
702
703 flist_for_each_safe(entry, tmp, &client_list) {
704 client = flist_entry(entry, struct fio_client, list);
705
706 ret = fio_start_client(client);
707 if (ret) {
708 remove_client(client);
709 continue;
710 }
711 }
712
713 return flist_empty(&client_list);
714}
715
716static int __fio_client_send_remote_ini(struct fio_client *client,
717 const char *filename)
718{
719 struct cmd_load_file_pdu *pdu;
720 size_t p_size;
721 int ret;
722
723 dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
724
725 p_size = sizeof(*pdu) + strlen(filename) + 1;
726 pdu = malloc(p_size);
727 memset(pdu, 0, p_size);
728 pdu->name_len = strlen(filename);
729 strcpy((char *) pdu->file, filename);
730 pdu->client_type = cpu_to_le16((uint16_t) client->type);
731
732 client->sent_job = 1;
733 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
734 free(pdu);
735 return ret;
736}
737
738/*
739 * Send file contents to server backend. We could use sendfile(), but to remain
740 * more portable lets just read/write the darn thing.
741 */
742static int __fio_client_send_local_ini(struct fio_client *client,
743 const char *filename)
744{
745 struct cmd_job_pdu *pdu;
746 size_t p_size;
747 struct stat sb;
748 char *p;
749 void *buf;
750 off_t len;
751 int fd, ret;
752
753 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
754
755 fd = open(filename, O_RDONLY);
756 if (fd < 0) {
757 ret = -errno;
758 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
759 return ret;
760 }
761
762 if (fstat(fd, &sb) < 0) {
763 ret = -errno;
764 log_err("fio: job file stat: %s\n", strerror(errno));
765 close(fd);
766 return ret;
767 }
768
769 p_size = sb.st_size + sizeof(*pdu);
770 pdu = malloc(p_size);
771 buf = pdu->buf;
772
773 len = sb.st_size;
774 p = buf;
775 if (read_data(fd, p, len)) {
776 log_err("fio: failed reading job file %s\n", filename);
777 close(fd);
778 free(pdu);
779 return 1;
780 }
781
782 pdu->buf_len = __cpu_to_le32(sb.st_size);
783 pdu->client_type = cpu_to_le32(client->type);
784
785 client->sent_job = 1;
786 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
787 free(pdu);
788 close(fd);
789 return ret;
790}
791
792int fio_client_send_ini(struct fio_client *client, const char *filename,
793 int remote)
794{
795 int ret;
796
797 if (!remote)
798 ret = __fio_client_send_local_ini(client, filename);
799 else
800 ret = __fio_client_send_remote_ini(client, filename);
801
802 if (!ret)
803 client->sent_job = 1;
804
805 return ret;
806}
807
808static int fio_client_send_cf(struct fio_client *client,
809 struct client_file *cf)
810{
811 return fio_client_send_ini(client, cf->file, cf->remote);
812}
813
814int fio_clients_send_ini(const char *filename)
815{
816 struct fio_client *client;
817 struct flist_head *entry, *tmp;
818
819 flist_for_each_safe(entry, tmp, &client_list) {
820 client = flist_entry(entry, struct fio_client, list);
821
822 if (client->nr_files) {
823 int i;
824
825 for (i = 0; i < client->nr_files; i++) {
826 struct client_file *cf;
827
828 cf = &client->files[i];
829
830 if (fio_client_send_cf(client, cf)) {
831 remove_client(client);
832 break;
833 }
834 }
835 }
836 if (client->sent_job)
837 continue;
838 if (!filename || fio_client_send_ini(client, filename, 0))
839 remove_client(client);
840 }
841
842 return !nr_clients;
843}
844
845int fio_client_update_options(struct fio_client *client,
846 struct thread_options *o, uint64_t *tag)
847{
848 struct cmd_add_job_pdu pdu;
849
850 pdu.thread_number = cpu_to_le32(client->thread_number);
851 pdu.groupid = cpu_to_le32(client->groupid);
852 convert_thread_options_to_net(&pdu.top, o);
853
854 return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
855}
856
857static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
858{
859 dst->max_val = le64_to_cpu(src->max_val);
860 dst->min_val = le64_to_cpu(src->min_val);
861 dst->samples = le64_to_cpu(src->samples);
862
863 /*
864 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
865 */
866 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
867 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
868}
869
870static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
871{
872 int i, j;
873
874 dst->error = le32_to_cpu(src->error);
875 dst->thread_number = le32_to_cpu(src->thread_number);
876 dst->groupid = le32_to_cpu(src->groupid);
877 dst->pid = le32_to_cpu(src->pid);
878 dst->members = le32_to_cpu(src->members);
879 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
880
881 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
882 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
883 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
884 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
885 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
886 }
887
888 dst->usr_time = le64_to_cpu(src->usr_time);
889 dst->sys_time = le64_to_cpu(src->sys_time);
890 dst->ctx = le64_to_cpu(src->ctx);
891 dst->minf = le64_to_cpu(src->minf);
892 dst->majf = le64_to_cpu(src->majf);
893 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
894 dst->percentile_precision = le64_to_cpu(src->percentile_precision);
895
896 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
897 fio_fp64_t *fps = &src->percentile_list[i];
898 fio_fp64_t *fpd = &dst->percentile_list[i];
899
900 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
901 }
902
903 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
904 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
905 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
906 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
907 }
908
909 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
910 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
911 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
912 }
913
914 for (i = 0; i < DDIR_RWDIR_CNT; i++)
915 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
916 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
917
918 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
919 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
920 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
921 dst->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
922 }
923
924 dst->total_submit = le64_to_cpu(src->total_submit);
925 dst->total_complete = le64_to_cpu(src->total_complete);
926
927 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
928 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
929 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
930 }
931
932 dst->total_run_time = le64_to_cpu(src->total_run_time);
933 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
934 dst->total_err_count = le64_to_cpu(src->total_err_count);
935 dst->first_error = le32_to_cpu(src->first_error);
936 dst->kb_base = le32_to_cpu(src->kb_base);
937 dst->unit_base = le32_to_cpu(src->unit_base);
938
939 dst->latency_depth = le32_to_cpu(src->latency_depth);
940 dst->latency_target = le64_to_cpu(src->latency_target);
941 dst->latency_window = le64_to_cpu(src->latency_window);
942 dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
943
944 dst->nr_block_infos = le64_to_cpu(src->nr_block_infos);
945 for (i = 0; i < dst->nr_block_infos; i++)
946 dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
947}
948
949static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
950{
951 int i;
952
953 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
954 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
955 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
956 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
957 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
958 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
959 dst->agg[i] = le64_to_cpu(src->agg[i]);
960 }
961
962 dst->kb_base = le32_to_cpu(src->kb_base);
963 dst->unit_base = le32_to_cpu(src->unit_base);
964 dst->groupid = le32_to_cpu(src->groupid);
965 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
966}
967
968static void json_object_add_client_info(struct json_object *obj,
969 struct fio_client *client)
970{
971 const char *hostname = client->hostname ? client->hostname : "";
972
973 json_object_add_value_string(obj, "hostname", hostname);
974 json_object_add_value_int(obj, "port", client->port);
975}
976
977static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
978{
979 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
980 struct flist_head *opt_list = NULL;
981 struct json_object *tsobj;
982
983 if (client->opt_lists && p->ts.thread_number <= client->jobs)
984 opt_list = &client->opt_lists[p->ts.thread_number - 1];
985
986 tsobj = show_thread_status(&p->ts, &p->rs, opt_list, NULL);
987 client->did_stat = 1;
988 if (tsobj) {
989 json_object_add_client_info(tsobj, client);
990 json_array_add_value_object(clients_array, tsobj);
991 }
992
993 if (sum_stat_clients <= 1)
994 return;
995
996 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr == 1);
997 sum_group_stats(&client_gs, &p->rs);
998
999 client_ts.members++;
1000 client_ts.thread_number = p->ts.thread_number;
1001 client_ts.groupid = p->ts.groupid;
1002 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
1003
1004 if (++sum_stat_nr == sum_stat_clients) {
1005 strcpy(client_ts.name, "All clients");
1006 tsobj = show_thread_status(&client_ts, &client_gs, NULL, NULL);
1007 if (tsobj) {
1008 json_object_add_client_info(tsobj, client);
1009 json_array_add_value_object(clients_array, tsobj);
1010 }
1011 }
1012}
1013
1014static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
1015{
1016 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1017
1018 if (output_format & FIO_OUTPUT_NORMAL)
1019 show_group_stats(gs, NULL);
1020}
1021
1022static void handle_job_opt(struct fio_client *client, struct fio_net_cmd *cmd)
1023{
1024 struct cmd_job_option *pdu = (struct cmd_job_option *) cmd->payload;
1025 struct print_option *p;
1026
1027 if (!job_opt_object)
1028 return;
1029
1030 pdu->global = le16_to_cpu(pdu->global);
1031 pdu->truncated = le16_to_cpu(pdu->truncated);
1032 pdu->groupid = le32_to_cpu(pdu->groupid);
1033
1034 p = malloc(sizeof(*p));
1035 p->name = strdup((char *) pdu->name);
1036 if (pdu->value[0] != '\0')
1037 p->value = strdup((char *) pdu->value);
1038 else
1039 p->value = NULL;
1040
1041 if (pdu->global) {
1042 const char *pos = "";
1043
1044 if (p->value)
1045 pos = p->value;
1046
1047 json_object_add_value_string(job_opt_object, p->name, pos);
1048 } else if (client->opt_lists) {
1049 struct flist_head *opt_list = &client->opt_lists[pdu->groupid];
1050
1051 flist_add_tail(&p->list, opt_list);
1052 }
1053}
1054
1055static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
1056{
1057 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1058 const char *buf = (const char *) pdu->buf;
1059 const char *name;
1060 int fio_unused ret;
1061
1062 name = client->name ? client->name : client->hostname;
1063
1064 if (!client->skip_newline)
1065 fprintf(f_out, "<%s> ", name);
1066 ret = fwrite(buf, pdu->buf_len, 1, f_out);
1067 fflush(f_out);
1068 client->skip_newline = strchr(buf, '\n') == NULL;
1069}
1070
1071static void convert_agg(struct disk_util_agg *agg)
1072{
1073 int i;
1074
1075 for (i = 0; i < 2; i++) {
1076 agg->ios[i] = le64_to_cpu(agg->ios[i]);
1077 agg->merges[i] = le64_to_cpu(agg->merges[i]);
1078 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
1079 agg->ticks[i] = le64_to_cpu(agg->ticks[i]);
1080 }
1081
1082 agg->io_ticks = le64_to_cpu(agg->io_ticks);
1083 agg->time_in_queue = le64_to_cpu(agg->time_in_queue);
1084 agg->slavecount = le32_to_cpu(agg->slavecount);
1085 agg->max_util.u.f = fio_uint64_to_double(le64_to_cpu(agg->max_util.u.i));
1086}
1087
1088static void convert_dus(struct disk_util_stat *dus)
1089{
1090 int i;
1091
1092 for (i = 0; i < 2; i++) {
1093 dus->s.ios[i] = le64_to_cpu(dus->s.ios[i]);
1094 dus->s.merges[i] = le64_to_cpu(dus->s.merges[i]);
1095 dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
1096 dus->s.ticks[i] = le64_to_cpu(dus->s.ticks[i]);
1097 }
1098
1099 dus->s.io_ticks = le64_to_cpu(dus->s.io_ticks);
1100 dus->s.time_in_queue = le64_to_cpu(dus->s.time_in_queue);
1101 dus->s.msec = le64_to_cpu(dus->s.msec);
1102}
1103
1104static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
1105{
1106 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1107
1108 if (!client->disk_stats_shown) {
1109 client->disk_stats_shown = 1;
1110 log_info("\nDisk stats (read/write):\n");
1111 }
1112
1113 if (output_format & FIO_OUTPUT_JSON) {
1114 struct json_object *duobj;
1115 json_array_add_disk_util(&du->dus, &du->agg, du_array);
1116 duobj = json_array_last_value_object(du_array);
1117 json_object_add_client_info(duobj, client);
1118 }
1119 if (output_format & FIO_OUTPUT_TERSE)
1120 print_disk_util(&du->dus, &du->agg, 1, NULL);
1121 if (output_format & FIO_OUTPUT_NORMAL)
1122 print_disk_util(&du->dus, &du->agg, 0, NULL);
1123}
1124
1125static void convert_jobs_eta(struct jobs_eta *je)
1126{
1127 int i;
1128
1129 je->nr_running = le32_to_cpu(je->nr_running);
1130 je->nr_ramp = le32_to_cpu(je->nr_ramp);
1131 je->nr_pending = le32_to_cpu(je->nr_pending);
1132 je->nr_setting_up = le32_to_cpu(je->nr_setting_up);
1133 je->files_open = le32_to_cpu(je->files_open);
1134
1135 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1136 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
1137 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
1138 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
1139 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
1140 je->rate[i] = le32_to_cpu(je->rate[i]);
1141 je->iops[i] = le32_to_cpu(je->iops[i]);
1142 }
1143
1144 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
1145 je->eta_sec = le64_to_cpu(je->eta_sec);
1146 je->nr_threads = le32_to_cpu(je->nr_threads);
1147 je->is_pow2 = le32_to_cpu(je->is_pow2);
1148 je->unit_base = le32_to_cpu(je->unit_base);
1149}
1150
1151void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
1152{
1153 int i;
1154
1155 dst->nr_running += je->nr_running;
1156 dst->nr_ramp += je->nr_ramp;
1157 dst->nr_pending += je->nr_pending;
1158 dst->nr_setting_up += je->nr_setting_up;
1159 dst->files_open += je->files_open;
1160
1161 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1162 dst->m_rate[i] += je->m_rate[i];
1163 dst->t_rate[i] += je->t_rate[i];
1164 dst->m_iops[i] += je->m_iops[i];
1165 dst->t_iops[i] += je->t_iops[i];
1166 dst->rate[i] += je->rate[i];
1167 dst->iops[i] += je->iops[i];
1168 }
1169
1170 dst->elapsed_sec += je->elapsed_sec;
1171
1172 if (je->eta_sec > dst->eta_sec)
1173 dst->eta_sec = je->eta_sec;
1174
1175 dst->nr_threads += je->nr_threads;
1176
1177 /*
1178 * This wont be correct for multiple strings, but at least it
1179 * works for the basic cases.
1180 */
1181 strcpy((char *) dst->run_str, (char *) je->run_str);
1182}
1183
1184static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
1185{
1186 struct fio_net_cmd_reply *reply = NULL;
1187 struct flist_head *entry;
1188
1189 flist_for_each(entry, &client->cmd_list) {
1190 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1191
1192 if (cmd->tag == (uintptr_t) reply)
1193 break;
1194
1195 reply = NULL;
1196 }
1197
1198 if (!reply) {
1199 log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
1200 return;
1201 }
1202
1203 flist_del(&reply->list);
1204 cmd->tag = reply->saved_tag;
1205 free(reply);
1206}
1207
1208int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
1209{
1210 do {
1211 struct fio_net_cmd_reply *reply = NULL;
1212 struct flist_head *entry;
1213
1214 flist_for_each(entry, &client->cmd_list) {
1215 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1216
1217 if (tag == (uintptr_t) reply)
1218 break;
1219
1220 reply = NULL;
1221 }
1222
1223 if (!reply)
1224 break;
1225
1226 usleep(1000);
1227 } while (1);
1228
1229 return 0;
1230}
1231
1232static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
1233{
1234 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1235 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
1236
1237 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
1238
1239 assert(client->eta_in_flight == eta);
1240
1241 client->eta_in_flight = NULL;
1242 flist_del_init(&client->eta_list);
1243 client->eta_timeouts = 0;
1244
1245 if (client->ops->jobs_eta)
1246 client->ops->jobs_eta(client, je);
1247
1248 fio_client_sum_jobs_eta(&eta->eta, je);
1249 fio_client_dec_jobs_eta(eta, client->ops->eta);
1250}
1251
1252static int fio_client_handle_iolog(struct fio_client *client,
1253 struct fio_net_cmd *cmd)
1254{
1255 struct cmd_iolog_pdu *pdu;
1256 bool store_direct;
1257
1258 pdu = convert_iolog(cmd, &store_direct);
1259 if (!pdu) {
1260 log_err("fio: failed converting IO log\n");
1261 return 1;
1262 }
1263
1264 if (store_direct) {
1265 ssize_t ret;
1266 size_t sz;
1267 int fd;
1268
1269 fd = open((const char *) pdu->name,
1270 O_WRONLY | O_CREAT | O_TRUNC, 0644);
1271 if (fd < 0) {
1272 log_err("fio: open log: %s\n", strerror(errno));
1273 return 1;
1274 }
1275
1276 sz = cmd->pdu_len - sizeof(*pdu);
1277 ret = write(fd, pdu->samples, sz);
1278 close(fd);
1279
1280 if (ret != sz) {
1281 log_err("fio: short write on compressed log\n");
1282 return 1;
1283 }
1284
1285 return 0;
1286 } else {
1287 FILE *f;
1288
1289 f = fopen((const char *) pdu->name, "w");
1290 if (!f) {
1291 log_err("fio: fopen log: %s\n", strerror(errno));
1292 return 1;
1293 }
1294
1295 flush_samples(f, pdu->samples,
1296 pdu->nr_samples * sizeof(struct io_sample));
1297 fclose(f);
1298 return 0;
1299 }
1300}
1301
1302static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
1303{
1304 struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
1305 const char *os, *arch;
1306 char bit[16];
1307
1308 os = fio_get_os_string(probe->os);
1309 if (!os)
1310 os = "unknown";
1311
1312 arch = fio_get_arch_string(probe->arch);
1313 if (!arch)
1314 os = "unknown";
1315
1316 sprintf(bit, "%d-bit", probe->bpp * 8);
1317 probe->flags = le64_to_cpu(probe->flags);
1318
1319 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
1320 probe->hostname, probe->bigendian, bit, os, arch,
1321 probe->fio_version, (unsigned long) probe->flags);
1322
1323 if (!client->name)
1324 client->name = strdup((char *) probe->hostname);
1325}
1326
1327static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
1328{
1329 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1330
1331 client->state = Client_started;
1332 client->jobs = le32_to_cpu(pdu->jobs);
1333 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
1334
1335 if (client->jobs) {
1336 int i;
1337
1338 if (client->opt_lists)
1339 free(client->opt_lists);
1340
1341 client->opt_lists = malloc(client->jobs * sizeof(struct flist_head));
1342 for (i = 0; i < client->jobs; i++)
1343 INIT_FLIST_HEAD(&client->opt_lists[i]);
1344 }
1345
1346 sum_stat_clients += client->nr_stat;
1347}
1348
1349static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
1350{
1351 if (client->error)
1352 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
1353}
1354
1355static void convert_stop(struct fio_net_cmd *cmd)
1356{
1357 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1358
1359 pdu->error = le32_to_cpu(pdu->error);
1360}
1361
1362static void convert_text(struct fio_net_cmd *cmd)
1363{
1364 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1365
1366 pdu->level = le32_to_cpu(pdu->level);
1367 pdu->buf_len = le32_to_cpu(pdu->buf_len);
1368 pdu->log_sec = le64_to_cpu(pdu->log_sec);
1369 pdu->log_usec = le64_to_cpu(pdu->log_usec);
1370}
1371
1372static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
1373 struct cmd_iolog_pdu *pdu)
1374{
1375#ifdef CONFIG_ZLIB
1376 struct cmd_iolog_pdu *ret;
1377 z_stream stream;
1378 uint32_t nr_samples;
1379 size_t total;
1380 void *p;
1381
1382 stream.zalloc = Z_NULL;
1383 stream.zfree = Z_NULL;
1384 stream.opaque = Z_NULL;
1385 stream.avail_in = 0;
1386 stream.next_in = Z_NULL;
1387
1388 if (inflateInit(&stream) != Z_OK)
1389 return NULL;
1390
1391 /*
1392 * Get header first, it's not compressed
1393 */
1394 nr_samples = le64_to_cpu(pdu->nr_samples);
1395
1396 total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
1397 ret = malloc(total + sizeof(*pdu));
1398 ret->nr_samples = nr_samples;
1399
1400 memcpy(ret, pdu, sizeof(*pdu));
1401
1402 p = (void *) ret + sizeof(*pdu);
1403
1404 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
1405 stream.next_in = (void *) pdu + sizeof(*pdu);
1406 while (stream.avail_in) {
1407 unsigned int this_chunk = 65536;
1408 unsigned int this_len;
1409 int err;
1410
1411 if (this_chunk > total)
1412 this_chunk = total;
1413
1414 stream.avail_out = this_chunk;
1415 stream.next_out = p;
1416 err = inflate(&stream, Z_NO_FLUSH);
1417 /* may be Z_OK, or Z_STREAM_END */
1418 if (err < 0) {
1419 log_err("fio: inflate error %d\n", err);
1420 free(ret);
1421 ret = NULL;
1422 goto err;
1423 }
1424
1425 this_len = this_chunk - stream.avail_out;
1426 p += this_len;
1427 total -= this_len;
1428 }
1429
1430err:
1431 inflateEnd(&stream);
1432 return ret;
1433#else
1434 return NULL;
1435#endif
1436}
1437
1438/*
1439 * This has been compressed on the server side, since it can be big.
1440 * Uncompress here.
1441 */
1442static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
1443 bool *store_direct)
1444{
1445 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
1446 struct cmd_iolog_pdu *ret;
1447 uint64_t i;
1448 int compressed;
1449 void *samples;
1450
1451 *store_direct = false;
1452
1453 /*
1454 * Convert if compressed and we support it. If it's not
1455 * compressed, we need not do anything.
1456 */
1457 compressed = le32_to_cpu(pdu->compressed);
1458 if (compressed == XMIT_COMPRESSED) {
1459#ifndef CONFIG_ZLIB
1460 log_err("fio: server sent compressed data by mistake\n");
1461 return NULL;
1462#endif
1463 ret = convert_iolog_gz(cmd, pdu);
1464 printf("compressed iolog, %p\n", ret);
1465 if (!ret) {
1466 log_err("fio: failed decompressing log\n");
1467 return NULL;
1468 }
1469 } else if (compressed == STORE_COMPRESSED) {
1470 *store_direct = true;
1471 ret = pdu;
1472 } else
1473 ret = pdu;
1474
1475 ret->nr_samples = le64_to_cpu(ret->nr_samples);
1476 ret->thread_number = le32_to_cpu(ret->thread_number);
1477 ret->log_type = le32_to_cpu(ret->log_type);
1478 ret->compressed = le32_to_cpu(ret->compressed);
1479 ret->log_offset = le32_to_cpu(ret->log_offset);
1480
1481 if (*store_direct)
1482 return ret;
1483
1484 samples = &ret->samples[0];
1485 for (i = 0; i < ret->nr_samples; i++) {
1486 struct io_sample *s;
1487
1488 s = __get_sample(samples, ret->log_offset, i);
1489 s->time = le64_to_cpu(s->time);
1490 s->val = le64_to_cpu(s->val);
1491 s->__ddir = le32_to_cpu(s->__ddir);
1492 s->bs = le32_to_cpu(s->bs);
1493
1494 if (ret->log_offset) {
1495 struct io_sample_offset *so = (void *) s;
1496
1497 so->offset = le64_to_cpu(so->offset);
1498 }
1499 }
1500
1501 return ret;
1502}
1503
1504static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
1505 size_t size, uint64_t tag)
1506{
1507 rep->error = cpu_to_le32(rep->error);
1508 fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
1509}
1510
1511static int fio_send_file(struct fio_client *client, struct cmd_sendfile *pdu,
1512 uint64_t tag)
1513{
1514 struct cmd_sendfile_reply *rep;
1515 struct stat sb;
1516 size_t size;
1517 int fd;
1518
1519 size = sizeof(*rep);
1520 rep = malloc(size);
1521
1522 if (stat((char *)pdu->path, &sb) < 0) {
1523fail:
1524 rep->error = errno;
1525 sendfile_reply(client->fd, rep, size, tag);
1526 free(rep);
1527 return 1;
1528 }
1529
1530 size += sb.st_size;
1531 rep = realloc(rep, size);
1532 rep->size = cpu_to_le32((uint32_t) sb.st_size);
1533
1534 fd = open((char *)pdu->path, O_RDONLY);
1535 if (fd == -1 )
1536 goto fail;
1537
1538 rep->error = read_data(fd, &rep->data, sb.st_size);
1539 sendfile_reply(client->fd, rep, size, tag);
1540 free(rep);
1541 close(fd);
1542 return 0;
1543}
1544
1545int fio_handle_client(struct fio_client *client)
1546{
1547 struct client_ops *ops = client->ops;
1548 struct fio_net_cmd *cmd;
1549
1550 dprint(FD_NET, "client: handle %s\n", client->hostname);
1551
1552 cmd = fio_net_recv_cmd(client->fd, true);
1553 if (!cmd)
1554 return 0;
1555
1556 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1557 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
1558
1559 switch (cmd->opcode) {
1560 case FIO_NET_CMD_QUIT:
1561 if (ops->quit)
1562 ops->quit(client, cmd);
1563 remove_client(client);
1564 break;
1565 case FIO_NET_CMD_TEXT:
1566 convert_text(cmd);
1567 ops->text(client, cmd);
1568 break;
1569 case FIO_NET_CMD_DU: {
1570 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1571
1572 convert_dus(&du->dus);
1573 convert_agg(&du->agg);
1574
1575 ops->disk_util(client, cmd);
1576 break;
1577 }
1578 case FIO_NET_CMD_TS: {
1579 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1580
1581 convert_ts(&p->ts, &p->ts);
1582 convert_gs(&p->rs, &p->rs);
1583
1584 ops->thread_status(client, cmd);
1585 break;
1586 }
1587 case FIO_NET_CMD_GS: {
1588 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1589
1590 convert_gs(gs, gs);
1591
1592 ops->group_stats(client, cmd);
1593 break;
1594 }
1595 case FIO_NET_CMD_ETA: {
1596 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1597
1598 remove_reply_cmd(client, cmd);
1599 convert_jobs_eta(je);
1600 handle_eta(client, cmd);
1601 break;
1602 }
1603 case FIO_NET_CMD_PROBE:
1604 remove_reply_cmd(client, cmd);
1605 ops->probe(client, cmd);
1606 break;
1607 case FIO_NET_CMD_SERVER_START:
1608 client->state = Client_running;
1609 if (ops->job_start)
1610 ops->job_start(client, cmd);
1611 break;
1612 case FIO_NET_CMD_START: {
1613 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1614
1615 pdu->jobs = le32_to_cpu(pdu->jobs);
1616 ops->start(client, cmd);
1617 break;
1618 }
1619 case FIO_NET_CMD_STOP: {
1620 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1621
1622 convert_stop(cmd);
1623 client->state = Client_stopped;
1624 client->error = le32_to_cpu(pdu->error);
1625 client->signal = le32_to_cpu(pdu->signal);
1626 ops->stop(client, cmd);
1627 break;
1628 }
1629 case FIO_NET_CMD_ADD_JOB: {
1630 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1631
1632 client->thread_number = le32_to_cpu(pdu->thread_number);
1633 client->groupid = le32_to_cpu(pdu->groupid);
1634
1635 if (ops->add_job)
1636 ops->add_job(client, cmd);
1637 break;
1638 }
1639 case FIO_NET_CMD_IOLOG:
1640 fio_client_handle_iolog(client, cmd);
1641 break;
1642 case FIO_NET_CMD_UPDATE_JOB:
1643 ops->update_job(client, cmd);
1644 remove_reply_cmd(client, cmd);
1645 break;
1646 case FIO_NET_CMD_VTRIGGER: {
1647 struct all_io_list *pdu = (struct all_io_list *) cmd->payload;
1648 char buf[128];
1649 int off = 0;
1650
1651 if (aux_path) {
1652 strcpy(buf, aux_path);
1653 off = strlen(buf);
1654 }
1655
1656 __verify_save_state(pdu, server_name(client, &buf[off], sizeof(buf) - off));
1657 exec_trigger(trigger_cmd);
1658 break;
1659 }
1660 case FIO_NET_CMD_SENDFILE: {
1661 struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
1662 fio_send_file(client, pdu, cmd->tag);
1663 break;
1664 }
1665 case FIO_NET_CMD_JOB_OPT: {
1666 handle_job_opt(client, cmd);
1667 break;
1668 }
1669 default:
1670 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1671 break;
1672 }
1673
1674 free(cmd);
1675 return 1;
1676}
1677
1678int fio_clients_send_trigger(const char *cmd)
1679{
1680 struct flist_head *entry;
1681 struct fio_client *client;
1682 size_t slen;
1683
1684 dprint(FD_NET, "client: send vtrigger: %s\n", cmd);
1685
1686 if (!cmd)
1687 slen = 0;
1688 else
1689 slen = strlen(cmd);
1690
1691 flist_for_each(entry, &client_list) {
1692 struct cmd_vtrigger_pdu *pdu;
1693
1694 client = flist_entry(entry, struct fio_client, list);
1695
1696 pdu = malloc(sizeof(*pdu) + slen);
1697 pdu->len = cpu_to_le16((uint16_t) slen);
1698 if (slen)
1699 memcpy(pdu->cmd, cmd, slen);
1700 fio_net_send_cmd(client->fd, FIO_NET_CMD_VTRIGGER, pdu,
1701 sizeof(*pdu) + slen, NULL, NULL);
1702 free(pdu);
1703 }
1704
1705 return 0;
1706}
1707
1708static void request_client_etas(struct client_ops *ops)
1709{
1710 struct fio_client *client;
1711 struct flist_head *entry;
1712 struct client_eta *eta;
1713 int skipped = 0;
1714
1715 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1716
1717 eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
1718 eta->pending = nr_clients;
1719
1720 flist_for_each(entry, &client_list) {
1721 client = flist_entry(entry, struct fio_client, list);
1722
1723 if (!flist_empty(&client->eta_list)) {
1724 skipped++;
1725 continue;
1726 }
1727 if (client->state != Client_running)
1728 continue;
1729
1730 assert(!client->eta_in_flight);
1731 flist_add_tail(&client->eta_list, &eta_list);
1732 client->eta_in_flight = eta;
1733 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1734 (uintptr_t) eta, &client->cmd_list);
1735 }
1736
1737 while (skipped--) {
1738 if (!fio_client_dec_jobs_eta(eta, ops->eta))
1739 break;
1740 }
1741
1742 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1743}
1744
1745/*
1746 * A single SEND_ETA timeout isn't fatal. Attempt to recover.
1747 */
1748static int handle_cmd_timeout(struct fio_client *client,
1749 struct fio_net_cmd_reply *reply)
1750{
1751 flist_del(&reply->list);
1752 free(reply);
1753
1754 if (reply->opcode != FIO_NET_CMD_SEND_ETA)
1755 return 1;
1756
1757 log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
1758
1759 flist_del_init(&client->eta_list);
1760 if (client->eta_in_flight) {
1761 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
1762 client->eta_in_flight = NULL;
1763 }
1764
1765 /*
1766 * If we fail 5 in a row, give up...
1767 */
1768 if (client->eta_timeouts++ > 5)
1769 return 1;
1770
1771 return 0;
1772}
1773
1774static int client_check_cmd_timeout(struct fio_client *client,
1775 struct timeval *now)
1776{
1777 struct fio_net_cmd_reply *reply;
1778 struct flist_head *entry, *tmp;
1779 int ret = 0;
1780
1781 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1782 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1783
1784 if (mtime_since(&reply->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1785 continue;
1786
1787 if (!handle_cmd_timeout(client, reply))
1788 continue;
1789
1790 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1791 fio_server_op(reply->opcode));
1792 ret = 1;
1793 }
1794
1795 return flist_empty(&client->cmd_list) && ret;
1796}
1797
1798static int fio_check_clients_timed_out(void)
1799{
1800 struct fio_client *client;
1801 struct flist_head *entry, *tmp;
1802 struct timeval tv;
1803 int ret = 0;
1804
1805 fio_gettime(&tv, NULL);
1806
1807 flist_for_each_safe(entry, tmp, &client_list) {
1808 client = flist_entry(entry, struct fio_client, list);
1809
1810 if (flist_empty(&client->cmd_list))
1811 continue;
1812
1813 if (!client_check_cmd_timeout(client, &tv))
1814 continue;
1815
1816 if (client->ops->timed_out)
1817 client->ops->timed_out(client);
1818 else
1819 log_err("fio: client %s timed out\n", client->hostname);
1820
1821 client->error = ETIMEDOUT;
1822 remove_client(client);
1823 ret = 1;
1824 }
1825
1826 return ret;
1827}
1828
1829int fio_handle_clients(struct client_ops *ops)
1830{
1831 struct pollfd *pfds;
1832 int i, ret = 0, retval = 0;
1833
1834 fio_gettime(&eta_tv, NULL);
1835
1836 pfds = malloc(nr_clients * sizeof(struct pollfd));
1837
1838 init_thread_stat(&client_ts);
1839 init_group_run_stat(&client_gs);
1840
1841 while (!exit_backend && nr_clients) {
1842 struct flist_head *entry, *tmp;
1843 struct fio_client *client;
1844
1845 i = 0;
1846 flist_for_each_safe(entry, tmp, &client_list) {
1847 client = flist_entry(entry, struct fio_client, list);
1848
1849 if (!client->sent_job && !client->ops->stay_connected &&
1850 flist_empty(&client->cmd_list)) {
1851 remove_client(client);
1852 continue;
1853 }
1854
1855 pfds[i].fd = client->fd;
1856 pfds[i].events = POLLIN;
1857 i++;
1858 }
1859
1860 if (!nr_clients)
1861 break;
1862
1863 assert(i == nr_clients);
1864
1865 do {
1866 struct timeval tv;
1867 int timeout;
1868
1869 fio_gettime(&tv, NULL);
1870 if (mtime_since(&eta_tv, &tv) >= 900) {
1871 request_client_etas(ops);
1872 memcpy(&eta_tv, &tv, sizeof(tv));
1873
1874 if (fio_check_clients_timed_out())
1875 break;
1876 }
1877
1878 check_trigger_file();
1879
1880 timeout = min(100u, ops->eta_msec);
1881
1882 ret = poll(pfds, nr_clients, timeout);
1883 if (ret < 0) {
1884 if (errno == EINTR)
1885 continue;
1886 log_err("fio: poll clients: %s\n", strerror(errno));
1887 break;
1888 } else if (!ret)
1889 continue;
1890 } while (ret <= 0);
1891
1892 for (i = 0; i < nr_clients; i++) {
1893 if (!(pfds[i].revents & POLLIN))
1894 continue;
1895
1896 client = find_client_by_fd(pfds[i].fd);
1897 if (!client) {
1898 log_err("fio: unknown client fd %ld\n", (long) pfds[i].fd);
1899 continue;
1900 }
1901 if (!fio_handle_client(client)) {
1902 log_info("client: host=%s disconnected\n",
1903 client->hostname);
1904 remove_client(client);
1905 retval = 1;
1906 } else if (client->error)
1907 retval = 1;
1908 fio_put_client(client);
1909 }
1910 }
1911
1912 fio_client_json_fini();
1913
1914 free(pfds);
1915 return retval || error_clients;
1916}
fio - Flexible IO Tester