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Merge branch 'security-token' of https://github.com/sfc-gh-rnarubin/fio
[fio.git] / client.c
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CommitLineData
1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <errno.h>
5#include <fcntl.h>
6#include <poll.h>
7#include <sys/types.h>
8#include <sys/stat.h>
9#include <sys/socket.h>
10#include <sys/un.h>
11#include <netinet/in.h>
12#include <arpa/inet.h>
13#include <netdb.h>
14#include <signal.h>
15#ifdef CONFIG_ZLIB
16#include <zlib.h>
17#endif
18
19#include "fio.h"
20#include "client.h"
21#include "server.h"
22#include "flist.h"
23#include "hash.h"
24#include "verify-state.h"
25
26static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
27static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
28static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
29static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
30static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
31static void handle_stop(struct fio_client *client);
32static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
33
34static void convert_text(struct fio_net_cmd *cmd);
35static void client_display_thread_status(struct jobs_eta *je);
36
37struct client_ops const fio_client_ops = {
38 .text = handle_text,
39 .disk_util = handle_du,
40 .thread_status = handle_ts,
41 .group_stats = handle_gs,
42 .stop = handle_stop,
43 .start = handle_start,
44 .eta = client_display_thread_status,
45 .probe = handle_probe,
46 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
47 .client_type = FIO_CLIENT_TYPE_CLI,
48};
49
50static struct timespec eta_ts;
51
52static FLIST_HEAD(client_list);
53static FLIST_HEAD(eta_list);
54
55static FLIST_HEAD(arg_list);
56
57struct thread_stat client_ts;
58struct group_run_stats client_gs;
59int sum_stat_clients;
60
61static int sum_stat_nr;
62static struct buf_output allclients;
63static struct json_object *root = NULL;
64static struct json_object *global_opt_object = NULL;
65static struct json_array *global_opt_array = NULL;
66static struct json_array *clients_array = NULL;
67static struct json_array *du_array = NULL;
68
69static int error_clients;
70
71#define FIO_CLIENT_HASH_BITS 7
72#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
73#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
74static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
75
76static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *, bool *);
77
78static void fio_client_add_hash(struct fio_client *client)
79{
80 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
81
82 bucket &= FIO_CLIENT_HASH_MASK;
83 flist_add(&client->hash_list, &client_hash[bucket]);
84}
85
86static void fio_client_remove_hash(struct fio_client *client)
87{
88 if (!flist_empty(&client->hash_list))
89 flist_del_init(&client->hash_list);
90}
91
92static void fio_init fio_client_hash_init(void)
93{
94 int i;
95
96 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
97 INIT_FLIST_HEAD(&client_hash[i]);
98}
99
100static int read_data(int fd, void *data, size_t size)
101{
102 ssize_t ret;
103
104 while (size) {
105 ret = read(fd, data, size);
106 if (ret < 0) {
107 if (errno == EAGAIN || errno == EINTR)
108 continue;
109 break;
110 } else if (!ret)
111 break;
112 else {
113 data += ret;
114 size -= ret;
115 }
116 }
117
118 if (size)
119 return EAGAIN;
120
121 return 0;
122}
123
124static int read_ini_data(int fd, void *data, size_t size)
125{
126 char *p = data;
127 int ret = 0;
128 FILE *fp;
129 int dupfd;
130
131 dupfd = dup(fd);
132 if (dupfd < 0)
133 return errno;
134
135 fp = fdopen(dupfd, "r");
136 if (!fp) {
137 ret = errno;
138 close(dupfd);
139 goto out;
140 }
141
142 while (1) {
143 ssize_t len;
144 char buf[OPT_LEN_MAX+1], *sub;
145
146 if (!fgets(buf, sizeof(buf), fp)) {
147 if (ferror(fp)) {
148 if (errno == EAGAIN || errno == EINTR)
149 continue;
150 ret = errno;
151 }
152 break;
153 }
154
155 sub = fio_option_dup_subs(buf);
156 len = strlen(sub);
157 if (len + 1 > size) {
158 log_err("fio: no space left to read data\n");
159 free(sub);
160 ret = ENOSPC;
161 break;
162 }
163
164 memcpy(p, sub, len);
165 free(sub);
166 p += len;
167 *p = '\0';
168 size -= len;
169 }
170
171 fclose(fp);
172out:
173 return ret;
174}
175
176static void fio_client_json_init(void)
177{
178 char time_buf[32];
179 time_t time_p;
180
181 if (!(output_format & FIO_OUTPUT_JSON))
182 return;
183
184 time(&time_p);
185 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
186 time_buf[strlen(time_buf) - 1] = '\0';
187
188 root = json_create_object();
189 json_object_add_value_string(root, "fio version", fio_version_string);
190 json_object_add_value_int(root, "timestamp", time_p);
191 json_object_add_value_string(root, "time", time_buf);
192
193 if (nr_clients == 1) {
194 global_opt_object = json_create_object();
195 json_object_add_value_object(root, "global options", global_opt_object);
196 } else {
197 global_opt_array = json_create_array();
198 json_object_add_value_array(root, "global options", global_opt_array);
199 }
200 clients_array = json_create_array();
201 json_object_add_value_array(root, "client_stats", clients_array);
202 du_array = json_create_array();
203 json_object_add_value_array(root, "disk_util", du_array);
204}
205
206static void fio_client_json_fini(void)
207{
208 struct buf_output out;
209
210 if (!root)
211 return;
212
213 buf_output_init(&out);
214
215 __log_buf(&out, "\n");
216 json_print_object(root, &out);
217 __log_buf(&out, "\n");
218 log_info_buf(out.buf, out.buflen);
219
220 buf_output_free(&out);
221
222 json_free_object(root);
223 root = NULL;
224 global_opt_object = NULL;
225 global_opt_array = NULL;
226 clients_array = NULL;
227 du_array = NULL;
228}
229
230static struct fio_client *find_client_by_fd(int fd)
231{
232 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
233 struct fio_client *client;
234 struct flist_head *entry;
235
236 flist_for_each(entry, &client_hash[bucket]) {
237 client = flist_entry(entry, struct fio_client, hash_list);
238
239 if (client->fd == fd) {
240 client->refs++;
241 return client;
242 }
243 }
244
245 return NULL;
246}
247
248void fio_put_client(struct fio_client *client)
249{
250 if (--client->refs)
251 return;
252
253 log_info_buf(client->buf.buf, client->buf.buflen);
254 buf_output_free(&client->buf);
255
256 free(client->hostname);
257 if (client->argv)
258 free(client->argv);
259 if (client->name)
260 free(client->name);
261 while (client->nr_files) {
262 struct client_file *cf = &client->files[--client->nr_files];
263
264 free(cf->file);
265 }
266 if (client->files)
267 free(client->files);
268 if (client->opt_lists)
269 free(client->opt_lists);
270
271 if (!client->did_stat)
272 sum_stat_clients--;
273
274 if (client->error)
275 error_clients++;
276
277 free(client);
278}
279
280static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
281{
282 if (!--eta->pending) {
283 eta_fn(&eta->eta);
284 free(eta);
285 return 0;
286 }
287
288 return 1;
289}
290
291static void fio_drain_client_text(struct fio_client *client)
292{
293 do {
294 struct fio_net_cmd *cmd = NULL;
295
296 if (fio_server_poll_fd(client->fd, POLLIN, 0))
297 cmd = fio_net_recv_cmd(client->fd, false);
298 if (!cmd)
299 break;
300
301 if (cmd->opcode == FIO_NET_CMD_TEXT) {
302 convert_text(cmd);
303 client->ops->text(client, cmd);
304 }
305
306 free(cmd);
307 } while (1);
308}
309
310static void remove_client(struct fio_client *client)
311{
312 assert(client->refs);
313
314 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
315
316 fio_drain_client_text(client);
317
318 if (!flist_empty(&client->list))
319 flist_del_init(&client->list);
320
321 fio_client_remove_hash(client);
322
323 if (!flist_empty(&client->eta_list)) {
324 flist_del_init(&client->eta_list);
325 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
326 }
327
328 close(client->fd);
329 client->fd = -1;
330
331 if (client->ops->removed)
332 client->ops->removed(client);
333
334 nr_clients--;
335 fio_put_client(client);
336}
337
338struct fio_client *fio_get_client(struct fio_client *client)
339{
340 client->refs++;
341 return client;
342}
343
344static void __fio_client_add_cmd_option(struct fio_client *client,
345 const char *opt)
346{
347 int index;
348
349 index = client->argc++;
350 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
351 client->argv[index] = strdup(opt);
352 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
353}
354
355void fio_client_add_cmd_option(void *cookie, const char *opt)
356{
357 struct fio_client *client = cookie;
358 struct flist_head *entry;
359
360 if (!client || !opt)
361 return;
362
363 __fio_client_add_cmd_option(client, opt);
364
365 /*
366 * Duplicate arguments to shared client group
367 */
368 flist_for_each(entry, &arg_list) {
369 client = flist_entry(entry, struct fio_client, arg_list);
370
371 __fio_client_add_cmd_option(client, opt);
372 }
373}
374
375static struct fio_client *get_new_client(void)
376{
377 struct fio_client *client;
378
379 client = calloc(1, sizeof(*client));
380
381 INIT_FLIST_HEAD(&client->list);
382 INIT_FLIST_HEAD(&client->hash_list);
383 INIT_FLIST_HEAD(&client->arg_list);
384 INIT_FLIST_HEAD(&client->eta_list);
385 INIT_FLIST_HEAD(&client->cmd_list);
386
387 buf_output_init(&client->buf);
388
389 return client;
390}
391
392struct fio_client *fio_client_add_explicit(struct client_ops *ops,
393 const char *hostname, int type,
394 int port)
395{
396 struct fio_client *client;
397
398 client = get_new_client();
399
400 if (type == Fio_client_socket)
401 client->is_sock = true;
402 else {
403 int ipv6;
404
405 ipv6 = type == Fio_client_ipv6;
406 if (fio_server_parse_host(hostname, ipv6,
407 &client->addr.sin_addr,
408 &client->addr6.sin6_addr))
409 goto err;
410
411 client->port = port;
412 }
413
414 client->fd = -1;
415 client->ops = ops;
416 client->refs = 1;
417 client->type = ops->client_type;
418 client->hostname = strdup(hostname);
419
420 __fio_client_add_cmd_option(client, "fio");
421
422 flist_add(&client->list, &client_list);
423 nr_clients++;
424 dprint(FD_NET, "client: added <%s>\n", client->hostname);
425 return client;
426err:
427 free(client);
428 return NULL;
429}
430
431int fio_client_add_ini_file(void *cookie, const char *ini_file, bool remote)
432{
433 struct fio_client *client = cookie;
434 struct client_file *cf;
435 size_t new_size;
436 void *new_files;
437
438 if (!client)
439 return 1;
440
441 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
442
443 new_size = (client->nr_files + 1) * sizeof(struct client_file);
444 new_files = realloc(client->files, new_size);
445 if (!new_files)
446 return 1;
447
448 client->files = new_files;
449 cf = &client->files[client->nr_files];
450 cf->file = strdup(ini_file);
451 cf->remote = remote;
452 client->nr_files++;
453 return 0;
454}
455
456int fio_client_add(struct client_ops const *ops, const char *hostname, void **cookie)
457{
458 struct fio_client *existing = *cookie;
459 struct fio_client *client;
460
461 if (existing) {
462 /*
463 * We always add our "exec" name as the option, hence 1
464 * means empty.
465 */
466 if (existing->argc == 1)
467 flist_add_tail(&existing->arg_list, &arg_list);
468 else {
469 while (!flist_empty(&arg_list))
470 flist_del_init(arg_list.next);
471 }
472 }
473
474 client = get_new_client();
475
476 if (fio_server_parse_string(hostname, &client->hostname,
477 &client->is_sock, &client->port,
478 &client->addr.sin_addr,
479 &client->addr6.sin6_addr,
480 &client->ipv6)) {
481 fio_put_client(client);
482 return -1;
483 }
484
485 client->fd = -1;
486 client->ops = ops;
487 client->refs = 1;
488 client->type = ops->client_type;
489
490 __fio_client_add_cmd_option(client, "fio");
491
492 flist_add(&client->list, &client_list);
493 nr_clients++;
494 dprint(FD_NET, "client: added <%s>\n", client->hostname);
495 *cookie = client;
496 return 0;
497}
498
499static const char *server_name(struct fio_client *client, char *buf,
500 size_t bufsize)
501{
502 const char *from;
503
504 if (client->ipv6)
505 from = inet_ntop(AF_INET6, (struct sockaddr *) &client->addr6.sin6_addr, buf, bufsize);
506 else if (client->is_sock)
507 from = "sock";
508 else
509 from = inet_ntop(AF_INET, (struct sockaddr *) &client->addr.sin_addr, buf, bufsize);
510
511 return from;
512}
513
514static void probe_client(struct fio_client *client)
515{
516 struct cmd_client_probe_pdu pdu;
517 const char *sname;
518 uint64_t tag;
519 char buf[64];
520
521 dprint(FD_NET, "client: send probe\n");
522
523#ifdef CONFIG_ZLIB
524 pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
525#else
526 pdu.flags = 0;
527#endif
528
529 sname = server_name(client, buf, sizeof(buf));
530 memset(pdu.server, 0, sizeof(pdu.server));
531 snprintf((char *) pdu.server, sizeof(pdu.server), "%s", sname);
532
533 fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
534}
535
536static int fio_client_connect_ip(struct fio_client *client)
537{
538 struct sockaddr *addr;
539 socklen_t socklen;
540 int fd, domain;
541
542 if (client->ipv6) {
543 client->addr6.sin6_family = AF_INET6;
544 client->addr6.sin6_port = htons(client->port);
545 domain = AF_INET6;
546 addr = (struct sockaddr *) &client->addr6;
547 socklen = sizeof(client->addr6);
548 } else {
549 client->addr.sin_family = AF_INET;
550 client->addr.sin_port = htons(client->port);
551 domain = AF_INET;
552 addr = (struct sockaddr *) &client->addr;
553 socklen = sizeof(client->addr);
554 }
555
556 fd = socket(domain, SOCK_STREAM, 0);
557 if (fd < 0) {
558 int ret = -errno;
559
560 log_err("fio: socket: %s\n", strerror(errno));
561 return ret;
562 }
563
564 if (connect(fd, addr, socklen) < 0) {
565 int ret = -errno;
566
567 log_err("fio: connect: %s\n", strerror(errno));
568 log_err("fio: failed to connect to %s:%u\n", client->hostname,
569 client->port);
570 close(fd);
571 return ret;
572 }
573
574 return fd;
575}
576
577static int fio_client_connect_sock(struct fio_client *client)
578{
579 struct sockaddr_un *addr = &client->addr_un;
580 socklen_t len;
581 int fd;
582
583 memset(addr, 0, sizeof(*addr));
584 addr->sun_family = AF_UNIX;
585 snprintf(addr->sun_path, sizeof(addr->sun_path), "%s",
586 client->hostname);
587
588 fd = socket(AF_UNIX, SOCK_STREAM, 0);
589 if (fd < 0) {
590 int ret = -errno;
591
592 log_err("fio: socket: %s\n", strerror(errno));
593 return ret;
594 }
595
596 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
597 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
598 int ret = -errno;
599
600 log_err("fio: connect; %s\n", strerror(errno));
601 close(fd);
602 return ret;
603 }
604
605 return fd;
606}
607
608int fio_client_connect(struct fio_client *client)
609{
610 int fd;
611
612 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
613
614 if (client->is_sock)
615 fd = fio_client_connect_sock(client);
616 else
617 fd = fio_client_connect_ip(client);
618
619 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
620
621 if (fd < 0)
622 return fd;
623
624 client->fd = fd;
625 fio_client_add_hash(client);
626 client->state = Client_connected;
627
628 probe_client(client);
629 return 0;
630}
631
632int fio_client_terminate(struct fio_client *client)
633{
634 return fio_net_send_quit(client->fd);
635}
636
637static void fio_clients_terminate(void)
638{
639 struct flist_head *entry;
640 struct fio_client *client;
641
642 dprint(FD_NET, "client: terminate clients\n");
643
644 flist_for_each(entry, &client_list) {
645 client = flist_entry(entry, struct fio_client, list);
646 fio_client_terminate(client);
647 }
648}
649
650static void sig_int(int sig)
651{
652 dprint(FD_NET, "client: got signal %d\n", sig);
653 fio_clients_terminate();
654}
655
656static void client_signal_handler(void)
657{
658 struct sigaction act;
659
660 memset(&act, 0, sizeof(act));
661 act.sa_handler = sig_int;
662 act.sa_flags = SA_RESTART;
663 sigaction(SIGINT, &act, NULL);
664
665 memset(&act, 0, sizeof(act));
666 act.sa_handler = sig_int;
667 act.sa_flags = SA_RESTART;
668 sigaction(SIGTERM, &act, NULL);
669
670/* Windows uses SIGBREAK as a quit signal from other applications */
671#ifdef WIN32
672 memset(&act, 0, sizeof(act));
673 act.sa_handler = sig_int;
674 act.sa_flags = SA_RESTART;
675 sigaction(SIGBREAK, &act, NULL);
676#endif
677
678 memset(&act, 0, sizeof(act));
679 act.sa_handler = sig_show_status;
680 act.sa_flags = SA_RESTART;
681 sigaction(SIGUSR1, &act, NULL);
682}
683
684static int send_client_cmd_line(struct fio_client *client)
685{
686 struct cmd_single_line_pdu *cslp;
687 struct cmd_line_pdu *clp;
688 unsigned long offset;
689 unsigned int *lens;
690 void *pdu;
691 size_t mem;
692 int i, ret;
693
694 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
695
696 lens = malloc(client->argc * sizeof(unsigned int));
697
698 /*
699 * Find out how much mem we need
700 */
701 for (i = 0, mem = 0; i < client->argc; i++) {
702 lens[i] = strlen(client->argv[i]) + 1;
703 mem += lens[i];
704 }
705
706 /*
707 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
708 */
709 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
710
711 pdu = malloc(mem);
712 clp = pdu;
713 offset = sizeof(*clp);
714
715 for (i = 0; i < client->argc; i++) {
716 uint16_t arg_len = lens[i];
717
718 cslp = pdu + offset;
719 strcpy((char *) cslp->text, client->argv[i]);
720 cslp->len = cpu_to_le16(arg_len);
721 offset += sizeof(*cslp) + arg_len;
722 }
723
724 free(lens);
725 clp->lines = cpu_to_le16(client->argc);
726 clp->client_type = __cpu_to_le16(client->type);
727 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
728 free(pdu);
729 return ret;
730}
731
732int fio_clients_connect(void)
733{
734 struct fio_client *client;
735 struct flist_head *entry, *tmp;
736 int ret;
737
738#ifdef WIN32
739 WSADATA wsd;
740 WSAStartup(MAKEWORD(2, 2), &wsd);
741#endif
742
743 dprint(FD_NET, "client: connect all\n");
744
745 client_signal_handler();
746
747 flist_for_each_safe(entry, tmp, &client_list) {
748 client = flist_entry(entry, struct fio_client, list);
749
750 ret = fio_client_connect(client);
751 if (ret) {
752 remove_client(client);
753 continue;
754 }
755
756 if (client->argc > 1)
757 send_client_cmd_line(client);
758 }
759
760 return !nr_clients;
761}
762
763int fio_start_client(struct fio_client *client)
764{
765 dprint(FD_NET, "client: start %s\n", client->hostname);
766 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
767}
768
769int fio_start_all_clients(void)
770{
771 struct fio_client *client;
772 struct flist_head *entry, *tmp;
773 int ret;
774
775 dprint(FD_NET, "client: start all\n");
776
777 fio_client_json_init();
778
779 flist_for_each_safe(entry, tmp, &client_list) {
780 client = flist_entry(entry, struct fio_client, list);
781
782 ret = fio_start_client(client);
783 if (ret) {
784 remove_client(client);
785 continue;
786 }
787 }
788
789 return flist_empty(&client_list);
790}
791
792static int __fio_client_send_remote_ini(struct fio_client *client,
793 const char *filename)
794{
795 struct cmd_load_file_pdu *pdu;
796 size_t p_size;
797 int ret;
798
799 dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
800
801 p_size = sizeof(*pdu) + strlen(filename) + 1;
802 pdu = calloc(1, p_size);
803 pdu->name_len = strlen(filename);
804 strcpy((char *) pdu->file, filename);
805 pdu->client_type = cpu_to_le16((uint16_t) client->type);
806
807 client->sent_job = true;
808 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
809 free(pdu);
810 return ret;
811}
812
813/*
814 * Send file contents to server backend. We could use sendfile(), but to remain
815 * more portable lets just read/write the darn thing.
816 */
817static int __fio_client_send_local_ini(struct fio_client *client,
818 const char *filename)
819{
820 struct cmd_job_pdu *pdu;
821 size_t p_size;
822 struct stat sb;
823 char *p;
824 void *buf;
825 off_t len;
826 int fd, ret;
827
828 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
829
830 fd = open(filename, O_RDONLY);
831 if (fd < 0) {
832 ret = -errno;
833 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
834 return ret;
835 }
836
837 if (fstat(fd, &sb) < 0) {
838 ret = -errno;
839 log_err("fio: job file stat: %s\n", strerror(errno));
840 close(fd);
841 return ret;
842 }
843
844 /*
845 * Add extra space for variable expansion, but doesn't guarantee.
846 */
847 sb.st_size += OPT_LEN_MAX;
848 p_size = sb.st_size + sizeof(*pdu);
849 pdu = malloc(p_size);
850 buf = pdu->buf;
851
852 len = sb.st_size;
853 p = buf;
854 if (read_ini_data(fd, p, len)) {
855 log_err("fio: failed reading job file %s\n", filename);
856 close(fd);
857 free(pdu);
858 return 1;
859 }
860
861 pdu->buf_len = __cpu_to_le32(sb.st_size);
862 pdu->client_type = cpu_to_le32(client->type);
863
864 client->sent_job = true;
865 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
866 free(pdu);
867 close(fd);
868 return ret;
869}
870
871int fio_client_send_ini(struct fio_client *client, const char *filename,
872 bool remote)
873{
874 int ret;
875
876 if (!remote)
877 ret = __fio_client_send_local_ini(client, filename);
878 else
879 ret = __fio_client_send_remote_ini(client, filename);
880
881 if (!ret)
882 client->sent_job = true;
883
884 return ret;
885}
886
887static int fio_client_send_cf(struct fio_client *client,
888 struct client_file *cf)
889{
890 return fio_client_send_ini(client, cf->file, cf->remote);
891}
892
893int fio_clients_send_ini(const char *filename)
894{
895 struct fio_client *client;
896 struct flist_head *entry, *tmp;
897
898 flist_for_each_safe(entry, tmp, &client_list) {
899 bool failed = false;
900
901 client = flist_entry(entry, struct fio_client, list);
902
903 if (client->nr_files) {
904 int i;
905
906 for (i = 0; i < client->nr_files; i++) {
907 struct client_file *cf;
908
909 cf = &client->files[i];
910
911 if (fio_client_send_cf(client, cf)) {
912 failed = true;
913 remove_client(client);
914 break;
915 }
916 }
917 }
918 if (client->sent_job || failed)
919 continue;
920 if (!filename || fio_client_send_ini(client, filename, 0))
921 remove_client(client);
922 }
923
924 return !nr_clients;
925}
926
927int fio_client_update_options(struct fio_client *client,
928 struct thread_options *o, uint64_t *tag)
929{
930 size_t cmd_sz = offsetof(struct cmd_add_job_pdu, top) +
931 thread_options_pack_size(o);
932 struct cmd_add_job_pdu *pdu;
933 int ret;
934
935 pdu = malloc(cmd_sz);
936 pdu->thread_number = cpu_to_le32(client->thread_number);
937 pdu->groupid = cpu_to_le32(client->groupid);
938 convert_thread_options_to_net(&pdu->top, o);
939
940 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, pdu,
941 cmd_sz, tag, &client->cmd_list);
942 free(pdu);
943 return ret;
944}
945
946static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
947{
948 dst->max_val = le64_to_cpu(src->max_val);
949 dst->min_val = le64_to_cpu(src->min_val);
950 dst->samples = le64_to_cpu(src->samples);
951
952 /*
953 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
954 */
955 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
956 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
957}
958
959static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
960{
961 int i, j, k;
962
963 dst->error = le32_to_cpu(src->error);
964 dst->thread_number = le32_to_cpu(src->thread_number);
965 dst->groupid = le32_to_cpu(src->groupid);
966 dst->job_start = le64_to_cpu(src->job_start);
967 dst->pid = le32_to_cpu(src->pid);
968 dst->members = le32_to_cpu(src->members);
969 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
970 dst->ioprio = le32_to_cpu(src->ioprio);
971 dst->disable_prio_stat = le32_to_cpu(src->disable_prio_stat);
972
973 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
974 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
975 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
976 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
977 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
978 convert_io_stat(&dst->iops_stat[i], &src->iops_stat[i]);
979 }
980 convert_io_stat(&dst->sync_stat, &src->sync_stat);
981
982 dst->usr_time = le64_to_cpu(src->usr_time);
983 dst->sys_time = le64_to_cpu(src->sys_time);
984 dst->ctx = le64_to_cpu(src->ctx);
985 dst->minf = le64_to_cpu(src->minf);
986 dst->majf = le64_to_cpu(src->majf);
987 dst->clat_percentiles = le32_to_cpu(src->clat_percentiles);
988 dst->lat_percentiles = le32_to_cpu(src->lat_percentiles);
989 dst->slat_percentiles = le32_to_cpu(src->slat_percentiles);
990 dst->percentile_precision = le64_to_cpu(src->percentile_precision);
991
992 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
993 fio_fp64_t *fps = &src->percentile_list[i];
994 fio_fp64_t *fpd = &dst->percentile_list[i];
995
996 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
997 }
998
999 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1000 dst->io_u_map[i] = le64_to_cpu(src->io_u_map[i]);
1001 dst->io_u_submit[i] = le64_to_cpu(src->io_u_submit[i]);
1002 dst->io_u_complete[i] = le64_to_cpu(src->io_u_complete[i]);
1003 }
1004
1005 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
1006 dst->io_u_lat_n[i] = le64_to_cpu(src->io_u_lat_n[i]);
1007 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1008 dst->io_u_lat_u[i] = le64_to_cpu(src->io_u_lat_u[i]);
1009 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1010 dst->io_u_lat_m[i] = le64_to_cpu(src->io_u_lat_m[i]);
1011
1012 for (i = 0; i < FIO_LAT_CNT; i++)
1013 for (j = 0; j < DDIR_RWDIR_CNT; j++)
1014 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
1015 dst->io_u_plat[i][j][k] = le64_to_cpu(src->io_u_plat[i][j][k]);
1016
1017 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1018 dst->io_u_sync_plat[j] = le64_to_cpu(src->io_u_sync_plat[j]);
1019
1020 for (i = 0; i < DDIR_RWDIR_SYNC_CNT; i++)
1021 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
1022
1023 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1024 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
1025 dst->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
1026 }
1027
1028 dst->total_submit = le64_to_cpu(src->total_submit);
1029 dst->total_complete = le64_to_cpu(src->total_complete);
1030 dst->nr_zone_resets = le64_to_cpu(src->nr_zone_resets);
1031
1032 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1033 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
1034 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
1035 }
1036
1037 dst->total_run_time = le64_to_cpu(src->total_run_time);
1038 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
1039 dst->total_err_count = le64_to_cpu(src->total_err_count);
1040 dst->first_error = le32_to_cpu(src->first_error);
1041 dst->kb_base = le32_to_cpu(src->kb_base);
1042 dst->unit_base = le32_to_cpu(src->unit_base);
1043
1044 dst->sig_figs = le32_to_cpu(src->sig_figs);
1045
1046 dst->latency_depth = le32_to_cpu(src->latency_depth);
1047 dst->latency_target = le64_to_cpu(src->latency_target);
1048 dst->latency_window = le64_to_cpu(src->latency_window);
1049 dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
1050
1051 dst->nr_block_infos = le64_to_cpu(src->nr_block_infos);
1052 for (i = 0; i < dst->nr_block_infos; i++)
1053 dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
1054
1055 dst->ss_dur = le64_to_cpu(src->ss_dur);
1056 dst->ss_state = le32_to_cpu(src->ss_state);
1057 dst->ss_head = le32_to_cpu(src->ss_head);
1058 dst->ss_limit.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_limit.u.i));
1059 dst->ss_slope.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_slope.u.i));
1060 dst->ss_deviation.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_deviation.u.i));
1061 dst->ss_criterion.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_criterion.u.i));
1062
1063 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1064 dst->nr_clat_prio[i] = le32_to_cpu(src->nr_clat_prio[i]);
1065 for (j = 0; j < dst->nr_clat_prio[i]; j++) {
1066 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
1067 dst->clat_prio[i][j].io_u_plat[k] =
1068 le64_to_cpu(src->clat_prio[i][j].io_u_plat[k]);
1069 convert_io_stat(&dst->clat_prio[i][j].clat_stat,
1070 &src->clat_prio[i][j].clat_stat);
1071 dst->clat_prio[i][j].ioprio =
1072 le32_to_cpu(dst->clat_prio[i][j].ioprio);
1073 }
1074 }
1075
1076 if (dst->ss_state & FIO_SS_DATA) {
1077 for (i = 0; i < dst->ss_dur; i++ ) {
1078 dst->ss_iops_data[i] = le64_to_cpu(src->ss_iops_data[i]);
1079 dst->ss_bw_data[i] = le64_to_cpu(src->ss_bw_data[i]);
1080 }
1081 }
1082
1083 dst->cachehit = le64_to_cpu(src->cachehit);
1084 dst->cachemiss = le64_to_cpu(src->cachemiss);
1085}
1086
1087static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1088{
1089 int i;
1090
1091 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1092 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
1093 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
1094 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
1095 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
1096 dst->iobytes[i] = le64_to_cpu(src->iobytes[i]);
1097 dst->agg[i] = le64_to_cpu(src->agg[i]);
1098 }
1099
1100 dst->kb_base = le32_to_cpu(src->kb_base);
1101 dst->unit_base = le32_to_cpu(src->unit_base);
1102 dst->sig_figs = le32_to_cpu(src->sig_figs);
1103 dst->groupid = le32_to_cpu(src->groupid);
1104 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
1105}
1106
1107static void json_object_add_client_info(struct json_object *obj,
1108 struct fio_client *client)
1109{
1110 const char *hostname = client->hostname ? client->hostname : "";
1111
1112 json_object_add_value_string(obj, "hostname", hostname);
1113 json_object_add_value_int(obj, "port", client->port);
1114}
1115
1116static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
1117{
1118 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1119 struct flist_head *opt_list = NULL;
1120 struct json_object *tsobj;
1121
1122 if (client->opt_lists && p->ts.thread_number <= client->jobs)
1123 opt_list = &client->opt_lists[p->ts.thread_number - 1];
1124
1125 tsobj = show_thread_status(&p->ts, &p->rs, opt_list, &client->buf);
1126 if (tsobj) {
1127 json_object_add_client_info(tsobj, client);
1128 json_array_add_value_object(clients_array, tsobj);
1129 if (!client->did_stat && client->global_opts)
1130 json_array_add_value_object(global_opt_array, client->global_opts);
1131 }
1132 client->did_stat = true;
1133
1134 if (sum_stat_clients <= 1)
1135 return;
1136
1137 sum_thread_stats(&client_ts, &p->ts);
1138 sum_group_stats(&client_gs, &p->rs);
1139
1140 if (!client_ts.members) {
1141 /* Arbitrarily use the percentile toggles and percentile list
1142 * from the first thread_stat that comes our way */
1143 client_ts.slat_percentiles = p->ts.slat_percentiles;
1144 client_ts.clat_percentiles = p->ts.clat_percentiles;
1145 client_ts.lat_percentiles = p->ts.lat_percentiles;
1146
1147 for (int i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++)
1148 client_ts.percentile_list[i] = p->ts.percentile_list[i];
1149 }
1150 client_ts.members++;
1151 client_ts.thread_number = p->ts.thread_number;
1152 client_ts.groupid = p->ts.groupid;
1153 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
1154 client_ts.sig_figs = p->ts.sig_figs;
1155
1156 if (++sum_stat_nr == sum_stat_clients) {
1157 strcpy(client_ts.name, "All clients");
1158 tsobj = show_thread_status(&client_ts, &client_gs, NULL, &allclients);
1159 if (tsobj) {
1160 json_object_add_client_info(tsobj, client);
1161 json_array_add_value_object(clients_array, tsobj);
1162 }
1163 }
1164}
1165
1166static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
1167{
1168 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1169
1170 if (output_format & FIO_OUTPUT_NORMAL)
1171 show_group_stats(gs, &client->buf);
1172}
1173
1174static void handle_job_opt(struct fio_client *client, struct fio_net_cmd *cmd)
1175{
1176 struct cmd_job_option *pdu = (struct cmd_job_option *) cmd->payload;
1177
1178 pdu->global = le16_to_cpu(pdu->global);
1179 pdu->truncated = le16_to_cpu(pdu->truncated);
1180 pdu->groupid = le32_to_cpu(pdu->groupid);
1181
1182 if (pdu->global) {
1183 struct json_object *global_opts;
1184
1185 if (!global_opt_object && !global_opt_array)
1186 return;
1187
1188 /*
1189 * If we have only one server connection, add it to the single
1190 * global option dictionary. When we have connections to
1191 * multiple servers, add the global option to the
1192 * server-specific dictionary.
1193 */
1194 if (global_opt_object) {
1195 global_opts = global_opt_object;
1196 } else {
1197 if (!client->global_opts) {
1198 client->global_opts = json_create_object();
1199 json_object_add_client_info(client->global_opts, client);
1200 }
1201 global_opts = client->global_opts;
1202 }
1203
1204 json_object_add_value_string(global_opts,
1205 (const char *)pdu->name,
1206 (const char *)pdu->value);
1207 return;
1208 } else if (client->opt_lists) {
1209 struct flist_head *opt_list = &client->opt_lists[pdu->groupid];
1210 struct print_option *p;
1211
1212 p = malloc(sizeof(*p));
1213 p->name = strdup((const char *)pdu->name);
1214 p->value = pdu->value[0] ? strdup((const char *)pdu->value) :
1215 NULL;
1216 flist_add_tail(&p->list, opt_list);
1217 }
1218}
1219
1220static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
1221{
1222 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1223 const char *buf = (const char *) pdu->buf;
1224 const char *name;
1225 int fio_unused ret;
1226 struct buf_output out;
1227
1228 buf_output_init(&out);
1229
1230 name = client->name ? client->name : client->hostname;
1231
1232 if (!client->skip_newline && !(output_format & FIO_OUTPUT_TERSE))
1233 __log_buf(&out, "<%s> ", name);
1234 __log_buf(&out, "%s", buf);
1235 log_info_buf(out.buf, out.buflen);
1236 buf_output_free(&out);
1237 client->skip_newline = strchr(buf, '\n') == NULL;
1238}
1239
1240static void convert_agg(struct disk_util_agg *agg)
1241{
1242 int i;
1243
1244 for (i = 0; i < 2; i++) {
1245 agg->ios[i] = le64_to_cpu(agg->ios[i]);
1246 agg->merges[i] = le64_to_cpu(agg->merges[i]);
1247 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
1248 agg->ticks[i] = le64_to_cpu(agg->ticks[i]);
1249 }
1250
1251 agg->io_ticks = le64_to_cpu(agg->io_ticks);
1252 agg->time_in_queue = le64_to_cpu(agg->time_in_queue);
1253 agg->slavecount = le32_to_cpu(agg->slavecount);
1254 agg->max_util.u.f = fio_uint64_to_double(le64_to_cpu(agg->max_util.u.i));
1255}
1256
1257static void convert_dus(struct disk_util_stat *dus)
1258{
1259 int i;
1260
1261 for (i = 0; i < 2; i++) {
1262 dus->s.ios[i] = le64_to_cpu(dus->s.ios[i]);
1263 dus->s.merges[i] = le64_to_cpu(dus->s.merges[i]);
1264 dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
1265 dus->s.ticks[i] = le64_to_cpu(dus->s.ticks[i]);
1266 }
1267
1268 dus->s.io_ticks = le64_to_cpu(dus->s.io_ticks);
1269 dus->s.time_in_queue = le64_to_cpu(dus->s.time_in_queue);
1270 dus->s.msec = le64_to_cpu(dus->s.msec);
1271}
1272
1273static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
1274{
1275 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1276
1277 if (!client->disk_stats_shown)
1278 client->disk_stats_shown = true;
1279
1280 if (output_format & FIO_OUTPUT_JSON) {
1281 struct json_object *duobj;
1282
1283 json_array_add_disk_util(&du->dus, &du->agg, du_array);
1284 duobj = json_array_last_value_object(du_array);
1285 json_object_add_client_info(duobj, client);
1286 }
1287 if (output_format & FIO_OUTPUT_NORMAL) {
1288 __log_buf(&client->buf, "\nDisk stats (read/write):\n");
1289 print_disk_util(&du->dus, &du->agg, 0, &client->buf);
1290 }
1291 if (output_format & FIO_OUTPUT_TERSE && terse_version >= 3) {
1292 print_disk_util(&du->dus, &du->agg, 1, &client->buf);
1293 __log_buf(&client->buf, "\n");
1294 }
1295}
1296
1297static void convert_jobs_eta(struct jobs_eta *je)
1298{
1299 int i;
1300
1301 je->nr_running = le32_to_cpu(je->nr_running);
1302 je->nr_ramp = le32_to_cpu(je->nr_ramp);
1303 je->nr_pending = le32_to_cpu(je->nr_pending);
1304 je->nr_setting_up = le32_to_cpu(je->nr_setting_up);
1305 je->files_open = le32_to_cpu(je->files_open);
1306
1307 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1308 je->m_rate[i] = le64_to_cpu(je->m_rate[i]);
1309 je->t_rate[i] = le64_to_cpu(je->t_rate[i]);
1310 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
1311 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
1312 je->rate[i] = le64_to_cpu(je->rate[i]);
1313 je->iops[i] = le32_to_cpu(je->iops[i]);
1314 }
1315
1316 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
1317 je->eta_sec = le64_to_cpu(je->eta_sec);
1318 je->nr_threads = le32_to_cpu(je->nr_threads);
1319 je->is_pow2 = le32_to_cpu(je->is_pow2);
1320 je->unit_base = le32_to_cpu(je->unit_base);
1321 je->sig_figs = le32_to_cpu(je->sig_figs);
1322}
1323
1324void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
1325{
1326 int i;
1327
1328 dst->nr_running += je->nr_running;
1329 dst->nr_ramp += je->nr_ramp;
1330 dst->nr_pending += je->nr_pending;
1331 dst->nr_setting_up += je->nr_setting_up;
1332 dst->files_open += je->files_open;
1333
1334 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1335 dst->m_rate[i] += je->m_rate[i];
1336 dst->t_rate[i] += je->t_rate[i];
1337 dst->m_iops[i] += je->m_iops[i];
1338 dst->t_iops[i] += je->t_iops[i];
1339 dst->rate[i] += je->rate[i];
1340 dst->iops[i] += je->iops[i];
1341 }
1342
1343 dst->elapsed_sec += je->elapsed_sec;
1344
1345 if (je->eta_sec > dst->eta_sec)
1346 dst->eta_sec = je->eta_sec;
1347
1348 dst->nr_threads += je->nr_threads;
1349
1350 /*
1351 * This wont be correct for multiple strings, but at least it
1352 * works for the basic cases.
1353 */
1354 strcpy((char *) dst->run_str, (char *) je->run_str);
1355}
1356
1357static bool remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
1358{
1359 struct fio_net_cmd_reply *reply = NULL;
1360 struct flist_head *entry;
1361
1362 flist_for_each(entry, &client->cmd_list) {
1363 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1364
1365 if (cmd->tag == (uintptr_t) reply)
1366 break;
1367
1368 reply = NULL;
1369 }
1370
1371 if (!reply) {
1372 log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
1373 return false;
1374 }
1375
1376 flist_del(&reply->list);
1377 cmd->tag = reply->saved_tag;
1378 free(reply);
1379 return true;
1380}
1381
1382int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
1383{
1384 do {
1385 struct fio_net_cmd_reply *reply = NULL;
1386 struct flist_head *entry;
1387
1388 flist_for_each(entry, &client->cmd_list) {
1389 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1390
1391 if (tag == (uintptr_t) reply)
1392 break;
1393
1394 reply = NULL;
1395 }
1396
1397 if (!reply)
1398 break;
1399
1400 usleep(1000);
1401 } while (1);
1402
1403 return 0;
1404}
1405
1406static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
1407{
1408 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1409 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
1410
1411 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
1412
1413 assert(client->eta_in_flight == eta);
1414
1415 client->eta_in_flight = NULL;
1416 flist_del_init(&client->eta_list);
1417 client->eta_timeouts = 0;
1418
1419 if (client->ops->jobs_eta)
1420 client->ops->jobs_eta(client, je);
1421
1422 fio_client_sum_jobs_eta(&eta->eta, je);
1423 fio_client_dec_jobs_eta(eta, client->ops->eta);
1424}
1425
1426static void client_flush_hist_samples(FILE *f, int hist_coarseness, void *samples,
1427 uint64_t sample_size)
1428{
1429 struct io_sample *s, *s_tmp;
1430 bool log_offset, log_issue_time;
1431 uint64_t i, j, nr_samples;
1432 struct io_u_plat_entry *entry;
1433 uint64_t *io_u_plat;
1434
1435 int stride = 1 << hist_coarseness;
1436
1437 if (!sample_size)
1438 return;
1439
1440 s = __get_sample(samples, 0, 0, 0);
1441 log_offset = (s->__ddir & LOG_OFFSET_SAMPLE_BIT) != 0;
1442 log_issue_time = (s->__ddir & LOG_ISSUE_TIME_SAMPLE_BIT) != 0;
1443
1444 nr_samples = sample_size / __log_entry_sz(log_offset, log_issue_time);
1445
1446 for (i = 0; i < nr_samples; i++) {
1447
1448 s_tmp = __get_sample(samples, log_offset, log_issue_time, i);
1449 s = (struct io_sample *)((char *)s_tmp +
1450 i * sizeof(struct io_u_plat_entry));
1451
1452 entry = s->data.plat_entry;
1453 io_u_plat = entry->io_u_plat;
1454
1455 fprintf(f, "%lu, %u, %llu, ", (unsigned long) s->time,
1456 io_sample_ddir(s), (unsigned long long) s->bs);
1457 for (j = 0; j < FIO_IO_U_PLAT_NR - stride; j += stride) {
1458 fprintf(f, "%llu, ", (unsigned long long)hist_sum(j, stride, io_u_plat, NULL));
1459 }
1460 fprintf(f, "%llu\n", (unsigned long long)
1461 hist_sum(FIO_IO_U_PLAT_NR - stride, stride, io_u_plat, NULL));
1462
1463 }
1464}
1465
1466static int fio_client_handle_iolog(struct fio_client *client,
1467 struct fio_net_cmd *cmd)
1468{
1469 struct cmd_iolog_pdu *pdu = NULL;
1470 bool store_direct;
1471 char *log_pathname = NULL;
1472 int ret = 0;
1473
1474 pdu = convert_iolog(cmd, &store_direct);
1475 if (!pdu) {
1476 log_err("fio: failed converting IO log\n");
1477 ret = 1;
1478 goto out;
1479 }
1480
1481 /* allocate buffer big enough for next sprintf() call */
1482 log_pathname = malloc(10 + strlen((char *)pdu->name) +
1483 strlen(client->hostname));
1484 if (!log_pathname) {
1485 log_err("fio: memory allocation of unique pathname failed\n");
1486 ret = -1;
1487 goto out;
1488 }
1489 /* generate a unique pathname for the log file using hostname */
1490 sprintf(log_pathname, "%s.%s", pdu->name, client->hostname);
1491
1492 if (store_direct) {
1493 ssize_t wrote;
1494 size_t sz;
1495 int fd, flags;
1496
1497 if (pdu->per_job_logs)
1498 flags = O_WRONLY | O_CREAT | O_TRUNC;
1499 else
1500 flags = O_WRONLY | O_CREAT | O_APPEND;
1501 fd = open((const char *) log_pathname, flags, 0644);
1502 if (fd < 0) {
1503 log_err("fio: open log %s: %s\n",
1504 log_pathname, strerror(errno));
1505 ret = 1;
1506 goto out;
1507 }
1508
1509 sz = cmd->pdu_len - sizeof(*pdu);
1510 wrote = write(fd, pdu->samples, sz);
1511 close(fd);
1512
1513 if (wrote != sz) {
1514 log_err("fio: short write on compressed log\n");
1515 ret = 1;
1516 goto out;
1517 }
1518
1519 ret = 0;
1520 } else {
1521 FILE *f;
1522 const char *mode;
1523
1524 if (pdu->per_job_logs)
1525 mode = "w";
1526 else
1527 mode = "a";
1528 f = fopen((const char *) log_pathname, mode);
1529 if (!f) {
1530 log_err("fio: fopen log %s : %s\n",
1531 log_pathname, strerror(errno));
1532 ret = 1;
1533 goto out;
1534 }
1535
1536 if (pdu->log_type == IO_LOG_TYPE_HIST) {
1537 client_flush_hist_samples(f, pdu->log_hist_coarseness, pdu->samples,
1538 pdu->nr_samples * sizeof(struct io_sample));
1539 } else {
1540 flush_samples(f, pdu->samples,
1541 pdu->nr_samples * sizeof(struct io_sample));
1542 }
1543 fclose(f);
1544 ret = 0;
1545 }
1546
1547out:
1548 if (pdu && pdu != (void *) cmd->payload)
1549 free(pdu);
1550
1551 if (log_pathname)
1552 free(log_pathname);
1553
1554 return ret;
1555}
1556
1557static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
1558{
1559 struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
1560 const char *os, *arch;
1561 char bit[16];
1562
1563 os = fio_get_os_string(probe->os);
1564 if (!os)
1565 os = "unknown";
1566
1567 arch = fio_get_arch_string(probe->arch);
1568 if (!arch)
1569 os = "unknown";
1570
1571 sprintf(bit, "%d-bit", probe->bpp * 8);
1572 probe->flags = le64_to_cpu(probe->flags);
1573
1574 if (output_format & FIO_OUTPUT_NORMAL) {
1575 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
1576 probe->hostname, probe->bigendian, bit, os, arch,
1577 probe->fio_version, (unsigned long) probe->flags);
1578 }
1579
1580 if (!client->name)
1581 client->name = strdup((char *) probe->hostname);
1582}
1583
1584static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
1585{
1586 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1587
1588 client->state = Client_started;
1589 client->jobs = le32_to_cpu(pdu->jobs);
1590 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
1591
1592 if (client->jobs) {
1593 int i;
1594
1595 if (client->opt_lists)
1596 free(client->opt_lists);
1597
1598 client->opt_lists = malloc(client->jobs * sizeof(struct flist_head));
1599 for (i = 0; i < client->jobs; i++)
1600 INIT_FLIST_HEAD(&client->opt_lists[i]);
1601 }
1602
1603 sum_stat_clients += client->nr_stat;
1604}
1605
1606static void handle_stop(struct fio_client *client)
1607{
1608 if (client->error)
1609 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
1610}
1611
1612static void convert_stop(struct fio_net_cmd *cmd)
1613{
1614 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1615
1616 pdu->error = le32_to_cpu(pdu->error);
1617}
1618
1619static void convert_text(struct fio_net_cmd *cmd)
1620{
1621 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1622
1623 pdu->level = le32_to_cpu(pdu->level);
1624 pdu->buf_len = le32_to_cpu(pdu->buf_len);
1625 pdu->log_sec = le64_to_cpu(pdu->log_sec);
1626 pdu->log_usec = le64_to_cpu(pdu->log_usec);
1627}
1628
1629static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
1630 struct cmd_iolog_pdu *pdu)
1631{
1632#ifdef CONFIG_ZLIB
1633 struct cmd_iolog_pdu *ret;
1634 z_stream stream;
1635 uint64_t nr_samples;
1636 size_t total;
1637 char *p;
1638 size_t log_entry_size;
1639
1640 stream.zalloc = Z_NULL;
1641 stream.zfree = Z_NULL;
1642 stream.opaque = Z_NULL;
1643 stream.avail_in = 0;
1644 stream.next_in = Z_NULL;
1645
1646 if (inflateInit(&stream) != Z_OK)
1647 return NULL;
1648
1649 /*
1650 * Get header first, it's not compressed
1651 */
1652 nr_samples = le64_to_cpu(pdu->nr_samples);
1653
1654 log_entry_size = __log_entry_sz(le32_to_cpu(pdu->log_offset),
1655 le32_to_cpu(pdu->log_issue_time));
1656 if (pdu->log_type == IO_LOG_TYPE_HIST)
1657 total = nr_samples * (log_entry_size +
1658 sizeof(struct io_u_plat_entry));
1659 else
1660 total = nr_samples * log_entry_size;
1661 ret = malloc(total + sizeof(*pdu));
1662 ret->nr_samples = nr_samples;
1663
1664 memcpy(ret, pdu, sizeof(*pdu));
1665
1666 p = (char *) ret + sizeof(*pdu);
1667
1668 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
1669 stream.next_in = (void *)((char *) pdu + sizeof(*pdu));
1670 while (stream.avail_in) {
1671 unsigned int this_chunk = 65536;
1672 unsigned int this_len;
1673 int err;
1674
1675 if (this_chunk > total)
1676 this_chunk = total;
1677
1678 stream.avail_out = this_chunk;
1679 stream.next_out = (void *)p;
1680 err = inflate(&stream, Z_NO_FLUSH);
1681 /* may be Z_OK, or Z_STREAM_END */
1682 if (err < 0) {
1683 /*
1684 * Z_STREAM_ERROR and Z_BUF_ERROR can safely be
1685 * ignored */
1686 if (err == Z_STREAM_ERROR || err == Z_BUF_ERROR)
1687 break;
1688 log_err("fio: inflate error %d\n", err);
1689 free(ret);
1690 ret = NULL;
1691 goto err;
1692 }
1693
1694 this_len = this_chunk - stream.avail_out;
1695 p += this_len;
1696 total -= this_len;
1697 }
1698
1699err:
1700 inflateEnd(&stream);
1701 return ret;
1702#else
1703 return NULL;
1704#endif
1705}
1706
1707/*
1708 * This has been compressed on the server side, since it can be big.
1709 * Uncompress here.
1710 */
1711static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
1712 bool *store_direct)
1713{
1714 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
1715 struct cmd_iolog_pdu *ret;
1716 uint64_t i;
1717 int compressed;
1718 void *samples;
1719
1720 *store_direct = false;
1721
1722 /*
1723 * Convert if compressed and we support it. If it's not
1724 * compressed, we need not do anything.
1725 */
1726 compressed = le32_to_cpu(pdu->compressed);
1727 if (compressed == XMIT_COMPRESSED) {
1728#ifndef CONFIG_ZLIB
1729 log_err("fio: server sent compressed data by mistake\n");
1730 return NULL;
1731#endif
1732 ret = convert_iolog_gz(cmd, pdu);
1733 if (!ret) {
1734 log_err("fio: failed decompressing log\n");
1735 return NULL;
1736 }
1737 } else if (compressed == STORE_COMPRESSED) {
1738 *store_direct = true;
1739 ret = pdu;
1740 } else
1741 ret = pdu;
1742
1743 ret->nr_samples = le64_to_cpu(ret->nr_samples);
1744 ret->thread_number = le32_to_cpu(ret->thread_number);
1745 ret->log_type = le32_to_cpu(ret->log_type);
1746 ret->compressed = le32_to_cpu(ret->compressed);
1747 ret->log_offset = le32_to_cpu(ret->log_offset);
1748 ret->log_prio = le32_to_cpu(ret->log_prio);
1749 ret->log_issue_time = le32_to_cpu(ret->log_issue_time);
1750 ret->log_hist_coarseness = le32_to_cpu(ret->log_hist_coarseness);
1751 ret->per_job_logs = le32_to_cpu(ret->per_job_logs);
1752
1753 if (*store_direct)
1754 return ret;
1755
1756 samples = &ret->samples[0];
1757 for (i = 0; i < ret->nr_samples; i++) {
1758 struct io_sample *s;
1759
1760 s = __get_sample(samples, ret->log_offset, ret->log_issue_time, i);
1761 if (ret->log_type == IO_LOG_TYPE_HIST)
1762 s = (struct io_sample *)((char *)s + sizeof(struct io_u_plat_entry) * i);
1763
1764 s->time = le64_to_cpu(s->time);
1765 if (ret->log_type != IO_LOG_TYPE_HIST) {
1766 s->data.val.val0 = le64_to_cpu(s->data.val.val0);
1767 s->data.val.val1 = le64_to_cpu(s->data.val.val1);
1768 }
1769 s->__ddir = __le32_to_cpu(s->__ddir);
1770 s->bs = le64_to_cpu(s->bs);
1771 s->priority = le16_to_cpu(s->priority);
1772
1773 if (ret->log_offset)
1774 s->aux[IOS_AUX_OFFSET_INDEX] =
1775 le64_to_cpu(s->aux[IOS_AUX_OFFSET_INDEX]);
1776
1777 if (ret->log_issue_time)
1778 s->aux[IOS_AUX_ISSUE_TIME_INDEX] =
1779 le64_to_cpu(s->aux[IOS_AUX_ISSUE_TIME_INDEX]);
1780
1781 if (ret->log_type == IO_LOG_TYPE_HIST) {
1782 s->data.plat_entry = (struct io_u_plat_entry *)(((char *)s) + sizeof(*s));
1783 s->data.plat_entry->list.next = NULL;
1784 s->data.plat_entry->list.prev = NULL;
1785 }
1786 }
1787
1788 return ret;
1789}
1790
1791static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
1792 size_t size, uint64_t tag)
1793{
1794 rep->error = cpu_to_le32(rep->error);
1795 fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
1796}
1797
1798static int fio_send_file(struct fio_client *client, struct cmd_sendfile *pdu,
1799 uint64_t tag)
1800{
1801 struct cmd_sendfile_reply *rep;
1802 struct stat sb;
1803 size_t size;
1804 int fd;
1805
1806 size = sizeof(*rep);
1807 rep = malloc(size);
1808
1809 if (stat((char *)pdu->path, &sb) < 0) {
1810fail:
1811 rep->error = errno;
1812 sendfile_reply(client->fd, rep, size, tag);
1813 free(rep);
1814 return 1;
1815 }
1816
1817 size += sb.st_size;
1818 rep = realloc(rep, size);
1819 rep->size = cpu_to_le32((uint32_t) sb.st_size);
1820
1821 fd = open((char *)pdu->path, O_RDONLY);
1822 if (fd == -1 )
1823 goto fail;
1824
1825 rep->error = read_data(fd, &rep->data, sb.st_size);
1826 sendfile_reply(client->fd, rep, size, tag);
1827 free(rep);
1828 close(fd);
1829 return 0;
1830}
1831
1832int fio_handle_client(struct fio_client *client)
1833{
1834 struct client_ops const *ops = client->ops;
1835 struct fio_net_cmd *cmd;
1836
1837 dprint(FD_NET, "client: handle %s\n", client->hostname);
1838
1839 cmd = fio_net_recv_cmd(client->fd, true);
1840 if (!cmd)
1841 return 0;
1842
1843 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1844 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
1845
1846 client->last_cmd = cmd->opcode;
1847
1848 switch (cmd->opcode) {
1849 case FIO_NET_CMD_QUIT:
1850 if (ops->quit)
1851 ops->quit(client, cmd);
1852 remove_client(client);
1853 break;
1854 case FIO_NET_CMD_TEXT:
1855 convert_text(cmd);
1856 ops->text(client, cmd);
1857 break;
1858 case FIO_NET_CMD_DU: {
1859 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1860
1861 convert_dus(&du->dus);
1862 convert_agg(&du->agg);
1863
1864 ops->disk_util(client, cmd);
1865 break;
1866 }
1867 case FIO_NET_CMD_TS: {
1868 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1869 uint64_t offset;
1870 int i;
1871
1872 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1873 if (le32_to_cpu(p->ts.nr_clat_prio[i])) {
1874 offset = le64_to_cpu(p->ts.clat_prio_offset[i]);
1875 p->ts.clat_prio[i] =
1876 (struct clat_prio_stat *)((char *)p + offset);
1877 }
1878 }
1879
1880 dprint(FD_NET, "client: ts->ss_state = %u\n", (unsigned int) le32_to_cpu(p->ts.ss_state));
1881 if (le32_to_cpu(p->ts.ss_state) & FIO_SS_DATA) {
1882 dprint(FD_NET, "client: received steadystate ring buffers\n");
1883
1884 offset = le64_to_cpu(p->ts.ss_iops_data_offset);
1885 p->ts.ss_iops_data = (uint64_t *)((char *)p + offset);
1886
1887 offset = le64_to_cpu(p->ts.ss_bw_data_offset);
1888 p->ts.ss_bw_data = (uint64_t *)((char *)p + offset);
1889 }
1890
1891 convert_ts(&p->ts, &p->ts);
1892 convert_gs(&p->rs, &p->rs);
1893
1894 ops->thread_status(client, cmd);
1895 break;
1896 }
1897 case FIO_NET_CMD_GS: {
1898 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1899
1900 convert_gs(gs, gs);
1901
1902 ops->group_stats(client, cmd);
1903 break;
1904 }
1905 case FIO_NET_CMD_ETA: {
1906 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1907
1908 if (!remove_reply_cmd(client, cmd))
1909 break;
1910 convert_jobs_eta(je);
1911 handle_eta(client, cmd);
1912 break;
1913 }
1914 case FIO_NET_CMD_PROBE:
1915 remove_reply_cmd(client, cmd);
1916 ops->probe(client, cmd);
1917 break;
1918 case FIO_NET_CMD_SERVER_START:
1919 client->state = Client_running;
1920 if (ops->job_start)
1921 ops->job_start(client, cmd);
1922 break;
1923 case FIO_NET_CMD_START: {
1924 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1925
1926 pdu->jobs = le32_to_cpu(pdu->jobs);
1927 ops->start(client, cmd);
1928 break;
1929 }
1930 case FIO_NET_CMD_STOP: {
1931 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1932
1933 convert_stop(cmd);
1934 client->state = Client_stopped;
1935 client->error = le32_to_cpu(pdu->error);
1936 client->signal = le32_to_cpu(pdu->signal);
1937 ops->stop(client);
1938 break;
1939 }
1940 case FIO_NET_CMD_ADD_JOB: {
1941 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1942
1943 client->thread_number = le32_to_cpu(pdu->thread_number);
1944 client->groupid = le32_to_cpu(pdu->groupid);
1945
1946 if (ops->add_job)
1947 ops->add_job(client, cmd);
1948 break;
1949 }
1950 case FIO_NET_CMD_IOLOG:
1951 fio_client_handle_iolog(client, cmd);
1952 break;
1953 case FIO_NET_CMD_UPDATE_JOB:
1954 ops->update_job(client, cmd);
1955 remove_reply_cmd(client, cmd);
1956 break;
1957 case FIO_NET_CMD_VTRIGGER: {
1958 struct all_io_list *pdu = (struct all_io_list *) cmd->payload;
1959 char buf[128];
1960 int off = 0;
1961
1962 if (aux_path) {
1963 strcpy(buf, aux_path);
1964 off = strlen(buf);
1965 }
1966
1967 __verify_save_state(pdu, server_name(client, &buf[off], sizeof(buf) - off));
1968 exec_trigger(trigger_cmd);
1969 break;
1970 }
1971 case FIO_NET_CMD_SENDFILE: {
1972 struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
1973 fio_send_file(client, pdu, cmd->tag);
1974 break;
1975 }
1976 case FIO_NET_CMD_JOB_OPT: {
1977 handle_job_opt(client, cmd);
1978 break;
1979 }
1980 default:
1981 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1982 break;
1983 }
1984
1985 free(cmd);
1986 return 1;
1987}
1988
1989int fio_clients_send_trigger(const char *cmd)
1990{
1991 struct flist_head *entry;
1992 struct fio_client *client;
1993 size_t slen;
1994
1995 dprint(FD_NET, "client: send vtrigger: %s\n", cmd);
1996
1997 if (!cmd)
1998 slen = 0;
1999 else
2000 slen = strlen(cmd);
2001
2002 flist_for_each(entry, &client_list) {
2003 struct cmd_vtrigger_pdu *pdu;
2004
2005 client = flist_entry(entry, struct fio_client, list);
2006
2007 pdu = malloc(sizeof(*pdu) + slen);
2008 pdu->len = cpu_to_le16((uint16_t) slen);
2009 if (slen)
2010 memcpy(pdu->cmd, cmd, slen);
2011 fio_net_send_cmd(client->fd, FIO_NET_CMD_VTRIGGER, pdu,
2012 sizeof(*pdu) + slen, NULL, NULL);
2013 free(pdu);
2014 }
2015
2016 return 0;
2017}
2018
2019static void request_client_etas(struct client_ops const *ops)
2020{
2021 struct fio_client *client;
2022 struct flist_head *entry;
2023 struct client_eta *eta;
2024 int skipped = 0;
2025
2026 if (eta_print == FIO_ETA_NEVER)
2027 return;
2028
2029 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
2030
2031 eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
2032 eta->pending = nr_clients;
2033
2034 flist_for_each(entry, &client_list) {
2035 client = flist_entry(entry, struct fio_client, list);
2036
2037 if (!flist_empty(&client->eta_list)) {
2038 skipped++;
2039 continue;
2040 }
2041 if (client->state != Client_running)
2042 continue;
2043
2044 assert(!client->eta_in_flight);
2045 flist_add_tail(&client->eta_list, &eta_list);
2046 client->eta_in_flight = eta;
2047 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
2048 (uintptr_t) eta, &client->cmd_list);
2049 }
2050
2051 while (skipped--) {
2052 if (!fio_client_dec_jobs_eta(eta, ops->eta))
2053 break;
2054 }
2055
2056 dprint(FD_NET, "client: requested eta tag %p\n", eta);
2057}
2058
2059/*
2060 * A single SEND_ETA timeout isn't fatal. Attempt to recover.
2061 */
2062static int handle_cmd_timeout(struct fio_client *client,
2063 struct fio_net_cmd_reply *reply)
2064{
2065 uint16_t reply_opcode = reply->opcode;
2066
2067 flist_del(&reply->list);
2068 free(reply);
2069
2070 if (reply_opcode != FIO_NET_CMD_SEND_ETA)
2071 return 1;
2072
2073 log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
2074
2075 flist_del_init(&client->eta_list);
2076 if (client->eta_in_flight) {
2077 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
2078 client->eta_in_flight = NULL;
2079 }
2080
2081 /*
2082 * If we fail 5 in a row, give up...
2083 */
2084 if (client->eta_timeouts++ > 5)
2085 return 1;
2086
2087 return 0;
2088}
2089
2090static int client_check_cmd_timeout(struct fio_client *client,
2091 struct timespec *now)
2092{
2093 struct fio_net_cmd_reply *reply;
2094 struct flist_head *entry, *tmp;
2095 int ret = 0;
2096
2097 flist_for_each_safe(entry, tmp, &client->cmd_list) {
2098 unsigned int op;
2099
2100 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
2101
2102 if (mtime_since(&reply->ts, now) < FIO_NET_CLIENT_TIMEOUT)
2103 continue;
2104
2105 op = reply->opcode;
2106 if (!handle_cmd_timeout(client, reply))
2107 continue;
2108
2109 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
2110 fio_server_op(op));
2111 ret = 1;
2112 }
2113
2114 return flist_empty(&client->cmd_list) && ret;
2115}
2116
2117static int fio_check_clients_timed_out(void)
2118{
2119 struct fio_client *client;
2120 struct flist_head *entry, *tmp;
2121 struct timespec ts;
2122 int ret = 0;
2123
2124 fio_gettime(&ts, NULL);
2125
2126 flist_for_each_safe(entry, tmp, &client_list) {
2127 client = flist_entry(entry, struct fio_client, list);
2128
2129 if (flist_empty(&client->cmd_list))
2130 continue;
2131
2132 if (!client_check_cmd_timeout(client, &ts))
2133 continue;
2134
2135 if (client->ops->timed_out)
2136 client->ops->timed_out(client);
2137 else
2138 log_err("fio: client %s timed out\n", client->hostname);
2139
2140 if (client->last_cmd != FIO_NET_CMD_VTRIGGER)
2141 client->error = ETIMEDOUT;
2142 else
2143 log_info("fio: ignoring timeout due to vtrigger\n");
2144 remove_client(client);
2145 ret = 1;
2146 }
2147
2148 return ret;
2149}
2150
2151int fio_handle_clients(struct client_ops const *ops)
2152{
2153 struct pollfd *pfds;
2154 int i, ret = 0, retval = 0;
2155
2156 fio_gettime(&eta_ts, NULL);
2157
2158 pfds = malloc(nr_clients * sizeof(struct pollfd));
2159
2160 init_thread_stat(&client_ts);
2161 init_group_run_stat(&client_gs);
2162
2163 while (!exit_backend && nr_clients) {
2164 struct flist_head *entry, *tmp;
2165 struct fio_client *client;
2166
2167 i = 0;
2168 flist_for_each_safe(entry, tmp, &client_list) {
2169 client = flist_entry(entry, struct fio_client, list);
2170
2171 if (!client->sent_job && !client->ops->stay_connected &&
2172 flist_empty(&client->cmd_list)) {
2173 remove_client(client);
2174 continue;
2175 }
2176
2177 pfds[i].fd = client->fd;
2178 pfds[i].events = POLLIN;
2179 i++;
2180 }
2181
2182 if (!nr_clients)
2183 break;
2184
2185 assert(i == nr_clients);
2186
2187 do {
2188 struct timespec ts;
2189 int timeout;
2190
2191 fio_gettime(&ts, NULL);
2192 if (eta_time_within_slack(mtime_since(&eta_ts, &ts))) {
2193 request_client_etas(ops);
2194 memcpy(&eta_ts, &ts, sizeof(ts));
2195
2196 if (fio_check_clients_timed_out())
2197 break;
2198 }
2199
2200 check_trigger_file();
2201
2202 timeout = min(100u, ops->eta_msec);
2203
2204 ret = poll(pfds, nr_clients, timeout);
2205 if (ret < 0) {
2206 if (errno == EINTR)
2207 continue;
2208 log_err("fio: poll clients: %s\n", strerror(errno));
2209 break;
2210 } else if (!ret)
2211 continue;
2212 } while (ret <= 0);
2213
2214 for (i = 0; i < nr_clients; i++) {
2215 if (!(pfds[i].revents & POLLIN))
2216 continue;
2217
2218 client = find_client_by_fd(pfds[i].fd);
2219 if (!client) {
2220 log_err("fio: unknown client fd %ld\n", (long) pfds[i].fd);
2221 continue;
2222 }
2223 if (!fio_handle_client(client)) {
2224 log_info("client: host=%s disconnected\n",
2225 client->hostname);
2226 remove_client(client);
2227 retval = 1;
2228 } else if (client->error)
2229 retval = 1;
2230 fio_put_client(client);
2231 }
2232 }
2233
2234 log_info_buf(allclients.buf, allclients.buflen);
2235 buf_output_free(&allclients);
2236
2237 fio_client_json_fini();
2238
2239 free_clat_prio_stats(&client_ts);
2240 free(pfds);
2241 return retval || error_clients;
2242}
2243
2244static void client_display_thread_status(struct jobs_eta *je)
2245{
2246 if (!(output_format & FIO_OUTPUT_JSON))
2247 display_thread_status(je);
2248}
fio - Flexible IO Tester