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client: partial revert of 9899aff3e345
[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
27static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
28static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
29static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
30static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
31static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
32static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
33static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
34
35struct client_ops fio_client_ops = {
36 .text = handle_text,
37 .disk_util = handle_du,
38 .thread_status = handle_ts,
39 .group_stats = handle_gs,
40 .stop = handle_stop,
41 .start = handle_start,
42 .eta = display_thread_status,
43 .probe = handle_probe,
44 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
45 .client_type = FIO_CLIENT_TYPE_CLI,
46};
47
48static struct timeval eta_tv;
49
50static FLIST_HEAD(client_list);
51static FLIST_HEAD(eta_list);
52
53static FLIST_HEAD(arg_list);
54
55struct thread_stat client_ts;
56struct group_run_stats client_gs;
57int sum_stat_clients;
58
59static int sum_stat_nr;
60static struct json_object *root = NULL;
61static struct json_array *clients_array = NULL;
62static struct json_array *du_array = NULL;
63
64#define FIO_CLIENT_HASH_BITS 7
65#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
66#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
67static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
68
69static void fio_client_add_hash(struct fio_client *client)
70{
71 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
72
73 bucket &= FIO_CLIENT_HASH_MASK;
74 flist_add(&client->hash_list, &client_hash[bucket]);
75}
76
77static void fio_client_remove_hash(struct fio_client *client)
78{
79 if (!flist_empty(&client->hash_list))
80 flist_del_init(&client->hash_list);
81}
82
83static void fio_init fio_client_hash_init(void)
84{
85 int i;
86
87 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
88 INIT_FLIST_HEAD(&client_hash[i]);
89}
90
91static void fio_client_json_init(void)
92{
93 if (output_format != FIO_OUTPUT_JSON)
94 return;
95 root = json_create_object();
96 json_object_add_value_string(root, "fio version", fio_version_string);
97 clients_array = json_create_array();
98 json_object_add_value_array(root, "client_stats", clients_array);
99 du_array = json_create_array();
100 json_object_add_value_array(root, "disk_util", du_array);
101}
102
103static void fio_client_json_fini(void)
104{
105 if (output_format != FIO_OUTPUT_JSON)
106 return;
107 json_print_object(root);
108 log_info("\n");
109 json_free_object(root);
110 root = NULL;
111 clients_array = NULL;
112 du_array = NULL;
113}
114
115static struct fio_client *find_client_by_fd(int fd)
116{
117 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
118 struct fio_client *client;
119 struct flist_head *entry;
120
121 flist_for_each(entry, &client_hash[bucket]) {
122 client = flist_entry(entry, struct fio_client, hash_list);
123
124 if (client->fd == fd) {
125 client->refs++;
126 return client;
127 }
128 }
129
130 return NULL;
131}
132
133void fio_put_client(struct fio_client *client)
134{
135 if (--client->refs)
136 return;
137
138 free(client->hostname);
139 if (client->argv)
140 free(client->argv);
141 if (client->name)
142 free(client->name);
143 while (client->nr_files) {
144 struct client_file *cf = &client->files[--client->nr_files];
145
146 free(cf->file);
147 }
148 if (client->files)
149 free(client->files);
150
151 if (!client->did_stat)
152 sum_stat_clients--;
153
154 free(client);
155}
156
157static void remove_client(struct fio_client *client)
158{
159 assert(client->refs);
160
161 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
162
163 if (!flist_empty(&client->list))
164 flist_del_init(&client->list);
165
166 fio_client_remove_hash(client);
167
168 if (!flist_empty(&client->eta_list)) {
169 flist_del_init(&client->eta_list);
170 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
171 }
172
173 close(client->fd);
174 client->fd = -1;
175
176 if (client->ops->removed)
177 client->ops->removed(client);
178
179 nr_clients--;
180 fio_put_client(client);
181}
182
183struct fio_client *fio_get_client(struct fio_client *client)
184{
185 client->refs++;
186 return client;
187}
188
189static void __fio_client_add_cmd_option(struct fio_client *client,
190 const char *opt)
191{
192 int index;
193
194 index = client->argc++;
195 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
196 client->argv[index] = strdup(opt);
197 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
198}
199
200void fio_client_add_cmd_option(void *cookie, const char *opt)
201{
202 struct fio_client *client = cookie;
203 struct flist_head *entry;
204
205 if (!client || !opt)
206 return;
207
208 __fio_client_add_cmd_option(client, opt);
209
210 /*
211 * Duplicate arguments to shared client group
212 */
213 flist_for_each(entry, &arg_list) {
214 client = flist_entry(entry, struct fio_client, arg_list);
215
216 __fio_client_add_cmd_option(client, opt);
217 }
218}
219
220struct fio_client *fio_client_add_explicit(struct client_ops *ops,
221 const char *hostname, int type,
222 int port)
223{
224 struct fio_client *client;
225
226 client = malloc(sizeof(*client));
227 memset(client, 0, sizeof(*client));
228
229 INIT_FLIST_HEAD(&client->list);
230 INIT_FLIST_HEAD(&client->hash_list);
231 INIT_FLIST_HEAD(&client->arg_list);
232 INIT_FLIST_HEAD(&client->eta_list);
233 INIT_FLIST_HEAD(&client->cmd_list);
234
235 client->hostname = strdup(hostname);
236
237 if (type == Fio_client_socket)
238 client->is_sock = 1;
239 else {
240 int ipv6;
241
242 ipv6 = type == Fio_client_ipv6;
243 if (fio_server_parse_host(hostname, ipv6,
244 &client->addr.sin_addr,
245 &client->addr6.sin6_addr))
246 goto err;
247
248 client->port = port;
249 }
250
251 client->fd = -1;
252 client->ops = ops;
253 client->refs = 1;
254 client->type = ops->client_type;
255
256 __fio_client_add_cmd_option(client, "fio");
257
258 flist_add(&client->list, &client_list);
259 nr_clients++;
260 dprint(FD_NET, "client: added <%s>\n", client->hostname);
261 return client;
262err:
263 free(client);
264 return NULL;
265}
266
267int fio_client_add_ini_file(void *cookie, const char *ini_file, int remote)
268{
269 struct fio_client *client = cookie;
270 struct client_file *cf;
271 size_t new_size;
272 void *new_files;
273
274 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
275
276 new_size = (client->nr_files + 1) * sizeof(struct client_file);
277 new_files = realloc(client->files, new_size);
278 if (!new_files)
279 return 1;
280
281 client->files = new_files;
282 cf = &client->files[client->nr_files];
283 cf->file = strdup(ini_file);
284 cf->remote = remote;
285 client->nr_files++;
286 return 0;
287}
288
289int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
290{
291 struct fio_client *existing = *cookie;
292 struct fio_client *client;
293
294 if (existing) {
295 /*
296 * We always add our "exec" name as the option, hence 1
297 * means empty.
298 */
299 if (existing->argc == 1)
300 flist_add_tail(&existing->arg_list, &arg_list);
301 else {
302 while (!flist_empty(&arg_list))
303 flist_del_init(arg_list.next);
304 }
305 }
306
307 client = malloc(sizeof(*client));
308 memset(client, 0, sizeof(*client));
309
310 INIT_FLIST_HEAD(&client->list);
311 INIT_FLIST_HEAD(&client->hash_list);
312 INIT_FLIST_HEAD(&client->arg_list);
313 INIT_FLIST_HEAD(&client->eta_list);
314 INIT_FLIST_HEAD(&client->cmd_list);
315
316 if (fio_server_parse_string(hostname, &client->hostname,
317 &client->is_sock, &client->port,
318 &client->addr.sin_addr,
319 &client->addr6.sin6_addr,
320 &client->ipv6))
321 return -1;
322
323 client->fd = -1;
324 client->ops = ops;
325 client->refs = 1;
326 client->type = ops->client_type;
327
328 __fio_client_add_cmd_option(client, "fio");
329
330 flist_add(&client->list, &client_list);
331 nr_clients++;
332 dprint(FD_NET, "client: added <%s>\n", client->hostname);
333 *cookie = client;
334 return 0;
335}
336
337static void probe_client(struct fio_client *client)
338{
339 struct cmd_client_probe_pdu pdu;
340 uint64_t tag;
341
342 dprint(FD_NET, "client: send probe\n");
343
344#ifdef CONFIG_ZLIB
345 pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
346#else
347 pdu.flags = 0;
348#endif
349
350 fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
351}
352
353static int fio_client_connect_ip(struct fio_client *client)
354{
355 struct sockaddr *addr;
356 socklen_t socklen;
357 int fd, domain;
358
359 if (client->ipv6) {
360 client->addr6.sin6_family = AF_INET6;
361 client->addr6.sin6_port = htons(client->port);
362 domain = AF_INET6;
363 addr = (struct sockaddr *) &client->addr6;
364 socklen = sizeof(client->addr6);
365 } else {
366 client->addr.sin_family = AF_INET;
367 client->addr.sin_port = htons(client->port);
368 domain = AF_INET;
369 addr = (struct sockaddr *) &client->addr;
370 socklen = sizeof(client->addr);
371 }
372
373 fd = socket(domain, SOCK_STREAM, 0);
374 if (fd < 0) {
375 int ret = -errno;
376
377 log_err("fio: socket: %s\n", strerror(errno));
378 return ret;
379 }
380
381 if (connect(fd, addr, socklen) < 0) {
382 int ret = -errno;
383
384 log_err("fio: connect: %s\n", strerror(errno));
385 log_err("fio: failed to connect to %s:%u\n", client->hostname,
386 client->port);
387 close(fd);
388 return ret;
389 }
390
391 return fd;
392}
393
394static int fio_client_connect_sock(struct fio_client *client)
395{
396 struct sockaddr_un *addr = &client->addr_un;
397 socklen_t len;
398 int fd;
399
400 memset(addr, 0, sizeof(*addr));
401 addr->sun_family = AF_UNIX;
402 strncpy(addr->sun_path, client->hostname, sizeof(addr->sun_path) - 1);
403
404 fd = socket(AF_UNIX, SOCK_STREAM, 0);
405 if (fd < 0) {
406 int ret = -errno;
407
408 log_err("fio: socket: %s\n", strerror(errno));
409 return ret;
410 }
411
412 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
413 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
414 int ret = -errno;
415
416 log_err("fio: connect; %s\n", strerror(errno));
417 close(fd);
418 return ret;
419 }
420
421 return fd;
422}
423
424int fio_client_connect(struct fio_client *client)
425{
426 int fd;
427
428 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
429
430 if (client->is_sock)
431 fd = fio_client_connect_sock(client);
432 else
433 fd = fio_client_connect_ip(client);
434
435 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
436
437 if (fd < 0)
438 return fd;
439
440 client->fd = fd;
441 fio_client_add_hash(client);
442 client->state = Client_connected;
443
444 probe_client(client);
445 return 0;
446}
447
448int fio_client_terminate(struct fio_client *client)
449{
450 return fio_net_send_quit(client->fd);
451}
452
453void fio_clients_terminate(void)
454{
455 struct flist_head *entry;
456 struct fio_client *client;
457
458 dprint(FD_NET, "client: terminate clients\n");
459
460 flist_for_each(entry, &client_list) {
461 client = flist_entry(entry, struct fio_client, list);
462 fio_client_terminate(client);
463 }
464}
465
466static void sig_int(int sig)
467{
468 dprint(FD_NET, "client: got signal %d\n", sig);
469 fio_clients_terminate();
470}
471
472static void sig_show_status(int sig)
473{
474 show_running_run_stats();
475}
476
477static void client_signal_handler(void)
478{
479 struct sigaction act;
480
481 memset(&act, 0, sizeof(act));
482 act.sa_handler = sig_int;
483 act.sa_flags = SA_RESTART;
484 sigaction(SIGINT, &act, NULL);
485
486 memset(&act, 0, sizeof(act));
487 act.sa_handler = sig_int;
488 act.sa_flags = SA_RESTART;
489 sigaction(SIGTERM, &act, NULL);
490
491/* Windows uses SIGBREAK as a quit signal from other applications */
492#ifdef WIN32
493 memset(&act, 0, sizeof(act));
494 act.sa_handler = sig_int;
495 act.sa_flags = SA_RESTART;
496 sigaction(SIGBREAK, &act, NULL);
497#endif
498
499 memset(&act, 0, sizeof(act));
500 act.sa_handler = sig_show_status;
501 act.sa_flags = SA_RESTART;
502 sigaction(SIGUSR1, &act, NULL);
503}
504
505static int send_client_cmd_line(struct fio_client *client)
506{
507 struct cmd_single_line_pdu *cslp;
508 struct cmd_line_pdu *clp;
509 unsigned long offset;
510 unsigned int *lens;
511 void *pdu;
512 size_t mem;
513 int i, ret;
514
515 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
516
517 lens = malloc(client->argc * sizeof(unsigned int));
518
519 /*
520 * Find out how much mem we need
521 */
522 for (i = 0, mem = 0; i < client->argc; i++) {
523 lens[i] = strlen(client->argv[i]) + 1;
524 mem += lens[i];
525 }
526
527 /*
528 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
529 */
530 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
531
532 pdu = malloc(mem);
533 clp = pdu;
534 offset = sizeof(*clp);
535
536 for (i = 0; i < client->argc; i++) {
537 uint16_t arg_len = lens[i];
538
539 cslp = pdu + offset;
540 strcpy((char *) cslp->text, client->argv[i]);
541 cslp->len = cpu_to_le16(arg_len);
542 offset += sizeof(*cslp) + arg_len;
543 }
544
545 free(lens);
546 clp->lines = cpu_to_le16(client->argc);
547 clp->client_type = __cpu_to_le16(client->type);
548 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
549 free(pdu);
550 return ret;
551}
552
553int fio_clients_connect(void)
554{
555 struct fio_client *client;
556 struct flist_head *entry, *tmp;
557 int ret;
558
559#ifdef WIN32
560 WSADATA wsd;
561 WSAStartup(MAKEWORD(2, 2), &wsd);
562#endif
563
564 dprint(FD_NET, "client: connect all\n");
565
566 client_signal_handler();
567
568 flist_for_each_safe(entry, tmp, &client_list) {
569 client = flist_entry(entry, struct fio_client, list);
570
571 ret = fio_client_connect(client);
572 if (ret) {
573 remove_client(client);
574 continue;
575 }
576
577 if (client->argc > 1)
578 send_client_cmd_line(client);
579 }
580
581 return !nr_clients;
582}
583
584int fio_start_client(struct fio_client *client)
585{
586 dprint(FD_NET, "client: start %s\n", client->hostname);
587 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
588}
589
590int fio_start_all_clients(void)
591{
592 struct fio_client *client;
593 struct flist_head *entry, *tmp;
594 int ret;
595
596 dprint(FD_NET, "client: start all\n");
597
598 fio_client_json_init();
599
600 flist_for_each_safe(entry, tmp, &client_list) {
601 client = flist_entry(entry, struct fio_client, list);
602
603 ret = fio_start_client(client);
604 if (ret) {
605 remove_client(client);
606 continue;
607 }
608 }
609
610 return flist_empty(&client_list);
611}
612
613static int __fio_client_send_remote_ini(struct fio_client *client,
614 const char *filename)
615{
616 struct cmd_load_file_pdu *pdu;
617 size_t p_size;
618 int ret;
619
620 dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
621
622 p_size = sizeof(*pdu) + strlen(filename) + 1;
623 pdu = malloc(p_size);
624 memset(pdu, 0, p_size);
625 pdu->name_len = strlen(filename);
626 strcpy((char *) pdu->file, filename);
627 pdu->client_type = cpu_to_le16((uint16_t) client->type);
628
629 client->sent_job = 1;
630 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
631 free(pdu);
632 return ret;
633}
634
635/*
636 * Send file contents to server backend. We could use sendfile(), but to remain
637 * more portable lets just read/write the darn thing.
638 */
639static int __fio_client_send_local_ini(struct fio_client *client,
640 const char *filename)
641{
642 struct cmd_job_pdu *pdu;
643 size_t p_size;
644 struct stat sb;
645 char *p;
646 void *buf;
647 off_t len;
648 int fd, ret;
649
650 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
651
652 fd = open(filename, O_RDONLY);
653 if (fd < 0) {
654 int ret = -errno;
655
656 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
657 return ret;
658 }
659
660 if (fstat(fd, &sb) < 0) {
661 int ret = -errno;
662
663 log_err("fio: job file stat: %s\n", strerror(errno));
664 close(fd);
665 return ret;
666 }
667
668 p_size = sb.st_size + sizeof(*pdu);
669 pdu = malloc(p_size);
670 buf = pdu->buf;
671
672 len = sb.st_size;
673 p = buf;
674 do {
675 ret = read(fd, p, len);
676 if (ret > 0) {
677 len -= ret;
678 if (!len)
679 break;
680 p += ret;
681 continue;
682 } else if (!ret)
683 break;
684 else if (errno == EAGAIN || errno == EINTR)
685 continue;
686 } while (1);
687
688 if (len) {
689 log_err("fio: failed reading job file %s\n", filename);
690 close(fd);
691 free(pdu);
692 return 1;
693 }
694
695 pdu->buf_len = __cpu_to_le32(sb.st_size);
696 pdu->client_type = cpu_to_le32(client->type);
697
698 client->sent_job = 1;
699 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
700 free(pdu);
701 close(fd);
702 return ret;
703}
704
705int fio_client_send_ini(struct fio_client *client, const char *filename,
706 int remote)
707{
708 int ret;
709
710 if (!remote)
711 ret = __fio_client_send_local_ini(client, filename);
712 else
713 ret = __fio_client_send_remote_ini(client, filename);
714
715 if (!ret)
716 client->sent_job = 1;
717
718 return ret;
719}
720
721static int fio_client_send_cf(struct fio_client *client,
722 struct client_file *cf)
723{
724 return fio_client_send_ini(client, cf->file, cf->remote);
725}
726
727int fio_clients_send_ini(const char *filename)
728{
729 struct fio_client *client;
730 struct flist_head *entry, *tmp;
731
732 flist_for_each_safe(entry, tmp, &client_list) {
733 client = flist_entry(entry, struct fio_client, list);
734
735 if (client->nr_files) {
736 int i;
737
738 for (i = 0; i < client->nr_files; i++) {
739 struct client_file *cf;
740
741 cf = &client->files[i];
742
743 if (fio_client_send_cf(client, cf)) {
744 remove_client(client);
745 break;
746 }
747 }
748 }
749 if (client->sent_job)
750 continue;
751 if (!filename || fio_client_send_ini(client, filename, 0))
752 remove_client(client);
753 }
754
755 return !nr_clients;
756}
757
758int fio_client_update_options(struct fio_client *client,
759 struct thread_options *o, uint64_t *tag)
760{
761 struct cmd_add_job_pdu pdu;
762
763 pdu.thread_number = cpu_to_le32(client->thread_number);
764 pdu.groupid = cpu_to_le32(client->groupid);
765 convert_thread_options_to_net(&pdu.top, o);
766
767 return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
768}
769
770static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
771{
772 dst->max_val = le64_to_cpu(src->max_val);
773 dst->min_val = le64_to_cpu(src->min_val);
774 dst->samples = le64_to_cpu(src->samples);
775
776 /*
777 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
778 */
779 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
780 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
781}
782
783static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
784{
785 int i, j;
786
787 dst->error = le32_to_cpu(src->error);
788 dst->thread_number = le32_to_cpu(src->thread_number);
789 dst->groupid = le32_to_cpu(src->groupid);
790 dst->pid = le32_to_cpu(src->pid);
791 dst->members = le32_to_cpu(src->members);
792 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
793
794 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
795 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
796 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
797 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
798 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
799 }
800
801 dst->usr_time = le64_to_cpu(src->usr_time);
802 dst->sys_time = le64_to_cpu(src->sys_time);
803 dst->ctx = le64_to_cpu(src->ctx);
804 dst->minf = le64_to_cpu(src->minf);
805 dst->majf = le64_to_cpu(src->majf);
806 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
807
808 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
809 fio_fp64_t *fps = &src->percentile_list[i];
810 fio_fp64_t *fpd = &dst->percentile_list[i];
811
812 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
813 }
814
815 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
816 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
817 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
818 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
819 }
820
821 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
822 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
823 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
824 }
825
826 for (i = 0; i < DDIR_RWDIR_CNT; i++)
827 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
828 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
829
830 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
831 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
832 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
833 dst->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
834 }
835
836 dst->total_submit = le64_to_cpu(src->total_submit);
837 dst->total_complete = le64_to_cpu(src->total_complete);
838
839 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
840 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
841 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
842 }
843
844 dst->total_run_time = le64_to_cpu(src->total_run_time);
845 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
846 dst->total_err_count = le64_to_cpu(src->total_err_count);
847 dst->first_error = le32_to_cpu(src->first_error);
848 dst->kb_base = le32_to_cpu(src->kb_base);
849 dst->unit_base = le32_to_cpu(src->unit_base);
850
851 dst->latency_depth = le32_to_cpu(src->latency_depth);
852 dst->latency_target = le64_to_cpu(src->latency_target);
853 dst->latency_window = le64_to_cpu(src->latency_window);
854 dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
855}
856
857static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
858{
859 int i;
860
861 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
862 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
863 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
864 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
865 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
866 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
867 dst->agg[i] = le64_to_cpu(src->agg[i]);
868 }
869
870 dst->kb_base = le32_to_cpu(src->kb_base);
871 dst->unit_base = le32_to_cpu(src->unit_base);
872 dst->groupid = le32_to_cpu(src->groupid);
873 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
874}
875
876static void json_object_add_client_info(struct json_object *obj,
877 struct fio_client *client)
878{
879 const char *hostname = client->hostname ? client->hostname : "";
880
881 json_object_add_value_string(obj, "hostname", hostname);
882 json_object_add_value_int(obj, "port", client->port);
883}
884
885static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
886{
887 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
888 struct json_object *tsobj;
889
890 tsobj = show_thread_status(&p->ts, &p->rs);
891 client->did_stat = 1;
892 if (tsobj) {
893 json_object_add_client_info(tsobj, client);
894 json_array_add_value_object(clients_array, tsobj);
895 }
896
897 if (sum_stat_clients <= 1)
898 return;
899
900 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
901 sum_group_stats(&client_gs, &p->rs);
902
903 client_ts.members++;
904 client_ts.thread_number = p->ts.thread_number;
905 client_ts.groupid = p->ts.groupid;
906 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
907
908 if (++sum_stat_nr == sum_stat_clients) {
909 strcpy(client_ts.name, "All clients");
910 tsobj = show_thread_status(&client_ts, &client_gs);
911 if (tsobj) {
912 json_object_add_client_info(tsobj, client);
913 json_array_add_value_object(clients_array, tsobj);
914 }
915 }
916}
917
918static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
919{
920 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
921
922 show_group_stats(gs);
923}
924
925static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
926{
927 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
928 const char *buf = (const char *) pdu->buf;
929 const char *name;
930 int fio_unused ret;
931
932 name = client->name ? client->name : client->hostname;
933
934 if (!client->skip_newline)
935 fprintf(f_out, "<%s> ", name);
936 ret = fwrite(buf, pdu->buf_len, 1, f_out);
937 fflush(f_out);
938 client->skip_newline = strchr(buf, '\n') == NULL;
939}
940
941static void convert_agg(struct disk_util_agg *agg)
942{
943 int i;
944
945 for (i = 0; i < 2; i++) {
946 agg->ios[i] = le32_to_cpu(agg->ios[i]);
947 agg->merges[i] = le32_to_cpu(agg->merges[i]);
948 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
949 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
950 }
951
952 agg->io_ticks = le32_to_cpu(agg->io_ticks);
953 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
954 agg->slavecount = le32_to_cpu(agg->slavecount);
955 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
956}
957
958static void convert_dus(struct disk_util_stat *dus)
959{
960 int i;
961
962 for (i = 0; i < 2; i++) {
963 dus->s.ios[i] = le32_to_cpu(dus->s.ios[i]);
964 dus->s.merges[i] = le32_to_cpu(dus->s.merges[i]);
965 dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
966 dus->s.ticks[i] = le32_to_cpu(dus->s.ticks[i]);
967 }
968
969 dus->s.io_ticks = le32_to_cpu(dus->s.io_ticks);
970 dus->s.time_in_queue = le32_to_cpu(dus->s.time_in_queue);
971 dus->s.msec = le64_to_cpu(dus->s.msec);
972}
973
974static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
975{
976 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
977
978 if (!client->disk_stats_shown) {
979 client->disk_stats_shown = 1;
980 log_info("\nDisk stats (read/write):\n");
981 }
982
983 if (output_format == FIO_OUTPUT_JSON) {
984 struct json_object *duobj;
985 json_array_add_disk_util(&du->dus, &du->agg, du_array);
986 duobj = json_array_last_value_object(du_array);
987 json_object_add_client_info(duobj, client);
988 } else
989 print_disk_util(&du->dus, &du->agg, output_format == FIO_OUTPUT_TERSE);
990}
991
992static void convert_jobs_eta(struct jobs_eta *je)
993{
994 int i;
995
996 je->nr_running = le32_to_cpu(je->nr_running);
997 je->nr_ramp = le32_to_cpu(je->nr_ramp);
998 je->nr_pending = le32_to_cpu(je->nr_pending);
999 je->nr_setting_up = le32_to_cpu(je->nr_setting_up);
1000 je->files_open = le32_to_cpu(je->files_open);
1001
1002 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1003 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
1004 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
1005 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
1006 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
1007 je->rate[i] = le32_to_cpu(je->rate[i]);
1008 je->iops[i] = le32_to_cpu(je->iops[i]);
1009 }
1010
1011 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
1012 je->eta_sec = le64_to_cpu(je->eta_sec);
1013 je->nr_threads = le32_to_cpu(je->nr_threads);
1014 je->is_pow2 = le32_to_cpu(je->is_pow2);
1015 je->unit_base = le32_to_cpu(je->unit_base);
1016}
1017
1018void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
1019{
1020 int i;
1021
1022 dst->nr_running += je->nr_running;
1023 dst->nr_ramp += je->nr_ramp;
1024 dst->nr_pending += je->nr_pending;
1025 dst->nr_setting_up += je->nr_setting_up;
1026 dst->files_open += je->files_open;
1027
1028 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1029 dst->m_rate[i] += je->m_rate[i];
1030 dst->t_rate[i] += je->t_rate[i];
1031 dst->m_iops[i] += je->m_iops[i];
1032 dst->t_iops[i] += je->t_iops[i];
1033 dst->rate[i] += je->rate[i];
1034 dst->iops[i] += je->iops[i];
1035 }
1036
1037 dst->elapsed_sec += je->elapsed_sec;
1038
1039 if (je->eta_sec > dst->eta_sec)
1040 dst->eta_sec = je->eta_sec;
1041
1042 dst->nr_threads += je->nr_threads;
1043
1044 /*
1045 * This wont be correct for multiple strings, but at least it
1046 * works for the basic cases.
1047 */
1048 strcpy((char *) dst->run_str, (char *) je->run_str);
1049}
1050
1051void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
1052{
1053 if (!--eta->pending) {
1054 eta_fn(&eta->eta);
1055 free(eta);
1056 }
1057}
1058
1059static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
1060{
1061 struct fio_net_cmd_reply *reply = NULL;
1062 struct flist_head *entry;
1063
1064 flist_for_each(entry, &client->cmd_list) {
1065 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1066
1067 if (cmd->tag == (uintptr_t) reply)
1068 break;
1069
1070 reply = NULL;
1071 }
1072
1073 if (!reply) {
1074 log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
1075 return;
1076 }
1077
1078 flist_del(&reply->list);
1079 cmd->tag = reply->saved_tag;
1080 free(reply);
1081}
1082
1083int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
1084{
1085 do {
1086 struct fio_net_cmd_reply *reply = NULL;
1087 struct flist_head *entry;
1088
1089 flist_for_each(entry, &client->cmd_list) {
1090 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1091
1092 if (tag == (uintptr_t) reply)
1093 break;
1094
1095 reply = NULL;
1096 }
1097
1098 if (!reply)
1099 break;
1100
1101 usleep(1000);
1102 } while (1);
1103
1104 return 0;
1105}
1106
1107static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
1108{
1109 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1110 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
1111
1112 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
1113
1114 assert(client->eta_in_flight == eta);
1115
1116 client->eta_in_flight = NULL;
1117 flist_del_init(&client->eta_list);
1118
1119 if (client->ops->jobs_eta)
1120 client->ops->jobs_eta(client, je);
1121
1122 fio_client_sum_jobs_eta(&eta->eta, je);
1123 fio_client_dec_jobs_eta(eta, client->ops->eta);
1124}
1125
1126static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
1127{
1128 struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
1129 const char *os, *arch;
1130 char bit[16];
1131
1132 os = fio_get_os_string(probe->os);
1133 if (!os)
1134 os = "unknown";
1135
1136 arch = fio_get_arch_string(probe->arch);
1137 if (!arch)
1138 os = "unknown";
1139
1140 sprintf(bit, "%d-bit", probe->bpp * 8);
1141 probe->flags = le64_to_cpu(probe->flags);
1142
1143 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
1144 probe->hostname, probe->bigendian, bit, os, arch,
1145 probe->fio_version, (unsigned long) probe->flags);
1146
1147 if (!client->name)
1148 client->name = strdup((char *) probe->hostname);
1149}
1150
1151static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
1152{
1153 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1154
1155 client->state = Client_started;
1156 client->jobs = le32_to_cpu(pdu->jobs);
1157 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
1158
1159 sum_stat_clients += client->nr_stat;
1160}
1161
1162static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
1163{
1164 if (client->error)
1165 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
1166}
1167
1168static void convert_stop(struct fio_net_cmd *cmd)
1169{
1170 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1171
1172 pdu->error = le32_to_cpu(pdu->error);
1173}
1174
1175static void convert_text(struct fio_net_cmd *cmd)
1176{
1177 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1178
1179 pdu->level = le32_to_cpu(pdu->level);
1180 pdu->buf_len = le32_to_cpu(pdu->buf_len);
1181 pdu->log_sec = le64_to_cpu(pdu->log_sec);
1182 pdu->log_usec = le64_to_cpu(pdu->log_usec);
1183}
1184
1185static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
1186 struct cmd_iolog_pdu *pdu)
1187{
1188#ifdef CONFIG_ZLIB
1189 struct cmd_iolog_pdu *ret;
1190 z_stream stream;
1191 uint32_t nr_samples;
1192 size_t total;
1193 void *p;
1194
1195 stream.zalloc = Z_NULL;
1196 stream.zfree = Z_NULL;
1197 stream.opaque = Z_NULL;
1198 stream.avail_in = 0;
1199 stream.next_in = Z_NULL;
1200
1201 if (inflateInit(&stream) != Z_OK)
1202 return NULL;
1203
1204 /*
1205 * Get header first, it's not compressed
1206 */
1207 nr_samples = le64_to_cpu(pdu->nr_samples);
1208
1209 total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
1210 ret = malloc(total + sizeof(*pdu));
1211 ret->nr_samples = nr_samples;
1212
1213 memcpy(ret, pdu, sizeof(*pdu));
1214
1215 p = (void *) ret + sizeof(*pdu);
1216
1217 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
1218 stream.next_in = (void *) pdu + sizeof(*pdu);
1219 while (stream.avail_in) {
1220 unsigned int this_chunk = 65536;
1221 unsigned int this_len;
1222 int err;
1223
1224 if (this_chunk > total)
1225 this_chunk = total;
1226
1227 stream.avail_out = this_chunk;
1228 stream.next_out = p;
1229 err = inflate(&stream, Z_NO_FLUSH);
1230 /* may be Z_OK, or Z_STREAM_END */
1231 if (err < 0) {
1232 log_err("fio: inflate error %d\n", err);
1233 free(ret);
1234 ret = NULL;
1235 goto err;
1236 }
1237
1238 this_len = this_chunk - stream.avail_out;
1239 p += this_len;
1240 total -= this_len;
1241 }
1242
1243err:
1244 inflateEnd(&stream);
1245 return ret;
1246#else
1247 return NULL;
1248#endif
1249}
1250
1251/*
1252 * This has been compressed on the server side, since it can be big.
1253 * Uncompress here.
1254 */
1255static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
1256{
1257 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
1258 struct cmd_iolog_pdu *ret;
1259 uint64_t i;
1260 void *samples;
1261
1262 /*
1263 * Convert if compressed and we support it. If it's not
1264 * compressed, we need not do anything.
1265 */
1266 if (le32_to_cpu(pdu->compressed)) {
1267#ifndef CONFIG_ZLIB
1268 log_err("fio: server sent compressed data by mistake\n");
1269 return NULL;
1270#endif
1271 ret = convert_iolog_gz(cmd, pdu);
1272 if (!ret) {
1273 log_err("fio: failed decompressing log\n");
1274 return NULL;
1275 }
1276 } else
1277 ret = pdu;
1278
1279 ret->nr_samples = le64_to_cpu(ret->nr_samples);
1280 ret->thread_number = le32_to_cpu(ret->thread_number);
1281 ret->log_type = le32_to_cpu(ret->log_type);
1282 ret->compressed = le32_to_cpu(ret->compressed);
1283 ret->log_offset = le32_to_cpu(ret->log_offset);
1284
1285 samples = &ret->samples[0];
1286 for (i = 0; i < ret->nr_samples; i++) {
1287 struct io_sample *s;
1288
1289 s = __get_sample(samples, ret->log_offset, i);
1290 s->time = le64_to_cpu(s->time);
1291 s->val = le64_to_cpu(s->val);
1292 s->__ddir = le32_to_cpu(s->__ddir);
1293 s->bs = le32_to_cpu(s->bs);
1294
1295 if (ret->log_offset) {
1296 struct io_sample_offset *so = (void *) s;
1297
1298 so->offset = le64_to_cpu(so->offset);
1299 }
1300 }
1301
1302 return ret;
1303}
1304
1305int fio_handle_client(struct fio_client *client)
1306{
1307 struct client_ops *ops = client->ops;
1308 struct fio_net_cmd *cmd;
1309
1310 dprint(FD_NET, "client: handle %s\n", client->hostname);
1311
1312 cmd = fio_net_recv_cmd(client->fd);
1313 if (!cmd)
1314 return 0;
1315
1316 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1317 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
1318
1319 switch (cmd->opcode) {
1320 case FIO_NET_CMD_QUIT:
1321 if (ops->quit)
1322 ops->quit(client, cmd);
1323 remove_client(client);
1324 free(cmd);
1325 break;
1326 case FIO_NET_CMD_TEXT:
1327 convert_text(cmd);
1328 ops->text(client, cmd);
1329 free(cmd);
1330 break;
1331 case FIO_NET_CMD_DU: {
1332 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1333
1334 convert_dus(&du->dus);
1335 convert_agg(&du->agg);
1336
1337 ops->disk_util(client, cmd);
1338 free(cmd);
1339 break;
1340 }
1341 case FIO_NET_CMD_TS: {
1342 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1343
1344 convert_ts(&p->ts, &p->ts);
1345 convert_gs(&p->rs, &p->rs);
1346
1347 ops->thread_status(client, cmd);
1348 free(cmd);
1349 break;
1350 }
1351 case FIO_NET_CMD_GS: {
1352 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1353
1354 convert_gs(gs, gs);
1355
1356 ops->group_stats(client, cmd);
1357 free(cmd);
1358 break;
1359 }
1360 case FIO_NET_CMD_ETA: {
1361 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1362
1363 remove_reply_cmd(client, cmd);
1364 convert_jobs_eta(je);
1365 handle_eta(client, cmd);
1366 free(cmd);
1367 break;
1368 }
1369 case FIO_NET_CMD_PROBE:
1370 remove_reply_cmd(client, cmd);
1371 ops->probe(client, cmd);
1372 free(cmd);
1373 break;
1374 case FIO_NET_CMD_SERVER_START:
1375 client->state = Client_running;
1376 if (ops->job_start)
1377 ops->job_start(client, cmd);
1378 free(cmd);
1379 break;
1380 case FIO_NET_CMD_START: {
1381 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1382
1383 pdu->jobs = le32_to_cpu(pdu->jobs);
1384 ops->start(client, cmd);
1385 free(cmd);
1386 break;
1387 }
1388 case FIO_NET_CMD_STOP: {
1389 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1390
1391 convert_stop(cmd);
1392 client->state = Client_stopped;
1393 client->error = le32_to_cpu(pdu->error);
1394 client->signal = le32_to_cpu(pdu->signal);
1395 ops->stop(client, cmd);
1396 free(cmd);
1397 break;
1398 }
1399 case FIO_NET_CMD_ADD_JOB: {
1400 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1401
1402 client->thread_number = le32_to_cpu(pdu->thread_number);
1403 client->groupid = le32_to_cpu(pdu->groupid);
1404
1405 if (ops->add_job)
1406 ops->add_job(client, cmd);
1407 free(cmd);
1408 break;
1409 }
1410 case FIO_NET_CMD_IOLOG:
1411 if (ops->iolog) {
1412 struct cmd_iolog_pdu *pdu;
1413
1414 pdu = convert_iolog(cmd);
1415 ops->iolog(client, pdu);
1416 }
1417 free(cmd);
1418 break;
1419 case FIO_NET_CMD_UPDATE_JOB:
1420 ops->update_job(client, cmd);
1421 remove_reply_cmd(client, cmd);
1422 free(cmd);
1423 break;
1424 default:
1425 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1426 free(cmd);
1427 break;
1428 }
1429
1430 return 1;
1431}
1432
1433static void request_client_etas(struct client_ops *ops)
1434{
1435 struct fio_client *client;
1436 struct flist_head *entry;
1437 struct client_eta *eta;
1438 int skipped = 0;
1439
1440 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1441
1442 eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
1443 eta->pending = nr_clients;
1444
1445 flist_for_each(entry, &client_list) {
1446 client = flist_entry(entry, struct fio_client, list);
1447
1448 if (!flist_empty(&client->eta_list)) {
1449 skipped++;
1450 continue;
1451 }
1452 if (client->state != Client_running)
1453 continue;
1454
1455 assert(!client->eta_in_flight);
1456 flist_add_tail(&client->eta_list, &eta_list);
1457 client->eta_in_flight = eta;
1458 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1459 (uintptr_t) eta, &client->cmd_list);
1460 }
1461
1462 while (skipped--)
1463 fio_client_dec_jobs_eta(eta, ops->eta);
1464
1465 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1466}
1467
1468static int client_check_cmd_timeout(struct fio_client *client,
1469 struct timeval *now)
1470{
1471 struct fio_net_cmd_reply *reply;
1472 struct flist_head *entry, *tmp;
1473 int ret = 0;
1474
1475 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1476 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1477
1478 if (mtime_since(&reply->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1479 continue;
1480
1481 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1482 fio_server_op(reply->opcode));
1483 flist_del(&reply->list);
1484 free(reply);
1485 ret = 1;
1486 }
1487
1488 return flist_empty(&client->cmd_list) && ret;
1489}
1490
1491static int fio_check_clients_timed_out(void)
1492{
1493 struct fio_client *client;
1494 struct flist_head *entry, *tmp;
1495 struct timeval tv;
1496 int ret = 0;
1497
1498 fio_gettime(&tv, NULL);
1499
1500 flist_for_each_safe(entry, tmp, &client_list) {
1501 client = flist_entry(entry, struct fio_client, list);
1502
1503 if (flist_empty(&client->cmd_list))
1504 continue;
1505
1506 if (!client_check_cmd_timeout(client, &tv))
1507 continue;
1508
1509 if (client->ops->timed_out)
1510 client->ops->timed_out(client);
1511 else
1512 log_err("fio: client %s timed out\n", client->hostname);
1513
1514 remove_client(client);
1515 ret = 1;
1516 }
1517
1518 return ret;
1519}
1520
1521int fio_handle_clients(struct client_ops *ops)
1522{
1523 struct pollfd *pfds;
1524 int i, ret = 0, retval = 0;
1525
1526 fio_gettime(&eta_tv, NULL);
1527
1528 pfds = malloc(nr_clients * sizeof(struct pollfd));
1529
1530 init_thread_stat(&client_ts);
1531 init_group_run_stat(&client_gs);
1532
1533 while (!exit_backend && nr_clients) {
1534 struct flist_head *entry, *tmp;
1535 struct fio_client *client;
1536
1537 i = 0;
1538 flist_for_each_safe(entry, tmp, &client_list) {
1539 client = flist_entry(entry, struct fio_client, list);
1540
1541 if (!client->sent_job && !client->ops->stay_connected &&
1542 flist_empty(&client->cmd_list)) {
1543 remove_client(client);
1544 continue;
1545 }
1546
1547 pfds[i].fd = client->fd;
1548 pfds[i].events = POLLIN;
1549 i++;
1550 }
1551
1552 if (!nr_clients)
1553 break;
1554
1555 assert(i == nr_clients);
1556
1557 do {
1558 struct timeval tv;
1559
1560 fio_gettime(&tv, NULL);
1561 if (mtime_since(&eta_tv, &tv) >= 900) {
1562 request_client_etas(ops);
1563 memcpy(&eta_tv, &tv, sizeof(tv));
1564
1565 if (fio_check_clients_timed_out())
1566 break;
1567 }
1568
1569 ret = poll(pfds, nr_clients, ops->eta_msec);
1570 if (ret < 0) {
1571 if (errno == EINTR)
1572 continue;
1573 log_err("fio: poll clients: %s\n", strerror(errno));
1574 break;
1575 } else if (!ret)
1576 continue;
1577 } while (ret <= 0);
1578
1579 for (i = 0; i < nr_clients; i++) {
1580 if (!(pfds[i].revents & POLLIN))
1581 continue;
1582
1583 client = find_client_by_fd(pfds[i].fd);
1584 if (!client) {
1585 log_err("fio: unknown client fd %ld\n", (long) pfds[i].fd);
1586 continue;
1587 }
1588 if (!fio_handle_client(client)) {
1589 log_info("client: host=%s disconnected\n",
1590 client->hostname);
1591 remove_client(client);
1592 retval = 1;
1593 } else if (client->error)
1594 retval = 1;
1595 fio_put_client(client);
1596 }
1597 }
1598
1599 fio_client_json_fini();
1600
1601 free(pfds);
1602 return retval;
1603}
fio - Flexible IO Tester