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