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Convert net commands in the generic command handler
[fio.git] / client.c
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CommitLineData
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
18#include "fio.h"
19#include "client.h"
20#include "server.h"
21#include "flist.h"
22#include "hash.h"
23
24static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
25static void handle_ts(struct fio_net_cmd *cmd);
26static void handle_gs(struct fio_net_cmd *cmd);
27static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd);
28static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
29static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
30
31struct client_ops fio_client_ops = {
32 .text_op = handle_text,
33 .disk_util = handle_du,
34 .thread_status = handle_ts,
35 .group_stats = handle_gs,
36 .eta = handle_eta,
37 .probe = handle_probe,
38};
39
40static struct timeval eta_tv;
41
42enum {
43 Client_created = 0,
44 Client_connected = 1,
45 Client_started = 2,
46 Client_running = 3,
47 Client_stopped = 4,
48 Client_exited = 5,
49};
50
51static FLIST_HEAD(client_list);
52static FLIST_HEAD(eta_list);
53
54static FLIST_HEAD(arg_list);
55
56static struct thread_stat client_ts;
57static struct group_run_stats client_gs;
58static int sum_stat_clients;
59static int sum_stat_nr;
60
61#define FIO_CLIENT_HASH_BITS 7
62#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
63#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
64static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
65
66static void fio_client_add_hash(struct fio_client *client)
67{
68 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
69
70 bucket &= FIO_CLIENT_HASH_MASK;
71 flist_add(&client->hash_list, &client_hash[bucket]);
72}
73
74static void fio_client_remove_hash(struct fio_client *client)
75{
76 if (!flist_empty(&client->hash_list))
77 flist_del_init(&client->hash_list);
78}
79
80static void fio_init fio_client_hash_init(void)
81{
82 int i;
83
84 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
85 INIT_FLIST_HEAD(&client_hash[i]);
86}
87
88static struct fio_client *find_client_by_fd(int fd)
89{
90 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
91 struct fio_client *client;
92 struct flist_head *entry;
93
94 flist_for_each(entry, &client_hash[bucket]) {
95 client = flist_entry(entry, struct fio_client, hash_list);
96
97 if (client->fd == fd)
98 return client;
99 }
100
101 return NULL;
102}
103
104static void remove_client(struct fio_client *client)
105{
106 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
107 flist_del(&client->list);
108
109 fio_client_remove_hash(client);
110
111 if (!flist_empty(&client->eta_list)) {
112 flist_del_init(&client->eta_list);
113 fio_client_dec_jobs_eta(client->eta_in_flight, display_thread_status);
114 }
115
116 free(client->hostname);
117 if (client->argv)
118 free(client->argv);
119 if (client->name)
120 free(client->name);
121
122 free(client);
123 nr_clients--;
124 sum_stat_clients--;
125}
126
127static void __fio_client_add_cmd_option(struct fio_client *client,
128 const char *opt)
129{
130 int index;
131
132 index = client->argc++;
133 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
134 client->argv[index] = strdup(opt);
135 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
136}
137
138void fio_client_add_cmd_option(void *cookie, const char *opt)
139{
140 struct fio_client *client = cookie;
141 struct flist_head *entry;
142
143 if (!client || !opt)
144 return;
145
146 __fio_client_add_cmd_option(client, opt);
147
148 /*
149 * Duplicate arguments to shared client group
150 */
151 flist_for_each(entry, &arg_list) {
152 client = flist_entry(entry, struct fio_client, arg_list);
153
154 __fio_client_add_cmd_option(client, opt);
155 }
156}
157
158struct fio_client *fio_client_add_explicit(const char *hostname, int type,
159 int port)
160{
161 struct fio_client *client;
162
163 client = malloc(sizeof(*client));
164 memset(client, 0, sizeof(*client));
165
166 INIT_FLIST_HEAD(&client->list);
167 INIT_FLIST_HEAD(&client->hash_list);
168 INIT_FLIST_HEAD(&client->arg_list);
169 INIT_FLIST_HEAD(&client->eta_list);
170 INIT_FLIST_HEAD(&client->cmd_list);
171
172 client->hostname = strdup(hostname);
173
174 if (type == Fio_client_socket)
175 client->is_sock = 1;
176 else {
177 int ipv6;
178
179 ipv6 = type == Fio_client_ipv6;
180 if (fio_server_parse_host(hostname, &ipv6,
181 &client->addr.sin_addr,
182 &client->addr6.sin6_addr))
183 goto err;
184
185 client->port = port;
186 }
187
188 client->fd = -1;
189
190 __fio_client_add_cmd_option(client, "fio");
191
192 flist_add(&client->list, &client_list);
193 nr_clients++;
194 dprint(FD_NET, "client: added <%s>\n", client->hostname);
195 return client;
196err:
197 free(client);
198 return NULL;
199}
200
201int fio_client_add(const char *hostname, void **cookie)
202{
203 struct fio_client *existing = *cookie;
204 struct fio_client *client;
205
206 if (existing) {
207 /*
208 * We always add our "exec" name as the option, hence 1
209 * means empty.
210 */
211 if (existing->argc == 1)
212 flist_add_tail(&existing->arg_list, &arg_list);
213 else {
214 while (!flist_empty(&arg_list))
215 flist_del_init(arg_list.next);
216 }
217 }
218
219 client = malloc(sizeof(*client));
220 memset(client, 0, sizeof(*client));
221
222 INIT_FLIST_HEAD(&client->list);
223 INIT_FLIST_HEAD(&client->hash_list);
224 INIT_FLIST_HEAD(&client->arg_list);
225 INIT_FLIST_HEAD(&client->eta_list);
226 INIT_FLIST_HEAD(&client->cmd_list);
227
228 if (fio_server_parse_string(hostname, &client->hostname,
229 &client->is_sock, &client->port,
230 &client->addr.sin_addr,
231 &client->addr6.sin6_addr,
232 &client->ipv6))
233 return -1;
234
235 client->fd = -1;
236
237 __fio_client_add_cmd_option(client, "fio");
238
239 flist_add(&client->list, &client_list);
240 nr_clients++;
241 dprint(FD_NET, "client: added <%s>\n", client->hostname);
242 *cookie = client;
243 return 0;
244}
245
246static int fio_client_connect_ip(struct fio_client *client)
247{
248 struct sockaddr *addr;
249 fio_socklen_t socklen;
250 int fd, domain;
251
252 if (client->ipv6) {
253 client->addr6.sin6_family = AF_INET6;
254 client->addr6.sin6_port = htons(client->port);
255 domain = AF_INET6;
256 addr = (struct sockaddr *) &client->addr6;
257 socklen = sizeof(client->addr6);
258 } else {
259 client->addr.sin_family = AF_INET;
260 client->addr.sin_port = htons(client->port);
261 domain = AF_INET;
262 addr = (struct sockaddr *) &client->addr;
263 socklen = sizeof(client->addr);
264 }
265
266 fd = socket(domain, SOCK_STREAM, 0);
267 if (fd < 0) {
268 log_err("fio: socket: %s\n", strerror(errno));
269 return -1;
270 }
271
272 if (connect(fd, addr, socklen) < 0) {
273 log_err("fio: connect: %s\n", strerror(errno));
274 log_err("fio: failed to connect to %s:%u\n", client->hostname,
275 client->port);
276 close(fd);
277 return -1;
278 }
279
280 return fd;
281}
282
283static int fio_client_connect_sock(struct fio_client *client)
284{
285 struct sockaddr_un *addr = &client->addr_un;
286 fio_socklen_t len;
287 int fd;
288
289 memset(addr, 0, sizeof(*addr));
290 addr->sun_family = AF_UNIX;
291 strcpy(addr->sun_path, client->hostname);
292
293 fd = socket(AF_UNIX, SOCK_STREAM, 0);
294 if (fd < 0) {
295 log_err("fio: socket: %s\n", strerror(errno));
296 return -1;
297 }
298
299 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
300 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
301 log_err("fio: connect; %s\n", strerror(errno));
302 close(fd);
303 return -1;
304 }
305
306 return fd;
307}
308
309static int fio_client_connect(struct fio_client *client)
310{
311 int fd;
312
313 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
314
315 if (client->is_sock)
316 fd = fio_client_connect_sock(client);
317 else
318 fd = fio_client_connect_ip(client);
319
320 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
321
322 if (fd < 0)
323 return 1;
324
325 client->fd = fd;
326 fio_client_add_hash(client);
327 client->state = Client_connected;
328 return 0;
329}
330
331void fio_clients_terminate(void)
332{
333 struct flist_head *entry;
334 struct fio_client *client;
335
336 dprint(FD_NET, "client: terminate clients\n");
337
338 flist_for_each(entry, &client_list) {
339 client = flist_entry(entry, struct fio_client, list);
340
341 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
342 }
343}
344
345static void sig_int(int sig)
346{
347 dprint(FD_NET, "client: got signal %d\n", sig);
348 fio_clients_terminate();
349}
350
351static void client_signal_handler(void)
352{
353 struct sigaction act;
354
355 memset(&act, 0, sizeof(act));
356 act.sa_handler = sig_int;
357 act.sa_flags = SA_RESTART;
358 sigaction(SIGINT, &act, NULL);
359
360 memset(&act, 0, sizeof(act));
361 act.sa_handler = sig_int;
362 act.sa_flags = SA_RESTART;
363 sigaction(SIGTERM, &act, NULL);
364}
365
366static void probe_client(struct fio_client *client)
367{
368 dprint(FD_NET, "client: send probe\n");
369
370 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
371}
372
373static int send_client_cmd_line(struct fio_client *client)
374{
375 struct cmd_single_line_pdu *cslp;
376 struct cmd_line_pdu *clp;
377 unsigned long offset;
378 unsigned int *lens;
379 void *pdu;
380 size_t mem;
381 int i, ret;
382
383 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
384
385 lens = malloc(client->argc * sizeof(unsigned int));
386
387 /*
388 * Find out how much mem we need
389 */
390 for (i = 0, mem = 0; i < client->argc; i++) {
391 lens[i] = strlen(client->argv[i]) + 1;
392 mem += lens[i];
393 }
394
395 /*
396 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
397 */
398 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
399
400 pdu = malloc(mem);
401 clp = pdu;
402 offset = sizeof(*clp);
403
404 for (i = 0; i < client->argc; i++) {
405 uint16_t arg_len = lens[i];
406
407 cslp = pdu + offset;
408 strcpy((char *) cslp->text, client->argv[i]);
409 cslp->len = cpu_to_le16(arg_len);
410 offset += sizeof(*cslp) + arg_len;
411 }
412
413 free(lens);
414 clp->lines = cpu_to_le16(client->argc);
415 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
416 free(pdu);
417 return ret;
418}
419
420int fio_clients_connect(void)
421{
422 struct fio_client *client;
423 struct flist_head *entry, *tmp;
424 int ret;
425
426#ifdef WIN32
427 WSADATA wsd;
428 WSAStartup(MAKEWORD(2,2), &wsd);
429#endif
430
431 dprint(FD_NET, "client: connect all\n");
432
433 client_signal_handler();
434
435 flist_for_each_safe(entry, tmp, &client_list) {
436 client = flist_entry(entry, struct fio_client, list);
437
438 ret = fio_client_connect(client);
439 if (ret) {
440 remove_client(client);
441 continue;
442 }
443
444 probe_client(client);
445
446 if (client->argc > 1)
447 send_client_cmd_line(client);
448 }
449
450 return !nr_clients;
451}
452
453/*
454 * Send file contents to server backend. We could use sendfile(), but to remain
455 * more portable lets just read/write the darn thing.
456 */
457static int fio_client_send_ini(struct fio_client *client, const char *filename)
458{
459 struct stat sb;
460 char *p, *buf;
461 off_t len;
462 int fd, ret;
463
464 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
465
466 fd = open(filename, O_RDONLY);
467 if (fd < 0) {
468 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
469 return 1;
470 }
471
472 if (fstat(fd, &sb) < 0) {
473 log_err("fio: job file stat: %s\n", strerror(errno));
474 close(fd);
475 return 1;
476 }
477
478 buf = malloc(sb.st_size);
479
480 len = sb.st_size;
481 p = buf;
482 do {
483 ret = read(fd, p, len);
484 if (ret > 0) {
485 len -= ret;
486 if (!len)
487 break;
488 p += ret;
489 continue;
490 } else if (!ret)
491 break;
492 else if (errno == EAGAIN || errno == EINTR)
493 continue;
494 } while (1);
495
496 if (len) {
497 log_err("fio: failed reading job file %s\n", filename);
498 close(fd);
499 free(buf);
500 return 1;
501 }
502
503 client->sent_job = 1;
504 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
505 free(buf);
506 close(fd);
507 return ret;
508}
509
510int fio_clients_send_ini(const char *filename)
511{
512 struct fio_client *client;
513 struct flist_head *entry, *tmp;
514
515 flist_for_each_safe(entry, tmp, &client_list) {
516 client = flist_entry(entry, struct fio_client, list);
517
518 if (fio_client_send_ini(client, filename))
519 remove_client(client);
520
521 client->sent_job = 1;
522 }
523
524 return !nr_clients;
525}
526
527static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
528{
529 dst->max_val = le64_to_cpu(src->max_val);
530 dst->min_val = le64_to_cpu(src->min_val);
531 dst->samples = le64_to_cpu(src->samples);
532
533 /*
534 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
535 */
536 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
537 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
538}
539
540static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
541{
542 int i, j;
543
544 dst->error = le32_to_cpu(src->error);
545 dst->groupid = le32_to_cpu(src->groupid);
546 dst->pid = le32_to_cpu(src->pid);
547 dst->members = le32_to_cpu(src->members);
548
549 for (i = 0; i < 2; i++) {
550 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
551 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
552 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
553 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
554 }
555
556 dst->usr_time = le64_to_cpu(src->usr_time);
557 dst->sys_time = le64_to_cpu(src->sys_time);
558 dst->ctx = le64_to_cpu(src->ctx);
559 dst->minf = le64_to_cpu(src->minf);
560 dst->majf = le64_to_cpu(src->majf);
561 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
562
563 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
564 fio_fp64_t *fps = &src->percentile_list[i];
565 fio_fp64_t *fpd = &dst->percentile_list[i];
566
567 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
568 }
569
570 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
571 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
572 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
573 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
574 }
575
576 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
577 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
578 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
579 }
580
581 for (i = 0; i < 2; i++)
582 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
583 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
584
585 for (i = 0; i < 3; i++) {
586 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
587 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
588 }
589
590 dst->total_submit = le64_to_cpu(src->total_submit);
591 dst->total_complete = le64_to_cpu(src->total_complete);
592
593 for (i = 0; i < 2; i++) {
594 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
595 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
596 }
597
598 dst->total_run_time = le64_to_cpu(src->total_run_time);
599 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
600 dst->total_err_count = le64_to_cpu(src->total_err_count);
601 dst->first_error = le32_to_cpu(src->first_error);
602 dst->kb_base = le32_to_cpu(src->kb_base);
603}
604
605static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
606{
607 int i;
608
609 for (i = 0; i < 2; i++) {
610 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
611 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
612 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
613 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
614 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
615 dst->agg[i] = le64_to_cpu(src->agg[i]);
616 }
617
618 dst->kb_base = le32_to_cpu(src->kb_base);
619 dst->groupid = le32_to_cpu(src->groupid);
620}
621
622static void handle_ts(struct fio_net_cmd *cmd)
623{
624 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
625
626 show_thread_status(&p->ts, &p->rs);
627
628 if (sum_stat_clients == 1)
629 return;
630
631 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
632 sum_group_stats(&client_gs, &p->rs);
633
634 client_ts.members++;
635 client_ts.groupid = p->ts.groupid;
636
637 if (++sum_stat_nr == sum_stat_clients) {
638 strcpy(client_ts.name, "All clients");
639 show_thread_status(&client_ts, &client_gs);
640 }
641}
642
643static void handle_gs(struct fio_net_cmd *cmd)
644{
645 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
646
647 show_group_stats(gs);
648}
649
650static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
651{
652 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
653 const char *buf = (const char *) pdu->buf;
654 const char *name;
655 int fio_unused ret;
656
657 name = client->name ? client->name : client->hostname;
658
659 if (!client->skip_newline)
660 fprintf(f_out, "<%s> ", name);
661 ret = fwrite(buf, pdu->buf_len, 1, f_out);
662 fflush(f_out);
663 client->skip_newline = strchr(buf, '\n') == NULL;
664}
665
666static void convert_agg(struct disk_util_agg *agg)
667{
668 int i;
669
670 for (i = 0; i < 2; i++) {
671 agg->ios[i] = le32_to_cpu(agg->ios[i]);
672 agg->merges[i] = le32_to_cpu(agg->merges[i]);
673 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
674 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
675 }
676
677 agg->io_ticks = le32_to_cpu(agg->io_ticks);
678 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
679 agg->slavecount = le32_to_cpu(agg->slavecount);
680 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
681}
682
683static void convert_dus(struct disk_util_stat *dus)
684{
685 int i;
686
687 for (i = 0; i < 2; i++) {
688 dus->ios[i] = le32_to_cpu(dus->ios[i]);
689 dus->merges[i] = le32_to_cpu(dus->merges[i]);
690 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
691 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
692 }
693
694 dus->io_ticks = le32_to_cpu(dus->io_ticks);
695 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
696 dus->msec = le64_to_cpu(dus->msec);
697}
698
699static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
700{
701 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
702
703 if (!client->disk_stats_shown) {
704 client->disk_stats_shown = 1;
705 log_info("\nDisk stats (read/write):\n");
706 }
707
708 print_disk_util(&du->dus, &du->agg, terse_output);
709}
710
711static void convert_jobs_eta(struct jobs_eta *je)
712{
713 int i;
714
715 je->nr_running = le32_to_cpu(je->nr_running);
716 je->nr_ramp = le32_to_cpu(je->nr_ramp);
717 je->nr_pending = le32_to_cpu(je->nr_pending);
718 je->files_open = le32_to_cpu(je->files_open);
719
720 for (i = 0; i < 2; i++) {
721 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
722 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
723 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
724 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
725 je->rate[i] = le32_to_cpu(je->rate[i]);
726 je->iops[i] = le32_to_cpu(je->iops[i]);
727 }
728
729 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
730 je->eta_sec = le64_to_cpu(je->eta_sec);
731}
732
733void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
734{
735 int i;
736
737 dst->nr_running += je->nr_running;
738 dst->nr_ramp += je->nr_ramp;
739 dst->nr_pending += je->nr_pending;
740 dst->files_open += je->files_open;
741
742 for (i = 0; i < 2; i++) {
743 dst->m_rate[i] += je->m_rate[i];
744 dst->t_rate[i] += je->t_rate[i];
745 dst->m_iops[i] += je->m_iops[i];
746 dst->t_iops[i] += je->t_iops[i];
747 dst->rate[i] += je->rate[i];
748 dst->iops[i] += je->iops[i];
749 }
750
751 dst->elapsed_sec += je->elapsed_sec;
752
753 if (je->eta_sec > dst->eta_sec)
754 dst->eta_sec = je->eta_sec;
755}
756
757void fio_client_dec_jobs_eta(struct client_eta *eta, void (*fn)(struct jobs_eta *))
758{
759 if (!--eta->pending) {
760 fn(&eta->eta);
761 free(eta);
762 }
763}
764
765static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
766{
767 struct fio_net_int_cmd *icmd = NULL;
768 struct flist_head *entry;
769
770 flist_for_each(entry, &client->cmd_list) {
771 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
772
773 if (cmd->tag == (uintptr_t) icmd)
774 break;
775
776 icmd = NULL;
777 }
778
779 if (!icmd) {
780 log_err("fio: client: unable to find matching tag\n");
781 return;
782 }
783
784 flist_del(&icmd->list);
785 cmd->tag = icmd->saved_tag;
786 free(icmd);
787}
788
789static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
790{
791 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
792 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
793
794 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
795
796 assert(client->eta_in_flight == eta);
797
798 client->eta_in_flight = NULL;
799 flist_del_init(&client->eta_list);
800
801 fio_client_sum_jobs_eta(&eta->eta, je);
802 fio_client_dec_jobs_eta(eta, display_thread_status);
803}
804
805static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
806{
807 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
808 const char *os, *arch;
809 char bit[16];
810
811 os = fio_get_os_string(probe->os);
812 if (!os)
813 os = "unknown";
814
815 arch = fio_get_arch_string(probe->arch);
816 if (!arch)
817 os = "unknown";
818
819 sprintf(bit, "%d-bit", probe->bpp * 8);
820
821 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
822 probe->hostname, probe->bigendian, bit, os, arch,
823 probe->fio_major, probe->fio_minor, probe->fio_patch);
824
825 if (!client->name)
826 client->name = strdup((char *) probe->hostname);
827}
828
829static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
830{
831 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
832
833 client->state = Client_started;
834 client->jobs = le32_to_cpu(pdu->jobs);
835}
836
837static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
838{
839 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
840
841 client->state = Client_stopped;
842 client->error = le32_to_cpu(pdu->error);
843
844 if (client->error)
845 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
846}
847
848static void convert_text(struct fio_net_cmd *cmd)
849{
850 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
851
852 pdu->level = le32_to_cpu(pdu->level);
853 pdu->buf_len = le32_to_cpu(pdu->buf_len);
854 pdu->log_sec = le64_to_cpu(pdu->log_sec);
855 pdu->log_usec = le64_to_cpu(pdu->log_usec);
856}
857
858int fio_handle_client(struct fio_client *client, struct client_ops *ops)
859{
860 struct fio_net_cmd *cmd;
861
862 dprint(FD_NET, "client: handle %s\n", client->hostname);
863
864 cmd = fio_net_recv_cmd(client->fd);
865 if (!cmd)
866 return 0;
867
868 dprint(FD_NET, "client: got cmd op %s from %s\n",
869 fio_server_op(cmd->opcode), client->hostname);
870
871 switch (cmd->opcode) {
872 case FIO_NET_CMD_QUIT:
873 if (ops->quit)
874 ops->quit(client);
875 remove_client(client);
876 free(cmd);
877 break;
878 case FIO_NET_CMD_TEXT:
879 convert_text(cmd);
880 ops->text_op(client, cmd);
881 free(cmd);
882 break;
883 case FIO_NET_CMD_DU: {
884 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
885
886 convert_dus(&du->dus);
887 convert_agg(&du->agg);
888
889 ops->disk_util(client, cmd);
890 free(cmd);
891 break;
892 }
893 case FIO_NET_CMD_TS: {
894 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
895
896 convert_ts(&p->ts, &p->ts);
897 convert_gs(&p->rs, &p->rs);
898
899 ops->thread_status(cmd);
900 free(cmd);
901 break;
902 }
903 case FIO_NET_CMD_GS: {
904 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
905
906 convert_gs(gs, gs);
907
908 ops->group_stats(cmd);
909 free(cmd);
910 break;
911 }
912 case FIO_NET_CMD_ETA: {
913 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
914
915 remove_reply_cmd(client, cmd);
916 convert_jobs_eta(je);
917 ops->eta(client, cmd);
918 free(cmd);
919 break;
920 }
921 case FIO_NET_CMD_PROBE:
922 remove_reply_cmd(client, cmd);
923 ops->probe(client, cmd);
924 free(cmd);
925 break;
926 case FIO_NET_CMD_RUN:
927 client->state = Client_running;
928 free(cmd);
929 break;
930 case FIO_NET_CMD_START:
931 handle_start(client, cmd);
932 free(cmd);
933 break;
934 case FIO_NET_CMD_STOP:
935 handle_stop(client, cmd);
936 free(cmd);
937 break;
938 case FIO_NET_CMD_ADD_JOB:
939 if (ops->add_job)
940 ops->add_job(client, cmd);
941 free(cmd);
942 break;
943 default:
944 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
945 free(cmd);
946 break;
947 }
948
949 return 1;
950}
951
952static void request_client_etas(void)
953{
954 struct fio_client *client;
955 struct flist_head *entry;
956 struct client_eta *eta;
957 int skipped = 0;
958
959 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
960
961 eta = malloc(sizeof(*eta));
962 memset(&eta->eta, 0, sizeof(eta->eta));
963 eta->pending = nr_clients;
964
965 flist_for_each(entry, &client_list) {
966 client = flist_entry(entry, struct fio_client, list);
967
968 if (!flist_empty(&client->eta_list)) {
969 skipped++;
970 continue;
971 }
972 if (client->state != Client_running)
973 continue;
974
975 assert(!client->eta_in_flight);
976 flist_add_tail(&client->eta_list, &eta_list);
977 client->eta_in_flight = eta;
978 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
979 (uintptr_t) eta, &client->cmd_list);
980 }
981
982 while (skipped--)
983 fio_client_dec_jobs_eta(eta, display_thread_status);
984
985 dprint(FD_NET, "client: requested eta tag %p\n", eta);
986}
987
988static int client_check_cmd_timeout(struct fio_client *client,
989 struct timeval *now)
990{
991 struct fio_net_int_cmd *cmd;
992 struct flist_head *entry, *tmp;
993 int ret = 0;
994
995 flist_for_each_safe(entry, tmp, &client->cmd_list) {
996 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
997
998 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
999 continue;
1000
1001 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1002 fio_server_op(cmd->cmd.opcode));
1003 flist_del(&cmd->list);
1004 free(cmd);
1005 ret = 1;
1006 }
1007
1008 return flist_empty(&client->cmd_list) && ret;
1009}
1010
1011static int fio_client_timed_out(struct client_ops *ops)
1012{
1013 struct fio_client *client;
1014 struct flist_head *entry, *tmp;
1015 struct timeval tv;
1016 int ret = 0;
1017
1018 gettimeofday(&tv, NULL);
1019
1020 flist_for_each_safe(entry, tmp, &client_list) {
1021 client = flist_entry(entry, struct fio_client, list);
1022
1023 if (flist_empty(&client->cmd_list))
1024 continue;
1025
1026 if (!client_check_cmd_timeout(client, &tv))
1027 continue;
1028
1029 if (ops->timed_out)
1030 ops->timed_out(client);
1031 else
1032 log_err("fio: client %s timed out\n", client->hostname);
1033
1034 remove_client(client);
1035 ret = 1;
1036 }
1037
1038 return ret;
1039}
1040
1041int fio_handle_clients(struct client_ops *ops)
1042{
1043 struct pollfd *pfds;
1044 int i, ret = 0, retval = 0;
1045
1046 gettimeofday(&eta_tv, NULL);
1047
1048 pfds = malloc(nr_clients * sizeof(struct pollfd));
1049
1050 sum_stat_clients = nr_clients;
1051 init_thread_stat(&client_ts);
1052 init_group_run_stat(&client_gs);
1053
1054 while (!exit_backend && nr_clients) {
1055 struct flist_head *entry, *tmp;
1056 struct fio_client *client;
1057
1058 i = 0;
1059 flist_for_each_safe(entry, tmp, &client_list) {
1060 client = flist_entry(entry, struct fio_client, list);
1061
1062 if (!client->sent_job && !ops->stay_connected &&
1063 flist_empty(&client->cmd_list)) {
1064 remove_client(client);
1065 continue;
1066 }
1067
1068 pfds[i].fd = client->fd;
1069 pfds[i].events = POLLIN;
1070 i++;
1071 }
1072
1073 if (!nr_clients)
1074 break;
1075
1076 assert(i == nr_clients);
1077
1078 do {
1079 struct timeval tv;
1080
1081 gettimeofday(&tv, NULL);
1082 if (mtime_since(&eta_tv, &tv) >= 900) {
1083 request_client_etas();
1084 memcpy(&eta_tv, &tv, sizeof(tv));
1085
1086 if (fio_client_timed_out(ops))
1087 break;
1088 }
1089
1090 ret = poll(pfds, nr_clients, 100);
1091 if (ret < 0) {
1092 if (errno == EINTR)
1093 continue;
1094 log_err("fio: poll clients: %s\n", strerror(errno));
1095 break;
1096 } else if (!ret)
1097 continue;
1098 } while (ret <= 0);
1099
1100 for (i = 0; i < nr_clients; i++) {
1101 if (!(pfds[i].revents & POLLIN))
1102 continue;
1103
1104 client = find_client_by_fd(pfds[i].fd);
1105 if (!client) {
1106 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1107 continue;
1108 }
1109 if (!fio_handle_client(client, ops)) {
1110 log_info("client: host=%s disconnected\n",
1111 client->hostname);
1112 remove_client(client);
1113 retval = 1;
1114 } else if (client->error)
1115 retval = 1;
1116 }
1117 }
1118
1119 free(pfds);
1120 return retval;
1121}
fio - Flexible IO Tester