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axmap: get rid of old debug ->fail_ok checking
[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
18#include "fio.h"
19#include "server.h"
20#include "flist.h"
21#include "hash.h"
22
23struct client_eta {
24 unsigned int pending;
25 struct jobs_eta eta;
26};
27
28struct fio_client {
29 struct flist_head list;
30 struct flist_head hash_list;
31 struct flist_head arg_list;
32 union {
33 struct sockaddr_in addr;
34 struct sockaddr_in6 addr6;
35 struct sockaddr_un addr_un;
36 };
37 char *hostname;
38 int port;
39 int fd;
40 unsigned int refs;
41
42 char *name;
43
44 int state;
45
46 int skip_newline;
47 int is_sock;
48 int disk_stats_shown;
49 unsigned int jobs;
50 unsigned int nr_stat;
51 int error;
52 int ipv6;
53 int sent_job;
54 int did_stat;
55
56 struct flist_head eta_list;
57 struct client_eta *eta_in_flight;
58
59 struct flist_head cmd_list;
60
61 uint16_t argc;
62 char **argv;
63
64 char **ini_file;
65 unsigned int nr_ini_file;
66};
67
68static struct timeval eta_tv;
69
70enum {
71 Client_created = 0,
72 Client_connected = 1,
73 Client_started = 2,
74 Client_running = 3,
75 Client_stopped = 4,
76 Client_exited = 5,
77};
78
79static FLIST_HEAD(client_list);
80static FLIST_HEAD(eta_list);
81
82static FLIST_HEAD(arg_list);
83
84static struct thread_stat client_ts;
85static struct group_run_stats client_gs;
86static int sum_stat_clients = 0;
87static int sum_stat_nr;
88static int do_output_all_clients;
89
90#define FIO_CLIENT_HASH_BITS 7
91#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
92#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
93static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
94
95static int handle_client(struct fio_client *client);
96static void dec_jobs_eta(struct client_eta *eta);
97
98static void fio_client_add_hash(struct fio_client *client)
99{
100 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
101
102 bucket &= FIO_CLIENT_HASH_MASK;
103 flist_add(&client->hash_list, &client_hash[bucket]);
104}
105
106static void fio_client_remove_hash(struct fio_client *client)
107{
108 if (!flist_empty(&client->hash_list))
109 flist_del_init(&client->hash_list);
110}
111
112static void fio_init fio_client_hash_init(void)
113{
114 int i;
115
116 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
117 INIT_FLIST_HEAD(&client_hash[i]);
118}
119
120static struct fio_client *find_client_by_fd(int fd)
121{
122 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
123 struct fio_client *client;
124 struct flist_head *entry;
125
126 flist_for_each(entry, &client_hash[bucket]) {
127 client = flist_entry(entry, struct fio_client, hash_list);
128
129 if (client->fd == fd) {
130 client->refs++;
131 return client;
132 }
133 }
134
135 return NULL;
136}
137
138static void remove_client(struct fio_client *client)
139{
140 assert(client->refs);
141
142 if (--client->refs)
143 return;
144
145 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
146 flist_del(&client->list);
147
148 fio_client_remove_hash(client);
149
150 if (!flist_empty(&client->eta_list)) {
151 flist_del_init(&client->eta_list);
152 dec_jobs_eta(client->eta_in_flight);
153 }
154
155 free(client->hostname);
156 if (client->argv)
157 free(client->argv);
158 if (client->name)
159 free(client->name);
160 while (client->nr_ini_file)
161 free(client->ini_file[--client->nr_ini_file]);
162 if (client->ini_file)
163 free(client->ini_file);
164
165 if (!client->did_stat)
166 sum_stat_clients -= client->nr_stat;
167
168 free(client);
169 nr_clients--;
170}
171
172static void put_client(struct fio_client *client)
173{
174 remove_client(client);
175}
176
177static void __fio_client_add_cmd_option(struct fio_client *client,
178 const char *opt)
179{
180 int index;
181
182 index = client->argc++;
183 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
184 client->argv[index] = strdup(opt);
185 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
186}
187
188void fio_client_add_cmd_option(void *cookie, const char *opt)
189{
190 struct fio_client *client = cookie;
191 struct flist_head *entry;
192
193 if (!client || !opt)
194 return;
195
196 __fio_client_add_cmd_option(client, opt);
197
198 /*
199 * Duplicate arguments to shared client group
200 */
201 flist_for_each(entry, &arg_list) {
202 client = flist_entry(entry, struct fio_client, arg_list);
203
204 __fio_client_add_cmd_option(client, opt);
205 }
206}
207
208void fio_client_add_ini_file(void *cookie, const char *ini_file)
209{
210 struct fio_client *client = cookie;
211 size_t new_size;
212
213 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
214
215 new_size = (client->nr_ini_file + 1) * sizeof(char *);
216 client->ini_file = realloc(client->ini_file, new_size);
217 client->ini_file[client->nr_ini_file] = strdup(ini_file);
218 client->nr_ini_file++;
219}
220
221int fio_client_add(const char *hostname, void **cookie)
222{
223 struct fio_client *existing = *cookie;
224 struct fio_client *client;
225
226 if (existing) {
227 /*
228 * We always add our "exec" name as the option, hence 1
229 * means empty.
230 */
231 if (existing->argc == 1)
232 flist_add_tail(&existing->arg_list, &arg_list);
233 else {
234 while (!flist_empty(&arg_list))
235 flist_del_init(arg_list.next);
236 }
237 }
238
239 client = malloc(sizeof(*client));
240 memset(client, 0, sizeof(*client));
241
242 INIT_FLIST_HEAD(&client->list);
243 INIT_FLIST_HEAD(&client->hash_list);
244 INIT_FLIST_HEAD(&client->arg_list);
245 INIT_FLIST_HEAD(&client->eta_list);
246 INIT_FLIST_HEAD(&client->cmd_list);
247
248 if (fio_server_parse_string(hostname, &client->hostname,
249 &client->is_sock, &client->port,
250 &client->addr.sin_addr,
251 &client->addr6.sin6_addr,
252 &client->ipv6))
253 return -1;
254
255 client->fd = -1;
256 client->refs = 1;
257
258 __fio_client_add_cmd_option(client, "fio");
259
260 flist_add(&client->list, &client_list);
261 nr_clients++;
262 dprint(FD_NET, "client: added <%s>\n", client->hostname);
263 *cookie = client;
264 return 0;
265}
266
267static int fio_client_connect_ip(struct fio_client *client)
268{
269 struct sockaddr *addr;
270 socklen_t socklen;
271 int fd, domain;
272
273 if (client->ipv6) {
274 client->addr6.sin6_family = AF_INET6;
275 client->addr6.sin6_port = htons(client->port);
276 domain = AF_INET6;
277 addr = (struct sockaddr *) &client->addr6;
278 socklen = sizeof(client->addr6);
279 } else {
280 client->addr.sin_family = AF_INET;
281 client->addr.sin_port = htons(client->port);
282 domain = AF_INET;
283 addr = (struct sockaddr *) &client->addr;
284 socklen = sizeof(client->addr);
285 }
286
287 fd = socket(domain, SOCK_STREAM, 0);
288 if (fd < 0) {
289 log_err("fio: socket: %s\n", strerror(errno));
290 return -1;
291 }
292
293 if (connect(fd, addr, socklen) < 0) {
294 log_err("fio: connect: %s\n", strerror(errno));
295 log_err("fio: failed to connect to %s:%u\n", client->hostname,
296 client->port);
297 close(fd);
298 return -1;
299 }
300
301 return fd;
302}
303
304static int fio_client_connect_sock(struct fio_client *client)
305{
306 struct sockaddr_un *addr = &client->addr_un;
307 socklen_t len;
308 int fd;
309
310 memset(addr, 0, sizeof(*addr));
311 addr->sun_family = AF_UNIX;
312 strcpy(addr->sun_path, client->hostname);
313
314 fd = socket(AF_UNIX, SOCK_STREAM, 0);
315 if (fd < 0) {
316 log_err("fio: socket: %s\n", strerror(errno));
317 return -1;
318 }
319
320 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
321 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
322 log_err("fio: connect; %s\n", strerror(errno));
323 close(fd);
324 return -1;
325 }
326
327 return fd;
328}
329
330static int fio_client_connect(struct fio_client *client)
331{
332 int fd;
333
334 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
335
336 if (client->is_sock)
337 fd = fio_client_connect_sock(client);
338 else
339 fd = fio_client_connect_ip(client);
340
341 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
342
343 if (fd < 0)
344 return 1;
345
346 client->fd = fd;
347 fio_client_add_hash(client);
348 client->state = Client_connected;
349 return 0;
350}
351
352void fio_clients_terminate(void)
353{
354 struct flist_head *entry;
355 struct fio_client *client;
356
357 dprint(FD_NET, "client: terminate clients\n");
358
359 flist_for_each(entry, &client_list) {
360 client = flist_entry(entry, struct fio_client, list);
361
362 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
363 }
364}
365
366static void sig_int(int sig)
367{
368 dprint(FD_NET, "client: got signal %d\n", sig);
369 fio_clients_terminate();
370}
371
372static void sig_show_status(int sig)
373{
374 show_running_run_stats();
375}
376
377static void client_signal_handler(void)
378{
379 struct sigaction act;
380
381 memset(&act, 0, sizeof(act));
382 act.sa_handler = sig_int;
383 act.sa_flags = SA_RESTART;
384 sigaction(SIGINT, &act, NULL);
385
386 memset(&act, 0, sizeof(act));
387 act.sa_handler = sig_int;
388 act.sa_flags = SA_RESTART;
389 sigaction(SIGTERM, &act, NULL);
390
391/* Windows uses SIGBREAK as a quit signal from other applications */
392#ifdef WIN32
393 memset(&act, 0, sizeof(act));
394 act.sa_handler = sig_int;
395 act.sa_flags = SA_RESTART;
396 sigaction(SIGBREAK, &act, NULL);
397#endif
398
399 memset(&act, 0, sizeof(act));
400 act.sa_handler = sig_show_status;
401 act.sa_flags = SA_RESTART;
402 sigaction(SIGUSR1, &act, NULL);
403}
404
405static void probe_client(struct fio_client *client)
406{
407 dprint(FD_NET, "client: send probe\n");
408
409 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
410}
411
412static int send_client_cmd_line(struct fio_client *client)
413{
414 struct cmd_single_line_pdu *cslp;
415 struct cmd_line_pdu *clp;
416 unsigned long offset;
417 unsigned int *lens;
418 void *pdu;
419 size_t mem;
420 int i, ret;
421
422 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
423
424 lens = malloc(client->argc * sizeof(unsigned int));
425
426 /*
427 * Find out how much mem we need
428 */
429 for (i = 0, mem = 0; i < client->argc; i++) {
430 lens[i] = strlen(client->argv[i]) + 1;
431 mem += lens[i];
432 }
433
434 /*
435 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
436 */
437 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
438
439 pdu = malloc(mem);
440 clp = pdu;
441 offset = sizeof(*clp);
442
443 for (i = 0; i < client->argc; i++) {
444 uint16_t arg_len = lens[i];
445
446 cslp = pdu + offset;
447 strcpy((char *) cslp->text, client->argv[i]);
448 cslp->len = cpu_to_le16(arg_len);
449 offset += sizeof(*cslp) + arg_len;
450 }
451
452 free(lens);
453 clp->lines = cpu_to_le16(client->argc);
454 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
455 free(pdu);
456 return ret;
457}
458
459int fio_clients_connect(void)
460{
461 struct fio_client *client;
462 struct flist_head *entry, *tmp;
463 int ret;
464
465#ifdef WIN32
466 WSADATA wsd;
467 WSAStartup(MAKEWORD(2,2), &wsd);
468#endif
469
470 dprint(FD_NET, "client: connect all\n");
471
472 client_signal_handler();
473
474 flist_for_each_safe(entry, tmp, &client_list) {
475 client = flist_entry(entry, struct fio_client, list);
476
477 ret = fio_client_connect(client);
478 if (ret) {
479 remove_client(client);
480 continue;
481 }
482
483 probe_client(client);
484
485 if (client->argc > 1)
486 send_client_cmd_line(client);
487 }
488
489 return !nr_clients;
490}
491
492/*
493 * Send file contents to server backend. We could use sendfile(), but to remain
494 * more portable lets just read/write the darn thing.
495 */
496static int fio_client_send_ini(struct fio_client *client, const char *filename)
497{
498 struct stat sb;
499 char *p, *buf;
500 off_t len;
501 int fd, ret;
502
503 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
504
505 fd = open(filename, O_RDONLY);
506 if (fd < 0) {
507 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
508 return 1;
509 }
510
511 if (fstat(fd, &sb) < 0) {
512 log_err("fio: job file stat: %s\n", strerror(errno));
513 close(fd);
514 return 1;
515 }
516
517 buf = malloc(sb.st_size);
518
519 len = sb.st_size;
520 p = buf;
521 do {
522 ret = read(fd, p, len);
523 if (ret > 0) {
524 len -= ret;
525 if (!len)
526 break;
527 p += ret;
528 continue;
529 } else if (!ret)
530 break;
531 else if (errno == EAGAIN || errno == EINTR)
532 continue;
533 } while (1);
534
535 if (len) {
536 log_err("fio: failed reading job file %s\n", filename);
537 close(fd);
538 free(buf);
539 return 1;
540 }
541
542 client->sent_job = 1;
543 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
544 free(buf);
545 close(fd);
546 return ret;
547}
548
549int fio_clients_send_ini(const char *filename)
550{
551 struct fio_client *client;
552 struct flist_head *entry, *tmp;
553
554 flist_for_each_safe(entry, tmp, &client_list) {
555 client = flist_entry(entry, struct fio_client, list);
556
557 if (client->nr_ini_file) {
558 int i;
559
560 for (i = 0; i < client->nr_ini_file; i++) {
561 const char *ini = client->ini_file[i];
562
563 if (fio_client_send_ini(client, ini)) {
564 remove_client(client);
565 break;
566 }
567 }
568 } else if (!filename || fio_client_send_ini(client, filename))
569 remove_client(client);
570
571 client->sent_job = 1;
572 }
573
574 return !nr_clients;
575}
576
577static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
578{
579 dst->max_val = le64_to_cpu(src->max_val);
580 dst->min_val = le64_to_cpu(src->min_val);
581 dst->samples = le64_to_cpu(src->samples);
582
583 /*
584 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
585 */
586 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
587 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
588}
589
590static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
591{
592 int i, j;
593
594 dst->error = le32_to_cpu(src->error);
595 dst->groupid = le32_to_cpu(src->groupid);
596 dst->pid = le32_to_cpu(src->pid);
597 dst->members = le32_to_cpu(src->members);
598 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
599
600 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
601 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
602 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
603 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
604 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
605 }
606
607 dst->usr_time = le64_to_cpu(src->usr_time);
608 dst->sys_time = le64_to_cpu(src->sys_time);
609 dst->ctx = le64_to_cpu(src->ctx);
610 dst->minf = le64_to_cpu(src->minf);
611 dst->majf = le64_to_cpu(src->majf);
612 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
613
614 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
615 fio_fp64_t *fps = &src->percentile_list[i];
616 fio_fp64_t *fpd = &dst->percentile_list[i];
617
618 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
619 }
620
621 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
622 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
623 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
624 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
625 }
626
627 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
628 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
629 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
630 }
631
632 for (i = 0; i < DDIR_RWDIR_CNT; i++)
633 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
634 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
635
636 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
637 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
638 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
639 }
640
641 dst->total_submit = le64_to_cpu(src->total_submit);
642 dst->total_complete = le64_to_cpu(src->total_complete);
643
644 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
645 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
646 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
647 }
648
649 dst->total_run_time = le64_to_cpu(src->total_run_time);
650 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
651 dst->total_err_count = le64_to_cpu(src->total_err_count);
652 dst->first_error = le32_to_cpu(src->first_error);
653 dst->kb_base = le32_to_cpu(src->kb_base);
654}
655
656static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
657{
658 int i;
659
660 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
661 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
662 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
663 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
664 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
665 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
666 dst->agg[i] = le64_to_cpu(src->agg[i]);
667 }
668
669 dst->kb_base = le32_to_cpu(src->kb_base);
670 dst->groupid = le32_to_cpu(src->groupid);
671 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
672}
673
674static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
675{
676 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
677
678 convert_ts(&p->ts, &p->ts);
679 convert_gs(&p->rs, &p->rs);
680
681 show_thread_status(&p->ts, &p->rs);
682 client->did_stat = 1;
683
684 if (!do_output_all_clients)
685 return;
686
687 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
688 sum_group_stats(&client_gs, &p->rs);
689
690 client_ts.members++;
691 client_ts.groupid = p->ts.groupid;
692 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
693
694 if (++sum_stat_nr == sum_stat_clients) {
695 strcpy(client_ts.name, "All clients");
696 show_thread_status(&client_ts, &client_gs);
697 }
698}
699
700static void handle_gs(struct fio_net_cmd *cmd)
701{
702 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
703
704 convert_gs(gs, gs);
705 show_group_stats(gs);
706}
707
708static void convert_agg(struct disk_util_agg *agg)
709{
710 int i;
711
712 for (i = 0; i < 2; i++) {
713 agg->ios[i] = le32_to_cpu(agg->ios[i]);
714 agg->merges[i] = le32_to_cpu(agg->merges[i]);
715 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
716 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
717 }
718
719 agg->io_ticks = le32_to_cpu(agg->io_ticks);
720 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
721 agg->slavecount = le32_to_cpu(agg->slavecount);
722 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
723}
724
725static void convert_dus(struct disk_util_stat *dus)
726{
727 int i;
728
729 for (i = 0; i < 2; i++) {
730 dus->ios[i] = le32_to_cpu(dus->ios[i]);
731 dus->merges[i] = le32_to_cpu(dus->merges[i]);
732 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
733 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
734 }
735
736 dus->io_ticks = le32_to_cpu(dus->io_ticks);
737 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
738 dus->msec = le64_to_cpu(dus->msec);
739}
740
741static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
742{
743 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
744
745 convert_dus(&du->dus);
746 convert_agg(&du->agg);
747
748 if (!client->disk_stats_shown) {
749 client->disk_stats_shown = 1;
750 log_info("\nDisk stats (read/write):\n");
751 }
752
753 print_disk_util(&du->dus, &du->agg, output_format == FIO_OUTPUT_TERSE);
754}
755
756static void convert_jobs_eta(struct jobs_eta *je)
757{
758 int i;
759
760 je->nr_running = le32_to_cpu(je->nr_running);
761 je->nr_ramp = le32_to_cpu(je->nr_ramp);
762 je->nr_pending = le32_to_cpu(je->nr_pending);
763 je->files_open = le32_to_cpu(je->files_open);
764 je->m_rate = le32_to_cpu(je->m_rate);
765 je->t_rate = le32_to_cpu(je->t_rate);
766 je->m_iops = le32_to_cpu(je->m_iops);
767 je->t_iops = le32_to_cpu(je->t_iops);
768
769 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
770 je->rate[i] = le32_to_cpu(je->rate[i]);
771 je->iops[i] = le32_to_cpu(je->iops[i]);
772 }
773
774 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
775 je->eta_sec = le64_to_cpu(je->eta_sec);
776 je->is_pow2 = le32_to_cpu(je->is_pow2);
777}
778
779static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
780{
781 int i;
782
783 dst->nr_running += je->nr_running;
784 dst->nr_ramp += je->nr_ramp;
785 dst->nr_pending += je->nr_pending;
786 dst->files_open += je->files_open;
787 dst->m_rate += je->m_rate;
788 dst->t_rate += je->t_rate;
789 dst->m_iops += je->m_iops;
790 dst->t_iops += je->t_iops;
791
792 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
793 dst->rate[i] += je->rate[i];
794 dst->iops[i] += je->iops[i];
795 }
796
797 dst->elapsed_sec += je->elapsed_sec;
798
799 if (je->eta_sec > dst->eta_sec)
800 dst->eta_sec = je->eta_sec;
801}
802
803static void dec_jobs_eta(struct client_eta *eta)
804{
805 if (!--eta->pending) {
806 display_thread_status(&eta->eta);
807 free(eta);
808 }
809}
810
811static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
812{
813 struct fio_net_int_cmd *icmd = NULL;
814 struct flist_head *entry;
815
816 flist_for_each(entry, &client->cmd_list) {
817 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
818
819 if (cmd->tag == (uintptr_t) icmd)
820 break;
821
822 icmd = NULL;
823 }
824
825 if (!icmd) {
826 log_err("fio: client: unable to find matching tag\n");
827 return;
828 }
829
830 flist_del(&icmd->list);
831 cmd->tag = icmd->saved_tag;
832 free(icmd);
833}
834
835static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
836{
837 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
838 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
839
840 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
841
842 assert(client->eta_in_flight == eta);
843
844 client->eta_in_flight = NULL;
845 flist_del_init(&client->eta_list);
846
847 convert_jobs_eta(je);
848 sum_jobs_eta(&eta->eta, je);
849 dec_jobs_eta(eta);
850}
851
852static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
853{
854 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
855 const char *os, *arch;
856 char bit[16];
857
858 os = fio_get_os_string(probe->os);
859 if (!os)
860 os = "unknown";
861
862 arch = fio_get_arch_string(probe->arch);
863 if (!arch)
864 os = "unknown";
865
866 sprintf(bit, "%d-bit", probe->bpp * 8);
867
868 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s\n",
869 probe->hostname, probe->bigendian, bit, os, arch,
870 probe->fio_version);
871
872 if (!client->name)
873 client->name = strdup((char *) probe->hostname);
874}
875
876static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
877{
878 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
879
880 client->state = Client_started;
881 client->jobs = le32_to_cpu(pdu->jobs);
882 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
883
884 if (sum_stat_clients > 1)
885 do_output_all_clients = 1;
886
887 sum_stat_clients += client->nr_stat;
888}
889
890static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
891{
892 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
893
894 client->state = Client_stopped;
895 client->error = le32_to_cpu(pdu->error);
896
897 if (client->error)
898 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
899}
900
901static int handle_client(struct fio_client *client)
902{
903 struct fio_net_cmd *cmd;
904
905 dprint(FD_NET, "client: handle %s\n", client->hostname);
906
907 cmd = fio_net_recv_cmd(client->fd);
908 if (!cmd)
909 return 0;
910
911 dprint(FD_NET, "client: got cmd op %s from %s\n",
912 fio_server_op(cmd->opcode), client->hostname);
913
914 switch (cmd->opcode) {
915 case FIO_NET_CMD_QUIT:
916 remove_client(client);
917 free(cmd);
918 break;
919 case FIO_NET_CMD_TEXT: {
920 const char *buf = (const char *) cmd->payload;
921 const char *name;
922 int fio_unused ret;
923
924 name = client->name ? client->name : client->hostname;
925
926 if (!client->skip_newline)
927 fprintf(f_out, "<%s> ", name);
928 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
929 fflush(f_out);
930 client->skip_newline = strchr(buf, '\n') == NULL;
931 free(cmd);
932 break;
933 }
934 case FIO_NET_CMD_DU:
935 handle_du(client, cmd);
936 free(cmd);
937 break;
938 case FIO_NET_CMD_TS:
939 handle_ts(client, cmd);
940 free(cmd);
941 break;
942 case FIO_NET_CMD_GS:
943 handle_gs(cmd);
944 free(cmd);
945 break;
946 case FIO_NET_CMD_ETA:
947 remove_reply_cmd(client, cmd);
948 handle_eta(client, cmd);
949 free(cmd);
950 break;
951 case FIO_NET_CMD_PROBE:
952 remove_reply_cmd(client, cmd);
953 handle_probe(client, cmd);
954 free(cmd);
955 break;
956 case FIO_NET_CMD_RUN:
957 client->state = Client_running;
958 free(cmd);
959 break;
960 case FIO_NET_CMD_START:
961 handle_start(client, cmd);
962 free(cmd);
963 break;
964 case FIO_NET_CMD_STOP:
965 handle_stop(client, cmd);
966 free(cmd);
967 break;
968 default:
969 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
970 free(cmd);
971 break;
972 }
973
974 return 1;
975}
976
977static void request_client_etas(void)
978{
979 struct fio_client *client;
980 struct flist_head *entry;
981 struct client_eta *eta;
982 int skipped = 0;
983
984 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
985
986 eta = malloc(sizeof(*eta));
987 memset(&eta->eta, 0, sizeof(eta->eta));
988 eta->pending = nr_clients;
989
990 flist_for_each(entry, &client_list) {
991 client = flist_entry(entry, struct fio_client, list);
992
993 if (!flist_empty(&client->eta_list)) {
994 skipped++;
995 continue;
996 }
997 if (client->state != Client_running)
998 continue;
999
1000 assert(!client->eta_in_flight);
1001 flist_add_tail(&client->eta_list, &eta_list);
1002 client->eta_in_flight = eta;
1003 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1004 (uintptr_t) eta, &client->cmd_list);
1005 }
1006
1007 while (skipped--)
1008 dec_jobs_eta(eta);
1009
1010 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1011}
1012
1013static int client_check_cmd_timeout(struct fio_client *client,
1014 struct timeval *now)
1015{
1016 struct fio_net_int_cmd *cmd;
1017 struct flist_head *entry, *tmp;
1018 int ret = 0;
1019
1020 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1021 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1022
1023 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1024 continue;
1025
1026 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1027 fio_server_op(cmd->cmd.opcode));
1028 flist_del(&cmd->list);
1029 free(cmd);
1030 ret = 1;
1031 }
1032
1033 return flist_empty(&client->cmd_list) && ret;
1034}
1035
1036static int fio_client_timed_out(void)
1037{
1038 struct fio_client *client;
1039 struct flist_head *entry, *tmp;
1040 struct timeval tv;
1041 int ret = 0;
1042
1043 fio_gettime(&tv, NULL);
1044
1045 flist_for_each_safe(entry, tmp, &client_list) {
1046 client = flist_entry(entry, struct fio_client, list);
1047
1048 if (flist_empty(&client->cmd_list))
1049 continue;
1050
1051 if (!client_check_cmd_timeout(client, &tv))
1052 continue;
1053
1054 log_err("fio: client %s timed out\n", client->hostname);
1055 remove_client(client);
1056 ret = 1;
1057 }
1058
1059 return ret;
1060}
1061
1062int fio_handle_clients(void)
1063{
1064 struct pollfd *pfds;
1065 int i, ret = 0, retval = 0;
1066
1067 fio_gettime(&eta_tv, NULL);
1068
1069 pfds = malloc(nr_clients * sizeof(struct pollfd));
1070
1071 init_thread_stat(&client_ts);
1072 init_group_run_stat(&client_gs);
1073
1074 while (!exit_backend && nr_clients) {
1075 struct flist_head *entry, *tmp;
1076 struct fio_client *client;
1077
1078 i = 0;
1079 flist_for_each_safe(entry, tmp, &client_list) {
1080 client = flist_entry(entry, struct fio_client, list);
1081
1082 if (!client->sent_job &&
1083 flist_empty(&client->cmd_list)) {
1084 remove_client(client);
1085 continue;
1086 }
1087
1088 pfds[i].fd = client->fd;
1089 pfds[i].events = POLLIN;
1090 i++;
1091 }
1092
1093 if (!nr_clients)
1094 break;
1095
1096 assert(i == nr_clients);
1097
1098 do {
1099 struct timeval tv;
1100
1101 fio_gettime(&tv, NULL);
1102 if (mtime_since(&eta_tv, &tv) >= 900) {
1103 request_client_etas();
1104 memcpy(&eta_tv, &tv, sizeof(tv));
1105
1106 if (fio_client_timed_out())
1107 break;
1108 }
1109
1110 ret = poll(pfds, nr_clients, 100);
1111 if (ret < 0) {
1112 if (errno == EINTR)
1113 continue;
1114 log_err("fio: poll clients: %s\n", strerror(errno));
1115 break;
1116 } else if (!ret)
1117 continue;
1118 } while (ret <= 0);
1119
1120 for (i = 0; i < nr_clients; i++) {
1121 if (!(pfds[i].revents & POLLIN))
1122 continue;
1123
1124 client = find_client_by_fd(pfds[i].fd);
1125 if (!client) {
1126 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1127 continue;
1128 }
1129 if (!handle_client(client)) {
1130 log_info("client: host=%s disconnected\n",
1131 client->hostname);
1132 remove_client(client);
1133 retval = 1;
1134 } else if (client->error)
1135 retval = 1;
1136 put_client(client);
1137 }
1138 }
1139
1140 free(pfds);
1141 return retval;
1142}
fio - Flexible IO Tester