client: bool conversion
[fio.git] / client.c
CommitLineData
132159a5
JA
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>
d05c4a03 11#include <sys/socket.h>
87aa8f19 12#include <sys/un.h>
132159a5
JA
13#include <netinet/in.h>
14#include <arpa/inet.h>
15#include <netdb.h>
9e22ecb0 16#include <signal.h>
3989b143 17#ifdef CONFIG_ZLIB
1b42725f 18#include <zlib.h>
3989b143 19#endif
132159a5
JA
20
21#include "fio.h"
dd366728 22#include "client.h"
132159a5 23#include "server.h"
b66570dc 24#include "flist.h"
3c5f57e3 25#include "hash.h"
ca09be4b 26#include "verify.h"
132159a5 27
dd366728 28static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
89e5fad9
JA
29static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
30static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
dd366728 31static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
084d1c6f 32static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
6b79c80c 33static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
85dd01e7 34static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
dd366728 35
54e62ad4
JA
36static void convert_text(struct fio_net_cmd *cmd);
37
dd366728 38struct client_ops fio_client_ops = {
35c0ba7f 39 .text = handle_text,
0420ba6a
JA
40 .disk_util = handle_du,
41 .thread_status = handle_ts,
42 .group_stats = handle_gs,
6b79c80c 43 .stop = handle_stop,
85dd01e7 44 .start = handle_start,
a5276616 45 .eta = display_thread_status,
0420ba6a 46 .probe = handle_probe,
6433ee05 47 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
46bcd498 48 .client_type = FIO_CLIENT_TYPE_CLI,
dd366728
SC
49};
50
af9c9fb3 51static struct timeval eta_tv;
48fbb46e 52
b66570dc 53static FLIST_HEAD(client_list);
82c1ed38 54static FLIST_HEAD(eta_list);
b66570dc 55
3f3a4542
JA
56static FLIST_HEAD(arg_list);
57
3650a3ca
JA
58struct thread_stat client_ts;
59struct group_run_stats client_gs;
60int sum_stat_clients;
61
37f0c1ae 62static int sum_stat_nr;
952b05e0 63static struct json_object *root = NULL;
0279b880 64static struct json_object *job_opt_object = NULL;
952b05e0
CF
65static struct json_array *clients_array = NULL;
66static struct json_array *du_array = NULL;
37f0c1ae 67
f9a33cc0
JA
68static int error_clients;
69
3c5f57e3
JA
70#define FIO_CLIENT_HASH_BITS 7
71#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
72#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
bebe6398 73static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
3c5f57e3 74
0cba0f91
JA
75static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *, bool *);
76
bebe6398 77static void fio_client_add_hash(struct fio_client *client)
3c5f57e3
JA
78{
79 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
80
81 bucket &= FIO_CLIENT_HASH_MASK;
bebe6398 82 flist_add(&client->hash_list, &client_hash[bucket]);
3c5f57e3
JA
83}
84
bebe6398 85static void fio_client_remove_hash(struct fio_client *client)
3c5f57e3 86{
bebe6398
JA
87 if (!flist_empty(&client->hash_list))
88 flist_del_init(&client->hash_list);
3c5f57e3
JA
89}
90
91static void fio_init fio_client_hash_init(void)
92{
93 int i;
94
bebe6398
JA
95 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
96 INIT_FLIST_HEAD(&client_hash[i]);
3c5f57e3
JA
97}
98
e5aa68b3
JA
99static int read_data(int fd, void *data, size_t size)
100{
101 ssize_t ret;
102
103 while (size) {
104 ret = read(fd, data, size);
105 if (ret < 0) {
106 if (errno == EAGAIN || errno == EINTR)
107 continue;
108 break;
109 } else if (!ret)
110 break;
111 else {
112 data += ret;
113 size -= ret;
114 }
115 }
116
117 if (size)
118 return EAGAIN;
119
120 return 0;
121}
122
952b05e0
CF
123static void fio_client_json_init(void)
124{
0279b880
JA
125 char time_buf[32];
126 time_t time_p;
127
01cfefcc 128 if (!(output_format & FIO_OUTPUT_JSON))
952b05e0 129 return;
84f1f865 130
0279b880
JA
131 time(&time_p);
132 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
133 time_buf[strlen(time_buf) - 1] = '\0';
134
952b05e0
CF
135 root = json_create_object();
136 json_object_add_value_string(root, "fio version", fio_version_string);
0279b880
JA
137 json_object_add_value_int(root, "timestamp", time_p);
138 json_object_add_value_string(root, "time", time_buf);
139
140 job_opt_object = json_create_object();
141 json_object_add_value_object(root, "global options", job_opt_object);
952b05e0
CF
142 clients_array = json_create_array();
143 json_object_add_value_array(root, "client_stats", clients_array);
144 du_array = json_create_array();
145 json_object_add_value_array(root, "disk_util", du_array);
146}
147
148static void fio_client_json_fini(void)
149{
01cfefcc 150 if (!(output_format & FIO_OUTPUT_JSON))
952b05e0 151 return;
0279b880 152
84f1f865 153 log_info("\n");
a666cab8 154 json_print_object(root, NULL);
952b05e0
CF
155 log_info("\n");
156 json_free_object(root);
157 root = NULL;
158 clients_array = NULL;
159 du_array = NULL;
160}
161
b66570dc
JA
162static struct fio_client *find_client_by_fd(int fd)
163{
3c5f57e3 164 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
b66570dc
JA
165 struct fio_client *client;
166 struct flist_head *entry;
167
bebe6398
JA
168 flist_for_each(entry, &client_hash[bucket]) {
169 client = flist_entry(entry, struct fio_client, hash_list);
b66570dc 170
e55f8f30
JA
171 if (client->fd == fd) {
172 client->refs++;
b66570dc 173 return client;
e55f8f30 174 }
b66570dc
JA
175 }
176
177 return NULL;
178}
179
3af45201 180void fio_put_client(struct fio_client *client)
b66570dc 181{
5121a9aa
JA
182 if (--client->refs)
183 return;
184
3af45201
JA
185 free(client->hostname);
186 if (client->argv)
187 free(client->argv);
188 if (client->name)
189 free(client->name);
323255cc
JA
190 while (client->nr_files) {
191 struct client_file *cf = &client->files[--client->nr_files];
192
193 free(cf->file);
194 }
195 if (client->files)
196 free(client->files);
0279b880
JA
197 if (client->opt_lists)
198 free(client->opt_lists);
3af45201 199
108fea77 200 if (!client->did_stat)
7b38411c 201 sum_stat_clients--;
108fea77 202
f9a33cc0
JA
203 if (client->error)
204 error_clients++;
205
3af45201
JA
206 free(client);
207}
208
f02f7dac
JA
209static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
210{
211 if (!--eta->pending) {
212 eta_fn(&eta->eta);
213 free(eta);
214 return 0;
215 }
216
217 return 1;
218}
219
54e62ad4
JA
220static void fio_drain_client_text(struct fio_client *client)
221{
222 do {
223 struct fio_net_cmd *cmd;
224
225 cmd = fio_net_recv_cmd(client->fd, false);
226 if (!cmd)
227 break;
228
2baadb02
JA
229 if (cmd->opcode == FIO_NET_CMD_TEXT) {
230 convert_text(cmd);
231 client->ops->text(client, cmd);
54e62ad4
JA
232 }
233
2baadb02 234 free(cmd);
54e62ad4
JA
235 } while (1);
236}
237
3af45201
JA
238static void remove_client(struct fio_client *client)
239{
240 assert(client->refs);
241
39e8e016 242 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
3af45201 243
54e62ad4
JA
244 fio_drain_client_text(client);
245
3af45201
JA
246 if (!flist_empty(&client->list))
247 flist_del_init(&client->list);
3c5f57e3 248
bebe6398 249 fio_client_remove_hash(client);
81179eec 250
82c1ed38
JA
251 if (!flist_empty(&client->eta_list)) {
252 flist_del_init(&client->eta_list);
a5276616 253 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
82c1ed38 254 }
af9c9fb3 255
1e0c184e
JA
256 close(client->fd);
257 client->fd = -1;
258
0cf3ece0
JA
259 if (client->ops->removed)
260 client->ops->removed(client);
261
3c5f57e3 262 nr_clients--;
3af45201 263 fio_put_client(client);
5121a9aa
JA
264}
265
343cb4a9
JA
266struct fio_client *fio_get_client(struct fio_client *client)
267{
268 client->refs++;
269 return client;
270}
271
fa2ea806
JA
272static void __fio_client_add_cmd_option(struct fio_client *client,
273 const char *opt)
81179eec 274{
39e8e016
JA
275 int index;
276
277 index = client->argc++;
81179eec 278 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
39e8e016
JA
279 client->argv[index] = strdup(opt);
280 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
81179eec
JA
281}
282
fa2ea806 283void fio_client_add_cmd_option(void *cookie, const char *opt)
81179eec 284{
bebe6398 285 struct fio_client *client = cookie;
3f3a4542 286 struct flist_head *entry;
81179eec 287
bebe6398 288 if (!client || !opt)
fa2ea806 289 return;
81179eec 290
fa2ea806 291 __fio_client_add_cmd_option(client, opt);
3f3a4542
JA
292
293 /*
294 * Duplicate arguments to shared client group
295 */
296 flist_for_each(entry, &arg_list) {
297 client = flist_entry(entry, struct fio_client, arg_list);
298
299 __fio_client_add_cmd_option(client, opt);
300 }
81179eec
JA
301}
302
a5276616
JA
303struct fio_client *fio_client_add_explicit(struct client_ops *ops,
304 const char *hostname, int type,
3ec62ec4
JA
305 int port)
306{
307 struct fio_client *client;
308
309 client = malloc(sizeof(*client));
310 memset(client, 0, sizeof(*client));
311
312 INIT_FLIST_HEAD(&client->list);
313 INIT_FLIST_HEAD(&client->hash_list);
314 INIT_FLIST_HEAD(&client->arg_list);
315 INIT_FLIST_HEAD(&client->eta_list);
316 INIT_FLIST_HEAD(&client->cmd_list);
317
318 client->hostname = strdup(hostname);
319
320 if (type == Fio_client_socket)
321 client->is_sock = 1;
322 else {
323 int ipv6;
324
325 ipv6 = type == Fio_client_ipv6;
3aa3ceeb 326 if (fio_server_parse_host(hostname, ipv6,
3ec62ec4
JA
327 &client->addr.sin_addr,
328 &client->addr6.sin6_addr))
329 goto err;
330
331 client->port = port;
332 }
333
334 client->fd = -1;
a5276616 335 client->ops = ops;
5121a9aa 336 client->refs = 1;
46bcd498 337 client->type = ops->client_type;
3ec62ec4
JA
338
339 __fio_client_add_cmd_option(client, "fio");
340
341 flist_add(&client->list, &client_list);
342 nr_clients++;
343 dprint(FD_NET, "client: added <%s>\n", client->hostname);
344 return client;
345err:
346 free(client);
347 return NULL;
348}
349
bb781643 350int fio_client_add_ini_file(void *cookie, const char *ini_file, bool remote)
14ea90ed
JA
351{
352 struct fio_client *client = cookie;
323255cc 353 struct client_file *cf;
14ea90ed 354 size_t new_size;
323255cc 355 void *new_files;
14ea90ed 356
ea91da21
JA
357 if (!client)
358 return 1;
359
14ea90ed
JA
360 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
361
323255cc
JA
362 new_size = (client->nr_files + 1) * sizeof(struct client_file);
363 new_files = realloc(client->files, new_size);
364 if (!new_files)
365 return 1;
366
367 client->files = new_files;
368 cf = &client->files[client->nr_files];
369 cf->file = strdup(ini_file);
370 cf->remote = remote;
371 client->nr_files++;
372 return 0;
14ea90ed
JA
373}
374
a5276616 375int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
132159a5 376{
3f3a4542 377 struct fio_client *existing = *cookie;
b66570dc 378 struct fio_client *client;
132159a5 379
3f3a4542
JA
380 if (existing) {
381 /*
382 * We always add our "exec" name as the option, hence 1
383 * means empty.
384 */
385 if (existing->argc == 1)
386 flist_add_tail(&existing->arg_list, &arg_list);
387 else {
388 while (!flist_empty(&arg_list))
389 flist_del_init(arg_list.next);
390 }
391 }
392
b66570dc 393 client = malloc(sizeof(*client));
a37f69b7 394 memset(client, 0, sizeof(*client));
81179eec 395
3c5f57e3 396 INIT_FLIST_HEAD(&client->list);
bebe6398 397 INIT_FLIST_HEAD(&client->hash_list);
3f3a4542 398 INIT_FLIST_HEAD(&client->arg_list);
82c1ed38 399 INIT_FLIST_HEAD(&client->eta_list);
89c1707c 400 INIT_FLIST_HEAD(&client->cmd_list);
3c5f57e3 401
bebe6398
JA
402 if (fio_server_parse_string(hostname, &client->hostname,
403 &client->is_sock, &client->port,
811826be
JA
404 &client->addr.sin_addr,
405 &client->addr6.sin6_addr,
406 &client->ipv6))
bebe6398 407 return -1;
87aa8f19 408
bebe6398 409 client->fd = -1;
a5276616 410 client->ops = ops;
5121a9aa 411 client->refs = 1;
46bcd498 412 client->type = ops->client_type;
3c5f57e3 413
81179eec
JA
414 __fio_client_add_cmd_option(client, "fio");
415
a37f69b7
JA
416 flist_add(&client->list, &client_list);
417 nr_clients++;
bebe6398
JA
418 dprint(FD_NET, "client: added <%s>\n", client->hostname);
419 *cookie = client;
420 return 0;
a37f69b7
JA
421}
422
ca09be4b
JA
423static const char *server_name(struct fio_client *client, char *buf,
424 size_t bufsize)
425{
426 const char *from;
427
428 if (client->ipv6)
429 from = inet_ntop(AF_INET6, (struct sockaddr *) &client->addr6.sin6_addr, buf, bufsize);
430 else if (client->is_sock)
431 from = "sock";
432 else
433 from = inet_ntop(AF_INET, (struct sockaddr *) &client->addr.sin_addr, buf, bufsize);
434
435 return from;
436}
437
d824c3b8
JA
438static void probe_client(struct fio_client *client)
439{
3989b143 440 struct cmd_client_probe_pdu pdu;
e8b60617 441 const char *sname;
3989b143 442 uint64_t tag;
ca09be4b 443 char buf[64];
3989b143 444
d824c3b8
JA
445 dprint(FD_NET, "client: send probe\n");
446
3989b143
JA
447#ifdef CONFIG_ZLIB
448 pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
449#else
450 pdu.flags = 0;
451#endif
452
e8b60617
JA
453 sname = server_name(client, buf, sizeof(buf));
454 memset(pdu.server, 0, sizeof(pdu.server));
455 strncpy((char *) pdu.server, sname, sizeof(pdu.server) - 1);
ca09be4b 456
3989b143 457 fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
d824c3b8
JA
458}
459
87aa8f19 460static int fio_client_connect_ip(struct fio_client *client)
a37f69b7 461{
811826be 462 struct sockaddr *addr;
67bf9823 463 socklen_t socklen;
811826be
JA
464 int fd, domain;
465
466 if (client->ipv6) {
467 client->addr6.sin6_family = AF_INET6;
468 client->addr6.sin6_port = htons(client->port);
469 domain = AF_INET6;
470 addr = (struct sockaddr *) &client->addr6;
471 socklen = sizeof(client->addr6);
472 } else {
473 client->addr.sin_family = AF_INET;
474 client->addr.sin_port = htons(client->port);
475 domain = AF_INET;
476 addr = (struct sockaddr *) &client->addr;
477 socklen = sizeof(client->addr);
478 }
132159a5 479
811826be 480 fd = socket(domain, SOCK_STREAM, 0);
132159a5 481 if (fd < 0) {
25095e1b
JA
482 int ret = -errno;
483
132159a5 484 log_err("fio: socket: %s\n", strerror(errno));
25095e1b 485 return ret;
132159a5
JA
486 }
487
811826be 488 if (connect(fd, addr, socklen) < 0) {
25095e1b
JA
489 int ret = -errno;
490
132159a5 491 log_err("fio: connect: %s\n", strerror(errno));
a7de0a11
JA
492 log_err("fio: failed to connect to %s:%u\n", client->hostname,
493 client->port);
b94cba47 494 close(fd);
25095e1b 495 return ret;
87aa8f19
JA
496 }
497
498 return fd;
499}
500
501static int fio_client_connect_sock(struct fio_client *client)
502{
503 struct sockaddr_un *addr = &client->addr_un;
67bf9823 504 socklen_t len;
87aa8f19
JA
505 int fd;
506
507 memset(addr, 0, sizeof(*addr));
508 addr->sun_family = AF_UNIX;
1cb96414 509 strncpy(addr->sun_path, client->hostname, sizeof(addr->sun_path) - 1);
87aa8f19
JA
510
511 fd = socket(AF_UNIX, SOCK_STREAM, 0);
512 if (fd < 0) {
25095e1b
JA
513 int ret = -errno;
514
87aa8f19 515 log_err("fio: socket: %s\n", strerror(errno));
25095e1b 516 return ret;
87aa8f19
JA
517 }
518
519 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
520 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
25095e1b
JA
521 int ret = -errno;
522
87aa8f19 523 log_err("fio: connect; %s\n", strerror(errno));
b94cba47 524 close(fd);
25095e1b 525 return ret;
132159a5
JA
526 }
527
87aa8f19
JA
528 return fd;
529}
530
2f99deb0 531int fio_client_connect(struct fio_client *client)
87aa8f19
JA
532{
533 int fd;
534
535 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
536
87aa8f19
JA
537 if (client->is_sock)
538 fd = fio_client_connect_sock(client);
539 else
540 fd = fio_client_connect_ip(client);
541
89c1707c
JA
542 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
543
87aa8f19 544 if (fd < 0)
a1a3ed51 545 return fd;
87aa8f19 546
b66570dc 547 client->fd = fd;
bebe6398 548 fio_client_add_hash(client);
81179eec 549 client->state = Client_connected;
d824c3b8
JA
550
551 probe_client(client);
132159a5
JA
552 return 0;
553}
554
0cf3ece0 555int fio_client_terminate(struct fio_client *client)
2f99deb0 556{
0cf3ece0 557 return fio_net_send_quit(client->fd);
2f99deb0
JA
558}
559
cc0df00a
JA
560void fio_clients_terminate(void)
561{
562 struct flist_head *entry;
563 struct fio_client *client;
564
60efd14e
JA
565 dprint(FD_NET, "client: terminate clients\n");
566
cc0df00a
JA
567 flist_for_each(entry, &client_list) {
568 client = flist_entry(entry, struct fio_client, list);
2f99deb0 569 fio_client_terminate(client);
cc0df00a
JA
570 }
571}
572
573static void sig_int(int sig)
574{
bebe6398 575 dprint(FD_NET, "client: got signal %d\n", sig);
cc0df00a
JA
576 fio_clients_terminate();
577}
578
579static void client_signal_handler(void)
580{
581 struct sigaction act;
582
583 memset(&act, 0, sizeof(act));
584 act.sa_handler = sig_int;
585 act.sa_flags = SA_RESTART;
586 sigaction(SIGINT, &act, NULL);
587
588 memset(&act, 0, sizeof(act));
589 act.sa_handler = sig_int;
590 act.sa_flags = SA_RESTART;
591 sigaction(SIGTERM, &act, NULL);
b852e7cf 592
2f694507
BC
593/* Windows uses SIGBREAK as a quit signal from other applications */
594#ifdef WIN32
595 memset(&act, 0, sizeof(act));
596 act.sa_handler = sig_int;
597 act.sa_flags = SA_RESTART;
598 sigaction(SIGBREAK, &act, NULL);
599#endif
600
b852e7cf
JA
601 memset(&act, 0, sizeof(act));
602 act.sa_handler = sig_show_status;
603 act.sa_flags = SA_RESTART;
604 sigaction(SIGUSR1, &act, NULL);
cc0df00a
JA
605}
606
81179eec
JA
607static int send_client_cmd_line(struct fio_client *client)
608{
fa2ea806
JA
609 struct cmd_single_line_pdu *cslp;
610 struct cmd_line_pdu *clp;
611 unsigned long offset;
7f868316 612 unsigned int *lens;
fa2ea806
JA
613 void *pdu;
614 size_t mem;
81179eec
JA
615 int i, ret;
616
39e8e016 617 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
60efd14e 618
7f868316
JA
619 lens = malloc(client->argc * sizeof(unsigned int));
620
fa2ea806
JA
621 /*
622 * Find out how much mem we need
623 */
7f868316
JA
624 for (i = 0, mem = 0; i < client->argc; i++) {
625 lens[i] = strlen(client->argv[i]) + 1;
626 mem += lens[i];
627 }
fa2ea806
JA
628
629 /*
630 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
631 */
632 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
633
634 pdu = malloc(mem);
635 clp = pdu;
636 offset = sizeof(*clp);
637
638 for (i = 0; i < client->argc; i++) {
7f868316 639 uint16_t arg_len = lens[i];
fa2ea806
JA
640
641 cslp = pdu + offset;
642 strcpy((char *) cslp->text, client->argv[i]);
643 cslp->len = cpu_to_le16(arg_len);
644 offset += sizeof(*cslp) + arg_len;
645 }
81179eec 646
7f868316 647 free(lens);
fa2ea806 648 clp->lines = cpu_to_le16(client->argc);
46bcd498 649 clp->client_type = __cpu_to_le16(client->type);
40c60516 650 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
81179eec
JA
651 free(pdu);
652 return ret;
653}
654
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655int fio_clients_connect(void)
656{
657 struct fio_client *client;
658 struct flist_head *entry, *tmp;
659 int ret;
660
93bcfd20
BC
661#ifdef WIN32
662 WSADATA wsd;
3c3ed070 663 WSAStartup(MAKEWORD(2, 2), &wsd);
93bcfd20
BC
664#endif
665
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JA
666 dprint(FD_NET, "client: connect all\n");
667
cc0df00a
JA
668 client_signal_handler();
669
a37f69b7
JA
670 flist_for_each_safe(entry, tmp, &client_list) {
671 client = flist_entry(entry, struct fio_client, list);
672
673 ret = fio_client_connect(client);
0b8f30a5 674 if (ret) {
a37f69b7 675 remove_client(client);
0b8f30a5
JA
676 continue;
677 }
678
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JA
679 if (client->argc > 1)
680 send_client_cmd_line(client);
a37f69b7
JA
681 }
682
683 return !nr_clients;
684}
685
b9d2f30a
JA
686int fio_start_client(struct fio_client *client)
687{
688 dprint(FD_NET, "client: start %s\n", client->hostname);
689 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
690}
691
692int fio_start_all_clients(void)
693{
694 struct fio_client *client;
695 struct flist_head *entry, *tmp;
696 int ret;
697
698 dprint(FD_NET, "client: start all\n");
699
952b05e0
CF
700 fio_client_json_init();
701
b9d2f30a
JA
702 flist_for_each_safe(entry, tmp, &client_list) {
703 client = flist_entry(entry, struct fio_client, list);
704
705 ret = fio_start_client(client);
706 if (ret) {
707 remove_client(client);
708 continue;
709 }
710 }
711
712 return flist_empty(&client_list);
713}
714
323255cc
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715static int __fio_client_send_remote_ini(struct fio_client *client,
716 const char *filename)
717{
718 struct cmd_load_file_pdu *pdu;
719 size_t p_size;
720 int ret;
721
722 dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
723
829c31b5 724 p_size = sizeof(*pdu) + strlen(filename) + 1;
323255cc 725 pdu = malloc(p_size);
829c31b5 726 memset(pdu, 0, p_size);
323255cc
JA
727 pdu->name_len = strlen(filename);
728 strcpy((char *) pdu->file, filename);
729 pdu->client_type = cpu_to_le16((uint16_t) client->type);
730
731 client->sent_job = 1;
732 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
733 free(pdu);
734 return ret;
735}
736
132159a5
JA
737/*
738 * Send file contents to server backend. We could use sendfile(), but to remain
739 * more portable lets just read/write the darn thing.
740 */
323255cc
JA
741static int __fio_client_send_local_ini(struct fio_client *client,
742 const char *filename)
132159a5 743{
46bcd498
JA
744 struct cmd_job_pdu *pdu;
745 size_t p_size;
132159a5 746 struct stat sb;
46bcd498
JA
747 char *p;
748 void *buf;
132159a5
JA
749 off_t len;
750 int fd, ret;
751
46c48f1f
JA
752 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
753
132159a5
JA
754 fd = open(filename, O_RDONLY);
755 if (fd < 0) {
8a1db9a1 756 ret = -errno;
e951bdc4 757 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
25095e1b 758 return ret;
132159a5
JA
759 }
760
761 if (fstat(fd, &sb) < 0) {
8a1db9a1 762 ret = -errno;
132159a5 763 log_err("fio: job file stat: %s\n", strerror(errno));
b94cba47 764 close(fd);
25095e1b 765 return ret;
132159a5
JA
766 }
767
46bcd498
JA
768 p_size = sb.st_size + sizeof(*pdu);
769 pdu = malloc(p_size);
770 buf = pdu->buf;
132159a5
JA
771
772 len = sb.st_size;
773 p = buf;
e5aa68b3 774 if (read_data(fd, p, len)) {
0b8f30a5 775 log_err("fio: failed reading job file %s\n", filename);
b94cba47 776 close(fd);
03a22d91 777 free(pdu);
0b8f30a5
JA
778 return 1;
779 }
780
46bcd498
JA
781 pdu->buf_len = __cpu_to_le32(sb.st_size);
782 pdu->client_type = cpu_to_le32(client->type);
783
c2cb6869 784 client->sent_job = 1;
40c60516 785 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
46bcd498 786 free(pdu);
b94cba47 787 close(fd);
132159a5
JA
788 return ret;
789}
37db14fe 790
323255cc 791int fio_client_send_ini(struct fio_client *client, const char *filename,
bb781643 792 bool remote)
9988ca70 793{
25095e1b
JA
794 int ret;
795
323255cc
JA
796 if (!remote)
797 ret = __fio_client_send_local_ini(client, filename);
798 else
799 ret = __fio_client_send_remote_ini(client, filename);
800
3af45201
JA
801 if (!ret)
802 client->sent_job = 1;
9988ca70 803
25095e1b 804 return ret;
9988ca70
JA
805}
806
323255cc
JA
807static int fio_client_send_cf(struct fio_client *client,
808 struct client_file *cf)
809{
810 return fio_client_send_ini(client, cf->file, cf->remote);
811}
812
a37f69b7
JA
813int fio_clients_send_ini(const char *filename)
814{
815 struct fio_client *client;
816 struct flist_head *entry, *tmp;
817
818 flist_for_each_safe(entry, tmp, &client_list) {
4d057f1f
JA
819 bool failed = false;
820
a37f69b7
JA
821 client = flist_entry(entry, struct fio_client, list);
822
323255cc 823 if (client->nr_files) {
14ea90ed
JA
824 int i;
825
323255cc
JA
826 for (i = 0; i < client->nr_files; i++) {
827 struct client_file *cf;
14ea90ed 828
323255cc
JA
829 cf = &client->files[i];
830
831 if (fio_client_send_cf(client, cf)) {
4d057f1f 832 failed = true;
14ea90ed
JA
833 remove_client(client);
834 break;
835 }
836 }
323255cc 837 }
4d057f1f 838 if (client->sent_job || failed)
323255cc
JA
839 continue;
840 if (!filename || fio_client_send_ini(client, filename, 0))
3af45201 841 remove_client(client);
a37f69b7
JA
842 }
843
844 return !nr_clients;
845}
846
40c60516
JA
847int fio_client_update_options(struct fio_client *client,
848 struct thread_options *o, uint64_t *tag)
849{
850 struct cmd_add_job_pdu pdu;
851
852 pdu.thread_number = cpu_to_le32(client->thread_number);
853 pdu.groupid = cpu_to_le32(client->groupid);
854 convert_thread_options_to_net(&pdu.top, o);
952b05e0 855
40c60516
JA
856 return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
857}
858
a64e88da
JA
859static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
860{
861 dst->max_val = le64_to_cpu(src->max_val);
862 dst->min_val = le64_to_cpu(src->min_val);
863 dst->samples = le64_to_cpu(src->samples);
802ad4a8
JA
864
865 /*
866 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
867 */
868 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
869 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
a64e88da
JA
870}
871
872static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
873{
874 int i, j;
875
2f122b13
JA
876 dst->error = le32_to_cpu(src->error);
877 dst->thread_number = le32_to_cpu(src->thread_number);
878 dst->groupid = le32_to_cpu(src->groupid);
879 dst->pid = le32_to_cpu(src->pid);
880 dst->members = le32_to_cpu(src->members);
771e58be 881 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
a64e88da 882
298921d6 883 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
a64e88da
JA
884 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
885 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
886 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
887 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
888 }
889
890 dst->usr_time = le64_to_cpu(src->usr_time);
891 dst->sys_time = le64_to_cpu(src->sys_time);
892 dst->ctx = le64_to_cpu(src->ctx);
893 dst->minf = le64_to_cpu(src->minf);
894 dst->majf = le64_to_cpu(src->majf);
895 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
988d97ba 896 dst->percentile_precision = le64_to_cpu(src->percentile_precision);
802ad4a8
JA
897
898 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
899 fio_fp64_t *fps = &src->percentile_list[i];
900 fio_fp64_t *fpd = &dst->percentile_list[i];
901
902 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
903 }
a64e88da
JA
904
905 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
906 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
907 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
908 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
909 }
910
911 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
912 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
913 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
914 }
915
298921d6 916 for (i = 0; i < DDIR_RWDIR_CNT; i++)
a64e88da
JA
917 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
918 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
919
78799deb 920 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
a64e88da 921 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
93eee04a 922 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
3bcb9d94 923 dst->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
a64e88da
JA
924 }
925
926 dst->total_submit = le64_to_cpu(src->total_submit);
927 dst->total_complete = le64_to_cpu(src->total_complete);
928
298921d6 929 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
a64e88da
JA
930 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
931 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
932 }
933
934 dst->total_run_time = le64_to_cpu(src->total_run_time);
935 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
936 dst->total_err_count = le64_to_cpu(src->total_err_count);
ddcc0b69
JA
937 dst->first_error = le32_to_cpu(src->first_error);
938 dst->kb_base = le32_to_cpu(src->kb_base);
ad705bcb 939 dst->unit_base = le32_to_cpu(src->unit_base);
3e260a46
JA
940
941 dst->latency_depth = le32_to_cpu(src->latency_depth);
942 dst->latency_target = le64_to_cpu(src->latency_target);
943 dst->latency_window = le64_to_cpu(src->latency_window);
944 dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
66347cfa
DE
945
946 dst->nr_block_infos = le64_to_cpu(src->nr_block_infos);
947 for (i = 0; i < dst->nr_block_infos; i++)
948 dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
a64e88da
JA
949}
950
951static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
952{
953 int i;
954
298921d6 955 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
a64e88da
JA
956 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
957 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
958 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
959 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
960 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
961 dst->agg[i] = le64_to_cpu(src->agg[i]);
962 }
963
964 dst->kb_base = le32_to_cpu(src->kb_base);
ad705bcb 965 dst->unit_base = le32_to_cpu(src->unit_base);
a64e88da 966 dst->groupid = le32_to_cpu(src->groupid);
771e58be 967 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
a64e88da
JA
968}
969
952b05e0 970static void json_object_add_client_info(struct json_object *obj,
9a4424c8 971 struct fio_client *client)
952b05e0 972{
9a4424c8
CF
973 const char *hostname = client->hostname ? client->hostname : "";
974
975 json_object_add_value_string(obj, "hostname", hostname);
952b05e0
CF
976 json_object_add_value_int(obj, "port", client->port);
977}
978
89e5fad9 979static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
a64e88da
JA
980{
981 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
0279b880 982 struct flist_head *opt_list = NULL;
952b05e0 983 struct json_object *tsobj;
a64e88da 984
0279b880
JA
985 if (client->opt_lists && p->ts.thread_number <= client->jobs)
986 opt_list = &client->opt_lists[p->ts.thread_number - 1];
987
988 tsobj = show_thread_status(&p->ts, &p->rs, opt_list, NULL);
108fea77 989 client->did_stat = 1;
952b05e0
CF
990 if (tsobj) {
991 json_object_add_client_info(tsobj, client);
992 json_array_add_value_object(clients_array, tsobj);
993 }
37f0c1ae 994
7b38411c 995 if (sum_stat_clients <= 1)
37f0c1ae
JA
996 return;
997
fd595830 998 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr == 1);
37f0c1ae
JA
999 sum_group_stats(&client_gs, &p->rs);
1000
1001 client_ts.members++;
2f122b13 1002 client_ts.thread_number = p->ts.thread_number;
37f0c1ae 1003 client_ts.groupid = p->ts.groupid;
771e58be 1004 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
37f0c1ae
JA
1005
1006 if (++sum_stat_nr == sum_stat_clients) {
1007 strcpy(client_ts.name, "All clients");
0279b880 1008 tsobj = show_thread_status(&client_ts, &client_gs, NULL, NULL);
952b05e0
CF
1009 if (tsobj) {
1010 json_object_add_client_info(tsobj, client);
1011 json_array_add_value_object(clients_array, tsobj);
1012 }
37f0c1ae 1013 }
a64e88da
JA
1014}
1015
89e5fad9 1016static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
a64e88da
JA
1017{
1018 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1019
84f1f865
JA
1020 if (output_format & FIO_OUTPUT_NORMAL)
1021 show_group_stats(gs, NULL);
a64e88da
JA
1022}
1023
0279b880
JA
1024static void handle_job_opt(struct fio_client *client, struct fio_net_cmd *cmd)
1025{
1026 struct cmd_job_option *pdu = (struct cmd_job_option *) cmd->payload;
1027 struct print_option *p;
1028
b127b679
JA
1029 if (!job_opt_object)
1030 return;
1031
0279b880 1032 pdu->global = le16_to_cpu(pdu->global);
bc0fec0e
JA
1033 pdu->truncated = le16_to_cpu(pdu->truncated);
1034 pdu->groupid = le32_to_cpu(pdu->groupid);
0279b880
JA
1035
1036 p = malloc(sizeof(*p));
1037 p->name = strdup((char *) pdu->name);
1038 if (pdu->value[0] != '\0')
1039 p->value = strdup((char *) pdu->value);
1040 else
1041 p->value = NULL;
1042
1043 if (pdu->global) {
1044 const char *pos = "";
1045
1046 if (p->value)
1047 pos = p->value;
1048
1049 json_object_add_value_string(job_opt_object, p->name, pos);
1050 } else if (client->opt_lists) {
1051 struct flist_head *opt_list = &client->opt_lists[pdu->groupid];
1052
1053 flist_add_tail(&p->list, opt_list);
1054 }
1055}
1056
3bf236c0
JA
1057static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
1058{
1059 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1060 const char *buf = (const char *) pdu->buf;
1061 const char *name;
1062 int fio_unused ret;
1063
1064 name = client->name ? client->name : client->hostname;
1065
1066 if (!client->skip_newline)
1067 fprintf(f_out, "<%s> ", name);
1068 ret = fwrite(buf, pdu->buf_len, 1, f_out);
1069 fflush(f_out);
1070 client->skip_newline = strchr(buf, '\n') == NULL;
1071}
1072
d09a64a0
JA
1073static void convert_agg(struct disk_util_agg *agg)
1074{
1075 int i;
1076
1077 for (i = 0; i < 2; i++) {
504bc961
JA
1078 agg->ios[i] = le64_to_cpu(agg->ios[i]);
1079 agg->merges[i] = le64_to_cpu(agg->merges[i]);
d09a64a0 1080 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
504bc961 1081 agg->ticks[i] = le64_to_cpu(agg->ticks[i]);
d09a64a0
JA
1082 }
1083
504bc961
JA
1084 agg->io_ticks = le64_to_cpu(agg->io_ticks);
1085 agg->time_in_queue = le64_to_cpu(agg->time_in_queue);
d09a64a0 1086 agg->slavecount = le32_to_cpu(agg->slavecount);
e5c9093d 1087 agg->max_util.u.f = fio_uint64_to_double(le64_to_cpu(agg->max_util.u.i));
d09a64a0
JA
1088}
1089
1090static void convert_dus(struct disk_util_stat *dus)
1091{
1092 int i;
1093
1094 for (i = 0; i < 2; i++) {
504bc961
JA
1095 dus->s.ios[i] = le64_to_cpu(dus->s.ios[i]);
1096 dus->s.merges[i] = le64_to_cpu(dus->s.merges[i]);
a3b4cf7d 1097 dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
504bc961 1098 dus->s.ticks[i] = le64_to_cpu(dus->s.ticks[i]);
d09a64a0
JA
1099 }
1100
504bc961
JA
1101 dus->s.io_ticks = le64_to_cpu(dus->s.io_ticks);
1102 dus->s.time_in_queue = le64_to_cpu(dus->s.time_in_queue);
a3b4cf7d 1103 dus->s.msec = le64_to_cpu(dus->s.msec);
d09a64a0
JA
1104}
1105
1106static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
1107{
1108 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1109
d09a64a0
JA
1110 if (!client->disk_stats_shown) {
1111 client->disk_stats_shown = 1;
1112 log_info("\nDisk stats (read/write):\n");
1113 }
1114
01cfefcc 1115 if (output_format & FIO_OUTPUT_JSON) {
952b05e0
CF
1116 struct json_object *duobj;
1117 json_array_add_disk_util(&du->dus, &du->agg, du_array);
1118 duobj = json_array_last_value_object(du_array);
1119 json_object_add_client_info(duobj, client);
01cfefcc
JA
1120 }
1121 if (output_format & FIO_OUTPUT_TERSE)
1122 print_disk_util(&du->dus, &du->agg, 1, NULL);
1123 if (output_format & FIO_OUTPUT_NORMAL)
1124 print_disk_util(&du->dus, &du->agg, 0, NULL);
d09a64a0
JA
1125}
1126
3bf236c0 1127static void convert_jobs_eta(struct jobs_eta *je)
cf451d1e 1128{
cf451d1e
JA
1129 int i;
1130
1131 je->nr_running = le32_to_cpu(je->nr_running);
1132 je->nr_ramp = le32_to_cpu(je->nr_ramp);
1133 je->nr_pending = le32_to_cpu(je->nr_pending);
714e85f3 1134 je->nr_setting_up = le32_to_cpu(je->nr_setting_up);
cf451d1e 1135 je->files_open = le32_to_cpu(je->files_open);
cf451d1e 1136
298921d6
JA
1137 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1138 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
1139 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
1140 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
1141 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
16725bb0
JA
1142 je->rate[i] = le32_to_cpu(je->rate[i]);
1143 je->iops[i] = le32_to_cpu(je->iops[i]);
cf451d1e
JA
1144 }
1145
b51eedb7 1146 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
cf451d1e 1147 je->eta_sec = le64_to_cpu(je->eta_sec);
8c621fb2 1148 je->nr_threads = le32_to_cpu(je->nr_threads);
b7f05eb0 1149 je->is_pow2 = le32_to_cpu(je->is_pow2);
ed2c0a12 1150 je->unit_base = le32_to_cpu(je->unit_base);
48fbb46e
JA
1151}
1152
3e47bd25 1153void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
48fbb46e 1154{
48fbb46e
JA
1155 int i;
1156
1157 dst->nr_running += je->nr_running;
1158 dst->nr_ramp += je->nr_ramp;
1159 dst->nr_pending += je->nr_pending;
714e85f3 1160 dst->nr_setting_up += je->nr_setting_up;
48fbb46e 1161 dst->files_open += je->files_open;
48fbb46e 1162
298921d6 1163 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
3e47bd25
JA
1164 dst->m_rate[i] += je->m_rate[i];
1165 dst->t_rate[i] += je->t_rate[i];
1166 dst->m_iops[i] += je->m_iops[i];
1167 dst->t_iops[i] += je->t_iops[i];
16725bb0
JA
1168 dst->rate[i] += je->rate[i];
1169 dst->iops[i] += je->iops[i];
48fbb46e
JA
1170 }
1171
1172 dst->elapsed_sec += je->elapsed_sec;
1173
1174 if (je->eta_sec > dst->eta_sec)
1175 dst->eta_sec = je->eta_sec;
8c621fb2
JA
1176
1177 dst->nr_threads += je->nr_threads;
afe22d3d
JA
1178
1179 /*
1180 * This wont be correct for multiple strings, but at least it
1181 * works for the basic cases.
1182 */
1183 strcpy((char *) dst->run_str, (char *) je->run_str);
48fbb46e
JA
1184}
1185
89c1707c
JA
1186static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
1187{
40c60516 1188 struct fio_net_cmd_reply *reply = NULL;
89c1707c
JA
1189 struct flist_head *entry;
1190
1191 flist_for_each(entry, &client->cmd_list) {
40c60516 1192 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
89c1707c 1193
40c60516 1194 if (cmd->tag == (uintptr_t) reply)
89c1707c
JA
1195 break;
1196
40c60516 1197 reply = NULL;
89c1707c
JA
1198 }
1199
40c60516 1200 if (!reply) {
4e0a8fa2 1201 log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
89c1707c
JA
1202 return;
1203 }
1204
40c60516
JA
1205 flist_del(&reply->list);
1206 cmd->tag = reply->saved_tag;
1207 free(reply);
1208}
1209
1210int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
1211{
1212 do {
1213 struct fio_net_cmd_reply *reply = NULL;
1214 struct flist_head *entry;
1215
1216 flist_for_each(entry, &client->cmd_list) {
1217 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1218
1219 if (tag == (uintptr_t) reply)
1220 break;
1221
1222 reply = NULL;
1223 }
1224
1225 if (!reply)
1226 break;
1227
1228 usleep(1000);
1229 } while (1);
1230
1231 return 0;
89c1707c
JA
1232}
1233
82c1ed38 1234static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
48fbb46e
JA
1235{
1236 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
df380934 1237 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
af9c9fb3
JA
1238
1239 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
cf451d1e 1240
f77d2676
JA
1241 assert(client->eta_in_flight == eta);
1242
1243 client->eta_in_flight = NULL;
82c1ed38 1244 flist_del_init(&client->eta_list);
a64c13a4 1245 client->eta_timeouts = 0;
82c1ed38 1246
2f99deb0
JA
1247 if (client->ops->jobs_eta)
1248 client->ops->jobs_eta(client, je);
1249
3e47bd25 1250 fio_client_sum_jobs_eta(&eta->eta, je);
a5276616 1251 fio_client_dec_jobs_eta(eta, client->ops->eta);
cf451d1e
JA
1252}
1253
3da1d33a
JA
1254static int fio_client_handle_iolog(struct fio_client *client,
1255 struct fio_net_cmd *cmd)
bead01d7 1256{
0cba0f91
JA
1257 struct cmd_iolog_pdu *pdu;
1258 bool store_direct;
bead01d7 1259
0cba0f91 1260 pdu = convert_iolog(cmd, &store_direct);
3da1d33a
JA
1261 if (!pdu) {
1262 log_err("fio: failed converting IO log\n");
1263 return 1;
1264 }
bead01d7 1265
0cba0f91
JA
1266 if (store_direct) {
1267 ssize_t ret;
1268 size_t sz;
1269 int fd;
1270
1271 fd = open((const char *) pdu->name,
1272 O_WRONLY | O_CREAT | O_TRUNC, 0644);
1273 if (fd < 0) {
3da1d33a
JA
1274 log_err("fio: open log: %s\n", strerror(errno));
1275 return 1;
0cba0f91 1276 }
3da1d33a 1277
0cba0f91
JA
1278 sz = cmd->pdu_len - sizeof(*pdu);
1279 ret = write(fd, pdu->samples, sz);
0cba0f91 1280 close(fd);
3da1d33a
JA
1281
1282 if (ret != sz) {
1283 log_err("fio: short write on compressed log\n");
1284 return 1;
1285 }
1286
1287 return 0;
0cba0f91
JA
1288 } else {
1289 FILE *f;
1290
1291 f = fopen((const char *) pdu->name, "w");
1292 if (!f) {
3da1d33a
JA
1293 log_err("fio: fopen log: %s\n", strerror(errno));
1294 return 1;
0cba0f91
JA
1295 }
1296
1297 flush_samples(f, pdu->samples,
1298 pdu->nr_samples * sizeof(struct io_sample));
1299 fclose(f);
3da1d33a 1300 return 0;
0cba0f91 1301 }
bead01d7
JA
1302}
1303
b5296ddb 1304static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
2e03b4b2 1305{
3989b143 1306 struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
d2333358
JA
1307 const char *os, *arch;
1308 char bit[16];
2e03b4b2 1309
cca84643
JA
1310 os = fio_get_os_string(probe->os);
1311 if (!os)
1312 os = "unknown";
1313
1314 arch = fio_get_arch_string(probe->arch);
1315 if (!arch)
1316 os = "unknown";
1317
d2333358 1318 sprintf(bit, "%d-bit", probe->bpp * 8);
3989b143 1319 probe->flags = le64_to_cpu(probe->flags);
38fdef22 1320
3989b143 1321 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
38fdef22 1322 probe->hostname, probe->bigendian, bit, os, arch,
3989b143 1323 probe->fio_version, (unsigned long) probe->flags);
b5296ddb
JA
1324
1325 if (!client->name)
1326 client->name = strdup((char *) probe->hostname);
2e03b4b2
JA
1327}
1328
11e950bd
JA
1329static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
1330{
1331 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1332
1333 client->state = Client_started;
1334 client->jobs = le32_to_cpu(pdu->jobs);
a89d5319 1335 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
108fea77 1336
0279b880
JA
1337 if (client->jobs) {
1338 int i;
1339
1340 if (client->opt_lists)
1341 free(client->opt_lists);
1342
1343 client->opt_lists = malloc(client->jobs * sizeof(struct flist_head));
1344 for (i = 0; i < client->jobs; i++)
1345 INIT_FLIST_HEAD(&client->opt_lists[i]);
1346 }
1347
a89d5319 1348 sum_stat_clients += client->nr_stat;
11e950bd
JA
1349}
1350
1351static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
1352{
498c92c2
JA
1353 if (client->error)
1354 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
11e950bd
JA
1355}
1356
6b79c80c
JA
1357static void convert_stop(struct fio_net_cmd *cmd)
1358{
1359 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1360
1361 pdu->error = le32_to_cpu(pdu->error);
1362}
1363
084d1c6f
JA
1364static void convert_text(struct fio_net_cmd *cmd)
1365{
1366 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1367
1368 pdu->level = le32_to_cpu(pdu->level);
1369 pdu->buf_len = le32_to_cpu(pdu->buf_len);
1370 pdu->log_sec = le64_to_cpu(pdu->log_sec);
1371 pdu->log_usec = le64_to_cpu(pdu->log_usec);
1372}
1373
3989b143
JA
1374static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
1375 struct cmd_iolog_pdu *pdu)
1b42725f 1376{
3989b143 1377#ifdef CONFIG_ZLIB
1b42725f 1378 struct cmd_iolog_pdu *ret;
1b42725f 1379 z_stream stream;
3989b143
JA
1380 uint32_t nr_samples;
1381 size_t total;
1b42725f
JA
1382 void *p;
1383
1384 stream.zalloc = Z_NULL;
1385 stream.zfree = Z_NULL;
1386 stream.opaque = Z_NULL;
1387 stream.avail_in = 0;
1388 stream.next_in = Z_NULL;
1389
1390 if (inflateInit(&stream) != Z_OK)
1391 return NULL;
1392
1393 /*
f5ed765a 1394 * Get header first, it's not compressed
1b42725f 1395 */
3c865f32 1396 nr_samples = le64_to_cpu(pdu->nr_samples);
1b42725f 1397
3c865f32 1398 total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
f5ed765a 1399 ret = malloc(total + sizeof(*pdu));
1b42725f 1400 ret->nr_samples = nr_samples;
3989b143
JA
1401
1402 memcpy(ret, pdu, sizeof(*pdu));
f5ed765a
JA
1403
1404 p = (void *) ret + sizeof(*pdu);
1b42725f 1405
f5ed765a
JA
1406 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
1407 stream.next_in = (void *) pdu + sizeof(*pdu);
1b42725f
JA
1408 while (stream.avail_in) {
1409 unsigned int this_chunk = 65536;
1410 unsigned int this_len;
1411 int err;
1412
1413 if (this_chunk > total)
1414 this_chunk = total;
1415
1416 stream.avail_out = this_chunk;
1417 stream.next_out = p;
1418 err = inflate(&stream, Z_NO_FLUSH);
3c547fe0
JA
1419 /* may be Z_OK, or Z_STREAM_END */
1420 if (err < 0) {
1b42725f 1421 log_err("fio: inflate error %d\n", err);
f5ed765a
JA
1422 free(ret);
1423 ret = NULL;
3989b143 1424 goto err;
1b42725f
JA
1425 }
1426
1427 this_len = this_chunk - stream.avail_out;
1428 p += this_len;
1429 total -= this_len;
1430 }
1431
3989b143
JA
1432err:
1433 inflateEnd(&stream);
1434 return ret;
1435#else
1436 return NULL;
1437#endif
1438}
1439
1440/*
1441 * This has been compressed on the server side, since it can be big.
1442 * Uncompress here.
1443 */
0cba0f91
JA
1444static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
1445 bool *store_direct)
3989b143
JA
1446{
1447 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
1448 struct cmd_iolog_pdu *ret;
ae588852 1449 uint64_t i;
0cba0f91 1450 int compressed;
ae588852 1451 void *samples;
3989b143 1452
0cba0f91
JA
1453 *store_direct = false;
1454
3989b143
JA
1455 /*
1456 * Convert if compressed and we support it. If it's not
1457 * compressed, we need not do anything.
1458 */
0cba0f91
JA
1459 compressed = le32_to_cpu(pdu->compressed);
1460 if (compressed == XMIT_COMPRESSED) {
3989b143
JA
1461#ifndef CONFIG_ZLIB
1462 log_err("fio: server sent compressed data by mistake\n");
1463 return NULL;
1464#endif
1465 ret = convert_iolog_gz(cmd, pdu);
1466 if (!ret) {
1467 log_err("fio: failed decompressing log\n");
1468 return NULL;
1469 }
0cba0f91
JA
1470 } else if (compressed == STORE_COMPRESSED) {
1471 *store_direct = true;
1472 ret = pdu;
3989b143
JA
1473 } else
1474 ret = pdu;
1475
ae588852 1476 ret->nr_samples = le64_to_cpu(ret->nr_samples);
3989b143 1477 ret->thread_number = le32_to_cpu(ret->thread_number);
3989b143
JA
1478 ret->log_type = le32_to_cpu(ret->log_type);
1479 ret->compressed = le32_to_cpu(ret->compressed);
ae588852 1480 ret->log_offset = le32_to_cpu(ret->log_offset);
3989b143 1481
0cba0f91
JA
1482 if (*store_direct)
1483 return ret;
1484
3310fced 1485 samples = &ret->samples[0];
f5ed765a 1486 for (i = 0; i < ret->nr_samples; i++) {
ae588852 1487 struct io_sample *s;
f5ed765a 1488
ae588852 1489 s = __get_sample(samples, ret->log_offset, i);
b26317c9
JA
1490 s->time = le64_to_cpu(s->time);
1491 s->val = le64_to_cpu(s->val);
1492 s->__ddir = le32_to_cpu(s->__ddir);
1493 s->bs = le32_to_cpu(s->bs);
ae588852
JA
1494
1495 if (ret->log_offset) {
1496 struct io_sample_offset *so = (void *) s;
1497
1498 so->offset = le64_to_cpu(so->offset);
1499 }
f5ed765a
JA
1500 }
1501
1b42725f
JA
1502 return ret;
1503}
1504
ca09be4b
JA
1505static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
1506 size_t size, uint64_t tag)
1507{
1508 rep->error = cpu_to_le32(rep->error);
1509 fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
1510}
1511
0748d801
JA
1512static int fio_send_file(struct fio_client *client, struct cmd_sendfile *pdu,
1513 uint64_t tag)
ca09be4b
JA
1514{
1515 struct cmd_sendfile_reply *rep;
1516 struct stat sb;
1517 size_t size;
1518 int fd;
1519
1520 size = sizeof(*rep);
1521 rep = malloc(size);
1522
1523 if (stat((char *)pdu->path, &sb) < 0) {
1524fail:
1525 rep->error = errno;
1526 sendfile_reply(client->fd, rep, size, tag);
1527 free(rep);
1528 return 1;
1529 }
1530
1531 size += sb.st_size;
1532 rep = realloc(rep, size);
1533 rep->size = cpu_to_le32((uint32_t) sb.st_size);
1534
1535 fd = open((char *)pdu->path, O_RDONLY);
1536 if (fd == -1 )
1537 goto fail;
1538
1539 rep->error = read_data(fd, &rep->data, sb.st_size);
1540 sendfile_reply(client->fd, rep, size, tag);
1541 free(rep);
1542 close(fd);
1543 return 0;
1544}
1545
a5276616 1546int fio_handle_client(struct fio_client *client)
37db14fe 1547{
a5276616 1548 struct client_ops *ops = client->ops;
37db14fe
JA
1549 struct fio_net_cmd *cmd;
1550
60efd14e
JA
1551 dprint(FD_NET, "client: handle %s\n", client->hostname);
1552
54e62ad4 1553 cmd = fio_net_recv_cmd(client->fd, true);
e951bdc4
JA
1554 if (!cmd)
1555 return 0;
c2c94585 1556
b9d2f30a
JA
1557 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1558 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
46c48f1f 1559
e951bdc4
JA
1560 switch (cmd->opcode) {
1561 case FIO_NET_CMD_QUIT:
3ec62ec4 1562 if (ops->quit)
35c0ba7f 1563 ops->quit(client, cmd);
e951bdc4 1564 remove_client(client);
e951bdc4 1565 break;
084d1c6f
JA
1566 case FIO_NET_CMD_TEXT:
1567 convert_text(cmd);
35c0ba7f 1568 ops->text(client, cmd);
e951bdc4 1569 break;
3bf236c0
JA
1570 case FIO_NET_CMD_DU: {
1571 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1572
1573 convert_dus(&du->dus);
1574 convert_agg(&du->agg);
1575
dd366728 1576 ops->disk_util(client, cmd);
d09a64a0 1577 break;
3bf236c0
JA
1578 }
1579 case FIO_NET_CMD_TS: {
1580 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1581
1582 convert_ts(&p->ts, &p->ts);
1583 convert_gs(&p->rs, &p->rs);
1584
89e5fad9 1585 ops->thread_status(client, cmd);
e951bdc4 1586 break;
3bf236c0
JA
1587 }
1588 case FIO_NET_CMD_GS: {
1589 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1590
1591 convert_gs(gs, gs);
1592
89e5fad9 1593 ops->group_stats(client, cmd);
e951bdc4 1594 break;
3bf236c0
JA
1595 }
1596 case FIO_NET_CMD_ETA: {
1597 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1598
89c1707c 1599 remove_reply_cmd(client, cmd);
3bf236c0 1600 convert_jobs_eta(je);
a5276616 1601 handle_eta(client, cmd);
e951bdc4 1602 break;
3bf236c0 1603 }
e951bdc4 1604 case FIO_NET_CMD_PROBE:
89c1707c 1605 remove_reply_cmd(client, cmd);
dd366728 1606 ops->probe(client, cmd);
e951bdc4 1607 break;
5d7793aa 1608 case FIO_NET_CMD_SERVER_START:
01be038e 1609 client->state = Client_running;
85dd01e7
JA
1610 if (ops->job_start)
1611 ops->job_start(client, cmd);
01be038e 1612 break;
85dd01e7
JA
1613 case FIO_NET_CMD_START: {
1614 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1615
1616 pdu->jobs = le32_to_cpu(pdu->jobs);
1617 ops->start(client, cmd);
e951bdc4 1618 break;
85dd01e7 1619 }
6b79c80c
JA
1620 case FIO_NET_CMD_STOP: {
1621 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1622
1623 convert_stop(cmd);
1624 client->state = Client_stopped;
122c7725
JA
1625 client->error = le32_to_cpu(pdu->error);
1626 client->signal = le32_to_cpu(pdu->signal);
6b79c80c 1627 ops->stop(client, cmd);
e951bdc4 1628 break;
6b79c80c 1629 }
40c60516
JA
1630 case FIO_NET_CMD_ADD_JOB: {
1631 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1632
1633 client->thread_number = le32_to_cpu(pdu->thread_number);
1634 client->groupid = le32_to_cpu(pdu->groupid);
1635
807f9971
JA
1636 if (ops->add_job)
1637 ops->add_job(client, cmd);
807f9971 1638 break;
40c60516 1639 }
1b42725f 1640 case FIO_NET_CMD_IOLOG:
0cba0f91 1641 fio_client_handle_iolog(client, cmd);
1b42725f 1642 break;
40c60516 1643 case FIO_NET_CMD_UPDATE_JOB:
40c60516 1644 ops->update_job(client, cmd);
649cee91 1645 remove_reply_cmd(client, cmd);
40c60516 1646 break;
ca09be4b
JA
1647 case FIO_NET_CMD_VTRIGGER: {
1648 struct all_io_list *pdu = (struct all_io_list *) cmd->payload;
d264264a
JA
1649 char buf[128];
1650 int off = 0;
ca09be4b 1651
d264264a
JA
1652 if (aux_path) {
1653 strcpy(buf, aux_path);
1654 off = strlen(buf);
1655 }
1656
1657 __verify_save_state(pdu, server_name(client, &buf[off], sizeof(buf) - off));
13c70218 1658 exec_trigger(trigger_cmd);
ca09be4b
JA
1659 break;
1660 }
1661 case FIO_NET_CMD_SENDFILE: {
1662 struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
0748d801 1663 fio_send_file(client, pdu, cmd->tag);
ca09be4b
JA
1664 break;
1665 }
0279b880
JA
1666 case FIO_NET_CMD_JOB_OPT: {
1667 handle_job_opt(client, cmd);
1668 break;
1669 }
e951bdc4 1670 default:
89c1707c 1671 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
e951bdc4 1672 break;
37db14fe
JA
1673 }
1674
ca09be4b 1675 free(cmd);
e951bdc4 1676 return 1;
37db14fe 1677}
b66570dc 1678
ca09be4b
JA
1679int fio_clients_send_trigger(const char *cmd)
1680{
1681 struct flist_head *entry;
1682 struct fio_client *client;
1683 size_t slen;
1684
1685 dprint(FD_NET, "client: send vtrigger: %s\n", cmd);
1686
1687 if (!cmd)
1688 slen = 0;
1689 else
1690 slen = strlen(cmd);
1691
1692 flist_for_each(entry, &client_list) {
1693 struct cmd_vtrigger_pdu *pdu;
1694
1695 client = flist_entry(entry, struct fio_client, list);
1696
1697 pdu = malloc(sizeof(*pdu) + slen);
1698 pdu->len = cpu_to_le16((uint16_t) slen);
1699 if (slen)
1700 memcpy(pdu->cmd, cmd, slen);
1701 fio_net_send_cmd(client->fd, FIO_NET_CMD_VTRIGGER, pdu,
1702 sizeof(*pdu) + slen, NULL, NULL);
1703 free(pdu);
1704 }
1705
1706 return 0;
1707}
1708
a5276616 1709static void request_client_etas(struct client_ops *ops)
af9c9fb3
JA
1710{
1711 struct fio_client *client;
1712 struct flist_head *entry;
1713 struct client_eta *eta;
82c1ed38 1714 int skipped = 0;
af9c9fb3
JA
1715
1716 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1717
afe22d3d 1718 eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
af9c9fb3
JA
1719 eta->pending = nr_clients;
1720
1721 flist_for_each(entry, &client_list) {
1722 client = flist_entry(entry, struct fio_client, list);
1723
82c1ed38
JA
1724 if (!flist_empty(&client->eta_list)) {
1725 skipped++;
1726 continue;
1727 }
01be038e
JA
1728 if (client->state != Client_running)
1729 continue;
82c1ed38 1730
f77d2676 1731 assert(!client->eta_in_flight);
82c1ed38 1732 flist_add_tail(&client->eta_list, &eta_list);
f77d2676 1733 client->eta_in_flight = eta;
af9c9fb3 1734 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
df380934 1735 (uintptr_t) eta, &client->cmd_list);
af9c9fb3
JA
1736 }
1737
f02f7dac
JA
1738 while (skipped--) {
1739 if (!fio_client_dec_jobs_eta(eta, ops->eta))
1740 break;
1741 }
82c1ed38 1742
af9c9fb3
JA
1743 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1744}
1745
a64c13a4
JA
1746/*
1747 * A single SEND_ETA timeout isn't fatal. Attempt to recover.
1748 */
1749static int handle_cmd_timeout(struct fio_client *client,
1750 struct fio_net_cmd_reply *reply)
1751{
be6fa258
JA
1752 flist_del(&reply->list);
1753 free(reply);
1754
a64c13a4
JA
1755 if (reply->opcode != FIO_NET_CMD_SEND_ETA)
1756 return 1;
1757
1758 log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
a64c13a4
JA
1759
1760 flist_del_init(&client->eta_list);
1761 if (client->eta_in_flight) {
1762 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
1763 client->eta_in_flight = NULL;
1764 }
1765
1766 /*
1767 * If we fail 5 in a row, give up...
1768 */
1769 if (client->eta_timeouts++ > 5)
1770 return 1;
1771
1772 return 0;
1773}
1774
89c1707c
JA
1775static int client_check_cmd_timeout(struct fio_client *client,
1776 struct timeval *now)
1777{
40c60516 1778 struct fio_net_cmd_reply *reply;
89c1707c
JA
1779 struct flist_head *entry, *tmp;
1780 int ret = 0;
1781
1782 flist_for_each_safe(entry, tmp, &client->cmd_list) {
40c60516 1783 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
89c1707c 1784
40c60516 1785 if (mtime_since(&reply->tv, now) < FIO_NET_CLIENT_TIMEOUT)
89c1707c
JA
1786 continue;
1787
a64c13a4
JA
1788 if (!handle_cmd_timeout(client, reply))
1789 continue;
1790
89c1707c 1791 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
40c60516 1792 fio_server_op(reply->opcode));
89c1707c
JA
1793 ret = 1;
1794 }
1795
1796 return flist_empty(&client->cmd_list) && ret;
1797}
1798
a5276616 1799static int fio_check_clients_timed_out(void)
89c1707c
JA
1800{
1801 struct fio_client *client;
1802 struct flist_head *entry, *tmp;
1803 struct timeval tv;
1804 int ret = 0;
1805
67bf9823 1806 fio_gettime(&tv, NULL);
89c1707c
JA
1807
1808 flist_for_each_safe(entry, tmp, &client_list) {
1809 client = flist_entry(entry, struct fio_client, list);
1810
1811 if (flist_empty(&client->cmd_list))
1812 continue;
1813
1814 if (!client_check_cmd_timeout(client, &tv))
1815 continue;
1816
a5276616
JA
1817 if (client->ops->timed_out)
1818 client->ops->timed_out(client);
ed727a46
JA
1819 else
1820 log_err("fio: client %s timed out\n", client->hostname);
1821
f9a33cc0 1822 client->error = ETIMEDOUT;
89c1707c
JA
1823 remove_client(client);
1824 ret = 1;
1825 }
1826
1827 return ret;
1828}
1829
dd366728 1830int fio_handle_clients(struct client_ops *ops)
b66570dc 1831{
b66570dc 1832 struct pollfd *pfds;
498c92c2 1833 int i, ret = 0, retval = 0;
b66570dc 1834
67bf9823 1835 fio_gettime(&eta_tv, NULL);
af9c9fb3 1836
b66570dc
JA
1837 pfds = malloc(nr_clients * sizeof(struct pollfd));
1838
37f0c1ae
JA
1839 init_thread_stat(&client_ts);
1840 init_group_run_stat(&client_gs);
1841
82a4be1b 1842 while (!exit_backend && nr_clients) {
c2cb6869
JA
1843 struct flist_head *entry, *tmp;
1844 struct fio_client *client;
1845
82a4be1b 1846 i = 0;
c2cb6869 1847 flist_for_each_safe(entry, tmp, &client_list) {
82a4be1b 1848 client = flist_entry(entry, struct fio_client, list);
b66570dc 1849
a5276616 1850 if (!client->sent_job && !client->ops->stay_connected &&
c2cb6869
JA
1851 flist_empty(&client->cmd_list)) {
1852 remove_client(client);
1853 continue;
1854 }
1855
82a4be1b
JA
1856 pfds[i].fd = client->fd;
1857 pfds[i].events = POLLIN;
1858 i++;
1859 }
1860
c2cb6869
JA
1861 if (!nr_clients)
1862 break;
1863
82a4be1b 1864 assert(i == nr_clients);
b66570dc 1865
5c2857f9 1866 do {
af9c9fb3 1867 struct timeval tv;
ca09be4b 1868 int timeout;
af9c9fb3 1869
67bf9823 1870 fio_gettime(&tv, NULL);
af9c9fb3 1871 if (mtime_since(&eta_tv, &tv) >= 900) {
a5276616 1872 request_client_etas(ops);
af9c9fb3 1873 memcpy(&eta_tv, &tv, sizeof(tv));
89c1707c 1874
a5276616 1875 if (fio_check_clients_timed_out())
89c1707c 1876 break;
af9c9fb3
JA
1877 }
1878
ca09be4b
JA
1879 check_trigger_file();
1880
1881 timeout = min(100u, ops->eta_msec);
1882
1883 ret = poll(pfds, nr_clients, timeout);
5c2857f9
JA
1884 if (ret < 0) {
1885 if (errno == EINTR)
1886 continue;
1887 log_err("fio: poll clients: %s\n", strerror(errno));
1888 break;
1889 } else if (!ret)
b66570dc 1890 continue;
5c2857f9 1891 } while (ret <= 0);
b66570dc
JA
1892
1893 for (i = 0; i < nr_clients; i++) {
1894 if (!(pfds[i].revents & POLLIN))
1895 continue;
1896
1897 client = find_client_by_fd(pfds[i].fd);
1898 if (!client) {
65e1a120 1899 log_err("fio: unknown client fd %ld\n", (long) pfds[i].fd);
b66570dc
JA
1900 continue;
1901 }
a5276616 1902 if (!fio_handle_client(client)) {
28d3ab07
JA
1903 log_info("client: host=%s disconnected\n",
1904 client->hostname);
1905 remove_client(client);
498c92c2 1906 retval = 1;
38990764 1907 } else if (client->error)
498c92c2 1908 retval = 1;
343cb4a9 1909 fio_put_client(client);
b66570dc
JA
1910 }
1911 }
1912
952b05e0
CF
1913 fio_client_json_fini();
1914
b66570dc 1915 free(pfds);
f9a33cc0 1916 return retval || error_clients;
b66570dc 1917}