11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
24 extern void (*update_thread_status)(char *status_message, double perc);
31 static void fio_client_text_op(struct fio_client *client,
32 FILE *f, __u16 pdu_len, const char *buf)
37 name = client->name ? client->name : client->hostname;
39 if (!client->skip_newline)
40 fprintf(f, "<%s> ", name);
41 ret = fwrite(buf, pdu_len, 1, f);
43 client->skip_newline = strchr(buf, '\n') == NULL;
46 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
47 static void handle_ts(struct fio_net_cmd *cmd);
48 static void handle_gs(struct fio_net_cmd *cmd);
49 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd);
50 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
52 struct client_ops fio_client_ops = {
53 .text_op = fio_client_text_op,
54 .disk_util = handle_du,
55 .thread_status = handle_ts,
56 .group_stats = handle_gs,
58 .probe = handle_probe,
59 /* status display, if NULL, printf is used */
62 static struct timeval eta_tv;
73 static FLIST_HEAD(client_list);
74 static FLIST_HEAD(eta_list);
76 static FLIST_HEAD(arg_list);
78 static struct thread_stat client_ts;
79 static struct group_run_stats client_gs;
80 static int sum_stat_clients;
81 static int sum_stat_nr;
83 #define FIO_CLIENT_HASH_BITS 7
84 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
85 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
86 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
88 static int handle_client(struct fio_client *client, struct client_ops *ops);
89 static void dec_jobs_eta(struct client_eta *eta);
91 static void fio_client_add_hash(struct fio_client *client)
93 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
95 bucket &= FIO_CLIENT_HASH_MASK;
96 flist_add(&client->hash_list, &client_hash[bucket]);
99 static void fio_client_remove_hash(struct fio_client *client)
101 if (!flist_empty(&client->hash_list))
102 flist_del_init(&client->hash_list);
105 static void fio_init fio_client_hash_init(void)
109 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
110 INIT_FLIST_HEAD(&client_hash[i]);
113 static struct fio_client *find_client_by_fd(int fd)
115 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
116 struct fio_client *client;
117 struct flist_head *entry;
119 flist_for_each(entry, &client_hash[bucket]) {
120 client = flist_entry(entry, struct fio_client, hash_list);
122 if (client->fd == fd)
129 static void remove_client(struct fio_client *client)
131 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
132 flist_del(&client->list);
134 fio_client_remove_hash(client);
136 if (!flist_empty(&client->eta_list)) {
137 flist_del_init(&client->eta_list);
138 dec_jobs_eta(client->eta_in_flight);
141 free(client->hostname);
152 static void __fio_client_add_cmd_option(struct fio_client *client,
157 index = client->argc++;
158 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
159 client->argv[index] = strdup(opt);
160 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
163 void fio_client_add_cmd_option(void *cookie, const char *opt)
165 struct fio_client *client = cookie;
166 struct flist_head *entry;
171 __fio_client_add_cmd_option(client, opt);
174 * Duplicate arguments to shared client group
176 flist_for_each(entry, &arg_list) {
177 client = flist_entry(entry, struct fio_client, arg_list);
179 __fio_client_add_cmd_option(client, opt);
183 int fio_client_add(const char *hostname, void **cookie)
185 struct fio_client *existing = *cookie;
186 struct fio_client *client;
190 * We always add our "exec" name as the option, hence 1
193 if (existing->argc == 1)
194 flist_add_tail(&existing->arg_list, &arg_list);
196 while (!flist_empty(&arg_list))
197 flist_del_init(arg_list.next);
201 client = malloc(sizeof(*client));
202 memset(client, 0, sizeof(*client));
204 INIT_FLIST_HEAD(&client->list);
205 INIT_FLIST_HEAD(&client->hash_list);
206 INIT_FLIST_HEAD(&client->arg_list);
207 INIT_FLIST_HEAD(&client->eta_list);
208 INIT_FLIST_HEAD(&client->cmd_list);
210 if (fio_server_parse_string(hostname, &client->hostname,
211 &client->is_sock, &client->port,
212 &client->addr.sin_addr,
213 &client->addr6.sin6_addr,
219 __fio_client_add_cmd_option(client, "fio");
221 flist_add(&client->list, &client_list);
223 dprint(FD_NET, "client: added <%s>\n", client->hostname);
228 static int fio_client_connect_ip(struct fio_client *client)
230 struct sockaddr *addr;
231 fio_socklen_t socklen;
235 client->addr6.sin6_family = AF_INET6;
236 client->addr6.sin6_port = htons(client->port);
238 addr = (struct sockaddr *) &client->addr6;
239 socklen = sizeof(client->addr6);
241 client->addr.sin_family = AF_INET;
242 client->addr.sin_port = htons(client->port);
244 addr = (struct sockaddr *) &client->addr;
245 socklen = sizeof(client->addr);
248 fd = socket(domain, SOCK_STREAM, 0);
250 log_err("fio: socket: %s\n", strerror(errno));
254 if (connect(fd, addr, socklen) < 0) {
255 log_err("fio: connect: %s\n", strerror(errno));
256 log_err("fio: failed to connect to %s:%u\n", client->hostname,
265 static int fio_client_connect_sock(struct fio_client *client)
267 struct sockaddr_un *addr = &client->addr_un;
271 memset(addr, 0, sizeof(*addr));
272 addr->sun_family = AF_UNIX;
273 strcpy(addr->sun_path, client->hostname);
275 fd = socket(AF_UNIX, SOCK_STREAM, 0);
277 log_err("fio: socket: %s\n", strerror(errno));
281 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
282 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
283 log_err("fio: connect; %s\n", strerror(errno));
291 static int fio_client_connect(struct fio_client *client)
295 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
298 fd = fio_client_connect_sock(client);
300 fd = fio_client_connect_ip(client);
302 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
308 fio_client_add_hash(client);
309 client->state = Client_connected;
313 void fio_clients_terminate(void)
315 struct flist_head *entry;
316 struct fio_client *client;
318 dprint(FD_NET, "client: terminate clients\n");
320 flist_for_each(entry, &client_list) {
321 client = flist_entry(entry, struct fio_client, list);
323 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
327 static void sig_int(int sig)
329 dprint(FD_NET, "client: got signal %d\n", sig);
330 fio_clients_terminate();
333 static void client_signal_handler(void)
335 struct sigaction act;
337 memset(&act, 0, sizeof(act));
338 act.sa_handler = sig_int;
339 act.sa_flags = SA_RESTART;
340 sigaction(SIGINT, &act, NULL);
342 memset(&act, 0, sizeof(act));
343 act.sa_handler = sig_int;
344 act.sa_flags = SA_RESTART;
345 sigaction(SIGTERM, &act, NULL);
348 static void probe_client(struct fio_client *client)
350 dprint(FD_NET, "client: send probe\n");
352 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
355 static int send_client_cmd_line(struct fio_client *client)
357 struct cmd_single_line_pdu *cslp;
358 struct cmd_line_pdu *clp;
359 unsigned long offset;
365 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
367 lens = malloc(client->argc * sizeof(unsigned int));
370 * Find out how much mem we need
372 for (i = 0, mem = 0; i < client->argc; i++) {
373 lens[i] = strlen(client->argv[i]) + 1;
378 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
380 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
384 offset = sizeof(*clp);
386 for (i = 0; i < client->argc; i++) {
387 uint16_t arg_len = lens[i];
390 strcpy((char *) cslp->text, client->argv[i]);
391 cslp->len = cpu_to_le16(arg_len);
392 offset += sizeof(*cslp) + arg_len;
396 clp->lines = cpu_to_le16(client->argc);
397 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
402 int fio_clients_connect(void)
404 struct fio_client *client;
405 struct flist_head *entry, *tmp;
410 WSAStartup(MAKEWORD(2,2), &wsd);
413 dprint(FD_NET, "client: connect all\n");
415 client_signal_handler();
417 flist_for_each_safe(entry, tmp, &client_list) {
418 client = flist_entry(entry, struct fio_client, list);
420 ret = fio_client_connect(client);
422 remove_client(client);
426 probe_client(client);
428 if (client->argc > 1)
429 send_client_cmd_line(client);
436 * Send file contents to server backend. We could use sendfile(), but to remain
437 * more portable lets just read/write the darn thing.
439 static int fio_client_send_ini(struct fio_client *client, const char *filename)
446 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
448 fd = open(filename, O_RDONLY);
450 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
454 if (fstat(fd, &sb) < 0) {
455 log_err("fio: job file stat: %s\n", strerror(errno));
460 buf = malloc(sb.st_size);
465 ret = read(fd, p, len);
474 else if (errno == EAGAIN || errno == EINTR)
479 log_err("fio: failed reading job file %s\n", filename);
485 client->sent_job = 1;
486 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
492 int fio_clients_send_ini(const char *filename)
494 struct fio_client *client;
495 struct flist_head *entry, *tmp;
497 flist_for_each_safe(entry, tmp, &client_list) {
498 client = flist_entry(entry, struct fio_client, list);
500 if (fio_client_send_ini(client, filename))
501 remove_client(client);
503 client->sent_job = 1;
509 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
511 dst->max_val = le64_to_cpu(src->max_val);
512 dst->min_val = le64_to_cpu(src->min_val);
513 dst->samples = le64_to_cpu(src->samples);
516 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
518 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
519 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
522 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
526 dst->error = le32_to_cpu(src->error);
527 dst->groupid = le32_to_cpu(src->groupid);
528 dst->pid = le32_to_cpu(src->pid);
529 dst->members = le32_to_cpu(src->members);
531 for (i = 0; i < 2; i++) {
532 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
533 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
534 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
535 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
538 dst->usr_time = le64_to_cpu(src->usr_time);
539 dst->sys_time = le64_to_cpu(src->sys_time);
540 dst->ctx = le64_to_cpu(src->ctx);
541 dst->minf = le64_to_cpu(src->minf);
542 dst->majf = le64_to_cpu(src->majf);
543 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
545 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
546 fio_fp64_t *fps = &src->percentile_list[i];
547 fio_fp64_t *fpd = &dst->percentile_list[i];
549 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
552 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
553 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
554 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
555 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
558 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
559 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
560 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
563 for (i = 0; i < 2; i++)
564 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
565 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
567 for (i = 0; i < 3; i++) {
568 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
569 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
572 dst->total_submit = le64_to_cpu(src->total_submit);
573 dst->total_complete = le64_to_cpu(src->total_complete);
575 for (i = 0; i < 2; i++) {
576 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
577 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
580 dst->total_run_time = le64_to_cpu(src->total_run_time);
581 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
582 dst->total_err_count = le64_to_cpu(src->total_err_count);
583 dst->first_error = le32_to_cpu(src->first_error);
584 dst->kb_base = le32_to_cpu(src->kb_base);
587 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
591 for (i = 0; i < 2; i++) {
592 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
593 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
594 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
595 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
596 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
597 dst->agg[i] = le64_to_cpu(src->agg[i]);
600 dst->kb_base = le32_to_cpu(src->kb_base);
601 dst->groupid = le32_to_cpu(src->groupid);
604 static void handle_ts(struct fio_net_cmd *cmd)
606 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
608 convert_ts(&p->ts, &p->ts);
609 convert_gs(&p->rs, &p->rs);
611 show_thread_status(&p->ts, &p->rs);
613 if (sum_stat_clients == 1)
616 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
617 sum_group_stats(&client_gs, &p->rs);
620 client_ts.groupid = p->ts.groupid;
622 if (++sum_stat_nr == sum_stat_clients) {
623 strcpy(client_ts.name, "All clients");
624 show_thread_status(&client_ts, &client_gs);
628 static void handle_gs(struct fio_net_cmd *cmd)
630 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
633 show_group_stats(gs);
636 static void convert_agg(struct disk_util_agg *agg)
640 for (i = 0; i < 2; i++) {
641 agg->ios[i] = le32_to_cpu(agg->ios[i]);
642 agg->merges[i] = le32_to_cpu(agg->merges[i]);
643 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
644 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
647 agg->io_ticks = le32_to_cpu(agg->io_ticks);
648 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
649 agg->slavecount = le32_to_cpu(agg->slavecount);
650 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
653 static void convert_dus(struct disk_util_stat *dus)
657 for (i = 0; i < 2; i++) {
658 dus->ios[i] = le32_to_cpu(dus->ios[i]);
659 dus->merges[i] = le32_to_cpu(dus->merges[i]);
660 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
661 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
664 dus->io_ticks = le32_to_cpu(dus->io_ticks);
665 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
666 dus->msec = le64_to_cpu(dus->msec);
669 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
671 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
673 convert_dus(&du->dus);
674 convert_agg(&du->agg);
676 if (!client->disk_stats_shown) {
677 client->disk_stats_shown = 1;
678 log_info("\nDisk stats (read/write):\n");
681 print_disk_util(&du->dus, &du->agg, terse_output);
684 static void convert_jobs_eta(struct jobs_eta *je)
688 je->nr_running = le32_to_cpu(je->nr_running);
689 je->nr_ramp = le32_to_cpu(je->nr_ramp);
690 je->nr_pending = le32_to_cpu(je->nr_pending);
691 je->files_open = le32_to_cpu(je->files_open);
692 je->m_rate = le32_to_cpu(je->m_rate);
693 je->t_rate = le32_to_cpu(je->t_rate);
694 je->m_iops = le32_to_cpu(je->m_iops);
695 je->t_iops = le32_to_cpu(je->t_iops);
697 for (i = 0; i < 2; i++) {
698 je->rate[i] = le32_to_cpu(je->rate[i]);
699 je->iops[i] = le32_to_cpu(je->iops[i]);
702 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
703 je->eta_sec = le64_to_cpu(je->eta_sec);
706 static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
710 dst->nr_running += je->nr_running;
711 dst->nr_ramp += je->nr_ramp;
712 dst->nr_pending += je->nr_pending;
713 dst->files_open += je->files_open;
714 dst->m_rate += je->m_rate;
715 dst->t_rate += je->t_rate;
716 dst->m_iops += je->m_iops;
717 dst->t_iops += je->t_iops;
719 for (i = 0; i < 2; i++) {
720 dst->rate[i] += je->rate[i];
721 dst->iops[i] += je->iops[i];
724 dst->elapsed_sec += je->elapsed_sec;
726 if (je->eta_sec > dst->eta_sec)
727 dst->eta_sec = je->eta_sec;
730 static void dec_jobs_eta(struct client_eta *eta)
732 if (!--eta->pending) {
733 display_thread_status(&eta->eta);
738 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
740 struct fio_net_int_cmd *icmd = NULL;
741 struct flist_head *entry;
743 flist_for_each(entry, &client->cmd_list) {
744 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
746 if (cmd->tag == (uintptr_t) icmd)
753 log_err("fio: client: unable to find matching tag\n");
757 flist_del(&icmd->list);
758 cmd->tag = icmd->saved_tag;
762 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
764 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
765 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
767 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
769 assert(client->eta_in_flight == eta);
771 client->eta_in_flight = NULL;
772 flist_del_init(&client->eta_list);
774 convert_jobs_eta(je);
775 sum_jobs_eta(&eta->eta, je);
779 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
781 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
782 const char *os, *arch;
785 os = fio_get_os_string(probe->os);
789 arch = fio_get_arch_string(probe->arch);
793 sprintf(bit, "%d-bit", probe->bpp * 8);
795 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
796 probe->hostname, probe->bigendian, bit, os, arch,
797 probe->fio_major, probe->fio_minor, probe->fio_patch);
800 client->name = strdup((char *) probe->hostname);
803 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
805 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
807 client->state = Client_started;
808 client->jobs = le32_to_cpu(pdu->jobs);
811 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
813 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
815 client->state = Client_stopped;
816 client->error = le32_to_cpu(pdu->error);
819 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
822 static int handle_client(struct fio_client *client, struct client_ops *ops)
824 struct fio_net_cmd *cmd;
826 dprint(FD_NET, "client: handle %s\n", client->hostname);
828 cmd = fio_net_recv_cmd(client->fd);
832 dprint(FD_NET, "client: got cmd op %s from %s\n",
833 fio_server_op(cmd->opcode), client->hostname);
835 switch (cmd->opcode) {
836 case FIO_NET_CMD_QUIT:
837 remove_client(client);
840 case FIO_NET_CMD_TEXT: {
841 const char *buf = (const char *) cmd->payload;
842 ops->text_op(client, f_out, cmd->pdu_len, buf);
847 ops->disk_util(client, cmd);
851 ops->thread_status(cmd);
855 ops->group_stats(cmd);
858 case FIO_NET_CMD_ETA:
859 remove_reply_cmd(client, cmd);
860 ops->eta(client, cmd);
863 case FIO_NET_CMD_PROBE:
864 remove_reply_cmd(client, cmd);
865 ops->probe(client, cmd);
868 case FIO_NET_CMD_RUN:
869 client->state = Client_running;
872 case FIO_NET_CMD_START:
873 handle_start(client, cmd);
876 case FIO_NET_CMD_STOP:
877 handle_stop(client, cmd);
881 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
889 static void request_client_etas(void)
891 struct fio_client *client;
892 struct flist_head *entry;
893 struct client_eta *eta;
896 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
898 eta = malloc(sizeof(*eta));
899 memset(&eta->eta, 0, sizeof(eta->eta));
900 eta->pending = nr_clients;
902 flist_for_each(entry, &client_list) {
903 client = flist_entry(entry, struct fio_client, list);
905 if (!flist_empty(&client->eta_list)) {
909 if (client->state != Client_running)
912 assert(!client->eta_in_flight);
913 flist_add_tail(&client->eta_list, &eta_list);
914 client->eta_in_flight = eta;
915 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
916 (uintptr_t) eta, &client->cmd_list);
922 dprint(FD_NET, "client: requested eta tag %p\n", eta);
925 static int client_check_cmd_timeout(struct fio_client *client,
928 struct fio_net_int_cmd *cmd;
929 struct flist_head *entry, *tmp;
932 flist_for_each_safe(entry, tmp, &client->cmd_list) {
933 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
935 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
938 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
939 fio_server_op(cmd->cmd.opcode));
940 flist_del(&cmd->list);
945 return flist_empty(&client->cmd_list) && ret;
948 static int fio_client_timed_out(void)
950 struct fio_client *client;
951 struct flist_head *entry, *tmp;
955 gettimeofday(&tv, NULL);
957 flist_for_each_safe(entry, tmp, &client_list) {
958 client = flist_entry(entry, struct fio_client, list);
960 if (flist_empty(&client->cmd_list))
963 if (!client_check_cmd_timeout(client, &tv))
966 log_err("fio: client %s timed out\n", client->hostname);
967 remove_client(client);
974 int fio_handle_clients(struct client_ops *ops)
977 int i, ret = 0, retval = 0;
979 gettimeofday(&eta_tv, NULL);
981 pfds = malloc(nr_clients * sizeof(struct pollfd));
983 sum_stat_clients = nr_clients;
984 init_thread_stat(&client_ts);
985 init_group_run_stat(&client_gs);
987 /* Used by eta.c:display_thread_status() */
988 update_thread_status = ops->thread_status_display;
990 while (!exit_backend && nr_clients) {
991 struct flist_head *entry, *tmp;
992 struct fio_client *client;
995 flist_for_each_safe(entry, tmp, &client_list) {
996 client = flist_entry(entry, struct fio_client, list);
998 if (!client->sent_job &&
999 flist_empty(&client->cmd_list)) {
1000 remove_client(client);
1004 pfds[i].fd = client->fd;
1005 pfds[i].events = POLLIN;
1012 assert(i == nr_clients);
1017 gettimeofday(&tv, NULL);
1018 if (mtime_since(&eta_tv, &tv) >= 900) {
1019 request_client_etas();
1020 memcpy(&eta_tv, &tv, sizeof(tv));
1022 if (fio_client_timed_out())
1026 ret = poll(pfds, nr_clients, 100);
1030 log_err("fio: poll clients: %s\n", strerror(errno));
1036 for (i = 0; i < nr_clients; i++) {
1037 if (!(pfds[i].revents & POLLIN))
1040 client = find_client_by_fd(pfds[i].fd);
1042 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1045 if (!handle_client(client, ops)) {
1046 log_info("client: host=%s disconnected\n",
1048 remove_client(client);
1050 } else if (client->error)