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);
32 struct flist_head list;
33 struct flist_head hash_list;
34 struct flist_head arg_list;
36 struct sockaddr_in addr;
37 struct sockaddr_in6 addr6;
38 struct sockaddr_un addr_un;
56 struct flist_head eta_list;
57 struct client_eta *eta_in_flight;
59 struct flist_head cmd_list;
65 static void fio_client_text_op(struct fio_client *client,
66 FILE *f, __u16 pdu_len, const char *buf)
71 name = client->name ? client->name : client->hostname;
73 if (!client->skip_newline)
74 fprintf(f, "<%s> ", name);
75 ret = fwrite(buf, pdu_len, 1, f);
77 client->skip_newline = strchr(buf, '\n') == NULL;
80 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
81 static void handle_ts(struct fio_net_cmd *cmd);
82 static void handle_gs(struct fio_net_cmd *cmd);
83 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd);
84 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
86 struct client_ops fio_client_ops = {
93 NULL, /* status display, if NULL, printf is used */
96 static struct timeval eta_tv;
100 Client_connected = 1,
107 static FLIST_HEAD(client_list);
108 static FLIST_HEAD(eta_list);
110 static FLIST_HEAD(arg_list);
112 static struct thread_stat client_ts;
113 static struct group_run_stats client_gs;
114 static int sum_stat_clients;
115 static int sum_stat_nr;
117 #define FIO_CLIENT_HASH_BITS 7
118 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
119 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
120 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
122 static int handle_client(struct fio_client *client, struct client_ops *ops);
123 static void dec_jobs_eta(struct client_eta *eta);
125 static void fio_client_add_hash(struct fio_client *client)
127 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
129 bucket &= FIO_CLIENT_HASH_MASK;
130 flist_add(&client->hash_list, &client_hash[bucket]);
133 static void fio_client_remove_hash(struct fio_client *client)
135 if (!flist_empty(&client->hash_list))
136 flist_del_init(&client->hash_list);
139 static void fio_init fio_client_hash_init(void)
143 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
144 INIT_FLIST_HEAD(&client_hash[i]);
147 static struct fio_client *find_client_by_fd(int fd)
149 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
150 struct fio_client *client;
151 struct flist_head *entry;
153 flist_for_each(entry, &client_hash[bucket]) {
154 client = flist_entry(entry, struct fio_client, hash_list);
156 if (client->fd == fd)
163 static void remove_client(struct fio_client *client)
165 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
166 flist_del(&client->list);
168 fio_client_remove_hash(client);
170 if (!flist_empty(&client->eta_list)) {
171 flist_del_init(&client->eta_list);
172 dec_jobs_eta(client->eta_in_flight);
175 free(client->hostname);
186 static void __fio_client_add_cmd_option(struct fio_client *client,
191 index = client->argc++;
192 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
193 client->argv[index] = strdup(opt);
194 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
197 void fio_client_add_cmd_option(void *cookie, const char *opt)
199 struct fio_client *client = cookie;
200 struct flist_head *entry;
205 __fio_client_add_cmd_option(client, opt);
208 * Duplicate arguments to shared client group
210 flist_for_each(entry, &arg_list) {
211 client = flist_entry(entry, struct fio_client, arg_list);
213 __fio_client_add_cmd_option(client, opt);
217 int fio_client_add(const char *hostname, void **cookie)
219 struct fio_client *existing = *cookie;
220 struct fio_client *client;
224 * We always add our "exec" name as the option, hence 1
227 if (existing->argc == 1)
228 flist_add_tail(&existing->arg_list, &arg_list);
230 while (!flist_empty(&arg_list))
231 flist_del_init(arg_list.next);
235 client = malloc(sizeof(*client));
236 memset(client, 0, sizeof(*client));
238 INIT_FLIST_HEAD(&client->list);
239 INIT_FLIST_HEAD(&client->hash_list);
240 INIT_FLIST_HEAD(&client->arg_list);
241 INIT_FLIST_HEAD(&client->eta_list);
242 INIT_FLIST_HEAD(&client->cmd_list);
244 if (fio_server_parse_string(hostname, &client->hostname,
245 &client->is_sock, &client->port,
246 &client->addr.sin_addr,
247 &client->addr6.sin6_addr,
253 __fio_client_add_cmd_option(client, "fio");
255 flist_add(&client->list, &client_list);
257 dprint(FD_NET, "client: added <%s>\n", client->hostname);
262 static int fio_client_connect_ip(struct fio_client *client)
264 struct sockaddr *addr;
265 fio_socklen_t socklen;
269 client->addr6.sin6_family = AF_INET6;
270 client->addr6.sin6_port = htons(client->port);
272 addr = (struct sockaddr *) &client->addr6;
273 socklen = sizeof(client->addr6);
275 client->addr.sin_family = AF_INET;
276 client->addr.sin_port = htons(client->port);
278 addr = (struct sockaddr *) &client->addr;
279 socklen = sizeof(client->addr);
282 fd = socket(domain, SOCK_STREAM, 0);
284 log_err("fio: socket: %s\n", strerror(errno));
288 if (connect(fd, addr, socklen) < 0) {
289 log_err("fio: connect: %s\n", strerror(errno));
290 log_err("fio: failed to connect to %s:%u\n", client->hostname,
299 static int fio_client_connect_sock(struct fio_client *client)
301 struct sockaddr_un *addr = &client->addr_un;
305 memset(addr, 0, sizeof(*addr));
306 addr->sun_family = AF_UNIX;
307 strcpy(addr->sun_path, client->hostname);
309 fd = socket(AF_UNIX, SOCK_STREAM, 0);
311 log_err("fio: socket: %s\n", strerror(errno));
315 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
316 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
317 log_err("fio: connect; %s\n", strerror(errno));
325 static int fio_client_connect(struct fio_client *client)
329 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
332 fd = fio_client_connect_sock(client);
334 fd = fio_client_connect_ip(client);
336 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
342 fio_client_add_hash(client);
343 client->state = Client_connected;
347 void fio_clients_terminate(void)
349 struct flist_head *entry;
350 struct fio_client *client;
352 dprint(FD_NET, "client: terminate clients\n");
354 flist_for_each(entry, &client_list) {
355 client = flist_entry(entry, struct fio_client, list);
357 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
361 static void sig_int(int sig)
363 dprint(FD_NET, "client: got signal %d\n", sig);
364 fio_clients_terminate();
367 static void client_signal_handler(void)
369 struct sigaction act;
371 memset(&act, 0, sizeof(act));
372 act.sa_handler = sig_int;
373 act.sa_flags = SA_RESTART;
374 sigaction(SIGINT, &act, NULL);
376 memset(&act, 0, sizeof(act));
377 act.sa_handler = sig_int;
378 act.sa_flags = SA_RESTART;
379 sigaction(SIGTERM, &act, NULL);
382 static void probe_client(struct fio_client *client)
384 dprint(FD_NET, "client: send probe\n");
386 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
389 static int send_client_cmd_line(struct fio_client *client)
391 struct cmd_single_line_pdu *cslp;
392 struct cmd_line_pdu *clp;
393 unsigned long offset;
399 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
401 lens = malloc(client->argc * sizeof(unsigned int));
404 * Find out how much mem we need
406 for (i = 0, mem = 0; i < client->argc; i++) {
407 lens[i] = strlen(client->argv[i]) + 1;
412 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
414 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
418 offset = sizeof(*clp);
420 for (i = 0; i < client->argc; i++) {
421 uint16_t arg_len = lens[i];
424 strcpy((char *) cslp->text, client->argv[i]);
425 cslp->len = cpu_to_le16(arg_len);
426 offset += sizeof(*cslp) + arg_len;
430 clp->lines = cpu_to_le16(client->argc);
431 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
436 int fio_clients_connect(void)
438 struct fio_client *client;
439 struct flist_head *entry, *tmp;
444 WSAStartup(MAKEWORD(2,2), &wsd);
447 dprint(FD_NET, "client: connect all\n");
449 client_signal_handler();
451 flist_for_each_safe(entry, tmp, &client_list) {
452 client = flist_entry(entry, struct fio_client, list);
454 ret = fio_client_connect(client);
456 remove_client(client);
460 probe_client(client);
462 if (client->argc > 1)
463 send_client_cmd_line(client);
470 * Send file contents to server backend. We could use sendfile(), but to remain
471 * more portable lets just read/write the darn thing.
473 static int fio_client_send_ini(struct fio_client *client, const char *filename)
480 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
482 fd = open(filename, O_RDONLY);
484 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
488 if (fstat(fd, &sb) < 0) {
489 log_err("fio: job file stat: %s\n", strerror(errno));
494 buf = malloc(sb.st_size);
499 ret = read(fd, p, len);
508 else if (errno == EAGAIN || errno == EINTR)
513 log_err("fio: failed reading job file %s\n", filename);
519 client->sent_job = 1;
520 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
526 int fio_clients_send_ini(const char *filename)
528 struct fio_client *client;
529 struct flist_head *entry, *tmp;
531 flist_for_each_safe(entry, tmp, &client_list) {
532 client = flist_entry(entry, struct fio_client, list);
534 if (fio_client_send_ini(client, filename))
535 remove_client(client);
537 client->sent_job = 1;
543 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
545 dst->max_val = le64_to_cpu(src->max_val);
546 dst->min_val = le64_to_cpu(src->min_val);
547 dst->samples = le64_to_cpu(src->samples);
550 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
552 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
553 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
556 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
560 dst->error = le32_to_cpu(src->error);
561 dst->groupid = le32_to_cpu(src->groupid);
562 dst->pid = le32_to_cpu(src->pid);
563 dst->members = le32_to_cpu(src->members);
565 for (i = 0; i < 2; i++) {
566 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
567 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
568 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
569 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
572 dst->usr_time = le64_to_cpu(src->usr_time);
573 dst->sys_time = le64_to_cpu(src->sys_time);
574 dst->ctx = le64_to_cpu(src->ctx);
575 dst->minf = le64_to_cpu(src->minf);
576 dst->majf = le64_to_cpu(src->majf);
577 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
579 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
580 fio_fp64_t *fps = &src->percentile_list[i];
581 fio_fp64_t *fpd = &dst->percentile_list[i];
583 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
586 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
587 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
588 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
589 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
592 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
593 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
594 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
597 for (i = 0; i < 2; i++)
598 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
599 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
601 for (i = 0; i < 3; i++) {
602 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
603 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
606 dst->total_submit = le64_to_cpu(src->total_submit);
607 dst->total_complete = le64_to_cpu(src->total_complete);
609 for (i = 0; i < 2; i++) {
610 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
611 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
614 dst->total_run_time = le64_to_cpu(src->total_run_time);
615 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
616 dst->total_err_count = le64_to_cpu(src->total_err_count);
617 dst->first_error = le32_to_cpu(src->first_error);
618 dst->kb_base = le32_to_cpu(src->kb_base);
621 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
625 for (i = 0; i < 2; i++) {
626 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
627 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
628 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
629 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
630 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
631 dst->agg[i] = le64_to_cpu(src->agg[i]);
634 dst->kb_base = le32_to_cpu(src->kb_base);
635 dst->groupid = le32_to_cpu(src->groupid);
638 static void handle_ts(struct fio_net_cmd *cmd)
640 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
642 convert_ts(&p->ts, &p->ts);
643 convert_gs(&p->rs, &p->rs);
645 show_thread_status(&p->ts, &p->rs);
647 if (sum_stat_clients == 1)
650 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
651 sum_group_stats(&client_gs, &p->rs);
654 client_ts.groupid = p->ts.groupid;
656 if (++sum_stat_nr == sum_stat_clients) {
657 strcpy(client_ts.name, "All clients");
658 show_thread_status(&client_ts, &client_gs);
662 static void handle_gs(struct fio_net_cmd *cmd)
664 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
667 show_group_stats(gs);
670 static void convert_agg(struct disk_util_agg *agg)
674 for (i = 0; i < 2; i++) {
675 agg->ios[i] = le32_to_cpu(agg->ios[i]);
676 agg->merges[i] = le32_to_cpu(agg->merges[i]);
677 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
678 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
681 agg->io_ticks = le32_to_cpu(agg->io_ticks);
682 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
683 agg->slavecount = le32_to_cpu(agg->slavecount);
684 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
687 static void convert_dus(struct disk_util_stat *dus)
691 for (i = 0; i < 2; i++) {
692 dus->ios[i] = le32_to_cpu(dus->ios[i]);
693 dus->merges[i] = le32_to_cpu(dus->merges[i]);
694 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
695 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
698 dus->io_ticks = le32_to_cpu(dus->io_ticks);
699 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
700 dus->msec = le64_to_cpu(dus->msec);
703 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
705 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
707 convert_dus(&du->dus);
708 convert_agg(&du->agg);
710 if (!client->disk_stats_shown) {
711 client->disk_stats_shown = 1;
712 log_info("\nDisk stats (read/write):\n");
715 print_disk_util(&du->dus, &du->agg, terse_output);
718 static void convert_jobs_eta(struct jobs_eta *je)
722 je->nr_running = le32_to_cpu(je->nr_running);
723 je->nr_ramp = le32_to_cpu(je->nr_ramp);
724 je->nr_pending = le32_to_cpu(je->nr_pending);
725 je->files_open = le32_to_cpu(je->files_open);
726 je->m_rate = le32_to_cpu(je->m_rate);
727 je->t_rate = le32_to_cpu(je->t_rate);
728 je->m_iops = le32_to_cpu(je->m_iops);
729 je->t_iops = le32_to_cpu(je->t_iops);
731 for (i = 0; i < 2; i++) {
732 je->rate[i] = le32_to_cpu(je->rate[i]);
733 je->iops[i] = le32_to_cpu(je->iops[i]);
736 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
737 je->eta_sec = le64_to_cpu(je->eta_sec);
740 static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
744 dst->nr_running += je->nr_running;
745 dst->nr_ramp += je->nr_ramp;
746 dst->nr_pending += je->nr_pending;
747 dst->files_open += je->files_open;
748 dst->m_rate += je->m_rate;
749 dst->t_rate += je->t_rate;
750 dst->m_iops += je->m_iops;
751 dst->t_iops += je->t_iops;
753 for (i = 0; i < 2; i++) {
754 dst->rate[i] += je->rate[i];
755 dst->iops[i] += je->iops[i];
758 dst->elapsed_sec += je->elapsed_sec;
760 if (je->eta_sec > dst->eta_sec)
761 dst->eta_sec = je->eta_sec;
764 static void dec_jobs_eta(struct client_eta *eta)
766 if (!--eta->pending) {
767 display_thread_status(&eta->eta);
772 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
774 struct fio_net_int_cmd *icmd = NULL;
775 struct flist_head *entry;
777 flist_for_each(entry, &client->cmd_list) {
778 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
780 if (cmd->tag == (uintptr_t) icmd)
787 log_err("fio: client: unable to find matching tag\n");
791 flist_del(&icmd->list);
792 cmd->tag = icmd->saved_tag;
796 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
798 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
799 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
801 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
803 assert(client->eta_in_flight == eta);
805 client->eta_in_flight = NULL;
806 flist_del_init(&client->eta_list);
808 convert_jobs_eta(je);
809 sum_jobs_eta(&eta->eta, je);
813 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
815 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
816 const char *os, *arch;
819 os = fio_get_os_string(probe->os);
823 arch = fio_get_arch_string(probe->arch);
827 sprintf(bit, "%d-bit", probe->bpp * 8);
829 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
830 probe->hostname, probe->bigendian, bit, os, arch,
831 probe->fio_major, probe->fio_minor, probe->fio_patch);
834 client->name = strdup((char *) probe->hostname);
837 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
839 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
841 client->state = Client_started;
842 client->jobs = le32_to_cpu(pdu->jobs);
845 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
847 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
849 client->state = Client_stopped;
850 client->error = le32_to_cpu(pdu->error);
853 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
856 static int handle_client(struct fio_client *client, struct client_ops *ops)
858 struct fio_net_cmd *cmd;
860 dprint(FD_NET, "client: handle %s\n", client->hostname);
862 cmd = fio_net_recv_cmd(client->fd);
866 dprint(FD_NET, "client: got cmd op %s from %s\n",
867 fio_server_op(cmd->opcode), client->hostname);
869 switch (cmd->opcode) {
870 case FIO_NET_CMD_QUIT:
871 remove_client(client);
874 case FIO_NET_CMD_TEXT: {
875 const char *buf = (const char *) cmd->payload;
876 ops->text_op(client, f_out, cmd->pdu_len, buf);
881 ops->disk_util(client, cmd);
885 ops->thread_status(cmd);
889 ops->group_stats(cmd);
892 case FIO_NET_CMD_ETA:
893 remove_reply_cmd(client, cmd);
894 ops->eta(client, cmd);
897 case FIO_NET_CMD_PROBE:
898 remove_reply_cmd(client, cmd);
899 ops->probe(client, cmd);
902 case FIO_NET_CMD_RUN:
903 client->state = Client_running;
906 case FIO_NET_CMD_START:
907 handle_start(client, cmd);
910 case FIO_NET_CMD_STOP:
911 handle_stop(client, cmd);
915 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
923 static void request_client_etas(void)
925 struct fio_client *client;
926 struct flist_head *entry;
927 struct client_eta *eta;
930 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
932 eta = malloc(sizeof(*eta));
933 memset(&eta->eta, 0, sizeof(eta->eta));
934 eta->pending = nr_clients;
936 flist_for_each(entry, &client_list) {
937 client = flist_entry(entry, struct fio_client, list);
939 if (!flist_empty(&client->eta_list)) {
943 if (client->state != Client_running)
946 assert(!client->eta_in_flight);
947 flist_add_tail(&client->eta_list, &eta_list);
948 client->eta_in_flight = eta;
949 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
950 (uintptr_t) eta, &client->cmd_list);
956 dprint(FD_NET, "client: requested eta tag %p\n", eta);
959 static int client_check_cmd_timeout(struct fio_client *client,
962 struct fio_net_int_cmd *cmd;
963 struct flist_head *entry, *tmp;
966 flist_for_each_safe(entry, tmp, &client->cmd_list) {
967 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
969 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
972 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
973 fio_server_op(cmd->cmd.opcode));
974 flist_del(&cmd->list);
979 return flist_empty(&client->cmd_list) && ret;
982 static int fio_client_timed_out(void)
984 struct fio_client *client;
985 struct flist_head *entry, *tmp;
989 gettimeofday(&tv, NULL);
991 flist_for_each_safe(entry, tmp, &client_list) {
992 client = flist_entry(entry, struct fio_client, list);
994 if (flist_empty(&client->cmd_list))
997 if (!client_check_cmd_timeout(client, &tv))
1000 log_err("fio: client %s timed out\n", client->hostname);
1001 remove_client(client);
1008 int fio_handle_clients(struct client_ops *ops)
1010 struct pollfd *pfds;
1011 int i, ret = 0, retval = 0;
1013 gettimeofday(&eta_tv, NULL);
1015 pfds = malloc(nr_clients * sizeof(struct pollfd));
1017 sum_stat_clients = nr_clients;
1018 init_thread_stat(&client_ts);
1019 init_group_run_stat(&client_gs);
1021 /* Used by eta.c:display_thread_status() */
1022 update_thread_status = ops->thread_status_display;
1024 while (!exit_backend && nr_clients) {
1025 struct flist_head *entry, *tmp;
1026 struct fio_client *client;
1029 flist_for_each_safe(entry, tmp, &client_list) {
1030 client = flist_entry(entry, struct fio_client, list);
1032 if (!client->sent_job &&
1033 flist_empty(&client->cmd_list)) {
1034 remove_client(client);
1038 pfds[i].fd = client->fd;
1039 pfds[i].events = POLLIN;
1046 assert(i == nr_clients);
1051 gettimeofday(&tv, NULL);
1052 if (mtime_since(&eta_tv, &tv) >= 900) {
1053 request_client_etas();
1054 memcpy(&eta_tv, &tv, sizeof(tv));
1056 if (fio_client_timed_out())
1060 ret = poll(pfds, nr_clients, 100);
1064 log_err("fio: poll clients: %s\n", strerror(errno));
1070 for (i = 0; i < nr_clients; i++) {
1071 if (!(pfds[i].revents & POLLIN))
1074 client = find_client_by_fd(pfds[i].fd);
1076 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1079 if (!handle_client(client, ops)) {
1080 log_info("client: host=%s disconnected\n",
1082 remove_client(client);
1084 } else if (client->error)