11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
24 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
25 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
26 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
27 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
28 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
29 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
31 struct client_ops fio_client_ops = {
32 .text_op = handle_text,
33 .disk_util = handle_du,
34 .thread_status = handle_ts,
35 .group_stats = handle_gs,
37 .eta = display_thread_status,
38 .probe = handle_probe,
41 static struct timeval eta_tv;
43 static FLIST_HEAD(client_list);
44 static FLIST_HEAD(eta_list);
46 static FLIST_HEAD(arg_list);
48 struct thread_stat client_ts;
49 struct group_run_stats client_gs;
52 static int sum_stat_nr;
54 #define FIO_CLIENT_HASH_BITS 7
55 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
56 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
57 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
59 static void fio_client_add_hash(struct fio_client *client)
61 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
63 bucket &= FIO_CLIENT_HASH_MASK;
64 flist_add(&client->hash_list, &client_hash[bucket]);
67 static void fio_client_remove_hash(struct fio_client *client)
69 if (!flist_empty(&client->hash_list))
70 flist_del_init(&client->hash_list);
73 static void fio_init fio_client_hash_init(void)
77 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
78 INIT_FLIST_HEAD(&client_hash[i]);
81 static struct fio_client *find_client_by_fd(int fd)
83 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
84 struct fio_client *client;
85 struct flist_head *entry;
87 flist_for_each(entry, &client_hash[bucket]) {
88 client = flist_entry(entry, struct fio_client, hash_list);
90 if (client->fd == fd) {
99 static void remove_client(struct fio_client *client)
101 assert(client->refs);
106 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
107 flist_del(&client->list);
109 fio_client_remove_hash(client);
111 if (!flist_empty(&client->eta_list)) {
112 flist_del_init(&client->eta_list);
113 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
116 free(client->hostname);
127 static void put_client(struct fio_client *client)
129 remove_client(client);
132 static void __fio_client_add_cmd_option(struct fio_client *client,
137 index = client->argc++;
138 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
139 client->argv[index] = strdup(opt);
140 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
143 void fio_client_add_cmd_option(void *cookie, const char *opt)
145 struct fio_client *client = cookie;
146 struct flist_head *entry;
151 __fio_client_add_cmd_option(client, opt);
154 * Duplicate arguments to shared client group
156 flist_for_each(entry, &arg_list) {
157 client = flist_entry(entry, struct fio_client, arg_list);
159 __fio_client_add_cmd_option(client, opt);
163 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
164 const char *hostname, int type,
167 struct fio_client *client;
169 client = malloc(sizeof(*client));
170 memset(client, 0, sizeof(*client));
172 INIT_FLIST_HEAD(&client->list);
173 INIT_FLIST_HEAD(&client->hash_list);
174 INIT_FLIST_HEAD(&client->arg_list);
175 INIT_FLIST_HEAD(&client->eta_list);
176 INIT_FLIST_HEAD(&client->cmd_list);
178 client->hostname = strdup(hostname);
180 if (type == Fio_client_socket)
185 ipv6 = type == Fio_client_ipv6;
186 if (fio_server_parse_host(hostname, &ipv6,
187 &client->addr.sin_addr,
188 &client->addr6.sin6_addr))
198 __fio_client_add_cmd_option(client, "fio");
200 flist_add(&client->list, &client_list);
202 dprint(FD_NET, "client: added <%s>\n", client->hostname);
209 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
211 struct fio_client *existing = *cookie;
212 struct fio_client *client;
216 * We always add our "exec" name as the option, hence 1
219 if (existing->argc == 1)
220 flist_add_tail(&existing->arg_list, &arg_list);
222 while (!flist_empty(&arg_list))
223 flist_del_init(arg_list.next);
227 client = malloc(sizeof(*client));
228 memset(client, 0, sizeof(*client));
230 INIT_FLIST_HEAD(&client->list);
231 INIT_FLIST_HEAD(&client->hash_list);
232 INIT_FLIST_HEAD(&client->arg_list);
233 INIT_FLIST_HEAD(&client->eta_list);
234 INIT_FLIST_HEAD(&client->cmd_list);
236 if (fio_server_parse_string(hostname, &client->hostname,
237 &client->is_sock, &client->port,
238 &client->addr.sin_addr,
239 &client->addr6.sin6_addr,
247 __fio_client_add_cmd_option(client, "fio");
249 flist_add(&client->list, &client_list);
251 dprint(FD_NET, "client: added <%s>\n", client->hostname);
256 static int fio_client_connect_ip(struct fio_client *client)
258 struct sockaddr *addr;
259 fio_socklen_t socklen;
263 client->addr6.sin6_family = AF_INET6;
264 client->addr6.sin6_port = htons(client->port);
266 addr = (struct sockaddr *) &client->addr6;
267 socklen = sizeof(client->addr6);
269 client->addr.sin_family = AF_INET;
270 client->addr.sin_port = htons(client->port);
272 addr = (struct sockaddr *) &client->addr;
273 socklen = sizeof(client->addr);
276 fd = socket(domain, SOCK_STREAM, 0);
278 log_err("fio: socket: %s\n", strerror(errno));
282 if (connect(fd, addr, socklen) < 0) {
283 log_err("fio: connect: %s\n", strerror(errno));
284 log_err("fio: failed to connect to %s:%u\n", client->hostname,
293 static int fio_client_connect_sock(struct fio_client *client)
295 struct sockaddr_un *addr = &client->addr_un;
299 memset(addr, 0, sizeof(*addr));
300 addr->sun_family = AF_UNIX;
301 strcpy(addr->sun_path, client->hostname);
303 fd = socket(AF_UNIX, SOCK_STREAM, 0);
305 log_err("fio: socket: %s\n", strerror(errno));
309 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
310 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
311 log_err("fio: connect; %s\n", strerror(errno));
319 int fio_client_connect(struct fio_client *client)
323 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
326 fd = fio_client_connect_sock(client);
328 fd = fio_client_connect_ip(client);
330 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
336 fio_client_add_hash(client);
337 client->state = Client_connected;
341 void fio_client_terminate(struct fio_client *client)
343 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
346 void fio_clients_terminate(void)
348 struct flist_head *entry;
349 struct fio_client *client;
351 dprint(FD_NET, "client: terminate clients\n");
353 flist_for_each(entry, &client_list) {
354 client = flist_entry(entry, struct fio_client, list);
355 fio_client_terminate(client);
359 static void sig_int(int sig)
361 dprint(FD_NET, "client: got signal %d\n", sig);
362 fio_clients_terminate();
365 static void client_signal_handler(void)
367 struct sigaction act;
369 memset(&act, 0, sizeof(act));
370 act.sa_handler = sig_int;
371 act.sa_flags = SA_RESTART;
372 sigaction(SIGINT, &act, NULL);
374 memset(&act, 0, sizeof(act));
375 act.sa_handler = sig_int;
376 act.sa_flags = SA_RESTART;
377 sigaction(SIGTERM, &act, NULL);
380 static void probe_client(struct fio_client *client)
382 dprint(FD_NET, "client: send probe\n");
384 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
387 static int send_client_cmd_line(struct fio_client *client)
389 struct cmd_single_line_pdu *cslp;
390 struct cmd_line_pdu *clp;
391 unsigned long offset;
397 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
399 lens = malloc(client->argc * sizeof(unsigned int));
402 * Find out how much mem we need
404 for (i = 0, mem = 0; i < client->argc; i++) {
405 lens[i] = strlen(client->argv[i]) + 1;
410 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
412 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
416 offset = sizeof(*clp);
418 for (i = 0; i < client->argc; i++) {
419 uint16_t arg_len = lens[i];
422 strcpy((char *) cslp->text, client->argv[i]);
423 cslp->len = cpu_to_le16(arg_len);
424 offset += sizeof(*cslp) + arg_len;
428 clp->lines = cpu_to_le16(client->argc);
429 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
434 int fio_clients_connect(void)
436 struct fio_client *client;
437 struct flist_head *entry, *tmp;
442 WSAStartup(MAKEWORD(2,2), &wsd);
445 dprint(FD_NET, "client: connect all\n");
447 client_signal_handler();
449 flist_for_each_safe(entry, tmp, &client_list) {
450 client = flist_entry(entry, struct fio_client, list);
452 ret = fio_client_connect(client);
454 remove_client(client);
458 probe_client(client);
460 if (client->argc > 1)
461 send_client_cmd_line(client);
467 int fio_start_client(struct fio_client *client)
469 dprint(FD_NET, "client: start %s\n", client->hostname);
470 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
473 int fio_start_all_clients(void)
475 struct fio_client *client;
476 struct flist_head *entry, *tmp;
479 dprint(FD_NET, "client: start all\n");
481 flist_for_each_safe(entry, tmp, &client_list) {
482 client = flist_entry(entry, struct fio_client, list);
484 ret = fio_start_client(client);
486 remove_client(client);
491 return flist_empty(&client_list);
495 * Send file contents to server backend. We could use sendfile(), but to remain
496 * more portable lets just read/write the darn thing.
498 static int fio_client_send_ini(struct fio_client *client, const char *filename)
505 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
507 fd = open(filename, O_RDONLY);
509 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
513 if (fstat(fd, &sb) < 0) {
514 log_err("fio: job file stat: %s\n", strerror(errno));
519 buf = malloc(sb.st_size);
524 ret = read(fd, p, len);
533 else if (errno == EAGAIN || errno == EINTR)
538 log_err("fio: failed reading job file %s\n", filename);
544 client->sent_job = 1;
545 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
551 int fio_clients_send_ini(const char *filename)
553 struct fio_client *client;
554 struct flist_head *entry, *tmp;
556 flist_for_each_safe(entry, tmp, &client_list) {
557 client = flist_entry(entry, struct fio_client, list);
559 if (fio_client_send_ini(client, filename))
560 remove_client(client);
562 client->sent_job = 1;
568 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
570 dst->max_val = le64_to_cpu(src->max_val);
571 dst->min_val = le64_to_cpu(src->min_val);
572 dst->samples = le64_to_cpu(src->samples);
575 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
577 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
578 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
581 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
585 dst->error = le32_to_cpu(src->error);
586 dst->groupid = le32_to_cpu(src->groupid);
587 dst->pid = le32_to_cpu(src->pid);
588 dst->members = le32_to_cpu(src->members);
590 for (i = 0; i < 2; i++) {
591 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
592 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
593 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
594 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
597 dst->usr_time = le64_to_cpu(src->usr_time);
598 dst->sys_time = le64_to_cpu(src->sys_time);
599 dst->ctx = le64_to_cpu(src->ctx);
600 dst->minf = le64_to_cpu(src->minf);
601 dst->majf = le64_to_cpu(src->majf);
602 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
604 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
605 fio_fp64_t *fps = &src->percentile_list[i];
606 fio_fp64_t *fpd = &dst->percentile_list[i];
608 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
611 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
612 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
613 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
614 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
617 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
618 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
619 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
622 for (i = 0; i < 2; i++)
623 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
624 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
626 for (i = 0; i < 3; i++) {
627 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
628 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
631 dst->total_submit = le64_to_cpu(src->total_submit);
632 dst->total_complete = le64_to_cpu(src->total_complete);
634 for (i = 0; i < 2; i++) {
635 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
636 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
639 dst->total_run_time = le64_to_cpu(src->total_run_time);
640 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
641 dst->total_err_count = le64_to_cpu(src->total_err_count);
642 dst->first_error = le32_to_cpu(src->first_error);
643 dst->kb_base = le32_to_cpu(src->kb_base);
646 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
650 for (i = 0; i < 2; i++) {
651 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
652 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
653 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
654 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
655 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
656 dst->agg[i] = le64_to_cpu(src->agg[i]);
659 dst->kb_base = le32_to_cpu(src->kb_base);
660 dst->groupid = le32_to_cpu(src->groupid);
663 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
665 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
667 show_thread_status(&p->ts, &p->rs);
669 if (sum_stat_clients == 1)
672 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
673 sum_group_stats(&client_gs, &p->rs);
676 client_ts.groupid = p->ts.groupid;
678 if (++sum_stat_nr == sum_stat_clients) {
679 strcpy(client_ts.name, "All clients");
680 show_thread_status(&client_ts, &client_gs);
684 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
686 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
688 show_group_stats(gs);
691 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
693 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
694 const char *buf = (const char *) pdu->buf;
698 name = client->name ? client->name : client->hostname;
700 if (!client->skip_newline)
701 fprintf(f_out, "<%s> ", name);
702 ret = fwrite(buf, pdu->buf_len, 1, f_out);
704 client->skip_newline = strchr(buf, '\n') == NULL;
707 static void convert_agg(struct disk_util_agg *agg)
711 for (i = 0; i < 2; i++) {
712 agg->ios[i] = le32_to_cpu(agg->ios[i]);
713 agg->merges[i] = le32_to_cpu(agg->merges[i]);
714 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
715 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
718 agg->io_ticks = le32_to_cpu(agg->io_ticks);
719 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
720 agg->slavecount = le32_to_cpu(agg->slavecount);
721 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
724 static void convert_dus(struct disk_util_stat *dus)
728 for (i = 0; i < 2; i++) {
729 dus->ios[i] = le32_to_cpu(dus->ios[i]);
730 dus->merges[i] = le32_to_cpu(dus->merges[i]);
731 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
732 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
735 dus->io_ticks = le32_to_cpu(dus->io_ticks);
736 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
737 dus->msec = le64_to_cpu(dus->msec);
740 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
742 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
744 if (!client->disk_stats_shown) {
745 client->disk_stats_shown = 1;
746 log_info("\nDisk stats (read/write):\n");
749 print_disk_util(&du->dus, &du->agg, terse_output);
752 static void convert_jobs_eta(struct jobs_eta *je)
756 je->nr_running = le32_to_cpu(je->nr_running);
757 je->nr_ramp = le32_to_cpu(je->nr_ramp);
758 je->nr_pending = le32_to_cpu(je->nr_pending);
759 je->files_open = le32_to_cpu(je->files_open);
761 for (i = 0; i < 2; i++) {
762 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
763 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
764 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
765 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
766 je->rate[i] = le32_to_cpu(je->rate[i]);
767 je->iops[i] = le32_to_cpu(je->iops[i]);
770 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
771 je->eta_sec = le64_to_cpu(je->eta_sec);
772 je->nr_threads = le32_to_cpu(je->nr_threads);
775 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
779 dst->nr_running += je->nr_running;
780 dst->nr_ramp += je->nr_ramp;
781 dst->nr_pending += je->nr_pending;
782 dst->files_open += je->files_open;
784 for (i = 0; i < 2; i++) {
785 dst->m_rate[i] += je->m_rate[i];
786 dst->t_rate[i] += je->t_rate[i];
787 dst->m_iops[i] += je->m_iops[i];
788 dst->t_iops[i] += je->t_iops[i];
789 dst->rate[i] += je->rate[i];
790 dst->iops[i] += je->iops[i];
793 dst->elapsed_sec += je->elapsed_sec;
795 if (je->eta_sec > dst->eta_sec)
796 dst->eta_sec = je->eta_sec;
798 dst->nr_threads += je->nr_threads;
799 /* we need to handle je->run_str too ... */
802 void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
804 if (!--eta->pending) {
810 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
812 struct fio_net_int_cmd *icmd = NULL;
813 struct flist_head *entry;
815 flist_for_each(entry, &client->cmd_list) {
816 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
818 if (cmd->tag == (uintptr_t) icmd)
825 log_err("fio: client: unable to find matching tag\n");
829 flist_del(&icmd->list);
830 cmd->tag = icmd->saved_tag;
834 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
836 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
837 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
839 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
841 assert(client->eta_in_flight == eta);
843 client->eta_in_flight = NULL;
844 flist_del_init(&client->eta_list);
846 if (client->ops->jobs_eta)
847 client->ops->jobs_eta(client, je);
849 fio_client_sum_jobs_eta(&eta->eta, je);
850 fio_client_dec_jobs_eta(eta, client->ops->eta);
853 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
855 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
856 const char *os, *arch;
859 os = fio_get_os_string(probe->os);
863 arch = fio_get_arch_string(probe->arch);
867 sprintf(bit, "%d-bit", probe->bpp * 8);
869 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
870 probe->hostname, probe->bigendian, bit, os, arch,
871 probe->fio_major, probe->fio_minor, probe->fio_patch);
874 client->name = strdup((char *) probe->hostname);
877 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
879 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
881 client->state = Client_started;
882 client->jobs = le32_to_cpu(pdu->jobs);
885 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
888 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
891 static void convert_stop(struct fio_net_cmd *cmd)
893 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
895 pdu->error = le32_to_cpu(pdu->error);
898 static void convert_text(struct fio_net_cmd *cmd)
900 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
902 pdu->level = le32_to_cpu(pdu->level);
903 pdu->buf_len = le32_to_cpu(pdu->buf_len);
904 pdu->log_sec = le64_to_cpu(pdu->log_sec);
905 pdu->log_usec = le64_to_cpu(pdu->log_usec);
908 int fio_handle_client(struct fio_client *client)
910 struct client_ops *ops = client->ops;
911 struct fio_net_cmd *cmd;
913 dprint(FD_NET, "client: handle %s\n", client->hostname);
915 cmd = fio_net_recv_cmd(client->fd);
919 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
920 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
922 switch (cmd->opcode) {
923 case FIO_NET_CMD_QUIT:
926 remove_client(client);
929 case FIO_NET_CMD_TEXT:
931 ops->text_op(client, cmd);
934 case FIO_NET_CMD_DU: {
935 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
937 convert_dus(&du->dus);
938 convert_agg(&du->agg);
940 ops->disk_util(client, cmd);
944 case FIO_NET_CMD_TS: {
945 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
947 convert_ts(&p->ts, &p->ts);
948 convert_gs(&p->rs, &p->rs);
950 ops->thread_status(client, cmd);
954 case FIO_NET_CMD_GS: {
955 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
959 ops->group_stats(client, cmd);
963 case FIO_NET_CMD_ETA: {
964 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
966 remove_reply_cmd(client, cmd);
967 convert_jobs_eta(je);
968 handle_eta(client, cmd);
972 case FIO_NET_CMD_PROBE:
973 remove_reply_cmd(client, cmd);
974 ops->probe(client, cmd);
977 case FIO_NET_CMD_SERVER_START:
978 client->state = Client_running;
981 case FIO_NET_CMD_START:
982 handle_start(client, cmd);
985 case FIO_NET_CMD_STOP: {
986 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
989 client->state = Client_stopped;
990 client->error = pdu->error;
991 ops->stop(client, cmd);
995 case FIO_NET_CMD_ADD_JOB:
997 ops->add_job(client, cmd);
1001 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1009 static void request_client_etas(struct client_ops *ops)
1011 struct fio_client *client;
1012 struct flist_head *entry;
1013 struct client_eta *eta;
1016 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1018 eta = malloc(sizeof(*eta));
1019 memset(&eta->eta, 0, sizeof(eta->eta));
1020 eta->pending = nr_clients;
1022 flist_for_each(entry, &client_list) {
1023 client = flist_entry(entry, struct fio_client, list);
1025 if (!flist_empty(&client->eta_list)) {
1029 if (client->state != Client_running)
1032 assert(!client->eta_in_flight);
1033 flist_add_tail(&client->eta_list, &eta_list);
1034 client->eta_in_flight = eta;
1035 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1036 (uintptr_t) eta, &client->cmd_list);
1040 fio_client_dec_jobs_eta(eta, ops->eta);
1042 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1045 static int client_check_cmd_timeout(struct fio_client *client,
1046 struct timeval *now)
1048 struct fio_net_int_cmd *cmd;
1049 struct flist_head *entry, *tmp;
1052 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1053 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1055 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1058 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1059 fio_server_op(cmd->cmd.opcode));
1060 flist_del(&cmd->list);
1065 return flist_empty(&client->cmd_list) && ret;
1068 static int fio_check_clients_timed_out(void)
1070 struct fio_client *client;
1071 struct flist_head *entry, *tmp;
1075 gettimeofday(&tv, NULL);
1077 flist_for_each_safe(entry, tmp, &client_list) {
1078 client = flist_entry(entry, struct fio_client, list);
1080 if (flist_empty(&client->cmd_list))
1083 if (!client_check_cmd_timeout(client, &tv))
1086 if (client->ops->timed_out)
1087 client->ops->timed_out(client);
1089 log_err("fio: client %s timed out\n", client->hostname);
1091 remove_client(client);
1098 int fio_handle_clients(struct client_ops *ops)
1100 struct pollfd *pfds;
1101 int i, ret = 0, retval = 0;
1103 gettimeofday(&eta_tv, NULL);
1105 pfds = malloc(nr_clients * sizeof(struct pollfd));
1107 sum_stat_clients = nr_clients;
1108 init_thread_stat(&client_ts);
1109 init_group_run_stat(&client_gs);
1111 while (!exit_backend && nr_clients) {
1112 struct flist_head *entry, *tmp;
1113 struct fio_client *client;
1116 flist_for_each_safe(entry, tmp, &client_list) {
1117 client = flist_entry(entry, struct fio_client, list);
1119 if (!client->sent_job && !client->ops->stay_connected &&
1120 flist_empty(&client->cmd_list)) {
1121 remove_client(client);
1125 pfds[i].fd = client->fd;
1126 pfds[i].events = POLLIN;
1133 assert(i == nr_clients);
1138 gettimeofday(&tv, NULL);
1139 if (mtime_since(&eta_tv, &tv) >= 900) {
1140 request_client_etas(ops);
1141 memcpy(&eta_tv, &tv, sizeof(tv));
1143 if (fio_check_clients_timed_out())
1147 ret = poll(pfds, nr_clients, 100);
1151 log_err("fio: poll clients: %s\n", strerror(errno));
1157 for (i = 0; i < nr_clients; i++) {
1158 if (!(pfds[i].revents & POLLIN))
1161 client = find_client_by_fd(pfds[i].fd);
1163 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1166 if (!fio_handle_client(client)) {
1167 log_info("client: host=%s disconnected\n",
1169 remove_client(client);
1171 } else if (client->error)