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 static 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_clients_terminate(void)
343 struct flist_head *entry;
344 struct fio_client *client;
346 dprint(FD_NET, "client: terminate clients\n");
348 flist_for_each(entry, &client_list) {
349 client = flist_entry(entry, struct fio_client, list);
351 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
355 static void sig_int(int sig)
357 dprint(FD_NET, "client: got signal %d\n", sig);
358 fio_clients_terminate();
361 static void client_signal_handler(void)
363 struct sigaction act;
365 memset(&act, 0, sizeof(act));
366 act.sa_handler = sig_int;
367 act.sa_flags = SA_RESTART;
368 sigaction(SIGINT, &act, NULL);
370 memset(&act, 0, sizeof(act));
371 act.sa_handler = sig_int;
372 act.sa_flags = SA_RESTART;
373 sigaction(SIGTERM, &act, NULL);
376 static void probe_client(struct fio_client *client)
378 dprint(FD_NET, "client: send probe\n");
380 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
383 static int send_client_cmd_line(struct fio_client *client)
385 struct cmd_single_line_pdu *cslp;
386 struct cmd_line_pdu *clp;
387 unsigned long offset;
393 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
395 lens = malloc(client->argc * sizeof(unsigned int));
398 * Find out how much mem we need
400 for (i = 0, mem = 0; i < client->argc; i++) {
401 lens[i] = strlen(client->argv[i]) + 1;
406 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
408 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
412 offset = sizeof(*clp);
414 for (i = 0; i < client->argc; i++) {
415 uint16_t arg_len = lens[i];
418 strcpy((char *) cslp->text, client->argv[i]);
419 cslp->len = cpu_to_le16(arg_len);
420 offset += sizeof(*cslp) + arg_len;
424 clp->lines = cpu_to_le16(client->argc);
425 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
430 int fio_clients_connect(void)
432 struct fio_client *client;
433 struct flist_head *entry, *tmp;
438 WSAStartup(MAKEWORD(2,2), &wsd);
441 dprint(FD_NET, "client: connect all\n");
443 client_signal_handler();
445 flist_for_each_safe(entry, tmp, &client_list) {
446 client = flist_entry(entry, struct fio_client, list);
448 ret = fio_client_connect(client);
450 remove_client(client);
454 probe_client(client);
456 if (client->argc > 1)
457 send_client_cmd_line(client);
463 int fio_start_client(struct fio_client *client)
465 dprint(FD_NET, "client: start %s\n", client->hostname);
466 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
469 int fio_start_all_clients(void)
471 struct fio_client *client;
472 struct flist_head *entry, *tmp;
475 dprint(FD_NET, "client: start all\n");
477 flist_for_each_safe(entry, tmp, &client_list) {
478 client = flist_entry(entry, struct fio_client, list);
480 ret = fio_start_client(client);
482 remove_client(client);
487 return flist_empty(&client_list);
491 * Send file contents to server backend. We could use sendfile(), but to remain
492 * more portable lets just read/write the darn thing.
494 static int fio_client_send_ini(struct fio_client *client, const char *filename)
501 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
503 fd = open(filename, O_RDONLY);
505 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
509 if (fstat(fd, &sb) < 0) {
510 log_err("fio: job file stat: %s\n", strerror(errno));
515 buf = malloc(sb.st_size);
520 ret = read(fd, p, len);
529 else if (errno == EAGAIN || errno == EINTR)
534 log_err("fio: failed reading job file %s\n", filename);
540 client->sent_job = 1;
541 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
547 int fio_clients_send_ini(const char *filename)
549 struct fio_client *client;
550 struct flist_head *entry, *tmp;
552 flist_for_each_safe(entry, tmp, &client_list) {
553 client = flist_entry(entry, struct fio_client, list);
555 if (fio_client_send_ini(client, filename))
556 remove_client(client);
558 client->sent_job = 1;
564 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
566 dst->max_val = le64_to_cpu(src->max_val);
567 dst->min_val = le64_to_cpu(src->min_val);
568 dst->samples = le64_to_cpu(src->samples);
571 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
573 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
574 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
577 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
581 dst->error = le32_to_cpu(src->error);
582 dst->groupid = le32_to_cpu(src->groupid);
583 dst->pid = le32_to_cpu(src->pid);
584 dst->members = le32_to_cpu(src->members);
586 for (i = 0; i < 2; i++) {
587 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
588 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
589 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
590 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
593 dst->usr_time = le64_to_cpu(src->usr_time);
594 dst->sys_time = le64_to_cpu(src->sys_time);
595 dst->ctx = le64_to_cpu(src->ctx);
596 dst->minf = le64_to_cpu(src->minf);
597 dst->majf = le64_to_cpu(src->majf);
598 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
600 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
601 fio_fp64_t *fps = &src->percentile_list[i];
602 fio_fp64_t *fpd = &dst->percentile_list[i];
604 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
607 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
608 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
609 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
610 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
613 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
614 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
615 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
618 for (i = 0; i < 2; i++)
619 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
620 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
622 for (i = 0; i < 3; i++) {
623 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
624 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
627 dst->total_submit = le64_to_cpu(src->total_submit);
628 dst->total_complete = le64_to_cpu(src->total_complete);
630 for (i = 0; i < 2; i++) {
631 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
632 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
635 dst->total_run_time = le64_to_cpu(src->total_run_time);
636 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
637 dst->total_err_count = le64_to_cpu(src->total_err_count);
638 dst->first_error = le32_to_cpu(src->first_error);
639 dst->kb_base = le32_to_cpu(src->kb_base);
642 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
646 for (i = 0; i < 2; i++) {
647 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
648 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
649 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
650 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
651 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
652 dst->agg[i] = le64_to_cpu(src->agg[i]);
655 dst->kb_base = le32_to_cpu(src->kb_base);
656 dst->groupid = le32_to_cpu(src->groupid);
659 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
661 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
663 show_thread_status(&p->ts, &p->rs);
665 if (sum_stat_clients == 1)
668 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
669 sum_group_stats(&client_gs, &p->rs);
672 client_ts.groupid = p->ts.groupid;
674 if (++sum_stat_nr == sum_stat_clients) {
675 strcpy(client_ts.name, "All clients");
676 show_thread_status(&client_ts, &client_gs);
680 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
682 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
684 show_group_stats(gs);
687 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
689 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
690 const char *buf = (const char *) pdu->buf;
694 name = client->name ? client->name : client->hostname;
696 if (!client->skip_newline)
697 fprintf(f_out, "<%s> ", name);
698 ret = fwrite(buf, pdu->buf_len, 1, f_out);
700 client->skip_newline = strchr(buf, '\n') == NULL;
703 static void convert_agg(struct disk_util_agg *agg)
707 for (i = 0; i < 2; i++) {
708 agg->ios[i] = le32_to_cpu(agg->ios[i]);
709 agg->merges[i] = le32_to_cpu(agg->merges[i]);
710 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
711 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
714 agg->io_ticks = le32_to_cpu(agg->io_ticks);
715 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
716 agg->slavecount = le32_to_cpu(agg->slavecount);
717 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
720 static void convert_dus(struct disk_util_stat *dus)
724 for (i = 0; i < 2; i++) {
725 dus->ios[i] = le32_to_cpu(dus->ios[i]);
726 dus->merges[i] = le32_to_cpu(dus->merges[i]);
727 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
728 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
731 dus->io_ticks = le32_to_cpu(dus->io_ticks);
732 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
733 dus->msec = le64_to_cpu(dus->msec);
736 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
738 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
740 if (!client->disk_stats_shown) {
741 client->disk_stats_shown = 1;
742 log_info("\nDisk stats (read/write):\n");
745 print_disk_util(&du->dus, &du->agg, terse_output);
748 static void convert_jobs_eta(struct jobs_eta *je)
752 je->nr_running = le32_to_cpu(je->nr_running);
753 je->nr_ramp = le32_to_cpu(je->nr_ramp);
754 je->nr_pending = le32_to_cpu(je->nr_pending);
755 je->files_open = le32_to_cpu(je->files_open);
757 for (i = 0; i < 2; i++) {
758 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
759 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
760 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
761 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
762 je->rate[i] = le32_to_cpu(je->rate[i]);
763 je->iops[i] = le32_to_cpu(je->iops[i]);
766 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
767 je->eta_sec = le64_to_cpu(je->eta_sec);
768 je->nr_threads = le32_to_cpu(je->nr_threads);
771 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
775 dst->nr_running += je->nr_running;
776 dst->nr_ramp += je->nr_ramp;
777 dst->nr_pending += je->nr_pending;
778 dst->files_open += je->files_open;
780 for (i = 0; i < 2; i++) {
781 dst->m_rate[i] += je->m_rate[i];
782 dst->t_rate[i] += je->t_rate[i];
783 dst->m_iops[i] += je->m_iops[i];
784 dst->t_iops[i] += je->t_iops[i];
785 dst->rate[i] += je->rate[i];
786 dst->iops[i] += je->iops[i];
789 dst->elapsed_sec += je->elapsed_sec;
791 if (je->eta_sec > dst->eta_sec)
792 dst->eta_sec = je->eta_sec;
794 dst->nr_threads += je->nr_threads;
795 /* we need to handle je->run_str too ... */
798 void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
800 if (!--eta->pending) {
806 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
808 struct fio_net_int_cmd *icmd = NULL;
809 struct flist_head *entry;
811 flist_for_each(entry, &client->cmd_list) {
812 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
814 if (cmd->tag == (uintptr_t) icmd)
821 log_err("fio: client: unable to find matching tag\n");
825 flist_del(&icmd->list);
826 cmd->tag = icmd->saved_tag;
830 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
832 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
833 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
835 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
837 assert(client->eta_in_flight == eta);
839 client->eta_in_flight = NULL;
840 flist_del_init(&client->eta_list);
842 fio_client_sum_jobs_eta(&eta->eta, je);
843 fio_client_dec_jobs_eta(eta, client->ops->eta);
846 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
848 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
849 const char *os, *arch;
852 os = fio_get_os_string(probe->os);
856 arch = fio_get_arch_string(probe->arch);
860 sprintf(bit, "%d-bit", probe->bpp * 8);
862 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
863 probe->hostname, probe->bigendian, bit, os, arch,
864 probe->fio_major, probe->fio_minor, probe->fio_patch);
867 client->name = strdup((char *) probe->hostname);
870 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
872 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
874 client->state = Client_started;
875 client->jobs = le32_to_cpu(pdu->jobs);
878 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
881 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
884 static void convert_stop(struct fio_net_cmd *cmd)
886 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
888 pdu->error = le32_to_cpu(pdu->error);
891 static void convert_text(struct fio_net_cmd *cmd)
893 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
895 pdu->level = le32_to_cpu(pdu->level);
896 pdu->buf_len = le32_to_cpu(pdu->buf_len);
897 pdu->log_sec = le64_to_cpu(pdu->log_sec);
898 pdu->log_usec = le64_to_cpu(pdu->log_usec);
901 int fio_handle_client(struct fio_client *client)
903 struct client_ops *ops = client->ops;
904 struct fio_net_cmd *cmd;
906 dprint(FD_NET, "client: handle %s\n", client->hostname);
908 cmd = fio_net_recv_cmd(client->fd);
912 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
913 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
915 switch (cmd->opcode) {
916 case FIO_NET_CMD_QUIT:
919 remove_client(client);
922 case FIO_NET_CMD_TEXT:
924 ops->text_op(client, cmd);
927 case FIO_NET_CMD_DU: {
928 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
930 convert_dus(&du->dus);
931 convert_agg(&du->agg);
933 ops->disk_util(client, cmd);
937 case FIO_NET_CMD_TS: {
938 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
940 convert_ts(&p->ts, &p->ts);
941 convert_gs(&p->rs, &p->rs);
943 ops->thread_status(client, cmd);
947 case FIO_NET_CMD_GS: {
948 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
952 ops->group_stats(client, cmd);
956 case FIO_NET_CMD_ETA: {
957 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
959 remove_reply_cmd(client, cmd);
960 convert_jobs_eta(je);
961 handle_eta(client, cmd);
965 case FIO_NET_CMD_PROBE:
966 remove_reply_cmd(client, cmd);
967 ops->probe(client, cmd);
970 case FIO_NET_CMD_SERVER_START:
971 client->state = Client_running;
974 case FIO_NET_CMD_START:
975 handle_start(client, cmd);
978 case FIO_NET_CMD_STOP: {
979 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
982 client->state = Client_stopped;
983 client->error = pdu->error;
984 ops->stop(client, cmd);
988 case FIO_NET_CMD_ADD_JOB:
990 ops->add_job(client, cmd);
994 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1002 static void request_client_etas(struct client_ops *ops)
1004 struct fio_client *client;
1005 struct flist_head *entry;
1006 struct client_eta *eta;
1009 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1011 eta = malloc(sizeof(*eta));
1012 memset(&eta->eta, 0, sizeof(eta->eta));
1013 eta->pending = nr_clients;
1015 flist_for_each(entry, &client_list) {
1016 client = flist_entry(entry, struct fio_client, list);
1018 if (!flist_empty(&client->eta_list)) {
1022 if (client->state != Client_running)
1025 assert(!client->eta_in_flight);
1026 flist_add_tail(&client->eta_list, &eta_list);
1027 client->eta_in_flight = eta;
1028 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1029 (uintptr_t) eta, &client->cmd_list);
1033 fio_client_dec_jobs_eta(eta, ops->eta);
1035 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1038 static int client_check_cmd_timeout(struct fio_client *client,
1039 struct timeval *now)
1041 struct fio_net_int_cmd *cmd;
1042 struct flist_head *entry, *tmp;
1045 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1046 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1048 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1051 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1052 fio_server_op(cmd->cmd.opcode));
1053 flist_del(&cmd->list);
1058 return flist_empty(&client->cmd_list) && ret;
1061 static int fio_check_clients_timed_out(void)
1063 struct fio_client *client;
1064 struct flist_head *entry, *tmp;
1068 gettimeofday(&tv, NULL);
1070 flist_for_each_safe(entry, tmp, &client_list) {
1071 client = flist_entry(entry, struct fio_client, list);
1073 if (flist_empty(&client->cmd_list))
1076 if (!client_check_cmd_timeout(client, &tv))
1079 if (client->ops->timed_out)
1080 client->ops->timed_out(client);
1082 log_err("fio: client %s timed out\n", client->hostname);
1084 remove_client(client);
1091 int fio_handle_clients(struct client_ops *ops)
1093 struct pollfd *pfds;
1094 int i, ret = 0, retval = 0;
1096 gettimeofday(&eta_tv, NULL);
1098 pfds = malloc(nr_clients * sizeof(struct pollfd));
1100 sum_stat_clients = nr_clients;
1101 init_thread_stat(&client_ts);
1102 init_group_run_stat(&client_gs);
1104 while (!exit_backend && nr_clients) {
1105 struct flist_head *entry, *tmp;
1106 struct fio_client *client;
1109 flist_for_each_safe(entry, tmp, &client_list) {
1110 client = flist_entry(entry, struct fio_client, list);
1112 if (!client->sent_job && !client->ops->stay_connected &&
1113 flist_empty(&client->cmd_list)) {
1114 remove_client(client);
1118 pfds[i].fd = client->fd;
1119 pfds[i].events = POLLIN;
1126 assert(i == nr_clients);
1131 gettimeofday(&tv, NULL);
1132 if (mtime_since(&eta_tv, &tv) >= 900) {
1133 request_client_etas(ops);
1134 memcpy(&eta_tv, &tv, sizeof(tv));
1136 if (fio_check_clients_timed_out())
1140 ret = poll(pfds, nr_clients, 100);
1144 log_err("fio: poll clients: %s\n", strerror(errno));
1150 for (i = 0; i < nr_clients; i++) {
1151 if (!(pfds[i].revents & POLLIN))
1154 client = find_client_by_fd(pfds[i].fd);
1156 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1159 if (!fio_handle_client(client)) {
1160 log_info("client: host=%s disconnected\n",
1162 remove_client(client);
1164 } else if (client->error)