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_net_cmd *cmd);
26 static void handle_gs(struct fio_net_cmd *cmd);
27 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd);
28 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
29 static void handle_text(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 .probe = handle_probe,
40 static struct timeval eta_tv;
51 static FLIST_HEAD(client_list);
52 static FLIST_HEAD(eta_list);
54 static FLIST_HEAD(arg_list);
56 static struct thread_stat client_ts;
57 static struct group_run_stats client_gs;
58 static int sum_stat_clients;
59 static int sum_stat_nr;
61 #define FIO_CLIENT_HASH_BITS 7
62 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
63 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
64 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
66 static void fio_client_add_hash(struct fio_client *client)
68 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
70 bucket &= FIO_CLIENT_HASH_MASK;
71 flist_add(&client->hash_list, &client_hash[bucket]);
74 static void fio_client_remove_hash(struct fio_client *client)
76 if (!flist_empty(&client->hash_list))
77 flist_del_init(&client->hash_list);
80 static void fio_init fio_client_hash_init(void)
84 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
85 INIT_FLIST_HEAD(&client_hash[i]);
88 static struct fio_client *find_client_by_fd(int fd)
90 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
91 struct fio_client *client;
92 struct flist_head *entry;
94 flist_for_each(entry, &client_hash[bucket]) {
95 client = flist_entry(entry, struct fio_client, hash_list);
104 static void remove_client(struct fio_client *client)
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, display_thread_status);
116 free(client->hostname);
127 static void __fio_client_add_cmd_option(struct fio_client *client,
132 index = client->argc++;
133 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
134 client->argv[index] = strdup(opt);
135 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
138 void fio_client_add_cmd_option(void *cookie, const char *opt)
140 struct fio_client *client = cookie;
141 struct flist_head *entry;
146 __fio_client_add_cmd_option(client, opt);
149 * Duplicate arguments to shared client group
151 flist_for_each(entry, &arg_list) {
152 client = flist_entry(entry, struct fio_client, arg_list);
154 __fio_client_add_cmd_option(client, opt);
158 struct fio_client *fio_client_add_explicit(const char *hostname, int type,
161 struct fio_client *client;
163 client = malloc(sizeof(*client));
164 memset(client, 0, sizeof(*client));
166 INIT_FLIST_HEAD(&client->list);
167 INIT_FLIST_HEAD(&client->hash_list);
168 INIT_FLIST_HEAD(&client->arg_list);
169 INIT_FLIST_HEAD(&client->eta_list);
170 INIT_FLIST_HEAD(&client->cmd_list);
172 client->hostname = strdup(hostname);
174 if (type == Fio_client_socket)
179 ipv6 = type == Fio_client_ipv6;
180 if (fio_server_parse_host(hostname, &ipv6,
181 &client->addr.sin_addr,
182 &client->addr6.sin6_addr))
190 __fio_client_add_cmd_option(client, "fio");
192 flist_add(&client->list, &client_list);
194 dprint(FD_NET, "client: added <%s>\n", client->hostname);
201 int fio_client_add(const char *hostname, void **cookie)
203 struct fio_client *existing = *cookie;
204 struct fio_client *client;
208 * We always add our "exec" name as the option, hence 1
211 if (existing->argc == 1)
212 flist_add_tail(&existing->arg_list, &arg_list);
214 while (!flist_empty(&arg_list))
215 flist_del_init(arg_list.next);
219 client = malloc(sizeof(*client));
220 memset(client, 0, sizeof(*client));
222 INIT_FLIST_HEAD(&client->list);
223 INIT_FLIST_HEAD(&client->hash_list);
224 INIT_FLIST_HEAD(&client->arg_list);
225 INIT_FLIST_HEAD(&client->eta_list);
226 INIT_FLIST_HEAD(&client->cmd_list);
228 if (fio_server_parse_string(hostname, &client->hostname,
229 &client->is_sock, &client->port,
230 &client->addr.sin_addr,
231 &client->addr6.sin6_addr,
237 __fio_client_add_cmd_option(client, "fio");
239 flist_add(&client->list, &client_list);
241 dprint(FD_NET, "client: added <%s>\n", client->hostname);
246 static int fio_client_connect_ip(struct fio_client *client)
248 struct sockaddr *addr;
249 fio_socklen_t socklen;
253 client->addr6.sin6_family = AF_INET6;
254 client->addr6.sin6_port = htons(client->port);
256 addr = (struct sockaddr *) &client->addr6;
257 socklen = sizeof(client->addr6);
259 client->addr.sin_family = AF_INET;
260 client->addr.sin_port = htons(client->port);
262 addr = (struct sockaddr *) &client->addr;
263 socklen = sizeof(client->addr);
266 fd = socket(domain, SOCK_STREAM, 0);
268 log_err("fio: socket: %s\n", strerror(errno));
272 if (connect(fd, addr, socklen) < 0) {
273 log_err("fio: connect: %s\n", strerror(errno));
274 log_err("fio: failed to connect to %s:%u\n", client->hostname,
283 static int fio_client_connect_sock(struct fio_client *client)
285 struct sockaddr_un *addr = &client->addr_un;
289 memset(addr, 0, sizeof(*addr));
290 addr->sun_family = AF_UNIX;
291 strcpy(addr->sun_path, client->hostname);
293 fd = socket(AF_UNIX, SOCK_STREAM, 0);
295 log_err("fio: socket: %s\n", strerror(errno));
299 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
300 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
301 log_err("fio: connect; %s\n", strerror(errno));
309 static int fio_client_connect(struct fio_client *client)
313 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
316 fd = fio_client_connect_sock(client);
318 fd = fio_client_connect_ip(client);
320 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
326 fio_client_add_hash(client);
327 client->state = Client_connected;
331 void fio_clients_terminate(void)
333 struct flist_head *entry;
334 struct fio_client *client;
336 dprint(FD_NET, "client: terminate clients\n");
338 flist_for_each(entry, &client_list) {
339 client = flist_entry(entry, struct fio_client, list);
341 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
345 static void sig_int(int sig)
347 dprint(FD_NET, "client: got signal %d\n", sig);
348 fio_clients_terminate();
351 static void client_signal_handler(void)
353 struct sigaction act;
355 memset(&act, 0, sizeof(act));
356 act.sa_handler = sig_int;
357 act.sa_flags = SA_RESTART;
358 sigaction(SIGINT, &act, NULL);
360 memset(&act, 0, sizeof(act));
361 act.sa_handler = sig_int;
362 act.sa_flags = SA_RESTART;
363 sigaction(SIGTERM, &act, NULL);
366 static void probe_client(struct fio_client *client)
368 dprint(FD_NET, "client: send probe\n");
370 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
373 static int send_client_cmd_line(struct fio_client *client)
375 struct cmd_single_line_pdu *cslp;
376 struct cmd_line_pdu *clp;
377 unsigned long offset;
383 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
385 lens = malloc(client->argc * sizeof(unsigned int));
388 * Find out how much mem we need
390 for (i = 0, mem = 0; i < client->argc; i++) {
391 lens[i] = strlen(client->argv[i]) + 1;
396 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
398 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
402 offset = sizeof(*clp);
404 for (i = 0; i < client->argc; i++) {
405 uint16_t arg_len = lens[i];
408 strcpy((char *) cslp->text, client->argv[i]);
409 cslp->len = cpu_to_le16(arg_len);
410 offset += sizeof(*cslp) + arg_len;
414 clp->lines = cpu_to_le16(client->argc);
415 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
420 int fio_clients_connect(void)
422 struct fio_client *client;
423 struct flist_head *entry, *tmp;
428 WSAStartup(MAKEWORD(2,2), &wsd);
431 dprint(FD_NET, "client: connect all\n");
433 client_signal_handler();
435 flist_for_each_safe(entry, tmp, &client_list) {
436 client = flist_entry(entry, struct fio_client, list);
438 ret = fio_client_connect(client);
440 remove_client(client);
444 probe_client(client);
446 if (client->argc > 1)
447 send_client_cmd_line(client);
454 * Send file contents to server backend. We could use sendfile(), but to remain
455 * more portable lets just read/write the darn thing.
457 static int fio_client_send_ini(struct fio_client *client, const char *filename)
464 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
466 fd = open(filename, O_RDONLY);
468 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
472 if (fstat(fd, &sb) < 0) {
473 log_err("fio: job file stat: %s\n", strerror(errno));
478 buf = malloc(sb.st_size);
483 ret = read(fd, p, len);
492 else if (errno == EAGAIN || errno == EINTR)
497 log_err("fio: failed reading job file %s\n", filename);
503 client->sent_job = 1;
504 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
510 int fio_clients_send_ini(const char *filename)
512 struct fio_client *client;
513 struct flist_head *entry, *tmp;
515 flist_for_each_safe(entry, tmp, &client_list) {
516 client = flist_entry(entry, struct fio_client, list);
518 if (fio_client_send_ini(client, filename))
519 remove_client(client);
521 client->sent_job = 1;
527 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
529 dst->max_val = le64_to_cpu(src->max_val);
530 dst->min_val = le64_to_cpu(src->min_val);
531 dst->samples = le64_to_cpu(src->samples);
534 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
536 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
537 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
540 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
544 dst->error = le32_to_cpu(src->error);
545 dst->groupid = le32_to_cpu(src->groupid);
546 dst->pid = le32_to_cpu(src->pid);
547 dst->members = le32_to_cpu(src->members);
549 for (i = 0; i < 2; i++) {
550 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
551 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
552 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
553 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
556 dst->usr_time = le64_to_cpu(src->usr_time);
557 dst->sys_time = le64_to_cpu(src->sys_time);
558 dst->ctx = le64_to_cpu(src->ctx);
559 dst->minf = le64_to_cpu(src->minf);
560 dst->majf = le64_to_cpu(src->majf);
561 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
563 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
564 fio_fp64_t *fps = &src->percentile_list[i];
565 fio_fp64_t *fpd = &dst->percentile_list[i];
567 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
570 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
571 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
572 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
573 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
576 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
577 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
578 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
581 for (i = 0; i < 2; i++)
582 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
583 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
585 for (i = 0; i < 3; i++) {
586 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
587 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
590 dst->total_submit = le64_to_cpu(src->total_submit);
591 dst->total_complete = le64_to_cpu(src->total_complete);
593 for (i = 0; i < 2; i++) {
594 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
595 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
598 dst->total_run_time = le64_to_cpu(src->total_run_time);
599 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
600 dst->total_err_count = le64_to_cpu(src->total_err_count);
601 dst->first_error = le32_to_cpu(src->first_error);
602 dst->kb_base = le32_to_cpu(src->kb_base);
605 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
609 for (i = 0; i < 2; i++) {
610 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
611 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
612 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
613 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
614 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
615 dst->agg[i] = le64_to_cpu(src->agg[i]);
618 dst->kb_base = le32_to_cpu(src->kb_base);
619 dst->groupid = le32_to_cpu(src->groupid);
622 static void handle_ts(struct fio_net_cmd *cmd)
624 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
626 convert_ts(&p->ts, &p->ts);
627 convert_gs(&p->rs, &p->rs);
629 show_thread_status(&p->ts, &p->rs);
631 if (sum_stat_clients == 1)
634 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
635 sum_group_stats(&client_gs, &p->rs);
638 client_ts.groupid = p->ts.groupid;
640 if (++sum_stat_nr == sum_stat_clients) {
641 strcpy(client_ts.name, "All clients");
642 show_thread_status(&client_ts, &client_gs);
646 static void handle_gs(struct fio_net_cmd *cmd)
648 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
651 show_group_stats(gs);
654 static void convert_agg(struct disk_util_agg *agg)
658 for (i = 0; i < 2; i++) {
659 agg->ios[i] = le32_to_cpu(agg->ios[i]);
660 agg->merges[i] = le32_to_cpu(agg->merges[i]);
661 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
662 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
665 agg->io_ticks = le32_to_cpu(agg->io_ticks);
666 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
667 agg->slavecount = le32_to_cpu(agg->slavecount);
668 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
671 static void convert_dus(struct disk_util_stat *dus)
675 for (i = 0; i < 2; i++) {
676 dus->ios[i] = le32_to_cpu(dus->ios[i]);
677 dus->merges[i] = le32_to_cpu(dus->merges[i]);
678 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
679 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
682 dus->io_ticks = le32_to_cpu(dus->io_ticks);
683 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
684 dus->msec = le64_to_cpu(dus->msec);
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;
704 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
706 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
708 convert_dus(&du->dus);
709 convert_agg(&du->agg);
711 if (!client->disk_stats_shown) {
712 client->disk_stats_shown = 1;
713 log_info("\nDisk stats (read/write):\n");
716 print_disk_util(&du->dus, &du->agg, terse_output);
719 void fio_client_convert_jobs_eta(struct jobs_eta *je)
723 je->nr_running = le32_to_cpu(je->nr_running);
724 je->nr_ramp = le32_to_cpu(je->nr_ramp);
725 je->nr_pending = le32_to_cpu(je->nr_pending);
726 je->files_open = le32_to_cpu(je->files_open);
728 for (i = 0; i < 2; i++) {
729 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
730 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
731 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
732 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
733 je->rate[i] = le32_to_cpu(je->rate[i]);
734 je->iops[i] = le32_to_cpu(je->iops[i]);
737 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
738 je->eta_sec = le64_to_cpu(je->eta_sec);
741 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
745 dst->nr_running += je->nr_running;
746 dst->nr_ramp += je->nr_ramp;
747 dst->nr_pending += je->nr_pending;
748 dst->files_open += je->files_open;
750 for (i = 0; i < 2; i++) {
751 dst->m_rate[i] += je->m_rate[i];
752 dst->t_rate[i] += je->t_rate[i];
753 dst->m_iops[i] += je->m_iops[i];
754 dst->t_iops[i] += je->t_iops[i];
755 dst->rate[i] += je->rate[i];
756 dst->iops[i] += je->iops[i];
759 dst->elapsed_sec += je->elapsed_sec;
761 if (je->eta_sec > dst->eta_sec)
762 dst->eta_sec = je->eta_sec;
765 void fio_client_dec_jobs_eta(struct client_eta *eta, void (*fn)(struct jobs_eta *))
767 if (!--eta->pending) {
773 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
775 struct fio_net_int_cmd *icmd = NULL;
776 struct flist_head *entry;
778 flist_for_each(entry, &client->cmd_list) {
779 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
781 if (cmd->tag == (uintptr_t) icmd)
788 log_err("fio: client: unable to find matching tag\n");
792 flist_del(&icmd->list);
793 cmd->tag = icmd->saved_tag;
797 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
799 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
800 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
802 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
804 assert(client->eta_in_flight == eta);
806 client->eta_in_flight = NULL;
807 flist_del_init(&client->eta_list);
809 fio_client_convert_jobs_eta(je);
810 fio_client_sum_jobs_eta(&eta->eta, je);
811 fio_client_dec_jobs_eta(eta, display_thread_status);
814 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
816 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
817 const char *os, *arch;
820 os = fio_get_os_string(probe->os);
824 arch = fio_get_arch_string(probe->arch);
828 sprintf(bit, "%d-bit", probe->bpp * 8);
830 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
831 probe->hostname, probe->bigendian, bit, os, arch,
832 probe->fio_major, probe->fio_minor, probe->fio_patch);
835 client->name = strdup((char *) probe->hostname);
838 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
840 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
842 client->state = Client_started;
843 client->jobs = le32_to_cpu(pdu->jobs);
846 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
848 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
850 client->state = Client_stopped;
851 client->error = le32_to_cpu(pdu->error);
854 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
857 static void convert_text(struct fio_net_cmd *cmd)
859 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
861 pdu->level = le32_to_cpu(pdu->level);
862 pdu->buf_len = le32_to_cpu(pdu->buf_len);
863 pdu->log_sec = le64_to_cpu(pdu->log_sec);
864 pdu->log_usec = le64_to_cpu(pdu->log_usec);
867 int fio_handle_client(struct fio_client *client, struct client_ops *ops)
869 struct fio_net_cmd *cmd;
871 dprint(FD_NET, "client: handle %s\n", client->hostname);
873 cmd = fio_net_recv_cmd(client->fd);
877 dprint(FD_NET, "client: got cmd op %s from %s\n",
878 fio_server_op(cmd->opcode), client->hostname);
880 switch (cmd->opcode) {
881 case FIO_NET_CMD_QUIT:
884 remove_client(client);
887 case FIO_NET_CMD_TEXT:
889 ops->text_op(client, cmd);
893 ops->disk_util(client, cmd);
897 ops->thread_status(cmd);
901 ops->group_stats(cmd);
904 case FIO_NET_CMD_ETA:
905 remove_reply_cmd(client, cmd);
906 ops->eta(client, cmd);
909 case FIO_NET_CMD_PROBE:
910 remove_reply_cmd(client, cmd);
911 ops->probe(client, cmd);
914 case FIO_NET_CMD_RUN:
915 client->state = Client_running;
918 case FIO_NET_CMD_START:
919 handle_start(client, cmd);
922 case FIO_NET_CMD_STOP:
923 handle_stop(client, cmd);
926 case FIO_NET_CMD_ADD_JOB:
928 ops->add_job(client, cmd);
932 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
940 static void request_client_etas(void)
942 struct fio_client *client;
943 struct flist_head *entry;
944 struct client_eta *eta;
947 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
949 eta = malloc(sizeof(*eta));
950 memset(&eta->eta, 0, sizeof(eta->eta));
951 eta->pending = nr_clients;
953 flist_for_each(entry, &client_list) {
954 client = flist_entry(entry, struct fio_client, list);
956 if (!flist_empty(&client->eta_list)) {
960 if (client->state != Client_running)
963 assert(!client->eta_in_flight);
964 flist_add_tail(&client->eta_list, &eta_list);
965 client->eta_in_flight = eta;
966 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
967 (uintptr_t) eta, &client->cmd_list);
971 fio_client_dec_jobs_eta(eta, display_thread_status);
973 dprint(FD_NET, "client: requested eta tag %p\n", eta);
976 static int client_check_cmd_timeout(struct fio_client *client,
979 struct fio_net_int_cmd *cmd;
980 struct flist_head *entry, *tmp;
983 flist_for_each_safe(entry, tmp, &client->cmd_list) {
984 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
986 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
989 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
990 fio_server_op(cmd->cmd.opcode));
991 flist_del(&cmd->list);
996 return flist_empty(&client->cmd_list) && ret;
999 static int fio_client_timed_out(struct client_ops *ops)
1001 struct fio_client *client;
1002 struct flist_head *entry, *tmp;
1006 gettimeofday(&tv, NULL);
1008 flist_for_each_safe(entry, tmp, &client_list) {
1009 client = flist_entry(entry, struct fio_client, list);
1011 if (flist_empty(&client->cmd_list))
1014 if (!client_check_cmd_timeout(client, &tv))
1018 ops->timed_out(client);
1020 log_err("fio: client %s timed out\n", client->hostname);
1022 remove_client(client);
1029 int fio_handle_clients(struct client_ops *ops)
1031 struct pollfd *pfds;
1032 int i, ret = 0, retval = 0;
1034 gettimeofday(&eta_tv, NULL);
1036 pfds = malloc(nr_clients * sizeof(struct pollfd));
1038 sum_stat_clients = nr_clients;
1039 init_thread_stat(&client_ts);
1040 init_group_run_stat(&client_gs);
1042 while (!exit_backend && nr_clients) {
1043 struct flist_head *entry, *tmp;
1044 struct fio_client *client;
1047 flist_for_each_safe(entry, tmp, &client_list) {
1048 client = flist_entry(entry, struct fio_client, list);
1050 if (!client->sent_job && !ops->stay_connected &&
1051 flist_empty(&client->cmd_list)) {
1052 remove_client(client);
1056 pfds[i].fd = client->fd;
1057 pfds[i].events = POLLIN;
1064 assert(i == nr_clients);
1069 gettimeofday(&tv, NULL);
1070 if (mtime_since(&eta_tv, &tv) >= 900) {
1071 request_client_etas();
1072 memcpy(&eta_tv, &tv, sizeof(tv));
1074 if (fio_client_timed_out(ops))
1078 ret = poll(pfds, nr_clients, 100);
1082 log_err("fio: poll clients: %s\n", strerror(errno));
1088 for (i = 0; i < nr_clients; i++) {
1089 if (!(pfds[i].revents & POLLIN))
1092 client = find_client_by_fd(pfds[i].fd);
1094 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1097 if (!fio_handle_client(client, ops)) {
1098 log_info("client: host=%s disconnected\n",
1100 remove_client(client);
1102 } else if (client->error)