12 #include <netinet/in.h>
13 #include <arpa/inet.h>
18 #include "crc/crc32.h"
22 struct flist_head list;
23 struct sockaddr_in addr;
42 static FLIST_HEAD(client_list);
44 static int handle_client(struct fio_client *client, int one);
46 static struct fio_client *find_client_by_fd(int fd)
48 struct fio_client *client;
49 struct flist_head *entry;
51 flist_for_each(entry, &client_list) {
52 client = flist_entry(entry, struct fio_client, list);
61 static struct fio_client *find_client_by_name(const char *name)
63 struct fio_client *client;
64 struct flist_head *entry;
66 flist_for_each(entry, &client_list) {
67 client = flist_entry(entry, struct fio_client, list);
69 if (!strcmp(name, client->hostname))
76 static void remove_client(struct fio_client *client)
78 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
79 flist_del(&client->list);
82 free(client->hostname);
89 static void __fio_client_add_cmd_option(struct fio_client *client,
94 index = client->argc++;
95 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
96 client->argv[index] = strdup(opt);
97 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
100 void fio_client_add_cmd_option(const char *hostname, const char *opt)
102 struct fio_client *client;
104 if (!hostname || !opt)
107 client = find_client_by_name(hostname);
109 log_err("fio: unknown client %s\n", hostname);
113 __fio_client_add_cmd_option(client, opt);
116 void fio_client_add(const char *hostname)
118 struct fio_client *client;
120 dprint(FD_NET, "client: added <%s>\n", hostname);
121 client = malloc(sizeof(*client));
122 memset(client, 0, sizeof(*client));
124 client->hostname = strdup(hostname);
127 __fio_client_add_cmd_option(client, "fio");
129 flist_add(&client->list, &client_list);
133 static int fio_client_connect(struct fio_client *client)
137 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
139 memset(&client->addr, 0, sizeof(client->addr));
140 client->addr.sin_family = AF_INET;
141 client->addr.sin_port = htons(fio_net_port);
143 if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) {
144 struct hostent *hent;
146 hent = gethostbyname(client->hostname);
148 log_err("fio: gethostbyname: %s\n", strerror(errno));
152 memcpy(&client->addr.sin_addr, hent->h_addr, 4);
155 fd = socket(AF_INET, SOCK_STREAM, 0);
157 log_err("fio: socket: %s\n", strerror(errno));
161 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
162 log_err("fio: connect: %s\n", strerror(errno));
163 log_err("fio: failed to connect to %s\n", client->hostname);
168 client->state = Client_connected;
172 void fio_clients_terminate(void)
174 struct flist_head *entry;
175 struct fio_client *client;
177 dprint(FD_NET, "client: terminate clients\n");
179 flist_for_each(entry, &client_list) {
180 client = flist_entry(entry, struct fio_client, list);
182 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
186 static void sig_int(int sig)
188 dprint(FD_NET, "client: got sign %d\n", sig);
189 fio_clients_terminate();
192 static void client_signal_handler(void)
194 struct sigaction act;
196 memset(&act, 0, sizeof(act));
197 act.sa_handler = sig_int;
198 act.sa_flags = SA_RESTART;
199 sigaction(SIGINT, &act, NULL);
201 memset(&act, 0, sizeof(act));
202 act.sa_handler = sig_int;
203 act.sa_flags = SA_RESTART;
204 sigaction(SIGTERM, &act, NULL);
207 static void probe_client(struct fio_client *client)
209 dprint(FD_NET, "client: send probe\n");
211 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
212 handle_client(client, 1);
215 static int send_client_cmd_line(struct fio_client *client)
217 struct cmd_line_pdu *pdu;
220 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
222 pdu = malloc(sizeof(*pdu));
223 for (i = 0; i < client->argc; i++)
224 strcpy((char *) pdu->argv[i], client->argv[i]);
226 pdu->argc = cpu_to_le16(client->argc);
227 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
232 int fio_clients_connect(void)
234 struct fio_client *client;
235 struct flist_head *entry, *tmp;
238 dprint(FD_NET, "client: connect all\n");
240 client_signal_handler();
242 flist_for_each_safe(entry, tmp, &client_list) {
243 client = flist_entry(entry, struct fio_client, list);
245 ret = fio_client_connect(client);
247 remove_client(client);
251 probe_client(client);
253 if (client->argc > 1)
254 send_client_cmd_line(client);
261 * Send file contents to server backend. We could use sendfile(), but to remain
262 * more portable lets just read/write the darn thing.
264 static int fio_client_send_ini(struct fio_client *client, const char *filename)
271 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
273 fd = open(filename, O_RDONLY);
275 log_err("fio: job file open: %s\n", strerror(errno));
279 if (fstat(fd, &sb) < 0) {
280 log_err("fio: job file stat: %s\n", strerror(errno));
284 buf = malloc(sb.st_size);
289 ret = read(fd, p, len);
298 else if (errno == EAGAIN || errno == EINTR)
303 log_err("fio: failed reading job file %s\n", filename);
307 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size);
312 int fio_clients_send_ini(const char *filename)
314 struct fio_client *client;
315 struct flist_head *entry, *tmp;
317 flist_for_each_safe(entry, tmp, &client_list) {
318 client = flist_entry(entry, struct fio_client, list);
320 if (fio_client_send_ini(client, filename))
321 remove_client(client);
327 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
329 dst->max_val = le64_to_cpu(src->max_val);
330 dst->min_val = le64_to_cpu(src->min_val);
331 dst->samples = le64_to_cpu(src->samples);
333 dst->mean = __le64_to_cpu(src->mean);
334 dst->S = __le64_to_cpu(src->S);
337 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
341 dst->error = le32_to_cpu(src->error);
342 dst->groupid = le32_to_cpu(src->groupid);
343 dst->pid = le32_to_cpu(src->pid);
344 dst->members = le32_to_cpu(src->members);
346 for (i = 0; i < 2; i++) {
347 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
348 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
349 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
350 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
353 dst->usr_time = le64_to_cpu(src->usr_time);
354 dst->sys_time = le64_to_cpu(src->sys_time);
355 dst->ctx = le64_to_cpu(src->ctx);
356 dst->minf = le64_to_cpu(src->minf);
357 dst->majf = le64_to_cpu(src->majf);
358 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
359 dst->percentile_list = NULL;
361 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
362 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
363 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
364 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
367 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
368 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
369 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
372 for (i = 0; i < 2; i++)
373 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
374 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
376 for (i = 0; i < 3; i++) {
377 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
378 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
381 dst->total_submit = le64_to_cpu(src->total_submit);
382 dst->total_complete = le64_to_cpu(src->total_complete);
384 for (i = 0; i < 2; i++) {
385 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
386 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
389 dst->total_run_time = le64_to_cpu(src->total_run_time);
390 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
391 dst->total_err_count = le64_to_cpu(src->total_err_count);
392 dst->first_error = le32_to_cpu(src->first_error);
393 dst->kb_base = le32_to_cpu(src->kb_base);
396 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
400 for (i = 0; i < 2; i++) {
401 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
402 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
403 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
404 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
405 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
406 dst->agg[i] = le64_to_cpu(src->agg[i]);
409 dst->kb_base = le32_to_cpu(src->kb_base);
410 dst->groupid = le32_to_cpu(src->groupid);
413 static void handle_ts(struct fio_net_cmd *cmd)
415 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
417 convert_ts(&p->ts, &p->ts);
418 convert_gs(&p->rs, &p->rs);
420 show_thread_status(&p->ts, &p->rs);
423 static void handle_gs(struct fio_net_cmd *cmd)
425 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
428 show_group_stats(gs);
431 static void handle_eta(struct fio_net_cmd *cmd)
433 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
436 je->nr_running = le32_to_cpu(je->nr_running);
437 je->nr_ramp = le32_to_cpu(je->nr_ramp);
438 je->nr_pending = le32_to_cpu(je->nr_pending);
439 je->files_open = le32_to_cpu(je->files_open);
440 je->m_rate = le32_to_cpu(je->m_rate);
441 je->t_rate = le32_to_cpu(je->t_rate);
442 je->m_iops = le32_to_cpu(je->m_iops);
443 je->t_iops = le32_to_cpu(je->t_iops);
445 for (i = 0; i < 2; i++) {
446 je->rate[i] = le32_to_cpu(je->rate[i]);
447 je->iops[i] = le32_to_cpu(je->iops[i]);
450 je->elapsed_sec = le32_to_cpu(je->nr_running);
451 je->eta_sec = le64_to_cpu(je->eta_sec);
453 display_thread_status(je);
456 static void handle_probe(struct fio_net_cmd *cmd)
458 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
460 log_info("Probe: hostname=%s, fio ver %u.%u.%u\n", probe->hostname,
461 probe->fio_major, probe->fio_minor, probe->fio_patch);
464 static int handle_client(struct fio_client *client, int one)
466 struct fio_net_cmd *cmd;
469 dprint(FD_NET, "client: handle %s\n", client->hostname);
471 while ((cmd = fio_net_recv_cmd(client->fd, 1)) != NULL) {
472 dprint(FD_NET, "%s: got cmd op %d\n", client->hostname,
475 switch (cmd->opcode) {
476 case FIO_NET_CMD_QUIT:
477 remove_client(client);
481 case FIO_NET_CMD_TEXT: {
482 const char *buf = (const char *) cmd->payload;
484 if (!client->skip_newline)
485 fprintf(f_out, "Client <%s>: ", client->hostname);
486 fwrite(buf, cmd->pdu_len, 1, f_out);
488 client->skip_newline = strchr(buf, '\n') == NULL;
500 case FIO_NET_CMD_ETA:
504 case FIO_NET_CMD_PROBE:
508 case FIO_NET_CMD_START:
509 client->state = Client_started;
512 case FIO_NET_CMD_STOP:
513 client->state = Client_stopped;
517 log_err("fio: unknown client op: %d\n", cmd->opcode);
529 int fio_handle_clients(void)
531 struct fio_client *client;
532 struct flist_head *entry;
536 pfds = malloc(nr_clients * sizeof(struct pollfd));
538 while (!exit_backend && nr_clients) {
540 flist_for_each(entry, &client_list) {
541 client = flist_entry(entry, struct fio_client, list);
543 pfds[i].fd = client->fd;
544 pfds[i].events = POLLIN;
548 assert(i == nr_clients);
551 ret = poll(pfds, nr_clients, 100);
555 log_err("fio: poll clients: %s\n", strerror(errno));
561 for (i = 0; i < nr_clients; i++) {
562 if (!(pfds[i].revents & POLLIN))
565 client = find_client_by_fd(pfds[i].fd);
567 log_err("fio: unknown client\n");
570 handle_client(client, 0);