Commit | Line | Data |
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132159a5 JA |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <unistd.h> | |
4 | #include <limits.h> | |
5 | #include <errno.h> | |
6 | #include <fcntl.h> | |
7 | #include <sys/poll.h> | |
8 | #include <sys/types.h> | |
9 | #include <sys/stat.h> | |
10 | #include <sys/wait.h> | |
d05c4a03 | 11 | #include <sys/socket.h> |
132159a5 JA |
12 | #include <netinet/in.h> |
13 | #include <arpa/inet.h> | |
14 | #include <netdb.h> | |
9e22ecb0 | 15 | #include <signal.h> |
132159a5 JA |
16 | |
17 | #include "fio.h" | |
18 | #include "server.h" | |
19 | #include "crc/crc32.h" | |
b66570dc | 20 | #include "flist.h" |
132159a5 | 21 | |
b66570dc JA |
22 | struct fio_client { |
23 | struct flist_head list; | |
24 | struct sockaddr_in addr; | |
25 | char *hostname; | |
26 | int fd; | |
81179eec JA |
27 | |
28 | int state; | |
17dd1764 | 29 | int skip_newline; |
81179eec JA |
30 | |
31 | uint16_t argc; | |
32 | char **argv; | |
33 | }; | |
34 | ||
35 | enum { | |
5c2857f9 | 36 | Client_created = 0, |
81179eec JA |
37 | Client_connected = 1, |
38 | Client_started = 2, | |
39 | Client_stopped = 3, | |
5c2857f9 | 40 | Client_exited = 4, |
b66570dc JA |
41 | }; |
42 | ||
43 | static FLIST_HEAD(client_list); | |
b66570dc | 44 | |
0b8f30a5 JA |
45 | static int handle_client(struct fio_client *client, int one); |
46 | ||
b66570dc JA |
47 | static struct fio_client *find_client_by_fd(int fd) |
48 | { | |
49 | struct fio_client *client; | |
50 | struct flist_head *entry; | |
51 | ||
52 | flist_for_each(entry, &client_list) { | |
53 | client = flist_entry(entry, struct fio_client, list); | |
54 | ||
55 | if (client->fd == fd) | |
56 | return client; | |
57 | } | |
58 | ||
59 | return NULL; | |
60 | } | |
61 | ||
62 | static struct fio_client *find_client_by_name(const char *name) | |
63 | { | |
64 | struct fio_client *client; | |
65 | struct flist_head *entry; | |
66 | ||
67 | flist_for_each(entry, &client_list) { | |
68 | client = flist_entry(entry, struct fio_client, list); | |
69 | ||
70 | if (!strcmp(name, client->hostname)) | |
71 | return client; | |
72 | } | |
73 | ||
74 | return NULL; | |
75 | } | |
76 | ||
77 | static void remove_client(struct fio_client *client) | |
78 | { | |
39e8e016 | 79 | dprint(FD_NET, "client: removed <%s>\n", client->hostname); |
b66570dc JA |
80 | flist_del(&client->list); |
81 | nr_clients--; | |
81179eec | 82 | |
b66570dc | 83 | free(client->hostname); |
81179eec JA |
84 | if (client->argv) |
85 | free(client->argv); | |
86 | ||
b66570dc JA |
87 | free(client); |
88 | } | |
132159a5 | 89 | |
7a4b8240 JA |
90 | static int __fio_client_add_cmd_option(struct fio_client *client, |
91 | const char *opt) | |
81179eec | 92 | { |
39e8e016 JA |
93 | int index; |
94 | ||
7a4b8240 JA |
95 | if (client->argc == FIO_NET_CMD_JOBLINE_ARGV) { |
96 | log_err("fio: max cmd line number reached.\n"); | |
97 | log_err("fio: cmd line <%s> has been ignored.\n", opt); | |
98 | return 1; | |
99 | } | |
100 | ||
39e8e016 | 101 | index = client->argc++; |
81179eec | 102 | client->argv = realloc(client->argv, sizeof(char *) * client->argc); |
39e8e016 JA |
103 | client->argv[index] = strdup(opt); |
104 | dprint(FD_NET, "client: add cmd %d: %s\n", index, opt); | |
7a4b8240 | 105 | return 0; |
81179eec JA |
106 | } |
107 | ||
7a4b8240 | 108 | int fio_client_add_cmd_option(const char *hostname, const char *opt) |
81179eec JA |
109 | { |
110 | struct fio_client *client; | |
111 | ||
112 | if (!hostname || !opt) | |
7a4b8240 | 113 | return 0; |
81179eec JA |
114 | |
115 | client = find_client_by_name(hostname); | |
116 | if (!client) { | |
117 | log_err("fio: unknown client %s\n", hostname); | |
7a4b8240 | 118 | return 1; |
81179eec JA |
119 | } |
120 | ||
7a4b8240 | 121 | return __fio_client_add_cmd_option(client, opt); |
81179eec JA |
122 | } |
123 | ||
a37f69b7 | 124 | void fio_client_add(const char *hostname) |
132159a5 | 125 | { |
b66570dc | 126 | struct fio_client *client; |
132159a5 | 127 | |
39e8e016 | 128 | dprint(FD_NET, "client: added <%s>\n", hostname); |
b66570dc | 129 | client = malloc(sizeof(*client)); |
a37f69b7 | 130 | memset(client, 0, sizeof(*client)); |
81179eec | 131 | |
a37f69b7 JA |
132 | client->hostname = strdup(hostname); |
133 | client->fd = -1; | |
81179eec JA |
134 | |
135 | __fio_client_add_cmd_option(client, "fio"); | |
136 | ||
a37f69b7 JA |
137 | flist_add(&client->list, &client_list); |
138 | nr_clients++; | |
139 | } | |
140 | ||
141 | static int fio_client_connect(struct fio_client *client) | |
142 | { | |
143 | int fd; | |
132159a5 | 144 | |
39e8e016 | 145 | dprint(FD_NET, "client: connect to host %s\n", client->hostname); |
46c48f1f | 146 | |
b66570dc JA |
147 | memset(&client->addr, 0, sizeof(client->addr)); |
148 | client->addr.sin_family = AF_INET; | |
149 | client->addr.sin_port = htons(fio_net_port); | |
150 | ||
a37f69b7 | 151 | if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) { |
132159a5 JA |
152 | struct hostent *hent; |
153 | ||
a37f69b7 | 154 | hent = gethostbyname(client->hostname); |
132159a5 JA |
155 | if (!hent) { |
156 | log_err("fio: gethostbyname: %s\n", strerror(errno)); | |
157 | return 1; | |
158 | } | |
159 | ||
b66570dc | 160 | memcpy(&client->addr.sin_addr, hent->h_addr, 4); |
132159a5 JA |
161 | } |
162 | ||
163 | fd = socket(AF_INET, SOCK_STREAM, 0); | |
164 | if (fd < 0) { | |
165 | log_err("fio: socket: %s\n", strerror(errno)); | |
166 | return 1; | |
167 | } | |
168 | ||
b66570dc | 169 | if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) { |
132159a5 | 170 | log_err("fio: connect: %s\n", strerror(errno)); |
cdf54d85 | 171 | log_err("fio: failed to connect to %s\n", client->hostname); |
132159a5 JA |
172 | return 1; |
173 | } | |
174 | ||
b66570dc | 175 | client->fd = fd; |
81179eec | 176 | client->state = Client_connected; |
132159a5 JA |
177 | return 0; |
178 | } | |
179 | ||
cc0df00a JA |
180 | void fio_clients_terminate(void) |
181 | { | |
182 | struct flist_head *entry; | |
183 | struct fio_client *client; | |
184 | ||
60efd14e JA |
185 | dprint(FD_NET, "client: terminate clients\n"); |
186 | ||
cc0df00a JA |
187 | flist_for_each(entry, &client_list) { |
188 | client = flist_entry(entry, struct fio_client, list); | |
189 | ||
190 | fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0); | |
191 | } | |
192 | } | |
193 | ||
194 | static void sig_int(int sig) | |
195 | { | |
60efd14e | 196 | dprint(FD_NET, "client: got sign %d\n", sig); |
cc0df00a JA |
197 | fio_clients_terminate(); |
198 | } | |
199 | ||
200 | static void client_signal_handler(void) | |
201 | { | |
202 | struct sigaction act; | |
203 | ||
204 | memset(&act, 0, sizeof(act)); | |
205 | act.sa_handler = sig_int; | |
206 | act.sa_flags = SA_RESTART; | |
207 | sigaction(SIGINT, &act, NULL); | |
208 | ||
209 | memset(&act, 0, sizeof(act)); | |
210 | act.sa_handler = sig_int; | |
211 | act.sa_flags = SA_RESTART; | |
212 | sigaction(SIGTERM, &act, NULL); | |
213 | } | |
214 | ||
0b8f30a5 JA |
215 | static void probe_client(struct fio_client *client) |
216 | { | |
60efd14e JA |
217 | dprint(FD_NET, "client: send probe\n"); |
218 | ||
0b8f30a5 JA |
219 | fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0); |
220 | handle_client(client, 1); | |
221 | } | |
222 | ||
81179eec JA |
223 | static int send_client_cmd_line(struct fio_client *client) |
224 | { | |
225 | struct cmd_line_pdu *pdu; | |
226 | int i, ret; | |
227 | ||
39e8e016 | 228 | dprint(FD_NET, "client: send cmdline %d\n", client->argc); |
60efd14e | 229 | |
81179eec JA |
230 | pdu = malloc(sizeof(*pdu)); |
231 | for (i = 0; i < client->argc; i++) | |
232 | strcpy((char *) pdu->argv[i], client->argv[i]); | |
233 | ||
234 | pdu->argc = cpu_to_le16(client->argc); | |
235 | ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu)); | |
236 | free(pdu); | |
237 | return ret; | |
238 | } | |
239 | ||
a37f69b7 JA |
240 | int fio_clients_connect(void) |
241 | { | |
242 | struct fio_client *client; | |
243 | struct flist_head *entry, *tmp; | |
244 | int ret; | |
245 | ||
60efd14e JA |
246 | dprint(FD_NET, "client: connect all\n"); |
247 | ||
cc0df00a JA |
248 | client_signal_handler(); |
249 | ||
a37f69b7 JA |
250 | flist_for_each_safe(entry, tmp, &client_list) { |
251 | client = flist_entry(entry, struct fio_client, list); | |
252 | ||
253 | ret = fio_client_connect(client); | |
0b8f30a5 | 254 | if (ret) { |
a37f69b7 | 255 | remove_client(client); |
0b8f30a5 JA |
256 | continue; |
257 | } | |
258 | ||
259 | probe_client(client); | |
81179eec JA |
260 | |
261 | if (client->argc > 1) | |
262 | send_client_cmd_line(client); | |
a37f69b7 JA |
263 | } |
264 | ||
265 | return !nr_clients; | |
266 | } | |
267 | ||
132159a5 JA |
268 | /* |
269 | * Send file contents to server backend. We could use sendfile(), but to remain | |
270 | * more portable lets just read/write the darn thing. | |
271 | */ | |
a37f69b7 | 272 | static int fio_client_send_ini(struct fio_client *client, const char *filename) |
132159a5 JA |
273 | { |
274 | struct stat sb; | |
275 | char *p, *buf; | |
276 | off_t len; | |
277 | int fd, ret; | |
278 | ||
46c48f1f JA |
279 | dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname); |
280 | ||
132159a5 JA |
281 | fd = open(filename, O_RDONLY); |
282 | if (fd < 0) { | |
283 | log_err("fio: job file open: %s\n", strerror(errno)); | |
284 | return 1; | |
285 | } | |
286 | ||
287 | if (fstat(fd, &sb) < 0) { | |
288 | log_err("fio: job file stat: %s\n", strerror(errno)); | |
289 | return 1; | |
290 | } | |
291 | ||
292 | buf = malloc(sb.st_size); | |
293 | ||
294 | len = sb.st_size; | |
295 | p = buf; | |
296 | do { | |
297 | ret = read(fd, p, len); | |
298 | if (ret > 0) { | |
299 | len -= ret; | |
300 | if (!len) | |
301 | break; | |
302 | p += ret; | |
303 | continue; | |
304 | } else if (!ret) | |
305 | break; | |
306 | else if (errno == EAGAIN || errno == EINTR) | |
307 | continue; | |
308 | } while (1); | |
309 | ||
0b8f30a5 JA |
310 | if (len) { |
311 | log_err("fio: failed reading job file %s\n", filename); | |
312 | return 1; | |
313 | } | |
314 | ||
81179eec | 315 | ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size); |
132159a5 JA |
316 | free(buf); |
317 | return ret; | |
318 | } | |
37db14fe | 319 | |
a37f69b7 JA |
320 | int fio_clients_send_ini(const char *filename) |
321 | { | |
322 | struct fio_client *client; | |
323 | struct flist_head *entry, *tmp; | |
324 | ||
325 | flist_for_each_safe(entry, tmp, &client_list) { | |
326 | client = flist_entry(entry, struct fio_client, list); | |
327 | ||
328 | if (fio_client_send_ini(client, filename)) | |
329 | remove_client(client); | |
330 | } | |
331 | ||
332 | return !nr_clients; | |
333 | } | |
334 | ||
a64e88da JA |
335 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
336 | { | |
337 | dst->max_val = le64_to_cpu(src->max_val); | |
338 | dst->min_val = le64_to_cpu(src->min_val); | |
339 | dst->samples = le64_to_cpu(src->samples); | |
802ad4a8 JA |
340 | |
341 | /* | |
342 | * Floats arrive as IEEE 754 encoded uint64_t, convert back to double | |
343 | */ | |
344 | dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i)); | |
345 | dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i)); | |
a64e88da JA |
346 | } |
347 | ||
348 | static void convert_ts(struct thread_stat *dst, struct thread_stat *src) | |
349 | { | |
350 | int i, j; | |
351 | ||
352 | dst->error = le32_to_cpu(src->error); | |
353 | dst->groupid = le32_to_cpu(src->groupid); | |
354 | dst->pid = le32_to_cpu(src->pid); | |
355 | dst->members = le32_to_cpu(src->members); | |
356 | ||
357 | for (i = 0; i < 2; i++) { | |
358 | convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]); | |
359 | convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]); | |
360 | convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]); | |
361 | convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]); | |
362 | } | |
363 | ||
364 | dst->usr_time = le64_to_cpu(src->usr_time); | |
365 | dst->sys_time = le64_to_cpu(src->sys_time); | |
366 | dst->ctx = le64_to_cpu(src->ctx); | |
367 | dst->minf = le64_to_cpu(src->minf); | |
368 | dst->majf = le64_to_cpu(src->majf); | |
369 | dst->clat_percentiles = le64_to_cpu(src->clat_percentiles); | |
802ad4a8 JA |
370 | |
371 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
372 | fio_fp64_t *fps = &src->percentile_list[i]; | |
373 | fio_fp64_t *fpd = &dst->percentile_list[i]; | |
374 | ||
375 | fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i)); | |
376 | } | |
a64e88da JA |
377 | |
378 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
379 | dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]); | |
380 | dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]); | |
381 | dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]); | |
382 | } | |
383 | ||
384 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
385 | dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]); | |
386 | dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]); | |
387 | } | |
388 | ||
389 | for (i = 0; i < 2; i++) | |
390 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
391 | dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]); | |
392 | ||
393 | for (i = 0; i < 3; i++) { | |
394 | dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]); | |
93eee04a | 395 | dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]); |
a64e88da JA |
396 | } |
397 | ||
398 | dst->total_submit = le64_to_cpu(src->total_submit); | |
399 | dst->total_complete = le64_to_cpu(src->total_complete); | |
400 | ||
401 | for (i = 0; i < 2; i++) { | |
402 | dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]); | |
403 | dst->runtime[i] = le64_to_cpu(src->runtime[i]); | |
404 | } | |
405 | ||
406 | dst->total_run_time = le64_to_cpu(src->total_run_time); | |
407 | dst->continue_on_error = le16_to_cpu(src->continue_on_error); | |
408 | dst->total_err_count = le64_to_cpu(src->total_err_count); | |
ddcc0b69 JA |
409 | dst->first_error = le32_to_cpu(src->first_error); |
410 | dst->kb_base = le32_to_cpu(src->kb_base); | |
a64e88da JA |
411 | } |
412 | ||
413 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
414 | { | |
415 | int i; | |
416 | ||
417 | for (i = 0; i < 2; i++) { | |
418 | dst->max_run[i] = le64_to_cpu(src->max_run[i]); | |
419 | dst->min_run[i] = le64_to_cpu(src->min_run[i]); | |
420 | dst->max_bw[i] = le64_to_cpu(src->max_bw[i]); | |
421 | dst->min_bw[i] = le64_to_cpu(src->min_bw[i]); | |
422 | dst->io_kb[i] = le64_to_cpu(src->io_kb[i]); | |
423 | dst->agg[i] = le64_to_cpu(src->agg[i]); | |
424 | } | |
425 | ||
426 | dst->kb_base = le32_to_cpu(src->kb_base); | |
427 | dst->groupid = le32_to_cpu(src->groupid); | |
428 | } | |
429 | ||
430 | static void handle_ts(struct fio_net_cmd *cmd) | |
431 | { | |
432 | struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload; | |
433 | ||
434 | convert_ts(&p->ts, &p->ts); | |
435 | convert_gs(&p->rs, &p->rs); | |
436 | ||
437 | show_thread_status(&p->ts, &p->rs); | |
438 | } | |
439 | ||
440 | static void handle_gs(struct fio_net_cmd *cmd) | |
441 | { | |
442 | struct group_run_stats *gs = (struct group_run_stats *) cmd->payload; | |
443 | ||
444 | convert_gs(gs, gs); | |
445 | show_group_stats(gs); | |
446 | } | |
447 | ||
cf451d1e JA |
448 | static void handle_eta(struct fio_net_cmd *cmd) |
449 | { | |
450 | struct jobs_eta *je = (struct jobs_eta *) cmd->payload; | |
451 | int i; | |
452 | ||
453 | je->nr_running = le32_to_cpu(je->nr_running); | |
454 | je->nr_ramp = le32_to_cpu(je->nr_ramp); | |
455 | je->nr_pending = le32_to_cpu(je->nr_pending); | |
456 | je->files_open = le32_to_cpu(je->files_open); | |
457 | je->m_rate = le32_to_cpu(je->m_rate); | |
458 | je->t_rate = le32_to_cpu(je->t_rate); | |
459 | je->m_iops = le32_to_cpu(je->m_iops); | |
460 | je->t_iops = le32_to_cpu(je->t_iops); | |
461 | ||
462 | for (i = 0; i < 2; i++) { | |
463 | je->rate[i] = le32_to_cpu(je->rate[i]); | |
464 | je->iops[i] = le32_to_cpu(je->iops[i]); | |
465 | } | |
466 | ||
467 | je->elapsed_sec = le32_to_cpu(je->nr_running); | |
468 | je->eta_sec = le64_to_cpu(je->eta_sec); | |
469 | ||
470 | display_thread_status(je); | |
471 | } | |
472 | ||
2e03b4b2 JA |
473 | static void handle_probe(struct fio_net_cmd *cmd) |
474 | { | |
475 | struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload; | |
476 | ||
6eb24791 JA |
477 | log_info("Probe: hostname=%s, be=%u, fio ver %u.%u.%u\n", |
478 | probe->hostname, probe->bigendian, probe->fio_major, | |
479 | probe->fio_minor, probe->fio_patch); | |
2e03b4b2 JA |
480 | } |
481 | ||
0b8f30a5 | 482 | static int handle_client(struct fio_client *client, int one) |
37db14fe JA |
483 | { |
484 | struct fio_net_cmd *cmd; | |
c2c94585 | 485 | int done = 0, did_cmd = 0; |
37db14fe | 486 | |
60efd14e JA |
487 | dprint(FD_NET, "client: handle %s\n", client->hostname); |
488 | ||
70e0c316 | 489 | while ((cmd = fio_net_recv_cmd(client->fd, 1)) != NULL) { |
c2c94585 JA |
490 | did_cmd++; |
491 | ||
492 | dprint(FD_NET, "client: got cmd op %d from %s\n", | |
493 | cmd->opcode, client->hostname); | |
46c48f1f | 494 | |
a64e88da | 495 | switch (cmd->opcode) { |
a64e88da | 496 | case FIO_NET_CMD_QUIT: |
b66570dc | 497 | remove_client(client); |
437377e1 | 498 | free(cmd); |
a450e492 | 499 | done = 1; |
437377e1 | 500 | break; |
17dd1764 JA |
501 | case FIO_NET_CMD_TEXT: { |
502 | const char *buf = (const char *) cmd->payload; | |
1f39e555 | 503 | int fio_unused ret; |
17dd1764 JA |
504 | |
505 | if (!client->skip_newline) | |
9a7e10b9 | 506 | fprintf(f_out, "<%s> ", client->hostname); |
1f39e555 | 507 | ret = fwrite(buf, cmd->pdu_len, 1, f_out); |
0b8f30a5 | 508 | fflush(f_out); |
17dd1764 | 509 | client->skip_newline = strchr(buf, '\n') == NULL; |
37db14fe | 510 | free(cmd); |
a64e88da | 511 | break; |
17dd1764 | 512 | } |
a64e88da JA |
513 | case FIO_NET_CMD_TS: |
514 | handle_ts(cmd); | |
515 | free(cmd); | |
516 | break; | |
517 | case FIO_NET_CMD_GS: | |
518 | handle_gs(cmd); | |
519 | free(cmd); | |
520 | break; | |
cf451d1e JA |
521 | case FIO_NET_CMD_ETA: |
522 | handle_eta(cmd); | |
523 | free(cmd); | |
524 | break; | |
2e03b4b2 JA |
525 | case FIO_NET_CMD_PROBE: |
526 | handle_probe(cmd); | |
527 | free(cmd); | |
528 | break; | |
81179eec JA |
529 | case FIO_NET_CMD_START: |
530 | client->state = Client_started; | |
531 | free(cmd); | |
532 | break; | |
533 | case FIO_NET_CMD_STOP: | |
534 | client->state = Client_stopped; | |
535 | free(cmd); | |
536 | break; | |
a64e88da JA |
537 | default: |
538 | log_err("fio: unknown client op: %d\n", cmd->opcode); | |
539 | free(cmd); | |
540 | break; | |
37db14fe | 541 | } |
a450e492 | 542 | |
0b8f30a5 | 543 | if (done || one) |
a450e492 | 544 | break; |
37db14fe JA |
545 | } |
546 | ||
c2c94585 | 547 | return did_cmd; |
37db14fe | 548 | } |
b66570dc JA |
549 | |
550 | int fio_handle_clients(void) | |
551 | { | |
552 | struct fio_client *client; | |
553 | struct flist_head *entry; | |
554 | struct pollfd *pfds; | |
82a4be1b | 555 | int i, ret = 0; |
b66570dc JA |
556 | |
557 | pfds = malloc(nr_clients * sizeof(struct pollfd)); | |
558 | ||
82a4be1b JA |
559 | while (!exit_backend && nr_clients) { |
560 | i = 0; | |
561 | flist_for_each(entry, &client_list) { | |
562 | client = flist_entry(entry, struct fio_client, list); | |
b66570dc | 563 | |
82a4be1b JA |
564 | pfds[i].fd = client->fd; |
565 | pfds[i].events = POLLIN; | |
566 | i++; | |
567 | } | |
568 | ||
569 | assert(i == nr_clients); | |
b66570dc | 570 | |
5c2857f9 JA |
571 | do { |
572 | ret = poll(pfds, nr_clients, 100); | |
573 | if (ret < 0) { | |
574 | if (errno == EINTR) | |
575 | continue; | |
576 | log_err("fio: poll clients: %s\n", strerror(errno)); | |
577 | break; | |
578 | } else if (!ret) | |
b66570dc | 579 | continue; |
5c2857f9 | 580 | } while (ret <= 0); |
b66570dc JA |
581 | |
582 | for (i = 0; i < nr_clients; i++) { | |
583 | if (!(pfds[i].revents & POLLIN)) | |
584 | continue; | |
585 | ||
586 | client = find_client_by_fd(pfds[i].fd); | |
587 | if (!client) { | |
588 | log_err("fio: unknown client\n"); | |
589 | continue; | |
590 | } | |
0b8f30a5 | 591 | handle_client(client, 0); |
b66570dc JA |
592 | } |
593 | } | |
594 | ||
595 | free(pfds); | |
b66570dc JA |
596 | return 0; |
597 | } |