Commit | Line | Data |
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50d16976 JA |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
142575e6 | 3 | #include <stdarg.h> |
50d16976 JA |
4 | #include <unistd.h> |
5 | #include <limits.h> | |
50d16976 JA |
6 | #include <errno.h> |
7 | #include <fcntl.h> | |
8 | #include <sys/poll.h> | |
50d16976 JA |
9 | #include <sys/types.h> |
10 | #include <sys/wait.h> | |
d05c4a03 | 11 | #include <sys/socket.h> |
87aa8f19 JA |
12 | #include <sys/stat.h> |
13 | #include <sys/un.h> | |
50d16976 JA |
14 | #include <netinet/in.h> |
15 | #include <arpa/inet.h> | |
16 | #include <netdb.h> | |
e46d8091 | 17 | #include <syslog.h> |
9e22ecb0 | 18 | #include <signal.h> |
50d16976 JA |
19 | |
20 | #include "fio.h" | |
132159a5 | 21 | #include "server.h" |
fcee5ff6 | 22 | #include "crc/crc16.h" |
c7c6cb4c | 23 | #include "lib/ieee754.h" |
89cf1480 JA |
24 | |
25 | #include "fio_version.h" | |
50d16976 | 26 | |
132159a5 | 27 | int fio_net_port = 8765; |
50d16976 | 28 | |
009b1be4 JA |
29 | int exit_backend = 0; |
30 | ||
46c48f1f | 31 | static int server_fd = -1; |
87aa8f19 JA |
32 | static char *fio_server_arg; |
33 | static char *bind_sock; | |
34 | static struct sockaddr_in saddr_in; | |
37db14fe | 35 | |
89c1707c JA |
36 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
37 | "", | |
38 | "QUIT", | |
39 | "EXIT", | |
40 | "JOB", | |
41 | "JOBLINE", | |
42 | "TEXT", | |
43 | "TS", | |
44 | "GS", | |
45 | "SEND_ETA", | |
46 | "ETA", | |
47 | "PROBE", | |
48 | "START", | |
d09a64a0 JA |
49 | "STOP", |
50 | "DISK_UTIL", | |
89c1707c JA |
51 | }; |
52 | ||
53 | const char *fio_server_op(unsigned int op) | |
54 | { | |
55 | static char buf[32]; | |
56 | ||
57 | if (op < FIO_NET_CMD_NR) | |
58 | return fio_server_ops[op]; | |
59 | ||
60 | sprintf(buf, "UNKNOWN/%d", op); | |
61 | return buf; | |
62 | } | |
63 | ||
132159a5 JA |
64 | int fio_send_data(int sk, const void *p, unsigned int len) |
65 | { | |
794d69ca JA |
66 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
67 | ||
132159a5 JA |
68 | do { |
69 | int ret = send(sk, p, len, 0); | |
70 | ||
71 | if (ret > 0) { | |
72 | len -= ret; | |
73 | if (!len) | |
74 | break; | |
75 | p += ret; | |
76 | continue; | |
77 | } else if (!ret) | |
78 | break; | |
79 | else if (errno == EAGAIN || errno == EINTR) | |
80 | continue; | |
7b821684 JA |
81 | else |
82 | break; | |
132159a5 JA |
83 | } while (!exit_backend); |
84 | ||
85 | if (!len) | |
86 | return 0; | |
87 | ||
88 | return 1; | |
89 | } | |
90 | ||
91 | int fio_recv_data(int sk, void *p, unsigned int len) | |
92 | { | |
93 | do { | |
94 | int ret = recv(sk, p, len, MSG_WAITALL); | |
95 | ||
96 | if (ret > 0) { | |
97 | len -= ret; | |
98 | if (!len) | |
99 | break; | |
100 | p += ret; | |
101 | continue; | |
102 | } else if (!ret) | |
103 | break; | |
104 | else if (errno == EAGAIN || errno == EINTR) | |
105 | continue; | |
7b821684 JA |
106 | else |
107 | break; | |
132159a5 JA |
108 | } while (!exit_backend); |
109 | ||
110 | if (!len) | |
111 | return 0; | |
112 | ||
113 | return -1; | |
114 | } | |
115 | ||
116 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
117 | { | |
fcee5ff6 | 118 | uint16_t crc; |
132159a5 | 119 | |
fcee5ff6 JA |
120 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
121 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 122 | |
fcee5ff6 JA |
123 | crc = crc16(cmd, FIO_NET_CMD_CRC_SZ); |
124 | if (crc != cmd->cmd_crc16) { | |
132159a5 | 125 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 126 | cmd->cmd_crc16, crc); |
132159a5 JA |
127 | return 1; |
128 | } | |
129 | ||
130 | cmd->version = le16_to_cpu(cmd->version); | |
131 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
132 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 133 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
134 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
135 | ||
136 | switch (cmd->version) { | |
fa2ea806 | 137 | case FIO_SERVER_VER: |
132159a5 JA |
138 | break; |
139 | default: | |
140 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
141 | return 1; | |
142 | } | |
143 | ||
144 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { | |
145 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); | |
146 | return 1; | |
147 | } | |
148 | ||
149 | return 0; | |
150 | } | |
151 | ||
a64e88da JA |
152 | /* |
153 | * Read (and defragment, if necessary) incoming commands | |
154 | */ | |
e951bdc4 | 155 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 156 | { |
a64e88da JA |
157 | struct fio_net_cmd cmd, *cmdret = NULL; |
158 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 159 | uint16_t crc; |
a64e88da JA |
160 | int ret, first = 1; |
161 | void *pdu = NULL; | |
132159a5 | 162 | |
a64e88da JA |
163 | do { |
164 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
165 | if (ret) | |
166 | break; | |
132159a5 | 167 | |
a64e88da JA |
168 | /* We have a command, verify it and swap if need be */ |
169 | ret = verify_convert_cmd(&cmd); | |
170 | if (ret) | |
171 | break; | |
132159a5 | 172 | |
0b8f30a5 JA |
173 | if (first) { |
174 | /* if this is text, add room for \0 at the end */ | |
175 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
176 | assert(!cmdret); | |
177 | } else | |
a64e88da | 178 | cmd_size += cmd.pdu_len; |
132159a5 | 179 | |
a64e88da | 180 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 181 | |
a64e88da JA |
182 | if (first) |
183 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
184 | else | |
185 | assert(cmdret->opcode == cmd.opcode); | |
186 | ||
187 | if (!cmd.pdu_len) | |
188 | break; | |
189 | ||
190 | /* There's payload, get it */ | |
191 | pdu = (void *) cmdret->payload + pdu_offset; | |
192 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
193 | if (ret) | |
194 | break; | |
195 | ||
196 | /* Verify payload crc */ | |
197 | crc = crc16(pdu, cmd.pdu_len); | |
198 | if (crc != cmd.pdu_crc16) { | |
199 | log_err("fio: server bad crc on payload "); | |
200 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
201 | ret = 1; | |
202 | break; | |
203 | } | |
204 | ||
205 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
206 | if (!first) |
207 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
208 | first = 0; |
209 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 210 | |
a64e88da JA |
211 | if (ret) { |
212 | free(cmdret); | |
213 | cmdret = NULL; | |
0b8f30a5 JA |
214 | } else if (cmdret) { |
215 | /* zero-terminate text input */ | |
216 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || | |
217 | cmdret->opcode == FIO_NET_CMD_JOB)) { | |
218 | char *buf = (char *) cmdret->payload; | |
219 | ||
220 | buf[cmdret->pdu_len ] = '\0'; | |
221 | } | |
222 | /* frag flag is internal */ | |
a64e88da | 223 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 224 | } |
a64e88da JA |
225 | |
226 | return cmdret; | |
132159a5 JA |
227 | } |
228 | ||
229 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
230 | { | |
231 | uint32_t pdu_len; | |
232 | ||
ddcc0b69 | 233 | cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
234 | |
235 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
236 | if (pdu_len) | |
ddcc0b69 | 237 | cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len)); |
132159a5 JA |
238 | } |
239 | ||
af9c9fb3 JA |
240 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
241 | uint64_t tag) | |
794d69ca | 242 | { |
7f868316 JA |
243 | struct fio_net_cmd *cmd = NULL; |
244 | size_t this_len, cur_len = 0; | |
794d69ca JA |
245 | int ret; |
246 | ||
247 | do { | |
248 | this_len = size; | |
249 | if (this_len > FIO_SERVER_MAX_PDU) | |
250 | this_len = FIO_SERVER_MAX_PDU; | |
251 | ||
7f868316 JA |
252 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
253 | if (cmd) | |
254 | free(cmd); | |
255 | ||
256 | cur_len = sizeof(*cmd) + this_len; | |
257 | cmd = malloc(cur_len); | |
258 | } | |
794d69ca | 259 | |
af9c9fb3 | 260 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
261 | |
262 | if (this_len < size) | |
ddcc0b69 | 263 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
264 | |
265 | fio_net_cmd_crc(cmd); | |
266 | ||
267 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
268 | size -= this_len; |
269 | buf += this_len; | |
270 | } while (!ret && size); | |
271 | ||
7f868316 JA |
272 | if (cmd) |
273 | free(cmd); | |
274 | ||
794d69ca JA |
275 | return ret; |
276 | } | |
277 | ||
89c1707c | 278 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 279 | { |
178cde9f | 280 | struct fio_net_cmd cmd; |
132159a5 | 281 | |
af9c9fb3 | 282 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
283 | fio_net_cmd_crc(&cmd); |
284 | ||
285 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
286 | } | |
287 | ||
89c1707c JA |
288 | /* |
289 | * If 'list' is non-NULL, then allocate and store the sent command for | |
290 | * later verification. | |
291 | */ | |
292 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
293 | struct flist_head *list) | |
294 | { | |
295 | struct fio_net_int_cmd *cmd; | |
296 | int ret; | |
297 | ||
298 | if (!list) | |
299 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
300 | ||
301 | cmd = malloc(sizeof(*cmd)); | |
302 | ||
df380934 | 303 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
304 | fio_net_cmd_crc(&cmd->cmd); |
305 | ||
306 | INIT_FLIST_HEAD(&cmd->list); | |
307 | gettimeofday(&cmd->tv, NULL); | |
308 | cmd->saved_tag = tag; | |
309 | ||
310 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
311 | if (ret) { | |
312 | free(cmd); | |
313 | return ret; | |
314 | } | |
315 | ||
316 | flist_add_tail(&cmd->list, list); | |
317 | return 0; | |
318 | } | |
319 | ||
9abea48b | 320 | static int fio_server_send_quit_cmd(void) |
437377e1 | 321 | { |
46c48f1f | 322 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 323 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
324 | } |
325 | ||
0b8f30a5 | 326 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
132159a5 | 327 | { |
0b8f30a5 | 328 | char *buf = (char *) cmd->payload; |
a64e88da | 329 | int ret; |
132159a5 | 330 | |
e6d1c668 JA |
331 | if (parse_jobs_ini(buf, 1, 0)) { |
332 | fio_server_send_quit_cmd(); | |
81179eec | 333 | return -1; |
e6d1c668 | 334 | } |
81179eec | 335 | |
89c1707c | 336 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec JA |
337 | |
338 | ret = exec_run(); | |
9abea48b | 339 | fio_server_send_quit_cmd(); |
81179eec JA |
340 | reset_fio_state(); |
341 | return ret; | |
342 | } | |
343 | ||
344 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) | |
345 | { | |
fa2ea806 JA |
346 | void *pdu = cmd->payload; |
347 | struct cmd_single_line_pdu *cslp; | |
348 | struct cmd_line_pdu *clp; | |
349 | unsigned long offset; | |
350 | char **argv; | |
81179eec JA |
351 | int ret, i; |
352 | ||
fa2ea806 JA |
353 | clp = pdu; |
354 | clp->lines = le16_to_cpu(clp->lines); | |
355 | argv = malloc(clp->lines * sizeof(char *)); | |
356 | offset = sizeof(*clp); | |
81179eec | 357 | |
fa2ea806 | 358 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 359 | |
fa2ea806 JA |
360 | for (i = 0; i < clp->lines; i++) { |
361 | cslp = pdu + offset; | |
362 | argv[i] = (char *) cslp->text; | |
363 | ||
364 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
365 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
366 | } | |
81179eec | 367 | |
fa2ea806 | 368 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 369 | fio_server_send_quit_cmd(); |
fa2ea806 | 370 | free(argv); |
81179eec | 371 | return -1; |
e6d1c668 | 372 | } |
81179eec | 373 | |
fa2ea806 JA |
374 | free(argv); |
375 | ||
89c1707c | 376 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec | 377 | |
794d69ca | 378 | ret = exec_run(); |
9abea48b | 379 | fio_server_send_quit_cmd(); |
794d69ca | 380 | reset_fio_state(); |
132159a5 JA |
381 | return ret; |
382 | } | |
383 | ||
c28e8e8c JA |
384 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
385 | { | |
386 | struct cmd_probe_pdu probe; | |
387 | ||
89c1707c JA |
388 | dprint(FD_NET, "server: sending probe reply\n"); |
389 | ||
c28e8e8c JA |
390 | memset(&probe, 0, sizeof(probe)); |
391 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
392 | #ifdef FIO_BIG_ENDIAN |
393 | probe.bigendian = 1; | |
394 | #endif | |
81179eec JA |
395 | probe.fio_major = FIO_MAJOR; |
396 | probe.fio_minor = FIO_MINOR; | |
397 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 398 | |
cca84643 JA |
399 | probe.os = FIO_OS; |
400 | probe.arch = FIO_ARCH; | |
401 | ||
38fdef22 JA |
402 | probe.bpp = sizeof(void *); |
403 | ||
89c1707c | 404 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
405 | } |
406 | ||
407 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
408 | { | |
409 | struct jobs_eta *je; | |
410 | size_t size; | |
af9c9fb3 JA |
411 | int i; |
412 | ||
b814fb26 JA |
413 | if (!thread_number) |
414 | return 0; | |
415 | ||
416 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
417 | je = malloc(size); |
418 | memset(je, 0, size); | |
af9c9fb3 JA |
419 | |
420 | if (!calc_thread_status(je, 1)) { | |
421 | free(je); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | dprint(FD_NET, "server sending status\n"); | |
426 | ||
427 | je->nr_running = cpu_to_le32(je->nr_running); | |
428 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
429 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
430 | je->files_open = cpu_to_le32(je->files_open); | |
431 | je->m_rate = cpu_to_le32(je->m_rate); | |
432 | je->t_rate = cpu_to_le32(je->t_rate); | |
433 | je->m_iops = cpu_to_le32(je->m_iops); | |
434 | je->t_iops = cpu_to_le32(je->t_iops); | |
435 | ||
436 | for (i = 0; i < 2; i++) { | |
437 | je->rate[i] = cpu_to_le32(je->rate[i]); | |
438 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
439 | } | |
440 | ||
441 | je->elapsed_sec = cpu_to_le32(je->nr_running); | |
442 | je->eta_sec = cpu_to_le64(je->eta_sec); | |
443 | ||
7f868316 | 444 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
445 | free(je); |
446 | return 0; | |
c28e8e8c JA |
447 | } |
448 | ||
132159a5 JA |
449 | static int handle_command(struct fio_net_cmd *cmd) |
450 | { | |
451 | int ret; | |
452 | ||
89c1707c JA |
453 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
454 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 455 | |
132159a5 JA |
456 | switch (cmd->opcode) { |
457 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 458 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 459 | return -1; |
d7959186 | 460 | case FIO_NET_CMD_EXIT: |
132159a5 | 461 | exit_backend = 1; |
c28e8e8c | 462 | return -1; |
132159a5 | 463 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 464 | ret = handle_job_cmd(cmd); |
132159a5 | 465 | break; |
81179eec JA |
466 | case FIO_NET_CMD_JOBLINE: |
467 | ret = handle_jobline_cmd(cmd); | |
468 | break; | |
c28e8e8c JA |
469 | case FIO_NET_CMD_PROBE: |
470 | ret = handle_probe_cmd(cmd); | |
471 | break; | |
af9c9fb3 JA |
472 | case FIO_NET_CMD_SEND_ETA: |
473 | ret = handle_send_eta_cmd(cmd); | |
474 | break; | |
132159a5 | 475 | default: |
89c1707c | 476 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
477 | ret = 1; |
478 | } | |
479 | ||
480 | return ret; | |
481 | } | |
482 | ||
70e0c316 | 483 | static int handle_connection(int sk, int block) |
132159a5 JA |
484 | { |
485 | struct fio_net_cmd *cmd = NULL; | |
486 | int ret = 0; | |
487 | ||
488 | /* read forever */ | |
489 | while (!exit_backend) { | |
e951bdc4 JA |
490 | struct pollfd pfd = { |
491 | .fd = sk, | |
492 | .events = POLLIN, | |
493 | }; | |
494 | ||
495 | ret = 0; | |
496 | do { | |
497 | ret = poll(&pfd, 1, 100); | |
498 | if (ret < 0) { | |
499 | if (errno == EINTR) | |
500 | break; | |
501 | log_err("fio: poll: %s\n", strerror(errno)); | |
502 | break; | |
19c65179 JA |
503 | } else if (!ret) { |
504 | if (!block) | |
505 | return 0; | |
e951bdc4 | 506 | continue; |
19c65179 | 507 | } |
e951bdc4 JA |
508 | |
509 | if (pfd.revents & POLLIN) | |
510 | break; | |
511 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
512 | ret = 1; | |
513 | break; | |
514 | } | |
19c65179 | 515 | } while (!exit_backend); |
e951bdc4 JA |
516 | |
517 | if (ret < 0) | |
518 | break; | |
519 | ||
520 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 521 | if (!cmd) { |
c28e8e8c | 522 | ret = -1; |
132159a5 JA |
523 | break; |
524 | } | |
525 | ||
132159a5 JA |
526 | ret = handle_command(cmd); |
527 | if (ret) | |
528 | break; | |
529 | ||
530 | free(cmd); | |
c77a99e7 | 531 | cmd = NULL; |
132159a5 JA |
532 | } |
533 | ||
534 | if (cmd) | |
535 | free(cmd); | |
536 | ||
537 | return ret; | |
538 | } | |
539 | ||
cc0df00a JA |
540 | void fio_server_idle_loop(void) |
541 | { | |
542 | if (server_fd != -1) | |
70e0c316 | 543 | handle_connection(server_fd, 0); |
cc0df00a JA |
544 | } |
545 | ||
50d16976 JA |
546 | static int accept_loop(int listen_sk) |
547 | { | |
bb447a27 | 548 | struct sockaddr_in addr; |
5ba13ea6 | 549 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 550 | struct pollfd pfd; |
132159a5 | 551 | int ret, sk, flags, exitval = 0; |
50d16976 | 552 | |
60efd14e JA |
553 | dprint(FD_NET, "server enter accept loop\n"); |
554 | ||
009b1be4 JA |
555 | flags = fcntl(listen_sk, F_GETFL); |
556 | flags |= O_NONBLOCK; | |
557 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 558 | again: |
009b1be4 JA |
559 | pfd.fd = listen_sk; |
560 | pfd.events = POLLIN; | |
561 | do { | |
562 | ret = poll(&pfd, 1, 100); | |
563 | if (ret < 0) { | |
564 | if (errno == EINTR) | |
565 | break; | |
fcee5ff6 | 566 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
567 | goto out; |
568 | } else if (!ret) | |
569 | continue; | |
570 | ||
571 | if (pfd.revents & POLLIN) | |
572 | break; | |
573 | } while (!exit_backend); | |
574 | ||
575 | if (exit_backend) | |
576 | goto out; | |
577 | ||
6b976bfc | 578 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 579 | if (sk < 0) { |
690e09ae | 580 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
581 | return -1; |
582 | } | |
583 | ||
bb447a27 | 584 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 585 | |
37db14fe JA |
586 | server_fd = sk; |
587 | ||
70e0c316 | 588 | exitval = handle_connection(sk, 1); |
50d16976 | 589 | |
37db14fe | 590 | server_fd = -1; |
50d16976 | 591 | close(sk); |
5c341e9a | 592 | |
009b1be4 | 593 | if (!exit_backend) |
5c341e9a JA |
594 | goto again; |
595 | ||
009b1be4 | 596 | out: |
132159a5 | 597 | return exitval; |
50d16976 JA |
598 | } |
599 | ||
13755d94 | 600 | int fio_server_text_output(const char *buf, size_t len) |
37db14fe | 601 | { |
337d75a8 | 602 | if (server_fd != -1) |
af9c9fb3 | 603 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len, 0); |
337d75a8 | 604 | |
13755d94 | 605 | return log_local_buf(buf, len); |
142575e6 JA |
606 | } |
607 | ||
a64e88da JA |
608 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
609 | { | |
610 | dst->max_val = cpu_to_le64(src->max_val); | |
611 | dst->min_val = cpu_to_le64(src->min_val); | |
612 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
613 | |
614 | /* | |
615 | * Encode to IEEE 754 for network transfer | |
616 | */ | |
617 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
618 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
619 | } |
620 | ||
621 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
622 | { | |
623 | int i; | |
624 | ||
625 | for (i = 0; i < 2; i++) { | |
626 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
627 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
628 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
629 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
630 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
631 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
632 | } | |
633 | ||
634 | dst->kb_base = cpu_to_le32(src->kb_base); | |
635 | dst->groupid = cpu_to_le32(src->groupid); | |
636 | } | |
637 | ||
638 | /* | |
639 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
640 | * into a single payload. | |
641 | */ | |
642 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
643 | { | |
644 | struct cmd_ts_pdu p; | |
645 | int i, j; | |
646 | ||
60efd14e JA |
647 | dprint(FD_NET, "server sending end stats\n"); |
648 | ||
317b3c8b JA |
649 | memset(&p, 0, sizeof(p)); |
650 | ||
a64e88da JA |
651 | strcpy(p.ts.name, ts->name); |
652 | strcpy(p.ts.verror, ts->verror); | |
653 | strcpy(p.ts.description, ts->description); | |
654 | ||
ddcc0b69 | 655 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 656 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 657 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
658 | p.ts.members = cpu_to_le32(ts->members); |
659 | ||
660 | for (i = 0; i < 2; i++) { | |
661 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
662 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
663 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
664 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
665 | } | |
666 | ||
667 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
668 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
669 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
670 | p.ts.minf = cpu_to_le64(ts->minf); | |
671 | p.ts.majf = cpu_to_le64(ts->majf); | |
672 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
673 | |
674 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
675 | fio_fp64_t *src = &ts->percentile_list[i]; |
676 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 677 | |
cfc03e46 | 678 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 679 | } |
a64e88da JA |
680 | |
681 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
682 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
683 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
684 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
685 | } | |
686 | ||
687 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
688 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
689 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
690 | } | |
691 | ||
692 | for (i = 0; i < 2; i++) | |
693 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
694 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
695 | ||
696 | for (i = 0; i < 3; i++) { | |
697 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 698 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
699 | } |
700 | ||
93eee04a | 701 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
702 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
703 | ||
704 | for (i = 0; i < 2; i++) { | |
705 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
706 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
707 | } | |
708 | ||
709 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
710 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
711 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
712 | p.ts.first_error = cpu_to_le32(ts->first_error); |
713 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
714 | |
715 | convert_gs(&p.rs, rs); | |
716 | ||
af9c9fb3 | 717 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
718 | } |
719 | ||
720 | void fio_server_send_gs(struct group_run_stats *rs) | |
721 | { | |
722 | struct group_run_stats gs; | |
723 | ||
60efd14e JA |
724 | dprint(FD_NET, "server sending group run stats\n"); |
725 | ||
a64e88da | 726 | convert_gs(&gs, rs); |
af9c9fb3 | 727 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
728 | } |
729 | ||
d09a64a0 JA |
730 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
731 | { | |
732 | int i; | |
733 | ||
734 | for (i = 0; i < 2; i++) { | |
735 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
736 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
737 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
738 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
739 | } | |
740 | ||
741 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
742 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
743 | dst->slavecount = cpu_to_le32(src->slavecount); | |
744 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
745 | } | |
746 | ||
747 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
748 | { | |
749 | int i; | |
750 | ||
751 | strcpy((char *) dst->name, (char *) src->name); | |
752 | ||
753 | for (i = 0; i < 2; i++) { | |
754 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
755 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
756 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
757 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
758 | } | |
759 | ||
760 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
761 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
762 | dst->msec = cpu_to_le64(src->msec); | |
763 | } | |
764 | ||
765 | void fio_server_send_du(void) | |
766 | { | |
767 | struct disk_util *du; | |
768 | struct flist_head *entry; | |
769 | struct cmd_du_pdu pdu; | |
770 | ||
771 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
772 | ||
0766d92e JA |
773 | memset(&pdu, 0, sizeof(pdu)); |
774 | ||
d09a64a0 JA |
775 | flist_for_each(entry, &disk_list) { |
776 | du = flist_entry(entry, struct disk_util, list); | |
777 | ||
778 | convert_dus(&pdu.dus, &du->dus); | |
779 | convert_agg(&pdu.agg, &du->agg); | |
780 | ||
781 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
782 | } | |
783 | } | |
784 | ||
142575e6 JA |
785 | int fio_server_log(const char *format, ...) |
786 | { | |
787 | char buffer[1024]; | |
788 | va_list args; | |
82fa6b21 | 789 | size_t len; |
142575e6 | 790 | |
60efd14e JA |
791 | dprint(FD_NET, "server log\n"); |
792 | ||
142575e6 | 793 | va_start(args, format); |
82fa6b21 | 794 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
142575e6 JA |
795 | va_end(args); |
796 | ||
82fa6b21 | 797 | return fio_server_text_output(buffer, len); |
37db14fe | 798 | } |
e46d8091 | 799 | |
87aa8f19 | 800 | static int fio_init_server_ip(void) |
81179eec | 801 | { |
87aa8f19 | 802 | int sk, opt; |
81179eec JA |
803 | |
804 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
805 | if (sk < 0) { | |
806 | log_err("fio: socket: %s\n", strerror(errno)); | |
807 | return -1; | |
808 | } | |
809 | ||
810 | opt = 1; | |
811 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
812 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 813 | close(sk); |
81179eec JA |
814 | return -1; |
815 | } | |
816 | #ifdef SO_REUSEPORT | |
6eb24791 | 817 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 818 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 819 | close(sk); |
81179eec JA |
820 | return -1; |
821 | } | |
822 | #endif | |
823 | ||
824 | saddr_in.sin_family = AF_INET; | |
81179eec JA |
825 | |
826 | if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) { | |
827 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 828 | close(sk); |
81179eec JA |
829 | return -1; |
830 | } | |
831 | ||
87aa8f19 JA |
832 | return sk; |
833 | } | |
834 | ||
835 | static int fio_init_server_sock(void) | |
836 | { | |
837 | struct sockaddr_un addr; | |
838 | fio_socklen_t len; | |
839 | mode_t mode; | |
840 | int sk; | |
841 | ||
842 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
843 | if (sk < 0) { | |
844 | log_err("fio: socket: %s\n", strerror(errno)); | |
845 | return -1; | |
846 | } | |
847 | ||
848 | mode = umask(000); | |
849 | ||
850 | memset(&addr, 0, sizeof(addr)); | |
851 | addr.sun_family = AF_UNIX; | |
852 | strcpy(addr.sun_path, bind_sock); | |
853 | unlink(bind_sock); | |
854 | ||
855 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
856 | ||
857 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
858 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 859 | close(sk); |
87aa8f19 JA |
860 | return -1; |
861 | } | |
862 | ||
863 | umask(mode); | |
864 | return sk; | |
865 | } | |
866 | ||
867 | static int fio_init_server_connection(void) | |
868 | { | |
bebe6398 | 869 | char bind_str[128]; |
87aa8f19 JA |
870 | int sk; |
871 | ||
872 | dprint(FD_NET, "starting server\n"); | |
873 | ||
874 | if (!bind_sock) | |
875 | sk = fio_init_server_ip(); | |
876 | else | |
877 | sk = fio_init_server_sock(); | |
878 | ||
879 | if (sk < 0) | |
880 | return sk; | |
881 | ||
bebe6398 JA |
882 | if (!bind_sock) |
883 | sprintf(bind_str, "%s:%u", inet_ntoa(saddr_in.sin_addr), fio_net_port); | |
884 | else | |
885 | strcpy(bind_str, bind_sock); | |
886 | ||
887 | log_info("fio: server listening on %s\n", bind_str); | |
888 | ||
89c1707c | 889 | if (listen(sk, 0) < 0) { |
81179eec JA |
890 | log_err("fio: listen: %s\n", strerror(errno)); |
891 | return -1; | |
892 | } | |
893 | ||
87aa8f19 JA |
894 | return sk; |
895 | } | |
896 | ||
bebe6398 JA |
897 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
898 | int *port, struct in_addr *inp) | |
899 | { | |
900 | *ptr = NULL; | |
901 | *is_sock = 0; | |
6d2cf394 | 902 | *port = fio_net_port; |
bebe6398 JA |
903 | |
904 | if (!strncmp(str, "sock:", 5)) { | |
905 | *ptr = strdup(str + 5); | |
906 | *is_sock = 1; | |
907 | } else { | |
908 | const char *host = str; | |
909 | char *portp; | |
910 | int lport = 0; | |
911 | ||
912 | /* | |
913 | * Is it ip:<ip or host>:port | |
914 | */ | |
915 | if (!strncmp(host, "ip:", 3)) | |
916 | host += 3; | |
917 | else if (host[0] == ':') { | |
918 | /* String is :port */ | |
919 | host++; | |
920 | lport = atoi(host); | |
921 | if (!lport || lport > 65535) { | |
922 | log_err("fio: bad server port %u\n", port); | |
923 | return 1; | |
924 | } | |
925 | /* no hostname given, we are done */ | |
926 | *port = lport; | |
927 | return 0; | |
928 | } | |
929 | ||
930 | /* | |
931 | * If no port seen yet, check if there's a last ':' at the end | |
932 | */ | |
933 | if (!lport) { | |
934 | portp = strchr(host, ':'); | |
935 | if (portp) { | |
936 | *portp = '\0'; | |
937 | portp++; | |
938 | lport = atoi(portp); | |
939 | if (!lport || lport > 65535) { | |
940 | log_err("fio: bad server port %u\n", port); | |
941 | return 1; | |
942 | } | |
943 | } | |
944 | } | |
945 | ||
946 | if (lport) | |
947 | *port = lport; | |
948 | ||
949 | *ptr = strdup(host); | |
950 | ||
951 | if (inet_aton(host, inp) != 1) { | |
952 | struct hostent *hent; | |
953 | ||
954 | hent = gethostbyname(host); | |
955 | if (!hent) { | |
bebe6398 JA |
956 | free(*ptr); |
957 | *ptr = NULL; | |
958 | return 1; | |
959 | } | |
960 | ||
961 | memcpy(inp, hent->h_addr, 4); | |
962 | } | |
963 | } | |
964 | ||
965 | if (*port == 0) | |
966 | *port = fio_net_port; | |
967 | ||
968 | return 0; | |
969 | } | |
970 | ||
87aa8f19 JA |
971 | /* |
972 | * Server arg should be one of: | |
973 | * | |
974 | * sock:/path/to/socket | |
975 | * ip:1.2.3.4 | |
976 | * 1.2.3.4 | |
977 | * | |
978 | * Where sock uses unix domain sockets, and ip binds the server to | |
979 | * a specific interface. If no arguments are given to the server, it | |
980 | * uses IP and binds to 0.0.0.0. | |
981 | * | |
982 | */ | |
983 | static int fio_handle_server_arg(void) | |
984 | { | |
6d2cf394 | 985 | int port = fio_net_port; |
a7de0a11 | 986 | int is_sock, ret = 0; |
bebe6398 | 987 | |
87aa8f19 JA |
988 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
989 | ||
990 | if (!fio_server_arg) | |
a7de0a11 | 991 | goto out; |
87aa8f19 | 992 | |
4e5b8fb8 | 993 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
6d2cf394 | 994 | &port, &saddr_in.sin_addr); |
4e5b8fb8 JA |
995 | |
996 | if (!is_sock && bind_sock) { | |
997 | free(bind_sock); | |
998 | bind_sock = NULL; | |
999 | } | |
1000 | ||
a7de0a11 | 1001 | out: |
6d2cf394 JA |
1002 | fio_net_port = port; |
1003 | saddr_in.sin_port = htons(port); | |
4e5b8fb8 | 1004 | return ret; |
87aa8f19 JA |
1005 | } |
1006 | ||
1007 | static int fio_server(void) | |
1008 | { | |
1009 | int sk, ret; | |
1010 | ||
1011 | dprint(FD_NET, "starting server\n"); | |
1012 | ||
1013 | if (fio_handle_server_arg()) | |
1014 | return -1; | |
1015 | ||
1016 | sk = fio_init_server_connection(); | |
1017 | if (sk < 0) | |
1018 | return -1; | |
81179eec JA |
1019 | |
1020 | ret = accept_loop(sk); | |
87aa8f19 | 1021 | |
81179eec | 1022 | close(sk); |
87aa8f19 JA |
1023 | |
1024 | if (fio_server_arg) { | |
1025 | free(fio_server_arg); | |
1026 | fio_server_arg = NULL; | |
1027 | } | |
bebe6398 JA |
1028 | if (bind_sock) |
1029 | free(bind_sock); | |
87aa8f19 | 1030 | |
81179eec JA |
1031 | return ret; |
1032 | } | |
1033 | ||
7b821684 | 1034 | void fio_server_got_signal(int signal) |
9abea48b | 1035 | { |
7b821684 JA |
1036 | if (signal == SIGPIPE) |
1037 | server_fd = -1; | |
1038 | else { | |
1039 | log_info("\nfio: terminating on signal %d\n", signal); | |
1040 | exit_backend = 1; | |
1041 | } | |
9abea48b JA |
1042 | } |
1043 | ||
13755d94 JA |
1044 | static int check_existing_pidfile(const char *pidfile) |
1045 | { | |
1046 | struct stat sb; | |
1047 | char buf[16]; | |
1048 | pid_t pid; | |
1049 | FILE *f; | |
1050 | ||
1051 | if (stat(pidfile, &sb)) | |
1052 | return 0; | |
1053 | ||
1054 | f = fopen(pidfile, "r"); | |
1055 | if (!f) | |
1056 | return 0; | |
1057 | ||
bfc3b179 | 1058 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1059 | fclose(f); |
1060 | return 1; | |
1061 | } | |
1062 | fclose(f); | |
1063 | ||
1064 | pid = atoi(buf); | |
1065 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1066 | return errno != ESRCH; |
13755d94 JA |
1067 | |
1068 | return 1; | |
1069 | } | |
1070 | ||
1071 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1072 | { |
1073 | FILE *fpid; | |
1074 | ||
1075 | fpid = fopen(pidfile, "w"); | |
1076 | if (!fpid) { | |
1077 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1078 | return 1; |
402668f3 JA |
1079 | } |
1080 | ||
1081 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1082 | fclose(fpid); |
1083 | return 0; | |
402668f3 JA |
1084 | } |
1085 | ||
1086 | /* | |
1087 | * If pidfile is specified, background us. | |
1088 | */ | |
1089 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1090 | { |
1091 | pid_t pid; | |
402668f3 | 1092 | int ret; |
e46d8091 | 1093 | |
402668f3 | 1094 | if (!pidfile) |
e46d8091 JA |
1095 | return fio_server(); |
1096 | ||
13755d94 JA |
1097 | if (check_existing_pidfile(pidfile)) { |
1098 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1099 | pidfile); | |
1100 | return -1; | |
1101 | } | |
1102 | ||
e46d8091 JA |
1103 | pid = fork(); |
1104 | if (pid < 0) { | |
13755d94 | 1105 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1106 | free(pidfile); |
c28e8e8c | 1107 | return -1; |
402668f3 | 1108 | } else if (pid) { |
13755d94 JA |
1109 | int ret = write_pid(pid, pidfile); |
1110 | ||
1111 | exit(ret); | |
402668f3 | 1112 | } |
e46d8091 JA |
1113 | |
1114 | setsid(); | |
13755d94 JA |
1115 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1116 | log_syslog = 1; | |
e46d8091 JA |
1117 | close(STDIN_FILENO); |
1118 | close(STDOUT_FILENO); | |
1119 | close(STDERR_FILENO); | |
1120 | f_out = NULL; | |
1121 | f_err = NULL; | |
402668f3 JA |
1122 | |
1123 | ret = fio_server(); | |
1124 | ||
1125 | closelog(); | |
1126 | unlink(pidfile); | |
1127 | free(pidfile); | |
1128 | return ret; | |
e46d8091 | 1129 | } |
87aa8f19 | 1130 | |
bebe6398 | 1131 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1132 | { |
1133 | fio_server_arg = strdup(arg); | |
1134 | } |