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> |
1b42725f | 19 | #include <zlib.h> |
50d16976 JA |
20 | |
21 | #include "fio.h" | |
132159a5 | 22 | #include "server.h" |
fcee5ff6 | 23 | #include "crc/crc16.h" |
c7c6cb4c | 24 | #include "lib/ieee754.h" |
89cf1480 | 25 | |
5adc2447 | 26 | int fio_net_port = FIO_NET_PORT; |
50d16976 | 27 | |
009b1be4 JA |
28 | int exit_backend = 0; |
29 | ||
46c48f1f | 30 | static int server_fd = -1; |
87aa8f19 JA |
31 | static char *fio_server_arg; |
32 | static char *bind_sock; | |
33 | static struct sockaddr_in saddr_in; | |
811826be | 34 | static struct sockaddr_in6 saddr_in6; |
811826be | 35 | static int use_ipv6; |
37db14fe | 36 | |
122c7725 JA |
37 | struct fio_fork_item { |
38 | struct flist_head list; | |
39 | int exitval; | |
40 | int signal; | |
41 | int exited; | |
42 | pid_t pid; | |
43 | }; | |
44 | ||
45 | /* Created on fork on new connection */ | |
46 | static FLIST_HEAD(conn_list); | |
47 | ||
48 | /* Created on job fork from connection */ | |
49 | static FLIST_HEAD(job_list); | |
50 | ||
89c1707c JA |
51 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
52 | "", | |
53 | "QUIT", | |
54 | "EXIT", | |
55 | "JOB", | |
56 | "JOBLINE", | |
57 | "TEXT", | |
58 | "TS", | |
59 | "GS", | |
60 | "SEND_ETA", | |
61 | "ETA", | |
62 | "PROBE", | |
63 | "START", | |
d09a64a0 JA |
64 | "STOP", |
65 | "DISK_UTIL", | |
b9d2f30a | 66 | "SERVER_START", |
807f9971 | 67 | "ADD_JOB", |
b9d2f30a | 68 | "CMD_RUN" |
c70e63e5 | 69 | "CMD_IOLOG", |
89c1707c JA |
70 | }; |
71 | ||
72 | const char *fio_server_op(unsigned int op) | |
73 | { | |
74 | static char buf[32]; | |
75 | ||
76 | if (op < FIO_NET_CMD_NR) | |
77 | return fio_server_ops[op]; | |
78 | ||
79 | sprintf(buf, "UNKNOWN/%d", op); | |
80 | return buf; | |
81 | } | |
82 | ||
5235f626 | 83 | static ssize_t iov_total_len(const struct iovec *iov, int count) |
132159a5 | 84 | { |
5235f626 | 85 | ssize_t ret = 0; |
794d69ca | 86 | |
5235f626 JA |
87 | while (count--) { |
88 | ret += iov->iov_len; | |
89 | iov++; | |
90 | } | |
91 | ||
92 | return ret; | |
93 | } | |
132159a5 | 94 | |
5235f626 JA |
95 | static int fio_sendv_data(int sk, struct iovec *iov, int count) |
96 | { | |
97 | ssize_t total_len = iov_total_len(iov, count); | |
98 | ssize_t ret; | |
99 | ||
100 | do { | |
101 | ret = writev(sk, iov, count); | |
132159a5 | 102 | if (ret > 0) { |
5235f626 JA |
103 | total_len -= ret; |
104 | if (!total_len) | |
132159a5 | 105 | break; |
5235f626 JA |
106 | |
107 | while (ret) { | |
108 | if (ret >= iov->iov_len) { | |
109 | ret -= iov->iov_len; | |
110 | iov++; | |
111 | continue; | |
112 | } | |
113 | iov->iov_base += ret; | |
114 | iov->iov_len -= ret; | |
115 | ret = 0; | |
116 | } | |
132159a5 JA |
117 | } else if (!ret) |
118 | break; | |
119 | else if (errno == EAGAIN || errno == EINTR) | |
120 | continue; | |
7b821684 JA |
121 | else |
122 | break; | |
132159a5 JA |
123 | } while (!exit_backend); |
124 | ||
5235f626 | 125 | if (!total_len) |
132159a5 JA |
126 | return 0; |
127 | ||
8b4e61b2 JA |
128 | if (errno) |
129 | return -errno; | |
130 | ||
132159a5 JA |
131 | return 1; |
132 | } | |
133 | ||
5235f626 JA |
134 | int fio_send_data(int sk, const void *p, unsigned int len) |
135 | { | |
136 | struct iovec iov = { .iov_base = (void *) p, .iov_len = len }; | |
137 | ||
138 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); | |
139 | ||
140 | return fio_sendv_data(sk, &iov, 1); | |
141 | } | |
142 | ||
132159a5 JA |
143 | int fio_recv_data(int sk, void *p, unsigned int len) |
144 | { | |
145 | do { | |
146 | int ret = recv(sk, p, len, MSG_WAITALL); | |
147 | ||
148 | if (ret > 0) { | |
149 | len -= ret; | |
150 | if (!len) | |
151 | break; | |
152 | p += ret; | |
153 | continue; | |
154 | } else if (!ret) | |
155 | break; | |
156 | else if (errno == EAGAIN || errno == EINTR) | |
157 | continue; | |
7b821684 JA |
158 | else |
159 | break; | |
132159a5 JA |
160 | } while (!exit_backend); |
161 | ||
162 | if (!len) | |
163 | return 0; | |
164 | ||
165 | return -1; | |
166 | } | |
167 | ||
168 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
169 | { | |
fcee5ff6 | 170 | uint16_t crc; |
132159a5 | 171 | |
fcee5ff6 JA |
172 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
173 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 174 | |
25dfa848 | 175 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 176 | if (crc != cmd->cmd_crc16) { |
132159a5 | 177 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 178 | cmd->cmd_crc16, crc); |
132159a5 JA |
179 | return 1; |
180 | } | |
181 | ||
182 | cmd->version = le16_to_cpu(cmd->version); | |
183 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
184 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 185 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
186 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
187 | ||
188 | switch (cmd->version) { | |
fa2ea806 | 189 | case FIO_SERVER_VER: |
132159a5 JA |
190 | break; |
191 | default: | |
192 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
193 | return 1; | |
194 | } | |
195 | ||
b9d2f30a | 196 | if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { |
132159a5 JA |
197 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
198 | return 1; | |
199 | } | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
a64e88da JA |
204 | /* |
205 | * Read (and defragment, if necessary) incoming commands | |
206 | */ | |
e951bdc4 | 207 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 208 | { |
a64e88da JA |
209 | struct fio_net_cmd cmd, *cmdret = NULL; |
210 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 211 | uint16_t crc; |
a64e88da JA |
212 | int ret, first = 1; |
213 | void *pdu = NULL; | |
132159a5 | 214 | |
a64e88da JA |
215 | do { |
216 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
217 | if (ret) | |
218 | break; | |
132159a5 | 219 | |
a64e88da JA |
220 | /* We have a command, verify it and swap if need be */ |
221 | ret = verify_convert_cmd(&cmd); | |
222 | if (ret) | |
223 | break; | |
132159a5 | 224 | |
0b8f30a5 JA |
225 | if (first) { |
226 | /* if this is text, add room for \0 at the end */ | |
227 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
228 | assert(!cmdret); | |
229 | } else | |
a64e88da | 230 | cmd_size += cmd.pdu_len; |
132159a5 | 231 | |
a64e88da | 232 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 233 | |
a64e88da JA |
234 | if (first) |
235 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
236 | else if (cmdret->opcode != cmd.opcode) { |
237 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
238 | cmdret->opcode, cmd.opcode); | |
239 | ret = 1; | |
240 | break; | |
241 | } | |
a64e88da JA |
242 | |
243 | if (!cmd.pdu_len) | |
244 | break; | |
245 | ||
246 | /* There's payload, get it */ | |
247 | pdu = (void *) cmdret->payload + pdu_offset; | |
248 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
249 | if (ret) | |
250 | break; | |
251 | ||
252 | /* Verify payload crc */ | |
25dfa848 | 253 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
254 | if (crc != cmd.pdu_crc16) { |
255 | log_err("fio: server bad crc on payload "); | |
256 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
257 | ret = 1; | |
258 | break; | |
259 | } | |
260 | ||
261 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
262 | if (!first) |
263 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
264 | first = 0; |
265 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 266 | |
a64e88da JA |
267 | if (ret) { |
268 | free(cmdret); | |
269 | cmdret = NULL; | |
0b8f30a5 JA |
270 | } else if (cmdret) { |
271 | /* zero-terminate text input */ | |
084d1c6f JA |
272 | if (cmdret->pdu_len) { |
273 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
274 | struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload; | |
275 | char *buf = (char *) pdu->buf; | |
0b8f30a5 | 276 | |
3c3ed070 | 277 | buf[pdu->buf_len] = '\0'; |
084d1c6f | 278 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { |
46bcd498 JA |
279 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload; |
280 | char *buf = (char *) pdu->buf; | |
281 | int len = le32_to_cpu(pdu->buf_len); | |
084d1c6f | 282 | |
46bcd498 | 283 | buf[len] = '\0'; |
084d1c6f | 284 | } |
0b8f30a5 | 285 | } |
084d1c6f | 286 | |
0b8f30a5 | 287 | /* frag flag is internal */ |
a64e88da | 288 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 289 | } |
a64e88da JA |
290 | |
291 | return cmdret; | |
132159a5 JA |
292 | } |
293 | ||
40c60516 JA |
294 | static void add_reply(uint64_t tag, struct flist_head *list) |
295 | { | |
296 | struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag; | |
297 | ||
298 | flist_add_tail(&reply->list, list); | |
299 | } | |
300 | ||
301 | static uint64_t alloc_reply(uint64_t tag, uint16_t opcode) | |
302 | { | |
303 | struct fio_net_cmd_reply *reply; | |
304 | ||
305 | reply = calloc(1, sizeof(*reply)); | |
306 | INIT_FLIST_HEAD(&reply->list); | |
307 | gettimeofday(&reply->tv, NULL); | |
308 | reply->saved_tag = tag; | |
309 | reply->opcode = opcode; | |
310 | ||
311 | return (uintptr_t) reply; | |
312 | } | |
313 | ||
314 | static void free_reply(uint64_t tag) | |
315 | { | |
316 | struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag; | |
317 | ||
318 | free(reply); | |
319 | } | |
320 | ||
53bd8dbc | 321 | void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu) |
132159a5 JA |
322 | { |
323 | uint32_t pdu_len; | |
324 | ||
25dfa848 | 325 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
326 | |
327 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
1b42725f JA |
328 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len)); |
329 | } | |
330 | ||
331 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
332 | { | |
333 | fio_net_cmd_crc_pdu(cmd, cmd->payload); | |
132159a5 JA |
334 | } |
335 | ||
af9c9fb3 | 336 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
40c60516 | 337 | uint64_t *tagptr, struct flist_head *list) |
794d69ca | 338 | { |
7f868316 JA |
339 | struct fio_net_cmd *cmd = NULL; |
340 | size_t this_len, cur_len = 0; | |
40c60516 | 341 | uint64_t tag; |
794d69ca JA |
342 | int ret; |
343 | ||
40c60516 JA |
344 | if (list) { |
345 | assert(tagptr); | |
346 | tag = *tagptr = alloc_reply(*tagptr, opcode); | |
347 | } else | |
348 | tag = tagptr ? *tagptr : 0; | |
349 | ||
794d69ca JA |
350 | do { |
351 | this_len = size; | |
b9d2f30a JA |
352 | if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) |
353 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU; | |
794d69ca | 354 | |
7f868316 JA |
355 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
356 | if (cmd) | |
357 | free(cmd); | |
358 | ||
359 | cur_len = sizeof(*cmd) + this_len; | |
360 | cmd = malloc(cur_len); | |
361 | } | |
794d69ca | 362 | |
af9c9fb3 | 363 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
364 | |
365 | if (this_len < size) | |
ddcc0b69 | 366 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
367 | |
368 | fio_net_cmd_crc(cmd); | |
369 | ||
370 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
371 | size -= this_len; |
372 | buf += this_len; | |
373 | } while (!ret && size); | |
374 | ||
40c60516 JA |
375 | if (list) { |
376 | if (ret) | |
377 | free_reply(tag); | |
378 | else | |
379 | add_reply(tag, list); | |
380 | } | |
381 | ||
7f868316 JA |
382 | if (cmd) |
383 | free(cmd); | |
384 | ||
794d69ca JA |
385 | return ret; |
386 | } | |
387 | ||
89c1707c | 388 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 389 | { |
178cde9f | 390 | struct fio_net_cmd cmd; |
132159a5 | 391 | |
af9c9fb3 | 392 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
393 | fio_net_cmd_crc(&cmd); |
394 | ||
395 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
396 | } | |
397 | ||
89c1707c JA |
398 | /* |
399 | * If 'list' is non-NULL, then allocate and store the sent command for | |
400 | * later verification. | |
401 | */ | |
402 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
403 | struct flist_head *list) | |
404 | { | |
89c1707c JA |
405 | int ret; |
406 | ||
40c60516 JA |
407 | if (list) |
408 | tag = alloc_reply(tag, opcode); | |
89c1707c | 409 | |
40c60516 | 410 | ret = fio_net_send_simple_stack_cmd(sk, opcode, tag); |
89c1707c | 411 | if (ret) { |
40c60516 JA |
412 | if (list) |
413 | free_reply(tag); | |
414 | ||
89c1707c JA |
415 | return ret; |
416 | } | |
417 | ||
40c60516 JA |
418 | if (list) |
419 | add_reply(tag, list); | |
420 | ||
89c1707c JA |
421 | return 0; |
422 | } | |
423 | ||
122c7725 | 424 | int fio_net_send_quit(int sk) |
437377e1 | 425 | { |
46c48f1f | 426 | dprint(FD_NET, "server: sending quit\n"); |
122c7725 | 427 | |
8c95307b | 428 | return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
429 | } |
430 | ||
f58bd2a4 JA |
431 | static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error, |
432 | int signal) | |
132159a5 | 433 | { |
11e950bd | 434 | struct cmd_end_pdu epdu; |
f58bd2a4 | 435 | uint64_t tag = 0; |
122c7725 | 436 | |
f58bd2a4 JA |
437 | if (cmd) |
438 | tag = cmd->tag; | |
122c7725 JA |
439 | |
440 | epdu.error = __cpu_to_le32(error); | |
441 | epdu.signal = __cpu_to_le32(signal); | |
40c60516 | 442 | return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL); |
f58bd2a4 JA |
443 | } |
444 | ||
445 | int fio_net_send_stop(int sk, int error, int signal) | |
446 | { | |
447 | dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal); | |
448 | return fio_net_send_ack(sk, NULL, error, signal); | |
122c7725 JA |
449 | } |
450 | ||
451 | static void fio_server_add_fork_item(pid_t pid, struct flist_head *list) | |
452 | { | |
453 | struct fio_fork_item *ffi; | |
454 | ||
455 | ffi = malloc(sizeof(*ffi)); | |
456 | ffi->exitval = 0; | |
457 | ffi->signal = 0; | |
458 | ffi->exited = 0; | |
459 | ffi->pid = pid; | |
460 | flist_add_tail(&ffi->list, list); | |
461 | } | |
462 | ||
463 | static void fio_server_add_conn_pid(pid_t pid) | |
464 | { | |
465 | dprint(FD_NET, "server: forked off connection job (pid=%u)\n", pid); | |
466 | fio_server_add_fork_item(pid, &conn_list); | |
467 | } | |
468 | ||
469 | static void fio_server_add_job_pid(pid_t pid) | |
470 | { | |
471 | dprint(FD_NET, "server: forked off job job (pid=%u)\n", pid); | |
472 | fio_server_add_fork_item(pid, &job_list); | |
473 | } | |
474 | ||
475 | static void fio_server_check_fork_item(struct fio_fork_item *ffi) | |
476 | { | |
477 | int ret, status; | |
478 | ||
479 | ret = waitpid(ffi->pid, &status, WNOHANG); | |
480 | if (ret < 0) { | |
481 | if (errno == ECHILD) { | |
482 | log_err("fio: connection pid %u disappeared\n", ffi->pid); | |
483 | ffi->exited = 1; | |
484 | } else | |
485 | log_err("fio: waitpid: %s\n", strerror(errno)); | |
486 | } else if (ret == ffi->pid) { | |
487 | if (WIFSIGNALED(status)) { | |
488 | ffi->signal = WTERMSIG(status); | |
489 | ffi->exited = 1; | |
490 | } | |
491 | if (WIFEXITED(status)) { | |
492 | if (WEXITSTATUS(status)) | |
493 | ffi->exitval = WEXITSTATUS(status); | |
494 | ffi->exited = 1; | |
495 | } | |
496 | } | |
497 | } | |
498 | ||
499 | static void fio_server_fork_item_done(struct fio_fork_item *ffi) | |
500 | { | |
501 | dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", ffi->pid, ffi->signal, ffi->exitval); | |
502 | ||
503 | /* | |
504 | * Fold STOP and QUIT... | |
505 | */ | |
506 | fio_net_send_stop(server_fd, ffi->exitval, ffi->signal); | |
507 | fio_net_send_quit(server_fd); | |
508 | flist_del(&ffi->list); | |
509 | free(ffi); | |
510 | } | |
511 | ||
54163255 | 512 | static void fio_server_check_fork_items(struct flist_head *list) |
122c7725 JA |
513 | { |
514 | struct flist_head *entry, *tmp; | |
515 | struct fio_fork_item *ffi; | |
516 | ||
517 | flist_for_each_safe(entry, tmp, list) { | |
518 | ffi = flist_entry(entry, struct fio_fork_item, list); | |
519 | ||
520 | fio_server_check_fork_item(ffi); | |
521 | ||
522 | if (ffi->exited) | |
523 | fio_server_fork_item_done(ffi); | |
524 | } | |
525 | } | |
526 | ||
527 | static void fio_server_check_jobs(void) | |
528 | { | |
54163255 | 529 | fio_server_check_fork_items(&job_list); |
122c7725 JA |
530 | } |
531 | ||
532 | static void fio_server_check_conns(void) | |
533 | { | |
54163255 | 534 | fio_server_check_fork_items(&conn_list); |
122c7725 JA |
535 | } |
536 | ||
537 | static int handle_run_cmd(struct fio_net_cmd *cmd) | |
538 | { | |
539 | pid_t pid; | |
a64e88da | 540 | int ret; |
132159a5 | 541 | |
122c7725 | 542 | set_genesis_time(); |
11e950bd | 543 | |
122c7725 JA |
544 | pid = fork(); |
545 | if (pid) { | |
546 | fio_server_add_job_pid(pid); | |
547 | return 0; | |
548 | } | |
11e950bd | 549 | |
122c7725 | 550 | ret = fio_backend(); |
2bb3f0a7 | 551 | free_threads_shm(); |
122c7725 | 552 | _exit(ret); |
81179eec JA |
553 | } |
554 | ||
b9d2f30a JA |
555 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
556 | { | |
46bcd498 JA |
557 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload; |
558 | void *buf = pdu->buf; | |
b9d2f30a JA |
559 | struct cmd_start_pdu spdu; |
560 | ||
46bcd498 JA |
561 | pdu->buf_len = le32_to_cpu(pdu->buf_len); |
562 | pdu->client_type = le32_to_cpu(pdu->client_type); | |
563 | ||
564 | if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) { | |
122c7725 | 565 | fio_net_send_quit(server_fd); |
b9d2f30a JA |
566 | return -1; |
567 | } | |
568 | ||
569 | spdu.jobs = cpu_to_le32(thread_number); | |
108fea77 | 570 | spdu.stat_outputs = cpu_to_le32(stat_number); |
40c60516 | 571 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL); |
b9d2f30a JA |
572 | return 0; |
573 | } | |
574 | ||
81179eec JA |
575 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
576 | { | |
fa2ea806 JA |
577 | void *pdu = cmd->payload; |
578 | struct cmd_single_line_pdu *cslp; | |
579 | struct cmd_line_pdu *clp; | |
580 | unsigned long offset; | |
b9d2f30a | 581 | struct cmd_start_pdu spdu; |
fa2ea806 | 582 | char **argv; |
b9d2f30a | 583 | int i; |
81179eec | 584 | |
fa2ea806 JA |
585 | clp = pdu; |
586 | clp->lines = le16_to_cpu(clp->lines); | |
46bcd498 | 587 | clp->client_type = le16_to_cpu(clp->client_type); |
fa2ea806 JA |
588 | argv = malloc(clp->lines * sizeof(char *)); |
589 | offset = sizeof(*clp); | |
81179eec | 590 | |
fa2ea806 | 591 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 592 | |
fa2ea806 JA |
593 | for (i = 0; i < clp->lines; i++) { |
594 | cslp = pdu + offset; | |
595 | argv[i] = (char *) cslp->text; | |
596 | ||
597 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
598 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
599 | } | |
81179eec | 600 | |
46bcd498 | 601 | if (parse_cmd_line(clp->lines, argv, clp->client_type)) { |
122c7725 | 602 | fio_net_send_quit(server_fd); |
fa2ea806 | 603 | free(argv); |
81179eec | 604 | return -1; |
e6d1c668 | 605 | } |
81179eec | 606 | |
fa2ea806 JA |
607 | free(argv); |
608 | ||
b9d2f30a | 609 | spdu.jobs = cpu_to_le32(thread_number); |
1e5324e7 | 610 | spdu.stat_outputs = cpu_to_le32(stat_number); |
40c60516 | 611 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL); |
b9d2f30a | 612 | return 0; |
132159a5 JA |
613 | } |
614 | ||
c28e8e8c JA |
615 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
616 | { | |
617 | struct cmd_probe_pdu probe; | |
40c60516 | 618 | uint64_t tag = cmd->tag; |
c28e8e8c | 619 | |
89c1707c JA |
620 | dprint(FD_NET, "server: sending probe reply\n"); |
621 | ||
c28e8e8c JA |
622 | memset(&probe, 0, sizeof(probe)); |
623 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
0dcebdf4 | 624 | #ifdef CONFIG_BIG_ENDIAN |
6eb24791 JA |
625 | probe.bigendian = 1; |
626 | #endif | |
750db473 | 627 | strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version)); |
c28e8e8c | 628 | |
cca84643 JA |
629 | probe.os = FIO_OS; |
630 | probe.arch = FIO_ARCH; | |
38fdef22 | 631 | probe.bpp = sizeof(void *); |
d31e26d0 JA |
632 | probe.cpus = __cpu_to_le32(cpus_online()); |
633 | probe.flags = 0; | |
38fdef22 | 634 | |
40c60516 | 635 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL); |
af9c9fb3 JA |
636 | } |
637 | ||
638 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
639 | { | |
640 | struct jobs_eta *je; | |
641 | size_t size; | |
40c60516 | 642 | uint64_t tag = cmd->tag; |
af9c9fb3 JA |
643 | int i; |
644 | ||
b814fb26 JA |
645 | if (!thread_number) |
646 | return 0; | |
647 | ||
648 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
649 | je = malloc(size); |
650 | memset(je, 0, size); | |
af9c9fb3 JA |
651 | |
652 | if (!calc_thread_status(je, 1)) { | |
653 | free(je); | |
654 | return 0; | |
655 | } | |
656 | ||
657 | dprint(FD_NET, "server sending status\n"); | |
658 | ||
659 | je->nr_running = cpu_to_le32(je->nr_running); | |
660 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
661 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
662 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 | 663 | |
298921d6 | 664 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
3e47bd25 JA |
665 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
666 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
667 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
668 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
669 | } |
670 | ||
c1970b90 | 671 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
af9c9fb3 | 672 | je->eta_sec = cpu_to_le64(je->eta_sec); |
8c621fb2 | 673 | je->nr_threads = cpu_to_le32(je->nr_threads); |
b7f05eb0 | 674 | je->is_pow2 = cpu_to_le32(je->is_pow2); |
af9c9fb3 | 675 | |
40c60516 | 676 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL); |
af9c9fb3 JA |
677 | free(je); |
678 | return 0; | |
c28e8e8c JA |
679 | } |
680 | ||
40c60516 JA |
681 | static int send_update_job_reply(int fd, uint64_t __tag, int error) |
682 | { | |
683 | uint64_t tag = __tag; | |
684 | uint32_t pdu_error; | |
685 | ||
686 | pdu_error = __cpu_to_le32(error); | |
687 | return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL); | |
688 | } | |
689 | ||
f58bd2a4 JA |
690 | static int handle_update_job_cmd(struct fio_net_cmd *cmd) |
691 | { | |
692 | struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload; | |
693 | struct thread_data *td; | |
694 | uint32_t tnumber; | |
695 | ||
696 | tnumber = le32_to_cpu(pdu->thread_number); | |
697 | ||
698 | dprint(FD_NET, "server: updating options for job %u\n", tnumber); | |
699 | ||
30ffacbf | 700 | if (!tnumber || tnumber > thread_number) { |
40c60516 | 701 | send_update_job_reply(server_fd, cmd->tag, ENODEV); |
f58bd2a4 JA |
702 | return 0; |
703 | } | |
704 | ||
30ffacbf | 705 | td = &threads[tnumber - 1]; |
f58bd2a4 | 706 | convert_thread_options_to_cpu(&td->o, &pdu->top); |
40c60516 | 707 | send_update_job_reply(server_fd, cmd->tag, 0); |
f58bd2a4 JA |
708 | return 0; |
709 | } | |
710 | ||
132159a5 JA |
711 | static int handle_command(struct fio_net_cmd *cmd) |
712 | { | |
713 | int ret; | |
714 | ||
4b91ee8f JA |
715 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n", |
716 | fio_server_op(cmd->opcode), cmd->pdu_len, | |
717 | (unsigned long long) cmd->tag); | |
46c48f1f | 718 | |
132159a5 JA |
719 | switch (cmd->opcode) { |
720 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 721 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 722 | return -1; |
d7959186 | 723 | case FIO_NET_CMD_EXIT: |
132159a5 | 724 | exit_backend = 1; |
c28e8e8c | 725 | return -1; |
132159a5 | 726 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 727 | ret = handle_job_cmd(cmd); |
132159a5 | 728 | break; |
81179eec JA |
729 | case FIO_NET_CMD_JOBLINE: |
730 | ret = handle_jobline_cmd(cmd); | |
731 | break; | |
c28e8e8c JA |
732 | case FIO_NET_CMD_PROBE: |
733 | ret = handle_probe_cmd(cmd); | |
734 | break; | |
af9c9fb3 JA |
735 | case FIO_NET_CMD_SEND_ETA: |
736 | ret = handle_send_eta_cmd(cmd); | |
737 | break; | |
b9d2f30a JA |
738 | case FIO_NET_CMD_RUN: |
739 | ret = handle_run_cmd(cmd); | |
740 | break; | |
f58bd2a4 JA |
741 | case FIO_NET_CMD_UPDATE_JOB: |
742 | ret = handle_update_job_cmd(cmd); | |
743 | break; | |
132159a5 | 744 | default: |
3c3ed070 | 745 | log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode)); |
132159a5 JA |
746 | ret = 1; |
747 | } | |
748 | ||
749 | return ret; | |
750 | } | |
751 | ||
122c7725 | 752 | static int handle_connection(int sk) |
132159a5 JA |
753 | { |
754 | struct fio_net_cmd *cmd = NULL; | |
755 | int ret = 0; | |
756 | ||
122c7725 JA |
757 | reset_fio_state(); |
758 | INIT_FLIST_HEAD(&job_list); | |
759 | server_fd = sk; | |
760 | ||
132159a5 JA |
761 | /* read forever */ |
762 | while (!exit_backend) { | |
e951bdc4 JA |
763 | struct pollfd pfd = { |
764 | .fd = sk, | |
765 | .events = POLLIN, | |
766 | }; | |
767 | ||
768 | ret = 0; | |
769 | do { | |
54163255 JA |
770 | int timeout = 1000; |
771 | ||
772 | if (!flist_empty(&job_list)) | |
773 | timeout = 100; | |
3c3ed070 | 774 | |
54163255 | 775 | ret = poll(&pfd, 1, timeout); |
e951bdc4 JA |
776 | if (ret < 0) { |
777 | if (errno == EINTR) | |
778 | break; | |
779 | log_err("fio: poll: %s\n", strerror(errno)); | |
780 | break; | |
19c65179 | 781 | } else if (!ret) { |
122c7725 | 782 | fio_server_check_jobs(); |
e951bdc4 | 783 | continue; |
19c65179 | 784 | } |
e951bdc4 JA |
785 | |
786 | if (pfd.revents & POLLIN) | |
787 | break; | |
788 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
789 | ret = 1; | |
790 | break; | |
791 | } | |
19c65179 | 792 | } while (!exit_backend); |
e951bdc4 | 793 | |
122c7725 JA |
794 | fio_server_check_jobs(); |
795 | ||
e951bdc4 JA |
796 | if (ret < 0) |
797 | break; | |
798 | ||
799 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 800 | if (!cmd) { |
c28e8e8c | 801 | ret = -1; |
132159a5 JA |
802 | break; |
803 | } | |
804 | ||
132159a5 JA |
805 | ret = handle_command(cmd); |
806 | if (ret) | |
807 | break; | |
808 | ||
809 | free(cmd); | |
c77a99e7 | 810 | cmd = NULL; |
132159a5 JA |
811 | } |
812 | ||
813 | if (cmd) | |
814 | free(cmd); | |
815 | ||
122c7725 JA |
816 | close(sk); |
817 | _exit(ret); | |
cc0df00a JA |
818 | } |
819 | ||
50d16976 JA |
820 | static int accept_loop(int listen_sk) |
821 | { | |
bb447a27 | 822 | struct sockaddr_in addr; |
67bf9823 | 823 | socklen_t len = sizeof(addr); |
009b1be4 | 824 | struct pollfd pfd; |
122c7725 | 825 | int ret = 0, sk, flags, exitval = 0; |
50d16976 | 826 | |
60efd14e JA |
827 | dprint(FD_NET, "server enter accept loop\n"); |
828 | ||
009b1be4 JA |
829 | flags = fcntl(listen_sk, F_GETFL); |
830 | flags |= O_NONBLOCK; | |
831 | fcntl(listen_sk, F_SETFL, flags); | |
009b1be4 | 832 | |
122c7725 JA |
833 | while (!exit_backend) { |
834 | pid_t pid; | |
009b1be4 | 835 | |
122c7725 JA |
836 | pfd.fd = listen_sk; |
837 | pfd.events = POLLIN; | |
838 | do { | |
54163255 JA |
839 | int timeout = 1000; |
840 | ||
841 | if (!flist_empty(&conn_list)) | |
842 | timeout = 100; | |
843 | ||
844 | ret = poll(&pfd, 1, timeout); | |
122c7725 JA |
845 | if (ret < 0) { |
846 | if (errno == EINTR) | |
847 | break; | |
848 | log_err("fio: poll: %s\n", strerror(errno)); | |
849 | break; | |
850 | } else if (!ret) { | |
851 | fio_server_check_conns(); | |
852 | continue; | |
853 | } | |
009b1be4 | 854 | |
122c7725 JA |
855 | if (pfd.revents & POLLIN) |
856 | break; | |
857 | } while (!exit_backend); | |
50d16976 | 858 | |
122c7725 | 859 | fio_server_check_conns(); |
46c48f1f | 860 | |
122c7725 JA |
861 | if (exit_backend || ret < 0) |
862 | break; | |
863 | ||
864 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); | |
865 | if (sk < 0) { | |
866 | log_err("fio: accept: %s\n", strerror(errno)); | |
867 | return -1; | |
868 | } | |
37db14fe | 869 | |
122c7725 | 870 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
50d16976 | 871 | |
122c7725 JA |
872 | pid = fork(); |
873 | if (pid) { | |
874 | close(sk); | |
875 | fio_server_add_conn_pid(pid); | |
876 | continue; | |
877 | } | |
5c341e9a | 878 | |
122c7725 JA |
879 | /* exits */ |
880 | handle_connection(sk); | |
881 | } | |
5c341e9a | 882 | |
132159a5 | 883 | return exitval; |
50d16976 JA |
884 | } |
885 | ||
084d1c6f | 886 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 887 | { |
084d1c6f JA |
888 | struct cmd_text_pdu *pdu; |
889 | unsigned int tlen; | |
890 | struct timeval tv; | |
891 | ||
892 | if (server_fd == -1) | |
893 | return log_local_buf(buf, len); | |
894 | ||
895 | tlen = sizeof(*pdu) + len; | |
896 | pdu = malloc(tlen); | |
897 | ||
898 | pdu->level = __cpu_to_le32(level); | |
899 | pdu->buf_len = __cpu_to_le32(len); | |
900 | ||
901 | gettimeofday(&tv, NULL); | |
902 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
903 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 904 | |
084d1c6f JA |
905 | memcpy(pdu->buf, buf, len); |
906 | ||
40c60516 | 907 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL); |
084d1c6f JA |
908 | free(pdu); |
909 | return len; | |
142575e6 JA |
910 | } |
911 | ||
a64e88da JA |
912 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
913 | { | |
914 | dst->max_val = cpu_to_le64(src->max_val); | |
915 | dst->min_val = cpu_to_le64(src->min_val); | |
916 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
917 | |
918 | /* | |
919 | * Encode to IEEE 754 for network transfer | |
920 | */ | |
921 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
922 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
923 | } |
924 | ||
925 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
926 | { | |
927 | int i; | |
928 | ||
298921d6 | 929 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da JA |
930 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); |
931 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
932 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
933 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
934 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
935 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
936 | } | |
937 | ||
938 | dst->kb_base = cpu_to_le32(src->kb_base); | |
ad705bcb | 939 | dst->unit_base = cpu_to_le32(src->unit_base); |
a64e88da | 940 | dst->groupid = cpu_to_le32(src->groupid); |
771e58be | 941 | dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep); |
a64e88da JA |
942 | } |
943 | ||
944 | /* | |
945 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
946 | * into a single payload. | |
947 | */ | |
948 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
949 | { | |
950 | struct cmd_ts_pdu p; | |
951 | int i, j; | |
952 | ||
60efd14e JA |
953 | dprint(FD_NET, "server sending end stats\n"); |
954 | ||
317b3c8b JA |
955 | memset(&p, 0, sizeof(p)); |
956 | ||
a64e88da JA |
957 | strcpy(p.ts.name, ts->name); |
958 | strcpy(p.ts.verror, ts->verror); | |
959 | strcpy(p.ts.description, ts->description); | |
960 | ||
2f122b13 JA |
961 | p.ts.error = cpu_to_le32(ts->error); |
962 | p.ts.thread_number = cpu_to_le32(ts->thread_number); | |
963 | p.ts.groupid = cpu_to_le32(ts->groupid); | |
964 | p.ts.pid = cpu_to_le32(ts->pid); | |
965 | p.ts.members = cpu_to_le32(ts->members); | |
771e58be | 966 | p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep); |
a64e88da | 967 | |
298921d6 | 968 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da JA |
969 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); |
970 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
971 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
972 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
973 | } | |
974 | ||
975 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
976 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
977 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
978 | p.ts.minf = cpu_to_le64(ts->minf); | |
979 | p.ts.majf = cpu_to_le64(ts->majf); | |
980 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
981 | |
982 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
983 | fio_fp64_t *src = &ts->percentile_list[i]; |
984 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 985 | |
cfc03e46 | 986 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 987 | } |
a64e88da JA |
988 | |
989 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
990 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
991 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
992 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
993 | } | |
994 | ||
995 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
996 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
997 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
998 | } | |
999 | ||
298921d6 | 1000 | for (i = 0; i < DDIR_RWDIR_CNT; i++) |
a64e88da JA |
1001 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) |
1002 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
1003 | ||
78799deb | 1004 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da | 1005 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); |
93eee04a | 1006 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
1007 | } |
1008 | ||
93eee04a | 1009 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
1010 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
1011 | ||
298921d6 | 1012 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da JA |
1013 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); |
1014 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
1015 | } | |
1016 | ||
1017 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
1018 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
1019 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
1020 | p.ts.first_error = cpu_to_le32(ts->first_error); |
1021 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
ad705bcb | 1022 | p.ts.unit_base = cpu_to_le32(ts->unit_base); |
a64e88da JA |
1023 | |
1024 | convert_gs(&p.rs, rs); | |
1025 | ||
40c60516 | 1026 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL); |
a64e88da JA |
1027 | } |
1028 | ||
1029 | void fio_server_send_gs(struct group_run_stats *rs) | |
1030 | { | |
1031 | struct group_run_stats gs; | |
1032 | ||
60efd14e JA |
1033 | dprint(FD_NET, "server sending group run stats\n"); |
1034 | ||
a64e88da | 1035 | convert_gs(&gs, rs); |
40c60516 | 1036 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL); |
cf451d1e JA |
1037 | } |
1038 | ||
d09a64a0 JA |
1039 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
1040 | { | |
1041 | int i; | |
1042 | ||
1043 | for (i = 0; i < 2; i++) { | |
1044 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
1045 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
1046 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
1047 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
1048 | } | |
1049 | ||
1050 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
1051 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
1052 | dst->slavecount = cpu_to_le32(src->slavecount); | |
1053 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
1054 | } | |
1055 | ||
1056 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
1057 | { | |
1058 | int i; | |
1059 | ||
1060 | strcpy((char *) dst->name, (char *) src->name); | |
1061 | ||
1062 | for (i = 0; i < 2; i++) { | |
1063 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
1064 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
1065 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
1066 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
1067 | } | |
1068 | ||
1069 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
1070 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
1071 | dst->msec = cpu_to_le64(src->msec); | |
1072 | } | |
1073 | ||
1074 | void fio_server_send_du(void) | |
1075 | { | |
1076 | struct disk_util *du; | |
1077 | struct flist_head *entry; | |
1078 | struct cmd_du_pdu pdu; | |
1079 | ||
1080 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
1081 | ||
0766d92e JA |
1082 | memset(&pdu, 0, sizeof(pdu)); |
1083 | ||
d09a64a0 JA |
1084 | flist_for_each(entry, &disk_list) { |
1085 | du = flist_entry(entry, struct disk_util, list); | |
1086 | ||
1087 | convert_dus(&pdu.dus, &du->dus); | |
1088 | convert_agg(&pdu.agg, &du->agg); | |
1089 | ||
40c60516 | 1090 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL); |
d09a64a0 JA |
1091 | } |
1092 | } | |
1093 | ||
53bd8dbc JA |
1094 | /* |
1095 | * Send a command with a separate PDU, not inlined in the command | |
1096 | */ | |
1097 | static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf, | |
1098 | off_t size, uint64_t tag, uint32_t flags) | |
1099 | { | |
1100 | struct fio_net_cmd cmd; | |
1101 | struct iovec iov[2]; | |
1102 | ||
1103 | iov[0].iov_base = &cmd; | |
1104 | iov[0].iov_len = sizeof(cmd); | |
1105 | iov[1].iov_base = (void *) buf; | |
1106 | iov[1].iov_len = size; | |
1107 | ||
1108 | __fio_init_net_cmd(&cmd, opcode, size, tag); | |
1109 | cmd.flags = __cpu_to_le32(flags); | |
1110 | fio_net_cmd_crc_pdu(&cmd, buf); | |
1111 | ||
8c95307b | 1112 | return fio_sendv_data(sk, iov, 2); |
53bd8dbc JA |
1113 | } |
1114 | ||
1b42725f JA |
1115 | int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name) |
1116 | { | |
f5ed765a | 1117 | struct cmd_iolog_pdu pdu; |
1b42725f JA |
1118 | z_stream stream; |
1119 | void *out_pdu; | |
53bd8dbc | 1120 | int i, ret = 0; |
1b42725f | 1121 | |
2f122b13 | 1122 | pdu.thread_number = cpu_to_le32(td->thread_number); |
f5ed765a JA |
1123 | pdu.nr_samples = __cpu_to_le32(log->nr_samples); |
1124 | pdu.log_type = cpu_to_le32(log->log_type); | |
1125 | strcpy((char *) pdu.name, name); | |
1b42725f JA |
1126 | |
1127 | for (i = 0; i < log->nr_samples; i++) { | |
f5ed765a | 1128 | struct io_sample *s = &log->log[i]; |
1b42725f | 1129 | |
f5ed765a JA |
1130 | s->time = cpu_to_le64(s->time); |
1131 | s->val = cpu_to_le64(s->val); | |
1132 | s->ddir = cpu_to_le32(s->ddir); | |
1133 | s->bs = cpu_to_le32(s->bs); | |
1b42725f JA |
1134 | } |
1135 | ||
1136 | /* | |
1137 | * Dirty - since the log is potentially huge, compress it into | |
1138 | * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving | |
1139 | * side defragment it. | |
1140 | */ | |
1141 | out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); | |
1142 | ||
1143 | stream.zalloc = Z_NULL; | |
1144 | stream.zfree = Z_NULL; | |
1145 | stream.opaque = Z_NULL; | |
1146 | ||
1147 | if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) { | |
53bd8dbc JA |
1148 | ret = 1; |
1149 | goto err; | |
1b42725f JA |
1150 | } |
1151 | ||
1152 | /* | |
f5ed765a | 1153 | * Send header first, it's not compressed. |
1b42725f | 1154 | */ |
53bd8dbc JA |
1155 | ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu, |
1156 | sizeof(pdu), 0, FIO_NET_CMD_F_MORE); | |
1157 | if (ret) | |
1158 | goto err_zlib; | |
1b42725f | 1159 | |
f5ed765a JA |
1160 | stream.next_in = (void *) log->log; |
1161 | stream.avail_in = log->nr_samples * sizeof(struct io_sample); | |
1b42725f JA |
1162 | |
1163 | do { | |
53bd8dbc JA |
1164 | unsigned int this_len, flags = 0; |
1165 | int ret; | |
1b42725f JA |
1166 | |
1167 | stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; | |
1168 | stream.next_out = out_pdu; | |
3c547fe0 JA |
1169 | ret = deflate(&stream, Z_FINISH); |
1170 | /* may be Z_OK, or Z_STREAM_END */ | |
1171 | if (ret < 0) | |
1172 | goto err_zlib; | |
1b42725f JA |
1173 | |
1174 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out; | |
1175 | ||
1b42725f | 1176 | if (stream.avail_in) |
53bd8dbc | 1177 | flags = FIO_NET_CMD_F_MORE; |
1b42725f | 1178 | |
53bd8dbc JA |
1179 | ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, |
1180 | out_pdu, this_len, 0, flags); | |
1181 | if (ret) | |
1182 | goto err_zlib; | |
1b42725f JA |
1183 | } while (stream.avail_in); |
1184 | ||
53bd8dbc | 1185 | err_zlib: |
1b42725f | 1186 | deflateEnd(&stream); |
53bd8dbc JA |
1187 | err: |
1188 | free(out_pdu); | |
1189 | return ret; | |
1b42725f JA |
1190 | } |
1191 | ||
2f122b13 | 1192 | void fio_server_send_add_job(struct thread_data *td) |
807f9971 JA |
1193 | { |
1194 | struct cmd_add_job_pdu pdu; | |
807f9971 | 1195 | |
731e30a2 | 1196 | memset(&pdu, 0, sizeof(pdu)); |
2f122b13 JA |
1197 | pdu.thread_number = cpu_to_le32(td->thread_number); |
1198 | pdu.groupid = cpu_to_le32(td->groupid); | |
1199 | convert_thread_options_to_net(&pdu.top, &td->o); | |
807f9971 | 1200 | |
40c60516 | 1201 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL); |
807f9971 JA |
1202 | } |
1203 | ||
122c7725 JA |
1204 | void fio_server_send_start(struct thread_data *td) |
1205 | { | |
1206 | assert(server_fd != -1); | |
1207 | ||
1208 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL); | |
1209 | } | |
1210 | ||
87aa8f19 | 1211 | static int fio_init_server_ip(void) |
81179eec | 1212 | { |
811826be | 1213 | struct sockaddr *addr; |
67bf9823 | 1214 | socklen_t socklen; |
87aa8f19 | 1215 | int sk, opt; |
81179eec | 1216 | |
811826be JA |
1217 | if (use_ipv6) |
1218 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
1219 | else | |
1220 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
1221 | ||
81179eec JA |
1222 | if (sk < 0) { |
1223 | log_err("fio: socket: %s\n", strerror(errno)); | |
1224 | return -1; | |
1225 | } | |
1226 | ||
1227 | opt = 1; | |
1f81991e | 1228 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) { |
81179eec | 1229 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 1230 | close(sk); |
81179eec JA |
1231 | return -1; |
1232 | } | |
1233 | #ifdef SO_REUSEPORT | |
6eb24791 | 1234 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 1235 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 1236 | close(sk); |
81179eec JA |
1237 | return -1; |
1238 | } | |
1239 | #endif | |
1240 | ||
811826be JA |
1241 | if (use_ipv6) { |
1242 | addr = (struct sockaddr *) &saddr_in6; | |
1243 | socklen = sizeof(saddr_in6); | |
1244 | saddr_in6.sin6_family = AF_INET6; | |
1245 | } else { | |
1246 | addr = (struct sockaddr *) &saddr_in; | |
1247 | socklen = sizeof(saddr_in); | |
1248 | saddr_in.sin_family = AF_INET; | |
1249 | } | |
81179eec | 1250 | |
811826be | 1251 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 1252 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 1253 | close(sk); |
81179eec JA |
1254 | return -1; |
1255 | } | |
1256 | ||
87aa8f19 JA |
1257 | return sk; |
1258 | } | |
1259 | ||
1260 | static int fio_init_server_sock(void) | |
1261 | { | |
1262 | struct sockaddr_un addr; | |
67bf9823 | 1263 | socklen_t len; |
87aa8f19 JA |
1264 | mode_t mode; |
1265 | int sk; | |
1266 | ||
1267 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
1268 | if (sk < 0) { | |
1269 | log_err("fio: socket: %s\n", strerror(errno)); | |
1270 | return -1; | |
1271 | } | |
1272 | ||
1273 | mode = umask(000); | |
1274 | ||
1275 | memset(&addr, 0, sizeof(addr)); | |
1276 | addr.sun_family = AF_UNIX; | |
1277 | strcpy(addr.sun_path, bind_sock); | |
1278 | unlink(bind_sock); | |
1279 | ||
1280 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
1281 | ||
1282 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
1283 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 1284 | close(sk); |
87aa8f19 JA |
1285 | return -1; |
1286 | } | |
1287 | ||
1288 | umask(mode); | |
1289 | return sk; | |
1290 | } | |
1291 | ||
1292 | static int fio_init_server_connection(void) | |
1293 | { | |
bebe6398 | 1294 | char bind_str[128]; |
87aa8f19 JA |
1295 | int sk; |
1296 | ||
1297 | dprint(FD_NET, "starting server\n"); | |
1298 | ||
1299 | if (!bind_sock) | |
1300 | sk = fio_init_server_ip(); | |
1301 | else | |
1302 | sk = fio_init_server_sock(); | |
1303 | ||
1304 | if (sk < 0) | |
1305 | return sk; | |
1306 | ||
811826be JA |
1307 | if (!bind_sock) { |
1308 | char *p, port[16]; | |
1309 | const void *src; | |
1310 | int af; | |
1311 | ||
1312 | if (use_ipv6) { | |
1313 | af = AF_INET6; | |
1314 | src = &saddr_in6.sin6_addr; | |
1315 | } else { | |
1316 | af = AF_INET; | |
1317 | src = &saddr_in.sin_addr; | |
1318 | } | |
1319 | ||
1320 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
1321 | ||
1322 | sprintf(port, ",%u", fio_net_port); | |
1323 | if (p) | |
1324 | strcat(p, port); | |
1325 | else | |
1326 | strcpy(bind_str, port); | |
1327 | } else | |
bebe6398 JA |
1328 | strcpy(bind_str, bind_sock); |
1329 | ||
1330 | log_info("fio: server listening on %s\n", bind_str); | |
1331 | ||
89c1707c | 1332 | if (listen(sk, 0) < 0) { |
81179eec JA |
1333 | log_err("fio: listen: %s\n", strerror(errno)); |
1334 | return -1; | |
1335 | } | |
1336 | ||
87aa8f19 JA |
1337 | return sk; |
1338 | } | |
1339 | ||
3ec62ec4 JA |
1340 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
1341 | struct in6_addr *inp6) | |
1342 | ||
1343 | { | |
1344 | int ret = 0; | |
1345 | ||
1346 | if (*ipv6) | |
1347 | ret = inet_pton(AF_INET6, host, inp6); | |
1348 | else | |
1349 | ret = inet_pton(AF_INET, host, inp); | |
1350 | ||
1351 | if (ret != 1) { | |
1352 | struct hostent *hent; | |
1353 | ||
1354 | hent = gethostbyname(host); | |
1355 | if (!hent) { | |
1356 | log_err("fio: failed to resolve <%s>\n", host); | |
1357 | return 0; | |
1358 | } | |
1359 | ||
1360 | if (*ipv6) { | |
1361 | if (hent->h_addrtype != AF_INET6) { | |
1362 | log_info("fio: falling back to IPv4\n"); | |
1363 | *ipv6 = 0; | |
1364 | } else | |
1365 | memcpy(inp6, hent->h_addr_list[0], 16); | |
1366 | } | |
1367 | if (!*ipv6) { | |
1368 | if (hent->h_addrtype != AF_INET) { | |
1369 | log_err("fio: lookup type mismatch\n"); | |
1370 | return 0; | |
1371 | } | |
1372 | memcpy(inp, hent->h_addr_list[0], 4); | |
1373 | } | |
1374 | ret = 1; | |
1375 | } | |
1376 | ||
1377 | return !(ret == 1); | |
1378 | } | |
1379 | ||
660a2bfb JA |
1380 | /* |
1381 | * Parse a host/ip/port string. Reads from 'str'. | |
1382 | * | |
1383 | * Outputs: | |
1384 | * | |
1385 | * For IPv4: | |
1386 | * *ptr is the host, *port is the port, inp is the destination. | |
1387 | * For IPv6: | |
1388 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1389 | * For local domain sockets: | |
1390 | * *ptr is the filename, *is_sock is 1. | |
1391 | */ | |
bebe6398 | 1392 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1393 | int *port, struct in_addr *inp, |
1394 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1395 | { |
76867621 JA |
1396 | const char *host = str; |
1397 | char *portp; | |
3ec62ec4 | 1398 | int lport = 0; |
76867621 | 1399 | |
bebe6398 JA |
1400 | *ptr = NULL; |
1401 | *is_sock = 0; | |
6d2cf394 | 1402 | *port = fio_net_port; |
811826be | 1403 | *ipv6 = 0; |
bebe6398 JA |
1404 | |
1405 | if (!strncmp(str, "sock:", 5)) { | |
1406 | *ptr = strdup(str + 5); | |
1407 | *is_sock = 1; | |
76867621 JA |
1408 | |
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | /* | |
1413 | * Is it ip:<ip or host>:port | |
1414 | */ | |
1415 | if (!strncmp(host, "ip:", 3)) | |
1416 | host += 3; | |
1417 | else if (!strncmp(host, "ip4:", 4)) | |
1418 | host += 4; | |
1419 | else if (!strncmp(host, "ip6:", 4)) { | |
1420 | host += 4; | |
1421 | *ipv6 = 1; | |
1422 | } else if (host[0] == ':') { | |
1423 | /* String is :port */ | |
1424 | host++; | |
1425 | lport = atoi(host); | |
1426 | if (!lport || lport > 65535) { | |
1427 | log_err("fio: bad server port %u\n", port); | |
1428 | return 1; | |
1429 | } | |
1430 | /* no hostname given, we are done */ | |
1431 | *port = lport; | |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * If no port seen yet, check if there's a last ':' at the end | |
1437 | */ | |
1438 | if (!lport) { | |
1439 | portp = strchr(host, ','); | |
1440 | if (portp) { | |
1441 | *portp = '\0'; | |
1442 | portp++; | |
1443 | lport = atoi(portp); | |
bebe6398 JA |
1444 | if (!lport || lport > 65535) { |
1445 | log_err("fio: bad server port %u\n", port); | |
1446 | return 1; | |
1447 | } | |
bebe6398 | 1448 | } |
76867621 | 1449 | } |
bebe6398 | 1450 | |
76867621 JA |
1451 | if (lport) |
1452 | *port = lport; | |
bebe6398 | 1453 | |
76867621 JA |
1454 | if (!strlen(host)) |
1455 | return 0; | |
bebe6398 | 1456 | |
76867621 | 1457 | *ptr = strdup(host); |
811826be | 1458 | |
3ec62ec4 JA |
1459 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1460 | free(*ptr); | |
1461 | *ptr = NULL; | |
1462 | return 1; | |
bebe6398 JA |
1463 | } |
1464 | ||
1465 | if (*port == 0) | |
1466 | *port = fio_net_port; | |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
87aa8f19 JA |
1471 | /* |
1472 | * Server arg should be one of: | |
1473 | * | |
1474 | * sock:/path/to/socket | |
1475 | * ip:1.2.3.4 | |
1476 | * 1.2.3.4 | |
1477 | * | |
1478 | * Where sock uses unix domain sockets, and ip binds the server to | |
1479 | * a specific interface. If no arguments are given to the server, it | |
1480 | * uses IP and binds to 0.0.0.0. | |
1481 | * | |
1482 | */ | |
1483 | static int fio_handle_server_arg(void) | |
1484 | { | |
6d2cf394 | 1485 | int port = fio_net_port; |
a7de0a11 | 1486 | int is_sock, ret = 0; |
bebe6398 | 1487 | |
87aa8f19 JA |
1488 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1489 | ||
1490 | if (!fio_server_arg) | |
a7de0a11 | 1491 | goto out; |
87aa8f19 | 1492 | |
4e5b8fb8 | 1493 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1494 | &port, &saddr_in.sin_addr, |
1495 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1496 | |
1497 | if (!is_sock && bind_sock) { | |
1498 | free(bind_sock); | |
1499 | bind_sock = NULL; | |
1500 | } | |
1501 | ||
a7de0a11 | 1502 | out: |
6d2cf394 JA |
1503 | fio_net_port = port; |
1504 | saddr_in.sin_port = htons(port); | |
811826be | 1505 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1506 | return ret; |
87aa8f19 JA |
1507 | } |
1508 | ||
1509 | static int fio_server(void) | |
1510 | { | |
1511 | int sk, ret; | |
1512 | ||
1513 | dprint(FD_NET, "starting server\n"); | |
1514 | ||
1515 | if (fio_handle_server_arg()) | |
1516 | return -1; | |
1517 | ||
1518 | sk = fio_init_server_connection(); | |
1519 | if (sk < 0) | |
1520 | return -1; | |
81179eec JA |
1521 | |
1522 | ret = accept_loop(sk); | |
87aa8f19 | 1523 | |
81179eec | 1524 | close(sk); |
87aa8f19 JA |
1525 | |
1526 | if (fio_server_arg) { | |
1527 | free(fio_server_arg); | |
1528 | fio_server_arg = NULL; | |
1529 | } | |
bebe6398 JA |
1530 | if (bind_sock) |
1531 | free(bind_sock); | |
87aa8f19 | 1532 | |
81179eec JA |
1533 | return ret; |
1534 | } | |
1535 | ||
7b821684 | 1536 | void fio_server_got_signal(int signal) |
9abea48b | 1537 | { |
7b821684 JA |
1538 | if (signal == SIGPIPE) |
1539 | server_fd = -1; | |
1540 | else { | |
1541 | log_info("\nfio: terminating on signal %d\n", signal); | |
1542 | exit_backend = 1; | |
1543 | } | |
9abea48b JA |
1544 | } |
1545 | ||
13755d94 JA |
1546 | static int check_existing_pidfile(const char *pidfile) |
1547 | { | |
1548 | struct stat sb; | |
1549 | char buf[16]; | |
1550 | pid_t pid; | |
1551 | FILE *f; | |
1552 | ||
1553 | if (stat(pidfile, &sb)) | |
1554 | return 0; | |
1555 | ||
1556 | f = fopen(pidfile, "r"); | |
1557 | if (!f) | |
1558 | return 0; | |
1559 | ||
bfc3b179 | 1560 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1561 | fclose(f); |
1562 | return 1; | |
1563 | } | |
1564 | fclose(f); | |
1565 | ||
1566 | pid = atoi(buf); | |
1567 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1568 | return errno != ESRCH; |
13755d94 JA |
1569 | |
1570 | return 1; | |
1571 | } | |
1572 | ||
1573 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1574 | { |
1575 | FILE *fpid; | |
1576 | ||
1577 | fpid = fopen(pidfile, "w"); | |
1578 | if (!fpid) { | |
1579 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1580 | return 1; |
402668f3 JA |
1581 | } |
1582 | ||
1583 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1584 | fclose(fpid); |
1585 | return 0; | |
402668f3 JA |
1586 | } |
1587 | ||
1588 | /* | |
1589 | * If pidfile is specified, background us. | |
1590 | */ | |
1591 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1592 | { |
1593 | pid_t pid; | |
402668f3 | 1594 | int ret; |
e46d8091 | 1595 | |
93bcfd20 | 1596 | #if defined(WIN32) |
905c78b9 | 1597 | WSADATA wsd; |
3c3ed070 | 1598 | WSAStartup(MAKEWORD(2, 2), &wsd); |
93bcfd20 BC |
1599 | #endif |
1600 | ||
402668f3 | 1601 | if (!pidfile) |
e46d8091 JA |
1602 | return fio_server(); |
1603 | ||
13755d94 JA |
1604 | if (check_existing_pidfile(pidfile)) { |
1605 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1606 | pidfile); | |
1607 | return -1; | |
1608 | } | |
1609 | ||
e46d8091 JA |
1610 | pid = fork(); |
1611 | if (pid < 0) { | |
13755d94 | 1612 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1613 | free(pidfile); |
c28e8e8c | 1614 | return -1; |
402668f3 | 1615 | } else if (pid) { |
13755d94 JA |
1616 | int ret = write_pid(pid, pidfile); |
1617 | ||
1618 | exit(ret); | |
402668f3 | 1619 | } |
e46d8091 JA |
1620 | |
1621 | setsid(); | |
13755d94 JA |
1622 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1623 | log_syslog = 1; | |
e46d8091 JA |
1624 | close(STDIN_FILENO); |
1625 | close(STDOUT_FILENO); | |
1626 | close(STDERR_FILENO); | |
1627 | f_out = NULL; | |
1628 | f_err = NULL; | |
402668f3 JA |
1629 | |
1630 | ret = fio_server(); | |
1631 | ||
1632 | closelog(); | |
1633 | unlink(pidfile); | |
1634 | free(pidfile); | |
1635 | return ret; | |
e46d8091 | 1636 | } |
87aa8f19 | 1637 | |
bebe6398 | 1638 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1639 | { |
1640 | fio_server_arg = strdup(arg); | |
1641 | } |