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 | 6 | #include <errno.h> |
50d16976 | 7 | #include <sys/poll.h> |
50d16976 JA |
8 | #include <sys/types.h> |
9 | #include <sys/wait.h> | |
d05c4a03 | 10 | #include <sys/socket.h> |
87aa8f19 JA |
11 | #include <sys/stat.h> |
12 | #include <sys/un.h> | |
1f51bba9 | 13 | #include <sys/uio.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> |
3989b143 | 19 | #ifdef CONFIG_ZLIB |
1b42725f | 20 | #include <zlib.h> |
3989b143 | 21 | #endif |
50d16976 JA |
22 | |
23 | #include "fio.h" | |
296ab20a | 24 | #include "options.h" |
132159a5 | 25 | #include "server.h" |
fcee5ff6 | 26 | #include "crc/crc16.h" |
c7c6cb4c | 27 | #include "lib/ieee754.h" |
ca09be4b JA |
28 | #include "verify.h" |
29 | #include "smalloc.h" | |
89cf1480 | 30 | |
5adc2447 | 31 | int fio_net_port = FIO_NET_PORT; |
50d16976 | 32 | |
009b1be4 JA |
33 | int exit_backend = 0; |
34 | ||
f77d4b73 JA |
35 | enum { |
36 | SK_F_FREE = 1, | |
37 | SK_F_COPY = 2, | |
38 | SK_F_SIMPLE = 4, | |
39 | }; | |
40 | ||
41 | struct sk_entry { | |
42 | struct flist_head list; | |
43 | int opcode; | |
44 | void *buf; | |
45 | off_t size; | |
46 | uint64_t *tagptr; | |
47 | int flags; | |
48 | }; | |
49 | ||
50 | struct sk_out { | |
51 | int sk; | |
52 | struct fio_mutex *lock; | |
53 | struct flist_head list; | |
54 | struct fio_mutex *wait; | |
55 | }; | |
56 | ||
87aa8f19 JA |
57 | static char *fio_server_arg; |
58 | static char *bind_sock; | |
59 | static struct sockaddr_in saddr_in; | |
811826be | 60 | static struct sockaddr_in6 saddr_in6; |
811826be | 61 | static int use_ipv6; |
3989b143 JA |
62 | #ifdef CONFIG_ZLIB |
63 | static unsigned int has_zlib = 1; | |
64 | #else | |
65 | static unsigned int has_zlib = 0; | |
66 | #endif | |
67 | static unsigned int use_zlib; | |
ca09be4b | 68 | static char me[128]; |
37db14fe | 69 | |
f77d4b73 JA |
70 | static pthread_key_t sk_out_key; |
71 | ||
122c7725 JA |
72 | struct fio_fork_item { |
73 | struct flist_head list; | |
74 | int exitval; | |
75 | int signal; | |
76 | int exited; | |
77 | pid_t pid; | |
78 | }; | |
79 | ||
ca09be4b JA |
80 | struct cmd_reply { |
81 | struct fio_mutex lock; | |
82 | void *data; | |
83 | size_t size; | |
84 | int error; | |
85 | }; | |
86 | ||
89c1707c JA |
87 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
88 | "", | |
89 | "QUIT", | |
90 | "EXIT", | |
91 | "JOB", | |
92 | "JOBLINE", | |
93 | "TEXT", | |
94 | "TS", | |
95 | "GS", | |
96 | "SEND_ETA", | |
97 | "ETA", | |
98 | "PROBE", | |
99 | "START", | |
d09a64a0 JA |
100 | "STOP", |
101 | "DISK_UTIL", | |
b9d2f30a | 102 | "SERVER_START", |
807f9971 | 103 | "ADD_JOB", |
ca09be4b JA |
104 | "RUN", |
105 | "IOLOG", | |
106 | "UPDATE_JOB", | |
107 | "LOAD_FILE", | |
108 | "VTRIGGER", | |
109 | "SENDFILE", | |
89c1707c JA |
110 | }; |
111 | ||
f77d4b73 JA |
112 | static void sk_lock(struct sk_out *sk_out) |
113 | { | |
114 | fio_mutex_down(sk_out->lock); | |
115 | } | |
116 | ||
117 | static void sk_unlock(struct sk_out *sk_out) | |
118 | { | |
119 | fio_mutex_up(sk_out->lock); | |
120 | } | |
121 | ||
89c1707c JA |
122 | const char *fio_server_op(unsigned int op) |
123 | { | |
124 | static char buf[32]; | |
125 | ||
126 | if (op < FIO_NET_CMD_NR) | |
127 | return fio_server_ops[op]; | |
128 | ||
129 | sprintf(buf, "UNKNOWN/%d", op); | |
130 | return buf; | |
131 | } | |
132 | ||
5235f626 | 133 | static ssize_t iov_total_len(const struct iovec *iov, int count) |
132159a5 | 134 | { |
5235f626 | 135 | ssize_t ret = 0; |
794d69ca | 136 | |
5235f626 JA |
137 | while (count--) { |
138 | ret += iov->iov_len; | |
139 | iov++; | |
140 | } | |
141 | ||
142 | return ret; | |
143 | } | |
132159a5 | 144 | |
5235f626 JA |
145 | static int fio_sendv_data(int sk, struct iovec *iov, int count) |
146 | { | |
147 | ssize_t total_len = iov_total_len(iov, count); | |
148 | ssize_t ret; | |
149 | ||
150 | do { | |
151 | ret = writev(sk, iov, count); | |
132159a5 | 152 | if (ret > 0) { |
5235f626 JA |
153 | total_len -= ret; |
154 | if (!total_len) | |
132159a5 | 155 | break; |
5235f626 JA |
156 | |
157 | while (ret) { | |
158 | if (ret >= iov->iov_len) { | |
159 | ret -= iov->iov_len; | |
160 | iov++; | |
161 | continue; | |
162 | } | |
163 | iov->iov_base += ret; | |
164 | iov->iov_len -= ret; | |
165 | ret = 0; | |
166 | } | |
132159a5 JA |
167 | } else if (!ret) |
168 | break; | |
169 | else if (errno == EAGAIN || errno == EINTR) | |
170 | continue; | |
7b821684 JA |
171 | else |
172 | break; | |
132159a5 JA |
173 | } while (!exit_backend); |
174 | ||
5235f626 | 175 | if (!total_len) |
132159a5 JA |
176 | return 0; |
177 | ||
8b4e61b2 JA |
178 | if (errno) |
179 | return -errno; | |
180 | ||
132159a5 JA |
181 | return 1; |
182 | } | |
183 | ||
5235f626 JA |
184 | int fio_send_data(int sk, const void *p, unsigned int len) |
185 | { | |
186 | struct iovec iov = { .iov_base = (void *) p, .iov_len = len }; | |
187 | ||
188 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); | |
189 | ||
190 | return fio_sendv_data(sk, &iov, 1); | |
191 | } | |
192 | ||
132159a5 JA |
193 | int fio_recv_data(int sk, void *p, unsigned int len) |
194 | { | |
195 | do { | |
196 | int ret = recv(sk, p, len, MSG_WAITALL); | |
197 | ||
198 | if (ret > 0) { | |
199 | len -= ret; | |
200 | if (!len) | |
201 | break; | |
202 | p += ret; | |
203 | continue; | |
204 | } else if (!ret) | |
205 | break; | |
206 | else if (errno == EAGAIN || errno == EINTR) | |
207 | continue; | |
7b821684 JA |
208 | else |
209 | break; | |
132159a5 JA |
210 | } while (!exit_backend); |
211 | ||
212 | if (!len) | |
213 | return 0; | |
214 | ||
215 | return -1; | |
216 | } | |
217 | ||
218 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
219 | { | |
fcee5ff6 | 220 | uint16_t crc; |
132159a5 | 221 | |
fcee5ff6 JA |
222 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
223 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 224 | |
25dfa848 | 225 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 226 | if (crc != cmd->cmd_crc16) { |
132159a5 | 227 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 228 | cmd->cmd_crc16, crc); |
132159a5 JA |
229 | return 1; |
230 | } | |
231 | ||
232 | cmd->version = le16_to_cpu(cmd->version); | |
233 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
234 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 235 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
236 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
237 | ||
238 | switch (cmd->version) { | |
fa2ea806 | 239 | case FIO_SERVER_VER: |
132159a5 JA |
240 | break; |
241 | default: | |
242 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
243 | return 1; | |
244 | } | |
245 | ||
b9d2f30a | 246 | if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { |
132159a5 JA |
247 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
248 | return 1; | |
249 | } | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
a64e88da JA |
254 | /* |
255 | * Read (and defragment, if necessary) incoming commands | |
256 | */ | |
e951bdc4 | 257 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 258 | { |
dfbf1f6f | 259 | struct fio_net_cmd cmd, *tmp, *cmdret = NULL; |
a64e88da | 260 | size_t cmd_size = 0, pdu_offset = 0; |
fcee5ff6 | 261 | uint16_t crc; |
a64e88da JA |
262 | int ret, first = 1; |
263 | void *pdu = NULL; | |
132159a5 | 264 | |
a64e88da JA |
265 | do { |
266 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
267 | if (ret) | |
268 | break; | |
132159a5 | 269 | |
a64e88da JA |
270 | /* We have a command, verify it and swap if need be */ |
271 | ret = verify_convert_cmd(&cmd); | |
272 | if (ret) | |
273 | break; | |
132159a5 | 274 | |
0b8f30a5 JA |
275 | if (first) { |
276 | /* if this is text, add room for \0 at the end */ | |
277 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
278 | assert(!cmdret); | |
279 | } else | |
a64e88da | 280 | cmd_size += cmd.pdu_len; |
132159a5 | 281 | |
dfbf1f6f JA |
282 | if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) { |
283 | log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size); | |
284 | ret = 1; | |
285 | break; | |
286 | } | |
287 | ||
288 | tmp = realloc(cmdret, cmd_size); | |
289 | if (!tmp) { | |
290 | log_err("fio: server failed allocating cmd\n"); | |
291 | ret = 1; | |
292 | break; | |
293 | } | |
294 | cmdret = tmp; | |
132159a5 | 295 | |
a64e88da JA |
296 | if (first) |
297 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
298 | else if (cmdret->opcode != cmd.opcode) { |
299 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
300 | cmdret->opcode, cmd.opcode); | |
301 | ret = 1; | |
302 | break; | |
303 | } | |
a64e88da JA |
304 | |
305 | if (!cmd.pdu_len) | |
306 | break; | |
307 | ||
308 | /* There's payload, get it */ | |
309 | pdu = (void *) cmdret->payload + pdu_offset; | |
310 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
311 | if (ret) | |
312 | break; | |
313 | ||
314 | /* Verify payload crc */ | |
25dfa848 | 315 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
316 | if (crc != cmd.pdu_crc16) { |
317 | log_err("fio: server bad crc on payload "); | |
318 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
319 | ret = 1; | |
320 | break; | |
321 | } | |
322 | ||
323 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
324 | if (!first) |
325 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
326 | first = 0; |
327 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 328 | |
a64e88da JA |
329 | if (ret) { |
330 | free(cmdret); | |
331 | cmdret = NULL; | |
0b8f30a5 JA |
332 | } else if (cmdret) { |
333 | /* zero-terminate text input */ | |
084d1c6f JA |
334 | if (cmdret->pdu_len) { |
335 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
8a1db9a1 JA |
336 | struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload; |
337 | char *buf = (char *) __pdu->buf; | |
0b8f30a5 | 338 | |
8a1db9a1 | 339 | buf[__pdu->buf_len] = '\0'; |
084d1c6f | 340 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { |
8a1db9a1 JA |
341 | struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload; |
342 | char *buf = (char *) __pdu->buf; | |
343 | int len = le32_to_cpu(__pdu->buf_len); | |
084d1c6f | 344 | |
46bcd498 | 345 | buf[len] = '\0'; |
084d1c6f | 346 | } |
0b8f30a5 | 347 | } |
084d1c6f | 348 | |
0b8f30a5 | 349 | /* frag flag is internal */ |
a64e88da | 350 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 351 | } |
a64e88da JA |
352 | |
353 | return cmdret; | |
132159a5 JA |
354 | } |
355 | ||
40c60516 JA |
356 | static void add_reply(uint64_t tag, struct flist_head *list) |
357 | { | |
a572bbfb | 358 | struct fio_net_cmd_reply *reply; |
40c60516 | 359 | |
a572bbfb | 360 | reply = (struct fio_net_cmd_reply *) (uintptr_t) tag; |
40c60516 JA |
361 | flist_add_tail(&reply->list, list); |
362 | } | |
363 | ||
364 | static uint64_t alloc_reply(uint64_t tag, uint16_t opcode) | |
365 | { | |
366 | struct fio_net_cmd_reply *reply; | |
367 | ||
368 | reply = calloc(1, sizeof(*reply)); | |
369 | INIT_FLIST_HEAD(&reply->list); | |
c7b09783 | 370 | fio_gettime(&reply->tv, NULL); |
40c60516 JA |
371 | reply->saved_tag = tag; |
372 | reply->opcode = opcode; | |
373 | ||
374 | return (uintptr_t) reply; | |
375 | } | |
376 | ||
377 | static void free_reply(uint64_t tag) | |
378 | { | |
a572bbfb | 379 | struct fio_net_cmd_reply *reply; |
40c60516 | 380 | |
a572bbfb | 381 | reply = (struct fio_net_cmd_reply *) (uintptr_t) tag; |
40c60516 JA |
382 | free(reply); |
383 | } | |
384 | ||
53bd8dbc | 385 | void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu) |
132159a5 JA |
386 | { |
387 | uint32_t pdu_len; | |
388 | ||
25dfa848 | 389 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
390 | |
391 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
1b42725f JA |
392 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len)); |
393 | } | |
394 | ||
395 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
396 | { | |
397 | fio_net_cmd_crc_pdu(cmd, cmd->payload); | |
132159a5 JA |
398 | } |
399 | ||
af9c9fb3 | 400 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
40c60516 | 401 | uint64_t *tagptr, struct flist_head *list) |
794d69ca | 402 | { |
7f868316 JA |
403 | struct fio_net_cmd *cmd = NULL; |
404 | size_t this_len, cur_len = 0; | |
40c60516 | 405 | uint64_t tag; |
794d69ca JA |
406 | int ret; |
407 | ||
40c60516 JA |
408 | if (list) { |
409 | assert(tagptr); | |
410 | tag = *tagptr = alloc_reply(*tagptr, opcode); | |
411 | } else | |
412 | tag = tagptr ? *tagptr : 0; | |
413 | ||
794d69ca JA |
414 | do { |
415 | this_len = size; | |
b9d2f30a JA |
416 | if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) |
417 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU; | |
794d69ca | 418 | |
7f868316 JA |
419 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
420 | if (cmd) | |
421 | free(cmd); | |
422 | ||
423 | cur_len = sizeof(*cmd) + this_len; | |
424 | cmd = malloc(cur_len); | |
425 | } | |
794d69ca | 426 | |
af9c9fb3 | 427 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
428 | |
429 | if (this_len < size) | |
ddcc0b69 | 430 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
431 | |
432 | fio_net_cmd_crc(cmd); | |
433 | ||
434 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
435 | size -= this_len; |
436 | buf += this_len; | |
437 | } while (!ret && size); | |
438 | ||
40c60516 JA |
439 | if (list) { |
440 | if (ret) | |
441 | free_reply(tag); | |
442 | else | |
443 | add_reply(tag, list); | |
444 | } | |
445 | ||
7f868316 JA |
446 | if (cmd) |
447 | free(cmd); | |
448 | ||
794d69ca JA |
449 | return ret; |
450 | } | |
451 | ||
f77d4b73 JA |
452 | static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size, |
453 | uint64_t *tagptr, int flags) | |
454 | { | |
455 | struct sk_out *sk_out = pthread_getspecific(sk_out_key); | |
456 | struct sk_entry *entry; | |
457 | ||
458 | entry = smalloc(sizeof(*entry)); | |
459 | entry->opcode = opcode; | |
460 | if (flags & SK_F_COPY) { | |
461 | entry->buf = smalloc(size); | |
462 | memcpy(entry->buf, buf, size); | |
463 | } else | |
464 | entry->buf = buf; | |
465 | entry->size = size; | |
466 | entry->tagptr = tagptr; | |
467 | entry->flags = flags; | |
468 | ||
469 | sk_lock(sk_out); | |
470 | flist_add_tail(&entry->list, &sk_out->list); | |
471 | sk_unlock(sk_out); | |
472 | ||
473 | fio_mutex_up(sk_out->wait); | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
89c1707c | 478 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 479 | { |
178cde9f | 480 | struct fio_net_cmd cmd; |
132159a5 | 481 | |
af9c9fb3 | 482 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
483 | fio_net_cmd_crc(&cmd); |
484 | ||
485 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
486 | } | |
487 | ||
89c1707c JA |
488 | /* |
489 | * If 'list' is non-NULL, then allocate and store the sent command for | |
490 | * later verification. | |
491 | */ | |
492 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
493 | struct flist_head *list) | |
494 | { | |
89c1707c JA |
495 | int ret; |
496 | ||
40c60516 JA |
497 | if (list) |
498 | tag = alloc_reply(tag, opcode); | |
89c1707c | 499 | |
40c60516 | 500 | ret = fio_net_send_simple_stack_cmd(sk, opcode, tag); |
89c1707c | 501 | if (ret) { |
40c60516 JA |
502 | if (list) |
503 | free_reply(tag); | |
504 | ||
89c1707c JA |
505 | return ret; |
506 | } | |
507 | ||
40c60516 JA |
508 | if (list) |
509 | add_reply(tag, list); | |
510 | ||
89c1707c JA |
511 | return 0; |
512 | } | |
513 | ||
f77d4b73 JA |
514 | static int fio_net_queue_quit(void) |
515 | { | |
516 | dprint(FD_NET, "server: sending quit\n"); | |
517 | ||
518 | return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, 0, SK_F_SIMPLE); | |
519 | } | |
520 | ||
122c7725 | 521 | int fio_net_send_quit(int sk) |
437377e1 | 522 | { |
46c48f1f | 523 | dprint(FD_NET, "server: sending quit\n"); |
122c7725 | 524 | |
8c95307b | 525 | return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
526 | } |
527 | ||
f77d4b73 | 528 | static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal) |
132159a5 | 529 | { |
11e950bd | 530 | struct cmd_end_pdu epdu; |
f58bd2a4 | 531 | uint64_t tag = 0; |
122c7725 | 532 | |
f58bd2a4 JA |
533 | if (cmd) |
534 | tag = cmd->tag; | |
122c7725 JA |
535 | |
536 | epdu.error = __cpu_to_le32(error); | |
537 | epdu.signal = __cpu_to_le32(signal); | |
f77d4b73 | 538 | return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY); |
f58bd2a4 JA |
539 | } |
540 | ||
f77d4b73 | 541 | static int fio_net_queue_stop(int error, int signal) |
f58bd2a4 JA |
542 | { |
543 | dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal); | |
f77d4b73 | 544 | return fio_net_send_ack(NULL, error, signal); |
122c7725 JA |
545 | } |
546 | ||
547 | static void fio_server_add_fork_item(pid_t pid, struct flist_head *list) | |
548 | { | |
549 | struct fio_fork_item *ffi; | |
550 | ||
551 | ffi = malloc(sizeof(*ffi)); | |
552 | ffi->exitval = 0; | |
553 | ffi->signal = 0; | |
554 | ffi->exited = 0; | |
555 | ffi->pid = pid; | |
556 | flist_add_tail(&ffi->list, list); | |
557 | } | |
558 | ||
6348b5de | 559 | static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid) |
122c7725 | 560 | { |
a7533dbd | 561 | dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid); |
6348b5de | 562 | fio_server_add_fork_item(pid, conn_list); |
122c7725 JA |
563 | } |
564 | ||
6348b5de | 565 | static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid) |
122c7725 | 566 | { |
a7533dbd | 567 | dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid); |
6348b5de | 568 | fio_server_add_fork_item(pid, job_list); |
122c7725 JA |
569 | } |
570 | ||
571 | static void fio_server_check_fork_item(struct fio_fork_item *ffi) | |
572 | { | |
573 | int ret, status; | |
574 | ||
575 | ret = waitpid(ffi->pid, &status, WNOHANG); | |
576 | if (ret < 0) { | |
577 | if (errno == ECHILD) { | |
a7533dbd | 578 | log_err("fio: connection pid %u disappeared\n", (int) ffi->pid); |
122c7725 JA |
579 | ffi->exited = 1; |
580 | } else | |
581 | log_err("fio: waitpid: %s\n", strerror(errno)); | |
582 | } else if (ret == ffi->pid) { | |
583 | if (WIFSIGNALED(status)) { | |
584 | ffi->signal = WTERMSIG(status); | |
585 | ffi->exited = 1; | |
586 | } | |
587 | if (WIFEXITED(status)) { | |
588 | if (WEXITSTATUS(status)) | |
589 | ffi->exitval = WEXITSTATUS(status); | |
590 | ffi->exited = 1; | |
591 | } | |
592 | } | |
593 | } | |
594 | ||
f77d4b73 | 595 | static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop) |
122c7725 | 596 | { |
a7533dbd | 597 | dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval); |
122c7725 JA |
598 | |
599 | /* | |
600 | * Fold STOP and QUIT... | |
601 | */ | |
f77d4b73 JA |
602 | if (stop) { |
603 | fio_net_queue_stop(ffi->exitval, ffi->signal); | |
604 | fio_net_queue_quit(); | |
605 | } | |
606 | ||
122c7725 JA |
607 | flist_del(&ffi->list); |
608 | free(ffi); | |
609 | } | |
610 | ||
f77d4b73 | 611 | static void fio_server_check_fork_items(struct flist_head *list, bool stop) |
122c7725 JA |
612 | { |
613 | struct flist_head *entry, *tmp; | |
614 | struct fio_fork_item *ffi; | |
615 | ||
616 | flist_for_each_safe(entry, tmp, list) { | |
617 | ffi = flist_entry(entry, struct fio_fork_item, list); | |
618 | ||
619 | fio_server_check_fork_item(ffi); | |
620 | ||
621 | if (ffi->exited) | |
f77d4b73 | 622 | fio_server_fork_item_done(ffi, stop); |
122c7725 JA |
623 | } |
624 | } | |
625 | ||
6348b5de | 626 | static void fio_server_check_jobs(struct flist_head *job_list) |
122c7725 | 627 | { |
f77d4b73 | 628 | fio_server_check_fork_items(job_list, true); |
122c7725 JA |
629 | } |
630 | ||
6348b5de | 631 | static void fio_server_check_conns(struct flist_head *conn_list) |
122c7725 | 632 | { |
f77d4b73 | 633 | fio_server_check_fork_items(conn_list, false); |
122c7725 JA |
634 | } |
635 | ||
323255cc JA |
636 | static int handle_load_file_cmd(struct fio_net_cmd *cmd) |
637 | { | |
638 | struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload; | |
639 | void *file_name = pdu->file; | |
640 | struct cmd_start_pdu spdu; | |
641 | ||
642 | dprint(FD_NET, "server: loading local file %s\n", (char *) file_name); | |
643 | ||
644 | pdu->name_len = le16_to_cpu(pdu->name_len); | |
645 | pdu->client_type = le16_to_cpu(pdu->client_type); | |
646 | ||
647 | if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) { | |
f77d4b73 | 648 | fio_net_queue_quit(); |
323255cc JA |
649 | return -1; |
650 | } | |
651 | ||
652 | spdu.jobs = cpu_to_le32(thread_number); | |
653 | spdu.stat_outputs = cpu_to_le32(stat_number); | |
f77d4b73 | 654 | fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY); |
323255cc JA |
655 | return 0; |
656 | } | |
657 | ||
f77d4b73 JA |
658 | static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list, |
659 | struct fio_net_cmd *cmd) | |
122c7725 | 660 | { |
f77d4b73 | 661 | struct backend_data data; |
122c7725 | 662 | pid_t pid; |
a64e88da | 663 | int ret; |
132159a5 | 664 | |
cbb1303c | 665 | fio_time_init(); |
122c7725 | 666 | set_genesis_time(); |
11e950bd | 667 | |
122c7725 JA |
668 | pid = fork(); |
669 | if (pid) { | |
6348b5de | 670 | fio_server_add_job_pid(job_list, pid); |
122c7725 JA |
671 | return 0; |
672 | } | |
11e950bd | 673 | |
f77d4b73 JA |
674 | data.key = sk_out_key; |
675 | data.ptr = sk_out; | |
676 | //pthread_setspecific(sk_out_key, sk_out); | |
677 | ret = fio_backend(&data); | |
2bb3f0a7 | 678 | free_threads_shm(); |
122c7725 | 679 | _exit(ret); |
81179eec JA |
680 | } |
681 | ||
b9d2f30a JA |
682 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
683 | { | |
46bcd498 JA |
684 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload; |
685 | void *buf = pdu->buf; | |
b9d2f30a JA |
686 | struct cmd_start_pdu spdu; |
687 | ||
46bcd498 JA |
688 | pdu->buf_len = le32_to_cpu(pdu->buf_len); |
689 | pdu->client_type = le32_to_cpu(pdu->client_type); | |
690 | ||
691 | if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) { | |
f77d4b73 | 692 | fio_net_queue_quit(); |
b9d2f30a JA |
693 | return -1; |
694 | } | |
695 | ||
696 | spdu.jobs = cpu_to_le32(thread_number); | |
108fea77 | 697 | spdu.stat_outputs = cpu_to_le32(stat_number); |
f77d4b73 JA |
698 | |
699 | fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY); | |
b9d2f30a JA |
700 | return 0; |
701 | } | |
702 | ||
81179eec JA |
703 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
704 | { | |
fa2ea806 JA |
705 | void *pdu = cmd->payload; |
706 | struct cmd_single_line_pdu *cslp; | |
707 | struct cmd_line_pdu *clp; | |
708 | unsigned long offset; | |
b9d2f30a | 709 | struct cmd_start_pdu spdu; |
fa2ea806 | 710 | char **argv; |
b9d2f30a | 711 | int i; |
81179eec | 712 | |
fa2ea806 JA |
713 | clp = pdu; |
714 | clp->lines = le16_to_cpu(clp->lines); | |
46bcd498 | 715 | clp->client_type = le16_to_cpu(clp->client_type); |
fa2ea806 JA |
716 | argv = malloc(clp->lines * sizeof(char *)); |
717 | offset = sizeof(*clp); | |
81179eec | 718 | |
fa2ea806 | 719 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 720 | |
fa2ea806 JA |
721 | for (i = 0; i < clp->lines; i++) { |
722 | cslp = pdu + offset; | |
723 | argv[i] = (char *) cslp->text; | |
724 | ||
725 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
726 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
727 | } | |
81179eec | 728 | |
46bcd498 | 729 | if (parse_cmd_line(clp->lines, argv, clp->client_type)) { |
f77d4b73 | 730 | fio_net_queue_quit(); |
fa2ea806 | 731 | free(argv); |
81179eec | 732 | return -1; |
e6d1c668 | 733 | } |
81179eec | 734 | |
fa2ea806 JA |
735 | free(argv); |
736 | ||
b9d2f30a | 737 | spdu.jobs = cpu_to_le32(thread_number); |
1e5324e7 | 738 | spdu.stat_outputs = cpu_to_le32(stat_number); |
f77d4b73 JA |
739 | |
740 | fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY); | |
b9d2f30a | 741 | return 0; |
132159a5 JA |
742 | } |
743 | ||
c28e8e8c JA |
744 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
745 | { | |
3989b143 JA |
746 | struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload; |
747 | struct cmd_probe_reply_pdu probe; | |
40c60516 | 748 | uint64_t tag = cmd->tag; |
c28e8e8c | 749 | |
89c1707c JA |
750 | dprint(FD_NET, "server: sending probe reply\n"); |
751 | ||
ca09be4b JA |
752 | strcpy(me, (char *) pdu->server); |
753 | ||
c28e8e8c JA |
754 | memset(&probe, 0, sizeof(probe)); |
755 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
0dcebdf4 | 756 | #ifdef CONFIG_BIG_ENDIAN |
6eb24791 JA |
757 | probe.bigendian = 1; |
758 | #endif | |
750db473 | 759 | strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version)); |
c28e8e8c | 760 | |
cca84643 JA |
761 | probe.os = FIO_OS; |
762 | probe.arch = FIO_ARCH; | |
38fdef22 | 763 | probe.bpp = sizeof(void *); |
d31e26d0 | 764 | probe.cpus = __cpu_to_le32(cpus_online()); |
3989b143 JA |
765 | |
766 | /* | |
767 | * If the client supports compression and we do too, then enable it | |
768 | */ | |
769 | if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) { | |
770 | probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB); | |
771 | use_zlib = 1; | |
772 | } else { | |
773 | probe.flags = 0; | |
774 | use_zlib = 0; | |
775 | } | |
38fdef22 | 776 | |
f77d4b73 | 777 | return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY); |
af9c9fb3 JA |
778 | } |
779 | ||
780 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
781 | { | |
782 | struct jobs_eta *je; | |
40c60516 | 783 | uint64_t tag = cmd->tag; |
723297c9 | 784 | size_t size; |
af9c9fb3 JA |
785 | int i; |
786 | ||
e123c833 JA |
787 | dprint(FD_NET, "server sending status\n"); |
788 | ||
789 | /* | |
790 | * Fake ETA return if we don't have a local one, otherwise the client | |
791 | * will end up timing out waiting for a response to the ETA request | |
792 | */ | |
c5103619 | 793 | je = get_jobs_eta(true, &size); |
b2bee93a JA |
794 | if (!je) { |
795 | size = sizeof(*je); | |
796 | je = calloc(1, size); | |
797 | } else { | |
e123c833 JA |
798 | je->nr_running = cpu_to_le32(je->nr_running); |
799 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
800 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
801 | je->nr_setting_up = cpu_to_le32(je->nr_setting_up); | |
802 | je->files_open = cpu_to_le32(je->files_open); | |
803 | ||
804 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { | |
805 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); | |
806 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
807 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
808 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
809 | je->rate[i] = cpu_to_le32(je->rate[i]); | |
810 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
811 | } | |
af9c9fb3 | 812 | |
e123c833 JA |
813 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
814 | je->eta_sec = cpu_to_le64(je->eta_sec); | |
815 | je->nr_threads = cpu_to_le32(je->nr_threads); | |
816 | je->is_pow2 = cpu_to_le32(je->is_pow2); | |
817 | je->unit_base = cpu_to_le32(je->unit_base); | |
af9c9fb3 JA |
818 | } |
819 | ||
f77d4b73 | 820 | fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE); |
af9c9fb3 | 821 | return 0; |
c28e8e8c JA |
822 | } |
823 | ||
f77d4b73 | 824 | static int send_update_job_reply(uint64_t __tag, int error) |
40c60516 JA |
825 | { |
826 | uint64_t tag = __tag; | |
827 | uint32_t pdu_error; | |
828 | ||
829 | pdu_error = __cpu_to_le32(error); | |
f77d4b73 | 830 | return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY); |
40c60516 JA |
831 | } |
832 | ||
f58bd2a4 JA |
833 | static int handle_update_job_cmd(struct fio_net_cmd *cmd) |
834 | { | |
835 | struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload; | |
836 | struct thread_data *td; | |
837 | uint32_t tnumber; | |
838 | ||
839 | tnumber = le32_to_cpu(pdu->thread_number); | |
840 | ||
841 | dprint(FD_NET, "server: updating options for job %u\n", tnumber); | |
842 | ||
30ffacbf | 843 | if (!tnumber || tnumber > thread_number) { |
f77d4b73 | 844 | send_update_job_reply(cmd->tag, ENODEV); |
f58bd2a4 JA |
845 | return 0; |
846 | } | |
847 | ||
30ffacbf | 848 | td = &threads[tnumber - 1]; |
f58bd2a4 | 849 | convert_thread_options_to_cpu(&td->o, &pdu->top); |
f77d4b73 | 850 | send_update_job_reply(cmd->tag, 0); |
f58bd2a4 JA |
851 | return 0; |
852 | } | |
853 | ||
ca09be4b JA |
854 | static int handle_trigger_cmd(struct fio_net_cmd *cmd) |
855 | { | |
856 | struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload; | |
857 | char *buf = (char *) pdu->cmd; | |
858 | struct all_io_list *rep; | |
859 | size_t sz; | |
860 | ||
861 | pdu->len = le16_to_cpu(pdu->len); | |
862 | buf[pdu->len] = '\0'; | |
863 | ||
864 | rep = get_all_io_list(IO_LIST_ALL, &sz); | |
865 | if (!rep) { | |
866 | struct all_io_list state; | |
867 | ||
868 | state.threads = cpu_to_le64((uint64_t) 0); | |
f77d4b73 JA |
869 | fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY); |
870 | } else | |
871 | fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE); | |
ca09be4b JA |
872 | |
873 | exec_trigger(buf); | |
874 | return 0; | |
875 | } | |
876 | ||
f77d4b73 JA |
877 | static int handle_command(struct sk_out *sk_out, struct flist_head *job_list, |
878 | struct fio_net_cmd *cmd) | |
132159a5 JA |
879 | { |
880 | int ret; | |
881 | ||
4b91ee8f JA |
882 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n", |
883 | fio_server_op(cmd->opcode), cmd->pdu_len, | |
884 | (unsigned long long) cmd->tag); | |
46c48f1f | 885 | |
132159a5 JA |
886 | switch (cmd->opcode) { |
887 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 888 | fio_terminate_threads(TERMINATE_ALL); |
f77d4b73 JA |
889 | ret = 0; |
890 | break; | |
d7959186 | 891 | case FIO_NET_CMD_EXIT: |
132159a5 | 892 | exit_backend = 1; |
c28e8e8c | 893 | return -1; |
323255cc JA |
894 | case FIO_NET_CMD_LOAD_FILE: |
895 | ret = handle_load_file_cmd(cmd); | |
896 | break; | |
132159a5 | 897 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 898 | ret = handle_job_cmd(cmd); |
132159a5 | 899 | break; |
81179eec JA |
900 | case FIO_NET_CMD_JOBLINE: |
901 | ret = handle_jobline_cmd(cmd); | |
902 | break; | |
c28e8e8c JA |
903 | case FIO_NET_CMD_PROBE: |
904 | ret = handle_probe_cmd(cmd); | |
905 | break; | |
af9c9fb3 JA |
906 | case FIO_NET_CMD_SEND_ETA: |
907 | ret = handle_send_eta_cmd(cmd); | |
908 | break; | |
b9d2f30a | 909 | case FIO_NET_CMD_RUN: |
f77d4b73 | 910 | ret = handle_run_cmd(sk_out, job_list, cmd); |
b9d2f30a | 911 | break; |
f58bd2a4 JA |
912 | case FIO_NET_CMD_UPDATE_JOB: |
913 | ret = handle_update_job_cmd(cmd); | |
914 | break; | |
ca09be4b JA |
915 | case FIO_NET_CMD_VTRIGGER: |
916 | ret = handle_trigger_cmd(cmd); | |
917 | break; | |
918 | case FIO_NET_CMD_SENDFILE: { | |
919 | struct cmd_sendfile_reply *in; | |
920 | struct cmd_reply *rep; | |
921 | ||
922 | rep = (struct cmd_reply *) (uintptr_t) cmd->tag; | |
923 | ||
924 | in = (struct cmd_sendfile_reply *) cmd->payload; | |
925 | in->size = le32_to_cpu(in->size); | |
926 | in->error = le32_to_cpu(in->error); | |
927 | if (in->error) { | |
928 | ret = 1; | |
929 | rep->error = in->error; | |
930 | } else { | |
931 | ret = 0; | |
932 | rep->data = smalloc(in->size); | |
933 | if (!rep->data) { | |
934 | ret = 1; | |
935 | rep->error = ENOMEM; | |
936 | } else { | |
937 | rep->size = in->size; | |
938 | memcpy(rep->data, in->data, in->size); | |
939 | } | |
940 | } | |
941 | fio_mutex_up(&rep->lock); | |
942 | break; | |
943 | } | |
132159a5 | 944 | default: |
3c3ed070 | 945 | log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode)); |
132159a5 JA |
946 | ret = 1; |
947 | } | |
948 | ||
949 | return ret; | |
950 | } | |
951 | ||
f77d4b73 JA |
952 | static void handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry) |
953 | { | |
954 | if (entry->flags & SK_F_SIMPLE) { | |
955 | uint64_t tag = 0; | |
956 | ||
957 | if (entry->tagptr) | |
958 | tag = *entry->tagptr; | |
959 | ||
960 | fio_net_send_simple_cmd(sk_out->sk, entry->opcode, tag, NULL); | |
961 | } else | |
962 | fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf, entry->size, entry->tagptr, NULL); | |
963 | ||
964 | if (entry->flags & SK_F_FREE) | |
965 | free(entry->buf); | |
966 | else if (entry->flags & SK_F_COPY) | |
967 | sfree(entry->buf); | |
968 | ||
969 | sfree(entry); | |
970 | } | |
971 | ||
972 | static void handle_xmits(struct sk_out *sk_out) | |
973 | { | |
974 | struct sk_entry *entry; | |
975 | FLIST_HEAD(list); | |
976 | ||
977 | sk_lock(sk_out); | |
978 | if (flist_empty(&sk_out->list)) { | |
979 | sk_unlock(sk_out); | |
980 | return; | |
981 | } | |
982 | ||
983 | flist_splice_init(&sk_out->list, &list); | |
984 | sk_unlock(sk_out); | |
985 | ||
986 | while (!flist_empty(&list)) { | |
987 | entry = flist_entry(list.next, struct sk_entry, list); | |
988 | flist_del(&entry->list); | |
989 | handle_sk_entry(sk_out, entry); | |
990 | } | |
991 | } | |
992 | ||
993 | static int handle_connection(struct sk_out *sk_out) | |
132159a5 JA |
994 | { |
995 | struct fio_net_cmd *cmd = NULL; | |
6348b5de | 996 | FLIST_HEAD(job_list); |
132159a5 JA |
997 | int ret = 0; |
998 | ||
122c7725 | 999 | reset_fio_state(); |
122c7725 | 1000 | |
132159a5 JA |
1001 | /* read forever */ |
1002 | while (!exit_backend) { | |
e951bdc4 | 1003 | struct pollfd pfd = { |
f77d4b73 | 1004 | .fd = sk_out->sk, |
e951bdc4 JA |
1005 | .events = POLLIN, |
1006 | }; | |
1007 | ||
1008 | ret = 0; | |
1009 | do { | |
54163255 JA |
1010 | int timeout = 1000; |
1011 | ||
1012 | if (!flist_empty(&job_list)) | |
1013 | timeout = 100; | |
3c3ed070 | 1014 | |
f77d4b73 JA |
1015 | handle_xmits(sk_out); |
1016 | ||
1017 | ret = poll(&pfd, 1, 0); | |
e951bdc4 JA |
1018 | if (ret < 0) { |
1019 | if (errno == EINTR) | |
1020 | break; | |
1021 | log_err("fio: poll: %s\n", strerror(errno)); | |
1022 | break; | |
19c65179 | 1023 | } else if (!ret) { |
6348b5de | 1024 | fio_server_check_jobs(&job_list); |
f77d4b73 | 1025 | fio_mutex_down_timeout(sk_out->wait, timeout); |
e951bdc4 | 1026 | continue; |
19c65179 | 1027 | } |
e951bdc4 JA |
1028 | |
1029 | if (pfd.revents & POLLIN) | |
1030 | break; | |
1031 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
1032 | ret = 1; | |
1033 | break; | |
1034 | } | |
19c65179 | 1035 | } while (!exit_backend); |
e951bdc4 | 1036 | |
6348b5de | 1037 | fio_server_check_jobs(&job_list); |
122c7725 | 1038 | |
e951bdc4 JA |
1039 | if (ret < 0) |
1040 | break; | |
1041 | ||
f77d4b73 | 1042 | cmd = fio_net_recv_cmd(sk_out->sk); |
132159a5 | 1043 | if (!cmd) { |
c28e8e8c | 1044 | ret = -1; |
132159a5 JA |
1045 | break; |
1046 | } | |
1047 | ||
f77d4b73 | 1048 | ret = handle_command(sk_out, &job_list, cmd); |
132159a5 JA |
1049 | if (ret) |
1050 | break; | |
1051 | ||
1052 | free(cmd); | |
c77a99e7 | 1053 | cmd = NULL; |
132159a5 JA |
1054 | } |
1055 | ||
1056 | if (cmd) | |
1057 | free(cmd); | |
1058 | ||
f77d4b73 JA |
1059 | handle_xmits(sk_out); |
1060 | ||
1061 | close(sk_out->sk); | |
122c7725 | 1062 | _exit(ret); |
cc0df00a JA |
1063 | } |
1064 | ||
296ab20a BE |
1065 | /* get the address on this host bound by the input socket, |
1066 | * whether it is ipv6 or ipv4 */ | |
1067 | ||
f77d4b73 | 1068 | int get_my_addr_str(int sk) |
296ab20a | 1069 | { |
f77d4b73 JA |
1070 | struct sockaddr_in6 myaddr6 = { 0, }; |
1071 | struct sockaddr_in myaddr4 = { 0, }; | |
1072 | struct sockaddr *sockaddr_p; | |
1073 | char *net_addr; | |
1074 | socklen_t len; | |
1075 | int ret; | |
296ab20a | 1076 | |
f77d4b73 JA |
1077 | if (use_ipv6) { |
1078 | len = sizeof(myaddr6); | |
296ab20a | 1079 | sockaddr_p = (struct sockaddr * )&myaddr6; |
f77d4b73 JA |
1080 | net_addr = (char * )&myaddr6.sin6_addr; |
1081 | } else { | |
1082 | len = sizeof(myaddr4); | |
296ab20a | 1083 | sockaddr_p = (struct sockaddr * )&myaddr4; |
f77d4b73 JA |
1084 | net_addr = (char * )&myaddr4.sin_addr; |
1085 | } | |
1086 | ||
296ab20a BE |
1087 | ret = getsockname(sk, sockaddr_p, &len); |
1088 | if (ret) { | |
1089 | log_err("fio: getsockaddr: %s\n", strerror(errno)); | |
296ab20a BE |
1090 | return -1; |
1091 | } | |
f77d4b73 JA |
1092 | |
1093 | if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) { | |
296ab20a | 1094 | log_err("inet_ntop: failed to convert addr to string\n"); |
296ab20a BE |
1095 | return -1; |
1096 | } | |
f77d4b73 | 1097 | |
296ab20a BE |
1098 | dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str); |
1099 | return 0; | |
1100 | } | |
1101 | ||
50d16976 JA |
1102 | static int accept_loop(int listen_sk) |
1103 | { | |
bb447a27 | 1104 | struct sockaddr_in addr; |
479471c4 JA |
1105 | struct sockaddr_in6 addr6; |
1106 | socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr); | |
009b1be4 | 1107 | struct pollfd pfd; |
4a851614 | 1108 | int ret = 0, sk, exitval = 0; |
f77d4b73 | 1109 | struct sk_out *sk_out; |
6348b5de | 1110 | FLIST_HEAD(conn_list); |
50d16976 | 1111 | |
60efd14e JA |
1112 | dprint(FD_NET, "server enter accept loop\n"); |
1113 | ||
4a851614 | 1114 | fio_set_fd_nonblocking(listen_sk, "server"); |
009b1be4 | 1115 | |
f77d4b73 JA |
1116 | sk_out = smalloc(sizeof(*sk_out)); |
1117 | INIT_FLIST_HEAD(&sk_out->list); | |
1118 | sk_out->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); | |
1119 | sk_out->wait = fio_mutex_init(FIO_MUTEX_LOCKED); | |
1120 | ||
1121 | pthread_setspecific(sk_out_key, sk_out); | |
1122 | ||
122c7725 | 1123 | while (!exit_backend) { |
479471c4 JA |
1124 | const char *from; |
1125 | char buf[64]; | |
122c7725 | 1126 | pid_t pid; |
009b1be4 | 1127 | |
122c7725 JA |
1128 | pfd.fd = listen_sk; |
1129 | pfd.events = POLLIN; | |
1130 | do { | |
54163255 JA |
1131 | int timeout = 1000; |
1132 | ||
1133 | if (!flist_empty(&conn_list)) | |
1134 | timeout = 100; | |
1135 | ||
1136 | ret = poll(&pfd, 1, timeout); | |
122c7725 JA |
1137 | if (ret < 0) { |
1138 | if (errno == EINTR) | |
1139 | break; | |
1140 | log_err("fio: poll: %s\n", strerror(errno)); | |
1141 | break; | |
1142 | } else if (!ret) { | |
6348b5de | 1143 | fio_server_check_conns(&conn_list); |
122c7725 JA |
1144 | continue; |
1145 | } | |
009b1be4 | 1146 | |
122c7725 JA |
1147 | if (pfd.revents & POLLIN) |
1148 | break; | |
1149 | } while (!exit_backend); | |
50d16976 | 1150 | |
6348b5de | 1151 | fio_server_check_conns(&conn_list); |
46c48f1f | 1152 | |
122c7725 JA |
1153 | if (exit_backend || ret < 0) |
1154 | break; | |
1155 | ||
479471c4 JA |
1156 | if (use_ipv6) |
1157 | sk = accept(listen_sk, (struct sockaddr *) &addr6, &len); | |
1158 | else | |
1159 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); | |
1160 | ||
122c7725 JA |
1161 | if (sk < 0) { |
1162 | log_err("fio: accept: %s\n", strerror(errno)); | |
1163 | return -1; | |
1164 | } | |
37db14fe | 1165 | |
479471c4 JA |
1166 | if (use_ipv6) |
1167 | from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf)); | |
1168 | else | |
1169 | from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf)); | |
1170 | ||
1171 | dprint(FD_NET, "server: connect from %s\n", from); | |
50d16976 | 1172 | |
f77d4b73 JA |
1173 | sk_out->sk = sk; |
1174 | ||
122c7725 JA |
1175 | pid = fork(); |
1176 | if (pid) { | |
1177 | close(sk); | |
6348b5de | 1178 | fio_server_add_conn_pid(&conn_list, pid); |
f77d4b73 | 1179 | pthread_setspecific(sk_out_key, sk_out); |
122c7725 JA |
1180 | continue; |
1181 | } | |
5c341e9a | 1182 | |
122c7725 | 1183 | /* exits */ |
68d96e51 | 1184 | get_my_addr_str(sk); /* if error, it's already logged, non-fatal */ |
f77d4b73 | 1185 | handle_connection(sk_out); |
122c7725 | 1186 | } |
5c341e9a | 1187 | |
f77d4b73 JA |
1188 | #if 0 |
1189 | fio_mutex_remove(sk_out->lock); | |
1190 | fio_mutex_remove(sk_out->wait); | |
1191 | sfree(sk_out); | |
1192 | pthread_setspecific(sk_out_key, NULL); | |
1193 | #endif | |
1194 | ||
132159a5 | 1195 | return exitval; |
50d16976 JA |
1196 | } |
1197 | ||
084d1c6f | 1198 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 1199 | { |
f77d4b73 | 1200 | struct sk_out *sk_out = pthread_getspecific(sk_out_key); |
084d1c6f JA |
1201 | struct cmd_text_pdu *pdu; |
1202 | unsigned int tlen; | |
1203 | struct timeval tv; | |
1204 | ||
f77d4b73 | 1205 | if (!sk_out || sk_out->sk == -1) |
408e0b90 | 1206 | return -1; |
084d1c6f JA |
1207 | |
1208 | tlen = sizeof(*pdu) + len; | |
1209 | pdu = malloc(tlen); | |
1210 | ||
1211 | pdu->level = __cpu_to_le32(level); | |
1212 | pdu->buf_len = __cpu_to_le32(len); | |
1213 | ||
1214 | gettimeofday(&tv, NULL); | |
1215 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
1216 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 1217 | |
084d1c6f JA |
1218 | memcpy(pdu->buf, buf, len); |
1219 | ||
f77d4b73 | 1220 | fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY); |
084d1c6f JA |
1221 | free(pdu); |
1222 | return len; | |
142575e6 JA |
1223 | } |
1224 | ||
a64e88da JA |
1225 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
1226 | { | |
1227 | dst->max_val = cpu_to_le64(src->max_val); | |
1228 | dst->min_val = cpu_to_le64(src->min_val); | |
1229 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
1230 | |
1231 | /* | |
1232 | * Encode to IEEE 754 for network transfer | |
1233 | */ | |
e5c9093d JA |
1234 | dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); |
1235 | dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
1236 | } |
1237 | ||
1238 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
1239 | { | |
1240 | int i; | |
1241 | ||
298921d6 | 1242 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da JA |
1243 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); |
1244 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
1245 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
1246 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
1247 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
1248 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
1249 | } | |
1250 | ||
1251 | dst->kb_base = cpu_to_le32(src->kb_base); | |
ad705bcb | 1252 | dst->unit_base = cpu_to_le32(src->unit_base); |
a64e88da | 1253 | dst->groupid = cpu_to_le32(src->groupid); |
771e58be | 1254 | dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep); |
a64e88da JA |
1255 | } |
1256 | ||
1257 | /* | |
1258 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
1259 | * into a single payload. | |
1260 | */ | |
1261 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
1262 | { | |
1263 | struct cmd_ts_pdu p; | |
1264 | int i, j; | |
1265 | ||
60efd14e JA |
1266 | dprint(FD_NET, "server sending end stats\n"); |
1267 | ||
317b3c8b JA |
1268 | memset(&p, 0, sizeof(p)); |
1269 | ||
4e59d0f3 JA |
1270 | strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1); |
1271 | strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1); | |
1272 | strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1); | |
a64e88da | 1273 | |
2f122b13 JA |
1274 | p.ts.error = cpu_to_le32(ts->error); |
1275 | p.ts.thread_number = cpu_to_le32(ts->thread_number); | |
1276 | p.ts.groupid = cpu_to_le32(ts->groupid); | |
1277 | p.ts.pid = cpu_to_le32(ts->pid); | |
1278 | p.ts.members = cpu_to_le32(ts->members); | |
771e58be | 1279 | p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep); |
a64e88da | 1280 | |
298921d6 | 1281 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da JA |
1282 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); |
1283 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
1284 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
1285 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
1286 | } | |
1287 | ||
1288 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
1289 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
1290 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
1291 | p.ts.minf = cpu_to_le64(ts->minf); | |
1292 | p.ts.majf = cpu_to_le64(ts->majf); | |
1293 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
988d97ba | 1294 | p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision); |
802ad4a8 JA |
1295 | |
1296 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
1297 | fio_fp64_t *src = &ts->percentile_list[i]; |
1298 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 1299 | |
e5c9093d | 1300 | dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 1301 | } |
a64e88da JA |
1302 | |
1303 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
1304 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
1305 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
1306 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
1307 | } | |
1308 | ||
1309 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
1310 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
1311 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
1312 | } | |
1313 | ||
298921d6 | 1314 | for (i = 0; i < DDIR_RWDIR_CNT; i++) |
a64e88da JA |
1315 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) |
1316 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
1317 | ||
78799deb | 1318 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da | 1319 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); |
93eee04a | 1320 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
3bcb9d94 | 1321 | p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]); |
a64e88da JA |
1322 | } |
1323 | ||
93eee04a | 1324 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
1325 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
1326 | ||
298921d6 | 1327 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
a64e88da JA |
1328 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); |
1329 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
1330 | } | |
1331 | ||
1332 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
1333 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
1334 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
1335 | p.ts.first_error = cpu_to_le32(ts->first_error); |
1336 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
ad705bcb | 1337 | p.ts.unit_base = cpu_to_le32(ts->unit_base); |
a64e88da | 1338 | |
3e260a46 JA |
1339 | p.ts.latency_depth = cpu_to_le32(ts->latency_depth); |
1340 | p.ts.latency_target = cpu_to_le64(ts->latency_target); | |
1341 | p.ts.latency_window = cpu_to_le64(ts->latency_window); | |
e5c9093d | 1342 | p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f)); |
3e260a46 | 1343 | |
66347cfa DE |
1344 | p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos); |
1345 | for (i = 0; i < p.ts.nr_block_infos; i++) | |
1346 | p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]); | |
1347 | ||
a64e88da JA |
1348 | convert_gs(&p.rs, rs); |
1349 | ||
f77d4b73 | 1350 | fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY); |
a64e88da JA |
1351 | } |
1352 | ||
1353 | void fio_server_send_gs(struct group_run_stats *rs) | |
1354 | { | |
1355 | struct group_run_stats gs; | |
1356 | ||
60efd14e JA |
1357 | dprint(FD_NET, "server sending group run stats\n"); |
1358 | ||
a64e88da | 1359 | convert_gs(&gs, rs); |
f77d4b73 | 1360 | fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY); |
cf451d1e JA |
1361 | } |
1362 | ||
d09a64a0 JA |
1363 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
1364 | { | |
1365 | int i; | |
1366 | ||
1367 | for (i = 0; i < 2; i++) { | |
504bc961 JA |
1368 | dst->ios[i] = cpu_to_le64(src->ios[i]); |
1369 | dst->merges[i] = cpu_to_le64(src->merges[i]); | |
d09a64a0 | 1370 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); |
504bc961 | 1371 | dst->ticks[i] = cpu_to_le64(src->ticks[i]); |
d09a64a0 JA |
1372 | } |
1373 | ||
504bc961 JA |
1374 | dst->io_ticks = cpu_to_le64(src->io_ticks); |
1375 | dst->time_in_queue = cpu_to_le64(src->time_in_queue); | |
d09a64a0 | 1376 | dst->slavecount = cpu_to_le32(src->slavecount); |
e5c9093d | 1377 | dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); |
d09a64a0 JA |
1378 | } |
1379 | ||
1380 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
1381 | { | |
1382 | int i; | |
1383 | ||
59140421 JA |
1384 | dst->name[FIO_DU_NAME_SZ - 1] = '\0'; |
1385 | strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1); | |
d09a64a0 JA |
1386 | |
1387 | for (i = 0; i < 2; i++) { | |
504bc961 JA |
1388 | dst->s.ios[i] = cpu_to_le64(src->s.ios[i]); |
1389 | dst->s.merges[i] = cpu_to_le64(src->s.merges[i]); | |
a3b4cf7d | 1390 | dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]); |
504bc961 | 1391 | dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]); |
d09a64a0 JA |
1392 | } |
1393 | ||
504bc961 JA |
1394 | dst->s.io_ticks = cpu_to_le64(src->s.io_ticks); |
1395 | dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue); | |
a3b4cf7d | 1396 | dst->s.msec = cpu_to_le64(src->s.msec); |
d09a64a0 JA |
1397 | } |
1398 | ||
1399 | void fio_server_send_du(void) | |
1400 | { | |
1401 | struct disk_util *du; | |
1402 | struct flist_head *entry; | |
1403 | struct cmd_du_pdu pdu; | |
1404 | ||
1405 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
1406 | ||
0766d92e JA |
1407 | memset(&pdu, 0, sizeof(pdu)); |
1408 | ||
d09a64a0 JA |
1409 | flist_for_each(entry, &disk_list) { |
1410 | du = flist_entry(entry, struct disk_util, list); | |
1411 | ||
1412 | convert_dus(&pdu.dus, &du->dus); | |
1413 | convert_agg(&pdu.agg, &du->agg); | |
1414 | ||
f77d4b73 | 1415 | fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY); |
d09a64a0 JA |
1416 | } |
1417 | } | |
1418 | ||
53bd8dbc JA |
1419 | /* |
1420 | * Send a command with a separate PDU, not inlined in the command | |
1421 | */ | |
1422 | static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf, | |
1423 | off_t size, uint64_t tag, uint32_t flags) | |
1424 | { | |
1425 | struct fio_net_cmd cmd; | |
1426 | struct iovec iov[2]; | |
1427 | ||
9f247261 | 1428 | iov[0].iov_base = (void *) &cmd; |
53bd8dbc JA |
1429 | iov[0].iov_len = sizeof(cmd); |
1430 | iov[1].iov_base = (void *) buf; | |
1431 | iov[1].iov_len = size; | |
1432 | ||
1433 | __fio_init_net_cmd(&cmd, opcode, size, tag); | |
1434 | cmd.flags = __cpu_to_le32(flags); | |
1435 | fio_net_cmd_crc_pdu(&cmd, buf); | |
1436 | ||
8c95307b | 1437 | return fio_sendv_data(sk, iov, 2); |
53bd8dbc JA |
1438 | } |
1439 | ||
f77d4b73 JA |
1440 | static int fio_send_iolog_gz(struct sk_out *sk_out, struct cmd_iolog_pdu *pdu, |
1441 | struct io_log *log) | |
1b42725f | 1442 | { |
3989b143 JA |
1443 | int ret = 0; |
1444 | #ifdef CONFIG_ZLIB | |
1b42725f JA |
1445 | z_stream stream; |
1446 | void *out_pdu; | |
1b42725f JA |
1447 | |
1448 | /* | |
1449 | * Dirty - since the log is potentially huge, compress it into | |
1450 | * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving | |
1451 | * side defragment it. | |
1452 | */ | |
1453 | out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); | |
1454 | ||
1455 | stream.zalloc = Z_NULL; | |
1456 | stream.zfree = Z_NULL; | |
1457 | stream.opaque = Z_NULL; | |
1458 | ||
1459 | if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) { | |
53bd8dbc JA |
1460 | ret = 1; |
1461 | goto err; | |
1b42725f JA |
1462 | } |
1463 | ||
f5ed765a | 1464 | stream.next_in = (void *) log->log; |
ae588852 | 1465 | stream.avail_in = log->nr_samples * log_entry_sz(log); |
1b42725f JA |
1466 | |
1467 | do { | |
53bd8dbc | 1468 | unsigned int this_len, flags = 0; |
1b42725f JA |
1469 | |
1470 | stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; | |
1471 | stream.next_out = out_pdu; | |
3c547fe0 JA |
1472 | ret = deflate(&stream, Z_FINISH); |
1473 | /* may be Z_OK, or Z_STREAM_END */ | |
1474 | if (ret < 0) | |
1475 | goto err_zlib; | |
1b42725f JA |
1476 | |
1477 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out; | |
1478 | ||
1b42725f | 1479 | if (stream.avail_in) |
53bd8dbc | 1480 | flags = FIO_NET_CMD_F_MORE; |
1b42725f | 1481 | |
f77d4b73 | 1482 | ret = fio_send_cmd_ext_pdu(sk_out->sk, FIO_NET_CMD_IOLOG, |
53bd8dbc JA |
1483 | out_pdu, this_len, 0, flags); |
1484 | if (ret) | |
1485 | goto err_zlib; | |
1b42725f JA |
1486 | } while (stream.avail_in); |
1487 | ||
53bd8dbc | 1488 | err_zlib: |
1b42725f | 1489 | deflateEnd(&stream); |
53bd8dbc JA |
1490 | err: |
1491 | free(out_pdu); | |
3989b143 | 1492 | #endif |
53bd8dbc | 1493 | return ret; |
1b42725f JA |
1494 | } |
1495 | ||
3989b143 JA |
1496 | int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name) |
1497 | { | |
f77d4b73 | 1498 | struct sk_out *sk_out = pthread_getspecific(sk_out_key); |
3989b143 JA |
1499 | struct cmd_iolog_pdu pdu; |
1500 | int i, ret = 0; | |
1501 | ||
ae588852 | 1502 | pdu.nr_samples = cpu_to_le64(log->nr_samples); |
3989b143 | 1503 | pdu.thread_number = cpu_to_le32(td->thread_number); |
3989b143 JA |
1504 | pdu.log_type = cpu_to_le32(log->log_type); |
1505 | pdu.compressed = cpu_to_le32(use_zlib); | |
9bdb9265 JA |
1506 | |
1507 | strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX); | |
1508 | pdu.name[FIO_NET_NAME_MAX - 1] = '\0'; | |
3989b143 JA |
1509 | |
1510 | for (i = 0; i < log->nr_samples; i++) { | |
ae588852 | 1511 | struct io_sample *s = get_sample(log, i); |
3989b143 | 1512 | |
b26317c9 JA |
1513 | s->time = cpu_to_le64(s->time); |
1514 | s->val = cpu_to_le64(s->val); | |
1515 | s->__ddir = cpu_to_le32(s->__ddir); | |
1516 | s->bs = cpu_to_le32(s->bs); | |
ae588852 JA |
1517 | |
1518 | if (log->log_offset) { | |
1519 | struct io_sample_offset *so = (void *) s; | |
1520 | ||
1521 | so->offset = cpu_to_le64(so->offset); | |
1522 | } | |
3989b143 JA |
1523 | } |
1524 | ||
1525 | /* | |
1526 | * Send header first, it's not compressed. | |
1527 | */ | |
f77d4b73 | 1528 | ret = fio_send_cmd_ext_pdu(sk_out->sk, FIO_NET_CMD_IOLOG, &pdu, |
3989b143 JA |
1529 | sizeof(pdu), 0, FIO_NET_CMD_F_MORE); |
1530 | if (ret) | |
1531 | return ret; | |
1532 | ||
1533 | /* | |
1534 | * Now send actual log, compress if we can, otherwise just plain | |
1535 | */ | |
1536 | if (use_zlib) | |
f77d4b73 JA |
1537 | ret = fio_send_iolog_gz(sk_out, &pdu, log); |
1538 | else { | |
1539 | ret = fio_send_cmd_ext_pdu(sk_out->sk, FIO_NET_CMD_IOLOG, | |
1540 | log->log, log->nr_samples * log_entry_sz(log), | |
1541 | 0, 0); | |
1542 | } | |
3989b143 | 1543 | |
f77d4b73 | 1544 | return ret; |
3989b143 JA |
1545 | } |
1546 | ||
2f122b13 | 1547 | void fio_server_send_add_job(struct thread_data *td) |
807f9971 JA |
1548 | { |
1549 | struct cmd_add_job_pdu pdu; | |
807f9971 | 1550 | |
731e30a2 | 1551 | memset(&pdu, 0, sizeof(pdu)); |
2f122b13 JA |
1552 | pdu.thread_number = cpu_to_le32(td->thread_number); |
1553 | pdu.groupid = cpu_to_le32(td->groupid); | |
1554 | convert_thread_options_to_net(&pdu.top, &td->o); | |
807f9971 | 1555 | |
f77d4b73 | 1556 | fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, SK_F_COPY); |
807f9971 JA |
1557 | } |
1558 | ||
122c7725 JA |
1559 | void fio_server_send_start(struct thread_data *td) |
1560 | { | |
f77d4b73 JA |
1561 | struct sk_out *sk_out = pthread_getspecific(sk_out_key); |
1562 | ||
1563 | assert(sk_out->sk != -1); | |
122c7725 | 1564 | |
f77d4b73 | 1565 | fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, 0, SK_F_SIMPLE); |
122c7725 JA |
1566 | } |
1567 | ||
ca09be4b | 1568 | int fio_server_get_verify_state(const char *name, int threadnumber, |
c3546b53 | 1569 | void **datap, int *version) |
ca09be4b JA |
1570 | { |
1571 | struct thread_io_list *s; | |
1572 | struct cmd_sendfile out; | |
1573 | struct cmd_reply *rep; | |
1574 | uint64_t tag; | |
1575 | void *data; | |
1576 | ||
1577 | dprint(FD_NET, "server: request verify state\n"); | |
1578 | ||
1579 | rep = smalloc(sizeof(*rep)); | |
1580 | if (!rep) { | |
1581 | log_err("fio: smalloc pool too small\n"); | |
1582 | return 1; | |
1583 | } | |
1584 | ||
1585 | __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED); | |
1586 | rep->data = NULL; | |
1587 | rep->error = 0; | |
1588 | ||
e499aedc JA |
1589 | verify_state_gen_name((char *) out.path, sizeof(out.path), name, me, |
1590 | threadnumber); | |
ca09be4b | 1591 | tag = (uint64_t) (uintptr_t) rep; |
f77d4b73 | 1592 | fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag, SK_F_COPY); |
ca09be4b JA |
1593 | |
1594 | /* | |
1595 | * Wait for the backend to receive the reply | |
1596 | */ | |
09400a60 | 1597 | if (fio_mutex_down_timeout(&rep->lock, 10000)) { |
ca09be4b JA |
1598 | log_err("fio: timed out waiting for reply\n"); |
1599 | goto fail; | |
1600 | } | |
1601 | ||
1602 | if (rep->error) { | |
1603 | log_err("fio: failure on receiving state file: %s\n", strerror(rep->error)); | |
1604 | fail: | |
1605 | *datap = NULL; | |
1606 | sfree(rep); | |
f77d4b73 | 1607 | fio_net_queue_quit(); |
ca09be4b JA |
1608 | return 1; |
1609 | } | |
1610 | ||
1611 | /* | |
1612 | * The format is verify_state_hdr, then thread_io_list. Verify | |
1613 | * the header, and the thread_io_list checksum | |
1614 | */ | |
1615 | s = rep->data + sizeof(struct verify_state_hdr); | |
c3546b53 | 1616 | if (verify_state_hdr(rep->data, s, version)) |
ca09be4b JA |
1617 | goto fail; |
1618 | ||
1619 | /* | |
1620 | * Don't need the header from now, copy just the thread_io_list | |
1621 | */ | |
1622 | rep->size -= sizeof(struct verify_state_hdr); | |
1623 | data = malloc(rep->size); | |
1624 | memcpy(data, s, rep->size); | |
1625 | *datap = data; | |
1626 | ||
1627 | sfree(rep->data); | |
f5a42524 | 1628 | __fio_mutex_remove(&rep->lock); |
ca09be4b JA |
1629 | sfree(rep); |
1630 | return 0; | |
1631 | } | |
1632 | ||
87aa8f19 | 1633 | static int fio_init_server_ip(void) |
81179eec | 1634 | { |
811826be | 1635 | struct sockaddr *addr; |
67bf9823 | 1636 | socklen_t socklen; |
17e3531a JA |
1637 | char buf[80]; |
1638 | const char *str; | |
87aa8f19 | 1639 | int sk, opt; |
81179eec | 1640 | |
811826be JA |
1641 | if (use_ipv6) |
1642 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
1643 | else | |
1644 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
1645 | ||
81179eec JA |
1646 | if (sk < 0) { |
1647 | log_err("fio: socket: %s\n", strerror(errno)); | |
1648 | return -1; | |
1649 | } | |
1650 | ||
1651 | opt = 1; | |
1f81991e | 1652 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) { |
669e8bf8 | 1653 | log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno)); |
b94cba47 | 1654 | close(sk); |
81179eec JA |
1655 | return -1; |
1656 | } | |
1657 | #ifdef SO_REUSEPORT | |
6eb24791 | 1658 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
669e8bf8 | 1659 | log_err("fio: setsockopt(REUSEPORT): %s\n", strerror(errno)); |
b94cba47 | 1660 | close(sk); |
81179eec JA |
1661 | return -1; |
1662 | } | |
1663 | #endif | |
1664 | ||
811826be | 1665 | if (use_ipv6) { |
17e3531a JA |
1666 | const void *src = &saddr_in6.sin6_addr; |
1667 | ||
811826be JA |
1668 | addr = (struct sockaddr *) &saddr_in6; |
1669 | socklen = sizeof(saddr_in6); | |
1670 | saddr_in6.sin6_family = AF_INET6; | |
17e3531a | 1671 | str = inet_ntop(AF_INET6, src, buf, sizeof(buf)); |
811826be | 1672 | } else { |
17e3531a JA |
1673 | const void *src = &saddr_in.sin_addr; |
1674 | ||
811826be JA |
1675 | addr = (struct sockaddr *) &saddr_in; |
1676 | socklen = sizeof(saddr_in); | |
1677 | saddr_in.sin_family = AF_INET; | |
17e3531a | 1678 | str = inet_ntop(AF_INET, src, buf, sizeof(buf)); |
811826be | 1679 | } |
81179eec | 1680 | |
811826be | 1681 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 1682 | log_err("fio: bind: %s\n", strerror(errno)); |
17e3531a | 1683 | log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str); |
b94cba47 | 1684 | close(sk); |
81179eec JA |
1685 | return -1; |
1686 | } | |
1687 | ||
87aa8f19 JA |
1688 | return sk; |
1689 | } | |
1690 | ||
1691 | static int fio_init_server_sock(void) | |
1692 | { | |
1693 | struct sockaddr_un addr; | |
67bf9823 | 1694 | socklen_t len; |
87aa8f19 JA |
1695 | mode_t mode; |
1696 | int sk; | |
1697 | ||
1698 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
1699 | if (sk < 0) { | |
1700 | log_err("fio: socket: %s\n", strerror(errno)); | |
1701 | return -1; | |
1702 | } | |
1703 | ||
1704 | mode = umask(000); | |
1705 | ||
1706 | memset(&addr, 0, sizeof(addr)); | |
1707 | addr.sun_family = AF_UNIX; | |
a48fddbc | 1708 | strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1); |
87aa8f19 JA |
1709 | |
1710 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
1711 | ||
1712 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
1713 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 1714 | close(sk); |
87aa8f19 JA |
1715 | return -1; |
1716 | } | |
1717 | ||
1718 | umask(mode); | |
1719 | return sk; | |
1720 | } | |
1721 | ||
1722 | static int fio_init_server_connection(void) | |
1723 | { | |
bebe6398 | 1724 | char bind_str[128]; |
87aa8f19 JA |
1725 | int sk; |
1726 | ||
1727 | dprint(FD_NET, "starting server\n"); | |
1728 | ||
1729 | if (!bind_sock) | |
1730 | sk = fio_init_server_ip(); | |
1731 | else | |
1732 | sk = fio_init_server_sock(); | |
1733 | ||
1734 | if (sk < 0) | |
1735 | return sk; | |
1736 | ||
afdcad23 JA |
1737 | memset(bind_str, 0, sizeof(bind_str)); |
1738 | ||
811826be JA |
1739 | if (!bind_sock) { |
1740 | char *p, port[16]; | |
1741 | const void *src; | |
1742 | int af; | |
1743 | ||
1744 | if (use_ipv6) { | |
1745 | af = AF_INET6; | |
1746 | src = &saddr_in6.sin6_addr; | |
1747 | } else { | |
1748 | af = AF_INET; | |
1749 | src = &saddr_in.sin_addr; | |
1750 | } | |
1751 | ||
1752 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
1753 | ||
1754 | sprintf(port, ",%u", fio_net_port); | |
1755 | if (p) | |
1756 | strcat(p, port); | |
1757 | else | |
afdcad23 | 1758 | strncpy(bind_str, port, sizeof(bind_str) - 1); |
811826be | 1759 | } else |
afdcad23 | 1760 | strncpy(bind_str, bind_sock, sizeof(bind_str) - 1); |
bebe6398 JA |
1761 | |
1762 | log_info("fio: server listening on %s\n", bind_str); | |
1763 | ||
89c1707c | 1764 | if (listen(sk, 0) < 0) { |
81179eec | 1765 | log_err("fio: listen: %s\n", strerror(errno)); |
2fd973c9 | 1766 | close(sk); |
81179eec JA |
1767 | return -1; |
1768 | } | |
1769 | ||
87aa8f19 JA |
1770 | return sk; |
1771 | } | |
1772 | ||
3aa3ceeb | 1773 | int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp, |
3ec62ec4 JA |
1774 | struct in6_addr *inp6) |
1775 | ||
1776 | { | |
1777 | int ret = 0; | |
1778 | ||
3aa3ceeb | 1779 | if (ipv6) |
3ec62ec4 JA |
1780 | ret = inet_pton(AF_INET6, host, inp6); |
1781 | else | |
1782 | ret = inet_pton(AF_INET, host, inp); | |
1783 | ||
1784 | if (ret != 1) { | |
479471c4 JA |
1785 | struct addrinfo hints, *res; |
1786 | ||
1787 | memset(&hints, 0, sizeof(hints)); | |
3aa3ceeb | 1788 | hints.ai_family = ipv6 ? AF_INET6 : AF_INET; |
479471c4 | 1789 | hints.ai_socktype = SOCK_STREAM; |
3ec62ec4 | 1790 | |
479471c4 JA |
1791 | ret = getaddrinfo(host, NULL, &hints, &res); |
1792 | if (ret) { | |
1793 | log_err("fio: failed to resolve <%s> (%s)\n", host, | |
1794 | gai_strerror(ret)); | |
3caf43e3 | 1795 | return 1; |
3ec62ec4 JA |
1796 | } |
1797 | ||
3aa3ceeb | 1798 | if (ipv6) |
479471c4 JA |
1799 | memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6)); |
1800 | else | |
1801 | memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp)); | |
1802 | ||
3ec62ec4 | 1803 | ret = 1; |
479471c4 | 1804 | freeaddrinfo(res); |
3ec62ec4 JA |
1805 | } |
1806 | ||
1807 | return !(ret == 1); | |
1808 | } | |
1809 | ||
660a2bfb JA |
1810 | /* |
1811 | * Parse a host/ip/port string. Reads from 'str'. | |
1812 | * | |
1813 | * Outputs: | |
1814 | * | |
1815 | * For IPv4: | |
1816 | * *ptr is the host, *port is the port, inp is the destination. | |
1817 | * For IPv6: | |
1818 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1819 | * For local domain sockets: | |
1820 | * *ptr is the filename, *is_sock is 1. | |
1821 | */ | |
bebe6398 | 1822 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1823 | int *port, struct in_addr *inp, |
1824 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1825 | { |
76867621 JA |
1826 | const char *host = str; |
1827 | char *portp; | |
3ec62ec4 | 1828 | int lport = 0; |
76867621 | 1829 | |
bebe6398 JA |
1830 | *ptr = NULL; |
1831 | *is_sock = 0; | |
6d2cf394 | 1832 | *port = fio_net_port; |
811826be | 1833 | *ipv6 = 0; |
bebe6398 JA |
1834 | |
1835 | if (!strncmp(str, "sock:", 5)) { | |
1836 | *ptr = strdup(str + 5); | |
1837 | *is_sock = 1; | |
76867621 JA |
1838 | |
1839 | return 0; | |
1840 | } | |
1841 | ||
1842 | /* | |
1843 | * Is it ip:<ip or host>:port | |
1844 | */ | |
1845 | if (!strncmp(host, "ip:", 3)) | |
1846 | host += 3; | |
1847 | else if (!strncmp(host, "ip4:", 4)) | |
1848 | host += 4; | |
1849 | else if (!strncmp(host, "ip6:", 4)) { | |
1850 | host += 4; | |
1851 | *ipv6 = 1; | |
1852 | } else if (host[0] == ':') { | |
1853 | /* String is :port */ | |
1854 | host++; | |
1855 | lport = atoi(host); | |
1856 | if (!lport || lport > 65535) { | |
4e0a8fa2 | 1857 | log_err("fio: bad server port %u\n", lport); |
76867621 JA |
1858 | return 1; |
1859 | } | |
1860 | /* no hostname given, we are done */ | |
1861 | *port = lport; | |
1862 | return 0; | |
1863 | } | |
1864 | ||
1865 | /* | |
b96b90c3 | 1866 | * If no port seen yet, check if there's a last ',' at the end |
76867621 JA |
1867 | */ |
1868 | if (!lport) { | |
1869 | portp = strchr(host, ','); | |
1870 | if (portp) { | |
1871 | *portp = '\0'; | |
1872 | portp++; | |
1873 | lport = atoi(portp); | |
bebe6398 | 1874 | if (!lport || lport > 65535) { |
4e0a8fa2 | 1875 | log_err("fio: bad server port %u\n", lport); |
bebe6398 JA |
1876 | return 1; |
1877 | } | |
bebe6398 | 1878 | } |
76867621 | 1879 | } |
bebe6398 | 1880 | |
76867621 JA |
1881 | if (lport) |
1882 | *port = lport; | |
bebe6398 | 1883 | |
76867621 JA |
1884 | if (!strlen(host)) |
1885 | return 0; | |
bebe6398 | 1886 | |
76867621 | 1887 | *ptr = strdup(host); |
811826be | 1888 | |
3aa3ceeb | 1889 | if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) { |
3ec62ec4 JA |
1890 | free(*ptr); |
1891 | *ptr = NULL; | |
1892 | return 1; | |
bebe6398 JA |
1893 | } |
1894 | ||
1895 | if (*port == 0) | |
1896 | *port = fio_net_port; | |
1897 | ||
1898 | return 0; | |
1899 | } | |
1900 | ||
87aa8f19 JA |
1901 | /* |
1902 | * Server arg should be one of: | |
1903 | * | |
1904 | * sock:/path/to/socket | |
1905 | * ip:1.2.3.4 | |
1906 | * 1.2.3.4 | |
1907 | * | |
1908 | * Where sock uses unix domain sockets, and ip binds the server to | |
1909 | * a specific interface. If no arguments are given to the server, it | |
1910 | * uses IP and binds to 0.0.0.0. | |
1911 | * | |
1912 | */ | |
1913 | static int fio_handle_server_arg(void) | |
1914 | { | |
6d2cf394 | 1915 | int port = fio_net_port; |
a7de0a11 | 1916 | int is_sock, ret = 0; |
bebe6398 | 1917 | |
87aa8f19 JA |
1918 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1919 | ||
1920 | if (!fio_server_arg) | |
a7de0a11 | 1921 | goto out; |
87aa8f19 | 1922 | |
4e5b8fb8 | 1923 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1924 | &port, &saddr_in.sin_addr, |
1925 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1926 | |
1927 | if (!is_sock && bind_sock) { | |
1928 | free(bind_sock); | |
1929 | bind_sock = NULL; | |
1930 | } | |
1931 | ||
a7de0a11 | 1932 | out: |
6d2cf394 JA |
1933 | fio_net_port = port; |
1934 | saddr_in.sin_port = htons(port); | |
811826be | 1935 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1936 | return ret; |
87aa8f19 JA |
1937 | } |
1938 | ||
43cdea1d JA |
1939 | static void sig_int(int sig) |
1940 | { | |
1941 | if (bind_sock) | |
1942 | unlink(bind_sock); | |
1943 | } | |
1944 | ||
1945 | static void set_sig_handlers(void) | |
1946 | { | |
1947 | struct sigaction act; | |
1948 | ||
1949 | memset(&act, 0, sizeof(act)); | |
1950 | act.sa_handler = sig_int; | |
1951 | act.sa_flags = SA_RESTART; | |
1952 | sigaction(SIGINT, &act, NULL); | |
1953 | } | |
1954 | ||
87aa8f19 JA |
1955 | static int fio_server(void) |
1956 | { | |
1957 | int sk, ret; | |
1958 | ||
1959 | dprint(FD_NET, "starting server\n"); | |
1960 | ||
1961 | if (fio_handle_server_arg()) | |
1962 | return -1; | |
1963 | ||
1964 | sk = fio_init_server_connection(); | |
1965 | if (sk < 0) | |
1966 | return -1; | |
81179eec | 1967 | |
43cdea1d JA |
1968 | set_sig_handlers(); |
1969 | ||
f77d4b73 JA |
1970 | if (pthread_key_create(&sk_out_key, NULL)) |
1971 | log_err("fio: can't create sk_out backend key\n"); | |
1972 | ||
81179eec | 1973 | ret = accept_loop(sk); |
87aa8f19 | 1974 | |
81179eec | 1975 | close(sk); |
87aa8f19 JA |
1976 | |
1977 | if (fio_server_arg) { | |
1978 | free(fio_server_arg); | |
1979 | fio_server_arg = NULL; | |
1980 | } | |
bebe6398 JA |
1981 | if (bind_sock) |
1982 | free(bind_sock); | |
87aa8f19 | 1983 | |
81179eec JA |
1984 | return ret; |
1985 | } | |
1986 | ||
7b821684 | 1987 | void fio_server_got_signal(int signal) |
9abea48b | 1988 | { |
f77d4b73 JA |
1989 | struct sk_out *sk_out = pthread_getspecific(sk_out_key); |
1990 | ||
1991 | assert(sk_out); | |
1992 | ||
7b821684 | 1993 | if (signal == SIGPIPE) |
f77d4b73 | 1994 | sk_out->sk = -1; |
7b821684 JA |
1995 | else { |
1996 | log_info("\nfio: terminating on signal %d\n", signal); | |
1997 | exit_backend = 1; | |
1998 | } | |
9abea48b JA |
1999 | } |
2000 | ||
13755d94 JA |
2001 | static int check_existing_pidfile(const char *pidfile) |
2002 | { | |
2003 | struct stat sb; | |
2004 | char buf[16]; | |
2005 | pid_t pid; | |
2006 | FILE *f; | |
2007 | ||
2008 | if (stat(pidfile, &sb)) | |
2009 | return 0; | |
2010 | ||
2011 | f = fopen(pidfile, "r"); | |
2012 | if (!f) | |
2013 | return 0; | |
2014 | ||
bfc3b179 | 2015 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
2016 | fclose(f); |
2017 | return 1; | |
2018 | } | |
2019 | fclose(f); | |
2020 | ||
2021 | pid = atoi(buf); | |
2022 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 2023 | return errno != ESRCH; |
13755d94 JA |
2024 | |
2025 | return 1; | |
2026 | } | |
2027 | ||
2028 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
2029 | { |
2030 | FILE *fpid; | |
2031 | ||
2032 | fpid = fopen(pidfile, "w"); | |
2033 | if (!fpid) { | |
2034 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 2035 | return 1; |
402668f3 JA |
2036 | } |
2037 | ||
2038 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
2039 | fclose(fpid); |
2040 | return 0; | |
402668f3 JA |
2041 | } |
2042 | ||
2043 | /* | |
2044 | * If pidfile is specified, background us. | |
2045 | */ | |
2046 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
2047 | { |
2048 | pid_t pid; | |
402668f3 | 2049 | int ret; |
e46d8091 | 2050 | |
93bcfd20 | 2051 | #if defined(WIN32) |
905c78b9 | 2052 | WSADATA wsd; |
3c3ed070 | 2053 | WSAStartup(MAKEWORD(2, 2), &wsd); |
93bcfd20 BC |
2054 | #endif |
2055 | ||
402668f3 | 2056 | if (!pidfile) |
e46d8091 JA |
2057 | return fio_server(); |
2058 | ||
13755d94 JA |
2059 | if (check_existing_pidfile(pidfile)) { |
2060 | log_err("fio: pidfile %s exists and server appears alive\n", | |
2061 | pidfile); | |
b8ba87ac | 2062 | free(pidfile); |
13755d94 JA |
2063 | return -1; |
2064 | } | |
2065 | ||
e46d8091 JA |
2066 | pid = fork(); |
2067 | if (pid < 0) { | |
13755d94 | 2068 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 2069 | free(pidfile); |
c28e8e8c | 2070 | return -1; |
402668f3 | 2071 | } else if (pid) { |
8a1db9a1 | 2072 | ret = write_pid(pid, pidfile); |
b8ba87ac | 2073 | free(pidfile); |
44c8268d | 2074 | _exit(ret); |
402668f3 | 2075 | } |
e46d8091 JA |
2076 | |
2077 | setsid(); | |
13755d94 JA |
2078 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
2079 | log_syslog = 1; | |
e46d8091 JA |
2080 | close(STDIN_FILENO); |
2081 | close(STDOUT_FILENO); | |
2082 | close(STDERR_FILENO); | |
2083 | f_out = NULL; | |
2084 | f_err = NULL; | |
402668f3 JA |
2085 | |
2086 | ret = fio_server(); | |
2087 | ||
2088 | closelog(); | |
2089 | unlink(pidfile); | |
2090 | free(pidfile); | |
2091 | return ret; | |
e46d8091 | 2092 | } |
87aa8f19 | 2093 | |
bebe6398 | 2094 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
2095 | { |
2096 | fio_server_arg = strdup(arg); | |
2097 | } |