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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
1 | #if __linux |
4 | #if __linux |
2 | # define _GNU_SOURCE |
5 | # define _GNU_SOURCE |
3 | #endif |
6 | #endif |
4 | |
7 | |
5 | #define _REENTRANT 1 |
8 | #define _REENTRANT 1 |
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44 | /* used for struct dirent, AIX doesn't provide it */ |
47 | /* used for struct dirent, AIX doesn't provide it */ |
45 | #ifndef NAME_MAX |
48 | #ifndef NAME_MAX |
46 | # define NAME_MAX 4096 |
49 | # define NAME_MAX 4096 |
47 | #endif |
50 | #endif |
48 | |
51 | |
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52 | #ifndef PTHREAD_STACK_MIN |
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53 | /* care for broken platforms, e.g. windows */ |
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54 | # define PTHREAD_STACK_MIN 16384 |
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55 | #endif |
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56 | |
49 | #if __ia64 |
57 | #if __ia64 |
50 | # define STACKSIZE 65536 |
58 | # define STACKSIZE 65536 |
51 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
59 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
52 | # define STACKSIZE PTHREAD_STACK_MIN |
60 | # define STACKSIZE PTHREAD_STACK_MIN |
53 | #else |
61 | #else |
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56 | |
64 | |
57 | /* buffer size for various temporary buffers */ |
65 | /* buffer size for various temporary buffers */ |
58 | #define AIO_BUFSIZE 65536 |
66 | #define AIO_BUFSIZE 65536 |
59 | |
67 | |
60 | #define dBUF \ |
68 | #define dBUF \ |
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69 | char *aio_buf; \ |
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70 | LOCK (wrklock); \ |
61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
71 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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72 | UNLOCK (wrklock); \ |
62 | if (!aio_buf) \ |
73 | if (!aio_buf) \ |
63 | return -1; |
74 | return -1; |
64 | |
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65 | #define fBUF free (aio_buf) |
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66 | |
75 | |
67 | enum { |
76 | enum { |
68 | REQ_QUIT, |
77 | REQ_QUIT, |
69 | REQ_OPEN, REQ_CLOSE, |
78 | REQ_OPEN, REQ_CLOSE, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
79 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
124 | |
133 | |
125 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
134 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
126 | |
135 | |
127 | static int started, wanted; |
136 | static int started, wanted; |
128 | static volatile int nreqs; |
137 | static volatile int nreqs; |
129 | static int max_outstanding = 1<<30; |
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130 | static int respipe [2]; |
138 | static int respipe [2]; |
131 | |
139 | |
132 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
140 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
133 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
141 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
134 | #else |
142 | #else |
135 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
143 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
136 | #endif |
144 | #endif |
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145 | |
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146 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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147 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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148 | |
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149 | /* worker threasd management */ |
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150 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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151 | |
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152 | typedef struct worker { |
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153 | /* locked by wrklock */ |
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154 | struct worker *prev, *next; |
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155 | |
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156 | pthread_t tid; |
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157 | |
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158 | /* locked by reslock, reqlock or wrklock */ |
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159 | aio_req req; /* currently processed request */ |
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160 | void *dbuf; |
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161 | DIR *dirp; |
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162 | } worker; |
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163 | |
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164 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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165 | |
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166 | static void worker_clear (worker *wrk) |
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167 | { |
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168 | if (wrk->dirp) |
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169 | { |
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170 | closedir (wrk->dirp); |
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171 | wrk->dirp = 0; |
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172 | } |
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173 | |
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174 | if (wrk->dbuf) |
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175 | { |
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176 | free (wrk->dbuf); |
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177 | wrk->dbuf = 0; |
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178 | } |
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179 | } |
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180 | |
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181 | static void worker_free (worker *wrk) |
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182 | { |
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183 | wrk->next->prev = wrk->prev; |
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184 | wrk->prev->next = wrk->next; |
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185 | |
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186 | free (wrk); |
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187 | } |
137 | |
188 | |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
189 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
190 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
191 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
141 | |
192 | |
… | |
… | |
191 | } |
242 | } |
192 | |
243 | |
193 | abort (); |
244 | abort (); |
194 | } |
245 | } |
195 | |
246 | |
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247 | static int poll_cb (); |
196 | static void req_invoke (aio_req req); |
248 | static void req_invoke (aio_req req); |
197 | static void req_free (aio_req req); |
249 | static void req_free (aio_req req); |
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250 | static void req_cancel (aio_req req); |
198 | |
251 | |
199 | /* must be called at most once */ |
252 | /* must be called at most once */ |
200 | static SV *req_sv (aio_req req, const char *klass) |
253 | static SV *req_sv (aio_req req, const char *klass) |
201 | { |
254 | { |
202 | if (!req->self) |
255 | if (!req->self) |
… | |
… | |
271 | fd_set rfd; |
324 | fd_set rfd; |
272 | |
325 | |
273 | while (nreqs) |
326 | while (nreqs) |
274 | { |
327 | { |
275 | int size; |
328 | int size; |
276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
329 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
277 | pthread_mutex_lock (&reslock); |
330 | LOCK (reslock); |
278 | #endif |
331 | #endif |
279 | size = res_queue.size; |
332 | size = res_queue.size; |
280 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
333 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
281 | pthread_mutex_unlock (&reslock); |
334 | UNLOCK (reslock); |
282 | #endif |
335 | #endif |
283 | |
336 | |
284 | if (size) |
337 | if (size) |
285 | return; |
338 | return; |
286 | |
339 | |
… | |
… | |
310 | { |
363 | { |
311 | SV *rv = &PL_sv_undef; |
364 | SV *rv = &PL_sv_undef; |
312 | |
365 | |
313 | if (req->result >= 0) |
366 | if (req->result >= 0) |
314 | { |
367 | { |
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368 | int i; |
315 | char *buf = req->data2ptr; |
369 | char *buf = req->data2ptr; |
316 | AV *av = newAV (); |
370 | AV *av = newAV (); |
317 | |
371 | |
318 | while (req->result) |
372 | av_extend (av, req->result - 1); |
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373 | |
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374 | for (i = 0; i < req->result; ++i) |
319 | { |
375 | { |
320 | SV *sv = newSVpv (buf, 0); |
376 | SV *sv = newSVpv (buf, 0); |
321 | |
377 | |
322 | av_push (av, sv); |
378 | av_store (av, i, sv); |
323 | buf += SvCUR (sv) + 1; |
379 | buf += SvCUR (sv) + 1; |
324 | req->result--; |
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325 | } |
380 | } |
326 | |
381 | |
327 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
382 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
328 | } |
383 | } |
329 | |
384 | |
… | |
… | |
413 | SvREFCNT_dec (req->fh); |
468 | SvREFCNT_dec (req->fh); |
414 | SvREFCNT_dec (req->fh2); |
469 | SvREFCNT_dec (req->fh2); |
415 | SvREFCNT_dec (req->callback); |
470 | SvREFCNT_dec (req->callback); |
416 | Safefree (req->statdata); |
471 | Safefree (req->statdata); |
417 | |
472 | |
418 | if (req->type == REQ_READDIR && req->result >= 0) |
473 | if (req->type == REQ_READDIR) |
419 | free (req->data2ptr); |
474 | free (req->data2ptr); |
420 | |
475 | |
421 | Safefree (req); |
476 | Safefree (req); |
422 | } |
477 | } |
423 | |
478 | |
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479 | static void req_cancel_subs (aio_req grp) |
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480 | { |
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481 | aio_req sub; |
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482 | |
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483 | if (grp->type != REQ_GROUP) |
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484 | return; |
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485 | |
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486 | SvREFCNT_dec (grp->fh2); |
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487 | grp->fh2 = 0; |
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488 | |
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489 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
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490 | req_cancel (sub); |
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491 | } |
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492 | |
424 | static void req_cancel (aio_req req) |
493 | static void req_cancel (aio_req req) |
425 | { |
494 | { |
426 | req->flags |= FLAG_CANCELLED; |
495 | req->flags |= FLAG_CANCELLED; |
427 | |
496 | |
428 | if (req->type == REQ_GROUP) |
497 | req_cancel_subs (req); |
429 | { |
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430 | aio_req sub; |
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431 | |
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432 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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433 | req_cancel (sub); |
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434 | } |
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435 | } |
498 | } |
436 | |
499 | |
437 | static int poll_cb () |
500 | static int poll_cb () |
438 | { |
501 | { |
439 | dSP; |
502 | dSP; |
… | |
… | |
441 | int do_croak = 0; |
504 | int do_croak = 0; |
442 | aio_req req; |
505 | aio_req req; |
443 | |
506 | |
444 | for (;;) |
507 | for (;;) |
445 | { |
508 | { |
446 | pthread_mutex_lock (&reslock); |
509 | LOCK (reslock); |
447 | req = reqq_shift (&res_queue); |
510 | req = reqq_shift (&res_queue); |
448 | |
511 | |
449 | if (req) |
512 | if (req) |
450 | { |
513 | { |
451 | if (!res_queue.size) |
514 | if (!res_queue.size) |
… | |
… | |
455 | while (read (respipe [0], buf, 32) == 32) |
518 | while (read (respipe [0], buf, 32) == 32) |
456 | ; |
519 | ; |
457 | } |
520 | } |
458 | } |
521 | } |
459 | |
522 | |
460 | pthread_mutex_unlock (&reslock); |
523 | UNLOCK (reslock); |
461 | |
524 | |
462 | if (!req) |
525 | if (!req) |
463 | break; |
526 | break; |
464 | |
527 | |
465 | --nreqs; |
528 | --nreqs; |
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… | |
500 | static void *aio_proc(void *arg); |
563 | static void *aio_proc(void *arg); |
501 | |
564 | |
502 | static void start_thread (void) |
565 | static void start_thread (void) |
503 | { |
566 | { |
504 | sigset_t fullsigset, oldsigset; |
567 | sigset_t fullsigset, oldsigset; |
505 | pthread_t tid; |
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506 | pthread_attr_t attr; |
568 | pthread_attr_t attr; |
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569 | |
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570 | worker *wrk = calloc (1, sizeof (worker)); |
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571 | |
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572 | if (!wrk) |
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573 | croak ("unable to allocate worker thread data"); |
507 | |
574 | |
508 | pthread_attr_init (&attr); |
575 | pthread_attr_init (&attr); |
509 | pthread_attr_setstacksize (&attr, STACKSIZE); |
576 | pthread_attr_setstacksize (&attr, STACKSIZE); |
510 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
577 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
511 | |
578 | |
512 | sigfillset (&fullsigset); |
579 | sigfillset (&fullsigset); |
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580 | |
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581 | LOCK (wrklock); |
513 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
582 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
514 | |
583 | |
515 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
584 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
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585 | { |
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586 | wrk->prev = &wrk_first; |
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587 | wrk->next = wrk_first.next; |
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588 | wrk_first.next->prev = wrk; |
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589 | wrk_first.next = wrk; |
516 | started++; |
590 | started++; |
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591 | } |
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592 | else |
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593 | free (wrk); |
517 | |
594 | |
518 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
595 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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596 | UNLOCK (wrklock); |
519 | } |
597 | } |
520 | |
598 | |
521 | static void req_send (aio_req req) |
599 | static void req_send (aio_req req) |
522 | { |
600 | { |
523 | while (started < wanted && nreqs >= started) |
601 | while (started < wanted && nreqs >= started) |
524 | start_thread (); |
602 | start_thread (); |
525 | |
603 | |
526 | ++nreqs; |
604 | ++nreqs; |
527 | |
605 | |
528 | pthread_mutex_lock (&reqlock); |
606 | LOCK (reqlock); |
529 | reqq_push (&req_queue, req); |
607 | reqq_push (&req_queue, req); |
530 | pthread_cond_signal (&reqwait); |
608 | pthread_cond_signal (&reqwait); |
531 | pthread_mutex_unlock (&reqlock); |
609 | UNLOCK (reqlock); |
532 | |
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533 | if (nreqs > max_outstanding) |
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534 | for (;;) |
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535 | { |
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536 | poll_cb (); |
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537 | |
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538 | if (nreqs <= max_outstanding) |
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539 | break; |
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540 | |
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541 | poll_wait (); |
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542 | } |
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543 | } |
610 | } |
544 | |
611 | |
545 | static void end_thread (void) |
612 | static void end_thread (void) |
546 | { |
613 | { |
547 | aio_req req; |
614 | aio_req req; |
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609 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
676 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
610 | { |
677 | { |
611 | ssize_t res; |
678 | ssize_t res; |
612 | off_t ooffset; |
679 | off_t ooffset; |
613 | |
680 | |
614 | pthread_mutex_lock (&preadwritelock); |
681 | LOCK (preadwritelock); |
615 | ooffset = lseek (fd, 0, SEEK_CUR); |
682 | ooffset = lseek (fd, 0, SEEK_CUR); |
616 | lseek (fd, offset, SEEK_SET); |
683 | lseek (fd, offset, SEEK_SET); |
617 | res = read (fd, buf, count); |
684 | res = read (fd, buf, count); |
618 | lseek (fd, ooffset, SEEK_SET); |
685 | lseek (fd, ooffset, SEEK_SET); |
619 | pthread_mutex_unlock (&preadwritelock); |
686 | UNLOCK (preadwritelock); |
620 | |
687 | |
621 | return res; |
688 | return res; |
622 | } |
689 | } |
623 | |
690 | |
624 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
691 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
625 | { |
692 | { |
626 | ssize_t res; |
693 | ssize_t res; |
627 | off_t ooffset; |
694 | off_t ooffset; |
628 | |
695 | |
629 | pthread_mutex_lock (&preadwritelock); |
696 | LOCK (preadwritelock); |
630 | ooffset = lseek (fd, 0, SEEK_CUR); |
697 | ooffset = lseek (fd, 0, SEEK_CUR); |
631 | lseek (fd, offset, SEEK_SET); |
698 | lseek (fd, offset, SEEK_SET); |
632 | res = write (fd, buf, count); |
699 | res = write (fd, buf, count); |
633 | lseek (fd, offset, SEEK_SET); |
700 | lseek (fd, offset, SEEK_SET); |
634 | pthread_mutex_unlock (&preadwritelock); |
701 | UNLOCK (preadwritelock); |
635 | |
702 | |
636 | return res; |
703 | return res; |
637 | } |
704 | } |
638 | #endif |
705 | #endif |
639 | |
706 | |
640 | #if !HAVE_FDATASYNC |
707 | #if !HAVE_FDATASYNC |
641 | # define fdatasync fsync |
708 | # define fdatasync fsync |
642 | #endif |
709 | #endif |
643 | |
710 | |
644 | #if !HAVE_READAHEAD |
711 | #if !HAVE_READAHEAD |
645 | # define readahead aio_readahead |
712 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
646 | |
713 | |
647 | static ssize_t readahead (int fd, off_t offset, size_t count) |
714 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
648 | { |
715 | { |
649 | dBUF; |
716 | dBUF; |
650 | |
717 | |
651 | while (count > 0) |
718 | while (count > 0) |
652 | { |
719 | { |
… | |
… | |
655 | pread (fd, aio_buf, len, offset); |
722 | pread (fd, aio_buf, len, offset); |
656 | offset += len; |
723 | offset += len; |
657 | count -= len; |
724 | count -= len; |
658 | } |
725 | } |
659 | |
726 | |
660 | fBUF; |
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661 | |
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662 | errno = 0; |
727 | errno = 0; |
663 | } |
728 | } |
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729 | |
664 | #endif |
730 | #endif |
665 | |
731 | |
666 | #if !HAVE_READDIR_R |
732 | #if !HAVE_READDIR_R |
667 | # define readdir_r aio_readdir_r |
733 | # define readdir_r aio_readdir_r |
668 | |
734 | |
… | |
… | |
671 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
737 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
672 | { |
738 | { |
673 | struct dirent *e; |
739 | struct dirent *e; |
674 | int errorno; |
740 | int errorno; |
675 | |
741 | |
676 | pthread_mutex_lock (&readdirlock); |
742 | LOCK (readdirlock); |
677 | |
743 | |
678 | e = readdir (dirp); |
744 | e = readdir (dirp); |
679 | errorno = errno; |
745 | errorno = errno; |
680 | |
746 | |
681 | if (e) |
747 | if (e) |
… | |
… | |
684 | strcpy (ent->d_name, e->d_name); |
750 | strcpy (ent->d_name, e->d_name); |
685 | } |
751 | } |
686 | else |
752 | else |
687 | *res = 0; |
753 | *res = 0; |
688 | |
754 | |
689 | pthread_mutex_unlock (&readdirlock); |
755 | UNLOCK (readdirlock); |
690 | |
756 | |
691 | errno = errorno; |
757 | errno = errorno; |
692 | return e ? 0 : -1; |
758 | return e ? 0 : -1; |
693 | } |
759 | } |
694 | #endif |
760 | #endif |
695 | |
761 | |
696 | /* sendfile always needs emulation */ |
762 | /* sendfile always needs emulation */ |
697 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
763 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
698 | { |
764 | { |
699 | ssize_t res; |
765 | ssize_t res; |
700 | |
766 | |
701 | if (!count) |
767 | if (!count) |
702 | return 0; |
768 | return 0; |
… | |
… | |
779 | |
845 | |
780 | offset += cnt; |
846 | offset += cnt; |
781 | res += cnt; |
847 | res += cnt; |
782 | count -= cnt; |
848 | count -= cnt; |
783 | } |
849 | } |
784 | |
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785 | fBUF; |
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786 | } |
850 | } |
787 | |
851 | |
788 | return res; |
852 | return res; |
789 | } |
853 | } |
790 | |
854 | |
791 | /* read a full directory */ |
855 | /* read a full directory */ |
792 | static int scandir_ (const char *path, void **namesp) |
856 | static void scandir_ (aio_req req, worker *self) |
793 | { |
857 | { |
794 | DIR *dirp; |
858 | DIR *dirp; |
795 | union |
859 | union |
796 | { |
860 | { |
797 | struct dirent d; |
861 | struct dirent d; |
… | |
… | |
802 | int memlen = 4096; |
866 | int memlen = 4096; |
803 | int memofs = 0; |
867 | int memofs = 0; |
804 | int res = 0; |
868 | int res = 0; |
805 | int errorno; |
869 | int errorno; |
806 | |
870 | |
807 | dirp = opendir (path); |
871 | LOCK (wrklock); |
808 | if (!dirp) |
872 | self->dirp = dirp = opendir (req->dataptr); |
809 | return -1; |
|
|
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
873 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
874 | UNLOCK (wrklock); |
|
|
875 | |
812 | names = malloc (memlen); |
876 | req->data2ptr = names = malloc (memlen); |
813 | |
877 | |
814 | if (u && names) |
878 | if (dirp && u && names) |
815 | for (;;) |
879 | for (;;) |
816 | { |
880 | { |
817 | errno = 0; |
881 | errno = 0; |
818 | readdir_r (dirp, &u->d, &entp); |
882 | readdir_r (dirp, &u->d, &entp); |
819 | |
883 | |
… | |
… | |
829 | res++; |
893 | res++; |
830 | |
894 | |
831 | while (memofs + len > memlen) |
895 | while (memofs + len > memlen) |
832 | { |
896 | { |
833 | memlen *= 2; |
897 | memlen *= 2; |
|
|
898 | LOCK (wrklock); |
834 | names = realloc (names, memlen); |
899 | req->data2ptr = names = realloc (names, memlen); |
|
|
900 | UNLOCK (wrklock); |
|
|
901 | |
835 | if (!names) |
902 | if (!names) |
836 | break; |
903 | break; |
837 | } |
904 | } |
838 | |
905 | |
839 | memcpy (names + memofs, name, len); |
906 | memcpy (names + memofs, name, len); |
840 | memofs += len; |
907 | memofs += len; |
841 | } |
908 | } |
842 | } |
909 | } |
843 | |
910 | |
844 | errorno = errno; |
|
|
845 | free (u); |
|
|
846 | closedir (dirp); |
|
|
847 | |
|
|
848 | if (errorno) |
911 | if (errno) |
849 | { |
|
|
850 | free (names); |
|
|
851 | errno = errorno; |
|
|
852 | res = -1; |
912 | res = -1; |
853 | } |
913 | |
854 | |
914 | req->result = res; |
855 | *namesp = (void *)names; |
|
|
856 | return res; |
|
|
857 | } |
915 | } |
858 | |
916 | |
859 | /*****************************************************************************/ |
917 | /*****************************************************************************/ |
860 | |
918 | |
861 | static void *aio_proc (void *thr_arg) |
919 | static void *aio_proc (void *thr_arg) |
862 | { |
920 | { |
863 | aio_req req; |
921 | aio_req req; |
864 | int type; |
922 | int type; |
|
|
923 | worker *self = (worker *)thr_arg; |
865 | |
924 | |
866 | do |
925 | do |
867 | { |
926 | { |
868 | pthread_mutex_lock (&reqlock); |
927 | LOCK (reqlock); |
869 | |
928 | |
870 | for (;;) |
929 | for (;;) |
871 | { |
930 | { |
872 | req = reqq_shift (&req_queue); |
931 | self->req = req = reqq_shift (&req_queue); |
873 | |
932 | |
874 | if (req) |
933 | if (req) |
875 | break; |
934 | break; |
876 | |
935 | |
877 | pthread_cond_wait (&reqwait, &reqlock); |
936 | pthread_cond_wait (&reqwait, &reqlock); |
878 | } |
937 | } |
879 | |
938 | |
880 | pthread_mutex_unlock (&reqlock); |
939 | UNLOCK (reqlock); |
881 | |
940 | |
882 | errno = 0; /* strictly unnecessary */ |
941 | errno = 0; /* strictly unnecessary */ |
883 | type = req->type; /* remember type for QUIT check */ |
942 | type = req->type; /* remember type for QUIT check */ |
884 | |
943 | |
885 | if (!(req->flags & FLAG_CANCELLED)) |
944 | if (!(req->flags & FLAG_CANCELLED)) |
… | |
… | |
887 | { |
946 | { |
888 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
947 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
889 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
948 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
890 | |
949 | |
891 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
950 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
892 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
951 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
893 | |
952 | |
894 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
953 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
895 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
954 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
896 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
955 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
897 | |
956 | |
… | |
… | |
903 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
904 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
905 | |
964 | |
906 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
907 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
908 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
909 | |
968 | |
910 | case REQ_BUSY: |
969 | case REQ_BUSY: |
911 | { |
970 | { |
912 | struct timeval tv; |
971 | struct timeval tv; |
913 | |
972 | |
… | |
… | |
927 | break; |
986 | break; |
928 | } |
987 | } |
929 | |
988 | |
930 | req->errorno = errno; |
989 | req->errorno = errno; |
931 | |
990 | |
932 | pthread_mutex_lock (&reslock); |
991 | LOCK (reslock); |
933 | |
992 | |
934 | if (!reqq_push (&res_queue, req)) |
993 | if (!reqq_push (&res_queue, req)) |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
936 | write (respipe [1], &respipe, 1); |
995 | write (respipe [1], &respipe, 1); |
937 | |
996 | |
938 | pthread_mutex_unlock (&reslock); |
997 | self->req = 0; |
|
|
998 | worker_clear (self); |
|
|
999 | |
|
|
1000 | UNLOCK (reslock); |
939 | } |
1001 | } |
940 | while (type != REQ_QUIT); |
1002 | while (type != REQ_QUIT); |
941 | |
1003 | |
|
|
1004 | LOCK (wrklock); |
|
|
1005 | worker_free (self); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
942 | return 0; |
1008 | return 0; |
943 | } |
1009 | } |
944 | |
1010 | |
945 | /*****************************************************************************/ |
1011 | /*****************************************************************************/ |
946 | |
1012 | |
947 | static void atfork_prepare (void) |
1013 | static void atfork_prepare (void) |
948 | { |
1014 | { |
949 | pthread_mutex_lock (&reqlock); |
1015 | LOCK (wrklock); |
950 | pthread_mutex_lock (&reslock); |
1016 | LOCK (reqlock); |
|
|
1017 | LOCK (reslock); |
951 | #if !HAVE_PREADWRITE |
1018 | #if !HAVE_PREADWRITE |
952 | pthread_mutex_lock (&preadwritelock); |
1019 | LOCK (preadwritelock); |
953 | #endif |
1020 | #endif |
954 | #if !HAVE_READDIR_R |
1021 | #if !HAVE_READDIR_R |
955 | pthread_mutex_lock (&readdirlock); |
1022 | LOCK (readdirlock); |
956 | #endif |
1023 | #endif |
957 | } |
1024 | } |
958 | |
1025 | |
959 | static void atfork_parent (void) |
1026 | static void atfork_parent (void) |
960 | { |
1027 | { |
961 | #if !HAVE_READDIR_R |
1028 | #if !HAVE_READDIR_R |
962 | pthread_mutex_unlock (&readdirlock); |
1029 | UNLOCK (readdirlock); |
963 | #endif |
1030 | #endif |
964 | #if !HAVE_PREADWRITE |
1031 | #if !HAVE_PREADWRITE |
965 | pthread_mutex_unlock (&preadwritelock); |
1032 | UNLOCK (preadwritelock); |
966 | #endif |
1033 | #endif |
967 | pthread_mutex_unlock (&reslock); |
1034 | UNLOCK (reslock); |
968 | pthread_mutex_unlock (&reqlock); |
1035 | UNLOCK (reqlock); |
|
|
1036 | UNLOCK (wrklock); |
969 | } |
1037 | } |
970 | |
1038 | |
971 | static void atfork_child (void) |
1039 | static void atfork_child (void) |
972 | { |
1040 | { |
973 | aio_req prv; |
1041 | aio_req prv; |
974 | |
|
|
975 | started = 0; |
|
|
976 | |
1042 | |
977 | while (prv = reqq_shift (&req_queue)) |
1043 | while (prv = reqq_shift (&req_queue)) |
978 | req_free (prv); |
1044 | req_free (prv); |
979 | |
1045 | |
980 | while (prv = reqq_shift (&res_queue)) |
1046 | while (prv = reqq_shift (&res_queue)) |
981 | req_free (prv); |
1047 | req_free (prv); |
982 | |
1048 | |
|
|
1049 | while (wrk_first.next != &wrk_first) |
|
|
1050 | { |
|
|
1051 | worker *wrk = wrk_first.next; |
|
|
1052 | |
|
|
1053 | if (wrk->req) |
|
|
1054 | req_free (wrk->req); |
|
|
1055 | |
|
|
1056 | worker_clear (wrk); |
|
|
1057 | worker_free (wrk); |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | started = 0; |
|
|
1061 | nreqs = 0; |
|
|
1062 | |
983 | close (respipe [0]); |
1063 | close (respipe [0]); |
984 | close (respipe [1]); |
1064 | close (respipe [1]); |
985 | create_pipe (); |
1065 | create_pipe (); |
986 | |
1066 | |
987 | atfork_parent (); |
1067 | atfork_parent (); |
… | |
… | |
1031 | void |
1111 | void |
1032 | max_parallel (nthreads) |
1112 | max_parallel (nthreads) |
1033 | int nthreads |
1113 | int nthreads |
1034 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
1035 | |
1115 | |
1036 | int |
|
|
1037 | max_outstanding (nreqs) |
|
|
1038 | int nreqs |
|
|
1039 | PROTOTYPE: $ |
|
|
1040 | CODE: |
|
|
1041 | RETVAL = max_outstanding; |
|
|
1042 | max_outstanding = nreqs; |
|
|
1043 | |
|
|
1044 | void |
1116 | void |
1045 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1046 | SV * pathname |
1118 | SV * pathname |
1047 | int flags |
1119 | int flags |
1048 | int mode |
1120 | int mode |
… | |
… | |
1419 | } |
1491 | } |
1420 | } |
1492 | } |
1421 | } |
1493 | } |
1422 | |
1494 | |
1423 | void |
1495 | void |
|
|
1496 | cancel_subs (aio_req_ornot req) |
|
|
1497 | CODE: |
|
|
1498 | req_cancel_subs (req); |
|
|
1499 | |
|
|
1500 | void |
1424 | result (aio_req grp, ...) |
1501 | result (aio_req grp, ...) |
1425 | CODE: |
1502 | CODE: |
1426 | { |
1503 | { |
1427 | int i; |
1504 | int i; |
1428 | AV *av = newAV (); |
1505 | AV *av = newAV (); |