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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 |
… | |
… | |
56 | |
59 | |
57 | /* buffer size for various temporary buffers */ |
60 | /* buffer size for various temporary buffers */ |
58 | #define AIO_BUFSIZE 65536 |
61 | #define AIO_BUFSIZE 65536 |
59 | |
62 | |
60 | #define dBUF \ |
63 | #define dBUF \ |
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64 | char *aio_buf; \ |
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65 | LOCK (wrklock); \ |
61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
66 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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67 | UNLOCK (wrklock); \ |
62 | if (!aio_buf) \ |
68 | if (!aio_buf) \ |
63 | return -1; |
69 | return -1; |
64 | |
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65 | #define fBUF free (aio_buf) |
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66 | |
70 | |
67 | enum { |
71 | enum { |
68 | REQ_QUIT, |
72 | REQ_QUIT, |
69 | REQ_OPEN, REQ_CLOSE, |
73 | REQ_OPEN, REQ_CLOSE, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
74 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
133 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
137 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
134 | #else |
138 | #else |
135 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
139 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
136 | #endif |
140 | #endif |
137 | |
141 | |
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142 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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143 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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144 | |
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145 | /* worker threasd management */ |
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146 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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147 | |
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148 | typedef struct worker { |
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149 | /* locked by wrklock */ |
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150 | struct worker *prev, *next; |
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151 | |
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152 | pthread_t tid; |
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153 | |
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154 | /* locked by reslock, reqlock or wrklock */ |
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155 | aio_req req; /* currently processed request */ |
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156 | void *dbuf; |
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157 | DIR *dirp; |
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158 | } worker; |
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159 | |
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160 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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161 | |
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162 | static void worker_clear (worker *wrk) |
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163 | { |
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164 | if (wrk->dirp) |
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165 | { |
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166 | closedir (wrk->dirp); |
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167 | wrk->dirp = 0; |
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168 | } |
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169 | |
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170 | if (wrk->dbuf) |
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171 | { |
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172 | free (wrk->dbuf); |
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173 | wrk->dbuf = 0; |
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174 | } |
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175 | } |
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176 | |
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177 | static void worker_free (worker *wrk) |
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178 | { |
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179 | wrk->next->prev = wrk->prev; |
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180 | wrk->prev->next = wrk->next; |
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181 | |
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182 | free (wrk); |
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183 | } |
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184 | |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
185 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
186 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
187 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
141 | |
188 | |
142 | /* |
189 | /* |
… | |
… | |
271 | fd_set rfd; |
318 | fd_set rfd; |
272 | |
319 | |
273 | while (nreqs) |
320 | while (nreqs) |
274 | { |
321 | { |
275 | int size; |
322 | int size; |
276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
323 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
277 | pthread_mutex_lock (&reslock); |
324 | LOCK (reslock); |
278 | #endif |
325 | #endif |
279 | size = res_queue.size; |
326 | size = res_queue.size; |
280 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
327 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
281 | pthread_mutex_unlock (&reslock); |
328 | UNLOCK (reslock); |
282 | #endif |
329 | #endif |
283 | |
330 | |
284 | if (size) |
331 | if (size) |
285 | return; |
332 | return; |
286 | |
333 | |
… | |
… | |
310 | { |
357 | { |
311 | SV *rv = &PL_sv_undef; |
358 | SV *rv = &PL_sv_undef; |
312 | |
359 | |
313 | if (req->result >= 0) |
360 | if (req->result >= 0) |
314 | { |
361 | { |
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362 | int i; |
315 | char *buf = req->data2ptr; |
363 | char *buf = req->data2ptr; |
316 | AV *av = newAV (); |
364 | AV *av = newAV (); |
317 | |
365 | |
318 | while (req->result) |
366 | av_extend (av, req->result - 1); |
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367 | |
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368 | for (i = 0; i < req->result; ++i) |
319 | { |
369 | { |
320 | SV *sv = newSVpv (buf, 0); |
370 | SV *sv = newSVpv (buf, 0); |
321 | |
371 | |
322 | av_push (av, sv); |
372 | av_store (av, i, sv); |
323 | buf += SvCUR (sv) + 1; |
373 | buf += SvCUR (sv) + 1; |
324 | req->result--; |
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325 | } |
374 | } |
326 | |
375 | |
327 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
376 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
328 | } |
377 | } |
329 | |
378 | |
… | |
… | |
413 | SvREFCNT_dec (req->fh); |
462 | SvREFCNT_dec (req->fh); |
414 | SvREFCNT_dec (req->fh2); |
463 | SvREFCNT_dec (req->fh2); |
415 | SvREFCNT_dec (req->callback); |
464 | SvREFCNT_dec (req->callback); |
416 | Safefree (req->statdata); |
465 | Safefree (req->statdata); |
417 | |
466 | |
418 | if (req->type == REQ_READDIR && req->result >= 0) |
467 | if (req->type == REQ_READDIR) |
419 | free (req->data2ptr); |
468 | free (req->data2ptr); |
420 | |
469 | |
421 | Safefree (req); |
470 | Safefree (req); |
422 | } |
471 | } |
423 | |
472 | |
… | |
… | |
441 | int do_croak = 0; |
490 | int do_croak = 0; |
442 | aio_req req; |
491 | aio_req req; |
443 | |
492 | |
444 | for (;;) |
493 | for (;;) |
445 | { |
494 | { |
446 | pthread_mutex_lock (&reslock); |
495 | LOCK (reslock); |
447 | req = reqq_shift (&res_queue); |
496 | req = reqq_shift (&res_queue); |
448 | |
497 | |
449 | if (req) |
498 | if (req) |
450 | { |
499 | { |
451 | if (!res_queue.size) |
500 | if (!res_queue.size) |
… | |
… | |
455 | while (read (respipe [0], buf, 32) == 32) |
504 | while (read (respipe [0], buf, 32) == 32) |
456 | ; |
505 | ; |
457 | } |
506 | } |
458 | } |
507 | } |
459 | |
508 | |
460 | pthread_mutex_unlock (&reslock); |
509 | UNLOCK (reslock); |
461 | |
510 | |
462 | if (!req) |
511 | if (!req) |
463 | break; |
512 | break; |
464 | |
513 | |
465 | --nreqs; |
514 | --nreqs; |
… | |
… | |
499 | |
548 | |
500 | static void *aio_proc(void *arg); |
549 | static void *aio_proc(void *arg); |
501 | |
550 | |
502 | static void start_thread (void) |
551 | static void start_thread (void) |
503 | { |
552 | { |
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553 | worker *wrk = calloc (1, sizeof (worker)); |
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554 | |
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555 | if (!wrk) |
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556 | croak ("unable to allocate worker thread data"); |
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557 | |
504 | sigset_t fullsigset, oldsigset; |
558 | sigset_t fullsigset, oldsigset; |
505 | pthread_t tid; |
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506 | pthread_attr_t attr; |
559 | pthread_attr_t attr; |
507 | |
560 | |
508 | pthread_attr_init (&attr); |
561 | pthread_attr_init (&attr); |
509 | pthread_attr_setstacksize (&attr, STACKSIZE); |
562 | pthread_attr_setstacksize (&attr, STACKSIZE); |
510 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
563 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
511 | |
564 | |
512 | sigfillset (&fullsigset); |
565 | sigfillset (&fullsigset); |
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566 | |
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567 | LOCK (wrklock); |
513 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
568 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
514 | |
569 | |
515 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
570 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
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571 | { |
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572 | wrk->prev = &wrk_first; |
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573 | wrk->next = wrk_first.next; |
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574 | wrk_first.next->prev = wrk; |
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575 | wrk_first.next = wrk; |
516 | started++; |
576 | started++; |
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577 | } |
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578 | else |
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579 | free (wrk); |
517 | |
580 | |
518 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
581 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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582 | UNLOCK (wrklock); |
519 | } |
583 | } |
520 | |
584 | |
521 | static void req_send (aio_req req) |
585 | static void req_send (aio_req req) |
522 | { |
586 | { |
523 | while (started < wanted && nreqs >= started) |
587 | while (started < wanted && nreqs >= started) |
524 | start_thread (); |
588 | start_thread (); |
525 | |
589 | |
526 | ++nreqs; |
590 | ++nreqs; |
527 | |
591 | |
528 | pthread_mutex_lock (&reqlock); |
592 | LOCK (reqlock); |
529 | reqq_push (&req_queue, req); |
593 | reqq_push (&req_queue, req); |
530 | pthread_cond_signal (&reqwait); |
594 | pthread_cond_signal (&reqwait); |
531 | pthread_mutex_unlock (&reqlock); |
595 | UNLOCK (reqlock); |
532 | |
596 | |
533 | if (nreqs > max_outstanding) |
597 | if (nreqs > max_outstanding) |
534 | for (;;) |
598 | for (;;) |
535 | { |
599 | { |
536 | poll_cb (); |
600 | poll_cb (); |
… | |
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609 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
673 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
610 | { |
674 | { |
611 | ssize_t res; |
675 | ssize_t res; |
612 | off_t ooffset; |
676 | off_t ooffset; |
613 | |
677 | |
614 | pthread_mutex_lock (&preadwritelock); |
678 | LOCK (preadwritelock); |
615 | ooffset = lseek (fd, 0, SEEK_CUR); |
679 | ooffset = lseek (fd, 0, SEEK_CUR); |
616 | lseek (fd, offset, SEEK_SET); |
680 | lseek (fd, offset, SEEK_SET); |
617 | res = read (fd, buf, count); |
681 | res = read (fd, buf, count); |
618 | lseek (fd, ooffset, SEEK_SET); |
682 | lseek (fd, ooffset, SEEK_SET); |
619 | pthread_mutex_unlock (&preadwritelock); |
683 | UNLOCK (preadwritelock); |
620 | |
684 | |
621 | return res; |
685 | return res; |
622 | } |
686 | } |
623 | |
687 | |
624 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
688 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
625 | { |
689 | { |
626 | ssize_t res; |
690 | ssize_t res; |
627 | off_t ooffset; |
691 | off_t ooffset; |
628 | |
692 | |
629 | pthread_mutex_lock (&preadwritelock); |
693 | LOCK (preadwritelock); |
630 | ooffset = lseek (fd, 0, SEEK_CUR); |
694 | ooffset = lseek (fd, 0, SEEK_CUR); |
631 | lseek (fd, offset, SEEK_SET); |
695 | lseek (fd, offset, SEEK_SET); |
632 | res = write (fd, buf, count); |
696 | res = write (fd, buf, count); |
633 | lseek (fd, offset, SEEK_SET); |
697 | lseek (fd, offset, SEEK_SET); |
634 | pthread_mutex_unlock (&preadwritelock); |
698 | UNLOCK (preadwritelock); |
635 | |
699 | |
636 | return res; |
700 | return res; |
637 | } |
701 | } |
638 | #endif |
702 | #endif |
639 | |
703 | |
… | |
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655 | pread (fd, aio_buf, len, offset); |
719 | pread (fd, aio_buf, len, offset); |
656 | offset += len; |
720 | offset += len; |
657 | count -= len; |
721 | count -= len; |
658 | } |
722 | } |
659 | |
723 | |
660 | fBUF; |
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661 | |
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662 | errno = 0; |
724 | errno = 0; |
663 | } |
725 | } |
664 | #endif |
726 | #endif |
665 | |
727 | |
666 | #if !HAVE_READDIR_R |
728 | #if !HAVE_READDIR_R |
… | |
… | |
671 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
733 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
672 | { |
734 | { |
673 | struct dirent *e; |
735 | struct dirent *e; |
674 | int errorno; |
736 | int errorno; |
675 | |
737 | |
676 | pthread_mutex_lock (&readdirlock); |
738 | LOCK (readdirlock); |
677 | |
739 | |
678 | e = readdir (dirp); |
740 | e = readdir (dirp); |
679 | errorno = errno; |
741 | errorno = errno; |
680 | |
742 | |
681 | if (e) |
743 | if (e) |
… | |
… | |
684 | strcpy (ent->d_name, e->d_name); |
746 | strcpy (ent->d_name, e->d_name); |
685 | } |
747 | } |
686 | else |
748 | else |
687 | *res = 0; |
749 | *res = 0; |
688 | |
750 | |
689 | pthread_mutex_unlock (&readdirlock); |
751 | UNLOCK (readdirlock); |
690 | |
752 | |
691 | errno = errorno; |
753 | errno = errorno; |
692 | return e ? 0 : -1; |
754 | return e ? 0 : -1; |
693 | } |
755 | } |
694 | #endif |
756 | #endif |
695 | |
757 | |
696 | /* sendfile always needs emulation */ |
758 | /* sendfile always needs emulation */ |
697 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
759 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
698 | { |
760 | { |
699 | ssize_t res; |
761 | ssize_t res; |
700 | |
762 | |
701 | if (!count) |
763 | if (!count) |
702 | return 0; |
764 | return 0; |
… | |
… | |
779 | |
841 | |
780 | offset += cnt; |
842 | offset += cnt; |
781 | res += cnt; |
843 | res += cnt; |
782 | count -= cnt; |
844 | count -= cnt; |
783 | } |
845 | } |
784 | |
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785 | fBUF; |
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786 | } |
846 | } |
787 | |
847 | |
788 | return res; |
848 | return res; |
789 | } |
849 | } |
790 | |
850 | |
791 | /* read a full directory */ |
851 | /* read a full directory */ |
792 | static int scandir_ (const char *path, void **namesp) |
852 | static void scandir_ (aio_req req, worker *self) |
793 | { |
853 | { |
794 | DIR *dirp; |
854 | DIR *dirp; |
795 | union |
855 | union |
796 | { |
856 | { |
797 | struct dirent d; |
857 | struct dirent d; |
… | |
… | |
802 | int memlen = 4096; |
862 | int memlen = 4096; |
803 | int memofs = 0; |
863 | int memofs = 0; |
804 | int res = 0; |
864 | int res = 0; |
805 | int errorno; |
865 | int errorno; |
806 | |
866 | |
807 | dirp = opendir (path); |
867 | LOCK (wrklock); |
808 | if (!dirp) |
868 | self->dirp = dirp = opendir (req->dataptr); |
809 | return -1; |
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810 | |
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811 | u = malloc (sizeof (*u)); |
869 | self->dbuf = u = malloc (sizeof (*u)); |
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870 | UNLOCK (wrklock); |
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871 | |
812 | names = malloc (memlen); |
872 | req->data2ptr = names = malloc (memlen); |
813 | |
873 | |
814 | if (u && names) |
874 | if (dirp && u && names) |
815 | for (;;) |
875 | for (;;) |
816 | { |
876 | { |
817 | errno = 0; |
877 | errno = 0; |
818 | readdir_r (dirp, &u->d, &entp); |
878 | readdir_r (dirp, &u->d, &entp); |
819 | |
879 | |
… | |
… | |
829 | res++; |
889 | res++; |
830 | |
890 | |
831 | while (memofs + len > memlen) |
891 | while (memofs + len > memlen) |
832 | { |
892 | { |
833 | memlen *= 2; |
893 | memlen *= 2; |
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894 | LOCK (wrklock); |
834 | names = realloc (names, memlen); |
895 | req->data2ptr = names = realloc (names, memlen); |
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896 | UNLOCK (wrklock); |
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897 | |
835 | if (!names) |
898 | if (!names) |
836 | break; |
899 | break; |
837 | } |
900 | } |
838 | |
901 | |
839 | memcpy (names + memofs, name, len); |
902 | memcpy (names + memofs, name, len); |
840 | memofs += len; |
903 | memofs += len; |
841 | } |
904 | } |
842 | } |
905 | } |
843 | |
906 | |
844 | errorno = errno; |
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845 | free (u); |
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846 | closedir (dirp); |
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847 | |
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848 | if (errorno) |
907 | if (errno) |
849 | { |
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850 | free (names); |
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851 | errno = errorno; |
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852 | res = -1; |
908 | res = -1; |
853 | } |
909 | |
854 | |
910 | req->result = res; |
855 | *namesp = (void *)names; |
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856 | return res; |
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857 | } |
911 | } |
858 | |
912 | |
859 | /*****************************************************************************/ |
913 | /*****************************************************************************/ |
860 | |
914 | |
861 | static void *aio_proc (void *thr_arg) |
915 | static void *aio_proc (void *thr_arg) |
862 | { |
916 | { |
863 | aio_req req; |
917 | aio_req req; |
864 | int type; |
918 | int type; |
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919 | worker *self = (worker *)thr_arg; |
865 | |
920 | |
866 | do |
921 | do |
867 | { |
922 | { |
868 | pthread_mutex_lock (&reqlock); |
923 | LOCK (reqlock); |
869 | |
924 | |
870 | for (;;) |
925 | for (;;) |
871 | { |
926 | { |
872 | req = reqq_shift (&req_queue); |
927 | self->req = req = reqq_shift (&req_queue); |
873 | |
928 | |
874 | if (req) |
929 | if (req) |
875 | break; |
930 | break; |
876 | |
931 | |
877 | pthread_cond_wait (&reqwait, &reqlock); |
932 | pthread_cond_wait (&reqwait, &reqlock); |
878 | } |
933 | } |
879 | |
934 | |
880 | pthread_mutex_unlock (&reqlock); |
935 | UNLOCK (reqlock); |
881 | |
936 | |
882 | errno = 0; /* strictly unnecessary */ |
937 | errno = 0; /* strictly unnecessary */ |
883 | type = req->type; /* remember type for QUIT check */ |
938 | type = req->type; /* remember type for QUIT check */ |
884 | |
939 | |
885 | if (!(req->flags & FLAG_CANCELLED)) |
940 | if (!(req->flags & FLAG_CANCELLED)) |
… | |
… | |
887 | { |
942 | { |
888 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
943 | 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; |
944 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
890 | |
945 | |
891 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
946 | 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; |
947 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
893 | |
948 | |
894 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
949 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
895 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
950 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
896 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
951 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
897 | |
952 | |
… | |
… | |
903 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
958 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
904 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
959 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
905 | |
960 | |
906 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
961 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
907 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
962 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
908 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
963 | case REQ_READDIR: scandir_ (req, self); break; |
909 | |
964 | |
910 | case REQ_BUSY: |
965 | case REQ_BUSY: |
911 | { |
966 | { |
912 | struct timeval tv; |
967 | struct timeval tv; |
913 | |
968 | |
… | |
… | |
927 | break; |
982 | break; |
928 | } |
983 | } |
929 | |
984 | |
930 | req->errorno = errno; |
985 | req->errorno = errno; |
931 | |
986 | |
932 | pthread_mutex_lock (&reslock); |
987 | LOCK (reslock); |
933 | |
988 | |
934 | if (!reqq_push (&res_queue, req)) |
989 | if (!reqq_push (&res_queue, req)) |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
990 | /* write a dummy byte to the pipe so fh becomes ready */ |
936 | write (respipe [1], &respipe, 1); |
991 | write (respipe [1], &respipe, 1); |
937 | |
992 | |
938 | pthread_mutex_unlock (&reslock); |
993 | self->req = 0; |
|
|
994 | worker_clear (self); |
|
|
995 | |
|
|
996 | UNLOCK (reslock); |
939 | } |
997 | } |
940 | while (type != REQ_QUIT); |
998 | while (type != REQ_QUIT); |
941 | |
999 | |
|
|
1000 | LOCK (wrklock); |
|
|
1001 | worker_free (self); |
|
|
1002 | UNLOCK (wrklock); |
|
|
1003 | |
942 | return 0; |
1004 | return 0; |
943 | } |
1005 | } |
944 | |
1006 | |
945 | /*****************************************************************************/ |
1007 | /*****************************************************************************/ |
946 | |
1008 | |
947 | static void atfork_prepare (void) |
1009 | static void atfork_prepare (void) |
948 | { |
1010 | { |
949 | pthread_mutex_lock (&reqlock); |
1011 | LOCK (wrklock); |
950 | pthread_mutex_lock (&reslock); |
1012 | LOCK (reqlock); |
|
|
1013 | LOCK (reslock); |
951 | #if !HAVE_PREADWRITE |
1014 | #if !HAVE_PREADWRITE |
952 | pthread_mutex_lock (&preadwritelock); |
1015 | LOCK (preadwritelock); |
953 | #endif |
1016 | #endif |
954 | #if !HAVE_READDIR_R |
1017 | #if !HAVE_READDIR_R |
955 | pthread_mutex_lock (&readdirlock); |
1018 | LOCK (readdirlock); |
956 | #endif |
1019 | #endif |
957 | } |
1020 | } |
958 | |
1021 | |
959 | static void atfork_parent (void) |
1022 | static void atfork_parent (void) |
960 | { |
1023 | { |
961 | #if !HAVE_READDIR_R |
1024 | #if !HAVE_READDIR_R |
962 | pthread_mutex_unlock (&readdirlock); |
1025 | UNLOCK (readdirlock); |
963 | #endif |
1026 | #endif |
964 | #if !HAVE_PREADWRITE |
1027 | #if !HAVE_PREADWRITE |
965 | pthread_mutex_unlock (&preadwritelock); |
1028 | UNLOCK (preadwritelock); |
966 | #endif |
1029 | #endif |
967 | pthread_mutex_unlock (&reslock); |
1030 | UNLOCK (reslock); |
968 | pthread_mutex_unlock (&reqlock); |
1031 | UNLOCK (reqlock); |
|
|
1032 | UNLOCK (wrklock); |
969 | } |
1033 | } |
970 | |
1034 | |
971 | static void atfork_child (void) |
1035 | static void atfork_child (void) |
972 | { |
1036 | { |
973 | aio_req prv; |
1037 | aio_req prv; |
974 | |
|
|
975 | started = 0; |
|
|
976 | |
1038 | |
977 | while (prv = reqq_shift (&req_queue)) |
1039 | while (prv = reqq_shift (&req_queue)) |
978 | req_free (prv); |
1040 | req_free (prv); |
979 | |
1041 | |
980 | while (prv = reqq_shift (&res_queue)) |
1042 | while (prv = reqq_shift (&res_queue)) |
981 | req_free (prv); |
1043 | req_free (prv); |
982 | |
1044 | |
|
|
1045 | while (wrk_first.next != &wrk_first) |
|
|
1046 | { |
|
|
1047 | worker *wrk = wrk_first.next; |
|
|
1048 | |
|
|
1049 | if (wrk->req) |
|
|
1050 | req_free (wrk->req); |
|
|
1051 | |
|
|
1052 | worker_clear (wrk); |
|
|
1053 | worker_free (wrk); |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | started = 0; |
|
|
1057 | nreqs = 0; |
|
|
1058 | |
983 | close (respipe [0]); |
1059 | close (respipe [0]); |
984 | close (respipe [1]); |
1060 | close (respipe [1]); |
985 | create_pipe (); |
1061 | create_pipe (); |
986 | |
1062 | |
987 | atfork_parent (); |
1063 | atfork_parent (); |