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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC vs.
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC

… …
7 7
8#include "autoconf/config.h" 8#include "autoconf/config.h"
9 9
10#include <pthread.h> 10#include <pthread.h>
11 11
12#include <stddef.h>
13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14 16#include <limits.h>
15#include <unistd.h> 17#include <unistd.h>
16#include <fcntl.h> 18#include <fcntl.h>
17#include <signal.h> 19#include <signal.h>
18#include <sched.h> 20#include <sched.h>
19 21
… …
30# else 32# else
31# error sendfile support requested but not available 33# error sendfile support requested but not available
32# endif 34# endif
33#endif 35#endif
34 36
37/* used for struct dirent, AIX doesn't provide it */
38#ifndef NAME_MAX
39# define NAME_MAX 4096
40#endif
41
35#if __ia64 42#if __ia64
36# define STACKSIZE 65536 43# define STACKSIZE 65536
37#else 44#else
38# define STACKSIZE 4096 45# define STACKSIZE 8192
39#endif 46#endif
40 47
41enum { 48enum {
42 REQ_QUIT, 49 REQ_QUIT,
43 REQ_OPEN, REQ_CLOSE, 50 REQ_OPEN, REQ_CLOSE,
44 REQ_READ, REQ_WRITE, REQ_READAHEAD, 51 REQ_READ, REQ_WRITE, REQ_READAHEAD,
45 REQ_SENDFILE, 52 REQ_SENDFILE,
46 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 53 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
47 REQ_FSYNC, REQ_FDATASYNC, 54 REQ_FSYNC, REQ_FDATASYNC,
48 REQ_UNLINK, REQ_RMDIR, 55 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
49 REQ_SYMLINK, 56 REQ_READDIR,
57 REQ_LINK, REQ_SYMLINK,
50}; 58};
51 59
52typedef struct aio_cb { 60typedef struct aio_cb {
53 struct aio_cb *volatile next; 61 struct aio_cb *volatile next;
54 62
55 int type; 63 int type;
56 64
65 /* should receive a cleanup, with unions */
57 int fd, fd2; 66 int fd, fd2;
58 off_t offset; 67 off_t offset;
59 size_t length; 68 size_t length;
60 ssize_t result; 69 ssize_t result;
61 mode_t mode; /* open */ 70 mode_t mode; /* open */
… …
97 Safefree (req->statdata); 106 Safefree (req->statdata);
98 107
99 if (req->callback) 108 if (req->callback)
100 SvREFCNT_dec (req->callback); 109 SvREFCNT_dec (req->callback);
101 110
111 if (req->type == REQ_READDIR && req->result >= 0)
112 free (req->data2ptr);
113
102 Safefree (req); 114 Safefree (req);
103} 115}
104 116
105static void 117static void
106poll_wait () 118poll_wait ()
… …
170 PL_statcache = *(req->statdata); 182 PL_statcache = *(req->statdata);
171 } 183 }
172 184
173 ENTER; 185 ENTER;
174 PUSHMARK (SP); 186 PUSHMARK (SP);
175 XPUSHs (sv_2mortal (newSViv (req->result)));
176 187
177 if (req->type == REQ_OPEN) 188 if (req->type == REQ_READDIR)
178 { 189 {
190 SV *rv = &PL_sv_undef;
191
192 if (req->result >= 0)
193 {
194 char *buf = req->data2ptr;
195 AV *av = newAV ();
196
197 while (req->result)
198 {
199 SV *sv = newSVpv (buf, 0);
200
201 av_push (av, sv);
202 buf += SvCUR (sv) + 1;
203 req->result--;
204 }
205
206 rv = sv_2mortal (newRV_noinc ((SV *)av));
207 }
208
209 XPUSHs (rv);
210 }
211 else
212 {
213 XPUSHs (sv_2mortal (newSViv (req->result)));
214
215 if (req->type == REQ_OPEN)
216 {
179 /* convert fd to fh */ 217 /* convert fd to fh */
180 SV *fh; 218 SV *fh;
181 219
182 PUTBACK; 220 PUTBACK;
183 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 221 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
184 SPAGAIN; 222 SPAGAIN;
185 223
186 fh = SvREFCNT_inc (POPs); 224 fh = SvREFCNT_inc (POPs);
187 225
188 PUSHMARK (SP); 226 PUSHMARK (SP);
189 XPUSHs (sv_2mortal (fh)); 227 XPUSHs (sv_2mortal (fh));
228 }
190 } 229 }
191 230
192 if (SvOK (req->callback)) 231 if (SvOK (req->callback))
193 { 232 {
194 PUTBACK; 233 PUTBACK;
… …
317 356
318 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 357 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
319 croak ("cannot set result pipe to nonblocking mode"); 358 croak ("cannot set result pipe to nonblocking mode");
320} 359}
321 360
322static void atfork_prepare (void)
323{
324 pthread_mutex_lock (&reqlock);
325 pthread_mutex_lock (&reslock);
326}
327
328static void atfork_parent (void)
329{
330 pthread_mutex_unlock (&reslock);
331 pthread_mutex_unlock (&reqlock);
332}
333
334static void atfork_child (void)
335{
336 aio_req prv;
337
338 started = 0;
339
340 while (reqs)
341 {
342 prv = reqs;
343 reqs = prv->next;
344 free_req (prv);
345 }
346
347 reqs = reqe = 0;
348
349 while (ress)
350 {
351 prv = ress;
352 ress = prv->next;
353 free_req (prv);
354 }
355
356 ress = rese = 0;
357
358 close (respipe [0]);
359 close (respipe [1]);
360 create_pipe ();
361
362 atfork_parent ();
363}
364
365/*****************************************************************************/ 361/*****************************************************************************/
366/* work around various missing functions */ 362/* work around various missing functions */
367 363
368#if !HAVE_PREADWRITE 364#if !HAVE_PREADWRITE
369# define pread aio_pread 365# define pread aio_pread
… …
372/* 368/*
373 * make our pread/pwrite safe against themselves, but not against 369 * make our pread/pwrite safe against themselves, but not against
374 * normal read/write by using a mutex. slows down execution a lot, 370 * normal read/write by using a mutex. slows down execution a lot,
375 * but that's your problem, not mine. 371 * but that's your problem, not mine.
376 */ 372 */
377static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; 373static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
378 374
379static ssize_t 375static ssize_t
380pread (int fd, void *buf, size_t count, off_t offset) 376pread (int fd, void *buf, size_t count, off_t offset)
381{ 377{
382 ssize_t res; 378 ssize_t res;
383 off_t ooffset; 379 off_t ooffset;
384 380
385 pthread_mutex_lock (&iolock); 381 pthread_mutex_lock (&preadwritelock);
386 ooffset = lseek (fd, 0, SEEK_CUR); 382 ooffset = lseek (fd, 0, SEEK_CUR);
387 lseek (fd, offset, SEEK_SET); 383 lseek (fd, offset, SEEK_SET);
388 res = read (fd, buf, count); 384 res = read (fd, buf, count);
389 lseek (fd, ooffset, SEEK_SET); 385 lseek (fd, ooffset, SEEK_SET);
390 pthread_mutex_unlock (&iolock); 386 pthread_mutex_unlock (&preadwritelock);
391 387
392 return res; 388 return res;
393} 389}
394 390
395static ssize_t 391static ssize_t
396pwrite (int fd, void *buf, size_t count, off_t offset) 392pwrite (int fd, void *buf, size_t count, off_t offset)
397{ 393{
398 ssize_t res; 394 ssize_t res;
399 off_t ooffset; 395 off_t ooffset;
400 396
401 pthread_mutex_lock (&iolock); 397 pthread_mutex_lock (&preadwritelock);
402 ooffset = lseek (fd, 0, SEEK_CUR); 398 ooffset = lseek (fd, 0, SEEK_CUR);
403 lseek (fd, offset, SEEK_SET); 399 lseek (fd, offset, SEEK_SET);
404 res = write (fd, buf, count); 400 res = write (fd, buf, count);
405 lseek (fd, offset, SEEK_SET); 401 lseek (fd, offset, SEEK_SET);
406 pthread_mutex_unlock (&iolock); 402 pthread_mutex_unlock (&preadwritelock);
407 403
408 return res; 404 return res;
409} 405}
410#endif 406#endif
411 407
… …
414#endif 410#endif
415 411
416#if !HAVE_READAHEAD 412#if !HAVE_READAHEAD
417# define readahead aio_readahead 413# define readahead aio_readahead
418 414
419static char readahead_buf[4096];
420
421static ssize_t 415static ssize_t
422readahead (int fd, off_t offset, size_t count) 416readahead (int fd, off_t offset, size_t count)
423{ 417{
418 char readahead_buf[4096];
419
424 while (count > 0) 420 while (count > 0)
425 { 421 {
426 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 422 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
427 423
428 pread (fd, readahead_buf, len, offset); 424 pread (fd, readahead_buf, len, offset);
… …
432 428
433 errno = 0; 429 errno = 0;
434} 430}
435#endif 431#endif
436 432
433#if !HAVE_READDIR_R
434# define readdir_r aio_readdir_r
435
436static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437
438static int
439readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
440{
441 struct dirent *e;
442 int errorno;
443
444 pthread_mutex_lock (&readdirlock);
445
446 e = readdir (dirp);
447 errorno = errno;
448
449 if (e)
450 {
451 *res = ent;
452 strcpy (ent->d_name, e->d_name);
453 }
454 else
455 *res = 0;
456
457 pthread_mutex_unlock (&readdirlock);
458
459 errno = errorno;
460 return e ? 0 : -1;
461}
462#endif
463
437/* sendfile always needs emulation */ 464/* sendfile always needs emulation */
438static ssize_t 465static ssize_t
439sendfile_ (int ofd, int ifd, off_t offset, size_t count) 466sendfile_ (int ofd, int ifd, off_t offset, size_t count)
440{ 467{
441 ssize_t res; 468 ssize_t res;
442 469
443 if (!count) 470 if (!count)
444 return 0; 471 return 0;
445 472
446#if HAVE_SENDFILE 473#if HAVE_SENDFILE
447# if __linux 474# if __linux
448 res = sendfile (ofd, ifd, &offset, count); 475 res = sendfile (ofd, ifd, &offset, count);
449 476
450# elif __freebsd 477# elif __freebsd
451 /* 478 /*
452 * Of course, the freebsd sendfile is a dire hack with no thoughts 479 * Of course, the freebsd sendfile is a dire hack with no thoughts
453 * wasted on making it similar to other I/O functions. 480 * wasted on making it similar to other I/O functions.
454 */ 481 */
455 { 482 {
456 off_t sbytes; 483 off_t sbytes;
457 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 484 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
458 485
459 if (res < 0 && sbytes) 486 if (res < 0 && sbytes)
460 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 487 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
461 res = sbytes; 488 res = sbytes;
462 } 489 }
463 490
464# elif __hpux 491# elif __hpux
465 res = sendfile (ofd, ifd, offset, count, 0, 0); 492 res = sendfile (ofd, ifd, offset, count, 0, 0);
466 493
467# elif __solaris 494# elif __solaris
468 { 495 {
469 struct sendfilevec vec; 496 struct sendfilevec vec;
470 size_t sbytes; 497 size_t sbytes;
471 498
472 vec.sfv_fd = ifd; 499 vec.sfv_fd = ifd;
473 vec.sfv_flag = 0; 500 vec.sfv_flag = 0;
474 vec.sfv_off = offset; 501 vec.sfv_off = offset;
475 vec.sfv_len = count; 502 vec.sfv_len = count;
476 503
477 res = sendfilev (ofd, &vec, 1, &sbytes); 504 res = sendfilev (ofd, &vec, 1, &sbytes);
478 505
479 if (res < 0 && sbytes) 506 if (res < 0 && sbytes)
480 res = sbytes; 507 res = sbytes;
481 } 508 }
482 509
483# else
484 res = -1;
485 errno = ENOSYS;
486# endif 510# endif
511#else
512 res = -1;
513 errno = ENOSYS;
487#endif 514#endif
488 515
489 if (res < 0 516 if (res < 0
490 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 517 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
491#if __solaris 518#if __solaris
492 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 519 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
493#endif 520#endif
494 ) 521 )
495 ) 522 )
496 { 523 {
497 /* emulate sendfile. this is a major pain in the ass */ 524 /* emulate sendfile. this is a major pain in the ass */
498 char *buf = malloc (4096); 525 char buf[4096];
499 res = 0; 526 res = 0;
500 527
501 for (;;) 528 while (count)
502 { 529 {
503 ssize_t cnt; 530 ssize_t cnt;
504 531
505 cnt = pread (ifd, buf, 4096, offset); 532 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
506 533
507 if (cnt <= 0) 534 if (cnt <= 0)
508 { 535 {
509 if (cnt && !res) res = -1; 536 if (cnt && !res) res = -1;
510 break; 537 break;
511 } 538 }
512 539
513 cnt = write (ofd, buf, cnt); 540 cnt = write (ofd, buf, cnt);
514 541
515 if (cnt <= 0) 542 if (cnt <= 0)
516 { 543 {
517 if (cnt && !res) res = -1; 544 if (cnt && !res) res = -1;
518 break; 545 break;
519 } 546 }
520 547
521 offset += cnt; 548 offset += cnt;
522 res += cnt; 549 res += cnt;
550 count -= cnt;
523 } 551 }
524
525 {
526 int errorno = errno;
527 free (buf);
528 errno = errorno;
529 }
530 } 552 }
531 553
532 return res; 554 return res;
555}
556
557/* read a full directory */
558static int
559scandir_ (const char *path, void **namesp)
560{
561 DIR *dirp = opendir (path);
562 union
563 {
564 struct dirent d;
565 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
566 } u;
567 struct dirent *entp;
568 char *name, *names;
569 int memlen = 4096;
570 int memofs = 0;
571 int res = 0;
572 int errorno;
573
574 if (!dirp)
575 return -1;
576
577 names = malloc (memlen);
578
579 for (;;)
580 {
581 errno = 0, readdir_r (dirp, &u.d, &entp);
582
583 if (!entp)
584 break;
585
586 name = entp->d_name;
587
588 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
589 {
590 int len = strlen (name) + 1;
591
592 res++;
593
594 while (memofs + len > memlen)
595 {
596 memlen *= 2;
597 names = realloc (names, memlen);
598 if (!names)
599 break;
600 }
601
602 memcpy (names + memofs, name, len);
603 memofs += len;
604 }
605 }
606
607 errorno = errno;
608 closedir (dirp);
609
610 if (errorno)
611 {
612 free (names);
613 errno = errorno;
614 res = -1;
615 }
616
617 *namesp = (void *)names;
618 return res;
533} 619}
534 620
535/*****************************************************************************/ 621/*****************************************************************************/
536 622
537static void * 623static void *
… …
580 666
581 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 667 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
582 case REQ_CLOSE: req->result = close (req->fd); break; 668 case REQ_CLOSE: req->result = close (req->fd); break;
583 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 669 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
584 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 670 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
585 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 673 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
586 674
587 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 675 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
588 case REQ_FSYNC: req->result = fsync (req->fd); break; 676 case REQ_FSYNC: req->result = fsync (req->fd); break;
677 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
589 678
590 case REQ_QUIT: 679 case REQ_QUIT:
591 break; 680 break;
592 681
593 default: 682 default:
… …
617 pthread_mutex_unlock (&reslock); 706 pthread_mutex_unlock (&reslock);
618 } 707 }
619 while (type != REQ_QUIT); 708 while (type != REQ_QUIT);
620 709
621 return 0; 710 return 0;
711}
712
713/*****************************************************************************/
714
715static void atfork_prepare (void)
716{
717 pthread_mutex_lock (&reqlock);
718 pthread_mutex_lock (&reslock);
719#if !HAVE_PREADWRITE
720 pthread_mutex_lock (&preadwritelock);
721#endif
722#if !HAVE_READDIR_R
723 pthread_mutex_lock (&readdirlock);
724#endif
725}
726
727static void atfork_parent (void)
728{
729#if !HAVE_READDIR_R
730 pthread_mutex_unlock (&readdirlock);
731#endif
732#if !HAVE_PREADWRITE
733 pthread_mutex_unlock (&preadwritelock);
734#endif
735 pthread_mutex_unlock (&reslock);
736 pthread_mutex_unlock (&reqlock);
737}
738
739static void atfork_child (void)
740{
741 aio_req prv;
742
743 started = 0;
744
745 while (reqs)
746 {
747 prv = reqs;
748 reqs = prv->next;
749 free_req (prv);
750 }
751
752 reqs = reqe = 0;
753
754 while (ress)
755 {
756 prv = ress;
757 ress = prv->next;
758 free_req (prv);
759 }
760
761 ress = rese = 0;
762
763 close (respipe [0]);
764 close (respipe [1]);
765 create_pipe ();
766
767 atfork_parent ();
622} 768}
623 769
624#define dREQ \ 770#define dREQ \
625 aio_req req; \ 771 aio_req req; \
626 \ 772 \
… …
637 783
638PROTOTYPES: ENABLE 784PROTOTYPES: ENABLE
639 785
640BOOT: 786BOOT:
641{ 787{
788 HV *stash = gv_stashpv ("IO::AIO", 1);
789 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
790 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
791 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
792
642 create_pipe (); 793 create_pipe ();
643 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 794 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
644} 795}
645 796
646void 797void
647min_parallel(nthreads) 798min_parallel (nthreads)
648 int nthreads 799 int nthreads
649 PROTOTYPE: $ 800 PROTOTYPE: $
650 801
651void 802void
652max_parallel(nthreads) 803max_parallel (nthreads)
653 int nthreads 804 int nthreads
654 PROTOTYPE: $ 805 PROTOTYPE: $
655 806
656int 807int
657max_outstanding(nreqs) 808max_outstanding (nreqs)
658 int nreqs 809 int nreqs
659 PROTOTYPE: $ 810 PROTOTYPE: $
660 CODE: 811 CODE:
661 RETVAL = max_outstanding; 812 RETVAL = max_outstanding;
662 max_outstanding = nreqs; 813 max_outstanding = nreqs;
663 814
664void 815void
665aio_open(pathname,flags,mode,callback=&PL_sv_undef) 816aio_open (pathname,flags,mode,callback=&PL_sv_undef)
666 SV * pathname 817 SV * pathname
667 int flags 818 int flags
668 int mode 819 int mode
669 SV * callback 820 SV * callback
670 PROTOTYPE: $$$;$ 821 PROTOTYPE: $$$;$
… …
680 831
681 send_req (req); 832 send_req (req);
682} 833}
683 834
684void 835void
685aio_close(fh,callback=&PL_sv_undef) 836aio_close (fh,callback=&PL_sv_undef)
686 SV * fh 837 SV * fh
687 SV * callback 838 SV * callback
688 PROTOTYPE: $;$ 839 PROTOTYPE: $;$
689 ALIAS: 840 ALIAS:
690 aio_close = REQ_CLOSE 841 aio_close = REQ_CLOSE
… …
700 851
701 send_req (req); 852 send_req (req);
702} 853}
703 854
704void 855void
705aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 856aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
706 SV * fh 857 SV * fh
707 UV offset 858 UV offset
708 UV length 859 UV length
709 SV * data 860 SV * data
710 UV dataoffset 861 UV dataoffset
… …
764 send_req (req); 915 send_req (req);
765 } 916 }
766} 917}
767 918
768void 919void
769aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 920aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
770 SV * out_fh 921 SV * out_fh
771 SV * in_fh 922 SV * in_fh
772 UV in_offset 923 UV in_offset
773 UV length 924 UV length
774 SV * callback 925 SV * callback
… …
787 938
788 send_req (req); 939 send_req (req);
789} 940}
790 941
791void 942void
792aio_readahead(fh,offset,length,callback=&PL_sv_undef) 943aio_readahead (fh,offset,length,callback=&PL_sv_undef)
793 SV * fh 944 SV * fh
794 UV offset 945 UV offset
795 IV length 946 IV length
796 SV * callback 947 SV * callback
797 PROTOTYPE: $$$;$ 948 PROTOTYPE: $$$;$
… …
807 958
808 send_req (req); 959 send_req (req);
809} 960}
810 961
811void 962void
812aio_stat(fh_or_path,callback=&PL_sv_undef) 963aio_stat (fh_or_path,callback=&PL_sv_undef)
813 SV * fh_or_path 964 SV * fh_or_path
814 SV * callback 965 SV * callback
815 ALIAS: 966 ALIAS:
816 aio_stat = REQ_STAT 967 aio_stat = REQ_STAT
817 aio_lstat = REQ_LSTAT 968 aio_lstat = REQ_LSTAT
… …
841 992
842 send_req (req); 993 send_req (req);
843} 994}
844 995
845void 996void
846aio_unlink(pathname,callback=&PL_sv_undef) 997aio_unlink (pathname,callback=&PL_sv_undef)
847 SV * pathname 998 SV * pathname
848 SV * callback 999 SV * callback
849 ALIAS: 1000 ALIAS:
850 aio_unlink = REQ_UNLINK 1001 aio_unlink = REQ_UNLINK
851 aio_rmdir = REQ_RMDIR 1002 aio_rmdir = REQ_RMDIR
1003 aio_readdir = REQ_READDIR
852 CODE: 1004 CODE:
853{ 1005{
854 dREQ; 1006 dREQ;
855 1007
856 req->type = ix; 1008 req->type = ix;
… …
859 1011
860 send_req (req); 1012 send_req (req);
861} 1013}
862 1014
863void 1015void
864aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1016aio_link (oldpath,newpath,callback=&PL_sv_undef)
865 SV * oldpath 1017 SV * oldpath
866 SV * newpath 1018 SV * newpath
867 SV * callback 1019 SV * callback
1020 ALIAS:
1021 aio_link = REQ_LINK
1022 aio_symlink = REQ_SYMLINK
1023 aio_rename = REQ_RENAME
868 CODE: 1024 CODE:
869{ 1025{
870 dREQ; 1026 dREQ;
871 1027
872 req->type = REQ_SYMLINK; 1028 req->type = ix;
873 req->fh = newSVsv (oldpath); 1029 req->fh = newSVsv (oldpath);
874 req->data2ptr = SvPVbyte_nolen (req->fh); 1030 req->data2ptr = SvPVbyte_nolen (req->fh);
875 req->data = newSVsv (newpath); 1031 req->data = newSVsv (newpath);
876 req->dataptr = SvPVbyte_nolen (req->data); 1032 req->dataptr = SvPVbyte_nolen (req->data);
877 1033
878 send_req (req); 1034 send_req (req);
879} 1035}
880 1036
1037#if 0
1038
1039# undocumented, because it does not cancel active requests
881void 1040void
1041cancel_most_requests ()
1042 PROTOTYPE:
1043 CODE:
1044{
1045 aio_req *req;
1046
1047 pthread_mutex_lock (&reqlock);
1048 for (req = reqs; req; req = req->next)
1049 req->flags |= 1;
1050 pthread_mutex_unlock (&reqlock);
1051
1052 pthread_mutex_lock (&reslock);
1053 for (req = ress; req; req = req->next)
1054 req->flags |= 1;
1055 pthread_mutex_unlock (&reslock);
1056}
1057
1058#endif
1059
1060void
882flush() 1061flush ()
883 PROTOTYPE: 1062 PROTOTYPE:
884 CODE: 1063 CODE:
885 while (nreqs) 1064 while (nreqs)
886 { 1065 {
887 poll_wait (); 1066 poll_wait ();

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