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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.35 by root, Tue Aug 23 01:16:50 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/* currently noops */
366#define LOCK_FD(fd) do { } while (0)
367#define UNLOCK_FD(fd) do { } while (0)
368
369/*****************************************************************************/ 361/*****************************************************************************/
370/* work around various missing functions */ 362/* work around various missing functions */
371 363
372#if !HAVE_PREADWRITE 364#if !HAVE_PREADWRITE
373# define pread aio_pread 365# define pread aio_pread
… …
376/* 368/*
377 * make our pread/pwrite safe against themselves, but not against 369 * make our pread/pwrite safe against themselves, but not against
378 * 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,
379 * but that's your problem, not mine. 371 * but that's your problem, not mine.
380 */ 372 */
381static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; 373static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
382 374
383static ssize_t 375static ssize_t
384pread (int fd, void *buf, size_t count, off_t offset) 376pread (int fd, void *buf, size_t count, off_t offset)
385{ 377{
386 ssize_t res; 378 ssize_t res;
387 off_t ooffset; 379 off_t ooffset;
388 380
389 LOCK_FD (fd); 381 pthread_mutex_lock (&preadwritelock);
390 pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
391 ooffset = lseek (fd, 0, SEEK_CUR); 382 ooffset = lseek (fd, 0, SEEK_CUR);
392 lseek (fd, offset, SEEK_SET); 383 lseek (fd, offset, SEEK_SET);
393 res = read (fd, buf, count); 384 res = read (fd, buf, count);
394 lseek (fd, ooffset, SEEK_SET); 385 lseek (fd, ooffset, SEEK_SET);
395 pthread_mutex_unlock (&iolock); 386 pthread_mutex_unlock (&preadwritelock);
396 UNLOCK_FD (d);
397 387
398 return res; 388 return res;
399} 389}
400 390
401static ssize_t 391static ssize_t
402pwrite (int fd, void *buf, size_t count, off_t offset) 392pwrite (int fd, void *buf, size_t count, off_t offset)
403{ 393{
404 ssize_t res; 394 ssize_t res;
405 off_t ooffset; 395 off_t ooffset;
406 396
407 LOCK_FD (fd); 397 pthread_mutex_lock (&preadwritelock);
408 pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
409 ooffset = lseek (fd, 0, SEEK_CUR); 398 ooffset = lseek (fd, 0, SEEK_CUR);
410 lseek (fd, offset, SEEK_SET); 399 lseek (fd, offset, SEEK_SET);
411 res = write (fd, buf, count); 400 res = write (fd, buf, count);
412 lseek (fd, offset, SEEK_SET); 401 lseek (fd, offset, SEEK_SET);
413 pthread_mutex_unlock (&iolock); 402 pthread_mutex_unlock (&preadwritelock);
414 UNLOCK_FD (d);
415 403
416 return res; 404 return res;
417} 405}
418#endif 406#endif
419 407
… …
422#endif 410#endif
423 411
424#if !HAVE_READAHEAD 412#if !HAVE_READAHEAD
425# define readahead aio_readahead 413# define readahead aio_readahead
426 414
427static char readahead_buf[4096];
428
429static ssize_t 415static ssize_t
430readahead (int fd, off_t offset, size_t count) 416readahead (int fd, off_t offset, size_t count)
431{ 417{
418 char readahead_buf[4096];
419
432 while (count > 0) 420 while (count > 0)
433 { 421 {
434 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 422 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
435 423
436 pread (fd, readahead_buf, len, offset); 424 pread (fd, readahead_buf, len, offset);
… …
440 428
441 errno = 0; 429 errno = 0;
442} 430}
443#endif 431#endif
444 432
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
445/* sendfile always needs emulation */ 464/* sendfile always needs emulation */
446static ssize_t 465static ssize_t
447sendfile_ (int ofd, int ifd, off_t offset, size_t count) 466sendfile_ (int ofd, int ifd, off_t offset, size_t count)
448{ 467{
449 ssize_t res; 468 ssize_t res;
450 469
451 if (!count) 470 if (!count)
452 return 0; 471 return 0;
453
454 LOCK_FD (ofd);
455 472
456#if HAVE_SENDFILE 473#if HAVE_SENDFILE
457# if __linux 474# if __linux
458 res = sendfile (ofd, ifd, &offset, count); 475 res = sendfile (ofd, ifd, &offset, count);
459 476
460# elif __freebsd 477# elif __freebsd
461 /* 478 /*
462 * 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
463 * wasted on making it similar to other I/O functions. 480 * wasted on making it similar to other I/O functions.
464 */ 481 */
465 { 482 {
466 off_t sbytes; 483 off_t sbytes;
467 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 484 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
468 485
469 if (res < 0 && sbytes) 486 if (res < 0 && sbytes)
470 /* 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 */
471 res = sbytes; 488 res = sbytes;
472 } 489 }
473 490
474# elif __hpux 491# elif __hpux
475 res = sendfile (ofd, ifd, offset, count, 0, 0); 492 res = sendfile (ofd, ifd, offset, count, 0, 0);
476 493
477# elif __solaris 494# elif __solaris
478 { 495 {
479 struct sendfilevec vec; 496 struct sendfilevec vec;
480 size_t sbytes; 497 size_t sbytes;
481 498
482 vec.sfv_fd = ifd; 499 vec.sfv_fd = ifd;
483 vec.sfv_flag = 0; 500 vec.sfv_flag = 0;
484 vec.sfv_off = offset; 501 vec.sfv_off = offset;
485 vec.sfv_len = count; 502 vec.sfv_len = count;
486 503
487 res = sendfilev (ofd, &vec, 1, &sbytes); 504 res = sendfilev (ofd, &vec, 1, &sbytes);
488 505
489 if (res < 0 && sbytes) 506 if (res < 0 && sbytes)
490 res = sbytes; 507 res = sbytes;
491 } 508 }
492 509
493# else
494 res = -1;
495 errno = ENOSYS;
496# endif 510# endif
511#else
512 res = -1;
513 errno = ENOSYS;
497#endif 514#endif
498 515
499 if (res < 0 516 if (res < 0
500 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 517 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
501#if __solaris 518#if __solaris
502 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 519 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
503#endif 520#endif
504 ) 521 )
505 ) 522 )
506 { 523 {
507 /* emulate sendfile. this is a major pain in the ass */ 524 /* emulate sendfile. this is a major pain in the ass */
508 char *buf = malloc (4096); 525 char buf[4096];
509 res = 0; 526 res = 0;
510 527
511 for (;;) 528 while (count)
512 { 529 {
513 ssize_t cnt; 530 ssize_t cnt;
514 531
515 cnt = pread (ifd, buf, 4096, offset); 532 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
516 533
517 if (cnt <= 0) 534 if (cnt <= 0)
518 { 535 {
519 if (cnt && !res) res = -1; 536 if (cnt && !res) res = -1;
520 break; 537 break;
521 } 538 }
522 539
523 cnt = write (ofd, buf, cnt); 540 cnt = write (ofd, buf, cnt);
524 541
525 if (cnt <= 0) 542 if (cnt <= 0)
526 { 543 {
527 if (cnt && !res) res = -1; 544 if (cnt && !res) res = -1;
528 break; 545 break;
529 } 546 }
530 547
531 offset += cnt; 548 offset += cnt;
532 res += cnt; 549 res += cnt;
550 count -= cnt;
533 } 551 }
534
535 {
536 int errorno = errno;
537 free (buf);
538 errno = errorno;
539 }
540 } 552 }
541 553
542 UNLOCK_FD (ofd);
543
544 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;
545} 619}
546 620
547/*****************************************************************************/ 621/*****************************************************************************/
548 622
549static void * 623static void *
… …
592 666
593 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;
594 case REQ_CLOSE: req->result = close (req->fd); break; 668 case REQ_CLOSE: req->result = close (req->fd); break;
595 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 669 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
596 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;
597 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 673 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
598 674
599 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 675 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
600 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;
601 678
602 case REQ_QUIT: 679 case REQ_QUIT:
603 break; 680 break;
604 681
605 default: 682 default:
… …
629 pthread_mutex_unlock (&reslock); 706 pthread_mutex_unlock (&reslock);
630 } 707 }
631 while (type != REQ_QUIT); 708 while (type != REQ_QUIT);
632 709
633 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 ();
634} 768}
635 769
636#define dREQ \ 770#define dREQ \
637 aio_req req; \ 771 aio_req req; \
638 \ 772 \
… …
649 783
650PROTOTYPES: ENABLE 784PROTOTYPES: ENABLE
651 785
652BOOT: 786BOOT:
653{ 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
654 create_pipe (); 793 create_pipe ();
655 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 794 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
656} 795}
657 796
658void 797void
659min_parallel(nthreads) 798min_parallel (nthreads)
660 int nthreads 799 int nthreads
661 PROTOTYPE: $ 800 PROTOTYPE: $
662 801
663void 802void
664max_parallel(nthreads) 803max_parallel (nthreads)
665 int nthreads 804 int nthreads
666 PROTOTYPE: $ 805 PROTOTYPE: $
667 806
668int 807int
669max_outstanding(nreqs) 808max_outstanding (nreqs)
670 int nreqs 809 int nreqs
671 PROTOTYPE: $ 810 PROTOTYPE: $
672 CODE: 811 CODE:
673 RETVAL = max_outstanding; 812 RETVAL = max_outstanding;
674 max_outstanding = nreqs; 813 max_outstanding = nreqs;
675 814
676void 815void
677aio_open(pathname,flags,mode,callback=&PL_sv_undef) 816aio_open (pathname,flags,mode,callback=&PL_sv_undef)
678 SV * pathname 817 SV * pathname
679 int flags 818 int flags
680 int mode 819 int mode
681 SV * callback 820 SV * callback
682 PROTOTYPE: $$$;$ 821 PROTOTYPE: $$$;$
… …
692 831
693 send_req (req); 832 send_req (req);
694} 833}
695 834
696void 835void
697aio_close(fh,callback=&PL_sv_undef) 836aio_close (fh,callback=&PL_sv_undef)
698 SV * fh 837 SV * fh
699 SV * callback 838 SV * callback
700 PROTOTYPE: $;$ 839 PROTOTYPE: $;$
701 ALIAS: 840 ALIAS:
702 aio_close = REQ_CLOSE 841 aio_close = REQ_CLOSE
… …
712 851
713 send_req (req); 852 send_req (req);
714} 853}
715 854
716void 855void
717aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 856aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
718 SV * fh 857 SV * fh
719 UV offset 858 UV offset
720 UV length 859 UV length
721 SV * data 860 SV * data
722 UV dataoffset 861 UV dataoffset
… …
776 send_req (req); 915 send_req (req);
777 } 916 }
778} 917}
779 918
780void 919void
781aio_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)
782 SV * out_fh 921 SV * out_fh
783 SV * in_fh 922 SV * in_fh
784 UV in_offset 923 UV in_offset
785 UV length 924 UV length
786 SV * callback 925 SV * callback
… …
799 938
800 send_req (req); 939 send_req (req);
801} 940}
802 941
803void 942void
804aio_readahead(fh,offset,length,callback=&PL_sv_undef) 943aio_readahead (fh,offset,length,callback=&PL_sv_undef)
805 SV * fh 944 SV * fh
806 UV offset 945 UV offset
807 IV length 946 IV length
808 SV * callback 947 SV * callback
809 PROTOTYPE: $$$;$ 948 PROTOTYPE: $$$;$
… …
819 958
820 send_req (req); 959 send_req (req);
821} 960}
822 961
823void 962void
824aio_stat(fh_or_path,callback=&PL_sv_undef) 963aio_stat (fh_or_path,callback=&PL_sv_undef)
825 SV * fh_or_path 964 SV * fh_or_path
826 SV * callback 965 SV * callback
827 ALIAS: 966 ALIAS:
828 aio_stat = REQ_STAT 967 aio_stat = REQ_STAT
829 aio_lstat = REQ_LSTAT 968 aio_lstat = REQ_LSTAT
… …
853 992
854 send_req (req); 993 send_req (req);
855} 994}
856 995
857void 996void
858aio_unlink(pathname,callback=&PL_sv_undef) 997aio_unlink (pathname,callback=&PL_sv_undef)
859 SV * pathname 998 SV * pathname
860 SV * callback 999 SV * callback
861 ALIAS: 1000 ALIAS:
862 aio_unlink = REQ_UNLINK 1001 aio_unlink = REQ_UNLINK
863 aio_rmdir = REQ_RMDIR 1002 aio_rmdir = REQ_RMDIR
1003 aio_readdir = REQ_READDIR
864 CODE: 1004 CODE:
865{ 1005{
866 dREQ; 1006 dREQ;
867 1007
868 req->type = ix; 1008 req->type = ix;
… …
871 1011
872 send_req (req); 1012 send_req (req);
873} 1013}
874 1014
875void 1015void
876aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1016aio_link (oldpath,newpath,callback=&PL_sv_undef)
877 SV * oldpath 1017 SV * oldpath
878 SV * newpath 1018 SV * newpath
879 SV * callback 1019 SV * callback
1020 ALIAS:
1021 aio_link = REQ_LINK
1022 aio_symlink = REQ_SYMLINK
1023 aio_rename = REQ_RENAME
880 CODE: 1024 CODE:
881{ 1025{
882 dREQ; 1026 dREQ;
883 1027
884 req->type = REQ_SYMLINK; 1028 req->type = ix;
885 req->fh = newSVsv (oldpath); 1029 req->fh = newSVsv (oldpath);
886 req->data2ptr = SvPVbyte_nolen (req->fh); 1030 req->data2ptr = SvPVbyte_nolen (req->fh);
887 req->data = newSVsv (newpath); 1031 req->data = newSVsv (newpath);
888 req->dataptr = SvPVbyte_nolen (req->data); 1032 req->dataptr = SvPVbyte_nolen (req->data);
889 1033
890 send_req (req); 1034 send_req (req);
891} 1035}
892 1036
1037#if 0
1038
1039# undocumented, because it does not cancel active requests
893void 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
894flush() 1061flush ()
895 PROTOTYPE: 1062 PROTOTYPE:
896 CODE: 1063 CODE:
897 while (nreqs) 1064 while (nreqs)
898 { 1065 {
899 poll_wait (); 1066 poll_wait ();

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