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/cvs/IO-AIO/AIO.xs
Revision: 1.135
Committed: Sun Apr 19 13:06:15 2009 UTC (15 years, 1 month ago) by root
Branch: MAIN
Changes since 1.134: +1 -1 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include "libeio/xthread.h"
2
3 #include <errno.h>
4
5 #include "EXTERN.h"
6 #include "perl.h"
7 #include "XSUB.h"
8
9 #include <stddef.h>
10 #include <stdlib.h>
11 #include <errno.h>
12 #include <sys/types.h>
13 #include <sys/stat.h>
14 #include <limits.h>
15 #include <fcntl.h>
16 #include <sched.h>
17
18 /* perl namespace pollution */
19 #undef VERSION
20
21 #ifdef _WIN32
22
23 # define EIO_STRUCT_DIRENT Direntry_t
24 # undef malloc
25 # undef free
26
27 // perl overrides all those nice win32 functions
28 # undef open
29 # undef read
30 # undef write
31 # undef send
32 # undef recv
33 # undef stat
34 # undef fstat
35 # define lstat stat
36 # undef truncate
37 # undef ftruncate
38 # undef open
39 # undef close
40 # undef unlink
41 # undef rmdir
42 # undef rename
43 # undef lseek
44
45 # define chown(a,b,c) (errno = ENOSYS, -1)
46 # define fchown(a,b,c) (errno = ENOSYS, -1)
47 # define fchmod(a,b) (errno = ENOSYS, -1)
48 # define symlink(a,b) (errno = ENOSYS, -1)
49 # define readlink(a,b,c) (errno = ENOSYS, -1)
50 # define mknod(a,b,c) (errno = ENOSYS, -1)
51 # define truncate(a,b) (errno = ENOSYS, -1)
52 # define ftruncate(fd,o) chsize ((fd), (o))
53 # define fsync(fd) _commit (fd)
54 # define opendir(fd) (errno = ENOSYS, 0)
55 # define readdir(fd) (errno = ENOSYS, -1)
56 # define closedir(fd) (errno = ENOSYS, -1)
57 # define mkdir(a,b) mkdir (a)
58
59 #else
60
61 # include <sys/time.h>
62 # include <sys/select.h>
63 # include <unistd.h>
64 # include <utime.h>
65 # include <signal.h>
66 # define EIO_STRUCT_DIRENT struct dirent
67
68 #endif
69
70 /* perl stupidly overrides readdir and maybe others */
71 /* with thread-unsafe versions, imagine that :( */
72 #undef readdir
73 #undef opendir
74 #undef closedir
75
76 #define EIO_STRUCT_STAT Stat_t
77
78 /* use NV for 32 bit perls as it allows larger offsets */
79 #if IVSIZE >= 8
80 # define SvVAL64 SvIV
81 #else
82 # define SvVAL64 SvNV
83 #endif
84
85 /*****************************************************************************/
86
87 #if __GNUC__ >= 3
88 # define expect(expr,value) __builtin_expect ((expr),(value))
89 #else
90 # define expect(expr,value) (expr)
91 #endif
92
93 #define expect_false(expr) expect ((expr) != 0, 0)
94 #define expect_true(expr) expect ((expr) != 0, 1)
95
96 /*****************************************************************************/
97
98 static HV *stash;
99 typedef SV SV8; /* byte-sv, used for argument-checking */
100
101 #define AIO_REQ_KLASS "IO::AIO::REQ"
102 #define AIO_GRP_KLASS "IO::AIO::GRP"
103
104 #define EIO_REQ_MEMBERS \
105 SV *callback; \
106 SV *sv1, *sv2; \
107 STRLEN stroffset; \
108 SV *self;
109
110 #define EIO_NO_WRAPPERS 1
111
112 #include "libeio/eio.h"
113
114 static int req_invoke (eio_req *req);
115 #define EIO_FINISH(req) req_invoke (req)
116 static void req_destroy (eio_req *grp);
117 #define EIO_DESTROY(req) req_destroy (req)
118
119 enum {
120 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121 };
122
123 #include "libeio/eio.c"
124
125 typedef eio_req *aio_req;
126 typedef eio_req *aio_req_ornot;
127
128 static SV *on_next_submit;
129 static int next_pri = EIO_PRI_DEFAULT;
130 static int max_outstanding;
131
132 static int respipe_osf [2], respipe [2] = { -1, -1 };
133
134 static void req_destroy (aio_req req);
135 static void req_cancel (aio_req req);
136
137 static void want_poll (void)
138 {
139 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
141 }
142
143 static void done_poll (void)
144 {
145 /* read any signals sent by the worker threads */
146 char buf [4];
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149 }
150
151 /* must be called at most once */
152 static SV *req_sv (aio_req req, const char *klass)
153 {
154 if (!req->self)
155 {
156 req->self = (SV *)newHV ();
157 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158 }
159
160 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
161 }
162
163 static aio_req SvAIO_REQ (SV *sv)
164 {
165 MAGIC *mg;
166
167 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))
168 croak ("object of class " AIO_REQ_KLASS " expected");
169
170 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171
172 return mg ? (aio_req)mg->mg_ptr : 0;
173 }
174
175 static void aio_grp_feed (aio_req grp)
176 {
177 if (grp->sv2 && SvOK (grp->sv2))
178 {
179 dSP;
180
181 ENTER;
182 SAVETMPS;
183 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
185 PUTBACK;
186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187 SPAGAIN;
188 FREETMPS;
189 LEAVE;
190 }
191 }
192
193 static void req_submit (eio_req *req)
194 {
195 eio_submit (req);
196
197 if (expect_false (on_next_submit))
198 {
199 dSP;
200 SV *cb = sv_2mortal (on_next_submit);
201
202 on_next_submit = 0;
203
204 PUSHMARK (SP);
205 PUTBACK;
206 call_sv (cb, G_DISCARD | G_EVAL);
207 }
208 }
209
210 static int req_invoke (eio_req *req)
211 {
212 dSP;
213
214 if (req->flags & FLAG_SV2_RO_OFF)
215 SvREADONLY_off (req->sv2);
216
217 if (!EIO_CANCELLED (req) && req->callback)
218 {
219 ENTER;
220 SAVETMPS;
221 PUSHMARK (SP);
222 EXTEND (SP, 1);
223
224 switch (req->type)
225 {
226 case EIO_READDIR:
227 {
228 SV *rv = &PL_sv_undef;
229
230 if (req->result >= 0)
231 {
232 int i;
233 char *buf = req->ptr2;
234 AV *av = newAV ();
235
236 av_extend (av, req->result - 1);
237
238 for (i = 0; i < req->result; ++i)
239 {
240 SV *sv = newSVpv (buf, 0);
241
242 av_store (av, i, sv);
243 buf += SvCUR (sv) + 1;
244 }
245
246 rv = sv_2mortal (newRV_noinc ((SV *)av));
247 }
248
249 PUSHs (rv);
250 }
251 break;
252
253 case EIO_OPEN:
254 {
255 /* convert fd to fh */
256 SV *fh = &PL_sv_undef;
257
258 if (req->result >= 0)
259 {
260 GV *gv = (GV *)sv_newmortal ();
261 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
262 char sym [64];
263 int symlen;
264
265 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
266 gv_init (gv, stash, sym, symlen, 0);
267
268 symlen = snprintf (
269 sym,
270 sizeof (sym),
271 "%s&=%d",
272 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273 req->result
274 );
275
276 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
277 fh = (SV *)gv;
278 }
279
280 PUSHs (fh);
281 }
282 break;
283
284 case EIO_GROUP:
285 req->int1 = 2; /* mark group as finished */
286
287 if (req->sv1)
288 {
289 int i;
290 AV *av = (AV *)req->sv1;
291
292 EXTEND (SP, AvFILL (av) + 1);
293 for (i = 0; i <= AvFILL (av); ++i)
294 PUSHs (*av_fetch (av, i, 0));
295 }
296 break;
297
298 case EIO_NOP:
299 case EIO_BUSY:
300 break;
301
302 case EIO_READLINK:
303 if (req->result > 0)
304 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305 break;
306
307 case EIO_STAT:
308 case EIO_LSTAT:
309 case EIO_FSTAT:
310 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
311 PL_laststatval = req->result;
312 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313 PUSHs (sv_2mortal (newSViv (req->result)));
314 break;
315
316 case EIO_READ:
317 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
318 *SvEND (req->sv2) = 0;
319 PUSHs (sv_2mortal (newSViv (req->result)));
320 break;
321
322 case EIO_DUP2:
323 if (req->result > 0)
324 req->result = 0;
325 /* FALLTHROUGH */
326
327 default:
328 PUSHs (sv_2mortal (newSViv (req->result)));
329 break;
330 }
331
332 errno = req->errorno;
333
334 PUTBACK;
335 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336 SPAGAIN;
337
338 FREETMPS;
339 LEAVE;
340
341 PUTBACK;
342 }
343
344 return !!SvTRUE (ERRSV);
345 }
346
347 static void req_destroy (aio_req req)
348 {
349 if (req->self)
350 {
351 sv_unmagic (req->self, PERL_MAGIC_ext);
352 SvREFCNT_dec (req->self);
353 }
354
355 SvREFCNT_dec (req->sv1);
356 SvREFCNT_dec (req->sv2);
357 SvREFCNT_dec (req->callback);
358
359 Safefree (req);
360 }
361
362 static void req_cancel_subs (aio_req grp)
363 {
364 aio_req sub;
365
366 if (grp->type != EIO_GROUP)
367 return;
368
369 SvREFCNT_dec (grp->sv2);
370 grp->sv2 = 0;
371
372 eio_grp_cancel (grp);
373 }
374
375 #ifdef USE_SOCKETS_AS_HANDLES
376 # define TO_SOCKET(x) (win32_get_osfhandle (x))
377 #else
378 # define TO_SOCKET(x) (x)
379 #endif
380
381 static void
382 create_respipe (void)
383 {
384 int old_readfd = respipe [0];
385
386 if (respipe [1] >= 0)
387 respipe_close (TO_SOCKET (respipe [1]));
388
389 #ifdef _WIN32
390 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
391 #else
392 if (pipe (respipe))
393 #endif
394 croak ("unable to initialize result pipe");
395
396 if (old_readfd >= 0)
397 {
398 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
399 croak ("unable to initialize result pipe(2)");
400
401 respipe_close (respipe [0]);
402 respipe [0] = old_readfd;
403 }
404
405 #ifdef _WIN32
406 int arg = 1;
407 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
408 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
409 #else
410 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
411 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
412 #endif
413 croak ("unable to initialize result pipe(3)");
414
415 respipe_osf [0] = TO_SOCKET (respipe [0]);
416 respipe_osf [1] = TO_SOCKET (respipe [1]);
417 }
418
419 static void poll_wait (void)
420 {
421 fd_set rfd;
422
423 while (eio_nreqs ())
424 {
425 int size;
426
427 X_LOCK (reslock);
428 size = res_queue.size;
429 X_UNLOCK (reslock);
430
431 if (size)
432 return;
433
434 etp_maybe_start_thread ();
435
436 FD_ZERO (&rfd);
437 FD_SET (respipe [0], &rfd);
438
439 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440 }
441 }
442
443 static int poll_cb (void)
444 {
445 for (;;)
446 {
447 int res = eio_poll ();
448
449 if (res > 0)
450 croak (0);
451
452 if (!max_outstanding || max_outstanding > eio_nreqs ())
453 return res;
454
455 poll_wait ();
456 }
457 }
458
459 static void atfork_child (void)
460 {
461 create_respipe ();
462 }
463
464 static SV *
465 get_cb (SV *cb_sv)
466 {
467 HV *st;
468 GV *gvp;
469 CV *cv;
470
471 if (!SvOK (cb_sv))
472 return 0;
473
474 cv = sv_2cv (cb_sv, &st, &gvp, 0);
475
476 if (!cv)
477 croak ("IO::AIO callback must be undef or a CODE reference");
478
479 return (SV *)cv;
480 }
481
482 #define dREQ \
483 SV *cb_cv; \
484 aio_req req; \
485 int req_pri = next_pri; \
486 next_pri = EIO_PRI_DEFAULT; \
487 \
488 cb_cv = get_cb (callback); \
489 \
490 Newz (0, req, 1, eio_req); \
491 if (!req) \
492 croak ("out of memory during eio_req allocation"); \
493 \
494 req->callback = SvREFCNT_inc (cb_cv); \
495 req->pri = req_pri
496
497 #define REQ_SEND \
498 PUTBACK; \
499 req_submit (req); \
500 SPAGAIN; \
501 \
502 if (GIMME_V != G_VOID) \
503 XPUSHs (req_sv (req, AIO_REQ_KLASS));
504
505 MODULE = IO::AIO PACKAGE = IO::AIO
506
507 PROTOTYPES: ENABLE
508
509 BOOT:
510 {
511 stash = gv_stashpv ("IO::AIO", 1);
512
513 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
514 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
515 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
516 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
517 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
518 #ifndef _WIN32
519 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
520 #endif
521 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522 newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));
523 newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));
524 newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
525
526 create_respipe ();
527
528 if (eio_init (want_poll, done_poll) < 0)
529 croak ("IO::AIO: unable to initialise eio library");
530
531 /* atfork child called in fifo order, so before eio's handler */
532 X_THREAD_ATFORK (0, 0, atfork_child);
533 }
534
535 void
536 max_poll_reqs (int nreqs)
537 PROTOTYPE: $
538 CODE:
539 eio_set_max_poll_reqs (nreqs);
540
541 void
542 max_poll_time (double nseconds)
543 PROTOTYPE: $
544 CODE:
545 eio_set_max_poll_time (nseconds);
546
547 void
548 min_parallel (int nthreads)
549 PROTOTYPE: $
550 CODE:
551 eio_set_min_parallel (nthreads);
552
553 void
554 max_parallel (int nthreads)
555 PROTOTYPE: $
556 CODE:
557 eio_set_max_parallel (nthreads);
558
559 void
560 max_idle (int nthreads)
561 PROTOTYPE: $
562 CODE:
563 eio_set_max_idle (nthreads);
564
565 void
566 max_outstanding (int maxreqs)
567 PROTOTYPE: $
568 CODE:
569 max_outstanding = maxreqs;
570
571 void
572 aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
573 PROTOTYPE: $$$;$
574 PPCODE:
575 {
576 dREQ;
577
578 req->type = EIO_OPEN;
579 req->sv1 = newSVsv (pathname);
580 req->ptr1 = SvPVbyte_nolen (req->sv1);
581 req->int1 = flags;
582 req->int2 = mode;
583
584 REQ_SEND;
585 }
586
587 void
588 aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
589 PROTOTYPE: $;$
590 ALIAS:
591 aio_fsync = EIO_FSYNC
592 aio_fdatasync = EIO_FDATASYNC
593 PPCODE:
594 {
595 dREQ;
596
597 req->type = ix;
598 req->sv1 = newSVsv (fh);
599 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
600
601 REQ_SEND (req);
602 }
603
604 void
605 aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)
606 PROTOTYPE: $$$$;$
607 PPCODE:
608 {
609 dREQ;
610
611 req->type = EIO_SYNC_FILE_RANGE;
612 req->sv1 = newSVsv (fh);
613 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
614 req->offs = SvVAL64 (offset);
615 req->size = SvVAL64 (nbytes);
616 req->int2 = flags;
617
618 REQ_SEND (req);
619 }
620
621 void
622 aio_close (SV *fh, SV *callback=&PL_sv_undef)
623 PROTOTYPE: $;$
624 PPCODE:
625 {
626 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
627 dREQ;
628
629 if (close_pipe < 0)
630 {
631 int pipefd [2];
632
633 if (pipe (pipefd) < 0
634 || close (pipefd [1]) < 0
635 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
636 abort (); /*D*/
637
638 close_pipe = pipefd [0];
639 }
640
641 req->type = EIO_DUP2;
642 req->int1 = close_pipe;
643 req->sv2 = newSVsv (fh);
644 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));
645
646 REQ_SEND (req);
647 }
648
649 void
650 aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
651 ALIAS:
652 aio_read = EIO_READ
653 aio_write = EIO_WRITE
654 PROTOTYPE: $$$$$;$
655 PPCODE:
656 {
657 STRLEN svlen;
658 char *svptr = SvPVbyte (data, svlen);
659 UV len = SvUV (length);
660 int fd;
661
662 if (SvTYPE (data) > SVt_PVMG)
663 croak ("illegal data argument '%s', must be plain scalar string", SvPV_nolen (data));
664
665 SvUPGRADE (data, SVt_PV);
666 SvPOK_only (data);
667
668 if (dataoffset < 0)
669 dataoffset += svlen;
670
671 if (dataoffset < 0 || dataoffset > svlen)
672 croak ("dataoffset outside of data scalar");
673
674 if (ix == EIO_WRITE)
675 {
676 /* write: check length and adjust. */
677 if (!SvOK (length) || len + dataoffset > svlen)
678 len = svlen - dataoffset;
679 }
680 else
681 {
682 /* read: grow scalar as necessary */
683 svptr = SvGROW (data, len + dataoffset + 1);
684 }
685
686 if (len < 0)
687 croak ("length must not be negative");
688
689 fd = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
690 : IoOFP (sv_2io (fh)));
691
692 if (fd < 0)
693 croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
694
695 {
696 dREQ;
697
698 req->type = ix;
699 req->sv1 = newSVsv (fh);
700 req->int1 = fd;
701 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
702 req->size = len;
703 req->sv2 = SvREFCNT_inc (data);
704 req->ptr2 = (char *)svptr + dataoffset;
705 req->stroffset = dataoffset;
706
707 if (!SvREADONLY (data))
708 {
709 SvREADONLY_on (data);
710 req->flags |= FLAG_SV2_RO_OFF;
711 }
712
713 REQ_SEND;
714 }
715 }
716
717 void
718 aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
719 PROTOTYPE: $$;$
720 PPCODE:
721 {
722 SV *data;
723 dREQ;
724
725 req->type = EIO_READLINK;
726 req->sv1 = newSVsv (path);
727 req->ptr1 = SvPVbyte_nolen (req->sv1);
728
729 REQ_SEND;
730 }
731
732 void
733 aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
734 PROTOTYPE: $$$$;$
735 PPCODE:
736 {
737 dREQ;
738
739 req->type = EIO_SENDFILE;
740 req->sv1 = newSVsv (out_fh);
741 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
742 req->sv2 = newSVsv (in_fh);
743 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
744 req->offs = SvVAL64 (in_offset);
745 req->size = length;
746
747 REQ_SEND;
748 }
749
750 void
751 aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
752 PROTOTYPE: $$$;$
753 PPCODE:
754 {
755 dREQ;
756
757 req->type = EIO_READAHEAD;
758 req->sv1 = newSVsv (fh);
759 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
760 req->offs = SvVAL64 (offset);
761 req->size = length;
762
763 REQ_SEND;
764 }
765
766 void
767 aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
768 ALIAS:
769 aio_stat = EIO_STAT
770 aio_lstat = EIO_LSTAT
771 PPCODE:
772 {
773 dREQ;
774
775 req->sv1 = newSVsv (fh_or_path);
776
777 if (SvPOK (req->sv1))
778 {
779 req->type = ix;
780 req->ptr1 = SvPVbyte_nolen (req->sv1);
781 }
782 else
783 {
784 req->type = EIO_FSTAT;
785 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
786 }
787
788 REQ_SEND;
789 }
790
791 void
792 aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
793 PPCODE:
794 {
795 dREQ;
796
797 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
798 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
799 req->sv1 = newSVsv (fh_or_path);
800
801 if (SvPOK (req->sv1))
802 {
803 req->type = EIO_UTIME;
804 req->ptr1 = SvPVbyte_nolen (req->sv1);
805 }
806 else
807 {
808 req->type = EIO_FUTIME;
809 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
810 }
811
812 REQ_SEND;
813 }
814
815 void
816 aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
817 PPCODE:
818 {
819 dREQ;
820
821 req->sv1 = newSVsv (fh_or_path);
822 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
823
824 if (SvPOK (req->sv1))
825 {
826 req->type = EIO_TRUNCATE;
827 req->ptr1 = SvPVbyte_nolen (req->sv1);
828 }
829 else
830 {
831 req->type = EIO_FTRUNCATE;
832 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
833 }
834
835 REQ_SEND;
836 }
837
838 void
839 aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
840 ALIAS:
841 aio_chmod = EIO_CHMOD
842 aio_mkdir = EIO_MKDIR
843 PPCODE:
844 {
845 dREQ;
846
847 req->int2 = mode;
848 req->sv1 = newSVsv (fh_or_path);
849
850 if (SvPOK (req->sv1))
851 {
852 req->type = ix;
853 req->ptr1 = SvPVbyte_nolen (req->sv1);
854 }
855 else
856 {
857 req->type = EIO_FCHMOD;
858 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
859 }
860
861 REQ_SEND;
862 }
863
864 void
865 aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
866 PPCODE:
867 {
868 dREQ;
869
870 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
871 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
872 req->sv1 = newSVsv (fh_or_path);
873
874 if (SvPOK (req->sv1))
875 {
876 req->type = EIO_CHOWN;
877 req->ptr1 = SvPVbyte_nolen (req->sv1);
878 }
879 else
880 {
881 req->type = EIO_FCHOWN;
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 }
884
885 REQ_SEND;
886 }
887
888 void
889 aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
890 ALIAS:
891 aio_unlink = EIO_UNLINK
892 aio_rmdir = EIO_RMDIR
893 aio_readdir = EIO_READDIR
894 PPCODE:
895 {
896 dREQ;
897
898 req->type = ix;
899 req->sv1 = newSVsv (pathname);
900 req->ptr1 = SvPVbyte_nolen (req->sv1);
901
902 REQ_SEND;
903 }
904
905 void
906 aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
907 ALIAS:
908 aio_link = EIO_LINK
909 aio_symlink = EIO_SYMLINK
910 aio_rename = EIO_RENAME
911 PPCODE:
912 {
913 dREQ;
914
915 req->type = ix;
916 req->sv1 = newSVsv (oldpath);
917 req->ptr1 = SvPVbyte_nolen (req->sv1);
918 req->sv2 = newSVsv (newpath);
919 req->ptr2 = SvPVbyte_nolen (req->sv2);
920
921 REQ_SEND;
922 }
923
924 void
925 aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
926 PPCODE:
927 {
928 dREQ;
929
930 req->type = EIO_MKNOD;
931 req->sv1 = newSVsv (pathname);
932 req->ptr1 = SvPVbyte_nolen (req->sv1);
933 req->int2 = (mode_t)mode;
934 req->offs = dev;
935
936 REQ_SEND;
937 }
938
939 void
940 aio_busy (double delay, SV *callback=&PL_sv_undef)
941 PPCODE:
942 {
943 dREQ;
944
945 req->type = EIO_BUSY;
946 req->nv1 = delay < 0. ? 0. : delay;
947
948 REQ_SEND;
949 }
950
951 void
952 aio_group (SV *callback=&PL_sv_undef)
953 PROTOTYPE: ;$
954 PPCODE:
955 {
956 dREQ;
957
958 req->type = EIO_GROUP;
959
960 req_submit (req);
961 XPUSHs (req_sv (req, AIO_GRP_KLASS));
962 }
963
964 void
965 aio_nop (SV *callback=&PL_sv_undef)
966 ALIAS:
967 aio_nop = EIO_NOP
968 aio_sync = EIO_SYNC
969 PPCODE:
970 {
971 dREQ;
972
973 req->type = ix;
974
975 REQ_SEND;
976 }
977
978 int
979 aioreq_pri (int pri = 0)
980 PROTOTYPE: ;$
981 CODE:
982 RETVAL = next_pri;
983 if (items > 0)
984 {
985 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
986 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
987 next_pri = pri;
988 }
989 OUTPUT:
990 RETVAL
991
992 void
993 aioreq_nice (int nice = 0)
994 CODE:
995 nice = next_pri - nice;
996 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
997 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
998 next_pri = nice;
999
1000 void
1001 flush ()
1002 PROTOTYPE:
1003 CODE:
1004 while (eio_nreqs ())
1005 {
1006 poll_wait ();
1007 poll_cb ();
1008 }
1009
1010 int
1011 poll()
1012 PROTOTYPE:
1013 CODE:
1014 poll_wait ();
1015 RETVAL = poll_cb ();
1016 OUTPUT:
1017 RETVAL
1018
1019 int
1020 poll_fileno()
1021 PROTOTYPE:
1022 CODE:
1023 RETVAL = respipe [0];
1024 OUTPUT:
1025 RETVAL
1026
1027 int
1028 poll_cb(...)
1029 PROTOTYPE:
1030 CODE:
1031 RETVAL = poll_cb ();
1032 OUTPUT:
1033 RETVAL
1034
1035 void
1036 poll_wait()
1037 PROTOTYPE:
1038 CODE:
1039 poll_wait ();
1040
1041 int
1042 nreqs()
1043 PROTOTYPE:
1044 CODE:
1045 RETVAL = eio_nreqs ();
1046 OUTPUT:
1047 RETVAL
1048
1049 int
1050 nready()
1051 PROTOTYPE:
1052 CODE:
1053 RETVAL = eio_nready ();
1054 OUTPUT:
1055 RETVAL
1056
1057 int
1058 npending()
1059 PROTOTYPE:
1060 CODE:
1061 RETVAL = eio_npending ();
1062 OUTPUT:
1063 RETVAL
1064
1065 int
1066 nthreads()
1067 PROTOTYPE:
1068 CODE:
1069 RETVAL = eio_nthreads ();
1070 OUTPUT:
1071 RETVAL
1072
1073 void _on_next_submit (SV *cb)
1074 CODE:
1075 SvREFCNT_dec (on_next_submit);
1076 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1077
1078 PROTOTYPES: DISABLE
1079
1080 MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1081
1082 void
1083 cancel (aio_req_ornot req)
1084 CODE:
1085 eio_cancel (req);
1086
1087 void
1088 cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1089 PPCODE:
1090 {
1091 if (GIMME_V != G_VOID)
1092 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1093
1094 if (items > 1)
1095 {
1096 SV *cb_cv = get_cb (callback);
1097
1098 SvREFCNT_dec (req->callback);
1099 req->callback = SvREFCNT_inc (cb_cv);
1100 }
1101 }
1102
1103 MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1104
1105 void
1106 add (aio_req grp, ...)
1107 PPCODE:
1108 {
1109 int i;
1110
1111 if (grp->int1 == 2)
1112 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1113
1114 for (i = 1; i < items; ++i )
1115 {
1116 aio_req req;
1117
1118 if (GIMME_V != G_VOID)
1119 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1120
1121 req = SvAIO_REQ (ST (i));
1122
1123 if (req)
1124 eio_grp_add (grp, req);
1125 }
1126 }
1127
1128 void
1129 cancel_subs (aio_req_ornot req)
1130 CODE:
1131 req_cancel_subs (req);
1132
1133 void
1134 result (aio_req grp, ...)
1135 CODE:
1136 {
1137 int i;
1138 AV *av;
1139
1140 grp->errorno = errno;
1141
1142 av = newAV ();
1143
1144 for (i = 1; i < items; ++i )
1145 av_push (av, newSVsv (ST (i)));
1146
1147 SvREFCNT_dec (grp->sv1);
1148 grp->sv1 = (SV *)av;
1149 }
1150
1151 void
1152 errno (aio_req grp, int errorno = errno)
1153 CODE:
1154 grp->errorno = errorno;
1155
1156 void
1157 limit (aio_req grp, int limit)
1158 CODE:
1159 eio_grp_limit (grp, limit);
1160
1161 void
1162 feed (aio_req grp, SV *callback=&PL_sv_undef)
1163 CODE:
1164 {
1165 SvREFCNT_dec (grp->sv2);
1166 grp->sv2 = newSVsv (callback);
1167 grp->feed = aio_grp_feed;
1168
1169 if (grp->int2 <= 0)
1170 grp->int2 = 2;
1171
1172 eio_grp_limit (grp, grp->int2);
1173 }
1174