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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.84 by root, Sat Oct 28 01:24:19 2006 UTC vs.
Revision 1.97 by root, Sun Jan 7 22:59:57 2007 UTC

… …
17#include "autoconf/config.h" 17#include "autoconf/config.h"
18 18
19#include <pthread.h> 19#include <pthread.h>
20 20
21#include <stddef.h> 21#include <stddef.h>
22#include <stdlib.h>
22#include <errno.h> 23#include <errno.h>
23#include <sys/time.h> 24#include <sys/time.h>
24#include <sys/select.h> 25#include <sys/select.h>
25#include <sys/types.h> 26#include <sys/types.h>
26#include <sys/stat.h> 27#include <sys/stat.h>
… …
68 69
69/* wether word reads are potentially non-atomic. 70/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs 71 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes. 72 * on have atomic word read/writes.
72 */ 73 */
73#ifndef WORDREAD_UNSAFE 74#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64 75# if __i386 || __x86_64
75# define WORDREAD_UNSAFE 0 76# define WORDACCESS_UNSAFE 0
76# else 77# else
77# define WORDREAD_UNSAFE 1 78# define WORDACCESS_UNSAFE 1
78# endif 79# endif
79#endif 80#endif
80 81
81/* buffer size for various temporary buffers */ 82/* buffer size for various temporary buffers */
82#define AIO_BUFSIZE 65536 83#define AIO_BUFSIZE 65536
… …
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 88 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \ 89 UNLOCK (wrklock); \
89 if (!aio_buf) \ 90 if (!aio_buf) \
90 return -1; 91 return -1;
91 92
93typedef SV SV8; /* byte-sv, used for argument-checking */
94
92enum { 95enum {
93 REQ_QUIT, 96 REQ_QUIT,
94 REQ_OPEN, REQ_CLOSE, 97 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD, 98 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE, 99 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 100 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC, 101 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 102 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR, 103 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK, 104 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102 REQ_GROUP, REQ_NOP, 105 REQ_GROUP, REQ_NOP,
103 REQ_BUSY, 106 REQ_BUSY,
104}; 107};
105 108
106#define AIO_REQ_KLASS "IO::AIO::REQ" 109#define AIO_REQ_KLASS "IO::AIO::REQ"
… …
108 111
109typedef struct aio_cb 112typedef struct aio_cb
110{ 113{
111 struct aio_cb *volatile next; 114 struct aio_cb *volatile next;
112 115
113 SV *data, *callback; 116 SV *callback, *fh;
114 SV *fh, *fh2; 117 SV *sv1, *sv2;
115 void *dataptr, *data2ptr; 118 void *ptr1, *ptr2;
116 Stat_t *statdata;
117 off_t offset; 119 off_t offs;
118 size_t length; 120 size_t size;
119 ssize_t result; 121 ssize_t result;
120 122
121 STRLEN dataoffset; 123 STRLEN stroffset;
122 int type; 124 int type;
123 int fd, fd2; 125 int int1, int2;
124 int errorno; 126 int errorno;
125 mode_t mode; /* open */ 127 mode_t mode; /* open */
126 128
127 unsigned char flags; 129 unsigned char flags;
128 unsigned char pri; 130 unsigned char pri;
… …
130 SV *self; /* the perl counterpart of this request, if any */ 132 SV *self; /* the perl counterpart of this request, if any */
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 133 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132} aio_cb; 134} aio_cb;
133 135
134enum { 136enum {
135 FLAG_CANCELLED = 0x01, 137 FLAG_CANCELLED = 0x01, /* request was cancelled */
138 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
139 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
136}; 140};
137 141
138typedef aio_cb *aio_req; 142typedef aio_cb *aio_req;
139typedef aio_cb *aio_req_ornot; 143typedef aio_cb *aio_req_ornot;
140 144
… …
144 148
145 DEFAULT_PRI = 0, 149 DEFAULT_PRI = 0,
146 PRI_BIAS = -PRI_MIN, 150 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 151 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148}; 152};
153
154#define AIO_TICKS ((1000000 + 1023) >> 10)
155
156static unsigned int max_poll_time = 0;
157static unsigned int max_poll_reqs = 0;
158
159/* calculcate time difference in ~1/AIO_TICKS of a second */
160static int tvdiff (struct timeval *tv1, struct timeval *tv2)
161{
162 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
163 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
164}
165
166static pthread_t main_tid;
167static int main_sig;
168static int block_sig_level;
169
170void block_sig ()
171{
172 sigset_t ss;
173
174 if (block_sig_level++)
175 return;
176
177 if (!main_sig)
178 return;
179
180 sigemptyset (&ss);
181 sigaddset (&ss, main_sig);
182 pthread_sigmask (SIG_BLOCK, &ss, 0);
183}
184
185void unblock_sig ()
186{
187 sigset_t ss;
188
189 if (--block_sig_level)
190 return;
191
192 if (!main_sig)
193 return;
194
195 sigemptyset (&ss);
196 sigaddset (&ss, main_sig);
197 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
198}
149 199
150static int next_pri = DEFAULT_PRI + PRI_BIAS; 200static int next_pri = DEFAULT_PRI + PRI_BIAS;
151 201
152static unsigned int started, idle, wanted; 202static unsigned int started, idle, wanted;
153 203
… …
207 257
208static pthread_mutex_t reslock = AIO_MUTEX_INIT; 258static pthread_mutex_t reslock = AIO_MUTEX_INIT;
209static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 259static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
210static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 260static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
211 261
212#if WORDREAD_UNSAFE 262#if WORDACCESS_UNSAFE
213 263
214static unsigned int get_nready () 264static unsigned int get_nready ()
215{ 265{
216 unsigned int retval; 266 unsigned int retval;
217 267
… …
231 UNLOCK (reslock); 281 UNLOCK (reslock);
232 282
233 return retval; 283 return retval;
234} 284}
235 285
286static unsigned int get_nthreads ()
287{
288 unsigned int retval;
289
290 LOCK (wrklock);
291 retval = started;
292 UNLOCK (wrklock);
293
294 return retval;
295}
296
236#else 297#else
237 298
238# define get_nready() nready 299# define get_nready() nready
239# define get_npending() npending 300# define get_npending() npending
301# define get_nthreads() started
240 302
241#endif 303#endif
242 304
243/* 305/*
244 * a somewhat faster data structure might be nice, but 306 * a somewhat faster data structure might be nice, but
… …
292 } 354 }
293 355
294 abort (); 356 abort ();
295} 357}
296 358
297static int poll_cb (int max); 359static int poll_cb ();
298static void req_invoke (aio_req req); 360static int req_invoke (aio_req req);
299static void req_free (aio_req req); 361static void req_free (aio_req req);
300static void req_cancel (aio_req req); 362static void req_cancel (aio_req req);
301 363
302/* must be called at most once */ 364/* must be called at most once */
303static SV *req_sv (aio_req req, const char *klass) 365static SV *req_sv (aio_req req, const char *klass)
… …
323 return mg ? (aio_req)mg->mg_ptr : 0; 385 return mg ? (aio_req)mg->mg_ptr : 0;
324} 386}
325 387
326static void aio_grp_feed (aio_req grp) 388static void aio_grp_feed (aio_req grp)
327{ 389{
390 block_sig ();
391
328 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 392 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
329 { 393 {
330 int old_len = grp->length; 394 int old_len = grp->size;
331 395
332 if (grp->fh2 && SvOK (grp->fh2)) 396 if (grp->sv2 && SvOK (grp->sv2))
333 { 397 {
334 dSP; 398 dSP;
335 399
336 ENTER; 400 ENTER;
337 SAVETMPS; 401 SAVETMPS;
338 PUSHMARK (SP); 402 PUSHMARK (SP);
339 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 403 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
340 PUTBACK; 404 PUTBACK;
341 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 405 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
342 SPAGAIN; 406 SPAGAIN;
343 FREETMPS; 407 FREETMPS;
344 LEAVE; 408 LEAVE;
345 } 409 }
346 410
347 /* stop if no progress has been made */ 411 /* stop if no progress has been made */
348 if (old_len == grp->length) 412 if (old_len == grp->size)
349 { 413 {
350 SvREFCNT_dec (grp->fh2); 414 SvREFCNT_dec (grp->sv2);
351 grp->fh2 = 0; 415 grp->sv2 = 0;
352 break; 416 break;
353 } 417 }
354 } 418 }
419
420 unblock_sig ();
355} 421}
356 422
357static void aio_grp_dec (aio_req grp) 423static void aio_grp_dec (aio_req grp)
358{ 424{
359 --grp->length; 425 --grp->size;
360 426
361 /* call feeder, if applicable */ 427 /* call feeder, if applicable */
362 aio_grp_feed (grp); 428 aio_grp_feed (grp);
363 429
364 /* finish, if done */ 430 /* finish, if done */
365 if (!grp->length && grp->fd) 431 if (!grp->size && grp->int1)
366 { 432 {
433 block_sig ();
434
367 req_invoke (grp); 435 if (!req_invoke (grp))
436 {
437 req_free (grp);
438 unblock_sig ();
439 croak (0);
440 }
441
368 req_free (grp); 442 req_free (grp);
443 unblock_sig ();
369 } 444 }
370} 445}
371 446
372static void req_invoke (aio_req req) 447static int req_invoke (aio_req req)
373{ 448{
374 dSP; 449 dSP;
450
451 if (req->flags & FLAG_SV1_RO_OFF)
452 SvREADONLY_off (req->sv1);
375 453
376 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 454 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
377 { 455 {
378 ENTER; 456 ENTER;
379 SAVETMPS; 457 SAVETMPS;
… …
387 SV *rv = &PL_sv_undef; 465 SV *rv = &PL_sv_undef;
388 466
389 if (req->result >= 0) 467 if (req->result >= 0)
390 { 468 {
391 int i; 469 int i;
392 char *buf = req->data2ptr; 470 char *buf = req->ptr2;
393 AV *av = newAV (); 471 AV *av = newAV ();
394 472
395 av_extend (av, req->result - 1); 473 av_extend (av, req->result - 1);
396 474
397 for (i = 0; i < req->result; ++i) 475 for (i = 0; i < req->result; ++i)
… …
417 PUSHs (sv_2mortal (newSViv (req->result))); 495 PUSHs (sv_2mortal (newSViv (req->result)));
418 PUTBACK; 496 PUTBACK;
419 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 497 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
420 SPAGAIN; 498 SPAGAIN;
421 499
422 fh = SvREFCNT_inc (POPs); 500 fh = POPs;
423
424 PUSHMARK (SP); 501 PUSHMARK (SP);
425 XPUSHs (sv_2mortal (fh)); 502 XPUSHs (fh);
426 } 503 }
427 break; 504 break;
428 505
429 case REQ_GROUP: 506 case REQ_GROUP:
430 req->fd = 2; /* mark group as finished */ 507 req->int1 = 2; /* mark group as finished */
431 508
432 if (req->data) 509 if (req->sv1)
433 { 510 {
434 int i; 511 int i;
435 AV *av = (AV *)req->data; 512 AV *av = (AV *)req->sv1;
436 513
437 EXTEND (SP, AvFILL (av) + 1); 514 EXTEND (SP, AvFILL (av) + 1);
438 for (i = 0; i <= AvFILL (av); ++i) 515 for (i = 0; i <= AvFILL (av); ++i)
439 PUSHs (*av_fetch (av, i, 0)); 516 PUSHs (*av_fetch (av, i, 0));
440 } 517 }
… …
442 519
443 case REQ_NOP: 520 case REQ_NOP:
444 case REQ_BUSY: 521 case REQ_BUSY:
445 break; 522 break;
446 523
524 case REQ_READLINK:
525 if (req->result > 0)
526 {
527 SvCUR_set (req->sv1, req->result);
528 *SvEND (req->sv1) = 0;
529 PUSHs (req->sv1);
530 }
531 break;
532
533 case REQ_STAT:
534 case REQ_LSTAT:
535 case REQ_FSTAT:
536 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
537 PL_laststatval = req->result;
538 PL_statcache = *(Stat_t *)(req->ptr2);
539 PUSHs (sv_2mortal (newSViv (req->result)));
540 break;
541
542 case REQ_READ:
543 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
544 *SvEND (req->sv1) = 0;
545 PUSHs (sv_2mortal (newSViv (req->result)));
546 break;
547
447 default: 548 default:
448 PUSHs (sv_2mortal (newSViv (req->result))); 549 PUSHs (sv_2mortal (newSViv (req->result)));
449 break; 550 break;
450 } 551 }
451 552
… …
471 grp->grp_first = req->grp_next; 572 grp->grp_first = req->grp_next;
472 573
473 aio_grp_dec (grp); 574 aio_grp_dec (grp);
474 } 575 }
475 576
476 if (SvTRUE (ERRSV)) 577 return !SvTRUE (ERRSV);
477 {
478 req_free (req);
479 croak (0);
480 }
481} 578}
482 579
483static void req_free (aio_req req) 580static void req_free (aio_req req)
484{ 581{
485 if (req->self) 582 if (req->self)
486 { 583 {
487 sv_unmagic (req->self, PERL_MAGIC_ext); 584 sv_unmagic (req->self, PERL_MAGIC_ext);
488 SvREFCNT_dec (req->self); 585 SvREFCNT_dec (req->self);
489 } 586 }
490 587
491 SvREFCNT_dec (req->data);
492 SvREFCNT_dec (req->fh); 588 SvREFCNT_dec (req->fh);
589 SvREFCNT_dec (req->sv1);
493 SvREFCNT_dec (req->fh2); 590 SvREFCNT_dec (req->sv2);
494 SvREFCNT_dec (req->callback); 591 SvREFCNT_dec (req->callback);
495 Safefree (req->statdata);
496 592
497 if (req->type == REQ_READDIR) 593 if (req->flags & FLAG_PTR2_FREE)
498 free (req->data2ptr); 594 free (req->ptr2);
499 595
500 Safefree (req); 596 Safefree (req);
501} 597}
502 598
503static void req_cancel_subs (aio_req grp) 599static void req_cancel_subs (aio_req grp)
… …
505 aio_req sub; 601 aio_req sub;
506 602
507 if (grp->type != REQ_GROUP) 603 if (grp->type != REQ_GROUP)
508 return; 604 return;
509 605
510 SvREFCNT_dec (grp->fh2); 606 SvREFCNT_dec (grp->sv2);
511 grp->fh2 = 0; 607 grp->sv2 = 0;
512 608
513 for (sub = grp->grp_first; sub; sub = sub->grp_next) 609 for (sub = grp->grp_first; sub; sub = sub->grp_next)
514 req_cancel (sub); 610 req_cancel (sub);
515} 611}
516 612
… …
541#endif 637#endif
542 638
543 sigfillset (&fullsigset); 639 sigfillset (&fullsigset);
544 640
545 LOCK (wrklock); 641 LOCK (wrklock);
546 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); 642 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
547 643
548 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) 644 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
549 { 645 {
550 wrk->prev = &wrk_first; 646 wrk->prev = &wrk_first;
551 wrk->next = wrk_first.next; 647 wrk->next = wrk_first.next;
… …
554 ++started; 650 ++started;
555 } 651 }
556 else 652 else
557 free (wrk); 653 free (wrk);
558 654
559 sigprocmask (SIG_SETMASK, &oldsigset, 0); 655 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
560 UNLOCK (wrklock); 656 UNLOCK (wrklock);
561} 657}
562 658
563static void maybe_start_thread () 659static void maybe_start_thread ()
564{ 660{
565 if (started >= wanted) 661 if (get_nthreads () >= wanted)
566 return; 662 return;
567 663
568 /* todo: maybe use idle here, but might be less exact */ 664 /* todo: maybe use idle here, but might be less exact */
569 if ((int)nready <= (int)started - (int)(nreqs - get_nready () - get_npending ())) 665 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
570 return; 666 return;
571 667
572 start_thread (); 668 start_thread ();
573} 669}
574 670
575static void req_send (aio_req req) 671static void req_send (aio_req req)
576{ 672{
673 block_sig ();
674
577 ++nreqs; 675 ++nreqs;
578 676
579 LOCK (reqlock); 677 LOCK (reqlock);
580 ++nready; 678 ++nready;
581 reqq_push (&req_queue, req); 679 reqq_push (&req_queue, req);
582 pthread_cond_signal (&reqwait); 680 pthread_cond_signal (&reqwait);
583 UNLOCK (reqlock); 681 UNLOCK (reqlock);
584 682
683 unblock_sig ();
684
585 maybe_start_thread (); 685 maybe_start_thread ();
586} 686}
587 687
588static void end_thread (void) 688static void end_thread (void)
589{ 689{
… …
602 LOCK (wrklock); 702 LOCK (wrklock);
603 --started; 703 --started;
604 UNLOCK (wrklock); 704 UNLOCK (wrklock);
605} 705}
606 706
707static void set_max_idle (int nthreads)
708{
709 if (WORDACCESS_UNSAFE) LOCK (reqlock);
710 max_idle = nthreads <= 0 ? 1 : nthreads;
711 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
712}
713
607static void min_parallel (int nthreads) 714static void min_parallel (int nthreads)
608{ 715{
609 if (wanted < nthreads) 716 if (wanted < nthreads)
610 wanted = nthreads; 717 wanted = nthreads;
611} 718}
… …
624 fd_set rfd; 731 fd_set rfd;
625 732
626 while (nreqs) 733 while (nreqs)
627 { 734 {
628 int size; 735 int size;
629 if (WORDREAD_UNSAFE) LOCK (reslock); 736 if (WORDACCESS_UNSAFE) LOCK (reslock);
630 size = res_queue.size; 737 size = res_queue.size;
631 if (WORDREAD_UNSAFE) UNLOCK (reslock); 738 if (WORDACCESS_UNSAFE) UNLOCK (reslock);
632 739
633 if (size) 740 if (size)
634 return; 741 return;
635 742
636 maybe_start_thread (); 743 maybe_start_thread ();
… …
640 747
641 select (respipe [0] + 1, &rfd, 0, 0, 0); 748 select (respipe [0] + 1, &rfd, 0, 0, 0);
642 } 749 }
643} 750}
644 751
645static int poll_cb (int max) 752static int poll_cb ()
646{ 753{
647 dSP; 754 dSP;
648 int count = 0; 755 int count = 0;
756 int maxreqs = max_poll_reqs;
649 int do_croak = 0; 757 int do_croak = 0;
758 struct timeval tv_start, tv_now;
650 aio_req req; 759 aio_req req;
760
761 if (max_poll_time)
762 gettimeofday (&tv_start, 0);
763
764 block_sig ();
651 765
652 for (;;) 766 for (;;)
653 { 767 {
654 while (max <= 0 || count < max) 768 for (;;)
655 { 769 {
656 maybe_start_thread (); 770 maybe_start_thread ();
657 771
658 LOCK (reslock); 772 LOCK (reslock);
659 req = reqq_shift (&res_queue); 773 req = reqq_shift (&res_queue);
… …
663 --npending; 777 --npending;
664 778
665 if (!res_queue.size) 779 if (!res_queue.size)
666 { 780 {
667 /* read any signals sent by the worker threads */ 781 /* read any signals sent by the worker threads */
668 char buf [32]; 782 char buf [4];
669 while (read (respipe [0], buf, 32) == 32) 783 while (read (respipe [0], buf, 4) == 4)
670 ; 784 ;
671 } 785 }
672 } 786 }
673 787
674 UNLOCK (reslock); 788 UNLOCK (reslock);
… …
676 if (!req) 790 if (!req)
677 break; 791 break;
678 792
679 --nreqs; 793 --nreqs;
680 794
681 if (req->type == REQ_GROUP && req->length) 795 if (req->type == REQ_GROUP && req->size)
682 { 796 {
683 req->fd = 1; /* mark request as delayed */ 797 req->int1 = 1; /* mark request as delayed */
684 continue; 798 continue;
685 } 799 }
686 else 800 else
687 { 801 {
688 if (req->type == REQ_READ) 802 if (!req_invoke (req))
689 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
690
691 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
692 SvREADONLY_off (req->data);
693
694 if (req->statdata)
695 { 803 {
696 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 804 req_free (req);
697 PL_laststatval = req->result; 805 unblock_sig ();
698 PL_statcache = *(req->statdata); 806 croak (0);
699 } 807 }
700
701 req_invoke (req);
702 808
703 count++; 809 count++;
704 } 810 }
705 811
706 req_free (req); 812 req_free (req);
813
814 if (maxreqs && !--maxreqs)
815 break;
816
817 if (max_poll_time)
818 {
819 gettimeofday (&tv_now, 0);
820
821 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
822 break;
823 }
707 } 824 }
708 825
709 if (nreqs <= max_outstanding) 826 if (nreqs <= max_outstanding)
710 break; 827 break;
711 828
712 poll_wait (); 829 poll_wait ();
713 830
714 max = 0; 831 ++maxreqs;
715 } 832 }
716 833
834 unblock_sig ();
717 return count; 835 return count;
718} 836}
719 837
720static void create_pipe () 838static void create_pipe ()
721{ 839{
… …
937 int memofs = 0; 1055 int memofs = 0;
938 int res = 0; 1056 int res = 0;
939 int errorno; 1057 int errorno;
940 1058
941 LOCK (wrklock); 1059 LOCK (wrklock);
942 self->dirp = dirp = opendir (req->dataptr); 1060 self->dirp = dirp = opendir (req->ptr1);
943 self->dbuf = u = malloc (sizeof (*u)); 1061 self->dbuf = u = malloc (sizeof (*u));
1062 req->flags |= FLAG_PTR2_FREE;
944 req->data2ptr = names = malloc (memlen); 1063 req->ptr2 = names = malloc (memlen);
945 UNLOCK (wrklock); 1064 UNLOCK (wrklock);
946 1065
947 if (dirp && u && names) 1066 if (dirp && u && names)
948 for (;;) 1067 for (;;)
949 { 1068 {
… …
963 1082
964 while (memofs + len > memlen) 1083 while (memofs + len > memlen)
965 { 1084 {
966 memlen *= 2; 1085 memlen *= 2;
967 LOCK (wrklock); 1086 LOCK (wrklock);
968 req->data2ptr = names = realloc (names, memlen); 1087 req->ptr2 = names = realloc (names, memlen);
969 UNLOCK (wrklock); 1088 UNLOCK (wrklock);
970 1089
971 if (!names) 1090 if (!names)
972 break; 1091 break;
973 } 1092 }
… …
1038 errno = 0; /* strictly unnecessary */ 1157 errno = 0; /* strictly unnecessary */
1039 1158
1040 if (!(req->flags & FLAG_CANCELLED)) 1159 if (!(req->flags & FLAG_CANCELLED))
1041 switch (req->type) 1160 switch (req->type)
1042 { 1161 {
1043 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1162 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1044 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1163 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1045 1164
1046 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1165 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1047 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; 1166 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1048 1167
1049 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 1168 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1050 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 1169 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1051 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 1170 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1052 1171
1053 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 1172 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1054 case REQ_CLOSE: req->result = close (req->fd); break; 1173 case REQ_CLOSE: req->result = close (req->int1); break;
1055 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 1174 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1056 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 1175 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1176 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1057 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; 1177 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1058 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; 1178 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1059 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 1179 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1060 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; 1180 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1181 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1061 1182
1062 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 1183 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1063 case REQ_FSYNC: req->result = fsync (req->fd); break; 1184 case REQ_FSYNC: req->result = fsync (req->int1); break;
1064 case REQ_READDIR: scandir_ (req, self); break; 1185 case REQ_READDIR: scandir_ (req, self); break;
1065 1186
1066 case REQ_BUSY: 1187 case REQ_BUSY:
1067 { 1188 {
1068 struct timeval tv; 1189 struct timeval tv;
1069 1190
1070 tv.tv_sec = req->fd; 1191 tv.tv_sec = req->int1;
1071 tv.tv_usec = req->fd2; 1192 tv.tv_usec = req->int2;
1072 1193
1073 req->result = select (0, 0, 0, 0, &tv); 1194 req->result = select (0, 0, 0, 0, &tv);
1074 } 1195 }
1075 1196
1076 case REQ_GROUP: 1197 case REQ_GROUP:
… …
1090 LOCK (reslock); 1211 LOCK (reslock);
1091 1212
1092 ++npending; 1213 ++npending;
1093 1214
1094 if (!reqq_push (&res_queue, req)) 1215 if (!reqq_push (&res_queue, req))
1216 {
1095 /* write a dummy byte to the pipe so fh becomes ready */ 1217 /* write a dummy byte to the pipe so fh becomes ready */
1096 write (respipe [1], &respipe, 1); 1218 write (respipe [1], &respipe, 1);
1219
1220 /* optionally signal the main thread asynchronously */
1221 if (main_sig)
1222 pthread_kill (main_tid, main_sig);
1223 }
1097 1224
1098 self->req = 0; 1225 self->req = 0;
1099 worker_clear (self); 1226 worker_clear (self);
1100 1227
1101 UNLOCK (reslock); 1228 UNLOCK (reslock);
… …
1204 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1331 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1205 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1332 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1206 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 1333 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1207 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 1334 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1208 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 1335 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1336 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1209 1337
1210 create_pipe (); 1338 create_pipe ();
1211 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1339 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1212} 1340}
1213 1341
1214void 1342void
1343max_poll_reqs (int nreqs)
1344 PROTOTYPE: $
1345 CODE:
1346 max_poll_reqs = nreqs;
1347
1348void
1349max_poll_time (double nseconds)
1350 PROTOTYPE: $
1351 CODE:
1352 max_poll_time = nseconds * AIO_TICKS;
1353
1354void
1215min_parallel (int nthreads) 1355min_parallel (int nthreads)
1216 PROTOTYPE: $ 1356 PROTOTYPE: $
1217 1357
1218void 1358void
1219max_parallel (int nthreads) 1359max_parallel (int nthreads)
1220 PROTOTYPE: $ 1360 PROTOTYPE: $
1361
1362void
1363max_idle (int nthreads)
1364 PROTOTYPE: $
1365 CODE:
1366 set_max_idle (nthreads);
1221 1367
1222int 1368int
1223max_outstanding (int maxreqs) 1369max_outstanding (int maxreqs)
1224 PROTOTYPE: $ 1370 PROTOTYPE: $
1225 CODE: 1371 CODE:
… …
1228 OUTPUT: 1374 OUTPUT:
1229 RETVAL 1375 RETVAL
1230 1376
1231void 1377void
1232aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1378aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1233 SV * pathname 1379 SV8 * pathname
1234 int flags 1380 int flags
1235 int mode 1381 int mode
1236 SV * callback 1382 SV * callback
1237 PROTOTYPE: $$$;$ 1383 PROTOTYPE: $$$;$
1238 PPCODE: 1384 PPCODE:
1239{ 1385{
1240 dREQ; 1386 dREQ;
1241 1387
1242 req->type = REQ_OPEN; 1388 req->type = REQ_OPEN;
1243 req->data = newSVsv (pathname); 1389 req->sv1 = newSVsv (pathname);
1244 req->dataptr = SvPVbyte_nolen (req->data); 1390 req->ptr1 = SvPVbyte_nolen (req->sv1);
1245 req->fd = flags; 1391 req->int1 = flags;
1246 req->mode = mode; 1392 req->mode = mode;
1247 1393
1248 REQ_SEND; 1394 REQ_SEND;
1249} 1395}
1250 1396
… …
1260 PPCODE: 1406 PPCODE:
1261{ 1407{
1262 dREQ; 1408 dREQ;
1263 1409
1264 req->type = ix; 1410 req->type = ix;
1265 req->fh = newSVsv (fh); 1411 req->fh = newSVsv (fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1412 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1267 1413
1268 REQ_SEND (req); 1414 REQ_SEND (req);
1269} 1415}
1270 1416
1271void 1417void
1272aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1418aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1273 SV * fh 1419 SV * fh
1274 UV offset 1420 UV offset
1275 UV length 1421 UV length
1276 SV * data 1422 SV8 * data
1277 UV dataoffset 1423 UV dataoffset
1278 SV * callback 1424 SV * callback
1279 ALIAS: 1425 ALIAS:
1280 aio_read = REQ_READ 1426 aio_read = REQ_READ
1281 aio_write = REQ_WRITE 1427 aio_write = REQ_WRITE
1282 PROTOTYPE: $$$$$;$ 1428 PROTOTYPE: $$$$$;$
1283 PPCODE: 1429 PPCODE:
1284{ 1430{
1285 aio_req req;
1286 STRLEN svlen; 1431 STRLEN svlen;
1287 char *svptr = SvPVbyte (data, svlen); 1432 char *svptr = SvPVbyte (data, svlen);
1288 1433
1289 SvUPGRADE (data, SVt_PV); 1434 SvUPGRADE (data, SVt_PV);
1290 SvPOK_on (data); 1435 SvPOK_on (data);
… …
1302 length = svlen - dataoffset; 1447 length = svlen - dataoffset;
1303 } 1448 }
1304 else 1449 else
1305 { 1450 {
1306 /* read: grow scalar as necessary */ 1451 /* read: grow scalar as necessary */
1307 svptr = SvGROW (data, length + dataoffset); 1452 svptr = SvGROW (data, length + dataoffset + 1);
1308 } 1453 }
1309 1454
1310 if (length < 0) 1455 if (length < 0)
1311 croak ("length must not be negative"); 1456 croak ("length must not be negative");
1312 1457
1313 { 1458 {
1314 dREQ; 1459 dREQ;
1315 1460
1316 req->type = ix; 1461 req->type = ix;
1317 req->fh = newSVsv (fh); 1462 req->fh = newSVsv (fh);
1318 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1463 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1319 : IoOFP (sv_2io (fh))); 1464 : IoOFP (sv_2io (fh)));
1320 req->offset = offset; 1465 req->offs = offset;
1321 req->length = length; 1466 req->size = length;
1322 req->data = SvREFCNT_inc (data); 1467 req->sv1 = SvREFCNT_inc (data);
1323 req->dataptr = (char *)svptr + dataoffset; 1468 req->ptr1 = (char *)svptr + dataoffset;
1469 req->stroffset = dataoffset;
1324 1470
1325 if (!SvREADONLY (data)) 1471 if (!SvREADONLY (data))
1326 { 1472 {
1327 SvREADONLY_on (data); 1473 SvREADONLY_on (data);
1328 req->data2ptr = (void *)data; 1474 req->flags |= FLAG_SV1_RO_OFF;
1329 } 1475 }
1330 1476
1331 REQ_SEND; 1477 REQ_SEND;
1332 } 1478 }
1479}
1480
1481void
1482aio_readlink (path,callback=&PL_sv_undef)
1483 SV8 * path
1484 SV * callback
1485 PROTOTYPE: $$;$
1486 PPCODE:
1487{
1488 SV *data;
1489 dREQ;
1490
1491 data = newSV (NAME_MAX);
1492 SvPOK_on (data);
1493
1494 req->type = REQ_READLINK;
1495 req->fh = newSVsv (path);
1496 req->ptr2 = SvPVbyte_nolen (req->fh);
1497 req->sv1 = data;
1498 req->ptr1 = SvPVbyte_nolen (data);
1499
1500 REQ_SEND;
1333} 1501}
1334 1502
1335void 1503void
1336aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1504aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
1337 SV * out_fh 1505 SV * out_fh
… …
1343 PPCODE: 1511 PPCODE:
1344{ 1512{
1345 dREQ; 1513 dREQ;
1346 1514
1347 req->type = REQ_SENDFILE; 1515 req->type = REQ_SENDFILE;
1348 req->fh = newSVsv (out_fh); 1516 req->fh = newSVsv (out_fh);
1349 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1517 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1350 req->fh2 = newSVsv (in_fh); 1518 req->sv2 = newSVsv (in_fh);
1351 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1519 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1352 req->offset = in_offset; 1520 req->offs = in_offset;
1353 req->length = length; 1521 req->size = length;
1354 1522
1355 REQ_SEND; 1523 REQ_SEND;
1356} 1524}
1357 1525
1358void 1526void
… …
1365 PPCODE: 1533 PPCODE:
1366{ 1534{
1367 dREQ; 1535 dREQ;
1368 1536
1369 req->type = REQ_READAHEAD; 1537 req->type = REQ_READAHEAD;
1370 req->fh = newSVsv (fh); 1538 req->fh = newSVsv (fh);
1371 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1539 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1372 req->offset = offset; 1540 req->offs = offset;
1373 req->length = length; 1541 req->size = length;
1374 1542
1375 REQ_SEND; 1543 REQ_SEND;
1376} 1544}
1377 1545
1378void 1546void
1379aio_stat (fh_or_path,callback=&PL_sv_undef) 1547aio_stat (fh_or_path,callback=&PL_sv_undef)
1380 SV * fh_or_path 1548 SV8 * fh_or_path
1381 SV * callback 1549 SV * callback
1382 ALIAS: 1550 ALIAS:
1383 aio_stat = REQ_STAT 1551 aio_stat = REQ_STAT
1384 aio_lstat = REQ_LSTAT 1552 aio_lstat = REQ_LSTAT
1385 PPCODE: 1553 PPCODE:
1386{ 1554{
1387 dREQ; 1555 dREQ;
1388 1556
1389 New (0, req->statdata, 1, Stat_t); 1557 req->ptr2 = malloc (sizeof (Stat_t));
1390 if (!req->statdata) 1558 if (!req->ptr2)
1391 { 1559 {
1392 req_free (req); 1560 req_free (req);
1393 croak ("out of memory during aio_req->statdata allocation"); 1561 croak ("out of memory during aio_stat statdata allocation");
1394 } 1562 }
1563
1564 req->flags |= FLAG_PTR2_FREE;
1395 1565
1396 if (SvPOK (fh_or_path)) 1566 if (SvPOK (fh_or_path))
1397 { 1567 {
1398 req->type = ix; 1568 req->type = ix;
1399 req->data = newSVsv (fh_or_path); 1569 req->sv1 = newSVsv (fh_or_path);
1400 req->dataptr = SvPVbyte_nolen (req->data); 1570 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 } 1571 }
1402 else 1572 else
1403 { 1573 {
1404 req->type = REQ_FSTAT; 1574 req->type = REQ_FSTAT;
1405 req->fh = newSVsv (fh_or_path); 1575 req->fh = newSVsv (fh_or_path);
1406 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1576 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1407 } 1577 }
1408 1578
1409 REQ_SEND; 1579 REQ_SEND;
1410} 1580}
1411 1581
1412void 1582void
1413aio_unlink (pathname,callback=&PL_sv_undef) 1583aio_unlink (pathname,callback=&PL_sv_undef)
1414 SV * pathname 1584 SV8 * pathname
1415 SV * callback 1585 SV * callback
1416 ALIAS: 1586 ALIAS:
1417 aio_unlink = REQ_UNLINK 1587 aio_unlink = REQ_UNLINK
1418 aio_rmdir = REQ_RMDIR 1588 aio_rmdir = REQ_RMDIR
1419 aio_readdir = REQ_READDIR 1589 aio_readdir = REQ_READDIR
1420 PPCODE: 1590 PPCODE:
1421{ 1591{
1422 dREQ; 1592 dREQ;
1423 1593
1424 req->type = ix; 1594 req->type = ix;
1425 req->data = newSVsv (pathname); 1595 req->sv1 = newSVsv (pathname);
1426 req->dataptr = SvPVbyte_nolen (req->data); 1596 req->ptr1 = SvPVbyte_nolen (req->sv1);
1597
1598 REQ_SEND;
1599}
1600
1601void
1602aio_mkdir (pathname,mode,callback=&PL_sv_undef)
1603 SV8 * pathname
1604 UV mode
1605 SV * callback
1606 PPCODE:
1607{
1608 dREQ;
1427 1609
1610 req->type = REQ_MKDIR;
1611 req->sv1 = newSVsv (pathname);
1612 req->ptr1 = SvPVbyte_nolen (req->sv1);
1613 req->mode = mode;
1614
1428 REQ_SEND; 1615 REQ_SEND;
1429} 1616}
1430 1617
1431void 1618void
1432aio_link (oldpath,newpath,callback=&PL_sv_undef) 1619aio_link (oldpath,newpath,callback=&PL_sv_undef)
1433 SV * oldpath 1620 SV8 * oldpath
1434 SV * newpath 1621 SV8 * newpath
1435 SV * callback 1622 SV * callback
1436 ALIAS: 1623 ALIAS:
1437 aio_link = REQ_LINK 1624 aio_link = REQ_LINK
1438 aio_symlink = REQ_SYMLINK 1625 aio_symlink = REQ_SYMLINK
1439 aio_rename = REQ_RENAME 1626 aio_rename = REQ_RENAME
1440 PPCODE: 1627 PPCODE:
1441{ 1628{
1442 dREQ; 1629 dREQ;
1443 1630
1444 req->type = ix; 1631 req->type = ix;
1445 req->fh = newSVsv (oldpath); 1632 req->fh = newSVsv (oldpath);
1446 req->data2ptr = SvPVbyte_nolen (req->fh); 1633 req->ptr2 = SvPVbyte_nolen (req->fh);
1447 req->data = newSVsv (newpath); 1634 req->sv1 = newSVsv (newpath);
1448 req->dataptr = SvPVbyte_nolen (req->data); 1635 req->ptr1 = SvPVbyte_nolen (req->sv1);
1449 1636
1450 REQ_SEND; 1637 REQ_SEND;
1451} 1638}
1452 1639
1453void 1640void
1454aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1641aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)
1455 SV * pathname 1642 SV8 * pathname
1456 SV * callback
1457 UV mode 1643 UV mode
1458 UV dev 1644 UV dev
1645 SV * callback
1459 PPCODE: 1646 PPCODE:
1460{ 1647{
1461 dREQ; 1648 dREQ;
1462 1649
1463 req->type = REQ_MKNOD; 1650 req->type = REQ_MKNOD;
1464 req->data = newSVsv (pathname); 1651 req->sv1 = newSVsv (pathname);
1465 req->dataptr = SvPVbyte_nolen (req->data); 1652 req->ptr1 = SvPVbyte_nolen (req->sv1);
1466 req->mode = (mode_t)mode; 1653 req->mode = (mode_t)mode;
1467 req->offset = dev; 1654 req->offs = dev;
1468 1655
1469 REQ_SEND; 1656 REQ_SEND;
1470} 1657}
1471 1658
1472void 1659void
1473aio_busy (delay,callback=&PL_sv_undef) 1660aio_busy (delay,callback=&PL_sv_undef)
1474 double delay 1661 double delay
1475 SV * callback 1662 SV * callback
1476 PPCODE: 1663 PPCODE:
1477{ 1664{
1478 dREQ; 1665 dREQ;
1479 1666
1480 req->type = REQ_BUSY; 1667 req->type = REQ_BUSY;
1481 req->fd = delay < 0. ? 0 : delay; 1668 req->int1 = delay < 0. ? 0 : delay;
1482 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1669 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1483 1670
1484 REQ_SEND; 1671 REQ_SEND;
1485} 1672}
1486 1673
1487void 1674void
… …
1491 PPCODE: 1678 PPCODE:
1492{ 1679{
1493 dREQ; 1680 dREQ;
1494 1681
1495 req->type = REQ_GROUP; 1682 req->type = REQ_GROUP;
1683
1496 req_send (req); 1684 req_send (req);
1497
1498 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1685 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1499} 1686}
1500 1687
1501void 1688void
1502aio_nop (callback=&PL_sv_undef) 1689aio_nop (callback=&PL_sv_undef)
1503 SV * callback 1690 SV * callback
1504 PPCODE: 1691 PPCODE:
1505{ 1692{
1506 dREQ; 1693 dREQ;
1507 1694
1508 req->type = REQ_NOP; 1695 req->type = REQ_NOP;
… …
1537 PROTOTYPE: 1724 PROTOTYPE:
1538 CODE: 1725 CODE:
1539 while (nreqs) 1726 while (nreqs)
1540 { 1727 {
1541 poll_wait (); 1728 poll_wait ();
1542 poll_cb (0); 1729 poll_cb ();
1543 } 1730 }
1544 1731
1545void 1732int
1546poll() 1733poll()
1547 PROTOTYPE: 1734 PROTOTYPE:
1548 CODE: 1735 CODE:
1549 if (nreqs)
1550 {
1551 poll_wait (); 1736 poll_wait ();
1552 poll_cb (0); 1737 RETVAL = poll_cb ();
1553 } 1738 OUTPUT:
1739 RETVAL
1554 1740
1555int 1741int
1556poll_fileno() 1742poll_fileno()
1557 PROTOTYPE: 1743 PROTOTYPE:
1558 CODE: 1744 CODE:
… …
1562 1748
1563int 1749int
1564poll_cb(...) 1750poll_cb(...)
1565 PROTOTYPE: 1751 PROTOTYPE:
1566 CODE: 1752 CODE:
1567 RETVAL = poll_cb (0); 1753 RETVAL = poll_cb ();
1568 OUTPUT:
1569 RETVAL
1570
1571int
1572poll_some(int max = 0)
1573 PROTOTYPE: $
1574 CODE:
1575 RETVAL = poll_cb (max);
1576 OUTPUT: 1754 OUTPUT:
1577 RETVAL 1755 RETVAL
1578 1756
1579void 1757void
1580poll_wait() 1758poll_wait()
1581 PROTOTYPE: 1759 PROTOTYPE:
1582 CODE: 1760 CODE:
1583 if (nreqs)
1584 poll_wait (); 1761 poll_wait ();
1762
1763void
1764setsig (int signum = SIGIO)
1765 PROTOTYPE: ;$
1766 CODE:
1767{
1768 if (block_sig_level)
1769 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1770
1771 LOCK (reslock);
1772 main_tid = pthread_self ();
1773 main_sig = signum;
1774 UNLOCK (reslock);
1775
1776 if (main_sig && npending)
1777 pthread_kill (main_tid, main_sig);
1778}
1779
1780void
1781aio_block (SV *cb)
1782 PROTOTYPE: &
1783 PPCODE:
1784{
1785 int count;
1786
1787 block_sig ();
1788 PUSHMARK (SP);
1789 PUTBACK;
1790 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1791 SPAGAIN;
1792 unblock_sig ();
1793
1794 if (SvTRUE (ERRSV))
1795 croak (0);
1796
1797 XSRETURN (count);
1798}
1585 1799
1586int 1800int
1587nreqs() 1801nreqs()
1588 PROTOTYPE: 1802 PROTOTYPE:
1589 CODE: 1803 CODE:
… …
1605 CODE: 1819 CODE:
1606 RETVAL = get_npending (); 1820 RETVAL = get_npending ();
1607 OUTPUT: 1821 OUTPUT:
1608 RETVAL 1822 RETVAL
1609 1823
1824int
1825nthreads()
1826 PROTOTYPE:
1827 CODE:
1828 if (WORDACCESS_UNSAFE) LOCK (wrklock);
1829 RETVAL = started;
1830 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1831 OUTPUT:
1832 RETVAL
1833
1610PROTOTYPES: DISABLE 1834PROTOTYPES: DISABLE
1611 1835
1612MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1836MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1613 1837
1614void 1838void
… …
1629 PPCODE: 1853 PPCODE:
1630{ 1854{
1631 int i; 1855 int i;
1632 aio_req req; 1856 aio_req req;
1633 1857
1858 if (main_sig && !block_sig_level)
1859 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1860
1634 if (grp->fd == 2) 1861 if (grp->int1 == 2)
1635 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1862 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1636 1863
1637 for (i = 1; i < items; ++i ) 1864 for (i = 1; i < items; ++i )
1638 { 1865 {
1639 if (GIMME_V != G_VOID) 1866 if (GIMME_V != G_VOID)
… …
1641 1868
1642 req = SvAIO_REQ (ST (i)); 1869 req = SvAIO_REQ (ST (i));
1643 1870
1644 if (req) 1871 if (req)
1645 { 1872 {
1646 ++grp->length; 1873 ++grp->size;
1647 req->grp = grp; 1874 req->grp = grp;
1648 1875
1649 req->grp_prev = 0; 1876 req->grp_prev = 0;
1650 req->grp_next = grp->grp_first; 1877 req->grp_next = grp->grp_first;
1651 1878
… …
1674 av = newAV (); 1901 av = newAV ();
1675 1902
1676 for (i = 1; i < items; ++i ) 1903 for (i = 1; i < items; ++i )
1677 av_push (av, newSVsv (ST (i))); 1904 av_push (av, newSVsv (ST (i)));
1678 1905
1679 SvREFCNT_dec (grp->data); 1906 SvREFCNT_dec (grp->sv1);
1680 grp->data = (SV *)av; 1907 grp->sv1 = (SV *)av;
1681} 1908}
1682 1909
1683void 1910void
1684errno (aio_req grp, int errorno = errno) 1911errno (aio_req grp, int errorno = errno)
1685 CODE: 1912 CODE:
1686 grp->errorno = errorno; 1913 grp->errorno = errorno;
1687 1914
1688void 1915void
1689limit (aio_req grp, int limit) 1916limit (aio_req grp, int limit)
1690 CODE: 1917 CODE:
1691 grp->fd2 = limit; 1918 grp->int2 = limit;
1692 aio_grp_feed (grp); 1919 aio_grp_feed (grp);
1693 1920
1694void 1921void
1695feed (aio_req grp, SV *callback=&PL_sv_undef) 1922feed (aio_req grp, SV *callback=&PL_sv_undef)
1696 CODE: 1923 CODE:
1697{ 1924{
1698 SvREFCNT_dec (grp->fh2); 1925 SvREFCNT_dec (grp->sv2);
1699 grp->fh2 = newSVsv (callback); 1926 grp->sv2 = newSVsv (callback);
1700 1927
1701 if (grp->fd2 <= 0) 1928 if (grp->int2 <= 0)
1702 grp->fd2 = 2; 1929 grp->int2 = 2;
1703 1930
1704 aio_grp_feed (grp); 1931 aio_grp_feed (grp);
1705} 1932}
1706 1933

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