ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC

… …
43# else 43# else
44# error sendfile support requested but not available 44# error sendfile support requested but not available
45# endif 45# endif
46#endif 46#endif
47 47
48/* number of seconds after which idle threads exit */
49#define IDLE_TIMEOUT 10
50
48/* used for struct dirent, AIX doesn't provide it */ 51/* used for struct dirent, AIX doesn't provide it */
49#ifndef NAME_MAX 52#ifndef NAME_MAX
50# define NAME_MAX 4096 53# define NAME_MAX 4096
51#endif 54#endif
52 55
… …
59# define STACKSIZE 65536 62# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN 64# define STACKSIZE PTHREAD_STACK_MIN
62#else 65#else
63# define STACKSIZE 16384 66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif
64#endif 79#endif
65 80
66/* buffer size for various temporary buffers */ 81/* buffer size for various temporary buffers */
67#define AIO_BUFSIZE 65536 82#define AIO_BUFSIZE 65536
68 83
… …
80 REQ_READ, REQ_WRITE, REQ_READAHEAD, 95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE, 96 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC, 98 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR, 100 REQ_MKNOD, REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK, 101 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP, 102 REQ_GROUP, REQ_NOP,
88 REQ_BUSY, 103 REQ_BUSY,
89}; 104};
90 105
… …
130 DEFAULT_PRI = 0, 145 DEFAULT_PRI = 0,
131 PRI_BIAS = -PRI_MIN, 146 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133}; 148};
134 149
150#define AIO_TICKS ((1000000 + 1023) >> 10)
151
152static unsigned int max_poll_time = 0;
153static unsigned int max_poll_reqs = 0;
154
155/* calculcate time difference in ~1/AIO_TICKS of a second */
156static int tvdiff (struct timeval *tv1, struct timeval *tv2)
157{
158 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
159 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
160}
161
135static int next_pri = DEFAULT_PRI + PRI_BIAS; 162static int next_pri = DEFAULT_PRI + PRI_BIAS;
136 163
137static unsigned int started, wanted; 164static unsigned int started, idle, wanted;
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141 165
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 166#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 167# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else 168#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 169# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
… …
186 wrk->prev->next = wrk->next; 210 wrk->prev->next = wrk->next;
187 211
188 free (wrk); 212 free (wrk);
189} 213}
190 214
215static volatile unsigned int nreqs, nready, npending;
216static volatile unsigned int max_idle = 4;
217static volatile unsigned int max_outstanding = 0xffffffff;
218static int respipe [2];
219
191static pthread_mutex_t reslock = AIO_MUTEX_INIT; 220static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 221static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 222static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
223
224#if WORDACCESS_UNSAFE
225
226static unsigned int get_nready ()
227{
228 unsigned int retval;
229
230 LOCK (reqlock);
231 retval = nready;
232 UNLOCK (reqlock);
233
234 return retval;
235}
236
237static unsigned int get_npending ()
238{
239 unsigned int retval;
240
241 LOCK (reslock);
242 retval = npending;
243 UNLOCK (reslock);
244
245 return retval;
246}
247
248static unsigned int get_nthreads ()
249{
250 unsigned int retval;
251
252 LOCK (wrklock);
253 retval = started;
254 UNLOCK (wrklock);
255
256 return retval;
257}
258
259#else
260
261# define get_nready() nready
262# define get_npending() npending
263# define get_nthreads() started
264
265#endif
194 266
195/* 267/*
196 * a somewhat faster data structure might be nice, but 268 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns 269 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation. 270 * per shift, the most expensive operation.
… …
244 } 316 }
245 317
246 abort (); 318 abort ();
247} 319}
248 320
249static int poll_cb (int max); 321static int poll_cb ();
250static void req_invoke (aio_req req); 322static void req_invoke (aio_req req);
251static void req_free (aio_req req); 323static void req_free (aio_req req);
252static void req_cancel (aio_req req); 324static void req_cancel (aio_req req);
253 325
254/* must be called at most once */ 326/* must be called at most once */
… …
319 req_invoke (grp); 391 req_invoke (grp);
320 req_free (grp); 392 req_free (grp);
321 } 393 }
322} 394}
323 395
324static void poll_wait ()
325{
326 fd_set rfd;
327
328 while (nreqs)
329 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req) 396static void req_invoke (aio_req req)
350{ 397{
351 dSP; 398 dSP;
352 399
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 400 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
354 { 401 {
355 errno = req->errorno;
356
357 ENTER; 402 ENTER;
358 SAVETMPS; 403 SAVETMPS;
359 PUSHMARK (SP); 404 PUSHMARK (SP);
360 EXTEND (SP, 1); 405 EXTEND (SP, 1);
361 406
… …
426 default: 471 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 472 PUSHs (sv_2mortal (newSViv (req->result)));
428 break; 473 break;
429 } 474 }
430 475
476 errno = req->errorno;
431 477
432 PUTBACK; 478 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 479 call_sv (req->callback, G_VOID | G_EVAL);
434 SPAGAIN; 480 SPAGAIN;
435 481
… …
497 req->flags |= FLAG_CANCELLED; 543 req->flags |= FLAG_CANCELLED;
498 544
499 req_cancel_subs (req); 545 req_cancel_subs (req);
500} 546}
501 547
548static void *aio_proc(void *arg);
549
550static void start_thread (void)
551{
552 sigset_t fullsigset, oldsigset;
553 pthread_attr_t attr;
554
555 worker *wrk = calloc (1, sizeof (worker));
556
557 if (!wrk)
558 croak ("unable to allocate worker thread data");
559
560 pthread_attr_init (&attr);
561 pthread_attr_setstacksize (&attr, STACKSIZE);
562 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
563#ifdef PTHREAD_SCOPE_PROCESS
564 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
565#endif
566
567 sigfillset (&fullsigset);
568
569 LOCK (wrklock);
570 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
571
572 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
573 {
574 wrk->prev = &wrk_first;
575 wrk->next = wrk_first.next;
576 wrk_first.next->prev = wrk;
577 wrk_first.next = wrk;
578 ++started;
579 }
580 else
581 free (wrk);
582
583 sigprocmask (SIG_SETMASK, &oldsigset, 0);
584 UNLOCK (wrklock);
585}
586
587static void maybe_start_thread ()
588{
589 if (get_nthreads () >= wanted)
590 return;
591
592 /* todo: maybe use idle here, but might be less exact */
593 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
594 return;
595
596 start_thread ();
597}
598
599static void req_send (aio_req req)
600{
601 ++nreqs;
602
603 LOCK (reqlock);
604 ++nready;
605 reqq_push (&req_queue, req);
606 pthread_cond_signal (&reqwait);
607 UNLOCK (reqlock);
608
609 maybe_start_thread ();
610}
611
612static void end_thread (void)
613{
614 aio_req req;
615
616 Newz (0, req, 1, aio_cb);
617
618 req->type = REQ_QUIT;
619 req->pri = PRI_MAX + PRI_BIAS;
620
621 LOCK (reqlock);
622 reqq_push (&req_queue, req);
623 pthread_cond_signal (&reqwait);
624 UNLOCK (reqlock);
625
626 LOCK (wrklock);
627 --started;
628 UNLOCK (wrklock);
629}
630
631static void set_max_idle (int nthreads)
632{
633 if (WORDACCESS_UNSAFE) LOCK (reqlock);
634 max_idle = nthreads <= 0 ? 1 : nthreads;
635 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
636}
637
638static void min_parallel (int nthreads)
639{
640 if (wanted < nthreads)
641 wanted = nthreads;
642}
643
644static void max_parallel (int nthreads)
645{
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (started > wanted)
650 end_thread ();
651}
652
653static void poll_wait ()
654{
655 fd_set rfd;
656
657 while (nreqs)
658 {
659 int size;
660 if (WORDACCESS_UNSAFE) LOCK (reslock);
661 size = res_queue.size;
662 if (WORDACCESS_UNSAFE) UNLOCK (reslock);
663
664 if (size)
665 return;
666
667 maybe_start_thread ();
668
669 FD_ZERO(&rfd);
670 FD_SET(respipe [0], &rfd);
671
672 select (respipe [0] + 1, &rfd, 0, 0, 0);
673 }
674}
675
502static int poll_cb (int max) 676static int poll_cb ()
503{ 677{
504 dSP; 678 dSP;
505 int count = 0; 679 int count = 0;
680 int maxreqs = max_poll_reqs;
506 int do_croak = 0; 681 int do_croak = 0;
682 struct timeval tv_start, tv_now;
507 aio_req req; 683 aio_req req;
508 684
685 if (max_poll_time)
686 gettimeofday (&tv_start, 0);
687
509 for (;;) 688 for (;;)
510 { 689 {
511 while (max <= 0 || count < max) 690 for (;;)
512 { 691 {
692 maybe_start_thread ();
693
513 LOCK (reslock); 694 LOCK (reslock);
514 req = reqq_shift (&res_queue); 695 req = reqq_shift (&res_queue);
515 696
516 if (req) 697 if (req)
517 { 698 {
699 --npending;
700
518 if (!res_queue.size) 701 if (!res_queue.size)
519 { 702 {
520 /* read any signals sent by the worker threads */ 703 /* read any signals sent by the worker threads */
521 char buf [32]; 704 char buf [32];
522 while (read (respipe [0], buf, 32) == 32) 705 while (read (respipe [0], buf, 32) == 32)
… …
529 if (!req) 712 if (!req)
530 break; 713 break;
531 714
532 --nreqs; 715 --nreqs;
533 716
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length) 717 if (req->type == REQ_GROUP && req->length)
537 { 718 {
538 req->fd = 1; /* mark request as delayed */ 719 req->fd = 1; /* mark request as delayed */
539 continue; 720 continue;
540 } 721 }
541 else 722 else
… …
557 738
558 count++; 739 count++;
559 } 740 }
560 741
561 req_free (req); 742 req_free (req);
743
744 if (maxreqs && !--maxreqs)
745 break;
746
747 if (max_poll_time)
748 {
749 gettimeofday (&tv_now, 0);
750
751 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
752 break;
753 }
562 } 754 }
563 755
564 if (nreqs <= max_outstanding) 756 if (nreqs <= max_outstanding)
565 break; 757 break;
566 758
567 poll_wait (); 759 poll_wait ();
568 760
569 max = 0; 761 ++maxreqs;
570 } 762 }
571 763
572 return count; 764 return count;
573}
574
575static void *aio_proc(void *arg);
576
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void req_send (aio_req req)
612{
613 while (started < wanted && nreqs >= started)
614 start_thread ();
615
616 ++nreqs;
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 {
651 end_thread ();
652 cur--;
653 }
654
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660} 765}
661 766
662static void create_pipe () 767static void create_pipe ()
663{ 768{
664 if (pipe (respipe)) 769 if (pipe (respipe))
… …
928/*****************************************************************************/ 1033/*****************************************************************************/
929 1034
930static void *aio_proc (void *thr_arg) 1035static void *aio_proc (void *thr_arg)
931{ 1036{
932 aio_req req; 1037 aio_req req;
933 int type; 1038 struct timespec ts;
934 worker *self = (worker *)thr_arg; 1039 worker *self = (worker *)thr_arg;
935 1040
936 do 1041 /* try to distribute timeouts somewhat evenly */
1042 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1043 * (1000000000UL / 1024UL);
1044
1045 for (;;)
937 { 1046 {
1047 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1048
938 LOCK (reqlock); 1049 LOCK (reqlock);
939 1050
940 for (;;) 1051 for (;;)
941 { 1052 {
942 self->req = req = reqq_shift (&req_queue); 1053 self->req = req = reqq_shift (&req_queue);
943 1054
944 if (req) 1055 if (req)
945 break; 1056 break;
946 1057
1058 ++idle;
1059
1060 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1061 == ETIMEDOUT)
1062 {
1063 if (idle > max_idle)
1064 {
1065 --idle;
1066 UNLOCK (reqlock);
1067 LOCK (wrklock);
1068 --started;
1069 UNLOCK (wrklock);
1070 goto quit;
1071 }
1072
1073 /* we are allowed to idle, so do so without any timeout */
947 pthread_cond_wait (&reqwait, &reqlock); 1074 pthread_cond_wait (&reqwait, &reqlock);
1075 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1076 }
1077
1078 --idle;
948 } 1079 }
1080
1081 --nready;
949 1082
950 UNLOCK (reqlock); 1083 UNLOCK (reqlock);
951 1084
952 errno = 0; /* strictly unnecessary */ 1085 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954 1086
955 if (!(req->flags & FLAG_CANCELLED)) 1087 if (!(req->flags & FLAG_CANCELLED))
956 switch (type) 1088 switch (req->type)
957 { 1089 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1090 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1091 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960 1092
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1093 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
… …
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 1102 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 1103 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; 1104 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; 1105 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 1106 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1107 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
975 1108
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 1109 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break; 1110 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break; 1111 case REQ_READDIR: scandir_ (req, self); break;
979 1112
… …
987 req->result = select (0, 0, 0, 0, &tv); 1120 req->result = select (0, 0, 0, 0, &tv);
988 } 1121 }
989 1122
990 case REQ_GROUP: 1123 case REQ_GROUP:
991 case REQ_NOP: 1124 case REQ_NOP:
1125 break;
1126
992 case REQ_QUIT: 1127 case REQ_QUIT:
993 break; 1128 goto quit;
994 1129
995 default: 1130 default:
996 req->result = ENOSYS; 1131 req->result = ENOSYS;
997 break; 1132 break;
998 } 1133 }
999 1134
1000 req->errorno = errno; 1135 req->errorno = errno;
1001 1136
1002 LOCK (reslock); 1137 LOCK (reslock);
1003 1138
1139 ++npending;
1140
1004 if (!reqq_push (&res_queue, req)) 1141 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */ 1142 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1); 1143 write (respipe [1], &respipe, 1);
1007 1144
1008 self->req = 0; 1145 self->req = 0;
1009 worker_clear (self); 1146 worker_clear (self);
1010 1147
1011 UNLOCK (reslock); 1148 UNLOCK (reslock);
1012 } 1149 }
1013 while (type != REQ_QUIT);
1014 1150
1151quit:
1015 LOCK (wrklock); 1152 LOCK (wrklock);
1016 worker_free (self); 1153 worker_free (self);
1017 UNLOCK (wrklock); 1154 UNLOCK (wrklock);
1018 1155
1019 return 0; 1156 return 0;
… …
1066 1203
1067 worker_clear (wrk); 1204 worker_clear (wrk);
1068 worker_free (wrk); 1205 worker_free (wrk);
1069 } 1206 }
1070 1207
1071 started = 0; 1208 started = 0;
1209 idle = 0;
1072 nreqs = 0; 1210 nreqs = 0;
1211 nready = 0;
1212 npending = 0;
1073 1213
1074 close (respipe [0]); 1214 close (respipe [0]);
1075 close (respipe [1]); 1215 close (respipe [1]);
1076 create_pipe (); 1216 create_pipe ();
1077 1217
… …
1104PROTOTYPES: ENABLE 1244PROTOTYPES: ENABLE
1105 1245
1106BOOT: 1246BOOT:
1107{ 1247{
1108 HV *stash = gv_stashpv ("IO::AIO", 1); 1248 HV *stash = gv_stashpv ("IO::AIO", 1);
1249
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1250 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1251 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1252 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1253 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1254 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1255 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1112 1256
1113 create_pipe (); 1257 create_pipe ();
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1258 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1115} 1259}
1116 1260
1117void 1261void
1262max_poll_reqs (int nreqs)
1263 PROTOTYPE: $
1264 CODE:
1265 max_poll_reqs = nreqs;
1266
1267void
1268max_poll_time (double nseconds)
1269 PROTOTYPE: $
1270 CODE:
1271 max_poll_time = nseconds * AIO_TICKS;
1272
1273void
1118min_parallel (int nthreads) 1274min_parallel (int nthreads)
1119 PROTOTYPE: $ 1275 PROTOTYPE: $
1120 1276
1121void 1277void
1122max_parallel (int nthreads) 1278max_parallel (int nthreads)
1123 PROTOTYPE: $ 1279 PROTOTYPE: $
1280
1281void
1282max_idle (int nthreads)
1283 PROTOTYPE: $
1284 CODE:
1285 set_max_idle (nthreads);
1124 1286
1125int 1287int
1126max_outstanding (int maxreqs) 1288max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 1289 PROTOTYPE: $
1128 CODE: 1290 CODE:
… …
1352 1514
1353 REQ_SEND; 1515 REQ_SEND;
1354} 1516}
1355 1517
1356void 1518void
1519aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)
1520 SV * pathname
1521 SV * callback
1522 UV mode
1523 UV dev
1524 PPCODE:
1525{
1526 dREQ;
1527
1528 req->type = REQ_MKNOD;
1529 req->data = newSVsv (pathname);
1530 req->dataptr = SvPVbyte_nolen (req->data);
1531 req->mode = (mode_t)mode;
1532 req->offset = dev;
1533
1534 REQ_SEND;
1535}
1536
1537void
1357aio_busy (delay,callback=&PL_sv_undef) 1538aio_busy (delay,callback=&PL_sv_undef)
1358 double delay 1539 double delay
1359 SV * callback 1540 SV * callback
1360 PPCODE: 1541 PPCODE:
1361{ 1542{
… …
1392 req->type = REQ_NOP; 1573 req->type = REQ_NOP;
1393 1574
1394 REQ_SEND; 1575 REQ_SEND;
1395} 1576}
1396 1577
1397void 1578int
1398aioreq_pri (int pri = DEFAULT_PRI) 1579aioreq_pri (int pri = 0)
1399 CODE: 1580 PROTOTYPE: ;$
1581 CODE:
1582 RETVAL = next_pri - PRI_BIAS;
1583 if (items > 0)
1584 {
1400 if (pri < PRI_MIN) pri = PRI_MIN; 1585 if (pri < PRI_MIN) pri = PRI_MIN;
1401 if (pri > PRI_MAX) pri = PRI_MAX; 1586 if (pri > PRI_MAX) pri = PRI_MAX;
1402 next_pri = pri + PRI_BIAS; 1587 next_pri = pri + PRI_BIAS;
1588 }
1589 OUTPUT:
1590 RETVAL
1403 1591
1404void 1592void
1405aioreq_nice (int nice = 0) 1593aioreq_nice (int nice = 0)
1406 CODE: 1594 CODE:
1407 nice = next_pri - nice; 1595 nice = next_pri - nice;
1408 if (nice < PRI_MIN) nice = PRI_MIN; 1596 if (nice < PRI_MIN) nice = PRI_MIN;
1409 if (nice > PRI_MAX) nice = PRI_MAX; 1597 if (nice > PRI_MAX) nice = PRI_MAX;
1410 next_pri = nice + PRI_BIAS; 1598 next_pri = nice + PRI_BIAS;
1411 1599
1412void 1600void
1413flush () 1601flush ()
1414 PROTOTYPE: 1602 PROTOTYPE:
1415 CODE: 1603 CODE:
… …
1439 1627
1440int 1628int
1441poll_cb(...) 1629poll_cb(...)
1442 PROTOTYPE: 1630 PROTOTYPE:
1443 CODE: 1631 CODE:
1444 RETVAL = poll_cb (0); 1632 RETVAL = poll_cb ();
1445 OUTPUT:
1446 RETVAL
1447
1448int
1449poll_some(int max = 0)
1450 PROTOTYPE: $
1451 CODE:
1452 RETVAL = poll_cb (max);
1453 OUTPUT: 1633 OUTPUT:
1454 RETVAL 1634 RETVAL
1455 1635
1456void 1636void
1457poll_wait() 1637poll_wait()
… …
1466 CODE: 1646 CODE:
1467 RETVAL = nreqs; 1647 RETVAL = nreqs;
1468 OUTPUT: 1648 OUTPUT:
1469 RETVAL 1649 RETVAL
1470 1650
1651int
1652nready()
1653 PROTOTYPE:
1654 CODE:
1655 RETVAL = get_nready ();
1656 OUTPUT:
1657 RETVAL
1658
1659int
1660npending()
1661 PROTOTYPE:
1662 CODE:
1663 RETVAL = get_npending ();
1664 OUTPUT:
1665 RETVAL
1666
1667int
1668nthreads()
1669 PROTOTYPE:
1670 CODE:
1671 if (WORDACCESS_UNSAFE) LOCK (wrklock);
1672 RETVAL = started;
1673 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1674 OUTPUT:
1675 RETVAL
1676
1471PROTOTYPES: DISABLE 1677PROTOTYPES: DISABLE
1472 1678
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1679MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 1680
1475void 1681void
… …
1526void 1732void
1527result (aio_req grp, ...) 1733result (aio_req grp, ...)
1528 CODE: 1734 CODE:
1529{ 1735{
1530 int i; 1736 int i;
1737 AV *av;
1738
1739 grp->errorno = errno;
1740
1531 AV *av = newAV (); 1741 av = newAV ();
1532 1742
1533 for (i = 1; i < items; ++i ) 1743 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 1744 av_push (av, newSVsv (ST (i)));
1535 1745
1536 SvREFCNT_dec (grp->data); 1746 SvREFCNT_dec (grp->data);
1537 grp->data = (SV *)av; 1747 grp->data = (SV *)av;
1538} 1748}
1749
1750void
1751errno (aio_req grp, int errorno = errno)
1752 CODE:
1753 grp->errorno = errorno;
1539 1754
1540void 1755void
1541limit (aio_req grp, int limit) 1756limit (aio_req grp, int limit)
1542 CODE: 1757 CODE:
1543 grp->fd2 = limit; 1758 grp->fd2 = limit;

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines