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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.58 by root, Mon Oct 23 18:48:08 2006 UTC vs.
Revision 1.68 by root, Tue Oct 24 03:40:25 2006 UTC

1#if __linux
2# define _GNU_SOURCE
3#endif
4
1#define _REENTRANT 1 5#define _REENTRANT 1
6
2#include <errno.h> 7#include <errno.h>
3 8
4#include "EXTERN.h" 9#include "EXTERN.h"
5#include "perl.h" 10#include "perl.h"
6#include "XSUB.h" 11#include "XSUB.h"
… …
41# define NAME_MAX 4096 46# define NAME_MAX 4096
42#endif 47#endif
43 48
44#if __ia64 49#if __ia64
45# define STACKSIZE 65536 50# define STACKSIZE 65536
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
52# define STACKSIZE PTHREAD_STACK_MIN
46#else 53#else
47# define STACKSIZE 8192 54# define STACKSIZE 16384
48#endif 55#endif
56
57/* buffer size for various temporary buffers */
58#define AIO_BUFSIZE 65536
59
60#define dBUF \
61 char *aio_buf = malloc (AIO_BUFSIZE); \
62 if (!aio_buf) \
63 return -1;
64
65#define fBUF free (aio_buf)
49 66
50enum { 67enum {
51 REQ_QUIT, 68 REQ_QUIT,
52 REQ_OPEN, REQ_CLOSE, 69 REQ_OPEN, REQ_CLOSE,
53 REQ_READ, REQ_WRITE, REQ_READAHEAD, 70 REQ_READ, REQ_WRITE, REQ_READAHEAD,
… …
66 83
67typedef struct aio_cb 84typedef struct aio_cb
68{ 85{
69 struct aio_cb *volatile next; 86 struct aio_cb *volatile next;
70 87
71 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
72
73 SV *self; /* the perl counterpart of this request, if any */
74
75 SV *data, *callback; 88 SV *data, *callback;
76 SV *fh, *fh2; 89 SV *fh, *fh2;
77 void *dataptr, *data2ptr; 90 void *dataptr, *data2ptr;
78 Stat_t *statdata; 91 Stat_t *statdata;
79 off_t offset; 92 off_t offset;
80 size_t length; 93 size_t length;
81 ssize_t result; 94 ssize_t result;
82 95
96 STRLEN dataoffset;
83 int type; 97 int type;
84 int fd, fd2; 98 int fd, fd2;
85 int errorno; 99 int errorno;
86 STRLEN dataoffset;
87 mode_t mode; /* open */ 100 mode_t mode; /* open */
101
102 unsigned char flags;
88 unsigned char pri; 103 unsigned char pri;
89 unsigned char flags; 104
105 SV *self; /* the perl counterpart of this request, if any */
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
90} aio_cb; 107} aio_cb;
91 108
92enum { 109enum {
93 FLAG_CANCELLED = 0x01, 110 FLAG_CANCELLED = 0x01,
94}; 111};
95 112
96typedef aio_cb *aio_req; 113typedef aio_cb *aio_req;
97typedef aio_cb *aio_req_ornot; 114typedef aio_cb *aio_req_ornot;
115
116enum {
117 PRI_MIN = -4,
118 PRI_MAX = 4,
119
120 DEFAULT_PRI = 0,
121 PRI_BIAS = -PRI_MIN,
122 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
123};
124
125static int next_pri = DEFAULT_PRI + PRI_BIAS;
98 126
99static int started, wanted; 127static int started, wanted;
100static volatile int nreqs; 128static volatile int nreqs;
101static int max_outstanding = 1<<30; 129static int max_outstanding = 1<<30;
102static int respipe [2]; 130static int respipe [2];
103 131
132#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
133# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
134#else
135# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
136#endif
137
104static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 138static pthread_mutex_t reslock = AIO_MUTEX_INIT;
105static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 139static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
106static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 140static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
107 141
108static volatile aio_req reqs, reqe; /* queue start, queue end */ 142/*
109static volatile aio_req ress, rese; /* queue start, queue end */ 143 * a somewhat faster data structure might be nice, but
144 * with 8 priorities this actually needs <20 insns
145 * per shift, the most expensive operation.
146 */
147typedef struct {
148 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
149 int size;
150} reqq;
151
152static reqq req_queue;
153static reqq res_queue;
154
155int reqq_push (reqq *q, aio_req req)
156{
157 int pri = req->pri;
158 req->next = 0;
159
160 if (q->qe[pri])
161 {
162 q->qe[pri]->next = req;
163 q->qe[pri] = req;
164 }
165 else
166 q->qe[pri] = q->qs[pri] = req;
167
168 return q->size++;
169}
170
171aio_req reqq_shift (reqq *q)
172{
173 int pri;
174
175 if (!q->size)
176 return 0;
177
178 --q->size;
179
180 for (pri = NUM_PRI; pri--; )
181 {
182 aio_req req = q->qs[pri];
183
184 if (req)
185 {
186 if (!(q->qs[pri] = req->next))
187 q->qe[pri] = 0;
188
189 return req;
190 }
191 }
192
193 abort ();
194}
110 195
111static void req_invoke (aio_req req); 196static void req_invoke (aio_req req);
112static void req_free (aio_req req); 197static void req_free (aio_req req);
113 198
114/* must be called at most once */ 199/* must be called at most once */
… …
148 ENTER; 233 ENTER;
149 SAVETMPS; 234 SAVETMPS;
150 PUSHMARK (SP); 235 PUSHMARK (SP);
151 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 236 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
152 PUTBACK; 237 PUTBACK;
153 call_sv (grp->fh2, G_VOID | G_EVAL); 238 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);
154 SPAGAIN; 239 SPAGAIN;
155 FREETMPS; 240 FREETMPS;
156 LEAVE; 241 LEAVE;
157 } 242 }
158 243
… …
181 } 266 }
182} 267}
183 268
184static void poll_wait () 269static void poll_wait ()
185{ 270{
186 if (nreqs && !ress)
187 {
188 fd_set rfd; 271 fd_set rfd;
272
273 while (nreqs)
274 {
275 int size;
276#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
277 pthread_mutex_lock (&reslock);
278#endif
279 size = res_queue.size;
280#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
281 pthread_mutex_unlock (&reslock);
282#endif
283
284 if (size)
285 return;
286
189 FD_ZERO(&rfd); 287 FD_ZERO(&rfd);
190 FD_SET(respipe [0], &rfd); 288 FD_SET(respipe [0], &rfd);
191 289
192 select (respipe [0] + 1, &rfd, 0, 0, 0); 290 select (respipe [0] + 1, &rfd, 0, 0, 0);
193 } 291 }
194} 292}
195 293
196static void req_invoke (aio_req req) 294static void req_invoke (aio_req req)
197{ 295{
198 dSP; 296 dSP;
199 int errorno = errno;
200 297
201 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) 298 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
202 return; 299 {
203
204 errno = req->errorno; 300 errno = req->errorno;
205 301
206 ENTER; 302 ENTER;
207 SAVETMPS; 303 SAVETMPS;
208 PUSHMARK (SP); 304 PUSHMARK (SP);
209 EXTEND (SP, 1); 305 EXTEND (SP, 1);
210 306
211 switch (req->type) 307 switch (req->type)
212 {
213 case REQ_READDIR:
214 { 308 {
215 SV *rv = &PL_sv_undef; 309 case REQ_READDIR:
216
217 if (req->result >= 0)
218 { 310 {
219 char *buf = req->data2ptr; 311 SV *rv = &PL_sv_undef;
220 AV *av = newAV ();
221 312
222 while (req->result) 313 if (req->result >= 0)
223 { 314 {
315 char *buf = req->data2ptr;
316 AV *av = newAV ();
317
318 while (req->result)
319 {
224 SV *sv = newSVpv (buf, 0); 320 SV *sv = newSVpv (buf, 0);
225 321
226 av_push (av, sv); 322 av_push (av, sv);
227 buf += SvCUR (sv) + 1; 323 buf += SvCUR (sv) + 1;
228 req->result--; 324 req->result--;
325 }
326
327 rv = sv_2mortal (newRV_noinc ((SV *)av));
229 } 328 }
230 329
231 rv = sv_2mortal (newRV_noinc ((SV *)av)); 330 PUSHs (rv);
232 } 331 }
332 break;
233 333
234 PUSHs (rv); 334 case REQ_OPEN:
335 {
336 /* convert fd to fh */
337 SV *fh;
338
339 PUSHs (sv_2mortal (newSViv (req->result)));
340 PUTBACK;
341 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
342 SPAGAIN;
343
344 fh = SvREFCNT_inc (POPs);
345
346 PUSHMARK (SP);
347 XPUSHs (sv_2mortal (fh));
348 }
349 break;
350
351 case REQ_GROUP:
352 req->fd = 2; /* mark group as finished */
353
354 if (req->data)
355 {
356 int i;
357 AV *av = (AV *)req->data;
358
359 EXTEND (SP, AvFILL (av) + 1);
360 for (i = 0; i <= AvFILL (av); ++i)
361 PUSHs (*av_fetch (av, i, 0));
362 }
363 break;
364
365 case REQ_NOP:
366 case REQ_SLEEP:
367 break;
368
369 default:
370 PUSHs (sv_2mortal (newSViv (req->result)));
371 break;
235 } 372 }
236 break;
237 373
238 case REQ_OPEN:
239 {
240 /* convert fd to fh */
241 SV *fh;
242 374
243 PUSHs (sv_2mortal (newSViv (req->result)));
244 PUTBACK; 375 PUTBACK;
245 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
246 SPAGAIN;
247
248 fh = SvREFCNT_inc (POPs);
249
250 PUSHMARK (SP);
251 XPUSHs (sv_2mortal (fh));
252 }
253 break;
254
255 case REQ_GROUP:
256 req->fd = 2; /* mark group as finished */
257
258 if (req->data)
259 {
260 int i;
261 AV *av = (AV *)req->data;
262
263 EXTEND (SP, AvFILL (av) + 1);
264 for (i = 0; i <= AvFILL (av); ++i)
265 PUSHs (*av_fetch (av, i, 0));
266 }
267 break;
268
269 case REQ_NOP:
270 case REQ_SLEEP:
271 break;
272
273 default:
274 PUSHs (sv_2mortal (newSViv (req->result)));
275 break;
276 }
277
278
279 PUTBACK;
280 call_sv (req->callback, G_VOID | G_EVAL); 376 call_sv (req->callback, G_VOID | G_EVAL);
281 SPAGAIN; 377 SPAGAIN;
282 378
283 FREETMPS; 379 FREETMPS;
284 LEAVE; 380 LEAVE;
285
286 errno = errorno;
287
288 if (SvTRUE (ERRSV))
289 { 381 }
290 req_free (req);
291 croak (0);
292 }
293}
294 382
295static void req_free (aio_req req)
296{
297 if (req->grp) 383 if (req->grp)
298 { 384 {
299 aio_req grp = req->grp; 385 aio_req grp = req->grp;
300 386
301 /* unlink request */ 387 /* unlink request */
… …
306 grp->grp_first = req->grp_next; 392 grp->grp_first = req->grp_next;
307 393
308 aio_grp_dec (grp); 394 aio_grp_dec (grp);
309 } 395 }
310 396
397 if (SvTRUE (ERRSV))
398 {
399 req_free (req);
400 croak (0);
401 }
402}
403
404static void req_free (aio_req req)
405{
311 if (req->self) 406 if (req->self)
312 { 407 {
313 sv_unmagic (req->self, PERL_MAGIC_ext); 408 sv_unmagic (req->self, PERL_MAGIC_ext);
314 SvREFCNT_dec (req->self); 409 SvREFCNT_dec (req->self);
315 } 410 }
… …
347 aio_req req; 442 aio_req req;
348 443
349 for (;;) 444 for (;;)
350 { 445 {
351 pthread_mutex_lock (&reslock); 446 pthread_mutex_lock (&reslock);
352 req = ress; 447 req = reqq_shift (&res_queue);
353 448
354 if (req) 449 if (req)
355 { 450 {
356 ress = req->next;
357
358 if (!ress) 451 if (!res_queue.size)
359 { 452 {
360 /* read any signals sent by the worker threads */ 453 /* read any signals sent by the worker threads */
361 char buf [32]; 454 char buf [32];
362 while (read (respipe [0], buf, 32) == 32) 455 while (read (respipe [0], buf, 32) == 32)
363 ; 456 ;
364
365 rese = 0;
366 } 457 }
367 } 458 }
368 459
369 pthread_mutex_unlock (&reslock); 460 pthread_mutex_unlock (&reslock);
370 461
… …
433 start_thread (); 524 start_thread ();
434 525
435 ++nreqs; 526 ++nreqs;
436 527
437 pthread_mutex_lock (&reqlock); 528 pthread_mutex_lock (&reqlock);
438 529 reqq_push (&req_queue, req);
439 req->next = 0;
440
441 if (reqe)
442 {
443 reqe->next = req;
444 reqe = req;
445 }
446 else
447 reqe = reqs = req;
448
449 pthread_cond_signal (&reqwait); 530 pthread_cond_signal (&reqwait);
450 pthread_mutex_unlock (&reqlock); 531 pthread_mutex_unlock (&reqlock);
451 532
452 if (nreqs > max_outstanding) 533 if (nreqs > max_outstanding)
453 for (;;) 534 for (;;)
… …
462} 543}
463 544
464static void end_thread (void) 545static void end_thread (void)
465{ 546{
466 aio_req req; 547 aio_req req;
548
467 Newz (0, req, 1, aio_cb); 549 Newz (0, req, 1, aio_cb);
550
468 req->type = REQ_QUIT; 551 req->type = REQ_QUIT;
552 req->pri = PRI_MAX + PRI_BIAS;
469 553
470 req_send (req); 554 req_send (req);
471} 555}
472 556
473static void min_parallel (int nthreads) 557static void min_parallel (int nthreads)
… …
560#if !HAVE_READAHEAD 644#if !HAVE_READAHEAD
561# define readahead aio_readahead 645# define readahead aio_readahead
562 646
563static ssize_t readahead (int fd, off_t offset, size_t count) 647static ssize_t readahead (int fd, off_t offset, size_t count)
564{ 648{
565 char readahead_buf[4096]; 649 dBUF;
566 650
567 while (count > 0) 651 while (count > 0)
568 { 652 {
569 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 653 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
570 654
571 pread (fd, readahead_buf, len, offset); 655 pread (fd, aio_buf, len, offset);
572 offset += len; 656 offset += len;
573 count -= len; 657 count -= len;
574 } 658 }
659
660 fBUF;
575 661
576 errno = 0; 662 errno = 0;
577} 663}
578#endif 664#endif
579 665
… …
665#endif 751#endif
666 ) 752 )
667 ) 753 )
668 { 754 {
669 /* emulate sendfile. this is a major pain in the ass */ 755 /* emulate sendfile. this is a major pain in the ass */
670 char buf[4096]; 756 dBUF;
757
671 res = 0; 758 res = 0;
672 759
673 while (count) 760 while (count)
674 { 761 {
675 ssize_t cnt; 762 ssize_t cnt;
676 763
677 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); 764 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
678 765
679 if (cnt <= 0) 766 if (cnt <= 0)
680 { 767 {
681 if (cnt && !res) res = -1; 768 if (cnt && !res) res = -1;
682 break; 769 break;
683 } 770 }
684 771
685 cnt = write (ofd, buf, cnt); 772 cnt = write (ofd, aio_buf, cnt);
686 773
687 if (cnt <= 0) 774 if (cnt <= 0)
688 { 775 {
689 if (cnt && !res) res = -1; 776 if (cnt && !res) res = -1;
690 break; 777 break;
… …
692 779
693 offset += cnt; 780 offset += cnt;
694 res += cnt; 781 res += cnt;
695 count -= cnt; 782 count -= cnt;
696 } 783 }
784
785 fBUF;
697 } 786 }
698 787
699 return res; 788 return res;
700} 789}
701 790
702/* read a full directory */ 791/* read a full directory */
703static int scandir_ (const char *path, void **namesp) 792static int scandir_ (const char *path, void **namesp)
704{ 793{
705 DIR *dirp = opendir (path); 794 DIR *dirp;
706 union 795 union
707 { 796 {
708 struct dirent d; 797 struct dirent d;
709 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; 798 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
710 } u; 799 } *u;
711 struct dirent *entp; 800 struct dirent *entp;
712 char *name, *names; 801 char *name, *names;
713 int memlen = 4096; 802 int memlen = 4096;
714 int memofs = 0; 803 int memofs = 0;
715 int res = 0; 804 int res = 0;
716 int errorno; 805 int errorno;
717 806
807 dirp = opendir (path);
718 if (!dirp) 808 if (!dirp)
719 return -1; 809 return -1;
720 810
811 u = malloc (sizeof (*u));
721 names = malloc (memlen); 812 names = malloc (memlen);
722 813
814 if (u && names)
723 for (;;) 815 for (;;)
724 { 816 {
817 errno = 0;
725 errno = 0, readdir_r (dirp, &u.d, &entp); 818 readdir_r (dirp, &u->d, &entp);
726 819
727 if (!entp) 820 if (!entp)
728 break; 821 break;
729 822
730 name = entp->d_name; 823 name = entp->d_name;
731 824
732 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) 825 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
733 { 826 {
734 int len = strlen (name) + 1; 827 int len = strlen (name) + 1;
735 828
736 res++; 829 res++;
737 830
738 while (memofs + len > memlen) 831 while (memofs + len > memlen)
739 { 832 {
740 memlen *= 2; 833 memlen *= 2;
741 names = realloc (names, memlen); 834 names = realloc (names, memlen);
742 if (!names) 835 if (!names)
743 break; 836 break;
744 } 837 }
745 838
746 memcpy (names + memofs, name, len); 839 memcpy (names + memofs, name, len);
747 memofs += len; 840 memofs += len;
748 } 841 }
749 } 842 }
750 843
751 errorno = errno; 844 errorno = errno;
845 free (u);
752 closedir (dirp); 846 closedir (dirp);
753 847
754 if (errorno) 848 if (errorno)
755 { 849 {
756 free (names); 850 free (names);
… …
773 { 867 {
774 pthread_mutex_lock (&reqlock); 868 pthread_mutex_lock (&reqlock);
775 869
776 for (;;) 870 for (;;)
777 { 871 {
778 req = reqs; 872 req = reqq_shift (&req_queue);
779
780 if (reqs)
781 {
782 reqs = reqs->next;
783 if (!reqs) reqe = 0;
784 }
785 873
786 if (req) 874 if (req)
787 break; 875 break;
788 876
789 pthread_cond_wait (&reqwait, &reqlock); 877 pthread_cond_wait (&reqwait, &reqlock);
790 } 878 }
791 879
792 pthread_mutex_unlock (&reqlock); 880 pthread_mutex_unlock (&reqlock);
793 881
794 errno = 0; /* strictly unnecessary */ 882 errno = 0; /* strictly unnecessary */
883 type = req->type; /* remember type for QUIT check */
795 884
796 if (!(req->flags & FLAG_CANCELLED)) 885 if (!(req->flags & FLAG_CANCELLED))
797 switch (type = req->type) /* remember type for QUIT check */ 886 switch (type)
798 { 887 {
799 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 888 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
800 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 889 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
801 890
802 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 891 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
… …
840 929
841 req->errorno = errno; 930 req->errorno = errno;
842 931
843 pthread_mutex_lock (&reslock); 932 pthread_mutex_lock (&reslock);
844 933
845 req->next = 0; 934 if (!reqq_push (&res_queue, req))
846
847 if (rese)
848 {
849 rese->next = req;
850 rese = req;
851 }
852 else
853 {
854 rese = ress = req;
855
856 /* write a dummy byte to the pipe so fh becomes ready */ 935 /* write a dummy byte to the pipe so fh becomes ready */
857 write (respipe [1], &respipe, 1); 936 write (respipe [1], &respipe, 1);
858 }
859 937
860 pthread_mutex_unlock (&reslock); 938 pthread_mutex_unlock (&reslock);
861 } 939 }
862 while (type != REQ_QUIT); 940 while (type != REQ_QUIT);
863 941
… …
894{ 972{
895 aio_req prv; 973 aio_req prv;
896 974
897 started = 0; 975 started = 0;
898 976
899 while (reqs) 977 while (prv = reqq_shift (&req_queue))
900 {
901 prv = reqs;
902 reqs = prv->next;
903 req_free (prv); 978 req_free (prv);
904 }
905 979
906 reqs = reqe = 0; 980 while (prv = reqq_shift (&res_queue))
907
908 while (ress)
909 {
910 prv = ress;
911 ress = prv->next;
912 req_free (prv); 981 req_free (prv);
913 } 982
914
915 ress = rese = 0;
916
917 close (respipe [0]); 983 close (respipe [0]);
918 close (respipe [1]); 984 close (respipe [1]);
919 create_pipe (); 985 create_pipe ();
920 986
921 atfork_parent (); 987 atfork_parent ();
922} 988}
923 989
924#define dREQ \ 990#define dREQ \
925 aio_req req; \ 991 aio_req req; \
992 int req_pri = next_pri; \
993 next_pri = DEFAULT_PRI + PRI_BIAS; \
926 \ 994 \
927 if (SvOK (callback) && !SvROK (callback)) \ 995 if (SvOK (callback) && !SvROK (callback)) \
928 croak ("callback must be undef or of reference type"); \ 996 croak ("callback must be undef or of reference type"); \
929 \ 997 \
930 Newz (0, req, 1, aio_cb); \ 998 Newz (0, req, 1, aio_cb); \
931 if (!req) \ 999 if (!req) \
932 croak ("out of memory during aio_req allocation"); \ 1000 croak ("out of memory during aio_req allocation"); \
933 \ 1001 \
934 req->callback = newSVsv (callback) 1002 req->callback = newSVsv (callback); \
1003 req->pri = req_pri
935 1004
936#define REQ_SEND \ 1005#define REQ_SEND \
937 req_send (req); \ 1006 req_send (req); \
938 \ 1007 \
939 if (GIMME_V != G_VOID) \ 1008 if (GIMME_V != G_VOID) \
… …
1214 SV * callback 1283 SV * callback
1215 PROTOTYPE: ;$ 1284 PROTOTYPE: ;$
1216 PPCODE: 1285 PPCODE:
1217{ 1286{
1218 dREQ; 1287 dREQ;
1288
1219 req->type = REQ_GROUP; 1289 req->type = REQ_GROUP;
1220 req_send (req); 1290 req_send (req);
1291
1221 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1292 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1222} 1293}
1223 1294
1224void 1295void
1225aio_nop (callback=&PL_sv_undef) 1296aio_nop (callback=&PL_sv_undef)
… …
1230 1301
1231 req->type = REQ_NOP; 1302 req->type = REQ_NOP;
1232 1303
1233 REQ_SEND; 1304 REQ_SEND;
1234} 1305}
1306
1307void
1308aioreq_pri (int pri = DEFAULT_PRI)
1309 CODE:
1310 if (pri < PRI_MIN) pri = PRI_MIN;
1311 if (pri > PRI_MAX) pri = PRI_MAX;
1312 next_pri = pri + PRI_BIAS;
1313
1314void
1315aioreq_nice (int nice = 0)
1316 CODE:
1317 nice = next_pri - nice;
1318 if (nice < PRI_MIN) nice = PRI_MIN;
1319 if (nice > PRI_MAX) nice = PRI_MAX;
1320 next_pri = nice + PRI_BIAS;
1235 1321
1236void 1322void
1237flush () 1323flush ()
1238 PROTOTYPE: 1324 PROTOTYPE:
1239 CODE: 1325 CODE:
… …
1288 1374
1289MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1375MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1290 1376
1291void 1377void
1292cancel (aio_req_ornot req) 1378cancel (aio_req_ornot req)
1293 PROTOTYPE:
1294 CODE: 1379 CODE:
1295 req_cancel (req); 1380 req_cancel (req);
1296 1381
1297void 1382void
1298cb (aio_req req, SV *callback=&PL_sv_undef) 1383cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1299 CODE: 1384 CODE:
1300 SvREFCNT_dec (req->callback); 1385 SvREFCNT_dec (req->callback);
1301 req->callback = newSVsv (callback); 1386 req->callback = newSVsv (callback);
1302 1387
1303MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1388MODULE = IO::AIO PACKAGE = IO::AIO::GRP
… …
1348 SvREFCNT_dec (grp->data); 1433 SvREFCNT_dec (grp->data);
1349 grp->data = (SV *)av; 1434 grp->data = (SV *)av;
1350} 1435}
1351 1436
1352void 1437void
1353feed_limit (aio_req grp, int limit) 1438limit (aio_req grp, int limit)
1354 CODE: 1439 CODE:
1355 grp->fd2 = limit; 1440 grp->fd2 = limit;
1356 aio_grp_feed (grp); 1441 aio_grp_feed (grp);
1357 1442
1358void 1443void

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