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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.47 by root, Sun Oct 22 10:10:23 2006 UTC

… …
8#include "autoconf/config.h" 8#include "autoconf/config.h"
9 9
10#include <pthread.h> 10#include <pthread.h>
11 11
12#include <stddef.h> 12#include <stddef.h>
13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
13#include <sys/types.h> 16#include <sys/types.h>
14#include <sys/stat.h> 17#include <sys/stat.h>
15#include <limits.h> 18#include <limits.h>
16#include <unistd.h> 19#include <unistd.h>
17#include <fcntl.h> 20#include <fcntl.h>
… …
31# else 34# else
32# error sendfile support requested but not available 35# error sendfile support requested but not available
33# endif 36# endif
34#endif 37#endif
35 38
39/* used for struct dirent, AIX doesn't provide it */
40#ifndef NAME_MAX
41# define NAME_MAX 4096
42#endif
43
36#if __ia64 44#if __ia64
37# define STACKSIZE 65536 45# define STACKSIZE 65536
38#else 46#else
39# define STACKSIZE 8192 47# define STACKSIZE 8192
40#endif 48#endif
… …
44 REQ_OPEN, REQ_CLOSE, 52 REQ_OPEN, REQ_CLOSE,
45 REQ_READ, REQ_WRITE, REQ_READAHEAD, 53 REQ_READ, REQ_WRITE, REQ_READAHEAD,
46 REQ_SENDFILE, 54 REQ_SENDFILE,
47 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 55 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
48 REQ_FSYNC, REQ_FDATASYNC, 56 REQ_FSYNC, REQ_FDATASYNC,
49 REQ_UNLINK, REQ_RMDIR, 57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
50 REQ_READDIR, 58 REQ_READDIR,
51 REQ_SYMLINK, 59 REQ_LINK, REQ_SYMLINK,
60 REQ_SLEEP,
61 REQ_GROUP,
52}; 62};
53 63
64#define AIO_REQ_KLASS "IO::AIO::REQ"
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66
54typedef struct aio_cb { 67typedef struct aio_cb
68{
69 struct aio_cb *grp, *grp_prev, *grp_next;
70
55 struct aio_cb *volatile next; 71 struct aio_cb *volatile next;
56 72
57 int type; 73 SV *self; /* the perl counterpart of this request, if any */
58 74
59 /* should receive a cleanup, with unions */ 75 SV *data, *callback;
60 int fd, fd2; 76 SV *fh, *fh2;
77 void *dataptr, *data2ptr;
78 Stat_t *statdata;
61 off_t offset; 79 off_t offset;
62 size_t length; 80 size_t length;
63 ssize_t result; 81 ssize_t result;
82
83 int type;
84 int fd, fd2;
85 int errorno;
86 STRLEN dataoffset;
64 mode_t mode; /* open */ 87 mode_t mode; /* open */
65 int errorno; 88 unsigned char cancelled;
66 SV *data, *callback;
67 SV *fh, *fh2;
68 void *dataptr, *data2ptr;
69 STRLEN dataoffset;
70
71 Stat_t *statdata;
72} aio_cb; 89} aio_cb;
73 90
74typedef aio_cb *aio_req; 91typedef aio_cb *aio_req;
92typedef aio_cb *aio_req_ornot;
75 93
76static int started, wanted; 94static int started, wanted;
77static volatile int nreqs; 95static volatile int nreqs;
78static int max_outstanding = 1<<30; 96static int max_outstanding = 1<<30;
79static int respipe [2]; 97static int respipe [2];
… …
83static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84 102
85static volatile aio_req reqs, reqe; /* queue start, queue end */ 103static volatile aio_req reqs, reqe; /* queue start, queue end */
86static volatile aio_req ress, rese; /* queue start, queue end */ 104static volatile aio_req ress, rese; /* queue start, queue end */
87 105
88static void free_req (aio_req req) 106static void req_free (aio_req req);
89{
90 if (req->data)
91 SvREFCNT_dec (req->data);
92 107
93 if (req->fh) 108/* must be called at most once */
94 SvREFCNT_dec (req->fh); 109static SV *req_sv (aio_req req, const char *klass)
110{
111 req->self = (SV *)newHV ();
112 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
95 113
96 if (req->fh2) 114 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
97 SvREFCNT_dec (req->fh2);
98
99 if (req->statdata)
100 Safefree (req->statdata);
101
102 if (req->callback)
103 SvREFCNT_dec (req->callback);
104
105 if (req->type == REQ_READDIR && req->result >= 0)
106 free (req->data2ptr);
107
108 Safefree (req);
109} 115}
110 116
111static void 117static aio_req SvAIO_REQ (SV *sv)
112poll_wait () 118{
119 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))
120 croak ("object of class " AIO_REQ_KLASS " expected");
121
122 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
123
124 return mg ? (aio_req)mg->mg_ptr : 0;
125}
126
127static void poll_wait ()
113{ 128{
114 if (nreqs && !ress) 129 if (nreqs && !ress)
115 { 130 {
116 fd_set rfd; 131 fd_set rfd;
117 FD_ZERO(&rfd); 132 FD_ZERO(&rfd);
… …
119 134
120 select (respipe [0] + 1, &rfd, 0, 0, 0); 135 select (respipe [0] + 1, &rfd, 0, 0, 0);
121 } 136 }
122} 137}
123 138
124static int 139static void req_invoke (aio_req req)
125poll_cb () 140{
141 dSP;
142 int errorno = errno;
143
144 if (req->cancelled || !SvOK (req->callback))
145 return;
146
147 errno = req->errorno;
148
149 ENTER;
150 PUSHMARK (SP);
151
152 switch (req->type)
153 {
154 case REQ_READDIR:
155 {
156 SV *rv = &PL_sv_undef;
157
158 if (req->result >= 0)
159 {
160 char *buf = req->data2ptr;
161 AV *av = newAV ();
162
163 while (req->result)
164 {
165 SV *sv = newSVpv (buf, 0);
166
167 av_push (av, sv);
168 buf += SvCUR (sv) + 1;
169 req->result--;
170 }
171
172 rv = sv_2mortal (newRV_noinc ((SV *)av));
173 }
174
175 XPUSHs (rv);
176 }
177 break;
178
179 case REQ_OPEN:
180 {
181 /* convert fd to fh */
182 SV *fh;
183
184 XPUSHs (sv_2mortal (newSViv (req->result)));
185 PUTBACK;
186 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
187 SPAGAIN;
188
189 fh = SvREFCNT_inc (POPs);
190
191 PUSHMARK (SP);
192 XPUSHs (sv_2mortal (fh));
193 }
194 break;
195
196 case REQ_SLEEP:
197 case REQ_GROUP:
198 break;
199
200 default:
201 XPUSHs (sv_2mortal (newSViv (req->result)));
202 break;
203 }
204
205
206 PUTBACK;
207 call_sv (req->callback, G_VOID | G_EVAL);
208 SPAGAIN;
209
210 if (SvTRUE (ERRSV))
211 {
212 req_free (req);
213 croak (0);
214 }
215
216 LEAVE;
217
218 errno = errorno;
219}
220
221static void req_free (aio_req req)
222{
223 if (req->grp)
224 {
225 aio_req grp = req->grp;
226
227 /* unlink request */
228 req->grp_next->grp_prev = req->grp_prev;
229 req->grp_prev->grp_next = req->grp_next;
230
231 if (grp->grp_next == grp && grp->fd)
232 {
233 req_invoke (grp);
234 req_free (grp);
235 }
236 }
237
238 if (req->self)
239 {
240 sv_unmagic (req->self, PERL_MAGIC_ext);
241 SvREFCNT_dec (req->self);
242 }
243
244 if (req->data)
245 SvREFCNT_dec (req->data);
246
247 if (req->fh)
248 SvREFCNT_dec (req->fh);
249
250 if (req->fh2)
251 SvREFCNT_dec (req->fh2);
252
253 if (req->statdata)
254 Safefree (req->statdata);
255
256 if (req->callback)
257 SvREFCNT_dec (req->callback);
258
259 if (req->type == REQ_READDIR && req->result >= 0)
260 free (req->data2ptr);
261
262 Safefree (req);
263}
264
265static void req_cancel (aio_req req)
266{
267 req->cancelled = 1;
268
269 if (req->type == REQ_GROUP)
270 {
271 aio_req sub;
272
273 for (sub = req->grp_next; sub != req; sub = sub->grp_next)
274 req_cancel (sub);
275 }
276}
277
278static int poll_cb ()
126{ 279{
127 dSP; 280 dSP;
128 int count = 0; 281 int count = 0;
129 int do_croak = 0; 282 int do_croak = 0;
130 aio_req req; 283 aio_req req;
… …
156 309
157 nreqs--; 310 nreqs--;
158 311
159 if (req->type == REQ_QUIT) 312 if (req->type == REQ_QUIT)
160 started--; 313 started--;
314 else if (req->type == REQ_GROUP && req->grp_next != req)
315 {
316 req->fd = 1; /* mark request as delayed */
317 continue;
318 }
161 else 319 else
162 { 320 {
163 int errorno = errno;
164 errno = req->errorno;
165
166 if (req->type == REQ_READ) 321 if (req->type == REQ_READ)
167 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); 322 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
168 323
169 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) 324 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
170 SvREADONLY_off (req->data); 325 SvREADONLY_off (req->data);
… …
174 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 329 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
175 PL_laststatval = req->result; 330 PL_laststatval = req->result;
176 PL_statcache = *(req->statdata); 331 PL_statcache = *(req->statdata);
177 } 332 }
178 333
179 ENTER; 334 req_invoke (req);
180 PUSHMARK (SP);
181 335
182 if (req->type == REQ_READDIR)
183 {
184 SV *rv = &PL_sv_undef;
185
186 if (req->result >= 0)
187 {
188 char *buf = req->data2ptr;
189 AV *av = newAV ();
190
191 while (req->result)
192 {
193 SV *sv = newSVpv (buf, 0);
194
195 av_push (av, sv);
196 buf += SvCUR (sv) + 1;
197 req->result--;
198 }
199
200 rv = sv_2mortal (newRV_noinc ((SV *)av));
201 }
202
203 XPUSHs (rv);
204 }
205 else
206 {
207 XPUSHs (sv_2mortal (newSViv (req->result)));
208
209 if (req->type == REQ_OPEN)
210 {
211 /* convert fd to fh */
212 SV *fh;
213
214 PUTBACK;
215 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
216 SPAGAIN;
217
218 fh = SvREFCNT_inc (POPs);
219
220 PUSHMARK (SP);
221 XPUSHs (sv_2mortal (fh));
222 }
223 }
224
225 if (SvOK (req->callback))
226 {
227 PUTBACK;
228 call_sv (req->callback, G_VOID | G_EVAL);
229 SPAGAIN;
230
231 if (SvTRUE (ERRSV))
232 {
233 free_req (req);
234 croak (0);
235 }
236 }
237
238 LEAVE;
239
240 errno = errorno;
241 count++; 336 count++;
242 } 337 }
243 338
244 free_req (req); 339 req_free (req);
245 } 340 }
246 341
247 return count; 342 return count;
248} 343}
249 344
250static void *aio_proc(void *arg); 345static void *aio_proc(void *arg);
251 346
252static void
253start_thread (void) 347static void start_thread (void)
254{ 348{
255 sigset_t fullsigset, oldsigset; 349 sigset_t fullsigset, oldsigset;
256 pthread_t tid; 350 pthread_t tid;
257 pthread_attr_t attr; 351 pthread_attr_t attr;
258 352
… …
267 started++; 361 started++;
268 362
269 sigprocmask (SIG_SETMASK, &oldsigset, 0); 363 sigprocmask (SIG_SETMASK, &oldsigset, 0);
270} 364}
271 365
272static void 366static void req_send (aio_req req)
273send_req (aio_req req)
274{ 367{
275 while (started < wanted && nreqs >= started) 368 while (started < wanted && nreqs >= started)
276 start_thread (); 369 start_thread ();
277 370
278 nreqs++; 371 nreqs++;
… …
302 395
303 poll_wait (); 396 poll_wait ();
304 } 397 }
305} 398}
306 399
307static void 400static void end_thread (void)
308end_thread (void)
309{ 401{
310 aio_req req; 402 aio_req req;
311 Newz (0, req, 1, aio_cb); 403 Newz (0, req, 1, aio_cb);
312 req->type = REQ_QUIT; 404 req->type = REQ_QUIT;
313 405
314 send_req (req); 406 req_send (req);
315} 407}
316 408
317static void min_parallel (int nthreads) 409static void min_parallel (int nthreads)
318{ 410{
319 if (wanted < nthreads) 411 if (wanted < nthreads)
… …
364 * normal read/write by using a mutex. slows down execution a lot, 456 * normal read/write by using a mutex. slows down execution a lot,
365 * but that's your problem, not mine. 457 * but that's your problem, not mine.
366 */ 458 */
367static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 459static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
368 460
369static ssize_t 461static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
370pread (int fd, void *buf, size_t count, off_t offset)
371{ 462{
372 ssize_t res; 463 ssize_t res;
373 off_t ooffset; 464 off_t ooffset;
374 465
375 pthread_mutex_lock (&preadwritelock); 466 pthread_mutex_lock (&preadwritelock);
… …
380 pthread_mutex_unlock (&preadwritelock); 471 pthread_mutex_unlock (&preadwritelock);
381 472
382 return res; 473 return res;
383} 474}
384 475
385static ssize_t
386pwrite (int fd, void *buf, size_t count, off_t offset) 476static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
387{ 477{
388 ssize_t res; 478 ssize_t res;
389 off_t ooffset; 479 off_t ooffset;
390 480
391 pthread_mutex_lock (&preadwritelock); 481 pthread_mutex_lock (&preadwritelock);
… …
404#endif 494#endif
405 495
406#if !HAVE_READAHEAD 496#if !HAVE_READAHEAD
407# define readahead aio_readahead 497# define readahead aio_readahead
408 498
409static ssize_t
410readahead (int fd, off_t offset, size_t count) 499static ssize_t readahead (int fd, off_t offset, size_t count)
411{ 500{
412 char readahead_buf[4096]; 501 char readahead_buf[4096];
413 502
414 while (count > 0) 503 while (count > 0)
415 { 504 {
… …
427#if !HAVE_READDIR_R 516#if !HAVE_READDIR_R
428# define readdir_r aio_readdir_r 517# define readdir_r aio_readdir_r
429 518
430static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 519static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
431 520
432static int
433readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 521static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
434{ 522{
435 struct dirent *e; 523 struct dirent *e;
436 int errorno; 524 int errorno;
437 525
438 pthread_mutex_lock (&readdirlock); 526 pthread_mutex_lock (&readdirlock);
… …
454 return e ? 0 : -1; 542 return e ? 0 : -1;
455} 543}
456#endif 544#endif
457 545
458/* sendfile always needs emulation */ 546/* sendfile always needs emulation */
459static ssize_t
460sendfile_ (int ofd, int ifd, off_t offset, size_t count) 547static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
461{ 548{
462 ssize_t res; 549 ssize_t res;
463 550
464 if (!count) 551 if (!count)
465 return 0; 552 return 0;
… …
499 586
500 if (res < 0 && sbytes) 587 if (res < 0 && sbytes)
501 res = sbytes; 588 res = sbytes;
502 } 589 }
503 590
591# endif
504# else 592#else
505 res = -1; 593 res = -1;
506 errno = ENOSYS; 594 errno = ENOSYS;
507# endif
508#endif 595#endif
509 596
510 if (res < 0 597 if (res < 0
511 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 598 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
512#if __solaris 599#if __solaris
… …
517 { 604 {
518 /* emulate sendfile. this is a major pain in the ass */ 605 /* emulate sendfile. this is a major pain in the ass */
519 char buf[4096]; 606 char buf[4096];
520 res = 0; 607 res = 0;
521 608
522 for (;;) 609 while (count)
523 { 610 {
524 ssize_t cnt; 611 ssize_t cnt;
525 612
526 cnt = pread (ifd, buf, 4096, offset); 613 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
527 614
528 if (cnt <= 0) 615 if (cnt <= 0)
529 { 616 {
530 if (cnt && !res) res = -1; 617 if (cnt && !res) res = -1;
531 break; 618 break;
… …
539 break; 626 break;
540 } 627 }
541 628
542 offset += cnt; 629 offset += cnt;
543 res += cnt; 630 res += cnt;
631 count -= cnt;
544 } 632 }
545 } 633 }
546 634
547 return res; 635 return res;
548} 636}
549 637
550/* read a full directory */ 638/* read a full directory */
551static int
552scandir_ (const char *path, void **namesp) 639static int scandir_ (const char *path, void **namesp)
553{ 640{
554 DIR *dirp = opendir (path); 641 DIR *dirp = opendir (path);
555 union 642 union
556 { 643 {
557 struct dirent d; 644 struct dirent d;
… …
611 return res; 698 return res;
612} 699}
613 700
614/*****************************************************************************/ 701/*****************************************************************************/
615 702
616static void *
617aio_proc (void *thr_arg) 703static void *aio_proc (void *thr_arg)
618{ 704{
619 aio_req req; 705 aio_req req;
620 int type; 706 int type;
621 707
622 do 708 do
… …
641 727
642 pthread_mutex_unlock (&reqlock); 728 pthread_mutex_unlock (&reqlock);
643 729
644 errno = 0; /* strictly unnecessary */ 730 errno = 0; /* strictly unnecessary */
645 731
646 type = req->type; 732 if (!req->cancelled)
647
648 switch (type) 733 switch (req->type)
649 { 734 {
650 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 735 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
651 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 736 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
652 737
653 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 738 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
654 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 739 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
655 740
656 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 741 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
657 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 742 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
658 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 743 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
659 744
660 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 745 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
661 case REQ_CLOSE: req->result = close (req->fd); break; 746 case REQ_CLOSE: req->result = close (req->fd); break;
662 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 747 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
663 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 748 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
749 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
750 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
664 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 751 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
665 752
666 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 753 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
667 case REQ_FSYNC: req->result = fsync (req->fd); break; 754 case REQ_FSYNC: req->result = fsync (req->fd); break;
668 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 755 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
669 756
757 case REQ_SLEEP:
758 {
759 struct timeval tv;
760
761 tv.tv_sec = req->fd;
762 tv.tv_usec = req->fd2;
763
764 req->result = select (0, 0, 0, 0, &tv);
765 }
766
670 case REQ_QUIT: 767 case REQ_QUIT:
671 break; 768 break;
672 769
673 default: 770 default:
674 req->result = ENOSYS; 771 req->result = ENOSYS;
675 break; 772 break;
676 } 773 }
677 774
678 req->errorno = errno; 775 req->errorno = errno;
679 776
680 pthread_mutex_lock (&reslock); 777 pthread_mutex_lock (&reslock);
681 778
… …
735 832
736 while (reqs) 833 while (reqs)
737 { 834 {
738 prv = reqs; 835 prv = reqs;
739 reqs = prv->next; 836 reqs = prv->next;
740 free_req (prv); 837 req_free (prv);
741 } 838 }
742 839
743 reqs = reqe = 0; 840 reqs = reqe = 0;
744 841
745 while (ress) 842 while (ress)
746 { 843 {
747 prv = ress; 844 prv = ress;
748 ress = prv->next; 845 ress = prv->next;
749 free_req (prv); 846 req_free (prv);
750 } 847 }
751 848
752 ress = rese = 0; 849 ress = rese = 0;
753 850
754 close (respipe [0]); 851 close (respipe [0]);
… …
760 857
761#define dREQ \ 858#define dREQ \
762 aio_req req; \ 859 aio_req req; \
763 \ 860 \
764 if (SvOK (callback) && !SvROK (callback)) \ 861 if (SvOK (callback) && !SvROK (callback)) \
765 croak ("clalback must be undef or of reference type"); \ 862 croak ("callback must be undef or of reference type"); \
766 \ 863 \
767 Newz (0, req, 1, aio_cb); \ 864 Newz (0, req, 1, aio_cb); \
768 if (!req) \ 865 if (!req) \
769 croak ("out of memory during aio_req allocation"); \ 866 croak ("out of memory during aio_req allocation"); \
770 \ 867 \
771 req->callback = newSVsv (callback); 868 req->callback = newSVsv (callback)
869
870#define REQ_SEND \
871 req_send (req); \
872 \
873 if (GIMME_V != G_VOID) \
874 XPUSHs (req_sv (req, AIO_REQ_KLASS));
772 875
773MODULE = IO::AIO PACKAGE = IO::AIO 876MODULE = IO::AIO PACKAGE = IO::AIO
774 877
775PROTOTYPES: ENABLE 878PROTOTYPES: ENABLE
776 879
777BOOT: 880BOOT:
778{ 881{
882 HV *stash = gv_stashpv ("IO::AIO", 1);
883 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
884 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
885 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
886
779 create_pipe (); 887 create_pipe ();
780 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 888 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
781} 889}
782 890
783void 891void
784min_parallel(nthreads) 892min_parallel (nthreads)
785 int nthreads 893 int nthreads
786 PROTOTYPE: $ 894 PROTOTYPE: $
787 895
788void 896void
789max_parallel(nthreads) 897max_parallel (nthreads)
790 int nthreads 898 int nthreads
791 PROTOTYPE: $ 899 PROTOTYPE: $
792 900
793int 901int
794max_outstanding(nreqs) 902max_outstanding (nreqs)
795 int nreqs 903 int nreqs
796 PROTOTYPE: $ 904 PROTOTYPE: $
797 CODE: 905 CODE:
798 RETVAL = max_outstanding; 906 RETVAL = max_outstanding;
799 max_outstanding = nreqs; 907 max_outstanding = nreqs;
800 908
801void 909void
802aio_open(pathname,flags,mode,callback=&PL_sv_undef) 910aio_open (pathname,flags,mode,callback=&PL_sv_undef)
803 SV * pathname 911 SV * pathname
804 int flags 912 int flags
805 int mode 913 int mode
806 SV * callback 914 SV * callback
807 PROTOTYPE: $$$;$ 915 PROTOTYPE: $$$;$
808 CODE: 916 PPCODE:
809{ 917{
810 dREQ; 918 dREQ;
811 919
812 req->type = REQ_OPEN; 920 req->type = REQ_OPEN;
813 req->data = newSVsv (pathname); 921 req->data = newSVsv (pathname);
814 req->dataptr = SvPVbyte_nolen (req->data); 922 req->dataptr = SvPVbyte_nolen (req->data);
815 req->fd = flags; 923 req->fd = flags;
816 req->mode = mode; 924 req->mode = mode;
817 925
818 send_req (req); 926 REQ_SEND;
819} 927}
820 928
821void 929void
822aio_close(fh,callback=&PL_sv_undef) 930aio_close (fh,callback=&PL_sv_undef)
823 SV * fh 931 SV * fh
824 SV * callback 932 SV * callback
825 PROTOTYPE: $;$ 933 PROTOTYPE: $;$
826 ALIAS: 934 ALIAS:
827 aio_close = REQ_CLOSE 935 aio_close = REQ_CLOSE
828 aio_fsync = REQ_FSYNC 936 aio_fsync = REQ_FSYNC
829 aio_fdatasync = REQ_FDATASYNC 937 aio_fdatasync = REQ_FDATASYNC
830 CODE: 938 PPCODE:
831{ 939{
832 dREQ; 940 dREQ;
833 941
834 req->type = ix; 942 req->type = ix;
835 req->fh = newSVsv (fh); 943 req->fh = newSVsv (fh);
836 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 944 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
837 945
838 send_req (req); 946 REQ_SEND (req);
839} 947}
840 948
841void 949void
842aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 950aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
843 SV * fh 951 SV * fh
844 UV offset 952 UV offset
845 UV length 953 UV length
846 SV * data 954 SV * data
847 UV dataoffset 955 UV dataoffset
848 SV * callback 956 SV * callback
849 ALIAS: 957 ALIAS:
850 aio_read = REQ_READ 958 aio_read = REQ_READ
851 aio_write = REQ_WRITE 959 aio_write = REQ_WRITE
852 PROTOTYPE: $$$$$;$ 960 PROTOTYPE: $$$$$;$
853 CODE: 961 PPCODE:
854{ 962{
855 aio_req req; 963 aio_req req;
856 STRLEN svlen; 964 STRLEN svlen;
857 char *svptr = SvPVbyte (data, svlen); 965 char *svptr = SvPVbyte (data, svlen);
858 966
… …
896 { 1004 {
897 SvREADONLY_on (data); 1005 SvREADONLY_on (data);
898 req->data2ptr = (void *)data; 1006 req->data2ptr = (void *)data;
899 } 1007 }
900 1008
901 send_req (req); 1009 REQ_SEND;
902 } 1010 }
903} 1011}
904 1012
905void 1013void
906aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1014aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
907 SV * out_fh 1015 SV * out_fh
908 SV * in_fh 1016 SV * in_fh
909 UV in_offset 1017 UV in_offset
910 UV length 1018 UV length
911 SV * callback 1019 SV * callback
912 PROTOTYPE: $$$$;$ 1020 PROTOTYPE: $$$$;$
913 CODE: 1021 PPCODE:
914{ 1022{
915 dREQ; 1023 dREQ;
916 1024
917 req->type = REQ_SENDFILE; 1025 req->type = REQ_SENDFILE;
918 req->fh = newSVsv (out_fh); 1026 req->fh = newSVsv (out_fh);
… …
920 req->fh2 = newSVsv (in_fh); 1028 req->fh2 = newSVsv (in_fh);
921 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1029 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
922 req->offset = in_offset; 1030 req->offset = in_offset;
923 req->length = length; 1031 req->length = length;
924 1032
925 send_req (req); 1033 REQ_SEND;
926} 1034}
927 1035
928void 1036void
929aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1037aio_readahead (fh,offset,length,callback=&PL_sv_undef)
930 SV * fh 1038 SV * fh
931 UV offset 1039 UV offset
932 IV length 1040 IV length
933 SV * callback 1041 SV * callback
934 PROTOTYPE: $$$;$ 1042 PROTOTYPE: $$$;$
935 CODE: 1043 PPCODE:
936{ 1044{
937 dREQ; 1045 dREQ;
938 1046
939 req->type = REQ_READAHEAD; 1047 req->type = REQ_READAHEAD;
940 req->fh = newSVsv (fh); 1048 req->fh = newSVsv (fh);
941 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1049 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
942 req->offset = offset; 1050 req->offset = offset;
943 req->length = length; 1051 req->length = length;
944 1052
945 send_req (req); 1053 REQ_SEND;
946} 1054}
947 1055
948void 1056void
949aio_stat(fh_or_path,callback=&PL_sv_undef) 1057aio_stat (fh_or_path,callback=&PL_sv_undef)
950 SV * fh_or_path 1058 SV * fh_or_path
951 SV * callback 1059 SV * callback
952 ALIAS: 1060 ALIAS:
953 aio_stat = REQ_STAT 1061 aio_stat = REQ_STAT
954 aio_lstat = REQ_LSTAT 1062 aio_lstat = REQ_LSTAT
955 CODE: 1063 PPCODE:
956{ 1064{
957 dREQ; 1065 dREQ;
958 1066
959 New (0, req->statdata, 1, Stat_t); 1067 New (0, req->statdata, 1, Stat_t);
960 if (!req->statdata) 1068 if (!req->statdata)
961 { 1069 {
962 free_req (req); 1070 req_free (req);
963 croak ("out of memory during aio_req->statdata allocation"); 1071 croak ("out of memory during aio_req->statdata allocation");
964 } 1072 }
965 1073
966 if (SvPOK (fh_or_path)) 1074 if (SvPOK (fh_or_path))
967 { 1075 {
… …
974 req->type = REQ_FSTAT; 1082 req->type = REQ_FSTAT;
975 req->fh = newSVsv (fh_or_path); 1083 req->fh = newSVsv (fh_or_path);
976 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
977 } 1085 }
978 1086
979 send_req (req); 1087 REQ_SEND;
980} 1088}
981 1089
982void 1090void
983aio_unlink(pathname,callback=&PL_sv_undef) 1091aio_unlink (pathname,callback=&PL_sv_undef)
984 SV * pathname 1092 SV * pathname
985 SV * callback 1093 SV * callback
986 ALIAS: 1094 ALIAS:
987 aio_unlink = REQ_UNLINK 1095 aio_unlink = REQ_UNLINK
988 aio_rmdir = REQ_RMDIR 1096 aio_rmdir = REQ_RMDIR
1097 aio_readdir = REQ_READDIR
989 CODE: 1098 PPCODE:
990{ 1099{
991 dREQ; 1100 dREQ;
992 1101
993 req->type = ix; 1102 req->type = ix;
994 req->data = newSVsv (pathname); 1103 req->data = newSVsv (pathname);
995 req->dataptr = SvPVbyte_nolen (req->data); 1104 req->dataptr = SvPVbyte_nolen (req->data);
996 1105
997 send_req (req); 1106 REQ_SEND;
998} 1107}
999 1108
1000void 1109void
1001aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1110aio_link (oldpath,newpath,callback=&PL_sv_undef)
1002 SV * oldpath 1111 SV * oldpath
1003 SV * newpath 1112 SV * newpath
1004 SV * callback 1113 SV * callback
1114 ALIAS:
1115 aio_link = REQ_LINK
1116 aio_symlink = REQ_SYMLINK
1117 aio_rename = REQ_RENAME
1005 CODE: 1118 PPCODE:
1006{ 1119{
1007 dREQ; 1120 dREQ;
1008 1121
1009 req->type = REQ_SYMLINK; 1122 req->type = ix;
1010 req->fh = newSVsv (oldpath); 1123 req->fh = newSVsv (oldpath);
1011 req->data2ptr = SvPVbyte_nolen (req->fh); 1124 req->data2ptr = SvPVbyte_nolen (req->fh);
1012 req->data = newSVsv (newpath); 1125 req->data = newSVsv (newpath);
1013 req->dataptr = SvPVbyte_nolen (req->data); 1126 req->dataptr = SvPVbyte_nolen (req->data);
1014 1127
1015 send_req (req); 1128 REQ_SEND;
1016} 1129}
1017 1130
1018void 1131void
1019aio_readdir(pathname,callback=&PL_sv_undef) 1132aio_sleep (delay,callback=&PL_sv_undef)
1020 SV * pathname 1133 double delay
1021 SV * callback 1134 SV * callback
1022 CODE: 1135 PPCODE:
1023{ 1136{
1024 dREQ; 1137 dREQ;
1025 1138
1026 req->type = REQ_READDIR; 1139 req->type = REQ_SLEEP;
1027 req->data = newSVsv (pathname); 1140 req->fd = delay < 0. ? 0 : delay;
1028 req->dataptr = SvPVbyte_nolen (req->data); 1141 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1029
1030 send_req (req);
1031}
1032 1142
1143 REQ_SEND;
1144}
1145
1033void 1146void
1147aio_group (callback=&PL_sv_undef)
1148 SV * callback
1149 PROTOTYPE: ;$
1150 PPCODE:
1151{
1152 dREQ;
1153 req->type = REQ_GROUP;
1154 req->grp_next = req;
1155 req->grp_prev = req;
1156
1157 req_send (req);
1158 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1159}
1160
1161void
1034flush() 1162flush ()
1035 PROTOTYPE: 1163 PROTOTYPE:
1036 CODE: 1164 CODE:
1037 while (nreqs) 1165 while (nreqs)
1038 { 1166 {
1039 poll_wait (); 1167 poll_wait ();
… …
1079 CODE: 1207 CODE:
1080 RETVAL = nreqs; 1208 RETVAL = nreqs;
1081 OUTPUT: 1209 OUTPUT:
1082 RETVAL 1210 RETVAL
1083 1211
1212MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1213
1214void
1215cancel (aio_req_ornot req)
1216 PROTOTYPE:
1217 CODE:
1218 req_cancel (req);
1219
1220MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1221
1222void
1223add (aio_req grp, ...)
1224 PROTOTYPE: $;@
1225 PPCODE:
1226{
1227 int i;
1228
1229 for (i = 1; i < items; ++i )
1230 {
1231 if (GIMME_V != G_VOID)
1232 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1233
1234 aio_req req = SvAIO_REQ (ST (i));
1235
1236 if (req)
1237 {
1238 req->grp_prev = grp;
1239 req->grp_next = grp->grp_next;
1240 grp->grp_next->grp_prev = req;
1241 grp->grp_next = req;
1242
1243 req->grp = grp;
1244 }
1245 }
1246}
1247

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