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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC vs.
Revision 1.47 by root, Sun Oct 22 10:10:23 2006 UTC

… …
9 9
10#include <pthread.h> 10#include <pthread.h>
11 11
12#include <stddef.h> 12#include <stddef.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
14#include <sys/types.h> 16#include <sys/types.h>
15#include <sys/stat.h> 17#include <sys/stat.h>
16#include <limits.h> 18#include <limits.h>
17#include <unistd.h> 19#include <unistd.h>
18#include <fcntl.h> 20#include <fcntl.h>
… …
53 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 55 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54 REQ_FSYNC, REQ_FDATASYNC, 56 REQ_FSYNC, REQ_FDATASYNC,
55 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56 REQ_READDIR, 58 REQ_READDIR,
57 REQ_LINK, REQ_SYMLINK, 59 REQ_LINK, REQ_SYMLINK,
60 REQ_SLEEP,
61 REQ_GROUP,
58}; 62};
59 63
64#define AIO_REQ_KLASS "IO::AIO::REQ"
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66
60typedef struct aio_cb { 67typedef struct aio_cb
68{
69 struct aio_cb *grp, *grp_prev, *grp_next;
70
61 struct aio_cb *volatile next; 71 struct aio_cb *volatile next;
62 72
63 int type; 73 SV *self; /* the perl counterpart of this request, if any */
64 74
65 /* should receive a cleanup, with unions */ 75 SV *data, *callback;
66 int fd, fd2; 76 SV *fh, *fh2;
77 void *dataptr, *data2ptr;
78 Stat_t *statdata;
67 off_t offset; 79 off_t offset;
68 size_t length; 80 size_t length;
69 ssize_t result; 81 ssize_t result;
82
83 int type;
84 int fd, fd2;
85 int errorno;
86 STRLEN dataoffset;
70 mode_t mode; /* open */ 87 mode_t mode; /* open */
71 int errorno; 88 unsigned char cancelled;
72 SV *data, *callback;
73 SV *fh, *fh2;
74 void *dataptr, *data2ptr;
75 STRLEN dataoffset;
76
77 Stat_t *statdata;
78} aio_cb; 89} aio_cb;
79 90
80typedef aio_cb *aio_req; 91typedef aio_cb *aio_req;
92typedef aio_cb *aio_req_ornot;
81 93
82static int started, wanted; 94static int started, wanted;
83static volatile int nreqs; 95static volatile int nreqs;
84static int max_outstanding = 1<<30; 96static int max_outstanding = 1<<30;
85static int respipe [2]; 97static int respipe [2];
… …
89static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
90 102
91static volatile aio_req reqs, reqe; /* queue start, queue end */ 103static volatile aio_req reqs, reqe; /* queue start, queue end */
92static volatile aio_req ress, rese; /* queue start, queue end */ 104static volatile aio_req ress, rese; /* queue start, queue end */
93 105
94static void free_req (aio_req req) 106static void req_free (aio_req req);
95{
96 if (req->data)
97 SvREFCNT_dec (req->data);
98 107
99 if (req->fh) 108/* must be called at most once */
100 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);
101 113
102 if (req->fh2) 114 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
103 SvREFCNT_dec (req->fh2);
104
105 if (req->statdata)
106 Safefree (req->statdata);
107
108 if (req->callback)
109 SvREFCNT_dec (req->callback);
110
111 if (req->type == REQ_READDIR && req->result >= 0)
112 free (req->data2ptr);
113
114 Safefree (req);
115} 115}
116 116
117static void 117static aio_req SvAIO_REQ (SV *sv)
118poll_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 ()
119{ 128{
120 if (nreqs && !ress) 129 if (nreqs && !ress)
121 { 130 {
122 fd_set rfd; 131 fd_set rfd;
123 FD_ZERO(&rfd); 132 FD_ZERO(&rfd);
… …
125 134
126 select (respipe [0] + 1, &rfd, 0, 0, 0); 135 select (respipe [0] + 1, &rfd, 0, 0, 0);
127 } 136 }
128} 137}
129 138
130static int 139static void req_invoke (aio_req req)
131poll_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 ()
132{ 279{
133 dSP; 280 dSP;
134 int count = 0; 281 int count = 0;
135 int do_croak = 0; 282 int do_croak = 0;
136 aio_req req; 283 aio_req req;
… …
162 309
163 nreqs--; 310 nreqs--;
164 311
165 if (req->type == REQ_QUIT) 312 if (req->type == REQ_QUIT)
166 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 }
167 else 319 else
168 { 320 {
169 int errorno = errno;
170 errno = req->errorno;
171
172 if (req->type == REQ_READ) 321 if (req->type == REQ_READ)
173 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));
174 323
175 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) 324 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
176 SvREADONLY_off (req->data); 325 SvREADONLY_off (req->data);
… …
180 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 329 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
181 PL_laststatval = req->result; 330 PL_laststatval = req->result;
182 PL_statcache = *(req->statdata); 331 PL_statcache = *(req->statdata);
183 } 332 }
184 333
185 ENTER; 334 req_invoke (req);
186 PUSHMARK (SP);
187 335
188 if (req->type == REQ_READDIR)
189 {
190 SV *rv = &PL_sv_undef;
191
192 if (req->result >= 0)
193 {
194 char *buf = req->data2ptr;
195 AV *av = newAV ();
196
197 while (req->result)
198 {
199 SV *sv = newSVpv (buf, 0);
200
201 av_push (av, sv);
202 buf += SvCUR (sv) + 1;
203 req->result--;
204 }
205
206 rv = sv_2mortal (newRV_noinc ((SV *)av));
207 }
208
209 XPUSHs (rv);
210 }
211 else
212 {
213 XPUSHs (sv_2mortal (newSViv (req->result)));
214
215 if (req->type == REQ_OPEN)
216 {
217 /* convert fd to fh */
218 SV *fh;
219
220 PUTBACK;
221 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
222 SPAGAIN;
223
224 fh = SvREFCNT_inc (POPs);
225
226 PUSHMARK (SP);
227 XPUSHs (sv_2mortal (fh));
228 }
229 }
230
231 if (SvOK (req->callback))
232 {
233 PUTBACK;
234 call_sv (req->callback, G_VOID | G_EVAL);
235 SPAGAIN;
236
237 if (SvTRUE (ERRSV))
238 {
239 free_req (req);
240 croak (0);
241 }
242 }
243
244 LEAVE;
245
246 errno = errorno;
247 count++; 336 count++;
248 } 337 }
249 338
250 free_req (req); 339 req_free (req);
251 } 340 }
252 341
253 return count; 342 return count;
254} 343}
255 344
256static void *aio_proc(void *arg); 345static void *aio_proc(void *arg);
257 346
258static void
259start_thread (void) 347static void start_thread (void)
260{ 348{
261 sigset_t fullsigset, oldsigset; 349 sigset_t fullsigset, oldsigset;
262 pthread_t tid; 350 pthread_t tid;
263 pthread_attr_t attr; 351 pthread_attr_t attr;
264 352
… …
273 started++; 361 started++;
274 362
275 sigprocmask (SIG_SETMASK, &oldsigset, 0); 363 sigprocmask (SIG_SETMASK, &oldsigset, 0);
276} 364}
277 365
278static void 366static void req_send (aio_req req)
279send_req (aio_req req)
280{ 367{
281 while (started < wanted && nreqs >= started) 368 while (started < wanted && nreqs >= started)
282 start_thread (); 369 start_thread ();
283 370
284 nreqs++; 371 nreqs++;
… …
308 395
309 poll_wait (); 396 poll_wait ();
310 } 397 }
311} 398}
312 399
313static void 400static void end_thread (void)
314end_thread (void)
315{ 401{
316 aio_req req; 402 aio_req req;
317 Newz (0, req, 1, aio_cb); 403 Newz (0, req, 1, aio_cb);
318 req->type = REQ_QUIT; 404 req->type = REQ_QUIT;
319 405
320 send_req (req); 406 req_send (req);
321} 407}
322 408
323static void min_parallel (int nthreads) 409static void min_parallel (int nthreads)
324{ 410{
325 if (wanted < nthreads) 411 if (wanted < nthreads)
… …
370 * 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,
371 * but that's your problem, not mine. 457 * but that's your problem, not mine.
372 */ 458 */
373static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 459static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
374 460
375static ssize_t 461static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
376pread (int fd, void *buf, size_t count, off_t offset)
377{ 462{
378 ssize_t res; 463 ssize_t res;
379 off_t ooffset; 464 off_t ooffset;
380 465
381 pthread_mutex_lock (&preadwritelock); 466 pthread_mutex_lock (&preadwritelock);
… …
386 pthread_mutex_unlock (&preadwritelock); 471 pthread_mutex_unlock (&preadwritelock);
387 472
388 return res; 473 return res;
389} 474}
390 475
391static ssize_t
392pwrite (int fd, void *buf, size_t count, off_t offset) 476static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
393{ 477{
394 ssize_t res; 478 ssize_t res;
395 off_t ooffset; 479 off_t ooffset;
396 480
397 pthread_mutex_lock (&preadwritelock); 481 pthread_mutex_lock (&preadwritelock);
… …
410#endif 494#endif
411 495
412#if !HAVE_READAHEAD 496#if !HAVE_READAHEAD
413# define readahead aio_readahead 497# define readahead aio_readahead
414 498
415static ssize_t
416readahead (int fd, off_t offset, size_t count) 499static ssize_t readahead (int fd, off_t offset, size_t count)
417{ 500{
418 char readahead_buf[4096]; 501 char readahead_buf[4096];
419 502
420 while (count > 0) 503 while (count > 0)
421 { 504 {
… …
433#if !HAVE_READDIR_R 516#if !HAVE_READDIR_R
434# define readdir_r aio_readdir_r 517# define readdir_r aio_readdir_r
435 518
436static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 519static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437 520
438static int
439readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 521static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
440{ 522{
441 struct dirent *e; 523 struct dirent *e;
442 int errorno; 524 int errorno;
443 525
444 pthread_mutex_lock (&readdirlock); 526 pthread_mutex_lock (&readdirlock);
… …
460 return e ? 0 : -1; 542 return e ? 0 : -1;
461} 543}
462#endif 544#endif
463 545
464/* sendfile always needs emulation */ 546/* sendfile always needs emulation */
465static ssize_t
466sendfile_ (int ofd, int ifd, off_t offset, size_t count) 547static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
467{ 548{
468 ssize_t res; 549 ssize_t res;
469 550
470 if (!count) 551 if (!count)
471 return 0; 552 return 0;
… …
553 634
554 return res; 635 return res;
555} 636}
556 637
557/* read a full directory */ 638/* read a full directory */
558static int
559scandir_ (const char *path, void **namesp) 639static int scandir_ (const char *path, void **namesp)
560{ 640{
561 DIR *dirp = opendir (path); 641 DIR *dirp = opendir (path);
562 union 642 union
563 { 643 {
564 struct dirent d; 644 struct dirent d;
… …
618 return res; 698 return res;
619} 699}
620 700
621/*****************************************************************************/ 701/*****************************************************************************/
622 702
623static void *
624aio_proc (void *thr_arg) 703static void *aio_proc (void *thr_arg)
625{ 704{
626 aio_req req; 705 aio_req req;
627 int type; 706 int type;
628 707
629 do 708 do
… …
648 727
649 pthread_mutex_unlock (&reqlock); 728 pthread_mutex_unlock (&reqlock);
650 729
651 errno = 0; /* strictly unnecessary */ 730 errno = 0; /* strictly unnecessary */
652 731
653 type = req->type; 732 if (!req->cancelled)
654
655 switch (type) 733 switch (req->type)
656 { 734 {
657 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;
658 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;
659 737
660 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;
661 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;
662 740
663 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 741 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
664 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 742 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
665 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 743 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
666 744
667 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;
668 case REQ_CLOSE: req->result = close (req->fd); break; 746 case REQ_CLOSE: req->result = close (req->fd); break;
669 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 747 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
670 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 748 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; 749 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; 750 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
673 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 751 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
674 752
675 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 753 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
676 case REQ_FSYNC: req->result = fsync (req->fd); break; 754 case REQ_FSYNC: req->result = fsync (req->fd); break;
677 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 755 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
678 756
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
679 case REQ_QUIT: 767 case REQ_QUIT:
680 break; 768 break;
681 769
682 default: 770 default:
683 req->result = ENOSYS; 771 req->result = ENOSYS;
684 break; 772 break;
685 } 773 }
686 774
687 req->errorno = errno; 775 req->errorno = errno;
688 776
689 pthread_mutex_lock (&reslock); 777 pthread_mutex_lock (&reslock);
690 778
… …
744 832
745 while (reqs) 833 while (reqs)
746 { 834 {
747 prv = reqs; 835 prv = reqs;
748 reqs = prv->next; 836 reqs = prv->next;
749 free_req (prv); 837 req_free (prv);
750 } 838 }
751 839
752 reqs = reqe = 0; 840 reqs = reqe = 0;
753 841
754 while (ress) 842 while (ress)
755 { 843 {
756 prv = ress; 844 prv = ress;
757 ress = prv->next; 845 ress = prv->next;
758 free_req (prv); 846 req_free (prv);
759 } 847 }
760 848
761 ress = rese = 0; 849 ress = rese = 0;
762 850
763 close (respipe [0]); 851 close (respipe [0]);
… …
769 857
770#define dREQ \ 858#define dREQ \
771 aio_req req; \ 859 aio_req req; \
772 \ 860 \
773 if (SvOK (callback) && !SvROK (callback)) \ 861 if (SvOK (callback) && !SvROK (callback)) \
774 croak ("clalback must be undef or of reference type"); \ 862 croak ("callback must be undef or of reference type"); \
775 \ 863 \
776 Newz (0, req, 1, aio_cb); \ 864 Newz (0, req, 1, aio_cb); \
777 if (!req) \ 865 if (!req) \
778 croak ("out of memory during aio_req allocation"); \ 866 croak ("out of memory during aio_req allocation"); \
779 \ 867 \
780 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));
781 875
782MODULE = IO::AIO PACKAGE = IO::AIO 876MODULE = IO::AIO PACKAGE = IO::AIO
783 877
784PROTOTYPES: ENABLE 878PROTOTYPES: ENABLE
785 879
… …
817 SV * pathname 911 SV * pathname
818 int flags 912 int flags
819 int mode 913 int mode
820 SV * callback 914 SV * callback
821 PROTOTYPE: $$$;$ 915 PROTOTYPE: $$$;$
822 CODE: 916 PPCODE:
823{ 917{
824 dREQ; 918 dREQ;
825 919
826 req->type = REQ_OPEN; 920 req->type = REQ_OPEN;
827 req->data = newSVsv (pathname); 921 req->data = newSVsv (pathname);
828 req->dataptr = SvPVbyte_nolen (req->data); 922 req->dataptr = SvPVbyte_nolen (req->data);
829 req->fd = flags; 923 req->fd = flags;
830 req->mode = mode; 924 req->mode = mode;
831 925
832 send_req (req); 926 REQ_SEND;
833} 927}
834 928
835void 929void
836aio_close (fh,callback=&PL_sv_undef) 930aio_close (fh,callback=&PL_sv_undef)
837 SV * fh 931 SV * fh
… …
839 PROTOTYPE: $;$ 933 PROTOTYPE: $;$
840 ALIAS: 934 ALIAS:
841 aio_close = REQ_CLOSE 935 aio_close = REQ_CLOSE
842 aio_fsync = REQ_FSYNC 936 aio_fsync = REQ_FSYNC
843 aio_fdatasync = REQ_FDATASYNC 937 aio_fdatasync = REQ_FDATASYNC
844 CODE: 938 PPCODE:
845{ 939{
846 dREQ; 940 dREQ;
847 941
848 req->type = ix; 942 req->type = ix;
849 req->fh = newSVsv (fh); 943 req->fh = newSVsv (fh);
850 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 944 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
851 945
852 send_req (req); 946 REQ_SEND (req);
853} 947}
854 948
855void 949void
856aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 950aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
857 SV * fh 951 SV * fh
… …
862 SV * callback 956 SV * callback
863 ALIAS: 957 ALIAS:
864 aio_read = REQ_READ 958 aio_read = REQ_READ
865 aio_write = REQ_WRITE 959 aio_write = REQ_WRITE
866 PROTOTYPE: $$$$$;$ 960 PROTOTYPE: $$$$$;$
867 CODE: 961 PPCODE:
868{ 962{
869 aio_req req; 963 aio_req req;
870 STRLEN svlen; 964 STRLEN svlen;
871 char *svptr = SvPVbyte (data, svlen); 965 char *svptr = SvPVbyte (data, svlen);
872 966
… …
910 { 1004 {
911 SvREADONLY_on (data); 1005 SvREADONLY_on (data);
912 req->data2ptr = (void *)data; 1006 req->data2ptr = (void *)data;
913 } 1007 }
914 1008
915 send_req (req); 1009 REQ_SEND;
916 } 1010 }
917} 1011}
918 1012
919void 1013void
920aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1014aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
… …
922 SV * in_fh 1016 SV * in_fh
923 UV in_offset 1017 UV in_offset
924 UV length 1018 UV length
925 SV * callback 1019 SV * callback
926 PROTOTYPE: $$$$;$ 1020 PROTOTYPE: $$$$;$
927 CODE: 1021 PPCODE:
928{ 1022{
929 dREQ; 1023 dREQ;
930 1024
931 req->type = REQ_SENDFILE; 1025 req->type = REQ_SENDFILE;
932 req->fh = newSVsv (out_fh); 1026 req->fh = newSVsv (out_fh);
… …
934 req->fh2 = newSVsv (in_fh); 1028 req->fh2 = newSVsv (in_fh);
935 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1029 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
936 req->offset = in_offset; 1030 req->offset = in_offset;
937 req->length = length; 1031 req->length = length;
938 1032
939 send_req (req); 1033 REQ_SEND;
940} 1034}
941 1035
942void 1036void
943aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1037aio_readahead (fh,offset,length,callback=&PL_sv_undef)
944 SV * fh 1038 SV * fh
945 UV offset 1039 UV offset
946 IV length 1040 IV length
947 SV * callback 1041 SV * callback
948 PROTOTYPE: $$$;$ 1042 PROTOTYPE: $$$;$
949 CODE: 1043 PPCODE:
950{ 1044{
951 dREQ; 1045 dREQ;
952 1046
953 req->type = REQ_READAHEAD; 1047 req->type = REQ_READAHEAD;
954 req->fh = newSVsv (fh); 1048 req->fh = newSVsv (fh);
955 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1049 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
956 req->offset = offset; 1050 req->offset = offset;
957 req->length = length; 1051 req->length = length;
958 1052
959 send_req (req); 1053 REQ_SEND;
960} 1054}
961 1055
962void 1056void
963aio_stat (fh_or_path,callback=&PL_sv_undef) 1057aio_stat (fh_or_path,callback=&PL_sv_undef)
964 SV * fh_or_path 1058 SV * fh_or_path
965 SV * callback 1059 SV * callback
966 ALIAS: 1060 ALIAS:
967 aio_stat = REQ_STAT 1061 aio_stat = REQ_STAT
968 aio_lstat = REQ_LSTAT 1062 aio_lstat = REQ_LSTAT
969 CODE: 1063 PPCODE:
970{ 1064{
971 dREQ; 1065 dREQ;
972 1066
973 New (0, req->statdata, 1, Stat_t); 1067 New (0, req->statdata, 1, Stat_t);
974 if (!req->statdata) 1068 if (!req->statdata)
975 { 1069 {
976 free_req (req); 1070 req_free (req);
977 croak ("out of memory during aio_req->statdata allocation"); 1071 croak ("out of memory during aio_req->statdata allocation");
978 } 1072 }
979 1073
980 if (SvPOK (fh_or_path)) 1074 if (SvPOK (fh_or_path))
981 { 1075 {
… …
988 req->type = REQ_FSTAT; 1082 req->type = REQ_FSTAT;
989 req->fh = newSVsv (fh_or_path); 1083 req->fh = newSVsv (fh_or_path);
990 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
991 } 1085 }
992 1086
993 send_req (req); 1087 REQ_SEND;
994} 1088}
995 1089
996void 1090void
997aio_unlink (pathname,callback=&PL_sv_undef) 1091aio_unlink (pathname,callback=&PL_sv_undef)
998 SV * pathname 1092 SV * pathname
999 SV * callback 1093 SV * callback
1000 ALIAS: 1094 ALIAS:
1001 aio_unlink = REQ_UNLINK 1095 aio_unlink = REQ_UNLINK
1002 aio_rmdir = REQ_RMDIR 1096 aio_rmdir = REQ_RMDIR
1003 aio_readdir = REQ_READDIR 1097 aio_readdir = REQ_READDIR
1004 CODE: 1098 PPCODE:
1005{ 1099{
1006 dREQ; 1100 dREQ;
1007 1101
1008 req->type = ix; 1102 req->type = ix;
1009 req->data = newSVsv (pathname); 1103 req->data = newSVsv (pathname);
1010 req->dataptr = SvPVbyte_nolen (req->data); 1104 req->dataptr = SvPVbyte_nolen (req->data);
1011 1105
1012 send_req (req); 1106 REQ_SEND;
1013} 1107}
1014 1108
1015void 1109void
1016aio_link (oldpath,newpath,callback=&PL_sv_undef) 1110aio_link (oldpath,newpath,callback=&PL_sv_undef)
1017 SV * oldpath 1111 SV * oldpath
… …
1019 SV * callback 1113 SV * callback
1020 ALIAS: 1114 ALIAS:
1021 aio_link = REQ_LINK 1115 aio_link = REQ_LINK
1022 aio_symlink = REQ_SYMLINK 1116 aio_symlink = REQ_SYMLINK
1023 aio_rename = REQ_RENAME 1117 aio_rename = REQ_RENAME
1024 CODE: 1118 PPCODE:
1025{ 1119{
1026 dREQ; 1120 dREQ;
1027 1121
1028 req->type = ix; 1122 req->type = ix;
1029 req->fh = newSVsv (oldpath); 1123 req->fh = newSVsv (oldpath);
1030 req->data2ptr = SvPVbyte_nolen (req->fh); 1124 req->data2ptr = SvPVbyte_nolen (req->fh);
1031 req->data = newSVsv (newpath); 1125 req->data = newSVsv (newpath);
1032 req->dataptr = SvPVbyte_nolen (req->data); 1126 req->dataptr = SvPVbyte_nolen (req->data);
1033 1127
1034 send_req (req); 1128 REQ_SEND;
1035} 1129}
1036 1130
1037#if 0
1038
1039# undocumented, because it does not cancel active requests
1040void 1131void
1041cancel_most_requests () 1132aio_sleep (delay,callback=&PL_sv_undef)
1133 double delay
1134 SV * callback
1135 PPCODE:
1136{
1137 dREQ;
1138
1139 req->type = REQ_SLEEP;
1140 req->fd = delay < 0. ? 0 : delay;
1141 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1142
1143 REQ_SEND;
1144}
1145
1146void
1147aio_group (callback=&PL_sv_undef)
1148 SV * callback
1042 PROTOTYPE: 1149 PROTOTYPE: ;$
1043 CODE: 1150 PPCODE:
1044{ 1151{
1045 aio_req *req; 1152 dREQ;
1153 req->type = REQ_GROUP;
1154 req->grp_next = req;
1155 req->grp_prev = req;
1046 1156
1047 pthread_mutex_lock (&reqlock); 1157 req_send (req);
1048 for (req = reqs; req; req = req->next) 1158 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1049 req->flags |= 1;
1050 pthread_mutex_unlock (&reqlock);
1051
1052 pthread_mutex_lock (&reslock);
1053 for (req = ress; req; req = req->next)
1054 req->flags |= 1;
1055 pthread_mutex_unlock (&reslock);
1056} 1159}
1057
1058#endif
1059 1160
1060void 1161void
1061flush () 1162flush ()
1062 PROTOTYPE: 1163 PROTOTYPE:
1063 CODE: 1164 CODE:
… …
1106 CODE: 1207 CODE:
1107 RETVAL = nreqs; 1208 RETVAL = nreqs;
1108 OUTPUT: 1209 OUTPUT:
1109 RETVAL 1210 RETVAL
1110 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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