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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 1.48 by root, Sun Oct 22 10:33:19 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 EXTEND (SP, 1);
152
153 switch (req->type)
154 {
155 case REQ_READDIR:
156 {
157 SV *rv = &PL_sv_undef;
158
159 if (req->result >= 0)
160 {
161 char *buf = req->data2ptr;
162 AV *av = newAV ();
163
164 while (req->result)
165 {
166 SV *sv = newSVpv (buf, 0);
167
168 av_push (av, sv);
169 buf += SvCUR (sv) + 1;
170 req->result--;
171 }
172
173 rv = sv_2mortal (newRV_noinc ((SV *)av));
174 }
175
176 PUSHs (rv);
177 }
178 break;
179
180 case REQ_OPEN:
181 {
182 /* convert fd to fh */
183 SV *fh;
184
185 PUSHs (sv_2mortal (newSViv (req->result)));
186 PUTBACK;
187 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
188 SPAGAIN;
189
190 fh = SvREFCNT_inc (POPs);
191
192 PUSHMARK (SP);
193 XPUSHs (sv_2mortal (fh));
194 }
195 break;
196
197 case REQ_GROUP:
198 if (req->data)
199 {
200 int i;
201 AV *av = (AV *)req->data;
202
203 EXTEND (SP, AvFILL (av) + 1);
204 for (i = 0; i <= AvFILL (av); ++i)
205 PUSHs (*av_fetch (av, i, 0));
206 }
207 break;
208
209 case REQ_SLEEP:
210 break;
211
212 default:
213 PUSHs (sv_2mortal (newSViv (req->result)));
214 break;
215 }
216
217
218 PUTBACK;
219 call_sv (req->callback, G_VOID | G_EVAL);
220 SPAGAIN;
221
222 if (SvTRUE (ERRSV))
223 {
224 req_free (req);
225 croak (0);
226 }
227
228 LEAVE;
229
230 errno = errorno;
231}
232
233static void req_free (aio_req req)
234{
235 if (req->grp)
236 {
237 aio_req grp = req->grp;
238
239 /* unlink request */
240 req->grp_next->grp_prev = req->grp_prev;
241 req->grp_prev->grp_next = req->grp_next;
242
243 if (grp->grp_next == grp && grp->fd)
244 {
245 req_invoke (grp);
246 req_free (grp);
247 }
248 }
249
250 if (req->self)
251 {
252 sv_unmagic (req->self, PERL_MAGIC_ext);
253 SvREFCNT_dec (req->self);
254 }
255
256 if (req->data)
257 SvREFCNT_dec (req->data);
258
259 if (req->fh)
260 SvREFCNT_dec (req->fh);
261
262 if (req->fh2)
263 SvREFCNT_dec (req->fh2);
264
265 if (req->statdata)
266 Safefree (req->statdata);
267
268 if (req->callback)
269 SvREFCNT_dec (req->callback);
270
271 if (req->type == REQ_READDIR && req->result >= 0)
272 free (req->data2ptr);
273
274 Safefree (req);
275}
276
277static void req_cancel (aio_req req)
278{
279 req->cancelled = 1;
280
281 if (req->type == REQ_GROUP)
282 {
283 aio_req sub;
284
285 for (sub = req->grp_next; sub != req; sub = sub->grp_next)
286 req_cancel (sub);
287 }
288}
289
290static int poll_cb ()
132{ 291{
133 dSP; 292 dSP;
134 int count = 0; 293 int count = 0;
135 int do_croak = 0; 294 int do_croak = 0;
136 aio_req req; 295 aio_req req;
… …
162 321
163 nreqs--; 322 nreqs--;
164 323
165 if (req->type == REQ_QUIT) 324 if (req->type == REQ_QUIT)
166 started--; 325 started--;
326 else if (req->type == REQ_GROUP && req->grp_next != req)
327 {
328 req->fd = 1; /* mark request as delayed */
329 continue;
330 }
167 else 331 else
168 { 332 {
169 int errorno = errno;
170 errno = req->errorno;
171
172 if (req->type == REQ_READ) 333 if (req->type == REQ_READ)
173 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); 334 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
174 335
175 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) 336 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
176 SvREADONLY_off (req->data); 337 SvREADONLY_off (req->data);
… …
180 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 341 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
181 PL_laststatval = req->result; 342 PL_laststatval = req->result;
182 PL_statcache = *(req->statdata); 343 PL_statcache = *(req->statdata);
183 } 344 }
184 345
185 ENTER; 346 req_invoke (req);
186 PUSHMARK (SP);
187 347
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++; 348 count++;
248 } 349 }
249 350
250 free_req (req); 351 req_free (req);
251 } 352 }
252 353
253 return count; 354 return count;
254} 355}
255 356
256static void *aio_proc(void *arg); 357static void *aio_proc(void *arg);
257 358
258static void
259start_thread (void) 359static void start_thread (void)
260{ 360{
261 sigset_t fullsigset, oldsigset; 361 sigset_t fullsigset, oldsigset;
262 pthread_t tid; 362 pthread_t tid;
263 pthread_attr_t attr; 363 pthread_attr_t attr;
264 364
… …
273 started++; 373 started++;
274 374
275 sigprocmask (SIG_SETMASK, &oldsigset, 0); 375 sigprocmask (SIG_SETMASK, &oldsigset, 0);
276} 376}
277 377
278static void 378static void req_send (aio_req req)
279send_req (aio_req req)
280{ 379{
281 while (started < wanted && nreqs >= started) 380 while (started < wanted && nreqs >= started)
282 start_thread (); 381 start_thread ();
283 382
284 nreqs++; 383 nreqs++;
… …
308 407
309 poll_wait (); 408 poll_wait ();
310 } 409 }
311} 410}
312 411
313static void 412static void end_thread (void)
314end_thread (void)
315{ 413{
316 aio_req req; 414 aio_req req;
317 Newz (0, req, 1, aio_cb); 415 Newz (0, req, 1, aio_cb);
318 req->type = REQ_QUIT; 416 req->type = REQ_QUIT;
319 417
320 send_req (req); 418 req_send (req);
321} 419}
322 420
323static void min_parallel (int nthreads) 421static void min_parallel (int nthreads)
324{ 422{
325 if (wanted < nthreads) 423 if (wanted < nthreads)
… …
370 * normal read/write by using a mutex. slows down execution a lot, 468 * normal read/write by using a mutex. slows down execution a lot,
371 * but that's your problem, not mine. 469 * but that's your problem, not mine.
372 */ 470 */
373static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 471static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
374 472
375static ssize_t 473static 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{ 474{
378 ssize_t res; 475 ssize_t res;
379 off_t ooffset; 476 off_t ooffset;
380 477
381 pthread_mutex_lock (&preadwritelock); 478 pthread_mutex_lock (&preadwritelock);
… …
386 pthread_mutex_unlock (&preadwritelock); 483 pthread_mutex_unlock (&preadwritelock);
387 484
388 return res; 485 return res;
389} 486}
390 487
391static ssize_t
392pwrite (int fd, void *buf, size_t count, off_t offset) 488static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
393{ 489{
394 ssize_t res; 490 ssize_t res;
395 off_t ooffset; 491 off_t ooffset;
396 492
397 pthread_mutex_lock (&preadwritelock); 493 pthread_mutex_lock (&preadwritelock);
… …
410#endif 506#endif
411 507
412#if !HAVE_READAHEAD 508#if !HAVE_READAHEAD
413# define readahead aio_readahead 509# define readahead aio_readahead
414 510
415static ssize_t
416readahead (int fd, off_t offset, size_t count) 511static ssize_t readahead (int fd, off_t offset, size_t count)
417{ 512{
418 char readahead_buf[4096]; 513 char readahead_buf[4096];
419 514
420 while (count > 0) 515 while (count > 0)
421 { 516 {
… …
433#if !HAVE_READDIR_R 528#if !HAVE_READDIR_R
434# define readdir_r aio_readdir_r 529# define readdir_r aio_readdir_r
435 530
436static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 531static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437 532
438static int
439readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 533static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
440{ 534{
441 struct dirent *e; 535 struct dirent *e;
442 int errorno; 536 int errorno;
443 537
444 pthread_mutex_lock (&readdirlock); 538 pthread_mutex_lock (&readdirlock);
… …
460 return e ? 0 : -1; 554 return e ? 0 : -1;
461} 555}
462#endif 556#endif
463 557
464/* sendfile always needs emulation */ 558/* sendfile always needs emulation */
465static ssize_t
466sendfile_ (int ofd, int ifd, off_t offset, size_t count) 559static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
467{ 560{
468 ssize_t res; 561 ssize_t res;
469 562
470 if (!count) 563 if (!count)
471 return 0; 564 return 0;
… …
553 646
554 return res; 647 return res;
555} 648}
556 649
557/* read a full directory */ 650/* read a full directory */
558static int
559scandir_ (const char *path, void **namesp) 651static int scandir_ (const char *path, void **namesp)
560{ 652{
561 DIR *dirp = opendir (path); 653 DIR *dirp = opendir (path);
562 union 654 union
563 { 655 {
564 struct dirent d; 656 struct dirent d;
… …
618 return res; 710 return res;
619} 711}
620 712
621/*****************************************************************************/ 713/*****************************************************************************/
622 714
623static void *
624aio_proc (void *thr_arg) 715static void *aio_proc (void *thr_arg)
625{ 716{
626 aio_req req; 717 aio_req req;
627 int type; 718 int type;
628 719
629 do 720 do
… …
648 739
649 pthread_mutex_unlock (&reqlock); 740 pthread_mutex_unlock (&reqlock);
650 741
651 errno = 0; /* strictly unnecessary */ 742 errno = 0; /* strictly unnecessary */
652 743
653 type = req->type; 744 if (!req->cancelled)
654
655 switch (type) 745 switch (req->type)
656 { 746 {
657 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 747 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; 748 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
659 749
660 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 750 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; 751 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
662 752
663 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 753 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
664 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 754 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
665 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 755 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
666 756
667 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 757 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
668 case REQ_CLOSE: req->result = close (req->fd); break; 758 case REQ_CLOSE: req->result = close (req->fd); break;
669 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 759 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
670 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 760 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; 761 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; 762 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
673 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 763 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
674 764
675 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 765 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
676 case REQ_FSYNC: req->result = fsync (req->fd); break; 766 case REQ_FSYNC: req->result = fsync (req->fd); break;
677 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 767 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
678 768
769 case REQ_SLEEP:
770 {
771 struct timeval tv;
772
773 tv.tv_sec = req->fd;
774 tv.tv_usec = req->fd2;
775
776 req->result = select (0, 0, 0, 0, &tv);
777 }
778
679 case REQ_QUIT: 779 case REQ_QUIT:
680 break; 780 break;
681 781
682 default: 782 default:
683 req->result = ENOSYS; 783 req->result = ENOSYS;
684 break; 784 break;
685 } 785 }
686 786
687 req->errorno = errno; 787 req->errorno = errno;
688 788
689 pthread_mutex_lock (&reslock); 789 pthread_mutex_lock (&reslock);
690 790
… …
744 844
745 while (reqs) 845 while (reqs)
746 { 846 {
747 prv = reqs; 847 prv = reqs;
748 reqs = prv->next; 848 reqs = prv->next;
749 free_req (prv); 849 req_free (prv);
750 } 850 }
751 851
752 reqs = reqe = 0; 852 reqs = reqe = 0;
753 853
754 while (ress) 854 while (ress)
755 { 855 {
756 prv = ress; 856 prv = ress;
757 ress = prv->next; 857 ress = prv->next;
758 free_req (prv); 858 req_free (prv);
759 } 859 }
760 860
761 ress = rese = 0; 861 ress = rese = 0;
762 862
763 close (respipe [0]); 863 close (respipe [0]);
… …
769 869
770#define dREQ \ 870#define dREQ \
771 aio_req req; \ 871 aio_req req; \
772 \ 872 \
773 if (SvOK (callback) && !SvROK (callback)) \ 873 if (SvOK (callback) && !SvROK (callback)) \
774 croak ("clalback must be undef or of reference type"); \ 874 croak ("callback must be undef or of reference type"); \
775 \ 875 \
776 Newz (0, req, 1, aio_cb); \ 876 Newz (0, req, 1, aio_cb); \
777 if (!req) \ 877 if (!req) \
778 croak ("out of memory during aio_req allocation"); \ 878 croak ("out of memory during aio_req allocation"); \
779 \ 879 \
780 req->callback = newSVsv (callback); 880 req->callback = newSVsv (callback)
881
882#define REQ_SEND \
883 req_send (req); \
884 \
885 if (GIMME_V != G_VOID) \
886 XPUSHs (req_sv (req, AIO_REQ_KLASS));
781 887
782MODULE = IO::AIO PACKAGE = IO::AIO 888MODULE = IO::AIO PACKAGE = IO::AIO
783 889
784PROTOTYPES: ENABLE 890PROTOTYPES: ENABLE
785 891
… …
817 SV * pathname 923 SV * pathname
818 int flags 924 int flags
819 int mode 925 int mode
820 SV * callback 926 SV * callback
821 PROTOTYPE: $$$;$ 927 PROTOTYPE: $$$;$
822 CODE: 928 PPCODE:
823{ 929{
824 dREQ; 930 dREQ;
825 931
826 req->type = REQ_OPEN; 932 req->type = REQ_OPEN;
827 req->data = newSVsv (pathname); 933 req->data = newSVsv (pathname);
828 req->dataptr = SvPVbyte_nolen (req->data); 934 req->dataptr = SvPVbyte_nolen (req->data);
829 req->fd = flags; 935 req->fd = flags;
830 req->mode = mode; 936 req->mode = mode;
831 937
832 send_req (req); 938 REQ_SEND;
833} 939}
834 940
835void 941void
836aio_close (fh,callback=&PL_sv_undef) 942aio_close (fh,callback=&PL_sv_undef)
837 SV * fh 943 SV * fh
… …
839 PROTOTYPE: $;$ 945 PROTOTYPE: $;$
840 ALIAS: 946 ALIAS:
841 aio_close = REQ_CLOSE 947 aio_close = REQ_CLOSE
842 aio_fsync = REQ_FSYNC 948 aio_fsync = REQ_FSYNC
843 aio_fdatasync = REQ_FDATASYNC 949 aio_fdatasync = REQ_FDATASYNC
844 CODE: 950 PPCODE:
845{ 951{
846 dREQ; 952 dREQ;
847 953
848 req->type = ix; 954 req->type = ix;
849 req->fh = newSVsv (fh); 955 req->fh = newSVsv (fh);
850 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 956 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
851 957
852 send_req (req); 958 REQ_SEND (req);
853} 959}
854 960
855void 961void
856aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 962aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
857 SV * fh 963 SV * fh
… …
862 SV * callback 968 SV * callback
863 ALIAS: 969 ALIAS:
864 aio_read = REQ_READ 970 aio_read = REQ_READ
865 aio_write = REQ_WRITE 971 aio_write = REQ_WRITE
866 PROTOTYPE: $$$$$;$ 972 PROTOTYPE: $$$$$;$
867 CODE: 973 PPCODE:
868{ 974{
869 aio_req req; 975 aio_req req;
870 STRLEN svlen; 976 STRLEN svlen;
871 char *svptr = SvPVbyte (data, svlen); 977 char *svptr = SvPVbyte (data, svlen);
872 978
… …
910 { 1016 {
911 SvREADONLY_on (data); 1017 SvREADONLY_on (data);
912 req->data2ptr = (void *)data; 1018 req->data2ptr = (void *)data;
913 } 1019 }
914 1020
915 send_req (req); 1021 REQ_SEND;
916 } 1022 }
917} 1023}
918 1024
919void 1025void
920aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1026aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
… …
922 SV * in_fh 1028 SV * in_fh
923 UV in_offset 1029 UV in_offset
924 UV length 1030 UV length
925 SV * callback 1031 SV * callback
926 PROTOTYPE: $$$$;$ 1032 PROTOTYPE: $$$$;$
927 CODE: 1033 PPCODE:
928{ 1034{
929 dREQ; 1035 dREQ;
930 1036
931 req->type = REQ_SENDFILE; 1037 req->type = REQ_SENDFILE;
932 req->fh = newSVsv (out_fh); 1038 req->fh = newSVsv (out_fh);
… …
934 req->fh2 = newSVsv (in_fh); 1040 req->fh2 = newSVsv (in_fh);
935 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1041 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
936 req->offset = in_offset; 1042 req->offset = in_offset;
937 req->length = length; 1043 req->length = length;
938 1044
939 send_req (req); 1045 REQ_SEND;
940} 1046}
941 1047
942void 1048void
943aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1049aio_readahead (fh,offset,length,callback=&PL_sv_undef)
944 SV * fh 1050 SV * fh
945 UV offset 1051 UV offset
946 IV length 1052 IV length
947 SV * callback 1053 SV * callback
948 PROTOTYPE: $$$;$ 1054 PROTOTYPE: $$$;$
949 CODE: 1055 PPCODE:
950{ 1056{
951 dREQ; 1057 dREQ;
952 1058
953 req->type = REQ_READAHEAD; 1059 req->type = REQ_READAHEAD;
954 req->fh = newSVsv (fh); 1060 req->fh = newSVsv (fh);
955 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1061 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
956 req->offset = offset; 1062 req->offset = offset;
957 req->length = length; 1063 req->length = length;
958 1064
959 send_req (req); 1065 REQ_SEND;
960} 1066}
961 1067
962void 1068void
963aio_stat (fh_or_path,callback=&PL_sv_undef) 1069aio_stat (fh_or_path,callback=&PL_sv_undef)
964 SV * fh_or_path 1070 SV * fh_or_path
965 SV * callback 1071 SV * callback
966 ALIAS: 1072 ALIAS:
967 aio_stat = REQ_STAT 1073 aio_stat = REQ_STAT
968 aio_lstat = REQ_LSTAT 1074 aio_lstat = REQ_LSTAT
969 CODE: 1075 PPCODE:
970{ 1076{
971 dREQ; 1077 dREQ;
972 1078
973 New (0, req->statdata, 1, Stat_t); 1079 New (0, req->statdata, 1, Stat_t);
974 if (!req->statdata) 1080 if (!req->statdata)
975 { 1081 {
976 free_req (req); 1082 req_free (req);
977 croak ("out of memory during aio_req->statdata allocation"); 1083 croak ("out of memory during aio_req->statdata allocation");
978 } 1084 }
979 1085
980 if (SvPOK (fh_or_path)) 1086 if (SvPOK (fh_or_path))
981 { 1087 {
… …
988 req->type = REQ_FSTAT; 1094 req->type = REQ_FSTAT;
989 req->fh = newSVsv (fh_or_path); 1095 req->fh = newSVsv (fh_or_path);
990 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1096 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
991 } 1097 }
992 1098
993 send_req (req); 1099 REQ_SEND;
994} 1100}
995 1101
996void 1102void
997aio_unlink (pathname,callback=&PL_sv_undef) 1103aio_unlink (pathname,callback=&PL_sv_undef)
998 SV * pathname 1104 SV * pathname
999 SV * callback 1105 SV * callback
1000 ALIAS: 1106 ALIAS:
1001 aio_unlink = REQ_UNLINK 1107 aio_unlink = REQ_UNLINK
1002 aio_rmdir = REQ_RMDIR 1108 aio_rmdir = REQ_RMDIR
1003 aio_readdir = REQ_READDIR 1109 aio_readdir = REQ_READDIR
1004 CODE: 1110 PPCODE:
1005{ 1111{
1006 dREQ; 1112 dREQ;
1007 1113
1008 req->type = ix; 1114 req->type = ix;
1009 req->data = newSVsv (pathname); 1115 req->data = newSVsv (pathname);
1010 req->dataptr = SvPVbyte_nolen (req->data); 1116 req->dataptr = SvPVbyte_nolen (req->data);
1011 1117
1012 send_req (req); 1118 REQ_SEND;
1013} 1119}
1014 1120
1015void 1121void
1016aio_link (oldpath,newpath,callback=&PL_sv_undef) 1122aio_link (oldpath,newpath,callback=&PL_sv_undef)
1017 SV * oldpath 1123 SV * oldpath
… …
1019 SV * callback 1125 SV * callback
1020 ALIAS: 1126 ALIAS:
1021 aio_link = REQ_LINK 1127 aio_link = REQ_LINK
1022 aio_symlink = REQ_SYMLINK 1128 aio_symlink = REQ_SYMLINK
1023 aio_rename = REQ_RENAME 1129 aio_rename = REQ_RENAME
1024 CODE: 1130 PPCODE:
1025{ 1131{
1026 dREQ; 1132 dREQ;
1027 1133
1028 req->type = ix; 1134 req->type = ix;
1029 req->fh = newSVsv (oldpath); 1135 req->fh = newSVsv (oldpath);
1030 req->data2ptr = SvPVbyte_nolen (req->fh); 1136 req->data2ptr = SvPVbyte_nolen (req->fh);
1031 req->data = newSVsv (newpath); 1137 req->data = newSVsv (newpath);
1032 req->dataptr = SvPVbyte_nolen (req->data); 1138 req->dataptr = SvPVbyte_nolen (req->data);
1033 1139
1034 send_req (req); 1140 REQ_SEND;
1035} 1141}
1036 1142
1037#if 0
1038
1039# undocumented, because it does not cancel active requests
1040void 1143void
1041cancel_most_requests () 1144aio_sleep (delay,callback=&PL_sv_undef)
1145 double delay
1146 SV * callback
1147 PPCODE:
1148{
1149 dREQ;
1150
1151 req->type = REQ_SLEEP;
1152 req->fd = delay < 0. ? 0 : delay;
1153 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1154
1155 REQ_SEND;
1156}
1157
1158void
1159aio_group (callback=&PL_sv_undef)
1160 SV * callback
1042 PROTOTYPE: 1161 PROTOTYPE: ;$
1043 CODE: 1162 PPCODE:
1044{ 1163{
1045 aio_req *req; 1164 dREQ;
1165 req->type = REQ_GROUP;
1166 req->grp_next = req;
1167 req->grp_prev = req;
1046 1168
1047 pthread_mutex_lock (&reqlock); 1169 req_send (req);
1048 for (req = reqs; req; req = req->next) 1170 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} 1171}
1057
1058#endif
1059 1172
1060void 1173void
1061flush () 1174flush ()
1062 PROTOTYPE: 1175 PROTOTYPE:
1063 CODE: 1176 CODE:
… …
1106 CODE: 1219 CODE:
1107 RETVAL = nreqs; 1220 RETVAL = nreqs;
1108 OUTPUT: 1221 OUTPUT:
1109 RETVAL 1222 RETVAL
1110 1223
1224PROTOTYPES: DISABLE
1225
1226MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1227
1228void
1229cancel (aio_req_ornot req)
1230 PROTOTYPE:
1231 CODE:
1232 req_cancel (req);
1233
1234MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1235
1236void
1237add (aio_req grp, ...)
1238 PPCODE:
1239{
1240 int i;
1241
1242 for (i = 1; i < items; ++i )
1243 {
1244 if (GIMME_V != G_VOID)
1245 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1246
1247 aio_req req = SvAIO_REQ (ST (i));
1248
1249 if (req)
1250 {
1251 req->grp_prev = grp;
1252 req->grp_next = grp->grp_next;
1253 grp->grp_next->grp_prev = req;
1254 grp->grp_next = req;
1255
1256 req->grp = grp;
1257 }
1258 }
1259}
1260
1261void
1262result (aio_req grp, ...)
1263 CODE:
1264{
1265 int i;
1266 AV *av = newAV ();
1267
1268 if (grp->data)
1269 SvREFCNT_dec (grp->data);
1270
1271 for (i = 1; i < items; ++i )
1272 av_push (av, newSVsv (ST (i)));
1273
1274 grp->data = (SV *)av;
1275}
1276

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