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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.12 by root, Wed Jul 20 21:57:04 2005 UTC vs.
Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC

1#define _XOPEN_SOURCE 500 1#define _REENTRANT 1
2#include <errno.h>
2 3
3#include "EXTERN.h" 4#include "EXTERN.h"
4#include "perl.h" 5#include "perl.h"
5#include "XSUB.h" 6#include "XSUB.h"
7
8#include "autoconf/config.h"
6 9
7#include <sys/types.h> 10#include <sys/types.h>
8#include <sys/stat.h> 11#include <sys/stat.h>
9 12
10#include <unistd.h> 13#include <unistd.h>
11#include <fcntl.h> 14#include <fcntl.h>
12#include <signal.h> 15#include <signal.h>
13#include <sched.h> 16#include <sched.h>
14#if __linux
15#include <sys/syscall.h>
16#endif
17 17
18#include <pthread.h> 18#include <pthread.h>
19 19
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
… …
29 29
30enum { 30enum {
31 REQ_QUIT, 31 REQ_QUIT,
32 REQ_OPEN, REQ_CLOSE, 32 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD, 33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, 34 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC, 35 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK,
36}; 38};
37 39
38typedef struct aio_cb { 40typedef struct aio_cb {
39 struct aio_cb *volatile next; 41 struct aio_cb *volatile next;
40 42
… …
44 off_t offset; 46 off_t offset;
45 size_t length; 47 size_t length;
46 ssize_t result; 48 ssize_t result;
47 mode_t mode; /* open */ 49 mode_t mode; /* open */
48 int errorno; 50 int errorno;
49 SV *data, *callback; 51 SV *data, *callback, *fh;
50 void *dataptr; 52 void *dataptr, *data2ptr;
51 STRLEN dataoffset; 53 STRLEN dataoffset;
52 54
53 Stat_t *statdata; 55 Stat_t *statdata;
54} aio_cb; 56} aio_cb;
55 57
… …
60static int max_outstanding = 1<<30; 62static int max_outstanding = 1<<30;
61static int respipe [2]; 63static int respipe [2];
62 64
63static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
65static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 68static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66 69
67static volatile aio_req reqs, reqe; /* queue start, queue end */ 70static volatile aio_req reqs, reqe; /* queue start, queue end */
68static volatile aio_req ress, rese; /* queue start, queue end */ 71static volatile aio_req ress, rese; /* queue start, queue end */
69 72
… …
83static int 86static int
84poll_cb () 87poll_cb ()
85{ 88{
86 dSP; 89 dSP;
87 int count = 0; 90 int count = 0;
91 int do_croak = 0;
88 aio_req req, prv; 92 aio_req req, prv;
89 93
90 pthread_mutex_lock (&reslock); 94 pthread_mutex_lock (&reslock);
91 95
92 { 96 {
93 /* read any signals sent by the worker threads */ 97 /* read any signals sent by the worker threads */
94 char buf [32]; 98 char buf [32];
95 while (read (respipe [0], buf, 32) > 0) 99 while (read (respipe [0], buf, 32) == 32)
96 ; 100 ;
97 } 101 }
98 102
99 req = ress; 103 req = ress;
100 ress = rese = 0; 104 ress = rese = 0;
… …
117 + req->result > 0 ? req->result : 0); 121 + req->result > 0 ? req->result : 0);
118 122
119 if (req->data) 123 if (req->data)
120 SvREFCNT_dec (req->data); 124 SvREFCNT_dec (req->data);
121 125
126 if (req->fh)
127 SvREFCNT_dec (req->fh);
128
122 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) 129 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
123 { 130 {
124 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 131 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125 PL_laststatval = req->result; 132 PL_laststatval = req->result;
126 PL_statcache = *(req->statdata); 133 PL_statcache = *(req->statdata);
127 134
128 Safefree (req->statdata); 135 Safefree (req->statdata);
129 } 136 }
130 137
138 ENTER;
131 PUSHMARK (SP); 139 PUSHMARK (SP);
132 XPUSHs (sv_2mortal (newSViv (req->result))); 140 XPUSHs (sv_2mortal (newSViv (req->result)));
133 141
134 if (req->type == REQ_OPEN) 142 if (req->type == REQ_OPEN)
135 { 143 {
… …
138 146
139 PUTBACK; 147 PUTBACK;
140 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 148 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
141 SPAGAIN; 149 SPAGAIN;
142 150
143 fh = POPs; 151 fh = SvREFCNT_inc (POPs);
144 152
145 PUSHMARK (SP); 153 PUSHMARK (SP);
146 XPUSHs (fh); 154 XPUSHs (sv_2mortal (fh));
147 } 155 }
148 156
149 if (SvOK (req->callback)) 157 if (SvOK (req->callback))
150 { 158 {
151 PUTBACK; 159 PUTBACK;
152 call_sv (req->callback, G_VOID | G_EVAL); 160 call_sv (req->callback, G_VOID | G_EVAL);
153 SPAGAIN; 161 SPAGAIN;
154 } 162 }
163
164 do_croak = SvTRUE (ERRSV);
165
166 LEAVE;
155 167
156 if (req->callback) 168 if (req->callback)
157 SvREFCNT_dec (req->callback); 169 SvREFCNT_dec (req->callback);
158 170
159 errno = errorno; 171 errno = errorno;
… …
162 174
163 prv = req; 175 prv = req;
164 req = req->next; 176 req = req->next;
165 Safefree (prv); 177 Safefree (prv);
166 178
167 /* TODO: croak on errors? */ 179 if (do_croak)
180 croak (0);
168 } 181 }
169 182
170 return count; 183 return count;
171} 184}
172 185
… …
227 req->type = REQ_QUIT; 240 req->type = REQ_QUIT;
228 241
229 send_req (req); 242 send_req (req);
230} 243}
231 244
232static void
233read_write (int dowrite, int fd, off_t offset, size_t length,
234 SV *data, STRLEN dataoffset, SV *callback)
235{
236 aio_req req;
237 STRLEN svlen;
238 char *svptr = SvPV (data, svlen);
239 245
240 SvUPGRADE (data, SVt_PV); 246static void min_parallel (int nthreads)
241 SvPOK_on (data); 247{
248 while (nthreads > started)
249 start_thread ();
250}
242 251
243 if (dataoffset < 0) 252static void max_parallel (int nthreads)
244 dataoffset += svlen; 253{
254 int cur = started;
255 while (cur > nthreads)
256 {
257 end_thread ();
258 cur--;
259 }
245 260
246 if (dataoffset < 0 || dataoffset > svlen) 261 while (started > nthreads)
247 croak ("data offset outside of string");
248
249 if (dowrite)
250 { 262 {
251 /* write: check length and adjust. */ 263 poll_wait ();
252 if (length < 0 || length + dataoffset > svlen) 264 poll_cb ();
253 length = svlen - dataoffset;
254 } 265 }
255 else 266}
267
268static int fork_started;
269
270static void atfork_prepare (void)
271{
272 int nstarted;
273
274 for (;;) {
275 while (nreqs)
276 {
277 poll_wait ();
278 poll_cb ();
279 }
280
281 nstarted = started;
282 max_parallel (0);
283
284 pthread_mutex_lock (&reqlock);
285
286 if (!nreqs && !started)
287 break;
288
289 pthread_mutex_unlock (&reqlock);
290
291 min_parallel (fork_started);
292 }
293
294 pthread_mutex_lock (&frklock);
295 fork_started = nstarted;
296 pthread_mutex_lock (&reslock);
297
298 assert (!started);
299 assert (!nreqs);
300 assert (!reqs && !reqe);
301 assert (!ress && !rese);
302}
303
304static void atfork_parent (void)
305{
306 pthread_mutex_unlock (&reslock);
307 pthread_mutex_unlock (&frklock);
308 pthread_mutex_unlock (&reqlock);
309
310 min_parallel (fork_started);
311}
312
313#define atfork_child atfork_parent
314
315/*****************************************************************************/
316/* work around various missing functions */
317
318#if !HAVE_PREADWRITE
319# define pread aio_pread
320# define pwrite aio_pwrite
321
322/*
323 * make our pread/pwrite safe against themselves, but not against
324 * normal read/write by using a mutex. slows down execution a lot,
325 * but that's your problem, not mine.
326 */
327static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
328
329static ssize_t
330pread (int fd, void *buf, size_t count, off_t offset)
331{
332 ssize_t res;
333 off_t ooffset;
334
335 pthread_mutex_lock (&iolock);
336 ooffset = lseek (fd, 0, SEEK_CUR);
337 lseek (fd, offset, SEEK_SET);
338 res = read (fd, buf, count);
339 lseek (fd, ooffset, SEEK_SET);
340 pthread_mutex_unlock (&iolock);
341
342 return res;
343}
344
345static ssize_t
346pwrite (int fd, void *buf, size_t count, off_t offset)
347{
348 ssize_t res;
349 off_t ooffset;
350
351 pthread_mutex_lock (&iolock);
352 ooffset = lseek (fd, 0, SEEK_CUR);
353 lseek (fd, offset, SEEK_SET);
354 res = write (fd, buf, count);
355 lseek (fd, offset, SEEK_SET);
356 pthread_mutex_unlock (&iolock);
357
358 return res;
359}
360#endif
361
362#if !HAVE_FDATASYNC
363# define fdatasync fsync
364#endif
365
366#if !HAVE_READAHEAD
367# define readahead aio_readahead
368
369static char readahead_buf[4096];
370
371static ssize_t
372readahead (int fd, off_t offset, size_t count)
373{
374 while (count > 0)
256 { 375 {
257 /* read: grow scalar as necessary */ 376 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
258 svptr = SvGROW (data, length + dataoffset); 377
378 pread (fd, readahead_buf, len, offset);
379 offset += len;
380 count -= len;
259 } 381 }
260 382
261 if (length < 0) 383 errno = 0;
262 croak ("length must not be negative");
263
264 Newz (0, req, 1, aio_cb);
265
266 if (!req)
267 croak ("out of memory during aio_req allocation");
268
269 req->type = dowrite ? REQ_WRITE : REQ_READ;
270 req->fd = fd;
271 req->offset = offset;
272 req->length = length;
273 req->data = SvREFCNT_inc (data);
274 req->dataptr = (char *)svptr + dataoffset;
275 req->callback = SvREFCNT_inc (callback);
276
277 send_req (req);
278} 384}
385#endif
386
387/*****************************************************************************/
279 388
280static void * 389static void *
281aio_proc (void *thr_arg) 390aio_proc (void *thr_arg)
282{ 391{
283 aio_req req; 392 aio_req req;
… …
311 420
312 switch (type) 421 switch (type)
313 { 422 {
314 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 423 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
315 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 424 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
316#if SYS_readahead 425
317 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 426 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
318#else
319 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
320#endif
321 427
322 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 428 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
323 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 429 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
324 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 430 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
325 431
326 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 432 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
327 case REQ_CLOSE: req->result = close (req->fd); break; 433 case REQ_CLOSE: req->result = close (req->fd); break;
328 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 434 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
435 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
436 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
329 437
438 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
330 case REQ_FSYNC: req->result = fsync (req->fd); break; 439 case REQ_FSYNC: req->result = fsync (req->fd); break;
331 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
332 440
333 case REQ_QUIT: 441 case REQ_QUIT:
334 break; 442 break;
335 443
336 default: 444 default:
… …
362 while (type != REQ_QUIT); 470 while (type != REQ_QUIT);
363 471
364 return 0; 472 return 0;
365} 473}
366 474
475#define dREQ \
476 aio_req req; \
477 \
478 if (SvOK (callback) && !SvROK (callback)) \
479 croak ("clalback must be undef or of reference type"); \
480 \
481 Newz (0, req, 1, aio_cb); \
482 if (!req) \
483 croak ("out of memory during aio_req allocation"); \
484 \
485 req->callback = SvREFCNT_inc (callback);
486
367MODULE = IO::AIO PACKAGE = IO::AIO 487MODULE = IO::AIO PACKAGE = IO::AIO
368 488
369PROTOTYPES: ENABLE 489PROTOTYPES: ENABLE
370 490
371BOOT: 491BOOT:
… …
376 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 496 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
377 croak ("cannot set result pipe to nonblocking mode"); 497 croak ("cannot set result pipe to nonblocking mode");
378 498
379 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 499 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
380 croak ("cannot set result pipe to nonblocking mode"); 500 croak ("cannot set result pipe to nonblocking mode");
501
502 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
381} 503}
382 504
383void 505void
384min_parallel(nthreads) 506min_parallel(nthreads)
385 int nthreads 507 int nthreads
386 PROTOTYPE: $ 508 PROTOTYPE: $
387 CODE:
388 while (nthreads > started)
389 start_thread ();
390 509
391void 510void
392max_parallel(nthreads) 511max_parallel(nthreads)
393 int nthreads 512 int nthreads
394 PROTOTYPE: $ 513 PROTOTYPE: $
395 CODE:
396{
397 int cur = started;
398 while (cur > nthreads)
399 {
400 end_thread ();
401 cur--;
402 }
403
404 while (started > nthreads)
405 {
406 poll_wait ();
407 poll_cb ();
408 }
409}
410 514
411int 515int
412max_outstanding(nreqs) 516max_outstanding(nreqs)
413 int nreqs 517 int nreqs
414 PROTOTYPE: $ 518 PROTOTYPE: $
… …
423 int mode 527 int mode
424 SV * callback 528 SV * callback
425 PROTOTYPE: $$$;$ 529 PROTOTYPE: $$$;$
426 CODE: 530 CODE:
427{ 531{
428 aio_req req; 532 dREQ;
429
430 Newz (0, req, 1, aio_cb);
431
432 if (!req)
433 croak ("out of memory during aio_req allocation");
434 533
435 req->type = REQ_OPEN; 534 req->type = REQ_OPEN;
436 req->data = newSVsv (pathname); 535 req->data = newSVsv (pathname);
437 req->dataptr = SvPV_nolen (req->data); 536 req->dataptr = SvPVbyte_nolen (req->data);
438 req->fd = flags; 537 req->fd = flags;
439 req->mode = mode; 538 req->mode = mode;
440 req->callback = SvREFCNT_inc (callback);
441 539
442 send_req (req); 540 send_req (req);
443} 541}
444 542
445void 543void
446aio_close(fh,callback=&PL_sv_undef) 544aio_close(fh,callback=&PL_sv_undef)
447 InputStream fh 545 SV * fh
448 SV * callback 546 SV * callback
449 PROTOTYPE: $;$ 547 PROTOTYPE: $;$
450 ALIAS: 548 ALIAS:
451 aio_close = REQ_CLOSE 549 aio_close = REQ_CLOSE
452 aio_fsync = REQ_FSYNC 550 aio_fsync = REQ_FSYNC
453 aio_fdatasync = REQ_FDATASYNC 551 aio_fdatasync = REQ_FDATASYNC
454 CODE: 552 CODE:
455{ 553{
456 aio_req req; 554 dREQ;
457
458 Newz (0, req, 1, aio_cb);
459
460 if (!req)
461 croak ("out of memory during aio_req allocation");
462 555
463 req->type = ix; 556 req->type = ix;
557 req->fh = newSVsv (fh);
464 req->fd = PerlIO_fileno (fh); 558 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
465 req->callback = SvREFCNT_inc (callback);
466 559
467 send_req (req); 560 send_req (req);
468} 561}
469 562
470void 563void
471aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 564aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
472 InputStream fh 565 SV * fh
473 UV offset 566 UV offset
474 IV length 567 IV length
475 SV * data 568 SV * data
476 IV dataoffset 569 IV dataoffset
477 SV * callback 570 SV * callback
571 ALIAS:
572 aio_read = REQ_READ
573 aio_write = REQ_WRITE
478 PROTOTYPE: $$$$$;$ 574 PROTOTYPE: $$$$$;$
479 CODE: 575 CODE:
480 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); 576{
577 aio_req req;
578 STRLEN svlen;
579 char *svptr = SvPVbyte (data, svlen);
481 580
482void 581 SvUPGRADE (data, SVt_PV);
483aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 582 SvPOK_on (data);
484 OutputStream fh 583
485 UV offset 584 if (dataoffset < 0)
486 IV length 585 dataoffset += svlen;
487 SV * data 586
488 IV dataoffset 587 if (dataoffset < 0 || dataoffset > svlen)
489 SV * callback 588 croak ("data offset outside of string");
490 PROTOTYPE: $$$$$;$ 589
491 CODE: 590 if (ix == REQ_WRITE)
492 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); 591 {
592 /* write: check length and adjust. */
593 if (length < 0 || length + dataoffset > svlen)
594 length = svlen - dataoffset;
595 }
596 else
597 {
598 /* read: grow scalar as necessary */
599 svptr = SvGROW (data, length + dataoffset);
600 }
601
602 if (length < 0)
603 croak ("length must not be negative");
604
605 {
606 dREQ;
607
608 req->type = ix;
609 req->fh = newSVsv (fh);
610 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
611 : IoOFP (sv_2io (fh)));
612 req->offset = offset;
613 req->length = length;
614 req->data = SvREFCNT_inc (data);
615 req->dataptr = (char *)svptr + dataoffset;
616 req->callback = SvREFCNT_inc (callback);
617
618 send_req (req);
619 }
620}
493 621
494void 622void
495aio_readahead(fh,offset,length,callback=&PL_sv_undef) 623aio_readahead(fh,offset,length,callback=&PL_sv_undef)
496 InputStream fh 624 SV * fh
497 UV offset 625 UV offset
498 IV length 626 IV length
499 SV * callback 627 SV * callback
500 PROTOTYPE: $$$;$ 628 PROTOTYPE: $$$;$
501 CODE: 629 CODE:
502{ 630{
503 aio_req req; 631 dREQ;
504
505 if (length < 0)
506 croak ("length must not be negative");
507
508 Newz (0, req, 1, aio_cb);
509
510 if (!req)
511 croak ("out of memory during aio_req allocation");
512 632
513 req->type = REQ_READAHEAD; 633 req->type = REQ_READAHEAD;
634 req->fh = newSVsv (fh);
514 req->fd = PerlIO_fileno (fh); 635 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
515 req->offset = offset; 636 req->offset = offset;
516 req->length = length; 637 req->length = length;
517 req->callback = SvREFCNT_inc (callback);
518 638
519 send_req (req); 639 send_req (req);
520} 640}
521 641
522void 642void
… …
526 ALIAS: 646 ALIAS:
527 aio_stat = REQ_STAT 647 aio_stat = REQ_STAT
528 aio_lstat = REQ_LSTAT 648 aio_lstat = REQ_LSTAT
529 CODE: 649 CODE:
530{ 650{
531 aio_req req; 651 dREQ;
532
533 Newz (0, req, 1, aio_cb);
534
535 if (!req)
536 croak ("out of memory during aio_req allocation");
537 652
538 New (0, req->statdata, 1, Stat_t); 653 New (0, req->statdata, 1, Stat_t);
539
540 if (!req->statdata) 654 if (!req->statdata)
541 croak ("out of memory during aio_req->statdata allocation"); 655 croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");
542 656
543 if (SvPOK (fh_or_path)) 657 if (SvPOK (fh_or_path))
544 { 658 {
545 req->type = ix; 659 req->type = ix;
546 req->data = newSVsv (fh_or_path); 660 req->data = newSVsv (fh_or_path);
547 req->dataptr = SvPV_nolen (req->data); 661 req->dataptr = SvPVbyte_nolen (req->data);
548 } 662 }
549 else 663 else
550 { 664 {
551 req->type = REQ_FSTAT; 665 req->type = REQ_FSTAT;
666 req->fh = newSVsv (fh_or_path);
552 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 667 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
553 } 668 }
554
555 req->callback = SvREFCNT_inc (callback);
556 669
557 send_req (req); 670 send_req (req);
558} 671}
559 672
560void 673void
561aio_unlink(pathname,callback=&PL_sv_undef) 674aio_unlink(pathname,callback=&PL_sv_undef)
562 SV * pathname 675 SV * pathname
563 SV * callback 676 SV * callback
677 ALIAS:
678 aio_unlink = REQ_UNLINK
679 aio_rmdir = REQ_RMDIR
564 CODE: 680 CODE:
565{ 681{
566 aio_req req; 682 dREQ;
567 683
568 Newz (0, req, 1, aio_cb); 684 req->type = ix;
685 req->data = newSVsv (pathname);
686 req->dataptr = SvPVbyte_nolen (req->data);
569 687
570 if (!req) 688 send_req (req);
571 croak ("out of memory during aio_req allocation"); 689}
690
691void
692aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
693 SV * oldpath
694 SV * newpath
695 SV * callback
696 CODE:
697{
698 dREQ;
572 699
573 req->type = REQ_UNLINK; 700 req->type = REQ_SYMLINK;
701 req->fh = newSVsv (oldpath);
702 req->data2ptr = SvPVbyte_nolen (req->fh);
574 req->data = newSVsv (pathname); 703 req->data = newSVsv (newpath);
575 req->dataptr = SvPV_nolen (req->data); 704 req->dataptr = SvPVbyte_nolen (req->data);
576 req->callback = SvREFCNT_inc (callback);
577 705
578 send_req (req); 706 send_req (req);
579} 707}
580 708
581void 709void

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