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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.15 by root, Sat Jul 23 18:19:56 2005 UTC vs.
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC

1#define _REENTRANT 1
2#include <errno.h>
3
1#include "EXTERN.h" 4#include "EXTERN.h"
2#include "perl.h" 5#include "perl.h"
3#include "XSUB.h" 6#include "XSUB.h"
7
8#include "autoconf/config.h"
9
10#include <pthread.h>
4 11
5#include <sys/types.h> 12#include <sys/types.h>
6#include <sys/stat.h> 13#include <sys/stat.h>
7 14
8#include <unistd.h> 15#include <unistd.h>
9#include <fcntl.h> 16#include <fcntl.h>
10#include <signal.h> 17#include <signal.h>
11#include <sched.h> 18#include <sched.h>
19
20#if HAVE_SENDFILE
12#if __linux 21# if __linux
22# include <sys/sendfile.h>
23# elif __freebsd
13#include <sys/syscall.h> 24# include <sys/socket.h>
25# include <sys/uio.h>
26# elif __hpux
27# include <sys/socket.h>
28# elif __solaris /* not yet */
29# include <sys/sendfile.h>
30# else
31# error sendfile support requested but not available
32# endif
14#endif 33#endif
15
16#include <pthread.h>
17
18typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
19typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
20typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
21 34
22#if __ia64 35#if __ia64
23# define STACKSIZE 65536 36# define STACKSIZE 65536
24#else 37#else
25# define STACKSIZE 4096 38# define STACKSIZE 4096
… …
27 40
28enum { 41enum {
29 REQ_QUIT, 42 REQ_QUIT,
30 REQ_OPEN, REQ_CLOSE, 43 REQ_OPEN, REQ_CLOSE,
31 REQ_READ, REQ_WRITE, REQ_READAHEAD, 44 REQ_READ, REQ_WRITE, REQ_READAHEAD,
45 REQ_SENDFILE,
32 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, 46 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
33 REQ_FSYNC, REQ_FDATASYNC, 47 REQ_FSYNC, REQ_FDATASYNC,
48 REQ_UNLINK, REQ_RMDIR,
49 REQ_SYMLINK,
34}; 50};
35 51
36typedef struct aio_cb { 52typedef struct aio_cb {
37 struct aio_cb *volatile next; 53 struct aio_cb *volatile next;
38 54
39 int type; 55 int type;
40 56
41 int fd; 57 int fd, fd2;
42 off_t offset; 58 off_t offset;
43 size_t length; 59 size_t length;
44 ssize_t result; 60 ssize_t result;
45 mode_t mode; /* open */ 61 mode_t mode; /* open */
46 int errorno; 62 int errorno;
47 SV *data, *callback, *fh; 63 SV *data, *callback;
48 void *dataptr; 64 SV *fh, *fh2;
65 void *dataptr, *data2ptr;
49 STRLEN dataoffset; 66 STRLEN dataoffset;
50 67
51 Stat_t *statdata; 68 Stat_t *statdata;
52} aio_cb; 69} aio_cb;
53 70
54typedef aio_cb *aio_req; 71typedef aio_cb *aio_req;
55 72
56static int started; 73static int started, wanted;
57static volatile int nreqs; 74static volatile int nreqs;
58static int max_outstanding = 1<<30; 75static int max_outstanding = 1<<30;
59static int respipe [2]; 76static int respipe [2];
60 77
61static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 78static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
62static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 79static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
63static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 80static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
64 81
65static volatile aio_req reqs, reqe; /* queue start, queue end */ 82static volatile aio_req reqs, reqe; /* queue start, queue end */
66static volatile aio_req ress, rese; /* queue start, queue end */ 83static volatile aio_req ress, rese; /* queue start, queue end */
84
85static void free_req (aio_req req)
86{
87 if (req->data)
88 SvREFCNT_dec (req->data);
89
90 if (req->fh)
91 SvREFCNT_dec (req->fh);
92
93 if (req->fh2)
94 SvREFCNT_dec (req->fh2);
95
96 if (req->statdata)
97 Safefree (req->statdata);
98
99 if (req->callback)
100 SvREFCNT_dec (req->callback);
101
102 Safefree (req);
103}
67 104
68static void 105static void
69poll_wait () 106poll_wait ()
70{ 107{
71 if (nreqs && !ress) 108 if (nreqs && !ress)
… …
81static int 118static int
82poll_cb () 119poll_cb ()
83{ 120{
84 dSP; 121 dSP;
85 int count = 0; 122 int count = 0;
123 int do_croak = 0;
86 aio_req req, prv; 124 aio_req req;
87 125
88 pthread_mutex_lock (&reslock); 126 for (;;)
89
90 {
91 /* read any signals sent by the worker threads */
92 char buf [32];
93 while (read (respipe [0], buf, 32) > 0)
94 ;
95 }
96
97 req = ress;
98 ress = rese = 0;
99
100 pthread_mutex_unlock (&reslock);
101
102 while (req)
103 { 127 {
128 pthread_mutex_lock (&reslock);
129 req = ress;
130
131 if (req)
132 {
133 ress = req->next;
134
135 if (!ress)
136 {
137 /* read any signals sent by the worker threads */
138 char buf [32];
139 while (read (respipe [0], buf, 32) == 32)
140 ;
141
142 rese = 0;
143 }
144 }
145
146 pthread_mutex_unlock (&reslock);
147
148 if (!req)
149 break;
150
104 nreqs--; 151 nreqs--;
105 152
106 if (req->type == REQ_QUIT) 153 if (req->type == REQ_QUIT)
107 started--; 154 started--;
108 else 155 else
109 { 156 {
110 int errorno = errno; 157 int errorno = errno;
111 errno = req->errorno; 158 errno = req->errorno;
112 159
113 if (req->type == REQ_READ) 160 if (req->type == REQ_READ)
114 SvCUR_set (req->data, req->dataoffset 161 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
115 + req->result > 0 ? req->result : 0);
116 162
163 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
164 SvREADONLY_off (req->data);
165
117 if (req->data) 166 if (req->statdata)
118 SvREFCNT_dec (req->data);
119
120 if (req->fh)
121 SvREFCNT_dec (req->fh);
122
123 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
124 { 167 {
125 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 168 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
126 PL_laststatval = req->result; 169 PL_laststatval = req->result;
127 PL_statcache = *(req->statdata); 170 PL_statcache = *(req->statdata);
128
129 Safefree (req->statdata);
130 } 171 }
131 172
132 ENTER; 173 ENTER;
133 PUSHMARK (SP); 174 PUSHMARK (SP);
134 XPUSHs (sv_2mortal (newSViv (req->result))); 175 XPUSHs (sv_2mortal (newSViv (req->result)));
… …
151 if (SvOK (req->callback)) 192 if (SvOK (req->callback))
152 { 193 {
153 PUTBACK; 194 PUTBACK;
154 call_sv (req->callback, G_VOID | G_EVAL); 195 call_sv (req->callback, G_VOID | G_EVAL);
155 SPAGAIN; 196 SPAGAIN;
197
198 if (SvTRUE (ERRSV))
199 {
200 free_req (req);
201 croak (0);
202 }
156 } 203 }
157 204
158 LEAVE; 205 LEAVE;
159
160 if (req->callback)
161 SvREFCNT_dec (req->callback);
162 206
163 errno = errorno; 207 errno = errorno;
164 count++; 208 count++;
165 } 209 }
166 210
167 prv = req; 211 free_req (req);
168 req = req->next;
169 Safefree (prv);
170
171 /* TODO: croak on errors? */
172 } 212 }
173 213
174 return count; 214 return count;
175} 215}
176 216
… …
197} 237}
198 238
199static void 239static void
200send_req (aio_req req) 240send_req (aio_req req)
201{ 241{
242 while (started < wanted && nreqs >= started)
243 start_thread ();
244
202 nreqs++; 245 nreqs++;
203 246
204 pthread_mutex_lock (&reqlock); 247 pthread_mutex_lock (&reqlock);
205 248
206 req->next = 0; 249 req->next = 0;
… …
214 reqe = reqs = req; 257 reqe = reqs = req;
215 258
216 pthread_cond_signal (&reqwait); 259 pthread_cond_signal (&reqwait);
217 pthread_mutex_unlock (&reqlock); 260 pthread_mutex_unlock (&reqlock);
218 261
219 while (nreqs > max_outstanding) 262 if (nreqs > max_outstanding)
263 for (;;)
264 {
265 poll_cb ();
266
267 if (nreqs <= max_outstanding)
268 break;
269
270 poll_wait ();
271 }
272}
273
274static void
275end_thread (void)
276{
277 aio_req req;
278 Newz (0, req, 1, aio_cb);
279 req->type = REQ_QUIT;
280
281 send_req (req);
282}
283
284static void min_parallel (int nthreads)
285{
286 if (wanted < nthreads)
287 wanted = nthreads;
288}
289
290static void max_parallel (int nthreads)
291{
292 int cur = started;
293
294 if (wanted > nthreads)
295 wanted = nthreads;
296
297 while (cur > wanted)
298 {
299 end_thread ();
300 cur--;
301 }
302
303 while (started > wanted)
220 { 304 {
221 poll_wait (); 305 poll_wait ();
222 poll_cb (); 306 poll_cb ();
223 } 307 }
224} 308}
225 309
226static void 310static void create_pipe ()
227end_thread (void)
228{ 311{
312 if (pipe (respipe))
313 croak ("unable to initialize result pipe");
314
315 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
316 croak ("cannot set result pipe to nonblocking mode");
317
318 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
319 croak ("cannot set result pipe to nonblocking mode");
320}
321
322static void atfork_prepare (void)
323{
324 pthread_mutex_lock (&reqlock);
325 pthread_mutex_lock (&reslock);
326}
327
328static void atfork_parent (void)
329{
330 pthread_mutex_unlock (&reslock);
331 pthread_mutex_unlock (&reqlock);
332}
333
334static void atfork_child (void)
335{
229 aio_req req; 336 aio_req prv;
230 New (0, req, 1, aio_cb);
231 req->type = REQ_QUIT;
232 337
233 send_req (req); 338 started = 0;
339
340 while (reqs)
341 {
342 prv = reqs;
343 reqs = prv->next;
344 free_req (prv);
345 }
346
347 reqs = reqe = 0;
348
349 while (ress)
350 {
351 prv = ress;
352 ress = prv->next;
353 free_req (prv);
354 }
355
356 ress = rese = 0;
357
358 close (respipe [0]);
359 close (respipe [1]);
360 create_pipe ();
361
362 atfork_parent ();
234} 363}
364
365/*****************************************************************************/
366/* work around various missing functions */
367
368#if !HAVE_PREADWRITE
369# define pread aio_pread
370# define pwrite aio_pwrite
371
372/*
373 * make our pread/pwrite safe against themselves, but not against
374 * normal read/write by using a mutex. slows down execution a lot,
375 * but that's your problem, not mine.
376 */
377static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
378
379static ssize_t
380pread (int fd, void *buf, size_t count, off_t offset)
381{
382 ssize_t res;
383 off_t ooffset;
384
385 pthread_mutex_lock (&iolock);
386 ooffset = lseek (fd, 0, SEEK_CUR);
387 lseek (fd, offset, SEEK_SET);
388 res = read (fd, buf, count);
389 lseek (fd, ooffset, SEEK_SET);
390 pthread_mutex_unlock (&iolock);
391
392 return res;
393}
394
395static ssize_t
396pwrite (int fd, void *buf, size_t count, off_t offset)
397{
398 ssize_t res;
399 off_t ooffset;
400
401 pthread_mutex_lock (&iolock);
402 ooffset = lseek (fd, 0, SEEK_CUR);
403 lseek (fd, offset, SEEK_SET);
404 res = write (fd, buf, count);
405 lseek (fd, offset, SEEK_SET);
406 pthread_mutex_unlock (&iolock);
407
408 return res;
409}
410#endif
411
412#if !HAVE_FDATASYNC
413# define fdatasync fsync
414#endif
415
416#if !HAVE_READAHEAD
417# define readahead aio_readahead
418
419static char readahead_buf[4096];
420
421static ssize_t
422readahead (int fd, off_t offset, size_t count)
423{
424 while (count > 0)
425 {
426 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
427
428 pread (fd, readahead_buf, len, offset);
429 offset += len;
430 count -= len;
431 }
432
433 errno = 0;
434}
435#endif
436
437/* sendfile always needs emulation */
438static ssize_t
439sendfile_ (int ofd, int ifd, off_t offset, size_t count)
440{
441 ssize_t res;
442
443 if (!count)
444 return 0;
445
446#if HAVE_SENDFILE
447# if __linux
448 res = sendfile (ofd, ifd, &offset, count);
449
450# elif __freebsd
451 /*
452 * Of course, the freebsd sendfile is a dire hack with no thoughts
453 * wasted on making it similar to other I/O functions.
454 */
455 {
456 off_t sbytes;
457 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
458
459 if (res < 0 && sbytes)
460 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
461 res = sbytes;
462 }
463
464# elif __hpux
465 res = sendfile (ofd, ifd, offset, count, 0, 0);
466
467# elif __solaris
468 {
469 struct sendfilevec vec;
470 size_t sbytes;
471
472 vec.sfv_fd = ifd;
473 vec.sfv_flag = 0;
474 vec.sfv_off = offset;
475 vec.sfv_len = count;
476
477 res = sendfilev (ofd, &vec, 1, &sbytes);
478
479 if (res < 0 && sbytes)
480 res = sbytes;
481 }
482
483# else
484 res = -1;
485 errno = ENOSYS;
486# endif
487#endif
488
489 if (res < 0
490 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
491#if __solaris
492 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
493#endif
494 )
495 )
496 {
497 /* emulate sendfile. this is a major pain in the ass */
498 char *buf = malloc (4096);
499 res = 0;
500
501 for (;;)
502 {
503 ssize_t cnt;
504
505 cnt = pread (ifd, buf, 4096, offset);
506
507 if (cnt <= 0)
508 {
509 if (cnt && !res) res = -1;
510 break;
511 }
512
513 cnt = write (ofd, buf, cnt);
514
515 if (cnt <= 0)
516 {
517 if (cnt && !res) res = -1;
518 break;
519 }
520
521 offset += cnt;
522 res += cnt;
523 }
524
525 {
526 int errorno = errno;
527 free (buf);
528 errno = errorno;
529 }
530 }
531
532 return res;
533}
534
535/*****************************************************************************/
235 536
236static void * 537static void *
237aio_proc (void *thr_arg) 538aio_proc (void *thr_arg)
238{ 539{
239 aio_req req; 540 aio_req req;
… …
267 568
268 switch (type) 569 switch (type)
269 { 570 {
270 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 571 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
271 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 572 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
272#if SYS_readahead 573
273 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 574 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
274#else 575 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
275 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
276#endif
277 576
278 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 577 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
279 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 578 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
280 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 579 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
281 580
282 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 581 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
283 case REQ_CLOSE: req->result = close (req->fd); break; 582 case REQ_CLOSE: req->result = close (req->fd); break;
284 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 583 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
584 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
585 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
285 586
587 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
286 case REQ_FSYNC: req->result = fsync (req->fd); break; 588 case REQ_FSYNC: req->result = fsync (req->fd); break;
287 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
288 589
289 case REQ_QUIT: 590 case REQ_QUIT:
290 break; 591 break;
291 592
292 default: 593 default:
… …
318 while (type != REQ_QUIT); 619 while (type != REQ_QUIT);
319 620
320 return 0; 621 return 0;
321} 622}
322 623
624#define dREQ \
625 aio_req req; \
626 \
627 if (SvOK (callback) && !SvROK (callback)) \
628 croak ("clalback must be undef or of reference type"); \
629 \
630 Newz (0, req, 1, aio_cb); \
631 if (!req) \
632 croak ("out of memory during aio_req allocation"); \
633 \
634 req->callback = newSVsv (callback);
635
323MODULE = IO::AIO PACKAGE = IO::AIO 636MODULE = IO::AIO PACKAGE = IO::AIO
324 637
325PROTOTYPES: ENABLE 638PROTOTYPES: ENABLE
326 639
327BOOT: 640BOOT:
328{ 641{
329 if (pipe (respipe)) 642 create_pipe ();
330 croak ("unable to initialize result pipe"); 643 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
331
332 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
333 croak ("cannot set result pipe to nonblocking mode");
334
335 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
336 croak ("cannot set result pipe to nonblocking mode");
337} 644}
338 645
339void 646void
340min_parallel(nthreads) 647min_parallel(nthreads)
341 int nthreads 648 int nthreads
342 PROTOTYPE: $ 649 PROTOTYPE: $
343 CODE:
344 while (nthreads > started)
345 start_thread ();
346 650
347void 651void
348max_parallel(nthreads) 652max_parallel(nthreads)
349 int nthreads 653 int nthreads
350 PROTOTYPE: $ 654 PROTOTYPE: $
351 CODE:
352{
353 int cur = started;
354 while (cur > nthreads)
355 {
356 end_thread ();
357 cur--;
358 }
359
360 while (started > nthreads)
361 {
362 poll_wait ();
363 poll_cb ();
364 }
365}
366 655
367int 656int
368max_outstanding(nreqs) 657max_outstanding(nreqs)
369 int nreqs 658 int nreqs
370 PROTOTYPE: $ 659 PROTOTYPE: $
… …
379 int mode 668 int mode
380 SV * callback 669 SV * callback
381 PROTOTYPE: $$$;$ 670 PROTOTYPE: $$$;$
382 CODE: 671 CODE:
383{ 672{
384 aio_req req; 673 dREQ;
385
386 Newz (0, req, 1, aio_cb);
387
388 if (!req)
389 croak ("out of memory during aio_req allocation");
390 674
391 req->type = REQ_OPEN; 675 req->type = REQ_OPEN;
392 req->data = newSVsv (pathname); 676 req->data = newSVsv (pathname);
393 req->dataptr = SvPV_nolen (req->data); 677 req->dataptr = SvPVbyte_nolen (req->data);
394 req->fd = flags; 678 req->fd = flags;
395 req->mode = mode; 679 req->mode = mode;
396 req->callback = SvREFCNT_inc (callback);
397 680
398 send_req (req); 681 send_req (req);
399} 682}
400 683
401void 684void
… …
407 aio_close = REQ_CLOSE 690 aio_close = REQ_CLOSE
408 aio_fsync = REQ_FSYNC 691 aio_fsync = REQ_FSYNC
409 aio_fdatasync = REQ_FDATASYNC 692 aio_fdatasync = REQ_FDATASYNC
410 CODE: 693 CODE:
411{ 694{
412 aio_req req; 695 dREQ;
413
414 Newz (0, req, 1, aio_cb);
415
416 if (!req)
417 croak ("out of memory during aio_req allocation");
418 696
419 req->type = ix; 697 req->type = ix;
420 req->fh = newSVsv (fh); 698 req->fh = newSVsv (fh);
421 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 699 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
422 req->callback = SvREFCNT_inc (callback);
423 700
424 send_req (req); 701 send_req (req);
425} 702}
426 703
427void 704void
428aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 705aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
429 SV * fh 706 SV * fh
430 UV offset 707 UV offset
431 IV length 708 UV length
432 SV * data 709 SV * data
433 IV dataoffset 710 UV dataoffset
434 SV * callback 711 SV * callback
435 ALIAS: 712 ALIAS:
436 aio_read = REQ_READ 713 aio_read = REQ_READ
437 aio_write = REQ_WRITE 714 aio_write = REQ_WRITE
438 PROTOTYPE: $$$$$;$ 715 PROTOTYPE: $$$$$;$
439 CODE: 716 CODE:
440{ 717{
441 aio_req req; 718 aio_req req;
442 STRLEN svlen; 719 STRLEN svlen;
443 char *svptr = SvPV (data, svlen); 720 char *svptr = SvPVbyte (data, svlen);
444 721
445 SvUPGRADE (data, SVt_PV); 722 SvUPGRADE (data, SVt_PV);
446 SvPOK_on (data); 723 SvPOK_on (data);
447 724
448 if (dataoffset < 0) 725 if (dataoffset < 0)
… …
464 } 741 }
465 742
466 if (length < 0) 743 if (length < 0)
467 croak ("length must not be negative"); 744 croak ("length must not be negative");
468 745
469 Newz (0, req, 1, aio_cb); 746 {
747 dREQ;
470 748
471 if (!req)
472 croak ("out of memory during aio_req allocation");
473
474 req->type = ix; 749 req->type = ix;
475 req->fh = newSVsv (fh); 750 req->fh = newSVsv (fh);
476 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 751 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
477 : IoOFP (sv_2io (fh))); 752 : IoOFP (sv_2io (fh)));
478 req->offset = offset; 753 req->offset = offset;
754 req->length = length;
755 req->data = SvREFCNT_inc (data);
756 req->dataptr = (char *)svptr + dataoffset;
757
758 if (!SvREADONLY (data))
759 {
760 SvREADONLY_on (data);
761 req->data2ptr = (void *)data;
762 }
763
764 send_req (req);
765 }
766}
767
768void
769aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
770 SV * out_fh
771 SV * in_fh
772 UV in_offset
773 UV length
774 SV * callback
775 PROTOTYPE: $$$$;$
776 CODE:
777{
778 dREQ;
779
780 req->type = REQ_SENDFILE;
781 req->fh = newSVsv (out_fh);
782 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
783 req->fh2 = newSVsv (in_fh);
784 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
785 req->offset = in_offset;
479 req->length = length; 786 req->length = length;
480 req->data = SvREFCNT_inc (data);
481 req->dataptr = (char *)svptr + dataoffset;
482 req->callback = SvREFCNT_inc (callback);
483 787
484 send_req (req); 788 send_req (req);
485} 789}
486 790
487void 791void
… …
491 IV length 795 IV length
492 SV * callback 796 SV * callback
493 PROTOTYPE: $$$;$ 797 PROTOTYPE: $$$;$
494 CODE: 798 CODE:
495{ 799{
496 aio_req req; 800 dREQ;
497
498 if (length < 0)
499 croak ("length must not be negative");
500
501 Newz (0, req, 1, aio_cb);
502
503 if (!req)
504 croak ("out of memory during aio_req allocation");
505 801
506 req->type = REQ_READAHEAD; 802 req->type = REQ_READAHEAD;
507 req->fh = newSVsv (fh); 803 req->fh = newSVsv (fh);
508 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 804 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
509 req->offset = offset; 805 req->offset = offset;
510 req->length = length; 806 req->length = length;
511 req->callback = SvREFCNT_inc (callback);
512 807
513 send_req (req); 808 send_req (req);
514} 809}
515 810
516void 811void
… …
520 ALIAS: 815 ALIAS:
521 aio_stat = REQ_STAT 816 aio_stat = REQ_STAT
522 aio_lstat = REQ_LSTAT 817 aio_lstat = REQ_LSTAT
523 CODE: 818 CODE:
524{ 819{
525 aio_req req; 820 dREQ;
526
527 Newz (0, req, 1, aio_cb);
528
529 if (!req)
530 croak ("out of memory during aio_req allocation");
531 821
532 New (0, req->statdata, 1, Stat_t); 822 New (0, req->statdata, 1, Stat_t);
533
534 if (!req->statdata) 823 if (!req->statdata)
824 {
825 free_req (req);
535 croak ("out of memory during aio_req->statdata allocation"); 826 croak ("out of memory during aio_req->statdata allocation");
827 }
536 828
537 if (SvPOK (fh_or_path)) 829 if (SvPOK (fh_or_path))
538 { 830 {
539 req->type = ix; 831 req->type = ix;
540 req->data = newSVsv (fh_or_path); 832 req->data = newSVsv (fh_or_path);
541 req->dataptr = SvPV_nolen (req->data); 833 req->dataptr = SvPVbyte_nolen (req->data);
542 } 834 }
543 else 835 else
544 { 836 {
545 req->type = REQ_FSTAT; 837 req->type = REQ_FSTAT;
546 req->fh = newSVsv (fh_or_path); 838 req->fh = newSVsv (fh_or_path);
547 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 839 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
548 } 840 }
549 841
550 req->callback = SvREFCNT_inc (callback);
551
552 send_req (req); 842 send_req (req);
553} 843}
554 844
555void 845void
556aio_unlink(pathname,callback=&PL_sv_undef) 846aio_unlink(pathname,callback=&PL_sv_undef)
557 SV * pathname 847 SV * pathname
558 SV * callback 848 SV * callback
849 ALIAS:
850 aio_unlink = REQ_UNLINK
851 aio_rmdir = REQ_RMDIR
559 CODE: 852 CODE:
560{ 853{
561 aio_req req; 854 dREQ;
562 855
563 Newz (0, req, 1, aio_cb); 856 req->type = ix;
857 req->data = newSVsv (pathname);
858 req->dataptr = SvPVbyte_nolen (req->data);
564 859
565 if (!req) 860 send_req (req);
566 croak ("out of memory during aio_req allocation"); 861}
862
863void
864aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
865 SV * oldpath
866 SV * newpath
867 SV * callback
868 CODE:
869{
870 dREQ;
567 871
568 req->type = REQ_UNLINK; 872 req->type = REQ_SYMLINK;
873 req->fh = newSVsv (oldpath);
874 req->data2ptr = SvPVbyte_nolen (req->fh);
569 req->data = newSVsv (pathname); 875 req->data = newSVsv (newpath);
570 req->dataptr = SvPV_nolen (req->data); 876 req->dataptr = SvPVbyte_nolen (req->data);
571 req->callback = SvREFCNT_inc (callback);
572 877
573 send_req (req); 878 send_req (req);
574} 879}
575 880
576void 881void

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