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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.14 by root, Sat Jul 23 18:15:36 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
4#include "EXTERN.h"
1#include "perl.h" 5#include "perl.h"
2#include "XSUB.h" 6#include "XSUB.h"
7
8#include "autoconf/config.h"
9
10#include <pthread.h>
3 11
4#include <sys/types.h> 12#include <sys/types.h>
5#include <sys/stat.h> 13#include <sys/stat.h>
6 14
7#include <unistd.h> 15#include <unistd.h>
8#include <fcntl.h> 16#include <fcntl.h>
9#include <signal.h> 17#include <signal.h>
10#include <sched.h> 18#include <sched.h>
19
20#if HAVE_SENDFILE
11#if __linux 21# if __linux
22# include <sys/sendfile.h>
23# elif __freebsd
12#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
13#endif 33#endif
14
15#include <pthread.h>
16
17typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
18typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
19typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
20 34
21#if __ia64 35#if __ia64
22# define STACKSIZE 65536 36# define STACKSIZE 65536
23#else 37#else
24# define STACKSIZE 4096 38# define STACKSIZE 4096
… …
26 40
27enum { 41enum {
28 REQ_QUIT, 42 REQ_QUIT,
29 REQ_OPEN, REQ_CLOSE, 43 REQ_OPEN, REQ_CLOSE,
30 REQ_READ, REQ_WRITE, REQ_READAHEAD, 44 REQ_READ, REQ_WRITE, REQ_READAHEAD,
45 REQ_SENDFILE,
31 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, 46 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
32 REQ_FSYNC, REQ_FDATASYNC, 47 REQ_FSYNC, REQ_FDATASYNC,
48 REQ_UNLINK, REQ_RMDIR,
49 REQ_SYMLINK,
33}; 50};
34 51
35typedef struct aio_cb { 52typedef struct aio_cb {
36 struct aio_cb *volatile next; 53 struct aio_cb *volatile next;
37 54
38 int type; 55 int type;
39 56
40 int fd; 57 int fd, fd2;
41 off_t offset; 58 off_t offset;
42 size_t length; 59 size_t length;
43 ssize_t result; 60 ssize_t result;
44 mode_t mode; /* open */ 61 mode_t mode; /* open */
45 int errorno; 62 int errorno;
46 SV *data, *callback, *fh; 63 SV *data, *callback;
47 void *dataptr; 64 SV *fh, *fh2;
65 void *dataptr, *data2ptr;
48 STRLEN dataoffset; 66 STRLEN dataoffset;
49 67
50 Stat_t *statdata; 68 Stat_t *statdata;
51} aio_cb; 69} aio_cb;
52 70
53typedef aio_cb *aio_req; 71typedef aio_cb *aio_req;
54 72
55static int started; 73static int started, wanted;
56static volatile int nreqs; 74static volatile int nreqs;
57static int max_outstanding = 1<<30; 75static int max_outstanding = 1<<30;
58static int respipe [2]; 76static int respipe [2];
59 77
60static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 78static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
61static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 79static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
62static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 80static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
63 81
64static volatile aio_req reqs, reqe; /* queue start, queue end */ 82static volatile aio_req reqs, reqe; /* queue start, queue end */
65static 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}
66 104
67static void 105static void
68poll_wait () 106poll_wait ()
69{ 107{
70 if (nreqs && !ress) 108 if (nreqs && !ress)
… …
80static int 118static int
81poll_cb () 119poll_cb ()
82{ 120{
83 dSP; 121 dSP;
84 int count = 0; 122 int count = 0;
123 int do_croak = 0;
85 aio_req req, prv; 124 aio_req req;
86 125
87 pthread_mutex_lock (&reslock); 126 for (;;)
88
89 {
90 /* read any signals sent by the worker threads */
91 char buf [32];
92 while (read (respipe [0], buf, 32) > 0)
93 ;
94 }
95
96 req = ress;
97 ress = rese = 0;
98
99 pthread_mutex_unlock (&reslock);
100
101 while (req)
102 { 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
103 nreqs--; 151 nreqs--;
104 152
105 if (req->type == REQ_QUIT) 153 if (req->type == REQ_QUIT)
106 started--; 154 started--;
107 else 155 else
108 { 156 {
109 int errorno = errno; 157 int errorno = errno;
110 errno = req->errorno; 158 errno = req->errorno;
111 159
112 if (req->type == REQ_READ) 160 if (req->type == REQ_READ)
113 SvCUR_set (req->data, req->dataoffset 161 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
114 + req->result > 0 ? req->result : 0);
115 162
163 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
164 SvREADONLY_off (req->data);
165
116 if (req->data) 166 if (req->statdata)
117 SvREFCNT_dec (req->data);
118
119 if (req->fh)
120 SvREFCNT_dec (req->fh);
121
122 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
123 { 167 {
124 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 168 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125 PL_laststatval = req->result; 169 PL_laststatval = req->result;
126 PL_statcache = *(req->statdata); 170 PL_statcache = *(req->statdata);
127
128 Safefree (req->statdata);
129 } 171 }
130 172
131 ENTER; 173 ENTER;
132 PUSHMARK (SP); 174 PUSHMARK (SP);
133 XPUSHs (sv_2mortal (newSViv (req->result))); 175 XPUSHs (sv_2mortal (newSViv (req->result)));
… …
150 if (SvOK (req->callback)) 192 if (SvOK (req->callback))
151 { 193 {
152 PUTBACK; 194 PUTBACK;
153 call_sv (req->callback, G_VOID | G_EVAL); 195 call_sv (req->callback, G_VOID | G_EVAL);
154 SPAGAIN; 196 SPAGAIN;
197
198 if (SvTRUE (ERRSV))
199 {
200 free_req (req);
201 croak (0);
202 }
155 } 203 }
156 204
157 LEAVE; 205 LEAVE;
158
159 if (req->callback)
160 SvREFCNT_dec (req->callback);
161 206
162 errno = errorno; 207 errno = errorno;
163 count++; 208 count++;
164 } 209 }
165 210
166 prv = req; 211 free_req (req);
167 req = req->next;
168 Safefree (prv);
169
170 /* TODO: croak on errors? */
171 } 212 }
172 213
173 return count; 214 return count;
174} 215}
175 216
… …
196} 237}
197 238
198static void 239static void
199send_req (aio_req req) 240send_req (aio_req req)
200{ 241{
242 while (started < wanted && nreqs >= started)
243 start_thread ();
244
201 nreqs++; 245 nreqs++;
202 246
203 pthread_mutex_lock (&reqlock); 247 pthread_mutex_lock (&reqlock);
204 248
205 req->next = 0; 249 req->next = 0;
… …
213 reqe = reqs = req; 257 reqe = reqs = req;
214 258
215 pthread_cond_signal (&reqwait); 259 pthread_cond_signal (&reqwait);
216 pthread_mutex_unlock (&reqlock); 260 pthread_mutex_unlock (&reqlock);
217 261
218 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)
219 { 304 {
220 poll_wait (); 305 poll_wait ();
221 poll_cb (); 306 poll_cb ();
222 } 307 }
223} 308}
224 309
225static void 310static void create_pipe ()
226end_thread (void)
227{ 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{
228 aio_req req; 336 aio_req prv;
229 New (0, req, 1, aio_cb);
230 req->type = REQ_QUIT;
231 337
232 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 ();
233} 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/*****************************************************************************/
234 536
235static void * 537static void *
236aio_proc (void *thr_arg) 538aio_proc (void *thr_arg)
237{ 539{
238 aio_req req; 540 aio_req req;
… …
266 568
267 switch (type) 569 switch (type)
268 { 570 {
269 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;
270 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;
271#if SYS_readahead 573
272 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;
273#else 575 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
274 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
275#endif
276 576
277 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 577 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
278 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 578 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
279 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 579 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
280 580
281 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;
282 case REQ_CLOSE: req->result = close (req->fd); break; 582 case REQ_CLOSE: req->result = close (req->fd); break;
283 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;
284 586
587 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
285 case REQ_FSYNC: req->result = fsync (req->fd); break; 588 case REQ_FSYNC: req->result = fsync (req->fd); break;
286 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
287 589
288 case REQ_QUIT: 590 case REQ_QUIT:
289 break; 591 break;
290 592
291 default: 593 default:
… …
317 while (type != REQ_QUIT); 619 while (type != REQ_QUIT);
318 620
319 return 0; 621 return 0;
320} 622}
321 623
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
322MODULE = IO::AIO PACKAGE = IO::AIO 636MODULE = IO::AIO PACKAGE = IO::AIO
323 637
324PROTOTYPES: ENABLE 638PROTOTYPES: ENABLE
325 639
326BOOT: 640BOOT:
327{ 641{
328 if (pipe (respipe)) 642 create_pipe ();
329 croak ("unable to initialize result pipe"); 643 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
330
331 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
332 croak ("cannot set result pipe to nonblocking mode");
333
334 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
335 croak ("cannot set result pipe to nonblocking mode");
336} 644}
337 645
338void 646void
339min_parallel(nthreads) 647min_parallel(nthreads)
340 int nthreads 648 int nthreads
341 PROTOTYPE: $ 649 PROTOTYPE: $
342 CODE:
343 while (nthreads > started)
344 start_thread ();
345 650
346void 651void
347max_parallel(nthreads) 652max_parallel(nthreads)
348 int nthreads 653 int nthreads
349 PROTOTYPE: $ 654 PROTOTYPE: $
350 CODE:
351{
352 int cur = started;
353 while (cur > nthreads)
354 {
355 end_thread ();
356 cur--;
357 }
358
359 while (started > nthreads)
360 {
361 poll_wait ();
362 poll_cb ();
363 }
364}
365 655
366int 656int
367max_outstanding(nreqs) 657max_outstanding(nreqs)
368 int nreqs 658 int nreqs
369 PROTOTYPE: $ 659 PROTOTYPE: $
… …
378 int mode 668 int mode
379 SV * callback 669 SV * callback
380 PROTOTYPE: $$$;$ 670 PROTOTYPE: $$$;$
381 CODE: 671 CODE:
382{ 672{
383 aio_req req; 673 dREQ;
384
385 Newz (0, req, 1, aio_cb);
386
387 if (!req)
388 croak ("out of memory during aio_req allocation");
389 674
390 req->type = REQ_OPEN; 675 req->type = REQ_OPEN;
391 req->data = newSVsv (pathname); 676 req->data = newSVsv (pathname);
392 req->dataptr = SvPV_nolen (req->data); 677 req->dataptr = SvPVbyte_nolen (req->data);
393 req->fd = flags; 678 req->fd = flags;
394 req->mode = mode; 679 req->mode = mode;
395 req->callback = SvREFCNT_inc (callback);
396 680
397 send_req (req); 681 send_req (req);
398} 682}
399 683
400void 684void
… …
406 aio_close = REQ_CLOSE 690 aio_close = REQ_CLOSE
407 aio_fsync = REQ_FSYNC 691 aio_fsync = REQ_FSYNC
408 aio_fdatasync = REQ_FDATASYNC 692 aio_fdatasync = REQ_FDATASYNC
409 CODE: 693 CODE:
410{ 694{
411 aio_req req; 695 dREQ;
412
413 Newz (0, req, 1, aio_cb);
414
415 if (!req)
416 croak ("out of memory during aio_req allocation");
417 696
418 req->type = ix; 697 req->type = ix;
419 req->fh = newSVsv (fh); 698 req->fh = newSVsv (fh);
420 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 699 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
421 req->callback = SvREFCNT_inc (callback);
422 700
423 send_req (req); 701 send_req (req);
424} 702}
425 703
426void 704void
427aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 705aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
428 SV * fh 706 SV * fh
429 UV offset 707 UV offset
430 IV length 708 UV length
431 SV * data 709 SV * data
432 IV dataoffset 710 UV dataoffset
433 SV * callback 711 SV * callback
434 ALIAS: 712 ALIAS:
435 aio_read = REQ_READ 713 aio_read = REQ_READ
436 aio_write = REQ_WRITE 714 aio_write = REQ_WRITE
437 PROTOTYPE: $$$$$;$ 715 PROTOTYPE: $$$$$;$
438 CODE: 716 CODE:
439{ 717{
440 aio_req req; 718 aio_req req;
441 STRLEN svlen; 719 STRLEN svlen;
442 char *svptr = SvPV (data, svlen); 720 char *svptr = SvPVbyte (data, svlen);
443 721
444 SvUPGRADE (data, SVt_PV); 722 SvUPGRADE (data, SVt_PV);
445 SvPOK_on (data); 723 SvPOK_on (data);
446 724
447 if (dataoffset < 0) 725 if (dataoffset < 0)
… …
463 } 741 }
464 742
465 if (length < 0) 743 if (length < 0)
466 croak ("length must not be negative"); 744 croak ("length must not be negative");
467 745
468 Newz (0, req, 1, aio_cb); 746 {
747 dREQ;
469 748
470 if (!req)
471 croak ("out of memory during aio_req allocation");
472
473 req->type = ix; 749 req->type = ix;
474 req->fh = newSVsv (fh); 750 req->fh = newSVsv (fh);
475 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 751 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
476 : IoOFP (sv_2io (fh))); 752 : IoOFP (sv_2io (fh)));
477 req->offset = offset; 753 req->offset = offset;
754 req->length = length;
755 req->data = SvREFCNT_inc (data);
756 req->dataptr = (char *)svptr + dataoffset;
757
758 if (!SvREADONLY (data))
759 {
760 SvREADONLY_on (data);
761 req->data2ptr = (void *)data;
762 }
763
764 send_req (req);
765 }
766}
767
768void
769aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
770 SV * out_fh
771 SV * in_fh
772 UV in_offset
773 UV length
774 SV * callback
775 PROTOTYPE: $$$$;$
776 CODE:
777{
778 dREQ;
779
780 req->type = REQ_SENDFILE;
781 req->fh = newSVsv (out_fh);
782 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
783 req->fh2 = newSVsv (in_fh);
784 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
785 req->offset = in_offset;
478 req->length = length; 786 req->length = length;
479 req->data = SvREFCNT_inc (data);
480 req->dataptr = (char *)svptr + dataoffset;
481 req->callback = SvREFCNT_inc (callback);
482 787
483 send_req (req); 788 send_req (req);
484} 789}
485 790
486void 791void
… …
490 IV length 795 IV length
491 SV * callback 796 SV * callback
492 PROTOTYPE: $$$;$ 797 PROTOTYPE: $$$;$
493 CODE: 798 CODE:
494{ 799{
495 aio_req req; 800 dREQ;
496
497 if (length < 0)
498 croak ("length must not be negative");
499
500 Newz (0, req, 1, aio_cb);
501
502 if (!req)
503 croak ("out of memory during aio_req allocation");
504 801
505 req->type = REQ_READAHEAD; 802 req->type = REQ_READAHEAD;
506 req->fh = newSVsv (fh); 803 req->fh = newSVsv (fh);
507 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 804 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
508 req->offset = offset; 805 req->offset = offset;
509 req->length = length; 806 req->length = length;
510 req->callback = SvREFCNT_inc (callback);
511 807
512 send_req (req); 808 send_req (req);
513} 809}
514 810
515void 811void
… …
519 ALIAS: 815 ALIAS:
520 aio_stat = REQ_STAT 816 aio_stat = REQ_STAT
521 aio_lstat = REQ_LSTAT 817 aio_lstat = REQ_LSTAT
522 CODE: 818 CODE:
523{ 819{
524 aio_req req; 820 dREQ;
525
526 Newz (0, req, 1, aio_cb);
527
528 if (!req)
529 croak ("out of memory during aio_req allocation");
530 821
531 New (0, req->statdata, 1, Stat_t); 822 New (0, req->statdata, 1, Stat_t);
532
533 if (!req->statdata) 823 if (!req->statdata)
824 {
825 free_req (req);
534 croak ("out of memory during aio_req->statdata allocation"); 826 croak ("out of memory during aio_req->statdata allocation");
827 }
535 828
536 if (SvPOK (fh_or_path)) 829 if (SvPOK (fh_or_path))
537 { 830 {
538 req->type = ix; 831 req->type = ix;
539 req->data = newSVsv (fh_or_path); 832 req->data = newSVsv (fh_or_path);
540 req->dataptr = SvPV_nolen (req->data); 833 req->dataptr = SvPVbyte_nolen (req->data);
541 } 834 }
542 else 835 else
543 { 836 {
544 req->type = REQ_FSTAT; 837 req->type = REQ_FSTAT;
545 req->fh = newSVsv (fh_or_path); 838 req->fh = newSVsv (fh_or_path);
546 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 839 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
547 } 840 }
548 841
549 req->callback = SvREFCNT_inc (callback);
550
551 send_req (req); 842 send_req (req);
552} 843}
553 844
554void 845void
555aio_unlink(pathname,callback=&PL_sv_undef) 846aio_unlink(pathname,callback=&PL_sv_undef)
556 SV * pathname 847 SV * pathname
557 SV * callback 848 SV * callback
849 ALIAS:
850 aio_unlink = REQ_UNLINK
851 aio_rmdir = REQ_RMDIR
558 CODE: 852 CODE:
559{ 853{
560 aio_req req; 854 dREQ;
561 855
562 Newz (0, req, 1, aio_cb); 856 req->type = ix;
857 req->data = newSVsv (pathname);
858 req->dataptr = SvPVbyte_nolen (req->data);
563 859
564 if (!req) 860 send_req (req);
565 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;
566 871
567 req->type = REQ_UNLINK; 872 req->type = REQ_SYMLINK;
873 req->fh = newSVsv (oldpath);
874 req->data2ptr = SvPVbyte_nolen (req->fh);
568 req->data = newSVsv (pathname); 875 req->data = newSVsv (newpath);
569 req->dataptr = SvPV_nolen (req->data); 876 req->dataptr = SvPVbyte_nolen (req->data);
570 req->callback = SvREFCNT_inc (callback);
571 877
572 send_req (req); 878 send_req (req);
573} 879}
574 880
575void 881void

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