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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.5 by root, Sun Jul 10 23:45:16 2005 UTC vs.
Revision 1.25 by root, Wed Aug 17 03:16:56 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"
4 7
8#include "autoconf/config.h"
9
5#include <sys/types.h> 10#include <sys/types.h>
6#include <sys/stat.h> 11#include <sys/stat.h>
12
7#include <unistd.h> 13#include <unistd.h>
8#include <fcntl.h> 14#include <fcntl.h>
9#include <signal.h> 15#include <signal.h>
10#include <sched.h> 16#include <sched.h>
11#include <endian.h>
12 17
13#include <pthread.h> 18#include <pthread.h>
14#include <sys/syscall.h>
15 19
16typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
17typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
18typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
19 23
… …
25 29
26enum { 30enum {
27 REQ_QUIT, 31 REQ_QUIT,
28 REQ_OPEN, REQ_CLOSE, 32 REQ_OPEN, REQ_CLOSE,
29 REQ_READ, REQ_WRITE, REQ_READAHEAD, 33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
30 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, 34 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
31 REQ_FSYNC, REQ_FDATASYNC, 35 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK,
32}; 38};
33 39
34typedef struct aio_cb { 40typedef struct aio_cb {
35 struct aio_cb *volatile next; 41 struct aio_cb *volatile next;
36 42
… …
40 off_t offset; 46 off_t offset;
41 size_t length; 47 size_t length;
42 ssize_t result; 48 ssize_t result;
43 mode_t mode; /* open */ 49 mode_t mode; /* open */
44 int errorno; 50 int errorno;
45 SV *data, *callback; 51 SV *data, *callback, *fh;
46 void *dataptr; 52 void *dataptr, *data2ptr;
47 STRLEN dataoffset; 53 STRLEN dataoffset;
48 54
49 Stat_t *statdata; 55 Stat_t *statdata;
50} aio_cb; 56} aio_cb;
51 57
52typedef aio_cb *aio_req; 58typedef aio_cb *aio_req;
53 59
54static int started; 60static int started;
55static int nreqs; 61static volatile int nreqs;
56static int max_outstanding = 1<<30; 62static int max_outstanding = 1<<30;
57static int respipe [2]; 63static int respipe [2];
58 64
59static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
60static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
61static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 68static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
62 69
63static volatile aio_req reqs, reqe; /* queue start, queue end */ 70static volatile aio_req reqs, reqe; /* queue start, queue end */
64static volatile aio_req ress, rese; /* queue start, queue end */ 71static volatile aio_req ress, rese; /* queue start, queue end */
65 72
66static void 73static void
67poll_wait () 74poll_wait ()
68{ 75{
69 if (!nreqs) 76 if (nreqs && !ress)
70 return; 77 {
71
72 fd_set rfd; 78 fd_set rfd;
73 FD_ZERO(&rfd); 79 FD_ZERO(&rfd);
74 FD_SET(respipe [0], &rfd); 80 FD_SET(respipe [0], &rfd);
75 81
76 select (respipe [0] + 1, &rfd, 0, 0, 0); 82 select (respipe [0] + 1, &rfd, 0, 0, 0);
83 }
77} 84}
78 85
79static int 86static int
80poll_cb () 87poll_cb ()
81{ 88{
82 dSP; 89 dSP;
83 int count = 0; 90 int count = 0;
91 int do_croak = 0;
84 aio_req req; 92 aio_req req, prv;
85 93
94 pthread_mutex_lock (&reslock);
95
86 { 96 {
87 /* read and signals sent by the worker threads */ 97 /* read any signals sent by the worker threads */
88 char buf [32]; 98 char buf [32];
89 while (read (respipe [0], buf, 32) > 0) 99 while (read (respipe [0], buf, 32) == 32)
90 ; 100 ;
91 } 101 }
92 102
93 for (;;) 103 req = ress;
104 ress = rese = 0;
105
106 pthread_mutex_unlock (&reslock);
107
108 while (req)
94 { 109 {
95 pthread_mutex_lock (&reslock);
96
97 req = ress;
98
99 if (ress)
100 {
101 ress = ress->next;
102 if (!ress) rese = 0;
103 }
104
105 pthread_mutex_unlock (&reslock);
106
107 if (!req)
108 break;
109
110 nreqs--; 110 nreqs--;
111 111
112 if (req->type == REQ_QUIT) 112 if (req->type == REQ_QUIT)
113 started--; 113 started--;
114 else 114 else
… …
121 + req->result > 0 ? req->result : 0); 121 + req->result > 0 ? req->result : 0);
122 122
123 if (req->data) 123 if (req->data)
124 SvREFCNT_dec (req->data); 124 SvREFCNT_dec (req->data);
125 125
126 if (req->fh)
127 SvREFCNT_dec (req->fh);
128
126 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)
127 { 130 {
128 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 131 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129 PL_laststatval = req->result; 132 PL_laststatval = req->result;
130 PL_statcache = *(req->statdata); 133 PL_statcache = *(req->statdata);
131 134
132 Safefree (req->statdata); 135 Safefree (req->statdata);
133 } 136 }
134 137
138 ENTER;
135 PUSHMARK (SP); 139 PUSHMARK (SP);
136 XPUSHs (sv_2mortal (newSViv (req->result))); 140 XPUSHs (sv_2mortal (newSViv (req->result)));
137 141
138 if (req->type == REQ_OPEN) 142 if (req->type == REQ_OPEN)
139 { 143 {
… …
142 146
143 PUTBACK; 147 PUTBACK;
144 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 148 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
145 SPAGAIN; 149 SPAGAIN;
146 150
147 fh = POPs; 151 fh = SvREFCNT_inc (POPs);
148 152
149 PUSHMARK (SP); 153 PUSHMARK (SP);
150 XPUSHs (fh); 154 XPUSHs (sv_2mortal (fh));
151 } 155 }
152 156
157 if (SvOK (req->callback))
158 {
153 PUTBACK; 159 PUTBACK;
154 call_sv (req->callback, G_VOID | G_EVAL); 160 call_sv (req->callback, G_VOID | G_EVAL);
155 SPAGAIN; 161 SPAGAIN;
162 }
163
164 do_croak = SvTRUE (ERRSV);
165
166 LEAVE;
156 167
157 if (req->callback) 168 if (req->callback)
158 SvREFCNT_dec (req->callback); 169 SvREFCNT_dec (req->callback);
159 170
160 errno = errorno; 171 errno = errorno;
161 count++; 172 count++;
162 } 173 }
163 174
175 prv = req;
176 req = req->next;
164 Safefree (req); 177 Safefree (prv);
178
179 if (do_croak)
180 croak (0);
165 } 181 }
166 182
167 return count; 183 return count;
168} 184}
169 185
… …
224 req->type = REQ_QUIT; 240 req->type = REQ_QUIT;
225 241
226 send_req (req); 242 send_req (req);
227} 243}
228 244
229static void
230read_write (int dowrite, int fd, off_t offset, size_t length,
231 SV *data, STRLEN dataoffset, SV *callback)
232{
233 aio_req req;
234 STRLEN svlen;
235 char *svptr = SvPV (data, svlen);
236 245
237 SvUPGRADE (data, SVt_PV); 246static void min_parallel (int nthreads)
238 SvPOK_on (data); 247{
248 while (nthreads > started)
249 start_thread ();
250}
239 251
240 if (dataoffset < 0) 252static void max_parallel (int nthreads)
241 dataoffset += svlen; 253{
254 int cur = started;
255 while (cur > nthreads)
256 {
257 end_thread ();
258 cur--;
259 }
242 260
243 if (dataoffset < 0 || dataoffset > svlen) 261 while (started > nthreads)
244 croak ("data offset outside of string");
245
246 if (dowrite)
247 { 262 {
248 /* write: check length and adjust. */ 263 poll_wait ();
249 if (length < 0 || length + dataoffset > svlen) 264 poll_cb ();
250 length = svlen - dataoffset;
251 } 265 }
252 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)
253 { 375 {
254 /* read: grow scalar as necessary */ 376 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
255 svptr = SvGROW (data, length + dataoffset); 377
378 pread (fd, readahead_buf, len, offset);
379 offset += len;
380 count -= len;
256 } 381 }
257 382
258 if (length < 0) 383 errno = 0;
259 croak ("length must not be negative");
260
261 Newz (0, req, 1, aio_cb);
262
263 if (!req)
264 croak ("out of memory during aio_req allocation");
265
266 req->type = dowrite ? REQ_WRITE : REQ_READ;
267 req->fd = fd;
268 req->offset = offset;
269 req->length = length;
270 req->data = SvREFCNT_inc (data);
271 req->dataptr = (char *)svptr + dataoffset;
272 req->callback = SvREFCNT_inc (callback);
273
274 send_req (req);
275} 384}
385#endif
386
387/*****************************************************************************/
276 388
277static void * 389static void *
278aio_proc (void *thr_arg) 390aio_proc (void *thr_arg)
279{ 391{
280 aio_req req; 392 aio_req req;
… …
306 418
307 type = req->type; 419 type = req->type;
308 420
309 switch (type) 421 switch (type)
310 { 422 {
311 case REQ_READ: req->result = pread64 (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;
312 case REQ_WRITE: req->result = pwrite64 (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;
313#if SYS_readahead 425
314 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;
315#else
316 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
317#endif
318 427
319 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 428 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
320 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 429 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
321 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 430 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
322 431
323 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;
324 case REQ_CLOSE: req->result = close (req->fd); break; 433 case REQ_CLOSE: req->result = close (req->fd); break;
325 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;
326 437
438 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
327 case REQ_FSYNC: req->result = fsync (req->fd); break; 439 case REQ_FSYNC: req->result = fsync (req->fd); break;
328 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
329 440
330 case REQ_QUIT: 441 case REQ_QUIT:
331 break; 442 break;
332 443
333 default: 444 default:
… …
359 while (type != REQ_QUIT); 470 while (type != REQ_QUIT);
360 471
361 return 0; 472 return 0;
362} 473}
363 474
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
364MODULE = IO::AIO PACKAGE = IO::AIO 487MODULE = IO::AIO PACKAGE = IO::AIO
488
489PROTOTYPES: ENABLE
365 490
366BOOT: 491BOOT:
367{ 492{
368 if (pipe (respipe)) 493 if (pipe (respipe))
369 croak ("unable to initialize result pipe"); 494 croak ("unable to initialize result pipe");
… …
371 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 496 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
372 croak ("cannot set result pipe to nonblocking mode"); 497 croak ("cannot set result pipe to nonblocking mode");
373 498
374 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 499 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
375 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);
376} 503}
377 504
378void 505void
379min_parallel(nthreads) 506min_parallel(nthreads)
380 int nthreads 507 int nthreads
381 PROTOTYPE: $ 508 PROTOTYPE: $
382 CODE:
383 while (nthreads > started)
384 start_thread ();
385 509
386void 510void
387max_parallel(nthreads) 511max_parallel(nthreads)
388 int nthreads 512 int nthreads
389 PROTOTYPE: $ 513 PROTOTYPE: $
390 CODE:
391{
392 int cur = started;
393 while (cur > nthreads)
394 {
395 end_thread ();
396 cur--;
397 }
398
399 while (started > nthreads)
400 {
401 poll_wait ();
402 poll_cb ();
403 }
404}
405 514
406int 515int
407max_outstanding(nreqs) 516max_outstanding(nreqs)
408 int nreqs 517 int nreqs
409 PROTOTYPE: $ 518 PROTOTYPE: $
410 CODE: 519 CODE:
411 RETVAL = max_outstanding; 520 RETVAL = max_outstanding;
412 max_outstanding = nreqs; 521 max_outstanding = nreqs;
413 522
414void 523void
415aio_open(pathname,flags,mode,callback) 524aio_open(pathname,flags,mode,callback=&PL_sv_undef)
416 SV * pathname 525 SV * pathname
417 int flags 526 int flags
418 int mode 527 int mode
419 SV * callback 528 SV * callback
420 PROTOTYPE: $$$$ 529 PROTOTYPE: $$$;$
421 CODE: 530 CODE:
422{ 531{
423 aio_req req; 532 dREQ;
424
425 Newz (0, req, 1, aio_cb);
426
427 if (!req)
428 croak ("out of memory during aio_req allocation");
429 533
430 req->type = REQ_OPEN; 534 req->type = REQ_OPEN;
431 req->data = newSVsv (pathname); 535 req->data = newSVsv (pathname);
432 req->dataptr = SvPV_nolen (req->data); 536 req->dataptr = SvPVbyte_nolen (req->data);
433 req->fd = flags; 537 req->fd = flags;
434 req->mode = mode; 538 req->mode = mode;
435 req->callback = SvREFCNT_inc (callback);
436 539
437 send_req (req); 540 send_req (req);
438} 541}
439 542
440void 543void
441aio_close(fh,callback) 544aio_close(fh,callback=&PL_sv_undef)
442 InputStream fh 545 SV * fh
443 SV * callback 546 SV * callback
444 PROTOTYPE: $$ 547 PROTOTYPE: $;$
445 ALIAS: 548 ALIAS:
446 aio_close = REQ_CLOSE 549 aio_close = REQ_CLOSE
447 aio_fsync = REQ_FSYNC 550 aio_fsync = REQ_FSYNC
448 aio_fdatasync = REQ_FDATASYNC 551 aio_fdatasync = REQ_FDATASYNC
449 CODE: 552 CODE:
450{ 553{
554 dREQ;
555
556 req->type = ix;
557 req->fh = newSVsv (fh);
558 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
559
560 send_req (req);
561}
562
563void
564aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
565 SV * fh
566 UV offset
567 IV length
568 SV * data
569 IV dataoffset
570 SV * callback
571 ALIAS:
572 aio_read = REQ_READ
573 aio_write = REQ_WRITE
574 PROTOTYPE: $$$$$;$
575 CODE:
576{
451 aio_req req; 577 aio_req req;
578 STRLEN svlen;
579 char *svptr = SvPVbyte (data, svlen);
452 580
453 Newz (0, req, 1, aio_cb); 581 SvUPGRADE (data, SVt_PV);
582 SvPOK_on (data);
454 583
455 if (!req) 584 if (dataoffset < 0)
456 croak ("out of memory during aio_req allocation"); 585 dataoffset += svlen;
457 586
458 req->type = ix; 587 if (dataoffset < 0 || dataoffset > svlen)
459 req->fd = PerlIO_fileno (fh); 588 croak ("data offset outside of string");
460 req->callback = SvREFCNT_inc (callback);
461 589
462 send_req (req); 590 if (ix == REQ_WRITE)
463} 591 {
464 592 /* write: check length and adjust. */
465void 593 if (length < 0 || length + dataoffset > svlen)
466aio_read(fh,offset,length,data,dataoffset,callback) 594 length = svlen - dataoffset;
467 InputStream fh 595 }
468 UV offset 596 else
469 IV length 597 {
470 SV * data 598 /* read: grow scalar as necessary */
471 IV dataoffset 599 svptr = SvGROW (data, length + dataoffset);
472 SV * callback 600 }
473 PROTOTYPE: $$$$$$
474 CODE:
475 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
476
477void
478aio_write(fh,offset,length,data,dataoffset,callback)
479 OutputStream fh
480 UV offset
481 IV length
482 SV * data
483 IV dataoffset
484 SV * callback
485 PROTOTYPE: $$$$$$
486 CODE:
487 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
488
489void
490aio_readahead(fh,offset,length,callback)
491 InputStream fh
492 UV offset
493 IV length
494 SV * callback
495 PROTOTYPE: $$$$
496 CODE:
497{
498 aio_req req;
499 601
500 if (length < 0) 602 if (length < 0)
501 croak ("length must not be negative"); 603 croak ("length must not be negative");
502 604
503 Newz (0, req, 1, aio_cb); 605 {
606 dREQ;
504 607
505 if (!req) 608 req->type = ix;
506 croak ("out of memory during aio_req allocation"); 609 req->fh = newSVsv (fh);
610 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
611 : IoOFP (sv_2io (fh)));
612 req->offset = offset;
613 req->length = length;
614 req->data = SvREFCNT_inc (data);
615 req->dataptr = (char *)svptr + dataoffset;
616 req->callback = SvREFCNT_inc (callback);
617
618 send_req (req);
619 }
620}
621
622void
623aio_readahead(fh,offset,length,callback=&PL_sv_undef)
624 SV * fh
625 UV offset
626 IV length
627 SV * callback
628 PROTOTYPE: $$$;$
629 CODE:
630{
631 dREQ;
507 632
508 req->type = REQ_READAHEAD; 633 req->type = REQ_READAHEAD;
634 req->fh = newSVsv (fh);
509 req->fd = PerlIO_fileno (fh); 635 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
510 req->offset = offset; 636 req->offset = offset;
511 req->length = length; 637 req->length = length;
512 req->callback = SvREFCNT_inc (callback);
513 638
514 send_req (req); 639 send_req (req);
515} 640}
516 641
517void 642void
518aio_stat(fh_or_path,callback) 643aio_stat(fh_or_path,callback=&PL_sv_undef)
519 SV * fh_or_path 644 SV * fh_or_path
520 SV * callback 645 SV * callback
521 PROTOTYPE: $$
522 ALIAS: 646 ALIAS:
647 aio_stat = REQ_STAT
523 aio_lstat = 1 648 aio_lstat = REQ_LSTAT
524 CODE: 649 CODE:
525{ 650{
526 aio_req req; 651 dREQ;
527
528 Newz (0, req, 1, aio_cb);
529
530 if (!req)
531 croak ("out of memory during aio_req allocation");
532 652
533 New (0, req->statdata, 1, Stat_t); 653 New (0, req->statdata, 1, Stat_t);
534
535 if (!req->statdata) 654 if (!req->statdata)
536 croak ("out of memory during aio_req->statdata allocation"); 655 croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");
537 656
538 if (SvPOK (fh_or_path)) 657 if (SvPOK (fh_or_path))
539 { 658 {
540 req->type = ix ? REQ_LSTAT : REQ_STAT; 659 req->type = ix;
541 req->data = newSVsv (fh_or_path); 660 req->data = newSVsv (fh_or_path);
542 req->dataptr = SvPV_nolen (req->data); 661 req->dataptr = SvPVbyte_nolen (req->data);
543 } 662 }
544 else 663 else
545 { 664 {
546 req->type = REQ_FSTAT; 665 req->type = REQ_FSTAT;
666 req->fh = newSVsv (fh_or_path);
547 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 667 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
548 } 668 }
549 669
550 req->callback = SvREFCNT_inc (callback);
551
552 send_req (req); 670 send_req (req);
553} 671}
554 672
555void 673void
556aio_unlink(pathname,callback) 674aio_unlink(pathname,callback=&PL_sv_undef)
557 SV * pathname 675 SV * pathname
558 SV * callback 676 SV * callback
559 PROTOTYPE: $$ 677 ALIAS:
678 aio_unlink = REQ_UNLINK
679 aio_rmdir = REQ_RMDIR
560 CODE: 680 CODE:
561{ 681{
562 aio_req req; 682 dREQ;
563 683
564 Newz (0, req, 1, aio_cb); 684 req->type = ix;
565
566 if (!req)
567 croak ("out of memory during aio_req allocation");
568
569 req->type = REQ_UNLINK;
570 req->data = newSVsv (pathname); 685 req->data = newSVsv (pathname);
571 req->dataptr = SvPV_nolen (req->data); 686 req->dataptr = SvPVbyte_nolen (req->data);
572 req->callback = SvREFCNT_inc (callback);
573 687
574 send_req (req); 688 send_req (req);
575} 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;
699
700 req->type = REQ_SYMLINK;
701 req->fh = newSVsv (oldpath);
702 req->data2ptr = SvPVbyte_nolen (req->fh);
703 req->data = newSVsv (newpath);
704 req->dataptr = SvPVbyte_nolen (req->data);
705
706 send_req (req);
707}
708
709void
710flush()
711 PROTOTYPE:
712 CODE:
713 while (nreqs)
714 {
715 poll_wait ();
716 poll_cb ();
717 }
718
719void
720poll()
721 PROTOTYPE:
722 CODE:
723 if (nreqs)
724 {
725 poll_wait ();
726 poll_cb ();
727 }
576 728
577int 729int
578poll_fileno() 730poll_fileno()
579 PROTOTYPE: 731 PROTOTYPE:
580 CODE: 732 CODE:

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