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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.4 by root, Sun Jul 10 20:57:00 2005 UTC vs.
Revision 1.16 by root, Sun Jul 31 18:20:07 2005 UTC

1#define PERL_NO_GET_CONTEXT
2
3#include "EXTERN.h" 1#include "EXTERN.h"
4#include "perl.h" 2#include "perl.h"
5#include "XSUB.h" 3#include "XSUB.h"
6 4
5#include "autoconf/config.h"
6
7#include <sys/types.h> 7#include <sys/types.h>
8#include <sys/stat.h> 8#include <sys/stat.h>
9
9#include <unistd.h> 10#include <unistd.h>
10#include <fcntl.h> 11#include <fcntl.h>
11#include <signal.h> 12#include <signal.h>
12#include <sched.h> 13#include <sched.h>
13#include <endian.h>
14 14
15#include <pthread.h> 15#include <pthread.h>
16#include <sys/syscall.h>
17 16
18typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 17typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
19typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 18typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
20typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 19typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
21 20
… …
42 off_t offset; 41 off_t offset;
43 size_t length; 42 size_t length;
44 ssize_t result; 43 ssize_t result;
45 mode_t mode; /* open */ 44 mode_t mode; /* open */
46 int errorno; 45 int errorno;
47 SV *data, *callback; 46 SV *data, *callback, *fh;
48 void *dataptr; 47 void *dataptr;
49 STRLEN dataoffset; 48 STRLEN dataoffset;
50 49
51 Stat_t *statdata; 50 Stat_t *statdata;
52} aio_cb; 51} aio_cb;
53 52
54typedef aio_cb *aio_req; 53typedef aio_cb *aio_req;
55 54
56static int started; 55static int started;
57static int nreqs; 56static volatile int nreqs;
58static int max_outstanding = 1<<30; 57static int max_outstanding = 1<<30;
59static int respipe [2]; 58static int respipe [2];
60 59
61static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 60static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
62static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 61static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
… …
66static volatile aio_req ress, rese; /* queue start, queue end */ 65static volatile aio_req ress, rese; /* queue start, queue end */
67 66
68static void 67static void
69poll_wait () 68poll_wait ()
70{ 69{
71 if (!nreqs) 70 if (nreqs && !ress)
72 return; 71 {
73
74 fd_set rfd; 72 fd_set rfd;
75 FD_ZERO(&rfd); 73 FD_ZERO(&rfd);
76 FD_SET(respipe [0], &rfd); 74 FD_SET(respipe [0], &rfd);
77 75
78 select (respipe [0] + 1, &rfd, 0, 0, 0); 76 select (respipe [0] + 1, &rfd, 0, 0, 0);
77 }
79} 78}
80 79
81static int 80static int
82poll_cb (pTHX) 81poll_cb ()
83{ 82{
84 dSP; 83 dSP;
85 int count = 0; 84 int count = 0;
86 aio_req req; 85 aio_req req, prv;
87 86
87 pthread_mutex_lock (&reslock);
88
88 { 89 {
89 /* read and signals sent by the worker threads */ 90 /* read any signals sent by the worker threads */
90 char buf [32]; 91 char buf [32];
91 while (read (respipe [0], buf, 32) > 0) 92 while (read (respipe [0], buf, 32) > 0)
92 ; 93 ;
93 } 94 }
94 95
95 for (;;) 96 req = ress;
97 ress = rese = 0;
98
99 pthread_mutex_unlock (&reslock);
100
101 while (req)
96 { 102 {
97 pthread_mutex_lock (&reslock);
98
99 req = ress;
100
101 if (ress)
102 {
103 ress = ress->next;
104 if (!ress) rese = 0;
105 }
106
107 pthread_mutex_unlock (&reslock);
108
109 if (!req)
110 break;
111
112 nreqs--; 103 nreqs--;
113 104
114 if (req->type == REQ_QUIT) 105 if (req->type == REQ_QUIT)
115 started--; 106 started--;
116 else 107 else
… …
123 + req->result > 0 ? req->result : 0); 114 + req->result > 0 ? req->result : 0);
124 115
125 if (req->data) 116 if (req->data)
126 SvREFCNT_dec (req->data); 117 SvREFCNT_dec (req->data);
127 118
119 if (req->fh)
120 SvREFCNT_dec (req->fh);
121
128 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) 122 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
129 { 123 {
130 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 124 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
131 PL_laststatval = req->result; 125 PL_laststatval = req->result;
132 PL_statcache = *(req->statdata); 126 PL_statcache = *(req->statdata);
133 127
134 Safefree (req->statdata); 128 Safefree (req->statdata);
135 } 129 }
136 130
131 ENTER;
137 PUSHMARK (SP); 132 PUSHMARK (SP);
138 XPUSHs (sv_2mortal (newSViv (req->result))); 133 XPUSHs (sv_2mortal (newSViv (req->result)));
139 134
140 if (req->type == REQ_OPEN) 135 if (req->type == REQ_OPEN)
141 { 136 {
… …
144 139
145 PUTBACK; 140 PUTBACK;
146 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 141 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
147 SPAGAIN; 142 SPAGAIN;
148 143
149 fh = POPs; 144 fh = SvREFCNT_inc (POPs);
150 145
151 PUSHMARK (SP); 146 PUSHMARK (SP);
152 XPUSHs (fh); 147 XPUSHs (sv_2mortal (fh));
153 } 148 }
154 149
150 if (SvOK (req->callback))
151 {
155 PUTBACK; 152 PUTBACK;
156 call_sv (req->callback, G_VOID | G_EVAL); 153 call_sv (req->callback, G_VOID | G_EVAL);
157 SPAGAIN; 154 SPAGAIN;
155 }
156
157 LEAVE;
158 158
159 if (req->callback) 159 if (req->callback)
160 SvREFCNT_dec (req->callback); 160 SvREFCNT_dec (req->callback);
161 161
162 errno = errorno; 162 errno = errorno;
163 count++; 163 count++;
164 } 164 }
165 165
166 prv = req;
167 req = req->next;
166 Safefree (req); 168 Safefree (prv);
169
170 /* TODO: croak on errors? */
167 } 171 }
168 172
169 return count; 173 return count;
170} 174}
171 175
… …
226 req->type = REQ_QUIT; 230 req->type = REQ_QUIT;
227 231
228 send_req (req); 232 send_req (req);
229} 233}
230 234
231static void
232read_write (pTHX_
233 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
240 SvUPGRADE (data, SVt_PV);
241 SvPOK_on (data);
242
243 if (dataoffset < 0)
244 dataoffset += svlen;
245
246 if (dataoffset < 0 || dataoffset > svlen)
247 croak ("data offset outside of string");
248
249 if (dowrite)
250 {
251 /* write: check length and adjust. */
252 if (length < 0 || length + dataoffset > svlen)
253 length = svlen - dataoffset;
254 }
255 else
256 {
257 /* read: grow scalar as necessary */
258 svptr = SvGROW (data, length + dataoffset);
259 }
260
261 if (length < 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}
279
280static void * 235static void *
281aio_proc (void *thr_arg) 236aio_proc (void *thr_arg)
282{ 237{
283 aio_req req; 238 aio_req req;
284 int type; 239 int type;
… …
309 264
310 type = req->type; 265 type = req->type;
311 266
312 switch (type) 267 switch (type)
313 { 268 {
269#if HAVE_PREADWRITE
314 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; 270 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
315 case REQ_WRITE: req->result = pwrite64 (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;
316#if SYS_readahead 272#else
273# error "pread/pwrite cannot be emulated, fix your os"
274#endif
275
276#if HAVE_READAHEAD
317 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 277 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
318#else 278#else
279 // TODO: emulate
319 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; 280 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
320#endif 281#endif
321 282
322 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 283 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
323 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 284 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
… …
325 286
326 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 287 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
327 case REQ_CLOSE: req->result = close (req->fd); break; 288 case REQ_CLOSE: req->result = close (req->fd); break;
328 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 289 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
329 290
291 case REQ_FDATASYNC:
292#if HAVE_FDATASYNC
293 req->result = fdatasync (req->fd); break;
294#endif
330 case REQ_FSYNC: req->result = fsync (req->fd); break; 295 case REQ_FSYNC: req->result = fsync (req->fd); break;
331 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
332 296
333 case REQ_QUIT: 297 case REQ_QUIT:
334 break; 298 break;
335 299
336 default: 300 default:
… …
364 return 0; 328 return 0;
365} 329}
366 330
367MODULE = IO::AIO PACKAGE = IO::AIO 331MODULE = IO::AIO PACKAGE = IO::AIO
368 332
333PROTOTYPES: ENABLE
334
369BOOT: 335BOOT:
370{ 336{
371 if (pipe (respipe)) 337 if (pipe (respipe))
372 croak ("unable to initialize result pipe"); 338 croak ("unable to initialize result pipe");
373 339
… …
400 } 366 }
401 367
402 while (started > nthreads) 368 while (started > nthreads)
403 { 369 {
404 poll_wait (); 370 poll_wait ();
405 poll_cb (aTHX); 371 poll_cb ();
406 } 372 }
407} 373}
408 374
409int 375int
410max_outstanding(nreqs) 376max_outstanding(nreqs)
… …
413 CODE: 379 CODE:
414 RETVAL = max_outstanding; 380 RETVAL = max_outstanding;
415 max_outstanding = nreqs; 381 max_outstanding = nreqs;
416 382
417void 383void
418aio_open(pathname,flags,mode,callback) 384aio_open(pathname,flags,mode,callback=&PL_sv_undef)
419 SV * pathname 385 SV * pathname
420 int flags 386 int flags
421 int mode 387 int mode
422 SV * callback 388 SV * callback
423 PROTOTYPE: $$$$ 389 PROTOTYPE: $$$;$
424 CODE: 390 CODE:
425{ 391{
426 aio_req req; 392 aio_req req;
427 393
428 Newz (0, req, 1, aio_cb); 394 Newz (0, req, 1, aio_cb);
… …
439 405
440 send_req (req); 406 send_req (req);
441} 407}
442 408
443void 409void
444aio_close(fh,callback) 410aio_close(fh,callback=&PL_sv_undef)
445 InputStream fh 411 SV * fh
446 SV * callback 412 SV * callback
447 PROTOTYPE: $$ 413 PROTOTYPE: $;$
448 ALIAS: 414 ALIAS:
449 aio_close = REQ_CLOSE 415 aio_close = REQ_CLOSE
450 aio_fsync = REQ_FSYNC 416 aio_fsync = REQ_FSYNC
451 aio_fdatasync = REQ_FDATASYNC 417 aio_fdatasync = REQ_FDATASYNC
452 CODE: 418 CODE:
… …
457 423
458 if (!req) 424 if (!req)
459 croak ("out of memory during aio_req allocation"); 425 croak ("out of memory during aio_req allocation");
460 426
461 req->type = ix; 427 req->type = ix;
428 req->fh = newSVsv (fh);
462 req->fd = PerlIO_fileno (fh); 429 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
463 req->callback = SvREFCNT_inc (callback); 430 req->callback = SvREFCNT_inc (callback);
464 431
465 send_req (req); 432 send_req (req);
466} 433}
467 434
468void 435void
469aio_read(fh,offset,length,data,dataoffset,callback) 436aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
470 InputStream fh 437 SV * fh
471 UV offset 438 UV offset
472 IV length 439 IV length
473 SV * data 440 SV * data
474 IV dataoffset 441 IV dataoffset
475 SV * callback 442 SV * callback
443 ALIAS:
444 aio_read = REQ_READ
445 aio_write = REQ_WRITE
476 PROTOTYPE: $$$$$$ 446 PROTOTYPE: $$$$$;$
477 CODE: 447 CODE:
478 read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
479
480void
481aio_write(fh,offset,length,data,dataoffset,callback)
482 OutputStream fh
483 UV offset
484 IV length
485 SV * data
486 IV dataoffset
487 SV * callback
488 PROTOTYPE: $$$$$$
489 CODE:
490 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
491
492void
493aio_readahead(fh,offset,length,callback)
494 InputStream fh
495 UV offset
496 IV length
497 SV * callback
498 PROTOTYPE: $$$$
499 CODE:
500{ 448{
501 aio_req req; 449 aio_req req;
450 STRLEN svlen;
451 char *svptr = SvPV (data, svlen);
452
453 SvUPGRADE (data, SVt_PV);
454 SvPOK_on (data);
455
456 if (dataoffset < 0)
457 dataoffset += svlen;
458
459 if (dataoffset < 0 || dataoffset > svlen)
460 croak ("data offset outside of string");
461
462 if (ix == REQ_WRITE)
463 {
464 /* write: check length and adjust. */
465 if (length < 0 || length + dataoffset > svlen)
466 length = svlen - dataoffset;
467 }
468 else
469 {
470 /* read: grow scalar as necessary */
471 svptr = SvGROW (data, length + dataoffset);
472 }
502 473
503 if (length < 0) 474 if (length < 0)
504 croak ("length must not be negative"); 475 croak ("length must not be negative");
505 476
506 Newz (0, req, 1, aio_cb); 477 Newz (0, req, 1, aio_cb);
507 478
508 if (!req) 479 if (!req)
509 croak ("out of memory during aio_req allocation"); 480 croak ("out of memory during aio_req allocation");
510 481
482 req->type = ix;
483 req->fh = newSVsv (fh);
484 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
485 : IoOFP (sv_2io (fh)));
486 req->offset = offset;
487 req->length = length;
488 req->data = SvREFCNT_inc (data);
489 req->dataptr = (char *)svptr + dataoffset;
490 req->callback = SvREFCNT_inc (callback);
491
492 send_req (req);
493}
494
495void
496aio_readahead(fh,offset,length,callback=&PL_sv_undef)
497 SV * fh
498 UV offset
499 IV length
500 SV * callback
501 PROTOTYPE: $$$;$
502 CODE:
503{
504 aio_req req;
505
506 if (length < 0)
507 croak ("length must not be negative");
508
509 Newz (0, req, 1, aio_cb);
510
511 if (!req)
512 croak ("out of memory during aio_req allocation");
513
511 req->type = REQ_READAHEAD; 514 req->type = REQ_READAHEAD;
515 req->fh = newSVsv (fh);
512 req->fd = PerlIO_fileno (fh); 516 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
513 req->offset = offset; 517 req->offset = offset;
514 req->length = length; 518 req->length = length;
515 req->callback = SvREFCNT_inc (callback); 519 req->callback = SvREFCNT_inc (callback);
516 520
517 send_req (req); 521 send_req (req);
518} 522}
519 523
520void 524void
521aio_stat(fh_or_path,callback) 525aio_stat(fh_or_path,callback=&PL_sv_undef)
522 SV * fh_or_path 526 SV * fh_or_path
523 SV * callback 527 SV * callback
524 PROTOTYPE: $$
525 ALIAS: 528 ALIAS:
529 aio_stat = REQ_STAT
526 aio_lstat = 1 530 aio_lstat = REQ_LSTAT
527 CODE: 531 CODE:
528{ 532{
529 aio_req req; 533 aio_req req;
530 534
531 Newz (0, req, 1, aio_cb); 535 Newz (0, req, 1, aio_cb);
… …
538 if (!req->statdata) 542 if (!req->statdata)
539 croak ("out of memory during aio_req->statdata allocation"); 543 croak ("out of memory during aio_req->statdata allocation");
540 544
541 if (SvPOK (fh_or_path)) 545 if (SvPOK (fh_or_path))
542 { 546 {
543 req->type = ix ? REQ_LSTAT : REQ_STAT; 547 req->type = ix;
544 req->data = newSVsv (fh_or_path); 548 req->data = newSVsv (fh_or_path);
545 req->dataptr = SvPV_nolen (req->data); 549 req->dataptr = SvPV_nolen (req->data);
546 } 550 }
547 else 551 else
548 { 552 {
549 req->type = REQ_FSTAT; 553 req->type = REQ_FSTAT;
554 req->fh = newSVsv (fh_or_path);
550 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 555 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
551 } 556 }
552 557
553 req->callback = SvREFCNT_inc (callback); 558 req->callback = SvREFCNT_inc (callback);
554 559
555 send_req (req); 560 send_req (req);
556} 561}
557 562
558void 563void
559aio_unlink(pathname,callback) 564aio_unlink(pathname,callback=&PL_sv_undef)
560 SV * pathname 565 SV * pathname
561 SV * callback 566 SV * callback
562 PROTOTYPE: $$
563 CODE: 567 CODE:
564{ 568{
565 aio_req req; 569 aio_req req;
566 570
567 Newz (0, req, 1, aio_cb); 571 Newz (0, req, 1, aio_cb);
… …
575 req->callback = SvREFCNT_inc (callback); 579 req->callback = SvREFCNT_inc (callback);
576 580
577 send_req (req); 581 send_req (req);
578} 582}
579 583
584void
585flush()
586 PROTOTYPE:
587 CODE:
588 while (nreqs)
589 {
590 poll_wait ();
591 poll_cb ();
592 }
593
594void
595poll()
596 PROTOTYPE:
597 CODE:
598 if (nreqs)
599 {
600 poll_wait ();
601 poll_cb ();
602 }
603
580int 604int
581poll_fileno() 605poll_fileno()
582 PROTOTYPE: 606 PROTOTYPE:
583 CODE: 607 CODE:
584 RETVAL = respipe [0]; 608 RETVAL = respipe [0];
… …
587 611
588int 612int
589poll_cb(...) 613poll_cb(...)
590 PROTOTYPE: 614 PROTOTYPE:
591 CODE: 615 CODE:
592 RETVAL = poll_cb (aTHX); 616 RETVAL = poll_cb ();
593 OUTPUT: 617 OUTPUT:
594 RETVAL 618 RETVAL
595 619
596void 620void
597poll_wait() 621poll_wait()

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