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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.152 by root, Tue Jul 14 00:32:27 2009 UTC vs.
Revision 1.168 by root, Wed Aug 4 14:02:58 2010 UTC

… …
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/types.h> 14#include <sys/types.h>
15#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
16#include <limits.h> 17#include <limits.h>
17#include <fcntl.h> 18#include <fcntl.h>
18#include <sched.h> 19#include <sched.h>
20
21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
19 24
20/* perl namespace pollution */ 25/* perl namespace pollution */
21#undef VERSION 26#undef VERSION
22 27
23#ifdef _WIN32 28#ifdef _WIN32
… …
99#define expect_false(expr) expect ((expr) != 0, 0) 104#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1) 105#define expect_true(expr) expect ((expr) != 0, 1)
101 106
102/*****************************************************************************/ 107/*****************************************************************************/
103 108
104static HV *stash;
105typedef SV SV8; /* byte-sv, used for argument-checking */ 109typedef SV SV8; /* byte-sv, used for argument-checking */
106typedef int aio_rfd; /* read file desriptor */ 110typedef int aio_rfd; /* read file desriptor */
107typedef int aio_wfd; /* write file descriptor */ 111typedef int aio_wfd; /* write file descriptor */
108 112
109#define AIO_REQ_KLASS "IO::AIO::REQ" 113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
110#define AIO_GRP_KLASS "IO::AIO::GRP"
111 114
112#define EIO_REQ_MEMBERS \ 115#define EIO_REQ_MEMBERS \
113 SV *callback; \ 116 SV *callback; \
114 SV *sv1, *sv2; \ 117 SV *sv1, *sv2; \
115 STRLEN stroffset; \ 118 STRLEN stroffset; \
… …
121 124
122#ifndef POSIX_FADV_NORMAL 125#ifndef POSIX_FADV_NORMAL
123# define POSIX_FADV_NORMAL 0 126# define POSIX_FADV_NORMAL 0
124# define NO_FADVISE 1 127# define NO_FADVISE 1
125#endif 128#endif
126
127#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
128# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
129#endif 131#endif
130
131#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
132# define POSIX_FADV_RANDOM 0 133# define POSIX_FADV_RANDOM 0
133#endif 134#endif
134
135#ifndef POSIX_FADV_NOREUSE 135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0 136# define POSIX_FADV_NOREUSE 0
137#endif 137#endif
138
139#ifndef POSIX_FADV_WILLNEED 138#ifndef POSIX_FADV_WILLNEED
140# define POSIX_FADV_WILLNEED 0 139# define POSIX_FADV_WILLNEED 0
141#endif 140#endif
142
143#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
144# define POSIX_FADV_DONTNEED 0 142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#ifndef ST_NODEV
146# define ST_NODEV 0
147#endif
148#ifndef ST_NOEXEC
149# define ST_NOEXEC 0
150#endif
151#ifndef ST_SYNCHRONOUS
152# define ST_SYNCHRONOUS 0
153#endif
154#ifndef ST_MANDLOCK
155# define ST_MANDLOCK 0
156#endif
157#ifndef ST_WRITE
158# define ST_WRITE 0
159#endif
160#ifndef ST_APPEND
161# define ST_APPEND 0
162#endif
163#ifndef ST_IMMUTABLE
164# define ST_IMMUTABLE 0
165#endif
166#ifndef ST_NOATIME
167# define ST_NOATIME 0
168#endif
169#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0
171#endif
172#ifndef ST_RELATIME
173# define ST_RELATIME 0
174#endif
175
176#ifndef MCL_CURRENT
177# define MCL_CURRENT 0
178#endif
179#ifndef MCL_FUTURE
180# define MCL_FUTURE 0
181#endif
182
183#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON
186# else
187# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188# endif
189#endif
190#ifndef MAP_HUGETLB
191# define MAP_HUGETLB 0
192#endif
193#ifndef MAP_LOCKED
194# define MAP_LOCKED 0
195#endif
196#ifndef MAP_NORESERVE
197# define MAP_NORESERVE 0
198#endif
199#ifndef MAP_POPULATE
200# define MAP_POPULATE 0
201#endif
202#ifndef MAP_NONBLOCK
203# define MAP_NONBLOCK 0
204#endif
205
206#ifndef PAGESIZE
207# define PAGESIZE sysconf (_SC_PAGESIZE)
145#endif 208#endif
146 209
147static int req_invoke (eio_req *req); 210static int req_invoke (eio_req *req);
148#define EIO_FINISH(req) req_invoke (req) 211#define EIO_FINISH(req) req_invoke (req)
149static void req_destroy (eio_req *grp); 212static void req_destroy (eio_req *grp);
… …
160 223
161static SV *on_next_submit; 224static SV *on_next_submit;
162static int next_pri = EIO_PRI_DEFAULT; 225static int next_pri = EIO_PRI_DEFAULT;
163static int max_outstanding; 226static int max_outstanding;
164 227
165static int respipe_osf [2], respipe [2] = { -1, -1 }; 228static s_epipe respipe;
166 229
167static void req_destroy (aio_req req); 230static void req_destroy (aio_req req);
168static void req_cancel (aio_req req); 231static void req_cancel (aio_req req);
169 232
170static void want_poll (void) 233static void want_poll (void)
171{ 234{
172 /* write a dummy byte to the pipe so fh becomes ready */ 235 /* write a dummy byte to the pipe so fh becomes ready */
173 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 236 s_epipe_signal (&respipe);
174} 237}
175 238
176static void done_poll (void) 239static void done_poll (void)
177{ 240{
178 /* read any signals sent by the worker threads */ 241 /* read any signals sent by the worker threads */
179 char buf [4]; 242 s_epipe_drain (&respipe);
180 while (respipe_read (respipe [0], buf, 4) == 4)
181 ;
182} 243}
183 244
184/* must be called at most once */ 245/* must be called at most once */
185static SV *req_sv (aio_req req, const char *klass) 246static SV *req_sv (aio_req req, HV *stash)
186{ 247{
187 if (!req->self) 248 if (!req->self)
188 { 249 {
189 req->self = (SV *)newHV (); 250 req->self = (SV *)newHV ();
190 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 251 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
191 } 252 }
192 253
193 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 254 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
194} 255}
195 256
196static aio_req SvAIO_REQ (SV *sv) 257static aio_req SvAIO_REQ (SV *sv)
197{ 258{
198 MAGIC *mg; 259 MAGIC *mg;
199 260
200 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 261 if (!SvROK (sv)
262 || (SvSTASH (SvRV (sv)) != aio_grp_stash
263 && SvSTASH (SvRV (sv)) != aio_req_stash
264 && !sv_derived_from (sv, "IO::AIO::REQ")))
201 croak ("object of class " AIO_REQ_KLASS " expected"); 265 croak ("object of class IO::AIO::REQ expected");
202 266
203 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 267 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
204 268
205 return mg ? (aio_req)mg->mg_ptr : 0; 269 return mg ? (aio_req)mg->mg_ptr : 0;
206} 270}
… …
212 dSP; 276 dSP;
213 277
214 ENTER; 278 ENTER;
215 SAVETMPS; 279 SAVETMPS;
216 PUSHMARK (SP); 280 PUSHMARK (SP);
217 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 281 XPUSHs (req_sv (grp, aio_grp_stash));
218 PUTBACK; 282 PUTBACK;
219 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 283 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
220 SPAGAIN; 284 SPAGAIN;
221 FREETMPS; 285 FREETMPS;
222 LEAVE; 286 LEAVE;
… …
240 } 304 }
241} 305}
242 306
243static int req_invoke (eio_req *req) 307static int req_invoke (eio_req *req)
244{ 308{
245 dSP;
246
247 if (req->flags & FLAG_SV2_RO_OFF) 309 if (req->flags & FLAG_SV2_RO_OFF)
248 SvREADONLY_off (req->sv2); 310 SvREADONLY_off (req->sv2);
249 311
250 if (!EIO_CANCELLED (req) && req->callback) 312 if (!EIO_CANCELLED (req) && req->callback)
251 { 313 {
314 dSP;
315 static SV *sv_result_cache; /* caches the result integer SV */
316 SV *sv_result;
317
252 ENTER; 318 ENTER;
253 SAVETMPS; 319 SAVETMPS;
254 PUSHMARK (SP); 320 PUSHMARK (SP);
255 EXTEND (SP, 1); 321 EXTEND (SP, 1);
322
323 /* do not recreate the result IV from scratch each time */
324 if (expect_true (sv_result_cache))
325 {
326 sv_result = sv_result_cache; sv_result_cache = 0;
327 SvIV_set (sv_result, req->result);
328 }
329 else
330 {
331 sv_result = newSViv (req->result);
332 SvREADONLY_on (sv_result);
333 }
256 334
257 switch (req->type) 335 switch (req->type)
258 { 336 {
259 case EIO_READDIR: 337 case EIO_READDIR:
260 { 338 {
… …
328 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 406 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
329 char sym [64]; 407 char sym [64];
330 int symlen; 408 int symlen;
331 409
332 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); 410 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
333 gv_init (gv, stash, sym, symlen, 0); 411 gv_init (gv, aio_stash, sym, symlen, 0);
334 412
335 symlen = snprintf ( 413 symlen = snprintf (
336 sym, 414 sym,
337 sizeof (sym), 415 sizeof (sym),
338 "%s&=%d", 416 "%s&=%d",
… …
346 424
347 PUSHs (fh); 425 PUSHs (fh);
348 } 426 }
349 break; 427 break;
350 428
429 case EIO_STATVFS:
430 case EIO_FSTATVFS:
431 {
432 SV *rv = &PL_sv_undef;
433
434 if (req->result >= 0)
435 {
436 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437 HV *hv = newHV ();
438
439 rv = sv_2mortal (newRV_noinc ((SV *)hv));
440
441 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
442 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
443 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
444 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
445 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
446 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
447 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
448 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
450 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452 }
453
454 PUSHs (rv);
455 }
456
457 break;
458
351 case EIO_GROUP: 459 case EIO_GROUP:
352 req->int1 = 2; /* mark group as finished */ 460 req->int1 = 2; /* mark group as finished */
353 461
354 if (req->sv1) 462 if (req->sv1)
355 { 463 {
… …
375 case EIO_LSTAT: 483 case EIO_LSTAT:
376 case EIO_FSTAT: 484 case EIO_FSTAT:
377 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 485 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
378 PL_laststatval = req->result; 486 PL_laststatval = req->result;
379 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 487 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
380 PUSHs (sv_2mortal (newSViv (req->result))); 488 PUSHs (sv_result);
381 break; 489 break;
382 490
383 case EIO_READ: 491 case EIO_READ:
384 { 492 {
385 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 493 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
386 *SvEND (req->sv2) = 0; 494 *SvEND (req->sv2) = 0;
387 SvPOK_only (req->sv2); 495 SvPOK_only (req->sv2);
388 SvSETMAGIC (req->sv2); 496 SvSETMAGIC (req->sv2);
389 PUSHs (sv_2mortal (newSViv (req->result))); 497 PUSHs (sv_result);
390 } 498 }
391 break; 499 break;
392 500
393 case EIO_DUP2: 501 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
394 if (req->result > 0) 502 if (req->result > 0)
395 req->result = 0; 503 SvIV_set (sv_result, 0);
396 /* FALLTHROUGH */ 504 /* FALLTHROUGH */
397 505
398 default: 506 default:
399 PUSHs (sv_2mortal (newSViv (req->result))); 507 PUSHs (sv_result);
400 break; 508 break;
401 } 509 }
402 510
403 errno = req->errorno; 511 errno = req->errorno;
404 512
405 PUTBACK; 513 PUTBACK;
406 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 514 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
407 SPAGAIN; 515 SPAGAIN;
516
517 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
518 SvREFCNT_dec (sv_result);
519 else
520 sv_result_cache = sv_result;
408 521
409 FREETMPS; 522 FREETMPS;
410 LEAVE; 523 LEAVE;
411 524
412 PUTBACK; 525 PUTBACK;
… …
441 grp->sv2 = 0; 554 grp->sv2 = 0;
442 555
443 eio_grp_cancel (grp); 556 eio_grp_cancel (grp);
444} 557}
445 558
446#ifdef USE_SOCKETS_AS_HANDLES
447# define TO_SOCKET(x) (win32_get_osfhandle (x))
448#else
449# define TO_SOCKET(x) (x)
450#endif
451
452static void 559static void
453create_respipe (void) 560create_respipe (void)
454{ 561{
455 int old_readfd = respipe [0];
456
457 if (respipe [1] >= 0)
458 respipe_close (TO_SOCKET (respipe [1]));
459
460#ifdef _WIN32
461 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
462#else
463 if (pipe (respipe)) 562 if (s_epipe_renew (&respipe))
464#endif
465 croak ("unable to initialize result pipe"); 563 croak ("IO::AIO: unable to initialize result pipe");
466
467 if (old_readfd >= 0)
468 {
469 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
470 croak ("unable to initialize result pipe(2)");
471
472 respipe_close (respipe [0]);
473 respipe [0] = old_readfd;
474 }
475
476#ifdef _WIN32
477 int arg = 1;
478 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
479 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
480#else
481 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
482 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
483#endif
484 croak ("unable to initialize result pipe(3)");
485
486 respipe_osf [0] = TO_SOCKET (respipe [0]);
487 respipe_osf [1] = TO_SOCKET (respipe [1]);
488} 564}
489 565
490static void poll_wait (void) 566static void poll_wait (void)
491{ 567{
492 fd_set rfd;
493
494 while (eio_nreqs ()) 568 while (eio_nreqs ())
495 { 569 {
496 int size; 570 int size;
497 571
498 X_LOCK (reslock); 572 X_LOCK (reslock);
… …
502 if (size) 576 if (size)
503 return; 577 return;
504 578
505 etp_maybe_start_thread (); 579 etp_maybe_start_thread ();
506 580
507 FD_ZERO (&rfd); 581 s_epipe_wait (&respipe);
508 FD_SET (respipe [0], &rfd);
509
510 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
511 } 582 }
512} 583}
513 584
514static int poll_cb (void) 585static int poll_cb (void)
515{ 586{
… …
529 600
530static void atfork_child (void) 601static void atfork_child (void)
531{ 602{
532 create_respipe (); 603 create_respipe ();
533} 604}
605
606/*****************************************************************************/
607
608#if !_POSIX_MAPPED_FILES
609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610# define munmap(addr,length) (errno = ENOSYS, -1)
611#endif
612
613#define MMAP_MAGIC PERL_MAGIC_ext
614
615static int
616mmap_free (pTHX_ SV *sv, MAGIC *mg)
617{
618 int old_errno = errno;
619 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620 errno = old_errno;
621
622 mg->mg_obj = 0; /* just in case */
623
624 SvREADONLY_off (sv);
625
626 if (SvPVX (sv) != mg->mg_ptr)
627 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
628
629 SvCUR_set (sv, 0);
630 SvPVX (sv) = 0;
631 SvOK_off (sv);
632
633 return 0;
634}
635
636static MGVTBL mmap_vtbl = {
637 0, 0, 0, 0, mmap_free
638};
639
640/*****************************************************************************/
534 641
535static SV * 642static SV *
536get_cb (SV *cb_sv) 643get_cb (SV *cb_sv)
537{ 644{
538 SvGETMAGIC (cb_sv); 645 SvGETMAGIC (cb_sv);
… …
558 PUTBACK; \ 665 PUTBACK; \
559 req_submit (req); \ 666 req_submit (req); \
560 SPAGAIN; \ 667 SPAGAIN; \
561 \ 668 \
562 if (GIMME_V != G_VOID) \ 669 if (GIMME_V != G_VOID) \
563 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 670 XPUSHs (req_sv (req, aio_req_stash));
564 671
565MODULE = IO::AIO PACKAGE = IO::AIO 672MODULE = IO::AIO PACKAGE = IO::AIO
566 673
567PROTOTYPES: ENABLE 674PROTOTYPES: ENABLE
568 675
… …
570{ 677{
571 static const struct { 678 static const struct {
572 const char *name; 679 const char *name;
573 IV iv; 680 IV iv;
574 } *civ, const_iv[] = { 681 } *civ, const_iv[] = {
575# define const_iv(name, value) { # name, (IV) value }, 682# define const_niv(name, value) { # name, (IV) value },
683# define const_iv(name) { # name, (IV) name },
576# define const_eio(name) { # name, (IV) EIO_ ## name }, 684# define const_eio(name) { # name, (IV) EIO_ ## name },
577 const_iv (EXDEV , EXDEV) 685 const_iv (EXDEV)
578 const_iv (ENOSYS , ENOSYS) 686 const_iv (ENOSYS)
579 const_iv (O_RDONLY, O_RDONLY) 687 const_iv (O_RDONLY)
580 const_iv (O_WRONLY, O_WRONLY) 688 const_iv (O_WRONLY)
689 const_iv (O_RDWR)
581 const_iv (O_CREAT , O_CREAT) 690 const_iv (O_CREAT)
582 const_iv (O_TRUNC , O_TRUNC) 691 const_iv (O_TRUNC)
692 const_iv (O_EXCL)
693 const_iv (O_APPEND)
583#ifndef _WIN32 694#ifndef _WIN32
584 const_iv (S_IFIFO , S_IFIFO) 695 const_iv (S_IFIFO)
585#endif 696#endif
586 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 697 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
587 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 698 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
588 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 699 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
589 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 700 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
590 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 701 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
591 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 702 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
703
704 const_iv (ST_RDONLY)
705 const_iv (ST_NOSUID)
706 const_iv (ST_NODEV)
707 const_iv (ST_NOEXEC)
708 const_iv (ST_SYNCHRONOUS)
709 const_iv (ST_MANDLOCK)
710 const_iv (ST_WRITE)
711 const_iv (ST_APPEND)
712 const_iv (ST_IMMUTABLE)
713 const_iv (ST_NOATIME)
714 const_iv (ST_NODIRATIME)
715 const_iv (ST_RELATIME)
716
717 const_iv (PROT_EXEC)
718 const_iv (PROT_NONE)
719 const_iv (PROT_READ)
720 const_iv (PROT_WRITE)
721
722 /*const_iv (MAP_FIXED)*/
723 const_iv (MAP_PRIVATE)
724 const_iv (MAP_SHARED)
725 const_iv (MAP_ANONYMOUS)
726
727 /* linuxish */
728 const_iv (MAP_HUGETLB)
729 const_iv (MAP_LOCKED)
730 const_iv (MAP_NORESERVE)
731 const_iv (MAP_POPULATE)
732 const_iv (MAP_NONBLOCK)
733
734 const_iv (MCL_FUTURE)
735 const_iv (MCL_CURRENT)
736
737 const_eio (MS_ASYNC)
738 const_eio (MS_INVALIDATE)
739 const_eio (MS_SYNC)
740
741 const_eio (MT_MODIFY)
592 742
593 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 743 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
594 const_eio (SYNC_FILE_RANGE_WRITE) 744 const_eio (SYNC_FILE_RANGE_WRITE)
595 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 745 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
596 746
… …
608 const_eio (DT_LNK) 758 const_eio (DT_LNK)
609 const_eio (DT_SOCK) 759 const_eio (DT_SOCK)
610 const_eio (DT_WHT) 760 const_eio (DT_WHT)
611 }; 761 };
612 762
613 stash = gv_stashpv ("IO::AIO", 1); 763 aio_stash = gv_stashpv ("IO::AIO" , 1);
764 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
765 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
614 766
615 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 767 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
616 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 768 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
769
770 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
617 771
618 create_respipe (); 772 create_respipe ();
619 773
620 if (eio_init (want_poll, done_poll) < 0) 774 if (eio_init (want_poll, done_poll) < 0)
621 croak ("IO::AIO: unable to initialise eio library"); 775 croak ("IO::AIO: unable to initialise eio library");
… …
848} 1002}
849 1003
850void 1004void
851aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1005aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
852 ALIAS: 1006 ALIAS:
853 aio_stat = EIO_STAT 1007 aio_stat = EIO_STAT
854 aio_lstat = EIO_LSTAT 1008 aio_lstat = EIO_LSTAT
1009 aio_statvfs = EIO_STATVFS
855 PPCODE: 1010 PPCODE:
856{ 1011{
857 dREQ; 1012 dREQ;
858 1013
859 req->sv1 = newSVsv (fh_or_path); 1014 req->sv1 = newSVsv (fh_or_path);
… …
863 req->type = ix; 1018 req->type = ix;
864 req->ptr1 = SvPVbyte_nolen (req->sv1); 1019 req->ptr1 = SvPVbyte_nolen (req->sv1);
865 } 1020 }
866 else 1021 else
867 { 1022 {
868 req->type = EIO_FSTAT; 1023 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
869 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1024 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
870 } 1025 }
871 1026
872 REQ_SEND; 1027 REQ_SEND;
873} 1028}
… …
1036 1191
1037 REQ_SEND; 1192 REQ_SEND;
1038} 1193}
1039 1194
1040void 1195void
1196aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1197 ALIAS:
1198 aio_mtouch = EIO_MTOUCH
1199 aio_msync = EIO_MSYNC
1200 PROTOTYPE: $$$$;$
1201 PPCODE:
1202{
1203 STRLEN svlen;
1204 UV len = SvUV (length);
1205 char *svptr = SvPVbyte (data, svlen);
1206
1207 if (offset < 0)
1208 offset += svlen;
1209
1210 if (offset < 0 || offset > svlen)
1211 croak ("offset outside of scalar");
1212
1213 if (!SvOK (length) || len + offset > svlen)
1214 len = svlen - offset;
1215
1216 {
1217 dREQ;
1218
1219 req->type = ix;
1220 req->size = len;
1221 req->sv2 = SvREFCNT_inc (data);
1222 req->ptr2 = (char *)svptr + offset;
1223 req->int1 = flags;
1224
1225 REQ_SEND;
1226 }
1227}
1228
1229void
1041aio_busy (double delay, SV *callback=&PL_sv_undef) 1230aio_busy (double delay, SV *callback=&PL_sv_undef)
1042 PPCODE: 1231 PPCODE:
1043{ 1232{
1044 dREQ; 1233 dREQ;
1045 1234
… …
1057 dREQ; 1246 dREQ;
1058 1247
1059 req->type = EIO_GROUP; 1248 req->type = EIO_GROUP;
1060 1249
1061 req_submit (req); 1250 req_submit (req);
1062 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1251 XPUSHs (req_sv (req, aio_grp_stash));
1063} 1252}
1064 1253
1065void 1254void
1066aio_nop (SV *callback=&PL_sv_undef) 1255aio_nop (SV *callback=&PL_sv_undef)
1067 ALIAS: 1256 ALIAS:
… …
1119 1308
1120int 1309int
1121poll_fileno() 1310poll_fileno()
1122 PROTOTYPE: 1311 PROTOTYPE:
1123 CODE: 1312 CODE:
1124 RETVAL = respipe [0]; 1313 RETVAL = s_epipe_fd (&respipe);
1125 OUTPUT: 1314 OUTPUT:
1126 RETVAL 1315 RETVAL
1127 1316
1128int 1317int
1129poll_cb(...) 1318poll_cb(...)
… …
1176 PROTOTYPE: $$$$ 1365 PROTOTYPE: $$$$
1177 CODE: 1366 CODE:
1178#if _XOPEN_SOURCE >= 600 && !NO_FADVISE 1367#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1179 RETVAL = posix_fadvise (fh, offset, length, advice); 1368 RETVAL = posix_fadvise (fh, offset, length, advice);
1180#else 1369#else
1181 RETVAL = errno = ENOSYS; 1370 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1182#endif 1371#endif
1183 OUTPUT: 1372 OUTPUT:
1184 RETVAL 1373 RETVAL
1185 1374
1186ssize_t 1375ssize_t
1187sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1376sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1188 PROTOTYPE: $$$$ 1377 PROTOTYPE: $$$$
1189 CODE: 1378 CODE:
1190 eio_sendfile_sync (ofh, ifh, offset, count); 1379 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1380 OUTPUT:
1381 RETVAL
1382
1383void
1384mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1385 PROTOTYPE: $$$$$;$
1386 PPCODE:
1387 sv_unmagic (scalar, MMAP_MAGIC);
1388{
1389 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1390 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1391 if (addr == (void *)-1)
1392 XSRETURN_NO;
1393
1394 sv_force_normal (scalar);
1395
1396 /* we store the length in mg_obj, as namlen is I32 :/ */
1397 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1398 ->mg_obj = (SV *)length;
1399
1400 SvUPGRADE (scalar, SVt_PV); /* nop... */
1401
1402 if (!(prot & PROT_WRITE))
1403 SvREADONLY_on (scalar);
1404
1405 if (SvLEN (scalar))
1406 Safefree (SvPVX (scalar));
1407
1408 SvPVX (scalar) = (char *)addr;
1409 SvCUR_set (scalar, length);
1410 SvLEN_set (scalar, 0);
1411 SvPOK_only (scalar);
1412
1413 XSRETURN_YES;
1414}
1415
1416void
1417munmap (SV *scalar)
1418 PROTOTYPE: $
1419 CODE:
1420 sv_unmagic (scalar, MMAP_MAGIC);
1421
1422int
1423mlockall (int flags)
1424 PROTOTYPE: $
1425 CODE:
1426#if _POSIX_MEMLOCK
1427#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1428 extern int mallopt (int, int);
1429 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1430#endif
1431 mlockall (flags);
1432#else
1433 RETVAL = -1;
1434 errno = ENOSYS;
1435#endif
1436 OUTPUT:
1437 RETVAL
1438
1439int
1440munlockall ()
1441 PROTOTYPE:
1442 CODE:
1443#if _POSIX_MEMLOCK
1444 munlockall ();
1445#else
1446 RETVAL = -1;
1447 errno = ENOSYS;
1448#endif
1449 OUTPUT:
1450 RETVAL
1191 1451
1192void _on_next_submit (SV *cb) 1452void _on_next_submit (SV *cb)
1193 CODE: 1453 CODE:
1194 SvREFCNT_dec (on_next_submit); 1454 SvREFCNT_dec (on_next_submit);
1195 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1455 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;

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