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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.150 by root, Wed Jul 1 08:11:24 2009 UTC vs.
Revision 1.181 by root, Tue Feb 15 03:21:41 2011 UTC

… …
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
14#include <limits.h> 17#include <limits.h>
15#include <fcntl.h> 18#include <fcntl.h>
16#include <sched.h> 19#include <sched.h>
20
21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
17 24
18/* perl namespace pollution */ 25/* perl namespace pollution */
19#undef VERSION 26#undef VERSION
20 27
21#ifdef _WIN32 28#ifdef _WIN32
… …
97#define expect_false(expr) expect ((expr) != 0, 0) 104#define expect_false(expr) expect ((expr) != 0, 0)
98#define expect_true(expr) expect ((expr) != 0, 1) 105#define expect_true(expr) expect ((expr) != 0, 1)
99 106
100/*****************************************************************************/ 107/*****************************************************************************/
101 108
102static HV *stash;
103typedef SV SV8; /* byte-sv, used for argument-checking */ 109typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */ 110typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */ 111typedef int aio_wfd; /* write file descriptor */
106 112
107#define AIO_REQ_KLASS "IO::AIO::REQ" 113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
108#define AIO_GRP_KLASS "IO::AIO::GRP"
109 114
110#define EIO_REQ_MEMBERS \ 115#define EIO_REQ_MEMBERS \
111 SV *callback; \ 116 SV *callback; \
112 SV *sv1, *sv2; \ 117 SV *sv1, *sv2; \
113 STRLEN stroffset; \ 118 STRLEN stroffset; \
114 SV *self; 119 SV *self;
115 120
116#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
117 122
123#include "libeio/config.h"
118#include "libeio/eio.h" 124#include "libeio/eio.h"
119 125
120#ifndef POSIX_FADV_NORMAL 126#ifndef POSIX_FADV_NORMAL
121# define POSIX_FADV_NORMAL 0 127# define POSIX_FADV_NORMAL 0
122# define NO_FADVISE 1
123#endif 128#endif
124
125#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
126# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
127#endif 131#endif
128
129#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
130# define POSIX_FADV_RANDOM 0 133# define POSIX_FADV_RANDOM 0
131#endif 134#endif
132
133#ifndef POSIX_FADV_NOREUSE 135#ifndef POSIX_FADV_NOREUSE
134# define POSIX_FADV_NOREUSE 0 136# define POSIX_FADV_NOREUSE 0
135#endif 137#endif
136
137#ifndef POSIX_FADV_WILLNEED 138#ifndef POSIX_FADV_WILLNEED
138# define POSIX_FADV_WILLNEED 0 139# define POSIX_FADV_WILLNEED 0
139#endif 140#endif
140
141#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#if !HAVE_POSIX_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151#endif
152#ifndef POSIX_MADV_SEQUENTIAL
153# define POSIX_MADV_SEQUENTIAL 0
154#endif
155#ifndef POSIX_MADV_RANDOM
156# define POSIX_MADV_RANDOM 0
157#endif
158#ifndef POSIX_MADV_WILLNEED
159# define POSIX_MADV_WILLNEED 0
160#endif
161#ifndef POSIX_MADV_DONTNEED
162# define POSIX_MADV_DONTNEED 0
163#endif
164
165#if !HAVE_POSIX_MADVISE
166# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167#endif
168
169#ifndef PROT_NONE
170# define PROT_NONE 0
171#endif
172#ifndef PROT_READ
173# define PROT_READ 0
174#endif
175#ifndef PROT_WRITE
176# define PROT_READ 0
177#endif
178#ifndef PROT_EXEC
179# define PROT_EXEC 0
180#endif
181
182#ifndef ST_NODEV
183# define ST_NODEV 0
184#endif
185#ifndef ST_NOEXEC
186# define ST_NOEXEC 0
187#endif
188#ifndef ST_SYNCHRONOUS
189# define ST_SYNCHRONOUS 0
190#endif
191#ifndef ST_MANDLOCK
192# define ST_MANDLOCK 0
193#endif
194#ifndef ST_WRITE
195# define ST_WRITE 0
196#endif
197#ifndef ST_APPEND
198# define ST_APPEND 0
199#endif
200#ifndef ST_IMMUTABLE
201# define ST_IMMUTABLE 0
202#endif
203#ifndef ST_NOATIME
204# define ST_NOATIME 0
205#endif
206#ifndef ST_NODIRATIME
207# define ST_NODIRATIME 0
208#endif
209#ifndef ST_RELATIME
210# define ST_RELATIME 0
211#endif
212
213#ifndef S_IFIFO
214# define S_IFIFO 0
215#endif
216#ifndef S_IFCHR
217# define S_IFCHR 0
218#endif
219#ifndef S_IFBLK
220# define S_IFBLK 0
221#endif
222#ifndef S_IFLNK
223# define S_IFLNK 0
224#endif
225#ifndef S_IFREG
226# define S_IFREG 0
227#endif
228#ifndef S_IFDIR
229# define S_IFDIR 0
230#endif
231#ifndef S_IFWHT
232# define S_IFWHT 0
233#endif
234#ifndef S_IFSOCK
235# define S_IFSOCK 0
236#endif
237
238#ifndef MAP_ANONYMOUS
239# ifdef MAP_ANON
240# define MAP_ANONYMOUS MAP_ANON
241# else
242# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
243# endif
244#endif
245#ifndef MAP_HUGETLB
246# define MAP_HUGETLB 0
247#endif
248#ifndef MAP_LOCKED
249# define MAP_LOCKED 0
250#endif
251#ifndef MAP_NORESERVE
252# define MAP_NORESERVE 0
253#endif
254#ifndef MAP_POPULATE
255# define MAP_POPULATE 0
256#endif
257#ifndef MAP_NONBLOCK
258# define MAP_NONBLOCK 0
259#endif
260
261#ifndef makedev
262# define makedev(maj,min) (((maj) << 8) | (min))
263#endif
264#ifndef major
265# define major(dev) ((dev) >> 8)
266#endif
267#ifndef minor
268# define minor(dev) ((dev) & 0xff)
269#endif
270
271#ifndef PAGESIZE
272# define PAGESIZE sysconf (_SC_PAGESIZE)
143#endif 273#endif
144 274
145static int req_invoke (eio_req *req); 275static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req) 276#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp); 277static void req_destroy (eio_req *grp);
… …
158 288
159static SV *on_next_submit; 289static SV *on_next_submit;
160static int next_pri = EIO_PRI_DEFAULT; 290static int next_pri = EIO_PRI_DEFAULT;
161static int max_outstanding; 291static int max_outstanding;
162 292
163static int respipe_osf [2], respipe [2] = { -1, -1 }; 293static s_epipe respipe;
164 294
165static void req_destroy (aio_req req); 295static void req_destroy (aio_req req);
166static void req_cancel (aio_req req); 296static void req_cancel (aio_req req);
167 297
168static void want_poll (void) 298static void want_poll (void)
169{ 299{
170 /* write a dummy byte to the pipe so fh becomes ready */ 300 /* write a dummy byte to the pipe so fh becomes ready */
171 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 301 s_epipe_signal (&respipe);
172} 302}
173 303
174static void done_poll (void) 304static void done_poll (void)
175{ 305{
176 /* read any signals sent by the worker threads */ 306 /* read any signals sent by the worker threads */
177 char buf [4]; 307 s_epipe_drain (&respipe);
178 while (respipe_read (respipe [0], buf, 4) == 4)
179 ;
180} 308}
181 309
182/* must be called at most once */ 310/* must be called at most once */
183static SV *req_sv (aio_req req, const char *klass) 311static SV *req_sv (aio_req req, HV *stash)
184{ 312{
185 if (!req->self) 313 if (!req->self)
186 { 314 {
187 req->self = (SV *)newHV (); 315 req->self = (SV *)newHV ();
188 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 316 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189 } 317 }
190 318
191 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 319 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192} 320}
193 321
194static aio_req SvAIO_REQ (SV *sv) 322static aio_req SvAIO_REQ (SV *sv)
195{ 323{
196 MAGIC *mg; 324 MAGIC *mg;
197 325
198 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 326 if (!SvROK (sv)
327 || (SvSTASH (SvRV (sv)) != aio_grp_stash
328 && SvSTASH (SvRV (sv)) != aio_req_stash
329 && !sv_derived_from (sv, "IO::AIO::REQ")))
199 croak ("object of class " AIO_REQ_KLASS " expected"); 330 croak ("object of class IO::AIO::REQ expected");
200 331
201 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 332 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202 333
203 return mg ? (aio_req)mg->mg_ptr : 0; 334 return mg ? (aio_req)mg->mg_ptr : 0;
204} 335}
… …
210 dSP; 341 dSP;
211 342
212 ENTER; 343 ENTER;
213 SAVETMPS; 344 SAVETMPS;
214 PUSHMARK (SP); 345 PUSHMARK (SP);
215 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 346 XPUSHs (req_sv (grp, aio_grp_stash));
216 PUTBACK; 347 PUTBACK;
217 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 348 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218 SPAGAIN; 349 SPAGAIN;
219 FREETMPS; 350 FREETMPS;
220 LEAVE; 351 LEAVE;
… …
238 } 369 }
239} 370}
240 371
241static int req_invoke (eio_req *req) 372static int req_invoke (eio_req *req)
242{ 373{
243 dSP;
244
245 if (req->flags & FLAG_SV2_RO_OFF) 374 if (req->flags & FLAG_SV2_RO_OFF)
246 SvREADONLY_off (req->sv2); 375 SvREADONLY_off (req->sv2);
247 376
248 if (!EIO_CANCELLED (req) && req->callback) 377 if (!EIO_CANCELLED (req) && req->callback)
249 { 378 {
379 dSP;
380 static SV *sv_result_cache; /* caches the result integer SV */
381 SV *sv_result;
382
250 ENTER; 383 ENTER;
251 SAVETMPS; 384 SAVETMPS;
252 PUSHMARK (SP); 385 PUSHMARK (SP);
253 EXTEND (SP, 1); 386 EXTEND (SP, 1);
387
388 /* do not recreate the result IV from scratch each time */
389 if (expect_true (sv_result_cache))
390 {
391 sv_result = sv_result_cache; sv_result_cache = 0;
392 SvIV_set (sv_result, req->result);
393 SvIOK_only (sv_result);
394 }
395 else
396 {
397 sv_result = newSViv (req->result);
398 SvREADONLY_on (sv_result);
399 }
254 400
255 switch (req->type) 401 switch (req->type)
256 { 402 {
257 case EIO_READDIR: 403 case EIO_READDIR:
258 { 404 {
… …
326 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 472 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327 char sym [64]; 473 char sym [64];
328 int symlen; 474 int symlen;
329 475
330 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); 476 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331 gv_init (gv, stash, sym, symlen, 0); 477 gv_init (gv, aio_stash, sym, symlen, 0);
332 478
333 symlen = snprintf ( 479 symlen = snprintf (
334 sym, 480 sym,
335 sizeof (sym), 481 sizeof (sym),
336 "%s&=%d", 482 "%s&=%d",
… …
344 490
345 PUSHs (fh); 491 PUSHs (fh);
346 } 492 }
347 break; 493 break;
348 494
495 case EIO_STATVFS:
496 case EIO_FSTATVFS:
497 {
498 SV *rv = &PL_sv_undef;
499
500 if (req->result >= 0)
501 {
502 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
503 HV *hv = newHV ();
504
505 rv = sv_2mortal (newRV_noinc ((SV *)hv));
506
507 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
508 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
509 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
510 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
511 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
512 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
513 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
514 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
515 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
516 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
517 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
518 }
519
520 PUSHs (rv);
521 }
522
523 break;
524
349 case EIO_GROUP: 525 case EIO_GROUP:
350 req->int1 = 2; /* mark group as finished */ 526 req->int1 = 2; /* mark group as finished */
351 527
352 if (req->sv1) 528 if (req->sv1)
353 { 529 {
… …
373 case EIO_LSTAT: 549 case EIO_LSTAT:
374 case EIO_FSTAT: 550 case EIO_FSTAT:
375 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 551 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
376 PL_laststatval = req->result; 552 PL_laststatval = req->result;
377 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 553 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378 PUSHs (sv_2mortal (newSViv (req->result))); 554 PUSHs (sv_result);
379 break; 555 break;
380 556
381 case EIO_READ: 557 case EIO_READ:
382 { 558 {
383 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 559 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384 *SvEND (req->sv2) = 0; 560 *SvEND (req->sv2) = 0;
385 SvPOK_only (req->sv2); 561 SvPOK_only (req->sv2);
386 SvSETMAGIC (req->sv2); 562 SvSETMAGIC (req->sv2);
387 PUSHs (sv_2mortal (newSViv (req->result))); 563 PUSHs (sv_result);
388 } 564 }
389 break; 565 break;
390 566
391 case EIO_DUP2: 567 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392 if (req->result > 0) 568 if (req->result > 0)
393 req->result = 0; 569 SvIV_set (sv_result, 0);
394 /* FALLTHROUGH */ 570 /* FALLTHROUGH */
395 571
396 default: 572 default:
397 PUSHs (sv_2mortal (newSViv (req->result))); 573 PUSHs (sv_result);
398 break; 574 break;
399 } 575 }
400 576
401 errno = req->errorno; 577 errno = req->errorno;
402 578
403 PUTBACK; 579 PUTBACK;
404 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 580 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405 SPAGAIN; 581 SPAGAIN;
582
583 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
584 SvREFCNT_dec (sv_result);
585 else
586 sv_result_cache = sv_result;
406 587
407 FREETMPS; 588 FREETMPS;
408 LEAVE; 589 LEAVE;
409 590
410 PUTBACK; 591 PUTBACK;
… …
439 grp->sv2 = 0; 620 grp->sv2 = 0;
440 621
441 eio_grp_cancel (grp); 622 eio_grp_cancel (grp);
442} 623}
443 624
444#ifdef USE_SOCKETS_AS_HANDLES
445# define TO_SOCKET(x) (win32_get_osfhandle (x))
446#else
447# define TO_SOCKET(x) (x)
448#endif
449
450static void 625static void
451create_respipe (void) 626create_respipe (void)
452{ 627{
453 int old_readfd = respipe [0];
454
455 if (respipe [1] >= 0)
456 respipe_close (TO_SOCKET (respipe [1]));
457
458#ifdef _WIN32
459 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
460#else
461 if (pipe (respipe)) 628 if (s_epipe_renew (&respipe))
462#endif
463 croak ("unable to initialize result pipe"); 629 croak ("IO::AIO: unable to initialize result pipe");
464
465 if (old_readfd >= 0)
466 {
467 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
468 croak ("unable to initialize result pipe(2)");
469
470 respipe_close (respipe [0]);
471 respipe [0] = old_readfd;
472 }
473
474#ifdef _WIN32
475 int arg = 1;
476 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
477 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
478#else
479 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
480 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
481#endif
482 croak ("unable to initialize result pipe(3)");
483
484 respipe_osf [0] = TO_SOCKET (respipe [0]);
485 respipe_osf [1] = TO_SOCKET (respipe [1]);
486} 630}
487 631
488static void poll_wait (void) 632static void poll_wait (void)
489{ 633{
490 fd_set rfd;
491
492 while (eio_nreqs ()) 634 while (eio_nreqs ())
493 { 635 {
494 int size; 636 int size;
495 637
496 X_LOCK (reslock); 638 X_LOCK (reslock);
… …
500 if (size) 642 if (size)
501 return; 643 return;
502 644
503 etp_maybe_start_thread (); 645 etp_maybe_start_thread ();
504 646
505 FD_ZERO (&rfd); 647 s_epipe_wait (&respipe);
506 FD_SET (respipe [0], &rfd);
507
508 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
509 } 648 }
510} 649}
511 650
512static int poll_cb (void) 651static int poll_cb (void)
513{ 652{
… …
528static void atfork_child (void) 667static void atfork_child (void)
529{ 668{
530 create_respipe (); 669 create_respipe ();
531} 670}
532 671
672/*****************************************************************************/
673
674#if !_POSIX_MAPPED_FILES
675# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
676# define munmap(addr,length) (errno = ENOSYS, -1)
677#endif
678
679#if !_POSIX_MEMORY_PROTECTION
680# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
681# define PROT_NONE 0
682# define PROT_WRITE 0
683# define MAP_PRIVATE 0
684# define MAP_SHARED 0
685# define MAP_FIXED 0
686#endif
687
688#define MMAP_MAGIC PERL_MAGIC_ext
689
690static int
691mmap_free (pTHX_ SV *sv, MAGIC *mg)
692{
693 int old_errno = errno;
694 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
695 errno = old_errno;
696
697 mg->mg_obj = 0; /* just in case */
698
699 SvREADONLY_off (sv);
700
701 if (SvPVX (sv) != mg->mg_ptr)
702 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
703
704 SvCUR_set (sv, 0);
705 SvPVX (sv) = 0;
706 SvOK_off (sv);
707
708 return 0;
709}
710
711static MGVTBL mmap_vtbl = {
712 0, 0, 0, 0, mmap_free
713};
714
715/*****************************************************************************/
716
533static SV * 717static SV *
534get_cb (SV *cb_sv) 718get_cb (SV *cb_sv)
535{ 719{
536 HV *st; 720 SvGETMAGIC (cb_sv);
537 GV *gvp; 721 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
538 CV *cv;
539
540 if (!SvOK (cb_sv))
541 return 0;
542
543 cv = sv_2cv (cb_sv, &st, &gvp, 0);
544
545 if (!cv)
546 croak ("IO::AIO callback must be undef or a CODE reference");
547
548 return (SV *)cv;
549} 722}
550 723
551#define dREQ \ 724#define dREQ \
552 SV *cb_cv; \ 725 SV *cb_cv; \
553 aio_req req; \ 726 aio_req req; \
… …
567 PUTBACK; \ 740 PUTBACK; \
568 req_submit (req); \ 741 req_submit (req); \
569 SPAGAIN; \ 742 SPAGAIN; \
570 \ 743 \
571 if (GIMME_V != G_VOID) \ 744 if (GIMME_V != G_VOID) \
572 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 745 XPUSHs (req_sv (req, aio_req_stash));
573
574static int
575extract_fd (SV *fh, int wr)
576{
577 int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
578
579 if (fd < 0)
580 croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
581
582 return fd;
583}
584 746
585MODULE = IO::AIO PACKAGE = IO::AIO 747MODULE = IO::AIO PACKAGE = IO::AIO
586 748
587PROTOTYPES: ENABLE 749PROTOTYPES: ENABLE
588 750
… …
590{ 752{
591 static const struct { 753 static const struct {
592 const char *name; 754 const char *name;
593 IV iv; 755 IV iv;
594 } *civ, const_iv[] = { 756 } *civ, const_iv[] = {
595# define const_iv(name, value) { # name, (IV) value }, 757# define const_niv(name, value) { # name, (IV) value },
758# define const_iv(name) { # name, (IV) name },
596# define const_eio(name) { # name, (IV) EIO_ ## name }, 759# define const_eio(name) { # name, (IV) EIO_ ## name },
597 const_iv (EXDEV , EXDEV) 760 const_iv (EXDEV)
598 const_iv (ENOSYS , ENOSYS) 761 const_iv (ENOSYS)
599 const_iv (O_RDONLY, O_RDONLY) 762 const_iv (O_RDONLY)
600 const_iv (O_WRONLY, O_WRONLY) 763 const_iv (O_WRONLY)
764 const_iv (O_RDWR)
601 const_iv (O_CREAT , O_CREAT) 765 const_iv (O_CREAT)
602 const_iv (O_TRUNC , O_TRUNC) 766 const_iv (O_TRUNC)
603#ifndef _WIN32 767 const_iv (O_EXCL)
768 const_iv (O_APPEND)
769
604 const_iv (S_IFIFO , S_IFIFO) 770 const_iv (S_IFIFO)
605#endif 771 const_iv (S_IFCHR)
772 const_iv (S_IFBLK)
773 const_iv (S_IFLNK)
774 const_iv (S_IFREG)
775 const_iv (S_IFDIR)
776 const_iv (S_IFWHT)
777 const_iv (S_IFSOCK)
778 const_iv (S_IFMT)
779
606 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 780 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
607 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 781 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
608 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 782 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
609 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 783 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
610 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 784 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
611 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 785 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
786
787 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
788 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
789 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
790 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
791 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
792
793 const_iv (ST_RDONLY)
794 const_iv (ST_NOSUID)
795 const_iv (ST_NODEV)
796 const_iv (ST_NOEXEC)
797 const_iv (ST_SYNCHRONOUS)
798 const_iv (ST_MANDLOCK)
799 const_iv (ST_WRITE)
800 const_iv (ST_APPEND)
801 const_iv (ST_IMMUTABLE)
802 const_iv (ST_NOATIME)
803 const_iv (ST_NODIRATIME)
804 const_iv (ST_RELATIME)
805
806 const_iv (PROT_NONE)
807 const_iv (PROT_EXEC)
808 const_iv (PROT_READ)
809 const_iv (PROT_WRITE)
810
811 /*const_iv (MAP_FIXED)*/
812 const_iv (MAP_PRIVATE)
813 const_iv (MAP_SHARED)
814 const_iv (MAP_ANONYMOUS)
815
816 /* linuxish */
817 const_iv (MAP_HUGETLB)
818 const_iv (MAP_LOCKED)
819 const_iv (MAP_NORESERVE)
820 const_iv (MAP_POPULATE)
821 const_iv (MAP_NONBLOCK)
822
823 const_eio (MCL_FUTURE)
824 const_eio (MCL_CURRENT)
825
826 const_eio (MS_ASYNC)
827 const_eio (MS_INVALIDATE)
828 const_eio (MS_SYNC)
829
830 const_eio (MT_MODIFY)
612 831
613 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 832 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
614 const_eio (SYNC_FILE_RANGE_WRITE) 833 const_eio (SYNC_FILE_RANGE_WRITE)
615 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 834 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
616 835
… …
628 const_eio (DT_LNK) 847 const_eio (DT_LNK)
629 const_eio (DT_SOCK) 848 const_eio (DT_SOCK)
630 const_eio (DT_WHT) 849 const_eio (DT_WHT)
631 }; 850 };
632 851
633 stash = gv_stashpv ("IO::AIO", 1); 852 aio_stash = gv_stashpv ("IO::AIO" , 1);
853 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
854 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
634 855
635 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 856 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
636 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 857 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
858
859 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
637 860
638 create_respipe (); 861 create_respipe ();
639 862
640 if (eio_init (want_poll, done_poll) < 0) 863 if (eio_init (want_poll, done_poll) < 0)
641 croak ("IO::AIO: unable to initialise eio library"); 864 croak ("IO::AIO: unable to initialise eio library");
… …
643 /* atfork child called in fifo order, so before eio's handler */ 866 /* atfork child called in fifo order, so before eio's handler */
644 X_THREAD_ATFORK (0, 0, atfork_child); 867 X_THREAD_ATFORK (0, 0, atfork_child);
645} 868}
646 869
647void 870void
648max_poll_reqs (int nreqs) 871max_poll_reqs (unsigned int nreqs)
649 PROTOTYPE: $ 872 PROTOTYPE: $
650 CODE: 873 CODE:
651 eio_set_max_poll_reqs (nreqs); 874 eio_set_max_poll_reqs (nreqs);
652 875
653void 876void
… …
655 PROTOTYPE: $ 878 PROTOTYPE: $
656 CODE: 879 CODE:
657 eio_set_max_poll_time (nseconds); 880 eio_set_max_poll_time (nseconds);
658 881
659void 882void
660min_parallel (int nthreads) 883min_parallel (unsigned int nthreads)
661 PROTOTYPE: $ 884 PROTOTYPE: $
662 CODE: 885 CODE:
663 eio_set_min_parallel (nthreads); 886 eio_set_min_parallel (nthreads);
664 887
665void 888void
666max_parallel (int nthreads) 889max_parallel (unsigned int nthreads)
667 PROTOTYPE: $ 890 PROTOTYPE: $
668 CODE: 891 CODE:
669 eio_set_max_parallel (nthreads); 892 eio_set_max_parallel (nthreads);
670 893
671void 894void
672max_idle (int nthreads) 895max_idle (unsigned int nthreads)
673 PROTOTYPE: $ 896 PROTOTYPE: $
674 CODE: 897 CODE:
675 eio_set_max_idle (nthreads); 898 eio_set_max_idle (nthreads);
676 899
677void 900void
901idle_timeout (unsigned int seconds)
902 PROTOTYPE: $
903 CODE:
904 eio_set_idle_timeout (seconds);
905
906void
678max_outstanding (int maxreqs) 907max_outstanding (unsigned int maxreqs)
679 PROTOTYPE: $ 908 PROTOTYPE: $
680 CODE: 909 CODE:
681 max_outstanding = maxreqs; 910 max_outstanding = maxreqs;
682 911
683void 912void
684aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 913aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
685 PROTOTYPE: $$$;$
686 PPCODE: 914 PPCODE:
687{ 915{
688 dREQ; 916 dREQ;
689 917
690 req->type = EIO_OPEN; 918 req->type = EIO_OPEN;
… …
696 REQ_SEND; 924 REQ_SEND;
697} 925}
698 926
699void 927void
700aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 928aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
701 PROTOTYPE: $;$
702 ALIAS: 929 ALIAS:
703 aio_fsync = EIO_FSYNC 930 aio_fsync = EIO_FSYNC
704 aio_fdatasync = EIO_FDATASYNC 931 aio_fdatasync = EIO_FDATASYNC
705 PPCODE: 932 PPCODE:
706{ 933{
707 int fd = extract_fd (fh, 0); 934 int fd = s_fileno_croak (fh, 0);
708 dREQ; 935 dREQ;
709 936
710 req->type = ix; 937 req->type = ix;
711 req->sv1 = newSVsv (fh); 938 req->sv1 = newSVsv (fh);
712 req->int1 = fd; 939 req->int1 = fd;
… …
714 REQ_SEND (req); 941 REQ_SEND (req);
715} 942}
716 943
717void 944void
718aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 945aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
719 PROTOTYPE: $$$$;$
720 PPCODE: 946 PPCODE:
721{ 947{
722 int fd = extract_fd (fh, 0); 948 int fd = s_fileno_croak (fh, 0);
723 dREQ; 949 dREQ;
724 950
725 req->type = EIO_SYNC_FILE_RANGE; 951 req->type = EIO_SYNC_FILE_RANGE;
726 req->sv1 = newSVsv (fh); 952 req->sv1 = newSVsv (fh);
727 req->int1 = fd; 953 req->int1 = fd;
… …
732 REQ_SEND (req); 958 REQ_SEND (req);
733} 959}
734 960
735void 961void
736aio_close (SV *fh, SV *callback=&PL_sv_undef) 962aio_close (SV *fh, SV *callback=&PL_sv_undef)
737 PROTOTYPE: $;$
738 PPCODE: 963 PPCODE:
739{ 964{
740 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 965 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
741 int fd = extract_fd (fh, 0); 966 int fd = s_fileno_croak (fh, 0);
742 dREQ; 967 dREQ;
743 968
744 if (close_pipe < 0) 969 if (close_pipe < 0)
745 { 970 {
746 int pipefd [2]; 971 int pipefd [2];
… …
764void 989void
765aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 990aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
766 ALIAS: 991 ALIAS:
767 aio_read = EIO_READ 992 aio_read = EIO_READ
768 aio_write = EIO_WRITE 993 aio_write = EIO_WRITE
769 PROTOTYPE: $$$$$;$
770 PPCODE: 994 PPCODE:
771{ 995{
772 STRLEN svlen; 996 STRLEN svlen;
773 int fd = extract_fd (fh, ix == EIO_WRITE); 997 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
774 char *svptr = SvPVbyte (data, svlen); 998 char *svptr = SvPVbyte (data, svlen);
775 UV len = SvUV (length); 999 UV len = SvUV (length);
776 1000
777 if (dataoffset < 0) 1001 if (dataoffset < 0)
778 dataoffset += svlen; 1002 dataoffset += svlen;
… …
815 } 1039 }
816} 1040}
817 1041
818void 1042void
819aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1043aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
820 PROTOTYPE: $$;$
821 PPCODE: 1044 PPCODE:
822{ 1045{
823 SV *data; 1046 SV *data;
824 dREQ; 1047 dREQ;
825 1048
… …
830 REQ_SEND; 1053 REQ_SEND;
831} 1054}
832 1055
833void 1056void
834aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1057aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
835 PROTOTYPE: $$$$;$
836 PPCODE: 1058 PPCODE:
837{ 1059{
838 int ifd = extract_fd (in_fh , 0); 1060 int ifd = s_fileno_croak (in_fh , 0);
839 int ofd = extract_fd (out_fh, 0); 1061 int ofd = s_fileno_croak (out_fh, 1);
840 dREQ; 1062 dREQ;
841 1063
842 req->type = EIO_SENDFILE; 1064 req->type = EIO_SENDFILE;
843 req->sv1 = newSVsv (out_fh); 1065 req->sv1 = newSVsv (out_fh);
844 req->int1 = ofd; 1066 req->int1 = ofd;
… …
850 REQ_SEND; 1072 REQ_SEND;
851} 1073}
852 1074
853void 1075void
854aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1076aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
855 PROTOTYPE: $$$;$
856 PPCODE: 1077 PPCODE:
857{ 1078{
858 int fd = extract_fd (fh, 0); 1079 int fd = s_fileno_croak (fh, 0);
859 dREQ; 1080 dREQ;
860 1081
861 req->type = EIO_READAHEAD; 1082 req->type = EIO_READAHEAD;
862 req->sv1 = newSVsv (fh); 1083 req->sv1 = newSVsv (fh);
863 req->int1 = fd; 1084 req->int1 = fd;
… …
868} 1089}
869 1090
870void 1091void
871aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1092aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
872 ALIAS: 1093 ALIAS:
873 aio_stat = EIO_STAT 1094 aio_stat = EIO_STAT
874 aio_lstat = EIO_LSTAT 1095 aio_lstat = EIO_LSTAT
1096 aio_statvfs = EIO_STATVFS
875 PPCODE: 1097 PPCODE:
876{ 1098{
877 dREQ; 1099 dREQ;
878 1100
879 req->sv1 = newSVsv (fh_or_path); 1101 req->sv1 = newSVsv (fh_or_path);
… …
883 req->type = ix; 1105 req->type = ix;
884 req->ptr1 = SvPVbyte_nolen (req->sv1); 1106 req->ptr1 = SvPVbyte_nolen (req->sv1);
885 } 1107 }
886 else 1108 else
887 { 1109 {
888 req->type = EIO_FSTAT; 1110 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
889 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1111 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
890 } 1112 }
891 1113
892 REQ_SEND; 1114 REQ_SEND;
893} 1115}
1116
1117UV
1118major (UV dev)
1119 ALIAS:
1120 minor = 1
1121 CODE:
1122 RETVAL = ix ? major (dev) : minor (dev);
1123 OUTPUT:
1124 RETVAL
1125
1126UV
1127makedev (UV maj, UV min)
1128 CODE:
1129 RETVAL = makedev (maj, min);
1130 OUTPUT:
1131 RETVAL
894 1132
895void 1133void
896aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1134aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
897 PPCODE: 1135 PPCODE:
898{ 1136{
… …
1056 1294
1057 REQ_SEND; 1295 REQ_SEND;
1058} 1296}
1059 1297
1060void 1298void
1299aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1300 ALIAS:
1301 aio_mtouch = EIO_MTOUCH
1302 aio_msync = EIO_MSYNC
1303 PPCODE:
1304{
1305 STRLEN svlen;
1306 char *svptr = SvPVbyte (data, svlen);
1307 UV len = SvUV (length);
1308
1309 if (offset < 0)
1310 offset += svlen;
1311
1312 if (offset < 0 || offset > svlen)
1313 croak ("offset outside of scalar");
1314
1315 if (!SvOK (length) || len + offset > svlen)
1316 len = svlen - offset;
1317
1318 {
1319 dREQ;
1320
1321 req->type = ix;
1322 req->sv2 = SvREFCNT_inc (data);
1323 req->ptr2 = (char *)svptr + offset;
1324 req->size = len;
1325 req->int1 = flags;
1326
1327 REQ_SEND;
1328 }
1329}
1330
1331void
1332aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1333 PPCODE:
1334{
1335 STRLEN svlen;
1336 char *svptr = SvPVbyte (data, svlen);
1337 UV len = SvUV (length);
1338
1339 if (offset < 0)
1340 offset += svlen;
1341
1342 if (offset < 0 || offset > svlen)
1343 croak ("offset outside of scalar");
1344
1345 if (!SvOK (length) || len + offset > svlen)
1346 len = svlen - offset;
1347
1348 {
1349 dREQ;
1350
1351 req->type = EIO_MLOCK;
1352 req->sv2 = SvREFCNT_inc (data);
1353 req->ptr2 = (char *)svptr + offset;
1354 req->size = len;
1355
1356 REQ_SEND;
1357 }
1358}
1359
1360void
1361aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1362 PPCODE:
1363{
1364 dREQ;
1365
1366 req->type = EIO_MLOCKALL;
1367 req->int1 = flags;
1368
1369 REQ_SEND;
1370}
1371
1372void
1061aio_busy (double delay, SV *callback=&PL_sv_undef) 1373aio_busy (double delay, SV *callback=&PL_sv_undef)
1062 PPCODE: 1374 PPCODE:
1063{ 1375{
1064 dREQ; 1376 dREQ;
1065 1377
… …
1069 REQ_SEND; 1381 REQ_SEND;
1070} 1382}
1071 1383
1072void 1384void
1073aio_group (SV *callback=&PL_sv_undef) 1385aio_group (SV *callback=&PL_sv_undef)
1074 PROTOTYPE: ;$
1075 PPCODE: 1386 PPCODE:
1076{ 1387{
1077 dREQ; 1388 dREQ;
1078 1389
1079 req->type = EIO_GROUP; 1390 req->type = EIO_GROUP;
1080 1391
1081 req_submit (req); 1392 req_submit (req);
1082 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1393 XPUSHs (req_sv (req, aio_grp_stash));
1083} 1394}
1084 1395
1085void 1396void
1086aio_nop (SV *callback=&PL_sv_undef) 1397aio_nop (SV *callback=&PL_sv_undef)
1087 ALIAS: 1398 ALIAS:
… …
1096 REQ_SEND; 1407 REQ_SEND;
1097} 1408}
1098 1409
1099int 1410int
1100aioreq_pri (int pri = 0) 1411aioreq_pri (int pri = 0)
1101 PROTOTYPE: ;$
1102 CODE: 1412 CODE:
1103 RETVAL = next_pri; 1413 RETVAL = next_pri;
1104 if (items > 0) 1414 if (items > 0)
1105 { 1415 {
1106 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1416 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1118 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1428 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1119 next_pri = nice; 1429 next_pri = nice;
1120 1430
1121void 1431void
1122flush () 1432flush ()
1123 PROTOTYPE:
1124 CODE: 1433 CODE:
1125 while (eio_nreqs ()) 1434 while (eio_nreqs ())
1126 { 1435 {
1127 poll_wait (); 1436 poll_wait ();
1128 poll_cb (); 1437 poll_cb ();
1129 } 1438 }
1130 1439
1131int 1440int
1132poll() 1441poll ()
1133 PROTOTYPE:
1134 CODE: 1442 CODE:
1135 poll_wait (); 1443 poll_wait ();
1136 RETVAL = poll_cb (); 1444 RETVAL = poll_cb ();
1137 OUTPUT: 1445 OUTPUT:
1138 RETVAL 1446 RETVAL
1139 1447
1140int 1448int
1141poll_fileno() 1449poll_fileno ()
1142 PROTOTYPE:
1143 CODE: 1450 CODE:
1144 RETVAL = respipe [0]; 1451 RETVAL = s_epipe_fd (&respipe);
1145 OUTPUT: 1452 OUTPUT:
1146 RETVAL 1453 RETVAL
1147 1454
1148int 1455int
1149poll_cb(...) 1456poll_cb (...)
1150 PROTOTYPE: 1457 PROTOTYPE:
1151 CODE: 1458 CODE:
1152 RETVAL = poll_cb (); 1459 RETVAL = poll_cb ();
1153 OUTPUT: 1460 OUTPUT:
1154 RETVAL 1461 RETVAL
1155 1462
1156void 1463void
1157poll_wait() 1464poll_wait ()
1158 PROTOTYPE:
1159 CODE: 1465 CODE:
1160 poll_wait (); 1466 poll_wait ();
1161 1467
1162int 1468int
1163nreqs() 1469nreqs ()
1164 PROTOTYPE:
1165 CODE: 1470 CODE:
1166 RETVAL = eio_nreqs (); 1471 RETVAL = eio_nreqs ();
1167 OUTPUT: 1472 OUTPUT:
1168 RETVAL 1473 RETVAL
1169 1474
1170int 1475int
1171nready() 1476nready ()
1172 PROTOTYPE:
1173 CODE: 1477 CODE:
1174 RETVAL = eio_nready (); 1478 RETVAL = eio_nready ();
1175 OUTPUT: 1479 OUTPUT:
1176 RETVAL 1480 RETVAL
1177 1481
1178int 1482int
1179npending() 1483npending ()
1180 PROTOTYPE:
1181 CODE: 1484 CODE:
1182 RETVAL = eio_npending (); 1485 RETVAL = eio_npending ();
1183 OUTPUT: 1486 OUTPUT:
1184 RETVAL 1487 RETVAL
1185 1488
1186int 1489int
1187nthreads() 1490nthreads ()
1188 PROTOTYPE:
1189 CODE: 1491 CODE:
1190 RETVAL = eio_nthreads (); 1492 RETVAL = eio_nthreads ();
1191 OUTPUT: 1493 OUTPUT:
1192 RETVAL 1494 RETVAL
1193 1495
1194int 1496int
1195fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1497fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1196 PROTOTYPE: $$$$
1197 CODE: 1498 CODE:
1198#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1199 RETVAL = posix_fadvise (fh, offset, length, advice); 1499 RETVAL = posix_fadvise (fh, offset, length, advice);
1200#else
1201 RETVAL = errno = ENOSYS;
1202#endif
1203 OUTPUT: 1500 OUTPUT:
1204 RETVAL 1501 RETVAL
1205 1502
1206ssize_t 1503ssize_t
1207sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1504sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1208 PROTOTYPE: $$$$
1209 CODE: 1505 CODE:
1210 eio_sendfile_sync (ofh, ifh, offset, count); 1506 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1507 OUTPUT:
1508 RETVAL
1509
1510void
1511mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1512 PPCODE:
1513 sv_unmagic (scalar, MMAP_MAGIC);
1514{
1515 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1516 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1517 if (addr == (void *)-1)
1518 XSRETURN_NO;
1519
1520 sv_force_normal (scalar);
1521
1522 /* we store the length in mg_obj, as namlen is I32 :/ */
1523 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1524 ->mg_obj = (SV *)length;
1525
1526 SvUPGRADE (scalar, SVt_PV); /* nop... */
1527
1528 if (!(prot & PROT_WRITE))
1529 SvREADONLY_on (scalar);
1530
1531 if (SvLEN (scalar))
1532 Safefree (SvPVX (scalar));
1533
1534 SvPVX (scalar) = (char *)addr;
1535 SvCUR_set (scalar, length);
1536 SvLEN_set (scalar, 0);
1537 SvPOK_only (scalar);
1538
1539 XSRETURN_YES;
1540}
1541
1542void
1543munmap (SV *scalar)
1544 CODE:
1545 sv_unmagic (scalar, MMAP_MAGIC);
1546
1547int
1548madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1549 ALIAS:
1550 mprotect = 1
1551 CODE:
1552{
1553 STRLEN svlen;
1554 void *addr = SvPVbyte (scalar, svlen);
1555 size_t len = SvUV (length);
1556
1557 if (offset < 0)
1558 offset += svlen;
1559
1560 if (offset < 0 || offset > svlen)
1561 croak ("offset outside of scalar");
1562
1563 if (!SvOK (length) || len + offset > svlen)
1564 len = svlen - offset;
1565
1566 addr = (void *)(((intptr_t)addr) + offset);
1567 eio_page_align (&addr, &len);
1568
1569 switch (ix)
1570 {
1571 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1572 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1573 }
1574}
1575 OUTPUT:
1576 RETVAL
1577
1578int
1579munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1580 CODE:
1581{
1582 STRLEN svlen;
1583 void *addr = SvPVbyte (scalar, svlen);
1584 size_t len = SvUV (length);
1585
1586 if (offset < 0)
1587 offset += svlen;
1588
1589 if (offset < 0 || offset > svlen)
1590 croak ("offset outside of scalar");
1591
1592 if (!SvOK (length) || len + offset > svlen)
1593 len = svlen - offset;
1594
1595 addr = (void *)(((intptr_t)addr) + offset);
1596 eio_page_align (&addr, &len);
1597#if _POSIX_MEMLOCK_RANGE
1598 RETVAL = munlock (addr, len);
1599#else
1600 RETVAL = ((errno = ENOSYS), -1);
1601#endif
1602}
1603 OUTPUT:
1604 RETVAL
1605
1606int
1607munlockall ()
1608 CODE:
1609#if _POSIX_MEMLOCK
1610 munlockall ();
1611#else
1612 RETVAL = -1;
1613 errno = ENOSYS;
1614#endif
1615 OUTPUT:
1616 RETVAL
1211 1617
1212void _on_next_submit (SV *cb) 1618void _on_next_submit (SV *cb)
1213 CODE: 1619 CODE:
1214 SvREFCNT_dec (on_next_submit); 1620 SvREFCNT_dec (on_next_submit);
1215 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1621 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
… …
1230 if (GIMME_V != G_VOID) 1636 if (GIMME_V != G_VOID)
1231 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1637 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1232 1638
1233 if (items > 1) 1639 if (items > 1)
1234 { 1640 {
1235 SV *cb_cv = get_cb (callback); 1641 SV *cb_cv =get_cb (callback);
1236 1642
1237 SvREFCNT_dec (req->callback); 1643 SvREFCNT_dec (req->callback);
1238 req->callback = SvREFCNT_inc (cb_cv); 1644 req->callback = SvREFCNT_inc (cb_cv);
1239 } 1645 }
1240} 1646}

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