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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 1.180 by root, Fri Feb 11 00:05:17 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");
… …
680 CODE: 903 CODE:
681 max_outstanding = maxreqs; 904 max_outstanding = maxreqs;
682 905
683void 906void
684aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 907aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
685 PROTOTYPE: $$$;$
686 PPCODE: 908 PPCODE:
687{ 909{
688 dREQ; 910 dREQ;
689 911
690 req->type = EIO_OPEN; 912 req->type = EIO_OPEN;
… …
696 REQ_SEND; 918 REQ_SEND;
697} 919}
698 920
699void 921void
700aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 922aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
701 PROTOTYPE: $;$
702 ALIAS: 923 ALIAS:
703 aio_fsync = EIO_FSYNC 924 aio_fsync = EIO_FSYNC
704 aio_fdatasync = EIO_FDATASYNC 925 aio_fdatasync = EIO_FDATASYNC
705 PPCODE: 926 PPCODE:
706{ 927{
707 int fd = extract_fd (fh, 0); 928 int fd = s_fileno_croak (fh, 0);
708 dREQ; 929 dREQ;
709 930
710 req->type = ix; 931 req->type = ix;
711 req->sv1 = newSVsv (fh); 932 req->sv1 = newSVsv (fh);
712 req->int1 = fd; 933 req->int1 = fd;
… …
714 REQ_SEND (req); 935 REQ_SEND (req);
715} 936}
716 937
717void 938void
718aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 939aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
719 PROTOTYPE: $$$$;$
720 PPCODE: 940 PPCODE:
721{ 941{
722 int fd = extract_fd (fh, 0); 942 int fd = s_fileno_croak (fh, 0);
723 dREQ; 943 dREQ;
724 944
725 req->type = EIO_SYNC_FILE_RANGE; 945 req->type = EIO_SYNC_FILE_RANGE;
726 req->sv1 = newSVsv (fh); 946 req->sv1 = newSVsv (fh);
727 req->int1 = fd; 947 req->int1 = fd;
… …
732 REQ_SEND (req); 952 REQ_SEND (req);
733} 953}
734 954
735void 955void
736aio_close (SV *fh, SV *callback=&PL_sv_undef) 956aio_close (SV *fh, SV *callback=&PL_sv_undef)
737 PROTOTYPE: $;$
738 PPCODE: 957 PPCODE:
739{ 958{
740 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 959 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
741 int fd = extract_fd (fh, 0); 960 int fd = s_fileno_croak (fh, 0);
742 dREQ; 961 dREQ;
743 962
744 if (close_pipe < 0) 963 if (close_pipe < 0)
745 { 964 {
746 int pipefd [2]; 965 int pipefd [2];
… …
764void 983void
765aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 984aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
766 ALIAS: 985 ALIAS:
767 aio_read = EIO_READ 986 aio_read = EIO_READ
768 aio_write = EIO_WRITE 987 aio_write = EIO_WRITE
769 PROTOTYPE: $$$$$;$
770 PPCODE: 988 PPCODE:
771{ 989{
772 STRLEN svlen; 990 STRLEN svlen;
773 int fd = extract_fd (fh, ix == EIO_WRITE); 991 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
774 char *svptr = SvPVbyte (data, svlen); 992 char *svptr = SvPVbyte (data, svlen);
775 UV len = SvUV (length); 993 UV len = SvUV (length);
776 994
777 if (dataoffset < 0) 995 if (dataoffset < 0)
778 dataoffset += svlen; 996 dataoffset += svlen;
… …
815 } 1033 }
816} 1034}
817 1035
818void 1036void
819aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1037aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
820 PROTOTYPE: $$;$
821 PPCODE: 1038 PPCODE:
822{ 1039{
823 SV *data; 1040 SV *data;
824 dREQ; 1041 dREQ;
825 1042
… …
830 REQ_SEND; 1047 REQ_SEND;
831} 1048}
832 1049
833void 1050void
834aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1051aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
835 PROTOTYPE: $$$$;$
836 PPCODE: 1052 PPCODE:
837{ 1053{
838 int ifd = extract_fd (in_fh , 0); 1054 int ifd = s_fileno_croak (in_fh , 0);
839 int ofd = extract_fd (out_fh, 0); 1055 int ofd = s_fileno_croak (out_fh, 1);
840 dREQ; 1056 dREQ;
841 1057
842 req->type = EIO_SENDFILE; 1058 req->type = EIO_SENDFILE;
843 req->sv1 = newSVsv (out_fh); 1059 req->sv1 = newSVsv (out_fh);
844 req->int1 = ofd; 1060 req->int1 = ofd;
… …
850 REQ_SEND; 1066 REQ_SEND;
851} 1067}
852 1068
853void 1069void
854aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1070aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
855 PROTOTYPE: $$$;$
856 PPCODE: 1071 PPCODE:
857{ 1072{
858 int fd = extract_fd (fh, 0); 1073 int fd = s_fileno_croak (fh, 0);
859 dREQ; 1074 dREQ;
860 1075
861 req->type = EIO_READAHEAD; 1076 req->type = EIO_READAHEAD;
862 req->sv1 = newSVsv (fh); 1077 req->sv1 = newSVsv (fh);
863 req->int1 = fd; 1078 req->int1 = fd;
… …
868} 1083}
869 1084
870void 1085void
871aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1086aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
872 ALIAS: 1087 ALIAS:
873 aio_stat = EIO_STAT 1088 aio_stat = EIO_STAT
874 aio_lstat = EIO_LSTAT 1089 aio_lstat = EIO_LSTAT
1090 aio_statvfs = EIO_STATVFS
875 PPCODE: 1091 PPCODE:
876{ 1092{
877 dREQ; 1093 dREQ;
878 1094
879 req->sv1 = newSVsv (fh_or_path); 1095 req->sv1 = newSVsv (fh_or_path);
… …
883 req->type = ix; 1099 req->type = ix;
884 req->ptr1 = SvPVbyte_nolen (req->sv1); 1100 req->ptr1 = SvPVbyte_nolen (req->sv1);
885 } 1101 }
886 else 1102 else
887 { 1103 {
888 req->type = EIO_FSTAT; 1104 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
889 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1105 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
890 } 1106 }
891 1107
892 REQ_SEND; 1108 REQ_SEND;
893} 1109}
1110
1111UV
1112major (UV dev)
1113 ALIAS:
1114 minor = 1
1115 CODE:
1116 RETVAL = ix ? major (dev) : minor (dev);
1117 OUTPUT:
1118 RETVAL
1119
1120UV
1121makedev (UV maj, UV min)
1122 CODE:
1123 RETVAL = makedev (maj, min);
1124 OUTPUT:
1125 RETVAL
894 1126
895void 1127void
896aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1128aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
897 PPCODE: 1129 PPCODE:
898{ 1130{
… …
1056 1288
1057 REQ_SEND; 1289 REQ_SEND;
1058} 1290}
1059 1291
1060void 1292void
1293aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1294 ALIAS:
1295 aio_mtouch = EIO_MTOUCH
1296 aio_msync = EIO_MSYNC
1297 PPCODE:
1298{
1299 STRLEN svlen;
1300 char *svptr = SvPVbyte (data, svlen);
1301 UV len = SvUV (length);
1302
1303 if (offset < 0)
1304 offset += svlen;
1305
1306 if (offset < 0 || offset > svlen)
1307 croak ("offset outside of scalar");
1308
1309 if (!SvOK (length) || len + offset > svlen)
1310 len = svlen - offset;
1311
1312 {
1313 dREQ;
1314
1315 req->type = ix;
1316 req->sv2 = SvREFCNT_inc (data);
1317 req->ptr2 = (char *)svptr + offset;
1318 req->size = len;
1319 req->int1 = flags;
1320
1321 REQ_SEND;
1322 }
1323}
1324
1325void
1326aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1327 PPCODE:
1328{
1329 STRLEN svlen;
1330 char *svptr = SvPVbyte (data, svlen);
1331 UV len = SvUV (length);
1332
1333 if (offset < 0)
1334 offset += svlen;
1335
1336 if (offset < 0 || offset > svlen)
1337 croak ("offset outside of scalar");
1338
1339 if (!SvOK (length) || len + offset > svlen)
1340 len = svlen - offset;
1341
1342 {
1343 dREQ;
1344
1345 req->type = EIO_MLOCK;
1346 req->sv2 = SvREFCNT_inc (data);
1347 req->ptr2 = (char *)svptr + offset;
1348 req->size = len;
1349
1350 REQ_SEND;
1351 }
1352}
1353
1354void
1355aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1356 PPCODE:
1357{
1358 dREQ;
1359
1360 req->type = EIO_MLOCKALL;
1361 req->int1 = flags;
1362
1363 REQ_SEND;
1364}
1365
1366void
1061aio_busy (double delay, SV *callback=&PL_sv_undef) 1367aio_busy (double delay, SV *callback=&PL_sv_undef)
1062 PPCODE: 1368 PPCODE:
1063{ 1369{
1064 dREQ; 1370 dREQ;
1065 1371
… …
1069 REQ_SEND; 1375 REQ_SEND;
1070} 1376}
1071 1377
1072void 1378void
1073aio_group (SV *callback=&PL_sv_undef) 1379aio_group (SV *callback=&PL_sv_undef)
1074 PROTOTYPE: ;$
1075 PPCODE: 1380 PPCODE:
1076{ 1381{
1077 dREQ; 1382 dREQ;
1078 1383
1079 req->type = EIO_GROUP; 1384 req->type = EIO_GROUP;
1080 1385
1081 req_submit (req); 1386 req_submit (req);
1082 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1387 XPUSHs (req_sv (req, aio_grp_stash));
1083} 1388}
1084 1389
1085void 1390void
1086aio_nop (SV *callback=&PL_sv_undef) 1391aio_nop (SV *callback=&PL_sv_undef)
1087 ALIAS: 1392 ALIAS:
… …
1096 REQ_SEND; 1401 REQ_SEND;
1097} 1402}
1098 1403
1099int 1404int
1100aioreq_pri (int pri = 0) 1405aioreq_pri (int pri = 0)
1101 PROTOTYPE: ;$
1102 CODE: 1406 CODE:
1103 RETVAL = next_pri; 1407 RETVAL = next_pri;
1104 if (items > 0) 1408 if (items > 0)
1105 { 1409 {
1106 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1410 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1118 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1422 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1119 next_pri = nice; 1423 next_pri = nice;
1120 1424
1121void 1425void
1122flush () 1426flush ()
1123 PROTOTYPE:
1124 CODE: 1427 CODE:
1125 while (eio_nreqs ()) 1428 while (eio_nreqs ())
1126 { 1429 {
1127 poll_wait (); 1430 poll_wait ();
1128 poll_cb (); 1431 poll_cb ();
1129 } 1432 }
1130 1433
1131int 1434int
1132poll() 1435poll ()
1133 PROTOTYPE:
1134 CODE: 1436 CODE:
1135 poll_wait (); 1437 poll_wait ();
1136 RETVAL = poll_cb (); 1438 RETVAL = poll_cb ();
1137 OUTPUT: 1439 OUTPUT:
1138 RETVAL 1440 RETVAL
1139 1441
1140int 1442int
1141poll_fileno() 1443poll_fileno ()
1142 PROTOTYPE:
1143 CODE: 1444 CODE:
1144 RETVAL = respipe [0]; 1445 RETVAL = s_epipe_fd (&respipe);
1145 OUTPUT: 1446 OUTPUT:
1146 RETVAL 1447 RETVAL
1147 1448
1148int 1449int
1149poll_cb(...) 1450poll_cb (...)
1150 PROTOTYPE: 1451 PROTOTYPE:
1151 CODE: 1452 CODE:
1152 RETVAL = poll_cb (); 1453 RETVAL = poll_cb ();
1153 OUTPUT: 1454 OUTPUT:
1154 RETVAL 1455 RETVAL
1155 1456
1156void 1457void
1157poll_wait() 1458poll_wait ()
1158 PROTOTYPE:
1159 CODE: 1459 CODE:
1160 poll_wait (); 1460 poll_wait ();
1161 1461
1162int 1462int
1163nreqs() 1463nreqs ()
1164 PROTOTYPE:
1165 CODE: 1464 CODE:
1166 RETVAL = eio_nreqs (); 1465 RETVAL = eio_nreqs ();
1167 OUTPUT: 1466 OUTPUT:
1168 RETVAL 1467 RETVAL
1169 1468
1170int 1469int
1171nready() 1470nready ()
1172 PROTOTYPE:
1173 CODE: 1471 CODE:
1174 RETVAL = eio_nready (); 1472 RETVAL = eio_nready ();
1175 OUTPUT: 1473 OUTPUT:
1176 RETVAL 1474 RETVAL
1177 1475
1178int 1476int
1179npending() 1477npending ()
1180 PROTOTYPE:
1181 CODE: 1478 CODE:
1182 RETVAL = eio_npending (); 1479 RETVAL = eio_npending ();
1183 OUTPUT: 1480 OUTPUT:
1184 RETVAL 1481 RETVAL
1185 1482
1186int 1483int
1187nthreads() 1484nthreads ()
1188 PROTOTYPE:
1189 CODE: 1485 CODE:
1190 RETVAL = eio_nthreads (); 1486 RETVAL = eio_nthreads ();
1191 OUTPUT: 1487 OUTPUT:
1192 RETVAL 1488 RETVAL
1193 1489
1194int 1490int
1195fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1491fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1196 PROTOTYPE: $$$$
1197 CODE: 1492 CODE:
1198#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1199 RETVAL = posix_fadvise (fh, offset, length, advice); 1493 RETVAL = posix_fadvise (fh, offset, length, advice);
1200#else
1201 RETVAL = errno = ENOSYS;
1202#endif
1203 OUTPUT: 1494 OUTPUT:
1204 RETVAL 1495 RETVAL
1205 1496
1206ssize_t 1497ssize_t
1207sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1498sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1208 PROTOTYPE: $$$$
1209 CODE: 1499 CODE:
1210 eio_sendfile_sync (ofh, ifh, offset, count); 1500 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1501 OUTPUT:
1502 RETVAL
1503
1504void
1505mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1506 PPCODE:
1507 sv_unmagic (scalar, MMAP_MAGIC);
1508{
1509 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1510 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1511 if (addr == (void *)-1)
1512 XSRETURN_NO;
1513
1514 sv_force_normal (scalar);
1515
1516 /* we store the length in mg_obj, as namlen is I32 :/ */
1517 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1518 ->mg_obj = (SV *)length;
1519
1520 SvUPGRADE (scalar, SVt_PV); /* nop... */
1521
1522 if (!(prot & PROT_WRITE))
1523 SvREADONLY_on (scalar);
1524
1525 if (SvLEN (scalar))
1526 Safefree (SvPVX (scalar));
1527
1528 SvPVX (scalar) = (char *)addr;
1529 SvCUR_set (scalar, length);
1530 SvLEN_set (scalar, 0);
1531 SvPOK_only (scalar);
1532
1533 XSRETURN_YES;
1534}
1535
1536void
1537munmap (SV *scalar)
1538 CODE:
1539 sv_unmagic (scalar, MMAP_MAGIC);
1540
1541int
1542madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1543 ALIAS:
1544 mprotect = 1
1545 CODE:
1546{
1547 STRLEN svlen;
1548 void *addr = SvPVbyte (scalar, svlen);
1549 size_t len = SvUV (length);
1550
1551 if (offset < 0)
1552 offset += svlen;
1553
1554 if (offset < 0 || offset > svlen)
1555 croak ("offset outside of scalar");
1556
1557 if (!SvOK (length) || len + offset > svlen)
1558 len = svlen - offset;
1559
1560 addr = (void *)(((intptr_t)addr) + offset);
1561 eio_page_align (&addr, &len);
1562
1563 switch (ix)
1564 {
1565 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1566 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1567 }
1568}
1569 OUTPUT:
1570 RETVAL
1571
1572int
1573munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1574 CODE:
1575{
1576 STRLEN svlen;
1577 void *addr = SvPVbyte (scalar, svlen);
1578 size_t len = SvUV (length);
1579
1580 if (offset < 0)
1581 offset += svlen;
1582
1583 if (offset < 0 || offset > svlen)
1584 croak ("offset outside of scalar");
1585
1586 if (!SvOK (length) || len + offset > svlen)
1587 len = svlen - offset;
1588
1589 addr = (void *)(((intptr_t)addr) + offset);
1590 eio_page_align (&addr, &len);
1591#if _POSIX_MEMLOCK_RANGE
1592 RETVAL = munlock (addr, len);
1593#else
1594 RETVAL = ((errno = ENOSYS), -1);
1595#endif
1596}
1597 OUTPUT:
1598 RETVAL
1599
1600int
1601munlockall ()
1602 CODE:
1603#if _POSIX_MEMLOCK
1604 munlockall ();
1605#else
1606 RETVAL = -1;
1607 errno = ENOSYS;
1608#endif
1609 OUTPUT:
1610 RETVAL
1211 1611
1212void _on_next_submit (SV *cb) 1612void _on_next_submit (SV *cb)
1213 CODE: 1613 CODE:
1214 SvREFCNT_dec (on_next_submit); 1614 SvREFCNT_dec (on_next_submit);
1215 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1615 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
… …
1230 if (GIMME_V != G_VOID) 1630 if (GIMME_V != G_VOID)
1231 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1631 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1232 1632
1233 if (items > 1) 1633 if (items > 1)
1234 { 1634 {
1235 SV *cb_cv = get_cb (callback); 1635 SV *cb_cv =get_cb (callback);
1236 1636
1237 SvREFCNT_dec (req->callback); 1637 SvREFCNT_dec (req->callback);
1238 req->callback = SvREFCNT_inc (cb_cv); 1638 req->callback = SvREFCNT_inc (cb_cv);
1239 } 1639 }
1240} 1640}

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