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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 1.181 by root, Tue Feb 15 03:21:41 2011 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_MEMLOCK_RANGE || _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; \
116 SV *self; 119 SV *self;
117 120
118#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
119 122
123#include "libeio/config.h"
120#include "libeio/eio.h" 124#include "libeio/eio.h"
121 125
122#ifndef POSIX_FADV_NORMAL 126#ifndef POSIX_FADV_NORMAL
123# define POSIX_FADV_NORMAL 0 127# define POSIX_FADV_NORMAL 0
124# 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#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)
145#endif 273#endif
146 274
147static int req_invoke (eio_req *req); 275static int req_invoke (eio_req *req);
148#define EIO_FINISH(req) req_invoke (req) 276#define EIO_FINISH(req) req_invoke (req)
149static void req_destroy (eio_req *grp); 277static void req_destroy (eio_req *grp);
… …
160 288
161static SV *on_next_submit; 289static SV *on_next_submit;
162static int next_pri = EIO_PRI_DEFAULT; 290static int next_pri = EIO_PRI_DEFAULT;
163static int max_outstanding; 291static int max_outstanding;
164 292
165static int respipe_osf [2], respipe [2] = { -1, -1 }; 293static s_epipe respipe;
166 294
167static void req_destroy (aio_req req); 295static void req_destroy (aio_req req);
168static void req_cancel (aio_req req); 296static void req_cancel (aio_req req);
169 297
170static void want_poll (void) 298static void want_poll (void)
171{ 299{
172 /* write a dummy byte to the pipe so fh becomes ready */ 300 /* write a dummy byte to the pipe so fh becomes ready */
173 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 301 s_epipe_signal (&respipe);
174} 302}
175 303
176static void done_poll (void) 304static void done_poll (void)
177{ 305{
178 /* read any signals sent by the worker threads */ 306 /* read any signals sent by the worker threads */
179 char buf [4]; 307 s_epipe_drain (&respipe);
180 while (respipe_read (respipe [0], buf, 4) == 4)
181 ;
182} 308}
183 309
184/* must be called at most once */ 310/* must be called at most once */
185static SV *req_sv (aio_req req, const char *klass) 311static SV *req_sv (aio_req req, HV *stash)
186{ 312{
187 if (!req->self) 313 if (!req->self)
188 { 314 {
189 req->self = (SV *)newHV (); 315 req->self = (SV *)newHV ();
190 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 316 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
191 } 317 }
192 318
193 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 319 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
194} 320}
195 321
196static aio_req SvAIO_REQ (SV *sv) 322static aio_req SvAIO_REQ (SV *sv)
197{ 323{
198 MAGIC *mg; 324 MAGIC *mg;
199 325
200 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")))
201 croak ("object of class " AIO_REQ_KLASS " expected"); 330 croak ("object of class IO::AIO::REQ expected");
202 331
203 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 332 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
204 333
205 return mg ? (aio_req)mg->mg_ptr : 0; 334 return mg ? (aio_req)mg->mg_ptr : 0;
206} 335}
… …
212 dSP; 341 dSP;
213 342
214 ENTER; 343 ENTER;
215 SAVETMPS; 344 SAVETMPS;
216 PUSHMARK (SP); 345 PUSHMARK (SP);
217 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 346 XPUSHs (req_sv (grp, aio_grp_stash));
218 PUTBACK; 347 PUTBACK;
219 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 348 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
220 SPAGAIN; 349 SPAGAIN;
221 FREETMPS; 350 FREETMPS;
222 LEAVE; 351 LEAVE;
… …
240 } 369 }
241} 370}
242 371
243static int req_invoke (eio_req *req) 372static int req_invoke (eio_req *req)
244{ 373{
245 dSP;
246
247 if (req->flags & FLAG_SV2_RO_OFF) 374 if (req->flags & FLAG_SV2_RO_OFF)
248 SvREADONLY_off (req->sv2); 375 SvREADONLY_off (req->sv2);
249 376
250 if (!EIO_CANCELLED (req) && req->callback) 377 if (!EIO_CANCELLED (req) && req->callback)
251 { 378 {
379 dSP;
380 static SV *sv_result_cache; /* caches the result integer SV */
381 SV *sv_result;
382
252 ENTER; 383 ENTER;
253 SAVETMPS; 384 SAVETMPS;
254 PUSHMARK (SP); 385 PUSHMARK (SP);
255 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 }
256 400
257 switch (req->type) 401 switch (req->type)
258 { 402 {
259 case EIO_READDIR: 403 case EIO_READDIR:
260 { 404 {
… …
328 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 472 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
329 char sym [64]; 473 char sym [64];
330 int symlen; 474 int symlen;
331 475
332 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); 476 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
333 gv_init (gv, stash, sym, symlen, 0); 477 gv_init (gv, aio_stash, sym, symlen, 0);
334 478
335 symlen = snprintf ( 479 symlen = snprintf (
336 sym, 480 sym,
337 sizeof (sym), 481 sizeof (sym),
338 "%s&=%d", 482 "%s&=%d",
… …
346 490
347 PUSHs (fh); 491 PUSHs (fh);
348 } 492 }
349 break; 493 break;
350 494
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
351 case EIO_GROUP: 525 case EIO_GROUP:
352 req->int1 = 2; /* mark group as finished */ 526 req->int1 = 2; /* mark group as finished */
353 527
354 if (req->sv1) 528 if (req->sv1)
355 { 529 {
… …
375 case EIO_LSTAT: 549 case EIO_LSTAT:
376 case EIO_FSTAT: 550 case EIO_FSTAT:
377 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 551 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
378 PL_laststatval = req->result; 552 PL_laststatval = req->result;
379 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 553 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
380 PUSHs (sv_2mortal (newSViv (req->result))); 554 PUSHs (sv_result);
381 break; 555 break;
382 556
383 case EIO_READ: 557 case EIO_READ:
384 { 558 {
385 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));
386 *SvEND (req->sv2) = 0; 560 *SvEND (req->sv2) = 0;
387 SvPOK_only (req->sv2); 561 SvPOK_only (req->sv2);
388 SvSETMAGIC (req->sv2); 562 SvSETMAGIC (req->sv2);
389 PUSHs (sv_2mortal (newSViv (req->result))); 563 PUSHs (sv_result);
390 } 564 }
391 break; 565 break;
392 566
393 case EIO_DUP2: 567 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
394 if (req->result > 0) 568 if (req->result > 0)
395 req->result = 0; 569 SvIV_set (sv_result, 0);
396 /* FALLTHROUGH */ 570 /* FALLTHROUGH */
397 571
398 default: 572 default:
399 PUSHs (sv_2mortal (newSViv (req->result))); 573 PUSHs (sv_result);
400 break; 574 break;
401 } 575 }
402 576
403 errno = req->errorno; 577 errno = req->errorno;
404 578
405 PUTBACK; 579 PUTBACK;
406 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 580 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
407 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;
408 587
409 FREETMPS; 588 FREETMPS;
410 LEAVE; 589 LEAVE;
411 590
412 PUTBACK; 591 PUTBACK;
… …
441 grp->sv2 = 0; 620 grp->sv2 = 0;
442 621
443 eio_grp_cancel (grp); 622 eio_grp_cancel (grp);
444} 623}
445 624
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 625static void
453create_respipe (void) 626create_respipe (void)
454{ 627{
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)) 628 if (s_epipe_renew (&respipe))
464#endif
465 croak ("unable to initialize result pipe"); 629 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} 630}
489 631
490static void poll_wait (void) 632static void poll_wait (void)
491{ 633{
492 fd_set rfd;
493
494 while (eio_nreqs ()) 634 while (eio_nreqs ())
495 { 635 {
496 int size; 636 int size;
497 637
498 X_LOCK (reslock); 638 X_LOCK (reslock);
… …
502 if (size) 642 if (size)
503 return; 643 return;
504 644
505 etp_maybe_start_thread (); 645 etp_maybe_start_thread ();
506 646
507 FD_ZERO (&rfd); 647 s_epipe_wait (&respipe);
508 FD_SET (respipe [0], &rfd);
509
510 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
511 } 648 }
512} 649}
513 650
514static int poll_cb (void) 651static int poll_cb (void)
515{ 652{
… …
529 666
530static void atfork_child (void) 667static void atfork_child (void)
531{ 668{
532 create_respipe (); 669 create_respipe ();
533} 670}
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/*****************************************************************************/
534 716
535static SV * 717static SV *
536get_cb (SV *cb_sv) 718get_cb (SV *cb_sv)
537{ 719{
538 SvGETMAGIC (cb_sv); 720 SvGETMAGIC (cb_sv);
… …
558 PUTBACK; \ 740 PUTBACK; \
559 req_submit (req); \ 741 req_submit (req); \
560 SPAGAIN; \ 742 SPAGAIN; \
561 \ 743 \
562 if (GIMME_V != G_VOID) \ 744 if (GIMME_V != G_VOID) \
563 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 745 XPUSHs (req_sv (req, aio_req_stash));
564 746
565MODULE = IO::AIO PACKAGE = IO::AIO 747MODULE = IO::AIO PACKAGE = IO::AIO
566 748
567PROTOTYPES: ENABLE 749PROTOTYPES: ENABLE
568 750
… …
570{ 752{
571 static const struct { 753 static const struct {
572 const char *name; 754 const char *name;
573 IV iv; 755 IV iv;
574 } *civ, const_iv[] = { 756 } *civ, const_iv[] = {
575# 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 },
576# define const_eio(name) { # name, (IV) EIO_ ## name }, 759# define const_eio(name) { # name, (IV) EIO_ ## name },
577 const_iv (EXDEV , EXDEV) 760 const_iv (EXDEV)
578 const_iv (ENOSYS , ENOSYS) 761 const_iv (ENOSYS)
579 const_iv (O_RDONLY, O_RDONLY) 762 const_iv (O_RDONLY)
580 const_iv (O_WRONLY, O_WRONLY) 763 const_iv (O_WRONLY)
764 const_iv (O_RDWR)
581 const_iv (O_CREAT , O_CREAT) 765 const_iv (O_CREAT)
582 const_iv (O_TRUNC , O_TRUNC) 766 const_iv (O_TRUNC)
583#ifndef _WIN32 767 const_iv (O_EXCL)
768 const_iv (O_APPEND)
769
584 const_iv (S_IFIFO , S_IFIFO) 770 const_iv (S_IFIFO)
585#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
586 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 780 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
587 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 781 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
588 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 782 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
589 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 783 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
590 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 784 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
591 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)
592 831
593 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 832 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
594 const_eio (SYNC_FILE_RANGE_WRITE) 833 const_eio (SYNC_FILE_RANGE_WRITE)
595 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 834 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
596 835
… …
608 const_eio (DT_LNK) 847 const_eio (DT_LNK)
609 const_eio (DT_SOCK) 848 const_eio (DT_SOCK)
610 const_eio (DT_WHT) 849 const_eio (DT_WHT)
611 }; 850 };
612 851
613 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);
614 855
615 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; )
616 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));
617 860
618 create_respipe (); 861 create_respipe ();
619 862
620 if (eio_init (want_poll, done_poll) < 0) 863 if (eio_init (want_poll, done_poll) < 0)
621 croak ("IO::AIO: unable to initialise eio library"); 864 croak ("IO::AIO: unable to initialise eio library");
… …
623 /* atfork child called in fifo order, so before eio's handler */ 866 /* atfork child called in fifo order, so before eio's handler */
624 X_THREAD_ATFORK (0, 0, atfork_child); 867 X_THREAD_ATFORK (0, 0, atfork_child);
625} 868}
626 869
627void 870void
628max_poll_reqs (int nreqs) 871max_poll_reqs (unsigned int nreqs)
629 PROTOTYPE: $ 872 PROTOTYPE: $
630 CODE: 873 CODE:
631 eio_set_max_poll_reqs (nreqs); 874 eio_set_max_poll_reqs (nreqs);
632 875
633void 876void
… …
635 PROTOTYPE: $ 878 PROTOTYPE: $
636 CODE: 879 CODE:
637 eio_set_max_poll_time (nseconds); 880 eio_set_max_poll_time (nseconds);
638 881
639void 882void
640min_parallel (int nthreads) 883min_parallel (unsigned int nthreads)
641 PROTOTYPE: $ 884 PROTOTYPE: $
642 CODE: 885 CODE:
643 eio_set_min_parallel (nthreads); 886 eio_set_min_parallel (nthreads);
644 887
645void 888void
646max_parallel (int nthreads) 889max_parallel (unsigned int nthreads)
647 PROTOTYPE: $ 890 PROTOTYPE: $
648 CODE: 891 CODE:
649 eio_set_max_parallel (nthreads); 892 eio_set_max_parallel (nthreads);
650 893
651void 894void
652max_idle (int nthreads) 895max_idle (unsigned int nthreads)
653 PROTOTYPE: $ 896 PROTOTYPE: $
654 CODE: 897 CODE:
655 eio_set_max_idle (nthreads); 898 eio_set_max_idle (nthreads);
656 899
657void 900void
901idle_timeout (unsigned int seconds)
902 PROTOTYPE: $
903 CODE:
904 eio_set_idle_timeout (seconds);
905
906void
658max_outstanding (int maxreqs) 907max_outstanding (unsigned int maxreqs)
659 PROTOTYPE: $ 908 PROTOTYPE: $
660 CODE: 909 CODE:
661 max_outstanding = maxreqs; 910 max_outstanding = maxreqs;
662 911
663void 912void
664aio_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)
665 PROTOTYPE: $$$;$
666 PPCODE: 914 PPCODE:
667{ 915{
668 dREQ; 916 dREQ;
669 917
670 req->type = EIO_OPEN; 918 req->type = EIO_OPEN;
… …
676 REQ_SEND; 924 REQ_SEND;
677} 925}
678 926
679void 927void
680aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 928aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
681 PROTOTYPE: $;$
682 ALIAS: 929 ALIAS:
683 aio_fsync = EIO_FSYNC 930 aio_fsync = EIO_FSYNC
684 aio_fdatasync = EIO_FDATASYNC 931 aio_fdatasync = EIO_FDATASYNC
685 PPCODE: 932 PPCODE:
686{ 933{
… …
694 REQ_SEND (req); 941 REQ_SEND (req);
695} 942}
696 943
697void 944void
698aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 945aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $$$$;$
700 PPCODE: 946 PPCODE:
701{ 947{
702 int fd = s_fileno_croak (fh, 0); 948 int fd = s_fileno_croak (fh, 0);
703 dREQ; 949 dREQ;
704 950
… …
712 REQ_SEND (req); 958 REQ_SEND (req);
713} 959}
714 960
715void 961void
716aio_close (SV *fh, SV *callback=&PL_sv_undef) 962aio_close (SV *fh, SV *callback=&PL_sv_undef)
717 PROTOTYPE: $;$
718 PPCODE: 963 PPCODE:
719{ 964{
720 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 965 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
721 int fd = s_fileno_croak (fh, 0); 966 int fd = s_fileno_croak (fh, 0);
722 dREQ; 967 dREQ;
… …
744void 989void
745aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 990aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
746 ALIAS: 991 ALIAS:
747 aio_read = EIO_READ 992 aio_read = EIO_READ
748 aio_write = EIO_WRITE 993 aio_write = EIO_WRITE
749 PROTOTYPE: $$$$$;$
750 PPCODE: 994 PPCODE:
751{ 995{
752 STRLEN svlen; 996 STRLEN svlen;
753 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 997 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
754 char *svptr = SvPVbyte (data, svlen); 998 char *svptr = SvPVbyte (data, svlen);
… …
795 } 1039 }
796} 1040}
797 1041
798void 1042void
799aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1043aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
800 PROTOTYPE: $$;$
801 PPCODE: 1044 PPCODE:
802{ 1045{
803 SV *data; 1046 SV *data;
804 dREQ; 1047 dREQ;
805 1048
… …
810 REQ_SEND; 1053 REQ_SEND;
811} 1054}
812 1055
813void 1056void
814aio_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)
815 PROTOTYPE: $$$$;$
816 PPCODE: 1058 PPCODE:
817{ 1059{
818 int ifd = s_fileno_croak (in_fh , 0); 1060 int ifd = s_fileno_croak (in_fh , 0);
819 int ofd = s_fileno_croak (out_fh, 1); 1061 int ofd = s_fileno_croak (out_fh, 1);
820 dREQ; 1062 dREQ;
… …
830 REQ_SEND; 1072 REQ_SEND;
831} 1073}
832 1074
833void 1075void
834aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1076aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
835 PROTOTYPE: $$$;$
836 PPCODE: 1077 PPCODE:
837{ 1078{
838 int fd = s_fileno_croak (fh, 0); 1079 int fd = s_fileno_croak (fh, 0);
839 dREQ; 1080 dREQ;
840 1081
… …
848} 1089}
849 1090
850void 1091void
851aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1092aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
852 ALIAS: 1093 ALIAS:
853 aio_stat = EIO_STAT 1094 aio_stat = EIO_STAT
854 aio_lstat = EIO_LSTAT 1095 aio_lstat = EIO_LSTAT
1096 aio_statvfs = EIO_STATVFS
855 PPCODE: 1097 PPCODE:
856{ 1098{
857 dREQ; 1099 dREQ;
858 1100
859 req->sv1 = newSVsv (fh_or_path); 1101 req->sv1 = newSVsv (fh_or_path);
… …
863 req->type = ix; 1105 req->type = ix;
864 req->ptr1 = SvPVbyte_nolen (req->sv1); 1106 req->ptr1 = SvPVbyte_nolen (req->sv1);
865 } 1107 }
866 else 1108 else
867 { 1109 {
868 req->type = EIO_FSTAT; 1110 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
869 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1111 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
870 } 1112 }
871 1113
872 REQ_SEND; 1114 REQ_SEND;
873} 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
874 1132
875void 1133void
876aio_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)
877 PPCODE: 1135 PPCODE:
878{ 1136{
… …
1036 1294
1037 REQ_SEND; 1295 REQ_SEND;
1038} 1296}
1039 1297
1040void 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
1041aio_busy (double delay, SV *callback=&PL_sv_undef) 1373aio_busy (double delay, SV *callback=&PL_sv_undef)
1042 PPCODE: 1374 PPCODE:
1043{ 1375{
1044 dREQ; 1376 dREQ;
1045 1377
… …
1049 REQ_SEND; 1381 REQ_SEND;
1050} 1382}
1051 1383
1052void 1384void
1053aio_group (SV *callback=&PL_sv_undef) 1385aio_group (SV *callback=&PL_sv_undef)
1054 PROTOTYPE: ;$
1055 PPCODE: 1386 PPCODE:
1056{ 1387{
1057 dREQ; 1388 dREQ;
1058 1389
1059 req->type = EIO_GROUP; 1390 req->type = EIO_GROUP;
1060 1391
1061 req_submit (req); 1392 req_submit (req);
1062 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1393 XPUSHs (req_sv (req, aio_grp_stash));
1063} 1394}
1064 1395
1065void 1396void
1066aio_nop (SV *callback=&PL_sv_undef) 1397aio_nop (SV *callback=&PL_sv_undef)
1067 ALIAS: 1398 ALIAS:
… …
1076 REQ_SEND; 1407 REQ_SEND;
1077} 1408}
1078 1409
1079int 1410int
1080aioreq_pri (int pri = 0) 1411aioreq_pri (int pri = 0)
1081 PROTOTYPE: ;$
1082 CODE: 1412 CODE:
1083 RETVAL = next_pri; 1413 RETVAL = next_pri;
1084 if (items > 0) 1414 if (items > 0)
1085 { 1415 {
1086 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1416 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1098 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1428 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1099 next_pri = nice; 1429 next_pri = nice;
1100 1430
1101void 1431void
1102flush () 1432flush ()
1103 PROTOTYPE:
1104 CODE: 1433 CODE:
1105 while (eio_nreqs ()) 1434 while (eio_nreqs ())
1106 { 1435 {
1107 poll_wait (); 1436 poll_wait ();
1108 poll_cb (); 1437 poll_cb ();
1109 } 1438 }
1110 1439
1111int 1440int
1112poll() 1441poll ()
1113 PROTOTYPE:
1114 CODE: 1442 CODE:
1115 poll_wait (); 1443 poll_wait ();
1116 RETVAL = poll_cb (); 1444 RETVAL = poll_cb ();
1117 OUTPUT: 1445 OUTPUT:
1118 RETVAL 1446 RETVAL
1119 1447
1120int 1448int
1121poll_fileno() 1449poll_fileno ()
1122 PROTOTYPE:
1123 CODE: 1450 CODE:
1124 RETVAL = respipe [0]; 1451 RETVAL = s_epipe_fd (&respipe);
1125 OUTPUT: 1452 OUTPUT:
1126 RETVAL 1453 RETVAL
1127 1454
1128int 1455int
1129poll_cb(...) 1456poll_cb (...)
1130 PROTOTYPE: 1457 PROTOTYPE:
1131 CODE: 1458 CODE:
1132 RETVAL = poll_cb (); 1459 RETVAL = poll_cb ();
1133 OUTPUT: 1460 OUTPUT:
1134 RETVAL 1461 RETVAL
1135 1462
1136void 1463void
1137poll_wait() 1464poll_wait ()
1138 PROTOTYPE:
1139 CODE: 1465 CODE:
1140 poll_wait (); 1466 poll_wait ();
1141 1467
1142int 1468int
1143nreqs() 1469nreqs ()
1144 PROTOTYPE:
1145 CODE: 1470 CODE:
1146 RETVAL = eio_nreqs (); 1471 RETVAL = eio_nreqs ();
1147 OUTPUT: 1472 OUTPUT:
1148 RETVAL 1473 RETVAL
1149 1474
1150int 1475int
1151nready() 1476nready ()
1152 PROTOTYPE:
1153 CODE: 1477 CODE:
1154 RETVAL = eio_nready (); 1478 RETVAL = eio_nready ();
1155 OUTPUT: 1479 OUTPUT:
1156 RETVAL 1480 RETVAL
1157 1481
1158int 1482int
1159npending() 1483npending ()
1160 PROTOTYPE:
1161 CODE: 1484 CODE:
1162 RETVAL = eio_npending (); 1485 RETVAL = eio_npending ();
1163 OUTPUT: 1486 OUTPUT:
1164 RETVAL 1487 RETVAL
1165 1488
1166int 1489int
1167nthreads() 1490nthreads ()
1168 PROTOTYPE:
1169 CODE: 1491 CODE:
1170 RETVAL = eio_nthreads (); 1492 RETVAL = eio_nthreads ();
1171 OUTPUT: 1493 OUTPUT:
1172 RETVAL 1494 RETVAL
1173 1495
1174int 1496int
1175fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1497fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1176 PROTOTYPE: $$$$
1177 CODE: 1498 CODE:
1178#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1179 RETVAL = posix_fadvise (fh, offset, length, advice); 1499 RETVAL = posix_fadvise (fh, offset, length, advice);
1180#else
1181 RETVAL = errno = ENOSYS;
1182#endif
1183 OUTPUT: 1500 OUTPUT:
1184 RETVAL 1501 RETVAL
1185 1502
1186ssize_t 1503ssize_t
1187sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1504sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1188 PROTOTYPE: $$$$
1189 CODE: 1505 CODE:
1190 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
1191 1617
1192void _on_next_submit (SV *cb) 1618void _on_next_submit (SV *cb)
1193 CODE: 1619 CODE:
1194 SvREFCNT_dec (on_next_submit); 1620 SvREFCNT_dec (on_next_submit);
1195 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1621 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;

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