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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 2010 UTC vs.
Revision 1.193 by root, Mon Jul 25 16:51:07 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>
17#include <limits.h> 16#include <limits.h>
18#include <fcntl.h> 17#include <fcntl.h>
19#include <sched.h> 18#include <sched.h>
20 19
21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h> 21# include <sys/mman.h>
23#endif 22#endif
24 23
25/* perl namespace pollution */ 24/* perl namespace pollution */
26#undef VERSION 25#undef VERSION
27
28#ifdef _WIN32
29
30# define EIO_STRUCT_DIRENT Direntry_t
31# undef malloc
32# undef free
33
34// perl overrides all those nice win32 functions
35# undef open
36# undef read
37# undef write
38# undef send
39# undef recv
40# undef stat
41# undef fstat
42# define lstat stat
43# undef truncate
44# undef ftruncate
45# undef open
46# undef close
47# undef unlink
48# undef rmdir
49# undef rename
50# undef lseek
51
52# define chown(a,b,c) (errno = ENOSYS, -1)
53# define fchown(a,b,c) (errno = ENOSYS, -1)
54# define fchmod(a,b) (errno = ENOSYS, -1)
55# define symlink(a,b) (errno = ENOSYS, -1)
56# define readlink(a,b,c) (errno = ENOSYS, -1)
57# define mknod(a,b,c) (errno = ENOSYS, -1)
58# define truncate(a,b) (errno = ENOSYS, -1)
59# define ftruncate(fd,o) chsize ((fd), (o))
60# define fsync(fd) _commit (fd)
61# define opendir(fd) (errno = ENOSYS, 0)
62# define readdir(fd) (errno = ENOSYS, -1)
63# define closedir(fd) (errno = ENOSYS, -1)
64# define mkdir(a,b) mkdir (a)
65
66#else
67
68# include <sys/time.h>
69# include <sys/select.h>
70# include <unistd.h>
71# include <utime.h>
72# include <signal.h>
73# define EIO_STRUCT_DIRENT struct dirent
74
75#endif
76 26
77/* perl stupidly overrides readdir and maybe others */ 27/* perl stupidly overrides readdir and maybe others */
78/* with thread-unsafe versions, imagine that :( */ 28/* with thread-unsafe versions, imagine that :( */
79#undef readdir 29#undef readdir
80#undef opendir 30#undef opendir
81#undef closedir 31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
67#else
68
69 #include <sys/time.h>
70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
82 76
83#define EIO_STRUCT_STAT Stat_t 77#define EIO_STRUCT_STAT Stat_t
84 78
85/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
86#if IVSIZE >= 8 80#if IVSIZE >= 8
… …
118 STRLEN stroffset; \ 112 STRLEN stroffset; \
119 SV *self; 113 SV *self;
120 114
121#define EIO_NO_WRAPPERS 1 115#define EIO_NO_WRAPPERS 1
122 116
117#include "libeio/config.h"
123#include "libeio/eio.h" 118#include "libeio/eio.h"
119
120static int req_invoke (eio_req *req);
121#define EIO_FINISH(req) req_invoke (req)
122static void req_destroy (eio_req *grp);
123#define EIO_DESTROY(req) req_destroy (req)
124
125#include "libeio/eio.c"
126
127/* Linux/others */
128#ifndef O_ASYNC
129# define O_ASYNC 0
130#endif
131#ifndef O_DIRECT
132# define O_DIRECT 0
133#endif
134#ifndef O_NOATIME
135# define O_NOATIME 0
136#endif
137
138/* POSIX */
139#ifndef O_CLOEXEC
140# define O_CLOEXEC 0
141#endif
142#ifndef O_NOFOLLOW
143# define O_NOFOLLOW 0
144#endif
145#ifndef O_NOCTTY
146# define O_NOCTTY 0
147#endif
148#ifndef O_NONBLOCK
149# define O_NONBLOCK 0
150#endif
151#ifndef O_EXEC
152# define O_EXEC 0
153#endif
154#ifndef O_SEARCH
155# define O_SEARCH 0
156#endif
157#ifndef O_DIRECTORY
158# define O_DIRECTORY 0
159#endif
160#ifndef O_DSYNC
161# define O_DSYNC 0
162#endif
163#ifndef O_RSYNC
164# define O_RSYNC 0
165#endif
166#ifndef O_SYNC
167# define O_SYNC 0
168#endif
169#ifndef O_TTY_INIT
170# define O_TTY_INIT 0
171#endif
124 172
125#ifndef POSIX_FADV_NORMAL 173#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0 174# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif 175#endif
129#ifndef POSIX_FADV_SEQUENTIAL 176#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0 177# define POSIX_FADV_SEQUENTIAL 0
131#endif 178#endif
132#ifndef POSIX_FADV_RANDOM 179#ifndef POSIX_FADV_RANDOM
… …
140#endif 187#endif
141#ifndef POSIX_FADV_DONTNEED 188#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 189# define POSIX_FADV_DONTNEED 0
143#endif 190#endif
144 191
192#if !HAVE_POSIX_FADVISE
193# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
194#endif
195
196#ifndef POSIX_MADV_NORMAL
197# define POSIX_MADV_NORMAL 0
198#endif
199#ifndef POSIX_MADV_SEQUENTIAL
200# define POSIX_MADV_SEQUENTIAL 0
201#endif
202#ifndef POSIX_MADV_RANDOM
203# define POSIX_MADV_RANDOM 0
204#endif
205#ifndef POSIX_MADV_WILLNEED
206# define POSIX_MADV_WILLNEED 0
207#endif
208#ifndef POSIX_MADV_DONTNEED
209# define POSIX_MADV_DONTNEED 0
210#endif
211
212#if !HAVE_POSIX_MADVISE
213# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
214#endif
215
216#ifndef PROT_NONE
217# define PROT_NONE 0
218#endif
219#ifndef PROT_READ
220# define PROT_READ 0
221#endif
222#ifndef PROT_WRITE
223# define PROT_READ 0
224#endif
225#ifndef PROT_EXEC
226# define PROT_EXEC 0
227#endif
228
229#ifndef ST_RDONLY
230# define ST_RDONLY 0
231#endif
232#ifndef ST_NOSUID
233# define ST_NOSUID 0
234#endif
145#ifndef ST_NODEV 235#ifndef ST_NODEV
146# define ST_NODEV 0 236# define ST_NODEV 0
147#endif 237#endif
148#ifndef ST_NOEXEC 238#ifndef ST_NOEXEC
149# define ST_NOEXEC 0 239# define ST_NOEXEC 0
… …
171#endif 261#endif
172#ifndef ST_RELATIME 262#ifndef ST_RELATIME
173# define ST_RELATIME 0 263# define ST_RELATIME 0
174#endif 264#endif
175 265
176#ifndef MCL_CURRENT 266#ifndef S_IFIFO
177# define MCL_CURRENT 0 267# define S_IFIFO 0
178#endif 268#endif
179#ifndef MCL_FUTURE 269#ifndef S_IFCHR
180# define MCL_FUTURE 0 270# define S_IFCHR 0
271#endif
272#ifndef S_IFBLK
273# define S_IFBLK 0
274#endif
275#ifndef S_IFLNK
276# define S_IFLNK 0
277#endif
278#ifndef S_IFREG
279# define S_IFREG 0
280#endif
281#ifndef S_IFDIR
282# define S_IFDIR 0
283#endif
284#ifndef S_IFWHT
285# define S_IFWHT 0
286#endif
287#ifndef S_IFSOCK
288# define S_IFSOCK 0
181#endif 289#endif
182 290
183#ifndef MAP_ANONYMOUS 291#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON 292# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON 293# define MAP_ANONYMOUS MAP_ANON
… …
201#endif 309#endif
202#ifndef MAP_NONBLOCK 310#ifndef MAP_NONBLOCK
203# define MAP_NONBLOCK 0 311# define MAP_NONBLOCK 0
204#endif 312#endif
205 313
314#ifndef makedev
315# define makedev(maj,min) (((maj) << 8) | (min))
316#endif
317#ifndef major
318# define major(dev) ((dev) >> 8)
319#endif
320#ifndef minor
321# define minor(dev) ((dev) & 0xff)
322#endif
323
206#ifndef PAGESIZE 324#ifndef PAGESIZE
207# define PAGESIZE sysconf (_SC_PAGESIZE) 325# define PAGESIZE sysconf (_SC_PAGESIZE)
208#endif 326#endif
209
210static int req_invoke (eio_req *req);
211#define EIO_FINISH(req) req_invoke (req)
212static void req_destroy (eio_req *grp);
213#define EIO_DESTROY(req) req_destroy (req)
214 327
215enum { 328enum {
216 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 329 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217}; 330};
218
219#include "libeio/eio.c"
220 331
221typedef eio_req *aio_req; 332typedef eio_req *aio_req;
222typedef eio_req *aio_req_ornot; 333typedef eio_req *aio_req_ornot;
223 334
224static SV *on_next_submit; 335static SV *on_next_submit;
… …
304 } 415 }
305} 416}
306 417
307static int req_invoke (eio_req *req) 418static int req_invoke (eio_req *req)
308{ 419{
309 dSP;
310
311 if (req->flags & FLAG_SV2_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
312 SvREADONLY_off (req->sv2); 421 SvREADONLY_off (req->sv2);
313 422
314 if (!EIO_CANCELLED (req) && req->callback) 423 if (!EIO_CANCELLED (req) && req->callback)
315 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
316 ENTER; 429 ENTER;
317 SAVETMPS; 430 SAVETMPS;
318 PUSHMARK (SP); 431 PUSHMARK (SP);
319 EXTEND (SP, 1); 432 EXTEND (SP, 1);
433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
441 else
442 {
443 sv_result = newSViv (req->result);
444 SvREADONLY_on (sv_result);
445 }
320 446
321 switch (req->type) 447 switch (req->type)
322 { 448 {
323 case EIO_READDIR: 449 case EIO_READDIR:
324 { 450 {
… …
415 case EIO_STATVFS: 541 case EIO_STATVFS:
416 case EIO_FSTATVFS: 542 case EIO_FSTATVFS:
417 { 543 {
418 SV *rv = &PL_sv_undef; 544 SV *rv = &PL_sv_undef;
419 545
546#ifndef _WIN32
420 if (req->result >= 0) 547 if (req->result >= 0)
421 { 548 {
422 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); 549 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423 HV *hv = newHV (); 550 HV *hv = newHV ();
424 551
… …
434 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); 561 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0); 562 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
436 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); 563 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); 564 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438 } 565 }
566#endif
439 567
440 PUSHs (rv); 568 PUSHs (rv);
441 } 569 }
442 570
443 break; 571 break;
… …
459 case EIO_NOP: 587 case EIO_NOP:
460 case EIO_BUSY: 588 case EIO_BUSY:
461 break; 589 break;
462 590
463 case EIO_READLINK: 591 case EIO_READLINK:
592 case EIO_REALPATH:
464 if (req->result > 0) 593 if (req->result > 0)
465 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); 594 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466 break; 595 break;
467 596
468 case EIO_STAT: 597 case EIO_STAT:
469 case EIO_LSTAT: 598 case EIO_LSTAT:
470 case EIO_FSTAT: 599 case EIO_FSTAT:
471 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 600 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
472 PL_laststatval = req->result; 601 PL_laststatval = req->result;
602 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
473 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 603 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474 PUSHs (sv_2mortal (newSViv (req->result))); 604 PUSHs (sv_result);
475 break; 605 break;
476 606
477 case EIO_READ: 607 case EIO_READ:
478 { 608 {
479 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 609 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480 *SvEND (req->sv2) = 0; 610 *SvEND (req->sv2) = 0;
481 SvPOK_only (req->sv2); 611 SvPOK_only (req->sv2);
482 SvSETMAGIC (req->sv2); 612 SvSETMAGIC (req->sv2);
483 PUSHs (sv_2mortal (newSViv (req->result))); 613 PUSHs (sv_result);
484 } 614 }
485 break; 615 break;
486 616
487 case EIO_DUP2: 617 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488 if (req->result > 0) 618 if (req->result > 0)
489 req->result = 0; 619 SvIV_set (sv_result, 0);
490 /* FALLTHROUGH */ 620 /* FALLTHROUGH */
491 621
492 default: 622 default:
493 PUSHs (sv_2mortal (newSViv (req->result))); 623 PUSHs (sv_result);
494 break; 624 break;
495 } 625 }
496 626
497 errno = req->errorno; 627 errno = req->errorno;
498 628
499 PUTBACK; 629 PUTBACK;
500 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 630 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501 SPAGAIN; 631 SPAGAIN;
632
633 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
634 SvREFCNT_dec (sv_result);
635 else
636 sv_result_cache = sv_result;
502 637
503 FREETMPS; 638 FREETMPS;
504 LEAVE; 639 LEAVE;
505 640
506 PUTBACK; 641 PUTBACK;
… …
524 Safefree (req); 659 Safefree (req);
525} 660}
526 661
527static void req_cancel_subs (aio_req grp) 662static void req_cancel_subs (aio_req grp)
528{ 663{
529 aio_req sub;
530
531 if (grp->type != EIO_GROUP) 664 if (grp->type != EIO_GROUP)
532 return; 665 return;
533 666
534 SvREFCNT_dec (grp->sv2); 667 SvREFCNT_dec (grp->sv2);
535 grp->sv2 = 0; 668 grp->sv2 = 0;
536 669
537 eio_grp_cancel (grp); 670 eio_grp_cancel (grp);
538} 671}
539 672
540static void
541create_respipe (void) 673static void create_respipe (void)
542{ 674{
543 if (s_epipe_renew (&respipe)) 675 if (s_epipe_renew (&respipe))
544 croak ("IO::AIO: unable to initialize result pipe"); 676 croak ("IO::AIO: unable to initialize result pipe");
545} 677}
546 678
… …
577 709
578 poll_wait (); 710 poll_wait ();
579 } 711 }
580} 712}
581 713
582static void atfork_child (void) 714static void ecb_cold
715reinit (void)
583{ 716{
584 create_respipe (); 717 create_respipe ();
718
719 if (eio_init (want_poll, done_poll) < 0)
720 croak ("IO::AIO: unable to initialise eio library");
585} 721}
586 722
587/*****************************************************************************/ 723/*****************************************************************************/
588 724
589#if !_POSIX_MAPPED_FILES 725#if !_POSIX_MAPPED_FILES
590# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 726# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591# define munmap(addr,length) (errno = ENOSYS, -1) 727# define munmap(addr,length) (errno = ENOSYS, -1)
592#endif 728#endif
593 729
730#if !_POSIX_MEMORY_PROTECTION
731# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
732# define PROT_NONE 0
733# define PROT_WRITE 0
734# define MAP_PRIVATE 0
735# define MAP_SHARED 0
736# define MAP_FIXED 0
737#endif
738
594#define MMAP_MAGIC PERL_MAGIC_ext 739#define MMAP_MAGIC PERL_MAGIC_ext
595 740
596static int
597mmap_free (pTHX_ SV *sv, MAGIC *mg) 741static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
598{ 742{
599 int old_errno = errno; 743 int old_errno = errno;
600 munmap (mg->mg_ptr, (size_t)mg->mg_obj); 744 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601 errno = old_errno; 745 errno = old_errno;
602 746
603 mg->mg_obj = 0; /* just in case */ 747 mg->mg_obj = 0; /* just in case */
604 748
605 SvREADONLY_off (sv); 749 SvREADONLY_off (sv);
750
751 if (SvPVX (sv) != mg->mg_ptr)
752 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
753
606 SvCUR_set (sv, 0); 754 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0; 755 SvPVX (sv) = 0;
609 SvOK_off (sv); 756 SvOK_off (sv);
610 757
611 return 0; 758 return 0;
612} 759}
… …
615 0, 0, 0, 0, mmap_free 762 0, 0, 0, 0, mmap_free
616}; 763};
617 764
618/*****************************************************************************/ 765/*****************************************************************************/
619 766
620static SV *
621get_cb (SV *cb_sv) 767static SV * get_cb (SV *cb_sv)
622{ 768{
623 SvGETMAGIC (cb_sv); 769 SvGETMAGIC (cb_sv);
624 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 770 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625} 771}
626 772
… …
662# define const_eio(name) { # name, (IV) EIO_ ## name }, 808# define const_eio(name) { # name, (IV) EIO_ ## name },
663 const_iv (EXDEV) 809 const_iv (EXDEV)
664 const_iv (ENOSYS) 810 const_iv (ENOSYS)
665 const_iv (O_RDONLY) 811 const_iv (O_RDONLY)
666 const_iv (O_WRONLY) 812 const_iv (O_WRONLY)
813 const_iv (O_RDWR)
667 const_iv (O_CREAT) 814 const_iv (O_CREAT)
668 const_iv (O_TRUNC) 815 const_iv (O_TRUNC)
669#ifndef _WIN32 816 const_iv (O_EXCL)
817 const_iv (O_APPEND)
818
819 const_iv (O_ASYNC)
820 const_iv (O_DIRECT)
821 const_iv (O_NOATIME)
822
823 const_iv (O_CLOEXEC)
824 const_iv (O_NOCTTY)
825 const_iv (O_NOFOLLOW)
826 const_iv (O_NONBLOCK)
827 const_iv (O_EXEC)
828 const_iv (O_SEARCH)
829 const_iv (O_DIRECTORY)
830 const_iv (O_DSYNC)
831 const_iv (O_RSYNC)
832 const_iv (O_SYNC)
833 const_iv (O_TTY_INIT)
834
670 const_iv (S_IFIFO) 835 const_iv (S_IFIFO)
671#endif 836 const_iv (S_IFCHR)
837 const_iv (S_IFBLK)
838 const_iv (S_IFLNK)
839 const_iv (S_IFREG)
840 const_iv (S_IFDIR)
841 const_iv (S_IFWHT)
842 const_iv (S_IFSOCK)
843 const_iv (S_IFMT)
844
672 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) 845 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 846 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 847 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 848 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 849 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 850 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
851
852 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
853 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
854 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
855 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
856 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678 857
679 const_iv (ST_RDONLY) 858 const_iv (ST_RDONLY)
680 const_iv (ST_NOSUID) 859 const_iv (ST_NOSUID)
681 const_iv (ST_NODEV) 860 const_iv (ST_NODEV)
682 const_iv (ST_NOEXEC) 861 const_iv (ST_NOEXEC)
… …
687 const_iv (ST_IMMUTABLE) 866 const_iv (ST_IMMUTABLE)
688 const_iv (ST_NOATIME) 867 const_iv (ST_NOATIME)
689 const_iv (ST_NODIRATIME) 868 const_iv (ST_NODIRATIME)
690 const_iv (ST_RELATIME) 869 const_iv (ST_RELATIME)
691 870
871 const_iv (PROT_NONE)
692 const_iv (PROT_EXEC) 872 const_iv (PROT_EXEC)
693 const_iv (PROT_NONE)
694 const_iv (PROT_READ) 873 const_iv (PROT_READ)
695 const_iv (PROT_WRITE) 874 const_iv (PROT_WRITE)
696 875
697 /*const_iv (MAP_FIXED)*/ 876 /*const_iv (MAP_FIXED)*/
698 const_iv (MAP_PRIVATE) 877 const_iv (MAP_PRIVATE)
… …
704 const_iv (MAP_LOCKED) 883 const_iv (MAP_LOCKED)
705 const_iv (MAP_NORESERVE) 884 const_iv (MAP_NORESERVE)
706 const_iv (MAP_POPULATE) 885 const_iv (MAP_POPULATE)
707 const_iv (MAP_NONBLOCK) 886 const_iv (MAP_NONBLOCK)
708 887
709 const_iv (MCL_FUTURE) 888 const_eio (MCL_FUTURE)
710 const_iv (MCL_CURRENT) 889 const_eio (MCL_CURRENT)
711 890
712 const_eio (MS_ASYNC) 891 const_eio (MS_ASYNC)
713 const_eio (MS_INVALIDATE) 892 const_eio (MS_INVALIDATE)
714 const_eio (MS_SYNC) 893 const_eio (MS_SYNC)
715 894
716 const_eio (MT_MODIFY) 895 const_eio (MT_MODIFY)
717 896
718 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 897 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719 const_eio (SYNC_FILE_RANGE_WRITE) 898 const_eio (SYNC_FILE_RANGE_WRITE)
720 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 899 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
900
901 const_eio (FALLOC_FL_KEEP_SIZE)
721 902
722 const_eio (READDIR_DENTS) 903 const_eio (READDIR_DENTS)
723 const_eio (READDIR_DIRS_FIRST) 904 const_eio (READDIR_DIRS_FIRST)
724 const_eio (READDIR_STAT_ORDER) 905 const_eio (READDIR_STAT_ORDER)
725 const_eio (READDIR_FOUND_UNKNOWN) 906 const_eio (READDIR_FOUND_UNKNOWN)
… …
742 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 923 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
743 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 924 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
744 925
745 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 926 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746 927
747 create_respipe (); 928 reinit ();
748
749 if (eio_init (want_poll, done_poll) < 0)
750 croak ("IO::AIO: unable to initialise eio library");
751
752 /* atfork child called in fifo order, so before eio's handler */
753 X_THREAD_ATFORK (0, 0, atfork_child);
754} 929}
755 930
756void 931void
932reinit ()
933 PROTOTYPE:
934
935void
757max_poll_reqs (int nreqs) 936max_poll_reqs (unsigned int nreqs)
758 PROTOTYPE: $ 937 PROTOTYPE: $
759 CODE: 938 CODE:
760 eio_set_max_poll_reqs (nreqs); 939 eio_set_max_poll_reqs (nreqs);
761 940
762void 941void
… …
764 PROTOTYPE: $ 943 PROTOTYPE: $
765 CODE: 944 CODE:
766 eio_set_max_poll_time (nseconds); 945 eio_set_max_poll_time (nseconds);
767 946
768void 947void
769min_parallel (int nthreads) 948min_parallel (unsigned int nthreads)
770 PROTOTYPE: $ 949 PROTOTYPE: $
771 CODE: 950 CODE:
772 eio_set_min_parallel (nthreads); 951 eio_set_min_parallel (nthreads);
773 952
774void 953void
775max_parallel (int nthreads) 954max_parallel (unsigned int nthreads)
776 PROTOTYPE: $ 955 PROTOTYPE: $
777 CODE: 956 CODE:
778 eio_set_max_parallel (nthreads); 957 eio_set_max_parallel (nthreads);
779 958
780void 959void
781max_idle (int nthreads) 960max_idle (unsigned int nthreads)
782 PROTOTYPE: $ 961 PROTOTYPE: $
783 CODE: 962 CODE:
784 eio_set_max_idle (nthreads); 963 eio_set_max_idle (nthreads);
785 964
786void 965void
966idle_timeout (unsigned int seconds)
967 PROTOTYPE: $
968 CODE:
969 eio_set_idle_timeout (seconds);
970
971void
787max_outstanding (int maxreqs) 972max_outstanding (unsigned int maxreqs)
788 PROTOTYPE: $ 973 PROTOTYPE: $
789 CODE: 974 CODE:
790 max_outstanding = maxreqs; 975 max_outstanding = maxreqs;
791 976
792void 977void
793aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 978aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
794 PROTOTYPE: $$$;$
795 PPCODE: 979 PPCODE:
796{ 980{
797 dREQ; 981 dREQ;
798 982
799 req->type = EIO_OPEN; 983 req->type = EIO_OPEN;
… …
805 REQ_SEND; 989 REQ_SEND;
806} 990}
807 991
808void 992void
809aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 993aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810 PROTOTYPE: $;$
811 ALIAS: 994 ALIAS:
812 aio_fsync = EIO_FSYNC 995 aio_fsync = EIO_FSYNC
813 aio_fdatasync = EIO_FDATASYNC 996 aio_fdatasync = EIO_FDATASYNC
997 aio_syncfs = EIO_SYNCFS
814 PPCODE: 998 PPCODE:
815{ 999{
816 int fd = s_fileno_croak (fh, 0); 1000 int fd = s_fileno_croak (fh, 0);
817 dREQ; 1001 dREQ;
818 1002
… …
823 REQ_SEND (req); 1007 REQ_SEND (req);
824} 1008}
825 1009
826void 1010void
827aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1011aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828 PROTOTYPE: $$$$;$
829 PPCODE: 1012 PPCODE:
830{ 1013{
831 int fd = s_fileno_croak (fh, 0); 1014 int fd = s_fileno_croak (fh, 0);
832 dREQ; 1015 dREQ;
833 1016
… …
840 1023
841 REQ_SEND (req); 1024 REQ_SEND (req);
842} 1025}
843 1026
844void 1027void
845aio_close (SV *fh, SV *callback=&PL_sv_undef) 1028aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
846 PROTOTYPE: $;$
847 PPCODE: 1029 PPCODE:
848{ 1030{
849 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850 int fd = s_fileno_croak (fh, 0); 1031 int fd = s_fileno_croak (fh, 0);
851 dREQ; 1032 dREQ;
852 1033
853 if (close_pipe < 0) 1034 req->type = EIO_FALLOCATE;
1035 req->sv1 = newSVsv (fh);
1036 req->int1 = fd;
1037 req->int2 = mode;
1038 req->offs = offset;
1039 req->size = len;
1040
1041 REQ_SEND (req);
1042}
1043
1044void
1045aio_close (SV *fh, SV *callback=&PL_sv_undef)
1046 PPCODE:
1047{
1048 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1049 int fd = s_fileno_croak (fh, 0);
1050 dREQ;
1051
1052 if (expect_false (close_fd < 0))
854 { 1053 {
855 int pipefd [2]; 1054 int pipefd [2];
856 1055
1056 if (
1057#ifdef _WIN32
1058 _pipe (pipefd, 1, _O_BINARY) < 0
1059#else
857 if (pipe (pipefd) < 0 1060 pipe (pipefd) < 0
858 || close (pipefd [1]) < 0
859 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) 1061 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1062#endif
1063 || close (pipefd [1]) < 0
1064 )
860 abort (); /*D*/ 1065 abort (); /*D*/
861 1066
862 close_pipe = pipefd [0]; 1067 close_fd = pipefd [0];
863 } 1068 }
864 1069
865 req->type = EIO_DUP2; 1070 req->type = EIO_DUP2;
866 req->int1 = close_pipe; 1071 req->int1 = close_fd;
867 req->sv2 = newSVsv (fh); 1072 req->sv2 = newSVsv (fh);
868 req->int2 = fd; 1073 req->int2 = fd;
869 1074
870 REQ_SEND (req); 1075 REQ_SEND (req);
871} 1076}
… …
873void 1078void
874aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1079aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875 ALIAS: 1080 ALIAS:
876 aio_read = EIO_READ 1081 aio_read = EIO_READ
877 aio_write = EIO_WRITE 1082 aio_write = EIO_WRITE
878 PROTOTYPE: $$$$$;$
879 PPCODE: 1083 PPCODE:
880{ 1084{
881 STRLEN svlen; 1085 STRLEN svlen;
882 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 1086 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883 char *svptr = SvPVbyte (data, svlen); 1087 char *svptr = SvPVbyte (data, svlen);
… …
924 } 1128 }
925} 1129}
926 1130
927void 1131void
928aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1132aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
929 PROTOTYPE: $$;$ 1133 ALIAS:
1134 aio_readlink = EIO_READLINK
1135 aio_realpath = EIO_REALPATH
930 PPCODE: 1136 PPCODE:
931{ 1137{
932 SV *data;
933 dREQ; 1138 dREQ;
934 1139
935 req->type = EIO_READLINK; 1140 req->type = ix;
936 req->sv1 = newSVsv (path); 1141 req->sv1 = newSVsv (path);
937 req->ptr1 = SvPVbyte_nolen (req->sv1); 1142 req->ptr1 = SvPVbyte_nolen (req->sv1);
938 1143
939 REQ_SEND; 1144 REQ_SEND;
940} 1145}
941 1146
942void 1147void
943aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1148aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944 PROTOTYPE: $$$$;$
945 PPCODE: 1149 PPCODE:
946{ 1150{
947 int ifd = s_fileno_croak (in_fh , 0); 1151 int ifd = s_fileno_croak (in_fh , 0);
948 int ofd = s_fileno_croak (out_fh, 1); 1152 int ofd = s_fileno_croak (out_fh, 1);
949 dREQ; 1153 dREQ;
… …
959 REQ_SEND; 1163 REQ_SEND;
960} 1164}
961 1165
962void 1166void
963aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1167aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964 PROTOTYPE: $$$;$
965 PPCODE: 1168 PPCODE:
966{ 1169{
967 int fd = s_fileno_croak (fh, 0); 1170 int fd = s_fileno_croak (fh, 0);
968 dREQ; 1171 dREQ;
969 1172
… …
1000 } 1203 }
1001 1204
1002 REQ_SEND; 1205 REQ_SEND;
1003} 1206}
1004 1207
1208UV
1209major (UV dev)
1210 ALIAS:
1211 minor = 1
1212 CODE:
1213 RETVAL = ix ? major (dev) : minor (dev);
1214 OUTPUT:
1215 RETVAL
1216
1217UV
1218makedev (UV maj, UV min)
1219 CODE:
1220 RETVAL = makedev (maj, min);
1221 OUTPUT:
1222 RETVAL
1223
1005void 1224void
1006aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1225aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1007 PPCODE: 1226 PPCODE:
1008{ 1227{
1009 dREQ; 1228 dREQ;
… …
1170void 1389void
1171aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1390aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172 ALIAS: 1391 ALIAS:
1173 aio_mtouch = EIO_MTOUCH 1392 aio_mtouch = EIO_MTOUCH
1174 aio_msync = EIO_MSYNC 1393 aio_msync = EIO_MSYNC
1175 PROTOTYPE: $$$$;$
1176 PPCODE: 1394 PPCODE:
1177{ 1395{
1178 STRLEN svlen; 1396 STRLEN svlen;
1397 char *svptr = SvPVbyte (data, svlen);
1179 UV len = SvUV (length); 1398 UV len = SvUV (length);
1180 char *svptr = SvPVbyte (data, svlen);
1181 1399
1182 if (offset < 0) 1400 if (offset < 0)
1183 offset += svlen; 1401 offset += svlen;
1184 1402
1185 if (offset < 0 || offset > svlen) 1403 if (offset < 0 || offset > svlen)
… …
1190 1408
1191 { 1409 {
1192 dREQ; 1410 dREQ;
1193 1411
1194 req->type = ix; 1412 req->type = ix;
1195 req->size = len;
1196 req->sv2 = SvREFCNT_inc (data); 1413 req->sv2 = SvREFCNT_inc (data);
1197 req->ptr2 = (char *)svptr + offset; 1414 req->ptr2 = (char *)svptr + offset;
1415 req->size = len;
1198 req->int1 = flags; 1416 req->int1 = flags;
1199 1417
1200 REQ_SEND; 1418 REQ_SEND;
1201 } 1419 }
1202} 1420}
1203 1421
1204void 1422void
1423aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1424 PPCODE:
1425{
1426 STRLEN svlen;
1427 char *svptr = SvPVbyte (data, svlen);
1428 UV len = SvUV (length);
1429
1430 if (offset < 0)
1431 offset += svlen;
1432
1433 if (offset < 0 || offset > svlen)
1434 croak ("offset outside of scalar");
1435
1436 if (!SvOK (length) || len + offset > svlen)
1437 len = svlen - offset;
1438
1439 {
1440 dREQ;
1441
1442 req->type = EIO_MLOCK;
1443 req->sv2 = SvREFCNT_inc (data);
1444 req->ptr2 = (char *)svptr + offset;
1445 req->size = len;
1446
1447 REQ_SEND;
1448 }
1449}
1450
1451void
1452aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1453 PPCODE:
1454{
1455 dREQ;
1456
1457 req->type = EIO_MLOCKALL;
1458 req->int1 = flags;
1459
1460 REQ_SEND;
1461}
1462
1463void
1205aio_busy (double delay, SV *callback=&PL_sv_undef) 1464aio_busy (double delay, SV *callback=&PL_sv_undef)
1206 PPCODE: 1465 PPCODE:
1207{ 1466{
1208 dREQ; 1467 dREQ;
1209 1468
… …
1213 REQ_SEND; 1472 REQ_SEND;
1214} 1473}
1215 1474
1216void 1475void
1217aio_group (SV *callback=&PL_sv_undef) 1476aio_group (SV *callback=&PL_sv_undef)
1218 PROTOTYPE: ;$
1219 PPCODE: 1477 PPCODE:
1220{ 1478{
1221 dREQ; 1479 dREQ;
1222 1480
1223 req->type = EIO_GROUP; 1481 req->type = EIO_GROUP;
… …
1240 REQ_SEND; 1498 REQ_SEND;
1241} 1499}
1242 1500
1243int 1501int
1244aioreq_pri (int pri = 0) 1502aioreq_pri (int pri = 0)
1245 PROTOTYPE: ;$
1246 CODE: 1503 CODE:
1247 RETVAL = next_pri; 1504 RETVAL = next_pri;
1248 if (items > 0) 1505 if (items > 0)
1249 { 1506 {
1250 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1507 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1262 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1519 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263 next_pri = nice; 1520 next_pri = nice;
1264 1521
1265void 1522void
1266flush () 1523flush ()
1267 PROTOTYPE:
1268 CODE: 1524 CODE:
1269 while (eio_nreqs ()) 1525 while (eio_nreqs ())
1270 { 1526 {
1271 poll_wait (); 1527 poll_wait ();
1272 poll_cb (); 1528 poll_cb ();
1273 } 1529 }
1274 1530
1275int 1531int
1276poll() 1532poll ()
1277 PROTOTYPE:
1278 CODE: 1533 CODE:
1279 poll_wait (); 1534 poll_wait ();
1280 RETVAL = poll_cb (); 1535 RETVAL = poll_cb ();
1281 OUTPUT: 1536 OUTPUT:
1282 RETVAL 1537 RETVAL
1283 1538
1284int 1539int
1285poll_fileno() 1540poll_fileno ()
1286 PROTOTYPE:
1287 CODE: 1541 CODE:
1288 RETVAL = s_epipe_fd (&respipe); 1542 RETVAL = s_epipe_fd (&respipe);
1289 OUTPUT: 1543 OUTPUT:
1290 RETVAL 1544 RETVAL
1291 1545
1292int 1546int
1293poll_cb(...) 1547poll_cb (...)
1294 PROTOTYPE: 1548 PROTOTYPE:
1295 CODE: 1549 CODE:
1296 RETVAL = poll_cb (); 1550 RETVAL = poll_cb ();
1297 OUTPUT: 1551 OUTPUT:
1298 RETVAL 1552 RETVAL
1299 1553
1300void 1554void
1301poll_wait() 1555poll_wait ()
1302 PROTOTYPE:
1303 CODE: 1556 CODE:
1304 poll_wait (); 1557 poll_wait ();
1305 1558
1306int 1559int
1307nreqs() 1560nreqs ()
1308 PROTOTYPE:
1309 CODE: 1561 CODE:
1310 RETVAL = eio_nreqs (); 1562 RETVAL = eio_nreqs ();
1311 OUTPUT: 1563 OUTPUT:
1312 RETVAL 1564 RETVAL
1313 1565
1314int 1566int
1315nready() 1567nready ()
1316 PROTOTYPE:
1317 CODE: 1568 CODE:
1318 RETVAL = eio_nready (); 1569 RETVAL = eio_nready ();
1319 OUTPUT: 1570 OUTPUT:
1320 RETVAL 1571 RETVAL
1321 1572
1322int 1573int
1323npending() 1574npending ()
1324 PROTOTYPE:
1325 CODE: 1575 CODE:
1326 RETVAL = eio_npending (); 1576 RETVAL = eio_npending ();
1327 OUTPUT: 1577 OUTPUT:
1328 RETVAL 1578 RETVAL
1329 1579
1330int 1580int
1331nthreads() 1581nthreads ()
1332 PROTOTYPE:
1333 CODE: 1582 CODE:
1334 RETVAL = eio_nthreads (); 1583 RETVAL = eio_nthreads ();
1335 OUTPUT: 1584 OUTPUT:
1336 RETVAL 1585 RETVAL
1337 1586
1338int 1587int
1339fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1588fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340 PROTOTYPE: $$$$
1341 CODE: 1589 CODE:
1342#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343 RETVAL = posix_fadvise (fh, offset, length, advice); 1590 RETVAL = posix_fadvise (fh, offset, length, advice);
1344#else
1345 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346#endif
1347 OUTPUT: 1591 OUTPUT:
1348 RETVAL 1592 RETVAL
1349 1593
1350ssize_t 1594IV
1351sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1595sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352 PROTOTYPE: $$$$
1353 CODE: 1596 CODE:
1354 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1597 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355 OUTPUT: 1598 OUTPUT:
1356 RETVAL 1599 RETVAL
1357 1600
1358void 1601void
1359mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1602mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360 PROTOTYPE: $$$$$;$
1361 PPCODE: 1603 PPCODE:
1362 sv_unmagic (scalar, MMAP_MAGIC); 1604 sv_unmagic (scalar, MMAP_MAGIC);
1363{ 1605{
1364 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1606 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1607 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366 if (addr == (void *)-1) 1608 if (addr == (void *)-1)
1367 XSRETURN_NO; 1609 XSRETURN_NO;
1368 1610
1611 sv_force_normal (scalar);
1612
1369 /* we store the length in mg_obj, as namlen is I32 :/ */ 1613 /* we store the length in mg_obj, as namlen is I32 :/ */
1370 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1614 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371 ->mg_obj = (SV *)length; 1615 ->mg_obj = (SV *)length;
1372 1616
1373 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1617 SvUPGRADE (scalar, SVt_PV); /* nop... */
1618
1374 if (!(prot & PROT_WRITE)) 1619 if (!(prot & PROT_WRITE))
1375 SvREADONLY_on (scalar); 1620 SvREADONLY_on (scalar);
1621
1622 if (SvLEN (scalar))
1623 Safefree (SvPVX (scalar));
1376 1624
1377 SvPVX (scalar) = (char *)addr; 1625 SvPVX (scalar) = (char *)addr;
1378 SvCUR_set (scalar, length); 1626 SvCUR_set (scalar, length);
1379 SvLEN_set (scalar, 0); 1627 SvLEN_set (scalar, 0);
1380 SvPOK_only (scalar); 1628 SvPOK_only (scalar);
… …
1382 XSRETURN_YES; 1630 XSRETURN_YES;
1383} 1631}
1384 1632
1385void 1633void
1386munmap (SV *scalar) 1634munmap (SV *scalar)
1387 PROTOTYPE: $
1388 CODE: 1635 CODE:
1389 sv_unmagic (scalar, MMAP_MAGIC); 1636 sv_unmagic (scalar, MMAP_MAGIC);
1390 1637
1391int 1638int
1392mlockall (int flags) 1639madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393 PROTOTYPE: $ 1640 ALIAS:
1641 mprotect = 1
1394 CODE: 1642 CODE:
1643{
1644 STRLEN svlen;
1645 void *addr = SvPVbyte (scalar, svlen);
1646 size_t len = SvUV (length);
1647
1648 if (offset < 0)
1649 offset += svlen;
1650
1651 if (offset < 0 || offset > svlen)
1652 croak ("offset outside of scalar");
1653
1654 if (!SvOK (length) || len + offset > svlen)
1655 len = svlen - offset;
1656
1657 addr = (void *)(((intptr_t)addr) + offset);
1658 eio_page_align (&addr, &len);
1659
1660 switch (ix)
1661 {
1662 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1663 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1664 }
1665}
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1671 CODE:
1672{
1673 STRLEN svlen;
1674 void *addr = SvPVbyte (scalar, svlen);
1675 size_t len = SvUV (length);
1676
1677 if (offset < 0)
1678 offset += svlen;
1679
1680 if (offset < 0 || offset > svlen)
1681 croak ("offset outside of scalar");
1682
1683 if (!SvOK (length) || len + offset > svlen)
1684 len = svlen - offset;
1685
1686 addr = (void *)(((intptr_t)addr) + offset);
1687 eio_page_align (&addr, &len);
1395#if _POSIX_MEMLOCK 1688#if _POSIX_MEMLOCK_RANGE
1396#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1689 RETVAL = munlock (addr, len);
1397 extern int mallopt (int, int);
1398 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399#endif
1400 mlockall (flags);
1401#else 1690#else
1402 RETVAL = -1; 1691 RETVAL = ((errno = ENOSYS), -1);
1403 errno = ENOSYS;
1404#endif 1692#endif
1693}
1405 OUTPUT: 1694 OUTPUT:
1406 RETVAL 1695 RETVAL
1407 1696
1408int 1697int
1409munlockall () 1698munlockall ()
1410 PROTOTYPE:
1411 CODE: 1699 CODE:
1412#if _POSIX_MEMLOCK 1700#if _POSIX_MEMLOCK
1413 munlockall (); 1701 munlockall ();
1414#else 1702#else
1415 RETVAL = -1; 1703 RETVAL = -1;

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