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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.161 by root, Sun Jan 10 20:28:43 2010 UTC vs.
Revision 1.188 by root, Sun Jul 17 04:20:04 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 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 #define EIO_STRUCT_DIRENT Direntry_t
36 #undef malloc
37 #undef free
38
39 // perl overrides all those nice libc functions
40 #undef open
41 #undef read
42 #undef write
43 #undef send
44 #undef recv
45 #undef stat
46 #undef lstat
47 #undef fstat
48 #undef truncate
49 #undef ftruncate
50 #undef open
51 #undef link
52 #undef close
53 #undef unlink
54 #undef mkdir
55 #undef rmdir
56 #undef rename
57 #undef lseek
58 #undef opendir
59 #undef readdir
60 #undef closedir
61 #undef chmod
62 #undef fchmod
63 #undef dup
64 #undef dup2
65 #undef abort
66 #undef pipe
67
68#else
69
70 #include <sys/time.h>
71 #include <sys/select.h>
72 #include <unistd.h>
73 #include <utime.h>
74 #include <signal.h>
75
76#endif
82 77
83#define EIO_STRUCT_STAT Stat_t 78#define EIO_STRUCT_STAT Stat_t
84 79
85/* use NV for 32 bit perls as it allows larger offsets */ 80/* use NV for 32 bit perls as it allows larger offsets */
86#if IVSIZE >= 8 81#if IVSIZE >= 8
… …
118 STRLEN stroffset; \ 113 STRLEN stroffset; \
119 SV *self; 114 SV *self;
120 115
121#define EIO_NO_WRAPPERS 1 116#define EIO_NO_WRAPPERS 1
122 117
118#include "libeio/config.h"
123#include "libeio/eio.h" 119#include "libeio/eio.h"
124
125#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif
129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0
131#endif
132#ifndef POSIX_FADV_RANDOM
133# define POSIX_FADV_RANDOM 0
134#endif
135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0
137#endif
138#ifndef POSIX_FADV_WILLNEED
139# define POSIX_FADV_WILLNEED 0
140#endif
141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#ifndef ST_NODEV
146# define ST_NODEV 0
147#endif
148#ifndef ST_NOEXEC
149# define ST_NOEXEC 0
150#endif
151#ifndef ST_SYNCHRONOUS
152# define ST_SYNCHRONOUS 0
153#endif
154#ifndef ST_MANDLOCK
155# define ST_MANDLOCK 0
156#endif
157#ifndef ST_WRITE
158# define ST_WRITE 0
159#endif
160#ifndef ST_APPEND
161# define ST_APPEND 0
162#endif
163#ifndef ST_IMMUTABLE
164# define ST_IMMUTABLE 0
165#endif
166#ifndef ST_NOATIME
167# define ST_NOATIME 0
168#endif
169#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0
171#endif
172#ifndef ST_RELATIME
173# define ST_RELATIME 0
174#endif
175
176#ifndef MCL_CURRENT
177# define MCL_CURRENT 0
178#endif
179#ifndef MCL_FUTURE
180# define MCL_FUTURE 0
181#endif
182 120
183static int req_invoke (eio_req *req); 121static int req_invoke (eio_req *req);
184#define EIO_FINISH(req) req_invoke (req) 122#define EIO_FINISH(req) req_invoke (req)
185static void req_destroy (eio_req *grp); 123static void req_destroy (eio_req *grp);
186#define EIO_DESTROY(req) req_destroy (req) 124#define EIO_DESTROY(req) req_destroy (req)
187 125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314
315#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif
328
188enum { 329enum {
189 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
190}; 331};
191
192#include "libeio/eio.c"
193 332
194typedef eio_req *aio_req; 333typedef eio_req *aio_req;
195typedef eio_req *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
196 335
197static SV *on_next_submit; 336static SV *on_next_submit;
… …
277 } 416 }
278} 417}
279 418
280static int req_invoke (eio_req *req) 419static int req_invoke (eio_req *req)
281{ 420{
282 dSP;
283
284 if (req->flags & FLAG_SV2_RO_OFF) 421 if (req->flags & FLAG_SV2_RO_OFF)
285 SvREADONLY_off (req->sv2); 422 SvREADONLY_off (req->sv2);
286 423
287 if (!EIO_CANCELLED (req) && req->callback) 424 if (!EIO_CANCELLED (req) && req->callback)
288 { 425 {
426 dSP;
427 static SV *sv_result_cache; /* caches the result integer SV */
428 SV *sv_result;
429
289 ENTER; 430 ENTER;
290 SAVETMPS; 431 SAVETMPS;
291 PUSHMARK (SP); 432 PUSHMARK (SP);
292 EXTEND (SP, 1); 433 EXTEND (SP, 1);
434
435 /* do not recreate the result IV from scratch each time */
436 if (expect_true (sv_result_cache))
437 {
438 sv_result = sv_result_cache; sv_result_cache = 0;
439 SvIV_set (sv_result, req->result);
440 SvIOK_only (sv_result);
441 }
442 else
443 {
444 sv_result = newSViv (req->result);
445 SvREADONLY_on (sv_result);
446 }
293 447
294 switch (req->type) 448 switch (req->type)
295 { 449 {
296 case EIO_READDIR: 450 case EIO_READDIR:
297 { 451 {
… …
388 case EIO_STATVFS: 542 case EIO_STATVFS:
389 case EIO_FSTATVFS: 543 case EIO_FSTATVFS:
390 { 544 {
391 SV *rv = &PL_sv_undef; 545 SV *rv = &PL_sv_undef;
392 546
547#ifndef _WIN32
393 if (req->result >= 0) 548 if (req->result >= 0)
394 { 549 {
395 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); 550 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
396 HV *hv = newHV (); 551 HV *hv = newHV ();
397 552
… …
407 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); 562 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
408 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0); 563 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
409 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); 564 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
410 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); 565 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
411 } 566 }
567#endif
412 568
413 PUSHs (rv); 569 PUSHs (rv);
414 } 570 }
415 571
416 break; 572 break;
… …
432 case EIO_NOP: 588 case EIO_NOP:
433 case EIO_BUSY: 589 case EIO_BUSY:
434 break; 590 break;
435 591
436 case EIO_READLINK: 592 case EIO_READLINK:
593 case EIO_REALPATH:
437 if (req->result > 0) 594 if (req->result > 0)
438 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); 595 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
439 break; 596 break;
440 597
441 case EIO_STAT: 598 case EIO_STAT:
442 case EIO_LSTAT: 599 case EIO_LSTAT:
443 case EIO_FSTAT: 600 case EIO_FSTAT:
444 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 601 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
445 PL_laststatval = req->result; 602 PL_laststatval = req->result;
603 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
446 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 604 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
447 PUSHs (sv_2mortal (newSViv (req->result))); 605 PUSHs (sv_result);
448 break; 606 break;
449 607
450 case EIO_READ: 608 case EIO_READ:
451 { 609 {
452 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 610 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
453 *SvEND (req->sv2) = 0; 611 *SvEND (req->sv2) = 0;
454 SvPOK_only (req->sv2); 612 SvPOK_only (req->sv2);
455 SvSETMAGIC (req->sv2); 613 SvSETMAGIC (req->sv2);
456 PUSHs (sv_2mortal (newSViv (req->result))); 614 PUSHs (sv_result);
457 } 615 }
458 break; 616 break;
459 617
460 case EIO_DUP2: 618 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
461 if (req->result > 0) 619 if (req->result > 0)
462 req->result = 0; 620 SvIV_set (sv_result, 0);
463 /* FALLTHROUGH */ 621 /* FALLTHROUGH */
464 622
465 default: 623 default:
466 PUSHs (sv_2mortal (newSViv (req->result))); 624 PUSHs (sv_result);
467 break; 625 break;
468 } 626 }
469 627
470 errno = req->errorno; 628 errno = req->errorno;
471 629
472 PUTBACK; 630 PUTBACK;
473 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 631 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
474 SPAGAIN; 632 SPAGAIN;
633
634 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
635 SvREFCNT_dec (sv_result);
636 else
637 sv_result_cache = sv_result;
475 638
476 FREETMPS; 639 FREETMPS;
477 LEAVE; 640 LEAVE;
478 641
479 PUTBACK; 642 PUTBACK;
… …
497 Safefree (req); 660 Safefree (req);
498} 661}
499 662
500static void req_cancel_subs (aio_req grp) 663static void req_cancel_subs (aio_req grp)
501{ 664{
502 aio_req sub;
503
504 if (grp->type != EIO_GROUP) 665 if (grp->type != EIO_GROUP)
505 return; 666 return;
506 667
507 SvREFCNT_dec (grp->sv2); 668 SvREFCNT_dec (grp->sv2);
508 grp->sv2 = 0; 669 grp->sv2 = 0;
509 670
510 eio_grp_cancel (grp); 671 eio_grp_cancel (grp);
511} 672}
512 673
513static void
514create_respipe (void) 674static void create_respipe (void)
515{ 675{
516 if (s_epipe_renew (&respipe)) 676 if (s_epipe_renew (&respipe))
517 croak ("IO::AIO: unable to initialize result pipe"); 677 croak ("IO::AIO: unable to initialize result pipe");
518} 678}
519 679
… …
555static void atfork_child (void) 715static void atfork_child (void)
556{ 716{
557 create_respipe (); 717 create_respipe ();
558} 718}
559 719
560static SV * 720/*****************************************************************************/
721
722#if !_POSIX_MAPPED_FILES
723# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
724# define munmap(addr,length) (errno = ENOSYS, -1)
725#endif
726
727#if !_POSIX_MEMORY_PROTECTION
728# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
729# define PROT_NONE 0
730# define PROT_WRITE 0
731# define MAP_PRIVATE 0
732# define MAP_SHARED 0
733# define MAP_FIXED 0
734#endif
735
736#define MMAP_MAGIC PERL_MAGIC_ext
737
738static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
739{
740 int old_errno = errno;
741 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
742 errno = old_errno;
743
744 mg->mg_obj = 0; /* just in case */
745
746 SvREADONLY_off (sv);
747
748 if (SvPVX (sv) != mg->mg_ptr)
749 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
750
751 SvCUR_set (sv, 0);
752 SvPVX (sv) = 0;
753 SvOK_off (sv);
754
755 return 0;
756}
757
758static MGVTBL mmap_vtbl = {
759 0, 0, 0, 0, mmap_free
760};
761
762/*****************************************************************************/
763
561get_cb (SV *cb_sv) 764static SV * get_cb (SV *cb_sv)
562{ 765{
563 SvGETMAGIC (cb_sv); 766 SvGETMAGIC (cb_sv);
564 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 767 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
565} 768}
566 769
… …
595{ 798{
596 static const struct { 799 static const struct {
597 const char *name; 800 const char *name;
598 IV iv; 801 IV iv;
599 } *civ, const_iv[] = { 802 } *civ, const_iv[] = {
600# define const_iv(name, value) { # name, (IV) value }, 803# define const_niv(name, value) { # name, (IV) value },
804# define const_iv(name) { # name, (IV) name },
601# define const_eio(name) { # name, (IV) EIO_ ## name }, 805# define const_eio(name) { # name, (IV) EIO_ ## name },
602 const_iv (EXDEV , EXDEV) 806 const_iv (EXDEV)
603 const_iv (ENOSYS , ENOSYS) 807 const_iv (ENOSYS)
604 const_iv (O_RDONLY, O_RDONLY) 808 const_iv (O_RDONLY)
605 const_iv (O_WRONLY, O_WRONLY) 809 const_iv (O_WRONLY)
810 const_iv (O_RDWR)
606 const_iv (O_CREAT , O_CREAT) 811 const_iv (O_CREAT)
607 const_iv (O_TRUNC , O_TRUNC) 812 const_iv (O_TRUNC)
608#ifndef _WIN32 813 const_iv (O_EXCL)
814 const_iv (O_APPEND)
815
816 const_iv (O_ASYNC)
817 const_iv (O_DIRECT)
818 const_iv (O_NOATIME)
819
820 const_iv (O_CLOEXEC)
821 const_iv (O_NOCTTY)
822 const_iv (O_NOFOLLOW)
823 const_iv (O_NONBLOCK)
824 const_iv (O_EXEC)
825 const_iv (O_SEARCH)
826 const_iv (O_DIRECTORY)
827 const_iv (O_DSYNC)
828 const_iv (O_RSYNC)
829 const_iv (O_SYNC)
830 const_iv (O_TTY_INIT)
831
609 const_iv (S_IFIFO , S_IFIFO) 832 const_iv (S_IFIFO)
610#endif 833 const_iv (S_IFCHR)
834 const_iv (S_IFBLK)
835 const_iv (S_IFLNK)
836 const_iv (S_IFREG)
837 const_iv (S_IFDIR)
838 const_iv (S_IFWHT)
839 const_iv (S_IFSOCK)
840 const_iv (S_IFMT)
841
611 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 842 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
612 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 843 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
613 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 844 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
614 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 845 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
615 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 846 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
616 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 847 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
617 848
618 const_iv (ST_RDONLY , ST_RDONLY) 849 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
619 const_iv (ST_NOSUID , ST_NOSUID) 850 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
620 const_iv (ST_NODEV , ST_NODEV) 851 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
621 const_iv (ST_NOEXEC , ST_NOEXEC) 852 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
853 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
854
855 const_iv (ST_RDONLY)
856 const_iv (ST_NOSUID)
857 const_iv (ST_NODEV)
858 const_iv (ST_NOEXEC)
622 const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS) 859 const_iv (ST_SYNCHRONOUS)
623 const_iv (ST_MANDLOCK , ST_MANDLOCK) 860 const_iv (ST_MANDLOCK)
624 const_iv (ST_WRITE , ST_WRITE) 861 const_iv (ST_WRITE)
625 const_iv (ST_APPEND , ST_APPEND) 862 const_iv (ST_APPEND)
626 const_iv (ST_IMMUTABLE , ST_IMMUTABLE) 863 const_iv (ST_IMMUTABLE)
627 const_iv (ST_NOATIME , ST_NOATIME) 864 const_iv (ST_NOATIME)
628 const_iv (ST_NODIRATIME , ST_NODIRATIME) 865 const_iv (ST_NODIRATIME)
629 const_iv (ST_RELATIME , ST_RELATIME) 866 const_iv (ST_RELATIME)
630 867
631 const_iv (MCL_FUTURE , MCL_FUTURE) 868 const_iv (PROT_NONE)
632 const_iv (MCL_CURRENT , MCL_CURRENT) 869 const_iv (PROT_EXEC)
870 const_iv (PROT_READ)
871 const_iv (PROT_WRITE)
872
873 /*const_iv (MAP_FIXED)*/
874 const_iv (MAP_PRIVATE)
875 const_iv (MAP_SHARED)
876 const_iv (MAP_ANONYMOUS)
877
878 /* linuxish */
879 const_iv (MAP_HUGETLB)
880 const_iv (MAP_LOCKED)
881 const_iv (MAP_NORESERVE)
882 const_iv (MAP_POPULATE)
883 const_iv (MAP_NONBLOCK)
884
885 const_eio (MCL_FUTURE)
886 const_eio (MCL_CURRENT)
633 887
634 const_eio (MS_ASYNC) 888 const_eio (MS_ASYNC)
635 const_eio (MS_INVALIDATE) 889 const_eio (MS_INVALIDATE)
636 const_eio (MS_SYNC) 890 const_eio (MS_SYNC)
637 891
638 const_eio (MT_MODIFY) 892 const_eio (MT_MODIFY)
639 893
640 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 894 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
641 const_eio (SYNC_FILE_RANGE_WRITE) 895 const_eio (SYNC_FILE_RANGE_WRITE)
642 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 896 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
897
898 const_eio (FALLOC_FL_KEEP_SIZE)
643 899
644 const_eio (READDIR_DENTS) 900 const_eio (READDIR_DENTS)
645 const_eio (READDIR_DIRS_FIRST) 901 const_eio (READDIR_DIRS_FIRST)
646 const_eio (READDIR_STAT_ORDER) 902 const_eio (READDIR_STAT_ORDER)
647 const_eio (READDIR_FOUND_UNKNOWN) 903 const_eio (READDIR_FOUND_UNKNOWN)
… …
662 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 918 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
663 919
664 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 920 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
665 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 921 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
666 922
923 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
924
667 create_respipe (); 925 create_respipe ();
668 926
669 if (eio_init (want_poll, done_poll) < 0) 927 if (eio_init (want_poll, done_poll) < 0)
670 croak ("IO::AIO: unable to initialise eio library"); 928 croak ("IO::AIO: unable to initialise eio library");
671 929
672 /* atfork child called in fifo order, so before eio's handler */ 930 /* atfork child called in fifo order, so before eio's handler */
673 X_THREAD_ATFORK (0, 0, atfork_child); 931 X_THREAD_ATFORK (0, 0, atfork_child);
674} 932}
675 933
676void 934void
677max_poll_reqs (int nreqs) 935max_poll_reqs (unsigned int nreqs)
678 PROTOTYPE: $ 936 PROTOTYPE: $
679 CODE: 937 CODE:
680 eio_set_max_poll_reqs (nreqs); 938 eio_set_max_poll_reqs (nreqs);
681 939
682void 940void
… …
684 PROTOTYPE: $ 942 PROTOTYPE: $
685 CODE: 943 CODE:
686 eio_set_max_poll_time (nseconds); 944 eio_set_max_poll_time (nseconds);
687 945
688void 946void
689min_parallel (int nthreads) 947min_parallel (unsigned int nthreads)
690 PROTOTYPE: $ 948 PROTOTYPE: $
691 CODE: 949 CODE:
692 eio_set_min_parallel (nthreads); 950 eio_set_min_parallel (nthreads);
693 951
694void 952void
695max_parallel (int nthreads) 953max_parallel (unsigned int nthreads)
696 PROTOTYPE: $ 954 PROTOTYPE: $
697 CODE: 955 CODE:
698 eio_set_max_parallel (nthreads); 956 eio_set_max_parallel (nthreads);
699 957
700void 958void
701max_idle (int nthreads) 959max_idle (unsigned int nthreads)
702 PROTOTYPE: $ 960 PROTOTYPE: $
703 CODE: 961 CODE:
704 eio_set_max_idle (nthreads); 962 eio_set_max_idle (nthreads);
705 963
706void 964void
965idle_timeout (unsigned int seconds)
966 PROTOTYPE: $
967 CODE:
968 eio_set_idle_timeout (seconds);
969
970void
707max_outstanding (int maxreqs) 971max_outstanding (unsigned int maxreqs)
708 PROTOTYPE: $ 972 PROTOTYPE: $
709 CODE: 973 CODE:
710 max_outstanding = maxreqs; 974 max_outstanding = maxreqs;
711 975
712void 976void
713aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 977aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
714 PROTOTYPE: $$$;$
715 PPCODE: 978 PPCODE:
716{ 979{
717 dREQ; 980 dREQ;
718 981
719 req->type = EIO_OPEN; 982 req->type = EIO_OPEN;
… …
725 REQ_SEND; 988 REQ_SEND;
726} 989}
727 990
728void 991void
729aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 992aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
730 PROTOTYPE: $;$
731 ALIAS: 993 ALIAS:
732 aio_fsync = EIO_FSYNC 994 aio_fsync = EIO_FSYNC
733 aio_fdatasync = EIO_FDATASYNC 995 aio_fdatasync = EIO_FDATASYNC
734 PPCODE: 996 PPCODE:
735{ 997{
… …
743 REQ_SEND (req); 1005 REQ_SEND (req);
744} 1006}
745 1007
746void 1008void
747aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1009aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
748 PROTOTYPE: $$$$;$
749 PPCODE: 1010 PPCODE:
750{ 1011{
751 int fd = s_fileno_croak (fh, 0); 1012 int fd = s_fileno_croak (fh, 0);
752 dREQ; 1013 dREQ;
753 1014
… …
760 1021
761 REQ_SEND (req); 1022 REQ_SEND (req);
762} 1023}
763 1024
764void 1025void
765aio_close (SV *fh, SV *callback=&PL_sv_undef) 1026aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
766 PROTOTYPE: $;$
767 PPCODE: 1027 PPCODE:
768{ 1028{
769 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
770 int fd = s_fileno_croak (fh, 0); 1029 int fd = s_fileno_croak (fh, 0);
771 dREQ; 1030 dREQ;
772 1031
773 if (close_pipe < 0) 1032 req->type = EIO_FALLOCATE;
1033 req->sv1 = newSVsv (fh);
1034 req->int1 = fd;
1035 req->int2 = mode;
1036 req->offs = offset;
1037 req->size = len;
1038
1039 REQ_SEND (req);
1040}
1041
1042void
1043aio_close (SV *fh, SV *callback=&PL_sv_undef)
1044 PPCODE:
1045{
1046 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1047 int fd = s_fileno_croak (fh, 0);
1048 dREQ;
1049
1050 if (expect_false (close_fd < 0))
774 { 1051 {
775 int pipefd [2]; 1052 int pipefd [2];
776 1053
1054 if (
1055#ifdef _WIN32
1056 _pipe (pipefd, 1, _O_BINARY) < 0
1057#else
777 if (pipe (pipefd) < 0 1058 pipe (pipefd) < 0
778 || close (pipefd [1]) < 0
779 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) 1059 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1060#endif
1061 || close (pipefd [1]) < 0
1062 )
780 abort (); /*D*/ 1063 abort (); /*D*/
781 1064
782 close_pipe = pipefd [0]; 1065 close_fd = pipefd [0];
783 } 1066 }
784 1067
785 req->type = EIO_DUP2; 1068 req->type = EIO_DUP2;
786 req->int1 = close_pipe; 1069 req->int1 = close_fd;
787 req->sv2 = newSVsv (fh); 1070 req->sv2 = newSVsv (fh);
788 req->int2 = fd; 1071 req->int2 = fd;
789 1072
790 REQ_SEND (req); 1073 REQ_SEND (req);
791} 1074}
… …
793void 1076void
794aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1077aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
795 ALIAS: 1078 ALIAS:
796 aio_read = EIO_READ 1079 aio_read = EIO_READ
797 aio_write = EIO_WRITE 1080 aio_write = EIO_WRITE
798 PROTOTYPE: $$$$$;$
799 PPCODE: 1081 PPCODE:
800{ 1082{
801 STRLEN svlen; 1083 STRLEN svlen;
802 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 1084 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
803 char *svptr = SvPVbyte (data, svlen); 1085 char *svptr = SvPVbyte (data, svlen);
… …
844 } 1126 }
845} 1127}
846 1128
847void 1129void
848aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1130aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
849 PROTOTYPE: $$;$ 1131 ALIAS:
1132 aio_readlink = EIO_READLINK
1133 aio_realpath = EIO_REALPATH
850 PPCODE: 1134 PPCODE:
851{ 1135{
852 SV *data;
853 dREQ; 1136 dREQ;
854 1137
855 req->type = EIO_READLINK; 1138 req->type = ix;
856 req->sv1 = newSVsv (path); 1139 req->sv1 = newSVsv (path);
857 req->ptr1 = SvPVbyte_nolen (req->sv1); 1140 req->ptr1 = SvPVbyte_nolen (req->sv1);
858 1141
859 REQ_SEND; 1142 REQ_SEND;
860} 1143}
861 1144
862void 1145void
863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1146aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
864 PROTOTYPE: $$$$;$
865 PPCODE: 1147 PPCODE:
866{ 1148{
867 int ifd = s_fileno_croak (in_fh , 0); 1149 int ifd = s_fileno_croak (in_fh , 0);
868 int ofd = s_fileno_croak (out_fh, 1); 1150 int ofd = s_fileno_croak (out_fh, 1);
869 dREQ; 1151 dREQ;
… …
879 REQ_SEND; 1161 REQ_SEND;
880} 1162}
881 1163
882void 1164void
883aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1165aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
884 PROTOTYPE: $$$;$
885 PPCODE: 1166 PPCODE:
886{ 1167{
887 int fd = s_fileno_croak (fh, 0); 1168 int fd = s_fileno_croak (fh, 0);
888 dREQ; 1169 dREQ;
889 1170
… …
920 } 1201 }
921 1202
922 REQ_SEND; 1203 REQ_SEND;
923} 1204}
924 1205
1206UV
1207major (UV dev)
1208 ALIAS:
1209 minor = 1
1210 CODE:
1211 RETVAL = ix ? major (dev) : minor (dev);
1212 OUTPUT:
1213 RETVAL
1214
1215UV
1216makedev (UV maj, UV min)
1217 CODE:
1218 RETVAL = makedev (maj, min);
1219 OUTPUT:
1220 RETVAL
1221
925void 1222void
926aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1223aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
927 PPCODE: 1224 PPCODE:
928{ 1225{
929 dREQ; 1226 dREQ;
… …
1090void 1387void
1091aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1388aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1092 ALIAS: 1389 ALIAS:
1093 aio_mtouch = EIO_MTOUCH 1390 aio_mtouch = EIO_MTOUCH
1094 aio_msync = EIO_MSYNC 1391 aio_msync = EIO_MSYNC
1095 PROTOTYPE: $$$$;$
1096 PPCODE: 1392 PPCODE:
1097{ 1393{
1098 STRLEN svlen; 1394 STRLEN svlen;
1395 char *svptr = SvPVbyte (data, svlen);
1099 UV len = SvUV (length); 1396 UV len = SvUV (length);
1100 char *svptr = SvPVbyte (data, svlen);
1101 1397
1102 if (offset < 0) 1398 if (offset < 0)
1103 offset += svlen; 1399 offset += svlen;
1104 1400
1105 if (offset < 0 || offset > svlen) 1401 if (offset < 0 || offset > svlen)
… …
1110 1406
1111 { 1407 {
1112 dREQ; 1408 dREQ;
1113 1409
1114 req->type = ix; 1410 req->type = ix;
1115 req->size = len;
1116 req->sv2 = SvREFCNT_inc (data); 1411 req->sv2 = SvREFCNT_inc (data);
1117 req->ptr2 = (char *)svptr + offset; 1412 req->ptr2 = (char *)svptr + offset;
1413 req->size = len;
1118 req->int1 = flags; 1414 req->int1 = flags;
1119 1415
1120 REQ_SEND; 1416 REQ_SEND;
1121 } 1417 }
1122} 1418}
1123 1419
1124void 1420void
1421aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1422 PPCODE:
1423{
1424 STRLEN svlen;
1425 char *svptr = SvPVbyte (data, svlen);
1426 UV len = SvUV (length);
1427
1428 if (offset < 0)
1429 offset += svlen;
1430
1431 if (offset < 0 || offset > svlen)
1432 croak ("offset outside of scalar");
1433
1434 if (!SvOK (length) || len + offset > svlen)
1435 len = svlen - offset;
1436
1437 {
1438 dREQ;
1439
1440 req->type = EIO_MLOCK;
1441 req->sv2 = SvREFCNT_inc (data);
1442 req->ptr2 = (char *)svptr + offset;
1443 req->size = len;
1444
1445 REQ_SEND;
1446 }
1447}
1448
1449void
1450aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1451 PPCODE:
1452{
1453 dREQ;
1454
1455 req->type = EIO_MLOCKALL;
1456 req->int1 = flags;
1457
1458 REQ_SEND;
1459}
1460
1461void
1125aio_busy (double delay, SV *callback=&PL_sv_undef) 1462aio_busy (double delay, SV *callback=&PL_sv_undef)
1126 PPCODE: 1463 PPCODE:
1127{ 1464{
1128 dREQ; 1465 dREQ;
1129 1466
… …
1133 REQ_SEND; 1470 REQ_SEND;
1134} 1471}
1135 1472
1136void 1473void
1137aio_group (SV *callback=&PL_sv_undef) 1474aio_group (SV *callback=&PL_sv_undef)
1138 PROTOTYPE: ;$
1139 PPCODE: 1475 PPCODE:
1140{ 1476{
1141 dREQ; 1477 dREQ;
1142 1478
1143 req->type = EIO_GROUP; 1479 req->type = EIO_GROUP;
… …
1160 REQ_SEND; 1496 REQ_SEND;
1161} 1497}
1162 1498
1163int 1499int
1164aioreq_pri (int pri = 0) 1500aioreq_pri (int pri = 0)
1165 PROTOTYPE: ;$
1166 CODE: 1501 CODE:
1167 RETVAL = next_pri; 1502 RETVAL = next_pri;
1168 if (items > 0) 1503 if (items > 0)
1169 { 1504 {
1170 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1505 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1182 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1517 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1183 next_pri = nice; 1518 next_pri = nice;
1184 1519
1185void 1520void
1186flush () 1521flush ()
1187 PROTOTYPE:
1188 CODE: 1522 CODE:
1189 while (eio_nreqs ()) 1523 while (eio_nreqs ())
1190 { 1524 {
1191 poll_wait (); 1525 poll_wait ();
1192 poll_cb (); 1526 poll_cb ();
1193 } 1527 }
1194 1528
1195int 1529int
1196poll() 1530poll ()
1197 PROTOTYPE:
1198 CODE: 1531 CODE:
1199 poll_wait (); 1532 poll_wait ();
1200 RETVAL = poll_cb (); 1533 RETVAL = poll_cb ();
1201 OUTPUT: 1534 OUTPUT:
1202 RETVAL 1535 RETVAL
1203 1536
1204int 1537int
1205poll_fileno() 1538poll_fileno ()
1206 PROTOTYPE:
1207 CODE: 1539 CODE:
1208 RETVAL = s_epipe_fd (&respipe); 1540 RETVAL = s_epipe_fd (&respipe);
1209 OUTPUT: 1541 OUTPUT:
1210 RETVAL 1542 RETVAL
1211 1543
1212int 1544int
1213poll_cb(...) 1545poll_cb (...)
1214 PROTOTYPE: 1546 PROTOTYPE:
1215 CODE: 1547 CODE:
1216 RETVAL = poll_cb (); 1548 RETVAL = poll_cb ();
1217 OUTPUT: 1549 OUTPUT:
1218 RETVAL 1550 RETVAL
1219 1551
1220void 1552void
1221poll_wait() 1553poll_wait ()
1222 PROTOTYPE:
1223 CODE: 1554 CODE:
1224 poll_wait (); 1555 poll_wait ();
1225 1556
1226int 1557int
1227nreqs() 1558nreqs ()
1228 PROTOTYPE:
1229 CODE: 1559 CODE:
1230 RETVAL = eio_nreqs (); 1560 RETVAL = eio_nreqs ();
1231 OUTPUT: 1561 OUTPUT:
1232 RETVAL 1562 RETVAL
1233 1563
1234int 1564int
1235nready() 1565nready ()
1236 PROTOTYPE:
1237 CODE: 1566 CODE:
1238 RETVAL = eio_nready (); 1567 RETVAL = eio_nready ();
1239 OUTPUT: 1568 OUTPUT:
1240 RETVAL 1569 RETVAL
1241 1570
1242int 1571int
1243npending() 1572npending ()
1244 PROTOTYPE:
1245 CODE: 1573 CODE:
1246 RETVAL = eio_npending (); 1574 RETVAL = eio_npending ();
1247 OUTPUT: 1575 OUTPUT:
1248 RETVAL 1576 RETVAL
1249 1577
1250int 1578int
1251nthreads() 1579nthreads ()
1252 PROTOTYPE:
1253 CODE: 1580 CODE:
1254 RETVAL = eio_nthreads (); 1581 RETVAL = eio_nthreads ();
1255 OUTPUT: 1582 OUTPUT:
1256 RETVAL 1583 RETVAL
1257 1584
1258int 1585int
1259fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1586fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1260 PROTOTYPE: $$$$
1261 CODE: 1587 CODE:
1262#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263 RETVAL = posix_fadvise (fh, offset, length, advice); 1588 RETVAL = posix_fadvise (fh, offset, length, advice);
1264#else
1265 RETVAL = errno = ENOSYS;
1266#endif
1267 OUTPUT: 1589 OUTPUT:
1268 RETVAL 1590 RETVAL
1269 1591
1270ssize_t 1592ssize_t
1271sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1593sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1272 PROTOTYPE: $$$$
1273 CODE: 1594 CODE:
1274 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1595 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275 OUTPUT: 1596 OUTPUT:
1276 RETVAL 1597 RETVAL
1277 1598
1599void
1600mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1601 PPCODE:
1602 sv_unmagic (scalar, MMAP_MAGIC);
1603{
1604 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1605 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1606 if (addr == (void *)-1)
1607 XSRETURN_NO;
1608
1609 sv_force_normal (scalar);
1610
1611 /* we store the length in mg_obj, as namlen is I32 :/ */
1612 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1613 ->mg_obj = (SV *)length;
1614
1615 SvUPGRADE (scalar, SVt_PV); /* nop... */
1616
1617 if (!(prot & PROT_WRITE))
1618 SvREADONLY_on (scalar);
1619
1620 if (SvLEN (scalar))
1621 Safefree (SvPVX (scalar));
1622
1623 SvPVX (scalar) = (char *)addr;
1624 SvCUR_set (scalar, length);
1625 SvLEN_set (scalar, 0);
1626 SvPOK_only (scalar);
1627
1628 XSRETURN_YES;
1629}
1630
1631void
1632munmap (SV *scalar)
1633 CODE:
1634 sv_unmagic (scalar, MMAP_MAGIC);
1635
1278int 1636int
1279mlockall (int flags) 1637madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1280 PROTOTYPE: $ 1638 ALIAS:
1639 mprotect = 1
1281 CODE: 1640 CODE:
1641{
1642 STRLEN svlen;
1643 void *addr = SvPVbyte (scalar, svlen);
1644 size_t len = SvUV (length);
1645
1646 if (offset < 0)
1647 offset += svlen;
1648
1649 if (offset < 0 || offset > svlen)
1650 croak ("offset outside of scalar");
1651
1652 if (!SvOK (length) || len + offset > svlen)
1653 len = svlen - offset;
1654
1655 addr = (void *)(((intptr_t)addr) + offset);
1656 eio_page_align (&addr, &len);
1657
1658 switch (ix)
1659 {
1660 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1661 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1662 }
1663}
1664 OUTPUT:
1665 RETVAL
1666
1667int
1668munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1669 CODE:
1670{
1671 STRLEN svlen;
1672 void *addr = SvPVbyte (scalar, svlen);
1673 size_t len = SvUV (length);
1674
1675 if (offset < 0)
1676 offset += svlen;
1677
1678 if (offset < 0 || offset > svlen)
1679 croak ("offset outside of scalar");
1680
1681 if (!SvOK (length) || len + offset > svlen)
1682 len = svlen - offset;
1683
1684 addr = (void *)(((intptr_t)addr) + offset);
1685 eio_page_align (&addr, &len);
1282#if _POSIX_MEMLOCK 1686#if _POSIX_MEMLOCK_RANGE
1283#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1687 RETVAL = munlock (addr, len);
1284 extern int mallopt (int, int);
1285 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1286#endif
1287 mlockall (flags);
1288#else 1688#else
1289 RETVAL ＝-1; 1689 RETVAL = ((errno = ENOSYS), -1);
1290 errno = ENOSYS;
1291#endif 1690#endif
1691}
1292 OUTPUT: 1692 OUTPUT:
1293 RETVAL 1693 RETVAL
1294 1694
1295int 1695int
1296munlockall () 1696munlockall ()
1297 PROTOTYPE:
1298 CODE: 1697 CODE:
1299#if _POSIX_MEMLOCK 1698#if _POSIX_MEMLOCK
1300 munlockall (); 1699 munlockall ();
1301#else 1700#else
1302 RETVAL ＝-1; 1701 RETVAL = -1;
1303 errno = ENOSYS; 1702 errno = ENOSYS;
1304#endif 1703#endif
1305 OUTPUT: 1704 OUTPUT:
1306 RETVAL 1705 RETVAL
1307 1706

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