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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.157 by root, Sat Jan 2 12:58:37 2010 UTC vs.
Revision 1.193 by root, Mon Jul 25 16:51:07 2011 UTC

15#include <sys/stat.h> 15#include <sys/stat.h>
16#include <limits.h> 16#include <limits.h>
17#include <fcntl.h> 17#include <fcntl.h>
18#include <sched.h> 18#include <sched.h>
19 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
20/* perl namespace pollution */ 24/* perl namespace pollution */
21#undef VERSION 25#undef VERSION
22
23#ifdef _WIN32
24
25# define EIO_STRUCT_DIRENT Direntry_t
26# undef malloc
27# undef free
28
29// perl overrides all those nice win32 functions
30# undef open
31# undef read
32# undef write
33# undef send
34# undef recv
35# undef stat
36# undef fstat
37# define lstat stat
38# undef truncate
39# undef ftruncate
40# undef open
41# undef close
42# undef unlink
43# undef rmdir
44# undef rename
45# undef lseek
46
47# define chown(a,b,c) (errno = ENOSYS, -1)
48# define fchown(a,b,c) (errno = ENOSYS, -1)
49# define fchmod(a,b) (errno = ENOSYS, -1)
50# define symlink(a,b) (errno = ENOSYS, -1)
51# define readlink(a,b,c) (errno = ENOSYS, -1)
52# define mknod(a,b,c) (errno = ENOSYS, -1)
53# define truncate(a,b) (errno = ENOSYS, -1)
54# define ftruncate(fd,o) chsize ((fd), (o))
55# define fsync(fd) _commit (fd)
56# define opendir(fd) (errno = ENOSYS, 0)
57# define readdir(fd) (errno = ENOSYS, -1)
58# define closedir(fd) (errno = ENOSYS, -1)
59# define mkdir(a,b) mkdir (a)
60
61#else
62
63# include <sys/time.h>
64# include <sys/select.h>
65# include <unistd.h>
66# include <utime.h>
67# include <signal.h>
68# define EIO_STRUCT_DIRENT struct dirent
69
70#endif
71 26
72/* perl stupidly overrides readdir and maybe others */ 27/* perl stupidly overrides readdir and maybe others */
73/* with thread-unsafe versions, imagine that :( */ 28/* with thread-unsafe versions, imagine that :( */
74#undef readdir 29#undef readdir
75#undef opendir 30#undef opendir
76#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
77 76
78#define EIO_STRUCT_STAT Stat_t 77#define EIO_STRUCT_STAT Stat_t
79 78
80/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
81#if IVSIZE >= 8 80#if IVSIZE >= 8
113 STRLEN stroffset; \ 112 STRLEN stroffset; \
114 SV *self; 113 SV *self;
115 114
116#define EIO_NO_WRAPPERS 1 115#define EIO_NO_WRAPPERS 1
117 116
117#include "libeio/config.h"
118#include "libeio/eio.h" 118#include "libeio/eio.h"
119
120#ifndef POSIX_FADV_NORMAL
121# define POSIX_FADV_NORMAL 0
122# define NO_FADVISE 1
123#endif
124
125#ifndef POSIX_FADV_SEQUENTIAL
126# define POSIX_FADV_SEQUENTIAL 0
127#endif
128
129#ifndef POSIX_FADV_RANDOM
130# define POSIX_FADV_RANDOM 0
131#endif
132
133#ifndef POSIX_FADV_NOREUSE
134# define POSIX_FADV_NOREUSE 0
135#endif
136
137#ifndef POSIX_FADV_WILLNEED
138# define POSIX_FADV_WILLNEED 0
139#endif
140
141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0
143#endif
144 119
145static int req_invoke (eio_req *req); 120static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req) 121#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp); 122static void req_destroy (eio_req *grp);
148#define EIO_DESTROY(req) req_destroy (req) 123#define EIO_DESTROY(req) req_destroy (req)
149 124
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
172
173#ifndef POSIX_FADV_NORMAL
174# define POSIX_FADV_NORMAL 0
175#endif
176#ifndef POSIX_FADV_SEQUENTIAL
177# define POSIX_FADV_SEQUENTIAL 0
178#endif
179#ifndef POSIX_FADV_RANDOM
180# define POSIX_FADV_RANDOM 0
181#endif
182#ifndef POSIX_FADV_NOREUSE
183# define POSIX_FADV_NOREUSE 0
184#endif
185#ifndef POSIX_FADV_WILLNEED
186# define POSIX_FADV_WILLNEED 0
187#endif
188#ifndef POSIX_FADV_DONTNEED
189# define POSIX_FADV_DONTNEED 0
190#endif
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
235#ifndef ST_NODEV
236# define ST_NODEV 0
237#endif
238#ifndef ST_NOEXEC
239# define ST_NOEXEC 0
240#endif
241#ifndef ST_SYNCHRONOUS
242# define ST_SYNCHRONOUS 0
243#endif
244#ifndef ST_MANDLOCK
245# define ST_MANDLOCK 0
246#endif
247#ifndef ST_WRITE
248# define ST_WRITE 0
249#endif
250#ifndef ST_APPEND
251# define ST_APPEND 0
252#endif
253#ifndef ST_IMMUTABLE
254# define ST_IMMUTABLE 0
255#endif
256#ifndef ST_NOATIME
257# define ST_NOATIME 0
258#endif
259#ifndef ST_NODIRATIME
260# define ST_NODIRATIME 0
261#endif
262#ifndef ST_RELATIME
263# define ST_RELATIME 0
264#endif
265
266#ifndef S_IFIFO
267# define S_IFIFO 0
268#endif
269#ifndef S_IFCHR
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
289#endif
290
291#ifndef MAP_ANONYMOUS
292# ifdef MAP_ANON
293# define MAP_ANONYMOUS MAP_ANON
294# else
295# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
296# endif
297#endif
298#ifndef MAP_HUGETLB
299# define MAP_HUGETLB 0
300#endif
301#ifndef MAP_LOCKED
302# define MAP_LOCKED 0
303#endif
304#ifndef MAP_NORESERVE
305# define MAP_NORESERVE 0
306#endif
307#ifndef MAP_POPULATE
308# define MAP_POPULATE 0
309#endif
310#ifndef MAP_NONBLOCK
311# define MAP_NONBLOCK 0
312#endif
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
324#ifndef PAGESIZE
325# define PAGESIZE sysconf (_SC_PAGESIZE)
326#endif
327
150enum { 328enum {
151 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 329 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152}; 330};
153
154#include "libeio/eio.c"
155 331
156typedef eio_req *aio_req; 332typedef eio_req *aio_req;
157typedef eio_req *aio_req_ornot; 333typedef eio_req *aio_req_ornot;
158 334
159static SV *on_next_submit; 335static SV *on_next_submit;
239 } 415 }
240} 416}
241 417
242static int req_invoke (eio_req *req) 418static int req_invoke (eio_req *req)
243{ 419{
244 dSP;
245
246 if (req->flags & FLAG_SV2_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
247 SvREADONLY_off (req->sv2); 421 SvREADONLY_off (req->sv2);
248 422
249 if (!EIO_CANCELLED (req) && req->callback) 423 if (!EIO_CANCELLED (req) && req->callback)
250 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
251 ENTER; 429 ENTER;
252 SAVETMPS; 430 SAVETMPS;
253 PUSHMARK (SP); 431 PUSHMARK (SP);
254 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 }
255 446
256 switch (req->type) 447 switch (req->type)
257 { 448 {
258 case EIO_READDIR: 449 case EIO_READDIR:
259 { 450 {
345 536
346 PUSHs (fh); 537 PUSHs (fh);
347 } 538 }
348 break; 539 break;
349 540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546#ifndef _WIN32
547 if (req->result >= 0)
548 {
549 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
550 HV *hv = newHV ();
551
552 rv = sv_2mortal (newRV_noinc ((SV *)hv));
553
554 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
555 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
556 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
557 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
558 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
559 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
560 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
561 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
562 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
563 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
564 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
565 }
566#endif
567
568 PUSHs (rv);
569 }
570
571 break;
572
350 case EIO_GROUP: 573 case EIO_GROUP:
351 req->int1 = 2; /* mark group as finished */ 574 req->int1 = 2; /* mark group as finished */
352 575
353 if (req->sv1) 576 if (req->sv1)
354 { 577 {
364 case EIO_NOP: 587 case EIO_NOP:
365 case EIO_BUSY: 588 case EIO_BUSY:
366 break; 589 break;
367 590
368 case EIO_READLINK: 591 case EIO_READLINK:
592 case EIO_REALPATH:
369 if (req->result > 0) 593 if (req->result > 0)
370 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); 594 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371 break; 595 break;
372 596
373 case EIO_STAT: 597 case EIO_STAT:
374 case EIO_LSTAT: 598 case EIO_LSTAT:
375 case EIO_FSTAT: 599 case EIO_FSTAT:
376 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 600 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
377 PL_laststatval = req->result; 601 PL_laststatval = req->result;
602 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
378 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 603 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379 PUSHs (sv_2mortal (newSViv (req->result))); 604 PUSHs (sv_result);
380 break; 605 break;
381 606
382 case EIO_READ: 607 case EIO_READ:
383 { 608 {
384 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));
385 *SvEND (req->sv2) = 0; 610 *SvEND (req->sv2) = 0;
386 SvPOK_only (req->sv2); 611 SvPOK_only (req->sv2);
387 SvSETMAGIC (req->sv2); 612 SvSETMAGIC (req->sv2);
388 PUSHs (sv_2mortal (newSViv (req->result))); 613 PUSHs (sv_result);
389 } 614 }
390 break; 615 break;
391 616
392 case EIO_DUP2: 617 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393 if (req->result > 0) 618 if (req->result > 0)
394 req->result = 0; 619 SvIV_set (sv_result, 0);
395 /* FALLTHROUGH */ 620 /* FALLTHROUGH */
396 621
397 default: 622 default:
398 PUSHs (sv_2mortal (newSViv (req->result))); 623 PUSHs (sv_result);
399 break; 624 break;
400 } 625 }
401 626
402 errno = req->errorno; 627 errno = req->errorno;
403 628
404 PUTBACK; 629 PUTBACK;
405 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 630 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406 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;
407 637
408 FREETMPS; 638 FREETMPS;
409 LEAVE; 639 LEAVE;
410 640
411 PUTBACK; 641 PUTBACK;
429 Safefree (req); 659 Safefree (req);
430} 660}
431 661
432static void req_cancel_subs (aio_req grp) 662static void req_cancel_subs (aio_req grp)
433{ 663{
434 aio_req sub;
435
436 if (grp->type != EIO_GROUP) 664 if (grp->type != EIO_GROUP)
437 return; 665 return;
438 666
439 SvREFCNT_dec (grp->sv2); 667 SvREFCNT_dec (grp->sv2);
440 grp->sv2 = 0; 668 grp->sv2 = 0;
441 669
442 eio_grp_cancel (grp); 670 eio_grp_cancel (grp);
443} 671}
444 672
445static void
446create_respipe (void) 673static void create_respipe (void)
447{ 674{
448 if (s_epipe_renew (&respipe)) 675 if (s_epipe_renew (&respipe))
449 croak ("IO::AIO: unable to initialize result pipe"); 676 croak ("IO::AIO: unable to initialize result pipe");
450} 677}
451 678
482 709
483 poll_wait (); 710 poll_wait ();
484 } 711 }
485} 712}
486 713
487static void atfork_child (void) 714static void ecb_cold
715reinit (void)
488{ 716{
489 create_respipe (); 717 create_respipe ();
490}
491 718
492static SV * 719 if (eio_init (want_poll, done_poll) < 0)
720 croak ("IO::AIO: unable to initialise eio library");
721}
722
723/*****************************************************************************/
724
725#if !_POSIX_MAPPED_FILES
726# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
727# define munmap(addr,length) (errno = ENOSYS, -1)
728#endif
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
739#define MMAP_MAGIC PERL_MAGIC_ext
740
741static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
742{
743 int old_errno = errno;
744 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
745 errno = old_errno;
746
747 mg->mg_obj = 0; /* just in case */
748
749 SvREADONLY_off (sv);
750
751 if (SvPVX (sv) != mg->mg_ptr)
752 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
753
754 SvCUR_set (sv, 0);
755 SvPVX (sv) = 0;
756 SvOK_off (sv);
757
758 return 0;
759}
760
761static MGVTBL mmap_vtbl = {
762 0, 0, 0, 0, mmap_free
763};
764
765/*****************************************************************************/
766
493get_cb (SV *cb_sv) 767static SV * get_cb (SV *cb_sv)
494{ 768{
495 SvGETMAGIC (cb_sv); 769 SvGETMAGIC (cb_sv);
496 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 770 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497} 771}
498 772
527{ 801{
528 static const struct { 802 static const struct {
529 const char *name; 803 const char *name;
530 IV iv; 804 IV iv;
531 } *civ, const_iv[] = { 805 } *civ, const_iv[] = {
532# define const_iv(name, value) { # name, (IV) value }, 806# define const_niv(name, value) { # name, (IV) value },
807# define const_iv(name) { # name, (IV) name },
533# define const_eio(name) { # name, (IV) EIO_ ## name }, 808# define const_eio(name) { # name, (IV) EIO_ ## name },
534 const_iv (EXDEV , EXDEV) 809 const_iv (EXDEV)
535 const_iv (ENOSYS , ENOSYS) 810 const_iv (ENOSYS)
536 const_iv (O_RDONLY, O_RDONLY) 811 const_iv (O_RDONLY)
537 const_iv (O_WRONLY, O_WRONLY) 812 const_iv (O_WRONLY)
813 const_iv (O_RDWR)
538 const_iv (O_CREAT , O_CREAT) 814 const_iv (O_CREAT)
539 const_iv (O_TRUNC , O_TRUNC) 815 const_iv (O_TRUNC)
540#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
541 const_iv (S_IFIFO , S_IFIFO) 835 const_iv (S_IFIFO)
542#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
543 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 845 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 846 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 847 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 848 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 849 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548 const_iv (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)
857
858 const_iv (ST_RDONLY)
859 const_iv (ST_NOSUID)
860 const_iv (ST_NODEV)
861 const_iv (ST_NOEXEC)
862 const_iv (ST_SYNCHRONOUS)
863 const_iv (ST_MANDLOCK)
864 const_iv (ST_WRITE)
865 const_iv (ST_APPEND)
866 const_iv (ST_IMMUTABLE)
867 const_iv (ST_NOATIME)
868 const_iv (ST_NODIRATIME)
869 const_iv (ST_RELATIME)
870
871 const_iv (PROT_NONE)
872 const_iv (PROT_EXEC)
873 const_iv (PROT_READ)
874 const_iv (PROT_WRITE)
875
876 /*const_iv (MAP_FIXED)*/
877 const_iv (MAP_PRIVATE)
878 const_iv (MAP_SHARED)
879 const_iv (MAP_ANONYMOUS)
880
881 /* linuxish */
882 const_iv (MAP_HUGETLB)
883 const_iv (MAP_LOCKED)
884 const_iv (MAP_NORESERVE)
885 const_iv (MAP_POPULATE)
886 const_iv (MAP_NONBLOCK)
887
888 const_eio (MCL_FUTURE)
889 const_eio (MCL_CURRENT)
890
891 const_eio (MS_ASYNC)
892 const_eio (MS_INVALIDATE)
893 const_eio (MS_SYNC)
894
895 const_eio (MT_MODIFY)
549 896
550 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 897 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551 const_eio (SYNC_FILE_RANGE_WRITE) 898 const_eio (SYNC_FILE_RANGE_WRITE)
552 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 899 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
900
901 const_eio (FALLOC_FL_KEEP_SIZE)
553 902
554 const_eio (READDIR_DENTS) 903 const_eio (READDIR_DENTS)
555 const_eio (READDIR_DIRS_FIRST) 904 const_eio (READDIR_DIRS_FIRST)
556 const_eio (READDIR_STAT_ORDER) 905 const_eio (READDIR_STAT_ORDER)
557 const_eio (READDIR_FOUND_UNKNOWN) 906 const_eio (READDIR_FOUND_UNKNOWN)
572 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 921 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
573 922
574 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; )
575 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 924 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
576 925
577 create_respipe (); 926 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578 927
579 if (eio_init (want_poll, done_poll) < 0) 928 reinit ();
580 croak ("IO::AIO: unable to initialise eio library");
581
582 /* atfork child called in fifo order, so before eio's handler */
583 X_THREAD_ATFORK (0, 0, atfork_child);
584} 929}
585 930
586void 931void
932reinit ()
933 PROTOTYPE:
934
935void
587max_poll_reqs (int nreqs) 936max_poll_reqs (unsigned int nreqs)
588 PROTOTYPE: $ 937 PROTOTYPE: $
589 CODE: 938 CODE:
590 eio_set_max_poll_reqs (nreqs); 939 eio_set_max_poll_reqs (nreqs);
591 940
592void 941void
594 PROTOTYPE: $ 943 PROTOTYPE: $
595 CODE: 944 CODE:
596 eio_set_max_poll_time (nseconds); 945 eio_set_max_poll_time (nseconds);
597 946
598void 947void
599min_parallel (int nthreads) 948min_parallel (unsigned int nthreads)
600 PROTOTYPE: $ 949 PROTOTYPE: $
601 CODE: 950 CODE:
602 eio_set_min_parallel (nthreads); 951 eio_set_min_parallel (nthreads);
603 952
604void 953void
605max_parallel (int nthreads) 954max_parallel (unsigned int nthreads)
606 PROTOTYPE: $ 955 PROTOTYPE: $
607 CODE: 956 CODE:
608 eio_set_max_parallel (nthreads); 957 eio_set_max_parallel (nthreads);
609 958
610void 959void
611max_idle (int nthreads) 960max_idle (unsigned int nthreads)
612 PROTOTYPE: $ 961 PROTOTYPE: $
613 CODE: 962 CODE:
614 eio_set_max_idle (nthreads); 963 eio_set_max_idle (nthreads);
615 964
616void 965void
966idle_timeout (unsigned int seconds)
967 PROTOTYPE: $
968 CODE:
969 eio_set_idle_timeout (seconds);
970
971void
617max_outstanding (int maxreqs) 972max_outstanding (unsigned int maxreqs)
618 PROTOTYPE: $ 973 PROTOTYPE: $
619 CODE: 974 CODE:
620 max_outstanding = maxreqs; 975 max_outstanding = maxreqs;
621 976
622void 977void
623aio_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)
624 PROTOTYPE: $$$;$
625 PPCODE: 979 PPCODE:
626{ 980{
627 dREQ; 981 dREQ;
628 982
629 req->type = EIO_OPEN; 983 req->type = EIO_OPEN;
635 REQ_SEND; 989 REQ_SEND;
636} 990}
637 991
638void 992void
639aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 993aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
640 PROTOTYPE: $;$
641 ALIAS: 994 ALIAS:
642 aio_fsync = EIO_FSYNC 995 aio_fsync = EIO_FSYNC
643 aio_fdatasync = EIO_FDATASYNC 996 aio_fdatasync = EIO_FDATASYNC
997 aio_syncfs = EIO_SYNCFS
644 PPCODE: 998 PPCODE:
645{ 999{
646 int fd = s_fileno_croak (fh, 0); 1000 int fd = s_fileno_croak (fh, 0);
647 dREQ; 1001 dREQ;
648 1002
653 REQ_SEND (req); 1007 REQ_SEND (req);
654} 1008}
655 1009
656void 1010void
657aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1011aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
658 PROTOTYPE: $$$$;$
659 PPCODE: 1012 PPCODE:
660{ 1013{
661 int fd = s_fileno_croak (fh, 0); 1014 int fd = s_fileno_croak (fh, 0);
662 dREQ; 1015 dREQ;
663 1016
670 1023
671 REQ_SEND (req); 1024 REQ_SEND (req);
672} 1025}
673 1026
674void 1027void
675aio_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)
676 PROTOTYPE: $;$
677 PPCODE: 1029 PPCODE:
678{ 1030{
679 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
680 int fd = s_fileno_croak (fh, 0); 1031 int fd = s_fileno_croak (fh, 0);
681 dREQ; 1032 dREQ;
682 1033
683 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))
684 { 1053 {
685 int pipefd [2]; 1054 int pipefd [2];
686 1055
1056 if (
1057#ifdef _WIN32
1058 _pipe (pipefd, 1, _O_BINARY) < 0
1059#else
687 if (pipe (pipefd) < 0 1060 pipe (pipefd) < 0
688 || close (pipefd [1]) < 0
689 || 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 )
690 abort (); /*D*/ 1065 abort (); /*D*/
691 1066
692 close_pipe = pipefd [0]; 1067 close_fd = pipefd [0];
693 } 1068 }
694 1069
695 req->type = EIO_DUP2; 1070 req->type = EIO_DUP2;
696 req->int1 = close_pipe; 1071 req->int1 = close_fd;
697 req->sv2 = newSVsv (fh); 1072 req->sv2 = newSVsv (fh);
698 req->int2 = fd; 1073 req->int2 = fd;
699 1074
700 REQ_SEND (req); 1075 REQ_SEND (req);
701} 1076}
703void 1078void
704aio_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)
705 ALIAS: 1080 ALIAS:
706 aio_read = EIO_READ 1081 aio_read = EIO_READ
707 aio_write = EIO_WRITE 1082 aio_write = EIO_WRITE
708 PROTOTYPE: $$$$$;$
709 PPCODE: 1083 PPCODE:
710{ 1084{
711 STRLEN svlen; 1085 STRLEN svlen;
712 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 1086 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
713 char *svptr = SvPVbyte (data, svlen); 1087 char *svptr = SvPVbyte (data, svlen);
754 } 1128 }
755} 1129}
756 1130
757void 1131void
758aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1132aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
759 PROTOTYPE: $$;$ 1133 ALIAS:
1134 aio_readlink = EIO_READLINK
1135 aio_realpath = EIO_REALPATH
760 PPCODE: 1136 PPCODE:
761{ 1137{
762 SV *data;
763 dREQ; 1138 dREQ;
764 1139
765 req->type = EIO_READLINK; 1140 req->type = ix;
766 req->sv1 = newSVsv (path); 1141 req->sv1 = newSVsv (path);
767 req->ptr1 = SvPVbyte_nolen (req->sv1); 1142 req->ptr1 = SvPVbyte_nolen (req->sv1);
768 1143
769 REQ_SEND; 1144 REQ_SEND;
770} 1145}
771 1146
772void 1147void
773aio_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)
774 PROTOTYPE: $$$$;$
775 PPCODE: 1149 PPCODE:
776{ 1150{
777 int ifd = s_fileno_croak (in_fh , 0); 1151 int ifd = s_fileno_croak (in_fh , 0);
778 int ofd = s_fileno_croak (out_fh, 1); 1152 int ofd = s_fileno_croak (out_fh, 1);
779 dREQ; 1153 dREQ;
789 REQ_SEND; 1163 REQ_SEND;
790} 1164}
791 1165
792void 1166void
793aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1167aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
794 PROTOTYPE: $$$;$
795 PPCODE: 1168 PPCODE:
796{ 1169{
797 int fd = s_fileno_croak (fh, 0); 1170 int fd = s_fileno_croak (fh, 0);
798 dREQ; 1171 dREQ;
799 1172
807} 1180}
808 1181
809void 1182void
810aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1183aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
811 ALIAS: 1184 ALIAS:
812 aio_stat = EIO_STAT 1185 aio_stat = EIO_STAT
813 aio_lstat = EIO_LSTAT 1186 aio_lstat = EIO_LSTAT
1187 aio_statvfs = EIO_STATVFS
814 PPCODE: 1188 PPCODE:
815{ 1189{
816 dREQ; 1190 dREQ;
817 1191
818 req->sv1 = newSVsv (fh_or_path); 1192 req->sv1 = newSVsv (fh_or_path);
822 req->type = ix; 1196 req->type = ix;
823 req->ptr1 = SvPVbyte_nolen (req->sv1); 1197 req->ptr1 = SvPVbyte_nolen (req->sv1);
824 } 1198 }
825 else 1199 else
826 { 1200 {
827 req->type = EIO_FSTAT; 1201 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
828 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1202 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829 } 1203 }
830 1204
831 REQ_SEND; 1205 REQ_SEND;
832} 1206}
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
833 1223
834void 1224void
835aio_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)
836 PPCODE: 1226 PPCODE:
837{ 1227{
995 1385
996 REQ_SEND; 1386 REQ_SEND;
997} 1387}
998 1388
999void 1389void
1390aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1391 ALIAS:
1392 aio_mtouch = EIO_MTOUCH
1393 aio_msync = EIO_MSYNC
1394 PPCODE:
1395{
1396 STRLEN svlen;
1397 char *svptr = SvPVbyte (data, svlen);
1398 UV len = SvUV (length);
1399
1400 if (offset < 0)
1401 offset += svlen;
1402
1403 if (offset < 0 || offset > svlen)
1404 croak ("offset outside of scalar");
1405
1406 if (!SvOK (length) || len + offset > svlen)
1407 len = svlen - offset;
1408
1409 {
1410 dREQ;
1411
1412 req->type = ix;
1413 req->sv2 = SvREFCNT_inc (data);
1414 req->ptr2 = (char *)svptr + offset;
1415 req->size = len;
1416 req->int1 = flags;
1417
1418 REQ_SEND;
1419 }
1420}
1421
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
1000aio_busy (double delay, SV *callback=&PL_sv_undef) 1464aio_busy (double delay, SV *callback=&PL_sv_undef)
1001 PPCODE: 1465 PPCODE:
1002{ 1466{
1003 dREQ; 1467 dREQ;
1004 1468
1008 REQ_SEND; 1472 REQ_SEND;
1009} 1473}
1010 1474
1011void 1475void
1012aio_group (SV *callback=&PL_sv_undef) 1476aio_group (SV *callback=&PL_sv_undef)
1013 PROTOTYPE: ;$
1014 PPCODE: 1477 PPCODE:
1015{ 1478{
1016 dREQ; 1479 dREQ;
1017 1480
1018 req->type = EIO_GROUP; 1481 req->type = EIO_GROUP;
1035 REQ_SEND; 1498 REQ_SEND;
1036} 1499}
1037 1500
1038int 1501int
1039aioreq_pri (int pri = 0) 1502aioreq_pri (int pri = 0)
1040 PROTOTYPE: ;$
1041 CODE: 1503 CODE:
1042 RETVAL = next_pri; 1504 RETVAL = next_pri;
1043 if (items > 0) 1505 if (items > 0)
1044 { 1506 {
1045 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1507 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1057 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1519 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058 next_pri = nice; 1520 next_pri = nice;
1059 1521
1060void 1522void
1061flush () 1523flush ()
1062 PROTOTYPE:
1063 CODE: 1524 CODE:
1064 while (eio_nreqs ()) 1525 while (eio_nreqs ())
1065 { 1526 {
1066 poll_wait (); 1527 poll_wait ();
1067 poll_cb (); 1528 poll_cb ();
1068 } 1529 }
1069 1530
1070int 1531int
1071poll() 1532poll ()
1072 PROTOTYPE:
1073 CODE: 1533 CODE:
1074 poll_wait (); 1534 poll_wait ();
1075 RETVAL = poll_cb (); 1535 RETVAL = poll_cb ();
1076 OUTPUT: 1536 OUTPUT:
1077 RETVAL 1537 RETVAL
1078 1538
1079int 1539int
1080poll_fileno() 1540poll_fileno ()
1081 PROTOTYPE:
1082 CODE: 1541 CODE:
1083 RETVAL = s_epipe_fd (&respipe); 1542 RETVAL = s_epipe_fd (&respipe);
1084 OUTPUT: 1543 OUTPUT:
1085 RETVAL 1544 RETVAL
1086 1545
1087int 1546int
1088poll_cb(...) 1547poll_cb (...)
1089 PROTOTYPE: 1548 PROTOTYPE:
1090 CODE: 1549 CODE:
1091 RETVAL = poll_cb (); 1550 RETVAL = poll_cb ();
1092 OUTPUT: 1551 OUTPUT:
1093 RETVAL 1552 RETVAL
1094 1553
1095void 1554void
1096poll_wait() 1555poll_wait ()
1097 PROTOTYPE:
1098 CODE: 1556 CODE:
1099 poll_wait (); 1557 poll_wait ();
1100 1558
1101int 1559int
1102nreqs() 1560nreqs ()
1103 PROTOTYPE:
1104 CODE: 1561 CODE:
1105 RETVAL = eio_nreqs (); 1562 RETVAL = eio_nreqs ();
1106 OUTPUT: 1563 OUTPUT:
1107 RETVAL 1564 RETVAL
1108 1565
1109int 1566int
1110nready() 1567nready ()
1111 PROTOTYPE:
1112 CODE: 1568 CODE:
1113 RETVAL = eio_nready (); 1569 RETVAL = eio_nready ();
1114 OUTPUT: 1570 OUTPUT:
1115 RETVAL 1571 RETVAL
1116 1572
1117int 1573int
1118npending() 1574npending ()
1119 PROTOTYPE:
1120 CODE: 1575 CODE:
1121 RETVAL = eio_npending (); 1576 RETVAL = eio_npending ();
1122 OUTPUT: 1577 OUTPUT:
1123 RETVAL 1578 RETVAL
1124 1579
1125int 1580int
1126nthreads() 1581nthreads ()
1127 PROTOTYPE:
1128 CODE: 1582 CODE:
1129 RETVAL = eio_nthreads (); 1583 RETVAL = eio_nthreads ();
1130 OUTPUT: 1584 OUTPUT:
1131 RETVAL 1585 RETVAL
1132 1586
1133int 1587int
1134fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1588fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135 PROTOTYPE: $$$$
1136 CODE: 1589 CODE:
1137#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138 RETVAL = posix_fadvise (fh, offset, length, advice); 1590 RETVAL = posix_fadvise (fh, offset, length, advice);
1139#else
1140 RETVAL = errno = ENOSYS;
1141#endif
1142 OUTPUT: 1591 OUTPUT:
1143 RETVAL 1592 RETVAL
1144 1593
1145ssize_t 1594IV
1146sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1595sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147 PROTOTYPE: $$$$
1148 CODE: 1596 CODE:
1149 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1597 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1150 OUTPUT: 1598 OUTPUT:
1151 RETVAL 1599 RETVAL
1152 1600
1601void
1602mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1603 PPCODE:
1604 sv_unmagic (scalar, MMAP_MAGIC);
1605{
1606 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1607 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1608 if (addr == (void *)-1)
1609 XSRETURN_NO;
1610
1611 sv_force_normal (scalar);
1612
1613 /* we store the length in mg_obj, as namlen is I32 :/ */
1614 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1615 ->mg_obj = (SV *)length;
1616
1617 SvUPGRADE (scalar, SVt_PV); /* nop... */
1618
1619 if (!(prot & PROT_WRITE))
1620 SvREADONLY_on (scalar);
1621
1622 if (SvLEN (scalar))
1623 Safefree (SvPVX (scalar));
1624
1625 SvPVX (scalar) = (char *)addr;
1626 SvCUR_set (scalar, length);
1627 SvLEN_set (scalar, 0);
1628 SvPOK_only (scalar);
1629
1630 XSRETURN_YES;
1631}
1632
1633void
1634munmap (SV *scalar)
1635 CODE:
1636 sv_unmagic (scalar, MMAP_MAGIC);
1637
1638int
1639madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1640 ALIAS:
1641 mprotect = 1
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);
1688#if _POSIX_MEMLOCK_RANGE
1689 RETVAL = munlock (addr, len);
1690#else
1691 RETVAL = ((errno = ENOSYS), -1);
1692#endif
1693}
1694 OUTPUT:
1695 RETVAL
1696
1697int
1698munlockall ()
1699 CODE:
1700#if _POSIX_MEMLOCK
1701 munlockall ();
1702#else
1703 RETVAL = -1;
1704 errno = ENOSYS;
1705#endif
1706 OUTPUT:
1707 RETVAL
1708
1153void _on_next_submit (SV *cb) 1709void _on_next_submit (SV *cb)
1154 CODE: 1710 CODE:
1155 SvREFCNT_dec (on_next_submit); 1711 SvREFCNT_dec (on_next_submit);
1156 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1712 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1157 1713

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