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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 1.179 by root, Fri Jan 7 21:47:15 2011 UTC

… …
16#include <sys/statvfs.h> 16#include <sys/statvfs.h>
17#include <limits.h> 17#include <limits.h>
18#include <fcntl.h> 18#include <fcntl.h>
19#include <sched.h> 19#include <sched.h>
20 20
21#if _POSIX_MEMLOCK 21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h> 22# include <sys/mman.h>
23#endif 23#endif
24 24
25/* perl namespace pollution */ 25/* perl namespace pollution */
26#undef VERSION 26#undef VERSION
… …
118 STRLEN stroffset; \ 118 STRLEN stroffset; \
119 SV *self; 119 SV *self;
120 120
121#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
122 122
123#include "libeio/config.h"
123#include "libeio/eio.h" 124#include "libeio/eio.h"
124 125
125#ifndef POSIX_FADV_NORMAL 126#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0 127# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif 128#endif
129#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
131#endif 131#endif
132#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
… …
140#endif 140#endif
141#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 142# define POSIX_FADV_DONTNEED 0
143#endif 143#endif
144 144
145#if !HAVE_POSIX_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151#endif
152#ifndef POSIX_MADV_SEQUENTIAL
153# define POSIX_MADV_SEQUENTIAL 0
154#endif
155#ifndef POSIX_MADV_RANDOM
156# define POSIX_MADV_RANDOM 0
157#endif
158#ifndef POSIX_MADV_WILLNEED
159# define POSIX_MADV_WILLNEED 0
160#endif
161#ifndef POSIX_MADV_DONTNEED
162# define POSIX_MADV_DONTNEED 0
163#endif
164
165#if !HAVE_POSIX_MADVISE
166# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167#endif
168
169#ifndef PROT_NONE
170# define PROT_NONE 0
171#endif
172#ifndef PROT_READ
173# define PROT_READ 0
174#endif
175#ifndef PROT_WRITE
176# define PROT_READ 0
177#endif
178#ifndef PROT_EXEC
179# define PROT_EXEC 0
180#endif
181
145#ifndef ST_NODEV 182#ifndef ST_NODEV
146# define ST_NODEV 0 183# define ST_NODEV 0
147#endif 184#endif
148#ifndef ST_NOEXEC 185#ifndef ST_NOEXEC
149# define ST_NOEXEC 0 186# define ST_NOEXEC 0
… …
171#endif 208#endif
172#ifndef ST_RELATIME 209#ifndef ST_RELATIME
173# define ST_RELATIME 0 210# define ST_RELATIME 0
174#endif 211#endif
175 212
176#ifndef MCL_CURRENT 213#ifndef MAP_ANONYMOUS
177# define MCL_CURRENT 0 214# ifdef MAP_ANON
215# define MAP_ANONYMOUS MAP_ANON
216# else
217# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
178#endif 218# endif
179#ifndef MCL_FUTURE 219#endif
180# define MCL_FUTURE 0 220#ifndef MAP_HUGETLB
221# define MAP_HUGETLB 0
222#endif
223#ifndef MAP_LOCKED
224# define MAP_LOCKED 0
225#endif
226#ifndef MAP_NORESERVE
227# define MAP_NORESERVE 0
228#endif
229#ifndef MAP_POPULATE
230# define MAP_POPULATE 0
231#endif
232#ifndef MAP_NONBLOCK
233# define MAP_NONBLOCK 0
234#endif
235
236#ifndef PAGESIZE
237# define PAGESIZE sysconf (_SC_PAGESIZE)
181#endif 238#endif
182 239
183static int req_invoke (eio_req *req); 240static int req_invoke (eio_req *req);
184#define EIO_FINISH(req) req_invoke (req) 241#define EIO_FINISH(req) req_invoke (req)
185static void req_destroy (eio_req *grp); 242static void req_destroy (eio_req *grp);
… …
277 } 334 }
278} 335}
279 336
280static int req_invoke (eio_req *req) 337static int req_invoke (eio_req *req)
281{ 338{
282 dSP;
283
284 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
285 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
286 341
287 if (!EIO_CANCELLED (req) && req->callback) 342 if (!EIO_CANCELLED (req) && req->callback)
288 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
289 ENTER; 348 ENTER;
290 SAVETMPS; 349 SAVETMPS;
291 PUSHMARK (SP); 350 PUSHMARK (SP);
292 EXTEND (SP, 1); 351 EXTEND (SP, 1);
352
353 /* do not recreate the result IV from scratch each time */
354 if (expect_true (sv_result_cache))
355 {
356 sv_result = sv_result_cache; sv_result_cache = 0;
357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
293 365
294 switch (req->type) 366 switch (req->type)
295 { 367 {
296 case EIO_READDIR: 368 case EIO_READDIR:
297 { 369 {
… …
442 case EIO_LSTAT: 514 case EIO_LSTAT:
443 case EIO_FSTAT: 515 case EIO_FSTAT:
444 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
445 PL_laststatval = req->result; 517 PL_laststatval = req->result;
446 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
447 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
448 break; 520 break;
449 521
450 case EIO_READ: 522 case EIO_READ:
451 { 523 {
452 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 524 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
453 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
454 SvPOK_only (req->sv2); 526 SvPOK_only (req->sv2);
455 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
456 PUSHs (sv_2mortal (newSViv (req->result))); 528 PUSHs (sv_result);
457 } 529 }
458 break; 530 break;
459 531
460 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
461 if (req->result > 0) 533 if (req->result > 0)
462 req->result = 0; 534 SvIV_set (sv_result, 0);
463 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
464 536
465 default: 537 default:
466 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
467 break; 539 break;
468 } 540 }
469 541
470 errno = req->errorno; 542 errno = req->errorno;
471 543
472 PUTBACK; 544 PUTBACK;
473 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
474 SPAGAIN; 546 SPAGAIN;
547
548 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
549 SvREFCNT_dec (sv_result);
550 else
551 sv_result_cache = sv_result;
475 552
476 FREETMPS; 553 FREETMPS;
477 LEAVE; 554 LEAVE;
478 555
479 PUTBACK; 556 PUTBACK;
… …
554 631
555static void atfork_child (void) 632static void atfork_child (void)
556{ 633{
557 create_respipe (); 634 create_respipe ();
558} 635}
636
637/*****************************************************************************/
638
639#if !_POSIX_MAPPED_FILES
640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
641# define munmap(addr,length) (errno = ENOSYS, -1)
642#endif
643
644#if !_POSIX_MEMORY_PROTECTION
645# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
646# define PROT_NONE 0
647# define PROT_WRITE 0
648# define MAP_PRIVATE 0
649# define MAP_SHARED 0
650# define MAP_FIXED 0
651#endif
652
653#define MMAP_MAGIC PERL_MAGIC_ext
654
655static int
656mmap_free (pTHX_ SV *sv, MAGIC *mg)
657{
658 int old_errno = errno;
659 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
660 errno = old_errno;
661
662 mg->mg_obj = 0; /* just in case */
663
664 SvREADONLY_off (sv);
665
666 if (SvPVX (sv) != mg->mg_ptr)
667 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
668
669 SvCUR_set (sv, 0);
670 SvPVX (sv) = 0;
671 SvOK_off (sv);
672
673 return 0;
674}
675
676static MGVTBL mmap_vtbl = {
677 0, 0, 0, 0, mmap_free
678};
679
680/*****************************************************************************/
559 681
560static SV * 682static SV *
561get_cb (SV *cb_sv) 683get_cb (SV *cb_sv)
562{ 684{
563 SvGETMAGIC (cb_sv); 685 SvGETMAGIC (cb_sv);
… …
595{ 717{
596 static const struct { 718 static const struct {
597 const char *name; 719 const char *name;
598 IV iv; 720 IV iv;
599 } *civ, const_iv[] = { 721 } *civ, const_iv[] = {
600# define const_iv(name, value) { # name, (IV) value }, 722# define const_niv(name, value) { # name, (IV) value },
723# define const_iv(name) { # name, (IV) name },
601# define const_eio(name) { # name, (IV) EIO_ ## name }, 724# define const_eio(name) { # name, (IV) EIO_ ## name },
602 const_iv (EXDEV , EXDEV) 725 const_iv (EXDEV)
603 const_iv (ENOSYS , ENOSYS) 726 const_iv (ENOSYS)
604 const_iv (O_RDONLY, O_RDONLY) 727 const_iv (O_RDONLY)
605 const_iv (O_WRONLY, O_WRONLY) 728 const_iv (O_WRONLY)
729 const_iv (O_RDWR)
606 const_iv (O_CREAT , O_CREAT) 730 const_iv (O_CREAT)
607 const_iv (O_TRUNC , O_TRUNC) 731 const_iv (O_TRUNC)
732 const_iv (O_EXCL)
733 const_iv (O_APPEND)
608#ifndef _WIN32 734#ifndef _WIN32
609 const_iv (S_IFIFO , S_IFIFO) 735 const_iv (S_IFIFO)
610#endif 736#endif
611 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 737 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
612 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 738 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
613 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 739 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
614 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 740 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
615 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 741 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
616 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 742 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
617 743
618 const_iv (ST_RDONLY , ST_RDONLY) 744 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
619 const_iv (ST_NOSUID , ST_NOSUID) 745 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
620 const_iv (ST_NODEV , ST_NODEV) 746 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
621 const_iv (ST_NOEXEC , ST_NOEXEC) 747 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
748 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
749
750 const_iv (ST_RDONLY)
751 const_iv (ST_NOSUID)
752 const_iv (ST_NODEV)
753 const_iv (ST_NOEXEC)
622 const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS) 754 const_iv (ST_SYNCHRONOUS)
623 const_iv (ST_MANDLOCK , ST_MANDLOCK) 755 const_iv (ST_MANDLOCK)
624 const_iv (ST_WRITE , ST_WRITE) 756 const_iv (ST_WRITE)
625 const_iv (ST_APPEND , ST_APPEND) 757 const_iv (ST_APPEND)
626 const_iv (ST_IMMUTABLE , ST_IMMUTABLE) 758 const_iv (ST_IMMUTABLE)
627 const_iv (ST_NOATIME , ST_NOATIME) 759 const_iv (ST_NOATIME)
628 const_iv (ST_NODIRATIME , ST_NODIRATIME) 760 const_iv (ST_NODIRATIME)
629 const_iv (ST_RELATIME , ST_RELATIME) 761 const_iv (ST_RELATIME)
630 762
631 const_iv (MCL_FUTURE , MCL_FUTURE) 763 const_iv (PROT_NONE)
632 const_iv (MCL_CURRENT , MCL_CURRENT) 764 const_iv (PROT_EXEC)
765 const_iv (PROT_READ)
766 const_iv (PROT_WRITE)
767
768 /*const_iv (MAP_FIXED)*/
769 const_iv (MAP_PRIVATE)
770 const_iv (MAP_SHARED)
771 const_iv (MAP_ANONYMOUS)
772
773 /* linuxish */
774 const_iv (MAP_HUGETLB)
775 const_iv (MAP_LOCKED)
776 const_iv (MAP_NORESERVE)
777 const_iv (MAP_POPULATE)
778 const_iv (MAP_NONBLOCK)
779
780 const_eio (MCL_FUTURE)
781 const_eio (MCL_CURRENT)
633 782
634 const_eio (MS_ASYNC) 783 const_eio (MS_ASYNC)
635 const_eio (MS_INVALIDATE) 784 const_eio (MS_INVALIDATE)
636 const_eio (MS_SYNC) 785 const_eio (MS_SYNC)
637 786
… …
662 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 811 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
663 812
664 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 813 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
665 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 814 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
666 815
816 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
817
667 create_respipe (); 818 create_respipe ();
668 819
669 if (eio_init (want_poll, done_poll) < 0) 820 if (eio_init (want_poll, done_poll) < 0)
670 croak ("IO::AIO: unable to initialise eio library"); 821 croak ("IO::AIO: unable to initialise eio library");
671 822
… …
709 CODE: 860 CODE:
710 max_outstanding = maxreqs; 861 max_outstanding = maxreqs;
711 862
712void 863void
713aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 864aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
714 PROTOTYPE: $$$;$
715 PPCODE: 865 PPCODE:
716{ 866{
717 dREQ; 867 dREQ;
718 868
719 req->type = EIO_OPEN; 869 req->type = EIO_OPEN;
… …
725 REQ_SEND; 875 REQ_SEND;
726} 876}
727 877
728void 878void
729aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 879aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
730 PROTOTYPE: $;$
731 ALIAS: 880 ALIAS:
732 aio_fsync = EIO_FSYNC 881 aio_fsync = EIO_FSYNC
733 aio_fdatasync = EIO_FDATASYNC 882 aio_fdatasync = EIO_FDATASYNC
734 PPCODE: 883 PPCODE:
735{ 884{
… …
743 REQ_SEND (req); 892 REQ_SEND (req);
744} 893}
745 894
746void 895void
747aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 896aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
748 PROTOTYPE: $$$$;$
749 PPCODE: 897 PPCODE:
750{ 898{
751 int fd = s_fileno_croak (fh, 0); 899 int fd = s_fileno_croak (fh, 0);
752 dREQ; 900 dREQ;
753 901
… …
761 REQ_SEND (req); 909 REQ_SEND (req);
762} 910}
763 911
764void 912void
765aio_close (SV *fh, SV *callback=&PL_sv_undef) 913aio_close (SV *fh, SV *callback=&PL_sv_undef)
766 PROTOTYPE: $;$
767 PPCODE: 914 PPCODE:
768{ 915{
769 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 916 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
770 int fd = s_fileno_croak (fh, 0); 917 int fd = s_fileno_croak (fh, 0);
771 dREQ; 918 dREQ;
… …
793void 940void
794aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 941aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
795 ALIAS: 942 ALIAS:
796 aio_read = EIO_READ 943 aio_read = EIO_READ
797 aio_write = EIO_WRITE 944 aio_write = EIO_WRITE
798 PROTOTYPE: $$$$$;$
799 PPCODE: 945 PPCODE:
800{ 946{
801 STRLEN svlen; 947 STRLEN svlen;
802 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 948 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
803 char *svptr = SvPVbyte (data, svlen); 949 char *svptr = SvPVbyte (data, svlen);
… …
844 } 990 }
845} 991}
846 992
847void 993void
848aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 994aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
849 PROTOTYPE: $$;$
850 PPCODE: 995 PPCODE:
851{ 996{
852 SV *data; 997 SV *data;
853 dREQ; 998 dREQ;
854 999
… …
859 REQ_SEND; 1004 REQ_SEND;
860} 1005}
861 1006
862void 1007void
863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1008aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
864 PROTOTYPE: $$$$;$
865 PPCODE: 1009 PPCODE:
866{ 1010{
867 int ifd = s_fileno_croak (in_fh , 0); 1011 int ifd = s_fileno_croak (in_fh , 0);
868 int ofd = s_fileno_croak (out_fh, 1); 1012 int ofd = s_fileno_croak (out_fh, 1);
869 dREQ; 1013 dREQ;
… …
879 REQ_SEND; 1023 REQ_SEND;
880} 1024}
881 1025
882void 1026void
883aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1027aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
884 PROTOTYPE: $$$;$
885 PPCODE: 1028 PPCODE:
886{ 1029{
887 int fd = s_fileno_croak (fh, 0); 1030 int fd = s_fileno_croak (fh, 0);
888 dREQ; 1031 dREQ;
889 1032
… …
1090void 1233void
1091aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1234aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1092 ALIAS: 1235 ALIAS:
1093 aio_mtouch = EIO_MTOUCH 1236 aio_mtouch = EIO_MTOUCH
1094 aio_msync = EIO_MSYNC 1237 aio_msync = EIO_MSYNC
1095 PROTOTYPE: $$$$;$
1096 PPCODE: 1238 PPCODE:
1097{ 1239{
1098 STRLEN svlen; 1240 STRLEN svlen;
1241 char *svptr = SvPVbyte (data, svlen);
1099 UV len = SvUV (length); 1242 UV len = SvUV (length);
1100 char *svptr = SvPVbyte (data, svlen);
1101 1243
1102 if (offset < 0) 1244 if (offset < 0)
1103 offset += svlen; 1245 offset += svlen;
1104 1246
1105 if (offset < 0 || offset > svlen) 1247 if (offset < 0 || offset > svlen)
… …
1110 1252
1111 { 1253 {
1112 dREQ; 1254 dREQ;
1113 1255
1114 req->type = ix; 1256 req->type = ix;
1115 req->size = len;
1116 req->sv2 = SvREFCNT_inc (data); 1257 req->sv2 = SvREFCNT_inc (data);
1117 req->ptr2 = (char *)svptr + offset; 1258 req->ptr2 = (char *)svptr + offset;
1259 req->size = len;
1118 req->int1 = flags; 1260 req->int1 = flags;
1119 1261
1120 REQ_SEND; 1262 REQ_SEND;
1121 } 1263 }
1122} 1264}
1123 1265
1124void 1266void
1267aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1268 PPCODE:
1269{
1270 STRLEN svlen;
1271 char *svptr = SvPVbyte (data, svlen);
1272 UV len = SvUV (length);
1273
1274 if (offset < 0)
1275 offset += svlen;
1276
1277 if (offset < 0 || offset > svlen)
1278 croak ("offset outside of scalar");
1279
1280 if (!SvOK (length) || len + offset > svlen)
1281 len = svlen - offset;
1282
1283 {
1284 dREQ;
1285
1286 req->type = EIO_MLOCK;
1287 req->sv2 = SvREFCNT_inc (data);
1288 req->ptr2 = (char *)svptr + offset;
1289 req->size = len;
1290
1291 REQ_SEND;
1292 }
1293}
1294
1295void
1296aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1297 PPCODE:
1298{
1299 dREQ;
1300
1301 req->type = EIO_MLOCKALL;
1302 req->int1 = flags;
1303
1304 REQ_SEND;
1305}
1306
1307void
1125aio_busy (double delay, SV *callback=&PL_sv_undef) 1308aio_busy (double delay, SV *callback=&PL_sv_undef)
1126 PPCODE: 1309 PPCODE:
1127{ 1310{
1128 dREQ; 1311 dREQ;
1129 1312
… …
1133 REQ_SEND; 1316 REQ_SEND;
1134} 1317}
1135 1318
1136void 1319void
1137aio_group (SV *callback=&PL_sv_undef) 1320aio_group (SV *callback=&PL_sv_undef)
1138 PROTOTYPE: ;$
1139 PPCODE: 1321 PPCODE:
1140{ 1322{
1141 dREQ; 1323 dREQ;
1142 1324
1143 req->type = EIO_GROUP; 1325 req->type = EIO_GROUP;
… …
1160 REQ_SEND; 1342 REQ_SEND;
1161} 1343}
1162 1344
1163int 1345int
1164aioreq_pri (int pri = 0) 1346aioreq_pri (int pri = 0)
1165 PROTOTYPE: ;$
1166 CODE: 1347 CODE:
1167 RETVAL = next_pri; 1348 RETVAL = next_pri;
1168 if (items > 0) 1349 if (items > 0)
1169 { 1350 {
1170 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1351 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1182 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1363 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1183 next_pri = nice; 1364 next_pri = nice;
1184 1365
1185void 1366void
1186flush () 1367flush ()
1187 PROTOTYPE:
1188 CODE: 1368 CODE:
1189 while (eio_nreqs ()) 1369 while (eio_nreqs ())
1190 { 1370 {
1191 poll_wait (); 1371 poll_wait ();
1192 poll_cb (); 1372 poll_cb ();
1193 } 1373 }
1194 1374
1195int 1375int
1196poll() 1376poll ()
1197 PROTOTYPE:
1198 CODE: 1377 CODE:
1199 poll_wait (); 1378 poll_wait ();
1200 RETVAL = poll_cb (); 1379 RETVAL = poll_cb ();
1201 OUTPUT: 1380 OUTPUT:
1202 RETVAL 1381 RETVAL
1203 1382
1204int 1383int
1205poll_fileno() 1384poll_fileno ()
1206 PROTOTYPE:
1207 CODE: 1385 CODE:
1208 RETVAL = s_epipe_fd (&respipe); 1386 RETVAL = s_epipe_fd (&respipe);
1209 OUTPUT: 1387 OUTPUT:
1210 RETVAL 1388 RETVAL
1211 1389
1212int 1390int
1213poll_cb(...) 1391poll_cb (...)
1214 PROTOTYPE: 1392 PROTOTYPE:
1215 CODE: 1393 CODE:
1216 RETVAL = poll_cb (); 1394 RETVAL = poll_cb ();
1217 OUTPUT: 1395 OUTPUT:
1218 RETVAL 1396 RETVAL
1219 1397
1220void 1398void
1221poll_wait() 1399poll_wait ()
1222 PROTOTYPE:
1223 CODE: 1400 CODE:
1224 poll_wait (); 1401 poll_wait ();
1225 1402
1226int 1403int
1227nreqs() 1404nreqs ()
1228 PROTOTYPE:
1229 CODE: 1405 CODE:
1230 RETVAL = eio_nreqs (); 1406 RETVAL = eio_nreqs ();
1231 OUTPUT: 1407 OUTPUT:
1232 RETVAL 1408 RETVAL
1233 1409
1234int 1410int
1235nready() 1411nready ()
1236 PROTOTYPE:
1237 CODE: 1412 CODE:
1238 RETVAL = eio_nready (); 1413 RETVAL = eio_nready ();
1239 OUTPUT: 1414 OUTPUT:
1240 RETVAL 1415 RETVAL
1241 1416
1242int 1417int
1243npending() 1418npending ()
1244 PROTOTYPE:
1245 CODE: 1419 CODE:
1246 RETVAL = eio_npending (); 1420 RETVAL = eio_npending ();
1247 OUTPUT: 1421 OUTPUT:
1248 RETVAL 1422 RETVAL
1249 1423
1250int 1424int
1251nthreads() 1425nthreads ()
1252 PROTOTYPE:
1253 CODE: 1426 CODE:
1254 RETVAL = eio_nthreads (); 1427 RETVAL = eio_nthreads ();
1255 OUTPUT: 1428 OUTPUT:
1256 RETVAL 1429 RETVAL
1257 1430
1258int 1431int
1259fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1432fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1260 PROTOTYPE: $$$$
1261 CODE: 1433 CODE:
1262#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263 RETVAL = posix_fadvise (fh, offset, length, advice); 1434 RETVAL = posix_fadvise (fh, offset, length, advice);
1264#else
1265 RETVAL = errno = ENOSYS;
1266#endif
1267 OUTPUT: 1435 OUTPUT:
1268 RETVAL 1436 RETVAL
1269 1437
1270ssize_t 1438ssize_t
1271sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1439sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1272 PROTOTYPE: $$$$
1273 CODE: 1440 CODE:
1274 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1441 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275 OUTPUT: 1442 OUTPUT:
1276 RETVAL 1443 RETVAL
1277 1444
1445void
1446mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1447 PPCODE:
1448 sv_unmagic (scalar, MMAP_MAGIC);
1449{
1450 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1451 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1452 if (addr == (void *)-1)
1453 XSRETURN_NO;
1454
1455 sv_force_normal (scalar);
1456
1457 /* we store the length in mg_obj, as namlen is I32 :/ */
1458 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1459 ->mg_obj = (SV *)length;
1460
1461 SvUPGRADE (scalar, SVt_PV); /* nop... */
1462
1463 if (!(prot & PROT_WRITE))
1464 SvREADONLY_on (scalar);
1465
1466 if (SvLEN (scalar))
1467 Safefree (SvPVX (scalar));
1468
1469 SvPVX (scalar) = (char *)addr;
1470 SvCUR_set (scalar, length);
1471 SvLEN_set (scalar, 0);
1472 SvPOK_only (scalar);
1473
1474 XSRETURN_YES;
1475}
1476
1477void
1478munmap (SV *scalar)
1479 CODE:
1480 sv_unmagic (scalar, MMAP_MAGIC);
1481
1278int 1482int
1279mlockall (int flags) 1483madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1280 PROTOTYPE: $ 1484 ALIAS:
1485 mprotect = 1
1281 CODE: 1486 CODE:
1487{
1488 STRLEN svlen;
1489 void *addr = SvPVbyte (scalar, svlen);
1490 size_t len = SvUV (length);
1491
1492 if (offset < 0)
1493 offset += svlen;
1494
1495 if (offset < 0 || offset > svlen)
1496 croak ("offset outside of scalar");
1497
1498 if (!SvOK (length) || len + offset > svlen)
1499 len = svlen - offset;
1500
1501 addr = (void *)(((intptr_t)addr) + offset);
1502 eio_page_align (&addr, &len);
1503
1504 switch (ix)
1505 {
1506 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1507 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1508 }
1509}
1510 OUTPUT:
1511 RETVAL
1512
1513int
1514munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1515 CODE:
1516{
1517 STRLEN svlen;
1518 void *addr = SvPVbyte (scalar, svlen);
1519 size_t len = SvUV (length);
1520
1521 if (offset < 0)
1522 offset += svlen;
1523
1524 if (offset < 0 || offset > svlen)
1525 croak ("offset outside of scalar");
1526
1527 if (!SvOK (length) || len + offset > svlen)
1528 len = svlen - offset;
1529
1530 addr = (void *)(((intptr_t)addr) + offset);
1531 eio_page_align (&addr, &len);
1282#if _POSIX_MEMLOCK 1532#if _POSIX_MEMLOCK_RANGE
1283#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1533 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 1534#else
1289 RETVAL ＝-1; 1535 RETVAL = ((errno = ENOSYS), -1);
1290 errno = ENOSYS;
1291#endif 1536#endif
1537}
1292 OUTPUT: 1538 OUTPUT:
1293 RETVAL 1539 RETVAL
1294 1540
1295int 1541int
1296munlockall () 1542munlockall ()
1297 PROTOTYPE:
1298 CODE: 1543 CODE:
1299#if _POSIX_MEMLOCK 1544#if _POSIX_MEMLOCK
1300 munlockall (); 1545 munlockall ();
1301#else 1546#else
1302 RETVAL ＝-1; 1547 RETVAL = -1;
1303 errno = ENOSYS; 1548 errno = ENOSYS;
1304#endif 1549#endif
1305 OUTPUT: 1550 OUTPUT:
1306 RETVAL 1551 RETVAL
1307 1552

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