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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 1.175 by root, Wed Dec 1 04:43:12 2010 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_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
… …
122 122
123#include "libeio/eio.h" 123#include "libeio/eio.h"
124 124
125#ifndef POSIX_FADV_NORMAL 125#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0 126# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif 127#endif
129#ifndef POSIX_FADV_SEQUENTIAL 128#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0 129# define POSIX_FADV_SEQUENTIAL 0
131#endif 130#endif
132#ifndef POSIX_FADV_RANDOM 131#ifndef POSIX_FADV_RANDOM
… …
140#endif 139#endif
141#ifndef POSIX_FADV_DONTNEED 140#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 141# define POSIX_FADV_DONTNEED 0
143#endif 142#endif
144 143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef POSIX_MADV_NORMAL
149# define POSIX_MADV_NORMAL 0
150#endif
151#ifndef POSIX_MADV_SEQUENTIAL
152# define POSIX_MADV_SEQUENTIAL 0
153#endif
154#ifndef POSIX_MADV_RANDOM
155# define POSIX_MADV_RANDOM 0
156#endif
157#ifndef POSIX_MADV_WILLNEED
158# define POSIX_MADV_WILLNEED 0
159#endif
160#ifndef POSIX_MADV_DONTNEED
161# define POSIX_MADV_DONTNEED 0
162#endif
163
164#if !HAVE_POSIX_MADVISE
165# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
166#endif
167
168#ifndef PROT_NONE
169# define PROT_NONE 0
170#endif
171#ifndef PROT_READ
172# define PROT_READ 0
173#endif
174#ifndef PROT_WRITE
175# define PROT_READ 0
176#endif
177#ifndef PROT_EXEC
178# define PROT_EXEC 0
179#endif
180
145#ifndef ST_NODEV 181#ifndef ST_NODEV
146# define ST_NODEV 0 182# define ST_NODEV 0
147#endif 183#endif
148#ifndef ST_NOEXEC 184#ifndef ST_NOEXEC
149# define ST_NOEXEC 0 185# define ST_NOEXEC 0
… …
171#endif 207#endif
172#ifndef ST_RELATIME 208#ifndef ST_RELATIME
173# define ST_RELATIME 0 209# define ST_RELATIME 0
174#endif 210#endif
175 211
176#ifndef MCL_CURRENT 212#ifndef MAP_ANONYMOUS
177# define MCL_CURRENT 0 213# ifdef MAP_ANON
214# define MAP_ANONYMOUS MAP_ANON
215# else
216# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
178#endif 217# endif
179#ifndef MCL_FUTURE 218#endif
180# define MCL_FUTURE 0 219#ifndef MAP_HUGETLB
220# define MAP_HUGETLB 0
221#endif
222#ifndef MAP_LOCKED
223# define MAP_LOCKED 0
224#endif
225#ifndef MAP_NORESERVE
226# define MAP_NORESERVE 0
227#endif
228#ifndef MAP_POPULATE
229# define MAP_POPULATE 0
230#endif
231#ifndef MAP_NONBLOCK
232# define MAP_NONBLOCK 0
233#endif
234
235#ifndef PAGESIZE
236# define PAGESIZE sysconf (_SC_PAGESIZE)
181#endif 237#endif
182 238
183static int req_invoke (eio_req *req); 239static int req_invoke (eio_req *req);
184#define EIO_FINISH(req) req_invoke (req) 240#define EIO_FINISH(req) req_invoke (req)
185static void req_destroy (eio_req *grp); 241static void req_destroy (eio_req *grp);
… …
277 } 333 }
278} 334}
279 335
280static int req_invoke (eio_req *req) 336static int req_invoke (eio_req *req)
281{ 337{
282 dSP;
283
284 if (req->flags & FLAG_SV2_RO_OFF) 338 if (req->flags & FLAG_SV2_RO_OFF)
285 SvREADONLY_off (req->sv2); 339 SvREADONLY_off (req->sv2);
286 340
287 if (!EIO_CANCELLED (req) && req->callback) 341 if (!EIO_CANCELLED (req) && req->callback)
288 { 342 {
343 dSP;
344 static SV *sv_result_cache; /* caches the result integer SV */
345 SV *sv_result;
346
289 ENTER; 347 ENTER;
290 SAVETMPS; 348 SAVETMPS;
291 PUSHMARK (SP); 349 PUSHMARK (SP);
292 EXTEND (SP, 1); 350 EXTEND (SP, 1);
351
352 /* do not recreate the result IV from scratch each time */
353 if (expect_true (sv_result_cache))
354 {
355 sv_result = sv_result_cache; sv_result_cache = 0;
356 SvIV_set (sv_result, req->result);
357 }
358 else
359 {
360 sv_result = newSViv (req->result);
361 SvREADONLY_on (sv_result);
362 }
293 363
294 switch (req->type) 364 switch (req->type)
295 { 365 {
296 case EIO_READDIR: 366 case EIO_READDIR:
297 { 367 {
… …
442 case EIO_LSTAT: 512 case EIO_LSTAT:
443 case EIO_FSTAT: 513 case EIO_FSTAT:
444 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 514 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
445 PL_laststatval = req->result; 515 PL_laststatval = req->result;
446 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 516 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
447 PUSHs (sv_2mortal (newSViv (req->result))); 517 PUSHs (sv_result);
448 break; 518 break;
449 519
450 case EIO_READ: 520 case EIO_READ:
451 { 521 {
452 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 522 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
453 *SvEND (req->sv2) = 0; 523 *SvEND (req->sv2) = 0;
454 SvPOK_only (req->sv2); 524 SvPOK_only (req->sv2);
455 SvSETMAGIC (req->sv2); 525 SvSETMAGIC (req->sv2);
456 PUSHs (sv_2mortal (newSViv (req->result))); 526 PUSHs (sv_result);
457 } 527 }
458 break; 528 break;
459 529
460 case EIO_DUP2: 530 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
461 if (req->result > 0) 531 if (req->result > 0)
462 req->result = 0; 532 SvIV_set (sv_result, 0);
463 /* FALLTHROUGH */ 533 /* FALLTHROUGH */
464 534
465 default: 535 default:
466 PUSHs (sv_2mortal (newSViv (req->result))); 536 PUSHs (sv_result);
467 break; 537 break;
468 } 538 }
469 539
470 errno = req->errorno; 540 errno = req->errorno;
471 541
472 PUTBACK; 542 PUTBACK;
473 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 543 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
474 SPAGAIN; 544 SPAGAIN;
545
546 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
547 SvREFCNT_dec (sv_result);
548 else
549 sv_result_cache = sv_result;
475 550
476 FREETMPS; 551 FREETMPS;
477 LEAVE; 552 LEAVE;
478 553
479 PUTBACK; 554 PUTBACK;
… …
554 629
555static void atfork_child (void) 630static void atfork_child (void)
556{ 631{
557 create_respipe (); 632 create_respipe ();
558} 633}
634
635/*****************************************************************************/
636
637#if !_POSIX_MAPPED_FILES
638# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
639# define munmap(addr,length) (errno = ENOSYS, -1)
640# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
641# define PROT_NONE 0
642# define PROT_WRITE 0
643# define MAP_PRIVATE 0
644# define MAP_SHARED 0
645# define MAP_FIXED 0
646#endif
647
648#define MMAP_MAGIC PERL_MAGIC_ext
649
650static int
651mmap_free (pTHX_ SV *sv, MAGIC *mg)
652{
653 int old_errno = errno;
654 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
655 errno = old_errno;
656
657 mg->mg_obj = 0; /* just in case */
658
659 SvREADONLY_off (sv);
660
661 if (SvPVX (sv) != mg->mg_ptr)
662 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
663
664 SvCUR_set (sv, 0);
665 SvPVX (sv) = 0;
666 SvOK_off (sv);
667
668 return 0;
669}
670
671static MGVTBL mmap_vtbl = {
672 0, 0, 0, 0, mmap_free
673};
674
675/*****************************************************************************/
559 676
560static SV * 677static SV *
561get_cb (SV *cb_sv) 678get_cb (SV *cb_sv)
562{ 679{
563 SvGETMAGIC (cb_sv); 680 SvGETMAGIC (cb_sv);
… …
595{ 712{
596 static const struct { 713 static const struct {
597 const char *name; 714 const char *name;
598 IV iv; 715 IV iv;
599 } *civ, const_iv[] = { 716 } *civ, const_iv[] = {
600# define const_iv(name, value) { # name, (IV) value }, 717# define const_niv(name, value) { # name, (IV) value },
718# define const_iv(name) { # name, (IV) name },
601# define const_eio(name) { # name, (IV) EIO_ ## name }, 719# define const_eio(name) { # name, (IV) EIO_ ## name },
602 const_iv (EXDEV , EXDEV) 720 const_iv (EXDEV)
603 const_iv (ENOSYS , ENOSYS) 721 const_iv (ENOSYS)
604 const_iv (O_RDONLY, O_RDONLY) 722 const_iv (O_RDONLY)
605 const_iv (O_WRONLY, O_WRONLY) 723 const_iv (O_WRONLY)
724 const_iv (O_RDWR)
606 const_iv (O_CREAT , O_CREAT) 725 const_iv (O_CREAT)
607 const_iv (O_TRUNC , O_TRUNC) 726 const_iv (O_TRUNC)
727 const_iv (O_EXCL)
728 const_iv (O_APPEND)
608#ifndef _WIN32 729#ifndef _WIN32
609 const_iv (S_IFIFO , S_IFIFO) 730 const_iv (S_IFIFO)
610#endif 731#endif
611 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 732 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
612 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 733 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
613 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 734 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
614 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 735 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
615 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 736 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
616 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 737 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
617 738
618 const_iv (ST_RDONLY , ST_RDONLY) 739 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
619 const_iv (ST_NOSUID , ST_NOSUID) 740 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
620 const_iv (ST_NODEV , ST_NODEV) 741 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
621 const_iv (ST_NOEXEC , ST_NOEXEC) 742 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
743 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
744
745 const_iv (ST_RDONLY)
746 const_iv (ST_NOSUID)
747 const_iv (ST_NODEV)
748 const_iv (ST_NOEXEC)
622 const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS) 749 const_iv (ST_SYNCHRONOUS)
623 const_iv (ST_MANDLOCK , ST_MANDLOCK) 750 const_iv (ST_MANDLOCK)
624 const_iv (ST_WRITE , ST_WRITE) 751 const_iv (ST_WRITE)
625 const_iv (ST_APPEND , ST_APPEND) 752 const_iv (ST_APPEND)
626 const_iv (ST_IMMUTABLE , ST_IMMUTABLE) 753 const_iv (ST_IMMUTABLE)
627 const_iv (ST_NOATIME , ST_NOATIME) 754 const_iv (ST_NOATIME)
628 const_iv (ST_NODIRATIME , ST_NODIRATIME) 755 const_iv (ST_NODIRATIME)
629 const_iv (ST_RELATIME , ST_RELATIME) 756 const_iv (ST_RELATIME)
630 757
631 const_iv (MCL_FUTURE , MCL_FUTURE) 758 const_iv (PROT_NONE)
632 const_iv (MCL_CURRENT , MCL_CURRENT) 759 const_iv (PROT_EXEC)
760 const_iv (PROT_READ)
761 const_iv (PROT_WRITE)
762
763 /*const_iv (MAP_FIXED)*/
764 const_iv (MAP_PRIVATE)
765 const_iv (MAP_SHARED)
766 const_iv (MAP_ANONYMOUS)
767
768 /* linuxish */
769 const_iv (MAP_HUGETLB)
770 const_iv (MAP_LOCKED)
771 const_iv (MAP_NORESERVE)
772 const_iv (MAP_POPULATE)
773 const_iv (MAP_NONBLOCK)
774
775 const_eio (MCL_FUTURE)
776 const_eio (MCL_CURRENT)
633 777
634 const_eio (MS_ASYNC) 778 const_eio (MS_ASYNC)
635 const_eio (MS_INVALIDATE) 779 const_eio (MS_INVALIDATE)
636 const_eio (MS_SYNC) 780 const_eio (MS_SYNC)
637 781
… …
662 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 806 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
663 807
664 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 808 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
665 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 809 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
666 810
811 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
812
667 create_respipe (); 813 create_respipe ();
668 814
669 if (eio_init (want_poll, done_poll) < 0) 815 if (eio_init (want_poll, done_poll) < 0)
670 croak ("IO::AIO: unable to initialise eio library"); 816 croak ("IO::AIO: unable to initialise eio library");
671 817
… …
709 CODE: 855 CODE:
710 max_outstanding = maxreqs; 856 max_outstanding = maxreqs;
711 857
712void 858void
713aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 859aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
714 PROTOTYPE: $$$;$
715 PPCODE: 860 PPCODE:
716{ 861{
717 dREQ; 862 dREQ;
718 863
719 req->type = EIO_OPEN; 864 req->type = EIO_OPEN;
… …
725 REQ_SEND; 870 REQ_SEND;
726} 871}
727 872
728void 873void
729aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 874aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
730 PROTOTYPE: $;$
731 ALIAS: 875 ALIAS:
732 aio_fsync = EIO_FSYNC 876 aio_fsync = EIO_FSYNC
733 aio_fdatasync = EIO_FDATASYNC 877 aio_fdatasync = EIO_FDATASYNC
734 PPCODE: 878 PPCODE:
735{ 879{
… …
743 REQ_SEND (req); 887 REQ_SEND (req);
744} 888}
745 889
746void 890void
747aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 891aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
748 PROTOTYPE: $$$$;$
749 PPCODE: 892 PPCODE:
750{ 893{
751 int fd = s_fileno_croak (fh, 0); 894 int fd = s_fileno_croak (fh, 0);
752 dREQ; 895 dREQ;
753 896
… …
761 REQ_SEND (req); 904 REQ_SEND (req);
762} 905}
763 906
764void 907void
765aio_close (SV *fh, SV *callback=&PL_sv_undef) 908aio_close (SV *fh, SV *callback=&PL_sv_undef)
766 PROTOTYPE: $;$
767 PPCODE: 909 PPCODE:
768{ 910{
769 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 911 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
770 int fd = s_fileno_croak (fh, 0); 912 int fd = s_fileno_croak (fh, 0);
771 dREQ; 913 dREQ;
… …
793void 935void
794aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 936aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
795 ALIAS: 937 ALIAS:
796 aio_read = EIO_READ 938 aio_read = EIO_READ
797 aio_write = EIO_WRITE 939 aio_write = EIO_WRITE
798 PROTOTYPE: $$$$$;$
799 PPCODE: 940 PPCODE:
800{ 941{
801 STRLEN svlen; 942 STRLEN svlen;
802 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 943 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
803 char *svptr = SvPVbyte (data, svlen); 944 char *svptr = SvPVbyte (data, svlen);
… …
844 } 985 }
845} 986}
846 987
847void 988void
848aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 989aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
849 PROTOTYPE: $$;$
850 PPCODE: 990 PPCODE:
851{ 991{
852 SV *data; 992 SV *data;
853 dREQ; 993 dREQ;
854 994
… …
859 REQ_SEND; 999 REQ_SEND;
860} 1000}
861 1001
862void 1002void
863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1003aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
864 PROTOTYPE: $$$$;$
865 PPCODE: 1004 PPCODE:
866{ 1005{
867 int ifd = s_fileno_croak (in_fh , 0); 1006 int ifd = s_fileno_croak (in_fh , 0);
868 int ofd = s_fileno_croak (out_fh, 1); 1007 int ofd = s_fileno_croak (out_fh, 1);
869 dREQ; 1008 dREQ;
… …
879 REQ_SEND; 1018 REQ_SEND;
880} 1019}
881 1020
882void 1021void
883aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1022aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
884 PROTOTYPE: $$$;$
885 PPCODE: 1023 PPCODE:
886{ 1024{
887 int fd = s_fileno_croak (fh, 0); 1025 int fd = s_fileno_croak (fh, 0);
888 dREQ; 1026 dREQ;
889 1027
… …
1090void 1228void
1091aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1229aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1092 ALIAS: 1230 ALIAS:
1093 aio_mtouch = EIO_MTOUCH 1231 aio_mtouch = EIO_MTOUCH
1094 aio_msync = EIO_MSYNC 1232 aio_msync = EIO_MSYNC
1095 PROTOTYPE: $$$$;$
1096 PPCODE: 1233 PPCODE:
1097{ 1234{
1098 STRLEN svlen; 1235 STRLEN svlen;
1236 char *svptr = SvPVbyte (data, svlen);
1099 UV len = SvUV (length); 1237 UV len = SvUV (length);
1100 char *svptr = SvPVbyte (data, svlen);
1101 1238
1102 if (offset < 0) 1239 if (offset < 0)
1103 offset += svlen; 1240 offset += svlen;
1104 1241
1105 if (offset < 0 || offset > svlen) 1242 if (offset < 0 || offset > svlen)
… …
1110 1247
1111 { 1248 {
1112 dREQ; 1249 dREQ;
1113 1250
1114 req->type = ix; 1251 req->type = ix;
1115 req->size = len;
1116 req->sv2 = SvREFCNT_inc (data); 1252 req->sv2 = SvREFCNT_inc (data);
1117 req->ptr2 = (char *)svptr + offset; 1253 req->ptr2 = (char *)svptr + offset;
1254 req->size = len;
1118 req->int1 = flags; 1255 req->int1 = flags;
1119 1256
1120 REQ_SEND; 1257 REQ_SEND;
1121 } 1258 }
1122} 1259}
1123 1260
1124void 1261void
1262aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1263 PPCODE:
1264{
1265 STRLEN svlen;
1266 char *svptr = SvPVbyte (data, svlen);
1267 UV len = SvUV (length);
1268
1269 if (offset < 0)
1270 offset += svlen;
1271
1272 if (offset < 0 || offset > svlen)
1273 croak ("offset outside of scalar");
1274
1275 if (!SvOK (length) || len + offset > svlen)
1276 len = svlen - offset;
1277
1278 {
1279 dREQ;
1280
1281 req->type = EIO_MLOCK;
1282 req->sv2 = SvREFCNT_inc (data);
1283 req->ptr2 = (char *)svptr + offset;
1284 req->size = len;
1285
1286 REQ_SEND;
1287 }
1288}
1289
1290void
1291aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req->type = EIO_MLOCKALL;
1297 req->int1 = flags;
1298
1299 REQ_SEND;
1300}
1301
1302void
1125aio_busy (double delay, SV *callback=&PL_sv_undef) 1303aio_busy (double delay, SV *callback=&PL_sv_undef)
1126 PPCODE: 1304 PPCODE:
1127{ 1305{
1128 dREQ; 1306 dREQ;
1129 1307
… …
1133 REQ_SEND; 1311 REQ_SEND;
1134} 1312}
1135 1313
1136void 1314void
1137aio_group (SV *callback=&PL_sv_undef) 1315aio_group (SV *callback=&PL_sv_undef)
1138 PROTOTYPE: ;$
1139 PPCODE: 1316 PPCODE:
1140{ 1317{
1141 dREQ; 1318 dREQ;
1142 1319
1143 req->type = EIO_GROUP; 1320 req->type = EIO_GROUP;
… …
1160 REQ_SEND; 1337 REQ_SEND;
1161} 1338}
1162 1339
1163int 1340int
1164aioreq_pri (int pri = 0) 1341aioreq_pri (int pri = 0)
1165 PROTOTYPE: ;$
1166 CODE: 1342 CODE:
1167 RETVAL = next_pri; 1343 RETVAL = next_pri;
1168 if (items > 0) 1344 if (items > 0)
1169 { 1345 {
1170 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1346 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1182 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1358 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1183 next_pri = nice; 1359 next_pri = nice;
1184 1360
1185void 1361void
1186flush () 1362flush ()
1187 PROTOTYPE:
1188 CODE: 1363 CODE:
1189 while (eio_nreqs ()) 1364 while (eio_nreqs ())
1190 { 1365 {
1191 poll_wait (); 1366 poll_wait ();
1192 poll_cb (); 1367 poll_cb ();
1193 } 1368 }
1194 1369
1195int 1370int
1196poll() 1371poll ()
1197 PROTOTYPE:
1198 CODE: 1372 CODE:
1199 poll_wait (); 1373 poll_wait ();
1200 RETVAL = poll_cb (); 1374 RETVAL = poll_cb ();
1201 OUTPUT: 1375 OUTPUT:
1202 RETVAL 1376 RETVAL
1203 1377
1204int 1378int
1205poll_fileno() 1379poll_fileno ()
1206 PROTOTYPE:
1207 CODE: 1380 CODE:
1208 RETVAL = s_epipe_fd (&respipe); 1381 RETVAL = s_epipe_fd (&respipe);
1209 OUTPUT: 1382 OUTPUT:
1210 RETVAL 1383 RETVAL
1211 1384
1212int 1385int
1213poll_cb(...) 1386poll_cb (...)
1214 PROTOTYPE: 1387 PROTOTYPE:
1215 CODE: 1388 CODE:
1216 RETVAL = poll_cb (); 1389 RETVAL = poll_cb ();
1217 OUTPUT: 1390 OUTPUT:
1218 RETVAL 1391 RETVAL
1219 1392
1220void 1393void
1221poll_wait() 1394poll_wait ()
1222 PROTOTYPE:
1223 CODE: 1395 CODE:
1224 poll_wait (); 1396 poll_wait ();
1225 1397
1226int 1398int
1227nreqs() 1399nreqs ()
1228 PROTOTYPE:
1229 CODE: 1400 CODE:
1230 RETVAL = eio_nreqs (); 1401 RETVAL = eio_nreqs ();
1231 OUTPUT: 1402 OUTPUT:
1232 RETVAL 1403 RETVAL
1233 1404
1234int 1405int
1235nready() 1406nready ()
1236 PROTOTYPE:
1237 CODE: 1407 CODE:
1238 RETVAL = eio_nready (); 1408 RETVAL = eio_nready ();
1239 OUTPUT: 1409 OUTPUT:
1240 RETVAL 1410 RETVAL
1241 1411
1242int 1412int
1243npending() 1413npending ()
1244 PROTOTYPE:
1245 CODE: 1414 CODE:
1246 RETVAL = eio_npending (); 1415 RETVAL = eio_npending ();
1247 OUTPUT: 1416 OUTPUT:
1248 RETVAL 1417 RETVAL
1249 1418
1250int 1419int
1251nthreads() 1420nthreads ()
1252 PROTOTYPE:
1253 CODE: 1421 CODE:
1254 RETVAL = eio_nthreads (); 1422 RETVAL = eio_nthreads ();
1255 OUTPUT: 1423 OUTPUT:
1256 RETVAL 1424 RETVAL
1257 1425
1258int 1426int
1259fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1427fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1260 PROTOTYPE: $$$$
1261 CODE: 1428 CODE:
1262#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263 RETVAL = posix_fadvise (fh, offset, length, advice); 1429 RETVAL = posix_fadvise (fh, offset, length, advice);
1264#else
1265 RETVAL = errno = ENOSYS;
1266#endif
1267 OUTPUT: 1430 OUTPUT:
1268 RETVAL 1431 RETVAL
1269 1432
1270ssize_t 1433ssize_t
1271sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1434sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1272 PROTOTYPE: $$$$
1273 CODE: 1435 CODE:
1274 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1436 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275 OUTPUT: 1437 OUTPUT:
1276 RETVAL 1438 RETVAL
1277 1439
1440void
1441mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1442 PPCODE:
1443 sv_unmagic (scalar, MMAP_MAGIC);
1444{
1445 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1446 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1447 if (addr == (void *)-1)
1448 XSRETURN_NO;
1449
1450 sv_force_normal (scalar);
1451
1452 /* we store the length in mg_obj, as namlen is I32 :/ */
1453 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1454 ->mg_obj = (SV *)length;
1455
1456 SvUPGRADE (scalar, SVt_PV); /* nop... */
1457
1458 if (!(prot & PROT_WRITE))
1459 SvREADONLY_on (scalar);
1460
1461 if (SvLEN (scalar))
1462 Safefree (SvPVX (scalar));
1463
1464 SvPVX (scalar) = (char *)addr;
1465 SvCUR_set (scalar, length);
1466 SvLEN_set (scalar, 0);
1467 SvPOK_only (scalar);
1468
1469 XSRETURN_YES;
1470}
1471
1472void
1473munmap (SV *scalar)
1474 CODE:
1475 sv_unmagic (scalar, MMAP_MAGIC);
1476
1278int 1477int
1279mlockall (int flags) 1478madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1280 PROTOTYPE: $ 1479 ALIAS:
1480 mprotect = 1
1281 CODE: 1481 CODE:
1482{
1483 STRLEN svlen;
1484 void *addr = SvPVbyte (scalar, svlen);
1485 size_t len = SvUV (length);
1486
1487 if (offset < 0)
1488 offset += svlen;
1489
1490 if (offset < 0 || offset > svlen)
1491 croak ("offset outside of scalar");
1492
1493 if (!SvOK (length) || len + offset > svlen)
1494 len = svlen - offset;
1495
1496 addr = (void *)(((intptr_t)addr) + offset);
1497 eio_page_align (&addr, &len);
1498
1499 switch (ix)
1500 {
1501 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1502 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1503 }
1504}
1505 OUTPUT:
1506 RETVAL
1507
1508int
1509munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1510 CODE:
1511{
1512 STRLEN svlen;
1513 void *addr = SvPVbyte (scalar, svlen);
1514 size_t len = SvUV (length);
1515
1516 if (offset < 0)
1517 offset += svlen;
1518
1519 if (offset < 0 || offset > svlen)
1520 croak ("offset outside of scalar");
1521
1522 if (!SvOK (length) || len + offset > svlen)
1523 len = svlen - offset;
1524
1525 addr = (void *)(((intptr_t)addr) + offset);
1526 eio_page_align (&addr, &len);
1282#if _POSIX_MEMLOCK 1527#if _POSIX_MEMLOCK
1283#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1528 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 1529#else
1289 RETVAL ＝-1; 1530 RETVAL = ((errno = ENOSYS), -1);
1290 errno = ENOSYS;
1291#endif 1531#endif
1532}
1292 OUTPUT: 1533 OUTPUT:
1293 RETVAL 1534 RETVAL
1294 1535
1295int 1536int
1296munlockall () 1537munlockall ()
1297 PROTOTYPE:
1298 CODE: 1538 CODE:
1299#if _POSIX_MEMLOCK 1539#if _POSIX_MEMLOCK
1300 munlockall (); 1540 munlockall ();
1301#else 1541#else
1302 RETVAL ＝-1; 1542 RETVAL = -1;
1303 errno = ENOSYS; 1543 errno = ENOSYS;
1304#endif 1544#endif
1305 OUTPUT: 1545 OUTPUT:
1306 RETVAL 1546 RETVAL
1307 1547

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