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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 1.164 by root, Tue May 4 21:14:01 2010 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>
16#include <limits.h> 17#include <limits.h>
17#include <fcntl.h> 18#include <fcntl.h>
18#include <sched.h> 19#include <sched.h>
20
21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
19 24
20/* perl namespace pollution */ 25/* perl namespace pollution */
21#undef VERSION 26#undef VERSION
22 27
23#ifdef _WIN32 28#ifdef _WIN32
119 124
120#ifndef POSIX_FADV_NORMAL 125#ifndef POSIX_FADV_NORMAL
121# define POSIX_FADV_NORMAL 0 126# define POSIX_FADV_NORMAL 0
122# define NO_FADVISE 1 127# define NO_FADVISE 1
123#endif 128#endif
124
125#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
126# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
127#endif 131#endif
128
129#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
130# define POSIX_FADV_RANDOM 0 133# define POSIX_FADV_RANDOM 0
131#endif 134#endif
132
133#ifndef POSIX_FADV_NOREUSE 135#ifndef POSIX_FADV_NOREUSE
134# define POSIX_FADV_NOREUSE 0 136# define POSIX_FADV_NOREUSE 0
135#endif 137#endif
136
137#ifndef POSIX_FADV_WILLNEED 138#ifndef POSIX_FADV_WILLNEED
138# define POSIX_FADV_WILLNEED 0 139# define POSIX_FADV_WILLNEED 0
139#endif 140#endif
140
141#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 142# 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
183#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON
186# else
187# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188# endif
189#endif
190#ifndef MAP_HUGETLB
191# define MAP_HUGETLB 0
192#endif
193#ifndef MAP_LOCKED
194# define MAP_LOCKED 0
195#endif
196#ifndef MAP_NORESERVE
197# define MAP_NORESERVE 0
198#endif
199#ifndef MAP_POPULATE
200# define MAP_POPULATE 0
201#endif
202#ifndef MAP_NONBLOCK
203# define MAP_NONBLOCK 0
204#endif
205
206#ifndef PAGESIZE
207# define PAGESIZE sysconf (_SC_PAGESIZE)
143#endif 208#endif
144 209
145static int req_invoke (eio_req *req); 210static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req) 211#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp); 212static void req_destroy (eio_req *grp);
345 410
346 PUSHs (fh); 411 PUSHs (fh);
347 } 412 }
348 break; 413 break;
349 414
415 case EIO_STATVFS:
416 case EIO_FSTATVFS:
417 {
418 SV *rv = &PL_sv_undef;
419
420 if (req->result >= 0)
421 {
422 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423 HV *hv = newHV ();
424
425 rv = sv_2mortal (newRV_noinc ((SV *)hv));
426
427 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
428 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
429 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
430 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
431 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
432 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
433 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
434 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
436 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438 }
439
440 PUSHs (rv);
441 }
442
443 break;
444
350 case EIO_GROUP: 445 case EIO_GROUP:
351 req->int1 = 2; /* mark group as finished */ 446 req->int1 = 2; /* mark group as finished */
352 447
353 if (req->sv1) 448 if (req->sv1)
354 { 449 {
486 581
487static void atfork_child (void) 582static void atfork_child (void)
488{ 583{
489 create_respipe (); 584 create_respipe ();
490} 585}
586
587/*****************************************************************************/
588
589#if !_POSIX_MAPPED_FILES
590# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591# define munmap(addr,length) (errno = ENOSYS, -1)
592#endif
593
594#define MMAP_MAGIC PERL_MAGIC_ext
595
596static int
597mmap_free (pTHX_ SV *sv, MAGIC *mg)
598{
599 int old_errno = errno;
600 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601 errno = old_errno;
602
603 mg->mg_obj = 0; /* just in case */
604
605 SvREADONLY_off (sv);
606 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0;
609 SvOK_off (sv);
610
611 return 0;
612}
613
614static MGVTBL mmap_vtbl = {
615 0, 0, 0, 0, mmap_free
616};
617
618/*****************************************************************************/
491 619
492static SV * 620static SV *
493get_cb (SV *cb_sv) 621get_cb (SV *cb_sv)
494{ 622{
495 SvGETMAGIC (cb_sv); 623 SvGETMAGIC (cb_sv);
527{ 655{
528 static const struct { 656 static const struct {
529 const char *name; 657 const char *name;
530 IV iv; 658 IV iv;
531 } *civ, const_iv[] = { 659 } *civ, const_iv[] = {
532# define const_iv(name, value) { # name, (IV) value }, 660# define const_niv(name, value) { # name, (IV) value },
661# define const_iv(name) { # name, (IV) name },
533# define const_eio(name) { # name, (IV) EIO_ ## name }, 662# define const_eio(name) { # name, (IV) EIO_ ## name },
534 const_iv (EXDEV , EXDEV) 663 const_iv (EXDEV)
535 const_iv (ENOSYS , ENOSYS) 664 const_iv (ENOSYS)
536 const_iv (O_RDONLY, O_RDONLY) 665 const_iv (O_RDONLY)
537 const_iv (O_WRONLY, O_WRONLY) 666 const_iv (O_WRONLY)
667 const_iv (O_RDWR)
538 const_iv (O_CREAT , O_CREAT) 668 const_iv (O_CREAT)
539 const_iv (O_TRUNC , O_TRUNC) 669 const_iv (O_TRUNC)
670 const_iv (O_EXCL)
671 const_iv (O_APPEND)
540#ifndef _WIN32 672#ifndef _WIN32
541 const_iv (S_IFIFO , S_IFIFO) 673 const_iv (S_IFIFO)
542#endif 674#endif
543 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 675 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 676 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 677 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 678 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 679 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 680 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
681
682 const_iv (ST_RDONLY)
683 const_iv (ST_NOSUID)
684 const_iv (ST_NODEV)
685 const_iv (ST_NOEXEC)
686 const_iv (ST_SYNCHRONOUS)
687 const_iv (ST_MANDLOCK)
688 const_iv (ST_WRITE)
689 const_iv (ST_APPEND)
690 const_iv (ST_IMMUTABLE)
691 const_iv (ST_NOATIME)
692 const_iv (ST_NODIRATIME)
693 const_iv (ST_RELATIME)
694
695 const_iv (PROT_EXEC)
696 const_iv (PROT_NONE)
697 const_iv (PROT_READ)
698 const_iv (PROT_WRITE)
699
700 /*const_iv (MAP_FIXED)*/
701 const_iv (MAP_PRIVATE)
702 const_iv (MAP_SHARED)
703 const_iv (MAP_ANONYMOUS)
704
705 /* linuxish */
706 const_iv (MAP_HUGETLB)
707 const_iv (MAP_LOCKED)
708 const_iv (MAP_NORESERVE)
709 const_iv (MAP_POPULATE)
710 const_iv (MAP_NONBLOCK)
711
712 const_iv (MCL_FUTURE)
713 const_iv (MCL_CURRENT)
714
715 const_eio (MS_ASYNC)
716 const_eio (MS_INVALIDATE)
717 const_eio (MS_SYNC)
718
719 const_eio (MT_MODIFY)
549 720
550 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 721 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551 const_eio (SYNC_FILE_RANGE_WRITE) 722 const_eio (SYNC_FILE_RANGE_WRITE)
552 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 723 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
553 724
571 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); 742 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 743 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
573 744
574 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 745 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
575 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 746 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
747
748 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
576 749
577 create_respipe (); 750 create_respipe ();
578 751
579 if (eio_init (want_poll, done_poll) < 0) 752 if (eio_init (want_poll, done_poll) < 0)
580 croak ("IO::AIO: unable to initialise eio library"); 753 croak ("IO::AIO: unable to initialise eio library");
807} 980}
808 981
809void 982void
810aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 983aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
811 ALIAS: 984 ALIAS:
812 aio_stat = EIO_STAT 985 aio_stat = EIO_STAT
813 aio_lstat = EIO_LSTAT 986 aio_lstat = EIO_LSTAT
987 aio_statvfs = EIO_STATVFS
814 PPCODE: 988 PPCODE:
815{ 989{
816 dREQ; 990 dREQ;
817 991
818 req->sv1 = newSVsv (fh_or_path); 992 req->sv1 = newSVsv (fh_or_path);
822 req->type = ix; 996 req->type = ix;
823 req->ptr1 = SvPVbyte_nolen (req->sv1); 997 req->ptr1 = SvPVbyte_nolen (req->sv1);
824 } 998 }
825 else 999 else
826 { 1000 {
827 req->type = EIO_FSTAT; 1001 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
828 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1002 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829 } 1003 }
830 1004
831 REQ_SEND; 1005 REQ_SEND;
832} 1006}
995 1169
996 REQ_SEND; 1170 REQ_SEND;
997} 1171}
998 1172
999void 1173void
1174aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1175 ALIAS:
1176 aio_mtouch = EIO_MTOUCH
1177 aio_msync = EIO_MSYNC
1178 PROTOTYPE: $$$$;$
1179 PPCODE:
1180{
1181 STRLEN svlen;
1182 UV len = SvUV (length);
1183 char *svptr = SvPVbyte (data, svlen);
1184
1185 if (offset < 0)
1186 offset += svlen;
1187
1188 if (offset < 0 || offset > svlen)
1189 croak ("offset outside of scalar");
1190
1191 if (!SvOK (length) || len + offset > svlen)
1192 len = svlen - offset;
1193
1194 {
1195 dREQ;
1196
1197 req->type = ix;
1198 req->size = len;
1199 req->sv2 = SvREFCNT_inc (data);
1200 req->ptr2 = (char *)svptr + offset;
1201 req->int1 = flags;
1202
1203 REQ_SEND;
1204 }
1205}
1206
1207void
1000aio_busy (double delay, SV *callback=&PL_sv_undef) 1208aio_busy (double delay, SV *callback=&PL_sv_undef)
1001 PPCODE: 1209 PPCODE:
1002{ 1210{
1003 dREQ; 1211 dREQ;
1004 1212
1135 PROTOTYPE: $$$$ 1343 PROTOTYPE: $$$$
1136 CODE: 1344 CODE:
1137#if _XOPEN_SOURCE >= 600 && !NO_FADVISE 1345#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138 RETVAL = posix_fadvise (fh, offset, length, advice); 1346 RETVAL = posix_fadvise (fh, offset, length, advice);
1139#else 1347#else
1140 RETVAL = errno = ENOSYS; 1348 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1141#endif 1349#endif
1142 OUTPUT: 1350 OUTPUT:
1143 RETVAL 1351 RETVAL
1144 1352
1145ssize_t 1353ssize_t
1148 CODE: 1356 CODE:
1149 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1357 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1150 OUTPUT: 1358 OUTPUT:
1151 RETVAL 1359 RETVAL
1152 1360
1361void
1362mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1363 PROTOTYPE: $$$$$;$
1364 PPCODE:
1365 sv_unmagic (scalar, MMAP_MAGIC);
1366{
1367 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1368 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369 if (addr == (void *)-1)
1370 XSRETURN_NO;
1371
1372 /* we store the length in mg_obj, as namlen is I32 :/ */
1373 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374 ->mg_obj = (SV *)length;
1375
1376 SvUPGRADE (scalar, SVt_PV); /* nop... */
1377 if (!(prot & PROT_WRITE))
1378 SvREADONLY_on (scalar);
1379
1380 SvPVX (scalar) = (char *)addr;
1381 SvCUR_set (scalar, length);
1382 SvLEN_set (scalar, 0);
1383 SvPOK_only (scalar);
1384
1385 XSRETURN_YES;
1386}
1387
1388void
1389munmap (SV *scalar)
1390 PROTOTYPE: $
1391 CODE:
1392 sv_unmagic (scalar, MMAP_MAGIC);
1393
1394int
1395mlockall (int flags)
1396 PROTOTYPE: $
1397 CODE:
1398#if _POSIX_MEMLOCK
1399#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1400 extern int mallopt (int, int);
1401 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1402#endif
1403 mlockall (flags);
1404#else
1405 RETVAL = -1;
1406 errno = ENOSYS;
1407#endif
1408 OUTPUT:
1409 RETVAL
1410
1411int
1412munlockall ()
1413 PROTOTYPE:
1414 CODE:
1415#if _POSIX_MEMLOCK
1416 munlockall ();
1417#else
1418 RETVAL = -1;
1419 errno = ENOSYS;
1420#endif
1421 OUTPUT:
1422 RETVAL
1423
1153void _on_next_submit (SV *cb) 1424void _on_next_submit (SV *cb)
1154 CODE: 1425 CODE:
1155 SvREFCNT_dec (on_next_submit); 1426 SvREFCNT_dec (on_next_submit);
1156 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1427 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1157 1428

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