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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 1.162 by root, Sun Jan 10 23:05:12 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
24
25#if !_POSIX_MAPPED_FILES
26# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
27# define munmap(addr,length) (errno = ENOSYS, -1)
23#endif 28#endif
24 29
25/* perl namespace pollution */ 30/* perl namespace pollution */
26#undef VERSION 31#undef VERSION
27 32
… …
178#endif 183#endif
179#ifndef MCL_FUTURE 184#ifndef MCL_FUTURE
180# define MCL_FUTURE 0 185# define MCL_FUTURE 0
181#endif 186#endif
182 187
188#ifndef MAP_ANONYMOUS
189# ifdef MAP_ANON
190# define MAP_ANONYMOUS MAP_ANON
191# else
192# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
193# endif
194#endif
195#ifndef MAP_HUGETLB
196# define MAP_HUGETLB 0
197#endif
198#ifndef MAP_LOCKED
199# define MAP_LOCKED 0
200#endif
201#ifndef MAP_NORESERVE
202# define MAP_NORESERVE 0
203#endif
204#ifndef MAP_POPULATE
205# define MAP_POPULATE 0
206#endif
207#ifndef MAP_NONBLOCK
208# define MAP_NONBLOCK 0
209#endif
210
211#ifndef PAGESIZE
212# define PAGESIZE sysconf (_SC_PAGESIZE)
213#endif
214
183static int req_invoke (eio_req *req); 215static int req_invoke (eio_req *req);
184#define EIO_FINISH(req) req_invoke (req) 216#define EIO_FINISH(req) req_invoke (req)
185static void req_destroy (eio_req *grp); 217static void req_destroy (eio_req *grp);
186#define EIO_DESTROY(req) req_destroy (req) 218#define EIO_DESTROY(req) req_destroy (req)
187 219
… …
554 586
555static void atfork_child (void) 587static void atfork_child (void)
556{ 588{
557 create_respipe (); 589 create_respipe ();
558} 590}
591
592/*****************************************************************************/
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/*****************************************************************************/
559 619
560static SV * 620static SV *
561get_cb (SV *cb_sv) 621get_cb (SV *cb_sv)
562{ 622{
563 SvGETMAGIC (cb_sv); 623 SvGETMAGIC (cb_sv);
… …
595{ 655{
596 static const struct { 656 static const struct {
597 const char *name; 657 const char *name;
598 IV iv; 658 IV iv;
599 } *civ, const_iv[] = { 659 } *civ, const_iv[] = {
600# 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 },
601# define const_eio(name) { # name, (IV) EIO_ ## name }, 662# define const_eio(name) { # name, (IV) EIO_ ## name },
602 const_iv (EXDEV , EXDEV) 663 const_iv (EXDEV)
603 const_iv (ENOSYS , ENOSYS) 664 const_iv (ENOSYS)
604 const_iv (O_RDONLY, O_RDONLY) 665 const_iv (O_RDONLY)
605 const_iv (O_WRONLY, O_WRONLY) 666 const_iv (O_WRONLY)
606 const_iv (O_CREAT , O_CREAT) 667 const_iv (O_CREAT)
607 const_iv (O_TRUNC , O_TRUNC) 668 const_iv (O_TRUNC)
608#ifndef _WIN32 669#ifndef _WIN32
609 const_iv (S_IFIFO , S_IFIFO) 670 const_iv (S_IFIFO)
610#endif 671#endif
611 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 672 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
612 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 673 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
613 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 674 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
614 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 675 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
615 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 676 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
616 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 677 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
617 678
618 const_iv (ST_RDONLY , ST_RDONLY) 679 const_iv (ST_RDONLY)
619 const_iv (ST_NOSUID , ST_NOSUID) 680 const_iv (ST_NOSUID)
620 const_iv (ST_NODEV , ST_NODEV) 681 const_iv (ST_NODEV)
621 const_iv (ST_NOEXEC , ST_NOEXEC) 682 const_iv (ST_NOEXEC)
622 const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS) 683 const_iv (ST_SYNCHRONOUS)
623 const_iv (ST_MANDLOCK , ST_MANDLOCK) 684 const_iv (ST_MANDLOCK)
624 const_iv (ST_WRITE , ST_WRITE) 685 const_iv (ST_WRITE)
625 const_iv (ST_APPEND , ST_APPEND) 686 const_iv (ST_APPEND)
626 const_iv (ST_IMMUTABLE , ST_IMMUTABLE) 687 const_iv (ST_IMMUTABLE)
627 const_iv (ST_NOATIME , ST_NOATIME) 688 const_iv (ST_NOATIME)
628 const_iv (ST_NODIRATIME , ST_NODIRATIME) 689 const_iv (ST_NODIRATIME)
629 const_iv (ST_RELATIME , ST_RELATIME) 690 const_iv (ST_RELATIME)
630 691
631 const_iv (MCL_FUTURE , MCL_FUTURE) 692 const_iv (PROT_EXEC)
693 const_iv (PROT_NONE)
694 const_iv (PROT_READ)
695 const_iv (PROT_WRITE)
696
697 /*const_iv (MAP_FIXED)*/
698 const_iv (MAP_PRIVATE)
699 const_iv (MAP_SHARED)
700 const_iv (MAP_ANONYMOUS)
701
702 /* linuxish */
703 const_iv (MAP_HUGETLB)
704 const_iv (MAP_LOCKED)
705 const_iv (MAP_NORESERVE)
706 const_iv (MAP_POPULATE)
707 const_iv (MAP_NONBLOCK)
708
709 const_iv (MCL_FUTURE)
632 const_iv (MCL_CURRENT , MCL_CURRENT) 710 const_iv (MCL_CURRENT)
633 711
634 const_eio (MS_ASYNC) 712 const_eio (MS_ASYNC)
635 const_eio (MS_INVALIDATE) 713 const_eio (MS_INVALIDATE)
636 const_eio (MS_SYNC) 714 const_eio (MS_SYNC)
637 715
… …
661 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); 739 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
662 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 740 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
663 741
664 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 742 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
665 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 743 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
744
745 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
666 746
667 create_respipe (); 747 create_respipe ();
668 748
669 if (eio_init (want_poll, done_poll) < 0) 749 if (eio_init (want_poll, done_poll) < 0)
670 croak ("IO::AIO: unable to initialise eio library"); 750 croak ("IO::AIO: unable to initialise eio library");
… …
1260 PROTOTYPE: $$$$ 1340 PROTOTYPE: $$$$
1261 CODE: 1341 CODE:
1262#if _XOPEN_SOURCE >= 600 && !NO_FADVISE 1342#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263 RETVAL = posix_fadvise (fh, offset, length, advice); 1343 RETVAL = posix_fadvise (fh, offset, length, advice);
1264#else 1344#else
1265 RETVAL = errno = ENOSYS; 1345 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1266#endif 1346#endif
1267 OUTPUT: 1347 OUTPUT:
1268 RETVAL 1348 RETVAL
1269 1349
1270ssize_t 1350ssize_t
… …
1272 PROTOTYPE: $$$$ 1352 PROTOTYPE: $$$$
1273 CODE: 1353 CODE:
1274 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1354 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275 OUTPUT: 1355 OUTPUT:
1276 RETVAL 1356 RETVAL
1357
1358void
1359mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360 PROTOTYPE: $$$$$;$
1361 PPCODE:
1362 sv_unmagic (scalar, MMAP_MAGIC);
1363{
1364 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366 if (addr == (void *)-1)
1367 XSRETURN_NO;
1368
1369 /* we store the length in mg_obj, as namlen is I32 :/ */
1370 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371 ->mg_obj = (SV *)length;
1372
1373 SvUPGRADE (scalar, SVt_PV); /* nop... */
1374 if (!(prot & PROT_WRITE))
1375 SvREADONLY_on (scalar);
1376
1377 SvPVX (scalar) = (char *)addr;
1378 SvCUR_set (scalar, length);
1379 SvLEN_set (scalar, 0);
1380 SvPOK_only (scalar);
1381
1382 XSRETURN_YES;
1383}
1384
1385void
1386munmap (SV *scalar)
1387 PROTOTYPE: $
1388 CODE:
1389 sv_unmagic (scalar, MMAP_MAGIC);
1277 1390
1278int 1391int
1279mlockall (int flags) 1392mlockall (int flags)
1280 PROTOTYPE: $ 1393 PROTOTYPE: $
1281 CODE: 1394 CODE:
… …
1284 extern int mallopt (int, int); 1397 extern int mallopt (int, int);
1285 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ 1398 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1286#endif 1399#endif
1287 mlockall (flags); 1400 mlockall (flags);
1288#else 1401#else
1289 RETVAL ＝-1; 1402 RETVAL = -1;
1290 errno = ENOSYS; 1403 errno = ENOSYS;
1291#endif 1404#endif
1292 OUTPUT: 1405 OUTPUT:
1293 RETVAL 1406 RETVAL
1294 1407
… …
1297 PROTOTYPE: 1410 PROTOTYPE:
1298 CODE: 1411 CODE:
1299#if _POSIX_MEMLOCK 1412#if _POSIX_MEMLOCK
1300 munlockall (); 1413 munlockall ();
1301#else 1414#else
1302 RETVAL ＝-1; 1415 RETVAL = -1;
1303 errno = ENOSYS; 1416 errno = ENOSYS;
1304#endif 1417#endif
1305 OUTPUT: 1418 OUTPUT:
1306 RETVAL 1419 RETVAL
1307 1420

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