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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.160 by root, Thu Jan 7 18:25:51 2010 UTC vs.
Revision 1.168 by root, Wed Aug 4 14:02:58 2010 UTC

… …
15#include <sys/stat.h> 15#include <sys/stat.h>
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
21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
20 24
21/* perl namespace pollution */ 25/* perl namespace pollution */
22#undef VERSION 26#undef VERSION
23 27
24#ifdef _WIN32 28#ifdef _WIN32
… …
120 124
121#ifndef POSIX_FADV_NORMAL 125#ifndef POSIX_FADV_NORMAL
122# define POSIX_FADV_NORMAL 0 126# define POSIX_FADV_NORMAL 0
123# define NO_FADVISE 1 127# define NO_FADVISE 1
124#endif 128#endif
125
126#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
127# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
128#endif 131#endif
129
130#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
131# define POSIX_FADV_RANDOM 0 133# define POSIX_FADV_RANDOM 0
132#endif 134#endif
133
134#ifndef POSIX_FADV_NOREUSE 135#ifndef POSIX_FADV_NOREUSE
135# define POSIX_FADV_NOREUSE 0 136# define POSIX_FADV_NOREUSE 0
136#endif 137#endif
137
138#ifndef POSIX_FADV_WILLNEED 138#ifndef POSIX_FADV_WILLNEED
139# define POSIX_FADV_WILLNEED 0 139# define POSIX_FADV_WILLNEED 0
140#endif 140#endif
141
142#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
143# define POSIX_FADV_DONTNEED 0 142# define POSIX_FADV_DONTNEED 0
144#endif 143#endif
145 144
146#ifndef ST_NODEV 145#ifndef ST_NODEV
147# define ST_NODEV 0 146# define ST_NODEV 0
148#endif 147#endif
149
150#ifndef ST_NOEXEC 148#ifndef ST_NOEXEC
151# define ST_NOEXEC 0 149# define ST_NOEXEC 0
152#endif 150#endif
153
154#ifndef ST_SYNCHRONOUS 151#ifndef ST_SYNCHRONOUS
155# define ST_SYNCHRONOUS 0 152# define ST_SYNCHRONOUS 0
156#endif 153#endif
157
158#ifndef ST_MANDLOCK 154#ifndef ST_MANDLOCK
159# define ST_MANDLOCK 0 155# define ST_MANDLOCK 0
160#endif 156#endif
161
162#ifndef ST_WRITE 157#ifndef ST_WRITE
163# define ST_WRITE 0 158# define ST_WRITE 0
164#endif 159#endif
165
166#ifndef ST_APPEND 160#ifndef ST_APPEND
167# define ST_APPEND 0 161# define ST_APPEND 0
168#endif 162#endif
169
170#ifndef ST_IMMUTABLE 163#ifndef ST_IMMUTABLE
171# define ST_IMMUTABLE 0 164# define ST_IMMUTABLE 0
172#endif 165#endif
173
174#ifndef ST_NOATIME 166#ifndef ST_NOATIME
175# define ST_NOATIME 0 167# define ST_NOATIME 0
176#endif 168#endif
177
178#ifndef ST_NODIRATIME 169#ifndef ST_NODIRATIME
179# define ST_NODIRATIME 0 170# define ST_NODIRATIME 0
180#endif 171#endif
181
182#ifndef ST_RELATIME 172#ifndef ST_RELATIME
183# define ST_RELATIME 0 173# 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)
184#endif 208#endif
185 209
186static int req_invoke (eio_req *req); 210static int req_invoke (eio_req *req);
187#define EIO_FINISH(req) req_invoke (req) 211#define EIO_FINISH(req) req_invoke (req)
188static void req_destroy (eio_req *grp); 212static void req_destroy (eio_req *grp);
… …
280 } 304 }
281} 305}
282 306
283static int req_invoke (eio_req *req) 307static int req_invoke (eio_req *req)
284{ 308{
285 dSP;
286
287 if (req->flags & FLAG_SV2_RO_OFF) 309 if (req->flags & FLAG_SV2_RO_OFF)
288 SvREADONLY_off (req->sv2); 310 SvREADONLY_off (req->sv2);
289 311
290 if (!EIO_CANCELLED (req) && req->callback) 312 if (!EIO_CANCELLED (req) && req->callback)
291 { 313 {
314 dSP;
315 static SV *sv_result_cache; /* caches the result integer SV */
316 SV *sv_result;
317
292 ENTER; 318 ENTER;
293 SAVETMPS; 319 SAVETMPS;
294 PUSHMARK (SP); 320 PUSHMARK (SP);
295 EXTEND (SP, 1); 321 EXTEND (SP, 1);
322
323 /* do not recreate the result IV from scratch each time */
324 if (expect_true (sv_result_cache))
325 {
326 sv_result = sv_result_cache; sv_result_cache = 0;
327 SvIV_set (sv_result, req->result);
328 }
329 else
330 {
331 sv_result = newSViv (req->result);
332 SvREADONLY_on (sv_result);
333 }
296 334
297 switch (req->type) 335 switch (req->type)
298 { 336 {
299 case EIO_READDIR: 337 case EIO_READDIR:
300 { 338 {
… …
445 case EIO_LSTAT: 483 case EIO_LSTAT:
446 case EIO_FSTAT: 484 case EIO_FSTAT:
447 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 485 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
448 PL_laststatval = req->result; 486 PL_laststatval = req->result;
449 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 487 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
450 PUSHs (sv_2mortal (newSViv (req->result))); 488 PUSHs (sv_result);
451 break; 489 break;
452 490
453 case EIO_READ: 491 case EIO_READ:
454 { 492 {
455 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 493 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
456 *SvEND (req->sv2) = 0; 494 *SvEND (req->sv2) = 0;
457 SvPOK_only (req->sv2); 495 SvPOK_only (req->sv2);
458 SvSETMAGIC (req->sv2); 496 SvSETMAGIC (req->sv2);
459 PUSHs (sv_2mortal (newSViv (req->result))); 497 PUSHs (sv_result);
460 } 498 }
461 break; 499 break;
462 500
463 case EIO_DUP2: 501 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
464 if (req->result > 0) 502 if (req->result > 0)
465 req->result = 0; 503 SvIV_set (sv_result, 0);
466 /* FALLTHROUGH */ 504 /* FALLTHROUGH */
467 505
468 default: 506 default:
469 PUSHs (sv_2mortal (newSViv (req->result))); 507 PUSHs (sv_result);
470 break; 508 break;
471 } 509 }
472 510
473 errno = req->errorno; 511 errno = req->errorno;
474 512
475 PUTBACK; 513 PUTBACK;
476 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 514 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
477 SPAGAIN; 515 SPAGAIN;
516
517 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
518 SvREFCNT_dec (sv_result);
519 else
520 sv_result_cache = sv_result;
478 521
479 FREETMPS; 522 FREETMPS;
480 LEAVE; 523 LEAVE;
481 524
482 PUTBACK; 525 PUTBACK;
… …
557 600
558static void atfork_child (void) 601static void atfork_child (void)
559{ 602{
560 create_respipe (); 603 create_respipe ();
561} 604}
605
606/*****************************************************************************/
607
608#if !_POSIX_MAPPED_FILES
609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610# define munmap(addr,length) (errno = ENOSYS, -1)
611#endif
612
613#define MMAP_MAGIC PERL_MAGIC_ext
614
615static int
616mmap_free (pTHX_ SV *sv, MAGIC *mg)
617{
618 int old_errno = errno;
619 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620 errno = old_errno;
621
622 mg->mg_obj = 0; /* just in case */
623
624 SvREADONLY_off (sv);
625
626 if (SvPVX (sv) != mg->mg_ptr)
627 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
628
629 SvCUR_set (sv, 0);
630 SvPVX (sv) = 0;
631 SvOK_off (sv);
632
633 return 0;
634}
635
636static MGVTBL mmap_vtbl = {
637 0, 0, 0, 0, mmap_free
638};
639
640/*****************************************************************************/
562 641
563static SV * 642static SV *
564get_cb (SV *cb_sv) 643get_cb (SV *cb_sv)
565{ 644{
566 SvGETMAGIC (cb_sv); 645 SvGETMAGIC (cb_sv);
… …
598{ 677{
599 static const struct { 678 static const struct {
600 const char *name; 679 const char *name;
601 IV iv; 680 IV iv;
602 } *civ, const_iv[] = { 681 } *civ, const_iv[] = {
603# define const_iv(name, value) { # name, (IV) value }, 682# define const_niv(name, value) { # name, (IV) value },
683# define const_iv(name) { # name, (IV) name },
604# define const_eio(name) { # name, (IV) EIO_ ## name }, 684# define const_eio(name) { # name, (IV) EIO_ ## name },
605 const_iv (EXDEV , EXDEV) 685 const_iv (EXDEV)
606 const_iv (ENOSYS , ENOSYS) 686 const_iv (ENOSYS)
607 const_iv (O_RDONLY, O_RDONLY) 687 const_iv (O_RDONLY)
608 const_iv (O_WRONLY, O_WRONLY) 688 const_iv (O_WRONLY)
689 const_iv (O_RDWR)
609 const_iv (O_CREAT , O_CREAT) 690 const_iv (O_CREAT)
610 const_iv (O_TRUNC , O_TRUNC) 691 const_iv (O_TRUNC)
692 const_iv (O_EXCL)
693 const_iv (O_APPEND)
611#ifndef _WIN32 694#ifndef _WIN32
612 const_iv (S_IFIFO , S_IFIFO) 695 const_iv (S_IFIFO)
613#endif 696#endif
614 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 697 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
615 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 698 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
616 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 699 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
617 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 700 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
618 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 701 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
619 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 702 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
620 703
621 const_iv (ST_RDONLY , ST_RDONLY) 704 const_iv (ST_RDONLY)
622 const_iv (ST_NOSUID , ST_NOSUID) 705 const_iv (ST_NOSUID)
623 const_iv (ST_NODEV , ST_NODEV) 706 const_iv (ST_NODEV)
624 const_iv (ST_NOEXEC , ST_NOEXEC) 707 const_iv (ST_NOEXEC)
625 const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS) 708 const_iv (ST_SYNCHRONOUS)
626 const_iv (ST_MANDLOCK , ST_MANDLOCK) 709 const_iv (ST_MANDLOCK)
627 const_iv (ST_WRITE , ST_WRITE) 710 const_iv (ST_WRITE)
628 const_iv (ST_APPEND , ST_APPEND) 711 const_iv (ST_APPEND)
629 const_iv (ST_IMMUTABLE , ST_IMMUTABLE) 712 const_iv (ST_IMMUTABLE)
630 const_iv (ST_NOATIME , ST_NOATIME) 713 const_iv (ST_NOATIME)
631 const_iv (ST_NODIRATIME , ST_NODIRATIME) 714 const_iv (ST_NODIRATIME)
632 const_iv (ST_RELATIME , ST_RELATIME) 715 const_iv (ST_RELATIME)
716
717 const_iv (PROT_EXEC)
718 const_iv (PROT_NONE)
719 const_iv (PROT_READ)
720 const_iv (PROT_WRITE)
721
722 /*const_iv (MAP_FIXED)*/
723 const_iv (MAP_PRIVATE)
724 const_iv (MAP_SHARED)
725 const_iv (MAP_ANONYMOUS)
726
727 /* linuxish */
728 const_iv (MAP_HUGETLB)
729 const_iv (MAP_LOCKED)
730 const_iv (MAP_NORESERVE)
731 const_iv (MAP_POPULATE)
732 const_iv (MAP_NONBLOCK)
733
734 const_iv (MCL_FUTURE)
735 const_iv (MCL_CURRENT)
633 736
634 const_eio (MS_ASYNC) 737 const_eio (MS_ASYNC)
635 const_eio (MS_INVALIDATE) 738 const_eio (MS_INVALIDATE)
636 const_eio (MS_SYNC) 739 const_eio (MS_SYNC)
637 740
… …
661 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); 764 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
662 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 765 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
663 766
664 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 767 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
665 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 768 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
769
770 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
666 771
667 create_respipe (); 772 create_respipe ();
668 773
669 if (eio_init (want_poll, done_poll) < 0) 774 if (eio_init (want_poll, done_poll) < 0)
670 croak ("IO::AIO: unable to initialise eio library"); 775 croak ("IO::AIO: unable to initialise eio library");
… …
1260 PROTOTYPE: $$$$ 1365 PROTOTYPE: $$$$
1261 CODE: 1366 CODE:
1262#if _XOPEN_SOURCE >= 600 && !NO_FADVISE 1367#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263 RETVAL = posix_fadvise (fh, offset, length, advice); 1368 RETVAL = posix_fadvise (fh, offset, length, advice);
1264#else 1369#else
1265 RETVAL = errno = ENOSYS; 1370 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1266#endif 1371#endif
1267 OUTPUT: 1372 OUTPUT:
1268 RETVAL 1373 RETVAL
1269 1374
1270ssize_t 1375ssize_t
… …
1273 CODE: 1378 CODE:
1274 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1379 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275 OUTPUT: 1380 OUTPUT:
1276 RETVAL 1381 RETVAL
1277 1382
1383void
1384mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1385 PROTOTYPE: $$$$$;$
1386 PPCODE:
1387 sv_unmagic (scalar, MMAP_MAGIC);
1388{
1389 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1390 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1391 if (addr == (void *)-1)
1392 XSRETURN_NO;
1393
1394 sv_force_normal (scalar);
1395
1396 /* we store the length in mg_obj, as namlen is I32 :/ */
1397 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1398 ->mg_obj = (SV *)length;
1399
1400 SvUPGRADE (scalar, SVt_PV); /* nop... */
1401
1402 if (!(prot & PROT_WRITE))
1403 SvREADONLY_on (scalar);
1404
1405 if (SvLEN (scalar))
1406 Safefree (SvPVX (scalar));
1407
1408 SvPVX (scalar) = (char *)addr;
1409 SvCUR_set (scalar, length);
1410 SvLEN_set (scalar, 0);
1411 SvPOK_only (scalar);
1412
1413 XSRETURN_YES;
1414}
1415
1416void
1417munmap (SV *scalar)
1418 PROTOTYPE: $
1419 CODE:
1420 sv_unmagic (scalar, MMAP_MAGIC);
1421
1422int
1423mlockall (int flags)
1424 PROTOTYPE: $
1425 CODE:
1426#if _POSIX_MEMLOCK
1427#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1428 extern int mallopt (int, int);
1429 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1430#endif
1431 mlockall (flags);
1432#else
1433 RETVAL = -1;
1434 errno = ENOSYS;
1435#endif
1436 OUTPUT:
1437 RETVAL
1438
1439int
1440munlockall ()
1441 PROTOTYPE:
1442 CODE:
1443#if _POSIX_MEMLOCK
1444 munlockall ();
1445#else
1446 RETVAL = -1;
1447 errno = ENOSYS;
1448#endif
1449 OUTPUT:
1450 RETVAL
1451
1278void _on_next_submit (SV *cb) 1452void _on_next_submit (SV *cb)
1279 CODE: 1453 CODE:
1280 SvREFCNT_dec (on_next_submit); 1454 SvREFCNT_dec (on_next_submit);
1281 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1455 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1282 1456

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