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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.158 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.166 by root, Sun May 9 20:43:28 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);
… …
239 } 304 }
240} 305}
241 306
242static int req_invoke (eio_req *req) 307static int req_invoke (eio_req *req)
243{ 308{
244 dSP;
245
246 if (req->flags & FLAG_SV2_RO_OFF) 309 if (req->flags & FLAG_SV2_RO_OFF)
247 SvREADONLY_off (req->sv2); 310 SvREADONLY_off (req->sv2);
248 311
249 if (!EIO_CANCELLED (req) && req->callback) 312 if (!EIO_CANCELLED (req) && req->callback)
250 { 313 {
314 dSP;
315 static SV *sv_result_cache; /* caches the result integer SV */
316 SV *sv_result;
317
251 ENTER; 318 ENTER;
252 SAVETMPS; 319 SAVETMPS;
253 PUSHMARK (SP); 320 PUSHMARK (SP);
254 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 }
255 334
256 switch (req->type) 335 switch (req->type)
257 { 336 {
258 case EIO_READDIR: 337 case EIO_READDIR:
259 { 338 {
… …
345 424
346 PUSHs (fh); 425 PUSHs (fh);
347 } 426 }
348 break; 427 break;
349 428
429 case EIO_STATVFS:
430 case EIO_FSTATVFS:
431 {
432 SV *rv = &PL_sv_undef;
433
434 if (req->result >= 0)
435 {
436 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437 HV *hv = newHV ();
438
439 rv = sv_2mortal (newRV_noinc ((SV *)hv));
440
441 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
442 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
443 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
444 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
445 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
446 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
447 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
448 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
450 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452 }
453
454 PUSHs (rv);
455 }
456
457 break;
458
350 case EIO_GROUP: 459 case EIO_GROUP:
351 req->int1 = 2; /* mark group as finished */ 460 req->int1 = 2; /* mark group as finished */
352 461
353 if (req->sv1) 462 if (req->sv1)
354 { 463 {
… …
374 case EIO_LSTAT: 483 case EIO_LSTAT:
375 case EIO_FSTAT: 484 case EIO_FSTAT:
376 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 485 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
377 PL_laststatval = req->result; 486 PL_laststatval = req->result;
378 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 487 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379 PUSHs (sv_2mortal (newSViv (req->result))); 488 PUSHs (sv_result);
380 break; 489 break;
381 490
382 case EIO_READ: 491 case EIO_READ:
383 { 492 {
384 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));
385 *SvEND (req->sv2) = 0; 494 *SvEND (req->sv2) = 0;
386 SvPOK_only (req->sv2); 495 SvPOK_only (req->sv2);
387 SvSETMAGIC (req->sv2); 496 SvSETMAGIC (req->sv2);
388 PUSHs (sv_2mortal (newSViv (req->result))); 497 PUSHs (sv_result);
389 } 498 }
390 break; 499 break;
391 500
392 case EIO_DUP2: 501 case EIO_DUP2:
393 if (req->result > 0) 502 if (req->result > 0)
394 req->result = 0; 503 SvIV_set (sv_result, 0);
395 /* FALLTHROUGH */ 504 /* FALLTHROUGH */
396 505
397 default: 506 default:
398 PUSHs (sv_2mortal (newSViv (req->result))); 507 PUSHs (sv_result);
399 break; 508 break;
400 } 509 }
401 510
402 errno = req->errorno; 511 errno = req->errorno;
403 512
404 PUTBACK; 513 PUTBACK;
405 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 514 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406 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;
407 521
408 FREETMPS; 522 FREETMPS;
409 LEAVE; 523 LEAVE;
410 524
411 PUTBACK; 525 PUTBACK;
… …
486 600
487static void atfork_child (void) 601static void atfork_child (void)
488{ 602{
489 create_respipe (); 603 create_respipe ();
490} 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 SvCUR_set (sv, 0);
626 SvLEN_set (sv, 0);
627 SvPVX (sv) = 0;
628 SvOK_off (sv);
629
630 return 0;
631}
632
633static MGVTBL mmap_vtbl = {
634 0, 0, 0, 0, mmap_free
635};
636
637/*****************************************************************************/
491 638
492static SV * 639static SV *
493get_cb (SV *cb_sv) 640get_cb (SV *cb_sv)
494{ 641{
495 SvGETMAGIC (cb_sv); 642 SvGETMAGIC (cb_sv);
… …
527{ 674{
528 static const struct { 675 static const struct {
529 const char *name; 676 const char *name;
530 IV iv; 677 IV iv;
531 } *civ, const_iv[] = { 678 } *civ, const_iv[] = {
532# define const_iv(name, value) { # name, (IV) value }, 679# define const_niv(name, value) { # name, (IV) value },
680# define const_iv(name) { # name, (IV) name },
533# define const_eio(name) { # name, (IV) EIO_ ## name }, 681# define const_eio(name) { # name, (IV) EIO_ ## name },
534 const_iv (EXDEV , EXDEV) 682 const_iv (EXDEV)
535 const_iv (ENOSYS , ENOSYS) 683 const_iv (ENOSYS)
536 const_iv (O_RDONLY, O_RDONLY) 684 const_iv (O_RDONLY)
537 const_iv (O_WRONLY, O_WRONLY) 685 const_iv (O_WRONLY)
686 const_iv (O_RDWR)
538 const_iv (O_CREAT , O_CREAT) 687 const_iv (O_CREAT)
539 const_iv (O_TRUNC , O_TRUNC) 688 const_iv (O_TRUNC)
689 const_iv (O_EXCL)
690 const_iv (O_APPEND)
540#ifndef _WIN32 691#ifndef _WIN32
541 const_iv (S_IFIFO , S_IFIFO) 692 const_iv (S_IFIFO)
542#endif 693#endif
543 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 694 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 695 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 696 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 697 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 698 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 699 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
700
701 const_iv (ST_RDONLY)
702 const_iv (ST_NOSUID)
703 const_iv (ST_NODEV)
704 const_iv (ST_NOEXEC)
705 const_iv (ST_SYNCHRONOUS)
706 const_iv (ST_MANDLOCK)
707 const_iv (ST_WRITE)
708 const_iv (ST_APPEND)
709 const_iv (ST_IMMUTABLE)
710 const_iv (ST_NOATIME)
711 const_iv (ST_NODIRATIME)
712 const_iv (ST_RELATIME)
713
714 const_iv (PROT_EXEC)
715 const_iv (PROT_NONE)
716 const_iv (PROT_READ)
717 const_iv (PROT_WRITE)
718
719 /*const_iv (MAP_FIXED)*/
720 const_iv (MAP_PRIVATE)
721 const_iv (MAP_SHARED)
722 const_iv (MAP_ANONYMOUS)
723
724 /* linuxish */
725 const_iv (MAP_HUGETLB)
726 const_iv (MAP_LOCKED)
727 const_iv (MAP_NORESERVE)
728 const_iv (MAP_POPULATE)
729 const_iv (MAP_NONBLOCK)
730
731 const_iv (MCL_FUTURE)
732 const_iv (MCL_CURRENT)
549 733
550 const_eio (MS_ASYNC) 734 const_eio (MS_ASYNC)
551 const_eio (MS_INVALIDATE) 735 const_eio (MS_INVALIDATE)
552 const_eio (MS_SYNC) 736 const_eio (MS_SYNC)
553 737
… …
577 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); 761 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 762 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
579 763
580 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 764 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
581 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 765 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
766
767 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
582 768
583 create_respipe (); 769 create_respipe ();
584 770
585 if (eio_init (want_poll, done_poll) < 0) 771 if (eio_init (want_poll, done_poll) < 0)
586 croak ("IO::AIO: unable to initialise eio library"); 772 croak ("IO::AIO: unable to initialise eio library");
… …
813} 999}
814 1000
815void 1001void
816aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1002aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
817 ALIAS: 1003 ALIAS:
818 aio_stat = EIO_STAT 1004 aio_stat = EIO_STAT
819 aio_lstat = EIO_LSTAT 1005 aio_lstat = EIO_LSTAT
1006 aio_statvfs = EIO_STATVFS
820 PPCODE: 1007 PPCODE:
821{ 1008{
822 dREQ; 1009 dREQ;
823 1010
824 req->sv1 = newSVsv (fh_or_path); 1011 req->sv1 = newSVsv (fh_or_path);
… …
828 req->type = ix; 1015 req->type = ix;
829 req->ptr1 = SvPVbyte_nolen (req->sv1); 1016 req->ptr1 = SvPVbyte_nolen (req->sv1);
830 } 1017 }
831 else 1018 else
832 { 1019 {
833 req->type = EIO_FSTAT; 1020 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
834 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1021 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
835 } 1022 }
836 1023
837 REQ_SEND; 1024 REQ_SEND;
838} 1025}
… …
1175 PROTOTYPE: $$$$ 1362 PROTOTYPE: $$$$
1176 CODE: 1363 CODE:
1177#if _XOPEN_SOURCE >= 600 && !NO_FADVISE 1364#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178 RETVAL = posix_fadvise (fh, offset, length, advice); 1365 RETVAL = posix_fadvise (fh, offset, length, advice);
1179#else 1366#else
1180 RETVAL = errno = ENOSYS; 1367 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1181#endif 1368#endif
1182 OUTPUT: 1369 OUTPUT:
1183 RETVAL 1370 RETVAL
1184 1371
1185ssize_t 1372ssize_t
… …
1188 CODE: 1375 CODE:
1189 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1376 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190 OUTPUT: 1377 OUTPUT:
1191 RETVAL 1378 RETVAL
1192 1379
1380void
1381mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382 PROTOTYPE: $$$$$;$
1383 PPCODE:
1384 sv_unmagic (scalar, MMAP_MAGIC);
1385{
1386 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388 if (addr == (void *)-1)
1389 XSRETURN_NO;
1390
1391 /* we store the length in mg_obj, as namlen is I32 :/ */
1392 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393 ->mg_obj = (SV *)length;
1394
1395 SvUPGRADE (scalar, SVt_PV); /* nop... */
1396 if (!(prot & PROT_WRITE))
1397 SvREADONLY_on (scalar);
1398
1399 SvPVX (scalar) = (char *)addr;
1400 SvCUR_set (scalar, length);
1401 SvLEN_set (scalar, 0);
1402 SvPOK_only (scalar);
1403
1404 XSRETURN_YES;
1405}
1406
1407void
1408munmap (SV *scalar)
1409 PROTOTYPE: $
1410 CODE:
1411 sv_unmagic (scalar, MMAP_MAGIC);
1412
1413int
1414mlockall (int flags)
1415 PROTOTYPE: $
1416 CODE:
1417#if _POSIX_MEMLOCK
1418#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1419 extern int mallopt (int, int);
1420 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1421#endif
1422 mlockall (flags);
1423#else
1424 RETVAL = -1;
1425 errno = ENOSYS;
1426#endif
1427 OUTPUT:
1428 RETVAL
1429
1430int
1431munlockall ()
1432 PROTOTYPE:
1433 CODE:
1434#if _POSIX_MEMLOCK
1435 munlockall ();
1436#else
1437 RETVAL = -1;
1438 errno = ENOSYS;
1439#endif
1440 OUTPUT:
1441 RETVAL
1442
1193void _on_next_submit (SV *cb) 1443void _on_next_submit (SV *cb)
1194 CODE: 1444 CODE:
1195 SvREFCNT_dec (on_next_submit); 1445 SvREFCNT_dec (on_next_submit);
1196 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1446 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197 1447

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