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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 1.165 by root, Sun May 9 20:42:55 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);
… …
246 if (req->flags & FLAG_SV2_RO_OFF) 311 if (req->flags & FLAG_SV2_RO_OFF)
247 SvREADONLY_off (req->sv2); 312 SvREADONLY_off (req->sv2);
248 313
249 if (!EIO_CANCELLED (req) && req->callback) 314 if (!EIO_CANCELLED (req) && req->callback)
250 { 315 {
316 static SV *sv_result_cache; /* caches the result integer SV */
317 SV *sv_result;
318
251 ENTER; 319 ENTER;
252 SAVETMPS; 320 SAVETMPS;
253 PUSHMARK (SP); 321 PUSHMARK (SP);
254 EXTEND (SP, 1); 322 EXTEND (SP, 1);
323
324 /* do not recreate the result IV from scratch each time */
325 if (expect_true (sv_result_cache))
326 {
327 sv_result = sv_result_cache; sv_result_cache = 0;
328 SvIV_set (sv_result, req->result);
329 }
330 else
331 {
332 sv_result = newSViv (req->result);
333 SvREADONLY_on (sv_result);
334 }
255 335
256 switch (req->type) 336 switch (req->type)
257 { 337 {
258 case EIO_READDIR: 338 case EIO_READDIR:
259 { 339 {
… …
345 425
346 PUSHs (fh); 426 PUSHs (fh);
347 } 427 }
348 break; 428 break;
349 429
430 case EIO_STATVFS:
431 case EIO_FSTATVFS:
432 {
433 SV *rv = &PL_sv_undef;
434
435 if (req->result >= 0)
436 {
437 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
438 HV *hv = newHV ();
439
440 rv = sv_2mortal (newRV_noinc ((SV *)hv));
441
442 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
443 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
444 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
445 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
446 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
447 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
448 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
449 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
450 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
451 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
452 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
453 }
454
455 PUSHs (rv);
456 }
457
458 break;
459
350 case EIO_GROUP: 460 case EIO_GROUP:
351 req->int1 = 2; /* mark group as finished */ 461 req->int1 = 2; /* mark group as finished */
352 462
353 if (req->sv1) 463 if (req->sv1)
354 { 464 {
… …
374 case EIO_LSTAT: 484 case EIO_LSTAT:
375 case EIO_FSTAT: 485 case EIO_FSTAT:
376 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 486 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
377 PL_laststatval = req->result; 487 PL_laststatval = req->result;
378 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 488 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379 PUSHs (sv_2mortal (newSViv (req->result))); 489 PUSHs (sv_result);
380 break; 490 break;
381 491
382 case EIO_READ: 492 case EIO_READ:
383 { 493 {
384 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 494 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385 *SvEND (req->sv2) = 0; 495 *SvEND (req->sv2) = 0;
386 SvPOK_only (req->sv2); 496 SvPOK_only (req->sv2);
387 SvSETMAGIC (req->sv2); 497 SvSETMAGIC (req->sv2);
388 PUSHs (sv_2mortal (newSViv (req->result))); 498 PUSHs (sv_result);
389 } 499 }
390 break; 500 break;
391 501
392 case EIO_DUP2: 502 case EIO_DUP2:
393 if (req->result > 0) 503 if (req->result > 0)
394 req->result = 0; 504 SvIV_set (sv_result, 0);
395 /* FALLTHROUGH */ 505 /* FALLTHROUGH */
396 506
397 default: 507 default:
398 PUSHs (sv_2mortal (newSViv (req->result))); 508 PUSHs (sv_result);
399 break; 509 break;
400 } 510 }
401 511
402 errno = req->errorno; 512 errno = req->errorno;
403 513
404 PUTBACK; 514 PUTBACK;
405 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 515 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406 SPAGAIN; 516 SPAGAIN;
517
518 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
519 SvREFCNT_dec (sv_result);
520 else
521 sv_result_cache = sv_result;
407 522
408 FREETMPS; 523 FREETMPS;
409 LEAVE; 524 LEAVE;
410 525
411 PUTBACK; 526 PUTBACK;
… …
486 601
487static void atfork_child (void) 602static void atfork_child (void)
488{ 603{
489 create_respipe (); 604 create_respipe ();
490} 605}
606
607/*****************************************************************************/
608
609#if !_POSIX_MAPPED_FILES
610# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
611# define munmap(addr,length) (errno = ENOSYS, -1)
612#endif
613
614#define MMAP_MAGIC PERL_MAGIC_ext
615
616static int
617mmap_free (pTHX_ SV *sv, MAGIC *mg)
618{
619 int old_errno = errno;
620 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
621 errno = old_errno;
622
623 mg->mg_obj = 0; /* just in case */
624
625 SvREADONLY_off (sv);
626 SvCUR_set (sv, 0);
627 SvLEN_set (sv, 0);
628 SvPVX (sv) = 0;
629 SvOK_off (sv);
630
631 return 0;
632}
633
634static MGVTBL mmap_vtbl = {
635 0, 0, 0, 0, mmap_free
636};
637
638/*****************************************************************************/
491 639
492static SV * 640static SV *
493get_cb (SV *cb_sv) 641get_cb (SV *cb_sv)
494{ 642{
495 SvGETMAGIC (cb_sv); 643 SvGETMAGIC (cb_sv);
… …
527{ 675{
528 static const struct { 676 static const struct {
529 const char *name; 677 const char *name;
530 IV iv; 678 IV iv;
531 } *civ, const_iv[] = { 679 } *civ, const_iv[] = {
532# define const_iv(name, value) { # name, (IV) value }, 680# define const_niv(name, value) { # name, (IV) value },
681# define const_iv(name) { # name, (IV) name },
533# define const_eio(name) { # name, (IV) EIO_ ## name }, 682# define const_eio(name) { # name, (IV) EIO_ ## name },
534 const_iv (EXDEV , EXDEV) 683 const_iv (EXDEV)
535 const_iv (ENOSYS , ENOSYS) 684 const_iv (ENOSYS)
536 const_iv (O_RDONLY, O_RDONLY) 685 const_iv (O_RDONLY)
537 const_iv (O_WRONLY, O_WRONLY) 686 const_iv (O_WRONLY)
687 const_iv (O_RDWR)
538 const_iv (O_CREAT , O_CREAT) 688 const_iv (O_CREAT)
539 const_iv (O_TRUNC , O_TRUNC) 689 const_iv (O_TRUNC)
690 const_iv (O_EXCL)
691 const_iv (O_APPEND)
540#ifndef _WIN32 692#ifndef _WIN32
541 const_iv (S_IFIFO , S_IFIFO) 693 const_iv (S_IFIFO)
542#endif 694#endif
543 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 695 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 696 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 697 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 698 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 699 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 700 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
701
702 const_iv (ST_RDONLY)
703 const_iv (ST_NOSUID)
704 const_iv (ST_NODEV)
705 const_iv (ST_NOEXEC)
706 const_iv (ST_SYNCHRONOUS)
707 const_iv (ST_MANDLOCK)
708 const_iv (ST_WRITE)
709 const_iv (ST_APPEND)
710 const_iv (ST_IMMUTABLE)
711 const_iv (ST_NOATIME)
712 const_iv (ST_NODIRATIME)
713 const_iv (ST_RELATIME)
714
715 const_iv (PROT_EXEC)
716 const_iv (PROT_NONE)
717 const_iv (PROT_READ)
718 const_iv (PROT_WRITE)
719
720 /*const_iv (MAP_FIXED)*/
721 const_iv (MAP_PRIVATE)
722 const_iv (MAP_SHARED)
723 const_iv (MAP_ANONYMOUS)
724
725 /* linuxish */
726 const_iv (MAP_HUGETLB)
727 const_iv (MAP_LOCKED)
728 const_iv (MAP_NORESERVE)
729 const_iv (MAP_POPULATE)
730 const_iv (MAP_NONBLOCK)
731
732 const_iv (MCL_FUTURE)
733 const_iv (MCL_CURRENT)
734
735 const_eio (MS_ASYNC)
736 const_eio (MS_INVALIDATE)
737 const_eio (MS_SYNC)
738
739 const_eio (MT_MODIFY)
549 740
550 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 741 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551 const_eio (SYNC_FILE_RANGE_WRITE) 742 const_eio (SYNC_FILE_RANGE_WRITE)
552 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 743 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
553 744
… …
571 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); 762 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); 763 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
573 764
574 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 765 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
575 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); 766 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
767
768 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
576 769
577 create_respipe (); 770 create_respipe ();
578 771
579 if (eio_init (want_poll, done_poll) < 0) 772 if (eio_init (want_poll, done_poll) < 0)
580 croak ("IO::AIO: unable to initialise eio library"); 773 croak ("IO::AIO: unable to initialise eio library");
… …
807} 1000}
808 1001
809void 1002void
810aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1003aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
811 ALIAS: 1004 ALIAS:
812 aio_stat = EIO_STAT 1005 aio_stat = EIO_STAT
813 aio_lstat = EIO_LSTAT 1006 aio_lstat = EIO_LSTAT
1007 aio_statvfs = EIO_STATVFS
814 PPCODE: 1008 PPCODE:
815{ 1009{
816 dREQ; 1010 dREQ;
817 1011
818 req->sv1 = newSVsv (fh_or_path); 1012 req->sv1 = newSVsv (fh_or_path);
… …
822 req->type = ix; 1016 req->type = ix;
823 req->ptr1 = SvPVbyte_nolen (req->sv1); 1017 req->ptr1 = SvPVbyte_nolen (req->sv1);
824 } 1018 }
825 else 1019 else
826 { 1020 {
827 req->type = EIO_FSTAT; 1021 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
828 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1022 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829 } 1023 }
830 1024
831 REQ_SEND; 1025 REQ_SEND;
832} 1026}
… …
995 1189
996 REQ_SEND; 1190 REQ_SEND;
997} 1191}
998 1192
999void 1193void
1194aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1195 ALIAS:
1196 aio_mtouch = EIO_MTOUCH
1197 aio_msync = EIO_MSYNC
1198 PROTOTYPE: $$$$;$
1199 PPCODE:
1200{
1201 STRLEN svlen;
1202 UV len = SvUV (length);
1203 char *svptr = SvPVbyte (data, svlen);
1204
1205 if (offset < 0)
1206 offset += svlen;
1207
1208 if (offset < 0 || offset > svlen)
1209 croak ("offset outside of scalar");
1210
1211 if (!SvOK (length) || len + offset > svlen)
1212 len = svlen - offset;
1213
1214 {
1215 dREQ;
1216
1217 req->type = ix;
1218 req->size = len;
1219 req->sv2 = SvREFCNT_inc (data);
1220 req->ptr2 = (char *)svptr + offset;
1221 req->int1 = flags;
1222
1223 REQ_SEND;
1224 }
1225}
1226
1227void
1000aio_busy (double delay, SV *callback=&PL_sv_undef) 1228aio_busy (double delay, SV *callback=&PL_sv_undef)
1001 PPCODE: 1229 PPCODE:
1002{ 1230{
1003 dREQ; 1231 dREQ;
1004 1232
… …
1135 PROTOTYPE: $$$$ 1363 PROTOTYPE: $$$$
1136 CODE: 1364 CODE:
1137#if _XOPEN_SOURCE >= 600 && !NO_FADVISE 1365#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138 RETVAL = posix_fadvise (fh, offset, length, advice); 1366 RETVAL = posix_fadvise (fh, offset, length, advice);
1139#else 1367#else
1140 RETVAL = errno = ENOSYS; 1368 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1141#endif 1369#endif
1142 OUTPUT: 1370 OUTPUT:
1143 RETVAL 1371 RETVAL
1144 1372
1145ssize_t 1373ssize_t
… …
1148 CODE: 1376 CODE:
1149 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1377 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1150 OUTPUT: 1378 OUTPUT:
1151 RETVAL 1379 RETVAL
1152 1380
1381void
1382mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1383 PROTOTYPE: $$$$$;$
1384 PPCODE:
1385 sv_unmagic (scalar, MMAP_MAGIC);
1386{
1387 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1388 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389 if (addr == (void *)-1)
1390 XSRETURN_NO;
1391
1392 /* we store the length in mg_obj, as namlen is I32 :/ */
1393 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394 ->mg_obj = (SV *)length;
1395
1396 SvUPGRADE (scalar, SVt_PV); /* nop... */
1397 if (!(prot & PROT_WRITE))
1398 SvREADONLY_on (scalar);
1399
1400 SvPVX (scalar) = (char *)addr;
1401 SvCUR_set (scalar, length);
1402 SvLEN_set (scalar, 0);
1403 SvPOK_only (scalar);
1404
1405 XSRETURN_YES;
1406}
1407
1408void
1409munmap (SV *scalar)
1410 PROTOTYPE: $
1411 CODE:
1412 sv_unmagic (scalar, MMAP_MAGIC);
1413
1414int
1415mlockall (int flags)
1416 PROTOTYPE: $
1417 CODE:
1418#if _POSIX_MEMLOCK
1419#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1420 extern int mallopt (int, int);
1421 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1422#endif
1423 mlockall (flags);
1424#else
1425 RETVAL = -1;
1426 errno = ENOSYS;
1427#endif
1428 OUTPUT:
1429 RETVAL
1430
1431int
1432munlockall ()
1433 PROTOTYPE:
1434 CODE:
1435#if _POSIX_MEMLOCK
1436 munlockall ();
1437#else
1438 RETVAL = -1;
1439 errno = ENOSYS;
1440#endif
1441 OUTPUT:
1442 RETVAL
1443
1153void _on_next_submit (SV *cb) 1444void _on_next_submit (SV *cb)
1154 CODE: 1445 CODE:
1155 SvREFCNT_dec (on_next_submit); 1446 SvREFCNT_dec (on_next_submit);
1156 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1447 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1157 1448

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