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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 2010 UTC vs.
Revision 1.173 by root, Mon Sep 13 01:59:05 2010 UTC

… …
140#endif 140#endif
141#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 142# define POSIX_FADV_DONTNEED 0
143#endif 143#endif
144 144
145#if _XOPEN_SOURCE < 600 || NO_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151# define NO_MADVISE 1
152#endif
153#ifndef POSIX_MADV_SEQUENTIAL
154# define POSIX_MADV_SEQUENTIAL 0
155#endif
156#ifndef POSIX_MADV_RANDOM
157# define POSIX_MADV_RANDOM 0
158#endif
159#ifndef POSIX_MADV_WILLNEED
160# define POSIX_MADV_WILLNEED 0
161#endif
162#ifndef POSIX_MADV_DONTNEED
163# define POSIX_MADV_DONTNEED 0
164#endif
165
166#if _XOPEN_SOURCE < 600 || NO_MADVISE
167# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168#endif
169
170#ifndef PROT_NONE
171# define PROT_NONE 0
172#endif
173#ifndef PROT_READ
174# define PROT_READ 0
175#endif
176#ifndef PROT_WRITE
177# define PROT_READ 0
178#endif
179#ifndef PROT_EXEC
180# define PROT_EXEC 0
181#endif
182
145#ifndef ST_NODEV 183#ifndef ST_NODEV
146# define ST_NODEV 0 184# define ST_NODEV 0
147#endif 185#endif
148#ifndef ST_NOEXEC 186#ifndef ST_NOEXEC
149# define ST_NOEXEC 0 187# define ST_NOEXEC 0
… …
169#ifndef ST_NODIRATIME 207#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0 208# define ST_NODIRATIME 0
171#endif 209#endif
172#ifndef ST_RELATIME 210#ifndef ST_RELATIME
173# define ST_RELATIME 0 211# 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 212#endif
182 213
183#ifndef MAP_ANONYMOUS 214#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON 215# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON 216# define MAP_ANONYMOUS MAP_ANON
… …
304 } 335 }
305} 336}
306 337
307static int req_invoke (eio_req *req) 338static int req_invoke (eio_req *req)
308{ 339{
309 dSP;
310
311 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
312 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
313 342
314 if (!EIO_CANCELLED (req) && req->callback) 343 if (!EIO_CANCELLED (req) && req->callback)
315 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
316 ENTER; 349 ENTER;
317 SAVETMPS; 350 SAVETMPS;
318 PUSHMARK (SP); 351 PUSHMARK (SP);
319 EXTEND (SP, 1); 352 EXTEND (SP, 1);
353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
356 {
357 sv_result = sv_result_cache; sv_result_cache = 0;
358 SvIV_set (sv_result, req->result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
320 365
321 switch (req->type) 366 switch (req->type)
322 { 367 {
323 case EIO_READDIR: 368 case EIO_READDIR:
324 { 369 {
… …
469 case EIO_LSTAT: 514 case EIO_LSTAT:
470 case EIO_FSTAT: 515 case EIO_FSTAT:
471 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
472 PL_laststatval = req->result; 517 PL_laststatval = req->result;
473 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
475 break; 520 break;
476 521
477 case EIO_READ: 522 case EIO_READ:
478 { 523 {
479 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 524 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
481 SvPOK_only (req->sv2); 526 SvPOK_only (req->sv2);
482 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
483 PUSHs (sv_2mortal (newSViv (req->result))); 528 PUSHs (sv_result);
484 } 529 }
485 break; 530 break;
486 531
487 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
488 if (req->result > 0) 533 if (req->result > 0)
489 req->result = 0; 534 SvIV_set (sv_result, 0);
490 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
491 536
492 default: 537 default:
493 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
494 break; 539 break;
495 } 540 }
496 541
497 errno = req->errorno; 542 errno = req->errorno;
498 543
499 PUTBACK; 544 PUTBACK;
500 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501 SPAGAIN; 546 SPAGAIN;
547
548 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
549 SvREFCNT_dec (sv_result);
550 else
551 sv_result_cache = sv_result;
502 552
503 FREETMPS; 553 FREETMPS;
504 LEAVE; 554 LEAVE;
505 555
506 PUTBACK; 556 PUTBACK;
… …
587/*****************************************************************************/ 637/*****************************************************************************/
588 638
589#if !_POSIX_MAPPED_FILES 639#if !_POSIX_MAPPED_FILES
590# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591# define munmap(addr,length) (errno = ENOSYS, -1) 641# define munmap(addr,length) (errno = ENOSYS, -1)
642# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
592#endif 643#endif
593 644
594#define MMAP_MAGIC PERL_MAGIC_ext 645#define MMAP_MAGIC PERL_MAGIC_ext
595 646
596static int 647static int
… …
601 errno = old_errno; 652 errno = old_errno;
602 653
603 mg->mg_obj = 0; /* just in case */ 654 mg->mg_obj = 0; /* just in case */
604 655
605 SvREADONLY_off (sv); 656 SvREADONLY_off (sv);
657
658 if (SvPVX (sv) != mg->mg_ptr)
659 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
660
606 SvCUR_set (sv, 0); 661 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0; 662 SvPVX (sv) = 0;
609 SvOK_off (sv); 663 SvOK_off (sv);
610 664
611 return 0; 665 return 0;
612} 666}
… …
662# define const_eio(name) { # name, (IV) EIO_ ## name }, 716# define const_eio(name) { # name, (IV) EIO_ ## name },
663 const_iv (EXDEV) 717 const_iv (EXDEV)
664 const_iv (ENOSYS) 718 const_iv (ENOSYS)
665 const_iv (O_RDONLY) 719 const_iv (O_RDONLY)
666 const_iv (O_WRONLY) 720 const_iv (O_WRONLY)
721 const_iv (O_RDWR)
667 const_iv (O_CREAT) 722 const_iv (O_CREAT)
668 const_iv (O_TRUNC) 723 const_iv (O_TRUNC)
724 const_iv (O_EXCL)
725 const_iv (O_APPEND)
669#ifndef _WIN32 726#ifndef _WIN32
670 const_iv (S_IFIFO) 727 const_iv (S_IFIFO)
671#endif 728#endif
672 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) 729 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 730 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 731 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 732 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 733 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 734 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
735
736 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
737 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
738 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
739 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
740 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678 741
679 const_iv (ST_RDONLY) 742 const_iv (ST_RDONLY)
680 const_iv (ST_NOSUID) 743 const_iv (ST_NOSUID)
681 const_iv (ST_NODEV) 744 const_iv (ST_NODEV)
682 const_iv (ST_NOEXEC) 745 const_iv (ST_NOEXEC)
… …
687 const_iv (ST_IMMUTABLE) 750 const_iv (ST_IMMUTABLE)
688 const_iv (ST_NOATIME) 751 const_iv (ST_NOATIME)
689 const_iv (ST_NODIRATIME) 752 const_iv (ST_NODIRATIME)
690 const_iv (ST_RELATIME) 753 const_iv (ST_RELATIME)
691 754
755 const_iv (PROT_NONE)
692 const_iv (PROT_EXEC) 756 const_iv (PROT_EXEC)
693 const_iv (PROT_NONE)
694 const_iv (PROT_READ) 757 const_iv (PROT_READ)
695 const_iv (PROT_WRITE) 758 const_iv (PROT_WRITE)
696 759
697 /*const_iv (MAP_FIXED)*/ 760 /*const_iv (MAP_FIXED)*/
698 const_iv (MAP_PRIVATE) 761 const_iv (MAP_PRIVATE)
… …
704 const_iv (MAP_LOCKED) 767 const_iv (MAP_LOCKED)
705 const_iv (MAP_NORESERVE) 768 const_iv (MAP_NORESERVE)
706 const_iv (MAP_POPULATE) 769 const_iv (MAP_POPULATE)
707 const_iv (MAP_NONBLOCK) 770 const_iv (MAP_NONBLOCK)
708 771
709 const_iv (MCL_FUTURE) 772 const_eio (MCL_FUTURE)
710 const_iv (MCL_CURRENT) 773 const_eio (MCL_CURRENT)
711 774
712 const_eio (MS_ASYNC) 775 const_eio (MS_ASYNC)
713 const_eio (MS_INVALIDATE) 776 const_eio (MS_INVALIDATE)
714 const_eio (MS_SYNC) 777 const_eio (MS_SYNC)
715 778
… …
789 CODE: 852 CODE:
790 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
791 854
792void 855void
793aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 856aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
794 PROTOTYPE: $$$;$
795 PPCODE: 857 PPCODE:
796{ 858{
797 dREQ; 859 dREQ;
798 860
799 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
… …
805 REQ_SEND; 867 REQ_SEND;
806} 868}
807 869
808void 870void
809aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810 PROTOTYPE: $;$
811 ALIAS: 872 ALIAS:
812 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
813 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
814 PPCODE: 875 PPCODE:
815{ 876{
… …
823 REQ_SEND (req); 884 REQ_SEND (req);
824} 885}
825 886
826void 887void
827aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 888aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828 PROTOTYPE: $$$$;$
829 PPCODE: 889 PPCODE:
830{ 890{
831 int fd = s_fileno_croak (fh, 0); 891 int fd = s_fileno_croak (fh, 0);
832 dREQ; 892 dREQ;
833 893
… …
841 REQ_SEND (req); 901 REQ_SEND (req);
842} 902}
843 903
844void 904void
845aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
846 PROTOTYPE: $;$
847 PPCODE: 906 PPCODE:
848{ 907{
849 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 908 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850 int fd = s_fileno_croak (fh, 0); 909 int fd = s_fileno_croak (fh, 0);
851 dREQ; 910 dREQ;
… …
873void 932void
874aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 933aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875 ALIAS: 934 ALIAS:
876 aio_read = EIO_READ 935 aio_read = EIO_READ
877 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
878 PROTOTYPE: $$$$$;$
879 PPCODE: 937 PPCODE:
880{ 938{
881 STRLEN svlen; 939 STRLEN svlen;
882 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
… …
924 } 982 }
925} 983}
926 984
927void 985void
928aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
929 PROTOTYPE: $$;$
930 PPCODE: 987 PPCODE:
931{ 988{
932 SV *data; 989 SV *data;
933 dREQ; 990 dREQ;
934 991
… …
939 REQ_SEND; 996 REQ_SEND;
940} 997}
941 998
942void 999void
943aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1000aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944 PROTOTYPE: $$$$;$
945 PPCODE: 1001 PPCODE:
946{ 1002{
947 int ifd = s_fileno_croak (in_fh , 0); 1003 int ifd = s_fileno_croak (in_fh , 0);
948 int ofd = s_fileno_croak (out_fh, 1); 1004 int ofd = s_fileno_croak (out_fh, 1);
949 dREQ; 1005 dREQ;
… …
959 REQ_SEND; 1015 REQ_SEND;
960} 1016}
961 1017
962void 1018void
963aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964 PROTOTYPE: $$$;$
965 PPCODE: 1020 PPCODE:
966{ 1021{
967 int fd = s_fileno_croak (fh, 0); 1022 int fd = s_fileno_croak (fh, 0);
968 dREQ; 1023 dREQ;
969 1024
… …
1170void 1225void
1171aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1226aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172 ALIAS: 1227 ALIAS:
1173 aio_mtouch = EIO_MTOUCH 1228 aio_mtouch = EIO_MTOUCH
1174 aio_msync = EIO_MSYNC 1229 aio_msync = EIO_MSYNC
1175 PROTOTYPE: $$$$;$
1176 PPCODE: 1230 PPCODE:
1177{ 1231{
1178 STRLEN svlen; 1232 STRLEN svlen;
1233 char *svptr = SvPVbyte (data, svlen);
1179 UV len = SvUV (length); 1234 UV len = SvUV (length);
1180 char *svptr = SvPVbyte (data, svlen);
1181 1235
1182 if (offset < 0) 1236 if (offset < 0)
1183 offset += svlen; 1237 offset += svlen;
1184 1238
1185 if (offset < 0 || offset > svlen) 1239 if (offset < 0 || offset > svlen)
… …
1190 1244
1191 { 1245 {
1192 dREQ; 1246 dREQ;
1193 1247
1194 req->type = ix; 1248 req->type = ix;
1195 req->size = len;
1196 req->sv2 = SvREFCNT_inc (data); 1249 req->sv2 = SvREFCNT_inc (data);
1197 req->ptr2 = (char *)svptr + offset; 1250 req->ptr2 = (char *)svptr + offset;
1251 req->size = len;
1198 req->int1 = flags; 1252 req->int1 = flags;
1199 1253
1200 REQ_SEND; 1254 REQ_SEND;
1201 } 1255 }
1202} 1256}
1203 1257
1204void 1258void
1259aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1260 PPCODE:
1261{
1262 STRLEN svlen;
1263 char *svptr = SvPVbyte (data, svlen);
1264 UV len = SvUV (length);
1265
1266 if (offset < 0)
1267 offset += svlen;
1268
1269 if (offset < 0 || offset > svlen)
1270 croak ("offset outside of scalar");
1271
1272 if (!SvOK (length) || len + offset > svlen)
1273 len = svlen - offset;
1274
1275 {
1276 dREQ;
1277
1278 req->type = EIO_MLOCK;
1279 req->sv2 = SvREFCNT_inc (data);
1280 req->ptr2 = (char *)svptr + offset;
1281 req->size = len;
1282
1283 REQ_SEND;
1284 }
1285}
1286
1287void
1288aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1289 PPCODE:
1290{
1291 dREQ;
1292
1293 req->type = EIO_MLOCKALL;
1294 req->int1 = flags;
1295
1296 REQ_SEND;
1297}
1298
1299void
1205aio_busy (double delay, SV *callback=&PL_sv_undef) 1300aio_busy (double delay, SV *callback=&PL_sv_undef)
1206 PPCODE: 1301 PPCODE:
1207{ 1302{
1208 dREQ; 1303 dREQ;
1209 1304
… …
1213 REQ_SEND; 1308 REQ_SEND;
1214} 1309}
1215 1310
1216void 1311void
1217aio_group (SV *callback=&PL_sv_undef) 1312aio_group (SV *callback=&PL_sv_undef)
1218 PROTOTYPE: ;$
1219 PPCODE: 1313 PPCODE:
1220{ 1314{
1221 dREQ; 1315 dREQ;
1222 1316
1223 req->type = EIO_GROUP; 1317 req->type = EIO_GROUP;
… …
1240 REQ_SEND; 1334 REQ_SEND;
1241} 1335}
1242 1336
1243int 1337int
1244aioreq_pri (int pri = 0) 1338aioreq_pri (int pri = 0)
1245 PROTOTYPE: ;$
1246 CODE: 1339 CODE:
1247 RETVAL = next_pri; 1340 RETVAL = next_pri;
1248 if (items > 0) 1341 if (items > 0)
1249 { 1342 {
1250 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1343 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1262 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1355 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263 next_pri = nice; 1356 next_pri = nice;
1264 1357
1265void 1358void
1266flush () 1359flush ()
1267 PROTOTYPE:
1268 CODE: 1360 CODE:
1269 while (eio_nreqs ()) 1361 while (eio_nreqs ())
1270 { 1362 {
1271 poll_wait (); 1363 poll_wait ();
1272 poll_cb (); 1364 poll_cb ();
1273 } 1365 }
1274 1366
1275int 1367int
1276poll() 1368poll ()
1277 PROTOTYPE:
1278 CODE: 1369 CODE:
1279 poll_wait (); 1370 poll_wait ();
1280 RETVAL = poll_cb (); 1371 RETVAL = poll_cb ();
1281 OUTPUT: 1372 OUTPUT:
1282 RETVAL 1373 RETVAL
1283 1374
1284int 1375int
1285poll_fileno() 1376poll_fileno ()
1286 PROTOTYPE:
1287 CODE: 1377 CODE:
1288 RETVAL = s_epipe_fd (&respipe); 1378 RETVAL = s_epipe_fd (&respipe);
1289 OUTPUT: 1379 OUTPUT:
1290 RETVAL 1380 RETVAL
1291 1381
1292int 1382int
1293poll_cb(...) 1383poll_cb (...)
1294 PROTOTYPE: 1384 PROTOTYPE:
1295 CODE: 1385 CODE:
1296 RETVAL = poll_cb (); 1386 RETVAL = poll_cb ();
1297 OUTPUT: 1387 OUTPUT:
1298 RETVAL 1388 RETVAL
1299 1389
1300void 1390void
1301poll_wait() 1391poll_wait ()
1302 PROTOTYPE:
1303 CODE: 1392 CODE:
1304 poll_wait (); 1393 poll_wait ();
1305 1394
1306int 1395int
1307nreqs() 1396nreqs ()
1308 PROTOTYPE:
1309 CODE: 1397 CODE:
1310 RETVAL = eio_nreqs (); 1398 RETVAL = eio_nreqs ();
1311 OUTPUT: 1399 OUTPUT:
1312 RETVAL 1400 RETVAL
1313 1401
1314int 1402int
1315nready() 1403nready ()
1316 PROTOTYPE:
1317 CODE: 1404 CODE:
1318 RETVAL = eio_nready (); 1405 RETVAL = eio_nready ();
1319 OUTPUT: 1406 OUTPUT:
1320 RETVAL 1407 RETVAL
1321 1408
1322int 1409int
1323npending() 1410npending ()
1324 PROTOTYPE:
1325 CODE: 1411 CODE:
1326 RETVAL = eio_npending (); 1412 RETVAL = eio_npending ();
1327 OUTPUT: 1413 OUTPUT:
1328 RETVAL 1414 RETVAL
1329 1415
1330int 1416int
1331nthreads() 1417nthreads ()
1332 PROTOTYPE:
1333 CODE: 1418 CODE:
1334 RETVAL = eio_nthreads (); 1419 RETVAL = eio_nthreads ();
1335 OUTPUT: 1420 OUTPUT:
1336 RETVAL 1421 RETVAL
1337 1422
1338int 1423int
1339fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1424fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340 PROTOTYPE: $$$$
1341 CODE: 1425 CODE:
1342#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343 RETVAL = posix_fadvise (fh, offset, length, advice); 1426 RETVAL = posix_fadvise (fh, offset, length, advice);
1344#else
1345 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346#endif
1347 OUTPUT: 1427 OUTPUT:
1348 RETVAL 1428 RETVAL
1349 1429
1350ssize_t 1430ssize_t
1351sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1431sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352 PROTOTYPE: $$$$
1353 CODE: 1432 CODE:
1354 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1433 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355 OUTPUT: 1434 OUTPUT:
1356 RETVAL 1435 RETVAL
1357 1436
1358void 1437void
1359mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1438mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360 PROTOTYPE: $$$$$;$
1361 PPCODE: 1439 PPCODE:
1362 sv_unmagic (scalar, MMAP_MAGIC); 1440 sv_unmagic (scalar, MMAP_MAGIC);
1363{ 1441{
1364 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1442 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1443 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366 if (addr == (void *)-1) 1444 if (addr == (void *)-1)
1367 XSRETURN_NO; 1445 XSRETURN_NO;
1368 1446
1447 sv_force_normal (scalar);
1448
1369 /* we store the length in mg_obj, as namlen is I32 :/ */ 1449 /* we store the length in mg_obj, as namlen is I32 :/ */
1370 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1450 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371 ->mg_obj = (SV *)length; 1451 ->mg_obj = (SV *)length;
1372 1452
1373 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1453 SvUPGRADE (scalar, SVt_PV); /* nop... */
1454
1374 if (!(prot & PROT_WRITE)) 1455 if (!(prot & PROT_WRITE))
1375 SvREADONLY_on (scalar); 1456 SvREADONLY_on (scalar);
1457
1458 if (SvLEN (scalar))
1459 Safefree (SvPVX (scalar));
1376 1460
1377 SvPVX (scalar) = (char *)addr; 1461 SvPVX (scalar) = (char *)addr;
1378 SvCUR_set (scalar, length); 1462 SvCUR_set (scalar, length);
1379 SvLEN_set (scalar, 0); 1463 SvLEN_set (scalar, 0);
1380 SvPOK_only (scalar); 1464 SvPOK_only (scalar);
… …
1382 XSRETURN_YES; 1466 XSRETURN_YES;
1383} 1467}
1384 1468
1385void 1469void
1386munmap (SV *scalar) 1470munmap (SV *scalar)
1387 PROTOTYPE: $
1388 CODE: 1471 CODE:
1389 sv_unmagic (scalar, MMAP_MAGIC); 1472 sv_unmagic (scalar, MMAP_MAGIC);
1390 1473
1391int 1474int
1392mlockall (int flags) 1475madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393 PROTOTYPE: $ 1476 ALIAS:
1477 mprotect = 1
1394 CODE: 1478 CODE:
1479{
1480 STRLEN svlen;
1481 void *addr = SvPVbyte (scalar, svlen);
1482 size_t len = SvUV (length);
1483
1484 if (offset < 0)
1485 offset += svlen;
1486
1487 if (offset < 0 || offset > svlen)
1488 croak ("offset outside of scalar");
1489
1490 if (!SvOK (length) || len + offset > svlen)
1491 len = svlen - offset;
1492
1493 addr = (void *)(((intptr_t)addr) + offset);
1494 eio_page_align (&addr, &len);
1495
1496 switch (ix)
1497 {
1498 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1499 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1500 }
1501}
1502 OUTPUT:
1503 RETVAL
1504
1505int
1506munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1507 CODE:
1508{
1509 STRLEN svlen;
1510 void *addr = SvPVbyte (scalar, svlen);
1511 size_t len = SvUV (length);
1512
1513 if (offset < 0)
1514 offset += svlen;
1515
1516 if (offset < 0 || offset > svlen)
1517 croak ("offset outside of scalar");
1518
1519 if (!SvOK (length) || len + offset > svlen)
1520 len = svlen - offset;
1521
1522 addr = (void *)(((intptr_t)addr) + offset);
1523 eio_page_align (&addr, &len);
1395#if _POSIX_MEMLOCK 1524#if _POSIX_MEMLOCK
1396#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1525 RETVAL = munlock (addr, len);
1397 extern int mallopt (int, int);
1398 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399#endif
1400 mlockall (flags);
1401#else 1526#else
1402 RETVAL = -1; 1527 RETVAL = ((errno = ENOSYS), -1);
1403 errno = ENOSYS;
1404#endif 1528#endif
1529}
1405 OUTPUT: 1530 OUTPUT:
1406 RETVAL 1531 RETVAL
1407 1532
1408int 1533int
1409munlockall () 1534munlockall ()
1410 PROTOTYPE:
1411 CODE: 1535 CODE:
1412#if _POSIX_MEMLOCK 1536#if _POSIX_MEMLOCK
1413 munlockall (); 1537 munlockall ();
1414#else 1538#else
1415 RETVAL = -1; 1539 RETVAL = -1;

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