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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.164 by root, Tue May 4 21:14:01 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}
… …
677 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 731 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
678 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 732 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
679 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 733 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
680 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 734 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
681 735
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)
741
682 const_iv (ST_RDONLY) 742 const_iv (ST_RDONLY)
683 const_iv (ST_NOSUID) 743 const_iv (ST_NOSUID)
684 const_iv (ST_NODEV) 744 const_iv (ST_NODEV)
685 const_iv (ST_NOEXEC) 745 const_iv (ST_NOEXEC)
686 const_iv (ST_SYNCHRONOUS) 746 const_iv (ST_SYNCHRONOUS)
… …
690 const_iv (ST_IMMUTABLE) 750 const_iv (ST_IMMUTABLE)
691 const_iv (ST_NOATIME) 751 const_iv (ST_NOATIME)
692 const_iv (ST_NODIRATIME) 752 const_iv (ST_NODIRATIME)
693 const_iv (ST_RELATIME) 753 const_iv (ST_RELATIME)
694 754
755 const_iv (PROT_NONE)
695 const_iv (PROT_EXEC) 756 const_iv (PROT_EXEC)
696 const_iv (PROT_NONE)
697 const_iv (PROT_READ) 757 const_iv (PROT_READ)
698 const_iv (PROT_WRITE) 758 const_iv (PROT_WRITE)
699 759
700 /*const_iv (MAP_FIXED)*/ 760 /*const_iv (MAP_FIXED)*/
701 const_iv (MAP_PRIVATE) 761 const_iv (MAP_PRIVATE)
… …
707 const_iv (MAP_LOCKED) 767 const_iv (MAP_LOCKED)
708 const_iv (MAP_NORESERVE) 768 const_iv (MAP_NORESERVE)
709 const_iv (MAP_POPULATE) 769 const_iv (MAP_POPULATE)
710 const_iv (MAP_NONBLOCK) 770 const_iv (MAP_NONBLOCK)
711 771
712 const_iv (MCL_FUTURE) 772 const_eio (MCL_FUTURE)
713 const_iv (MCL_CURRENT) 773 const_eio (MCL_CURRENT)
714 774
715 const_eio (MS_ASYNC) 775 const_eio (MS_ASYNC)
716 const_eio (MS_INVALIDATE) 776 const_eio (MS_INVALIDATE)
717 const_eio (MS_SYNC) 777 const_eio (MS_SYNC)
718 778
… …
792 CODE: 852 CODE:
793 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
794 854
795void 855void
796aio_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)
797 PROTOTYPE: $$$;$
798 PPCODE: 857 PPCODE:
799{ 858{
800 dREQ; 859 dREQ;
801 860
802 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
… …
808 REQ_SEND; 867 REQ_SEND;
809} 868}
810 869
811void 870void
812aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
813 PROTOTYPE: $;$
814 ALIAS: 872 ALIAS:
815 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
816 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
817 PPCODE: 875 PPCODE:
818{ 876{
… …
826 REQ_SEND (req); 884 REQ_SEND (req);
827} 885}
828 886
829void 887void
830aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 888aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
831 PROTOTYPE: $$$$;$
832 PPCODE: 889 PPCODE:
833{ 890{
834 int fd = s_fileno_croak (fh, 0); 891 int fd = s_fileno_croak (fh, 0);
835 dREQ; 892 dREQ;
836 893
… …
844 REQ_SEND (req); 901 REQ_SEND (req);
845} 902}
846 903
847void 904void
848aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
849 PROTOTYPE: $;$
850 PPCODE: 906 PPCODE:
851{ 907{
852 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 908 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
853 int fd = s_fileno_croak (fh, 0); 909 int fd = s_fileno_croak (fh, 0);
854 dREQ; 910 dREQ;
… …
876void 932void
877aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 933aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
878 ALIAS: 934 ALIAS:
879 aio_read = EIO_READ 935 aio_read = EIO_READ
880 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
881 PROTOTYPE: $$$$$;$
882 PPCODE: 937 PPCODE:
883{ 938{
884 STRLEN svlen; 939 STRLEN svlen;
885 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
886 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
… …
927 } 982 }
928} 983}
929 984
930void 985void
931aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
932 PROTOTYPE: $$;$
933 PPCODE: 987 PPCODE:
934{ 988{
935 SV *data; 989 SV *data;
936 dREQ; 990 dREQ;
937 991
… …
942 REQ_SEND; 996 REQ_SEND;
943} 997}
944 998
945void 999void
946aio_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)
947 PROTOTYPE: $$$$;$
948 PPCODE: 1001 PPCODE:
949{ 1002{
950 int ifd = s_fileno_croak (in_fh , 0); 1003 int ifd = s_fileno_croak (in_fh , 0);
951 int ofd = s_fileno_croak (out_fh, 1); 1004 int ofd = s_fileno_croak (out_fh, 1);
952 dREQ; 1005 dREQ;
… …
962 REQ_SEND; 1015 REQ_SEND;
963} 1016}
964 1017
965void 1018void
966aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
967 PROTOTYPE: $$$;$
968 PPCODE: 1020 PPCODE:
969{ 1021{
970 int fd = s_fileno_croak (fh, 0); 1022 int fd = s_fileno_croak (fh, 0);
971 dREQ; 1023 dREQ;
972 1024
… …
1173void 1225void
1174aio_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)
1175 ALIAS: 1227 ALIAS:
1176 aio_mtouch = EIO_MTOUCH 1228 aio_mtouch = EIO_MTOUCH
1177 aio_msync = EIO_MSYNC 1229 aio_msync = EIO_MSYNC
1178 PROTOTYPE: $$$$;$
1179 PPCODE: 1230 PPCODE:
1180{ 1231{
1181 STRLEN svlen; 1232 STRLEN svlen;
1233 char *svptr = SvPVbyte (data, svlen);
1182 UV len = SvUV (length); 1234 UV len = SvUV (length);
1183 char *svptr = SvPVbyte (data, svlen);
1184 1235
1185 if (offset < 0) 1236 if (offset < 0)
1186 offset += svlen; 1237 offset += svlen;
1187 1238
1188 if (offset < 0 || offset > svlen) 1239 if (offset < 0 || offset > svlen)
… …
1193 1244
1194 { 1245 {
1195 dREQ; 1246 dREQ;
1196 1247
1197 req->type = ix; 1248 req->type = ix;
1198 req->size = len;
1199 req->sv2 = SvREFCNT_inc (data); 1249 req->sv2 = SvREFCNT_inc (data);
1200 req->ptr2 = (char *)svptr + offset; 1250 req->ptr2 = (char *)svptr + offset;
1251 req->size = len;
1201 req->int1 = flags; 1252 req->int1 = flags;
1202 1253
1203 REQ_SEND; 1254 REQ_SEND;
1204 } 1255 }
1205} 1256}
1206 1257
1207void 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
1208aio_busy (double delay, SV *callback=&PL_sv_undef) 1300aio_busy (double delay, SV *callback=&PL_sv_undef)
1209 PPCODE: 1301 PPCODE:
1210{ 1302{
1211 dREQ; 1303 dREQ;
1212 1304
… …
1216 REQ_SEND; 1308 REQ_SEND;
1217} 1309}
1218 1310
1219void 1311void
1220aio_group (SV *callback=&PL_sv_undef) 1312aio_group (SV *callback=&PL_sv_undef)
1221 PROTOTYPE: ;$
1222 PPCODE: 1313 PPCODE:
1223{ 1314{
1224 dREQ; 1315 dREQ;
1225 1316
1226 req->type = EIO_GROUP; 1317 req->type = EIO_GROUP;
… …
1243 REQ_SEND; 1334 REQ_SEND;
1244} 1335}
1245 1336
1246int 1337int
1247aioreq_pri (int pri = 0) 1338aioreq_pri (int pri = 0)
1248 PROTOTYPE: ;$
1249 CODE: 1339 CODE:
1250 RETVAL = next_pri; 1340 RETVAL = next_pri;
1251 if (items > 0) 1341 if (items > 0)
1252 { 1342 {
1253 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1343 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1265 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1355 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1266 next_pri = nice; 1356 next_pri = nice;
1267 1357
1268void 1358void
1269flush () 1359flush ()
1270 PROTOTYPE:
1271 CODE: 1360 CODE:
1272 while (eio_nreqs ()) 1361 while (eio_nreqs ())
1273 { 1362 {
1274 poll_wait (); 1363 poll_wait ();
1275 poll_cb (); 1364 poll_cb ();
1276 } 1365 }
1277 1366
1278int 1367int
1279poll() 1368poll ()
1280 PROTOTYPE:
1281 CODE: 1369 CODE:
1282 poll_wait (); 1370 poll_wait ();
1283 RETVAL = poll_cb (); 1371 RETVAL = poll_cb ();
1284 OUTPUT: 1372 OUTPUT:
1285 RETVAL 1373 RETVAL
1286 1374
1287int 1375int
1288poll_fileno() 1376poll_fileno ()
1289 PROTOTYPE:
1290 CODE: 1377 CODE:
1291 RETVAL = s_epipe_fd (&respipe); 1378 RETVAL = s_epipe_fd (&respipe);
1292 OUTPUT: 1379 OUTPUT:
1293 RETVAL 1380 RETVAL
1294 1381
1295int 1382int
1296poll_cb(...) 1383poll_cb (...)
1297 PROTOTYPE: 1384 PROTOTYPE:
1298 CODE: 1385 CODE:
1299 RETVAL = poll_cb (); 1386 RETVAL = poll_cb ();
1300 OUTPUT: 1387 OUTPUT:
1301 RETVAL 1388 RETVAL
1302 1389
1303void 1390void
1304poll_wait() 1391poll_wait ()
1305 PROTOTYPE:
1306 CODE: 1392 CODE:
1307 poll_wait (); 1393 poll_wait ();
1308 1394
1309int 1395int
1310nreqs() 1396nreqs ()
1311 PROTOTYPE:
1312 CODE: 1397 CODE:
1313 RETVAL = eio_nreqs (); 1398 RETVAL = eio_nreqs ();
1314 OUTPUT: 1399 OUTPUT:
1315 RETVAL 1400 RETVAL
1316 1401
1317int 1402int
1318nready() 1403nready ()
1319 PROTOTYPE:
1320 CODE: 1404 CODE:
1321 RETVAL = eio_nready (); 1405 RETVAL = eio_nready ();
1322 OUTPUT: 1406 OUTPUT:
1323 RETVAL 1407 RETVAL
1324 1408
1325int 1409int
1326npending() 1410npending ()
1327 PROTOTYPE:
1328 CODE: 1411 CODE:
1329 RETVAL = eio_npending (); 1412 RETVAL = eio_npending ();
1330 OUTPUT: 1413 OUTPUT:
1331 RETVAL 1414 RETVAL
1332 1415
1333int 1416int
1334nthreads() 1417nthreads ()
1335 PROTOTYPE:
1336 CODE: 1418 CODE:
1337 RETVAL = eio_nthreads (); 1419 RETVAL = eio_nthreads ();
1338 OUTPUT: 1420 OUTPUT:
1339 RETVAL 1421 RETVAL
1340 1422
1341int 1423int
1342fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1424fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1343 PROTOTYPE: $$$$
1344 CODE: 1425 CODE:
1345#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1346 RETVAL = posix_fadvise (fh, offset, length, advice); 1426 RETVAL = posix_fadvise (fh, offset, length, advice);
1347#else
1348 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1349#endif
1350 OUTPUT: 1427 OUTPUT:
1351 RETVAL 1428 RETVAL
1352 1429
1353ssize_t 1430ssize_t
1354sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1431sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1355 PROTOTYPE: $$$$
1356 CODE: 1432 CODE:
1357 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1433 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1358 OUTPUT: 1434 OUTPUT:
1359 RETVAL 1435 RETVAL
1360 1436
1361void 1437void
1362mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1438mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1439 PPCODE:
1365 sv_unmagic (scalar, MMAP_MAGIC); 1440 sv_unmagic (scalar, MMAP_MAGIC);
1366{ 1441{
1367 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;
1368 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1443 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369 if (addr == (void *)-1) 1444 if (addr == (void *)-1)
1370 XSRETURN_NO; 1445 XSRETURN_NO;
1371 1446
1447 sv_force_normal (scalar);
1448
1372 /* we store the length in mg_obj, as namlen is I32 :/ */ 1449 /* we store the length in mg_obj, as namlen is I32 :/ */
1373 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1450 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374 ->mg_obj = (SV *)length; 1451 ->mg_obj = (SV *)length;
1375 1452
1376 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1453 SvUPGRADE (scalar, SVt_PV); /* nop... */
1454
1377 if (!(prot & PROT_WRITE)) 1455 if (!(prot & PROT_WRITE))
1378 SvREADONLY_on (scalar); 1456 SvREADONLY_on (scalar);
1457
1458 if (SvLEN (scalar))
1459 Safefree (SvPVX (scalar));
1379 1460
1380 SvPVX (scalar) = (char *)addr; 1461 SvPVX (scalar) = (char *)addr;
1381 SvCUR_set (scalar, length); 1462 SvCUR_set (scalar, length);
1382 SvLEN_set (scalar, 0); 1463 SvLEN_set (scalar, 0);
1383 SvPOK_only (scalar); 1464 SvPOK_only (scalar);
… …
1385 XSRETURN_YES; 1466 XSRETURN_YES;
1386} 1467}
1387 1468
1388void 1469void
1389munmap (SV *scalar) 1470munmap (SV *scalar)
1390 PROTOTYPE: $
1391 CODE: 1471 CODE:
1392 sv_unmagic (scalar, MMAP_MAGIC); 1472 sv_unmagic (scalar, MMAP_MAGIC);
1393 1473
1394int 1474int
1395mlockall (int flags) 1475madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1396 PROTOTYPE: $ 1476 ALIAS:
1477 mprotect = 1
1397 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);
1398#if _POSIX_MEMLOCK 1524#if _POSIX_MEMLOCK
1399#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1525 RETVAL = munlock (addr, len);
1400 extern int mallopt (int, int);
1401 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1402#endif
1403 mlockall (flags);
1404#else 1526#else
1405 RETVAL = -1; 1527 RETVAL = ((errno = ENOSYS), -1);
1406 errno = ENOSYS;
1407#endif 1528#endif
1529}
1408 OUTPUT: 1530 OUTPUT:
1409 RETVAL 1531 RETVAL
1410 1532
1411int 1533int
1412munlockall () 1534munlockall ()
1413 PROTOTYPE:
1414 CODE: 1535 CODE:
1415#if _POSIX_MEMLOCK 1536#if _POSIX_MEMLOCK
1416 munlockall (); 1537 munlockall ();
1417#else 1538#else
1418 RETVAL = -1; 1539 RETVAL = -1;

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