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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.166 by root, Sun May 9 20:43:28 2010 UTC vs.
Revision 1.172 by root, Sun Sep 12 03:36:27 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
… …
496 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
497 PUSHs (sv_result); 528 PUSHs (sv_result);
498 } 529 }
499 break; 530 break;
500 531
501 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
502 if (req->result > 0) 533 if (req->result > 0)
503 SvIV_set (sv_result, 0); 534 SvIV_set (sv_result, 0);
504 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
505 536
506 default: 537 default:
… …
606/*****************************************************************************/ 637/*****************************************************************************/
607 638
608#if !_POSIX_MAPPED_FILES 639#if !_POSIX_MAPPED_FILES
609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610# define munmap(addr,length) (errno = ENOSYS, -1) 641# define munmap(addr,length) (errno = ENOSYS, -1)
642# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
611#endif 643#endif
612 644
613#define MMAP_MAGIC PERL_MAGIC_ext 645#define MMAP_MAGIC PERL_MAGIC_ext
614 646
615static int 647static int
… …
620 errno = old_errno; 652 errno = old_errno;
621 653
622 mg->mg_obj = 0; /* just in case */ 654 mg->mg_obj = 0; /* just in case */
623 655
624 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
625 SvCUR_set (sv, 0); 661 SvCUR_set (sv, 0);
626 SvLEN_set (sv, 0);
627 SvPVX (sv) = 0; 662 SvPVX (sv) = 0;
628 SvOK_off (sv); 663 SvOK_off (sv);
629 664
630 return 0; 665 return 0;
631} 666}
… …
696 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 731 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
697 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 732 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
698 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 733 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
699 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 734 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
700 735
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
701 const_iv (ST_RDONLY) 742 const_iv (ST_RDONLY)
702 const_iv (ST_NOSUID) 743 const_iv (ST_NOSUID)
703 const_iv (ST_NODEV) 744 const_iv (ST_NODEV)
704 const_iv (ST_NOEXEC) 745 const_iv (ST_NOEXEC)
705 const_iv (ST_SYNCHRONOUS) 746 const_iv (ST_SYNCHRONOUS)
… …
709 const_iv (ST_IMMUTABLE) 750 const_iv (ST_IMMUTABLE)
710 const_iv (ST_NOATIME) 751 const_iv (ST_NOATIME)
711 const_iv (ST_NODIRATIME) 752 const_iv (ST_NODIRATIME)
712 const_iv (ST_RELATIME) 753 const_iv (ST_RELATIME)
713 754
755 const_iv (PROT_NONE)
714 const_iv (PROT_EXEC) 756 const_iv (PROT_EXEC)
715 const_iv (PROT_NONE)
716 const_iv (PROT_READ) 757 const_iv (PROT_READ)
717 const_iv (PROT_WRITE) 758 const_iv (PROT_WRITE)
718 759
719 /*const_iv (MAP_FIXED)*/ 760 /*const_iv (MAP_FIXED)*/
720 const_iv (MAP_PRIVATE) 761 const_iv (MAP_PRIVATE)
… …
726 const_iv (MAP_LOCKED) 767 const_iv (MAP_LOCKED)
727 const_iv (MAP_NORESERVE) 768 const_iv (MAP_NORESERVE)
728 const_iv (MAP_POPULATE) 769 const_iv (MAP_POPULATE)
729 const_iv (MAP_NONBLOCK) 770 const_iv (MAP_NONBLOCK)
730 771
731 const_iv (MCL_FUTURE) 772 const_eio (MCL_FUTURE)
732 const_iv (MCL_CURRENT) 773 const_eio (MCL_CURRENT)
733 774
734 const_eio (MS_ASYNC) 775 const_eio (MS_ASYNC)
735 const_eio (MS_INVALIDATE) 776 const_eio (MS_INVALIDATE)
736 const_eio (MS_SYNC) 777 const_eio (MS_SYNC)
737 778
… …
811 CODE: 852 CODE:
812 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
813 854
814void 855void
815aio_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)
816 PROTOTYPE: $$$;$
817 PPCODE: 857 PPCODE:
818{ 858{
819 dREQ; 859 dREQ;
820 860
821 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
… …
827 REQ_SEND; 867 REQ_SEND;
828} 868}
829 869
830void 870void
831aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
832 PROTOTYPE: $;$
833 ALIAS: 872 ALIAS:
834 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
835 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
836 PPCODE: 875 PPCODE:
837{ 876{
… …
845 REQ_SEND (req); 884 REQ_SEND (req);
846} 885}
847 886
848void 887void
849aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 888aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
850 PROTOTYPE: $$$$;$
851 PPCODE: 889 PPCODE:
852{ 890{
853 int fd = s_fileno_croak (fh, 0); 891 int fd = s_fileno_croak (fh, 0);
854 dREQ; 892 dREQ;
855 893
… …
863 REQ_SEND (req); 901 REQ_SEND (req);
864} 902}
865 903
866void 904void
867aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
868 PROTOTYPE: $;$
869 PPCODE: 906 PPCODE:
870{ 907{
871 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 908 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872 int fd = s_fileno_croak (fh, 0); 909 int fd = s_fileno_croak (fh, 0);
873 dREQ; 910 dREQ;
… …
895void 932void
896aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 933aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
897 ALIAS: 934 ALIAS:
898 aio_read = EIO_READ 935 aio_read = EIO_READ
899 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
900 PROTOTYPE: $$$$$;$
901 PPCODE: 937 PPCODE:
902{ 938{
903 STRLEN svlen; 939 STRLEN svlen;
904 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
905 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
… …
946 } 982 }
947} 983}
948 984
949void 985void
950aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
951 PROTOTYPE: $$;$
952 PPCODE: 987 PPCODE:
953{ 988{
954 SV *data; 989 SV *data;
955 dREQ; 990 dREQ;
956 991
… …
961 REQ_SEND; 996 REQ_SEND;
962} 997}
963 998
964void 999void
965aio_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)
966 PROTOTYPE: $$$$;$
967 PPCODE: 1001 PPCODE:
968{ 1002{
969 int ifd = s_fileno_croak (in_fh , 0); 1003 int ifd = s_fileno_croak (in_fh , 0);
970 int ofd = s_fileno_croak (out_fh, 1); 1004 int ofd = s_fileno_croak (out_fh, 1);
971 dREQ; 1005 dREQ;
… …
981 REQ_SEND; 1015 REQ_SEND;
982} 1016}
983 1017
984void 1018void
985aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
986 PROTOTYPE: $$$;$
987 PPCODE: 1020 PPCODE:
988{ 1021{
989 int fd = s_fileno_croak (fh, 0); 1022 int fd = s_fileno_croak (fh, 0);
990 dREQ; 1023 dREQ;
991 1024
… …
1192void 1225void
1193aio_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)
1194 ALIAS: 1227 ALIAS:
1195 aio_mtouch = EIO_MTOUCH 1228 aio_mtouch = EIO_MTOUCH
1196 aio_msync = EIO_MSYNC 1229 aio_msync = EIO_MSYNC
1197 PROTOTYPE: $$$$;$
1198 PPCODE: 1230 PPCODE:
1199{ 1231{
1200 STRLEN svlen; 1232 STRLEN svlen;
1233 char *svptr = SvPVbyte (data, svlen);
1201 UV len = SvUV (length); 1234 UV len = SvUV (length);
1202 char *svptr = SvPVbyte (data, svlen);
1203 1235
1204 if (offset < 0) 1236 if (offset < 0)
1205 offset += svlen; 1237 offset += svlen;
1206 1238
1207 if (offset < 0 || offset > svlen) 1239 if (offset < 0 || offset > svlen)
… …
1212 1244
1213 { 1245 {
1214 dREQ; 1246 dREQ;
1215 1247
1216 req->type = ix; 1248 req->type = ix;
1217 req->size = len;
1218 req->sv2 = SvREFCNT_inc (data); 1249 req->sv2 = SvREFCNT_inc (data);
1219 req->ptr2 = (char *)svptr + offset; 1250 req->ptr2 = (char *)svptr + offset;
1251 req->size = len;
1220 req->int1 = flags; 1252 req->int1 = flags;
1221 1253
1222 REQ_SEND; 1254 REQ_SEND;
1223 } 1255 }
1224} 1256}
1225 1257
1226void 1258void
1259aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1260 PPCODE:
1261{
1262
1263 STRLEN svlen;
1264 char *svptr = SvPVbyte (data, svlen);
1265 UV len = SvUV (length);
1266
1267 if (offset < 0)
1268 offset += svlen;
1269
1270 if (offset < 0 || offset > svlen)
1271 croak ("offset outside of scalar");
1272
1273 if (!SvOK (length) || len + offset > svlen)
1274 len = svlen - offset;
1275
1276 {
1277 dREQ;
1278
1279 req->type = EIO_MLOCK;
1280 req->sv2 = SvREFCNT_inc (data);
1281 req->ptr2 = (char *)svptr + offset;
1282 req->size = len;
1283
1284 REQ_SEND;
1285 }
1286}
1287
1288void
1289aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1290 PPCODE:
1291{
1292 dREQ;
1293
1294 req->type = EIO_MLOCKALL;
1295 req->int1 = flags;
1296
1297 REQ_SEND;
1298}
1299
1300void
1227aio_busy (double delay, SV *callback=&PL_sv_undef) 1301aio_busy (double delay, SV *callback=&PL_sv_undef)
1228 PPCODE: 1302 PPCODE:
1229{ 1303{
1230 dREQ; 1304 dREQ;
1231 1305
… …
1235 REQ_SEND; 1309 REQ_SEND;
1236} 1310}
1237 1311
1238void 1312void
1239aio_group (SV *callback=&PL_sv_undef) 1313aio_group (SV *callback=&PL_sv_undef)
1240 PROTOTYPE: ;$
1241 PPCODE: 1314 PPCODE:
1242{ 1315{
1243 dREQ; 1316 dREQ;
1244 1317
1245 req->type = EIO_GROUP; 1318 req->type = EIO_GROUP;
… …
1262 REQ_SEND; 1335 REQ_SEND;
1263} 1336}
1264 1337
1265int 1338int
1266aioreq_pri (int pri = 0) 1339aioreq_pri (int pri = 0)
1267 PROTOTYPE: ;$
1268 CODE: 1340 CODE:
1269 RETVAL = next_pri; 1341 RETVAL = next_pri;
1270 if (items > 0) 1342 if (items > 0)
1271 { 1343 {
1272 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1344 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1284 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1356 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1285 next_pri = nice; 1357 next_pri = nice;
1286 1358
1287void 1359void
1288flush () 1360flush ()
1289 PROTOTYPE:
1290 CODE: 1361 CODE:
1291 while (eio_nreqs ()) 1362 while (eio_nreqs ())
1292 { 1363 {
1293 poll_wait (); 1364 poll_wait ();
1294 poll_cb (); 1365 poll_cb ();
1295 } 1366 }
1296 1367
1297int 1368int
1298poll() 1369poll ()
1299 PROTOTYPE:
1300 CODE: 1370 CODE:
1301 poll_wait (); 1371 poll_wait ();
1302 RETVAL = poll_cb (); 1372 RETVAL = poll_cb ();
1303 OUTPUT: 1373 OUTPUT:
1304 RETVAL 1374 RETVAL
1305 1375
1306int 1376int
1307poll_fileno() 1377poll_fileno ()
1308 PROTOTYPE:
1309 CODE: 1378 CODE:
1310 RETVAL = s_epipe_fd (&respipe); 1379 RETVAL = s_epipe_fd (&respipe);
1311 OUTPUT: 1380 OUTPUT:
1312 RETVAL 1381 RETVAL
1313 1382
1314int 1383int
1315poll_cb(...) 1384poll_cb (...)
1316 PROTOTYPE: 1385 PROTOTYPE:
1317 CODE: 1386 CODE:
1318 RETVAL = poll_cb (); 1387 RETVAL = poll_cb ();
1319 OUTPUT: 1388 OUTPUT:
1320 RETVAL 1389 RETVAL
1321 1390
1322void 1391void
1323poll_wait() 1392poll_wait ()
1324 PROTOTYPE:
1325 CODE: 1393 CODE:
1326 poll_wait (); 1394 poll_wait ();
1327 1395
1328int 1396int
1329nreqs() 1397nreqs ()
1330 PROTOTYPE:
1331 CODE: 1398 CODE:
1332 RETVAL = eio_nreqs (); 1399 RETVAL = eio_nreqs ();
1333 OUTPUT: 1400 OUTPUT:
1334 RETVAL 1401 RETVAL
1335 1402
1336int 1403int
1337nready() 1404nready ()
1338 PROTOTYPE:
1339 CODE: 1405 CODE:
1340 RETVAL = eio_nready (); 1406 RETVAL = eio_nready ();
1341 OUTPUT: 1407 OUTPUT:
1342 RETVAL 1408 RETVAL
1343 1409
1344int 1410int
1345npending() 1411npending ()
1346 PROTOTYPE:
1347 CODE: 1412 CODE:
1348 RETVAL = eio_npending (); 1413 RETVAL = eio_npending ();
1349 OUTPUT: 1414 OUTPUT:
1350 RETVAL 1415 RETVAL
1351 1416
1352int 1417int
1353nthreads() 1418nthreads ()
1354 PROTOTYPE:
1355 CODE: 1419 CODE:
1356 RETVAL = eio_nthreads (); 1420 RETVAL = eio_nthreads ();
1357 OUTPUT: 1421 OUTPUT:
1358 RETVAL 1422 RETVAL
1359 1423
1360int 1424int
1361fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1425fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1362 PROTOTYPE: $$$$
1363 CODE: 1426 CODE:
1364#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1365 RETVAL = posix_fadvise (fh, offset, length, advice); 1427 RETVAL = posix_fadvise (fh, offset, length, advice);
1366#else
1367 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1368#endif
1369 OUTPUT: 1428 OUTPUT:
1370 RETVAL 1429 RETVAL
1371 1430
1372ssize_t 1431ssize_t
1373sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1432sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1374 PROTOTYPE: $$$$
1375 CODE: 1433 CODE:
1376 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1434 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1377 OUTPUT: 1435 OUTPUT:
1378 RETVAL 1436 RETVAL
1379 1437
1380void 1438void
1381mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1439mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382 PROTOTYPE: $$$$$;$
1383 PPCODE: 1440 PPCODE:
1384 sv_unmagic (scalar, MMAP_MAGIC); 1441 sv_unmagic (scalar, MMAP_MAGIC);
1385{ 1442{
1386 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1443 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1444 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388 if (addr == (void *)-1) 1445 if (addr == (void *)-1)
1389 XSRETURN_NO; 1446 XSRETURN_NO;
1390 1447
1448 sv_force_normal (scalar);
1449
1391 /* we store the length in mg_obj, as namlen is I32 :/ */ 1450 /* we store the length in mg_obj, as namlen is I32 :/ */
1392 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1451 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393 ->mg_obj = (SV *)length; 1452 ->mg_obj = (SV *)length;
1394 1453
1395 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1454 SvUPGRADE (scalar, SVt_PV); /* nop... */
1455
1396 if (!(prot & PROT_WRITE)) 1456 if (!(prot & PROT_WRITE))
1397 SvREADONLY_on (scalar); 1457 SvREADONLY_on (scalar);
1458
1459 if (SvLEN (scalar))
1460 Safefree (SvPVX (scalar));
1398 1461
1399 SvPVX (scalar) = (char *)addr; 1462 SvPVX (scalar) = (char *)addr;
1400 SvCUR_set (scalar, length); 1463 SvCUR_set (scalar, length);
1401 SvLEN_set (scalar, 0); 1464 SvLEN_set (scalar, 0);
1402 SvPOK_only (scalar); 1465 SvPOK_only (scalar);
… …
1404 XSRETURN_YES; 1467 XSRETURN_YES;
1405} 1468}
1406 1469
1407void 1470void
1408munmap (SV *scalar) 1471munmap (SV *scalar)
1409 PROTOTYPE: $
1410 CODE: 1472 CODE:
1411 sv_unmagic (scalar, MMAP_MAGIC); 1473 sv_unmagic (scalar, MMAP_MAGIC);
1412 1474
1413int 1475int
1414mlockall (int flags) 1476madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1415 PROTOTYPE: $ 1477 ALIAS:
1478 mprotect = 1
1416 CODE: 1479 CODE:
1480{
1481 STRLEN svlen;
1482 void *addr = SvPVbyte (scalar, svlen);
1483 size_t len = SvUV (length);
1484
1485 if (offset < 0)
1486 offset += svlen;
1487
1488 if (offset < 0 || offset > svlen)
1489 croak ("offset outside of scalar");
1490
1491 if (!SvOK (length) || len + offset > svlen)
1492 len = svlen - offset;
1493
1494 addr = (void *)(((intptr_t)addr) + offset);
1495 eio_page_align (&addr, &len);
1496
1497 switch (ix)
1498 {
1499 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1500 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1501 }
1502}
1503 OUTPUT:
1504 RETVAL
1505
1506int
1507munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1508 CODE:
1509{
1510 STRLEN svlen;
1511 void *addr = SvPVbyte (scalar, svlen);
1512 size_t len = SvUV (length);
1513
1514 if (offset < 0)
1515 offset += svlen;
1516
1517 if (offset < 0 || offset > svlen)
1518 croak ("offset outside of scalar");
1519
1520 if (!SvOK (length) || len + offset > svlen)
1521 len = svlen - offset;
1522
1523 addr = (void *)(((intptr_t)addr) + offset);
1524 eio_page_align (&addr, &len);
1417#if _POSIX_MEMLOCK 1525#if _POSIX_MEMLOCK
1418#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1526 RETVAL = munlock (addr, len);
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 1527#else
1424 RETVAL = -1; 1528 RETVAL = ((errno = ENOSYS), -1);
1425 errno = ENOSYS;
1426#endif 1529#endif
1530}
1427 OUTPUT: 1531 OUTPUT:
1428 RETVAL 1532 RETVAL
1429 1533
1430int 1534int
1431munlockall () 1535munlockall ()
1432 PROTOTYPE:
1433 CODE: 1536 CODE:
1434#if _POSIX_MEMLOCK 1537#if _POSIX_MEMLOCK
1435 munlockall (); 1538 munlockall ();
1436#else 1539#else
1437 RETVAL = -1; 1540 RETVAL = -1;

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