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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.165 by root, Sun May 9 20:42:55 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
… …
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;
316 static SV *sv_result_cache; /* caches the result integer SV */ 346 static SV *sv_result_cache; /* caches the result integer SV */
317 SV *sv_result; 347 SV *sv_result;
318 348
319 ENTER; 349 ENTER;
320 SAVETMPS; 350 SAVETMPS;
… …
497 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
498 PUSHs (sv_result); 528 PUSHs (sv_result);
499 } 529 }
500 break; 530 break;
501 531
502 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
503 if (req->result > 0) 533 if (req->result > 0)
504 SvIV_set (sv_result, 0); 534 SvIV_set (sv_result, 0);
505 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
506 536
507 default: 537 default:
… …
607/*****************************************************************************/ 637/*****************************************************************************/
608 638
609#if !_POSIX_MAPPED_FILES 639#if !_POSIX_MAPPED_FILES
610# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
611# define munmap(addr,length) (errno = ENOSYS, -1) 641# define munmap(addr,length) (errno = ENOSYS, -1)
642# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
612#endif 643#endif
613 644
614#define MMAP_MAGIC PERL_MAGIC_ext 645#define MMAP_MAGIC PERL_MAGIC_ext
615 646
616static int 647static int
… …
621 errno = old_errno; 652 errno = old_errno;
622 653
623 mg->mg_obj = 0; /* just in case */ 654 mg->mg_obj = 0; /* just in case */
624 655
625 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
626 SvCUR_set (sv, 0); 661 SvCUR_set (sv, 0);
627 SvLEN_set (sv, 0);
628 SvPVX (sv) = 0; 662 SvPVX (sv) = 0;
629 SvOK_off (sv); 663 SvOK_off (sv);
630 664
631 return 0; 665 return 0;
632} 666}
… …
697 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 731 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
698 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 732 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
699 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 733 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
700 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 734 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
701 735
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
702 const_iv (ST_RDONLY) 742 const_iv (ST_RDONLY)
703 const_iv (ST_NOSUID) 743 const_iv (ST_NOSUID)
704 const_iv (ST_NODEV) 744 const_iv (ST_NODEV)
705 const_iv (ST_NOEXEC) 745 const_iv (ST_NOEXEC)
706 const_iv (ST_SYNCHRONOUS) 746 const_iv (ST_SYNCHRONOUS)
… …
710 const_iv (ST_IMMUTABLE) 750 const_iv (ST_IMMUTABLE)
711 const_iv (ST_NOATIME) 751 const_iv (ST_NOATIME)
712 const_iv (ST_NODIRATIME) 752 const_iv (ST_NODIRATIME)
713 const_iv (ST_RELATIME) 753 const_iv (ST_RELATIME)
714 754
755 const_iv (PROT_NONE)
715 const_iv (PROT_EXEC) 756 const_iv (PROT_EXEC)
716 const_iv (PROT_NONE)
717 const_iv (PROT_READ) 757 const_iv (PROT_READ)
718 const_iv (PROT_WRITE) 758 const_iv (PROT_WRITE)
719 759
720 /*const_iv (MAP_FIXED)*/ 760 /*const_iv (MAP_FIXED)*/
721 const_iv (MAP_PRIVATE) 761 const_iv (MAP_PRIVATE)
… …
727 const_iv (MAP_LOCKED) 767 const_iv (MAP_LOCKED)
728 const_iv (MAP_NORESERVE) 768 const_iv (MAP_NORESERVE)
729 const_iv (MAP_POPULATE) 769 const_iv (MAP_POPULATE)
730 const_iv (MAP_NONBLOCK) 770 const_iv (MAP_NONBLOCK)
731 771
732 const_iv (MCL_FUTURE) 772 const_eio (MCL_FUTURE)
733 const_iv (MCL_CURRENT) 773 const_eio (MCL_CURRENT)
734 774
735 const_eio (MS_ASYNC) 775 const_eio (MS_ASYNC)
736 const_eio (MS_INVALIDATE) 776 const_eio (MS_INVALIDATE)
737 const_eio (MS_SYNC) 777 const_eio (MS_SYNC)
738 778
… …
812 CODE: 852 CODE:
813 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
814 854
815void 855void
816aio_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)
817 PROTOTYPE: $$$;$
818 PPCODE: 857 PPCODE:
819{ 858{
820 dREQ; 859 dREQ;
821 860
822 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
… …
828 REQ_SEND; 867 REQ_SEND;
829} 868}
830 869
831void 870void
832aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
833 PROTOTYPE: $;$
834 ALIAS: 872 ALIAS:
835 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
836 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
837 PPCODE: 875 PPCODE:
838{ 876{
… …
846 REQ_SEND (req); 884 REQ_SEND (req);
847} 885}
848 886
849void 887void
850aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 888aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
851 PROTOTYPE: $$$$;$
852 PPCODE: 889 PPCODE:
853{ 890{
854 int fd = s_fileno_croak (fh, 0); 891 int fd = s_fileno_croak (fh, 0);
855 dREQ; 892 dREQ;
856 893
… …
864 REQ_SEND (req); 901 REQ_SEND (req);
865} 902}
866 903
867void 904void
868aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
869 PROTOTYPE: $;$
870 PPCODE: 906 PPCODE:
871{ 907{
872 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 908 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
873 int fd = s_fileno_croak (fh, 0); 909 int fd = s_fileno_croak (fh, 0);
874 dREQ; 910 dREQ;
… …
896void 932void
897aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 933aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
898 ALIAS: 934 ALIAS:
899 aio_read = EIO_READ 935 aio_read = EIO_READ
900 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
901 PROTOTYPE: $$$$$;$
902 PPCODE: 937 PPCODE:
903{ 938{
904 STRLEN svlen; 939 STRLEN svlen;
905 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
906 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
… …
947 } 982 }
948} 983}
949 984
950void 985void
951aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
952 PROTOTYPE: $$;$
953 PPCODE: 987 PPCODE:
954{ 988{
955 SV *data; 989 SV *data;
956 dREQ; 990 dREQ;
957 991
… …
962 REQ_SEND; 996 REQ_SEND;
963} 997}
964 998
965void 999void
966aio_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)
967 PROTOTYPE: $$$$;$
968 PPCODE: 1001 PPCODE:
969{ 1002{
970 int ifd = s_fileno_croak (in_fh , 0); 1003 int ifd = s_fileno_croak (in_fh , 0);
971 int ofd = s_fileno_croak (out_fh, 1); 1004 int ofd = s_fileno_croak (out_fh, 1);
972 dREQ; 1005 dREQ;
… …
982 REQ_SEND; 1015 REQ_SEND;
983} 1016}
984 1017
985void 1018void
986aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
987 PROTOTYPE: $$$;$
988 PPCODE: 1020 PPCODE:
989{ 1021{
990 int fd = s_fileno_croak (fh, 0); 1022 int fd = s_fileno_croak (fh, 0);
991 dREQ; 1023 dREQ;
992 1024
… …
1193void 1225void
1194aio_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)
1195 ALIAS: 1227 ALIAS:
1196 aio_mtouch = EIO_MTOUCH 1228 aio_mtouch = EIO_MTOUCH
1197 aio_msync = EIO_MSYNC 1229 aio_msync = EIO_MSYNC
1198 PROTOTYPE: $$$$;$
1199 PPCODE: 1230 PPCODE:
1200{ 1231{
1201 STRLEN svlen; 1232 STRLEN svlen;
1233 char *svptr = SvPVbyte (data, svlen);
1202 UV len = SvUV (length); 1234 UV len = SvUV (length);
1203 char *svptr = SvPVbyte (data, svlen);
1204 1235
1205 if (offset < 0) 1236 if (offset < 0)
1206 offset += svlen; 1237 offset += svlen;
1207 1238
1208 if (offset < 0 || offset > svlen) 1239 if (offset < 0 || offset > svlen)
… …
1213 1244
1214 { 1245 {
1215 dREQ; 1246 dREQ;
1216 1247
1217 req->type = ix; 1248 req->type = ix;
1218 req->size = len;
1219 req->sv2 = SvREFCNT_inc (data); 1249 req->sv2 = SvREFCNT_inc (data);
1220 req->ptr2 = (char *)svptr + offset; 1250 req->ptr2 = (char *)svptr + offset;
1251 req->size = len;
1221 req->int1 = flags; 1252 req->int1 = flags;
1222 1253
1223 REQ_SEND; 1254 REQ_SEND;
1224 } 1255 }
1225} 1256}
1226 1257
1227void 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
1228aio_busy (double delay, SV *callback=&PL_sv_undef) 1301aio_busy (double delay, SV *callback=&PL_sv_undef)
1229 PPCODE: 1302 PPCODE:
1230{ 1303{
1231 dREQ; 1304 dREQ;
1232 1305
… …
1236 REQ_SEND; 1309 REQ_SEND;
1237} 1310}
1238 1311
1239void 1312void
1240aio_group (SV *callback=&PL_sv_undef) 1313aio_group (SV *callback=&PL_sv_undef)
1241 PROTOTYPE: ;$
1242 PPCODE: 1314 PPCODE:
1243{ 1315{
1244 dREQ; 1316 dREQ;
1245 1317
1246 req->type = EIO_GROUP; 1318 req->type = EIO_GROUP;
… …
1263 REQ_SEND; 1335 REQ_SEND;
1264} 1336}
1265 1337
1266int 1338int
1267aioreq_pri (int pri = 0) 1339aioreq_pri (int pri = 0)
1268 PROTOTYPE: ;$
1269 CODE: 1340 CODE:
1270 RETVAL = next_pri; 1341 RETVAL = next_pri;
1271 if (items > 0) 1342 if (items > 0)
1272 { 1343 {
1273 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1344 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1285 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1356 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1286 next_pri = nice; 1357 next_pri = nice;
1287 1358
1288void 1359void
1289flush () 1360flush ()
1290 PROTOTYPE:
1291 CODE: 1361 CODE:
1292 while (eio_nreqs ()) 1362 while (eio_nreqs ())
1293 { 1363 {
1294 poll_wait (); 1364 poll_wait ();
1295 poll_cb (); 1365 poll_cb ();
1296 } 1366 }
1297 1367
1298int 1368int
1299poll() 1369poll ()
1300 PROTOTYPE:
1301 CODE: 1370 CODE:
1302 poll_wait (); 1371 poll_wait ();
1303 RETVAL = poll_cb (); 1372 RETVAL = poll_cb ();
1304 OUTPUT: 1373 OUTPUT:
1305 RETVAL 1374 RETVAL
1306 1375
1307int 1376int
1308poll_fileno() 1377poll_fileno ()
1309 PROTOTYPE:
1310 CODE: 1378 CODE:
1311 RETVAL = s_epipe_fd (&respipe); 1379 RETVAL = s_epipe_fd (&respipe);
1312 OUTPUT: 1380 OUTPUT:
1313 RETVAL 1381 RETVAL
1314 1382
1315int 1383int
1316poll_cb(...) 1384poll_cb (...)
1317 PROTOTYPE: 1385 PROTOTYPE:
1318 CODE: 1386 CODE:
1319 RETVAL = poll_cb (); 1387 RETVAL = poll_cb ();
1320 OUTPUT: 1388 OUTPUT:
1321 RETVAL 1389 RETVAL
1322 1390
1323void 1391void
1324poll_wait() 1392poll_wait ()
1325 PROTOTYPE:
1326 CODE: 1393 CODE:
1327 poll_wait (); 1394 poll_wait ();
1328 1395
1329int 1396int
1330nreqs() 1397nreqs ()
1331 PROTOTYPE:
1332 CODE: 1398 CODE:
1333 RETVAL = eio_nreqs (); 1399 RETVAL = eio_nreqs ();
1334 OUTPUT: 1400 OUTPUT:
1335 RETVAL 1401 RETVAL
1336 1402
1337int 1403int
1338nready() 1404nready ()
1339 PROTOTYPE:
1340 CODE: 1405 CODE:
1341 RETVAL = eio_nready (); 1406 RETVAL = eio_nready ();
1342 OUTPUT: 1407 OUTPUT:
1343 RETVAL 1408 RETVAL
1344 1409
1345int 1410int
1346npending() 1411npending ()
1347 PROTOTYPE:
1348 CODE: 1412 CODE:
1349 RETVAL = eio_npending (); 1413 RETVAL = eio_npending ();
1350 OUTPUT: 1414 OUTPUT:
1351 RETVAL 1415 RETVAL
1352 1416
1353int 1417int
1354nthreads() 1418nthreads ()
1355 PROTOTYPE:
1356 CODE: 1419 CODE:
1357 RETVAL = eio_nthreads (); 1420 RETVAL = eio_nthreads ();
1358 OUTPUT: 1421 OUTPUT:
1359 RETVAL 1422 RETVAL
1360 1423
1361int 1424int
1362fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1425fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1363 PROTOTYPE: $$$$
1364 CODE: 1426 CODE:
1365#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1366 RETVAL = posix_fadvise (fh, offset, length, advice); 1427 RETVAL = posix_fadvise (fh, offset, length, advice);
1367#else
1368 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1369#endif
1370 OUTPUT: 1428 OUTPUT:
1371 RETVAL 1429 RETVAL
1372 1430
1373ssize_t 1431ssize_t
1374sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1432sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1375 PROTOTYPE: $$$$
1376 CODE: 1433 CODE:
1377 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1434 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1378 OUTPUT: 1435 OUTPUT:
1379 RETVAL 1436 RETVAL
1380 1437
1381void 1438void
1382mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1439mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1383 PROTOTYPE: $$$$$;$
1384 PPCODE: 1440 PPCODE:
1385 sv_unmagic (scalar, MMAP_MAGIC); 1441 sv_unmagic (scalar, MMAP_MAGIC);
1386{ 1442{
1387 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;
1388 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1444 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389 if (addr == (void *)-1) 1445 if (addr == (void *)-1)
1390 XSRETURN_NO; 1446 XSRETURN_NO;
1391 1447
1448 sv_force_normal (scalar);
1449
1392 /* we store the length in mg_obj, as namlen is I32 :/ */ 1450 /* we store the length in mg_obj, as namlen is I32 :/ */
1393 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1451 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394 ->mg_obj = (SV *)length; 1452 ->mg_obj = (SV *)length;
1395 1453
1396 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1454 SvUPGRADE (scalar, SVt_PV); /* nop... */
1455
1397 if (!(prot & PROT_WRITE)) 1456 if (!(prot & PROT_WRITE))
1398 SvREADONLY_on (scalar); 1457 SvREADONLY_on (scalar);
1458
1459 if (SvLEN (scalar))
1460 Safefree (SvPVX (scalar));
1399 1461
1400 SvPVX (scalar) = (char *)addr; 1462 SvPVX (scalar) = (char *)addr;
1401 SvCUR_set (scalar, length); 1463 SvCUR_set (scalar, length);
1402 SvLEN_set (scalar, 0); 1464 SvLEN_set (scalar, 0);
1403 SvPOK_only (scalar); 1465 SvPOK_only (scalar);
… …
1405 XSRETURN_YES; 1467 XSRETURN_YES;
1406} 1468}
1407 1469
1408void 1470void
1409munmap (SV *scalar) 1471munmap (SV *scalar)
1410 PROTOTYPE: $
1411 CODE: 1472 CODE:
1412 sv_unmagic (scalar, MMAP_MAGIC); 1473 sv_unmagic (scalar, MMAP_MAGIC);
1413 1474
1414int 1475int
1415mlockall (int flags) 1476madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1416 PROTOTYPE: $ 1477 ALIAS:
1478 mprotect = 1
1417 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);
1418#if _POSIX_MEMLOCK 1525#if _POSIX_MEMLOCK
1419#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1526 RETVAL = munlock (addr, len);
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 1527#else
1425 RETVAL = -1; 1528 RETVAL = ((errno = ENOSYS), -1);
1426 errno = ENOSYS;
1427#endif 1529#endif
1530}
1428 OUTPUT: 1531 OUTPUT:
1429 RETVAL 1532 RETVAL
1430 1533
1431int 1534int
1432munlockall () 1535munlockall ()
1433 PROTOTYPE:
1434 CODE: 1536 CODE:
1435#if _POSIX_MEMLOCK 1537#if _POSIX_MEMLOCK
1436 munlockall (); 1538 munlockall ();
1437#else 1539#else
1438 RETVAL = -1; 1540 RETVAL = -1;

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