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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.167 by root, Sun May 9 20:49:52 2010 UTC vs.
Revision 1.176 by root, Thu Dec 2 10:04:47 2010 UTC

… …
118 STRLEN stroffset; \ 118 STRLEN stroffset; \
119 SV *self; 119 SV *self;
120 120
121#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
122 122
123#include "libeio/config.h"
123#include "libeio/eio.h" 124#include "libeio/eio.h"
124 125
125#ifndef POSIX_FADV_NORMAL 126#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0 127# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif 128#endif
129#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
131#endif 131#endif
132#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
… …
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 !HAVE_POSIX_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#endif
152#ifndef POSIX_MADV_SEQUENTIAL
153# define POSIX_MADV_SEQUENTIAL 0
154#endif
155#ifndef POSIX_MADV_RANDOM
156# define POSIX_MADV_RANDOM 0
157#endif
158#ifndef POSIX_MADV_WILLNEED
159# define POSIX_MADV_WILLNEED 0
160#endif
161#ifndef POSIX_MADV_DONTNEED
162# define POSIX_MADV_DONTNEED 0
163#endif
164
165#if !HAVE_POSIX_MADVISE
166# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167#endif
168
169#ifndef PROT_NONE
170# define PROT_NONE 0
171#endif
172#ifndef PROT_READ
173# define PROT_READ 0
174#endif
175#ifndef PROT_WRITE
176# define PROT_READ 0
177#endif
178#ifndef PROT_EXEC
179# define PROT_EXEC 0
180#endif
181
145#ifndef ST_NODEV 182#ifndef ST_NODEV
146# define ST_NODEV 0 183# define ST_NODEV 0
147#endif 184#endif
148#ifndef ST_NOEXEC 185#ifndef ST_NOEXEC
149# define ST_NOEXEC 0 186# define ST_NOEXEC 0
… …
169#ifndef ST_NODIRATIME 206#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0 207# define ST_NODIRATIME 0
171#endif 208#endif
172#ifndef ST_RELATIME 209#ifndef ST_RELATIME
173# define ST_RELATIME 0 210# 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 211#endif
182 212
183#ifndef MAP_ANONYMOUS 213#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON 214# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON 215# define MAP_ANONYMOUS MAP_ANON
… …
606/*****************************************************************************/ 636/*****************************************************************************/
607 637
608#if !_POSIX_MAPPED_FILES 638#if !_POSIX_MAPPED_FILES
609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 639# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610# define munmap(addr,length) (errno = ENOSYS, -1) 640# define munmap(addr,length) (errno = ENOSYS, -1)
641# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
642# define PROT_NONE 0
643# define PROT_WRITE 0
644# define MAP_PRIVATE 0
645# define MAP_SHARED 0
646# define MAP_FIXED 0
611#endif 647#endif
612 648
613#define MMAP_MAGIC PERL_MAGIC_ext 649#define MMAP_MAGIC PERL_MAGIC_ext
614 650
615static int 651static int
… …
620 errno = old_errno; 656 errno = old_errno;
621 657
622 mg->mg_obj = 0; /* just in case */ 658 mg->mg_obj = 0; /* just in case */
623 659
624 SvREADONLY_off (sv); 660 SvREADONLY_off (sv);
661
662 if (SvPVX (sv) != mg->mg_ptr)
663 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
664
625 SvCUR_set (sv, 0); 665 SvCUR_set (sv, 0);
626 SvLEN_set (sv, 0);
627 SvPVX (sv) = 0; 666 SvPVX (sv) = 0;
628 SvOK_off (sv); 667 SvOK_off (sv);
629 668
630 return 0; 669 return 0;
631} 670}
… …
696 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 735 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
697 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 736 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
698 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 737 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
699 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 738 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
700 739
740 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
741 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
742 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
743 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
744 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
745
701 const_iv (ST_RDONLY) 746 const_iv (ST_RDONLY)
702 const_iv (ST_NOSUID) 747 const_iv (ST_NOSUID)
703 const_iv (ST_NODEV) 748 const_iv (ST_NODEV)
704 const_iv (ST_NOEXEC) 749 const_iv (ST_NOEXEC)
705 const_iv (ST_SYNCHRONOUS) 750 const_iv (ST_SYNCHRONOUS)
… …
709 const_iv (ST_IMMUTABLE) 754 const_iv (ST_IMMUTABLE)
710 const_iv (ST_NOATIME) 755 const_iv (ST_NOATIME)
711 const_iv (ST_NODIRATIME) 756 const_iv (ST_NODIRATIME)
712 const_iv (ST_RELATIME) 757 const_iv (ST_RELATIME)
713 758
759 const_iv (PROT_NONE)
714 const_iv (PROT_EXEC) 760 const_iv (PROT_EXEC)
715 const_iv (PROT_NONE)
716 const_iv (PROT_READ) 761 const_iv (PROT_READ)
717 const_iv (PROT_WRITE) 762 const_iv (PROT_WRITE)
718 763
719 /*const_iv (MAP_FIXED)*/ 764 /*const_iv (MAP_FIXED)*/
720 const_iv (MAP_PRIVATE) 765 const_iv (MAP_PRIVATE)
… …
726 const_iv (MAP_LOCKED) 771 const_iv (MAP_LOCKED)
727 const_iv (MAP_NORESERVE) 772 const_iv (MAP_NORESERVE)
728 const_iv (MAP_POPULATE) 773 const_iv (MAP_POPULATE)
729 const_iv (MAP_NONBLOCK) 774 const_iv (MAP_NONBLOCK)
730 775
731 const_iv (MCL_FUTURE) 776 const_eio (MCL_FUTURE)
732 const_iv (MCL_CURRENT) 777 const_eio (MCL_CURRENT)
733 778
734 const_eio (MS_ASYNC) 779 const_eio (MS_ASYNC)
735 const_eio (MS_INVALIDATE) 780 const_eio (MS_INVALIDATE)
736 const_eio (MS_SYNC) 781 const_eio (MS_SYNC)
737 782
… …
811 CODE: 856 CODE:
812 max_outstanding = maxreqs; 857 max_outstanding = maxreqs;
813 858
814void 859void
815aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 860aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
816 PROTOTYPE: $$$;$
817 PPCODE: 861 PPCODE:
818{ 862{
819 dREQ; 863 dREQ;
820 864
821 req->type = EIO_OPEN; 865 req->type = EIO_OPEN;
… …
827 REQ_SEND; 871 REQ_SEND;
828} 872}
829 873
830void 874void
831aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 875aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
832 PROTOTYPE: $;$
833 ALIAS: 876 ALIAS:
834 aio_fsync = EIO_FSYNC 877 aio_fsync = EIO_FSYNC
835 aio_fdatasync = EIO_FDATASYNC 878 aio_fdatasync = EIO_FDATASYNC
836 PPCODE: 879 PPCODE:
837{ 880{
… …
845 REQ_SEND (req); 888 REQ_SEND (req);
846} 889}
847 890
848void 891void
849aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 892aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
850 PROTOTYPE: $$$$;$
851 PPCODE: 893 PPCODE:
852{ 894{
853 int fd = s_fileno_croak (fh, 0); 895 int fd = s_fileno_croak (fh, 0);
854 dREQ; 896 dREQ;
855 897
… …
863 REQ_SEND (req); 905 REQ_SEND (req);
864} 906}
865 907
866void 908void
867aio_close (SV *fh, SV *callback=&PL_sv_undef) 909aio_close (SV *fh, SV *callback=&PL_sv_undef)
868 PROTOTYPE: $;$
869 PPCODE: 910 PPCODE:
870{ 911{
871 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 912 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872 int fd = s_fileno_croak (fh, 0); 913 int fd = s_fileno_croak (fh, 0);
873 dREQ; 914 dREQ;
… …
895void 936void
896aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 937aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
897 ALIAS: 938 ALIAS:
898 aio_read = EIO_READ 939 aio_read = EIO_READ
899 aio_write = EIO_WRITE 940 aio_write = EIO_WRITE
900 PROTOTYPE: $$$$$;$
901 PPCODE: 941 PPCODE:
902{ 942{
903 STRLEN svlen; 943 STRLEN svlen;
904 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 944 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
905 char *svptr = SvPVbyte (data, svlen); 945 char *svptr = SvPVbyte (data, svlen);
… …
946 } 986 }
947} 987}
948 988
949void 989void
950aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 990aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
951 PROTOTYPE: $$;$
952 PPCODE: 991 PPCODE:
953{ 992{
954 SV *data; 993 SV *data;
955 dREQ; 994 dREQ;
956 995
… …
961 REQ_SEND; 1000 REQ_SEND;
962} 1001}
963 1002
964void 1003void
965aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1004aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
966 PROTOTYPE: $$$$;$
967 PPCODE: 1005 PPCODE:
968{ 1006{
969 int ifd = s_fileno_croak (in_fh , 0); 1007 int ifd = s_fileno_croak (in_fh , 0);
970 int ofd = s_fileno_croak (out_fh, 1); 1008 int ofd = s_fileno_croak (out_fh, 1);
971 dREQ; 1009 dREQ;
… …
981 REQ_SEND; 1019 REQ_SEND;
982} 1020}
983 1021
984void 1022void
985aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1023aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
986 PROTOTYPE: $$$;$
987 PPCODE: 1024 PPCODE:
988{ 1025{
989 int fd = s_fileno_croak (fh, 0); 1026 int fd = s_fileno_croak (fh, 0);
990 dREQ; 1027 dREQ;
991 1028
… …
1192void 1229void
1193aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1230aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1194 ALIAS: 1231 ALIAS:
1195 aio_mtouch = EIO_MTOUCH 1232 aio_mtouch = EIO_MTOUCH
1196 aio_msync = EIO_MSYNC 1233 aio_msync = EIO_MSYNC
1197 PROTOTYPE: $$$$;$
1198 PPCODE: 1234 PPCODE:
1199{ 1235{
1200 STRLEN svlen; 1236 STRLEN svlen;
1237 char *svptr = SvPVbyte (data, svlen);
1201 UV len = SvUV (length); 1238 UV len = SvUV (length);
1202 char *svptr = SvPVbyte (data, svlen);
1203 1239
1204 if (offset < 0) 1240 if (offset < 0)
1205 offset += svlen; 1241 offset += svlen;
1206 1242
1207 if (offset < 0 || offset > svlen) 1243 if (offset < 0 || offset > svlen)
… …
1212 1248
1213 { 1249 {
1214 dREQ; 1250 dREQ;
1215 1251
1216 req->type = ix; 1252 req->type = ix;
1217 req->size = len;
1218 req->sv2 = SvREFCNT_inc (data); 1253 req->sv2 = SvREFCNT_inc (data);
1219 req->ptr2 = (char *)svptr + offset; 1254 req->ptr2 = (char *)svptr + offset;
1255 req->size = len;
1220 req->int1 = flags; 1256 req->int1 = flags;
1221 1257
1222 REQ_SEND; 1258 REQ_SEND;
1223 } 1259 }
1224} 1260}
1225 1261
1226void 1262void
1263aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1264 PPCODE:
1265{
1266 STRLEN svlen;
1267 char *svptr = SvPVbyte (data, svlen);
1268 UV len = SvUV (length);
1269
1270 if (offset < 0)
1271 offset += svlen;
1272
1273 if (offset < 0 || offset > svlen)
1274 croak ("offset outside of scalar");
1275
1276 if (!SvOK (length) || len + offset > svlen)
1277 len = svlen - offset;
1278
1279 {
1280 dREQ;
1281
1282 req->type = EIO_MLOCK;
1283 req->sv2 = SvREFCNT_inc (data);
1284 req->ptr2 = (char *)svptr + offset;
1285 req->size = len;
1286
1287 REQ_SEND;
1288 }
1289}
1290
1291void
1292aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1293 PPCODE:
1294{
1295 dREQ;
1296
1297 req->type = EIO_MLOCKALL;
1298 req->int1 = flags;
1299
1300 REQ_SEND;
1301}
1302
1303void
1227aio_busy (double delay, SV *callback=&PL_sv_undef) 1304aio_busy (double delay, SV *callback=&PL_sv_undef)
1228 PPCODE: 1305 PPCODE:
1229{ 1306{
1230 dREQ; 1307 dREQ;
1231 1308
… …
1235 REQ_SEND; 1312 REQ_SEND;
1236} 1313}
1237 1314
1238void 1315void
1239aio_group (SV *callback=&PL_sv_undef) 1316aio_group (SV *callback=&PL_sv_undef)
1240 PROTOTYPE: ;$
1241 PPCODE: 1317 PPCODE:
1242{ 1318{
1243 dREQ; 1319 dREQ;
1244 1320
1245 req->type = EIO_GROUP; 1321 req->type = EIO_GROUP;
… …
1262 REQ_SEND; 1338 REQ_SEND;
1263} 1339}
1264 1340
1265int 1341int
1266aioreq_pri (int pri = 0) 1342aioreq_pri (int pri = 0)
1267 PROTOTYPE: ;$
1268 CODE: 1343 CODE:
1269 RETVAL = next_pri; 1344 RETVAL = next_pri;
1270 if (items > 0) 1345 if (items > 0)
1271 { 1346 {
1272 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1347 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1284 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1359 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1285 next_pri = nice; 1360 next_pri = nice;
1286 1361
1287void 1362void
1288flush () 1363flush ()
1289 PROTOTYPE:
1290 CODE: 1364 CODE:
1291 while (eio_nreqs ()) 1365 while (eio_nreqs ())
1292 { 1366 {
1293 poll_wait (); 1367 poll_wait ();
1294 poll_cb (); 1368 poll_cb ();
1295 } 1369 }
1296 1370
1297int 1371int
1298poll() 1372poll ()
1299 PROTOTYPE:
1300 CODE: 1373 CODE:
1301 poll_wait (); 1374 poll_wait ();
1302 RETVAL = poll_cb (); 1375 RETVAL = poll_cb ();
1303 OUTPUT: 1376 OUTPUT:
1304 RETVAL 1377 RETVAL
1305 1378
1306int 1379int
1307poll_fileno() 1380poll_fileno ()
1308 PROTOTYPE:
1309 CODE: 1381 CODE:
1310 RETVAL = s_epipe_fd (&respipe); 1382 RETVAL = s_epipe_fd (&respipe);
1311 OUTPUT: 1383 OUTPUT:
1312 RETVAL 1384 RETVAL
1313 1385
1314int 1386int
1315poll_cb(...) 1387poll_cb (...)
1316 PROTOTYPE: 1388 PROTOTYPE:
1317 CODE: 1389 CODE:
1318 RETVAL = poll_cb (); 1390 RETVAL = poll_cb ();
1319 OUTPUT: 1391 OUTPUT:
1320 RETVAL 1392 RETVAL
1321 1393
1322void 1394void
1323poll_wait() 1395poll_wait ()
1324 PROTOTYPE:
1325 CODE: 1396 CODE:
1326 poll_wait (); 1397 poll_wait ();
1327 1398
1328int 1399int
1329nreqs() 1400nreqs ()
1330 PROTOTYPE:
1331 CODE: 1401 CODE:
1332 RETVAL = eio_nreqs (); 1402 RETVAL = eio_nreqs ();
1333 OUTPUT: 1403 OUTPUT:
1334 RETVAL 1404 RETVAL
1335 1405
1336int 1406int
1337nready() 1407nready ()
1338 PROTOTYPE:
1339 CODE: 1408 CODE:
1340 RETVAL = eio_nready (); 1409 RETVAL = eio_nready ();
1341 OUTPUT: 1410 OUTPUT:
1342 RETVAL 1411 RETVAL
1343 1412
1344int 1413int
1345npending() 1414npending ()
1346 PROTOTYPE:
1347 CODE: 1415 CODE:
1348 RETVAL = eio_npending (); 1416 RETVAL = eio_npending ();
1349 OUTPUT: 1417 OUTPUT:
1350 RETVAL 1418 RETVAL
1351 1419
1352int 1420int
1353nthreads() 1421nthreads ()
1354 PROTOTYPE:
1355 CODE: 1422 CODE:
1356 RETVAL = eio_nthreads (); 1423 RETVAL = eio_nthreads ();
1357 OUTPUT: 1424 OUTPUT:
1358 RETVAL 1425 RETVAL
1359 1426
1360int 1427int
1361fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1428fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1362 PROTOTYPE: $$$$
1363 CODE: 1429 CODE:
1364#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1365 RETVAL = posix_fadvise (fh, offset, length, advice); 1430 RETVAL = posix_fadvise (fh, offset, length, advice);
1366#else
1367 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1368#endif
1369 OUTPUT: 1431 OUTPUT:
1370 RETVAL 1432 RETVAL
1371 1433
1372ssize_t 1434ssize_t
1373sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1435sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1374 PROTOTYPE: $$$$
1375 CODE: 1436 CODE:
1376 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1437 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1377 OUTPUT: 1438 OUTPUT:
1378 RETVAL 1439 RETVAL
1379 1440
1380void 1441void
1381mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1442mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382 PROTOTYPE: $$$$$;$
1383 PPCODE: 1443 PPCODE:
1384 sv_unmagic (scalar, MMAP_MAGIC); 1444 sv_unmagic (scalar, MMAP_MAGIC);
1385{ 1445{
1386 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1446 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1447 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388 if (addr == (void *)-1) 1448 if (addr == (void *)-1)
1389 XSRETURN_NO; 1449 XSRETURN_NO;
1390 1450
1451 sv_force_normal (scalar);
1452
1391 /* we store the length in mg_obj, as namlen is I32 :/ */ 1453 /* we store the length in mg_obj, as namlen is I32 :/ */
1392 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1454 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393 ->mg_obj = (SV *)length; 1455 ->mg_obj = (SV *)length;
1394 1456
1395 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1457 SvUPGRADE (scalar, SVt_PV); /* nop... */
1458
1396 if (!(prot & PROT_WRITE)) 1459 if (!(prot & PROT_WRITE))
1397 SvREADONLY_on (scalar); 1460 SvREADONLY_on (scalar);
1461
1462 if (SvLEN (scalar))
1463 Safefree (SvPVX (scalar));
1398 1464
1399 SvPVX (scalar) = (char *)addr; 1465 SvPVX (scalar) = (char *)addr;
1400 SvCUR_set (scalar, length); 1466 SvCUR_set (scalar, length);
1401 SvLEN_set (scalar, 0); 1467 SvLEN_set (scalar, 0);
1402 SvPOK_only (scalar); 1468 SvPOK_only (scalar);
… …
1404 XSRETURN_YES; 1470 XSRETURN_YES;
1405} 1471}
1406 1472
1407void 1473void
1408munmap (SV *scalar) 1474munmap (SV *scalar)
1409 PROTOTYPE: $
1410 CODE: 1475 CODE:
1411 sv_unmagic (scalar, MMAP_MAGIC); 1476 sv_unmagic (scalar, MMAP_MAGIC);
1412 1477
1413int 1478int
1414mlockall (int flags) 1479madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1415 PROTOTYPE: $ 1480 ALIAS:
1481 mprotect = 1
1416 CODE: 1482 CODE:
1483{
1484 STRLEN svlen;
1485 void *addr = SvPVbyte (scalar, svlen);
1486 size_t len = SvUV (length);
1487
1488 if (offset < 0)
1489 offset += svlen;
1490
1491 if (offset < 0 || offset > svlen)
1492 croak ("offset outside of scalar");
1493
1494 if (!SvOK (length) || len + offset > svlen)
1495 len = svlen - offset;
1496
1497 addr = (void *)(((intptr_t)addr) + offset);
1498 eio_page_align (&addr, &len);
1499
1500 switch (ix)
1501 {
1502 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1503 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1504 }
1505}
1506 OUTPUT:
1507 RETVAL
1508
1509int
1510munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1511 CODE:
1512{
1513 STRLEN svlen;
1514 void *addr = SvPVbyte (scalar, svlen);
1515 size_t len = SvUV (length);
1516
1517 if (offset < 0)
1518 offset += svlen;
1519
1520 if (offset < 0 || offset > svlen)
1521 croak ("offset outside of scalar");
1522
1523 if (!SvOK (length) || len + offset > svlen)
1524 len = svlen - offset;
1525
1526 addr = (void *)(((intptr_t)addr) + offset);
1527 eio_page_align (&addr, &len);
1417#if _POSIX_MEMLOCK 1528#if _POSIX_MEMLOCK
1418#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1529 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 1530#else
1424 RETVAL = -1; 1531 RETVAL = ((errno = ENOSYS), -1);
1425 errno = ENOSYS;
1426#endif 1532#endif
1533}
1427 OUTPUT: 1534 OUTPUT:
1428 RETVAL 1535 RETVAL
1429 1536
1430int 1537int
1431munlockall () 1538munlockall ()
1432 PROTOTYPE:
1433 CODE: 1539 CODE:
1434#if _POSIX_MEMLOCK 1540#if _POSIX_MEMLOCK
1435 munlockall (); 1541 munlockall ();
1436#else 1542#else
1437 RETVAL = -1; 1543 RETVAL = -1;

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