ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.168 by root, Wed Aug 4 14:02:58 2010 UTC vs.
Revision 1.177 by root, Thu Dec 30 07:19:31 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
… …
323 /* do not recreate the result IV from scratch each time */ 353 /* do not recreate the result IV from scratch each time */
324 if (expect_true (sv_result_cache)) 354 if (expect_true (sv_result_cache))
325 { 355 {
326 sv_result = sv_result_cache; sv_result_cache = 0; 356 sv_result = sv_result_cache; sv_result_cache = 0;
327 SvIV_set (sv_result, req->result); 357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
328 } 359 }
329 else 360 else
330 { 361 {
331 sv_result = newSViv (req->result); 362 sv_result = newSViv (req->result);
332 SvREADONLY_on (sv_result); 363 SvREADONLY_on (sv_result);
… …
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: /* EIO_DUP2 actually means aio_close(), su fudge result value */ 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so 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)
643# define PROT_NONE 0
644# define PROT_WRITE 0
645# define MAP_PRIVATE 0
646# define MAP_SHARED 0
647# define MAP_FIXED 0
611#endif 648#endif
612 649
613#define MMAP_MAGIC PERL_MAGIC_ext 650#define MMAP_MAGIC PERL_MAGIC_ext
614 651
615static int 652static int
… …
699 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 736 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
700 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 737 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
701 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 738 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
702 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 739 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
703 740
741 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
742 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
743 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
744 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
745 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
746
704 const_iv (ST_RDONLY) 747 const_iv (ST_RDONLY)
705 const_iv (ST_NOSUID) 748 const_iv (ST_NOSUID)
706 const_iv (ST_NODEV) 749 const_iv (ST_NODEV)
707 const_iv (ST_NOEXEC) 750 const_iv (ST_NOEXEC)
708 const_iv (ST_SYNCHRONOUS) 751 const_iv (ST_SYNCHRONOUS)
… …
712 const_iv (ST_IMMUTABLE) 755 const_iv (ST_IMMUTABLE)
713 const_iv (ST_NOATIME) 756 const_iv (ST_NOATIME)
714 const_iv (ST_NODIRATIME) 757 const_iv (ST_NODIRATIME)
715 const_iv (ST_RELATIME) 758 const_iv (ST_RELATIME)
716 759
760 const_iv (PROT_NONE)
717 const_iv (PROT_EXEC) 761 const_iv (PROT_EXEC)
718 const_iv (PROT_NONE)
719 const_iv (PROT_READ) 762 const_iv (PROT_READ)
720 const_iv (PROT_WRITE) 763 const_iv (PROT_WRITE)
721 764
722 /*const_iv (MAP_FIXED)*/ 765 /*const_iv (MAP_FIXED)*/
723 const_iv (MAP_PRIVATE) 766 const_iv (MAP_PRIVATE)
… …
729 const_iv (MAP_LOCKED) 772 const_iv (MAP_LOCKED)
730 const_iv (MAP_NORESERVE) 773 const_iv (MAP_NORESERVE)
731 const_iv (MAP_POPULATE) 774 const_iv (MAP_POPULATE)
732 const_iv (MAP_NONBLOCK) 775 const_iv (MAP_NONBLOCK)
733 776
734 const_iv (MCL_FUTURE) 777 const_eio (MCL_FUTURE)
735 const_iv (MCL_CURRENT) 778 const_eio (MCL_CURRENT)
736 779
737 const_eio (MS_ASYNC) 780 const_eio (MS_ASYNC)
738 const_eio (MS_INVALIDATE) 781 const_eio (MS_INVALIDATE)
739 const_eio (MS_SYNC) 782 const_eio (MS_SYNC)
740 783
… …
814 CODE: 857 CODE:
815 max_outstanding = maxreqs; 858 max_outstanding = maxreqs;
816 859
817void 860void
818aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 861aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
819 PROTOTYPE: $$$;$
820 PPCODE: 862 PPCODE:
821{ 863{
822 dREQ; 864 dREQ;
823 865
824 req->type = EIO_OPEN; 866 req->type = EIO_OPEN;
… …
830 REQ_SEND; 872 REQ_SEND;
831} 873}
832 874
833void 875void
834aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 876aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
835 PROTOTYPE: $;$
836 ALIAS: 877 ALIAS:
837 aio_fsync = EIO_FSYNC 878 aio_fsync = EIO_FSYNC
838 aio_fdatasync = EIO_FDATASYNC 879 aio_fdatasync = EIO_FDATASYNC
839 PPCODE: 880 PPCODE:
840{ 881{
… …
848 REQ_SEND (req); 889 REQ_SEND (req);
849} 890}
850 891
851void 892void
852aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 893aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
853 PROTOTYPE: $$$$;$
854 PPCODE: 894 PPCODE:
855{ 895{
856 int fd = s_fileno_croak (fh, 0); 896 int fd = s_fileno_croak (fh, 0);
857 dREQ; 897 dREQ;
858 898
… …
866 REQ_SEND (req); 906 REQ_SEND (req);
867} 907}
868 908
869void 909void
870aio_close (SV *fh, SV *callback=&PL_sv_undef) 910aio_close (SV *fh, SV *callback=&PL_sv_undef)
871 PROTOTYPE: $;$
872 PPCODE: 911 PPCODE:
873{ 912{
874 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 913 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
875 int fd = s_fileno_croak (fh, 0); 914 int fd = s_fileno_croak (fh, 0);
876 dREQ; 915 dREQ;
… …
898void 937void
899aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 938aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
900 ALIAS: 939 ALIAS:
901 aio_read = EIO_READ 940 aio_read = EIO_READ
902 aio_write = EIO_WRITE 941 aio_write = EIO_WRITE
903 PROTOTYPE: $$$$$;$
904 PPCODE: 942 PPCODE:
905{ 943{
906 STRLEN svlen; 944 STRLEN svlen;
907 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 945 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
908 char *svptr = SvPVbyte (data, svlen); 946 char *svptr = SvPVbyte (data, svlen);
… …
949 } 987 }
950} 988}
951 989
952void 990void
953aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 991aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
954 PROTOTYPE: $$;$
955 PPCODE: 992 PPCODE:
956{ 993{
957 SV *data; 994 SV *data;
958 dREQ; 995 dREQ;
959 996
… …
964 REQ_SEND; 1001 REQ_SEND;
965} 1002}
966 1003
967void 1004void
968aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1005aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
969 PROTOTYPE: $$$$;$
970 PPCODE: 1006 PPCODE:
971{ 1007{
972 int ifd = s_fileno_croak (in_fh , 0); 1008 int ifd = s_fileno_croak (in_fh , 0);
973 int ofd = s_fileno_croak (out_fh, 1); 1009 int ofd = s_fileno_croak (out_fh, 1);
974 dREQ; 1010 dREQ;
… …
984 REQ_SEND; 1020 REQ_SEND;
985} 1021}
986 1022
987void 1023void
988aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1024aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
989 PROTOTYPE: $$$;$
990 PPCODE: 1025 PPCODE:
991{ 1026{
992 int fd = s_fileno_croak (fh, 0); 1027 int fd = s_fileno_croak (fh, 0);
993 dREQ; 1028 dREQ;
994 1029
… …
1195void 1230void
1196aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1231aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1197 ALIAS: 1232 ALIAS:
1198 aio_mtouch = EIO_MTOUCH 1233 aio_mtouch = EIO_MTOUCH
1199 aio_msync = EIO_MSYNC 1234 aio_msync = EIO_MSYNC
1200 PROTOTYPE: $$$$;$
1201 PPCODE: 1235 PPCODE:
1202{ 1236{
1203 STRLEN svlen; 1237 STRLEN svlen;
1238 char *svptr = SvPVbyte (data, svlen);
1204 UV len = SvUV (length); 1239 UV len = SvUV (length);
1205 char *svptr = SvPVbyte (data, svlen);
1206 1240
1207 if (offset < 0) 1241 if (offset < 0)
1208 offset += svlen; 1242 offset += svlen;
1209 1243
1210 if (offset < 0 || offset > svlen) 1244 if (offset < 0 || offset > svlen)
… …
1215 1249
1216 { 1250 {
1217 dREQ; 1251 dREQ;
1218 1252
1219 req->type = ix; 1253 req->type = ix;
1220 req->size = len;
1221 req->sv2 = SvREFCNT_inc (data); 1254 req->sv2 = SvREFCNT_inc (data);
1222 req->ptr2 = (char *)svptr + offset; 1255 req->ptr2 = (char *)svptr + offset;
1256 req->size = len;
1223 req->int1 = flags; 1257 req->int1 = flags;
1224 1258
1225 REQ_SEND; 1259 REQ_SEND;
1226 } 1260 }
1227} 1261}
1228 1262
1229void 1263void
1264aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1265 PPCODE:
1266{
1267 STRLEN svlen;
1268 char *svptr = SvPVbyte (data, svlen);
1269 UV len = SvUV (length);
1270
1271 if (offset < 0)
1272 offset += svlen;
1273
1274 if (offset < 0 || offset > svlen)
1275 croak ("offset outside of scalar");
1276
1277 if (!SvOK (length) || len + offset > svlen)
1278 len = svlen - offset;
1279
1280 {
1281 dREQ;
1282
1283 req->type = EIO_MLOCK;
1284 req->sv2 = SvREFCNT_inc (data);
1285 req->ptr2 = (char *)svptr + offset;
1286 req->size = len;
1287
1288 REQ_SEND;
1289 }
1290}
1291
1292void
1293aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1294 PPCODE:
1295{
1296 dREQ;
1297
1298 req->type = EIO_MLOCKALL;
1299 req->int1 = flags;
1300
1301 REQ_SEND;
1302}
1303
1304void
1230aio_busy (double delay, SV *callback=&PL_sv_undef) 1305aio_busy (double delay, SV *callback=&PL_sv_undef)
1231 PPCODE: 1306 PPCODE:
1232{ 1307{
1233 dREQ; 1308 dREQ;
1234 1309
… …
1238 REQ_SEND; 1313 REQ_SEND;
1239} 1314}
1240 1315
1241void 1316void
1242aio_group (SV *callback=&PL_sv_undef) 1317aio_group (SV *callback=&PL_sv_undef)
1243 PROTOTYPE: ;$
1244 PPCODE: 1318 PPCODE:
1245{ 1319{
1246 dREQ; 1320 dREQ;
1247 1321
1248 req->type = EIO_GROUP; 1322 req->type = EIO_GROUP;
… …
1265 REQ_SEND; 1339 REQ_SEND;
1266} 1340}
1267 1341
1268int 1342int
1269aioreq_pri (int pri = 0) 1343aioreq_pri (int pri = 0)
1270 PROTOTYPE: ;$
1271 CODE: 1344 CODE:
1272 RETVAL = next_pri; 1345 RETVAL = next_pri;
1273 if (items > 0) 1346 if (items > 0)
1274 { 1347 {
1275 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1348 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1287 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1360 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1288 next_pri = nice; 1361 next_pri = nice;
1289 1362
1290void 1363void
1291flush () 1364flush ()
1292 PROTOTYPE:
1293 CODE: 1365 CODE:
1294 while (eio_nreqs ()) 1366 while (eio_nreqs ())
1295 { 1367 {
1296 poll_wait (); 1368 poll_wait ();
1297 poll_cb (); 1369 poll_cb ();
1298 } 1370 }
1299 1371
1300int 1372int
1301poll() 1373poll ()
1302 PROTOTYPE:
1303 CODE: 1374 CODE:
1304 poll_wait (); 1375 poll_wait ();
1305 RETVAL = poll_cb (); 1376 RETVAL = poll_cb ();
1306 OUTPUT: 1377 OUTPUT:
1307 RETVAL 1378 RETVAL
1308 1379
1309int 1380int
1310poll_fileno() 1381poll_fileno ()
1311 PROTOTYPE:
1312 CODE: 1382 CODE:
1313 RETVAL = s_epipe_fd (&respipe); 1383 RETVAL = s_epipe_fd (&respipe);
1314 OUTPUT: 1384 OUTPUT:
1315 RETVAL 1385 RETVAL
1316 1386
1317int 1387int
1318poll_cb(...) 1388poll_cb (...)
1319 PROTOTYPE: 1389 PROTOTYPE:
1320 CODE: 1390 CODE:
1321 RETVAL = poll_cb (); 1391 RETVAL = poll_cb ();
1322 OUTPUT: 1392 OUTPUT:
1323 RETVAL 1393 RETVAL
1324 1394
1325void 1395void
1326poll_wait() 1396poll_wait ()
1327 PROTOTYPE:
1328 CODE: 1397 CODE:
1329 poll_wait (); 1398 poll_wait ();
1330 1399
1331int 1400int
1332nreqs() 1401nreqs ()
1333 PROTOTYPE:
1334 CODE: 1402 CODE:
1335 RETVAL = eio_nreqs (); 1403 RETVAL = eio_nreqs ();
1336 OUTPUT: 1404 OUTPUT:
1337 RETVAL 1405 RETVAL
1338 1406
1339int 1407int
1340nready() 1408nready ()
1341 PROTOTYPE:
1342 CODE: 1409 CODE:
1343 RETVAL = eio_nready (); 1410 RETVAL = eio_nready ();
1344 OUTPUT: 1411 OUTPUT:
1345 RETVAL 1412 RETVAL
1346 1413
1347int 1414int
1348npending() 1415npending ()
1349 PROTOTYPE:
1350 CODE: 1416 CODE:
1351 RETVAL = eio_npending (); 1417 RETVAL = eio_npending ();
1352 OUTPUT: 1418 OUTPUT:
1353 RETVAL 1419 RETVAL
1354 1420
1355int 1421int
1356nthreads() 1422nthreads ()
1357 PROTOTYPE:
1358 CODE: 1423 CODE:
1359 RETVAL = eio_nthreads (); 1424 RETVAL = eio_nthreads ();
1360 OUTPUT: 1425 OUTPUT:
1361 RETVAL 1426 RETVAL
1362 1427
1363int 1428int
1364fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1429fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1365 PROTOTYPE: $$$$
1366 CODE: 1430 CODE:
1367#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1368 RETVAL = posix_fadvise (fh, offset, length, advice); 1431 RETVAL = posix_fadvise (fh, offset, length, advice);
1369#else
1370 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1371#endif
1372 OUTPUT: 1432 OUTPUT:
1373 RETVAL 1433 RETVAL
1374 1434
1375ssize_t 1435ssize_t
1376sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1436sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1377 PROTOTYPE: $$$$
1378 CODE: 1437 CODE:
1379 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1438 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1380 OUTPUT: 1439 OUTPUT:
1381 RETVAL 1440 RETVAL
1382 1441
1383void 1442void
1384mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1443mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1385 PROTOTYPE: $$$$$;$
1386 PPCODE: 1444 PPCODE:
1387 sv_unmagic (scalar, MMAP_MAGIC); 1445 sv_unmagic (scalar, MMAP_MAGIC);
1388{ 1446{
1389 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1447 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1390 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1448 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1413 XSRETURN_YES; 1471 XSRETURN_YES;
1414} 1472}
1415 1473
1416void 1474void
1417munmap (SV *scalar) 1475munmap (SV *scalar)
1418 PROTOTYPE: $
1419 CODE: 1476 CODE:
1420 sv_unmagic (scalar, MMAP_MAGIC); 1477 sv_unmagic (scalar, MMAP_MAGIC);
1421 1478
1422int 1479int
1423mlockall (int flags) 1480madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1424 PROTOTYPE: $ 1481 ALIAS:
1482 mprotect = 1
1425 CODE: 1483 CODE:
1484{
1485 STRLEN svlen;
1486 void *addr = SvPVbyte (scalar, svlen);
1487 size_t len = SvUV (length);
1488
1489 if (offset < 0)
1490 offset += svlen;
1491
1492 if (offset < 0 || offset > svlen)
1493 croak ("offset outside of scalar");
1494
1495 if (!SvOK (length) || len + offset > svlen)
1496 len = svlen - offset;
1497
1498 addr = (void *)(((intptr_t)addr) + offset);
1499 eio_page_align (&addr, &len);
1500
1501 switch (ix)
1502 {
1503 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1504 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1505 }
1506}
1507 OUTPUT:
1508 RETVAL
1509
1510int
1511munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1512 CODE:
1513{
1514 STRLEN svlen;
1515 void *addr = SvPVbyte (scalar, svlen);
1516 size_t len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 addr = (void *)(((intptr_t)addr) + offset);
1528 eio_page_align (&addr, &len);
1426#if _POSIX_MEMLOCK 1529#if _POSIX_MEMLOCK
1427#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1530 RETVAL = munlock (addr, len);
1428 extern int mallopt (int, int);
1429 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1430#endif
1431 mlockall (flags);
1432#else 1531#else
1433 RETVAL = -1; 1532 RETVAL = ((errno = ENOSYS), -1);
1434 errno = ENOSYS;
1435#endif 1533#endif
1534}
1436 OUTPUT: 1535 OUTPUT:
1437 RETVAL 1536 RETVAL
1438 1537
1439int 1538int
1440munlockall () 1539munlockall ()
1441 PROTOTYPE:
1442 CODE: 1540 CODE:
1443#if _POSIX_MEMLOCK 1541#if _POSIX_MEMLOCK
1444 munlockall (); 1542 munlockall ();
1445#else 1543#else
1446 RETVAL = -1; 1544 RETVAL = -1;

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines