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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.170 by root, Wed Aug 4 16:09:36 2010 UTC vs.
Revision 1.178 by root, Fri Jan 7 21:45:42 2011 UTC

… …
16#include <sys/statvfs.h> 16#include <sys/statvfs.h>
17#include <limits.h> 17#include <limits.h>
18#include <fcntl.h> 18#include <fcntl.h>
19#include <sched.h> 19#include <sched.h>
20 20
21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES 21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h> 22# include <sys/mman.h>
23#endif 23#endif
24 24
25/* perl namespace pollution */ 25/* perl namespace pollution */
26#undef VERSION 26#undef VERSION
… …
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 _XOPEN_SOURCE < 600 || NO_FADVISE 145#if !HAVE_POSIX_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ 146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif 147#endif
148 148
149#ifndef POSIX_MADV_NORMAL 149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0 150# define POSIX_MADV_NORMAL 0
151# define NO_MADVISE 1
152#endif 151#endif
153#ifndef POSIX_MADV_SEQUENTIAL 152#ifndef POSIX_MADV_SEQUENTIAL
154# define POSIX_MADV_SEQUENTIAL 0 153# define POSIX_MADV_SEQUENTIAL 0
155#endif 154#endif
156#ifndef POSIX_MADV_RANDOM 155#ifndef POSIX_MADV_RANDOM
… …
161#endif 160#endif
162#ifndef POSIX_MADV_DONTNEED 161#ifndef POSIX_MADV_DONTNEED
163# define POSIX_MADV_DONTNEED 0 162# define POSIX_MADV_DONTNEED 0
164#endif 163#endif
165 164
166#if _XOPEN_SOURCE < 600 || NO_MADVISE 165#if !HAVE_POSIX_MADVISE
167# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ 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
168#endif 180#endif
169 181
170#ifndef ST_NODEV 182#ifndef ST_NODEV
171# define ST_NODEV 0 183# define ST_NODEV 0
172#endif 184#endif
… …
194#ifndef ST_NODIRATIME 206#ifndef ST_NODIRATIME
195# define ST_NODIRATIME 0 207# define ST_NODIRATIME 0
196#endif 208#endif
197#ifndef ST_RELATIME 209#ifndef ST_RELATIME
198# define ST_RELATIME 0 210# define ST_RELATIME 0
199#endif
200
201#ifndef MCL_CURRENT
202# define MCL_CURRENT 0
203#endif
204#ifndef MCL_FUTURE
205# define MCL_FUTURE 0
206#endif 211#endif
207 212
208#ifndef MAP_ANONYMOUS 213#ifndef MAP_ANONYMOUS
209# ifdef MAP_ANON 214# ifdef MAP_ANON
210# define MAP_ANONYMOUS MAP_ANON 215# define MAP_ANONYMOUS MAP_ANON
… …
348 /* do not recreate the result IV from scratch each time */ 353 /* do not recreate the result IV from scratch each time */
349 if (expect_true (sv_result_cache)) 354 if (expect_true (sv_result_cache))
350 { 355 {
351 sv_result = sv_result_cache; sv_result_cache = 0; 356 sv_result = sv_result_cache; sv_result_cache = 0;
352 SvIV_set (sv_result, req->result); 357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
353 } 359 }
354 else 360 else
355 { 361 {
356 sv_result = newSViv (req->result); 362 sv_result = newSViv (req->result);
357 SvREADONLY_on (sv_result); 363 SvREADONLY_on (sv_result);
… …
521 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
522 PUSHs (sv_result); 528 PUSHs (sv_result);
523 } 529 }
524 break; 530 break;
525 531
526 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 */
527 if (req->result > 0) 533 if (req->result > 0)
528 SvIV_set (sv_result, 0); 534 SvIV_set (sv_result, 0);
529 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
530 536
531 default: 537 default:
… …
631/*****************************************************************************/ 637/*****************************************************************************/
632 638
633#if !_POSIX_MAPPED_FILES 639#if !_POSIX_MAPPED_FILES
634# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
635# 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
636#endif 648#endif
637 649
638#define MMAP_MAGIC PERL_MAGIC_ext 650#define MMAP_MAGIC PERL_MAGIC_ext
639 651
640static int 652static int
… …
743 const_iv (ST_IMMUTABLE) 755 const_iv (ST_IMMUTABLE)
744 const_iv (ST_NOATIME) 756 const_iv (ST_NOATIME)
745 const_iv (ST_NODIRATIME) 757 const_iv (ST_NODIRATIME)
746 const_iv (ST_RELATIME) 758 const_iv (ST_RELATIME)
747 759
760 const_iv (PROT_NONE)
748 const_iv (PROT_EXEC) 761 const_iv (PROT_EXEC)
749 const_iv (PROT_NONE)
750 const_iv (PROT_READ) 762 const_iv (PROT_READ)
751 const_iv (PROT_WRITE) 763 const_iv (PROT_WRITE)
752 764
753 /*const_iv (MAP_FIXED)*/ 765 /*const_iv (MAP_FIXED)*/
754 const_iv (MAP_PRIVATE) 766 const_iv (MAP_PRIVATE)
… …
760 const_iv (MAP_LOCKED) 772 const_iv (MAP_LOCKED)
761 const_iv (MAP_NORESERVE) 773 const_iv (MAP_NORESERVE)
762 const_iv (MAP_POPULATE) 774 const_iv (MAP_POPULATE)
763 const_iv (MAP_NONBLOCK) 775 const_iv (MAP_NONBLOCK)
764 776
765 const_iv (MCL_FUTURE) 777 const_eio (MCL_FUTURE)
766 const_iv (MCL_CURRENT) 778 const_eio (MCL_CURRENT)
767 779
768 const_eio (MS_ASYNC) 780 const_eio (MS_ASYNC)
769 const_eio (MS_INVALIDATE) 781 const_eio (MS_INVALIDATE)
770 const_eio (MS_SYNC) 782 const_eio (MS_SYNC)
771 783
… …
845 CODE: 857 CODE:
846 max_outstanding = maxreqs; 858 max_outstanding = maxreqs;
847 859
848void 860void
849aio_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)
850 PROTOTYPE: $$$;$
851 PPCODE: 862 PPCODE:
852{ 863{
853 dREQ; 864 dREQ;
854 865
855 req->type = EIO_OPEN; 866 req->type = EIO_OPEN;
… …
861 REQ_SEND; 872 REQ_SEND;
862} 873}
863 874
864void 875void
865aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 876aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
866 PROTOTYPE: $;$
867 ALIAS: 877 ALIAS:
868 aio_fsync = EIO_FSYNC 878 aio_fsync = EIO_FSYNC
869 aio_fdatasync = EIO_FDATASYNC 879 aio_fdatasync = EIO_FDATASYNC
870 PPCODE: 880 PPCODE:
871{ 881{
… …
879 REQ_SEND (req); 889 REQ_SEND (req);
880} 890}
881 891
882void 892void
883aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 893aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
884 PROTOTYPE: $$$$;$
885 PPCODE: 894 PPCODE:
886{ 895{
887 int fd = s_fileno_croak (fh, 0); 896 int fd = s_fileno_croak (fh, 0);
888 dREQ; 897 dREQ;
889 898
… …
897 REQ_SEND (req); 906 REQ_SEND (req);
898} 907}
899 908
900void 909void
901aio_close (SV *fh, SV *callback=&PL_sv_undef) 910aio_close (SV *fh, SV *callback=&PL_sv_undef)
902 PROTOTYPE: $;$
903 PPCODE: 911 PPCODE:
904{ 912{
905 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 913 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
906 int fd = s_fileno_croak (fh, 0); 914 int fd = s_fileno_croak (fh, 0);
907 dREQ; 915 dREQ;
… …
929void 937void
930aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 938aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
931 ALIAS: 939 ALIAS:
932 aio_read = EIO_READ 940 aio_read = EIO_READ
933 aio_write = EIO_WRITE 941 aio_write = EIO_WRITE
934 PROTOTYPE: $$$$$;$
935 PPCODE: 942 PPCODE:
936{ 943{
937 STRLEN svlen; 944 STRLEN svlen;
938 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 945 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
939 char *svptr = SvPVbyte (data, svlen); 946 char *svptr = SvPVbyte (data, svlen);
… …
980 } 987 }
981} 988}
982 989
983void 990void
984aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 991aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
985 PROTOTYPE: $$;$
986 PPCODE: 992 PPCODE:
987{ 993{
988 SV *data; 994 SV *data;
989 dREQ; 995 dREQ;
990 996
… …
995 REQ_SEND; 1001 REQ_SEND;
996} 1002}
997 1003
998void 1004void
999aio_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)
1000 PROTOTYPE: $$$$;$
1001 PPCODE: 1006 PPCODE:
1002{ 1007{
1003 int ifd = s_fileno_croak (in_fh , 0); 1008 int ifd = s_fileno_croak (in_fh , 0);
1004 int ofd = s_fileno_croak (out_fh, 1); 1009 int ofd = s_fileno_croak (out_fh, 1);
1005 dREQ; 1010 dREQ;
… …
1015 REQ_SEND; 1020 REQ_SEND;
1016} 1021}
1017 1022
1018void 1023void
1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1024aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1020 PROTOTYPE: $$$;$
1021 PPCODE: 1025 PPCODE:
1022{ 1026{
1023 int fd = s_fileno_croak (fh, 0); 1027 int fd = s_fileno_croak (fh, 0);
1024 dREQ; 1028 dREQ;
1025 1029
… …
1226void 1230void
1227aio_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)
1228 ALIAS: 1232 ALIAS:
1229 aio_mtouch = EIO_MTOUCH 1233 aio_mtouch = EIO_MTOUCH
1230 aio_msync = EIO_MSYNC 1234 aio_msync = EIO_MSYNC
1231 PROTOTYPE: $$$$;$
1232 PPCODE: 1235 PPCODE:
1233{ 1236{
1234 STRLEN svlen; 1237 STRLEN svlen;
1238 char *svptr = SvPVbyte (data, svlen);
1235 UV len = SvUV (length); 1239 UV len = SvUV (length);
1236 char *svptr = SvPVbyte (data, svlen);
1237 1240
1238 if (offset < 0) 1241 if (offset < 0)
1239 offset += svlen; 1242 offset += svlen;
1240 1243
1241 if (offset < 0 || offset > svlen) 1244 if (offset < 0 || offset > svlen)
… …
1246 1249
1247 { 1250 {
1248 dREQ; 1251 dREQ;
1249 1252
1250 req->type = ix; 1253 req->type = ix;
1251 req->size = len;
1252 req->sv2 = SvREFCNT_inc (data); 1254 req->sv2 = SvREFCNT_inc (data);
1253 req->ptr2 = (char *)svptr + offset; 1255 req->ptr2 = (char *)svptr + offset;
1256 req->size = len;
1254 req->int1 = flags; 1257 req->int1 = flags;
1255 1258
1256 REQ_SEND; 1259 REQ_SEND;
1257 } 1260 }
1258} 1261}
1259 1262
1260void 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
1261aio_busy (double delay, SV *callback=&PL_sv_undef) 1305aio_busy (double delay, SV *callback=&PL_sv_undef)
1262 PPCODE: 1306 PPCODE:
1263{ 1307{
1264 dREQ; 1308 dREQ;
1265 1309
… …
1269 REQ_SEND; 1313 REQ_SEND;
1270} 1314}
1271 1315
1272void 1316void
1273aio_group (SV *callback=&PL_sv_undef) 1317aio_group (SV *callback=&PL_sv_undef)
1274 PROTOTYPE: ;$
1275 PPCODE: 1318 PPCODE:
1276{ 1319{
1277 dREQ; 1320 dREQ;
1278 1321
1279 req->type = EIO_GROUP; 1322 req->type = EIO_GROUP;
… …
1296 REQ_SEND; 1339 REQ_SEND;
1297} 1340}
1298 1341
1299int 1342int
1300aioreq_pri (int pri = 0) 1343aioreq_pri (int pri = 0)
1301 PROTOTYPE: ;$
1302 CODE: 1344 CODE:
1303 RETVAL = next_pri; 1345 RETVAL = next_pri;
1304 if (items > 0) 1346 if (items > 0)
1305 { 1347 {
1306 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1348 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1318 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1360 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1319 next_pri = nice; 1361 next_pri = nice;
1320 1362
1321void 1363void
1322flush () 1364flush ()
1323 PROTOTYPE:
1324 CODE: 1365 CODE:
1325 while (eio_nreqs ()) 1366 while (eio_nreqs ())
1326 { 1367 {
1327 poll_wait (); 1368 poll_wait ();
1328 poll_cb (); 1369 poll_cb ();
1329 } 1370 }
1330 1371
1331int 1372int
1332poll() 1373poll ()
1333 PROTOTYPE:
1334 CODE: 1374 CODE:
1335 poll_wait (); 1375 poll_wait ();
1336 RETVAL = poll_cb (); 1376 RETVAL = poll_cb ();
1337 OUTPUT: 1377 OUTPUT:
1338 RETVAL 1378 RETVAL
1339 1379
1340int 1380int
1341poll_fileno() 1381poll_fileno ()
1342 PROTOTYPE:
1343 CODE: 1382 CODE:
1344 RETVAL = s_epipe_fd (&respipe); 1383 RETVAL = s_epipe_fd (&respipe);
1345 OUTPUT: 1384 OUTPUT:
1346 RETVAL 1385 RETVAL
1347 1386
1348int 1387int
1349poll_cb(...) 1388poll_cb (...)
1350 PROTOTYPE: 1389 PROTOTYPE:
1351 CODE: 1390 CODE:
1352 RETVAL = poll_cb (); 1391 RETVAL = poll_cb ();
1353 OUTPUT: 1392 OUTPUT:
1354 RETVAL 1393 RETVAL
1355 1394
1356void 1395void
1357poll_wait() 1396poll_wait ()
1358 PROTOTYPE:
1359 CODE: 1397 CODE:
1360 poll_wait (); 1398 poll_wait ();
1361 1399
1362int 1400int
1363nreqs() 1401nreqs ()
1364 PROTOTYPE:
1365 CODE: 1402 CODE:
1366 RETVAL = eio_nreqs (); 1403 RETVAL = eio_nreqs ();
1367 OUTPUT: 1404 OUTPUT:
1368 RETVAL 1405 RETVAL
1369 1406
1370int 1407int
1371nready() 1408nready ()
1372 PROTOTYPE:
1373 CODE: 1409 CODE:
1374 RETVAL = eio_nready (); 1410 RETVAL = eio_nready ();
1375 OUTPUT: 1411 OUTPUT:
1376 RETVAL 1412 RETVAL
1377 1413
1378int 1414int
1379npending() 1415npending ()
1380 PROTOTYPE:
1381 CODE: 1416 CODE:
1382 RETVAL = eio_npending (); 1417 RETVAL = eio_npending ();
1383 OUTPUT: 1418 OUTPUT:
1384 RETVAL 1419 RETVAL
1385 1420
1386int 1421int
1387nthreads() 1422nthreads ()
1388 PROTOTYPE:
1389 CODE: 1423 CODE:
1390 RETVAL = eio_nthreads (); 1424 RETVAL = eio_nthreads ();
1391 OUTPUT: 1425 OUTPUT:
1392 RETVAL 1426 RETVAL
1393 1427
1394int 1428int
1395fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1429fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1396 PROTOTYPE: $$$$
1397 CODE: 1430 CODE:
1398 RETVAL = posix_fadvise (fh, offset, length, advice); 1431 RETVAL = posix_fadvise (fh, offset, length, advice);
1399 OUTPUT: 1432 OUTPUT:
1400 RETVAL 1433 RETVAL
1401 1434
1402ssize_t 1435ssize_t
1403sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1436sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1404 PROTOTYPE: $$$$
1405 CODE: 1437 CODE:
1406 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1438 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1407 OUTPUT: 1439 OUTPUT:
1408 RETVAL 1440 RETVAL
1409 1441
1410void 1442void
1411mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1443mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1412 PROTOTYPE: $$$$$;$
1413 PPCODE: 1444 PPCODE:
1414 sv_unmagic (scalar, MMAP_MAGIC); 1445 sv_unmagic (scalar, MMAP_MAGIC);
1415{ 1446{
1416 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1447 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1417 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1448 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1440 XSRETURN_YES; 1471 XSRETURN_YES;
1441} 1472}
1442 1473
1443void 1474void
1444munmap (SV *scalar) 1475munmap (SV *scalar)
1445 PROTOTYPE: $
1446 CODE: 1476 CODE:
1447 sv_unmagic (scalar, MMAP_MAGIC); 1477 sv_unmagic (scalar, MMAP_MAGIC);
1448 1478
1449int 1479int
1450madvise (SV *scalar, off_t offset, off_t length, IV advice) 1480madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1451 PROTOTYPE: $$$$ 1481 ALIAS:
1482 mprotect = 1
1452 CODE: 1483 CODE:
1453{ 1484{
1454 char *addr = SvPV_nolen (scalar) + offset; 1485 STRLEN svlen;
1486 void *addr = SvPVbyte (scalar, svlen);
1487 size_t len = SvUV (length);
1455 1488
1456 if (!SvOK (ST (2))) 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)
1457 length = SvCUR (scalar) - offset; 1496 len = svlen - offset;
1458 1497
1459 if (addr >= SvEND (scalar) || length <= 0) 1498 addr = (void *)(((intptr_t)addr) + offset);
1460 XSRETURN_EMPTY; 1499 eio_page_align (&addr, &len);
1461 1500
1501 switch (ix)
1502 {
1462 RETVAL = posix_madvise (addr, length, advice); 1503 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1504 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1505 }
1463} 1506}
1464 OUTPUT: 1507 OUTPUT:
1465 RETVAL 1508 RETVAL
1466 1509
1467int 1510int
1468mlockall (int flags) 1511munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1469 PROTOTYPE: $
1470 CODE: 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);
1471#if _POSIX_MEMLOCK 1529#if _POSIX_MEMLOCK_RANGE
1472#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1530 RETVAL = munlock (addr, len);
1473 extern int mallopt (int, int);
1474 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1475#endif
1476 mlockall (flags);
1477#else 1531#else
1478 RETVAL = -1; 1532 RETVAL = ((errno = ENOSYS), -1);
1479 errno = ENOSYS;
1480#endif 1533#endif
1534}
1481 OUTPUT: 1535 OUTPUT:
1482 RETVAL 1536 RETVAL
1483 1537
1484int 1538int
1485munlockall () 1539munlockall ()
1486 PROTOTYPE:
1487 CODE: 1540 CODE:
1488#if _POSIX_MEMLOCK 1541#if _POSIX_MEMLOCK
1489 munlockall (); 1542 munlockall ();
1490#else 1543#else
1491 RETVAL = -1; 1544 RETVAL = -1;

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