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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 1.179 by root, Fri Jan 7 21:47:15 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 !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
… …
304 } 334 }
305} 335}
306 336
307static int req_invoke (eio_req *req) 337static int req_invoke (eio_req *req)
308{ 338{
309 dSP;
310
311 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
312 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
313 341
314 if (!EIO_CANCELLED (req) && req->callback) 342 if (!EIO_CANCELLED (req) && req->callback)
315 { 343 {
344 dSP;
316 static SV *sv_result_cache; /* caches the result integer SV */ 345 static SV *sv_result_cache; /* caches the result integer SV */
317 SV *sv_result; 346 SV *sv_result;
318 347
319 ENTER; 348 ENTER;
320 SAVETMPS; 349 SAVETMPS;
… …
324 /* do not recreate the result IV from scratch each time */ 353 /* do not recreate the result IV from scratch each time */
325 if (expect_true (sv_result_cache)) 354 if (expect_true (sv_result_cache))
326 { 355 {
327 sv_result = sv_result_cache; sv_result_cache = 0; 356 sv_result = sv_result_cache; sv_result_cache = 0;
328 SvIV_set (sv_result, req->result); 357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
329 } 359 }
330 else 360 else
331 { 361 {
332 sv_result = newSViv (req->result); 362 sv_result = newSViv (req->result);
333 SvREADONLY_on (sv_result); 363 SvREADONLY_on (sv_result);
… …
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(), so 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:
… …
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)
612#endif 642#endif
613 643
644#if !_POSIX_MEMORY_PROTECTION
645# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
646# define PROT_NONE 0
647# define PROT_WRITE 0
648# define MAP_PRIVATE 0
649# define MAP_SHARED 0
650# define MAP_FIXED 0
651#endif
652
614#define MMAP_MAGIC PERL_MAGIC_ext 653#define MMAP_MAGIC PERL_MAGIC_ext
615 654
616static int 655static int
617mmap_free (pTHX_ SV *sv, MAGIC *mg) 656mmap_free (pTHX_ SV *sv, MAGIC *mg)
618{ 657{
… …
621 errno = old_errno; 660 errno = old_errno;
622 661
623 mg->mg_obj = 0; /* just in case */ 662 mg->mg_obj = 0; /* just in case */
624 663
625 SvREADONLY_off (sv); 664 SvREADONLY_off (sv);
665
666 if (SvPVX (sv) != mg->mg_ptr)
667 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
668
626 SvCUR_set (sv, 0); 669 SvCUR_set (sv, 0);
627 SvLEN_set (sv, 0);
628 SvPVX (sv) = 0; 670 SvPVX (sv) = 0;
629 SvOK_off (sv); 671 SvOK_off (sv);
630 672
631 return 0; 673 return 0;
632} 674}
… …
697 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 739 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
698 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 740 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
699 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 741 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
700 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 742 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
701 743
744 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
745 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
746 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
747 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
748 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
749
702 const_iv (ST_RDONLY) 750 const_iv (ST_RDONLY)
703 const_iv (ST_NOSUID) 751 const_iv (ST_NOSUID)
704 const_iv (ST_NODEV) 752 const_iv (ST_NODEV)
705 const_iv (ST_NOEXEC) 753 const_iv (ST_NOEXEC)
706 const_iv (ST_SYNCHRONOUS) 754 const_iv (ST_SYNCHRONOUS)
… …
710 const_iv (ST_IMMUTABLE) 758 const_iv (ST_IMMUTABLE)
711 const_iv (ST_NOATIME) 759 const_iv (ST_NOATIME)
712 const_iv (ST_NODIRATIME) 760 const_iv (ST_NODIRATIME)
713 const_iv (ST_RELATIME) 761 const_iv (ST_RELATIME)
714 762
763 const_iv (PROT_NONE)
715 const_iv (PROT_EXEC) 764 const_iv (PROT_EXEC)
716 const_iv (PROT_NONE)
717 const_iv (PROT_READ) 765 const_iv (PROT_READ)
718 const_iv (PROT_WRITE) 766 const_iv (PROT_WRITE)
719 767
720 /*const_iv (MAP_FIXED)*/ 768 /*const_iv (MAP_FIXED)*/
721 const_iv (MAP_PRIVATE) 769 const_iv (MAP_PRIVATE)
… …
727 const_iv (MAP_LOCKED) 775 const_iv (MAP_LOCKED)
728 const_iv (MAP_NORESERVE) 776 const_iv (MAP_NORESERVE)
729 const_iv (MAP_POPULATE) 777 const_iv (MAP_POPULATE)
730 const_iv (MAP_NONBLOCK) 778 const_iv (MAP_NONBLOCK)
731 779
732 const_iv (MCL_FUTURE) 780 const_eio (MCL_FUTURE)
733 const_iv (MCL_CURRENT) 781 const_eio (MCL_CURRENT)
734 782
735 const_eio (MS_ASYNC) 783 const_eio (MS_ASYNC)
736 const_eio (MS_INVALIDATE) 784 const_eio (MS_INVALIDATE)
737 const_eio (MS_SYNC) 785 const_eio (MS_SYNC)
738 786
… …
812 CODE: 860 CODE:
813 max_outstanding = maxreqs; 861 max_outstanding = maxreqs;
814 862
815void 863void
816aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 864aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
817 PROTOTYPE: $$$;$
818 PPCODE: 865 PPCODE:
819{ 866{
820 dREQ; 867 dREQ;
821 868
822 req->type = EIO_OPEN; 869 req->type = EIO_OPEN;
… …
828 REQ_SEND; 875 REQ_SEND;
829} 876}
830 877
831void 878void
832aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 879aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
833 PROTOTYPE: $;$
834 ALIAS: 880 ALIAS:
835 aio_fsync = EIO_FSYNC 881 aio_fsync = EIO_FSYNC
836 aio_fdatasync = EIO_FDATASYNC 882 aio_fdatasync = EIO_FDATASYNC
837 PPCODE: 883 PPCODE:
838{ 884{
… …
846 REQ_SEND (req); 892 REQ_SEND (req);
847} 893}
848 894
849void 895void
850aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 896aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
851 PROTOTYPE: $$$$;$
852 PPCODE: 897 PPCODE:
853{ 898{
854 int fd = s_fileno_croak (fh, 0); 899 int fd = s_fileno_croak (fh, 0);
855 dREQ; 900 dREQ;
856 901
… …
864 REQ_SEND (req); 909 REQ_SEND (req);
865} 910}
866 911
867void 912void
868aio_close (SV *fh, SV *callback=&PL_sv_undef) 913aio_close (SV *fh, SV *callback=&PL_sv_undef)
869 PROTOTYPE: $;$
870 PPCODE: 914 PPCODE:
871{ 915{
872 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 916 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
873 int fd = s_fileno_croak (fh, 0); 917 int fd = s_fileno_croak (fh, 0);
874 dREQ; 918 dREQ;
… …
896void 940void
897aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 941aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
898 ALIAS: 942 ALIAS:
899 aio_read = EIO_READ 943 aio_read = EIO_READ
900 aio_write = EIO_WRITE 944 aio_write = EIO_WRITE
901 PROTOTYPE: $$$$$;$
902 PPCODE: 945 PPCODE:
903{ 946{
904 STRLEN svlen; 947 STRLEN svlen;
905 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 948 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
906 char *svptr = SvPVbyte (data, svlen); 949 char *svptr = SvPVbyte (data, svlen);
… …
947 } 990 }
948} 991}
949 992
950void 993void
951aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 994aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
952 PROTOTYPE: $$;$
953 PPCODE: 995 PPCODE:
954{ 996{
955 SV *data; 997 SV *data;
956 dREQ; 998 dREQ;
957 999
… …
962 REQ_SEND; 1004 REQ_SEND;
963} 1005}
964 1006
965void 1007void
966aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1008aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
967 PROTOTYPE: $$$$;$
968 PPCODE: 1009 PPCODE:
969{ 1010{
970 int ifd = s_fileno_croak (in_fh , 0); 1011 int ifd = s_fileno_croak (in_fh , 0);
971 int ofd = s_fileno_croak (out_fh, 1); 1012 int ofd = s_fileno_croak (out_fh, 1);
972 dREQ; 1013 dREQ;
… …
982 REQ_SEND; 1023 REQ_SEND;
983} 1024}
984 1025
985void 1026void
986aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1027aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
987 PROTOTYPE: $$$;$
988 PPCODE: 1028 PPCODE:
989{ 1029{
990 int fd = s_fileno_croak (fh, 0); 1030 int fd = s_fileno_croak (fh, 0);
991 dREQ; 1031 dREQ;
992 1032
… …
1193void 1233void
1194aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1234aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1195 ALIAS: 1235 ALIAS:
1196 aio_mtouch = EIO_MTOUCH 1236 aio_mtouch = EIO_MTOUCH
1197 aio_msync = EIO_MSYNC 1237 aio_msync = EIO_MSYNC
1198 PROTOTYPE: $$$$;$
1199 PPCODE: 1238 PPCODE:
1200{ 1239{
1201 STRLEN svlen; 1240 STRLEN svlen;
1241 char *svptr = SvPVbyte (data, svlen);
1202 UV len = SvUV (length); 1242 UV len = SvUV (length);
1203 char *svptr = SvPVbyte (data, svlen);
1204 1243
1205 if (offset < 0) 1244 if (offset < 0)
1206 offset += svlen; 1245 offset += svlen;
1207 1246
1208 if (offset < 0 || offset > svlen) 1247 if (offset < 0 || offset > svlen)
… …
1213 1252
1214 { 1253 {
1215 dREQ; 1254 dREQ;
1216 1255
1217 req->type = ix; 1256 req->type = ix;
1218 req->size = len;
1219 req->sv2 = SvREFCNT_inc (data); 1257 req->sv2 = SvREFCNT_inc (data);
1220 req->ptr2 = (char *)svptr + offset; 1258 req->ptr2 = (char *)svptr + offset;
1259 req->size = len;
1221 req->int1 = flags; 1260 req->int1 = flags;
1222 1261
1223 REQ_SEND; 1262 REQ_SEND;
1224 } 1263 }
1225} 1264}
1226 1265
1227void 1266void
1267aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1268 PPCODE:
1269{
1270 STRLEN svlen;
1271 char *svptr = SvPVbyte (data, svlen);
1272 UV len = SvUV (length);
1273
1274 if (offset < 0)
1275 offset += svlen;
1276
1277 if (offset < 0 || offset > svlen)
1278 croak ("offset outside of scalar");
1279
1280 if (!SvOK (length) || len + offset > svlen)
1281 len = svlen - offset;
1282
1283 {
1284 dREQ;
1285
1286 req->type = EIO_MLOCK;
1287 req->sv2 = SvREFCNT_inc (data);
1288 req->ptr2 = (char *)svptr + offset;
1289 req->size = len;
1290
1291 REQ_SEND;
1292 }
1293}
1294
1295void
1296aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1297 PPCODE:
1298{
1299 dREQ;
1300
1301 req->type = EIO_MLOCKALL;
1302 req->int1 = flags;
1303
1304 REQ_SEND;
1305}
1306
1307void
1228aio_busy (double delay, SV *callback=&PL_sv_undef) 1308aio_busy (double delay, SV *callback=&PL_sv_undef)
1229 PPCODE: 1309 PPCODE:
1230{ 1310{
1231 dREQ; 1311 dREQ;
1232 1312
… …
1236 REQ_SEND; 1316 REQ_SEND;
1237} 1317}
1238 1318
1239void 1319void
1240aio_group (SV *callback=&PL_sv_undef) 1320aio_group (SV *callback=&PL_sv_undef)
1241 PROTOTYPE: ;$
1242 PPCODE: 1321 PPCODE:
1243{ 1322{
1244 dREQ; 1323 dREQ;
1245 1324
1246 req->type = EIO_GROUP; 1325 req->type = EIO_GROUP;
… …
1263 REQ_SEND; 1342 REQ_SEND;
1264} 1343}
1265 1344
1266int 1345int
1267aioreq_pri (int pri = 0) 1346aioreq_pri (int pri = 0)
1268 PROTOTYPE: ;$
1269 CODE: 1347 CODE:
1270 RETVAL = next_pri; 1348 RETVAL = next_pri;
1271 if (items > 0) 1349 if (items > 0)
1272 { 1350 {
1273 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1351 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1285 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1363 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1286 next_pri = nice; 1364 next_pri = nice;
1287 1365
1288void 1366void
1289flush () 1367flush ()
1290 PROTOTYPE:
1291 CODE: 1368 CODE:
1292 while (eio_nreqs ()) 1369 while (eio_nreqs ())
1293 { 1370 {
1294 poll_wait (); 1371 poll_wait ();
1295 poll_cb (); 1372 poll_cb ();
1296 } 1373 }
1297 1374
1298int 1375int
1299poll() 1376poll ()
1300 PROTOTYPE:
1301 CODE: 1377 CODE:
1302 poll_wait (); 1378 poll_wait ();
1303 RETVAL = poll_cb (); 1379 RETVAL = poll_cb ();
1304 OUTPUT: 1380 OUTPUT:
1305 RETVAL 1381 RETVAL
1306 1382
1307int 1383int
1308poll_fileno() 1384poll_fileno ()
1309 PROTOTYPE:
1310 CODE: 1385 CODE:
1311 RETVAL = s_epipe_fd (&respipe); 1386 RETVAL = s_epipe_fd (&respipe);
1312 OUTPUT: 1387 OUTPUT:
1313 RETVAL 1388 RETVAL
1314 1389
1315int 1390int
1316poll_cb(...) 1391poll_cb (...)
1317 PROTOTYPE: 1392 PROTOTYPE:
1318 CODE: 1393 CODE:
1319 RETVAL = poll_cb (); 1394 RETVAL = poll_cb ();
1320 OUTPUT: 1395 OUTPUT:
1321 RETVAL 1396 RETVAL
1322 1397
1323void 1398void
1324poll_wait() 1399poll_wait ()
1325 PROTOTYPE:
1326 CODE: 1400 CODE:
1327 poll_wait (); 1401 poll_wait ();
1328 1402
1329int 1403int
1330nreqs() 1404nreqs ()
1331 PROTOTYPE:
1332 CODE: 1405 CODE:
1333 RETVAL = eio_nreqs (); 1406 RETVAL = eio_nreqs ();
1334 OUTPUT: 1407 OUTPUT:
1335 RETVAL 1408 RETVAL
1336 1409
1337int 1410int
1338nready() 1411nready ()
1339 PROTOTYPE:
1340 CODE: 1412 CODE:
1341 RETVAL = eio_nready (); 1413 RETVAL = eio_nready ();
1342 OUTPUT: 1414 OUTPUT:
1343 RETVAL 1415 RETVAL
1344 1416
1345int 1417int
1346npending() 1418npending ()
1347 PROTOTYPE:
1348 CODE: 1419 CODE:
1349 RETVAL = eio_npending (); 1420 RETVAL = eio_npending ();
1350 OUTPUT: 1421 OUTPUT:
1351 RETVAL 1422 RETVAL
1352 1423
1353int 1424int
1354nthreads() 1425nthreads ()
1355 PROTOTYPE:
1356 CODE: 1426 CODE:
1357 RETVAL = eio_nthreads (); 1427 RETVAL = eio_nthreads ();
1358 OUTPUT: 1428 OUTPUT:
1359 RETVAL 1429 RETVAL
1360 1430
1361int 1431int
1362fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1432fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1363 PROTOTYPE: $$$$
1364 CODE: 1433 CODE:
1365#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1366 RETVAL = posix_fadvise (fh, offset, length, advice); 1434 RETVAL = posix_fadvise (fh, offset, length, advice);
1367#else
1368 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1369#endif
1370 OUTPUT: 1435 OUTPUT:
1371 RETVAL 1436 RETVAL
1372 1437
1373ssize_t 1438ssize_t
1374sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1439sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1375 PROTOTYPE: $$$$
1376 CODE: 1440 CODE:
1377 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1441 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1378 OUTPUT: 1442 OUTPUT:
1379 RETVAL 1443 RETVAL
1380 1444
1381void 1445void
1382mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1446mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1383 PROTOTYPE: $$$$$;$
1384 PPCODE: 1447 PPCODE:
1385 sv_unmagic (scalar, MMAP_MAGIC); 1448 sv_unmagic (scalar, MMAP_MAGIC);
1386{ 1449{
1387 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1450 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1388 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1451 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389 if (addr == (void *)-1) 1452 if (addr == (void *)-1)
1390 XSRETURN_NO; 1453 XSRETURN_NO;
1391 1454
1455 sv_force_normal (scalar);
1456
1392 /* we store the length in mg_obj, as namlen is I32 :/ */ 1457 /* we store the length in mg_obj, as namlen is I32 :/ */
1393 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1458 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394 ->mg_obj = (SV *)length; 1459 ->mg_obj = (SV *)length;
1395 1460
1396 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1461 SvUPGRADE (scalar, SVt_PV); /* nop... */
1462
1397 if (!(prot & PROT_WRITE)) 1463 if (!(prot & PROT_WRITE))
1398 SvREADONLY_on (scalar); 1464 SvREADONLY_on (scalar);
1465
1466 if (SvLEN (scalar))
1467 Safefree (SvPVX (scalar));
1399 1468
1400 SvPVX (scalar) = (char *)addr; 1469 SvPVX (scalar) = (char *)addr;
1401 SvCUR_set (scalar, length); 1470 SvCUR_set (scalar, length);
1402 SvLEN_set (scalar, 0); 1471 SvLEN_set (scalar, 0);
1403 SvPOK_only (scalar); 1472 SvPOK_only (scalar);
… …
1405 XSRETURN_YES; 1474 XSRETURN_YES;
1406} 1475}
1407 1476
1408void 1477void
1409munmap (SV *scalar) 1478munmap (SV *scalar)
1410 PROTOTYPE: $
1411 CODE: 1479 CODE:
1412 sv_unmagic (scalar, MMAP_MAGIC); 1480 sv_unmagic (scalar, MMAP_MAGIC);
1413 1481
1414int 1482int
1415mlockall (int flags) 1483madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1416 PROTOTYPE: $ 1484 ALIAS:
1485 mprotect = 1
1417 CODE: 1486 CODE:
1487{
1488 STRLEN svlen;
1489 void *addr = SvPVbyte (scalar, svlen);
1490 size_t len = SvUV (length);
1491
1492 if (offset < 0)
1493 offset += svlen;
1494
1495 if (offset < 0 || offset > svlen)
1496 croak ("offset outside of scalar");
1497
1498 if (!SvOK (length) || len + offset > svlen)
1499 len = svlen - offset;
1500
1501 addr = (void *)(((intptr_t)addr) + offset);
1502 eio_page_align (&addr, &len);
1503
1504 switch (ix)
1505 {
1506 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1507 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1508 }
1509}
1510 OUTPUT:
1511 RETVAL
1512
1513int
1514munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1515 CODE:
1516{
1517 STRLEN svlen;
1518 void *addr = SvPVbyte (scalar, svlen);
1519 size_t len = SvUV (length);
1520
1521 if (offset < 0)
1522 offset += svlen;
1523
1524 if (offset < 0 || offset > svlen)
1525 croak ("offset outside of scalar");
1526
1527 if (!SvOK (length) || len + offset > svlen)
1528 len = svlen - offset;
1529
1530 addr = (void *)(((intptr_t)addr) + offset);
1531 eio_page_align (&addr, &len);
1418#if _POSIX_MEMLOCK 1532#if _POSIX_MEMLOCK_RANGE
1419#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1533 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 1534#else
1425 RETVAL = -1; 1535 RETVAL = ((errno = ENOSYS), -1);
1426 errno = ENOSYS;
1427#endif 1536#endif
1537}
1428 OUTPUT: 1538 OUTPUT:
1429 RETVAL 1539 RETVAL
1430 1540
1431int 1541int
1432munlockall () 1542munlockall ()
1433 PROTOTYPE:
1434 CODE: 1543 CODE:
1435#if _POSIX_MEMLOCK 1544#if _POSIX_MEMLOCK
1436 munlockall (); 1545 munlockall ();
1437#else 1546#else
1438 RETVAL = -1; 1547 RETVAL = -1;

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