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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC vs.
Revision 1.175 by root, Wed Dec 1 04:43:12 2010 UTC

… …
122 122
123#include "libeio/eio.h" 123#include "libeio/eio.h"
124 124
125#ifndef POSIX_FADV_NORMAL 125#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0 126# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif 127#endif
129#ifndef POSIX_FADV_SEQUENTIAL 128#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0 129# define POSIX_FADV_SEQUENTIAL 0
131#endif 130#endif
132#ifndef POSIX_FADV_RANDOM 131#ifndef POSIX_FADV_RANDOM
… …
140#endif 139#endif
141#ifndef POSIX_FADV_DONTNEED 140#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0 141# define POSIX_FADV_DONTNEED 0
143#endif 142#endif
144 143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef POSIX_MADV_NORMAL
149# define POSIX_MADV_NORMAL 0
150#endif
151#ifndef POSIX_MADV_SEQUENTIAL
152# define POSIX_MADV_SEQUENTIAL 0
153#endif
154#ifndef POSIX_MADV_RANDOM
155# define POSIX_MADV_RANDOM 0
156#endif
157#ifndef POSIX_MADV_WILLNEED
158# define POSIX_MADV_WILLNEED 0
159#endif
160#ifndef POSIX_MADV_DONTNEED
161# define POSIX_MADV_DONTNEED 0
162#endif
163
164#if !HAVE_POSIX_MADVISE
165# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
166#endif
167
168#ifndef PROT_NONE
169# define PROT_NONE 0
170#endif
171#ifndef PROT_READ
172# define PROT_READ 0
173#endif
174#ifndef PROT_WRITE
175# define PROT_READ 0
176#endif
177#ifndef PROT_EXEC
178# define PROT_EXEC 0
179#endif
180
145#ifndef ST_NODEV 181#ifndef ST_NODEV
146# define ST_NODEV 0 182# define ST_NODEV 0
147#endif 183#endif
148#ifndef ST_NOEXEC 184#ifndef ST_NOEXEC
149# define ST_NOEXEC 0 185# define ST_NOEXEC 0
… …
169#ifndef ST_NODIRATIME 205#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0 206# define ST_NODIRATIME 0
171#endif 207#endif
172#ifndef ST_RELATIME 208#ifndef ST_RELATIME
173# define ST_RELATIME 0 209# 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 210#endif
182 211
183#ifndef MAP_ANONYMOUS 212#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON 213# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON 214# define MAP_ANONYMOUS MAP_ANON
… …
304 } 333 }
305} 334}
306 335
307static int req_invoke (eio_req *req) 336static int req_invoke (eio_req *req)
308{ 337{
309 dSP;
310
311 if (req->flags & FLAG_SV2_RO_OFF) 338 if (req->flags & FLAG_SV2_RO_OFF)
312 SvREADONLY_off (req->sv2); 339 SvREADONLY_off (req->sv2);
313 340
314 if (!EIO_CANCELLED (req) && req->callback) 341 if (!EIO_CANCELLED (req) && req->callback)
315 { 342 {
343 dSP;
344 static SV *sv_result_cache; /* caches the result integer SV */
345 SV *sv_result;
346
316 ENTER; 347 ENTER;
317 SAVETMPS; 348 SAVETMPS;
318 PUSHMARK (SP); 349 PUSHMARK (SP);
319 EXTEND (SP, 1); 350 EXTEND (SP, 1);
351
352 /* do not recreate the result IV from scratch each time */
353 if (expect_true (sv_result_cache))
354 {
355 sv_result = sv_result_cache; sv_result_cache = 0;
356 SvIV_set (sv_result, req->result);
357 }
358 else
359 {
360 sv_result = newSViv (req->result);
361 SvREADONLY_on (sv_result);
362 }
320 363
321 switch (req->type) 364 switch (req->type)
322 { 365 {
323 case EIO_READDIR: 366 case EIO_READDIR:
324 { 367 {
… …
469 case EIO_LSTAT: 512 case EIO_LSTAT:
470 case EIO_FSTAT: 513 case EIO_FSTAT:
471 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 514 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
472 PL_laststatval = req->result; 515 PL_laststatval = req->result;
473 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 516 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474 PUSHs (sv_2mortal (newSViv (req->result))); 517 PUSHs (sv_result);
475 break; 518 break;
476 519
477 case EIO_READ: 520 case EIO_READ:
478 { 521 {
479 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 522 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480 *SvEND (req->sv2) = 0; 523 *SvEND (req->sv2) = 0;
481 SvPOK_only (req->sv2); 524 SvPOK_only (req->sv2);
482 SvSETMAGIC (req->sv2); 525 SvSETMAGIC (req->sv2);
483 PUSHs (sv_2mortal (newSViv (req->result))); 526 PUSHs (sv_result);
484 } 527 }
485 break; 528 break;
486 529
487 case EIO_DUP2: 530 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
488 if (req->result > 0) 531 if (req->result > 0)
489 req->result = 0; 532 SvIV_set (sv_result, 0);
490 /* FALLTHROUGH */ 533 /* FALLTHROUGH */
491 534
492 default: 535 default:
493 PUSHs (sv_2mortal (newSViv (req->result))); 536 PUSHs (sv_result);
494 break; 537 break;
495 } 538 }
496 539
497 errno = req->errorno; 540 errno = req->errorno;
498 541
499 PUTBACK; 542 PUTBACK;
500 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 543 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501 SPAGAIN; 544 SPAGAIN;
545
546 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
547 SvREFCNT_dec (sv_result);
548 else
549 sv_result_cache = sv_result;
502 550
503 FREETMPS; 551 FREETMPS;
504 LEAVE; 552 LEAVE;
505 553
506 PUTBACK; 554 PUTBACK;
… …
587/*****************************************************************************/ 635/*****************************************************************************/
588 636
589#if !_POSIX_MAPPED_FILES 637#if !_POSIX_MAPPED_FILES
590# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 638# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591# define munmap(addr,length) (errno = ENOSYS, -1) 639# define munmap(addr,length) (errno = ENOSYS, -1)
640# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
641# define PROT_NONE 0
642# define PROT_WRITE 0
643# define MAP_PRIVATE 0
644# define MAP_SHARED 0
645# define MAP_FIXED 0
592#endif 646#endif
593 647
594#define MMAP_MAGIC PERL_MAGIC_ext 648#define MMAP_MAGIC PERL_MAGIC_ext
595 649
596static int 650static int
… …
601 errno = old_errno; 655 errno = old_errno;
602 656
603 mg->mg_obj = 0; /* just in case */ 657 mg->mg_obj = 0; /* just in case */
604 658
605 SvREADONLY_off (sv); 659 SvREADONLY_off (sv);
660
661 if (SvPVX (sv) != mg->mg_ptr)
662 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
663
606 SvCUR_set (sv, 0); 664 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0; 665 SvPVX (sv) = 0;
609 SvOK_off (sv); 666 SvOK_off (sv);
610 667
611 return 0; 668 return 0;
612} 669}
… …
677 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 734 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
678 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 735 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
679 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 736 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
680 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 737 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
681 738
739 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
740 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
741 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
742 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
743 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
744
682 const_iv (ST_RDONLY) 745 const_iv (ST_RDONLY)
683 const_iv (ST_NOSUID) 746 const_iv (ST_NOSUID)
684 const_iv (ST_NODEV) 747 const_iv (ST_NODEV)
685 const_iv (ST_NOEXEC) 748 const_iv (ST_NOEXEC)
686 const_iv (ST_SYNCHRONOUS) 749 const_iv (ST_SYNCHRONOUS)
… …
690 const_iv (ST_IMMUTABLE) 753 const_iv (ST_IMMUTABLE)
691 const_iv (ST_NOATIME) 754 const_iv (ST_NOATIME)
692 const_iv (ST_NODIRATIME) 755 const_iv (ST_NODIRATIME)
693 const_iv (ST_RELATIME) 756 const_iv (ST_RELATIME)
694 757
758 const_iv (PROT_NONE)
695 const_iv (PROT_EXEC) 759 const_iv (PROT_EXEC)
696 const_iv (PROT_NONE)
697 const_iv (PROT_READ) 760 const_iv (PROT_READ)
698 const_iv (PROT_WRITE) 761 const_iv (PROT_WRITE)
699 762
700 /*const_iv (MAP_FIXED)*/ 763 /*const_iv (MAP_FIXED)*/
701 const_iv (MAP_PRIVATE) 764 const_iv (MAP_PRIVATE)
… …
707 const_iv (MAP_LOCKED) 770 const_iv (MAP_LOCKED)
708 const_iv (MAP_NORESERVE) 771 const_iv (MAP_NORESERVE)
709 const_iv (MAP_POPULATE) 772 const_iv (MAP_POPULATE)
710 const_iv (MAP_NONBLOCK) 773 const_iv (MAP_NONBLOCK)
711 774
712 const_iv (MCL_FUTURE) 775 const_eio (MCL_FUTURE)
713 const_iv (MCL_CURRENT) 776 const_eio (MCL_CURRENT)
714 777
715 const_eio (MS_ASYNC) 778 const_eio (MS_ASYNC)
716 const_eio (MS_INVALIDATE) 779 const_eio (MS_INVALIDATE)
717 const_eio (MS_SYNC) 780 const_eio (MS_SYNC)
718 781
… …
792 CODE: 855 CODE:
793 max_outstanding = maxreqs; 856 max_outstanding = maxreqs;
794 857
795void 858void
796aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 859aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
797 PROTOTYPE: $$$;$
798 PPCODE: 860 PPCODE:
799{ 861{
800 dREQ; 862 dREQ;
801 863
802 req->type = EIO_OPEN; 864 req->type = EIO_OPEN;
… …
808 REQ_SEND; 870 REQ_SEND;
809} 871}
810 872
811void 873void
812aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 874aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
813 PROTOTYPE: $;$
814 ALIAS: 875 ALIAS:
815 aio_fsync = EIO_FSYNC 876 aio_fsync = EIO_FSYNC
816 aio_fdatasync = EIO_FDATASYNC 877 aio_fdatasync = EIO_FDATASYNC
817 PPCODE: 878 PPCODE:
818{ 879{
… …
826 REQ_SEND (req); 887 REQ_SEND (req);
827} 888}
828 889
829void 890void
830aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 891aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
831 PROTOTYPE: $$$$;$
832 PPCODE: 892 PPCODE:
833{ 893{
834 int fd = s_fileno_croak (fh, 0); 894 int fd = s_fileno_croak (fh, 0);
835 dREQ; 895 dREQ;
836 896
… …
844 REQ_SEND (req); 904 REQ_SEND (req);
845} 905}
846 906
847void 907void
848aio_close (SV *fh, SV *callback=&PL_sv_undef) 908aio_close (SV *fh, SV *callback=&PL_sv_undef)
849 PROTOTYPE: $;$
850 PPCODE: 909 PPCODE:
851{ 910{
852 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 911 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
853 int fd = s_fileno_croak (fh, 0); 912 int fd = s_fileno_croak (fh, 0);
854 dREQ; 913 dREQ;
… …
876void 935void
877aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 936aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
878 ALIAS: 937 ALIAS:
879 aio_read = EIO_READ 938 aio_read = EIO_READ
880 aio_write = EIO_WRITE 939 aio_write = EIO_WRITE
881 PROTOTYPE: $$$$$;$
882 PPCODE: 940 PPCODE:
883{ 941{
884 STRLEN svlen; 942 STRLEN svlen;
885 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 943 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
886 char *svptr = SvPVbyte (data, svlen); 944 char *svptr = SvPVbyte (data, svlen);
… …
927 } 985 }
928} 986}
929 987
930void 988void
931aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 989aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
932 PROTOTYPE: $$;$
933 PPCODE: 990 PPCODE:
934{ 991{
935 SV *data; 992 SV *data;
936 dREQ; 993 dREQ;
937 994
… …
942 REQ_SEND; 999 REQ_SEND;
943} 1000}
944 1001
945void 1002void
946aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1003aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
947 PROTOTYPE: $$$$;$
948 PPCODE: 1004 PPCODE:
949{ 1005{
950 int ifd = s_fileno_croak (in_fh , 0); 1006 int ifd = s_fileno_croak (in_fh , 0);
951 int ofd = s_fileno_croak (out_fh, 1); 1007 int ofd = s_fileno_croak (out_fh, 1);
952 dREQ; 1008 dREQ;
… …
962 REQ_SEND; 1018 REQ_SEND;
963} 1019}
964 1020
965void 1021void
966aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1022aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
967 PROTOTYPE: $$$;$
968 PPCODE: 1023 PPCODE:
969{ 1024{
970 int fd = s_fileno_croak (fh, 0); 1025 int fd = s_fileno_croak (fh, 0);
971 dREQ; 1026 dREQ;
972 1027
… …
1173void 1228void
1174aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1229aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1175 ALIAS: 1230 ALIAS:
1176 aio_mtouch = EIO_MTOUCH 1231 aio_mtouch = EIO_MTOUCH
1177 aio_msync = EIO_MSYNC 1232 aio_msync = EIO_MSYNC
1178 PROTOTYPE: $$$$;$
1179 PPCODE: 1233 PPCODE:
1180{ 1234{
1181 STRLEN svlen; 1235 STRLEN svlen;
1236 char *svptr = SvPVbyte (data, svlen);
1182 UV len = SvUV (length); 1237 UV len = SvUV (length);
1183 char *svptr = SvPVbyte (data, svlen);
1184 1238
1185 if (offset < 0) 1239 if (offset < 0)
1186 offset += svlen; 1240 offset += svlen;
1187 1241
1188 if (offset < 0 || offset > svlen) 1242 if (offset < 0 || offset > svlen)
… …
1193 1247
1194 { 1248 {
1195 dREQ; 1249 dREQ;
1196 1250
1197 req->type = ix; 1251 req->type = ix;
1198 req->size = len;
1199 req->sv2 = SvREFCNT_inc (data); 1252 req->sv2 = SvREFCNT_inc (data);
1200 req->ptr2 = (char *)svptr + offset; 1253 req->ptr2 = (char *)svptr + offset;
1254 req->size = len;
1201 req->int1 = flags; 1255 req->int1 = flags;
1202 1256
1203 REQ_SEND; 1257 REQ_SEND;
1204 } 1258 }
1205} 1259}
1206 1260
1207void 1261void
1262aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1263 PPCODE:
1264{
1265 STRLEN svlen;
1266 char *svptr = SvPVbyte (data, svlen);
1267 UV len = SvUV (length);
1268
1269 if (offset < 0)
1270 offset += svlen;
1271
1272 if (offset < 0 || offset > svlen)
1273 croak ("offset outside of scalar");
1274
1275 if (!SvOK (length) || len + offset > svlen)
1276 len = svlen - offset;
1277
1278 {
1279 dREQ;
1280
1281 req->type = EIO_MLOCK;
1282 req->sv2 = SvREFCNT_inc (data);
1283 req->ptr2 = (char *)svptr + offset;
1284 req->size = len;
1285
1286 REQ_SEND;
1287 }
1288}
1289
1290void
1291aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req->type = EIO_MLOCKALL;
1297 req->int1 = flags;
1298
1299 REQ_SEND;
1300}
1301
1302void
1208aio_busy (double delay, SV *callback=&PL_sv_undef) 1303aio_busy (double delay, SV *callback=&PL_sv_undef)
1209 PPCODE: 1304 PPCODE:
1210{ 1305{
1211 dREQ; 1306 dREQ;
1212 1307
… …
1216 REQ_SEND; 1311 REQ_SEND;
1217} 1312}
1218 1313
1219void 1314void
1220aio_group (SV *callback=&PL_sv_undef) 1315aio_group (SV *callback=&PL_sv_undef)
1221 PROTOTYPE: ;$
1222 PPCODE: 1316 PPCODE:
1223{ 1317{
1224 dREQ; 1318 dREQ;
1225 1319
1226 req->type = EIO_GROUP; 1320 req->type = EIO_GROUP;
… …
1243 REQ_SEND; 1337 REQ_SEND;
1244} 1338}
1245 1339
1246int 1340int
1247aioreq_pri (int pri = 0) 1341aioreq_pri (int pri = 0)
1248 PROTOTYPE: ;$
1249 CODE: 1342 CODE:
1250 RETVAL = next_pri; 1343 RETVAL = next_pri;
1251 if (items > 0) 1344 if (items > 0)
1252 { 1345 {
1253 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1346 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1265 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1358 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1266 next_pri = nice; 1359 next_pri = nice;
1267 1360
1268void 1361void
1269flush () 1362flush ()
1270 PROTOTYPE:
1271 CODE: 1363 CODE:
1272 while (eio_nreqs ()) 1364 while (eio_nreqs ())
1273 { 1365 {
1274 poll_wait (); 1366 poll_wait ();
1275 poll_cb (); 1367 poll_cb ();
1276 } 1368 }
1277 1369
1278int 1370int
1279poll() 1371poll ()
1280 PROTOTYPE:
1281 CODE: 1372 CODE:
1282 poll_wait (); 1373 poll_wait ();
1283 RETVAL = poll_cb (); 1374 RETVAL = poll_cb ();
1284 OUTPUT: 1375 OUTPUT:
1285 RETVAL 1376 RETVAL
1286 1377
1287int 1378int
1288poll_fileno() 1379poll_fileno ()
1289 PROTOTYPE:
1290 CODE: 1380 CODE:
1291 RETVAL = s_epipe_fd (&respipe); 1381 RETVAL = s_epipe_fd (&respipe);
1292 OUTPUT: 1382 OUTPUT:
1293 RETVAL 1383 RETVAL
1294 1384
1295int 1385int
1296poll_cb(...) 1386poll_cb (...)
1297 PROTOTYPE: 1387 PROTOTYPE:
1298 CODE: 1388 CODE:
1299 RETVAL = poll_cb (); 1389 RETVAL = poll_cb ();
1300 OUTPUT: 1390 OUTPUT:
1301 RETVAL 1391 RETVAL
1302 1392
1303void 1393void
1304poll_wait() 1394poll_wait ()
1305 PROTOTYPE:
1306 CODE: 1395 CODE:
1307 poll_wait (); 1396 poll_wait ();
1308 1397
1309int 1398int
1310nreqs() 1399nreqs ()
1311 PROTOTYPE:
1312 CODE: 1400 CODE:
1313 RETVAL = eio_nreqs (); 1401 RETVAL = eio_nreqs ();
1314 OUTPUT: 1402 OUTPUT:
1315 RETVAL 1403 RETVAL
1316 1404
1317int 1405int
1318nready() 1406nready ()
1319 PROTOTYPE:
1320 CODE: 1407 CODE:
1321 RETVAL = eio_nready (); 1408 RETVAL = eio_nready ();
1322 OUTPUT: 1409 OUTPUT:
1323 RETVAL 1410 RETVAL
1324 1411
1325int 1412int
1326npending() 1413npending ()
1327 PROTOTYPE:
1328 CODE: 1414 CODE:
1329 RETVAL = eio_npending (); 1415 RETVAL = eio_npending ();
1330 OUTPUT: 1416 OUTPUT:
1331 RETVAL 1417 RETVAL
1332 1418
1333int 1419int
1334nthreads() 1420nthreads ()
1335 PROTOTYPE:
1336 CODE: 1421 CODE:
1337 RETVAL = eio_nthreads (); 1422 RETVAL = eio_nthreads ();
1338 OUTPUT: 1423 OUTPUT:
1339 RETVAL 1424 RETVAL
1340 1425
1341int 1426int
1342fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1427fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1343 PROTOTYPE: $$$$
1344 CODE: 1428 CODE:
1345#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1346 RETVAL = posix_fadvise (fh, offset, length, advice); 1429 RETVAL = posix_fadvise (fh, offset, length, advice);
1347#else
1348 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1349#endif
1350 OUTPUT: 1430 OUTPUT:
1351 RETVAL 1431 RETVAL
1352 1432
1353ssize_t 1433ssize_t
1354sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1434sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1355 PROTOTYPE: $$$$
1356 CODE: 1435 CODE:
1357 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1436 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1358 OUTPUT: 1437 OUTPUT:
1359 RETVAL 1438 RETVAL
1360 1439
1361void 1440void
1362mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1441mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1442 PPCODE:
1365 sv_unmagic (scalar, MMAP_MAGIC); 1443 sv_unmagic (scalar, MMAP_MAGIC);
1366{ 1444{
1367 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1445 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1368 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1446 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369 if (addr == (void *)-1) 1447 if (addr == (void *)-1)
1370 XSRETURN_NO; 1448 XSRETURN_NO;
1371 1449
1450 sv_force_normal (scalar);
1451
1372 /* we store the length in mg_obj, as namlen is I32 :/ */ 1452 /* we store the length in mg_obj, as namlen is I32 :/ */
1373 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1453 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374 ->mg_obj = (SV *)length; 1454 ->mg_obj = (SV *)length;
1375 1455
1376 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1456 SvUPGRADE (scalar, SVt_PV); /* nop... */
1457
1377 if (!(prot & PROT_WRITE)) 1458 if (!(prot & PROT_WRITE))
1378 SvREADONLY_on (scalar); 1459 SvREADONLY_on (scalar);
1460
1461 if (SvLEN (scalar))
1462 Safefree (SvPVX (scalar));
1379 1463
1380 SvPVX (scalar) = (char *)addr; 1464 SvPVX (scalar) = (char *)addr;
1381 SvCUR_set (scalar, length); 1465 SvCUR_set (scalar, length);
1382 SvLEN_set (scalar, 0); 1466 SvLEN_set (scalar, 0);
1383 SvPOK_only (scalar); 1467 SvPOK_only (scalar);
… …
1385 XSRETURN_YES; 1469 XSRETURN_YES;
1386} 1470}
1387 1471
1388void 1472void
1389munmap (SV *scalar) 1473munmap (SV *scalar)
1390 PROTOTYPE: $
1391 CODE: 1474 CODE:
1392 sv_unmagic (scalar, MMAP_MAGIC); 1475 sv_unmagic (scalar, MMAP_MAGIC);
1393 1476
1394int 1477int
1395mlockall (int flags) 1478madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1396 PROTOTYPE: $ 1479 ALIAS:
1480 mprotect = 1
1397 CODE: 1481 CODE:
1482{
1483 STRLEN svlen;
1484 void *addr = SvPVbyte (scalar, svlen);
1485 size_t len = SvUV (length);
1486
1487 if (offset < 0)
1488 offset += svlen;
1489
1490 if (offset < 0 || offset > svlen)
1491 croak ("offset outside of scalar");
1492
1493 if (!SvOK (length) || len + offset > svlen)
1494 len = svlen - offset;
1495
1496 addr = (void *)(((intptr_t)addr) + offset);
1497 eio_page_align (&addr, &len);
1498
1499 switch (ix)
1500 {
1501 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1502 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1503 }
1504}
1505 OUTPUT:
1506 RETVAL
1507
1508int
1509munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1510 CODE:
1511{
1512 STRLEN svlen;
1513 void *addr = SvPVbyte (scalar, svlen);
1514 size_t len = SvUV (length);
1515
1516 if (offset < 0)
1517 offset += svlen;
1518
1519 if (offset < 0 || offset > svlen)
1520 croak ("offset outside of scalar");
1521
1522 if (!SvOK (length) || len + offset > svlen)
1523 len = svlen - offset;
1524
1525 addr = (void *)(((intptr_t)addr) + offset);
1526 eio_page_align (&addr, &len);
1398#if _POSIX_MEMLOCK 1527#if _POSIX_MEMLOCK
1399#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1528 RETVAL = munlock (addr, len);
1400 extern int mallopt (int, int);
1401 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1402#endif
1403 mlockall (flags);
1404#else 1529#else
1405 RETVAL = -1; 1530 RETVAL = ((errno = ENOSYS), -1);
1406 errno = ENOSYS;
1407#endif 1531#endif
1532}
1408 OUTPUT: 1533 OUTPUT:
1409 RETVAL 1534 RETVAL
1410 1535
1411int 1536int
1412munlockall () 1537munlockall ()
1413 PROTOTYPE:
1414 CODE: 1538 CODE:
1415#if _POSIX_MEMLOCK 1539#if _POSIX_MEMLOCK
1416 munlockall (); 1540 munlockall ();
1417#else 1541#else
1418 RETVAL = -1; 1542 RETVAL = -1;

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