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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.162 by root, Sun Jan 10 23:05:12 2010 UTC vs.
Revision 1.176 by root, Thu Dec 2 10:04:47 2010 UTC

… …
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_MAPPED_FILES
22# include <sys/mman.h> 22# include <sys/mman.h>
23#endif
24
25#if !_POSIX_MAPPED_FILES
26# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
27# define munmap(addr,length) (errno = ENOSYS, -1)
28#endif 23#endif
29 24
30/* perl namespace pollution */ 25/* perl namespace pollution */
31#undef VERSION 26#undef VERSION
32 27
… …
123 STRLEN stroffset; \ 118 STRLEN stroffset; \
124 SV *self; 119 SV *self;
125 120
126#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
127 122
123#include "libeio/config.h"
128#include "libeio/eio.h" 124#include "libeio/eio.h"
129 125
130#ifndef POSIX_FADV_NORMAL 126#ifndef POSIX_FADV_NORMAL
131# define POSIX_FADV_NORMAL 0 127# define POSIX_FADV_NORMAL 0
132# define NO_FADVISE 1
133#endif 128#endif
134#ifndef POSIX_FADV_SEQUENTIAL 129#ifndef POSIX_FADV_SEQUENTIAL
135# define POSIX_FADV_SEQUENTIAL 0 130# define POSIX_FADV_SEQUENTIAL 0
136#endif 131#endif
137#ifndef POSIX_FADV_RANDOM 132#ifndef POSIX_FADV_RANDOM
… …
145#endif 140#endif
146#ifndef POSIX_FADV_DONTNEED 141#ifndef POSIX_FADV_DONTNEED
147# define POSIX_FADV_DONTNEED 0 142# define POSIX_FADV_DONTNEED 0
148#endif 143#endif
149 144
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
150#ifndef ST_NODEV 182#ifndef ST_NODEV
151# define ST_NODEV 0 183# define ST_NODEV 0
152#endif 184#endif
153#ifndef ST_NOEXEC 185#ifndef ST_NOEXEC
154# define ST_NOEXEC 0 186# define ST_NOEXEC 0
… …
174#ifndef ST_NODIRATIME 206#ifndef ST_NODIRATIME
175# define ST_NODIRATIME 0 207# define ST_NODIRATIME 0
176#endif 208#endif
177#ifndef ST_RELATIME 209#ifndef ST_RELATIME
178# define ST_RELATIME 0 210# define ST_RELATIME 0
179#endif
180
181#ifndef MCL_CURRENT
182# define MCL_CURRENT 0
183#endif
184#ifndef MCL_FUTURE
185# define MCL_FUTURE 0
186#endif 211#endif
187 212
188#ifndef MAP_ANONYMOUS 213#ifndef MAP_ANONYMOUS
189# ifdef MAP_ANON 214# ifdef MAP_ANON
190# define MAP_ANONYMOUS MAP_ANON 215# define MAP_ANONYMOUS MAP_ANON
… …
309 } 334 }
310} 335}
311 336
312static int req_invoke (eio_req *req) 337static int req_invoke (eio_req *req)
313{ 338{
314 dSP;
315
316 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
317 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
318 341
319 if (!EIO_CANCELLED (req) && req->callback) 342 if (!EIO_CANCELLED (req) && req->callback)
320 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
321 ENTER; 348 ENTER;
322 SAVETMPS; 349 SAVETMPS;
323 PUSHMARK (SP); 350 PUSHMARK (SP);
324 EXTEND (SP, 1); 351 EXTEND (SP, 1);
352
353 /* do not recreate the result IV from scratch each time */
354 if (expect_true (sv_result_cache))
355 {
356 sv_result = sv_result_cache; sv_result_cache = 0;
357 SvIV_set (sv_result, req->result);
358 }
359 else
360 {
361 sv_result = newSViv (req->result);
362 SvREADONLY_on (sv_result);
363 }
325 364
326 switch (req->type) 365 switch (req->type)
327 { 366 {
328 case EIO_READDIR: 367 case EIO_READDIR:
329 { 368 {
… …
474 case EIO_LSTAT: 513 case EIO_LSTAT:
475 case EIO_FSTAT: 514 case EIO_FSTAT:
476 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 515 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
477 PL_laststatval = req->result; 516 PL_laststatval = req->result;
478 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 517 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
479 PUSHs (sv_2mortal (newSViv (req->result))); 518 PUSHs (sv_result);
480 break; 519 break;
481 520
482 case EIO_READ: 521 case EIO_READ:
483 { 522 {
484 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 523 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
485 *SvEND (req->sv2) = 0; 524 *SvEND (req->sv2) = 0;
486 SvPOK_only (req->sv2); 525 SvPOK_only (req->sv2);
487 SvSETMAGIC (req->sv2); 526 SvSETMAGIC (req->sv2);
488 PUSHs (sv_2mortal (newSViv (req->result))); 527 PUSHs (sv_result);
489 } 528 }
490 break; 529 break;
491 530
492 case EIO_DUP2: 531 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
493 if (req->result > 0) 532 if (req->result > 0)
494 req->result = 0; 533 SvIV_set (sv_result, 0);
495 /* FALLTHROUGH */ 534 /* FALLTHROUGH */
496 535
497 default: 536 default:
498 PUSHs (sv_2mortal (newSViv (req->result))); 537 PUSHs (sv_result);
499 break; 538 break;
500 } 539 }
501 540
502 errno = req->errorno; 541 errno = req->errorno;
503 542
504 PUTBACK; 543 PUTBACK;
505 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 544 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
506 SPAGAIN; 545 SPAGAIN;
546
547 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
548 SvREFCNT_dec (sv_result);
549 else
550 sv_result_cache = sv_result;
507 551
508 FREETMPS; 552 FREETMPS;
509 LEAVE; 553 LEAVE;
510 554
511 PUTBACK; 555 PUTBACK;
… …
589 create_respipe (); 633 create_respipe ();
590} 634}
591 635
592/*****************************************************************************/ 636/*****************************************************************************/
593 637
638#if !_POSIX_MAPPED_FILES
639# define mmap(addr,length,prot,flags,fd,offs) (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
647#endif
648
594#define MMAP_MAGIC PERL_MAGIC_ext 649#define MMAP_MAGIC PERL_MAGIC_ext
595 650
596static int 651static int
597mmap_free (pTHX_ SV *sv, MAGIC *mg) 652mmap_free (pTHX_ SV *sv, MAGIC *mg)
598{ 653{
… …
601 errno = old_errno; 656 errno = old_errno;
602 657
603 mg->mg_obj = 0; /* just in case */ 658 mg->mg_obj = 0; /* just in case */
604 659
605 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
606 SvCUR_set (sv, 0); 665 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0; 666 SvPVX (sv) = 0;
609 SvOK_off (sv); 667 SvOK_off (sv);
610 668
611 return 0; 669 return 0;
612} 670}
… …
662# define const_eio(name) { # name, (IV) EIO_ ## name }, 720# define const_eio(name) { # name, (IV) EIO_ ## name },
663 const_iv (EXDEV) 721 const_iv (EXDEV)
664 const_iv (ENOSYS) 722 const_iv (ENOSYS)
665 const_iv (O_RDONLY) 723 const_iv (O_RDONLY)
666 const_iv (O_WRONLY) 724 const_iv (O_WRONLY)
725 const_iv (O_RDWR)
667 const_iv (O_CREAT) 726 const_iv (O_CREAT)
668 const_iv (O_TRUNC) 727 const_iv (O_TRUNC)
728 const_iv (O_EXCL)
729 const_iv (O_APPEND)
669#ifndef _WIN32 730#ifndef _WIN32
670 const_iv (S_IFIFO) 731 const_iv (S_IFIFO)
671#endif 732#endif
672 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) 733 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 734 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 735 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 736 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 737 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 738 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
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)
678 745
679 const_iv (ST_RDONLY) 746 const_iv (ST_RDONLY)
680 const_iv (ST_NOSUID) 747 const_iv (ST_NOSUID)
681 const_iv (ST_NODEV) 748 const_iv (ST_NODEV)
682 const_iv (ST_NOEXEC) 749 const_iv (ST_NOEXEC)
… …
687 const_iv (ST_IMMUTABLE) 754 const_iv (ST_IMMUTABLE)
688 const_iv (ST_NOATIME) 755 const_iv (ST_NOATIME)
689 const_iv (ST_NODIRATIME) 756 const_iv (ST_NODIRATIME)
690 const_iv (ST_RELATIME) 757 const_iv (ST_RELATIME)
691 758
759 const_iv (PROT_NONE)
692 const_iv (PROT_EXEC) 760 const_iv (PROT_EXEC)
693 const_iv (PROT_NONE)
694 const_iv (PROT_READ) 761 const_iv (PROT_READ)
695 const_iv (PROT_WRITE) 762 const_iv (PROT_WRITE)
696 763
697 /*const_iv (MAP_FIXED)*/ 764 /*const_iv (MAP_FIXED)*/
698 const_iv (MAP_PRIVATE) 765 const_iv (MAP_PRIVATE)
… …
704 const_iv (MAP_LOCKED) 771 const_iv (MAP_LOCKED)
705 const_iv (MAP_NORESERVE) 772 const_iv (MAP_NORESERVE)
706 const_iv (MAP_POPULATE) 773 const_iv (MAP_POPULATE)
707 const_iv (MAP_NONBLOCK) 774 const_iv (MAP_NONBLOCK)
708 775
709 const_iv (MCL_FUTURE) 776 const_eio (MCL_FUTURE)
710 const_iv (MCL_CURRENT) 777 const_eio (MCL_CURRENT)
711 778
712 const_eio (MS_ASYNC) 779 const_eio (MS_ASYNC)
713 const_eio (MS_INVALIDATE) 780 const_eio (MS_INVALIDATE)
714 const_eio (MS_SYNC) 781 const_eio (MS_SYNC)
715 782
… …
789 CODE: 856 CODE:
790 max_outstanding = maxreqs; 857 max_outstanding = maxreqs;
791 858
792void 859void
793aio_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)
794 PROTOTYPE: $$$;$
795 PPCODE: 861 PPCODE:
796{ 862{
797 dREQ; 863 dREQ;
798 864
799 req->type = EIO_OPEN; 865 req->type = EIO_OPEN;
… …
805 REQ_SEND; 871 REQ_SEND;
806} 872}
807 873
808void 874void
809aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 875aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810 PROTOTYPE: $;$
811 ALIAS: 876 ALIAS:
812 aio_fsync = EIO_FSYNC 877 aio_fsync = EIO_FSYNC
813 aio_fdatasync = EIO_FDATASYNC 878 aio_fdatasync = EIO_FDATASYNC
814 PPCODE: 879 PPCODE:
815{ 880{
… …
823 REQ_SEND (req); 888 REQ_SEND (req);
824} 889}
825 890
826void 891void
827aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 892aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828 PROTOTYPE: $$$$;$
829 PPCODE: 893 PPCODE:
830{ 894{
831 int fd = s_fileno_croak (fh, 0); 895 int fd = s_fileno_croak (fh, 0);
832 dREQ; 896 dREQ;
833 897
… …
841 REQ_SEND (req); 905 REQ_SEND (req);
842} 906}
843 907
844void 908void
845aio_close (SV *fh, SV *callback=&PL_sv_undef) 909aio_close (SV *fh, SV *callback=&PL_sv_undef)
846 PROTOTYPE: $;$
847 PPCODE: 910 PPCODE:
848{ 911{
849 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 912 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850 int fd = s_fileno_croak (fh, 0); 913 int fd = s_fileno_croak (fh, 0);
851 dREQ; 914 dREQ;
… …
873void 936void
874aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 937aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875 ALIAS: 938 ALIAS:
876 aio_read = EIO_READ 939 aio_read = EIO_READ
877 aio_write = EIO_WRITE 940 aio_write = EIO_WRITE
878 PROTOTYPE: $$$$$;$
879 PPCODE: 941 PPCODE:
880{ 942{
881 STRLEN svlen; 943 STRLEN svlen;
882 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 944 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883 char *svptr = SvPVbyte (data, svlen); 945 char *svptr = SvPVbyte (data, svlen);
… …
924 } 986 }
925} 987}
926 988
927void 989void
928aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 990aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
929 PROTOTYPE: $$;$
930 PPCODE: 991 PPCODE:
931{ 992{
932 SV *data; 993 SV *data;
933 dREQ; 994 dREQ;
934 995
… …
939 REQ_SEND; 1000 REQ_SEND;
940} 1001}
941 1002
942void 1003void
943aio_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)
944 PROTOTYPE: $$$$;$
945 PPCODE: 1005 PPCODE:
946{ 1006{
947 int ifd = s_fileno_croak (in_fh , 0); 1007 int ifd = s_fileno_croak (in_fh , 0);
948 int ofd = s_fileno_croak (out_fh, 1); 1008 int ofd = s_fileno_croak (out_fh, 1);
949 dREQ; 1009 dREQ;
… …
959 REQ_SEND; 1019 REQ_SEND;
960} 1020}
961 1021
962void 1022void
963aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1023aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964 PROTOTYPE: $$$;$
965 PPCODE: 1024 PPCODE:
966{ 1025{
967 int fd = s_fileno_croak (fh, 0); 1026 int fd = s_fileno_croak (fh, 0);
968 dREQ; 1027 dREQ;
969 1028
… …
1170void 1229void
1171aio_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)
1172 ALIAS: 1231 ALIAS:
1173 aio_mtouch = EIO_MTOUCH 1232 aio_mtouch = EIO_MTOUCH
1174 aio_msync = EIO_MSYNC 1233 aio_msync = EIO_MSYNC
1175 PROTOTYPE: $$$$;$
1176 PPCODE: 1234 PPCODE:
1177{ 1235{
1178 STRLEN svlen; 1236 STRLEN svlen;
1237 char *svptr = SvPVbyte (data, svlen);
1179 UV len = SvUV (length); 1238 UV len = SvUV (length);
1180 char *svptr = SvPVbyte (data, svlen);
1181 1239
1182 if (offset < 0) 1240 if (offset < 0)
1183 offset += svlen; 1241 offset += svlen;
1184 1242
1185 if (offset < 0 || offset > svlen) 1243 if (offset < 0 || offset > svlen)
… …
1190 1248
1191 { 1249 {
1192 dREQ; 1250 dREQ;
1193 1251
1194 req->type = ix; 1252 req->type = ix;
1195 req->size = len;
1196 req->sv2 = SvREFCNT_inc (data); 1253 req->sv2 = SvREFCNT_inc (data);
1197 req->ptr2 = (char *)svptr + offset; 1254 req->ptr2 = (char *)svptr + offset;
1255 req->size = len;
1198 req->int1 = flags; 1256 req->int1 = flags;
1199 1257
1200 REQ_SEND; 1258 REQ_SEND;
1201 } 1259 }
1202} 1260}
1203 1261
1204void 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
1205aio_busy (double delay, SV *callback=&PL_sv_undef) 1304aio_busy (double delay, SV *callback=&PL_sv_undef)
1206 PPCODE: 1305 PPCODE:
1207{ 1306{
1208 dREQ; 1307 dREQ;
1209 1308
… …
1213 REQ_SEND; 1312 REQ_SEND;
1214} 1313}
1215 1314
1216void 1315void
1217aio_group (SV *callback=&PL_sv_undef) 1316aio_group (SV *callback=&PL_sv_undef)
1218 PROTOTYPE: ;$
1219 PPCODE: 1317 PPCODE:
1220{ 1318{
1221 dREQ; 1319 dREQ;
1222 1320
1223 req->type = EIO_GROUP; 1321 req->type = EIO_GROUP;
… …
1240 REQ_SEND; 1338 REQ_SEND;
1241} 1339}
1242 1340
1243int 1341int
1244aioreq_pri (int pri = 0) 1342aioreq_pri (int pri = 0)
1245 PROTOTYPE: ;$
1246 CODE: 1343 CODE:
1247 RETVAL = next_pri; 1344 RETVAL = next_pri;
1248 if (items > 0) 1345 if (items > 0)
1249 { 1346 {
1250 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1347 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1262 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1359 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263 next_pri = nice; 1360 next_pri = nice;
1264 1361
1265void 1362void
1266flush () 1363flush ()
1267 PROTOTYPE:
1268 CODE: 1364 CODE:
1269 while (eio_nreqs ()) 1365 while (eio_nreqs ())
1270 { 1366 {
1271 poll_wait (); 1367 poll_wait ();
1272 poll_cb (); 1368 poll_cb ();
1273 } 1369 }
1274 1370
1275int 1371int
1276poll() 1372poll ()
1277 PROTOTYPE:
1278 CODE: 1373 CODE:
1279 poll_wait (); 1374 poll_wait ();
1280 RETVAL = poll_cb (); 1375 RETVAL = poll_cb ();
1281 OUTPUT: 1376 OUTPUT:
1282 RETVAL 1377 RETVAL
1283 1378
1284int 1379int
1285poll_fileno() 1380poll_fileno ()
1286 PROTOTYPE:
1287 CODE: 1381 CODE:
1288 RETVAL = s_epipe_fd (&respipe); 1382 RETVAL = s_epipe_fd (&respipe);
1289 OUTPUT: 1383 OUTPUT:
1290 RETVAL 1384 RETVAL
1291 1385
1292int 1386int
1293poll_cb(...) 1387poll_cb (...)
1294 PROTOTYPE: 1388 PROTOTYPE:
1295 CODE: 1389 CODE:
1296 RETVAL = poll_cb (); 1390 RETVAL = poll_cb ();
1297 OUTPUT: 1391 OUTPUT:
1298 RETVAL 1392 RETVAL
1299 1393
1300void 1394void
1301poll_wait() 1395poll_wait ()
1302 PROTOTYPE:
1303 CODE: 1396 CODE:
1304 poll_wait (); 1397 poll_wait ();
1305 1398
1306int 1399int
1307nreqs() 1400nreqs ()
1308 PROTOTYPE:
1309 CODE: 1401 CODE:
1310 RETVAL = eio_nreqs (); 1402 RETVAL = eio_nreqs ();
1311 OUTPUT: 1403 OUTPUT:
1312 RETVAL 1404 RETVAL
1313 1405
1314int 1406int
1315nready() 1407nready ()
1316 PROTOTYPE:
1317 CODE: 1408 CODE:
1318 RETVAL = eio_nready (); 1409 RETVAL = eio_nready ();
1319 OUTPUT: 1410 OUTPUT:
1320 RETVAL 1411 RETVAL
1321 1412
1322int 1413int
1323npending() 1414npending ()
1324 PROTOTYPE:
1325 CODE: 1415 CODE:
1326 RETVAL = eio_npending (); 1416 RETVAL = eio_npending ();
1327 OUTPUT: 1417 OUTPUT:
1328 RETVAL 1418 RETVAL
1329 1419
1330int 1420int
1331nthreads() 1421nthreads ()
1332 PROTOTYPE:
1333 CODE: 1422 CODE:
1334 RETVAL = eio_nthreads (); 1423 RETVAL = eio_nthreads ();
1335 OUTPUT: 1424 OUTPUT:
1336 RETVAL 1425 RETVAL
1337 1426
1338int 1427int
1339fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1428fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340 PROTOTYPE: $$$$
1341 CODE: 1429 CODE:
1342#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343 RETVAL = posix_fadvise (fh, offset, length, advice); 1430 RETVAL = posix_fadvise (fh, offset, length, advice);
1344#else
1345 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346#endif
1347 OUTPUT: 1431 OUTPUT:
1348 RETVAL 1432 RETVAL
1349 1433
1350ssize_t 1434ssize_t
1351sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1435sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352 PROTOTYPE: $$$$
1353 CODE: 1436 CODE:
1354 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1437 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355 OUTPUT: 1438 OUTPUT:
1356 RETVAL 1439 RETVAL
1357 1440
1358void 1441void
1359mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1442mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360 PROTOTYPE: $$$$$;$
1361 PPCODE: 1443 PPCODE:
1362 sv_unmagic (scalar, MMAP_MAGIC); 1444 sv_unmagic (scalar, MMAP_MAGIC);
1363{ 1445{
1364 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;
1365 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1447 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366 if (addr == (void *)-1) 1448 if (addr == (void *)-1)
1367 XSRETURN_NO; 1449 XSRETURN_NO;
1368 1450
1451 sv_force_normal (scalar);
1452
1369 /* we store the length in mg_obj, as namlen is I32 :/ */ 1453 /* we store the length in mg_obj, as namlen is I32 :/ */
1370 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1454 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371 ->mg_obj = (SV *)length; 1455 ->mg_obj = (SV *)length;
1372 1456
1373 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1457 SvUPGRADE (scalar, SVt_PV); /* nop... */
1458
1374 if (!(prot & PROT_WRITE)) 1459 if (!(prot & PROT_WRITE))
1375 SvREADONLY_on (scalar); 1460 SvREADONLY_on (scalar);
1461
1462 if (SvLEN (scalar))
1463 Safefree (SvPVX (scalar));
1376 1464
1377 SvPVX (scalar) = (char *)addr; 1465 SvPVX (scalar) = (char *)addr;
1378 SvCUR_set (scalar, length); 1466 SvCUR_set (scalar, length);
1379 SvLEN_set (scalar, 0); 1467 SvLEN_set (scalar, 0);
1380 SvPOK_only (scalar); 1468 SvPOK_only (scalar);
… …
1382 XSRETURN_YES; 1470 XSRETURN_YES;
1383} 1471}
1384 1472
1385void 1473void
1386munmap (SV *scalar) 1474munmap (SV *scalar)
1387 PROTOTYPE: $
1388 CODE: 1475 CODE:
1389 sv_unmagic (scalar, MMAP_MAGIC); 1476 sv_unmagic (scalar, MMAP_MAGIC);
1390 1477
1391int 1478int
1392mlockall (int flags) 1479madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393 PROTOTYPE: $ 1480 ALIAS:
1481 mprotect = 1
1394 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);
1395#if _POSIX_MEMLOCK 1528#if _POSIX_MEMLOCK
1396#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1529 RETVAL = munlock (addr, len);
1397 extern int mallopt (int, int);
1398 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399#endif
1400 mlockall (flags);
1401#else 1530#else
1402 RETVAL = -1; 1531 RETVAL = ((errno = ENOSYS), -1);
1403 errno = ENOSYS;
1404#endif 1532#endif
1533}
1405 OUTPUT: 1534 OUTPUT:
1406 RETVAL 1535 RETVAL
1407 1536
1408int 1537int
1409munlockall () 1538munlockall ()
1410 PROTOTYPE:
1411 CODE: 1539 CODE:
1412#if _POSIX_MEMLOCK 1540#if _POSIX_MEMLOCK
1413 munlockall (); 1541 munlockall ();
1414#else 1542#else
1415 RETVAL = -1; 1543 RETVAL = -1;

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