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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 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;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
316 ENTER; 348 ENTER;
317 SAVETMPS; 349 SAVETMPS;
318 PUSHMARK (SP); 350 PUSHMARK (SP);
319 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 SvIOK_only (sv_result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
320 365
321 switch (req->type) 366 switch (req->type)
322 { 367 {
323 case EIO_READDIR: 368 case EIO_READDIR:
324 { 369 {
… …
469 case EIO_LSTAT: 514 case EIO_LSTAT:
470 case EIO_FSTAT: 515 case EIO_FSTAT:
471 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
472 PL_laststatval = req->result; 517 PL_laststatval = req->result;
473 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
475 break; 520 break;
476 521
477 case EIO_READ: 522 case EIO_READ:
478 { 523 {
479 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 524 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
481 SvPOK_only (req->sv2); 526 SvPOK_only (req->sv2);
482 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
483 PUSHs (sv_2mortal (newSViv (req->result))); 528 PUSHs (sv_result);
484 } 529 }
485 break; 530 break;
486 531
487 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488 if (req->result > 0) 533 if (req->result > 0)
489 req->result = 0; 534 SvIV_set (sv_result, 0);
490 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
491 536
492 default: 537 default:
493 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
494 break; 539 break;
495 } 540 }
496 541
497 errno = req->errorno; 542 errno = req->errorno;
498 543
499 PUTBACK; 544 PUTBACK;
500 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501 SPAGAIN; 546 SPAGAIN;
547
548 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
549 SvREFCNT_dec (sv_result);
550 else
551 sv_result_cache = sv_result;
502 552
503 FREETMPS; 553 FREETMPS;
504 LEAVE; 554 LEAVE;
505 555
506 PUTBACK; 556 PUTBACK;
… …
589#if !_POSIX_MAPPED_FILES 639#if !_POSIX_MAPPED_FILES
590# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591# define munmap(addr,length) (errno = ENOSYS, -1) 641# define munmap(addr,length) (errno = ENOSYS, -1)
592#endif 642#endif
593 643
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
594#define MMAP_MAGIC PERL_MAGIC_ext 653#define MMAP_MAGIC PERL_MAGIC_ext
595 654
596static int 655static int
597mmap_free (pTHX_ SV *sv, MAGIC *mg) 656mmap_free (pTHX_ SV *sv, MAGIC *mg)
598{ 657{
… …
601 errno = old_errno; 660 errno = old_errno;
602 661
603 mg->mg_obj = 0; /* just in case */ 662 mg->mg_obj = 0; /* just in case */
604 663
605 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
606 SvCUR_set (sv, 0); 669 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0; 670 SvPVX (sv) = 0;
609 SvOK_off (sv); 671 SvOK_off (sv);
610 672
611 return 0; 673 return 0;
612} 674}
… …
662# define const_eio(name) { # name, (IV) EIO_ ## name }, 724# define const_eio(name) { # name, (IV) EIO_ ## name },
663 const_iv (EXDEV) 725 const_iv (EXDEV)
664 const_iv (ENOSYS) 726 const_iv (ENOSYS)
665 const_iv (O_RDONLY) 727 const_iv (O_RDONLY)
666 const_iv (O_WRONLY) 728 const_iv (O_WRONLY)
729 const_iv (O_RDWR)
667 const_iv (O_CREAT) 730 const_iv (O_CREAT)
668 const_iv (O_TRUNC) 731 const_iv (O_TRUNC)
732 const_iv (O_EXCL)
733 const_iv (O_APPEND)
669#ifndef _WIN32 734#ifndef _WIN32
670 const_iv (S_IFIFO) 735 const_iv (S_IFIFO)
671#endif 736#endif
672 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) 737 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 738 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 739 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 740 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 741 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 742 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
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)
678 749
679 const_iv (ST_RDONLY) 750 const_iv (ST_RDONLY)
680 const_iv (ST_NOSUID) 751 const_iv (ST_NOSUID)
681 const_iv (ST_NODEV) 752 const_iv (ST_NODEV)
682 const_iv (ST_NOEXEC) 753 const_iv (ST_NOEXEC)
… …
687 const_iv (ST_IMMUTABLE) 758 const_iv (ST_IMMUTABLE)
688 const_iv (ST_NOATIME) 759 const_iv (ST_NOATIME)
689 const_iv (ST_NODIRATIME) 760 const_iv (ST_NODIRATIME)
690 const_iv (ST_RELATIME) 761 const_iv (ST_RELATIME)
691 762
763 const_iv (PROT_NONE)
692 const_iv (PROT_EXEC) 764 const_iv (PROT_EXEC)
693 const_iv (PROT_NONE)
694 const_iv (PROT_READ) 765 const_iv (PROT_READ)
695 const_iv (PROT_WRITE) 766 const_iv (PROT_WRITE)
696 767
697 /*const_iv (MAP_FIXED)*/ 768 /*const_iv (MAP_FIXED)*/
698 const_iv (MAP_PRIVATE) 769 const_iv (MAP_PRIVATE)
… …
704 const_iv (MAP_LOCKED) 775 const_iv (MAP_LOCKED)
705 const_iv (MAP_NORESERVE) 776 const_iv (MAP_NORESERVE)
706 const_iv (MAP_POPULATE) 777 const_iv (MAP_POPULATE)
707 const_iv (MAP_NONBLOCK) 778 const_iv (MAP_NONBLOCK)
708 779
709 const_iv (MCL_FUTURE) 780 const_eio (MCL_FUTURE)
710 const_iv (MCL_CURRENT) 781 const_eio (MCL_CURRENT)
711 782
712 const_eio (MS_ASYNC) 783 const_eio (MS_ASYNC)
713 const_eio (MS_INVALIDATE) 784 const_eio (MS_INVALIDATE)
714 const_eio (MS_SYNC) 785 const_eio (MS_SYNC)
715 786
… …
789 CODE: 860 CODE:
790 max_outstanding = maxreqs; 861 max_outstanding = maxreqs;
791 862
792void 863void
793aio_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)
794 PROTOTYPE: $$$;$
795 PPCODE: 865 PPCODE:
796{ 866{
797 dREQ; 867 dREQ;
798 868
799 req->type = EIO_OPEN; 869 req->type = EIO_OPEN;
… …
805 REQ_SEND; 875 REQ_SEND;
806} 876}
807 877
808void 878void
809aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 879aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810 PROTOTYPE: $;$
811 ALIAS: 880 ALIAS:
812 aio_fsync = EIO_FSYNC 881 aio_fsync = EIO_FSYNC
813 aio_fdatasync = EIO_FDATASYNC 882 aio_fdatasync = EIO_FDATASYNC
814 PPCODE: 883 PPCODE:
815{ 884{
… …
823 REQ_SEND (req); 892 REQ_SEND (req);
824} 893}
825 894
826void 895void
827aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 896aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828 PROTOTYPE: $$$$;$
829 PPCODE: 897 PPCODE:
830{ 898{
831 int fd = s_fileno_croak (fh, 0); 899 int fd = s_fileno_croak (fh, 0);
832 dREQ; 900 dREQ;
833 901
… …
841 REQ_SEND (req); 909 REQ_SEND (req);
842} 910}
843 911
844void 912void
845aio_close (SV *fh, SV *callback=&PL_sv_undef) 913aio_close (SV *fh, SV *callback=&PL_sv_undef)
846 PROTOTYPE: $;$
847 PPCODE: 914 PPCODE:
848{ 915{
849 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 916 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850 int fd = s_fileno_croak (fh, 0); 917 int fd = s_fileno_croak (fh, 0);
851 dREQ; 918 dREQ;
… …
873void 940void
874aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 941aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875 ALIAS: 942 ALIAS:
876 aio_read = EIO_READ 943 aio_read = EIO_READ
877 aio_write = EIO_WRITE 944 aio_write = EIO_WRITE
878 PROTOTYPE: $$$$$;$
879 PPCODE: 945 PPCODE:
880{ 946{
881 STRLEN svlen; 947 STRLEN svlen;
882 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 948 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883 char *svptr = SvPVbyte (data, svlen); 949 char *svptr = SvPVbyte (data, svlen);
… …
924 } 990 }
925} 991}
926 992
927void 993void
928aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 994aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
929 PROTOTYPE: $$;$
930 PPCODE: 995 PPCODE:
931{ 996{
932 SV *data; 997 SV *data;
933 dREQ; 998 dREQ;
934 999
… …
939 REQ_SEND; 1004 REQ_SEND;
940} 1005}
941 1006
942void 1007void
943aio_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)
944 PROTOTYPE: $$$$;$
945 PPCODE: 1009 PPCODE:
946{ 1010{
947 int ifd = s_fileno_croak (in_fh , 0); 1011 int ifd = s_fileno_croak (in_fh , 0);
948 int ofd = s_fileno_croak (out_fh, 1); 1012 int ofd = s_fileno_croak (out_fh, 1);
949 dREQ; 1013 dREQ;
… …
959 REQ_SEND; 1023 REQ_SEND;
960} 1024}
961 1025
962void 1026void
963aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1027aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964 PROTOTYPE: $$$;$
965 PPCODE: 1028 PPCODE:
966{ 1029{
967 int fd = s_fileno_croak (fh, 0); 1030 int fd = s_fileno_croak (fh, 0);
968 dREQ; 1031 dREQ;
969 1032
… …
1170void 1233void
1171aio_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)
1172 ALIAS: 1235 ALIAS:
1173 aio_mtouch = EIO_MTOUCH 1236 aio_mtouch = EIO_MTOUCH
1174 aio_msync = EIO_MSYNC 1237 aio_msync = EIO_MSYNC
1175 PROTOTYPE: $$$$;$
1176 PPCODE: 1238 PPCODE:
1177{ 1239{
1178 STRLEN svlen; 1240 STRLEN svlen;
1241 char *svptr = SvPVbyte (data, svlen);
1179 UV len = SvUV (length); 1242 UV len = SvUV (length);
1180 char *svptr = SvPVbyte (data, svlen);
1181 1243
1182 if (offset < 0) 1244 if (offset < 0)
1183 offset += svlen; 1245 offset += svlen;
1184 1246
1185 if (offset < 0 || offset > svlen) 1247 if (offset < 0 || offset > svlen)
… …
1190 1252
1191 { 1253 {
1192 dREQ; 1254 dREQ;
1193 1255
1194 req->type = ix; 1256 req->type = ix;
1195 req->size = len;
1196 req->sv2 = SvREFCNT_inc (data); 1257 req->sv2 = SvREFCNT_inc (data);
1197 req->ptr2 = (char *)svptr + offset; 1258 req->ptr2 = (char *)svptr + offset;
1259 req->size = len;
1198 req->int1 = flags; 1260 req->int1 = flags;
1199 1261
1200 REQ_SEND; 1262 REQ_SEND;
1201 } 1263 }
1202} 1264}
1203 1265
1204void 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
1205aio_busy (double delay, SV *callback=&PL_sv_undef) 1308aio_busy (double delay, SV *callback=&PL_sv_undef)
1206 PPCODE: 1309 PPCODE:
1207{ 1310{
1208 dREQ; 1311 dREQ;
1209 1312
… …
1213 REQ_SEND; 1316 REQ_SEND;
1214} 1317}
1215 1318
1216void 1319void
1217aio_group (SV *callback=&PL_sv_undef) 1320aio_group (SV *callback=&PL_sv_undef)
1218 PROTOTYPE: ;$
1219 PPCODE: 1321 PPCODE:
1220{ 1322{
1221 dREQ; 1323 dREQ;
1222 1324
1223 req->type = EIO_GROUP; 1325 req->type = EIO_GROUP;
… …
1240 REQ_SEND; 1342 REQ_SEND;
1241} 1343}
1242 1344
1243int 1345int
1244aioreq_pri (int pri = 0) 1346aioreq_pri (int pri = 0)
1245 PROTOTYPE: ;$
1246 CODE: 1347 CODE:
1247 RETVAL = next_pri; 1348 RETVAL = next_pri;
1248 if (items > 0) 1349 if (items > 0)
1249 { 1350 {
1250 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1351 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1262 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1363 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263 next_pri = nice; 1364 next_pri = nice;
1264 1365
1265void 1366void
1266flush () 1367flush ()
1267 PROTOTYPE:
1268 CODE: 1368 CODE:
1269 while (eio_nreqs ()) 1369 while (eio_nreqs ())
1270 { 1370 {
1271 poll_wait (); 1371 poll_wait ();
1272 poll_cb (); 1372 poll_cb ();
1273 } 1373 }
1274 1374
1275int 1375int
1276poll() 1376poll ()
1277 PROTOTYPE:
1278 CODE: 1377 CODE:
1279 poll_wait (); 1378 poll_wait ();
1280 RETVAL = poll_cb (); 1379 RETVAL = poll_cb ();
1281 OUTPUT: 1380 OUTPUT:
1282 RETVAL 1381 RETVAL
1283 1382
1284int 1383int
1285poll_fileno() 1384poll_fileno ()
1286 PROTOTYPE:
1287 CODE: 1385 CODE:
1288 RETVAL = s_epipe_fd (&respipe); 1386 RETVAL = s_epipe_fd (&respipe);
1289 OUTPUT: 1387 OUTPUT:
1290 RETVAL 1388 RETVAL
1291 1389
1292int 1390int
1293poll_cb(...) 1391poll_cb (...)
1294 PROTOTYPE: 1392 PROTOTYPE:
1295 CODE: 1393 CODE:
1296 RETVAL = poll_cb (); 1394 RETVAL = poll_cb ();
1297 OUTPUT: 1395 OUTPUT:
1298 RETVAL 1396 RETVAL
1299 1397
1300void 1398void
1301poll_wait() 1399poll_wait ()
1302 PROTOTYPE:
1303 CODE: 1400 CODE:
1304 poll_wait (); 1401 poll_wait ();
1305 1402
1306int 1403int
1307nreqs() 1404nreqs ()
1308 PROTOTYPE:
1309 CODE: 1405 CODE:
1310 RETVAL = eio_nreqs (); 1406 RETVAL = eio_nreqs ();
1311 OUTPUT: 1407 OUTPUT:
1312 RETVAL 1408 RETVAL
1313 1409
1314int 1410int
1315nready() 1411nready ()
1316 PROTOTYPE:
1317 CODE: 1412 CODE:
1318 RETVAL = eio_nready (); 1413 RETVAL = eio_nready ();
1319 OUTPUT: 1414 OUTPUT:
1320 RETVAL 1415 RETVAL
1321 1416
1322int 1417int
1323npending() 1418npending ()
1324 PROTOTYPE:
1325 CODE: 1419 CODE:
1326 RETVAL = eio_npending (); 1420 RETVAL = eio_npending ();
1327 OUTPUT: 1421 OUTPUT:
1328 RETVAL 1422 RETVAL
1329 1423
1330int 1424int
1331nthreads() 1425nthreads ()
1332 PROTOTYPE:
1333 CODE: 1426 CODE:
1334 RETVAL = eio_nthreads (); 1427 RETVAL = eio_nthreads ();
1335 OUTPUT: 1428 OUTPUT:
1336 RETVAL 1429 RETVAL
1337 1430
1338int 1431int
1339fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1432fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340 PROTOTYPE: $$$$
1341 CODE: 1433 CODE:
1342#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343 RETVAL = posix_fadvise (fh, offset, length, advice); 1434 RETVAL = posix_fadvise (fh, offset, length, advice);
1344#else
1345 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346#endif
1347 OUTPUT: 1435 OUTPUT:
1348 RETVAL 1436 RETVAL
1349 1437
1350ssize_t 1438ssize_t
1351sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1439sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352 PROTOTYPE: $$$$
1353 CODE: 1440 CODE:
1354 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1441 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355 OUTPUT: 1442 OUTPUT:
1356 RETVAL 1443 RETVAL
1357 1444
1358void 1445void
1359mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1446mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360 PROTOTYPE: $$$$$;$
1361 PPCODE: 1447 PPCODE:
1362 sv_unmagic (scalar, MMAP_MAGIC); 1448 sv_unmagic (scalar, MMAP_MAGIC);
1363{ 1449{
1364 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;
1365 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1451 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366 if (addr == (void *)-1) 1452 if (addr == (void *)-1)
1367 XSRETURN_NO; 1453 XSRETURN_NO;
1368 1454
1455 sv_force_normal (scalar);
1456
1369 /* we store the length in mg_obj, as namlen is I32 :/ */ 1457 /* we store the length in mg_obj, as namlen is I32 :/ */
1370 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1458 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371 ->mg_obj = (SV *)length; 1459 ->mg_obj = (SV *)length;
1372 1460
1373 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1461 SvUPGRADE (scalar, SVt_PV); /* nop... */
1462
1374 if (!(prot & PROT_WRITE)) 1463 if (!(prot & PROT_WRITE))
1375 SvREADONLY_on (scalar); 1464 SvREADONLY_on (scalar);
1465
1466 if (SvLEN (scalar))
1467 Safefree (SvPVX (scalar));
1376 1468
1377 SvPVX (scalar) = (char *)addr; 1469 SvPVX (scalar) = (char *)addr;
1378 SvCUR_set (scalar, length); 1470 SvCUR_set (scalar, length);
1379 SvLEN_set (scalar, 0); 1471 SvLEN_set (scalar, 0);
1380 SvPOK_only (scalar); 1472 SvPOK_only (scalar);
… …
1382 XSRETURN_YES; 1474 XSRETURN_YES;
1383} 1475}
1384 1476
1385void 1477void
1386munmap (SV *scalar) 1478munmap (SV *scalar)
1387 PROTOTYPE: $
1388 CODE: 1479 CODE:
1389 sv_unmagic (scalar, MMAP_MAGIC); 1480 sv_unmagic (scalar, MMAP_MAGIC);
1390 1481
1391int 1482int
1392mlockall (int flags) 1483madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393 PROTOTYPE: $ 1484 ALIAS:
1485 mprotect = 1
1394 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);
1395#if _POSIX_MEMLOCK 1532#if _POSIX_MEMLOCK_RANGE
1396#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1533 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 1534#else
1402 RETVAL = -1; 1535 RETVAL = ((errno = ENOSYS), -1);
1403 errno = ENOSYS;
1404#endif 1536#endif
1537}
1405 OUTPUT: 1538 OUTPUT:
1406 RETVAL 1539 RETVAL
1407 1540
1408int 1541int
1409munlockall () 1542munlockall ()
1410 PROTOTYPE:
1411 CODE: 1543 CODE:
1412#if _POSIX_MEMLOCK 1544#if _POSIX_MEMLOCK
1413 munlockall (); 1545 munlockall ();
1414#else 1546#else
1415 RETVAL = -1; 1547 RETVAL = -1;

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