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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 1.178 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 !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;
… …
587/*****************************************************************************/ 637/*****************************************************************************/
588 638
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)
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
592#endif 648#endif
593 649
594#define MMAP_MAGIC PERL_MAGIC_ext 650#define MMAP_MAGIC PERL_MAGIC_ext
595 651
596static int 652static int
… …
601 errno = old_errno; 657 errno = old_errno;
602 658
603 mg->mg_obj = 0; /* just in case */ 659 mg->mg_obj = 0; /* just in case */
604 660
605 SvREADONLY_off (sv); 661 SvREADONLY_off (sv);
662
663 if (SvPVX (sv) != mg->mg_ptr)
664 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
665
606 SvCUR_set (sv, 0); 666 SvCUR_set (sv, 0);
607 SvLEN_set (sv, 0);
608 SvPVX (sv) = 0; 667 SvPVX (sv) = 0;
609 SvOK_off (sv); 668 SvOK_off (sv);
610 669
611 return 0; 670 return 0;
612} 671}
… …
677 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 736 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
678 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 737 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
679 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 738 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
680 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 739 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
681 740
741 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
742 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
743 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
744 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
745 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
746
682 const_iv (ST_RDONLY) 747 const_iv (ST_RDONLY)
683 const_iv (ST_NOSUID) 748 const_iv (ST_NOSUID)
684 const_iv (ST_NODEV) 749 const_iv (ST_NODEV)
685 const_iv (ST_NOEXEC) 750 const_iv (ST_NOEXEC)
686 const_iv (ST_SYNCHRONOUS) 751 const_iv (ST_SYNCHRONOUS)
… …
690 const_iv (ST_IMMUTABLE) 755 const_iv (ST_IMMUTABLE)
691 const_iv (ST_NOATIME) 756 const_iv (ST_NOATIME)
692 const_iv (ST_NODIRATIME) 757 const_iv (ST_NODIRATIME)
693 const_iv (ST_RELATIME) 758 const_iv (ST_RELATIME)
694 759
760 const_iv (PROT_NONE)
695 const_iv (PROT_EXEC) 761 const_iv (PROT_EXEC)
696 const_iv (PROT_NONE)
697 const_iv (PROT_READ) 762 const_iv (PROT_READ)
698 const_iv (PROT_WRITE) 763 const_iv (PROT_WRITE)
699 764
700 /*const_iv (MAP_FIXED)*/ 765 /*const_iv (MAP_FIXED)*/
701 const_iv (MAP_PRIVATE) 766 const_iv (MAP_PRIVATE)
… …
707 const_iv (MAP_LOCKED) 772 const_iv (MAP_LOCKED)
708 const_iv (MAP_NORESERVE) 773 const_iv (MAP_NORESERVE)
709 const_iv (MAP_POPULATE) 774 const_iv (MAP_POPULATE)
710 const_iv (MAP_NONBLOCK) 775 const_iv (MAP_NONBLOCK)
711 776
712 const_iv (MCL_FUTURE) 777 const_eio (MCL_FUTURE)
713 const_iv (MCL_CURRENT) 778 const_eio (MCL_CURRENT)
714 779
715 const_eio (MS_ASYNC) 780 const_eio (MS_ASYNC)
716 const_eio (MS_INVALIDATE) 781 const_eio (MS_INVALIDATE)
717 const_eio (MS_SYNC) 782 const_eio (MS_SYNC)
718 783
… …
792 CODE: 857 CODE:
793 max_outstanding = maxreqs; 858 max_outstanding = maxreqs;
794 859
795void 860void
796aio_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)
797 PROTOTYPE: $$$;$
798 PPCODE: 862 PPCODE:
799{ 863{
800 dREQ; 864 dREQ;
801 865
802 req->type = EIO_OPEN; 866 req->type = EIO_OPEN;
… …
808 REQ_SEND; 872 REQ_SEND;
809} 873}
810 874
811void 875void
812aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 876aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
813 PROTOTYPE: $;$
814 ALIAS: 877 ALIAS:
815 aio_fsync = EIO_FSYNC 878 aio_fsync = EIO_FSYNC
816 aio_fdatasync = EIO_FDATASYNC 879 aio_fdatasync = EIO_FDATASYNC
817 PPCODE: 880 PPCODE:
818{ 881{
… …
826 REQ_SEND (req); 889 REQ_SEND (req);
827} 890}
828 891
829void 892void
830aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 893aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
831 PROTOTYPE: $$$$;$
832 PPCODE: 894 PPCODE:
833{ 895{
834 int fd = s_fileno_croak (fh, 0); 896 int fd = s_fileno_croak (fh, 0);
835 dREQ; 897 dREQ;
836 898
… …
844 REQ_SEND (req); 906 REQ_SEND (req);
845} 907}
846 908
847void 909void
848aio_close (SV *fh, SV *callback=&PL_sv_undef) 910aio_close (SV *fh, SV *callback=&PL_sv_undef)
849 PROTOTYPE: $;$
850 PPCODE: 911 PPCODE:
851{ 912{
852 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 913 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
853 int fd = s_fileno_croak (fh, 0); 914 int fd = s_fileno_croak (fh, 0);
854 dREQ; 915 dREQ;
… …
876void 937void
877aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 938aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
878 ALIAS: 939 ALIAS:
879 aio_read = EIO_READ 940 aio_read = EIO_READ
880 aio_write = EIO_WRITE 941 aio_write = EIO_WRITE
881 PROTOTYPE: $$$$$;$
882 PPCODE: 942 PPCODE:
883{ 943{
884 STRLEN svlen; 944 STRLEN svlen;
885 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 945 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
886 char *svptr = SvPVbyte (data, svlen); 946 char *svptr = SvPVbyte (data, svlen);
… …
927 } 987 }
928} 988}
929 989
930void 990void
931aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 991aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
932 PROTOTYPE: $$;$
933 PPCODE: 992 PPCODE:
934{ 993{
935 SV *data; 994 SV *data;
936 dREQ; 995 dREQ;
937 996
… …
942 REQ_SEND; 1001 REQ_SEND;
943} 1002}
944 1003
945void 1004void
946aio_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)
947 PROTOTYPE: $$$$;$
948 PPCODE: 1006 PPCODE:
949{ 1007{
950 int ifd = s_fileno_croak (in_fh , 0); 1008 int ifd = s_fileno_croak (in_fh , 0);
951 int ofd = s_fileno_croak (out_fh, 1); 1009 int ofd = s_fileno_croak (out_fh, 1);
952 dREQ; 1010 dREQ;
… …
962 REQ_SEND; 1020 REQ_SEND;
963} 1021}
964 1022
965void 1023void
966aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1024aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
967 PROTOTYPE: $$$;$
968 PPCODE: 1025 PPCODE:
969{ 1026{
970 int fd = s_fileno_croak (fh, 0); 1027 int fd = s_fileno_croak (fh, 0);
971 dREQ; 1028 dREQ;
972 1029
… …
1173void 1230void
1174aio_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)
1175 ALIAS: 1232 ALIAS:
1176 aio_mtouch = EIO_MTOUCH 1233 aio_mtouch = EIO_MTOUCH
1177 aio_msync = EIO_MSYNC 1234 aio_msync = EIO_MSYNC
1178 PROTOTYPE: $$$$;$
1179 PPCODE: 1235 PPCODE:
1180{ 1236{
1181 STRLEN svlen; 1237 STRLEN svlen;
1238 char *svptr = SvPVbyte (data, svlen);
1182 UV len = SvUV (length); 1239 UV len = SvUV (length);
1183 char *svptr = SvPVbyte (data, svlen);
1184 1240
1185 if (offset < 0) 1241 if (offset < 0)
1186 offset += svlen; 1242 offset += svlen;
1187 1243
1188 if (offset < 0 || offset > svlen) 1244 if (offset < 0 || offset > svlen)
… …
1193 1249
1194 { 1250 {
1195 dREQ; 1251 dREQ;
1196 1252
1197 req->type = ix; 1253 req->type = ix;
1198 req->size = len;
1199 req->sv2 = SvREFCNT_inc (data); 1254 req->sv2 = SvREFCNT_inc (data);
1200 req->ptr2 = (char *)svptr + offset; 1255 req->ptr2 = (char *)svptr + offset;
1256 req->size = len;
1201 req->int1 = flags; 1257 req->int1 = flags;
1202 1258
1203 REQ_SEND; 1259 REQ_SEND;
1204 } 1260 }
1205} 1261}
1206 1262
1207void 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
1208aio_busy (double delay, SV *callback=&PL_sv_undef) 1305aio_busy (double delay, SV *callback=&PL_sv_undef)
1209 PPCODE: 1306 PPCODE:
1210{ 1307{
1211 dREQ; 1308 dREQ;
1212 1309
… …
1216 REQ_SEND; 1313 REQ_SEND;
1217} 1314}
1218 1315
1219void 1316void
1220aio_group (SV *callback=&PL_sv_undef) 1317aio_group (SV *callback=&PL_sv_undef)
1221 PROTOTYPE: ;$
1222 PPCODE: 1318 PPCODE:
1223{ 1319{
1224 dREQ; 1320 dREQ;
1225 1321
1226 req->type = EIO_GROUP; 1322 req->type = EIO_GROUP;
… …
1243 REQ_SEND; 1339 REQ_SEND;
1244} 1340}
1245 1341
1246int 1342int
1247aioreq_pri (int pri = 0) 1343aioreq_pri (int pri = 0)
1248 PROTOTYPE: ;$
1249 CODE: 1344 CODE:
1250 RETVAL = next_pri; 1345 RETVAL = next_pri;
1251 if (items > 0) 1346 if (items > 0)
1252 { 1347 {
1253 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1348 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1265 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1360 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1266 next_pri = nice; 1361 next_pri = nice;
1267 1362
1268void 1363void
1269flush () 1364flush ()
1270 PROTOTYPE:
1271 CODE: 1365 CODE:
1272 while (eio_nreqs ()) 1366 while (eio_nreqs ())
1273 { 1367 {
1274 poll_wait (); 1368 poll_wait ();
1275 poll_cb (); 1369 poll_cb ();
1276 } 1370 }
1277 1371
1278int 1372int
1279poll() 1373poll ()
1280 PROTOTYPE:
1281 CODE: 1374 CODE:
1282 poll_wait (); 1375 poll_wait ();
1283 RETVAL = poll_cb (); 1376 RETVAL = poll_cb ();
1284 OUTPUT: 1377 OUTPUT:
1285 RETVAL 1378 RETVAL
1286 1379
1287int 1380int
1288poll_fileno() 1381poll_fileno ()
1289 PROTOTYPE:
1290 CODE: 1382 CODE:
1291 RETVAL = s_epipe_fd (&respipe); 1383 RETVAL = s_epipe_fd (&respipe);
1292 OUTPUT: 1384 OUTPUT:
1293 RETVAL 1385 RETVAL
1294 1386
1295int 1387int
1296poll_cb(...) 1388poll_cb (...)
1297 PROTOTYPE: 1389 PROTOTYPE:
1298 CODE: 1390 CODE:
1299 RETVAL = poll_cb (); 1391 RETVAL = poll_cb ();
1300 OUTPUT: 1392 OUTPUT:
1301 RETVAL 1393 RETVAL
1302 1394
1303void 1395void
1304poll_wait() 1396poll_wait ()
1305 PROTOTYPE:
1306 CODE: 1397 CODE:
1307 poll_wait (); 1398 poll_wait ();
1308 1399
1309int 1400int
1310nreqs() 1401nreqs ()
1311 PROTOTYPE:
1312 CODE: 1402 CODE:
1313 RETVAL = eio_nreqs (); 1403 RETVAL = eio_nreqs ();
1314 OUTPUT: 1404 OUTPUT:
1315 RETVAL 1405 RETVAL
1316 1406
1317int 1407int
1318nready() 1408nready ()
1319 PROTOTYPE:
1320 CODE: 1409 CODE:
1321 RETVAL = eio_nready (); 1410 RETVAL = eio_nready ();
1322 OUTPUT: 1411 OUTPUT:
1323 RETVAL 1412 RETVAL
1324 1413
1325int 1414int
1326npending() 1415npending ()
1327 PROTOTYPE:
1328 CODE: 1416 CODE:
1329 RETVAL = eio_npending (); 1417 RETVAL = eio_npending ();
1330 OUTPUT: 1418 OUTPUT:
1331 RETVAL 1419 RETVAL
1332 1420
1333int 1421int
1334nthreads() 1422nthreads ()
1335 PROTOTYPE:
1336 CODE: 1423 CODE:
1337 RETVAL = eio_nthreads (); 1424 RETVAL = eio_nthreads ();
1338 OUTPUT: 1425 OUTPUT:
1339 RETVAL 1426 RETVAL
1340 1427
1341int 1428int
1342fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1429fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1343 PROTOTYPE: $$$$
1344 CODE: 1430 CODE:
1345#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1346 RETVAL = posix_fadvise (fh, offset, length, advice); 1431 RETVAL = posix_fadvise (fh, offset, length, advice);
1347#else
1348 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1349#endif
1350 OUTPUT: 1432 OUTPUT:
1351 RETVAL 1433 RETVAL
1352 1434
1353ssize_t 1435ssize_t
1354sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1436sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1355 PROTOTYPE: $$$$
1356 CODE: 1437 CODE:
1357 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1438 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1358 OUTPUT: 1439 OUTPUT:
1359 RETVAL 1440 RETVAL
1360 1441
1361void 1442void
1362mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1443mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1444 PPCODE:
1365 sv_unmagic (scalar, MMAP_MAGIC); 1445 sv_unmagic (scalar, MMAP_MAGIC);
1366{ 1446{
1367 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;
1368 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1448 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369 if (addr == (void *)-1) 1449 if (addr == (void *)-1)
1370 XSRETURN_NO; 1450 XSRETURN_NO;
1371 1451
1452 sv_force_normal (scalar);
1453
1372 /* we store the length in mg_obj, as namlen is I32 :/ */ 1454 /* we store the length in mg_obj, as namlen is I32 :/ */
1373 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) 1455 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374 ->mg_obj = (SV *)length; 1456 ->mg_obj = (SV *)length;
1375 1457
1376 SvUPGRADE (scalar, SVt_PV); /* nop... */ 1458 SvUPGRADE (scalar, SVt_PV); /* nop... */
1459
1377 if (!(prot & PROT_WRITE)) 1460 if (!(prot & PROT_WRITE))
1378 SvREADONLY_on (scalar); 1461 SvREADONLY_on (scalar);
1462
1463 if (SvLEN (scalar))
1464 Safefree (SvPVX (scalar));
1379 1465
1380 SvPVX (scalar) = (char *)addr; 1466 SvPVX (scalar) = (char *)addr;
1381 SvCUR_set (scalar, length); 1467 SvCUR_set (scalar, length);
1382 SvLEN_set (scalar, 0); 1468 SvLEN_set (scalar, 0);
1383 SvPOK_only (scalar); 1469 SvPOK_only (scalar);
… …
1385 XSRETURN_YES; 1471 XSRETURN_YES;
1386} 1472}
1387 1473
1388void 1474void
1389munmap (SV *scalar) 1475munmap (SV *scalar)
1390 PROTOTYPE: $
1391 CODE: 1476 CODE:
1392 sv_unmagic (scalar, MMAP_MAGIC); 1477 sv_unmagic (scalar, MMAP_MAGIC);
1393 1478
1394int 1479int
1395mlockall (int flags) 1480madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1396 PROTOTYPE: $ 1481 ALIAS:
1482 mprotect = 1
1397 CODE: 1483 CODE:
1484{
1485 STRLEN svlen;
1486 void *addr = SvPVbyte (scalar, svlen);
1487 size_t len = SvUV (length);
1488
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)
1496 len = svlen - offset;
1497
1498 addr = (void *)(((intptr_t)addr) + offset);
1499 eio_page_align (&addr, &len);
1500
1501 switch (ix)
1502 {
1503 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1504 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1505 }
1506}
1507 OUTPUT:
1508 RETVAL
1509
1510int
1511munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
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);
1398#if _POSIX_MEMLOCK 1529#if _POSIX_MEMLOCK_RANGE
1399#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1530 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 1531#else
1405 RETVAL = -1; 1532 RETVAL = ((errno = ENOSYS), -1);
1406 errno = ENOSYS;
1407#endif 1533#endif
1534}
1408 OUTPUT: 1535 OUTPUT:
1409 RETVAL 1536 RETVAL
1410 1537
1411int 1538int
1412munlockall () 1539munlockall ()
1413 PROTOTYPE:
1414 CODE: 1540 CODE:
1415#if _POSIX_MEMLOCK 1541#if _POSIX_MEMLOCK
1416 munlockall (); 1542 munlockall ();
1417#else 1543#else
1418 RETVAL = -1; 1544 RETVAL = -1;

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