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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.168 by root, Wed Aug 4 14:02:58 2010 UTC vs.
Revision 1.180 by root, Fri Feb 11 00:05:17 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
171#endif 208#endif
172#ifndef ST_RELATIME 209#ifndef ST_RELATIME
173# define ST_RELATIME 0 210# define ST_RELATIME 0
174#endif 211#endif
175 212
176#ifndef MCL_CURRENT 213#ifndef S_IFIFO
177# define MCL_CURRENT 0 214# define S_IFIFO 0
178#endif 215#endif
179#ifndef MCL_FUTURE 216#ifndef S_IFCHR
180# define MCL_FUTURE 0 217# define S_IFCHR 0
218#endif
219#ifndef S_IFBLK
220# define S_IFBLK 0
221#endif
222#ifndef S_IFLNK
223# define S_IFLNK 0
224#endif
225#ifndef S_IFREG
226# define S_IFREG 0
227#endif
228#ifndef S_IFDIR
229# define S_IFDIR 0
230#endif
231#ifndef S_IFWHT
232# define S_IFWHT 0
233#endif
234#ifndef S_IFSOCK
235# define S_IFSOCK 0
181#endif 236#endif
182 237
183#ifndef MAP_ANONYMOUS 238#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON 239# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON 240# define MAP_ANONYMOUS MAP_ANON
199#ifndef MAP_POPULATE 254#ifndef MAP_POPULATE
200# define MAP_POPULATE 0 255# define MAP_POPULATE 0
201#endif 256#endif
202#ifndef MAP_NONBLOCK 257#ifndef MAP_NONBLOCK
203# define MAP_NONBLOCK 0 258# define MAP_NONBLOCK 0
259#endif
260
261#ifndef makedev
262# define makedev(maj,min) (((maj) << 8) | (min))
263#endif
264#ifndef major
265# define major(dev) ((dev) >> 8)
266#endif
267#ifndef minor
268# define minor(dev) ((dev) & 0xff)
204#endif 269#endif
205 270
206#ifndef PAGESIZE 271#ifndef PAGESIZE
207# define PAGESIZE sysconf (_SC_PAGESIZE) 272# define PAGESIZE sysconf (_SC_PAGESIZE)
208#endif 273#endif
323 /* do not recreate the result IV from scratch each time */ 388 /* do not recreate the result IV from scratch each time */
324 if (expect_true (sv_result_cache)) 389 if (expect_true (sv_result_cache))
325 { 390 {
326 sv_result = sv_result_cache; sv_result_cache = 0; 391 sv_result = sv_result_cache; sv_result_cache = 0;
327 SvIV_set (sv_result, req->result); 392 SvIV_set (sv_result, req->result);
393 SvIOK_only (sv_result);
328 } 394 }
329 else 395 else
330 { 396 {
331 sv_result = newSViv (req->result); 397 sv_result = newSViv (req->result);
332 SvREADONLY_on (sv_result); 398 SvREADONLY_on (sv_result);
496 SvSETMAGIC (req->sv2); 562 SvSETMAGIC (req->sv2);
497 PUSHs (sv_result); 563 PUSHs (sv_result);
498 } 564 }
499 break; 565 break;
500 566
501 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */ 567 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502 if (req->result > 0) 568 if (req->result > 0)
503 SvIV_set (sv_result, 0); 569 SvIV_set (sv_result, 0);
504 /* FALLTHROUGH */ 570 /* FALLTHROUGH */
505 571
506 default: 572 default:
606/*****************************************************************************/ 672/*****************************************************************************/
607 673
608#if !_POSIX_MAPPED_FILES 674#if !_POSIX_MAPPED_FILES
609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 675# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610# define munmap(addr,length) (errno = ENOSYS, -1) 676# define munmap(addr,length) (errno = ENOSYS, -1)
677#endif
678
679#if !_POSIX_MEMORY_PROTECTION
680# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
681# define PROT_NONE 0
682# define PROT_WRITE 0
683# define MAP_PRIVATE 0
684# define MAP_SHARED 0
685# define MAP_FIXED 0
611#endif 686#endif
612 687
613#define MMAP_MAGIC PERL_MAGIC_ext 688#define MMAP_MAGIC PERL_MAGIC_ext
614 689
615static int 690static int
689 const_iv (O_RDWR) 764 const_iv (O_RDWR)
690 const_iv (O_CREAT) 765 const_iv (O_CREAT)
691 const_iv (O_TRUNC) 766 const_iv (O_TRUNC)
692 const_iv (O_EXCL) 767 const_iv (O_EXCL)
693 const_iv (O_APPEND) 768 const_iv (O_APPEND)
694#ifndef _WIN32 769
695 const_iv (S_IFIFO) 770 const_iv (S_IFIFO)
696#endif 771 const_iv (S_IFCHR)
772 const_iv (S_IFBLK)
773 const_iv (S_IFLNK)
774 const_iv (S_IFREG)
775 const_iv (S_IFDIR)
776 const_iv (S_IFWHT)
777 const_iv (S_IFSOCK)
778 const_iv (S_IFMT)
779
697 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) 780 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
698 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 781 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
699 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) 782 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
700 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 783 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
701 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 784 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
702 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 785 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
786
787 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
788 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
789 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
790 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
791 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
703 792
704 const_iv (ST_RDONLY) 793 const_iv (ST_RDONLY)
705 const_iv (ST_NOSUID) 794 const_iv (ST_NOSUID)
706 const_iv (ST_NODEV) 795 const_iv (ST_NODEV)
707 const_iv (ST_NOEXEC) 796 const_iv (ST_NOEXEC)
712 const_iv (ST_IMMUTABLE) 801 const_iv (ST_IMMUTABLE)
713 const_iv (ST_NOATIME) 802 const_iv (ST_NOATIME)
714 const_iv (ST_NODIRATIME) 803 const_iv (ST_NODIRATIME)
715 const_iv (ST_RELATIME) 804 const_iv (ST_RELATIME)
716 805
806 const_iv (PROT_NONE)
717 const_iv (PROT_EXEC) 807 const_iv (PROT_EXEC)
718 const_iv (PROT_NONE)
719 const_iv (PROT_READ) 808 const_iv (PROT_READ)
720 const_iv (PROT_WRITE) 809 const_iv (PROT_WRITE)
721 810
722 /*const_iv (MAP_FIXED)*/ 811 /*const_iv (MAP_FIXED)*/
723 const_iv (MAP_PRIVATE) 812 const_iv (MAP_PRIVATE)
729 const_iv (MAP_LOCKED) 818 const_iv (MAP_LOCKED)
730 const_iv (MAP_NORESERVE) 819 const_iv (MAP_NORESERVE)
731 const_iv (MAP_POPULATE) 820 const_iv (MAP_POPULATE)
732 const_iv (MAP_NONBLOCK) 821 const_iv (MAP_NONBLOCK)
733 822
734 const_iv (MCL_FUTURE) 823 const_eio (MCL_FUTURE)
735 const_iv (MCL_CURRENT) 824 const_eio (MCL_CURRENT)
736 825
737 const_eio (MS_ASYNC) 826 const_eio (MS_ASYNC)
738 const_eio (MS_INVALIDATE) 827 const_eio (MS_INVALIDATE)
739 const_eio (MS_SYNC) 828 const_eio (MS_SYNC)
740 829
814 CODE: 903 CODE:
815 max_outstanding = maxreqs; 904 max_outstanding = maxreqs;
816 905
817void 906void
818aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 907aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
819 PROTOTYPE: $$$;$
820 PPCODE: 908 PPCODE:
821{ 909{
822 dREQ; 910 dREQ;
823 911
824 req->type = EIO_OPEN; 912 req->type = EIO_OPEN;
830 REQ_SEND; 918 REQ_SEND;
831} 919}
832 920
833void 921void
834aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 922aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
835 PROTOTYPE: $;$
836 ALIAS: 923 ALIAS:
837 aio_fsync = EIO_FSYNC 924 aio_fsync = EIO_FSYNC
838 aio_fdatasync = EIO_FDATASYNC 925 aio_fdatasync = EIO_FDATASYNC
839 PPCODE: 926 PPCODE:
840{ 927{
848 REQ_SEND (req); 935 REQ_SEND (req);
849} 936}
850 937
851void 938void
852aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 939aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
853 PROTOTYPE: $$$$;$
854 PPCODE: 940 PPCODE:
855{ 941{
856 int fd = s_fileno_croak (fh, 0); 942 int fd = s_fileno_croak (fh, 0);
857 dREQ; 943 dREQ;
858 944
866 REQ_SEND (req); 952 REQ_SEND (req);
867} 953}
868 954
869void 955void
870aio_close (SV *fh, SV *callback=&PL_sv_undef) 956aio_close (SV *fh, SV *callback=&PL_sv_undef)
871 PROTOTYPE: $;$
872 PPCODE: 957 PPCODE:
873{ 958{
874 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 959 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
875 int fd = s_fileno_croak (fh, 0); 960 int fd = s_fileno_croak (fh, 0);
876 dREQ; 961 dREQ;
898void 983void
899aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 984aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
900 ALIAS: 985 ALIAS:
901 aio_read = EIO_READ 986 aio_read = EIO_READ
902 aio_write = EIO_WRITE 987 aio_write = EIO_WRITE
903 PROTOTYPE: $$$$$;$
904 PPCODE: 988 PPCODE:
905{ 989{
906 STRLEN svlen; 990 STRLEN svlen;
907 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 991 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
908 char *svptr = SvPVbyte (data, svlen); 992 char *svptr = SvPVbyte (data, svlen);
949 } 1033 }
950} 1034}
951 1035
952void 1036void
953aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1037aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
954 PROTOTYPE: $$;$
955 PPCODE: 1038 PPCODE:
956{ 1039{
957 SV *data; 1040 SV *data;
958 dREQ; 1041 dREQ;
959 1042
964 REQ_SEND; 1047 REQ_SEND;
965} 1048}
966 1049
967void 1050void
968aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1051aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
969 PROTOTYPE: $$$$;$
970 PPCODE: 1052 PPCODE:
971{ 1053{
972 int ifd = s_fileno_croak (in_fh , 0); 1054 int ifd = s_fileno_croak (in_fh , 0);
973 int ofd = s_fileno_croak (out_fh, 1); 1055 int ofd = s_fileno_croak (out_fh, 1);
974 dREQ; 1056 dREQ;
984 REQ_SEND; 1066 REQ_SEND;
985} 1067}
986 1068
987void 1069void
988aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1070aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
989 PROTOTYPE: $$$;$
990 PPCODE: 1071 PPCODE:
991{ 1072{
992 int fd = s_fileno_croak (fh, 0); 1073 int fd = s_fileno_croak (fh, 0);
993 dREQ; 1074 dREQ;
994 1075
1025 } 1106 }
1026 1107
1027 REQ_SEND; 1108 REQ_SEND;
1028} 1109}
1029 1110
1111UV
1112major (UV dev)
1113 ALIAS:
1114 minor = 1
1115 CODE:
1116 RETVAL = ix ? major (dev) : minor (dev);
1117 OUTPUT:
1118 RETVAL
1119
1120UV
1121makedev (UV maj, UV min)
1122 CODE:
1123 RETVAL = makedev (maj, min);
1124 OUTPUT:
1125 RETVAL
1126
1030void 1127void
1031aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1128aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1032 PPCODE: 1129 PPCODE:
1033{ 1130{
1034 dREQ; 1131 dREQ;
1195void 1292void
1196aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) 1293aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1197 ALIAS: 1294 ALIAS:
1198 aio_mtouch = EIO_MTOUCH 1295 aio_mtouch = EIO_MTOUCH
1199 aio_msync = EIO_MSYNC 1296 aio_msync = EIO_MSYNC
1200 PROTOTYPE: $$$$;$
1201 PPCODE: 1297 PPCODE:
1202{ 1298{
1203 STRLEN svlen; 1299 STRLEN svlen;
1300 char *svptr = SvPVbyte (data, svlen);
1204 UV len = SvUV (length); 1301 UV len = SvUV (length);
1205 char *svptr = SvPVbyte (data, svlen);
1206 1302
1207 if (offset < 0) 1303 if (offset < 0)
1208 offset += svlen; 1304 offset += svlen;
1209 1305
1210 if (offset < 0 || offset > svlen) 1306 if (offset < 0 || offset > svlen)
1215 1311
1216 { 1312 {
1217 dREQ; 1313 dREQ;
1218 1314
1219 req->type = ix; 1315 req->type = ix;
1220 req->size = len;
1221 req->sv2 = SvREFCNT_inc (data); 1316 req->sv2 = SvREFCNT_inc (data);
1222 req->ptr2 = (char *)svptr + offset; 1317 req->ptr2 = (char *)svptr + offset;
1318 req->size = len;
1223 req->int1 = flags; 1319 req->int1 = flags;
1224 1320
1225 REQ_SEND; 1321 REQ_SEND;
1226 } 1322 }
1227} 1323}
1228 1324
1229void 1325void
1326aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1327 PPCODE:
1328{
1329 STRLEN svlen;
1330 char *svptr = SvPVbyte (data, svlen);
1331 UV len = SvUV (length);
1332
1333 if (offset < 0)
1334 offset += svlen;
1335
1336 if (offset < 0 || offset > svlen)
1337 croak ("offset outside of scalar");
1338
1339 if (!SvOK (length) || len + offset > svlen)
1340 len = svlen - offset;
1341
1342 {
1343 dREQ;
1344
1345 req->type = EIO_MLOCK;
1346 req->sv2 = SvREFCNT_inc (data);
1347 req->ptr2 = (char *)svptr + offset;
1348 req->size = len;
1349
1350 REQ_SEND;
1351 }
1352}
1353
1354void
1355aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1356 PPCODE:
1357{
1358 dREQ;
1359
1360 req->type = EIO_MLOCKALL;
1361 req->int1 = flags;
1362
1363 REQ_SEND;
1364}
1365
1366void
1230aio_busy (double delay, SV *callback=&PL_sv_undef) 1367aio_busy (double delay, SV *callback=&PL_sv_undef)
1231 PPCODE: 1368 PPCODE:
1232{ 1369{
1233 dREQ; 1370 dREQ;
1234 1371
1238 REQ_SEND; 1375 REQ_SEND;
1239} 1376}
1240 1377
1241void 1378void
1242aio_group (SV *callback=&PL_sv_undef) 1379aio_group (SV *callback=&PL_sv_undef)
1243 PROTOTYPE: ;$
1244 PPCODE: 1380 PPCODE:
1245{ 1381{
1246 dREQ; 1382 dREQ;
1247 1383
1248 req->type = EIO_GROUP; 1384 req->type = EIO_GROUP;
1265 REQ_SEND; 1401 REQ_SEND;
1266} 1402}
1267 1403
1268int 1404int
1269aioreq_pri (int pri = 0) 1405aioreq_pri (int pri = 0)
1270 PROTOTYPE: ;$
1271 CODE: 1406 CODE:
1272 RETVAL = next_pri; 1407 RETVAL = next_pri;
1273 if (items > 0) 1408 if (items > 0)
1274 { 1409 {
1275 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1410 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1287 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1422 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1288 next_pri = nice; 1423 next_pri = nice;
1289 1424
1290void 1425void
1291flush () 1426flush ()
1292 PROTOTYPE:
1293 CODE: 1427 CODE:
1294 while (eio_nreqs ()) 1428 while (eio_nreqs ())
1295 { 1429 {
1296 poll_wait (); 1430 poll_wait ();
1297 poll_cb (); 1431 poll_cb ();
1298 } 1432 }
1299 1433
1300int 1434int
1301poll() 1435poll ()
1302 PROTOTYPE:
1303 CODE: 1436 CODE:
1304 poll_wait (); 1437 poll_wait ();
1305 RETVAL = poll_cb (); 1438 RETVAL = poll_cb ();
1306 OUTPUT: 1439 OUTPUT:
1307 RETVAL 1440 RETVAL
1308 1441
1309int 1442int
1310poll_fileno() 1443poll_fileno ()
1311 PROTOTYPE:
1312 CODE: 1444 CODE:
1313 RETVAL = s_epipe_fd (&respipe); 1445 RETVAL = s_epipe_fd (&respipe);
1314 OUTPUT: 1446 OUTPUT:
1315 RETVAL 1447 RETVAL
1316 1448
1317int 1449int
1318poll_cb(...) 1450poll_cb (...)
1319 PROTOTYPE: 1451 PROTOTYPE:
1320 CODE: 1452 CODE:
1321 RETVAL = poll_cb (); 1453 RETVAL = poll_cb ();
1322 OUTPUT: 1454 OUTPUT:
1323 RETVAL 1455 RETVAL
1324 1456
1325void 1457void
1326poll_wait() 1458poll_wait ()
1327 PROTOTYPE:
1328 CODE: 1459 CODE:
1329 poll_wait (); 1460 poll_wait ();
1330 1461
1331int 1462int
1332nreqs() 1463nreqs ()
1333 PROTOTYPE:
1334 CODE: 1464 CODE:
1335 RETVAL = eio_nreqs (); 1465 RETVAL = eio_nreqs ();
1336 OUTPUT: 1466 OUTPUT:
1337 RETVAL 1467 RETVAL
1338 1468
1339int 1469int
1340nready() 1470nready ()
1341 PROTOTYPE:
1342 CODE: 1471 CODE:
1343 RETVAL = eio_nready (); 1472 RETVAL = eio_nready ();
1344 OUTPUT: 1473 OUTPUT:
1345 RETVAL 1474 RETVAL
1346 1475
1347int 1476int
1348npending() 1477npending ()
1349 PROTOTYPE:
1350 CODE: 1478 CODE:
1351 RETVAL = eio_npending (); 1479 RETVAL = eio_npending ();
1352 OUTPUT: 1480 OUTPUT:
1353 RETVAL 1481 RETVAL
1354 1482
1355int 1483int
1356nthreads() 1484nthreads ()
1357 PROTOTYPE:
1358 CODE: 1485 CODE:
1359 RETVAL = eio_nthreads (); 1486 RETVAL = eio_nthreads ();
1360 OUTPUT: 1487 OUTPUT:
1361 RETVAL 1488 RETVAL
1362 1489
1363int 1490int
1364fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1491fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1365 PROTOTYPE: $$$$
1366 CODE: 1492 CODE:
1367#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1368 RETVAL = posix_fadvise (fh, offset, length, advice); 1493 RETVAL = posix_fadvise (fh, offset, length, advice);
1369#else
1370 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1371#endif
1372 OUTPUT: 1494 OUTPUT:
1373 RETVAL 1495 RETVAL
1374 1496
1375ssize_t 1497ssize_t
1376sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1498sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1377 PROTOTYPE: $$$$
1378 CODE: 1499 CODE:
1379 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1500 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1380 OUTPUT: 1501 OUTPUT:
1381 RETVAL 1502 RETVAL
1382 1503
1383void 1504void
1384mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1505mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1385 PROTOTYPE: $$$$$;$
1386 PPCODE: 1506 PPCODE:
1387 sv_unmagic (scalar, MMAP_MAGIC); 1507 sv_unmagic (scalar, MMAP_MAGIC);
1388{ 1508{
1389 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1509 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1390 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1510 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1413 XSRETURN_YES; 1533 XSRETURN_YES;
1414} 1534}
1415 1535
1416void 1536void
1417munmap (SV *scalar) 1537munmap (SV *scalar)
1418 PROTOTYPE: $
1419 CODE: 1538 CODE:
1420 sv_unmagic (scalar, MMAP_MAGIC); 1539 sv_unmagic (scalar, MMAP_MAGIC);
1421 1540
1422int 1541int
1423mlockall (int flags) 1542madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1424 PROTOTYPE: $ 1543 ALIAS:
1544 mprotect = 1
1425 CODE: 1545 CODE:
1546{
1547 STRLEN svlen;
1548 void *addr = SvPVbyte (scalar, svlen);
1549 size_t len = SvUV (length);
1550
1551 if (offset < 0)
1552 offset += svlen;
1553
1554 if (offset < 0 || offset > svlen)
1555 croak ("offset outside of scalar");
1556
1557 if (!SvOK (length) || len + offset > svlen)
1558 len = svlen - offset;
1559
1560 addr = (void *)(((intptr_t)addr) + offset);
1561 eio_page_align (&addr, &len);
1562
1563 switch (ix)
1564 {
1565 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1566 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1567 }
1568}
1569 OUTPUT:
1570 RETVAL
1571
1572int
1573munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1574 CODE:
1575{
1576 STRLEN svlen;
1577 void *addr = SvPVbyte (scalar, svlen);
1578 size_t len = SvUV (length);
1579
1580 if (offset < 0)
1581 offset += svlen;
1582
1583 if (offset < 0 || offset > svlen)
1584 croak ("offset outside of scalar");
1585
1586 if (!SvOK (length) || len + offset > svlen)
1587 len = svlen - offset;
1588
1589 addr = (void *)(((intptr_t)addr) + offset);
1590 eio_page_align (&addr, &len);
1426#if _POSIX_MEMLOCK 1591#if _POSIX_MEMLOCK_RANGE
1427#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 1592 RETVAL = munlock (addr, len);
1428 extern int mallopt (int, int);
1429 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1430#endif
1431 mlockall (flags);
1432#else 1593#else
1433 RETVAL = -1; 1594 RETVAL = ((errno = ENOSYS), -1);
1434 errno = ENOSYS;
1435#endif 1595#endif
1596}
1436 OUTPUT: 1597 OUTPUT:
1437 RETVAL 1598 RETVAL
1438 1599
1439int 1600int
1440munlockall () 1601munlockall ()
1441 PROTOTYPE:
1442 CODE: 1602 CODE:
1443#if _POSIX_MEMLOCK 1603#if _POSIX_MEMLOCK
1444 munlockall (); 1604 munlockall ();
1445#else 1605#else
1446 RETVAL = -1; 1606 RETVAL = -1;

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