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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.210 by root, Fri Apr 6 11:39:25 2012 UTC vs.
Revision 1.228 by root, Fri Jan 24 23:46:16 2014 UTC

… …
22#endif 22#endif
23 23
24#if __linux__ 24#if __linux__
25# include <linux/fs.h> 25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP 26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
27# include <linux/fiemap.h> 28# include <linux/fiemap.h>
28# define HAVE_FIEMAP 1 29# define HAVE_FIEMAP 1
29# endif 30# endif
30#endif 31#endif
31 32
… …
152#endif 153#endif
153#ifndef minor 154#ifndef minor
154# define minor(dev) ((dev) & 0xff) 155# define minor(dev) ((dev) & 0xff)
155#endif 156#endif
156 157
157#ifndef PAGESIZE 158#if PAGESIZE <= 0
158# define PAGESIZE sysconf (_SC_PAGESIZE) 159# define PAGESIZE sysconf (_SC_PAGESIZE)
159#endif 160#endif
160 161
161/*****************************************************************************/ 162/*****************************************************************************/
162 163
… …
164fiemap (eio_req *req) 165fiemap (eio_req *req)
165{ 166{
166 req->result = -1; 167 req->result = -1;
167 168
168#if HAVE_FIEMAP 169#if HAVE_FIEMAP
170 /* assume some c99 */
171 struct fiemap *fiemap = 0;
172 size_t end_offset;
173 int count = req->int3;
174
175 req->flags |= EIO_FLAG_PTR1_FREE;
176
177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
181
182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
183 errno = ENOMEM;
184 if (!fiemap)
185 return;
186
187 req->ptr1 = fiemap;
188
189 fiemap->fm_start = req->offs;
190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
193
194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
195 return;
196
197 if (req->int3 >= 0 /* not autosizing */
198 || !fiemap->fm_mapped_extents /* no more extents */
199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200 goto done;
201
202 /* else we have to loop -
203 * it would be tempting (actually I tried that first) to just query the
204 * number of extents needed, but linux often feels like not returning all
205 * extents, without telling us it left any out. this complicates
206 * this quite a bit.
207 */
208
209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210
169 for (;;) 211 for (;;)
170 { 212 {
171 int count = req->int3; 213 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
214 char scratch[3072];
215 struct fiemap *incmap = (struct fiemap *)scratch;
172 216
173 if (count < 0) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
174 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
175 struct fiemap fiemap; 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
220 incmap->fm_flags = fiemap->fm_flags;
221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
176 222
177 fiemap.fm_start = req->offs;
178 fiemap.fm_length = req->size;
179 fiemap.fm_flags = req->int2;
180 fiemap.fm_extent_count = 0;
181
182 if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap)) 223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183 return; 224 return;
184 225
185 count = fiemap.fm_mapped_extents; 226 if (!incmap->fm_mapped_extents)
186 } 227 goto done;
187 228
229 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
188 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); 230 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189 errno = ENOMEM; 231 errno = ENOMEM;
190 if (!fiemap) 232 if (!fiemap)
191 return; 233 return;
192 234
193 req->ptr1 = fiemap; 235 req->ptr1 = fiemap;
194 req->flags |= EIO_FLAG_PTR1_FREE;
195 236
196 fiemap->fm_start = req->offs; 237 for (count = 0; count < incmap->fm_mapped_extents; ++count)
197 fiemap->fm_length = req->size; 238 {
198 fiemap->fm_flags = req->int2; 239 struct fiemap_extent *e = incmap->fm_extents + count;
199 fiemap->fm_extent_count = count;
200 240
201 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap)) 241 if (e->fe_logical + e->fe_length >= end_offset)
202 return; 242 goto done;
203 243
204 if (req->int3 >= 0) 244 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
205 break; /* when not autosizing we are done */
206 245
207 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST) 246 if (e->fe_flags & FIEMAP_EXTENT_LAST)
208 break; /* autosizing successful, we are done */ 247 goto done;
209 248
210 free (fiemap); 249 }
211 } 250 }
212 251
252done:
213 req->result = 0; 253 req->result = 0;
214 254
215#else 255#else
216 errno = ENOSYS; 256 errno = ENOSYS;
217#endif 257#endif
… …
470#ifndef _WIN32 510#ifndef _WIN32
471 if (req->result >= 0) 511 if (req->result >= 0)
472 { 512 {
473 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); 513 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474 HV *hv = newHV (); 514 HV *hv = newHV ();
515 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
516 * chooses to make it a struct.
517 */
518 unsigned long fsid = 0;
519 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
475 520
476 rv = sv_2mortal (newRV_noinc ((SV *)hv)); 521 rv = sv_2mortal (newRV_noinc ((SV *)hv));
477 522
478 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0); 523 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
479 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0); 524 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
… …
481 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0); 526 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
482 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0); 527 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
483 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0); 528 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
484 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0); 529 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
485 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); 530 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
486 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0); 531 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
487 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); 532 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
488 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); 533 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489 } 534 }
490#endif 535#endif
491 536
… …
545 break; 590 break;
546 591
547 case EIO_CUSTOM: 592 case EIO_CUSTOM:
548 if (req->feed == fiemap) 593 if (req->feed == fiemap)
549 { 594 {
595#if HAVE_FIEMAP
550 if (!req->result) 596 if (!req->result)
551 { 597 {
552 struct fiemap *fiemap = (struct fiemap *)req->ptr1; 598 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
553 599
554 if (fiemap->fm_extent_count) 600 if (fiemap->fm_extent_count)
… …
575 { 621 {
576 SvIV_set (sv_result, fiemap->fm_mapped_extents); 622 SvIV_set (sv_result, fiemap->fm_mapped_extents);
577 PUSHs (sv_result); 623 PUSHs (sv_result);
578 } 624 }
579 } 625 }
626#endif
580 } 627 }
581 else 628 else
582 PUSHs (sv_result); 629 PUSHs (sv_result);
583 break; 630 break;
584 631
… …
696} 743}
697 744
698/*****************************************************************************/ 745/*****************************************************************************/
699 746
700#if !_POSIX_MAPPED_FILES 747#if !_POSIX_MAPPED_FILES
701# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 748# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
702# define munmap(addr,length) (errno = ENOSYS, -1) 749# define munmap(addr,length) EIO_ENOSYS ()
703#endif 750#endif
704 751
705#if !_POSIX_MEMORY_PROTECTION 752#if !_POSIX_MEMORY_PROTECTION
706# define mprotect(addr,len,prot) (errno = ENOSYS, -1) 753# define mprotect(addr,len,prot) EIO_ENOSYS ()
707# define PROT_NONE 0 754# define PROT_NONE 0
708# define PROT_WRITE 0 755# define PROT_WRITE 0
709# define MAP_PRIVATE 0 756# define MAP_PRIVATE 0
710# define MAP_SHARED 0 757# define MAP_SHARED 0
711# define MAP_FIXED 0 758# define MAP_FIXED 0
… …
954 const_iv (FIEMAP_EXTENT_DATA_TAIL) 1001 const_iv (FIEMAP_EXTENT_DATA_TAIL)
955 const_iv (FIEMAP_EXTENT_UNWRITTEN) 1002 const_iv (FIEMAP_EXTENT_UNWRITTEN)
956 const_iv (FIEMAP_EXTENT_MERGED) 1003 const_iv (FIEMAP_EXTENT_MERGED)
957 const_iv (FIEMAP_EXTENT_SHARED) 1004 const_iv (FIEMAP_EXTENT_SHARED)
958 1005
1006 const_iv (SPLICE_F_MOVE)
1007 const_iv (SPLICE_F_NONBLOCK)
1008 const_iv (SPLICE_F_MORE)
1009 const_iv (SPLICE_F_GIFT)
1010
1011 const_iv (SEEK_DATA)
1012 const_iv (SEEK_HOLE)
1013
1014 /* libeio constants */
959 const_eio (SEEK_SET) 1015 const_eio (SEEK_SET)
960 const_eio (SEEK_CUR) 1016 const_eio (SEEK_CUR)
961 const_eio (SEEK_END) 1017 const_eio (SEEK_END)
962 1018
963 const_eio (MCL_FUTURE) 1019 const_eio (MCL_FUTURE)
… …
972 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 1028 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
973 const_eio (SYNC_FILE_RANGE_WRITE) 1029 const_eio (SYNC_FILE_RANGE_WRITE)
974 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 1030 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
975 1031
976 const_eio (FALLOC_FL_KEEP_SIZE) 1032 const_eio (FALLOC_FL_KEEP_SIZE)
1033 const_eio (FALLOC_FL_PUNCH_HOLE)
977 1034
978 const_eio (READDIR_DENTS) 1035 const_eio (READDIR_DENTS)
979 const_eio (READDIR_DIRS_FIRST) 1036 const_eio (READDIR_DIRS_FIRST)
980 const_eio (READDIR_STAT_ORDER) 1037 const_eio (READDIR_STAT_ORDER)
981 const_eio (READDIR_FOUND_UNKNOWN) 1038 const_eio (READDIR_FOUND_UNKNOWN)
… …
1082 aio_fsync = EIO_FSYNC 1139 aio_fsync = EIO_FSYNC
1083 aio_fdatasync = EIO_FDATASYNC 1140 aio_fdatasync = EIO_FDATASYNC
1084 aio_syncfs = EIO_SYNCFS 1141 aio_syncfs = EIO_SYNCFS
1085 PPCODE: 1142 PPCODE:
1086{ 1143{
1087 int fd = s_fileno_croak (fh, 0); 1144 int fd = s_fileno_croak (fh, 0);
1088 dREQ; 1145 dREQ;
1089 1146
1090 req->type = ix; 1147 req->type = ix;
1091 req->sv1 = newSVsv (fh); 1148 req->sv1 = newSVsv (fh);
1092 req->int1 = fd; 1149 req->int1 = fd;
… …
1096 1153
1097void 1154void
1098aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1155aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1099 PPCODE: 1156 PPCODE:
1100{ 1157{
1101 int fd = s_fileno_croak (fh, 0); 1158 int fd = s_fileno_croak (fh, 0);
1102 dREQ; 1159 dREQ;
1103 1160
1104 req->type = EIO_SYNC_FILE_RANGE; 1161 req->type = EIO_SYNC_FILE_RANGE;
1105 req->sv1 = newSVsv (fh); 1162 req->sv1 = newSVsv (fh);
1106 req->int1 = fd; 1163 req->int1 = fd;
… …
1110 1167
1111 REQ_SEND; 1168 REQ_SEND;
1112} 1169}
1113 1170
1114void 1171void
1115aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef) 1172aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1116 PPCODE: 1173 PPCODE:
1117{ 1174{
1118 int fd = s_fileno_croak (fh, 0); 1175 int fd = s_fileno_croak (fh, 0);
1119 dREQ; 1176 dREQ;
1120 1177
1121 req->type = EIO_FALLOCATE; 1178 req->type = EIO_FALLOCATE;
1122 req->sv1 = newSVsv (fh); 1179 req->sv1 = newSVsv (fh);
1123 req->int1 = fd; 1180 req->int1 = fd;
… …
1131void 1188void
1132aio_close (SV *fh, SV *callback=&PL_sv_undef) 1189aio_close (SV *fh, SV *callback=&PL_sv_undef)
1133 PPCODE: 1190 PPCODE:
1134{ 1191{
1135 static int close_fd = -1; /* dummy fd to close fds via dup2 */ 1192 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1136 int fd = s_fileno_croak (fh, 0); 1193 int fd = s_fileno_croak (fh, 0);
1137 dREQ; 1194 dREQ;
1138 1195
1139 if (expect_false (close_fd < 0)) 1196 if (expect_false (close_fd < 0))
1140 { 1197 {
1141 int pipefd [2]; 1198 int pipefd [2];
… …
1164 1221
1165void 1222void
1166aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef) 1223aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1167 PPCODE: 1224 PPCODE:
1168{ 1225{
1169 STRLEN svlen;
1170 int fd = s_fileno_croak (fh, 0); 1226 int fd = s_fileno_croak (fh, 0);
1171 dREQ; 1227 dREQ;
1172 1228
1173 req->type = EIO_SEEK; 1229 req->type = EIO_SEEK;
1174 req->sv1 = newSVsv (fh); 1230 req->sv1 = newSVsv (fh);
… …
1205 } 1261 }
1206 else 1262 else
1207 { 1263 {
1208 /* read: check type and grow scalar as necessary */ 1264 /* read: check type and grow scalar as necessary */
1209 SvUPGRADE (data, SVt_PV); 1265 SvUPGRADE (data, SVt_PV);
1266 if (SvLEN (data) >= SvCUR (data))
1210 svptr = SvGROW (data, len + dataoffset + 1); 1267 svptr = SvGROW (data, len + dataoffset + 1);
1268 else if (SvCUR (data) < len + dataoffset)
1269 croak ("length + dataoffset outside of scalar, and cannot grow");
1211 } 1270 }
1212 1271
1213 { 1272 {
1214 dREQ; 1273 dREQ;
1215 1274
… …
1249 1308
1250void 1309void
1251aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1310aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1252 PPCODE: 1311 PPCODE:
1253{ 1312{
1254 int ifd = s_fileno_croak (in_fh , 0); 1313 int ifd = s_fileno_croak (in_fh , 0);
1255 int ofd = s_fileno_croak (out_fh, 1); 1314 int ofd = s_fileno_croak (out_fh, 1);
1256 dREQ; 1315 dREQ;
1257 1316
1258 req->type = EIO_SENDFILE; 1317 req->type = EIO_SENDFILE;
1259 req->sv1 = newSVsv (out_fh); 1318 req->sv1 = newSVsv (out_fh);
1260 req->int1 = ofd; 1319 req->int1 = ofd;
… …
1268 1327
1269void 1328void
1270aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1329aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1271 PPCODE: 1330 PPCODE:
1272{ 1331{
1273 int fd = s_fileno_croak (fh, 0); 1332 int fd = s_fileno_croak (fh, 0);
1274 dREQ; 1333 dREQ;
1275 1334
1276 req->type = EIO_READAHEAD; 1335 req->type = EIO_READAHEAD;
1277 req->sv1 = newSVsv (fh); 1336 req->sv1 = newSVsv (fh);
1278 req->int1 = fd; 1337 req->int1 = fd;
… …
1518 1577
1519void 1578void
1520aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef) 1579aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1521 PPCODE: 1580 PPCODE:
1522{ 1581{
1523 int fd = s_fileno_croak (fh, 0); 1582 int fd = s_fileno_croak (fh, 0);
1524 dREQ; 1583 dREQ;
1525 1584
1526 req->type = EIO_CUSTOM; 1585 req->type = EIO_CUSTOM;
1527 req->sv1 = newSVsv (fh); 1586 req->sv1 = newSVsv (fh);
1528 req->int1 = fd; 1587 req->int1 = fd;
1529 1588
1530 req->feed = fiemap; 1589 req->feed = fiemap;
1590#if HAVE_FIEMAP
1531 /* keep our fingers crossed that the next two types are 64 bit */ 1591 /* keep our fingers crossed that the next two types are 64 bit */
1532 req->offs = start; 1592 req->offs = start;
1533 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL; 1593 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1534 req->int2 = flags; 1594 req->int2 = flags;
1535 req->int3 = SvOK (count) ? SvIV (count) : -1; 1595 req->int3 = SvOK (count) ? SvIV (count) : -1;
1596#endif
1536 1597
1537 REQ_SEND; 1598 REQ_SEND;
1538} 1599}
1539 1600
1540void 1601void
… …
1555{ 1616{
1556 dREQ; 1617 dREQ;
1557 1618
1558 req->type = EIO_GROUP; 1619 req->type = EIO_GROUP;
1559 1620
1621 PUTBACK;
1560 req_submit (req); 1622 req_submit (req);
1623 SPAGAIN;
1624
1561 XPUSHs (req_sv (req, aio_grp_stash)); 1625 XPUSHs (req_sv (req, aio_grp_stash));
1562} 1626}
1563 1627
1564void 1628void
1565aio_nop (SV *callback=&PL_sv_undef) 1629aio_nop (SV *callback=&PL_sv_undef)
… …
1674 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1738 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1675 OUTPUT: 1739 OUTPUT:
1676 RETVAL 1740 RETVAL
1677 1741
1678void 1742void
1679mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1743mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1680 PPCODE: 1744 PPCODE:
1681 sv_unmagic (scalar, MMAP_MAGIC); 1745 sv_unmagic (scalar, MMAP_MAGIC);
1682{ 1746{
1683 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1747 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1684 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1748 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1717 ALIAS: 1781 ALIAS:
1718 mprotect = 1 1782 mprotect = 1
1719 CODE: 1783 CODE:
1720{ 1784{
1721 STRLEN svlen; 1785 STRLEN svlen;
1722 void *addr = SvPVbyte (scalar, svlen); 1786 void *addr = SvPVbyte (scalar, svlen);
1723 size_t len = SvUV (length); 1787 size_t len = SvUV (length);
1724 1788
1725 if (offset < 0) 1789 if (offset < 0)
1726 offset += svlen; 1790 offset += svlen;
1727 1791
… …
1746int 1810int
1747munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef) 1811munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1748 CODE: 1812 CODE:
1749{ 1813{
1750 STRLEN svlen; 1814 STRLEN svlen;
1751 void *addr = SvPVbyte (scalar, svlen); 1815 void *addr = SvPVbyte (scalar, svlen);
1752 size_t len = SvUV (length); 1816 size_t len = SvUV (length);
1753 1817
1754 if (offset < 0) 1818 if (offset < 0)
1755 offset += svlen; 1819 offset += svlen;
1756 1820
… …
1763 addr = (void *)(((intptr_t)addr) + offset); 1827 addr = (void *)(((intptr_t)addr) + offset);
1764 eio_page_align (&addr, &len); 1828 eio_page_align (&addr, &len);
1765#if _POSIX_MEMLOCK_RANGE 1829#if _POSIX_MEMLOCK_RANGE
1766 RETVAL = munlock (addr, len); 1830 RETVAL = munlock (addr, len);
1767#else 1831#else
1768 RETVAL = ((errno = ENOSYS), -1); 1832 RETVAL = EIO_ENOSYS ();
1769#endif 1833#endif
1770} 1834}
1771 OUTPUT: 1835 OUTPUT:
1772 RETVAL 1836 RETVAL
1773 1837
… …
1775munlockall () 1839munlockall ()
1776 CODE: 1840 CODE:
1777#if _POSIX_MEMLOCK 1841#if _POSIX_MEMLOCK
1778 munlockall (); 1842 munlockall ();
1779#else 1843#else
1844 RETVAL = EIO_ENOSYS ();
1845#endif
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1851 CODE:
1852{
1853#if HAVE_LINUX_SPLICE
1854 loff_t off_in_, off_out_;
1855 RETVAL = splice (
1856 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1857 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1858 length, flags
1859 );
1860#else
1861 RETVAL = EIO_ENOSYS ();
1862#endif
1863}
1864 OUTPUT:
1865 RETVAL
1866
1867int
1868tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1869 CODE:
1870#if HAVE_LINUX_SPLICE
1871 RETVAL = tee (rfh, wfh, length, flags);
1872#else
1873 RETVAL = EIO_ENOSYS ();
1874#endif
1875 OUTPUT:
1876 RETVAL
1877
1878int
1879pipesize (aio_rfd rfh, int new_size = -1)
1880 PROTOTYPE: $;$
1881 CODE:
1882#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1883 if (new_size >= 0)
1884 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1885 else
1886 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1887#else
1888 errno = ENOSYS;
1780 RETVAL = -1; 1889 RETVAL = -1;
1781 errno = ENOSYS;
1782#endif 1890#endif
1783 OUTPUT: 1891 OUTPUT:
1784 RETVAL 1892 RETVAL
1785 1893
1786void _on_next_submit (SV *cb) 1894void _on_next_submit (SV *cb)

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