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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.208 by root, Sat Jan 7 18:42:43 2012 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

… …
17#include <fcntl.h> 17#include <fcntl.h>
18#include <sched.h> 18#include <sched.h>
19 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h> 21# include <sys/mman.h>
22#endif
23
24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
22#endif 31#endif
23 32
24/* perl namespace pollution */ 33/* perl namespace pollution */
25#undef VERSION 34#undef VERSION
26 35
… …
77 86
78 #define EIO_STRUCT_STAT Stat_t 87 #define EIO_STRUCT_STAT Stat_t
79 88
80#endif 89#endif
81 90
82/* use NV for 32 bit perls as it allows larger offsets */
83#if IVSIZE >= 8
84# define VAL64 IV
85# define SvVAL64 SvIV
86# define newSVval64 newSViv
87#else
88# define VAL64 NV
89# define SvVAL64 SvNV
90# define newSVval64 newSVnv
91#endif
92
93/*****************************************************************************/ 91/*****************************************************************************/
94 92
95#if __GNUC__ >= 3 93#if __GNUC__ >= 3
96# define expect(expr,value) __builtin_expect ((expr),(value)) 94# define expect(expr,value) __builtin_expect ((expr),(value))
97#else 95#else
… …
126static void req_destroy (eio_req *grp); 124static void req_destroy (eio_req *grp);
127#define EIO_DESTROY(req) req_destroy (req) 125#define EIO_DESTROY(req) req_destroy (req)
128 126
129#include "libeio/eio.c" 127#include "libeio/eio.c"
130 128
131/* Linux/others */
132#ifndef O_ASYNC
133# define O_ASYNC 0
134#endif
135#ifndef O_DIRECT
136# define O_DIRECT 0
137#endif
138#ifndef O_NOATIME
139# define O_NOATIME 0
140#endif
141
142/* POSIX */
143#ifndef O_CLOEXEC
144# define O_CLOEXEC 0
145#endif
146#ifndef O_NOFOLLOW
147# define O_NOFOLLOW 0
148#endif
149#ifndef O_NOCTTY
150# define O_NOCTTY 0
151#endif
152#ifndef O_NONBLOCK
153# define O_NONBLOCK 0
154#endif
155#ifndef O_EXEC
156# define O_EXEC 0
157#endif
158#ifndef O_SEARCH
159# define O_SEARCH 0
160#endif
161#ifndef O_DIRECTORY
162# define O_DIRECTORY 0
163#endif
164#ifndef O_DSYNC
165# define O_DSYNC 0
166#endif
167#ifndef O_RSYNC
168# define O_RSYNC 0
169#endif
170#ifndef O_SYNC
171# define O_SYNC 0
172#endif
173#ifndef O_TTY_INIT
174# define O_TTY_INIT 0
175#endif
176
177#ifndef POSIX_FADV_NORMAL
178# define POSIX_FADV_NORMAL 0
179#endif
180#ifndef POSIX_FADV_SEQUENTIAL
181# define POSIX_FADV_SEQUENTIAL 0
182#endif
183#ifndef POSIX_FADV_RANDOM
184# define POSIX_FADV_RANDOM 0
185#endif
186#ifndef POSIX_FADV_NOREUSE
187# define POSIX_FADV_NOREUSE 0
188#endif
189#ifndef POSIX_FADV_WILLNEED
190# define POSIX_FADV_WILLNEED 0
191#endif
192#ifndef POSIX_FADV_DONTNEED
193# define POSIX_FADV_DONTNEED 0
194#endif
195
196#if !HAVE_POSIX_FADVISE 129#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ 130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif 131#endif
199 132
200#ifndef POSIX_MADV_NORMAL
201# define POSIX_MADV_NORMAL 0
202#endif
203#ifndef POSIX_MADV_SEQUENTIAL
204# define POSIX_MADV_SEQUENTIAL 0
205#endif
206#ifndef POSIX_MADV_RANDOM
207# define POSIX_MADV_RANDOM 0
208#endif
209#ifndef POSIX_MADV_WILLNEED
210# define POSIX_MADV_WILLNEED 0
211#endif
212#ifndef POSIX_MADV_DONTNEED
213# define POSIX_MADV_DONTNEED 0
214#endif
215
216#if !HAVE_POSIX_MADVISE 133#if !HAVE_POSIX_MADVISE
217# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ 134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218#endif
219
220#ifndef PROT_NONE
221# define PROT_NONE 0
222#endif
223#ifndef PROT_READ
224# define PROT_READ 0
225#endif
226#ifndef PROT_WRITE
227# define PROT_READ 0
228#endif
229#ifndef PROT_EXEC
230# define PROT_EXEC 0
231#endif
232
233#ifndef ST_RDONLY
234# define ST_RDONLY 0
235#endif
236#ifndef ST_NOSUID
237# define ST_NOSUID 0
238#endif
239#ifndef ST_NODEV
240# define ST_NODEV 0
241#endif
242#ifndef ST_NOEXEC
243# define ST_NOEXEC 0
244#endif
245#ifndef ST_SYNCHRONOUS
246# define ST_SYNCHRONOUS 0
247#endif
248#ifndef ST_MANDLOCK
249# define ST_MANDLOCK 0
250#endif
251#ifndef ST_WRITE
252# define ST_WRITE 0
253#endif
254#ifndef ST_APPEND
255# define ST_APPEND 0
256#endif
257#ifndef ST_IMMUTABLE
258# define ST_IMMUTABLE 0
259#endif
260#ifndef ST_NOATIME
261# define ST_NOATIME 0
262#endif
263#ifndef ST_NODIRATIME
264# define ST_NODIRATIME 0
265#endif
266#ifndef ST_RELATIME
267# define ST_RELATIME 0
268#endif
269
270#ifndef S_IFIFO
271# define S_IFIFO 0
272#endif
273#ifndef S_IFCHR
274# define S_IFCHR 0
275#endif
276#ifndef S_IFBLK
277# define S_IFBLK 0
278#endif
279#ifndef S_IFLNK
280# define S_IFLNK 0
281#endif
282#ifndef S_IFREG
283# define S_IFREG 0
284#endif
285#ifndef S_IFDIR
286# define S_IFDIR 0
287#endif
288#ifndef S_IFWHT
289# define S_IFWHT 0
290#endif
291#ifndef S_IFSOCK
292# define S_IFSOCK 0
293#endif 135#endif
294 136
295#ifndef MAP_ANONYMOUS 137#ifndef MAP_ANONYMOUS
296# ifdef MAP_ANON 138# ifdef MAP_ANON
297# define MAP_ANONYMOUS MAP_ANON 139# define MAP_ANONYMOUS MAP_ANON
298# else 140# else
299# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300# endif 142# endif
301#endif 143#endif
302#ifndef MAP_HUGETLB 144
303# define MAP_HUGETLB 0 145/* defines all sorts of constants to 0 unless they are already defined */
304#endif 146#include "def0.h"
305#ifndef MAP_LOCKED
306# define MAP_LOCKED 0
307#endif
308#ifndef MAP_NORESERVE
309# define MAP_NORESERVE 0
310#endif
311#ifndef MAP_POPULATE
312# define MAP_POPULATE 0
313#endif
314#ifndef MAP_NONBLOCK
315# define MAP_NONBLOCK 0
316#endif
317 147
318#ifndef makedev 148#ifndef makedev
319# define makedev(maj,min) (((maj) << 8) | (min)) 149# define makedev(maj,min) (((maj) << 8) | (min))
320#endif 150#endif
321#ifndef major 151#ifndef major
… …
326#endif 156#endif
327 157
328#ifndef PAGESIZE 158#ifndef PAGESIZE
329# define PAGESIZE sysconf (_SC_PAGESIZE) 159# define PAGESIZE sysconf (_SC_PAGESIZE)
330#endif 160#endif
161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (!fiemap->fm_mapped_extents)
200 break; /* if file has no segments, we are done */
201
202 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
203 break; /* autosizing successful, we are done */
204
205 fiemap->fm_flags = req->int2;
206 fiemap->fm_extent_count = 0;
207
208 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
209 return;
210
211 count = fiemap->fm_mapped_extents;
212
213 free (fiemap);
214 }
215
216 req->result = 0;
217
218#else
219 errno = ENOSYS;
220#endif
221}
222
223/*****************************************************************************/
331 224
332enum { 225enum {
333 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 226 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334}; 227};
335 228
… …
638 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 531 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
639 532
640 PUSHs (sv_result); 533 PUSHs (sv_result);
641 break; 534 break;
642 535
536 case EIO_SEEK:
537 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
538 break;
539
643 case EIO_READ: 540 case EIO_READ:
644 { 541 {
645 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 542 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
646 *SvEND (req->sv2) = 0; 543 *SvEND (req->sv2) = 0;
647 SvPOK_only (req->sv2); 544 SvPOK_only (req->sv2);
648 SvSETMAGIC (req->sv2); 545 SvSETMAGIC (req->sv2);
649 PUSHs (sv_result); 546 PUSHs (sv_result);
650 } 547 }
651 break; 548 break;
652 549
550 case EIO_CUSTOM:
551 if (req->feed == fiemap)
552 {
553#if HAVE_FIEMAP
554 if (!req->result)
555 {
556 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
557
558 if (fiemap->fm_extent_count)
559 {
560 AV *av = newAV ();
561 int i;
562
563 while (fiemap->fm_mapped_extents)
564 {
565 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
566 AV *ext_av = newAV ();
567
568 av_store (ext_av, 3, newSVuv (extent->fe_flags));
569 av_store (ext_av, 2, newSVval64 (extent->fe_length));
570 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
571 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
572
573 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
574 }
575
576 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
577 }
578 else
579 {
580 SvIV_set (sv_result, fiemap->fm_mapped_extents);
581 PUSHs (sv_result);
582 }
583 }
584#endif
585 }
586 else
587 PUSHs (sv_result);
588 break;
589
653 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 590 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
654 if (req->result > 0) 591 if (req->result > 0)
655 SvIV_set (sv_result, 0); 592 SvIV_set (sv_result, 0);
656 /* FALLTHROUGH */ 593 /* FALLTHROUGH */
657 594
… …
764} 701}
765 702
766/*****************************************************************************/ 703/*****************************************************************************/
767 704
768#if !_POSIX_MAPPED_FILES 705#if !_POSIX_MAPPED_FILES
769# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 706# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
770# define munmap(addr,length) (errno = ENOSYS, -1) 707# define munmap(addr,length) EIO_ENOSYS ()
771#endif 708#endif
772 709
773#if !_POSIX_MEMORY_PROTECTION 710#if !_POSIX_MEMORY_PROTECTION
774# define mprotect(addr,len,prot) (errno = ENOSYS, -1) 711# define mprotect(addr,len,prot) EIO_ENOSYS ()
775# define PROT_NONE 0 712# define PROT_NONE 0
776# define PROT_WRITE 0 713# define PROT_WRITE 0
777# define MAP_PRIVATE 0 714# define MAP_PRIVATE 0
778# define MAP_SHARED 0 715# define MAP_SHARED 0
779# define MAP_FIXED 0 716# define MAP_FIXED 0
… …
923 IV iv; 860 IV iv;
924 } *civ, const_iv[] = { 861 } *civ, const_iv[] = {
925# define const_niv(name, value) { # name, (IV) value }, 862# define const_niv(name, value) { # name, (IV) value },
926# define const_iv(name) { # name, (IV) name }, 863# define const_iv(name) { # name, (IV) name },
927# define const_eio(name) { # name, (IV) EIO_ ## name }, 864# define const_eio(name) { # name, (IV) EIO_ ## name },
865
866 /* you have to re-run ./gendef0 after adding/Removing any constants here */
867
868 const_iv (ENOSYS)
928 const_iv (EXDEV) 869 const_iv (EXDEV)
929 const_iv (ENOSYS) 870 const_iv (EBADR)
871
930 const_iv (O_RDONLY) 872 const_iv (O_RDONLY)
931 const_iv (O_WRONLY) 873 const_iv (O_WRONLY)
932 const_iv (O_RDWR) 874 const_iv (O_RDWR)
933 const_iv (O_CREAT) 875 const_iv (O_CREAT)
934 const_iv (O_TRUNC) 876 const_iv (O_TRUNC)
… …
1002 const_iv (MAP_LOCKED) 944 const_iv (MAP_LOCKED)
1003 const_iv (MAP_NORESERVE) 945 const_iv (MAP_NORESERVE)
1004 const_iv (MAP_POPULATE) 946 const_iv (MAP_POPULATE)
1005 const_iv (MAP_NONBLOCK) 947 const_iv (MAP_NONBLOCK)
1006 948
949 const_iv (FIEMAP_FLAG_SYNC)
950 const_iv (FIEMAP_FLAG_XATTR)
951 const_iv (FIEMAP_FLAGS_COMPAT)
952 const_iv (FIEMAP_EXTENT_LAST)
953 const_iv (FIEMAP_EXTENT_UNKNOWN)
954 const_iv (FIEMAP_EXTENT_DELALLOC)
955 const_iv (FIEMAP_EXTENT_ENCODED)
956 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
957 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
958 const_iv (FIEMAP_EXTENT_DATA_INLINE)
959 const_iv (FIEMAP_EXTENT_DATA_TAIL)
960 const_iv (FIEMAP_EXTENT_UNWRITTEN)
961 const_iv (FIEMAP_EXTENT_MERGED)
962 const_iv (FIEMAP_EXTENT_SHARED)
963
964 const_iv (SPLICE_F_MOVE)
965 const_iv (SPLICE_F_NONBLOCK)
966 const_iv (SPLICE_F_MORE)
967 const_iv (SPLICE_F_GIFT)
968
969 const_iv (SEEK_DATA)
970 const_iv (SEEK_HOLE)
971
972 /* libeio constants */
973 const_eio (SEEK_SET)
974 const_eio (SEEK_CUR)
975 const_eio (SEEK_END)
976
1007 const_eio (MCL_FUTURE) 977 const_eio (MCL_FUTURE)
1008 const_eio (MCL_CURRENT) 978 const_eio (MCL_CURRENT)
1009 979
1010 const_eio (MS_ASYNC) 980 const_eio (MS_ASYNC)
1011 const_eio (MS_INVALIDATE) 981 const_eio (MS_INVALIDATE)
… …
1016 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 986 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1017 const_eio (SYNC_FILE_RANGE_WRITE) 987 const_eio (SYNC_FILE_RANGE_WRITE)
1018 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 988 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1019 989
1020 const_eio (FALLOC_FL_KEEP_SIZE) 990 const_eio (FALLOC_FL_KEEP_SIZE)
991 const_eio (FALLOC_FL_PUNCH_HOLE)
1021 992
1022 const_eio (READDIR_DENTS) 993 const_eio (READDIR_DENTS)
1023 const_eio (READDIR_DIRS_FIRST) 994 const_eio (READDIR_DIRS_FIRST)
1024 const_eio (READDIR_STAT_ORDER) 995 const_eio (READDIR_STAT_ORDER)
1025 const_eio (READDIR_FOUND_UNKNOWN) 996 const_eio (READDIR_FOUND_UNKNOWN)
… …
1133 1104
1134 req->type = ix; 1105 req->type = ix;
1135 req->sv1 = newSVsv (fh); 1106 req->sv1 = newSVsv (fh);
1136 req->int1 = fd; 1107 req->int1 = fd;
1137 1108
1138 REQ_SEND (req); 1109 REQ_SEND;
1139} 1110}
1140 1111
1141void 1112void
1142aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1113aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1143 PPCODE: 1114 PPCODE:
… …
1150 req->int1 = fd; 1121 req->int1 = fd;
1151 req->offs = offset; 1122 req->offs = offset;
1152 req->size = nbytes; 1123 req->size = nbytes;
1153 req->int2 = flags; 1124 req->int2 = flags;
1154 1125
1155 REQ_SEND (req); 1126 REQ_SEND;
1156} 1127}
1157 1128
1158void 1129void
1159aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef) 1130aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1160 PPCODE: 1131 PPCODE:
… …
1167 req->int1 = fd; 1138 req->int1 = fd;
1168 req->int2 = mode; 1139 req->int2 = mode;
1169 req->offs = offset; 1140 req->offs = offset;
1170 req->size = len; 1141 req->size = len;
1171 1142
1172 REQ_SEND (req); 1143 REQ_SEND;
1173} 1144}
1174 1145
1175void 1146void
1176aio_close (SV *fh, SV *callback=&PL_sv_undef) 1147aio_close (SV *fh, SV *callback=&PL_sv_undef)
1177 PPCODE: 1148 PPCODE:
… …
1201 req->type = EIO_DUP2; 1172 req->type = EIO_DUP2;
1202 req->int1 = close_fd; 1173 req->int1 = close_fd;
1203 req->sv2 = newSVsv (fh); 1174 req->sv2 = newSVsv (fh);
1204 req->int2 = fd; 1175 req->int2 = fd;
1205 1176
1206 REQ_SEND (req); 1177 REQ_SEND;
1178}
1179
1180void
1181aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1182 PPCODE:
1183{
1184 int fd = s_fileno_croak (fh, 0);
1185 dREQ;
1186
1187 req->type = EIO_SEEK;
1188 req->sv1 = newSVsv (fh);
1189 req->int1 = fd;
1190 req->offs = SvVAL64 (offset);
1191 req->int2 = whence;
1192
1193 REQ_SEND;
1207} 1194}
1208 1195
1209void 1196void
1210aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1211 ALIAS: 1198 ALIAS:
… …
1232 } 1219 }
1233 else 1220 else
1234 { 1221 {
1235 /* read: check type and grow scalar as necessary */ 1222 /* read: check type and grow scalar as necessary */
1236 SvUPGRADE (data, SVt_PV); 1223 SvUPGRADE (data, SVt_PV);
1224 if (SvLEN (data) >= SvCUR (data))
1237 svptr = SvGROW (data, len + dataoffset + 1); 1225 svptr = SvGROW (data, len + dataoffset + 1);
1226 else if (SvCUR (data) < len + dataoffset)
1227 croak ("length + dataoffset outside of scalar, and cannot grow");
1238 } 1228 }
1239 1229
1240 { 1230 {
1241 dREQ; 1231 dREQ;
1242 1232
… …
1539 1529
1540 req->type = EIO_MLOCKALL; 1530 req->type = EIO_MLOCKALL;
1541 req->int1 = flags; 1531 req->int1 = flags;
1542 1532
1543 REQ_SEND; 1533 REQ_SEND;
1534}
1535
1536void
1537aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_CUSTOM;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546
1547 req->feed = fiemap;
1548#if HAVE_FIEMAP
1549 /* keep our fingers crossed that the next two types are 64 bit */
1550 req->offs = start;
1551 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1552 req->int2 = flags;
1553 req->int3 = SvOK (count) ? SvIV (count) : -1;
1554#endif
1555
1556 REQ_SEND;
1544} 1557}
1545 1558
1546void 1559void
1547aio_busy (double delay, SV *callback=&PL_sv_undef) 1560aio_busy (double delay, SV *callback=&PL_sv_undef)
1548 PPCODE: 1561 PPCODE:
… …
1680 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1693 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1681 OUTPUT: 1694 OUTPUT:
1682 RETVAL 1695 RETVAL
1683 1696
1684void 1697void
1685mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1698mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1686 PPCODE: 1699 PPCODE:
1687 sv_unmagic (scalar, MMAP_MAGIC); 1700 sv_unmagic (scalar, MMAP_MAGIC);
1688{ 1701{
1689 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1702 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1690 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1703 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1723 ALIAS: 1736 ALIAS:
1724 mprotect = 1 1737 mprotect = 1
1725 CODE: 1738 CODE:
1726{ 1739{
1727 STRLEN svlen; 1740 STRLEN svlen;
1728 void *addr = SvPVbyte (scalar, svlen); 1741 void *addr = SvPVbyte (scalar, svlen);
1729 size_t len = SvUV (length); 1742 size_t len = SvUV (length);
1730 1743
1731 if (offset < 0) 1744 if (offset < 0)
1732 offset += svlen; 1745 offset += svlen;
1733 1746
… …
1769 addr = (void *)(((intptr_t)addr) + offset); 1782 addr = (void *)(((intptr_t)addr) + offset);
1770 eio_page_align (&addr, &len); 1783 eio_page_align (&addr, &len);
1771#if _POSIX_MEMLOCK_RANGE 1784#if _POSIX_MEMLOCK_RANGE
1772 RETVAL = munlock (addr, len); 1785 RETVAL = munlock (addr, len);
1773#else 1786#else
1774 RETVAL = ((errno = ENOSYS), -1); 1787 RETVAL = EIO_ENOSYS ();
1775#endif 1788#endif
1776} 1789}
1777 OUTPUT: 1790 OUTPUT:
1778 RETVAL 1791 RETVAL
1779 1792
… …
1781munlockall () 1794munlockall ()
1782 CODE: 1795 CODE:
1783#if _POSIX_MEMLOCK 1796#if _POSIX_MEMLOCK
1784 munlockall (); 1797 munlockall ();
1785#else 1798#else
1786 RETVAL = -1; 1799 RETVAL = EIO_ENOSYS ();
1787 errno = ENOSYS;
1788#endif 1800#endif
1789 OUTPUT: 1801 OUTPUT:
1802 RETVAL
1803
1804int
1805splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1806 CODE:
1807{
1808#if HAVE_LINUX_SPLICE
1809 loff_t off_in_, off_out_;
1810 RETVAL = splice (
1811 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1812 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1813 length, flags
1814 );
1815#else
1816 RETVAL = EIO_ENOSYS ();
1817#endif
1818}
1819 OUTPUT:
1820 RETVAL
1821
1822int
1823tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1824 CODE:
1825#if HAVE_LINUX_SPLICE
1826 RETVAL = tee (rfh, wfh, length, flags);
1827#else
1828 RETVAL = EIO_ENOSYS ();
1829#endif
1830 OUTPUT:
1790 RETVAL 1831 RETVAL
1791 1832
1792void _on_next_submit (SV *cb) 1833void _on_next_submit (SV *cb)
1793 CODE: 1834 CODE:
1794 SvREFCNT_dec (on_next_submit); 1835 SvREFCNT_dec (on_next_submit);

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