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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 1.219 by root, Fri Jul 27 18:43:25 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 < count)
200 /* either autosizing succeeded,
201 * or the file had no extents
202 * or we luckily had enough space */
203 break;
204
205 /* some kernels overwrite fm_length, so just reset everything */
206 fiemap->fm_start = req->offs;
207 fiemap->fm_length = req->size;
208 fiemap->fm_flags = req->int2;
209 fiemap->fm_extent_count = 0;
210
211 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212 return;
213
214 /* to work around a kernel bug, we allocate one more */
215 count = fiemap->fm_mapped_extents + 1;
216
217 free (fiemap);
218 }
219
220 req->result = 0;
221
222#else
223 errno = ENOSYS;
224#endif
225}
226
227/*****************************************************************************/
331 228
332enum { 229enum {
333 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 230 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334}; 231};
335 232
… …
638 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 535 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
639 536
640 PUSHs (sv_result); 537 PUSHs (sv_result);
641 break; 538 break;
642 539
540 case EIO_SEEK:
541 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
542 break;
543
643 case EIO_READ: 544 case EIO_READ:
644 { 545 {
645 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 546 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
646 *SvEND (req->sv2) = 0; 547 *SvEND (req->sv2) = 0;
647 SvPOK_only (req->sv2); 548 SvPOK_only (req->sv2);
648 SvSETMAGIC (req->sv2); 549 SvSETMAGIC (req->sv2);
649 PUSHs (sv_result); 550 PUSHs (sv_result);
650 } 551 }
651 break; 552 break;
652 553
554 case EIO_CUSTOM:
555 if (req->feed == fiemap)
556 {
557#if HAVE_FIEMAP
558 if (!req->result)
559 {
560 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
561
562 if (fiemap->fm_extent_count)
563 {
564 AV *av = newAV ();
565 int i;
566
567 while (fiemap->fm_mapped_extents)
568 {
569 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
570 AV *ext_av = newAV ();
571
572 av_store (ext_av, 3, newSVuv (extent->fe_flags));
573 av_store (ext_av, 2, newSVval64 (extent->fe_length));
574 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
575 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
576
577 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
578 }
579
580 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
581 }
582 else
583 {
584 SvIV_set (sv_result, fiemap->fm_mapped_extents);
585 PUSHs (sv_result);
586 }
587 }
588#endif
589 }
590 else
591 PUSHs (sv_result);
592 break;
593
653 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 594 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
654 if (req->result > 0) 595 if (req->result > 0)
655 SvIV_set (sv_result, 0); 596 SvIV_set (sv_result, 0);
656 /* FALLTHROUGH */ 597 /* FALLTHROUGH */
657 598
… …
764} 705}
765 706
766/*****************************************************************************/ 707/*****************************************************************************/
767 708
768#if !_POSIX_MAPPED_FILES 709#if !_POSIX_MAPPED_FILES
769# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 710# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
770# define munmap(addr,length) (errno = ENOSYS, -1) 711# define munmap(addr,length) EIO_ENOSYS ()
771#endif 712#endif
772 713
773#if !_POSIX_MEMORY_PROTECTION 714#if !_POSIX_MEMORY_PROTECTION
774# define mprotect(addr,len,prot) (errno = ENOSYS, -1) 715# define mprotect(addr,len,prot) EIO_ENOSYS ()
775# define PROT_NONE 0 716# define PROT_NONE 0
776# define PROT_WRITE 0 717# define PROT_WRITE 0
777# define MAP_PRIVATE 0 718# define MAP_PRIVATE 0
778# define MAP_SHARED 0 719# define MAP_SHARED 0
779# define MAP_FIXED 0 720# define MAP_FIXED 0
… …
923 IV iv; 864 IV iv;
924 } *civ, const_iv[] = { 865 } *civ, const_iv[] = {
925# define const_niv(name, value) { # name, (IV) value }, 866# define const_niv(name, value) { # name, (IV) value },
926# define const_iv(name) { # name, (IV) name }, 867# define const_iv(name) { # name, (IV) name },
927# define const_eio(name) { # name, (IV) EIO_ ## name }, 868# define const_eio(name) { # name, (IV) EIO_ ## name },
869
870 /* you have to re-run ./gendef0 after adding/Removing any constants here */
871
872 const_iv (ENOSYS)
928 const_iv (EXDEV) 873 const_iv (EXDEV)
929 const_iv (ENOSYS) 874 const_iv (EBADR)
875
930 const_iv (O_RDONLY) 876 const_iv (O_RDONLY)
931 const_iv (O_WRONLY) 877 const_iv (O_WRONLY)
932 const_iv (O_RDWR) 878 const_iv (O_RDWR)
933 const_iv (O_CREAT) 879 const_iv (O_CREAT)
934 const_iv (O_TRUNC) 880 const_iv (O_TRUNC)
… …
1002 const_iv (MAP_LOCKED) 948 const_iv (MAP_LOCKED)
1003 const_iv (MAP_NORESERVE) 949 const_iv (MAP_NORESERVE)
1004 const_iv (MAP_POPULATE) 950 const_iv (MAP_POPULATE)
1005 const_iv (MAP_NONBLOCK) 951 const_iv (MAP_NONBLOCK)
1006 952
953 const_iv (FIEMAP_FLAG_SYNC)
954 const_iv (FIEMAP_FLAG_XATTR)
955 const_iv (FIEMAP_FLAGS_COMPAT)
956 const_iv (FIEMAP_EXTENT_LAST)
957 const_iv (FIEMAP_EXTENT_UNKNOWN)
958 const_iv (FIEMAP_EXTENT_DELALLOC)
959 const_iv (FIEMAP_EXTENT_ENCODED)
960 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
961 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
962 const_iv (FIEMAP_EXTENT_DATA_INLINE)
963 const_iv (FIEMAP_EXTENT_DATA_TAIL)
964 const_iv (FIEMAP_EXTENT_UNWRITTEN)
965 const_iv (FIEMAP_EXTENT_MERGED)
966 const_iv (FIEMAP_EXTENT_SHARED)
967
968 const_iv (SPLICE_F_MOVE)
969 const_iv (SPLICE_F_NONBLOCK)
970 const_iv (SPLICE_F_MORE)
971 const_iv (SPLICE_F_GIFT)
972
973 const_iv (SEEK_DATA)
974 const_iv (SEEK_HOLE)
975
976 /* libeio constants */
977 const_eio (SEEK_SET)
978 const_eio (SEEK_CUR)
979 const_eio (SEEK_END)
980
1007 const_eio (MCL_FUTURE) 981 const_eio (MCL_FUTURE)
1008 const_eio (MCL_CURRENT) 982 const_eio (MCL_CURRENT)
1009 983
1010 const_eio (MS_ASYNC) 984 const_eio (MS_ASYNC)
1011 const_eio (MS_INVALIDATE) 985 const_eio (MS_INVALIDATE)
… …
1016 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 990 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1017 const_eio (SYNC_FILE_RANGE_WRITE) 991 const_eio (SYNC_FILE_RANGE_WRITE)
1018 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 992 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1019 993
1020 const_eio (FALLOC_FL_KEEP_SIZE) 994 const_eio (FALLOC_FL_KEEP_SIZE)
995 const_eio (FALLOC_FL_PUNCH_HOLE)
1021 996
1022 const_eio (READDIR_DENTS) 997 const_eio (READDIR_DENTS)
1023 const_eio (READDIR_DIRS_FIRST) 998 const_eio (READDIR_DIRS_FIRST)
1024 const_eio (READDIR_STAT_ORDER) 999 const_eio (READDIR_STAT_ORDER)
1025 const_eio (READDIR_FOUND_UNKNOWN) 1000 const_eio (READDIR_FOUND_UNKNOWN)
… …
1133 1108
1134 req->type = ix; 1109 req->type = ix;
1135 req->sv1 = newSVsv (fh); 1110 req->sv1 = newSVsv (fh);
1136 req->int1 = fd; 1111 req->int1 = fd;
1137 1112
1138 REQ_SEND (req); 1113 REQ_SEND;
1139} 1114}
1140 1115
1141void 1116void
1142aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1117aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1143 PPCODE: 1118 PPCODE:
… …
1150 req->int1 = fd; 1125 req->int1 = fd;
1151 req->offs = offset; 1126 req->offs = offset;
1152 req->size = nbytes; 1127 req->size = nbytes;
1153 req->int2 = flags; 1128 req->int2 = flags;
1154 1129
1155 REQ_SEND (req); 1130 REQ_SEND;
1156} 1131}
1157 1132
1158void 1133void
1159aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef) 1134aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1160 PPCODE: 1135 PPCODE:
… …
1167 req->int1 = fd; 1142 req->int1 = fd;
1168 req->int2 = mode; 1143 req->int2 = mode;
1169 req->offs = offset; 1144 req->offs = offset;
1170 req->size = len; 1145 req->size = len;
1171 1146
1172 REQ_SEND (req); 1147 REQ_SEND;
1173} 1148}
1174 1149
1175void 1150void
1176aio_close (SV *fh, SV *callback=&PL_sv_undef) 1151aio_close (SV *fh, SV *callback=&PL_sv_undef)
1177 PPCODE: 1152 PPCODE:
… …
1201 req->type = EIO_DUP2; 1176 req->type = EIO_DUP2;
1202 req->int1 = close_fd; 1177 req->int1 = close_fd;
1203 req->sv2 = newSVsv (fh); 1178 req->sv2 = newSVsv (fh);
1204 req->int2 = fd; 1179 req->int2 = fd;
1205 1180
1206 REQ_SEND (req); 1181 REQ_SEND;
1182}
1183
1184void
1185aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1186 PPCODE:
1187{
1188 int fd = s_fileno_croak (fh, 0);
1189 dREQ;
1190
1191 req->type = EIO_SEEK;
1192 req->sv1 = newSVsv (fh);
1193 req->int1 = fd;
1194 req->offs = SvVAL64 (offset);
1195 req->int2 = whence;
1196
1197 REQ_SEND;
1207} 1198}
1208 1199
1209void 1200void
1210aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1201aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1211 ALIAS: 1202 ALIAS:
… …
1232 } 1223 }
1233 else 1224 else
1234 { 1225 {
1235 /* read: check type and grow scalar as necessary */ 1226 /* read: check type and grow scalar as necessary */
1236 SvUPGRADE (data, SVt_PV); 1227 SvUPGRADE (data, SVt_PV);
1228 if (SvLEN (data) >= SvCUR (data))
1237 svptr = SvGROW (data, len + dataoffset + 1); 1229 svptr = SvGROW (data, len + dataoffset + 1);
1230 else if (SvCUR (data) < len + dataoffset)
1231 croak ("length + dataoffset outside of scalar, and cannot grow");
1238 } 1232 }
1239 1233
1240 { 1234 {
1241 dREQ; 1235 dREQ;
1242 1236
… …
1539 1533
1540 req->type = EIO_MLOCKALL; 1534 req->type = EIO_MLOCKALL;
1541 req->int1 = flags; 1535 req->int1 = flags;
1542 1536
1543 REQ_SEND; 1537 REQ_SEND;
1538}
1539
1540void
1541aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 int fd = s_fileno_croak (fh, 0);
1545 dREQ;
1546
1547 req->type = EIO_CUSTOM;
1548 req->sv1 = newSVsv (fh);
1549 req->int1 = fd;
1550
1551 req->feed = fiemap;
1552#if HAVE_FIEMAP
1553 /* keep our fingers crossed that the next two types are 64 bit */
1554 req->offs = start;
1555 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1556 req->int2 = flags;
1557 req->int3 = SvOK (count) ? SvIV (count) : -1;
1558#endif
1559
1560 REQ_SEND;
1544} 1561}
1545 1562
1546void 1563void
1547aio_busy (double delay, SV *callback=&PL_sv_undef) 1564aio_busy (double delay, SV *callback=&PL_sv_undef)
1548 PPCODE: 1565 PPCODE:
… …
1680 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1697 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1681 OUTPUT: 1698 OUTPUT:
1682 RETVAL 1699 RETVAL
1683 1700
1684void 1701void
1685mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1702mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1686 PPCODE: 1703 PPCODE:
1687 sv_unmagic (scalar, MMAP_MAGIC); 1704 sv_unmagic (scalar, MMAP_MAGIC);
1688{ 1705{
1689 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1706 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1690 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1707 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1723 ALIAS: 1740 ALIAS:
1724 mprotect = 1 1741 mprotect = 1
1725 CODE: 1742 CODE:
1726{ 1743{
1727 STRLEN svlen; 1744 STRLEN svlen;
1728 void *addr = SvPVbyte (scalar, svlen); 1745 void *addr = SvPVbyte (scalar, svlen);
1729 size_t len = SvUV (length); 1746 size_t len = SvUV (length);
1730 1747
1731 if (offset < 0) 1748 if (offset < 0)
1732 offset += svlen; 1749 offset += svlen;
1733 1750
… …
1769 addr = (void *)(((intptr_t)addr) + offset); 1786 addr = (void *)(((intptr_t)addr) + offset);
1770 eio_page_align (&addr, &len); 1787 eio_page_align (&addr, &len);
1771#if _POSIX_MEMLOCK_RANGE 1788#if _POSIX_MEMLOCK_RANGE
1772 RETVAL = munlock (addr, len); 1789 RETVAL = munlock (addr, len);
1773#else 1790#else
1774 RETVAL = ((errno = ENOSYS), -1); 1791 RETVAL = EIO_ENOSYS ();
1775#endif 1792#endif
1776} 1793}
1777 OUTPUT: 1794 OUTPUT:
1778 RETVAL 1795 RETVAL
1779 1796
… …
1781munlockall () 1798munlockall ()
1782 CODE: 1799 CODE:
1783#if _POSIX_MEMLOCK 1800#if _POSIX_MEMLOCK
1784 munlockall (); 1801 munlockall ();
1785#else 1802#else
1786 RETVAL = -1; 1803 RETVAL = EIO_ENOSYS ();
1787 errno = ENOSYS;
1788#endif 1804#endif
1789 OUTPUT: 1805 OUTPUT:
1806 RETVAL
1807
1808int
1809splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1810 CODE:
1811{
1812#if HAVE_LINUX_SPLICE
1813 loff_t off_in_, off_out_;
1814 RETVAL = splice (
1815 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1816 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1817 length, flags
1818 );
1819#else
1820 RETVAL = EIO_ENOSYS ();
1821#endif
1822}
1823 OUTPUT:
1824 RETVAL
1825
1826int
1827tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1828 CODE:
1829#if HAVE_LINUX_SPLICE
1830 RETVAL = tee (rfh, wfh, length, flags);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834 OUTPUT:
1790 RETVAL 1835 RETVAL
1791 1836
1792void _on_next_submit (SV *cb) 1837void _on_next_submit (SV *cb)
1793 CODE: 1838 CODE:
1794 SvREFCNT_dec (on_next_submit); 1839 SvREFCNT_dec (on_next_submit);

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