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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.206 by root, Tue Oct 4 18:22:37 2011 UTC vs.
Revision 1.220 by root, Mon Jul 30 16:44:12 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
… …
62 #undef dup 71 #undef dup
63 #undef dup2 72 #undef dup2
64 #undef abort 73 #undef abort
65 #undef pipe 74 #undef pipe
66 75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
67#else 79#else
68 80
69 #include <sys/time.h> 81 #include <sys/time.h>
70 #include <sys/select.h> 82 #include <sys/select.h>
71 #include <unistd.h> 83 #include <unistd.h>
72 #include <utime.h> 84 #include <utime.h>
73 #include <signal.h> 85 #include <signal.h>
74 86
75#endif
76
77#define EIO_STRUCT_STAT Stat_t 87 #define EIO_STRUCT_STAT Stat_t
78 88
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif 89#endif
89 90
90/*****************************************************************************/ 91/*****************************************************************************/
91 92
92#if __GNUC__ >= 3 93#if __GNUC__ >= 3
… …
123static void req_destroy (eio_req *grp); 124static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req) 125#define EIO_DESTROY(req) req_destroy (req)
125 126
126#include "libeio/eio.c" 127#include "libeio/eio.c"
127 128
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE 129#if !HAVE_POSIX_FADVISE
194# 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 */
195#endif 131#endif
196 132
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE 133#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ 134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif 135#endif
291 136
292#ifndef MAP_ANONYMOUS 137#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON 138# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON 139# define MAP_ANONYMOUS MAP_ANON
295# else 140# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif 142# endif
298#endif 143#endif
299#ifndef MAP_HUGETLB 144
300# define MAP_HUGETLB 0 145/* defines all sorts of constants to 0 unless they are already defined */
301#endif 146#include "def0.h"
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314 147
315#ifndef makedev 148#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min)) 149# define makedev(maj,min) (((maj) << 8) | (min))
317#endif 150#endif
318#ifndef major 151#ifndef major
… …
323#endif 156#endif
324 157
325#ifndef PAGESIZE 158#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE) 159# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif 160#endif
161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
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))
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 (atcually 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
211 for (;;)
212 {
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;
216
217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
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);
222
223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
224 return;
225
226 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228 errno = ENOMEM;
229 if (!fiemap)
230 return;
231
232 req->ptr1 = fiemap;
233
234 for (count = 0; count < incmap->fm_mapped_extents; ++count)
235 {
236 struct fiemap_extent *e = incmap->fm_extents + count;
237
238 if (e->fe_logical + e->fe_length >= end_offset)
239 goto done;
240
241 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
242
243 if (e->fe_flags & FIEMAP_EXTENT_LAST)
244 goto done;
245
246 }
247 }
248
249done:
250 req->result = 0;
251
252#else
253 errno = ENOSYS;
254#endif
255}
256
257/*****************************************************************************/
328 258
329enum { 259enum {
330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 260 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331}; 261};
332 262
… …
635 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 565 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
636 566
637 PUSHs (sv_result); 567 PUSHs (sv_result);
638 break; 568 break;
639 569
570 case EIO_SEEK:
571 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
572 break;
573
640 case EIO_READ: 574 case EIO_READ:
641 { 575 {
642 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 576 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
643 *SvEND (req->sv2) = 0; 577 *SvEND (req->sv2) = 0;
644 SvPOK_only (req->sv2); 578 SvPOK_only (req->sv2);
645 SvSETMAGIC (req->sv2); 579 SvSETMAGIC (req->sv2);
646 PUSHs (sv_result); 580 PUSHs (sv_result);
647 } 581 }
648 break; 582 break;
649 583
584 case EIO_CUSTOM:
585 if (req->feed == fiemap)
586 {
587#if HAVE_FIEMAP
588 if (!req->result)
589 {
590 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
591
592 if (fiemap->fm_extent_count)
593 {
594 AV *av = newAV ();
595 int i;
596
597 while (fiemap->fm_mapped_extents)
598 {
599 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
600 AV *ext_av = newAV ();
601
602 av_store (ext_av, 3, newSVuv (extent->fe_flags));
603 av_store (ext_av, 2, newSVval64 (extent->fe_length));
604 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
605 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
606
607 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
608 }
609
610 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
611 }
612 else
613 {
614 SvIV_set (sv_result, fiemap->fm_mapped_extents);
615 PUSHs (sv_result);
616 }
617 }
618#endif
619 }
620 else
621 PUSHs (sv_result);
622 break;
623
650 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 624 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
651 if (req->result > 0) 625 if (req->result > 0)
652 SvIV_set (sv_result, 0); 626 SvIV_set (sv_result, 0);
653 /* FALLTHROUGH */ 627 /* FALLTHROUGH */
654 628
… …
761} 735}
762 736
763/*****************************************************************************/ 737/*****************************************************************************/
764 738
765#if !_POSIX_MAPPED_FILES 739#if !_POSIX_MAPPED_FILES
766# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 740# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
767# define munmap(addr,length) (errno = ENOSYS, -1) 741# define munmap(addr,length) EIO_ENOSYS ()
768#endif 742#endif
769 743
770#if !_POSIX_MEMORY_PROTECTION 744#if !_POSIX_MEMORY_PROTECTION
771# define mprotect(addr,len,prot) (errno = ENOSYS, -1) 745# define mprotect(addr,len,prot) EIO_ENOSYS ()
772# define PROT_NONE 0 746# define PROT_NONE 0
773# define PROT_WRITE 0 747# define PROT_WRITE 0
774# define MAP_PRIVATE 0 748# define MAP_PRIVATE 0
775# define MAP_SHARED 0 749# define MAP_SHARED 0
776# define MAP_FIXED 0 750# define MAP_FIXED 0
… …
920 IV iv; 894 IV iv;
921 } *civ, const_iv[] = { 895 } *civ, const_iv[] = {
922# define const_niv(name, value) { # name, (IV) value }, 896# define const_niv(name, value) { # name, (IV) value },
923# define const_iv(name) { # name, (IV) name }, 897# define const_iv(name) { # name, (IV) name },
924# define const_eio(name) { # name, (IV) EIO_ ## name }, 898# define const_eio(name) { # name, (IV) EIO_ ## name },
899
900 /* you have to re-run ./gendef0 after adding/Removing any constants here */
901
902 const_iv (ENOSYS)
925 const_iv (EXDEV) 903 const_iv (EXDEV)
926 const_iv (ENOSYS) 904 const_iv (EBADR)
905
927 const_iv (O_RDONLY) 906 const_iv (O_RDONLY)
928 const_iv (O_WRONLY) 907 const_iv (O_WRONLY)
929 const_iv (O_RDWR) 908 const_iv (O_RDWR)
930 const_iv (O_CREAT) 909 const_iv (O_CREAT)
931 const_iv (O_TRUNC) 910 const_iv (O_TRUNC)
… …
999 const_iv (MAP_LOCKED) 978 const_iv (MAP_LOCKED)
1000 const_iv (MAP_NORESERVE) 979 const_iv (MAP_NORESERVE)
1001 const_iv (MAP_POPULATE) 980 const_iv (MAP_POPULATE)
1002 const_iv (MAP_NONBLOCK) 981 const_iv (MAP_NONBLOCK)
1003 982
983 const_iv (FIEMAP_FLAG_SYNC)
984 const_iv (FIEMAP_FLAG_XATTR)
985 const_iv (FIEMAP_FLAGS_COMPAT)
986 const_iv (FIEMAP_EXTENT_LAST)
987 const_iv (FIEMAP_EXTENT_UNKNOWN)
988 const_iv (FIEMAP_EXTENT_DELALLOC)
989 const_iv (FIEMAP_EXTENT_ENCODED)
990 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
991 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
992 const_iv (FIEMAP_EXTENT_DATA_INLINE)
993 const_iv (FIEMAP_EXTENT_DATA_TAIL)
994 const_iv (FIEMAP_EXTENT_UNWRITTEN)
995 const_iv (FIEMAP_EXTENT_MERGED)
996 const_iv (FIEMAP_EXTENT_SHARED)
997
998 const_iv (SPLICE_F_MOVE)
999 const_iv (SPLICE_F_NONBLOCK)
1000 const_iv (SPLICE_F_MORE)
1001 const_iv (SPLICE_F_GIFT)
1002
1003 const_iv (SEEK_DATA)
1004 const_iv (SEEK_HOLE)
1005
1006 /* libeio constants */
1007 const_eio (SEEK_SET)
1008 const_eio (SEEK_CUR)
1009 const_eio (SEEK_END)
1010
1004 const_eio (MCL_FUTURE) 1011 const_eio (MCL_FUTURE)
1005 const_eio (MCL_CURRENT) 1012 const_eio (MCL_CURRENT)
1006 1013
1007 const_eio (MS_ASYNC) 1014 const_eio (MS_ASYNC)
1008 const_eio (MS_INVALIDATE) 1015 const_eio (MS_INVALIDATE)
… …
1013 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 1020 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1014 const_eio (SYNC_FILE_RANGE_WRITE) 1021 const_eio (SYNC_FILE_RANGE_WRITE)
1015 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 1022 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1016 1023
1017 const_eio (FALLOC_FL_KEEP_SIZE) 1024 const_eio (FALLOC_FL_KEEP_SIZE)
1025 const_eio (FALLOC_FL_PUNCH_HOLE)
1018 1026
1019 const_eio (READDIR_DENTS) 1027 const_eio (READDIR_DENTS)
1020 const_eio (READDIR_DIRS_FIRST) 1028 const_eio (READDIR_DIRS_FIRST)
1021 const_eio (READDIR_STAT_ORDER) 1029 const_eio (READDIR_STAT_ORDER)
1022 const_eio (READDIR_FOUND_UNKNOWN) 1030 const_eio (READDIR_FOUND_UNKNOWN)
… …
1130 1138
1131 req->type = ix; 1139 req->type = ix;
1132 req->sv1 = newSVsv (fh); 1140 req->sv1 = newSVsv (fh);
1133 req->int1 = fd; 1141 req->int1 = fd;
1134 1142
1135 REQ_SEND (req); 1143 REQ_SEND;
1136} 1144}
1137 1145
1138void 1146void
1139aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1147aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1140 PPCODE: 1148 PPCODE:
… …
1147 req->int1 = fd; 1155 req->int1 = fd;
1148 req->offs = offset; 1156 req->offs = offset;
1149 req->size = nbytes; 1157 req->size = nbytes;
1150 req->int2 = flags; 1158 req->int2 = flags;
1151 1159
1152 REQ_SEND (req); 1160 REQ_SEND;
1153} 1161}
1154 1162
1155void 1163void
1156aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef) 1164aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1157 PPCODE: 1165 PPCODE:
… …
1164 req->int1 = fd; 1172 req->int1 = fd;
1165 req->int2 = mode; 1173 req->int2 = mode;
1166 req->offs = offset; 1174 req->offs = offset;
1167 req->size = len; 1175 req->size = len;
1168 1176
1169 REQ_SEND (req); 1177 REQ_SEND;
1170} 1178}
1171 1179
1172void 1180void
1173aio_close (SV *fh, SV *callback=&PL_sv_undef) 1181aio_close (SV *fh, SV *callback=&PL_sv_undef)
1174 PPCODE: 1182 PPCODE:
… …
1198 req->type = EIO_DUP2; 1206 req->type = EIO_DUP2;
1199 req->int1 = close_fd; 1207 req->int1 = close_fd;
1200 req->sv2 = newSVsv (fh); 1208 req->sv2 = newSVsv (fh);
1201 req->int2 = fd; 1209 req->int2 = fd;
1202 1210
1203 REQ_SEND (req); 1211 REQ_SEND;
1212}
1213
1214void
1215aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1216 PPCODE:
1217{
1218 int fd = s_fileno_croak (fh, 0);
1219 dREQ;
1220
1221 req->type = EIO_SEEK;
1222 req->sv1 = newSVsv (fh);
1223 req->int1 = fd;
1224 req->offs = SvVAL64 (offset);
1225 req->int2 = whence;
1226
1227 REQ_SEND;
1204} 1228}
1205 1229
1206void 1230void
1207aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1231aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1208 ALIAS: 1232 ALIAS:
… …
1229 } 1253 }
1230 else 1254 else
1231 { 1255 {
1232 /* read: check type and grow scalar as necessary */ 1256 /* read: check type and grow scalar as necessary */
1233 SvUPGRADE (data, SVt_PV); 1257 SvUPGRADE (data, SVt_PV);
1258 if (SvLEN (data) >= SvCUR (data))
1234 svptr = SvGROW (data, len + dataoffset + 1); 1259 svptr = SvGROW (data, len + dataoffset + 1);
1260 else if (SvCUR (data) < len + dataoffset)
1261 croak ("length + dataoffset outside of scalar, and cannot grow");
1235 } 1262 }
1236 1263
1237 { 1264 {
1238 dREQ; 1265 dREQ;
1239 1266
… …
1439 aio_link = EIO_LINK 1466 aio_link = EIO_LINK
1440 aio_symlink = EIO_SYMLINK 1467 aio_symlink = EIO_SYMLINK
1441 aio_rename = EIO_RENAME 1468 aio_rename = EIO_RENAME
1442 PPCODE: 1469 PPCODE:
1443{ 1470{
1471 eio_wd wd2 = 0;
1444 dREQ; 1472 dREQ;
1445 eio_wd wd2 = 0;
1446 1473
1447 req->type = ix; 1474 req->type = ix;
1448 req_set_path1 (req, oldpath); 1475 req_set_path1 (req, oldpath);
1449 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1476 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1450 req->int3 = (long)wd2; 1477 req->int3 = (long)wd2;
… …
1536 1563
1537 req->type = EIO_MLOCKALL; 1564 req->type = EIO_MLOCKALL;
1538 req->int1 = flags; 1565 req->int1 = flags;
1539 1566
1540 REQ_SEND; 1567 REQ_SEND;
1568}
1569
1570void
1571aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1572 PPCODE:
1573{
1574 int fd = s_fileno_croak (fh, 0);
1575 dREQ;
1576
1577 req->type = EIO_CUSTOM;
1578 req->sv1 = newSVsv (fh);
1579 req->int1 = fd;
1580
1581 req->feed = fiemap;
1582#if HAVE_FIEMAP
1583 /* keep our fingers crossed that the next two types are 64 bit */
1584 req->offs = start;
1585 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1586 req->int2 = flags;
1587 req->int3 = SvOK (count) ? SvIV (count) : -1;
1588#endif
1589
1590 REQ_SEND;
1541} 1591}
1542 1592
1543void 1593void
1544aio_busy (double delay, SV *callback=&PL_sv_undef) 1594aio_busy (double delay, SV *callback=&PL_sv_undef)
1545 PPCODE: 1595 PPCODE:
… …
1677 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1727 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678 OUTPUT: 1728 OUTPUT:
1679 RETVAL 1729 RETVAL
1680 1730
1681void 1731void
1682mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1732mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1683 PPCODE: 1733 PPCODE:
1684 sv_unmagic (scalar, MMAP_MAGIC); 1734 sv_unmagic (scalar, MMAP_MAGIC);
1685{ 1735{
1686 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1736 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1737 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1720 ALIAS: 1770 ALIAS:
1721 mprotect = 1 1771 mprotect = 1
1722 CODE: 1772 CODE:
1723{ 1773{
1724 STRLEN svlen; 1774 STRLEN svlen;
1725 void *addr = SvPVbyte (scalar, svlen); 1775 void *addr = SvPVbyte (scalar, svlen);
1726 size_t len = SvUV (length); 1776 size_t len = SvUV (length);
1727 1777
1728 if (offset < 0) 1778 if (offset < 0)
1729 offset += svlen; 1779 offset += svlen;
1730 1780
… …
1766 addr = (void *)(((intptr_t)addr) + offset); 1816 addr = (void *)(((intptr_t)addr) + offset);
1767 eio_page_align (&addr, &len); 1817 eio_page_align (&addr, &len);
1768#if _POSIX_MEMLOCK_RANGE 1818#if _POSIX_MEMLOCK_RANGE
1769 RETVAL = munlock (addr, len); 1819 RETVAL = munlock (addr, len);
1770#else 1820#else
1771 RETVAL = ((errno = ENOSYS), -1); 1821 RETVAL = EIO_ENOSYS ();
1772#endif 1822#endif
1773} 1823}
1774 OUTPUT: 1824 OUTPUT:
1775 RETVAL 1825 RETVAL
1776 1826
… …
1778munlockall () 1828munlockall ()
1779 CODE: 1829 CODE:
1780#if _POSIX_MEMLOCK 1830#if _POSIX_MEMLOCK
1781 munlockall (); 1831 munlockall ();
1782#else 1832#else
1783 RETVAL = -1; 1833 RETVAL = EIO_ENOSYS ();
1784 errno = ENOSYS;
1785#endif 1834#endif
1786 OUTPUT: 1835 OUTPUT:
1836 RETVAL
1837
1838int
1839splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1840 CODE:
1841{
1842#if HAVE_LINUX_SPLICE
1843 loff_t off_in_, off_out_;
1844 RETVAL = splice (
1845 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1846 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1847 length, flags
1848 );
1849#else
1850 RETVAL = EIO_ENOSYS ();
1851#endif
1852}
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1858 CODE:
1859#if HAVE_LINUX_SPLICE
1860 RETVAL = tee (rfh, wfh, length, flags);
1861#else
1862 RETVAL = EIO_ENOSYS ();
1863#endif
1864 OUTPUT:
1787 RETVAL 1865 RETVAL
1788 1866
1789void _on_next_submit (SV *cb) 1867void _on_next_submit (SV *cb)
1790 CODE: 1868 CODE:
1791 SvREFCNT_dec (on_next_submit); 1869 SvREFCNT_dec (on_next_submit);

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