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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 UTC vs.
Revision 1.214 by root, Mon May 28 17:00:19 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 64 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 maybe 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
200 break; /* autosizing successful, we are done */
201
202 fiemap->fm_flags = req->int2;
203 fiemap->fm_extent_count = 0;
204
205 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206 return;
207
208 count = fiemap->fm_mapped_extents;
209
210 free (fiemap);
211 }
212
213 req->result = 0;
214
215#else
216 errno = ENOSYS;
217#endif
218}
219
220/*****************************************************************************/
331 221
332enum { 222enum {
333 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334}; 224};
335 225
… …
652 SvSETMAGIC (req->sv2); 542 SvSETMAGIC (req->sv2);
653 PUSHs (sv_result); 543 PUSHs (sv_result);
654 } 544 }
655 break; 545 break;
656 546
547 case EIO_CUSTOM:
548 if (req->feed == fiemap)
549 {
550#if HAVE_FIEMAP
551 if (!req->result)
552 {
553 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
554
555 if (fiemap->fm_extent_count)
556 {
557 AV *av = newAV ();
558 int i;
559
560 while (fiemap->fm_mapped_extents)
561 {
562 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
563 AV *ext_av = newAV ();
564
565 av_store (ext_av, 3, newSVuv (extent->fe_flags));
566 av_store (ext_av, 2, newSVval64 (extent->fe_length));
567 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
568 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
569
570 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
571 }
572
573 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
574 }
575 else
576 {
577 SvIV_set (sv_result, fiemap->fm_mapped_extents);
578 PUSHs (sv_result);
579 }
580 }
581#endif
582 }
583 else
584 PUSHs (sv_result);
585 break;
586
657 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 587 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658 if (req->result > 0) 588 if (req->result > 0)
659 SvIV_set (sv_result, 0); 589 SvIV_set (sv_result, 0);
660 /* FALLTHROUGH */ 590 /* FALLTHROUGH */
661 591
… …
768} 698}
769 699
770/*****************************************************************************/ 700/*****************************************************************************/
771 701
772#if !_POSIX_MAPPED_FILES 702#if !_POSIX_MAPPED_FILES
773# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 703# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
774# define munmap(addr,length) (errno = ENOSYS, -1) 704# define munmap(addr,length) EIO_ENOSYS ()
775#endif 705#endif
776 706
777#if !_POSIX_MEMORY_PROTECTION 707#if !_POSIX_MEMORY_PROTECTION
778# define mprotect(addr,len,prot) (errno = ENOSYS, -1) 708# define mprotect(addr,len,prot) EIO_ENOSYS ()
779# define PROT_NONE 0 709# define PROT_NONE 0
780# define PROT_WRITE 0 710# define PROT_WRITE 0
781# define MAP_PRIVATE 0 711# define MAP_PRIVATE 0
782# define MAP_SHARED 0 712# define MAP_SHARED 0
783# define MAP_FIXED 0 713# define MAP_FIXED 0
… …
927 IV iv; 857 IV iv;
928 } *civ, const_iv[] = { 858 } *civ, const_iv[] = {
929# define const_niv(name, value) { # name, (IV) value }, 859# define const_niv(name, value) { # name, (IV) value },
930# define const_iv(name) { # name, (IV) name }, 860# define const_iv(name) { # name, (IV) name },
931# define const_eio(name) { # name, (IV) EIO_ ## name }, 861# define const_eio(name) { # name, (IV) EIO_ ## name },
862
863 /* you have to re-run ./gendef0 after adding/Removing any constants here */
864
865 const_iv (ENOSYS)
932 const_iv (EXDEV) 866 const_iv (EXDEV)
933 const_iv (ENOSYS) 867 const_iv (EBADR)
868
934 const_iv (O_RDONLY) 869 const_iv (O_RDONLY)
935 const_iv (O_WRONLY) 870 const_iv (O_WRONLY)
936 const_iv (O_RDWR) 871 const_iv (O_RDWR)
937 const_iv (O_CREAT) 872 const_iv (O_CREAT)
938 const_iv (O_TRUNC) 873 const_iv (O_TRUNC)
… …
1006 const_iv (MAP_LOCKED) 941 const_iv (MAP_LOCKED)
1007 const_iv (MAP_NORESERVE) 942 const_iv (MAP_NORESERVE)
1008 const_iv (MAP_POPULATE) 943 const_iv (MAP_POPULATE)
1009 const_iv (MAP_NONBLOCK) 944 const_iv (MAP_NONBLOCK)
1010 945
946 const_iv (FIEMAP_FLAG_SYNC)
947 const_iv (FIEMAP_FLAG_XATTR)
948 const_iv (FIEMAP_FLAGS_COMPAT)
949 const_iv (FIEMAP_EXTENT_LAST)
950 const_iv (FIEMAP_EXTENT_UNKNOWN)
951 const_iv (FIEMAP_EXTENT_DELALLOC)
952 const_iv (FIEMAP_EXTENT_ENCODED)
953 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
954 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
955 const_iv (FIEMAP_EXTENT_DATA_INLINE)
956 const_iv (FIEMAP_EXTENT_DATA_TAIL)
957 const_iv (FIEMAP_EXTENT_UNWRITTEN)
958 const_iv (FIEMAP_EXTENT_MERGED)
959 const_iv (FIEMAP_EXTENT_SHARED)
960
961 const_iv (SPLICE_F_MOVE)
962 const_iv (SPLICE_F_NONBLOCK)
963 const_iv (SPLICE_F_MORE)
964 const_iv (SPLICE_F_GIFT)
965
966 const_iv (SEEK_DATA)
967 const_iv (SEEK_HOLE)
968
969 /* libeio constants */
1011 const_eio (SEEK_SET) 970 const_eio (SEEK_SET)
1012 const_eio (SEEK_CUR) 971 const_eio (SEEK_CUR)
1013 const_eio (SEEK_END) 972 const_eio (SEEK_END)
1014 973
1015 const_eio (MCL_FUTURE) 974 const_eio (MCL_FUTURE)
… …
1216 1175
1217void 1176void
1218aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef) 1177aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1219 PPCODE: 1178 PPCODE:
1220{ 1179{
1221 STRLEN svlen;
1222 int fd = s_fileno_croak (fh, 0); 1180 int fd = s_fileno_croak (fh, 0);
1223 dREQ; 1181 dREQ;
1224 1182
1225 req->type = EIO_SEEK; 1183 req->type = EIO_SEEK;
1226 req->sv1 = newSVsv (fh); 1184 req->sv1 = newSVsv (fh);
… …
1567 1525
1568 REQ_SEND; 1526 REQ_SEND;
1569} 1527}
1570 1528
1571void 1529void
1530aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1531 PPCODE:
1532{
1533 int fd = s_fileno_croak (fh, 0);
1534 dREQ;
1535
1536 req->type = EIO_CUSTOM;
1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539
1540 req->feed = fiemap;
1541#if HAVE_FIEMAP
1542 /* keep our fingers crossed that the next two types are 64 bit */
1543 req->offs = start;
1544 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1545 req->int2 = flags;
1546 req->int3 = SvOK (count) ? SvIV (count) : -1;
1547#endif
1548
1549 REQ_SEND;
1550}
1551
1552void
1572aio_busy (double delay, SV *callback=&PL_sv_undef) 1553aio_busy (double delay, SV *callback=&PL_sv_undef)
1573 PPCODE: 1554 PPCODE:
1574{ 1555{
1575 dREQ; 1556 dREQ;
1576 1557
… …
1705 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1686 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706 OUTPUT: 1687 OUTPUT:
1707 RETVAL 1688 RETVAL
1708 1689
1709void 1690void
1710mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1691mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1711 PPCODE: 1692 PPCODE:
1712 sv_unmagic (scalar, MMAP_MAGIC); 1693 sv_unmagic (scalar, MMAP_MAGIC);
1713{ 1694{
1714 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1695 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1696 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1748 ALIAS: 1729 ALIAS:
1749 mprotect = 1 1730 mprotect = 1
1750 CODE: 1731 CODE:
1751{ 1732{
1752 STRLEN svlen; 1733 STRLEN svlen;
1753 void *addr = SvPVbyte (scalar, svlen); 1734 void *addr = SvPVbyte (scalar, svlen);
1754 size_t len = SvUV (length); 1735 size_t len = SvUV (length);
1755 1736
1756 if (offset < 0) 1737 if (offset < 0)
1757 offset += svlen; 1738 offset += svlen;
1758 1739
… …
1794 addr = (void *)(((intptr_t)addr) + offset); 1775 addr = (void *)(((intptr_t)addr) + offset);
1795 eio_page_align (&addr, &len); 1776 eio_page_align (&addr, &len);
1796#if _POSIX_MEMLOCK_RANGE 1777#if _POSIX_MEMLOCK_RANGE
1797 RETVAL = munlock (addr, len); 1778 RETVAL = munlock (addr, len);
1798#else 1779#else
1799 RETVAL = ((errno = ENOSYS), -1); 1780 RETVAL = EIO_ENOSYS ();
1800#endif 1781#endif
1801} 1782}
1802 OUTPUT: 1783 OUTPUT:
1803 RETVAL 1784 RETVAL
1804 1785
… …
1806munlockall () 1787munlockall ()
1807 CODE: 1788 CODE:
1808#if _POSIX_MEMLOCK 1789#if _POSIX_MEMLOCK
1809 munlockall (); 1790 munlockall ();
1810#else 1791#else
1811 RETVAL = -1; 1792 RETVAL = EIO_ENOSYS ();
1812 errno = ENOSYS;
1813#endif 1793#endif
1814 OUTPUT: 1794 OUTPUT:
1795 RETVAL
1796
1797int
1798splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1799 CODE:
1800{
1801#if HAVE_LINUX_SPLICE
1802 loff_t off_in_, off_out_;
1803 RETVAL = splice (
1804 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1805 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1806 length, flags
1807 );
1808#else
1809 RETVAL = EIO_ENOSYS ();
1810#endif
1811}
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1817 CODE:
1818#if HAVE_LINUX_SPLICE
1819 RETVAL = tee (rfh, wfh, length, flags);
1820#else
1821 RETVAL = EIO_ENOSYS ();
1822#endif
1823 OUTPUT:
1815 RETVAL 1824 RETVAL
1816 1825
1817void _on_next_submit (SV *cb) 1826void _on_next_submit (SV *cb)
1818 CODE: 1827 CODE:
1819 SvREFCNT_dec (on_next_submit); 1828 SvREFCNT_dec (on_next_submit);

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