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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.245 by root, Fri Jun 23 03:23:19 2017 UTC vs.
Revision 1.267 by root, Sat Aug 25 19:25:32 2018 UTC

… …
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8 8
9#include "schmorp.h" 9#if !defined mg_findext
10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
11#endif
10 12
11#include <stddef.h> 13#include <stddef.h>
12#include <stdlib.h> 14#include <stdlib.h>
13#include <errno.h> 15#include <errno.h>
14#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
15#include <sys/stat.h> 18#include <sys/stat.h>
16#include <limits.h> 19#include <limits.h>
17#include <fcntl.h> 20#include <fcntl.h>
18#include <sched.h> 21#include <sched.h>
22
23#if HAVE_SYS_MKDEV_H
24# include <sys/mkdev.h>
25#elif HAVE_SYS_SYSMACROS_H
26# include <sys/sysmacros.h>
27#endif
19 28
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES 29#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h> 30# include <sys/mman.h>
22#endif 31#endif
23 32
… …
75 #undef fchmod 84 #undef fchmod
76 #undef dup 85 #undef dup
77 #undef dup2 86 #undef dup2
78 #undef abort 87 #undef abort
79 #undef pipe 88 #undef pipe
89 #undef utime
80 90
81 #define EIO_STRUCT_STAT struct _stati64 91 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64 92 #define EIO_STRUCT_STATI64
83 93
84#else 94#else
… …
103 113
104#define expect_false(expr) expect ((expr) != 0, 0) 114#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1) 115#define expect_true(expr) expect ((expr) != 0, 1)
106 116
107/*****************************************************************************/ 117/*****************************************************************************/
118
119#include "config.h"
120
121#if HAVE_ST_XTIMENSEC
122# define ATIMENSEC PL_statcache.st_atimensec
123# define MTIMENSEC PL_statcache.st_mtimensec
124# define CTIMENSEC PL_statcache.st_ctimensec
125#elif HAVE_ST_XTIMESPEC
126# define ATIMENSEC PL_statcache.st_atim.tv_nsec
127# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
128# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
129#else
130# define ATIMENSEC 0
131# define MTIMENSEC 0
132# define CTIMENSEC 0
133#endif
134
135#if HAVE_ST_BIRTHTIMENSEC
136# define BTIMESEC PL_statcache.st_birthtime
137# define BTIMENSEC PL_statcache.st_birthtimensec
138#elif HAVE_ST_BIRTHTIMESPEC
139# define BTIMESEC PL_statcache.st_birthtim.tv_sec
140# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
141#else
142# define BTIMESEC 0
143# define BTIMENSEC 0
144#endif
145
146#if HAVE_ST_GEN
147# define ST_GEN PL_statcache.st_gen
148#else
149# define ST_GEN 0
150#endif
151
152#include "schmorp.h"
153
154#if HAVE_EVENTFD
155# include <sys/eventfd.h>
156#endif
157
158#if HAVE_TIMERFD
159# include <sys/timerfd.h>
160#endif
161
162#if HAVE_RLIMITS
163 #include <sys/time.h>
164 #include <sys/resource.h>
165#endif
108 166
109typedef SV SV8; /* byte-sv, used for argument-checking */ 167typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */ 168typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */ 169typedef int aio_wfd; /* write file descriptor */
112 170
… …
119 STRLEN stroffset; \ 177 STRLEN stroffset; \
120 SV *self; 178 SV *self;
121 179
122#define EIO_NO_WRAPPERS 1 180#define EIO_NO_WRAPPERS 1
123 181
124#include "libeio/config.h"
125#include "libeio/eio.h" 182#include "libeio/eio.h"
126 183
127static int req_invoke (eio_req *req); 184static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req) 185#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp); 186static void req_destroy (eio_req *grp);
… …
145# else 202# else
146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 203# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147# endif 204# endif
148#endif 205#endif
149 206
207#ifndef makedev
208# define makedev(maj,min) (((maj) << 8) | (min))
209#endif
210#ifndef major
211# define major(dev) ((dev) >> 8)
212#endif
213#ifndef minor
214# define minor(dev) ((dev) & 0xff)
215#endif
216
217/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
218#ifdef __sun
219# undef PAGESIZE
220#endif
221
222#if PAGESIZE <= 0
223# define PAGESIZE sysconf (_SC_PAGESIZE)
224#endif
225
226/*****************************************************************************/
227
228#if !_POSIX_MAPPED_FILES
229# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
230# define munmap(addr,length) EIO_ENOSYS ()
231#endif
232
233#if !_POSIX_MEMORY_PROTECTION
234# define mprotect(addr,len,prot) EIO_ENOSYS ()
235#endif
236
237#if !MREMAP_MAYMOVE
238# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
239#endif
240
241#define FOREIGN_MAGIC PERL_MAGIC_ext
242
243static int ecb_cold
244mmap_free (pTHX_ SV *sv, MAGIC *mg)
245{
246 int old_errno = errno;
247 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
248 errno = old_errno;
249
250 mg->mg_obj = 0; /* just in case */
251
252 SvREADONLY_off (sv);
253
254 if (SvPVX (sv) != mg->mg_ptr)
255 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
256
257 SvCUR_set (sv, 0);
258 SvPVX (sv) = 0;
259 SvOK_off (sv);
260
261 return 0;
262}
263
264static MGVTBL mmap_vtbl = {
265 0, 0, 0, 0, mmap_free
266};
267
268static int ecb_cold
269sysfree_free (pTHX_ SV *sv, MAGIC *mg)
270{
271 free (mg->mg_ptr);
272 mg->mg_obj = 0; /* just in case */
273
274 SvREADONLY_off (sv);
275
276 if (SvPVX (sv) != mg->mg_ptr)
277 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
278
279 SvCUR_set (sv, 0);
280 SvPVX (sv) = 0;
281 SvOK_off (sv);
282
283 return 0;
284}
285
286static MGVTBL sysfree_vtbl = {
287 0, 0, 0, 0, sysfree_free
288};
289
290/*****************************************************************************/
291
292/* helper: set scalar to foreign ptr with custom free */
293static void
294sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
295{
296 sv_force_normal (sv);
297
298 /* we store the length in mg_obj, as namlen is I32 :/ */
299 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
300 ->mg_obj = (SV *)length;
301
302 SvUPGRADE (sv, SVt_PV); /* nop... */
303
304 if (SvLEN (sv))
305 Safefree (SvPVX (sv));
306
307 SvPVX (sv) = (char *)addr;
308 SvCUR_set (sv, length);
309 SvLEN_set (sv, 0);
310 SvPOK_only (sv);
311}
312
313static void
314sv_clear_foreign (SV *sv)
315{
316 /* todo: iterate over magic and only free ours, but of course */
317 /* the perl5porters will call that (correct) behaviour buggy */
318 sv_unmagic (sv, FOREIGN_MAGIC);
319}
320
321/*****************************************************************************/
322
150/* defines all sorts of constants to 0 unless they are already defined */ 323/* defines all sorts of constants to 0 unless they are already defined */
151/* also provides const_iv_ and const_niv_ macros for them */ 324/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h" 325#include "def0.h"
153
154#ifndef makedev
155# define makedev(maj,min) (((maj) << 8) | (min))
156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
163
164#if PAGESIZE <= 0
165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
167 326
168/*****************************************************************************/ 327/*****************************************************************************/
169 328
170static void 329static void
171fiemap (eio_req *req) 330fiemap (eio_req *req)
… …
262 errno = ENOSYS; 421 errno = ENOSYS;
263#endif 422#endif
264} 423}
265 424
266/*****************************************************************************/ 425/*****************************************************************************/
426
427static int close_fd; /* dummy fd to close fds via dup2 */
267 428
268enum { 429enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 430 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270}; 431};
271 432
… …
591 SvSETMAGIC (req->sv2); 752 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result); 753 PUSHs (sv_result);
593 } 754 }
594 break; 755 break;
595 756
757 case EIO_SLURP:
758 {
759 if (req->result >= 0)
760 {
761 /* if length was originally not known, we steal the malloc'ed memory */
762 if (req->flags & EIO_FLAG_PTR2_FREE)
763 {
764 req->flags &= ~EIO_FLAG_PTR2_FREE;
765 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
766 }
767 else
768 {
769 SvCUR_set (req->sv2, req->result);
770 *SvEND (req->sv2) = 0;
771 SvPOK_only (req->sv2);
772 }
773
774 SvSETMAGIC (req->sv2);
775 }
776
777 PUSHs (sv_result);
778 }
779 break;
780
596 case EIO_CUSTOM: 781 case EIO_CUSTOM:
597 if (req->feed == fiemap) 782 if (req->feed == fiemap)
598 { 783 {
599#if HAVE_FIEMAP 784#if HAVE_FIEMAP
600 if (!req->result) 785 if (!req->result)
… …
743 create_respipe (); 928 create_respipe ();
744 929
745 if (eio_init (want_poll, done_poll) < 0) 930 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library"); 931 croak ("IO::AIO: unable to initialise eio library");
747} 932}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786 933
787/*****************************************************************************/ 934/*****************************************************************************/
788 935
789static SV * 936static SV *
790get_cb (SV *cb_sv) 937get_cb (SV *cb_sv)
… …
886 req_set_path1 (req, fh_or_path); 1033 req_set_path1 (req, fh_or_path);
887 break; 1034 break;
888 } 1035 }
889} 1036}
890 1037
1038/*****************************************************************************/
1039
1040static void
1041ts_set (struct timespec *ts, NV value)
1042{
1043 ts->tv_sec = value;
1044 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1045}
1046
1047static NV
1048ts_get (const struct timespec *ts)
1049{
1050 return ts->tv_sec + ts->tv_nsec * 1e-9;
1051}
1052
1053/*****************************************************************************/
1054
891XS(boot_IO__AIO) ecb_cold; 1055XS(boot_IO__AIO) ecb_cold;
892 1056
893MODULE = IO::AIO PACKAGE = IO::AIO 1057MODULE = IO::AIO PACKAGE = IO::AIO
894 1058
895PROTOTYPES: ENABLE 1059PROTOTYPES: ENABLE
… …
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL) 1088 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL) 1089 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) 1090 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) 1091 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) 1092 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
930 1093
931 /* the second block will be 0 when missing */ 1094 /* the second block will be 0 when missing */
1095 const_iv (O_ACCMODE)
1096
932 const_iv (O_RDONLY) 1097 const_iv (O_RDONLY)
933 const_iv (O_WRONLY) 1098 const_iv (O_WRONLY)
934 const_iv (O_RDWR) 1099 const_iv (O_RDWR)
935 const_iv (O_CREAT) 1100 const_iv (O_CREAT)
936 const_iv (O_TRUNC) 1101 const_iv (O_TRUNC)
… …
995 const_iv (MAP_NONBLOCK) 1160 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN) 1161 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT) 1162 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB) 1163 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK) 1164 const_iv (MAP_STACK)
1165
1166 const_iv (MREMAP_MAYMOVE)
1167 const_iv (MREMAP_FIXED)
1168
1169 const_iv (F_DUPFD_CLOEXEC)
1170
1171 const_iv (MSG_CMSG_CLOEXEC)
1172 const_iv (SOCK_CLOEXEC)
1173
1174 const_iv (F_OFD_GETLK)
1175 const_iv (F_OFD_SETLK)
1176 const_iv (F_OFD_GETLKW)
1000 1177
1001 const_iv (FIFREEZE) 1178 const_iv (FIFREEZE)
1002 const_iv (FITHAW) 1179 const_iv (FITHAW)
1003 const_iv (FITRIM) 1180 const_iv (FITRIM)
1004 const_iv (FICLONE) 1181 const_iv (FICLONE)
… …
1073 const_iv (SPLICE_F_MOVE) 1250 const_iv (SPLICE_F_MOVE)
1074 const_iv (SPLICE_F_NONBLOCK) 1251 const_iv (SPLICE_F_NONBLOCK)
1075 const_iv (SPLICE_F_MORE) 1252 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT) 1253 const_iv (SPLICE_F_GIFT)
1077 1254
1255 const_iv (EFD_CLOEXEC)
1256 const_iv (EFD_NONBLOCK)
1257 const_iv (EFD_SEMAPHORE)
1258
1259 const_iv (CLOCK_REALTIME)
1260 const_iv (CLOCK_MONOTONIC)
1261 const_iv (CLOCK_BOOTTIME)
1262 const_iv (CLOCK_REALTIME_ALARM)
1263 const_iv (CLOCK_BOOTTIME_ALARM)
1264
1265 const_iv (TFD_NONBLOCK)
1266 const_iv (TFD_CLOEXEC)
1267
1268 const_iv (TFD_TIMER_ABSTIME)
1269 const_iv (TFD_TIMER_CANCEL_ON_SET)
1270
1078 /* these are libeio constants, and are independent of gendef0 */ 1271 /* these are libeio constants, and are independent of gendef0 */
1079 const_eio (SEEK_SET) 1272 const_eio (SEEK_SET)
1080 const_eio (SEEK_CUR) 1273 const_eio (SEEK_CUR)
1081 const_eio (SEEK_END) 1274 const_eio (SEEK_END)
1082 1275
… …
1095 1288
1096 const_eio (FALLOC_FL_KEEP_SIZE) 1289 const_eio (FALLOC_FL_KEEP_SIZE)
1097 const_eio (FALLOC_FL_PUNCH_HOLE) 1290 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE) 1291 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE) 1292 const_eio (FALLOC_FL_ZERO_RANGE)
1293 const_eio (FALLOC_FL_INSERT_RANGE)
1294 const_eio (FALLOC_FL_UNSHARE_RANGE)
1100 1295
1101 const_eio (RENAME_NOREPLACE) 1296 const_eio (RENAME_NOREPLACE)
1102 const_eio (RENAME_EXCHANGE) 1297 const_eio (RENAME_EXCHANGE)
1103 const_eio (RENAME_WHITEOUT) 1298 const_eio (RENAME_WHITEOUT)
1104 1299
… …
1126 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) 1321 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1127 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); 1322 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1128 1323
1129 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1324 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1130 1325
1326 /* allocate dummy pipe fd for aio_close */
1327 {
1328 int pipefd [2];
1329
1330 if (
1331#ifdef _WIN32
1332 _pipe (pipefd, 1, _O_BINARY) < 0
1333#else
1334 pipe (pipefd) < 0
1335 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1336#endif
1337 || close (pipefd [1]) < 0
1338 )
1339 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1340
1341 close_fd = pipefd [0];
1342 }
1343
1131 reinit (); 1344 reinit ();
1132} 1345}
1133 1346
1134void 1347void
1135reinit () 1348reinit ()
… …
1257 1470
1258void 1471void
1259aio_close (SV *fh, SV *callback = &PL_sv_undef) 1472aio_close (SV *fh, SV *callback = &PL_sv_undef)
1260 PPCODE: 1473 PPCODE:
1261{ 1474{
1262 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1263 int fd = s_fileno_croak (fh, 0); 1475 int fd = s_fileno_croak (fh, 0);
1264 dREQ; 1476 dREQ;
1265
1266 if (expect_false (close_fd < 0))
1267 {
1268 int pipefd [2];
1269
1270 if (
1271#ifdef _WIN32
1272 _pipe (pipefd, 1, _O_BINARY) < 0
1273#else
1274 pipe (pipefd) < 0
1275 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1276#endif
1277 || close (pipefd [1]) < 0
1278 )
1279 abort (); /*D*/
1280
1281 close_fd = pipefd [0];
1282 }
1283 1477
1284 req->type = EIO_DUP2; 1478 req->type = EIO_DUP2;
1285 req->int1 = close_fd; 1479 req->int1 = close_fd;
1286 req->sv2 = newSVsv (fh); 1480 req->sv2 = newSVsv (fh);
1287 req->int2 = fd; 1481 req->int2 = fd;
… …
1463 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1657 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1464 1658
1465 REQ_SEND; 1659 REQ_SEND;
1466} 1660}
1467 1661
1662void
1663st_xtime ()
1664 ALIAS:
1665 st_atime = 0x01
1666 st_mtime = 0x02
1667 st_ctime = 0x04
1668 st_btime = 0x08
1669 st_xtime = 0x0f
1670 PPCODE:
1671 EXTEND (SP, 4);
1672 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1673 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1674 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1675 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1676
1677void
1678st_xtimensec ()
1679 ALIAS:
1680 st_atimensec = 0x01
1681 st_mtimensec = 0x02
1682 st_ctimensec = 0x04
1683 st_btimensec = 0x08
1684 st_xtimensec = 0x0f
1685 st_btimesec = 0x10
1686 st_gen = 0x20
1687 PPCODE:
1688 EXTEND (SP, 4);
1689 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1690 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1691 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1692 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1693 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1694 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1695
1468UV 1696UV
1469major (UV dev) 1697major (UV dev)
1470 ALIAS: 1698 ALIAS:
1471 minor = 1 1699 minor = 1
1472 CODE: 1700 CODE:
… …
1722 req->int2 = flags; 1950 req->int2 = flags;
1723 req->int3 = SvOK (count) ? SvIV (count) : -1; 1951 req->int3 = SvOK (count) ? SvIV (count) : -1;
1724#endif 1952#endif
1725 1953
1726 REQ_SEND; 1954 REQ_SEND;
1955}
1956
1957void
1958aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1959 PPCODE:
1960{
1961 char *svptr = 0;
1962
1963 sv_clear_foreign (data);
1964
1965 if (length) /* known length, directly read into scalar */
1966 {
1967 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1968 svptr = sv_grow (data, length + 1);
1969 else if (SvCUR (data) < length)
1970 croak ("length outside of scalar, and cannot grow");
1971 else
1972 svptr = SvPVbyte_nolen (data);
1973 }
1974
1975 {
1976 dREQ;
1977
1978 req->type = EIO_SLURP;
1979 req_set_path1 (req, pathname);
1980 req->offs = offset;
1981 req->size = length;
1982 req->sv2 = SvREFCNT_inc (data);
1983 req->ptr2 = svptr;
1984
1985 if (!SvREADONLY (data))
1986 {
1987 SvREADONLY_on (data);
1988 req->flags |= FLAG_SV2_RO_OFF;
1989 }
1990
1991 REQ_SEND;
1992 }
1727} 1993}
1728 1994
1729void 1995void
1730aio_busy (double delay, SV *callback = &PL_sv_undef) 1996aio_busy (double delay, SV *callback = &PL_sv_undef)
1731 PPCODE: 1997 PPCODE:
… …
1868 RETVAL 2134 RETVAL
1869 2135
1870void 2136void
1871mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) 2137mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1872 PPCODE: 2138 PPCODE:
1873 sv_unmagic (scalar, MMAP_MAGIC); 2139 sv_clear_foreign (scalar);
1874{ 2140{
1875 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 2141 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1876 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 2142 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1877 if (addr == (void *)-1) 2143 if (addr == (void *)-1)
1878 XSRETURN_NO; 2144 XSRETURN_NO;
1879 2145
1880 sv_force_normal (scalar); 2146 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1881
1882 /* we store the length in mg_obj, as namlen is I32 :/ */
1883 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1884 ->mg_obj = (SV *)length;
1885
1886 SvUPGRADE (scalar, SVt_PV); /* nop... */
1887 2147
1888 if (!(prot & PROT_WRITE)) 2148 if (!(prot & PROT_WRITE))
1889 SvREADONLY_on (scalar); 2149 SvREADONLY_on (scalar);
1890 2150
1891 if (SvLEN (scalar))
1892 Safefree (SvPVX (scalar));
1893
1894 SvPVX (scalar) = (char *)addr;
1895 SvCUR_set (scalar, length);
1896 SvLEN_set (scalar, 0);
1897 SvPOK_only (scalar);
1898
1899 XSRETURN_YES; 2151 XSRETURN_YES;
1900} 2152}
1901 2153
1902void 2154void
1903munmap (SV *scalar) 2155munmap (SV *scalar)
1904 CODE: 2156 CODE:
1905 sv_unmagic (scalar, MMAP_MAGIC); 2157 sv_clear_foreign (scalar);
2158
2159SV *
2160mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2161 CODE:
2162{
2163 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2164 void *new;
2165
2166 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2167 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2168
2169 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2170
2171 RETVAL = &PL_sv_no;
2172
2173 if (new != (void *)-1)
2174 {
2175 RETVAL = new == (void *)mg->mg_ptr
2176 ? newSVpvn ("0 but true", 10)
2177 : &PL_sv_yes;
2178
2179 mg->mg_ptr = (char *)new;
2180 mg->mg_obj = (SV *)new_length;
2181
2182 SvPVX (scalar) = mg->mg_ptr;
2183 SvCUR_set (scalar, new_length);
2184 }
2185}
2186 OUTPUT:
2187 RETVAL
1906 2188
1907int 2189int
1908madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) 2190madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1909 ALIAS: 2191 ALIAS:
1910 mprotect = 1 2192 mprotect = 1
1911 CODE: 2193 CODE:
1912{ 2194{
1913 STRLEN svlen; 2195 STRLEN svlen;
… …
1934} 2216}
1935 OUTPUT: 2217 OUTPUT:
1936 RETVAL 2218 RETVAL
1937 2219
1938int 2220int
1939munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2221munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1940 CODE: 2222 CODE:
1941{ 2223{
1942 STRLEN svlen; 2224 STRLEN svlen;
1943 void *addr = SvPVbyte (scalar, svlen); 2225 void *addr = SvPVbyte (scalar, svlen);
1944 size_t len = SvUV (length); 2226 size_t len = SvUV (length);
… …
2040 { 2322 {
2041 EXTEND (SP, 2); 2323 EXTEND (SP, 2);
2042 PUSHs (newmortalFH (fd[0], O_RDONLY)); 2324 PUSHs (newmortalFH (fd[0], O_RDONLY));
2043 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2325 PUSHs (newmortalFH (fd[1], O_WRONLY));
2044 } 2326 }
2327}
2328
2329void
2330eventfd (unsigned int initval = 0, int flags = 0)
2331 PPCODE:
2332{
2333 int fd;
2334#if HAVE_EVENTFD
2335 fd = eventfd (initval, flags);
2336#else
2337 fd = (errno = ENOSYS, -1);
2338#endif
2339
2340 XPUSHs (newmortalFH (fd, O_RDWR));
2341}
2342
2343void
2344timerfd_create (int clockid, int flags = 0)
2345 PPCODE:
2346{
2347 int fd;
2348#if HAVE_TIMERFD
2349 fd = timerfd_create (clockid, flags);
2350#else
2351 fd = (errno = ENOSYS, -1);
2352#endif
2353
2354 XPUSHs (newmortalFH (fd, O_RDWR));
2355}
2356
2357void
2358timerfd_settime (SV *fh, int flags, NV interval, NV value)
2359 PPCODE:
2360{
2361 int fd = s_fileno_croak (fh, 0);
2362#if HAVE_TIMERFD
2363 int res;
2364 struct itimerspec its, ots;
2365
2366 ts_set (&its.it_interval, interval);
2367 ts_set (&its.it_value , value);
2368 res = timerfd_settime (fd, flags, &its, &ots);
2369
2370 if (!res)
2371 {
2372 EXTEND (SP, 2);
2373 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2374 PUSHs (newSVnv (ts_get (&ots.it_value)));
2375 }
2376#else
2377 errno = ENOSYS;
2378#endif
2379}
2380
2381void
2382timerfd_gettime (SV *fh)
2383 PPCODE:
2384{
2385 int fd = s_fileno_croak (fh, 0);
2386#if HAVE_TIMERFD
2387 int res;
2388 struct itimerspec ots;
2389 res = timerfd_gettime (fd, &ots);
2390
2391 if (!res)
2392 {
2393 EXTEND (SP, 2);
2394 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2395 PUSHs (newSVnv (ts_get (&ots.it_value)));
2396 }
2397#else
2398 errno = ENOSYS;
2399#endif
2400}
2401
2402UV
2403get_fdlimit ()
2404 CODE:
2405#if HAVE_RLIMITS
2406 struct rlimit rl;
2407 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2408 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2409#endif
2410 XSRETURN_UNDEF;
2411 OUTPUT:
2412 RETVAL
2413
2414void
2415min_fdlimit (UV limit = 0x7fffffffU)
2416 CODE:
2417{
2418#if HAVE_RLIMITS
2419 struct rlimit rl;
2420 rlim_t orig_rlim_max;
2421 UV bit;
2422
2423 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2424 goto fail;
2425
2426 if (rl.rlim_cur == RLIM_INFINITY)
2427 XSRETURN_YES;
2428
2429 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2430
2431 if (rl.rlim_cur < limit)
2432 {
2433 rl.rlim_cur = limit;
2434
2435 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2436 rl.rlim_max = rl.rlim_cur;
2437 }
2438
2439 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2440 XSRETURN_YES;
2441
2442 if (errno == EPERM)
2443 {
2444 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2445 /* our limit overflows a system-wide limit */
2446 /* try an adaptive algorithm, but do not lower the hardlimit */
2447 rl.rlim_max = 0;
2448 for (bit = 0x40000000U; bit; bit >>= 1)
2449 {
2450 rl.rlim_max |= bit;
2451 rl.rlim_cur = rl.rlim_max;
2452
2453 /* nevr decrease the hard limit */
2454 if (rl.rlim_max < orig_rlim_max)
2455 break;
2456
2457 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2458 rl.rlim_max &= ~bit; /* too high, remove bit again */
2459 }
2460
2461 /* now, raise the soft limit to the max permitted */
2462 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2463 {
2464 rl.rlim_cur = rl.rlim_max;
2465 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2466 errno = EPERM;
2467 }
2468 }
2469#endif
2470 fail:
2471 XSRETURN_UNDEF;
2045} 2472}
2046 2473
2047void _on_next_submit (SV *cb) 2474void _on_next_submit (SV *cb)
2048 CODE: 2475 CODE:
2049 SvREFCNT_dec (on_next_submit); 2476 SvREFCNT_dec (on_next_submit);

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