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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.255 by root, Tue Feb 20 06:05:19 2018 UTC vs.
Revision 1.287 by root, Tue Dec 29 15:28:02 2020 UTC

… …
3#include <errno.h> 3#include <errno.h>
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#include "perliol.h"
9
10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
8 13
9#include <stddef.h> 14#include <stddef.h>
10#include <stdlib.h> 15#include <stdlib.h>
11#include <errno.h> 16#include <errno.h>
12#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
13#include <sys/stat.h> 19#include <sys/stat.h>
14#include <limits.h> 20#include <limits.h>
15#include <fcntl.h> 21#include <fcntl.h>
16#include <sched.h> 22#include <sched.h>
17
18#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
19# include <sys/mman.h>
20#endif
21 23
22/* the incompetent fool that created musl keeps __linux__, refuses 24/* the incompetent fool that created musl keeps __linux__, refuses
23 * to implement any linux standard apis, and also has no way to test 25 * to implement any linux standard apis, and also has no way to test
24 * for his broken iplementation. don't complain to me if this fails 26 * for his broken iplementation. don't complain to me if this fails
25 * for you. 27 * for you.
… …
73 #undef fchmod 75 #undef fchmod
74 #undef dup 76 #undef dup
75 #undef dup2 77 #undef dup2
76 #undef abort 78 #undef abort
77 #undef pipe 79 #undef pipe
80 #undef utime
78 81
79 #define EIO_STRUCT_STAT struct _stati64 82 #define EIO_STRUCT_STAT struct _stati64
80 #define EIO_STRUCT_STATI64 83 #define EIO_STRUCT_STATI64
81 84
82#else 85#else
83 86
84 #include <sys/time.h> 87 #include <sys/time.h>
85 #include <sys/select.h> 88 #include <sys/select.h>
89 #include <sys/wait.h>
86 #include <unistd.h> 90 #include <unistd.h>
87 #include <utime.h> 91 #include <utime.h>
88 #include <signal.h> 92 #include <signal.h>
89 93
90 #define EIO_STRUCT_STAT Stat_t 94 #define EIO_STRUCT_STAT Stat_t
… …
102#define expect_false(expr) expect ((expr) != 0, 0) 106#define expect_false(expr) expect ((expr) != 0, 0)
103#define expect_true(expr) expect ((expr) != 0, 1) 107#define expect_true(expr) expect ((expr) != 0, 1)
104 108
105/*****************************************************************************/ 109/*****************************************************************************/
106 110
107#include "libeio/config.h" 111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
124# include <sys/uio.h>
125#endif
126
127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
108 157
109#include "schmorp.h" 158#include "schmorp.h"
110 159
111#if HAVE_EVENTFD 160#if HAVE_EVENTFD
112# include <sys/eventfd.h> 161# include <sys/eventfd.h>
… …
159# else 208# else
160# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
161# endif 210# endif
162#endif 211#endif
163 212
164/* defines all sorts of constants to 0 unless they are already defined */
165/* also provides const_iv_ and const_niv_ macros for them */
166#include "def0.h"
167
168#ifndef makedev 213#ifndef makedev
169# define makedev(maj,min) (((maj) << 8) | (min)) 214# define makedev(maj,min) (((maj) << 8) | (min))
170#endif 215#endif
171#ifndef major 216#ifndef major
172# define major(dev) ((dev) >> 8) 217# define major(dev) ((dev) >> 8)
173#endif 218#endif
174#ifndef minor 219#ifndef minor
175# define minor(dev) ((dev) & 0xff) 220# define minor(dev) ((dev) & 0xff)
176#endif 221#endif
177 222
223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
224#ifdef __sun
225# undef PAGESIZE
226#endif
227
178#if PAGESIZE <= 0 228#if PAGESIZE <= 0
179# define PAGESIZE sysconf (_SC_PAGESIZE) 229# define PAGESIZE sysconf (_SC_PAGESIZE)
180#endif 230#endif
181 231
232#if HAVE_SYSCALL
233#include <sys/syscall.h>
234#else
235# define syscall(nr,...) (errno = ENOSYS, -1)
236#endif
237
182/*****************************************************************************/ 238/*****************************************************************************/
183 239
184#if !_POSIX_MAPPED_FILES 240#if !_POSIX_MAPPED_FILES
185# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS () 241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
186# define munmap(addr,length) EIO_ENOSYS () 242# define munmap(addr,length) EIO_ENOSYS ()
187#endif 243#endif
188 244
189#if !_POSIX_MEMORY_PROTECTION 245#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS () 246# define mprotect(addr,len,prot) EIO_ENOSYS ()
247#endif
248
249#if !MREMAP_MAYMOVE
250# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
191#endif 251#endif
192 252
193#define FOREIGN_MAGIC PERL_MAGIC_ext 253#define FOREIGN_MAGIC PERL_MAGIC_ext
194 254
195static int ecb_cold 255static int ecb_cold
… …
240}; 300};
241 301
242/*****************************************************************************/ 302/*****************************************************************************/
243 303
244/* helper: set scalar to foreign ptr with custom free */ 304/* helper: set scalar to foreign ptr with custom free */
305ecb_noinline
245static void 306static void
246sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length) 307sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
247{ 308{
248 sv_force_normal (sv); 309 sv_force_normal (sv);
249 310
… …
267{ 328{
268 /* todo: iterate over magic and only free ours, but of course */ 329 /* todo: iterate over magic and only free ours, but of course */
269 /* the perl5porters will call that (correct) behaviour buggy */ 330 /* the perl5porters will call that (correct) behaviour buggy */
270 sv_unmagic (sv, FOREIGN_MAGIC); 331 sv_unmagic (sv, FOREIGN_MAGIC);
271} 332}
333
334/*****************************************************************************/
335
336/* defines all sorts of constants to 0 unless they are already defined */
337/* also provides const_iv_ and const_niv_ macros for them */
338#include "def0.h"
272 339
273/*****************************************************************************/ 340/*****************************************************************************/
274 341
275static void 342static void
276fiemap (eio_req *req) 343fiemap (eio_req *req)
… …
284 int count = req->int3; 351 int count = req->int3;
285 352
286 req->flags |= EIO_FLAG_PTR1_FREE; 353 req->flags |= EIO_FLAG_PTR1_FREE;
287 354
288 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */ 355 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
289 /* increase in 3.5kb steps */ 356 /* increase in fixed steps */
290 if (count < 0) 357 if (count < 0)
291 count = 8; 358 count = 8;
292 359
293 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); 360 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
294 errno = ENOMEM; 361 errno = ENOMEM;
… …
347 414
348 for (count = 0; count < incmap->fm_mapped_extents; ++count) 415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
349 { 416 {
350 struct fiemap_extent *e = incmap->fm_extents + count; 417 struct fiemap_extent *e = incmap->fm_extents + count;
351 418
419 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
420
352 if (e->fe_logical + e->fe_length >= end_offset) 421 if (e->fe_logical >= end_offset)
353 goto done; 422 goto done;
354
355 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
356 423
357 if (e->fe_flags & FIEMAP_EXTENT_LAST) 424 if (e->fe_flags & FIEMAP_EXTENT_LAST)
358 goto done; 425 goto done;
359 426
360 } 427 }
… …
367 errno = ENOSYS; 434 errno = ENOSYS;
368#endif 435#endif
369} 436}
370 437
371/*****************************************************************************/ 438/*****************************************************************************/
439
440static int close_fd; /* dummy fd to close fds via dup2 */
441
442#if HAVE_STATX
443static struct statx stx;
444#define statx_offsetof(member) offsetof (struct statx, member)
445#define eio__statx statx
446#else
447#define statx_offsetof(member) 0
448#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
449#endif
372 450
373enum { 451enum {
374 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 452 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
375}; 453};
376 454
… …
400 /* read any signals sent by the worker threads */ 478 /* read any signals sent by the worker threads */
401 s_epipe_drain (&respipe); 479 s_epipe_drain (&respipe);
402} 480}
403 481
404/* must be called at most once */ 482/* must be called at most once */
483ecb_noinline
405static SV * 484static SV *
406req_sv (aio_req req, HV *stash) 485req_sv (aio_req req, HV *stash)
407{ 486{
408 if (!req->self) 487 if (!req->self)
409 { 488 {
… …
418newSVaio_wd (aio_wd wd) 497newSVaio_wd (aio_wd wd)
419{ 498{
420 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash); 499 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
421} 500}
422 501
502ecb_noinline
423static aio_req 503static aio_req
424SvAIO_REQ (SV *sv) 504SvAIO_REQ (SV *sv)
425{ 505{
426 MAGIC *mg; 506 MAGIC *mg;
427 507
… …
490 FREETMPS; 570 FREETMPS;
491 LEAVE; 571 LEAVE;
492 } 572 }
493} 573}
494 574
575ecb_noinline
495static void 576static void
496req_submit (eio_req *req) 577req_submit (eio_req *req)
497{ 578{
498 eio_submit (req); 579 eio_submit (req);
499 580
… …
760 } 841 }
761 else 842 else
762 PUSHs (sv_result); 843 PUSHs (sv_result);
763 break; 844 break;
764 845
846#if 0
847 case EIO_CLOSE:
848 PerlIOUnix_refcnt_dec (req->int1);
849 break;
850#endif
851
765 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 852 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
766 if (req->result > 0) 853 if (req->result > 0)
767 SvIV_set (sv_result, 0); 854 SvIV_set (sv_result, 0);
768 /* FALLTHROUGH */ 855 /* FALLTHROUGH */
769 856
… …
820 grp->sv2 = 0; 907 grp->sv2 = 0;
821 908
822 eio_grp_cancel (grp); 909 eio_grp_cancel (grp);
823} 910}
824 911
825static void ecb_cold 912ecb_cold
913static void
826create_respipe (void) 914create_respipe (void)
827{ 915{
828 if (s_epipe_renew (&respipe)) 916 if (s_epipe_renew (&respipe))
829 croak ("IO::AIO: unable to initialize result pipe"); 917 croak ("IO::AIO: unable to initialize result pipe");
830} 918}
… …
864 952
865 poll_wait (); 953 poll_wait ();
866 } 954 }
867} 955}
868 956
869static void ecb_cold 957ecb_cold
958static void
870reinit (void) 959reinit (void)
871{ 960{
872 create_respipe (); 961 create_respipe ();
873 962
874 if (eio_init (want_poll, done_poll) < 0) 963 if (eio_init (want_poll, done_poll) < 0)
… …
882{ 971{
883 SvGETMAGIC (cb_sv); 972 SvGETMAGIC (cb_sv);
884 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 973 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
885} 974}
886 975
976ecb_noinline
887static aio_req ecb_noinline 977static aio_req ecb_noinline
888dreq (SV *callback) 978dreq (SV *callback)
889{ 979{
890 SV *cb_cv; 980 SV *cb_cv;
891 aio_req req; 981 aio_req req;
… …
913 SPAGAIN; \ 1003 SPAGAIN; \
914 \ 1004 \
915 if (GIMME_V != G_VOID) \ 1005 if (GIMME_V != G_VOID) \
916 XPUSHs (req_sv (req, aio_req_stash)); 1006 XPUSHs (req_sv (req, aio_req_stash));
917 1007
1008/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
918ecb_inline void 1009ecb_inline
1010void
919req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr) 1011req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
920{ 1012{
921 if (expect_false (SvROK (path))) 1013 if (expect_false (SvROK (path)))
922 { 1014 {
923 SV *rv = SvRV (path); 1015 SV *rv = SvRV (path);
924 SV *wdob; 1016 SV *wdob;
… …
949 1041
950 *pathsv = newSVsv (path); 1042 *pathsv = newSVsv (path);
951 *ptr = SvPVbyte_nolen (*pathsv); 1043 *ptr = SvPVbyte_nolen (*pathsv);
952} 1044}
953 1045
954static void ecb_noinline 1046ecb_noinline
1047static void
955req_set_path1 (aio_req req, SV *path) 1048req_set_path1 (aio_req req, SV *path)
956{ 1049{
957 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1); 1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
958} 1051}
959 1052
960static void ecb_noinline 1053ecb_noinline
1054static void
961req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path) 1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
962{ 1056{
963 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path; 1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
964 1058
965 switch (SvTYPE (rv)) 1059 switch (SvTYPE (rv))
… …
1034 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) 1128 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1035 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) 1129 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1036 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) 1130 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1037 1131
1038 /* the second block will be 0 when missing */ 1132 /* the second block will be 0 when missing */
1133 const_iv (O_ACCMODE)
1134
1039 const_iv (O_RDONLY) 1135 const_iv (O_RDONLY)
1040 const_iv (O_WRONLY) 1136 const_iv (O_WRONLY)
1041 const_iv (O_RDWR) 1137 const_iv (O_RDWR)
1042 const_iv (O_CREAT) 1138 const_iv (O_CREAT)
1043 const_iv (O_TRUNC) 1139 const_iv (O_TRUNC)
… …
1103 const_iv (MAP_GROWSDOWN) 1199 const_iv (MAP_GROWSDOWN)
1104 const_iv (MAP_32BIT) 1200 const_iv (MAP_32BIT)
1105 const_iv (MAP_HUGETLB) 1201 const_iv (MAP_HUGETLB)
1106 const_iv (MAP_STACK) 1202 const_iv (MAP_STACK)
1107 1203
1204 const_iv (MREMAP_MAYMOVE)
1205 const_iv (MREMAP_FIXED)
1206
1207 const_iv (MSG_CMSG_CLOEXEC)
1208 const_iv (SOCK_CLOEXEC)
1209
1108 const_iv (F_DUPFD_CLOEXEC) 1210 const_iv (F_DUPFD_CLOEXEC)
1211
1212 const_iv (F_ADD_SEALS)
1213 const_iv (F_GET_SEALS)
1214 const_iv (F_SEAL_SEAL)
1215 const_iv (F_SEAL_SHRINK)
1216 const_iv (F_SEAL_GROW)
1217 const_iv (F_SEAL_WRITE)
1109 1218
1110 const_iv (F_OFD_GETLK) 1219 const_iv (F_OFD_GETLK)
1111 const_iv (F_OFD_SETLK) 1220 const_iv (F_OFD_SETLK)
1112 const_iv (F_OFD_GETLKW) 1221 const_iv (F_OFD_GETLKW)
1113 1222
… …
1190 1299
1191 const_iv (EFD_CLOEXEC) 1300 const_iv (EFD_CLOEXEC)
1192 const_iv (EFD_NONBLOCK) 1301 const_iv (EFD_NONBLOCK)
1193 const_iv (EFD_SEMAPHORE) 1302 const_iv (EFD_SEMAPHORE)
1194 1303
1304 const_iv (MFD_CLOEXEC)
1305 const_iv (MFD_ALLOW_SEALING)
1306 const_iv (MFD_HUGETLB)
1307
1195 const_iv (CLOCK_REALTIME) 1308 const_iv (CLOCK_REALTIME)
1196 const_iv (CLOCK_MONOTONIC) 1309 const_iv (CLOCK_MONOTONIC)
1197 const_iv (CLOCK_BOOTTIME) 1310 const_iv (CLOCK_BOOTTIME)
1198 const_iv (CLOCK_REALTIME_ALARM) 1311 const_iv (CLOCK_REALTIME_ALARM)
1199 const_iv (CLOCK_BOOTTIME_ALARM) 1312 const_iv (CLOCK_BOOTTIME_ALARM)
… …
1202 const_iv (TFD_CLOEXEC) 1315 const_iv (TFD_CLOEXEC)
1203 1316
1204 const_iv (TFD_TIMER_ABSTIME) 1317 const_iv (TFD_TIMER_ABSTIME)
1205 const_iv (TFD_TIMER_CANCEL_ON_SET) 1318 const_iv (TFD_TIMER_CANCEL_ON_SET)
1206 1319
1320 const_iv (STATX_TYPE)
1321 const_iv (STATX_MODE)
1322 const_iv (STATX_NLINK)
1323 const_iv (STATX_UID)
1324 const_iv (STATX_GID)
1325 const_iv (STATX_ATIME)
1326 const_iv (STATX_MTIME)
1327 const_iv (STATX_CTIME)
1328 const_iv (STATX_INO)
1329 const_iv (STATX_SIZE)
1330 const_iv (STATX_BLOCKS)
1331 const_iv (STATX_BASIC_STATS)
1332 const_iv (STATX_ALL)
1333 const_iv (STATX_BTIME)
1334 const_iv (STATX_ATTR_COMPRESSED)
1335 const_iv (STATX_ATTR_IMMUTABLE)
1336 const_iv (STATX_ATTR_APPEND)
1337 const_iv (STATX_ATTR_NODUMP)
1338 const_iv (STATX_ATTR_ENCRYPTED)
1339 const_iv (STATX_ATTR_AUTOMOUNT)
1340
1341 const_iv (AT_FDCWD)
1342 const_iv (AT_SYMLINK_NOFOLLOW)
1343 const_iv (AT_EACCESS)
1344 const_iv (AT_REMOVEDIR)
1345 const_iv (AT_SYMLINK_FOLLOW)
1346 const_iv (AT_NO_AUTOMOUNT)
1347 const_iv (AT_EMPTY_PATH)
1348 const_iv (AT_STATX_SYNC_TYPE)
1349 const_iv (AT_STATX_AS_STAT)
1350 const_iv (AT_STATX_FORCE_SYNC)
1351 const_iv (AT_STATX_DONT_SYNC)
1352 const_iv (AT_RECURSIVE)
1353
1354 const_iv (OPEN_TREE_CLONE)
1355
1356 const_iv (FSOPEN_CLOEXEC)
1357
1358 const_iv (FSPICK_CLOEXEC)
1359 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1360 const_iv (FSPICK_NO_AUTOMOUNT)
1361 const_iv (FSPICK_EMPTY_PATH)
1362
1363 const_iv (MOVE_MOUNT_F_SYMLINKS)
1364 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1365 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1366 const_iv (MOVE_MOUNT_T_SYMLINKS)
1367 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1368 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1369
1370 /* waitid */
1371 const_iv (P_PID)
1372 const_iv (P_PIDFD)
1373 const_iv (P_PGID)
1374 const_iv (P_ALL)
1375
1207 /* these are libeio constants, and are independent of gendef0 */ 1376 /* these are libeio constants, and are independent of gendef0 */
1208 const_eio (SEEK_SET) 1377 const_eio (SEEK_SET)
1209 const_eio (SEEK_CUR) 1378 const_eio (SEEK_CUR)
1210 const_eio (SEEK_END) 1379 const_eio (SEEK_END)
1211 1380
1212 const_eio (MCL_FUTURE) 1381 const_eio (MCL_FUTURE)
1213 const_eio (MCL_CURRENT) 1382 const_eio (MCL_CURRENT)
1383 const_eio (MCL_ONFAULT)
1214 1384
1215 const_eio (MS_ASYNC) 1385 const_eio (MS_ASYNC)
1216 const_eio (MS_INVALIDATE) 1386 const_eio (MS_INVALIDATE)
1217 const_eio (MS_SYNC) 1387 const_eio (MS_SYNC)
1218 1388
… …
1257 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) 1427 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1258 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); 1428 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1259 1429
1260 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1430 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1261 1431
1432 /* allocate dummy pipe fd for aio_close */
1433 {
1434 int pipefd [2];
1435
1436 if (
1437#ifdef _WIN32
1438 _pipe (pipefd, 1, _O_BINARY) < 0
1439#else
1440 pipe (pipefd) < 0
1441 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1442#endif
1443 || close (pipefd [1]) < 0
1444 )
1445 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1446
1447 close_fd = pipefd [0];
1448 }
1449
1262 reinit (); 1450 reinit ();
1263} 1451}
1264 1452
1265void 1453void
1266reinit () 1454reinit ()
… …
1388 1576
1389void 1577void
1390aio_close (SV *fh, SV *callback = &PL_sv_undef) 1578aio_close (SV *fh, SV *callback = &PL_sv_undef)
1391 PPCODE: 1579 PPCODE:
1392{ 1580{
1393 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1394 int fd = s_fileno_croak (fh, 0); 1581 int fd = s_fileno_croak (fh, 0);
1395 dREQ; 1582 dREQ;
1583#if 0
1584 /* partially duplicate logic in s_fileno */
1585 SvGETMAGIC (fh);
1396 1586
1397 if (expect_false (close_fd < 0)) 1587 if (SvROK (fh))
1588 {
1589 fh = SvRV (fh);
1590 SvGETMAGIC (fh);
1591 }
1592
1593 if (SvTYPE (fh) == SVt_PVGV)
1398 { 1594 {
1399 int pipefd [2]; 1595 /* perl filehandle */
1596 PerlIOUnix_refcnt_inc (fd);
1597 do_close ((GV *)fh, 1);
1400 1598
1401 if ( 1599 req->type = EIO_CLOSE;
1402#ifdef _WIN32 1600 req->int1 = fd;
1403 _pipe (pipefd, 1, _O_BINARY) < 0 1601 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1404#else
1405 pipe (pipefd) < 0
1406 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1407#endif
1408 || close (pipefd [1]) < 0
1409 )
1410 abort (); /*D*/
1411
1412 close_fd = pipefd [0];
1413 } 1602 }
1414 1603 else
1604#endif
1605 {
1606 /* fd number */
1415 req->type = EIO_DUP2; 1607 req->type = EIO_DUP2;
1416 req->int1 = close_fd; 1608 req->int1 = close_fd;
1417 req->sv2 = newSVsv (fh); 1609 req->sv2 = newSVsv (fh);
1418 req->int2 = fd; 1610 req->int2 = fd;
1611 }
1419 1612
1420 REQ_SEND; 1613 REQ_SEND;
1421} 1614}
1422 1615
1423void 1616void
… …
1594 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1787 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1595 1788
1596 REQ_SEND; 1789 REQ_SEND;
1597} 1790}
1598 1791
1792void
1793st_xtime ()
1794 ALIAS:
1795 st_atime = 0x01
1796 st_mtime = 0x02
1797 st_ctime = 0x04
1798 st_btime = 0x08
1799 st_xtime = 0x0f
1800 PPCODE:
1801 EXTEND (SP, 4);
1802 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1803 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1804 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1805 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1806
1807void
1808st_xtimensec ()
1809 ALIAS:
1810 st_atimensec = 0x01
1811 st_mtimensec = 0x02
1812 st_ctimensec = 0x04
1813 st_btimensec = 0x08
1814 st_xtimensec = 0x0f
1815 st_btimesec = 0x10
1816 st_gen = 0x20
1817 PPCODE:
1818 EXTEND (SP, 4);
1819 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1820 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1821 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1822 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1823 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1824 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1825
1599UV 1826UV
1600major (UV dev) 1827major (UV dev)
1601 ALIAS: 1828 ALIAS:
1602 minor = 1 1829 minor = 1
1603 CODE: 1830 CODE:
… …
1719 eio_wd wd2 = 0; 1946 eio_wd wd2 = 0;
1720 dREQ; 1947 dREQ;
1721 1948
1722 req->type = ix; 1949 req->type = ix;
1723 req_set_path1 (req, oldpath); 1950 req_set_path1 (req, oldpath);
1724 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1951 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1725 req->int3 = (long)wd2; 1952 req->int3 = (long)wd2;
1726 1953
1727 REQ_SEND; 1954 REQ_SEND;
1728} 1955}
1729 1956
… …
1734 eio_wd wd2 = 0; 1961 eio_wd wd2 = 0;
1735 dREQ; 1962 dREQ;
1736 1963
1737 req->type = EIO_RENAME; 1964 req->type = EIO_RENAME;
1738 req_set_path1 (req, oldpath); 1965 req_set_path1 (req, oldpath);
1739 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1966 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1740 req->int2 = flags; 1967 req->int2 = flags;
1741 req->int3 = (long)wd2; 1968 req->int3 = (long)wd2;
1742 1969
1743 REQ_SEND; 1970 REQ_SEND;
1744} 1971}
… …
2057void 2284void
2058munmap (SV *scalar) 2285munmap (SV *scalar)
2059 CODE: 2286 CODE:
2060 sv_clear_foreign (scalar); 2287 sv_clear_foreign (scalar);
2061 2288
2289SV *
2290mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2291 CODE:
2292{
2293 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2294 void *new;
2295
2296 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2297 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2298
2299 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2300
2301 RETVAL = &PL_sv_no;
2302
2303 if (new != (void *)-1)
2304 {
2305 RETVAL = new == (void *)mg->mg_ptr
2306 ? newSVpvn ("0 but true", 10)
2307 : &PL_sv_yes;
2308
2309 mg->mg_ptr = (char *)new;
2310 mg->mg_obj = (SV *)new_length;
2311
2312 SvPVX (scalar) = mg->mg_ptr;
2313 SvCUR_set (scalar, new_length);
2314 }
2315}
2316 OUTPUT:
2317 RETVAL
2318
2062int 2319int
2063madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) 2320madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2064 ALIAS: 2321 ALIAS:
2065 mprotect = 1 2322 mprotect = 1
2066 CODE: 2323 CODE:
2067{ 2324{
2068 STRLEN svlen; 2325 STRLEN svlen;
… …
2089} 2346}
2090 OUTPUT: 2347 OUTPUT:
2091 RETVAL 2348 RETVAL
2092 2349
2093int 2350int
2094munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2351munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2095 CODE: 2352 CODE:
2096{ 2353{
2097 STRLEN svlen; 2354 STRLEN svlen;
2098 void *addr = SvPVbyte (scalar, svlen); 2355 void *addr = SvPVbyte (scalar, svlen);
2099 size_t len = SvUV (length); 2356 size_t len = SvUV (length);
… …
2114#else 2371#else
2115 RETVAL = EIO_ENOSYS (); 2372 RETVAL = EIO_ENOSYS ();
2116#endif 2373#endif
2117} 2374}
2118 OUTPUT: 2375 OUTPUT:
2376 RETVAL
2377
2378int
2379mlockall (int flags)
2380 PROTOTYPE: $;
2381 CODE:
2382 RETVAL = eio_mlockall_sync (flags);
2383 OUTPUT:
2119 RETVAL 2384 RETVAL
2120 2385
2121int 2386int
2122munlockall () 2387munlockall ()
2123 CODE: 2388 CODE:
… …
2128#endif 2393#endif
2129 OUTPUT: 2394 OUTPUT:
2130 RETVAL 2395 RETVAL
2131 2396
2132int 2397int
2398statx (SV8 *pathname, int flags, UV mask)
2399 CODE:
2400{
2401 /* undocumented, and might go away, and anyway, should use eio_statx */
2402 SV *wdsv = 0;
2403 SV *pathsv = 0;
2404 eio_wd wd = EIO_CWD;
2405 void *ptr;
2406 int res;
2407
2408 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2409 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2410
2411 SvREFCNT_dec (pathsv);
2412 SvREFCNT_dec (wdsv);
2413}
2414 OUTPUT:
2415 RETVAL
2416
2417U32
2418stx_mode ()
2419 PROTOTYPE:
2420 CODE:
2421#if HAVE_STATX
2422 RETVAL = stx.stx_mode;
2423#else
2424 XSRETURN_UNDEF;
2425#endif
2426 OUTPUT:
2427 RETVAL
2428
2429#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2430#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2431#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2432#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2433#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2434#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2435#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2436#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2437#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2438#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2439#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2440#define STATX_OFFSET_size statx_offsetof (stx_size)
2441#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2442#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2443#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2444#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2445#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2446#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2447
2448U32
2449stx_mask ()
2450 PROTOTYPE:
2451 ALIAS:
2452 stx_mask = STATX_OFFSET_mask
2453 stx_blksize = STATX_OFFSET_blksize
2454 stx_nlink = STATX_OFFSET_nlink
2455 stx_uid = STATX_OFFSET_uid
2456 stx_gid = STATX_OFFSET_gid
2457 stx_rdev_major = STATX_OFFSET_rdev_major
2458 stx_rdev_minor = STATX_OFFSET_rdev_minor
2459 stx_dev_major = STATX_OFFSET_dev_major
2460 stx_dev_minor = STATX_OFFSET_dev_minor
2461 CODE:
2462#if HAVE_STATX
2463 RETVAL = *(__u32 *)((char *)&stx + ix);
2464#else
2465 XSRETURN_UNDEF;
2466#endif
2467 OUTPUT:
2468 RETVAL
2469
2470VAL64
2471stx_attributes ()
2472 PROTOTYPE:
2473 ALIAS:
2474 stx_attributes = STATX_OFFSET_attributes
2475 stx_ino = STATX_OFFSET_ino
2476 stx_size = STATX_OFFSET_size
2477 stx_blocks = STATX_OFFSET_blocks
2478 stx_attributes_mask = STATX_OFFSET_attributes_mask
2479 CODE:
2480#if HAVE_STATX
2481 RETVAL = *(__u64 *)((char *)&stx + ix);
2482#else
2483 XSRETURN_UNDEF;
2484#endif
2485 OUTPUT:
2486 RETVAL
2487
2488NV
2489stx_atime ()
2490 PROTOTYPE:
2491 ALIAS:
2492 stx_atime = STATX_OFFSET_atime
2493 stx_btime = STATX_OFFSET_btime
2494 stx_ctime = STATX_OFFSET_ctime
2495 stx_mtime = STATX_OFFSET_mtime
2496 CODE:
2497#if HAVE_STATX
2498 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2499 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2500#else
2501 XSRETURN_UNDEF;
2502#endif
2503 OUTPUT:
2504 RETVAL
2505
2506VAL64
2507stx_atimesec ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_atimesec = STATX_OFFSET_atime
2511 stx_btimesec = STATX_OFFSET_btime
2512 stx_ctimesec = STATX_OFFSET_ctime
2513 stx_mtimesec = STATX_OFFSET_mtime
2514 CODE:
2515#if HAVE_STATX
2516 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2517 RETVAL = ts->tv_sec;
2518#else
2519 XSRETURN_UNDEF;
2520#endif
2521 OUTPUT:
2522 RETVAL
2523
2524U32
2525stx_atimensec ()
2526 PROTOTYPE:
2527 ALIAS:
2528 stx_atimensec = STATX_OFFSET_atime
2529 stx_btimensec = STATX_OFFSET_btime
2530 stx_ctimensec = STATX_OFFSET_ctime
2531 stx_mtimensec = STATX_OFFSET_mtime
2532 CODE:
2533#if HAVE_STATX
2534 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2535 RETVAL = ts->tv_nsec;
2536#else
2537 RETVAL = 0;
2538#endif
2539 OUTPUT:
2540 RETVAL
2541
2542void
2543accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2544 PPCODE:
2545{
2546 SV *retval;
2547#if HAVE_ACCEPT4
2548 socklen_t salen_ = salen ? salen + 1 : 0;
2549
2550 if (salen)
2551 {
2552 sv_upgrade (sockaddr, SVt_PV);
2553 sv_grow (sockaddr, salen_);
2554 }
2555
2556 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2557
2558 retval = newmortalFH (res, O_RDWR);
2559
2560 if (res >= 0 && salen > 0)
2561 {
2562 if (salen_ > salen + 1)
2563 salen_ = salen + 1;
2564
2565 SvPOK_only (sockaddr);
2566 SvCUR_set (sockaddr, salen_);
2567 }
2568#else
2569 errno = ENOSYS;
2570 retval = &PL_sv_undef;
2571#endif
2572 XPUSHs (retval);
2573}
2574
2575ssize_t
2133splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) 2576splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2134 CODE: 2577 CODE:
2135{ 2578{
2136#if HAVE_LINUX_SPLICE 2579#if HAVE_LINUX_SPLICE
2137 loff_t off_in_, off_out_; 2580 loff_t off_in_, off_out_;
… …
2145#endif 2588#endif
2146} 2589}
2147 OUTPUT: 2590 OUTPUT:
2148 RETVAL 2591 RETVAL
2149 2592
2150int 2593ssize_t
2151tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags) 2594tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2152 CODE: 2595 CODE:
2153#if HAVE_LINUX_SPLICE 2596#if HAVE_LINUX_SPLICE
2154 RETVAL = tee (rfh, wfh, length, flags); 2597 RETVAL = tee (rfh, wfh, length, flags);
2155#else 2598#else
… …
2198 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2641 PUSHs (newmortalFH (fd[1], O_WRONLY));
2199 } 2642 }
2200} 2643}
2201 2644
2202void 2645void
2646pidfd_open (int pid, unsigned int flags = 0)
2647 PPCODE:
2648{
2649 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2650 int fd = syscall (SYS_pidfd_open, pid, flags);
2651 XPUSHs (newmortalFH (fd, O_RDWR));
2652}
2653
2654int
2655pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2656 PPCODE:
2657{
2658 int res;
2659 siginfo_t si = { 0 };
2660
2661 if (SvOK (siginfo))
2662 {
2663 HV *hv;
2664 SV **svp;
2665
2666 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2667 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2668
2669 hv = (HV *)SvRV (siginfo);
2670
2671 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2672 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2673 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2674 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2675 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2676 }
2677
2678 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2679 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2680
2681 XPUSHs (sv_2mortal (newSViv (res)));
2682}
2683
2684void
2685pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2689 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2203eventfd (unsigned int initval = 0, int flags = 0) 2694eventfd (unsigned int initval = 0, int flags = 0)
2204 PPCODE: 2695 PPCODE:
2205{ 2696{
2206 int fd; 2697 int fd;
2207#if HAVE_EVENTFD 2698#if HAVE_EVENTFD
… …
2230void 2721void
2231timerfd_settime (SV *fh, int flags, NV interval, NV value) 2722timerfd_settime (SV *fh, int flags, NV interval, NV value)
2232 PPCODE: 2723 PPCODE:
2233{ 2724{
2234 int fd = s_fileno_croak (fh, 0); 2725 int fd = s_fileno_croak (fh, 0);
2726#if HAVE_TIMERFD
2235 int res; 2727 int res;
2236 struct itimerspec its, ots; 2728 struct itimerspec its, ots;
2237 2729
2238 ts_set (&its.it_interval, interval); 2730 ts_set (&its.it_interval, interval);
2239 ts_set (&its.it_value , value); 2731 ts_set (&its.it_value , value);
2240#if HAVE_TIMERFD
2241 res = timerfd_settime (fd, flags, &its, &ots); 2732 res = timerfd_settime (fd, flags, &its, &ots);
2242#else
2243 res = (errno = ENOSYS, -1);
2244#endif
2245 2733
2246 if (!res) 2734 if (!res)
2247 { 2735 {
2248 EXTEND (SP, 2); 2736 EXTEND (SP, 2);
2249 PUSHs (newSVnv (ts_get (&ots.it_interval))); 2737 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2250 PUSHs (newSVnv (ts_get (&ots.it_value))); 2738 PUSHs (newSVnv (ts_get (&ots.it_value)));
2251 } 2739 }
2740#else
2741 errno = ENOSYS;
2742#endif
2252} 2743}
2253 2744
2254void 2745void
2255timerfd_gettime (SV *fh) 2746timerfd_gettime (SV *fh)
2256 PPCODE: 2747 PPCODE:
2257{ 2748{
2258 int fd = s_fileno_croak (fh, 0); 2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2259 int res; 2751 int res;
2260 struct itimerspec ots; 2752 struct itimerspec ots;
2261#if HAVE_TIMERFD
2262 res = timerfd_gettime (fd, &ots); 2753 res = timerfd_gettime (fd, &ots);
2263#else
2264 res = (errno = ENOSYS, -1);
2265#endif
2266 2754
2267 if (!res) 2755 if (!res)
2268 { 2756 {
2269 EXTEND (SP, 2); 2757 EXTEND (SP, 2);
2270 PUSHs (newSVnv (ts_get (&ots.it_interval))); 2758 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2271 PUSHs (newSVnv (ts_get (&ots.it_value))); 2759 PUSHs (newSVnv (ts_get (&ots.it_value)));
2272 } 2760 }
2761#else
2762 errno = ENOSYS;
2763#endif
2764}
2765
2766void
2767memfd_create (SV8 *pathname, int flags = 0)
2768 PPCODE:
2769{
2770 int fd;
2771#if HAVE_MEMFD_CREATE
2772 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2773#else
2774 fd = (errno = ENOSYS, -1);
2775#endif
2776
2777 XPUSHs (newmortalFH (fd, O_RDWR));
2273} 2778}
2274 2779
2275UV 2780UV
2276get_fdlimit () 2781get_fdlimit ()
2277 CODE: 2782 CODE:
… …
2312 if (0 == setrlimit (RLIMIT_NOFILE, &rl)) 2817 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2313 XSRETURN_YES; 2818 XSRETURN_YES;
2314 2819
2315 if (errno == EPERM) 2820 if (errno == EPERM)
2316 { 2821 {
2317 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */ 2822 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2318 /* our limit overflows a system-wide limit */ 2823 /* our limit overflows a system-wide limit */
2319 /* try an adaptive algorithm, but do not lower the hardlimit */ 2824 /* try an adaptive algorithm, but do not lower the hardlimit */
2320 rl.rlim_max = 0; 2825 rl.rlim_max = 0;
2321 for (bit = 0x40000000U; bit; bit >>= 1) 2826 for (bit = 0x40000000U; bit; bit >>= 1)
2322 { 2827 {
2323 rl.rlim_max |= bit; 2828 rl.rlim_max |= bit;
2324 rl.rlim_cur = rl.rlim_max; 2829 rl.rlim_cur = rl.rlim_max;
2325 2830
2326 /* nevr decrease the hard limit */ 2831 /* never decrease the hard limit */
2327 if (rl.rlim_max < orig_rlim_max) 2832 if (rl.rlim_max < orig_rlim_max)
2328 break; 2833 break;
2329 2834
2330 if (0 != setrlimit (RLIMIT_NOFILE, &rl)) 2835 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2331 rl.rlim_max &= ~bit; /* too high, remove bit again */ 2836 rl.rlim_max &= ~bit; /* too high, remove bit again */

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