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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.257 by root, Tue Jul 17 23:20:09 2018 UTC vs.
Revision 1.292 by root, Tue Jul 27 07:59:33 2021 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/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
239#else
240# define syscall(nr,...) (errno = ENOSYS, -1)
241#endif
242
182/*****************************************************************************/ 243/*****************************************************************************/
183 244
184#if !_POSIX_MAPPED_FILES 245#if !_POSIX_MAPPED_FILES
185# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS () 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
186# define munmap(addr,length) EIO_ENOSYS () 247# define munmap(addr,length) EIO_ENOSYS ()
187#endif 248#endif
188 249
189#if !_POSIX_MEMORY_PROTECTION 250#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS () 251# define mprotect(addr,len,prot) EIO_ENOSYS ()
… …
244}; 305};
245 306
246/*****************************************************************************/ 307/*****************************************************************************/
247 308
248/* helper: set scalar to foreign ptr with custom free */ 309/* helper: set scalar to foreign ptr with custom free */
310ecb_noinline
249static void 311static void
250sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length) 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
251{ 313{
252 sv_force_normal (sv); 314 sv_force_normal (sv);
253 315
… …
271{ 333{
272 /* todo: iterate over magic and only free ours, but of course */ 334 /* todo: iterate over magic and only free ours, but of course */
273 /* the perl5porters will call that (correct) behaviour buggy */ 335 /* the perl5porters will call that (correct) behaviour buggy */
274 sv_unmagic (sv, FOREIGN_MAGIC); 336 sv_unmagic (sv, FOREIGN_MAGIC);
275} 337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
276 344
277/*****************************************************************************/ 345/*****************************************************************************/
278 346
279static void 347static void
280fiemap (eio_req *req) 348fiemap (eio_req *req)
… …
288 int count = req->int3; 356 int count = req->int3;
289 357
290 req->flags |= EIO_FLAG_PTR1_FREE; 358 req->flags |= EIO_FLAG_PTR1_FREE;
291 359
292 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */ 360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
293 /* increase in 3.5kb steps */ 361 /* increase in fixed steps */
294 if (count < 0) 362 if (count < 0)
295 count = 8; 363 count = 8;
296 364
297 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); 365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
298 errno = ENOMEM; 366 errno = ENOMEM;
… …
351 419
352 for (count = 0; count < incmap->fm_mapped_extents; ++count) 420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
353 { 421 {
354 struct fiemap_extent *e = incmap->fm_extents + count; 422 struct fiemap_extent *e = incmap->fm_extents + count;
355 423
424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
356 if (e->fe_logical + e->fe_length >= end_offset) 426 if (e->fe_logical >= end_offset)
357 goto done; 427 goto done;
358
359 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
360 428
361 if (e->fe_flags & FIEMAP_EXTENT_LAST) 429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
362 goto done; 430 goto done;
363 431
364 } 432 }
… …
371 errno = ENOSYS; 439 errno = ENOSYS;
372#endif 440#endif
373} 441}
374 442
375/*****************************************************************************/ 443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454#endif
376 455
377enum { 456enum {
378 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
379}; 458};
380 459
… …
404 /* read any signals sent by the worker threads */ 483 /* read any signals sent by the worker threads */
405 s_epipe_drain (&respipe); 484 s_epipe_drain (&respipe);
406} 485}
407 486
408/* must be called at most once */ 487/* must be called at most once */
488ecb_noinline
409static SV * 489static SV *
410req_sv (aio_req req, HV *stash) 490req_sv (aio_req req, HV *stash)
411{ 491{
412 if (!req->self) 492 if (!req->self)
413 { 493 {
… …
422newSVaio_wd (aio_wd wd) 502newSVaio_wd (aio_wd wd)
423{ 503{
424 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash); 504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
425} 505}
426 506
507ecb_noinline
427static aio_req 508static aio_req
428SvAIO_REQ (SV *sv) 509SvAIO_REQ (SV *sv)
429{ 510{
430 MAGIC *mg; 511 MAGIC *mg;
431 512
… …
494 FREETMPS; 575 FREETMPS;
495 LEAVE; 576 LEAVE;
496 } 577 }
497} 578}
498 579
580ecb_noinline
499static void 581static void
500req_submit (eio_req *req) 582req_submit (eio_req *req)
501{ 583{
502 eio_submit (req); 584 eio_submit (req);
503 585
… …
764 } 846 }
765 else 847 else
766 PUSHs (sv_result); 848 PUSHs (sv_result);
767 break; 849 break;
768 850
851#if 0
852 case EIO_CLOSE:
853 PerlIOUnix_refcnt_dec (req->int1);
854 break;
855#endif
856
769 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
770 if (req->result > 0) 858 if (req->result > 0)
771 SvIV_set (sv_result, 0); 859 SvIV_set (sv_result, 0);
772 /* FALLTHROUGH */ 860 /* FALLTHROUGH */
773 861
… …
824 grp->sv2 = 0; 912 grp->sv2 = 0;
825 913
826 eio_grp_cancel (grp); 914 eio_grp_cancel (grp);
827} 915}
828 916
829static void ecb_cold 917ecb_cold
918static void
830create_respipe (void) 919create_respipe (void)
831{ 920{
832 if (s_epipe_renew (&respipe)) 921 if (s_epipe_renew (&respipe))
833 croak ("IO::AIO: unable to initialize result pipe"); 922 croak ("IO::AIO: unable to initialize result pipe");
834} 923}
… …
868 957
869 poll_wait (); 958 poll_wait ();
870 } 959 }
871} 960}
872 961
873static void ecb_cold 962ecb_cold
963static void
874reinit (void) 964reinit (void)
875{ 965{
876 create_respipe (); 966 create_respipe ();
877 967
878 if (eio_init (want_poll, done_poll) < 0) 968 if (eio_init (want_poll, done_poll) < 0)
… …
886{ 976{
887 SvGETMAGIC (cb_sv); 977 SvGETMAGIC (cb_sv);
888 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
889} 979}
890 980
981ecb_noinline
891static aio_req ecb_noinline 982static aio_req ecb_noinline
892dreq (SV *callback) 983dreq (SV *callback)
893{ 984{
894 SV *cb_cv; 985 SV *cb_cv;
895 aio_req req; 986 aio_req req;
… …
917 SPAGAIN; \ 1008 SPAGAIN; \
918 \ 1009 \
919 if (GIMME_V != G_VOID) \ 1010 if (GIMME_V != G_VOID) \
920 XPUSHs (req_sv (req, aio_req_stash)); 1011 XPUSHs (req_sv (req, aio_req_stash));
921 1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
922ecb_inline void 1014ecb_inline
1015void
923req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr) 1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
924{ 1017{
925 if (expect_false (SvROK (path))) 1018 if (expect_false (SvROK (path)))
926 { 1019 {
927 SV *rv = SvRV (path); 1020 SV *rv = SvRV (path);
928 SV *wdob; 1021 SV *wdob;
… …
953 1046
954 *pathsv = newSVsv (path); 1047 *pathsv = newSVsv (path);
955 *ptr = SvPVbyte_nolen (*pathsv); 1048 *ptr = SvPVbyte_nolen (*pathsv);
956} 1049}
957 1050
958static void ecb_noinline 1051ecb_noinline
1052static void
959req_set_path1 (aio_req req, SV *path) 1053req_set_path1 (aio_req req, SV *path)
960{ 1054{
961 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1); 1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
962} 1056}
963 1057
964static void ecb_noinline 1058ecb_noinline
1059static void
965req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path) 1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
966{ 1061{
967 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path; 1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
968 1063
969 switch (SvTYPE (rv)) 1064 switch (SvTYPE (rv))
… …
1038 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) 1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1039 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) 1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1040 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) 1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1041 1136
1042 /* the second block will be 0 when missing */ 1137 /* the second block will be 0 when missing */
1138 const_iv (O_ACCMODE)
1139
1043 const_iv (O_RDONLY) 1140 const_iv (O_RDONLY)
1044 const_iv (O_WRONLY) 1141 const_iv (O_WRONLY)
1045 const_iv (O_RDWR) 1142 const_iv (O_RDWR)
1046 const_iv (O_CREAT) 1143 const_iv (O_CREAT)
1047 const_iv (O_TRUNC) 1144 const_iv (O_TRUNC)
… …
1106 const_iv (MAP_NONBLOCK) 1203 const_iv (MAP_NONBLOCK)
1107 const_iv (MAP_GROWSDOWN) 1204 const_iv (MAP_GROWSDOWN)
1108 const_iv (MAP_32BIT) 1205 const_iv (MAP_32BIT)
1109 const_iv (MAP_HUGETLB) 1206 const_iv (MAP_HUGETLB)
1110 const_iv (MAP_STACK) 1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
1111 1212
1112 const_iv (MREMAP_MAYMOVE) 1213 const_iv (MREMAP_MAYMOVE)
1113 const_iv (MREMAP_FIXED) 1214 const_iv (MREMAP_FIXED)
1114 1215
1216 const_iv (MSG_CMSG_CLOEXEC)
1217 const_iv (SOCK_CLOEXEC)
1218
1115 const_iv (F_DUPFD_CLOEXEC) 1219 const_iv (F_DUPFD_CLOEXEC)
1220
1221 const_iv (F_ADD_SEALS)
1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
1116 1227
1117 const_iv (F_OFD_GETLK) 1228 const_iv (F_OFD_GETLK)
1118 const_iv (F_OFD_SETLK) 1229 const_iv (F_OFD_SETLK)
1119 const_iv (F_OFD_GETLKW) 1230 const_iv (F_OFD_GETLKW)
1120 1231
… …
1197 1308
1198 const_iv (EFD_CLOEXEC) 1309 const_iv (EFD_CLOEXEC)
1199 const_iv (EFD_NONBLOCK) 1310 const_iv (EFD_NONBLOCK)
1200 const_iv (EFD_SEMAPHORE) 1311 const_iv (EFD_SEMAPHORE)
1201 1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316
1202 const_iv (CLOCK_REALTIME) 1317 const_iv (CLOCK_REALTIME)
1203 const_iv (CLOCK_MONOTONIC) 1318 const_iv (CLOCK_MONOTONIC)
1204 const_iv (CLOCK_BOOTTIME) 1319 const_iv (CLOCK_BOOTTIME)
1205 const_iv (CLOCK_REALTIME_ALARM) 1320 const_iv (CLOCK_REALTIME_ALARM)
1206 const_iv (CLOCK_BOOTTIME_ALARM) 1321 const_iv (CLOCK_BOOTTIME_ALARM)
… …
1209 const_iv (TFD_CLOEXEC) 1324 const_iv (TFD_CLOEXEC)
1210 1325
1211 const_iv (TFD_TIMER_ABSTIME) 1326 const_iv (TFD_TIMER_ABSTIME)
1212 const_iv (TFD_TIMER_CANCEL_ON_SET) 1327 const_iv (TFD_TIMER_CANCEL_ON_SET)
1213 1328
1329 const_iv (STATX_TYPE)
1330 const_iv (STATX_MODE)
1331 const_iv (STATX_NLINK)
1332 const_iv (STATX_UID)
1333 const_iv (STATX_GID)
1334 const_iv (STATX_ATIME)
1335 const_iv (STATX_MTIME)
1336 const_iv (STATX_CTIME)
1337 const_iv (STATX_INO)
1338 const_iv (STATX_SIZE)
1339 const_iv (STATX_BLOCKS)
1340 const_iv (STATX_BASIC_STATS)
1341 const_iv (STATX_ALL)
1342 const_iv (STATX_BTIME)
1343 const_iv (STATX_ATTR_COMPRESSED)
1344 const_iv (STATX_ATTR_IMMUTABLE)
1345 const_iv (STATX_ATTR_APPEND)
1346 const_iv (STATX_ATTR_NODUMP)
1347 const_iv (STATX_ATTR_ENCRYPTED)
1348 const_iv (STATX_ATTR_AUTOMOUNT)
1349
1350 const_iv (AT_FDCWD)
1351 const_iv (AT_SYMLINK_NOFOLLOW)
1352 const_iv (AT_EACCESS)
1353 const_iv (AT_REMOVEDIR)
1354 const_iv (AT_SYMLINK_FOLLOW)
1355 const_iv (AT_NO_AUTOMOUNT)
1356 const_iv (AT_EMPTY_PATH)
1357 const_iv (AT_STATX_SYNC_TYPE)
1358 const_iv (AT_STATX_AS_STAT)
1359 const_iv (AT_STATX_FORCE_SYNC)
1360 const_iv (AT_STATX_DONT_SYNC)
1361 const_iv (AT_RECURSIVE)
1362
1363 const_iv (OPEN_TREE_CLONE)
1364
1365 const_iv (FSOPEN_CLOEXEC)
1366
1367 const_iv (FSPICK_CLOEXEC)
1368 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1369 const_iv (FSPICK_NO_AUTOMOUNT)
1370 const_iv (FSPICK_EMPTY_PATH)
1371
1372 const_iv (MOVE_MOUNT_F_SYMLINKS)
1373 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1374 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1375 const_iv (MOVE_MOUNT_T_SYMLINKS)
1376 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1377 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1378
1379 /* waitid */
1380 const_iv (P_PID)
1381 const_iv (P_PIDFD)
1382 const_iv (P_PGID)
1383 const_iv (P_ALL)
1384
1385 const_iv (FSCONFIG_SET_FLAG)
1386 const_iv (FSCONFIG_SET_STRING)
1387 const_iv (FSCONFIG_SET_BINARY)
1388 const_iv (FSCONFIG_SET_PATH)
1389 const_iv (FSCONFIG_SET_PATH_EMPTY)
1390 const_iv (FSCONFIG_SET_FD)
1391 const_iv (FSCONFIG_CMD_CREATE)
1392 const_iv (FSCONFIG_CMD_RECONFIGURE)
1393
1394 const_iv (MOUNT_ATTR_RDONLY)
1395 const_iv (MOUNT_ATTR_NOSUID)
1396 const_iv (MOUNT_ATTR_NODEV)
1397 const_iv (MOUNT_ATTR_NOEXEC)
1398 const_iv (MOUNT_ATTR__ATIME)
1399 const_iv (MOUNT_ATTR_RELATIME)
1400 const_iv (MOUNT_ATTR_NOATIME)
1401 const_iv (MOUNT_ATTR_STRICTATIME)
1402 const_iv (MOUNT_ATTR_NODIRATIME)
1403
1214 /* these are libeio constants, and are independent of gendef0 */ 1404 /* these are libeio constants, and are independent of gendef0 */
1215 const_eio (SEEK_SET) 1405 const_eio (SEEK_SET)
1216 const_eio (SEEK_CUR) 1406 const_eio (SEEK_CUR)
1217 const_eio (SEEK_END) 1407 const_eio (SEEK_END)
1218 1408
1219 const_eio (MCL_FUTURE) 1409 const_eio (MCL_FUTURE)
1220 const_eio (MCL_CURRENT) 1410 const_eio (MCL_CURRENT)
1411 const_eio (MCL_ONFAULT)
1221 1412
1222 const_eio (MS_ASYNC) 1413 const_eio (MS_ASYNC)
1223 const_eio (MS_INVALIDATE) 1414 const_eio (MS_INVALIDATE)
1224 const_eio (MS_SYNC) 1415 const_eio (MS_SYNC)
1225 1416
… …
1264 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) 1455 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1265 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); 1456 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1266 1457
1267 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1458 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1268 1459
1460 /* allocate dummy pipe fd for aio_close */
1461 {
1462 int pipefd [2];
1463
1464 if (
1465#ifdef _WIN32
1466 _pipe (pipefd, 1, _O_BINARY) < 0
1467#else
1468 pipe (pipefd) < 0
1469 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1470#endif
1471 || close (pipefd [1]) < 0
1472 )
1473 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1474
1475 close_fd = pipefd [0];
1476 }
1477
1269 reinit (); 1478 reinit ();
1270} 1479}
1271 1480
1272void 1481void
1273reinit () 1482reinit ()
… …
1395 1604
1396void 1605void
1397aio_close (SV *fh, SV *callback = &PL_sv_undef) 1606aio_close (SV *fh, SV *callback = &PL_sv_undef)
1398 PPCODE: 1607 PPCODE:
1399{ 1608{
1400 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1401 int fd = s_fileno_croak (fh, 0); 1609 int fd = s_fileno_croak (fh, 0);
1402 dREQ; 1610 dREQ;
1611#if 0
1612 /* partially duplicate logic in s_fileno */
1613 SvGETMAGIC (fh);
1403 1614
1404 if (expect_false (close_fd < 0)) 1615 if (SvROK (fh))
1616 {
1617 fh = SvRV (fh);
1618 SvGETMAGIC (fh);
1619 }
1620
1621 if (SvTYPE (fh) == SVt_PVGV)
1405 { 1622 {
1406 int pipefd [2]; 1623 /* perl filehandle */
1624 PerlIOUnix_refcnt_inc (fd);
1625 do_close ((GV *)fh, 1);
1407 1626
1408 if ( 1627 req->type = EIO_CLOSE;
1409#ifdef _WIN32 1628 req->int1 = fd;
1410 _pipe (pipefd, 1, _O_BINARY) < 0 1629 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1411#else
1412 pipe (pipefd) < 0
1413 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1414#endif
1415 || close (pipefd [1]) < 0
1416 )
1417 abort (); /*D*/
1418
1419 close_fd = pipefd [0];
1420 } 1630 }
1421 1631 else
1632#endif
1633 {
1634 /* fd number */
1422 req->type = EIO_DUP2; 1635 req->type = EIO_DUP2;
1423 req->int1 = close_fd; 1636 req->int1 = close_fd;
1424 req->sv2 = newSVsv (fh); 1637 req->sv2 = newSVsv (fh);
1425 req->int2 = fd; 1638 req->int2 = fd;
1639 }
1426 1640
1427 REQ_SEND; 1641 REQ_SEND;
1428} 1642}
1429 1643
1430void 1644void
… …
1601 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1815 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1602 1816
1603 REQ_SEND; 1817 REQ_SEND;
1604} 1818}
1605 1819
1820void
1821st_xtime ()
1822 ALIAS:
1823 st_atime = 0x01
1824 st_mtime = 0x02
1825 st_ctime = 0x04
1826 st_btime = 0x08
1827 st_xtime = 0x0f
1828 PPCODE:
1829 EXTEND (SP, 4);
1830 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1831 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1832 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1833 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1834
1835void
1836st_xtimensec ()
1837 ALIAS:
1838 st_atimensec = 0x01
1839 st_mtimensec = 0x02
1840 st_ctimensec = 0x04
1841 st_btimensec = 0x08
1842 st_xtimensec = 0x0f
1843 st_btimesec = 0x10
1844 st_gen = 0x20
1845 PPCODE:
1846 EXTEND (SP, 4);
1847 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1848 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1849 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1850 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1851 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1852 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1853
1606UV 1854UV
1607major (UV dev) 1855major (UV dev)
1608 ALIAS: 1856 ALIAS:
1609 minor = 1 1857 minor = 1
1610 CODE: 1858 CODE:
… …
1726 eio_wd wd2 = 0; 1974 eio_wd wd2 = 0;
1727 dREQ; 1975 dREQ;
1728 1976
1729 req->type = ix; 1977 req->type = ix;
1730 req_set_path1 (req, oldpath); 1978 req_set_path1 (req, oldpath);
1731 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1979 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1732 req->int3 = (long)wd2; 1980 req->int3 = (long)wd2;
1733 1981
1734 REQ_SEND; 1982 REQ_SEND;
1735} 1983}
1736 1984
… …
1741 eio_wd wd2 = 0; 1989 eio_wd wd2 = 0;
1742 dREQ; 1990 dREQ;
1743 1991
1744 req->type = EIO_RENAME; 1992 req->type = EIO_RENAME;
1745 req_set_path1 (req, oldpath); 1993 req_set_path1 (req, oldpath);
1746 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1994 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1747 req->int2 = flags; 1995 req->int2 = flags;
1748 req->int3 = (long)wd2; 1996 req->int3 = (long)wd2;
1749 1997
1750 REQ_SEND; 1998 REQ_SEND;
1751} 1999}
… …
2065munmap (SV *scalar) 2313munmap (SV *scalar)
2066 CODE: 2314 CODE:
2067 sv_clear_foreign (scalar); 2315 sv_clear_foreign (scalar);
2068 2316
2069SV * 2317SV *
2070mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0) 2318mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2071 CODE: 2319 CODE:
2072{ 2320{
2073 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl); 2321 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2074 void *new; 2322 void *new;
2075 2323
… …
2095} 2343}
2096 OUTPUT: 2344 OUTPUT:
2097 RETVAL 2345 RETVAL
2098 2346
2099int 2347int
2100madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) 2348madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2101 ALIAS: 2349 ALIAS:
2102 mprotect = 1 2350 mprotect = 1
2103 CODE: 2351 CODE:
2104{ 2352{
2105 STRLEN svlen; 2353 STRLEN svlen;
… …
2126} 2374}
2127 OUTPUT: 2375 OUTPUT:
2128 RETVAL 2376 RETVAL
2129 2377
2130int 2378int
2131munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2379munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2132 CODE: 2380 CODE:
2133{ 2381{
2134 STRLEN svlen; 2382 STRLEN svlen;
2135 void *addr = SvPVbyte (scalar, svlen); 2383 void *addr = SvPVbyte (scalar, svlen);
2136 size_t len = SvUV (length); 2384 size_t len = SvUV (length);
… …
2151#else 2399#else
2152 RETVAL = EIO_ENOSYS (); 2400 RETVAL = EIO_ENOSYS ();
2153#endif 2401#endif
2154} 2402}
2155 OUTPUT: 2403 OUTPUT:
2404 RETVAL
2405
2406int
2407mlockall (int flags)
2408 PROTOTYPE: $;
2409 CODE:
2410 RETVAL = eio_mlockall_sync (flags);
2411 OUTPUT:
2156 RETVAL 2412 RETVAL
2157 2413
2158int 2414int
2159munlockall () 2415munlockall ()
2160 CODE: 2416 CODE:
… …
2165#endif 2421#endif
2166 OUTPUT: 2422 OUTPUT:
2167 RETVAL 2423 RETVAL
2168 2424
2169int 2425int
2426statx (SV8 *pathname, int flags, UV mask)
2427 CODE:
2428{
2429 /* undocumented, and might go away, and anyway, should use eio_statx */
2430 SV *wdsv = 0;
2431 SV *pathsv = 0;
2432 eio_wd wd = EIO_CWD;
2433 void *ptr;
2434 int res;
2435
2436 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2437 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2438
2439 SvREFCNT_dec (pathsv);
2440 SvREFCNT_dec (wdsv);
2441}
2442 OUTPUT:
2443 RETVAL
2444
2445U32
2446stx_mode ()
2447 PROTOTYPE:
2448 CODE:
2449#if HAVE_STATX
2450 RETVAL = stx.stx_mode;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
2456
2457#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2458#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2459#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2460#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2461#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2462#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2463#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2464#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2465#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2466#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2467#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2468#define STATX_OFFSET_size statx_offsetof (stx_size)
2469#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2470#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2471#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2472#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2473#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2474#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2475
2476U32
2477stx_mask ()
2478 PROTOTYPE:
2479 ALIAS:
2480 stx_mask = STATX_OFFSET_mask
2481 stx_blksize = STATX_OFFSET_blksize
2482 stx_nlink = STATX_OFFSET_nlink
2483 stx_uid = STATX_OFFSET_uid
2484 stx_gid = STATX_OFFSET_gid
2485 stx_rdev_major = STATX_OFFSET_rdev_major
2486 stx_rdev_minor = STATX_OFFSET_rdev_minor
2487 stx_dev_major = STATX_OFFSET_dev_major
2488 stx_dev_minor = STATX_OFFSET_dev_minor
2489 CODE:
2490#if HAVE_STATX
2491 RETVAL = *(__u32 *)((char *)&stx + ix);
2492#else
2493 XSRETURN_UNDEF;
2494#endif
2495 OUTPUT:
2496 RETVAL
2497
2498VAL64
2499stx_attributes ()
2500 PROTOTYPE:
2501 ALIAS:
2502 stx_attributes = STATX_OFFSET_attributes
2503 stx_ino = STATX_OFFSET_ino
2504 stx_size = STATX_OFFSET_size
2505 stx_blocks = STATX_OFFSET_blocks
2506 stx_attributes_mask = STATX_OFFSET_attributes_mask
2507 CODE:
2508#if HAVE_STATX
2509 RETVAL = *(__u64 *)((char *)&stx + ix);
2510#else
2511 XSRETURN_UNDEF;
2512#endif
2513 OUTPUT:
2514 RETVAL
2515
2516NV
2517stx_atime ()
2518 PROTOTYPE:
2519 ALIAS:
2520 stx_atime = STATX_OFFSET_atime
2521 stx_btime = STATX_OFFSET_btime
2522 stx_ctime = STATX_OFFSET_ctime
2523 stx_mtime = STATX_OFFSET_mtime
2524 CODE:
2525#if HAVE_STATX
2526 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2527 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2528#else
2529 XSRETURN_UNDEF;
2530#endif
2531 OUTPUT:
2532 RETVAL
2533
2534VAL64
2535stx_atimesec ()
2536 PROTOTYPE:
2537 ALIAS:
2538 stx_atimesec = STATX_OFFSET_atime
2539 stx_btimesec = STATX_OFFSET_btime
2540 stx_ctimesec = STATX_OFFSET_ctime
2541 stx_mtimesec = STATX_OFFSET_mtime
2542 CODE:
2543#if HAVE_STATX
2544 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2545 RETVAL = ts->tv_sec;
2546#else
2547 XSRETURN_UNDEF;
2548#endif
2549 OUTPUT:
2550 RETVAL
2551
2552U32
2553stx_atimensec ()
2554 PROTOTYPE:
2555 ALIAS:
2556 stx_atimensec = STATX_OFFSET_atime
2557 stx_btimensec = STATX_OFFSET_btime
2558 stx_ctimensec = STATX_OFFSET_ctime
2559 stx_mtimensec = STATX_OFFSET_mtime
2560 CODE:
2561#if HAVE_STATX
2562 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2563 RETVAL = ts->tv_nsec;
2564#else
2565 RETVAL = 0;
2566#endif
2567 OUTPUT:
2568 RETVAL
2569
2570void
2571accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2572 PPCODE:
2573{
2574 SV *retval;
2575#if HAVE_ACCEPT4
2576 socklen_t salen_ = salen ? salen + 1 : 0;
2577
2578 if (salen)
2579 {
2580 sv_upgrade (sockaddr, SVt_PV);
2581 sv_grow (sockaddr, salen_);
2582 }
2583
2584 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2585
2586 retval = newmortalFH (res, O_RDWR);
2587
2588 if (res >= 0 && salen > 0)
2589 {
2590 if (salen_ > salen + 1)
2591 salen_ = salen + 1;
2592
2593 SvPOK_only (sockaddr);
2594 SvCUR_set (sockaddr, salen_);
2595 }
2596#else
2597 errno = ENOSYS;
2598 retval = &PL_sv_undef;
2599#endif
2600 XPUSHs (retval);
2601}
2602
2603ssize_t
2170splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) 2604splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2171 CODE: 2605 CODE:
2172{ 2606{
2173#if HAVE_LINUX_SPLICE 2607#if HAVE_LINUX_SPLICE
2174 loff_t off_in_, off_out_; 2608 loff_t off_in_, off_out_;
… …
2182#endif 2616#endif
2183} 2617}
2184 OUTPUT: 2618 OUTPUT:
2185 RETVAL 2619 RETVAL
2186 2620
2187int 2621ssize_t
2188tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags) 2622tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2189 CODE: 2623 CODE:
2190#if HAVE_LINUX_SPLICE 2624#if HAVE_LINUX_SPLICE
2191 RETVAL = tee (rfh, wfh, length, flags); 2625 RETVAL = tee (rfh, wfh, length, flags);
2192#else 2626#else
… …
2235 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2669 PUSHs (newmortalFH (fd[1], O_WRONLY));
2236 } 2670 }
2237} 2671}
2238 2672
2239void 2673void
2674pidfd_open (int pid, unsigned int flags = 0)
2675 PPCODE:
2676{
2677 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2678 int fd = syscall (SYS_pidfd_open, pid, flags);
2679 XPUSHs (newmortalFH (fd, O_RDWR));
2680}
2681
2682int
2683pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2684 PPCODE:
2685{
2686 #if HAVE_SIGINFO_T
2687 int res;
2688 siginfo_t si = { 0 };
2689
2690 if (SvOK (siginfo))
2691 {
2692 HV *hv;
2693 SV **svp;
2694
2695 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2696 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2697
2698 hv = (HV *)SvRV (siginfo);
2699
2700 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2701 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2702 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2705 }
2706
2707 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2708 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2709 #else
2710 res = (errno = ENOSYS, -1);
2711 #endif
2712
2713 XPUSHs (sv_2mortal (newSViv (res)));
2714}
2715
2716void
2717pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2718 PPCODE:
2719{
2720 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2721 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2722 XPUSHs (newmortalFH (fd, O_RDWR));
2723}
2724
2725void
2240eventfd (unsigned int initval = 0, int flags = 0) 2726eventfd (unsigned int initval = 0, int flags = 0)
2241 PPCODE: 2727 PPCODE:
2242{ 2728{
2243 int fd; 2729 int fd;
2244#if HAVE_EVENTFD 2730#if HAVE_EVENTFD
… …
2307#else 2793#else
2308 errno = ENOSYS; 2794 errno = ENOSYS;
2309#endif 2795#endif
2310} 2796}
2311 2797
2798void
2799memfd_create (SV8 *pathname, int flags = 0)
2800 PPCODE:
2801{
2802 int fd;
2803#if HAVE_MEMFD_CREATE
2804 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2805#else
2806 fd = (errno = ENOSYS, -1);
2807#endif
2808
2809 XPUSHs (newmortalFH (fd, O_RDWR));
2810}
2811
2312UV 2812UV
2313get_fdlimit () 2813get_fdlimit ()
2314 CODE: 2814 CODE:
2315#if HAVE_RLIMITS 2815#if HAVE_RLIMITS
2316 struct rlimit rl; 2816 struct rlimit rl;
… …
2349 if (0 == setrlimit (RLIMIT_NOFILE, &rl)) 2849 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2350 XSRETURN_YES; 2850 XSRETURN_YES;
2351 2851
2352 if (errno == EPERM) 2852 if (errno == EPERM)
2353 { 2853 {
2354 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */ 2854 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2355 /* our limit overflows a system-wide limit */ 2855 /* our limit overflows a system-wide limit */
2356 /* try an adaptive algorithm, but do not lower the hardlimit */ 2856 /* try an adaptive algorithm, but do not lower the hardlimit */
2357 rl.rlim_max = 0; 2857 rl.rlim_max = 0;
2358 for (bit = 0x40000000U; bit; bit >>= 1) 2858 for (bit = 0x40000000U; bit; bit >>= 1)
2359 { 2859 {
2360 rl.rlim_max |= bit; 2860 rl.rlim_max |= bit;
2361 rl.rlim_cur = rl.rlim_max; 2861 rl.rlim_cur = rl.rlim_max;
2362 2862
2363 /* nevr decrease the hard limit */ 2863 /* never decrease the hard limit */
2364 if (rl.rlim_max < orig_rlim_max) 2864 if (rl.rlim_max < orig_rlim_max)
2365 break; 2865 break;
2366 2866
2367 if (0 != setrlimit (RLIMIT_NOFILE, &rl)) 2867 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2368 rl.rlim_max &= ~bit; /* too high, remove bit again */ 2868 rl.rlim_max &= ~bit; /* too high, remove bit again */

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