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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC vs.
Revision 1.293 by root, Tue Jul 27 18:46:06 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"
8 9
9#include "schmorp.h" 10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
10 13
11#include <stddef.h> 14#include <stddef.h>
12#include <stdlib.h> 15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
15#include <sys/stat.h> 19#include <sys/stat.h>
16#include <limits.h> 20#include <limits.h>
17#include <fcntl.h> 21#include <fcntl.h>
18#include <sched.h> 22#include <sched.h>
19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23 23
24/* the incompetent fool that created musl keeps __linux__, refuses 24/* the incompetent fool that created musl keeps __linux__, refuses
25 * 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
26 * 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
27 * for you. 27 * for you.
75 #undef fchmod 75 #undef fchmod
76 #undef dup 76 #undef dup
77 #undef dup2 77 #undef dup2
78 #undef abort 78 #undef abort
79 #undef pipe 79 #undef pipe
80 #undef utime
80 81
81 #define EIO_STRUCT_STAT struct _stati64 82 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64 83 #define EIO_STRUCT_STATI64
83 84
84#else 85#else
85 86
86 #include <sys/time.h> 87 #include <sys/time.h>
87 #include <sys/select.h> 88 #include <sys/select.h>
89 #include <sys/wait.h>
88 #include <unistd.h> 90 #include <unistd.h>
89 #include <utime.h> 91 #include <utime.h>
90 #include <signal.h> 92 #include <signal.h>
91 93
92 #define EIO_STRUCT_STAT Stat_t 94 #define EIO_STRUCT_STAT Stat_t
104#define expect_false(expr) expect ((expr) != 0, 0) 106#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1) 107#define expect_true(expr) expect ((expr) != 0, 1)
106 108
107/*****************************************************************************/ 109/*****************************************************************************/
108 110
109#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
157
158#include "schmorp.h"
110 159
111#if HAVE_EVENTFD 160#if HAVE_EVENTFD
112# include <sys/eventfd.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
113#endif 166#endif
114 167
115#if HAVE_RLIMITS 168#if HAVE_RLIMITS
116 #include <sys/time.h> 169 #include <sys/time.h>
117 #include <sys/resource.h> 170 #include <sys/resource.h>
155# else 208# else
156# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
157# endif 210# endif
158#endif 211#endif
159 212
160/* defines all sorts of constants to 0 unless they are already defined */
161/* also provides const_iv_ and const_niv_ macros for them */
162#include "def0.h"
163
164#ifndef makedev 213#ifndef makedev
165# define makedev(maj,min) (((maj) << 8) | (min)) 214# define makedev(maj,min) (((maj) << 8) | (min))
166#endif 215#endif
167#ifndef major 216#ifndef major
168# define major(dev) ((dev) >> 8) 217# define major(dev) ((dev) >> 8)
169#endif 218#endif
170#ifndef minor 219#ifndef minor
171# define minor(dev) ((dev) & 0xff) 220# define minor(dev) ((dev) & 0xff)
172#endif 221#endif
173 222
223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
224#ifdef __sun
225# undef PAGESIZE
226#endif
227
174#if PAGESIZE <= 0 228#if PAGESIZE <= 0
175# define PAGESIZE sysconf (_SC_PAGESIZE) 229# define PAGESIZE sysconf (_SC_PAGESIZE)
176#endif 230#endif
177 231
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
178/*****************************************************************************/ 243/*****************************************************************************/
179 244
180#if !_POSIX_MAPPED_FILES 245#if !_POSIX_MAPPED_FILES
181# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS () 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
182# define munmap(addr,length) EIO_ENOSYS () 247# define munmap(addr,length) EIO_ENOSYS ()
183#endif 248#endif
184 249
185#if !_POSIX_MEMORY_PROTECTION 250#if !_POSIX_MEMORY_PROTECTION
186# define mprotect(addr,len,prot) EIO_ENOSYS () 251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
187#endif 256#endif
188 257
189#define FOREIGN_MAGIC PERL_MAGIC_ext 258#define FOREIGN_MAGIC PERL_MAGIC_ext
190 259
191static int ecb_cold 260static int ecb_cold
236}; 305};
237 306
238/*****************************************************************************/ 307/*****************************************************************************/
239 308
240/* helper: set scalar to foreign ptr with custom free */ 309/* helper: set scalar to foreign ptr with custom free */
310ecb_noinline
241static void 311static void
242sv_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)
243{ 313{
244 sv_force_normal (sv); 314 sv_force_normal (sv);
245 315
263{ 333{
264 /* todo: iterate over magic and only free ours, but of course */ 334 /* todo: iterate over magic and only free ours, but of course */
265 /* the perl5porters will call that (correct) behaviour buggy */ 335 /* the perl5porters will call that (correct) behaviour buggy */
266 sv_unmagic (sv, FOREIGN_MAGIC); 336 sv_unmagic (sv, FOREIGN_MAGIC);
267} 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"
268 344
269/*****************************************************************************/ 345/*****************************************************************************/
270 346
271static void 347static void
272fiemap (eio_req *req) 348fiemap (eio_req *req)
280 int count = req->int3; 356 int count = req->int3;
281 357
282 req->flags |= EIO_FLAG_PTR1_FREE; 358 req->flags |= EIO_FLAG_PTR1_FREE;
283 359
284 /* 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, */
285 /* increase in 3.5kb steps */ 361 /* increase in fixed steps */
286 if (count < 0) 362 if (count < 0)
287 count = 8; 363 count = 8;
288 364
289 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); 365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
290 errno = ENOMEM; 366 errno = ENOMEM;
343 419
344 for (count = 0; count < incmap->fm_mapped_extents; ++count) 420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
345 { 421 {
346 struct fiemap_extent *e = incmap->fm_extents + count; 422 struct fiemap_extent *e = incmap->fm_extents + count;
347 423
424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
348 if (e->fe_logical + e->fe_length >= end_offset) 426 if (e->fe_logical >= end_offset)
349 goto done; 427 goto done;
350
351 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
352 428
353 if (e->fe_flags & FIEMAP_EXTENT_LAST) 429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
354 goto done; 430 goto done;
355 431
356 } 432 }
363 errno = ENOSYS; 439 errno = ENOSYS;
364#endif 440#endif
365} 441}
366 442
367/*****************************************************************************/ 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
368 455
369enum { 456enum {
370 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
371}; 458};
372 459
396 /* read any signals sent by the worker threads */ 483 /* read any signals sent by the worker threads */
397 s_epipe_drain (&respipe); 484 s_epipe_drain (&respipe);
398} 485}
399 486
400/* must be called at most once */ 487/* must be called at most once */
488ecb_noinline
401static SV * 489static SV *
402req_sv (aio_req req, HV *stash) 490req_sv (aio_req req, HV *stash)
403{ 491{
404 if (!req->self) 492 if (!req->self)
405 { 493 {
414newSVaio_wd (aio_wd wd) 502newSVaio_wd (aio_wd wd)
415{ 503{
416 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);
417} 505}
418 506
507ecb_noinline
419static aio_req 508static aio_req
420SvAIO_REQ (SV *sv) 509SvAIO_REQ (SV *sv)
421{ 510{
422 MAGIC *mg; 511 MAGIC *mg;
423 512
486 FREETMPS; 575 FREETMPS;
487 LEAVE; 576 LEAVE;
488 } 577 }
489} 578}
490 579
580ecb_noinline
491static void 581static void
492req_submit (eio_req *req) 582req_submit (eio_req *req)
493{ 583{
494 eio_submit (req); 584 eio_submit (req);
495 585
756 } 846 }
757 else 847 else
758 PUSHs (sv_result); 848 PUSHs (sv_result);
759 break; 849 break;
760 850
851#if 0
852 case EIO_CLOSE:
853 PerlIOUnix_refcnt_dec (req->int1);
854 break;
855#endif
856
761 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 */
762 if (req->result > 0) 858 if (req->result > 0)
763 SvIV_set (sv_result, 0); 859 SvIV_set (sv_result, 0);
764 /* FALLTHROUGH */ 860 /* FALLTHROUGH */
765 861
816 grp->sv2 = 0; 912 grp->sv2 = 0;
817 913
818 eio_grp_cancel (grp); 914 eio_grp_cancel (grp);
819} 915}
820 916
821static void ecb_cold 917ecb_cold
918static void
822create_respipe (void) 919create_respipe (void)
823{ 920{
824 if (s_epipe_renew (&respipe)) 921 if (s_epipe_renew (&respipe))
825 croak ("IO::AIO: unable to initialize result pipe"); 922 croak ("IO::AIO: unable to initialize result pipe");
826} 923}
860 957
861 poll_wait (); 958 poll_wait ();
862 } 959 }
863} 960}
864 961
865static void ecb_cold 962ecb_cold
963static void
866reinit (void) 964reinit (void)
867{ 965{
868 create_respipe (); 966 create_respipe ();
869 967
870 if (eio_init (want_poll, done_poll) < 0) 968 if (eio_init (want_poll, done_poll) < 0)
878{ 976{
879 SvGETMAGIC (cb_sv); 977 SvGETMAGIC (cb_sv);
880 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
881} 979}
882 980
981ecb_noinline
883static aio_req ecb_noinline 982static aio_req ecb_noinline
884dreq (SV *callback) 983dreq (SV *callback)
885{ 984{
886 SV *cb_cv; 985 SV *cb_cv;
887 aio_req req; 986 aio_req req;
909 SPAGAIN; \ 1008 SPAGAIN; \
910 \ 1009 \
911 if (GIMME_V != G_VOID) \ 1010 if (GIMME_V != G_VOID) \
912 XPUSHs (req_sv (req, aio_req_stash)); 1011 XPUSHs (req_sv (req, aio_req_stash));
913 1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
914ecb_inline void 1014ecb_inline
1015void
915req_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)
916{ 1017{
917 if (expect_false (SvROK (path))) 1018 if (expect_false (SvROK (path)))
918 { 1019 {
919 SV *rv = SvRV (path); 1020 SV *rv = SvRV (path);
920 SV *wdob; 1021 SV *wdob;
945 1046
946 *pathsv = newSVsv (path); 1047 *pathsv = newSVsv (path);
947 *ptr = SvPVbyte_nolen (*pathsv); 1048 *ptr = SvPVbyte_nolen (*pathsv);
948} 1049}
949 1050
950static void ecb_noinline 1051ecb_noinline
1052static void
951req_set_path1 (aio_req req, SV *path) 1053req_set_path1 (aio_req req, SV *path)
952{ 1054{
953 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);
954} 1056}
955 1057
956static void ecb_noinline 1058ecb_noinline
1059static void
957req_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)
958{ 1061{
959 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;
960 1063
961 switch (SvTYPE (rv)) 1064 switch (SvTYPE (rv))
973 req_set_path1 (req, fh_or_path); 1076 req_set_path1 (req, fh_or_path);
974 break; 1077 break;
975 } 1078 }
976} 1079}
977 1080
1081/*****************************************************************************/
1082
1083static void
1084ts_set (struct timespec *ts, NV value)
1085{
1086 ts->tv_sec = value;
1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1088}
1089
1090static NV
1091ts_get (const struct timespec *ts)
1092{
1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
1094}
1095
1096/*****************************************************************************/
1097
978XS(boot_IO__AIO) ecb_cold; 1098XS(boot_IO__AIO) ecb_cold;
979 1099
980MODULE = IO::AIO PACKAGE = IO::AIO 1100MODULE = IO::AIO PACKAGE = IO::AIO
981 1101
982PROTOTYPES: ENABLE 1102PROTOTYPES: ENABLE
1013 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) 1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1014 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) 1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1015 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) 1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1016 1136
1017 /* the second block will be 0 when missing */ 1137 /* the second block will be 0 when missing */
1138 const_iv (O_ACCMODE)
1139
1018 const_iv (O_RDONLY) 1140 const_iv (O_RDONLY)
1019 const_iv (O_WRONLY) 1141 const_iv (O_WRONLY)
1020 const_iv (O_RDWR) 1142 const_iv (O_RDWR)
1021 const_iv (O_CREAT) 1143 const_iv (O_CREAT)
1022 const_iv (O_TRUNC) 1144 const_iv (O_TRUNC)
1081 const_iv (MAP_NONBLOCK) 1203 const_iv (MAP_NONBLOCK)
1082 const_iv (MAP_GROWSDOWN) 1204 const_iv (MAP_GROWSDOWN)
1083 const_iv (MAP_32BIT) 1205 const_iv (MAP_32BIT)
1084 const_iv (MAP_HUGETLB) 1206 const_iv (MAP_HUGETLB)
1085 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)
1212
1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
1215
1216 const_iv (MSG_CMSG_CLOEXEC)
1217 const_iv (SOCK_CLOEXEC)
1086 1218
1087 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)
1088 1227
1089 const_iv (F_OFD_GETLK) 1228 const_iv (F_OFD_GETLK)
1090 const_iv (F_OFD_SETLK) 1229 const_iv (F_OFD_SETLK)
1091 const_iv (F_OFD_GETLKW) 1230 const_iv (F_OFD_GETLKW)
1092 1231
1169 1308
1170 const_iv (EFD_CLOEXEC) 1309 const_iv (EFD_CLOEXEC)
1171 const_iv (EFD_NONBLOCK) 1310 const_iv (EFD_NONBLOCK)
1172 const_iv (EFD_SEMAPHORE) 1311 const_iv (EFD_SEMAPHORE)
1173 1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316
1317 const_iv (CLOCK_REALTIME)
1318 const_iv (CLOCK_MONOTONIC)
1319 const_iv (CLOCK_BOOTTIME)
1320 const_iv (CLOCK_REALTIME_ALARM)
1321 const_iv (CLOCK_BOOTTIME_ALARM)
1322
1323 const_iv (TFD_NONBLOCK)
1324 const_iv (TFD_CLOEXEC)
1325
1326 const_iv (TFD_TIMER_ABSTIME)
1327 const_iv (TFD_TIMER_CANCEL_ON_SET)
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
1174 /* these are libeio constants, and are independent of gendef0 */ 1404 /* these are libeio constants, and are independent of gendef0 */
1175 const_eio (SEEK_SET) 1405 const_eio (SEEK_SET)
1176 const_eio (SEEK_CUR) 1406 const_eio (SEEK_CUR)
1177 const_eio (SEEK_END) 1407 const_eio (SEEK_END)
1178 1408
1179 const_eio (MCL_FUTURE) 1409 const_eio (MCL_FUTURE)
1180 const_eio (MCL_CURRENT) 1410 const_eio (MCL_CURRENT)
1411 const_eio (MCL_ONFAULT)
1181 1412
1182 const_eio (MS_ASYNC) 1413 const_eio (MS_ASYNC)
1183 const_eio (MS_INVALIDATE) 1414 const_eio (MS_INVALIDATE)
1184 const_eio (MS_SYNC) 1415 const_eio (MS_SYNC)
1185 1416
1224 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--)
1225 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); 1456 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1226 1457
1227 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1458 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1228 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
1229 reinit (); 1478 reinit ();
1230} 1479}
1231 1480
1232void 1481void
1233reinit () 1482reinit ()
1355 1604
1356void 1605void
1357aio_close (SV *fh, SV *callback = &PL_sv_undef) 1606aio_close (SV *fh, SV *callback = &PL_sv_undef)
1358 PPCODE: 1607 PPCODE:
1359{ 1608{
1360 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1361 int fd = s_fileno_croak (fh, 0); 1609 int fd = s_fileno_croak (fh, 0);
1362 dREQ; 1610 dREQ;
1611#if 0
1612 /* partially duplicate logic in s_fileno */
1613 SvGETMAGIC (fh);
1363 1614
1364 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)
1365 { 1622 {
1366 int pipefd [2]; 1623 /* perl filehandle */
1624 PerlIOUnix_refcnt_inc (fd);
1625 do_close ((GV *)fh, 1);
1367 1626
1368 if ( 1627 req->type = EIO_CLOSE;
1369#ifdef _WIN32 1628 req->int1 = fd;
1370 _pipe (pipefd, 1, _O_BINARY) < 0 1629 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1371#else
1372 pipe (pipefd) < 0
1373 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1374#endif
1375 || close (pipefd [1]) < 0
1376 )
1377 abort (); /*D*/
1378
1379 close_fd = pipefd [0];
1380 } 1630 }
1381 1631 else
1632#endif
1633 {
1634 /* fd number */
1382 req->type = EIO_DUP2; 1635 req->type = EIO_DUP2;
1383 req->int1 = close_fd; 1636 req->int1 = close_fd;
1384 req->sv2 = newSVsv (fh); 1637 req->sv2 = newSVsv (fh);
1385 req->int2 = fd; 1638 req->int2 = fd;
1639 }
1386 1640
1387 REQ_SEND; 1641 REQ_SEND;
1388} 1642}
1389 1643
1390void 1644void
1561 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);
1562 1816
1563 REQ_SEND; 1817 REQ_SEND;
1564} 1818}
1565 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
1566UV 1854UV
1567major (UV dev) 1855major (UV dev)
1568 ALIAS: 1856 ALIAS:
1569 minor = 1 1857 minor = 1
1570 CODE: 1858 CODE:
1686 eio_wd wd2 = 0; 1974 eio_wd wd2 = 0;
1687 dREQ; 1975 dREQ;
1688 1976
1689 req->type = ix; 1977 req->type = ix;
1690 req_set_path1 (req, oldpath); 1978 req_set_path1 (req, oldpath);
1691 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1979 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1692 req->int3 = (long)wd2; 1980 req->int3 = (long)wd2;
1693 1981
1694 REQ_SEND; 1982 REQ_SEND;
1695} 1983}
1696 1984
1701 eio_wd wd2 = 0; 1989 eio_wd wd2 = 0;
1702 dREQ; 1990 dREQ;
1703 1991
1704 req->type = EIO_RENAME; 1992 req->type = EIO_RENAME;
1705 req_set_path1 (req, oldpath); 1993 req_set_path1 (req, oldpath);
1706 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1994 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1707 req->int2 = flags; 1995 req->int2 = flags;
1708 req->int3 = (long)wd2; 1996 req->int3 = (long)wd2;
1709 1997
1710 REQ_SEND; 1998 REQ_SEND;
1711} 1999}
2024void 2312void
2025munmap (SV *scalar) 2313munmap (SV *scalar)
2026 CODE: 2314 CODE:
2027 sv_clear_foreign (scalar); 2315 sv_clear_foreign (scalar);
2028 2316
2317SV *
2318mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2319 CODE:
2320{
2321 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2322 void *new;
2323
2324 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2325 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2326
2327 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2328
2329 RETVAL = &PL_sv_no;
2330
2331 if (new != (void *)-1)
2332 {
2333 RETVAL = new == (void *)mg->mg_ptr
2334 ? newSVpvn ("0 but true", 10)
2335 : &PL_sv_yes;
2336
2337 mg->mg_ptr = (char *)new;
2338 mg->mg_obj = (SV *)new_length;
2339
2340 SvPVX (scalar) = mg->mg_ptr;
2341 SvCUR_set (scalar, new_length);
2342 }
2343}
2344 OUTPUT:
2345 RETVAL
2346
2029int 2347int
2030madvise (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)
2031 ALIAS: 2349 ALIAS:
2032 mprotect = 1 2350 mprotect = 1
2033 CODE: 2351 CODE:
2034{ 2352{
2035 STRLEN svlen; 2353 STRLEN svlen;
2056} 2374}
2057 OUTPUT: 2375 OUTPUT:
2058 RETVAL 2376 RETVAL
2059 2377
2060int 2378int
2061munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2379munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2062 CODE: 2380 CODE:
2063{ 2381{
2064 STRLEN svlen; 2382 STRLEN svlen;
2065 void *addr = SvPVbyte (scalar, svlen); 2383 void *addr = SvPVbyte (scalar, svlen);
2066 size_t len = SvUV (length); 2384 size_t len = SvUV (length);
2081#else 2399#else
2082 RETVAL = EIO_ENOSYS (); 2400 RETVAL = EIO_ENOSYS ();
2083#endif 2401#endif
2084} 2402}
2085 OUTPUT: 2403 OUTPUT:
2404 RETVAL
2405
2406int
2407mlockall (int flags)
2408 PROTOTYPE: $;
2409 CODE:
2410 RETVAL = eio_mlockall_sync (flags);
2411 OUTPUT:
2086 RETVAL 2412 RETVAL
2087 2413
2088int 2414int
2089munlockall () 2415munlockall ()
2090 CODE: 2416 CODE:
2095#endif 2421#endif
2096 OUTPUT: 2422 OUTPUT:
2097 RETVAL 2423 RETVAL
2098 2424
2099int 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
2100splice (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)
2101 CODE: 2605 CODE:
2102{ 2606{
2103#if HAVE_LINUX_SPLICE 2607#if HAVE_LINUX_SPLICE
2104 loff_t off_in_, off_out_; 2608 loff_t off_in_, off_out_;
2112#endif 2616#endif
2113} 2617}
2114 OUTPUT: 2618 OUTPUT:
2115 RETVAL 2619 RETVAL
2116 2620
2117int 2621ssize_t
2118tee (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)
2119 CODE: 2623 CODE:
2120#if HAVE_LINUX_SPLICE 2624#if HAVE_LINUX_SPLICE
2121 RETVAL = tee (rfh, wfh, length, flags); 2625 RETVAL = tee (rfh, wfh, length, flags);
2122#else 2626#else
2165 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2669 PUSHs (newmortalFH (fd[1], O_WRONLY));
2166 } 2670 }
2167} 2671}
2168 2672
2169void 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 int res;
2687#if HAVE_SIGINFO_T
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
2170eventfd (unsigned int initval = 0, int flags = 0) 2726eventfd (unsigned int initval = 0, int flags = 0)
2171 PPCODE: 2727 PPCODE:
2172{ 2728{
2173 int fd; 2729 int fd;
2174#if HAVE_EVENTFD 2730#if HAVE_EVENTFD
2175 fd = eventfd (initval, flags); 2731 fd = eventfd (initval, flags);
2732#else
2733 fd = (errno = ENOSYS, -1);
2734#endif
2735
2736 XPUSHs (newmortalFH (fd, O_RDWR));
2737}
2738
2739void
2740timerfd_create (int clockid, int flags = 0)
2741 PPCODE:
2742{
2743 int fd;
2744#if HAVE_TIMERFD
2745 fd = timerfd_create (clockid, flags);
2746#else
2747 fd = (errno = ENOSYS, -1);
2748#endif
2749
2750 XPUSHs (newmortalFH (fd, O_RDWR));
2751}
2752
2753void
2754timerfd_settime (SV *fh, int flags, NV interval, NV value)
2755 PPCODE:
2756{
2757 int fd = s_fileno_croak (fh, 0);
2758#if HAVE_TIMERFD
2759 int res;
2760 struct itimerspec its, ots;
2761
2762 ts_set (&its.it_interval, interval);
2763 ts_set (&its.it_value , value);
2764 res = timerfd_settime (fd, flags, &its, &ots);
2765
2766 if (!res)
2767 {
2768 EXTEND (SP, 2);
2769 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2770 PUSHs (newSVnv (ts_get (&ots.it_value)));
2771 }
2772#else
2773 errno = ENOSYS;
2774#endif
2775}
2776
2777void
2778timerfd_gettime (SV *fh)
2779 PPCODE:
2780{
2781 int fd = s_fileno_croak (fh, 0);
2782#if HAVE_TIMERFD
2783 int res;
2784 struct itimerspec ots;
2785 res = timerfd_gettime (fd, &ots);
2786
2787 if (!res)
2788 {
2789 EXTEND (SP, 2);
2790 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2791 PUSHs (newSVnv (ts_get (&ots.it_value)));
2792 }
2793#else
2794 errno = ENOSYS;
2795#endif
2796}
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);
2176#else 2805#else
2177 fd = (errno = ENOSYS, -1); 2806 fd = (errno = ENOSYS, -1);
2178#endif 2807#endif
2179 2808
2180 XPUSHs (newmortalFH (fd, O_RDWR)); 2809 XPUSHs (newmortalFH (fd, O_RDWR));
2220 if (0 == setrlimit (RLIMIT_NOFILE, &rl)) 2849 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2221 XSRETURN_YES; 2850 XSRETURN_YES;
2222 2851
2223 if (errno == EPERM) 2852 if (errno == EPERM)
2224 { 2853 {
2225 /* 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 */
2226 /* our limit overflows a system-wide limit */ 2855 /* our limit overflows a system-wide limit */
2227 /* try an adaptive algorithm, but do not lower the hardlimit */ 2856 /* try an adaptive algorithm, but do not lower the hardlimit */
2228 rl.rlim_max = 0; 2857 rl.rlim_max = 0;
2229 for (bit = 0x40000000U; bit; bit >>= 1) 2858 for (bit = 0x40000000U; bit; bit >>= 1)
2230 { 2859 {
2231 rl.rlim_max |= bit; 2860 rl.rlim_max |= bit;
2232 rl.rlim_cur = rl.rlim_max; 2861 rl.rlim_cur = rl.rlim_max;
2233 2862
2234 /* nevr decrease the hard limit */ 2863 /* never decrease the hard limit */
2235 if (rl.rlim_max < orig_rlim_max) 2864 if (rl.rlim_max < orig_rlim_max)
2236 break; 2865 break;
2237 2866
2238 if (0 != setrlimit (RLIMIT_NOFILE, &rl)) 2867 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2239 rl.rlim_max &= ~bit; /* too high, remove bit again */ 2868 rl.rlim_max &= ~bit; /* too high, remove bit again */

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