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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.249 by root, Fri Jun 23 23:50:25 2017 UTC vs.
Revision 1.276 by root, Wed Apr 3 03:03:53 2019 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
… …
103 104
104#define expect_false(expr) expect ((expr) != 0, 0) 105#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1) 106#define expect_true(expr) expect ((expr) != 0, 1)
106 107
107/*****************************************************************************/ 108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
123# include <sys/uio.h>
124#endif
125
126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
108 171
109typedef SV SV8; /* byte-sv, used for argument-checking */ 172typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */ 173typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */ 174typedef int aio_wfd; /* write file descriptor */
112 175
… …
119 STRLEN stroffset; \ 182 STRLEN stroffset; \
120 SV *self; 183 SV *self;
121 184
122#define EIO_NO_WRAPPERS 1 185#define EIO_NO_WRAPPERS 1
123 186
124#include "libeio/config.h"
125#include "libeio/eio.h" 187#include "libeio/eio.h"
126 188
127static int req_invoke (eio_req *req); 189static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req) 190#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp); 191static void req_destroy (eio_req *grp);
… …
145# else 207# else
146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147# endif 209# endif
148#endif 210#endif
149 211
212#ifndef makedev
213# define makedev(maj,min) (((maj) << 8) | (min))
214#endif
215#ifndef major
216# define major(dev) ((dev) >> 8)
217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
221
222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
223#ifdef __sun
224# undef PAGESIZE
225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231/*****************************************************************************/
232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
266 return 0;
267}
268
269static MGVTBL mmap_vtbl = {
270 0, 0, 0, 0, mmap_free
271};
272
273static int ecb_cold
274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
275{
276 free (mg->mg_ptr);
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
288 return 0;
289}
290
291static MGVTBL sysfree_vtbl = {
292 0, 0, 0, 0, sysfree_free
293};
294
295/*****************************************************************************/
296
297/* helper: set scalar to foreign ptr with custom free */
298ecb_noinline
299static void
300sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
301{
302 sv_force_normal (sv);
303
304 /* we store the length in mg_obj, as namlen is I32 :/ */
305 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
306 ->mg_obj = (SV *)length;
307
308 SvUPGRADE (sv, SVt_PV); /* nop... */
309
310 if (SvLEN (sv))
311 Safefree (SvPVX (sv));
312
313 SvPVX (sv) = (char *)addr;
314 SvCUR_set (sv, length);
315 SvLEN_set (sv, 0);
316 SvPOK_only (sv);
317}
318
319static void
320sv_clear_foreign (SV *sv)
321{
322 /* todo: iterate over magic and only free ours, but of course */
323 /* the perl5porters will call that (correct) behaviour buggy */
324 sv_unmagic (sv, FOREIGN_MAGIC);
325}
326
327/*****************************************************************************/
328
150/* defines all sorts of constants to 0 unless they are already defined */ 329/* defines all sorts of constants to 0 unless they are already defined */
151/* also provides const_iv_ and const_niv_ macros for them */ 330/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h" 331#include "def0.h"
153
154#ifndef makedev
155# define makedev(maj,min) (((maj) << 8) | (min))
156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
163
164#if PAGESIZE <= 0
165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
167 332
168/*****************************************************************************/ 333/*****************************************************************************/
169 334
170static void 335static void
171fiemap (eio_req *req) 336fiemap (eio_req *req)
… …
263#endif 428#endif
264} 429}
265 430
266/*****************************************************************************/ 431/*****************************************************************************/
267 432
433static int close_fd; /* dummy fd to close fds via dup2 */
434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
442#endif
443
268enum { 444enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270}; 446};
271 447
272typedef eio_req *aio_req; 448typedef eio_req *aio_req;
… …
295 /* read any signals sent by the worker threads */ 471 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe); 472 s_epipe_drain (&respipe);
297} 473}
298 474
299/* must be called at most once */ 475/* must be called at most once */
476ecb_noinline
300static SV * 477static SV *
301req_sv (aio_req req, HV *stash) 478req_sv (aio_req req, HV *stash)
302{ 479{
303 if (!req->self) 480 if (!req->self)
304 { 481 {
… …
313newSVaio_wd (aio_wd wd) 490newSVaio_wd (aio_wd wd)
314{ 491{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash); 492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316} 493}
317 494
495ecb_noinline
318static aio_req 496static aio_req
319SvAIO_REQ (SV *sv) 497SvAIO_REQ (SV *sv)
320{ 498{
321 MAGIC *mg; 499 MAGIC *mg;
322 500
… …
385 FREETMPS; 563 FREETMPS;
386 LEAVE; 564 LEAVE;
387 } 565 }
388} 566}
389 567
568ecb_noinline
390static void 569static void
391req_submit (eio_req *req) 570req_submit (eio_req *req)
392{ 571{
393 eio_submit (req); 572 eio_submit (req);
394 573
… …
591 SvSETMAGIC (req->sv2); 770 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result); 771 PUSHs (sv_result);
593 } 772 }
594 break; 773 break;
595 774
775 case EIO_SLURP:
776 {
777 if (req->result >= 0)
778 {
779 /* if length was originally not known, we steal the malloc'ed memory */
780 if (req->flags & EIO_FLAG_PTR2_FREE)
781 {
782 req->flags &= ~EIO_FLAG_PTR2_FREE;
783 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
784 }
785 else
786 {
787 SvCUR_set (req->sv2, req->result);
788 *SvEND (req->sv2) = 0;
789 SvPOK_only (req->sv2);
790 }
791
792 SvSETMAGIC (req->sv2);
793 }
794
795 PUSHs (sv_result);
796 }
797 break;
798
596 case EIO_CUSTOM: 799 case EIO_CUSTOM:
597 if (req->feed == fiemap) 800 if (req->feed == fiemap)
598 { 801 {
599#if HAVE_FIEMAP 802#if HAVE_FIEMAP
600 if (!req->result) 803 if (!req->result)
… …
631 } 834 }
632 else 835 else
633 PUSHs (sv_result); 836 PUSHs (sv_result);
634 break; 837 break;
635 838
839#if 0
840 case EIO_CLOSE:
841 PerlIOUnix_refcnt_dec (req->int1);
842 break;
843#endif
844
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 845 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0) 846 if (req->result > 0)
638 SvIV_set (sv_result, 0); 847 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */ 848 /* FALLTHROUGH */
640 849
… …
691 grp->sv2 = 0; 900 grp->sv2 = 0;
692 901
693 eio_grp_cancel (grp); 902 eio_grp_cancel (grp);
694} 903}
695 904
696static void ecb_cold 905ecb_cold
906static void
697create_respipe (void) 907create_respipe (void)
698{ 908{
699 if (s_epipe_renew (&respipe)) 909 if (s_epipe_renew (&respipe))
700 croak ("IO::AIO: unable to initialize result pipe"); 910 croak ("IO::AIO: unable to initialize result pipe");
701} 911}
… …
735 945
736 poll_wait (); 946 poll_wait ();
737 } 947 }
738} 948}
739 949
740static void ecb_cold 950ecb_cold
951static void
741reinit (void) 952reinit (void)
742{ 953{
743 create_respipe (); 954 create_respipe ();
744 955
745 if (eio_init (want_poll, done_poll) < 0) 956 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library"); 957 croak ("IO::AIO: unable to initialise eio library");
747} 958}
748 959
749/*****************************************************************************/ 960/*****************************************************************************/
750 961
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV * 962static SV *
790get_cb (SV *cb_sv) 963get_cb (SV *cb_sv)
791{ 964{
792 SvGETMAGIC (cb_sv); 965 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794} 967}
795 968
969ecb_noinline
796static aio_req ecb_noinline 970static aio_req ecb_noinline
797dreq (SV *callback) 971dreq (SV *callback)
798{ 972{
799 SV *cb_cv; 973 SV *cb_cv;
800 aio_req req; 974 aio_req req;
… …
822 SPAGAIN; \ 996 SPAGAIN; \
823 \ 997 \
824 if (GIMME_V != G_VOID) \ 998 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash)); 999 XPUSHs (req_sv (req, aio_req_stash));
826 1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
827ecb_inline void 1002ecb_inline
1003void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr) 1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{ 1005{
830 if (expect_false (SvROK (path))) 1006 if (expect_false (SvROK (path)))
831 { 1007 {
832 SV *rv = SvRV (path); 1008 SV *rv = SvRV (path);
833 SV *wdob; 1009 SV *wdob;
… …
858 1034
859 *pathsv = newSVsv (path); 1035 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv); 1036 *ptr = SvPVbyte_nolen (*pathsv);
861} 1037}
862 1038
863static void ecb_noinline 1039ecb_noinline
1040static void
864req_set_path1 (aio_req req, SV *path) 1041req_set_path1 (aio_req req, SV *path)
865{ 1042{
866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1); 1043 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
867} 1044}
868 1045
869static void ecb_noinline 1046ecb_noinline
1047static void
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path) 1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
871{ 1049{
872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path; 1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
873 1051
874 switch (SvTYPE (rv)) 1052 switch (SvTYPE (rv))
… …
886 req_set_path1 (req, fh_or_path); 1064 req_set_path1 (req, fh_or_path);
887 break; 1065 break;
888 } 1066 }
889} 1067}
890 1068
1069/*****************************************************************************/
1070
1071static void
1072ts_set (struct timespec *ts, NV value)
1073{
1074 ts->tv_sec = value;
1075 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1076}
1077
1078static NV
1079ts_get (const struct timespec *ts)
1080{
1081 return ts->tv_sec + ts->tv_nsec * 1e-9;
1082}
1083
1084/*****************************************************************************/
1085
891XS(boot_IO__AIO) ecb_cold; 1086XS(boot_IO__AIO) ecb_cold;
892 1087
893MODULE = IO::AIO PACKAGE = IO::AIO 1088MODULE = IO::AIO PACKAGE = IO::AIO
894 1089
895PROTOTYPES: ENABLE 1090PROTOTYPES: ENABLE
… …
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) 1121 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) 1122 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) 1123 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 1124
930 /* the second block will be 0 when missing */ 1125 /* the second block will be 0 when missing */
1126 const_iv (O_ACCMODE)
1127
931 const_iv (O_RDONLY) 1128 const_iv (O_RDONLY)
932 const_iv (O_WRONLY) 1129 const_iv (O_WRONLY)
933 const_iv (O_RDWR) 1130 const_iv (O_RDWR)
934 const_iv (O_CREAT) 1131 const_iv (O_CREAT)
935 const_iv (O_TRUNC) 1132 const_iv (O_TRUNC)
… …
995 const_iv (MAP_GROWSDOWN) 1192 const_iv (MAP_GROWSDOWN)
996 const_iv (MAP_32BIT) 1193 const_iv (MAP_32BIT)
997 const_iv (MAP_HUGETLB) 1194 const_iv (MAP_HUGETLB)
998 const_iv (MAP_STACK) 1195 const_iv (MAP_STACK)
999 1196
1197 const_iv (MREMAP_MAYMOVE)
1198 const_iv (MREMAP_FIXED)
1199
1000 const_iv (F_DUPFD_CLOEXEC) 1200 const_iv (F_DUPFD_CLOEXEC)
1201
1202 const_iv (MSG_CMSG_CLOEXEC)
1203 const_iv (SOCK_CLOEXEC)
1001 1204
1002 const_iv (F_OFD_GETLK) 1205 const_iv (F_OFD_GETLK)
1003 const_iv (F_OFD_SETLK) 1206 const_iv (F_OFD_SETLK)
1004 const_iv (F_OFD_GETLKW) 1207 const_iv (F_OFD_GETLKW)
1005 1208
… …
1078 const_iv (SPLICE_F_MOVE) 1281 const_iv (SPLICE_F_MOVE)
1079 const_iv (SPLICE_F_NONBLOCK) 1282 const_iv (SPLICE_F_NONBLOCK)
1080 const_iv (SPLICE_F_MORE) 1283 const_iv (SPLICE_F_MORE)
1081 const_iv (SPLICE_F_GIFT) 1284 const_iv (SPLICE_F_GIFT)
1082 1285
1286 const_iv (EFD_CLOEXEC)
1287 const_iv (EFD_NONBLOCK)
1288 const_iv (EFD_SEMAPHORE)
1289
1290 const_iv (MFD_CLOEXEC)
1291 const_iv (MFD_ALLOW_SEALING)
1292 const_iv (MFD_HUGETLB)
1293
1294 const_iv (CLOCK_REALTIME)
1295 const_iv (CLOCK_MONOTONIC)
1296 const_iv (CLOCK_BOOTTIME)
1297 const_iv (CLOCK_REALTIME_ALARM)
1298 const_iv (CLOCK_BOOTTIME_ALARM)
1299
1300 const_iv (TFD_NONBLOCK)
1301 const_iv (TFD_CLOEXEC)
1302
1303 const_iv (TFD_TIMER_ABSTIME)
1304 const_iv (TFD_TIMER_CANCEL_ON_SET)
1305
1306 const_iv (STATX_TYPE)
1307 const_iv (STATX_MODE)
1308 const_iv (STATX_NLINK)
1309 const_iv (STATX_UID)
1310 const_iv (STATX_GID)
1311 const_iv (STATX_ATIME)
1312 const_iv (STATX_MTIME)
1313 const_iv (STATX_CTIME)
1314 const_iv (STATX_INO)
1315 const_iv (STATX_SIZE)
1316 const_iv (STATX_BLOCKS)
1317 const_iv (STATX_BASIC_STATS)
1318 const_iv (STATX_ALL)
1319 const_iv (STATX_BTIME)
1320 const_iv (STATX_ATTR_COMPRESSED)
1321 const_iv (STATX_ATTR_IMMUTABLE)
1322 const_iv (STATX_ATTR_APPEND)
1323 const_iv (STATX_ATTR_NODUMP)
1324 const_iv (STATX_ATTR_ENCRYPTED)
1325 const_iv (STATX_ATTR_AUTOMOUNT)
1326
1083 /* these are libeio constants, and are independent of gendef0 */ 1327 /* these are libeio constants, and are independent of gendef0 */
1084 const_eio (SEEK_SET) 1328 const_eio (SEEK_SET)
1085 const_eio (SEEK_CUR) 1329 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END) 1330 const_eio (SEEK_END)
1087 1331
1088 const_eio (MCL_FUTURE) 1332 const_eio (MCL_FUTURE)
1089 const_eio (MCL_CURRENT) 1333 const_eio (MCL_CURRENT)
1334 const_eio (MCL_ONFAULT)
1090 1335
1091 const_eio (MS_ASYNC) 1336 const_eio (MS_ASYNC)
1092 const_eio (MS_INVALIDATE) 1337 const_eio (MS_INVALIDATE)
1093 const_eio (MS_SYNC) 1338 const_eio (MS_SYNC)
1094 1339
… …
1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) 1378 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1134 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); 1379 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1135 1380
1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1381 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1137 1382
1383 /* allocate dummy pipe fd for aio_close */
1384 {
1385 int pipefd [2];
1386
1387 if (
1388#ifdef _WIN32
1389 _pipe (pipefd, 1, _O_BINARY) < 0
1390#else
1391 pipe (pipefd) < 0
1392 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1393#endif
1394 || close (pipefd [1]) < 0
1395 )
1396 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1397
1398 close_fd = pipefd [0];
1399 }
1400
1138 reinit (); 1401 reinit ();
1139} 1402}
1140 1403
1141void 1404void
1142reinit () 1405reinit ()
… …
1264 1527
1265void 1528void
1266aio_close (SV *fh, SV *callback = &PL_sv_undef) 1529aio_close (SV *fh, SV *callback = &PL_sv_undef)
1267 PPCODE: 1530 PPCODE:
1268{ 1531{
1269 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1270 int fd = s_fileno_croak (fh, 0); 1532 int fd = s_fileno_croak (fh, 0);
1271 dREQ; 1533 dREQ;
1534#if 0
1535 /* partially duplicate logic in s_fileno */
1536 SvGETMAGIC (fh);
1272 1537
1273 if (expect_false (close_fd < 0)) 1538 if (SvROK (fh))
1539 {
1540 fh = SvRV (fh);
1541 SvGETMAGIC (fh);
1542 }
1543
1544 if (SvTYPE (fh) == SVt_PVGV)
1274 { 1545 {
1275 int pipefd [2]; 1546 /* perl filehandle */
1547 PerlIOUnix_refcnt_inc (fd);
1548 do_close ((GV *)fh, 1);
1276 1549
1277 if ( 1550 req->type = EIO_CLOSE;
1278#ifdef _WIN32 1551 req->int1 = fd;
1279 _pipe (pipefd, 1, _O_BINARY) < 0 1552 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1280#else
1281 pipe (pipefd) < 0
1282 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1283#endif
1284 || close (pipefd [1]) < 0
1285 )
1286 abort (); /*D*/
1287
1288 close_fd = pipefd [0];
1289 } 1553 }
1290 1554 else
1555#endif
1556 {
1557 /* fd number */
1291 req->type = EIO_DUP2; 1558 req->type = EIO_DUP2;
1292 req->int1 = close_fd; 1559 req->int1 = close_fd;
1293 req->sv2 = newSVsv (fh); 1560 req->sv2 = newSVsv (fh);
1294 req->int2 = fd; 1561 req->int2 = fd;
1562 }
1295 1563
1296 REQ_SEND; 1564 REQ_SEND;
1297} 1565}
1298 1566
1299void 1567void
… …
1470 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1738 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1471 1739
1472 REQ_SEND; 1740 REQ_SEND;
1473} 1741}
1474 1742
1743void
1744st_xtime ()
1745 ALIAS:
1746 st_atime = 0x01
1747 st_mtime = 0x02
1748 st_ctime = 0x04
1749 st_btime = 0x08
1750 st_xtime = 0x0f
1751 PPCODE:
1752 EXTEND (SP, 4);
1753 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1754 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1755 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1756 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1757
1758void
1759st_xtimensec ()
1760 ALIAS:
1761 st_atimensec = 0x01
1762 st_mtimensec = 0x02
1763 st_ctimensec = 0x04
1764 st_btimensec = 0x08
1765 st_xtimensec = 0x0f
1766 st_btimesec = 0x10
1767 st_gen = 0x20
1768 PPCODE:
1769 EXTEND (SP, 4);
1770 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1771 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1772 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1773 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1774 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1775 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1776
1475UV 1777UV
1476major (UV dev) 1778major (UV dev)
1477 ALIAS: 1779 ALIAS:
1478 minor = 1 1780 minor = 1
1479 CODE: 1781 CODE:
… …
1595 eio_wd wd2 = 0; 1897 eio_wd wd2 = 0;
1596 dREQ; 1898 dREQ;
1597 1899
1598 req->type = ix; 1900 req->type = ix;
1599 req_set_path1 (req, oldpath); 1901 req_set_path1 (req, oldpath);
1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1902 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1601 req->int3 = (long)wd2; 1903 req->int3 = (long)wd2;
1602 1904
1603 REQ_SEND; 1905 REQ_SEND;
1604} 1906}
1605 1907
… …
1610 eio_wd wd2 = 0; 1912 eio_wd wd2 = 0;
1611 dREQ; 1913 dREQ;
1612 1914
1613 req->type = EIO_RENAME; 1915 req->type = EIO_RENAME;
1614 req_set_path1 (req, oldpath); 1916 req_set_path1 (req, oldpath);
1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1917 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1616 req->int2 = flags; 1918 req->int2 = flags;
1617 req->int3 = (long)wd2; 1919 req->int3 = (long)wd2;
1618 1920
1619 REQ_SEND; 1921 REQ_SEND;
1620} 1922}
… …
1729 req->int2 = flags; 2031 req->int2 = flags;
1730 req->int3 = SvOK (count) ? SvIV (count) : -1; 2032 req->int3 = SvOK (count) ? SvIV (count) : -1;
1731#endif 2033#endif
1732 2034
1733 REQ_SEND; 2035 REQ_SEND;
2036}
2037
2038void
2039aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2040 PPCODE:
2041{
2042 char *svptr = 0;
2043
2044 sv_clear_foreign (data);
2045
2046 if (length) /* known length, directly read into scalar */
2047 {
2048 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2049 svptr = sv_grow (data, length + 1);
2050 else if (SvCUR (data) < length)
2051 croak ("length outside of scalar, and cannot grow");
2052 else
2053 svptr = SvPVbyte_nolen (data);
2054 }
2055
2056 {
2057 dREQ;
2058
2059 req->type = EIO_SLURP;
2060 req_set_path1 (req, pathname);
2061 req->offs = offset;
2062 req->size = length;
2063 req->sv2 = SvREFCNT_inc (data);
2064 req->ptr2 = svptr;
2065
2066 if (!SvREADONLY (data))
2067 {
2068 SvREADONLY_on (data);
2069 req->flags |= FLAG_SV2_RO_OFF;
2070 }
2071
2072 REQ_SEND;
2073 }
1734} 2074}
1735 2075
1736void 2076void
1737aio_busy (double delay, SV *callback = &PL_sv_undef) 2077aio_busy (double delay, SV *callback = &PL_sv_undef)
1738 PPCODE: 2078 PPCODE:
… …
1875 RETVAL 2215 RETVAL
1876 2216
1877void 2217void
1878mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) 2218mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1879 PPCODE: 2219 PPCODE:
1880 sv_unmagic (scalar, MMAP_MAGIC); 2220 sv_clear_foreign (scalar);
1881{ 2221{
1882 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 2222 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 2223 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1884 if (addr == (void *)-1) 2224 if (addr == (void *)-1)
1885 XSRETURN_NO; 2225 XSRETURN_NO;
1886 2226
1887 sv_force_normal (scalar); 2227 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1888
1889 /* we store the length in mg_obj, as namlen is I32 :/ */
1890 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1891 ->mg_obj = (SV *)length;
1892
1893 SvUPGRADE (scalar, SVt_PV); /* nop... */
1894 2228
1895 if (!(prot & PROT_WRITE)) 2229 if (!(prot & PROT_WRITE))
1896 SvREADONLY_on (scalar); 2230 SvREADONLY_on (scalar);
1897 2231
1898 if (SvLEN (scalar))
1899 Safefree (SvPVX (scalar));
1900
1901 SvPVX (scalar) = (char *)addr;
1902 SvCUR_set (scalar, length);
1903 SvLEN_set (scalar, 0);
1904 SvPOK_only (scalar);
1905
1906 XSRETURN_YES; 2232 XSRETURN_YES;
1907} 2233}
1908 2234
1909void 2235void
1910munmap (SV *scalar) 2236munmap (SV *scalar)
1911 CODE: 2237 CODE:
1912 sv_unmagic (scalar, MMAP_MAGIC); 2238 sv_clear_foreign (scalar);
2239
2240SV *
2241mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2242 CODE:
2243{
2244 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2245 void *new;
2246
2247 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2248 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2249
2250 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2251
2252 RETVAL = &PL_sv_no;
2253
2254 if (new != (void *)-1)
2255 {
2256 RETVAL = new == (void *)mg->mg_ptr
2257 ? newSVpvn ("0 but true", 10)
2258 : &PL_sv_yes;
2259
2260 mg->mg_ptr = (char *)new;
2261 mg->mg_obj = (SV *)new_length;
2262
2263 SvPVX (scalar) = mg->mg_ptr;
2264 SvCUR_set (scalar, new_length);
2265 }
2266}
2267 OUTPUT:
2268 RETVAL
1913 2269
1914int 2270int
1915madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) 2271madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1916 ALIAS: 2272 ALIAS:
1917 mprotect = 1 2273 mprotect = 1
1918 CODE: 2274 CODE:
1919{ 2275{
1920 STRLEN svlen; 2276 STRLEN svlen;
… …
1941} 2297}
1942 OUTPUT: 2298 OUTPUT:
1943 RETVAL 2299 RETVAL
1944 2300
1945int 2301int
1946munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2302munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1947 CODE: 2303 CODE:
1948{ 2304{
1949 STRLEN svlen; 2305 STRLEN svlen;
1950 void *addr = SvPVbyte (scalar, svlen); 2306 void *addr = SvPVbyte (scalar, svlen);
1951 size_t len = SvUV (length); 2307 size_t len = SvUV (length);
… …
1966#else 2322#else
1967 RETVAL = EIO_ENOSYS (); 2323 RETVAL = EIO_ENOSYS ();
1968#endif 2324#endif
1969} 2325}
1970 OUTPUT: 2326 OUTPUT:
2327 RETVAL
2328
2329int
2330mlockall (int flags)
2331 PROTOTYPE: $;
2332 CODE:
2333 RETVAL = eio_mlockall_sync (flags);
2334 OUTPUT:
1971 RETVAL 2335 RETVAL
1972 2336
1973int 2337int
1974munlockall () 2338munlockall ()
1975 CODE: 2339 CODE:
… …
1977 munlockall (); 2341 munlockall ();
1978#else 2342#else
1979 RETVAL = EIO_ENOSYS (); 2343 RETVAL = EIO_ENOSYS ();
1980#endif 2344#endif
1981 OUTPUT: 2345 OUTPUT:
2346 RETVAL
2347
2348int
2349statx (SV8 *pathname, int flags, UV mask)
2350 CODE:
2351{
2352 /* undocumented, and might go away, and anyway, should use eio_statx */
2353 SV *wdsv = 0;
2354 SV *pathsv = 0;
2355 eio_wd wd = EIO_CWD;
2356 void *ptr;
2357 int res;
2358
2359 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2360 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2361
2362 SvREFCNT_dec (pathsv);
2363 SvREFCNT_dec (wdsv);
2364}
2365 OUTPUT:
2366 RETVAL
2367
2368U32
2369stx_mode ()
2370 PROTOTYPE:
2371 CODE:
2372#if HAVE_STATX
2373 RETVAL = stx.stx_mode;
2374#else
2375 XSRETURN_UNDEF;
2376#endif
2377 OUTPUT:
2378 RETVAL
2379
2380#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2381#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2382#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2383#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2384#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2385#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2386#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2387#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2388#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2389#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2390#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2391#define STATX_OFFSET_size statx_offsetof (stx_size)
2392#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2393#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2394#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2395#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2396#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2397#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2398
2399U32
2400stx_mask ()
2401 PROTOTYPE:
2402 ALIAS:
2403 stx_mask = STATX_OFFSET_mask
2404 stx_blksize = STATX_OFFSET_blksize
2405 stx_nlink = STATX_OFFSET_nlink
2406 stx_uid = STATX_OFFSET_uid
2407 stx_gid = STATX_OFFSET_gid
2408 stx_rdev_major = STATX_OFFSET_rdev_major
2409 stx_rdev_minor = STATX_OFFSET_rdev_minor
2410 stx_dev_major = STATX_OFFSET_dev_major
2411 stx_dev_minor = STATX_OFFSET_dev_minor
2412 CODE:
2413#if HAVE_STATX
2414 RETVAL = *(__u32 *)((char *)&stx + ix);
2415#else
2416 XSRETURN_UNDEF;
2417#endif
2418 OUTPUT:
2419 RETVAL
2420
2421VAL64
2422stx_attributes ()
2423 PROTOTYPE:
2424 ALIAS:
2425 stx_attributes = STATX_OFFSET_attributes
2426 stx_ino = STATX_OFFSET_ino
2427 stx_size = STATX_OFFSET_size
2428 stx_blocks = STATX_OFFSET_blocks
2429 stx_attributes_mask = STATX_OFFSET_attributes_mask
2430 CODE:
2431#if HAVE_STATX
2432 RETVAL = *(__u64 *)((char *)&stx + ix);
2433#else
2434 XSRETURN_UNDEF;
2435#endif
2436 OUTPUT:
2437 RETVAL
2438
2439NV
2440stx_atime ()
2441 PROTOTYPE:
2442 ALIAS:
2443 stx_atime = STATX_OFFSET_atime
2444 stx_btime = STATX_OFFSET_btime
2445 stx_ctime = STATX_OFFSET_ctime
2446 stx_mtime = STATX_OFFSET_mtime
2447 CODE:
2448#if HAVE_STATX
2449 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2450 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
2456
2457VAL64
2458stx_atimesec ()
2459 PROTOTYPE:
2460 ALIAS:
2461 stx_atimesec = STATX_OFFSET_atime
2462 stx_btimesec = STATX_OFFSET_btime
2463 stx_ctimesec = STATX_OFFSET_ctime
2464 stx_mtimesec = STATX_OFFSET_mtime
2465 CODE:
2466#if HAVE_STATX
2467 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2468 RETVAL = ts->tv_sec;
2469#else
2470 XSRETURN_UNDEF;
2471#endif
2472 OUTPUT:
2473 RETVAL
2474
2475U32
2476stx_atimensec ()
2477 PROTOTYPE:
2478 ALIAS:
2479 stx_atimensec = STATX_OFFSET_atime
2480 stx_btimensec = STATX_OFFSET_btime
2481 stx_ctimensec = STATX_OFFSET_ctime
2482 stx_mtimensec = STATX_OFFSET_mtime
2483 CODE:
2484#if HAVE_STATX
2485 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2486 RETVAL = ts->tv_nsec;
2487#else
2488 RETVAL = 0;
2489#endif
2490 OUTPUT:
1982 RETVAL 2491 RETVAL
1983 2492
1984int 2493int
1985splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) 2494splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1986 CODE: 2495 CODE:
… …
2047 { 2556 {
2048 EXTEND (SP, 2); 2557 EXTEND (SP, 2);
2049 PUSHs (newmortalFH (fd[0], O_RDONLY)); 2558 PUSHs (newmortalFH (fd[0], O_RDONLY));
2050 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2559 PUSHs (newmortalFH (fd[1], O_WRONLY));
2051 } 2560 }
2561}
2562
2563void
2564eventfd (unsigned int initval = 0, int flags = 0)
2565 PPCODE:
2566{
2567 int fd;
2568#if HAVE_EVENTFD
2569 fd = eventfd (initval, flags);
2570#else
2571 fd = (errno = ENOSYS, -1);
2572#endif
2573
2574 XPUSHs (newmortalFH (fd, O_RDWR));
2575}
2576
2577void
2578timerfd_create (int clockid, int flags = 0)
2579 PPCODE:
2580{
2581 int fd;
2582#if HAVE_TIMERFD
2583 fd = timerfd_create (clockid, flags);
2584#else
2585 fd = (errno = ENOSYS, -1);
2586#endif
2587
2588 XPUSHs (newmortalFH (fd, O_RDWR));
2589}
2590
2591void
2592timerfd_settime (SV *fh, int flags, NV interval, NV value)
2593 PPCODE:
2594{
2595 int fd = s_fileno_croak (fh, 0);
2596#if HAVE_TIMERFD
2597 int res;
2598 struct itimerspec its, ots;
2599
2600 ts_set (&its.it_interval, interval);
2601 ts_set (&its.it_value , value);
2602 res = timerfd_settime (fd, flags, &its, &ots);
2603
2604 if (!res)
2605 {
2606 EXTEND (SP, 2);
2607 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2608 PUSHs (newSVnv (ts_get (&ots.it_value)));
2609 }
2610#else
2611 errno = ENOSYS;
2612#endif
2613}
2614
2615void
2616timerfd_gettime (SV *fh)
2617 PPCODE:
2618{
2619 int fd = s_fileno_croak (fh, 0);
2620#if HAVE_TIMERFD
2621 int res;
2622 struct itimerspec ots;
2623 res = timerfd_gettime (fd, &ots);
2624
2625 if (!res)
2626 {
2627 EXTEND (SP, 2);
2628 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2629 PUSHs (newSVnv (ts_get (&ots.it_value)));
2630 }
2631#else
2632 errno = ENOSYS;
2633#endif
2634}
2635
2636void
2637memfd_create (SV8 *pathname, int flags = 0)
2638 PPCODE:
2639{
2640 int fd;
2641#if HAVE_MEMFD_CREATE
2642 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2643#else
2644 fd = (errno = ENOSYS, -1);
2645#endif
2646
2647 XPUSHs (newmortalFH (fd, O_RDWR));
2648}
2649
2650UV
2651get_fdlimit ()
2652 CODE:
2653#if HAVE_RLIMITS
2654 struct rlimit rl;
2655 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2656 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2657#endif
2658 XSRETURN_UNDEF;
2659 OUTPUT:
2660 RETVAL
2661
2662void
2663min_fdlimit (UV limit = 0x7fffffffU)
2664 CODE:
2665{
2666#if HAVE_RLIMITS
2667 struct rlimit rl;
2668 rlim_t orig_rlim_max;
2669 UV bit;
2670
2671 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2672 goto fail;
2673
2674 if (rl.rlim_cur == RLIM_INFINITY)
2675 XSRETURN_YES;
2676
2677 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2678
2679 if (rl.rlim_cur < limit)
2680 {
2681 rl.rlim_cur = limit;
2682
2683 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2684 rl.rlim_max = rl.rlim_cur;
2685 }
2686
2687 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2688 XSRETURN_YES;
2689
2690 if (errno == EPERM)
2691 {
2692 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2693 /* our limit overflows a system-wide limit */
2694 /* try an adaptive algorithm, but do not lower the hardlimit */
2695 rl.rlim_max = 0;
2696 for (bit = 0x40000000U; bit; bit >>= 1)
2697 {
2698 rl.rlim_max |= bit;
2699 rl.rlim_cur = rl.rlim_max;
2700
2701 /* nevr decrease the hard limit */
2702 if (rl.rlim_max < orig_rlim_max)
2703 break;
2704
2705 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2706 rl.rlim_max &= ~bit; /* too high, remove bit again */
2707 }
2708
2709 /* now, raise the soft limit to the max permitted */
2710 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2711 {
2712 rl.rlim_cur = rl.rlim_max;
2713 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2714 errno = EPERM;
2715 }
2716 }
2717#endif
2718 fail:
2719 XSRETURN_UNDEF;
2052} 2720}
2053 2721
2054void _on_next_submit (SV *cb) 2722void _on_next_submit (SV *cb)
2055 CODE: 2723 CODE:
2056 SvREFCNT_dec (on_next_submit); 2724 SvREFCNT_dec (on_next_submit);

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