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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.248 by root, Fri Jun 23 22:33:06 2017 UTC vs.
Revision 1.275 by root, Mon Mar 18 23:52:09 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 (CLOCK_REALTIME)
1291 const_iv (CLOCK_MONOTONIC)
1292 const_iv (CLOCK_BOOTTIME)
1293 const_iv (CLOCK_REALTIME_ALARM)
1294 const_iv (CLOCK_BOOTTIME_ALARM)
1295
1296 const_iv (TFD_NONBLOCK)
1297 const_iv (TFD_CLOEXEC)
1298
1299 const_iv (TFD_TIMER_ABSTIME)
1300 const_iv (TFD_TIMER_CANCEL_ON_SET)
1301
1302 const_iv (STATX_TYPE)
1303 const_iv (STATX_MODE)
1304 const_iv (STATX_NLINK)
1305 const_iv (STATX_UID)
1306 const_iv (STATX_GID)
1307 const_iv (STATX_ATIME)
1308 const_iv (STATX_MTIME)
1309 const_iv (STATX_CTIME)
1310 const_iv (STATX_INO)
1311 const_iv (STATX_SIZE)
1312 const_iv (STATX_BLOCKS)
1313 const_iv (STATX_BASIC_STATS)
1314 const_iv (STATX_ALL)
1315 const_iv (STATX_BTIME)
1316 const_iv (STATX_ATTR_COMPRESSED)
1317 const_iv (STATX_ATTR_IMMUTABLE)
1318 const_iv (STATX_ATTR_APPEND)
1319 const_iv (STATX_ATTR_NODUMP)
1320 const_iv (STATX_ATTR_ENCRYPTED)
1321 const_iv (STATX_ATTR_AUTOMOUNT)
1322
1083 /* these are libeio constants, and are independent of gendef0 */ 1323 /* these are libeio constants, and are independent of gendef0 */
1084 const_eio (SEEK_SET) 1324 const_eio (SEEK_SET)
1085 const_eio (SEEK_CUR) 1325 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END) 1326 const_eio (SEEK_END)
1087 1327
1088 const_eio (MCL_FUTURE) 1328 const_eio (MCL_FUTURE)
1089 const_eio (MCL_CURRENT) 1329 const_eio (MCL_CURRENT)
1330 const_eio (MCL_ONFAULT)
1090 1331
1091 const_eio (MS_ASYNC) 1332 const_eio (MS_ASYNC)
1092 const_eio (MS_INVALIDATE) 1333 const_eio (MS_INVALIDATE)
1093 const_eio (MS_SYNC) 1334 const_eio (MS_SYNC)
1094 1335
… …
1100 1341
1101 const_eio (FALLOC_FL_KEEP_SIZE) 1342 const_eio (FALLOC_FL_KEEP_SIZE)
1102 const_eio (FALLOC_FL_PUNCH_HOLE) 1343 const_eio (FALLOC_FL_PUNCH_HOLE)
1103 const_eio (FALLOC_FL_COLLAPSE_RANGE) 1344 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1104 const_eio (FALLOC_FL_ZERO_RANGE) 1345 const_eio (FALLOC_FL_ZERO_RANGE)
1105 const_eio (FALLOC_FL_INSET_RANGE) 1346 const_eio (FALLOC_FL_INSERT_RANGE)
1106 const_eio (FALLOC_FL_UNSHARE_RANGE) 1347 const_eio (FALLOC_FL_UNSHARE_RANGE)
1107 1348
1108 const_eio (RENAME_NOREPLACE) 1349 const_eio (RENAME_NOREPLACE)
1109 const_eio (RENAME_EXCHANGE) 1350 const_eio (RENAME_EXCHANGE)
1110 const_eio (RENAME_WHITEOUT) 1351 const_eio (RENAME_WHITEOUT)
… …
1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) 1374 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)); 1375 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1135 1376
1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1377 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1137 1378
1379 /* allocate dummy pipe fd for aio_close */
1380 {
1381 int pipefd [2];
1382
1383 if (
1384#ifdef _WIN32
1385 _pipe (pipefd, 1, _O_BINARY) < 0
1386#else
1387 pipe (pipefd) < 0
1388 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1389#endif
1390 || close (pipefd [1]) < 0
1391 )
1392 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1393
1394 close_fd = pipefd [0];
1395 }
1396
1138 reinit (); 1397 reinit ();
1139} 1398}
1140 1399
1141void 1400void
1142reinit () 1401reinit ()
… …
1264 1523
1265void 1524void
1266aio_close (SV *fh, SV *callback = &PL_sv_undef) 1525aio_close (SV *fh, SV *callback = &PL_sv_undef)
1267 PPCODE: 1526 PPCODE:
1268{ 1527{
1269 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1270 int fd = s_fileno_croak (fh, 0); 1528 int fd = s_fileno_croak (fh, 0);
1271 dREQ; 1529 dREQ;
1530#if 0
1531 /* partially duplicate logic in s_fileno */
1532 SvGETMAGIC (fh);
1272 1533
1273 if (expect_false (close_fd < 0)) 1534 if (SvROK (fh))
1535 {
1536 fh = SvRV (fh);
1537 SvGETMAGIC (fh);
1538 }
1539
1540 if (SvTYPE (fh) == SVt_PVGV)
1274 { 1541 {
1275 int pipefd [2]; 1542 /* perl filehandle */
1543 PerlIOUnix_refcnt_inc (fd);
1544 do_close ((GV *)fh, 1);
1276 1545
1277 if ( 1546 req->type = EIO_CLOSE;
1278#ifdef _WIN32 1547 req->int1 = fd;
1279 _pipe (pipefd, 1, _O_BINARY) < 0 1548 /*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 } 1549 }
1290 1550 else
1551#endif
1552 {
1553 /* fd number */
1291 req->type = EIO_DUP2; 1554 req->type = EIO_DUP2;
1292 req->int1 = close_fd; 1555 req->int1 = close_fd;
1293 req->sv2 = newSVsv (fh); 1556 req->sv2 = newSVsv (fh);
1294 req->int2 = fd; 1557 req->int2 = fd;
1558 }
1295 1559
1296 REQ_SEND; 1560 REQ_SEND;
1297} 1561}
1298 1562
1299void 1563void
… …
1470 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1734 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1471 1735
1472 REQ_SEND; 1736 REQ_SEND;
1473} 1737}
1474 1738
1739void
1740st_xtime ()
1741 ALIAS:
1742 st_atime = 0x01
1743 st_mtime = 0x02
1744 st_ctime = 0x04
1745 st_btime = 0x08
1746 st_xtime = 0x0f
1747 PPCODE:
1748 EXTEND (SP, 4);
1749 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1750 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1751 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1752 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1753
1754void
1755st_xtimensec ()
1756 ALIAS:
1757 st_atimensec = 0x01
1758 st_mtimensec = 0x02
1759 st_ctimensec = 0x04
1760 st_btimensec = 0x08
1761 st_xtimensec = 0x0f
1762 st_btimesec = 0x10
1763 st_gen = 0x20
1764 PPCODE:
1765 EXTEND (SP, 4);
1766 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1767 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1768 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1769 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1770 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1771 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1772
1475UV 1773UV
1476major (UV dev) 1774major (UV dev)
1477 ALIAS: 1775 ALIAS:
1478 minor = 1 1776 minor = 1
1479 CODE: 1777 CODE:
… …
1595 eio_wd wd2 = 0; 1893 eio_wd wd2 = 0;
1596 dREQ; 1894 dREQ;
1597 1895
1598 req->type = ix; 1896 req->type = ix;
1599 req_set_path1 (req, oldpath); 1897 req_set_path1 (req, oldpath);
1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1898 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1601 req->int3 = (long)wd2; 1899 req->int3 = (long)wd2;
1602 1900
1603 REQ_SEND; 1901 REQ_SEND;
1604} 1902}
1605 1903
… …
1610 eio_wd wd2 = 0; 1908 eio_wd wd2 = 0;
1611 dREQ; 1909 dREQ;
1612 1910
1613 req->type = EIO_RENAME; 1911 req->type = EIO_RENAME;
1614 req_set_path1 (req, oldpath); 1912 req_set_path1 (req, oldpath);
1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1913 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1616 req->int2 = flags; 1914 req->int2 = flags;
1617 req->int3 = (long)wd2; 1915 req->int3 = (long)wd2;
1618 1916
1619 REQ_SEND; 1917 REQ_SEND;
1620} 1918}
… …
1729 req->int2 = flags; 2027 req->int2 = flags;
1730 req->int3 = SvOK (count) ? SvIV (count) : -1; 2028 req->int3 = SvOK (count) ? SvIV (count) : -1;
1731#endif 2029#endif
1732 2030
1733 REQ_SEND; 2031 REQ_SEND;
2032}
2033
2034void
2035aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2036 PPCODE:
2037{
2038 char *svptr = 0;
2039
2040 sv_clear_foreign (data);
2041
2042 if (length) /* known length, directly read into scalar */
2043 {
2044 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2045 svptr = sv_grow (data, length + 1);
2046 else if (SvCUR (data) < length)
2047 croak ("length outside of scalar, and cannot grow");
2048 else
2049 svptr = SvPVbyte_nolen (data);
2050 }
2051
2052 {
2053 dREQ;
2054
2055 req->type = EIO_SLURP;
2056 req_set_path1 (req, pathname);
2057 req->offs = offset;
2058 req->size = length;
2059 req->sv2 = SvREFCNT_inc (data);
2060 req->ptr2 = svptr;
2061
2062 if (!SvREADONLY (data))
2063 {
2064 SvREADONLY_on (data);
2065 req->flags |= FLAG_SV2_RO_OFF;
2066 }
2067
2068 REQ_SEND;
2069 }
1734} 2070}
1735 2071
1736void 2072void
1737aio_busy (double delay, SV *callback = &PL_sv_undef) 2073aio_busy (double delay, SV *callback = &PL_sv_undef)
1738 PPCODE: 2074 PPCODE:
… …
1875 RETVAL 2211 RETVAL
1876 2212
1877void 2213void
1878mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) 2214mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1879 PPCODE: 2215 PPCODE:
1880 sv_unmagic (scalar, MMAP_MAGIC); 2216 sv_clear_foreign (scalar);
1881{ 2217{
1882 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 2218 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 2219 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1884 if (addr == (void *)-1) 2220 if (addr == (void *)-1)
1885 XSRETURN_NO; 2221 XSRETURN_NO;
1886 2222
1887 sv_force_normal (scalar); 2223 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 2224
1895 if (!(prot & PROT_WRITE)) 2225 if (!(prot & PROT_WRITE))
1896 SvREADONLY_on (scalar); 2226 SvREADONLY_on (scalar);
1897 2227
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; 2228 XSRETURN_YES;
1907} 2229}
1908 2230
1909void 2231void
1910munmap (SV *scalar) 2232munmap (SV *scalar)
1911 CODE: 2233 CODE:
1912 sv_unmagic (scalar, MMAP_MAGIC); 2234 sv_clear_foreign (scalar);
2235
2236SV *
2237mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2238 CODE:
2239{
2240 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2241 void *new;
2242
2243 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2244 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2245
2246 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2247
2248 RETVAL = &PL_sv_no;
2249
2250 if (new != (void *)-1)
2251 {
2252 RETVAL = new == (void *)mg->mg_ptr
2253 ? newSVpvn ("0 but true", 10)
2254 : &PL_sv_yes;
2255
2256 mg->mg_ptr = (char *)new;
2257 mg->mg_obj = (SV *)new_length;
2258
2259 SvPVX (scalar) = mg->mg_ptr;
2260 SvCUR_set (scalar, new_length);
2261 }
2262}
2263 OUTPUT:
2264 RETVAL
1913 2265
1914int 2266int
1915madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) 2267madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1916 ALIAS: 2268 ALIAS:
1917 mprotect = 1 2269 mprotect = 1
1918 CODE: 2270 CODE:
1919{ 2271{
1920 STRLEN svlen; 2272 STRLEN svlen;
… …
1941} 2293}
1942 OUTPUT: 2294 OUTPUT:
1943 RETVAL 2295 RETVAL
1944 2296
1945int 2297int
1946munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2298munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1947 CODE: 2299 CODE:
1948{ 2300{
1949 STRLEN svlen; 2301 STRLEN svlen;
1950 void *addr = SvPVbyte (scalar, svlen); 2302 void *addr = SvPVbyte (scalar, svlen);
1951 size_t len = SvUV (length); 2303 size_t len = SvUV (length);
… …
1966#else 2318#else
1967 RETVAL = EIO_ENOSYS (); 2319 RETVAL = EIO_ENOSYS ();
1968#endif 2320#endif
1969} 2321}
1970 OUTPUT: 2322 OUTPUT:
2323 RETVAL
2324
2325int
2326mlockall (int flags)
2327 PROTOTYPE: $;
2328 CODE:
2329 RETVAL = eio_mlockall_sync (flags);
2330 OUTPUT:
1971 RETVAL 2331 RETVAL
1972 2332
1973int 2333int
1974munlockall () 2334munlockall ()
1975 CODE: 2335 CODE:
… …
1977 munlockall (); 2337 munlockall ();
1978#else 2338#else
1979 RETVAL = EIO_ENOSYS (); 2339 RETVAL = EIO_ENOSYS ();
1980#endif 2340#endif
1981 OUTPUT: 2341 OUTPUT:
2342 RETVAL
2343
2344int
2345statx (SV8 *pathname, int flags, UV mask)
2346 CODE:
2347{
2348 /* undocumented, and might go away, and anyway, should use eio_statx */
2349 SV *wdsv = 0;
2350 SV *pathsv = 0;
2351 eio_wd wd = EIO_CWD;
2352 void *ptr;
2353 int res;
2354
2355 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2356 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2357
2358 SvREFCNT_dec (pathsv);
2359 SvREFCNT_dec (wdsv);
2360}
2361 OUTPUT:
2362 RETVAL
2363
2364U32
2365stx_mode ()
2366 PROTOTYPE:
2367 CODE:
2368#if HAVE_STATX
2369 RETVAL = stx.stx_mode;
2370#else
2371 XSRETURN_UNDEF;
2372#endif
2373 OUTPUT:
2374 RETVAL
2375
2376#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2377#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2378#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2379#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2380#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2381#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2382#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2383#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2384#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2385#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2386#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2387#define STATX_OFFSET_size statx_offsetof (stx_size)
2388#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2389#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2390#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2391#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2392#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2393#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2394
2395U32
2396stx_mask ()
2397 PROTOTYPE:
2398 ALIAS:
2399 stx_mask = STATX_OFFSET_mask
2400 stx_blksize = STATX_OFFSET_blksize
2401 stx_nlink = STATX_OFFSET_nlink
2402 stx_uid = STATX_OFFSET_uid
2403 stx_gid = STATX_OFFSET_gid
2404 stx_rdev_major = STATX_OFFSET_rdev_major
2405 stx_rdev_minor = STATX_OFFSET_rdev_minor
2406 stx_dev_major = STATX_OFFSET_dev_major
2407 stx_dev_minor = STATX_OFFSET_dev_minor
2408 CODE:
2409#if HAVE_STATX
2410 RETVAL = *(__u32 *)((char *)&stx + ix);
2411#else
2412 XSRETURN_UNDEF;
2413#endif
2414 OUTPUT:
2415 RETVAL
2416
2417VAL64
2418stx_attributes ()
2419 PROTOTYPE:
2420 ALIAS:
2421 stx_attributes = STATX_OFFSET_attributes
2422 stx_ino = STATX_OFFSET_ino
2423 stx_size = STATX_OFFSET_size
2424 stx_blocks = STATX_OFFSET_blocks
2425 stx_attributes_mask = STATX_OFFSET_attributes_mask
2426 CODE:
2427#if HAVE_STATX
2428 RETVAL = *(__u64 *)((char *)&stx + ix);
2429#else
2430 XSRETURN_UNDEF;
2431#endif
2432 OUTPUT:
2433 RETVAL
2434
2435NV
2436stx_atime ()
2437 PROTOTYPE:
2438 ALIAS:
2439 stx_atime = STATX_OFFSET_atime
2440 stx_btime = STATX_OFFSET_btime
2441 stx_ctime = STATX_OFFSET_ctime
2442 stx_mtime = STATX_OFFSET_mtime
2443 CODE:
2444#if HAVE_STATX
2445 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2446 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2447#else
2448 XSRETURN_UNDEF;
2449#endif
2450 OUTPUT:
2451 RETVAL
2452
2453VAL64
2454stx_atimesec ()
2455 PROTOTYPE:
2456 ALIAS:
2457 stx_atimesec = STATX_OFFSET_atime
2458 stx_btimesec = STATX_OFFSET_btime
2459 stx_ctimesec = STATX_OFFSET_ctime
2460 stx_mtimesec = STATX_OFFSET_mtime
2461 CODE:
2462#if HAVE_STATX
2463 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2464 RETVAL = ts->tv_sec;
2465#else
2466 XSRETURN_UNDEF;
2467#endif
2468 OUTPUT:
2469 RETVAL
2470
2471U32
2472stx_atimensec ()
2473 PROTOTYPE:
2474 ALIAS:
2475 stx_atimensec = STATX_OFFSET_atime
2476 stx_btimensec = STATX_OFFSET_btime
2477 stx_ctimensec = STATX_OFFSET_ctime
2478 stx_mtimensec = STATX_OFFSET_mtime
2479 CODE:
2480#if HAVE_STATX
2481 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2482 RETVAL = ts->tv_nsec;
2483#else
2484 RETVAL = 0;
2485#endif
2486 OUTPUT:
1982 RETVAL 2487 RETVAL
1983 2488
1984int 2489int
1985splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) 2490splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1986 CODE: 2491 CODE:
… …
2047 { 2552 {
2048 EXTEND (SP, 2); 2553 EXTEND (SP, 2);
2049 PUSHs (newmortalFH (fd[0], O_RDONLY)); 2554 PUSHs (newmortalFH (fd[0], O_RDONLY));
2050 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2555 PUSHs (newmortalFH (fd[1], O_WRONLY));
2051 } 2556 }
2557}
2558
2559void
2560eventfd (unsigned int initval = 0, int flags = 0)
2561 PPCODE:
2562{
2563 int fd;
2564#if HAVE_EVENTFD
2565 fd = eventfd (initval, flags);
2566#else
2567 fd = (errno = ENOSYS, -1);
2568#endif
2569
2570 XPUSHs (newmortalFH (fd, O_RDWR));
2571}
2572
2573void
2574timerfd_create (int clockid, int flags = 0)
2575 PPCODE:
2576{
2577 int fd;
2578#if HAVE_TIMERFD
2579 fd = timerfd_create (clockid, flags);
2580#else
2581 fd = (errno = ENOSYS, -1);
2582#endif
2583
2584 XPUSHs (newmortalFH (fd, O_RDWR));
2585}
2586
2587void
2588timerfd_settime (SV *fh, int flags, NV interval, NV value)
2589 PPCODE:
2590{
2591 int fd = s_fileno_croak (fh, 0);
2592#if HAVE_TIMERFD
2593 int res;
2594 struct itimerspec its, ots;
2595
2596 ts_set (&its.it_interval, interval);
2597 ts_set (&its.it_value , value);
2598 res = timerfd_settime (fd, flags, &its, &ots);
2599
2600 if (!res)
2601 {
2602 EXTEND (SP, 2);
2603 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2604 PUSHs (newSVnv (ts_get (&ots.it_value)));
2605 }
2606#else
2607 errno = ENOSYS;
2608#endif
2609}
2610
2611void
2612timerfd_gettime (SV *fh)
2613 PPCODE:
2614{
2615 int fd = s_fileno_croak (fh, 0);
2616#if HAVE_TIMERFD
2617 int res;
2618 struct itimerspec ots;
2619 res = timerfd_gettime (fd, &ots);
2620
2621 if (!res)
2622 {
2623 EXTEND (SP, 2);
2624 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2625 PUSHs (newSVnv (ts_get (&ots.it_value)));
2626 }
2627#else
2628 errno = ENOSYS;
2629#endif
2630}
2631
2632UV
2633get_fdlimit ()
2634 CODE:
2635#if HAVE_RLIMITS
2636 struct rlimit rl;
2637 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2638 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2639#endif
2640 XSRETURN_UNDEF;
2641 OUTPUT:
2642 RETVAL
2643
2644void
2645min_fdlimit (UV limit = 0x7fffffffU)
2646 CODE:
2647{
2648#if HAVE_RLIMITS
2649 struct rlimit rl;
2650 rlim_t orig_rlim_max;
2651 UV bit;
2652
2653 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2654 goto fail;
2655
2656 if (rl.rlim_cur == RLIM_INFINITY)
2657 XSRETURN_YES;
2658
2659 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2660
2661 if (rl.rlim_cur < limit)
2662 {
2663 rl.rlim_cur = limit;
2664
2665 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2666 rl.rlim_max = rl.rlim_cur;
2667 }
2668
2669 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2670 XSRETURN_YES;
2671
2672 if (errno == EPERM)
2673 {
2674 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2675 /* our limit overflows a system-wide limit */
2676 /* try an adaptive algorithm, but do not lower the hardlimit */
2677 rl.rlim_max = 0;
2678 for (bit = 0x40000000U; bit; bit >>= 1)
2679 {
2680 rl.rlim_max |= bit;
2681 rl.rlim_cur = rl.rlim_max;
2682
2683 /* nevr decrease the hard limit */
2684 if (rl.rlim_max < orig_rlim_max)
2685 break;
2686
2687 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2688 rl.rlim_max &= ~bit; /* too high, remove bit again */
2689 }
2690
2691 /* now, raise the soft limit to the max permitted */
2692 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2693 {
2694 rl.rlim_cur = rl.rlim_max;
2695 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2696 errno = EPERM;
2697 }
2698 }
2699#endif
2700 fail:
2701 XSRETURN_UNDEF;
2052} 2702}
2053 2703
2054void _on_next_submit (SV *cb) 2704void _on_next_submit (SV *cb)
2055 CODE: 2705 CODE:
2056 SvREFCNT_dec (on_next_submit); 2706 SvREFCNT_dec (on_next_submit);

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