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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.234 by root, Thu Jun 25 15:20:11 2015 UTC vs.
Revision 1.287 by root, Tue Dec 29 15:28:02 2020 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
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		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>
22	#endif
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. on't complain if this fails for you.	26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
27	*/	28	*/
28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)	29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29	# include <linux/fs.h>	30	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	32	# include <linux/types.h>
…		…
74	#undef fchmod	75	#undef fchmod
75	#undef dup	76	#undef dup
76	#undef dup2	77	#undef dup2
77	#undef abort	78	#undef abort
78	#undef pipe	79	#undef pipe
		80	#undef utime
79		81
80	#define EIO_STRUCT_STAT struct _stati64	82	#define EIO_STRUCT_STAT struct _stati64
81	#define EIO_STRUCT_STATI64	83	#define EIO_STRUCT_STATI64
82		84
83	#else	85	#else
84		86
85	#include <sys/time.h>	87	#include <sys/time.h>
86	#include <sys/select.h>	88	#include <sys/select.h>
		89	#include <sys/wait.h>
87	#include <unistd.h>	90	#include <unistd.h>
88	#include <utime.h>	91	#include <utime.h>
89	#include <signal.h>	92	#include <signal.h>
90		93
91	#define EIO_STRUCT_STAT Stat_t	94	#define EIO_STRUCT_STAT Stat_t
…		…
102		105
103	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
105		108
106	/*****************************************************************************/	109	/*****************************************************************************/
		110
		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"
		159
		160	#if HAVE_EVENTFD
		161	# include <sys/eventfd.h>
		162	#endif
		163
		164	#if HAVE_TIMERFD
		165	# include <sys/timerfd.h>
		166	#endif
		167
		168	#if HAVE_RLIMITS
		169	#include <sys/time.h>
		170	#include <sys/resource.h>
		171	#endif
107		172
108	typedef SV SV8; /* byte-sv, used for argument-checking */	173	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	174	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	175	typedef int aio_wfd; /* write file descriptor */
111		176
…		…
118	STRLEN stroffset; \	183	STRLEN stroffset; \
119	SV *self;	184	SV *self;
120		185
121	#define EIO_NO_WRAPPERS 1	186	#define EIO_NO_WRAPPERS 1
122		187
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	188	#include "libeio/eio.h"
125		189
126	static int req_invoke (eio_req *req);	190	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	191	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	192	static void req_destroy (eio_req *grp);
…		…
144	# else	208	# else
145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	209	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
146	# endif	210	# endif
147	#endif	211	#endif
148		212
149	/* defines all sorts of constants to 0 unless they are already defined */
150	#include "def0.h"
151
152	#ifndef makedev	213	#ifndef makedev
153	# define makedev(maj,min) (((maj) << 8) | (min))	214	# define makedev(maj,min) (((maj) << 8) | (min))
154	#endif	215	#endif
155	#ifndef major	216	#ifndef major
156	# define major(dev) ((dev) >> 8)	217	# define major(dev) ((dev) >> 8)
157	#endif	218	#endif
158	#ifndef minor	219	#ifndef minor
159	# define minor(dev) ((dev) & 0xff)	220	# define minor(dev) ((dev) & 0xff)
160	#endif	221	#endif
161		222
		223	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		224	#ifdef __sun
		225	# undef PAGESIZE
		226	#endif
		227
162	#if PAGESIZE <= 0	228	#if PAGESIZE <= 0
163	# define PAGESIZE sysconf (_SC_PAGESIZE)	229	# define PAGESIZE sysconf (_SC_PAGESIZE)
164	#endif	230	#endif
		231
		232	#if HAVE_SYSCALL
		233	#include <sys/syscall.h>
		234	#else
		235	# define syscall(nr,...) (errno = ENOSYS, -1)
		236	#endif
		237
		238	/*****************************************************************************/
		239
		240	#if !_POSIX_MAPPED_FILES
		241	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		242	# define munmap(addr,length) EIO_ENOSYS ()
		243	#endif
		244
		245	#if !_POSIX_MEMORY_PROTECTION
		246	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		247	#endif
		248
		249	#if !MREMAP_MAYMOVE
		250	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		251	#endif
		252
		253	#define FOREIGN_MAGIC PERL_MAGIC_ext
		254
		255	static int ecb_cold
		256	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		257	{
		258	int old_errno = errno;
		259	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		260	errno = old_errno;
		261
		262	mg->mg_obj = 0; /* just in case */
		263
		264	SvREADONLY_off (sv);
		265
		266	if (SvPVX (sv) != mg->mg_ptr)
		267	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		268
		269	SvCUR_set (sv, 0);
		270	SvPVX (sv) = 0;
		271	SvOK_off (sv);
		272
		273	return 0;
		274	}
		275
		276	static MGVTBL mmap_vtbl = {
		277	0, 0, 0, 0, mmap_free
		278	};
		279
		280	static int ecb_cold
		281	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		282	{
		283	free (mg->mg_ptr);
		284	mg->mg_obj = 0; /* just in case */
		285
		286	SvREADONLY_off (sv);
		287
		288	if (SvPVX (sv) != mg->mg_ptr)
		289	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		290
		291	SvCUR_set (sv, 0);
		292	SvPVX (sv) = 0;
		293	SvOK_off (sv);
		294
		295	return 0;
		296	}
		297
		298	static MGVTBL sysfree_vtbl = {
		299	0, 0, 0, 0, sysfree_free
		300	};
		301
		302	/*****************************************************************************/
		303
		304	/* helper: set scalar to foreign ptr with custom free */
		305	ecb_noinline
		306	static void
		307	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		308	{
		309	sv_force_normal (sv);
		310
		311	/* we store the length in mg_obj, as namlen is I32 :/ */
		312	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		313	->mg_obj = (SV *)length;
		314
		315	SvUPGRADE (sv, SVt_PV); /* nop... */
		316
		317	if (SvLEN (sv))
		318	Safefree (SvPVX (sv));
		319
		320	SvPVX (sv) = (char *)addr;
		321	SvCUR_set (sv, length);
		322	SvLEN_set (sv, 0);
		323	SvPOK_only (sv);
		324	}
		325
		326	static void
		327	sv_clear_foreign (SV *sv)
		328	{
		329	/* todo: iterate over magic and only free ours, but of course */
		330	/* the perl5porters will call that (correct) behaviour buggy */
		331	sv_unmagic (sv, FOREIGN_MAGIC);
		332	}
		333
		334	/*****************************************************************************/
		335
		336	/* defines all sorts of constants to 0 unless they are already defined */
		337	/* also provides const_iv_ and const_niv_ macros for them */
		338	#include "def0.h"
165		339
166	/*****************************************************************************/	340	/*****************************************************************************/
167		341
168	static void	342	static void
169	fiemap (eio_req *req)	343	fiemap (eio_req *req)
…		…
177	int count = req->int3;	351	int count = req->int3;
178		352
179	req->flags |= EIO_FLAG_PTR1_FREE;	353	req->flags |= EIO_FLAG_PTR1_FREE;
180		354
181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */	355	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
182	/* increase in 3.5kb steps */	356	/* increase in fixed steps */
183	if (count < 0)	357	if (count < 0)
184	count = 8;	358	count = 8;
185		359
186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	360	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
187	errno = ENOMEM;	361	errno = ENOMEM;
…		…
240		414
241	for (count = 0; count < incmap->fm_mapped_extents; ++count)	415	for (count = 0; count < incmap->fm_mapped_extents; ++count)
242	{	416	{
243	struct fiemap_extent *e = incmap->fm_extents + count;	417	struct fiemap_extent *e = incmap->fm_extents + count;
244		418
		419	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		420
245	if (e->fe_logical + e->fe_length >= end_offset)	421	if (e->fe_logical >= end_offset)
246	goto done;	422	goto done;
247
248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249		423
250	if (e->fe_flags & FIEMAP_EXTENT_LAST)	424	if (e->fe_flags & FIEMAP_EXTENT_LAST)
251	goto done;	425	goto done;
252		426
253	}	427	}
…		…
260	errno = ENOSYS;	434	errno = ENOSYS;
261	#endif	435	#endif
262	}	436	}
263		437
264	/*****************************************************************************/	438	/*****************************************************************************/
		439
		440	static int close_fd; /* dummy fd to close fds via dup2 */
		441
		442	#if HAVE_STATX
		443	static struct statx stx;
		444	#define statx_offsetof(member) offsetof (struct statx, member)
		445	#define eio__statx statx
		446	#else
		447	#define statx_offsetof(member) 0
		448	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		449	#endif
265		450
266	enum {	451	enum {
267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	452	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268	};	453	};
269		454
…		…
293	/* read any signals sent by the worker threads */	478	/* read any signals sent by the worker threads */
294	s_epipe_drain (&respipe);	479	s_epipe_drain (&respipe);
295	}	480	}
296		481
297	/* must be called at most once */	482	/* must be called at most once */
		483	ecb_noinline
298	static SV *	484	static SV *
299	req_sv (aio_req req, HV *stash)	485	req_sv (aio_req req, HV *stash)
300	{	486	{
301	if (!req->self)	487	if (!req->self)
302	{	488	{
…		…
311	newSVaio_wd (aio_wd wd)	497	newSVaio_wd (aio_wd wd)
312	{	498	{
313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);	499	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314	}	500	}
315		501
		502	ecb_noinline
316	static aio_req	503	static aio_req
317	SvAIO_REQ (SV *sv)	504	SvAIO_REQ (SV *sv)
318	{	505	{
319	MAGIC *mg;	506	MAGIC *mg;
320		507
…		…
383	FREETMPS;	570	FREETMPS;
384	LEAVE;	571	LEAVE;
385	}	572	}
386	}	573	}
387		574
		575	ecb_noinline
388	static void	576	static void
389	req_submit (eio_req *req)	577	req_submit (eio_req *req)
390	{	578	{
391	eio_submit (req);	579	eio_submit (req);
392		580
…		…
589	SvSETMAGIC (req->sv2);	777	SvSETMAGIC (req->sv2);
590	PUSHs (sv_result);	778	PUSHs (sv_result);
591	}	779	}
592	break;	780	break;
593		781
		782	case EIO_SLURP:
		783	{
		784	if (req->result >= 0)
		785	{
		786	/* if length was originally not known, we steal the malloc'ed memory */
		787	if (req->flags & EIO_FLAG_PTR2_FREE)
		788	{
		789	req->flags &= ~EIO_FLAG_PTR2_FREE;
		790	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		791	}
		792	else
		793	{
		794	SvCUR_set (req->sv2, req->result);
		795	*SvEND (req->sv2) = 0;
		796	SvPOK_only (req->sv2);
		797	}
		798
		799	SvSETMAGIC (req->sv2);
		800	}
		801
		802	PUSHs (sv_result);
		803	}
		804	break;
		805
594	case EIO_CUSTOM:	806	case EIO_CUSTOM:
595	if (req->feed == fiemap)	807	if (req->feed == fiemap)
596	{	808	{
597	#if HAVE_FIEMAP	809	#if HAVE_FIEMAP
598	if (!req->result)	810	if (!req->result)
…		…
629	}	841	}
630	else	842	else
631	PUSHs (sv_result);	843	PUSHs (sv_result);
632	break;	844	break;
633		845
		846	#if 0
		847	case EIO_CLOSE:
		848	PerlIOUnix_refcnt_dec (req->int1);
		849	break;
		850	#endif
		851
634	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	852	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
635	if (req->result > 0)	853	if (req->result > 0)
636	SvIV_set (sv_result, 0);	854	SvIV_set (sv_result, 0);
637	/* FALLTHROUGH */	855	/* FALLTHROUGH */
638		856
…		…
689	grp->sv2 = 0;	907	grp->sv2 = 0;
690		908
691	eio_grp_cancel (grp);	909	eio_grp_cancel (grp);
692	}	910	}
693		911
694	static void ecb_cold	912	ecb_cold
		913	static void
695	create_respipe (void)	914	create_respipe (void)
696	{	915	{
697	if (s_epipe_renew (&respipe))	916	if (s_epipe_renew (&respipe))
698	croak ("IO::AIO: unable to initialize result pipe");	917	croak ("IO::AIO: unable to initialize result pipe");
699	}	918	}
…		…
703	{	922	{
704	while (eio_nreqs ())	923	while (eio_nreqs ())
705	{	924	{
706	int size;	925	int size;
707		926
708	X_LOCK (reslock);	927	X_LOCK (EIO_POOL->reslock);
709	size = res_queue.size;	928	size = EIO_POOL->res_queue.size;
710	X_UNLOCK (reslock);	929	X_UNLOCK (EIO_POOL->reslock);
711		930
712	if (size)	931	if (size)
713	return;	932	return;
714		933
715	etp_maybe_start_thread ();	934	etp_maybe_start_thread (EIO_POOL);
716		935
717	s_epipe_wait (&respipe);	936	s_epipe_wait (&respipe);
718	}	937	}
719	}	938	}
720		939
…		…
733		952
734	poll_wait ();	953	poll_wait ();
735	}	954	}
736	}	955	}
737		956
738	static void ecb_cold	957	ecb_cold
		958	static void
739	reinit (void)	959	reinit (void)
740	{	960	{
741	create_respipe ();	961	create_respipe ();
742		962
743	if (eio_init (want_poll, done_poll) < 0)	963	if (eio_init (want_poll, done_poll) < 0)
744	croak ("IO::AIO: unable to initialise eio library");	964	croak ("IO::AIO: unable to initialise eio library");
745	}	965	}
746		966
747	/*****************************************************************************/	967	/*****************************************************************************/
748		968
749	#if !_POSIX_MAPPED_FILES
750	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
751	# define munmap(addr,length) EIO_ENOSYS ()
752	#endif
753
754	#if !_POSIX_MEMORY_PROTECTION
755	# define mprotect(addr,len,prot) EIO_ENOSYS ()
756	# define PROT_NONE 0
757	# define PROT_WRITE 0
758	# define MAP_PRIVATE 0
759	# define MAP_SHARED 0
760	# define MAP_FIXED 0
761	#endif
762
763	#define MMAP_MAGIC PERL_MAGIC_ext
764
765	static int ecb_cold
766	mmap_free (pTHX_ SV *sv, MAGIC *mg)
767	{
768	int old_errno = errno;
769	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
770	errno = old_errno;
771
772	mg->mg_obj = 0; /* just in case */
773
774	SvREADONLY_off (sv);
775
776	if (SvPVX (sv) != mg->mg_ptr)
777	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
778
779	SvCUR_set (sv, 0);
780	SvPVX (sv) = 0;
781	SvOK_off (sv);
782
783	return 0;
784	}
785
786	static MGVTBL mmap_vtbl = {
787	0, 0, 0, 0, mmap_free
788	};
789
790	/*****************************************************************************/
791
792	static SV *	969	static SV *
793	get_cb (SV *cb_sv)	970	get_cb (SV *cb_sv)
794	{	971	{
795	SvGETMAGIC (cb_sv);	972	SvGETMAGIC (cb_sv);
796	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	973	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797	}	974	}
798		975
		976	ecb_noinline
799	static aio_req ecb_noinline	977	static aio_req ecb_noinline
800	dreq (SV *callback)	978	dreq (SV *callback)
801	{	979	{
802	SV *cb_cv;	980	SV *cb_cv;
803	aio_req req;	981	aio_req req;
…		…
825	SPAGAIN; \	1003	SPAGAIN; \
826	\	1004	\
827	if (GIMME_V != G_VOID) \	1005	if (GIMME_V != G_VOID) \
828	XPUSHs (req_sv (req, aio_req_stash));	1006	XPUSHs (req_sv (req, aio_req_stash));
829		1007
		1008	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
830	ecb_inline void	1009	ecb_inline
		1010	void
831	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	1011	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
832	{	1012	{
833	if (expect_false (SvROK (path)))	1013	if (expect_false (SvROK (path)))
834	{	1014	{
835	SV *rv = SvRV (path);	1015	SV *rv = SvRV (path);
836	SV *wdob;	1016	SV *wdob;
…		…
861		1041
862	*pathsv = newSVsv (path);	1042	*pathsv = newSVsv (path);
863	*ptr = SvPVbyte_nolen (*pathsv);	1043	*ptr = SvPVbyte_nolen (*pathsv);
864	}	1044	}
865		1045
866	static void ecb_noinline	1046	ecb_noinline
		1047	static void
867	req_set_path1 (aio_req req, SV *path)	1048	req_set_path1 (aio_req req, SV *path)
868	{	1049	{
869	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1050	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
870	}	1051	}
871		1052
872	static void ecb_noinline	1053	ecb_noinline
		1054	static void
873	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1055	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
874	{	1056	{
875	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1057	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
876		1058
877	switch (SvTYPE (rv))	1059	switch (SvTYPE (rv))
…		…
889	req_set_path1 (req, fh_or_path);	1071	req_set_path1 (req, fh_or_path);
890	break;	1072	break;
891	}	1073	}
892	}	1074	}
893		1075
		1076	/*****************************************************************************/
		1077
		1078	static void
		1079	ts_set (struct timespec *ts, NV value)
		1080	{
		1081	ts->tv_sec = value;
		1082	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1083	}
		1084
		1085	static NV
		1086	ts_get (const struct timespec *ts)
		1087	{
		1088	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1089	}
		1090
		1091	/*****************************************************************************/
		1092
894	XS(boot_IO__AIO) ecb_cold;	1093	XS(boot_IO__AIO) ecb_cold;
895		1094
896	MODULE = IO::AIO PACKAGE = IO::AIO	1095	MODULE = IO::AIO PACKAGE = IO::AIO
897		1096
898	PROTOTYPES: ENABLE	1097	PROTOTYPES: ENABLE
…		…
905	} *civ, const_iv[] = {	1104	} *civ, const_iv[] = {
906	# define const_niv(name, value) { # name, (IV) value },	1105	# define const_niv(name, value) { # name, (IV) value },
907	# define const_iv(name) { # name, (IV) name },	1106	# define const_iv(name) { # name, (IV) name },
908	# define const_eio(name) { # name, (IV) EIO_ ## name },	1107	# define const_eio(name) { # name, (IV) EIO_ ## name },
909		1108
910	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1109	/* you have to re-run ./gendef0 after adding/removing any constants here */
911		1110	/* the first block can be undef if missing */
912	const_iv (ENOSYS)	1111	const_iv (ENOSYS)
913	const_iv (EXDEV)	1112	const_iv (EXDEV)
914	const_iv (EBADR)	1113	const_iv (EBADR)
		1114
		1115	/* for lseek */
		1116	const_iv (SEEK_DATA)
		1117	const_iv (SEEK_HOLE)
		1118
		1119	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1120	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1121	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1122	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1123	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1124	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1125
		1126	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1127	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1128	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1129	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1130	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1131
		1132	/* the second block will be 0 when missing */
		1133	const_iv (O_ACCMODE)
915		1134
916	const_iv (O_RDONLY)	1135	const_iv (O_RDONLY)
917	const_iv (O_WRONLY)	1136	const_iv (O_WRONLY)
918	const_iv (O_RDWR)	1137	const_iv (O_RDWR)
919	const_iv (O_CREAT)	1138	const_iv (O_CREAT)
…		…
947	const_iv (S_IFDIR)	1166	const_iv (S_IFDIR)
948	const_iv (S_IFWHT)	1167	const_iv (S_IFWHT)
949	const_iv (S_IFSOCK)	1168	const_iv (S_IFSOCK)
950	const_iv (S_IFMT)	1169	const_iv (S_IFMT)
951		1170
952	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964
965	const_iv (ST_RDONLY)	1171	const_iv (ST_RDONLY)
966	const_iv (ST_NOSUID)	1172	const_iv (ST_NOSUID)
967	const_iv (ST_NODEV)	1173	const_iv (ST_NODEV)
968	const_iv (ST_NOEXEC)	1174	const_iv (ST_NOEXEC)
969	const_iv (ST_SYNCHRONOUS)	1175	const_iv (ST_SYNCHRONOUS)
…		…
978	const_iv (PROT_NONE)	1184	const_iv (PROT_NONE)
979	const_iv (PROT_EXEC)	1185	const_iv (PROT_EXEC)
980	const_iv (PROT_READ)	1186	const_iv (PROT_READ)
981	const_iv (PROT_WRITE)	1187	const_iv (PROT_WRITE)
982		1188
983	/*const_iv (MAP_FIXED)*/
984	const_iv (MAP_PRIVATE)	1189	const_iv (MAP_PRIVATE)
985	const_iv (MAP_SHARED)	1190	const_iv (MAP_SHARED)
		1191	const_iv (MAP_FIXED)
986	const_iv (MAP_ANONYMOUS)	1192	const_iv (MAP_ANONYMOUS)
987		1193
988	/* linuxish */	1194	/* linuxish */
989	const_iv (MAP_HUGETLB)
990	const_iv (MAP_LOCKED)	1195	const_iv (MAP_LOCKED)
991	const_iv (MAP_NORESERVE)	1196	const_iv (MAP_NORESERVE)
992	const_iv (MAP_POPULATE)	1197	const_iv (MAP_POPULATE)
993	const_iv (MAP_NONBLOCK)	1198	const_iv (MAP_NONBLOCK)
		1199	const_iv (MAP_GROWSDOWN)
		1200	const_iv (MAP_32BIT)
		1201	const_iv (MAP_HUGETLB)
		1202	const_iv (MAP_STACK)
		1203
		1204	const_iv (MREMAP_MAYMOVE)
		1205	const_iv (MREMAP_FIXED)
		1206
		1207	const_iv (MSG_CMSG_CLOEXEC)
		1208	const_iv (SOCK_CLOEXEC)
		1209
		1210	const_iv (F_DUPFD_CLOEXEC)
		1211
		1212	const_iv (F_ADD_SEALS)
		1213	const_iv (F_GET_SEALS)
		1214	const_iv (F_SEAL_SEAL)
		1215	const_iv (F_SEAL_SHRINK)
		1216	const_iv (F_SEAL_GROW)
		1217	const_iv (F_SEAL_WRITE)
		1218
		1219	const_iv (F_OFD_GETLK)
		1220	const_iv (F_OFD_SETLK)
		1221	const_iv (F_OFD_GETLKW)
		1222
		1223	const_iv (FIFREEZE)
		1224	const_iv (FITHAW)
		1225	const_iv (FITRIM)
		1226	const_iv (FICLONE)
		1227	const_iv (FICLONERANGE)
		1228	const_iv (FIDEDUPERANGE)
		1229
		1230	const_iv (FS_IOC_GETFLAGS)
		1231	const_iv (FS_IOC_SETFLAGS)
		1232	const_iv (FS_IOC_GETVERSION)
		1233	const_iv (FS_IOC_SETVERSION)
		1234	const_iv (FS_IOC_FIEMAP)
		1235	const_iv (FS_IOC_FSGETXATTR)
		1236	const_iv (FS_IOC_FSSETXATTR)
		1237	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1238	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1239	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1240
		1241	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1242
		1243	const_iv (FS_SECRM_FL)
		1244	const_iv (FS_UNRM_FL)
		1245	const_iv (FS_COMPR_FL)
		1246	const_iv (FS_SYNC_FL)
		1247	const_iv (FS_IMMUTABLE_FL)
		1248	const_iv (FS_APPEND_FL)
		1249	const_iv (FS_NODUMP_FL)
		1250	const_iv (FS_NOATIME_FL)
		1251	const_iv (FS_DIRTY_FL)
		1252	const_iv (FS_COMPRBLK_FL)
		1253	const_iv (FS_NOCOMP_FL)
		1254	const_iv (FS_ENCRYPT_FL)
		1255	const_iv (FS_BTREE_FL)
		1256	const_iv (FS_INDEX_FL)
		1257	const_iv (FS_JOURNAL_DATA_FL)
		1258	const_iv (FS_NOTAIL_FL)
		1259	const_iv (FS_DIRSYNC_FL)
		1260	const_iv (FS_TOPDIR_FL)
		1261	const_iv (FS_FL_USER_MODIFIABLE)
		1262
		1263	const_iv (FS_XFLAG_REALTIME)
		1264	const_iv (FS_XFLAG_PREALLOC)
		1265	const_iv (FS_XFLAG_IMMUTABLE)
		1266	const_iv (FS_XFLAG_APPEND)
		1267	const_iv (FS_XFLAG_SYNC)
		1268	const_iv (FS_XFLAG_NOATIME)
		1269	const_iv (FS_XFLAG_NODUMP)
		1270	const_iv (FS_XFLAG_RTINHERIT)
		1271	const_iv (FS_XFLAG_PROJINHERIT)
		1272	const_iv (FS_XFLAG_NOSYMLINKS)
		1273	const_iv (FS_XFLAG_EXTSIZE)
		1274	const_iv (FS_XFLAG_EXTSZINHERIT)
		1275	const_iv (FS_XFLAG_NODEFRAG)
		1276	const_iv (FS_XFLAG_FILESTREAM)
		1277	const_iv (FS_XFLAG_DAX)
		1278	const_iv (FS_XFLAG_HASATTR)
994		1279
995	const_iv (FIEMAP_FLAG_SYNC)	1280	const_iv (FIEMAP_FLAG_SYNC)
996	const_iv (FIEMAP_FLAG_XATTR)	1281	const_iv (FIEMAP_FLAG_XATTR)
997	const_iv (FIEMAP_FLAGS_COMPAT)	1282	const_iv (FIEMAP_FLAGS_COMPAT)
998	const_iv (FIEMAP_EXTENT_LAST)	1283	const_iv (FIEMAP_EXTENT_LAST)
…		…
1010	const_iv (SPLICE_F_MOVE)	1295	const_iv (SPLICE_F_MOVE)
1011	const_iv (SPLICE_F_NONBLOCK)	1296	const_iv (SPLICE_F_NONBLOCK)
1012	const_iv (SPLICE_F_MORE)	1297	const_iv (SPLICE_F_MORE)
1013	const_iv (SPLICE_F_GIFT)	1298	const_iv (SPLICE_F_GIFT)
1014		1299
		1300	const_iv (EFD_CLOEXEC)
		1301	const_iv (EFD_NONBLOCK)
		1302	const_iv (EFD_SEMAPHORE)
		1303
		1304	const_iv (MFD_CLOEXEC)
		1305	const_iv (MFD_ALLOW_SEALING)
		1306	const_iv (MFD_HUGETLB)
		1307
		1308	const_iv (CLOCK_REALTIME)
		1309	const_iv (CLOCK_MONOTONIC)
		1310	const_iv (CLOCK_BOOTTIME)
		1311	const_iv (CLOCK_REALTIME_ALARM)
		1312	const_iv (CLOCK_BOOTTIME_ALARM)
		1313
		1314	const_iv (TFD_NONBLOCK)
		1315	const_iv (TFD_CLOEXEC)
		1316
		1317	const_iv (TFD_TIMER_ABSTIME)
		1318	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1319
		1320	const_iv (STATX_TYPE)
		1321	const_iv (STATX_MODE)
		1322	const_iv (STATX_NLINK)
		1323	const_iv (STATX_UID)
		1324	const_iv (STATX_GID)
		1325	const_iv (STATX_ATIME)
		1326	const_iv (STATX_MTIME)
		1327	const_iv (STATX_CTIME)
		1328	const_iv (STATX_INO)
		1329	const_iv (STATX_SIZE)
		1330	const_iv (STATX_BLOCKS)
		1331	const_iv (STATX_BASIC_STATS)
1015	const_iv (SEEK_DATA)	1332	const_iv (STATX_ALL)
		1333	const_iv (STATX_BTIME)
		1334	const_iv (STATX_ATTR_COMPRESSED)
		1335	const_iv (STATX_ATTR_IMMUTABLE)
		1336	const_iv (STATX_ATTR_APPEND)
		1337	const_iv (STATX_ATTR_NODUMP)
		1338	const_iv (STATX_ATTR_ENCRYPTED)
		1339	const_iv (STATX_ATTR_AUTOMOUNT)
		1340
		1341	const_iv (AT_FDCWD)
		1342	const_iv (AT_SYMLINK_NOFOLLOW)
		1343	const_iv (AT_EACCESS)
		1344	const_iv (AT_REMOVEDIR)
		1345	const_iv (AT_SYMLINK_FOLLOW)
		1346	const_iv (AT_NO_AUTOMOUNT)
		1347	const_iv (AT_EMPTY_PATH)
		1348	const_iv (AT_STATX_SYNC_TYPE)
		1349	const_iv (AT_STATX_AS_STAT)
		1350	const_iv (AT_STATX_FORCE_SYNC)
		1351	const_iv (AT_STATX_DONT_SYNC)
		1352	const_iv (AT_RECURSIVE)
		1353
		1354	const_iv (OPEN_TREE_CLONE)
		1355
		1356	const_iv (FSOPEN_CLOEXEC)
		1357
		1358	const_iv (FSPICK_CLOEXEC)
		1359	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1360	const_iv (FSPICK_NO_AUTOMOUNT)
		1361	const_iv (FSPICK_EMPTY_PATH)
		1362
		1363	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1364	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1365	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1366	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1367	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1368	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1369
		1370	/* waitid */
		1371	const_iv (P_PID)
		1372	const_iv (P_PIDFD)
		1373	const_iv (P_PGID)
1016	const_iv (SEEK_HOLE)	1374	const_iv (P_ALL)
1017		1375
1018	/* libeio constants */	1376	/* these are libeio constants, and are independent of gendef0 */
1019	const_eio (SEEK_SET)	1377	const_eio (SEEK_SET)
1020	const_eio (SEEK_CUR)	1378	const_eio (SEEK_CUR)
1021	const_eio (SEEK_END)	1379	const_eio (SEEK_END)
1022		1380
1023	const_eio (MCL_FUTURE)	1381	const_eio (MCL_FUTURE)
1024	const_eio (MCL_CURRENT)	1382	const_eio (MCL_CURRENT)
		1383	const_eio (MCL_ONFAULT)
1025		1384
1026	const_eio (MS_ASYNC)	1385	const_eio (MS_ASYNC)
1027	const_eio (MS_INVALIDATE)	1386	const_eio (MS_INVALIDATE)
1028	const_eio (MS_SYNC)	1387	const_eio (MS_SYNC)
1029		1388
…		…
1035		1394
1036	const_eio (FALLOC_FL_KEEP_SIZE)	1395	const_eio (FALLOC_FL_KEEP_SIZE)
1037	const_eio (FALLOC_FL_PUNCH_HOLE)	1396	const_eio (FALLOC_FL_PUNCH_HOLE)
1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1397	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039	const_eio (FALLOC_FL_ZERO_RANGE)	1398	const_eio (FALLOC_FL_ZERO_RANGE)
		1399	const_eio (FALLOC_FL_INSERT_RANGE)
		1400	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1401
		1402	const_eio (RENAME_NOREPLACE)
		1403	const_eio (RENAME_EXCHANGE)
		1404	const_eio (RENAME_WHITEOUT)
1040		1405
1041	const_eio (READDIR_DENTS)	1406	const_eio (READDIR_DENTS)
1042	const_eio (READDIR_DIRS_FIRST)	1407	const_eio (READDIR_DIRS_FIRST)
1043	const_eio (READDIR_STAT_ORDER)	1408	const_eio (READDIR_STAT_ORDER)
1044	const_eio (READDIR_FOUND_UNKNOWN)	1409	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1427	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1428	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1064		1429
1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1430	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1066		1431
		1432	/* allocate dummy pipe fd for aio_close */
		1433	{
		1434	int pipefd [2];
		1435
		1436	if (
		1437	#ifdef _WIN32
		1438	_pipe (pipefd, 1, _O_BINARY) < 0
		1439	#else
		1440	pipe (pipefd) < 0
		1441	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1442	#endif
		1443	|| close (pipefd [1]) < 0
		1444	)
		1445	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1446
		1447	close_fd = pipefd [0];
		1448	}
		1449
1067	reinit ();	1450	reinit ();
1068	}	1451	}
1069		1452
1070	void	1453	void
1071	reinit ()	1454	reinit ()
…		…
1193		1576
1194	void	1577	void
1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1578	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196	PPCODE:	1579	PPCODE:
1197	{	1580	{
1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199	int fd = s_fileno_croak (fh, 0);	1581	int fd = s_fileno_croak (fh, 0);
1200	dREQ;	1582	dREQ;
		1583	#if 0
		1584	/* partially duplicate logic in s_fileno */
		1585	SvGETMAGIC (fh);
1201		1586
1202	if (expect_false (close_fd < 0))	1587	if (SvROK (fh))
		1588	{
		1589	fh = SvRV (fh);
		1590	SvGETMAGIC (fh);
		1591	}
		1592
		1593	if (SvTYPE (fh) == SVt_PVGV)
1203	{	1594	{
1204	int pipefd [2];	1595	/* perl filehandle */
		1596	PerlIOUnix_refcnt_inc (fd);
		1597	do_close ((GV *)fh, 1);
1205		1598
1206	if (	1599	req->type = EIO_CLOSE;
1207	#ifdef _WIN32	1600	req->int1 = fd;
1208	_pipe (pipefd, 1, _O_BINARY) < 0	1601	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1209	#else
1210	pipe (pipefd) < 0
1211	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1212	#endif
1213	|| close (pipefd [1]) < 0
1214	)
1215	abort (); /*D*/
1216
1217	close_fd = pipefd [0];
1218	}	1602	}
1219		1603	else
		1604	#endif
		1605	{
		1606	/* fd number */
1220	req->type = EIO_DUP2;	1607	req->type = EIO_DUP2;
1221	req->int1 = close_fd;	1608	req->int1 = close_fd;
1222	req->sv2 = newSVsv (fh);	1609	req->sv2 = newSVsv (fh);
1223	req->int2 = fd;	1610	req->int2 = fd;
		1611	}
1224		1612
1225	REQ_SEND;	1613	REQ_SEND;
1226	}	1614	}
1227		1615
1228	void	1616	void
…		…
1295	REQ_SEND;	1683	REQ_SEND;
1296	}	1684	}
1297	}	1685	}
1298		1686
1299	void	1687	void
		1688	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1689	ALIAS:
		1690	aio_ioctl = EIO_IOCTL
		1691	aio_fcntl = EIO_FCNTL
		1692	PPCODE:
		1693	{
		1694	int fd = s_fileno_croak (fh, 0);
		1695	char *svptr;
		1696
		1697	if (SvPOK (arg) || !SvNIOK (arg))
		1698	{
		1699	STRLEN svlen;
		1700	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1701	#ifdef IOCPARM_LEN
		1702	STRLEN need = IOCPARM_LEN (request);
		1703	#else
		1704	STRLEN need = 256;
		1705	#endif
		1706
		1707	if (svlen < need)
		1708	svptr = SvGROW (arg, need);
		1709	}
		1710	else
		1711	svptr = (char *)SvIV (arg);
		1712
		1713	{
		1714	dREQ;
		1715
		1716	req->type = ix;
		1717	req->sv1 = newSVsv (fh);
		1718	req->int1 = fd;
		1719	req->int2 = (long)request;
		1720	req->sv2 = SvREFCNT_inc (arg);
		1721	req->ptr2 = svptr;
		1722
		1723	REQ_SEND;
		1724	}
		1725	}
		1726
		1727	void
1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1728	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1301	ALIAS:	1729	ALIAS:
1302	aio_readlink = EIO_READLINK	1730	aio_readlink = EIO_READLINK
1303	aio_realpath = EIO_REALPATH	1731	aio_realpath = EIO_REALPATH
1304	PPCODE:	1732	PPCODE:
…		…
1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1787	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1360		1788
1361	REQ_SEND;	1789	REQ_SEND;
1362	}	1790	}
1363		1791
		1792	void
		1793	st_xtime ()
		1794	ALIAS:
		1795	st_atime = 0x01
		1796	st_mtime = 0x02
		1797	st_ctime = 0x04
		1798	st_btime = 0x08
		1799	st_xtime = 0x0f
		1800	PPCODE:
		1801	EXTEND (SP, 4);
		1802	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1803	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1804	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1805	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1806
		1807	void
		1808	st_xtimensec ()
		1809	ALIAS:
		1810	st_atimensec = 0x01
		1811	st_mtimensec = 0x02
		1812	st_ctimensec = 0x04
		1813	st_btimensec = 0x08
		1814	st_xtimensec = 0x0f
		1815	st_btimesec = 0x10
		1816	st_gen = 0x20
		1817	PPCODE:
		1818	EXTEND (SP, 4);
		1819	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1820	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1821	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1822	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1823	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1824	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1825
1364	UV	1826	UV
1365	major (UV dev)	1827	major (UV dev)
1366	ALIAS:	1828	ALIAS:
1367	minor = 1	1829	minor = 1
1368	CODE:	1830	CODE:
1369	RETVAL = ix ? major (dev) : minor (dev);	1831	RETVAL = ix ? minor (dev) : major (dev);
1370	OUTPUT:	1832	OUTPUT:
1371	RETVAL	1833	RETVAL
1372		1834
1373	UV	1835	UV
1374	makedev (UV maj, UV min)	1836	makedev (UV maj, UV min)
…		…
1484	eio_wd wd2 = 0;	1946	eio_wd wd2 = 0;
1485	dREQ;	1947	dREQ;
1486		1948
1487	req->type = ix;	1949	req->type = ix;
1488	req_set_path1 (req, oldpath);	1950	req_set_path1 (req, oldpath);
1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1951	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1952	req->int3 = (long)wd2;
		1953
		1954	REQ_SEND;
		1955	}
		1956
		1957	void
		1958	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1959	PPCODE:
		1960	{
		1961	eio_wd wd2 = 0;
		1962	dREQ;
		1963
		1964	req->type = EIO_RENAME;
		1965	req_set_path1 (req, oldpath);
		1966	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1967	req->int2 = flags;
1490	req->int3 = (long)wd2;	1968	req->int3 = (long)wd2;
1491		1969
1492	REQ_SEND;	1970	REQ_SEND;
1493	}	1971	}
1494		1972
…		…
1505		1983
1506	REQ_SEND;	1984	REQ_SEND;
1507	}	1985	}
1508		1986
1509	void	1987	void
1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1988	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1511	ALIAS:	1989	ALIAS:
1512	aio_mtouch = EIO_MTOUCH	1990	aio_mtouch = EIO_MTOUCH
1513	aio_msync = EIO_MSYNC	1991	aio_msync = EIO_MSYNC
1514	PPCODE:	1992	PPCODE:
1515	{	1993	{
1516	STRLEN svlen;	1994	STRLEN svlen;
1517	char *svptr = SvPVbyte (data, svlen);	1995	char *svptr = SvPVbyte (data, svlen);
1518	UV len = SvUV (length);	1996	UV len = SvUV (length);
		1997
		1998	if (flags < 0)
		1999	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1519		2000
1520	if (offset < 0)	2001	if (offset < 0)
1521	offset += svlen;	2002	offset += svlen;
1522		2003
1523	if (offset < 0 || offset > svlen)	2004	if (offset < 0 || offset > svlen)
…		…
1599	req->int2 = flags;	2080	req->int2 = flags;
1600	req->int3 = SvOK (count) ? SvIV (count) : -1;	2081	req->int3 = SvOK (count) ? SvIV (count) : -1;
1601	#endif	2082	#endif
1602		2083
1603	REQ_SEND;	2084	REQ_SEND;
		2085	}
		2086
		2087	void
		2088	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2089	PPCODE:
		2090	{
		2091	char *svptr = 0;
		2092
		2093	sv_clear_foreign (data);
		2094
		2095	if (length) /* known length, directly read into scalar */
		2096	{
		2097	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2098	svptr = sv_grow (data, length + 1);
		2099	else if (SvCUR (data) < length)
		2100	croak ("length outside of scalar, and cannot grow");
		2101	else
		2102	svptr = SvPVbyte_nolen (data);
		2103	}
		2104
		2105	{
		2106	dREQ;
		2107
		2108	req->type = EIO_SLURP;
		2109	req_set_path1 (req, pathname);
		2110	req->offs = offset;
		2111	req->size = length;
		2112	req->sv2 = SvREFCNT_inc (data);
		2113	req->ptr2 = svptr;
		2114
		2115	if (!SvREADONLY (data))
		2116	{
		2117	SvREADONLY_on (data);
		2118	req->flags |= FLAG_SV2_RO_OFF;
		2119	}
		2120
		2121	REQ_SEND;
		2122	}
1604	}	2123	}
1605		2124
1606	void	2125	void
1607	aio_busy (double delay, SV *callback = &PL_sv_undef)	2126	aio_busy (double delay, SV *callback = &PL_sv_undef)
1608	PPCODE:	2127	PPCODE:
…		…
1745	RETVAL	2264	RETVAL
1746		2265
1747	void	2266	void
1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2267	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749	PPCODE:	2268	PPCODE:
1750	sv_unmagic (scalar, MMAP_MAGIC);	2269	sv_clear_foreign (scalar);
1751	{	2270	{
1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2271	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2272	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754	if (addr == (void *)-1)	2273	if (addr == (void *)-1)
1755	XSRETURN_NO;	2274	XSRETURN_NO;
1756		2275
1757	sv_force_normal (scalar);	2276	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1758
1759	/* we store the length in mg_obj, as namlen is I32 :/ */
1760	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1761	->mg_obj = (SV *)length;
1762
1763	SvUPGRADE (scalar, SVt_PV); /* nop... */
1764		2277
1765	if (!(prot & PROT_WRITE))	2278	if (!(prot & PROT_WRITE))
1766	SvREADONLY_on (scalar);	2279	SvREADONLY_on (scalar);
1767		2280
1768	if (SvLEN (scalar))
1769	Safefree (SvPVX (scalar));
1770
1771	SvPVX (scalar) = (char *)addr;
1772	SvCUR_set (scalar, length);
1773	SvLEN_set (scalar, 0);
1774	SvPOK_only (scalar);
1775
1776	XSRETURN_YES;	2281	XSRETURN_YES;
1777	}	2282	}
1778		2283
1779	void	2284	void
1780	munmap (SV *scalar)	2285	munmap (SV *scalar)
1781	CODE:	2286	CODE:
1782	sv_unmagic (scalar, MMAP_MAGIC);	2287	sv_clear_foreign (scalar);
		2288
		2289	SV *
		2290	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2291	CODE:
		2292	{
		2293	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2294	void *new;
		2295
		2296	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2297	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2298
		2299	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2300
		2301	RETVAL = &PL_sv_no;
		2302
		2303	if (new != (void *)-1)
		2304	{
		2305	RETVAL = new == (void *)mg->mg_ptr
		2306	? newSVpvn ("0 but true", 10)
		2307	: &PL_sv_yes;
		2308
		2309	mg->mg_ptr = (char *)new;
		2310	mg->mg_obj = (SV *)new_length;
		2311
		2312	SvPVX (scalar) = mg->mg_ptr;
		2313	SvCUR_set (scalar, new_length);
		2314	}
		2315	}
		2316	OUTPUT:
		2317	RETVAL
1783		2318
1784	int	2319	int
1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2320	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786	ALIAS:	2321	ALIAS:
1787	mprotect = 1	2322	mprotect = 1
1788	CODE:	2323	CODE:
1789	{	2324	{
1790	STRLEN svlen;	2325	STRLEN svlen;
…		…
1811	}	2346	}
1812	OUTPUT:	2347	OUTPUT:
1813	RETVAL	2348	RETVAL
1814		2349
1815	int	2350	int
1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2351	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1817	CODE:	2352	CODE:
1818	{	2353	{
1819	STRLEN svlen;	2354	STRLEN svlen;
1820	void *addr = SvPVbyte (scalar, svlen);	2355	void *addr = SvPVbyte (scalar, svlen);
1821	size_t len = SvUV (length);	2356	size_t len = SvUV (length);
…		…
1836	#else	2371	#else
1837	RETVAL = EIO_ENOSYS ();	2372	RETVAL = EIO_ENOSYS ();
1838	#endif	2373	#endif
1839	}	2374	}
1840	OUTPUT:	2375	OUTPUT:
		2376	RETVAL
		2377
		2378	int
		2379	mlockall (int flags)
		2380	PROTOTYPE: $;
		2381	CODE:
		2382	RETVAL = eio_mlockall_sync (flags);
		2383	OUTPUT:
1841	RETVAL	2384	RETVAL
1842		2385
1843	int	2386	int
1844	munlockall ()	2387	munlockall ()
1845	CODE:	2388	CODE:
…		…
1850	#endif	2393	#endif
1851	OUTPUT:	2394	OUTPUT:
1852	RETVAL	2395	RETVAL
1853		2396
1854	int	2397	int
		2398	statx (SV8 *pathname, int flags, UV mask)
		2399	CODE:
		2400	{
		2401	/* undocumented, and might go away, and anyway, should use eio_statx */
		2402	SV *wdsv = 0;
		2403	SV *pathsv = 0;
		2404	eio_wd wd = EIO_CWD;
		2405	void *ptr;
		2406	int res;
		2407
		2408	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2409	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2410
		2411	SvREFCNT_dec (pathsv);
		2412	SvREFCNT_dec (wdsv);
		2413	}
		2414	OUTPUT:
		2415	RETVAL
		2416
		2417	U32
		2418	stx_mode ()
		2419	PROTOTYPE:
		2420	CODE:
		2421	#if HAVE_STATX
		2422	RETVAL = stx.stx_mode;
		2423	#else
		2424	XSRETURN_UNDEF;
		2425	#endif
		2426	OUTPUT:
		2427	RETVAL
		2428
		2429	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2430	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2431	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2432	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2433	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2434	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2435	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2436	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2437	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2438	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2439	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2440	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2441	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2442	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2443	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2444	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2445	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2446	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2447
		2448	U32
		2449	stx_mask ()
		2450	PROTOTYPE:
		2451	ALIAS:
		2452	stx_mask = STATX_OFFSET_mask
		2453	stx_blksize = STATX_OFFSET_blksize
		2454	stx_nlink = STATX_OFFSET_nlink
		2455	stx_uid = STATX_OFFSET_uid
		2456	stx_gid = STATX_OFFSET_gid
		2457	stx_rdev_major = STATX_OFFSET_rdev_major
		2458	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2459	stx_dev_major = STATX_OFFSET_dev_major
		2460	stx_dev_minor = STATX_OFFSET_dev_minor
		2461	CODE:
		2462	#if HAVE_STATX
		2463	RETVAL = *(__u32 *)((char *)&stx + ix);
		2464	#else
		2465	XSRETURN_UNDEF;
		2466	#endif
		2467	OUTPUT:
		2468	RETVAL
		2469
		2470	VAL64
		2471	stx_attributes ()
		2472	PROTOTYPE:
		2473	ALIAS:
		2474	stx_attributes = STATX_OFFSET_attributes
		2475	stx_ino = STATX_OFFSET_ino
		2476	stx_size = STATX_OFFSET_size
		2477	stx_blocks = STATX_OFFSET_blocks
		2478	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2479	CODE:
		2480	#if HAVE_STATX
		2481	RETVAL = *(__u64 *)((char *)&stx + ix);
		2482	#else
		2483	XSRETURN_UNDEF;
		2484	#endif
		2485	OUTPUT:
		2486	RETVAL
		2487
		2488	NV
		2489	stx_atime ()
		2490	PROTOTYPE:
		2491	ALIAS:
		2492	stx_atime = STATX_OFFSET_atime
		2493	stx_btime = STATX_OFFSET_btime
		2494	stx_ctime = STATX_OFFSET_ctime
		2495	stx_mtime = STATX_OFFSET_mtime
		2496	CODE:
		2497	#if HAVE_STATX
		2498	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2499	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2500	#else
		2501	XSRETURN_UNDEF;
		2502	#endif
		2503	OUTPUT:
		2504	RETVAL
		2505
		2506	VAL64
		2507	stx_atimesec ()
		2508	PROTOTYPE:
		2509	ALIAS:
		2510	stx_atimesec = STATX_OFFSET_atime
		2511	stx_btimesec = STATX_OFFSET_btime
		2512	stx_ctimesec = STATX_OFFSET_ctime
		2513	stx_mtimesec = STATX_OFFSET_mtime
		2514	CODE:
		2515	#if HAVE_STATX
		2516	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2517	RETVAL = ts->tv_sec;
		2518	#else
		2519	XSRETURN_UNDEF;
		2520	#endif
		2521	OUTPUT:
		2522	RETVAL
		2523
		2524	U32
		2525	stx_atimensec ()
		2526	PROTOTYPE:
		2527	ALIAS:
		2528	stx_atimensec = STATX_OFFSET_atime
		2529	stx_btimensec = STATX_OFFSET_btime
		2530	stx_ctimensec = STATX_OFFSET_ctime
		2531	stx_mtimensec = STATX_OFFSET_mtime
		2532	CODE:
		2533	#if HAVE_STATX
		2534	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2535	RETVAL = ts->tv_nsec;
		2536	#else
		2537	RETVAL = 0;
		2538	#endif
		2539	OUTPUT:
		2540	RETVAL
		2541
		2542	void
		2543	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2544	PPCODE:
		2545	{
		2546	SV *retval;
		2547	#if HAVE_ACCEPT4
		2548	socklen_t salen_ = salen ? salen + 1 : 0;
		2549
		2550	if (salen)
		2551	{
		2552	sv_upgrade (sockaddr, SVt_PV);
		2553	sv_grow (sockaddr, salen_);
		2554	}
		2555
		2556	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2557
		2558	retval = newmortalFH (res, O_RDWR);
		2559
		2560	if (res >= 0 && salen > 0)
		2561	{
		2562	if (salen_ > salen + 1)
		2563	salen_ = salen + 1;
		2564
		2565	SvPOK_only (sockaddr);
		2566	SvCUR_set (sockaddr, salen_);
		2567	}
		2568	#else
		2569	errno = ENOSYS;
		2570	retval = &PL_sv_undef;
		2571	#endif
		2572	XPUSHs (retval);
		2573	}
		2574
		2575	ssize_t
1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2576	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856	CODE:	2577	CODE:
1857	{	2578	{
1858	#if HAVE_LINUX_SPLICE	2579	#if HAVE_LINUX_SPLICE
1859	loff_t off_in_, off_out_;	2580	loff_t off_in_, off_out_;
…		…
1867	#endif	2588	#endif
1868	}	2589	}
1869	OUTPUT:	2590	OUTPUT:
1870	RETVAL	2591	RETVAL
1871		2592
1872	int	2593	ssize_t
1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)	2594	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1874	CODE:	2595	CODE:
1875	#if HAVE_LINUX_SPLICE	2596	#if HAVE_LINUX_SPLICE
1876	RETVAL = tee (rfh, wfh, length, flags);	2597	RETVAL = tee (rfh, wfh, length, flags);
1877	#else	2598	#else
…		…
1917	{	2638	{
1918	EXTEND (SP, 2);	2639	EXTEND (SP, 2);
1919	PUSHs (newmortalFH (fd[0], O_RDONLY));	2640	PUSHs (newmortalFH (fd[0], O_RDONLY));
1920	PUSHs (newmortalFH (fd[1], O_WRONLY));	2641	PUSHs (newmortalFH (fd[1], O_WRONLY));
1921	}	2642	}
		2643	}
		2644
		2645	void
		2646	pidfd_open (int pid, unsigned int flags = 0)
		2647	PPCODE:
		2648	{
		2649	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2650	int fd = syscall (SYS_pidfd_open, pid, flags);
		2651	XPUSHs (newmortalFH (fd, O_RDWR));
		2652	}
		2653
		2654	int
		2655	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2656	PPCODE:
		2657	{
		2658	int res;
		2659	siginfo_t si = { 0 };
		2660
		2661	if (SvOK (siginfo))
		2662	{
		2663	HV *hv;
		2664	SV **svp;
		2665
		2666	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2667	croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
		2668
		2669	hv = (HV *)SvRV (siginfo);
		2670
		2671	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2672	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2673	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2674	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2675	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2676	}
		2677
		2678	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2679	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2680
		2681	XPUSHs (sv_2mortal (newSViv (res)));
		2682	}
		2683
		2684	void
		2685	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2686	PPCODE:
		2687	{
		2688	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2689	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2690	XPUSHs (newmortalFH (fd, O_RDWR));
		2691	}
		2692
		2693	void
		2694	eventfd (unsigned int initval = 0, int flags = 0)
		2695	PPCODE:
		2696	{
		2697	int fd;
		2698	#if HAVE_EVENTFD
		2699	fd = eventfd (initval, flags);
		2700	#else
		2701	fd = (errno = ENOSYS, -1);
		2702	#endif
		2703
		2704	XPUSHs (newmortalFH (fd, O_RDWR));
		2705	}
		2706
		2707	void
		2708	timerfd_create (int clockid, int flags = 0)
		2709	PPCODE:
		2710	{
		2711	int fd;
		2712	#if HAVE_TIMERFD
		2713	fd = timerfd_create (clockid, flags);
		2714	#else
		2715	fd = (errno = ENOSYS, -1);
		2716	#endif
		2717
		2718	XPUSHs (newmortalFH (fd, O_RDWR));
		2719	}
		2720
		2721	void
		2722	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2723	PPCODE:
		2724	{
		2725	int fd = s_fileno_croak (fh, 0);
		2726	#if HAVE_TIMERFD
		2727	int res;
		2728	struct itimerspec its, ots;
		2729
		2730	ts_set (&its.it_interval, interval);
		2731	ts_set (&its.it_value , value);
		2732	res = timerfd_settime (fd, flags, &its, &ots);
		2733
		2734	if (!res)
		2735	{
		2736	EXTEND (SP, 2);
		2737	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2738	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2739	}
		2740	#else
		2741	errno = ENOSYS;
		2742	#endif
		2743	}
		2744
		2745	void
		2746	timerfd_gettime (SV *fh)
		2747	PPCODE:
		2748	{
		2749	int fd = s_fileno_croak (fh, 0);
		2750	#if HAVE_TIMERFD
		2751	int res;
		2752	struct itimerspec ots;
		2753	res = timerfd_gettime (fd, &ots);
		2754
		2755	if (!res)
		2756	{
		2757	EXTEND (SP, 2);
		2758	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2759	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2760	}
		2761	#else
		2762	errno = ENOSYS;
		2763	#endif
		2764	}
		2765
		2766	void
		2767	memfd_create (SV8 *pathname, int flags = 0)
		2768	PPCODE:
		2769	{
		2770	int fd;
		2771	#if HAVE_MEMFD_CREATE
		2772	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2773	#else
		2774	fd = (errno = ENOSYS, -1);
		2775	#endif
		2776
		2777	XPUSHs (newmortalFH (fd, O_RDWR));
		2778	}
		2779
		2780	UV
		2781	get_fdlimit ()
		2782	CODE:
		2783	#if HAVE_RLIMITS
		2784	struct rlimit rl;
		2785	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2786	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2787	#endif
		2788	XSRETURN_UNDEF;
		2789	OUTPUT:
		2790	RETVAL
		2791
		2792	void
		2793	min_fdlimit (UV limit = 0x7fffffffU)
		2794	CODE:
		2795	{
		2796	#if HAVE_RLIMITS
		2797	struct rlimit rl;
		2798	rlim_t orig_rlim_max;
		2799	UV bit;
		2800
		2801	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2802	goto fail;
		2803
		2804	if (rl.rlim_cur == RLIM_INFINITY)
		2805	XSRETURN_YES;
		2806
		2807	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2808
		2809	if (rl.rlim_cur < limit)
		2810	{
		2811	rl.rlim_cur = limit;
		2812
		2813	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2814	rl.rlim_max = rl.rlim_cur;
		2815	}
		2816
		2817	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2818	XSRETURN_YES;
		2819
		2820	if (errno == EPERM)
		2821	{
		2822	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2823	/* our limit overflows a system-wide limit */
		2824	/* try an adaptive algorithm, but do not lower the hardlimit */
		2825	rl.rlim_max = 0;
		2826	for (bit = 0x40000000U; bit; bit >>= 1)
		2827	{
		2828	rl.rlim_max |= bit;
		2829	rl.rlim_cur = rl.rlim_max;
		2830
		2831	/* never decrease the hard limit */
		2832	if (rl.rlim_max < orig_rlim_max)
		2833	break;
		2834
		2835	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2836	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2837	}
		2838
		2839	/* now, raise the soft limit to the max permitted */
		2840	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2841	{
		2842	rl.rlim_cur = rl.rlim_max;
		2843	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2844	errno = EPERM;
		2845	}
		2846	}
		2847	#endif
		2848	fail:
		2849	XSRETURN_UNDEF;
1922	}	2850	}
1923		2851
1924	void _on_next_submit (SV *cb)	2852	void _on_next_submit (SV *cb)
1925	CODE:	2853	CODE:
1926	SvREFCNT_dec (on_next_submit);	2854	SvREFCNT_dec (on_next_submit);

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