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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 1.293 by root, Tue Jul 27 18:46:06 2021 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		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	/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
		233	#ifdef __sun
		234	# undef HAVE_SYSCALL
		235	#endif
		236
		237	#if HAVE_SYSCALL
		238	#include <sys/syscall.h>
		239	#else
		240	# define syscall(nr,...) (errno = ENOSYS, -1)
		241	#endif
		242
		243	/*****************************************************************************/
		244
		245	#if !_POSIX_MAPPED_FILES
		246	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		247	# define munmap(addr,length) EIO_ENOSYS ()
		248	#endif
		249
		250	#if !_POSIX_MEMORY_PROTECTION
		251	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		252	#endif
		253
		254	#if !MREMAP_MAYMOVE
		255	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		256	#endif
		257
		258	#define FOREIGN_MAGIC PERL_MAGIC_ext
		259
		260	static int ecb_cold
		261	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		262	{
		263	int old_errno = errno;
		264	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		265	errno = old_errno;
		266
		267	mg->mg_obj = 0; /* just in case */
		268
		269	SvREADONLY_off (sv);
		270
		271	if (SvPVX (sv) != mg->mg_ptr)
		272	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		273
		274	SvCUR_set (sv, 0);
		275	SvPVX (sv) = 0;
		276	SvOK_off (sv);
		277
		278	return 0;
		279	}
		280
		281	static MGVTBL mmap_vtbl = {
		282	0, 0, 0, 0, mmap_free
		283	};
		284
		285	static int ecb_cold
		286	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		287	{
		288	free (mg->mg_ptr);
		289	mg->mg_obj = 0; /* just in case */
		290
		291	SvREADONLY_off (sv);
		292
		293	if (SvPVX (sv) != mg->mg_ptr)
		294	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		295
		296	SvCUR_set (sv, 0);
		297	SvPVX (sv) = 0;
		298	SvOK_off (sv);
		299
		300	return 0;
		301	}
		302
		303	static MGVTBL sysfree_vtbl = {
		304	0, 0, 0, 0, sysfree_free
		305	};
		306
		307	/*****************************************************************************/
		308
		309	/* helper: set scalar to foreign ptr with custom free */
		310	ecb_noinline
		311	static void
		312	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		313	{
		314	sv_force_normal (sv);
		315
		316	/* we store the length in mg_obj, as namlen is I32 :/ */
		317	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		318	->mg_obj = (SV *)length;
		319
		320	SvUPGRADE (sv, SVt_PV); /* nop... */
		321
		322	if (SvLEN (sv))
		323	Safefree (SvPVX (sv));
		324
		325	SvPVX (sv) = (char *)addr;
		326	SvCUR_set (sv, length);
		327	SvLEN_set (sv, 0);
		328	SvPOK_only (sv);
		329	}
		330
		331	static void
		332	sv_clear_foreign (SV *sv)
		333	{
		334	/* todo: iterate over magic and only free ours, but of course */
		335	/* the perl5porters will call that (correct) behaviour buggy */
		336	sv_unmagic (sv, FOREIGN_MAGIC);
		337	}
		338
		339	/*****************************************************************************/
		340
		341	/* defines all sorts of constants to 0 unless they are already defined */
		342	/* also provides const_iv_ and const_niv_ macros for them */
		343	#include "def0.h"
165		344
166	/*****************************************************************************/	345	/*****************************************************************************/
167		346
168	static void	347	static void
169	fiemap (eio_req *req)	348	fiemap (eio_req *req)
…		…
177	int count = req->int3;	356	int count = req->int3;
178		357
179	req->flags |= EIO_FLAG_PTR1_FREE;	358	req->flags |= EIO_FLAG_PTR1_FREE;
180		359
181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */	360	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
182	/* increase in 3.5kb steps */	361	/* increase in fixed steps */
183	if (count < 0)	362	if (count < 0)
184	count = 8;	363	count = 8;
185		364
186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	365	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
187	errno = ENOMEM;	366	errno = ENOMEM;
…		…
240		419
241	for (count = 0; count < incmap->fm_mapped_extents; ++count)	420	for (count = 0; count < incmap->fm_mapped_extents; ++count)
242	{	421	{
243	struct fiemap_extent *e = incmap->fm_extents + count;	422	struct fiemap_extent *e = incmap->fm_extents + count;
244		423
		424	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		425
245	if (e->fe_logical + e->fe_length >= end_offset)	426	if (e->fe_logical >= end_offset)
246	goto done;	427	goto done;
247
248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249		428
250	if (e->fe_flags & FIEMAP_EXTENT_LAST)	429	if (e->fe_flags & FIEMAP_EXTENT_LAST)
251	goto done;	430	goto done;
252		431
253	}	432	}
…		…
260	errno = ENOSYS;	439	errno = ENOSYS;
261	#endif	440	#endif
262	}	441	}
263		442
264	/*****************************************************************************/	443	/*****************************************************************************/
		444
		445	static int close_fd; /* dummy fd to close fds via dup2 */
		446
		447	#if HAVE_STATX
		448	static struct statx stx;
		449	#define statx_offsetof(member) offsetof (struct statx, member)
		450	#define eio__statx statx
		451	#else
		452	#define statx_offsetof(member) 0
		453	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		454	#endif
265		455
266	enum {	456	enum {
267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	457	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268	};	458	};
269		459
…		…
293	/* read any signals sent by the worker threads */	483	/* read any signals sent by the worker threads */
294	s_epipe_drain (&respipe);	484	s_epipe_drain (&respipe);
295	}	485	}
296		486
297	/* must be called at most once */	487	/* must be called at most once */
		488	ecb_noinline
298	static SV *	489	static SV *
299	req_sv (aio_req req, HV *stash)	490	req_sv (aio_req req, HV *stash)
300	{	491	{
301	if (!req->self)	492	if (!req->self)
302	{	493	{
…		…
311	newSVaio_wd (aio_wd wd)	502	newSVaio_wd (aio_wd wd)
312	{	503	{
313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);	504	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314	}	505	}
315		506
		507	ecb_noinline
316	static aio_req	508	static aio_req
317	SvAIO_REQ (SV *sv)	509	SvAIO_REQ (SV *sv)
318	{	510	{
319	MAGIC *mg;	511	MAGIC *mg;
320		512
…		…
383	FREETMPS;	575	FREETMPS;
384	LEAVE;	576	LEAVE;
385	}	577	}
386	}	578	}
387		579
		580	ecb_noinline
388	static void	581	static void
389	req_submit (eio_req *req)	582	req_submit (eio_req *req)
390	{	583	{
391	eio_submit (req);	584	eio_submit (req);
392		585
…		…
589	SvSETMAGIC (req->sv2);	782	SvSETMAGIC (req->sv2);
590	PUSHs (sv_result);	783	PUSHs (sv_result);
591	}	784	}
592	break;	785	break;
593		786
		787	case EIO_SLURP:
		788	{
		789	if (req->result >= 0)
		790	{
		791	/* if length was originally not known, we steal the malloc'ed memory */
		792	if (req->flags & EIO_FLAG_PTR2_FREE)
		793	{
		794	req->flags &= ~EIO_FLAG_PTR2_FREE;
		795	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		796	}
		797	else
		798	{
		799	SvCUR_set (req->sv2, req->result);
		800	*SvEND (req->sv2) = 0;
		801	SvPOK_only (req->sv2);
		802	}
		803
		804	SvSETMAGIC (req->sv2);
		805	}
		806
		807	PUSHs (sv_result);
		808	}
		809	break;
		810
594	case EIO_CUSTOM:	811	case EIO_CUSTOM:
595	if (req->feed == fiemap)	812	if (req->feed == fiemap)
596	{	813	{
597	#if HAVE_FIEMAP	814	#if HAVE_FIEMAP
598	if (!req->result)	815	if (!req->result)
…		…
629	}	846	}
630	else	847	else
631	PUSHs (sv_result);	848	PUSHs (sv_result);
632	break;	849	break;
633		850
		851	#if 0
		852	case EIO_CLOSE:
		853	PerlIOUnix_refcnt_dec (req->int1);
		854	break;
		855	#endif
		856
634	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	857	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
635	if (req->result > 0)	858	if (req->result > 0)
636	SvIV_set (sv_result, 0);	859	SvIV_set (sv_result, 0);
637	/* FALLTHROUGH */	860	/* FALLTHROUGH */
638		861
…		…
689	grp->sv2 = 0;	912	grp->sv2 = 0;
690		913
691	eio_grp_cancel (grp);	914	eio_grp_cancel (grp);
692	}	915	}
693		916
694	static void ecb_cold	917	ecb_cold
		918	static void
695	create_respipe (void)	919	create_respipe (void)
696	{	920	{
697	if (s_epipe_renew (&respipe))	921	if (s_epipe_renew (&respipe))
698	croak ("IO::AIO: unable to initialize result pipe");	922	croak ("IO::AIO: unable to initialize result pipe");
699	}	923	}
…		…
703	{	927	{
704	while (eio_nreqs ())	928	while (eio_nreqs ())
705	{	929	{
706	int size;	930	int size;
707		931
708	X_LOCK (reslock);	932	X_LOCK (EIO_POOL->reslock);
709	size = res_queue.size;	933	size = EIO_POOL->res_queue.size;
710	X_UNLOCK (reslock);	934	X_UNLOCK (EIO_POOL->reslock);
711		935
712	if (size)	936	if (size)
713	return;	937	return;
714		938
715	etp_maybe_start_thread ();	939	etp_maybe_start_thread (EIO_POOL);
716		940
717	s_epipe_wait (&respipe);	941	s_epipe_wait (&respipe);
718	}	942	}
719	}	943	}
720		944
…		…
733		957
734	poll_wait ();	958	poll_wait ();
735	}	959	}
736	}	960	}
737		961
738	static void ecb_cold	962	ecb_cold
		963	static void
739	reinit (void)	964	reinit (void)
740	{	965	{
741	create_respipe ();	966	create_respipe ();
742		967
743	if (eio_init (want_poll, done_poll) < 0)	968	if (eio_init (want_poll, done_poll) < 0)
744	croak ("IO::AIO: unable to initialise eio library");	969	croak ("IO::AIO: unable to initialise eio library");
745	}	970	}
746		971
747	/*****************************************************************************/	972	/*****************************************************************************/
748		973
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 *	974	static SV *
793	get_cb (SV *cb_sv)	975	get_cb (SV *cb_sv)
794	{	976	{
795	SvGETMAGIC (cb_sv);	977	SvGETMAGIC (cb_sv);
796	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	978	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797	}	979	}
798		980
		981	ecb_noinline
799	static aio_req ecb_noinline	982	static aio_req ecb_noinline
800	dreq (SV *callback)	983	dreq (SV *callback)
801	{	984	{
802	SV *cb_cv;	985	SV *cb_cv;
803	aio_req req;	986	aio_req req;
…		…
825	SPAGAIN; \	1008	SPAGAIN; \
826	\	1009	\
827	if (GIMME_V != G_VOID) \	1010	if (GIMME_V != G_VOID) \
828	XPUSHs (req_sv (req, aio_req_stash));	1011	XPUSHs (req_sv (req, aio_req_stash));
829		1012
		1013	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
830	ecb_inline void	1014	ecb_inline
		1015	void
831	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	1016	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
832	{	1017	{
833	if (expect_false (SvROK (path)))	1018	if (expect_false (SvROK (path)))
834	{	1019	{
835	SV *rv = SvRV (path);	1020	SV *rv = SvRV (path);
836	SV *wdob;	1021	SV *wdob;
…		…
861		1046
862	*pathsv = newSVsv (path);	1047	*pathsv = newSVsv (path);
863	*ptr = SvPVbyte_nolen (*pathsv);	1048	*ptr = SvPVbyte_nolen (*pathsv);
864	}	1049	}
865		1050
866	static void ecb_noinline	1051	ecb_noinline
		1052	static void
867	req_set_path1 (aio_req req, SV *path)	1053	req_set_path1 (aio_req req, SV *path)
868	{	1054	{
869	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1055	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
870	}	1056	}
871		1057
872	static void ecb_noinline	1058	ecb_noinline
		1059	static void
873	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1060	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
874	{	1061	{
875	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1062	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
876		1063
877	switch (SvTYPE (rv))	1064	switch (SvTYPE (rv))
…		…
889	req_set_path1 (req, fh_or_path);	1076	req_set_path1 (req, fh_or_path);
890	break;	1077	break;
891	}	1078	}
892	}	1079	}
893		1080
		1081	/*****************************************************************************/
		1082
		1083	static void
		1084	ts_set (struct timespec *ts, NV value)
		1085	{
		1086	ts->tv_sec = value;
		1087	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1088	}
		1089
		1090	static NV
		1091	ts_get (const struct timespec *ts)
		1092	{
		1093	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1094	}
		1095
		1096	/*****************************************************************************/
		1097
894	XS(boot_IO__AIO) ecb_cold;	1098	XS(boot_IO__AIO) ecb_cold;
895		1099
896	MODULE = IO::AIO PACKAGE = IO::AIO	1100	MODULE = IO::AIO PACKAGE = IO::AIO
897		1101
898	PROTOTYPES: ENABLE	1102	PROTOTYPES: ENABLE
…		…
905	} *civ, const_iv[] = {	1109	} *civ, const_iv[] = {
906	# define const_niv(name, value) { # name, (IV) value },	1110	# define const_niv(name, value) { # name, (IV) value },
907	# define const_iv(name) { # name, (IV) name },	1111	# define const_iv(name) { # name, (IV) name },
908	# define const_eio(name) { # name, (IV) EIO_ ## name },	1112	# define const_eio(name) { # name, (IV) EIO_ ## name },
909		1113
910	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1114	/* you have to re-run ./gendef0 after adding/removing any constants here */
911		1115	/* the first block can be undef if missing */
912	const_iv (ENOSYS)	1116	const_iv (ENOSYS)
913	const_iv (EXDEV)	1117	const_iv (EXDEV)
914	const_iv (EBADR)	1118	const_iv (EBADR)
		1119
		1120	/* for lseek */
		1121	const_iv (SEEK_DATA)
		1122	const_iv (SEEK_HOLE)
		1123
		1124	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1125	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1126	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1127	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1128	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1129	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1130
		1131	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1132	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1133	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1134	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1135	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1136
		1137	/* the second block will be 0 when missing */
		1138	const_iv (O_ACCMODE)
915		1139
916	const_iv (O_RDONLY)	1140	const_iv (O_RDONLY)
917	const_iv (O_WRONLY)	1141	const_iv (O_WRONLY)
918	const_iv (O_RDWR)	1142	const_iv (O_RDWR)
919	const_iv (O_CREAT)	1143	const_iv (O_CREAT)
…		…
947	const_iv (S_IFDIR)	1171	const_iv (S_IFDIR)
948	const_iv (S_IFWHT)	1172	const_iv (S_IFWHT)
949	const_iv (S_IFSOCK)	1173	const_iv (S_IFSOCK)
950	const_iv (S_IFMT)	1174	const_iv (S_IFMT)
951		1175
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)	1176	const_iv (ST_RDONLY)
966	const_iv (ST_NOSUID)	1177	const_iv (ST_NOSUID)
967	const_iv (ST_NODEV)	1178	const_iv (ST_NODEV)
968	const_iv (ST_NOEXEC)	1179	const_iv (ST_NOEXEC)
969	const_iv (ST_SYNCHRONOUS)	1180	const_iv (ST_SYNCHRONOUS)
…		…
978	const_iv (PROT_NONE)	1189	const_iv (PROT_NONE)
979	const_iv (PROT_EXEC)	1190	const_iv (PROT_EXEC)
980	const_iv (PROT_READ)	1191	const_iv (PROT_READ)
981	const_iv (PROT_WRITE)	1192	const_iv (PROT_WRITE)
982		1193
983	/*const_iv (MAP_FIXED)*/
984	const_iv (MAP_PRIVATE)	1194	const_iv (MAP_PRIVATE)
985	const_iv (MAP_SHARED)	1195	const_iv (MAP_SHARED)
		1196	const_iv (MAP_FIXED)
986	const_iv (MAP_ANONYMOUS)	1197	const_iv (MAP_ANONYMOUS)
987		1198
988	/* linuxish */	1199	/* linuxish */
989	const_iv (MAP_HUGETLB)
990	const_iv (MAP_LOCKED)	1200	const_iv (MAP_LOCKED)
991	const_iv (MAP_NORESERVE)	1201	const_iv (MAP_NORESERVE)
992	const_iv (MAP_POPULATE)	1202	const_iv (MAP_POPULATE)
993	const_iv (MAP_NONBLOCK)	1203	const_iv (MAP_NONBLOCK)
		1204	const_iv (MAP_GROWSDOWN)
		1205	const_iv (MAP_32BIT)
		1206	const_iv (MAP_HUGETLB)
		1207	const_iv (MAP_STACK)
		1208	const_iv (MAP_FIXED_NOREPLACE)
		1209	const_iv (MAP_SHARED_VALIDATE)
		1210	const_iv (MAP_SYNC)
		1211	const_iv (MAP_UNINITIALIZED)
		1212
		1213	const_iv (MREMAP_MAYMOVE)
		1214	const_iv (MREMAP_FIXED)
		1215
		1216	const_iv (MSG_CMSG_CLOEXEC)
		1217	const_iv (SOCK_CLOEXEC)
		1218
		1219	const_iv (F_DUPFD_CLOEXEC)
		1220
		1221	const_iv (F_ADD_SEALS)
		1222	const_iv (F_GET_SEALS)
		1223	const_iv (F_SEAL_SEAL)
		1224	const_iv (F_SEAL_SHRINK)
		1225	const_iv (F_SEAL_GROW)
		1226	const_iv (F_SEAL_WRITE)
		1227
		1228	const_iv (F_OFD_GETLK)
		1229	const_iv (F_OFD_SETLK)
		1230	const_iv (F_OFD_GETLKW)
		1231
		1232	const_iv (FIFREEZE)
		1233	const_iv (FITHAW)
		1234	const_iv (FITRIM)
		1235	const_iv (FICLONE)
		1236	const_iv (FICLONERANGE)
		1237	const_iv (FIDEDUPERANGE)
		1238
		1239	const_iv (FS_IOC_GETFLAGS)
		1240	const_iv (FS_IOC_SETFLAGS)
		1241	const_iv (FS_IOC_GETVERSION)
		1242	const_iv (FS_IOC_SETVERSION)
		1243	const_iv (FS_IOC_FIEMAP)
		1244	const_iv (FS_IOC_FSGETXATTR)
		1245	const_iv (FS_IOC_FSSETXATTR)
		1246	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1247	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1248	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1249
		1250	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1251
		1252	const_iv (FS_SECRM_FL)
		1253	const_iv (FS_UNRM_FL)
		1254	const_iv (FS_COMPR_FL)
		1255	const_iv (FS_SYNC_FL)
		1256	const_iv (FS_IMMUTABLE_FL)
		1257	const_iv (FS_APPEND_FL)
		1258	const_iv (FS_NODUMP_FL)
		1259	const_iv (FS_NOATIME_FL)
		1260	const_iv (FS_DIRTY_FL)
		1261	const_iv (FS_COMPRBLK_FL)
		1262	const_iv (FS_NOCOMP_FL)
		1263	const_iv (FS_ENCRYPT_FL)
		1264	const_iv (FS_BTREE_FL)
		1265	const_iv (FS_INDEX_FL)
		1266	const_iv (FS_JOURNAL_DATA_FL)
		1267	const_iv (FS_NOTAIL_FL)
		1268	const_iv (FS_DIRSYNC_FL)
		1269	const_iv (FS_TOPDIR_FL)
		1270	const_iv (FS_FL_USER_MODIFIABLE)
		1271
		1272	const_iv (FS_XFLAG_REALTIME)
		1273	const_iv (FS_XFLAG_PREALLOC)
		1274	const_iv (FS_XFLAG_IMMUTABLE)
		1275	const_iv (FS_XFLAG_APPEND)
		1276	const_iv (FS_XFLAG_SYNC)
		1277	const_iv (FS_XFLAG_NOATIME)
		1278	const_iv (FS_XFLAG_NODUMP)
		1279	const_iv (FS_XFLAG_RTINHERIT)
		1280	const_iv (FS_XFLAG_PROJINHERIT)
		1281	const_iv (FS_XFLAG_NOSYMLINKS)
		1282	const_iv (FS_XFLAG_EXTSIZE)
		1283	const_iv (FS_XFLAG_EXTSZINHERIT)
		1284	const_iv (FS_XFLAG_NODEFRAG)
		1285	const_iv (FS_XFLAG_FILESTREAM)
		1286	const_iv (FS_XFLAG_DAX)
		1287	const_iv (FS_XFLAG_HASATTR)
994		1288
995	const_iv (FIEMAP_FLAG_SYNC)	1289	const_iv (FIEMAP_FLAG_SYNC)
996	const_iv (FIEMAP_FLAG_XATTR)	1290	const_iv (FIEMAP_FLAG_XATTR)
997	const_iv (FIEMAP_FLAGS_COMPAT)	1291	const_iv (FIEMAP_FLAGS_COMPAT)
998	const_iv (FIEMAP_EXTENT_LAST)	1292	const_iv (FIEMAP_EXTENT_LAST)
…		…
1010	const_iv (SPLICE_F_MOVE)	1304	const_iv (SPLICE_F_MOVE)
1011	const_iv (SPLICE_F_NONBLOCK)	1305	const_iv (SPLICE_F_NONBLOCK)
1012	const_iv (SPLICE_F_MORE)	1306	const_iv (SPLICE_F_MORE)
1013	const_iv (SPLICE_F_GIFT)	1307	const_iv (SPLICE_F_GIFT)
1014		1308
		1309	const_iv (EFD_CLOEXEC)
		1310	const_iv (EFD_NONBLOCK)
		1311	const_iv (EFD_SEMAPHORE)
		1312
		1313	const_iv (MFD_CLOEXEC)
		1314	const_iv (MFD_ALLOW_SEALING)
		1315	const_iv (MFD_HUGETLB)
		1316
		1317	const_iv (CLOCK_REALTIME)
		1318	const_iv (CLOCK_MONOTONIC)
		1319	const_iv (CLOCK_BOOTTIME)
		1320	const_iv (CLOCK_REALTIME_ALARM)
		1321	const_iv (CLOCK_BOOTTIME_ALARM)
		1322
		1323	const_iv (TFD_NONBLOCK)
		1324	const_iv (TFD_CLOEXEC)
		1325
		1326	const_iv (TFD_TIMER_ABSTIME)
		1327	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1328
		1329	const_iv (STATX_TYPE)
		1330	const_iv (STATX_MODE)
		1331	const_iv (STATX_NLINK)
		1332	const_iv (STATX_UID)
		1333	const_iv (STATX_GID)
		1334	const_iv (STATX_ATIME)
		1335	const_iv (STATX_MTIME)
		1336	const_iv (STATX_CTIME)
		1337	const_iv (STATX_INO)
		1338	const_iv (STATX_SIZE)
		1339	const_iv (STATX_BLOCKS)
		1340	const_iv (STATX_BASIC_STATS)
1015	const_iv (SEEK_DATA)	1341	const_iv (STATX_ALL)
		1342	const_iv (STATX_BTIME)
		1343	const_iv (STATX_ATTR_COMPRESSED)
		1344	const_iv (STATX_ATTR_IMMUTABLE)
		1345	const_iv (STATX_ATTR_APPEND)
		1346	const_iv (STATX_ATTR_NODUMP)
		1347	const_iv (STATX_ATTR_ENCRYPTED)
		1348	const_iv (STATX_ATTR_AUTOMOUNT)
		1349
		1350	const_iv (AT_FDCWD)
		1351	const_iv (AT_SYMLINK_NOFOLLOW)
		1352	const_iv (AT_EACCESS)
		1353	const_iv (AT_REMOVEDIR)
		1354	const_iv (AT_SYMLINK_FOLLOW)
		1355	const_iv (AT_NO_AUTOMOUNT)
		1356	const_iv (AT_EMPTY_PATH)
		1357	const_iv (AT_STATX_SYNC_TYPE)
		1358	const_iv (AT_STATX_AS_STAT)
		1359	const_iv (AT_STATX_FORCE_SYNC)
		1360	const_iv (AT_STATX_DONT_SYNC)
		1361	const_iv (AT_RECURSIVE)
		1362
		1363	const_iv (OPEN_TREE_CLONE)
		1364
		1365	const_iv (FSOPEN_CLOEXEC)
		1366
		1367	const_iv (FSPICK_CLOEXEC)
		1368	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1369	const_iv (FSPICK_NO_AUTOMOUNT)
		1370	const_iv (FSPICK_EMPTY_PATH)
		1371
		1372	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1373	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1374	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1375	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1376	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1377	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1378
		1379	/* waitid */
		1380	const_iv (P_PID)
		1381	const_iv (P_PIDFD)
		1382	const_iv (P_PGID)
1016	const_iv (SEEK_HOLE)	1383	const_iv (P_ALL)
1017		1384
1018	/* libeio constants */	1385	const_iv (FSCONFIG_SET_FLAG)
		1386	const_iv (FSCONFIG_SET_STRING)
		1387	const_iv (FSCONFIG_SET_BINARY)
		1388	const_iv (FSCONFIG_SET_PATH)
		1389	const_iv (FSCONFIG_SET_PATH_EMPTY)
		1390	const_iv (FSCONFIG_SET_FD)
		1391	const_iv (FSCONFIG_CMD_CREATE)
		1392	const_iv (FSCONFIG_CMD_RECONFIGURE)
		1393
		1394	const_iv (MOUNT_ATTR_RDONLY)
		1395	const_iv (MOUNT_ATTR_NOSUID)
		1396	const_iv (MOUNT_ATTR_NODEV)
		1397	const_iv (MOUNT_ATTR_NOEXEC)
		1398	const_iv (MOUNT_ATTR__ATIME)
		1399	const_iv (MOUNT_ATTR_RELATIME)
		1400	const_iv (MOUNT_ATTR_NOATIME)
		1401	const_iv (MOUNT_ATTR_STRICTATIME)
		1402	const_iv (MOUNT_ATTR_NODIRATIME)
		1403
		1404	/* these are libeio constants, and are independent of gendef0 */
1019	const_eio (SEEK_SET)	1405	const_eio (SEEK_SET)
1020	const_eio (SEEK_CUR)	1406	const_eio (SEEK_CUR)
1021	const_eio (SEEK_END)	1407	const_eio (SEEK_END)
1022		1408
1023	const_eio (MCL_FUTURE)	1409	const_eio (MCL_FUTURE)
1024	const_eio (MCL_CURRENT)	1410	const_eio (MCL_CURRENT)
		1411	const_eio (MCL_ONFAULT)
1025		1412
1026	const_eio (MS_ASYNC)	1413	const_eio (MS_ASYNC)
1027	const_eio (MS_INVALIDATE)	1414	const_eio (MS_INVALIDATE)
1028	const_eio (MS_SYNC)	1415	const_eio (MS_SYNC)
1029		1416
…		…
1035		1422
1036	const_eio (FALLOC_FL_KEEP_SIZE)	1423	const_eio (FALLOC_FL_KEEP_SIZE)
1037	const_eio (FALLOC_FL_PUNCH_HOLE)	1424	const_eio (FALLOC_FL_PUNCH_HOLE)
1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1425	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039	const_eio (FALLOC_FL_ZERO_RANGE)	1426	const_eio (FALLOC_FL_ZERO_RANGE)
		1427	const_eio (FALLOC_FL_INSERT_RANGE)
		1428	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1429
		1430	const_eio (RENAME_NOREPLACE)
		1431	const_eio (RENAME_EXCHANGE)
		1432	const_eio (RENAME_WHITEOUT)
1040		1433
1041	const_eio (READDIR_DENTS)	1434	const_eio (READDIR_DENTS)
1042	const_eio (READDIR_DIRS_FIRST)	1435	const_eio (READDIR_DIRS_FIRST)
1043	const_eio (READDIR_STAT_ORDER)	1436	const_eio (READDIR_STAT_ORDER)
1044	const_eio (READDIR_FOUND_UNKNOWN)	1437	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1455	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1456	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1064		1457
1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1458	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1066		1459
		1460	/* allocate dummy pipe fd for aio_close */
		1461	{
		1462	int pipefd [2];
		1463
		1464	if (
		1465	#ifdef _WIN32
		1466	_pipe (pipefd, 1, _O_BINARY) < 0
		1467	#else
		1468	pipe (pipefd) < 0
		1469	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1470	#endif
		1471	|| close (pipefd [1]) < 0
		1472	)
		1473	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1474
		1475	close_fd = pipefd [0];
		1476	}
		1477
1067	reinit ();	1478	reinit ();
1068	}	1479	}
1069		1480
1070	void	1481	void
1071	reinit ()	1482	reinit ()
…		…
1193		1604
1194	void	1605	void
1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1606	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196	PPCODE:	1607	PPCODE:
1197	{	1608	{
1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199	int fd = s_fileno_croak (fh, 0);	1609	int fd = s_fileno_croak (fh, 0);
1200	dREQ;	1610	dREQ;
		1611	#if 0
		1612	/* partially duplicate logic in s_fileno */
		1613	SvGETMAGIC (fh);
1201		1614
1202	if (expect_false (close_fd < 0))	1615	if (SvROK (fh))
		1616	{
		1617	fh = SvRV (fh);
		1618	SvGETMAGIC (fh);
		1619	}
		1620
		1621	if (SvTYPE (fh) == SVt_PVGV)
1203	{	1622	{
1204	int pipefd [2];	1623	/* perl filehandle */
		1624	PerlIOUnix_refcnt_inc (fd);
		1625	do_close ((GV *)fh, 1);
1205		1626
1206	if (	1627	req->type = EIO_CLOSE;
1207	#ifdef _WIN32	1628	req->int1 = fd;
1208	_pipe (pipefd, 1, _O_BINARY) < 0	1629	/*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	}	1630	}
1219		1631	else
		1632	#endif
		1633	{
		1634	/* fd number */
1220	req->type = EIO_DUP2;	1635	req->type = EIO_DUP2;
1221	req->int1 = close_fd;	1636	req->int1 = close_fd;
1222	req->sv2 = newSVsv (fh);	1637	req->sv2 = newSVsv (fh);
1223	req->int2 = fd;	1638	req->int2 = fd;
		1639	}
1224		1640
1225	REQ_SEND;	1641	REQ_SEND;
1226	}	1642	}
1227		1643
1228	void	1644	void
…		…
1295	REQ_SEND;	1711	REQ_SEND;
1296	}	1712	}
1297	}	1713	}
1298		1714
1299	void	1715	void
		1716	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1717	ALIAS:
		1718	aio_ioctl = EIO_IOCTL
		1719	aio_fcntl = EIO_FCNTL
		1720	PPCODE:
		1721	{
		1722	int fd = s_fileno_croak (fh, 0);
		1723	char *svptr;
		1724
		1725	if (SvPOK (arg) || !SvNIOK (arg))
		1726	{
		1727	STRLEN svlen;
		1728	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1729	#ifdef IOCPARM_LEN
		1730	STRLEN need = IOCPARM_LEN (request);
		1731	#else
		1732	STRLEN need = 256;
		1733	#endif
		1734
		1735	if (svlen < need)
		1736	svptr = SvGROW (arg, need);
		1737	}
		1738	else
		1739	svptr = (char *)SvIV (arg);
		1740
		1741	{
		1742	dREQ;
		1743
		1744	req->type = ix;
		1745	req->sv1 = newSVsv (fh);
		1746	req->int1 = fd;
		1747	req->int2 = (long)request;
		1748	req->sv2 = SvREFCNT_inc (arg);
		1749	req->ptr2 = svptr;
		1750
		1751	REQ_SEND;
		1752	}
		1753	}
		1754
		1755	void
1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1756	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1301	ALIAS:	1757	ALIAS:
1302	aio_readlink = EIO_READLINK	1758	aio_readlink = EIO_READLINK
1303	aio_realpath = EIO_REALPATH	1759	aio_realpath = EIO_REALPATH
1304	PPCODE:	1760	PPCODE:
…		…
1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1815	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1360		1816
1361	REQ_SEND;	1817	REQ_SEND;
1362	}	1818	}
1363		1819
		1820	void
		1821	st_xtime ()
		1822	ALIAS:
		1823	st_atime = 0x01
		1824	st_mtime = 0x02
		1825	st_ctime = 0x04
		1826	st_btime = 0x08
		1827	st_xtime = 0x0f
		1828	PPCODE:
		1829	EXTEND (SP, 4);
		1830	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1831	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1832	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1833	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1834
		1835	void
		1836	st_xtimensec ()
		1837	ALIAS:
		1838	st_atimensec = 0x01
		1839	st_mtimensec = 0x02
		1840	st_ctimensec = 0x04
		1841	st_btimensec = 0x08
		1842	st_xtimensec = 0x0f
		1843	st_btimesec = 0x10
		1844	st_gen = 0x20
		1845	PPCODE:
		1846	EXTEND (SP, 4);
		1847	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1848	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1849	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1850	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1851	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1852	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1853
1364	UV	1854	UV
1365	major (UV dev)	1855	major (UV dev)
1366	ALIAS:	1856	ALIAS:
1367	minor = 1	1857	minor = 1
1368	CODE:	1858	CODE:
1369	RETVAL = ix ? major (dev) : minor (dev);	1859	RETVAL = ix ? minor (dev) : major (dev);
1370	OUTPUT:	1860	OUTPUT:
1371	RETVAL	1861	RETVAL
1372		1862
1373	UV	1863	UV
1374	makedev (UV maj, UV min)	1864	makedev (UV maj, UV min)
…		…
1484	eio_wd wd2 = 0;	1974	eio_wd wd2 = 0;
1485	dREQ;	1975	dREQ;
1486		1976
1487	req->type = ix;	1977	req->type = ix;
1488	req_set_path1 (req, oldpath);	1978	req_set_path1 (req, oldpath);
1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1979	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1980	req->int3 = (long)wd2;
		1981
		1982	REQ_SEND;
		1983	}
		1984
		1985	void
		1986	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1987	PPCODE:
		1988	{
		1989	eio_wd wd2 = 0;
		1990	dREQ;
		1991
		1992	req->type = EIO_RENAME;
		1993	req_set_path1 (req, oldpath);
		1994	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1995	req->int2 = flags;
1490	req->int3 = (long)wd2;	1996	req->int3 = (long)wd2;
1491		1997
1492	REQ_SEND;	1998	REQ_SEND;
1493	}	1999	}
1494		2000
…		…
1505		2011
1506	REQ_SEND;	2012	REQ_SEND;
1507	}	2013	}
1508		2014
1509	void	2015	void
1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	2016	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1511	ALIAS:	2017	ALIAS:
1512	aio_mtouch = EIO_MTOUCH	2018	aio_mtouch = EIO_MTOUCH
1513	aio_msync = EIO_MSYNC	2019	aio_msync = EIO_MSYNC
1514	PPCODE:	2020	PPCODE:
1515	{	2021	{
1516	STRLEN svlen;	2022	STRLEN svlen;
1517	char *svptr = SvPVbyte (data, svlen);	2023	char *svptr = SvPVbyte (data, svlen);
1518	UV len = SvUV (length);	2024	UV len = SvUV (length);
		2025
		2026	if (flags < 0)
		2027	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1519		2028
1520	if (offset < 0)	2029	if (offset < 0)
1521	offset += svlen;	2030	offset += svlen;
1522		2031
1523	if (offset < 0 || offset > svlen)	2032	if (offset < 0 || offset > svlen)
…		…
1599	req->int2 = flags;	2108	req->int2 = flags;
1600	req->int3 = SvOK (count) ? SvIV (count) : -1;	2109	req->int3 = SvOK (count) ? SvIV (count) : -1;
1601	#endif	2110	#endif
1602		2111
1603	REQ_SEND;	2112	REQ_SEND;
		2113	}
		2114
		2115	void
		2116	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2117	PPCODE:
		2118	{
		2119	char *svptr = 0;
		2120
		2121	sv_clear_foreign (data);
		2122
		2123	if (length) /* known length, directly read into scalar */
		2124	{
		2125	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2126	svptr = sv_grow (data, length + 1);
		2127	else if (SvCUR (data) < length)
		2128	croak ("length outside of scalar, and cannot grow");
		2129	else
		2130	svptr = SvPVbyte_nolen (data);
		2131	}
		2132
		2133	{
		2134	dREQ;
		2135
		2136	req->type = EIO_SLURP;
		2137	req_set_path1 (req, pathname);
		2138	req->offs = offset;
		2139	req->size = length;
		2140	req->sv2 = SvREFCNT_inc (data);
		2141	req->ptr2 = svptr;
		2142
		2143	if (!SvREADONLY (data))
		2144	{
		2145	SvREADONLY_on (data);
		2146	req->flags |= FLAG_SV2_RO_OFF;
		2147	}
		2148
		2149	REQ_SEND;
		2150	}
1604	}	2151	}
1605		2152
1606	void	2153	void
1607	aio_busy (double delay, SV *callback = &PL_sv_undef)	2154	aio_busy (double delay, SV *callback = &PL_sv_undef)
1608	PPCODE:	2155	PPCODE:
…		…
1745	RETVAL	2292	RETVAL
1746		2293
1747	void	2294	void
1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2295	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749	PPCODE:	2296	PPCODE:
1750	sv_unmagic (scalar, MMAP_MAGIC);	2297	sv_clear_foreign (scalar);
1751	{	2298	{
1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2299	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2300	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754	if (addr == (void *)-1)	2301	if (addr == (void *)-1)
1755	XSRETURN_NO;	2302	XSRETURN_NO;
1756		2303
1757	sv_force_normal (scalar);	2304	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		2305
1765	if (!(prot & PROT_WRITE))	2306	if (!(prot & PROT_WRITE))
1766	SvREADONLY_on (scalar);	2307	SvREADONLY_on (scalar);
1767		2308
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;	2309	XSRETURN_YES;
1777	}	2310	}
1778		2311
1779	void	2312	void
1780	munmap (SV *scalar)	2313	munmap (SV *scalar)
1781	CODE:	2314	CODE:
1782	sv_unmagic (scalar, MMAP_MAGIC);	2315	sv_clear_foreign (scalar);
		2316
		2317	SV *
		2318	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2319	CODE:
		2320	{
		2321	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2322	void *new;
		2323
		2324	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2325	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2326
		2327	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2328
		2329	RETVAL = &PL_sv_no;
		2330
		2331	if (new != (void *)-1)
		2332	{
		2333	RETVAL = new == (void *)mg->mg_ptr
		2334	? newSVpvn ("0 but true", 10)
		2335	: &PL_sv_yes;
		2336
		2337	mg->mg_ptr = (char *)new;
		2338	mg->mg_obj = (SV *)new_length;
		2339
		2340	SvPVX (scalar) = mg->mg_ptr;
		2341	SvCUR_set (scalar, new_length);
		2342	}
		2343	}
		2344	OUTPUT:
		2345	RETVAL
1783		2346
1784	int	2347	int
1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2348	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786	ALIAS:	2349	ALIAS:
1787	mprotect = 1	2350	mprotect = 1
1788	CODE:	2351	CODE:
1789	{	2352	{
1790	STRLEN svlen;	2353	STRLEN svlen;
…		…
1811	}	2374	}
1812	OUTPUT:	2375	OUTPUT:
1813	RETVAL	2376	RETVAL
1814		2377
1815	int	2378	int
1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2379	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1817	CODE:	2380	CODE:
1818	{	2381	{
1819	STRLEN svlen;	2382	STRLEN svlen;
1820	void *addr = SvPVbyte (scalar, svlen);	2383	void *addr = SvPVbyte (scalar, svlen);
1821	size_t len = SvUV (length);	2384	size_t len = SvUV (length);
…		…
1836	#else	2399	#else
1837	RETVAL = EIO_ENOSYS ();	2400	RETVAL = EIO_ENOSYS ();
1838	#endif	2401	#endif
1839	}	2402	}
1840	OUTPUT:	2403	OUTPUT:
		2404	RETVAL
		2405
		2406	int
		2407	mlockall (int flags)
		2408	PROTOTYPE: $;
		2409	CODE:
		2410	RETVAL = eio_mlockall_sync (flags);
		2411	OUTPUT:
1841	RETVAL	2412	RETVAL
1842		2413
1843	int	2414	int
1844	munlockall ()	2415	munlockall ()
1845	CODE:	2416	CODE:
…		…
1850	#endif	2421	#endif
1851	OUTPUT:	2422	OUTPUT:
1852	RETVAL	2423	RETVAL
1853		2424
1854	int	2425	int
		2426	statx (SV8 *pathname, int flags, UV mask)
		2427	CODE:
		2428	{
		2429	/* undocumented, and might go away, and anyway, should use eio_statx */
		2430	SV *wdsv = 0;
		2431	SV *pathsv = 0;
		2432	eio_wd wd = EIO_CWD;
		2433	void *ptr;
		2434	int res;
		2435
		2436	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2437	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2438
		2439	SvREFCNT_dec (pathsv);
		2440	SvREFCNT_dec (wdsv);
		2441	}
		2442	OUTPUT:
		2443	RETVAL
		2444
		2445	U32
		2446	stx_mode ()
		2447	PROTOTYPE:
		2448	CODE:
		2449	#if HAVE_STATX
		2450	RETVAL = stx.stx_mode;
		2451	#else
		2452	XSRETURN_UNDEF;
		2453	#endif
		2454	OUTPUT:
		2455	RETVAL
		2456
		2457	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2458	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2459	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2460	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2461	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2462	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2463	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2464	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2465	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2466	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2467	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2468	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2469	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2470	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2471	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2472	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2473	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2474	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2475
		2476	U32
		2477	stx_mask ()
		2478	PROTOTYPE:
		2479	ALIAS:
		2480	stx_mask = STATX_OFFSET_mask
		2481	stx_blksize = STATX_OFFSET_blksize
		2482	stx_nlink = STATX_OFFSET_nlink
		2483	stx_uid = STATX_OFFSET_uid
		2484	stx_gid = STATX_OFFSET_gid
		2485	stx_rdev_major = STATX_OFFSET_rdev_major
		2486	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2487	stx_dev_major = STATX_OFFSET_dev_major
		2488	stx_dev_minor = STATX_OFFSET_dev_minor
		2489	CODE:
		2490	#if HAVE_STATX
		2491	RETVAL = *(__u32 *)((char *)&stx + ix);
		2492	#else
		2493	XSRETURN_UNDEF;
		2494	#endif
		2495	OUTPUT:
		2496	RETVAL
		2497
		2498	VAL64
		2499	stx_attributes ()
		2500	PROTOTYPE:
		2501	ALIAS:
		2502	stx_attributes = STATX_OFFSET_attributes
		2503	stx_ino = STATX_OFFSET_ino
		2504	stx_size = STATX_OFFSET_size
		2505	stx_blocks = STATX_OFFSET_blocks
		2506	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2507	CODE:
		2508	#if HAVE_STATX
		2509	RETVAL = *(__u64 *)((char *)&stx + ix);
		2510	#else
		2511	XSRETURN_UNDEF;
		2512	#endif
		2513	OUTPUT:
		2514	RETVAL
		2515
		2516	NV
		2517	stx_atime ()
		2518	PROTOTYPE:
		2519	ALIAS:
		2520	stx_atime = STATX_OFFSET_atime
		2521	stx_btime = STATX_OFFSET_btime
		2522	stx_ctime = STATX_OFFSET_ctime
		2523	stx_mtime = STATX_OFFSET_mtime
		2524	CODE:
		2525	#if HAVE_STATX
		2526	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2527	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2528	#else
		2529	XSRETURN_UNDEF;
		2530	#endif
		2531	OUTPUT:
		2532	RETVAL
		2533
		2534	VAL64
		2535	stx_atimesec ()
		2536	PROTOTYPE:
		2537	ALIAS:
		2538	stx_atimesec = STATX_OFFSET_atime
		2539	stx_btimesec = STATX_OFFSET_btime
		2540	stx_ctimesec = STATX_OFFSET_ctime
		2541	stx_mtimesec = STATX_OFFSET_mtime
		2542	CODE:
		2543	#if HAVE_STATX
		2544	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2545	RETVAL = ts->tv_sec;
		2546	#else
		2547	XSRETURN_UNDEF;
		2548	#endif
		2549	OUTPUT:
		2550	RETVAL
		2551
		2552	U32
		2553	stx_atimensec ()
		2554	PROTOTYPE:
		2555	ALIAS:
		2556	stx_atimensec = STATX_OFFSET_atime
		2557	stx_btimensec = STATX_OFFSET_btime
		2558	stx_ctimensec = STATX_OFFSET_ctime
		2559	stx_mtimensec = STATX_OFFSET_mtime
		2560	CODE:
		2561	#if HAVE_STATX
		2562	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2563	RETVAL = ts->tv_nsec;
		2564	#else
		2565	RETVAL = 0;
		2566	#endif
		2567	OUTPUT:
		2568	RETVAL
		2569
		2570	void
		2571	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2572	PPCODE:
		2573	{
		2574	SV *retval;
		2575	#if HAVE_ACCEPT4
		2576	socklen_t salen_ = salen ? salen + 1 : 0;
		2577
		2578	if (salen)
		2579	{
		2580	sv_upgrade (sockaddr, SVt_PV);
		2581	sv_grow (sockaddr, salen_);
		2582	}
		2583
		2584	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2585
		2586	retval = newmortalFH (res, O_RDWR);
		2587
		2588	if (res >= 0 && salen > 0)
		2589	{
		2590	if (salen_ > salen + 1)
		2591	salen_ = salen + 1;
		2592
		2593	SvPOK_only (sockaddr);
		2594	SvCUR_set (sockaddr, salen_);
		2595	}
		2596	#else
		2597	errno = ENOSYS;
		2598	retval = &PL_sv_undef;
		2599	#endif
		2600	XPUSHs (retval);
		2601	}
		2602
		2603	ssize_t
1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2604	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856	CODE:	2605	CODE:
1857	{	2606	{
1858	#if HAVE_LINUX_SPLICE	2607	#if HAVE_LINUX_SPLICE
1859	loff_t off_in_, off_out_;	2608	loff_t off_in_, off_out_;
…		…
1867	#endif	2616	#endif
1868	}	2617	}
1869	OUTPUT:	2618	OUTPUT:
1870	RETVAL	2619	RETVAL
1871		2620
1872	int	2621	ssize_t
1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)	2622	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1874	CODE:	2623	CODE:
1875	#if HAVE_LINUX_SPLICE	2624	#if HAVE_LINUX_SPLICE
1876	RETVAL = tee (rfh, wfh, length, flags);	2625	RETVAL = tee (rfh, wfh, length, flags);
1877	#else	2626	#else
…		…
1917	{	2666	{
1918	EXTEND (SP, 2);	2667	EXTEND (SP, 2);
1919	PUSHs (newmortalFH (fd[0], O_RDONLY));	2668	PUSHs (newmortalFH (fd[0], O_RDONLY));
1920	PUSHs (newmortalFH (fd[1], O_WRONLY));	2669	PUSHs (newmortalFH (fd[1], O_WRONLY));
1921	}	2670	}
		2671	}
		2672
		2673	void
		2674	pidfd_open (int pid, unsigned int flags = 0)
		2675	PPCODE:
		2676	{
		2677	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2678	int fd = syscall (SYS_pidfd_open, pid, flags);
		2679	XPUSHs (newmortalFH (fd, O_RDWR));
		2680	}
		2681
		2682	int
		2683	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2684	PPCODE:
		2685	{
		2686	int res;
		2687	#if HAVE_SIGINFO_T
		2688	siginfo_t si = { 0 };
		2689
		2690	if (SvOK (siginfo))
		2691	{
		2692	HV *hv;
		2693	SV **svp;
		2694
		2695	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2696	croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
		2697
		2698	hv = (HV *)SvRV (siginfo);
		2699
		2700	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2701	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2702	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2703	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2704	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2705	}
		2706
		2707	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2708	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2709	#else
		2710	res = (errno = ENOSYS, -1);
		2711	#endif
		2712
		2713	XPUSHs (sv_2mortal (newSViv (res)));
		2714	}
		2715
		2716	void
		2717	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2718	PPCODE:
		2719	{
		2720	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2721	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2722	XPUSHs (newmortalFH (fd, O_RDWR));
		2723	}
		2724
		2725	void
		2726	eventfd (unsigned int initval = 0, int flags = 0)
		2727	PPCODE:
		2728	{
		2729	int fd;
		2730	#if HAVE_EVENTFD
		2731	fd = eventfd (initval, flags);
		2732	#else
		2733	fd = (errno = ENOSYS, -1);
		2734	#endif
		2735
		2736	XPUSHs (newmortalFH (fd, O_RDWR));
		2737	}
		2738
		2739	void
		2740	timerfd_create (int clockid, int flags = 0)
		2741	PPCODE:
		2742	{
		2743	int fd;
		2744	#if HAVE_TIMERFD
		2745	fd = timerfd_create (clockid, flags);
		2746	#else
		2747	fd = (errno = ENOSYS, -1);
		2748	#endif
		2749
		2750	XPUSHs (newmortalFH (fd, O_RDWR));
		2751	}
		2752
		2753	void
		2754	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2755	PPCODE:
		2756	{
		2757	int fd = s_fileno_croak (fh, 0);
		2758	#if HAVE_TIMERFD
		2759	int res;
		2760	struct itimerspec its, ots;
		2761
		2762	ts_set (&its.it_interval, interval);
		2763	ts_set (&its.it_value , value);
		2764	res = timerfd_settime (fd, flags, &its, &ots);
		2765
		2766	if (!res)
		2767	{
		2768	EXTEND (SP, 2);
		2769	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2770	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2771	}
		2772	#else
		2773	errno = ENOSYS;
		2774	#endif
		2775	}
		2776
		2777	void
		2778	timerfd_gettime (SV *fh)
		2779	PPCODE:
		2780	{
		2781	int fd = s_fileno_croak (fh, 0);
		2782	#if HAVE_TIMERFD
		2783	int res;
		2784	struct itimerspec ots;
		2785	res = timerfd_gettime (fd, &ots);
		2786
		2787	if (!res)
		2788	{
		2789	EXTEND (SP, 2);
		2790	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2791	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2792	}
		2793	#else
		2794	errno = ENOSYS;
		2795	#endif
		2796	}
		2797
		2798	void
		2799	memfd_create (SV8 *pathname, int flags = 0)
		2800	PPCODE:
		2801	{
		2802	int fd;
		2803	#if HAVE_MEMFD_CREATE
		2804	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2805	#else
		2806	fd = (errno = ENOSYS, -1);
		2807	#endif
		2808
		2809	XPUSHs (newmortalFH (fd, O_RDWR));
		2810	}
		2811
		2812	UV
		2813	get_fdlimit ()
		2814	CODE:
		2815	#if HAVE_RLIMITS
		2816	struct rlimit rl;
		2817	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2818	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2819	#endif
		2820	XSRETURN_UNDEF;
		2821	OUTPUT:
		2822	RETVAL
		2823
		2824	void
		2825	min_fdlimit (UV limit = 0x7fffffffU)
		2826	CODE:
		2827	{
		2828	#if HAVE_RLIMITS
		2829	struct rlimit rl;
		2830	rlim_t orig_rlim_max;
		2831	UV bit;
		2832
		2833	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2834	goto fail;
		2835
		2836	if (rl.rlim_cur == RLIM_INFINITY)
		2837	XSRETURN_YES;
		2838
		2839	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2840
		2841	if (rl.rlim_cur < limit)
		2842	{
		2843	rl.rlim_cur = limit;
		2844
		2845	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2846	rl.rlim_max = rl.rlim_cur;
		2847	}
		2848
		2849	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2850	XSRETURN_YES;
		2851
		2852	if (errno == EPERM)
		2853	{
		2854	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2855	/* our limit overflows a system-wide limit */
		2856	/* try an adaptive algorithm, but do not lower the hardlimit */
		2857	rl.rlim_max = 0;
		2858	for (bit = 0x40000000U; bit; bit >>= 1)
		2859	{
		2860	rl.rlim_max |= bit;
		2861	rl.rlim_cur = rl.rlim_max;
		2862
		2863	/* never decrease the hard limit */
		2864	if (rl.rlim_max < orig_rlim_max)
		2865	break;
		2866
		2867	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2868	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2869	}
		2870
		2871	/* now, raise the soft limit to the max permitted */
		2872	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2873	{
		2874	rl.rlim_cur = rl.rlim_max;
		2875	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2876	errno = EPERM;
		2877	}
		2878	}
		2879	#endif
		2880	fail:
		2881	XSRETURN_UNDEF;
1922	}	2882	}
1923		2883
1924	void _on_next_submit (SV *cb)	2884	void _on_next_submit (SV *cb)
1925	CODE:	2885	CODE:
1926	SvREFCNT_dec (on_next_submit);	2886	SvREFCNT_dec (on_next_submit);

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