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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC vs.
Revision 1.295 by root, Mon Sep 5 00:03:32 2022 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
		213	#ifndef makedev
		214	# define makedev(maj,min) (((maj) << 8) | (min))
		215	#endif
		216	#ifndef major
		217	# define major(dev) ((dev) >> 8)
		218	#endif
		219	#ifndef minor
		220	# define minor(dev) ((dev) & 0xff)
		221	#endif
		222
		223	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		224	#ifdef __sun
		225	# undef PAGESIZE
		226	#endif
		227
		228	#if PAGESIZE <= 0
		229	# define PAGESIZE sysconf (_SC_PAGESIZE)
		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
149	/* defines all sorts of constants to 0 unless they are already defined */	341	/* defines all sorts of constants to 0 unless they are already defined */
150	/* also provides const_iv_ and const_niv_ macros for them */	342	/* also provides const_iv_ and const_niv_ macros for them */
151	#include "def0.h"	343	#include "def0.h"
152
153	#ifndef makedev
154	# define makedev(maj,min) (((maj) << 8) | (min))
155	#endif
156	#ifndef major
157	# define major(dev) ((dev) >> 8)
158	#endif
159	#ifndef minor
160	# define minor(dev) ((dev) & 0xff)
161	#endif
162
163	#if PAGESIZE <= 0
164	# define PAGESIZE sysconf (_SC_PAGESIZE)
165	#endif
166		344
167	/*****************************************************************************/	345	/*****************************************************************************/
168		346
169	static void	347	static void
170	fiemap (eio_req *req)	348	fiemap (eio_req *req)
…		…
178	int count = req->int3;	356	int count = req->int3;
179		357
180	req->flags |= EIO_FLAG_PTR1_FREE;	358	req->flags |= EIO_FLAG_PTR1_FREE;
181		359
182	/* 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, */
183	/* increase in 3.5kb steps */	361	/* increase in fixed steps */
184	if (count < 0)	362	if (count < 0)
185	count = 8;	363	count = 8;
186		364
187	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	365	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
188	errno = ENOMEM;	366	errno = ENOMEM;
…		…
241		419
242	for (count = 0; count < incmap->fm_mapped_extents; ++count)	420	for (count = 0; count < incmap->fm_mapped_extents; ++count)
243	{	421	{
244	struct fiemap_extent *e = incmap->fm_extents + count;	422	struct fiemap_extent *e = incmap->fm_extents + count;
245		423
		424	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		425
246	if (e->fe_logical + e->fe_length >= end_offset)	426	if (e->fe_logical >= end_offset)
247	goto done;	427	goto done;
248
249	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
250		428
251	if (e->fe_flags & FIEMAP_EXTENT_LAST)	429	if (e->fe_flags & FIEMAP_EXTENT_LAST)
252	goto done;	430	goto done;
253		431
254	}	432	}
…		…
261	errno = ENOSYS;	439	errno = ENOSYS;
262	#endif	440	#endif
263	}	441	}
264		442
265	/*****************************************************************************/	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
266		455
267	enum {	456	enum {
268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	457	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
269	};	458	};
270		459
…		…
294	/* read any signals sent by the worker threads */	483	/* read any signals sent by the worker threads */
295	s_epipe_drain (&respipe);	484	s_epipe_drain (&respipe);
296	}	485	}
297		486
298	/* must be called at most once */	487	/* must be called at most once */
		488	ecb_noinline
299	static SV *	489	static SV *
300	req_sv (aio_req req, HV *stash)	490	req_sv (aio_req req, HV *stash)
301	{	491	{
302	if (!req->self)	492	if (!req->self)
303	{	493	{
…		…
312	newSVaio_wd (aio_wd wd)	502	newSVaio_wd (aio_wd wd)
313	{	503	{
314	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);
315	}	505	}
316		506
		507	ecb_noinline
317	static aio_req	508	static aio_req
318	SvAIO_REQ (SV *sv)	509	SvAIO_REQ (SV *sv)
319	{	510	{
320	MAGIC *mg;	511	MAGIC *mg;
321		512
…		…
384	FREETMPS;	575	FREETMPS;
385	LEAVE;	576	LEAVE;
386	}	577	}
387	}	578	}
388		579
		580	ecb_noinline
389	static void	581	static void
390	req_submit (eio_req *req)	582	req_submit (eio_req *req)
391	{	583	{
392	eio_submit (req);	584	eio_submit (req);
393		585
…		…
590	SvSETMAGIC (req->sv2);	782	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	783	PUSHs (sv_result);
592	}	784	}
593	break;	785	break;
594		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
595	case EIO_CUSTOM:	811	case EIO_CUSTOM:
596	if (req->feed == fiemap)	812	if (req->feed == fiemap)
597	{	813	{
598	#if HAVE_FIEMAP	814	#if HAVE_FIEMAP
599	if (!req->result)	815	if (!req->result)
…		…
630	}	846	}
631	else	847	else
632	PUSHs (sv_result);	848	PUSHs (sv_result);
633	break;	849	break;
634		850
		851	#if 0
		852	case EIO_CLOSE:
		853	PerlIOUnix_refcnt_dec (req->int1);
		854	break;
		855	#endif
		856
635	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 */
636	if (req->result > 0)	858	if (req->result > 0)
637	SvIV_set (sv_result, 0);	859	SvIV_set (sv_result, 0);
638	/* FALLTHROUGH */	860	/* FALLTHROUGH */
639		861
…		…
690	grp->sv2 = 0;	912	grp->sv2 = 0;
691		913
692	eio_grp_cancel (grp);	914	eio_grp_cancel (grp);
693	}	915	}
694		916
695	static void ecb_cold	917	ecb_cold
		918	static void
696	create_respipe (void)	919	create_respipe (void)
697	{	920	{
698	if (s_epipe_renew (&respipe))	921	if (s_epipe_renew (&respipe))
699	croak ("IO::AIO: unable to initialize result pipe");	922	croak ("IO::AIO: unable to initialize result pipe");
700	}	923	}
…		…
734		957
735	poll_wait ();	958	poll_wait ();
736	}	959	}
737	}	960	}
738		961
739	static void ecb_cold	962	ecb_cold
		963	static void
740	reinit (void)	964	reinit (void)
741	{	965	{
742	create_respipe ();	966	create_respipe ();
743		967
744	if (eio_init (want_poll, done_poll) < 0)	968	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	969	croak ("IO::AIO: unable to initialise eio library");
746	}	970	}
747		971
748	/*****************************************************************************/	972	/*****************************************************************************/
749		973
750	#if !_POSIX_MAPPED_FILES
751	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752	# define munmap(addr,length) EIO_ENOSYS ()
753	#endif
754
755	#if !_POSIX_MEMORY_PROTECTION
756	# define mprotect(addr,len,prot) EIO_ENOSYS ()
757	#endif
758
759	#define MMAP_MAGIC PERL_MAGIC_ext
760
761	static int ecb_cold
762	mmap_free (pTHX_ SV *sv, MAGIC *mg)
763	{
764	int old_errno = errno;
765	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766	errno = old_errno;
767
768	mg->mg_obj = 0; /* just in case */
769
770	SvREADONLY_off (sv);
771
772	if (SvPVX (sv) != mg->mg_ptr)
773	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775	SvCUR_set (sv, 0);
776	SvPVX (sv) = 0;
777	SvOK_off (sv);
778
779	return 0;
780	}
781
782	static MGVTBL mmap_vtbl = {
783	0, 0, 0, 0, mmap_free
784	};
785
786	/*****************************************************************************/
787
788	static SV *	974	static SV *
789	get_cb (SV *cb_sv)	975	get_cb (SV *cb_sv)
790	{	976	{
791	SvGETMAGIC (cb_sv);	977	SvGETMAGIC (cb_sv);
792	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	978	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793	}	979	}
794		980
		981	ecb_noinline
795	static aio_req ecb_noinline	982	static aio_req ecb_noinline
796	dreq (SV *callback)	983	dreq (SV *callback)
797	{	984	{
798	SV *cb_cv;	985	SV *cb_cv;
799	aio_req req;	986	aio_req req;
…		…
821	SPAGAIN; \	1008	SPAGAIN; \
822	\	1009	\
823	if (GIMME_V != G_VOID) \	1010	if (GIMME_V != G_VOID) \
824	XPUSHs (req_sv (req, aio_req_stash));	1011	XPUSHs (req_sv (req, aio_req_stash));
825		1012
		1013	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
826	ecb_inline void	1014	ecb_inline
		1015	void
827	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)
828	{	1017	{
829	if (expect_false (SvROK (path)))	1018	if (expect_false (SvROK (path)))
830	{	1019	{
831	SV *rv = SvRV (path);	1020	SV *rv = SvRV (path);
832	SV *wdob;	1021	SV *wdob;
…		…
857		1046
858	*pathsv = newSVsv (path);	1047	*pathsv = newSVsv (path);
859	*ptr = SvPVbyte_nolen (*pathsv);	1048	*ptr = SvPVbyte_nolen (*pathsv);
860	}	1049	}
861		1050
862	static void ecb_noinline	1051	ecb_noinline
		1052	static void
863	req_set_path1 (aio_req req, SV *path)	1053	req_set_path1 (aio_req req, SV *path)
864	{	1054	{
865	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);
866	}	1056	}
867		1057
868	static void ecb_noinline	1058	ecb_noinline
		1059	static void
869	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)
870	{	1061	{
871	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;
872		1063
873	switch (SvTYPE (rv))	1064	switch (SvTYPE (rv))
…		…
885	req_set_path1 (req, fh_or_path);	1076	req_set_path1 (req, fh_or_path);
886	break;	1077	break;
887	}	1078	}
888	}	1079	}
889		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
		1098	/* extract a ref-to-array of strings into a temporary c style string vector */
		1099	static char **
		1100	extract_stringvec (SV *sv, const char *croakmsg)
		1101	{
		1102	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
		1103	croak (croakmsg);
		1104
		1105	AV *av = (AV *)SvRV (sv);
		1106	int i, nelem = av_len (av) + 1;
		1107	char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
		1108
		1109	for (i = 0; i < nelem; ++i)
		1110	{
		1111	SV **e = av_fetch (av, i, 0);
		1112
		1113	if (e && *e)
		1114	vecp[i] = SvPVbyte_nolen (*e);
		1115	else
		1116	vecp[i] = "";
		1117	}
		1118
		1119	vecp[nelem] = 0;
		1120
		1121	return vecp;
		1122	}
		1123
		1124	/*****************************************************************************/
		1125
890	XS(boot_IO__AIO) ecb_cold;	1126	XS(boot_IO__AIO) ecb_cold;
891		1127
892	MODULE = IO::AIO PACKAGE = IO::AIO	1128	MODULE = IO::AIO PACKAGE = IO::AIO
893		1129
894	PROTOTYPES: ENABLE	1130	PROTOTYPES: ENABLE
…		…
925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1161	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1162	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1163	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928		1164
929	/* the second block will be 0 when missing */	1165	/* the second block will be 0 when missing */
		1166	const_iv (O_ACCMODE)
		1167
930	const_iv (O_RDONLY)	1168	const_iv (O_RDONLY)
931	const_iv (O_WRONLY)	1169	const_iv (O_WRONLY)
932	const_iv (O_RDWR)	1170	const_iv (O_RDWR)
933	const_iv (O_CREAT)	1171	const_iv (O_CREAT)
934	const_iv (O_TRUNC)	1172	const_iv (O_TRUNC)
…		…
993	const_iv (MAP_NONBLOCK)	1231	const_iv (MAP_NONBLOCK)
994	const_iv (MAP_GROWSDOWN)	1232	const_iv (MAP_GROWSDOWN)
995	const_iv (MAP_32BIT)	1233	const_iv (MAP_32BIT)
996	const_iv (MAP_HUGETLB)	1234	const_iv (MAP_HUGETLB)
997	const_iv (MAP_STACK)	1235	const_iv (MAP_STACK)
		1236	const_iv (MAP_FIXED_NOREPLACE)
		1237	const_iv (MAP_SHARED_VALIDATE)
		1238	const_iv (MAP_SYNC)
		1239	const_iv (MAP_UNINITIALIZED)
		1240
		1241	const_iv (MREMAP_MAYMOVE)
		1242	const_iv (MREMAP_FIXED)
		1243
		1244	const_iv (MSG_CMSG_CLOEXEC)
		1245	const_iv (SOCK_CLOEXEC)
		1246
		1247	const_iv (F_DUPFD_CLOEXEC)
		1248
		1249	const_iv (F_ADD_SEALS)
		1250	const_iv (F_GET_SEALS)
		1251	const_iv (F_SEAL_SEAL)
		1252	const_iv (F_SEAL_SHRINK)
		1253	const_iv (F_SEAL_GROW)
		1254	const_iv (F_SEAL_WRITE)
		1255
		1256	const_iv (F_OFD_GETLK)
		1257	const_iv (F_OFD_SETLK)
		1258	const_iv (F_OFD_GETLKW)
		1259
		1260	const_iv (FIFREEZE)
		1261	const_iv (FITHAW)
		1262	const_iv (FITRIM)
		1263	const_iv (FICLONE)
		1264	const_iv (FICLONERANGE)
		1265	const_iv (FIDEDUPERANGE)
		1266
		1267	const_iv (FS_IOC_GETFLAGS)
		1268	const_iv (FS_IOC_SETFLAGS)
		1269	const_iv (FS_IOC_GETVERSION)
		1270	const_iv (FS_IOC_SETVERSION)
		1271	const_iv (FS_IOC_FIEMAP)
		1272	const_iv (FS_IOC_FSGETXATTR)
		1273	const_iv (FS_IOC_FSSETXATTR)
		1274	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1275	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1276	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1277
		1278	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1279
		1280	const_iv (FS_SECRM_FL)
		1281	const_iv (FS_UNRM_FL)
		1282	const_iv (FS_COMPR_FL)
		1283	const_iv (FS_SYNC_FL)
		1284	const_iv (FS_IMMUTABLE_FL)
		1285	const_iv (FS_APPEND_FL)
		1286	const_iv (FS_NODUMP_FL)
		1287	const_iv (FS_NOATIME_FL)
		1288	const_iv (FS_DIRTY_FL)
		1289	const_iv (FS_COMPRBLK_FL)
		1290	const_iv (FS_NOCOMP_FL)
		1291	const_iv (FS_ENCRYPT_FL)
		1292	const_iv (FS_BTREE_FL)
		1293	const_iv (FS_INDEX_FL)
		1294	const_iv (FS_JOURNAL_DATA_FL)
		1295	const_iv (FS_NOTAIL_FL)
		1296	const_iv (FS_DIRSYNC_FL)
		1297	const_iv (FS_TOPDIR_FL)
		1298	const_iv (FS_FL_USER_MODIFIABLE)
		1299
		1300	const_iv (FS_XFLAG_REALTIME)
		1301	const_iv (FS_XFLAG_PREALLOC)
		1302	const_iv (FS_XFLAG_IMMUTABLE)
		1303	const_iv (FS_XFLAG_APPEND)
		1304	const_iv (FS_XFLAG_SYNC)
		1305	const_iv (FS_XFLAG_NOATIME)
		1306	const_iv (FS_XFLAG_NODUMP)
		1307	const_iv (FS_XFLAG_RTINHERIT)
		1308	const_iv (FS_XFLAG_PROJINHERIT)
		1309	const_iv (FS_XFLAG_NOSYMLINKS)
		1310	const_iv (FS_XFLAG_EXTSIZE)
		1311	const_iv (FS_XFLAG_EXTSZINHERIT)
		1312	const_iv (FS_XFLAG_NODEFRAG)
		1313	const_iv (FS_XFLAG_FILESTREAM)
		1314	const_iv (FS_XFLAG_DAX)
		1315	const_iv (FS_XFLAG_HASATTR)
998		1316
999	const_iv (FIEMAP_FLAG_SYNC)	1317	const_iv (FIEMAP_FLAG_SYNC)
1000	const_iv (FIEMAP_FLAG_XATTR)	1318	const_iv (FIEMAP_FLAG_XATTR)
1001	const_iv (FIEMAP_FLAGS_COMPAT)	1319	const_iv (FIEMAP_FLAGS_COMPAT)
1002	const_iv (FIEMAP_EXTENT_LAST)	1320	const_iv (FIEMAP_EXTENT_LAST)
…		…
1014	const_iv (SPLICE_F_MOVE)	1332	const_iv (SPLICE_F_MOVE)
1015	const_iv (SPLICE_F_NONBLOCK)	1333	const_iv (SPLICE_F_NONBLOCK)
1016	const_iv (SPLICE_F_MORE)	1334	const_iv (SPLICE_F_MORE)
1017	const_iv (SPLICE_F_GIFT)	1335	const_iv (SPLICE_F_GIFT)
1018		1336
		1337	const_iv (EFD_CLOEXEC)
		1338	const_iv (EFD_NONBLOCK)
		1339	const_iv (EFD_SEMAPHORE)
		1340
		1341	const_iv (MFD_CLOEXEC)
		1342	const_iv (MFD_ALLOW_SEALING)
		1343	const_iv (MFD_HUGETLB)
		1344	const_iv (MFD_HUGETLB_2MB)
		1345	const_iv (MFD_HUGETLB_1GB)
		1346
		1347	const_iv (CLOCK_REALTIME)
		1348	const_iv (CLOCK_MONOTONIC)
		1349	const_iv (CLOCK_BOOTTIME)
		1350	const_iv (CLOCK_REALTIME_ALARM)
		1351	const_iv (CLOCK_BOOTTIME_ALARM)
		1352
		1353	const_iv (TFD_NONBLOCK)
		1354	const_iv (TFD_CLOEXEC)
		1355
		1356	const_iv (TFD_TIMER_ABSTIME)
		1357	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1358
		1359	const_iv (STATX_TYPE)
		1360	const_iv (STATX_MODE)
		1361	const_iv (STATX_NLINK)
		1362	const_iv (STATX_UID)
		1363	const_iv (STATX_GID)
		1364	const_iv (STATX_ATIME)
		1365	const_iv (STATX_MTIME)
		1366	const_iv (STATX_CTIME)
		1367	const_iv (STATX_INO)
		1368	const_iv (STATX_SIZE)
		1369	const_iv (STATX_BLOCKS)
		1370	const_iv (STATX_BASIC_STATS)
		1371	const_iv (STATX_ALL)
		1372	const_iv (STATX_BTIME)
		1373	const_iv (STATX_ATTR_COMPRESSED)
		1374	const_iv (STATX_ATTR_IMMUTABLE)
		1375	const_iv (STATX_ATTR_APPEND)
		1376	const_iv (STATX_ATTR_NODUMP)
		1377	const_iv (STATX_ATTR_ENCRYPTED)
		1378	const_iv (STATX_ATTR_AUTOMOUNT)
		1379
		1380	const_iv (AT_FDCWD)
		1381	const_iv (AT_SYMLINK_NOFOLLOW)
		1382	const_iv (AT_EACCESS)
		1383	const_iv (AT_REMOVEDIR)
		1384	const_iv (AT_SYMLINK_FOLLOW)
		1385	const_iv (AT_NO_AUTOMOUNT)
		1386	const_iv (AT_EMPTY_PATH)
		1387	const_iv (AT_STATX_SYNC_TYPE)
		1388	const_iv (AT_STATX_AS_STAT)
		1389	const_iv (AT_STATX_FORCE_SYNC)
		1390	const_iv (AT_STATX_DONT_SYNC)
		1391	const_iv (AT_RECURSIVE)
		1392
		1393	const_iv (OPEN_TREE_CLONE)
		1394
		1395	const_iv (FSOPEN_CLOEXEC)
		1396
		1397	const_iv (FSPICK_CLOEXEC)
		1398	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1399	const_iv (FSPICK_NO_AUTOMOUNT)
		1400	const_iv (FSPICK_EMPTY_PATH)
		1401
		1402	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1403	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1404	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1405	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1406	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1407	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1408
		1409	/* waitid */
		1410	const_iv (P_PID)
		1411	const_iv (P_PIDFD)
		1412	const_iv (P_PGID)
		1413	const_iv (P_ALL)
		1414
		1415	const_iv (FSCONFIG_SET_FLAG)
		1416	const_iv (FSCONFIG_SET_STRING)
		1417	const_iv (FSCONFIG_SET_BINARY)
		1418	const_iv (FSCONFIG_SET_PATH)
		1419	const_iv (FSCONFIG_SET_PATH_EMPTY)
		1420	const_iv (FSCONFIG_SET_FD)
		1421	const_iv (FSCONFIG_CMD_CREATE)
		1422	const_iv (FSCONFIG_CMD_RECONFIGURE)
		1423
		1424	const_iv (MOUNT_ATTR_RDONLY)
		1425	const_iv (MOUNT_ATTR_NOSUID)
		1426	const_iv (MOUNT_ATTR_NODEV)
		1427	const_iv (MOUNT_ATTR_NOEXEC)
		1428	const_iv (MOUNT_ATTR__ATIME)
		1429	const_iv (MOUNT_ATTR_RELATIME)
		1430	const_iv (MOUNT_ATTR_NOATIME)
		1431	const_iv (MOUNT_ATTR_STRICTATIME)
		1432	const_iv (MOUNT_ATTR_NODIRATIME)
		1433
1019	/* these are libeio constants, and are independent of gendef0 */	1434	/* these are libeio constants, and are independent of gendef0 */
1020	const_eio (SEEK_SET)	1435	const_eio (SEEK_SET)
1021	const_eio (SEEK_CUR)	1436	const_eio (SEEK_CUR)
1022	const_eio (SEEK_END)	1437	const_eio (SEEK_END)
1023		1438
1024	const_eio (MCL_FUTURE)	1439	const_eio (MCL_FUTURE)
1025	const_eio (MCL_CURRENT)	1440	const_eio (MCL_CURRENT)
		1441	const_eio (MCL_ONFAULT)
1026		1442
1027	const_eio (MS_ASYNC)	1443	const_eio (MS_ASYNC)
1028	const_eio (MS_INVALIDATE)	1444	const_eio (MS_INVALIDATE)
1029	const_eio (MS_SYNC)	1445	const_eio (MS_SYNC)
1030		1446
…		…
1036		1452
1037	const_eio (FALLOC_FL_KEEP_SIZE)	1453	const_eio (FALLOC_FL_KEEP_SIZE)
1038	const_eio (FALLOC_FL_PUNCH_HOLE)	1454	const_eio (FALLOC_FL_PUNCH_HOLE)
1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1455	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040	const_eio (FALLOC_FL_ZERO_RANGE)	1456	const_eio (FALLOC_FL_ZERO_RANGE)
		1457	const_eio (FALLOC_FL_INSERT_RANGE)
		1458	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1459
		1460	const_eio (RENAME_NOREPLACE)
		1461	const_eio (RENAME_EXCHANGE)
		1462	const_eio (RENAME_WHITEOUT)
1041		1463
1042	const_eio (READDIR_DENTS)	1464	const_eio (READDIR_DENTS)
1043	const_eio (READDIR_DIRS_FIRST)	1465	const_eio (READDIR_DIRS_FIRST)
1044	const_eio (READDIR_STAT_ORDER)	1466	const_eio (READDIR_STAT_ORDER)
1045	const_eio (READDIR_FOUND_UNKNOWN)	1467	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1063	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1485	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1064	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1486	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1065		1487
1066	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1488	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1067		1489
		1490	/* allocate dummy pipe fd for aio_close */
		1491	{
		1492	int pipefd [2];
		1493
		1494	if (
		1495	#ifdef _WIN32
		1496	_pipe (pipefd, 1, _O_BINARY) < 0
		1497	#else
		1498	pipe (pipefd) < 0
		1499	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1500	#endif
		1501	|| close (pipefd [1]) < 0
		1502	)
		1503	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1504
		1505	close_fd = pipefd [0];
		1506	}
		1507
1068	reinit ();	1508	reinit ();
1069	}	1509	}
1070		1510
1071	void	1511	void
1072	reinit ()	1512	reinit ()
…		…
1194		1634
1195	void	1635	void
1196	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1636	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1197	PPCODE:	1637	PPCODE:
1198	{	1638	{
1199	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1200	int fd = s_fileno_croak (fh, 0);	1639	int fd = s_fileno_croak (fh, 0);
1201	dREQ;	1640	dREQ;
		1641	#if 0
		1642	/* partially duplicate logic in s_fileno */
		1643	SvGETMAGIC (fh);
1202		1644
1203	if (expect_false (close_fd < 0))	1645	if (SvROK (fh))
		1646	{
		1647	fh = SvRV (fh);
		1648	SvGETMAGIC (fh);
		1649	}
		1650
		1651	if (SvTYPE (fh) == SVt_PVGV)
1204	{	1652	{
1205	int pipefd [2];	1653	/* perl filehandle */
		1654	PerlIOUnix_refcnt_inc (fd);
		1655	do_close ((GV *)fh, 1);
1206		1656
1207	if (	1657	req->type = EIO_CLOSE;
1208	#ifdef _WIN32	1658	req->int1 = fd;
1209	_pipe (pipefd, 1, _O_BINARY) < 0	1659	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1210	#else
1211	pipe (pipefd) < 0
1212	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1213	#endif
1214	|| close (pipefd [1]) < 0
1215	)
1216	abort (); /*D*/
1217
1218	close_fd = pipefd [0];
1219	}	1660	}
1220		1661	else
		1662	#endif
		1663	{
		1664	/* fd number */
1221	req->type = EIO_DUP2;	1665	req->type = EIO_DUP2;
1222	req->int1 = close_fd;	1666	req->int1 = close_fd;
1223	req->sv2 = newSVsv (fh);	1667	req->sv2 = newSVsv (fh);
1224	req->int2 = fd;	1668	req->int2 = fd;
		1669	}
1225		1670
1226	REQ_SEND;	1671	REQ_SEND;
1227	}	1672	}
1228		1673
1229	void	1674	void
…		…
1296	REQ_SEND;	1741	REQ_SEND;
1297	}	1742	}
1298	}	1743	}
1299		1744
1300	void	1745	void
		1746	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1747	ALIAS:
		1748	aio_ioctl = EIO_IOCTL
		1749	aio_fcntl = EIO_FCNTL
		1750	PPCODE:
		1751	{
		1752	int fd = s_fileno_croak (fh, 0);
		1753	char *svptr;
		1754
		1755	if (SvPOK (arg) || !SvNIOK (arg))
		1756	{
		1757	STRLEN svlen;
		1758	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1759	#ifdef IOCPARM_LEN
		1760	STRLEN need = IOCPARM_LEN (request);
		1761	#else
		1762	STRLEN need = 256;
		1763	#endif
		1764
		1765	if (svlen < need)
		1766	svptr = SvGROW (arg, need);
		1767	}
		1768	else
		1769	svptr = (char *)SvIV (arg);
		1770
		1771	{
		1772	dREQ;
		1773
		1774	req->type = ix;
		1775	req->sv1 = newSVsv (fh);
		1776	req->int1 = fd;
		1777	req->int2 = (long)request;
		1778	req->sv2 = SvREFCNT_inc (arg);
		1779	req->ptr2 = svptr;
		1780
		1781	REQ_SEND;
		1782	}
		1783	}
		1784
		1785	void
1301	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1786	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1302	ALIAS:	1787	ALIAS:
1303	aio_readlink = EIO_READLINK	1788	aio_readlink = EIO_READLINK
1304	aio_realpath = EIO_REALPATH	1789	aio_realpath = EIO_REALPATH
1305	PPCODE:	1790	PPCODE:
…		…
1360	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1845	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1361		1846
1362	REQ_SEND;	1847	REQ_SEND;
1363	}	1848	}
1364		1849
		1850	void
		1851	st_xtime ()
		1852	ALIAS:
		1853	st_atime = 0x01
		1854	st_mtime = 0x02
		1855	st_ctime = 0x04
		1856	st_btime = 0x08
		1857	st_xtime = 0x0f
		1858	PPCODE:
		1859	EXTEND (SP, 4);
		1860	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1861	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1862	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1863	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1864
		1865	void
		1866	st_xtimensec ()
		1867	ALIAS:
		1868	st_atimensec = 0x01
		1869	st_mtimensec = 0x02
		1870	st_ctimensec = 0x04
		1871	st_btimensec = 0x08
		1872	st_xtimensec = 0x0f
		1873	st_btimesec = 0x10
		1874	st_gen = 0x20
		1875	PPCODE:
		1876	EXTEND (SP, 4);
		1877	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1878	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1879	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1880	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1881	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1882	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1883
1365	UV	1884	UV
1366	major (UV dev)	1885	major (UV dev)
1367	ALIAS:	1886	ALIAS:
1368	minor = 1	1887	minor = 1
1369	CODE:	1888	CODE:
1370	RETVAL = ix ? major (dev) : minor (dev);	1889	RETVAL = ix ? minor (dev) : major (dev);
1371	OUTPUT:	1890	OUTPUT:
1372	RETVAL	1891	RETVAL
1373		1892
1374	UV	1893	UV
1375	makedev (UV maj, UV min)	1894	makedev (UV maj, UV min)
…		…
1485	eio_wd wd2 = 0;	2004	eio_wd wd2 = 0;
1486	dREQ;	2005	dREQ;
1487		2006
1488	req->type = ix;	2007	req->type = ix;
1489	req_set_path1 (req, oldpath);	2008	req_set_path1 (req, oldpath);
1490	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	2009	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		2010	req->int3 = (long)wd2;
		2011
		2012	REQ_SEND;
		2013	}
		2014
		2015	void
		2016	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		2017	PPCODE:
		2018	{
		2019	eio_wd wd2 = 0;
		2020	dREQ;
		2021
		2022	req->type = EIO_RENAME;
		2023	req_set_path1 (req, oldpath);
		2024	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		2025	req->int2 = flags;
1491	req->int3 = (long)wd2;	2026	req->int3 = (long)wd2;
1492		2027
1493	REQ_SEND;	2028	REQ_SEND;
1494	}	2029	}
1495		2030
…		…
1506		2041
1507	REQ_SEND;	2042	REQ_SEND;
1508	}	2043	}
1509		2044
1510	void	2045	void
1511	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	2046	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1512	ALIAS:	2047	ALIAS:
1513	aio_mtouch = EIO_MTOUCH	2048	aio_mtouch = EIO_MTOUCH
1514	aio_msync = EIO_MSYNC	2049	aio_msync = EIO_MSYNC
1515	PPCODE:	2050	PPCODE:
1516	{	2051	{
1517	STRLEN svlen;	2052	STRLEN svlen;
1518	char *svptr = SvPVbyte (data, svlen);	2053	char *svptr = SvPVbyte (data, svlen);
1519	UV len = SvUV (length);	2054	UV len = SvUV (length);
		2055
		2056	if (flags < 0)
		2057	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1520		2058
1521	if (offset < 0)	2059	if (offset < 0)
1522	offset += svlen;	2060	offset += svlen;
1523		2061
1524	if (offset < 0 || offset > svlen)	2062	if (offset < 0 || offset > svlen)
…		…
1600	req->int2 = flags;	2138	req->int2 = flags;
1601	req->int3 = SvOK (count) ? SvIV (count) : -1;	2139	req->int3 = SvOK (count) ? SvIV (count) : -1;
1602	#endif	2140	#endif
1603		2141
1604	REQ_SEND;	2142	REQ_SEND;
		2143	}
		2144
		2145	void
		2146	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2147	PPCODE:
		2148	{
		2149	char *svptr = 0;
		2150
		2151	sv_clear_foreign (data);
		2152
		2153	if (length) /* known length, directly read into scalar */
		2154	{
		2155	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2156	svptr = sv_grow (data, length + 1);
		2157	else if (SvCUR (data) < length)
		2158	croak ("length outside of scalar, and cannot grow");
		2159	else
		2160	svptr = SvPVbyte_nolen (data);
		2161	}
		2162
		2163	{
		2164	dREQ;
		2165
		2166	req->type = EIO_SLURP;
		2167	req_set_path1 (req, pathname);
		2168	req->offs = offset;
		2169	req->size = length;
		2170	req->sv2 = SvREFCNT_inc (data);
		2171	req->ptr2 = svptr;
		2172
		2173	if (!SvREADONLY (data))
		2174	{
		2175	SvREADONLY_on (data);
		2176	req->flags |= FLAG_SV2_RO_OFF;
		2177	}
		2178
		2179	REQ_SEND;
		2180	}
1605	}	2181	}
1606		2182
1607	void	2183	void
1608	aio_busy (double delay, SV *callback = &PL_sv_undef)	2184	aio_busy (double delay, SV *callback = &PL_sv_undef)
1609	PPCODE:	2185	PPCODE:
…		…
1746	RETVAL	2322	RETVAL
1747		2323
1748	void	2324	void
1749	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2325	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1750	PPCODE:	2326	PPCODE:
1751	sv_unmagic (scalar, MMAP_MAGIC);	2327	sv_clear_foreign (scalar);
1752	{	2328	{
1753	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2329	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1754	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2330	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1755	if (addr == (void *)-1)	2331	if (addr == (void *)-1)
1756	XSRETURN_NO;	2332	XSRETURN_NO;
1757		2333
1758	sv_force_normal (scalar);	2334	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1759
1760	/* we store the length in mg_obj, as namlen is I32 :/ */
1761	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1762	->mg_obj = (SV *)length;
1763
1764	SvUPGRADE (scalar, SVt_PV); /* nop... */
1765		2335
1766	if (!(prot & PROT_WRITE))	2336	if (!(prot & PROT_WRITE))
1767	SvREADONLY_on (scalar);	2337	SvREADONLY_on (scalar);
1768		2338
1769	if (SvLEN (scalar))
1770	Safefree (SvPVX (scalar));
1771
1772	SvPVX (scalar) = (char *)addr;
1773	SvCUR_set (scalar, length);
1774	SvLEN_set (scalar, 0);
1775	SvPOK_only (scalar);
1776
1777	XSRETURN_YES;	2339	XSRETURN_YES;
1778	}	2340	}
1779		2341
1780	void	2342	void
1781	munmap (SV *scalar)	2343	munmap (SV *scalar)
1782	CODE:	2344	CODE:
1783	sv_unmagic (scalar, MMAP_MAGIC);	2345	sv_clear_foreign (scalar);
		2346
		2347	SV *
		2348	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2349	CODE:
		2350	{
		2351	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2352	void *new;
		2353
		2354	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2355	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2356
		2357	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2358
		2359	RETVAL = &PL_sv_no;
		2360
		2361	if (new != (void *)-1)
		2362	{
		2363	RETVAL = new == (void *)mg->mg_ptr
		2364	? newSVpvn ("0 but true", 10)
		2365	: &PL_sv_yes;
		2366
		2367	mg->mg_ptr = (char *)new;
		2368	mg->mg_obj = (SV *)new_length;
		2369
		2370	SvPVX (scalar) = mg->mg_ptr;
		2371	SvCUR_set (scalar, new_length);
		2372	}
		2373	}
		2374	OUTPUT:
		2375	RETVAL
1784		2376
1785	int	2377	int
1786	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2378	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1787	ALIAS:	2379	ALIAS:
1788	mprotect = 1	2380	mprotect = 1
1789	CODE:	2381	CODE:
1790	{	2382	{
1791	STRLEN svlen;	2383	STRLEN svlen;
…		…
1812	}	2404	}
1813	OUTPUT:	2405	OUTPUT:
1814	RETVAL	2406	RETVAL
1815		2407
1816	int	2408	int
1817	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2409	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1818	CODE:	2410	CODE:
1819	{	2411	{
1820	STRLEN svlen;	2412	STRLEN svlen;
1821	void *addr = SvPVbyte (scalar, svlen);	2413	void *addr = SvPVbyte (scalar, svlen);
1822	size_t len = SvUV (length);	2414	size_t len = SvUV (length);
…		…
1837	#else	2429	#else
1838	RETVAL = EIO_ENOSYS ();	2430	RETVAL = EIO_ENOSYS ();
1839	#endif	2431	#endif
1840	}	2432	}
1841	OUTPUT:	2433	OUTPUT:
		2434	RETVAL
		2435
		2436	int
		2437	mlockall (int flags)
		2438	PROTOTYPE: $;
		2439	CODE:
		2440	RETVAL = eio_mlockall_sync (flags);
		2441	OUTPUT:
1842	RETVAL	2442	RETVAL
1843		2443
1844	int	2444	int
1845	munlockall ()	2445	munlockall ()
1846	CODE:	2446	CODE:
…		…
1851	#endif	2451	#endif
1852	OUTPUT:	2452	OUTPUT:
1853	RETVAL	2453	RETVAL
1854		2454
1855	int	2455	int
		2456	statx (SV8 *pathname, int flags, UV mask)
		2457	CODE:
		2458	{
		2459	/* undocumented, and might go away, and anyway, should use eio_statx */
		2460	SV *wdsv = 0;
		2461	SV *pathsv = 0;
		2462	eio_wd wd = EIO_CWD;
		2463	void *ptr;
		2464	int res;
		2465
		2466	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2467	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2468
		2469	SvREFCNT_dec (pathsv);
		2470	SvREFCNT_dec (wdsv);
		2471	}
		2472	OUTPUT:
		2473	RETVAL
		2474
		2475	U32
		2476	stx_mode ()
		2477	PROTOTYPE:
		2478	CODE:
		2479	#if HAVE_STATX
		2480	RETVAL = stx.stx_mode;
		2481	#else
		2482	XSRETURN_UNDEF;
		2483	#endif
		2484	OUTPUT:
		2485	RETVAL
		2486
		2487	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2488	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2489	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2490	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2491	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2492	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2493	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2494	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2495	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2496	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2497	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2498	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2499	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2500	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2501	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2502	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2503	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2504	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2505
		2506	U32
		2507	stx_mask ()
		2508	PROTOTYPE:
		2509	ALIAS:
		2510	stx_mask = STATX_OFFSET_mask
		2511	stx_blksize = STATX_OFFSET_blksize
		2512	stx_nlink = STATX_OFFSET_nlink
		2513	stx_uid = STATX_OFFSET_uid
		2514	stx_gid = STATX_OFFSET_gid
		2515	stx_rdev_major = STATX_OFFSET_rdev_major
		2516	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2517	stx_dev_major = STATX_OFFSET_dev_major
		2518	stx_dev_minor = STATX_OFFSET_dev_minor
		2519	CODE:
		2520	#if HAVE_STATX
		2521	RETVAL = *(__u32 *)((char *)&stx + ix);
		2522	#else
		2523	XSRETURN_UNDEF;
		2524	#endif
		2525	OUTPUT:
		2526	RETVAL
		2527
		2528	VAL64
		2529	stx_attributes ()
		2530	PROTOTYPE:
		2531	ALIAS:
		2532	stx_attributes = STATX_OFFSET_attributes
		2533	stx_ino = STATX_OFFSET_ino
		2534	stx_size = STATX_OFFSET_size
		2535	stx_blocks = STATX_OFFSET_blocks
		2536	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2537	CODE:
		2538	#if HAVE_STATX
		2539	RETVAL = *(__u64 *)((char *)&stx + ix);
		2540	#else
		2541	XSRETURN_UNDEF;
		2542	#endif
		2543	OUTPUT:
		2544	RETVAL
		2545
		2546	NV
		2547	stx_atime ()
		2548	PROTOTYPE:
		2549	ALIAS:
		2550	stx_atime = STATX_OFFSET_atime
		2551	stx_btime = STATX_OFFSET_btime
		2552	stx_ctime = STATX_OFFSET_ctime
		2553	stx_mtime = STATX_OFFSET_mtime
		2554	CODE:
		2555	#if HAVE_STATX
		2556	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2557	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2558	#else
		2559	XSRETURN_UNDEF;
		2560	#endif
		2561	OUTPUT:
		2562	RETVAL
		2563
		2564	VAL64
		2565	stx_atimesec ()
		2566	PROTOTYPE:
		2567	ALIAS:
		2568	stx_atimesec = STATX_OFFSET_atime
		2569	stx_btimesec = STATX_OFFSET_btime
		2570	stx_ctimesec = STATX_OFFSET_ctime
		2571	stx_mtimesec = STATX_OFFSET_mtime
		2572	CODE:
		2573	#if HAVE_STATX
		2574	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2575	RETVAL = ts->tv_sec;
		2576	#else
		2577	XSRETURN_UNDEF;
		2578	#endif
		2579	OUTPUT:
		2580	RETVAL
		2581
		2582	U32
		2583	stx_atimensec ()
		2584	PROTOTYPE:
		2585	ALIAS:
		2586	stx_atimensec = STATX_OFFSET_atime
		2587	stx_btimensec = STATX_OFFSET_btime
		2588	stx_ctimensec = STATX_OFFSET_ctime
		2589	stx_mtimensec = STATX_OFFSET_mtime
		2590	CODE:
		2591	#if HAVE_STATX
		2592	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2593	RETVAL = ts->tv_nsec;
		2594	#else
		2595	RETVAL = 0;
		2596	#endif
		2597	OUTPUT:
		2598	RETVAL
		2599
		2600	void
		2601	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2602	PPCODE:
		2603	{
		2604	SV *retval;
		2605	#if HAVE_ACCEPT4
		2606	socklen_t salen_ = salen ? salen + 1 : 0;
		2607
		2608	if (salen)
		2609	{
		2610	sv_upgrade (sockaddr, SVt_PV);
		2611	sv_grow (sockaddr, salen_);
		2612	}
		2613
		2614	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2615
		2616	retval = newmortalFH (res, O_RDWR);
		2617
		2618	if (res >= 0 && salen > 0)
		2619	{
		2620	if (salen_ > salen + 1)
		2621	salen_ = salen + 1;
		2622
		2623	SvPOK_only (sockaddr);
		2624	SvCUR_set (sockaddr, salen_);
		2625	}
		2626	#else
		2627	errno = ENOSYS;
		2628	retval = &PL_sv_undef;
		2629	#endif
		2630	XPUSHs (retval);
		2631	}
		2632
		2633	ssize_t
1856	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2634	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1857	CODE:	2635	CODE:
1858	{	2636	{
1859	#if HAVE_LINUX_SPLICE	2637	#if HAVE_LINUX_SPLICE
1860	loff_t off_in_, off_out_;	2638	loff_t off_in_, off_out_;
…		…
1868	#endif	2646	#endif
1869	}	2647	}
1870	OUTPUT:	2648	OUTPUT:
1871	RETVAL	2649	RETVAL
1872		2650
1873	int	2651	ssize_t
1874	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)	2652	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1875	CODE:	2653	CODE:
1876	#if HAVE_LINUX_SPLICE	2654	#if HAVE_LINUX_SPLICE
1877	RETVAL = tee (rfh, wfh, length, flags);	2655	RETVAL = tee (rfh, wfh, length, flags);
1878	#else	2656	#else
…		…
1918	{	2696	{
1919	EXTEND (SP, 2);	2697	EXTEND (SP, 2);
1920	PUSHs (newmortalFH (fd[0], O_RDONLY));	2698	PUSHs (newmortalFH (fd[0], O_RDONLY));
1921	PUSHs (newmortalFH (fd[1], O_WRONLY));	2699	PUSHs (newmortalFH (fd[1], O_WRONLY));
1922	}	2700	}
		2701	}
		2702
		2703	void
		2704	pidfd_open (int pid, unsigned int flags = 0)
		2705	PPCODE:
		2706	{
		2707	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2708	int fd = syscall (SYS_pidfd_open, pid, flags);
		2709	XPUSHs (newmortalFH (fd, O_RDWR));
		2710	}
		2711
		2712	int
		2713	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2714	PPCODE:
		2715	{
		2716	int res;
		2717	#if HAVE_SIGINFO_T
		2718	siginfo_t si = { 0 };
		2719
		2720	if (SvOK (siginfo))
		2721	{
		2722	HV *hv;
		2723	SV **svp;
		2724
		2725	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2726	croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
		2727
		2728	hv = (HV *)SvRV (siginfo);
		2729
		2730	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2731	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2732	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2733	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2734	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2735	}
		2736
		2737	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2738	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2739	#else
		2740	res = (errno = ENOSYS, -1);
		2741	#endif
		2742
		2743	XPUSHs (sv_2mortal (newSViv (res)));
		2744	}
		2745
		2746	void
		2747	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2748	PPCODE:
		2749	{
		2750	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2751	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2752	XPUSHs (newmortalFH (fd, O_RDWR));
		2753	}
		2754
		2755	void
		2756	eventfd (unsigned int initval = 0, int flags = 0)
		2757	PPCODE:
		2758	{
		2759	int fd;
		2760	#if HAVE_EVENTFD
		2761	fd = eventfd (initval, flags);
		2762	#else
		2763	fd = (errno = ENOSYS, -1);
		2764	#endif
		2765
		2766	XPUSHs (newmortalFH (fd, O_RDWR));
		2767	}
		2768
		2769	void
		2770	timerfd_create (int clockid, int flags = 0)
		2771	PPCODE:
		2772	{
		2773	int fd;
		2774	#if HAVE_TIMERFD
		2775	fd = timerfd_create (clockid, flags);
		2776	#else
		2777	fd = (errno = ENOSYS, -1);
		2778	#endif
		2779
		2780	XPUSHs (newmortalFH (fd, O_RDWR));
		2781	}
		2782
		2783	void
		2784	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2785	PPCODE:
		2786	{
		2787	int fd = s_fileno_croak (fh, 0);
		2788	#if HAVE_TIMERFD
		2789	int res;
		2790	struct itimerspec its, ots;
		2791
		2792	ts_set (&its.it_interval, interval);
		2793	ts_set (&its.it_value , value);
		2794	res = timerfd_settime (fd, flags, &its, &ots);
		2795
		2796	if (!res)
		2797	{
		2798	EXTEND (SP, 2);
		2799	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2800	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2801	}
		2802	#else
		2803	errno = ENOSYS;
		2804	#endif
		2805	}
		2806
		2807	void
		2808	timerfd_gettime (SV *fh)
		2809	PPCODE:
		2810	{
		2811	int fd = s_fileno_croak (fh, 0);
		2812	#if HAVE_TIMERFD
		2813	int res;
		2814	struct itimerspec ots;
		2815	res = timerfd_gettime (fd, &ots);
		2816
		2817	if (!res)
		2818	{
		2819	EXTEND (SP, 2);
		2820	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2821	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2822	}
		2823	#else
		2824	errno = ENOSYS;
		2825	#endif
		2826	}
		2827
		2828	void
		2829	memfd_create (SV8 *pathname, int flags = 0)
		2830	PPCODE:
		2831	{
		2832	int fd;
		2833	#if HAVE_MEMFD_CREATE
		2834	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2835	#else
		2836	fd = (errno = ENOSYS, -1);
		2837	#endif
		2838
		2839	XPUSHs (newmortalFH (fd, O_RDWR));
		2840	}
		2841
		2842	int
		2843	fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
		2844	CODE:
		2845	{
		2846	int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
		2847	char **envp, **argv;
		2848	argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
		2849	if (!SvOK (envs))
		2850	{
		2851	extern char **environ;
		2852	envp = environ;
		2853	}
		2854	else
		2855	envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
		2856	#if _POSIX_VERSION >= 200809L
		2857	RETVAL = fexecve (fd, argv, envp);
		2858	#else
		2859	RETVAL = (errno = ENOSYS, -1);
		2860	#endif
		2861	}
		2862	OUTPUT: RETVAL
		2863
		2864	UV
		2865	get_fdlimit ()
		2866	CODE:
		2867	#if HAVE_RLIMITS
		2868	struct rlimit rl;
		2869	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2870	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2871	#endif
		2872	XSRETURN_UNDEF;
		2873	OUTPUT:
		2874	RETVAL
		2875
		2876	void
		2877	min_fdlimit (UV limit = 0x7fffffffU)
		2878	CODE:
		2879	{
		2880	#if HAVE_RLIMITS
		2881	struct rlimit rl;
		2882	rlim_t orig_rlim_max;
		2883	UV bit;
		2884
		2885	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2886	goto fail;
		2887
		2888	if (rl.rlim_cur == RLIM_INFINITY)
		2889	XSRETURN_YES;
		2890
		2891	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2892
		2893	if (rl.rlim_cur < limit)
		2894	{
		2895	rl.rlim_cur = limit;
		2896
		2897	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2898	rl.rlim_max = rl.rlim_cur;
		2899	}
		2900
		2901	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2902	XSRETURN_YES;
		2903
		2904	if (errno == EPERM)
		2905	{
		2906	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2907	/* our limit overflows a system-wide limit */
		2908	/* try an adaptive algorithm, but do not lower the hardlimit */
		2909	rl.rlim_max = 0;
		2910	for (bit = 0x40000000U; bit; bit >>= 1)
		2911	{
		2912	rl.rlim_max |= bit;
		2913	rl.rlim_cur = rl.rlim_max;
		2914
		2915	/* never decrease the hard limit */
		2916	if (rl.rlim_max < orig_rlim_max)
		2917	break;
		2918
		2919	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2920	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2921	}
		2922
		2923	/* now, raise the soft limit to the max permitted */
		2924	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2925	{
		2926	rl.rlim_cur = rl.rlim_max;
		2927	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2928	errno = EPERM;
		2929	}
		2930	}
		2931	#endif
		2932	fail:
		2933	XSRETURN_UNDEF;
1923	}	2934	}
1924		2935
1925	void _on_next_submit (SV *cb)	2936	void _on_next_submit (SV *cb)
1926	CODE:	2937	CODE:
1927	SvREFCNT_dec (on_next_submit);	2938	SvREFCNT_dec (on_next_submit);

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