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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.236 by root, Thu Jun 25 17:40:24 2015 UTC vs.
Revision 1.289 by root, Mon Jan 4 22:19:06 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
		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	}
…		…
704	{	927	{
705	while (eio_nreqs ())	928	while (eio_nreqs ())
706	{	929	{
707	int size;	930	int size;
708		931
709	X_LOCK (reslock);	932	X_LOCK (EIO_POOL->reslock);
710	size = EIO_POOL->res_queue.size;	933	size = EIO_POOL->res_queue.size;
711	X_UNLOCK (reslock);	934	X_UNLOCK (EIO_POOL->reslock);
712		935
713	if (size)	936	if (size)
714	return;	937	return;
715		938
716	etp_maybe_start_thread (EIO_POOL);	939	etp_maybe_start_thread (EIO_POOL);
…		…
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
890	XS(boot_IO__AIO) ecb_cold;	1098	XS(boot_IO__AIO) ecb_cold;
891		1099
892	MODULE = IO::AIO PACKAGE = IO::AIO	1100	MODULE = IO::AIO PACKAGE = IO::AIO
893		1101
894	PROTOTYPES: ENABLE	1102	PROTOTYPES: ENABLE
…		…
925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1133	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1134	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1135	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928		1136
929	/* the second block will be 0 when missing */	1137	/* the second block will be 0 when missing */
		1138	const_iv (O_ACCMODE)
		1139
930	const_iv (O_RDONLY)	1140	const_iv (O_RDONLY)
931	const_iv (O_WRONLY)	1141	const_iv (O_WRONLY)
932	const_iv (O_RDWR)	1142	const_iv (O_RDWR)
933	const_iv (O_CREAT)	1143	const_iv (O_CREAT)
934	const_iv (O_TRUNC)	1144	const_iv (O_TRUNC)
…		…
985	const_iv (MAP_SHARED)	1195	const_iv (MAP_SHARED)
986	const_iv (MAP_FIXED)	1196	const_iv (MAP_FIXED)
987	const_iv (MAP_ANONYMOUS)	1197	const_iv (MAP_ANONYMOUS)
988		1198
989	/* linuxish */	1199	/* linuxish */
990	const_iv (MAP_HUGETLB)
991	const_iv (MAP_LOCKED)	1200	const_iv (MAP_LOCKED)
992	const_iv (MAP_NORESERVE)	1201	const_iv (MAP_NORESERVE)
993	const_iv (MAP_POPULATE)	1202	const_iv (MAP_POPULATE)
994	const_iv (MAP_NONBLOCK)	1203	const_iv (MAP_NONBLOCK)
995	const_iv (MAP_GROWSDOWN)	1204	const_iv (MAP_GROWSDOWN)
996	const_iv (MAP_32BIT)	1205	const_iv (MAP_32BIT)
997	const_iv (MAP_HUGETLB)	1206	const_iv (MAP_HUGETLB)
998	const_iv (MAP_STACK)	1207	const_iv (MAP_STACK)
		1208
		1209	const_iv (MREMAP_MAYMOVE)
		1210	const_iv (MREMAP_FIXED)
		1211
		1212	const_iv (MSG_CMSG_CLOEXEC)
		1213	const_iv (SOCK_CLOEXEC)
		1214
		1215	const_iv (F_DUPFD_CLOEXEC)
		1216
		1217	const_iv (F_ADD_SEALS)
		1218	const_iv (F_GET_SEALS)
		1219	const_iv (F_SEAL_SEAL)
		1220	const_iv (F_SEAL_SHRINK)
		1221	const_iv (F_SEAL_GROW)
		1222	const_iv (F_SEAL_WRITE)
		1223
		1224	const_iv (F_OFD_GETLK)
		1225	const_iv (F_OFD_SETLK)
		1226	const_iv (F_OFD_GETLKW)
		1227
		1228	const_iv (FIFREEZE)
		1229	const_iv (FITHAW)
		1230	const_iv (FITRIM)
		1231	const_iv (FICLONE)
		1232	const_iv (FICLONERANGE)
		1233	const_iv (FIDEDUPERANGE)
		1234
		1235	const_iv (FS_IOC_GETFLAGS)
		1236	const_iv (FS_IOC_SETFLAGS)
		1237	const_iv (FS_IOC_GETVERSION)
		1238	const_iv (FS_IOC_SETVERSION)
		1239	const_iv (FS_IOC_FIEMAP)
		1240	const_iv (FS_IOC_FSGETXATTR)
		1241	const_iv (FS_IOC_FSSETXATTR)
		1242	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1243	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1244	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1245
		1246	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1247
		1248	const_iv (FS_SECRM_FL)
		1249	const_iv (FS_UNRM_FL)
		1250	const_iv (FS_COMPR_FL)
		1251	const_iv (FS_SYNC_FL)
		1252	const_iv (FS_IMMUTABLE_FL)
		1253	const_iv (FS_APPEND_FL)
		1254	const_iv (FS_NODUMP_FL)
		1255	const_iv (FS_NOATIME_FL)
		1256	const_iv (FS_DIRTY_FL)
		1257	const_iv (FS_COMPRBLK_FL)
		1258	const_iv (FS_NOCOMP_FL)
		1259	const_iv (FS_ENCRYPT_FL)
		1260	const_iv (FS_BTREE_FL)
		1261	const_iv (FS_INDEX_FL)
		1262	const_iv (FS_JOURNAL_DATA_FL)
		1263	const_iv (FS_NOTAIL_FL)
		1264	const_iv (FS_DIRSYNC_FL)
		1265	const_iv (FS_TOPDIR_FL)
		1266	const_iv (FS_FL_USER_MODIFIABLE)
		1267
		1268	const_iv (FS_XFLAG_REALTIME)
		1269	const_iv (FS_XFLAG_PREALLOC)
		1270	const_iv (FS_XFLAG_IMMUTABLE)
		1271	const_iv (FS_XFLAG_APPEND)
		1272	const_iv (FS_XFLAG_SYNC)
		1273	const_iv (FS_XFLAG_NOATIME)
		1274	const_iv (FS_XFLAG_NODUMP)
		1275	const_iv (FS_XFLAG_RTINHERIT)
		1276	const_iv (FS_XFLAG_PROJINHERIT)
		1277	const_iv (FS_XFLAG_NOSYMLINKS)
		1278	const_iv (FS_XFLAG_EXTSIZE)
		1279	const_iv (FS_XFLAG_EXTSZINHERIT)
		1280	const_iv (FS_XFLAG_NODEFRAG)
		1281	const_iv (FS_XFLAG_FILESTREAM)
		1282	const_iv (FS_XFLAG_DAX)
		1283	const_iv (FS_XFLAG_HASATTR)
999		1284
1000	const_iv (FIEMAP_FLAG_SYNC)	1285	const_iv (FIEMAP_FLAG_SYNC)
1001	const_iv (FIEMAP_FLAG_XATTR)	1286	const_iv (FIEMAP_FLAG_XATTR)
1002	const_iv (FIEMAP_FLAGS_COMPAT)	1287	const_iv (FIEMAP_FLAGS_COMPAT)
1003	const_iv (FIEMAP_EXTENT_LAST)	1288	const_iv (FIEMAP_EXTENT_LAST)
…		…
1015	const_iv (SPLICE_F_MOVE)	1300	const_iv (SPLICE_F_MOVE)
1016	const_iv (SPLICE_F_NONBLOCK)	1301	const_iv (SPLICE_F_NONBLOCK)
1017	const_iv (SPLICE_F_MORE)	1302	const_iv (SPLICE_F_MORE)
1018	const_iv (SPLICE_F_GIFT)	1303	const_iv (SPLICE_F_GIFT)
1019		1304
		1305	const_iv (EFD_CLOEXEC)
		1306	const_iv (EFD_NONBLOCK)
		1307	const_iv (EFD_SEMAPHORE)
		1308
		1309	const_iv (MFD_CLOEXEC)
		1310	const_iv (MFD_ALLOW_SEALING)
		1311	const_iv (MFD_HUGETLB)
		1312
		1313	const_iv (CLOCK_REALTIME)
		1314	const_iv (CLOCK_MONOTONIC)
		1315	const_iv (CLOCK_BOOTTIME)
		1316	const_iv (CLOCK_REALTIME_ALARM)
		1317	const_iv (CLOCK_BOOTTIME_ALARM)
		1318
		1319	const_iv (TFD_NONBLOCK)
		1320	const_iv (TFD_CLOEXEC)
		1321
		1322	const_iv (TFD_TIMER_ABSTIME)
		1323	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1324
		1325	const_iv (STATX_TYPE)
		1326	const_iv (STATX_MODE)
		1327	const_iv (STATX_NLINK)
		1328	const_iv (STATX_UID)
		1329	const_iv (STATX_GID)
		1330	const_iv (STATX_ATIME)
		1331	const_iv (STATX_MTIME)
		1332	const_iv (STATX_CTIME)
		1333	const_iv (STATX_INO)
		1334	const_iv (STATX_SIZE)
		1335	const_iv (STATX_BLOCKS)
		1336	const_iv (STATX_BASIC_STATS)
		1337	const_iv (STATX_ALL)
		1338	const_iv (STATX_BTIME)
		1339	const_iv (STATX_ATTR_COMPRESSED)
		1340	const_iv (STATX_ATTR_IMMUTABLE)
		1341	const_iv (STATX_ATTR_APPEND)
		1342	const_iv (STATX_ATTR_NODUMP)
		1343	const_iv (STATX_ATTR_ENCRYPTED)
		1344	const_iv (STATX_ATTR_AUTOMOUNT)
		1345
		1346	const_iv (AT_FDCWD)
		1347	const_iv (AT_SYMLINK_NOFOLLOW)
		1348	const_iv (AT_EACCESS)
		1349	const_iv (AT_REMOVEDIR)
		1350	const_iv (AT_SYMLINK_FOLLOW)
		1351	const_iv (AT_NO_AUTOMOUNT)
		1352	const_iv (AT_EMPTY_PATH)
		1353	const_iv (AT_STATX_SYNC_TYPE)
		1354	const_iv (AT_STATX_AS_STAT)
		1355	const_iv (AT_STATX_FORCE_SYNC)
		1356	const_iv (AT_STATX_DONT_SYNC)
		1357	const_iv (AT_RECURSIVE)
		1358
		1359	const_iv (OPEN_TREE_CLONE)
		1360
		1361	const_iv (FSOPEN_CLOEXEC)
		1362
		1363	const_iv (FSPICK_CLOEXEC)
		1364	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1365	const_iv (FSPICK_NO_AUTOMOUNT)
		1366	const_iv (FSPICK_EMPTY_PATH)
		1367
		1368	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1369	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1370	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1371	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1372	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1373	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1374
		1375	/* waitid */
		1376	const_iv (P_PID)
		1377	const_iv (P_PIDFD)
		1378	const_iv (P_PGID)
		1379	const_iv (P_ALL)
		1380
		1381	const_iv (FSCONFIG_SET_FLAG)
		1382	const_iv (FSCONFIG_SET_STRING)
		1383	const_iv (FSCONFIG_SET_BINARY)
		1384	const_iv (FSCONFIG_SET_PATH)
		1385	const_iv (FSCONFIG_SET_PATH_EMPTY)
		1386	const_iv (FSCONFIG_SET_FD)
		1387	const_iv (FSCONFIG_CMD_CREATE)
		1388	const_iv (FSCONFIG_CMD_RECONFIGURE)
		1389
		1390	const_iv (MOUNT_ATTR_RDONLY)
		1391	const_iv (MOUNT_ATTR_NOSUID)
		1392	const_iv (MOUNT_ATTR_NODEV)
		1393	const_iv (MOUNT_ATTR_NOEXEC)
		1394	const_iv (MOUNT_ATTR__ATIME)
		1395	const_iv (MOUNT_ATTR_RELATIME)
		1396	const_iv (MOUNT_ATTR_NOATIME)
		1397	const_iv (MOUNT_ATTR_STRICTATIME)
		1398	const_iv (MOUNT_ATTR_NODIRATIME)
		1399
1020	/* these are libeio constants, and are independent of gendef0 */	1400	/* these are libeio constants, and are independent of gendef0 */
1021	const_eio (SEEK_SET)	1401	const_eio (SEEK_SET)
1022	const_eio (SEEK_CUR)	1402	const_eio (SEEK_CUR)
1023	const_eio (SEEK_END)	1403	const_eio (SEEK_END)
1024		1404
1025	const_eio (MCL_FUTURE)	1405	const_eio (MCL_FUTURE)
1026	const_eio (MCL_CURRENT)	1406	const_eio (MCL_CURRENT)
		1407	const_eio (MCL_ONFAULT)
1027		1408
1028	const_eio (MS_ASYNC)	1409	const_eio (MS_ASYNC)
1029	const_eio (MS_INVALIDATE)	1410	const_eio (MS_INVALIDATE)
1030	const_eio (MS_SYNC)	1411	const_eio (MS_SYNC)
1031		1412
…		…
1037		1418
1038	const_eio (FALLOC_FL_KEEP_SIZE)	1419	const_eio (FALLOC_FL_KEEP_SIZE)
1039	const_eio (FALLOC_FL_PUNCH_HOLE)	1420	const_eio (FALLOC_FL_PUNCH_HOLE)
1040	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1421	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1041	const_eio (FALLOC_FL_ZERO_RANGE)	1422	const_eio (FALLOC_FL_ZERO_RANGE)
		1423	const_eio (FALLOC_FL_INSERT_RANGE)
		1424	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1425
		1426	const_eio (RENAME_NOREPLACE)
		1427	const_eio (RENAME_EXCHANGE)
		1428	const_eio (RENAME_WHITEOUT)
1042		1429
1043	const_eio (READDIR_DENTS)	1430	const_eio (READDIR_DENTS)
1044	const_eio (READDIR_DIRS_FIRST)	1431	const_eio (READDIR_DIRS_FIRST)
1045	const_eio (READDIR_STAT_ORDER)	1432	const_eio (READDIR_STAT_ORDER)
1046	const_eio (READDIR_FOUND_UNKNOWN)	1433	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1064	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1451	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1065	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1452	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1066		1453
1067	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1454	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1068		1455
		1456	/* allocate dummy pipe fd for aio_close */
		1457	{
		1458	int pipefd [2];
		1459
		1460	if (
		1461	#ifdef _WIN32
		1462	_pipe (pipefd, 1, _O_BINARY) < 0
		1463	#else
		1464	pipe (pipefd) < 0
		1465	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1466	#endif
		1467	|| close (pipefd [1]) < 0
		1468	)
		1469	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1470
		1471	close_fd = pipefd [0];
		1472	}
		1473
1069	reinit ();	1474	reinit ();
1070	}	1475	}
1071		1476
1072	void	1477	void
1073	reinit ()	1478	reinit ()
…		…
1195		1600
1196	void	1601	void
1197	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1602	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1198	PPCODE:	1603	PPCODE:
1199	{	1604	{
1200	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1201	int fd = s_fileno_croak (fh, 0);	1605	int fd = s_fileno_croak (fh, 0);
1202	dREQ;	1606	dREQ;
		1607	#if 0
		1608	/* partially duplicate logic in s_fileno */
		1609	SvGETMAGIC (fh);
1203		1610
1204	if (expect_false (close_fd < 0))	1611	if (SvROK (fh))
		1612	{
		1613	fh = SvRV (fh);
		1614	SvGETMAGIC (fh);
		1615	}
		1616
		1617	if (SvTYPE (fh) == SVt_PVGV)
1205	{	1618	{
1206	int pipefd [2];	1619	/* perl filehandle */
		1620	PerlIOUnix_refcnt_inc (fd);
		1621	do_close ((GV *)fh, 1);
1207		1622
1208	if (	1623	req->type = EIO_CLOSE;
1209	#ifdef _WIN32	1624	req->int1 = fd;
1210	_pipe (pipefd, 1, _O_BINARY) < 0	1625	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1211	#else
1212	pipe (pipefd) < 0
1213	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1214	#endif
1215	|| close (pipefd [1]) < 0
1216	)
1217	abort (); /*D*/
1218
1219	close_fd = pipefd [0];
1220	}	1626	}
1221		1627	else
		1628	#endif
		1629	{
		1630	/* fd number */
1222	req->type = EIO_DUP2;	1631	req->type = EIO_DUP2;
1223	req->int1 = close_fd;	1632	req->int1 = close_fd;
1224	req->sv2 = newSVsv (fh);	1633	req->sv2 = newSVsv (fh);
1225	req->int2 = fd;	1634	req->int2 = fd;
		1635	}
1226		1636
1227	REQ_SEND;	1637	REQ_SEND;
1228	}	1638	}
1229		1639
1230	void	1640	void
…		…
1297	REQ_SEND;	1707	REQ_SEND;
1298	}	1708	}
1299	}	1709	}
1300		1710
1301	void	1711	void
		1712	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1713	ALIAS:
		1714	aio_ioctl = EIO_IOCTL
		1715	aio_fcntl = EIO_FCNTL
		1716	PPCODE:
		1717	{
		1718	int fd = s_fileno_croak (fh, 0);
		1719	char *svptr;
		1720
		1721	if (SvPOK (arg) || !SvNIOK (arg))
		1722	{
		1723	STRLEN svlen;
		1724	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1725	#ifdef IOCPARM_LEN
		1726	STRLEN need = IOCPARM_LEN (request);
		1727	#else
		1728	STRLEN need = 256;
		1729	#endif
		1730
		1731	if (svlen < need)
		1732	svptr = SvGROW (arg, need);
		1733	}
		1734	else
		1735	svptr = (char *)SvIV (arg);
		1736
		1737	{
		1738	dREQ;
		1739
		1740	req->type = ix;
		1741	req->sv1 = newSVsv (fh);
		1742	req->int1 = fd;
		1743	req->int2 = (long)request;
		1744	req->sv2 = SvREFCNT_inc (arg);
		1745	req->ptr2 = svptr;
		1746
		1747	REQ_SEND;
		1748	}
		1749	}
		1750
		1751	void
1302	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1752	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1303	ALIAS:	1753	ALIAS:
1304	aio_readlink = EIO_READLINK	1754	aio_readlink = EIO_READLINK
1305	aio_realpath = EIO_REALPATH	1755	aio_realpath = EIO_REALPATH
1306	PPCODE:	1756	PPCODE:
…		…
1361	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1811	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1362		1812
1363	REQ_SEND;	1813	REQ_SEND;
1364	}	1814	}
1365		1815
		1816	void
		1817	st_xtime ()
		1818	ALIAS:
		1819	st_atime = 0x01
		1820	st_mtime = 0x02
		1821	st_ctime = 0x04
		1822	st_btime = 0x08
		1823	st_xtime = 0x0f
		1824	PPCODE:
		1825	EXTEND (SP, 4);
		1826	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1827	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1828	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1829	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1830
		1831	void
		1832	st_xtimensec ()
		1833	ALIAS:
		1834	st_atimensec = 0x01
		1835	st_mtimensec = 0x02
		1836	st_ctimensec = 0x04
		1837	st_btimensec = 0x08
		1838	st_xtimensec = 0x0f
		1839	st_btimesec = 0x10
		1840	st_gen = 0x20
		1841	PPCODE:
		1842	EXTEND (SP, 4);
		1843	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1844	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1845	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1846	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1847	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1848	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1849
1366	UV	1850	UV
1367	major (UV dev)	1851	major (UV dev)
1368	ALIAS:	1852	ALIAS:
1369	minor = 1	1853	minor = 1
1370	CODE:	1854	CODE:
1371	RETVAL = ix ? major (dev) : minor (dev);	1855	RETVAL = ix ? minor (dev) : major (dev);
1372	OUTPUT:	1856	OUTPUT:
1373	RETVAL	1857	RETVAL
1374		1858
1375	UV	1859	UV
1376	makedev (UV maj, UV min)	1860	makedev (UV maj, UV min)
…		…
1486	eio_wd wd2 = 0;	1970	eio_wd wd2 = 0;
1487	dREQ;	1971	dREQ;
1488		1972
1489	req->type = ix;	1973	req->type = ix;
1490	req_set_path1 (req, oldpath);	1974	req_set_path1 (req, oldpath);
1491	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1975	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1976	req->int3 = (long)wd2;
		1977
		1978	REQ_SEND;
		1979	}
		1980
		1981	void
		1982	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1983	PPCODE:
		1984	{
		1985	eio_wd wd2 = 0;
		1986	dREQ;
		1987
		1988	req->type = EIO_RENAME;
		1989	req_set_path1 (req, oldpath);
		1990	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1991	req->int2 = flags;
1492	req->int3 = (long)wd2;	1992	req->int3 = (long)wd2;
1493		1993
1494	REQ_SEND;	1994	REQ_SEND;
1495	}	1995	}
1496		1996
…		…
1507		2007
1508	REQ_SEND;	2008	REQ_SEND;
1509	}	2009	}
1510		2010
1511	void	2011	void
1512	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	2012	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1513	ALIAS:	2013	ALIAS:
1514	aio_mtouch = EIO_MTOUCH	2014	aio_mtouch = EIO_MTOUCH
1515	aio_msync = EIO_MSYNC	2015	aio_msync = EIO_MSYNC
1516	PPCODE:	2016	PPCODE:
1517	{	2017	{
1518	STRLEN svlen;	2018	STRLEN svlen;
1519	char *svptr = SvPVbyte (data, svlen);	2019	char *svptr = SvPVbyte (data, svlen);
1520	UV len = SvUV (length);	2020	UV len = SvUV (length);
		2021
		2022	if (flags < 0)
		2023	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1521		2024
1522	if (offset < 0)	2025	if (offset < 0)
1523	offset += svlen;	2026	offset += svlen;
1524		2027
1525	if (offset < 0 || offset > svlen)	2028	if (offset < 0 || offset > svlen)
…		…
1601	req->int2 = flags;	2104	req->int2 = flags;
1602	req->int3 = SvOK (count) ? SvIV (count) : -1;	2105	req->int3 = SvOK (count) ? SvIV (count) : -1;
1603	#endif	2106	#endif
1604		2107
1605	REQ_SEND;	2108	REQ_SEND;
		2109	}
		2110
		2111	void
		2112	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2113	PPCODE:
		2114	{
		2115	char *svptr = 0;
		2116
		2117	sv_clear_foreign (data);
		2118
		2119	if (length) /* known length, directly read into scalar */
		2120	{
		2121	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2122	svptr = sv_grow (data, length + 1);
		2123	else if (SvCUR (data) < length)
		2124	croak ("length outside of scalar, and cannot grow");
		2125	else
		2126	svptr = SvPVbyte_nolen (data);
		2127	}
		2128
		2129	{
		2130	dREQ;
		2131
		2132	req->type = EIO_SLURP;
		2133	req_set_path1 (req, pathname);
		2134	req->offs = offset;
		2135	req->size = length;
		2136	req->sv2 = SvREFCNT_inc (data);
		2137	req->ptr2 = svptr;
		2138
		2139	if (!SvREADONLY (data))
		2140	{
		2141	SvREADONLY_on (data);
		2142	req->flags |= FLAG_SV2_RO_OFF;
		2143	}
		2144
		2145	REQ_SEND;
		2146	}
1606	}	2147	}
1607		2148
1608	void	2149	void
1609	aio_busy (double delay, SV *callback = &PL_sv_undef)	2150	aio_busy (double delay, SV *callback = &PL_sv_undef)
1610	PPCODE:	2151	PPCODE:
…		…
1747	RETVAL	2288	RETVAL
1748		2289
1749	void	2290	void
1750	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2291	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1751	PPCODE:	2292	PPCODE:
1752	sv_unmagic (scalar, MMAP_MAGIC);	2293	sv_clear_foreign (scalar);
1753	{	2294	{
1754	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2295	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1755	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2296	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1756	if (addr == (void *)-1)	2297	if (addr == (void *)-1)
1757	XSRETURN_NO;	2298	XSRETURN_NO;
1758		2299
1759	sv_force_normal (scalar);	2300	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1760
1761	/* we store the length in mg_obj, as namlen is I32 :/ */
1762	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1763	->mg_obj = (SV *)length;
1764
1765	SvUPGRADE (scalar, SVt_PV); /* nop... */
1766		2301
1767	if (!(prot & PROT_WRITE))	2302	if (!(prot & PROT_WRITE))
1768	SvREADONLY_on (scalar);	2303	SvREADONLY_on (scalar);
1769		2304
1770	if (SvLEN (scalar))
1771	Safefree (SvPVX (scalar));
1772
1773	SvPVX (scalar) = (char *)addr;
1774	SvCUR_set (scalar, length);
1775	SvLEN_set (scalar, 0);
1776	SvPOK_only (scalar);
1777
1778	XSRETURN_YES;	2305	XSRETURN_YES;
1779	}	2306	}
1780		2307
1781	void	2308	void
1782	munmap (SV *scalar)	2309	munmap (SV *scalar)
1783	CODE:	2310	CODE:
1784	sv_unmagic (scalar, MMAP_MAGIC);	2311	sv_clear_foreign (scalar);
		2312
		2313	SV *
		2314	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2315	CODE:
		2316	{
		2317	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2318	void *new;
		2319
		2320	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2321	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2322
		2323	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2324
		2325	RETVAL = &PL_sv_no;
		2326
		2327	if (new != (void *)-1)
		2328	{
		2329	RETVAL = new == (void *)mg->mg_ptr
		2330	? newSVpvn ("0 but true", 10)
		2331	: &PL_sv_yes;
		2332
		2333	mg->mg_ptr = (char *)new;
		2334	mg->mg_obj = (SV *)new_length;
		2335
		2336	SvPVX (scalar) = mg->mg_ptr;
		2337	SvCUR_set (scalar, new_length);
		2338	}
		2339	}
		2340	OUTPUT:
		2341	RETVAL
1785		2342
1786	int	2343	int
1787	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2344	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1788	ALIAS:	2345	ALIAS:
1789	mprotect = 1	2346	mprotect = 1
1790	CODE:	2347	CODE:
1791	{	2348	{
1792	STRLEN svlen;	2349	STRLEN svlen;
…		…
1813	}	2370	}
1814	OUTPUT:	2371	OUTPUT:
1815	RETVAL	2372	RETVAL
1816		2373
1817	int	2374	int
1818	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2375	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1819	CODE:	2376	CODE:
1820	{	2377	{
1821	STRLEN svlen;	2378	STRLEN svlen;
1822	void *addr = SvPVbyte (scalar, svlen);	2379	void *addr = SvPVbyte (scalar, svlen);
1823	size_t len = SvUV (length);	2380	size_t len = SvUV (length);
…		…
1838	#else	2395	#else
1839	RETVAL = EIO_ENOSYS ();	2396	RETVAL = EIO_ENOSYS ();
1840	#endif	2397	#endif
1841	}	2398	}
1842	OUTPUT:	2399	OUTPUT:
		2400	RETVAL
		2401
		2402	int
		2403	mlockall (int flags)
		2404	PROTOTYPE: $;
		2405	CODE:
		2406	RETVAL = eio_mlockall_sync (flags);
		2407	OUTPUT:
1843	RETVAL	2408	RETVAL
1844		2409
1845	int	2410	int
1846	munlockall ()	2411	munlockall ()
1847	CODE:	2412	CODE:
…		…
1852	#endif	2417	#endif
1853	OUTPUT:	2418	OUTPUT:
1854	RETVAL	2419	RETVAL
1855		2420
1856	int	2421	int
		2422	statx (SV8 *pathname, int flags, UV mask)
		2423	CODE:
		2424	{
		2425	/* undocumented, and might go away, and anyway, should use eio_statx */
		2426	SV *wdsv = 0;
		2427	SV *pathsv = 0;
		2428	eio_wd wd = EIO_CWD;
		2429	void *ptr;
		2430	int res;
		2431
		2432	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2433	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2434
		2435	SvREFCNT_dec (pathsv);
		2436	SvREFCNT_dec (wdsv);
		2437	}
		2438	OUTPUT:
		2439	RETVAL
		2440
		2441	U32
		2442	stx_mode ()
		2443	PROTOTYPE:
		2444	CODE:
		2445	#if HAVE_STATX
		2446	RETVAL = stx.stx_mode;
		2447	#else
		2448	XSRETURN_UNDEF;
		2449	#endif
		2450	OUTPUT:
		2451	RETVAL
		2452
		2453	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2454	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2455	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2456	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2457	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2458	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2459	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2460	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2461	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2462	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2463	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2464	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2465	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2466	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2467	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2468	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2469	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2470	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2471
		2472	U32
		2473	stx_mask ()
		2474	PROTOTYPE:
		2475	ALIAS:
		2476	stx_mask = STATX_OFFSET_mask
		2477	stx_blksize = STATX_OFFSET_blksize
		2478	stx_nlink = STATX_OFFSET_nlink
		2479	stx_uid = STATX_OFFSET_uid
		2480	stx_gid = STATX_OFFSET_gid
		2481	stx_rdev_major = STATX_OFFSET_rdev_major
		2482	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2483	stx_dev_major = STATX_OFFSET_dev_major
		2484	stx_dev_minor = STATX_OFFSET_dev_minor
		2485	CODE:
		2486	#if HAVE_STATX
		2487	RETVAL = *(__u32 *)((char *)&stx + ix);
		2488	#else
		2489	XSRETURN_UNDEF;
		2490	#endif
		2491	OUTPUT:
		2492	RETVAL
		2493
		2494	VAL64
		2495	stx_attributes ()
		2496	PROTOTYPE:
		2497	ALIAS:
		2498	stx_attributes = STATX_OFFSET_attributes
		2499	stx_ino = STATX_OFFSET_ino
		2500	stx_size = STATX_OFFSET_size
		2501	stx_blocks = STATX_OFFSET_blocks
		2502	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2503	CODE:
		2504	#if HAVE_STATX
		2505	RETVAL = *(__u64 *)((char *)&stx + ix);
		2506	#else
		2507	XSRETURN_UNDEF;
		2508	#endif
		2509	OUTPUT:
		2510	RETVAL
		2511
		2512	NV
		2513	stx_atime ()
		2514	PROTOTYPE:
		2515	ALIAS:
		2516	stx_atime = STATX_OFFSET_atime
		2517	stx_btime = STATX_OFFSET_btime
		2518	stx_ctime = STATX_OFFSET_ctime
		2519	stx_mtime = STATX_OFFSET_mtime
		2520	CODE:
		2521	#if HAVE_STATX
		2522	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2523	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2524	#else
		2525	XSRETURN_UNDEF;
		2526	#endif
		2527	OUTPUT:
		2528	RETVAL
		2529
		2530	VAL64
		2531	stx_atimesec ()
		2532	PROTOTYPE:
		2533	ALIAS:
		2534	stx_atimesec = STATX_OFFSET_atime
		2535	stx_btimesec = STATX_OFFSET_btime
		2536	stx_ctimesec = STATX_OFFSET_ctime
		2537	stx_mtimesec = STATX_OFFSET_mtime
		2538	CODE:
		2539	#if HAVE_STATX
		2540	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2541	RETVAL = ts->tv_sec;
		2542	#else
		2543	XSRETURN_UNDEF;
		2544	#endif
		2545	OUTPUT:
		2546	RETVAL
		2547
		2548	U32
		2549	stx_atimensec ()
		2550	PROTOTYPE:
		2551	ALIAS:
		2552	stx_atimensec = STATX_OFFSET_atime
		2553	stx_btimensec = STATX_OFFSET_btime
		2554	stx_ctimensec = STATX_OFFSET_ctime
		2555	stx_mtimensec = STATX_OFFSET_mtime
		2556	CODE:
		2557	#if HAVE_STATX
		2558	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2559	RETVAL = ts->tv_nsec;
		2560	#else
		2561	RETVAL = 0;
		2562	#endif
		2563	OUTPUT:
		2564	RETVAL
		2565
		2566	void
		2567	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2568	PPCODE:
		2569	{
		2570	SV *retval;
		2571	#if HAVE_ACCEPT4
		2572	socklen_t salen_ = salen ? salen + 1 : 0;
		2573
		2574	if (salen)
		2575	{
		2576	sv_upgrade (sockaddr, SVt_PV);
		2577	sv_grow (sockaddr, salen_);
		2578	}
		2579
		2580	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2581
		2582	retval = newmortalFH (res, O_RDWR);
		2583
		2584	if (res >= 0 && salen > 0)
		2585	{
		2586	if (salen_ > salen + 1)
		2587	salen_ = salen + 1;
		2588
		2589	SvPOK_only (sockaddr);
		2590	SvCUR_set (sockaddr, salen_);
		2591	}
		2592	#else
		2593	errno = ENOSYS;
		2594	retval = &PL_sv_undef;
		2595	#endif
		2596	XPUSHs (retval);
		2597	}
		2598
		2599	ssize_t
1857	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2600	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1858	CODE:	2601	CODE:
1859	{	2602	{
1860	#if HAVE_LINUX_SPLICE	2603	#if HAVE_LINUX_SPLICE
1861	loff_t off_in_, off_out_;	2604	loff_t off_in_, off_out_;
…		…
1869	#endif	2612	#endif
1870	}	2613	}
1871	OUTPUT:	2614	OUTPUT:
1872	RETVAL	2615	RETVAL
1873		2616
1874	int	2617	ssize_t
1875	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)	2618	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1876	CODE:	2619	CODE:
1877	#if HAVE_LINUX_SPLICE	2620	#if HAVE_LINUX_SPLICE
1878	RETVAL = tee (rfh, wfh, length, flags);	2621	RETVAL = tee (rfh, wfh, length, flags);
1879	#else	2622	#else
…		…
1919	{	2662	{
1920	EXTEND (SP, 2);	2663	EXTEND (SP, 2);
1921	PUSHs (newmortalFH (fd[0], O_RDONLY));	2664	PUSHs (newmortalFH (fd[0], O_RDONLY));
1922	PUSHs (newmortalFH (fd[1], O_WRONLY));	2665	PUSHs (newmortalFH (fd[1], O_WRONLY));
1923	}	2666	}
		2667	}
		2668
		2669	void
		2670	pidfd_open (int pid, unsigned int flags = 0)
		2671	PPCODE:
		2672	{
		2673	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2674	int fd = syscall (SYS_pidfd_open, pid, flags);
		2675	XPUSHs (newmortalFH (fd, O_RDWR));
		2676	}
		2677
		2678	int
		2679	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2680	PPCODE:
		2681	{
		2682	int res;
		2683	siginfo_t si = { 0 };
		2684
		2685	if (SvOK (siginfo))
		2686	{
		2687	HV *hv;
		2688	SV **svp;
		2689
		2690	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2691	croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
		2692
		2693	hv = (HV *)SvRV (siginfo);
		2694
		2695	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2696	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2697	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2698	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2699	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2700	}
		2701
		2702	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2703	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2704
		2705	XPUSHs (sv_2mortal (newSViv (res)));
		2706	}
		2707
		2708	void
		2709	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2710	PPCODE:
		2711	{
		2712	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2713	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2714	XPUSHs (newmortalFH (fd, O_RDWR));
		2715	}
		2716
		2717	void
		2718	eventfd (unsigned int initval = 0, int flags = 0)
		2719	PPCODE:
		2720	{
		2721	int fd;
		2722	#if HAVE_EVENTFD
		2723	fd = eventfd (initval, flags);
		2724	#else
		2725	fd = (errno = ENOSYS, -1);
		2726	#endif
		2727
		2728	XPUSHs (newmortalFH (fd, O_RDWR));
		2729	}
		2730
		2731	void
		2732	timerfd_create (int clockid, int flags = 0)
		2733	PPCODE:
		2734	{
		2735	int fd;
		2736	#if HAVE_TIMERFD
		2737	fd = timerfd_create (clockid, flags);
		2738	#else
		2739	fd = (errno = ENOSYS, -1);
		2740	#endif
		2741
		2742	XPUSHs (newmortalFH (fd, O_RDWR));
		2743	}
		2744
		2745	void
		2746	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2747	PPCODE:
		2748	{
		2749	int fd = s_fileno_croak (fh, 0);
		2750	#if HAVE_TIMERFD
		2751	int res;
		2752	struct itimerspec its, ots;
		2753
		2754	ts_set (&its.it_interval, interval);
		2755	ts_set (&its.it_value , value);
		2756	res = timerfd_settime (fd, flags, &its, &ots);
		2757
		2758	if (!res)
		2759	{
		2760	EXTEND (SP, 2);
		2761	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2762	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2763	}
		2764	#else
		2765	errno = ENOSYS;
		2766	#endif
		2767	}
		2768
		2769	void
		2770	timerfd_gettime (SV *fh)
		2771	PPCODE:
		2772	{
		2773	int fd = s_fileno_croak (fh, 0);
		2774	#if HAVE_TIMERFD
		2775	int res;
		2776	struct itimerspec ots;
		2777	res = timerfd_gettime (fd, &ots);
		2778
		2779	if (!res)
		2780	{
		2781	EXTEND (SP, 2);
		2782	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2783	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2784	}
		2785	#else
		2786	errno = ENOSYS;
		2787	#endif
		2788	}
		2789
		2790	void
		2791	memfd_create (SV8 *pathname, int flags = 0)
		2792	PPCODE:
		2793	{
		2794	int fd;
		2795	#if HAVE_MEMFD_CREATE
		2796	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2797	#else
		2798	fd = (errno = ENOSYS, -1);
		2799	#endif
		2800
		2801	XPUSHs (newmortalFH (fd, O_RDWR));
		2802	}
		2803
		2804	UV
		2805	get_fdlimit ()
		2806	CODE:
		2807	#if HAVE_RLIMITS
		2808	struct rlimit rl;
		2809	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2810	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2811	#endif
		2812	XSRETURN_UNDEF;
		2813	OUTPUT:
		2814	RETVAL
		2815
		2816	void
		2817	min_fdlimit (UV limit = 0x7fffffffU)
		2818	CODE:
		2819	{
		2820	#if HAVE_RLIMITS
		2821	struct rlimit rl;
		2822	rlim_t orig_rlim_max;
		2823	UV bit;
		2824
		2825	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2826	goto fail;
		2827
		2828	if (rl.rlim_cur == RLIM_INFINITY)
		2829	XSRETURN_YES;
		2830
		2831	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2832
		2833	if (rl.rlim_cur < limit)
		2834	{
		2835	rl.rlim_cur = limit;
		2836
		2837	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2838	rl.rlim_max = rl.rlim_cur;
		2839	}
		2840
		2841	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2842	XSRETURN_YES;
		2843
		2844	if (errno == EPERM)
		2845	{
		2846	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2847	/* our limit overflows a system-wide limit */
		2848	/* try an adaptive algorithm, but do not lower the hardlimit */
		2849	rl.rlim_max = 0;
		2850	for (bit = 0x40000000U; bit; bit >>= 1)
		2851	{
		2852	rl.rlim_max |= bit;
		2853	rl.rlim_cur = rl.rlim_max;
		2854
		2855	/* never decrease the hard limit */
		2856	if (rl.rlim_max < orig_rlim_max)
		2857	break;
		2858
		2859	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2860	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2861	}
		2862
		2863	/* now, raise the soft limit to the max permitted */
		2864	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2865	{
		2866	rl.rlim_cur = rl.rlim_max;
		2867	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2868	errno = EPERM;
		2869	}
		2870	}
		2871	#endif
		2872	fail:
		2873	XSRETURN_UNDEF;
1924	}	2874	}
1925		2875
1926	void _on_next_submit (SV *cb)	2876	void _on_next_submit (SV *cb)
1927	CODE:	2877	CODE:
1928	SvREFCNT_dec (on_next_submit);	2878	SvREFCNT_dec (on_next_submit);

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