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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.235 by root, Thu Jun 25 15:47:01 2015 UTC vs.
Revision 1.275 by root, Mon Mar 18 23:52:09 2019 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		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
…		…
102		104
103	#define expect_false(expr) expect ((expr) != 0, 0)	105	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	106	#define expect_true(expr) expect ((expr) != 0, 1)
105		107
106	/*****************************************************************************/	108	/*****************************************************************************/
		109
		110	#include "config.h"
		111
		112	#if HAVE_SYS_MKDEV_H
		113	# include <sys/mkdev.h>
		114	#elif HAVE_SYS_SYSMACROS_H
		115	# include <sys/sysmacros.h>
		116	#endif
		117
		118	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		119	# include <sys/mman.h>
		120	#endif
		121
		122	#if HAVE_SYS_UIO_H
		123	# include <sys/uio.h>
		124	#endif
		125
		126	#if HAVE_ST_XTIMENSEC
		127	# define ATIMENSEC PL_statcache.st_atimensec
		128	# define MTIMENSEC PL_statcache.st_mtimensec
		129	# define CTIMENSEC PL_statcache.st_ctimensec
		130	#elif HAVE_ST_XTIMESPEC
		131	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		132	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		133	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		134	#else
		135	# define ATIMENSEC 0
		136	# define MTIMENSEC 0
		137	# define CTIMENSEC 0
		138	#endif
		139
		140	#if HAVE_ST_BIRTHTIMENSEC
		141	# define BTIMESEC PL_statcache.st_birthtime
		142	# define BTIMENSEC PL_statcache.st_birthtimensec
		143	#elif HAVE_ST_BIRTHTIMESPEC
		144	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		145	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		146	#else
		147	# define BTIMESEC 0
		148	# define BTIMENSEC 0
		149	#endif
		150
		151	#if HAVE_ST_GEN
		152	# define ST_GEN PL_statcache.st_gen
		153	#else
		154	# define ST_GEN 0
		155	#endif
		156
		157	#include "schmorp.h"
		158
		159	#if HAVE_EVENTFD
		160	# include <sys/eventfd.h>
		161	#endif
		162
		163	#if HAVE_TIMERFD
		164	# include <sys/timerfd.h>
		165	#endif
		166
		167	#if HAVE_RLIMITS
		168	#include <sys/time.h>
		169	#include <sys/resource.h>
		170	#endif
107		171
108	typedef SV SV8; /* byte-sv, used for argument-checking */	172	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	173	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	174	typedef int aio_wfd; /* write file descriptor */
111		175
…		…
118	STRLEN stroffset; \	182	STRLEN stroffset; \
119	SV *self;	183	SV *self;
120		184
121	#define EIO_NO_WRAPPERS 1	185	#define EIO_NO_WRAPPERS 1
122		186
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	187	#include "libeio/eio.h"
125		188
126	static int req_invoke (eio_req *req);	189	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	190	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	191	static void req_destroy (eio_req *grp);
…		…
144	# else	207	# else
145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	208	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
146	# endif	209	# endif
147	#endif	210	#endif
148		211
		212	#ifndef makedev
		213	# define makedev(maj,min) (((maj) << 8) | (min))
		214	#endif
		215	#ifndef major
		216	# define major(dev) ((dev) >> 8)
		217	#endif
		218	#ifndef minor
		219	# define minor(dev) ((dev) & 0xff)
		220	#endif
		221
		222	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		223	#ifdef __sun
		224	# undef PAGESIZE
		225	#endif
		226
		227	#if PAGESIZE <= 0
		228	# define PAGESIZE sysconf (_SC_PAGESIZE)
		229	#endif
		230
		231	/*****************************************************************************/
		232
		233	#if !_POSIX_MAPPED_FILES
		234	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		235	# define munmap(addr,length) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !_POSIX_MEMORY_PROTECTION
		239	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		240	#endif
		241
		242	#if !MREMAP_MAYMOVE
		243	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		244	#endif
		245
		246	#define FOREIGN_MAGIC PERL_MAGIC_ext
		247
		248	static int ecb_cold
		249	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		250	{
		251	int old_errno = errno;
		252	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		253	errno = old_errno;
		254
		255	mg->mg_obj = 0; /* just in case */
		256
		257	SvREADONLY_off (sv);
		258
		259	if (SvPVX (sv) != mg->mg_ptr)
		260	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		261
		262	SvCUR_set (sv, 0);
		263	SvPVX (sv) = 0;
		264	SvOK_off (sv);
		265
		266	return 0;
		267	}
		268
		269	static MGVTBL mmap_vtbl = {
		270	0, 0, 0, 0, mmap_free
		271	};
		272
		273	static int ecb_cold
		274	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		275	{
		276	free (mg->mg_ptr);
		277	mg->mg_obj = 0; /* just in case */
		278
		279	SvREADONLY_off (sv);
		280
		281	if (SvPVX (sv) != mg->mg_ptr)
		282	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		283
		284	SvCUR_set (sv, 0);
		285	SvPVX (sv) = 0;
		286	SvOK_off (sv);
		287
		288	return 0;
		289	}
		290
		291	static MGVTBL sysfree_vtbl = {
		292	0, 0, 0, 0, sysfree_free
		293	};
		294
		295	/*****************************************************************************/
		296
		297	/* helper: set scalar to foreign ptr with custom free */
		298	ecb_noinline
		299	static void
		300	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		301	{
		302	sv_force_normal (sv);
		303
		304	/* we store the length in mg_obj, as namlen is I32 :/ */
		305	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		306	->mg_obj = (SV *)length;
		307
		308	SvUPGRADE (sv, SVt_PV); /* nop... */
		309
		310	if (SvLEN (sv))
		311	Safefree (SvPVX (sv));
		312
		313	SvPVX (sv) = (char *)addr;
		314	SvCUR_set (sv, length);
		315	SvLEN_set (sv, 0);
		316	SvPOK_only (sv);
		317	}
		318
		319	static void
		320	sv_clear_foreign (SV *sv)
		321	{
		322	/* todo: iterate over magic and only free ours, but of course */
		323	/* the perl5porters will call that (correct) behaviour buggy */
		324	sv_unmagic (sv, FOREIGN_MAGIC);
		325	}
		326
		327	/*****************************************************************************/
		328
149	/* defines all sorts of constants to 0 unless they are already defined */	329	/* defines all sorts of constants to 0 unless they are already defined */
150	/* also provides const_iv_ and const_niv_ macros for them */	330	/* also provides const_iv_ and const_niv_ macros for them */
151	#include "def0.h"	331	#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		332
167	/*****************************************************************************/	333	/*****************************************************************************/
168		334
169	static void	335	static void
170	fiemap (eio_req *req)	336	fiemap (eio_req *req)
…		…
262	#endif	428	#endif
263	}	429	}
264		430
265	/*****************************************************************************/	431	/*****************************************************************************/
266		432
		433	static int close_fd; /* dummy fd to close fds via dup2 */
		434
		435	#if HAVE_STATX
		436	static struct statx stx;
		437	#define statx_offsetof(member) offsetof (struct statx, member)
		438	#define eio__statx statx
		439	#else
		440	#define statx_offsetof(member) 0
		441	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		442	#endif
		443
267	enum {	444	enum {
268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	445	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
269	};	446	};
270		447
271	typedef eio_req *aio_req;	448	typedef eio_req *aio_req;
…		…
294	/* read any signals sent by the worker threads */	471	/* read any signals sent by the worker threads */
295	s_epipe_drain (&respipe);	472	s_epipe_drain (&respipe);
296	}	473	}
297		474
298	/* must be called at most once */	475	/* must be called at most once */
		476	ecb_noinline
299	static SV *	477	static SV *
300	req_sv (aio_req req, HV *stash)	478	req_sv (aio_req req, HV *stash)
301	{	479	{
302	if (!req->self)	480	if (!req->self)
303	{	481	{
…		…
312	newSVaio_wd (aio_wd wd)	490	newSVaio_wd (aio_wd wd)
313	{	491	{
314	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);	492	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315	}	493	}
316		494
		495	ecb_noinline
317	static aio_req	496	static aio_req
318	SvAIO_REQ (SV *sv)	497	SvAIO_REQ (SV *sv)
319	{	498	{
320	MAGIC *mg;	499	MAGIC *mg;
321		500
…		…
384	FREETMPS;	563	FREETMPS;
385	LEAVE;	564	LEAVE;
386	}	565	}
387	}	566	}
388		567
		568	ecb_noinline
389	static void	569	static void
390	req_submit (eio_req *req)	570	req_submit (eio_req *req)
391	{	571	{
392	eio_submit (req);	572	eio_submit (req);
393		573
…		…
590	SvSETMAGIC (req->sv2);	770	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	771	PUSHs (sv_result);
592	}	772	}
593	break;	773	break;
594		774
		775	case EIO_SLURP:
		776	{
		777	if (req->result >= 0)
		778	{
		779	/* if length was originally not known, we steal the malloc'ed memory */
		780	if (req->flags & EIO_FLAG_PTR2_FREE)
		781	{
		782	req->flags &= ~EIO_FLAG_PTR2_FREE;
		783	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		784	}
		785	else
		786	{
		787	SvCUR_set (req->sv2, req->result);
		788	*SvEND (req->sv2) = 0;
		789	SvPOK_only (req->sv2);
		790	}
		791
		792	SvSETMAGIC (req->sv2);
		793	}
		794
		795	PUSHs (sv_result);
		796	}
		797	break;
		798
595	case EIO_CUSTOM:	799	case EIO_CUSTOM:
596	if (req->feed == fiemap)	800	if (req->feed == fiemap)
597	{	801	{
598	#if HAVE_FIEMAP	802	#if HAVE_FIEMAP
599	if (!req->result)	803	if (!req->result)
…		…
630	}	834	}
631	else	835	else
632	PUSHs (sv_result);	836	PUSHs (sv_result);
633	break;	837	break;
634		838
		839	#if 0
		840	case EIO_CLOSE:
		841	PerlIOUnix_refcnt_dec (req->int1);
		842	break;
		843	#endif
		844
635	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	845	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
636	if (req->result > 0)	846	if (req->result > 0)
637	SvIV_set (sv_result, 0);	847	SvIV_set (sv_result, 0);
638	/* FALLTHROUGH */	848	/* FALLTHROUGH */
639		849
…		…
690	grp->sv2 = 0;	900	grp->sv2 = 0;
691		901
692	eio_grp_cancel (grp);	902	eio_grp_cancel (grp);
693	}	903	}
694		904
695	static void ecb_cold	905	ecb_cold
		906	static void
696	create_respipe (void)	907	create_respipe (void)
697	{	908	{
698	if (s_epipe_renew (&respipe))	909	if (s_epipe_renew (&respipe))
699	croak ("IO::AIO: unable to initialize result pipe");	910	croak ("IO::AIO: unable to initialize result pipe");
700	}	911	}
…		…
704	{	915	{
705	while (eio_nreqs ())	916	while (eio_nreqs ())
706	{	917	{
707	int size;	918	int size;
708		919
709	X_LOCK (reslock);	920	X_LOCK (EIO_POOL->reslock);
710	size = res_queue.size;	921	size = EIO_POOL->res_queue.size;
711	X_UNLOCK (reslock);	922	X_UNLOCK (EIO_POOL->reslock);
712		923
713	if (size)	924	if (size)
714	return;	925	return;
715		926
716	etp_maybe_start_thread ();	927	etp_maybe_start_thread (EIO_POOL);
717		928
718	s_epipe_wait (&respipe);	929	s_epipe_wait (&respipe);
719	}	930	}
720	}	931	}
721		932
…		…
734		945
735	poll_wait ();	946	poll_wait ();
736	}	947	}
737	}	948	}
738		949
739	static void ecb_cold	950	ecb_cold
		951	static void
740	reinit (void)	952	reinit (void)
741	{	953	{
742	create_respipe ();	954	create_respipe ();
743		955
744	if (eio_init (want_poll, done_poll) < 0)	956	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	957	croak ("IO::AIO: unable to initialise eio library");
746	}	958	}
747		959
748	/*****************************************************************************/	960	/*****************************************************************************/
749		961
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 *	962	static SV *
789	get_cb (SV *cb_sv)	963	get_cb (SV *cb_sv)
790	{	964	{
791	SvGETMAGIC (cb_sv);	965	SvGETMAGIC (cb_sv);
792	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	966	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793	}	967	}
794		968
		969	ecb_noinline
795	static aio_req ecb_noinline	970	static aio_req ecb_noinline
796	dreq (SV *callback)	971	dreq (SV *callback)
797	{	972	{
798	SV *cb_cv;	973	SV *cb_cv;
799	aio_req req;	974	aio_req req;
…		…
821	SPAGAIN; \	996	SPAGAIN; \
822	\	997	\
823	if (GIMME_V != G_VOID) \	998	if (GIMME_V != G_VOID) \
824	XPUSHs (req_sv (req, aio_req_stash));	999	XPUSHs (req_sv (req, aio_req_stash));
825		1000
		1001	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
826	ecb_inline void	1002	ecb_inline
		1003	void
827	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	1004	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
828	{	1005	{
829	if (expect_false (SvROK (path)))	1006	if (expect_false (SvROK (path)))
830	{	1007	{
831	SV *rv = SvRV (path);	1008	SV *rv = SvRV (path);
832	SV *wdob;	1009	SV *wdob;
…		…
857		1034
858	*pathsv = newSVsv (path);	1035	*pathsv = newSVsv (path);
859	*ptr = SvPVbyte_nolen (*pathsv);	1036	*ptr = SvPVbyte_nolen (*pathsv);
860	}	1037	}
861		1038
862	static void ecb_noinline	1039	ecb_noinline
		1040	static void
863	req_set_path1 (aio_req req, SV *path)	1041	req_set_path1 (aio_req req, SV *path)
864	{	1042	{
865	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1043	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
866	}	1044	}
867		1045
868	static void ecb_noinline	1046	ecb_noinline
		1047	static void
869	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1048	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
870	{	1049	{
871	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1050	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
872		1051
873	switch (SvTYPE (rv))	1052	switch (SvTYPE (rv))
…		…
885	req_set_path1 (req, fh_or_path);	1064	req_set_path1 (req, fh_or_path);
886	break;	1065	break;
887	}	1066	}
888	}	1067	}
889		1068
		1069	/*****************************************************************************/
		1070
		1071	static void
		1072	ts_set (struct timespec *ts, NV value)
		1073	{
		1074	ts->tv_sec = value;
		1075	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1076	}
		1077
		1078	static NV
		1079	ts_get (const struct timespec *ts)
		1080	{
		1081	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1082	}
		1083
		1084	/*****************************************************************************/
		1085
890	XS(boot_IO__AIO) ecb_cold;	1086	XS(boot_IO__AIO) ecb_cold;
891		1087
892	MODULE = IO::AIO PACKAGE = IO::AIO	1088	MODULE = IO::AIO PACKAGE = IO::AIO
893		1089
894	PROTOTYPES: ENABLE	1090	PROTOTYPES: ENABLE
…		…
925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1121	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1122	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1123	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928		1124
929	/* the second block will be 0 when missing */	1125	/* the second block will be 0 when missing */
		1126	const_iv (O_ACCMODE)
		1127
930	const_iv (O_RDONLY)	1128	const_iv (O_RDONLY)
931	const_iv (O_WRONLY)	1129	const_iv (O_WRONLY)
932	const_iv (O_RDWR)	1130	const_iv (O_RDWR)
933	const_iv (O_CREAT)	1131	const_iv (O_CREAT)
934	const_iv (O_TRUNC)	1132	const_iv (O_TRUNC)
…		…
985	const_iv (MAP_SHARED)	1183	const_iv (MAP_SHARED)
986	const_iv (MAP_FIXED)	1184	const_iv (MAP_FIXED)
987	const_iv (MAP_ANONYMOUS)	1185	const_iv (MAP_ANONYMOUS)
988		1186
989	/* linuxish */	1187	/* linuxish */
990	const_iv (MAP_HUGETLB)
991	const_iv (MAP_LOCKED)	1188	const_iv (MAP_LOCKED)
992	const_iv (MAP_NORESERVE)	1189	const_iv (MAP_NORESERVE)
993	const_iv (MAP_POPULATE)	1190	const_iv (MAP_POPULATE)
994	const_iv (MAP_NONBLOCK)	1191	const_iv (MAP_NONBLOCK)
995	const_iv (MAP_GROWSDOWN)	1192	const_iv (MAP_GROWSDOWN)
996	const_iv (MAP_32BIT)	1193	const_iv (MAP_32BIT)
997	const_iv (MAP_HUGETLB)	1194	const_iv (MAP_HUGETLB)
998	const_iv (MAP_STACK)	1195	const_iv (MAP_STACK)
		1196
		1197	const_iv (MREMAP_MAYMOVE)
		1198	const_iv (MREMAP_FIXED)
		1199
		1200	const_iv (F_DUPFD_CLOEXEC)
		1201
		1202	const_iv (MSG_CMSG_CLOEXEC)
		1203	const_iv (SOCK_CLOEXEC)
		1204
		1205	const_iv (F_OFD_GETLK)
		1206	const_iv (F_OFD_SETLK)
		1207	const_iv (F_OFD_GETLKW)
		1208
		1209	const_iv (FIFREEZE)
		1210	const_iv (FITHAW)
		1211	const_iv (FITRIM)
		1212	const_iv (FICLONE)
		1213	const_iv (FICLONERANGE)
		1214	const_iv (FIDEDUPERANGE)
		1215
		1216	const_iv (FS_IOC_GETFLAGS)
		1217	const_iv (FS_IOC_SETFLAGS)
		1218	const_iv (FS_IOC_GETVERSION)
		1219	const_iv (FS_IOC_SETVERSION)
		1220	const_iv (FS_IOC_FIEMAP)
		1221	const_iv (FS_IOC_FSGETXATTR)
		1222	const_iv (FS_IOC_FSSETXATTR)
		1223	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1224	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1225	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1226
		1227	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1228
		1229	const_iv (FS_SECRM_FL)
		1230	const_iv (FS_UNRM_FL)
		1231	const_iv (FS_COMPR_FL)
		1232	const_iv (FS_SYNC_FL)
		1233	const_iv (FS_IMMUTABLE_FL)
		1234	const_iv (FS_APPEND_FL)
		1235	const_iv (FS_NODUMP_FL)
		1236	const_iv (FS_NOATIME_FL)
		1237	const_iv (FS_DIRTY_FL)
		1238	const_iv (FS_COMPRBLK_FL)
		1239	const_iv (FS_NOCOMP_FL)
		1240	const_iv (FS_ENCRYPT_FL)
		1241	const_iv (FS_BTREE_FL)
		1242	const_iv (FS_INDEX_FL)
		1243	const_iv (FS_JOURNAL_DATA_FL)
		1244	const_iv (FS_NOTAIL_FL)
		1245	const_iv (FS_DIRSYNC_FL)
		1246	const_iv (FS_TOPDIR_FL)
		1247	const_iv (FS_FL_USER_MODIFIABLE)
		1248
		1249	const_iv (FS_XFLAG_REALTIME)
		1250	const_iv (FS_XFLAG_PREALLOC)
		1251	const_iv (FS_XFLAG_IMMUTABLE)
		1252	const_iv (FS_XFLAG_APPEND)
		1253	const_iv (FS_XFLAG_SYNC)
		1254	const_iv (FS_XFLAG_NOATIME)
		1255	const_iv (FS_XFLAG_NODUMP)
		1256	const_iv (FS_XFLAG_RTINHERIT)
		1257	const_iv (FS_XFLAG_PROJINHERIT)
		1258	const_iv (FS_XFLAG_NOSYMLINKS)
		1259	const_iv (FS_XFLAG_EXTSIZE)
		1260	const_iv (FS_XFLAG_EXTSZINHERIT)
		1261	const_iv (FS_XFLAG_NODEFRAG)
		1262	const_iv (FS_XFLAG_FILESTREAM)
		1263	const_iv (FS_XFLAG_DAX)
		1264	const_iv (FS_XFLAG_HASATTR)
999		1265
1000	const_iv (FIEMAP_FLAG_SYNC)	1266	const_iv (FIEMAP_FLAG_SYNC)
1001	const_iv (FIEMAP_FLAG_XATTR)	1267	const_iv (FIEMAP_FLAG_XATTR)
1002	const_iv (FIEMAP_FLAGS_COMPAT)	1268	const_iv (FIEMAP_FLAGS_COMPAT)
1003	const_iv (FIEMAP_EXTENT_LAST)	1269	const_iv (FIEMAP_EXTENT_LAST)
…		…
1015	const_iv (SPLICE_F_MOVE)	1281	const_iv (SPLICE_F_MOVE)
1016	const_iv (SPLICE_F_NONBLOCK)	1282	const_iv (SPLICE_F_NONBLOCK)
1017	const_iv (SPLICE_F_MORE)	1283	const_iv (SPLICE_F_MORE)
1018	const_iv (SPLICE_F_GIFT)	1284	const_iv (SPLICE_F_GIFT)
1019		1285
		1286	const_iv (EFD_CLOEXEC)
		1287	const_iv (EFD_NONBLOCK)
		1288	const_iv (EFD_SEMAPHORE)
		1289
		1290	const_iv (CLOCK_REALTIME)
		1291	const_iv (CLOCK_MONOTONIC)
		1292	const_iv (CLOCK_BOOTTIME)
		1293	const_iv (CLOCK_REALTIME_ALARM)
		1294	const_iv (CLOCK_BOOTTIME_ALARM)
		1295
		1296	const_iv (TFD_NONBLOCK)
		1297	const_iv (TFD_CLOEXEC)
		1298
		1299	const_iv (TFD_TIMER_ABSTIME)
		1300	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1301
		1302	const_iv (STATX_TYPE)
		1303	const_iv (STATX_MODE)
		1304	const_iv (STATX_NLINK)
		1305	const_iv (STATX_UID)
		1306	const_iv (STATX_GID)
		1307	const_iv (STATX_ATIME)
		1308	const_iv (STATX_MTIME)
		1309	const_iv (STATX_CTIME)
		1310	const_iv (STATX_INO)
		1311	const_iv (STATX_SIZE)
		1312	const_iv (STATX_BLOCKS)
		1313	const_iv (STATX_BASIC_STATS)
		1314	const_iv (STATX_ALL)
		1315	const_iv (STATX_BTIME)
		1316	const_iv (STATX_ATTR_COMPRESSED)
		1317	const_iv (STATX_ATTR_IMMUTABLE)
		1318	const_iv (STATX_ATTR_APPEND)
		1319	const_iv (STATX_ATTR_NODUMP)
		1320	const_iv (STATX_ATTR_ENCRYPTED)
		1321	const_iv (STATX_ATTR_AUTOMOUNT)
		1322
1020	/* these are libeio constants, and are independent of gendef0 */	1323	/* these are libeio constants, and are independent of gendef0 */
1021	const_eio (SEEK_SET)	1324	const_eio (SEEK_SET)
1022	const_eio (SEEK_CUR)	1325	const_eio (SEEK_CUR)
1023	const_eio (SEEK_END)	1326	const_eio (SEEK_END)
1024		1327
1025	const_eio (MCL_FUTURE)	1328	const_eio (MCL_FUTURE)
1026	const_eio (MCL_CURRENT)	1329	const_eio (MCL_CURRENT)
		1330	const_eio (MCL_ONFAULT)
1027		1331
1028	const_eio (MS_ASYNC)	1332	const_eio (MS_ASYNC)
1029	const_eio (MS_INVALIDATE)	1333	const_eio (MS_INVALIDATE)
1030	const_eio (MS_SYNC)	1334	const_eio (MS_SYNC)
1031		1335
…		…
1037		1341
1038	const_eio (FALLOC_FL_KEEP_SIZE)	1342	const_eio (FALLOC_FL_KEEP_SIZE)
1039	const_eio (FALLOC_FL_PUNCH_HOLE)	1343	const_eio (FALLOC_FL_PUNCH_HOLE)
1040	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1344	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1041	const_eio (FALLOC_FL_ZERO_RANGE)	1345	const_eio (FALLOC_FL_ZERO_RANGE)
		1346	const_eio (FALLOC_FL_INSERT_RANGE)
		1347	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1348
		1349	const_eio (RENAME_NOREPLACE)
		1350	const_eio (RENAME_EXCHANGE)
		1351	const_eio (RENAME_WHITEOUT)
1042		1352
1043	const_eio (READDIR_DENTS)	1353	const_eio (READDIR_DENTS)
1044	const_eio (READDIR_DIRS_FIRST)	1354	const_eio (READDIR_DIRS_FIRST)
1045	const_eio (READDIR_STAT_ORDER)	1355	const_eio (READDIR_STAT_ORDER)
1046	const_eio (READDIR_FOUND_UNKNOWN)	1356	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1064	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1374	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1065	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1375	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1066		1376
1067	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1377	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1068		1378
		1379	/* allocate dummy pipe fd for aio_close */
		1380	{
		1381	int pipefd [2];
		1382
		1383	if (
		1384	#ifdef _WIN32
		1385	_pipe (pipefd, 1, _O_BINARY) < 0
		1386	#else
		1387	pipe (pipefd) < 0
		1388	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1389	#endif
		1390	|| close (pipefd [1]) < 0
		1391	)
		1392	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1393
		1394	close_fd = pipefd [0];
		1395	}
		1396
1069	reinit ();	1397	reinit ();
1070	}	1398	}
1071		1399
1072	void	1400	void
1073	reinit ()	1401	reinit ()
…		…
1195		1523
1196	void	1524	void
1197	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1525	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1198	PPCODE:	1526	PPCODE:
1199	{	1527	{
1200	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1201	int fd = s_fileno_croak (fh, 0);	1528	int fd = s_fileno_croak (fh, 0);
1202	dREQ;	1529	dREQ;
		1530	#if 0
		1531	/* partially duplicate logic in s_fileno */
		1532	SvGETMAGIC (fh);
1203		1533
1204	if (expect_false (close_fd < 0))	1534	if (SvROK (fh))
		1535	{
		1536	fh = SvRV (fh);
		1537	SvGETMAGIC (fh);
		1538	}
		1539
		1540	if (SvTYPE (fh) == SVt_PVGV)
1205	{	1541	{
1206	int pipefd [2];	1542	/* perl filehandle */
		1543	PerlIOUnix_refcnt_inc (fd);
		1544	do_close ((GV *)fh, 1);
1207		1545
1208	if (	1546	req->type = EIO_CLOSE;
1209	#ifdef _WIN32	1547	req->int1 = fd;
1210	_pipe (pipefd, 1, _O_BINARY) < 0	1548	/*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	}	1549	}
1221		1550	else
		1551	#endif
		1552	{
		1553	/* fd number */
1222	req->type = EIO_DUP2;	1554	req->type = EIO_DUP2;
1223	req->int1 = close_fd;	1555	req->int1 = close_fd;
1224	req->sv2 = newSVsv (fh);	1556	req->sv2 = newSVsv (fh);
1225	req->int2 = fd;	1557	req->int2 = fd;
		1558	}
1226		1559
1227	REQ_SEND;	1560	REQ_SEND;
1228	}	1561	}
1229		1562
1230	void	1563	void
…		…
1297	REQ_SEND;	1630	REQ_SEND;
1298	}	1631	}
1299	}	1632	}
1300		1633
1301	void	1634	void
		1635	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1636	ALIAS:
		1637	aio_ioctl = EIO_IOCTL
		1638	aio_fcntl = EIO_FCNTL
		1639	PPCODE:
		1640	{
		1641	int fd = s_fileno_croak (fh, 0);
		1642	char *svptr;
		1643
		1644	if (SvPOK (arg) || !SvNIOK (arg))
		1645	{
		1646	STRLEN svlen;
		1647	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1648	#ifdef IOCPARM_LEN
		1649	STRLEN need = IOCPARM_LEN (request);
		1650	#else
		1651	STRLEN need = 256;
		1652	#endif
		1653
		1654	if (svlen < need)
		1655	svptr = SvGROW (arg, need);
		1656	}
		1657	else
		1658	svptr = (char *)SvIV (arg);
		1659
		1660	{
		1661	dREQ;
		1662
		1663	req->type = ix;
		1664	req->sv1 = newSVsv (fh);
		1665	req->int1 = fd;
		1666	req->int2 = (long)request;
		1667	req->sv2 = SvREFCNT_inc (arg);
		1668	req->ptr2 = svptr;
		1669
		1670	REQ_SEND;
		1671	}
		1672	}
		1673
		1674	void
1302	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1675	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1303	ALIAS:	1676	ALIAS:
1304	aio_readlink = EIO_READLINK	1677	aio_readlink = EIO_READLINK
1305	aio_realpath = EIO_REALPATH	1678	aio_realpath = EIO_REALPATH
1306	PPCODE:	1679	PPCODE:
…		…
1361	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1734	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1362		1735
1363	REQ_SEND;	1736	REQ_SEND;
1364	}	1737	}
1365		1738
		1739	void
		1740	st_xtime ()
		1741	ALIAS:
		1742	st_atime = 0x01
		1743	st_mtime = 0x02
		1744	st_ctime = 0x04
		1745	st_btime = 0x08
		1746	st_xtime = 0x0f
		1747	PPCODE:
		1748	EXTEND (SP, 4);
		1749	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1750	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1751	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1752	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1753
		1754	void
		1755	st_xtimensec ()
		1756	ALIAS:
		1757	st_atimensec = 0x01
		1758	st_mtimensec = 0x02
		1759	st_ctimensec = 0x04
		1760	st_btimensec = 0x08
		1761	st_xtimensec = 0x0f
		1762	st_btimesec = 0x10
		1763	st_gen = 0x20
		1764	PPCODE:
		1765	EXTEND (SP, 4);
		1766	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1767	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1768	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1769	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1770	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1771	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1772
1366	UV	1773	UV
1367	major (UV dev)	1774	major (UV dev)
1368	ALIAS:	1775	ALIAS:
1369	minor = 1	1776	minor = 1
1370	CODE:	1777	CODE:
1371	RETVAL = ix ? major (dev) : minor (dev);	1778	RETVAL = ix ? minor (dev) : major (dev);
1372	OUTPUT:	1779	OUTPUT:
1373	RETVAL	1780	RETVAL
1374		1781
1375	UV	1782	UV
1376	makedev (UV maj, UV min)	1783	makedev (UV maj, UV min)
…		…
1486	eio_wd wd2 = 0;	1893	eio_wd wd2 = 0;
1487	dREQ;	1894	dREQ;
1488		1895
1489	req->type = ix;	1896	req->type = ix;
1490	req_set_path1 (req, oldpath);	1897	req_set_path1 (req, oldpath);
1491	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1898	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1899	req->int3 = (long)wd2;
		1900
		1901	REQ_SEND;
		1902	}
		1903
		1904	void
		1905	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1906	PPCODE:
		1907	{
		1908	eio_wd wd2 = 0;
		1909	dREQ;
		1910
		1911	req->type = EIO_RENAME;
		1912	req_set_path1 (req, oldpath);
		1913	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1914	req->int2 = flags;
1492	req->int3 = (long)wd2;	1915	req->int3 = (long)wd2;
1493		1916
1494	REQ_SEND;	1917	REQ_SEND;
1495	}	1918	}
1496		1919
…		…
1507		1930
1508	REQ_SEND;	1931	REQ_SEND;
1509	}	1932	}
1510		1933
1511	void	1934	void
1512	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1935	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1513	ALIAS:	1936	ALIAS:
1514	aio_mtouch = EIO_MTOUCH	1937	aio_mtouch = EIO_MTOUCH
1515	aio_msync = EIO_MSYNC	1938	aio_msync = EIO_MSYNC
1516	PPCODE:	1939	PPCODE:
1517	{	1940	{
1518	STRLEN svlen;	1941	STRLEN svlen;
1519	char *svptr = SvPVbyte (data, svlen);	1942	char *svptr = SvPVbyte (data, svlen);
1520	UV len = SvUV (length);	1943	UV len = SvUV (length);
		1944
		1945	if (flags < 0)
		1946	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1521		1947
1522	if (offset < 0)	1948	if (offset < 0)
1523	offset += svlen;	1949	offset += svlen;
1524		1950
1525	if (offset < 0 || offset > svlen)	1951	if (offset < 0 || offset > svlen)
…		…
1601	req->int2 = flags;	2027	req->int2 = flags;
1602	req->int3 = SvOK (count) ? SvIV (count) : -1;	2028	req->int3 = SvOK (count) ? SvIV (count) : -1;
1603	#endif	2029	#endif
1604		2030
1605	REQ_SEND;	2031	REQ_SEND;
		2032	}
		2033
		2034	void
		2035	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2036	PPCODE:
		2037	{
		2038	char *svptr = 0;
		2039
		2040	sv_clear_foreign (data);
		2041
		2042	if (length) /* known length, directly read into scalar */
		2043	{
		2044	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2045	svptr = sv_grow (data, length + 1);
		2046	else if (SvCUR (data) < length)
		2047	croak ("length outside of scalar, and cannot grow");
		2048	else
		2049	svptr = SvPVbyte_nolen (data);
		2050	}
		2051
		2052	{
		2053	dREQ;
		2054
		2055	req->type = EIO_SLURP;
		2056	req_set_path1 (req, pathname);
		2057	req->offs = offset;
		2058	req->size = length;
		2059	req->sv2 = SvREFCNT_inc (data);
		2060	req->ptr2 = svptr;
		2061
		2062	if (!SvREADONLY (data))
		2063	{
		2064	SvREADONLY_on (data);
		2065	req->flags |= FLAG_SV2_RO_OFF;
		2066	}
		2067
		2068	REQ_SEND;
		2069	}
1606	}	2070	}
1607		2071
1608	void	2072	void
1609	aio_busy (double delay, SV *callback = &PL_sv_undef)	2073	aio_busy (double delay, SV *callback = &PL_sv_undef)
1610	PPCODE:	2074	PPCODE:
…		…
1747	RETVAL	2211	RETVAL
1748		2212
1749	void	2213	void
1750	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2214	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1751	PPCODE:	2215	PPCODE:
1752	sv_unmagic (scalar, MMAP_MAGIC);	2216	sv_clear_foreign (scalar);
1753	{	2217	{
1754	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2218	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1755	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2219	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1756	if (addr == (void *)-1)	2220	if (addr == (void *)-1)
1757	XSRETURN_NO;	2221	XSRETURN_NO;
1758		2222
1759	sv_force_normal (scalar);	2223	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		2224
1767	if (!(prot & PROT_WRITE))	2225	if (!(prot & PROT_WRITE))
1768	SvREADONLY_on (scalar);	2226	SvREADONLY_on (scalar);
1769		2227
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;	2228	XSRETURN_YES;
1779	}	2229	}
1780		2230
1781	void	2231	void
1782	munmap (SV *scalar)	2232	munmap (SV *scalar)
1783	CODE:	2233	CODE:
1784	sv_unmagic (scalar, MMAP_MAGIC);	2234	sv_clear_foreign (scalar);
		2235
		2236	SV *
		2237	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2238	CODE:
		2239	{
		2240	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2241	void *new;
		2242
		2243	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2244	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2245
		2246	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2247
		2248	RETVAL = &PL_sv_no;
		2249
		2250	if (new != (void *)-1)
		2251	{
		2252	RETVAL = new == (void *)mg->mg_ptr
		2253	? newSVpvn ("0 but true", 10)
		2254	: &PL_sv_yes;
		2255
		2256	mg->mg_ptr = (char *)new;
		2257	mg->mg_obj = (SV *)new_length;
		2258
		2259	SvPVX (scalar) = mg->mg_ptr;
		2260	SvCUR_set (scalar, new_length);
		2261	}
		2262	}
		2263	OUTPUT:
		2264	RETVAL
1785		2265
1786	int	2266	int
1787	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2267	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1788	ALIAS:	2268	ALIAS:
1789	mprotect = 1	2269	mprotect = 1
1790	CODE:	2270	CODE:
1791	{	2271	{
1792	STRLEN svlen;	2272	STRLEN svlen;
…		…
1813	}	2293	}
1814	OUTPUT:	2294	OUTPUT:
1815	RETVAL	2295	RETVAL
1816		2296
1817	int	2297	int
1818	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2298	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1819	CODE:	2299	CODE:
1820	{	2300	{
1821	STRLEN svlen;	2301	STRLEN svlen;
1822	void *addr = SvPVbyte (scalar, svlen);	2302	void *addr = SvPVbyte (scalar, svlen);
1823	size_t len = SvUV (length);	2303	size_t len = SvUV (length);
…		…
1838	#else	2318	#else
1839	RETVAL = EIO_ENOSYS ();	2319	RETVAL = EIO_ENOSYS ();
1840	#endif	2320	#endif
1841	}	2321	}
1842	OUTPUT:	2322	OUTPUT:
		2323	RETVAL
		2324
		2325	int
		2326	mlockall (int flags)
		2327	PROTOTYPE: $;
		2328	CODE:
		2329	RETVAL = eio_mlockall_sync (flags);
		2330	OUTPUT:
1843	RETVAL	2331	RETVAL
1844		2332
1845	int	2333	int
1846	munlockall ()	2334	munlockall ()
1847	CODE:	2335	CODE:
…		…
1849	munlockall ();	2337	munlockall ();
1850	#else	2338	#else
1851	RETVAL = EIO_ENOSYS ();	2339	RETVAL = EIO_ENOSYS ();
1852	#endif	2340	#endif
1853	OUTPUT:	2341	OUTPUT:
		2342	RETVAL
		2343
		2344	int
		2345	statx (SV8 *pathname, int flags, UV mask)
		2346	CODE:
		2347	{
		2348	/* undocumented, and might go away, and anyway, should use eio_statx */
		2349	SV *wdsv = 0;
		2350	SV *pathsv = 0;
		2351	eio_wd wd = EIO_CWD;
		2352	void *ptr;
		2353	int res;
		2354
		2355	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2356	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2357
		2358	SvREFCNT_dec (pathsv);
		2359	SvREFCNT_dec (wdsv);
		2360	}
		2361	OUTPUT:
		2362	RETVAL
		2363
		2364	U32
		2365	stx_mode ()
		2366	PROTOTYPE:
		2367	CODE:
		2368	#if HAVE_STATX
		2369	RETVAL = stx.stx_mode;
		2370	#else
		2371	XSRETURN_UNDEF;
		2372	#endif
		2373	OUTPUT:
		2374	RETVAL
		2375
		2376	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2377	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2378	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2379	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2380	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2381	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2382	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2383	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2384	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2385	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2386	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2387	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2388	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2389	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2390	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2391	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2392	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2393	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2394
		2395	U32
		2396	stx_mask ()
		2397	PROTOTYPE:
		2398	ALIAS:
		2399	stx_mask = STATX_OFFSET_mask
		2400	stx_blksize = STATX_OFFSET_blksize
		2401	stx_nlink = STATX_OFFSET_nlink
		2402	stx_uid = STATX_OFFSET_uid
		2403	stx_gid = STATX_OFFSET_gid
		2404	stx_rdev_major = STATX_OFFSET_rdev_major
		2405	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2406	stx_dev_major = STATX_OFFSET_dev_major
		2407	stx_dev_minor = STATX_OFFSET_dev_minor
		2408	CODE:
		2409	#if HAVE_STATX
		2410	RETVAL = *(__u32 *)((char *)&stx + ix);
		2411	#else
		2412	XSRETURN_UNDEF;
		2413	#endif
		2414	OUTPUT:
		2415	RETVAL
		2416
		2417	VAL64
		2418	stx_attributes ()
		2419	PROTOTYPE:
		2420	ALIAS:
		2421	stx_attributes = STATX_OFFSET_attributes
		2422	stx_ino = STATX_OFFSET_ino
		2423	stx_size = STATX_OFFSET_size
		2424	stx_blocks = STATX_OFFSET_blocks
		2425	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2426	CODE:
		2427	#if HAVE_STATX
		2428	RETVAL = *(__u64 *)((char *)&stx + ix);
		2429	#else
		2430	XSRETURN_UNDEF;
		2431	#endif
		2432	OUTPUT:
		2433	RETVAL
		2434
		2435	NV
		2436	stx_atime ()
		2437	PROTOTYPE:
		2438	ALIAS:
		2439	stx_atime = STATX_OFFSET_atime
		2440	stx_btime = STATX_OFFSET_btime
		2441	stx_ctime = STATX_OFFSET_ctime
		2442	stx_mtime = STATX_OFFSET_mtime
		2443	CODE:
		2444	#if HAVE_STATX
		2445	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2446	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2447	#else
		2448	XSRETURN_UNDEF;
		2449	#endif
		2450	OUTPUT:
		2451	RETVAL
		2452
		2453	VAL64
		2454	stx_atimesec ()
		2455	PROTOTYPE:
		2456	ALIAS:
		2457	stx_atimesec = STATX_OFFSET_atime
		2458	stx_btimesec = STATX_OFFSET_btime
		2459	stx_ctimesec = STATX_OFFSET_ctime
		2460	stx_mtimesec = STATX_OFFSET_mtime
		2461	CODE:
		2462	#if HAVE_STATX
		2463	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2464	RETVAL = ts->tv_sec;
		2465	#else
		2466	XSRETURN_UNDEF;
		2467	#endif
		2468	OUTPUT:
		2469	RETVAL
		2470
		2471	U32
		2472	stx_atimensec ()
		2473	PROTOTYPE:
		2474	ALIAS:
		2475	stx_atimensec = STATX_OFFSET_atime
		2476	stx_btimensec = STATX_OFFSET_btime
		2477	stx_ctimensec = STATX_OFFSET_ctime
		2478	stx_mtimensec = STATX_OFFSET_mtime
		2479	CODE:
		2480	#if HAVE_STATX
		2481	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2482	RETVAL = ts->tv_nsec;
		2483	#else
		2484	RETVAL = 0;
		2485	#endif
		2486	OUTPUT:
1854	RETVAL	2487	RETVAL
1855		2488
1856	int	2489	int
1857	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2490	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1858	CODE:	2491	CODE:
…		…
1919	{	2552	{
1920	EXTEND (SP, 2);	2553	EXTEND (SP, 2);
1921	PUSHs (newmortalFH (fd[0], O_RDONLY));	2554	PUSHs (newmortalFH (fd[0], O_RDONLY));
1922	PUSHs (newmortalFH (fd[1], O_WRONLY));	2555	PUSHs (newmortalFH (fd[1], O_WRONLY));
1923	}	2556	}
		2557	}
		2558
		2559	void
		2560	eventfd (unsigned int initval = 0, int flags = 0)
		2561	PPCODE:
		2562	{
		2563	int fd;
		2564	#if HAVE_EVENTFD
		2565	fd = eventfd (initval, flags);
		2566	#else
		2567	fd = (errno = ENOSYS, -1);
		2568	#endif
		2569
		2570	XPUSHs (newmortalFH (fd, O_RDWR));
		2571	}
		2572
		2573	void
		2574	timerfd_create (int clockid, int flags = 0)
		2575	PPCODE:
		2576	{
		2577	int fd;
		2578	#if HAVE_TIMERFD
		2579	fd = timerfd_create (clockid, flags);
		2580	#else
		2581	fd = (errno = ENOSYS, -1);
		2582	#endif
		2583
		2584	XPUSHs (newmortalFH (fd, O_RDWR));
		2585	}
		2586
		2587	void
		2588	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2589	PPCODE:
		2590	{
		2591	int fd = s_fileno_croak (fh, 0);
		2592	#if HAVE_TIMERFD
		2593	int res;
		2594	struct itimerspec its, ots;
		2595
		2596	ts_set (&its.it_interval, interval);
		2597	ts_set (&its.it_value , value);
		2598	res = timerfd_settime (fd, flags, &its, &ots);
		2599
		2600	if (!res)
		2601	{
		2602	EXTEND (SP, 2);
		2603	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2604	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2605	}
		2606	#else
		2607	errno = ENOSYS;
		2608	#endif
		2609	}
		2610
		2611	void
		2612	timerfd_gettime (SV *fh)
		2613	PPCODE:
		2614	{
		2615	int fd = s_fileno_croak (fh, 0);
		2616	#if HAVE_TIMERFD
		2617	int res;
		2618	struct itimerspec ots;
		2619	res = timerfd_gettime (fd, &ots);
		2620
		2621	if (!res)
		2622	{
		2623	EXTEND (SP, 2);
		2624	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2625	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2626	}
		2627	#else
		2628	errno = ENOSYS;
		2629	#endif
		2630	}
		2631
		2632	UV
		2633	get_fdlimit ()
		2634	CODE:
		2635	#if HAVE_RLIMITS
		2636	struct rlimit rl;
		2637	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2638	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2639	#endif
		2640	XSRETURN_UNDEF;
		2641	OUTPUT:
		2642	RETVAL
		2643
		2644	void
		2645	min_fdlimit (UV limit = 0x7fffffffU)
		2646	CODE:
		2647	{
		2648	#if HAVE_RLIMITS
		2649	struct rlimit rl;
		2650	rlim_t orig_rlim_max;
		2651	UV bit;
		2652
		2653	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2654	goto fail;
		2655
		2656	if (rl.rlim_cur == RLIM_INFINITY)
		2657	XSRETURN_YES;
		2658
		2659	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2660
		2661	if (rl.rlim_cur < limit)
		2662	{
		2663	rl.rlim_cur = limit;
		2664
		2665	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2666	rl.rlim_max = rl.rlim_cur;
		2667	}
		2668
		2669	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2670	XSRETURN_YES;
		2671
		2672	if (errno == EPERM)
		2673	{
		2674	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2675	/* our limit overflows a system-wide limit */
		2676	/* try an adaptive algorithm, but do not lower the hardlimit */
		2677	rl.rlim_max = 0;
		2678	for (bit = 0x40000000U; bit; bit >>= 1)
		2679	{
		2680	rl.rlim_max |= bit;
		2681	rl.rlim_cur = rl.rlim_max;
		2682
		2683	/* nevr decrease the hard limit */
		2684	if (rl.rlim_max < orig_rlim_max)
		2685	break;
		2686
		2687	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2688	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2689	}
		2690
		2691	/* now, raise the soft limit to the max permitted */
		2692	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2693	{
		2694	rl.rlim_cur = rl.rlim_max;
		2695	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2696	errno = EPERM;
		2697	}
		2698	}
		2699	#endif
		2700	fail:
		2701	XSRETURN_UNDEF;
1924	}	2702	}
1925		2703
1926	void _on_next_submit (SV *cb)	2704	void _on_next_submit (SV *cb)
1927	CODE:	2705	CODE:
1928	SvREFCNT_dec (on_next_submit);	2706	SvREFCNT_dec (on_next_submit);

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