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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.237 by root, Thu Jun 25 18:08:47 2015 UTC vs.
Revision 1.286 by root, Tue Dec 29 15:25:26 2020 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>
22	#endif
23
24	/* the incompetent fool that created musl keeps __linux__, refuses	24	/* the incompetent fool that created musl keeps __linux__, refuses
25	* to implement any linux standard apis, and also has no way to test	25	* to implement any linux standard apis, and also has no way to test
26	* for his broken iplementation. on't complain if this fails for you.	26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
27	*/	28	*/
28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)	29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29	# include <linux/fs.h>	30	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	32	# include <linux/types.h>
…		…
74	#undef fchmod	75	#undef fchmod
75	#undef dup	76	#undef dup
76	#undef dup2	77	#undef dup2
77	#undef abort	78	#undef abort
78	#undef pipe	79	#undef pipe
		80	#undef utime
79		81
80	#define EIO_STRUCT_STAT struct _stati64	82	#define EIO_STRUCT_STAT struct _stati64
81	#define EIO_STRUCT_STATI64	83	#define EIO_STRUCT_STATI64
82		84
83	#else	85	#else
…		…
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	#if HAVE_SYSCALL
		232	#include <sys/syscall.h>
		233	#else
		234	# define syscall(nr,...) (errno = ENOSYS, -1)
		235	#endif
		236
		237	/*****************************************************************************/
		238
		239	#if !_POSIX_MAPPED_FILES
		240	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		241	# define munmap(addr,length) EIO_ENOSYS ()
		242	#endif
		243
		244	#if !_POSIX_MEMORY_PROTECTION
		245	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		246	#endif
		247
		248	#if !MREMAP_MAYMOVE
		249	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		250	#endif
		251
		252	#define FOREIGN_MAGIC PERL_MAGIC_ext
		253
		254	static int ecb_cold
		255	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		256	{
		257	int old_errno = errno;
		258	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		259	errno = old_errno;
		260
		261	mg->mg_obj = 0; /* just in case */
		262
		263	SvREADONLY_off (sv);
		264
		265	if (SvPVX (sv) != mg->mg_ptr)
		266	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		267
		268	SvCUR_set (sv, 0);
		269	SvPVX (sv) = 0;
		270	SvOK_off (sv);
		271
		272	return 0;
		273	}
		274
		275	static MGVTBL mmap_vtbl = {
		276	0, 0, 0, 0, mmap_free
		277	};
		278
		279	static int ecb_cold
		280	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		281	{
		282	free (mg->mg_ptr);
		283	mg->mg_obj = 0; /* just in case */
		284
		285	SvREADONLY_off (sv);
		286
		287	if (SvPVX (sv) != mg->mg_ptr)
		288	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		289
		290	SvCUR_set (sv, 0);
		291	SvPVX (sv) = 0;
		292	SvOK_off (sv);
		293
		294	return 0;
		295	}
		296
		297	static MGVTBL sysfree_vtbl = {
		298	0, 0, 0, 0, sysfree_free
		299	};
		300
		301	/*****************************************************************************/
		302
		303	/* helper: set scalar to foreign ptr with custom free */
		304	ecb_noinline
		305	static void
		306	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		307	{
		308	sv_force_normal (sv);
		309
		310	/* we store the length in mg_obj, as namlen is I32 :/ */
		311	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		312	->mg_obj = (SV *)length;
		313
		314	SvUPGRADE (sv, SVt_PV); /* nop... */
		315
		316	if (SvLEN (sv))
		317	Safefree (SvPVX (sv));
		318
		319	SvPVX (sv) = (char *)addr;
		320	SvCUR_set (sv, length);
		321	SvLEN_set (sv, 0);
		322	SvPOK_only (sv);
		323	}
		324
		325	static void
		326	sv_clear_foreign (SV *sv)
		327	{
		328	/* todo: iterate over magic and only free ours, but of course */
		329	/* the perl5porters will call that (correct) behaviour buggy */
		330	sv_unmagic (sv, FOREIGN_MAGIC);
		331	}
		332
		333	/*****************************************************************************/
		334
149	/* defines all sorts of constants to 0 unless they are already defined */	335	/* defines all sorts of constants to 0 unless they are already defined */
150	/* also provides const_iv_ and const_niv_ macros for them */	336	/* also provides const_iv_ and const_niv_ macros for them */
151	#include "def0.h"	337	#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		338
167	/*****************************************************************************/	339	/*****************************************************************************/
168		340
169	static void	341	static void
170	fiemap (eio_req *req)	342	fiemap (eio_req *req)
…		…
178	int count = req->int3;	350	int count = req->int3;
179		351
180	req->flags |= EIO_FLAG_PTR1_FREE;	352	req->flags |= EIO_FLAG_PTR1_FREE;
181		353
182	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */	354	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
183	/* increase in 3.5kb steps */	355	/* increase in fixed steps */
184	if (count < 0)	356	if (count < 0)
185	count = 8;	357	count = 8;
186		358
187	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	359	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
188	errno = ENOMEM;	360	errno = ENOMEM;
…		…
241		413
242	for (count = 0; count < incmap->fm_mapped_extents; ++count)	414	for (count = 0; count < incmap->fm_mapped_extents; ++count)
243	{	415	{
244	struct fiemap_extent *e = incmap->fm_extents + count;	416	struct fiemap_extent *e = incmap->fm_extents + count;
245		417
		418	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		419
246	if (e->fe_logical + e->fe_length >= end_offset)	420	if (e->fe_logical >= end_offset)
247	goto done;	421	goto done;
248
249	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
250		422
251	if (e->fe_flags & FIEMAP_EXTENT_LAST)	423	if (e->fe_flags & FIEMAP_EXTENT_LAST)
252	goto done;	424	goto done;
253		425
254	}	426	}
…		…
261	errno = ENOSYS;	433	errno = ENOSYS;
262	#endif	434	#endif
263	}	435	}
264		436
265	/*****************************************************************************/	437	/*****************************************************************************/
		438
		439	static int close_fd; /* dummy fd to close fds via dup2 */
		440
		441	#if HAVE_STATX
		442	static struct statx stx;
		443	#define statx_offsetof(member) offsetof (struct statx, member)
		444	#define eio__statx statx
		445	#else
		446	#define statx_offsetof(member) 0
		447	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		448	#endif
266		449
267	enum {	450	enum {
268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	451	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
269	};	452	};
270		453
…		…
294	/* read any signals sent by the worker threads */	477	/* read any signals sent by the worker threads */
295	s_epipe_drain (&respipe);	478	s_epipe_drain (&respipe);
296	}	479	}
297		480
298	/* must be called at most once */	481	/* must be called at most once */
		482	ecb_noinline
299	static SV *	483	static SV *
300	req_sv (aio_req req, HV *stash)	484	req_sv (aio_req req, HV *stash)
301	{	485	{
302	if (!req->self)	486	if (!req->self)
303	{	487	{
…		…
312	newSVaio_wd (aio_wd wd)	496	newSVaio_wd (aio_wd wd)
313	{	497	{
314	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);	498	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315	}	499	}
316		500
		501	ecb_noinline
317	static aio_req	502	static aio_req
318	SvAIO_REQ (SV *sv)	503	SvAIO_REQ (SV *sv)
319	{	504	{
320	MAGIC *mg;	505	MAGIC *mg;
321		506
…		…
384	FREETMPS;	569	FREETMPS;
385	LEAVE;	570	LEAVE;
386	}	571	}
387	}	572	}
388		573
		574	ecb_noinline
389	static void	575	static void
390	req_submit (eio_req *req)	576	req_submit (eio_req *req)
391	{	577	{
392	eio_submit (req);	578	eio_submit (req);
393		579
…		…
590	SvSETMAGIC (req->sv2);	776	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	777	PUSHs (sv_result);
592	}	778	}
593	break;	779	break;
594		780
		781	case EIO_SLURP:
		782	{
		783	if (req->result >= 0)
		784	{
		785	/* if length was originally not known, we steal the malloc'ed memory */
		786	if (req->flags & EIO_FLAG_PTR2_FREE)
		787	{
		788	req->flags &= ~EIO_FLAG_PTR2_FREE;
		789	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		790	}
		791	else
		792	{
		793	SvCUR_set (req->sv2, req->result);
		794	*SvEND (req->sv2) = 0;
		795	SvPOK_only (req->sv2);
		796	}
		797
		798	SvSETMAGIC (req->sv2);
		799	}
		800
		801	PUSHs (sv_result);
		802	}
		803	break;
		804
595	case EIO_CUSTOM:	805	case EIO_CUSTOM:
596	if (req->feed == fiemap)	806	if (req->feed == fiemap)
597	{	807	{
598	#if HAVE_FIEMAP	808	#if HAVE_FIEMAP
599	if (!req->result)	809	if (!req->result)
…		…
630	}	840	}
631	else	841	else
632	PUSHs (sv_result);	842	PUSHs (sv_result);
633	break;	843	break;
634		844
		845	#if 0
		846	case EIO_CLOSE:
		847	PerlIOUnix_refcnt_dec (req->int1);
		848	break;
		849	#endif
		850
635	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	851	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
636	if (req->result > 0)	852	if (req->result > 0)
637	SvIV_set (sv_result, 0);	853	SvIV_set (sv_result, 0);
638	/* FALLTHROUGH */	854	/* FALLTHROUGH */
639		855
…		…
690	grp->sv2 = 0;	906	grp->sv2 = 0;
691		907
692	eio_grp_cancel (grp);	908	eio_grp_cancel (grp);
693	}	909	}
694		910
695	static void ecb_cold	911	ecb_cold
		912	static void
696	create_respipe (void)	913	create_respipe (void)
697	{	914	{
698	if (s_epipe_renew (&respipe))	915	if (s_epipe_renew (&respipe))
699	croak ("IO::AIO: unable to initialize result pipe");	916	croak ("IO::AIO: unable to initialize result pipe");
700	}	917	}
…		…
734		951
735	poll_wait ();	952	poll_wait ();
736	}	953	}
737	}	954	}
738		955
739	static void ecb_cold	956	ecb_cold
		957	static void
740	reinit (void)	958	reinit (void)
741	{	959	{
742	create_respipe ();	960	create_respipe ();
743		961
744	if (eio_init (want_poll, done_poll) < 0)	962	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	963	croak ("IO::AIO: unable to initialise eio library");
746	}	964	}
747		965
748	/*****************************************************************************/	966	/*****************************************************************************/
749		967
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 *	968	static SV *
789	get_cb (SV *cb_sv)	969	get_cb (SV *cb_sv)
790	{	970	{
791	SvGETMAGIC (cb_sv);	971	SvGETMAGIC (cb_sv);
792	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	972	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793	}	973	}
794		974
		975	ecb_noinline
795	static aio_req ecb_noinline	976	static aio_req ecb_noinline
796	dreq (SV *callback)	977	dreq (SV *callback)
797	{	978	{
798	SV *cb_cv;	979	SV *cb_cv;
799	aio_req req;	980	aio_req req;
…		…
821	SPAGAIN; \	1002	SPAGAIN; \
822	\	1003	\
823	if (GIMME_V != G_VOID) \	1004	if (GIMME_V != G_VOID) \
824	XPUSHs (req_sv (req, aio_req_stash));	1005	XPUSHs (req_sv (req, aio_req_stash));
825		1006
		1007	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
826	ecb_inline void	1008	ecb_inline
		1009	void
827	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	1010	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
828	{	1011	{
829	if (expect_false (SvROK (path)))	1012	if (expect_false (SvROK (path)))
830	{	1013	{
831	SV *rv = SvRV (path);	1014	SV *rv = SvRV (path);
832	SV *wdob;	1015	SV *wdob;
…		…
857		1040
858	*pathsv = newSVsv (path);	1041	*pathsv = newSVsv (path);
859	*ptr = SvPVbyte_nolen (*pathsv);	1042	*ptr = SvPVbyte_nolen (*pathsv);
860	}	1043	}
861		1044
862	static void ecb_noinline	1045	ecb_noinline
		1046	static void
863	req_set_path1 (aio_req req, SV *path)	1047	req_set_path1 (aio_req req, SV *path)
864	{	1048	{
865	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1049	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
866	}	1050	}
867		1051
868	static void ecb_noinline	1052	ecb_noinline
		1053	static void
869	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1054	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
870	{	1055	{
871	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1056	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
872		1057
873	switch (SvTYPE (rv))	1058	switch (SvTYPE (rv))
…		…
885	req_set_path1 (req, fh_or_path);	1070	req_set_path1 (req, fh_or_path);
886	break;	1071	break;
887	}	1072	}
888	}	1073	}
889		1074
		1075	/*****************************************************************************/
		1076
		1077	static void
		1078	ts_set (struct timespec *ts, NV value)
		1079	{
		1080	ts->tv_sec = value;
		1081	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1082	}
		1083
		1084	static NV
		1085	ts_get (const struct timespec *ts)
		1086	{
		1087	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1088	}
		1089
		1090	/*****************************************************************************/
		1091
890	XS(boot_IO__AIO) ecb_cold;	1092	XS(boot_IO__AIO) ecb_cold;
891		1093
892	MODULE = IO::AIO PACKAGE = IO::AIO	1094	MODULE = IO::AIO PACKAGE = IO::AIO
893		1095
894	PROTOTYPES: ENABLE	1096	PROTOTYPES: ENABLE
…		…
925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1127	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1128	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1129	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928		1130
929	/* the second block will be 0 when missing */	1131	/* the second block will be 0 when missing */
		1132	const_iv (O_ACCMODE)
		1133
930	const_iv (O_RDONLY)	1134	const_iv (O_RDONLY)
931	const_iv (O_WRONLY)	1135	const_iv (O_WRONLY)
932	const_iv (O_RDWR)	1136	const_iv (O_RDWR)
933	const_iv (O_CREAT)	1137	const_iv (O_CREAT)
934	const_iv (O_TRUNC)	1138	const_iv (O_TRUNC)
…		…
985	const_iv (MAP_SHARED)	1189	const_iv (MAP_SHARED)
986	const_iv (MAP_FIXED)	1190	const_iv (MAP_FIXED)
987	const_iv (MAP_ANONYMOUS)	1191	const_iv (MAP_ANONYMOUS)
988		1192
989	/* linuxish */	1193	/* linuxish */
990	const_iv (MAP_HUGETLB)
991	const_iv (MAP_LOCKED)	1194	const_iv (MAP_LOCKED)
992	const_iv (MAP_NORESERVE)	1195	const_iv (MAP_NORESERVE)
993	const_iv (MAP_POPULATE)	1196	const_iv (MAP_POPULATE)
994	const_iv (MAP_NONBLOCK)	1197	const_iv (MAP_NONBLOCK)
995	const_iv (MAP_GROWSDOWN)	1198	const_iv (MAP_GROWSDOWN)
996	const_iv (MAP_32BIT)	1199	const_iv (MAP_32BIT)
997	const_iv (MAP_HUGETLB)	1200	const_iv (MAP_HUGETLB)
998	const_iv (MAP_STACK)	1201	const_iv (MAP_STACK)
		1202
		1203	const_iv (MREMAP_MAYMOVE)
		1204	const_iv (MREMAP_FIXED)
		1205
		1206	const_iv (MSG_CMSG_CLOEXEC)
		1207	const_iv (SOCK_CLOEXEC)
		1208
		1209	const_iv (F_DUPFD_CLOEXEC)
		1210
		1211	const_iv (F_ADD_SEALS)
		1212	const_iv (F_GET_SEALS)
		1213	const_iv (F_SEAL_SEAL)
		1214	const_iv (F_SEAL_SHRINK)
		1215	const_iv (F_SEAL_GROW)
		1216	const_iv (F_SEAL_WRITE)
		1217
		1218	const_iv (F_OFD_GETLK)
		1219	const_iv (F_OFD_SETLK)
		1220	const_iv (F_OFD_GETLKW)
		1221
		1222	const_iv (FIFREEZE)
		1223	const_iv (FITHAW)
		1224	const_iv (FITRIM)
		1225	const_iv (FICLONE)
		1226	const_iv (FICLONERANGE)
		1227	const_iv (FIDEDUPERANGE)
		1228
		1229	const_iv (FS_IOC_GETFLAGS)
		1230	const_iv (FS_IOC_SETFLAGS)
		1231	const_iv (FS_IOC_GETVERSION)
		1232	const_iv (FS_IOC_SETVERSION)
		1233	const_iv (FS_IOC_FIEMAP)
		1234	const_iv (FS_IOC_FSGETXATTR)
		1235	const_iv (FS_IOC_FSSETXATTR)
		1236	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1237	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1238	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1239
		1240	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1241
		1242	const_iv (FS_SECRM_FL)
		1243	const_iv (FS_UNRM_FL)
		1244	const_iv (FS_COMPR_FL)
		1245	const_iv (FS_SYNC_FL)
		1246	const_iv (FS_IMMUTABLE_FL)
		1247	const_iv (FS_APPEND_FL)
		1248	const_iv (FS_NODUMP_FL)
		1249	const_iv (FS_NOATIME_FL)
		1250	const_iv (FS_DIRTY_FL)
		1251	const_iv (FS_COMPRBLK_FL)
		1252	const_iv (FS_NOCOMP_FL)
		1253	const_iv (FS_ENCRYPT_FL)
		1254	const_iv (FS_BTREE_FL)
		1255	const_iv (FS_INDEX_FL)
		1256	const_iv (FS_JOURNAL_DATA_FL)
		1257	const_iv (FS_NOTAIL_FL)
		1258	const_iv (FS_DIRSYNC_FL)
		1259	const_iv (FS_TOPDIR_FL)
		1260	const_iv (FS_FL_USER_MODIFIABLE)
		1261
		1262	const_iv (FS_XFLAG_REALTIME)
		1263	const_iv (FS_XFLAG_PREALLOC)
		1264	const_iv (FS_XFLAG_IMMUTABLE)
		1265	const_iv (FS_XFLAG_APPEND)
		1266	const_iv (FS_XFLAG_SYNC)
		1267	const_iv (FS_XFLAG_NOATIME)
		1268	const_iv (FS_XFLAG_NODUMP)
		1269	const_iv (FS_XFLAG_RTINHERIT)
		1270	const_iv (FS_XFLAG_PROJINHERIT)
		1271	const_iv (FS_XFLAG_NOSYMLINKS)
		1272	const_iv (FS_XFLAG_EXTSIZE)
		1273	const_iv (FS_XFLAG_EXTSZINHERIT)
		1274	const_iv (FS_XFLAG_NODEFRAG)
		1275	const_iv (FS_XFLAG_FILESTREAM)
		1276	const_iv (FS_XFLAG_DAX)
		1277	const_iv (FS_XFLAG_HASATTR)
999		1278
1000	const_iv (FIEMAP_FLAG_SYNC)	1279	const_iv (FIEMAP_FLAG_SYNC)
1001	const_iv (FIEMAP_FLAG_XATTR)	1280	const_iv (FIEMAP_FLAG_XATTR)
1002	const_iv (FIEMAP_FLAGS_COMPAT)	1281	const_iv (FIEMAP_FLAGS_COMPAT)
1003	const_iv (FIEMAP_EXTENT_LAST)	1282	const_iv (FIEMAP_EXTENT_LAST)
…		…
1015	const_iv (SPLICE_F_MOVE)	1294	const_iv (SPLICE_F_MOVE)
1016	const_iv (SPLICE_F_NONBLOCK)	1295	const_iv (SPLICE_F_NONBLOCK)
1017	const_iv (SPLICE_F_MORE)	1296	const_iv (SPLICE_F_MORE)
1018	const_iv (SPLICE_F_GIFT)	1297	const_iv (SPLICE_F_GIFT)
1019		1298
		1299	const_iv (EFD_CLOEXEC)
		1300	const_iv (EFD_NONBLOCK)
		1301	const_iv (EFD_SEMAPHORE)
		1302
		1303	const_iv (MFD_CLOEXEC)
		1304	const_iv (MFD_ALLOW_SEALING)
		1305	const_iv (MFD_HUGETLB)
		1306
		1307	const_iv (CLOCK_REALTIME)
		1308	const_iv (CLOCK_MONOTONIC)
		1309	const_iv (CLOCK_BOOTTIME)
		1310	const_iv (CLOCK_REALTIME_ALARM)
		1311	const_iv (CLOCK_BOOTTIME_ALARM)
		1312
		1313	const_iv (TFD_NONBLOCK)
		1314	const_iv (TFD_CLOEXEC)
		1315
		1316	const_iv (TFD_TIMER_ABSTIME)
		1317	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1318
		1319	const_iv (STATX_TYPE)
		1320	const_iv (STATX_MODE)
		1321	const_iv (STATX_NLINK)
		1322	const_iv (STATX_UID)
		1323	const_iv (STATX_GID)
		1324	const_iv (STATX_ATIME)
		1325	const_iv (STATX_MTIME)
		1326	const_iv (STATX_CTIME)
		1327	const_iv (STATX_INO)
		1328	const_iv (STATX_SIZE)
		1329	const_iv (STATX_BLOCKS)
		1330	const_iv (STATX_BASIC_STATS)
		1331	const_iv (STATX_ALL)
		1332	const_iv (STATX_BTIME)
		1333	const_iv (STATX_ATTR_COMPRESSED)
		1334	const_iv (STATX_ATTR_IMMUTABLE)
		1335	const_iv (STATX_ATTR_APPEND)
		1336	const_iv (STATX_ATTR_NODUMP)
		1337	const_iv (STATX_ATTR_ENCRYPTED)
		1338	const_iv (STATX_ATTR_AUTOMOUNT)
		1339
		1340	const_iv (AT_FDCWD)
		1341	const_iv (AT_SYMLINK_NOFOLLOW)
		1342	const_iv (AT_EACCESS)
		1343	const_iv (AT_REMOVEDIR)
		1344	const_iv (AT_SYMLINK_FOLLOW)
		1345	const_iv (AT_NO_AUTOMOUNT)
		1346	const_iv (AT_EMPTY_PATH)
		1347	const_iv (AT_STATX_SYNC_TYPE)
		1348	const_iv (AT_STATX_AS_STAT)
		1349	const_iv (AT_STATX_FORCE_SYNC)
		1350	const_iv (AT_STATX_DONT_SYNC)
		1351	const_iv (AT_RECURSIVE)
		1352
		1353	const_iv (OPEN_TREE_CLONE)
		1354
		1355	const_iv (FSOPEN_CLOEXEC)
		1356
		1357	const_iv (FSPICK_CLOEXEC)
		1358	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1359	const_iv (FSPICK_NO_AUTOMOUNT)
		1360	const_iv (FSPICK_EMPTY_PATH)
		1361
		1362	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1363	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1364	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1365	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1366	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1367	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1368
1020	/* these are libeio constants, and are independent of gendef0 */	1369	/* these are libeio constants, and are independent of gendef0 */
1021	const_eio (SEEK_SET)	1370	const_eio (SEEK_SET)
1022	const_eio (SEEK_CUR)	1371	const_eio (SEEK_CUR)
1023	const_eio (SEEK_END)	1372	const_eio (SEEK_END)
1024		1373
1025	const_eio (MCL_FUTURE)	1374	const_eio (MCL_FUTURE)
1026	const_eio (MCL_CURRENT)	1375	const_eio (MCL_CURRENT)
		1376	const_eio (MCL_ONFAULT)
1027		1377
1028	const_eio (MS_ASYNC)	1378	const_eio (MS_ASYNC)
1029	const_eio (MS_INVALIDATE)	1379	const_eio (MS_INVALIDATE)
1030	const_eio (MS_SYNC)	1380	const_eio (MS_SYNC)
1031		1381
…		…
1037		1387
1038	const_eio (FALLOC_FL_KEEP_SIZE)	1388	const_eio (FALLOC_FL_KEEP_SIZE)
1039	const_eio (FALLOC_FL_PUNCH_HOLE)	1389	const_eio (FALLOC_FL_PUNCH_HOLE)
1040	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1390	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1041	const_eio (FALLOC_FL_ZERO_RANGE)	1391	const_eio (FALLOC_FL_ZERO_RANGE)
		1392	const_eio (FALLOC_FL_INSERT_RANGE)
		1393	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1394
		1395	const_eio (RENAME_NOREPLACE)
		1396	const_eio (RENAME_EXCHANGE)
		1397	const_eio (RENAME_WHITEOUT)
1042		1398
1043	const_eio (READDIR_DENTS)	1399	const_eio (READDIR_DENTS)
1044	const_eio (READDIR_DIRS_FIRST)	1400	const_eio (READDIR_DIRS_FIRST)
1045	const_eio (READDIR_STAT_ORDER)	1401	const_eio (READDIR_STAT_ORDER)
1046	const_eio (READDIR_FOUND_UNKNOWN)	1402	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1064	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1420	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));	1421	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1066		1422
1067	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1423	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1068		1424
		1425	/* allocate dummy pipe fd for aio_close */
		1426	{
		1427	int pipefd [2];
		1428
		1429	if (
		1430	#ifdef _WIN32
		1431	_pipe (pipefd, 1, _O_BINARY) < 0
		1432	#else
		1433	pipe (pipefd) < 0
		1434	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1435	#endif
		1436	|| close (pipefd [1]) < 0
		1437	)
		1438	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1439
		1440	close_fd = pipefd [0];
		1441	}
		1442
1069	reinit ();	1443	reinit ();
1070	}	1444	}
1071		1445
1072	void	1446	void
1073	reinit ()	1447	reinit ()
…		…
1195		1569
1196	void	1570	void
1197	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1571	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1198	PPCODE:	1572	PPCODE:
1199	{	1573	{
1200	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1201	int fd = s_fileno_croak (fh, 0);	1574	int fd = s_fileno_croak (fh, 0);
1202	dREQ;	1575	dREQ;
		1576	#if 0
		1577	/* partially duplicate logic in s_fileno */
		1578	SvGETMAGIC (fh);
1203		1579
1204	if (expect_false (close_fd < 0))	1580	if (SvROK (fh))
		1581	{
		1582	fh = SvRV (fh);
		1583	SvGETMAGIC (fh);
		1584	}
		1585
		1586	if (SvTYPE (fh) == SVt_PVGV)
1205	{	1587	{
1206	int pipefd [2];	1588	/* perl filehandle */
		1589	PerlIOUnix_refcnt_inc (fd);
		1590	do_close ((GV *)fh, 1);
1207		1591
1208	if (	1592	req->type = EIO_CLOSE;
1209	#ifdef _WIN32	1593	req->int1 = fd;
1210	_pipe (pipefd, 1, _O_BINARY) < 0	1594	/*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	}	1595	}
1221		1596	else
		1597	#endif
		1598	{
		1599	/* fd number */
1222	req->type = EIO_DUP2;	1600	req->type = EIO_DUP2;
1223	req->int1 = close_fd;	1601	req->int1 = close_fd;
1224	req->sv2 = newSVsv (fh);	1602	req->sv2 = newSVsv (fh);
1225	req->int2 = fd;	1603	req->int2 = fd;
		1604	}
1226		1605
1227	REQ_SEND;	1606	REQ_SEND;
1228	}	1607	}
1229		1608
1230	void	1609	void
…		…
1297	REQ_SEND;	1676	REQ_SEND;
1298	}	1677	}
1299	}	1678	}
1300		1679
1301	void	1680	void
		1681	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1682	ALIAS:
		1683	aio_ioctl = EIO_IOCTL
		1684	aio_fcntl = EIO_FCNTL
		1685	PPCODE:
		1686	{
		1687	int fd = s_fileno_croak (fh, 0);
		1688	char *svptr;
		1689
		1690	if (SvPOK (arg) || !SvNIOK (arg))
		1691	{
		1692	STRLEN svlen;
		1693	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1694	#ifdef IOCPARM_LEN
		1695	STRLEN need = IOCPARM_LEN (request);
		1696	#else
		1697	STRLEN need = 256;
		1698	#endif
		1699
		1700	if (svlen < need)
		1701	svptr = SvGROW (arg, need);
		1702	}
		1703	else
		1704	svptr = (char *)SvIV (arg);
		1705
		1706	{
		1707	dREQ;
		1708
		1709	req->type = ix;
		1710	req->sv1 = newSVsv (fh);
		1711	req->int1 = fd;
		1712	req->int2 = (long)request;
		1713	req->sv2 = SvREFCNT_inc (arg);
		1714	req->ptr2 = svptr;
		1715
		1716	REQ_SEND;
		1717	}
		1718	}
		1719
		1720	void
1302	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1721	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1303	ALIAS:	1722	ALIAS:
1304	aio_readlink = EIO_READLINK	1723	aio_readlink = EIO_READLINK
1305	aio_realpath = EIO_REALPATH	1724	aio_realpath = EIO_REALPATH
1306	PPCODE:	1725	PPCODE:
…		…
1361	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1780	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1362		1781
1363	REQ_SEND;	1782	REQ_SEND;
1364	}	1783	}
1365		1784
		1785	void
		1786	st_xtime ()
		1787	ALIAS:
		1788	st_atime = 0x01
		1789	st_mtime = 0x02
		1790	st_ctime = 0x04
		1791	st_btime = 0x08
		1792	st_xtime = 0x0f
		1793	PPCODE:
		1794	EXTEND (SP, 4);
		1795	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1796	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1797	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1798	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1799
		1800	void
		1801	st_xtimensec ()
		1802	ALIAS:
		1803	st_atimensec = 0x01
		1804	st_mtimensec = 0x02
		1805	st_ctimensec = 0x04
		1806	st_btimensec = 0x08
		1807	st_xtimensec = 0x0f
		1808	st_btimesec = 0x10
		1809	st_gen = 0x20
		1810	PPCODE:
		1811	EXTEND (SP, 4);
		1812	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1813	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1814	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1815	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1816	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1817	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1818
1366	UV	1819	UV
1367	major (UV dev)	1820	major (UV dev)
1368	ALIAS:	1821	ALIAS:
1369	minor = 1	1822	minor = 1
1370	CODE:	1823	CODE:
1371	RETVAL = ix ? major (dev) : minor (dev);	1824	RETVAL = ix ? minor (dev) : major (dev);
1372	OUTPUT:	1825	OUTPUT:
1373	RETVAL	1826	RETVAL
1374		1827
1375	UV	1828	UV
1376	makedev (UV maj, UV min)	1829	makedev (UV maj, UV min)
…		…
1486	eio_wd wd2 = 0;	1939	eio_wd wd2 = 0;
1487	dREQ;	1940	dREQ;
1488		1941
1489	req->type = ix;	1942	req->type = ix;
1490	req_set_path1 (req, oldpath);	1943	req_set_path1 (req, oldpath);
1491	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1944	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1945	req->int3 = (long)wd2;
		1946
		1947	REQ_SEND;
		1948	}
		1949
		1950	void
		1951	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1952	PPCODE:
		1953	{
		1954	eio_wd wd2 = 0;
		1955	dREQ;
		1956
		1957	req->type = EIO_RENAME;
		1958	req_set_path1 (req, oldpath);
		1959	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1960	req->int2 = flags;
1492	req->int3 = (long)wd2;	1961	req->int3 = (long)wd2;
1493		1962
1494	REQ_SEND;	1963	REQ_SEND;
1495	}	1964	}
1496		1965
…		…
1507		1976
1508	REQ_SEND;	1977	REQ_SEND;
1509	}	1978	}
1510		1979
1511	void	1980	void
1512	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1981	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1513	ALIAS:	1982	ALIAS:
1514	aio_mtouch = EIO_MTOUCH	1983	aio_mtouch = EIO_MTOUCH
1515	aio_msync = EIO_MSYNC	1984	aio_msync = EIO_MSYNC
1516	PPCODE:	1985	PPCODE:
1517	{	1986	{
1518	STRLEN svlen;	1987	STRLEN svlen;
1519	char *svptr = SvPVbyte (data, svlen);	1988	char *svptr = SvPVbyte (data, svlen);
1520	UV len = SvUV (length);	1989	UV len = SvUV (length);
		1990
		1991	if (flags < 0)
		1992	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1521		1993
1522	if (offset < 0)	1994	if (offset < 0)
1523	offset += svlen;	1995	offset += svlen;
1524		1996
1525	if (offset < 0 || offset > svlen)	1997	if (offset < 0 || offset > svlen)
…		…
1601	req->int2 = flags;	2073	req->int2 = flags;
1602	req->int3 = SvOK (count) ? SvIV (count) : -1;	2074	req->int3 = SvOK (count) ? SvIV (count) : -1;
1603	#endif	2075	#endif
1604		2076
1605	REQ_SEND;	2077	REQ_SEND;
		2078	}
		2079
		2080	void
		2081	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2082	PPCODE:
		2083	{
		2084	char *svptr = 0;
		2085
		2086	sv_clear_foreign (data);
		2087
		2088	if (length) /* known length, directly read into scalar */
		2089	{
		2090	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2091	svptr = sv_grow (data, length + 1);
		2092	else if (SvCUR (data) < length)
		2093	croak ("length outside of scalar, and cannot grow");
		2094	else
		2095	svptr = SvPVbyte_nolen (data);
		2096	}
		2097
		2098	{
		2099	dREQ;
		2100
		2101	req->type = EIO_SLURP;
		2102	req_set_path1 (req, pathname);
		2103	req->offs = offset;
		2104	req->size = length;
		2105	req->sv2 = SvREFCNT_inc (data);
		2106	req->ptr2 = svptr;
		2107
		2108	if (!SvREADONLY (data))
		2109	{
		2110	SvREADONLY_on (data);
		2111	req->flags |= FLAG_SV2_RO_OFF;
		2112	}
		2113
		2114	REQ_SEND;
		2115	}
1606	}	2116	}
1607		2117
1608	void	2118	void
1609	aio_busy (double delay, SV *callback = &PL_sv_undef)	2119	aio_busy (double delay, SV *callback = &PL_sv_undef)
1610	PPCODE:	2120	PPCODE:
…		…
1747	RETVAL	2257	RETVAL
1748		2258
1749	void	2259	void
1750	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2260	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1751	PPCODE:	2261	PPCODE:
1752	sv_unmagic (scalar, MMAP_MAGIC);	2262	sv_clear_foreign (scalar);
1753	{	2263	{
1754	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2264	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1755	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2265	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1756	if (addr == (void *)-1)	2266	if (addr == (void *)-1)
1757	XSRETURN_NO;	2267	XSRETURN_NO;
1758		2268
1759	sv_force_normal (scalar);	2269	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		2270
1767	if (!(prot & PROT_WRITE))	2271	if (!(prot & PROT_WRITE))
1768	SvREADONLY_on (scalar);	2272	SvREADONLY_on (scalar);
1769		2273
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;	2274	XSRETURN_YES;
1779	}	2275	}
1780		2276
1781	void	2277	void
1782	munmap (SV *scalar)	2278	munmap (SV *scalar)
1783	CODE:	2279	CODE:
1784	sv_unmagic (scalar, MMAP_MAGIC);	2280	sv_clear_foreign (scalar);
		2281
		2282	SV *
		2283	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2284	CODE:
		2285	{
		2286	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2287	void *new;
		2288
		2289	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2290	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2291
		2292	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2293
		2294	RETVAL = &PL_sv_no;
		2295
		2296	if (new != (void *)-1)
		2297	{
		2298	RETVAL = new == (void *)mg->mg_ptr
		2299	? newSVpvn ("0 but true", 10)
		2300	: &PL_sv_yes;
		2301
		2302	mg->mg_ptr = (char *)new;
		2303	mg->mg_obj = (SV *)new_length;
		2304
		2305	SvPVX (scalar) = mg->mg_ptr;
		2306	SvCUR_set (scalar, new_length);
		2307	}
		2308	}
		2309	OUTPUT:
		2310	RETVAL
1785		2311
1786	int	2312	int
1787	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2313	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1788	ALIAS:	2314	ALIAS:
1789	mprotect = 1	2315	mprotect = 1
1790	CODE:	2316	CODE:
1791	{	2317	{
1792	STRLEN svlen;	2318	STRLEN svlen;
…		…
1813	}	2339	}
1814	OUTPUT:	2340	OUTPUT:
1815	RETVAL	2341	RETVAL
1816		2342
1817	int	2343	int
1818	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2344	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1819	CODE:	2345	CODE:
1820	{	2346	{
1821	STRLEN svlen;	2347	STRLEN svlen;
1822	void *addr = SvPVbyte (scalar, svlen);	2348	void *addr = SvPVbyte (scalar, svlen);
1823	size_t len = SvUV (length);	2349	size_t len = SvUV (length);
…		…
1838	#else	2364	#else
1839	RETVAL = EIO_ENOSYS ();	2365	RETVAL = EIO_ENOSYS ();
1840	#endif	2366	#endif
1841	}	2367	}
1842	OUTPUT:	2368	OUTPUT:
		2369	RETVAL
		2370
		2371	int
		2372	mlockall (int flags)
		2373	PROTOTYPE: $;
		2374	CODE:
		2375	RETVAL = eio_mlockall_sync (flags);
		2376	OUTPUT:
1843	RETVAL	2377	RETVAL
1844		2378
1845	int	2379	int
1846	munlockall ()	2380	munlockall ()
1847	CODE:	2381	CODE:
…		…
1852	#endif	2386	#endif
1853	OUTPUT:	2387	OUTPUT:
1854	RETVAL	2388	RETVAL
1855		2389
1856	int	2390	int
		2391	statx (SV8 *pathname, int flags, UV mask)
		2392	CODE:
		2393	{
		2394	/* undocumented, and might go away, and anyway, should use eio_statx */
		2395	SV *wdsv = 0;
		2396	SV *pathsv = 0;
		2397	eio_wd wd = EIO_CWD;
		2398	void *ptr;
		2399	int res;
		2400
		2401	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2402	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2403
		2404	SvREFCNT_dec (pathsv);
		2405	SvREFCNT_dec (wdsv);
		2406	}
		2407	OUTPUT:
		2408	RETVAL
		2409
		2410	U32
		2411	stx_mode ()
		2412	PROTOTYPE:
		2413	CODE:
		2414	#if HAVE_STATX
		2415	RETVAL = stx.stx_mode;
		2416	#else
		2417	XSRETURN_UNDEF;
		2418	#endif
		2419	OUTPUT:
		2420	RETVAL
		2421
		2422	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2423	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2424	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2425	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2426	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2427	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2428	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2429	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2430	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2431	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2432	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2433	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2434	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2435	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2436	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2437	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2438	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2439	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2440
		2441	U32
		2442	stx_mask ()
		2443	PROTOTYPE:
		2444	ALIAS:
		2445	stx_mask = STATX_OFFSET_mask
		2446	stx_blksize = STATX_OFFSET_blksize
		2447	stx_nlink = STATX_OFFSET_nlink
		2448	stx_uid = STATX_OFFSET_uid
		2449	stx_gid = STATX_OFFSET_gid
		2450	stx_rdev_major = STATX_OFFSET_rdev_major
		2451	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2452	stx_dev_major = STATX_OFFSET_dev_major
		2453	stx_dev_minor = STATX_OFFSET_dev_minor
		2454	CODE:
		2455	#if HAVE_STATX
		2456	RETVAL = *(__u32 *)((char *)&stx + ix);
		2457	#else
		2458	XSRETURN_UNDEF;
		2459	#endif
		2460	OUTPUT:
		2461	RETVAL
		2462
		2463	VAL64
		2464	stx_attributes ()
		2465	PROTOTYPE:
		2466	ALIAS:
		2467	stx_attributes = STATX_OFFSET_attributes
		2468	stx_ino = STATX_OFFSET_ino
		2469	stx_size = STATX_OFFSET_size
		2470	stx_blocks = STATX_OFFSET_blocks
		2471	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2472	CODE:
		2473	#if HAVE_STATX
		2474	RETVAL = *(__u64 *)((char *)&stx + ix);
		2475	#else
		2476	XSRETURN_UNDEF;
		2477	#endif
		2478	OUTPUT:
		2479	RETVAL
		2480
		2481	NV
		2482	stx_atime ()
		2483	PROTOTYPE:
		2484	ALIAS:
		2485	stx_atime = STATX_OFFSET_atime
		2486	stx_btime = STATX_OFFSET_btime
		2487	stx_ctime = STATX_OFFSET_ctime
		2488	stx_mtime = STATX_OFFSET_mtime
		2489	CODE:
		2490	#if HAVE_STATX
		2491	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2492	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2493	#else
		2494	XSRETURN_UNDEF;
		2495	#endif
		2496	OUTPUT:
		2497	RETVAL
		2498
		2499	VAL64
		2500	stx_atimesec ()
		2501	PROTOTYPE:
		2502	ALIAS:
		2503	stx_atimesec = STATX_OFFSET_atime
		2504	stx_btimesec = STATX_OFFSET_btime
		2505	stx_ctimesec = STATX_OFFSET_ctime
		2506	stx_mtimesec = STATX_OFFSET_mtime
		2507	CODE:
		2508	#if HAVE_STATX
		2509	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2510	RETVAL = ts->tv_sec;
		2511	#else
		2512	XSRETURN_UNDEF;
		2513	#endif
		2514	OUTPUT:
		2515	RETVAL
		2516
		2517	U32
		2518	stx_atimensec ()
		2519	PROTOTYPE:
		2520	ALIAS:
		2521	stx_atimensec = STATX_OFFSET_atime
		2522	stx_btimensec = STATX_OFFSET_btime
		2523	stx_ctimensec = STATX_OFFSET_ctime
		2524	stx_mtimensec = STATX_OFFSET_mtime
		2525	CODE:
		2526	#if HAVE_STATX
		2527	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2528	RETVAL = ts->tv_nsec;
		2529	#else
		2530	RETVAL = 0;
		2531	#endif
		2532	OUTPUT:
		2533	RETVAL
		2534
		2535	void
		2536	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2537	PPCODE:
		2538	{
		2539	SV *retval;
		2540	#if HAVE_ACCEPT4
		2541	socklen_t salen_ = salen ? salen + 1 : 0;
		2542
		2543	if (salen)
		2544	{
		2545	sv_upgrade (sockaddr, SVt_PV);
		2546	sv_grow (sockaddr, salen_);
		2547	}
		2548
		2549	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2550
		2551	retval = newmortalFH (res, O_RDWR);
		2552
		2553	if (res >= 0 && salen > 0)
		2554	{
		2555	if (salen_ > salen + 1)
		2556	salen_ = salen + 1;
		2557
		2558	SvPOK_only (sockaddr);
		2559	SvCUR_set (sockaddr, salen_);
		2560	}
		2561	#else
		2562	errno = ENOSYS;
		2563	retval = &PL_sv_undef;
		2564	#endif
		2565	XPUSHs (retval);
		2566	}
		2567
		2568	ssize_t
1857	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2569	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1858	CODE:	2570	CODE:
1859	{	2571	{
1860	#if HAVE_LINUX_SPLICE	2572	#if HAVE_LINUX_SPLICE
1861	loff_t off_in_, off_out_;	2573	loff_t off_in_, off_out_;
…		…
1869	#endif	2581	#endif
1870	}	2582	}
1871	OUTPUT:	2583	OUTPUT:
1872	RETVAL	2584	RETVAL
1873		2585
1874	int	2586	ssize_t
1875	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)	2587	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1876	CODE:	2588	CODE:
1877	#if HAVE_LINUX_SPLICE	2589	#if HAVE_LINUX_SPLICE
1878	RETVAL = tee (rfh, wfh, length, flags);	2590	RETVAL = tee (rfh, wfh, length, flags);
1879	#else	2591	#else
…		…
1919	{	2631	{
1920	EXTEND (SP, 2);	2632	EXTEND (SP, 2);
1921	PUSHs (newmortalFH (fd[0], O_RDONLY));	2633	PUSHs (newmortalFH (fd[0], O_RDONLY));
1922	PUSHs (newmortalFH (fd[1], O_WRONLY));	2634	PUSHs (newmortalFH (fd[1], O_WRONLY));
1923	}	2635	}
		2636	}
		2637
		2638	void
		2639	pidfd_open (int pid, unsigned int flags = 0)
		2640	PPCODE:
		2641	{
		2642	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2643	int fd = syscall (SYS_pidfd_open, pid, flags);
		2644	XPUSHs (newmortalFH (fd, O_RDWR));
		2645	}
		2646
		2647	int
		2648	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2649	PPCODE:
		2650	{
		2651	int res;
		2652	siginfo_t si = { 0 };
		2653
		2654	if (SvOK (siginfo))
		2655	{
		2656	HV *hv;
		2657	SV **svp;
		2658
		2659	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2660	croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
		2661
		2662	hv = (HV *)SvRV (siginfo);
		2663
		2664	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2665	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2666	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2667	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2668	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2669	}
		2670
		2671	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2672	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2673
		2674	XPUSHs (sv_2mortal (newSViv (res)));
		2675	}
		2676
		2677	void
		2678	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2679	PPCODE:
		2680	{
		2681	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2682	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2683	XPUSHs (newmortalFH (fd, O_RDWR));
		2684	}
		2685
		2686	void
		2687	eventfd (unsigned int initval = 0, int flags = 0)
		2688	PPCODE:
		2689	{
		2690	int fd;
		2691	#if HAVE_EVENTFD
		2692	fd = eventfd (initval, flags);
		2693	#else
		2694	fd = (errno = ENOSYS, -1);
		2695	#endif
		2696
		2697	XPUSHs (newmortalFH (fd, O_RDWR));
		2698	}
		2699
		2700	void
		2701	timerfd_create (int clockid, int flags = 0)
		2702	PPCODE:
		2703	{
		2704	int fd;
		2705	#if HAVE_TIMERFD
		2706	fd = timerfd_create (clockid, flags);
		2707	#else
		2708	fd = (errno = ENOSYS, -1);
		2709	#endif
		2710
		2711	XPUSHs (newmortalFH (fd, O_RDWR));
		2712	}
		2713
		2714	void
		2715	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2716	PPCODE:
		2717	{
		2718	int fd = s_fileno_croak (fh, 0);
		2719	#if HAVE_TIMERFD
		2720	int res;
		2721	struct itimerspec its, ots;
		2722
		2723	ts_set (&its.it_interval, interval);
		2724	ts_set (&its.it_value , value);
		2725	res = timerfd_settime (fd, flags, &its, &ots);
		2726
		2727	if (!res)
		2728	{
		2729	EXTEND (SP, 2);
		2730	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2731	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2732	}
		2733	#else
		2734	errno = ENOSYS;
		2735	#endif
		2736	}
		2737
		2738	void
		2739	timerfd_gettime (SV *fh)
		2740	PPCODE:
		2741	{
		2742	int fd = s_fileno_croak (fh, 0);
		2743	#if HAVE_TIMERFD
		2744	int res;
		2745	struct itimerspec ots;
		2746	res = timerfd_gettime (fd, &ots);
		2747
		2748	if (!res)
		2749	{
		2750	EXTEND (SP, 2);
		2751	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2752	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2753	}
		2754	#else
		2755	errno = ENOSYS;
		2756	#endif
		2757	}
		2758
		2759	void
		2760	memfd_create (SV8 *pathname, int flags = 0)
		2761	PPCODE:
		2762	{
		2763	int fd;
		2764	#if HAVE_MEMFD_CREATE
		2765	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2766	#else
		2767	fd = (errno = ENOSYS, -1);
		2768	#endif
		2769
		2770	XPUSHs (newmortalFH (fd, O_RDWR));
		2771	}
		2772
		2773	UV
		2774	get_fdlimit ()
		2775	CODE:
		2776	#if HAVE_RLIMITS
		2777	struct rlimit rl;
		2778	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2779	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2780	#endif
		2781	XSRETURN_UNDEF;
		2782	OUTPUT:
		2783	RETVAL
		2784
		2785	void
		2786	min_fdlimit (UV limit = 0x7fffffffU)
		2787	CODE:
		2788	{
		2789	#if HAVE_RLIMITS
		2790	struct rlimit rl;
		2791	rlim_t orig_rlim_max;
		2792	UV bit;
		2793
		2794	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2795	goto fail;
		2796
		2797	if (rl.rlim_cur == RLIM_INFINITY)
		2798	XSRETURN_YES;
		2799
		2800	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2801
		2802	if (rl.rlim_cur < limit)
		2803	{
		2804	rl.rlim_cur = limit;
		2805
		2806	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2807	rl.rlim_max = rl.rlim_cur;
		2808	}
		2809
		2810	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2811	XSRETURN_YES;
		2812
		2813	if (errno == EPERM)
		2814	{
		2815	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2816	/* our limit overflows a system-wide limit */
		2817	/* try an adaptive algorithm, but do not lower the hardlimit */
		2818	rl.rlim_max = 0;
		2819	for (bit = 0x40000000U; bit; bit >>= 1)
		2820	{
		2821	rl.rlim_max |= bit;
		2822	rl.rlim_cur = rl.rlim_max;
		2823
		2824	/* never decrease the hard limit */
		2825	if (rl.rlim_max < orig_rlim_max)
		2826	break;
		2827
		2828	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2829	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2830	}
		2831
		2832	/* now, raise the soft limit to the max permitted */
		2833	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2834	{
		2835	rl.rlim_cur = rl.rlim_max;
		2836	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2837	errno = EPERM;
		2838	}
		2839	}
		2840	#endif
		2841	fail:
		2842	XSRETURN_UNDEF;
1924	}	2843	}
1925		2844
1926	void _on_next_submit (SV *cb)	2845	void _on_next_submit (SV *cb)
1927	CODE:	2846	CODE:
1928	SvREFCNT_dec (on_next_submit);	2847	SvREFCNT_dec (on_next_submit);

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