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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC vs.
Revision 1.285 by root, Tue Dec 29 15:16:28 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)
…		…
993	const_iv (MAP_NONBLOCK)	1197	const_iv (MAP_NONBLOCK)
994	const_iv (MAP_GROWSDOWN)	1198	const_iv (MAP_GROWSDOWN)
995	const_iv (MAP_32BIT)	1199	const_iv (MAP_32BIT)
996	const_iv (MAP_HUGETLB)	1200	const_iv (MAP_HUGETLB)
997	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)
998		1278
999	const_iv (FIEMAP_FLAG_SYNC)	1279	const_iv (FIEMAP_FLAG_SYNC)
1000	const_iv (FIEMAP_FLAG_XATTR)	1280	const_iv (FIEMAP_FLAG_XATTR)
1001	const_iv (FIEMAP_FLAGS_COMPAT)	1281	const_iv (FIEMAP_FLAGS_COMPAT)
1002	const_iv (FIEMAP_EXTENT_LAST)	1282	const_iv (FIEMAP_EXTENT_LAST)
…		…
1014	const_iv (SPLICE_F_MOVE)	1294	const_iv (SPLICE_F_MOVE)
1015	const_iv (SPLICE_F_NONBLOCK)	1295	const_iv (SPLICE_F_NONBLOCK)
1016	const_iv (SPLICE_F_MORE)	1296	const_iv (SPLICE_F_MORE)
1017	const_iv (SPLICE_F_GIFT)	1297	const_iv (SPLICE_F_GIFT)
1018		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 (MOVE_MOUNT_F_SYMLINKS)
		1356	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1357	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1358	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1359	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1360	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1361
1019	/* these are libeio constants, and are independent of gendef0 */	1362	/* these are libeio constants, and are independent of gendef0 */
1020	const_eio (SEEK_SET)	1363	const_eio (SEEK_SET)
1021	const_eio (SEEK_CUR)	1364	const_eio (SEEK_CUR)
1022	const_eio (SEEK_END)	1365	const_eio (SEEK_END)
1023		1366
1024	const_eio (MCL_FUTURE)	1367	const_eio (MCL_FUTURE)
1025	const_eio (MCL_CURRENT)	1368	const_eio (MCL_CURRENT)
		1369	const_eio (MCL_ONFAULT)
1026		1370
1027	const_eio (MS_ASYNC)	1371	const_eio (MS_ASYNC)
1028	const_eio (MS_INVALIDATE)	1372	const_eio (MS_INVALIDATE)
1029	const_eio (MS_SYNC)	1373	const_eio (MS_SYNC)
1030		1374
…		…
1036		1380
1037	const_eio (FALLOC_FL_KEEP_SIZE)	1381	const_eio (FALLOC_FL_KEEP_SIZE)
1038	const_eio (FALLOC_FL_PUNCH_HOLE)	1382	const_eio (FALLOC_FL_PUNCH_HOLE)
1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1383	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040	const_eio (FALLOC_FL_ZERO_RANGE)	1384	const_eio (FALLOC_FL_ZERO_RANGE)
		1385	const_eio (FALLOC_FL_INSERT_RANGE)
		1386	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1387
		1388	const_eio (RENAME_NOREPLACE)
		1389	const_eio (RENAME_EXCHANGE)
		1390	const_eio (RENAME_WHITEOUT)
1041		1391
1042	const_eio (READDIR_DENTS)	1392	const_eio (READDIR_DENTS)
1043	const_eio (READDIR_DIRS_FIRST)	1393	const_eio (READDIR_DIRS_FIRST)
1044	const_eio (READDIR_STAT_ORDER)	1394	const_eio (READDIR_STAT_ORDER)
1045	const_eio (READDIR_FOUND_UNKNOWN)	1395	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1063	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1413	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1064	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1414	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1065		1415
1066	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1416	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1067		1417
		1418	/* allocate dummy pipe fd for aio_close */
		1419	{
		1420	int pipefd [2];
		1421
		1422	if (
		1423	#ifdef _WIN32
		1424	_pipe (pipefd, 1, _O_BINARY) < 0
		1425	#else
		1426	pipe (pipefd) < 0
		1427	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1428	#endif
		1429	|| close (pipefd [1]) < 0
		1430	)
		1431	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1432
		1433	close_fd = pipefd [0];
		1434	}
		1435
1068	reinit ();	1436	reinit ();
1069	}	1437	}
1070		1438
1071	void	1439	void
1072	reinit ()	1440	reinit ()
…		…
1194		1562
1195	void	1563	void
1196	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1564	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1197	PPCODE:	1565	PPCODE:
1198	{	1566	{
1199	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1200	int fd = s_fileno_croak (fh, 0);	1567	int fd = s_fileno_croak (fh, 0);
1201	dREQ;	1568	dREQ;
		1569	#if 0
		1570	/* partially duplicate logic in s_fileno */
		1571	SvGETMAGIC (fh);
1202		1572
1203	if (expect_false (close_fd < 0))	1573	if (SvROK (fh))
		1574	{
		1575	fh = SvRV (fh);
		1576	SvGETMAGIC (fh);
		1577	}
		1578
		1579	if (SvTYPE (fh) == SVt_PVGV)
1204	{	1580	{
1205	int pipefd [2];	1581	/* perl filehandle */
		1582	PerlIOUnix_refcnt_inc (fd);
		1583	do_close ((GV *)fh, 1);
1206		1584
1207	if (	1585	req->type = EIO_CLOSE;
1208	#ifdef _WIN32	1586	req->int1 = fd;
1209	_pipe (pipefd, 1, _O_BINARY) < 0	1587	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1210	#else
1211	pipe (pipefd) < 0
1212	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1213	#endif
1214	|| close (pipefd [1]) < 0
1215	)
1216	abort (); /*D*/
1217
1218	close_fd = pipefd [0];
1219	}	1588	}
1220		1589	else
		1590	#endif
		1591	{
		1592	/* fd number */
1221	req->type = EIO_DUP2;	1593	req->type = EIO_DUP2;
1222	req->int1 = close_fd;	1594	req->int1 = close_fd;
1223	req->sv2 = newSVsv (fh);	1595	req->sv2 = newSVsv (fh);
1224	req->int2 = fd;	1596	req->int2 = fd;
		1597	}
1225		1598
1226	REQ_SEND;	1599	REQ_SEND;
1227	}	1600	}
1228		1601
1229	void	1602	void
…		…
1296	REQ_SEND;	1669	REQ_SEND;
1297	}	1670	}
1298	}	1671	}
1299		1672
1300	void	1673	void
		1674	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1675	ALIAS:
		1676	aio_ioctl = EIO_IOCTL
		1677	aio_fcntl = EIO_FCNTL
		1678	PPCODE:
		1679	{
		1680	int fd = s_fileno_croak (fh, 0);
		1681	char *svptr;
		1682
		1683	if (SvPOK (arg) || !SvNIOK (arg))
		1684	{
		1685	STRLEN svlen;
		1686	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1687	#ifdef IOCPARM_LEN
		1688	STRLEN need = IOCPARM_LEN (request);
		1689	#else
		1690	STRLEN need = 256;
		1691	#endif
		1692
		1693	if (svlen < need)
		1694	svptr = SvGROW (arg, need);
		1695	}
		1696	else
		1697	svptr = (char *)SvIV (arg);
		1698
		1699	{
		1700	dREQ;
		1701
		1702	req->type = ix;
		1703	req->sv1 = newSVsv (fh);
		1704	req->int1 = fd;
		1705	req->int2 = (long)request;
		1706	req->sv2 = SvREFCNT_inc (arg);
		1707	req->ptr2 = svptr;
		1708
		1709	REQ_SEND;
		1710	}
		1711	}
		1712
		1713	void
1301	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1714	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1302	ALIAS:	1715	ALIAS:
1303	aio_readlink = EIO_READLINK	1716	aio_readlink = EIO_READLINK
1304	aio_realpath = EIO_REALPATH	1717	aio_realpath = EIO_REALPATH
1305	PPCODE:	1718	PPCODE:
…		…
1360	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1773	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1361		1774
1362	REQ_SEND;	1775	REQ_SEND;
1363	}	1776	}
1364		1777
		1778	void
		1779	st_xtime ()
		1780	ALIAS:
		1781	st_atime = 0x01
		1782	st_mtime = 0x02
		1783	st_ctime = 0x04
		1784	st_btime = 0x08
		1785	st_xtime = 0x0f
		1786	PPCODE:
		1787	EXTEND (SP, 4);
		1788	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1789	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1790	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1791	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1792
		1793	void
		1794	st_xtimensec ()
		1795	ALIAS:
		1796	st_atimensec = 0x01
		1797	st_mtimensec = 0x02
		1798	st_ctimensec = 0x04
		1799	st_btimensec = 0x08
		1800	st_xtimensec = 0x0f
		1801	st_btimesec = 0x10
		1802	st_gen = 0x20
		1803	PPCODE:
		1804	EXTEND (SP, 4);
		1805	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1806	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1807	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1808	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1809	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1810	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1811
1365	UV	1812	UV
1366	major (UV dev)	1813	major (UV dev)
1367	ALIAS:	1814	ALIAS:
1368	minor = 1	1815	minor = 1
1369	CODE:	1816	CODE:
1370	RETVAL = ix ? major (dev) : minor (dev);	1817	RETVAL = ix ? minor (dev) : major (dev);
1371	OUTPUT:	1818	OUTPUT:
1372	RETVAL	1819	RETVAL
1373		1820
1374	UV	1821	UV
1375	makedev (UV maj, UV min)	1822	makedev (UV maj, UV min)
…		…
1485	eio_wd wd2 = 0;	1932	eio_wd wd2 = 0;
1486	dREQ;	1933	dREQ;
1487		1934
1488	req->type = ix;	1935	req->type = ix;
1489	req_set_path1 (req, oldpath);	1936	req_set_path1 (req, oldpath);
1490	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1937	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1938	req->int3 = (long)wd2;
		1939
		1940	REQ_SEND;
		1941	}
		1942
		1943	void
		1944	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1945	PPCODE:
		1946	{
		1947	eio_wd wd2 = 0;
		1948	dREQ;
		1949
		1950	req->type = EIO_RENAME;
		1951	req_set_path1 (req, oldpath);
		1952	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1953	req->int2 = flags;
1491	req->int3 = (long)wd2;	1954	req->int3 = (long)wd2;
1492		1955
1493	REQ_SEND;	1956	REQ_SEND;
1494	}	1957	}
1495		1958
…		…
1506		1969
1507	REQ_SEND;	1970	REQ_SEND;
1508	}	1971	}
1509		1972
1510	void	1973	void
1511	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1974	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1512	ALIAS:	1975	ALIAS:
1513	aio_mtouch = EIO_MTOUCH	1976	aio_mtouch = EIO_MTOUCH
1514	aio_msync = EIO_MSYNC	1977	aio_msync = EIO_MSYNC
1515	PPCODE:	1978	PPCODE:
1516	{	1979	{
1517	STRLEN svlen;	1980	STRLEN svlen;
1518	char *svptr = SvPVbyte (data, svlen);	1981	char *svptr = SvPVbyte (data, svlen);
1519	UV len = SvUV (length);	1982	UV len = SvUV (length);
		1983
		1984	if (flags < 0)
		1985	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1520		1986
1521	if (offset < 0)	1987	if (offset < 0)
1522	offset += svlen;	1988	offset += svlen;
1523		1989
1524	if (offset < 0 || offset > svlen)	1990	if (offset < 0 || offset > svlen)
…		…
1600	req->int2 = flags;	2066	req->int2 = flags;
1601	req->int3 = SvOK (count) ? SvIV (count) : -1;	2067	req->int3 = SvOK (count) ? SvIV (count) : -1;
1602	#endif	2068	#endif
1603		2069
1604	REQ_SEND;	2070	REQ_SEND;
		2071	}
		2072
		2073	void
		2074	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2075	PPCODE:
		2076	{
		2077	char *svptr = 0;
		2078
		2079	sv_clear_foreign (data);
		2080
		2081	if (length) /* known length, directly read into scalar */
		2082	{
		2083	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2084	svptr = sv_grow (data, length + 1);
		2085	else if (SvCUR (data) < length)
		2086	croak ("length outside of scalar, and cannot grow");
		2087	else
		2088	svptr = SvPVbyte_nolen (data);
		2089	}
		2090
		2091	{
		2092	dREQ;
		2093
		2094	req->type = EIO_SLURP;
		2095	req_set_path1 (req, pathname);
		2096	req->offs = offset;
		2097	req->size = length;
		2098	req->sv2 = SvREFCNT_inc (data);
		2099	req->ptr2 = svptr;
		2100
		2101	if (!SvREADONLY (data))
		2102	{
		2103	SvREADONLY_on (data);
		2104	req->flags |= FLAG_SV2_RO_OFF;
		2105	}
		2106
		2107	REQ_SEND;
		2108	}
1605	}	2109	}
1606		2110
1607	void	2111	void
1608	aio_busy (double delay, SV *callback = &PL_sv_undef)	2112	aio_busy (double delay, SV *callback = &PL_sv_undef)
1609	PPCODE:	2113	PPCODE:
…		…
1746	RETVAL	2250	RETVAL
1747		2251
1748	void	2252	void
1749	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2253	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1750	PPCODE:	2254	PPCODE:
1751	sv_unmagic (scalar, MMAP_MAGIC);	2255	sv_clear_foreign (scalar);
1752	{	2256	{
1753	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2257	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1754	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2258	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1755	if (addr == (void *)-1)	2259	if (addr == (void *)-1)
1756	XSRETURN_NO;	2260	XSRETURN_NO;
1757		2261
1758	sv_force_normal (scalar);	2262	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1759
1760	/* we store the length in mg_obj, as namlen is I32 :/ */
1761	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1762	->mg_obj = (SV *)length;
1763
1764	SvUPGRADE (scalar, SVt_PV); /* nop... */
1765		2263
1766	if (!(prot & PROT_WRITE))	2264	if (!(prot & PROT_WRITE))
1767	SvREADONLY_on (scalar);	2265	SvREADONLY_on (scalar);
1768		2266
1769	if (SvLEN (scalar))
1770	Safefree (SvPVX (scalar));
1771
1772	SvPVX (scalar) = (char *)addr;
1773	SvCUR_set (scalar, length);
1774	SvLEN_set (scalar, 0);
1775	SvPOK_only (scalar);
1776
1777	XSRETURN_YES;	2267	XSRETURN_YES;
1778	}	2268	}
1779		2269
1780	void	2270	void
1781	munmap (SV *scalar)	2271	munmap (SV *scalar)
1782	CODE:	2272	CODE:
1783	sv_unmagic (scalar, MMAP_MAGIC);	2273	sv_clear_foreign (scalar);
		2274
		2275	SV *
		2276	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2277	CODE:
		2278	{
		2279	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2280	void *new;
		2281
		2282	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2283	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2284
		2285	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2286
		2287	RETVAL = &PL_sv_no;
		2288
		2289	if (new != (void *)-1)
		2290	{
		2291	RETVAL = new == (void *)mg->mg_ptr
		2292	? newSVpvn ("0 but true", 10)
		2293	: &PL_sv_yes;
		2294
		2295	mg->mg_ptr = (char *)new;
		2296	mg->mg_obj = (SV *)new_length;
		2297
		2298	SvPVX (scalar) = mg->mg_ptr;
		2299	SvCUR_set (scalar, new_length);
		2300	}
		2301	}
		2302	OUTPUT:
		2303	RETVAL
1784		2304
1785	int	2305	int
1786	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2306	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1787	ALIAS:	2307	ALIAS:
1788	mprotect = 1	2308	mprotect = 1
1789	CODE:	2309	CODE:
1790	{	2310	{
1791	STRLEN svlen;	2311	STRLEN svlen;
…		…
1812	}	2332	}
1813	OUTPUT:	2333	OUTPUT:
1814	RETVAL	2334	RETVAL
1815		2335
1816	int	2336	int
1817	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2337	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1818	CODE:	2338	CODE:
1819	{	2339	{
1820	STRLEN svlen;	2340	STRLEN svlen;
1821	void *addr = SvPVbyte (scalar, svlen);	2341	void *addr = SvPVbyte (scalar, svlen);
1822	size_t len = SvUV (length);	2342	size_t len = SvUV (length);
…		…
1837	#else	2357	#else
1838	RETVAL = EIO_ENOSYS ();	2358	RETVAL = EIO_ENOSYS ();
1839	#endif	2359	#endif
1840	}	2360	}
1841	OUTPUT:	2361	OUTPUT:
		2362	RETVAL
		2363
		2364	int
		2365	mlockall (int flags)
		2366	PROTOTYPE: $;
		2367	CODE:
		2368	RETVAL = eio_mlockall_sync (flags);
		2369	OUTPUT:
1842	RETVAL	2370	RETVAL
1843		2371
1844	int	2372	int
1845	munlockall ()	2373	munlockall ()
1846	CODE:	2374	CODE:
…		…
1851	#endif	2379	#endif
1852	OUTPUT:	2380	OUTPUT:
1853	RETVAL	2381	RETVAL
1854		2382
1855	int	2383	int
		2384	statx (SV8 *pathname, int flags, UV mask)
		2385	CODE:
		2386	{
		2387	/* undocumented, and might go away, and anyway, should use eio_statx */
		2388	SV *wdsv = 0;
		2389	SV *pathsv = 0;
		2390	eio_wd wd = EIO_CWD;
		2391	void *ptr;
		2392	int res;
		2393
		2394	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2395	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2396
		2397	SvREFCNT_dec (pathsv);
		2398	SvREFCNT_dec (wdsv);
		2399	}
		2400	OUTPUT:
		2401	RETVAL
		2402
		2403	U32
		2404	stx_mode ()
		2405	PROTOTYPE:
		2406	CODE:
		2407	#if HAVE_STATX
		2408	RETVAL = stx.stx_mode;
		2409	#else
		2410	XSRETURN_UNDEF;
		2411	#endif
		2412	OUTPUT:
		2413	RETVAL
		2414
		2415	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2416	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2417	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2418	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2419	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2420	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2421	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2422	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2423	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2424	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2425	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2426	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2427	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2428	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2429	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2430	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2431	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2432	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2433
		2434	U32
		2435	stx_mask ()
		2436	PROTOTYPE:
		2437	ALIAS:
		2438	stx_mask = STATX_OFFSET_mask
		2439	stx_blksize = STATX_OFFSET_blksize
		2440	stx_nlink = STATX_OFFSET_nlink
		2441	stx_uid = STATX_OFFSET_uid
		2442	stx_gid = STATX_OFFSET_gid
		2443	stx_rdev_major = STATX_OFFSET_rdev_major
		2444	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2445	stx_dev_major = STATX_OFFSET_dev_major
		2446	stx_dev_minor = STATX_OFFSET_dev_minor
		2447	CODE:
		2448	#if HAVE_STATX
		2449	RETVAL = *(__u32 *)((char *)&stx + ix);
		2450	#else
		2451	XSRETURN_UNDEF;
		2452	#endif
		2453	OUTPUT:
		2454	RETVAL
		2455
		2456	VAL64
		2457	stx_attributes ()
		2458	PROTOTYPE:
		2459	ALIAS:
		2460	stx_attributes = STATX_OFFSET_attributes
		2461	stx_ino = STATX_OFFSET_ino
		2462	stx_size = STATX_OFFSET_size
		2463	stx_blocks = STATX_OFFSET_blocks
		2464	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2465	CODE:
		2466	#if HAVE_STATX
		2467	RETVAL = *(__u64 *)((char *)&stx + ix);
		2468	#else
		2469	XSRETURN_UNDEF;
		2470	#endif
		2471	OUTPUT:
		2472	RETVAL
		2473
		2474	NV
		2475	stx_atime ()
		2476	PROTOTYPE:
		2477	ALIAS:
		2478	stx_atime = STATX_OFFSET_atime
		2479	stx_btime = STATX_OFFSET_btime
		2480	stx_ctime = STATX_OFFSET_ctime
		2481	stx_mtime = STATX_OFFSET_mtime
		2482	CODE:
		2483	#if HAVE_STATX
		2484	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2485	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2486	#else
		2487	XSRETURN_UNDEF;
		2488	#endif
		2489	OUTPUT:
		2490	RETVAL
		2491
		2492	VAL64
		2493	stx_atimesec ()
		2494	PROTOTYPE:
		2495	ALIAS:
		2496	stx_atimesec = STATX_OFFSET_atime
		2497	stx_btimesec = STATX_OFFSET_btime
		2498	stx_ctimesec = STATX_OFFSET_ctime
		2499	stx_mtimesec = STATX_OFFSET_mtime
		2500	CODE:
		2501	#if HAVE_STATX
		2502	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2503	RETVAL = ts->tv_sec;
		2504	#else
		2505	XSRETURN_UNDEF;
		2506	#endif
		2507	OUTPUT:
		2508	RETVAL
		2509
		2510	U32
		2511	stx_atimensec ()
		2512	PROTOTYPE:
		2513	ALIAS:
		2514	stx_atimensec = STATX_OFFSET_atime
		2515	stx_btimensec = STATX_OFFSET_btime
		2516	stx_ctimensec = STATX_OFFSET_ctime
		2517	stx_mtimensec = STATX_OFFSET_mtime
		2518	CODE:
		2519	#if HAVE_STATX
		2520	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2521	RETVAL = ts->tv_nsec;
		2522	#else
		2523	RETVAL = 0;
		2524	#endif
		2525	OUTPUT:
		2526	RETVAL
		2527
		2528	void
		2529	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2530	PPCODE:
		2531	{
		2532	SV *retval;
		2533	#if HAVE_ACCEPT4
		2534	socklen_t salen_ = salen ? salen + 1 : 0;
		2535
		2536	if (salen)
		2537	{
		2538	sv_upgrade (sockaddr, SVt_PV);
		2539	sv_grow (sockaddr, salen_);
		2540	}
		2541
		2542	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2543
		2544	retval = newmortalFH (res, O_RDWR);
		2545
		2546	if (res >= 0 && salen > 0)
		2547	{
		2548	if (salen_ > salen + 1)
		2549	salen_ = salen + 1;
		2550
		2551	SvPOK_only (sockaddr);
		2552	SvCUR_set (sockaddr, salen_);
		2553	}
		2554	#else
		2555	errno = ENOSYS;
		2556	retval = &PL_sv_undef;
		2557	#endif
		2558	XPUSHs (retval);
		2559	}
		2560
		2561	ssize_t
1856	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2562	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1857	CODE:	2563	CODE:
1858	{	2564	{
1859	#if HAVE_LINUX_SPLICE	2565	#if HAVE_LINUX_SPLICE
1860	loff_t off_in_, off_out_;	2566	loff_t off_in_, off_out_;
…		…
1868	#endif	2574	#endif
1869	}	2575	}
1870	OUTPUT:	2576	OUTPUT:
1871	RETVAL	2577	RETVAL
1872		2578
1873	int	2579	ssize_t
1874	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)	2580	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1875	CODE:	2581	CODE:
1876	#if HAVE_LINUX_SPLICE	2582	#if HAVE_LINUX_SPLICE
1877	RETVAL = tee (rfh, wfh, length, flags);	2583	RETVAL = tee (rfh, wfh, length, flags);
1878	#else	2584	#else
…		…
1918	{	2624	{
1919	EXTEND (SP, 2);	2625	EXTEND (SP, 2);
1920	PUSHs (newmortalFH (fd[0], O_RDONLY));	2626	PUSHs (newmortalFH (fd[0], O_RDONLY));
1921	PUSHs (newmortalFH (fd[1], O_WRONLY));	2627	PUSHs (newmortalFH (fd[1], O_WRONLY));
1922	}	2628	}
		2629	}
		2630
		2631	void
		2632	pidfd_open (int pid, unsigned int flags = 0)
		2633	PPCODE:
		2634	{
		2635	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2636	int fd = syscall (SYS_pidfd_open, pid, flags);
		2637	XPUSHs (newmortalFH (fd, O_RDWR));
		2638	}
		2639
		2640	int
		2641	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2642	PPCODE:
		2643	{
		2644	int res;
		2645	siginfo_t si = { 0 };
		2646
		2647	if (SvOK (siginfo))
		2648	{
		2649	HV *hv;
		2650	SV **svp;
		2651
		2652	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2653	croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
		2654
		2655	hv = (HV *)SvRV (siginfo);
		2656
		2657	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2658	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2659	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2660	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2661	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2662	}
		2663
		2664	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2665	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2666
		2667	XPUSHs (sv_2mortal (newSViv (res)));
		2668	}
		2669
		2670	void
		2671	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2672	PPCODE:
		2673	{
		2674	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2675	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2676	XPUSHs (newmortalFH (fd, O_RDWR));
		2677	}
		2678
		2679	void
		2680	eventfd (unsigned int initval = 0, int flags = 0)
		2681	PPCODE:
		2682	{
		2683	int fd;
		2684	#if HAVE_EVENTFD
		2685	fd = eventfd (initval, flags);
		2686	#else
		2687	fd = (errno = ENOSYS, -1);
		2688	#endif
		2689
		2690	XPUSHs (newmortalFH (fd, O_RDWR));
		2691	}
		2692
		2693	void
		2694	timerfd_create (int clockid, int flags = 0)
		2695	PPCODE:
		2696	{
		2697	int fd;
		2698	#if HAVE_TIMERFD
		2699	fd = timerfd_create (clockid, flags);
		2700	#else
		2701	fd = (errno = ENOSYS, -1);
		2702	#endif
		2703
		2704	XPUSHs (newmortalFH (fd, O_RDWR));
		2705	}
		2706
		2707	void
		2708	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2709	PPCODE:
		2710	{
		2711	int fd = s_fileno_croak (fh, 0);
		2712	#if HAVE_TIMERFD
		2713	int res;
		2714	struct itimerspec its, ots;
		2715
		2716	ts_set (&its.it_interval, interval);
		2717	ts_set (&its.it_value , value);
		2718	res = timerfd_settime (fd, flags, &its, &ots);
		2719
		2720	if (!res)
		2721	{
		2722	EXTEND (SP, 2);
		2723	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2724	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2725	}
		2726	#else
		2727	errno = ENOSYS;
		2728	#endif
		2729	}
		2730
		2731	void
		2732	timerfd_gettime (SV *fh)
		2733	PPCODE:
		2734	{
		2735	int fd = s_fileno_croak (fh, 0);
		2736	#if HAVE_TIMERFD
		2737	int res;
		2738	struct itimerspec ots;
		2739	res = timerfd_gettime (fd, &ots);
		2740
		2741	if (!res)
		2742	{
		2743	EXTEND (SP, 2);
		2744	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2745	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2746	}
		2747	#else
		2748	errno = ENOSYS;
		2749	#endif
		2750	}
		2751
		2752	void
		2753	memfd_create (SV8 *pathname, int flags = 0)
		2754	PPCODE:
		2755	{
		2756	int fd;
		2757	#if HAVE_MEMFD_CREATE
		2758	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2759	#else
		2760	fd = (errno = ENOSYS, -1);
		2761	#endif
		2762
		2763	XPUSHs (newmortalFH (fd, O_RDWR));
		2764	}
		2765
		2766	UV
		2767	get_fdlimit ()
		2768	CODE:
		2769	#if HAVE_RLIMITS
		2770	struct rlimit rl;
		2771	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2772	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2773	#endif
		2774	XSRETURN_UNDEF;
		2775	OUTPUT:
		2776	RETVAL
		2777
		2778	void
		2779	min_fdlimit (UV limit = 0x7fffffffU)
		2780	CODE:
		2781	{
		2782	#if HAVE_RLIMITS
		2783	struct rlimit rl;
		2784	rlim_t orig_rlim_max;
		2785	UV bit;
		2786
		2787	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2788	goto fail;
		2789
		2790	if (rl.rlim_cur == RLIM_INFINITY)
		2791	XSRETURN_YES;
		2792
		2793	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2794
		2795	if (rl.rlim_cur < limit)
		2796	{
		2797	rl.rlim_cur = limit;
		2798
		2799	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2800	rl.rlim_max = rl.rlim_cur;
		2801	}
		2802
		2803	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2804	XSRETURN_YES;
		2805
		2806	if (errno == EPERM)
		2807	{
		2808	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2809	/* our limit overflows a system-wide limit */
		2810	/* try an adaptive algorithm, but do not lower the hardlimit */
		2811	rl.rlim_max = 0;
		2812	for (bit = 0x40000000U; bit; bit >>= 1)
		2813	{
		2814	rl.rlim_max |= bit;
		2815	rl.rlim_cur = rl.rlim_max;
		2816
		2817	/* never decrease the hard limit */
		2818	if (rl.rlim_max < orig_rlim_max)
		2819	break;
		2820
		2821	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2822	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2823	}
		2824
		2825	/* now, raise the soft limit to the max permitted */
		2826	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2827	{
		2828	rl.rlim_cur = rl.rlim_max;
		2829	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2830	errno = EPERM;
		2831	}
		2832	}
		2833	#endif
		2834	fail:
		2835	XSRETURN_UNDEF;
1923	}	2836	}
1924		2837
1925	void _on_next_submit (SV *cb)	2838	void _on_next_submit (SV *cb)
1926	CODE:	2839	CODE:
1927	SvREFCNT_dec (on_next_submit);	2840	SvREFCNT_dec (on_next_submit);

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