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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 UTC vs.
Revision 1.276 by root, Wed Apr 3 03:03:53 2019 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>
22	#endif
23
24	/* the incompetent fool that created musl keeps __linux__, refuses	24	/* the incompetent fool that created musl keeps __linux__, refuses
25	* to implement any linux standard apis, and also has no way to test	25	* to implement any linux standard apis, and also has no way to test
26	* for his broken iplementation. on't complain if this fails for you.	26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
27	*/	28	*/
28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)	29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29	# include <linux/fs.h>	30	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	32	# include <linux/types.h>
…		…
74	#undef fchmod	75	#undef fchmod
75	#undef dup	76	#undef dup
76	#undef dup2	77	#undef dup2
77	#undef abort	78	#undef abort
78	#undef pipe	79	#undef pipe
		80	#undef utime
79		81
80	#define EIO_STRUCT_STAT struct _stati64	82	#define EIO_STRUCT_STAT struct _stati64
81	#define EIO_STRUCT_STATI64	83	#define EIO_STRUCT_STATI64
82		84
83	#else	85	#else
…		…
102		104
103	#define expect_false(expr) expect ((expr) != 0, 0)	105	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	106	#define expect_true(expr) expect ((expr) != 0, 1)
105		107
106	/*****************************************************************************/	108	/*****************************************************************************/
		109
		110	#include "config.h"
		111
		112	#if HAVE_SYS_MKDEV_H
		113	# include <sys/mkdev.h>
		114	#elif HAVE_SYS_SYSMACROS_H
		115	# include <sys/sysmacros.h>
		116	#endif
		117
		118	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		119	# include <sys/mman.h>
		120	#endif
		121
		122	#if HAVE_SYS_UIO_H
		123	# include <sys/uio.h>
		124	#endif
		125
		126	#if HAVE_ST_XTIMENSEC
		127	# define ATIMENSEC PL_statcache.st_atimensec
		128	# define MTIMENSEC PL_statcache.st_mtimensec
		129	# define CTIMENSEC PL_statcache.st_ctimensec
		130	#elif HAVE_ST_XTIMESPEC
		131	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		132	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		133	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		134	#else
		135	# define ATIMENSEC 0
		136	# define MTIMENSEC 0
		137	# define CTIMENSEC 0
		138	#endif
		139
		140	#if HAVE_ST_BIRTHTIMENSEC
		141	# define BTIMESEC PL_statcache.st_birthtime
		142	# define BTIMENSEC PL_statcache.st_birthtimensec
		143	#elif HAVE_ST_BIRTHTIMESPEC
		144	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		145	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		146	#else
		147	# define BTIMESEC 0
		148	# define BTIMENSEC 0
		149	#endif
		150
		151	#if HAVE_ST_GEN
		152	# define ST_GEN PL_statcache.st_gen
		153	#else
		154	# define ST_GEN 0
		155	#endif
		156
		157	#include "schmorp.h"
		158
		159	#if HAVE_EVENTFD
		160	# include <sys/eventfd.h>
		161	#endif
		162
		163	#if HAVE_TIMERFD
		164	# include <sys/timerfd.h>
		165	#endif
		166
		167	#if HAVE_RLIMITS
		168	#include <sys/time.h>
		169	#include <sys/resource.h>
		170	#endif
107		171
108	typedef SV SV8; /* byte-sv, used for argument-checking */	172	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	173	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	174	typedef int aio_wfd; /* write file descriptor */
111		175
…		…
118	STRLEN stroffset; \	182	STRLEN stroffset; \
119	SV *self;	183	SV *self;
120		184
121	#define EIO_NO_WRAPPERS 1	185	#define EIO_NO_WRAPPERS 1
122		186
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	187	#include "libeio/eio.h"
125		188
126	static int req_invoke (eio_req *req);	189	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	190	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	191	static void req_destroy (eio_req *grp);
…		…
144	# else	207	# else
145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	208	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
146	# endif	209	# endif
147	#endif	210	#endif
148		211
149	/* defines all sorts of constants to 0 unless they are already defined */
150	#include "def0.h"
151
152	#ifndef makedev	212	#ifndef makedev
153	# define makedev(maj,min) (((maj) << 8) | (min))	213	# define makedev(maj,min) (((maj) << 8) | (min))
154	#endif	214	#endif
155	#ifndef major	215	#ifndef major
156	# define major(dev) ((dev) >> 8)	216	# define major(dev) ((dev) >> 8)
157	#endif	217	#endif
158	#ifndef minor	218	#ifndef minor
159	# define minor(dev) ((dev) & 0xff)	219	# define minor(dev) ((dev) & 0xff)
160	#endif	220	#endif
161		221
		222	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		223	#ifdef __sun
		224	# undef PAGESIZE
		225	#endif
		226
162	#if PAGESIZE <= 0	227	#if PAGESIZE <= 0
163	# define PAGESIZE sysconf (_SC_PAGESIZE)	228	# define PAGESIZE sysconf (_SC_PAGESIZE)
164	#endif	229	#endif
		230
		231	/*****************************************************************************/
		232
		233	#if !_POSIX_MAPPED_FILES
		234	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		235	# define munmap(addr,length) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !_POSIX_MEMORY_PROTECTION
		239	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		240	#endif
		241
		242	#if !MREMAP_MAYMOVE
		243	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		244	#endif
		245
		246	#define FOREIGN_MAGIC PERL_MAGIC_ext
		247
		248	static int ecb_cold
		249	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		250	{
		251	int old_errno = errno;
		252	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		253	errno = old_errno;
		254
		255	mg->mg_obj = 0; /* just in case */
		256
		257	SvREADONLY_off (sv);
		258
		259	if (SvPVX (sv) != mg->mg_ptr)
		260	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		261
		262	SvCUR_set (sv, 0);
		263	SvPVX (sv) = 0;
		264	SvOK_off (sv);
		265
		266	return 0;
		267	}
		268
		269	static MGVTBL mmap_vtbl = {
		270	0, 0, 0, 0, mmap_free
		271	};
		272
		273	static int ecb_cold
		274	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		275	{
		276	free (mg->mg_ptr);
		277	mg->mg_obj = 0; /* just in case */
		278
		279	SvREADONLY_off (sv);
		280
		281	if (SvPVX (sv) != mg->mg_ptr)
		282	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		283
		284	SvCUR_set (sv, 0);
		285	SvPVX (sv) = 0;
		286	SvOK_off (sv);
		287
		288	return 0;
		289	}
		290
		291	static MGVTBL sysfree_vtbl = {
		292	0, 0, 0, 0, sysfree_free
		293	};
		294
		295	/*****************************************************************************/
		296
		297	/* helper: set scalar to foreign ptr with custom free */
		298	ecb_noinline
		299	static void
		300	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		301	{
		302	sv_force_normal (sv);
		303
		304	/* we store the length in mg_obj, as namlen is I32 :/ */
		305	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		306	->mg_obj = (SV *)length;
		307
		308	SvUPGRADE (sv, SVt_PV); /* nop... */
		309
		310	if (SvLEN (sv))
		311	Safefree (SvPVX (sv));
		312
		313	SvPVX (sv) = (char *)addr;
		314	SvCUR_set (sv, length);
		315	SvLEN_set (sv, 0);
		316	SvPOK_only (sv);
		317	}
		318
		319	static void
		320	sv_clear_foreign (SV *sv)
		321	{
		322	/* todo: iterate over magic and only free ours, but of course */
		323	/* the perl5porters will call that (correct) behaviour buggy */
		324	sv_unmagic (sv, FOREIGN_MAGIC);
		325	}
		326
		327	/*****************************************************************************/
		328
		329	/* defines all sorts of constants to 0 unless they are already defined */
		330	/* also provides const_iv_ and const_niv_ macros for them */
		331	#include "def0.h"
165		332
166	/*****************************************************************************/	333	/*****************************************************************************/
167		334
168	static void	335	static void
169	fiemap (eio_req *req)	336	fiemap (eio_req *req)
…		…
261	#endif	428	#endif
262	}	429	}
263		430
264	/*****************************************************************************/	431	/*****************************************************************************/
265		432
		433	static int close_fd; /* dummy fd to close fds via dup2 */
		434
		435	#if HAVE_STATX
		436	static struct statx stx;
		437	#define statx_offsetof(member) offsetof (struct statx, member)
		438	#define eio__statx statx
		439	#else
		440	#define statx_offsetof(member) 0
		441	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		442	#endif
		443
266	enum {	444	enum {
267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	445	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268	};	446	};
269		447
270	typedef eio_req *aio_req;	448	typedef eio_req *aio_req;
…		…
293	/* read any signals sent by the worker threads */	471	/* read any signals sent by the worker threads */
294	s_epipe_drain (&respipe);	472	s_epipe_drain (&respipe);
295	}	473	}
296		474
297	/* must be called at most once */	475	/* must be called at most once */
		476	ecb_noinline
298	static SV *	477	static SV *
299	req_sv (aio_req req, HV *stash)	478	req_sv (aio_req req, HV *stash)
300	{	479	{
301	if (!req->self)	480	if (!req->self)
302	{	481	{
…		…
311	newSVaio_wd (aio_wd wd)	490	newSVaio_wd (aio_wd wd)
312	{	491	{
313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);	492	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314	}	493	}
315		494
		495	ecb_noinline
316	static aio_req	496	static aio_req
317	SvAIO_REQ (SV *sv)	497	SvAIO_REQ (SV *sv)
318	{	498	{
319	MAGIC *mg;	499	MAGIC *mg;
320		500
…		…
337	|| SvTYPE (SvRV (sv)) != SVt_PVMG	517	|| SvTYPE (SvRV (sv)) != SVt_PVMG
338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	518	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	519	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340		520
341	return (aio_wd)(long)SvIVX (SvRV (sv));	521	return (aio_wd)(long)SvIVX (SvRV (sv));
		522	}
		523
		524	static SV *
		525	newmortalFH (int fd, int flags)
		526	{
		527	if (fd < 0)
		528	return &PL_sv_undef;
		529
		530	GV *gv = (GV *)sv_newmortal ();
		531	char sym[64];
		532	int symlen;
		533
		534	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		535	gv_init (gv, aio_stash, sym, symlen, 0);
		536
		537	symlen = snprintf (
		538	sym,
		539	sizeof (sym),
		540	"%s&=%d",
		541	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		542	fd
		543	);
		544
		545	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		546	? (SV *)gv : &PL_sv_undef;
342	}	547	}
343		548
344	static void	549	static void
345	aio_grp_feed (aio_req grp)	550	aio_grp_feed (aio_req grp)
346	{	551	{
…		…
358	FREETMPS;	563	FREETMPS;
359	LEAVE;	564	LEAVE;
360	}	565	}
361	}	566	}
362		567
		568	ecb_noinline
363	static void	569	static void
364	req_submit (eio_req *req)	570	req_submit (eio_req *req)
365	{	571	{
366	eio_submit (req);	572	eio_submit (req);
367		573
…		…
474	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	680	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
475	}	681	}
476	break;	682	break;
477		683
478	case EIO_OPEN:	684	case EIO_OPEN:
479	{	685	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
480	/* convert fd to fh */
481	SV *fh = &PL_sv_undef;
482
483	if (req->result >= 0)
484	{
485	GV *gv = (GV *)sv_newmortal ();
486	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
487	char sym [64];
488	int symlen;
489
490	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
491	gv_init (gv, aio_stash, sym, symlen, 0);
492
493	symlen = snprintf (
494	sym,
495	sizeof (sym),
496	"%s&=%d",
497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498	(int)req->result
499	);
500
501	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
502	fh = (SV *)gv;
503	}
504
505	PUSHs (fh);
506	}
507	break;	686	break;
508		687
509	case EIO_STATVFS:	688	case EIO_STATVFS:
510	case EIO_FSTATVFS:	689	case EIO_FSTATVFS:
511	{	690	{
…		…
591	SvSETMAGIC (req->sv2);	770	SvSETMAGIC (req->sv2);
592	PUSHs (sv_result);	771	PUSHs (sv_result);
593	}	772	}
594	break;	773	break;
595		774
		775	case EIO_SLURP:
		776	{
		777	if (req->result >= 0)
		778	{
		779	/* if length was originally not known, we steal the malloc'ed memory */
		780	if (req->flags & EIO_FLAG_PTR2_FREE)
		781	{
		782	req->flags &= ~EIO_FLAG_PTR2_FREE;
		783	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		784	}
		785	else
		786	{
		787	SvCUR_set (req->sv2, req->result);
		788	*SvEND (req->sv2) = 0;
		789	SvPOK_only (req->sv2);
		790	}
		791
		792	SvSETMAGIC (req->sv2);
		793	}
		794
		795	PUSHs (sv_result);
		796	}
		797	break;
		798
596	case EIO_CUSTOM:	799	case EIO_CUSTOM:
597	if (req->feed == fiemap)	800	if (req->feed == fiemap)
598	{	801	{
599	#if HAVE_FIEMAP	802	#if HAVE_FIEMAP
600	if (!req->result)	803	if (!req->result)
…		…
631	}	834	}
632	else	835	else
633	PUSHs (sv_result);	836	PUSHs (sv_result);
634	break;	837	break;
635		838
		839	#if 0
		840	case EIO_CLOSE:
		841	PerlIOUnix_refcnt_dec (req->int1);
		842	break;
		843	#endif
		844
636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	845	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637	if (req->result > 0)	846	if (req->result > 0)
638	SvIV_set (sv_result, 0);	847	SvIV_set (sv_result, 0);
639	/* FALLTHROUGH */	848	/* FALLTHROUGH */
640		849
…		…
691	grp->sv2 = 0;	900	grp->sv2 = 0;
692		901
693	eio_grp_cancel (grp);	902	eio_grp_cancel (grp);
694	}	903	}
695		904
696	static void ecb_cold	905	ecb_cold
		906	static void
697	create_respipe (void)	907	create_respipe (void)
698	{	908	{
699	if (s_epipe_renew (&respipe))	909	if (s_epipe_renew (&respipe))
700	croak ("IO::AIO: unable to initialize result pipe");	910	croak ("IO::AIO: unable to initialize result pipe");
701	}	911	}
…		…
705	{	915	{
706	while (eio_nreqs ())	916	while (eio_nreqs ())
707	{	917	{
708	int size;	918	int size;
709		919
710	X_LOCK (reslock);	920	X_LOCK (EIO_POOL->reslock);
711	size = res_queue.size;	921	size = EIO_POOL->res_queue.size;
712	X_UNLOCK (reslock);	922	X_UNLOCK (EIO_POOL->reslock);
713		923
714	if (size)	924	if (size)
715	return;	925	return;
716		926
717	etp_maybe_start_thread ();	927	etp_maybe_start_thread (EIO_POOL);
718		928
719	s_epipe_wait (&respipe);	929	s_epipe_wait (&respipe);
720	}	930	}
721	}	931	}
722		932
…		…
735		945
736	poll_wait ();	946	poll_wait ();
737	}	947	}
738	}	948	}
739		949
740	static void ecb_cold	950	ecb_cold
		951	static void
741	reinit (void)	952	reinit (void)
742	{	953	{
743	create_respipe ();	954	create_respipe ();
744		955
745	if (eio_init (want_poll, done_poll) < 0)	956	if (eio_init (want_poll, done_poll) < 0)
746	croak ("IO::AIO: unable to initialise eio library");	957	croak ("IO::AIO: unable to initialise eio library");
747	}	958	}
748		959
749	/*****************************************************************************/	960	/*****************************************************************************/
750		961
751	#if !_POSIX_MAPPED_FILES
752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753	# define munmap(addr,length) EIO_ENOSYS ()
754	#endif
755
756	#if !_POSIX_MEMORY_PROTECTION
757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
758	# define PROT_NONE 0
759	# define PROT_WRITE 0
760	# define MAP_PRIVATE 0
761	# define MAP_SHARED 0
762	# define MAP_FIXED 0
763	#endif
764
765	#define MMAP_MAGIC PERL_MAGIC_ext
766
767	static int ecb_cold
768	mmap_free (pTHX_ SV *sv, MAGIC *mg)
769	{
770	int old_errno = errno;
771	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
772	errno = old_errno;
773
774	mg->mg_obj = 0; /* just in case */
775
776	SvREADONLY_off (sv);
777
778	if (SvPVX (sv) != mg->mg_ptr)
779	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
780
781	SvCUR_set (sv, 0);
782	SvPVX (sv) = 0;
783	SvOK_off (sv);
784
785	return 0;
786	}
787
788	static MGVTBL mmap_vtbl = {
789	0, 0, 0, 0, mmap_free
790	};
791
792	/*****************************************************************************/
793
794	static SV *	962	static SV *
795	get_cb (SV *cb_sv)	963	get_cb (SV *cb_sv)
796	{	964	{
797	SvGETMAGIC (cb_sv);	965	SvGETMAGIC (cb_sv);
798	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	966	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
799	}	967	}
800		968
		969	ecb_noinline
801	static aio_req ecb_noinline	970	static aio_req ecb_noinline
802	dreq (SV *callback)	971	dreq (SV *callback)
803	{	972	{
804	SV *cb_cv;	973	SV *cb_cv;
805	aio_req req;	974	aio_req req;
…		…
827	SPAGAIN; \	996	SPAGAIN; \
828	\	997	\
829	if (GIMME_V != G_VOID) \	998	if (GIMME_V != G_VOID) \
830	XPUSHs (req_sv (req, aio_req_stash));	999	XPUSHs (req_sv (req, aio_req_stash));
831		1000
		1001	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
832	ecb_inline void	1002	ecb_inline
		1003	void
833	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	1004	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
834	{	1005	{
835	if (expect_false (SvROK (path)))	1006	if (expect_false (SvROK (path)))
836	{	1007	{
837	SV *rv = SvRV (path);	1008	SV *rv = SvRV (path);
838	SV *wdob;	1009	SV *wdob;
…		…
863		1034
864	*pathsv = newSVsv (path);	1035	*pathsv = newSVsv (path);
865	*ptr = SvPVbyte_nolen (*pathsv);	1036	*ptr = SvPVbyte_nolen (*pathsv);
866	}	1037	}
867		1038
868	static void ecb_noinline	1039	ecb_noinline
		1040	static void
869	req_set_path1 (aio_req req, SV *path)	1041	req_set_path1 (aio_req req, SV *path)
870	{	1042	{
871	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1043	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
872	}	1044	}
873		1045
874	static void ecb_noinline	1046	ecb_noinline
		1047	static void
875	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1048	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
876	{	1049	{
877	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1050	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
878		1051
879	switch (SvTYPE (rv))	1052	switch (SvTYPE (rv))
…		…
891	req_set_path1 (req, fh_or_path);	1064	req_set_path1 (req, fh_or_path);
892	break;	1065	break;
893	}	1066	}
894	}	1067	}
895		1068
		1069	/*****************************************************************************/
		1070
		1071	static void
		1072	ts_set (struct timespec *ts, NV value)
		1073	{
		1074	ts->tv_sec = value;
		1075	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1076	}
		1077
		1078	static NV
		1079	ts_get (const struct timespec *ts)
		1080	{
		1081	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1082	}
		1083
		1084	/*****************************************************************************/
		1085
896	XS(boot_IO__AIO) ecb_cold;	1086	XS(boot_IO__AIO) ecb_cold;
897		1087
898	MODULE = IO::AIO PACKAGE = IO::AIO	1088	MODULE = IO::AIO PACKAGE = IO::AIO
899		1089
900	PROTOTYPES: ENABLE	1090	PROTOTYPES: ENABLE
…		…
907	} *civ, const_iv[] = {	1097	} *civ, const_iv[] = {
908	# define const_niv(name, value) { # name, (IV) value },	1098	# define const_niv(name, value) { # name, (IV) value },
909	# define const_iv(name) { # name, (IV) name },	1099	# define const_iv(name) { # name, (IV) name },
910	# define const_eio(name) { # name, (IV) EIO_ ## name },	1100	# define const_eio(name) { # name, (IV) EIO_ ## name },
911		1101
912	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1102	/* you have to re-run ./gendef0 after adding/removing any constants here */
913		1103	/* the first block can be undef if missing */
914	const_iv (ENOSYS)	1104	const_iv (ENOSYS)
915	const_iv (EXDEV)	1105	const_iv (EXDEV)
916	const_iv (EBADR)	1106	const_iv (EBADR)
		1107
		1108	/* for lseek */
		1109	const_iv (SEEK_DATA)
		1110	const_iv (SEEK_HOLE)
		1111
		1112	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1113	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1114	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1115	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1116	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1117	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1118
		1119	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1120	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1121	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1122	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1123	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1124
		1125	/* the second block will be 0 when missing */
		1126	const_iv (O_ACCMODE)
917		1127
918	const_iv (O_RDONLY)	1128	const_iv (O_RDONLY)
919	const_iv (O_WRONLY)	1129	const_iv (O_WRONLY)
920	const_iv (O_RDWR)	1130	const_iv (O_RDWR)
921	const_iv (O_CREAT)	1131	const_iv (O_CREAT)
…		…
935	const_iv (O_SEARCH)	1145	const_iv (O_SEARCH)
936	const_iv (O_DIRECTORY)	1146	const_iv (O_DIRECTORY)
937	const_iv (O_DSYNC)	1147	const_iv (O_DSYNC)
938	const_iv (O_RSYNC)	1148	const_iv (O_RSYNC)
939	const_iv (O_SYNC)	1149	const_iv (O_SYNC)
		1150	const_iv (O_PATH)
		1151	const_iv (O_TMPFILE)
940	const_iv (O_TTY_INIT)	1152	const_iv (O_TTY_INIT)
941		1153
942	const_iv (S_IFIFO)	1154	const_iv (S_IFIFO)
943	const_iv (S_IFCHR)	1155	const_iv (S_IFCHR)
944	const_iv (S_IFBLK)	1156	const_iv (S_IFBLK)
…		…
946	const_iv (S_IFREG)	1158	const_iv (S_IFREG)
947	const_iv (S_IFDIR)	1159	const_iv (S_IFDIR)
948	const_iv (S_IFWHT)	1160	const_iv (S_IFWHT)
949	const_iv (S_IFSOCK)	1161	const_iv (S_IFSOCK)
950	const_iv (S_IFMT)	1162	const_iv (S_IFMT)
951
952	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964		1163
965	const_iv (ST_RDONLY)	1164	const_iv (ST_RDONLY)
966	const_iv (ST_NOSUID)	1165	const_iv (ST_NOSUID)
967	const_iv (ST_NODEV)	1166	const_iv (ST_NODEV)
968	const_iv (ST_NOEXEC)	1167	const_iv (ST_NOEXEC)
…		…
978	const_iv (PROT_NONE)	1177	const_iv (PROT_NONE)
979	const_iv (PROT_EXEC)	1178	const_iv (PROT_EXEC)
980	const_iv (PROT_READ)	1179	const_iv (PROT_READ)
981	const_iv (PROT_WRITE)	1180	const_iv (PROT_WRITE)
982		1181
983	/*const_iv (MAP_FIXED)*/
984	const_iv (MAP_PRIVATE)	1182	const_iv (MAP_PRIVATE)
985	const_iv (MAP_SHARED)	1183	const_iv (MAP_SHARED)
		1184	const_iv (MAP_FIXED)
986	const_iv (MAP_ANONYMOUS)	1185	const_iv (MAP_ANONYMOUS)
987		1186
988	/* linuxish */	1187	/* linuxish */
989	const_iv (MAP_HUGETLB)
990	const_iv (MAP_LOCKED)	1188	const_iv (MAP_LOCKED)
991	const_iv (MAP_NORESERVE)	1189	const_iv (MAP_NORESERVE)
992	const_iv (MAP_POPULATE)	1190	const_iv (MAP_POPULATE)
993	const_iv (MAP_NONBLOCK)	1191	const_iv (MAP_NONBLOCK)
		1192	const_iv (MAP_GROWSDOWN)
		1193	const_iv (MAP_32BIT)
		1194	const_iv (MAP_HUGETLB)
		1195	const_iv (MAP_STACK)
		1196
		1197	const_iv (MREMAP_MAYMOVE)
		1198	const_iv (MREMAP_FIXED)
		1199
		1200	const_iv (F_DUPFD_CLOEXEC)
		1201
		1202	const_iv (MSG_CMSG_CLOEXEC)
		1203	const_iv (SOCK_CLOEXEC)
		1204
		1205	const_iv (F_OFD_GETLK)
		1206	const_iv (F_OFD_SETLK)
		1207	const_iv (F_OFD_GETLKW)
		1208
		1209	const_iv (FIFREEZE)
		1210	const_iv (FITHAW)
		1211	const_iv (FITRIM)
		1212	const_iv (FICLONE)
		1213	const_iv (FICLONERANGE)
		1214	const_iv (FIDEDUPERANGE)
		1215
		1216	const_iv (FS_IOC_GETFLAGS)
		1217	const_iv (FS_IOC_SETFLAGS)
		1218	const_iv (FS_IOC_GETVERSION)
		1219	const_iv (FS_IOC_SETVERSION)
		1220	const_iv (FS_IOC_FIEMAP)
		1221	const_iv (FS_IOC_FSGETXATTR)
		1222	const_iv (FS_IOC_FSSETXATTR)
		1223	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1224	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1225	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1226
		1227	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1228
		1229	const_iv (FS_SECRM_FL)
		1230	const_iv (FS_UNRM_FL)
		1231	const_iv (FS_COMPR_FL)
		1232	const_iv (FS_SYNC_FL)
		1233	const_iv (FS_IMMUTABLE_FL)
		1234	const_iv (FS_APPEND_FL)
		1235	const_iv (FS_NODUMP_FL)
		1236	const_iv (FS_NOATIME_FL)
		1237	const_iv (FS_DIRTY_FL)
		1238	const_iv (FS_COMPRBLK_FL)
		1239	const_iv (FS_NOCOMP_FL)
		1240	const_iv (FS_ENCRYPT_FL)
		1241	const_iv (FS_BTREE_FL)
		1242	const_iv (FS_INDEX_FL)
		1243	const_iv (FS_JOURNAL_DATA_FL)
		1244	const_iv (FS_NOTAIL_FL)
		1245	const_iv (FS_DIRSYNC_FL)
		1246	const_iv (FS_TOPDIR_FL)
		1247	const_iv (FS_FL_USER_MODIFIABLE)
		1248
		1249	const_iv (FS_XFLAG_REALTIME)
		1250	const_iv (FS_XFLAG_PREALLOC)
		1251	const_iv (FS_XFLAG_IMMUTABLE)
		1252	const_iv (FS_XFLAG_APPEND)
		1253	const_iv (FS_XFLAG_SYNC)
		1254	const_iv (FS_XFLAG_NOATIME)
		1255	const_iv (FS_XFLAG_NODUMP)
		1256	const_iv (FS_XFLAG_RTINHERIT)
		1257	const_iv (FS_XFLAG_PROJINHERIT)
		1258	const_iv (FS_XFLAG_NOSYMLINKS)
		1259	const_iv (FS_XFLAG_EXTSIZE)
		1260	const_iv (FS_XFLAG_EXTSZINHERIT)
		1261	const_iv (FS_XFLAG_NODEFRAG)
		1262	const_iv (FS_XFLAG_FILESTREAM)
		1263	const_iv (FS_XFLAG_DAX)
		1264	const_iv (FS_XFLAG_HASATTR)
994		1265
995	const_iv (FIEMAP_FLAG_SYNC)	1266	const_iv (FIEMAP_FLAG_SYNC)
996	const_iv (FIEMAP_FLAG_XATTR)	1267	const_iv (FIEMAP_FLAG_XATTR)
997	const_iv (FIEMAP_FLAGS_COMPAT)	1268	const_iv (FIEMAP_FLAGS_COMPAT)
998	const_iv (FIEMAP_EXTENT_LAST)	1269	const_iv (FIEMAP_EXTENT_LAST)
…		…
1010	const_iv (SPLICE_F_MOVE)	1281	const_iv (SPLICE_F_MOVE)
1011	const_iv (SPLICE_F_NONBLOCK)	1282	const_iv (SPLICE_F_NONBLOCK)
1012	const_iv (SPLICE_F_MORE)	1283	const_iv (SPLICE_F_MORE)
1013	const_iv (SPLICE_F_GIFT)	1284	const_iv (SPLICE_F_GIFT)
1014		1285
		1286	const_iv (EFD_CLOEXEC)
		1287	const_iv (EFD_NONBLOCK)
		1288	const_iv (EFD_SEMAPHORE)
		1289
		1290	const_iv (MFD_CLOEXEC)
		1291	const_iv (MFD_ALLOW_SEALING)
		1292	const_iv (MFD_HUGETLB)
		1293
		1294	const_iv (CLOCK_REALTIME)
		1295	const_iv (CLOCK_MONOTONIC)
		1296	const_iv (CLOCK_BOOTTIME)
		1297	const_iv (CLOCK_REALTIME_ALARM)
		1298	const_iv (CLOCK_BOOTTIME_ALARM)
		1299
		1300	const_iv (TFD_NONBLOCK)
		1301	const_iv (TFD_CLOEXEC)
		1302
		1303	const_iv (TFD_TIMER_ABSTIME)
		1304	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1305
		1306	const_iv (STATX_TYPE)
		1307	const_iv (STATX_MODE)
		1308	const_iv (STATX_NLINK)
		1309	const_iv (STATX_UID)
		1310	const_iv (STATX_GID)
		1311	const_iv (STATX_ATIME)
		1312	const_iv (STATX_MTIME)
		1313	const_iv (STATX_CTIME)
		1314	const_iv (STATX_INO)
		1315	const_iv (STATX_SIZE)
		1316	const_iv (STATX_BLOCKS)
		1317	const_iv (STATX_BASIC_STATS)
1015	const_iv (SEEK_DATA)	1318	const_iv (STATX_ALL)
1016	const_iv (SEEK_HOLE)	1319	const_iv (STATX_BTIME)
		1320	const_iv (STATX_ATTR_COMPRESSED)
		1321	const_iv (STATX_ATTR_IMMUTABLE)
		1322	const_iv (STATX_ATTR_APPEND)
		1323	const_iv (STATX_ATTR_NODUMP)
		1324	const_iv (STATX_ATTR_ENCRYPTED)
		1325	const_iv (STATX_ATTR_AUTOMOUNT)
1017		1326
1018	/* libeio constants */	1327	/* these are libeio constants, and are independent of gendef0 */
1019	const_eio (SEEK_SET)	1328	const_eio (SEEK_SET)
1020	const_eio (SEEK_CUR)	1329	const_eio (SEEK_CUR)
1021	const_eio (SEEK_END)	1330	const_eio (SEEK_END)
1022		1331
1023	const_eio (MCL_FUTURE)	1332	const_eio (MCL_FUTURE)
1024	const_eio (MCL_CURRENT)	1333	const_eio (MCL_CURRENT)
		1334	const_eio (MCL_ONFAULT)
1025		1335
1026	const_eio (MS_ASYNC)	1336	const_eio (MS_ASYNC)
1027	const_eio (MS_INVALIDATE)	1337	const_eio (MS_INVALIDATE)
1028	const_eio (MS_SYNC)	1338	const_eio (MS_SYNC)
1029		1339
…		…
1035		1345
1036	const_eio (FALLOC_FL_KEEP_SIZE)	1346	const_eio (FALLOC_FL_KEEP_SIZE)
1037	const_eio (FALLOC_FL_PUNCH_HOLE)	1347	const_eio (FALLOC_FL_PUNCH_HOLE)
1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1348	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039	const_eio (FALLOC_FL_ZERO_RANGE)	1349	const_eio (FALLOC_FL_ZERO_RANGE)
		1350	const_eio (FALLOC_FL_INSERT_RANGE)
		1351	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1352
		1353	const_eio (RENAME_NOREPLACE)
		1354	const_eio (RENAME_EXCHANGE)
		1355	const_eio (RENAME_WHITEOUT)
1040		1356
1041	const_eio (READDIR_DENTS)	1357	const_eio (READDIR_DENTS)
1042	const_eio (READDIR_DIRS_FIRST)	1358	const_eio (READDIR_DIRS_FIRST)
1043	const_eio (READDIR_STAT_ORDER)	1359	const_eio (READDIR_STAT_ORDER)
1044	const_eio (READDIR_FOUND_UNKNOWN)	1360	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1378	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1379	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1064		1380
1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1381	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1066		1382
		1383	/* allocate dummy pipe fd for aio_close */
		1384	{
		1385	int pipefd [2];
		1386
		1387	if (
		1388	#ifdef _WIN32
		1389	_pipe (pipefd, 1, _O_BINARY) < 0
		1390	#else
		1391	pipe (pipefd) < 0
		1392	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1393	#endif
		1394	|| close (pipefd [1]) < 0
		1395	)
		1396	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1397
		1398	close_fd = pipefd [0];
		1399	}
		1400
1067	reinit ();	1401	reinit ();
1068	}	1402	}
1069		1403
1070	void	1404	void
1071	reinit ()	1405	reinit ()
…		…
1193		1527
1194	void	1528	void
1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)	1529	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196	PPCODE:	1530	PPCODE:
1197	{	1531	{
1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199	int fd = s_fileno_croak (fh, 0);	1532	int fd = s_fileno_croak (fh, 0);
1200	dREQ;	1533	dREQ;
		1534	#if 0
		1535	/* partially duplicate logic in s_fileno */
		1536	SvGETMAGIC (fh);
1201		1537
1202	if (expect_false (close_fd < 0))	1538	if (SvROK (fh))
		1539	{
		1540	fh = SvRV (fh);
		1541	SvGETMAGIC (fh);
		1542	}
		1543
		1544	if (SvTYPE (fh) == SVt_PVGV)
1203	{	1545	{
1204	int pipefd [2];	1546	/* perl filehandle */
		1547	PerlIOUnix_refcnt_inc (fd);
		1548	do_close ((GV *)fh, 1);
1205		1549
1206	if (	1550	req->type = EIO_CLOSE;
1207	#ifdef _WIN32	1551	req->int1 = fd;
1208	_pipe (pipefd, 1, _O_BINARY) < 0	1552	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1209	#else
1210	pipe (pipefd) < 0
1211	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1212	#endif
1213	|| close (pipefd [1]) < 0
1214	)
1215	abort (); /*D*/
1216
1217	close_fd = pipefd [0];
1218	}	1553	}
1219		1554	else
		1555	#endif
		1556	{
		1557	/* fd number */
1220	req->type = EIO_DUP2;	1558	req->type = EIO_DUP2;
1221	req->int1 = close_fd;	1559	req->int1 = close_fd;
1222	req->sv2 = newSVsv (fh);	1560	req->sv2 = newSVsv (fh);
1223	req->int2 = fd;	1561	req->int2 = fd;
		1562	}
1224		1563
1225	REQ_SEND;	1564	REQ_SEND;
1226	}	1565	}
1227		1566
1228	void	1567	void
…		…
1295	REQ_SEND;	1634	REQ_SEND;
1296	}	1635	}
1297	}	1636	}
1298		1637
1299	void	1638	void
		1639	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1640	ALIAS:
		1641	aio_ioctl = EIO_IOCTL
		1642	aio_fcntl = EIO_FCNTL
		1643	PPCODE:
		1644	{
		1645	int fd = s_fileno_croak (fh, 0);
		1646	char *svptr;
		1647
		1648	if (SvPOK (arg) || !SvNIOK (arg))
		1649	{
		1650	STRLEN svlen;
		1651	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1652	#ifdef IOCPARM_LEN
		1653	STRLEN need = IOCPARM_LEN (request);
		1654	#else
		1655	STRLEN need = 256;
		1656	#endif
		1657
		1658	if (svlen < need)
		1659	svptr = SvGROW (arg, need);
		1660	}
		1661	else
		1662	svptr = (char *)SvIV (arg);
		1663
		1664	{
		1665	dREQ;
		1666
		1667	req->type = ix;
		1668	req->sv1 = newSVsv (fh);
		1669	req->int1 = fd;
		1670	req->int2 = (long)request;
		1671	req->sv2 = SvREFCNT_inc (arg);
		1672	req->ptr2 = svptr;
		1673
		1674	REQ_SEND;
		1675	}
		1676	}
		1677
		1678	void
1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)	1679	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1301	ALIAS:	1680	ALIAS:
1302	aio_readlink = EIO_READLINK	1681	aio_readlink = EIO_READLINK
1303	aio_realpath = EIO_REALPATH	1682	aio_realpath = EIO_REALPATH
1304	PPCODE:	1683	PPCODE:
…		…
1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1738	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1360		1739
1361	REQ_SEND;	1740	REQ_SEND;
1362	}	1741	}
1363		1742
		1743	void
		1744	st_xtime ()
		1745	ALIAS:
		1746	st_atime = 0x01
		1747	st_mtime = 0x02
		1748	st_ctime = 0x04
		1749	st_btime = 0x08
		1750	st_xtime = 0x0f
		1751	PPCODE:
		1752	EXTEND (SP, 4);
		1753	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1754	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1755	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1756	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1757
		1758	void
		1759	st_xtimensec ()
		1760	ALIAS:
		1761	st_atimensec = 0x01
		1762	st_mtimensec = 0x02
		1763	st_ctimensec = 0x04
		1764	st_btimensec = 0x08
		1765	st_xtimensec = 0x0f
		1766	st_btimesec = 0x10
		1767	st_gen = 0x20
		1768	PPCODE:
		1769	EXTEND (SP, 4);
		1770	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1771	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1772	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1773	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1774	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1775	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1776
1364	UV	1777	UV
1365	major (UV dev)	1778	major (UV dev)
1366	ALIAS:	1779	ALIAS:
1367	minor = 1	1780	minor = 1
1368	CODE:	1781	CODE:
1369	RETVAL = ix ? major (dev) : minor (dev);	1782	RETVAL = ix ? minor (dev) : major (dev);
1370	OUTPUT:	1783	OUTPUT:
1371	RETVAL	1784	RETVAL
1372		1785
1373	UV	1786	UV
1374	makedev (UV maj, UV min)	1787	makedev (UV maj, UV min)
…		…
1484	eio_wd wd2 = 0;	1897	eio_wd wd2 = 0;
1485	dREQ;	1898	dREQ;
1486		1899
1487	req->type = ix;	1900	req->type = ix;
1488	req_set_path1 (req, oldpath);	1901	req_set_path1 (req, oldpath);
1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1902	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1903	req->int3 = (long)wd2;
		1904
		1905	REQ_SEND;
		1906	}
		1907
		1908	void
		1909	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1910	PPCODE:
		1911	{
		1912	eio_wd wd2 = 0;
		1913	dREQ;
		1914
		1915	req->type = EIO_RENAME;
		1916	req_set_path1 (req, oldpath);
		1917	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1918	req->int2 = flags;
1490	req->int3 = (long)wd2;	1919	req->int3 = (long)wd2;
1491		1920
1492	REQ_SEND;	1921	REQ_SEND;
1493	}	1922	}
1494		1923
…		…
1505		1934
1506	REQ_SEND;	1935	REQ_SEND;
1507	}	1936	}
1508		1937
1509	void	1938	void
1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1939	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1511	ALIAS:	1940	ALIAS:
1512	aio_mtouch = EIO_MTOUCH	1941	aio_mtouch = EIO_MTOUCH
1513	aio_msync = EIO_MSYNC	1942	aio_msync = EIO_MSYNC
1514	PPCODE:	1943	PPCODE:
1515	{	1944	{
1516	STRLEN svlen;	1945	STRLEN svlen;
1517	char *svptr = SvPVbyte (data, svlen);	1946	char *svptr = SvPVbyte (data, svlen);
1518	UV len = SvUV (length);	1947	UV len = SvUV (length);
		1948
		1949	if (flags < 0)
		1950	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1519		1951
1520	if (offset < 0)	1952	if (offset < 0)
1521	offset += svlen;	1953	offset += svlen;
1522		1954
1523	if (offset < 0 || offset > svlen)	1955	if (offset < 0 || offset > svlen)
…		…
1599	req->int2 = flags;	2031	req->int2 = flags;
1600	req->int3 = SvOK (count) ? SvIV (count) : -1;	2032	req->int3 = SvOK (count) ? SvIV (count) : -1;
1601	#endif	2033	#endif
1602		2034
1603	REQ_SEND;	2035	REQ_SEND;
		2036	}
		2037
		2038	void
		2039	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2040	PPCODE:
		2041	{
		2042	char *svptr = 0;
		2043
		2044	sv_clear_foreign (data);
		2045
		2046	if (length) /* known length, directly read into scalar */
		2047	{
		2048	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2049	svptr = sv_grow (data, length + 1);
		2050	else if (SvCUR (data) < length)
		2051	croak ("length outside of scalar, and cannot grow");
		2052	else
		2053	svptr = SvPVbyte_nolen (data);
		2054	}
		2055
		2056	{
		2057	dREQ;
		2058
		2059	req->type = EIO_SLURP;
		2060	req_set_path1 (req, pathname);
		2061	req->offs = offset;
		2062	req->size = length;
		2063	req->sv2 = SvREFCNT_inc (data);
		2064	req->ptr2 = svptr;
		2065
		2066	if (!SvREADONLY (data))
		2067	{
		2068	SvREADONLY_on (data);
		2069	req->flags |= FLAG_SV2_RO_OFF;
		2070	}
		2071
		2072	REQ_SEND;
		2073	}
1604	}	2074	}
1605		2075
1606	void	2076	void
1607	aio_busy (double delay, SV *callback = &PL_sv_undef)	2077	aio_busy (double delay, SV *callback = &PL_sv_undef)
1608	PPCODE:	2078	PPCODE:
…		…
1745	RETVAL	2215	RETVAL
1746		2216
1747	void	2217	void
1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2218	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749	PPCODE:	2219	PPCODE:
1750	sv_unmagic (scalar, MMAP_MAGIC);	2220	sv_clear_foreign (scalar);
1751	{	2221	{
1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2222	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2223	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754	if (addr == (void *)-1)	2224	if (addr == (void *)-1)
1755	XSRETURN_NO;	2225	XSRETURN_NO;
1756		2226
1757	sv_force_normal (scalar);	2227	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1758
1759	/* we store the length in mg_obj, as namlen is I32 :/ */
1760	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1761	->mg_obj = (SV *)length;
1762
1763	SvUPGRADE (scalar, SVt_PV); /* nop... */
1764		2228
1765	if (!(prot & PROT_WRITE))	2229	if (!(prot & PROT_WRITE))
1766	SvREADONLY_on (scalar);	2230	SvREADONLY_on (scalar);
1767		2231
1768	if (SvLEN (scalar))
1769	Safefree (SvPVX (scalar));
1770
1771	SvPVX (scalar) = (char *)addr;
1772	SvCUR_set (scalar, length);
1773	SvLEN_set (scalar, 0);
1774	SvPOK_only (scalar);
1775
1776	XSRETURN_YES;	2232	XSRETURN_YES;
1777	}	2233	}
1778		2234
1779	void	2235	void
1780	munmap (SV *scalar)	2236	munmap (SV *scalar)
1781	CODE:	2237	CODE:
1782	sv_unmagic (scalar, MMAP_MAGIC);	2238	sv_clear_foreign (scalar);
		2239
		2240	SV *
		2241	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2242	CODE:
		2243	{
		2244	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2245	void *new;
		2246
		2247	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2248	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2249
		2250	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2251
		2252	RETVAL = &PL_sv_no;
		2253
		2254	if (new != (void *)-1)
		2255	{
		2256	RETVAL = new == (void *)mg->mg_ptr
		2257	? newSVpvn ("0 but true", 10)
		2258	: &PL_sv_yes;
		2259
		2260	mg->mg_ptr = (char *)new;
		2261	mg->mg_obj = (SV *)new_length;
		2262
		2263	SvPVX (scalar) = mg->mg_ptr;
		2264	SvCUR_set (scalar, new_length);
		2265	}
		2266	}
		2267	OUTPUT:
		2268	RETVAL
1783		2269
1784	int	2270	int
1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2271	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786	ALIAS:	2272	ALIAS:
1787	mprotect = 1	2273	mprotect = 1
1788	CODE:	2274	CODE:
1789	{	2275	{
1790	STRLEN svlen;	2276	STRLEN svlen;
…		…
1811	}	2297	}
1812	OUTPUT:	2298	OUTPUT:
1813	RETVAL	2299	RETVAL
1814		2300
1815	int	2301	int
1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)	2302	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1817	CODE:	2303	CODE:
1818	{	2304	{
1819	STRLEN svlen;	2305	STRLEN svlen;
1820	void *addr = SvPVbyte (scalar, svlen);	2306	void *addr = SvPVbyte (scalar, svlen);
1821	size_t len = SvUV (length);	2307	size_t len = SvUV (length);
…		…
1836	#else	2322	#else
1837	RETVAL = EIO_ENOSYS ();	2323	RETVAL = EIO_ENOSYS ();
1838	#endif	2324	#endif
1839	}	2325	}
1840	OUTPUT:	2326	OUTPUT:
		2327	RETVAL
		2328
		2329	int
		2330	mlockall (int flags)
		2331	PROTOTYPE: $;
		2332	CODE:
		2333	RETVAL = eio_mlockall_sync (flags);
		2334	OUTPUT:
1841	RETVAL	2335	RETVAL
1842		2336
1843	int	2337	int
1844	munlockall ()	2338	munlockall ()
1845	CODE:	2339	CODE:
…		…
1847	munlockall ();	2341	munlockall ();
1848	#else	2342	#else
1849	RETVAL = EIO_ENOSYS ();	2343	RETVAL = EIO_ENOSYS ();
1850	#endif	2344	#endif
1851	OUTPUT:	2345	OUTPUT:
		2346	RETVAL
		2347
		2348	int
		2349	statx (SV8 *pathname, int flags, UV mask)
		2350	CODE:
		2351	{
		2352	/* undocumented, and might go away, and anyway, should use eio_statx */
		2353	SV *wdsv = 0;
		2354	SV *pathsv = 0;
		2355	eio_wd wd = EIO_CWD;
		2356	void *ptr;
		2357	int res;
		2358
		2359	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2360	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2361
		2362	SvREFCNT_dec (pathsv);
		2363	SvREFCNT_dec (wdsv);
		2364	}
		2365	OUTPUT:
		2366	RETVAL
		2367
		2368	U32
		2369	stx_mode ()
		2370	PROTOTYPE:
		2371	CODE:
		2372	#if HAVE_STATX
		2373	RETVAL = stx.stx_mode;
		2374	#else
		2375	XSRETURN_UNDEF;
		2376	#endif
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2381	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2382	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2383	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2384	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2385	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2386	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2387	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2388	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2389	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2390	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2391	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2392	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2393	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2394	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2395	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2396	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2397	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2398
		2399	U32
		2400	stx_mask ()
		2401	PROTOTYPE:
		2402	ALIAS:
		2403	stx_mask = STATX_OFFSET_mask
		2404	stx_blksize = STATX_OFFSET_blksize
		2405	stx_nlink = STATX_OFFSET_nlink
		2406	stx_uid = STATX_OFFSET_uid
		2407	stx_gid = STATX_OFFSET_gid
		2408	stx_rdev_major = STATX_OFFSET_rdev_major
		2409	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2410	stx_dev_major = STATX_OFFSET_dev_major
		2411	stx_dev_minor = STATX_OFFSET_dev_minor
		2412	CODE:
		2413	#if HAVE_STATX
		2414	RETVAL = *(__u32 *)((char *)&stx + ix);
		2415	#else
		2416	XSRETURN_UNDEF;
		2417	#endif
		2418	OUTPUT:
		2419	RETVAL
		2420
		2421	VAL64
		2422	stx_attributes ()
		2423	PROTOTYPE:
		2424	ALIAS:
		2425	stx_attributes = STATX_OFFSET_attributes
		2426	stx_ino = STATX_OFFSET_ino
		2427	stx_size = STATX_OFFSET_size
		2428	stx_blocks = STATX_OFFSET_blocks
		2429	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2430	CODE:
		2431	#if HAVE_STATX
		2432	RETVAL = *(__u64 *)((char *)&stx + ix);
		2433	#else
		2434	XSRETURN_UNDEF;
		2435	#endif
		2436	OUTPUT:
		2437	RETVAL
		2438
		2439	NV
		2440	stx_atime ()
		2441	PROTOTYPE:
		2442	ALIAS:
		2443	stx_atime = STATX_OFFSET_atime
		2444	stx_btime = STATX_OFFSET_btime
		2445	stx_ctime = STATX_OFFSET_ctime
		2446	stx_mtime = STATX_OFFSET_mtime
		2447	CODE:
		2448	#if HAVE_STATX
		2449	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2450	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2451	#else
		2452	XSRETURN_UNDEF;
		2453	#endif
		2454	OUTPUT:
		2455	RETVAL
		2456
		2457	VAL64
		2458	stx_atimesec ()
		2459	PROTOTYPE:
		2460	ALIAS:
		2461	stx_atimesec = STATX_OFFSET_atime
		2462	stx_btimesec = STATX_OFFSET_btime
		2463	stx_ctimesec = STATX_OFFSET_ctime
		2464	stx_mtimesec = STATX_OFFSET_mtime
		2465	CODE:
		2466	#if HAVE_STATX
		2467	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2468	RETVAL = ts->tv_sec;
		2469	#else
		2470	XSRETURN_UNDEF;
		2471	#endif
		2472	OUTPUT:
		2473	RETVAL
		2474
		2475	U32
		2476	stx_atimensec ()
		2477	PROTOTYPE:
		2478	ALIAS:
		2479	stx_atimensec = STATX_OFFSET_atime
		2480	stx_btimensec = STATX_OFFSET_btime
		2481	stx_ctimensec = STATX_OFFSET_ctime
		2482	stx_mtimensec = STATX_OFFSET_mtime
		2483	CODE:
		2484	#if HAVE_STATX
		2485	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2486	RETVAL = ts->tv_nsec;
		2487	#else
		2488	RETVAL = 0;
		2489	#endif
		2490	OUTPUT:
1852	RETVAL	2491	RETVAL
1853		2492
1854	int	2493	int
1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2494	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856	CODE:	2495	CODE:
…		…
1893	errno = ENOSYS;	2532	errno = ENOSYS;
1894	RETVAL = -1;	2533	RETVAL = -1;
1895	#endif	2534	#endif
1896	OUTPUT:	2535	OUTPUT:
1897	RETVAL	2536	RETVAL
		2537
		2538	void
		2539	pipe2 (int flags = 0)
		2540	PROTOTYPE: ;$
		2541	PPCODE:
		2542	{
		2543	int fd[2];
		2544	int res;
		2545
		2546	if (flags)
		2547	#if HAVE_PIPE2
		2548	res = pipe2 (fd, flags);
		2549	#else
		2550	res = (errno = ENOSYS, -1);
		2551	#endif
		2552	else
		2553	res = pipe (fd);
		2554
		2555	if (!res)
		2556	{
		2557	EXTEND (SP, 2);
		2558	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2559	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2560	}
		2561	}
		2562
		2563	void
		2564	eventfd (unsigned int initval = 0, int flags = 0)
		2565	PPCODE:
		2566	{
		2567	int fd;
		2568	#if HAVE_EVENTFD
		2569	fd = eventfd (initval, flags);
		2570	#else
		2571	fd = (errno = ENOSYS, -1);
		2572	#endif
		2573
		2574	XPUSHs (newmortalFH (fd, O_RDWR));
		2575	}
		2576
		2577	void
		2578	timerfd_create (int clockid, int flags = 0)
		2579	PPCODE:
		2580	{
		2581	int fd;
		2582	#if HAVE_TIMERFD
		2583	fd = timerfd_create (clockid, flags);
		2584	#else
		2585	fd = (errno = ENOSYS, -1);
		2586	#endif
		2587
		2588	XPUSHs (newmortalFH (fd, O_RDWR));
		2589	}
		2590
		2591	void
		2592	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2593	PPCODE:
		2594	{
		2595	int fd = s_fileno_croak (fh, 0);
		2596	#if HAVE_TIMERFD
		2597	int res;
		2598	struct itimerspec its, ots;
		2599
		2600	ts_set (&its.it_interval, interval);
		2601	ts_set (&its.it_value , value);
		2602	res = timerfd_settime (fd, flags, &its, &ots);
		2603
		2604	if (!res)
		2605	{
		2606	EXTEND (SP, 2);
		2607	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2608	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2609	}
		2610	#else
		2611	errno = ENOSYS;
		2612	#endif
		2613	}
		2614
		2615	void
		2616	timerfd_gettime (SV *fh)
		2617	PPCODE:
		2618	{
		2619	int fd = s_fileno_croak (fh, 0);
		2620	#if HAVE_TIMERFD
		2621	int res;
		2622	struct itimerspec ots;
		2623	res = timerfd_gettime (fd, &ots);
		2624
		2625	if (!res)
		2626	{
		2627	EXTEND (SP, 2);
		2628	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2629	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2630	}
		2631	#else
		2632	errno = ENOSYS;
		2633	#endif
		2634	}
		2635
		2636	void
		2637	memfd_create (SV8 *pathname, int flags = 0)
		2638	PPCODE:
		2639	{
		2640	int fd;
		2641	#if HAVE_MEMFD_CREATE
		2642	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2643	#else
		2644	fd = (errno = ENOSYS, -1);
		2645	#endif
		2646
		2647	XPUSHs (newmortalFH (fd, O_RDWR));
		2648	}
		2649
		2650	UV
		2651	get_fdlimit ()
		2652	CODE:
		2653	#if HAVE_RLIMITS
		2654	struct rlimit rl;
		2655	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2656	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2657	#endif
		2658	XSRETURN_UNDEF;
		2659	OUTPUT:
		2660	RETVAL
		2661
		2662	void
		2663	min_fdlimit (UV limit = 0x7fffffffU)
		2664	CODE:
		2665	{
		2666	#if HAVE_RLIMITS
		2667	struct rlimit rl;
		2668	rlim_t orig_rlim_max;
		2669	UV bit;
		2670
		2671	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2672	goto fail;
		2673
		2674	if (rl.rlim_cur == RLIM_INFINITY)
		2675	XSRETURN_YES;
		2676
		2677	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2678
		2679	if (rl.rlim_cur < limit)
		2680	{
		2681	rl.rlim_cur = limit;
		2682
		2683	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2684	rl.rlim_max = rl.rlim_cur;
		2685	}
		2686
		2687	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2688	XSRETURN_YES;
		2689
		2690	if (errno == EPERM)
		2691	{
		2692	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2693	/* our limit overflows a system-wide limit */
		2694	/* try an adaptive algorithm, but do not lower the hardlimit */
		2695	rl.rlim_max = 0;
		2696	for (bit = 0x40000000U; bit; bit >>= 1)
		2697	{
		2698	rl.rlim_max |= bit;
		2699	rl.rlim_cur = rl.rlim_max;
		2700
		2701	/* nevr decrease the hard limit */
		2702	if (rl.rlim_max < orig_rlim_max)
		2703	break;
		2704
		2705	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2706	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2707	}
		2708
		2709	/* now, raise the soft limit to the max permitted */
		2710	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2711	{
		2712	rl.rlim_cur = rl.rlim_max;
		2713	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2714	errno = EPERM;
		2715	}
		2716	}
		2717	#endif
		2718	fail:
		2719	XSRETURN_UNDEF;
		2720	}
1898		2721
1899	void _on_next_submit (SV *cb)	2722	void _on_next_submit (SV *cb)
1900	CODE:	2723	CODE:
1901	SvREFCNT_dec (on_next_submit);	2724	SvREFCNT_dec (on_next_submit);
1902	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2725	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;

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