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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.225 by root, Sat Dec 29 09:35:39 2012 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 2018 UTC

…		…
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		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	30	# include <sys/mman.h>
22	#endif	31	#endif
23		32
24	#if __linux__	33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	39	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	40	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	41	# include <linux/types.h>
28	# include <linux/fiemap.h>	42	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	43	# define HAVE_FIEMAP 1
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
101		115
102	/*****************************************************************************/	116	/*****************************************************************************/
103		117
		118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
		148
104	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	150	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	151	typedef int aio_wfd; /* write file descriptor */
107		152
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	153	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
114	STRLEN stroffset; \	159	STRLEN stroffset; \
115	SV *self;	160	SV *self;
116		161
117	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
118		163
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	164	#include "libeio/eio.h"
121		165
122	static int req_invoke (eio_req *req);	166	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	167	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	168	static void req_destroy (eio_req *grp);
…		…
140	# else	184	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	186	# endif
143	#endif	187	#endif
144		188
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	189	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	190	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	191	#endif
151	#ifndef major	192	#ifndef major
152	# define major(dev) ((dev) >> 8)	193	# define major(dev) ((dev) >> 8)
…		…
156	#endif	197	#endif
157		198
158	#if PAGESIZE <= 0	199	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	200	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	201	#endif
		202
		203	/*****************************************************************************/
		204
		205	#if !_POSIX_MAPPED_FILES
		206	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		207	# define munmap(addr,length) EIO_ENOSYS ()
		208	#endif
		209
		210	#if !_POSIX_MEMORY_PROTECTION
		211	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		212	#endif
		213
		214	#if !MREMAP_MAYMOVE
		215	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		216	#endif
		217
		218	#define FOREIGN_MAGIC PERL_MAGIC_ext
		219
		220	static int ecb_cold
		221	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	int old_errno = errno;
		224	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		225	errno = old_errno;
		226
		227	mg->mg_obj = 0; /* just in case */
		228
		229	SvREADONLY_off (sv);
		230
		231	if (SvPVX (sv) != mg->mg_ptr)
		232	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		233
		234	SvCUR_set (sv, 0);
		235	SvPVX (sv) = 0;
		236	SvOK_off (sv);
		237
		238	return 0;
		239	}
		240
		241	static MGVTBL mmap_vtbl = {
		242	0, 0, 0, 0, mmap_free
		243	};
		244
		245	static int ecb_cold
		246	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		247	{
		248	free (mg->mg_ptr);
		249	mg->mg_obj = 0; /* just in case */
		250
		251	SvREADONLY_off (sv);
		252
		253	if (SvPVX (sv) != mg->mg_ptr)
		254	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		255
		256	SvCUR_set (sv, 0);
		257	SvPVX (sv) = 0;
		258	SvOK_off (sv);
		259
		260	return 0;
		261	}
		262
		263	static MGVTBL sysfree_vtbl = {
		264	0, 0, 0, 0, sysfree_free
		265	};
		266
		267	/*****************************************************************************/
		268
		269	/* helper: set scalar to foreign ptr with custom free */
		270	static void
		271	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		272	{
		273	sv_force_normal (sv);
		274
		275	/* we store the length in mg_obj, as namlen is I32 :/ */
		276	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		277	->mg_obj = (SV *)length;
		278
		279	SvUPGRADE (sv, SVt_PV); /* nop... */
		280
		281	if (SvLEN (sv))
		282	Safefree (SvPVX (sv));
		283
		284	SvPVX (sv) = (char *)addr;
		285	SvCUR_set (sv, length);
		286	SvLEN_set (sv, 0);
		287	SvPOK_only (sv);
		288	}
		289
		290	static void
		291	sv_clear_foreign (SV *sv)
		292	{
		293	/* todo: iterate over magic and only free ours, but of course */
		294	/* the perl5porters will call that (correct) behaviour buggy */
		295	sv_unmagic (sv, FOREIGN_MAGIC);
		296	}
		297
		298	/*****************************************************************************/
		299
		300	/* defines all sorts of constants to 0 unless they are already defined */
		301	/* also provides const_iv_ and const_niv_ macros for them */
		302	#include "def0.h"
161		303
162	/*****************************************************************************/	304	/*****************************************************************************/
163		305
164	static void	306	static void
165	fiemap (eio_req *req)	307	fiemap (eio_req *req)
…		…
198	|| !fiemap->fm_mapped_extents /* no more extents */	340	|| !fiemap->fm_mapped_extents /* no more extents */
199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)	341	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200	goto done;	342	goto done;
201		343
202	/* else we have to loop -	344	/* else we have to loop -
203	* it would be tempting (atcually I tried that first) to just query the	345	* it would be tempting (actually I tried that first) to just query the
204	* number of extents needed, but linux often feels like not returning all	346	* number of extents needed, but linux often feels like not returning all
205	* extents, without telling us it left any out. this complicates	347	* extents, without telling us it left any out. this complicates
206	* this quite a bit.	348	* this quite a bit.
207	*/	349	*/
208		350
…		…
221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);	363	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
222		364
223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)	365	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
224	return;	366	return;
225		367
		368	if (!incmap->fm_mapped_extents)
		369	goto done;
		370
226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;	371	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	372	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228	errno = ENOMEM;	373	errno = ENOMEM;
229	if (!fiemap)	374	if (!fiemap)
230	return;	375	return;
…		…
301	}	446	}
302		447
303	static SV *	448	static SV *
304	newSVaio_wd (aio_wd wd)	449	newSVaio_wd (aio_wd wd)
305	{	450	{
306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	451	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
307	}	452	}
308		453
309	static aio_req	454	static aio_req
310	SvAIO_REQ (SV *sv)	455	SvAIO_REQ (SV *sv)
311	{	456	{
…		…
330	|| SvTYPE (SvRV (sv)) != SVt_PVMG	475	|| SvTYPE (SvRV (sv)) != SVt_PVMG
331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	476	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	477	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333		478
334	return (aio_wd)(long)SvIVX (SvRV (sv));	479	return (aio_wd)(long)SvIVX (SvRV (sv));
		480	}
		481
		482	static SV *
		483	newmortalFH (int fd, int flags)
		484	{
		485	if (fd < 0)
		486	return &PL_sv_undef;
		487
		488	GV *gv = (GV *)sv_newmortal ();
		489	char sym[64];
		490	int symlen;
		491
		492	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		493	gv_init (gv, aio_stash, sym, symlen, 0);
		494
		495	symlen = snprintf (
		496	sym,
		497	sizeof (sym),
		498	"%s&=%d",
		499	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		500	fd
		501	);
		502
		503	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		504	? (SV *)gv : &PL_sv_undef;
335	}	505	}
336		506
337	static void	507	static void
338	aio_grp_feed (aio_req grp)	508	aio_grp_feed (aio_req grp)
339	{	509	{
…		…
467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	637	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
468	}	638	}
469	break;	639	break;
470		640
471	case EIO_OPEN:	641	case EIO_OPEN:
472	{	642	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
473	/* convert fd to fh */
474	SV *fh = &PL_sv_undef;
475
476	if (req->result >= 0)
477	{
478	GV *gv = (GV *)sv_newmortal ();
479	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
480	char sym [64];
481	int symlen;
482
483	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
484	gv_init (gv, aio_stash, sym, symlen, 0);
485
486	symlen = snprintf (
487	sym,
488	sizeof (sym),
489	"%s&=%d",
490	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
491	(int)req->result
492	);
493
494	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
495	fh = (SV *)gv;
496	}
497
498	PUSHs (fh);
499	}
500	break;	643	break;
501		644
502	case EIO_STATVFS:	645	case EIO_STATVFS:
503	case EIO_FSTATVFS:	646	case EIO_FSTATVFS:
504	{	647	{
…		…
584	SvSETMAGIC (req->sv2);	727	SvSETMAGIC (req->sv2);
585	PUSHs (sv_result);	728	PUSHs (sv_result);
586	}	729	}
587	break;	730	break;
588		731
		732	case EIO_SLURP:
		733	{
		734	if (req->result >= 0)
		735	{
		736	/* if length was originally not known, we steal the malloc'ed memory */
		737	if (req->flags & EIO_FLAG_PTR2_FREE)
		738	{
		739	req->flags &= ~EIO_FLAG_PTR2_FREE;
		740	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		741	}
		742	else
		743	{
		744	SvCUR_set (req->sv2, req->result);
		745	*SvEND (req->sv2) = 0;
		746	SvPOK_only (req->sv2);
		747	}
		748
		749	SvSETMAGIC (req->sv2);
		750	}
		751
		752	PUSHs (sv_result);
		753	}
		754	break;
		755
589	case EIO_CUSTOM:	756	case EIO_CUSTOM:
590	if (req->feed == fiemap)	757	if (req->feed == fiemap)
591	{	758	{
592	#if HAVE_FIEMAP	759	#if HAVE_FIEMAP
593	if (!req->result)	760	if (!req->result)
…		…
698	{	865	{
699	while (eio_nreqs ())	866	while (eio_nreqs ())
700	{	867	{
701	int size;	868	int size;
702		869
703	X_LOCK (reslock);	870	X_LOCK (EIO_POOL->reslock);
704	size = res_queue.size;	871	size = EIO_POOL->res_queue.size;
705	X_UNLOCK (reslock);	872	X_UNLOCK (EIO_POOL->reslock);
706		873
707	if (size)	874	if (size)
708	return;	875	return;
709		876
710	etp_maybe_start_thread ();	877	etp_maybe_start_thread (EIO_POOL);
711		878
712	s_epipe_wait (&respipe);	879	s_epipe_wait (&respipe);
713	}	880	}
714	}	881	}
715		882
…		…
736	create_respipe ();	903	create_respipe ();
737		904
738	if (eio_init (want_poll, done_poll) < 0)	905	if (eio_init (want_poll, done_poll) < 0)
739	croak ("IO::AIO: unable to initialise eio library");	906	croak ("IO::AIO: unable to initialise eio library");
740	}	907	}
741
742	/*****************************************************************************/
743
744	#if !_POSIX_MAPPED_FILES
745	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
746	# define munmap(addr,length) EIO_ENOSYS ()
747	#endif
748
749	#if !_POSIX_MEMORY_PROTECTION
750	# define mprotect(addr,len,prot) EIO_ENOSYS ()
751	# define PROT_NONE 0
752	# define PROT_WRITE 0
753	# define MAP_PRIVATE 0
754	# define MAP_SHARED 0
755	# define MAP_FIXED 0
756	#endif
757
758	#define MMAP_MAGIC PERL_MAGIC_ext
759
760	static int ecb_cold
761	mmap_free (pTHX_ SV *sv, MAGIC *mg)
762	{
763	int old_errno = errno;
764	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
765	errno = old_errno;
766
767	mg->mg_obj = 0; /* just in case */
768
769	SvREADONLY_off (sv);
770
771	if (SvPVX (sv) != mg->mg_ptr)
772	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
773
774	SvCUR_set (sv, 0);
775	SvPVX (sv) = 0;
776	SvOK_off (sv);
777
778	return 0;
779	}
780
781	static MGVTBL mmap_vtbl = {
782	0, 0, 0, 0, mmap_free
783	};
784		908
785	/*****************************************************************************/	909	/*****************************************************************************/
786		910
787	static SV *	911	static SV *
788	get_cb (SV *cb_sv)	912	get_cb (SV *cb_sv)
…		…
884	req_set_path1 (req, fh_or_path);	1008	req_set_path1 (req, fh_or_path);
885	break;	1009	break;
886	}	1010	}
887	}	1011	}
888		1012
		1013	/*****************************************************************************/
		1014
		1015	static void
		1016	ts_set (struct timespec *ts, NV value)
		1017	{
		1018	ts->tv_sec = value;
		1019	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1020	}
		1021
		1022	static NV
		1023	ts_get (const struct timespec *ts)
		1024	{
		1025	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1026	}
		1027
		1028	/*****************************************************************************/
		1029
889	XS(boot_IO__AIO) ecb_cold;	1030	XS(boot_IO__AIO) ecb_cold;
890		1031
891	MODULE = IO::AIO PACKAGE = IO::AIO	1032	MODULE = IO::AIO PACKAGE = IO::AIO
892		1033
893	PROTOTYPES: ENABLE	1034	PROTOTYPES: ENABLE
…		…
900	} *civ, const_iv[] = {	1041	} *civ, const_iv[] = {
901	# define const_niv(name, value) { # name, (IV) value },	1042	# define const_niv(name, value) { # name, (IV) value },
902	# define const_iv(name) { # name, (IV) name },	1043	# define const_iv(name) { # name, (IV) name },
903	# define const_eio(name) { # name, (IV) EIO_ ## name },	1044	# define const_eio(name) { # name, (IV) EIO_ ## name },
904		1045
905	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1046	/* you have to re-run ./gendef0 after adding/removing any constants here */
906		1047	/* the first block can be undef if missing */
907	const_iv (ENOSYS)	1048	const_iv (ENOSYS)
908	const_iv (EXDEV)	1049	const_iv (EXDEV)
909	const_iv (EBADR)	1050	const_iv (EBADR)
		1051
		1052	/* for lseek */
		1053	const_iv (SEEK_DATA)
		1054	const_iv (SEEK_HOLE)
		1055
		1056	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1057	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1058	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1059	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1060	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1061	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1062
		1063	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1064	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1065	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1066	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1067	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1068
		1069	/* the second block will be 0 when missing */
		1070	const_iv (O_ACCMODE)
910		1071
911	const_iv (O_RDONLY)	1072	const_iv (O_RDONLY)
912	const_iv (O_WRONLY)	1073	const_iv (O_WRONLY)
913	const_iv (O_RDWR)	1074	const_iv (O_RDWR)
914	const_iv (O_CREAT)	1075	const_iv (O_CREAT)
…		…
928	const_iv (O_SEARCH)	1089	const_iv (O_SEARCH)
929	const_iv (O_DIRECTORY)	1090	const_iv (O_DIRECTORY)
930	const_iv (O_DSYNC)	1091	const_iv (O_DSYNC)
931	const_iv (O_RSYNC)	1092	const_iv (O_RSYNC)
932	const_iv (O_SYNC)	1093	const_iv (O_SYNC)
		1094	const_iv (O_PATH)
		1095	const_iv (O_TMPFILE)
933	const_iv (O_TTY_INIT)	1096	const_iv (O_TTY_INIT)
934		1097
935	const_iv (S_IFIFO)	1098	const_iv (S_IFIFO)
936	const_iv (S_IFCHR)	1099	const_iv (S_IFCHR)
937	const_iv (S_IFBLK)	1100	const_iv (S_IFBLK)
…		…
939	const_iv (S_IFREG)	1102	const_iv (S_IFREG)
940	const_iv (S_IFDIR)	1103	const_iv (S_IFDIR)
941	const_iv (S_IFWHT)	1104	const_iv (S_IFWHT)
942	const_iv (S_IFSOCK)	1105	const_iv (S_IFSOCK)
943	const_iv (S_IFMT)	1106	const_iv (S_IFMT)
944
945	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
946	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
947	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
948	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
949	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
950	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
951
952	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
953	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
954	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
955	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
956	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
957		1107
958	const_iv (ST_RDONLY)	1108	const_iv (ST_RDONLY)
959	const_iv (ST_NOSUID)	1109	const_iv (ST_NOSUID)
960	const_iv (ST_NODEV)	1110	const_iv (ST_NODEV)
961	const_iv (ST_NOEXEC)	1111	const_iv (ST_NOEXEC)
…		…
971	const_iv (PROT_NONE)	1121	const_iv (PROT_NONE)
972	const_iv (PROT_EXEC)	1122	const_iv (PROT_EXEC)
973	const_iv (PROT_READ)	1123	const_iv (PROT_READ)
974	const_iv (PROT_WRITE)	1124	const_iv (PROT_WRITE)
975		1125
976	/*const_iv (MAP_FIXED)*/
977	const_iv (MAP_PRIVATE)	1126	const_iv (MAP_PRIVATE)
978	const_iv (MAP_SHARED)	1127	const_iv (MAP_SHARED)
		1128	const_iv (MAP_FIXED)
979	const_iv (MAP_ANONYMOUS)	1129	const_iv (MAP_ANONYMOUS)
980		1130
981	/* linuxish */	1131	/* linuxish */
982	const_iv (MAP_HUGETLB)
983	const_iv (MAP_LOCKED)	1132	const_iv (MAP_LOCKED)
984	const_iv (MAP_NORESERVE)	1133	const_iv (MAP_NORESERVE)
985	const_iv (MAP_POPULATE)	1134	const_iv (MAP_POPULATE)
986	const_iv (MAP_NONBLOCK)	1135	const_iv (MAP_NONBLOCK)
		1136	const_iv (MAP_GROWSDOWN)
		1137	const_iv (MAP_32BIT)
		1138	const_iv (MAP_HUGETLB)
		1139	const_iv (MAP_STACK)
		1140
		1141	const_iv (MREMAP_MAYMOVE)
		1142	const_iv (MREMAP_FIXED)
		1143
		1144	const_iv (F_DUPFD_CLOEXEC)
		1145
		1146	const_iv (MSG_CMSG_CLOEXEC)
		1147	const_iv (SOCK_CLOEXEC)
		1148
		1149	const_iv (F_OFD_GETLK)
		1150	const_iv (F_OFD_SETLK)
		1151	const_iv (F_OFD_GETLKW)
		1152
		1153	const_iv (FIFREEZE)
		1154	const_iv (FITHAW)
		1155	const_iv (FITRIM)
		1156	const_iv (FICLONE)
		1157	const_iv (FICLONERANGE)
		1158	const_iv (FIDEDUPERANGE)
		1159
		1160	const_iv (FS_IOC_GETFLAGS)
		1161	const_iv (FS_IOC_SETFLAGS)
		1162	const_iv (FS_IOC_GETVERSION)
		1163	const_iv (FS_IOC_SETVERSION)
		1164	const_iv (FS_IOC_FIEMAP)
		1165	const_iv (FS_IOC_FSGETXATTR)
		1166	const_iv (FS_IOC_FSSETXATTR)
		1167	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1168	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1169	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1170
		1171	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1172
		1173	const_iv (FS_SECRM_FL)
		1174	const_iv (FS_UNRM_FL)
		1175	const_iv (FS_COMPR_FL)
		1176	const_iv (FS_SYNC_FL)
		1177	const_iv (FS_IMMUTABLE_FL)
		1178	const_iv (FS_APPEND_FL)
		1179	const_iv (FS_NODUMP_FL)
		1180	const_iv (FS_NOATIME_FL)
		1181	const_iv (FS_DIRTY_FL)
		1182	const_iv (FS_COMPRBLK_FL)
		1183	const_iv (FS_NOCOMP_FL)
		1184	const_iv (FS_ENCRYPT_FL)
		1185	const_iv (FS_BTREE_FL)
		1186	const_iv (FS_INDEX_FL)
		1187	const_iv (FS_JOURNAL_DATA_FL)
		1188	const_iv (FS_NOTAIL_FL)
		1189	const_iv (FS_DIRSYNC_FL)
		1190	const_iv (FS_TOPDIR_FL)
		1191	const_iv (FS_FL_USER_MODIFIABLE)
		1192
		1193	const_iv (FS_XFLAG_REALTIME)
		1194	const_iv (FS_XFLAG_PREALLOC)
		1195	const_iv (FS_XFLAG_IMMUTABLE)
		1196	const_iv (FS_XFLAG_APPEND)
		1197	const_iv (FS_XFLAG_SYNC)
		1198	const_iv (FS_XFLAG_NOATIME)
		1199	const_iv (FS_XFLAG_NODUMP)
		1200	const_iv (FS_XFLAG_RTINHERIT)
		1201	const_iv (FS_XFLAG_PROJINHERIT)
		1202	const_iv (FS_XFLAG_NOSYMLINKS)
		1203	const_iv (FS_XFLAG_EXTSIZE)
		1204	const_iv (FS_XFLAG_EXTSZINHERIT)
		1205	const_iv (FS_XFLAG_NODEFRAG)
		1206	const_iv (FS_XFLAG_FILESTREAM)
		1207	const_iv (FS_XFLAG_DAX)
		1208	const_iv (FS_XFLAG_HASATTR)
987		1209
988	const_iv (FIEMAP_FLAG_SYNC)	1210	const_iv (FIEMAP_FLAG_SYNC)
989	const_iv (FIEMAP_FLAG_XATTR)	1211	const_iv (FIEMAP_FLAG_XATTR)
990	const_iv (FIEMAP_FLAGS_COMPAT)	1212	const_iv (FIEMAP_FLAGS_COMPAT)
991	const_iv (FIEMAP_EXTENT_LAST)	1213	const_iv (FIEMAP_EXTENT_LAST)
…		…
1003	const_iv (SPLICE_F_MOVE)	1225	const_iv (SPLICE_F_MOVE)
1004	const_iv (SPLICE_F_NONBLOCK)	1226	const_iv (SPLICE_F_NONBLOCK)
1005	const_iv (SPLICE_F_MORE)	1227	const_iv (SPLICE_F_MORE)
1006	const_iv (SPLICE_F_GIFT)	1228	const_iv (SPLICE_F_GIFT)
1007		1229
1008	const_iv (SEEK_DATA)	1230	const_iv (EFD_CLOEXEC)
		1231	const_iv (EFD_NONBLOCK)
1009	const_iv (SEEK_HOLE)	1232	const_iv (EFD_SEMAPHORE)
1010		1233
1011	/* libeio constants */	1234	const_iv (CLOCK_REALTIME)
		1235	const_iv (CLOCK_MONOTONIC)
		1236	const_iv (CLOCK_BOOTTIME)
		1237	const_iv (CLOCK_REALTIME_ALARM)
		1238	const_iv (CLOCK_BOOTTIME_ALARM)
		1239
		1240	const_iv (TFD_NONBLOCK)
		1241	const_iv (TFD_CLOEXEC)
		1242
		1243	const_iv (TFD_TIMER_ABSTIME)
		1244	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1245
		1246	/* these are libeio constants, and are independent of gendef0 */
1012	const_eio (SEEK_SET)	1247	const_eio (SEEK_SET)
1013	const_eio (SEEK_CUR)	1248	const_eio (SEEK_CUR)
1014	const_eio (SEEK_END)	1249	const_eio (SEEK_END)
1015		1250
1016	const_eio (MCL_FUTURE)	1251	const_eio (MCL_FUTURE)
…		…
1026	const_eio (SYNC_FILE_RANGE_WRITE)	1261	const_eio (SYNC_FILE_RANGE_WRITE)
1027	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1262	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1028		1263
1029	const_eio (FALLOC_FL_KEEP_SIZE)	1264	const_eio (FALLOC_FL_KEEP_SIZE)
1030	const_eio (FALLOC_FL_PUNCH_HOLE)	1265	const_eio (FALLOC_FL_PUNCH_HOLE)
		1266	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1267	const_eio (FALLOC_FL_ZERO_RANGE)
		1268	const_eio (FALLOC_FL_INSERT_RANGE)
		1269	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1270
		1271	const_eio (RENAME_NOREPLACE)
		1272	const_eio (RENAME_EXCHANGE)
		1273	const_eio (RENAME_WHITEOUT)
1031		1274
1032	const_eio (READDIR_DENTS)	1275	const_eio (READDIR_DENTS)
1033	const_eio (READDIR_DIRS_FIRST)	1276	const_eio (READDIR_DIRS_FIRST)
1034	const_eio (READDIR_STAT_ORDER)	1277	const_eio (READDIR_STAT_ORDER)
1035	const_eio (READDIR_FOUND_UNKNOWN)	1278	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1103	PROTOTYPE: $	1346	PROTOTYPE: $
1104	CODE:	1347	CODE:
1105	max_outstanding = maxreqs;	1348	max_outstanding = maxreqs;
1106		1349
1107	void	1350	void
1108	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1351	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1109	PPCODE:	1352	PPCODE:
1110	{	1353	{
1111	dREQ;	1354	dREQ;
1112		1355
1113	req->type = EIO_WD_OPEN;	1356	req->type = EIO_WD_OPEN;
…		…
1115		1358
1116	REQ_SEND;	1359	REQ_SEND;
1117	}	1360	}
1118		1361
1119	void	1362	void
1120	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1363	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1121	PPCODE:	1364	PPCODE:
1122	{	1365	{
1123	dREQ;	1366	dREQ;
1124		1367
1125	req->type = EIO_OPEN;	1368	req->type = EIO_OPEN;
…		…
1129		1372
1130	REQ_SEND;	1373	REQ_SEND;
1131	}	1374	}
1132		1375
1133	void	1376	void
1134	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1377	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1135	ALIAS:	1378	ALIAS:
1136	aio_fsync = EIO_FSYNC	1379	aio_fsync = EIO_FSYNC
1137	aio_fdatasync = EIO_FDATASYNC	1380	aio_fdatasync = EIO_FDATASYNC
1138	aio_syncfs = EIO_SYNCFS	1381	aio_syncfs = EIO_SYNCFS
1139	PPCODE:	1382	PPCODE:
…		…
1147		1390
1148	REQ_SEND;	1391	REQ_SEND;
1149	}	1392	}
1150		1393
1151	void	1394	void
1152	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1395	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1153	PPCODE:	1396	PPCODE:
1154	{	1397	{
1155	int fd = s_fileno_croak (fh, 0);	1398	int fd = s_fileno_croak (fh, 0);
1156	dREQ;	1399	dREQ;
1157		1400
…		…
1164		1407
1165	REQ_SEND;	1408	REQ_SEND;
1166	}	1409	}
1167		1410
1168	void	1411	void
1169	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1412	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1170	PPCODE:	1413	PPCODE:
1171	{	1414	{
1172	int fd = s_fileno_croak (fh, 0);	1415	int fd = s_fileno_croak (fh, 0);
1173	dREQ;	1416	dREQ;
1174		1417
…		…
1181		1424
1182	REQ_SEND;	1425	REQ_SEND;
1183	}	1426	}
1184		1427
1185	void	1428	void
1186	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1429	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1187	PPCODE:	1430	PPCODE:
1188	{	1431	{
1189	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1432	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1190	int fd = s_fileno_croak (fh, 0);	1433	int fd = s_fileno_croak (fh, 0);
1191	dREQ;	1434	dREQ;
…		…
1215		1458
1216	REQ_SEND;	1459	REQ_SEND;
1217	}	1460	}
1218		1461
1219	void	1462	void
1220	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1463	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1221	PPCODE:	1464	PPCODE:
1222	{	1465	{
1223	int fd = s_fileno_croak (fh, 0);	1466	int fd = s_fileno_croak (fh, 0);
1224	dREQ;	1467	dREQ;
1225		1468
…		…
1231		1474
1232	REQ_SEND;	1475	REQ_SEND;
1233	}	1476	}
1234		1477
1235	void	1478	void
1236	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1237	ALIAS:	1480	ALIAS:
1238	aio_read = EIO_READ	1481	aio_read = EIO_READ
1239	aio_write = EIO_WRITE	1482	aio_write = EIO_WRITE
1240	PPCODE:	1483	PPCODE:
1241	{	1484	{
…		…
1257	len = svlen - dataoffset;	1500	len = svlen - dataoffset;
1258	}	1501	}
1259	else	1502	else
1260	{	1503	{
1261	/* read: check type and grow scalar as necessary */	1504	/* read: check type and grow scalar as necessary */
1262	SvUPGRADE (data, SVt_PV);
1263	if (SvLEN (data) >= SvCUR (data))	1505	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1264	svptr = SvGROW (data, len + dataoffset + 1);	1506	svptr = sv_grow (data, len + dataoffset + 1);
1265	else if (SvCUR (data) < len + dataoffset)	1507	else if (SvCUR (data) < len + dataoffset)
1266	croak ("length + dataoffset outside of scalar, and cannot grow");	1508	croak ("length + dataoffset outside of scalar, and cannot grow");
1267	}	1509	}
1268		1510
1269	{	1511	{
…		…
1287	REQ_SEND;	1529	REQ_SEND;
1288	}	1530	}
1289	}	1531	}
1290		1532
1291	void	1533	void
		1534	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1535	ALIAS:
		1536	aio_ioctl = EIO_IOCTL
		1537	aio_fcntl = EIO_FCNTL
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	char *svptr;
		1542
		1543	if (SvPOK (arg) || !SvNIOK (arg))
		1544	{
		1545	STRLEN svlen;
		1546	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1547	#ifdef IOCPARM_LEN
		1548	STRLEN need = IOCPARM_LEN (request);
		1549	#else
		1550	STRLEN need = 256;
		1551	#endif
		1552
		1553	if (svlen < need)
		1554	svptr = SvGROW (arg, need);
		1555	}
		1556	else
		1557	svptr = (char *)SvIV (arg);
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = ix;
		1563	req->sv1 = newSVsv (fh);
		1564	req->int1 = fd;
		1565	req->int2 = (long)request;
		1566	req->sv2 = SvREFCNT_inc (arg);
		1567	req->ptr2 = svptr;
		1568
		1569	REQ_SEND;
		1570	}
		1571	}
		1572
		1573	void
1292	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1574	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1293	ALIAS:	1575	ALIAS:
1294	aio_readlink = EIO_READLINK	1576	aio_readlink = EIO_READLINK
1295	aio_realpath = EIO_REALPATH	1577	aio_realpath = EIO_REALPATH
1296	PPCODE:	1578	PPCODE:
1297	{	1579	{
…		…
1302		1584
1303	REQ_SEND;	1585	REQ_SEND;
1304	}	1586	}
1305		1587
1306	void	1588	void
1307	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1589	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1308	PPCODE:	1590	PPCODE:
1309	{	1591	{
1310	int ifd = s_fileno_croak (in_fh , 0);	1592	int ifd = s_fileno_croak (in_fh , 0);
1311	int ofd = s_fileno_croak (out_fh, 1);	1593	int ofd = s_fileno_croak (out_fh, 1);
1312	dREQ;	1594	dREQ;
…		…
1321		1603
1322	REQ_SEND;	1604	REQ_SEND;
1323	}	1605	}
1324		1606
1325	void	1607	void
1326	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1608	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1327	PPCODE:	1609	PPCODE:
1328	{	1610	{
1329	int fd = s_fileno_croak (fh, 0);	1611	int fd = s_fileno_croak (fh, 0);
1330	dREQ;	1612	dREQ;
1331		1613
…		…
1337		1619
1338	REQ_SEND;	1620	REQ_SEND;
1339	}	1621	}
1340		1622
1341	void	1623	void
1342	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1624	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1343	ALIAS:	1625	ALIAS:
1344	aio_stat = EIO_STAT	1626	aio_stat = EIO_STAT
1345	aio_lstat = EIO_LSTAT	1627	aio_lstat = EIO_LSTAT
1346	aio_statvfs = EIO_STATVFS	1628	aio_statvfs = EIO_STATVFS
1347	PPCODE:	1629	PPCODE:
…		…
1350		1632
1351	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1633	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1352		1634
1353	REQ_SEND;	1635	REQ_SEND;
1354	}	1636	}
		1637
		1638	void
		1639	st_xtime ()
		1640	ALIAS:
		1641	st_atime = 1
		1642	st_mtime = 2
		1643	st_ctime = 4
		1644	st_xtime = 7
		1645	PPCODE:
		1646	EXTEND (SP, 3);
		1647	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1648	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1649	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1650
		1651	void
		1652	st_xtimensec ()
		1653	ALIAS:
		1654	st_atimensec = 1
		1655	st_mtimensec = 2
		1656	st_ctimensec = 4
		1657	st_xtimensec = 7
		1658	PPCODE:
		1659	EXTEND (SP, 3);
		1660	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1661	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1662	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1355		1663
1356	UV	1664	UV
1357	major (UV dev)	1665	major (UV dev)
1358	ALIAS:	1666	ALIAS:
1359	minor = 1	1667	minor = 1
1360	CODE:	1668	CODE:
1361	RETVAL = ix ? major (dev) : minor (dev);	1669	RETVAL = ix ? minor (dev) : major (dev);
1362	OUTPUT:	1670	OUTPUT:
1363	RETVAL	1671	RETVAL
1364		1672
1365	UV	1673	UV
1366	makedev (UV maj, UV min)	1674	makedev (UV maj, UV min)
…		…
1368	RETVAL = makedev (maj, min);	1676	RETVAL = makedev (maj, min);
1369	OUTPUT:	1677	OUTPUT:
1370	RETVAL	1678	RETVAL
1371		1679
1372	void	1680	void
1373	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1681	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1374	PPCODE:	1682	PPCODE:
1375	{	1683	{
1376	dREQ;	1684	dREQ;
1377		1685
1378	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1686	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1381		1689
1382	REQ_SEND;	1690	REQ_SEND;
1383	}	1691	}
1384		1692
1385	void	1693	void
1386	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1694	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1387	PPCODE:	1695	PPCODE:
1388	{	1696	{
1389	dREQ;	1697	dREQ;
1390		1698
1391	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1699	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1393		1701
1394	REQ_SEND;	1702	REQ_SEND;
1395	}	1703	}
1396		1704
1397	void	1705	void
1398	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1706	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1399	PPCODE:	1707	PPCODE:
1400	{	1708	{
1401	dREQ;	1709	dREQ;
1402		1710
1403	req->int2 = mode;	1711	req->int2 = mode;
…		…
1405		1713
1406	REQ_SEND;	1714	REQ_SEND;
1407	}	1715	}
1408		1716
1409	void	1717	void
1410	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1718	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1411	PPCODE:	1719	PPCODE:
1412	{	1720	{
1413	dREQ;	1721	dREQ;
1414		1722
1415	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1723	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1418		1726
1419	REQ_SEND;	1727	REQ_SEND;
1420	}	1728	}
1421		1729
1422	void	1730	void
1423	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1731	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1424	PPCODE:	1732	PPCODE:
1425	{	1733	{
1426	dREQ;	1734	dREQ;
1427		1735
1428	req->type = EIO_READDIR;	1736	req->type = EIO_READDIR;
…		…
1435		1743
1436	REQ_SEND;	1744	REQ_SEND;
1437	}	1745	}
1438		1746
1439	void	1747	void
1440	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1748	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1441	PPCODE:	1749	PPCODE:
1442	{	1750	{
1443	dREQ;	1751	dREQ;
1444		1752
1445	req->type = EIO_MKDIR;	1753	req->type = EIO_MKDIR;
…		…
1448		1756
1449	REQ_SEND;	1757	REQ_SEND;
1450	}	1758	}
1451		1759
1452	void	1760	void
1453	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1761	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1454	ALIAS:	1762	ALIAS:
1455	aio_unlink = EIO_UNLINK	1763	aio_unlink = EIO_UNLINK
1456	aio_rmdir = EIO_RMDIR	1764	aio_rmdir = EIO_RMDIR
1457	aio_readdir = EIO_READDIR	1765	aio_readdir = EIO_READDIR
1458	PPCODE:	1766	PPCODE:
…		…
1464		1772
1465	REQ_SEND;	1773	REQ_SEND;
1466	}	1774	}
1467		1775
1468	void	1776	void
1469	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1470	ALIAS:	1778	ALIAS:
1471	aio_link = EIO_LINK	1779	aio_link = EIO_LINK
1472	aio_symlink = EIO_SYMLINK	1780	aio_symlink = EIO_SYMLINK
1473	aio_rename = EIO_RENAME	1781	aio_rename = EIO_RENAME
1474	PPCODE:	1782	PPCODE:
…		…
1483		1791
1484	REQ_SEND;	1792	REQ_SEND;
1485	}	1793	}
1486		1794
1487	void	1795	void
		1796	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	eio_wd wd2 = 0;
		1800	dREQ;
		1801
		1802	req->type = EIO_RENAME;
		1803	req_set_path1 (req, oldpath);
		1804	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1805	req->int2 = flags;
		1806	req->int3 = (long)wd2;
		1807
		1808	REQ_SEND;
		1809	}
		1810
		1811	void
1488	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1489	PPCODE:	1813	PPCODE:
1490	{	1814	{
1491	dREQ;	1815	dREQ;
1492		1816
1493	req->type = EIO_MKNOD;	1817	req->type = EIO_MKNOD;
…		…
1497		1821
1498	REQ_SEND;	1822	REQ_SEND;
1499	}	1823	}
1500		1824
1501	void	1825	void
1502	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1826	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1503	ALIAS:	1827	ALIAS:
1504	aio_mtouch = EIO_MTOUCH	1828	aio_mtouch = EIO_MTOUCH
1505	aio_msync = EIO_MSYNC	1829	aio_msync = EIO_MSYNC
1506	PPCODE:	1830	PPCODE:
1507	{	1831	{
1508	STRLEN svlen;	1832	STRLEN svlen;
1509	char *svptr = SvPVbyte (data, svlen);	1833	char *svptr = SvPVbyte (data, svlen);
1510	UV len = SvUV (length);	1834	UV len = SvUV (length);
		1835
		1836	if (flags < 0)
		1837	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1511		1838
1512	if (offset < 0)	1839	if (offset < 0)
1513	offset += svlen;	1840	offset += svlen;
1514		1841
1515	if (offset < 0 || offset > svlen)	1842	if (offset < 0 || offset > svlen)
…		…
1530	REQ_SEND;	1857	REQ_SEND;
1531	}	1858	}
1532	}	1859	}
1533		1860
1534	void	1861	void
1535	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1862	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1536	PPCODE:	1863	PPCODE:
1537	{	1864	{
1538	STRLEN svlen;	1865	STRLEN svlen;
1539	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1540	UV len = SvUV (length);	1867	UV len = SvUV (length);
…		…
1559	REQ_SEND;	1886	REQ_SEND;
1560	}	1887	}
1561	}	1888	}
1562		1889
1563	void	1890	void
1564	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1891	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1565	PPCODE:	1892	PPCODE:
1566	{	1893	{
1567	dREQ;	1894	dREQ;
1568		1895
1569	req->type = EIO_MLOCKALL;	1896	req->type = EIO_MLOCKALL;
…		…
1571		1898
1572	REQ_SEND;	1899	REQ_SEND;
1573	}	1900	}
1574		1901
1575	void	1902	void
1576	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1903	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1577	PPCODE:	1904	PPCODE:
1578	{	1905	{
1579	int fd = s_fileno_croak (fh, 0);	1906	int fd = s_fileno_croak (fh, 0);
1580	dREQ;	1907	dREQ;
1581		1908
…		…
1594		1921
1595	REQ_SEND;	1922	REQ_SEND;
1596	}	1923	}
1597		1924
1598	void	1925	void
		1926	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1927	PPCODE:
		1928	{
		1929	char *svptr = 0;
		1930
		1931	sv_clear_foreign (data);
		1932
		1933	if (length) /* known length, directly read into scalar */
		1934	{
		1935	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1936	svptr = sv_grow (data, length + 1);
		1937	else if (SvCUR (data) < length)
		1938	croak ("length outside of scalar, and cannot grow");
		1939	else
		1940	svptr = SvPVbyte_nolen (data);
		1941	}
		1942
		1943	{
		1944	dREQ;
		1945
		1946	req->type = EIO_SLURP;
		1947	req_set_path1 (req, pathname);
		1948	req->offs = offset;
		1949	req->size = length;
		1950	req->sv2 = SvREFCNT_inc (data);
		1951	req->ptr2 = svptr;
		1952
		1953	if (!SvREADONLY (data))
		1954	{
		1955	SvREADONLY_on (data);
		1956	req->flags |= FLAG_SV2_RO_OFF;
		1957	}
		1958
		1959	REQ_SEND;
		1960	}
		1961	}
		1962
		1963	void
1599	aio_busy (double delay, SV *callback=&PL_sv_undef)	1964	aio_busy (double delay, SV *callback = &PL_sv_undef)
1600	PPCODE:	1965	PPCODE:
1601	{	1966	{
1602	dREQ;	1967	dREQ;
1603		1968
1604	req->type = EIO_BUSY;	1969	req->type = EIO_BUSY;
…		…
1606		1971
1607	REQ_SEND;	1972	REQ_SEND;
1608	}	1973	}
1609		1974
1610	void	1975	void
1611	aio_group (SV *callback=&PL_sv_undef)	1976	aio_group (SV *callback = &PL_sv_undef)
1612	PPCODE:	1977	PPCODE:
1613	{	1978	{
1614	dREQ;	1979	dREQ;
1615		1980
1616	req->type = EIO_GROUP;	1981	req->type = EIO_GROUP;
1617		1982
		1983	PUTBACK;
1618	req_submit (req);	1984	req_submit (req);
		1985	SPAGAIN;
		1986
1619	XPUSHs (req_sv (req, aio_grp_stash));	1987	XPUSHs (req_sv (req, aio_grp_stash));
1620	}	1988	}
1621		1989
1622	void	1990	void
1623	aio_nop (SV *callback=&PL_sv_undef)	1991	aio_nop (SV *callback = &PL_sv_undef)
1624	ALIAS:	1992	ALIAS:
1625	aio_nop = EIO_NOP	1993	aio_nop = EIO_NOP
1626	aio_sync = EIO_SYNC	1994	aio_sync = EIO_SYNC
1627	PPCODE:	1995	PPCODE:
1628	{	1996	{
…		…
1632		2000
1633	REQ_SEND;	2001	REQ_SEND;
1634	}	2002	}
1635		2003
1636	int	2004	int
1637	aioreq_pri (int pri = 0)	2005	aioreq_pri (int pri = NO_INIT)
1638	CODE:	2006	CODE:
1639	RETVAL = next_pri;	2007	RETVAL = next_pri;
1640	if (items > 0)	2008	if (items > 0)
1641	{	2009	{
1642	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2010	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1732	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2100	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1733	OUTPUT:	2101	OUTPUT:
1734	RETVAL	2102	RETVAL
1735		2103
1736	void	2104	void
1737	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2105	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1738	PPCODE:	2106	PPCODE:
1739	sv_unmagic (scalar, MMAP_MAGIC);	2107	sv_clear_foreign (scalar);
1740	{	2108	{
1741	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2109	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1742	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2110	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1743	if (addr == (void *)-1)	2111	if (addr == (void *)-1)
1744	XSRETURN_NO;	2112	XSRETURN_NO;
1745		2113
1746	sv_force_normal (scalar);	2114	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1747
1748	/* we store the length in mg_obj, as namlen is I32 :/ */
1749	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1750	->mg_obj = (SV *)length;
1751
1752	SvUPGRADE (scalar, SVt_PV); /* nop... */
1753		2115
1754	if (!(prot & PROT_WRITE))	2116	if (!(prot & PROT_WRITE))
1755	SvREADONLY_on (scalar);	2117	SvREADONLY_on (scalar);
1756		2118
1757	if (SvLEN (scalar))
1758	Safefree (SvPVX (scalar));
1759
1760	SvPVX (scalar) = (char *)addr;
1761	SvCUR_set (scalar, length);
1762	SvLEN_set (scalar, 0);
1763	SvPOK_only (scalar);
1764
1765	XSRETURN_YES;	2119	XSRETURN_YES;
1766	}	2120	}
1767		2121
1768	void	2122	void
1769	munmap (SV *scalar)	2123	munmap (SV *scalar)
1770	CODE:	2124	CODE:
1771	sv_unmagic (scalar, MMAP_MAGIC);	2125	sv_clear_foreign (scalar);
		2126
		2127	SV *
		2128	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2129	CODE:
		2130	{
		2131	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2132	void *new;
		2133
		2134	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2135	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2136
		2137	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2138
		2139	RETVAL = &PL_sv_no;
		2140
		2141	if (new != (void *)-1)
		2142	{
		2143	RETVAL = new == (void *)mg->mg_ptr
		2144	? newSVpvn ("0 but true", 10)
		2145	: &PL_sv_yes;
		2146
		2147	mg->mg_ptr = (char *)new;
		2148	mg->mg_obj = (SV *)new_length;
		2149
		2150	SvPVX (scalar) = mg->mg_ptr;
		2151	SvCUR_set (scalar, new_length);
		2152	}
		2153	}
		2154	OUTPUT:
		2155	RETVAL
1772		2156
1773	int	2157	int
1774	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2158	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1775	ALIAS:	2159	ALIAS:
1776	mprotect = 1	2160	mprotect = 1
1777	CODE:	2161	CODE:
1778	{	2162	{
1779	STRLEN svlen;	2163	STRLEN svlen;
1780	void *addr = SvPVbyte (scalar, svlen);	2164	void *addr = SvPVbyte (scalar, svlen);
1781	size_t len = SvUV (length);	2165	STRLEN len = SvUV (length);
1782		2166
1783	if (offset < 0)	2167	if (offset < 0)
1784	offset += svlen;	2168	offset += svlen;
1785		2169
1786	if (offset < 0 || offset > svlen)	2170	if (offset < 0 || offset > svlen)
…		…
1800	}	2184	}
1801	OUTPUT:	2185	OUTPUT:
1802	RETVAL	2186	RETVAL
1803		2187
1804	int	2188	int
1805	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2189	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1806	CODE:	2190	CODE:
1807	{	2191	{
1808	STRLEN svlen;	2192	STRLEN svlen;
1809	void *addr = SvPVbyte (scalar, svlen);	2193	void *addr = SvPVbyte (scalar, svlen);
1810	size_t len = SvUV (length);	2194	size_t len = SvUV (length);
…		…
1866	#else	2250	#else
1867	RETVAL = EIO_ENOSYS ();	2251	RETVAL = EIO_ENOSYS ();
1868	#endif	2252	#endif
1869	OUTPUT:	2253	OUTPUT:
1870	RETVAL	2254	RETVAL
		2255
		2256	int
		2257	pipesize (aio_rfd rfh, int new_size = -1)
		2258	PROTOTYPE: $;$
		2259	CODE:
		2260	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2261	if (new_size >= 0)
		2262	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2263	else
		2264	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2265	#else
		2266	errno = ENOSYS;
		2267	RETVAL = -1;
		2268	#endif
		2269	OUTPUT:
		2270	RETVAL
		2271
		2272	void
		2273	pipe2 (int flags = 0)
		2274	PROTOTYPE: ;$
		2275	PPCODE:
		2276	{
		2277	int fd[2];
		2278	int res;
		2279
		2280	if (flags)
		2281	#if HAVE_PIPE2
		2282	res = pipe2 (fd, flags);
		2283	#else
		2284	res = (errno = ENOSYS, -1);
		2285	#endif
		2286	else
		2287	res = pipe (fd);
		2288
		2289	if (!res)
		2290	{
		2291	EXTEND (SP, 2);
		2292	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2293	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2294	}
		2295	}
		2296
		2297	void
		2298	eventfd (unsigned int initval = 0, int flags = 0)
		2299	PPCODE:
		2300	{
		2301	int fd;
		2302	#if HAVE_EVENTFD
		2303	fd = eventfd (initval, flags);
		2304	#else
		2305	fd = (errno = ENOSYS, -1);
		2306	#endif
		2307
		2308	XPUSHs (newmortalFH (fd, O_RDWR));
		2309	}
		2310
		2311	void
		2312	timerfd_create (int clockid, int flags = 0)
		2313	PPCODE:
		2314	{
		2315	int fd;
		2316	#if HAVE_TIMERFD
		2317	fd = timerfd_create (clockid, flags);
		2318	#else
		2319	fd = (errno = ENOSYS, -1);
		2320	#endif
		2321
		2322	XPUSHs (newmortalFH (fd, O_RDWR));
		2323	}
		2324
		2325	void
		2326	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2327	PPCODE:
		2328	{
		2329	int fd = s_fileno_croak (fh, 0);
		2330	#if HAVE_TIMERFD
		2331	int res;
		2332	struct itimerspec its, ots;
		2333
		2334	ts_set (&its.it_interval, interval);
		2335	ts_set (&its.it_value , value);
		2336	res = timerfd_settime (fd, flags, &its, &ots);
		2337
		2338	if (!res)
		2339	{
		2340	EXTEND (SP, 2);
		2341	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2342	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2343	}
		2344	#else
		2345	errno = ENOSYS;
		2346	#endif
		2347	}
		2348
		2349	void
		2350	timerfd_gettime (SV *fh)
		2351	PPCODE:
		2352	{
		2353	int fd = s_fileno_croak (fh, 0);
		2354	#if HAVE_TIMERFD
		2355	int res;
		2356	struct itimerspec ots;
		2357	res = timerfd_gettime (fd, &ots);
		2358
		2359	if (!res)
		2360	{
		2361	EXTEND (SP, 2);
		2362	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2363	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2364	}
		2365	#else
		2366	errno = ENOSYS;
		2367	#endif
		2368	}
		2369
		2370	UV
		2371	get_fdlimit ()
		2372	CODE:
		2373	#if HAVE_RLIMITS
		2374	struct rlimit rl;
		2375	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2376	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2377	#endif
		2378	XSRETURN_UNDEF;
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	void
		2383	min_fdlimit (UV limit = 0x7fffffffU)
		2384	CODE:
		2385	{
		2386	#if HAVE_RLIMITS
		2387	struct rlimit rl;
		2388	rlim_t orig_rlim_max;
		2389	UV bit;
		2390
		2391	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2392	goto fail;
		2393
		2394	if (rl.rlim_cur == RLIM_INFINITY)
		2395	XSRETURN_YES;
		2396
		2397	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2398
		2399	if (rl.rlim_cur < limit)
		2400	{
		2401	rl.rlim_cur = limit;
		2402
		2403	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2404	rl.rlim_max = rl.rlim_cur;
		2405	}
		2406
		2407	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_YES;
		2409
		2410	if (errno == EPERM)
		2411	{
		2412	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2413	/* our limit overflows a system-wide limit */
		2414	/* try an adaptive algorithm, but do not lower the hardlimit */
		2415	rl.rlim_max = 0;
		2416	for (bit = 0x40000000U; bit; bit >>= 1)
		2417	{
		2418	rl.rlim_max |= bit;
		2419	rl.rlim_cur = rl.rlim_max;
		2420
		2421	/* nevr decrease the hard limit */
		2422	if (rl.rlim_max < orig_rlim_max)
		2423	break;
		2424
		2425	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2426	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2427	}
		2428
		2429	/* now, raise the soft limit to the max permitted */
		2430	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2431	{
		2432	rl.rlim_cur = rl.rlim_max;
		2433	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2434	errno = EPERM;
		2435	}
		2436	}
		2437	#endif
		2438	fail:
		2439	XSRETURN_UNDEF;
		2440	}
1871		2441
1872	void _on_next_submit (SV *cb)	2442	void _on_next_submit (SV *cb)
1873	CODE:	2443	CODE:
1874	SvREFCNT_dec (on_next_submit);	2444	SvREFCNT_dec (on_next_submit);
1875	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2445	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1910	cancel (aio_req_ornot req)	2480	cancel (aio_req_ornot req)
1911	CODE:	2481	CODE:
1912	eio_cancel (req);	2482	eio_cancel (req);
1913		2483
1914	void	2484	void
1915	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2485	cb (aio_req_ornot req, SV *callback = NO_INIT)
1916	PPCODE:	2486	PPCODE:
1917	{	2487	{
1918	if (GIMME_V != G_VOID)	2488	if (GIMME_V != G_VOID)
1919	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2489	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1920		2490
1921	if (items > 1)	2491	if (items > 1)
1922	{	2492	{
1923	SV *cb_cv =get_cb (callback);	2493	SV *cb_cv = get_cb (callback);
1924		2494
1925	SvREFCNT_dec (req->callback);	2495	SvREFCNT_dec (req->callback);
1926	req->callback = SvREFCNT_inc (cb_cv);	2496	req->callback = SvREFCNT_inc (cb_cv);
1927	}	2497	}
1928	}	2498	}
…		…
1985	limit (aio_req grp, int limit)	2555	limit (aio_req grp, int limit)
1986	CODE:	2556	CODE:
1987	eio_grp_limit (grp, limit);	2557	eio_grp_limit (grp, limit);
1988		2558
1989	void	2559	void
1990	feed (aio_req grp, SV *callback=&PL_sv_undef)	2560	feed (aio_req grp, SV *callback = &PL_sv_undef)
1991	CODE:	2561	CODE:
1992	{	2562	{
1993	SvREFCNT_dec (grp->sv2);	2563	SvREFCNT_dec (grp->sv2);
1994	grp->sv2 = newSVsv (callback);	2564	grp->sv2 = newSVsv (callback);
1995	grp->feed = aio_grp_feed;	2565	grp->feed = aio_grp_feed;

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