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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.215 by root, Sun Jun 17 17:07:25 2012 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

…		…
19		19
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	21	# include <sys/mman.h>
22	#endif	22	#endif
23		23
24	#if __linux__	24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	30	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	32	# include <linux/types.h>
28	# include <linux/fiemap.h>	33	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	34	# define HAVE_FIEMAP 1
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
101		106
102	/*****************************************************************************/	107	/*****************************************************************************/
103		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_RLIMITS
		116	#include <sys/time.h>
		117	#include <sys/resource.h>
		118	#endif
		119
104	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
107		123
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	124	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
114	STRLEN stroffset; \	130	STRLEN stroffset; \
115	SV *self;	131	SV *self;
116		132
117	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
118		134
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	135	#include "libeio/eio.h"
121		136
122	static int req_invoke (eio_req *req);	137	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	138	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	139	static void req_destroy (eio_req *grp);
…		…
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	157	# endif
143	#endif	158	#endif
144		159
145	/* defines all sorts of constants to 0 unless they are already defined */	160	/* defines all sorts of constants to 0 unless they are already defined */
		161	/* also provides const_iv_ and const_niv_ macros for them */
146	#include "def0.h"	162	#include "def0.h"
147		163
148	#ifndef makedev	164	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	165	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	166	#endif
…		…
153	#endif	169	#endif
154	#ifndef minor	170	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	171	# define minor(dev) ((dev) & 0xff)
156	#endif	172	#endif
157		173
158	#ifndef PAGESIZE	174	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	176	#endif
		177
		178	/*****************************************************************************/
		179
		180	#if !_POSIX_MAPPED_FILES
		181	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		182	# define munmap(addr,length) EIO_ENOSYS ()
		183	#endif
		184
		185	#if !_POSIX_MEMORY_PROTECTION
		186	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		187	#endif
		188
		189	#define FOREIGN_MAGIC PERL_MAGIC_ext
		190
		191	static int ecb_cold
		192	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		193	{
		194	int old_errno = errno;
		195	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		196	errno = old_errno;
		197
		198	mg->mg_obj = 0; /* just in case */
		199
		200	SvREADONLY_off (sv);
		201
		202	if (SvPVX (sv) != mg->mg_ptr)
		203	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		204
		205	SvCUR_set (sv, 0);
		206	SvPVX (sv) = 0;
		207	SvOK_off (sv);
		208
		209	return 0;
		210	}
		211
		212	static MGVTBL mmap_vtbl = {
		213	0, 0, 0, 0, mmap_free
		214	};
		215
		216	static int ecb_cold
		217	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		218	{
		219	free (mg->mg_ptr);
		220	mg->mg_obj = 0; /* just in case */
		221
		222	SvREADONLY_off (sv);
		223
		224	if (SvPVX (sv) != mg->mg_ptr)
		225	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		226
		227	SvCUR_set (sv, 0);
		228	SvPVX (sv) = 0;
		229	SvOK_off (sv);
		230
		231	return 0;
		232	}
		233
		234	static MGVTBL sysfree_vtbl = {
		235	0, 0, 0, 0, sysfree_free
		236	};
		237
		238	/*****************************************************************************/
		239
		240	/* helper: set scalar to foreign ptr with custom free */
		241	static void
		242	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		243	{
		244	sv_force_normal (sv);
		245
		246	/* we store the length in mg_obj, as namlen is I32 :/ */
		247	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		248	->mg_obj = (SV *)length;
		249
		250	SvUPGRADE (sv, SVt_PV); /* nop... */
		251
		252	if (SvLEN (sv))
		253	Safefree (SvPVX (sv));
		254
		255	SvPVX (sv) = (char *)addr;
		256	SvCUR_set (sv, length);
		257	SvLEN_set (sv, 0);
		258	SvPOK_only (sv);
		259	}
		260
		261	static void
		262	sv_clear_foreign (SV *sv)
		263	{
		264	/* todo: iterate over magic and only free ours, but of course */
		265	/* the perl5porters will call that (correct) behaviour buggy */
		266	sv_unmagic (sv, FOREIGN_MAGIC);
		267	}
161		268
162	/*****************************************************************************/	269	/*****************************************************************************/
163		270
164	static void	271	static void
165	fiemap (eio_req *req)	272	fiemap (eio_req *req)
166	{	273	{
167	req->result = -1;	274	req->result = -1;
168		275
169	#if HAVE_FIEMAP	276	#if HAVE_FIEMAP
		277	/* assume some c99 */
		278	struct fiemap *fiemap = 0;
		279	size_t end_offset;
170	int count = req->int3;	280	int count = req->int3;
171		281
172	/* heuristic: first try with 64 extents if we don't know how many, */	282	req->flags |= EIO_FLAG_PTR1_FREE;
173	/* as most files have (hopefully) fewer than this many extents */	283
174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	284	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		285	/* increase in 3.5kb steps */
175	if (count < 0)	286	if (count < 0)
176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	287	count = 8;
		288
		289	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		290	errno = ENOMEM;
		291	if (!fiemap)
		292	return;
		293
		294	req->ptr1 = fiemap;
		295
		296	fiemap->fm_start = req->offs;
		297	fiemap->fm_length = req->size;
		298	fiemap->fm_flags = req->int2;
		299	fiemap->fm_extent_count = count;
		300
		301	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		302	return;
		303
		304	if (req->int3 >= 0 /* not autosizing */
		305	|| !fiemap->fm_mapped_extents /* no more extents */
		306	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		307	goto done;
		308
		309	/* else we have to loop -
		310	* it would be tempting (actually I tried that first) to just query the
		311	* number of extents needed, but linux often feels like not returning all
		312	* extents, without telling us it left any out. this complicates
		313	* this quite a bit.
		314	*/
		315
		316	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
177		317
178	for (;;)	318	for (;;)
179	{	319	{
		320	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		321	char scratch[3072];
		322	struct fiemap *incmap = (struct fiemap *)scratch;
		323
		324	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		325	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		326	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		327	incmap->fm_flags = fiemap->fm_flags;
		328	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		331	return;
		332
		333	if (!incmap->fm_mapped_extents)
		334	goto done;
		335
		336	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	337	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181	errno = ENOMEM;	338	errno = ENOMEM;
182	if (!fiemap)	339	if (!fiemap)
183	return;	340	return;
184		341
185	req->ptr1 = fiemap;	342	req->ptr1 = fiemap;
186	req->flags |= EIO_FLAG_PTR1_FREE;
187		343
188	fiemap->fm_start = req->offs;	344	for (count = 0; count < incmap->fm_mapped_extents; ++count)
189	fiemap->fm_length = req->size;	345	{
190	fiemap->fm_flags = req->int2;	346	struct fiemap_extent *e = incmap->fm_extents + count;
191	fiemap->fm_extent_count = count;
192		347
193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	348	if (e->fe_logical + e->fe_length >= end_offset)
194	return;	349	goto done;
195		350
196	if (req->int3 >= 0)	351	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
197	break; /* when not autosizing we are done */
198		352
199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	353	if (e->fe_flags & FIEMAP_EXTENT_LAST)
200	break; /* autosizing successful, we are done */	354	goto done;
201		355
202	fiemap->fm_flags = req->int2;	356	}
203	fiemap->fm_extent_count = 0;
204
205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206	return;
207
208	count = fiemap->fm_mapped_extents;
209
210	free (fiemap);
211	}	357	}
212		358
		359	done:
213	req->result = 0;	360	req->result = 0;
214		361
215	#else	362	#else
216	errno = ENOSYS;	363	errno = ENOSYS;
217	#endif	364	#endif
…		…
264	}	411	}
265		412
266	static SV *	413	static SV *
267	newSVaio_wd (aio_wd wd)	414	newSVaio_wd (aio_wd wd)
268	{	415	{
269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	416	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
270	}	417	}
271		418
272	static aio_req	419	static aio_req
273	SvAIO_REQ (SV *sv)	420	SvAIO_REQ (SV *sv)
274	{	421	{
…		…
293	|| SvTYPE (SvRV (sv)) != SVt_PVMG	440	|| SvTYPE (SvRV (sv)) != SVt_PVMG
294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	441	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	442	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296		443
297	return (aio_wd)(long)SvIVX (SvRV (sv));	444	return (aio_wd)(long)SvIVX (SvRV (sv));
		445	}
		446
		447	static SV *
		448	newmortalFH (int fd, int flags)
		449	{
		450	if (fd < 0)
		451	return &PL_sv_undef;
		452
		453	GV *gv = (GV *)sv_newmortal ();
		454	char sym[64];
		455	int symlen;
		456
		457	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		458	gv_init (gv, aio_stash, sym, symlen, 0);
		459
		460	symlen = snprintf (
		461	sym,
		462	sizeof (sym),
		463	"%s&=%d",
		464	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		465	fd
		466	);
		467
		468	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		469	? (SV *)gv : &PL_sv_undef;
298	}	470	}
299		471
300	static void	472	static void
301	aio_grp_feed (aio_req grp)	473	aio_grp_feed (aio_req grp)
302	{	474	{
…		…
430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	602	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
431	}	603	}
432	break;	604	break;
433		605
434	case EIO_OPEN:	606	case EIO_OPEN:
435	{	607	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
436	/* convert fd to fh */
437	SV *fh = &PL_sv_undef;
438
439	if (req->result >= 0)
440	{
441	GV *gv = (GV *)sv_newmortal ();
442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
443	char sym [64];
444	int symlen;
445
446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
447	gv_init (gv, aio_stash, sym, symlen, 0);
448
449	symlen = snprintf (
450	sym,
451	sizeof (sym),
452	"%s&=%d",
453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454	(int)req->result
455	);
456
457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458	fh = (SV *)gv;
459	}
460
461	PUSHs (fh);
462	}
463	break;	608	break;
464		609
465	case EIO_STATVFS:	610	case EIO_STATVFS:
466	case EIO_FSTATVFS:	611	case EIO_FSTATVFS:
467	{	612	{
…		…
470	#ifndef _WIN32	615	#ifndef _WIN32
471	if (req->result >= 0)	616	if (req->result >= 0)
472	{	617	{
473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	618	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474	HV *hv = newHV ();	619	HV *hv = newHV ();
		620	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		621	* chooses to make it a struct.
		622	*/
		623	unsigned long fsid = 0;
		624	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
475		625
476	rv = sv_2mortal (newRV_noinc ((SV *)hv));	626	rv = sv_2mortal (newRV_noinc ((SV *)hv));
477		627
478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	628	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	629	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	631	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	632	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	633	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	634	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	635	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	636	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	637	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	638	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489	}	639	}
490	#endif	640	#endif
491		641
…		…
542	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
543	PUSHs (sv_result);	693	PUSHs (sv_result);
544	}	694	}
545	break;	695	break;
546		696
		697	case EIO_SLURP:
		698	{
		699	if (req->result >= 0)
		700	{
		701	/* if length was originally not known, we steal the malloc'ed memory */
		702	if (req->flags & EIO_FLAG_PTR2_FREE)
		703	{
		704	req->flags &= ~EIO_FLAG_PTR2_FREE;
		705	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		706	}
		707	else
		708	{
		709	SvCUR_set (req->sv2, req->result);
		710	*SvEND (req->sv2) = 0;
		711	SvPOK_only (req->sv2);
		712	}
		713
		714	SvSETMAGIC (req->sv2);
		715	}
		716
		717	PUSHs (sv_result);
		718	}
		719	break;
		720
547	case EIO_CUSTOM:	721	case EIO_CUSTOM:
548	if (req->feed == fiemap)	722	if (req->feed == fiemap)
549	{	723	{
550	#if HAVE_FIEMAP	724	#if HAVE_FIEMAP
551	if (!req->result)	725	if (!req->result)
…		…
656	{	830	{
657	while (eio_nreqs ())	831	while (eio_nreqs ())
658	{	832	{
659	int size;	833	int size;
660		834
661	X_LOCK (reslock);	835	X_LOCK (EIO_POOL->reslock);
662	size = res_queue.size;	836	size = EIO_POOL->res_queue.size;
663	X_UNLOCK (reslock);	837	X_UNLOCK (EIO_POOL->reslock);
664		838
665	if (size)	839	if (size)
666	return;	840	return;
667		841
668	etp_maybe_start_thread ();	842	etp_maybe_start_thread (EIO_POOL);
669		843
670	s_epipe_wait (&respipe);	844	s_epipe_wait (&respipe);
671	}	845	}
672	}	846	}
673		847
…		…
694	create_respipe ();	868	create_respipe ();
695		869
696	if (eio_init (want_poll, done_poll) < 0)	870	if (eio_init (want_poll, done_poll) < 0)
697	croak ("IO::AIO: unable to initialise eio library");	871	croak ("IO::AIO: unable to initialise eio library");
698	}	872	}
699
700	/*****************************************************************************/
701
702	#if !_POSIX_MAPPED_FILES
703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
704	# define munmap(addr,length) EIO_ENOSYS ()
705	#endif
706
707	#if !_POSIX_MEMORY_PROTECTION
708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
709	# define PROT_NONE 0
710	# define PROT_WRITE 0
711	# define MAP_PRIVATE 0
712	# define MAP_SHARED 0
713	# define MAP_FIXED 0
714	#endif
715
716	#define MMAP_MAGIC PERL_MAGIC_ext
717
718	static int ecb_cold
719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
720	{
721	int old_errno = errno;
722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723	errno = old_errno;
724
725	mg->mg_obj = 0; /* just in case */
726
727	SvREADONLY_off (sv);
728
729	if (SvPVX (sv) != mg->mg_ptr)
730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732	SvCUR_set (sv, 0);
733	SvPVX (sv) = 0;
734	SvOK_off (sv);
735
736	return 0;
737	}
738
739	static MGVTBL mmap_vtbl = {
740	0, 0, 0, 0, mmap_free
741	};
742		873
743	/*****************************************************************************/	874	/*****************************************************************************/
744		875
745	static SV *	876	static SV *
746	get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
…		…
858	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
859	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
860	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
861	# define const_eio(name) { # name, (IV) EIO_ ## name },	992	# define const_eio(name) { # name, (IV) EIO_ ## name },
862		993
863	/* you have to re-run ./gendef0 after adding/Removing any constants here */	994	/* you have to re-run ./gendef0 after adding/removing any constants here */
864		995	/* the first block can be undef if missing */
865	const_iv (ENOSYS)	996	const_iv (ENOSYS)
866	const_iv (EXDEV)	997	const_iv (EXDEV)
867	const_iv (EBADR)	998	const_iv (EBADR)
868		999
		1000	/* for lseek */
		1001	const_iv (SEEK_DATA)
		1002	const_iv (SEEK_HOLE)
		1003
		1004	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1005	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1006	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1007	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1008	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1009	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1010
		1011	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1012	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1013	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1014	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1015	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1016
		1017	/* the second block will be 0 when missing */
869	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
870	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
871	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
872	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
873	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
…		…
886	const_iv (O_SEARCH)	1035	const_iv (O_SEARCH)
887	const_iv (O_DIRECTORY)	1036	const_iv (O_DIRECTORY)
888	const_iv (O_DSYNC)	1037	const_iv (O_DSYNC)
889	const_iv (O_RSYNC)	1038	const_iv (O_RSYNC)
890	const_iv (O_SYNC)	1039	const_iv (O_SYNC)
		1040	const_iv (O_PATH)
		1041	const_iv (O_TMPFILE)
891	const_iv (O_TTY_INIT)	1042	const_iv (O_TTY_INIT)
892		1043
893	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
894	const_iv (S_IFCHR)	1045	const_iv (S_IFCHR)
895	const_iv (S_IFBLK)	1046	const_iv (S_IFBLK)
…		…
897	const_iv (S_IFREG)	1048	const_iv (S_IFREG)
898	const_iv (S_IFDIR)	1049	const_iv (S_IFDIR)
899	const_iv (S_IFWHT)	1050	const_iv (S_IFWHT)
900	const_iv (S_IFSOCK)	1051	const_iv (S_IFSOCK)
901	const_iv (S_IFMT)	1052	const_iv (S_IFMT)
902
903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
909
910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
915		1053
916	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
917	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
918	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
919	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
929	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
930	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
931	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
932	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
933		1071
934	/*const_iv (MAP_FIXED)*/
935	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
936	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
937	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
938		1076
939	/* linuxish */	1077	/* linuxish */
940	const_iv (MAP_HUGETLB)
941	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
942	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
943	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
944	const_iv (MAP_NONBLOCK)	1081	const_iv (MAP_NONBLOCK)
		1082	const_iv (MAP_GROWSDOWN)
		1083	const_iv (MAP_32BIT)
		1084	const_iv (MAP_HUGETLB)
		1085	const_iv (MAP_STACK)
		1086
		1087	const_iv (F_DUPFD_CLOEXEC)
		1088
		1089	const_iv (F_OFD_GETLK)
		1090	const_iv (F_OFD_SETLK)
		1091	const_iv (F_OFD_GETLKW)
		1092
		1093	const_iv (FIFREEZE)
		1094	const_iv (FITHAW)
		1095	const_iv (FITRIM)
		1096	const_iv (FICLONE)
		1097	const_iv (FICLONERANGE)
		1098	const_iv (FIDEDUPERANGE)
		1099
		1100	const_iv (FS_IOC_GETFLAGS)
		1101	const_iv (FS_IOC_SETFLAGS)
		1102	const_iv (FS_IOC_GETVERSION)
		1103	const_iv (FS_IOC_SETVERSION)
		1104	const_iv (FS_IOC_FIEMAP)
		1105	const_iv (FS_IOC_FSGETXATTR)
		1106	const_iv (FS_IOC_FSSETXATTR)
		1107	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1108	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1109	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1110
		1111	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1112
		1113	const_iv (FS_SECRM_FL)
		1114	const_iv (FS_UNRM_FL)
		1115	const_iv (FS_COMPR_FL)
		1116	const_iv (FS_SYNC_FL)
		1117	const_iv (FS_IMMUTABLE_FL)
		1118	const_iv (FS_APPEND_FL)
		1119	const_iv (FS_NODUMP_FL)
		1120	const_iv (FS_NOATIME_FL)
		1121	const_iv (FS_DIRTY_FL)
		1122	const_iv (FS_COMPRBLK_FL)
		1123	const_iv (FS_NOCOMP_FL)
		1124	const_iv (FS_ENCRYPT_FL)
		1125	const_iv (FS_BTREE_FL)
		1126	const_iv (FS_INDEX_FL)
		1127	const_iv (FS_JOURNAL_DATA_FL)
		1128	const_iv (FS_NOTAIL_FL)
		1129	const_iv (FS_DIRSYNC_FL)
		1130	const_iv (FS_TOPDIR_FL)
		1131	const_iv (FS_FL_USER_MODIFIABLE)
		1132
		1133	const_iv (FS_XFLAG_REALTIME)
		1134	const_iv (FS_XFLAG_PREALLOC)
		1135	const_iv (FS_XFLAG_IMMUTABLE)
		1136	const_iv (FS_XFLAG_APPEND)
		1137	const_iv (FS_XFLAG_SYNC)
		1138	const_iv (FS_XFLAG_NOATIME)
		1139	const_iv (FS_XFLAG_NODUMP)
		1140	const_iv (FS_XFLAG_RTINHERIT)
		1141	const_iv (FS_XFLAG_PROJINHERIT)
		1142	const_iv (FS_XFLAG_NOSYMLINKS)
		1143	const_iv (FS_XFLAG_EXTSIZE)
		1144	const_iv (FS_XFLAG_EXTSZINHERIT)
		1145	const_iv (FS_XFLAG_NODEFRAG)
		1146	const_iv (FS_XFLAG_FILESTREAM)
		1147	const_iv (FS_XFLAG_DAX)
		1148	const_iv (FS_XFLAG_HASATTR)
945		1149
946	const_iv (FIEMAP_FLAG_SYNC)	1150	const_iv (FIEMAP_FLAG_SYNC)
947	const_iv (FIEMAP_FLAG_XATTR)	1151	const_iv (FIEMAP_FLAG_XATTR)
948	const_iv (FIEMAP_FLAGS_COMPAT)	1152	const_iv (FIEMAP_FLAGS_COMPAT)
949	const_iv (FIEMAP_EXTENT_LAST)	1153	const_iv (FIEMAP_EXTENT_LAST)
…		…
961	const_iv (SPLICE_F_MOVE)	1165	const_iv (SPLICE_F_MOVE)
962	const_iv (SPLICE_F_NONBLOCK)	1166	const_iv (SPLICE_F_NONBLOCK)
963	const_iv (SPLICE_F_MORE)	1167	const_iv (SPLICE_F_MORE)
964	const_iv (SPLICE_F_GIFT)	1168	const_iv (SPLICE_F_GIFT)
965		1169
966	const_iv (SEEK_DATA)	1170	const_iv (EFD_CLOEXEC)
		1171	const_iv (EFD_NONBLOCK)
967	const_iv (SEEK_HOLE)	1172	const_iv (EFD_SEMAPHORE)
968		1173
969	/* libeio constants */	1174	/* these are libeio constants, and are independent of gendef0 */
970	const_eio (SEEK_SET)	1175	const_eio (SEEK_SET)
971	const_eio (SEEK_CUR)	1176	const_eio (SEEK_CUR)
972	const_eio (SEEK_END)	1177	const_eio (SEEK_END)
973		1178
974	const_eio (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
…		…
983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
984	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1190	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
986		1191
987	const_eio (FALLOC_FL_KEEP_SIZE)	1192	const_eio (FALLOC_FL_KEEP_SIZE)
		1193	const_eio (FALLOC_FL_PUNCH_HOLE)
		1194	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1195	const_eio (FALLOC_FL_ZERO_RANGE)
		1196	const_eio (FALLOC_FL_INSERT_RANGE)
		1197	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1198
		1199	const_eio (RENAME_NOREPLACE)
		1200	const_eio (RENAME_EXCHANGE)
		1201	const_eio (RENAME_WHITEOUT)
988		1202
989	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
990	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
991	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
992	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1060	PROTOTYPE: $	1274	PROTOTYPE: $
1061	CODE:	1275	CODE:
1062	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
1063		1277
1064	void	1278	void
1065	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1066	PPCODE:	1280	PPCODE:
1067	{	1281	{
1068	dREQ;	1282	dREQ;
1069		1283
1070	req->type = EIO_WD_OPEN;	1284	req->type = EIO_WD_OPEN;
…		…
1072		1286
1073	REQ_SEND;	1287	REQ_SEND;
1074	}	1288	}
1075		1289
1076	void	1290	void
1077	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1291	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1078	PPCODE:	1292	PPCODE:
1079	{	1293	{
1080	dREQ;	1294	dREQ;
1081		1295
1082	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
…		…
1086		1300
1087	REQ_SEND;	1301	REQ_SEND;
1088	}	1302	}
1089		1303
1090	void	1304	void
1091	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1092	ALIAS:	1306	ALIAS:
1093	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
1094	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
1095	aio_syncfs = EIO_SYNCFS	1309	aio_syncfs = EIO_SYNCFS
1096	PPCODE:	1310	PPCODE:
1097	{	1311	{
1098	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
1099	dREQ;	1313	dREQ;
1100		1314
1101	req->type = ix;	1315	req->type = ix;
1102	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1103	req->int1 = fd;	1317	req->int1 = fd;
1104		1318
1105	REQ_SEND;	1319	REQ_SEND;
1106	}	1320	}
1107		1321
1108	void	1322	void
1109	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1323	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1110	PPCODE:	1324	PPCODE:
1111	{	1325	{
1112	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
1113	dREQ;	1327	dREQ;
1114		1328
1115	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
1116	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
1117	req->int1 = fd;	1331	req->int1 = fd;
…		…
1121		1335
1122	REQ_SEND;	1336	REQ_SEND;
1123	}	1337	}
1124		1338
1125	void	1339	void
1126	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1340	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1127	PPCODE:	1341	PPCODE:
1128	{	1342	{
1129	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
1130	dREQ;	1344	dREQ;
1131		1345
1132	req->type = EIO_FALLOCATE;	1346	req->type = EIO_FALLOCATE;
1133	req->sv1 = newSVsv (fh);	1347	req->sv1 = newSVsv (fh);
1134	req->int1 = fd;	1348	req->int1 = fd;
…		…
1138		1352
1139	REQ_SEND;	1353	REQ_SEND;
1140	}	1354	}
1141		1355
1142	void	1356	void
1143	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1144	PPCODE:	1358	PPCODE:
1145	{	1359	{
1146	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1360	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1147	int fd = s_fileno_croak (fh, 0);	1361	int fd = s_fileno_croak (fh, 0);
1148	dREQ;	1362	dREQ;
1149		1363
1150	if (expect_false (close_fd < 0))	1364	if (expect_false (close_fd < 0))
1151	{	1365	{
1152	int pipefd [2];	1366	int pipefd [2];
…		…
1172		1386
1173	REQ_SEND;	1387	REQ_SEND;
1174	}	1388	}
1175		1389
1176	void	1390	void
1177	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1391	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1178	PPCODE:	1392	PPCODE:
1179	{	1393	{
1180	int fd = s_fileno_croak (fh, 0);	1394	int fd = s_fileno_croak (fh, 0);
1181	dREQ;	1395	dREQ;
1182		1396
…		…
1188		1402
1189	REQ_SEND;	1403	REQ_SEND;
1190	}	1404	}
1191		1405
1192	void	1406	void
1193	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1407	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1194	ALIAS:	1408	ALIAS:
1195	aio_read = EIO_READ	1409	aio_read = EIO_READ
1196	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
1197	PPCODE:	1411	PPCODE:
1198	{	1412	{
…		…
1214	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
1215	}	1429	}
1216	else	1430	else
1217	{	1431	{
1218	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
1219	SvUPGRADE (data, SVt_PV);
1220	if (SvLEN (data) >= SvCUR (data))	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1221	svptr = SvGROW (data, len + dataoffset + 1);	1434	svptr = sv_grow (data, len + dataoffset + 1);
1222	else if (SvCUR (data) < len + dataoffset)	1435	else if (SvCUR (data) < len + dataoffset)
1223	croak ("length + dataoffset outside of scalar, and cannot grow");	1436	croak ("length + dataoffset outside of scalar, and cannot grow");
1224	}	1437	}
1225		1438
1226	{	1439	{
…		…
1244	REQ_SEND;	1457	REQ_SEND;
1245	}	1458	}
1246	}	1459	}
1247		1460
1248	void	1461	void
		1462	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1463	ALIAS:
		1464	aio_ioctl = EIO_IOCTL
		1465	aio_fcntl = EIO_FCNTL
		1466	PPCODE:
		1467	{
		1468	int fd = s_fileno_croak (fh, 0);
		1469	char *svptr;
		1470
		1471	if (SvPOK (arg) || !SvNIOK (arg))
		1472	{
		1473	STRLEN svlen;
		1474	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1475	#ifdef IOCPARM_LEN
		1476	STRLEN need = IOCPARM_LEN (request);
		1477	#else
		1478	STRLEN need = 256;
		1479	#endif
		1480
		1481	if (svlen < need)
		1482	svptr = SvGROW (arg, need);
		1483	}
		1484	else
		1485	svptr = (char *)SvIV (arg);
		1486
		1487	{
		1488	dREQ;
		1489
		1490	req->type = ix;
		1491	req->sv1 = newSVsv (fh);
		1492	req->int1 = fd;
		1493	req->int2 = (long)request;
		1494	req->sv2 = SvREFCNT_inc (arg);
		1495	req->ptr2 = svptr;
		1496
		1497	REQ_SEND;
		1498	}
		1499	}
		1500
		1501	void
1249	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1502	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1250	ALIAS:	1503	ALIAS:
1251	aio_readlink = EIO_READLINK	1504	aio_readlink = EIO_READLINK
1252	aio_realpath = EIO_REALPATH	1505	aio_realpath = EIO_REALPATH
1253	PPCODE:	1506	PPCODE:
1254	{	1507	{
…		…
1259		1512
1260	REQ_SEND;	1513	REQ_SEND;
1261	}	1514	}
1262		1515
1263	void	1516	void
1264	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1517	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1265	PPCODE:	1518	PPCODE:
1266	{	1519	{
1267	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1268	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1269	dREQ;	1522	dREQ;
1270		1523
1271	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1272	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1273	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1278		1531
1279	REQ_SEND;	1532	REQ_SEND;
1280	}	1533	}
1281		1534
1282	void	1535	void
1283	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1536	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1284	PPCODE:	1537	PPCODE:
1285	{	1538	{
1286	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1287	dREQ;	1540	dREQ;
1288		1541
1289	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1290	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1291	req->int1 = fd;	1544	req->int1 = fd;
…		…
1294		1547
1295	REQ_SEND;	1548	REQ_SEND;
1296	}	1549	}
1297		1550
1298	void	1551	void
1299	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1300	ALIAS:	1553	ALIAS:
1301	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1302	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1303	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1304	PPCODE:	1557	PPCODE:
…		…
1313	UV	1566	UV
1314	major (UV dev)	1567	major (UV dev)
1315	ALIAS:	1568	ALIAS:
1316	minor = 1	1569	minor = 1
1317	CODE:	1570	CODE:
1318	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1319	OUTPUT:	1572	OUTPUT:
1320	RETVAL	1573	RETVAL
1321		1574
1322	UV	1575	UV
1323	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1325	RETVAL = makedev (maj, min);	1578	RETVAL = makedev (maj, min);
1326	OUTPUT:	1579	OUTPUT:
1327	RETVAL	1580	RETVAL
1328		1581
1329	void	1582	void
1330	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1583	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1331	PPCODE:	1584	PPCODE:
1332	{	1585	{
1333	dREQ;	1586	dREQ;
1334		1587
1335	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1338		1591
1339	REQ_SEND;	1592	REQ_SEND;
1340	}	1593	}
1341		1594
1342	void	1595	void
1343	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1596	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1344	PPCODE:	1597	PPCODE:
1345	{	1598	{
1346	dREQ;	1599	dREQ;
1347		1600
1348	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1350		1603
1351	REQ_SEND;	1604	REQ_SEND;
1352	}	1605	}
1353		1606
1354	void	1607	void
1355	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1608	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1356	PPCODE:	1609	PPCODE:
1357	{	1610	{
1358	dREQ;	1611	dREQ;
1359		1612
1360	req->int2 = mode;	1613	req->int2 = mode;
…		…
1362		1615
1363	REQ_SEND;	1616	REQ_SEND;
1364	}	1617	}
1365		1618
1366	void	1619	void
1367	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1620	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1368	PPCODE:	1621	PPCODE:
1369	{	1622	{
1370	dREQ;	1623	dREQ;
1371		1624
1372	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1375		1628
1376	REQ_SEND;	1629	REQ_SEND;
1377	}	1630	}
1378		1631
1379	void	1632	void
1380	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1381	PPCODE:	1634	PPCODE:
1382	{	1635	{
1383	dREQ;	1636	dREQ;
1384		1637
1385	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
…		…
1392		1645
1393	REQ_SEND;	1646	REQ_SEND;
1394	}	1647	}
1395		1648
1396	void	1649	void
1397	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1650	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1398	PPCODE:	1651	PPCODE:
1399	{	1652	{
1400	dREQ;	1653	dREQ;
1401		1654
1402	req->type = EIO_MKDIR;	1655	req->type = EIO_MKDIR;
…		…
1405		1658
1406	REQ_SEND;	1659	REQ_SEND;
1407	}	1660	}
1408		1661
1409	void	1662	void
1410	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1411	ALIAS:	1664	ALIAS:
1412	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1413	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1414	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1415	PPCODE:	1668	PPCODE:
…		…
1421		1674
1422	REQ_SEND;	1675	REQ_SEND;
1423	}	1676	}
1424		1677
1425	void	1678	void
1426	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1427	ALIAS:	1680	ALIAS:
1428	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1429	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1430	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1431	PPCODE:	1684	PPCODE:
…		…
1440		1693
1441	REQ_SEND;	1694	REQ_SEND;
1442	}	1695	}
1443		1696
1444	void	1697	void
		1698	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	eio_wd wd2 = 0;
		1702	dREQ;
		1703
		1704	req->type = EIO_RENAME;
		1705	req_set_path1 (req, oldpath);
		1706	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1707	req->int2 = flags;
		1708	req->int3 = (long)wd2;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
1445	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1714	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1446	PPCODE:	1715	PPCODE:
1447	{	1716	{
1448	dREQ;	1717	dREQ;
1449		1718
1450	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
…		…
1454		1723
1455	REQ_SEND;	1724	REQ_SEND;
1456	}	1725	}
1457		1726
1458	void	1727	void
1459	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1728	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1460	ALIAS:	1729	ALIAS:
1461	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1462	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1463	PPCODE:	1732	PPCODE:
1464	{	1733	{
1465	STRLEN svlen;	1734	STRLEN svlen;
1466	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1467	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1468		1740
1469	if (offset < 0)	1741	if (offset < 0)
1470	offset += svlen;	1742	offset += svlen;
1471		1743
1472	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1487	REQ_SEND;	1759	REQ_SEND;
1488	}	1760	}
1489	}	1761	}
1490		1762
1491	void	1763	void
1492	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1764	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1493	PPCODE:	1765	PPCODE:
1494	{	1766	{
1495	STRLEN svlen;	1767	STRLEN svlen;
1496	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1497	UV len = SvUV (length);	1769	UV len = SvUV (length);
…		…
1516	REQ_SEND;	1788	REQ_SEND;
1517	}	1789	}
1518	}	1790	}
1519		1791
1520	void	1792	void
1521	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1522	PPCODE:	1794	PPCODE:
1523	{	1795	{
1524	dREQ;	1796	dREQ;
1525		1797
1526	req->type = EIO_MLOCKALL;	1798	req->type = EIO_MLOCKALL;
…		…
1528		1800
1529	REQ_SEND;	1801	REQ_SEND;
1530	}	1802	}
1531		1803
1532	void	1804	void
1533	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1805	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1534	PPCODE:	1806	PPCODE:
1535	{	1807	{
1536	int fd = s_fileno_croak (fh, 0);	1808	int fd = s_fileno_croak (fh, 0);
1537	dREQ;	1809	dREQ;
1538		1810
1539	req->type = EIO_CUSTOM;	1811	req->type = EIO_CUSTOM;
1540	req->sv1 = newSVsv (fh);	1812	req->sv1 = newSVsv (fh);
1541	req->int1 = fd;	1813	req->int1 = fd;
…		…
1551		1823
1552	REQ_SEND;	1824	REQ_SEND;
1553	}	1825	}
1554		1826
1555	void	1827	void
		1828	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	char *svptr = 0;
		1832
		1833	sv_clear_foreign (data);
		1834
		1835	if (length) /* known length, directly read into scalar */
		1836	{
		1837	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1838	svptr = sv_grow (data, length + 1);
		1839	else if (SvCUR (data) < length)
		1840	croak ("length outside of scalar, and cannot grow");
		1841	else
		1842	svptr = SvPVbyte_nolen (data);
		1843	}
		1844
		1845	{
		1846	dREQ;
		1847
		1848	req->type = EIO_SLURP;
		1849	req_set_path1 (req, pathname);
		1850	req->offs = offset;
		1851	req->size = length;
		1852	req->sv2 = SvREFCNT_inc (data);
		1853	req->ptr2 = svptr;
		1854
		1855	if (!SvREADONLY (data))
		1856	{
		1857	SvREADONLY_on (data);
		1858	req->flags |= FLAG_SV2_RO_OFF;
		1859	}
		1860
		1861	REQ_SEND;
		1862	}
		1863	}
		1864
		1865	void
1556	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1557	PPCODE:	1867	PPCODE:
1558	{	1868	{
1559	dREQ;	1869	dREQ;
1560		1870
1561	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1563		1873
1564	REQ_SEND;	1874	REQ_SEND;
1565	}	1875	}
1566		1876
1567	void	1877	void
1568	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1569	PPCODE:	1879	PPCODE:
1570	{	1880	{
1571	dREQ;	1881	dREQ;
1572		1882
1573	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1574		1884
		1885	PUTBACK;
1575	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1576	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1577	}	1890	}
1578		1891
1579	void	1892	void
1580	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1581	ALIAS:	1894	ALIAS:
1582	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1583	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1584	PPCODE:	1897	PPCODE:
1585	{	1898	{
…		…
1589		1902
1590	REQ_SEND;	1903	REQ_SEND;
1591	}	1904	}
1592		1905
1593	int	1906	int
1594	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1595	CODE:	1908	CODE:
1596	RETVAL = next_pri;	1909	RETVAL = next_pri;
1597	if (items > 0)	1910	if (items > 0)
1598	{	1911	{
1599	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1689	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1690	OUTPUT:	2003	OUTPUT:
1691	RETVAL	2004	RETVAL
1692		2005
1693	void	2006	void
1694	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2007	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1695	PPCODE:	2008	PPCODE:
1696	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1697	{	2010	{
1698	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2011	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1699	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1700	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1701	XSRETURN_NO;	2014	XSRETURN_NO;
1702		2015
1703	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1704
1705	/* we store the length in mg_obj, as namlen is I32 :/ */
1706	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1707	->mg_obj = (SV *)length;
1708
1709	SvUPGRADE (scalar, SVt_PV); /* nop... */
1710		2017
1711	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1712	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1713		2020
1714	if (SvLEN (scalar))
1715	Safefree (SvPVX (scalar));
1716
1717	SvPVX (scalar) = (char *)addr;
1718	SvCUR_set (scalar, length);
1719	SvLEN_set (scalar, 0);
1720	SvPOK_only (scalar);
1721
1722	XSRETURN_YES;	2021	XSRETURN_YES;
1723	}	2022	}
1724		2023
1725	void	2024	void
1726	munmap (SV *scalar)	2025	munmap (SV *scalar)
1727	CODE:	2026	CODE:
1728	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1729		2028
1730	int	2029	int
1731	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2030	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1732	ALIAS:	2031	ALIAS:
1733	mprotect = 1	2032	mprotect = 1
1734	CODE:	2033	CODE:
1735	{	2034	{
1736	STRLEN svlen;	2035	STRLEN svlen;
1737	void *addr = SvPVbyte (scalar, svlen);	2036	void *addr = SvPVbyte (scalar, svlen);
1738	size_t len = SvUV (length);	2037	STRLEN len = SvUV (length);
1739		2038
1740	if (offset < 0)	2039	if (offset < 0)
1741	offset += svlen;	2040	offset += svlen;
1742		2041
1743	if (offset < 0 || offset > svlen)	2042	if (offset < 0 || offset > svlen)
…		…
1757	}	2056	}
1758	OUTPUT:	2057	OUTPUT:
1759	RETVAL	2058	RETVAL
1760		2059
1761	int	2060	int
1762	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1763	CODE:	2062	CODE:
1764	{	2063	{
1765	STRLEN svlen;	2064	STRLEN svlen;
1766	void *addr = SvPVbyte (scalar, svlen);	2065	void *addr = SvPVbyte (scalar, svlen);
1767	size_t len = SvUV (length);	2066	size_t len = SvUV (length);
1768		2067
1769	if (offset < 0)	2068	if (offset < 0)
1770	offset += svlen;	2069	offset += svlen;
1771		2070
…		…
1823	#else	2122	#else
1824	RETVAL = EIO_ENOSYS ();	2123	RETVAL = EIO_ENOSYS ();
1825	#endif	2124	#endif
1826	OUTPUT:	2125	OUTPUT:
1827	RETVAL	2126	RETVAL
		2127
		2128	int
		2129	pipesize (aio_rfd rfh, int new_size = -1)
		2130	PROTOTYPE: $;$
		2131	CODE:
		2132	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2133	if (new_size >= 0)
		2134	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2135	else
		2136	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2137	#else
		2138	errno = ENOSYS;
		2139	RETVAL = -1;
		2140	#endif
		2141	OUTPUT:
		2142	RETVAL
		2143
		2144	void
		2145	pipe2 (int flags = 0)
		2146	PROTOTYPE: ;$
		2147	PPCODE:
		2148	{
		2149	int fd[2];
		2150	int res;
		2151
		2152	if (flags)
		2153	#if HAVE_PIPE2
		2154	res = pipe2 (fd, flags);
		2155	#else
		2156	res = (errno = ENOSYS, -1);
		2157	#endif
		2158	else
		2159	res = pipe (fd);
		2160
		2161	if (!res)
		2162	{
		2163	EXTEND (SP, 2);
		2164	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2165	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2166	}
		2167	}
		2168
		2169	void
		2170	eventfd (unsigned int initval = 0, int flags = 0)
		2171	PPCODE:
		2172	{
		2173	int fd;
		2174	#if HAVE_EVENTFD
		2175	fd = eventfd (initval, flags);
		2176	#else
		2177	fd = (errno = ENOSYS, -1);
		2178	#endif
		2179
		2180	XPUSHs (newmortalFH (fd, O_RDWR));
		2181	}
		2182
		2183	UV
		2184	get_fdlimit ()
		2185	CODE:
		2186	#if HAVE_RLIMITS
		2187	struct rlimit rl;
		2188	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2189	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2190	#endif
		2191	XSRETURN_UNDEF;
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	void
		2196	min_fdlimit (UV limit = 0x7fffffffU)
		2197	CODE:
		2198	{
		2199	#if HAVE_RLIMITS
		2200	struct rlimit rl;
		2201	rlim_t orig_rlim_max;
		2202	UV bit;
		2203
		2204	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2205	goto fail;
		2206
		2207	if (rl.rlim_cur == RLIM_INFINITY)
		2208	XSRETURN_YES;
		2209
		2210	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2211
		2212	if (rl.rlim_cur < limit)
		2213	{
		2214	rl.rlim_cur = limit;
		2215
		2216	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2217	rl.rlim_max = rl.rlim_cur;
		2218	}
		2219
		2220	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2221	XSRETURN_YES;
		2222
		2223	if (errno == EPERM)
		2224	{
		2225	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2226	/* our limit overflows a system-wide limit */
		2227	/* try an adaptive algorithm, but do not lower the hardlimit */
		2228	rl.rlim_max = 0;
		2229	for (bit = 0x40000000U; bit; bit >>= 1)
		2230	{
		2231	rl.rlim_max |= bit;
		2232	rl.rlim_cur = rl.rlim_max;
		2233
		2234	/* nevr decrease the hard limit */
		2235	if (rl.rlim_max < orig_rlim_max)
		2236	break;
		2237
		2238	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2239	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2240	}
		2241
		2242	/* now, raise the soft limit to the max permitted */
		2243	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2244	{
		2245	rl.rlim_cur = rl.rlim_max;
		2246	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2247	errno = EPERM;
		2248	}
		2249	}
		2250	#endif
		2251	fail:
		2252	XSRETURN_UNDEF;
		2253	}
1828		2254
1829	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1830	CODE:	2256	CODE:
1831	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1832	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1867	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1868	CODE:	2294	CODE:
1869	eio_cancel (req);	2295	eio_cancel (req);
1870		2296
1871	void	2297	void
1872	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1873	PPCODE:	2299	PPCODE:
1874	{	2300	{
1875	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1876	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2302	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1877		2303
1878	if (items > 1)	2304	if (items > 1)
1879	{	2305	{
1880	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1881		2307
1882	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1883	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1884	}	2310	}
1885	}	2311	}
…		…
1942	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1943	CODE:	2369	CODE:
1944	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1945		2371
1946	void	2372	void
1947	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1948	CODE:	2374	CODE:
1949	{	2375	{
1950	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1951	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1952	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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