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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.216 by root, Wed Jul 25 16:12:28 2012 UTC vs.
Revision 1.254 by root, Tue Feb 20 05:23:47 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_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
104	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
107		127
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
114	STRLEN stroffset; \	134	STRLEN stroffset; \
115	SV *self;	135	SV *self;
116		136
117	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
118		138
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	139	#include "libeio/eio.h"
121		140
122	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
…		…
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	161	# endif
143	#endif	162	#endif
144		163
145	/* defines all sorts of constants to 0 unless they are already defined */	164	/* defines all sorts of constants to 0 unless they are already defined */
		165	/* also provides const_iv_ and const_niv_ macros for them */
146	#include "def0.h"	166	#include "def0.h"
147		167
148	#ifndef makedev	168	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	169	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	170	#endif
…		…
153	#endif	173	#endif
154	#ifndef minor	174	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	175	# define minor(dev) ((dev) & 0xff)
156	#endif	176	#endif
157		177
158	#ifndef PAGESIZE	178	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#define FOREIGN_MAGIC PERL_MAGIC_ext
		194
		195	static int ecb_cold
		196	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		197	{
		198	int old_errno = errno;
		199	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		200	errno = old_errno;
		201
		202	mg->mg_obj = 0; /* just in case */
		203
		204	SvREADONLY_off (sv);
		205
		206	if (SvPVX (sv) != mg->mg_ptr)
		207	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		208
		209	SvCUR_set (sv, 0);
		210	SvPVX (sv) = 0;
		211	SvOK_off (sv);
		212
		213	return 0;
		214	}
		215
		216	static MGVTBL mmap_vtbl = {
		217	0, 0, 0, 0, mmap_free
		218	};
		219
		220	static int ecb_cold
		221	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	free (mg->mg_ptr);
		224	mg->mg_obj = 0; /* just in case */
		225
		226	SvREADONLY_off (sv);
		227
		228	if (SvPVX (sv) != mg->mg_ptr)
		229	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		230
		231	SvCUR_set (sv, 0);
		232	SvPVX (sv) = 0;
		233	SvOK_off (sv);
		234
		235	return 0;
		236	}
		237
		238	static MGVTBL sysfree_vtbl = {
		239	0, 0, 0, 0, sysfree_free
		240	};
		241
		242	/*****************************************************************************/
		243
		244	/* helper: set scalar to foreign ptr with custom free */
		245	static void
		246	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		247	{
		248	sv_force_normal (sv);
		249
		250	/* we store the length in mg_obj, as namlen is I32 :/ */
		251	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		252	->mg_obj = (SV *)length;
		253
		254	SvUPGRADE (sv, SVt_PV); /* nop... */
		255
		256	if (SvLEN (sv))
		257	Safefree (SvPVX (sv));
		258
		259	SvPVX (sv) = (char *)addr;
		260	SvCUR_set (sv, length);
		261	SvLEN_set (sv, 0);
		262	SvPOK_only (sv);
		263	}
		264
		265	static void
		266	sv_clear_foreign (SV *sv)
		267	{
		268	/* todo: iterate over magic and only free ours, but of course */
		269	/* the perl5porters will call that (correct) behaviour buggy */
		270	sv_unmagic (sv, FOREIGN_MAGIC);
		271	}
161		272
162	/*****************************************************************************/	273	/*****************************************************************************/
163		274
164	static void	275	static void
165	fiemap (eio_req *req)	276	fiemap (eio_req *req)
166	{	277	{
167	req->result = -1;	278	req->result = -1;
168		279
169	#if HAVE_FIEMAP	280	#if HAVE_FIEMAP
		281	/* assume some c99 */
		282	struct fiemap *fiemap = 0;
		283	size_t end_offset;
170	int count = req->int3;	284	int count = req->int3;
171		285
172	/* heuristic: first try with 64 extents if we don't know how many, */	286	req->flags |= EIO_FLAG_PTR1_FREE;
173	/* as most files have (hopefully) fewer than this many extents */	287
174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	288	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		289	/* increase in 3.5kb steps */
175	if (count < 0)	290	if (count < 0)
176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	291	count = 8;
		292
		293	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		294	errno = ENOMEM;
		295	if (!fiemap)
		296	return;
		297
		298	req->ptr1 = fiemap;
		299
		300	fiemap->fm_start = req->offs;
		301	fiemap->fm_length = req->size;
		302	fiemap->fm_flags = req->int2;
		303	fiemap->fm_extent_count = count;
		304
		305	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		306	return;
		307
		308	if (req->int3 >= 0 /* not autosizing */
		309	|| !fiemap->fm_mapped_extents /* no more extents */
		310	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		311	goto done;
		312
		313	/* else we have to loop -
		314	* it would be tempting (actually I tried that first) to just query the
		315	* number of extents needed, but linux often feels like not returning all
		316	* extents, without telling us it left any out. this complicates
		317	* this quite a bit.
		318	*/
		319
		320	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
177		321
178	for (;;)	322	for (;;)
179	{	323	{
		324	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		325	char scratch[3072];
		326	struct fiemap *incmap = (struct fiemap *)scratch;
		327
		328	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		329	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		330	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		331	incmap->fm_flags = fiemap->fm_flags;
		332	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		335	return;
		336
		337	if (!incmap->fm_mapped_extents)
		338	goto done;
		339
		340	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	341	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181	errno = ENOMEM;	342	errno = ENOMEM;
182	if (!fiemap)	343	if (!fiemap)
183	return;	344	return;
184		345
185	req->ptr1 = fiemap;	346	req->ptr1 = fiemap;
186	req->flags |= EIO_FLAG_PTR1_FREE;
187		347
188	fiemap->fm_start = req->offs;	348	for (count = 0; count < incmap->fm_mapped_extents; ++count)
189	fiemap->fm_length = req->size;	349	{
190	fiemap->fm_flags = req->int2;	350	struct fiemap_extent *e = incmap->fm_extents + count;
191	fiemap->fm_extent_count = count;
192		351
193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	352	if (e->fe_logical + e->fe_length >= end_offset)
194	return;	353	goto done;
195		354
196	if (req->int3 >= 0)	355	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
197	break; /* when not autosizing we are done */
198		356
199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	357	if (e->fe_flags & FIEMAP_EXTENT_LAST)
200	break; /* autosizing successful, we are done */	358	goto done;
201		359
202	fiemap->fm_flags = req->int2;	360	}
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	}	361	}
212		362
		363	done:
213	req->result = 0;	364	req->result = 0;
214		365
215	#else	366	#else
216	errno = ENOSYS;	367	errno = ENOSYS;
217	#endif	368	#endif
…		…
264	}	415	}
265		416
266	static SV *	417	static SV *
267	newSVaio_wd (aio_wd wd)	418	newSVaio_wd (aio_wd wd)
268	{	419	{
269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	420	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
270	}	421	}
271		422
272	static aio_req	423	static aio_req
273	SvAIO_REQ (SV *sv)	424	SvAIO_REQ (SV *sv)
274	{	425	{
…		…
293	|| SvTYPE (SvRV (sv)) != SVt_PVMG	444	|| SvTYPE (SvRV (sv)) != SVt_PVMG
294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	445	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	446	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296		447
297	return (aio_wd)(long)SvIVX (SvRV (sv));	448	return (aio_wd)(long)SvIVX (SvRV (sv));
		449	}
		450
		451	static SV *
		452	newmortalFH (int fd, int flags)
		453	{
		454	if (fd < 0)
		455	return &PL_sv_undef;
		456
		457	GV *gv = (GV *)sv_newmortal ();
		458	char sym[64];
		459	int symlen;
		460
		461	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		462	gv_init (gv, aio_stash, sym, symlen, 0);
		463
		464	symlen = snprintf (
		465	sym,
		466	sizeof (sym),
		467	"%s&=%d",
		468	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		469	fd
		470	);
		471
		472	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		473	? (SV *)gv : &PL_sv_undef;
298	}	474	}
299		475
300	static void	476	static void
301	aio_grp_feed (aio_req grp)	477	aio_grp_feed (aio_req grp)
302	{	478	{
…		…
430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	606	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
431	}	607	}
432	break;	608	break;
433		609
434	case EIO_OPEN:	610	case EIO_OPEN:
435	{	611	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;	612	break;
464		613
465	case EIO_STATVFS:	614	case EIO_STATVFS:
466	case EIO_FSTATVFS:	615	case EIO_FSTATVFS:
467	{	616	{
…		…
470	#ifndef _WIN32	619	#ifndef _WIN32
471	if (req->result >= 0)	620	if (req->result >= 0)
472	{	621	{
473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	622	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474	HV *hv = newHV ();	623	HV *hv = newHV ();
		624	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		625	* chooses to make it a struct.
		626	*/
		627	unsigned long fsid = 0;
		628	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
475		629
476	rv = sv_2mortal (newRV_noinc ((SV *)hv));	630	rv = sv_2mortal (newRV_noinc ((SV *)hv));
477		631
478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	632	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);	633	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);	635	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);	636	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);	637	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);	638	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);	639	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);	640	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	641	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);	642	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489	}	643	}
490	#endif	644	#endif
491		645
…		…
542	SvSETMAGIC (req->sv2);	696	SvSETMAGIC (req->sv2);
543	PUSHs (sv_result);	697	PUSHs (sv_result);
544	}	698	}
545	break;	699	break;
546		700
		701	case EIO_SLURP:
		702	{
		703	if (req->result >= 0)
		704	{
		705	/* if length was originally not known, we steal the malloc'ed memory */
		706	if (req->flags & EIO_FLAG_PTR2_FREE)
		707	{
		708	req->flags &= ~EIO_FLAG_PTR2_FREE;
		709	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		710	}
		711	else
		712	{
		713	SvCUR_set (req->sv2, req->result);
		714	*SvEND (req->sv2) = 0;
		715	SvPOK_only (req->sv2);
		716	}
		717
		718	SvSETMAGIC (req->sv2);
		719	}
		720
		721	PUSHs (sv_result);
		722	}
		723	break;
		724
547	case EIO_CUSTOM:	725	case EIO_CUSTOM:
548	if (req->feed == fiemap)	726	if (req->feed == fiemap)
549	{	727	{
550	#if HAVE_FIEMAP	728	#if HAVE_FIEMAP
551	if (!req->result)	729	if (!req->result)
…		…
656	{	834	{
657	while (eio_nreqs ())	835	while (eio_nreqs ())
658	{	836	{
659	int size;	837	int size;
660		838
661	X_LOCK (reslock);	839	X_LOCK (EIO_POOL->reslock);
662	size = res_queue.size;	840	size = EIO_POOL->res_queue.size;
663	X_UNLOCK (reslock);	841	X_UNLOCK (EIO_POOL->reslock);
664		842
665	if (size)	843	if (size)
666	return;	844	return;
667		845
668	etp_maybe_start_thread ();	846	etp_maybe_start_thread (EIO_POOL);
669		847
670	s_epipe_wait (&respipe);	848	s_epipe_wait (&respipe);
671	}	849	}
672	}	850	}
673		851
…		…
694	create_respipe ();	872	create_respipe ();
695		873
696	if (eio_init (want_poll, done_poll) < 0)	874	if (eio_init (want_poll, done_poll) < 0)
697	croak ("IO::AIO: unable to initialise eio library");	875	croak ("IO::AIO: unable to initialise eio library");
698	}	876	}
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		877
743	/*****************************************************************************/	878	/*****************************************************************************/
744		879
745	static SV *	880	static SV *
746	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
…		…
842	req_set_path1 (req, fh_or_path);	977	req_set_path1 (req, fh_or_path);
843	break;	978	break;
844	}	979	}
845	}	980	}
846		981
		982	/*****************************************************************************/
		983
		984	static void
		985	ts_set (struct timespec *ts, NV value)
		986	{
		987	ts->tv_sec = value;
		988	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		989	}
		990
		991	static NV
		992	ts_get (const struct timespec *ts)
		993	{
		994	return ts->tv_sec + ts->tv_nsec * 1e-9;
		995	}
		996
		997	/*****************************************************************************/
		998
847	XS(boot_IO__AIO) ecb_cold;	999	XS(boot_IO__AIO) ecb_cold;
848		1000
849	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
850		1002
851	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
…		…
858	} *civ, const_iv[] = {	1010	} *civ, const_iv[] = {
859	# define const_niv(name, value) { # name, (IV) value },	1011	# define const_niv(name, value) { # name, (IV) value },
860	# define const_iv(name) { # name, (IV) name },	1012	# define const_iv(name) { # name, (IV) name },
861	# define const_eio(name) { # name, (IV) EIO_ ## name },	1013	# define const_eio(name) { # name, (IV) EIO_ ## name },
862		1014
863	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1015	/* you have to re-run ./gendef0 after adding/removing any constants here */
864		1016	/* the first block can be undef if missing */
865	const_iv (ENOSYS)	1017	const_iv (ENOSYS)
866	const_iv (EXDEV)	1018	const_iv (EXDEV)
867	const_iv (EBADR)	1019	const_iv (EBADR)
868		1020
		1021	/* for lseek */
		1022	const_iv (SEEK_DATA)
		1023	const_iv (SEEK_HOLE)
		1024
		1025	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1026	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1027	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1028	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1029	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1030	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1031
		1032	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1033	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1034	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1035	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1036	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1037
		1038	/* the second block will be 0 when missing */
869	const_iv (O_RDONLY)	1039	const_iv (O_RDONLY)
870	const_iv (O_WRONLY)	1040	const_iv (O_WRONLY)
871	const_iv (O_RDWR)	1041	const_iv (O_RDWR)
872	const_iv (O_CREAT)	1042	const_iv (O_CREAT)
873	const_iv (O_TRUNC)	1043	const_iv (O_TRUNC)
…		…
886	const_iv (O_SEARCH)	1056	const_iv (O_SEARCH)
887	const_iv (O_DIRECTORY)	1057	const_iv (O_DIRECTORY)
888	const_iv (O_DSYNC)	1058	const_iv (O_DSYNC)
889	const_iv (O_RSYNC)	1059	const_iv (O_RSYNC)
890	const_iv (O_SYNC)	1060	const_iv (O_SYNC)
		1061	const_iv (O_PATH)
		1062	const_iv (O_TMPFILE)
891	const_iv (O_TTY_INIT)	1063	const_iv (O_TTY_INIT)
892		1064
893	const_iv (S_IFIFO)	1065	const_iv (S_IFIFO)
894	const_iv (S_IFCHR)	1066	const_iv (S_IFCHR)
895	const_iv (S_IFBLK)	1067	const_iv (S_IFBLK)
…		…
897	const_iv (S_IFREG)	1069	const_iv (S_IFREG)
898	const_iv (S_IFDIR)	1070	const_iv (S_IFDIR)
899	const_iv (S_IFWHT)	1071	const_iv (S_IFWHT)
900	const_iv (S_IFSOCK)	1072	const_iv (S_IFSOCK)
901	const_iv (S_IFMT)	1073	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		1074
916	const_iv (ST_RDONLY)	1075	const_iv (ST_RDONLY)
917	const_iv (ST_NOSUID)	1076	const_iv (ST_NOSUID)
918	const_iv (ST_NODEV)	1077	const_iv (ST_NODEV)
919	const_iv (ST_NOEXEC)	1078	const_iv (ST_NOEXEC)
…		…
929	const_iv (PROT_NONE)	1088	const_iv (PROT_NONE)
930	const_iv (PROT_EXEC)	1089	const_iv (PROT_EXEC)
931	const_iv (PROT_READ)	1090	const_iv (PROT_READ)
932	const_iv (PROT_WRITE)	1091	const_iv (PROT_WRITE)
933		1092
934	/*const_iv (MAP_FIXED)*/
935	const_iv (MAP_PRIVATE)	1093	const_iv (MAP_PRIVATE)
936	const_iv (MAP_SHARED)	1094	const_iv (MAP_SHARED)
		1095	const_iv (MAP_FIXED)
937	const_iv (MAP_ANONYMOUS)	1096	const_iv (MAP_ANONYMOUS)
938		1097
939	/* linuxish */	1098	/* linuxish */
940	const_iv (MAP_HUGETLB)
941	const_iv (MAP_LOCKED)	1099	const_iv (MAP_LOCKED)
942	const_iv (MAP_NORESERVE)	1100	const_iv (MAP_NORESERVE)
943	const_iv (MAP_POPULATE)	1101	const_iv (MAP_POPULATE)
944	const_iv (MAP_NONBLOCK)	1102	const_iv (MAP_NONBLOCK)
		1103	const_iv (MAP_GROWSDOWN)
		1104	const_iv (MAP_32BIT)
		1105	const_iv (MAP_HUGETLB)
		1106	const_iv (MAP_STACK)
		1107
		1108	const_iv (F_DUPFD_CLOEXEC)
		1109
		1110	const_iv (F_OFD_GETLK)
		1111	const_iv (F_OFD_SETLK)
		1112	const_iv (F_OFD_GETLKW)
		1113
		1114	const_iv (FIFREEZE)
		1115	const_iv (FITHAW)
		1116	const_iv (FITRIM)
		1117	const_iv (FICLONE)
		1118	const_iv (FICLONERANGE)
		1119	const_iv (FIDEDUPERANGE)
		1120
		1121	const_iv (FS_IOC_GETFLAGS)
		1122	const_iv (FS_IOC_SETFLAGS)
		1123	const_iv (FS_IOC_GETVERSION)
		1124	const_iv (FS_IOC_SETVERSION)
		1125	const_iv (FS_IOC_FIEMAP)
		1126	const_iv (FS_IOC_FSGETXATTR)
		1127	const_iv (FS_IOC_FSSETXATTR)
		1128	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1129	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1130	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1131
		1132	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1133
		1134	const_iv (FS_SECRM_FL)
		1135	const_iv (FS_UNRM_FL)
		1136	const_iv (FS_COMPR_FL)
		1137	const_iv (FS_SYNC_FL)
		1138	const_iv (FS_IMMUTABLE_FL)
		1139	const_iv (FS_APPEND_FL)
		1140	const_iv (FS_NODUMP_FL)
		1141	const_iv (FS_NOATIME_FL)
		1142	const_iv (FS_DIRTY_FL)
		1143	const_iv (FS_COMPRBLK_FL)
		1144	const_iv (FS_NOCOMP_FL)
		1145	const_iv (FS_ENCRYPT_FL)
		1146	const_iv (FS_BTREE_FL)
		1147	const_iv (FS_INDEX_FL)
		1148	const_iv (FS_JOURNAL_DATA_FL)
		1149	const_iv (FS_NOTAIL_FL)
		1150	const_iv (FS_DIRSYNC_FL)
		1151	const_iv (FS_TOPDIR_FL)
		1152	const_iv (FS_FL_USER_MODIFIABLE)
		1153
		1154	const_iv (FS_XFLAG_REALTIME)
		1155	const_iv (FS_XFLAG_PREALLOC)
		1156	const_iv (FS_XFLAG_IMMUTABLE)
		1157	const_iv (FS_XFLAG_APPEND)
		1158	const_iv (FS_XFLAG_SYNC)
		1159	const_iv (FS_XFLAG_NOATIME)
		1160	const_iv (FS_XFLAG_NODUMP)
		1161	const_iv (FS_XFLAG_RTINHERIT)
		1162	const_iv (FS_XFLAG_PROJINHERIT)
		1163	const_iv (FS_XFLAG_NOSYMLINKS)
		1164	const_iv (FS_XFLAG_EXTSIZE)
		1165	const_iv (FS_XFLAG_EXTSZINHERIT)
		1166	const_iv (FS_XFLAG_NODEFRAG)
		1167	const_iv (FS_XFLAG_FILESTREAM)
		1168	const_iv (FS_XFLAG_DAX)
		1169	const_iv (FS_XFLAG_HASATTR)
945		1170
946	const_iv (FIEMAP_FLAG_SYNC)	1171	const_iv (FIEMAP_FLAG_SYNC)
947	const_iv (FIEMAP_FLAG_XATTR)	1172	const_iv (FIEMAP_FLAG_XATTR)
948	const_iv (FIEMAP_FLAGS_COMPAT)	1173	const_iv (FIEMAP_FLAGS_COMPAT)
949	const_iv (FIEMAP_EXTENT_LAST)	1174	const_iv (FIEMAP_EXTENT_LAST)
…		…
961	const_iv (SPLICE_F_MOVE)	1186	const_iv (SPLICE_F_MOVE)
962	const_iv (SPLICE_F_NONBLOCK)	1187	const_iv (SPLICE_F_NONBLOCK)
963	const_iv (SPLICE_F_MORE)	1188	const_iv (SPLICE_F_MORE)
964	const_iv (SPLICE_F_GIFT)	1189	const_iv (SPLICE_F_GIFT)
965		1190
966	const_iv (SEEK_DATA)	1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
967	const_iv (SEEK_HOLE)	1193	const_iv (EFD_SEMAPHORE)
968		1194
969	/* libeio constants */	1195	const_iv (CLOCK_REALTIME)
		1196	const_iv (CLOCK_MONOTONIC)
		1197	const_iv (CLOCK_BOOTTIME)
		1198	const_iv (CLOCK_REALTIME_ALARM)
		1199	const_iv (CLOCK_BOOTTIME_ALARM)
		1200
		1201	const_iv (TFD_NONBLOCK)
		1202	const_iv (TFD_CLOEXEC)
		1203
		1204	const_iv (TFD_TIMER_ABSTIME)
		1205	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1206
		1207	/* these are libeio constants, and are independent of gendef0 */
970	const_eio (SEEK_SET)	1208	const_eio (SEEK_SET)
971	const_eio (SEEK_CUR)	1209	const_eio (SEEK_CUR)
972	const_eio (SEEK_END)	1210	const_eio (SEEK_END)
973		1211
974	const_eio (MCL_FUTURE)	1212	const_eio (MCL_FUTURE)
…		…
984	const_eio (SYNC_FILE_RANGE_WRITE)	1222	const_eio (SYNC_FILE_RANGE_WRITE)
985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1223	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
986		1224
987	const_eio (FALLOC_FL_KEEP_SIZE)	1225	const_eio (FALLOC_FL_KEEP_SIZE)
988	const_eio (FALLOC_FL_PUNCH_HOLE)	1226	const_eio (FALLOC_FL_PUNCH_HOLE)
		1227	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1228	const_eio (FALLOC_FL_ZERO_RANGE)
		1229	const_eio (FALLOC_FL_INSERT_RANGE)
		1230	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1231
		1232	const_eio (RENAME_NOREPLACE)
		1233	const_eio (RENAME_EXCHANGE)
		1234	const_eio (RENAME_WHITEOUT)
989		1235
990	const_eio (READDIR_DENTS)	1236	const_eio (READDIR_DENTS)
991	const_eio (READDIR_DIRS_FIRST)	1237	const_eio (READDIR_DIRS_FIRST)
992	const_eio (READDIR_STAT_ORDER)	1238	const_eio (READDIR_STAT_ORDER)
993	const_eio (READDIR_FOUND_UNKNOWN)	1239	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1061	PROTOTYPE: $	1307	PROTOTYPE: $
1062	CODE:	1308	CODE:
1063	max_outstanding = maxreqs;	1309	max_outstanding = maxreqs;
1064		1310
1065	void	1311	void
1066	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1312	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1067	PPCODE:	1313	PPCODE:
1068	{	1314	{
1069	dREQ;	1315	dREQ;
1070		1316
1071	req->type = EIO_WD_OPEN;	1317	req->type = EIO_WD_OPEN;
…		…
1073		1319
1074	REQ_SEND;	1320	REQ_SEND;
1075	}	1321	}
1076		1322
1077	void	1323	void
1078	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1324	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1079	PPCODE:	1325	PPCODE:
1080	{	1326	{
1081	dREQ;	1327	dREQ;
1082		1328
1083	req->type = EIO_OPEN;	1329	req->type = EIO_OPEN;
…		…
1087		1333
1088	REQ_SEND;	1334	REQ_SEND;
1089	}	1335	}
1090		1336
1091	void	1337	void
1092	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1338	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1093	ALIAS:	1339	ALIAS:
1094	aio_fsync = EIO_FSYNC	1340	aio_fsync = EIO_FSYNC
1095	aio_fdatasync = EIO_FDATASYNC	1341	aio_fdatasync = EIO_FDATASYNC
1096	aio_syncfs = EIO_SYNCFS	1342	aio_syncfs = EIO_SYNCFS
1097	PPCODE:	1343	PPCODE:
1098	{	1344	{
1099	int fd = s_fileno_croak (fh, 0);	1345	int fd = s_fileno_croak (fh, 0);
1100	dREQ;	1346	dREQ;
1101		1347
1102	req->type = ix;	1348	req->type = ix;
1103	req->sv1 = newSVsv (fh);	1349	req->sv1 = newSVsv (fh);
1104	req->int1 = fd;	1350	req->int1 = fd;
1105		1351
1106	REQ_SEND;	1352	REQ_SEND;
1107	}	1353	}
1108		1354
1109	void	1355	void
1110	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1356	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1111	PPCODE:	1357	PPCODE:
1112	{	1358	{
1113	int fd = s_fileno_croak (fh, 0);	1359	int fd = s_fileno_croak (fh, 0);
1114	dREQ;	1360	dREQ;
1115		1361
1116	req->type = EIO_SYNC_FILE_RANGE;	1362	req->type = EIO_SYNC_FILE_RANGE;
1117	req->sv1 = newSVsv (fh);	1363	req->sv1 = newSVsv (fh);
1118	req->int1 = fd;	1364	req->int1 = fd;
…		…
1122		1368
1123	REQ_SEND;	1369	REQ_SEND;
1124	}	1370	}
1125		1371
1126	void	1372	void
1127	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1373	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1128	PPCODE:	1374	PPCODE:
1129	{	1375	{
1130	int fd = s_fileno_croak (fh, 0);	1376	int fd = s_fileno_croak (fh, 0);
1131	dREQ;	1377	dREQ;
1132		1378
1133	req->type = EIO_FALLOCATE;	1379	req->type = EIO_FALLOCATE;
1134	req->sv1 = newSVsv (fh);	1380	req->sv1 = newSVsv (fh);
1135	req->int1 = fd;	1381	req->int1 = fd;
…		…
1139		1385
1140	REQ_SEND;	1386	REQ_SEND;
1141	}	1387	}
1142		1388
1143	void	1389	void
1144	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1390	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1145	PPCODE:	1391	PPCODE:
1146	{	1392	{
1147	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1393	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1148	int fd = s_fileno_croak (fh, 0);	1394	int fd = s_fileno_croak (fh, 0);
1149	dREQ;	1395	dREQ;
1150		1396
1151	if (expect_false (close_fd < 0))	1397	if (expect_false (close_fd < 0))
1152	{	1398	{
1153	int pipefd [2];	1399	int pipefd [2];
…		…
1173		1419
1174	REQ_SEND;	1420	REQ_SEND;
1175	}	1421	}
1176		1422
1177	void	1423	void
1178	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1424	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1179	PPCODE:	1425	PPCODE:
1180	{	1426	{
1181	int fd = s_fileno_croak (fh, 0);	1427	int fd = s_fileno_croak (fh, 0);
1182	dREQ;	1428	dREQ;
1183		1429
…		…
1189		1435
1190	REQ_SEND;	1436	REQ_SEND;
1191	}	1437	}
1192		1438
1193	void	1439	void
1194	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1440	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1195	ALIAS:	1441	ALIAS:
1196	aio_read = EIO_READ	1442	aio_read = EIO_READ
1197	aio_write = EIO_WRITE	1443	aio_write = EIO_WRITE
1198	PPCODE:	1444	PPCODE:
1199	{	1445	{
…		…
1215	len = svlen - dataoffset;	1461	len = svlen - dataoffset;
1216	}	1462	}
1217	else	1463	else
1218	{	1464	{
1219	/* read: check type and grow scalar as necessary */	1465	/* read: check type and grow scalar as necessary */
1220	SvUPGRADE (data, SVt_PV);
1221	if (SvLEN (data) >= SvCUR (data))	1466	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1222	svptr = SvGROW (data, len + dataoffset + 1);	1467	svptr = sv_grow (data, len + dataoffset + 1);
1223	else if (SvCUR (data) < len + dataoffset)	1468	else if (SvCUR (data) < len + dataoffset)
1224	croak ("length + dataoffset outside of scalar, and cannot grow");	1469	croak ("length + dataoffset outside of scalar, and cannot grow");
1225	}	1470	}
1226		1471
1227	{	1472	{
…		…
1245	REQ_SEND;	1490	REQ_SEND;
1246	}	1491	}
1247	}	1492	}
1248		1493
1249	void	1494	void
		1495	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1496	ALIAS:
		1497	aio_ioctl = EIO_IOCTL
		1498	aio_fcntl = EIO_FCNTL
		1499	PPCODE:
		1500	{
		1501	int fd = s_fileno_croak (fh, 0);
		1502	char *svptr;
		1503
		1504	if (SvPOK (arg) || !SvNIOK (arg))
		1505	{
		1506	STRLEN svlen;
		1507	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1508	#ifdef IOCPARM_LEN
		1509	STRLEN need = IOCPARM_LEN (request);
		1510	#else
		1511	STRLEN need = 256;
		1512	#endif
		1513
		1514	if (svlen < need)
		1515	svptr = SvGROW (arg, need);
		1516	}
		1517	else
		1518	svptr = (char *)SvIV (arg);
		1519
		1520	{
		1521	dREQ;
		1522
		1523	req->type = ix;
		1524	req->sv1 = newSVsv (fh);
		1525	req->int1 = fd;
		1526	req->int2 = (long)request;
		1527	req->sv2 = SvREFCNT_inc (arg);
		1528	req->ptr2 = svptr;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
1250	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1535	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1251	ALIAS:	1536	ALIAS:
1252	aio_readlink = EIO_READLINK	1537	aio_readlink = EIO_READLINK
1253	aio_realpath = EIO_REALPATH	1538	aio_realpath = EIO_REALPATH
1254	PPCODE:	1539	PPCODE:
1255	{	1540	{
…		…
1260		1545
1261	REQ_SEND;	1546	REQ_SEND;
1262	}	1547	}
1263		1548
1264	void	1549	void
1265	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1550	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1266	PPCODE:	1551	PPCODE:
1267	{	1552	{
1268	int ifd = s_fileno_croak (in_fh , 0);	1553	int ifd = s_fileno_croak (in_fh , 0);
1269	int ofd = s_fileno_croak (out_fh, 1);	1554	int ofd = s_fileno_croak (out_fh, 1);
1270	dREQ;	1555	dREQ;
1271		1556
1272	req->type = EIO_SENDFILE;	1557	req->type = EIO_SENDFILE;
1273	req->sv1 = newSVsv (out_fh);	1558	req->sv1 = newSVsv (out_fh);
1274	req->int1 = ofd;	1559	req->int1 = ofd;
…		…
1279		1564
1280	REQ_SEND;	1565	REQ_SEND;
1281	}	1566	}
1282		1567
1283	void	1568	void
1284	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1285	PPCODE:	1570	PPCODE:
1286	{	1571	{
1287	int fd = s_fileno_croak (fh, 0);	1572	int fd = s_fileno_croak (fh, 0);
1288	dREQ;	1573	dREQ;
1289		1574
1290	req->type = EIO_READAHEAD;	1575	req->type = EIO_READAHEAD;
1291	req->sv1 = newSVsv (fh);	1576	req->sv1 = newSVsv (fh);
1292	req->int1 = fd;	1577	req->int1 = fd;
…		…
1295		1580
1296	REQ_SEND;	1581	REQ_SEND;
1297	}	1582	}
1298		1583
1299	void	1584	void
1300	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1585	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1301	ALIAS:	1586	ALIAS:
1302	aio_stat = EIO_STAT	1587	aio_stat = EIO_STAT
1303	aio_lstat = EIO_LSTAT	1588	aio_lstat = EIO_LSTAT
1304	aio_statvfs = EIO_STATVFS	1589	aio_statvfs = EIO_STATVFS
1305	PPCODE:	1590	PPCODE:
…		…
1314	UV	1599	UV
1315	major (UV dev)	1600	major (UV dev)
1316	ALIAS:	1601	ALIAS:
1317	minor = 1	1602	minor = 1
1318	CODE:	1603	CODE:
1319	RETVAL = ix ? major (dev) : minor (dev);	1604	RETVAL = ix ? minor (dev) : major (dev);
1320	OUTPUT:	1605	OUTPUT:
1321	RETVAL	1606	RETVAL
1322		1607
1323	UV	1608	UV
1324	makedev (UV maj, UV min)	1609	makedev (UV maj, UV min)
…		…
1326	RETVAL = makedev (maj, min);	1611	RETVAL = makedev (maj, min);
1327	OUTPUT:	1612	OUTPUT:
1328	RETVAL	1613	RETVAL
1329		1614
1330	void	1615	void
1331	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1616	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1332	PPCODE:	1617	PPCODE:
1333	{	1618	{
1334	dREQ;	1619	dREQ;
1335		1620
1336	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1621	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1339		1624
1340	REQ_SEND;	1625	REQ_SEND;
1341	}	1626	}
1342		1627
1343	void	1628	void
1344	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1629	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1345	PPCODE:	1630	PPCODE:
1346	{	1631	{
1347	dREQ;	1632	dREQ;
1348		1633
1349	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1351		1636
1352	REQ_SEND;	1637	REQ_SEND;
1353	}	1638	}
1354		1639
1355	void	1640	void
1356	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1641	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1357	PPCODE:	1642	PPCODE:
1358	{	1643	{
1359	dREQ;	1644	dREQ;
1360		1645
1361	req->int2 = mode;	1646	req->int2 = mode;
…		…
1363		1648
1364	REQ_SEND;	1649	REQ_SEND;
1365	}	1650	}
1366		1651
1367	void	1652	void
1368	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1653	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1369	PPCODE:	1654	PPCODE:
1370	{	1655	{
1371	dREQ;	1656	dREQ;
1372		1657
1373	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1658	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1376		1661
1377	REQ_SEND;	1662	REQ_SEND;
1378	}	1663	}
1379		1664
1380	void	1665	void
1381	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1666	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1382	PPCODE:	1667	PPCODE:
1383	{	1668	{
1384	dREQ;	1669	dREQ;
1385		1670
1386	req->type = EIO_READDIR;	1671	req->type = EIO_READDIR;
…		…
1393		1678
1394	REQ_SEND;	1679	REQ_SEND;
1395	}	1680	}
1396		1681
1397	void	1682	void
1398	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1683	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1399	PPCODE:	1684	PPCODE:
1400	{	1685	{
1401	dREQ;	1686	dREQ;
1402		1687
1403	req->type = EIO_MKDIR;	1688	req->type = EIO_MKDIR;
…		…
1406		1691
1407	REQ_SEND;	1692	REQ_SEND;
1408	}	1693	}
1409		1694
1410	void	1695	void
1411	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1696	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1412	ALIAS:	1697	ALIAS:
1413	aio_unlink = EIO_UNLINK	1698	aio_unlink = EIO_UNLINK
1414	aio_rmdir = EIO_RMDIR	1699	aio_rmdir = EIO_RMDIR
1415	aio_readdir = EIO_READDIR	1700	aio_readdir = EIO_READDIR
1416	PPCODE:	1701	PPCODE:
…		…
1422		1707
1423	REQ_SEND;	1708	REQ_SEND;
1424	}	1709	}
1425		1710
1426	void	1711	void
1427	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1712	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1428	ALIAS:	1713	ALIAS:
1429	aio_link = EIO_LINK	1714	aio_link = EIO_LINK
1430	aio_symlink = EIO_SYMLINK	1715	aio_symlink = EIO_SYMLINK
1431	aio_rename = EIO_RENAME	1716	aio_rename = EIO_RENAME
1432	PPCODE:	1717	PPCODE:
…		…
1441		1726
1442	REQ_SEND;	1727	REQ_SEND;
1443	}	1728	}
1444		1729
1445	void	1730	void
		1731	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	eio_wd wd2 = 0;
		1735	dREQ;
		1736
		1737	req->type = EIO_RENAME;
		1738	req_set_path1 (req, oldpath);
		1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1740	req->int2 = flags;
		1741	req->int3 = (long)wd2;
		1742
		1743	REQ_SEND;
		1744	}
		1745
		1746	void
1446	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1747	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1447	PPCODE:	1748	PPCODE:
1448	{	1749	{
1449	dREQ;	1750	dREQ;
1450		1751
1451	req->type = EIO_MKNOD;	1752	req->type = EIO_MKNOD;
…		…
1455		1756
1456	REQ_SEND;	1757	REQ_SEND;
1457	}	1758	}
1458		1759
1459	void	1760	void
1460	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1761	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1461	ALIAS:	1762	ALIAS:
1462	aio_mtouch = EIO_MTOUCH	1763	aio_mtouch = EIO_MTOUCH
1463	aio_msync = EIO_MSYNC	1764	aio_msync = EIO_MSYNC
1464	PPCODE:	1765	PPCODE:
1465	{	1766	{
1466	STRLEN svlen;	1767	STRLEN svlen;
1467	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1468	UV len = SvUV (length);	1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1469		1773
1470	if (offset < 0)	1774	if (offset < 0)
1471	offset += svlen;	1775	offset += svlen;
1472		1776
1473	if (offset < 0 || offset > svlen)	1777	if (offset < 0 || offset > svlen)
…		…
1488	REQ_SEND;	1792	REQ_SEND;
1489	}	1793	}
1490	}	1794	}
1491		1795
1492	void	1796	void
1493	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1797	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1494	PPCODE:	1798	PPCODE:
1495	{	1799	{
1496	STRLEN svlen;	1800	STRLEN svlen;
1497	char *svptr = SvPVbyte (data, svlen);	1801	char *svptr = SvPVbyte (data, svlen);
1498	UV len = SvUV (length);	1802	UV len = SvUV (length);
…		…
1517	REQ_SEND;	1821	REQ_SEND;
1518	}	1822	}
1519	}	1823	}
1520		1824
1521	void	1825	void
1522	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1826	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1523	PPCODE:	1827	PPCODE:
1524	{	1828	{
1525	dREQ;	1829	dREQ;
1526		1830
1527	req->type = EIO_MLOCKALL;	1831	req->type = EIO_MLOCKALL;
…		…
1529		1833
1530	REQ_SEND;	1834	REQ_SEND;
1531	}	1835	}
1532		1836
1533	void	1837	void
1534	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1838	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1535	PPCODE:	1839	PPCODE:
1536	{	1840	{
1537	int fd = s_fileno_croak (fh, 0);	1841	int fd = s_fileno_croak (fh, 0);
1538	dREQ;	1842	dREQ;
1539		1843
1540	req->type = EIO_CUSTOM;	1844	req->type = EIO_CUSTOM;
1541	req->sv1 = newSVsv (fh);	1845	req->sv1 = newSVsv (fh);
1542	req->int1 = fd;	1846	req->int1 = fd;
…		…
1552		1856
1553	REQ_SEND;	1857	REQ_SEND;
1554	}	1858	}
1555		1859
1556	void	1860	void
		1861	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1862	PPCODE:
		1863	{
		1864	char *svptr = 0;
		1865
		1866	sv_clear_foreign (data);
		1867
		1868	if (length) /* known length, directly read into scalar */
		1869	{
		1870	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1871	svptr = sv_grow (data, length + 1);
		1872	else if (SvCUR (data) < length)
		1873	croak ("length outside of scalar, and cannot grow");
		1874	else
		1875	svptr = SvPVbyte_nolen (data);
		1876	}
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_SLURP;
		1882	req_set_path1 (req, pathname);
		1883	req->offs = offset;
		1884	req->size = length;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = svptr;
		1887
		1888	if (!SvREADONLY (data))
		1889	{
		1890	SvREADONLY_on (data);
		1891	req->flags |= FLAG_SV2_RO_OFF;
		1892	}
		1893
		1894	REQ_SEND;
		1895	}
		1896	}
		1897
		1898	void
1557	aio_busy (double delay, SV *callback=&PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
1558	PPCODE:	1900	PPCODE:
1559	{	1901	{
1560	dREQ;	1902	dREQ;
1561		1903
1562	req->type = EIO_BUSY;	1904	req->type = EIO_BUSY;
…		…
1564		1906
1565	REQ_SEND;	1907	REQ_SEND;
1566	}	1908	}
1567		1909
1568	void	1910	void
1569	aio_group (SV *callback=&PL_sv_undef)	1911	aio_group (SV *callback = &PL_sv_undef)
1570	PPCODE:	1912	PPCODE:
1571	{	1913	{
1572	dREQ;	1914	dREQ;
1573		1915
1574	req->type = EIO_GROUP;	1916	req->type = EIO_GROUP;
1575		1917
		1918	PUTBACK;
1576	req_submit (req);	1919	req_submit (req);
		1920	SPAGAIN;
		1921
1577	XPUSHs (req_sv (req, aio_grp_stash));	1922	XPUSHs (req_sv (req, aio_grp_stash));
1578	}	1923	}
1579		1924
1580	void	1925	void
1581	aio_nop (SV *callback=&PL_sv_undef)	1926	aio_nop (SV *callback = &PL_sv_undef)
1582	ALIAS:	1927	ALIAS:
1583	aio_nop = EIO_NOP	1928	aio_nop = EIO_NOP
1584	aio_sync = EIO_SYNC	1929	aio_sync = EIO_SYNC
1585	PPCODE:	1930	PPCODE:
1586	{	1931	{
…		…
1590		1935
1591	REQ_SEND;	1936	REQ_SEND;
1592	}	1937	}
1593		1938
1594	int	1939	int
1595	aioreq_pri (int pri = 0)	1940	aioreq_pri (int pri = NO_INIT)
1596	CODE:	1941	CODE:
1597	RETVAL = next_pri;	1942	RETVAL = next_pri;
1598	if (items > 0)	1943	if (items > 0)
1599	{	1944	{
1600	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1945	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1690	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2035	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1691	OUTPUT:	2036	OUTPUT:
1692	RETVAL	2037	RETVAL
1693		2038
1694	void	2039	void
1695	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2040	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1696	PPCODE:	2041	PPCODE:
1697	sv_unmagic (scalar, MMAP_MAGIC);	2042	sv_clear_foreign (scalar);
1698	{	2043	{
1699	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2044	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1700	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2045	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1701	if (addr == (void *)-1)	2046	if (addr == (void *)-1)
1702	XSRETURN_NO;	2047	XSRETURN_NO;
1703		2048
1704	sv_force_normal (scalar);	2049	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1705
1706	/* we store the length in mg_obj, as namlen is I32 :/ */
1707	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1708	->mg_obj = (SV *)length;
1709
1710	SvUPGRADE (scalar, SVt_PV); /* nop... */
1711		2050
1712	if (!(prot & PROT_WRITE))	2051	if (!(prot & PROT_WRITE))
1713	SvREADONLY_on (scalar);	2052	SvREADONLY_on (scalar);
1714		2053
1715	if (SvLEN (scalar))
1716	Safefree (SvPVX (scalar));
1717
1718	SvPVX (scalar) = (char *)addr;
1719	SvCUR_set (scalar, length);
1720	SvLEN_set (scalar, 0);
1721	SvPOK_only (scalar);
1722
1723	XSRETURN_YES;	2054	XSRETURN_YES;
1724	}	2055	}
1725		2056
1726	void	2057	void
1727	munmap (SV *scalar)	2058	munmap (SV *scalar)
1728	CODE:	2059	CODE:
1729	sv_unmagic (scalar, MMAP_MAGIC);	2060	sv_clear_foreign (scalar);
1730		2061
1731	int	2062	int
1732	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2063	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1733	ALIAS:	2064	ALIAS:
1734	mprotect = 1	2065	mprotect = 1
1735	CODE:	2066	CODE:
1736	{	2067	{
1737	STRLEN svlen;	2068	STRLEN svlen;
1738	void *addr = SvPVbyte (scalar, svlen);	2069	void *addr = SvPVbyte (scalar, svlen);
1739	size_t len = SvUV (length);	2070	STRLEN len = SvUV (length);
1740		2071
1741	if (offset < 0)	2072	if (offset < 0)
1742	offset += svlen;	2073	offset += svlen;
1743		2074
1744	if (offset < 0 || offset > svlen)	2075	if (offset < 0 || offset > svlen)
…		…
1758	}	2089	}
1759	OUTPUT:	2090	OUTPUT:
1760	RETVAL	2091	RETVAL
1761		2092
1762	int	2093	int
1763	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2094	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1764	CODE:	2095	CODE:
1765	{	2096	{
1766	STRLEN svlen;	2097	STRLEN svlen;
1767	void *addr = SvPVbyte (scalar, svlen);	2098	void *addr = SvPVbyte (scalar, svlen);
1768	size_t len = SvUV (length);	2099	size_t len = SvUV (length);
1769		2100
1770	if (offset < 0)	2101	if (offset < 0)
1771	offset += svlen;	2102	offset += svlen;
1772		2103
…		…
1824	#else	2155	#else
1825	RETVAL = EIO_ENOSYS ();	2156	RETVAL = EIO_ENOSYS ();
1826	#endif	2157	#endif
1827	OUTPUT:	2158	OUTPUT:
1828	RETVAL	2159	RETVAL
		2160
		2161	int
		2162	pipesize (aio_rfd rfh, int new_size = -1)
		2163	PROTOTYPE: $;$
		2164	CODE:
		2165	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2166	if (new_size >= 0)
		2167	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2168	else
		2169	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2170	#else
		2171	errno = ENOSYS;
		2172	RETVAL = -1;
		2173	#endif
		2174	OUTPUT:
		2175	RETVAL
		2176
		2177	void
		2178	pipe2 (int flags = 0)
		2179	PROTOTYPE: ;$
		2180	PPCODE:
		2181	{
		2182	int fd[2];
		2183	int res;
		2184
		2185	if (flags)
		2186	#if HAVE_PIPE2
		2187	res = pipe2 (fd, flags);
		2188	#else
		2189	res = (errno = ENOSYS, -1);
		2190	#endif
		2191	else
		2192	res = pipe (fd);
		2193
		2194	if (!res)
		2195	{
		2196	EXTEND (SP, 2);
		2197	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2198	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2199	}
		2200	}
		2201
		2202	void
		2203	eventfd (unsigned int initval = 0, int flags = 0)
		2204	PPCODE:
		2205	{
		2206	int fd;
		2207	#if HAVE_EVENTFD
		2208	fd = eventfd (initval, flags);
		2209	#else
		2210	fd = (errno = ENOSYS, -1);
		2211	#endif
		2212
		2213	XPUSHs (newmortalFH (fd, O_RDWR));
		2214	}
		2215
		2216	void
		2217	timerfd_create (int clockid, int flags = 0)
		2218	PPCODE:
		2219	{
		2220	int fd;
		2221	#if HAVE_TIMERFD
		2222	fd = timerfd_create (clockid, flags);
		2223	#else
		2224	fd = (errno = ENOSYS, -1);
		2225	#endif
		2226
		2227	XPUSHs (newmortalFH (fd, O_RDWR));
		2228	}
		2229
		2230	void
		2231	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2232	PPCODE:
		2233	{
		2234	int fd = s_fileno_croak (fh, 0);
		2235	int res;
		2236	struct itimerspec its, ots;
		2237
		2238	ts_set (&its.it_interval, interval);
		2239	ts_set (&its.it_value , value);
		2240	#if HAVE_TIMERFD
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242	#else
		2243	res = (errno = ENOSYS, -1);
		2244	#endif
		2245
		2246	if (!res)
		2247	{
		2248	EXTEND (SP, 2);
		2249	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2250	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2251	}
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	int res;
		2260	struct itimerspec ots;
		2261	#if HAVE_TIMERFD
		2262	res = timerfd_gettime (fd, &ots);
		2263	#else
		2264	res = (errno = ENOSYS, -1);
		2265	#endif
		2266
		2267	if (!res)
		2268	{
		2269	EXTEND (SP, 2);
		2270	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2271	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2272	}
		2273	}
		2274
		2275	UV
		2276	get_fdlimit ()
		2277	CODE:
		2278	#if HAVE_RLIMITS
		2279	struct rlimit rl;
		2280	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2281	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2282	#endif
		2283	XSRETURN_UNDEF;
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	void
		2288	min_fdlimit (UV limit = 0x7fffffffU)
		2289	CODE:
		2290	{
		2291	#if HAVE_RLIMITS
		2292	struct rlimit rl;
		2293	rlim_t orig_rlim_max;
		2294	UV bit;
		2295
		2296	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2297	goto fail;
		2298
		2299	if (rl.rlim_cur == RLIM_INFINITY)
		2300	XSRETURN_YES;
		2301
		2302	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2303
		2304	if (rl.rlim_cur < limit)
		2305	{
		2306	rl.rlim_cur = limit;
		2307
		2308	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2309	rl.rlim_max = rl.rlim_cur;
		2310	}
		2311
		2312	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2313	XSRETURN_YES;
		2314
		2315	if (errno == EPERM)
		2316	{
		2317	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2318	/* our limit overflows a system-wide limit */
		2319	/* try an adaptive algorithm, but do not lower the hardlimit */
		2320	rl.rlim_max = 0;
		2321	for (bit = 0x40000000U; bit; bit >>= 1)
		2322	{
		2323	rl.rlim_max |= bit;
		2324	rl.rlim_cur = rl.rlim_max;
		2325
		2326	/* nevr decrease the hard limit */
		2327	if (rl.rlim_max < orig_rlim_max)
		2328	break;
		2329
		2330	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2331	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2332	}
		2333
		2334	/* now, raise the soft limit to the max permitted */
		2335	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2336	{
		2337	rl.rlim_cur = rl.rlim_max;
		2338	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2339	errno = EPERM;
		2340	}
		2341	}
		2342	#endif
		2343	fail:
		2344	XSRETURN_UNDEF;
		2345	}
1829		2346
1830	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1831	CODE:	2348	CODE:
1832	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);
1833	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2350	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1868	cancel (aio_req_ornot req)	2385	cancel (aio_req_ornot req)
1869	CODE:	2386	CODE:
1870	eio_cancel (req);	2387	eio_cancel (req);
1871		2388
1872	void	2389	void
1873	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2390	cb (aio_req_ornot req, SV *callback = NO_INIT)
1874	PPCODE:	2391	PPCODE:
1875	{	2392	{
1876	if (GIMME_V != G_VOID)	2393	if (GIMME_V != G_VOID)
1877	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2394	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1878		2395
1879	if (items > 1)	2396	if (items > 1)
1880	{	2397	{
1881	SV *cb_cv =get_cb (callback);	2398	SV *cb_cv = get_cb (callback);
1882		2399
1883	SvREFCNT_dec (req->callback);	2400	SvREFCNT_dec (req->callback);
1884	req->callback = SvREFCNT_inc (cb_cv);	2401	req->callback = SvREFCNT_inc (cb_cv);
1885	}	2402	}
1886	}	2403	}
…		…
1943	limit (aio_req grp, int limit)	2460	limit (aio_req grp, int limit)
1944	CODE:	2461	CODE:
1945	eio_grp_limit (grp, limit);	2462	eio_grp_limit (grp, limit);
1946		2463
1947	void	2464	void
1948	feed (aio_req grp, SV *callback=&PL_sv_undef)	2465	feed (aio_req grp, SV *callback = &PL_sv_undef)
1949	CODE:	2466	CODE:
1950	{	2467	{
1951	SvREFCNT_dec (grp->sv2);	2468	SvREFCNT_dec (grp->sv2);
1952	grp->sv2 = newSVsv (callback);	2469	grp->sv2 = newSVsv (callback);
1953	grp->feed = aio_grp_feed;	2470	grp->feed = aio_grp_feed;

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