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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.210 by root, Fri Apr 6 11:39:25 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
		32	# include <linux/types.h>
27	# include <linux/fiemap.h>	33	# include <linux/fiemap.h>
28	# define HAVE_FIEMAP 1	34	# define HAVE_FIEMAP 1
29	# endif	35	# endif
30	#endif	36	#endif
31		37
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
100		106
101	/*****************************************************************************/	107	/*****************************************************************************/
102		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
103	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
106		123
107	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;
…		…
113	STRLEN stroffset; \	130	STRLEN stroffset; \
114	SV *self;	131	SV *self;
115		132
116	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
117		134
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	135	#include "libeio/eio.h"
120		136
121	static int req_invoke (eio_req *req);	137	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	138	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	139	static void req_destroy (eio_req *grp);
…		…
140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141	# endif	157	# endif
142	#endif	158	#endif
143		159
144	/* 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 */
145	#include "def0.h"	162	#include "def0.h"
146		163
147	#ifndef makedev	164	#ifndef makedev
148	# define makedev(maj,min) (((maj) << 8) | (min))	165	# define makedev(maj,min) (((maj) << 8) | (min))
149	#endif	166	#endif
…		…
152	#endif	169	#endif
153	#ifndef minor	170	#ifndef minor
154	# define minor(dev) ((dev) & 0xff)	171	# define minor(dev) ((dev) & 0xff)
155	#endif	172	#endif
156		173
157	#ifndef PAGESIZE	174	#if PAGESIZE <= 0
158	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
159	#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	}
160		268
161	/*****************************************************************************/	269	/*****************************************************************************/
162		270
163	static void	271	static void
164	fiemap (eio_req *req)	272	fiemap (eio_req *req)
165	{	273	{
166	req->result = -1;	274	req->result = -1;
167		275
168	#if HAVE_FIEMAP	276	#if HAVE_FIEMAP
		277	/* assume some c99 */
		278	struct fiemap *fiemap = 0;
		279	size_t end_offset;
		280	int count = req->int3;
		281
		282	req->flags |= EIO_FLAG_PTR1_FREE;
		283
		284	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		285	/* increase in 3.5kb steps */
		286	if (count < 0)
		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);
		317
169	for (;;)	318	for (;;)
170	{	319	{
171	int count = req->int3;	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;
172		323
173	if (count < 0)	324	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
174	{	325	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
175	struct fiemap fiemap;	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);
176		329
177	fiemap.fm_start = req->offs;
178	fiemap.fm_length = req->size;
179	fiemap.fm_flags = req->int2;
180	fiemap.fm_extent_count = 0;
181
182	if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))	330	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183	return;	331	return;
184		332
185	count = fiemap.fm_mapped_extents;	333	if (!incmap->fm_mapped_extents)
186	}	334	goto done;
187		335
		336	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	337	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189	errno = ENOMEM;	338	errno = ENOMEM;
190	if (!fiemap)	339	if (!fiemap)
191	return;	340	return;
192		341
193	req->ptr1 = fiemap;	342	req->ptr1 = fiemap;
194	req->flags |= EIO_FLAG_PTR1_FREE;
195		343
196	fiemap->fm_start = req->offs;	344	for (count = 0; count < incmap->fm_mapped_extents; ++count)
197	fiemap->fm_length = req->size;	345	{
198	fiemap->fm_flags = req->int2;	346	struct fiemap_extent *e = incmap->fm_extents + count;
199	fiemap->fm_extent_count = count;
200		347
201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	348	if (e->fe_logical + e->fe_length >= end_offset)
202	return;	349	goto done;
203		350
204	if (req->int3 >= 0)	351	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
205	break; /* when not autosizing we are done */
206		352
207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	353	if (e->fe_flags & FIEMAP_EXTENT_LAST)
208	break; /* autosizing successful, we are done */	354	goto done;
209		355
210	free (fiemap);	356	}
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	{
		724	#if HAVE_FIEMAP
550	if (!req->result)	725	if (!req->result)
551	{	726	{
552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;	727	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
553		728
554	if (fiemap->fm_extent_count)	729	if (fiemap->fm_extent_count)
…		…
575	{	750	{
576	SvIV_set (sv_result, fiemap->fm_mapped_extents);	751	SvIV_set (sv_result, fiemap->fm_mapped_extents);
577	PUSHs (sv_result);	752	PUSHs (sv_result);
578	}	753	}
579	}	754	}
		755	#endif
580	}	756	}
581	else	757	else
582	PUSHs (sv_result);	758	PUSHs (sv_result);
583	break;	759	break;
584		760
…		…
654	{	830	{
655	while (eio_nreqs ())	831	while (eio_nreqs ())
656	{	832	{
657	int size;	833	int size;
658		834
659	X_LOCK (reslock);	835	X_LOCK (EIO_POOL->reslock);
660	size = res_queue.size;	836	size = EIO_POOL->res_queue.size;
661	X_UNLOCK (reslock);	837	X_UNLOCK (EIO_POOL->reslock);
662		838
663	if (size)	839	if (size)
664	return;	840	return;
665		841
666	etp_maybe_start_thread ();	842	etp_maybe_start_thread (EIO_POOL);
667		843
668	s_epipe_wait (&respipe);	844	s_epipe_wait (&respipe);
669	}	845	}
670	}	846	}
671		847
…		…
692	create_respipe ();	868	create_respipe ();
693		869
694	if (eio_init (want_poll, done_poll) < 0)	870	if (eio_init (want_poll, done_poll) < 0)
695	croak ("IO::AIO: unable to initialise eio library");	871	croak ("IO::AIO: unable to initialise eio library");
696	}	872	}
697
698	/*****************************************************************************/
699
700	#if !_POSIX_MAPPED_FILES
701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
702	# define munmap(addr,length) (errno = ENOSYS, -1)
703	#endif
704
705	#if !_POSIX_MEMORY_PROTECTION
706	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
707	# define PROT_NONE 0
708	# define PROT_WRITE 0
709	# define MAP_PRIVATE 0
710	# define MAP_SHARED 0
711	# define MAP_FIXED 0
712	#endif
713
714	#define MMAP_MAGIC PERL_MAGIC_ext
715
716	static int ecb_cold
717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
718	{
719	int old_errno = errno;
720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
721	errno = old_errno;
722
723	mg->mg_obj = 0; /* just in case */
724
725	SvREADONLY_off (sv);
726
727	if (SvPVX (sv) != mg->mg_ptr)
728	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
729
730	SvCUR_set (sv, 0);
731	SvPVX (sv) = 0;
732	SvOK_off (sv);
733
734	return 0;
735	}
736
737	static MGVTBL mmap_vtbl = {
738	0, 0, 0, 0, mmap_free
739	};
740		873
741	/*****************************************************************************/	874	/*****************************************************************************/
742		875
743	static SV *	876	static SV *
744	get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
…		…
856	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
857	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
858	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
859	# define const_eio(name) { # name, (IV) EIO_ ## name },	992	# define const_eio(name) { # name, (IV) EIO_ ## name },
860		993
861	/* 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 */
862		995	/* the first block can be undef if missing */
863	const_iv (ENOSYS)	996	const_iv (ENOSYS)
864	const_iv (EXDEV)	997	const_iv (EXDEV)
865	const_iv (EBADR)	998	const_iv (EBADR)
866		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 */
867	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
868	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
869	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
870	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
871	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
…		…
884	const_iv (O_SEARCH)	1035	const_iv (O_SEARCH)
885	const_iv (O_DIRECTORY)	1036	const_iv (O_DIRECTORY)
886	const_iv (O_DSYNC)	1037	const_iv (O_DSYNC)
887	const_iv (O_RSYNC)	1038	const_iv (O_RSYNC)
888	const_iv (O_SYNC)	1039	const_iv (O_SYNC)
		1040	const_iv (O_PATH)
		1041	const_iv (O_TMPFILE)
889	const_iv (O_TTY_INIT)	1042	const_iv (O_TTY_INIT)
890		1043
891	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
892	const_iv (S_IFCHR)	1045	const_iv (S_IFCHR)
893	const_iv (S_IFBLK)	1046	const_iv (S_IFBLK)
…		…
895	const_iv (S_IFREG)	1048	const_iv (S_IFREG)
896	const_iv (S_IFDIR)	1049	const_iv (S_IFDIR)
897	const_iv (S_IFWHT)	1050	const_iv (S_IFWHT)
898	const_iv (S_IFSOCK)	1051	const_iv (S_IFSOCK)
899	const_iv (S_IFMT)	1052	const_iv (S_IFMT)
900
901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
906	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
907
908	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
909	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
910	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
911	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
912	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
913		1053
914	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
915	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
916	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
917	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
927	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
928	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
929	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
930	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
931		1071
932	/*const_iv (MAP_FIXED)*/
933	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
934	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
935	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
936		1076
937	/* linuxish */	1077	/* linuxish */
938	const_iv (MAP_HUGETLB)
939	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
940	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
941	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
942	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)
943		1149
944	const_iv (FIEMAP_FLAG_SYNC)	1150	const_iv (FIEMAP_FLAG_SYNC)
945	const_iv (FIEMAP_FLAG_XATTR)	1151	const_iv (FIEMAP_FLAG_XATTR)
946	const_iv (FIEMAP_FLAGS_COMPAT)	1152	const_iv (FIEMAP_FLAGS_COMPAT)
947	const_iv (FIEMAP_EXTENT_LAST)	1153	const_iv (FIEMAP_EXTENT_LAST)
…		…
954	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1160	const_iv (FIEMAP_EXTENT_DATA_TAIL)
955	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1161	const_iv (FIEMAP_EXTENT_UNWRITTEN)
956	const_iv (FIEMAP_EXTENT_MERGED)	1162	const_iv (FIEMAP_EXTENT_MERGED)
957	const_iv (FIEMAP_EXTENT_SHARED)	1163	const_iv (FIEMAP_EXTENT_SHARED)
958		1164
		1165	const_iv (SPLICE_F_MOVE)
		1166	const_iv (SPLICE_F_NONBLOCK)
		1167	const_iv (SPLICE_F_MORE)
		1168	const_iv (SPLICE_F_GIFT)
		1169
		1170	const_iv (EFD_CLOEXEC)
		1171	const_iv (EFD_NONBLOCK)
		1172	const_iv (EFD_SEMAPHORE)
		1173
		1174	/* these are libeio constants, and are independent of gendef0 */
959	const_eio (SEEK_SET)	1175	const_eio (SEEK_SET)
960	const_eio (SEEK_CUR)	1176	const_eio (SEEK_CUR)
961	const_eio (SEEK_END)	1177	const_eio (SEEK_END)
962		1178
963	const_eio (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
…		…
972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
973	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1190	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
975		1191
976	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)
977		1202
978	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
979	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
980	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
981	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1049	PROTOTYPE: $	1274	PROTOTYPE: $
1050	CODE:	1275	CODE:
1051	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
1052		1277
1053	void	1278	void
1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1055	PPCODE:	1280	PPCODE:
1056	{	1281	{
1057	dREQ;	1282	dREQ;
1058		1283
1059	req->type = EIO_WD_OPEN;	1284	req->type = EIO_WD_OPEN;
…		…
1061		1286
1062	REQ_SEND;	1287	REQ_SEND;
1063	}	1288	}
1064		1289
1065	void	1290	void
1066	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)
1067	PPCODE:	1292	PPCODE:
1068	{	1293	{
1069	dREQ;	1294	dREQ;
1070		1295
1071	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
…		…
1075		1300
1076	REQ_SEND;	1301	REQ_SEND;
1077	}	1302	}
1078		1303
1079	void	1304	void
1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1081	ALIAS:	1306	ALIAS:
1082	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
1083	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
1084	aio_syncfs = EIO_SYNCFS	1309	aio_syncfs = EIO_SYNCFS
1085	PPCODE:	1310	PPCODE:
1086	{	1311	{
1087	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
1088	dREQ;	1313	dREQ;
1089		1314
1090	req->type = ix;	1315	req->type = ix;
1091	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1092	req->int1 = fd;	1317	req->int1 = fd;
1093		1318
1094	REQ_SEND;	1319	REQ_SEND;
1095	}	1320	}
1096		1321
1097	void	1322	void
1098	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)
1099	PPCODE:	1324	PPCODE:
1100	{	1325	{
1101	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
1102	dREQ;	1327	dREQ;
1103		1328
1104	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
1105	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
1106	req->int1 = fd;	1331	req->int1 = fd;
…		…
1110		1335
1111	REQ_SEND;	1336	REQ_SEND;
1112	}	1337	}
1113		1338
1114	void	1339	void
1115	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)
1116	PPCODE:	1341	PPCODE:
1117	{	1342	{
1118	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
1119	dREQ;	1344	dREQ;
1120		1345
1121	req->type = EIO_FALLOCATE;	1346	req->type = EIO_FALLOCATE;
1122	req->sv1 = newSVsv (fh);	1347	req->sv1 = newSVsv (fh);
1123	req->int1 = fd;	1348	req->int1 = fd;
…		…
1127		1352
1128	REQ_SEND;	1353	REQ_SEND;
1129	}	1354	}
1130		1355
1131	void	1356	void
1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1133	PPCODE:	1358	PPCODE:
1134	{	1359	{
1135	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 */
1136	int fd = s_fileno_croak (fh, 0);	1361	int fd = s_fileno_croak (fh, 0);
1137	dREQ;	1362	dREQ;
1138		1363
1139	if (expect_false (close_fd < 0))	1364	if (expect_false (close_fd < 0))
1140	{	1365	{
1141	int pipefd [2];	1366	int pipefd [2];
…		…
1161		1386
1162	REQ_SEND;	1387	REQ_SEND;
1163	}	1388	}
1164		1389
1165	void	1390	void
1166	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)
1167	PPCODE:	1392	PPCODE:
1168	{	1393	{
1169	STRLEN svlen;
1170	int fd = s_fileno_croak (fh, 0);	1394	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1395	dREQ;
1172		1396
1173	req->type = EIO_SEEK;	1397	req->type = EIO_SEEK;
1174	req->sv1 = newSVsv (fh);	1398	req->sv1 = newSVsv (fh);
…		…
1178		1402
1179	REQ_SEND;	1403	REQ_SEND;
1180	}	1404	}
1181		1405
1182	void	1406	void
1183	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)
1184	ALIAS:	1408	ALIAS:
1185	aio_read = EIO_READ	1409	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
1187	PPCODE:	1411	PPCODE:
1188	{	1412	{
…		…
1204	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
1205	}	1429	}
1206	else	1430	else
1207	{	1431	{
1208	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1434	svptr = sv_grow (data, len + dataoffset + 1);
		1435	else if (SvCUR (data) < len + dataoffset)
		1436	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1437	}
1212		1438
1213	{	1439	{
1214	dREQ;	1440	dREQ;
1215		1441
…		…
1231	REQ_SEND;	1457	REQ_SEND;
1232	}	1458	}
1233	}	1459	}
1234		1460
1235	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
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1502	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1503	ALIAS:
1238	aio_readlink = EIO_READLINK	1504	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1505	aio_realpath = EIO_REALPATH
1240	PPCODE:	1506	PPCODE:
1241	{	1507	{
…		…
1246		1512
1247	REQ_SEND;	1513	REQ_SEND;
1248	}	1514	}
1249		1515
1250	void	1516	void
1251	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)
1252	PPCODE:	1518	PPCODE:
1253	{	1519	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1522	dREQ;
1257		1523
1258	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1265		1531
1266	REQ_SEND;	1532	REQ_SEND;
1267	}	1533	}
1268		1534
1269	void	1535	void
1270	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)
1271	PPCODE:	1537	PPCODE:
1272	{	1538	{
1273	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1540	dREQ;
1275		1541
1276	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1544	req->int1 = fd;
…		…
1281		1547
1282	REQ_SEND;	1548	REQ_SEND;
1283	}	1549	}
1284		1550
1285	void	1551	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1553	ALIAS:
1288	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1557	PPCODE:
…		…
1300	UV	1566	UV
1301	major (UV dev)	1567	major (UV dev)
1302	ALIAS:	1568	ALIAS:
1303	minor = 1	1569	minor = 1
1304	CODE:	1570	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1572	OUTPUT:
1307	RETVAL	1573	RETVAL
1308		1574
1309	UV	1575	UV
1310	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1578	RETVAL = makedev (maj, min);
1313	OUTPUT:	1579	OUTPUT:
1314	RETVAL	1580	RETVAL
1315		1581
1316	void	1582	void
1317	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)
1318	PPCODE:	1584	PPCODE:
1319	{	1585	{
1320	dREQ;	1586	dREQ;
1321		1587
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1591
1326	REQ_SEND;	1592	REQ_SEND;
1327	}	1593	}
1328		1594
1329	void	1595	void
1330	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)
1331	PPCODE:	1597	PPCODE:
1332	{	1598	{
1333	dREQ;	1599	dREQ;
1334		1600
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1603
1338	REQ_SEND;	1604	REQ_SEND;
1339	}	1605	}
1340		1606
1341	void	1607	void
1342	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)
1343	PPCODE:	1609	PPCODE:
1344	{	1610	{
1345	dREQ;	1611	dREQ;
1346		1612
1347	req->int2 = mode;	1613	req->int2 = mode;
…		…
1349		1615
1350	REQ_SEND;	1616	REQ_SEND;
1351	}	1617	}
1352		1618
1353	void	1619	void
1354	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)
1355	PPCODE:	1621	PPCODE:
1356	{	1622	{
1357	dREQ;	1623	dREQ;
1358		1624
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1628
1363	REQ_SEND;	1629	REQ_SEND;
1364	}	1630	}
1365		1631
1366	void	1632	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1634	PPCODE:
1369	{	1635	{
1370	dREQ;	1636	dREQ;
1371		1637
1372	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
…		…
1379		1645
1380	REQ_SEND;	1646	REQ_SEND;
1381	}	1647	}
1382		1648
1383	void	1649	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1650	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1651	PPCODE:
1386	{	1652	{
1387	dREQ;	1653	dREQ;
1388		1654
1389	req->type = EIO_MKDIR;	1655	req->type = EIO_MKDIR;
…		…
1392		1658
1393	REQ_SEND;	1659	REQ_SEND;
1394	}	1660	}
1395		1661
1396	void	1662	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1664	ALIAS:
1399	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1402	PPCODE:	1668	PPCODE:
…		…
1408		1674
1409	REQ_SEND;	1675	REQ_SEND;
1410	}	1676	}
1411		1677
1412	void	1678	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1680	ALIAS:
1415	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1418	PPCODE:	1684	PPCODE:
…		…
1427		1693
1428	REQ_SEND;	1694	REQ_SEND;
1429	}	1695	}
1430		1696
1431	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
1432	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)
1433	PPCODE:	1715	PPCODE:
1434	{	1716	{
1435	dREQ;	1717	dREQ;
1436		1718
1437	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
…		…
1441		1723
1442	REQ_SEND;	1724	REQ_SEND;
1443	}	1725	}
1444		1726
1445	void	1727	void
1446	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)
1447	ALIAS:	1729	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1450	PPCODE:	1732	PPCODE:
1451	{	1733	{
1452	STRLEN svlen;	1734	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1740
1456	if (offset < 0)	1741	if (offset < 0)
1457	offset += svlen;	1742	offset += svlen;
1458		1743
1459	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1759	REQ_SEND;
1475	}	1760	}
1476	}	1761	}
1477		1762
1478	void	1763	void
1479	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)
1480	PPCODE:	1765	PPCODE:
1481	{	1766	{
1482	STRLEN svlen;	1767	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1769	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1788	REQ_SEND;
1504	}	1789	}
1505	}	1790	}
1506		1791
1507	void	1792	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1794	PPCODE:
1510	{	1795	{
1511	dREQ;	1796	dREQ;
1512		1797
1513	req->type = EIO_MLOCKALL;	1798	req->type = EIO_MLOCKALL;
…		…
1515		1800
1516	REQ_SEND;	1801	REQ_SEND;
1517	}	1802	}
1518		1803
1519	void	1804	void
1520	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)
1521	PPCODE:	1806	PPCODE:
1522	{	1807	{
1523	int fd = s_fileno_croak (fh, 0);	1808	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1809	dREQ;
1525		1810
1526	req->type = EIO_CUSTOM;	1811	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1812	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1813	req->int1 = fd;
1529		1814
1530	req->feed = fiemap;	1815	req->feed = fiemap;
		1816	#if HAVE_FIEMAP
1531	/* keep our fingers crossed that the next two types are 64 bit */	1817	/* keep our fingers crossed that the next two types are 64 bit */
1532	req->offs = start;	1818	req->offs = start;
1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;	1819	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1534	req->int2 = flags;	1820	req->int2 = flags;
1535	req->int3 = SvOK (count) ? SvIV (count) : -1;	1821	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1822	#endif
1536		1823
1537	REQ_SEND;	1824	REQ_SEND;
1538	}	1825	}
1539		1826
1540	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
1541	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1542	PPCODE:	1867	PPCODE:
1543	{	1868	{
1544	dREQ;	1869	dREQ;
1545		1870
1546	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1548		1873
1549	REQ_SEND;	1874	REQ_SEND;
1550	}	1875	}
1551		1876
1552	void	1877	void
1553	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1554	PPCODE:	1879	PPCODE:
1555	{	1880	{
1556	dREQ;	1881	dREQ;
1557		1882
1558	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1559		1884
		1885	PUTBACK;
1560	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1561	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1562	}	1890	}
1563		1891
1564	void	1892	void
1565	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1566	ALIAS:	1894	ALIAS:
1567	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1568	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1569	PPCODE:	1897	PPCODE:
1570	{	1898	{
…		…
1574		1902
1575	REQ_SEND;	1903	REQ_SEND;
1576	}	1904	}
1577		1905
1578	int	1906	int
1579	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1580	CODE:	1908	CODE:
1581	RETVAL = next_pri;	1909	RETVAL = next_pri;
1582	if (items > 0)	1910	if (items > 0)
1583	{	1911	{
1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1675	OUTPUT:	2003	OUTPUT:
1676	RETVAL	2004	RETVAL
1677		2005
1678	void	2006	void
1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2007	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1680	PPCODE:	2008	PPCODE:
1681	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1682	{	2010	{
1683	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;
1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1685	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1686	XSRETURN_NO;	2014	XSRETURN_NO;
1687		2015
1688	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1689
1690	/* we store the length in mg_obj, as namlen is I32 :/ */
1691	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1692	->mg_obj = (SV *)length;
1693
1694	SvUPGRADE (scalar, SVt_PV); /* nop... */
1695		2017
1696	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1697	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1698		2020
1699	if (SvLEN (scalar))
1700	Safefree (SvPVX (scalar));
1701
1702	SvPVX (scalar) = (char *)addr;
1703	SvCUR_set (scalar, length);
1704	SvLEN_set (scalar, 0);
1705	SvPOK_only (scalar);
1706
1707	XSRETURN_YES;	2021	XSRETURN_YES;
1708	}	2022	}
1709		2023
1710	void	2024	void
1711	munmap (SV *scalar)	2025	munmap (SV *scalar)
1712	CODE:	2026	CODE:
1713	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1714		2028
1715	int	2029	int
1716	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)
1717	ALIAS:	2031	ALIAS:
1718	mprotect = 1	2032	mprotect = 1
1719	CODE:	2033	CODE:
1720	{	2034	{
1721	STRLEN svlen;	2035	STRLEN svlen;
1722	void *addr = SvPVbyte (scalar, svlen);	2036	void *addr = SvPVbyte (scalar, svlen);
1723	size_t len = SvUV (length);	2037	STRLEN len = SvUV (length);
1724		2038
1725	if (offset < 0)	2039	if (offset < 0)
1726	offset += svlen;	2040	offset += svlen;
1727		2041
1728	if (offset < 0 || offset > svlen)	2042	if (offset < 0 || offset > svlen)
…		…
1742	}	2056	}
1743	OUTPUT:	2057	OUTPUT:
1744	RETVAL	2058	RETVAL
1745		2059
1746	int	2060	int
1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1748	CODE:	2062	CODE:
1749	{	2063	{
1750	STRLEN svlen;	2064	STRLEN svlen;
1751	void *addr = SvPVbyte (scalar, svlen);	2065	void *addr = SvPVbyte (scalar, svlen);
1752	size_t len = SvUV (length);	2066	size_t len = SvUV (length);
1753		2067
1754	if (offset < 0)	2068	if (offset < 0)
1755	offset += svlen;	2069	offset += svlen;
1756		2070
…		…
1763	addr = (void *)(((intptr_t)addr) + offset);	2077	addr = (void *)(((intptr_t)addr) + offset);
1764	eio_page_align (&addr, &len);	2078	eio_page_align (&addr, &len);
1765	#if _POSIX_MEMLOCK_RANGE	2079	#if _POSIX_MEMLOCK_RANGE
1766	RETVAL = munlock (addr, len);	2080	RETVAL = munlock (addr, len);
1767	#else	2081	#else
1768	RETVAL = ((errno = ENOSYS), -1);	2082	RETVAL = EIO_ENOSYS ();
1769	#endif	2083	#endif
1770	}	2084	}
1771	OUTPUT:	2085	OUTPUT:
1772	RETVAL	2086	RETVAL
1773		2087
…		…
1775	munlockall ()	2089	munlockall ()
1776	CODE:	2090	CODE:
1777	#if _POSIX_MEMLOCK	2091	#if _POSIX_MEMLOCK
1778	munlockall ();	2092	munlockall ();
1779	#else	2093	#else
1780	RETVAL = -1;	2094	RETVAL = EIO_ENOSYS ();
1781	errno = ENOSYS;
1782	#endif	2095	#endif
1783	OUTPUT:	2096	OUTPUT:
1784	RETVAL	2097	RETVAL
		2098
		2099	int
		2100	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2101	CODE:
		2102	{
		2103	#if HAVE_LINUX_SPLICE
		2104	loff_t off_in_, off_out_;
		2105	RETVAL = splice (
		2106	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2107	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2108	length, flags
		2109	);
		2110	#else
		2111	RETVAL = EIO_ENOSYS ();
		2112	#endif
		2113	}
		2114	OUTPUT:
		2115	RETVAL
		2116
		2117	int
		2118	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2119	CODE:
		2120	#if HAVE_LINUX_SPLICE
		2121	RETVAL = tee (rfh, wfh, length, flags);
		2122	#else
		2123	RETVAL = EIO_ENOSYS ();
		2124	#endif
		2125	OUTPUT:
		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	}
1785		2254
1786	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1787	CODE:	2256	CODE:
1788	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1824	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1825	CODE:	2294	CODE:
1826	eio_cancel (req);	2295	eio_cancel (req);
1827		2296
1828	void	2297	void
1829	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1830	PPCODE:	2299	PPCODE:
1831	{	2300	{
1832	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1833	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);
1834		2303
1835	if (items > 1)	2304	if (items > 1)
1836	{	2305	{
1837	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1838		2307
1839	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1840	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1841	}	2310	}
1842	}	2311	}
…		…
1899	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1900	CODE:	2369	CODE:
1901	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1902		2371
1903	void	2372	void
1904	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1905	CODE:	2374	CODE:
1906	{	2375	{
1907	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1908	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1909	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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