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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.219 by root, Fri Jul 27 18:43:25 2012 UTC vs.
Revision 1.256 by root, Tue Feb 20 06:54:46 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8
9	#include "schmorp.h"
10		8
11	#include <stddef.h>	9	#include <stddef.h>
12	#include <stdlib.h>	10	#include <stdlib.h>
13	#include <errno.h>	11	#include <errno.h>
14	#include <sys/types.h>	12	#include <sys/types.h>
…		…
19		17
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	18	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	19	# include <sys/mman.h>
22	#endif	20	#endif
23		21
24	#if __linux__	22	/* the incompetent fool that created musl keeps __linux__, refuses
		23	* to implement any linux standard apis, and also has no way to test
		24	* for his broken iplementation. don't complain to me if this fails
		25	* for you.
		26	*/
		27	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	28	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	29	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	30	# include <linux/types.h>
28	# include <linux/fiemap.h>	31	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	32	# define HAVE_FIEMAP 1
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	102	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	103	#define expect_true(expr) expect ((expr) != 0, 1)
101		104
102	/*****************************************************************************/	105	/*****************************************************************************/
103		106
		107	#include "libeio/config.h"
		108
		109	#include "schmorp.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 72 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 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_mapped_extents < count)	357	if (e->fe_flags & FIEMAP_EXTENT_LAST)
200	/* either autosizing succeeded,	358	goto done;
201	* or the file had no extents
202	* or we luckily had enough space */
203	break;
204		359
205	/* some kernels overwrite fm_length, so just reset everything */	360	}
206	fiemap->fm_start = req->offs;
207	fiemap->fm_length = req->size;
208	fiemap->fm_flags = req->int2;
209	fiemap->fm_extent_count = 0;
210
211	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212	return;
213
214	/* to work around a kernel bug, we allocate one more */
215	count = fiemap->fm_mapped_extents + 1;
216
217	free (fiemap);
218	}	361	}
219		362
		363	done:
220	req->result = 0;	364	req->result = 0;
221		365
222	#else	366	#else
223	errno = ENOSYS;	367	errno = ENOSYS;
224	#endif	368	#endif
…		…
271	}	415	}
272		416
273	static SV *	417	static SV *
274	newSVaio_wd (aio_wd wd)	418	newSVaio_wd (aio_wd wd)
275	{	419	{
276	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	420	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
277	}	421	}
278		422
279	static aio_req	423	static aio_req
280	SvAIO_REQ (SV *sv)	424	SvAIO_REQ (SV *sv)
281	{	425	{
…		…
300	|| SvTYPE (SvRV (sv)) != SVt_PVMG	444	|| SvTYPE (SvRV (sv)) != SVt_PVMG
301	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	445	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
302	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");
303		447
304	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;
305	}	474	}
306		475
307	static void	476	static void
308	aio_grp_feed (aio_req grp)	477	aio_grp_feed (aio_req grp)
309	{	478	{
…		…
437	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))));
438	}	607	}
439	break;	608	break;
440		609
441	case EIO_OPEN:	610	case EIO_OPEN:
442	{	611	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
443	/* convert fd to fh */
444	SV *fh = &PL_sv_undef;
445
446	if (req->result >= 0)
447	{
448	GV *gv = (GV *)sv_newmortal ();
449	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
450	char sym [64];
451	int symlen;
452
453	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
454	gv_init (gv, aio_stash, sym, symlen, 0);
455
456	symlen = snprintf (
457	sym,
458	sizeof (sym),
459	"%s&=%d",
460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461	(int)req->result
462	);
463
464	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
465	fh = (SV *)gv;
466	}
467
468	PUSHs (fh);
469	}
470	break;	612	break;
471		613
472	case EIO_STATVFS:	614	case EIO_STATVFS:
473	case EIO_FSTATVFS:	615	case EIO_FSTATVFS:
474	{	616	{
…		…
477	#ifndef _WIN32	619	#ifndef _WIN32
478	if (req->result >= 0)	620	if (req->result >= 0)
479	{	621	{
480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	622	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
481	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));
482		629
483	rv = sv_2mortal (newRV_noinc ((SV *)hv));	630	rv = sv_2mortal (newRV_noinc ((SV *)hv));
484		631
485	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);
486	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);
…		…
488	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);
489	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);
490	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);
491	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);
492	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);
493	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	640	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
494	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);
495	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);
496	}	643	}
497	#endif	644	#endif
498		645
…		…
549	SvSETMAGIC (req->sv2);	696	SvSETMAGIC (req->sv2);
550	PUSHs (sv_result);	697	PUSHs (sv_result);
551	}	698	}
552	break;	699	break;
553		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
554	case EIO_CUSTOM:	725	case EIO_CUSTOM:
555	if (req->feed == fiemap)	726	if (req->feed == fiemap)
556	{	727	{
557	#if HAVE_FIEMAP	728	#if HAVE_FIEMAP
558	if (!req->result)	729	if (!req->result)
…		…
663	{	834	{
664	while (eio_nreqs ())	835	while (eio_nreqs ())
665	{	836	{
666	int size;	837	int size;
667		838
668	X_LOCK (reslock);	839	X_LOCK (EIO_POOL->reslock);
669	size = res_queue.size;	840	size = EIO_POOL->res_queue.size;
670	X_UNLOCK (reslock);	841	X_UNLOCK (EIO_POOL->reslock);
671		842
672	if (size)	843	if (size)
673	return;	844	return;
674		845
675	etp_maybe_start_thread ();	846	etp_maybe_start_thread (EIO_POOL);
676		847
677	s_epipe_wait (&respipe);	848	s_epipe_wait (&respipe);
678	}	849	}
679	}	850	}
680		851
…		…
701	create_respipe ();	872	create_respipe ();
702		873
703	if (eio_init (want_poll, done_poll) < 0)	874	if (eio_init (want_poll, done_poll) < 0)
704	croak ("IO::AIO: unable to initialise eio library");	875	croak ("IO::AIO: unable to initialise eio library");
705	}	876	}
706
707	/*****************************************************************************/
708
709	#if !_POSIX_MAPPED_FILES
710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
711	# define munmap(addr,length) EIO_ENOSYS ()
712	#endif
713
714	#if !_POSIX_MEMORY_PROTECTION
715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
716	# define PROT_NONE 0
717	# define PROT_WRITE 0
718	# define MAP_PRIVATE 0
719	# define MAP_SHARED 0
720	# define MAP_FIXED 0
721	#endif
722
723	#define MMAP_MAGIC PERL_MAGIC_ext
724
725	static int ecb_cold
726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
727	{
728	int old_errno = errno;
729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
730	errno = old_errno;
731
732	mg->mg_obj = 0; /* just in case */
733
734	SvREADONLY_off (sv);
735
736	if (SvPVX (sv) != mg->mg_ptr)
737	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
738
739	SvCUR_set (sv, 0);
740	SvPVX (sv) = 0;
741	SvOK_off (sv);
742
743	return 0;
744	}
745
746	static MGVTBL mmap_vtbl = {
747	0, 0, 0, 0, mmap_free
748	};
749		877
750	/*****************************************************************************/	878	/*****************************************************************************/
751		879
752	static SV *	880	static SV *
753	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
…		…
849	req_set_path1 (req, fh_or_path);	977	req_set_path1 (req, fh_or_path);
850	break;	978	break;
851	}	979	}
852	}	980	}
853		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
854	XS(boot_IO__AIO) ecb_cold;	999	XS(boot_IO__AIO) ecb_cold;
855		1000
856	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
857		1002
858	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
…		…
865	} *civ, const_iv[] = {	1010	} *civ, const_iv[] = {
866	# define const_niv(name, value) { # name, (IV) value },	1011	# define const_niv(name, value) { # name, (IV) value },
867	# define const_iv(name) { # name, (IV) name },	1012	# define const_iv(name) { # name, (IV) name },
868	# define const_eio(name) { # name, (IV) EIO_ ## name },	1013	# define const_eio(name) { # name, (IV) EIO_ ## name },
869		1014
870	/* 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 */
871		1016	/* the first block can be undef if missing */
872	const_iv (ENOSYS)	1017	const_iv (ENOSYS)
873	const_iv (EXDEV)	1018	const_iv (EXDEV)
874	const_iv (EBADR)	1019	const_iv (EBADR)
875		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 */
876	const_iv (O_RDONLY)	1039	const_iv (O_RDONLY)
877	const_iv (O_WRONLY)	1040	const_iv (O_WRONLY)
878	const_iv (O_RDWR)	1041	const_iv (O_RDWR)
879	const_iv (O_CREAT)	1042	const_iv (O_CREAT)
880	const_iv (O_TRUNC)	1043	const_iv (O_TRUNC)
…		…
893	const_iv (O_SEARCH)	1056	const_iv (O_SEARCH)
894	const_iv (O_DIRECTORY)	1057	const_iv (O_DIRECTORY)
895	const_iv (O_DSYNC)	1058	const_iv (O_DSYNC)
896	const_iv (O_RSYNC)	1059	const_iv (O_RSYNC)
897	const_iv (O_SYNC)	1060	const_iv (O_SYNC)
		1061	const_iv (O_PATH)
		1062	const_iv (O_TMPFILE)
898	const_iv (O_TTY_INIT)	1063	const_iv (O_TTY_INIT)
899		1064
900	const_iv (S_IFIFO)	1065	const_iv (S_IFIFO)
901	const_iv (S_IFCHR)	1066	const_iv (S_IFCHR)
902	const_iv (S_IFBLK)	1067	const_iv (S_IFBLK)
…		…
904	const_iv (S_IFREG)	1069	const_iv (S_IFREG)
905	const_iv (S_IFDIR)	1070	const_iv (S_IFDIR)
906	const_iv (S_IFWHT)	1071	const_iv (S_IFWHT)
907	const_iv (S_IFSOCK)	1072	const_iv (S_IFSOCK)
908	const_iv (S_IFMT)	1073	const_iv (S_IFMT)
909
910	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
911	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
912	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
913	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
914	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
915	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
916
917	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
918	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
919	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
920	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
921	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
922		1074
923	const_iv (ST_RDONLY)	1075	const_iv (ST_RDONLY)
924	const_iv (ST_NOSUID)	1076	const_iv (ST_NOSUID)
925	const_iv (ST_NODEV)	1077	const_iv (ST_NODEV)
926	const_iv (ST_NOEXEC)	1078	const_iv (ST_NOEXEC)
…		…
936	const_iv (PROT_NONE)	1088	const_iv (PROT_NONE)
937	const_iv (PROT_EXEC)	1089	const_iv (PROT_EXEC)
938	const_iv (PROT_READ)	1090	const_iv (PROT_READ)
939	const_iv (PROT_WRITE)	1091	const_iv (PROT_WRITE)
940		1092
941	/*const_iv (MAP_FIXED)*/
942	const_iv (MAP_PRIVATE)	1093	const_iv (MAP_PRIVATE)
943	const_iv (MAP_SHARED)	1094	const_iv (MAP_SHARED)
		1095	const_iv (MAP_FIXED)
944	const_iv (MAP_ANONYMOUS)	1096	const_iv (MAP_ANONYMOUS)
945		1097
946	/* linuxish */	1098	/* linuxish */
947	const_iv (MAP_HUGETLB)
948	const_iv (MAP_LOCKED)	1099	const_iv (MAP_LOCKED)
949	const_iv (MAP_NORESERVE)	1100	const_iv (MAP_NORESERVE)
950	const_iv (MAP_POPULATE)	1101	const_iv (MAP_POPULATE)
951	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)
952		1170
953	const_iv (FIEMAP_FLAG_SYNC)	1171	const_iv (FIEMAP_FLAG_SYNC)
954	const_iv (FIEMAP_FLAG_XATTR)	1172	const_iv (FIEMAP_FLAG_XATTR)
955	const_iv (FIEMAP_FLAGS_COMPAT)	1173	const_iv (FIEMAP_FLAGS_COMPAT)
956	const_iv (FIEMAP_EXTENT_LAST)	1174	const_iv (FIEMAP_EXTENT_LAST)
…		…
968	const_iv (SPLICE_F_MOVE)	1186	const_iv (SPLICE_F_MOVE)
969	const_iv (SPLICE_F_NONBLOCK)	1187	const_iv (SPLICE_F_NONBLOCK)
970	const_iv (SPLICE_F_MORE)	1188	const_iv (SPLICE_F_MORE)
971	const_iv (SPLICE_F_GIFT)	1189	const_iv (SPLICE_F_GIFT)
972		1190
973	const_iv (SEEK_DATA)	1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
974	const_iv (SEEK_HOLE)	1193	const_iv (EFD_SEMAPHORE)
975		1194
976	/* 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 */
977	const_eio (SEEK_SET)	1208	const_eio (SEEK_SET)
978	const_eio (SEEK_CUR)	1209	const_eio (SEEK_CUR)
979	const_eio (SEEK_END)	1210	const_eio (SEEK_END)
980		1211
981	const_eio (MCL_FUTURE)	1212	const_eio (MCL_FUTURE)
…		…
991	const_eio (SYNC_FILE_RANGE_WRITE)	1222	const_eio (SYNC_FILE_RANGE_WRITE)
992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1223	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
993		1224
994	const_eio (FALLOC_FL_KEEP_SIZE)	1225	const_eio (FALLOC_FL_KEEP_SIZE)
995	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)
996		1235
997	const_eio (READDIR_DENTS)	1236	const_eio (READDIR_DENTS)
998	const_eio (READDIR_DIRS_FIRST)	1237	const_eio (READDIR_DIRS_FIRST)
999	const_eio (READDIR_STAT_ORDER)	1238	const_eio (READDIR_STAT_ORDER)
1000	const_eio (READDIR_FOUND_UNKNOWN)	1239	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1068	PROTOTYPE: $	1307	PROTOTYPE: $
1069	CODE:	1308	CODE:
1070	max_outstanding = maxreqs;	1309	max_outstanding = maxreqs;
1071		1310
1072	void	1311	void
1073	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1312	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1074	PPCODE:	1313	PPCODE:
1075	{	1314	{
1076	dREQ;	1315	dREQ;
1077		1316
1078	req->type = EIO_WD_OPEN;	1317	req->type = EIO_WD_OPEN;
…		…
1080		1319
1081	REQ_SEND;	1320	REQ_SEND;
1082	}	1321	}
1083		1322
1084	void	1323	void
1085	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)
1086	PPCODE:	1325	PPCODE:
1087	{	1326	{
1088	dREQ;	1327	dREQ;
1089		1328
1090	req->type = EIO_OPEN;	1329	req->type = EIO_OPEN;
…		…
1094		1333
1095	REQ_SEND;	1334	REQ_SEND;
1096	}	1335	}
1097		1336
1098	void	1337	void
1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1338	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1100	ALIAS:	1339	ALIAS:
1101	aio_fsync = EIO_FSYNC	1340	aio_fsync = EIO_FSYNC
1102	aio_fdatasync = EIO_FDATASYNC	1341	aio_fdatasync = EIO_FDATASYNC
1103	aio_syncfs = EIO_SYNCFS	1342	aio_syncfs = EIO_SYNCFS
1104	PPCODE:	1343	PPCODE:
1105	{	1344	{
1106	int fd = s_fileno_croak (fh, 0);	1345	int fd = s_fileno_croak (fh, 0);
1107	dREQ;	1346	dREQ;
1108		1347
1109	req->type = ix;	1348	req->type = ix;
1110	req->sv1 = newSVsv (fh);	1349	req->sv1 = newSVsv (fh);
1111	req->int1 = fd;	1350	req->int1 = fd;
1112		1351
1113	REQ_SEND;	1352	REQ_SEND;
1114	}	1353	}
1115		1354
1116	void	1355	void
1117	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)
1118	PPCODE:	1357	PPCODE:
1119	{	1358	{
1120	int fd = s_fileno_croak (fh, 0);	1359	int fd = s_fileno_croak (fh, 0);
1121	dREQ;	1360	dREQ;
1122		1361
1123	req->type = EIO_SYNC_FILE_RANGE;	1362	req->type = EIO_SYNC_FILE_RANGE;
1124	req->sv1 = newSVsv (fh);	1363	req->sv1 = newSVsv (fh);
1125	req->int1 = fd;	1364	req->int1 = fd;
…		…
1129		1368
1130	REQ_SEND;	1369	REQ_SEND;
1131	}	1370	}
1132		1371
1133	void	1372	void
1134	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)
1135	PPCODE:	1374	PPCODE:
1136	{	1375	{
1137	int fd = s_fileno_croak (fh, 0);	1376	int fd = s_fileno_croak (fh, 0);
1138	dREQ;	1377	dREQ;
1139		1378
1140	req->type = EIO_FALLOCATE;	1379	req->type = EIO_FALLOCATE;
1141	req->sv1 = newSVsv (fh);	1380	req->sv1 = newSVsv (fh);
1142	req->int1 = fd;	1381	req->int1 = fd;
…		…
1146		1385
1147	REQ_SEND;	1386	REQ_SEND;
1148	}	1387	}
1149		1388
1150	void	1389	void
1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1390	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1152	PPCODE:	1391	PPCODE:
1153	{	1392	{
1154	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 */
1155	int fd = s_fileno_croak (fh, 0);	1394	int fd = s_fileno_croak (fh, 0);
1156	dREQ;	1395	dREQ;
1157		1396
1158	if (expect_false (close_fd < 0))	1397	if (expect_false (close_fd < 0))
1159	{	1398	{
1160	int pipefd [2];	1399	int pipefd [2];
…		…
1180		1419
1181	REQ_SEND;	1420	REQ_SEND;
1182	}	1421	}
1183		1422
1184	void	1423	void
1185	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)
1186	PPCODE:	1425	PPCODE:
1187	{	1426	{
1188	int fd = s_fileno_croak (fh, 0);	1427	int fd = s_fileno_croak (fh, 0);
1189	dREQ;	1428	dREQ;
1190		1429
…		…
1196		1435
1197	REQ_SEND;	1436	REQ_SEND;
1198	}	1437	}
1199		1438
1200	void	1439	void
1201	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)
1202	ALIAS:	1441	ALIAS:
1203	aio_read = EIO_READ	1442	aio_read = EIO_READ
1204	aio_write = EIO_WRITE	1443	aio_write = EIO_WRITE
1205	PPCODE:	1444	PPCODE:
1206	{	1445	{
…		…
1222	len = svlen - dataoffset;	1461	len = svlen - dataoffset;
1223	}	1462	}
1224	else	1463	else
1225	{	1464	{
1226	/* read: check type and grow scalar as necessary */	1465	/* read: check type and grow scalar as necessary */
1227	SvUPGRADE (data, SVt_PV);
1228	if (SvLEN (data) >= SvCUR (data))	1466	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1229	svptr = SvGROW (data, len + dataoffset + 1);	1467	svptr = sv_grow (data, len + dataoffset + 1);
1230	else if (SvCUR (data) < len + dataoffset)	1468	else if (SvCUR (data) < len + dataoffset)
1231	croak ("length + dataoffset outside of scalar, and cannot grow");	1469	croak ("length + dataoffset outside of scalar, and cannot grow");
1232	}	1470	}
1233		1471
1234	{	1472	{
…		…
1252	REQ_SEND;	1490	REQ_SEND;
1253	}	1491	}
1254	}	1492	}
1255		1493
1256	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
1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1535	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1258	ALIAS:	1536	ALIAS:
1259	aio_readlink = EIO_READLINK	1537	aio_readlink = EIO_READLINK
1260	aio_realpath = EIO_REALPATH	1538	aio_realpath = EIO_REALPATH
1261	PPCODE:	1539	PPCODE:
1262	{	1540	{
…		…
1267		1545
1268	REQ_SEND;	1546	REQ_SEND;
1269	}	1547	}
1270		1548
1271	void	1549	void
1272	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)
1273	PPCODE:	1551	PPCODE:
1274	{	1552	{
1275	int ifd = s_fileno_croak (in_fh , 0);	1553	int ifd = s_fileno_croak (in_fh , 0);
1276	int ofd = s_fileno_croak (out_fh, 1);	1554	int ofd = s_fileno_croak (out_fh, 1);
1277	dREQ;	1555	dREQ;
1278		1556
1279	req->type = EIO_SENDFILE;	1557	req->type = EIO_SENDFILE;
1280	req->sv1 = newSVsv (out_fh);	1558	req->sv1 = newSVsv (out_fh);
1281	req->int1 = ofd;	1559	req->int1 = ofd;
…		…
1286		1564
1287	REQ_SEND;	1565	REQ_SEND;
1288	}	1566	}
1289		1567
1290	void	1568	void
1291	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)
1292	PPCODE:	1570	PPCODE:
1293	{	1571	{
1294	int fd = s_fileno_croak (fh, 0);	1572	int fd = s_fileno_croak (fh, 0);
1295	dREQ;	1573	dREQ;
1296		1574
1297	req->type = EIO_READAHEAD;	1575	req->type = EIO_READAHEAD;
1298	req->sv1 = newSVsv (fh);	1576	req->sv1 = newSVsv (fh);
1299	req->int1 = fd;	1577	req->int1 = fd;
…		…
1302		1580
1303	REQ_SEND;	1581	REQ_SEND;
1304	}	1582	}
1305		1583
1306	void	1584	void
1307	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1585	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1308	ALIAS:	1586	ALIAS:
1309	aio_stat = EIO_STAT	1587	aio_stat = EIO_STAT
1310	aio_lstat = EIO_LSTAT	1588	aio_lstat = EIO_LSTAT
1311	aio_statvfs = EIO_STATVFS	1589	aio_statvfs = EIO_STATVFS
1312	PPCODE:	1590	PPCODE:
…		…
1321	UV	1599	UV
1322	major (UV dev)	1600	major (UV dev)
1323	ALIAS:	1601	ALIAS:
1324	minor = 1	1602	minor = 1
1325	CODE:	1603	CODE:
1326	RETVAL = ix ? major (dev) : minor (dev);	1604	RETVAL = ix ? minor (dev) : major (dev);
1327	OUTPUT:	1605	OUTPUT:
1328	RETVAL	1606	RETVAL
1329		1607
1330	UV	1608	UV
1331	makedev (UV maj, UV min)	1609	makedev (UV maj, UV min)
…		…
1333	RETVAL = makedev (maj, min);	1611	RETVAL = makedev (maj, min);
1334	OUTPUT:	1612	OUTPUT:
1335	RETVAL	1613	RETVAL
1336		1614
1337	void	1615	void
1338	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)
1339	PPCODE:	1617	PPCODE:
1340	{	1618	{
1341	dREQ;	1619	dREQ;
1342		1620
1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1621	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1346		1624
1347	REQ_SEND;	1625	REQ_SEND;
1348	}	1626	}
1349		1627
1350	void	1628	void
1351	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)
1352	PPCODE:	1630	PPCODE:
1353	{	1631	{
1354	dREQ;	1632	dREQ;
1355		1633
1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1358		1636
1359	REQ_SEND;	1637	REQ_SEND;
1360	}	1638	}
1361		1639
1362	void	1640	void
1363	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)
1364	PPCODE:	1642	PPCODE:
1365	{	1643	{
1366	dREQ;	1644	dREQ;
1367		1645
1368	req->int2 = mode;	1646	req->int2 = mode;
…		…
1370		1648
1371	REQ_SEND;	1649	REQ_SEND;
1372	}	1650	}
1373		1651
1374	void	1652	void
1375	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)
1376	PPCODE:	1654	PPCODE:
1377	{	1655	{
1378	dREQ;	1656	dREQ;
1379		1657
1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1658	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1383		1661
1384	REQ_SEND;	1662	REQ_SEND;
1385	}	1663	}
1386		1664
1387	void	1665	void
1388	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1666	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1389	PPCODE:	1667	PPCODE:
1390	{	1668	{
1391	dREQ;	1669	dREQ;
1392		1670
1393	req->type = EIO_READDIR;	1671	req->type = EIO_READDIR;
…		…
1400		1678
1401	REQ_SEND;	1679	REQ_SEND;
1402	}	1680	}
1403		1681
1404	void	1682	void
1405	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1683	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1406	PPCODE:	1684	PPCODE:
1407	{	1685	{
1408	dREQ;	1686	dREQ;
1409		1687
1410	req->type = EIO_MKDIR;	1688	req->type = EIO_MKDIR;
…		…
1413		1691
1414	REQ_SEND;	1692	REQ_SEND;
1415	}	1693	}
1416		1694
1417	void	1695	void
1418	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1696	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1419	ALIAS:	1697	ALIAS:
1420	aio_unlink = EIO_UNLINK	1698	aio_unlink = EIO_UNLINK
1421	aio_rmdir = EIO_RMDIR	1699	aio_rmdir = EIO_RMDIR
1422	aio_readdir = EIO_READDIR	1700	aio_readdir = EIO_READDIR
1423	PPCODE:	1701	PPCODE:
…		…
1429		1707
1430	REQ_SEND;	1708	REQ_SEND;
1431	}	1709	}
1432		1710
1433	void	1711	void
1434	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1712	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1435	ALIAS:	1713	ALIAS:
1436	aio_link = EIO_LINK	1714	aio_link = EIO_LINK
1437	aio_symlink = EIO_SYMLINK	1715	aio_symlink = EIO_SYMLINK
1438	aio_rename = EIO_RENAME	1716	aio_rename = EIO_RENAME
1439	PPCODE:	1717	PPCODE:
…		…
1448		1726
1449	REQ_SEND;	1727	REQ_SEND;
1450	}	1728	}
1451		1729
1452	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
1453	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)
1454	PPCODE:	1748	PPCODE:
1455	{	1749	{
1456	dREQ;	1750	dREQ;
1457		1751
1458	req->type = EIO_MKNOD;	1752	req->type = EIO_MKNOD;
…		…
1462		1756
1463	REQ_SEND;	1757	REQ_SEND;
1464	}	1758	}
1465		1759
1466	void	1760	void
1467	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)
1468	ALIAS:	1762	ALIAS:
1469	aio_mtouch = EIO_MTOUCH	1763	aio_mtouch = EIO_MTOUCH
1470	aio_msync = EIO_MSYNC	1764	aio_msync = EIO_MSYNC
1471	PPCODE:	1765	PPCODE:
1472	{	1766	{
1473	STRLEN svlen;	1767	STRLEN svlen;
1474	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1475	UV len = SvUV (length);	1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1476		1773
1477	if (offset < 0)	1774	if (offset < 0)
1478	offset += svlen;	1775	offset += svlen;
1479		1776
1480	if (offset < 0 || offset > svlen)	1777	if (offset < 0 || offset > svlen)
…		…
1495	REQ_SEND;	1792	REQ_SEND;
1496	}	1793	}
1497	}	1794	}
1498		1795
1499	void	1796	void
1500	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)
1501	PPCODE:	1798	PPCODE:
1502	{	1799	{
1503	STRLEN svlen;	1800	STRLEN svlen;
1504	char *svptr = SvPVbyte (data, svlen);	1801	char *svptr = SvPVbyte (data, svlen);
1505	UV len = SvUV (length);	1802	UV len = SvUV (length);
…		…
1524	REQ_SEND;	1821	REQ_SEND;
1525	}	1822	}
1526	}	1823	}
1527		1824
1528	void	1825	void
1529	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1826	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1530	PPCODE:	1827	PPCODE:
1531	{	1828	{
1532	dREQ;	1829	dREQ;
1533		1830
1534	req->type = EIO_MLOCKALL;	1831	req->type = EIO_MLOCKALL;
…		…
1536		1833
1537	REQ_SEND;	1834	REQ_SEND;
1538	}	1835	}
1539		1836
1540	void	1837	void
1541	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)
1542	PPCODE:	1839	PPCODE:
1543	{	1840	{
1544	int fd = s_fileno_croak (fh, 0);	1841	int fd = s_fileno_croak (fh, 0);
1545	dREQ;	1842	dREQ;
1546		1843
…		…
1559		1856
1560	REQ_SEND;	1857	REQ_SEND;
1561	}	1858	}
1562		1859
1563	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
1564	aio_busy (double delay, SV *callback=&PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
1565	PPCODE:	1900	PPCODE:
1566	{	1901	{
1567	dREQ;	1902	dREQ;
1568		1903
1569	req->type = EIO_BUSY;	1904	req->type = EIO_BUSY;
…		…
1571		1906
1572	REQ_SEND;	1907	REQ_SEND;
1573	}	1908	}
1574		1909
1575	void	1910	void
1576	aio_group (SV *callback=&PL_sv_undef)	1911	aio_group (SV *callback = &PL_sv_undef)
1577	PPCODE:	1912	PPCODE:
1578	{	1913	{
1579	dREQ;	1914	dREQ;
1580		1915
1581	req->type = EIO_GROUP;	1916	req->type = EIO_GROUP;
1582		1917
		1918	PUTBACK;
1583	req_submit (req);	1919	req_submit (req);
		1920	SPAGAIN;
		1921
1584	XPUSHs (req_sv (req, aio_grp_stash));	1922	XPUSHs (req_sv (req, aio_grp_stash));
1585	}	1923	}
1586		1924
1587	void	1925	void
1588	aio_nop (SV *callback=&PL_sv_undef)	1926	aio_nop (SV *callback = &PL_sv_undef)
1589	ALIAS:	1927	ALIAS:
1590	aio_nop = EIO_NOP	1928	aio_nop = EIO_NOP
1591	aio_sync = EIO_SYNC	1929	aio_sync = EIO_SYNC
1592	PPCODE:	1930	PPCODE:
1593	{	1931	{
…		…
1597		1935
1598	REQ_SEND;	1936	REQ_SEND;
1599	}	1937	}
1600		1938
1601	int	1939	int
1602	aioreq_pri (int pri = 0)	1940	aioreq_pri (int pri = NO_INIT)
1603	CODE:	1941	CODE:
1604	RETVAL = next_pri;	1942	RETVAL = next_pri;
1605	if (items > 0)	1943	if (items > 0)
1606	{	1944	{
1607	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1945	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2035	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1698	OUTPUT:	2036	OUTPUT:
1699	RETVAL	2037	RETVAL
1700		2038
1701	void	2039	void
1702	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)
1703	PPCODE:	2041	PPCODE:
1704	sv_unmagic (scalar, MMAP_MAGIC);	2042	sv_clear_foreign (scalar);
1705	{	2043	{
1706	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;
1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2045	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1708	if (addr == (void *)-1)	2046	if (addr == (void *)-1)
1709	XSRETURN_NO;	2047	XSRETURN_NO;
1710		2048
1711	sv_force_normal (scalar);	2049	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1712
1713	/* we store the length in mg_obj, as namlen is I32 :/ */
1714	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1715	->mg_obj = (SV *)length;
1716
1717	SvUPGRADE (scalar, SVt_PV); /* nop... */
1718		2050
1719	if (!(prot & PROT_WRITE))	2051	if (!(prot & PROT_WRITE))
1720	SvREADONLY_on (scalar);	2052	SvREADONLY_on (scalar);
1721		2053
1722	if (SvLEN (scalar))
1723	Safefree (SvPVX (scalar));
1724
1725	SvPVX (scalar) = (char *)addr;
1726	SvCUR_set (scalar, length);
1727	SvLEN_set (scalar, 0);
1728	SvPOK_only (scalar);
1729
1730	XSRETURN_YES;	2054	XSRETURN_YES;
1731	}	2055	}
1732		2056
1733	void	2057	void
1734	munmap (SV *scalar)	2058	munmap (SV *scalar)
1735	CODE:	2059	CODE:
1736	sv_unmagic (scalar, MMAP_MAGIC);	2060	sv_clear_foreign (scalar);
1737		2061
1738	int	2062	int
1739	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)
1740	ALIAS:	2064	ALIAS:
1741	mprotect = 1	2065	mprotect = 1
1742	CODE:	2066	CODE:
1743	{	2067	{
1744	STRLEN svlen;	2068	STRLEN svlen;
1745	void *addr = SvPVbyte (scalar, svlen);	2069	void *addr = SvPVbyte (scalar, svlen);
1746	size_t len = SvUV (length);	2070	STRLEN len = SvUV (length);
1747		2071
1748	if (offset < 0)	2072	if (offset < 0)
1749	offset += svlen;	2073	offset += svlen;
1750		2074
1751	if (offset < 0 || offset > svlen)	2075	if (offset < 0 || offset > svlen)
…		…
1765	}	2089	}
1766	OUTPUT:	2090	OUTPUT:
1767	RETVAL	2091	RETVAL
1768		2092
1769	int	2093	int
1770	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2094	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1771	CODE:	2095	CODE:
1772	{	2096	{
1773	STRLEN svlen;	2097	STRLEN svlen;
1774	void *addr = SvPVbyte (scalar, svlen);	2098	void *addr = SvPVbyte (scalar, svlen);
1775	size_t len = SvUV (length);	2099	size_t len = SvUV (length);
1776		2100
1777	if (offset < 0)	2101	if (offset < 0)
1778	offset += svlen;	2102	offset += svlen;
1779		2103
…		…
1831	#else	2155	#else
1832	RETVAL = EIO_ENOSYS ();	2156	RETVAL = EIO_ENOSYS ();
1833	#endif	2157	#endif
1834	OUTPUT:	2158	OUTPUT:
1835	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	#if HAVE_TIMERFD
		2236	int res;
		2237	struct itimerspec its, ots;
		2238
		2239	ts_set (&its.it_interval, interval);
		2240	ts_set (&its.it_value , value);
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242
		2243	if (!res)
		2244	{
		2245	EXTEND (SP, 2);
		2246	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2247	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2248	}
		2249	#else
		2250	errno = ENOSYS;
		2251	#endif
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	#if HAVE_TIMERFD
		2260	int res;
		2261	struct itimerspec ots;
		2262	res = timerfd_gettime (fd, &ots);
		2263
		2264	if (!res)
		2265	{
		2266	EXTEND (SP, 2);
		2267	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2268	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2269	}
		2270	#else
		2271	errno = ENOSYS;
		2272	#endif
		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	}
1836		2346
1837	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1838	CODE:	2348	CODE:
1839	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);
1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2350	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1875	cancel (aio_req_ornot req)	2385	cancel (aio_req_ornot req)
1876	CODE:	2386	CODE:
1877	eio_cancel (req);	2387	eio_cancel (req);
1878		2388
1879	void	2389	void
1880	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2390	cb (aio_req_ornot req, SV *callback = NO_INIT)
1881	PPCODE:	2391	PPCODE:
1882	{	2392	{
1883	if (GIMME_V != G_VOID)	2393	if (GIMME_V != G_VOID)
1884	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);
1885		2395
1886	if (items > 1)	2396	if (items > 1)
1887	{	2397	{
1888	SV *cb_cv =get_cb (callback);	2398	SV *cb_cv = get_cb (callback);
1889		2399
1890	SvREFCNT_dec (req->callback);	2400	SvREFCNT_dec (req->callback);
1891	req->callback = SvREFCNT_inc (cb_cv);	2401	req->callback = SvREFCNT_inc (cb_cv);
1892	}	2402	}
1893	}	2403	}
…		…
1950	limit (aio_req grp, int limit)	2460	limit (aio_req grp, int limit)
1951	CODE:	2461	CODE:
1952	eio_grp_limit (grp, limit);	2462	eio_grp_limit (grp, limit);
1953		2463
1954	void	2464	void
1955	feed (aio_req grp, SV *callback=&PL_sv_undef)	2465	feed (aio_req grp, SV *callback = &PL_sv_undef)
1956	CODE:	2466	CODE:
1957	{	2467	{
1958	SvREFCNT_dec (grp->sv2);	2468	SvREFCNT_dec (grp->sv2);
1959	grp->sv2 = newSVsv (callback);	2469	grp->sv2 = newSVsv (callback);
1960	grp->feed = aio_grp_feed;	2470	grp->feed = aio_grp_feed;

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