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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.213 by root, Tue Apr 10 05:01:33 2012 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
…		…
19		21
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	23	# include <sys/mman.h>
22	#endif	24	#endif
23		25
24	#if __linux__	26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	32	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	33	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	34	# include <linux/types.h>
28	# include <linux/fiemap.h>	35	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	36	# define HAVE_FIEMAP 1
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
101		108
102	/*****************************************************************************/	109	/*****************************************************************************/
103		110
		111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
104	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
107		131
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	132	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
114	STRLEN stroffset; \	138	STRLEN stroffset; \
115	SV *self;	139	SV *self;
116		140
117	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
118		142
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	143	#include "libeio/eio.h"
121		144
122	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
…		…
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	165	# endif
143	#endif	166	#endif
144		167
145	/* defines all sorts of constants to 0 unless they are already defined */	168	/* defines all sorts of constants to 0 unless they are already defined */
		169	/* also provides const_iv_ and const_niv_ macros for them */
146	#include "def0.h"	170	#include "def0.h"
147		171
148	#ifndef makedev	172	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	173	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	174	#endif
…		…
153	#endif	177	#endif
154	#ifndef minor	178	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	179	# define minor(dev) ((dev) & 0xff)
156	#endif	180	#endif
157		181
158	#ifndef PAGESIZE	182	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	184	#endif
		185
		186	/*****************************************************************************/
		187
		188	#if !_POSIX_MAPPED_FILES
		189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
161		280
162	/*****************************************************************************/	281	/*****************************************************************************/
163		282
164	static void	283	static void
165	fiemap (eio_req *req)	284	fiemap (eio_req *req)
166	{	285	{
167	req->result = -1;	286	req->result = -1;
168		287
169	#if HAVE_FIEMAP	288	#if HAVE_FIEMAP
		289	/* assume some c99 */
		290	struct fiemap *fiemap = 0;
		291	size_t end_offset;
170	int count = req->int3;	292	int count = req->int3;
171		293
172	/* heuristic: first try with 64 extents if we don't know how many, */	294	req->flags |= EIO_FLAG_PTR1_FREE;
173	/* as most files have (hopefully) fewer than this many extents */	295
174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
175	if (count < 0)	298	if (count < 0)
176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	299	count = 8;
		300
		301	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		302	errno = ENOMEM;
		303	if (!fiemap)
		304	return;
		305
		306	req->ptr1 = fiemap;
		307
		308	fiemap->fm_start = req->offs;
		309	fiemap->fm_length = req->size;
		310	fiemap->fm_flags = req->int2;
		311	fiemap->fm_extent_count = count;
		312
		313	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		314	return;
		315
		316	if (req->int3 >= 0 /* not autosizing */
		317	|| !fiemap->fm_mapped_extents /* no more extents */
		318	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		319	goto done;
		320
		321	/* else we have to loop -
		322	* it would be tempting (actually I tried that first) to just query the
		323	* number of extents needed, but linux often feels like not returning all
		324	* extents, without telling us it left any out. this complicates
		325	* this quite a bit.
		326	*/
		327
		328	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
177		329
178	for (;;)	330	for (;;)
179	{	331	{
		332	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		333	char scratch[3072];
		334	struct fiemap *incmap = (struct fiemap *)scratch;
		335
		336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		338	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		339	incmap->fm_flags = fiemap->fm_flags;
		340	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		341
		342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		343	return;
		344
		345	if (!incmap->fm_mapped_extents)
		346	goto done;
		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181	errno = ENOMEM;	350	errno = ENOMEM;
182	if (!fiemap)	351	if (!fiemap)
183	return;	352	return;
184		353
185	req->ptr1 = fiemap;	354	req->ptr1 = fiemap;
186	req->flags |= EIO_FLAG_PTR1_FREE;
187		355
188	fiemap->fm_start = req->offs;	356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
189	fiemap->fm_length = req->size;	357	{
190	fiemap->fm_flags = req->int2;	358	struct fiemap_extent *e = incmap->fm_extents + count;
191	fiemap->fm_extent_count = count;
192		359
193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	360	if (e->fe_logical + e->fe_length >= end_offset)
194	return;	361	goto done;
195		362
196	if (req->int3 >= 0)	363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
197	break; /* when not autosizing we are done */
198		364
199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
200	break; /* autosizing successful, we are done */	366	goto done;
201		367
202	fiemap->fm_flags = req->int2;	368	}
203	fiemap->fm_extent_count = 0;
204
205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206	return;
207
208	count = fiemap->fm_mapped_extents;
209
210	free (fiemap);
211	}	369	}
212		370
		371	done:
213	req->result = 0;	372	req->result = 0;
214		373
215	#else	374	#else
216	errno = ENOSYS;	375	errno = ENOSYS;
217	#endif	376	#endif
…		…
264	}	423	}
265		424
266	static SV *	425	static SV *
267	newSVaio_wd (aio_wd wd)	426	newSVaio_wd (aio_wd wd)
268	{	427	{
269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	428	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
270	}	429	}
271		430
272	static aio_req	431	static aio_req
273	SvAIO_REQ (SV *sv)	432	SvAIO_REQ (SV *sv)
274	{	433	{
…		…
293	|| SvTYPE (SvRV (sv)) != SVt_PVMG	452	|| SvTYPE (SvRV (sv)) != SVt_PVMG
294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	453	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	454	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296		455
297	return (aio_wd)(long)SvIVX (SvRV (sv));	456	return (aio_wd)(long)SvIVX (SvRV (sv));
		457	}
		458
		459	static SV *
		460	newmortalFH (int fd, int flags)
		461	{
		462	if (fd < 0)
		463	return &PL_sv_undef;
		464
		465	GV *gv = (GV *)sv_newmortal ();
		466	char sym[64];
		467	int symlen;
		468
		469	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		470	gv_init (gv, aio_stash, sym, symlen, 0);
		471
		472	symlen = snprintf (
		473	sym,
		474	sizeof (sym),
		475	"%s&=%d",
		476	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		477	fd
		478	);
		479
		480	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		481	? (SV *)gv : &PL_sv_undef;
298	}	482	}
299		483
300	static void	484	static void
301	aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
302	{	486	{
…		…
430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	614	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
431	}	615	}
432	break;	616	break;
433		617
434	case EIO_OPEN:	618	case EIO_OPEN:
435	{	619	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;	620	break;
464		621
465	case EIO_STATVFS:	622	case EIO_STATVFS:
466	case EIO_FSTATVFS:	623	case EIO_FSTATVFS:
467	{	624	{
…		…
470	#ifndef _WIN32	627	#ifndef _WIN32
471	if (req->result >= 0)	628	if (req->result >= 0)
472	{	629	{
473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474	HV *hv = newHV ();	631	HV *hv = newHV ();
		632	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		633	* chooses to make it a struct.
		634	*/
		635	unsigned long fsid = 0;
		636	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
475		637
476	rv = sv_2mortal (newRV_noinc ((SV *)hv));	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
477		639
478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	640	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);	641	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);	643	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);	644	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);	645	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);	646	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);	647	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);	648	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	649	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);	650	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489	}	651	}
490	#endif	652	#endif
491		653
…		…
542	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
543	PUSHs (sv_result);	705	PUSHs (sv_result);
544	}	706	}
545	break;	707	break;
546		708
		709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
547	case EIO_CUSTOM:	733	case EIO_CUSTOM:
548	if (req->feed == fiemap)	734	if (req->feed == fiemap)
549	{	735	{
550	#if HAVE_FIEMAP	736	#if HAVE_FIEMAP
551	if (!req->result)	737	if (!req->result)
…		…
656	{	842	{
657	while (eio_nreqs ())	843	while (eio_nreqs ())
658	{	844	{
659	int size;	845	int size;
660		846
661	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
662	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
663	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
664		850
665	if (size)	851	if (size)
666	return;	852	return;
667		853
668	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
669		855
670	s_epipe_wait (&respipe);	856	s_epipe_wait (&respipe);
671	}	857	}
672	}	858	}
673		859
…		…
694	create_respipe ();	880	create_respipe ();
695		881
696	if (eio_init (want_poll, done_poll) < 0)	882	if (eio_init (want_poll, done_poll) < 0)
697	croak ("IO::AIO: unable to initialise eio library");	883	croak ("IO::AIO: unable to initialise eio library");
698	}	884	}
699
700	/*****************************************************************************/
701
702	#if !_POSIX_MAPPED_FILES
703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
704	# define munmap(addr,length) EIO_ENOSYS ()
705	#endif
706
707	#if !_POSIX_MEMORY_PROTECTION
708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
709	# define PROT_NONE 0
710	# define PROT_WRITE 0
711	# define MAP_PRIVATE 0
712	# define MAP_SHARED 0
713	# define MAP_FIXED 0
714	#endif
715
716	#define MMAP_MAGIC PERL_MAGIC_ext
717
718	static int ecb_cold
719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
720	{
721	int old_errno = errno;
722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723	errno = old_errno;
724
725	mg->mg_obj = 0; /* just in case */
726
727	SvREADONLY_off (sv);
728
729	if (SvPVX (sv) != mg->mg_ptr)
730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732	SvCUR_set (sv, 0);
733	SvPVX (sv) = 0;
734	SvOK_off (sv);
735
736	return 0;
737	}
738
739	static MGVTBL mmap_vtbl = {
740	0, 0, 0, 0, mmap_free
741	};
742		885
743	/*****************************************************************************/	886	/*****************************************************************************/
744		887
745	static SV *	888	static SV *
746	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
…		…
842	req_set_path1 (req, fh_or_path);	985	req_set_path1 (req, fh_or_path);
843	break;	986	break;
844	}	987	}
845	}	988	}
846		989
		990	/*****************************************************************************/
		991
		992	static void
		993	ts_set (struct timespec *ts, NV value)
		994	{
		995	ts->tv_sec = value;
		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
847	XS(boot_IO__AIO) ecb_cold;	1007	XS(boot_IO__AIO) ecb_cold;
848		1008
849	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
850		1010
851	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
…		…
858	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
859	# define const_niv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
860	# define const_iv(name) { # name, (IV) name },	1020	# define const_iv(name) { # name, (IV) name },
861	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
862		1022
863	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1023	/* you have to re-run ./gendef0 after adding/removing any constants here */
864		1024	/* the first block can be undef if missing */
865	const_iv (ENOSYS)	1025	const_iv (ENOSYS)
866	const_iv (EXDEV)	1026	const_iv (EXDEV)
867	const_iv (EBADR)	1027	const_iv (EBADR)
		1028
		1029	/* for lseek */
		1030	const_iv (SEEK_DATA)
		1031	const_iv (SEEK_HOLE)
		1032
		1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1038	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1039
		1040	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1041	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1045
		1046	/* the second block will be 0 when missing */
		1047	const_iv (O_ACCMODE)
868		1048
869	const_iv (O_RDONLY)	1049	const_iv (O_RDONLY)
870	const_iv (O_WRONLY)	1050	const_iv (O_WRONLY)
871	const_iv (O_RDWR)	1051	const_iv (O_RDWR)
872	const_iv (O_CREAT)	1052	const_iv (O_CREAT)
…		…
886	const_iv (O_SEARCH)	1066	const_iv (O_SEARCH)
887	const_iv (O_DIRECTORY)	1067	const_iv (O_DIRECTORY)
888	const_iv (O_DSYNC)	1068	const_iv (O_DSYNC)
889	const_iv (O_RSYNC)	1069	const_iv (O_RSYNC)
890	const_iv (O_SYNC)	1070	const_iv (O_SYNC)
		1071	const_iv (O_PATH)
		1072	const_iv (O_TMPFILE)
891	const_iv (O_TTY_INIT)	1073	const_iv (O_TTY_INIT)
892		1074
893	const_iv (S_IFIFO)	1075	const_iv (S_IFIFO)
894	const_iv (S_IFCHR)	1076	const_iv (S_IFCHR)
895	const_iv (S_IFBLK)	1077	const_iv (S_IFBLK)
…		…
897	const_iv (S_IFREG)	1079	const_iv (S_IFREG)
898	const_iv (S_IFDIR)	1080	const_iv (S_IFDIR)
899	const_iv (S_IFWHT)	1081	const_iv (S_IFWHT)
900	const_iv (S_IFSOCK)	1082	const_iv (S_IFSOCK)
901	const_iv (S_IFMT)	1083	const_iv (S_IFMT)
902
903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
909
910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
915		1084
916	const_iv (ST_RDONLY)	1085	const_iv (ST_RDONLY)
917	const_iv (ST_NOSUID)	1086	const_iv (ST_NOSUID)
918	const_iv (ST_NODEV)	1087	const_iv (ST_NODEV)
919	const_iv (ST_NOEXEC)	1088	const_iv (ST_NOEXEC)
…		…
929	const_iv (PROT_NONE)	1098	const_iv (PROT_NONE)
930	const_iv (PROT_EXEC)	1099	const_iv (PROT_EXEC)
931	const_iv (PROT_READ)	1100	const_iv (PROT_READ)
932	const_iv (PROT_WRITE)	1101	const_iv (PROT_WRITE)
933		1102
934	/*const_iv (MAP_FIXED)*/
935	const_iv (MAP_PRIVATE)	1103	const_iv (MAP_PRIVATE)
936	const_iv (MAP_SHARED)	1104	const_iv (MAP_SHARED)
		1105	const_iv (MAP_FIXED)
937	const_iv (MAP_ANONYMOUS)	1106	const_iv (MAP_ANONYMOUS)
938		1107
939	/* linuxish */	1108	/* linuxish */
940	const_iv (MAP_HUGETLB)
941	const_iv (MAP_LOCKED)	1109	const_iv (MAP_LOCKED)
942	const_iv (MAP_NORESERVE)	1110	const_iv (MAP_NORESERVE)
943	const_iv (MAP_POPULATE)	1111	const_iv (MAP_POPULATE)
944	const_iv (MAP_NONBLOCK)	1112	const_iv (MAP_NONBLOCK)
		1113	const_iv (MAP_GROWSDOWN)
		1114	const_iv (MAP_32BIT)
		1115	const_iv (MAP_HUGETLB)
		1116	const_iv (MAP_STACK)
		1117
		1118	const_iv (MREMAP_MAYMOVE)
		1119	const_iv (MREMAP_FIXED)
		1120
		1121	const_iv (F_DUPFD_CLOEXEC)
		1122
		1123	const_iv (F_OFD_GETLK)
		1124	const_iv (F_OFD_SETLK)
		1125	const_iv (F_OFD_GETLKW)
		1126
		1127	const_iv (FIFREEZE)
		1128	const_iv (FITHAW)
		1129	const_iv (FITRIM)
		1130	const_iv (FICLONE)
		1131	const_iv (FICLONERANGE)
		1132	const_iv (FIDEDUPERANGE)
		1133
		1134	const_iv (FS_IOC_GETFLAGS)
		1135	const_iv (FS_IOC_SETFLAGS)
		1136	const_iv (FS_IOC_GETVERSION)
		1137	const_iv (FS_IOC_SETVERSION)
		1138	const_iv (FS_IOC_FIEMAP)
		1139	const_iv (FS_IOC_FSGETXATTR)
		1140	const_iv (FS_IOC_FSSETXATTR)
		1141	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1142	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1143	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1144
		1145	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1146
		1147	const_iv (FS_SECRM_FL)
		1148	const_iv (FS_UNRM_FL)
		1149	const_iv (FS_COMPR_FL)
		1150	const_iv (FS_SYNC_FL)
		1151	const_iv (FS_IMMUTABLE_FL)
		1152	const_iv (FS_APPEND_FL)
		1153	const_iv (FS_NODUMP_FL)
		1154	const_iv (FS_NOATIME_FL)
		1155	const_iv (FS_DIRTY_FL)
		1156	const_iv (FS_COMPRBLK_FL)
		1157	const_iv (FS_NOCOMP_FL)
		1158	const_iv (FS_ENCRYPT_FL)
		1159	const_iv (FS_BTREE_FL)
		1160	const_iv (FS_INDEX_FL)
		1161	const_iv (FS_JOURNAL_DATA_FL)
		1162	const_iv (FS_NOTAIL_FL)
		1163	const_iv (FS_DIRSYNC_FL)
		1164	const_iv (FS_TOPDIR_FL)
		1165	const_iv (FS_FL_USER_MODIFIABLE)
		1166
		1167	const_iv (FS_XFLAG_REALTIME)
		1168	const_iv (FS_XFLAG_PREALLOC)
		1169	const_iv (FS_XFLAG_IMMUTABLE)
		1170	const_iv (FS_XFLAG_APPEND)
		1171	const_iv (FS_XFLAG_SYNC)
		1172	const_iv (FS_XFLAG_NOATIME)
		1173	const_iv (FS_XFLAG_NODUMP)
		1174	const_iv (FS_XFLAG_RTINHERIT)
		1175	const_iv (FS_XFLAG_PROJINHERIT)
		1176	const_iv (FS_XFLAG_NOSYMLINKS)
		1177	const_iv (FS_XFLAG_EXTSIZE)
		1178	const_iv (FS_XFLAG_EXTSZINHERIT)
		1179	const_iv (FS_XFLAG_NODEFRAG)
		1180	const_iv (FS_XFLAG_FILESTREAM)
		1181	const_iv (FS_XFLAG_DAX)
		1182	const_iv (FS_XFLAG_HASATTR)
945		1183
946	const_iv (FIEMAP_FLAG_SYNC)	1184	const_iv (FIEMAP_FLAG_SYNC)
947	const_iv (FIEMAP_FLAG_XATTR)	1185	const_iv (FIEMAP_FLAG_XATTR)
948	const_iv (FIEMAP_FLAGS_COMPAT)	1186	const_iv (FIEMAP_FLAGS_COMPAT)
949	const_iv (FIEMAP_EXTENT_LAST)	1187	const_iv (FIEMAP_EXTENT_LAST)
…		…
961	const_iv (SPLICE_F_MOVE)	1199	const_iv (SPLICE_F_MOVE)
962	const_iv (SPLICE_F_NONBLOCK)	1200	const_iv (SPLICE_F_NONBLOCK)
963	const_iv (SPLICE_F_MORE)	1201	const_iv (SPLICE_F_MORE)
964	const_iv (SPLICE_F_GIFT)	1202	const_iv (SPLICE_F_GIFT)
965		1203
966	const_iv (SEEK_DATA)	1204	const_iv (EFD_CLOEXEC)
		1205	const_iv (EFD_NONBLOCK)
967	const_iv (SEEK_HOLE)	1206	const_iv (EFD_SEMAPHORE)
968		1207
969	/* libeio constants */	1208	const_iv (CLOCK_REALTIME)
		1209	const_iv (CLOCK_MONOTONIC)
		1210	const_iv (CLOCK_BOOTTIME)
		1211	const_iv (CLOCK_REALTIME_ALARM)
		1212	const_iv (CLOCK_BOOTTIME_ALARM)
		1213
		1214	const_iv (TFD_NONBLOCK)
		1215	const_iv (TFD_CLOEXEC)
		1216
		1217	const_iv (TFD_TIMER_ABSTIME)
		1218	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1219
		1220	/* these are libeio constants, and are independent of gendef0 */
970	const_eio (SEEK_SET)	1221	const_eio (SEEK_SET)
971	const_eio (SEEK_CUR)	1222	const_eio (SEEK_CUR)
972	const_eio (SEEK_END)	1223	const_eio (SEEK_END)
973		1224
974	const_eio (MCL_FUTURE)	1225	const_eio (MCL_FUTURE)
…		…
983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1234	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
984	const_eio (SYNC_FILE_RANGE_WRITE)	1235	const_eio (SYNC_FILE_RANGE_WRITE)
985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1236	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
986		1237
987	const_eio (FALLOC_FL_KEEP_SIZE)	1238	const_eio (FALLOC_FL_KEEP_SIZE)
		1239	const_eio (FALLOC_FL_PUNCH_HOLE)
		1240	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1241	const_eio (FALLOC_FL_ZERO_RANGE)
		1242	const_eio (FALLOC_FL_INSERT_RANGE)
		1243	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1244
		1245	const_eio (RENAME_NOREPLACE)
		1246	const_eio (RENAME_EXCHANGE)
		1247	const_eio (RENAME_WHITEOUT)
988		1248
989	const_eio (READDIR_DENTS)	1249	const_eio (READDIR_DENTS)
990	const_eio (READDIR_DIRS_FIRST)	1250	const_eio (READDIR_DIRS_FIRST)
991	const_eio (READDIR_STAT_ORDER)	1251	const_eio (READDIR_STAT_ORDER)
992	const_eio (READDIR_FOUND_UNKNOWN)	1252	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1060	PROTOTYPE: $	1320	PROTOTYPE: $
1061	CODE:	1321	CODE:
1062	max_outstanding = maxreqs;	1322	max_outstanding = maxreqs;
1063		1323
1064	void	1324	void
1065	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1325	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1066	PPCODE:	1326	PPCODE:
1067	{	1327	{
1068	dREQ;	1328	dREQ;
1069		1329
1070	req->type = EIO_WD_OPEN;	1330	req->type = EIO_WD_OPEN;
…		…
1072		1332
1073	REQ_SEND;	1333	REQ_SEND;
1074	}	1334	}
1075		1335
1076	void	1336	void
1077	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1337	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1078	PPCODE:	1338	PPCODE:
1079	{	1339	{
1080	dREQ;	1340	dREQ;
1081		1341
1082	req->type = EIO_OPEN;	1342	req->type = EIO_OPEN;
…		…
1086		1346
1087	REQ_SEND;	1347	REQ_SEND;
1088	}	1348	}
1089		1349
1090	void	1350	void
1091	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1351	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1092	ALIAS:	1352	ALIAS:
1093	aio_fsync = EIO_FSYNC	1353	aio_fsync = EIO_FSYNC
1094	aio_fdatasync = EIO_FDATASYNC	1354	aio_fdatasync = EIO_FDATASYNC
1095	aio_syncfs = EIO_SYNCFS	1355	aio_syncfs = EIO_SYNCFS
1096	PPCODE:	1356	PPCODE:
1097	{	1357	{
1098	int fd = s_fileno_croak (fh, 0);	1358	int fd = s_fileno_croak (fh, 0);
1099	dREQ;	1359	dREQ;
1100		1360
1101	req->type = ix;	1361	req->type = ix;
1102	req->sv1 = newSVsv (fh);	1362	req->sv1 = newSVsv (fh);
1103	req->int1 = fd;	1363	req->int1 = fd;
1104		1364
1105	REQ_SEND;	1365	REQ_SEND;
1106	}	1366	}
1107		1367
1108	void	1368	void
1109	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1369	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1110	PPCODE:	1370	PPCODE:
1111	{	1371	{
1112	int fd = s_fileno_croak (fh, 0);	1372	int fd = s_fileno_croak (fh, 0);
1113	dREQ;	1373	dREQ;
1114		1374
1115	req->type = EIO_SYNC_FILE_RANGE;	1375	req->type = EIO_SYNC_FILE_RANGE;
1116	req->sv1 = newSVsv (fh);	1376	req->sv1 = newSVsv (fh);
1117	req->int1 = fd;	1377	req->int1 = fd;
…		…
1121		1381
1122	REQ_SEND;	1382	REQ_SEND;
1123	}	1383	}
1124		1384
1125	void	1385	void
1126	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1386	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1127	PPCODE:	1387	PPCODE:
1128	{	1388	{
1129	int fd = s_fileno_croak (fh, 0);	1389	int fd = s_fileno_croak (fh, 0);
1130	dREQ;	1390	dREQ;
1131		1391
1132	req->type = EIO_FALLOCATE;	1392	req->type = EIO_FALLOCATE;
1133	req->sv1 = newSVsv (fh);	1393	req->sv1 = newSVsv (fh);
1134	req->int1 = fd;	1394	req->int1 = fd;
…		…
1138		1398
1139	REQ_SEND;	1399	REQ_SEND;
1140	}	1400	}
1141		1401
1142	void	1402	void
1143	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1403	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1144	PPCODE:	1404	PPCODE:
1145	{	1405	{
1146	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1406	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1147	int fd = s_fileno_croak (fh, 0);	1407	int fd = s_fileno_croak (fh, 0);
1148	dREQ;	1408	dREQ;
1149		1409
1150	if (expect_false (close_fd < 0))	1410	if (expect_false (close_fd < 0))
1151	{	1411	{
1152	int pipefd [2];	1412	int pipefd [2];
…		…
1172		1432
1173	REQ_SEND;	1433	REQ_SEND;
1174	}	1434	}
1175		1435
1176	void	1436	void
1177	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1437	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1178	PPCODE:	1438	PPCODE:
1179	{	1439	{
1180	int fd = s_fileno_croak (fh, 0);	1440	int fd = s_fileno_croak (fh, 0);
1181	dREQ;	1441	dREQ;
1182		1442
…		…
1188		1448
1189	REQ_SEND;	1449	REQ_SEND;
1190	}	1450	}
1191		1451
1192	void	1452	void
1193	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1453	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1194	ALIAS:	1454	ALIAS:
1195	aio_read = EIO_READ	1455	aio_read = EIO_READ
1196	aio_write = EIO_WRITE	1456	aio_write = EIO_WRITE
1197	PPCODE:	1457	PPCODE:
1198	{	1458	{
…		…
1214	len = svlen - dataoffset;	1474	len = svlen - dataoffset;
1215	}	1475	}
1216	else	1476	else
1217	{	1477	{
1218	/* read: check type and grow scalar as necessary */	1478	/* read: check type and grow scalar as necessary */
1219	SvUPGRADE (data, SVt_PV);	1479	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1220	svptr = SvGROW (data, len + dataoffset + 1);	1480	svptr = sv_grow (data, len + dataoffset + 1);
		1481	else if (SvCUR (data) < len + dataoffset)
		1482	croak ("length + dataoffset outside of scalar, and cannot grow");
1221	}	1483	}
1222		1484
1223	{	1485	{
1224	dREQ;	1486	dREQ;
1225		1487
…		…
1241	REQ_SEND;	1503	REQ_SEND;
1242	}	1504	}
1243	}	1505	}
1244		1506
1245	void	1507	void
		1508	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1509	ALIAS:
		1510	aio_ioctl = EIO_IOCTL
		1511	aio_fcntl = EIO_FCNTL
		1512	PPCODE:
		1513	{
		1514	int fd = s_fileno_croak (fh, 0);
		1515	char *svptr;
		1516
		1517	if (SvPOK (arg) || !SvNIOK (arg))
		1518	{
		1519	STRLEN svlen;
		1520	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1521	#ifdef IOCPARM_LEN
		1522	STRLEN need = IOCPARM_LEN (request);
		1523	#else
		1524	STRLEN need = 256;
		1525	#endif
		1526
		1527	if (svlen < need)
		1528	svptr = SvGROW (arg, need);
		1529	}
		1530	else
		1531	svptr = (char *)SvIV (arg);
		1532
		1533	{
		1534	dREQ;
		1535
		1536	req->type = ix;
		1537	req->sv1 = newSVsv (fh);
		1538	req->int1 = fd;
		1539	req->int2 = (long)request;
		1540	req->sv2 = SvREFCNT_inc (arg);
		1541	req->ptr2 = svptr;
		1542
		1543	REQ_SEND;
		1544	}
		1545	}
		1546
		1547	void
1246	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1548	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1247	ALIAS:	1549	ALIAS:
1248	aio_readlink = EIO_READLINK	1550	aio_readlink = EIO_READLINK
1249	aio_realpath = EIO_REALPATH	1551	aio_realpath = EIO_REALPATH
1250	PPCODE:	1552	PPCODE:
1251	{	1553	{
…		…
1256		1558
1257	REQ_SEND;	1559	REQ_SEND;
1258	}	1560	}
1259		1561
1260	void	1562	void
1261	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1563	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1262	PPCODE:	1564	PPCODE:
1263	{	1565	{
1264	int ifd = s_fileno_croak (in_fh , 0);	1566	int ifd = s_fileno_croak (in_fh , 0);
1265	int ofd = s_fileno_croak (out_fh, 1);	1567	int ofd = s_fileno_croak (out_fh, 1);
1266	dREQ;	1568	dREQ;
1267		1569
1268	req->type = EIO_SENDFILE;	1570	req->type = EIO_SENDFILE;
1269	req->sv1 = newSVsv (out_fh);	1571	req->sv1 = newSVsv (out_fh);
1270	req->int1 = ofd;	1572	req->int1 = ofd;
…		…
1275		1577
1276	REQ_SEND;	1578	REQ_SEND;
1277	}	1579	}
1278		1580
1279	void	1581	void
1280	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1582	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1281	PPCODE:	1583	PPCODE:
1282	{	1584	{
1283	int fd = s_fileno_croak (fh, 0);	1585	int fd = s_fileno_croak (fh, 0);
1284	dREQ;	1586	dREQ;
1285		1587
1286	req->type = EIO_READAHEAD;	1588	req->type = EIO_READAHEAD;
1287	req->sv1 = newSVsv (fh);	1589	req->sv1 = newSVsv (fh);
1288	req->int1 = fd;	1590	req->int1 = fd;
…		…
1291		1593
1292	REQ_SEND;	1594	REQ_SEND;
1293	}	1595	}
1294		1596
1295	void	1597	void
1296	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1598	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1297	ALIAS:	1599	ALIAS:
1298	aio_stat = EIO_STAT	1600	aio_stat = EIO_STAT
1299	aio_lstat = EIO_LSTAT	1601	aio_lstat = EIO_LSTAT
1300	aio_statvfs = EIO_STATVFS	1602	aio_statvfs = EIO_STATVFS
1301	PPCODE:	1603	PPCODE:
…		…
1310	UV	1612	UV
1311	major (UV dev)	1613	major (UV dev)
1312	ALIAS:	1614	ALIAS:
1313	minor = 1	1615	minor = 1
1314	CODE:	1616	CODE:
1315	RETVAL = ix ? major (dev) : minor (dev);	1617	RETVAL = ix ? minor (dev) : major (dev);
1316	OUTPUT:	1618	OUTPUT:
1317	RETVAL	1619	RETVAL
1318		1620
1319	UV	1621	UV
1320	makedev (UV maj, UV min)	1622	makedev (UV maj, UV min)
…		…
1322	RETVAL = makedev (maj, min);	1624	RETVAL = makedev (maj, min);
1323	OUTPUT:	1625	OUTPUT:
1324	RETVAL	1626	RETVAL
1325		1627
1326	void	1628	void
1327	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1629	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1328	PPCODE:	1630	PPCODE:
1329	{	1631	{
1330	dREQ;	1632	dREQ;
1331		1633
1332	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1634	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1335		1637
1336	REQ_SEND;	1638	REQ_SEND;
1337	}	1639	}
1338		1640
1339	void	1641	void
1340	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1642	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1341	PPCODE:	1643	PPCODE:
1342	{	1644	{
1343	dREQ;	1645	dREQ;
1344		1646
1345	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1647	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1347		1649
1348	REQ_SEND;	1650	REQ_SEND;
1349	}	1651	}
1350		1652
1351	void	1653	void
1352	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1654	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1353	PPCODE:	1655	PPCODE:
1354	{	1656	{
1355	dREQ;	1657	dREQ;
1356		1658
1357	req->int2 = mode;	1659	req->int2 = mode;
…		…
1359		1661
1360	REQ_SEND;	1662	REQ_SEND;
1361	}	1663	}
1362		1664
1363	void	1665	void
1364	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1666	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1365	PPCODE:	1667	PPCODE:
1366	{	1668	{
1367	dREQ;	1669	dREQ;
1368		1670
1369	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1671	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1372		1674
1373	REQ_SEND;	1675	REQ_SEND;
1374	}	1676	}
1375		1677
1376	void	1678	void
1377	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1679	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1378	PPCODE:	1680	PPCODE:
1379	{	1681	{
1380	dREQ;	1682	dREQ;
1381		1683
1382	req->type = EIO_READDIR;	1684	req->type = EIO_READDIR;
…		…
1389		1691
1390	REQ_SEND;	1692	REQ_SEND;
1391	}	1693	}
1392		1694
1393	void	1695	void
1394	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1696	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1395	PPCODE:	1697	PPCODE:
1396	{	1698	{
1397	dREQ;	1699	dREQ;
1398		1700
1399	req->type = EIO_MKDIR;	1701	req->type = EIO_MKDIR;
…		…
1402		1704
1403	REQ_SEND;	1705	REQ_SEND;
1404	}	1706	}
1405		1707
1406	void	1708	void
1407	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1709	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1408	ALIAS:	1710	ALIAS:
1409	aio_unlink = EIO_UNLINK	1711	aio_unlink = EIO_UNLINK
1410	aio_rmdir = EIO_RMDIR	1712	aio_rmdir = EIO_RMDIR
1411	aio_readdir = EIO_READDIR	1713	aio_readdir = EIO_READDIR
1412	PPCODE:	1714	PPCODE:
…		…
1418		1720
1419	REQ_SEND;	1721	REQ_SEND;
1420	}	1722	}
1421		1723
1422	void	1724	void
1423	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1725	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1424	ALIAS:	1726	ALIAS:
1425	aio_link = EIO_LINK	1727	aio_link = EIO_LINK
1426	aio_symlink = EIO_SYMLINK	1728	aio_symlink = EIO_SYMLINK
1427	aio_rename = EIO_RENAME	1729	aio_rename = EIO_RENAME
1428	PPCODE:	1730	PPCODE:
…		…
1437		1739
1438	REQ_SEND;	1740	REQ_SEND;
1439	}	1741	}
1440		1742
1441	void	1743	void
		1744	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1745	PPCODE:
		1746	{
		1747	eio_wd wd2 = 0;
		1748	dREQ;
		1749
		1750	req->type = EIO_RENAME;
		1751	req_set_path1 (req, oldpath);
		1752	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1753	req->int2 = flags;
		1754	req->int3 = (long)wd2;
		1755
		1756	REQ_SEND;
		1757	}
		1758
		1759	void
1442	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1760	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1443	PPCODE:	1761	PPCODE:
1444	{	1762	{
1445	dREQ;	1763	dREQ;
1446		1764
1447	req->type = EIO_MKNOD;	1765	req->type = EIO_MKNOD;
…		…
1451		1769
1452	REQ_SEND;	1770	REQ_SEND;
1453	}	1771	}
1454		1772
1455	void	1773	void
1456	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1774	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1457	ALIAS:	1775	ALIAS:
1458	aio_mtouch = EIO_MTOUCH	1776	aio_mtouch = EIO_MTOUCH
1459	aio_msync = EIO_MSYNC	1777	aio_msync = EIO_MSYNC
1460	PPCODE:	1778	PPCODE:
1461	{	1779	{
1462	STRLEN svlen;	1780	STRLEN svlen;
1463	char *svptr = SvPVbyte (data, svlen);	1781	char *svptr = SvPVbyte (data, svlen);
1464	UV len = SvUV (length);	1782	UV len = SvUV (length);
		1783
		1784	if (flags < 0)
		1785	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1465		1786
1466	if (offset < 0)	1787	if (offset < 0)
1467	offset += svlen;	1788	offset += svlen;
1468		1789
1469	if (offset < 0 || offset > svlen)	1790	if (offset < 0 || offset > svlen)
…		…
1484	REQ_SEND;	1805	REQ_SEND;
1485	}	1806	}
1486	}	1807	}
1487		1808
1488	void	1809	void
1489	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1810	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1490	PPCODE:	1811	PPCODE:
1491	{	1812	{
1492	STRLEN svlen;	1813	STRLEN svlen;
1493	char *svptr = SvPVbyte (data, svlen);	1814	char *svptr = SvPVbyte (data, svlen);
1494	UV len = SvUV (length);	1815	UV len = SvUV (length);
…		…
1513	REQ_SEND;	1834	REQ_SEND;
1514	}	1835	}
1515	}	1836	}
1516		1837
1517	void	1838	void
1518	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1839	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1519	PPCODE:	1840	PPCODE:
1520	{	1841	{
1521	dREQ;	1842	dREQ;
1522		1843
1523	req->type = EIO_MLOCKALL;	1844	req->type = EIO_MLOCKALL;
…		…
1525		1846
1526	REQ_SEND;	1847	REQ_SEND;
1527	}	1848	}
1528		1849
1529	void	1850	void
1530	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1851	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1531	PPCODE:	1852	PPCODE:
1532	{	1853	{
1533	int fd = s_fileno_croak (fh, 0);	1854	int fd = s_fileno_croak (fh, 0);
1534	dREQ;	1855	dREQ;
1535		1856
1536	req->type = EIO_CUSTOM;	1857	req->type = EIO_CUSTOM;
1537	req->sv1 = newSVsv (fh);	1858	req->sv1 = newSVsv (fh);
1538	req->int1 = fd;	1859	req->int1 = fd;
…		…
1548		1869
1549	REQ_SEND;	1870	REQ_SEND;
1550	}	1871	}
1551		1872
1552	void	1873	void
		1874	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1875	PPCODE:
		1876	{
		1877	char *svptr = 0;
		1878
		1879	sv_clear_foreign (data);
		1880
		1881	if (length) /* known length, directly read into scalar */
		1882	{
		1883	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1884	svptr = sv_grow (data, length + 1);
		1885	else if (SvCUR (data) < length)
		1886	croak ("length outside of scalar, and cannot grow");
		1887	else
		1888	svptr = SvPVbyte_nolen (data);
		1889	}
		1890
		1891	{
		1892	dREQ;
		1893
		1894	req->type = EIO_SLURP;
		1895	req_set_path1 (req, pathname);
		1896	req->offs = offset;
		1897	req->size = length;
		1898	req->sv2 = SvREFCNT_inc (data);
		1899	req->ptr2 = svptr;
		1900
		1901	if (!SvREADONLY (data))
		1902	{
		1903	SvREADONLY_on (data);
		1904	req->flags |= FLAG_SV2_RO_OFF;
		1905	}
		1906
		1907	REQ_SEND;
		1908	}
		1909	}
		1910
		1911	void
1553	aio_busy (double delay, SV *callback=&PL_sv_undef)	1912	aio_busy (double delay, SV *callback = &PL_sv_undef)
1554	PPCODE:	1913	PPCODE:
1555	{	1914	{
1556	dREQ;	1915	dREQ;
1557		1916
1558	req->type = EIO_BUSY;	1917	req->type = EIO_BUSY;
…		…
1560		1919
1561	REQ_SEND;	1920	REQ_SEND;
1562	}	1921	}
1563		1922
1564	void	1923	void
1565	aio_group (SV *callback=&PL_sv_undef)	1924	aio_group (SV *callback = &PL_sv_undef)
1566	PPCODE:	1925	PPCODE:
1567	{	1926	{
1568	dREQ;	1927	dREQ;
1569		1928
1570	req->type = EIO_GROUP;	1929	req->type = EIO_GROUP;
1571		1930
		1931	PUTBACK;
1572	req_submit (req);	1932	req_submit (req);
		1933	SPAGAIN;
		1934
1573	XPUSHs (req_sv (req, aio_grp_stash));	1935	XPUSHs (req_sv (req, aio_grp_stash));
1574	}	1936	}
1575		1937
1576	void	1938	void
1577	aio_nop (SV *callback=&PL_sv_undef)	1939	aio_nop (SV *callback = &PL_sv_undef)
1578	ALIAS:	1940	ALIAS:
1579	aio_nop = EIO_NOP	1941	aio_nop = EIO_NOP
1580	aio_sync = EIO_SYNC	1942	aio_sync = EIO_SYNC
1581	PPCODE:	1943	PPCODE:
1582	{	1944	{
…		…
1586		1948
1587	REQ_SEND;	1949	REQ_SEND;
1588	}	1950	}
1589		1951
1590	int	1952	int
1591	aioreq_pri (int pri = 0)	1953	aioreq_pri (int pri = NO_INIT)
1592	CODE:	1954	CODE:
1593	RETVAL = next_pri;	1955	RETVAL = next_pri;
1594	if (items > 0)	1956	if (items > 0)
1595	{	1957	{
1596	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1958	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1686	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2048	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1687	OUTPUT:	2049	OUTPUT:
1688	RETVAL	2050	RETVAL
1689		2051
1690	void	2052	void
1691	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2053	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1692	PPCODE:	2054	PPCODE:
1693	sv_unmagic (scalar, MMAP_MAGIC);	2055	sv_clear_foreign (scalar);
1694	{	2056	{
1695	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2057	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1696	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2058	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1697	if (addr == (void *)-1)	2059	if (addr == (void *)-1)
1698	XSRETURN_NO;	2060	XSRETURN_NO;
1699		2061
1700	sv_force_normal (scalar);	2062	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1701
1702	/* we store the length in mg_obj, as namlen is I32 :/ */
1703	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1704	->mg_obj = (SV *)length;
1705
1706	SvUPGRADE (scalar, SVt_PV); /* nop... */
1707		2063
1708	if (!(prot & PROT_WRITE))	2064	if (!(prot & PROT_WRITE))
1709	SvREADONLY_on (scalar);	2065	SvREADONLY_on (scalar);
1710		2066
1711	if (SvLEN (scalar))
1712	Safefree (SvPVX (scalar));
1713
1714	SvPVX (scalar) = (char *)addr;
1715	SvCUR_set (scalar, length);
1716	SvLEN_set (scalar, 0);
1717	SvPOK_only (scalar);
1718
1719	XSRETURN_YES;	2067	XSRETURN_YES;
1720	}	2068	}
1721		2069
1722	void	2070	void
1723	munmap (SV *scalar)	2071	munmap (SV *scalar)
1724	CODE:	2072	CODE:
1725	sv_unmagic (scalar, MMAP_MAGIC);	2073	sv_clear_foreign (scalar);
		2074
		2075	SV *
		2076	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2077	CODE:
		2078	{
		2079	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2080	void *new;
		2081
		2082	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2083	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2084
		2085	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2086
		2087	RETVAL = &PL_sv_no;
		2088
		2089	if (new != (void *)-1)
		2090	{
		2091	RETVAL = new == (void *)mg->mg_ptr
		2092	? newSVpvn ("0 but true", 10)
		2093	: &PL_sv_yes;
		2094
		2095	mg->mg_ptr = (char *)new;
		2096	mg->mg_obj = (SV *)new_length;
		2097
		2098	SvPVX (scalar) = mg->mg_ptr;
		2099	SvCUR_set (scalar, new_length);
		2100	}
		2101	}
		2102	OUTPUT:
		2103	RETVAL
1726		2104
1727	int	2105	int
1728	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2106	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1729	ALIAS:	2107	ALIAS:
1730	mprotect = 1	2108	mprotect = 1
1731	CODE:	2109	CODE:
1732	{	2110	{
1733	STRLEN svlen;	2111	STRLEN svlen;
1734	void *addr = SvPVbyte (scalar, svlen);	2112	void *addr = SvPVbyte (scalar, svlen);
1735	size_t len = SvUV (length);	2113	STRLEN len = SvUV (length);
1736		2114
1737	if (offset < 0)	2115	if (offset < 0)
1738	offset += svlen;	2116	offset += svlen;
1739		2117
1740	if (offset < 0 || offset > svlen)	2118	if (offset < 0 || offset > svlen)
…		…
1754	}	2132	}
1755	OUTPUT:	2133	OUTPUT:
1756	RETVAL	2134	RETVAL
1757		2135
1758	int	2136	int
1759	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2137	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1760	CODE:	2138	CODE:
1761	{	2139	{
1762	STRLEN svlen;	2140	STRLEN svlen;
1763	void *addr = SvPVbyte (scalar, svlen);	2141	void *addr = SvPVbyte (scalar, svlen);
1764	size_t len = SvUV (length);	2142	size_t len = SvUV (length);
1765		2143
1766	if (offset < 0)	2144	if (offset < 0)
1767	offset += svlen;	2145	offset += svlen;
1768		2146
…		…
1820	#else	2198	#else
1821	RETVAL = EIO_ENOSYS ();	2199	RETVAL = EIO_ENOSYS ();
1822	#endif	2200	#endif
1823	OUTPUT:	2201	OUTPUT:
1824	RETVAL	2202	RETVAL
		2203
		2204	int
		2205	pipesize (aio_rfd rfh, int new_size = -1)
		2206	PROTOTYPE: $;$
		2207	CODE:
		2208	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2209	if (new_size >= 0)
		2210	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2211	else
		2212	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2213	#else
		2214	errno = ENOSYS;
		2215	RETVAL = -1;
		2216	#endif
		2217	OUTPUT:
		2218	RETVAL
		2219
		2220	void
		2221	pipe2 (int flags = 0)
		2222	PROTOTYPE: ;$
		2223	PPCODE:
		2224	{
		2225	int fd[2];
		2226	int res;
		2227
		2228	if (flags)
		2229	#if HAVE_PIPE2
		2230	res = pipe2 (fd, flags);
		2231	#else
		2232	res = (errno = ENOSYS, -1);
		2233	#endif
		2234	else
		2235	res = pipe (fd);
		2236
		2237	if (!res)
		2238	{
		2239	EXTEND (SP, 2);
		2240	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2241	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2242	}
		2243	}
		2244
		2245	void
		2246	eventfd (unsigned int initval = 0, int flags = 0)
		2247	PPCODE:
		2248	{
		2249	int fd;
		2250	#if HAVE_EVENTFD
		2251	fd = eventfd (initval, flags);
		2252	#else
		2253	fd = (errno = ENOSYS, -1);
		2254	#endif
		2255
		2256	XPUSHs (newmortalFH (fd, O_RDWR));
		2257	}
		2258
		2259	void
		2260	timerfd_create (int clockid, int flags = 0)
		2261	PPCODE:
		2262	{
		2263	int fd;
		2264	#if HAVE_TIMERFD
		2265	fd = timerfd_create (clockid, flags);
		2266	#else
		2267	fd = (errno = ENOSYS, -1);
		2268	#endif
		2269
		2270	XPUSHs (newmortalFH (fd, O_RDWR));
		2271	}
		2272
		2273	void
		2274	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2275	PPCODE:
		2276	{
		2277	int fd = s_fileno_croak (fh, 0);
		2278	#if HAVE_TIMERFD
		2279	int res;
		2280	struct itimerspec its, ots;
		2281
		2282	ts_set (&its.it_interval, interval);
		2283	ts_set (&its.it_value , value);
		2284	res = timerfd_settime (fd, flags, &its, &ots);
		2285
		2286	if (!res)
		2287	{
		2288	EXTEND (SP, 2);
		2289	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2290	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2291	}
		2292	#else
		2293	errno = ENOSYS;
		2294	#endif
		2295	}
		2296
		2297	void
		2298	timerfd_gettime (SV *fh)
		2299	PPCODE:
		2300	{
		2301	int fd = s_fileno_croak (fh, 0);
		2302	#if HAVE_TIMERFD
		2303	int res;
		2304	struct itimerspec ots;
		2305	res = timerfd_gettime (fd, &ots);
		2306
		2307	if (!res)
		2308	{
		2309	EXTEND (SP, 2);
		2310	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2311	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2312	}
		2313	#else
		2314	errno = ENOSYS;
		2315	#endif
		2316	}
		2317
		2318	UV
		2319	get_fdlimit ()
		2320	CODE:
		2321	#if HAVE_RLIMITS
		2322	struct rlimit rl;
		2323	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2324	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2325	#endif
		2326	XSRETURN_UNDEF;
		2327	OUTPUT:
		2328	RETVAL
		2329
		2330	void
		2331	min_fdlimit (UV limit = 0x7fffffffU)
		2332	CODE:
		2333	{
		2334	#if HAVE_RLIMITS
		2335	struct rlimit rl;
		2336	rlim_t orig_rlim_max;
		2337	UV bit;
		2338
		2339	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2340	goto fail;
		2341
		2342	if (rl.rlim_cur == RLIM_INFINITY)
		2343	XSRETURN_YES;
		2344
		2345	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2346
		2347	if (rl.rlim_cur < limit)
		2348	{
		2349	rl.rlim_cur = limit;
		2350
		2351	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2352	rl.rlim_max = rl.rlim_cur;
		2353	}
		2354
		2355	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2356	XSRETURN_YES;
		2357
		2358	if (errno == EPERM)
		2359	{
		2360	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2361	/* our limit overflows a system-wide limit */
		2362	/* try an adaptive algorithm, but do not lower the hardlimit */
		2363	rl.rlim_max = 0;
		2364	for (bit = 0x40000000U; bit; bit >>= 1)
		2365	{
		2366	rl.rlim_max |= bit;
		2367	rl.rlim_cur = rl.rlim_max;
		2368
		2369	/* nevr decrease the hard limit */
		2370	if (rl.rlim_max < orig_rlim_max)
		2371	break;
		2372
		2373	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2374	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2375	}
		2376
		2377	/* now, raise the soft limit to the max permitted */
		2378	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2379	{
		2380	rl.rlim_cur = rl.rlim_max;
		2381	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2382	errno = EPERM;
		2383	}
		2384	}
		2385	#endif
		2386	fail:
		2387	XSRETURN_UNDEF;
		2388	}
1825		2389
1826	void _on_next_submit (SV *cb)	2390	void _on_next_submit (SV *cb)
1827	CODE:	2391	CODE:
1828	SvREFCNT_dec (on_next_submit);	2392	SvREFCNT_dec (on_next_submit);
1829	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2393	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1864	cancel (aio_req_ornot req)	2428	cancel (aio_req_ornot req)
1865	CODE:	2429	CODE:
1866	eio_cancel (req);	2430	eio_cancel (req);
1867		2431
1868	void	2432	void
1869	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2433	cb (aio_req_ornot req, SV *callback = NO_INIT)
1870	PPCODE:	2434	PPCODE:
1871	{	2435	{
1872	if (GIMME_V != G_VOID)	2436	if (GIMME_V != G_VOID)
1873	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2437	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1874		2438
1875	if (items > 1)	2439	if (items > 1)
1876	{	2440	{
1877	SV *cb_cv =get_cb (callback);	2441	SV *cb_cv = get_cb (callback);
1878		2442
1879	SvREFCNT_dec (req->callback);	2443	SvREFCNT_dec (req->callback);
1880	req->callback = SvREFCNT_inc (cb_cv);	2444	req->callback = SvREFCNT_inc (cb_cv);
1881	}	2445	}
1882	}	2446	}
…		…
1939	limit (aio_req grp, int limit)	2503	limit (aio_req grp, int limit)
1940	CODE:	2504	CODE:
1941	eio_grp_limit (grp, limit);	2505	eio_grp_limit (grp, limit);
1942		2506
1943	void	2507	void
1944	feed (aio_req grp, SV *callback=&PL_sv_undef)	2508	feed (aio_req grp, SV *callback = &PL_sv_undef)
1945	CODE:	2509	CODE:
1946	{	2510	{
1947	SvREFCNT_dec (grp->sv2);	2511	SvREFCNT_dec (grp->sv2);
1948	grp->sv2 = newSVsv (callback);	2512	grp->sv2 = newSVsv (callback);
1949	grp->feed = aio_grp_feed;	2513	grp->feed = aio_grp_feed;

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