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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.210 by root, Fri Apr 6 11:39:25 2012 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 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
		34	# include <linux/types.h>
27	# include <linux/fiemap.h>	35	# include <linux/fiemap.h>
28	# define HAVE_FIEMAP 1	36	# define HAVE_FIEMAP 1
29	# endif	37	# endif
30	#endif	38	#endif
31		39
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
100		108
101	/*****************************************************************************/	109	/*****************************************************************************/
102		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
103	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
106		131
107	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;
…		…
113	STRLEN stroffset; \	138	STRLEN stroffset; \
114	SV *self;	139	SV *self;
115		140
116	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
117		142
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	143	#include "libeio/eio.h"
120		144
121	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
…		…
140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141	# endif	165	# endif
142	#endif	166	#endif
143		167
144	/* 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 */
145	#include "def0.h"	170	#include "def0.h"
146		171
147	#ifndef makedev	172	#ifndef makedev
148	# define makedev(maj,min) (((maj) << 8) | (min))	173	# define makedev(maj,min) (((maj) << 8) | (min))
149	#endif	174	#endif
…		…
152	#endif	177	#endif
153	#ifndef minor	178	#ifndef minor
154	# define minor(dev) ((dev) & 0xff)	179	# define minor(dev) ((dev) & 0xff)
155	#endif	180	#endif
156		181
157	#ifndef PAGESIZE	182	#if PAGESIZE <= 0
158	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
159	#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	}
160		280
161	/*****************************************************************************/	281	/*****************************************************************************/
162		282
163	static void	283	static void
164	fiemap (eio_req *req)	284	fiemap (eio_req *req)
165	{	285	{
166	req->result = -1;	286	req->result = -1;
167		287
168	#if HAVE_FIEMAP	288	#if HAVE_FIEMAP
		289	/* assume some c99 */
		290	struct fiemap *fiemap = 0;
		291	size_t end_offset;
		292	int count = req->int3;
		293
		294	req->flags |= EIO_FLAG_PTR1_FREE;
		295
		296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
		298	if (count < 0)
		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);
		329
169	for (;;)	330	for (;;)
170	{	331	{
171	int count = req->int3;	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;
172		335
173	if (count < 0)	336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
174	{	337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
175	struct fiemap fiemap;	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);
176		341
177	fiemap.fm_start = req->offs;
178	fiemap.fm_length = req->size;
179	fiemap.fm_flags = req->int2;
180	fiemap.fm_extent_count = 0;
181
182	if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))	342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183	return;	343	return;
184		344
185	count = fiemap.fm_mapped_extents;	345	if (!incmap->fm_mapped_extents)
186	}	346	goto done;
187		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189	errno = ENOMEM;	350	errno = ENOMEM;
190	if (!fiemap)	351	if (!fiemap)
191	return;	352	return;
192		353
193	req->ptr1 = fiemap;	354	req->ptr1 = fiemap;
194	req->flags |= EIO_FLAG_PTR1_FREE;
195		355
196	fiemap->fm_start = req->offs;	356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
197	fiemap->fm_length = req->size;	357	{
198	fiemap->fm_flags = req->int2;	358	struct fiemap_extent *e = incmap->fm_extents + count;
199	fiemap->fm_extent_count = count;
200		359
201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	360	if (e->fe_logical + e->fe_length >= end_offset)
202	return;	361	goto done;
203		362
204	if (req->int3 >= 0)	363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
205	break; /* when not autosizing we are done */
206		364
207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
208	break; /* autosizing successful, we are done */	366	goto done;
209		367
210	free (fiemap);	368	}
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	{
		736	#if HAVE_FIEMAP
550	if (!req->result)	737	if (!req->result)
551	{	738	{
552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;	739	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
553		740
554	if (fiemap->fm_extent_count)	741	if (fiemap->fm_extent_count)
…		…
575	{	762	{
576	SvIV_set (sv_result, fiemap->fm_mapped_extents);	763	SvIV_set (sv_result, fiemap->fm_mapped_extents);
577	PUSHs (sv_result);	764	PUSHs (sv_result);
578	}	765	}
579	}	766	}
		767	#endif
580	}	768	}
581	else	769	else
582	PUSHs (sv_result);	770	PUSHs (sv_result);
583	break;	771	break;
584		772
…		…
654	{	842	{
655	while (eio_nreqs ())	843	while (eio_nreqs ())
656	{	844	{
657	int size;	845	int size;
658		846
659	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
660	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
661	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
662		850
663	if (size)	851	if (size)
664	return;	852	return;
665		853
666	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
667		855
668	s_epipe_wait (&respipe);	856	s_epipe_wait (&respipe);
669	}	857	}
670	}	858	}
671		859
…		…
692	create_respipe ();	880	create_respipe ();
693		881
694	if (eio_init (want_poll, done_poll) < 0)	882	if (eio_init (want_poll, done_poll) < 0)
695	croak ("IO::AIO: unable to initialise eio library");	883	croak ("IO::AIO: unable to initialise eio library");
696	}	884	}
697
698	/*****************************************************************************/
699
700	#if !_POSIX_MAPPED_FILES
701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
702	# define munmap(addr,length) (errno = ENOSYS, -1)
703	#endif
704
705	#if !_POSIX_MEMORY_PROTECTION
706	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
707	# define PROT_NONE 0
708	# define PROT_WRITE 0
709	# define MAP_PRIVATE 0
710	# define MAP_SHARED 0
711	# define MAP_FIXED 0
712	#endif
713
714	#define MMAP_MAGIC PERL_MAGIC_ext
715
716	static int ecb_cold
717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
718	{
719	int old_errno = errno;
720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
721	errno = old_errno;
722
723	mg->mg_obj = 0; /* just in case */
724
725	SvREADONLY_off (sv);
726
727	if (SvPVX (sv) != mg->mg_ptr)
728	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
729
730	SvCUR_set (sv, 0);
731	SvPVX (sv) = 0;
732	SvOK_off (sv);
733
734	return 0;
735	}
736
737	static MGVTBL mmap_vtbl = {
738	0, 0, 0, 0, mmap_free
739	};
740		885
741	/*****************************************************************************/	886	/*****************************************************************************/
742		887
743	static SV *	888	static SV *
744	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
…		…
840	req_set_path1 (req, fh_or_path);	985	req_set_path1 (req, fh_or_path);
841	break;	986	break;
842	}	987	}
843	}	988	}
844		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
845	XS(boot_IO__AIO) ecb_cold;	1007	XS(boot_IO__AIO) ecb_cold;
846		1008
847	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
848		1010
849	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
…		…
856	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
857	# define const_niv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
858	# define const_iv(name) { # name, (IV) name },	1020	# define const_iv(name) { # name, (IV) name },
859	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
860		1022
861	/* 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 */
862		1024	/* the first block can be undef if missing */
863	const_iv (ENOSYS)	1025	const_iv (ENOSYS)
864	const_iv (EXDEV)	1026	const_iv (EXDEV)
865	const_iv (EBADR)	1027	const_iv (EBADR)
866		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 */
867	const_iv (O_RDONLY)	1047	const_iv (O_RDONLY)
868	const_iv (O_WRONLY)	1048	const_iv (O_WRONLY)
869	const_iv (O_RDWR)	1049	const_iv (O_RDWR)
870	const_iv (O_CREAT)	1050	const_iv (O_CREAT)
871	const_iv (O_TRUNC)	1051	const_iv (O_TRUNC)
…		…
884	const_iv (O_SEARCH)	1064	const_iv (O_SEARCH)
885	const_iv (O_DIRECTORY)	1065	const_iv (O_DIRECTORY)
886	const_iv (O_DSYNC)	1066	const_iv (O_DSYNC)
887	const_iv (O_RSYNC)	1067	const_iv (O_RSYNC)
888	const_iv (O_SYNC)	1068	const_iv (O_SYNC)
		1069	const_iv (O_PATH)
		1070	const_iv (O_TMPFILE)
889	const_iv (O_TTY_INIT)	1071	const_iv (O_TTY_INIT)
890		1072
891	const_iv (S_IFIFO)	1073	const_iv (S_IFIFO)
892	const_iv (S_IFCHR)	1074	const_iv (S_IFCHR)
893	const_iv (S_IFBLK)	1075	const_iv (S_IFBLK)
…		…
895	const_iv (S_IFREG)	1077	const_iv (S_IFREG)
896	const_iv (S_IFDIR)	1078	const_iv (S_IFDIR)
897	const_iv (S_IFWHT)	1079	const_iv (S_IFWHT)
898	const_iv (S_IFSOCK)	1080	const_iv (S_IFSOCK)
899	const_iv (S_IFMT)	1081	const_iv (S_IFMT)
900
901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
906	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
907
908	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
909	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
910	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
911	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
912	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
913		1082
914	const_iv (ST_RDONLY)	1083	const_iv (ST_RDONLY)
915	const_iv (ST_NOSUID)	1084	const_iv (ST_NOSUID)
916	const_iv (ST_NODEV)	1085	const_iv (ST_NODEV)
917	const_iv (ST_NOEXEC)	1086	const_iv (ST_NOEXEC)
…		…
927	const_iv (PROT_NONE)	1096	const_iv (PROT_NONE)
928	const_iv (PROT_EXEC)	1097	const_iv (PROT_EXEC)
929	const_iv (PROT_READ)	1098	const_iv (PROT_READ)
930	const_iv (PROT_WRITE)	1099	const_iv (PROT_WRITE)
931		1100
932	/*const_iv (MAP_FIXED)*/
933	const_iv (MAP_PRIVATE)	1101	const_iv (MAP_PRIVATE)
934	const_iv (MAP_SHARED)	1102	const_iv (MAP_SHARED)
		1103	const_iv (MAP_FIXED)
935	const_iv (MAP_ANONYMOUS)	1104	const_iv (MAP_ANONYMOUS)
936		1105
937	/* linuxish */	1106	/* linuxish */
938	const_iv (MAP_HUGETLB)
939	const_iv (MAP_LOCKED)	1107	const_iv (MAP_LOCKED)
940	const_iv (MAP_NORESERVE)	1108	const_iv (MAP_NORESERVE)
941	const_iv (MAP_POPULATE)	1109	const_iv (MAP_POPULATE)
942	const_iv (MAP_NONBLOCK)	1110	const_iv (MAP_NONBLOCK)
		1111	const_iv (MAP_GROWSDOWN)
		1112	const_iv (MAP_32BIT)
		1113	const_iv (MAP_HUGETLB)
		1114	const_iv (MAP_STACK)
		1115
		1116	const_iv (MREMAP_MAYMOVE)
		1117	const_iv (MREMAP_FIXED)
		1118
		1119	const_iv (F_DUPFD_CLOEXEC)
		1120
		1121	const_iv (F_OFD_GETLK)
		1122	const_iv (F_OFD_SETLK)
		1123	const_iv (F_OFD_GETLKW)
		1124
		1125	const_iv (FIFREEZE)
		1126	const_iv (FITHAW)
		1127	const_iv (FITRIM)
		1128	const_iv (FICLONE)
		1129	const_iv (FICLONERANGE)
		1130	const_iv (FIDEDUPERANGE)
		1131
		1132	const_iv (FS_IOC_GETFLAGS)
		1133	const_iv (FS_IOC_SETFLAGS)
		1134	const_iv (FS_IOC_GETVERSION)
		1135	const_iv (FS_IOC_SETVERSION)
		1136	const_iv (FS_IOC_FIEMAP)
		1137	const_iv (FS_IOC_FSGETXATTR)
		1138	const_iv (FS_IOC_FSSETXATTR)
		1139	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1140	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1141	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1142
		1143	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1144
		1145	const_iv (FS_SECRM_FL)
		1146	const_iv (FS_UNRM_FL)
		1147	const_iv (FS_COMPR_FL)
		1148	const_iv (FS_SYNC_FL)
		1149	const_iv (FS_IMMUTABLE_FL)
		1150	const_iv (FS_APPEND_FL)
		1151	const_iv (FS_NODUMP_FL)
		1152	const_iv (FS_NOATIME_FL)
		1153	const_iv (FS_DIRTY_FL)
		1154	const_iv (FS_COMPRBLK_FL)
		1155	const_iv (FS_NOCOMP_FL)
		1156	const_iv (FS_ENCRYPT_FL)
		1157	const_iv (FS_BTREE_FL)
		1158	const_iv (FS_INDEX_FL)
		1159	const_iv (FS_JOURNAL_DATA_FL)
		1160	const_iv (FS_NOTAIL_FL)
		1161	const_iv (FS_DIRSYNC_FL)
		1162	const_iv (FS_TOPDIR_FL)
		1163	const_iv (FS_FL_USER_MODIFIABLE)
		1164
		1165	const_iv (FS_XFLAG_REALTIME)
		1166	const_iv (FS_XFLAG_PREALLOC)
		1167	const_iv (FS_XFLAG_IMMUTABLE)
		1168	const_iv (FS_XFLAG_APPEND)
		1169	const_iv (FS_XFLAG_SYNC)
		1170	const_iv (FS_XFLAG_NOATIME)
		1171	const_iv (FS_XFLAG_NODUMP)
		1172	const_iv (FS_XFLAG_RTINHERIT)
		1173	const_iv (FS_XFLAG_PROJINHERIT)
		1174	const_iv (FS_XFLAG_NOSYMLINKS)
		1175	const_iv (FS_XFLAG_EXTSIZE)
		1176	const_iv (FS_XFLAG_EXTSZINHERIT)
		1177	const_iv (FS_XFLAG_NODEFRAG)
		1178	const_iv (FS_XFLAG_FILESTREAM)
		1179	const_iv (FS_XFLAG_DAX)
		1180	const_iv (FS_XFLAG_HASATTR)
943		1181
944	const_iv (FIEMAP_FLAG_SYNC)	1182	const_iv (FIEMAP_FLAG_SYNC)
945	const_iv (FIEMAP_FLAG_XATTR)	1183	const_iv (FIEMAP_FLAG_XATTR)
946	const_iv (FIEMAP_FLAGS_COMPAT)	1184	const_iv (FIEMAP_FLAGS_COMPAT)
947	const_iv (FIEMAP_EXTENT_LAST)	1185	const_iv (FIEMAP_EXTENT_LAST)
…		…
954	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1192	const_iv (FIEMAP_EXTENT_DATA_TAIL)
955	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1193	const_iv (FIEMAP_EXTENT_UNWRITTEN)
956	const_iv (FIEMAP_EXTENT_MERGED)	1194	const_iv (FIEMAP_EXTENT_MERGED)
957	const_iv (FIEMAP_EXTENT_SHARED)	1195	const_iv (FIEMAP_EXTENT_SHARED)
958		1196
		1197	const_iv (SPLICE_F_MOVE)
		1198	const_iv (SPLICE_F_NONBLOCK)
		1199	const_iv (SPLICE_F_MORE)
		1200	const_iv (SPLICE_F_GIFT)
		1201
		1202	const_iv (EFD_CLOEXEC)
		1203	const_iv (EFD_NONBLOCK)
		1204	const_iv (EFD_SEMAPHORE)
		1205
		1206	const_iv (CLOCK_REALTIME)
		1207	const_iv (CLOCK_MONOTONIC)
		1208	const_iv (CLOCK_BOOTTIME)
		1209	const_iv (CLOCK_REALTIME_ALARM)
		1210	const_iv (CLOCK_BOOTTIME_ALARM)
		1211
		1212	const_iv (TFD_NONBLOCK)
		1213	const_iv (TFD_CLOEXEC)
		1214
		1215	const_iv (TFD_TIMER_ABSTIME)
		1216	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1217
		1218	/* these are libeio constants, and are independent of gendef0 */
959	const_eio (SEEK_SET)	1219	const_eio (SEEK_SET)
960	const_eio (SEEK_CUR)	1220	const_eio (SEEK_CUR)
961	const_eio (SEEK_END)	1221	const_eio (SEEK_END)
962		1222
963	const_eio (MCL_FUTURE)	1223	const_eio (MCL_FUTURE)
…		…
972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1232	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
973	const_eio (SYNC_FILE_RANGE_WRITE)	1233	const_eio (SYNC_FILE_RANGE_WRITE)
974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1234	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
975		1235
976	const_eio (FALLOC_FL_KEEP_SIZE)	1236	const_eio (FALLOC_FL_KEEP_SIZE)
		1237	const_eio (FALLOC_FL_PUNCH_HOLE)
		1238	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1239	const_eio (FALLOC_FL_ZERO_RANGE)
		1240	const_eio (FALLOC_FL_INSERT_RANGE)
		1241	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1242
		1243	const_eio (RENAME_NOREPLACE)
		1244	const_eio (RENAME_EXCHANGE)
		1245	const_eio (RENAME_WHITEOUT)
977		1246
978	const_eio (READDIR_DENTS)	1247	const_eio (READDIR_DENTS)
979	const_eio (READDIR_DIRS_FIRST)	1248	const_eio (READDIR_DIRS_FIRST)
980	const_eio (READDIR_STAT_ORDER)	1249	const_eio (READDIR_STAT_ORDER)
981	const_eio (READDIR_FOUND_UNKNOWN)	1250	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1049	PROTOTYPE: $	1318	PROTOTYPE: $
1050	CODE:	1319	CODE:
1051	max_outstanding = maxreqs;	1320	max_outstanding = maxreqs;
1052		1321
1053	void	1322	void
1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1323	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1055	PPCODE:	1324	PPCODE:
1056	{	1325	{
1057	dREQ;	1326	dREQ;
1058		1327
1059	req->type = EIO_WD_OPEN;	1328	req->type = EIO_WD_OPEN;
…		…
1061		1330
1062	REQ_SEND;	1331	REQ_SEND;
1063	}	1332	}
1064		1333
1065	void	1334	void
1066	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1335	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1067	PPCODE:	1336	PPCODE:
1068	{	1337	{
1069	dREQ;	1338	dREQ;
1070		1339
1071	req->type = EIO_OPEN;	1340	req->type = EIO_OPEN;
…		…
1075		1344
1076	REQ_SEND;	1345	REQ_SEND;
1077	}	1346	}
1078		1347
1079	void	1348	void
1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1349	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1081	ALIAS:	1350	ALIAS:
1082	aio_fsync = EIO_FSYNC	1351	aio_fsync = EIO_FSYNC
1083	aio_fdatasync = EIO_FDATASYNC	1352	aio_fdatasync = EIO_FDATASYNC
1084	aio_syncfs = EIO_SYNCFS	1353	aio_syncfs = EIO_SYNCFS
1085	PPCODE:	1354	PPCODE:
1086	{	1355	{
1087	int fd = s_fileno_croak (fh, 0);	1356	int fd = s_fileno_croak (fh, 0);
1088	dREQ;	1357	dREQ;
1089		1358
1090	req->type = ix;	1359	req->type = ix;
1091	req->sv1 = newSVsv (fh);	1360	req->sv1 = newSVsv (fh);
1092	req->int1 = fd;	1361	req->int1 = fd;
1093		1362
1094	REQ_SEND;	1363	REQ_SEND;
1095	}	1364	}
1096		1365
1097	void	1366	void
1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1367	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1099	PPCODE:	1368	PPCODE:
1100	{	1369	{
1101	int fd = s_fileno_croak (fh, 0);	1370	int fd = s_fileno_croak (fh, 0);
1102	dREQ;	1371	dREQ;
1103		1372
1104	req->type = EIO_SYNC_FILE_RANGE;	1373	req->type = EIO_SYNC_FILE_RANGE;
1105	req->sv1 = newSVsv (fh);	1374	req->sv1 = newSVsv (fh);
1106	req->int1 = fd;	1375	req->int1 = fd;
…		…
1110		1379
1111	REQ_SEND;	1380	REQ_SEND;
1112	}	1381	}
1113		1382
1114	void	1383	void
1115	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1384	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1116	PPCODE:	1385	PPCODE:
1117	{	1386	{
1118	int fd = s_fileno_croak (fh, 0);	1387	int fd = s_fileno_croak (fh, 0);
1119	dREQ;	1388	dREQ;
1120		1389
1121	req->type = EIO_FALLOCATE;	1390	req->type = EIO_FALLOCATE;
1122	req->sv1 = newSVsv (fh);	1391	req->sv1 = newSVsv (fh);
1123	req->int1 = fd;	1392	req->int1 = fd;
…		…
1127		1396
1128	REQ_SEND;	1397	REQ_SEND;
1129	}	1398	}
1130		1399
1131	void	1400	void
1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1401	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1133	PPCODE:	1402	PPCODE:
1134	{	1403	{
1135	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1404	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1136	int fd = s_fileno_croak (fh, 0);	1405	int fd = s_fileno_croak (fh, 0);
1137	dREQ;	1406	dREQ;
1138		1407
1139	if (expect_false (close_fd < 0))	1408	if (expect_false (close_fd < 0))
1140	{	1409	{
1141	int pipefd [2];	1410	int pipefd [2];
…		…
1161		1430
1162	REQ_SEND;	1431	REQ_SEND;
1163	}	1432	}
1164		1433
1165	void	1434	void
1166	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1435	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1167	PPCODE:	1436	PPCODE:
1168	{	1437	{
1169	STRLEN svlen;
1170	int fd = s_fileno_croak (fh, 0);	1438	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1439	dREQ;
1172		1440
1173	req->type = EIO_SEEK;	1441	req->type = EIO_SEEK;
1174	req->sv1 = newSVsv (fh);	1442	req->sv1 = newSVsv (fh);
…		…
1178		1446
1179	REQ_SEND;	1447	REQ_SEND;
1180	}	1448	}
1181		1449
1182	void	1450	void
1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1451	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1184	ALIAS:	1452	ALIAS:
1185	aio_read = EIO_READ	1453	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1454	aio_write = EIO_WRITE
1187	PPCODE:	1455	PPCODE:
1188	{	1456	{
…		…
1204	len = svlen - dataoffset;	1472	len = svlen - dataoffset;
1205	}	1473	}
1206	else	1474	else
1207	{	1475	{
1208	/* read: check type and grow scalar as necessary */	1476	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1477	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1478	svptr = sv_grow (data, len + dataoffset + 1);
		1479	else if (SvCUR (data) < len + dataoffset)
		1480	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1481	}
1212		1482
1213	{	1483	{
1214	dREQ;	1484	dREQ;
1215		1485
…		…
1231	REQ_SEND;	1501	REQ_SEND;
1232	}	1502	}
1233	}	1503	}
1234		1504
1235	void	1505	void
		1506	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1507	ALIAS:
		1508	aio_ioctl = EIO_IOCTL
		1509	aio_fcntl = EIO_FCNTL
		1510	PPCODE:
		1511	{
		1512	int fd = s_fileno_croak (fh, 0);
		1513	char *svptr;
		1514
		1515	if (SvPOK (arg) || !SvNIOK (arg))
		1516	{
		1517	STRLEN svlen;
		1518	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1519	#ifdef IOCPARM_LEN
		1520	STRLEN need = IOCPARM_LEN (request);
		1521	#else
		1522	STRLEN need = 256;
		1523	#endif
		1524
		1525	if (svlen < need)
		1526	svptr = SvGROW (arg, need);
		1527	}
		1528	else
		1529	svptr = (char *)SvIV (arg);
		1530
		1531	{
		1532	dREQ;
		1533
		1534	req->type = ix;
		1535	req->sv1 = newSVsv (fh);
		1536	req->int1 = fd;
		1537	req->int2 = (long)request;
		1538	req->sv2 = SvREFCNT_inc (arg);
		1539	req->ptr2 = svptr;
		1540
		1541	REQ_SEND;
		1542	}
		1543	}
		1544
		1545	void
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1546	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1547	ALIAS:
1238	aio_readlink = EIO_READLINK	1548	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1549	aio_realpath = EIO_REALPATH
1240	PPCODE:	1550	PPCODE:
1241	{	1551	{
…		…
1246		1556
1247	REQ_SEND;	1557	REQ_SEND;
1248	}	1558	}
1249		1559
1250	void	1560	void
1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1561	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1252	PPCODE:	1562	PPCODE:
1253	{	1563	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1564	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1565	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1566	dREQ;
1257		1567
1258	req->type = EIO_SENDFILE;	1568	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1569	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1570	req->int1 = ofd;
…		…
1265		1575
1266	REQ_SEND;	1576	REQ_SEND;
1267	}	1577	}
1268		1578
1269	void	1579	void
1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1580	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1271	PPCODE:	1581	PPCODE:
1272	{	1582	{
1273	int fd = s_fileno_croak (fh, 0);	1583	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1584	dREQ;
1275		1585
1276	req->type = EIO_READAHEAD;	1586	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1587	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1588	req->int1 = fd;
…		…
1281		1591
1282	REQ_SEND;	1592	REQ_SEND;
1283	}	1593	}
1284		1594
1285	void	1595	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1596	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1597	ALIAS:
1288	aio_stat = EIO_STAT	1598	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1599	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1600	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1601	PPCODE:
…		…
1300	UV	1610	UV
1301	major (UV dev)	1611	major (UV dev)
1302	ALIAS:	1612	ALIAS:
1303	minor = 1	1613	minor = 1
1304	CODE:	1614	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1615	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1616	OUTPUT:
1307	RETVAL	1617	RETVAL
1308		1618
1309	UV	1619	UV
1310	makedev (UV maj, UV min)	1620	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1622	RETVAL = makedev (maj, min);
1313	OUTPUT:	1623	OUTPUT:
1314	RETVAL	1624	RETVAL
1315		1625
1316	void	1626	void
1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1627	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1318	PPCODE:	1628	PPCODE:
1319	{	1629	{
1320	dREQ;	1630	dREQ;
1321		1631
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1632	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1635
1326	REQ_SEND;	1636	REQ_SEND;
1327	}	1637	}
1328		1638
1329	void	1639	void
1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1640	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1331	PPCODE:	1641	PPCODE:
1332	{	1642	{
1333	dREQ;	1643	dREQ;
1334		1644
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1647
1338	REQ_SEND;	1648	REQ_SEND;
1339	}	1649	}
1340		1650
1341	void	1651	void
1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1652	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1343	PPCODE:	1653	PPCODE:
1344	{	1654	{
1345	dREQ;	1655	dREQ;
1346		1656
1347	req->int2 = mode;	1657	req->int2 = mode;
…		…
1349		1659
1350	REQ_SEND;	1660	REQ_SEND;
1351	}	1661	}
1352		1662
1353	void	1663	void
1354	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1664	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1355	PPCODE:	1665	PPCODE:
1356	{	1666	{
1357	dREQ;	1667	dREQ;
1358		1668
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1669	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1672
1363	REQ_SEND;	1673	REQ_SEND;
1364	}	1674	}
1365		1675
1366	void	1676	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1677	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1678	PPCODE:
1369	{	1679	{
1370	dREQ;	1680	dREQ;
1371		1681
1372	req->type = EIO_READDIR;	1682	req->type = EIO_READDIR;
…		…
1379		1689
1380	REQ_SEND;	1690	REQ_SEND;
1381	}	1691	}
1382		1692
1383	void	1693	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1694	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1695	PPCODE:
1386	{	1696	{
1387	dREQ;	1697	dREQ;
1388		1698
1389	req->type = EIO_MKDIR;	1699	req->type = EIO_MKDIR;
…		…
1392		1702
1393	REQ_SEND;	1703	REQ_SEND;
1394	}	1704	}
1395		1705
1396	void	1706	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1707	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1708	ALIAS:
1399	aio_unlink = EIO_UNLINK	1709	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1710	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1711	aio_readdir = EIO_READDIR
1402	PPCODE:	1712	PPCODE:
…		…
1408		1718
1409	REQ_SEND;	1719	REQ_SEND;
1410	}	1720	}
1411		1721
1412	void	1722	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1723	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1724	ALIAS:
1415	aio_link = EIO_LINK	1725	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1726	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1727	aio_rename = EIO_RENAME
1418	PPCODE:	1728	PPCODE:
…		…
1427		1737
1428	REQ_SEND;	1738	REQ_SEND;
1429	}	1739	}
1430		1740
1431	void	1741	void
		1742	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	eio_wd wd2 = 0;
		1746	dREQ;
		1747
		1748	req->type = EIO_RENAME;
		1749	req_set_path1 (req, oldpath);
		1750	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1751	req->int2 = flags;
		1752	req->int3 = (long)wd2;
		1753
		1754	REQ_SEND;
		1755	}
		1756
		1757	void
1432	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1758	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1433	PPCODE:	1759	PPCODE:
1434	{	1760	{
1435	dREQ;	1761	dREQ;
1436		1762
1437	req->type = EIO_MKNOD;	1763	req->type = EIO_MKNOD;
…		…
1441		1767
1442	REQ_SEND;	1768	REQ_SEND;
1443	}	1769	}
1444		1770
1445	void	1771	void
1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1772	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1447	ALIAS:	1773	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1774	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1775	aio_msync = EIO_MSYNC
1450	PPCODE:	1776	PPCODE:
1451	{	1777	{
1452	STRLEN svlen;	1778	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1779	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1780	UV len = SvUV (length);
		1781
		1782	if (flags < 0)
		1783	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1784
1456	if (offset < 0)	1785	if (offset < 0)
1457	offset += svlen;	1786	offset += svlen;
1458		1787
1459	if (offset < 0 || offset > svlen)	1788	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1803	REQ_SEND;
1475	}	1804	}
1476	}	1805	}
1477		1806
1478	void	1807	void
1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1808	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1480	PPCODE:	1809	PPCODE:
1481	{	1810	{
1482	STRLEN svlen;	1811	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1812	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1813	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1832	REQ_SEND;
1504	}	1833	}
1505	}	1834	}
1506		1835
1507	void	1836	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1837	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1838	PPCODE:
1510	{	1839	{
1511	dREQ;	1840	dREQ;
1512		1841
1513	req->type = EIO_MLOCKALL;	1842	req->type = EIO_MLOCKALL;
…		…
1515		1844
1516	REQ_SEND;	1845	REQ_SEND;
1517	}	1846	}
1518		1847
1519	void	1848	void
1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1849	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1521	PPCODE:	1850	PPCODE:
1522	{	1851	{
1523	int fd = s_fileno_croak (fh, 0);	1852	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1853	dREQ;
1525		1854
1526	req->type = EIO_CUSTOM;	1855	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1856	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1857	req->int1 = fd;
1529		1858
1530	req->feed = fiemap;	1859	req->feed = fiemap;
		1860	#if HAVE_FIEMAP
1531	/* keep our fingers crossed that the next two types are 64 bit */	1861	/* keep our fingers crossed that the next two types are 64 bit */
1532	req->offs = start;	1862	req->offs = start;
1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;	1863	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1534	req->int2 = flags;	1864	req->int2 = flags;
1535	req->int3 = SvOK (count) ? SvIV (count) : -1;	1865	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1866	#endif
1536		1867
1537	REQ_SEND;	1868	REQ_SEND;
1538	}	1869	}
1539		1870
1540	void	1871	void
		1872	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1873	PPCODE:
		1874	{
		1875	char *svptr = 0;
		1876
		1877	sv_clear_foreign (data);
		1878
		1879	if (length) /* known length, directly read into scalar */
		1880	{
		1881	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1882	svptr = sv_grow (data, length + 1);
		1883	else if (SvCUR (data) < length)
		1884	croak ("length outside of scalar, and cannot grow");
		1885	else
		1886	svptr = SvPVbyte_nolen (data);
		1887	}
		1888
		1889	{
		1890	dREQ;
		1891
		1892	req->type = EIO_SLURP;
		1893	req_set_path1 (req, pathname);
		1894	req->offs = offset;
		1895	req->size = length;
		1896	req->sv2 = SvREFCNT_inc (data);
		1897	req->ptr2 = svptr;
		1898
		1899	if (!SvREADONLY (data))
		1900	{
		1901	SvREADONLY_on (data);
		1902	req->flags |= FLAG_SV2_RO_OFF;
		1903	}
		1904
		1905	REQ_SEND;
		1906	}
		1907	}
		1908
		1909	void
1541	aio_busy (double delay, SV *callback=&PL_sv_undef)	1910	aio_busy (double delay, SV *callback = &PL_sv_undef)
1542	PPCODE:	1911	PPCODE:
1543	{	1912	{
1544	dREQ;	1913	dREQ;
1545		1914
1546	req->type = EIO_BUSY;	1915	req->type = EIO_BUSY;
…		…
1548		1917
1549	REQ_SEND;	1918	REQ_SEND;
1550	}	1919	}
1551		1920
1552	void	1921	void
1553	aio_group (SV *callback=&PL_sv_undef)	1922	aio_group (SV *callback = &PL_sv_undef)
1554	PPCODE:	1923	PPCODE:
1555	{	1924	{
1556	dREQ;	1925	dREQ;
1557		1926
1558	req->type = EIO_GROUP;	1927	req->type = EIO_GROUP;
1559		1928
		1929	PUTBACK;
1560	req_submit (req);	1930	req_submit (req);
		1931	SPAGAIN;
		1932
1561	XPUSHs (req_sv (req, aio_grp_stash));	1933	XPUSHs (req_sv (req, aio_grp_stash));
1562	}	1934	}
1563		1935
1564	void	1936	void
1565	aio_nop (SV *callback=&PL_sv_undef)	1937	aio_nop (SV *callback = &PL_sv_undef)
1566	ALIAS:	1938	ALIAS:
1567	aio_nop = EIO_NOP	1939	aio_nop = EIO_NOP
1568	aio_sync = EIO_SYNC	1940	aio_sync = EIO_SYNC
1569	PPCODE:	1941	PPCODE:
1570	{	1942	{
…		…
1574		1946
1575	REQ_SEND;	1947	REQ_SEND;
1576	}	1948	}
1577		1949
1578	int	1950	int
1579	aioreq_pri (int pri = 0)	1951	aioreq_pri (int pri = NO_INIT)
1580	CODE:	1952	CODE:
1581	RETVAL = next_pri;	1953	RETVAL = next_pri;
1582	if (items > 0)	1954	if (items > 0)
1583	{	1955	{
1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1956	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2046	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1675	OUTPUT:	2047	OUTPUT:
1676	RETVAL	2048	RETVAL
1677		2049
1678	void	2050	void
1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2051	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1680	PPCODE:	2052	PPCODE:
1681	sv_unmagic (scalar, MMAP_MAGIC);	2053	sv_clear_foreign (scalar);
1682	{	2054	{
1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2055	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2056	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1685	if (addr == (void *)-1)	2057	if (addr == (void *)-1)
1686	XSRETURN_NO;	2058	XSRETURN_NO;
1687		2059
1688	sv_force_normal (scalar);	2060	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1689
1690	/* we store the length in mg_obj, as namlen is I32 :/ */
1691	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1692	->mg_obj = (SV *)length;
1693
1694	SvUPGRADE (scalar, SVt_PV); /* nop... */
1695		2061
1696	if (!(prot & PROT_WRITE))	2062	if (!(prot & PROT_WRITE))
1697	SvREADONLY_on (scalar);	2063	SvREADONLY_on (scalar);
1698		2064
1699	if (SvLEN (scalar))
1700	Safefree (SvPVX (scalar));
1701
1702	SvPVX (scalar) = (char *)addr;
1703	SvCUR_set (scalar, length);
1704	SvLEN_set (scalar, 0);
1705	SvPOK_only (scalar);
1706
1707	XSRETURN_YES;	2065	XSRETURN_YES;
1708	}	2066	}
1709		2067
1710	void	2068	void
1711	munmap (SV *scalar)	2069	munmap (SV *scalar)
1712	CODE:	2070	CODE:
1713	sv_unmagic (scalar, MMAP_MAGIC);	2071	sv_clear_foreign (scalar);
		2072
		2073	SV *
		2074	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2075	CODE:
		2076	{
		2077	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2078	void *new;
		2079
		2080	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2081	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2082
		2083	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2084
		2085	RETVAL = &PL_sv_no;
		2086
		2087	if (new != (void *)-1)
		2088	{
		2089	RETVAL = new == (void *)mg->mg_ptr
		2090	? newSVpvn ("0 but true", 10)
		2091	: &PL_sv_yes;
		2092
		2093	mg->mg_ptr = (char *)new;
		2094	mg->mg_obj = (SV *)new_length;
		2095
		2096	SvPVX (scalar) = mg->mg_ptr;
		2097	SvCUR_set (scalar, new_length);
		2098	}
		2099	}
		2100	OUTPUT:
		2101	RETVAL
1714		2102
1715	int	2103	int
1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2104	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1717	ALIAS:	2105	ALIAS:
1718	mprotect = 1	2106	mprotect = 1
1719	CODE:	2107	CODE:
1720	{	2108	{
1721	STRLEN svlen;	2109	STRLEN svlen;
1722	void *addr = SvPVbyte (scalar, svlen);	2110	void *addr = SvPVbyte (scalar, svlen);
1723	size_t len = SvUV (length);	2111	STRLEN len = SvUV (length);
1724		2112
1725	if (offset < 0)	2113	if (offset < 0)
1726	offset += svlen;	2114	offset += svlen;
1727		2115
1728	if (offset < 0 || offset > svlen)	2116	if (offset < 0 || offset > svlen)
…		…
1742	}	2130	}
1743	OUTPUT:	2131	OUTPUT:
1744	RETVAL	2132	RETVAL
1745		2133
1746	int	2134	int
1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2135	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1748	CODE:	2136	CODE:
1749	{	2137	{
1750	STRLEN svlen;	2138	STRLEN svlen;
1751	void *addr = SvPVbyte (scalar, svlen);	2139	void *addr = SvPVbyte (scalar, svlen);
1752	size_t len = SvUV (length);	2140	size_t len = SvUV (length);
1753		2141
1754	if (offset < 0)	2142	if (offset < 0)
1755	offset += svlen;	2143	offset += svlen;
1756		2144
…		…
1763	addr = (void *)(((intptr_t)addr) + offset);	2151	addr = (void *)(((intptr_t)addr) + offset);
1764	eio_page_align (&addr, &len);	2152	eio_page_align (&addr, &len);
1765	#if _POSIX_MEMLOCK_RANGE	2153	#if _POSIX_MEMLOCK_RANGE
1766	RETVAL = munlock (addr, len);	2154	RETVAL = munlock (addr, len);
1767	#else	2155	#else
1768	RETVAL = ((errno = ENOSYS), -1);	2156	RETVAL = EIO_ENOSYS ();
1769	#endif	2157	#endif
1770	}	2158	}
1771	OUTPUT:	2159	OUTPUT:
1772	RETVAL	2160	RETVAL
1773		2161
…		…
1775	munlockall ()	2163	munlockall ()
1776	CODE:	2164	CODE:
1777	#if _POSIX_MEMLOCK	2165	#if _POSIX_MEMLOCK
1778	munlockall ();	2166	munlockall ();
1779	#else	2167	#else
1780	RETVAL = -1;	2168	RETVAL = EIO_ENOSYS ();
1781	errno = ENOSYS;
1782	#endif	2169	#endif
1783	OUTPUT:	2170	OUTPUT:
1784	RETVAL	2171	RETVAL
		2172
		2173	int
		2174	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2175	CODE:
		2176	{
		2177	#if HAVE_LINUX_SPLICE
		2178	loff_t off_in_, off_out_;
		2179	RETVAL = splice (
		2180	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2181	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2182	length, flags
		2183	);
		2184	#else
		2185	RETVAL = EIO_ENOSYS ();
		2186	#endif
		2187	}
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int
		2192	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2193	CODE:
		2194	#if HAVE_LINUX_SPLICE
		2195	RETVAL = tee (rfh, wfh, length, flags);
		2196	#else
		2197	RETVAL = EIO_ENOSYS ();
		2198	#endif
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	int
		2203	pipesize (aio_rfd rfh, int new_size = -1)
		2204	PROTOTYPE: $;$
		2205	CODE:
		2206	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2207	if (new_size >= 0)
		2208	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2209	else
		2210	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2211	#else
		2212	errno = ENOSYS;
		2213	RETVAL = -1;
		2214	#endif
		2215	OUTPUT:
		2216	RETVAL
		2217
		2218	void
		2219	pipe2 (int flags = 0)
		2220	PROTOTYPE: ;$
		2221	PPCODE:
		2222	{
		2223	int fd[2];
		2224	int res;
		2225
		2226	if (flags)
		2227	#if HAVE_PIPE2
		2228	res = pipe2 (fd, flags);
		2229	#else
		2230	res = (errno = ENOSYS, -1);
		2231	#endif
		2232	else
		2233	res = pipe (fd);
		2234
		2235	if (!res)
		2236	{
		2237	EXTEND (SP, 2);
		2238	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2239	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2240	}
		2241	}
		2242
		2243	void
		2244	eventfd (unsigned int initval = 0, int flags = 0)
		2245	PPCODE:
		2246	{
		2247	int fd;
		2248	#if HAVE_EVENTFD
		2249	fd = eventfd (initval, flags);
		2250	#else
		2251	fd = (errno = ENOSYS, -1);
		2252	#endif
		2253
		2254	XPUSHs (newmortalFH (fd, O_RDWR));
		2255	}
		2256
		2257	void
		2258	timerfd_create (int clockid, int flags = 0)
		2259	PPCODE:
		2260	{
		2261	int fd;
		2262	#if HAVE_TIMERFD
		2263	fd = timerfd_create (clockid, flags);
		2264	#else
		2265	fd = (errno = ENOSYS, -1);
		2266	#endif
		2267
		2268	XPUSHs (newmortalFH (fd, O_RDWR));
		2269	}
		2270
		2271	void
		2272	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2273	PPCODE:
		2274	{
		2275	int fd = s_fileno_croak (fh, 0);
		2276	#if HAVE_TIMERFD
		2277	int res;
		2278	struct itimerspec its, ots;
		2279
		2280	ts_set (&its.it_interval, interval);
		2281	ts_set (&its.it_value , value);
		2282	res = timerfd_settime (fd, flags, &its, &ots);
		2283
		2284	if (!res)
		2285	{
		2286	EXTEND (SP, 2);
		2287	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2288	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2289	}
		2290	#else
		2291	errno = ENOSYS;
		2292	#endif
		2293	}
		2294
		2295	void
		2296	timerfd_gettime (SV *fh)
		2297	PPCODE:
		2298	{
		2299	int fd = s_fileno_croak (fh, 0);
		2300	#if HAVE_TIMERFD
		2301	int res;
		2302	struct itimerspec ots;
		2303	res = timerfd_gettime (fd, &ots);
		2304
		2305	if (!res)
		2306	{
		2307	EXTEND (SP, 2);
		2308	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2309	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2310	}
		2311	#else
		2312	errno = ENOSYS;
		2313	#endif
		2314	}
		2315
		2316	UV
		2317	get_fdlimit ()
		2318	CODE:
		2319	#if HAVE_RLIMITS
		2320	struct rlimit rl;
		2321	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2322	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2323	#endif
		2324	XSRETURN_UNDEF;
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	void
		2329	min_fdlimit (UV limit = 0x7fffffffU)
		2330	CODE:
		2331	{
		2332	#if HAVE_RLIMITS
		2333	struct rlimit rl;
		2334	rlim_t orig_rlim_max;
		2335	UV bit;
		2336
		2337	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2338	goto fail;
		2339
		2340	if (rl.rlim_cur == RLIM_INFINITY)
		2341	XSRETURN_YES;
		2342
		2343	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2344
		2345	if (rl.rlim_cur < limit)
		2346	{
		2347	rl.rlim_cur = limit;
		2348
		2349	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2350	rl.rlim_max = rl.rlim_cur;
		2351	}
		2352
		2353	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2354	XSRETURN_YES;
		2355
		2356	if (errno == EPERM)
		2357	{
		2358	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2359	/* our limit overflows a system-wide limit */
		2360	/* try an adaptive algorithm, but do not lower the hardlimit */
		2361	rl.rlim_max = 0;
		2362	for (bit = 0x40000000U; bit; bit >>= 1)
		2363	{
		2364	rl.rlim_max |= bit;
		2365	rl.rlim_cur = rl.rlim_max;
		2366
		2367	/* nevr decrease the hard limit */
		2368	if (rl.rlim_max < orig_rlim_max)
		2369	break;
		2370
		2371	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2372	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2373	}
		2374
		2375	/* now, raise the soft limit to the max permitted */
		2376	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2377	{
		2378	rl.rlim_cur = rl.rlim_max;
		2379	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2380	errno = EPERM;
		2381	}
		2382	}
		2383	#endif
		2384	fail:
		2385	XSRETURN_UNDEF;
		2386	}
1785		2387
1786	void _on_next_submit (SV *cb)	2388	void _on_next_submit (SV *cb)
1787	CODE:	2389	CODE:
1788	SvREFCNT_dec (on_next_submit);	2390	SvREFCNT_dec (on_next_submit);
1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2391	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1824	cancel (aio_req_ornot req)	2426	cancel (aio_req_ornot req)
1825	CODE:	2427	CODE:
1826	eio_cancel (req);	2428	eio_cancel (req);
1827		2429
1828	void	2430	void
1829	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2431	cb (aio_req_ornot req, SV *callback = NO_INIT)
1830	PPCODE:	2432	PPCODE:
1831	{	2433	{
1832	if (GIMME_V != G_VOID)	2434	if (GIMME_V != G_VOID)
1833	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2435	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1834		2436
1835	if (items > 1)	2437	if (items > 1)
1836	{	2438	{
1837	SV *cb_cv =get_cb (callback);	2439	SV *cb_cv = get_cb (callback);
1838		2440
1839	SvREFCNT_dec (req->callback);	2441	SvREFCNT_dec (req->callback);
1840	req->callback = SvREFCNT_inc (cb_cv);	2442	req->callback = SvREFCNT_inc (cb_cv);
1841	}	2443	}
1842	}	2444	}
…		…
1899	limit (aio_req grp, int limit)	2501	limit (aio_req grp, int limit)
1900	CODE:	2502	CODE:
1901	eio_grp_limit (grp, limit);	2503	eio_grp_limit (grp, limit);
1902		2504
1903	void	2505	void
1904	feed (aio_req grp, SV *callback=&PL_sv_undef)	2506	feed (aio_req grp, SV *callback = &PL_sv_undef)
1905	CODE:	2507	CODE:
1906	{	2508	{
1907	SvREFCNT_dec (grp->sv2);	2509	SvREFCNT_dec (grp->sv2);
1908	grp->sv2 = newSVsv (callback);	2510	grp->sv2 = newSVsv (callback);
1909	grp->feed = aio_grp_feed;	2511	grp->feed = aio_grp_feed;

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