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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 1.257 by root, Tue Jul 17 23:20:09 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8
9	#include "schmorp.h"
10		8
11	#include <stddef.h>	9	#include <stddef.h>
12	#include <stdlib.h>	10	#include <stdlib.h>
13	#include <errno.h>	11	#include <errno.h>
14	#include <sys/types.h>	12	#include <sys/types.h>
…		…
19		17
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	18	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	19	# include <sys/mman.h>
22	#endif	20	#endif
23		21
24	#if __linux__	22	/* the incompetent fool that created musl keeps __linux__, refuses
		23	* to implement any linux standard apis, and also has no way to test
		24	* for his broken iplementation. don't complain to me if this fails
		25	* for you.
		26	*/
		27	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	28	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	29	# ifdef FS_IOC_FIEMAP
		30	# include <linux/types.h>
27	# include <linux/fiemap.h>	31	# include <linux/fiemap.h>
28	# define HAVE_FIEMAP 1	32	# define HAVE_FIEMAP 1
29	# endif	33	# endif
30	#endif	34	#endif
31		35
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	102	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	103	#define expect_true(expr) expect ((expr) != 0, 1)
100		104
101	/*****************************************************************************/	105	/*****************************************************************************/
102		106
		107	#include "libeio/config.h"
		108
		109	#include "schmorp.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
103	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
106		127
107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
113	STRLEN stroffset; \	134	STRLEN stroffset; \
114	SV *self;	135	SV *self;
115		136
116	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
117		138
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	139	#include "libeio/eio.h"
120		140
121	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
…		…
140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141	# endif	161	# endif
142	#endif	162	#endif
143		163
144	/* defines all sorts of constants to 0 unless they are already defined */	164	/* defines all sorts of constants to 0 unless they are already defined */
		165	/* also provides const_iv_ and const_niv_ macros for them */
145	#include "def0.h"	166	#include "def0.h"
146		167
147	#ifndef makedev	168	#ifndef makedev
148	# define makedev(maj,min) (((maj) << 8) | (min))	169	# define makedev(maj,min) (((maj) << 8) | (min))
149	#endif	170	#endif
…		…
152	#endif	173	#endif
153	#ifndef minor	174	#ifndef minor
154	# define minor(dev) ((dev) & 0xff)	175	# define minor(dev) ((dev) & 0xff)
155	#endif	176	#endif
156		177
157	#ifndef PAGESIZE	178	#if PAGESIZE <= 0
158	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
159	#endif	180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
160		276
161	/*****************************************************************************/	277	/*****************************************************************************/
162		278
163	static void	279	static void
164	fiemap (eio_req *req)	280	fiemap (eio_req *req)
165	{	281	{
166	req->result = -1;	282	req->result = -1;
167		283
168	#if HAVE_FIEMAP	284	#if HAVE_FIEMAP
		285	/* assume some c99 */
		286	struct fiemap *fiemap = 0;
		287	size_t end_offset;
		288	int count = req->int3;
		289
		290	req->flags |= EIO_FLAG_PTR1_FREE;
		291
		292	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		293	/* increase in 3.5kb steps */
		294	if (count < 0)
		295	count = 8;
		296
		297	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		298	errno = ENOMEM;
		299	if (!fiemap)
		300	return;
		301
		302	req->ptr1 = fiemap;
		303
		304	fiemap->fm_start = req->offs;
		305	fiemap->fm_length = req->size;
		306	fiemap->fm_flags = req->int2;
		307	fiemap->fm_extent_count = count;
		308
		309	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		310	return;
		311
		312	if (req->int3 >= 0 /* not autosizing */
		313	|| !fiemap->fm_mapped_extents /* no more extents */
		314	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		315	goto done;
		316
		317	/* else we have to loop -
		318	* it would be tempting (actually I tried that first) to just query the
		319	* number of extents needed, but linux often feels like not returning all
		320	* extents, without telling us it left any out. this complicates
		321	* this quite a bit.
		322	*/
		323
		324	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		325
169	for (;;)	326	for (;;)
170	{	327	{
171	int count = req->int3;	328	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		329	char scratch[3072];
		330	struct fiemap *incmap = (struct fiemap *)scratch;
172		331
173	if (count < 0)	332	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
174	{	333	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
175	struct fiemap fiemap;	334	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		335	incmap->fm_flags = fiemap->fm_flags;
		336	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
176		337
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))	338	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183	return;	339	return;
184		340
185	count = fiemap.fm_mapped_extents;	341	if (!incmap->fm_mapped_extents)
186	}	342	goto done;
187		343
		344	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	345	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189	errno = ENOMEM;	346	errno = ENOMEM;
190	if (!fiemap)	347	if (!fiemap)
191	return;	348	return;
192		349
193	req->ptr1 = fiemap;	350	req->ptr1 = fiemap;
194	req->flags |= EIO_FLAG_PTR1_FREE;
195		351
196	fiemap->fm_start = req->offs;	352	for (count = 0; count < incmap->fm_mapped_extents; ++count)
197	fiemap->fm_length = req->size;	353	{
198	fiemap->fm_flags = req->int2;	354	struct fiemap_extent *e = incmap->fm_extents + count;
199	fiemap->fm_extent_count = count;
200		355
201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	356	if (e->fe_logical + e->fe_length >= end_offset)
202	return;	357	goto done;
203		358
204	if (req->int3 >= 0)	359	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
205	break; /* when not autosizing we are done */
206		360
207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	361	if (e->fe_flags & FIEMAP_EXTENT_LAST)
208	break; /* autosizing successful, we are done */	362	goto done;
209		363
210	free (fiemap);	364	}
211	}	365	}
212		366
		367	done:
213	req->result = 0;	368	req->result = 0;
214		369
215	#else	370	#else
216	errno = ENOSYS;	371	errno = ENOSYS;
217	#endif	372	#endif
…		…
264	}	419	}
265		420
266	static SV *	421	static SV *
267	newSVaio_wd (aio_wd wd)	422	newSVaio_wd (aio_wd wd)
268	{	423	{
269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	424	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
270	}	425	}
271		426
272	static aio_req	427	static aio_req
273	SvAIO_REQ (SV *sv)	428	SvAIO_REQ (SV *sv)
274	{	429	{
…		…
293	|| SvTYPE (SvRV (sv)) != SVt_PVMG	448	|| SvTYPE (SvRV (sv)) != SVt_PVMG
294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	449	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	450	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296		451
297	return (aio_wd)(long)SvIVX (SvRV (sv));	452	return (aio_wd)(long)SvIVX (SvRV (sv));
		453	}
		454
		455	static SV *
		456	newmortalFH (int fd, int flags)
		457	{
		458	if (fd < 0)
		459	return &PL_sv_undef;
		460
		461	GV *gv = (GV *)sv_newmortal ();
		462	char sym[64];
		463	int symlen;
		464
		465	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		466	gv_init (gv, aio_stash, sym, symlen, 0);
		467
		468	symlen = snprintf (
		469	sym,
		470	sizeof (sym),
		471	"%s&=%d",
		472	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		473	fd
		474	);
		475
		476	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		477	? (SV *)gv : &PL_sv_undef;
298	}	478	}
299		479
300	static void	480	static void
301	aio_grp_feed (aio_req grp)	481	aio_grp_feed (aio_req grp)
302	{	482	{
…		…
430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	610	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
431	}	611	}
432	break;	612	break;
433		613
434	case EIO_OPEN:	614	case EIO_OPEN:
435	{	615	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;	616	break;
464		617
465	case EIO_STATVFS:	618	case EIO_STATVFS:
466	case EIO_FSTATVFS:	619	case EIO_FSTATVFS:
467	{	620	{
…		…
470	#ifndef _WIN32	623	#ifndef _WIN32
471	if (req->result >= 0)	624	if (req->result >= 0)
472	{	625	{
473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	626	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474	HV *hv = newHV ();	627	HV *hv = newHV ();
		628	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		629	* chooses to make it a struct.
		630	*/
		631	unsigned long fsid = 0;
		632	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
475		633
476	rv = sv_2mortal (newRV_noinc ((SV *)hv));	634	rv = sv_2mortal (newRV_noinc ((SV *)hv));
477		635
478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	636	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);	637	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);	639	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);	640	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);	641	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);	642	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);	643	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);	644	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	645	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);	646	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489	}	647	}
490	#endif	648	#endif
491		649
…		…
542	SvSETMAGIC (req->sv2);	700	SvSETMAGIC (req->sv2);
543	PUSHs (sv_result);	701	PUSHs (sv_result);
544	}	702	}
545	break;	703	break;
546		704
		705	case EIO_SLURP:
		706	{
		707	if (req->result >= 0)
		708	{
		709	/* if length was originally not known, we steal the malloc'ed memory */
		710	if (req->flags & EIO_FLAG_PTR2_FREE)
		711	{
		712	req->flags &= ~EIO_FLAG_PTR2_FREE;
		713	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		714	}
		715	else
		716	{
		717	SvCUR_set (req->sv2, req->result);
		718	*SvEND (req->sv2) = 0;
		719	SvPOK_only (req->sv2);
		720	}
		721
		722	SvSETMAGIC (req->sv2);
		723	}
		724
		725	PUSHs (sv_result);
		726	}
		727	break;
		728
547	case EIO_CUSTOM:	729	case EIO_CUSTOM:
548	if (req->feed == fiemap)	730	if (req->feed == fiemap)
549	{	731	{
		732	#if HAVE_FIEMAP
550	if (!req->result)	733	if (!req->result)
551	{	734	{
552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;	735	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
553		736
554	if (fiemap->fm_extent_count)	737	if (fiemap->fm_extent_count)
…		…
575	{	758	{
576	SvIV_set (sv_result, fiemap->fm_mapped_extents);	759	SvIV_set (sv_result, fiemap->fm_mapped_extents);
577	PUSHs (sv_result);	760	PUSHs (sv_result);
578	}	761	}
579	}	762	}
		763	#endif
580	}	764	}
581	else	765	else
582	PUSHs (sv_result);	766	PUSHs (sv_result);
583	break;	767	break;
584		768
…		…
654	{	838	{
655	while (eio_nreqs ())	839	while (eio_nreqs ())
656	{	840	{
657	int size;	841	int size;
658		842
659	X_LOCK (reslock);	843	X_LOCK (EIO_POOL->reslock);
660	size = res_queue.size;	844	size = EIO_POOL->res_queue.size;
661	X_UNLOCK (reslock);	845	X_UNLOCK (EIO_POOL->reslock);
662		846
663	if (size)	847	if (size)
664	return;	848	return;
665		849
666	etp_maybe_start_thread ();	850	etp_maybe_start_thread (EIO_POOL);
667		851
668	s_epipe_wait (&respipe);	852	s_epipe_wait (&respipe);
669	}	853	}
670	}	854	}
671		855
…		…
692	create_respipe ();	876	create_respipe ();
693		877
694	if (eio_init (want_poll, done_poll) < 0)	878	if (eio_init (want_poll, done_poll) < 0)
695	croak ("IO::AIO: unable to initialise eio library");	879	croak ("IO::AIO: unable to initialise eio library");
696	}	880	}
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		881
741	/*****************************************************************************/	882	/*****************************************************************************/
742		883
743	static SV *	884	static SV *
744	get_cb (SV *cb_sv)	885	get_cb (SV *cb_sv)
…		…
840	req_set_path1 (req, fh_or_path);	981	req_set_path1 (req, fh_or_path);
841	break;	982	break;
842	}	983	}
843	}	984	}
844		985
		986	/*****************************************************************************/
		987
		988	static void
		989	ts_set (struct timespec *ts, NV value)
		990	{
		991	ts->tv_sec = value;
		992	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		993	}
		994
		995	static NV
		996	ts_get (const struct timespec *ts)
		997	{
		998	return ts->tv_sec + ts->tv_nsec * 1e-9;
		999	}
		1000
		1001	/*****************************************************************************/
		1002
845	XS(boot_IO__AIO) ecb_cold;	1003	XS(boot_IO__AIO) ecb_cold;
846		1004
847	MODULE = IO::AIO PACKAGE = IO::AIO	1005	MODULE = IO::AIO PACKAGE = IO::AIO
848		1006
849	PROTOTYPES: ENABLE	1007	PROTOTYPES: ENABLE
…		…
856	} *civ, const_iv[] = {	1014	} *civ, const_iv[] = {
857	# define const_niv(name, value) { # name, (IV) value },	1015	# define const_niv(name, value) { # name, (IV) value },
858	# define const_iv(name) { # name, (IV) name },	1016	# define const_iv(name) { # name, (IV) name },
859	# define const_eio(name) { # name, (IV) EIO_ ## name },	1017	# define const_eio(name) { # name, (IV) EIO_ ## name },
860		1018
861	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1019	/* you have to re-run ./gendef0 after adding/removing any constants here */
862		1020	/* the first block can be undef if missing */
863	const_iv (ENOSYS)	1021	const_iv (ENOSYS)
864	const_iv (EXDEV)	1022	const_iv (EXDEV)
865	const_iv (EBADR)	1023	const_iv (EBADR)
866		1024
		1025	/* for lseek */
		1026	const_iv (SEEK_DATA)
		1027	const_iv (SEEK_HOLE)
		1028
		1029	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1030	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1031	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1032	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1033	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1034	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1035
		1036	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1037	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1038	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1039	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1040	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1041
		1042	/* the second block will be 0 when missing */
867	const_iv (O_RDONLY)	1043	const_iv (O_RDONLY)
868	const_iv (O_WRONLY)	1044	const_iv (O_WRONLY)
869	const_iv (O_RDWR)	1045	const_iv (O_RDWR)
870	const_iv (O_CREAT)	1046	const_iv (O_CREAT)
871	const_iv (O_TRUNC)	1047	const_iv (O_TRUNC)
…		…
884	const_iv (O_SEARCH)	1060	const_iv (O_SEARCH)
885	const_iv (O_DIRECTORY)	1061	const_iv (O_DIRECTORY)
886	const_iv (O_DSYNC)	1062	const_iv (O_DSYNC)
887	const_iv (O_RSYNC)	1063	const_iv (O_RSYNC)
888	const_iv (O_SYNC)	1064	const_iv (O_SYNC)
		1065	const_iv (O_PATH)
		1066	const_iv (O_TMPFILE)
889	const_iv (O_TTY_INIT)	1067	const_iv (O_TTY_INIT)
890		1068
891	const_iv (S_IFIFO)	1069	const_iv (S_IFIFO)
892	const_iv (S_IFCHR)	1070	const_iv (S_IFCHR)
893	const_iv (S_IFBLK)	1071	const_iv (S_IFBLK)
…		…
895	const_iv (S_IFREG)	1073	const_iv (S_IFREG)
896	const_iv (S_IFDIR)	1074	const_iv (S_IFDIR)
897	const_iv (S_IFWHT)	1075	const_iv (S_IFWHT)
898	const_iv (S_IFSOCK)	1076	const_iv (S_IFSOCK)
899	const_iv (S_IFMT)	1077	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		1078
914	const_iv (ST_RDONLY)	1079	const_iv (ST_RDONLY)
915	const_iv (ST_NOSUID)	1080	const_iv (ST_NOSUID)
916	const_iv (ST_NODEV)	1081	const_iv (ST_NODEV)
917	const_iv (ST_NOEXEC)	1082	const_iv (ST_NOEXEC)
…		…
927	const_iv (PROT_NONE)	1092	const_iv (PROT_NONE)
928	const_iv (PROT_EXEC)	1093	const_iv (PROT_EXEC)
929	const_iv (PROT_READ)	1094	const_iv (PROT_READ)
930	const_iv (PROT_WRITE)	1095	const_iv (PROT_WRITE)
931		1096
932	/*const_iv (MAP_FIXED)*/
933	const_iv (MAP_PRIVATE)	1097	const_iv (MAP_PRIVATE)
934	const_iv (MAP_SHARED)	1098	const_iv (MAP_SHARED)
		1099	const_iv (MAP_FIXED)
935	const_iv (MAP_ANONYMOUS)	1100	const_iv (MAP_ANONYMOUS)
936		1101
937	/* linuxish */	1102	/* linuxish */
938	const_iv (MAP_HUGETLB)
939	const_iv (MAP_LOCKED)	1103	const_iv (MAP_LOCKED)
940	const_iv (MAP_NORESERVE)	1104	const_iv (MAP_NORESERVE)
941	const_iv (MAP_POPULATE)	1105	const_iv (MAP_POPULATE)
942	const_iv (MAP_NONBLOCK)	1106	const_iv (MAP_NONBLOCK)
		1107	const_iv (MAP_GROWSDOWN)
		1108	const_iv (MAP_32BIT)
		1109	const_iv (MAP_HUGETLB)
		1110	const_iv (MAP_STACK)
		1111
		1112	const_iv (MREMAP_MAYMOVE)
		1113	const_iv (MREMAP_FIXED)
		1114
		1115	const_iv (F_DUPFD_CLOEXEC)
		1116
		1117	const_iv (F_OFD_GETLK)
		1118	const_iv (F_OFD_SETLK)
		1119	const_iv (F_OFD_GETLKW)
		1120
		1121	const_iv (FIFREEZE)
		1122	const_iv (FITHAW)
		1123	const_iv (FITRIM)
		1124	const_iv (FICLONE)
		1125	const_iv (FICLONERANGE)
		1126	const_iv (FIDEDUPERANGE)
		1127
		1128	const_iv (FS_IOC_GETFLAGS)
		1129	const_iv (FS_IOC_SETFLAGS)
		1130	const_iv (FS_IOC_GETVERSION)
		1131	const_iv (FS_IOC_SETVERSION)
		1132	const_iv (FS_IOC_FIEMAP)
		1133	const_iv (FS_IOC_FSGETXATTR)
		1134	const_iv (FS_IOC_FSSETXATTR)
		1135	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1136	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1137	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1138
		1139	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1140
		1141	const_iv (FS_SECRM_FL)
		1142	const_iv (FS_UNRM_FL)
		1143	const_iv (FS_COMPR_FL)
		1144	const_iv (FS_SYNC_FL)
		1145	const_iv (FS_IMMUTABLE_FL)
		1146	const_iv (FS_APPEND_FL)
		1147	const_iv (FS_NODUMP_FL)
		1148	const_iv (FS_NOATIME_FL)
		1149	const_iv (FS_DIRTY_FL)
		1150	const_iv (FS_COMPRBLK_FL)
		1151	const_iv (FS_NOCOMP_FL)
		1152	const_iv (FS_ENCRYPT_FL)
		1153	const_iv (FS_BTREE_FL)
		1154	const_iv (FS_INDEX_FL)
		1155	const_iv (FS_JOURNAL_DATA_FL)
		1156	const_iv (FS_NOTAIL_FL)
		1157	const_iv (FS_DIRSYNC_FL)
		1158	const_iv (FS_TOPDIR_FL)
		1159	const_iv (FS_FL_USER_MODIFIABLE)
		1160
		1161	const_iv (FS_XFLAG_REALTIME)
		1162	const_iv (FS_XFLAG_PREALLOC)
		1163	const_iv (FS_XFLAG_IMMUTABLE)
		1164	const_iv (FS_XFLAG_APPEND)
		1165	const_iv (FS_XFLAG_SYNC)
		1166	const_iv (FS_XFLAG_NOATIME)
		1167	const_iv (FS_XFLAG_NODUMP)
		1168	const_iv (FS_XFLAG_RTINHERIT)
		1169	const_iv (FS_XFLAG_PROJINHERIT)
		1170	const_iv (FS_XFLAG_NOSYMLINKS)
		1171	const_iv (FS_XFLAG_EXTSIZE)
		1172	const_iv (FS_XFLAG_EXTSZINHERIT)
		1173	const_iv (FS_XFLAG_NODEFRAG)
		1174	const_iv (FS_XFLAG_FILESTREAM)
		1175	const_iv (FS_XFLAG_DAX)
		1176	const_iv (FS_XFLAG_HASATTR)
943		1177
944	const_iv (FIEMAP_FLAG_SYNC)	1178	const_iv (FIEMAP_FLAG_SYNC)
945	const_iv (FIEMAP_FLAG_XATTR)	1179	const_iv (FIEMAP_FLAG_XATTR)
946	const_iv (FIEMAP_FLAGS_COMPAT)	1180	const_iv (FIEMAP_FLAGS_COMPAT)
947	const_iv (FIEMAP_EXTENT_LAST)	1181	const_iv (FIEMAP_EXTENT_LAST)
…		…
954	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1188	const_iv (FIEMAP_EXTENT_DATA_TAIL)
955	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1189	const_iv (FIEMAP_EXTENT_UNWRITTEN)
956	const_iv (FIEMAP_EXTENT_MERGED)	1190	const_iv (FIEMAP_EXTENT_MERGED)
957	const_iv (FIEMAP_EXTENT_SHARED)	1191	const_iv (FIEMAP_EXTENT_SHARED)
958		1192
		1193	const_iv (SPLICE_F_MOVE)
		1194	const_iv (SPLICE_F_NONBLOCK)
		1195	const_iv (SPLICE_F_MORE)
		1196	const_iv (SPLICE_F_GIFT)
		1197
		1198	const_iv (EFD_CLOEXEC)
		1199	const_iv (EFD_NONBLOCK)
		1200	const_iv (EFD_SEMAPHORE)
		1201
		1202	const_iv (CLOCK_REALTIME)
		1203	const_iv (CLOCK_MONOTONIC)
		1204	const_iv (CLOCK_BOOTTIME)
		1205	const_iv (CLOCK_REALTIME_ALARM)
		1206	const_iv (CLOCK_BOOTTIME_ALARM)
		1207
		1208	const_iv (TFD_NONBLOCK)
		1209	const_iv (TFD_CLOEXEC)
		1210
		1211	const_iv (TFD_TIMER_ABSTIME)
		1212	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1213
		1214	/* these are libeio constants, and are independent of gendef0 */
959	const_eio (SEEK_SET)	1215	const_eio (SEEK_SET)
960	const_eio (SEEK_CUR)	1216	const_eio (SEEK_CUR)
961	const_eio (SEEK_END)	1217	const_eio (SEEK_END)
962		1218
963	const_eio (MCL_FUTURE)	1219	const_eio (MCL_FUTURE)
…		…
972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1228	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
973	const_eio (SYNC_FILE_RANGE_WRITE)	1229	const_eio (SYNC_FILE_RANGE_WRITE)
974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1230	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
975		1231
976	const_eio (FALLOC_FL_KEEP_SIZE)	1232	const_eio (FALLOC_FL_KEEP_SIZE)
		1233	const_eio (FALLOC_FL_PUNCH_HOLE)
		1234	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1235	const_eio (FALLOC_FL_ZERO_RANGE)
		1236	const_eio (FALLOC_FL_INSERT_RANGE)
		1237	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1238
		1239	const_eio (RENAME_NOREPLACE)
		1240	const_eio (RENAME_EXCHANGE)
		1241	const_eio (RENAME_WHITEOUT)
977		1242
978	const_eio (READDIR_DENTS)	1243	const_eio (READDIR_DENTS)
979	const_eio (READDIR_DIRS_FIRST)	1244	const_eio (READDIR_DIRS_FIRST)
980	const_eio (READDIR_STAT_ORDER)	1245	const_eio (READDIR_STAT_ORDER)
981	const_eio (READDIR_FOUND_UNKNOWN)	1246	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1049	PROTOTYPE: $	1314	PROTOTYPE: $
1050	CODE:	1315	CODE:
1051	max_outstanding = maxreqs;	1316	max_outstanding = maxreqs;
1052		1317
1053	void	1318	void
1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1319	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1055	PPCODE:	1320	PPCODE:
1056	{	1321	{
1057	dREQ;	1322	dREQ;
1058		1323
1059	req->type = EIO_WD_OPEN;	1324	req->type = EIO_WD_OPEN;
…		…
1061		1326
1062	REQ_SEND;	1327	REQ_SEND;
1063	}	1328	}
1064		1329
1065	void	1330	void
1066	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1331	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1067	PPCODE:	1332	PPCODE:
1068	{	1333	{
1069	dREQ;	1334	dREQ;
1070		1335
1071	req->type = EIO_OPEN;	1336	req->type = EIO_OPEN;
…		…
1075		1340
1076	REQ_SEND;	1341	REQ_SEND;
1077	}	1342	}
1078		1343
1079	void	1344	void
1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1345	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1081	ALIAS:	1346	ALIAS:
1082	aio_fsync = EIO_FSYNC	1347	aio_fsync = EIO_FSYNC
1083	aio_fdatasync = EIO_FDATASYNC	1348	aio_fdatasync = EIO_FDATASYNC
1084	aio_syncfs = EIO_SYNCFS	1349	aio_syncfs = EIO_SYNCFS
1085	PPCODE:	1350	PPCODE:
1086	{	1351	{
1087	int fd = s_fileno_croak (fh, 0);	1352	int fd = s_fileno_croak (fh, 0);
1088	dREQ;	1353	dREQ;
1089		1354
1090	req->type = ix;	1355	req->type = ix;
1091	req->sv1 = newSVsv (fh);	1356	req->sv1 = newSVsv (fh);
1092	req->int1 = fd;	1357	req->int1 = fd;
1093		1358
1094	REQ_SEND;	1359	REQ_SEND;
1095	}	1360	}
1096		1361
1097	void	1362	void
1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1363	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1099	PPCODE:	1364	PPCODE:
1100	{	1365	{
1101	int fd = s_fileno_croak (fh, 0);	1366	int fd = s_fileno_croak (fh, 0);
1102	dREQ;	1367	dREQ;
1103		1368
1104	req->type = EIO_SYNC_FILE_RANGE;	1369	req->type = EIO_SYNC_FILE_RANGE;
1105	req->sv1 = newSVsv (fh);	1370	req->sv1 = newSVsv (fh);
1106	req->int1 = fd;	1371	req->int1 = fd;
…		…
1110		1375
1111	REQ_SEND;	1376	REQ_SEND;
1112	}	1377	}
1113		1378
1114	void	1379	void
1115	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1380	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1116	PPCODE:	1381	PPCODE:
1117	{	1382	{
1118	int fd = s_fileno_croak (fh, 0);	1383	int fd = s_fileno_croak (fh, 0);
1119	dREQ;	1384	dREQ;
1120		1385
1121	req->type = EIO_FALLOCATE;	1386	req->type = EIO_FALLOCATE;
1122	req->sv1 = newSVsv (fh);	1387	req->sv1 = newSVsv (fh);
1123	req->int1 = fd;	1388	req->int1 = fd;
…		…
1127		1392
1128	REQ_SEND;	1393	REQ_SEND;
1129	}	1394	}
1130		1395
1131	void	1396	void
1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1397	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1133	PPCODE:	1398	PPCODE:
1134	{	1399	{
1135	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1400	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1136	int fd = s_fileno_croak (fh, 0);	1401	int fd = s_fileno_croak (fh, 0);
1137	dREQ;	1402	dREQ;
1138		1403
1139	if (expect_false (close_fd < 0))	1404	if (expect_false (close_fd < 0))
1140	{	1405	{
1141	int pipefd [2];	1406	int pipefd [2];
…		…
1161		1426
1162	REQ_SEND;	1427	REQ_SEND;
1163	}	1428	}
1164		1429
1165	void	1430	void
1166	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1431	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1167	PPCODE:	1432	PPCODE:
1168	{	1433	{
1169	STRLEN svlen;
1170	int fd = s_fileno_croak (fh, 0);	1434	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1435	dREQ;
1172		1436
1173	req->type = EIO_SEEK;	1437	req->type = EIO_SEEK;
1174	req->sv1 = newSVsv (fh);	1438	req->sv1 = newSVsv (fh);
…		…
1178		1442
1179	REQ_SEND;	1443	REQ_SEND;
1180	}	1444	}
1181		1445
1182	void	1446	void
1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1447	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1184	ALIAS:	1448	ALIAS:
1185	aio_read = EIO_READ	1449	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1450	aio_write = EIO_WRITE
1187	PPCODE:	1451	PPCODE:
1188	{	1452	{
…		…
1204	len = svlen - dataoffset;	1468	len = svlen - dataoffset;
1205	}	1469	}
1206	else	1470	else
1207	{	1471	{
1208	/* read: check type and grow scalar as necessary */	1472	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1473	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1474	svptr = sv_grow (data, len + dataoffset + 1);
		1475	else if (SvCUR (data) < len + dataoffset)
		1476	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1477	}
1212		1478
1213	{	1479	{
1214	dREQ;	1480	dREQ;
1215		1481
…		…
1231	REQ_SEND;	1497	REQ_SEND;
1232	}	1498	}
1233	}	1499	}
1234		1500
1235	void	1501	void
		1502	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1503	ALIAS:
		1504	aio_ioctl = EIO_IOCTL
		1505	aio_fcntl = EIO_FCNTL
		1506	PPCODE:
		1507	{
		1508	int fd = s_fileno_croak (fh, 0);
		1509	char *svptr;
		1510
		1511	if (SvPOK (arg) || !SvNIOK (arg))
		1512	{
		1513	STRLEN svlen;
		1514	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1515	#ifdef IOCPARM_LEN
		1516	STRLEN need = IOCPARM_LEN (request);
		1517	#else
		1518	STRLEN need = 256;
		1519	#endif
		1520
		1521	if (svlen < need)
		1522	svptr = SvGROW (arg, need);
		1523	}
		1524	else
		1525	svptr = (char *)SvIV (arg);
		1526
		1527	{
		1528	dREQ;
		1529
		1530	req->type = ix;
		1531	req->sv1 = newSVsv (fh);
		1532	req->int1 = fd;
		1533	req->int2 = (long)request;
		1534	req->sv2 = SvREFCNT_inc (arg);
		1535	req->ptr2 = svptr;
		1536
		1537	REQ_SEND;
		1538	}
		1539	}
		1540
		1541	void
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1542	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1543	ALIAS:
1238	aio_readlink = EIO_READLINK	1544	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1545	aio_realpath = EIO_REALPATH
1240	PPCODE:	1546	PPCODE:
1241	{	1547	{
…		…
1246		1552
1247	REQ_SEND;	1553	REQ_SEND;
1248	}	1554	}
1249		1555
1250	void	1556	void
1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1557	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1252	PPCODE:	1558	PPCODE:
1253	{	1559	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1560	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1561	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1562	dREQ;
1257		1563
1258	req->type = EIO_SENDFILE;	1564	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1566	req->int1 = ofd;
…		…
1265		1571
1266	REQ_SEND;	1572	REQ_SEND;
1267	}	1573	}
1268		1574
1269	void	1575	void
1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1271	PPCODE:	1577	PPCODE:
1272	{	1578	{
1273	int fd = s_fileno_croak (fh, 0);	1579	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1580	dREQ;
1275		1581
1276	req->type = EIO_READAHEAD;	1582	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1584	req->int1 = fd;
…		…
1281		1587
1282	REQ_SEND;	1588	REQ_SEND;
1283	}	1589	}
1284		1590
1285	void	1591	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1593	ALIAS:
1288	aio_stat = EIO_STAT	1594	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1595	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1596	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1597	PPCODE:
…		…
1300	UV	1606	UV
1301	major (UV dev)	1607	major (UV dev)
1302	ALIAS:	1608	ALIAS:
1303	minor = 1	1609	minor = 1
1304	CODE:	1610	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1611	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1612	OUTPUT:
1307	RETVAL	1613	RETVAL
1308		1614
1309	UV	1615	UV
1310	makedev (UV maj, UV min)	1616	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1618	RETVAL = makedev (maj, min);
1313	OUTPUT:	1619	OUTPUT:
1314	RETVAL	1620	RETVAL
1315		1621
1316	void	1622	void
1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1623	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1318	PPCODE:	1624	PPCODE:
1319	{	1625	{
1320	dREQ;	1626	dREQ;
1321		1627
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1628	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1631
1326	REQ_SEND;	1632	REQ_SEND;
1327	}	1633	}
1328		1634
1329	void	1635	void
1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1636	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1331	PPCODE:	1637	PPCODE:
1332	{	1638	{
1333	dREQ;	1639	dREQ;
1334		1640
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1643
1338	REQ_SEND;	1644	REQ_SEND;
1339	}	1645	}
1340		1646
1341	void	1647	void
1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1648	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1343	PPCODE:	1649	PPCODE:
1344	{	1650	{
1345	dREQ;	1651	dREQ;
1346		1652
1347	req->int2 = mode;	1653	req->int2 = mode;
…		…
1349		1655
1350	REQ_SEND;	1656	REQ_SEND;
1351	}	1657	}
1352		1658
1353	void	1659	void
1354	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1660	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1355	PPCODE:	1661	PPCODE:
1356	{	1662	{
1357	dREQ;	1663	dREQ;
1358		1664
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1665	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1668
1363	REQ_SEND;	1669	REQ_SEND;
1364	}	1670	}
1365		1671
1366	void	1672	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1673	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1674	PPCODE:
1369	{	1675	{
1370	dREQ;	1676	dREQ;
1371		1677
1372	req->type = EIO_READDIR;	1678	req->type = EIO_READDIR;
…		…
1379		1685
1380	REQ_SEND;	1686	REQ_SEND;
1381	}	1687	}
1382		1688
1383	void	1689	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1690	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1691	PPCODE:
1386	{	1692	{
1387	dREQ;	1693	dREQ;
1388		1694
1389	req->type = EIO_MKDIR;	1695	req->type = EIO_MKDIR;
…		…
1392		1698
1393	REQ_SEND;	1699	REQ_SEND;
1394	}	1700	}
1395		1701
1396	void	1702	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1703	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1704	ALIAS:
1399	aio_unlink = EIO_UNLINK	1705	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1706	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1707	aio_readdir = EIO_READDIR
1402	PPCODE:	1708	PPCODE:
…		…
1408		1714
1409	REQ_SEND;	1715	REQ_SEND;
1410	}	1716	}
1411		1717
1412	void	1718	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1719	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1720	ALIAS:
1415	aio_link = EIO_LINK	1721	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1722	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1723	aio_rename = EIO_RENAME
1418	PPCODE:	1724	PPCODE:
…		…
1427		1733
1428	REQ_SEND;	1734	REQ_SEND;
1429	}	1735	}
1430		1736
1431	void	1737	void
		1738	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1739	PPCODE:
		1740	{
		1741	eio_wd wd2 = 0;
		1742	dREQ;
		1743
		1744	req->type = EIO_RENAME;
		1745	req_set_path1 (req, oldpath);
		1746	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1747	req->int2 = flags;
		1748	req->int3 = (long)wd2;
		1749
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
1432	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1754	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1433	PPCODE:	1755	PPCODE:
1434	{	1756	{
1435	dREQ;	1757	dREQ;
1436		1758
1437	req->type = EIO_MKNOD;	1759	req->type = EIO_MKNOD;
…		…
1441		1763
1442	REQ_SEND;	1764	REQ_SEND;
1443	}	1765	}
1444		1766
1445	void	1767	void
1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1768	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1447	ALIAS:	1769	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1770	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1771	aio_msync = EIO_MSYNC
1450	PPCODE:	1772	PPCODE:
1451	{	1773	{
1452	STRLEN svlen;	1774	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1775	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1776	UV len = SvUV (length);
		1777
		1778	if (flags < 0)
		1779	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1780
1456	if (offset < 0)	1781	if (offset < 0)
1457	offset += svlen;	1782	offset += svlen;
1458		1783
1459	if (offset < 0 || offset > svlen)	1784	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1799	REQ_SEND;
1475	}	1800	}
1476	}	1801	}
1477		1802
1478	void	1803	void
1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1804	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1480	PPCODE:	1805	PPCODE:
1481	{	1806	{
1482	STRLEN svlen;	1807	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1808	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1809	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1828	REQ_SEND;
1504	}	1829	}
1505	}	1830	}
1506		1831
1507	void	1832	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1833	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1834	PPCODE:
1510	{	1835	{
1511	dREQ;	1836	dREQ;
1512		1837
1513	req->type = EIO_MLOCKALL;	1838	req->type = EIO_MLOCKALL;
…		…
1515		1840
1516	REQ_SEND;	1841	REQ_SEND;
1517	}	1842	}
1518		1843
1519	void	1844	void
1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1845	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1521	PPCODE:	1846	PPCODE:
1522	{	1847	{
1523	int fd = s_fileno_croak (fh, 0);	1848	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1849	dREQ;
1525		1850
1526	req->type = EIO_CUSTOM;	1851	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1852	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1853	req->int1 = fd;
1529		1854
1530	req->feed = fiemap;	1855	req->feed = fiemap;
		1856	#if HAVE_FIEMAP
1531	/* keep our fingers crossed that the next two types are 64 bit */	1857	/* keep our fingers crossed that the next two types are 64 bit */
1532	req->offs = start;	1858	req->offs = start;
1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;	1859	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1534	req->int2 = flags;	1860	req->int2 = flags;
1535	req->int3 = SvOK (count) ? SvIV (count) : -1;	1861	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1862	#endif
1536		1863
1537	REQ_SEND;	1864	REQ_SEND;
1538	}	1865	}
1539		1866
1540	void	1867	void
		1868	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1869	PPCODE:
		1870	{
		1871	char *svptr = 0;
		1872
		1873	sv_clear_foreign (data);
		1874
		1875	if (length) /* known length, directly read into scalar */
		1876	{
		1877	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1878	svptr = sv_grow (data, length + 1);
		1879	else if (SvCUR (data) < length)
		1880	croak ("length outside of scalar, and cannot grow");
		1881	else
		1882	svptr = SvPVbyte_nolen (data);
		1883	}
		1884
		1885	{
		1886	dREQ;
		1887
		1888	req->type = EIO_SLURP;
		1889	req_set_path1 (req, pathname);
		1890	req->offs = offset;
		1891	req->size = length;
		1892	req->sv2 = SvREFCNT_inc (data);
		1893	req->ptr2 = svptr;
		1894
		1895	if (!SvREADONLY (data))
		1896	{
		1897	SvREADONLY_on (data);
		1898	req->flags |= FLAG_SV2_RO_OFF;
		1899	}
		1900
		1901	REQ_SEND;
		1902	}
		1903	}
		1904
		1905	void
1541	aio_busy (double delay, SV *callback=&PL_sv_undef)	1906	aio_busy (double delay, SV *callback = &PL_sv_undef)
1542	PPCODE:	1907	PPCODE:
1543	{	1908	{
1544	dREQ;	1909	dREQ;
1545		1910
1546	req->type = EIO_BUSY;	1911	req->type = EIO_BUSY;
…		…
1548		1913
1549	REQ_SEND;	1914	REQ_SEND;
1550	}	1915	}
1551		1916
1552	void	1917	void
1553	aio_group (SV *callback=&PL_sv_undef)	1918	aio_group (SV *callback = &PL_sv_undef)
1554	PPCODE:	1919	PPCODE:
1555	{	1920	{
1556	dREQ;	1921	dREQ;
1557		1922
1558	req->type = EIO_GROUP;	1923	req->type = EIO_GROUP;
1559		1924
		1925	PUTBACK;
1560	req_submit (req);	1926	req_submit (req);
		1927	SPAGAIN;
		1928
1561	XPUSHs (req_sv (req, aio_grp_stash));	1929	XPUSHs (req_sv (req, aio_grp_stash));
1562	}	1930	}
1563		1931
1564	void	1932	void
1565	aio_nop (SV *callback=&PL_sv_undef)	1933	aio_nop (SV *callback = &PL_sv_undef)
1566	ALIAS:	1934	ALIAS:
1567	aio_nop = EIO_NOP	1935	aio_nop = EIO_NOP
1568	aio_sync = EIO_SYNC	1936	aio_sync = EIO_SYNC
1569	PPCODE:	1937	PPCODE:
1570	{	1938	{
…		…
1574		1942
1575	REQ_SEND;	1943	REQ_SEND;
1576	}	1944	}
1577		1945
1578	int	1946	int
1579	aioreq_pri (int pri = 0)	1947	aioreq_pri (int pri = NO_INIT)
1580	CODE:	1948	CODE:
1581	RETVAL = next_pri;	1949	RETVAL = next_pri;
1582	if (items > 0)	1950	if (items > 0)
1583	{	1951	{
1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1952	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2042	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1675	OUTPUT:	2043	OUTPUT:
1676	RETVAL	2044	RETVAL
1677		2045
1678	void	2046	void
1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2047	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1680	PPCODE:	2048	PPCODE:
1681	sv_unmagic (scalar, MMAP_MAGIC);	2049	sv_clear_foreign (scalar);
1682	{	2050	{
1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2051	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2052	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1685	if (addr == (void *)-1)	2053	if (addr == (void *)-1)
1686	XSRETURN_NO;	2054	XSRETURN_NO;
1687		2055
1688	sv_force_normal (scalar);	2056	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		2057
1696	if (!(prot & PROT_WRITE))	2058	if (!(prot & PROT_WRITE))
1697	SvREADONLY_on (scalar);	2059	SvREADONLY_on (scalar);
1698		2060
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;	2061	XSRETURN_YES;
1708	}	2062	}
1709		2063
1710	void	2064	void
1711	munmap (SV *scalar)	2065	munmap (SV *scalar)
1712	CODE:	2066	CODE:
1713	sv_unmagic (scalar, MMAP_MAGIC);	2067	sv_clear_foreign (scalar);
		2068
		2069	SV *
		2070	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2071	CODE:
		2072	{
		2073	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2074	void *new;
		2075
		2076	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2077	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2078
		2079	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2080
		2081	RETVAL = &PL_sv_no;
		2082
		2083	if (new != (void *)-1)
		2084	{
		2085	RETVAL = new == (void *)mg->mg_ptr
		2086	? newSVpvn ("0 but true", 10)
		2087	: &PL_sv_yes;
		2088
		2089	mg->mg_ptr = (char *)new;
		2090	mg->mg_obj = (SV *)new_length;
		2091
		2092	SvPVX (scalar) = mg->mg_ptr;
		2093	SvCUR_set (scalar, new_length);
		2094	}
		2095	}
		2096	OUTPUT:
		2097	RETVAL
1714		2098
1715	int	2099	int
1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2100	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1717	ALIAS:	2101	ALIAS:
1718	mprotect = 1	2102	mprotect = 1
1719	CODE:	2103	CODE:
1720	{	2104	{
1721	STRLEN svlen;	2105	STRLEN svlen;
1722	void *addr = SvPVbyte (scalar, svlen);	2106	void *addr = SvPVbyte (scalar, svlen);
1723	size_t len = SvUV (length);	2107	STRLEN len = SvUV (length);
1724		2108
1725	if (offset < 0)	2109	if (offset < 0)
1726	offset += svlen;	2110	offset += svlen;
1727		2111
1728	if (offset < 0 || offset > svlen)	2112	if (offset < 0 || offset > svlen)
…		…
1742	}	2126	}
1743	OUTPUT:	2127	OUTPUT:
1744	RETVAL	2128	RETVAL
1745		2129
1746	int	2130	int
1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2131	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1748	CODE:	2132	CODE:
1749	{	2133	{
1750	STRLEN svlen;	2134	STRLEN svlen;
1751	void *addr = SvPVbyte (scalar, svlen);	2135	void *addr = SvPVbyte (scalar, svlen);
1752	size_t len = SvUV (length);	2136	size_t len = SvUV (length);
1753		2137
1754	if (offset < 0)	2138	if (offset < 0)
1755	offset += svlen;	2139	offset += svlen;
1756		2140
…		…
1763	addr = (void *)(((intptr_t)addr) + offset);	2147	addr = (void *)(((intptr_t)addr) + offset);
1764	eio_page_align (&addr, &len);	2148	eio_page_align (&addr, &len);
1765	#if _POSIX_MEMLOCK_RANGE	2149	#if _POSIX_MEMLOCK_RANGE
1766	RETVAL = munlock (addr, len);	2150	RETVAL = munlock (addr, len);
1767	#else	2151	#else
1768	RETVAL = ((errno = ENOSYS), -1);	2152	RETVAL = EIO_ENOSYS ();
1769	#endif	2153	#endif
1770	}	2154	}
1771	OUTPUT:	2155	OUTPUT:
1772	RETVAL	2156	RETVAL
1773		2157
…		…
1775	munlockall ()	2159	munlockall ()
1776	CODE:	2160	CODE:
1777	#if _POSIX_MEMLOCK	2161	#if _POSIX_MEMLOCK
1778	munlockall ();	2162	munlockall ();
1779	#else	2163	#else
1780	RETVAL = -1;	2164	RETVAL = EIO_ENOSYS ();
1781	errno = ENOSYS;
1782	#endif	2165	#endif
1783	OUTPUT:	2166	OUTPUT:
1784	RETVAL	2167	RETVAL
		2168
		2169	int
		2170	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2171	CODE:
		2172	{
		2173	#if HAVE_LINUX_SPLICE
		2174	loff_t off_in_, off_out_;
		2175	RETVAL = splice (
		2176	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2177	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2178	length, flags
		2179	);
		2180	#else
		2181	RETVAL = EIO_ENOSYS ();
		2182	#endif
		2183	}
		2184	OUTPUT:
		2185	RETVAL
		2186
		2187	int
		2188	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2189	CODE:
		2190	#if HAVE_LINUX_SPLICE
		2191	RETVAL = tee (rfh, wfh, length, flags);
		2192	#else
		2193	RETVAL = EIO_ENOSYS ();
		2194	#endif
		2195	OUTPUT:
		2196	RETVAL
		2197
		2198	int
		2199	pipesize (aio_rfd rfh, int new_size = -1)
		2200	PROTOTYPE: $;$
		2201	CODE:
		2202	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2203	if (new_size >= 0)
		2204	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2205	else
		2206	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2207	#else
		2208	errno = ENOSYS;
		2209	RETVAL = -1;
		2210	#endif
		2211	OUTPUT:
		2212	RETVAL
		2213
		2214	void
		2215	pipe2 (int flags = 0)
		2216	PROTOTYPE: ;$
		2217	PPCODE:
		2218	{
		2219	int fd[2];
		2220	int res;
		2221
		2222	if (flags)
		2223	#if HAVE_PIPE2
		2224	res = pipe2 (fd, flags);
		2225	#else
		2226	res = (errno = ENOSYS, -1);
		2227	#endif
		2228	else
		2229	res = pipe (fd);
		2230
		2231	if (!res)
		2232	{
		2233	EXTEND (SP, 2);
		2234	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2235	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2236	}
		2237	}
		2238
		2239	void
		2240	eventfd (unsigned int initval = 0, int flags = 0)
		2241	PPCODE:
		2242	{
		2243	int fd;
		2244	#if HAVE_EVENTFD
		2245	fd = eventfd (initval, flags);
		2246	#else
		2247	fd = (errno = ENOSYS, -1);
		2248	#endif
		2249
		2250	XPUSHs (newmortalFH (fd, O_RDWR));
		2251	}
		2252
		2253	void
		2254	timerfd_create (int clockid, int flags = 0)
		2255	PPCODE:
		2256	{
		2257	int fd;
		2258	#if HAVE_TIMERFD
		2259	fd = timerfd_create (clockid, flags);
		2260	#else
		2261	fd = (errno = ENOSYS, -1);
		2262	#endif
		2263
		2264	XPUSHs (newmortalFH (fd, O_RDWR));
		2265	}
		2266
		2267	void
		2268	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2269	PPCODE:
		2270	{
		2271	int fd = s_fileno_croak (fh, 0);
		2272	#if HAVE_TIMERFD
		2273	int res;
		2274	struct itimerspec its, ots;
		2275
		2276	ts_set (&its.it_interval, interval);
		2277	ts_set (&its.it_value , value);
		2278	res = timerfd_settime (fd, flags, &its, &ots);
		2279
		2280	if (!res)
		2281	{
		2282	EXTEND (SP, 2);
		2283	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2284	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2285	}
		2286	#else
		2287	errno = ENOSYS;
		2288	#endif
		2289	}
		2290
		2291	void
		2292	timerfd_gettime (SV *fh)
		2293	PPCODE:
		2294	{
		2295	int fd = s_fileno_croak (fh, 0);
		2296	#if HAVE_TIMERFD
		2297	int res;
		2298	struct itimerspec ots;
		2299	res = timerfd_gettime (fd, &ots);
		2300
		2301	if (!res)
		2302	{
		2303	EXTEND (SP, 2);
		2304	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2305	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2306	}
		2307	#else
		2308	errno = ENOSYS;
		2309	#endif
		2310	}
		2311
		2312	UV
		2313	get_fdlimit ()
		2314	CODE:
		2315	#if HAVE_RLIMITS
		2316	struct rlimit rl;
		2317	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2318	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2319	#endif
		2320	XSRETURN_UNDEF;
		2321	OUTPUT:
		2322	RETVAL
		2323
		2324	void
		2325	min_fdlimit (UV limit = 0x7fffffffU)
		2326	CODE:
		2327	{
		2328	#if HAVE_RLIMITS
		2329	struct rlimit rl;
		2330	rlim_t orig_rlim_max;
		2331	UV bit;
		2332
		2333	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2334	goto fail;
		2335
		2336	if (rl.rlim_cur == RLIM_INFINITY)
		2337	XSRETURN_YES;
		2338
		2339	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2340
		2341	if (rl.rlim_cur < limit)
		2342	{
		2343	rl.rlim_cur = limit;
		2344
		2345	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2346	rl.rlim_max = rl.rlim_cur;
		2347	}
		2348
		2349	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2350	XSRETURN_YES;
		2351
		2352	if (errno == EPERM)
		2353	{
		2354	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2355	/* our limit overflows a system-wide limit */
		2356	/* try an adaptive algorithm, but do not lower the hardlimit */
		2357	rl.rlim_max = 0;
		2358	for (bit = 0x40000000U; bit; bit >>= 1)
		2359	{
		2360	rl.rlim_max |= bit;
		2361	rl.rlim_cur = rl.rlim_max;
		2362
		2363	/* nevr decrease the hard limit */
		2364	if (rl.rlim_max < orig_rlim_max)
		2365	break;
		2366
		2367	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2368	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2369	}
		2370
		2371	/* now, raise the soft limit to the max permitted */
		2372	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2373	{
		2374	rl.rlim_cur = rl.rlim_max;
		2375	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2376	errno = EPERM;
		2377	}
		2378	}
		2379	#endif
		2380	fail:
		2381	XSRETURN_UNDEF;
		2382	}
1785		2383
1786	void _on_next_submit (SV *cb)	2384	void _on_next_submit (SV *cb)
1787	CODE:	2385	CODE:
1788	SvREFCNT_dec (on_next_submit);	2386	SvREFCNT_dec (on_next_submit);
1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2387	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1824	cancel (aio_req_ornot req)	2422	cancel (aio_req_ornot req)
1825	CODE:	2423	CODE:
1826	eio_cancel (req);	2424	eio_cancel (req);
1827		2425
1828	void	2426	void
1829	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2427	cb (aio_req_ornot req, SV *callback = NO_INIT)
1830	PPCODE:	2428	PPCODE:
1831	{	2429	{
1832	if (GIMME_V != G_VOID)	2430	if (GIMME_V != G_VOID)
1833	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2431	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1834		2432
1835	if (items > 1)	2433	if (items > 1)
1836	{	2434	{
1837	SV *cb_cv =get_cb (callback);	2435	SV *cb_cv = get_cb (callback);
1838		2436
1839	SvREFCNT_dec (req->callback);	2437	SvREFCNT_dec (req->callback);
1840	req->callback = SvREFCNT_inc (cb_cv);	2438	req->callback = SvREFCNT_inc (cb_cv);
1841	}	2439	}
1842	}	2440	}
…		…
1899	limit (aio_req grp, int limit)	2497	limit (aio_req grp, int limit)
1900	CODE:	2498	CODE:
1901	eio_grp_limit (grp, limit);	2499	eio_grp_limit (grp, limit);
1902		2500
1903	void	2501	void
1904	feed (aio_req grp, SV *callback=&PL_sv_undef)	2502	feed (aio_req grp, SV *callback = &PL_sv_undef)
1905	CODE:	2503	CODE:
1906	{	2504	{
1907	SvREFCNT_dec (grp->sv2);	2505	SvREFCNT_dec (grp->sv2);
1908	grp->sv2 = newSVsv (callback);	2506	grp->sv2 = newSVsv (callback);
1909	grp->feed = aio_grp_feed;	2507	grp->feed = aio_grp_feed;

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