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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
…		…
19		21
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	23	# include <sys/mman.h>
22	#endif	24	#endif
23		25
24	#if __linux__	26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	32	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	33	# ifdef FS_IOC_FIEMAP
		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;
169	int count = req->int3;	292	int count = req->int3;
170		293
171	/* heuristic: first try with 64 extents if we don't know how many, */	294	req->flags |= EIO_FLAG_PTR1_FREE;
172	/* as most files have (hopefully) fewer than this many extents */	295
173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
174	if (count < 0)	298	if (count < 0)
175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	299	count = 8;
		300
		301	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		302	errno = ENOMEM;
		303	if (!fiemap)
		304	return;
		305
		306	req->ptr1 = fiemap;
		307
		308	fiemap->fm_start = req->offs;
		309	fiemap->fm_length = req->size;
		310	fiemap->fm_flags = req->int2;
		311	fiemap->fm_extent_count = count;
		312
		313	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		314	return;
		315
		316	if (req->int3 >= 0 /* not autosizing */
		317	|| !fiemap->fm_mapped_extents /* no more extents */
		318	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		319	goto done;
		320
		321	/* else we have to loop -
		322	* it would be tempting (actually I tried that first) to just query the
		323	* number of extents needed, but linux often feels like not returning all
		324	* extents, without telling us it left any out. this complicates
		325	* this quite a bit.
		326	*/
		327
		328	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
176		329
177	for (;;)	330	for (;;)
178	{	331	{
		332	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		333	char scratch[3072];
		334	struct fiemap *incmap = (struct fiemap *)scratch;
		335
		336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		338	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		339	incmap->fm_flags = fiemap->fm_flags;
		340	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		341
		342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		343	return;
		344
		345	if (!incmap->fm_mapped_extents)
		346	goto done;
		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
180	errno = ENOMEM;	350	errno = ENOMEM;
181	if (!fiemap)	351	if (!fiemap)
182	return;	352	return;
183		353
184	req->ptr1 = fiemap;	354	req->ptr1 = fiemap;
185	req->flags |= EIO_FLAG_PTR1_FREE;
186		355
187	fiemap->fm_start = req->offs;	356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
188	fiemap->fm_length = req->size;	357	{
189	fiemap->fm_flags = req->int2;	358	struct fiemap_extent *e = incmap->fm_extents + count;
190	fiemap->fm_extent_count = count;
191		359
192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	360	if (e->fe_logical + e->fe_length >= end_offset)
193	return;	361	goto done;
194		362
195	if (req->int3 >= 0)	363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
196	break; /* when not autosizing we are done */
197		364
198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
199	break; /* autosizing successful, we are done */	366	goto done;
200		367
201	fiemap->fm_flags = req->int2;	368	}
202	fiemap->fm_extent_count = 0;
203
204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
205	return;
206
207	count = fiemap->fm_mapped_extents;
208
209	free (fiemap);
210	}	369	}
211		370
		371	done:
212	req->result = 0;	372	req->result = 0;
213		373
214	#else	374	#else
215	errno = ENOSYS;	375	errno = ENOSYS;
216	#endif	376	#endif
…		…
263	}	423	}
264		424
265	static SV *	425	static SV *
266	newSVaio_wd (aio_wd wd)	426	newSVaio_wd (aio_wd wd)
267	{	427	{
268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	428	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
269	}	429	}
270		430
271	static aio_req	431	static aio_req
272	SvAIO_REQ (SV *sv)	432	SvAIO_REQ (SV *sv)
273	{	433	{
…		…
292	|| SvTYPE (SvRV (sv)) != SVt_PVMG	452	|| SvTYPE (SvRV (sv)) != SVt_PVMG
293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	453	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
294	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");
295		455
296	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;
297	}	482	}
298		483
299	static void	484	static void
300	aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
301	{	486	{
…		…
429	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))));
430	}	615	}
431	break;	616	break;
432		617
433	case EIO_OPEN:	618	case EIO_OPEN:
434	{	619	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
435	/* convert fd to fh */
436	SV *fh = &PL_sv_undef;
437
438	if (req->result >= 0)
439	{
440	GV *gv = (GV *)sv_newmortal ();
441	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
442	char sym [64];
443	int symlen;
444
445	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
446	gv_init (gv, aio_stash, sym, symlen, 0);
447
448	symlen = snprintf (
449	sym,
450	sizeof (sym),
451	"%s&=%d",
452	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
453	(int)req->result
454	);
455
456	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
457	fh = (SV *)gv;
458	}
459
460	PUSHs (fh);
461	}
462	break;	620	break;
463		621
464	case EIO_STATVFS:	622	case EIO_STATVFS:
465	case EIO_FSTATVFS:	623	case EIO_FSTATVFS:
466	{	624	{
…		…
469	#ifndef _WIN32	627	#ifndef _WIN32
470	if (req->result >= 0)	628	if (req->result >= 0)
471	{	629	{
472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
473	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));
474		637
475	rv = sv_2mortal (newRV_noinc ((SV *)hv));	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
476		639
477	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);
478	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);
…		…
480	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);
481	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);
482	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);
483	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);
484	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);
485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	648	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
486	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);
487	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);
488	}	651	}
489	#endif	652	#endif
490		653
…		…
541	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
542	PUSHs (sv_result);	705	PUSHs (sv_result);
543	}	706	}
544	break;	707	break;
545		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
546	case EIO_CUSTOM:	733	case EIO_CUSTOM:
547	if (req->feed == fiemap)	734	if (req->feed == fiemap)
548	{	735	{
549	#if HAVE_FIEMAP	736	#if HAVE_FIEMAP
550	if (!req->result)	737	if (!req->result)
…		…
655	{	842	{
656	while (eio_nreqs ())	843	while (eio_nreqs ())
657	{	844	{
658	int size;	845	int size;
659		846
660	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
661	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
662	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
663		850
664	if (size)	851	if (size)
665	return;	852	return;
666		853
667	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
668		855
669	s_epipe_wait (&respipe);	856	s_epipe_wait (&respipe);
670	}	857	}
671	}	858	}
672		859
…		…
693	create_respipe ();	880	create_respipe ();
694		881
695	if (eio_init (want_poll, done_poll) < 0)	882	if (eio_init (want_poll, done_poll) < 0)
696	croak ("IO::AIO: unable to initialise eio library");	883	croak ("IO::AIO: unable to initialise eio library");
697	}	884	}
698
699	/*****************************************************************************/
700
701	#if !_POSIX_MAPPED_FILES
702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
703	# define munmap(addr,length) (errno = ENOSYS, -1)
704	#endif
705
706	#if !_POSIX_MEMORY_PROTECTION
707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
708	# define PROT_NONE 0
709	# define PROT_WRITE 0
710	# define MAP_PRIVATE 0
711	# define MAP_SHARED 0
712	# define MAP_FIXED 0
713	#endif
714
715	#define MMAP_MAGIC PERL_MAGIC_ext
716
717	static int ecb_cold
718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
719	{
720	int old_errno = errno;
721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
722	errno = old_errno;
723
724	mg->mg_obj = 0; /* just in case */
725
726	SvREADONLY_off (sv);
727
728	if (SvPVX (sv) != mg->mg_ptr)
729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
730
731	SvCUR_set (sv, 0);
732	SvPVX (sv) = 0;
733	SvOK_off (sv);
734
735	return 0;
736	}
737
738	static MGVTBL mmap_vtbl = {
739	0, 0, 0, 0, mmap_free
740	};
741		885
742	/*****************************************************************************/	886	/*****************************************************************************/
743		887
744	static SV *	888	static SV *
745	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
…		…
841	req_set_path1 (req, fh_or_path);	985	req_set_path1 (req, fh_or_path);
842	break;	986	break;
843	}	987	}
844	}	988	}
845		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
846	XS(boot_IO__AIO) ecb_cold;	1007	XS(boot_IO__AIO) ecb_cold;
847		1008
848	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
849		1010
850	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
…		…
857	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
858	# define const_niv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
859	# define const_iv(name) { # name, (IV) name },	1020	# define const_iv(name) { # name, (IV) name },
860	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
861		1022
862	/* 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 */
863		1024	/* the first block can be undef if missing */
864	const_iv (ENOSYS)	1025	const_iv (ENOSYS)
865	const_iv (EXDEV)	1026	const_iv (EXDEV)
866	const_iv (EBADR)	1027	const_iv (EBADR)
		1028
		1029	/* for lseek */
		1030	const_iv (SEEK_DATA)
		1031	const_iv (SEEK_HOLE)
		1032
		1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1038	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1039
		1040	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1041	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1045
		1046	/* the second block will be 0 when missing */
		1047	const_iv (O_ACCMODE)
867		1048
868	const_iv (O_RDONLY)	1049	const_iv (O_RDONLY)
869	const_iv (O_WRONLY)	1050	const_iv (O_WRONLY)
870	const_iv (O_RDWR)	1051	const_iv (O_RDWR)
871	const_iv (O_CREAT)	1052	const_iv (O_CREAT)
…		…
885	const_iv (O_SEARCH)	1066	const_iv (O_SEARCH)
886	const_iv (O_DIRECTORY)	1067	const_iv (O_DIRECTORY)
887	const_iv (O_DSYNC)	1068	const_iv (O_DSYNC)
888	const_iv (O_RSYNC)	1069	const_iv (O_RSYNC)
889	const_iv (O_SYNC)	1070	const_iv (O_SYNC)
		1071	const_iv (O_PATH)
		1072	const_iv (O_TMPFILE)
890	const_iv (O_TTY_INIT)	1073	const_iv (O_TTY_INIT)
891		1074
892	const_iv (S_IFIFO)	1075	const_iv (S_IFIFO)
893	const_iv (S_IFCHR)	1076	const_iv (S_IFCHR)
894	const_iv (S_IFBLK)	1077	const_iv (S_IFBLK)
…		…
896	const_iv (S_IFREG)	1079	const_iv (S_IFREG)
897	const_iv (S_IFDIR)	1080	const_iv (S_IFDIR)
898	const_iv (S_IFWHT)	1081	const_iv (S_IFWHT)
899	const_iv (S_IFSOCK)	1082	const_iv (S_IFSOCK)
900	const_iv (S_IFMT)	1083	const_iv (S_IFMT)
901
902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
908
909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
914		1084
915	const_iv (ST_RDONLY)	1085	const_iv (ST_RDONLY)
916	const_iv (ST_NOSUID)	1086	const_iv (ST_NOSUID)
917	const_iv (ST_NODEV)	1087	const_iv (ST_NODEV)
918	const_iv (ST_NOEXEC)	1088	const_iv (ST_NOEXEC)
…		…
928	const_iv (PROT_NONE)	1098	const_iv (PROT_NONE)
929	const_iv (PROT_EXEC)	1099	const_iv (PROT_EXEC)
930	const_iv (PROT_READ)	1100	const_iv (PROT_READ)
931	const_iv (PROT_WRITE)	1101	const_iv (PROT_WRITE)
932		1102
933	/*const_iv (MAP_FIXED)*/
934	const_iv (MAP_PRIVATE)	1103	const_iv (MAP_PRIVATE)
935	const_iv (MAP_SHARED)	1104	const_iv (MAP_SHARED)
		1105	const_iv (MAP_FIXED)
936	const_iv (MAP_ANONYMOUS)	1106	const_iv (MAP_ANONYMOUS)
937		1107
938	/* linuxish */	1108	/* linuxish */
939	const_iv (MAP_HUGETLB)
940	const_iv (MAP_LOCKED)	1109	const_iv (MAP_LOCKED)
941	const_iv (MAP_NORESERVE)	1110	const_iv (MAP_NORESERVE)
942	const_iv (MAP_POPULATE)	1111	const_iv (MAP_POPULATE)
943	const_iv (MAP_NONBLOCK)	1112	const_iv (MAP_NONBLOCK)
		1113	const_iv (MAP_GROWSDOWN)
		1114	const_iv (MAP_32BIT)
		1115	const_iv (MAP_HUGETLB)
		1116	const_iv (MAP_STACK)
		1117
		1118	const_iv (MREMAP_MAYMOVE)
		1119	const_iv (MREMAP_FIXED)
		1120
		1121	const_iv (F_DUPFD_CLOEXEC)
		1122
		1123	const_iv (F_OFD_GETLK)
		1124	const_iv (F_OFD_SETLK)
		1125	const_iv (F_OFD_GETLKW)
		1126
		1127	const_iv (FIFREEZE)
		1128	const_iv (FITHAW)
		1129	const_iv (FITRIM)
		1130	const_iv (FICLONE)
		1131	const_iv (FICLONERANGE)
		1132	const_iv (FIDEDUPERANGE)
		1133
		1134	const_iv (FS_IOC_GETFLAGS)
		1135	const_iv (FS_IOC_SETFLAGS)
		1136	const_iv (FS_IOC_GETVERSION)
		1137	const_iv (FS_IOC_SETVERSION)
		1138	const_iv (FS_IOC_FIEMAP)
		1139	const_iv (FS_IOC_FSGETXATTR)
		1140	const_iv (FS_IOC_FSSETXATTR)
		1141	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1142	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1143	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1144
		1145	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1146
		1147	const_iv (FS_SECRM_FL)
		1148	const_iv (FS_UNRM_FL)
		1149	const_iv (FS_COMPR_FL)
		1150	const_iv (FS_SYNC_FL)
		1151	const_iv (FS_IMMUTABLE_FL)
		1152	const_iv (FS_APPEND_FL)
		1153	const_iv (FS_NODUMP_FL)
		1154	const_iv (FS_NOATIME_FL)
		1155	const_iv (FS_DIRTY_FL)
		1156	const_iv (FS_COMPRBLK_FL)
		1157	const_iv (FS_NOCOMP_FL)
		1158	const_iv (FS_ENCRYPT_FL)
		1159	const_iv (FS_BTREE_FL)
		1160	const_iv (FS_INDEX_FL)
		1161	const_iv (FS_JOURNAL_DATA_FL)
		1162	const_iv (FS_NOTAIL_FL)
		1163	const_iv (FS_DIRSYNC_FL)
		1164	const_iv (FS_TOPDIR_FL)
		1165	const_iv (FS_FL_USER_MODIFIABLE)
		1166
		1167	const_iv (FS_XFLAG_REALTIME)
		1168	const_iv (FS_XFLAG_PREALLOC)
		1169	const_iv (FS_XFLAG_IMMUTABLE)
		1170	const_iv (FS_XFLAG_APPEND)
		1171	const_iv (FS_XFLAG_SYNC)
		1172	const_iv (FS_XFLAG_NOATIME)
		1173	const_iv (FS_XFLAG_NODUMP)
		1174	const_iv (FS_XFLAG_RTINHERIT)
		1175	const_iv (FS_XFLAG_PROJINHERIT)
		1176	const_iv (FS_XFLAG_NOSYMLINKS)
		1177	const_iv (FS_XFLAG_EXTSIZE)
		1178	const_iv (FS_XFLAG_EXTSZINHERIT)
		1179	const_iv (FS_XFLAG_NODEFRAG)
		1180	const_iv (FS_XFLAG_FILESTREAM)
		1181	const_iv (FS_XFLAG_DAX)
		1182	const_iv (FS_XFLAG_HASATTR)
944		1183
945	const_iv (FIEMAP_FLAG_SYNC)	1184	const_iv (FIEMAP_FLAG_SYNC)
946	const_iv (FIEMAP_FLAG_XATTR)	1185	const_iv (FIEMAP_FLAG_XATTR)
947	const_iv (FIEMAP_FLAGS_COMPAT)	1186	const_iv (FIEMAP_FLAGS_COMPAT)
948	const_iv (FIEMAP_EXTENT_LAST)	1187	const_iv (FIEMAP_EXTENT_LAST)
…		…
955	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1194	const_iv (FIEMAP_EXTENT_DATA_TAIL)
956	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1195	const_iv (FIEMAP_EXTENT_UNWRITTEN)
957	const_iv (FIEMAP_EXTENT_MERGED)	1196	const_iv (FIEMAP_EXTENT_MERGED)
958	const_iv (FIEMAP_EXTENT_SHARED)	1197	const_iv (FIEMAP_EXTENT_SHARED)
959		1198
		1199	const_iv (SPLICE_F_MOVE)
		1200	const_iv (SPLICE_F_NONBLOCK)
		1201	const_iv (SPLICE_F_MORE)
		1202	const_iv (SPLICE_F_GIFT)
		1203
		1204	const_iv (EFD_CLOEXEC)
		1205	const_iv (EFD_NONBLOCK)
		1206	const_iv (EFD_SEMAPHORE)
		1207
		1208	const_iv (CLOCK_REALTIME)
		1209	const_iv (CLOCK_MONOTONIC)
		1210	const_iv (CLOCK_BOOTTIME)
		1211	const_iv (CLOCK_REALTIME_ALARM)
		1212	const_iv (CLOCK_BOOTTIME_ALARM)
		1213
		1214	const_iv (TFD_NONBLOCK)
		1215	const_iv (TFD_CLOEXEC)
		1216
		1217	const_iv (TFD_TIMER_ABSTIME)
		1218	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1219
		1220	/* these are libeio constants, and are independent of gendef0 */
960	const_eio (SEEK_SET)	1221	const_eio (SEEK_SET)
961	const_eio (SEEK_CUR)	1222	const_eio (SEEK_CUR)
962	const_eio (SEEK_END)	1223	const_eio (SEEK_END)
963		1224
964	const_eio (MCL_FUTURE)	1225	const_eio (MCL_FUTURE)
…		…
973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1234	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
974	const_eio (SYNC_FILE_RANGE_WRITE)	1235	const_eio (SYNC_FILE_RANGE_WRITE)
975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1236	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
976		1237
977	const_eio (FALLOC_FL_KEEP_SIZE)	1238	const_eio (FALLOC_FL_KEEP_SIZE)
		1239	const_eio (FALLOC_FL_PUNCH_HOLE)
		1240	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1241	const_eio (FALLOC_FL_ZERO_RANGE)
		1242	const_eio (FALLOC_FL_INSERT_RANGE)
		1243	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1244
		1245	const_eio (RENAME_NOREPLACE)
		1246	const_eio (RENAME_EXCHANGE)
		1247	const_eio (RENAME_WHITEOUT)
978		1248
979	const_eio (READDIR_DENTS)	1249	const_eio (READDIR_DENTS)
980	const_eio (READDIR_DIRS_FIRST)	1250	const_eio (READDIR_DIRS_FIRST)
981	const_eio (READDIR_STAT_ORDER)	1251	const_eio (READDIR_STAT_ORDER)
982	const_eio (READDIR_FOUND_UNKNOWN)	1252	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1050	PROTOTYPE: $	1320	PROTOTYPE: $
1051	CODE:	1321	CODE:
1052	max_outstanding = maxreqs;	1322	max_outstanding = maxreqs;
1053		1323
1054	void	1324	void
1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1325	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1056	PPCODE:	1326	PPCODE:
1057	{	1327	{
1058	dREQ;	1328	dREQ;
1059		1329
1060	req->type = EIO_WD_OPEN;	1330	req->type = EIO_WD_OPEN;
…		…
1062		1332
1063	REQ_SEND;	1333	REQ_SEND;
1064	}	1334	}
1065		1335
1066	void	1336	void
1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1337	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1068	PPCODE:	1338	PPCODE:
1069	{	1339	{
1070	dREQ;	1340	dREQ;
1071		1341
1072	req->type = EIO_OPEN;	1342	req->type = EIO_OPEN;
…		…
1076		1346
1077	REQ_SEND;	1347	REQ_SEND;
1078	}	1348	}
1079		1349
1080	void	1350	void
1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1351	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1082	ALIAS:	1352	ALIAS:
1083	aio_fsync = EIO_FSYNC	1353	aio_fsync = EIO_FSYNC
1084	aio_fdatasync = EIO_FDATASYNC	1354	aio_fdatasync = EIO_FDATASYNC
1085	aio_syncfs = EIO_SYNCFS	1355	aio_syncfs = EIO_SYNCFS
1086	PPCODE:	1356	PPCODE:
1087	{	1357	{
1088	int fd = s_fileno_croak (fh, 0);	1358	int fd = s_fileno_croak (fh, 0);
1089	dREQ;	1359	dREQ;
1090		1360
1091	req->type = ix;	1361	req->type = ix;
1092	req->sv1 = newSVsv (fh);	1362	req->sv1 = newSVsv (fh);
1093	req->int1 = fd;	1363	req->int1 = fd;
1094		1364
1095	REQ_SEND;	1365	REQ_SEND;
1096	}	1366	}
1097		1367
1098	void	1368	void
1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1369	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1100	PPCODE:	1370	PPCODE:
1101	{	1371	{
1102	int fd = s_fileno_croak (fh, 0);	1372	int fd = s_fileno_croak (fh, 0);
1103	dREQ;	1373	dREQ;
1104		1374
1105	req->type = EIO_SYNC_FILE_RANGE;	1375	req->type = EIO_SYNC_FILE_RANGE;
1106	req->sv1 = newSVsv (fh);	1376	req->sv1 = newSVsv (fh);
1107	req->int1 = fd;	1377	req->int1 = fd;
…		…
1111		1381
1112	REQ_SEND;	1382	REQ_SEND;
1113	}	1383	}
1114		1384
1115	void	1385	void
1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1386	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1117	PPCODE:	1387	PPCODE:
1118	{	1388	{
1119	int fd = s_fileno_croak (fh, 0);	1389	int fd = s_fileno_croak (fh, 0);
1120	dREQ;	1390	dREQ;
1121		1391
1122	req->type = EIO_FALLOCATE;	1392	req->type = EIO_FALLOCATE;
1123	req->sv1 = newSVsv (fh);	1393	req->sv1 = newSVsv (fh);
1124	req->int1 = fd;	1394	req->int1 = fd;
…		…
1128		1398
1129	REQ_SEND;	1399	REQ_SEND;
1130	}	1400	}
1131		1401
1132	void	1402	void
1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1403	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1134	PPCODE:	1404	PPCODE:
1135	{	1405	{
1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1406	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1137	int fd = s_fileno_croak (fh, 0);	1407	int fd = s_fileno_croak (fh, 0);
1138	dREQ;	1408	dREQ;
1139		1409
1140	if (expect_false (close_fd < 0))	1410	if (expect_false (close_fd < 0))
1141	{	1411	{
1142	int pipefd [2];	1412	int pipefd [2];
…		…
1162		1432
1163	REQ_SEND;	1433	REQ_SEND;
1164	}	1434	}
1165		1435
1166	void	1436	void
1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1437	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1168	PPCODE:	1438	PPCODE:
1169	{	1439	{
1170	int fd = s_fileno_croak (fh, 0);	1440	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1441	dREQ;
1172		1442
…		…
1178		1448
1179	REQ_SEND;	1449	REQ_SEND;
1180	}	1450	}
1181		1451
1182	void	1452	void
1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1453	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1184	ALIAS:	1454	ALIAS:
1185	aio_read = EIO_READ	1455	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1456	aio_write = EIO_WRITE
1187	PPCODE:	1457	PPCODE:
1188	{	1458	{
…		…
1204	len = svlen - dataoffset;	1474	len = svlen - dataoffset;
1205	}	1475	}
1206	else	1476	else
1207	{	1477	{
1208	/* read: check type and grow scalar as necessary */	1478	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1479	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1480	svptr = sv_grow (data, len + dataoffset + 1);
		1481	else if (SvCUR (data) < len + dataoffset)
		1482	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1483	}
1212		1484
1213	{	1485	{
1214	dREQ;	1486	dREQ;
1215		1487
…		…
1231	REQ_SEND;	1503	REQ_SEND;
1232	}	1504	}
1233	}	1505	}
1234		1506
1235	void	1507	void
		1508	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1509	ALIAS:
		1510	aio_ioctl = EIO_IOCTL
		1511	aio_fcntl = EIO_FCNTL
		1512	PPCODE:
		1513	{
		1514	int fd = s_fileno_croak (fh, 0);
		1515	char *svptr;
		1516
		1517	if (SvPOK (arg) || !SvNIOK (arg))
		1518	{
		1519	STRLEN svlen;
		1520	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1521	#ifdef IOCPARM_LEN
		1522	STRLEN need = IOCPARM_LEN (request);
		1523	#else
		1524	STRLEN need = 256;
		1525	#endif
		1526
		1527	if (svlen < need)
		1528	svptr = SvGROW (arg, need);
		1529	}
		1530	else
		1531	svptr = (char *)SvIV (arg);
		1532
		1533	{
		1534	dREQ;
		1535
		1536	req->type = ix;
		1537	req->sv1 = newSVsv (fh);
		1538	req->int1 = fd;
		1539	req->int2 = (long)request;
		1540	req->sv2 = SvREFCNT_inc (arg);
		1541	req->ptr2 = svptr;
		1542
		1543	REQ_SEND;
		1544	}
		1545	}
		1546
		1547	void
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1548	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1549	ALIAS:
1238	aio_readlink = EIO_READLINK	1550	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1551	aio_realpath = EIO_REALPATH
1240	PPCODE:	1552	PPCODE:
1241	{	1553	{
…		…
1246		1558
1247	REQ_SEND;	1559	REQ_SEND;
1248	}	1560	}
1249		1561
1250	void	1562	void
1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1563	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1252	PPCODE:	1564	PPCODE:
1253	{	1565	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1566	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1567	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1568	dREQ;
1257		1569
1258	req->type = EIO_SENDFILE;	1570	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1571	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1572	req->int1 = ofd;
…		…
1265		1577
1266	REQ_SEND;	1578	REQ_SEND;
1267	}	1579	}
1268		1580
1269	void	1581	void
1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1582	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1271	PPCODE:	1583	PPCODE:
1272	{	1584	{
1273	int fd = s_fileno_croak (fh, 0);	1585	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1586	dREQ;
1275		1587
1276	req->type = EIO_READAHEAD;	1588	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1589	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1590	req->int1 = fd;
…		…
1281		1593
1282	REQ_SEND;	1594	REQ_SEND;
1283	}	1595	}
1284		1596
1285	void	1597	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1598	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1599	ALIAS:
1288	aio_stat = EIO_STAT	1600	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1601	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1602	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1603	PPCODE:
…		…
1300	UV	1612	UV
1301	major (UV dev)	1613	major (UV dev)
1302	ALIAS:	1614	ALIAS:
1303	minor = 1	1615	minor = 1
1304	CODE:	1616	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1617	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1618	OUTPUT:
1307	RETVAL	1619	RETVAL
1308		1620
1309	UV	1621	UV
1310	makedev (UV maj, UV min)	1622	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1624	RETVAL = makedev (maj, min);
1313	OUTPUT:	1625	OUTPUT:
1314	RETVAL	1626	RETVAL
1315		1627
1316	void	1628	void
1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1629	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1318	PPCODE:	1630	PPCODE:
1319	{	1631	{
1320	dREQ;	1632	dREQ;
1321		1633
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1634	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1637
1326	REQ_SEND;	1638	REQ_SEND;
1327	}	1639	}
1328		1640
1329	void	1641	void
1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1642	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1331	PPCODE:	1643	PPCODE:
1332	{	1644	{
1333	dREQ;	1645	dREQ;
1334		1646
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1647	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1649
1338	REQ_SEND;	1650	REQ_SEND;
1339	}	1651	}
1340		1652
1341	void	1653	void
1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1654	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1343	PPCODE:	1655	PPCODE:
1344	{	1656	{
1345	dREQ;	1657	dREQ;
1346		1658
1347	req->int2 = mode;	1659	req->int2 = mode;
…		…
1349		1661
1350	REQ_SEND;	1662	REQ_SEND;
1351	}	1663	}
1352		1664
1353	void	1665	void
1354	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1666	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1355	PPCODE:	1667	PPCODE:
1356	{	1668	{
1357	dREQ;	1669	dREQ;
1358		1670
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1671	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1674
1363	REQ_SEND;	1675	REQ_SEND;
1364	}	1676	}
1365		1677
1366	void	1678	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1679	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1680	PPCODE:
1369	{	1681	{
1370	dREQ;	1682	dREQ;
1371		1683
1372	req->type = EIO_READDIR;	1684	req->type = EIO_READDIR;
…		…
1379		1691
1380	REQ_SEND;	1692	REQ_SEND;
1381	}	1693	}
1382		1694
1383	void	1695	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1696	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1697	PPCODE:
1386	{	1698	{
1387	dREQ;	1699	dREQ;
1388		1700
1389	req->type = EIO_MKDIR;	1701	req->type = EIO_MKDIR;
…		…
1392		1704
1393	REQ_SEND;	1705	REQ_SEND;
1394	}	1706	}
1395		1707
1396	void	1708	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1709	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1710	ALIAS:
1399	aio_unlink = EIO_UNLINK	1711	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1712	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1713	aio_readdir = EIO_READDIR
1402	PPCODE:	1714	PPCODE:
…		…
1408		1720
1409	REQ_SEND;	1721	REQ_SEND;
1410	}	1722	}
1411		1723
1412	void	1724	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1725	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1726	ALIAS:
1415	aio_link = EIO_LINK	1727	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1728	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1729	aio_rename = EIO_RENAME
1418	PPCODE:	1730	PPCODE:
…		…
1427		1739
1428	REQ_SEND;	1740	REQ_SEND;
1429	}	1741	}
1430		1742
1431	void	1743	void
		1744	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1745	PPCODE:
		1746	{
		1747	eio_wd wd2 = 0;
		1748	dREQ;
		1749
		1750	req->type = EIO_RENAME;
		1751	req_set_path1 (req, oldpath);
		1752	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1753	req->int2 = flags;
		1754	req->int3 = (long)wd2;
		1755
		1756	REQ_SEND;
		1757	}
		1758
		1759	void
1432	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1760	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1433	PPCODE:	1761	PPCODE:
1434	{	1762	{
1435	dREQ;	1763	dREQ;
1436		1764
1437	req->type = EIO_MKNOD;	1765	req->type = EIO_MKNOD;
…		…
1441		1769
1442	REQ_SEND;	1770	REQ_SEND;
1443	}	1771	}
1444		1772
1445	void	1773	void
1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1774	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1447	ALIAS:	1775	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1776	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1777	aio_msync = EIO_MSYNC
1450	PPCODE:	1778	PPCODE:
1451	{	1779	{
1452	STRLEN svlen;	1780	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1781	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1782	UV len = SvUV (length);
		1783
		1784	if (flags < 0)
		1785	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1786
1456	if (offset < 0)	1787	if (offset < 0)
1457	offset += svlen;	1788	offset += svlen;
1458		1789
1459	if (offset < 0 || offset > svlen)	1790	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1805	REQ_SEND;
1475	}	1806	}
1476	}	1807	}
1477		1808
1478	void	1809	void
1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1810	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1480	PPCODE:	1811	PPCODE:
1481	{	1812	{
1482	STRLEN svlen;	1813	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1814	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1815	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1834	REQ_SEND;
1504	}	1835	}
1505	}	1836	}
1506		1837
1507	void	1838	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1839	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1840	PPCODE:
1510	{	1841	{
1511	dREQ;	1842	dREQ;
1512		1843
1513	req->type = EIO_MLOCKALL;	1844	req->type = EIO_MLOCKALL;
…		…
1515		1846
1516	REQ_SEND;	1847	REQ_SEND;
1517	}	1848	}
1518		1849
1519	void	1850	void
1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1851	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1521	PPCODE:	1852	PPCODE:
1522	{	1853	{
1523	int fd = s_fileno_croak (fh, 0);	1854	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1855	dREQ;
1525		1856
1526	req->type = EIO_CUSTOM;	1857	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1858	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1859	req->int1 = fd;
…		…
1538		1869
1539	REQ_SEND;	1870	REQ_SEND;
1540	}	1871	}
1541		1872
1542	void	1873	void
		1874	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1875	PPCODE:
		1876	{
		1877	char *svptr = 0;
		1878
		1879	sv_clear_foreign (data);
		1880
		1881	if (length) /* known length, directly read into scalar */
		1882	{
		1883	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1884	svptr = sv_grow (data, length + 1);
		1885	else if (SvCUR (data) < length)
		1886	croak ("length outside of scalar, and cannot grow");
		1887	else
		1888	svptr = SvPVbyte_nolen (data);
		1889	}
		1890
		1891	{
		1892	dREQ;
		1893
		1894	req->type = EIO_SLURP;
		1895	req_set_path1 (req, pathname);
		1896	req->offs = offset;
		1897	req->size = length;
		1898	req->sv2 = SvREFCNT_inc (data);
		1899	req->ptr2 = svptr;
		1900
		1901	if (!SvREADONLY (data))
		1902	{
		1903	SvREADONLY_on (data);
		1904	req->flags |= FLAG_SV2_RO_OFF;
		1905	}
		1906
		1907	REQ_SEND;
		1908	}
		1909	}
		1910
		1911	void
1543	aio_busy (double delay, SV *callback=&PL_sv_undef)	1912	aio_busy (double delay, SV *callback = &PL_sv_undef)
1544	PPCODE:	1913	PPCODE:
1545	{	1914	{
1546	dREQ;	1915	dREQ;
1547		1916
1548	req->type = EIO_BUSY;	1917	req->type = EIO_BUSY;
…		…
1550		1919
1551	REQ_SEND;	1920	REQ_SEND;
1552	}	1921	}
1553		1922
1554	void	1923	void
1555	aio_group (SV *callback=&PL_sv_undef)	1924	aio_group (SV *callback = &PL_sv_undef)
1556	PPCODE:	1925	PPCODE:
1557	{	1926	{
1558	dREQ;	1927	dREQ;
1559		1928
1560	req->type = EIO_GROUP;	1929	req->type = EIO_GROUP;
1561		1930
		1931	PUTBACK;
1562	req_submit (req);	1932	req_submit (req);
		1933	SPAGAIN;
		1934
1563	XPUSHs (req_sv (req, aio_grp_stash));	1935	XPUSHs (req_sv (req, aio_grp_stash));
1564	}	1936	}
1565		1937
1566	void	1938	void
1567	aio_nop (SV *callback=&PL_sv_undef)	1939	aio_nop (SV *callback = &PL_sv_undef)
1568	ALIAS:	1940	ALIAS:
1569	aio_nop = EIO_NOP	1941	aio_nop = EIO_NOP
1570	aio_sync = EIO_SYNC	1942	aio_sync = EIO_SYNC
1571	PPCODE:	1943	PPCODE:
1572	{	1944	{
…		…
1576		1948
1577	REQ_SEND;	1949	REQ_SEND;
1578	}	1950	}
1579		1951
1580	int	1952	int
1581	aioreq_pri (int pri = 0)	1953	aioreq_pri (int pri = NO_INIT)
1582	CODE:	1954	CODE:
1583	RETVAL = next_pri;	1955	RETVAL = next_pri;
1584	if (items > 0)	1956	if (items > 0)
1585	{	1957	{
1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1958	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2048	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1677	OUTPUT:	2049	OUTPUT:
1678	RETVAL	2050	RETVAL
1679		2051
1680	void	2052	void
1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2053	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1682	PPCODE:	2054	PPCODE:
1683	sv_unmagic (scalar, MMAP_MAGIC);	2055	sv_clear_foreign (scalar);
1684	{	2056	{
1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2057	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2058	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1687	if (addr == (void *)-1)	2059	if (addr == (void *)-1)
1688	XSRETURN_NO;	2060	XSRETURN_NO;
1689		2061
1690	sv_force_normal (scalar);	2062	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1691
1692	/* we store the length in mg_obj, as namlen is I32 :/ */
1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1694	->mg_obj = (SV *)length;
1695
1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
1697		2063
1698	if (!(prot & PROT_WRITE))	2064	if (!(prot & PROT_WRITE))
1699	SvREADONLY_on (scalar);	2065	SvREADONLY_on (scalar);
1700		2066
1701	if (SvLEN (scalar))
1702	Safefree (SvPVX (scalar));
1703
1704	SvPVX (scalar) = (char *)addr;
1705	SvCUR_set (scalar, length);
1706	SvLEN_set (scalar, 0);
1707	SvPOK_only (scalar);
1708
1709	XSRETURN_YES;	2067	XSRETURN_YES;
1710	}	2068	}
1711		2069
1712	void	2070	void
1713	munmap (SV *scalar)	2071	munmap (SV *scalar)
1714	CODE:	2072	CODE:
1715	sv_unmagic (scalar, MMAP_MAGIC);	2073	sv_clear_foreign (scalar);
		2074
		2075	SV *
		2076	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2077	CODE:
		2078	{
		2079	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2080	void *new;
		2081
		2082	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2083	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2084
		2085	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2086
		2087	RETVAL = &PL_sv_no;
		2088
		2089	if (new != (void *)-1)
		2090	{
		2091	RETVAL = new == (void *)mg->mg_ptr
		2092	? newSVpvn ("0 but true", 10)
		2093	: &PL_sv_yes;
		2094
		2095	mg->mg_ptr = (char *)new;
		2096	mg->mg_obj = (SV *)new_length;
		2097
		2098	SvPVX (scalar) = mg->mg_ptr;
		2099	SvCUR_set (scalar, new_length);
		2100	}
		2101	}
		2102	OUTPUT:
		2103	RETVAL
1716		2104
1717	int	2105	int
1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2106	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1719	ALIAS:	2107	ALIAS:
1720	mprotect = 1	2108	mprotect = 1
1721	CODE:	2109	CODE:
1722	{	2110	{
1723	STRLEN svlen;	2111	STRLEN svlen;
1724	void *addr = SvPVbyte (scalar, svlen);	2112	void *addr = SvPVbyte (scalar, svlen);
1725	size_t len = SvUV (length);	2113	STRLEN len = SvUV (length);
1726		2114
1727	if (offset < 0)	2115	if (offset < 0)
1728	offset += svlen;	2116	offset += svlen;
1729		2117
1730	if (offset < 0 || offset > svlen)	2118	if (offset < 0 || offset > svlen)
…		…
1744	}	2132	}
1745	OUTPUT:	2133	OUTPUT:
1746	RETVAL	2134	RETVAL
1747		2135
1748	int	2136	int
1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2137	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1750	CODE:	2138	CODE:
1751	{	2139	{
1752	STRLEN svlen;	2140	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2141	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2142	size_t len = SvUV (length);
1755		2143
1756	if (offset < 0)	2144	if (offset < 0)
1757	offset += svlen;	2145	offset += svlen;
1758		2146
…		…
1765	addr = (void *)(((intptr_t)addr) + offset);	2153	addr = (void *)(((intptr_t)addr) + offset);
1766	eio_page_align (&addr, &len);	2154	eio_page_align (&addr, &len);
1767	#if _POSIX_MEMLOCK_RANGE	2155	#if _POSIX_MEMLOCK_RANGE
1768	RETVAL = munlock (addr, len);	2156	RETVAL = munlock (addr, len);
1769	#else	2157	#else
1770	RETVAL = ((errno = ENOSYS), -1);	2158	RETVAL = EIO_ENOSYS ();
1771	#endif	2159	#endif
1772	}	2160	}
1773	OUTPUT:	2161	OUTPUT:
1774	RETVAL	2162	RETVAL
1775		2163
…		…
1777	munlockall ()	2165	munlockall ()
1778	CODE:	2166	CODE:
1779	#if _POSIX_MEMLOCK	2167	#if _POSIX_MEMLOCK
1780	munlockall ();	2168	munlockall ();
1781	#else	2169	#else
1782	RETVAL = -1;	2170	RETVAL = EIO_ENOSYS ();
1783	errno = ENOSYS;
1784	#endif	2171	#endif
1785	OUTPUT:	2172	OUTPUT:
1786	RETVAL	2173	RETVAL
		2174
		2175	int
		2176	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2177	CODE:
		2178	{
		2179	#if HAVE_LINUX_SPLICE
		2180	loff_t off_in_, off_out_;
		2181	RETVAL = splice (
		2182	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2183	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2184	length, flags
		2185	);
		2186	#else
		2187	RETVAL = EIO_ENOSYS ();
		2188	#endif
		2189	}
		2190	OUTPUT:
		2191	RETVAL
		2192
		2193	int
		2194	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2195	CODE:
		2196	#if HAVE_LINUX_SPLICE
		2197	RETVAL = tee (rfh, wfh, length, flags);
		2198	#else
		2199	RETVAL = EIO_ENOSYS ();
		2200	#endif
		2201	OUTPUT:
		2202	RETVAL
		2203
		2204	int
		2205	pipesize (aio_rfd rfh, int new_size = -1)
		2206	PROTOTYPE: $;$
		2207	CODE:
		2208	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2209	if (new_size >= 0)
		2210	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2211	else
		2212	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2213	#else
		2214	errno = ENOSYS;
		2215	RETVAL = -1;
		2216	#endif
		2217	OUTPUT:
		2218	RETVAL
		2219
		2220	void
		2221	pipe2 (int flags = 0)
		2222	PROTOTYPE: ;$
		2223	PPCODE:
		2224	{
		2225	int fd[2];
		2226	int res;
		2227
		2228	if (flags)
		2229	#if HAVE_PIPE2
		2230	res = pipe2 (fd, flags);
		2231	#else
		2232	res = (errno = ENOSYS, -1);
		2233	#endif
		2234	else
		2235	res = pipe (fd);
		2236
		2237	if (!res)
		2238	{
		2239	EXTEND (SP, 2);
		2240	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2241	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2242	}
		2243	}
		2244
		2245	void
		2246	eventfd (unsigned int initval = 0, int flags = 0)
		2247	PPCODE:
		2248	{
		2249	int fd;
		2250	#if HAVE_EVENTFD
		2251	fd = eventfd (initval, flags);
		2252	#else
		2253	fd = (errno = ENOSYS, -1);
		2254	#endif
		2255
		2256	XPUSHs (newmortalFH (fd, O_RDWR));
		2257	}
		2258
		2259	void
		2260	timerfd_create (int clockid, int flags = 0)
		2261	PPCODE:
		2262	{
		2263	int fd;
		2264	#if HAVE_TIMERFD
		2265	fd = timerfd_create (clockid, flags);
		2266	#else
		2267	fd = (errno = ENOSYS, -1);
		2268	#endif
		2269
		2270	XPUSHs (newmortalFH (fd, O_RDWR));
		2271	}
		2272
		2273	void
		2274	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2275	PPCODE:
		2276	{
		2277	int fd = s_fileno_croak (fh, 0);
		2278	#if HAVE_TIMERFD
		2279	int res;
		2280	struct itimerspec its, ots;
		2281
		2282	ts_set (&its.it_interval, interval);
		2283	ts_set (&its.it_value , value);
		2284	res = timerfd_settime (fd, flags, &its, &ots);
		2285
		2286	if (!res)
		2287	{
		2288	EXTEND (SP, 2);
		2289	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2290	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2291	}
		2292	#else
		2293	errno = ENOSYS;
		2294	#endif
		2295	}
		2296
		2297	void
		2298	timerfd_gettime (SV *fh)
		2299	PPCODE:
		2300	{
		2301	int fd = s_fileno_croak (fh, 0);
		2302	#if HAVE_TIMERFD
		2303	int res;
		2304	struct itimerspec ots;
		2305	res = timerfd_gettime (fd, &ots);
		2306
		2307	if (!res)
		2308	{
		2309	EXTEND (SP, 2);
		2310	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2311	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2312	}
		2313	#else
		2314	errno = ENOSYS;
		2315	#endif
		2316	}
		2317
		2318	UV
		2319	get_fdlimit ()
		2320	CODE:
		2321	#if HAVE_RLIMITS
		2322	struct rlimit rl;
		2323	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2324	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2325	#endif
		2326	XSRETURN_UNDEF;
		2327	OUTPUT:
		2328	RETVAL
		2329
		2330	void
		2331	min_fdlimit (UV limit = 0x7fffffffU)
		2332	CODE:
		2333	{
		2334	#if HAVE_RLIMITS
		2335	struct rlimit rl;
		2336	rlim_t orig_rlim_max;
		2337	UV bit;
		2338
		2339	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2340	goto fail;
		2341
		2342	if (rl.rlim_cur == RLIM_INFINITY)
		2343	XSRETURN_YES;
		2344
		2345	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2346
		2347	if (rl.rlim_cur < limit)
		2348	{
		2349	rl.rlim_cur = limit;
		2350
		2351	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2352	rl.rlim_max = rl.rlim_cur;
		2353	}
		2354
		2355	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2356	XSRETURN_YES;
		2357
		2358	if (errno == EPERM)
		2359	{
		2360	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2361	/* our limit overflows a system-wide limit */
		2362	/* try an adaptive algorithm, but do not lower the hardlimit */
		2363	rl.rlim_max = 0;
		2364	for (bit = 0x40000000U; bit; bit >>= 1)
		2365	{
		2366	rl.rlim_max |= bit;
		2367	rl.rlim_cur = rl.rlim_max;
		2368
		2369	/* nevr decrease the hard limit */
		2370	if (rl.rlim_max < orig_rlim_max)
		2371	break;
		2372
		2373	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2374	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2375	}
		2376
		2377	/* now, raise the soft limit to the max permitted */
		2378	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2379	{
		2380	rl.rlim_cur = rl.rlim_max;
		2381	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2382	errno = EPERM;
		2383	}
		2384	}
		2385	#endif
		2386	fail:
		2387	XSRETURN_UNDEF;
		2388	}
1787		2389
1788	void _on_next_submit (SV *cb)	2390	void _on_next_submit (SV *cb)
1789	CODE:	2391	CODE:
1790	SvREFCNT_dec (on_next_submit);	2392	SvREFCNT_dec (on_next_submit);
1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2393	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1826	cancel (aio_req_ornot req)	2428	cancel (aio_req_ornot req)
1827	CODE:	2429	CODE:
1828	eio_cancel (req);	2430	eio_cancel (req);
1829		2431
1830	void	2432	void
1831	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2433	cb (aio_req_ornot req, SV *callback = NO_INIT)
1832	PPCODE:	2434	PPCODE:
1833	{	2435	{
1834	if (GIMME_V != G_VOID)	2436	if (GIMME_V != G_VOID)
1835	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2437	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1836		2438
1837	if (items > 1)	2439	if (items > 1)
1838	{	2440	{
1839	SV *cb_cv =get_cb (callback);	2441	SV *cb_cv = get_cb (callback);
1840		2442
1841	SvREFCNT_dec (req->callback);	2443	SvREFCNT_dec (req->callback);
1842	req->callback = SvREFCNT_inc (cb_cv);	2444	req->callback = SvREFCNT_inc (cb_cv);
1843	}	2445	}
1844	}	2446	}
…		…
1901	limit (aio_req grp, int limit)	2503	limit (aio_req grp, int limit)
1902	CODE:	2504	CODE:
1903	eio_grp_limit (grp, limit);	2505	eio_grp_limit (grp, limit);
1904		2506
1905	void	2507	void
1906	feed (aio_req grp, SV *callback=&PL_sv_undef)	2508	feed (aio_req grp, SV *callback = &PL_sv_undef)
1907	CODE:	2509	CODE:
1908	{	2510	{
1909	SvREFCNT_dec (grp->sv2);	2511	SvREFCNT_dec (grp->sv2);
1910	grp->sv2 = newSVsv (callback);	2512	grp->sv2 = newSVsv (callback);
1911	grp->feed = aio_grp_feed;	2513	grp->feed = aio_grp_feed;

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