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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.219 by root, Fri Jul 27 18:43:25 2012 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 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>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
		23	#if HAVE_SYS_SYSMACROS_H
		24	# include <sys/sysmacros.h>
		25	#endif
		26
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	27	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	28	# include <sys/mman.h>
22	#endif	29	#endif
23		30
24	#if __linux__	31	/* the incompetent fool that created musl keeps __linux__, refuses
		32	* to implement any linux standard apis, and also has no way to test
		33	* for his broken iplementation. don't complain to me if this fails
		34	* for you.
		35	*/
		36	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	37	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	38	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	39	# include <linux/types.h>
28	# include <linux/fiemap.h>	40	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	41	# define HAVE_FIEMAP 1
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	111	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	112	#define expect_true(expr) expect ((expr) != 0, 1)
101		113
102	/*****************************************************************************/	114	/*****************************************************************************/
103		115
		116	#include "config.h"
		117
		118	#if HAVE_ST_XTIMENSEC
		119	# define ATIMENSEC PL_statcache.st_atimensec
		120	# define MTIMENSEC PL_statcache.st_mtimensec
		121	# define CTIMENSEC PL_statcache.st_ctimensec
		122	#elif HAVE_ST_XTIMESPEC
		123	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		124	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		125	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		126	#else
		127	# define ATIMENSEC 0
		128	# define MTIMENSEC 0
		129	# define CTIMENSEC 0
		130	#endif
		131
		132	#include "schmorp.h"
		133
		134	#if HAVE_EVENTFD
		135	# include <sys/eventfd.h>
		136	#endif
		137
		138	#if HAVE_TIMERFD
		139	# include <sys/timerfd.h>
		140	#endif
		141
		142	#if HAVE_RLIMITS
		143	#include <sys/time.h>
		144	#include <sys/resource.h>
		145	#endif
		146
104	typedef SV SV8; /* byte-sv, used for argument-checking */	147	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	148	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	149	typedef int aio_wfd; /* write file descriptor */
107		150
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	151	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
114	STRLEN stroffset; \	157	STRLEN stroffset; \
115	SV *self;	158	SV *self;
116		159
117	#define EIO_NO_WRAPPERS 1	160	#define EIO_NO_WRAPPERS 1
118		161
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	162	#include "libeio/eio.h"
121		163
122	static int req_invoke (eio_req *req);	164	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	165	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	166	static void req_destroy (eio_req *grp);
…		…
140	# else	182	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	183	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	184	# endif
143	#endif	185	#endif
144		186
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	187	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	188	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	189	#endif
151	#ifndef major	190	#ifndef major
152	# define major(dev) ((dev) >> 8)	191	# define major(dev) ((dev) >> 8)
153	#endif	192	#endif
154	#ifndef minor	193	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	194	# define minor(dev) ((dev) & 0xff)
156	#endif	195	#endif
157		196
158	#ifndef PAGESIZE	197	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	198	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	199	#endif
		200
		201	/*****************************************************************************/
		202
		203	#if !_POSIX_MAPPED_FILES
		204	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		205	# define munmap(addr,length) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !_POSIX_MEMORY_PROTECTION
		209	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		210	#endif
		211
		212	#if !MREMAP_MAYMOVE
		213	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		214	#endif
		215
		216	#define FOREIGN_MAGIC PERL_MAGIC_ext
		217
		218	static int ecb_cold
		219	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		220	{
		221	int old_errno = errno;
		222	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		223	errno = old_errno;
		224
		225	mg->mg_obj = 0; /* just in case */
		226
		227	SvREADONLY_off (sv);
		228
		229	if (SvPVX (sv) != mg->mg_ptr)
		230	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		231
		232	SvCUR_set (sv, 0);
		233	SvPVX (sv) = 0;
		234	SvOK_off (sv);
		235
		236	return 0;
		237	}
		238
		239	static MGVTBL mmap_vtbl = {
		240	0, 0, 0, 0, mmap_free
		241	};
		242
		243	static int ecb_cold
		244	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		245	{
		246	free (mg->mg_ptr);
		247	mg->mg_obj = 0; /* just in case */
		248
		249	SvREADONLY_off (sv);
		250
		251	if (SvPVX (sv) != mg->mg_ptr)
		252	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		253
		254	SvCUR_set (sv, 0);
		255	SvPVX (sv) = 0;
		256	SvOK_off (sv);
		257
		258	return 0;
		259	}
		260
		261	static MGVTBL sysfree_vtbl = {
		262	0, 0, 0, 0, sysfree_free
		263	};
		264
		265	/*****************************************************************************/
		266
		267	/* helper: set scalar to foreign ptr with custom free */
		268	static void
		269	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		270	{
		271	sv_force_normal (sv);
		272
		273	/* we store the length in mg_obj, as namlen is I32 :/ */
		274	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		275	->mg_obj = (SV *)length;
		276
		277	SvUPGRADE (sv, SVt_PV); /* nop... */
		278
		279	if (SvLEN (sv))
		280	Safefree (SvPVX (sv));
		281
		282	SvPVX (sv) = (char *)addr;
		283	SvCUR_set (sv, length);
		284	SvLEN_set (sv, 0);
		285	SvPOK_only (sv);
		286	}
		287
		288	static void
		289	sv_clear_foreign (SV *sv)
		290	{
		291	/* todo: iterate over magic and only free ours, but of course */
		292	/* the perl5porters will call that (correct) behaviour buggy */
		293	sv_unmagic (sv, FOREIGN_MAGIC);
		294	}
		295
		296	/*****************************************************************************/
		297
		298	/* defines all sorts of constants to 0 unless they are already defined */
		299	/* also provides const_iv_ and const_niv_ macros for them */
		300	#include "def0.h"
161		301
162	/*****************************************************************************/	302	/*****************************************************************************/
163		303
164	static void	304	static void
165	fiemap (eio_req *req)	305	fiemap (eio_req *req)
166	{	306	{
167	req->result = -1;	307	req->result = -1;
168		308
169	#if HAVE_FIEMAP	309	#if HAVE_FIEMAP
		310	/* assume some c99 */
		311	struct fiemap *fiemap = 0;
		312	size_t end_offset;
170	int count = req->int3;	313	int count = req->int3;
171		314
172	/* heuristic: first try with 72 extents if we don't know how many, */	315	req->flags |= EIO_FLAG_PTR1_FREE;
173	/* as most files have (hopefully) fewer than this many extents */	316
174	/* in fact, most should have <= 2, so the 72 below is probably overkill */	317	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		318	/* increase in 3.5kb steps */
175	if (count < 0)	319	if (count < 0)
176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	320	count = 8;
		321
		322	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		323	errno = ENOMEM;
		324	if (!fiemap)
		325	return;
		326
		327	req->ptr1 = fiemap;
		328
		329	fiemap->fm_start = req->offs;
		330	fiemap->fm_length = req->size;
		331	fiemap->fm_flags = req->int2;
		332	fiemap->fm_extent_count = count;
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		335	return;
		336
		337	if (req->int3 >= 0 /* not autosizing */
		338	|| !fiemap->fm_mapped_extents /* no more extents */
		339	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		340	goto done;
		341
		342	/* else we have to loop -
		343	* it would be tempting (actually I tried that first) to just query the
		344	* number of extents needed, but linux often feels like not returning all
		345	* extents, without telling us it left any out. this complicates
		346	* this quite a bit.
		347	*/
		348
		349	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
177		350
178	for (;;)	351	for (;;)
179	{	352	{
		353	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		354	char scratch[3072];
		355	struct fiemap *incmap = (struct fiemap *)scratch;
		356
		357	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		358	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		359	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		360	incmap->fm_flags = fiemap->fm_flags;
		361	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		362
		363	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		364	return;
		365
		366	if (!incmap->fm_mapped_extents)
		367	goto done;
		368
		369	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	370	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181	errno = ENOMEM;	371	errno = ENOMEM;
182	if (!fiemap)	372	if (!fiemap)
183	return;	373	return;
184		374
185	req->ptr1 = fiemap;	375	req->ptr1 = fiemap;
186	req->flags |= EIO_FLAG_PTR1_FREE;
187		376
188	fiemap->fm_start = req->offs;	377	for (count = 0; count < incmap->fm_mapped_extents; ++count)
189	fiemap->fm_length = req->size;	378	{
190	fiemap->fm_flags = req->int2;	379	struct fiemap_extent *e = incmap->fm_extents + count;
191	fiemap->fm_extent_count = count;
192		380
193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	381	if (e->fe_logical + e->fe_length >= end_offset)
194	return;	382	goto done;
195		383
196	if (req->int3 >= 0)	384	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
197	break; /* when not autosizing we are done */
198		385
199	if (fiemap->fm_mapped_extents < count)	386	if (e->fe_flags & FIEMAP_EXTENT_LAST)
200	/* either autosizing succeeded,	387	goto done;
201	* or the file had no extents
202	* or we luckily had enough space */
203	break;
204		388
205	/* some kernels overwrite fm_length, so just reset everything */	389	}
206	fiemap->fm_start = req->offs;
207	fiemap->fm_length = req->size;
208	fiemap->fm_flags = req->int2;
209	fiemap->fm_extent_count = 0;
210
211	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212	return;
213
214	/* to work around a kernel bug, we allocate one more */
215	count = fiemap->fm_mapped_extents + 1;
216
217	free (fiemap);
218	}	390	}
219		391
		392	done:
220	req->result = 0;	393	req->result = 0;
221		394
222	#else	395	#else
223	errno = ENOSYS;	396	errno = ENOSYS;
224	#endif	397	#endif
…		…
271	}	444	}
272		445
273	static SV *	446	static SV *
274	newSVaio_wd (aio_wd wd)	447	newSVaio_wd (aio_wd wd)
275	{	448	{
276	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	449	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
277	}	450	}
278		451
279	static aio_req	452	static aio_req
280	SvAIO_REQ (SV *sv)	453	SvAIO_REQ (SV *sv)
281	{	454	{
…		…
300	|| SvTYPE (SvRV (sv)) != SVt_PVMG	473	|| SvTYPE (SvRV (sv)) != SVt_PVMG
301	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	474	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
302	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	475	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
303		476
304	return (aio_wd)(long)SvIVX (SvRV (sv));	477	return (aio_wd)(long)SvIVX (SvRV (sv));
		478	}
		479
		480	static SV *
		481	newmortalFH (int fd, int flags)
		482	{
		483	if (fd < 0)
		484	return &PL_sv_undef;
		485
		486	GV *gv = (GV *)sv_newmortal ();
		487	char sym[64];
		488	int symlen;
		489
		490	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		491	gv_init (gv, aio_stash, sym, symlen, 0);
		492
		493	symlen = snprintf (
		494	sym,
		495	sizeof (sym),
		496	"%s&=%d",
		497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		498	fd
		499	);
		500
		501	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		502	? (SV *)gv : &PL_sv_undef;
305	}	503	}
306		504
307	static void	505	static void
308	aio_grp_feed (aio_req grp)	506	aio_grp_feed (aio_req grp)
309	{	507	{
…		…
437	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	635	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
438	}	636	}
439	break;	637	break;
440		638
441	case EIO_OPEN:	639	case EIO_OPEN:
442	{	640	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
443	/* convert fd to fh */
444	SV *fh = &PL_sv_undef;
445
446	if (req->result >= 0)
447	{
448	GV *gv = (GV *)sv_newmortal ();
449	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
450	char sym [64];
451	int symlen;
452
453	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
454	gv_init (gv, aio_stash, sym, symlen, 0);
455
456	symlen = snprintf (
457	sym,
458	sizeof (sym),
459	"%s&=%d",
460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461	(int)req->result
462	);
463
464	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
465	fh = (SV *)gv;
466	}
467
468	PUSHs (fh);
469	}
470	break;	641	break;
471		642
472	case EIO_STATVFS:	643	case EIO_STATVFS:
473	case EIO_FSTATVFS:	644	case EIO_FSTATVFS:
474	{	645	{
…		…
477	#ifndef _WIN32	648	#ifndef _WIN32
478	if (req->result >= 0)	649	if (req->result >= 0)
479	{	650	{
480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	651	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
481	HV *hv = newHV ();	652	HV *hv = newHV ();
		653	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		654	* chooses to make it a struct.
		655	*/
		656	unsigned long fsid = 0;
		657	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
482		658
483	rv = sv_2mortal (newRV_noinc ((SV *)hv));	659	rv = sv_2mortal (newRV_noinc ((SV *)hv));
484		660
485	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	661	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
486	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	662	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
488	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	664	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
489	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	665	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
490	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	666	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
491	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	667	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
492	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	668	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
493	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	669	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
494	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	670	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
495	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	671	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
496	}	672	}
497	#endif	673	#endif
498		674
…		…
549	SvSETMAGIC (req->sv2);	725	SvSETMAGIC (req->sv2);
550	PUSHs (sv_result);	726	PUSHs (sv_result);
551	}	727	}
552	break;	728	break;
553		729
		730	case EIO_SLURP:
		731	{
		732	if (req->result >= 0)
		733	{
		734	/* if length was originally not known, we steal the malloc'ed memory */
		735	if (req->flags & EIO_FLAG_PTR2_FREE)
		736	{
		737	req->flags &= ~EIO_FLAG_PTR2_FREE;
		738	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		739	}
		740	else
		741	{
		742	SvCUR_set (req->sv2, req->result);
		743	*SvEND (req->sv2) = 0;
		744	SvPOK_only (req->sv2);
		745	}
		746
		747	SvSETMAGIC (req->sv2);
		748	}
		749
		750	PUSHs (sv_result);
		751	}
		752	break;
		753
554	case EIO_CUSTOM:	754	case EIO_CUSTOM:
555	if (req->feed == fiemap)	755	if (req->feed == fiemap)
556	{	756	{
557	#if HAVE_FIEMAP	757	#if HAVE_FIEMAP
558	if (!req->result)	758	if (!req->result)
…		…
663	{	863	{
664	while (eio_nreqs ())	864	while (eio_nreqs ())
665	{	865	{
666	int size;	866	int size;
667		867
668	X_LOCK (reslock);	868	X_LOCK (EIO_POOL->reslock);
669	size = res_queue.size;	869	size = EIO_POOL->res_queue.size;
670	X_UNLOCK (reslock);	870	X_UNLOCK (EIO_POOL->reslock);
671		871
672	if (size)	872	if (size)
673	return;	873	return;
674		874
675	etp_maybe_start_thread ();	875	etp_maybe_start_thread (EIO_POOL);
676		876
677	s_epipe_wait (&respipe);	877	s_epipe_wait (&respipe);
678	}	878	}
679	}	879	}
680		880
…		…
701	create_respipe ();	901	create_respipe ();
702		902
703	if (eio_init (want_poll, done_poll) < 0)	903	if (eio_init (want_poll, done_poll) < 0)
704	croak ("IO::AIO: unable to initialise eio library");	904	croak ("IO::AIO: unable to initialise eio library");
705	}	905	}
706
707	/*****************************************************************************/
708
709	#if !_POSIX_MAPPED_FILES
710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
711	# define munmap(addr,length) EIO_ENOSYS ()
712	#endif
713
714	#if !_POSIX_MEMORY_PROTECTION
715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
716	# define PROT_NONE 0
717	# define PROT_WRITE 0
718	# define MAP_PRIVATE 0
719	# define MAP_SHARED 0
720	# define MAP_FIXED 0
721	#endif
722
723	#define MMAP_MAGIC PERL_MAGIC_ext
724
725	static int ecb_cold
726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
727	{
728	int old_errno = errno;
729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
730	errno = old_errno;
731
732	mg->mg_obj = 0; /* just in case */
733
734	SvREADONLY_off (sv);
735
736	if (SvPVX (sv) != mg->mg_ptr)
737	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
738
739	SvCUR_set (sv, 0);
740	SvPVX (sv) = 0;
741	SvOK_off (sv);
742
743	return 0;
744	}
745
746	static MGVTBL mmap_vtbl = {
747	0, 0, 0, 0, mmap_free
748	};
749		906
750	/*****************************************************************************/	907	/*****************************************************************************/
751		908
752	static SV *	909	static SV *
753	get_cb (SV *cb_sv)	910	get_cb (SV *cb_sv)
…		…
849	req_set_path1 (req, fh_or_path);	1006	req_set_path1 (req, fh_or_path);
850	break;	1007	break;
851	}	1008	}
852	}	1009	}
853		1010
		1011	/*****************************************************************************/
		1012
		1013	static void
		1014	ts_set (struct timespec *ts, NV value)
		1015	{
		1016	ts->tv_sec = value;
		1017	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1018	}
		1019
		1020	static NV
		1021	ts_get (const struct timespec *ts)
		1022	{
		1023	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1024	}
		1025
		1026	/*****************************************************************************/
		1027
854	XS(boot_IO__AIO) ecb_cold;	1028	XS(boot_IO__AIO) ecb_cold;
855		1029
856	MODULE = IO::AIO PACKAGE = IO::AIO	1030	MODULE = IO::AIO PACKAGE = IO::AIO
857		1031
858	PROTOTYPES: ENABLE	1032	PROTOTYPES: ENABLE
…		…
865	} *civ, const_iv[] = {	1039	} *civ, const_iv[] = {
866	# define const_niv(name, value) { # name, (IV) value },	1040	# define const_niv(name, value) { # name, (IV) value },
867	# define const_iv(name) { # name, (IV) name },	1041	# define const_iv(name) { # name, (IV) name },
868	# define const_eio(name) { # name, (IV) EIO_ ## name },	1042	# define const_eio(name) { # name, (IV) EIO_ ## name },
869		1043
870	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1044	/* you have to re-run ./gendef0 after adding/removing any constants here */
871		1045	/* the first block can be undef if missing */
872	const_iv (ENOSYS)	1046	const_iv (ENOSYS)
873	const_iv (EXDEV)	1047	const_iv (EXDEV)
874	const_iv (EBADR)	1048	const_iv (EBADR)
		1049
		1050	/* for lseek */
		1051	const_iv (SEEK_DATA)
		1052	const_iv (SEEK_HOLE)
		1053
		1054	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1055	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1056	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1057	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1058	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1059	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1060
		1061	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1062	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1063	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1064	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1065	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1066
		1067	/* the second block will be 0 when missing */
		1068	const_iv (O_ACCMODE)
875		1069
876	const_iv (O_RDONLY)	1070	const_iv (O_RDONLY)
877	const_iv (O_WRONLY)	1071	const_iv (O_WRONLY)
878	const_iv (O_RDWR)	1072	const_iv (O_RDWR)
879	const_iv (O_CREAT)	1073	const_iv (O_CREAT)
…		…
893	const_iv (O_SEARCH)	1087	const_iv (O_SEARCH)
894	const_iv (O_DIRECTORY)	1088	const_iv (O_DIRECTORY)
895	const_iv (O_DSYNC)	1089	const_iv (O_DSYNC)
896	const_iv (O_RSYNC)	1090	const_iv (O_RSYNC)
897	const_iv (O_SYNC)	1091	const_iv (O_SYNC)
		1092	const_iv (O_PATH)
		1093	const_iv (O_TMPFILE)
898	const_iv (O_TTY_INIT)	1094	const_iv (O_TTY_INIT)
899		1095
900	const_iv (S_IFIFO)	1096	const_iv (S_IFIFO)
901	const_iv (S_IFCHR)	1097	const_iv (S_IFCHR)
902	const_iv (S_IFBLK)	1098	const_iv (S_IFBLK)
…		…
904	const_iv (S_IFREG)	1100	const_iv (S_IFREG)
905	const_iv (S_IFDIR)	1101	const_iv (S_IFDIR)
906	const_iv (S_IFWHT)	1102	const_iv (S_IFWHT)
907	const_iv (S_IFSOCK)	1103	const_iv (S_IFSOCK)
908	const_iv (S_IFMT)	1104	const_iv (S_IFMT)
909
910	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
911	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
912	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
913	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
914	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
915	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
916
917	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
918	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
919	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
920	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
921	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
922		1105
923	const_iv (ST_RDONLY)	1106	const_iv (ST_RDONLY)
924	const_iv (ST_NOSUID)	1107	const_iv (ST_NOSUID)
925	const_iv (ST_NODEV)	1108	const_iv (ST_NODEV)
926	const_iv (ST_NOEXEC)	1109	const_iv (ST_NOEXEC)
…		…
936	const_iv (PROT_NONE)	1119	const_iv (PROT_NONE)
937	const_iv (PROT_EXEC)	1120	const_iv (PROT_EXEC)
938	const_iv (PROT_READ)	1121	const_iv (PROT_READ)
939	const_iv (PROT_WRITE)	1122	const_iv (PROT_WRITE)
940		1123
941	/*const_iv (MAP_FIXED)*/
942	const_iv (MAP_PRIVATE)	1124	const_iv (MAP_PRIVATE)
943	const_iv (MAP_SHARED)	1125	const_iv (MAP_SHARED)
		1126	const_iv (MAP_FIXED)
944	const_iv (MAP_ANONYMOUS)	1127	const_iv (MAP_ANONYMOUS)
945		1128
946	/* linuxish */	1129	/* linuxish */
947	const_iv (MAP_HUGETLB)
948	const_iv (MAP_LOCKED)	1130	const_iv (MAP_LOCKED)
949	const_iv (MAP_NORESERVE)	1131	const_iv (MAP_NORESERVE)
950	const_iv (MAP_POPULATE)	1132	const_iv (MAP_POPULATE)
951	const_iv (MAP_NONBLOCK)	1133	const_iv (MAP_NONBLOCK)
		1134	const_iv (MAP_GROWSDOWN)
		1135	const_iv (MAP_32BIT)
		1136	const_iv (MAP_HUGETLB)
		1137	const_iv (MAP_STACK)
		1138
		1139	const_iv (MREMAP_MAYMOVE)
		1140	const_iv (MREMAP_FIXED)
		1141
		1142	const_iv (F_DUPFD_CLOEXEC)
		1143
		1144	const_iv (MSG_CMSG_CLOEXEC)
		1145	const_iv (SOCK_CLOEXEC)
		1146
		1147	const_iv (F_OFD_GETLK)
		1148	const_iv (F_OFD_SETLK)
		1149	const_iv (F_OFD_GETLKW)
		1150
		1151	const_iv (FIFREEZE)
		1152	const_iv (FITHAW)
		1153	const_iv (FITRIM)
		1154	const_iv (FICLONE)
		1155	const_iv (FICLONERANGE)
		1156	const_iv (FIDEDUPERANGE)
		1157
		1158	const_iv (FS_IOC_GETFLAGS)
		1159	const_iv (FS_IOC_SETFLAGS)
		1160	const_iv (FS_IOC_GETVERSION)
		1161	const_iv (FS_IOC_SETVERSION)
		1162	const_iv (FS_IOC_FIEMAP)
		1163	const_iv (FS_IOC_FSGETXATTR)
		1164	const_iv (FS_IOC_FSSETXATTR)
		1165	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1166	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1167	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1168
		1169	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1170
		1171	const_iv (FS_SECRM_FL)
		1172	const_iv (FS_UNRM_FL)
		1173	const_iv (FS_COMPR_FL)
		1174	const_iv (FS_SYNC_FL)
		1175	const_iv (FS_IMMUTABLE_FL)
		1176	const_iv (FS_APPEND_FL)
		1177	const_iv (FS_NODUMP_FL)
		1178	const_iv (FS_NOATIME_FL)
		1179	const_iv (FS_DIRTY_FL)
		1180	const_iv (FS_COMPRBLK_FL)
		1181	const_iv (FS_NOCOMP_FL)
		1182	const_iv (FS_ENCRYPT_FL)
		1183	const_iv (FS_BTREE_FL)
		1184	const_iv (FS_INDEX_FL)
		1185	const_iv (FS_JOURNAL_DATA_FL)
		1186	const_iv (FS_NOTAIL_FL)
		1187	const_iv (FS_DIRSYNC_FL)
		1188	const_iv (FS_TOPDIR_FL)
		1189	const_iv (FS_FL_USER_MODIFIABLE)
		1190
		1191	const_iv (FS_XFLAG_REALTIME)
		1192	const_iv (FS_XFLAG_PREALLOC)
		1193	const_iv (FS_XFLAG_IMMUTABLE)
		1194	const_iv (FS_XFLAG_APPEND)
		1195	const_iv (FS_XFLAG_SYNC)
		1196	const_iv (FS_XFLAG_NOATIME)
		1197	const_iv (FS_XFLAG_NODUMP)
		1198	const_iv (FS_XFLAG_RTINHERIT)
		1199	const_iv (FS_XFLAG_PROJINHERIT)
		1200	const_iv (FS_XFLAG_NOSYMLINKS)
		1201	const_iv (FS_XFLAG_EXTSIZE)
		1202	const_iv (FS_XFLAG_EXTSZINHERIT)
		1203	const_iv (FS_XFLAG_NODEFRAG)
		1204	const_iv (FS_XFLAG_FILESTREAM)
		1205	const_iv (FS_XFLAG_DAX)
		1206	const_iv (FS_XFLAG_HASATTR)
952		1207
953	const_iv (FIEMAP_FLAG_SYNC)	1208	const_iv (FIEMAP_FLAG_SYNC)
954	const_iv (FIEMAP_FLAG_XATTR)	1209	const_iv (FIEMAP_FLAG_XATTR)
955	const_iv (FIEMAP_FLAGS_COMPAT)	1210	const_iv (FIEMAP_FLAGS_COMPAT)
956	const_iv (FIEMAP_EXTENT_LAST)	1211	const_iv (FIEMAP_EXTENT_LAST)
…		…
968	const_iv (SPLICE_F_MOVE)	1223	const_iv (SPLICE_F_MOVE)
969	const_iv (SPLICE_F_NONBLOCK)	1224	const_iv (SPLICE_F_NONBLOCK)
970	const_iv (SPLICE_F_MORE)	1225	const_iv (SPLICE_F_MORE)
971	const_iv (SPLICE_F_GIFT)	1226	const_iv (SPLICE_F_GIFT)
972		1227
973	const_iv (SEEK_DATA)	1228	const_iv (EFD_CLOEXEC)
		1229	const_iv (EFD_NONBLOCK)
974	const_iv (SEEK_HOLE)	1230	const_iv (EFD_SEMAPHORE)
975		1231
976	/* libeio constants */	1232	const_iv (CLOCK_REALTIME)
		1233	const_iv (CLOCK_MONOTONIC)
		1234	const_iv (CLOCK_BOOTTIME)
		1235	const_iv (CLOCK_REALTIME_ALARM)
		1236	const_iv (CLOCK_BOOTTIME_ALARM)
		1237
		1238	const_iv (TFD_NONBLOCK)
		1239	const_iv (TFD_CLOEXEC)
		1240
		1241	const_iv (TFD_TIMER_ABSTIME)
		1242	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1243
		1244	/* these are libeio constants, and are independent of gendef0 */
977	const_eio (SEEK_SET)	1245	const_eio (SEEK_SET)
978	const_eio (SEEK_CUR)	1246	const_eio (SEEK_CUR)
979	const_eio (SEEK_END)	1247	const_eio (SEEK_END)
980		1248
981	const_eio (MCL_FUTURE)	1249	const_eio (MCL_FUTURE)
…		…
991	const_eio (SYNC_FILE_RANGE_WRITE)	1259	const_eio (SYNC_FILE_RANGE_WRITE)
992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1260	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
993		1261
994	const_eio (FALLOC_FL_KEEP_SIZE)	1262	const_eio (FALLOC_FL_KEEP_SIZE)
995	const_eio (FALLOC_FL_PUNCH_HOLE)	1263	const_eio (FALLOC_FL_PUNCH_HOLE)
		1264	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1265	const_eio (FALLOC_FL_ZERO_RANGE)
		1266	const_eio (FALLOC_FL_INSERT_RANGE)
		1267	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1268
		1269	const_eio (RENAME_NOREPLACE)
		1270	const_eio (RENAME_EXCHANGE)
		1271	const_eio (RENAME_WHITEOUT)
996		1272
997	const_eio (READDIR_DENTS)	1273	const_eio (READDIR_DENTS)
998	const_eio (READDIR_DIRS_FIRST)	1274	const_eio (READDIR_DIRS_FIRST)
999	const_eio (READDIR_STAT_ORDER)	1275	const_eio (READDIR_STAT_ORDER)
1000	const_eio (READDIR_FOUND_UNKNOWN)	1276	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1068	PROTOTYPE: $	1344	PROTOTYPE: $
1069	CODE:	1345	CODE:
1070	max_outstanding = maxreqs;	1346	max_outstanding = maxreqs;
1071		1347
1072	void	1348	void
1073	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1349	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1074	PPCODE:	1350	PPCODE:
1075	{	1351	{
1076	dREQ;	1352	dREQ;
1077		1353
1078	req->type = EIO_WD_OPEN;	1354	req->type = EIO_WD_OPEN;
…		…
1080		1356
1081	REQ_SEND;	1357	REQ_SEND;
1082	}	1358	}
1083		1359
1084	void	1360	void
1085	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1361	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1086	PPCODE:	1362	PPCODE:
1087	{	1363	{
1088	dREQ;	1364	dREQ;
1089		1365
1090	req->type = EIO_OPEN;	1366	req->type = EIO_OPEN;
…		…
1094		1370
1095	REQ_SEND;	1371	REQ_SEND;
1096	}	1372	}
1097		1373
1098	void	1374	void
1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1375	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1100	ALIAS:	1376	ALIAS:
1101	aio_fsync = EIO_FSYNC	1377	aio_fsync = EIO_FSYNC
1102	aio_fdatasync = EIO_FDATASYNC	1378	aio_fdatasync = EIO_FDATASYNC
1103	aio_syncfs = EIO_SYNCFS	1379	aio_syncfs = EIO_SYNCFS
1104	PPCODE:	1380	PPCODE:
1105	{	1381	{
1106	int fd = s_fileno_croak (fh, 0);	1382	int fd = s_fileno_croak (fh, 0);
1107	dREQ;	1383	dREQ;
1108		1384
1109	req->type = ix;	1385	req->type = ix;
1110	req->sv1 = newSVsv (fh);	1386	req->sv1 = newSVsv (fh);
1111	req->int1 = fd;	1387	req->int1 = fd;
1112		1388
1113	REQ_SEND;	1389	REQ_SEND;
1114	}	1390	}
1115		1391
1116	void	1392	void
1117	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1393	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1118	PPCODE:	1394	PPCODE:
1119	{	1395	{
1120	int fd = s_fileno_croak (fh, 0);	1396	int fd = s_fileno_croak (fh, 0);
1121	dREQ;	1397	dREQ;
1122		1398
1123	req->type = EIO_SYNC_FILE_RANGE;	1399	req->type = EIO_SYNC_FILE_RANGE;
1124	req->sv1 = newSVsv (fh);	1400	req->sv1 = newSVsv (fh);
1125	req->int1 = fd;	1401	req->int1 = fd;
…		…
1129		1405
1130	REQ_SEND;	1406	REQ_SEND;
1131	}	1407	}
1132		1408
1133	void	1409	void
1134	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1410	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1135	PPCODE:	1411	PPCODE:
1136	{	1412	{
1137	int fd = s_fileno_croak (fh, 0);	1413	int fd = s_fileno_croak (fh, 0);
1138	dREQ;	1414	dREQ;
1139		1415
1140	req->type = EIO_FALLOCATE;	1416	req->type = EIO_FALLOCATE;
1141	req->sv1 = newSVsv (fh);	1417	req->sv1 = newSVsv (fh);
1142	req->int1 = fd;	1418	req->int1 = fd;
…		…
1146		1422
1147	REQ_SEND;	1423	REQ_SEND;
1148	}	1424	}
1149		1425
1150	void	1426	void
1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1427	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1152	PPCODE:	1428	PPCODE:
1153	{	1429	{
1154	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1430	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1155	int fd = s_fileno_croak (fh, 0);	1431	int fd = s_fileno_croak (fh, 0);
1156	dREQ;	1432	dREQ;
1157		1433
1158	if (expect_false (close_fd < 0))	1434	if (expect_false (close_fd < 0))
1159	{	1435	{
1160	int pipefd [2];	1436	int pipefd [2];
…		…
1180		1456
1181	REQ_SEND;	1457	REQ_SEND;
1182	}	1458	}
1183		1459
1184	void	1460	void
1185	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1461	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1186	PPCODE:	1462	PPCODE:
1187	{	1463	{
1188	int fd = s_fileno_croak (fh, 0);	1464	int fd = s_fileno_croak (fh, 0);
1189	dREQ;	1465	dREQ;
1190		1466
…		…
1196		1472
1197	REQ_SEND;	1473	REQ_SEND;
1198	}	1474	}
1199		1475
1200	void	1476	void
1201	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1477	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1202	ALIAS:	1478	ALIAS:
1203	aio_read = EIO_READ	1479	aio_read = EIO_READ
1204	aio_write = EIO_WRITE	1480	aio_write = EIO_WRITE
1205	PPCODE:	1481	PPCODE:
1206	{	1482	{
…		…
1222	len = svlen - dataoffset;	1498	len = svlen - dataoffset;
1223	}	1499	}
1224	else	1500	else
1225	{	1501	{
1226	/* read: check type and grow scalar as necessary */	1502	/* read: check type and grow scalar as necessary */
1227	SvUPGRADE (data, SVt_PV);
1228	if (SvLEN (data) >= SvCUR (data))	1503	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1229	svptr = SvGROW (data, len + dataoffset + 1);	1504	svptr = sv_grow (data, len + dataoffset + 1);
1230	else if (SvCUR (data) < len + dataoffset)	1505	else if (SvCUR (data) < len + dataoffset)
1231	croak ("length + dataoffset outside of scalar, and cannot grow");	1506	croak ("length + dataoffset outside of scalar, and cannot grow");
1232	}	1507	}
1233		1508
1234	{	1509	{
…		…
1252	REQ_SEND;	1527	REQ_SEND;
1253	}	1528	}
1254	}	1529	}
1255		1530
1256	void	1531	void
		1532	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1533	ALIAS:
		1534	aio_ioctl = EIO_IOCTL
		1535	aio_fcntl = EIO_FCNTL
		1536	PPCODE:
		1537	{
		1538	int fd = s_fileno_croak (fh, 0);
		1539	char *svptr;
		1540
		1541	if (SvPOK (arg) || !SvNIOK (arg))
		1542	{
		1543	STRLEN svlen;
		1544	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1545	#ifdef IOCPARM_LEN
		1546	STRLEN need = IOCPARM_LEN (request);
		1547	#else
		1548	STRLEN need = 256;
		1549	#endif
		1550
		1551	if (svlen < need)
		1552	svptr = SvGROW (arg, need);
		1553	}
		1554	else
		1555	svptr = (char *)SvIV (arg);
		1556
		1557	{
		1558	dREQ;
		1559
		1560	req->type = ix;
		1561	req->sv1 = newSVsv (fh);
		1562	req->int1 = fd;
		1563	req->int2 = (long)request;
		1564	req->sv2 = SvREFCNT_inc (arg);
		1565	req->ptr2 = svptr;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1572	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1258	ALIAS:	1573	ALIAS:
1259	aio_readlink = EIO_READLINK	1574	aio_readlink = EIO_READLINK
1260	aio_realpath = EIO_REALPATH	1575	aio_realpath = EIO_REALPATH
1261	PPCODE:	1576	PPCODE:
1262	{	1577	{
…		…
1267		1582
1268	REQ_SEND;	1583	REQ_SEND;
1269	}	1584	}
1270		1585
1271	void	1586	void
1272	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1587	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1273	PPCODE:	1588	PPCODE:
1274	{	1589	{
1275	int ifd = s_fileno_croak (in_fh , 0);	1590	int ifd = s_fileno_croak (in_fh , 0);
1276	int ofd = s_fileno_croak (out_fh, 1);	1591	int ofd = s_fileno_croak (out_fh, 1);
1277	dREQ;	1592	dREQ;
1278		1593
1279	req->type = EIO_SENDFILE;	1594	req->type = EIO_SENDFILE;
1280	req->sv1 = newSVsv (out_fh);	1595	req->sv1 = newSVsv (out_fh);
1281	req->int1 = ofd;	1596	req->int1 = ofd;
…		…
1286		1601
1287	REQ_SEND;	1602	REQ_SEND;
1288	}	1603	}
1289		1604
1290	void	1605	void
1291	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1606	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1292	PPCODE:	1607	PPCODE:
1293	{	1608	{
1294	int fd = s_fileno_croak (fh, 0);	1609	int fd = s_fileno_croak (fh, 0);
1295	dREQ;	1610	dREQ;
1296		1611
1297	req->type = EIO_READAHEAD;	1612	req->type = EIO_READAHEAD;
1298	req->sv1 = newSVsv (fh);	1613	req->sv1 = newSVsv (fh);
1299	req->int1 = fd;	1614	req->int1 = fd;
…		…
1302		1617
1303	REQ_SEND;	1618	REQ_SEND;
1304	}	1619	}
1305		1620
1306	void	1621	void
1307	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1622	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1308	ALIAS:	1623	ALIAS:
1309	aio_stat = EIO_STAT	1624	aio_stat = EIO_STAT
1310	aio_lstat = EIO_LSTAT	1625	aio_lstat = EIO_LSTAT
1311	aio_statvfs = EIO_STATVFS	1626	aio_statvfs = EIO_STATVFS
1312	PPCODE:	1627	PPCODE:
…		…
1315		1630
1316	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1631	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1317		1632
1318	REQ_SEND;	1633	REQ_SEND;
1319	}	1634	}
		1635
		1636	void
		1637	st_xtime ()
		1638	ALIAS:
		1639	st_atime = 1
		1640	st_mtime = 2
		1641	st_ctime = 4
		1642	st_xtime = 7
		1643	PPCODE:
		1644	EXTEND (SP, 3);
		1645	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1646	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1647	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1648
		1649	void
		1650	st_xtimensec ()
		1651	ALIAS:
		1652	st_atimensec = 1
		1653	st_mtimensec = 2
		1654	st_ctimensec = 4
		1655	st_xtimensec = 7
		1656	PPCODE:
		1657	EXTEND (SP, 3);
		1658	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1659	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1660	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1320		1661
1321	UV	1662	UV
1322	major (UV dev)	1663	major (UV dev)
1323	ALIAS:	1664	ALIAS:
1324	minor = 1	1665	minor = 1
1325	CODE:	1666	CODE:
1326	RETVAL = ix ? major (dev) : minor (dev);	1667	RETVAL = ix ? minor (dev) : major (dev);
1327	OUTPUT:	1668	OUTPUT:
1328	RETVAL	1669	RETVAL
1329		1670
1330	UV	1671	UV
1331	makedev (UV maj, UV min)	1672	makedev (UV maj, UV min)
…		…
1333	RETVAL = makedev (maj, min);	1674	RETVAL = makedev (maj, min);
1334	OUTPUT:	1675	OUTPUT:
1335	RETVAL	1676	RETVAL
1336		1677
1337	void	1678	void
1338	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1679	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1339	PPCODE:	1680	PPCODE:
1340	{	1681	{
1341	dREQ;	1682	dREQ;
1342		1683
1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1684	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1346		1687
1347	REQ_SEND;	1688	REQ_SEND;
1348	}	1689	}
1349		1690
1350	void	1691	void
1351	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1692	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1352	PPCODE:	1693	PPCODE:
1353	{	1694	{
1354	dREQ;	1695	dREQ;
1355		1696
1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1697	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1358		1699
1359	REQ_SEND;	1700	REQ_SEND;
1360	}	1701	}
1361		1702
1362	void	1703	void
1363	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1704	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1364	PPCODE:	1705	PPCODE:
1365	{	1706	{
1366	dREQ;	1707	dREQ;
1367		1708
1368	req->int2 = mode;	1709	req->int2 = mode;
…		…
1370		1711
1371	REQ_SEND;	1712	REQ_SEND;
1372	}	1713	}
1373		1714
1374	void	1715	void
1375	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1716	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1376	PPCODE:	1717	PPCODE:
1377	{	1718	{
1378	dREQ;	1719	dREQ;
1379		1720
1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1721	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1383		1724
1384	REQ_SEND;	1725	REQ_SEND;
1385	}	1726	}
1386		1727
1387	void	1728	void
1388	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1729	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1389	PPCODE:	1730	PPCODE:
1390	{	1731	{
1391	dREQ;	1732	dREQ;
1392		1733
1393	req->type = EIO_READDIR;	1734	req->type = EIO_READDIR;
…		…
1400		1741
1401	REQ_SEND;	1742	REQ_SEND;
1402	}	1743	}
1403		1744
1404	void	1745	void
1405	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1746	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1406	PPCODE:	1747	PPCODE:
1407	{	1748	{
1408	dREQ;	1749	dREQ;
1409		1750
1410	req->type = EIO_MKDIR;	1751	req->type = EIO_MKDIR;
…		…
1413		1754
1414	REQ_SEND;	1755	REQ_SEND;
1415	}	1756	}
1416		1757
1417	void	1758	void
1418	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1759	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1419	ALIAS:	1760	ALIAS:
1420	aio_unlink = EIO_UNLINK	1761	aio_unlink = EIO_UNLINK
1421	aio_rmdir = EIO_RMDIR	1762	aio_rmdir = EIO_RMDIR
1422	aio_readdir = EIO_READDIR	1763	aio_readdir = EIO_READDIR
1423	PPCODE:	1764	PPCODE:
…		…
1429		1770
1430	REQ_SEND;	1771	REQ_SEND;
1431	}	1772	}
1432		1773
1433	void	1774	void
1434	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1775	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1435	ALIAS:	1776	ALIAS:
1436	aio_link = EIO_LINK	1777	aio_link = EIO_LINK
1437	aio_symlink = EIO_SYMLINK	1778	aio_symlink = EIO_SYMLINK
1438	aio_rename = EIO_RENAME	1779	aio_rename = EIO_RENAME
1439	PPCODE:	1780	PPCODE:
…		…
1448		1789
1449	REQ_SEND;	1790	REQ_SEND;
1450	}	1791	}
1451		1792
1452	void	1793	void
		1794	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1795	PPCODE:
		1796	{
		1797	eio_wd wd2 = 0;
		1798	dREQ;
		1799
		1800	req->type = EIO_RENAME;
		1801	req_set_path1 (req, oldpath);
		1802	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1803	req->int2 = flags;
		1804	req->int3 = (long)wd2;
		1805
		1806	REQ_SEND;
		1807	}
		1808
		1809	void
1453	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1810	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1454	PPCODE:	1811	PPCODE:
1455	{	1812	{
1456	dREQ;	1813	dREQ;
1457		1814
1458	req->type = EIO_MKNOD;	1815	req->type = EIO_MKNOD;
…		…
1462		1819
1463	REQ_SEND;	1820	REQ_SEND;
1464	}	1821	}
1465		1822
1466	void	1823	void
1467	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1824	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1468	ALIAS:	1825	ALIAS:
1469	aio_mtouch = EIO_MTOUCH	1826	aio_mtouch = EIO_MTOUCH
1470	aio_msync = EIO_MSYNC	1827	aio_msync = EIO_MSYNC
1471	PPCODE:	1828	PPCODE:
1472	{	1829	{
1473	STRLEN svlen;	1830	STRLEN svlen;
1474	char *svptr = SvPVbyte (data, svlen);	1831	char *svptr = SvPVbyte (data, svlen);
1475	UV len = SvUV (length);	1832	UV len = SvUV (length);
		1833
		1834	if (flags < 0)
		1835	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1476		1836
1477	if (offset < 0)	1837	if (offset < 0)
1478	offset += svlen;	1838	offset += svlen;
1479		1839
1480	if (offset < 0 || offset > svlen)	1840	if (offset < 0 || offset > svlen)
…		…
1495	REQ_SEND;	1855	REQ_SEND;
1496	}	1856	}
1497	}	1857	}
1498		1858
1499	void	1859	void
1500	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1860	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1501	PPCODE:	1861	PPCODE:
1502	{	1862	{
1503	STRLEN svlen;	1863	STRLEN svlen;
1504	char *svptr = SvPVbyte (data, svlen);	1864	char *svptr = SvPVbyte (data, svlen);
1505	UV len = SvUV (length);	1865	UV len = SvUV (length);
…		…
1524	REQ_SEND;	1884	REQ_SEND;
1525	}	1885	}
1526	}	1886	}
1527		1887
1528	void	1888	void
1529	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1889	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1530	PPCODE:	1890	PPCODE:
1531	{	1891	{
1532	dREQ;	1892	dREQ;
1533		1893
1534	req->type = EIO_MLOCKALL;	1894	req->type = EIO_MLOCKALL;
…		…
1536		1896
1537	REQ_SEND;	1897	REQ_SEND;
1538	}	1898	}
1539		1899
1540	void	1900	void
1541	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1901	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1542	PPCODE:	1902	PPCODE:
1543	{	1903	{
1544	int fd = s_fileno_croak (fh, 0);	1904	int fd = s_fileno_croak (fh, 0);
1545	dREQ;	1905	dREQ;
1546		1906
…		…
1559		1919
1560	REQ_SEND;	1920	REQ_SEND;
1561	}	1921	}
1562		1922
1563	void	1923	void
		1924	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1925	PPCODE:
		1926	{
		1927	char *svptr = 0;
		1928
		1929	sv_clear_foreign (data);
		1930
		1931	if (length) /* known length, directly read into scalar */
		1932	{
		1933	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1934	svptr = sv_grow (data, length + 1);
		1935	else if (SvCUR (data) < length)
		1936	croak ("length outside of scalar, and cannot grow");
		1937	else
		1938	svptr = SvPVbyte_nolen (data);
		1939	}
		1940
		1941	{
		1942	dREQ;
		1943
		1944	req->type = EIO_SLURP;
		1945	req_set_path1 (req, pathname);
		1946	req->offs = offset;
		1947	req->size = length;
		1948	req->sv2 = SvREFCNT_inc (data);
		1949	req->ptr2 = svptr;
		1950
		1951	if (!SvREADONLY (data))
		1952	{
		1953	SvREADONLY_on (data);
		1954	req->flags |= FLAG_SV2_RO_OFF;
		1955	}
		1956
		1957	REQ_SEND;
		1958	}
		1959	}
		1960
		1961	void
1564	aio_busy (double delay, SV *callback=&PL_sv_undef)	1962	aio_busy (double delay, SV *callback = &PL_sv_undef)
1565	PPCODE:	1963	PPCODE:
1566	{	1964	{
1567	dREQ;	1965	dREQ;
1568		1966
1569	req->type = EIO_BUSY;	1967	req->type = EIO_BUSY;
…		…
1571		1969
1572	REQ_SEND;	1970	REQ_SEND;
1573	}	1971	}
1574		1972
1575	void	1973	void
1576	aio_group (SV *callback=&PL_sv_undef)	1974	aio_group (SV *callback = &PL_sv_undef)
1577	PPCODE:	1975	PPCODE:
1578	{	1976	{
1579	dREQ;	1977	dREQ;
1580		1978
1581	req->type = EIO_GROUP;	1979	req->type = EIO_GROUP;
1582		1980
		1981	PUTBACK;
1583	req_submit (req);	1982	req_submit (req);
		1983	SPAGAIN;
		1984
1584	XPUSHs (req_sv (req, aio_grp_stash));	1985	XPUSHs (req_sv (req, aio_grp_stash));
1585	}	1986	}
1586		1987
1587	void	1988	void
1588	aio_nop (SV *callback=&PL_sv_undef)	1989	aio_nop (SV *callback = &PL_sv_undef)
1589	ALIAS:	1990	ALIAS:
1590	aio_nop = EIO_NOP	1991	aio_nop = EIO_NOP
1591	aio_sync = EIO_SYNC	1992	aio_sync = EIO_SYNC
1592	PPCODE:	1993	PPCODE:
1593	{	1994	{
…		…
1597		1998
1598	REQ_SEND;	1999	REQ_SEND;
1599	}	2000	}
1600		2001
1601	int	2002	int
1602	aioreq_pri (int pri = 0)	2003	aioreq_pri (int pri = NO_INIT)
1603	CODE:	2004	CODE:
1604	RETVAL = next_pri;	2005	RETVAL = next_pri;
1605	if (items > 0)	2006	if (items > 0)
1606	{	2007	{
1607	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2008	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2098	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1698	OUTPUT:	2099	OUTPUT:
1699	RETVAL	2100	RETVAL
1700		2101
1701	void	2102	void
1702	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2103	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1703	PPCODE:	2104	PPCODE:
1704	sv_unmagic (scalar, MMAP_MAGIC);	2105	sv_clear_foreign (scalar);
1705	{	2106	{
1706	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2107	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2108	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1708	if (addr == (void *)-1)	2109	if (addr == (void *)-1)
1709	XSRETURN_NO;	2110	XSRETURN_NO;
1710		2111
1711	sv_force_normal (scalar);	2112	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1712
1713	/* we store the length in mg_obj, as namlen is I32 :/ */
1714	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1715	->mg_obj = (SV *)length;
1716
1717	SvUPGRADE (scalar, SVt_PV); /* nop... */
1718		2113
1719	if (!(prot & PROT_WRITE))	2114	if (!(prot & PROT_WRITE))
1720	SvREADONLY_on (scalar);	2115	SvREADONLY_on (scalar);
1721		2116
1722	if (SvLEN (scalar))
1723	Safefree (SvPVX (scalar));
1724
1725	SvPVX (scalar) = (char *)addr;
1726	SvCUR_set (scalar, length);
1727	SvLEN_set (scalar, 0);
1728	SvPOK_only (scalar);
1729
1730	XSRETURN_YES;	2117	XSRETURN_YES;
1731	}	2118	}
1732		2119
1733	void	2120	void
1734	munmap (SV *scalar)	2121	munmap (SV *scalar)
1735	CODE:	2122	CODE:
1736	sv_unmagic (scalar, MMAP_MAGIC);	2123	sv_clear_foreign (scalar);
		2124
		2125	SV *
		2126	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2127	CODE:
		2128	{
		2129	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2130	void *new;
		2131
		2132	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2133	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2134
		2135	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2136
		2137	RETVAL = &PL_sv_no;
		2138
		2139	if (new != (void *)-1)
		2140	{
		2141	RETVAL = new == (void *)mg->mg_ptr
		2142	? newSVpvn ("0 but true", 10)
		2143	: &PL_sv_yes;
		2144
		2145	mg->mg_ptr = (char *)new;
		2146	mg->mg_obj = (SV *)new_length;
		2147
		2148	SvPVX (scalar) = mg->mg_ptr;
		2149	SvCUR_set (scalar, new_length);
		2150	}
		2151	}
		2152	OUTPUT:
		2153	RETVAL
1737		2154
1738	int	2155	int
1739	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2156	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1740	ALIAS:	2157	ALIAS:
1741	mprotect = 1	2158	mprotect = 1
1742	CODE:	2159	CODE:
1743	{	2160	{
1744	STRLEN svlen;	2161	STRLEN svlen;
1745	void *addr = SvPVbyte (scalar, svlen);	2162	void *addr = SvPVbyte (scalar, svlen);
1746	size_t len = SvUV (length);	2163	STRLEN len = SvUV (length);
1747		2164
1748	if (offset < 0)	2165	if (offset < 0)
1749	offset += svlen;	2166	offset += svlen;
1750		2167
1751	if (offset < 0 || offset > svlen)	2168	if (offset < 0 || offset > svlen)
…		…
1765	}	2182	}
1766	OUTPUT:	2183	OUTPUT:
1767	RETVAL	2184	RETVAL
1768		2185
1769	int	2186	int
1770	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2187	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1771	CODE:	2188	CODE:
1772	{	2189	{
1773	STRLEN svlen;	2190	STRLEN svlen;
1774	void *addr = SvPVbyte (scalar, svlen);	2191	void *addr = SvPVbyte (scalar, svlen);
1775	size_t len = SvUV (length);	2192	size_t len = SvUV (length);
1776		2193
1777	if (offset < 0)	2194	if (offset < 0)
1778	offset += svlen;	2195	offset += svlen;
1779		2196
…		…
1831	#else	2248	#else
1832	RETVAL = EIO_ENOSYS ();	2249	RETVAL = EIO_ENOSYS ();
1833	#endif	2250	#endif
1834	OUTPUT:	2251	OUTPUT:
1835	RETVAL	2252	RETVAL
		2253
		2254	int
		2255	pipesize (aio_rfd rfh, int new_size = -1)
		2256	PROTOTYPE: $;$
		2257	CODE:
		2258	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2259	if (new_size >= 0)
		2260	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2261	else
		2262	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2263	#else
		2264	errno = ENOSYS;
		2265	RETVAL = -1;
		2266	#endif
		2267	OUTPUT:
		2268	RETVAL
		2269
		2270	void
		2271	pipe2 (int flags = 0)
		2272	PROTOTYPE: ;$
		2273	PPCODE:
		2274	{
		2275	int fd[2];
		2276	int res;
		2277
		2278	if (flags)
		2279	#if HAVE_PIPE2
		2280	res = pipe2 (fd, flags);
		2281	#else
		2282	res = (errno = ENOSYS, -1);
		2283	#endif
		2284	else
		2285	res = pipe (fd);
		2286
		2287	if (!res)
		2288	{
		2289	EXTEND (SP, 2);
		2290	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2291	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2292	}
		2293	}
		2294
		2295	void
		2296	eventfd (unsigned int initval = 0, int flags = 0)
		2297	PPCODE:
		2298	{
		2299	int fd;
		2300	#if HAVE_EVENTFD
		2301	fd = eventfd (initval, flags);
		2302	#else
		2303	fd = (errno = ENOSYS, -1);
		2304	#endif
		2305
		2306	XPUSHs (newmortalFH (fd, O_RDWR));
		2307	}
		2308
		2309	void
		2310	timerfd_create (int clockid, int flags = 0)
		2311	PPCODE:
		2312	{
		2313	int fd;
		2314	#if HAVE_TIMERFD
		2315	fd = timerfd_create (clockid, flags);
		2316	#else
		2317	fd = (errno = ENOSYS, -1);
		2318	#endif
		2319
		2320	XPUSHs (newmortalFH (fd, O_RDWR));
		2321	}
		2322
		2323	void
		2324	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2325	PPCODE:
		2326	{
		2327	int fd = s_fileno_croak (fh, 0);
		2328	#if HAVE_TIMERFD
		2329	int res;
		2330	struct itimerspec its, ots;
		2331
		2332	ts_set (&its.it_interval, interval);
		2333	ts_set (&its.it_value , value);
		2334	res = timerfd_settime (fd, flags, &its, &ots);
		2335
		2336	if (!res)
		2337	{
		2338	EXTEND (SP, 2);
		2339	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2340	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2341	}
		2342	#else
		2343	errno = ENOSYS;
		2344	#endif
		2345	}
		2346
		2347	void
		2348	timerfd_gettime (SV *fh)
		2349	PPCODE:
		2350	{
		2351	int fd = s_fileno_croak (fh, 0);
		2352	#if HAVE_TIMERFD
		2353	int res;
		2354	struct itimerspec ots;
		2355	res = timerfd_gettime (fd, &ots);
		2356
		2357	if (!res)
		2358	{
		2359	EXTEND (SP, 2);
		2360	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2361	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2362	}
		2363	#else
		2364	errno = ENOSYS;
		2365	#endif
		2366	}
		2367
		2368	UV
		2369	get_fdlimit ()
		2370	CODE:
		2371	#if HAVE_RLIMITS
		2372	struct rlimit rl;
		2373	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2374	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2375	#endif
		2376	XSRETURN_UNDEF;
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	void
		2381	min_fdlimit (UV limit = 0x7fffffffU)
		2382	CODE:
		2383	{
		2384	#if HAVE_RLIMITS
		2385	struct rlimit rl;
		2386	rlim_t orig_rlim_max;
		2387	UV bit;
		2388
		2389	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2390	goto fail;
		2391
		2392	if (rl.rlim_cur == RLIM_INFINITY)
		2393	XSRETURN_YES;
		2394
		2395	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2396
		2397	if (rl.rlim_cur < limit)
		2398	{
		2399	rl.rlim_cur = limit;
		2400
		2401	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2402	rl.rlim_max = rl.rlim_cur;
		2403	}
		2404
		2405	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2406	XSRETURN_YES;
		2407
		2408	if (errno == EPERM)
		2409	{
		2410	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2411	/* our limit overflows a system-wide limit */
		2412	/* try an adaptive algorithm, but do not lower the hardlimit */
		2413	rl.rlim_max = 0;
		2414	for (bit = 0x40000000U; bit; bit >>= 1)
		2415	{
		2416	rl.rlim_max |= bit;
		2417	rl.rlim_cur = rl.rlim_max;
		2418
		2419	/* nevr decrease the hard limit */
		2420	if (rl.rlim_max < orig_rlim_max)
		2421	break;
		2422
		2423	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2424	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2425	}
		2426
		2427	/* now, raise the soft limit to the max permitted */
		2428	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2429	{
		2430	rl.rlim_cur = rl.rlim_max;
		2431	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2432	errno = EPERM;
		2433	}
		2434	}
		2435	#endif
		2436	fail:
		2437	XSRETURN_UNDEF;
		2438	}
1836		2439
1837	void _on_next_submit (SV *cb)	2440	void _on_next_submit (SV *cb)
1838	CODE:	2441	CODE:
1839	SvREFCNT_dec (on_next_submit);	2442	SvREFCNT_dec (on_next_submit);
1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2443	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1875	cancel (aio_req_ornot req)	2478	cancel (aio_req_ornot req)
1876	CODE:	2479	CODE:
1877	eio_cancel (req);	2480	eio_cancel (req);
1878		2481
1879	void	2482	void
1880	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2483	cb (aio_req_ornot req, SV *callback = NO_INIT)
1881	PPCODE:	2484	PPCODE:
1882	{	2485	{
1883	if (GIMME_V != G_VOID)	2486	if (GIMME_V != G_VOID)
1884	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2487	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1885		2488
1886	if (items > 1)	2489	if (items > 1)
1887	{	2490	{
1888	SV *cb_cv =get_cb (callback);	2491	SV *cb_cv = get_cb (callback);
1889		2492
1890	SvREFCNT_dec (req->callback);	2493	SvREFCNT_dec (req->callback);
1891	req->callback = SvREFCNT_inc (cb_cv);	2494	req->callback = SvREFCNT_inc (cb_cv);
1892	}	2495	}
1893	}	2496	}
…		…
1950	limit (aio_req grp, int limit)	2553	limit (aio_req grp, int limit)
1951	CODE:	2554	CODE:
1952	eio_grp_limit (grp, limit);	2555	eio_grp_limit (grp, limit);
1953		2556
1954	void	2557	void
1955	feed (aio_req grp, SV *callback=&PL_sv_undef)	2558	feed (aio_req grp, SV *callback = &PL_sv_undef)
1956	CODE:	2559	CODE:
1957	{	2560	{
1958	SvREFCNT_dec (grp->sv2);	2561	SvREFCNT_dec (grp->sv2);
1959	grp->sv2 = newSVsv (callback);	2562	grp->sv2 = newSVsv (callback);
1960	grp->feed = aio_grp_feed;	2563	grp->feed = aio_grp_feed;

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