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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.227 by root, Sat Sep 7 23:18:23 2013 UTC vs.
Revision 1.271 by root, Fri Dec 28 12:43:00 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	24	/* the incompetent fool that created musl keeps __linux__, refuses
21	# include <sys/mman.h>	25	* to implement any linux standard apis, and also has no way to test
22	#endif	26	* for his broken iplementation. don't complain to me if this fails
23		27	* for you.
24	#if __linux__	28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	30	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	32	# include <linux/types.h>
28	# include <linux/fiemap.h>	33	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	34	# define HAVE_FIEMAP 1
…		…
70	#undef fchmod	75	#undef fchmod
71	#undef dup	76	#undef dup
72	#undef dup2	77	#undef dup2
73	#undef abort	78	#undef abort
74	#undef pipe	79	#undef pipe
		80	#undef utime
75		81
76	#define EIO_STRUCT_STAT struct _stati64	82	#define EIO_STRUCT_STAT struct _stati64
77	#define EIO_STRUCT_STATI64	83	#define EIO_STRUCT_STATI64
78		84
79	#else	85	#else
…		…
98		104
99	#define expect_false(expr) expect ((expr) != 0, 0)	105	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	106	#define expect_true(expr) expect ((expr) != 0, 1)
101		107
102	/*****************************************************************************/	108	/*****************************************************************************/
		109
		110	#include "config.h"
		111
		112	#if HAVE_SYS_MKDEV_H
		113	# include <sys/mkdev.h>
		114	#elif HAVE_SYS_SYSMACROS_H
		115	# include <sys/sysmacros.h>
		116	#endif
		117
		118	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		119	# include <sys/mman.h>
		120	#endif
		121
		122	#if HAVE_ST_XTIMENSEC
		123	# define ATIMENSEC PL_statcache.st_atimensec
		124	# define MTIMENSEC PL_statcache.st_mtimensec
		125	# define CTIMENSEC PL_statcache.st_ctimensec
		126	#elif HAVE_ST_XTIMESPEC
		127	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		128	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		129	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		130	#else
		131	# define ATIMENSEC 0
		132	# define MTIMENSEC 0
		133	# define CTIMENSEC 0
		134	#endif
		135
		136	#if HAVE_ST_BIRTHTIMENSEC
		137	# define BTIMESEC PL_statcache.st_birthtime
		138	# define BTIMENSEC PL_statcache.st_birthtimensec
		139	#elif HAVE_ST_BIRTHTIMESPEC
		140	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		141	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		142	#else
		143	# define BTIMESEC 0
		144	# define BTIMENSEC 0
		145	#endif
		146
		147	#if HAVE_ST_GEN
		148	# define ST_GEN PL_statcache.st_gen
		149	#else
		150	# define ST_GEN 0
		151	#endif
		152
		153	#include "schmorp.h"
		154
		155	#if HAVE_EVENTFD
		156	# include <sys/eventfd.h>
		157	#endif
		158
		159	#if HAVE_TIMERFD
		160	# include <sys/timerfd.h>
		161	#endif
		162
		163	#if HAVE_RLIMITS
		164	#include <sys/time.h>
		165	#include <sys/resource.h>
		166	#endif
103		167
104	typedef SV SV8; /* byte-sv, used for argument-checking */	168	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	169	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	170	typedef int aio_wfd; /* write file descriptor */
107		171
…		…
114	STRLEN stroffset; \	178	STRLEN stroffset; \
115	SV *self;	179	SV *self;
116		180
117	#define EIO_NO_WRAPPERS 1	181	#define EIO_NO_WRAPPERS 1
118		182
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	183	#include "libeio/eio.h"
121		184
122	static int req_invoke (eio_req *req);	185	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	186	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	187	static void req_destroy (eio_req *grp);
…		…
140	# else	203	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	205	# endif
143	#endif	206	#endif
144		207
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	208	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	209	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	210	#endif
151	#ifndef major	211	#ifndef major
152	# define major(dev) ((dev) >> 8)	212	# define major(dev) ((dev) >> 8)
153	#endif	213	#endif
154	#ifndef minor	214	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	215	# define minor(dev) ((dev) & 0xff)
156	#endif	216	#endif
157		217
		218	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		219	#ifdef __sun
		220	# undef PAGESIZE
		221	#endif
		222
158	#if PAGESIZE <= 0	223	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	224	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	225	#endif
		226
		227	/*****************************************************************************/
		228
		229	#if !_POSIX_MAPPED_FILES
		230	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		231	# define munmap(addr,length) EIO_ENOSYS ()
		232	#endif
		233
		234	#if !_POSIX_MEMORY_PROTECTION
		235	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !MREMAP_MAYMOVE
		239	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		240	#endif
		241
		242	#define FOREIGN_MAGIC PERL_MAGIC_ext
		243
		244	static int ecb_cold
		245	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		246	{
		247	int old_errno = errno;
		248	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		249	errno = old_errno;
		250
		251	mg->mg_obj = 0; /* just in case */
		252
		253	SvREADONLY_off (sv);
		254
		255	if (SvPVX (sv) != mg->mg_ptr)
		256	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		257
		258	SvCUR_set (sv, 0);
		259	SvPVX (sv) = 0;
		260	SvOK_off (sv);
		261
		262	return 0;
		263	}
		264
		265	static MGVTBL mmap_vtbl = {
		266	0, 0, 0, 0, mmap_free
		267	};
		268
		269	static int ecb_cold
		270	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		271	{
		272	free (mg->mg_ptr);
		273	mg->mg_obj = 0; /* just in case */
		274
		275	SvREADONLY_off (sv);
		276
		277	if (SvPVX (sv) != mg->mg_ptr)
		278	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		279
		280	SvCUR_set (sv, 0);
		281	SvPVX (sv) = 0;
		282	SvOK_off (sv);
		283
		284	return 0;
		285	}
		286
		287	static MGVTBL sysfree_vtbl = {
		288	0, 0, 0, 0, sysfree_free
		289	};
		290
		291	/*****************************************************************************/
		292
		293	/* helper: set scalar to foreign ptr with custom free */
		294	static void
		295	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		296	{
		297	sv_force_normal (sv);
		298
		299	/* we store the length in mg_obj, as namlen is I32 :/ */
		300	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		301	->mg_obj = (SV *)length;
		302
		303	SvUPGRADE (sv, SVt_PV); /* nop... */
		304
		305	if (SvLEN (sv))
		306	Safefree (SvPVX (sv));
		307
		308	SvPVX (sv) = (char *)addr;
		309	SvCUR_set (sv, length);
		310	SvLEN_set (sv, 0);
		311	SvPOK_only (sv);
		312	}
		313
		314	static void
		315	sv_clear_foreign (SV *sv)
		316	{
		317	/* todo: iterate over magic and only free ours, but of course */
		318	/* the perl5porters will call that (correct) behaviour buggy */
		319	sv_unmagic (sv, FOREIGN_MAGIC);
		320	}
		321
		322	/*****************************************************************************/
		323
		324	/* defines all sorts of constants to 0 unless they are already defined */
		325	/* also provides const_iv_ and const_niv_ macros for them */
		326	#include "def0.h"
161		327
162	/*****************************************************************************/	328	/*****************************************************************************/
163		329
164	static void	330	static void
165	fiemap (eio_req *req)	331	fiemap (eio_req *req)
…		…
257	#endif	423	#endif
258	}	424	}
259		425
260	/*****************************************************************************/	426	/*****************************************************************************/
261		427
		428	static int close_fd; /* dummy fd to close fds via dup2 */
		429
262	enum {	430	enum {
263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	431	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
264	};	432	};
265		433
266	typedef eio_req *aio_req;	434	typedef eio_req *aio_req;
…		…
304	}	472	}
305		473
306	static SV *	474	static SV *
307	newSVaio_wd (aio_wd wd)	475	newSVaio_wd (aio_wd wd)
308	{	476	{
309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	477	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
310	}	478	}
311		479
312	static aio_req	480	static aio_req
313	SvAIO_REQ (SV *sv)	481	SvAIO_REQ (SV *sv)
314	{	482	{
…		…
333	|| SvTYPE (SvRV (sv)) != SVt_PVMG	501	|| SvTYPE (SvRV (sv)) != SVt_PVMG
334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	502	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	503	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
336		504
337	return (aio_wd)(long)SvIVX (SvRV (sv));	505	return (aio_wd)(long)SvIVX (SvRV (sv));
		506	}
		507
		508	static SV *
		509	newmortalFH (int fd, int flags)
		510	{
		511	if (fd < 0)
		512	return &PL_sv_undef;
		513
		514	GV *gv = (GV *)sv_newmortal ();
		515	char sym[64];
		516	int symlen;
		517
		518	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		519	gv_init (gv, aio_stash, sym, symlen, 0);
		520
		521	symlen = snprintf (
		522	sym,
		523	sizeof (sym),
		524	"%s&=%d",
		525	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		526	fd
		527	);
		528
		529	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		530	? (SV *)gv : &PL_sv_undef;
338	}	531	}
339		532
340	static void	533	static void
341	aio_grp_feed (aio_req grp)	534	aio_grp_feed (aio_req grp)
342	{	535	{
…		…
470	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	663	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
471	}	664	}
472	break;	665	break;
473		666
474	case EIO_OPEN:	667	case EIO_OPEN:
475	{	668	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
476	/* convert fd to fh */
477	SV *fh = &PL_sv_undef;
478
479	if (req->result >= 0)
480	{
481	GV *gv = (GV *)sv_newmortal ();
482	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
483	char sym [64];
484	int symlen;
485
486	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
487	gv_init (gv, aio_stash, sym, symlen, 0);
488
489	symlen = snprintf (
490	sym,
491	sizeof (sym),
492	"%s&=%d",
493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494	(int)req->result
495	);
496
497	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
498	fh = (SV *)gv;
499	}
500
501	PUSHs (fh);
502	}
503	break;	669	break;
504		670
505	case EIO_STATVFS:	671	case EIO_STATVFS:
506	case EIO_FSTATVFS:	672	case EIO_FSTATVFS:
507	{	673	{
…		…
587	SvSETMAGIC (req->sv2);	753	SvSETMAGIC (req->sv2);
588	PUSHs (sv_result);	754	PUSHs (sv_result);
589	}	755	}
590	break;	756	break;
591		757
		758	case EIO_SLURP:
		759	{
		760	if (req->result >= 0)
		761	{
		762	/* if length was originally not known, we steal the malloc'ed memory */
		763	if (req->flags & EIO_FLAG_PTR2_FREE)
		764	{
		765	req->flags &= ~EIO_FLAG_PTR2_FREE;
		766	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		767	}
		768	else
		769	{
		770	SvCUR_set (req->sv2, req->result);
		771	*SvEND (req->sv2) = 0;
		772	SvPOK_only (req->sv2);
		773	}
		774
		775	SvSETMAGIC (req->sv2);
		776	}
		777
		778	PUSHs (sv_result);
		779	}
		780	break;
		781
592	case EIO_CUSTOM:	782	case EIO_CUSTOM:
593	if (req->feed == fiemap)	783	if (req->feed == fiemap)
594	{	784	{
595	#if HAVE_FIEMAP	785	#if HAVE_FIEMAP
596	if (!req->result)	786	if (!req->result)
…		…
701	{	891	{
702	while (eio_nreqs ())	892	while (eio_nreqs ())
703	{	893	{
704	int size;	894	int size;
705		895
706	X_LOCK (reslock);	896	X_LOCK (EIO_POOL->reslock);
707	size = res_queue.size;	897	size = EIO_POOL->res_queue.size;
708	X_UNLOCK (reslock);	898	X_UNLOCK (EIO_POOL->reslock);
709		899
710	if (size)	900	if (size)
711	return;	901	return;
712		902
713	etp_maybe_start_thread ();	903	etp_maybe_start_thread (EIO_POOL);
714		904
715	s_epipe_wait (&respipe);	905	s_epipe_wait (&respipe);
716	}	906	}
717	}	907	}
718		908
…		…
739	create_respipe ();	929	create_respipe ();
740		930
741	if (eio_init (want_poll, done_poll) < 0)	931	if (eio_init (want_poll, done_poll) < 0)
742	croak ("IO::AIO: unable to initialise eio library");	932	croak ("IO::AIO: unable to initialise eio library");
743	}	933	}
744
745	/*****************************************************************************/
746
747	#if !_POSIX_MAPPED_FILES
748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
749	# define munmap(addr,length) EIO_ENOSYS ()
750	#endif
751
752	#if !_POSIX_MEMORY_PROTECTION
753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
754	# define PROT_NONE 0
755	# define PROT_WRITE 0
756	# define MAP_PRIVATE 0
757	# define MAP_SHARED 0
758	# define MAP_FIXED 0
759	#endif
760
761	#define MMAP_MAGIC PERL_MAGIC_ext
762
763	static int ecb_cold
764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
765	{
766	int old_errno = errno;
767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
768	errno = old_errno;
769
770	mg->mg_obj = 0; /* just in case */
771
772	SvREADONLY_off (sv);
773
774	if (SvPVX (sv) != mg->mg_ptr)
775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
776
777	SvCUR_set (sv, 0);
778	SvPVX (sv) = 0;
779	SvOK_off (sv);
780
781	return 0;
782	}
783
784	static MGVTBL mmap_vtbl = {
785	0, 0, 0, 0, mmap_free
786	};
787		934
788	/*****************************************************************************/	935	/*****************************************************************************/
789		936
790	static SV *	937	static SV *
791	get_cb (SV *cb_sv)	938	get_cb (SV *cb_sv)
…		…
887	req_set_path1 (req, fh_or_path);	1034	req_set_path1 (req, fh_or_path);
888	break;	1035	break;
889	}	1036	}
890	}	1037	}
891		1038
		1039	/*****************************************************************************/
		1040
		1041	static void
		1042	ts_set (struct timespec *ts, NV value)
		1043	{
		1044	ts->tv_sec = value;
		1045	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1046	}
		1047
		1048	static NV
		1049	ts_get (const struct timespec *ts)
		1050	{
		1051	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1052	}
		1053
		1054	/*****************************************************************************/
		1055
892	XS(boot_IO__AIO) ecb_cold;	1056	XS(boot_IO__AIO) ecb_cold;
893		1057
894	MODULE = IO::AIO PACKAGE = IO::AIO	1058	MODULE = IO::AIO PACKAGE = IO::AIO
895		1059
896	PROTOTYPES: ENABLE	1060	PROTOTYPES: ENABLE
…		…
903	} *civ, const_iv[] = {	1067	} *civ, const_iv[] = {
904	# define const_niv(name, value) { # name, (IV) value },	1068	# define const_niv(name, value) { # name, (IV) value },
905	# define const_iv(name) { # name, (IV) name },	1069	# define const_iv(name) { # name, (IV) name },
906	# define const_eio(name) { # name, (IV) EIO_ ## name },	1070	# define const_eio(name) { # name, (IV) EIO_ ## name },
907		1071
908	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1072	/* you have to re-run ./gendef0 after adding/removing any constants here */
909		1073	/* the first block can be undef if missing */
910	const_iv (ENOSYS)	1074	const_iv (ENOSYS)
911	const_iv (EXDEV)	1075	const_iv (EXDEV)
912	const_iv (EBADR)	1076	const_iv (EBADR)
		1077
		1078	/* for lseek */
		1079	const_iv (SEEK_DATA)
		1080	const_iv (SEEK_HOLE)
		1081
		1082	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1083	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1084	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1085	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1086	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1087	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1088
		1089	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1090	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1091	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1092	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1093	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1094
		1095	/* the second block will be 0 when missing */
		1096	const_iv (O_ACCMODE)
913		1097
914	const_iv (O_RDONLY)	1098	const_iv (O_RDONLY)
915	const_iv (O_WRONLY)	1099	const_iv (O_WRONLY)
916	const_iv (O_RDWR)	1100	const_iv (O_RDWR)
917	const_iv (O_CREAT)	1101	const_iv (O_CREAT)
…		…
931	const_iv (O_SEARCH)	1115	const_iv (O_SEARCH)
932	const_iv (O_DIRECTORY)	1116	const_iv (O_DIRECTORY)
933	const_iv (O_DSYNC)	1117	const_iv (O_DSYNC)
934	const_iv (O_RSYNC)	1118	const_iv (O_RSYNC)
935	const_iv (O_SYNC)	1119	const_iv (O_SYNC)
		1120	const_iv (O_PATH)
		1121	const_iv (O_TMPFILE)
936	const_iv (O_TTY_INIT)	1122	const_iv (O_TTY_INIT)
937		1123
938	const_iv (S_IFIFO)	1124	const_iv (S_IFIFO)
939	const_iv (S_IFCHR)	1125	const_iv (S_IFCHR)
940	const_iv (S_IFBLK)	1126	const_iv (S_IFBLK)
…		…
942	const_iv (S_IFREG)	1128	const_iv (S_IFREG)
943	const_iv (S_IFDIR)	1129	const_iv (S_IFDIR)
944	const_iv (S_IFWHT)	1130	const_iv (S_IFWHT)
945	const_iv (S_IFSOCK)	1131	const_iv (S_IFSOCK)
946	const_iv (S_IFMT)	1132	const_iv (S_IFMT)
947
948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
954
955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
960		1133
961	const_iv (ST_RDONLY)	1134	const_iv (ST_RDONLY)
962	const_iv (ST_NOSUID)	1135	const_iv (ST_NOSUID)
963	const_iv (ST_NODEV)	1136	const_iv (ST_NODEV)
964	const_iv (ST_NOEXEC)	1137	const_iv (ST_NOEXEC)
…		…
974	const_iv (PROT_NONE)	1147	const_iv (PROT_NONE)
975	const_iv (PROT_EXEC)	1148	const_iv (PROT_EXEC)
976	const_iv (PROT_READ)	1149	const_iv (PROT_READ)
977	const_iv (PROT_WRITE)	1150	const_iv (PROT_WRITE)
978		1151
979	/*const_iv (MAP_FIXED)*/
980	const_iv (MAP_PRIVATE)	1152	const_iv (MAP_PRIVATE)
981	const_iv (MAP_SHARED)	1153	const_iv (MAP_SHARED)
		1154	const_iv (MAP_FIXED)
982	const_iv (MAP_ANONYMOUS)	1155	const_iv (MAP_ANONYMOUS)
983		1156
984	/* linuxish */	1157	/* linuxish */
985	const_iv (MAP_HUGETLB)
986	const_iv (MAP_LOCKED)	1158	const_iv (MAP_LOCKED)
987	const_iv (MAP_NORESERVE)	1159	const_iv (MAP_NORESERVE)
988	const_iv (MAP_POPULATE)	1160	const_iv (MAP_POPULATE)
989	const_iv (MAP_NONBLOCK)	1161	const_iv (MAP_NONBLOCK)
		1162	const_iv (MAP_GROWSDOWN)
		1163	const_iv (MAP_32BIT)
		1164	const_iv (MAP_HUGETLB)
		1165	const_iv (MAP_STACK)
		1166
		1167	const_iv (MREMAP_MAYMOVE)
		1168	const_iv (MREMAP_FIXED)
		1169
		1170	const_iv (F_DUPFD_CLOEXEC)
		1171
		1172	const_iv (MSG_CMSG_CLOEXEC)
		1173	const_iv (SOCK_CLOEXEC)
		1174
		1175	const_iv (F_OFD_GETLK)
		1176	const_iv (F_OFD_SETLK)
		1177	const_iv (F_OFD_GETLKW)
		1178
		1179	const_iv (FIFREEZE)
		1180	const_iv (FITHAW)
		1181	const_iv (FITRIM)
		1182	const_iv (FICLONE)
		1183	const_iv (FICLONERANGE)
		1184	const_iv (FIDEDUPERANGE)
		1185
		1186	const_iv (FS_IOC_GETFLAGS)
		1187	const_iv (FS_IOC_SETFLAGS)
		1188	const_iv (FS_IOC_GETVERSION)
		1189	const_iv (FS_IOC_SETVERSION)
		1190	const_iv (FS_IOC_FIEMAP)
		1191	const_iv (FS_IOC_FSGETXATTR)
		1192	const_iv (FS_IOC_FSSETXATTR)
		1193	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1195	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1196
		1197	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1198
		1199	const_iv (FS_SECRM_FL)
		1200	const_iv (FS_UNRM_FL)
		1201	const_iv (FS_COMPR_FL)
		1202	const_iv (FS_SYNC_FL)
		1203	const_iv (FS_IMMUTABLE_FL)
		1204	const_iv (FS_APPEND_FL)
		1205	const_iv (FS_NODUMP_FL)
		1206	const_iv (FS_NOATIME_FL)
		1207	const_iv (FS_DIRTY_FL)
		1208	const_iv (FS_COMPRBLK_FL)
		1209	const_iv (FS_NOCOMP_FL)
		1210	const_iv (FS_ENCRYPT_FL)
		1211	const_iv (FS_BTREE_FL)
		1212	const_iv (FS_INDEX_FL)
		1213	const_iv (FS_JOURNAL_DATA_FL)
		1214	const_iv (FS_NOTAIL_FL)
		1215	const_iv (FS_DIRSYNC_FL)
		1216	const_iv (FS_TOPDIR_FL)
		1217	const_iv (FS_FL_USER_MODIFIABLE)
		1218
		1219	const_iv (FS_XFLAG_REALTIME)
		1220	const_iv (FS_XFLAG_PREALLOC)
		1221	const_iv (FS_XFLAG_IMMUTABLE)
		1222	const_iv (FS_XFLAG_APPEND)
		1223	const_iv (FS_XFLAG_SYNC)
		1224	const_iv (FS_XFLAG_NOATIME)
		1225	const_iv (FS_XFLAG_NODUMP)
		1226	const_iv (FS_XFLAG_RTINHERIT)
		1227	const_iv (FS_XFLAG_PROJINHERIT)
		1228	const_iv (FS_XFLAG_NOSYMLINKS)
		1229	const_iv (FS_XFLAG_EXTSIZE)
		1230	const_iv (FS_XFLAG_EXTSZINHERIT)
		1231	const_iv (FS_XFLAG_NODEFRAG)
		1232	const_iv (FS_XFLAG_FILESTREAM)
		1233	const_iv (FS_XFLAG_DAX)
		1234	const_iv (FS_XFLAG_HASATTR)
990		1235
991	const_iv (FIEMAP_FLAG_SYNC)	1236	const_iv (FIEMAP_FLAG_SYNC)
992	const_iv (FIEMAP_FLAG_XATTR)	1237	const_iv (FIEMAP_FLAG_XATTR)
993	const_iv (FIEMAP_FLAGS_COMPAT)	1238	const_iv (FIEMAP_FLAGS_COMPAT)
994	const_iv (FIEMAP_EXTENT_LAST)	1239	const_iv (FIEMAP_EXTENT_LAST)
…		…
1006	const_iv (SPLICE_F_MOVE)	1251	const_iv (SPLICE_F_MOVE)
1007	const_iv (SPLICE_F_NONBLOCK)	1252	const_iv (SPLICE_F_NONBLOCK)
1008	const_iv (SPLICE_F_MORE)	1253	const_iv (SPLICE_F_MORE)
1009	const_iv (SPLICE_F_GIFT)	1254	const_iv (SPLICE_F_GIFT)
1010		1255
1011	const_iv (SEEK_DATA)	1256	const_iv (EFD_CLOEXEC)
		1257	const_iv (EFD_NONBLOCK)
1012	const_iv (SEEK_HOLE)	1258	const_iv (EFD_SEMAPHORE)
1013		1259
1014	/* libeio constants */	1260	const_iv (CLOCK_REALTIME)
		1261	const_iv (CLOCK_MONOTONIC)
		1262	const_iv (CLOCK_BOOTTIME)
		1263	const_iv (CLOCK_REALTIME_ALARM)
		1264	const_iv (CLOCK_BOOTTIME_ALARM)
		1265
		1266	const_iv (TFD_NONBLOCK)
		1267	const_iv (TFD_CLOEXEC)
		1268
		1269	const_iv (TFD_TIMER_ABSTIME)
		1270	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1271
		1272	/* these are libeio constants, and are independent of gendef0 */
1015	const_eio (SEEK_SET)	1273	const_eio (SEEK_SET)
1016	const_eio (SEEK_CUR)	1274	const_eio (SEEK_CUR)
1017	const_eio (SEEK_END)	1275	const_eio (SEEK_END)
1018		1276
1019	const_eio (MCL_FUTURE)	1277	const_eio (MCL_FUTURE)
1020	const_eio (MCL_CURRENT)	1278	const_eio (MCL_CURRENT)
		1279	const_eio (MCL_ONFAULT)
1021		1280
1022	const_eio (MS_ASYNC)	1281	const_eio (MS_ASYNC)
1023	const_eio (MS_INVALIDATE)	1282	const_eio (MS_INVALIDATE)
1024	const_eio (MS_SYNC)	1283	const_eio (MS_SYNC)
1025		1284
…		…
1029	const_eio (SYNC_FILE_RANGE_WRITE)	1288	const_eio (SYNC_FILE_RANGE_WRITE)
1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1289	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1031		1290
1032	const_eio (FALLOC_FL_KEEP_SIZE)	1291	const_eio (FALLOC_FL_KEEP_SIZE)
1033	const_eio (FALLOC_FL_PUNCH_HOLE)	1292	const_eio (FALLOC_FL_PUNCH_HOLE)
		1293	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1294	const_eio (FALLOC_FL_ZERO_RANGE)
		1295	const_eio (FALLOC_FL_INSERT_RANGE)
		1296	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1297
		1298	const_eio (RENAME_NOREPLACE)
		1299	const_eio (RENAME_EXCHANGE)
		1300	const_eio (RENAME_WHITEOUT)
1034		1301
1035	const_eio (READDIR_DENTS)	1302	const_eio (READDIR_DENTS)
1036	const_eio (READDIR_DIRS_FIRST)	1303	const_eio (READDIR_DIRS_FIRST)
1037	const_eio (READDIR_STAT_ORDER)	1304	const_eio (READDIR_STAT_ORDER)
1038	const_eio (READDIR_FOUND_UNKNOWN)	1305	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1323	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1324	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1058		1325
1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1326	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1060		1327
		1328	/* allocate dummy pipe fd for aio_close */
		1329	{
		1330	int pipefd [2];
		1331
		1332	if (
		1333	#ifdef _WIN32
		1334	_pipe (pipefd, 1, _O_BINARY) < 0
		1335	#else
		1336	pipe (pipefd) < 0
		1337	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1338	#endif
		1339	|| close (pipefd [1]) < 0
		1340	)
		1341	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1342
		1343	close_fd = pipefd [0];
		1344	}
		1345
1061	reinit ();	1346	reinit ();
1062	}	1347	}
1063		1348
1064	void	1349	void
1065	reinit ()	1350	reinit ()
…		…
1106	PROTOTYPE: $	1391	PROTOTYPE: $
1107	CODE:	1392	CODE:
1108	max_outstanding = maxreqs;	1393	max_outstanding = maxreqs;
1109		1394
1110	void	1395	void
1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1396	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1112	PPCODE:	1397	PPCODE:
1113	{	1398	{
1114	dREQ;	1399	dREQ;
1115		1400
1116	req->type = EIO_WD_OPEN;	1401	req->type = EIO_WD_OPEN;
…		…
1118		1403
1119	REQ_SEND;	1404	REQ_SEND;
1120	}	1405	}
1121		1406
1122	void	1407	void
1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1408	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1124	PPCODE:	1409	PPCODE:
1125	{	1410	{
1126	dREQ;	1411	dREQ;
1127		1412
1128	req->type = EIO_OPEN;	1413	req->type = EIO_OPEN;
…		…
1132		1417
1133	REQ_SEND;	1418	REQ_SEND;
1134	}	1419	}
1135		1420
1136	void	1421	void
1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1422	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1138	ALIAS:	1423	ALIAS:
1139	aio_fsync = EIO_FSYNC	1424	aio_fsync = EIO_FSYNC
1140	aio_fdatasync = EIO_FDATASYNC	1425	aio_fdatasync = EIO_FDATASYNC
1141	aio_syncfs = EIO_SYNCFS	1426	aio_syncfs = EIO_SYNCFS
1142	PPCODE:	1427	PPCODE:
…		…
1150		1435
1151	REQ_SEND;	1436	REQ_SEND;
1152	}	1437	}
1153		1438
1154	void	1439	void
1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1440	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1156	PPCODE:	1441	PPCODE:
1157	{	1442	{
1158	int fd = s_fileno_croak (fh, 0);	1443	int fd = s_fileno_croak (fh, 0);
1159	dREQ;	1444	dREQ;
1160		1445
…		…
1167		1452
1168	REQ_SEND;	1453	REQ_SEND;
1169	}	1454	}
1170		1455
1171	void	1456	void
1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1457	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1173	PPCODE:	1458	PPCODE:
1174	{	1459	{
1175	int fd = s_fileno_croak (fh, 0);	1460	int fd = s_fileno_croak (fh, 0);
1176	dREQ;	1461	dREQ;
1177		1462
…		…
1184		1469
1185	REQ_SEND;	1470	REQ_SEND;
1186	}	1471	}
1187		1472
1188	void	1473	void
1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1474	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1190	PPCODE:	1475	PPCODE:
1191	{	1476	{
1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1477	dREQ;
1193	int fd = s_fileno_croak (fh, 0);	1478	int fd = s_fileno_croak (fh, 0);
1194	dREQ;
1195		1479
1196	if (expect_false (close_fd < 0))	1480	/* partially duplicate logic in s_fileno */
		1481	SvGETMAGIC (fh);
		1482
		1483	if (SvROK (fh))
		1484	{
		1485	fh = SvRV (fh);
		1486	SvGETMAGIC (fh);
		1487	}
		1488
		1489	if (SvTYPE (fh) == SVt_PVGV)
1197	{	1490	{
1198	int pipefd [2];	1491	/* perl filehandle */
		1492	PerlIOUnix_refcnt_inc (fd);
		1493	do_close ((GV *)fh, 1);
1199		1494
1200	if (	1495	req->type = EIO_CLOSE;
1201	#ifdef _WIN32	1496	req->int1 = fd;
1202	_pipe (pipefd, 1, _O_BINARY) < 0	1497	req->sv2 = newSVsv (fh);
1203	#else
1204	pipe (pipefd) < 0
1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1206	#endif
1207	|| close (pipefd [1]) < 0
1208	)
1209	abort (); /*D*/
1210
1211	close_fd = pipefd [0];
1212	}	1498	}
1213		1499	else
		1500	{
		1501	/* fd number */
1214	req->type = EIO_DUP2;	1502	req->type = EIO_DUP2;
1215	req->int1 = close_fd;	1503	req->int1 = close_fd;
1216	req->sv2 = newSVsv (fh);	1504	req->sv2 = newSVsv (fh);
1217	req->int2 = fd;	1505	req->int2 = fd;
		1506	}
1218		1507
1219	REQ_SEND;	1508	REQ_SEND;
1220	}	1509	}
1221		1510
1222	void	1511	void
1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1512	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1224	PPCODE:	1513	PPCODE:
1225	{	1514	{
1226	int fd = s_fileno_croak (fh, 0);	1515	int fd = s_fileno_croak (fh, 0);
1227	dREQ;	1516	dREQ;
1228		1517
…		…
1234		1523
1235	REQ_SEND;	1524	REQ_SEND;
1236	}	1525	}
1237		1526
1238	void	1527	void
1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1528	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1240	ALIAS:	1529	ALIAS:
1241	aio_read = EIO_READ	1530	aio_read = EIO_READ
1242	aio_write = EIO_WRITE	1531	aio_write = EIO_WRITE
1243	PPCODE:	1532	PPCODE:
1244	{	1533	{
…		…
1260	len = svlen - dataoffset;	1549	len = svlen - dataoffset;
1261	}	1550	}
1262	else	1551	else
1263	{	1552	{
1264	/* read: check type and grow scalar as necessary */	1553	/* read: check type and grow scalar as necessary */
1265	SvUPGRADE (data, SVt_PV);
1266	if (SvLEN (data) >= SvCUR (data))	1554	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1267	svptr = SvGROW (data, len + dataoffset + 1);	1555	svptr = sv_grow (data, len + dataoffset + 1);
1268	else if (SvCUR (data) < len + dataoffset)	1556	else if (SvCUR (data) < len + dataoffset)
1269	croak ("length + dataoffset outside of scalar, and cannot grow");	1557	croak ("length + dataoffset outside of scalar, and cannot grow");
1270	}	1558	}
1271		1559
1272	{	1560	{
…		…
1290	REQ_SEND;	1578	REQ_SEND;
1291	}	1579	}
1292	}	1580	}
1293		1581
1294	void	1582	void
		1583	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1584	ALIAS:
		1585	aio_ioctl = EIO_IOCTL
		1586	aio_fcntl = EIO_FCNTL
		1587	PPCODE:
		1588	{
		1589	int fd = s_fileno_croak (fh, 0);
		1590	char *svptr;
		1591
		1592	if (SvPOK (arg) || !SvNIOK (arg))
		1593	{
		1594	STRLEN svlen;
		1595	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1596	#ifdef IOCPARM_LEN
		1597	STRLEN need = IOCPARM_LEN (request);
		1598	#else
		1599	STRLEN need = 256;
		1600	#endif
		1601
		1602	if (svlen < need)
		1603	svptr = SvGROW (arg, need);
		1604	}
		1605	else
		1606	svptr = (char *)SvIV (arg);
		1607
		1608	{
		1609	dREQ;
		1610
		1611	req->type = ix;
		1612	req->sv1 = newSVsv (fh);
		1613	req->int1 = fd;
		1614	req->int2 = (long)request;
		1615	req->sv2 = SvREFCNT_inc (arg);
		1616	req->ptr2 = svptr;
		1617
		1618	REQ_SEND;
		1619	}
		1620	}
		1621
		1622	void
1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1623	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1296	ALIAS:	1624	ALIAS:
1297	aio_readlink = EIO_READLINK	1625	aio_readlink = EIO_READLINK
1298	aio_realpath = EIO_REALPATH	1626	aio_realpath = EIO_REALPATH
1299	PPCODE:	1627	PPCODE:
1300	{	1628	{
…		…
1305		1633
1306	REQ_SEND;	1634	REQ_SEND;
1307	}	1635	}
1308		1636
1309	void	1637	void
1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1638	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1311	PPCODE:	1639	PPCODE:
1312	{	1640	{
1313	int ifd = s_fileno_croak (in_fh , 0);	1641	int ifd = s_fileno_croak (in_fh , 0);
1314	int ofd = s_fileno_croak (out_fh, 1);	1642	int ofd = s_fileno_croak (out_fh, 1);
1315	dREQ;	1643	dREQ;
…		…
1324		1652
1325	REQ_SEND;	1653	REQ_SEND;
1326	}	1654	}
1327		1655
1328	void	1656	void
1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1657	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1330	PPCODE:	1658	PPCODE:
1331	{	1659	{
1332	int fd = s_fileno_croak (fh, 0);	1660	int fd = s_fileno_croak (fh, 0);
1333	dREQ;	1661	dREQ;
1334		1662
…		…
1340		1668
1341	REQ_SEND;	1669	REQ_SEND;
1342	}	1670	}
1343		1671
1344	void	1672	void
1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1673	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1346	ALIAS:	1674	ALIAS:
1347	aio_stat = EIO_STAT	1675	aio_stat = EIO_STAT
1348	aio_lstat = EIO_LSTAT	1676	aio_lstat = EIO_LSTAT
1349	aio_statvfs = EIO_STATVFS	1677	aio_statvfs = EIO_STATVFS
1350	PPCODE:	1678	PPCODE:
…		…
1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1682	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1355		1683
1356	REQ_SEND;	1684	REQ_SEND;
1357	}	1685	}
1358		1686
		1687	void
		1688	st_xtime ()
		1689	ALIAS:
		1690	st_atime = 0x01
		1691	st_mtime = 0x02
		1692	st_ctime = 0x04
		1693	st_btime = 0x08
		1694	st_xtime = 0x0f
		1695	PPCODE:
		1696	EXTEND (SP, 4);
		1697	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1698	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1699	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1700	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1701
		1702	void
		1703	st_xtimensec ()
		1704	ALIAS:
		1705	st_atimensec = 0x01
		1706	st_mtimensec = 0x02
		1707	st_ctimensec = 0x04
		1708	st_btimensec = 0x08
		1709	st_xtimensec = 0x0f
		1710	st_btimesec = 0x10
		1711	st_gen = 0x20
		1712	PPCODE:
		1713	EXTEND (SP, 4);
		1714	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1715	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1716	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1717	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1718	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1719	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1720
1359	UV	1721	UV
1360	major (UV dev)	1722	major (UV dev)
1361	ALIAS:	1723	ALIAS:
1362	minor = 1	1724	minor = 1
1363	CODE:	1725	CODE:
1364	RETVAL = ix ? major (dev) : minor (dev);	1726	RETVAL = ix ? minor (dev) : major (dev);
1365	OUTPUT:	1727	OUTPUT:
1366	RETVAL	1728	RETVAL
1367		1729
1368	UV	1730	UV
1369	makedev (UV maj, UV min)	1731	makedev (UV maj, UV min)
…		…
1371	RETVAL = makedev (maj, min);	1733	RETVAL = makedev (maj, min);
1372	OUTPUT:	1734	OUTPUT:
1373	RETVAL	1735	RETVAL
1374		1736
1375	void	1737	void
1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1738	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1377	PPCODE:	1739	PPCODE:
1378	{	1740	{
1379	dREQ;	1741	dREQ;
1380		1742
1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1743	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1384		1746
1385	REQ_SEND;	1747	REQ_SEND;
1386	}	1748	}
1387		1749
1388	void	1750	void
1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1751	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1390	PPCODE:	1752	PPCODE:
1391	{	1753	{
1392	dREQ;	1754	dREQ;
1393		1755
1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1756	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1396		1758
1397	REQ_SEND;	1759	REQ_SEND;
1398	}	1760	}
1399		1761
1400	void	1762	void
1401	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1763	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1402	PPCODE:	1764	PPCODE:
1403	{	1765	{
1404	dREQ;	1766	dREQ;
1405		1767
1406	req->int2 = mode;	1768	req->int2 = mode;
…		…
1408		1770
1409	REQ_SEND;	1771	REQ_SEND;
1410	}	1772	}
1411		1773
1412	void	1774	void
1413	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1775	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1414	PPCODE:	1776	PPCODE:
1415	{	1777	{
1416	dREQ;	1778	dREQ;
1417		1779
1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1780	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1421		1783
1422	REQ_SEND;	1784	REQ_SEND;
1423	}	1785	}
1424		1786
1425	void	1787	void
1426	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1788	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1427	PPCODE:	1789	PPCODE:
1428	{	1790	{
1429	dREQ;	1791	dREQ;
1430		1792
1431	req->type = EIO_READDIR;	1793	req->type = EIO_READDIR;
…		…
1438		1800
1439	REQ_SEND;	1801	REQ_SEND;
1440	}	1802	}
1441		1803
1442	void	1804	void
1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1805	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1444	PPCODE:	1806	PPCODE:
1445	{	1807	{
1446	dREQ;	1808	dREQ;
1447		1809
1448	req->type = EIO_MKDIR;	1810	req->type = EIO_MKDIR;
…		…
1451		1813
1452	REQ_SEND;	1814	REQ_SEND;
1453	}	1815	}
1454		1816
1455	void	1817	void
1456	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1818	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1457	ALIAS:	1819	ALIAS:
1458	aio_unlink = EIO_UNLINK	1820	aio_unlink = EIO_UNLINK
1459	aio_rmdir = EIO_RMDIR	1821	aio_rmdir = EIO_RMDIR
1460	aio_readdir = EIO_READDIR	1822	aio_readdir = EIO_READDIR
1461	PPCODE:	1823	PPCODE:
…		…
1467		1829
1468	REQ_SEND;	1830	REQ_SEND;
1469	}	1831	}
1470		1832
1471	void	1833	void
1472	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1834	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1473	ALIAS:	1835	ALIAS:
1474	aio_link = EIO_LINK	1836	aio_link = EIO_LINK
1475	aio_symlink = EIO_SYMLINK	1837	aio_symlink = EIO_SYMLINK
1476	aio_rename = EIO_RENAME	1838	aio_rename = EIO_RENAME
1477	PPCODE:	1839	PPCODE:
…		…
1486		1848
1487	REQ_SEND;	1849	REQ_SEND;
1488	}	1850	}
1489		1851
1490	void	1852	void
		1853	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1854	PPCODE:
		1855	{
		1856	eio_wd wd2 = 0;
		1857	dREQ;
		1858
		1859	req->type = EIO_RENAME;
		1860	req_set_path1 (req, oldpath);
		1861	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1862	req->int2 = flags;
		1863	req->int3 = (long)wd2;
		1864
		1865	REQ_SEND;
		1866	}
		1867
		1868	void
1491	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1869	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1492	PPCODE:	1870	PPCODE:
1493	{	1871	{
1494	dREQ;	1872	dREQ;
1495		1873
1496	req->type = EIO_MKNOD;	1874	req->type = EIO_MKNOD;
…		…
1500		1878
1501	REQ_SEND;	1879	REQ_SEND;
1502	}	1880	}
1503		1881
1504	void	1882	void
1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1883	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1506	ALIAS:	1884	ALIAS:
1507	aio_mtouch = EIO_MTOUCH	1885	aio_mtouch = EIO_MTOUCH
1508	aio_msync = EIO_MSYNC	1886	aio_msync = EIO_MSYNC
1509	PPCODE:	1887	PPCODE:
1510	{	1888	{
1511	STRLEN svlen;	1889	STRLEN svlen;
1512	char *svptr = SvPVbyte (data, svlen);	1890	char *svptr = SvPVbyte (data, svlen);
1513	UV len = SvUV (length);	1891	UV len = SvUV (length);
		1892
		1893	if (flags < 0)
		1894	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1514		1895
1515	if (offset < 0)	1896	if (offset < 0)
1516	offset += svlen;	1897	offset += svlen;
1517		1898
1518	if (offset < 0 || offset > svlen)	1899	if (offset < 0 || offset > svlen)
…		…
1533	REQ_SEND;	1914	REQ_SEND;
1534	}	1915	}
1535	}	1916	}
1536		1917
1537	void	1918	void
1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1919	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1539	PPCODE:	1920	PPCODE:
1540	{	1921	{
1541	STRLEN svlen;	1922	STRLEN svlen;
1542	char *svptr = SvPVbyte (data, svlen);	1923	char *svptr = SvPVbyte (data, svlen);
1543	UV len = SvUV (length);	1924	UV len = SvUV (length);
…		…
1562	REQ_SEND;	1943	REQ_SEND;
1563	}	1944	}
1564	}	1945	}
1565		1946
1566	void	1947	void
1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1948	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1568	PPCODE:	1949	PPCODE:
1569	{	1950	{
1570	dREQ;	1951	dREQ;
1571		1952
1572	req->type = EIO_MLOCKALL;	1953	req->type = EIO_MLOCKALL;
…		…
1574		1955
1575	REQ_SEND;	1956	REQ_SEND;
1576	}	1957	}
1577		1958
1578	void	1959	void
1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1960	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1580	PPCODE:	1961	PPCODE:
1581	{	1962	{
1582	int fd = s_fileno_croak (fh, 0);	1963	int fd = s_fileno_croak (fh, 0);
1583	dREQ;	1964	dREQ;
1584		1965
…		…
1597		1978
1598	REQ_SEND;	1979	REQ_SEND;
1599	}	1980	}
1600		1981
1601	void	1982	void
		1983	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1984	PPCODE:
		1985	{
		1986	char *svptr = 0;
		1987
		1988	sv_clear_foreign (data);
		1989
		1990	if (length) /* known length, directly read into scalar */
		1991	{
		1992	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1993	svptr = sv_grow (data, length + 1);
		1994	else if (SvCUR (data) < length)
		1995	croak ("length outside of scalar, and cannot grow");
		1996	else
		1997	svptr = SvPVbyte_nolen (data);
		1998	}
		1999
		2000	{
		2001	dREQ;
		2002
		2003	req->type = EIO_SLURP;
		2004	req_set_path1 (req, pathname);
		2005	req->offs = offset;
		2006	req->size = length;
		2007	req->sv2 = SvREFCNT_inc (data);
		2008	req->ptr2 = svptr;
		2009
		2010	if (!SvREADONLY (data))
		2011	{
		2012	SvREADONLY_on (data);
		2013	req->flags |= FLAG_SV2_RO_OFF;
		2014	}
		2015
		2016	REQ_SEND;
		2017	}
		2018	}
		2019
		2020	void
1602	aio_busy (double delay, SV *callback=&PL_sv_undef)	2021	aio_busy (double delay, SV *callback = &PL_sv_undef)
1603	PPCODE:	2022	PPCODE:
1604	{	2023	{
1605	dREQ;	2024	dREQ;
1606		2025
1607	req->type = EIO_BUSY;	2026	req->type = EIO_BUSY;
…		…
1609		2028
1610	REQ_SEND;	2029	REQ_SEND;
1611	}	2030	}
1612		2031
1613	void	2032	void
1614	aio_group (SV *callback=&PL_sv_undef)	2033	aio_group (SV *callback = &PL_sv_undef)
1615	PPCODE:	2034	PPCODE:
1616	{	2035	{
1617	dREQ;	2036	dREQ;
1618		2037
1619	req->type = EIO_GROUP;	2038	req->type = EIO_GROUP;
1620		2039
		2040	PUTBACK;
1621	req_submit (req);	2041	req_submit (req);
		2042	SPAGAIN;
		2043
1622	XPUSHs (req_sv (req, aio_grp_stash));	2044	XPUSHs (req_sv (req, aio_grp_stash));
1623	}	2045	}
1624		2046
1625	void	2047	void
1626	aio_nop (SV *callback=&PL_sv_undef)	2048	aio_nop (SV *callback = &PL_sv_undef)
1627	ALIAS:	2049	ALIAS:
1628	aio_nop = EIO_NOP	2050	aio_nop = EIO_NOP
1629	aio_sync = EIO_SYNC	2051	aio_sync = EIO_SYNC
1630	PPCODE:	2052	PPCODE:
1631	{	2053	{
…		…
1635		2057
1636	REQ_SEND;	2058	REQ_SEND;
1637	}	2059	}
1638		2060
1639	int	2061	int
1640	aioreq_pri (int pri = 0)	2062	aioreq_pri (int pri = NO_INIT)
1641	CODE:	2063	CODE:
1642	RETVAL = next_pri;	2064	RETVAL = next_pri;
1643	if (items > 0)	2065	if (items > 0)
1644	{	2066	{
1645	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2067	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1735	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2157	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1736	OUTPUT:	2158	OUTPUT:
1737	RETVAL	2159	RETVAL
1738		2160
1739	void	2161	void
1740	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2162	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1741	PPCODE:	2163	PPCODE:
1742	sv_unmagic (scalar, MMAP_MAGIC);	2164	sv_clear_foreign (scalar);
1743	{	2165	{
1744	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2166	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1745	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2167	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1746	if (addr == (void *)-1)	2168	if (addr == (void *)-1)
1747	XSRETURN_NO;	2169	XSRETURN_NO;
1748		2170
1749	sv_force_normal (scalar);	2171	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1750
1751	/* we store the length in mg_obj, as namlen is I32 :/ */
1752	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1753	->mg_obj = (SV *)length;
1754
1755	SvUPGRADE (scalar, SVt_PV); /* nop... */
1756		2172
1757	if (!(prot & PROT_WRITE))	2173	if (!(prot & PROT_WRITE))
1758	SvREADONLY_on (scalar);	2174	SvREADONLY_on (scalar);
1759		2175
1760	if (SvLEN (scalar))
1761	Safefree (SvPVX (scalar));
1762
1763	SvPVX (scalar) = (char *)addr;
1764	SvCUR_set (scalar, length);
1765	SvLEN_set (scalar, 0);
1766	SvPOK_only (scalar);
1767
1768	XSRETURN_YES;	2176	XSRETURN_YES;
1769	}	2177	}
1770		2178
1771	void	2179	void
1772	munmap (SV *scalar)	2180	munmap (SV *scalar)
1773	CODE:	2181	CODE:
1774	sv_unmagic (scalar, MMAP_MAGIC);	2182	sv_clear_foreign (scalar);
		2183
		2184	SV *
		2185	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2186	CODE:
		2187	{
		2188	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2189	void *new;
		2190
		2191	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2192	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2193
		2194	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2195
		2196	RETVAL = &PL_sv_no;
		2197
		2198	if (new != (void *)-1)
		2199	{
		2200	RETVAL = new == (void *)mg->mg_ptr
		2201	? newSVpvn ("0 but true", 10)
		2202	: &PL_sv_yes;
		2203
		2204	mg->mg_ptr = (char *)new;
		2205	mg->mg_obj = (SV *)new_length;
		2206
		2207	SvPVX (scalar) = mg->mg_ptr;
		2208	SvCUR_set (scalar, new_length);
		2209	}
		2210	}
		2211	OUTPUT:
		2212	RETVAL
1775		2213
1776	int	2214	int
1777	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2215	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1778	ALIAS:	2216	ALIAS:
1779	mprotect = 1	2217	mprotect = 1
1780	CODE:	2218	CODE:
1781	{	2219	{
1782	STRLEN svlen;	2220	STRLEN svlen;
1783	void *addr = SvPVbyte (scalar, svlen);	2221	void *addr = SvPVbyte (scalar, svlen);
1784	size_t len = SvUV (length);	2222	STRLEN len = SvUV (length);
1785		2223
1786	if (offset < 0)	2224	if (offset < 0)
1787	offset += svlen;	2225	offset += svlen;
1788		2226
1789	if (offset < 0 || offset > svlen)	2227	if (offset < 0 || offset > svlen)
…		…
1803	}	2241	}
1804	OUTPUT:	2242	OUTPUT:
1805	RETVAL	2243	RETVAL
1806		2244
1807	int	2245	int
1808	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2246	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1809	CODE:	2247	CODE:
1810	{	2248	{
1811	STRLEN svlen;	2249	STRLEN svlen;
1812	void *addr = SvPVbyte (scalar, svlen);	2250	void *addr = SvPVbyte (scalar, svlen);
1813	size_t len = SvUV (length);	2251	size_t len = SvUV (length);
…		…
1828	#else	2266	#else
1829	RETVAL = EIO_ENOSYS ();	2267	RETVAL = EIO_ENOSYS ();
1830	#endif	2268	#endif
1831	}	2269	}
1832	OUTPUT:	2270	OUTPUT:
		2271	RETVAL
		2272
		2273	int
		2274	mlockall (int flags)
		2275	PROTOTYPE: $;
		2276	CODE:
		2277	RETVAL = eio_mlockall_sync (flags);
		2278	OUTPUT:
1833	RETVAL	2279	RETVAL
1834		2280
1835	int	2281	int
1836	munlockall ()	2282	munlockall ()
1837	CODE:	2283	CODE:
…		…
1885	errno = ENOSYS;	2331	errno = ENOSYS;
1886	RETVAL = -1;	2332	RETVAL = -1;
1887	#endif	2333	#endif
1888	OUTPUT:	2334	OUTPUT:
1889	RETVAL	2335	RETVAL
		2336
		2337	void
		2338	pipe2 (int flags = 0)
		2339	PROTOTYPE: ;$
		2340	PPCODE:
		2341	{
		2342	int fd[2];
		2343	int res;
		2344
		2345	if (flags)
		2346	#if HAVE_PIPE2
		2347	res = pipe2 (fd, flags);
		2348	#else
		2349	res = (errno = ENOSYS, -1);
		2350	#endif
		2351	else
		2352	res = pipe (fd);
		2353
		2354	if (!res)
		2355	{
		2356	EXTEND (SP, 2);
		2357	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2358	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2359	}
		2360	}
		2361
		2362	void
		2363	eventfd (unsigned int initval = 0, int flags = 0)
		2364	PPCODE:
		2365	{
		2366	int fd;
		2367	#if HAVE_EVENTFD
		2368	fd = eventfd (initval, flags);
		2369	#else
		2370	fd = (errno = ENOSYS, -1);
		2371	#endif
		2372
		2373	XPUSHs (newmortalFH (fd, O_RDWR));
		2374	}
		2375
		2376	void
		2377	timerfd_create (int clockid, int flags = 0)
		2378	PPCODE:
		2379	{
		2380	int fd;
		2381	#if HAVE_TIMERFD
		2382	fd = timerfd_create (clockid, flags);
		2383	#else
		2384	fd = (errno = ENOSYS, -1);
		2385	#endif
		2386
		2387	XPUSHs (newmortalFH (fd, O_RDWR));
		2388	}
		2389
		2390	void
		2391	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2392	PPCODE:
		2393	{
		2394	int fd = s_fileno_croak (fh, 0);
		2395	#if HAVE_TIMERFD
		2396	int res;
		2397	struct itimerspec its, ots;
		2398
		2399	ts_set (&its.it_interval, interval);
		2400	ts_set (&its.it_value , value);
		2401	res = timerfd_settime (fd, flags, &its, &ots);
		2402
		2403	if (!res)
		2404	{
		2405	EXTEND (SP, 2);
		2406	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2407	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2408	}
		2409	#else
		2410	errno = ENOSYS;
		2411	#endif
		2412	}
		2413
		2414	void
		2415	timerfd_gettime (SV *fh)
		2416	PPCODE:
		2417	{
		2418	int fd = s_fileno_croak (fh, 0);
		2419	#if HAVE_TIMERFD
		2420	int res;
		2421	struct itimerspec ots;
		2422	res = timerfd_gettime (fd, &ots);
		2423
		2424	if (!res)
		2425	{
		2426	EXTEND (SP, 2);
		2427	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2428	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2429	}
		2430	#else
		2431	errno = ENOSYS;
		2432	#endif
		2433	}
		2434
		2435	UV
		2436	get_fdlimit ()
		2437	CODE:
		2438	#if HAVE_RLIMITS
		2439	struct rlimit rl;
		2440	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2441	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2442	#endif
		2443	XSRETURN_UNDEF;
		2444	OUTPUT:
		2445	RETVAL
		2446
		2447	void
		2448	min_fdlimit (UV limit = 0x7fffffffU)
		2449	CODE:
		2450	{
		2451	#if HAVE_RLIMITS
		2452	struct rlimit rl;
		2453	rlim_t orig_rlim_max;
		2454	UV bit;
		2455
		2456	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2457	goto fail;
		2458
		2459	if (rl.rlim_cur == RLIM_INFINITY)
		2460	XSRETURN_YES;
		2461
		2462	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2463
		2464	if (rl.rlim_cur < limit)
		2465	{
		2466	rl.rlim_cur = limit;
		2467
		2468	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2469	rl.rlim_max = rl.rlim_cur;
		2470	}
		2471
		2472	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2473	XSRETURN_YES;
		2474
		2475	if (errno == EPERM)
		2476	{
		2477	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2478	/* our limit overflows a system-wide limit */
		2479	/* try an adaptive algorithm, but do not lower the hardlimit */
		2480	rl.rlim_max = 0;
		2481	for (bit = 0x40000000U; bit; bit >>= 1)
		2482	{
		2483	rl.rlim_max |= bit;
		2484	rl.rlim_cur = rl.rlim_max;
		2485
		2486	/* nevr decrease the hard limit */
		2487	if (rl.rlim_max < orig_rlim_max)
		2488	break;
		2489
		2490	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2491	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2492	}
		2493
		2494	/* now, raise the soft limit to the max permitted */
		2495	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2496	{
		2497	rl.rlim_cur = rl.rlim_max;
		2498	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2499	errno = EPERM;
		2500	}
		2501	}
		2502	#endif
		2503	fail:
		2504	XSRETURN_UNDEF;
		2505	}
1890		2506
1891	void _on_next_submit (SV *cb)	2507	void _on_next_submit (SV *cb)
1892	CODE:	2508	CODE:
1893	SvREFCNT_dec (on_next_submit);	2509	SvREFCNT_dec (on_next_submit);
1894	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2510	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1929	cancel (aio_req_ornot req)	2545	cancel (aio_req_ornot req)
1930	CODE:	2546	CODE:
1931	eio_cancel (req);	2547	eio_cancel (req);
1932		2548
1933	void	2549	void
1934	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2550	cb (aio_req_ornot req, SV *callback = NO_INIT)
1935	PPCODE:	2551	PPCODE:
1936	{	2552	{
1937	if (GIMME_V != G_VOID)	2553	if (GIMME_V != G_VOID)
1938	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2554	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1939		2555
1940	if (items > 1)	2556	if (items > 1)
1941	{	2557	{
1942	SV *cb_cv =get_cb (callback);	2558	SV *cb_cv = get_cb (callback);
1943		2559
1944	SvREFCNT_dec (req->callback);	2560	SvREFCNT_dec (req->callback);
1945	req->callback = SvREFCNT_inc (cb_cv);	2561	req->callback = SvREFCNT_inc (cb_cv);
1946	}	2562	}
1947	}	2563	}
…		…
2004	limit (aio_req grp, int limit)	2620	limit (aio_req grp, int limit)
2005	CODE:	2621	CODE:
2006	eio_grp_limit (grp, limit);	2622	eio_grp_limit (grp, limit);
2007		2623
2008	void	2624	void
2009	feed (aio_req grp, SV *callback=&PL_sv_undef)	2625	feed (aio_req grp, SV *callback = &PL_sv_undef)
2010	CODE:	2626	CODE:
2011	{	2627	{
2012	SvREFCNT_dec (grp->sv2);	2628	SvREFCNT_dec (grp->sv2);
2013	grp->sv2 = newSVsv (callback);	2629	grp->sv2 = newSVsv (callback);
2014	grp->feed = aio_grp_feed;	2630	grp->feed = aio_grp_feed;

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