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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.224 by root, Thu Oct 11 03:20:52 2012 UTC vs.
Revision 1.260 by root, Tue Jul 24 04:58:59 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
…		…
19		21
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	23	# include <sys/mman.h>
22	#endif	24	#endif
23		25
24	#if __linux__	26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	32	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	33	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	34	# include <linux/types.h>
28	# include <linux/fiemap.h>	35	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	36	# define HAVE_FIEMAP 1
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
101		108
102	/*****************************************************************************/	109	/*****************************************************************************/
103		110
		111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
104	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
107		131
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	132	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
114	STRLEN stroffset; \	138	STRLEN stroffset; \
115	SV *self;	139	SV *self;
116		140
117	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
118		142
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	143	#include "libeio/eio.h"
121		144
122	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
…		…
140	# else	163	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	165	# endif
143	#endif	166	#endif
144		167
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	168	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	169	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	170	#endif
151	#ifndef major	171	#ifndef major
152	# define major(dev) ((dev) >> 8)	172	# define major(dev) ((dev) >> 8)
153	#endif	173	#endif
154	#ifndef minor	174	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	175	# define minor(dev) ((dev) & 0xff)
156	#endif	176	#endif
157		177
158	#ifndef PAGESIZE	178	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
		276
		277	/*****************************************************************************/
		278
		279	/* defines all sorts of constants to 0 unless they are already defined */
		280	/* also provides const_iv_ and const_niv_ macros for them */
		281	#include "def0.h"
161		282
162	/*****************************************************************************/	283	/*****************************************************************************/
163		284
164	static void	285	static void
165	fiemap (eio_req *req)	286	fiemap (eio_req *req)
…		…
198	|| !fiemap->fm_mapped_extents /* no more extents */	319	|| !fiemap->fm_mapped_extents /* no more extents */
199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)	320	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200	goto done;	321	goto done;
201		322
202	/* else we have to loop -	323	/* else we have to loop -
203	* it would be tempting (atcually I tried that first) to just query the	324	* it would be tempting (actually I tried that first) to just query the
204	* number of extents needed, but linux often feels like not returning all	325	* number of extents needed, but linux often feels like not returning all
205	* extents, without telling us it left any out. this complicates	326	* extents, without telling us it left any out. this complicates
206	* this quite a bit.	327	* this quite a bit.
207	*/	328	*/
208		329
…		…
221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);	342	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
222		343
223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)	344	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
224	return;	345	return;
225		346
		347	if (!incmap->fm_mapped_extents)
		348	goto done;
		349
226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;	350	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	351	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228	errno = ENOMEM;	352	errno = ENOMEM;
229	if (!fiemap)	353	if (!fiemap)
230	return;	354	return;
…		…
301	}	425	}
302		426
303	static SV *	427	static SV *
304	newSVaio_wd (aio_wd wd)	428	newSVaio_wd (aio_wd wd)
305	{	429	{
306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	430	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
307	}	431	}
308		432
309	static aio_req	433	static aio_req
310	SvAIO_REQ (SV *sv)	434	SvAIO_REQ (SV *sv)
311	{	435	{
…		…
330	|| SvTYPE (SvRV (sv)) != SVt_PVMG	454	|| SvTYPE (SvRV (sv)) != SVt_PVMG
331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	455	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	456	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333		457
334	return (aio_wd)(long)SvIVX (SvRV (sv));	458	return (aio_wd)(long)SvIVX (SvRV (sv));
		459	}
		460
		461	static SV *
		462	newmortalFH (int fd, int flags)
		463	{
		464	if (fd < 0)
		465	return &PL_sv_undef;
		466
		467	GV *gv = (GV *)sv_newmortal ();
		468	char sym[64];
		469	int symlen;
		470
		471	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		472	gv_init (gv, aio_stash, sym, symlen, 0);
		473
		474	symlen = snprintf (
		475	sym,
		476	sizeof (sym),
		477	"%s&=%d",
		478	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		479	fd
		480	);
		481
		482	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		483	? (SV *)gv : &PL_sv_undef;
335	}	484	}
336		485
337	static void	486	static void
338	aio_grp_feed (aio_req grp)	487	aio_grp_feed (aio_req grp)
339	{	488	{
…		…
467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	616	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
468	}	617	}
469	break;	618	break;
470		619
471	case EIO_OPEN:	620	case EIO_OPEN:
472	{	621	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
473	/* convert fd to fh */
474	SV *fh = &PL_sv_undef;
475
476	if (req->result >= 0)
477	{
478	GV *gv = (GV *)sv_newmortal ();
479	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
480	char sym [64];
481	int symlen;
482
483	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
484	gv_init (gv, aio_stash, sym, symlen, 0);
485
486	symlen = snprintf (
487	sym,
488	sizeof (sym),
489	"%s&=%d",
490	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
491	(int)req->result
492	);
493
494	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
495	fh = (SV *)gv;
496	}
497
498	PUSHs (fh);
499	}
500	break;	622	break;
501		623
502	case EIO_STATVFS:	624	case EIO_STATVFS:
503	case EIO_FSTATVFS:	625	case EIO_FSTATVFS:
504	{	626	{
…		…
584	SvSETMAGIC (req->sv2);	706	SvSETMAGIC (req->sv2);
585	PUSHs (sv_result);	707	PUSHs (sv_result);
586	}	708	}
587	break;	709	break;
588		710
		711	case EIO_SLURP:
		712	{
		713	if (req->result >= 0)
		714	{
		715	/* if length was originally not known, we steal the malloc'ed memory */
		716	if (req->flags & EIO_FLAG_PTR2_FREE)
		717	{
		718	req->flags &= ~EIO_FLAG_PTR2_FREE;
		719	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		720	}
		721	else
		722	{
		723	SvCUR_set (req->sv2, req->result);
		724	*SvEND (req->sv2) = 0;
		725	SvPOK_only (req->sv2);
		726	}
		727
		728	SvSETMAGIC (req->sv2);
		729	}
		730
		731	PUSHs (sv_result);
		732	}
		733	break;
		734
589	case EIO_CUSTOM:	735	case EIO_CUSTOM:
590	if (req->feed == fiemap)	736	if (req->feed == fiemap)
591	{	737	{
592	#if HAVE_FIEMAP	738	#if HAVE_FIEMAP
593	if (!req->result)	739	if (!req->result)
…		…
698	{	844	{
699	while (eio_nreqs ())	845	while (eio_nreqs ())
700	{	846	{
701	int size;	847	int size;
702		848
703	X_LOCK (reslock);	849	X_LOCK (EIO_POOL->reslock);
704	size = res_queue.size;	850	size = EIO_POOL->res_queue.size;
705	X_UNLOCK (reslock);	851	X_UNLOCK (EIO_POOL->reslock);
706		852
707	if (size)	853	if (size)
708	return;	854	return;
709		855
710	etp_maybe_start_thread ();	856	etp_maybe_start_thread (EIO_POOL);
711		857
712	s_epipe_wait (&respipe);	858	s_epipe_wait (&respipe);
713	}	859	}
714	}	860	}
715		861
…		…
736	create_respipe ();	882	create_respipe ();
737		883
738	if (eio_init (want_poll, done_poll) < 0)	884	if (eio_init (want_poll, done_poll) < 0)
739	croak ("IO::AIO: unable to initialise eio library");	885	croak ("IO::AIO: unable to initialise eio library");
740	}	886	}
741
742	/*****************************************************************************/
743
744	#if !_POSIX_MAPPED_FILES
745	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
746	# define munmap(addr,length) EIO_ENOSYS ()
747	#endif
748
749	#if !_POSIX_MEMORY_PROTECTION
750	# define mprotect(addr,len,prot) EIO_ENOSYS ()
751	# define PROT_NONE 0
752	# define PROT_WRITE 0
753	# define MAP_PRIVATE 0
754	# define MAP_SHARED 0
755	# define MAP_FIXED 0
756	#endif
757
758	#define MMAP_MAGIC PERL_MAGIC_ext
759
760	static int ecb_cold
761	mmap_free (pTHX_ SV *sv, MAGIC *mg)
762	{
763	int old_errno = errno;
764	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
765	errno = old_errno;
766
767	mg->mg_obj = 0; /* just in case */
768
769	SvREADONLY_off (sv);
770
771	if (SvPVX (sv) != mg->mg_ptr)
772	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
773
774	SvCUR_set (sv, 0);
775	SvPVX (sv) = 0;
776	SvOK_off (sv);
777
778	return 0;
779	}
780
781	static MGVTBL mmap_vtbl = {
782	0, 0, 0, 0, mmap_free
783	};
784		887
785	/*****************************************************************************/	888	/*****************************************************************************/
786		889
787	static SV *	890	static SV *
788	get_cb (SV *cb_sv)	891	get_cb (SV *cb_sv)
…		…
884	req_set_path1 (req, fh_or_path);	987	req_set_path1 (req, fh_or_path);
885	break;	988	break;
886	}	989	}
887	}	990	}
888		991
		992	/*****************************************************************************/
		993
		994	static void
		995	ts_set (struct timespec *ts, NV value)
		996	{
		997	ts->tv_sec = value;
		998	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		999	}
		1000
		1001	static NV
		1002	ts_get (const struct timespec *ts)
		1003	{
		1004	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1005	}
		1006
		1007	/*****************************************************************************/
		1008
889	XS(boot_IO__AIO) ecb_cold;	1009	XS(boot_IO__AIO) ecb_cold;
890		1010
891	MODULE = IO::AIO PACKAGE = IO::AIO	1011	MODULE = IO::AIO PACKAGE = IO::AIO
892		1012
893	PROTOTYPES: ENABLE	1013	PROTOTYPES: ENABLE
…		…
900	} *civ, const_iv[] = {	1020	} *civ, const_iv[] = {
901	# define const_niv(name, value) { # name, (IV) value },	1021	# define const_niv(name, value) { # name, (IV) value },
902	# define const_iv(name) { # name, (IV) name },	1022	# define const_iv(name) { # name, (IV) name },
903	# define const_eio(name) { # name, (IV) EIO_ ## name },	1023	# define const_eio(name) { # name, (IV) EIO_ ## name },
904		1024
905	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1025	/* you have to re-run ./gendef0 after adding/removing any constants here */
906		1026	/* the first block can be undef if missing */
907	const_iv (ENOSYS)	1027	const_iv (ENOSYS)
908	const_iv (EXDEV)	1028	const_iv (EXDEV)
909	const_iv (EBADR)	1029	const_iv (EBADR)
		1030
		1031	/* for lseek */
		1032	const_iv (SEEK_DATA)
		1033	const_iv (SEEK_HOLE)
		1034
		1035	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1036	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1037	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1038	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1039	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1040	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1041
		1042	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1043	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1044	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1045	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1046	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1047
		1048	/* the second block will be 0 when missing */
		1049	const_iv (O_ACCMODE)
910		1050
911	const_iv (O_RDONLY)	1051	const_iv (O_RDONLY)
912	const_iv (O_WRONLY)	1052	const_iv (O_WRONLY)
913	const_iv (O_RDWR)	1053	const_iv (O_RDWR)
914	const_iv (O_CREAT)	1054	const_iv (O_CREAT)
…		…
928	const_iv (O_SEARCH)	1068	const_iv (O_SEARCH)
929	const_iv (O_DIRECTORY)	1069	const_iv (O_DIRECTORY)
930	const_iv (O_DSYNC)	1070	const_iv (O_DSYNC)
931	const_iv (O_RSYNC)	1071	const_iv (O_RSYNC)
932	const_iv (O_SYNC)	1072	const_iv (O_SYNC)
		1073	const_iv (O_PATH)
		1074	const_iv (O_TMPFILE)
933	const_iv (O_TTY_INIT)	1075	const_iv (O_TTY_INIT)
934		1076
935	const_iv (S_IFIFO)	1077	const_iv (S_IFIFO)
936	const_iv (S_IFCHR)	1078	const_iv (S_IFCHR)
937	const_iv (S_IFBLK)	1079	const_iv (S_IFBLK)
…		…
939	const_iv (S_IFREG)	1081	const_iv (S_IFREG)
940	const_iv (S_IFDIR)	1082	const_iv (S_IFDIR)
941	const_iv (S_IFWHT)	1083	const_iv (S_IFWHT)
942	const_iv (S_IFSOCK)	1084	const_iv (S_IFSOCK)
943	const_iv (S_IFMT)	1085	const_iv (S_IFMT)
944
945	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
946	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
947	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
948	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
949	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
950	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
951
952	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
953	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
954	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
955	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
956	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
957		1086
958	const_iv (ST_RDONLY)	1087	const_iv (ST_RDONLY)
959	const_iv (ST_NOSUID)	1088	const_iv (ST_NOSUID)
960	const_iv (ST_NODEV)	1089	const_iv (ST_NODEV)
961	const_iv (ST_NOEXEC)	1090	const_iv (ST_NOEXEC)
…		…
971	const_iv (PROT_NONE)	1100	const_iv (PROT_NONE)
972	const_iv (PROT_EXEC)	1101	const_iv (PROT_EXEC)
973	const_iv (PROT_READ)	1102	const_iv (PROT_READ)
974	const_iv (PROT_WRITE)	1103	const_iv (PROT_WRITE)
975		1104
976	/*const_iv (MAP_FIXED)*/
977	const_iv (MAP_PRIVATE)	1105	const_iv (MAP_PRIVATE)
978	const_iv (MAP_SHARED)	1106	const_iv (MAP_SHARED)
		1107	const_iv (MAP_FIXED)
979	const_iv (MAP_ANONYMOUS)	1108	const_iv (MAP_ANONYMOUS)
980		1109
981	/* linuxish */	1110	/* linuxish */
982	const_iv (MAP_HUGETLB)
983	const_iv (MAP_LOCKED)	1111	const_iv (MAP_LOCKED)
984	const_iv (MAP_NORESERVE)	1112	const_iv (MAP_NORESERVE)
985	const_iv (MAP_POPULATE)	1113	const_iv (MAP_POPULATE)
986	const_iv (MAP_NONBLOCK)	1114	const_iv (MAP_NONBLOCK)
		1115	const_iv (MAP_GROWSDOWN)
		1116	const_iv (MAP_32BIT)
		1117	const_iv (MAP_HUGETLB)
		1118	const_iv (MAP_STACK)
		1119
		1120	const_iv (MREMAP_MAYMOVE)
		1121	const_iv (MREMAP_FIXED)
		1122
		1123	const_iv (F_DUPFD_CLOEXEC)
		1124
		1125	const_iv (F_OFD_GETLK)
		1126	const_iv (F_OFD_SETLK)
		1127	const_iv (F_OFD_GETLKW)
		1128
		1129	const_iv (FIFREEZE)
		1130	const_iv (FITHAW)
		1131	const_iv (FITRIM)
		1132	const_iv (FICLONE)
		1133	const_iv (FICLONERANGE)
		1134	const_iv (FIDEDUPERANGE)
		1135
		1136	const_iv (FS_IOC_GETFLAGS)
		1137	const_iv (FS_IOC_SETFLAGS)
		1138	const_iv (FS_IOC_GETVERSION)
		1139	const_iv (FS_IOC_SETVERSION)
		1140	const_iv (FS_IOC_FIEMAP)
		1141	const_iv (FS_IOC_FSGETXATTR)
		1142	const_iv (FS_IOC_FSSETXATTR)
		1143	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1144	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1145	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1146
		1147	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1148
		1149	const_iv (FS_SECRM_FL)
		1150	const_iv (FS_UNRM_FL)
		1151	const_iv (FS_COMPR_FL)
		1152	const_iv (FS_SYNC_FL)
		1153	const_iv (FS_IMMUTABLE_FL)
		1154	const_iv (FS_APPEND_FL)
		1155	const_iv (FS_NODUMP_FL)
		1156	const_iv (FS_NOATIME_FL)
		1157	const_iv (FS_DIRTY_FL)
		1158	const_iv (FS_COMPRBLK_FL)
		1159	const_iv (FS_NOCOMP_FL)
		1160	const_iv (FS_ENCRYPT_FL)
		1161	const_iv (FS_BTREE_FL)
		1162	const_iv (FS_INDEX_FL)
		1163	const_iv (FS_JOURNAL_DATA_FL)
		1164	const_iv (FS_NOTAIL_FL)
		1165	const_iv (FS_DIRSYNC_FL)
		1166	const_iv (FS_TOPDIR_FL)
		1167	const_iv (FS_FL_USER_MODIFIABLE)
		1168
		1169	const_iv (FS_XFLAG_REALTIME)
		1170	const_iv (FS_XFLAG_PREALLOC)
		1171	const_iv (FS_XFLAG_IMMUTABLE)
		1172	const_iv (FS_XFLAG_APPEND)
		1173	const_iv (FS_XFLAG_SYNC)
		1174	const_iv (FS_XFLAG_NOATIME)
		1175	const_iv (FS_XFLAG_NODUMP)
		1176	const_iv (FS_XFLAG_RTINHERIT)
		1177	const_iv (FS_XFLAG_PROJINHERIT)
		1178	const_iv (FS_XFLAG_NOSYMLINKS)
		1179	const_iv (FS_XFLAG_EXTSIZE)
		1180	const_iv (FS_XFLAG_EXTSZINHERIT)
		1181	const_iv (FS_XFLAG_NODEFRAG)
		1182	const_iv (FS_XFLAG_FILESTREAM)
		1183	const_iv (FS_XFLAG_DAX)
		1184	const_iv (FS_XFLAG_HASATTR)
987		1185
988	const_iv (FIEMAP_FLAG_SYNC)	1186	const_iv (FIEMAP_FLAG_SYNC)
989	const_iv (FIEMAP_FLAG_XATTR)	1187	const_iv (FIEMAP_FLAG_XATTR)
990	const_iv (FIEMAP_FLAGS_COMPAT)	1188	const_iv (FIEMAP_FLAGS_COMPAT)
991	const_iv (FIEMAP_EXTENT_LAST)	1189	const_iv (FIEMAP_EXTENT_LAST)
…		…
1003	const_iv (SPLICE_F_MOVE)	1201	const_iv (SPLICE_F_MOVE)
1004	const_iv (SPLICE_F_NONBLOCK)	1202	const_iv (SPLICE_F_NONBLOCK)
1005	const_iv (SPLICE_F_MORE)	1203	const_iv (SPLICE_F_MORE)
1006	const_iv (SPLICE_F_GIFT)	1204	const_iv (SPLICE_F_GIFT)
1007		1205
1008	const_iv (SEEK_DATA)	1206	const_iv (EFD_CLOEXEC)
		1207	const_iv (EFD_NONBLOCK)
1009	const_iv (SEEK_HOLE)	1208	const_iv (EFD_SEMAPHORE)
1010		1209
1011	/* libeio constants */	1210	const_iv (CLOCK_REALTIME)
		1211	const_iv (CLOCK_MONOTONIC)
		1212	const_iv (CLOCK_BOOTTIME)
		1213	const_iv (CLOCK_REALTIME_ALARM)
		1214	const_iv (CLOCK_BOOTTIME_ALARM)
		1215
		1216	const_iv (TFD_NONBLOCK)
		1217	const_iv (TFD_CLOEXEC)
		1218
		1219	const_iv (TFD_TIMER_ABSTIME)
		1220	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1221
		1222	/* these are libeio constants, and are independent of gendef0 */
1012	const_eio (SEEK_SET)	1223	const_eio (SEEK_SET)
1013	const_eio (SEEK_CUR)	1224	const_eio (SEEK_CUR)
1014	const_eio (SEEK_END)	1225	const_eio (SEEK_END)
1015		1226
1016	const_eio (MCL_FUTURE)	1227	const_eio (MCL_FUTURE)
…		…
1026	const_eio (SYNC_FILE_RANGE_WRITE)	1237	const_eio (SYNC_FILE_RANGE_WRITE)
1027	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1238	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1028		1239
1029	const_eio (FALLOC_FL_KEEP_SIZE)	1240	const_eio (FALLOC_FL_KEEP_SIZE)
1030	const_eio (FALLOC_FL_PUNCH_HOLE)	1241	const_eio (FALLOC_FL_PUNCH_HOLE)
		1242	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1243	const_eio (FALLOC_FL_ZERO_RANGE)
		1244	const_eio (FALLOC_FL_INSERT_RANGE)
		1245	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1246
		1247	const_eio (RENAME_NOREPLACE)
		1248	const_eio (RENAME_EXCHANGE)
		1249	const_eio (RENAME_WHITEOUT)
1031		1250
1032	const_eio (READDIR_DENTS)	1251	const_eio (READDIR_DENTS)
1033	const_eio (READDIR_DIRS_FIRST)	1252	const_eio (READDIR_DIRS_FIRST)
1034	const_eio (READDIR_STAT_ORDER)	1253	const_eio (READDIR_STAT_ORDER)
1035	const_eio (READDIR_FOUND_UNKNOWN)	1254	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1103	PROTOTYPE: $	1322	PROTOTYPE: $
1104	CODE:	1323	CODE:
1105	max_outstanding = maxreqs;	1324	max_outstanding = maxreqs;
1106		1325
1107	void	1326	void
1108	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1327	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1109	PPCODE:	1328	PPCODE:
1110	{	1329	{
1111	dREQ;	1330	dREQ;
1112		1331
1113	req->type = EIO_WD_OPEN;	1332	req->type = EIO_WD_OPEN;
…		…
1115		1334
1116	REQ_SEND;	1335	REQ_SEND;
1117	}	1336	}
1118		1337
1119	void	1338	void
1120	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1339	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1121	PPCODE:	1340	PPCODE:
1122	{	1341	{
1123	dREQ;	1342	dREQ;
1124		1343
1125	req->type = EIO_OPEN;	1344	req->type = EIO_OPEN;
…		…
1129		1348
1130	REQ_SEND;	1349	REQ_SEND;
1131	}	1350	}
1132		1351
1133	void	1352	void
1134	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1353	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1135	ALIAS:	1354	ALIAS:
1136	aio_fsync = EIO_FSYNC	1355	aio_fsync = EIO_FSYNC
1137	aio_fdatasync = EIO_FDATASYNC	1356	aio_fdatasync = EIO_FDATASYNC
1138	aio_syncfs = EIO_SYNCFS	1357	aio_syncfs = EIO_SYNCFS
1139	PPCODE:	1358	PPCODE:
…		…
1147		1366
1148	REQ_SEND;	1367	REQ_SEND;
1149	}	1368	}
1150		1369
1151	void	1370	void
1152	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1371	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1153	PPCODE:	1372	PPCODE:
1154	{	1373	{
1155	int fd = s_fileno_croak (fh, 0);	1374	int fd = s_fileno_croak (fh, 0);
1156	dREQ;	1375	dREQ;
1157		1376
…		…
1164		1383
1165	REQ_SEND;	1384	REQ_SEND;
1166	}	1385	}
1167		1386
1168	void	1387	void
1169	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1388	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1170	PPCODE:	1389	PPCODE:
1171	{	1390	{
1172	int fd = s_fileno_croak (fh, 0);	1391	int fd = s_fileno_croak (fh, 0);
1173	dREQ;	1392	dREQ;
1174		1393
…		…
1181		1400
1182	REQ_SEND;	1401	REQ_SEND;
1183	}	1402	}
1184		1403
1185	void	1404	void
1186	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1405	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1187	PPCODE:	1406	PPCODE:
1188	{	1407	{
1189	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1408	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1190	int fd = s_fileno_croak (fh, 0);	1409	int fd = s_fileno_croak (fh, 0);
1191	dREQ;	1410	dREQ;
…		…
1215		1434
1216	REQ_SEND;	1435	REQ_SEND;
1217	}	1436	}
1218		1437
1219	void	1438	void
1220	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1439	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1221	PPCODE:	1440	PPCODE:
1222	{	1441	{
1223	int fd = s_fileno_croak (fh, 0);	1442	int fd = s_fileno_croak (fh, 0);
1224	dREQ;	1443	dREQ;
1225		1444
…		…
1231		1450
1232	REQ_SEND;	1451	REQ_SEND;
1233	}	1452	}
1234		1453
1235	void	1454	void
1236	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1455	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1237	ALIAS:	1456	ALIAS:
1238	aio_read = EIO_READ	1457	aio_read = EIO_READ
1239	aio_write = EIO_WRITE	1458	aio_write = EIO_WRITE
1240	PPCODE:	1459	PPCODE:
1241	{	1460	{
…		…
1257	len = svlen - dataoffset;	1476	len = svlen - dataoffset;
1258	}	1477	}
1259	else	1478	else
1260	{	1479	{
1261	/* read: check type and grow scalar as necessary */	1480	/* read: check type and grow scalar as necessary */
1262	SvUPGRADE (data, SVt_PV);
1263	if (SvLEN (data) >= SvCUR (data))	1481	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1264	svptr = SvGROW (data, len + dataoffset + 1);	1482	svptr = sv_grow (data, len + dataoffset + 1);
1265	else if (SvCUR (data) < len + dataoffset)	1483	else if (SvCUR (data) < len + dataoffset)
1266	croak ("length + dataoffset outside of scalar, and cannot grow");	1484	croak ("length + dataoffset outside of scalar, and cannot grow");
1267	}	1485	}
1268		1486
1269	{	1487	{
…		…
1287	REQ_SEND;	1505	REQ_SEND;
1288	}	1506	}
1289	}	1507	}
1290		1508
1291	void	1509	void
		1510	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1511	ALIAS:
		1512	aio_ioctl = EIO_IOCTL
		1513	aio_fcntl = EIO_FCNTL
		1514	PPCODE:
		1515	{
		1516	int fd = s_fileno_croak (fh, 0);
		1517	char *svptr;
		1518
		1519	if (SvPOK (arg) || !SvNIOK (arg))
		1520	{
		1521	STRLEN svlen;
		1522	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1523	#ifdef IOCPARM_LEN
		1524	STRLEN need = IOCPARM_LEN (request);
		1525	#else
		1526	STRLEN need = 256;
		1527	#endif
		1528
		1529	if (svlen < need)
		1530	svptr = SvGROW (arg, need);
		1531	}
		1532	else
		1533	svptr = (char *)SvIV (arg);
		1534
		1535	{
		1536	dREQ;
		1537
		1538	req->type = ix;
		1539	req->sv1 = newSVsv (fh);
		1540	req->int1 = fd;
		1541	req->int2 = (long)request;
		1542	req->sv2 = SvREFCNT_inc (arg);
		1543	req->ptr2 = svptr;
		1544
		1545	REQ_SEND;
		1546	}
		1547	}
		1548
		1549	void
1292	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1550	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1293	ALIAS:	1551	ALIAS:
1294	aio_readlink = EIO_READLINK	1552	aio_readlink = EIO_READLINK
1295	aio_realpath = EIO_REALPATH	1553	aio_realpath = EIO_REALPATH
1296	PPCODE:	1554	PPCODE:
1297	{	1555	{
…		…
1302		1560
1303	REQ_SEND;	1561	REQ_SEND;
1304	}	1562	}
1305		1563
1306	void	1564	void
1307	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1565	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1308	PPCODE:	1566	PPCODE:
1309	{	1567	{
1310	int ifd = s_fileno_croak (in_fh , 0);	1568	int ifd = s_fileno_croak (in_fh , 0);
1311	int ofd = s_fileno_croak (out_fh, 1);	1569	int ofd = s_fileno_croak (out_fh, 1);
1312	dREQ;	1570	dREQ;
…		…
1321		1579
1322	REQ_SEND;	1580	REQ_SEND;
1323	}	1581	}
1324		1582
1325	void	1583	void
1326	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1584	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1327	PPCODE:	1585	PPCODE:
1328	{	1586	{
1329	int fd = s_fileno_croak (fh, 0);	1587	int fd = s_fileno_croak (fh, 0);
1330	dREQ;	1588	dREQ;
1331		1589
…		…
1337		1595
1338	REQ_SEND;	1596	REQ_SEND;
1339	}	1597	}
1340		1598
1341	void	1599	void
1342	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1600	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1343	ALIAS:	1601	ALIAS:
1344	aio_stat = EIO_STAT	1602	aio_stat = EIO_STAT
1345	aio_lstat = EIO_LSTAT	1603	aio_lstat = EIO_LSTAT
1346	aio_statvfs = EIO_STATVFS	1604	aio_statvfs = EIO_STATVFS
1347	PPCODE:	1605	PPCODE:
…		…
1356	UV	1614	UV
1357	major (UV dev)	1615	major (UV dev)
1358	ALIAS:	1616	ALIAS:
1359	minor = 1	1617	minor = 1
1360	CODE:	1618	CODE:
1361	RETVAL = ix ? major (dev) : minor (dev);	1619	RETVAL = ix ? minor (dev) : major (dev);
1362	OUTPUT:	1620	OUTPUT:
1363	RETVAL	1621	RETVAL
1364		1622
1365	UV	1623	UV
1366	makedev (UV maj, UV min)	1624	makedev (UV maj, UV min)
…		…
1368	RETVAL = makedev (maj, min);	1626	RETVAL = makedev (maj, min);
1369	OUTPUT:	1627	OUTPUT:
1370	RETVAL	1628	RETVAL
1371		1629
1372	void	1630	void
1373	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1631	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1374	PPCODE:	1632	PPCODE:
1375	{	1633	{
1376	dREQ;	1634	dREQ;
1377		1635
1378	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1636	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1381		1639
1382	REQ_SEND;	1640	REQ_SEND;
1383	}	1641	}
1384		1642
1385	void	1643	void
1386	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1644	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1387	PPCODE:	1645	PPCODE:
1388	{	1646	{
1389	dREQ;	1647	dREQ;
1390		1648
1391	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1649	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1393		1651
1394	REQ_SEND;	1652	REQ_SEND;
1395	}	1653	}
1396		1654
1397	void	1655	void
1398	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1656	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1399	PPCODE:	1657	PPCODE:
1400	{	1658	{
1401	dREQ;	1659	dREQ;
1402		1660
1403	req->int2 = mode;	1661	req->int2 = mode;
…		…
1405		1663
1406	REQ_SEND;	1664	REQ_SEND;
1407	}	1665	}
1408		1666
1409	void	1667	void
1410	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1668	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1411	PPCODE:	1669	PPCODE:
1412	{	1670	{
1413	dREQ;	1671	dREQ;
1414		1672
1415	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1673	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1418		1676
1419	REQ_SEND;	1677	REQ_SEND;
1420	}	1678	}
1421		1679
1422	void	1680	void
1423	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1681	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1424	PPCODE:	1682	PPCODE:
1425	{	1683	{
1426	dREQ;	1684	dREQ;
1427		1685
1428	req->type = EIO_READDIR;	1686	req->type = EIO_READDIR;
…		…
1435		1693
1436	REQ_SEND;	1694	REQ_SEND;
1437	}	1695	}
1438		1696
1439	void	1697	void
1440	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1698	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1441	PPCODE:	1699	PPCODE:
1442	{	1700	{
1443	dREQ;	1701	dREQ;
1444		1702
1445	req->type = EIO_MKDIR;	1703	req->type = EIO_MKDIR;
…		…
1448		1706
1449	REQ_SEND;	1707	REQ_SEND;
1450	}	1708	}
1451		1709
1452	void	1710	void
1453	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1711	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1454	ALIAS:	1712	ALIAS:
1455	aio_unlink = EIO_UNLINK	1713	aio_unlink = EIO_UNLINK
1456	aio_rmdir = EIO_RMDIR	1714	aio_rmdir = EIO_RMDIR
1457	aio_readdir = EIO_READDIR	1715	aio_readdir = EIO_READDIR
1458	PPCODE:	1716	PPCODE:
…		…
1464		1722
1465	REQ_SEND;	1723	REQ_SEND;
1466	}	1724	}
1467		1725
1468	void	1726	void
1469	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1727	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1470	ALIAS:	1728	ALIAS:
1471	aio_link = EIO_LINK	1729	aio_link = EIO_LINK
1472	aio_symlink = EIO_SYMLINK	1730	aio_symlink = EIO_SYMLINK
1473	aio_rename = EIO_RENAME	1731	aio_rename = EIO_RENAME
1474	PPCODE:	1732	PPCODE:
…		…
1483		1741
1484	REQ_SEND;	1742	REQ_SEND;
1485	}	1743	}
1486		1744
1487	void	1745	void
		1746	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1747	PPCODE:
		1748	{
		1749	eio_wd wd2 = 0;
		1750	dREQ;
		1751
		1752	req->type = EIO_RENAME;
		1753	req_set_path1 (req, oldpath);
		1754	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1755	req->int2 = flags;
		1756	req->int3 = (long)wd2;
		1757
		1758	REQ_SEND;
		1759	}
		1760
		1761	void
1488	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1762	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1489	PPCODE:	1763	PPCODE:
1490	{	1764	{
1491	dREQ;	1765	dREQ;
1492		1766
1493	req->type = EIO_MKNOD;	1767	req->type = EIO_MKNOD;
…		…
1497		1771
1498	REQ_SEND;	1772	REQ_SEND;
1499	}	1773	}
1500		1774
1501	void	1775	void
1502	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1776	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1503	ALIAS:	1777	ALIAS:
1504	aio_mtouch = EIO_MTOUCH	1778	aio_mtouch = EIO_MTOUCH
1505	aio_msync = EIO_MSYNC	1779	aio_msync = EIO_MSYNC
1506	PPCODE:	1780	PPCODE:
1507	{	1781	{
1508	STRLEN svlen;	1782	STRLEN svlen;
1509	char *svptr = SvPVbyte (data, svlen);	1783	char *svptr = SvPVbyte (data, svlen);
1510	UV len = SvUV (length);	1784	UV len = SvUV (length);
		1785
		1786	if (flags < 0)
		1787	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1511		1788
1512	if (offset < 0)	1789	if (offset < 0)
1513	offset += svlen;	1790	offset += svlen;
1514		1791
1515	if (offset < 0 || offset > svlen)	1792	if (offset < 0 || offset > svlen)
…		…
1530	REQ_SEND;	1807	REQ_SEND;
1531	}	1808	}
1532	}	1809	}
1533		1810
1534	void	1811	void
1535	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1812	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1536	PPCODE:	1813	PPCODE:
1537	{	1814	{
1538	STRLEN svlen;	1815	STRLEN svlen;
1539	char *svptr = SvPVbyte (data, svlen);	1816	char *svptr = SvPVbyte (data, svlen);
1540	UV len = SvUV (length);	1817	UV len = SvUV (length);
…		…
1559	REQ_SEND;	1836	REQ_SEND;
1560	}	1837	}
1561	}	1838	}
1562		1839
1563	void	1840	void
1564	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1841	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1565	PPCODE:	1842	PPCODE:
1566	{	1843	{
1567	dREQ;	1844	dREQ;
1568		1845
1569	req->type = EIO_MLOCKALL;	1846	req->type = EIO_MLOCKALL;
…		…
1571		1848
1572	REQ_SEND;	1849	REQ_SEND;
1573	}	1850	}
1574		1851
1575	void	1852	void
1576	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1853	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1577	PPCODE:	1854	PPCODE:
1578	{	1855	{
1579	int fd = s_fileno_croak (fh, 0);	1856	int fd = s_fileno_croak (fh, 0);
1580	dREQ;	1857	dREQ;
1581		1858
…		…
1594		1871
1595	REQ_SEND;	1872	REQ_SEND;
1596	}	1873	}
1597		1874
1598	void	1875	void
		1876	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1877	PPCODE:
		1878	{
		1879	char *svptr = 0;
		1880
		1881	sv_clear_foreign (data);
		1882
		1883	if (length) /* known length, directly read into scalar */
		1884	{
		1885	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1886	svptr = sv_grow (data, length + 1);
		1887	else if (SvCUR (data) < length)
		1888	croak ("length outside of scalar, and cannot grow");
		1889	else
		1890	svptr = SvPVbyte_nolen (data);
		1891	}
		1892
		1893	{
		1894	dREQ;
		1895
		1896	req->type = EIO_SLURP;
		1897	req_set_path1 (req, pathname);
		1898	req->offs = offset;
		1899	req->size = length;
		1900	req->sv2 = SvREFCNT_inc (data);
		1901	req->ptr2 = svptr;
		1902
		1903	if (!SvREADONLY (data))
		1904	{
		1905	SvREADONLY_on (data);
		1906	req->flags |= FLAG_SV2_RO_OFF;
		1907	}
		1908
		1909	REQ_SEND;
		1910	}
		1911	}
		1912
		1913	void
1599	aio_busy (double delay, SV *callback=&PL_sv_undef)	1914	aio_busy (double delay, SV *callback = &PL_sv_undef)
1600	PPCODE:	1915	PPCODE:
1601	{	1916	{
1602	dREQ;	1917	dREQ;
1603		1918
1604	req->type = EIO_BUSY;	1919	req->type = EIO_BUSY;
…		…
1606		1921
1607	REQ_SEND;	1922	REQ_SEND;
1608	}	1923	}
1609		1924
1610	void	1925	void
1611	aio_group (SV *callback=&PL_sv_undef)	1926	aio_group (SV *callback = &PL_sv_undef)
1612	PPCODE:	1927	PPCODE:
1613	{	1928	{
1614	dREQ;	1929	dREQ;
1615		1930
1616	req->type = EIO_GROUP;	1931	req->type = EIO_GROUP;
1617		1932
		1933	PUTBACK;
1618	req_submit (req);	1934	req_submit (req);
		1935	SPAGAIN;
		1936
1619	XPUSHs (req_sv (req, aio_grp_stash));	1937	XPUSHs (req_sv (req, aio_grp_stash));
1620	}	1938	}
1621		1939
1622	void	1940	void
1623	aio_nop (SV *callback=&PL_sv_undef)	1941	aio_nop (SV *callback = &PL_sv_undef)
1624	ALIAS:	1942	ALIAS:
1625	aio_nop = EIO_NOP	1943	aio_nop = EIO_NOP
1626	aio_sync = EIO_SYNC	1944	aio_sync = EIO_SYNC
1627	PPCODE:	1945	PPCODE:
1628	{	1946	{
…		…
1632		1950
1633	REQ_SEND;	1951	REQ_SEND;
1634	}	1952	}
1635		1953
1636	int	1954	int
1637	aioreq_pri (int pri = 0)	1955	aioreq_pri (int pri = NO_INIT)
1638	CODE:	1956	CODE:
1639	RETVAL = next_pri;	1957	RETVAL = next_pri;
1640	if (items > 0)	1958	if (items > 0)
1641	{	1959	{
1642	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1960	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1732	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2050	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1733	OUTPUT:	2051	OUTPUT:
1734	RETVAL	2052	RETVAL
1735		2053
1736	void	2054	void
1737	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2055	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1738	PPCODE:	2056	PPCODE:
1739	sv_unmagic (scalar, MMAP_MAGIC);	2057	sv_clear_foreign (scalar);
1740	{	2058	{
1741	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2059	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1742	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2060	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1743	if (addr == (void *)-1)	2061	if (addr == (void *)-1)
1744	XSRETURN_NO;	2062	XSRETURN_NO;
1745		2063
1746	sv_force_normal (scalar);	2064	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1747
1748	/* we store the length in mg_obj, as namlen is I32 :/ */
1749	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1750	->mg_obj = (SV *)length;
1751
1752	SvUPGRADE (scalar, SVt_PV); /* nop... */
1753		2065
1754	if (!(prot & PROT_WRITE))	2066	if (!(prot & PROT_WRITE))
1755	SvREADONLY_on (scalar);	2067	SvREADONLY_on (scalar);
1756		2068
1757	if (SvLEN (scalar))
1758	Safefree (SvPVX (scalar));
1759
1760	SvPVX (scalar) = (char *)addr;
1761	SvCUR_set (scalar, length);
1762	SvLEN_set (scalar, 0);
1763	SvPOK_only (scalar);
1764
1765	XSRETURN_YES;	2069	XSRETURN_YES;
1766	}	2070	}
1767		2071
1768	void	2072	void
1769	munmap (SV *scalar)	2073	munmap (SV *scalar)
1770	CODE:	2074	CODE:
1771	sv_unmagic (scalar, MMAP_MAGIC);	2075	sv_clear_foreign (scalar);
		2076
		2077	SV *
		2078	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2079	CODE:
		2080	{
		2081	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2082	void *new;
		2083
		2084	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2085	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2086
		2087	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2088
		2089	RETVAL = &PL_sv_no;
		2090
		2091	if (new != (void *)-1)
		2092	{
		2093	RETVAL = new == (void *)mg->mg_ptr
		2094	? newSVpvn ("0 but true", 10)
		2095	: &PL_sv_yes;
		2096
		2097	mg->mg_ptr = (char *)new;
		2098	mg->mg_obj = (SV *)new_length;
		2099
		2100	SvPVX (scalar) = mg->mg_ptr;
		2101	SvCUR_set (scalar, new_length);
		2102	}
		2103	}
		2104	OUTPUT:
		2105	RETVAL
1772		2106
1773	int	2107	int
1774	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2108	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1775	ALIAS:	2109	ALIAS:
1776	mprotect = 1	2110	mprotect = 1
1777	CODE:	2111	CODE:
1778	{	2112	{
1779	STRLEN svlen;	2113	STRLEN svlen;
1780	void *addr = SvPVbyte (scalar, svlen);	2114	void *addr = SvPVbyte (scalar, svlen);
1781	size_t len = SvUV (length);	2115	STRLEN len = SvUV (length);
1782		2116
1783	if (offset < 0)	2117	if (offset < 0)
1784	offset += svlen;	2118	offset += svlen;
1785		2119
1786	if (offset < 0 || offset > svlen)	2120	if (offset < 0 || offset > svlen)
…		…
1800	}	2134	}
1801	OUTPUT:	2135	OUTPUT:
1802	RETVAL	2136	RETVAL
1803		2137
1804	int	2138	int
1805	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2139	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1806	CODE:	2140	CODE:
1807	{	2141	{
1808	STRLEN svlen;	2142	STRLEN svlen;
1809	void *addr = SvPVbyte (scalar, svlen);	2143	void *addr = SvPVbyte (scalar, svlen);
1810	size_t len = SvUV (length);	2144	size_t len = SvUV (length);
…		…
1866	#else	2200	#else
1867	RETVAL = EIO_ENOSYS ();	2201	RETVAL = EIO_ENOSYS ();
1868	#endif	2202	#endif
1869	OUTPUT:	2203	OUTPUT:
1870	RETVAL	2204	RETVAL
		2205
		2206	int
		2207	pipesize (aio_rfd rfh, int new_size = -1)
		2208	PROTOTYPE: $;$
		2209	CODE:
		2210	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2211	if (new_size >= 0)
		2212	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2213	else
		2214	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2215	#else
		2216	errno = ENOSYS;
		2217	RETVAL = -1;
		2218	#endif
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	void
		2223	pipe2 (int flags = 0)
		2224	PROTOTYPE: ;$
		2225	PPCODE:
		2226	{
		2227	int fd[2];
		2228	int res;
		2229
		2230	if (flags)
		2231	#if HAVE_PIPE2
		2232	res = pipe2 (fd, flags);
		2233	#else
		2234	res = (errno = ENOSYS, -1);
		2235	#endif
		2236	else
		2237	res = pipe (fd);
		2238
		2239	if (!res)
		2240	{
		2241	EXTEND (SP, 2);
		2242	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2243	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2244	}
		2245	}
		2246
		2247	void
		2248	eventfd (unsigned int initval = 0, int flags = 0)
		2249	PPCODE:
		2250	{
		2251	int fd;
		2252	#if HAVE_EVENTFD
		2253	fd = eventfd (initval, flags);
		2254	#else
		2255	fd = (errno = ENOSYS, -1);
		2256	#endif
		2257
		2258	XPUSHs (newmortalFH (fd, O_RDWR));
		2259	}
		2260
		2261	void
		2262	timerfd_create (int clockid, int flags = 0)
		2263	PPCODE:
		2264	{
		2265	int fd;
		2266	#if HAVE_TIMERFD
		2267	fd = timerfd_create (clockid, flags);
		2268	#else
		2269	fd = (errno = ENOSYS, -1);
		2270	#endif
		2271
		2272	XPUSHs (newmortalFH (fd, O_RDWR));
		2273	}
		2274
		2275	void
		2276	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2277	PPCODE:
		2278	{
		2279	int fd = s_fileno_croak (fh, 0);
		2280	#if HAVE_TIMERFD
		2281	int res;
		2282	struct itimerspec its, ots;
		2283
		2284	ts_set (&its.it_interval, interval);
		2285	ts_set (&its.it_value , value);
		2286	res = timerfd_settime (fd, flags, &its, &ots);
		2287
		2288	if (!res)
		2289	{
		2290	EXTEND (SP, 2);
		2291	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2292	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2293	}
		2294	#else
		2295	errno = ENOSYS;
		2296	#endif
		2297	}
		2298
		2299	void
		2300	timerfd_gettime (SV *fh)
		2301	PPCODE:
		2302	{
		2303	int fd = s_fileno_croak (fh, 0);
		2304	#if HAVE_TIMERFD
		2305	int res;
		2306	struct itimerspec ots;
		2307	res = timerfd_gettime (fd, &ots);
		2308
		2309	if (!res)
		2310	{
		2311	EXTEND (SP, 2);
		2312	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2313	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2314	}
		2315	#else
		2316	errno = ENOSYS;
		2317	#endif
		2318	}
		2319
		2320	UV
		2321	get_fdlimit ()
		2322	CODE:
		2323	#if HAVE_RLIMITS
		2324	struct rlimit rl;
		2325	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2326	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2327	#endif
		2328	XSRETURN_UNDEF;
		2329	OUTPUT:
		2330	RETVAL
		2331
		2332	void
		2333	min_fdlimit (UV limit = 0x7fffffffU)
		2334	CODE:
		2335	{
		2336	#if HAVE_RLIMITS
		2337	struct rlimit rl;
		2338	rlim_t orig_rlim_max;
		2339	UV bit;
		2340
		2341	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2342	goto fail;
		2343
		2344	if (rl.rlim_cur == RLIM_INFINITY)
		2345	XSRETURN_YES;
		2346
		2347	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2348
		2349	if (rl.rlim_cur < limit)
		2350	{
		2351	rl.rlim_cur = limit;
		2352
		2353	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2354	rl.rlim_max = rl.rlim_cur;
		2355	}
		2356
		2357	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2358	XSRETURN_YES;
		2359
		2360	if (errno == EPERM)
		2361	{
		2362	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2363	/* our limit overflows a system-wide limit */
		2364	/* try an adaptive algorithm, but do not lower the hardlimit */
		2365	rl.rlim_max = 0;
		2366	for (bit = 0x40000000U; bit; bit >>= 1)
		2367	{
		2368	rl.rlim_max |= bit;
		2369	rl.rlim_cur = rl.rlim_max;
		2370
		2371	/* nevr decrease the hard limit */
		2372	if (rl.rlim_max < orig_rlim_max)
		2373	break;
		2374
		2375	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2376	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2377	}
		2378
		2379	/* now, raise the soft limit to the max permitted */
		2380	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2381	{
		2382	rl.rlim_cur = rl.rlim_max;
		2383	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2384	errno = EPERM;
		2385	}
		2386	}
		2387	#endif
		2388	fail:
		2389	XSRETURN_UNDEF;
		2390	}
1871		2391
1872	void _on_next_submit (SV *cb)	2392	void _on_next_submit (SV *cb)
1873	CODE:	2393	CODE:
1874	SvREFCNT_dec (on_next_submit);	2394	SvREFCNT_dec (on_next_submit);
1875	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2395	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1910	cancel (aio_req_ornot req)	2430	cancel (aio_req_ornot req)
1911	CODE:	2431	CODE:
1912	eio_cancel (req);	2432	eio_cancel (req);
1913		2433
1914	void	2434	void
1915	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2435	cb (aio_req_ornot req, SV *callback = NO_INIT)
1916	PPCODE:	2436	PPCODE:
1917	{	2437	{
1918	if (GIMME_V != G_VOID)	2438	if (GIMME_V != G_VOID)
1919	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2439	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1920		2440
1921	if (items > 1)	2441	if (items > 1)
1922	{	2442	{
1923	SV *cb_cv =get_cb (callback);	2443	SV *cb_cv = get_cb (callback);
1924		2444
1925	SvREFCNT_dec (req->callback);	2445	SvREFCNT_dec (req->callback);
1926	req->callback = SvREFCNT_inc (cb_cv);	2446	req->callback = SvREFCNT_inc (cb_cv);
1927	}	2447	}
1928	}	2448	}
…		…
1985	limit (aio_req grp, int limit)	2505	limit (aio_req grp, int limit)
1986	CODE:	2506	CODE:
1987	eio_grp_limit (grp, limit);	2507	eio_grp_limit (grp, limit);
1988		2508
1989	void	2509	void
1990	feed (aio_req grp, SV *callback=&PL_sv_undef)	2510	feed (aio_req grp, SV *callback = &PL_sv_undef)
1991	CODE:	2511	CODE:
1992	{	2512	{
1993	SvREFCNT_dec (grp->sv2);	2513	SvREFCNT_dec (grp->sv2);
1994	grp->sv2 = newSVsv (callback);	2514	grp->sv2 = newSVsv (callback);
1995	grp->feed = aio_grp_feed;	2515	grp->feed = aio_grp_feed;

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