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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.223 by root, Tue Aug 28 03:13:33 2012 UTC vs.
Revision 1.274 by root, Sun Mar 10 12:16:48 2019 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_SYS_UIO_H
		123	# include <sys/uio.h>
		124	#endif
		125
		126	#if HAVE_ST_XTIMENSEC
		127	# define ATIMENSEC PL_statcache.st_atimensec
		128	# define MTIMENSEC PL_statcache.st_mtimensec
		129	# define CTIMENSEC PL_statcache.st_ctimensec
		130	#elif HAVE_ST_XTIMESPEC
		131	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		132	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		133	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		134	#else
		135	# define ATIMENSEC 0
		136	# define MTIMENSEC 0
		137	# define CTIMENSEC 0
		138	#endif
		139
		140	#if HAVE_ST_BIRTHTIMENSEC
		141	# define BTIMESEC PL_statcache.st_birthtime
		142	# define BTIMENSEC PL_statcache.st_birthtimensec
		143	#elif HAVE_ST_BIRTHTIMESPEC
		144	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		145	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		146	#else
		147	# define BTIMESEC 0
		148	# define BTIMENSEC 0
		149	#endif
		150
		151	#if HAVE_ST_GEN
		152	# define ST_GEN PL_statcache.st_gen
		153	#else
		154	# define ST_GEN 0
		155	#endif
		156
		157	#include "schmorp.h"
		158
		159	#if HAVE_EVENTFD
		160	# include <sys/eventfd.h>
		161	#endif
		162
		163	#if HAVE_TIMERFD
		164	# include <sys/timerfd.h>
		165	#endif
		166
		167	#if HAVE_RLIMITS
		168	#include <sys/time.h>
		169	#include <sys/resource.h>
		170	#endif
103		171
104	typedef SV SV8; /* byte-sv, used for argument-checking */	172	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	173	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	174	typedef int aio_wfd; /* write file descriptor */
107		175
…		…
114	STRLEN stroffset; \	182	STRLEN stroffset; \
115	SV *self;	183	SV *self;
116		184
117	#define EIO_NO_WRAPPERS 1	185	#define EIO_NO_WRAPPERS 1
118		186
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	187	#include "libeio/eio.h"
121		188
122	static int req_invoke (eio_req *req);	189	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	190	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	191	static void req_destroy (eio_req *grp);
…		…
140	# else	207	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	208	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	209	# endif
143	#endif	210	#endif
144		211
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	212	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	213	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	214	#endif
151	#ifndef major	215	#ifndef major
152	# define major(dev) ((dev) >> 8)	216	# define major(dev) ((dev) >> 8)
153	#endif	217	#endif
154	#ifndef minor	218	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	219	# define minor(dev) ((dev) & 0xff)
156	#endif	220	#endif
157		221
		222	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		223	#ifdef __sun
158	#ifndef PAGESIZE	224	# undef PAGESIZE
		225	#endif
		226
		227	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	228	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	229	#endif
		230
		231	/*****************************************************************************/
		232
		233	#if !_POSIX_MAPPED_FILES
		234	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		235	# define munmap(addr,length) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !_POSIX_MEMORY_PROTECTION
		239	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		240	#endif
		241
		242	#if !MREMAP_MAYMOVE
		243	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		244	#endif
		245
		246	#define FOREIGN_MAGIC PERL_MAGIC_ext
		247
		248	static int ecb_cold
		249	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		250	{
		251	int old_errno = errno;
		252	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		253	errno = old_errno;
		254
		255	mg->mg_obj = 0; /* just in case */
		256
		257	SvREADONLY_off (sv);
		258
		259	if (SvPVX (sv) != mg->mg_ptr)
		260	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		261
		262	SvCUR_set (sv, 0);
		263	SvPVX (sv) = 0;
		264	SvOK_off (sv);
		265
		266	return 0;
		267	}
		268
		269	static MGVTBL mmap_vtbl = {
		270	0, 0, 0, 0, mmap_free
		271	};
		272
		273	static int ecb_cold
		274	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		275	{
		276	free (mg->mg_ptr);
		277	mg->mg_obj = 0; /* just in case */
		278
		279	SvREADONLY_off (sv);
		280
		281	if (SvPVX (sv) != mg->mg_ptr)
		282	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		283
		284	SvCUR_set (sv, 0);
		285	SvPVX (sv) = 0;
		286	SvOK_off (sv);
		287
		288	return 0;
		289	}
		290
		291	static MGVTBL sysfree_vtbl = {
		292	0, 0, 0, 0, sysfree_free
		293	};
		294
		295	/*****************************************************************************/
		296
		297	/* helper: set scalar to foreign ptr with custom free */
		298	static void
		299	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		300	{
		301	sv_force_normal (sv);
		302
		303	/* we store the length in mg_obj, as namlen is I32 :/ */
		304	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		305	->mg_obj = (SV *)length;
		306
		307	SvUPGRADE (sv, SVt_PV); /* nop... */
		308
		309	if (SvLEN (sv))
		310	Safefree (SvPVX (sv));
		311
		312	SvPVX (sv) = (char *)addr;
		313	SvCUR_set (sv, length);
		314	SvLEN_set (sv, 0);
		315	SvPOK_only (sv);
		316	}
		317
		318	static void
		319	sv_clear_foreign (SV *sv)
		320	{
		321	/* todo: iterate over magic and only free ours, but of course */
		322	/* the perl5porters will call that (correct) behaviour buggy */
		323	sv_unmagic (sv, FOREIGN_MAGIC);
		324	}
		325
		326	/*****************************************************************************/
		327
		328	/* defines all sorts of constants to 0 unless they are already defined */
		329	/* also provides const_iv_ and const_niv_ macros for them */
		330	#include "def0.h"
161		331
162	/*****************************************************************************/	332	/*****************************************************************************/
163		333
164	static void	334	static void
165	fiemap (eio_req *req)	335	fiemap (eio_req *req)
…		…
198	|| !fiemap->fm_mapped_extents /* no more extents */	368	|| !fiemap->fm_mapped_extents /* no more extents */
199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)	369	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200	goto done;	370	goto done;
201		371
202	/* else we have to loop -	372	/* else we have to loop -
203	* it would be tempting (atcually I tried that first) to just query the	373	* 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	374	* number of extents needed, but linux often feels like not returning all
205	* extents, without telling us it left any out. this complicates	375	* extents, without telling us it left any out. this complicates
206	* this quite a bit.	376	* this quite a bit.
207	*/	377	*/
208		378
…		…
221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);	391	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
222		392
223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)	393	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
224	return;	394	return;
225		395
		396	if (!incmap->fm_mapped_extents)
		397	goto done;
		398
226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;	399	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	400	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228	errno = ENOMEM;	401	errno = ENOMEM;
229	if (!fiemap)	402	if (!fiemap)
230	return;	403	return;
…		…
254	#endif	427	#endif
255	}	428	}
256		429
257	/*****************************************************************************/	430	/*****************************************************************************/
258		431
		432	static int close_fd; /* dummy fd to close fds via dup2 */
		433
259	enum {	434	enum {
260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	435	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
261	};	436	};
262		437
263	typedef eio_req *aio_req;	438	typedef eio_req *aio_req;
…		…
301	}	476	}
302		477
303	static SV *	478	static SV *
304	newSVaio_wd (aio_wd wd)	479	newSVaio_wd (aio_wd wd)
305	{	480	{
306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	481	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
307	}	482	}
308		483
309	static aio_req	484	static aio_req
310	SvAIO_REQ (SV *sv)	485	SvAIO_REQ (SV *sv)
311	{	486	{
…		…
330	|| SvTYPE (SvRV (sv)) != SVt_PVMG	505	|| SvTYPE (SvRV (sv)) != SVt_PVMG
331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	506	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	507	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333		508
334	return (aio_wd)(long)SvIVX (SvRV (sv));	509	return (aio_wd)(long)SvIVX (SvRV (sv));
		510	}
		511
		512	static SV *
		513	newmortalFH (int fd, int flags)
		514	{
		515	if (fd < 0)
		516	return &PL_sv_undef;
		517
		518	GV *gv = (GV *)sv_newmortal ();
		519	char sym[64];
		520	int symlen;
		521
		522	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		523	gv_init (gv, aio_stash, sym, symlen, 0);
		524
		525	symlen = snprintf (
		526	sym,
		527	sizeof (sym),
		528	"%s&=%d",
		529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		530	fd
		531	);
		532
		533	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		534	? (SV *)gv : &PL_sv_undef;
335	}	535	}
336		536
337	static void	537	static void
338	aio_grp_feed (aio_req grp)	538	aio_grp_feed (aio_req grp)
339	{	539	{
…		…
467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	667	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
468	}	668	}
469	break;	669	break;
470		670
471	case EIO_OPEN:	671	case EIO_OPEN:
472	{	672	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;	673	break;
501		674
502	case EIO_STATVFS:	675	case EIO_STATVFS:
503	case EIO_FSTATVFS:	676	case EIO_FSTATVFS:
504	{	677	{
…		…
507	#ifndef _WIN32	680	#ifndef _WIN32
508	if (req->result >= 0)	681	if (req->result >= 0)
509	{	682	{
510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	683	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
511	HV *hv = newHV ();	684	HV *hv = newHV ();
		685	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		686	* chooses to make it a struct.
		687	*/
		688	unsigned long fsid = 0;
		689	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
512		690
513	rv = sv_2mortal (newRV_noinc ((SV *)hv));	691	rv = sv_2mortal (newRV_noinc ((SV *)hv));
514		692
515	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	693	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
516	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	694	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
518	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	696	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
519	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	697	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
520	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	698	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
521	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	699	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
522	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	700	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
523	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	701	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
524	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	702	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
525	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	703	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
526	}	704	}
527	#endif	705	#endif
528		706
…		…
579	SvSETMAGIC (req->sv2);	757	SvSETMAGIC (req->sv2);
580	PUSHs (sv_result);	758	PUSHs (sv_result);
581	}	759	}
582	break;	760	break;
583		761
		762	case EIO_SLURP:
		763	{
		764	if (req->result >= 0)
		765	{
		766	/* if length was originally not known, we steal the malloc'ed memory */
		767	if (req->flags & EIO_FLAG_PTR2_FREE)
		768	{
		769	req->flags &= ~EIO_FLAG_PTR2_FREE;
		770	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		771	}
		772	else
		773	{
		774	SvCUR_set (req->sv2, req->result);
		775	*SvEND (req->sv2) = 0;
		776	SvPOK_only (req->sv2);
		777	}
		778
		779	SvSETMAGIC (req->sv2);
		780	}
		781
		782	PUSHs (sv_result);
		783	}
		784	break;
		785
584	case EIO_CUSTOM:	786	case EIO_CUSTOM:
585	if (req->feed == fiemap)	787	if (req->feed == fiemap)
586	{	788	{
587	#if HAVE_FIEMAP	789	#if HAVE_FIEMAP
588	if (!req->result)	790	if (!req->result)
…		…
619	}	821	}
620	else	822	else
621	PUSHs (sv_result);	823	PUSHs (sv_result);
622	break;	824	break;
623		825
		826	#if 0
		827	case EIO_CLOSE:
		828	PerlIOUnix_refcnt_dec (req->int1);
		829	break;
		830	#endif
		831
624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	832	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
625	if (req->result > 0)	833	if (req->result > 0)
626	SvIV_set (sv_result, 0);	834	SvIV_set (sv_result, 0);
627	/* FALLTHROUGH */	835	/* FALLTHROUGH */
628		836
…		…
693	{	901	{
694	while (eio_nreqs ())	902	while (eio_nreqs ())
695	{	903	{
696	int size;	904	int size;
697		905
698	X_LOCK (reslock);	906	X_LOCK (EIO_POOL->reslock);
699	size = res_queue.size;	907	size = EIO_POOL->res_queue.size;
700	X_UNLOCK (reslock);	908	X_UNLOCK (EIO_POOL->reslock);
701		909
702	if (size)	910	if (size)
703	return;	911	return;
704		912
705	etp_maybe_start_thread ();	913	etp_maybe_start_thread (EIO_POOL);
706		914
707	s_epipe_wait (&respipe);	915	s_epipe_wait (&respipe);
708	}	916	}
709	}	917	}
710		918
…		…
731	create_respipe ();	939	create_respipe ();
732		940
733	if (eio_init (want_poll, done_poll) < 0)	941	if (eio_init (want_poll, done_poll) < 0)
734	croak ("IO::AIO: unable to initialise eio library");	942	croak ("IO::AIO: unable to initialise eio library");
735	}	943	}
736
737	/*****************************************************************************/
738
739	#if !_POSIX_MAPPED_FILES
740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
741	# define munmap(addr,length) EIO_ENOSYS ()
742	#endif
743
744	#if !_POSIX_MEMORY_PROTECTION
745	# define mprotect(addr,len,prot) EIO_ENOSYS ()
746	# define PROT_NONE 0
747	# define PROT_WRITE 0
748	# define MAP_PRIVATE 0
749	# define MAP_SHARED 0
750	# define MAP_FIXED 0
751	#endif
752
753	#define MMAP_MAGIC PERL_MAGIC_ext
754
755	static int ecb_cold
756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
757	{
758	int old_errno = errno;
759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
760	errno = old_errno;
761
762	mg->mg_obj = 0; /* just in case */
763
764	SvREADONLY_off (sv);
765
766	if (SvPVX (sv) != mg->mg_ptr)
767	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
768
769	SvCUR_set (sv, 0);
770	SvPVX (sv) = 0;
771	SvOK_off (sv);
772
773	return 0;
774	}
775
776	static MGVTBL mmap_vtbl = {
777	0, 0, 0, 0, mmap_free
778	};
779		944
780	/*****************************************************************************/	945	/*****************************************************************************/
781		946
782	static SV *	947	static SV *
783	get_cb (SV *cb_sv)	948	get_cb (SV *cb_sv)
…		…
879	req_set_path1 (req, fh_or_path);	1044	req_set_path1 (req, fh_or_path);
880	break;	1045	break;
881	}	1046	}
882	}	1047	}
883		1048
		1049	/*****************************************************************************/
		1050
		1051	static void
		1052	ts_set (struct timespec *ts, NV value)
		1053	{
		1054	ts->tv_sec = value;
		1055	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1056	}
		1057
		1058	static NV
		1059	ts_get (const struct timespec *ts)
		1060	{
		1061	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1062	}
		1063
		1064	/*****************************************************************************/
		1065
884	XS(boot_IO__AIO) ecb_cold;	1066	XS(boot_IO__AIO) ecb_cold;
885		1067
886	MODULE = IO::AIO PACKAGE = IO::AIO	1068	MODULE = IO::AIO PACKAGE = IO::AIO
887		1069
888	PROTOTYPES: ENABLE	1070	PROTOTYPES: ENABLE
…		…
895	} *civ, const_iv[] = {	1077	} *civ, const_iv[] = {
896	# define const_niv(name, value) { # name, (IV) value },	1078	# define const_niv(name, value) { # name, (IV) value },
897	# define const_iv(name) { # name, (IV) name },	1079	# define const_iv(name) { # name, (IV) name },
898	# define const_eio(name) { # name, (IV) EIO_ ## name },	1080	# define const_eio(name) { # name, (IV) EIO_ ## name },
899		1081
900	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1082	/* you have to re-run ./gendef0 after adding/removing any constants here */
901		1083	/* the first block can be undef if missing */
902	const_iv (ENOSYS)	1084	const_iv (ENOSYS)
903	const_iv (EXDEV)	1085	const_iv (EXDEV)
904	const_iv (EBADR)	1086	const_iv (EBADR)
		1087
		1088	/* for lseek */
		1089	const_iv (SEEK_DATA)
		1090	const_iv (SEEK_HOLE)
		1091
		1092	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1093	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1094	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1095	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1096	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1097	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1098
		1099	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1100	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1101	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1102	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1103	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1104
		1105	/* the second block will be 0 when missing */
		1106	const_iv (O_ACCMODE)
905		1107
906	const_iv (O_RDONLY)	1108	const_iv (O_RDONLY)
907	const_iv (O_WRONLY)	1109	const_iv (O_WRONLY)
908	const_iv (O_RDWR)	1110	const_iv (O_RDWR)
909	const_iv (O_CREAT)	1111	const_iv (O_CREAT)
…		…
923	const_iv (O_SEARCH)	1125	const_iv (O_SEARCH)
924	const_iv (O_DIRECTORY)	1126	const_iv (O_DIRECTORY)
925	const_iv (O_DSYNC)	1127	const_iv (O_DSYNC)
926	const_iv (O_RSYNC)	1128	const_iv (O_RSYNC)
927	const_iv (O_SYNC)	1129	const_iv (O_SYNC)
		1130	const_iv (O_PATH)
		1131	const_iv (O_TMPFILE)
928	const_iv (O_TTY_INIT)	1132	const_iv (O_TTY_INIT)
929		1133
930	const_iv (S_IFIFO)	1134	const_iv (S_IFIFO)
931	const_iv (S_IFCHR)	1135	const_iv (S_IFCHR)
932	const_iv (S_IFBLK)	1136	const_iv (S_IFBLK)
…		…
934	const_iv (S_IFREG)	1138	const_iv (S_IFREG)
935	const_iv (S_IFDIR)	1139	const_iv (S_IFDIR)
936	const_iv (S_IFWHT)	1140	const_iv (S_IFWHT)
937	const_iv (S_IFSOCK)	1141	const_iv (S_IFSOCK)
938	const_iv (S_IFMT)	1142	const_iv (S_IFMT)
939
940	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
941	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
942	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
943	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
944	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
945	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
946
947	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
948	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
949	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
950	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
951	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
952		1143
953	const_iv (ST_RDONLY)	1144	const_iv (ST_RDONLY)
954	const_iv (ST_NOSUID)	1145	const_iv (ST_NOSUID)
955	const_iv (ST_NODEV)	1146	const_iv (ST_NODEV)
956	const_iv (ST_NOEXEC)	1147	const_iv (ST_NOEXEC)
…		…
966	const_iv (PROT_NONE)	1157	const_iv (PROT_NONE)
967	const_iv (PROT_EXEC)	1158	const_iv (PROT_EXEC)
968	const_iv (PROT_READ)	1159	const_iv (PROT_READ)
969	const_iv (PROT_WRITE)	1160	const_iv (PROT_WRITE)
970		1161
971	/*const_iv (MAP_FIXED)*/
972	const_iv (MAP_PRIVATE)	1162	const_iv (MAP_PRIVATE)
973	const_iv (MAP_SHARED)	1163	const_iv (MAP_SHARED)
		1164	const_iv (MAP_FIXED)
974	const_iv (MAP_ANONYMOUS)	1165	const_iv (MAP_ANONYMOUS)
975		1166
976	/* linuxish */	1167	/* linuxish */
977	const_iv (MAP_HUGETLB)
978	const_iv (MAP_LOCKED)	1168	const_iv (MAP_LOCKED)
979	const_iv (MAP_NORESERVE)	1169	const_iv (MAP_NORESERVE)
980	const_iv (MAP_POPULATE)	1170	const_iv (MAP_POPULATE)
981	const_iv (MAP_NONBLOCK)	1171	const_iv (MAP_NONBLOCK)
		1172	const_iv (MAP_GROWSDOWN)
		1173	const_iv (MAP_32BIT)
		1174	const_iv (MAP_HUGETLB)
		1175	const_iv (MAP_STACK)
		1176
		1177	const_iv (MREMAP_MAYMOVE)
		1178	const_iv (MREMAP_FIXED)
		1179
		1180	const_iv (F_DUPFD_CLOEXEC)
		1181
		1182	const_iv (MSG_CMSG_CLOEXEC)
		1183	const_iv (SOCK_CLOEXEC)
		1184
		1185	const_iv (F_OFD_GETLK)
		1186	const_iv (F_OFD_SETLK)
		1187	const_iv (F_OFD_GETLKW)
		1188
		1189	const_iv (FIFREEZE)
		1190	const_iv (FITHAW)
		1191	const_iv (FITRIM)
		1192	const_iv (FICLONE)
		1193	const_iv (FICLONERANGE)
		1194	const_iv (FIDEDUPERANGE)
		1195
		1196	const_iv (FS_IOC_GETFLAGS)
		1197	const_iv (FS_IOC_SETFLAGS)
		1198	const_iv (FS_IOC_GETVERSION)
		1199	const_iv (FS_IOC_SETVERSION)
		1200	const_iv (FS_IOC_FIEMAP)
		1201	const_iv (FS_IOC_FSGETXATTR)
		1202	const_iv (FS_IOC_FSSETXATTR)
		1203	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1204	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1205	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1206
		1207	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1208
		1209	const_iv (FS_SECRM_FL)
		1210	const_iv (FS_UNRM_FL)
		1211	const_iv (FS_COMPR_FL)
		1212	const_iv (FS_SYNC_FL)
		1213	const_iv (FS_IMMUTABLE_FL)
		1214	const_iv (FS_APPEND_FL)
		1215	const_iv (FS_NODUMP_FL)
		1216	const_iv (FS_NOATIME_FL)
		1217	const_iv (FS_DIRTY_FL)
		1218	const_iv (FS_COMPRBLK_FL)
		1219	const_iv (FS_NOCOMP_FL)
		1220	const_iv (FS_ENCRYPT_FL)
		1221	const_iv (FS_BTREE_FL)
		1222	const_iv (FS_INDEX_FL)
		1223	const_iv (FS_JOURNAL_DATA_FL)
		1224	const_iv (FS_NOTAIL_FL)
		1225	const_iv (FS_DIRSYNC_FL)
		1226	const_iv (FS_TOPDIR_FL)
		1227	const_iv (FS_FL_USER_MODIFIABLE)
		1228
		1229	const_iv (FS_XFLAG_REALTIME)
		1230	const_iv (FS_XFLAG_PREALLOC)
		1231	const_iv (FS_XFLAG_IMMUTABLE)
		1232	const_iv (FS_XFLAG_APPEND)
		1233	const_iv (FS_XFLAG_SYNC)
		1234	const_iv (FS_XFLAG_NOATIME)
		1235	const_iv (FS_XFLAG_NODUMP)
		1236	const_iv (FS_XFLAG_RTINHERIT)
		1237	const_iv (FS_XFLAG_PROJINHERIT)
		1238	const_iv (FS_XFLAG_NOSYMLINKS)
		1239	const_iv (FS_XFLAG_EXTSIZE)
		1240	const_iv (FS_XFLAG_EXTSZINHERIT)
		1241	const_iv (FS_XFLAG_NODEFRAG)
		1242	const_iv (FS_XFLAG_FILESTREAM)
		1243	const_iv (FS_XFLAG_DAX)
		1244	const_iv (FS_XFLAG_HASATTR)
982		1245
983	const_iv (FIEMAP_FLAG_SYNC)	1246	const_iv (FIEMAP_FLAG_SYNC)
984	const_iv (FIEMAP_FLAG_XATTR)	1247	const_iv (FIEMAP_FLAG_XATTR)
985	const_iv (FIEMAP_FLAGS_COMPAT)	1248	const_iv (FIEMAP_FLAGS_COMPAT)
986	const_iv (FIEMAP_EXTENT_LAST)	1249	const_iv (FIEMAP_EXTENT_LAST)
…		…
998	const_iv (SPLICE_F_MOVE)	1261	const_iv (SPLICE_F_MOVE)
999	const_iv (SPLICE_F_NONBLOCK)	1262	const_iv (SPLICE_F_NONBLOCK)
1000	const_iv (SPLICE_F_MORE)	1263	const_iv (SPLICE_F_MORE)
1001	const_iv (SPLICE_F_GIFT)	1264	const_iv (SPLICE_F_GIFT)
1002		1265
1003	const_iv (SEEK_DATA)	1266	const_iv (EFD_CLOEXEC)
		1267	const_iv (EFD_NONBLOCK)
1004	const_iv (SEEK_HOLE)	1268	const_iv (EFD_SEMAPHORE)
1005		1269
1006	/* libeio constants */	1270	const_iv (CLOCK_REALTIME)
		1271	const_iv (CLOCK_MONOTONIC)
		1272	const_iv (CLOCK_BOOTTIME)
		1273	const_iv (CLOCK_REALTIME_ALARM)
		1274	const_iv (CLOCK_BOOTTIME_ALARM)
		1275
		1276	const_iv (TFD_NONBLOCK)
		1277	const_iv (TFD_CLOEXEC)
		1278
		1279	const_iv (TFD_TIMER_ABSTIME)
		1280	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1281
		1282	/* these are libeio constants, and are independent of gendef0 */
1007	const_eio (SEEK_SET)	1283	const_eio (SEEK_SET)
1008	const_eio (SEEK_CUR)	1284	const_eio (SEEK_CUR)
1009	const_eio (SEEK_END)	1285	const_eio (SEEK_END)
1010		1286
1011	const_eio (MCL_FUTURE)	1287	const_eio (MCL_FUTURE)
1012	const_eio (MCL_CURRENT)	1288	const_eio (MCL_CURRENT)
		1289	const_eio (MCL_ONFAULT)
1013		1290
1014	const_eio (MS_ASYNC)	1291	const_eio (MS_ASYNC)
1015	const_eio (MS_INVALIDATE)	1292	const_eio (MS_INVALIDATE)
1016	const_eio (MS_SYNC)	1293	const_eio (MS_SYNC)
1017		1294
…		…
1021	const_eio (SYNC_FILE_RANGE_WRITE)	1298	const_eio (SYNC_FILE_RANGE_WRITE)
1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1299	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1023		1300
1024	const_eio (FALLOC_FL_KEEP_SIZE)	1301	const_eio (FALLOC_FL_KEEP_SIZE)
1025	const_eio (FALLOC_FL_PUNCH_HOLE)	1302	const_eio (FALLOC_FL_PUNCH_HOLE)
		1303	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1304	const_eio (FALLOC_FL_ZERO_RANGE)
		1305	const_eio (FALLOC_FL_INSERT_RANGE)
		1306	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1307
		1308	const_eio (RENAME_NOREPLACE)
		1309	const_eio (RENAME_EXCHANGE)
		1310	const_eio (RENAME_WHITEOUT)
1026		1311
1027	const_eio (READDIR_DENTS)	1312	const_eio (READDIR_DENTS)
1028	const_eio (READDIR_DIRS_FIRST)	1313	const_eio (READDIR_DIRS_FIRST)
1029	const_eio (READDIR_STAT_ORDER)	1314	const_eio (READDIR_STAT_ORDER)
1030	const_eio (READDIR_FOUND_UNKNOWN)	1315	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1333	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1334	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1050		1335
1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1336	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1052		1337
		1338	/* allocate dummy pipe fd for aio_close */
		1339	{
		1340	int pipefd [2];
		1341
		1342	if (
		1343	#ifdef _WIN32
		1344	_pipe (pipefd, 1, _O_BINARY) < 0
		1345	#else
		1346	pipe (pipefd) < 0
		1347	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1348	#endif
		1349	|| close (pipefd [1]) < 0
		1350	)
		1351	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1352
		1353	close_fd = pipefd [0];
		1354	}
		1355
1053	reinit ();	1356	reinit ();
1054	}	1357	}
1055		1358
1056	void	1359	void
1057	reinit ()	1360	reinit ()
…		…
1098	PROTOTYPE: $	1401	PROTOTYPE: $
1099	CODE:	1402	CODE:
1100	max_outstanding = maxreqs;	1403	max_outstanding = maxreqs;
1101		1404
1102	void	1405	void
1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1406	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1104	PPCODE:	1407	PPCODE:
1105	{	1408	{
1106	dREQ;	1409	dREQ;
1107		1410
1108	req->type = EIO_WD_OPEN;	1411	req->type = EIO_WD_OPEN;
…		…
1110		1413
1111	REQ_SEND;	1414	REQ_SEND;
1112	}	1415	}
1113		1416
1114	void	1417	void
1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1418	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1116	PPCODE:	1419	PPCODE:
1117	{	1420	{
1118	dREQ;	1421	dREQ;
1119		1422
1120	req->type = EIO_OPEN;	1423	req->type = EIO_OPEN;
…		…
1124		1427
1125	REQ_SEND;	1428	REQ_SEND;
1126	}	1429	}
1127		1430
1128	void	1431	void
1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1432	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1130	ALIAS:	1433	ALIAS:
1131	aio_fsync = EIO_FSYNC	1434	aio_fsync = EIO_FSYNC
1132	aio_fdatasync = EIO_FDATASYNC	1435	aio_fdatasync = EIO_FDATASYNC
1133	aio_syncfs = EIO_SYNCFS	1436	aio_syncfs = EIO_SYNCFS
1134	PPCODE:	1437	PPCODE:
…		…
1142		1445
1143	REQ_SEND;	1446	REQ_SEND;
1144	}	1447	}
1145		1448
1146	void	1449	void
1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1450	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1148	PPCODE:	1451	PPCODE:
1149	{	1452	{
1150	int fd = s_fileno_croak (fh, 0);	1453	int fd = s_fileno_croak (fh, 0);
1151	dREQ;	1454	dREQ;
1152		1455
…		…
1159		1462
1160	REQ_SEND;	1463	REQ_SEND;
1161	}	1464	}
1162		1465
1163	void	1466	void
1164	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1467	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1165	PPCODE:	1468	PPCODE:
1166	{	1469	{
1167	int fd = s_fileno_croak (fh, 0);	1470	int fd = s_fileno_croak (fh, 0);
1168	dREQ;	1471	dREQ;
1169		1472
…		…
1176		1479
1177	REQ_SEND;	1480	REQ_SEND;
1178	}	1481	}
1179		1482
1180	void	1483	void
1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1484	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1182	PPCODE:	1485	PPCODE:
1183	{	1486	{
1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1185	int fd = s_fileno_croak (fh, 0);	1487	int fd = s_fileno_croak (fh, 0);
1186	dREQ;	1488	dREQ;
		1489	#if 0
		1490	/* partially duplicate logic in s_fileno */
		1491	SvGETMAGIC (fh);
1187		1492
1188	if (expect_false (close_fd < 0))	1493	if (SvROK (fh))
		1494	{
		1495	fh = SvRV (fh);
		1496	SvGETMAGIC (fh);
		1497	}
		1498
		1499	if (SvTYPE (fh) == SVt_PVGV)
1189	{	1500	{
1190	int pipefd [2];	1501	/* perl filehandle */
		1502	PerlIOUnix_refcnt_inc (fd);
		1503	do_close ((GV *)fh, 1);
1191		1504
1192	if (	1505	req->type = EIO_CLOSE;
1193	#ifdef _WIN32	1506	req->int1 = fd;
1194	_pipe (pipefd, 1, _O_BINARY) < 0	1507	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1195	#else
1196	pipe (pipefd) < 0
1197	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1198	#endif
1199	|| close (pipefd [1]) < 0
1200	)
1201	abort (); /*D*/
1202
1203	close_fd = pipefd [0];
1204	}	1508	}
1205		1509	else
		1510	#endif
		1511	{
		1512	/* fd number */
1206	req->type = EIO_DUP2;	1513	req->type = EIO_DUP2;
1207	req->int1 = close_fd;	1514	req->int1 = close_fd;
1208	req->sv2 = newSVsv (fh);	1515	req->sv2 = newSVsv (fh);
1209	req->int2 = fd;	1516	req->int2 = fd;
		1517	}
1210		1518
1211	REQ_SEND;	1519	REQ_SEND;
1212	}	1520	}
1213		1521
1214	void	1522	void
1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1523	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1216	PPCODE:	1524	PPCODE:
1217	{	1525	{
1218	int fd = s_fileno_croak (fh, 0);	1526	int fd = s_fileno_croak (fh, 0);
1219	dREQ;	1527	dREQ;
1220		1528
…		…
1226		1534
1227	REQ_SEND;	1535	REQ_SEND;
1228	}	1536	}
1229		1537
1230	void	1538	void
1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1539	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1232	ALIAS:	1540	ALIAS:
1233	aio_read = EIO_READ	1541	aio_read = EIO_READ
1234	aio_write = EIO_WRITE	1542	aio_write = EIO_WRITE
1235	PPCODE:	1543	PPCODE:
1236	{	1544	{
…		…
1252	len = svlen - dataoffset;	1560	len = svlen - dataoffset;
1253	}	1561	}
1254	else	1562	else
1255	{	1563	{
1256	/* read: check type and grow scalar as necessary */	1564	/* read: check type and grow scalar as necessary */
1257	SvUPGRADE (data, SVt_PV);
1258	if (SvLEN (data) >= SvCUR (data))	1565	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1259	svptr = SvGROW (data, len + dataoffset + 1);	1566	svptr = sv_grow (data, len + dataoffset + 1);
1260	else if (SvCUR (data) < len + dataoffset)	1567	else if (SvCUR (data) < len + dataoffset)
1261	croak ("length + dataoffset outside of scalar, and cannot grow");	1568	croak ("length + dataoffset outside of scalar, and cannot grow");
1262	}	1569	}
1263		1570
1264	{	1571	{
…		…
1282	REQ_SEND;	1589	REQ_SEND;
1283	}	1590	}
1284	}	1591	}
1285		1592
1286	void	1593	void
		1594	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1595	ALIAS:
		1596	aio_ioctl = EIO_IOCTL
		1597	aio_fcntl = EIO_FCNTL
		1598	PPCODE:
		1599	{
		1600	int fd = s_fileno_croak (fh, 0);
		1601	char *svptr;
		1602
		1603	if (SvPOK (arg) || !SvNIOK (arg))
		1604	{
		1605	STRLEN svlen;
		1606	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1607	#ifdef IOCPARM_LEN
		1608	STRLEN need = IOCPARM_LEN (request);
		1609	#else
		1610	STRLEN need = 256;
		1611	#endif
		1612
		1613	if (svlen < need)
		1614	svptr = SvGROW (arg, need);
		1615	}
		1616	else
		1617	svptr = (char *)SvIV (arg);
		1618
		1619	{
		1620	dREQ;
		1621
		1622	req->type = ix;
		1623	req->sv1 = newSVsv (fh);
		1624	req->int1 = fd;
		1625	req->int2 = (long)request;
		1626	req->sv2 = SvREFCNT_inc (arg);
		1627	req->ptr2 = svptr;
		1628
		1629	REQ_SEND;
		1630	}
		1631	}
		1632
		1633	void
1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1634	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1288	ALIAS:	1635	ALIAS:
1289	aio_readlink = EIO_READLINK	1636	aio_readlink = EIO_READLINK
1290	aio_realpath = EIO_REALPATH	1637	aio_realpath = EIO_REALPATH
1291	PPCODE:	1638	PPCODE:
1292	{	1639	{
…		…
1297		1644
1298	REQ_SEND;	1645	REQ_SEND;
1299	}	1646	}
1300		1647
1301	void	1648	void
1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1649	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1303	PPCODE:	1650	PPCODE:
1304	{	1651	{
1305	int ifd = s_fileno_croak (in_fh , 0);	1652	int ifd = s_fileno_croak (in_fh , 0);
1306	int ofd = s_fileno_croak (out_fh, 1);	1653	int ofd = s_fileno_croak (out_fh, 1);
1307	dREQ;	1654	dREQ;
…		…
1316		1663
1317	REQ_SEND;	1664	REQ_SEND;
1318	}	1665	}
1319		1666
1320	void	1667	void
1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1668	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1322	PPCODE:	1669	PPCODE:
1323	{	1670	{
1324	int fd = s_fileno_croak (fh, 0);	1671	int fd = s_fileno_croak (fh, 0);
1325	dREQ;	1672	dREQ;
1326		1673
…		…
1332		1679
1333	REQ_SEND;	1680	REQ_SEND;
1334	}	1681	}
1335		1682
1336	void	1683	void
1337	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1684	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1338	ALIAS:	1685	ALIAS:
1339	aio_stat = EIO_STAT	1686	aio_stat = EIO_STAT
1340	aio_lstat = EIO_LSTAT	1687	aio_lstat = EIO_LSTAT
1341	aio_statvfs = EIO_STATVFS	1688	aio_statvfs = EIO_STATVFS
1342	PPCODE:	1689	PPCODE:
…		…
1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1693	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1347		1694
1348	REQ_SEND;	1695	REQ_SEND;
1349	}	1696	}
1350		1697
		1698	void
		1699	st_xtime ()
		1700	ALIAS:
		1701	st_atime = 0x01
		1702	st_mtime = 0x02
		1703	st_ctime = 0x04
		1704	st_btime = 0x08
		1705	st_xtime = 0x0f
		1706	PPCODE:
		1707	EXTEND (SP, 4);
		1708	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1709	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1710	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1711	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1712
		1713	void
		1714	st_xtimensec ()
		1715	ALIAS:
		1716	st_atimensec = 0x01
		1717	st_mtimensec = 0x02
		1718	st_ctimensec = 0x04
		1719	st_btimensec = 0x08
		1720	st_xtimensec = 0x0f
		1721	st_btimesec = 0x10
		1722	st_gen = 0x20
		1723	PPCODE:
		1724	EXTEND (SP, 4);
		1725	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1726	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1727	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1728	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1729	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1730	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1731
1351	UV	1732	UV
1352	major (UV dev)	1733	major (UV dev)
1353	ALIAS:	1734	ALIAS:
1354	minor = 1	1735	minor = 1
1355	CODE:	1736	CODE:
1356	RETVAL = ix ? major (dev) : minor (dev);	1737	RETVAL = ix ? minor (dev) : major (dev);
1357	OUTPUT:	1738	OUTPUT:
1358	RETVAL	1739	RETVAL
1359		1740
1360	UV	1741	UV
1361	makedev (UV maj, UV min)	1742	makedev (UV maj, UV min)
…		…
1363	RETVAL = makedev (maj, min);	1744	RETVAL = makedev (maj, min);
1364	OUTPUT:	1745	OUTPUT:
1365	RETVAL	1746	RETVAL
1366		1747
1367	void	1748	void
1368	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1749	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1369	PPCODE:	1750	PPCODE:
1370	{	1751	{
1371	dREQ;	1752	dREQ;
1372		1753
1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1376		1757
1377	REQ_SEND;	1758	REQ_SEND;
1378	}	1759	}
1379		1760
1380	void	1761	void
1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1762	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1382	PPCODE:	1763	PPCODE:
1383	{	1764	{
1384	dREQ;	1765	dREQ;
1385		1766
1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1767	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1388		1769
1389	REQ_SEND;	1770	REQ_SEND;
1390	}	1771	}
1391		1772
1392	void	1773	void
1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1774	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1394	PPCODE:	1775	PPCODE:
1395	{	1776	{
1396	dREQ;	1777	dREQ;
1397		1778
1398	req->int2 = mode;	1779	req->int2 = mode;
…		…
1400		1781
1401	REQ_SEND;	1782	REQ_SEND;
1402	}	1783	}
1403		1784
1404	void	1785	void
1405	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1786	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1406	PPCODE:	1787	PPCODE:
1407	{	1788	{
1408	dREQ;	1789	dREQ;
1409		1790
1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1791	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1413		1794
1414	REQ_SEND;	1795	REQ_SEND;
1415	}	1796	}
1416		1797
1417	void	1798	void
1418	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1799	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1419	PPCODE:	1800	PPCODE:
1420	{	1801	{
1421	dREQ;	1802	dREQ;
1422		1803
1423	req->type = EIO_READDIR;	1804	req->type = EIO_READDIR;
…		…
1430		1811
1431	REQ_SEND;	1812	REQ_SEND;
1432	}	1813	}
1433		1814
1434	void	1815	void
1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1816	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1436	PPCODE:	1817	PPCODE:
1437	{	1818	{
1438	dREQ;	1819	dREQ;
1439		1820
1440	req->type = EIO_MKDIR;	1821	req->type = EIO_MKDIR;
…		…
1443		1824
1444	REQ_SEND;	1825	REQ_SEND;
1445	}	1826	}
1446		1827
1447	void	1828	void
1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1829	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1449	ALIAS:	1830	ALIAS:
1450	aio_unlink = EIO_UNLINK	1831	aio_unlink = EIO_UNLINK
1451	aio_rmdir = EIO_RMDIR	1832	aio_rmdir = EIO_RMDIR
1452	aio_readdir = EIO_READDIR	1833	aio_readdir = EIO_READDIR
1453	PPCODE:	1834	PPCODE:
…		…
1459		1840
1460	REQ_SEND;	1841	REQ_SEND;
1461	}	1842	}
1462		1843
1463	void	1844	void
1464	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1845	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1465	ALIAS:	1846	ALIAS:
1466	aio_link = EIO_LINK	1847	aio_link = EIO_LINK
1467	aio_symlink = EIO_SYMLINK	1848	aio_symlink = EIO_SYMLINK
1468	aio_rename = EIO_RENAME	1849	aio_rename = EIO_RENAME
1469	PPCODE:	1850	PPCODE:
…		…
1478		1859
1479	REQ_SEND;	1860	REQ_SEND;
1480	}	1861	}
1481		1862
1482	void	1863	void
		1864	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1865	PPCODE:
		1866	{
		1867	eio_wd wd2 = 0;
		1868	dREQ;
		1869
		1870	req->type = EIO_RENAME;
		1871	req_set_path1 (req, oldpath);
		1872	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1873	req->int2 = flags;
		1874	req->int3 = (long)wd2;
		1875
		1876	REQ_SEND;
		1877	}
		1878
		1879	void
1483	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1880	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1484	PPCODE:	1881	PPCODE:
1485	{	1882	{
1486	dREQ;	1883	dREQ;
1487		1884
1488	req->type = EIO_MKNOD;	1885	req->type = EIO_MKNOD;
…		…
1492		1889
1493	REQ_SEND;	1890	REQ_SEND;
1494	}	1891	}
1495		1892
1496	void	1893	void
1497	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1894	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1498	ALIAS:	1895	ALIAS:
1499	aio_mtouch = EIO_MTOUCH	1896	aio_mtouch = EIO_MTOUCH
1500	aio_msync = EIO_MSYNC	1897	aio_msync = EIO_MSYNC
1501	PPCODE:	1898	PPCODE:
1502	{	1899	{
1503	STRLEN svlen;	1900	STRLEN svlen;
1504	char *svptr = SvPVbyte (data, svlen);	1901	char *svptr = SvPVbyte (data, svlen);
1505	UV len = SvUV (length);	1902	UV len = SvUV (length);
		1903
		1904	if (flags < 0)
		1905	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1506		1906
1507	if (offset < 0)	1907	if (offset < 0)
1508	offset += svlen;	1908	offset += svlen;
1509		1909
1510	if (offset < 0 || offset > svlen)	1910	if (offset < 0 || offset > svlen)
…		…
1525	REQ_SEND;	1925	REQ_SEND;
1526	}	1926	}
1527	}	1927	}
1528		1928
1529	void	1929	void
1530	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1930	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1531	PPCODE:	1931	PPCODE:
1532	{	1932	{
1533	STRLEN svlen;	1933	STRLEN svlen;
1534	char *svptr = SvPVbyte (data, svlen);	1934	char *svptr = SvPVbyte (data, svlen);
1535	UV len = SvUV (length);	1935	UV len = SvUV (length);
…		…
1554	REQ_SEND;	1954	REQ_SEND;
1555	}	1955	}
1556	}	1956	}
1557		1957
1558	void	1958	void
1559	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1959	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1560	PPCODE:	1960	PPCODE:
1561	{	1961	{
1562	dREQ;	1962	dREQ;
1563		1963
1564	req->type = EIO_MLOCKALL;	1964	req->type = EIO_MLOCKALL;
…		…
1566		1966
1567	REQ_SEND;	1967	REQ_SEND;
1568	}	1968	}
1569		1969
1570	void	1970	void
1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1971	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1572	PPCODE:	1972	PPCODE:
1573	{	1973	{
1574	int fd = s_fileno_croak (fh, 0);	1974	int fd = s_fileno_croak (fh, 0);
1575	dREQ;	1975	dREQ;
1576		1976
…		…
1589		1989
1590	REQ_SEND;	1990	REQ_SEND;
1591	}	1991	}
1592		1992
1593	void	1993	void
		1994	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1995	PPCODE:
		1996	{
		1997	char *svptr = 0;
		1998
		1999	sv_clear_foreign (data);
		2000
		2001	if (length) /* known length, directly read into scalar */
		2002	{
		2003	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2004	svptr = sv_grow (data, length + 1);
		2005	else if (SvCUR (data) < length)
		2006	croak ("length outside of scalar, and cannot grow");
		2007	else
		2008	svptr = SvPVbyte_nolen (data);
		2009	}
		2010
		2011	{
		2012	dREQ;
		2013
		2014	req->type = EIO_SLURP;
		2015	req_set_path1 (req, pathname);
		2016	req->offs = offset;
		2017	req->size = length;
		2018	req->sv2 = SvREFCNT_inc (data);
		2019	req->ptr2 = svptr;
		2020
		2021	if (!SvREADONLY (data))
		2022	{
		2023	SvREADONLY_on (data);
		2024	req->flags |= FLAG_SV2_RO_OFF;
		2025	}
		2026
		2027	REQ_SEND;
		2028	}
		2029	}
		2030
		2031	void
1594	aio_busy (double delay, SV *callback=&PL_sv_undef)	2032	aio_busy (double delay, SV *callback = &PL_sv_undef)
1595	PPCODE:	2033	PPCODE:
1596	{	2034	{
1597	dREQ;	2035	dREQ;
1598		2036
1599	req->type = EIO_BUSY;	2037	req->type = EIO_BUSY;
…		…
1601		2039
1602	REQ_SEND;	2040	REQ_SEND;
1603	}	2041	}
1604		2042
1605	void	2043	void
1606	aio_group (SV *callback=&PL_sv_undef)	2044	aio_group (SV *callback = &PL_sv_undef)
1607	PPCODE:	2045	PPCODE:
1608	{	2046	{
1609	dREQ;	2047	dREQ;
1610		2048
1611	req->type = EIO_GROUP;	2049	req->type = EIO_GROUP;
1612		2050
		2051	PUTBACK;
1613	req_submit (req);	2052	req_submit (req);
		2053	SPAGAIN;
		2054
1614	XPUSHs (req_sv (req, aio_grp_stash));	2055	XPUSHs (req_sv (req, aio_grp_stash));
1615	}	2056	}
1616		2057
1617	void	2058	void
1618	aio_nop (SV *callback=&PL_sv_undef)	2059	aio_nop (SV *callback = &PL_sv_undef)
1619	ALIAS:	2060	ALIAS:
1620	aio_nop = EIO_NOP	2061	aio_nop = EIO_NOP
1621	aio_sync = EIO_SYNC	2062	aio_sync = EIO_SYNC
1622	PPCODE:	2063	PPCODE:
1623	{	2064	{
…		…
1627		2068
1628	REQ_SEND;	2069	REQ_SEND;
1629	}	2070	}
1630		2071
1631	int	2072	int
1632	aioreq_pri (int pri = 0)	2073	aioreq_pri (int pri = NO_INIT)
1633	CODE:	2074	CODE:
1634	RETVAL = next_pri;	2075	RETVAL = next_pri;
1635	if (items > 0)	2076	if (items > 0)
1636	{	2077	{
1637	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2078	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2168	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1728	OUTPUT:	2169	OUTPUT:
1729	RETVAL	2170	RETVAL
1730		2171
1731	void	2172	void
1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2173	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1733	PPCODE:	2174	PPCODE:
1734	sv_unmagic (scalar, MMAP_MAGIC);	2175	sv_clear_foreign (scalar);
1735	{	2176	{
1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2177	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2178	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1738	if (addr == (void *)-1)	2179	if (addr == (void *)-1)
1739	XSRETURN_NO;	2180	XSRETURN_NO;
1740		2181
1741	sv_force_normal (scalar);	2182	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1742
1743	/* we store the length in mg_obj, as namlen is I32 :/ */
1744	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1745	->mg_obj = (SV *)length;
1746
1747	SvUPGRADE (scalar, SVt_PV); /* nop... */
1748		2183
1749	if (!(prot & PROT_WRITE))	2184	if (!(prot & PROT_WRITE))
1750	SvREADONLY_on (scalar);	2185	SvREADONLY_on (scalar);
1751		2186
1752	if (SvLEN (scalar))
1753	Safefree (SvPVX (scalar));
1754
1755	SvPVX (scalar) = (char *)addr;
1756	SvCUR_set (scalar, length);
1757	SvLEN_set (scalar, 0);
1758	SvPOK_only (scalar);
1759
1760	XSRETURN_YES;	2187	XSRETURN_YES;
1761	}	2188	}
1762		2189
1763	void	2190	void
1764	munmap (SV *scalar)	2191	munmap (SV *scalar)
1765	CODE:	2192	CODE:
1766	sv_unmagic (scalar, MMAP_MAGIC);	2193	sv_clear_foreign (scalar);
		2194
		2195	SV *
		2196	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2197	CODE:
		2198	{
		2199	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2200	void *new;
		2201
		2202	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2203	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2204
		2205	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2206
		2207	RETVAL = &PL_sv_no;
		2208
		2209	if (new != (void *)-1)
		2210	{
		2211	RETVAL = new == (void *)mg->mg_ptr
		2212	? newSVpvn ("0 but true", 10)
		2213	: &PL_sv_yes;
		2214
		2215	mg->mg_ptr = (char *)new;
		2216	mg->mg_obj = (SV *)new_length;
		2217
		2218	SvPVX (scalar) = mg->mg_ptr;
		2219	SvCUR_set (scalar, new_length);
		2220	}
		2221	}
		2222	OUTPUT:
		2223	RETVAL
1767		2224
1768	int	2225	int
1769	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2226	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1770	ALIAS:	2227	ALIAS:
1771	mprotect = 1	2228	mprotect = 1
1772	CODE:	2229	CODE:
1773	{	2230	{
1774	STRLEN svlen;	2231	STRLEN svlen;
1775	void *addr = SvPVbyte (scalar, svlen);	2232	void *addr = SvPVbyte (scalar, svlen);
1776	size_t len = SvUV (length);	2233	STRLEN len = SvUV (length);
1777		2234
1778	if (offset < 0)	2235	if (offset < 0)
1779	offset += svlen;	2236	offset += svlen;
1780		2237
1781	if (offset < 0 || offset > svlen)	2238	if (offset < 0 || offset > svlen)
…		…
1795	}	2252	}
1796	OUTPUT:	2253	OUTPUT:
1797	RETVAL	2254	RETVAL
1798		2255
1799	int	2256	int
1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2257	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1801	CODE:	2258	CODE:
1802	{	2259	{
1803	STRLEN svlen;	2260	STRLEN svlen;
1804	void *addr = SvPVbyte (scalar, svlen);	2261	void *addr = SvPVbyte (scalar, svlen);
1805	size_t len = SvUV (length);	2262	size_t len = SvUV (length);
…		…
1820	#else	2277	#else
1821	RETVAL = EIO_ENOSYS ();	2278	RETVAL = EIO_ENOSYS ();
1822	#endif	2279	#endif
1823	}	2280	}
1824	OUTPUT:	2281	OUTPUT:
		2282	RETVAL
		2283
		2284	int
		2285	mlockall (int flags)
		2286	PROTOTYPE: $;
		2287	CODE:
		2288	RETVAL = eio_mlockall_sync (flags);
		2289	OUTPUT:
1825	RETVAL	2290	RETVAL
1826		2291
1827	int	2292	int
1828	munlockall ()	2293	munlockall ()
1829	CODE:	2294	CODE:
…		…
1861	#else	2326	#else
1862	RETVAL = EIO_ENOSYS ();	2327	RETVAL = EIO_ENOSYS ();
1863	#endif	2328	#endif
1864	OUTPUT:	2329	OUTPUT:
1865	RETVAL	2330	RETVAL
		2331
		2332	int
		2333	pipesize (aio_rfd rfh, int new_size = -1)
		2334	PROTOTYPE: $;$
		2335	CODE:
		2336	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2337	if (new_size >= 0)
		2338	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2339	else
		2340	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2341	#else
		2342	errno = ENOSYS;
		2343	RETVAL = -1;
		2344	#endif
		2345	OUTPUT:
		2346	RETVAL
		2347
		2348	void
		2349	pipe2 (int flags = 0)
		2350	PROTOTYPE: ;$
		2351	PPCODE:
		2352	{
		2353	int fd[2];
		2354	int res;
		2355
		2356	if (flags)
		2357	#if HAVE_PIPE2
		2358	res = pipe2 (fd, flags);
		2359	#else
		2360	res = (errno = ENOSYS, -1);
		2361	#endif
		2362	else
		2363	res = pipe (fd);
		2364
		2365	if (!res)
		2366	{
		2367	EXTEND (SP, 2);
		2368	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2369	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2370	}
		2371	}
		2372
		2373	void
		2374	eventfd (unsigned int initval = 0, int flags = 0)
		2375	PPCODE:
		2376	{
		2377	int fd;
		2378	#if HAVE_EVENTFD
		2379	fd = eventfd (initval, flags);
		2380	#else
		2381	fd = (errno = ENOSYS, -1);
		2382	#endif
		2383
		2384	XPUSHs (newmortalFH (fd, O_RDWR));
		2385	}
		2386
		2387	void
		2388	timerfd_create (int clockid, int flags = 0)
		2389	PPCODE:
		2390	{
		2391	int fd;
		2392	#if HAVE_TIMERFD
		2393	fd = timerfd_create (clockid, flags);
		2394	#else
		2395	fd = (errno = ENOSYS, -1);
		2396	#endif
		2397
		2398	XPUSHs (newmortalFH (fd, O_RDWR));
		2399	}
		2400
		2401	void
		2402	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2403	PPCODE:
		2404	{
		2405	int fd = s_fileno_croak (fh, 0);
		2406	#if HAVE_TIMERFD
		2407	int res;
		2408	struct itimerspec its, ots;
		2409
		2410	ts_set (&its.it_interval, interval);
		2411	ts_set (&its.it_value , value);
		2412	res = timerfd_settime (fd, flags, &its, &ots);
		2413
		2414	if (!res)
		2415	{
		2416	EXTEND (SP, 2);
		2417	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2418	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2419	}
		2420	#else
		2421	errno = ENOSYS;
		2422	#endif
		2423	}
		2424
		2425	void
		2426	timerfd_gettime (SV *fh)
		2427	PPCODE:
		2428	{
		2429	int fd = s_fileno_croak (fh, 0);
		2430	#if HAVE_TIMERFD
		2431	int res;
		2432	struct itimerspec ots;
		2433	res = timerfd_gettime (fd, &ots);
		2434
		2435	if (!res)
		2436	{
		2437	EXTEND (SP, 2);
		2438	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2439	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2440	}
		2441	#else
		2442	errno = ENOSYS;
		2443	#endif
		2444	}
		2445
		2446	UV
		2447	get_fdlimit ()
		2448	CODE:
		2449	#if HAVE_RLIMITS
		2450	struct rlimit rl;
		2451	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2452	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2453	#endif
		2454	XSRETURN_UNDEF;
		2455	OUTPUT:
		2456	RETVAL
		2457
		2458	void
		2459	min_fdlimit (UV limit = 0x7fffffffU)
		2460	CODE:
		2461	{
		2462	#if HAVE_RLIMITS
		2463	struct rlimit rl;
		2464	rlim_t orig_rlim_max;
		2465	UV bit;
		2466
		2467	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2468	goto fail;
		2469
		2470	if (rl.rlim_cur == RLIM_INFINITY)
		2471	XSRETURN_YES;
		2472
		2473	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2474
		2475	if (rl.rlim_cur < limit)
		2476	{
		2477	rl.rlim_cur = limit;
		2478
		2479	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2480	rl.rlim_max = rl.rlim_cur;
		2481	}
		2482
		2483	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2484	XSRETURN_YES;
		2485
		2486	if (errno == EPERM)
		2487	{
		2488	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2489	/* our limit overflows a system-wide limit */
		2490	/* try an adaptive algorithm, but do not lower the hardlimit */
		2491	rl.rlim_max = 0;
		2492	for (bit = 0x40000000U; bit; bit >>= 1)
		2493	{
		2494	rl.rlim_max |= bit;
		2495	rl.rlim_cur = rl.rlim_max;
		2496
		2497	/* nevr decrease the hard limit */
		2498	if (rl.rlim_max < orig_rlim_max)
		2499	break;
		2500
		2501	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2502	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2503	}
		2504
		2505	/* now, raise the soft limit to the max permitted */
		2506	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2507	{
		2508	rl.rlim_cur = rl.rlim_max;
		2509	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2510	errno = EPERM;
		2511	}
		2512	}
		2513	#endif
		2514	fail:
		2515	XSRETURN_UNDEF;
		2516	}
1866		2517
1867	void _on_next_submit (SV *cb)	2518	void _on_next_submit (SV *cb)
1868	CODE:	2519	CODE:
1869	SvREFCNT_dec (on_next_submit);	2520	SvREFCNT_dec (on_next_submit);
1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2521	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1905	cancel (aio_req_ornot req)	2556	cancel (aio_req_ornot req)
1906	CODE:	2557	CODE:
1907	eio_cancel (req);	2558	eio_cancel (req);
1908		2559
1909	void	2560	void
1910	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2561	cb (aio_req_ornot req, SV *callback = NO_INIT)
1911	PPCODE:	2562	PPCODE:
1912	{	2563	{
1913	if (GIMME_V != G_VOID)	2564	if (GIMME_V != G_VOID)
1914	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2565	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1915		2566
1916	if (items > 1)	2567	if (items > 1)
1917	{	2568	{
1918	SV *cb_cv =get_cb (callback);	2569	SV *cb_cv = get_cb (callback);
1919		2570
1920	SvREFCNT_dec (req->callback);	2571	SvREFCNT_dec (req->callback);
1921	req->callback = SvREFCNT_inc (cb_cv);	2572	req->callback = SvREFCNT_inc (cb_cv);
1922	}	2573	}
1923	}	2574	}
…		…
1980	limit (aio_req grp, int limit)	2631	limit (aio_req grp, int limit)
1981	CODE:	2632	CODE:
1982	eio_grp_limit (grp, limit);	2633	eio_grp_limit (grp, limit);
1983		2634
1984	void	2635	void
1985	feed (aio_req grp, SV *callback=&PL_sv_undef)	2636	feed (aio_req grp, SV *callback = &PL_sv_undef)
1986	CODE:	2637	CODE:
1987	{	2638	{
1988	SvREFCNT_dec (grp->sv2);	2639	SvREFCNT_dec (grp->sv2);
1989	grp->sv2 = newSVsv (callback);	2640	grp->sv2 = newSVsv (callback);
1990	grp->feed = aio_grp_feed;	2641	grp->feed = aio_grp_feed;

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