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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	30	# include <sys/mman.h>
22	#endif	31	#endif
23		32
24	#if __linux__	33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	39	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	40	# ifdef FS_IOC_FIEMAP
		41	# include <linux/types.h>
27	# include <linux/fiemap.h>	42	# include <linux/fiemap.h>
28	# define HAVE_FIEMAP 1	43	# define HAVE_FIEMAP 1
29	# endif	44	# endif
30	#endif	45	#endif
31		46
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
100		115
101	/*****************************************************************************/	116	/*****************************************************************************/
102		117
		118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
		148
103	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	150	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	151	typedef int aio_wfd; /* write file descriptor */
106		152
107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	153	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
113	STRLEN stroffset; \	159	STRLEN stroffset; \
114	SV *self;	160	SV *self;
115		161
116	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
117		163
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	164	#include "libeio/eio.h"
120		165
121	static int req_invoke (eio_req *req);	166	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	167	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	168	static void req_destroy (eio_req *grp);
…		…
139	# else	184	# else
140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141	# endif	186	# endif
142	#endif	187	#endif
143		188
144	/* defines all sorts of constants to 0 unless they are already defined */
145	#include "def0.h"
146
147	#ifndef makedev	189	#ifndef makedev
148	# define makedev(maj,min) (((maj) << 8) | (min))	190	# define makedev(maj,min) (((maj) << 8) | (min))
149	#endif	191	#endif
150	#ifndef major	192	#ifndef major
151	# define major(dev) ((dev) >> 8)	193	# define major(dev) ((dev) >> 8)
152	#endif	194	#endif
153	#ifndef minor	195	#ifndef minor
154	# define minor(dev) ((dev) & 0xff)	196	# define minor(dev) ((dev) & 0xff)
155	#endif	197	#endif
156		198
157	#ifndef PAGESIZE	199	#if PAGESIZE <= 0
158	# define PAGESIZE sysconf (_SC_PAGESIZE)	200	# define PAGESIZE sysconf (_SC_PAGESIZE)
159	#endif	201	#endif
		202
		203	/*****************************************************************************/
		204
		205	#if !_POSIX_MAPPED_FILES
		206	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		207	# define munmap(addr,length) EIO_ENOSYS ()
		208	#endif
		209
		210	#if !_POSIX_MEMORY_PROTECTION
		211	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		212	#endif
		213
		214	#if !MREMAP_MAYMOVE
		215	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		216	#endif
		217
		218	#define FOREIGN_MAGIC PERL_MAGIC_ext
		219
		220	static int ecb_cold
		221	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	int old_errno = errno;
		224	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		225	errno = old_errno;
		226
		227	mg->mg_obj = 0; /* just in case */
		228
		229	SvREADONLY_off (sv);
		230
		231	if (SvPVX (sv) != mg->mg_ptr)
		232	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		233
		234	SvCUR_set (sv, 0);
		235	SvPVX (sv) = 0;
		236	SvOK_off (sv);
		237
		238	return 0;
		239	}
		240
		241	static MGVTBL mmap_vtbl = {
		242	0, 0, 0, 0, mmap_free
		243	};
		244
		245	static int ecb_cold
		246	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		247	{
		248	free (mg->mg_ptr);
		249	mg->mg_obj = 0; /* just in case */
		250
		251	SvREADONLY_off (sv);
		252
		253	if (SvPVX (sv) != mg->mg_ptr)
		254	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		255
		256	SvCUR_set (sv, 0);
		257	SvPVX (sv) = 0;
		258	SvOK_off (sv);
		259
		260	return 0;
		261	}
		262
		263	static MGVTBL sysfree_vtbl = {
		264	0, 0, 0, 0, sysfree_free
		265	};
		266
		267	/*****************************************************************************/
		268
		269	/* helper: set scalar to foreign ptr with custom free */
		270	static void
		271	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		272	{
		273	sv_force_normal (sv);
		274
		275	/* we store the length in mg_obj, as namlen is I32 :/ */
		276	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		277	->mg_obj = (SV *)length;
		278
		279	SvUPGRADE (sv, SVt_PV); /* nop... */
		280
		281	if (SvLEN (sv))
		282	Safefree (SvPVX (sv));
		283
		284	SvPVX (sv) = (char *)addr;
		285	SvCUR_set (sv, length);
		286	SvLEN_set (sv, 0);
		287	SvPOK_only (sv);
		288	}
		289
		290	static void
		291	sv_clear_foreign (SV *sv)
		292	{
		293	/* todo: iterate over magic and only free ours, but of course */
		294	/* the perl5porters will call that (correct) behaviour buggy */
		295	sv_unmagic (sv, FOREIGN_MAGIC);
		296	}
		297
		298	/*****************************************************************************/
		299
		300	/* defines all sorts of constants to 0 unless they are already defined */
		301	/* also provides const_iv_ and const_niv_ macros for them */
		302	#include "def0.h"
160		303
161	/*****************************************************************************/	304	/*****************************************************************************/
162		305
163	static void	306	static void
164	fiemap (eio_req *req)	307	fiemap (eio_req *req)
165	{	308	{
166	req->result = -1;	309	req->result = -1;
167		310
168	#if HAVE_FIEMAP	311	#if HAVE_FIEMAP
		312	/* assume some c99 */
		313	struct fiemap *fiemap = 0;
		314	size_t end_offset;
169	int count = req->int3;	315	int count = req->int3;
170		316
171	/* heuristic: first try with 64 extents if we don't know how many, */	317	req->flags |= EIO_FLAG_PTR1_FREE;
172	/* as most files have (hopefully) fewer than this many extents */	318
173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	319	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		320	/* increase in 3.5kb steps */
174	if (count < 0)	321	if (count < 0)
175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	322	count = 8;
		323
		324	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		325	errno = ENOMEM;
		326	if (!fiemap)
		327	return;
		328
		329	req->ptr1 = fiemap;
		330
		331	fiemap->fm_start = req->offs;
		332	fiemap->fm_length = req->size;
		333	fiemap->fm_flags = req->int2;
		334	fiemap->fm_extent_count = count;
		335
		336	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		337	return;
		338
		339	if (req->int3 >= 0 /* not autosizing */
		340	|| !fiemap->fm_mapped_extents /* no more extents */
		341	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		342	goto done;
		343
		344	/* else we have to loop -
		345	* it would be tempting (actually I tried that first) to just query the
		346	* number of extents needed, but linux often feels like not returning all
		347	* extents, without telling us it left any out. this complicates
		348	* this quite a bit.
		349	*/
		350
		351	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
176		352
177	for (;;)	353	for (;;)
178	{	354	{
		355	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		356	char scratch[3072];
		357	struct fiemap *incmap = (struct fiemap *)scratch;
		358
		359	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		360	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		361	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		362	incmap->fm_flags = fiemap->fm_flags;
		363	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		364
		365	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		366	return;
		367
		368	if (!incmap->fm_mapped_extents)
		369	goto done;
		370
		371	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	372	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
180	errno = ENOMEM;	373	errno = ENOMEM;
181	if (!fiemap)	374	if (!fiemap)
182	return;	375	return;
183		376
184	req->ptr1 = fiemap;	377	req->ptr1 = fiemap;
185	req->flags |= EIO_FLAG_PTR1_FREE;
186		378
187	fiemap->fm_start = req->offs;	379	for (count = 0; count < incmap->fm_mapped_extents; ++count)
188	fiemap->fm_length = req->size;	380	{
189	fiemap->fm_flags = req->int2;	381	struct fiemap_extent *e = incmap->fm_extents + count;
190	fiemap->fm_extent_count = count;
191		382
192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	383	if (e->fe_logical + e->fe_length >= end_offset)
193	return;	384	goto done;
194		385
195	if (req->int3 >= 0)	386	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
196	break; /* when not autosizing we are done */
197		387
198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	388	if (e->fe_flags & FIEMAP_EXTENT_LAST)
199	break; /* autosizing successful, we are done */	389	goto done;
200		390
201	fiemap->fm_flags = req->int2;	391	}
202	fiemap->fm_extent_count = 0;
203
204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
205	return;
206
207	count = fiemap->fm_mapped_extents;
208
209	free (fiemap);
210	}	392	}
211		393
		394	done:
212	req->result = 0;	395	req->result = 0;
213		396
214	#else	397	#else
215	errno = ENOSYS;	398	errno = ENOSYS;
216	#endif	399	#endif
…		…
263	}	446	}
264		447
265	static SV *	448	static SV *
266	newSVaio_wd (aio_wd wd)	449	newSVaio_wd (aio_wd wd)
267	{	450	{
268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	451	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
269	}	452	}
270		453
271	static aio_req	454	static aio_req
272	SvAIO_REQ (SV *sv)	455	SvAIO_REQ (SV *sv)
273	{	456	{
…		…
292	|| SvTYPE (SvRV (sv)) != SVt_PVMG	475	|| SvTYPE (SvRV (sv)) != SVt_PVMG
293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	476	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	477	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
295		478
296	return (aio_wd)(long)SvIVX (SvRV (sv));	479	return (aio_wd)(long)SvIVX (SvRV (sv));
		480	}
		481
		482	static SV *
		483	newmortalFH (int fd, int flags)
		484	{
		485	if (fd < 0)
		486	return &PL_sv_undef;
		487
		488	GV *gv = (GV *)sv_newmortal ();
		489	char sym[64];
		490	int symlen;
		491
		492	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		493	gv_init (gv, aio_stash, sym, symlen, 0);
		494
		495	symlen = snprintf (
		496	sym,
		497	sizeof (sym),
		498	"%s&=%d",
		499	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		500	fd
		501	);
		502
		503	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		504	? (SV *)gv : &PL_sv_undef;
297	}	505	}
298		506
299	static void	507	static void
300	aio_grp_feed (aio_req grp)	508	aio_grp_feed (aio_req grp)
301	{	509	{
…		…
429	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	637	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
430	}	638	}
431	break;	639	break;
432		640
433	case EIO_OPEN:	641	case EIO_OPEN:
434	{	642	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
435	/* convert fd to fh */
436	SV *fh = &PL_sv_undef;
437
438	if (req->result >= 0)
439	{
440	GV *gv = (GV *)sv_newmortal ();
441	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
442	char sym [64];
443	int symlen;
444
445	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
446	gv_init (gv, aio_stash, sym, symlen, 0);
447
448	symlen = snprintf (
449	sym,
450	sizeof (sym),
451	"%s&=%d",
452	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
453	(int)req->result
454	);
455
456	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
457	fh = (SV *)gv;
458	}
459
460	PUSHs (fh);
461	}
462	break;	643	break;
463		644
464	case EIO_STATVFS:	645	case EIO_STATVFS:
465	case EIO_FSTATVFS:	646	case EIO_FSTATVFS:
466	{	647	{
…		…
469	#ifndef _WIN32	650	#ifndef _WIN32
470	if (req->result >= 0)	651	if (req->result >= 0)
471	{	652	{
472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	653	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
473	HV *hv = newHV ();	654	HV *hv = newHV ();
		655	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		656	* chooses to make it a struct.
		657	*/
		658	unsigned long fsid = 0;
		659	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
474		660
475	rv = sv_2mortal (newRV_noinc ((SV *)hv));	661	rv = sv_2mortal (newRV_noinc ((SV *)hv));
476		662
477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	663	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
478	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	664	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
480	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	666	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
481	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	667	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
482	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	668	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
483	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	669	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
484	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	670	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	671	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	672	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
487	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	673	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
488	}	674	}
489	#endif	675	#endif
490		676
…		…
541	SvSETMAGIC (req->sv2);	727	SvSETMAGIC (req->sv2);
542	PUSHs (sv_result);	728	PUSHs (sv_result);
543	}	729	}
544	break;	730	break;
545		731
		732	case EIO_SLURP:
		733	{
		734	if (req->result >= 0)
		735	{
		736	/* if length was originally not known, we steal the malloc'ed memory */
		737	if (req->flags & EIO_FLAG_PTR2_FREE)
		738	{
		739	req->flags &= ~EIO_FLAG_PTR2_FREE;
		740	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		741	}
		742	else
		743	{
		744	SvCUR_set (req->sv2, req->result);
		745	*SvEND (req->sv2) = 0;
		746	SvPOK_only (req->sv2);
		747	}
		748
		749	SvSETMAGIC (req->sv2);
		750	}
		751
		752	PUSHs (sv_result);
		753	}
		754	break;
		755
546	case EIO_CUSTOM:	756	case EIO_CUSTOM:
547	if (req->feed == fiemap)	757	if (req->feed == fiemap)
548	{	758	{
549	#if HAVE_FIEMAP	759	#if HAVE_FIEMAP
550	if (!req->result)	760	if (!req->result)
…		…
655	{	865	{
656	while (eio_nreqs ())	866	while (eio_nreqs ())
657	{	867	{
658	int size;	868	int size;
659		869
660	X_LOCK (reslock);	870	X_LOCK (EIO_POOL->reslock);
661	size = res_queue.size;	871	size = EIO_POOL->res_queue.size;
662	X_UNLOCK (reslock);	872	X_UNLOCK (EIO_POOL->reslock);
663		873
664	if (size)	874	if (size)
665	return;	875	return;
666		876
667	etp_maybe_start_thread ();	877	etp_maybe_start_thread (EIO_POOL);
668		878
669	s_epipe_wait (&respipe);	879	s_epipe_wait (&respipe);
670	}	880	}
671	}	881	}
672		882
…		…
693	create_respipe ();	903	create_respipe ();
694		904
695	if (eio_init (want_poll, done_poll) < 0)	905	if (eio_init (want_poll, done_poll) < 0)
696	croak ("IO::AIO: unable to initialise eio library");	906	croak ("IO::AIO: unable to initialise eio library");
697	}	907	}
698
699	/*****************************************************************************/
700
701	#if !_POSIX_MAPPED_FILES
702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
703	# define munmap(addr,length) (errno = ENOSYS, -1)
704	#endif
705
706	#if !_POSIX_MEMORY_PROTECTION
707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
708	# define PROT_NONE 0
709	# define PROT_WRITE 0
710	# define MAP_PRIVATE 0
711	# define MAP_SHARED 0
712	# define MAP_FIXED 0
713	#endif
714
715	#define MMAP_MAGIC PERL_MAGIC_ext
716
717	static int ecb_cold
718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
719	{
720	int old_errno = errno;
721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
722	errno = old_errno;
723
724	mg->mg_obj = 0; /* just in case */
725
726	SvREADONLY_off (sv);
727
728	if (SvPVX (sv) != mg->mg_ptr)
729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
730
731	SvCUR_set (sv, 0);
732	SvPVX (sv) = 0;
733	SvOK_off (sv);
734
735	return 0;
736	}
737
738	static MGVTBL mmap_vtbl = {
739	0, 0, 0, 0, mmap_free
740	};
741		908
742	/*****************************************************************************/	909	/*****************************************************************************/
743		910
744	static SV *	911	static SV *
745	get_cb (SV *cb_sv)	912	get_cb (SV *cb_sv)
…		…
841	req_set_path1 (req, fh_or_path);	1008	req_set_path1 (req, fh_or_path);
842	break;	1009	break;
843	}	1010	}
844	}	1011	}
845		1012
		1013	/*****************************************************************************/
		1014
		1015	static void
		1016	ts_set (struct timespec *ts, NV value)
		1017	{
		1018	ts->tv_sec = value;
		1019	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1020	}
		1021
		1022	static NV
		1023	ts_get (const struct timespec *ts)
		1024	{
		1025	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1026	}
		1027
		1028	/*****************************************************************************/
		1029
846	XS(boot_IO__AIO) ecb_cold;	1030	XS(boot_IO__AIO) ecb_cold;
847		1031
848	MODULE = IO::AIO PACKAGE = IO::AIO	1032	MODULE = IO::AIO PACKAGE = IO::AIO
849		1033
850	PROTOTYPES: ENABLE	1034	PROTOTYPES: ENABLE
…		…
857	} *civ, const_iv[] = {	1041	} *civ, const_iv[] = {
858	# define const_niv(name, value) { # name, (IV) value },	1042	# define const_niv(name, value) { # name, (IV) value },
859	# define const_iv(name) { # name, (IV) name },	1043	# define const_iv(name) { # name, (IV) name },
860	# define const_eio(name) { # name, (IV) EIO_ ## name },	1044	# define const_eio(name) { # name, (IV) EIO_ ## name },
861		1045
862	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1046	/* you have to re-run ./gendef0 after adding/removing any constants here */
863		1047	/* the first block can be undef if missing */
864	const_iv (ENOSYS)	1048	const_iv (ENOSYS)
865	const_iv (EXDEV)	1049	const_iv (EXDEV)
866	const_iv (EBADR)	1050	const_iv (EBADR)
		1051
		1052	/* for lseek */
		1053	const_iv (SEEK_DATA)
		1054	const_iv (SEEK_HOLE)
		1055
		1056	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1057	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1058	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1059	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1060	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1061	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1062
		1063	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1064	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1065	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1066	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1067	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1068
		1069	/* the second block will be 0 when missing */
		1070	const_iv (O_ACCMODE)
867		1071
868	const_iv (O_RDONLY)	1072	const_iv (O_RDONLY)
869	const_iv (O_WRONLY)	1073	const_iv (O_WRONLY)
870	const_iv (O_RDWR)	1074	const_iv (O_RDWR)
871	const_iv (O_CREAT)	1075	const_iv (O_CREAT)
…		…
885	const_iv (O_SEARCH)	1089	const_iv (O_SEARCH)
886	const_iv (O_DIRECTORY)	1090	const_iv (O_DIRECTORY)
887	const_iv (O_DSYNC)	1091	const_iv (O_DSYNC)
888	const_iv (O_RSYNC)	1092	const_iv (O_RSYNC)
889	const_iv (O_SYNC)	1093	const_iv (O_SYNC)
		1094	const_iv (O_PATH)
		1095	const_iv (O_TMPFILE)
890	const_iv (O_TTY_INIT)	1096	const_iv (O_TTY_INIT)
891		1097
892	const_iv (S_IFIFO)	1098	const_iv (S_IFIFO)
893	const_iv (S_IFCHR)	1099	const_iv (S_IFCHR)
894	const_iv (S_IFBLK)	1100	const_iv (S_IFBLK)
…		…
896	const_iv (S_IFREG)	1102	const_iv (S_IFREG)
897	const_iv (S_IFDIR)	1103	const_iv (S_IFDIR)
898	const_iv (S_IFWHT)	1104	const_iv (S_IFWHT)
899	const_iv (S_IFSOCK)	1105	const_iv (S_IFSOCK)
900	const_iv (S_IFMT)	1106	const_iv (S_IFMT)
901
902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
908
909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
914		1107
915	const_iv (ST_RDONLY)	1108	const_iv (ST_RDONLY)
916	const_iv (ST_NOSUID)	1109	const_iv (ST_NOSUID)
917	const_iv (ST_NODEV)	1110	const_iv (ST_NODEV)
918	const_iv (ST_NOEXEC)	1111	const_iv (ST_NOEXEC)
…		…
928	const_iv (PROT_NONE)	1121	const_iv (PROT_NONE)
929	const_iv (PROT_EXEC)	1122	const_iv (PROT_EXEC)
930	const_iv (PROT_READ)	1123	const_iv (PROT_READ)
931	const_iv (PROT_WRITE)	1124	const_iv (PROT_WRITE)
932		1125
933	/*const_iv (MAP_FIXED)*/
934	const_iv (MAP_PRIVATE)	1126	const_iv (MAP_PRIVATE)
935	const_iv (MAP_SHARED)	1127	const_iv (MAP_SHARED)
		1128	const_iv (MAP_FIXED)
936	const_iv (MAP_ANONYMOUS)	1129	const_iv (MAP_ANONYMOUS)
937		1130
938	/* linuxish */	1131	/* linuxish */
939	const_iv (MAP_HUGETLB)
940	const_iv (MAP_LOCKED)	1132	const_iv (MAP_LOCKED)
941	const_iv (MAP_NORESERVE)	1133	const_iv (MAP_NORESERVE)
942	const_iv (MAP_POPULATE)	1134	const_iv (MAP_POPULATE)
943	const_iv (MAP_NONBLOCK)	1135	const_iv (MAP_NONBLOCK)
		1136	const_iv (MAP_GROWSDOWN)
		1137	const_iv (MAP_32BIT)
		1138	const_iv (MAP_HUGETLB)
		1139	const_iv (MAP_STACK)
		1140
		1141	const_iv (MREMAP_MAYMOVE)
		1142	const_iv (MREMAP_FIXED)
		1143
		1144	const_iv (F_DUPFD_CLOEXEC)
		1145
		1146	const_iv (MSG_CMSG_CLOEXEC)
		1147	const_iv (SOCK_CLOEXEC)
		1148
		1149	const_iv (F_OFD_GETLK)
		1150	const_iv (F_OFD_SETLK)
		1151	const_iv (F_OFD_GETLKW)
		1152
		1153	const_iv (FIFREEZE)
		1154	const_iv (FITHAW)
		1155	const_iv (FITRIM)
		1156	const_iv (FICLONE)
		1157	const_iv (FICLONERANGE)
		1158	const_iv (FIDEDUPERANGE)
		1159
		1160	const_iv (FS_IOC_GETFLAGS)
		1161	const_iv (FS_IOC_SETFLAGS)
		1162	const_iv (FS_IOC_GETVERSION)
		1163	const_iv (FS_IOC_SETVERSION)
		1164	const_iv (FS_IOC_FIEMAP)
		1165	const_iv (FS_IOC_FSGETXATTR)
		1166	const_iv (FS_IOC_FSSETXATTR)
		1167	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1168	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1169	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1170
		1171	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1172
		1173	const_iv (FS_SECRM_FL)
		1174	const_iv (FS_UNRM_FL)
		1175	const_iv (FS_COMPR_FL)
		1176	const_iv (FS_SYNC_FL)
		1177	const_iv (FS_IMMUTABLE_FL)
		1178	const_iv (FS_APPEND_FL)
		1179	const_iv (FS_NODUMP_FL)
		1180	const_iv (FS_NOATIME_FL)
		1181	const_iv (FS_DIRTY_FL)
		1182	const_iv (FS_COMPRBLK_FL)
		1183	const_iv (FS_NOCOMP_FL)
		1184	const_iv (FS_ENCRYPT_FL)
		1185	const_iv (FS_BTREE_FL)
		1186	const_iv (FS_INDEX_FL)
		1187	const_iv (FS_JOURNAL_DATA_FL)
		1188	const_iv (FS_NOTAIL_FL)
		1189	const_iv (FS_DIRSYNC_FL)
		1190	const_iv (FS_TOPDIR_FL)
		1191	const_iv (FS_FL_USER_MODIFIABLE)
		1192
		1193	const_iv (FS_XFLAG_REALTIME)
		1194	const_iv (FS_XFLAG_PREALLOC)
		1195	const_iv (FS_XFLAG_IMMUTABLE)
		1196	const_iv (FS_XFLAG_APPEND)
		1197	const_iv (FS_XFLAG_SYNC)
		1198	const_iv (FS_XFLAG_NOATIME)
		1199	const_iv (FS_XFLAG_NODUMP)
		1200	const_iv (FS_XFLAG_RTINHERIT)
		1201	const_iv (FS_XFLAG_PROJINHERIT)
		1202	const_iv (FS_XFLAG_NOSYMLINKS)
		1203	const_iv (FS_XFLAG_EXTSIZE)
		1204	const_iv (FS_XFLAG_EXTSZINHERIT)
		1205	const_iv (FS_XFLAG_NODEFRAG)
		1206	const_iv (FS_XFLAG_FILESTREAM)
		1207	const_iv (FS_XFLAG_DAX)
		1208	const_iv (FS_XFLAG_HASATTR)
944		1209
945	const_iv (FIEMAP_FLAG_SYNC)	1210	const_iv (FIEMAP_FLAG_SYNC)
946	const_iv (FIEMAP_FLAG_XATTR)	1211	const_iv (FIEMAP_FLAG_XATTR)
947	const_iv (FIEMAP_FLAGS_COMPAT)	1212	const_iv (FIEMAP_FLAGS_COMPAT)
948	const_iv (FIEMAP_EXTENT_LAST)	1213	const_iv (FIEMAP_EXTENT_LAST)
…		…
955	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1220	const_iv (FIEMAP_EXTENT_DATA_TAIL)
956	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1221	const_iv (FIEMAP_EXTENT_UNWRITTEN)
957	const_iv (FIEMAP_EXTENT_MERGED)	1222	const_iv (FIEMAP_EXTENT_MERGED)
958	const_iv (FIEMAP_EXTENT_SHARED)	1223	const_iv (FIEMAP_EXTENT_SHARED)
959		1224
		1225	const_iv (SPLICE_F_MOVE)
		1226	const_iv (SPLICE_F_NONBLOCK)
		1227	const_iv (SPLICE_F_MORE)
		1228	const_iv (SPLICE_F_GIFT)
		1229
		1230	const_iv (EFD_CLOEXEC)
		1231	const_iv (EFD_NONBLOCK)
		1232	const_iv (EFD_SEMAPHORE)
		1233
		1234	const_iv (CLOCK_REALTIME)
		1235	const_iv (CLOCK_MONOTONIC)
		1236	const_iv (CLOCK_BOOTTIME)
		1237	const_iv (CLOCK_REALTIME_ALARM)
		1238	const_iv (CLOCK_BOOTTIME_ALARM)
		1239
		1240	const_iv (TFD_NONBLOCK)
		1241	const_iv (TFD_CLOEXEC)
		1242
		1243	const_iv (TFD_TIMER_ABSTIME)
		1244	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1245
		1246	/* these are libeio constants, and are independent of gendef0 */
960	const_eio (SEEK_SET)	1247	const_eio (SEEK_SET)
961	const_eio (SEEK_CUR)	1248	const_eio (SEEK_CUR)
962	const_eio (SEEK_END)	1249	const_eio (SEEK_END)
963		1250
964	const_eio (MCL_FUTURE)	1251	const_eio (MCL_FUTURE)
…		…
973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1260	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
974	const_eio (SYNC_FILE_RANGE_WRITE)	1261	const_eio (SYNC_FILE_RANGE_WRITE)
975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1262	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
976		1263
977	const_eio (FALLOC_FL_KEEP_SIZE)	1264	const_eio (FALLOC_FL_KEEP_SIZE)
		1265	const_eio (FALLOC_FL_PUNCH_HOLE)
		1266	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1267	const_eio (FALLOC_FL_ZERO_RANGE)
		1268	const_eio (FALLOC_FL_INSERT_RANGE)
		1269	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1270
		1271	const_eio (RENAME_NOREPLACE)
		1272	const_eio (RENAME_EXCHANGE)
		1273	const_eio (RENAME_WHITEOUT)
978		1274
979	const_eio (READDIR_DENTS)	1275	const_eio (READDIR_DENTS)
980	const_eio (READDIR_DIRS_FIRST)	1276	const_eio (READDIR_DIRS_FIRST)
981	const_eio (READDIR_STAT_ORDER)	1277	const_eio (READDIR_STAT_ORDER)
982	const_eio (READDIR_FOUND_UNKNOWN)	1278	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1050	PROTOTYPE: $	1346	PROTOTYPE: $
1051	CODE:	1347	CODE:
1052	max_outstanding = maxreqs;	1348	max_outstanding = maxreqs;
1053		1349
1054	void	1350	void
1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1351	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1056	PPCODE:	1352	PPCODE:
1057	{	1353	{
1058	dREQ;	1354	dREQ;
1059		1355
1060	req->type = EIO_WD_OPEN;	1356	req->type = EIO_WD_OPEN;
…		…
1062		1358
1063	REQ_SEND;	1359	REQ_SEND;
1064	}	1360	}
1065		1361
1066	void	1362	void
1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1363	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1068	PPCODE:	1364	PPCODE:
1069	{	1365	{
1070	dREQ;	1366	dREQ;
1071		1367
1072	req->type = EIO_OPEN;	1368	req->type = EIO_OPEN;
…		…
1076		1372
1077	REQ_SEND;	1373	REQ_SEND;
1078	}	1374	}
1079		1375
1080	void	1376	void
1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1377	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1082	ALIAS:	1378	ALIAS:
1083	aio_fsync = EIO_FSYNC	1379	aio_fsync = EIO_FSYNC
1084	aio_fdatasync = EIO_FDATASYNC	1380	aio_fdatasync = EIO_FDATASYNC
1085	aio_syncfs = EIO_SYNCFS	1381	aio_syncfs = EIO_SYNCFS
1086	PPCODE:	1382	PPCODE:
1087	{	1383	{
1088	int fd = s_fileno_croak (fh, 0);	1384	int fd = s_fileno_croak (fh, 0);
1089	dREQ;	1385	dREQ;
1090		1386
1091	req->type = ix;	1387	req->type = ix;
1092	req->sv1 = newSVsv (fh);	1388	req->sv1 = newSVsv (fh);
1093	req->int1 = fd;	1389	req->int1 = fd;
1094		1390
1095	REQ_SEND;	1391	REQ_SEND;
1096	}	1392	}
1097		1393
1098	void	1394	void
1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1395	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1100	PPCODE:	1396	PPCODE:
1101	{	1397	{
1102	int fd = s_fileno_croak (fh, 0);	1398	int fd = s_fileno_croak (fh, 0);
1103	dREQ;	1399	dREQ;
1104		1400
1105	req->type = EIO_SYNC_FILE_RANGE;	1401	req->type = EIO_SYNC_FILE_RANGE;
1106	req->sv1 = newSVsv (fh);	1402	req->sv1 = newSVsv (fh);
1107	req->int1 = fd;	1403	req->int1 = fd;
…		…
1111		1407
1112	REQ_SEND;	1408	REQ_SEND;
1113	}	1409	}
1114		1410
1115	void	1411	void
1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1412	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1117	PPCODE:	1413	PPCODE:
1118	{	1414	{
1119	int fd = s_fileno_croak (fh, 0);	1415	int fd = s_fileno_croak (fh, 0);
1120	dREQ;	1416	dREQ;
1121		1417
1122	req->type = EIO_FALLOCATE;	1418	req->type = EIO_FALLOCATE;
1123	req->sv1 = newSVsv (fh);	1419	req->sv1 = newSVsv (fh);
1124	req->int1 = fd;	1420	req->int1 = fd;
…		…
1128		1424
1129	REQ_SEND;	1425	REQ_SEND;
1130	}	1426	}
1131		1427
1132	void	1428	void
1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1429	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1134	PPCODE:	1430	PPCODE:
1135	{	1431	{
1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1432	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1137	int fd = s_fileno_croak (fh, 0);	1433	int fd = s_fileno_croak (fh, 0);
1138	dREQ;	1434	dREQ;
1139		1435
1140	if (expect_false (close_fd < 0))	1436	if (expect_false (close_fd < 0))
1141	{	1437	{
1142	int pipefd [2];	1438	int pipefd [2];
…		…
1162		1458
1163	REQ_SEND;	1459	REQ_SEND;
1164	}	1460	}
1165		1461
1166	void	1462	void
1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1463	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1168	PPCODE:	1464	PPCODE:
1169	{	1465	{
1170	int fd = s_fileno_croak (fh, 0);	1466	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1467	dREQ;
1172		1468
…		…
1178		1474
1179	REQ_SEND;	1475	REQ_SEND;
1180	}	1476	}
1181		1477
1182	void	1478	void
1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1184	ALIAS:	1480	ALIAS:
1185	aio_read = EIO_READ	1481	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1482	aio_write = EIO_WRITE
1187	PPCODE:	1483	PPCODE:
1188	{	1484	{
…		…
1204	len = svlen - dataoffset;	1500	len = svlen - dataoffset;
1205	}	1501	}
1206	else	1502	else
1207	{	1503	{
1208	/* read: check type and grow scalar as necessary */	1504	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1505	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1506	svptr = sv_grow (data, len + dataoffset + 1);
		1507	else if (SvCUR (data) < len + dataoffset)
		1508	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1509	}
1212		1510
1213	{	1511	{
1214	dREQ;	1512	dREQ;
1215		1513
…		…
1231	REQ_SEND;	1529	REQ_SEND;
1232	}	1530	}
1233	}	1531	}
1234		1532
1235	void	1533	void
		1534	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1535	ALIAS:
		1536	aio_ioctl = EIO_IOCTL
		1537	aio_fcntl = EIO_FCNTL
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	char *svptr;
		1542
		1543	if (SvPOK (arg) || !SvNIOK (arg))
		1544	{
		1545	STRLEN svlen;
		1546	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1547	#ifdef IOCPARM_LEN
		1548	STRLEN need = IOCPARM_LEN (request);
		1549	#else
		1550	STRLEN need = 256;
		1551	#endif
		1552
		1553	if (svlen < need)
		1554	svptr = SvGROW (arg, need);
		1555	}
		1556	else
		1557	svptr = (char *)SvIV (arg);
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = ix;
		1563	req->sv1 = newSVsv (fh);
		1564	req->int1 = fd;
		1565	req->int2 = (long)request;
		1566	req->sv2 = SvREFCNT_inc (arg);
		1567	req->ptr2 = svptr;
		1568
		1569	REQ_SEND;
		1570	}
		1571	}
		1572
		1573	void
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1574	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1575	ALIAS:
1238	aio_readlink = EIO_READLINK	1576	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1577	aio_realpath = EIO_REALPATH
1240	PPCODE:	1578	PPCODE:
1241	{	1579	{
…		…
1246		1584
1247	REQ_SEND;	1585	REQ_SEND;
1248	}	1586	}
1249		1587
1250	void	1588	void
1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1589	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1252	PPCODE:	1590	PPCODE:
1253	{	1591	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1592	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1593	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1594	dREQ;
1257		1595
1258	req->type = EIO_SENDFILE;	1596	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1597	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1598	req->int1 = ofd;
…		…
1265		1603
1266	REQ_SEND;	1604	REQ_SEND;
1267	}	1605	}
1268		1606
1269	void	1607	void
1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1608	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1271	PPCODE:	1609	PPCODE:
1272	{	1610	{
1273	int fd = s_fileno_croak (fh, 0);	1611	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1612	dREQ;
1275		1613
1276	req->type = EIO_READAHEAD;	1614	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1615	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1616	req->int1 = fd;
…		…
1281		1619
1282	REQ_SEND;	1620	REQ_SEND;
1283	}	1621	}
1284		1622
1285	void	1623	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1624	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1625	ALIAS:
1288	aio_stat = EIO_STAT	1626	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1627	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1628	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1629	PPCODE:
…		…
1294		1632
1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1633	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1296		1634
1297	REQ_SEND;	1635	REQ_SEND;
1298	}	1636	}
		1637
		1638	void
		1639	st_xtime ()
		1640	ALIAS:
		1641	st_atime = 1
		1642	st_mtime = 2
		1643	st_ctime = 4
		1644	st_xtime = 7
		1645	PPCODE:
		1646	EXTEND (SP, 3);
		1647	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1648	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1649	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1650
		1651	void
		1652	st_xtimensec ()
		1653	ALIAS:
		1654	st_atimensec = 1
		1655	st_mtimensec = 2
		1656	st_ctimensec = 4
		1657	st_xtimensec = 7
		1658	PPCODE:
		1659	EXTEND (SP, 3);
		1660	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1661	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1662	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1299		1663
1300	UV	1664	UV
1301	major (UV dev)	1665	major (UV dev)
1302	ALIAS:	1666	ALIAS:
1303	minor = 1	1667	minor = 1
1304	CODE:	1668	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1669	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1670	OUTPUT:
1307	RETVAL	1671	RETVAL
1308		1672
1309	UV	1673	UV
1310	makedev (UV maj, UV min)	1674	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1676	RETVAL = makedev (maj, min);
1313	OUTPUT:	1677	OUTPUT:
1314	RETVAL	1678	RETVAL
1315		1679
1316	void	1680	void
1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1681	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1318	PPCODE:	1682	PPCODE:
1319	{	1683	{
1320	dREQ;	1684	dREQ;
1321		1685
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1686	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1689
1326	REQ_SEND;	1690	REQ_SEND;
1327	}	1691	}
1328		1692
1329	void	1693	void
1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1694	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1331	PPCODE:	1695	PPCODE:
1332	{	1696	{
1333	dREQ;	1697	dREQ;
1334		1698
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1699	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1701
1338	REQ_SEND;	1702	REQ_SEND;
1339	}	1703	}
1340		1704
1341	void	1705	void
1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1706	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1343	PPCODE:	1707	PPCODE:
1344	{	1708	{
1345	dREQ;	1709	dREQ;
1346		1710
1347	req->int2 = mode;	1711	req->int2 = mode;
…		…
1349		1713
1350	REQ_SEND;	1714	REQ_SEND;
1351	}	1715	}
1352		1716
1353	void	1717	void
1354	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1718	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1355	PPCODE:	1719	PPCODE:
1356	{	1720	{
1357	dREQ;	1721	dREQ;
1358		1722
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1723	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1726
1363	REQ_SEND;	1727	REQ_SEND;
1364	}	1728	}
1365		1729
1366	void	1730	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1731	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1732	PPCODE:
1369	{	1733	{
1370	dREQ;	1734	dREQ;
1371		1735
1372	req->type = EIO_READDIR;	1736	req->type = EIO_READDIR;
…		…
1379		1743
1380	REQ_SEND;	1744	REQ_SEND;
1381	}	1745	}
1382		1746
1383	void	1747	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1748	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1749	PPCODE:
1386	{	1750	{
1387	dREQ;	1751	dREQ;
1388		1752
1389	req->type = EIO_MKDIR;	1753	req->type = EIO_MKDIR;
…		…
1392		1756
1393	REQ_SEND;	1757	REQ_SEND;
1394	}	1758	}
1395		1759
1396	void	1760	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1761	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1762	ALIAS:
1399	aio_unlink = EIO_UNLINK	1763	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1764	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1765	aio_readdir = EIO_READDIR
1402	PPCODE:	1766	PPCODE:
…		…
1408		1772
1409	REQ_SEND;	1773	REQ_SEND;
1410	}	1774	}
1411		1775
1412	void	1776	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1778	ALIAS:
1415	aio_link = EIO_LINK	1779	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1780	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1781	aio_rename = EIO_RENAME
1418	PPCODE:	1782	PPCODE:
…		…
1427		1791
1428	REQ_SEND;	1792	REQ_SEND;
1429	}	1793	}
1430		1794
1431	void	1795	void
		1796	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	eio_wd wd2 = 0;
		1800	dREQ;
		1801
		1802	req->type = EIO_RENAME;
		1803	req_set_path1 (req, oldpath);
		1804	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1805	req->int2 = flags;
		1806	req->int3 = (long)wd2;
		1807
		1808	REQ_SEND;
		1809	}
		1810
		1811	void
1432	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1433	PPCODE:	1813	PPCODE:
1434	{	1814	{
1435	dREQ;	1815	dREQ;
1436		1816
1437	req->type = EIO_MKNOD;	1817	req->type = EIO_MKNOD;
…		…
1441		1821
1442	REQ_SEND;	1822	REQ_SEND;
1443	}	1823	}
1444		1824
1445	void	1825	void
1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1826	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1447	ALIAS:	1827	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1828	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1829	aio_msync = EIO_MSYNC
1450	PPCODE:	1830	PPCODE:
1451	{	1831	{
1452	STRLEN svlen;	1832	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1833	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1834	UV len = SvUV (length);
		1835
		1836	if (flags < 0)
		1837	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1838
1456	if (offset < 0)	1839	if (offset < 0)
1457	offset += svlen;	1840	offset += svlen;
1458		1841
1459	if (offset < 0 || offset > svlen)	1842	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1857	REQ_SEND;
1475	}	1858	}
1476	}	1859	}
1477		1860
1478	void	1861	void
1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1862	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1480	PPCODE:	1863	PPCODE:
1481	{	1864	{
1482	STRLEN svlen;	1865	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1867	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1886	REQ_SEND;
1504	}	1887	}
1505	}	1888	}
1506		1889
1507	void	1890	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1891	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1892	PPCODE:
1510	{	1893	{
1511	dREQ;	1894	dREQ;
1512		1895
1513	req->type = EIO_MLOCKALL;	1896	req->type = EIO_MLOCKALL;
…		…
1515		1898
1516	REQ_SEND;	1899	REQ_SEND;
1517	}	1900	}
1518		1901
1519	void	1902	void
1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1903	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1521	PPCODE:	1904	PPCODE:
1522	{	1905	{
1523	int fd = s_fileno_croak (fh, 0);	1906	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1907	dREQ;
1525		1908
1526	req->type = EIO_CUSTOM;	1909	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1910	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1911	req->int1 = fd;
…		…
1538		1921
1539	REQ_SEND;	1922	REQ_SEND;
1540	}	1923	}
1541		1924
1542	void	1925	void
		1926	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1927	PPCODE:
		1928	{
		1929	char *svptr = 0;
		1930
		1931	sv_clear_foreign (data);
		1932
		1933	if (length) /* known length, directly read into scalar */
		1934	{
		1935	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1936	svptr = sv_grow (data, length + 1);
		1937	else if (SvCUR (data) < length)
		1938	croak ("length outside of scalar, and cannot grow");
		1939	else
		1940	svptr = SvPVbyte_nolen (data);
		1941	}
		1942
		1943	{
		1944	dREQ;
		1945
		1946	req->type = EIO_SLURP;
		1947	req_set_path1 (req, pathname);
		1948	req->offs = offset;
		1949	req->size = length;
		1950	req->sv2 = SvREFCNT_inc (data);
		1951	req->ptr2 = svptr;
		1952
		1953	if (!SvREADONLY (data))
		1954	{
		1955	SvREADONLY_on (data);
		1956	req->flags |= FLAG_SV2_RO_OFF;
		1957	}
		1958
		1959	REQ_SEND;
		1960	}
		1961	}
		1962
		1963	void
1543	aio_busy (double delay, SV *callback=&PL_sv_undef)	1964	aio_busy (double delay, SV *callback = &PL_sv_undef)
1544	PPCODE:	1965	PPCODE:
1545	{	1966	{
1546	dREQ;	1967	dREQ;
1547		1968
1548	req->type = EIO_BUSY;	1969	req->type = EIO_BUSY;
…		…
1550		1971
1551	REQ_SEND;	1972	REQ_SEND;
1552	}	1973	}
1553		1974
1554	void	1975	void
1555	aio_group (SV *callback=&PL_sv_undef)	1976	aio_group (SV *callback = &PL_sv_undef)
1556	PPCODE:	1977	PPCODE:
1557	{	1978	{
1558	dREQ;	1979	dREQ;
1559		1980
1560	req->type = EIO_GROUP;	1981	req->type = EIO_GROUP;
1561		1982
		1983	PUTBACK;
1562	req_submit (req);	1984	req_submit (req);
		1985	SPAGAIN;
		1986
1563	XPUSHs (req_sv (req, aio_grp_stash));	1987	XPUSHs (req_sv (req, aio_grp_stash));
1564	}	1988	}
1565		1989
1566	void	1990	void
1567	aio_nop (SV *callback=&PL_sv_undef)	1991	aio_nop (SV *callback = &PL_sv_undef)
1568	ALIAS:	1992	ALIAS:
1569	aio_nop = EIO_NOP	1993	aio_nop = EIO_NOP
1570	aio_sync = EIO_SYNC	1994	aio_sync = EIO_SYNC
1571	PPCODE:	1995	PPCODE:
1572	{	1996	{
…		…
1576		2000
1577	REQ_SEND;	2001	REQ_SEND;
1578	}	2002	}
1579		2003
1580	int	2004	int
1581	aioreq_pri (int pri = 0)	2005	aioreq_pri (int pri = NO_INIT)
1582	CODE:	2006	CODE:
1583	RETVAL = next_pri;	2007	RETVAL = next_pri;
1584	if (items > 0)	2008	if (items > 0)
1585	{	2009	{
1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2010	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2100	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1677	OUTPUT:	2101	OUTPUT:
1678	RETVAL	2102	RETVAL
1679		2103
1680	void	2104	void
1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2105	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1682	PPCODE:	2106	PPCODE:
1683	sv_unmagic (scalar, MMAP_MAGIC);	2107	sv_clear_foreign (scalar);
1684	{	2108	{
1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2109	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2110	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1687	if (addr == (void *)-1)	2111	if (addr == (void *)-1)
1688	XSRETURN_NO;	2112	XSRETURN_NO;
1689		2113
1690	sv_force_normal (scalar);	2114	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1691
1692	/* we store the length in mg_obj, as namlen is I32 :/ */
1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1694	->mg_obj = (SV *)length;
1695
1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
1697		2115
1698	if (!(prot & PROT_WRITE))	2116	if (!(prot & PROT_WRITE))
1699	SvREADONLY_on (scalar);	2117	SvREADONLY_on (scalar);
1700		2118
1701	if (SvLEN (scalar))
1702	Safefree (SvPVX (scalar));
1703
1704	SvPVX (scalar) = (char *)addr;
1705	SvCUR_set (scalar, length);
1706	SvLEN_set (scalar, 0);
1707	SvPOK_only (scalar);
1708
1709	XSRETURN_YES;	2119	XSRETURN_YES;
1710	}	2120	}
1711		2121
1712	void	2122	void
1713	munmap (SV *scalar)	2123	munmap (SV *scalar)
1714	CODE:	2124	CODE:
1715	sv_unmagic (scalar, MMAP_MAGIC);	2125	sv_clear_foreign (scalar);
		2126
		2127	SV *
		2128	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2129	CODE:
		2130	{
		2131	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2132	void *new;
		2133
		2134	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2135	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2136
		2137	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2138
		2139	RETVAL = &PL_sv_no;
		2140
		2141	if (new != (void *)-1)
		2142	{
		2143	RETVAL = new == (void *)mg->mg_ptr
		2144	? newSVpvn ("0 but true", 10)
		2145	: &PL_sv_yes;
		2146
		2147	mg->mg_ptr = (char *)new;
		2148	mg->mg_obj = (SV *)new_length;
		2149
		2150	SvPVX (scalar) = mg->mg_ptr;
		2151	SvCUR_set (scalar, new_length);
		2152	}
		2153	}
		2154	OUTPUT:
		2155	RETVAL
1716		2156
1717	int	2157	int
1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2158	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1719	ALIAS:	2159	ALIAS:
1720	mprotect = 1	2160	mprotect = 1
1721	CODE:	2161	CODE:
1722	{	2162	{
1723	STRLEN svlen;	2163	STRLEN svlen;
1724	void *addr = SvPVbyte (scalar, svlen);	2164	void *addr = SvPVbyte (scalar, svlen);
1725	size_t len = SvUV (length);	2165	STRLEN len = SvUV (length);
1726		2166
1727	if (offset < 0)	2167	if (offset < 0)
1728	offset += svlen;	2168	offset += svlen;
1729		2169
1730	if (offset < 0 || offset > svlen)	2170	if (offset < 0 || offset > svlen)
…		…
1744	}	2184	}
1745	OUTPUT:	2185	OUTPUT:
1746	RETVAL	2186	RETVAL
1747		2187
1748	int	2188	int
1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2189	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1750	CODE:	2190	CODE:
1751	{	2191	{
1752	STRLEN svlen;	2192	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2193	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2194	size_t len = SvUV (length);
1755		2195
1756	if (offset < 0)	2196	if (offset < 0)
1757	offset += svlen;	2197	offset += svlen;
1758		2198
…		…
1765	addr = (void *)(((intptr_t)addr) + offset);	2205	addr = (void *)(((intptr_t)addr) + offset);
1766	eio_page_align (&addr, &len);	2206	eio_page_align (&addr, &len);
1767	#if _POSIX_MEMLOCK_RANGE	2207	#if _POSIX_MEMLOCK_RANGE
1768	RETVAL = munlock (addr, len);	2208	RETVAL = munlock (addr, len);
1769	#else	2209	#else
1770	RETVAL = ((errno = ENOSYS), -1);	2210	RETVAL = EIO_ENOSYS ();
1771	#endif	2211	#endif
1772	}	2212	}
1773	OUTPUT:	2213	OUTPUT:
1774	RETVAL	2214	RETVAL
1775		2215
…		…
1777	munlockall ()	2217	munlockall ()
1778	CODE:	2218	CODE:
1779	#if _POSIX_MEMLOCK	2219	#if _POSIX_MEMLOCK
1780	munlockall ();	2220	munlockall ();
1781	#else	2221	#else
1782	RETVAL = -1;	2222	RETVAL = EIO_ENOSYS ();
1783	errno = ENOSYS;
1784	#endif	2223	#endif
1785	OUTPUT:	2224	OUTPUT:
1786	RETVAL	2225	RETVAL
		2226
		2227	int
		2228	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2229	CODE:
		2230	{
		2231	#if HAVE_LINUX_SPLICE
		2232	loff_t off_in_, off_out_;
		2233	RETVAL = splice (
		2234	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2235	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2236	length, flags
		2237	);
		2238	#else
		2239	RETVAL = EIO_ENOSYS ();
		2240	#endif
		2241	}
		2242	OUTPUT:
		2243	RETVAL
		2244
		2245	int
		2246	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2247	CODE:
		2248	#if HAVE_LINUX_SPLICE
		2249	RETVAL = tee (rfh, wfh, length, flags);
		2250	#else
		2251	RETVAL = EIO_ENOSYS ();
		2252	#endif
		2253	OUTPUT:
		2254	RETVAL
		2255
		2256	int
		2257	pipesize (aio_rfd rfh, int new_size = -1)
		2258	PROTOTYPE: $;$
		2259	CODE:
		2260	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2261	if (new_size >= 0)
		2262	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2263	else
		2264	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2265	#else
		2266	errno = ENOSYS;
		2267	RETVAL = -1;
		2268	#endif
		2269	OUTPUT:
		2270	RETVAL
		2271
		2272	void
		2273	pipe2 (int flags = 0)
		2274	PROTOTYPE: ;$
		2275	PPCODE:
		2276	{
		2277	int fd[2];
		2278	int res;
		2279
		2280	if (flags)
		2281	#if HAVE_PIPE2
		2282	res = pipe2 (fd, flags);
		2283	#else
		2284	res = (errno = ENOSYS, -1);
		2285	#endif
		2286	else
		2287	res = pipe (fd);
		2288
		2289	if (!res)
		2290	{
		2291	EXTEND (SP, 2);
		2292	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2293	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2294	}
		2295	}
		2296
		2297	void
		2298	eventfd (unsigned int initval = 0, int flags = 0)
		2299	PPCODE:
		2300	{
		2301	int fd;
		2302	#if HAVE_EVENTFD
		2303	fd = eventfd (initval, flags);
		2304	#else
		2305	fd = (errno = ENOSYS, -1);
		2306	#endif
		2307
		2308	XPUSHs (newmortalFH (fd, O_RDWR));
		2309	}
		2310
		2311	void
		2312	timerfd_create (int clockid, int flags = 0)
		2313	PPCODE:
		2314	{
		2315	int fd;
		2316	#if HAVE_TIMERFD
		2317	fd = timerfd_create (clockid, flags);
		2318	#else
		2319	fd = (errno = ENOSYS, -1);
		2320	#endif
		2321
		2322	XPUSHs (newmortalFH (fd, O_RDWR));
		2323	}
		2324
		2325	void
		2326	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2327	PPCODE:
		2328	{
		2329	int fd = s_fileno_croak (fh, 0);
		2330	#if HAVE_TIMERFD
		2331	int res;
		2332	struct itimerspec its, ots;
		2333
		2334	ts_set (&its.it_interval, interval);
		2335	ts_set (&its.it_value , value);
		2336	res = timerfd_settime (fd, flags, &its, &ots);
		2337
		2338	if (!res)
		2339	{
		2340	EXTEND (SP, 2);
		2341	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2342	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2343	}
		2344	#else
		2345	errno = ENOSYS;
		2346	#endif
		2347	}
		2348
		2349	void
		2350	timerfd_gettime (SV *fh)
		2351	PPCODE:
		2352	{
		2353	int fd = s_fileno_croak (fh, 0);
		2354	#if HAVE_TIMERFD
		2355	int res;
		2356	struct itimerspec ots;
		2357	res = timerfd_gettime (fd, &ots);
		2358
		2359	if (!res)
		2360	{
		2361	EXTEND (SP, 2);
		2362	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2363	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2364	}
		2365	#else
		2366	errno = ENOSYS;
		2367	#endif
		2368	}
		2369
		2370	UV
		2371	get_fdlimit ()
		2372	CODE:
		2373	#if HAVE_RLIMITS
		2374	struct rlimit rl;
		2375	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2376	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2377	#endif
		2378	XSRETURN_UNDEF;
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	void
		2383	min_fdlimit (UV limit = 0x7fffffffU)
		2384	CODE:
		2385	{
		2386	#if HAVE_RLIMITS
		2387	struct rlimit rl;
		2388	rlim_t orig_rlim_max;
		2389	UV bit;
		2390
		2391	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2392	goto fail;
		2393
		2394	if (rl.rlim_cur == RLIM_INFINITY)
		2395	XSRETURN_YES;
		2396
		2397	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2398
		2399	if (rl.rlim_cur < limit)
		2400	{
		2401	rl.rlim_cur = limit;
		2402
		2403	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2404	rl.rlim_max = rl.rlim_cur;
		2405	}
		2406
		2407	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_YES;
		2409
		2410	if (errno == EPERM)
		2411	{
		2412	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2413	/* our limit overflows a system-wide limit */
		2414	/* try an adaptive algorithm, but do not lower the hardlimit */
		2415	rl.rlim_max = 0;
		2416	for (bit = 0x40000000U; bit; bit >>= 1)
		2417	{
		2418	rl.rlim_max |= bit;
		2419	rl.rlim_cur = rl.rlim_max;
		2420
		2421	/* nevr decrease the hard limit */
		2422	if (rl.rlim_max < orig_rlim_max)
		2423	break;
		2424
		2425	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2426	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2427	}
		2428
		2429	/* now, raise the soft limit to the max permitted */
		2430	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2431	{
		2432	rl.rlim_cur = rl.rlim_max;
		2433	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2434	errno = EPERM;
		2435	}
		2436	}
		2437	#endif
		2438	fail:
		2439	XSRETURN_UNDEF;
		2440	}
1787		2441
1788	void _on_next_submit (SV *cb)	2442	void _on_next_submit (SV *cb)
1789	CODE:	2443	CODE:
1790	SvREFCNT_dec (on_next_submit);	2444	SvREFCNT_dec (on_next_submit);
1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2445	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1826	cancel (aio_req_ornot req)	2480	cancel (aio_req_ornot req)
1827	CODE:	2481	CODE:
1828	eio_cancel (req);	2482	eio_cancel (req);
1829		2483
1830	void	2484	void
1831	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2485	cb (aio_req_ornot req, SV *callback = NO_INIT)
1832	PPCODE:	2486	PPCODE:
1833	{	2487	{
1834	if (GIMME_V != G_VOID)	2488	if (GIMME_V != G_VOID)
1835	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2489	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1836		2490
1837	if (items > 1)	2491	if (items > 1)
1838	{	2492	{
1839	SV *cb_cv =get_cb (callback);	2493	SV *cb_cv = get_cb (callback);
1840		2494
1841	SvREFCNT_dec (req->callback);	2495	SvREFCNT_dec (req->callback);
1842	req->callback = SvREFCNT_inc (cb_cv);	2496	req->callback = SvREFCNT_inc (cb_cv);
1843	}	2497	}
1844	}	2498	}
…		…
1901	limit (aio_req grp, int limit)	2555	limit (aio_req grp, int limit)
1902	CODE:	2556	CODE:
1903	eio_grp_limit (grp, limit);	2557	eio_grp_limit (grp, limit);
1904		2558
1905	void	2559	void
1906	feed (aio_req grp, SV *callback=&PL_sv_undef)	2560	feed (aio_req grp, SV *callback = &PL_sv_undef)
1907	CODE:	2561	CODE:
1908	{	2562	{
1909	SvREFCNT_dec (grp->sv2);	2563	SvREFCNT_dec (grp->sv2);
1910	grp->sv2 = newSVsv (callback);	2564	grp->sv2 = newSVsv (callback);
1911	grp->feed = aio_grp_feed;	2565	grp->feed = aio_grp_feed;

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