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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC vs.
Revision 1.263 by root, Sun Aug 12 06:03:20 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
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	23	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	24	# include <sys/mman.h>
22	#endif	25	#endif
23		26
24	#if __linux__	27	/* the incompetent fool that created musl keeps __linux__, refuses
		28	* to implement any linux standard apis, and also has no way to test
		29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
		31	*/
		32	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	33	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	34	# ifdef FS_IOC_FIEMAP
		35	# include <linux/types.h>
27	# include <linux/fiemap.h>	36	# include <linux/fiemap.h>
28	# define HAVE_FIEMAP 1	37	# define HAVE_FIEMAP 1
29	# endif	38	# endif
30	#endif	39	#endif
31		40
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
100		109
101	/*****************************************************************************/	110	/*****************************************************************************/
102		111
		112	#include "config.h"
		113
		114	#if HAVE_ST_XTIMENSEC
		115	# define ATIMENSEC PL_statcache.st_atimensec
		116	# define MTIMENSEC PL_statcache.st_mtimensec
		117	# define CTIMENSEC PL_statcache.st_ctimensec
		118	#elif HAVE_ST_XTIMESPEC
		119	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		120	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		121	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		122	#else
		123	# define ATIMENSEC 0
		124	# define MTIMENSEC 0
		125	# define CTIMENSEC 0
		126	#endif
		127
		128	#include "schmorp.h"
		129
		130	#if HAVE_EVENTFD
		131	# include <sys/eventfd.h>
		132	#endif
		133
		134	#if HAVE_TIMERFD
		135	# include <sys/timerfd.h>
		136	#endif
		137
		138	#if HAVE_RLIMITS
		139	#include <sys/time.h>
		140	#include <sys/resource.h>
		141	#endif
		142
103	typedef SV SV8; /* byte-sv, used for argument-checking */	143	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	144	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	145	typedef int aio_wfd; /* write file descriptor */
106		146
107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;	147	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
…		…
113	STRLEN stroffset; \	153	STRLEN stroffset; \
114	SV *self;	154	SV *self;
115		155
116	#define EIO_NO_WRAPPERS 1	156	#define EIO_NO_WRAPPERS 1
117		157
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	158	#include "libeio/eio.h"
120		159
121	static int req_invoke (eio_req *req);	160	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	161	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	162	static void req_destroy (eio_req *grp);
…		…
139	# else	178	# else
140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	179	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141	# endif	180	# endif
142	#endif	181	#endif
143		182
144	/* defines all sorts of constants to 0 unless they are already defined */
145	#include "def0.h"
146
147	#ifndef makedev	183	#ifndef makedev
148	# define makedev(maj,min) (((maj) << 8) | (min))	184	# define makedev(maj,min) (((maj) << 8) | (min))
149	#endif	185	#endif
150	#ifndef major	186	#ifndef major
151	# define major(dev) ((dev) >> 8)	187	# define major(dev) ((dev) >> 8)
152	#endif	188	#endif
153	#ifndef minor	189	#ifndef minor
154	# define minor(dev) ((dev) & 0xff)	190	# define minor(dev) ((dev) & 0xff)
155	#endif	191	#endif
156		192
157	#ifndef PAGESIZE	193	#if PAGESIZE <= 0
158	# define PAGESIZE sysconf (_SC_PAGESIZE)	194	# define PAGESIZE sysconf (_SC_PAGESIZE)
159	#endif	195	#endif
		196
		197	/*****************************************************************************/
		198
		199	#if !_POSIX_MAPPED_FILES
		200	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		201	# define munmap(addr,length) EIO_ENOSYS ()
		202	#endif
		203
		204	#if !_POSIX_MEMORY_PROTECTION
		205	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !MREMAP_MAYMOVE
		209	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		210	#endif
		211
		212	#define FOREIGN_MAGIC PERL_MAGIC_ext
		213
		214	static int ecb_cold
		215	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		216	{
		217	int old_errno = errno;
		218	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		219	errno = old_errno;
		220
		221	mg->mg_obj = 0; /* just in case */
		222
		223	SvREADONLY_off (sv);
		224
		225	if (SvPVX (sv) != mg->mg_ptr)
		226	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		227
		228	SvCUR_set (sv, 0);
		229	SvPVX (sv) = 0;
		230	SvOK_off (sv);
		231
		232	return 0;
		233	}
		234
		235	static MGVTBL mmap_vtbl = {
		236	0, 0, 0, 0, mmap_free
		237	};
		238
		239	static int ecb_cold
		240	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		241	{
		242	free (mg->mg_ptr);
		243	mg->mg_obj = 0; /* just in case */
		244
		245	SvREADONLY_off (sv);
		246
		247	if (SvPVX (sv) != mg->mg_ptr)
		248	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		249
		250	SvCUR_set (sv, 0);
		251	SvPVX (sv) = 0;
		252	SvOK_off (sv);
		253
		254	return 0;
		255	}
		256
		257	static MGVTBL sysfree_vtbl = {
		258	0, 0, 0, 0, sysfree_free
		259	};
		260
		261	/*****************************************************************************/
		262
		263	/* helper: set scalar to foreign ptr with custom free */
		264	static void
		265	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		266	{
		267	sv_force_normal (sv);
		268
		269	/* we store the length in mg_obj, as namlen is I32 :/ */
		270	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		271	->mg_obj = (SV *)length;
		272
		273	SvUPGRADE (sv, SVt_PV); /* nop... */
		274
		275	if (SvLEN (sv))
		276	Safefree (SvPVX (sv));
		277
		278	SvPVX (sv) = (char *)addr;
		279	SvCUR_set (sv, length);
		280	SvLEN_set (sv, 0);
		281	SvPOK_only (sv);
		282	}
		283
		284	static void
		285	sv_clear_foreign (SV *sv)
		286	{
		287	/* todo: iterate over magic and only free ours, but of course */
		288	/* the perl5porters will call that (correct) behaviour buggy */
		289	sv_unmagic (sv, FOREIGN_MAGIC);
		290	}
		291
		292	/*****************************************************************************/
		293
		294	/* defines all sorts of constants to 0 unless they are already defined */
		295	/* also provides const_iv_ and const_niv_ macros for them */
		296	#include "def0.h"
160		297
161	/*****************************************************************************/	298	/*****************************************************************************/
162		299
163	static void	300	static void
164	fiemap (eio_req *req)	301	fiemap (eio_req *req)
165	{	302	{
166	req->result = -1;	303	req->result = -1;
167		304
168	#if HAVE_FIEMAP	305	#if HAVE_FIEMAP
		306	/* assume some c99 */
		307	struct fiemap *fiemap = 0;
		308	size_t end_offset;
169	int count = req->int3;	309	int count = req->int3;
170		310
171	/* heuristic: first try with 64 extents if we don't know how many, */	311	req->flags |= EIO_FLAG_PTR1_FREE;
172	/* as most files have (hopefully) fewer than this many extents */	312
173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	313	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		314	/* increase in 3.5kb steps */
174	if (count < 0)	315	if (count < 0)
175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	316	count = 8;
		317
		318	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		319	errno = ENOMEM;
		320	if (!fiemap)
		321	return;
		322
		323	req->ptr1 = fiemap;
		324
		325	fiemap->fm_start = req->offs;
		326	fiemap->fm_length = req->size;
		327	fiemap->fm_flags = req->int2;
		328	fiemap->fm_extent_count = count;
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		331	return;
		332
		333	if (req->int3 >= 0 /* not autosizing */
		334	|| !fiemap->fm_mapped_extents /* no more extents */
		335	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		336	goto done;
		337
		338	/* else we have to loop -
		339	* it would be tempting (actually I tried that first) to just query the
		340	* number of extents needed, but linux often feels like not returning all
		341	* extents, without telling us it left any out. this complicates
		342	* this quite a bit.
		343	*/
		344
		345	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
176		346
177	for (;;)	347	for (;;)
178	{	348	{
		349	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		350	char scratch[3072];
		351	struct fiemap *incmap = (struct fiemap *)scratch;
		352
		353	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		354	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		355	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		356	incmap->fm_flags = fiemap->fm_flags;
		357	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		360	return;
		361
		362	if (!incmap->fm_mapped_extents)
		363	goto done;
		364
		365	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	366	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
180	errno = ENOMEM;	367	errno = ENOMEM;
181	if (!fiemap)	368	if (!fiemap)
182	return;	369	return;
183		370
184	req->ptr1 = fiemap;	371	req->ptr1 = fiemap;
185	req->flags |= EIO_FLAG_PTR1_FREE;
186		372
187	fiemap->fm_start = req->offs;	373	for (count = 0; count < incmap->fm_mapped_extents; ++count)
188	fiemap->fm_length = req->size;	374	{
189	fiemap->fm_flags = req->int2;	375	struct fiemap_extent *e = incmap->fm_extents + count;
190	fiemap->fm_extent_count = count;
191		376
192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	377	if (e->fe_logical + e->fe_length >= end_offset)
193	return;	378	goto done;
194		379
195	if (req->int3 >= 0)	380	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
196	break; /* when not autosizing we are done */
197		381
198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	382	if (e->fe_flags & FIEMAP_EXTENT_LAST)
199	break; /* autosizing successful, we are done */	383	goto done;
200		384
201	fiemap->fm_flags = req->int2;	385	}
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	}	386	}
211		387
		388	done:
212	req->result = 0;	389	req->result = 0;
213		390
214	#else	391	#else
215	errno = ENOSYS;	392	errno = ENOSYS;
216	#endif	393	#endif
…		…
263	}	440	}
264		441
265	static SV *	442	static SV *
266	newSVaio_wd (aio_wd wd)	443	newSVaio_wd (aio_wd wd)
267	{	444	{
268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	445	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
269	}	446	}
270		447
271	static aio_req	448	static aio_req
272	SvAIO_REQ (SV *sv)	449	SvAIO_REQ (SV *sv)
273	{	450	{
…		…
292	|| SvTYPE (SvRV (sv)) != SVt_PVMG	469	|| SvTYPE (SvRV (sv)) != SVt_PVMG
293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	470	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	471	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
295		472
296	return (aio_wd)(long)SvIVX (SvRV (sv));	473	return (aio_wd)(long)SvIVX (SvRV (sv));
		474	}
		475
		476	static SV *
		477	newmortalFH (int fd, int flags)
		478	{
		479	if (fd < 0)
		480	return &PL_sv_undef;
		481
		482	GV *gv = (GV *)sv_newmortal ();
		483	char sym[64];
		484	int symlen;
		485
		486	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		487	gv_init (gv, aio_stash, sym, symlen, 0);
		488
		489	symlen = snprintf (
		490	sym,
		491	sizeof (sym),
		492	"%s&=%d",
		493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		494	fd
		495	);
		496
		497	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		498	? (SV *)gv : &PL_sv_undef;
297	}	499	}
298		500
299	static void	501	static void
300	aio_grp_feed (aio_req grp)	502	aio_grp_feed (aio_req grp)
301	{	503	{
…		…
429	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	631	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
430	}	632	}
431	break;	633	break;
432		634
433	case EIO_OPEN:	635	case EIO_OPEN:
434	{	636	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;	637	break;
463		638
464	case EIO_STATVFS:	639	case EIO_STATVFS:
465	case EIO_FSTATVFS:	640	case EIO_FSTATVFS:
466	{	641	{
…		…
469	#ifndef _WIN32	644	#ifndef _WIN32
470	if (req->result >= 0)	645	if (req->result >= 0)
471	{	646	{
472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	647	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
473	HV *hv = newHV ();	648	HV *hv = newHV ();
		649	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		650	* chooses to make it a struct.
		651	*/
		652	unsigned long fsid = 0;
		653	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
474		654
475	rv = sv_2mortal (newRV_noinc ((SV *)hv));	655	rv = sv_2mortal (newRV_noinc ((SV *)hv));
476		656
477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	657	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);	658	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);	660	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);	661	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);	662	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);	663	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);	664	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);	665	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	666	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);	667	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
488	}	668	}
489	#endif	669	#endif
490		670
…		…
541	SvSETMAGIC (req->sv2);	721	SvSETMAGIC (req->sv2);
542	PUSHs (sv_result);	722	PUSHs (sv_result);
543	}	723	}
544	break;	724	break;
545		725
		726	case EIO_SLURP:
		727	{
		728	if (req->result >= 0)
		729	{
		730	/* if length was originally not known, we steal the malloc'ed memory */
		731	if (req->flags & EIO_FLAG_PTR2_FREE)
		732	{
		733	req->flags &= ~EIO_FLAG_PTR2_FREE;
		734	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		735	}
		736	else
		737	{
		738	SvCUR_set (req->sv2, req->result);
		739	*SvEND (req->sv2) = 0;
		740	SvPOK_only (req->sv2);
		741	}
		742
		743	SvSETMAGIC (req->sv2);
		744	}
		745
		746	PUSHs (sv_result);
		747	}
		748	break;
		749
546	case EIO_CUSTOM:	750	case EIO_CUSTOM:
547	if (req->feed == fiemap)	751	if (req->feed == fiemap)
548	{	752	{
549	#if HAVE_FIEMAP	753	#if HAVE_FIEMAP
550	if (!req->result)	754	if (!req->result)
…		…
655	{	859	{
656	while (eio_nreqs ())	860	while (eio_nreqs ())
657	{	861	{
658	int size;	862	int size;
659		863
660	X_LOCK (reslock);	864	X_LOCK (EIO_POOL->reslock);
661	size = res_queue.size;	865	size = EIO_POOL->res_queue.size;
662	X_UNLOCK (reslock);	866	X_UNLOCK (EIO_POOL->reslock);
663		867
664	if (size)	868	if (size)
665	return;	869	return;
666		870
667	etp_maybe_start_thread ();	871	etp_maybe_start_thread (EIO_POOL);
668		872
669	s_epipe_wait (&respipe);	873	s_epipe_wait (&respipe);
670	}	874	}
671	}	875	}
672		876
…		…
693	create_respipe ();	897	create_respipe ();
694		898
695	if (eio_init (want_poll, done_poll) < 0)	899	if (eio_init (want_poll, done_poll) < 0)
696	croak ("IO::AIO: unable to initialise eio library");	900	croak ("IO::AIO: unable to initialise eio library");
697	}	901	}
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		902
742	/*****************************************************************************/	903	/*****************************************************************************/
743		904
744	static SV *	905	static SV *
745	get_cb (SV *cb_sv)	906	get_cb (SV *cb_sv)
…		…
841	req_set_path1 (req, fh_or_path);	1002	req_set_path1 (req, fh_or_path);
842	break;	1003	break;
843	}	1004	}
844	}	1005	}
845		1006
		1007	/*****************************************************************************/
		1008
		1009	static void
		1010	ts_set (struct timespec *ts, NV value)
		1011	{
		1012	ts->tv_sec = value;
		1013	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1014	}
		1015
		1016	static NV
		1017	ts_get (const struct timespec *ts)
		1018	{
		1019	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1020	}
		1021
		1022	/*****************************************************************************/
		1023
846	XS(boot_IO__AIO) ecb_cold;	1024	XS(boot_IO__AIO) ecb_cold;
847		1025
848	MODULE = IO::AIO PACKAGE = IO::AIO	1026	MODULE = IO::AIO PACKAGE = IO::AIO
849		1027
850	PROTOTYPES: ENABLE	1028	PROTOTYPES: ENABLE
…		…
857	} *civ, const_iv[] = {	1035	} *civ, const_iv[] = {
858	# define const_niv(name, value) { # name, (IV) value },	1036	# define const_niv(name, value) { # name, (IV) value },
859	# define const_iv(name) { # name, (IV) name },	1037	# define const_iv(name) { # name, (IV) name },
860	# define const_eio(name) { # name, (IV) EIO_ ## name },	1038	# define const_eio(name) { # name, (IV) EIO_ ## name },
861		1039
862	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1040	/* you have to re-run ./gendef0 after adding/removing any constants here */
863		1041	/* the first block can be undef if missing */
864	const_iv (ENOSYS)	1042	const_iv (ENOSYS)
865	const_iv (EXDEV)	1043	const_iv (EXDEV)
866	const_iv (EBADR)	1044	const_iv (EBADR)
		1045
		1046	/* for lseek */
		1047	const_iv (SEEK_DATA)
		1048	const_iv (SEEK_HOLE)
		1049
		1050	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1051	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1052	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1053	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1054	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1055	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1056
		1057	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1058	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1059	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1060	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1061	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1062
		1063	/* the second block will be 0 when missing */
		1064	const_iv (O_ACCMODE)
867		1065
868	const_iv (O_RDONLY)	1066	const_iv (O_RDONLY)
869	const_iv (O_WRONLY)	1067	const_iv (O_WRONLY)
870	const_iv (O_RDWR)	1068	const_iv (O_RDWR)
871	const_iv (O_CREAT)	1069	const_iv (O_CREAT)
…		…
885	const_iv (O_SEARCH)	1083	const_iv (O_SEARCH)
886	const_iv (O_DIRECTORY)	1084	const_iv (O_DIRECTORY)
887	const_iv (O_DSYNC)	1085	const_iv (O_DSYNC)
888	const_iv (O_RSYNC)	1086	const_iv (O_RSYNC)
889	const_iv (O_SYNC)	1087	const_iv (O_SYNC)
		1088	const_iv (O_PATH)
		1089	const_iv (O_TMPFILE)
890	const_iv (O_TTY_INIT)	1090	const_iv (O_TTY_INIT)
891		1091
892	const_iv (S_IFIFO)	1092	const_iv (S_IFIFO)
893	const_iv (S_IFCHR)	1093	const_iv (S_IFCHR)
894	const_iv (S_IFBLK)	1094	const_iv (S_IFBLK)
…		…
896	const_iv (S_IFREG)	1096	const_iv (S_IFREG)
897	const_iv (S_IFDIR)	1097	const_iv (S_IFDIR)
898	const_iv (S_IFWHT)	1098	const_iv (S_IFWHT)
899	const_iv (S_IFSOCK)	1099	const_iv (S_IFSOCK)
900	const_iv (S_IFMT)	1100	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		1101
915	const_iv (ST_RDONLY)	1102	const_iv (ST_RDONLY)
916	const_iv (ST_NOSUID)	1103	const_iv (ST_NOSUID)
917	const_iv (ST_NODEV)	1104	const_iv (ST_NODEV)
918	const_iv (ST_NOEXEC)	1105	const_iv (ST_NOEXEC)
…		…
928	const_iv (PROT_NONE)	1115	const_iv (PROT_NONE)
929	const_iv (PROT_EXEC)	1116	const_iv (PROT_EXEC)
930	const_iv (PROT_READ)	1117	const_iv (PROT_READ)
931	const_iv (PROT_WRITE)	1118	const_iv (PROT_WRITE)
932		1119
933	/*const_iv (MAP_FIXED)*/
934	const_iv (MAP_PRIVATE)	1120	const_iv (MAP_PRIVATE)
935	const_iv (MAP_SHARED)	1121	const_iv (MAP_SHARED)
		1122	const_iv (MAP_FIXED)
936	const_iv (MAP_ANONYMOUS)	1123	const_iv (MAP_ANONYMOUS)
937		1124
938	/* linuxish */	1125	/* linuxish */
939	const_iv (MAP_HUGETLB)
940	const_iv (MAP_LOCKED)	1126	const_iv (MAP_LOCKED)
941	const_iv (MAP_NORESERVE)	1127	const_iv (MAP_NORESERVE)
942	const_iv (MAP_POPULATE)	1128	const_iv (MAP_POPULATE)
943	const_iv (MAP_NONBLOCK)	1129	const_iv (MAP_NONBLOCK)
		1130	const_iv (MAP_GROWSDOWN)
		1131	const_iv (MAP_32BIT)
		1132	const_iv (MAP_HUGETLB)
		1133	const_iv (MAP_STACK)
		1134
		1135	const_iv (MREMAP_MAYMOVE)
		1136	const_iv (MREMAP_FIXED)
		1137
		1138	const_iv (F_DUPFD_CLOEXEC)
		1139
		1140	const_iv (MSG_CMSG_CLOEXEC)
		1141	const_iv (SOCK_CLOEXEC)
		1142
		1143	const_iv (F_OFD_GETLK)
		1144	const_iv (F_OFD_SETLK)
		1145	const_iv (F_OFD_GETLKW)
		1146
		1147	const_iv (FIFREEZE)
		1148	const_iv (FITHAW)
		1149	const_iv (FITRIM)
		1150	const_iv (FICLONE)
		1151	const_iv (FICLONERANGE)
		1152	const_iv (FIDEDUPERANGE)
		1153
		1154	const_iv (FS_IOC_GETFLAGS)
		1155	const_iv (FS_IOC_SETFLAGS)
		1156	const_iv (FS_IOC_GETVERSION)
		1157	const_iv (FS_IOC_SETVERSION)
		1158	const_iv (FS_IOC_FIEMAP)
		1159	const_iv (FS_IOC_FSGETXATTR)
		1160	const_iv (FS_IOC_FSSETXATTR)
		1161	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1162	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1163	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1164
		1165	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1166
		1167	const_iv (FS_SECRM_FL)
		1168	const_iv (FS_UNRM_FL)
		1169	const_iv (FS_COMPR_FL)
		1170	const_iv (FS_SYNC_FL)
		1171	const_iv (FS_IMMUTABLE_FL)
		1172	const_iv (FS_APPEND_FL)
		1173	const_iv (FS_NODUMP_FL)
		1174	const_iv (FS_NOATIME_FL)
		1175	const_iv (FS_DIRTY_FL)
		1176	const_iv (FS_COMPRBLK_FL)
		1177	const_iv (FS_NOCOMP_FL)
		1178	const_iv (FS_ENCRYPT_FL)
		1179	const_iv (FS_BTREE_FL)
		1180	const_iv (FS_INDEX_FL)
		1181	const_iv (FS_JOURNAL_DATA_FL)
		1182	const_iv (FS_NOTAIL_FL)
		1183	const_iv (FS_DIRSYNC_FL)
		1184	const_iv (FS_TOPDIR_FL)
		1185	const_iv (FS_FL_USER_MODIFIABLE)
		1186
		1187	const_iv (FS_XFLAG_REALTIME)
		1188	const_iv (FS_XFLAG_PREALLOC)
		1189	const_iv (FS_XFLAG_IMMUTABLE)
		1190	const_iv (FS_XFLAG_APPEND)
		1191	const_iv (FS_XFLAG_SYNC)
		1192	const_iv (FS_XFLAG_NOATIME)
		1193	const_iv (FS_XFLAG_NODUMP)
		1194	const_iv (FS_XFLAG_RTINHERIT)
		1195	const_iv (FS_XFLAG_PROJINHERIT)
		1196	const_iv (FS_XFLAG_NOSYMLINKS)
		1197	const_iv (FS_XFLAG_EXTSIZE)
		1198	const_iv (FS_XFLAG_EXTSZINHERIT)
		1199	const_iv (FS_XFLAG_NODEFRAG)
		1200	const_iv (FS_XFLAG_FILESTREAM)
		1201	const_iv (FS_XFLAG_DAX)
		1202	const_iv (FS_XFLAG_HASATTR)
944		1203
945	const_iv (FIEMAP_FLAG_SYNC)	1204	const_iv (FIEMAP_FLAG_SYNC)
946	const_iv (FIEMAP_FLAG_XATTR)	1205	const_iv (FIEMAP_FLAG_XATTR)
947	const_iv (FIEMAP_FLAGS_COMPAT)	1206	const_iv (FIEMAP_FLAGS_COMPAT)
948	const_iv (FIEMAP_EXTENT_LAST)	1207	const_iv (FIEMAP_EXTENT_LAST)
…		…
955	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1214	const_iv (FIEMAP_EXTENT_DATA_TAIL)
956	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1215	const_iv (FIEMAP_EXTENT_UNWRITTEN)
957	const_iv (FIEMAP_EXTENT_MERGED)	1216	const_iv (FIEMAP_EXTENT_MERGED)
958	const_iv (FIEMAP_EXTENT_SHARED)	1217	const_iv (FIEMAP_EXTENT_SHARED)
959		1218
		1219	const_iv (SPLICE_F_MOVE)
		1220	const_iv (SPLICE_F_NONBLOCK)
		1221	const_iv (SPLICE_F_MORE)
		1222	const_iv (SPLICE_F_GIFT)
		1223
		1224	const_iv (EFD_CLOEXEC)
		1225	const_iv (EFD_NONBLOCK)
		1226	const_iv (EFD_SEMAPHORE)
		1227
		1228	const_iv (CLOCK_REALTIME)
		1229	const_iv (CLOCK_MONOTONIC)
		1230	const_iv (CLOCK_BOOTTIME)
		1231	const_iv (CLOCK_REALTIME_ALARM)
		1232	const_iv (CLOCK_BOOTTIME_ALARM)
		1233
		1234	const_iv (TFD_NONBLOCK)
		1235	const_iv (TFD_CLOEXEC)
		1236
		1237	const_iv (TFD_TIMER_ABSTIME)
		1238	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1239
		1240	/* these are libeio constants, and are independent of gendef0 */
960	const_eio (SEEK_SET)	1241	const_eio (SEEK_SET)
961	const_eio (SEEK_CUR)	1242	const_eio (SEEK_CUR)
962	const_eio (SEEK_END)	1243	const_eio (SEEK_END)
963		1244
964	const_eio (MCL_FUTURE)	1245	const_eio (MCL_FUTURE)
…		…
973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1254	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
974	const_eio (SYNC_FILE_RANGE_WRITE)	1255	const_eio (SYNC_FILE_RANGE_WRITE)
975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1256	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
976		1257
977	const_eio (FALLOC_FL_KEEP_SIZE)	1258	const_eio (FALLOC_FL_KEEP_SIZE)
		1259	const_eio (FALLOC_FL_PUNCH_HOLE)
		1260	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1261	const_eio (FALLOC_FL_ZERO_RANGE)
		1262	const_eio (FALLOC_FL_INSERT_RANGE)
		1263	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1264
		1265	const_eio (RENAME_NOREPLACE)
		1266	const_eio (RENAME_EXCHANGE)
		1267	const_eio (RENAME_WHITEOUT)
978		1268
979	const_eio (READDIR_DENTS)	1269	const_eio (READDIR_DENTS)
980	const_eio (READDIR_DIRS_FIRST)	1270	const_eio (READDIR_DIRS_FIRST)
981	const_eio (READDIR_STAT_ORDER)	1271	const_eio (READDIR_STAT_ORDER)
982	const_eio (READDIR_FOUND_UNKNOWN)	1272	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1050	PROTOTYPE: $	1340	PROTOTYPE: $
1051	CODE:	1341	CODE:
1052	max_outstanding = maxreqs;	1342	max_outstanding = maxreqs;
1053		1343
1054	void	1344	void
1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1345	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1056	PPCODE:	1346	PPCODE:
1057	{	1347	{
1058	dREQ;	1348	dREQ;
1059		1349
1060	req->type = EIO_WD_OPEN;	1350	req->type = EIO_WD_OPEN;
…		…
1062		1352
1063	REQ_SEND;	1353	REQ_SEND;
1064	}	1354	}
1065		1355
1066	void	1356	void
1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1357	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1068	PPCODE:	1358	PPCODE:
1069	{	1359	{
1070	dREQ;	1360	dREQ;
1071		1361
1072	req->type = EIO_OPEN;	1362	req->type = EIO_OPEN;
…		…
1076		1366
1077	REQ_SEND;	1367	REQ_SEND;
1078	}	1368	}
1079		1369
1080	void	1370	void
1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1371	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1082	ALIAS:	1372	ALIAS:
1083	aio_fsync = EIO_FSYNC	1373	aio_fsync = EIO_FSYNC
1084	aio_fdatasync = EIO_FDATASYNC	1374	aio_fdatasync = EIO_FDATASYNC
1085	aio_syncfs = EIO_SYNCFS	1375	aio_syncfs = EIO_SYNCFS
1086	PPCODE:	1376	PPCODE:
1087	{	1377	{
1088	int fd = s_fileno_croak (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
1089	dREQ;	1379	dREQ;
1090		1380
1091	req->type = ix;	1381	req->type = ix;
1092	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
1093	req->int1 = fd;	1383	req->int1 = fd;
1094		1384
1095	REQ_SEND;	1385	REQ_SEND;
1096	}	1386	}
1097		1387
1098	void	1388	void
1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1389	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1100	PPCODE:	1390	PPCODE:
1101	{	1391	{
1102	int fd = s_fileno_croak (fh, 0);	1392	int fd = s_fileno_croak (fh, 0);
1103	dREQ;	1393	dREQ;
1104		1394
1105	req->type = EIO_SYNC_FILE_RANGE;	1395	req->type = EIO_SYNC_FILE_RANGE;
1106	req->sv1 = newSVsv (fh);	1396	req->sv1 = newSVsv (fh);
1107	req->int1 = fd;	1397	req->int1 = fd;
…		…
1111		1401
1112	REQ_SEND;	1402	REQ_SEND;
1113	}	1403	}
1114		1404
1115	void	1405	void
1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1406	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1117	PPCODE:	1407	PPCODE:
1118	{	1408	{
1119	int fd = s_fileno_croak (fh, 0);	1409	int fd = s_fileno_croak (fh, 0);
1120	dREQ;	1410	dREQ;
1121		1411
1122	req->type = EIO_FALLOCATE;	1412	req->type = EIO_FALLOCATE;
1123	req->sv1 = newSVsv (fh);	1413	req->sv1 = newSVsv (fh);
1124	req->int1 = fd;	1414	req->int1 = fd;
…		…
1128		1418
1129	REQ_SEND;	1419	REQ_SEND;
1130	}	1420	}
1131		1421
1132	void	1422	void
1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1423	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1134	PPCODE:	1424	PPCODE:
1135	{	1425	{
1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1426	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1137	int fd = s_fileno_croak (fh, 0);	1427	int fd = s_fileno_croak (fh, 0);
1138	dREQ;	1428	dREQ;
1139		1429
1140	if (expect_false (close_fd < 0))	1430	if (expect_false (close_fd < 0))
1141	{	1431	{
1142	int pipefd [2];	1432	int pipefd [2];
…		…
1162		1452
1163	REQ_SEND;	1453	REQ_SEND;
1164	}	1454	}
1165		1455
1166	void	1456	void
1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1457	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1168	PPCODE:	1458	PPCODE:
1169	{	1459	{
1170	int fd = s_fileno_croak (fh, 0);	1460	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1461	dREQ;
1172		1462
…		…
1178		1468
1179	REQ_SEND;	1469	REQ_SEND;
1180	}	1470	}
1181		1471
1182	void	1472	void
1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1473	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1184	ALIAS:	1474	ALIAS:
1185	aio_read = EIO_READ	1475	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1476	aio_write = EIO_WRITE
1187	PPCODE:	1477	PPCODE:
1188	{	1478	{
…		…
1204	len = svlen - dataoffset;	1494	len = svlen - dataoffset;
1205	}	1495	}
1206	else	1496	else
1207	{	1497	{
1208	/* read: check type and grow scalar as necessary */	1498	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1499	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1500	svptr = sv_grow (data, len + dataoffset + 1);
		1501	else if (SvCUR (data) < len + dataoffset)
		1502	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1503	}
1212		1504
1213	{	1505	{
1214	dREQ;	1506	dREQ;
1215		1507
…		…
1231	REQ_SEND;	1523	REQ_SEND;
1232	}	1524	}
1233	}	1525	}
1234		1526
1235	void	1527	void
		1528	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1529	ALIAS:
		1530	aio_ioctl = EIO_IOCTL
		1531	aio_fcntl = EIO_FCNTL
		1532	PPCODE:
		1533	{
		1534	int fd = s_fileno_croak (fh, 0);
		1535	char *svptr;
		1536
		1537	if (SvPOK (arg) || !SvNIOK (arg))
		1538	{
		1539	STRLEN svlen;
		1540	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1541	#ifdef IOCPARM_LEN
		1542	STRLEN need = IOCPARM_LEN (request);
		1543	#else
		1544	STRLEN need = 256;
		1545	#endif
		1546
		1547	if (svlen < need)
		1548	svptr = SvGROW (arg, need);
		1549	}
		1550	else
		1551	svptr = (char *)SvIV (arg);
		1552
		1553	{
		1554	dREQ;
		1555
		1556	req->type = ix;
		1557	req->sv1 = newSVsv (fh);
		1558	req->int1 = fd;
		1559	req->int2 = (long)request;
		1560	req->sv2 = SvREFCNT_inc (arg);
		1561	req->ptr2 = svptr;
		1562
		1563	REQ_SEND;
		1564	}
		1565	}
		1566
		1567	void
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1568	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1569	ALIAS:
1238	aio_readlink = EIO_READLINK	1570	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1571	aio_realpath = EIO_REALPATH
1240	PPCODE:	1572	PPCODE:
1241	{	1573	{
…		…
1246		1578
1247	REQ_SEND;	1579	REQ_SEND;
1248	}	1580	}
1249		1581
1250	void	1582	void
1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1583	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1252	PPCODE:	1584	PPCODE:
1253	{	1585	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1586	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1587	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1588	dREQ;
1257		1589
1258	req->type = EIO_SENDFILE;	1590	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1591	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1592	req->int1 = ofd;
…		…
1265		1597
1266	REQ_SEND;	1598	REQ_SEND;
1267	}	1599	}
1268		1600
1269	void	1601	void
1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1602	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1271	PPCODE:	1603	PPCODE:
1272	{	1604	{
1273	int fd = s_fileno_croak (fh, 0);	1605	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1606	dREQ;
1275		1607
1276	req->type = EIO_READAHEAD;	1608	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1609	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1610	req->int1 = fd;
…		…
1281		1613
1282	REQ_SEND;	1614	REQ_SEND;
1283	}	1615	}
1284		1616
1285	void	1617	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1618	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1619	ALIAS:
1288	aio_stat = EIO_STAT	1620	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1621	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1622	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1623	PPCODE:
…		…
1294		1626
1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1627	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1296		1628
1297	REQ_SEND;	1629	REQ_SEND;
1298	}	1630	}
		1631
		1632	void
		1633	st_xtime ()
		1634	ALIAS:
		1635	st_atime = 1
		1636	st_mtime = 2
		1637	st_ctime = 4
		1638	st_xtime = 7
		1639	PPCODE:
		1640	EXTEND (SP, 3);
		1641	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1642	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1643	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1644
		1645	void
		1646	st_xtimensec ()
		1647	ALIAS:
		1648	st_atimensec = 1
		1649	st_mtimensec = 2
		1650	st_ctimensec = 4
		1651	st_xtimensec = 7
		1652	PPCODE:
		1653	EXTEND (SP, 3);
		1654	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1655	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1656	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1299		1657
1300	UV	1658	UV
1301	major (UV dev)	1659	major (UV dev)
1302	ALIAS:	1660	ALIAS:
1303	minor = 1	1661	minor = 1
1304	CODE:	1662	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1663	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1664	OUTPUT:
1307	RETVAL	1665	RETVAL
1308		1666
1309	UV	1667	UV
1310	makedev (UV maj, UV min)	1668	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1670	RETVAL = makedev (maj, min);
1313	OUTPUT:	1671	OUTPUT:
1314	RETVAL	1672	RETVAL
1315		1673
1316	void	1674	void
1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1675	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1318	PPCODE:	1676	PPCODE:
1319	{	1677	{
1320	dREQ;	1678	dREQ;
1321		1679
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1680	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1683
1326	REQ_SEND;	1684	REQ_SEND;
1327	}	1685	}
1328		1686
1329	void	1687	void
1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1688	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1331	PPCODE:	1689	PPCODE:
1332	{	1690	{
1333	dREQ;	1691	dREQ;
1334		1692
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1693	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1695
1338	REQ_SEND;	1696	REQ_SEND;
1339	}	1697	}
1340		1698
1341	void	1699	void
1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1700	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1343	PPCODE:	1701	PPCODE:
1344	{	1702	{
1345	dREQ;	1703	dREQ;
1346		1704
1347	req->int2 = mode;	1705	req->int2 = mode;
…		…
1349		1707
1350	REQ_SEND;	1708	REQ_SEND;
1351	}	1709	}
1352		1710
1353	void	1711	void
1354	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1712	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1355	PPCODE:	1713	PPCODE:
1356	{	1714	{
1357	dREQ;	1715	dREQ;
1358		1716
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1717	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1720
1363	REQ_SEND;	1721	REQ_SEND;
1364	}	1722	}
1365		1723
1366	void	1724	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1725	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1726	PPCODE:
1369	{	1727	{
1370	dREQ;	1728	dREQ;
1371		1729
1372	req->type = EIO_READDIR;	1730	req->type = EIO_READDIR;
…		…
1379		1737
1380	REQ_SEND;	1738	REQ_SEND;
1381	}	1739	}
1382		1740
1383	void	1741	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1742	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1743	PPCODE:
1386	{	1744	{
1387	dREQ;	1745	dREQ;
1388		1746
1389	req->type = EIO_MKDIR;	1747	req->type = EIO_MKDIR;
…		…
1392		1750
1393	REQ_SEND;	1751	REQ_SEND;
1394	}	1752	}
1395		1753
1396	void	1754	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1755	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1756	ALIAS:
1399	aio_unlink = EIO_UNLINK	1757	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1758	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1759	aio_readdir = EIO_READDIR
1402	PPCODE:	1760	PPCODE:
…		…
1408		1766
1409	REQ_SEND;	1767	REQ_SEND;
1410	}	1768	}
1411		1769
1412	void	1770	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1771	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1772	ALIAS:
1415	aio_link = EIO_LINK	1773	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1774	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1775	aio_rename = EIO_RENAME
1418	PPCODE:	1776	PPCODE:
…		…
1427		1785
1428	REQ_SEND;	1786	REQ_SEND;
1429	}	1787	}
1430		1788
1431	void	1789	void
		1790	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1791	PPCODE:
		1792	{
		1793	eio_wd wd2 = 0;
		1794	dREQ;
		1795
		1796	req->type = EIO_RENAME;
		1797	req_set_path1 (req, oldpath);
		1798	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1799	req->int2 = flags;
		1800	req->int3 = (long)wd2;
		1801
		1802	REQ_SEND;
		1803	}
		1804
		1805	void
1432	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1806	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1433	PPCODE:	1807	PPCODE:
1434	{	1808	{
1435	dREQ;	1809	dREQ;
1436		1810
1437	req->type = EIO_MKNOD;	1811	req->type = EIO_MKNOD;
…		…
1441		1815
1442	REQ_SEND;	1816	REQ_SEND;
1443	}	1817	}
1444		1818
1445	void	1819	void
1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1820	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1447	ALIAS:	1821	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1822	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1823	aio_msync = EIO_MSYNC
1450	PPCODE:	1824	PPCODE:
1451	{	1825	{
1452	STRLEN svlen;	1826	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1827	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1828	UV len = SvUV (length);
		1829
		1830	if (flags < 0)
		1831	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1832
1456	if (offset < 0)	1833	if (offset < 0)
1457	offset += svlen;	1834	offset += svlen;
1458		1835
1459	if (offset < 0 || offset > svlen)	1836	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1851	REQ_SEND;
1475	}	1852	}
1476	}	1853	}
1477		1854
1478	void	1855	void
1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1856	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1480	PPCODE:	1857	PPCODE:
1481	{	1858	{
1482	STRLEN svlen;	1859	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1860	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1861	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1880	REQ_SEND;
1504	}	1881	}
1505	}	1882	}
1506		1883
1507	void	1884	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1885	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1886	PPCODE:
1510	{	1887	{
1511	dREQ;	1888	dREQ;
1512		1889
1513	req->type = EIO_MLOCKALL;	1890	req->type = EIO_MLOCKALL;
…		…
1515		1892
1516	REQ_SEND;	1893	REQ_SEND;
1517	}	1894	}
1518		1895
1519	void	1896	void
1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1897	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1521	PPCODE:	1898	PPCODE:
1522	{	1899	{
1523	int fd = s_fileno_croak (fh, 0);	1900	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1901	dREQ;
1525		1902
1526	req->type = EIO_CUSTOM;	1903	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1904	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1905	req->int1 = fd;
…		…
1538		1915
1539	REQ_SEND;	1916	REQ_SEND;
1540	}	1917	}
1541		1918
1542	void	1919	void
		1920	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1921	PPCODE:
		1922	{
		1923	char *svptr = 0;
		1924
		1925	sv_clear_foreign (data);
		1926
		1927	if (length) /* known length, directly read into scalar */
		1928	{
		1929	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1930	svptr = sv_grow (data, length + 1);
		1931	else if (SvCUR (data) < length)
		1932	croak ("length outside of scalar, and cannot grow");
		1933	else
		1934	svptr = SvPVbyte_nolen (data);
		1935	}
		1936
		1937	{
		1938	dREQ;
		1939
		1940	req->type = EIO_SLURP;
		1941	req_set_path1 (req, pathname);
		1942	req->offs = offset;
		1943	req->size = length;
		1944	req->sv2 = SvREFCNT_inc (data);
		1945	req->ptr2 = svptr;
		1946
		1947	if (!SvREADONLY (data))
		1948	{
		1949	SvREADONLY_on (data);
		1950	req->flags |= FLAG_SV2_RO_OFF;
		1951	}
		1952
		1953	REQ_SEND;
		1954	}
		1955	}
		1956
		1957	void
1543	aio_busy (double delay, SV *callback=&PL_sv_undef)	1958	aio_busy (double delay, SV *callback = &PL_sv_undef)
1544	PPCODE:	1959	PPCODE:
1545	{	1960	{
1546	dREQ;	1961	dREQ;
1547		1962
1548	req->type = EIO_BUSY;	1963	req->type = EIO_BUSY;
…		…
1550		1965
1551	REQ_SEND;	1966	REQ_SEND;
1552	}	1967	}
1553		1968
1554	void	1969	void
1555	aio_group (SV *callback=&PL_sv_undef)	1970	aio_group (SV *callback = &PL_sv_undef)
1556	PPCODE:	1971	PPCODE:
1557	{	1972	{
1558	dREQ;	1973	dREQ;
1559		1974
1560	req->type = EIO_GROUP;	1975	req->type = EIO_GROUP;
1561		1976
		1977	PUTBACK;
1562	req_submit (req);	1978	req_submit (req);
		1979	SPAGAIN;
		1980
1563	XPUSHs (req_sv (req, aio_grp_stash));	1981	XPUSHs (req_sv (req, aio_grp_stash));
1564	}	1982	}
1565		1983
1566	void	1984	void
1567	aio_nop (SV *callback=&PL_sv_undef)	1985	aio_nop (SV *callback = &PL_sv_undef)
1568	ALIAS:	1986	ALIAS:
1569	aio_nop = EIO_NOP	1987	aio_nop = EIO_NOP
1570	aio_sync = EIO_SYNC	1988	aio_sync = EIO_SYNC
1571	PPCODE:	1989	PPCODE:
1572	{	1990	{
…		…
1576		1994
1577	REQ_SEND;	1995	REQ_SEND;
1578	}	1996	}
1579		1997
1580	int	1998	int
1581	aioreq_pri (int pri = 0)	1999	aioreq_pri (int pri = NO_INIT)
1582	CODE:	2000	CODE:
1583	RETVAL = next_pri;	2001	RETVAL = next_pri;
1584	if (items > 0)	2002	if (items > 0)
1585	{	2003	{
1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2004	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2094	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1677	OUTPUT:	2095	OUTPUT:
1678	RETVAL	2096	RETVAL
1679		2097
1680	void	2098	void
1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2099	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1682	PPCODE:	2100	PPCODE:
1683	sv_unmagic (scalar, MMAP_MAGIC);	2101	sv_clear_foreign (scalar);
1684	{	2102	{
1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2103	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2104	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1687	if (addr == (void *)-1)	2105	if (addr == (void *)-1)
1688	XSRETURN_NO;	2106	XSRETURN_NO;
1689		2107
1690	sv_force_normal (scalar);	2108	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		2109
1698	if (!(prot & PROT_WRITE))	2110	if (!(prot & PROT_WRITE))
1699	SvREADONLY_on (scalar);	2111	SvREADONLY_on (scalar);
1700		2112
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;	2113	XSRETURN_YES;
1710	}	2114	}
1711		2115
1712	void	2116	void
1713	munmap (SV *scalar)	2117	munmap (SV *scalar)
1714	CODE:	2118	CODE:
1715	sv_unmagic (scalar, MMAP_MAGIC);	2119	sv_clear_foreign (scalar);
		2120
		2121	SV *
		2122	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2123	CODE:
		2124	{
		2125	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2126	void *new;
		2127
		2128	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2129	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2130
		2131	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2132
		2133	RETVAL = &PL_sv_no;
		2134
		2135	if (new != (void *)-1)
		2136	{
		2137	RETVAL = new == (void *)mg->mg_ptr
		2138	? newSVpvn ("0 but true", 10)
		2139	: &PL_sv_yes;
		2140
		2141	mg->mg_ptr = (char *)new;
		2142	mg->mg_obj = (SV *)new_length;
		2143
		2144	SvPVX (scalar) = mg->mg_ptr;
		2145	SvCUR_set (scalar, new_length);
		2146	}
		2147	}
		2148	OUTPUT:
		2149	RETVAL
1716		2150
1717	int	2151	int
1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2152	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1719	ALIAS:	2153	ALIAS:
1720	mprotect = 1	2154	mprotect = 1
1721	CODE:	2155	CODE:
1722	{	2156	{
1723	STRLEN svlen;	2157	STRLEN svlen;
1724	void *addr = SvPVbyte (scalar, svlen);	2158	void *addr = SvPVbyte (scalar, svlen);
1725	size_t len = SvUV (length);	2159	STRLEN len = SvUV (length);
1726		2160
1727	if (offset < 0)	2161	if (offset < 0)
1728	offset += svlen;	2162	offset += svlen;
1729		2163
1730	if (offset < 0 || offset > svlen)	2164	if (offset < 0 || offset > svlen)
…		…
1744	}	2178	}
1745	OUTPUT:	2179	OUTPUT:
1746	RETVAL	2180	RETVAL
1747		2181
1748	int	2182	int
1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2183	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1750	CODE:	2184	CODE:
1751	{	2185	{
1752	STRLEN svlen;	2186	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2187	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2188	size_t len = SvUV (length);
1755		2189
1756	if (offset < 0)	2190	if (offset < 0)
1757	offset += svlen;	2191	offset += svlen;
1758		2192
…		…
1765	addr = (void *)(((intptr_t)addr) + offset);	2199	addr = (void *)(((intptr_t)addr) + offset);
1766	eio_page_align (&addr, &len);	2200	eio_page_align (&addr, &len);
1767	#if _POSIX_MEMLOCK_RANGE	2201	#if _POSIX_MEMLOCK_RANGE
1768	RETVAL = munlock (addr, len);	2202	RETVAL = munlock (addr, len);
1769	#else	2203	#else
1770	RETVAL = ((errno = ENOSYS), -1);	2204	RETVAL = EIO_ENOSYS ();
1771	#endif	2205	#endif
1772	}	2206	}
1773	OUTPUT:	2207	OUTPUT:
1774	RETVAL	2208	RETVAL
1775		2209
…		…
1777	munlockall ()	2211	munlockall ()
1778	CODE:	2212	CODE:
1779	#if _POSIX_MEMLOCK	2213	#if _POSIX_MEMLOCK
1780	munlockall ();	2214	munlockall ();
1781	#else	2215	#else
1782	RETVAL = -1;	2216	RETVAL = EIO_ENOSYS ();
1783	errno = ENOSYS;
1784	#endif	2217	#endif
1785	OUTPUT:	2218	OUTPUT:
1786	RETVAL	2219	RETVAL
		2220
		2221	int
		2222	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2223	CODE:
		2224	{
		2225	#if HAVE_LINUX_SPLICE
		2226	loff_t off_in_, off_out_;
		2227	RETVAL = splice (
		2228	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2229	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2230	length, flags
		2231	);
		2232	#else
		2233	RETVAL = EIO_ENOSYS ();
		2234	#endif
		2235	}
		2236	OUTPUT:
		2237	RETVAL
		2238
		2239	int
		2240	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2241	CODE:
		2242	#if HAVE_LINUX_SPLICE
		2243	RETVAL = tee (rfh, wfh, length, flags);
		2244	#else
		2245	RETVAL = EIO_ENOSYS ();
		2246	#endif
		2247	OUTPUT:
		2248	RETVAL
		2249
		2250	int
		2251	pipesize (aio_rfd rfh, int new_size = -1)
		2252	PROTOTYPE: $;$
		2253	CODE:
		2254	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2255	if (new_size >= 0)
		2256	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2257	else
		2258	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2259	#else
		2260	errno = ENOSYS;
		2261	RETVAL = -1;
		2262	#endif
		2263	OUTPUT:
		2264	RETVAL
		2265
		2266	void
		2267	pipe2 (int flags = 0)
		2268	PROTOTYPE: ;$
		2269	PPCODE:
		2270	{
		2271	int fd[2];
		2272	int res;
		2273
		2274	if (flags)
		2275	#if HAVE_PIPE2
		2276	res = pipe2 (fd, flags);
		2277	#else
		2278	res = (errno = ENOSYS, -1);
		2279	#endif
		2280	else
		2281	res = pipe (fd);
		2282
		2283	if (!res)
		2284	{
		2285	EXTEND (SP, 2);
		2286	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2287	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2288	}
		2289	}
		2290
		2291	void
		2292	eventfd (unsigned int initval = 0, int flags = 0)
		2293	PPCODE:
		2294	{
		2295	int fd;
		2296	#if HAVE_EVENTFD
		2297	fd = eventfd (initval, flags);
		2298	#else
		2299	fd = (errno = ENOSYS, -1);
		2300	#endif
		2301
		2302	XPUSHs (newmortalFH (fd, O_RDWR));
		2303	}
		2304
		2305	void
		2306	timerfd_create (int clockid, int flags = 0)
		2307	PPCODE:
		2308	{
		2309	int fd;
		2310	#if HAVE_TIMERFD
		2311	fd = timerfd_create (clockid, flags);
		2312	#else
		2313	fd = (errno = ENOSYS, -1);
		2314	#endif
		2315
		2316	XPUSHs (newmortalFH (fd, O_RDWR));
		2317	}
		2318
		2319	void
		2320	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2321	PPCODE:
		2322	{
		2323	int fd = s_fileno_croak (fh, 0);
		2324	#if HAVE_TIMERFD
		2325	int res;
		2326	struct itimerspec its, ots;
		2327
		2328	ts_set (&its.it_interval, interval);
		2329	ts_set (&its.it_value , value);
		2330	res = timerfd_settime (fd, flags, &its, &ots);
		2331
		2332	if (!res)
		2333	{
		2334	EXTEND (SP, 2);
		2335	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2336	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2337	}
		2338	#else
		2339	errno = ENOSYS;
		2340	#endif
		2341	}
		2342
		2343	void
		2344	timerfd_gettime (SV *fh)
		2345	PPCODE:
		2346	{
		2347	int fd = s_fileno_croak (fh, 0);
		2348	#if HAVE_TIMERFD
		2349	int res;
		2350	struct itimerspec ots;
		2351	res = timerfd_gettime (fd, &ots);
		2352
		2353	if (!res)
		2354	{
		2355	EXTEND (SP, 2);
		2356	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2357	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2358	}
		2359	#else
		2360	errno = ENOSYS;
		2361	#endif
		2362	}
		2363
		2364	UV
		2365	get_fdlimit ()
		2366	CODE:
		2367	#if HAVE_RLIMITS
		2368	struct rlimit rl;
		2369	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2370	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2371	#endif
		2372	XSRETURN_UNDEF;
		2373	OUTPUT:
		2374	RETVAL
		2375
		2376	void
		2377	min_fdlimit (UV limit = 0x7fffffffU)
		2378	CODE:
		2379	{
		2380	#if HAVE_RLIMITS
		2381	struct rlimit rl;
		2382	rlim_t orig_rlim_max;
		2383	UV bit;
		2384
		2385	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2386	goto fail;
		2387
		2388	if (rl.rlim_cur == RLIM_INFINITY)
		2389	XSRETURN_YES;
		2390
		2391	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2392
		2393	if (rl.rlim_cur < limit)
		2394	{
		2395	rl.rlim_cur = limit;
		2396
		2397	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2398	rl.rlim_max = rl.rlim_cur;
		2399	}
		2400
		2401	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2402	XSRETURN_YES;
		2403
		2404	if (errno == EPERM)
		2405	{
		2406	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2407	/* our limit overflows a system-wide limit */
		2408	/* try an adaptive algorithm, but do not lower the hardlimit */
		2409	rl.rlim_max = 0;
		2410	for (bit = 0x40000000U; bit; bit >>= 1)
		2411	{
		2412	rl.rlim_max |= bit;
		2413	rl.rlim_cur = rl.rlim_max;
		2414
		2415	/* nevr decrease the hard limit */
		2416	if (rl.rlim_max < orig_rlim_max)
		2417	break;
		2418
		2419	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2420	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2421	}
		2422
		2423	/* now, raise the soft limit to the max permitted */
		2424	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2425	{
		2426	rl.rlim_cur = rl.rlim_max;
		2427	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2428	errno = EPERM;
		2429	}
		2430	}
		2431	#endif
		2432	fail:
		2433	XSRETURN_UNDEF;
		2434	}
1787		2435
1788	void _on_next_submit (SV *cb)	2436	void _on_next_submit (SV *cb)
1789	CODE:	2437	CODE:
1790	SvREFCNT_dec (on_next_submit);	2438	SvREFCNT_dec (on_next_submit);
1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2439	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1826	cancel (aio_req_ornot req)	2474	cancel (aio_req_ornot req)
1827	CODE:	2475	CODE:
1828	eio_cancel (req);	2476	eio_cancel (req);
1829		2477
1830	void	2478	void
1831	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2479	cb (aio_req_ornot req, SV *callback = NO_INIT)
1832	PPCODE:	2480	PPCODE:
1833	{	2481	{
1834	if (GIMME_V != G_VOID)	2482	if (GIMME_V != G_VOID)
1835	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2483	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1836		2484
1837	if (items > 1)	2485	if (items > 1)
1838	{	2486	{
1839	SV *cb_cv =get_cb (callback);	2487	SV *cb_cv = get_cb (callback);
1840		2488
1841	SvREFCNT_dec (req->callback);	2489	SvREFCNT_dec (req->callback);
1842	req->callback = SvREFCNT_inc (cb_cv);	2490	req->callback = SvREFCNT_inc (cb_cv);
1843	}	2491	}
1844	}	2492	}
…		…
1901	limit (aio_req grp, int limit)	2549	limit (aio_req grp, int limit)
1902	CODE:	2550	CODE:
1903	eio_grp_limit (grp, limit);	2551	eio_grp_limit (grp, limit);
1904		2552
1905	void	2553	void
1906	feed (aio_req grp, SV *callback=&PL_sv_undef)	2554	feed (aio_req grp, SV *callback = &PL_sv_undef)
1907	CODE:	2555	CODE:
1908	{	2556	{
1909	SvREFCNT_dec (grp->sv2);	2557	SvREFCNT_dec (grp->sv2);
1910	grp->sv2 = newSVsv (callback);	2558	grp->sv2 = newSVsv (callback);
1911	grp->feed = aio_grp_feed;	2559	grp->feed = aio_grp_feed;

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