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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 1.270 by root, Thu Nov 29 21:51:22 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	/* the incompetent fool that created musl keeps __linux__, refuses
21	# include <sys/mman.h>	24	* to implement any linux standard apis, and also has no way to test
22	#endif	25	* for his broken iplementation. don't complain to me if this fails
23		26	* for you.
24	#if __linux__	27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	29	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
27	# include <linux/fiemap.h>	32	# include <linux/fiemap.h>
28	# define HAVE_FIEMAP 1	33	# define HAVE_FIEMAP 1
29	# endif	34	# endif
30	#endif	35	#endif
31		36
…		…
69	#undef fchmod	74	#undef fchmod
70	#undef dup	75	#undef dup
71	#undef dup2	76	#undef dup2
72	#undef abort	77	#undef abort
73	#undef pipe	78	#undef pipe
		79	#undef utime
74		80
75	#define EIO_STRUCT_STAT struct _stati64	81	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STATI64	82	#define EIO_STRUCT_STATI64
77		83
78	#else	84	#else
…		…
97		103
98	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
100		106
101	/*****************************************************************************/	107	/*****************************************************************************/
		108
		109	#include "config.h"
		110
		111	#if HAVE_SYS_MKDEV_H
		112	# include <sys/mkdev.h>
		113	#elif HAVE_SYS_SYSMACROS_H
		114	# include <sys/sysmacros.h>
		115	#endif
		116
		117	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		118	# include <sys/mman.h>
		119	#endif
		120
		121	#if HAVE_ST_XTIMENSEC
		122	# define ATIMENSEC PL_statcache.st_atimensec
		123	# define MTIMENSEC PL_statcache.st_mtimensec
		124	# define CTIMENSEC PL_statcache.st_ctimensec
		125	#elif HAVE_ST_XTIMESPEC
		126	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		127	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		128	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		129	#else
		130	# define ATIMENSEC 0
		131	# define MTIMENSEC 0
		132	# define CTIMENSEC 0
		133	#endif
		134
		135	#if HAVE_ST_BIRTHTIMENSEC
		136	# define BTIMESEC PL_statcache.st_birthtime
		137	# define BTIMENSEC PL_statcache.st_birthtimensec
		138	#elif HAVE_ST_BIRTHTIMESPEC
		139	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		140	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		141	#else
		142	# define BTIMESEC 0
		143	# define BTIMENSEC 0
		144	#endif
		145
		146	#if HAVE_ST_GEN
		147	# define ST_GEN PL_statcache.st_gen
		148	#else
		149	# define ST_GEN 0
		150	#endif
		151
		152	#include "schmorp.h"
		153
		154	#if HAVE_EVENTFD
		155	# include <sys/eventfd.h>
		156	#endif
		157
		158	#if HAVE_TIMERFD
		159	# include <sys/timerfd.h>
		160	#endif
		161
		162	#if HAVE_RLIMITS
		163	#include <sys/time.h>
		164	#include <sys/resource.h>
		165	#endif
102		166
103	typedef SV SV8; /* byte-sv, used for argument-checking */	167	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	168	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	169	typedef int aio_wfd; /* write file descriptor */
106		170
…		…
113	STRLEN stroffset; \	177	STRLEN stroffset; \
114	SV *self;	178	SV *self;
115		179
116	#define EIO_NO_WRAPPERS 1	180	#define EIO_NO_WRAPPERS 1
117		181
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	182	#include "libeio/eio.h"
120		183
121	static int req_invoke (eio_req *req);	184	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	185	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	186	static void req_destroy (eio_req *grp);
…		…
139	# else	202	# else
140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	203	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141	# endif	204	# endif
142	#endif	205	#endif
143		206
144	/* defines all sorts of constants to 0 unless they are already defined */
145	#include "def0.h"
146
147	#ifndef makedev	207	#ifndef makedev
148	# define makedev(maj,min) (((maj) << 8) | (min))	208	# define makedev(maj,min) (((maj) << 8) | (min))
149	#endif	209	#endif
150	#ifndef major	210	#ifndef major
151	# define major(dev) ((dev) >> 8)	211	# define major(dev) ((dev) >> 8)
152	#endif	212	#endif
153	#ifndef minor	213	#ifndef minor
154	# define minor(dev) ((dev) & 0xff)	214	# define minor(dev) ((dev) & 0xff)
155	#endif	215	#endif
156		216
		217	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		218	#ifdef __sun
157	#ifndef PAGESIZE	219	# undef PAGESIZE
		220	#endif
		221
		222	#if PAGESIZE <= 0
158	# define PAGESIZE sysconf (_SC_PAGESIZE)	223	# define PAGESIZE sysconf (_SC_PAGESIZE)
159	#endif	224	#endif
		225
		226	/*****************************************************************************/
		227
		228	#if !_POSIX_MAPPED_FILES
		229	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		230	# define munmap(addr,length) EIO_ENOSYS ()
		231	#endif
		232
		233	#if !_POSIX_MEMORY_PROTECTION
		234	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		235	#endif
		236
		237	#if !MREMAP_MAYMOVE
		238	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		239	#endif
		240
		241	#define FOREIGN_MAGIC PERL_MAGIC_ext
		242
		243	static int ecb_cold
		244	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		245	{
		246	int old_errno = errno;
		247	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		248	errno = old_errno;
		249
		250	mg->mg_obj = 0; /* just in case */
		251
		252	SvREADONLY_off (sv);
		253
		254	if (SvPVX (sv) != mg->mg_ptr)
		255	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		256
		257	SvCUR_set (sv, 0);
		258	SvPVX (sv) = 0;
		259	SvOK_off (sv);
		260
		261	return 0;
		262	}
		263
		264	static MGVTBL mmap_vtbl = {
		265	0, 0, 0, 0, mmap_free
		266	};
		267
		268	static int ecb_cold
		269	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		270	{
		271	free (mg->mg_ptr);
		272	mg->mg_obj = 0; /* just in case */
		273
		274	SvREADONLY_off (sv);
		275
		276	if (SvPVX (sv) != mg->mg_ptr)
		277	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		278
		279	SvCUR_set (sv, 0);
		280	SvPVX (sv) = 0;
		281	SvOK_off (sv);
		282
		283	return 0;
		284	}
		285
		286	static MGVTBL sysfree_vtbl = {
		287	0, 0, 0, 0, sysfree_free
		288	};
		289
		290	/*****************************************************************************/
		291
		292	/* helper: set scalar to foreign ptr with custom free */
		293	static void
		294	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		295	{
		296	sv_force_normal (sv);
		297
		298	/* we store the length in mg_obj, as namlen is I32 :/ */
		299	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		300	->mg_obj = (SV *)length;
		301
		302	SvUPGRADE (sv, SVt_PV); /* nop... */
		303
		304	if (SvLEN (sv))
		305	Safefree (SvPVX (sv));
		306
		307	SvPVX (sv) = (char *)addr;
		308	SvCUR_set (sv, length);
		309	SvLEN_set (sv, 0);
		310	SvPOK_only (sv);
		311	}
		312
		313	static void
		314	sv_clear_foreign (SV *sv)
		315	{
		316	/* todo: iterate over magic and only free ours, but of course */
		317	/* the perl5porters will call that (correct) behaviour buggy */
		318	sv_unmagic (sv, FOREIGN_MAGIC);
		319	}
		320
		321	/*****************************************************************************/
		322
		323	/* defines all sorts of constants to 0 unless they are already defined */
		324	/* also provides const_iv_ and const_niv_ macros for them */
		325	#include "def0.h"
160		326
161	/*****************************************************************************/	327	/*****************************************************************************/
162		328
163	static void	329	static void
164	fiemap (eio_req *req)	330	fiemap (eio_req *req)
165	{	331	{
166	req->result = -1;	332	req->result = -1;
167		333
168	#if HAVE_FIEMAP	334	#if HAVE_FIEMAP
		335	/* assume some c99 */
		336	struct fiemap *fiemap = 0;
		337	size_t end_offset;
169	int count = req->int3;	338	int count = req->int3;
170		339
171	/* heuristic: first try with 64 extents if we don't know how many, */	340	req->flags |= EIO_FLAG_PTR1_FREE;
172	/* as most files have (hopefully) fewer than this many extents */	341
173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */	342	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		343	/* increase in 3.5kb steps */
174	if (count < 0)	344	if (count < 0)
175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */	345	count = 8;
		346
		347	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		348	errno = ENOMEM;
		349	if (!fiemap)
		350	return;
		351
		352	req->ptr1 = fiemap;
		353
		354	fiemap->fm_start = req->offs;
		355	fiemap->fm_length = req->size;
		356	fiemap->fm_flags = req->int2;
		357	fiemap->fm_extent_count = count;
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		360	return;
		361
		362	if (req->int3 >= 0 /* not autosizing */
		363	|| !fiemap->fm_mapped_extents /* no more extents */
		364	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		365	goto done;
		366
		367	/* else we have to loop -
		368	* it would be tempting (actually I tried that first) to just query the
		369	* number of extents needed, but linux often feels like not returning all
		370	* extents, without telling us it left any out. this complicates
		371	* this quite a bit.
		372	*/
		373
		374	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
176		375
177	for (;;)	376	for (;;)
178	{	377	{
		378	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		379	char scratch[3072];
		380	struct fiemap *incmap = (struct fiemap *)scratch;
		381
		382	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		383	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		384	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		385	incmap->fm_flags = fiemap->fm_flags;
		386	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		387
		388	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		389	return;
		390
		391	if (!incmap->fm_mapped_extents)
		392	goto done;
		393
		394	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	395	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
180	errno = ENOMEM;	396	errno = ENOMEM;
181	if (!fiemap)	397	if (!fiemap)
182	return;	398	return;
183		399
184	req->ptr1 = fiemap;	400	req->ptr1 = fiemap;
185	req->flags |= EIO_FLAG_PTR1_FREE;
186		401
187	fiemap->fm_start = req->offs;	402	for (count = 0; count < incmap->fm_mapped_extents; ++count)
188	fiemap->fm_length = req->size;	403	{
189	fiemap->fm_flags = req->int2;	404	struct fiemap_extent *e = incmap->fm_extents + count;
190	fiemap->fm_extent_count = count;
191		405
192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	406	if (e->fe_logical + e->fe_length >= end_offset)
193	return;	407	goto done;
194		408
195	if (req->int3 >= 0)	409	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
196	break; /* when not autosizing we are done */
197		410
198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	411	if (e->fe_flags & FIEMAP_EXTENT_LAST)
199	break; /* autosizing successful, we are done */	412	goto done;
200		413
201	fiemap->fm_flags = req->int2;	414	}
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	}	415	}
211		416
		417	done:
212	req->result = 0;	418	req->result = 0;
213		419
214	#else	420	#else
215	errno = ENOSYS;	421	errno = ENOSYS;
216	#endif	422	#endif
217	}	423	}
218		424
219	/*****************************************************************************/	425	/*****************************************************************************/
		426
		427	static int close_fd; /* dummy fd to close fds via dup2 */
220		428
221	enum {	429	enum {
222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	430	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
223	};	431	};
224		432
…		…
263	}	471	}
264		472
265	static SV *	473	static SV *
266	newSVaio_wd (aio_wd wd)	474	newSVaio_wd (aio_wd wd)
267	{	475	{
268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	476	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
269	}	477	}
270		478
271	static aio_req	479	static aio_req
272	SvAIO_REQ (SV *sv)	480	SvAIO_REQ (SV *sv)
273	{	481	{
…		…
292	|| SvTYPE (SvRV (sv)) != SVt_PVMG	500	|| SvTYPE (SvRV (sv)) != SVt_PVMG
293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	501	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	502	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
295		503
296	return (aio_wd)(long)SvIVX (SvRV (sv));	504	return (aio_wd)(long)SvIVX (SvRV (sv));
		505	}
		506
		507	static SV *
		508	newmortalFH (int fd, int flags)
		509	{
		510	if (fd < 0)
		511	return &PL_sv_undef;
		512
		513	GV *gv = (GV *)sv_newmortal ();
		514	char sym[64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		518	gv_init (gv, aio_stash, sym, symlen, 0);
		519
		520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	fd
		526	);
		527
		528	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		529	? (SV *)gv : &PL_sv_undef;
297	}	530	}
298		531
299	static void	532	static void
300	aio_grp_feed (aio_req grp)	533	aio_grp_feed (aio_req grp)
301	{	534	{
…		…
429	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	662	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
430	}	663	}
431	break;	664	break;
432		665
433	case EIO_OPEN:	666	case EIO_OPEN:
434	{	667	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;	668	break;
463		669
464	case EIO_STATVFS:	670	case EIO_STATVFS:
465	case EIO_FSTATVFS:	671	case EIO_FSTATVFS:
466	{	672	{
…		…
469	#ifndef _WIN32	675	#ifndef _WIN32
470	if (req->result >= 0)	676	if (req->result >= 0)
471	{	677	{
472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	678	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
473	HV *hv = newHV ();	679	HV *hv = newHV ();
		680	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		681	* chooses to make it a struct.
		682	*/
		683	unsigned long fsid = 0;
		684	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
474		685
475	rv = sv_2mortal (newRV_noinc ((SV *)hv));	686	rv = sv_2mortal (newRV_noinc ((SV *)hv));
476		687
477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	688	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);	689	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);	691	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);	692	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);	693	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);	694	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);	695	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);	696	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	697	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);	698	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
488	}	699	}
489	#endif	700	#endif
490		701
…		…
541	SvSETMAGIC (req->sv2);	752	SvSETMAGIC (req->sv2);
542	PUSHs (sv_result);	753	PUSHs (sv_result);
543	}	754	}
544	break;	755	break;
545		756
		757	case EIO_SLURP:
		758	{
		759	if (req->result >= 0)
		760	{
		761	/* if length was originally not known, we steal the malloc'ed memory */
		762	if (req->flags & EIO_FLAG_PTR2_FREE)
		763	{
		764	req->flags &= ~EIO_FLAG_PTR2_FREE;
		765	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		766	}
		767	else
		768	{
		769	SvCUR_set (req->sv2, req->result);
		770	*SvEND (req->sv2) = 0;
		771	SvPOK_only (req->sv2);
		772	}
		773
		774	SvSETMAGIC (req->sv2);
		775	}
		776
		777	PUSHs (sv_result);
		778	}
		779	break;
		780
546	case EIO_CUSTOM:	781	case EIO_CUSTOM:
547	if (req->feed == fiemap)	782	if (req->feed == fiemap)
548	{	783	{
549	#if HAVE_FIEMAP	784	#if HAVE_FIEMAP
550	if (!req->result)	785	if (!req->result)
…		…
655	{	890	{
656	while (eio_nreqs ())	891	while (eio_nreqs ())
657	{	892	{
658	int size;	893	int size;
659		894
660	X_LOCK (reslock);	895	X_LOCK (EIO_POOL->reslock);
661	size = res_queue.size;	896	size = EIO_POOL->res_queue.size;
662	X_UNLOCK (reslock);	897	X_UNLOCK (EIO_POOL->reslock);
663		898
664	if (size)	899	if (size)
665	return;	900	return;
666		901
667	etp_maybe_start_thread ();	902	etp_maybe_start_thread (EIO_POOL);
668		903
669	s_epipe_wait (&respipe);	904	s_epipe_wait (&respipe);
670	}	905	}
671	}	906	}
672		907
…		…
693	create_respipe ();	928	create_respipe ();
694		929
695	if (eio_init (want_poll, done_poll) < 0)	930	if (eio_init (want_poll, done_poll) < 0)
696	croak ("IO::AIO: unable to initialise eio library");	931	croak ("IO::AIO: unable to initialise eio library");
697	}	932	}
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		933
742	/*****************************************************************************/	934	/*****************************************************************************/
743		935
744	static SV *	936	static SV *
745	get_cb (SV *cb_sv)	937	get_cb (SV *cb_sv)
…		…
841	req_set_path1 (req, fh_or_path);	1033	req_set_path1 (req, fh_or_path);
842	break;	1034	break;
843	}	1035	}
844	}	1036	}
845		1037
		1038	/*****************************************************************************/
		1039
		1040	static void
		1041	ts_set (struct timespec *ts, NV value)
		1042	{
		1043	ts->tv_sec = value;
		1044	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1045	}
		1046
		1047	static NV
		1048	ts_get (const struct timespec *ts)
		1049	{
		1050	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1051	}
		1052
		1053	/*****************************************************************************/
		1054
846	XS(boot_IO__AIO) ecb_cold;	1055	XS(boot_IO__AIO) ecb_cold;
847		1056
848	MODULE = IO::AIO PACKAGE = IO::AIO	1057	MODULE = IO::AIO PACKAGE = IO::AIO
849		1058
850	PROTOTYPES: ENABLE	1059	PROTOTYPES: ENABLE
…		…
857	} *civ, const_iv[] = {	1066	} *civ, const_iv[] = {
858	# define const_niv(name, value) { # name, (IV) value },	1067	# define const_niv(name, value) { # name, (IV) value },
859	# define const_iv(name) { # name, (IV) name },	1068	# define const_iv(name) { # name, (IV) name },
860	# define const_eio(name) { # name, (IV) EIO_ ## name },	1069	# define const_eio(name) { # name, (IV) EIO_ ## name },
861		1070
862	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1071	/* you have to re-run ./gendef0 after adding/removing any constants here */
863		1072	/* the first block can be undef if missing */
864	const_iv (ENOSYS)	1073	const_iv (ENOSYS)
865	const_iv (EXDEV)	1074	const_iv (EXDEV)
866	const_iv (EBADR)	1075	const_iv (EBADR)
		1076
		1077	/* for lseek */
		1078	const_iv (SEEK_DATA)
		1079	const_iv (SEEK_HOLE)
		1080
		1081	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1082	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1083	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1084	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1085	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1086	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1087
		1088	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1089	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1090	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1091	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1092	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1093
		1094	/* the second block will be 0 when missing */
		1095	const_iv (O_ACCMODE)
867		1096
868	const_iv (O_RDONLY)	1097	const_iv (O_RDONLY)
869	const_iv (O_WRONLY)	1098	const_iv (O_WRONLY)
870	const_iv (O_RDWR)	1099	const_iv (O_RDWR)
871	const_iv (O_CREAT)	1100	const_iv (O_CREAT)
…		…
885	const_iv (O_SEARCH)	1114	const_iv (O_SEARCH)
886	const_iv (O_DIRECTORY)	1115	const_iv (O_DIRECTORY)
887	const_iv (O_DSYNC)	1116	const_iv (O_DSYNC)
888	const_iv (O_RSYNC)	1117	const_iv (O_RSYNC)
889	const_iv (O_SYNC)	1118	const_iv (O_SYNC)
		1119	const_iv (O_PATH)
		1120	const_iv (O_TMPFILE)
890	const_iv (O_TTY_INIT)	1121	const_iv (O_TTY_INIT)
891		1122
892	const_iv (S_IFIFO)	1123	const_iv (S_IFIFO)
893	const_iv (S_IFCHR)	1124	const_iv (S_IFCHR)
894	const_iv (S_IFBLK)	1125	const_iv (S_IFBLK)
…		…
896	const_iv (S_IFREG)	1127	const_iv (S_IFREG)
897	const_iv (S_IFDIR)	1128	const_iv (S_IFDIR)
898	const_iv (S_IFWHT)	1129	const_iv (S_IFWHT)
899	const_iv (S_IFSOCK)	1130	const_iv (S_IFSOCK)
900	const_iv (S_IFMT)	1131	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		1132
915	const_iv (ST_RDONLY)	1133	const_iv (ST_RDONLY)
916	const_iv (ST_NOSUID)	1134	const_iv (ST_NOSUID)
917	const_iv (ST_NODEV)	1135	const_iv (ST_NODEV)
918	const_iv (ST_NOEXEC)	1136	const_iv (ST_NOEXEC)
…		…
928	const_iv (PROT_NONE)	1146	const_iv (PROT_NONE)
929	const_iv (PROT_EXEC)	1147	const_iv (PROT_EXEC)
930	const_iv (PROT_READ)	1148	const_iv (PROT_READ)
931	const_iv (PROT_WRITE)	1149	const_iv (PROT_WRITE)
932		1150
933	/*const_iv (MAP_FIXED)*/
934	const_iv (MAP_PRIVATE)	1151	const_iv (MAP_PRIVATE)
935	const_iv (MAP_SHARED)	1152	const_iv (MAP_SHARED)
		1153	const_iv (MAP_FIXED)
936	const_iv (MAP_ANONYMOUS)	1154	const_iv (MAP_ANONYMOUS)
937		1155
938	/* linuxish */	1156	/* linuxish */
939	const_iv (MAP_HUGETLB)
940	const_iv (MAP_LOCKED)	1157	const_iv (MAP_LOCKED)
941	const_iv (MAP_NORESERVE)	1158	const_iv (MAP_NORESERVE)
942	const_iv (MAP_POPULATE)	1159	const_iv (MAP_POPULATE)
943	const_iv (MAP_NONBLOCK)	1160	const_iv (MAP_NONBLOCK)
		1161	const_iv (MAP_GROWSDOWN)
		1162	const_iv (MAP_32BIT)
		1163	const_iv (MAP_HUGETLB)
		1164	const_iv (MAP_STACK)
		1165
		1166	const_iv (MREMAP_MAYMOVE)
		1167	const_iv (MREMAP_FIXED)
		1168
		1169	const_iv (F_DUPFD_CLOEXEC)
		1170
		1171	const_iv (MSG_CMSG_CLOEXEC)
		1172	const_iv (SOCK_CLOEXEC)
		1173
		1174	const_iv (F_OFD_GETLK)
		1175	const_iv (F_OFD_SETLK)
		1176	const_iv (F_OFD_GETLKW)
		1177
		1178	const_iv (FIFREEZE)
		1179	const_iv (FITHAW)
		1180	const_iv (FITRIM)
		1181	const_iv (FICLONE)
		1182	const_iv (FICLONERANGE)
		1183	const_iv (FIDEDUPERANGE)
		1184
		1185	const_iv (FS_IOC_GETFLAGS)
		1186	const_iv (FS_IOC_SETFLAGS)
		1187	const_iv (FS_IOC_GETVERSION)
		1188	const_iv (FS_IOC_SETVERSION)
		1189	const_iv (FS_IOC_FIEMAP)
		1190	const_iv (FS_IOC_FSGETXATTR)
		1191	const_iv (FS_IOC_FSSETXATTR)
		1192	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1193	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1195
		1196	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1197
		1198	const_iv (FS_SECRM_FL)
		1199	const_iv (FS_UNRM_FL)
		1200	const_iv (FS_COMPR_FL)
		1201	const_iv (FS_SYNC_FL)
		1202	const_iv (FS_IMMUTABLE_FL)
		1203	const_iv (FS_APPEND_FL)
		1204	const_iv (FS_NODUMP_FL)
		1205	const_iv (FS_NOATIME_FL)
		1206	const_iv (FS_DIRTY_FL)
		1207	const_iv (FS_COMPRBLK_FL)
		1208	const_iv (FS_NOCOMP_FL)
		1209	const_iv (FS_ENCRYPT_FL)
		1210	const_iv (FS_BTREE_FL)
		1211	const_iv (FS_INDEX_FL)
		1212	const_iv (FS_JOURNAL_DATA_FL)
		1213	const_iv (FS_NOTAIL_FL)
		1214	const_iv (FS_DIRSYNC_FL)
		1215	const_iv (FS_TOPDIR_FL)
		1216	const_iv (FS_FL_USER_MODIFIABLE)
		1217
		1218	const_iv (FS_XFLAG_REALTIME)
		1219	const_iv (FS_XFLAG_PREALLOC)
		1220	const_iv (FS_XFLAG_IMMUTABLE)
		1221	const_iv (FS_XFLAG_APPEND)
		1222	const_iv (FS_XFLAG_SYNC)
		1223	const_iv (FS_XFLAG_NOATIME)
		1224	const_iv (FS_XFLAG_NODUMP)
		1225	const_iv (FS_XFLAG_RTINHERIT)
		1226	const_iv (FS_XFLAG_PROJINHERIT)
		1227	const_iv (FS_XFLAG_NOSYMLINKS)
		1228	const_iv (FS_XFLAG_EXTSIZE)
		1229	const_iv (FS_XFLAG_EXTSZINHERIT)
		1230	const_iv (FS_XFLAG_NODEFRAG)
		1231	const_iv (FS_XFLAG_FILESTREAM)
		1232	const_iv (FS_XFLAG_DAX)
		1233	const_iv (FS_XFLAG_HASATTR)
944		1234
945	const_iv (FIEMAP_FLAG_SYNC)	1235	const_iv (FIEMAP_FLAG_SYNC)
946	const_iv (FIEMAP_FLAG_XATTR)	1236	const_iv (FIEMAP_FLAG_XATTR)
947	const_iv (FIEMAP_FLAGS_COMPAT)	1237	const_iv (FIEMAP_FLAGS_COMPAT)
948	const_iv (FIEMAP_EXTENT_LAST)	1238	const_iv (FIEMAP_EXTENT_LAST)
…		…
955	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1245	const_iv (FIEMAP_EXTENT_DATA_TAIL)
956	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1246	const_iv (FIEMAP_EXTENT_UNWRITTEN)
957	const_iv (FIEMAP_EXTENT_MERGED)	1247	const_iv (FIEMAP_EXTENT_MERGED)
958	const_iv (FIEMAP_EXTENT_SHARED)	1248	const_iv (FIEMAP_EXTENT_SHARED)
959		1249
		1250	const_iv (SPLICE_F_MOVE)
		1251	const_iv (SPLICE_F_NONBLOCK)
		1252	const_iv (SPLICE_F_MORE)
		1253	const_iv (SPLICE_F_GIFT)
		1254
		1255	const_iv (EFD_CLOEXEC)
		1256	const_iv (EFD_NONBLOCK)
		1257	const_iv (EFD_SEMAPHORE)
		1258
		1259	const_iv (CLOCK_REALTIME)
		1260	const_iv (CLOCK_MONOTONIC)
		1261	const_iv (CLOCK_BOOTTIME)
		1262	const_iv (CLOCK_REALTIME_ALARM)
		1263	const_iv (CLOCK_BOOTTIME_ALARM)
		1264
		1265	const_iv (TFD_NONBLOCK)
		1266	const_iv (TFD_CLOEXEC)
		1267
		1268	const_iv (TFD_TIMER_ABSTIME)
		1269	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1270
		1271	/* these are libeio constants, and are independent of gendef0 */
960	const_eio (SEEK_SET)	1272	const_eio (SEEK_SET)
961	const_eio (SEEK_CUR)	1273	const_eio (SEEK_CUR)
962	const_eio (SEEK_END)	1274	const_eio (SEEK_END)
963		1275
964	const_eio (MCL_FUTURE)	1276	const_eio (MCL_FUTURE)
965	const_eio (MCL_CURRENT)	1277	const_eio (MCL_CURRENT)
		1278	const_eio (MCL_ONFAULT)
966		1279
967	const_eio (MS_ASYNC)	1280	const_eio (MS_ASYNC)
968	const_eio (MS_INVALIDATE)	1281	const_eio (MS_INVALIDATE)
969	const_eio (MS_SYNC)	1282	const_eio (MS_SYNC)
970		1283
…		…
973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1286	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
974	const_eio (SYNC_FILE_RANGE_WRITE)	1287	const_eio (SYNC_FILE_RANGE_WRITE)
975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1288	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
976		1289
977	const_eio (FALLOC_FL_KEEP_SIZE)	1290	const_eio (FALLOC_FL_KEEP_SIZE)
		1291	const_eio (FALLOC_FL_PUNCH_HOLE)
		1292	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1293	const_eio (FALLOC_FL_ZERO_RANGE)
		1294	const_eio (FALLOC_FL_INSERT_RANGE)
		1295	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1296
		1297	const_eio (RENAME_NOREPLACE)
		1298	const_eio (RENAME_EXCHANGE)
		1299	const_eio (RENAME_WHITEOUT)
978		1300
979	const_eio (READDIR_DENTS)	1301	const_eio (READDIR_DENTS)
980	const_eio (READDIR_DIRS_FIRST)	1302	const_eio (READDIR_DIRS_FIRST)
981	const_eio (READDIR_STAT_ORDER)	1303	const_eio (READDIR_STAT_ORDER)
982	const_eio (READDIR_FOUND_UNKNOWN)	1304	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1000	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1322	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1001	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1323	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1002		1324
1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1325	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1004		1326
		1327	/* allocate dummy pipe fd for aio_close */
		1328	{
		1329	int pipefd [2];
		1330
		1331	if (
		1332	#ifdef _WIN32
		1333	_pipe (pipefd, 1, _O_BINARY) < 0
		1334	#else
		1335	pipe (pipefd) < 0
		1336	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1337	#endif
		1338	|| close (pipefd [1]) < 0
		1339	)
		1340	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1341
		1342	close_fd = pipefd [0];
		1343	}
		1344
1005	reinit ();	1345	reinit ();
1006	}	1346	}
1007		1347
1008	void	1348	void
1009	reinit ()	1349	reinit ()
…		…
1050	PROTOTYPE: $	1390	PROTOTYPE: $
1051	CODE:	1391	CODE:
1052	max_outstanding = maxreqs;	1392	max_outstanding = maxreqs;
1053		1393
1054	void	1394	void
1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1395	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1056	PPCODE:	1396	PPCODE:
1057	{	1397	{
1058	dREQ;	1398	dREQ;
1059		1399
1060	req->type = EIO_WD_OPEN;	1400	req->type = EIO_WD_OPEN;
…		…
1062		1402
1063	REQ_SEND;	1403	REQ_SEND;
1064	}	1404	}
1065		1405
1066	void	1406	void
1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1407	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1068	PPCODE:	1408	PPCODE:
1069	{	1409	{
1070	dREQ;	1410	dREQ;
1071		1411
1072	req->type = EIO_OPEN;	1412	req->type = EIO_OPEN;
…		…
1076		1416
1077	REQ_SEND;	1417	REQ_SEND;
1078	}	1418	}
1079		1419
1080	void	1420	void
1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1421	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1082	ALIAS:	1422	ALIAS:
1083	aio_fsync = EIO_FSYNC	1423	aio_fsync = EIO_FSYNC
1084	aio_fdatasync = EIO_FDATASYNC	1424	aio_fdatasync = EIO_FDATASYNC
1085	aio_syncfs = EIO_SYNCFS	1425	aio_syncfs = EIO_SYNCFS
1086	PPCODE:	1426	PPCODE:
1087	{	1427	{
1088	int fd = s_fileno_croak (fh, 0);	1428	int fd = s_fileno_croak (fh, 0);
1089	dREQ;	1429	dREQ;
1090		1430
1091	req->type = ix;	1431	req->type = ix;
1092	req->sv1 = newSVsv (fh);	1432	req->sv1 = newSVsv (fh);
1093	req->int1 = fd;	1433	req->int1 = fd;
1094		1434
1095	REQ_SEND;	1435	REQ_SEND;
1096	}	1436	}
1097		1437
1098	void	1438	void
1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1439	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1100	PPCODE:	1440	PPCODE:
1101	{	1441	{
1102	int fd = s_fileno_croak (fh, 0);	1442	int fd = s_fileno_croak (fh, 0);
1103	dREQ;	1443	dREQ;
1104		1444
1105	req->type = EIO_SYNC_FILE_RANGE;	1445	req->type = EIO_SYNC_FILE_RANGE;
1106	req->sv1 = newSVsv (fh);	1446	req->sv1 = newSVsv (fh);
1107	req->int1 = fd;	1447	req->int1 = fd;
…		…
1111		1451
1112	REQ_SEND;	1452	REQ_SEND;
1113	}	1453	}
1114		1454
1115	void	1455	void
1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1456	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1117	PPCODE:	1457	PPCODE:
1118	{	1458	{
1119	int fd = s_fileno_croak (fh, 0);	1459	int fd = s_fileno_croak (fh, 0);
1120	dREQ;	1460	dREQ;
1121		1461
1122	req->type = EIO_FALLOCATE;	1462	req->type = EIO_FALLOCATE;
1123	req->sv1 = newSVsv (fh);	1463	req->sv1 = newSVsv (fh);
1124	req->int1 = fd;	1464	req->int1 = fd;
…		…
1128		1468
1129	REQ_SEND;	1469	REQ_SEND;
1130	}	1470	}
1131		1471
1132	void	1472	void
1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1473	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1134	PPCODE:	1474	PPCODE:
1135	{	1475	{
1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1137	int fd = s_fileno_croak (fh, 0);	1476	int fd = s_fileno_croak (fh, 0);
1138	dREQ;	1477	dREQ;
1139
1140	if (expect_false (close_fd < 0))
1141	{
1142	int pipefd [2];
1143
1144	if (
1145	#ifdef _WIN32
1146	_pipe (pipefd, 1, _O_BINARY) < 0
1147	#else
1148	pipe (pipefd) < 0
1149	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1150	#endif
1151	|| close (pipefd [1]) < 0
1152	)
1153	abort (); /*D*/
1154
1155	close_fd = pipefd [0];
1156	}
1157		1478
1158	req->type = EIO_DUP2;	1479	req->type = EIO_DUP2;
1159	req->int1 = close_fd;	1480	req->int1 = close_fd;
1160	req->sv2 = newSVsv (fh);	1481	req->sv2 = newSVsv (fh);
1161	req->int2 = fd;	1482	req->int2 = fd;
1162		1483
1163	REQ_SEND;	1484	REQ_SEND;
1164	}	1485	}
1165		1486
1166	void	1487	void
1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1488	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1168	PPCODE:	1489	PPCODE:
1169	{	1490	{
1170	int fd = s_fileno_croak (fh, 0);	1491	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1492	dREQ;
1172		1493
…		…
1178		1499
1179	REQ_SEND;	1500	REQ_SEND;
1180	}	1501	}
1181		1502
1182	void	1503	void
1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1504	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1184	ALIAS:	1505	ALIAS:
1185	aio_read = EIO_READ	1506	aio_read = EIO_READ
1186	aio_write = EIO_WRITE	1507	aio_write = EIO_WRITE
1187	PPCODE:	1508	PPCODE:
1188	{	1509	{
…		…
1204	len = svlen - dataoffset;	1525	len = svlen - dataoffset;
1205	}	1526	}
1206	else	1527	else
1207	{	1528	{
1208	/* read: check type and grow scalar as necessary */	1529	/* read: check type and grow scalar as necessary */
1209	SvUPGRADE (data, SVt_PV);	1530	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210	svptr = SvGROW (data, len + dataoffset + 1);	1531	svptr = sv_grow (data, len + dataoffset + 1);
		1532	else if (SvCUR (data) < len + dataoffset)
		1533	croak ("length + dataoffset outside of scalar, and cannot grow");
1211	}	1534	}
1212		1535
1213	{	1536	{
1214	dREQ;	1537	dREQ;
1215		1538
…		…
1231	REQ_SEND;	1554	REQ_SEND;
1232	}	1555	}
1233	}	1556	}
1234		1557
1235	void	1558	void
		1559	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1560	ALIAS:
		1561	aio_ioctl = EIO_IOCTL
		1562	aio_fcntl = EIO_FCNTL
		1563	PPCODE:
		1564	{
		1565	int fd = s_fileno_croak (fh, 0);
		1566	char *svptr;
		1567
		1568	if (SvPOK (arg) || !SvNIOK (arg))
		1569	{
		1570	STRLEN svlen;
		1571	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1572	#ifdef IOCPARM_LEN
		1573	STRLEN need = IOCPARM_LEN (request);
		1574	#else
		1575	STRLEN need = 256;
		1576	#endif
		1577
		1578	if (svlen < need)
		1579	svptr = SvGROW (arg, need);
		1580	}
		1581	else
		1582	svptr = (char *)SvIV (arg);
		1583
		1584	{
		1585	dREQ;
		1586
		1587	req->type = ix;
		1588	req->sv1 = newSVsv (fh);
		1589	req->int1 = fd;
		1590	req->int2 = (long)request;
		1591	req->sv2 = SvREFCNT_inc (arg);
		1592	req->ptr2 = svptr;
		1593
		1594	REQ_SEND;
		1595	}
		1596	}
		1597
		1598	void
1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1599	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1237	ALIAS:	1600	ALIAS:
1238	aio_readlink = EIO_READLINK	1601	aio_readlink = EIO_READLINK
1239	aio_realpath = EIO_REALPATH	1602	aio_realpath = EIO_REALPATH
1240	PPCODE:	1603	PPCODE:
1241	{	1604	{
…		…
1246		1609
1247	REQ_SEND;	1610	REQ_SEND;
1248	}	1611	}
1249		1612
1250	void	1613	void
1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1614	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1252	PPCODE:	1615	PPCODE:
1253	{	1616	{
1254	int ifd = s_fileno_croak (in_fh , 0);	1617	int ifd = s_fileno_croak (in_fh , 0);
1255	int ofd = s_fileno_croak (out_fh, 1);	1618	int ofd = s_fileno_croak (out_fh, 1);
1256	dREQ;	1619	dREQ;
1257		1620
1258	req->type = EIO_SENDFILE;	1621	req->type = EIO_SENDFILE;
1259	req->sv1 = newSVsv (out_fh);	1622	req->sv1 = newSVsv (out_fh);
1260	req->int1 = ofd;	1623	req->int1 = ofd;
…		…
1265		1628
1266	REQ_SEND;	1629	REQ_SEND;
1267	}	1630	}
1268		1631
1269	void	1632	void
1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1633	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1271	PPCODE:	1634	PPCODE:
1272	{	1635	{
1273	int fd = s_fileno_croak (fh, 0);	1636	int fd = s_fileno_croak (fh, 0);
1274	dREQ;	1637	dREQ;
1275		1638
1276	req->type = EIO_READAHEAD;	1639	req->type = EIO_READAHEAD;
1277	req->sv1 = newSVsv (fh);	1640	req->sv1 = newSVsv (fh);
1278	req->int1 = fd;	1641	req->int1 = fd;
…		…
1281		1644
1282	REQ_SEND;	1645	REQ_SEND;
1283	}	1646	}
1284		1647
1285	void	1648	void
1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1649	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1287	ALIAS:	1650	ALIAS:
1288	aio_stat = EIO_STAT	1651	aio_stat = EIO_STAT
1289	aio_lstat = EIO_LSTAT	1652	aio_lstat = EIO_LSTAT
1290	aio_statvfs = EIO_STATVFS	1653	aio_statvfs = EIO_STATVFS
1291	PPCODE:	1654	PPCODE:
…		…
1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1658	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1296		1659
1297	REQ_SEND;	1660	REQ_SEND;
1298	}	1661	}
1299		1662
		1663	void
		1664	st_xtime ()
		1665	ALIAS:
		1666	st_atime = 0x01
		1667	st_mtime = 0x02
		1668	st_ctime = 0x04
		1669	st_btime = 0x08
		1670	st_xtime = 0x0f
		1671	PPCODE:
		1672	EXTEND (SP, 4);
		1673	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1674	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1675	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1676	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1677
		1678	void
		1679	st_xtimensec ()
		1680	ALIAS:
		1681	st_atimensec = 0x01
		1682	st_mtimensec = 0x02
		1683	st_ctimensec = 0x04
		1684	st_btimensec = 0x08
		1685	st_xtimensec = 0x0f
		1686	st_btimesec = 0x10
		1687	st_gen = 0x20
		1688	PPCODE:
		1689	EXTEND (SP, 4);
		1690	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1691	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1692	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1693	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1694	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1695	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1696
1300	UV	1697	UV
1301	major (UV dev)	1698	major (UV dev)
1302	ALIAS:	1699	ALIAS:
1303	minor = 1	1700	minor = 1
1304	CODE:	1701	CODE:
1305	RETVAL = ix ? major (dev) : minor (dev);	1702	RETVAL = ix ? minor (dev) : major (dev);
1306	OUTPUT:	1703	OUTPUT:
1307	RETVAL	1704	RETVAL
1308		1705
1309	UV	1706	UV
1310	makedev (UV maj, UV min)	1707	makedev (UV maj, UV min)
…		…
1312	RETVAL = makedev (maj, min);	1709	RETVAL = makedev (maj, min);
1313	OUTPUT:	1710	OUTPUT:
1314	RETVAL	1711	RETVAL
1315		1712
1316	void	1713	void
1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1714	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1318	PPCODE:	1715	PPCODE:
1319	{	1716	{
1320	dREQ;	1717	dREQ;
1321		1718
1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1719	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1325		1722
1326	REQ_SEND;	1723	REQ_SEND;
1327	}	1724	}
1328		1725
1329	void	1726	void
1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1727	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1331	PPCODE:	1728	PPCODE:
1332	{	1729	{
1333	dREQ;	1730	dREQ;
1334		1731
1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1732	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1337		1734
1338	REQ_SEND;	1735	REQ_SEND;
1339	}	1736	}
1340		1737
1341	void	1738	void
1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1739	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1343	PPCODE:	1740	PPCODE:
1344	{	1741	{
1345	dREQ;	1742	dREQ;
1346		1743
1347	req->int2 = mode;	1744	req->int2 = mode;
…		…
1349		1746
1350	REQ_SEND;	1747	REQ_SEND;
1351	}	1748	}
1352		1749
1353	void	1750	void
1354	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1751	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1355	PPCODE:	1752	PPCODE:
1356	{	1753	{
1357	dREQ;	1754	dREQ;
1358		1755
1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1756	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1362		1759
1363	REQ_SEND;	1760	REQ_SEND;
1364	}	1761	}
1365		1762
1366	void	1763	void
1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1764	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1368	PPCODE:	1765	PPCODE:
1369	{	1766	{
1370	dREQ;	1767	dREQ;
1371		1768
1372	req->type = EIO_READDIR;	1769	req->type = EIO_READDIR;
…		…
1379		1776
1380	REQ_SEND;	1777	REQ_SEND;
1381	}	1778	}
1382		1779
1383	void	1780	void
1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1781	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1385	PPCODE:	1782	PPCODE:
1386	{	1783	{
1387	dREQ;	1784	dREQ;
1388		1785
1389	req->type = EIO_MKDIR;	1786	req->type = EIO_MKDIR;
…		…
1392		1789
1393	REQ_SEND;	1790	REQ_SEND;
1394	}	1791	}
1395		1792
1396	void	1793	void
1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1794	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1398	ALIAS:	1795	ALIAS:
1399	aio_unlink = EIO_UNLINK	1796	aio_unlink = EIO_UNLINK
1400	aio_rmdir = EIO_RMDIR	1797	aio_rmdir = EIO_RMDIR
1401	aio_readdir = EIO_READDIR	1798	aio_readdir = EIO_READDIR
1402	PPCODE:	1799	PPCODE:
…		…
1408		1805
1409	REQ_SEND;	1806	REQ_SEND;
1410	}	1807	}
1411		1808
1412	void	1809	void
1413	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1810	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1414	ALIAS:	1811	ALIAS:
1415	aio_link = EIO_LINK	1812	aio_link = EIO_LINK
1416	aio_symlink = EIO_SYMLINK	1813	aio_symlink = EIO_SYMLINK
1417	aio_rename = EIO_RENAME	1814	aio_rename = EIO_RENAME
1418	PPCODE:	1815	PPCODE:
…		…
1427		1824
1428	REQ_SEND;	1825	REQ_SEND;
1429	}	1826	}
1430		1827
1431	void	1828	void
		1829	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1830	PPCODE:
		1831	{
		1832	eio_wd wd2 = 0;
		1833	dREQ;
		1834
		1835	req->type = EIO_RENAME;
		1836	req_set_path1 (req, oldpath);
		1837	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1838	req->int2 = flags;
		1839	req->int3 = (long)wd2;
		1840
		1841	REQ_SEND;
		1842	}
		1843
		1844	void
1432	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1845	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1433	PPCODE:	1846	PPCODE:
1434	{	1847	{
1435	dREQ;	1848	dREQ;
1436		1849
1437	req->type = EIO_MKNOD;	1850	req->type = EIO_MKNOD;
…		…
1441		1854
1442	REQ_SEND;	1855	REQ_SEND;
1443	}	1856	}
1444		1857
1445	void	1858	void
1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1859	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1447	ALIAS:	1860	ALIAS:
1448	aio_mtouch = EIO_MTOUCH	1861	aio_mtouch = EIO_MTOUCH
1449	aio_msync = EIO_MSYNC	1862	aio_msync = EIO_MSYNC
1450	PPCODE:	1863	PPCODE:
1451	{	1864	{
1452	STRLEN svlen;	1865	STRLEN svlen;
1453	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1454	UV len = SvUV (length);	1867	UV len = SvUV (length);
		1868
		1869	if (flags < 0)
		1870	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1455		1871
1456	if (offset < 0)	1872	if (offset < 0)
1457	offset += svlen;	1873	offset += svlen;
1458		1874
1459	if (offset < 0 || offset > svlen)	1875	if (offset < 0 || offset > svlen)
…		…
1474	REQ_SEND;	1890	REQ_SEND;
1475	}	1891	}
1476	}	1892	}
1477		1893
1478	void	1894	void
1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1895	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1480	PPCODE:	1896	PPCODE:
1481	{	1897	{
1482	STRLEN svlen;	1898	STRLEN svlen;
1483	char *svptr = SvPVbyte (data, svlen);	1899	char *svptr = SvPVbyte (data, svlen);
1484	UV len = SvUV (length);	1900	UV len = SvUV (length);
…		…
1503	REQ_SEND;	1919	REQ_SEND;
1504	}	1920	}
1505	}	1921	}
1506		1922
1507	void	1923	void
1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1924	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1509	PPCODE:	1925	PPCODE:
1510	{	1926	{
1511	dREQ;	1927	dREQ;
1512		1928
1513	req->type = EIO_MLOCKALL;	1929	req->type = EIO_MLOCKALL;
…		…
1515		1931
1516	REQ_SEND;	1932	REQ_SEND;
1517	}	1933	}
1518		1934
1519	void	1935	void
1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1936	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1521	PPCODE:	1937	PPCODE:
1522	{	1938	{
1523	int fd = s_fileno_croak (fh, 0);	1939	int fd = s_fileno_croak (fh, 0);
1524	dREQ;	1940	dREQ;
1525		1941
1526	req->type = EIO_CUSTOM;	1942	req->type = EIO_CUSTOM;
1527	req->sv1 = newSVsv (fh);	1943	req->sv1 = newSVsv (fh);
1528	req->int1 = fd;	1944	req->int1 = fd;
…		…
1538		1954
1539	REQ_SEND;	1955	REQ_SEND;
1540	}	1956	}
1541		1957
1542	void	1958	void
		1959	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1960	PPCODE:
		1961	{
		1962	char *svptr = 0;
		1963
		1964	sv_clear_foreign (data);
		1965
		1966	if (length) /* known length, directly read into scalar */
		1967	{
		1968	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1969	svptr = sv_grow (data, length + 1);
		1970	else if (SvCUR (data) < length)
		1971	croak ("length outside of scalar, and cannot grow");
		1972	else
		1973	svptr = SvPVbyte_nolen (data);
		1974	}
		1975
		1976	{
		1977	dREQ;
		1978
		1979	req->type = EIO_SLURP;
		1980	req_set_path1 (req, pathname);
		1981	req->offs = offset;
		1982	req->size = length;
		1983	req->sv2 = SvREFCNT_inc (data);
		1984	req->ptr2 = svptr;
		1985
		1986	if (!SvREADONLY (data))
		1987	{
		1988	SvREADONLY_on (data);
		1989	req->flags |= FLAG_SV2_RO_OFF;
		1990	}
		1991
		1992	REQ_SEND;
		1993	}
		1994	}
		1995
		1996	void
1543	aio_busy (double delay, SV *callback=&PL_sv_undef)	1997	aio_busy (double delay, SV *callback = &PL_sv_undef)
1544	PPCODE:	1998	PPCODE:
1545	{	1999	{
1546	dREQ;	2000	dREQ;
1547		2001
1548	req->type = EIO_BUSY;	2002	req->type = EIO_BUSY;
…		…
1550		2004
1551	REQ_SEND;	2005	REQ_SEND;
1552	}	2006	}
1553		2007
1554	void	2008	void
1555	aio_group (SV *callback=&PL_sv_undef)	2009	aio_group (SV *callback = &PL_sv_undef)
1556	PPCODE:	2010	PPCODE:
1557	{	2011	{
1558	dREQ;	2012	dREQ;
1559		2013
1560	req->type = EIO_GROUP;	2014	req->type = EIO_GROUP;
1561		2015
		2016	PUTBACK;
1562	req_submit (req);	2017	req_submit (req);
		2018	SPAGAIN;
		2019
1563	XPUSHs (req_sv (req, aio_grp_stash));	2020	XPUSHs (req_sv (req, aio_grp_stash));
1564	}	2021	}
1565		2022
1566	void	2023	void
1567	aio_nop (SV *callback=&PL_sv_undef)	2024	aio_nop (SV *callback = &PL_sv_undef)
1568	ALIAS:	2025	ALIAS:
1569	aio_nop = EIO_NOP	2026	aio_nop = EIO_NOP
1570	aio_sync = EIO_SYNC	2027	aio_sync = EIO_SYNC
1571	PPCODE:	2028	PPCODE:
1572	{	2029	{
…		…
1576		2033
1577	REQ_SEND;	2034	REQ_SEND;
1578	}	2035	}
1579		2036
1580	int	2037	int
1581	aioreq_pri (int pri = 0)	2038	aioreq_pri (int pri = NO_INIT)
1582	CODE:	2039	CODE:
1583	RETVAL = next_pri;	2040	RETVAL = next_pri;
1584	if (items > 0)	2041	if (items > 0)
1585	{	2042	{
1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2043	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2133	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1677	OUTPUT:	2134	OUTPUT:
1678	RETVAL	2135	RETVAL
1679		2136
1680	void	2137	void
1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2138	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1682	PPCODE:	2139	PPCODE:
1683	sv_unmagic (scalar, MMAP_MAGIC);	2140	sv_clear_foreign (scalar);
1684	{	2141	{
1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2142	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2143	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1687	if (addr == (void *)-1)	2144	if (addr == (void *)-1)
1688	XSRETURN_NO;	2145	XSRETURN_NO;
1689		2146
1690	sv_force_normal (scalar);	2147	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		2148
1698	if (!(prot & PROT_WRITE))	2149	if (!(prot & PROT_WRITE))
1699	SvREADONLY_on (scalar);	2150	SvREADONLY_on (scalar);
1700		2151
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;	2152	XSRETURN_YES;
1710	}	2153	}
1711		2154
1712	void	2155	void
1713	munmap (SV *scalar)	2156	munmap (SV *scalar)
1714	CODE:	2157	CODE:
1715	sv_unmagic (scalar, MMAP_MAGIC);	2158	sv_clear_foreign (scalar);
		2159
		2160	SV *
		2161	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2162	CODE:
		2163	{
		2164	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2165	void *new;
		2166
		2167	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2168	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2169
		2170	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2171
		2172	RETVAL = &PL_sv_no;
		2173
		2174	if (new != (void *)-1)
		2175	{
		2176	RETVAL = new == (void *)mg->mg_ptr
		2177	? newSVpvn ("0 but true", 10)
		2178	: &PL_sv_yes;
		2179
		2180	mg->mg_ptr = (char *)new;
		2181	mg->mg_obj = (SV *)new_length;
		2182
		2183	SvPVX (scalar) = mg->mg_ptr;
		2184	SvCUR_set (scalar, new_length);
		2185	}
		2186	}
		2187	OUTPUT:
		2188	RETVAL
1716		2189
1717	int	2190	int
1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2191	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1719	ALIAS:	2192	ALIAS:
1720	mprotect = 1	2193	mprotect = 1
1721	CODE:	2194	CODE:
1722	{	2195	{
1723	STRLEN svlen;	2196	STRLEN svlen;
1724	void *addr = SvPVbyte (scalar, svlen);	2197	void *addr = SvPVbyte (scalar, svlen);
1725	size_t len = SvUV (length);	2198	STRLEN len = SvUV (length);
1726		2199
1727	if (offset < 0)	2200	if (offset < 0)
1728	offset += svlen;	2201	offset += svlen;
1729		2202
1730	if (offset < 0 || offset > svlen)	2203	if (offset < 0 || offset > svlen)
…		…
1744	}	2217	}
1745	OUTPUT:	2218	OUTPUT:
1746	RETVAL	2219	RETVAL
1747		2220
1748	int	2221	int
1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2222	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1750	CODE:	2223	CODE:
1751	{	2224	{
1752	STRLEN svlen;	2225	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2226	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2227	size_t len = SvUV (length);
1755		2228
1756	if (offset < 0)	2229	if (offset < 0)
1757	offset += svlen;	2230	offset += svlen;
1758		2231
…		…
1765	addr = (void *)(((intptr_t)addr) + offset);	2238	addr = (void *)(((intptr_t)addr) + offset);
1766	eio_page_align (&addr, &len);	2239	eio_page_align (&addr, &len);
1767	#if _POSIX_MEMLOCK_RANGE	2240	#if _POSIX_MEMLOCK_RANGE
1768	RETVAL = munlock (addr, len);	2241	RETVAL = munlock (addr, len);
1769	#else	2242	#else
1770	RETVAL = ((errno = ENOSYS), -1);	2243	RETVAL = EIO_ENOSYS ();
1771	#endif	2244	#endif
1772	}	2245	}
1773	OUTPUT:	2246	OUTPUT:
		2247	RETVAL
		2248
		2249	int
		2250	mlockall (int flags)
		2251	PROTOTYPE: $;
		2252	CODE:
		2253	RETVAL = eio_mlockall_sync (flags);
		2254	OUTPUT:
1774	RETVAL	2255	RETVAL
1775		2256
1776	int	2257	int
1777	munlockall ()	2258	munlockall ()
1778	CODE:	2259	CODE:
1779	#if _POSIX_MEMLOCK	2260	#if _POSIX_MEMLOCK
1780	munlockall ();	2261	munlockall ();
1781	#else	2262	#else
1782	RETVAL = -1;	2263	RETVAL = EIO_ENOSYS ();
1783	errno = ENOSYS;
1784	#endif	2264	#endif
1785	OUTPUT:	2265	OUTPUT:
1786	RETVAL	2266	RETVAL
		2267
		2268	int
		2269	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2270	CODE:
		2271	{
		2272	#if HAVE_LINUX_SPLICE
		2273	loff_t off_in_, off_out_;
		2274	RETVAL = splice (
		2275	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2276	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2277	length, flags
		2278	);
		2279	#else
		2280	RETVAL = EIO_ENOSYS ();
		2281	#endif
		2282	}
		2283	OUTPUT:
		2284	RETVAL
		2285
		2286	int
		2287	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2288	CODE:
		2289	#if HAVE_LINUX_SPLICE
		2290	RETVAL = tee (rfh, wfh, length, flags);
		2291	#else
		2292	RETVAL = EIO_ENOSYS ();
		2293	#endif
		2294	OUTPUT:
		2295	RETVAL
		2296
		2297	int
		2298	pipesize (aio_rfd rfh, int new_size = -1)
		2299	PROTOTYPE: $;$
		2300	CODE:
		2301	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2302	if (new_size >= 0)
		2303	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2304	else
		2305	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2306	#else
		2307	errno = ENOSYS;
		2308	RETVAL = -1;
		2309	#endif
		2310	OUTPUT:
		2311	RETVAL
		2312
		2313	void
		2314	pipe2 (int flags = 0)
		2315	PROTOTYPE: ;$
		2316	PPCODE:
		2317	{
		2318	int fd[2];
		2319	int res;
		2320
		2321	if (flags)
		2322	#if HAVE_PIPE2
		2323	res = pipe2 (fd, flags);
		2324	#else
		2325	res = (errno = ENOSYS, -1);
		2326	#endif
		2327	else
		2328	res = pipe (fd);
		2329
		2330	if (!res)
		2331	{
		2332	EXTEND (SP, 2);
		2333	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2334	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2335	}
		2336	}
		2337
		2338	void
		2339	eventfd (unsigned int initval = 0, int flags = 0)
		2340	PPCODE:
		2341	{
		2342	int fd;
		2343	#if HAVE_EVENTFD
		2344	fd = eventfd (initval, flags);
		2345	#else
		2346	fd = (errno = ENOSYS, -1);
		2347	#endif
		2348
		2349	XPUSHs (newmortalFH (fd, O_RDWR));
		2350	}
		2351
		2352	void
		2353	timerfd_create (int clockid, int flags = 0)
		2354	PPCODE:
		2355	{
		2356	int fd;
		2357	#if HAVE_TIMERFD
		2358	fd = timerfd_create (clockid, flags);
		2359	#else
		2360	fd = (errno = ENOSYS, -1);
		2361	#endif
		2362
		2363	XPUSHs (newmortalFH (fd, O_RDWR));
		2364	}
		2365
		2366	void
		2367	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2368	PPCODE:
		2369	{
		2370	int fd = s_fileno_croak (fh, 0);
		2371	#if HAVE_TIMERFD
		2372	int res;
		2373	struct itimerspec its, ots;
		2374
		2375	ts_set (&its.it_interval, interval);
		2376	ts_set (&its.it_value , value);
		2377	res = timerfd_settime (fd, flags, &its, &ots);
		2378
		2379	if (!res)
		2380	{
		2381	EXTEND (SP, 2);
		2382	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2383	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2384	}
		2385	#else
		2386	errno = ENOSYS;
		2387	#endif
		2388	}
		2389
		2390	void
		2391	timerfd_gettime (SV *fh)
		2392	PPCODE:
		2393	{
		2394	int fd = s_fileno_croak (fh, 0);
		2395	#if HAVE_TIMERFD
		2396	int res;
		2397	struct itimerspec ots;
		2398	res = timerfd_gettime (fd, &ots);
		2399
		2400	if (!res)
		2401	{
		2402	EXTEND (SP, 2);
		2403	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2404	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2405	}
		2406	#else
		2407	errno = ENOSYS;
		2408	#endif
		2409	}
		2410
		2411	UV
		2412	get_fdlimit ()
		2413	CODE:
		2414	#if HAVE_RLIMITS
		2415	struct rlimit rl;
		2416	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2417	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2418	#endif
		2419	XSRETURN_UNDEF;
		2420	OUTPUT:
		2421	RETVAL
		2422
		2423	void
		2424	min_fdlimit (UV limit = 0x7fffffffU)
		2425	CODE:
		2426	{
		2427	#if HAVE_RLIMITS
		2428	struct rlimit rl;
		2429	rlim_t orig_rlim_max;
		2430	UV bit;
		2431
		2432	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2433	goto fail;
		2434
		2435	if (rl.rlim_cur == RLIM_INFINITY)
		2436	XSRETURN_YES;
		2437
		2438	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2439
		2440	if (rl.rlim_cur < limit)
		2441	{
		2442	rl.rlim_cur = limit;
		2443
		2444	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2445	rl.rlim_max = rl.rlim_cur;
		2446	}
		2447
		2448	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2449	XSRETURN_YES;
		2450
		2451	if (errno == EPERM)
		2452	{
		2453	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2454	/* our limit overflows a system-wide limit */
		2455	/* try an adaptive algorithm, but do not lower the hardlimit */
		2456	rl.rlim_max = 0;
		2457	for (bit = 0x40000000U; bit; bit >>= 1)
		2458	{
		2459	rl.rlim_max |= bit;
		2460	rl.rlim_cur = rl.rlim_max;
		2461
		2462	/* nevr decrease the hard limit */
		2463	if (rl.rlim_max < orig_rlim_max)
		2464	break;
		2465
		2466	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2467	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2468	}
		2469
		2470	/* now, raise the soft limit to the max permitted */
		2471	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2472	{
		2473	rl.rlim_cur = rl.rlim_max;
		2474	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2475	errno = EPERM;
		2476	}
		2477	}
		2478	#endif
		2479	fail:
		2480	XSRETURN_UNDEF;
		2481	}
1787		2482
1788	void _on_next_submit (SV *cb)	2483	void _on_next_submit (SV *cb)
1789	CODE:	2484	CODE:
1790	SvREFCNT_dec (on_next_submit);	2485	SvREFCNT_dec (on_next_submit);
1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2486	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1826	cancel (aio_req_ornot req)	2521	cancel (aio_req_ornot req)
1827	CODE:	2522	CODE:
1828	eio_cancel (req);	2523	eio_cancel (req);
1829		2524
1830	void	2525	void
1831	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2526	cb (aio_req_ornot req, SV *callback = NO_INIT)
1832	PPCODE:	2527	PPCODE:
1833	{	2528	{
1834	if (GIMME_V != G_VOID)	2529	if (GIMME_V != G_VOID)
1835	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2530	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1836		2531
1837	if (items > 1)	2532	if (items > 1)
1838	{	2533	{
1839	SV *cb_cv =get_cb (callback);	2534	SV *cb_cv = get_cb (callback);
1840		2535
1841	SvREFCNT_dec (req->callback);	2536	SvREFCNT_dec (req->callback);
1842	req->callback = SvREFCNT_inc (cb_cv);	2537	req->callback = SvREFCNT_inc (cb_cv);
1843	}	2538	}
1844	}	2539	}
…		…
1901	limit (aio_req grp, int limit)	2596	limit (aio_req grp, int limit)
1902	CODE:	2597	CODE:
1903	eio_grp_limit (grp, limit);	2598	eio_grp_limit (grp, limit);
1904		2599
1905	void	2600	void
1906	feed (aio_req grp, SV *callback=&PL_sv_undef)	2601	feed (aio_req grp, SV *callback = &PL_sv_undef)
1907	CODE:	2602	CODE:
1908	{	2603	{
1909	SvREFCNT_dec (grp->sv2);	2604	SvREFCNT_dec (grp->sv2);
1910	grp->sv2 = newSVsv (callback);	2605	grp->sv2 = newSVsv (callback);
1911	grp->feed = aio_grp_feed;	2606	grp->feed = aio_grp_feed;

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