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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.212 by root, Sun Apr 8 00:11:50 2012 UTC vs.
Revision 1.268 by root, Thu Nov 29 19:49:48 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
27	# include <linux/types.h>	31	# include <linux/types.h>
28	# include <linux/fiemap.h>	32	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	33	# define HAVE_FIEMAP 1
…		…
70	#undef fchmod	74	#undef fchmod
71	#undef dup	75	#undef dup
72	#undef dup2	76	#undef dup2
73	#undef abort	77	#undef abort
74	#undef pipe	78	#undef pipe
		79	#undef utime
75		80
76	#define EIO_STRUCT_STAT struct _stati64	81	#define EIO_STRUCT_STAT struct _stati64
77	#define EIO_STRUCT_STATI64	82	#define EIO_STRUCT_STATI64
78		83
79	#else	84	#else
…		…
98		103
99	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
101		106
102	/*****************************************************************************/	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
103		166
104	typedef SV SV8; /* byte-sv, used for argument-checking */	167	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	168	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	169	typedef int aio_wfd; /* write file descriptor */
107		170
…		…
114	STRLEN stroffset; \	177	STRLEN stroffset; \
115	SV *self;	178	SV *self;
116		179
117	#define EIO_NO_WRAPPERS 1	180	#define EIO_NO_WRAPPERS 1
118		181
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	182	#include "libeio/eio.h"
121		183
122	static int req_invoke (eio_req *req);	184	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	185	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	186	static void req_destroy (eio_req *grp);
…		…
140	# else	202	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	203	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	204	# endif
143	#endif	205	#endif
144		206
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	207	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	208	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	209	#endif
151	#ifndef major	210	#ifndef major
152	# define major(dev) ((dev) >> 8)	211	# define major(dev) ((dev) >> 8)
153	#endif	212	#endif
154	#ifndef minor	213	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	214	# define minor(dev) ((dev) & 0xff)
156	#endif	215	#endif
157		216
		217	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		218	#ifdef __sun
158	#ifndef PAGESIZE	219	# undef PAGESIZE
		220	#endif
		221
		222	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	223	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#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"
161		326
162	/*****************************************************************************/	327	/*****************************************************************************/
163		328
164	static void	329	static void
165	fiemap (eio_req *req)	330	fiemap (eio_req *req)
166	{	331	{
167	req->result = -1;	332	req->result = -1;
168		333
169	#if HAVE_FIEMAP	334	#if HAVE_FIEMAP
		335	/* assume some c99 */
		336	struct fiemap *fiemap = 0;
		337	size_t end_offset;
170	int count = req->int3;	338	int count = req->int3;
171		339
172	/* heuristic: first try with 64 extents if we don't know how many, */	340	req->flags |= EIO_FLAG_PTR1_FREE;
173	/* as most files have (hopefully) fewer than this many extents */	341
174	/* 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 */
175	if (count < 0)	344	if (count < 0)
176	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);
177		375
178	for (;;)	376	for (;;)
179	{	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;
180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	395	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181	errno = ENOMEM;	396	errno = ENOMEM;
182	if (!fiemap)	397	if (!fiemap)
183	return;	398	return;
184		399
185	req->ptr1 = fiemap;	400	req->ptr1 = fiemap;
186	req->flags |= EIO_FLAG_PTR1_FREE;
187		401
188	fiemap->fm_start = req->offs;	402	for (count = 0; count < incmap->fm_mapped_extents; ++count)
189	fiemap->fm_length = req->size;	403	{
190	fiemap->fm_flags = req->int2;	404	struct fiemap_extent *e = incmap->fm_extents + count;
191	fiemap->fm_extent_count = count;
192		405
193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	406	if (e->fe_logical + e->fe_length >= end_offset)
194	return;	407	goto done;
195		408
196	if (req->int3 >= 0)	409	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
197	break; /* when not autosizing we are done */
198		410
199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)	411	if (e->fe_flags & FIEMAP_EXTENT_LAST)
200	break; /* autosizing successful, we are done */	412	goto done;
201		413
202	fiemap->fm_flags = req->int2;	414	}
203	fiemap->fm_extent_count = 0;
204
205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206	return;
207
208	count = fiemap->fm_mapped_extents;
209
210	free (fiemap);
211	}	415	}
212		416
		417	done:
213	req->result = 0;	418	req->result = 0;
214		419
215	#else	420	#else
216	errno = ENOSYS;	421	errno = ENOSYS;
217	#endif	422	#endif
218	}	423	}
219		424
220	/*****************************************************************************/	425	/*****************************************************************************/
		426
		427	static int close_fd; /* dummy fd to close fds via dup2 */
221		428
222	enum {	429	enum {
223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	430	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
224	};	431	};
225		432
…		…
264	}	471	}
265		472
266	static SV *	473	static SV *
267	newSVaio_wd (aio_wd wd)	474	newSVaio_wd (aio_wd wd)
268	{	475	{
269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	476	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
270	}	477	}
271		478
272	static aio_req	479	static aio_req
273	SvAIO_REQ (SV *sv)	480	SvAIO_REQ (SV *sv)
274	{	481	{
…		…
293	|| SvTYPE (SvRV (sv)) != SVt_PVMG	500	|| SvTYPE (SvRV (sv)) != SVt_PVMG
294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	501	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
295	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");
296		503
297	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;
298	}	530	}
299		531
300	static void	532	static void
301	aio_grp_feed (aio_req grp)	533	aio_grp_feed (aio_req grp)
302	{	534	{
…		…
430	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))));
431	}	663	}
432	break;	664	break;
433		665
434	case EIO_OPEN:	666	case EIO_OPEN:
435	{	667	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
436	/* convert fd to fh */
437	SV *fh = &PL_sv_undef;
438
439	if (req->result >= 0)
440	{
441	GV *gv = (GV *)sv_newmortal ();
442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
443	char sym [64];
444	int symlen;
445
446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
447	gv_init (gv, aio_stash, sym, symlen, 0);
448
449	symlen = snprintf (
450	sym,
451	sizeof (sym),
452	"%s&=%d",
453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454	(int)req->result
455	);
456
457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458	fh = (SV *)gv;
459	}
460
461	PUSHs (fh);
462	}
463	break;	668	break;
464		669
465	case EIO_STATVFS:	670	case EIO_STATVFS:
466	case EIO_FSTATVFS:	671	case EIO_FSTATVFS:
467	{	672	{
…		…
470	#ifndef _WIN32	675	#ifndef _WIN32
471	if (req->result >= 0)	676	if (req->result >= 0)
472	{	677	{
473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	678	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474	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));
475		685
476	rv = sv_2mortal (newRV_noinc ((SV *)hv));	686	rv = sv_2mortal (newRV_noinc ((SV *)hv));
477		687
478	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);
479	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);
…		…
481	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);
482	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);
483	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);
484	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);
485	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);
486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	696	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
487	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);
488	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);
489	}	699	}
490	#endif	700	#endif
491		701
…		…
542	SvSETMAGIC (req->sv2);	752	SvSETMAGIC (req->sv2);
543	PUSHs (sv_result);	753	PUSHs (sv_result);
544	}	754	}
545	break;	755	break;
546		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
547	case EIO_CUSTOM:	781	case EIO_CUSTOM:
548	if (req->feed == fiemap)	782	if (req->feed == fiemap)
549	{	783	{
550	#if HAVE_FIEMAP	784	#if HAVE_FIEMAP
551	if (!req->result)	785	if (!req->result)
…		…
656	{	890	{
657	while (eio_nreqs ())	891	while (eio_nreqs ())
658	{	892	{
659	int size;	893	int size;
660		894
661	X_LOCK (reslock);	895	X_LOCK (EIO_POOL->reslock);
662	size = res_queue.size;	896	size = EIO_POOL->res_queue.size;
663	X_UNLOCK (reslock);	897	X_UNLOCK (EIO_POOL->reslock);
664		898
665	if (size)	899	if (size)
666	return;	900	return;
667		901
668	etp_maybe_start_thread ();	902	etp_maybe_start_thread (EIO_POOL);
669		903
670	s_epipe_wait (&respipe);	904	s_epipe_wait (&respipe);
671	}	905	}
672	}	906	}
673		907
…		…
694	create_respipe ();	928	create_respipe ();
695		929
696	if (eio_init (want_poll, done_poll) < 0)	930	if (eio_init (want_poll, done_poll) < 0)
697	croak ("IO::AIO: unable to initialise eio library");	931	croak ("IO::AIO: unable to initialise eio library");
698	}	932	}
699
700	/*****************************************************************************/
701
702	#if !_POSIX_MAPPED_FILES
703	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
704	# define munmap(addr,length) (errno = ENOSYS, -1)
705	#endif
706
707	#if !_POSIX_MEMORY_PROTECTION
708	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
709	# define PROT_NONE 0
710	# define PROT_WRITE 0
711	# define MAP_PRIVATE 0
712	# define MAP_SHARED 0
713	# define MAP_FIXED 0
714	#endif
715
716	#define MMAP_MAGIC PERL_MAGIC_ext
717
718	static int ecb_cold
719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
720	{
721	int old_errno = errno;
722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723	errno = old_errno;
724
725	mg->mg_obj = 0; /* just in case */
726
727	SvREADONLY_off (sv);
728
729	if (SvPVX (sv) != mg->mg_ptr)
730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732	SvCUR_set (sv, 0);
733	SvPVX (sv) = 0;
734	SvOK_off (sv);
735
736	return 0;
737	}
738
739	static MGVTBL mmap_vtbl = {
740	0, 0, 0, 0, mmap_free
741	};
742		933
743	/*****************************************************************************/	934	/*****************************************************************************/
744		935
745	static SV *	936	static SV *
746	get_cb (SV *cb_sv)	937	get_cb (SV *cb_sv)
…		…
842	req_set_path1 (req, fh_or_path);	1033	req_set_path1 (req, fh_or_path);
843	break;	1034	break;
844	}	1035	}
845	}	1036	}
846		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
847	XS(boot_IO__AIO) ecb_cold;	1055	XS(boot_IO__AIO) ecb_cold;
848		1056
849	MODULE = IO::AIO PACKAGE = IO::AIO	1057	MODULE = IO::AIO PACKAGE = IO::AIO
850		1058
851	PROTOTYPES: ENABLE	1059	PROTOTYPES: ENABLE
…		…
858	} *civ, const_iv[] = {	1066	} *civ, const_iv[] = {
859	# define const_niv(name, value) { # name, (IV) value },	1067	# define const_niv(name, value) { # name, (IV) value },
860	# define const_iv(name) { # name, (IV) name },	1068	# define const_iv(name) { # name, (IV) name },
861	# define const_eio(name) { # name, (IV) EIO_ ## name },	1069	# define const_eio(name) { # name, (IV) EIO_ ## name },
862		1070
863	/* 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 */
864		1072	/* the first block can be undef if missing */
865	const_iv (ENOSYS)	1073	const_iv (ENOSYS)
866	const_iv (EXDEV)	1074	const_iv (EXDEV)
867	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)
868		1096
869	const_iv (O_RDONLY)	1097	const_iv (O_RDONLY)
870	const_iv (O_WRONLY)	1098	const_iv (O_WRONLY)
871	const_iv (O_RDWR)	1099	const_iv (O_RDWR)
872	const_iv (O_CREAT)	1100	const_iv (O_CREAT)
…		…
886	const_iv (O_SEARCH)	1114	const_iv (O_SEARCH)
887	const_iv (O_DIRECTORY)	1115	const_iv (O_DIRECTORY)
888	const_iv (O_DSYNC)	1116	const_iv (O_DSYNC)
889	const_iv (O_RSYNC)	1117	const_iv (O_RSYNC)
890	const_iv (O_SYNC)	1118	const_iv (O_SYNC)
		1119	const_iv (O_PATH)
		1120	const_iv (O_TMPFILE)
891	const_iv (O_TTY_INIT)	1121	const_iv (O_TTY_INIT)
892		1122
893	const_iv (S_IFIFO)	1123	const_iv (S_IFIFO)
894	const_iv (S_IFCHR)	1124	const_iv (S_IFCHR)
895	const_iv (S_IFBLK)	1125	const_iv (S_IFBLK)
…		…
897	const_iv (S_IFREG)	1127	const_iv (S_IFREG)
898	const_iv (S_IFDIR)	1128	const_iv (S_IFDIR)
899	const_iv (S_IFWHT)	1129	const_iv (S_IFWHT)
900	const_iv (S_IFSOCK)	1130	const_iv (S_IFSOCK)
901	const_iv (S_IFMT)	1131	const_iv (S_IFMT)
902
903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
909
910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
915		1132
916	const_iv (ST_RDONLY)	1133	const_iv (ST_RDONLY)
917	const_iv (ST_NOSUID)	1134	const_iv (ST_NOSUID)
918	const_iv (ST_NODEV)	1135	const_iv (ST_NODEV)
919	const_iv (ST_NOEXEC)	1136	const_iv (ST_NOEXEC)
…		…
929	const_iv (PROT_NONE)	1146	const_iv (PROT_NONE)
930	const_iv (PROT_EXEC)	1147	const_iv (PROT_EXEC)
931	const_iv (PROT_READ)	1148	const_iv (PROT_READ)
932	const_iv (PROT_WRITE)	1149	const_iv (PROT_WRITE)
933		1150
934	/*const_iv (MAP_FIXED)*/
935	const_iv (MAP_PRIVATE)	1151	const_iv (MAP_PRIVATE)
936	const_iv (MAP_SHARED)	1152	const_iv (MAP_SHARED)
		1153	const_iv (MAP_FIXED)
937	const_iv (MAP_ANONYMOUS)	1154	const_iv (MAP_ANONYMOUS)
938		1155
939	/* linuxish */	1156	/* linuxish */
940	const_iv (MAP_HUGETLB)
941	const_iv (MAP_LOCKED)	1157	const_iv (MAP_LOCKED)
942	const_iv (MAP_NORESERVE)	1158	const_iv (MAP_NORESERVE)
943	const_iv (MAP_POPULATE)	1159	const_iv (MAP_POPULATE)
944	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)
945		1234
946	const_iv (FIEMAP_FLAG_SYNC)	1235	const_iv (FIEMAP_FLAG_SYNC)
947	const_iv (FIEMAP_FLAG_XATTR)	1236	const_iv (FIEMAP_FLAG_XATTR)
948	const_iv (FIEMAP_FLAGS_COMPAT)	1237	const_iv (FIEMAP_FLAGS_COMPAT)
949	const_iv (FIEMAP_EXTENT_LAST)	1238	const_iv (FIEMAP_EXTENT_LAST)
…		…
956	const_iv (FIEMAP_EXTENT_DATA_TAIL)	1245	const_iv (FIEMAP_EXTENT_DATA_TAIL)
957	const_iv (FIEMAP_EXTENT_UNWRITTEN)	1246	const_iv (FIEMAP_EXTENT_UNWRITTEN)
958	const_iv (FIEMAP_EXTENT_MERGED)	1247	const_iv (FIEMAP_EXTENT_MERGED)
959	const_iv (FIEMAP_EXTENT_SHARED)	1248	const_iv (FIEMAP_EXTENT_SHARED)
960		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 */
961	const_eio (SEEK_SET)	1272	const_eio (SEEK_SET)
962	const_eio (SEEK_CUR)	1273	const_eio (SEEK_CUR)
963	const_eio (SEEK_END)	1274	const_eio (SEEK_END)
964		1275
965	const_eio (MCL_FUTURE)	1276	const_eio (MCL_FUTURE)
966	const_eio (MCL_CURRENT)	1277	const_eio (MCL_CURRENT)
		1278	const_eio (MCL_ONFAULT)
967		1279
968	const_eio (MS_ASYNC)	1280	const_eio (MS_ASYNC)
969	const_eio (MS_INVALIDATE)	1281	const_eio (MS_INVALIDATE)
970	const_eio (MS_SYNC)	1282	const_eio (MS_SYNC)
971		1283
…		…
974	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1286	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
975	const_eio (SYNC_FILE_RANGE_WRITE)	1287	const_eio (SYNC_FILE_RANGE_WRITE)
976	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1288	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
977		1289
978	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)
979		1300
980	const_eio (READDIR_DENTS)	1301	const_eio (READDIR_DENTS)
981	const_eio (READDIR_DIRS_FIRST)	1302	const_eio (READDIR_DIRS_FIRST)
982	const_eio (READDIR_STAT_ORDER)	1303	const_eio (READDIR_STAT_ORDER)
983	const_eio (READDIR_FOUND_UNKNOWN)	1304	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1001	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--)
1002	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1323	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1003		1324
1004	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1325	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1005		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
1006	reinit ();	1345	reinit ();
1007	}	1346	}
1008		1347
1009	void	1348	void
1010	reinit ()	1349	reinit ()
…		…
1051	PROTOTYPE: $	1390	PROTOTYPE: $
1052	CODE:	1391	CODE:
1053	max_outstanding = maxreqs;	1392	max_outstanding = maxreqs;
1054		1393
1055	void	1394	void
1056	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1395	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1057	PPCODE:	1396	PPCODE:
1058	{	1397	{
1059	dREQ;	1398	dREQ;
1060		1399
1061	req->type = EIO_WD_OPEN;	1400	req->type = EIO_WD_OPEN;
…		…
1063		1402
1064	REQ_SEND;	1403	REQ_SEND;
1065	}	1404	}
1066		1405
1067	void	1406	void
1068	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)
1069	PPCODE:	1408	PPCODE:
1070	{	1409	{
1071	dREQ;	1410	dREQ;
1072		1411
1073	req->type = EIO_OPEN;	1412	req->type = EIO_OPEN;
…		…
1077		1416
1078	REQ_SEND;	1417	REQ_SEND;
1079	}	1418	}
1080		1419
1081	void	1420	void
1082	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1421	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1083	ALIAS:	1422	ALIAS:
1084	aio_fsync = EIO_FSYNC	1423	aio_fsync = EIO_FSYNC
1085	aio_fdatasync = EIO_FDATASYNC	1424	aio_fdatasync = EIO_FDATASYNC
1086	aio_syncfs = EIO_SYNCFS	1425	aio_syncfs = EIO_SYNCFS
1087	PPCODE:	1426	PPCODE:
1088	{	1427	{
1089	int fd = s_fileno_croak (fh, 0);	1428	int fd = s_fileno_croak (fh, 0);
1090	dREQ;	1429	dREQ;
1091		1430
1092	req->type = ix;	1431	req->type = ix;
1093	req->sv1 = newSVsv (fh);	1432	req->sv1 = newSVsv (fh);
1094	req->int1 = fd;	1433	req->int1 = fd;
1095		1434
1096	REQ_SEND;	1435	REQ_SEND;
1097	}	1436	}
1098		1437
1099	void	1438	void
1100	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)
1101	PPCODE:	1440	PPCODE:
1102	{	1441	{
1103	int fd = s_fileno_croak (fh, 0);	1442	int fd = s_fileno_croak (fh, 0);
1104	dREQ;	1443	dREQ;
1105		1444
1106	req->type = EIO_SYNC_FILE_RANGE;	1445	req->type = EIO_SYNC_FILE_RANGE;
1107	req->sv1 = newSVsv (fh);	1446	req->sv1 = newSVsv (fh);
1108	req->int1 = fd;	1447	req->int1 = fd;
…		…
1112		1451
1113	REQ_SEND;	1452	REQ_SEND;
1114	}	1453	}
1115		1454
1116	void	1455	void
1117	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)
1118	PPCODE:	1457	PPCODE:
1119	{	1458	{
1120	int fd = s_fileno_croak (fh, 0);	1459	int fd = s_fileno_croak (fh, 0);
1121	dREQ;	1460	dREQ;
1122		1461
1123	req->type = EIO_FALLOCATE;	1462	req->type = EIO_FALLOCATE;
1124	req->sv1 = newSVsv (fh);	1463	req->sv1 = newSVsv (fh);
1125	req->int1 = fd;	1464	req->int1 = fd;
…		…
1129		1468
1130	REQ_SEND;	1469	REQ_SEND;
1131	}	1470	}
1132		1471
1133	void	1472	void
1134	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1473	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1135	PPCODE:	1474	PPCODE:
1136	{	1475	{
1137	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1138	int fd = s_fileno_croak (fh, 0);	1476	int fd = s_fileno_croak (fh, 0);
1139	dREQ;	1477	dREQ;
1140
1141	if (expect_false (close_fd < 0))
1142	{
1143	int pipefd [2];
1144
1145	if (
1146	#ifdef _WIN32
1147	_pipe (pipefd, 1, _O_BINARY) < 0
1148	#else
1149	pipe (pipefd) < 0
1150	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1151	#endif
1152	|| close (pipefd [1]) < 0
1153	)
1154	abort (); /*D*/
1155
1156	close_fd = pipefd [0];
1157	}
1158		1478
1159	req->type = EIO_DUP2;	1479	req->type = EIO_DUP2;
1160	req->int1 = close_fd;	1480	req->int1 = close_fd;
1161	req->sv2 = newSVsv (fh);	1481	req->sv2 = newSVsv (fh);
1162	req->int2 = fd;	1482	req->int2 = fd;
1163		1483
1164	REQ_SEND;	1484	REQ_SEND;
1165	}	1485	}
1166		1486
1167	void	1487	void
1168	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)
1169	PPCODE:	1489	PPCODE:
1170	{	1490	{
1171	int fd = s_fileno_croak (fh, 0);	1491	int fd = s_fileno_croak (fh, 0);
1172	dREQ;	1492	dREQ;
1173		1493
…		…
1179		1499
1180	REQ_SEND;	1500	REQ_SEND;
1181	}	1501	}
1182		1502
1183	void	1503	void
1184	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)
1185	ALIAS:	1505	ALIAS:
1186	aio_read = EIO_READ	1506	aio_read = EIO_READ
1187	aio_write = EIO_WRITE	1507	aio_write = EIO_WRITE
1188	PPCODE:	1508	PPCODE:
1189	{	1509	{
…		…
1205	len = svlen - dataoffset;	1525	len = svlen - dataoffset;
1206	}	1526	}
1207	else	1527	else
1208	{	1528	{
1209	/* read: check type and grow scalar as necessary */	1529	/* read: check type and grow scalar as necessary */
1210	SvUPGRADE (data, SVt_PV);	1530	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1211	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");
1212	}	1534	}
1213		1535
1214	{	1536	{
1215	dREQ;	1537	dREQ;
1216		1538
…		…
1232	REQ_SEND;	1554	REQ_SEND;
1233	}	1555	}
1234	}	1556	}
1235		1557
1236	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
1237	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1599	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1238	ALIAS:	1600	ALIAS:
1239	aio_readlink = EIO_READLINK	1601	aio_readlink = EIO_READLINK
1240	aio_realpath = EIO_REALPATH	1602	aio_realpath = EIO_REALPATH
1241	PPCODE:	1603	PPCODE:
1242	{	1604	{
…		…
1247		1609
1248	REQ_SEND;	1610	REQ_SEND;
1249	}	1611	}
1250		1612
1251	void	1613	void
1252	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)
1253	PPCODE:	1615	PPCODE:
1254	{	1616	{
1255	int ifd = s_fileno_croak (in_fh , 0);	1617	int ifd = s_fileno_croak (in_fh , 0);
1256	int ofd = s_fileno_croak (out_fh, 1);	1618	int ofd = s_fileno_croak (out_fh, 1);
1257	dREQ;	1619	dREQ;
1258		1620
1259	req->type = EIO_SENDFILE;	1621	req->type = EIO_SENDFILE;
1260	req->sv1 = newSVsv (out_fh);	1622	req->sv1 = newSVsv (out_fh);
1261	req->int1 = ofd;	1623	req->int1 = ofd;
…		…
1266		1628
1267	REQ_SEND;	1629	REQ_SEND;
1268	}	1630	}
1269		1631
1270	void	1632	void
1271	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)
1272	PPCODE:	1634	PPCODE:
1273	{	1635	{
1274	int fd = s_fileno_croak (fh, 0);	1636	int fd = s_fileno_croak (fh, 0);
1275	dREQ;	1637	dREQ;
1276		1638
1277	req->type = EIO_READAHEAD;	1639	req->type = EIO_READAHEAD;
1278	req->sv1 = newSVsv (fh);	1640	req->sv1 = newSVsv (fh);
1279	req->int1 = fd;	1641	req->int1 = fd;
…		…
1282		1644
1283	REQ_SEND;	1645	REQ_SEND;
1284	}	1646	}
1285		1647
1286	void	1648	void
1287	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1649	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1288	ALIAS:	1650	ALIAS:
1289	aio_stat = EIO_STAT	1651	aio_stat = EIO_STAT
1290	aio_lstat = EIO_LSTAT	1652	aio_lstat = EIO_LSTAT
1291	aio_statvfs = EIO_STATVFS	1653	aio_statvfs = EIO_STATVFS
1292	PPCODE:	1654	PPCODE:
…		…
1296	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);
1297		1659
1298	REQ_SEND;	1660	REQ_SEND;
1299	}	1661	}
1300		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
1301	UV	1697	UV
1302	major (UV dev)	1698	major (UV dev)
1303	ALIAS:	1699	ALIAS:
1304	minor = 1	1700	minor = 1
1305	CODE:	1701	CODE:
1306	RETVAL = ix ? major (dev) : minor (dev);	1702	RETVAL = ix ? minor (dev) : major (dev);
1307	OUTPUT:	1703	OUTPUT:
1308	RETVAL	1704	RETVAL
1309		1705
1310	UV	1706	UV
1311	makedev (UV maj, UV min)	1707	makedev (UV maj, UV min)
…		…
1313	RETVAL = makedev (maj, min);	1709	RETVAL = makedev (maj, min);
1314	OUTPUT:	1710	OUTPUT:
1315	RETVAL	1711	RETVAL
1316		1712
1317	void	1713	void
1318	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)
1319	PPCODE:	1715	PPCODE:
1320	{	1716	{
1321	dREQ;	1717	dREQ;
1322		1718
1323	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1719	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1326		1722
1327	REQ_SEND;	1723	REQ_SEND;
1328	}	1724	}
1329		1725
1330	void	1726	void
1331	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)
1332	PPCODE:	1728	PPCODE:
1333	{	1729	{
1334	dREQ;	1730	dREQ;
1335		1731
1336	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1732	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1338		1734
1339	REQ_SEND;	1735	REQ_SEND;
1340	}	1736	}
1341		1737
1342	void	1738	void
1343	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)
1344	PPCODE:	1740	PPCODE:
1345	{	1741	{
1346	dREQ;	1742	dREQ;
1347		1743
1348	req->int2 = mode;	1744	req->int2 = mode;
…		…
1350		1746
1351	REQ_SEND;	1747	REQ_SEND;
1352	}	1748	}
1353		1749
1354	void	1750	void
1355	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)
1356	PPCODE:	1752	PPCODE:
1357	{	1753	{
1358	dREQ;	1754	dREQ;
1359		1755
1360	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1756	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1363		1759
1364	REQ_SEND;	1760	REQ_SEND;
1365	}	1761	}
1366		1762
1367	void	1763	void
1368	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1764	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1369	PPCODE:	1765	PPCODE:
1370	{	1766	{
1371	dREQ;	1767	dREQ;
1372		1768
1373	req->type = EIO_READDIR;	1769	req->type = EIO_READDIR;
…		…
1380		1776
1381	REQ_SEND;	1777	REQ_SEND;
1382	}	1778	}
1383		1779
1384	void	1780	void
1385	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1781	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1386	PPCODE:	1782	PPCODE:
1387	{	1783	{
1388	dREQ;	1784	dREQ;
1389		1785
1390	req->type = EIO_MKDIR;	1786	req->type = EIO_MKDIR;
…		…
1393		1789
1394	REQ_SEND;	1790	REQ_SEND;
1395	}	1791	}
1396		1792
1397	void	1793	void
1398	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1794	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1399	ALIAS:	1795	ALIAS:
1400	aio_unlink = EIO_UNLINK	1796	aio_unlink = EIO_UNLINK
1401	aio_rmdir = EIO_RMDIR	1797	aio_rmdir = EIO_RMDIR
1402	aio_readdir = EIO_READDIR	1798	aio_readdir = EIO_READDIR
1403	PPCODE:	1799	PPCODE:
…		…
1409		1805
1410	REQ_SEND;	1806	REQ_SEND;
1411	}	1807	}
1412		1808
1413	void	1809	void
1414	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1810	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1415	ALIAS:	1811	ALIAS:
1416	aio_link = EIO_LINK	1812	aio_link = EIO_LINK
1417	aio_symlink = EIO_SYMLINK	1813	aio_symlink = EIO_SYMLINK
1418	aio_rename = EIO_RENAME	1814	aio_rename = EIO_RENAME
1419	PPCODE:	1815	PPCODE:
…		…
1428		1824
1429	REQ_SEND;	1825	REQ_SEND;
1430	}	1826	}
1431		1827
1432	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
1433	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)
1434	PPCODE:	1846	PPCODE:
1435	{	1847	{
1436	dREQ;	1848	dREQ;
1437		1849
1438	req->type = EIO_MKNOD;	1850	req->type = EIO_MKNOD;
…		…
1442		1854
1443	REQ_SEND;	1855	REQ_SEND;
1444	}	1856	}
1445		1857
1446	void	1858	void
1447	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)
1448	ALIAS:	1860	ALIAS:
1449	aio_mtouch = EIO_MTOUCH	1861	aio_mtouch = EIO_MTOUCH
1450	aio_msync = EIO_MSYNC	1862	aio_msync = EIO_MSYNC
1451	PPCODE:	1863	PPCODE:
1452	{	1864	{
1453	STRLEN svlen;	1865	STRLEN svlen;
1454	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1455	UV len = SvUV (length);	1867	UV len = SvUV (length);
		1868
		1869	if (flags < 0)
		1870	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1456		1871
1457	if (offset < 0)	1872	if (offset < 0)
1458	offset += svlen;	1873	offset += svlen;
1459		1874
1460	if (offset < 0 || offset > svlen)	1875	if (offset < 0 || offset > svlen)
…		…
1475	REQ_SEND;	1890	REQ_SEND;
1476	}	1891	}
1477	}	1892	}
1478		1893
1479	void	1894	void
1480	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)
1481	PPCODE:	1896	PPCODE:
1482	{	1897	{
1483	STRLEN svlen;	1898	STRLEN svlen;
1484	char *svptr = SvPVbyte (data, svlen);	1899	char *svptr = SvPVbyte (data, svlen);
1485	UV len = SvUV (length);	1900	UV len = SvUV (length);
…		…
1504	REQ_SEND;	1919	REQ_SEND;
1505	}	1920	}
1506	}	1921	}
1507		1922
1508	void	1923	void
1509	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1924	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1510	PPCODE:	1925	PPCODE:
1511	{	1926	{
1512	dREQ;	1927	dREQ;
1513		1928
1514	req->type = EIO_MLOCKALL;	1929	req->type = EIO_MLOCKALL;
…		…
1516		1931
1517	REQ_SEND;	1932	REQ_SEND;
1518	}	1933	}
1519		1934
1520	void	1935	void
1521	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)
1522	PPCODE:	1937	PPCODE:
1523	{	1938	{
1524	int fd = s_fileno_croak (fh, 0);	1939	int fd = s_fileno_croak (fh, 0);
1525	dREQ;	1940	dREQ;
1526		1941
1527	req->type = EIO_CUSTOM;	1942	req->type = EIO_CUSTOM;
1528	req->sv1 = newSVsv (fh);	1943	req->sv1 = newSVsv (fh);
1529	req->int1 = fd;	1944	req->int1 = fd;
…		…
1539		1954
1540	REQ_SEND;	1955	REQ_SEND;
1541	}	1956	}
1542		1957
1543	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
1544	aio_busy (double delay, SV *callback=&PL_sv_undef)	1997	aio_busy (double delay, SV *callback = &PL_sv_undef)
1545	PPCODE:	1998	PPCODE:
1546	{	1999	{
1547	dREQ;	2000	dREQ;
1548		2001
1549	req->type = EIO_BUSY;	2002	req->type = EIO_BUSY;
…		…
1551		2004
1552	REQ_SEND;	2005	REQ_SEND;
1553	}	2006	}
1554		2007
1555	void	2008	void
1556	aio_group (SV *callback=&PL_sv_undef)	2009	aio_group (SV *callback = &PL_sv_undef)
1557	PPCODE:	2010	PPCODE:
1558	{	2011	{
1559	dREQ;	2012	dREQ;
1560		2013
1561	req->type = EIO_GROUP;	2014	req->type = EIO_GROUP;
1562		2015
		2016	PUTBACK;
1563	req_submit (req);	2017	req_submit (req);
		2018	SPAGAIN;
		2019
1564	XPUSHs (req_sv (req, aio_grp_stash));	2020	XPUSHs (req_sv (req, aio_grp_stash));
1565	}	2021	}
1566		2022
1567	void	2023	void
1568	aio_nop (SV *callback=&PL_sv_undef)	2024	aio_nop (SV *callback = &PL_sv_undef)
1569	ALIAS:	2025	ALIAS:
1570	aio_nop = EIO_NOP	2026	aio_nop = EIO_NOP
1571	aio_sync = EIO_SYNC	2027	aio_sync = EIO_SYNC
1572	PPCODE:	2028	PPCODE:
1573	{	2029	{
…		…
1577		2033
1578	REQ_SEND;	2034	REQ_SEND;
1579	}	2035	}
1580		2036
1581	int	2037	int
1582	aioreq_pri (int pri = 0)	2038	aioreq_pri (int pri = NO_INIT)
1583	CODE:	2039	CODE:
1584	RETVAL = next_pri;	2040	RETVAL = next_pri;
1585	if (items > 0)	2041	if (items > 0)
1586	{	2042	{
1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2043	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2133	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678	OUTPUT:	2134	OUTPUT:
1679	RETVAL	2135	RETVAL
1680		2136
1681	void	2137	void
1682	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)
1683	PPCODE:	2139	PPCODE:
1684	sv_unmagic (scalar, MMAP_MAGIC);	2140	sv_clear_foreign (scalar);
1685	{	2141	{
1686	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;
1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2143	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688	if (addr == (void *)-1)	2144	if (addr == (void *)-1)
1689	XSRETURN_NO;	2145	XSRETURN_NO;
1690		2146
1691	sv_force_normal (scalar);	2147	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1692
1693	/* we store the length in mg_obj, as namlen is I32 :/ */
1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695	->mg_obj = (SV *)length;
1696
1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
1698		2148
1699	if (!(prot & PROT_WRITE))	2149	if (!(prot & PROT_WRITE))
1700	SvREADONLY_on (scalar);	2150	SvREADONLY_on (scalar);
1701		2151
1702	if (SvLEN (scalar))
1703	Safefree (SvPVX (scalar));
1704
1705	SvPVX (scalar) = (char *)addr;
1706	SvCUR_set (scalar, length);
1707	SvLEN_set (scalar, 0);
1708	SvPOK_only (scalar);
1709
1710	XSRETURN_YES;	2152	XSRETURN_YES;
1711	}	2153	}
1712		2154
1713	void	2155	void
1714	munmap (SV *scalar)	2156	munmap (SV *scalar)
1715	CODE:	2157	CODE:
1716	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
1717		2189
1718	int	2190	int
1719	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)
1720	ALIAS:	2192	ALIAS:
1721	mprotect = 1	2193	mprotect = 1
1722	CODE:	2194	CODE:
1723	{	2195	{
1724	STRLEN svlen;	2196	STRLEN svlen;
1725	void *addr = SvPVbyte (scalar, svlen);	2197	void *addr = SvPVbyte (scalar, svlen);
1726	size_t len = SvUV (length);	2198	STRLEN len = SvUV (length);
1727		2199
1728	if (offset < 0)	2200	if (offset < 0)
1729	offset += svlen;	2201	offset += svlen;
1730		2202
1731	if (offset < 0 || offset > svlen)	2203	if (offset < 0 || offset > svlen)
…		…
1745	}	2217	}
1746	OUTPUT:	2218	OUTPUT:
1747	RETVAL	2219	RETVAL
1748		2220
1749	int	2221	int
1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2222	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1751	CODE:	2223	CODE:
1752	{	2224	{
1753	STRLEN svlen;	2225	STRLEN svlen;
1754	void *addr = SvPVbyte (scalar, svlen);	2226	void *addr = SvPVbyte (scalar, svlen);
1755	size_t len = SvUV (length);	2227	size_t len = SvUV (length);
1756		2228
1757	if (offset < 0)	2229	if (offset < 0)
1758	offset += svlen;	2230	offset += svlen;
1759		2231
…		…
1766	addr = (void *)(((intptr_t)addr) + offset);	2238	addr = (void *)(((intptr_t)addr) + offset);
1767	eio_page_align (&addr, &len);	2239	eio_page_align (&addr, &len);
1768	#if _POSIX_MEMLOCK_RANGE	2240	#if _POSIX_MEMLOCK_RANGE
1769	RETVAL = munlock (addr, len);	2241	RETVAL = munlock (addr, len);
1770	#else	2242	#else
1771	RETVAL = ((errno = ENOSYS), -1);	2243	RETVAL = EIO_ENOSYS ();
1772	#endif	2244	#endif
1773	}	2245	}
1774	OUTPUT:	2246	OUTPUT:
1775	RETVAL	2247	RETVAL
1776		2248
…		…
1778	munlockall ()	2250	munlockall ()
1779	CODE:	2251	CODE:
1780	#if _POSIX_MEMLOCK	2252	#if _POSIX_MEMLOCK
1781	munlockall ();	2253	munlockall ();
1782	#else	2254	#else
1783	RETVAL = -1;	2255	RETVAL = EIO_ENOSYS ();
1784	errno = ENOSYS;
1785	#endif	2256	#endif
1786	OUTPUT:	2257	OUTPUT:
1787	RETVAL	2258	RETVAL
		2259
		2260	int
		2261	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2262	CODE:
		2263	{
		2264	#if HAVE_LINUX_SPLICE
		2265	loff_t off_in_, off_out_;
		2266	RETVAL = splice (
		2267	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2268	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2269	length, flags
		2270	);
		2271	#else
		2272	RETVAL = EIO_ENOSYS ();
		2273	#endif
		2274	}
		2275	OUTPUT:
		2276	RETVAL
		2277
		2278	int
		2279	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2280	CODE:
		2281	#if HAVE_LINUX_SPLICE
		2282	RETVAL = tee (rfh, wfh, length, flags);
		2283	#else
		2284	RETVAL = EIO_ENOSYS ();
		2285	#endif
		2286	OUTPUT:
		2287	RETVAL
		2288
		2289	int
		2290	pipesize (aio_rfd rfh, int new_size = -1)
		2291	PROTOTYPE: $;$
		2292	CODE:
		2293	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2294	if (new_size >= 0)
		2295	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2296	else
		2297	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2298	#else
		2299	errno = ENOSYS;
		2300	RETVAL = -1;
		2301	#endif
		2302	OUTPUT:
		2303	RETVAL
		2304
		2305	void
		2306	pipe2 (int flags = 0)
		2307	PROTOTYPE: ;$
		2308	PPCODE:
		2309	{
		2310	int fd[2];
		2311	int res;
		2312
		2313	if (flags)
		2314	#if HAVE_PIPE2
		2315	res = pipe2 (fd, flags);
		2316	#else
		2317	res = (errno = ENOSYS, -1);
		2318	#endif
		2319	else
		2320	res = pipe (fd);
		2321
		2322	if (!res)
		2323	{
		2324	EXTEND (SP, 2);
		2325	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2326	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2327	}
		2328	}
		2329
		2330	void
		2331	eventfd (unsigned int initval = 0, int flags = 0)
		2332	PPCODE:
		2333	{
		2334	int fd;
		2335	#if HAVE_EVENTFD
		2336	fd = eventfd (initval, flags);
		2337	#else
		2338	fd = (errno = ENOSYS, -1);
		2339	#endif
		2340
		2341	XPUSHs (newmortalFH (fd, O_RDWR));
		2342	}
		2343
		2344	void
		2345	timerfd_create (int clockid, int flags = 0)
		2346	PPCODE:
		2347	{
		2348	int fd;
		2349	#if HAVE_TIMERFD
		2350	fd = timerfd_create (clockid, flags);
		2351	#else
		2352	fd = (errno = ENOSYS, -1);
		2353	#endif
		2354
		2355	XPUSHs (newmortalFH (fd, O_RDWR));
		2356	}
		2357
		2358	void
		2359	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2360	PPCODE:
		2361	{
		2362	int fd = s_fileno_croak (fh, 0);
		2363	#if HAVE_TIMERFD
		2364	int res;
		2365	struct itimerspec its, ots;
		2366
		2367	ts_set (&its.it_interval, interval);
		2368	ts_set (&its.it_value , value);
		2369	res = timerfd_settime (fd, flags, &its, &ots);
		2370
		2371	if (!res)
		2372	{
		2373	EXTEND (SP, 2);
		2374	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2375	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2376	}
		2377	#else
		2378	errno = ENOSYS;
		2379	#endif
		2380	}
		2381
		2382	void
		2383	timerfd_gettime (SV *fh)
		2384	PPCODE:
		2385	{
		2386	int fd = s_fileno_croak (fh, 0);
		2387	#if HAVE_TIMERFD
		2388	int res;
		2389	struct itimerspec ots;
		2390	res = timerfd_gettime (fd, &ots);
		2391
		2392	if (!res)
		2393	{
		2394	EXTEND (SP, 2);
		2395	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2396	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2397	}
		2398	#else
		2399	errno = ENOSYS;
		2400	#endif
		2401	}
		2402
		2403	UV
		2404	get_fdlimit ()
		2405	CODE:
		2406	#if HAVE_RLIMITS
		2407	struct rlimit rl;
		2408	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2409	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2410	#endif
		2411	XSRETURN_UNDEF;
		2412	OUTPUT:
		2413	RETVAL
		2414
		2415	void
		2416	min_fdlimit (UV limit = 0x7fffffffU)
		2417	CODE:
		2418	{
		2419	#if HAVE_RLIMITS
		2420	struct rlimit rl;
		2421	rlim_t orig_rlim_max;
		2422	UV bit;
		2423
		2424	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2425	goto fail;
		2426
		2427	if (rl.rlim_cur == RLIM_INFINITY)
		2428	XSRETURN_YES;
		2429
		2430	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2431
		2432	if (rl.rlim_cur < limit)
		2433	{
		2434	rl.rlim_cur = limit;
		2435
		2436	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2437	rl.rlim_max = rl.rlim_cur;
		2438	}
		2439
		2440	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2441	XSRETURN_YES;
		2442
		2443	if (errno == EPERM)
		2444	{
		2445	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2446	/* our limit overflows a system-wide limit */
		2447	/* try an adaptive algorithm, but do not lower the hardlimit */
		2448	rl.rlim_max = 0;
		2449	for (bit = 0x40000000U; bit; bit >>= 1)
		2450	{
		2451	rl.rlim_max |= bit;
		2452	rl.rlim_cur = rl.rlim_max;
		2453
		2454	/* nevr decrease the hard limit */
		2455	if (rl.rlim_max < orig_rlim_max)
		2456	break;
		2457
		2458	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2459	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2460	}
		2461
		2462	/* now, raise the soft limit to the max permitted */
		2463	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2464	{
		2465	rl.rlim_cur = rl.rlim_max;
		2466	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2467	errno = EPERM;
		2468	}
		2469	}
		2470	#endif
		2471	fail:
		2472	XSRETURN_UNDEF;
		2473	}
1788		2474
1789	void _on_next_submit (SV *cb)	2475	void _on_next_submit (SV *cb)
1790	CODE:	2476	CODE:
1791	SvREFCNT_dec (on_next_submit);	2477	SvREFCNT_dec (on_next_submit);
1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2478	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1827	cancel (aio_req_ornot req)	2513	cancel (aio_req_ornot req)
1828	CODE:	2514	CODE:
1829	eio_cancel (req);	2515	eio_cancel (req);
1830		2516
1831	void	2517	void
1832	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2518	cb (aio_req_ornot req, SV *callback = NO_INIT)
1833	PPCODE:	2519	PPCODE:
1834	{	2520	{
1835	if (GIMME_V != G_VOID)	2521	if (GIMME_V != G_VOID)
1836	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2522	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837		2523
1838	if (items > 1)	2524	if (items > 1)
1839	{	2525	{
1840	SV *cb_cv =get_cb (callback);	2526	SV *cb_cv = get_cb (callback);
1841		2527
1842	SvREFCNT_dec (req->callback);	2528	SvREFCNT_dec (req->callback);
1843	req->callback = SvREFCNT_inc (cb_cv);	2529	req->callback = SvREFCNT_inc (cb_cv);
1844	}	2530	}
1845	}	2531	}
…		…
1902	limit (aio_req grp, int limit)	2588	limit (aio_req grp, int limit)
1903	CODE:	2589	CODE:
1904	eio_grp_limit (grp, limit);	2590	eio_grp_limit (grp, limit);
1905		2591
1906	void	2592	void
1907	feed (aio_req grp, SV *callback=&PL_sv_undef)	2593	feed (aio_req grp, SV *callback = &PL_sv_undef)
1908	CODE:	2594	CODE:
1909	{	2595	{
1910	SvREFCNT_dec (grp->sv2);	2596	SvREFCNT_dec (grp->sv2);
1911	grp->sv2 = newSVsv (callback);	2597	grp->sv2 = newSVsv (callback);
1912	grp->feed = aio_grp_feed;	2598	grp->feed = aio_grp_feed;

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