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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.221 by root, Wed Aug 22 22:28:03 2012 UTC vs.
Revision 1.273 by root, Mon Mar 4 10:28:38 2019 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	24	/* the incompetent fool that created musl keeps __linux__, refuses
21	# include <sys/mman.h>	25	* to implement any linux standard apis, and also has no way to test
22	#endif	26	* for his broken iplementation. don't complain to me if this fails
23		27	* for you.
24	#if __linux__	28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
25	# include <linux/fs.h>	30	# include <linux/fs.h>
26	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
27	# include <linux/types.h>	32	# include <linux/types.h>
28	# include <linux/fiemap.h>	33	# include <linux/fiemap.h>
29	# define HAVE_FIEMAP 1	34	# define HAVE_FIEMAP 1
…		…
70	#undef fchmod	75	#undef fchmod
71	#undef dup	76	#undef dup
72	#undef dup2	77	#undef dup2
73	#undef abort	78	#undef abort
74	#undef pipe	79	#undef pipe
		80	#undef utime
75		81
76	#define EIO_STRUCT_STAT struct _stati64	82	#define EIO_STRUCT_STAT struct _stati64
77	#define EIO_STRUCT_STATI64	83	#define EIO_STRUCT_STATI64
78		84
79	#else	85	#else
…		…
98		104
99	#define expect_false(expr) expect ((expr) != 0, 0)	105	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	106	#define expect_true(expr) expect ((expr) != 0, 1)
101		107
102	/*****************************************************************************/	108	/*****************************************************************************/
		109
		110	#include "config.h"
		111
		112	#if HAVE_SYS_MKDEV_H
		113	# include <sys/mkdev.h>
		114	#elif HAVE_SYS_SYSMACROS_H
		115	# include <sys/sysmacros.h>
		116	#endif
		117
		118	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		119	# include <sys/mman.h>
		120	#endif
		121
		122	#if HAVE_ST_XTIMENSEC
		123	# define ATIMENSEC PL_statcache.st_atimensec
		124	# define MTIMENSEC PL_statcache.st_mtimensec
		125	# define CTIMENSEC PL_statcache.st_ctimensec
		126	#elif HAVE_ST_XTIMESPEC
		127	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		128	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		129	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		130	#else
		131	# define ATIMENSEC 0
		132	# define MTIMENSEC 0
		133	# define CTIMENSEC 0
		134	#endif
		135
		136	#if HAVE_ST_BIRTHTIMENSEC
		137	# define BTIMESEC PL_statcache.st_birthtime
		138	# define BTIMENSEC PL_statcache.st_birthtimensec
		139	#elif HAVE_ST_BIRTHTIMESPEC
		140	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		141	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		142	#else
		143	# define BTIMESEC 0
		144	# define BTIMENSEC 0
		145	#endif
		146
		147	#if HAVE_ST_GEN
		148	# define ST_GEN PL_statcache.st_gen
		149	#else
		150	# define ST_GEN 0
		151	#endif
		152
		153	#include "schmorp.h"
		154
		155	#if HAVE_EVENTFD
		156	# include <sys/eventfd.h>
		157	#endif
		158
		159	#if HAVE_TIMERFD
		160	# include <sys/timerfd.h>
		161	#endif
		162
		163	#if HAVE_RLIMITS
		164	#include <sys/time.h>
		165	#include <sys/resource.h>
		166	#endif
103		167
104	typedef SV SV8; /* byte-sv, used for argument-checking */	168	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	169	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	170	typedef int aio_wfd; /* write file descriptor */
107		171
…		…
114	STRLEN stroffset; \	178	STRLEN stroffset; \
115	SV *self;	179	SV *self;
116		180
117	#define EIO_NO_WRAPPERS 1	181	#define EIO_NO_WRAPPERS 1
118		182
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	183	#include "libeio/eio.h"
121		184
122	static int req_invoke (eio_req *req);	185	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	186	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	187	static void req_destroy (eio_req *grp);
…		…
140	# else	203	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	205	# endif
143	#endif	206	#endif
144		207
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	208	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	209	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	210	#endif
151	#ifndef major	211	#ifndef major
152	# define major(dev) ((dev) >> 8)	212	# define major(dev) ((dev) >> 8)
153	#endif	213	#endif
154	#ifndef minor	214	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	215	# define minor(dev) ((dev) & 0xff)
156	#endif	216	#endif
157		217
		218	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		219	#ifdef __sun
158	#ifndef PAGESIZE	220	# undef PAGESIZE
		221	#endif
		222
		223	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	224	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	225	#endif
		226
		227	/*****************************************************************************/
		228
		229	#if !_POSIX_MAPPED_FILES
		230	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		231	# define munmap(addr,length) EIO_ENOSYS ()
		232	#endif
		233
		234	#if !_POSIX_MEMORY_PROTECTION
		235	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !MREMAP_MAYMOVE
		239	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		240	#endif
		241
		242	#define FOREIGN_MAGIC PERL_MAGIC_ext
		243
		244	static int ecb_cold
		245	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		246	{
		247	int old_errno = errno;
		248	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		249	errno = old_errno;
		250
		251	mg->mg_obj = 0; /* just in case */
		252
		253	SvREADONLY_off (sv);
		254
		255	if (SvPVX (sv) != mg->mg_ptr)
		256	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		257
		258	SvCUR_set (sv, 0);
		259	SvPVX (sv) = 0;
		260	SvOK_off (sv);
		261
		262	return 0;
		263	}
		264
		265	static MGVTBL mmap_vtbl = {
		266	0, 0, 0, 0, mmap_free
		267	};
		268
		269	static int ecb_cold
		270	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		271	{
		272	free (mg->mg_ptr);
		273	mg->mg_obj = 0; /* just in case */
		274
		275	SvREADONLY_off (sv);
		276
		277	if (SvPVX (sv) != mg->mg_ptr)
		278	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		279
		280	SvCUR_set (sv, 0);
		281	SvPVX (sv) = 0;
		282	SvOK_off (sv);
		283
		284	return 0;
		285	}
		286
		287	static MGVTBL sysfree_vtbl = {
		288	0, 0, 0, 0, sysfree_free
		289	};
		290
		291	/*****************************************************************************/
		292
		293	/* helper: set scalar to foreign ptr with custom free */
		294	static void
		295	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		296	{
		297	sv_force_normal (sv);
		298
		299	/* we store the length in mg_obj, as namlen is I32 :/ */
		300	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		301	->mg_obj = (SV *)length;
		302
		303	SvUPGRADE (sv, SVt_PV); /* nop... */
		304
		305	if (SvLEN (sv))
		306	Safefree (SvPVX (sv));
		307
		308	SvPVX (sv) = (char *)addr;
		309	SvCUR_set (sv, length);
		310	SvLEN_set (sv, 0);
		311	SvPOK_only (sv);
		312	}
		313
		314	static void
		315	sv_clear_foreign (SV *sv)
		316	{
		317	/* todo: iterate over magic and only free ours, but of course */
		318	/* the perl5porters will call that (correct) behaviour buggy */
		319	sv_unmagic (sv, FOREIGN_MAGIC);
		320	}
		321
		322	/*****************************************************************************/
		323
		324	/* defines all sorts of constants to 0 unless they are already defined */
		325	/* also provides const_iv_ and const_niv_ macros for them */
		326	#include "def0.h"
161		327
162	/*****************************************************************************/	328	/*****************************************************************************/
163		329
164	static void	330	static void
165	fiemap (eio_req *req)	331	fiemap (eio_req *req)
…		…
189	fiemap->fm_start = req->offs;	355	fiemap->fm_start = req->offs;
190	fiemap->fm_length = req->size;	356	fiemap->fm_length = req->size;
191	fiemap->fm_flags = req->int2;	357	fiemap->fm_flags = req->int2;
192	fiemap->fm_extent_count = count;	358	fiemap->fm_extent_count = count;
193		359
194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))	360	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
195	return;	361	return;
196		362
197	if (req->int3 >= 0 /* not autosizing */	363	if (req->int3 >= 0 /* not autosizing */
198	|| !fiemap->fm_mapped_extents /* no more extents */	364	|| !fiemap->fm_mapped_extents /* no more extents */
199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)	365	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200	goto done;	366	goto done;
201		367
202	/* else we have to loop -	368	/* else we have to loop -
203	* it would be tempting (atcually I tried that first) to just query the	369	* it would be tempting (actually I tried that first) to just query the
204	* number of extents needed, but linux often feels like not returning all	370	* number of extents needed, but linux often feels like not returning all
205	* extents, without telling us it left any out. this complicates	371	* extents, without telling us it left any out. this complicates
206	* this quite a bit.	372	* this quite a bit.
207	*/	373	*/
208		374
…		…
218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;	384	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);	385	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
220	incmap->fm_flags = fiemap->fm_flags;	386	incmap->fm_flags = fiemap->fm_flags;
221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);	387	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
222		388
223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))	389	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
224	return;	390	return;
		391
		392	if (!incmap->fm_mapped_extents)
		393	goto done;
225		394
226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;	395	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	396	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228	errno = ENOMEM;	397	errno = ENOMEM;
229	if (!fiemap)	398	if (!fiemap)
…		…
254	#endif	423	#endif
255	}	424	}
256		425
257	/*****************************************************************************/	426	/*****************************************************************************/
258		427
		428	static int close_fd; /* dummy fd to close fds via dup2 */
		429
259	enum {	430	enum {
260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	431	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
261	};	432	};
262		433
263	typedef eio_req *aio_req;	434	typedef eio_req *aio_req;
…		…
301	}	472	}
302		473
303	static SV *	474	static SV *
304	newSVaio_wd (aio_wd wd)	475	newSVaio_wd (aio_wd wd)
305	{	476	{
306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	477	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
307	}	478	}
308		479
309	static aio_req	480	static aio_req
310	SvAIO_REQ (SV *sv)	481	SvAIO_REQ (SV *sv)
311	{	482	{
…		…
330	|| SvTYPE (SvRV (sv)) != SVt_PVMG	501	|| SvTYPE (SvRV (sv)) != SVt_PVMG
331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	502	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	503	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333		504
334	return (aio_wd)(long)SvIVX (SvRV (sv));	505	return (aio_wd)(long)SvIVX (SvRV (sv));
		506	}
		507
		508	static SV *
		509	newmortalFH (int fd, int flags)
		510	{
		511	if (fd < 0)
		512	return &PL_sv_undef;
		513
		514	GV *gv = (GV *)sv_newmortal ();
		515	char sym[64];
		516	int symlen;
		517
		518	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		519	gv_init (gv, aio_stash, sym, symlen, 0);
		520
		521	symlen = snprintf (
		522	sym,
		523	sizeof (sym),
		524	"%s&=%d",
		525	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		526	fd
		527	);
		528
		529	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		530	? (SV *)gv : &PL_sv_undef;
335	}	531	}
336		532
337	static void	533	static void
338	aio_grp_feed (aio_req grp)	534	aio_grp_feed (aio_req grp)
339	{	535	{
…		…
467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	663	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
468	}	664	}
469	break;	665	break;
470		666
471	case EIO_OPEN:	667	case EIO_OPEN:
472	{	668	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
473	/* convert fd to fh */
474	SV *fh = &PL_sv_undef;
475
476	if (req->result >= 0)
477	{
478	GV *gv = (GV *)sv_newmortal ();
479	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
480	char sym [64];
481	int symlen;
482
483	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
484	gv_init (gv, aio_stash, sym, symlen, 0);
485
486	symlen = snprintf (
487	sym,
488	sizeof (sym),
489	"%s&=%d",
490	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
491	(int)req->result
492	);
493
494	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
495	fh = (SV *)gv;
496	}
497
498	PUSHs (fh);
499	}
500	break;	669	break;
501		670
502	case EIO_STATVFS:	671	case EIO_STATVFS:
503	case EIO_FSTATVFS:	672	case EIO_FSTATVFS:
504	{	673	{
…		…
507	#ifndef _WIN32	676	#ifndef _WIN32
508	if (req->result >= 0)	677	if (req->result >= 0)
509	{	678	{
510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	679	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
511	HV *hv = newHV ();	680	HV *hv = newHV ();
		681	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		682	* chooses to make it a struct.
		683	*/
		684	unsigned long fsid = 0;
		685	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
512		686
513	rv = sv_2mortal (newRV_noinc ((SV *)hv));	687	rv = sv_2mortal (newRV_noinc ((SV *)hv));
514		688
515	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	689	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
516	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	690	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
518	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	692	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
519	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	693	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
520	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	694	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
521	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	695	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
522	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	696	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
523	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	697	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
524	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	698	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
525	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	699	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
526	}	700	}
527	#endif	701	#endif
528		702
…		…
579	SvSETMAGIC (req->sv2);	753	SvSETMAGIC (req->sv2);
580	PUSHs (sv_result);	754	PUSHs (sv_result);
581	}	755	}
582	break;	756	break;
583		757
		758	case EIO_SLURP:
		759	{
		760	if (req->result >= 0)
		761	{
		762	/* if length was originally not known, we steal the malloc'ed memory */
		763	if (req->flags & EIO_FLAG_PTR2_FREE)
		764	{
		765	req->flags &= ~EIO_FLAG_PTR2_FREE;
		766	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		767	}
		768	else
		769	{
		770	SvCUR_set (req->sv2, req->result);
		771	*SvEND (req->sv2) = 0;
		772	SvPOK_only (req->sv2);
		773	}
		774
		775	SvSETMAGIC (req->sv2);
		776	}
		777
		778	PUSHs (sv_result);
		779	}
		780	break;
		781
584	case EIO_CUSTOM:	782	case EIO_CUSTOM:
585	if (req->feed == fiemap)	783	if (req->feed == fiemap)
586	{	784	{
587	#if HAVE_FIEMAP	785	#if HAVE_FIEMAP
588	if (!req->result)	786	if (!req->result)
…		…
619	}	817	}
620	else	818	else
621	PUSHs (sv_result);	819	PUSHs (sv_result);
622	break;	820	break;
623		821
		822	#if 0
		823	case EIO_CLOSE:
		824	PerlIOUnix_refcnt_dec (req->int1);
		825	break;
		826	#endif
		827
624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	828	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
625	if (req->result > 0)	829	if (req->result > 0)
626	SvIV_set (sv_result, 0);	830	SvIV_set (sv_result, 0);
627	/* FALLTHROUGH */	831	/* FALLTHROUGH */
628		832
…		…
693	{	897	{
694	while (eio_nreqs ())	898	while (eio_nreqs ())
695	{	899	{
696	int size;	900	int size;
697		901
698	X_LOCK (reslock);	902	X_LOCK (EIO_POOL->reslock);
699	size = res_queue.size;	903	size = EIO_POOL->res_queue.size;
700	X_UNLOCK (reslock);	904	X_UNLOCK (EIO_POOL->reslock);
701		905
702	if (size)	906	if (size)
703	return;	907	return;
704		908
705	etp_maybe_start_thread ();	909	etp_maybe_start_thread (EIO_POOL);
706		910
707	s_epipe_wait (&respipe);	911	s_epipe_wait (&respipe);
708	}	912	}
709	}	913	}
710		914
…		…
731	create_respipe ();	935	create_respipe ();
732		936
733	if (eio_init (want_poll, done_poll) < 0)	937	if (eio_init (want_poll, done_poll) < 0)
734	croak ("IO::AIO: unable to initialise eio library");	938	croak ("IO::AIO: unable to initialise eio library");
735	}	939	}
736
737	/*****************************************************************************/
738
739	#if !_POSIX_MAPPED_FILES
740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
741	# define munmap(addr,length) EIO_ENOSYS ()
742	#endif
743
744	#if !_POSIX_MEMORY_PROTECTION
745	# define mprotect(addr,len,prot) EIO_ENOSYS ()
746	# define PROT_NONE 0
747	# define PROT_WRITE 0
748	# define MAP_PRIVATE 0
749	# define MAP_SHARED 0
750	# define MAP_FIXED 0
751	#endif
752
753	#define MMAP_MAGIC PERL_MAGIC_ext
754
755	static int ecb_cold
756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
757	{
758	int old_errno = errno;
759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
760	errno = old_errno;
761
762	mg->mg_obj = 0; /* just in case */
763
764	SvREADONLY_off (sv);
765
766	if (SvPVX (sv) != mg->mg_ptr)
767	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
768
769	SvCUR_set (sv, 0);
770	SvPVX (sv) = 0;
771	SvOK_off (sv);
772
773	return 0;
774	}
775
776	static MGVTBL mmap_vtbl = {
777	0, 0, 0, 0, mmap_free
778	};
779		940
780	/*****************************************************************************/	941	/*****************************************************************************/
781		942
782	static SV *	943	static SV *
783	get_cb (SV *cb_sv)	944	get_cb (SV *cb_sv)
…		…
879	req_set_path1 (req, fh_or_path);	1040	req_set_path1 (req, fh_or_path);
880	break;	1041	break;
881	}	1042	}
882	}	1043	}
883		1044
		1045	/*****************************************************************************/
		1046
		1047	static void
		1048	ts_set (struct timespec *ts, NV value)
		1049	{
		1050	ts->tv_sec = value;
		1051	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1052	}
		1053
		1054	static NV
		1055	ts_get (const struct timespec *ts)
		1056	{
		1057	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1058	}
		1059
		1060	/*****************************************************************************/
		1061
884	XS(boot_IO__AIO) ecb_cold;	1062	XS(boot_IO__AIO) ecb_cold;
885		1063
886	MODULE = IO::AIO PACKAGE = IO::AIO	1064	MODULE = IO::AIO PACKAGE = IO::AIO
887		1065
888	PROTOTYPES: ENABLE	1066	PROTOTYPES: ENABLE
…		…
895	} *civ, const_iv[] = {	1073	} *civ, const_iv[] = {
896	# define const_niv(name, value) { # name, (IV) value },	1074	# define const_niv(name, value) { # name, (IV) value },
897	# define const_iv(name) { # name, (IV) name },	1075	# define const_iv(name) { # name, (IV) name },
898	# define const_eio(name) { # name, (IV) EIO_ ## name },	1076	# define const_eio(name) { # name, (IV) EIO_ ## name },
899		1077
900	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1078	/* you have to re-run ./gendef0 after adding/removing any constants here */
901		1079	/* the first block can be undef if missing */
902	const_iv (ENOSYS)	1080	const_iv (ENOSYS)
903	const_iv (EXDEV)	1081	const_iv (EXDEV)
904	const_iv (EBADR)	1082	const_iv (EBADR)
		1083
		1084	/* for lseek */
		1085	const_iv (SEEK_DATA)
		1086	const_iv (SEEK_HOLE)
		1087
		1088	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1089	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1090	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1091	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1092	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1093	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1094
		1095	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1096	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1097	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1098	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1099	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1100
		1101	/* the second block will be 0 when missing */
		1102	const_iv (O_ACCMODE)
905		1103
906	const_iv (O_RDONLY)	1104	const_iv (O_RDONLY)
907	const_iv (O_WRONLY)	1105	const_iv (O_WRONLY)
908	const_iv (O_RDWR)	1106	const_iv (O_RDWR)
909	const_iv (O_CREAT)	1107	const_iv (O_CREAT)
…		…
923	const_iv (O_SEARCH)	1121	const_iv (O_SEARCH)
924	const_iv (O_DIRECTORY)	1122	const_iv (O_DIRECTORY)
925	const_iv (O_DSYNC)	1123	const_iv (O_DSYNC)
926	const_iv (O_RSYNC)	1124	const_iv (O_RSYNC)
927	const_iv (O_SYNC)	1125	const_iv (O_SYNC)
		1126	const_iv (O_PATH)
		1127	const_iv (O_TMPFILE)
928	const_iv (O_TTY_INIT)	1128	const_iv (O_TTY_INIT)
929		1129
930	const_iv (S_IFIFO)	1130	const_iv (S_IFIFO)
931	const_iv (S_IFCHR)	1131	const_iv (S_IFCHR)
932	const_iv (S_IFBLK)	1132	const_iv (S_IFBLK)
…		…
934	const_iv (S_IFREG)	1134	const_iv (S_IFREG)
935	const_iv (S_IFDIR)	1135	const_iv (S_IFDIR)
936	const_iv (S_IFWHT)	1136	const_iv (S_IFWHT)
937	const_iv (S_IFSOCK)	1137	const_iv (S_IFSOCK)
938	const_iv (S_IFMT)	1138	const_iv (S_IFMT)
939
940	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
941	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
942	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
943	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
944	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
945	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
946
947	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
948	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
949	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
950	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
951	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
952		1139
953	const_iv (ST_RDONLY)	1140	const_iv (ST_RDONLY)
954	const_iv (ST_NOSUID)	1141	const_iv (ST_NOSUID)
955	const_iv (ST_NODEV)	1142	const_iv (ST_NODEV)
956	const_iv (ST_NOEXEC)	1143	const_iv (ST_NOEXEC)
…		…
966	const_iv (PROT_NONE)	1153	const_iv (PROT_NONE)
967	const_iv (PROT_EXEC)	1154	const_iv (PROT_EXEC)
968	const_iv (PROT_READ)	1155	const_iv (PROT_READ)
969	const_iv (PROT_WRITE)	1156	const_iv (PROT_WRITE)
970		1157
971	/*const_iv (MAP_FIXED)*/
972	const_iv (MAP_PRIVATE)	1158	const_iv (MAP_PRIVATE)
973	const_iv (MAP_SHARED)	1159	const_iv (MAP_SHARED)
		1160	const_iv (MAP_FIXED)
974	const_iv (MAP_ANONYMOUS)	1161	const_iv (MAP_ANONYMOUS)
975		1162
976	/* linuxish */	1163	/* linuxish */
977	const_iv (MAP_HUGETLB)
978	const_iv (MAP_LOCKED)	1164	const_iv (MAP_LOCKED)
979	const_iv (MAP_NORESERVE)	1165	const_iv (MAP_NORESERVE)
980	const_iv (MAP_POPULATE)	1166	const_iv (MAP_POPULATE)
981	const_iv (MAP_NONBLOCK)	1167	const_iv (MAP_NONBLOCK)
		1168	const_iv (MAP_GROWSDOWN)
		1169	const_iv (MAP_32BIT)
		1170	const_iv (MAP_HUGETLB)
		1171	const_iv (MAP_STACK)
		1172
		1173	const_iv (MREMAP_MAYMOVE)
		1174	const_iv (MREMAP_FIXED)
		1175
		1176	const_iv (F_DUPFD_CLOEXEC)
		1177
		1178	const_iv (MSG_CMSG_CLOEXEC)
		1179	const_iv (SOCK_CLOEXEC)
		1180
		1181	const_iv (F_OFD_GETLK)
		1182	const_iv (F_OFD_SETLK)
		1183	const_iv (F_OFD_GETLKW)
		1184
		1185	const_iv (FIFREEZE)
		1186	const_iv (FITHAW)
		1187	const_iv (FITRIM)
		1188	const_iv (FICLONE)
		1189	const_iv (FICLONERANGE)
		1190	const_iv (FIDEDUPERANGE)
		1191
		1192	const_iv (FS_IOC_GETFLAGS)
		1193	const_iv (FS_IOC_SETFLAGS)
		1194	const_iv (FS_IOC_GETVERSION)
		1195	const_iv (FS_IOC_SETVERSION)
		1196	const_iv (FS_IOC_FIEMAP)
		1197	const_iv (FS_IOC_FSGETXATTR)
		1198	const_iv (FS_IOC_FSSETXATTR)
		1199	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1200	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1201	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1202
		1203	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1204
		1205	const_iv (FS_SECRM_FL)
		1206	const_iv (FS_UNRM_FL)
		1207	const_iv (FS_COMPR_FL)
		1208	const_iv (FS_SYNC_FL)
		1209	const_iv (FS_IMMUTABLE_FL)
		1210	const_iv (FS_APPEND_FL)
		1211	const_iv (FS_NODUMP_FL)
		1212	const_iv (FS_NOATIME_FL)
		1213	const_iv (FS_DIRTY_FL)
		1214	const_iv (FS_COMPRBLK_FL)
		1215	const_iv (FS_NOCOMP_FL)
		1216	const_iv (FS_ENCRYPT_FL)
		1217	const_iv (FS_BTREE_FL)
		1218	const_iv (FS_INDEX_FL)
		1219	const_iv (FS_JOURNAL_DATA_FL)
		1220	const_iv (FS_NOTAIL_FL)
		1221	const_iv (FS_DIRSYNC_FL)
		1222	const_iv (FS_TOPDIR_FL)
		1223	const_iv (FS_FL_USER_MODIFIABLE)
		1224
		1225	const_iv (FS_XFLAG_REALTIME)
		1226	const_iv (FS_XFLAG_PREALLOC)
		1227	const_iv (FS_XFLAG_IMMUTABLE)
		1228	const_iv (FS_XFLAG_APPEND)
		1229	const_iv (FS_XFLAG_SYNC)
		1230	const_iv (FS_XFLAG_NOATIME)
		1231	const_iv (FS_XFLAG_NODUMP)
		1232	const_iv (FS_XFLAG_RTINHERIT)
		1233	const_iv (FS_XFLAG_PROJINHERIT)
		1234	const_iv (FS_XFLAG_NOSYMLINKS)
		1235	const_iv (FS_XFLAG_EXTSIZE)
		1236	const_iv (FS_XFLAG_EXTSZINHERIT)
		1237	const_iv (FS_XFLAG_NODEFRAG)
		1238	const_iv (FS_XFLAG_FILESTREAM)
		1239	const_iv (FS_XFLAG_DAX)
		1240	const_iv (FS_XFLAG_HASATTR)
982		1241
983	const_iv (FIEMAP_FLAG_SYNC)	1242	const_iv (FIEMAP_FLAG_SYNC)
984	const_iv (FIEMAP_FLAG_XATTR)	1243	const_iv (FIEMAP_FLAG_XATTR)
985	const_iv (FIEMAP_FLAGS_COMPAT)	1244	const_iv (FIEMAP_FLAGS_COMPAT)
986	const_iv (FIEMAP_EXTENT_LAST)	1245	const_iv (FIEMAP_EXTENT_LAST)
…		…
998	const_iv (SPLICE_F_MOVE)	1257	const_iv (SPLICE_F_MOVE)
999	const_iv (SPLICE_F_NONBLOCK)	1258	const_iv (SPLICE_F_NONBLOCK)
1000	const_iv (SPLICE_F_MORE)	1259	const_iv (SPLICE_F_MORE)
1001	const_iv (SPLICE_F_GIFT)	1260	const_iv (SPLICE_F_GIFT)
1002		1261
1003	const_iv (SEEK_DATA)	1262	const_iv (EFD_CLOEXEC)
		1263	const_iv (EFD_NONBLOCK)
1004	const_iv (SEEK_HOLE)	1264	const_iv (EFD_SEMAPHORE)
1005		1265
1006	/* libeio constants */	1266	const_iv (CLOCK_REALTIME)
		1267	const_iv (CLOCK_MONOTONIC)
		1268	const_iv (CLOCK_BOOTTIME)
		1269	const_iv (CLOCK_REALTIME_ALARM)
		1270	const_iv (CLOCK_BOOTTIME_ALARM)
		1271
		1272	const_iv (TFD_NONBLOCK)
		1273	const_iv (TFD_CLOEXEC)
		1274
		1275	const_iv (TFD_TIMER_ABSTIME)
		1276	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1277
		1278	/* these are libeio constants, and are independent of gendef0 */
1007	const_eio (SEEK_SET)	1279	const_eio (SEEK_SET)
1008	const_eio (SEEK_CUR)	1280	const_eio (SEEK_CUR)
1009	const_eio (SEEK_END)	1281	const_eio (SEEK_END)
1010		1282
1011	const_eio (MCL_FUTURE)	1283	const_eio (MCL_FUTURE)
1012	const_eio (MCL_CURRENT)	1284	const_eio (MCL_CURRENT)
		1285	const_eio (MCL_ONFAULT)
1013		1286
1014	const_eio (MS_ASYNC)	1287	const_eio (MS_ASYNC)
1015	const_eio (MS_INVALIDATE)	1288	const_eio (MS_INVALIDATE)
1016	const_eio (MS_SYNC)	1289	const_eio (MS_SYNC)
1017		1290
…		…
1021	const_eio (SYNC_FILE_RANGE_WRITE)	1294	const_eio (SYNC_FILE_RANGE_WRITE)
1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1295	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1023		1296
1024	const_eio (FALLOC_FL_KEEP_SIZE)	1297	const_eio (FALLOC_FL_KEEP_SIZE)
1025	const_eio (FALLOC_FL_PUNCH_HOLE)	1298	const_eio (FALLOC_FL_PUNCH_HOLE)
		1299	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1300	const_eio (FALLOC_FL_ZERO_RANGE)
		1301	const_eio (FALLOC_FL_INSERT_RANGE)
		1302	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1303
		1304	const_eio (RENAME_NOREPLACE)
		1305	const_eio (RENAME_EXCHANGE)
		1306	const_eio (RENAME_WHITEOUT)
1026		1307
1027	const_eio (READDIR_DENTS)	1308	const_eio (READDIR_DENTS)
1028	const_eio (READDIR_DIRS_FIRST)	1309	const_eio (READDIR_DIRS_FIRST)
1029	const_eio (READDIR_STAT_ORDER)	1310	const_eio (READDIR_STAT_ORDER)
1030	const_eio (READDIR_FOUND_UNKNOWN)	1311	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1329	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1330	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1050		1331
1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1332	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1052		1333
		1334	/* allocate dummy pipe fd for aio_close */
		1335	{
		1336	int pipefd [2];
		1337
		1338	if (
		1339	#ifdef _WIN32
		1340	_pipe (pipefd, 1, _O_BINARY) < 0
		1341	#else
		1342	pipe (pipefd) < 0
		1343	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1344	#endif
		1345	|| close (pipefd [1]) < 0
		1346	)
		1347	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1348
		1349	close_fd = pipefd [0];
		1350	}
		1351
1053	reinit ();	1352	reinit ();
1054	}	1353	}
1055		1354
1056	void	1355	void
1057	reinit ()	1356	reinit ()
…		…
1098	PROTOTYPE: $	1397	PROTOTYPE: $
1099	CODE:	1398	CODE:
1100	max_outstanding = maxreqs;	1399	max_outstanding = maxreqs;
1101		1400
1102	void	1401	void
1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1402	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1104	PPCODE:	1403	PPCODE:
1105	{	1404	{
1106	dREQ;	1405	dREQ;
1107		1406
1108	req->type = EIO_WD_OPEN;	1407	req->type = EIO_WD_OPEN;
…		…
1110		1409
1111	REQ_SEND;	1410	REQ_SEND;
1112	}	1411	}
1113		1412
1114	void	1413	void
1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1414	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1116	PPCODE:	1415	PPCODE:
1117	{	1416	{
1118	dREQ;	1417	dREQ;
1119		1418
1120	req->type = EIO_OPEN;	1419	req->type = EIO_OPEN;
…		…
1124		1423
1125	REQ_SEND;	1424	REQ_SEND;
1126	}	1425	}
1127		1426
1128	void	1427	void
1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1428	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1130	ALIAS:	1429	ALIAS:
1131	aio_fsync = EIO_FSYNC	1430	aio_fsync = EIO_FSYNC
1132	aio_fdatasync = EIO_FDATASYNC	1431	aio_fdatasync = EIO_FDATASYNC
1133	aio_syncfs = EIO_SYNCFS	1432	aio_syncfs = EIO_SYNCFS
1134	PPCODE:	1433	PPCODE:
…		…
1142		1441
1143	REQ_SEND;	1442	REQ_SEND;
1144	}	1443	}
1145		1444
1146	void	1445	void
1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1446	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1148	PPCODE:	1447	PPCODE:
1149	{	1448	{
1150	int fd = s_fileno_croak (fh, 0);	1449	int fd = s_fileno_croak (fh, 0);
1151	dREQ;	1450	dREQ;
1152		1451
…		…
1159		1458
1160	REQ_SEND;	1459	REQ_SEND;
1161	}	1460	}
1162		1461
1163	void	1462	void
1164	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1463	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1165	PPCODE:	1464	PPCODE:
1166	{	1465	{
1167	int fd = s_fileno_croak (fh, 0);	1466	int fd = s_fileno_croak (fh, 0);
1168	dREQ;	1467	dREQ;
1169		1468
…		…
1176		1475
1177	REQ_SEND;	1476	REQ_SEND;
1178	}	1477	}
1179		1478
1180	void	1479	void
1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1480	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1182	PPCODE:	1481	PPCODE:
1183	{	1482	{
1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1185	int fd = s_fileno_croak (fh, 0);	1483	int fd = s_fileno_croak (fh, 0);
1186	dREQ;	1484	dREQ;
		1485	#if 0
		1486	/* partially duplicate logic in s_fileno */
		1487	SvGETMAGIC (fh);
1187		1488
1188	if (expect_false (close_fd < 0))	1489	if (SvROK (fh))
		1490	{
		1491	fh = SvRV (fh);
		1492	SvGETMAGIC (fh);
		1493	}
		1494
		1495	if (SvTYPE (fh) == SVt_PVGV)
1189	{	1496	{
1190	int pipefd [2];	1497	/* perl filehandle */
		1498	PerlIOUnix_refcnt_inc (fd);
		1499	do_close ((GV *)fh, 1);
1191		1500
1192	if (	1501	req->type = EIO_CLOSE;
1193	#ifdef _WIN32	1502	req->int1 = fd;
1194	_pipe (pipefd, 1, _O_BINARY) < 0	1503	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1195	#else
1196	pipe (pipefd) < 0
1197	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1198	#endif
1199	|| close (pipefd [1]) < 0
1200	)
1201	abort (); /*D*/
1202
1203	close_fd = pipefd [0];
1204	}	1504	}
1205		1505	else
		1506	#endif
		1507	{
		1508	/* fd number */
1206	req->type = EIO_DUP2;	1509	req->type = EIO_DUP2;
1207	req->int1 = close_fd;	1510	req->int1 = close_fd;
1208	req->sv2 = newSVsv (fh);	1511	req->sv2 = newSVsv (fh);
1209	req->int2 = fd;	1512	req->int2 = fd;
		1513	}
1210		1514
1211	REQ_SEND;	1515	REQ_SEND;
1212	}	1516	}
1213		1517
1214	void	1518	void
1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1519	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1216	PPCODE:	1520	PPCODE:
1217	{	1521	{
1218	int fd = s_fileno_croak (fh, 0);	1522	int fd = s_fileno_croak (fh, 0);
1219	dREQ;	1523	dREQ;
1220		1524
…		…
1226		1530
1227	REQ_SEND;	1531	REQ_SEND;
1228	}	1532	}
1229		1533
1230	void	1534	void
1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1535	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1232	ALIAS:	1536	ALIAS:
1233	aio_read = EIO_READ	1537	aio_read = EIO_READ
1234	aio_write = EIO_WRITE	1538	aio_write = EIO_WRITE
1235	PPCODE:	1539	PPCODE:
1236	{	1540	{
…		…
1252	len = svlen - dataoffset;	1556	len = svlen - dataoffset;
1253	}	1557	}
1254	else	1558	else
1255	{	1559	{
1256	/* read: check type and grow scalar as necessary */	1560	/* read: check type and grow scalar as necessary */
1257	SvUPGRADE (data, SVt_PV);
1258	if (SvLEN (data) >= SvCUR (data))	1561	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1259	svptr = SvGROW (data, len + dataoffset + 1);	1562	svptr = sv_grow (data, len + dataoffset + 1);
1260	else if (SvCUR (data) < len + dataoffset)	1563	else if (SvCUR (data) < len + dataoffset)
1261	croak ("length + dataoffset outside of scalar, and cannot grow");	1564	croak ("length + dataoffset outside of scalar, and cannot grow");
1262	}	1565	}
1263		1566
1264	{	1567	{
…		…
1282	REQ_SEND;	1585	REQ_SEND;
1283	}	1586	}
1284	}	1587	}
1285		1588
1286	void	1589	void
		1590	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1591	ALIAS:
		1592	aio_ioctl = EIO_IOCTL
		1593	aio_fcntl = EIO_FCNTL
		1594	PPCODE:
		1595	{
		1596	int fd = s_fileno_croak (fh, 0);
		1597	char *svptr;
		1598
		1599	if (SvPOK (arg) || !SvNIOK (arg))
		1600	{
		1601	STRLEN svlen;
		1602	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1603	#ifdef IOCPARM_LEN
		1604	STRLEN need = IOCPARM_LEN (request);
		1605	#else
		1606	STRLEN need = 256;
		1607	#endif
		1608
		1609	if (svlen < need)
		1610	svptr = SvGROW (arg, need);
		1611	}
		1612	else
		1613	svptr = (char *)SvIV (arg);
		1614
		1615	{
		1616	dREQ;
		1617
		1618	req->type = ix;
		1619	req->sv1 = newSVsv (fh);
		1620	req->int1 = fd;
		1621	req->int2 = (long)request;
		1622	req->sv2 = SvREFCNT_inc (arg);
		1623	req->ptr2 = svptr;
		1624
		1625	REQ_SEND;
		1626	}
		1627	}
		1628
		1629	void
1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1630	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1288	ALIAS:	1631	ALIAS:
1289	aio_readlink = EIO_READLINK	1632	aio_readlink = EIO_READLINK
1290	aio_realpath = EIO_REALPATH	1633	aio_realpath = EIO_REALPATH
1291	PPCODE:	1634	PPCODE:
1292	{	1635	{
…		…
1297		1640
1298	REQ_SEND;	1641	REQ_SEND;
1299	}	1642	}
1300		1643
1301	void	1644	void
1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1645	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1303	PPCODE:	1646	PPCODE:
1304	{	1647	{
1305	int ifd = s_fileno_croak (in_fh , 0);	1648	int ifd = s_fileno_croak (in_fh , 0);
1306	int ofd = s_fileno_croak (out_fh, 1);	1649	int ofd = s_fileno_croak (out_fh, 1);
1307	dREQ;	1650	dREQ;
…		…
1316		1659
1317	REQ_SEND;	1660	REQ_SEND;
1318	}	1661	}
1319		1662
1320	void	1663	void
1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1664	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1322	PPCODE:	1665	PPCODE:
1323	{	1666	{
1324	int fd = s_fileno_croak (fh, 0);	1667	int fd = s_fileno_croak (fh, 0);
1325	dREQ;	1668	dREQ;
1326		1669
…		…
1332		1675
1333	REQ_SEND;	1676	REQ_SEND;
1334	}	1677	}
1335		1678
1336	void	1679	void
1337	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1680	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1338	ALIAS:	1681	ALIAS:
1339	aio_stat = EIO_STAT	1682	aio_stat = EIO_STAT
1340	aio_lstat = EIO_LSTAT	1683	aio_lstat = EIO_LSTAT
1341	aio_statvfs = EIO_STATVFS	1684	aio_statvfs = EIO_STATVFS
1342	PPCODE:	1685	PPCODE:
…		…
1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1689	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1347		1690
1348	REQ_SEND;	1691	REQ_SEND;
1349	}	1692	}
1350		1693
		1694	void
		1695	st_xtime ()
		1696	ALIAS:
		1697	st_atime = 0x01
		1698	st_mtime = 0x02
		1699	st_ctime = 0x04
		1700	st_btime = 0x08
		1701	st_xtime = 0x0f
		1702	PPCODE:
		1703	EXTEND (SP, 4);
		1704	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1705	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1706	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1707	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1708
		1709	void
		1710	st_xtimensec ()
		1711	ALIAS:
		1712	st_atimensec = 0x01
		1713	st_mtimensec = 0x02
		1714	st_ctimensec = 0x04
		1715	st_btimensec = 0x08
		1716	st_xtimensec = 0x0f
		1717	st_btimesec = 0x10
		1718	st_gen = 0x20
		1719	PPCODE:
		1720	EXTEND (SP, 4);
		1721	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1722	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1723	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1724	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1725	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1726	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1727
1351	UV	1728	UV
1352	major (UV dev)	1729	major (UV dev)
1353	ALIAS:	1730	ALIAS:
1354	minor = 1	1731	minor = 1
1355	CODE:	1732	CODE:
1356	RETVAL = ix ? major (dev) : minor (dev);	1733	RETVAL = ix ? minor (dev) : major (dev);
1357	OUTPUT:	1734	OUTPUT:
1358	RETVAL	1735	RETVAL
1359		1736
1360	UV	1737	UV
1361	makedev (UV maj, UV min)	1738	makedev (UV maj, UV min)
…		…
1363	RETVAL = makedev (maj, min);	1740	RETVAL = makedev (maj, min);
1364	OUTPUT:	1741	OUTPUT:
1365	RETVAL	1742	RETVAL
1366		1743
1367	void	1744	void
1368	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1745	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1369	PPCODE:	1746	PPCODE:
1370	{	1747	{
1371	dREQ;	1748	dREQ;
1372		1749
1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1750	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1376		1753
1377	REQ_SEND;	1754	REQ_SEND;
1378	}	1755	}
1379		1756
1380	void	1757	void
1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1758	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1382	PPCODE:	1759	PPCODE:
1383	{	1760	{
1384	dREQ;	1761	dREQ;
1385		1762
1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1763	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1388		1765
1389	REQ_SEND;	1766	REQ_SEND;
1390	}	1767	}
1391		1768
1392	void	1769	void
1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1770	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1394	PPCODE:	1771	PPCODE:
1395	{	1772	{
1396	dREQ;	1773	dREQ;
1397		1774
1398	req->int2 = mode;	1775	req->int2 = mode;
…		…
1400		1777
1401	REQ_SEND;	1778	REQ_SEND;
1402	}	1779	}
1403		1780
1404	void	1781	void
1405	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1782	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1406	PPCODE:	1783	PPCODE:
1407	{	1784	{
1408	dREQ;	1785	dREQ;
1409		1786
1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1787	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1413		1790
1414	REQ_SEND;	1791	REQ_SEND;
1415	}	1792	}
1416		1793
1417	void	1794	void
1418	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1795	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1419	PPCODE:	1796	PPCODE:
1420	{	1797	{
1421	dREQ;	1798	dREQ;
1422		1799
1423	req->type = EIO_READDIR;	1800	req->type = EIO_READDIR;
…		…
1430		1807
1431	REQ_SEND;	1808	REQ_SEND;
1432	}	1809	}
1433		1810
1434	void	1811	void
1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1812	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1436	PPCODE:	1813	PPCODE:
1437	{	1814	{
1438	dREQ;	1815	dREQ;
1439		1816
1440	req->type = EIO_MKDIR;	1817	req->type = EIO_MKDIR;
…		…
1443		1820
1444	REQ_SEND;	1821	REQ_SEND;
1445	}	1822	}
1446		1823
1447	void	1824	void
1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1825	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1449	ALIAS:	1826	ALIAS:
1450	aio_unlink = EIO_UNLINK	1827	aio_unlink = EIO_UNLINK
1451	aio_rmdir = EIO_RMDIR	1828	aio_rmdir = EIO_RMDIR
1452	aio_readdir = EIO_READDIR	1829	aio_readdir = EIO_READDIR
1453	PPCODE:	1830	PPCODE:
…		…
1459		1836
1460	REQ_SEND;	1837	REQ_SEND;
1461	}	1838	}
1462		1839
1463	void	1840	void
1464	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1841	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1465	ALIAS:	1842	ALIAS:
1466	aio_link = EIO_LINK	1843	aio_link = EIO_LINK
1467	aio_symlink = EIO_SYMLINK	1844	aio_symlink = EIO_SYMLINK
1468	aio_rename = EIO_RENAME	1845	aio_rename = EIO_RENAME
1469	PPCODE:	1846	PPCODE:
…		…
1478		1855
1479	REQ_SEND;	1856	REQ_SEND;
1480	}	1857	}
1481		1858
1482	void	1859	void
		1860	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1861	PPCODE:
		1862	{
		1863	eio_wd wd2 = 0;
		1864	dREQ;
		1865
		1866	req->type = EIO_RENAME;
		1867	req_set_path1 (req, oldpath);
		1868	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1869	req->int2 = flags;
		1870	req->int3 = (long)wd2;
		1871
		1872	REQ_SEND;
		1873	}
		1874
		1875	void
1483	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1876	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1484	PPCODE:	1877	PPCODE:
1485	{	1878	{
1486	dREQ;	1879	dREQ;
1487		1880
1488	req->type = EIO_MKNOD;	1881	req->type = EIO_MKNOD;
…		…
1492		1885
1493	REQ_SEND;	1886	REQ_SEND;
1494	}	1887	}
1495		1888
1496	void	1889	void
1497	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1890	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1498	ALIAS:	1891	ALIAS:
1499	aio_mtouch = EIO_MTOUCH	1892	aio_mtouch = EIO_MTOUCH
1500	aio_msync = EIO_MSYNC	1893	aio_msync = EIO_MSYNC
1501	PPCODE:	1894	PPCODE:
1502	{	1895	{
1503	STRLEN svlen;	1896	STRLEN svlen;
1504	char *svptr = SvPVbyte (data, svlen);	1897	char *svptr = SvPVbyte (data, svlen);
1505	UV len = SvUV (length);	1898	UV len = SvUV (length);
		1899
		1900	if (flags < 0)
		1901	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1506		1902
1507	if (offset < 0)	1903	if (offset < 0)
1508	offset += svlen;	1904	offset += svlen;
1509		1905
1510	if (offset < 0 || offset > svlen)	1906	if (offset < 0 || offset > svlen)
…		…
1525	REQ_SEND;	1921	REQ_SEND;
1526	}	1922	}
1527	}	1923	}
1528		1924
1529	void	1925	void
1530	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1926	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1531	PPCODE:	1927	PPCODE:
1532	{	1928	{
1533	STRLEN svlen;	1929	STRLEN svlen;
1534	char *svptr = SvPVbyte (data, svlen);	1930	char *svptr = SvPVbyte (data, svlen);
1535	UV len = SvUV (length);	1931	UV len = SvUV (length);
…		…
1554	REQ_SEND;	1950	REQ_SEND;
1555	}	1951	}
1556	}	1952	}
1557		1953
1558	void	1954	void
1559	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1955	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1560	PPCODE:	1956	PPCODE:
1561	{	1957	{
1562	dREQ;	1958	dREQ;
1563		1959
1564	req->type = EIO_MLOCKALL;	1960	req->type = EIO_MLOCKALL;
…		…
1566		1962
1567	REQ_SEND;	1963	REQ_SEND;
1568	}	1964	}
1569		1965
1570	void	1966	void
1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	1967	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1572	PPCODE:	1968	PPCODE:
1573	{	1969	{
1574	int fd = s_fileno_croak (fh, 0);	1970	int fd = s_fileno_croak (fh, 0);
1575	dREQ;	1971	dREQ;
1576		1972
…		…
1589		1985
1590	REQ_SEND;	1986	REQ_SEND;
1591	}	1987	}
1592		1988
1593	void	1989	void
		1990	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1991	PPCODE:
		1992	{
		1993	char *svptr = 0;
		1994
		1995	sv_clear_foreign (data);
		1996
		1997	if (length) /* known length, directly read into scalar */
		1998	{
		1999	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2000	svptr = sv_grow (data, length + 1);
		2001	else if (SvCUR (data) < length)
		2002	croak ("length outside of scalar, and cannot grow");
		2003	else
		2004	svptr = SvPVbyte_nolen (data);
		2005	}
		2006
		2007	{
		2008	dREQ;
		2009
		2010	req->type = EIO_SLURP;
		2011	req_set_path1 (req, pathname);
		2012	req->offs = offset;
		2013	req->size = length;
		2014	req->sv2 = SvREFCNT_inc (data);
		2015	req->ptr2 = svptr;
		2016
		2017	if (!SvREADONLY (data))
		2018	{
		2019	SvREADONLY_on (data);
		2020	req->flags |= FLAG_SV2_RO_OFF;
		2021	}
		2022
		2023	REQ_SEND;
		2024	}
		2025	}
		2026
		2027	void
1594	aio_busy (double delay, SV *callback=&PL_sv_undef)	2028	aio_busy (double delay, SV *callback = &PL_sv_undef)
1595	PPCODE:	2029	PPCODE:
1596	{	2030	{
1597	dREQ;	2031	dREQ;
1598		2032
1599	req->type = EIO_BUSY;	2033	req->type = EIO_BUSY;
…		…
1601		2035
1602	REQ_SEND;	2036	REQ_SEND;
1603	}	2037	}
1604		2038
1605	void	2039	void
1606	aio_group (SV *callback=&PL_sv_undef)	2040	aio_group (SV *callback = &PL_sv_undef)
1607	PPCODE:	2041	PPCODE:
1608	{	2042	{
1609	dREQ;	2043	dREQ;
1610		2044
1611	req->type = EIO_GROUP;	2045	req->type = EIO_GROUP;
1612		2046
		2047	PUTBACK;
1613	req_submit (req);	2048	req_submit (req);
		2049	SPAGAIN;
		2050
1614	XPUSHs (req_sv (req, aio_grp_stash));	2051	XPUSHs (req_sv (req, aio_grp_stash));
1615	}	2052	}
1616		2053
1617	void	2054	void
1618	aio_nop (SV *callback=&PL_sv_undef)	2055	aio_nop (SV *callback = &PL_sv_undef)
1619	ALIAS:	2056	ALIAS:
1620	aio_nop = EIO_NOP	2057	aio_nop = EIO_NOP
1621	aio_sync = EIO_SYNC	2058	aio_sync = EIO_SYNC
1622	PPCODE:	2059	PPCODE:
1623	{	2060	{
…		…
1627		2064
1628	REQ_SEND;	2065	REQ_SEND;
1629	}	2066	}
1630		2067
1631	int	2068	int
1632	aioreq_pri (int pri = 0)	2069	aioreq_pri (int pri = NO_INIT)
1633	CODE:	2070	CODE:
1634	RETVAL = next_pri;	2071	RETVAL = next_pri;
1635	if (items > 0)	2072	if (items > 0)
1636	{	2073	{
1637	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2074	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2164	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1728	OUTPUT:	2165	OUTPUT:
1729	RETVAL	2166	RETVAL
1730		2167
1731	void	2168	void
1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2169	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1733	PPCODE:	2170	PPCODE:
1734	sv_unmagic (scalar, MMAP_MAGIC);	2171	sv_clear_foreign (scalar);
1735	{	2172	{
1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2173	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2174	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1738	if (addr == (void *)-1)	2175	if (addr == (void *)-1)
1739	XSRETURN_NO;	2176	XSRETURN_NO;
1740		2177
1741	sv_force_normal (scalar);	2178	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1742
1743	/* we store the length in mg_obj, as namlen is I32 :/ */
1744	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1745	->mg_obj = (SV *)length;
1746
1747	SvUPGRADE (scalar, SVt_PV); /* nop... */
1748		2179
1749	if (!(prot & PROT_WRITE))	2180	if (!(prot & PROT_WRITE))
1750	SvREADONLY_on (scalar);	2181	SvREADONLY_on (scalar);
1751		2182
1752	if (SvLEN (scalar))
1753	Safefree (SvPVX (scalar));
1754
1755	SvPVX (scalar) = (char *)addr;
1756	SvCUR_set (scalar, length);
1757	SvLEN_set (scalar, 0);
1758	SvPOK_only (scalar);
1759
1760	XSRETURN_YES;	2183	XSRETURN_YES;
1761	}	2184	}
1762		2185
1763	void	2186	void
1764	munmap (SV *scalar)	2187	munmap (SV *scalar)
1765	CODE:	2188	CODE:
1766	sv_unmagic (scalar, MMAP_MAGIC);	2189	sv_clear_foreign (scalar);
		2190
		2191	SV *
		2192	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2193	CODE:
		2194	{
		2195	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2196	void *new;
		2197
		2198	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2199	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2200
		2201	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2202
		2203	RETVAL = &PL_sv_no;
		2204
		2205	if (new != (void *)-1)
		2206	{
		2207	RETVAL = new == (void *)mg->mg_ptr
		2208	? newSVpvn ("0 but true", 10)
		2209	: &PL_sv_yes;
		2210
		2211	mg->mg_ptr = (char *)new;
		2212	mg->mg_obj = (SV *)new_length;
		2213
		2214	SvPVX (scalar) = mg->mg_ptr;
		2215	SvCUR_set (scalar, new_length);
		2216	}
		2217	}
		2218	OUTPUT:
		2219	RETVAL
1767		2220
1768	int	2221	int
1769	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2222	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1770	ALIAS:	2223	ALIAS:
1771	mprotect = 1	2224	mprotect = 1
1772	CODE:	2225	CODE:
1773	{	2226	{
1774	STRLEN svlen;	2227	STRLEN svlen;
1775	void *addr = SvPVbyte (scalar, svlen);	2228	void *addr = SvPVbyte (scalar, svlen);
1776	size_t len = SvUV (length);	2229	STRLEN len = SvUV (length);
1777		2230
1778	if (offset < 0)	2231	if (offset < 0)
1779	offset += svlen;	2232	offset += svlen;
1780		2233
1781	if (offset < 0 || offset > svlen)	2234	if (offset < 0 || offset > svlen)
…		…
1795	}	2248	}
1796	OUTPUT:	2249	OUTPUT:
1797	RETVAL	2250	RETVAL
1798		2251
1799	int	2252	int
1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2253	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1801	CODE:	2254	CODE:
1802	{	2255	{
1803	STRLEN svlen;	2256	STRLEN svlen;
1804	void *addr = SvPVbyte (scalar, svlen);	2257	void *addr = SvPVbyte (scalar, svlen);
1805	size_t len = SvUV (length);	2258	size_t len = SvUV (length);
…		…
1820	#else	2273	#else
1821	RETVAL = EIO_ENOSYS ();	2274	RETVAL = EIO_ENOSYS ();
1822	#endif	2275	#endif
1823	}	2276	}
1824	OUTPUT:	2277	OUTPUT:
		2278	RETVAL
		2279
		2280	int
		2281	mlockall (int flags)
		2282	PROTOTYPE: $;
		2283	CODE:
		2284	RETVAL = eio_mlockall_sync (flags);
		2285	OUTPUT:
1825	RETVAL	2286	RETVAL
1826		2287
1827	int	2288	int
1828	munlockall ()	2289	munlockall ()
1829	CODE:	2290	CODE:
…		…
1861	#else	2322	#else
1862	RETVAL = EIO_ENOSYS ();	2323	RETVAL = EIO_ENOSYS ();
1863	#endif	2324	#endif
1864	OUTPUT:	2325	OUTPUT:
1865	RETVAL	2326	RETVAL
		2327
		2328	int
		2329	pipesize (aio_rfd rfh, int new_size = -1)
		2330	PROTOTYPE: $;$
		2331	CODE:
		2332	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2333	if (new_size >= 0)
		2334	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2335	else
		2336	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2337	#else
		2338	errno = ENOSYS;
		2339	RETVAL = -1;
		2340	#endif
		2341	OUTPUT:
		2342	RETVAL
		2343
		2344	void
		2345	pipe2 (int flags = 0)
		2346	PROTOTYPE: ;$
		2347	PPCODE:
		2348	{
		2349	int fd[2];
		2350	int res;
		2351
		2352	if (flags)
		2353	#if HAVE_PIPE2
		2354	res = pipe2 (fd, flags);
		2355	#else
		2356	res = (errno = ENOSYS, -1);
		2357	#endif
		2358	else
		2359	res = pipe (fd);
		2360
		2361	if (!res)
		2362	{
		2363	EXTEND (SP, 2);
		2364	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2365	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2366	}
		2367	}
		2368
		2369	void
		2370	eventfd (unsigned int initval = 0, int flags = 0)
		2371	PPCODE:
		2372	{
		2373	int fd;
		2374	#if HAVE_EVENTFD
		2375	fd = eventfd (initval, flags);
		2376	#else
		2377	fd = (errno = ENOSYS, -1);
		2378	#endif
		2379
		2380	XPUSHs (newmortalFH (fd, O_RDWR));
		2381	}
		2382
		2383	void
		2384	timerfd_create (int clockid, int flags = 0)
		2385	PPCODE:
		2386	{
		2387	int fd;
		2388	#if HAVE_TIMERFD
		2389	fd = timerfd_create (clockid, flags);
		2390	#else
		2391	fd = (errno = ENOSYS, -1);
		2392	#endif
		2393
		2394	XPUSHs (newmortalFH (fd, O_RDWR));
		2395	}
		2396
		2397	void
		2398	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2399	PPCODE:
		2400	{
		2401	int fd = s_fileno_croak (fh, 0);
		2402	#if HAVE_TIMERFD
		2403	int res;
		2404	struct itimerspec its, ots;
		2405
		2406	ts_set (&its.it_interval, interval);
		2407	ts_set (&its.it_value , value);
		2408	res = timerfd_settime (fd, flags, &its, &ots);
		2409
		2410	if (!res)
		2411	{
		2412	EXTEND (SP, 2);
		2413	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2414	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2415	}
		2416	#else
		2417	errno = ENOSYS;
		2418	#endif
		2419	}
		2420
		2421	void
		2422	timerfd_gettime (SV *fh)
		2423	PPCODE:
		2424	{
		2425	int fd = s_fileno_croak (fh, 0);
		2426	#if HAVE_TIMERFD
		2427	int res;
		2428	struct itimerspec ots;
		2429	res = timerfd_gettime (fd, &ots);
		2430
		2431	if (!res)
		2432	{
		2433	EXTEND (SP, 2);
		2434	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2435	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2436	}
		2437	#else
		2438	errno = ENOSYS;
		2439	#endif
		2440	}
		2441
		2442	UV
		2443	get_fdlimit ()
		2444	CODE:
		2445	#if HAVE_RLIMITS
		2446	struct rlimit rl;
		2447	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2448	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2449	#endif
		2450	XSRETURN_UNDEF;
		2451	OUTPUT:
		2452	RETVAL
		2453
		2454	void
		2455	min_fdlimit (UV limit = 0x7fffffffU)
		2456	CODE:
		2457	{
		2458	#if HAVE_RLIMITS
		2459	struct rlimit rl;
		2460	rlim_t orig_rlim_max;
		2461	UV bit;
		2462
		2463	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2464	goto fail;
		2465
		2466	if (rl.rlim_cur == RLIM_INFINITY)
		2467	XSRETURN_YES;
		2468
		2469	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2470
		2471	if (rl.rlim_cur < limit)
		2472	{
		2473	rl.rlim_cur = limit;
		2474
		2475	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2476	rl.rlim_max = rl.rlim_cur;
		2477	}
		2478
		2479	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2480	XSRETURN_YES;
		2481
		2482	if (errno == EPERM)
		2483	{
		2484	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2485	/* our limit overflows a system-wide limit */
		2486	/* try an adaptive algorithm, but do not lower the hardlimit */
		2487	rl.rlim_max = 0;
		2488	for (bit = 0x40000000U; bit; bit >>= 1)
		2489	{
		2490	rl.rlim_max |= bit;
		2491	rl.rlim_cur = rl.rlim_max;
		2492
		2493	/* nevr decrease the hard limit */
		2494	if (rl.rlim_max < orig_rlim_max)
		2495	break;
		2496
		2497	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2498	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2499	}
		2500
		2501	/* now, raise the soft limit to the max permitted */
		2502	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2503	{
		2504	rl.rlim_cur = rl.rlim_max;
		2505	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2506	errno = EPERM;
		2507	}
		2508	}
		2509	#endif
		2510	fail:
		2511	XSRETURN_UNDEF;
		2512	}
1866		2513
1867	void _on_next_submit (SV *cb)	2514	void _on_next_submit (SV *cb)
1868	CODE:	2515	CODE:
1869	SvREFCNT_dec (on_next_submit);	2516	SvREFCNT_dec (on_next_submit);
1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2517	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1905	cancel (aio_req_ornot req)	2552	cancel (aio_req_ornot req)
1906	CODE:	2553	CODE:
1907	eio_cancel (req);	2554	eio_cancel (req);
1908		2555
1909	void	2556	void
1910	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2557	cb (aio_req_ornot req, SV *callback = NO_INIT)
1911	PPCODE:	2558	PPCODE:
1912	{	2559	{
1913	if (GIMME_V != G_VOID)	2560	if (GIMME_V != G_VOID)
1914	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2561	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1915		2562
1916	if (items > 1)	2563	if (items > 1)
1917	{	2564	{
1918	SV *cb_cv =get_cb (callback);	2565	SV *cb_cv = get_cb (callback);
1919		2566
1920	SvREFCNT_dec (req->callback);	2567	SvREFCNT_dec (req->callback);
1921	req->callback = SvREFCNT_inc (cb_cv);	2568	req->callback = SvREFCNT_inc (cb_cv);
1922	}	2569	}
1923	}	2570	}
…		…
1980	limit (aio_req grp, int limit)	2627	limit (aio_req grp, int limit)
1981	CODE:	2628	CODE:
1982	eio_grp_limit (grp, limit);	2629	eio_grp_limit (grp, limit);
1983		2630
1984	void	2631	void
1985	feed (aio_req grp, SV *callback=&PL_sv_undef)	2632	feed (aio_req grp, SV *callback = &PL_sv_undef)
1986	CODE:	2633	CODE:
1987	{	2634	{
1988	SvREFCNT_dec (grp->sv2);	2635	SvREFCNT_dec (grp->sv2);
1989	grp->sv2 = newSVsv (callback);	2636	grp->sv2 = newSVsv (callback);
1990	grp->feed = aio_grp_feed;	2637	grp->feed = aio_grp_feed;

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