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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.223 by root, Tue Aug 28 03:13:33 2012 UTC vs.
Revision 1.276 by root, Wed Apr 3 03:03:53 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_SYS_UIO_H
		123	# include <sys/uio.h>
		124	#endif
		125
		126	#if HAVE_ST_XTIMENSEC
		127	# define ATIMENSEC PL_statcache.st_atimensec
		128	# define MTIMENSEC PL_statcache.st_mtimensec
		129	# define CTIMENSEC PL_statcache.st_ctimensec
		130	#elif HAVE_ST_XTIMESPEC
		131	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		132	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		133	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		134	#else
		135	# define ATIMENSEC 0
		136	# define MTIMENSEC 0
		137	# define CTIMENSEC 0
		138	#endif
		139
		140	#if HAVE_ST_BIRTHTIMENSEC
		141	# define BTIMESEC PL_statcache.st_birthtime
		142	# define BTIMENSEC PL_statcache.st_birthtimensec
		143	#elif HAVE_ST_BIRTHTIMESPEC
		144	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		145	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		146	#else
		147	# define BTIMESEC 0
		148	# define BTIMENSEC 0
		149	#endif
		150
		151	#if HAVE_ST_GEN
		152	# define ST_GEN PL_statcache.st_gen
		153	#else
		154	# define ST_GEN 0
		155	#endif
		156
		157	#include "schmorp.h"
		158
		159	#if HAVE_EVENTFD
		160	# include <sys/eventfd.h>
		161	#endif
		162
		163	#if HAVE_TIMERFD
		164	# include <sys/timerfd.h>
		165	#endif
		166
		167	#if HAVE_RLIMITS
		168	#include <sys/time.h>
		169	#include <sys/resource.h>
		170	#endif
103		171
104	typedef SV SV8; /* byte-sv, used for argument-checking */	172	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	173	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	174	typedef int aio_wfd; /* write file descriptor */
107		175
…		…
114	STRLEN stroffset; \	182	STRLEN stroffset; \
115	SV *self;	183	SV *self;
116		184
117	#define EIO_NO_WRAPPERS 1	185	#define EIO_NO_WRAPPERS 1
118		186
119	#include "libeio/config.h"
120	#include "libeio/eio.h"	187	#include "libeio/eio.h"
121		188
122	static int req_invoke (eio_req *req);	189	static int req_invoke (eio_req *req);
123	#define EIO_FINISH(req) req_invoke (req)	190	#define EIO_FINISH(req) req_invoke (req)
124	static void req_destroy (eio_req *grp);	191	static void req_destroy (eio_req *grp);
…		…
140	# else	207	# else
141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	208	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
142	# endif	209	# endif
143	#endif	210	#endif
144		211
145	/* defines all sorts of constants to 0 unless they are already defined */
146	#include "def0.h"
147
148	#ifndef makedev	212	#ifndef makedev
149	# define makedev(maj,min) (((maj) << 8) | (min))	213	# define makedev(maj,min) (((maj) << 8) | (min))
150	#endif	214	#endif
151	#ifndef major	215	#ifndef major
152	# define major(dev) ((dev) >> 8)	216	# define major(dev) ((dev) >> 8)
153	#endif	217	#endif
154	#ifndef minor	218	#ifndef minor
155	# define minor(dev) ((dev) & 0xff)	219	# define minor(dev) ((dev) & 0xff)
156	#endif	220	#endif
157		221
		222	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		223	#ifdef __sun
158	#ifndef PAGESIZE	224	# undef PAGESIZE
		225	#endif
		226
		227	#if PAGESIZE <= 0
159	# define PAGESIZE sysconf (_SC_PAGESIZE)	228	# define PAGESIZE sysconf (_SC_PAGESIZE)
160	#endif	229	#endif
		230
		231	/*****************************************************************************/
		232
		233	#if !_POSIX_MAPPED_FILES
		234	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		235	# define munmap(addr,length) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !_POSIX_MEMORY_PROTECTION
		239	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		240	#endif
		241
		242	#if !MREMAP_MAYMOVE
		243	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		244	#endif
		245
		246	#define FOREIGN_MAGIC PERL_MAGIC_ext
		247
		248	static int ecb_cold
		249	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		250	{
		251	int old_errno = errno;
		252	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		253	errno = old_errno;
		254
		255	mg->mg_obj = 0; /* just in case */
		256
		257	SvREADONLY_off (sv);
		258
		259	if (SvPVX (sv) != mg->mg_ptr)
		260	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		261
		262	SvCUR_set (sv, 0);
		263	SvPVX (sv) = 0;
		264	SvOK_off (sv);
		265
		266	return 0;
		267	}
		268
		269	static MGVTBL mmap_vtbl = {
		270	0, 0, 0, 0, mmap_free
		271	};
		272
		273	static int ecb_cold
		274	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		275	{
		276	free (mg->mg_ptr);
		277	mg->mg_obj = 0; /* just in case */
		278
		279	SvREADONLY_off (sv);
		280
		281	if (SvPVX (sv) != mg->mg_ptr)
		282	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		283
		284	SvCUR_set (sv, 0);
		285	SvPVX (sv) = 0;
		286	SvOK_off (sv);
		287
		288	return 0;
		289	}
		290
		291	static MGVTBL sysfree_vtbl = {
		292	0, 0, 0, 0, sysfree_free
		293	};
		294
		295	/*****************************************************************************/
		296
		297	/* helper: set scalar to foreign ptr with custom free */
		298	ecb_noinline
		299	static void
		300	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		301	{
		302	sv_force_normal (sv);
		303
		304	/* we store the length in mg_obj, as namlen is I32 :/ */
		305	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		306	->mg_obj = (SV *)length;
		307
		308	SvUPGRADE (sv, SVt_PV); /* nop... */
		309
		310	if (SvLEN (sv))
		311	Safefree (SvPVX (sv));
		312
		313	SvPVX (sv) = (char *)addr;
		314	SvCUR_set (sv, length);
		315	SvLEN_set (sv, 0);
		316	SvPOK_only (sv);
		317	}
		318
		319	static void
		320	sv_clear_foreign (SV *sv)
		321	{
		322	/* todo: iterate over magic and only free ours, but of course */
		323	/* the perl5porters will call that (correct) behaviour buggy */
		324	sv_unmagic (sv, FOREIGN_MAGIC);
		325	}
		326
		327	/*****************************************************************************/
		328
		329	/* defines all sorts of constants to 0 unless they are already defined */
		330	/* also provides const_iv_ and const_niv_ macros for them */
		331	#include "def0.h"
161		332
162	/*****************************************************************************/	333	/*****************************************************************************/
163		334
164	static void	335	static void
165	fiemap (eio_req *req)	336	fiemap (eio_req *req)
…		…
198	|| !fiemap->fm_mapped_extents /* no more extents */	369	|| !fiemap->fm_mapped_extents /* no more extents */
199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)	370	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200	goto done;	371	goto done;
201		372
202	/* else we have to loop -	373	/* else we have to loop -
203	* it would be tempting (atcually I tried that first) to just query the	374	* 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	375	* number of extents needed, but linux often feels like not returning all
205	* extents, without telling us it left any out. this complicates	376	* extents, without telling us it left any out. this complicates
206	* this quite a bit.	377	* this quite a bit.
207	*/	378	*/
208		379
…		…
221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);	392	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
222		393
223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)	394	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
224	return;	395	return;
225		396
		397	if (!incmap->fm_mapped_extents)
		398	goto done;
		399
226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;	400	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);	401	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228	errno = ENOMEM;	402	errno = ENOMEM;
229	if (!fiemap)	403	if (!fiemap)
230	return;	404	return;
…		…
254	#endif	428	#endif
255	}	429	}
256		430
257	/*****************************************************************************/	431	/*****************************************************************************/
258		432
		433	static int close_fd; /* dummy fd to close fds via dup2 */
		434
		435	#if HAVE_STATX
		436	static struct statx stx;
		437	#define statx_offsetof(member) offsetof (struct statx, member)
		438	#define eio__statx statx
		439	#else
		440	#define statx_offsetof(member) 0
		441	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		442	#endif
		443
259	enum {	444	enum {
260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	445	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
261	};	446	};
262		447
263	typedef eio_req *aio_req;	448	typedef eio_req *aio_req;
…		…
286	/* read any signals sent by the worker threads */	471	/* read any signals sent by the worker threads */
287	s_epipe_drain (&respipe);	472	s_epipe_drain (&respipe);
288	}	473	}
289		474
290	/* must be called at most once */	475	/* must be called at most once */
		476	ecb_noinline
291	static SV *	477	static SV *
292	req_sv (aio_req req, HV *stash)	478	req_sv (aio_req req, HV *stash)
293	{	479	{
294	if (!req->self)	480	if (!req->self)
295	{	481	{
…		…
301	}	487	}
302		488
303	static SV *	489	static SV *
304	newSVaio_wd (aio_wd wd)	490	newSVaio_wd (aio_wd wd)
305	{	491	{
306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	492	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
307	}	493	}
308		494
		495	ecb_noinline
309	static aio_req	496	static aio_req
310	SvAIO_REQ (SV *sv)	497	SvAIO_REQ (SV *sv)
311	{	498	{
312	MAGIC *mg;	499	MAGIC *mg;
313		500
…		…
330	|| SvTYPE (SvRV (sv)) != SVt_PVMG	517	|| SvTYPE (SvRV (sv)) != SVt_PVMG
331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	518	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	519	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333		520
334	return (aio_wd)(long)SvIVX (SvRV (sv));	521	return (aio_wd)(long)SvIVX (SvRV (sv));
		522	}
		523
		524	static SV *
		525	newmortalFH (int fd, int flags)
		526	{
		527	if (fd < 0)
		528	return &PL_sv_undef;
		529
		530	GV *gv = (GV *)sv_newmortal ();
		531	char sym[64];
		532	int symlen;
		533
		534	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		535	gv_init (gv, aio_stash, sym, symlen, 0);
		536
		537	symlen = snprintf (
		538	sym,
		539	sizeof (sym),
		540	"%s&=%d",
		541	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		542	fd
		543	);
		544
		545	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		546	? (SV *)gv : &PL_sv_undef;
335	}	547	}
336		548
337	static void	549	static void
338	aio_grp_feed (aio_req grp)	550	aio_grp_feed (aio_req grp)
339	{	551	{
…		…
351	FREETMPS;	563	FREETMPS;
352	LEAVE;	564	LEAVE;
353	}	565	}
354	}	566	}
355		567
		568	ecb_noinline
356	static void	569	static void
357	req_submit (eio_req *req)	570	req_submit (eio_req *req)
358	{	571	{
359	eio_submit (req);	572	eio_submit (req);
360		573
…		…
467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	680	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
468	}	681	}
469	break;	682	break;
470		683
471	case EIO_OPEN:	684	case EIO_OPEN:
472	{	685	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;	686	break;
501		687
502	case EIO_STATVFS:	688	case EIO_STATVFS:
503	case EIO_FSTATVFS:	689	case EIO_FSTATVFS:
504	{	690	{
…		…
507	#ifndef _WIN32	693	#ifndef _WIN32
508	if (req->result >= 0)	694	if (req->result >= 0)
509	{	695	{
510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	696	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
511	HV *hv = newHV ();	697	HV *hv = newHV ();
		698	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		699	* chooses to make it a struct.
		700	*/
		701	unsigned long fsid = 0;
		702	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
512		703
513	rv = sv_2mortal (newRV_noinc ((SV *)hv));	704	rv = sv_2mortal (newRV_noinc ((SV *)hv));
514		705
515	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	706	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);	707	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);	709	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);	710	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);	711	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);	712	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);	713	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);	714	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
524	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	715	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);	716	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
526	}	717	}
527	#endif	718	#endif
528		719
…		…
579	SvSETMAGIC (req->sv2);	770	SvSETMAGIC (req->sv2);
580	PUSHs (sv_result);	771	PUSHs (sv_result);
581	}	772	}
582	break;	773	break;
583		774
		775	case EIO_SLURP:
		776	{
		777	if (req->result >= 0)
		778	{
		779	/* if length was originally not known, we steal the malloc'ed memory */
		780	if (req->flags & EIO_FLAG_PTR2_FREE)
		781	{
		782	req->flags &= ~EIO_FLAG_PTR2_FREE;
		783	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		784	}
		785	else
		786	{
		787	SvCUR_set (req->sv2, req->result);
		788	*SvEND (req->sv2) = 0;
		789	SvPOK_only (req->sv2);
		790	}
		791
		792	SvSETMAGIC (req->sv2);
		793	}
		794
		795	PUSHs (sv_result);
		796	}
		797	break;
		798
584	case EIO_CUSTOM:	799	case EIO_CUSTOM:
585	if (req->feed == fiemap)	800	if (req->feed == fiemap)
586	{	801	{
587	#if HAVE_FIEMAP	802	#if HAVE_FIEMAP
588	if (!req->result)	803	if (!req->result)
…		…
619	}	834	}
620	else	835	else
621	PUSHs (sv_result);	836	PUSHs (sv_result);
622	break;	837	break;
623		838
		839	#if 0
		840	case EIO_CLOSE:
		841	PerlIOUnix_refcnt_dec (req->int1);
		842	break;
		843	#endif
		844
624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	845	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
625	if (req->result > 0)	846	if (req->result > 0)
626	SvIV_set (sv_result, 0);	847	SvIV_set (sv_result, 0);
627	/* FALLTHROUGH */	848	/* FALLTHROUGH */
628		849
…		…
679	grp->sv2 = 0;	900	grp->sv2 = 0;
680		901
681	eio_grp_cancel (grp);	902	eio_grp_cancel (grp);
682	}	903	}
683		904
684	static void ecb_cold	905	ecb_cold
		906	static void
685	create_respipe (void)	907	create_respipe (void)
686	{	908	{
687	if (s_epipe_renew (&respipe))	909	if (s_epipe_renew (&respipe))
688	croak ("IO::AIO: unable to initialize result pipe");	910	croak ("IO::AIO: unable to initialize result pipe");
689	}	911	}
…		…
693	{	915	{
694	while (eio_nreqs ())	916	while (eio_nreqs ())
695	{	917	{
696	int size;	918	int size;
697		919
698	X_LOCK (reslock);	920	X_LOCK (EIO_POOL->reslock);
699	size = res_queue.size;	921	size = EIO_POOL->res_queue.size;
700	X_UNLOCK (reslock);	922	X_UNLOCK (EIO_POOL->reslock);
701		923
702	if (size)	924	if (size)
703	return;	925	return;
704		926
705	etp_maybe_start_thread ();	927	etp_maybe_start_thread (EIO_POOL);
706		928
707	s_epipe_wait (&respipe);	929	s_epipe_wait (&respipe);
708	}	930	}
709	}	931	}
710		932
…		…
723		945
724	poll_wait ();	946	poll_wait ();
725	}	947	}
726	}	948	}
727		949
728	static void ecb_cold	950	ecb_cold
		951	static void
729	reinit (void)	952	reinit (void)
730	{	953	{
731	create_respipe ();	954	create_respipe ();
732		955
733	if (eio_init (want_poll, done_poll) < 0)	956	if (eio_init (want_poll, done_poll) < 0)
734	croak ("IO::AIO: unable to initialise eio library");	957	croak ("IO::AIO: unable to initialise eio library");
735	}	958	}
736		959
737	/*****************************************************************************/	960	/*****************************************************************************/
738		961
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
780	/*****************************************************************************/
781
782	static SV *	962	static SV *
783	get_cb (SV *cb_sv)	963	get_cb (SV *cb_sv)
784	{	964	{
785	SvGETMAGIC (cb_sv);	965	SvGETMAGIC (cb_sv);
786	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	966	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
787	}	967	}
788		968
		969	ecb_noinline
789	static aio_req ecb_noinline	970	static aio_req ecb_noinline
790	dreq (SV *callback)	971	dreq (SV *callback)
791	{	972	{
792	SV *cb_cv;	973	SV *cb_cv;
793	aio_req req;	974	aio_req req;
…		…
815	SPAGAIN; \	996	SPAGAIN; \
816	\	997	\
817	if (GIMME_V != G_VOID) \	998	if (GIMME_V != G_VOID) \
818	XPUSHs (req_sv (req, aio_req_stash));	999	XPUSHs (req_sv (req, aio_req_stash));
819		1000
		1001	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
820	ecb_inline void	1002	ecb_inline
		1003	void
821	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	1004	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
822	{	1005	{
823	if (expect_false (SvROK (path)))	1006	if (expect_false (SvROK (path)))
824	{	1007	{
825	SV *rv = SvRV (path);	1008	SV *rv = SvRV (path);
826	SV *wdob;	1009	SV *wdob;
…		…
851		1034
852	*pathsv = newSVsv (path);	1035	*pathsv = newSVsv (path);
853	*ptr = SvPVbyte_nolen (*pathsv);	1036	*ptr = SvPVbyte_nolen (*pathsv);
854	}	1037	}
855		1038
856	static void ecb_noinline	1039	ecb_noinline
		1040	static void
857	req_set_path1 (aio_req req, SV *path)	1041	req_set_path1 (aio_req req, SV *path)
858	{	1042	{
859	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1043	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
860	}	1044	}
861		1045
862	static void ecb_noinline	1046	ecb_noinline
		1047	static void
863	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1048	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
864	{	1049	{
865	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1050	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
866		1051
867	switch (SvTYPE (rv))	1052	switch (SvTYPE (rv))
…		…
879	req_set_path1 (req, fh_or_path);	1064	req_set_path1 (req, fh_or_path);
880	break;	1065	break;
881	}	1066	}
882	}	1067	}
883		1068
		1069	/*****************************************************************************/
		1070
		1071	static void
		1072	ts_set (struct timespec *ts, NV value)
		1073	{
		1074	ts->tv_sec = value;
		1075	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1076	}
		1077
		1078	static NV
		1079	ts_get (const struct timespec *ts)
		1080	{
		1081	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1082	}
		1083
		1084	/*****************************************************************************/
		1085
884	XS(boot_IO__AIO) ecb_cold;	1086	XS(boot_IO__AIO) ecb_cold;
885		1087
886	MODULE = IO::AIO PACKAGE = IO::AIO	1088	MODULE = IO::AIO PACKAGE = IO::AIO
887		1089
888	PROTOTYPES: ENABLE	1090	PROTOTYPES: ENABLE
…		…
895	} *civ, const_iv[] = {	1097	} *civ, const_iv[] = {
896	# define const_niv(name, value) { # name, (IV) value },	1098	# define const_niv(name, value) { # name, (IV) value },
897	# define const_iv(name) { # name, (IV) name },	1099	# define const_iv(name) { # name, (IV) name },
898	# define const_eio(name) { # name, (IV) EIO_ ## name },	1100	# define const_eio(name) { # name, (IV) EIO_ ## name },
899		1101
900	/* you have to re-run ./gendef0 after adding/Removing any constants here */	1102	/* you have to re-run ./gendef0 after adding/removing any constants here */
901		1103	/* the first block can be undef if missing */
902	const_iv (ENOSYS)	1104	const_iv (ENOSYS)
903	const_iv (EXDEV)	1105	const_iv (EXDEV)
904	const_iv (EBADR)	1106	const_iv (EBADR)
		1107
		1108	/* for lseek */
		1109	const_iv (SEEK_DATA)
		1110	const_iv (SEEK_HOLE)
		1111
		1112	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1113	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1114	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1115	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1116	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1117	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1118
		1119	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1120	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1121	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1122	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1123	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1124
		1125	/* the second block will be 0 when missing */
		1126	const_iv (O_ACCMODE)
905		1127
906	const_iv (O_RDONLY)	1128	const_iv (O_RDONLY)
907	const_iv (O_WRONLY)	1129	const_iv (O_WRONLY)
908	const_iv (O_RDWR)	1130	const_iv (O_RDWR)
909	const_iv (O_CREAT)	1131	const_iv (O_CREAT)
…		…
923	const_iv (O_SEARCH)	1145	const_iv (O_SEARCH)
924	const_iv (O_DIRECTORY)	1146	const_iv (O_DIRECTORY)
925	const_iv (O_DSYNC)	1147	const_iv (O_DSYNC)
926	const_iv (O_RSYNC)	1148	const_iv (O_RSYNC)
927	const_iv (O_SYNC)	1149	const_iv (O_SYNC)
		1150	const_iv (O_PATH)
		1151	const_iv (O_TMPFILE)
928	const_iv (O_TTY_INIT)	1152	const_iv (O_TTY_INIT)
929		1153
930	const_iv (S_IFIFO)	1154	const_iv (S_IFIFO)
931	const_iv (S_IFCHR)	1155	const_iv (S_IFCHR)
932	const_iv (S_IFBLK)	1156	const_iv (S_IFBLK)
…		…
934	const_iv (S_IFREG)	1158	const_iv (S_IFREG)
935	const_iv (S_IFDIR)	1159	const_iv (S_IFDIR)
936	const_iv (S_IFWHT)	1160	const_iv (S_IFWHT)
937	const_iv (S_IFSOCK)	1161	const_iv (S_IFSOCK)
938	const_iv (S_IFMT)	1162	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		1163
953	const_iv (ST_RDONLY)	1164	const_iv (ST_RDONLY)
954	const_iv (ST_NOSUID)	1165	const_iv (ST_NOSUID)
955	const_iv (ST_NODEV)	1166	const_iv (ST_NODEV)
956	const_iv (ST_NOEXEC)	1167	const_iv (ST_NOEXEC)
…		…
966	const_iv (PROT_NONE)	1177	const_iv (PROT_NONE)
967	const_iv (PROT_EXEC)	1178	const_iv (PROT_EXEC)
968	const_iv (PROT_READ)	1179	const_iv (PROT_READ)
969	const_iv (PROT_WRITE)	1180	const_iv (PROT_WRITE)
970		1181
971	/*const_iv (MAP_FIXED)*/
972	const_iv (MAP_PRIVATE)	1182	const_iv (MAP_PRIVATE)
973	const_iv (MAP_SHARED)	1183	const_iv (MAP_SHARED)
		1184	const_iv (MAP_FIXED)
974	const_iv (MAP_ANONYMOUS)	1185	const_iv (MAP_ANONYMOUS)
975		1186
976	/* linuxish */	1187	/* linuxish */
977	const_iv (MAP_HUGETLB)
978	const_iv (MAP_LOCKED)	1188	const_iv (MAP_LOCKED)
979	const_iv (MAP_NORESERVE)	1189	const_iv (MAP_NORESERVE)
980	const_iv (MAP_POPULATE)	1190	const_iv (MAP_POPULATE)
981	const_iv (MAP_NONBLOCK)	1191	const_iv (MAP_NONBLOCK)
		1192	const_iv (MAP_GROWSDOWN)
		1193	const_iv (MAP_32BIT)
		1194	const_iv (MAP_HUGETLB)
		1195	const_iv (MAP_STACK)
		1196
		1197	const_iv (MREMAP_MAYMOVE)
		1198	const_iv (MREMAP_FIXED)
		1199
		1200	const_iv (F_DUPFD_CLOEXEC)
		1201
		1202	const_iv (MSG_CMSG_CLOEXEC)
		1203	const_iv (SOCK_CLOEXEC)
		1204
		1205	const_iv (F_OFD_GETLK)
		1206	const_iv (F_OFD_SETLK)
		1207	const_iv (F_OFD_GETLKW)
		1208
		1209	const_iv (FIFREEZE)
		1210	const_iv (FITHAW)
		1211	const_iv (FITRIM)
		1212	const_iv (FICLONE)
		1213	const_iv (FICLONERANGE)
		1214	const_iv (FIDEDUPERANGE)
		1215
		1216	const_iv (FS_IOC_GETFLAGS)
		1217	const_iv (FS_IOC_SETFLAGS)
		1218	const_iv (FS_IOC_GETVERSION)
		1219	const_iv (FS_IOC_SETVERSION)
		1220	const_iv (FS_IOC_FIEMAP)
		1221	const_iv (FS_IOC_FSGETXATTR)
		1222	const_iv (FS_IOC_FSSETXATTR)
		1223	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1224	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1225	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1226
		1227	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1228
		1229	const_iv (FS_SECRM_FL)
		1230	const_iv (FS_UNRM_FL)
		1231	const_iv (FS_COMPR_FL)
		1232	const_iv (FS_SYNC_FL)
		1233	const_iv (FS_IMMUTABLE_FL)
		1234	const_iv (FS_APPEND_FL)
		1235	const_iv (FS_NODUMP_FL)
		1236	const_iv (FS_NOATIME_FL)
		1237	const_iv (FS_DIRTY_FL)
		1238	const_iv (FS_COMPRBLK_FL)
		1239	const_iv (FS_NOCOMP_FL)
		1240	const_iv (FS_ENCRYPT_FL)
		1241	const_iv (FS_BTREE_FL)
		1242	const_iv (FS_INDEX_FL)
		1243	const_iv (FS_JOURNAL_DATA_FL)
		1244	const_iv (FS_NOTAIL_FL)
		1245	const_iv (FS_DIRSYNC_FL)
		1246	const_iv (FS_TOPDIR_FL)
		1247	const_iv (FS_FL_USER_MODIFIABLE)
		1248
		1249	const_iv (FS_XFLAG_REALTIME)
		1250	const_iv (FS_XFLAG_PREALLOC)
		1251	const_iv (FS_XFLAG_IMMUTABLE)
		1252	const_iv (FS_XFLAG_APPEND)
		1253	const_iv (FS_XFLAG_SYNC)
		1254	const_iv (FS_XFLAG_NOATIME)
		1255	const_iv (FS_XFLAG_NODUMP)
		1256	const_iv (FS_XFLAG_RTINHERIT)
		1257	const_iv (FS_XFLAG_PROJINHERIT)
		1258	const_iv (FS_XFLAG_NOSYMLINKS)
		1259	const_iv (FS_XFLAG_EXTSIZE)
		1260	const_iv (FS_XFLAG_EXTSZINHERIT)
		1261	const_iv (FS_XFLAG_NODEFRAG)
		1262	const_iv (FS_XFLAG_FILESTREAM)
		1263	const_iv (FS_XFLAG_DAX)
		1264	const_iv (FS_XFLAG_HASATTR)
982		1265
983	const_iv (FIEMAP_FLAG_SYNC)	1266	const_iv (FIEMAP_FLAG_SYNC)
984	const_iv (FIEMAP_FLAG_XATTR)	1267	const_iv (FIEMAP_FLAG_XATTR)
985	const_iv (FIEMAP_FLAGS_COMPAT)	1268	const_iv (FIEMAP_FLAGS_COMPAT)
986	const_iv (FIEMAP_EXTENT_LAST)	1269	const_iv (FIEMAP_EXTENT_LAST)
…		…
998	const_iv (SPLICE_F_MOVE)	1281	const_iv (SPLICE_F_MOVE)
999	const_iv (SPLICE_F_NONBLOCK)	1282	const_iv (SPLICE_F_NONBLOCK)
1000	const_iv (SPLICE_F_MORE)	1283	const_iv (SPLICE_F_MORE)
1001	const_iv (SPLICE_F_GIFT)	1284	const_iv (SPLICE_F_GIFT)
1002		1285
		1286	const_iv (EFD_CLOEXEC)
		1287	const_iv (EFD_NONBLOCK)
		1288	const_iv (EFD_SEMAPHORE)
		1289
		1290	const_iv (MFD_CLOEXEC)
		1291	const_iv (MFD_ALLOW_SEALING)
		1292	const_iv (MFD_HUGETLB)
		1293
		1294	const_iv (CLOCK_REALTIME)
		1295	const_iv (CLOCK_MONOTONIC)
		1296	const_iv (CLOCK_BOOTTIME)
		1297	const_iv (CLOCK_REALTIME_ALARM)
		1298	const_iv (CLOCK_BOOTTIME_ALARM)
		1299
		1300	const_iv (TFD_NONBLOCK)
		1301	const_iv (TFD_CLOEXEC)
		1302
		1303	const_iv (TFD_TIMER_ABSTIME)
		1304	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1305
		1306	const_iv (STATX_TYPE)
		1307	const_iv (STATX_MODE)
		1308	const_iv (STATX_NLINK)
		1309	const_iv (STATX_UID)
		1310	const_iv (STATX_GID)
		1311	const_iv (STATX_ATIME)
		1312	const_iv (STATX_MTIME)
		1313	const_iv (STATX_CTIME)
		1314	const_iv (STATX_INO)
		1315	const_iv (STATX_SIZE)
		1316	const_iv (STATX_BLOCKS)
		1317	const_iv (STATX_BASIC_STATS)
1003	const_iv (SEEK_DATA)	1318	const_iv (STATX_ALL)
1004	const_iv (SEEK_HOLE)	1319	const_iv (STATX_BTIME)
		1320	const_iv (STATX_ATTR_COMPRESSED)
		1321	const_iv (STATX_ATTR_IMMUTABLE)
		1322	const_iv (STATX_ATTR_APPEND)
		1323	const_iv (STATX_ATTR_NODUMP)
		1324	const_iv (STATX_ATTR_ENCRYPTED)
		1325	const_iv (STATX_ATTR_AUTOMOUNT)
1005		1326
1006	/* libeio constants */	1327	/* these are libeio constants, and are independent of gendef0 */
1007	const_eio (SEEK_SET)	1328	const_eio (SEEK_SET)
1008	const_eio (SEEK_CUR)	1329	const_eio (SEEK_CUR)
1009	const_eio (SEEK_END)	1330	const_eio (SEEK_END)
1010		1331
1011	const_eio (MCL_FUTURE)	1332	const_eio (MCL_FUTURE)
1012	const_eio (MCL_CURRENT)	1333	const_eio (MCL_CURRENT)
		1334	const_eio (MCL_ONFAULT)
1013		1335
1014	const_eio (MS_ASYNC)	1336	const_eio (MS_ASYNC)
1015	const_eio (MS_INVALIDATE)	1337	const_eio (MS_INVALIDATE)
1016	const_eio (MS_SYNC)	1338	const_eio (MS_SYNC)
1017		1339
…		…
1021	const_eio (SYNC_FILE_RANGE_WRITE)	1343	const_eio (SYNC_FILE_RANGE_WRITE)
1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1344	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1023		1345
1024	const_eio (FALLOC_FL_KEEP_SIZE)	1346	const_eio (FALLOC_FL_KEEP_SIZE)
1025	const_eio (FALLOC_FL_PUNCH_HOLE)	1347	const_eio (FALLOC_FL_PUNCH_HOLE)
		1348	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1349	const_eio (FALLOC_FL_ZERO_RANGE)
		1350	const_eio (FALLOC_FL_INSERT_RANGE)
		1351	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1352
		1353	const_eio (RENAME_NOREPLACE)
		1354	const_eio (RENAME_EXCHANGE)
		1355	const_eio (RENAME_WHITEOUT)
1026		1356
1027	const_eio (READDIR_DENTS)	1357	const_eio (READDIR_DENTS)
1028	const_eio (READDIR_DIRS_FIRST)	1358	const_eio (READDIR_DIRS_FIRST)
1029	const_eio (READDIR_STAT_ORDER)	1359	const_eio (READDIR_STAT_ORDER)
1030	const_eio (READDIR_FOUND_UNKNOWN)	1360	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1378	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));	1379	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1050		1380
1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1381	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1052		1382
		1383	/* allocate dummy pipe fd for aio_close */
		1384	{
		1385	int pipefd [2];
		1386
		1387	if (
		1388	#ifdef _WIN32
		1389	_pipe (pipefd, 1, _O_BINARY) < 0
		1390	#else
		1391	pipe (pipefd) < 0
		1392	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1393	#endif
		1394	|| close (pipefd [1]) < 0
		1395	)
		1396	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1397
		1398	close_fd = pipefd [0];
		1399	}
		1400
1053	reinit ();	1401	reinit ();
1054	}	1402	}
1055		1403
1056	void	1404	void
1057	reinit ()	1405	reinit ()
…		…
1098	PROTOTYPE: $	1446	PROTOTYPE: $
1099	CODE:	1447	CODE:
1100	max_outstanding = maxreqs;	1448	max_outstanding = maxreqs;
1101		1449
1102	void	1450	void
1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1451	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1104	PPCODE:	1452	PPCODE:
1105	{	1453	{
1106	dREQ;	1454	dREQ;
1107		1455
1108	req->type = EIO_WD_OPEN;	1456	req->type = EIO_WD_OPEN;
…		…
1110		1458
1111	REQ_SEND;	1459	REQ_SEND;
1112	}	1460	}
1113		1461
1114	void	1462	void
1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1463	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1116	PPCODE:	1464	PPCODE:
1117	{	1465	{
1118	dREQ;	1466	dREQ;
1119		1467
1120	req->type = EIO_OPEN;	1468	req->type = EIO_OPEN;
…		…
1124		1472
1125	REQ_SEND;	1473	REQ_SEND;
1126	}	1474	}
1127		1475
1128	void	1476	void
1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1477	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1130	ALIAS:	1478	ALIAS:
1131	aio_fsync = EIO_FSYNC	1479	aio_fsync = EIO_FSYNC
1132	aio_fdatasync = EIO_FDATASYNC	1480	aio_fdatasync = EIO_FDATASYNC
1133	aio_syncfs = EIO_SYNCFS	1481	aio_syncfs = EIO_SYNCFS
1134	PPCODE:	1482	PPCODE:
…		…
1142		1490
1143	REQ_SEND;	1491	REQ_SEND;
1144	}	1492	}
1145		1493
1146	void	1494	void
1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1495	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1148	PPCODE:	1496	PPCODE:
1149	{	1497	{
1150	int fd = s_fileno_croak (fh, 0);	1498	int fd = s_fileno_croak (fh, 0);
1151	dREQ;	1499	dREQ;
1152		1500
…		…
1159		1507
1160	REQ_SEND;	1508	REQ_SEND;
1161	}	1509	}
1162		1510
1163	void	1511	void
1164	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1512	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1165	PPCODE:	1513	PPCODE:
1166	{	1514	{
1167	int fd = s_fileno_croak (fh, 0);	1515	int fd = s_fileno_croak (fh, 0);
1168	dREQ;	1516	dREQ;
1169		1517
…		…
1176		1524
1177	REQ_SEND;	1525	REQ_SEND;
1178	}	1526	}
1179		1527
1180	void	1528	void
1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1529	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1182	PPCODE:	1530	PPCODE:
1183	{	1531	{
1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1185	int fd = s_fileno_croak (fh, 0);	1532	int fd = s_fileno_croak (fh, 0);
1186	dREQ;	1533	dREQ;
		1534	#if 0
		1535	/* partially duplicate logic in s_fileno */
		1536	SvGETMAGIC (fh);
1187		1537
1188	if (expect_false (close_fd < 0))	1538	if (SvROK (fh))
		1539	{
		1540	fh = SvRV (fh);
		1541	SvGETMAGIC (fh);
		1542	}
		1543
		1544	if (SvTYPE (fh) == SVt_PVGV)
1189	{	1545	{
1190	int pipefd [2];	1546	/* perl filehandle */
		1547	PerlIOUnix_refcnt_inc (fd);
		1548	do_close ((GV *)fh, 1);
1191		1549
1192	if (	1550	req->type = EIO_CLOSE;
1193	#ifdef _WIN32	1551	req->int1 = fd;
1194	_pipe (pipefd, 1, _O_BINARY) < 0	1552	/*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	}	1553	}
1205		1554	else
		1555	#endif
		1556	{
		1557	/* fd number */
1206	req->type = EIO_DUP2;	1558	req->type = EIO_DUP2;
1207	req->int1 = close_fd;	1559	req->int1 = close_fd;
1208	req->sv2 = newSVsv (fh);	1560	req->sv2 = newSVsv (fh);
1209	req->int2 = fd;	1561	req->int2 = fd;
		1562	}
1210		1563
1211	REQ_SEND;	1564	REQ_SEND;
1212	}	1565	}
1213		1566
1214	void	1567	void
1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1568	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1216	PPCODE:	1569	PPCODE:
1217	{	1570	{
1218	int fd = s_fileno_croak (fh, 0);	1571	int fd = s_fileno_croak (fh, 0);
1219	dREQ;	1572	dREQ;
1220		1573
…		…
1226		1579
1227	REQ_SEND;	1580	REQ_SEND;
1228	}	1581	}
1229		1582
1230	void	1583	void
1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1584	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1232	ALIAS:	1585	ALIAS:
1233	aio_read = EIO_READ	1586	aio_read = EIO_READ
1234	aio_write = EIO_WRITE	1587	aio_write = EIO_WRITE
1235	PPCODE:	1588	PPCODE:
1236	{	1589	{
…		…
1252	len = svlen - dataoffset;	1605	len = svlen - dataoffset;
1253	}	1606	}
1254	else	1607	else
1255	{	1608	{
1256	/* read: check type and grow scalar as necessary */	1609	/* read: check type and grow scalar as necessary */
1257	SvUPGRADE (data, SVt_PV);
1258	if (SvLEN (data) >= SvCUR (data))	1610	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1259	svptr = SvGROW (data, len + dataoffset + 1);	1611	svptr = sv_grow (data, len + dataoffset + 1);
1260	else if (SvCUR (data) < len + dataoffset)	1612	else if (SvCUR (data) < len + dataoffset)
1261	croak ("length + dataoffset outside of scalar, and cannot grow");	1613	croak ("length + dataoffset outside of scalar, and cannot grow");
1262	}	1614	}
1263		1615
1264	{	1616	{
…		…
1282	REQ_SEND;	1634	REQ_SEND;
1283	}	1635	}
1284	}	1636	}
1285		1637
1286	void	1638	void
		1639	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1640	ALIAS:
		1641	aio_ioctl = EIO_IOCTL
		1642	aio_fcntl = EIO_FCNTL
		1643	PPCODE:
		1644	{
		1645	int fd = s_fileno_croak (fh, 0);
		1646	char *svptr;
		1647
		1648	if (SvPOK (arg) || !SvNIOK (arg))
		1649	{
		1650	STRLEN svlen;
		1651	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1652	#ifdef IOCPARM_LEN
		1653	STRLEN need = IOCPARM_LEN (request);
		1654	#else
		1655	STRLEN need = 256;
		1656	#endif
		1657
		1658	if (svlen < need)
		1659	svptr = SvGROW (arg, need);
		1660	}
		1661	else
		1662	svptr = (char *)SvIV (arg);
		1663
		1664	{
		1665	dREQ;
		1666
		1667	req->type = ix;
		1668	req->sv1 = newSVsv (fh);
		1669	req->int1 = fd;
		1670	req->int2 = (long)request;
		1671	req->sv2 = SvREFCNT_inc (arg);
		1672	req->ptr2 = svptr;
		1673
		1674	REQ_SEND;
		1675	}
		1676	}
		1677
		1678	void
1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1679	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1288	ALIAS:	1680	ALIAS:
1289	aio_readlink = EIO_READLINK	1681	aio_readlink = EIO_READLINK
1290	aio_realpath = EIO_REALPATH	1682	aio_realpath = EIO_REALPATH
1291	PPCODE:	1683	PPCODE:
1292	{	1684	{
…		…
1297		1689
1298	REQ_SEND;	1690	REQ_SEND;
1299	}	1691	}
1300		1692
1301	void	1693	void
1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1694	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1303	PPCODE:	1695	PPCODE:
1304	{	1696	{
1305	int ifd = s_fileno_croak (in_fh , 0);	1697	int ifd = s_fileno_croak (in_fh , 0);
1306	int ofd = s_fileno_croak (out_fh, 1);	1698	int ofd = s_fileno_croak (out_fh, 1);
1307	dREQ;	1699	dREQ;
…		…
1316		1708
1317	REQ_SEND;	1709	REQ_SEND;
1318	}	1710	}
1319		1711
1320	void	1712	void
1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1713	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1322	PPCODE:	1714	PPCODE:
1323	{	1715	{
1324	int fd = s_fileno_croak (fh, 0);	1716	int fd = s_fileno_croak (fh, 0);
1325	dREQ;	1717	dREQ;
1326		1718
…		…
1332		1724
1333	REQ_SEND;	1725	REQ_SEND;
1334	}	1726	}
1335		1727
1336	void	1728	void
1337	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1729	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1338	ALIAS:	1730	ALIAS:
1339	aio_stat = EIO_STAT	1731	aio_stat = EIO_STAT
1340	aio_lstat = EIO_LSTAT	1732	aio_lstat = EIO_LSTAT
1341	aio_statvfs = EIO_STATVFS	1733	aio_statvfs = EIO_STATVFS
1342	PPCODE:	1734	PPCODE:
…		…
1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1738	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1347		1739
1348	REQ_SEND;	1740	REQ_SEND;
1349	}	1741	}
1350		1742
		1743	void
		1744	st_xtime ()
		1745	ALIAS:
		1746	st_atime = 0x01
		1747	st_mtime = 0x02
		1748	st_ctime = 0x04
		1749	st_btime = 0x08
		1750	st_xtime = 0x0f
		1751	PPCODE:
		1752	EXTEND (SP, 4);
		1753	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1754	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1755	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1756	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1757
		1758	void
		1759	st_xtimensec ()
		1760	ALIAS:
		1761	st_atimensec = 0x01
		1762	st_mtimensec = 0x02
		1763	st_ctimensec = 0x04
		1764	st_btimensec = 0x08
		1765	st_xtimensec = 0x0f
		1766	st_btimesec = 0x10
		1767	st_gen = 0x20
		1768	PPCODE:
		1769	EXTEND (SP, 4);
		1770	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1771	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1772	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1773	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1774	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1775	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1776
1351	UV	1777	UV
1352	major (UV dev)	1778	major (UV dev)
1353	ALIAS:	1779	ALIAS:
1354	minor = 1	1780	minor = 1
1355	CODE:	1781	CODE:
1356	RETVAL = ix ? major (dev) : minor (dev);	1782	RETVAL = ix ? minor (dev) : major (dev);
1357	OUTPUT:	1783	OUTPUT:
1358	RETVAL	1784	RETVAL
1359		1785
1360	UV	1786	UV
1361	makedev (UV maj, UV min)	1787	makedev (UV maj, UV min)
…		…
1363	RETVAL = makedev (maj, min);	1789	RETVAL = makedev (maj, min);
1364	OUTPUT:	1790	OUTPUT:
1365	RETVAL	1791	RETVAL
1366		1792
1367	void	1793	void
1368	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1794	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1369	PPCODE:	1795	PPCODE:
1370	{	1796	{
1371	dREQ;	1797	dREQ;
1372		1798
1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1799	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1376		1802
1377	REQ_SEND;	1803	REQ_SEND;
1378	}	1804	}
1379		1805
1380	void	1806	void
1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1807	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1382	PPCODE:	1808	PPCODE:
1383	{	1809	{
1384	dREQ;	1810	dREQ;
1385		1811
1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1812	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1388		1814
1389	REQ_SEND;	1815	REQ_SEND;
1390	}	1816	}
1391		1817
1392	void	1818	void
1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1819	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1394	PPCODE:	1820	PPCODE:
1395	{	1821	{
1396	dREQ;	1822	dREQ;
1397		1823
1398	req->int2 = mode;	1824	req->int2 = mode;
…		…
1400		1826
1401	REQ_SEND;	1827	REQ_SEND;
1402	}	1828	}
1403		1829
1404	void	1830	void
1405	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1831	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1406	PPCODE:	1832	PPCODE:
1407	{	1833	{
1408	dREQ;	1834	dREQ;
1409		1835
1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1836	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1413		1839
1414	REQ_SEND;	1840	REQ_SEND;
1415	}	1841	}
1416		1842
1417	void	1843	void
1418	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1844	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1419	PPCODE:	1845	PPCODE:
1420	{	1846	{
1421	dREQ;	1847	dREQ;
1422		1848
1423	req->type = EIO_READDIR;	1849	req->type = EIO_READDIR;
…		…
1430		1856
1431	REQ_SEND;	1857	REQ_SEND;
1432	}	1858	}
1433		1859
1434	void	1860	void
1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1861	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1436	PPCODE:	1862	PPCODE:
1437	{	1863	{
1438	dREQ;	1864	dREQ;
1439		1865
1440	req->type = EIO_MKDIR;	1866	req->type = EIO_MKDIR;
…		…
1443		1869
1444	REQ_SEND;	1870	REQ_SEND;
1445	}	1871	}
1446		1872
1447	void	1873	void
1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1874	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1449	ALIAS:	1875	ALIAS:
1450	aio_unlink = EIO_UNLINK	1876	aio_unlink = EIO_UNLINK
1451	aio_rmdir = EIO_RMDIR	1877	aio_rmdir = EIO_RMDIR
1452	aio_readdir = EIO_READDIR	1878	aio_readdir = EIO_READDIR
1453	PPCODE:	1879	PPCODE:
…		…
1459		1885
1460	REQ_SEND;	1886	REQ_SEND;
1461	}	1887	}
1462		1888
1463	void	1889	void
1464	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1890	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1465	ALIAS:	1891	ALIAS:
1466	aio_link = EIO_LINK	1892	aio_link = EIO_LINK
1467	aio_symlink = EIO_SYMLINK	1893	aio_symlink = EIO_SYMLINK
1468	aio_rename = EIO_RENAME	1894	aio_rename = EIO_RENAME
1469	PPCODE:	1895	PPCODE:
…		…
1471	eio_wd wd2 = 0;	1897	eio_wd wd2 = 0;
1472	dREQ;	1898	dREQ;
1473		1899
1474	req->type = ix;	1900	req->type = ix;
1475	req_set_path1 (req, oldpath);	1901	req_set_path1 (req, oldpath);
1476	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1902	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1477	req->int3 = (long)wd2;	1903	req->int3 = (long)wd2;
1478		1904
1479	REQ_SEND;	1905	REQ_SEND;
1480	}	1906	}
1481		1907
1482	void	1908	void
		1909	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1910	PPCODE:
		1911	{
		1912	eio_wd wd2 = 0;
		1913	dREQ;
		1914
		1915	req->type = EIO_RENAME;
		1916	req_set_path1 (req, oldpath);
		1917	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1918	req->int2 = flags;
		1919	req->int3 = (long)wd2;
		1920
		1921	REQ_SEND;
		1922	}
		1923
		1924	void
1483	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1925	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1484	PPCODE:	1926	PPCODE:
1485	{	1927	{
1486	dREQ;	1928	dREQ;
1487		1929
1488	req->type = EIO_MKNOD;	1930	req->type = EIO_MKNOD;
…		…
1492		1934
1493	REQ_SEND;	1935	REQ_SEND;
1494	}	1936	}
1495		1937
1496	void	1938	void
1497	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1939	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1498	ALIAS:	1940	ALIAS:
1499	aio_mtouch = EIO_MTOUCH	1941	aio_mtouch = EIO_MTOUCH
1500	aio_msync = EIO_MSYNC	1942	aio_msync = EIO_MSYNC
1501	PPCODE:	1943	PPCODE:
1502	{	1944	{
1503	STRLEN svlen;	1945	STRLEN svlen;
1504	char *svptr = SvPVbyte (data, svlen);	1946	char *svptr = SvPVbyte (data, svlen);
1505	UV len = SvUV (length);	1947	UV len = SvUV (length);
		1948
		1949	if (flags < 0)
		1950	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1506		1951
1507	if (offset < 0)	1952	if (offset < 0)
1508	offset += svlen;	1953	offset += svlen;
1509		1954
1510	if (offset < 0 || offset > svlen)	1955	if (offset < 0 || offset > svlen)
…		…
1525	REQ_SEND;	1970	REQ_SEND;
1526	}	1971	}
1527	}	1972	}
1528		1973
1529	void	1974	void
1530	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1975	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1531	PPCODE:	1976	PPCODE:
1532	{	1977	{
1533	STRLEN svlen;	1978	STRLEN svlen;
1534	char *svptr = SvPVbyte (data, svlen);	1979	char *svptr = SvPVbyte (data, svlen);
1535	UV len = SvUV (length);	1980	UV len = SvUV (length);
…		…
1554	REQ_SEND;	1999	REQ_SEND;
1555	}	2000	}
1556	}	2001	}
1557		2002
1558	void	2003	void
1559	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	2004	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1560	PPCODE:	2005	PPCODE:
1561	{	2006	{
1562	dREQ;	2007	dREQ;
1563		2008
1564	req->type = EIO_MLOCKALL;	2009	req->type = EIO_MLOCKALL;
…		…
1566		2011
1567	REQ_SEND;	2012	REQ_SEND;
1568	}	2013	}
1569		2014
1570	void	2015	void
1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)	2016	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1572	PPCODE:	2017	PPCODE:
1573	{	2018	{
1574	int fd = s_fileno_croak (fh, 0);	2019	int fd = s_fileno_croak (fh, 0);
1575	dREQ;	2020	dREQ;
1576		2021
…		…
1589		2034
1590	REQ_SEND;	2035	REQ_SEND;
1591	}	2036	}
1592		2037
1593	void	2038	void
		2039	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2040	PPCODE:
		2041	{
		2042	char *svptr = 0;
		2043
		2044	sv_clear_foreign (data);
		2045
		2046	if (length) /* known length, directly read into scalar */
		2047	{
		2048	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2049	svptr = sv_grow (data, length + 1);
		2050	else if (SvCUR (data) < length)
		2051	croak ("length outside of scalar, and cannot grow");
		2052	else
		2053	svptr = SvPVbyte_nolen (data);
		2054	}
		2055
		2056	{
		2057	dREQ;
		2058
		2059	req->type = EIO_SLURP;
		2060	req_set_path1 (req, pathname);
		2061	req->offs = offset;
		2062	req->size = length;
		2063	req->sv2 = SvREFCNT_inc (data);
		2064	req->ptr2 = svptr;
		2065
		2066	if (!SvREADONLY (data))
		2067	{
		2068	SvREADONLY_on (data);
		2069	req->flags |= FLAG_SV2_RO_OFF;
		2070	}
		2071
		2072	REQ_SEND;
		2073	}
		2074	}
		2075
		2076	void
1594	aio_busy (double delay, SV *callback=&PL_sv_undef)	2077	aio_busy (double delay, SV *callback = &PL_sv_undef)
1595	PPCODE:	2078	PPCODE:
1596	{	2079	{
1597	dREQ;	2080	dREQ;
1598		2081
1599	req->type = EIO_BUSY;	2082	req->type = EIO_BUSY;
…		…
1601		2084
1602	REQ_SEND;	2085	REQ_SEND;
1603	}	2086	}
1604		2087
1605	void	2088	void
1606	aio_group (SV *callback=&PL_sv_undef)	2089	aio_group (SV *callback = &PL_sv_undef)
1607	PPCODE:	2090	PPCODE:
1608	{	2091	{
1609	dREQ;	2092	dREQ;
1610		2093
1611	req->type = EIO_GROUP;	2094	req->type = EIO_GROUP;
1612		2095
		2096	PUTBACK;
1613	req_submit (req);	2097	req_submit (req);
		2098	SPAGAIN;
		2099
1614	XPUSHs (req_sv (req, aio_grp_stash));	2100	XPUSHs (req_sv (req, aio_grp_stash));
1615	}	2101	}
1616		2102
1617	void	2103	void
1618	aio_nop (SV *callback=&PL_sv_undef)	2104	aio_nop (SV *callback = &PL_sv_undef)
1619	ALIAS:	2105	ALIAS:
1620	aio_nop = EIO_NOP	2106	aio_nop = EIO_NOP
1621	aio_sync = EIO_SYNC	2107	aio_sync = EIO_SYNC
1622	PPCODE:	2108	PPCODE:
1623	{	2109	{
…		…
1627		2113
1628	REQ_SEND;	2114	REQ_SEND;
1629	}	2115	}
1630		2116
1631	int	2117	int
1632	aioreq_pri (int pri = 0)	2118	aioreq_pri (int pri = NO_INIT)
1633	CODE:	2119	CODE:
1634	RETVAL = next_pri;	2120	RETVAL = next_pri;
1635	if (items > 0)	2121	if (items > 0)
1636	{	2122	{
1637	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2123	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2213	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1728	OUTPUT:	2214	OUTPUT:
1729	RETVAL	2215	RETVAL
1730		2216
1731	void	2217	void
1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)	2218	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1733	PPCODE:	2219	PPCODE:
1734	sv_unmagic (scalar, MMAP_MAGIC);	2220	sv_clear_foreign (scalar);
1735	{	2221	{
1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2222	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2223	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1738	if (addr == (void *)-1)	2224	if (addr == (void *)-1)
1739	XSRETURN_NO;	2225	XSRETURN_NO;
1740		2226
1741	sv_force_normal (scalar);	2227	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		2228
1749	if (!(prot & PROT_WRITE))	2229	if (!(prot & PROT_WRITE))
1750	SvREADONLY_on (scalar);	2230	SvREADONLY_on (scalar);
1751		2231
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;	2232	XSRETURN_YES;
1761	}	2233	}
1762		2234
1763	void	2235	void
1764	munmap (SV *scalar)	2236	munmap (SV *scalar)
1765	CODE:	2237	CODE:
1766	sv_unmagic (scalar, MMAP_MAGIC);	2238	sv_clear_foreign (scalar);
		2239
		2240	SV *
		2241	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2242	CODE:
		2243	{
		2244	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2245	void *new;
		2246
		2247	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2248	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2249
		2250	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2251
		2252	RETVAL = &PL_sv_no;
		2253
		2254	if (new != (void *)-1)
		2255	{
		2256	RETVAL = new == (void *)mg->mg_ptr
		2257	? newSVpvn ("0 but true", 10)
		2258	: &PL_sv_yes;
		2259
		2260	mg->mg_ptr = (char *)new;
		2261	mg->mg_obj = (SV *)new_length;
		2262
		2263	SvPVX (scalar) = mg->mg_ptr;
		2264	SvCUR_set (scalar, new_length);
		2265	}
		2266	}
		2267	OUTPUT:
		2268	RETVAL
1767		2269
1768	int	2270	int
1769	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2271	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1770	ALIAS:	2272	ALIAS:
1771	mprotect = 1	2273	mprotect = 1
1772	CODE:	2274	CODE:
1773	{	2275	{
1774	STRLEN svlen;	2276	STRLEN svlen;
1775	void *addr = SvPVbyte (scalar, svlen);	2277	void *addr = SvPVbyte (scalar, svlen);
1776	size_t len = SvUV (length);	2278	STRLEN len = SvUV (length);
1777		2279
1778	if (offset < 0)	2280	if (offset < 0)
1779	offset += svlen;	2281	offset += svlen;
1780		2282
1781	if (offset < 0 || offset > svlen)	2283	if (offset < 0 || offset > svlen)
…		…
1795	}	2297	}
1796	OUTPUT:	2298	OUTPUT:
1797	RETVAL	2299	RETVAL
1798		2300
1799	int	2301	int
1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2302	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1801	CODE:	2303	CODE:
1802	{	2304	{
1803	STRLEN svlen;	2305	STRLEN svlen;
1804	void *addr = SvPVbyte (scalar, svlen);	2306	void *addr = SvPVbyte (scalar, svlen);
1805	size_t len = SvUV (length);	2307	size_t len = SvUV (length);
…		…
1820	#else	2322	#else
1821	RETVAL = EIO_ENOSYS ();	2323	RETVAL = EIO_ENOSYS ();
1822	#endif	2324	#endif
1823	}	2325	}
1824	OUTPUT:	2326	OUTPUT:
		2327	RETVAL
		2328
		2329	int
		2330	mlockall (int flags)
		2331	PROTOTYPE: $;
		2332	CODE:
		2333	RETVAL = eio_mlockall_sync (flags);
		2334	OUTPUT:
1825	RETVAL	2335	RETVAL
1826		2336
1827	int	2337	int
1828	munlockall ()	2338	munlockall ()
1829	CODE:	2339	CODE:
…		…
1831	munlockall ();	2341	munlockall ();
1832	#else	2342	#else
1833	RETVAL = EIO_ENOSYS ();	2343	RETVAL = EIO_ENOSYS ();
1834	#endif	2344	#endif
1835	OUTPUT:	2345	OUTPUT:
		2346	RETVAL
		2347
		2348	int
		2349	statx (SV8 *pathname, int flags, UV mask)
		2350	CODE:
		2351	{
		2352	/* undocumented, and might go away, and anyway, should use eio_statx */
		2353	SV *wdsv = 0;
		2354	SV *pathsv = 0;
		2355	eio_wd wd = EIO_CWD;
		2356	void *ptr;
		2357	int res;
		2358
		2359	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2360	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2361
		2362	SvREFCNT_dec (pathsv);
		2363	SvREFCNT_dec (wdsv);
		2364	}
		2365	OUTPUT:
		2366	RETVAL
		2367
		2368	U32
		2369	stx_mode ()
		2370	PROTOTYPE:
		2371	CODE:
		2372	#if HAVE_STATX
		2373	RETVAL = stx.stx_mode;
		2374	#else
		2375	XSRETURN_UNDEF;
		2376	#endif
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2381	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2382	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2383	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2384	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2385	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2386	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2387	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2388	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2389	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2390	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2391	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2392	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2393	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2394	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2395	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2396	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2397	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2398
		2399	U32
		2400	stx_mask ()
		2401	PROTOTYPE:
		2402	ALIAS:
		2403	stx_mask = STATX_OFFSET_mask
		2404	stx_blksize = STATX_OFFSET_blksize
		2405	stx_nlink = STATX_OFFSET_nlink
		2406	stx_uid = STATX_OFFSET_uid
		2407	stx_gid = STATX_OFFSET_gid
		2408	stx_rdev_major = STATX_OFFSET_rdev_major
		2409	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2410	stx_dev_major = STATX_OFFSET_dev_major
		2411	stx_dev_minor = STATX_OFFSET_dev_minor
		2412	CODE:
		2413	#if HAVE_STATX
		2414	RETVAL = *(__u32 *)((char *)&stx + ix);
		2415	#else
		2416	XSRETURN_UNDEF;
		2417	#endif
		2418	OUTPUT:
		2419	RETVAL
		2420
		2421	VAL64
		2422	stx_attributes ()
		2423	PROTOTYPE:
		2424	ALIAS:
		2425	stx_attributes = STATX_OFFSET_attributes
		2426	stx_ino = STATX_OFFSET_ino
		2427	stx_size = STATX_OFFSET_size
		2428	stx_blocks = STATX_OFFSET_blocks
		2429	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2430	CODE:
		2431	#if HAVE_STATX
		2432	RETVAL = *(__u64 *)((char *)&stx + ix);
		2433	#else
		2434	XSRETURN_UNDEF;
		2435	#endif
		2436	OUTPUT:
		2437	RETVAL
		2438
		2439	NV
		2440	stx_atime ()
		2441	PROTOTYPE:
		2442	ALIAS:
		2443	stx_atime = STATX_OFFSET_atime
		2444	stx_btime = STATX_OFFSET_btime
		2445	stx_ctime = STATX_OFFSET_ctime
		2446	stx_mtime = STATX_OFFSET_mtime
		2447	CODE:
		2448	#if HAVE_STATX
		2449	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2450	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2451	#else
		2452	XSRETURN_UNDEF;
		2453	#endif
		2454	OUTPUT:
		2455	RETVAL
		2456
		2457	VAL64
		2458	stx_atimesec ()
		2459	PROTOTYPE:
		2460	ALIAS:
		2461	stx_atimesec = STATX_OFFSET_atime
		2462	stx_btimesec = STATX_OFFSET_btime
		2463	stx_ctimesec = STATX_OFFSET_ctime
		2464	stx_mtimesec = STATX_OFFSET_mtime
		2465	CODE:
		2466	#if HAVE_STATX
		2467	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2468	RETVAL = ts->tv_sec;
		2469	#else
		2470	XSRETURN_UNDEF;
		2471	#endif
		2472	OUTPUT:
		2473	RETVAL
		2474
		2475	U32
		2476	stx_atimensec ()
		2477	PROTOTYPE:
		2478	ALIAS:
		2479	stx_atimensec = STATX_OFFSET_atime
		2480	stx_btimensec = STATX_OFFSET_btime
		2481	stx_ctimensec = STATX_OFFSET_ctime
		2482	stx_mtimensec = STATX_OFFSET_mtime
		2483	CODE:
		2484	#if HAVE_STATX
		2485	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2486	RETVAL = ts->tv_nsec;
		2487	#else
		2488	RETVAL = 0;
		2489	#endif
		2490	OUTPUT:
1836	RETVAL	2491	RETVAL
1837		2492
1838	int	2493	int
1839	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)	2494	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1840	CODE:	2495	CODE:
…		…
1861	#else	2516	#else
1862	RETVAL = EIO_ENOSYS ();	2517	RETVAL = EIO_ENOSYS ();
1863	#endif	2518	#endif
1864	OUTPUT:	2519	OUTPUT:
1865	RETVAL	2520	RETVAL
		2521
		2522	int
		2523	pipesize (aio_rfd rfh, int new_size = -1)
		2524	PROTOTYPE: $;$
		2525	CODE:
		2526	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2527	if (new_size >= 0)
		2528	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2529	else
		2530	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2531	#else
		2532	errno = ENOSYS;
		2533	RETVAL = -1;
		2534	#endif
		2535	OUTPUT:
		2536	RETVAL
		2537
		2538	void
		2539	pipe2 (int flags = 0)
		2540	PROTOTYPE: ;$
		2541	PPCODE:
		2542	{
		2543	int fd[2];
		2544	int res;
		2545
		2546	if (flags)
		2547	#if HAVE_PIPE2
		2548	res = pipe2 (fd, flags);
		2549	#else
		2550	res = (errno = ENOSYS, -1);
		2551	#endif
		2552	else
		2553	res = pipe (fd);
		2554
		2555	if (!res)
		2556	{
		2557	EXTEND (SP, 2);
		2558	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2559	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2560	}
		2561	}
		2562
		2563	void
		2564	eventfd (unsigned int initval = 0, int flags = 0)
		2565	PPCODE:
		2566	{
		2567	int fd;
		2568	#if HAVE_EVENTFD
		2569	fd = eventfd (initval, flags);
		2570	#else
		2571	fd = (errno = ENOSYS, -1);
		2572	#endif
		2573
		2574	XPUSHs (newmortalFH (fd, O_RDWR));
		2575	}
		2576
		2577	void
		2578	timerfd_create (int clockid, int flags = 0)
		2579	PPCODE:
		2580	{
		2581	int fd;
		2582	#if HAVE_TIMERFD
		2583	fd = timerfd_create (clockid, flags);
		2584	#else
		2585	fd = (errno = ENOSYS, -1);
		2586	#endif
		2587
		2588	XPUSHs (newmortalFH (fd, O_RDWR));
		2589	}
		2590
		2591	void
		2592	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2593	PPCODE:
		2594	{
		2595	int fd = s_fileno_croak (fh, 0);
		2596	#if HAVE_TIMERFD
		2597	int res;
		2598	struct itimerspec its, ots;
		2599
		2600	ts_set (&its.it_interval, interval);
		2601	ts_set (&its.it_value , value);
		2602	res = timerfd_settime (fd, flags, &its, &ots);
		2603
		2604	if (!res)
		2605	{
		2606	EXTEND (SP, 2);
		2607	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2608	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2609	}
		2610	#else
		2611	errno = ENOSYS;
		2612	#endif
		2613	}
		2614
		2615	void
		2616	timerfd_gettime (SV *fh)
		2617	PPCODE:
		2618	{
		2619	int fd = s_fileno_croak (fh, 0);
		2620	#if HAVE_TIMERFD
		2621	int res;
		2622	struct itimerspec ots;
		2623	res = timerfd_gettime (fd, &ots);
		2624
		2625	if (!res)
		2626	{
		2627	EXTEND (SP, 2);
		2628	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2629	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2630	}
		2631	#else
		2632	errno = ENOSYS;
		2633	#endif
		2634	}
		2635
		2636	void
		2637	memfd_create (SV8 *pathname, int flags = 0)
		2638	PPCODE:
		2639	{
		2640	int fd;
		2641	#if HAVE_MEMFD_CREATE
		2642	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2643	#else
		2644	fd = (errno = ENOSYS, -1);
		2645	#endif
		2646
		2647	XPUSHs (newmortalFH (fd, O_RDWR));
		2648	}
		2649
		2650	UV
		2651	get_fdlimit ()
		2652	CODE:
		2653	#if HAVE_RLIMITS
		2654	struct rlimit rl;
		2655	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2656	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2657	#endif
		2658	XSRETURN_UNDEF;
		2659	OUTPUT:
		2660	RETVAL
		2661
		2662	void
		2663	min_fdlimit (UV limit = 0x7fffffffU)
		2664	CODE:
		2665	{
		2666	#if HAVE_RLIMITS
		2667	struct rlimit rl;
		2668	rlim_t orig_rlim_max;
		2669	UV bit;
		2670
		2671	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2672	goto fail;
		2673
		2674	if (rl.rlim_cur == RLIM_INFINITY)
		2675	XSRETURN_YES;
		2676
		2677	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2678
		2679	if (rl.rlim_cur < limit)
		2680	{
		2681	rl.rlim_cur = limit;
		2682
		2683	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2684	rl.rlim_max = rl.rlim_cur;
		2685	}
		2686
		2687	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2688	XSRETURN_YES;
		2689
		2690	if (errno == EPERM)
		2691	{
		2692	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2693	/* our limit overflows a system-wide limit */
		2694	/* try an adaptive algorithm, but do not lower the hardlimit */
		2695	rl.rlim_max = 0;
		2696	for (bit = 0x40000000U; bit; bit >>= 1)
		2697	{
		2698	rl.rlim_max |= bit;
		2699	rl.rlim_cur = rl.rlim_max;
		2700
		2701	/* nevr decrease the hard limit */
		2702	if (rl.rlim_max < orig_rlim_max)
		2703	break;
		2704
		2705	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2706	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2707	}
		2708
		2709	/* now, raise the soft limit to the max permitted */
		2710	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2711	{
		2712	rl.rlim_cur = rl.rlim_max;
		2713	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2714	errno = EPERM;
		2715	}
		2716	}
		2717	#endif
		2718	fail:
		2719	XSRETURN_UNDEF;
		2720	}
1866		2721
1867	void _on_next_submit (SV *cb)	2722	void _on_next_submit (SV *cb)
1868	CODE:	2723	CODE:
1869	SvREFCNT_dec (on_next_submit);	2724	SvREFCNT_dec (on_next_submit);
1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2725	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1905	cancel (aio_req_ornot req)	2760	cancel (aio_req_ornot req)
1906	CODE:	2761	CODE:
1907	eio_cancel (req);	2762	eio_cancel (req);
1908		2763
1909	void	2764	void
1910	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2765	cb (aio_req_ornot req, SV *callback = NO_INIT)
1911	PPCODE:	2766	PPCODE:
1912	{	2767	{
1913	if (GIMME_V != G_VOID)	2768	if (GIMME_V != G_VOID)
1914	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2769	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1915		2770
1916	if (items > 1)	2771	if (items > 1)
1917	{	2772	{
1918	SV *cb_cv =get_cb (callback);	2773	SV *cb_cv = get_cb (callback);
1919		2774
1920	SvREFCNT_dec (req->callback);	2775	SvREFCNT_dec (req->callback);
1921	req->callback = SvREFCNT_inc (cb_cv);	2776	req->callback = SvREFCNT_inc (cb_cv);
1922	}	2777	}
1923	}	2778	}
…		…
1980	limit (aio_req grp, int limit)	2835	limit (aio_req grp, int limit)
1981	CODE:	2836	CODE:
1982	eio_grp_limit (grp, limit);	2837	eio_grp_limit (grp, limit);
1983		2838
1984	void	2839	void
1985	feed (aio_req grp, SV *callback=&PL_sv_undef)	2840	feed (aio_req grp, SV *callback = &PL_sv_undef)
1986	CODE:	2841	CODE:
1987	{	2842	{
1988	SvREFCNT_dec (grp->sv2);	2843	SvREFCNT_dec (grp->sv2);
1989	grp->sv2 = newSVsv (callback);	2844	grp->sv2 = newSVsv (callback);
1990	grp->feed = aio_grp_feed;	2845	grp->feed = aio_grp_feed;

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