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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.200 by root, Thu Sep 29 09:51:24 2011 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 UTC

…		…
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
22	#endif	35	#endif
23		36
24	/* perl namespace pollution */	37	/* perl namespace pollution */
25	#undef VERSION	38	#undef VERSION
26		39
…		…
62	#undef dup	75	#undef dup
63	#undef dup2	76	#undef dup2
64	#undef abort	77	#undef abort
65	#undef pipe	78	#undef pipe
66		79
		80	#define EIO_STRUCT_STAT struct _stati64
		81	#define EIO_STRUCT_STATI64
		82
67	#else	83	#else
68		84
69	#include <sys/time.h>	85	#include <sys/time.h>
70	#include <sys/select.h>	86	#include <sys/select.h>
71	#include <unistd.h>	87	#include <unistd.h>
72	#include <utime.h>	88	#include <utime.h>
73	#include <signal.h>	89	#include <signal.h>
74		90
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STAT Stat_t
78		92
79	/* use NV for 32 bit perls as it allows larger offsets */
80	#if IVSIZE >= 8
81	# define VAL64 IV
82	# define SvVAL64 SvIV
83	# define newSVval64 newSViv
84	#else
85	# define VAL64 NV
86	# define SvVAL64 SvNV
87	# define newSVval64 newSVnv
88	#endif	93	#endif
89		94
90	/*****************************************************************************/	95	/*****************************************************************************/
91		96
92	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
123	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
125		130
126	#include "libeio/eio.c"	131	#include "libeio/eio.c"
127		132
128	/* Linux/others */
129	#ifndef O_ASYNC
130	# define O_ASYNC 0
131	#endif
132	#ifndef O_DIRECT
133	# define O_DIRECT 0
134	#endif
135	#ifndef O_NOATIME
136	# define O_NOATIME 0
137	#endif
138
139	/* POSIX */
140	#ifndef O_CLOEXEC
141	# define O_CLOEXEC 0
142	#endif
143	#ifndef O_NOFOLLOW
144	# define O_NOFOLLOW 0
145	#endif
146	#ifndef O_NOCTTY
147	# define O_NOCTTY 0
148	#endif
149	#ifndef O_NONBLOCK
150	# define O_NONBLOCK 0
151	#endif
152	#ifndef O_EXEC
153	# define O_EXEC 0
154	#endif
155	#ifndef O_SEARCH
156	# define O_SEARCH 0
157	#endif
158	#ifndef O_DIRECTORY
159	# define O_DIRECTORY 0
160	#endif
161	#ifndef O_DSYNC
162	# define O_DSYNC 0
163	#endif
164	#ifndef O_RSYNC
165	# define O_RSYNC 0
166	#endif
167	#ifndef O_SYNC
168	# define O_SYNC 0
169	#endif
170	#ifndef O_TTY_INIT
171	# define O_TTY_INIT 0
172	#endif
173
174	#ifndef POSIX_FADV_NORMAL
175	# define POSIX_FADV_NORMAL 0
176	#endif
177	#ifndef POSIX_FADV_SEQUENTIAL
178	# define POSIX_FADV_SEQUENTIAL 0
179	#endif
180	#ifndef POSIX_FADV_RANDOM
181	# define POSIX_FADV_RANDOM 0
182	#endif
183	#ifndef POSIX_FADV_NOREUSE
184	# define POSIX_FADV_NOREUSE 0
185	#endif
186	#ifndef POSIX_FADV_WILLNEED
187	# define POSIX_FADV_WILLNEED 0
188	#endif
189	#ifndef POSIX_FADV_DONTNEED
190	# define POSIX_FADV_DONTNEED 0
191	#endif
192
193	#if !HAVE_POSIX_FADVISE	133	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	135	#endif
196		136
197	#ifndef POSIX_MADV_NORMAL
198	# define POSIX_MADV_NORMAL 0
199	#endif
200	#ifndef POSIX_MADV_SEQUENTIAL
201	# define POSIX_MADV_SEQUENTIAL 0
202	#endif
203	#ifndef POSIX_MADV_RANDOM
204	# define POSIX_MADV_RANDOM 0
205	#endif
206	#ifndef POSIX_MADV_WILLNEED
207	# define POSIX_MADV_WILLNEED 0
208	#endif
209	#ifndef POSIX_MADV_DONTNEED
210	# define POSIX_MADV_DONTNEED 0
211	#endif
212
213	#if !HAVE_POSIX_MADVISE	137	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215	#endif
216
217	#ifndef PROT_NONE
218	# define PROT_NONE 0
219	#endif
220	#ifndef PROT_READ
221	# define PROT_READ 0
222	#endif
223	#ifndef PROT_WRITE
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_EXEC
227	# define PROT_EXEC 0
228	#endif
229
230	#ifndef ST_RDONLY
231	# define ST_RDONLY 0
232	#endif
233	#ifndef ST_NOSUID
234	# define ST_NOSUID 0
235	#endif
236	#ifndef ST_NODEV
237	# define ST_NODEV 0
238	#endif
239	#ifndef ST_NOEXEC
240	# define ST_NOEXEC 0
241	#endif
242	#ifndef ST_SYNCHRONOUS
243	# define ST_SYNCHRONOUS 0
244	#endif
245	#ifndef ST_MANDLOCK
246	# define ST_MANDLOCK 0
247	#endif
248	#ifndef ST_WRITE
249	# define ST_WRITE 0
250	#endif
251	#ifndef ST_APPEND
252	# define ST_APPEND 0
253	#endif
254	#ifndef ST_IMMUTABLE
255	# define ST_IMMUTABLE 0
256	#endif
257	#ifndef ST_NOATIME
258	# define ST_NOATIME 0
259	#endif
260	#ifndef ST_NODIRATIME
261	# define ST_NODIRATIME 0
262	#endif
263	#ifndef ST_RELATIME
264	# define ST_RELATIME 0
265	#endif
266
267	#ifndef S_IFIFO
268	# define S_IFIFO 0
269	#endif
270	#ifndef S_IFCHR
271	# define S_IFCHR 0
272	#endif
273	#ifndef S_IFBLK
274	# define S_IFBLK 0
275	#endif
276	#ifndef S_IFLNK
277	# define S_IFLNK 0
278	#endif
279	#ifndef S_IFREG
280	# define S_IFREG 0
281	#endif
282	#ifndef S_IFDIR
283	# define S_IFDIR 0
284	#endif
285	#ifndef S_IFWHT
286	# define S_IFWHT 0
287	#endif
288	#ifndef S_IFSOCK
289	# define S_IFSOCK 0
290	#endif	139	#endif
291		140
292	#ifndef MAP_ANONYMOUS	141	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	142	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	143	# define MAP_ANONYMOUS MAP_ANON
295	# else	144	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	146	# endif
298	#endif	147	#endif
299	#ifndef MAP_HUGETLB	148
300	# define MAP_HUGETLB 0	149	/* defines all sorts of constants to 0 unless they are already defined */
301	#endif	150	#include "def0.h"
302	#ifndef MAP_LOCKED
303	# define MAP_LOCKED 0
304	#endif
305	#ifndef MAP_NORESERVE
306	# define MAP_NORESERVE 0
307	#endif
308	#ifndef MAP_POPULATE
309	# define MAP_POPULATE 0
310	#endif
311	#ifndef MAP_NONBLOCK
312	# define MAP_NONBLOCK 0
313	#endif
314		151
315	#ifndef makedev	152	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	153	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	154	#endif
318	#ifndef major	155	#ifndef major
…		…
320	#endif	157	#endif
321	#ifndef minor	158	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	159	# define minor(dev) ((dev) & 0xff)
323	#endif	160	#endif
324		161
325	#ifndef PAGESIZE	162	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	163	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	164	#endif
		165
		166	/*****************************************************************************/
		167
		168	static void
		169	fiemap (eio_req *req)
		170	{
		171	req->result = -1;
		172
		173	#if HAVE_FIEMAP
		174	/* assume some c99 */
		175	struct fiemap *fiemap = 0;
		176	size_t end_offset;
		177	int count = req->int3;
		178
		179	req->flags |= EIO_FLAG_PTR1_FREE;
		180
		181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		182	/* increase in 3.5kb steps */
		183	if (count < 0)
		184	count = 8;
		185
		186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		187	errno = ENOMEM;
		188	if (!fiemap)
		189	return;
		190
		191	req->ptr1 = fiemap;
		192
		193	fiemap->fm_start = req->offs;
		194	fiemap->fm_length = req->size;
		195	fiemap->fm_flags = req->int2;
		196	fiemap->fm_extent_count = count;
		197
		198	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		199	return;
		200
		201	if (req->int3 >= 0 /* not autosizing */
		202	|| !fiemap->fm_mapped_extents /* no more extents */
		203	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		204	goto done;
		205
		206	/* else we have to loop -
		207	* it would be tempting (actually I tried that first) to just query the
		208	* number of extents needed, but linux often feels like not returning all
		209	* extents, without telling us it left any out. this complicates
		210	* this quite a bit.
		211	*/
		212
		213	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		214
		215	for (;;)
		216	{
		217	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		218	char scratch[3072];
		219	struct fiemap *incmap = (struct fiemap *)scratch;
		220
		221	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		222	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		223	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		224	incmap->fm_flags = fiemap->fm_flags;
		225	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		226
		227	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		228	return;
		229
		230	if (!incmap->fm_mapped_extents)
		231	goto done;
		232
		233	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		234	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		235	errno = ENOMEM;
		236	if (!fiemap)
		237	return;
		238
		239	req->ptr1 = fiemap;
		240
		241	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		242	{
		243	struct fiemap_extent *e = incmap->fm_extents + count;
		244
		245	if (e->fe_logical + e->fe_length >= end_offset)
		246	goto done;
		247
		248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		249
		250	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		251	goto done;
		252
		253	}
		254	}
		255
		256	done:
		257	req->result = 0;
		258
		259	#else
		260	errno = ENOSYS;
		261	#endif
		262	}
		263
		264	/*****************************************************************************/
328		265
329	enum {	266	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	268	};
332		269
…		…
341	static s_epipe respipe;	278	static s_epipe respipe;
342		279
343	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
344	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
345		282
346	static void want_poll (void)	283	static void
		284	want_poll (void)
347	{	285	{
348	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
349	s_epipe_signal (&respipe);	287	s_epipe_signal (&respipe);
350	}	288	}
351		289
352	static void done_poll (void)	290	static void
		291	done_poll (void)
353	{	292	{
354	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
355	s_epipe_drain (&respipe);	294	s_epipe_drain (&respipe);
356	}	295	}
357		296
358	/* must be called at most once */	297	/* must be called at most once */
		298	static SV *
359	static SV *req_sv (aio_req req, HV *stash)	299	req_sv (aio_req req, HV *stash)
360	{	300	{
361	if (!req->self)	301	if (!req->self)
362	{	302	{
363	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
364	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
…		…
368	}	308	}
369		309
370	static SV *	310	static SV *
371	newSVaio_wd (aio_wd wd)	311	newSVaio_wd (aio_wd wd)
372	{	312	{
373	return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);	313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
374	}	314	}
375		315
376	static aio_req SvAIO_REQ (SV *sv)	316	static aio_req
		317	SvAIO_REQ (SV *sv)
377	{	318	{
378	MAGIC *mg;	319	MAGIC *mg;
379		320
380	if (!SvROK (sv)	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
381	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
382	&& SvSTASH (SvRV (sv)) != aio_req_stash	324	&& SvSTASH (SvRV (sv)) != aio_req_stash
383	&& !sv_derived_from (sv, "IO::AIO::REQ")))	325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
384	croak ("object of class IO::AIO::REQ expected");	326	croak ("object of class IO::AIO::REQ expected");
385		327
386	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
387		329
388	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
389	}	331	}
390		332
391	static aio_wd SvAIO_WD (SV *sv)	333	static aio_wd
		334	SvAIO_WD (SV *sv)
392	{	335	{
393	if (!SvROK (sv)	336	if (!SvROK (sv)
		337	|| SvTYPE (SvRV (sv)) != SVt_PVMG
394	|| SvSTASH (SvRV (sv)) != aio_wd_stash	338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
395	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
396	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
397		340
398	return (aio_wd)(long)SvIVX (SvRV (sv));	341	return (aio_wd)(long)SvIVX (SvRV (sv));
399	}	342	}
400		343
		344	static void
401	static void aio_grp_feed (aio_req grp)	345	aio_grp_feed (aio_req grp)
402	{	346	{
403	if (grp->sv2 && SvOK (grp->sv2))	347	if (grp->sv2 && SvOK (grp->sv2))
404	{	348	{
405	dSP;	349	dSP;
406		350
…		…
414	FREETMPS;	358	FREETMPS;
415	LEAVE;	359	LEAVE;
416	}	360	}
417	}	361	}
418		362
		363	static void
419	static void req_submit (eio_req *req)	364	req_submit (eio_req *req)
420	{	365	{
421	eio_submit (req);	366	eio_submit (req);
422		367
423	if (expect_false (on_next_submit))	368	if (expect_false (on_next_submit))
424	{	369	{
…		…
431	PUTBACK;	376	PUTBACK;
432	call_sv (cb, G_DISCARD | G_EVAL);	377	call_sv (cb, G_DISCARD | G_EVAL);
433	}	378	}
434	}	379	}
435		380
		381	static int
436	static int req_invoke (eio_req *req)	382	req_invoke (eio_req *req)
437	{	383	{
438	if (req->flags & FLAG_SV2_RO_OFF)	384	if (req->flags & FLAG_SV2_RO_OFF)
439	SvREADONLY_off (req->sv2);	385	SvREADONLY_off (req->sv2);
440		386
441	if (!EIO_CANCELLED (req) && req->callback)	387	if (!EIO_CANCELLED (req) && req->callback)
…		…
463	}	409	}
464		410
465	switch (req->type)	411	switch (req->type)
466	{	412	{
467	case EIO_WD_OPEN:	413	case EIO_WD_OPEN:
468	PUSHs (sv_2mortal (newSVaio_wd (req->wd)));	414	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
469	break;	415	break;
470		416
471	case EIO_READDIR:	417	case EIO_READDIR:
472	{	418	{
473	SV *rv = &PL_sv_undef;	419	SV *rv = &PL_sv_undef;
…		…
568	#ifndef _WIN32	514	#ifndef _WIN32
569	if (req->result >= 0)	515	if (req->result >= 0)
570	{	516	{
571	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
572	HV *hv = newHV ();	518	HV *hv = newHV ();
		519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		520	* chooses to make it a struct.
		521	*/
		522	unsigned long fsid = 0;
		523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
573		524
574	rv = sv_2mortal (newRV_noinc ((SV *)hv));	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
575		526
576	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
577	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
579	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
580	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
581	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
582	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
583	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
584	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
585	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
586	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
587	}	538	}
588	#endif	539	#endif
589		540
…		…
624	if (!(PL_laststatval = req->result))	575	if (!(PL_laststatval = req->result))
625	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
626	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
627		578
628	PUSHs (sv_result);	579	PUSHs (sv_result);
		580	break;
		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
629	break;	584	break;
630		585
631	case EIO_READ:	586	case EIO_READ:
632	{	587	{
633	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
636	SvSETMAGIC (req->sv2);	591	SvSETMAGIC (req->sv2);
637	PUSHs (sv_result);	592	PUSHs (sv_result);
638	}	593	}
639	break;	594	break;
640		595
		596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
641	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
642	if (req->result > 0)	637	if (req->result > 0)
643	SvIV_set (sv_result, 0);	638	SvIV_set (sv_result, 0);
644	/* FALLTHROUGH */	639	/* FALLTHROUGH */
645		640
…		…
666	}	661	}
667		662
668	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
669	}	664	}
670		665
		666	static void
671	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
672	{	668	{
673	if (req->self)	669	if (req->self)
674	{	670	{
675	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
676	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
…		…
680	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
681	SvREFCNT_dec (req->sv3);	677	SvREFCNT_dec (req->sv3);
682	SvREFCNT_dec (req->sv4);	678	SvREFCNT_dec (req->sv4);
683	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
684		680
685	Safefree (req);	681	free (req);
686	}	682	}
687		683
		684	static void
688	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
689	{	686	{
690	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
691	return;	688	return;
692		689
693	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
694	grp->sv2 = 0;	691	grp->sv2 = 0;
695		692
696	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
697	}	694	}
698		695
		696	static void ecb_cold
699	static void create_respipe (void)	697	create_respipe (void)
700	{	698	{
701	if (s_epipe_renew (&respipe))	699	if (s_epipe_renew (&respipe))
702	croak ("IO::AIO: unable to initialize result pipe");	700	croak ("IO::AIO: unable to initialize result pipe");
703	}	701	}
704		702
705	static void poll_wait (void)	703	static void
		704	poll_wait (void)
706	{	705	{
707	while (eio_nreqs ())	706	while (eio_nreqs ())
708	{	707	{
709	int size;	708	int size;
710		709
…		…
719		718
720	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
721	}	720	}
722	}	721	}
723		722
724	static int poll_cb (void)	723	static int
		724	poll_cb (void)
725	{	725	{
726	for (;;)	726	for (;;)
727	{	727	{
728	int res = eio_poll ();	728	int res = eio_poll ();
729		729
…		…
747	}	747	}
748		748
749	/*****************************************************************************/	749	/*****************************************************************************/
750		750
751	#if !_POSIX_MAPPED_FILES	751	#if !_POSIX_MAPPED_FILES
752	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753	# define munmap(addr,length) (errno = ENOSYS, -1)	753	# define munmap(addr,length) EIO_ENOSYS ()
754	#endif	754	#endif
755		755
756	#if !_POSIX_MEMORY_PROTECTION	756	#if !_POSIX_MEMORY_PROTECTION
757	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
758	# define PROT_NONE 0	758	# define PROT_NONE 0
759	# define PROT_WRITE 0	759	# define PROT_WRITE 0
760	# define MAP_PRIVATE 0	760	# define MAP_PRIVATE 0
761	# define MAP_SHARED 0	761	# define MAP_SHARED 0
762	# define MAP_FIXED 0	762	# define MAP_FIXED 0
763	#endif	763	#endif
764		764
765	#define MMAP_MAGIC PERL_MAGIC_ext	765	#define MMAP_MAGIC PERL_MAGIC_ext
766		766
		767	static int ecb_cold
767	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)	768	mmap_free (pTHX_ SV *sv, MAGIC *mg)
768	{	769	{
769	int old_errno = errno;	770	int old_errno = errno;
770	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	771	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
771	errno = old_errno;	772	errno = old_errno;
772		773
…		…
788	0, 0, 0, 0, mmap_free	789	0, 0, 0, 0, mmap_free
789	};	790	};
790		791
791	/*****************************************************************************/	792	/*****************************************************************************/
792		793
		794	static SV *
793	static SV * get_cb (SV *cb_sv)	795	get_cb (SV *cb_sv)
794	{	796	{
795	SvGETMAGIC (cb_sv);	797	SvGETMAGIC (cb_sv);
796	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	798	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797	}	799	}
798		800
		801	static aio_req ecb_noinline
		802	dreq (SV *callback)
		803	{
		804	SV *cb_cv;
		805	aio_req req;
		806	int req_pri = next_pri;
		807	next_pri = EIO_PRI_DEFAULT;
		808
		809	cb_cv = get_cb (callback);
		810
		811	req = calloc (sizeof (*req), 1);
		812	if (!req)
		813	croak ("out of memory during eio_req allocation");
		814
		815	req->callback = SvREFCNT_inc (cb_cv);
		816	req->pri = req_pri;
		817
		818	return req;
		819	}
		820
799	#define dREQ \	821	#define dREQ \
800	SV *cb_cv; \	822	aio_req req = dreq (callback); \
801	aio_req req; \
802	int req_pri = next_pri; \
803	next_pri = EIO_PRI_DEFAULT; \
804	\
805	cb_cv = get_cb (callback); \
806	\
807	Newz (0, req, 1, eio_req); \
808	if (!req) \
809	croak ("out of memory during eio_req allocation"); \
810	\
811	req->callback = SvREFCNT_inc (cb_cv); \
812	req->pri = req_pri
813		823
814	#define REQ_SEND \	824	#define REQ_SEND \
815	PUTBACK; \	825	PUTBACK; \
816	req_submit (req); \	826	req_submit (req); \
817	SPAGAIN; \	827	SPAGAIN; \
818	\	828	\
819	if (GIMME_V != G_VOID) \	829	if (GIMME_V != G_VOID) \
820	XPUSHs (req_sv (req, aio_req_stash));	830	XPUSHs (req_sv (req, aio_req_stash));
821		831
822	static void	832	ecb_inline void
823	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	833	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
824	{	834	{
825	if (expect_false (SvROK (path)))	835	if (expect_false (SvROK (path)))
826	{	836	{
827	AV *av = (AV *)SvRV (path);	837	SV *rv = SvRV (path);
828	SV *wdob;	838	SV *wdob;
829		839
830	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)	840	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
831	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
832
833	path = AvARRAY (av)[1];
834	wdob = AvARRAY (av)[0];
835
836	if (SvOK (wdob))
837	{	841	{
		842	path = AvARRAY (rv)[1];
		843	wdob = AvARRAY (rv)[0];
		844
		845	if (SvOK (wdob))
		846	{
838	*wd = SvAIO_WD (wdob);	847	*wd = SvAIO_WD (wdob);
839	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));	848	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		849	}
		850	else
		851	*wd = EIO_INVALID_WD;
		852	}
		853	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		854	{
		855	*wd = (aio_wd)(long)SvIVX (rv);
		856	*wdsv = SvREFCNT_inc_NN (rv);
		857	*ptr = ".";
		858	return; /* path set to "." */
840	}	859	}
841	else	860	else
842	*wd = EIO_INVALID_WD;	861	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
843	}	862	}
844		863
845	*pathsv = newSVsv (path);	864	*pathsv = newSVsv (path);
846	*ptr = SvPVbyte_nolen (*pathsv);	865	*ptr = SvPVbyte_nolen (*pathsv);
847	}	866	}
848		867
849	static void	868	static void ecb_noinline
850	req_set_path1 (aio_req req, SV *path)	869	req_set_path1 (aio_req req, SV *path)
851	{	870	{
852	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	871	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
853	}	872	}
854		873
855	static void	874	static void ecb_noinline
856	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	875	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
857	{	876	{
858	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	877	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
859		878
860	switch (SvTYPE (rv))	879	switch (SvTYPE (rv))
…		…
870	default:	889	default:
871	req->type = type_path;	890	req->type = type_path;
872	req_set_path1 (req, fh_or_path);	891	req_set_path1 (req, fh_or_path);
873	break;	892	break;
874	}	893	}
875
876	}	894	}
		895
		896	XS(boot_IO__AIO) ecb_cold;
877		897
878	MODULE = IO::AIO PACKAGE = IO::AIO	898	MODULE = IO::AIO PACKAGE = IO::AIO
879		899
880	PROTOTYPES: ENABLE	900	PROTOTYPES: ENABLE
881		901
…		…
886	IV iv;	906	IV iv;
887	} *civ, const_iv[] = {	907	} *civ, const_iv[] = {
888	# define const_niv(name, value) { # name, (IV) value },	908	# define const_niv(name, value) { # name, (IV) value },
889	# define const_iv(name) { # name, (IV) name },	909	# define const_iv(name) { # name, (IV) name },
890	# define const_eio(name) { # name, (IV) EIO_ ## name },	910	# define const_eio(name) { # name, (IV) EIO_ ## name },
		911
		912	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		913
		914	const_iv (ENOSYS)
891	const_iv (EXDEV)	915	const_iv (EXDEV)
892	const_iv (ENOSYS)	916	const_iv (EBADR)
		917
893	const_iv (O_RDONLY)	918	const_iv (O_RDONLY)
894	const_iv (O_WRONLY)	919	const_iv (O_WRONLY)
895	const_iv (O_RDWR)	920	const_iv (O_RDWR)
896	const_iv (O_CREAT)	921	const_iv (O_CREAT)
897	const_iv (O_TRUNC)	922	const_iv (O_TRUNC)
…		…
965	const_iv (MAP_LOCKED)	990	const_iv (MAP_LOCKED)
966	const_iv (MAP_NORESERVE)	991	const_iv (MAP_NORESERVE)
967	const_iv (MAP_POPULATE)	992	const_iv (MAP_POPULATE)
968	const_iv (MAP_NONBLOCK)	993	const_iv (MAP_NONBLOCK)
969		994
		995	const_iv (FIEMAP_FLAG_SYNC)
		996	const_iv (FIEMAP_FLAG_XATTR)
		997	const_iv (FIEMAP_FLAGS_COMPAT)
		998	const_iv (FIEMAP_EXTENT_LAST)
		999	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1000	const_iv (FIEMAP_EXTENT_DELALLOC)
		1001	const_iv (FIEMAP_EXTENT_ENCODED)
		1002	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1003	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1004	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1005	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1006	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1007	const_iv (FIEMAP_EXTENT_MERGED)
		1008	const_iv (FIEMAP_EXTENT_SHARED)
		1009
		1010	const_iv (SPLICE_F_MOVE)
		1011	const_iv (SPLICE_F_NONBLOCK)
		1012	const_iv (SPLICE_F_MORE)
		1013	const_iv (SPLICE_F_GIFT)
		1014
		1015	const_iv (SEEK_DATA)
		1016	const_iv (SEEK_HOLE)
		1017
		1018	/* libeio constants */
		1019	const_eio (SEEK_SET)
		1020	const_eio (SEEK_CUR)
		1021	const_eio (SEEK_END)
		1022
970	const_eio (MCL_FUTURE)	1023	const_eio (MCL_FUTURE)
971	const_eio (MCL_CURRENT)	1024	const_eio (MCL_CURRENT)
972		1025
973	const_eio (MS_ASYNC)	1026	const_eio (MS_ASYNC)
974	const_eio (MS_INVALIDATE)	1027	const_eio (MS_INVALIDATE)
…		…
979	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1032	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
980	const_eio (SYNC_FILE_RANGE_WRITE)	1033	const_eio (SYNC_FILE_RANGE_WRITE)
981	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1034	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
982		1035
983	const_eio (FALLOC_FL_KEEP_SIZE)	1036	const_eio (FALLOC_FL_KEEP_SIZE)
		1037	const_eio (FALLOC_FL_PUNCH_HOLE)
		1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1039	const_eio (FALLOC_FL_ZERO_RANGE)
984		1040
985	const_eio (READDIR_DENTS)	1041	const_eio (READDIR_DENTS)
986	const_eio (READDIR_DIRS_FIRST)	1042	const_eio (READDIR_DIRS_FIRST)
987	const_eio (READDIR_STAT_ORDER)	1043	const_eio (READDIR_STAT_ORDER)
988	const_eio (READDIR_FOUND_UNKNOWN)	1044	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1056	PROTOTYPE: $	1112	PROTOTYPE: $
1057	CODE:	1113	CODE:
1058	max_outstanding = maxreqs;	1114	max_outstanding = maxreqs;
1059		1115
1060	void	1116	void
1061	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1117	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1062	PPCODE:	1118	PPCODE:
1063	{	1119	{
1064	dREQ;	1120	dREQ;
1065		1121
1066	req->type = EIO_WD_OPEN;	1122	req->type = EIO_WD_OPEN;
…		…
1068		1124
1069	REQ_SEND;	1125	REQ_SEND;
1070	}	1126	}
1071		1127
1072	void	1128	void
1073	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1129	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1074	PPCODE:	1130	PPCODE:
1075	{	1131	{
1076	dREQ;	1132	dREQ;
1077		1133
1078	req->type = EIO_OPEN;	1134	req->type = EIO_OPEN;
…		…
1082		1138
1083	REQ_SEND;	1139	REQ_SEND;
1084	}	1140	}
1085		1141
1086	void	1142	void
1087	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1143	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1088	ALIAS:	1144	ALIAS:
1089	aio_fsync = EIO_FSYNC	1145	aio_fsync = EIO_FSYNC
1090	aio_fdatasync = EIO_FDATASYNC	1146	aio_fdatasync = EIO_FDATASYNC
1091	aio_syncfs = EIO_SYNCFS	1147	aio_syncfs = EIO_SYNCFS
1092	PPCODE:	1148	PPCODE:
1093	{	1149	{
1094	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
1095	dREQ;	1151	dREQ;
1096		1152
1097	req->type = ix;	1153	req->type = ix;
1098	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
1099	req->int1 = fd;	1155	req->int1 = fd;
1100		1156
1101	REQ_SEND (req);	1157	REQ_SEND;
1102	}	1158	}
1103		1159
1104	void	1160	void
1105	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1161	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1106	PPCODE:	1162	PPCODE:
1107	{	1163	{
1108	int fd = s_fileno_croak (fh, 0);	1164	int fd = s_fileno_croak (fh, 0);
1109	dREQ;	1165	dREQ;
1110		1166
1111	req->type = EIO_SYNC_FILE_RANGE;	1167	req->type = EIO_SYNC_FILE_RANGE;
1112	req->sv1 = newSVsv (fh);	1168	req->sv1 = newSVsv (fh);
1113	req->int1 = fd;	1169	req->int1 = fd;
1114	req->offs = offset;	1170	req->offs = offset;
1115	req->size = nbytes;	1171	req->size = nbytes;
1116	req->int2 = flags;	1172	req->int2 = flags;
1117		1173
1118	REQ_SEND (req);	1174	REQ_SEND;
1119	}	1175	}
1120		1176
1121	void	1177	void
1122	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1178	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1123	PPCODE:	1179	PPCODE:
1124	{	1180	{
1125	int fd = s_fileno_croak (fh, 0);	1181	int fd = s_fileno_croak (fh, 0);
1126	dREQ;	1182	dREQ;
1127		1183
1128	req->type = EIO_FALLOCATE;	1184	req->type = EIO_FALLOCATE;
1129	req->sv1 = newSVsv (fh);	1185	req->sv1 = newSVsv (fh);
1130	req->int1 = fd;	1186	req->int1 = fd;
1131	req->int2 = mode;	1187	req->int2 = mode;
1132	req->offs = offset;	1188	req->offs = offset;
1133	req->size = len;	1189	req->size = len;
1134		1190
1135	REQ_SEND (req);	1191	REQ_SEND;
1136	}	1192	}
1137		1193
1138	void	1194	void
1139	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1140	PPCODE:	1196	PPCODE:
1141	{	1197	{
1142	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1143	int fd = s_fileno_croak (fh, 0);	1199	int fd = s_fileno_croak (fh, 0);
1144	dREQ;	1200	dREQ;
1145		1201
1146	if (expect_false (close_fd < 0))	1202	if (expect_false (close_fd < 0))
1147	{	1203	{
1148	int pipefd [2];	1204	int pipefd [2];
…		…
1164	req->type = EIO_DUP2;	1220	req->type = EIO_DUP2;
1165	req->int1 = close_fd;	1221	req->int1 = close_fd;
1166	req->sv2 = newSVsv (fh);	1222	req->sv2 = newSVsv (fh);
1167	req->int2 = fd;	1223	req->int2 = fd;
1168		1224
1169	REQ_SEND (req);	1225	REQ_SEND;
1170	}	1226	}
1171		1227
1172	void	1228	void
		1229	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1230	PPCODE:
		1231	{
		1232	int fd = s_fileno_croak (fh, 0);
		1233	dREQ;
		1234
		1235	req->type = EIO_SEEK;
		1236	req->sv1 = newSVsv (fh);
		1237	req->int1 = fd;
		1238	req->offs = SvVAL64 (offset);
		1239	req->int2 = whence;
		1240
		1241	REQ_SEND;
		1242	}
		1243
		1244	void
1173	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1245	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1174	ALIAS:	1246	ALIAS:
1175	aio_read = EIO_READ	1247	aio_read = EIO_READ
1176	aio_write = EIO_WRITE	1248	aio_write = EIO_WRITE
1177	PPCODE:	1249	PPCODE:
1178	{	1250	{
…		…
1194	len = svlen - dataoffset;	1266	len = svlen - dataoffset;
1195	}	1267	}
1196	else	1268	else
1197	{	1269	{
1198	/* read: check type and grow scalar as necessary */	1270	/* read: check type and grow scalar as necessary */
1199	SvUPGRADE (data, SVt_PV);	1271	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1200	svptr = SvGROW (data, len + dataoffset + 1);	1272	svptr = sv_grow (data, len + dataoffset + 1);
		1273	else if (SvCUR (data) < len + dataoffset)
		1274	croak ("length + dataoffset outside of scalar, and cannot grow");
1201	}	1275	}
1202		1276
1203	{	1277	{
1204	dREQ;	1278	dREQ;
1205		1279
…		…
1221	REQ_SEND;	1295	REQ_SEND;
1222	}	1296	}
1223	}	1297	}
1224		1298
1225	void	1299	void
1226	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1227	ALIAS:	1301	ALIAS:
1228	aio_readlink = EIO_READLINK	1302	aio_readlink = EIO_READLINK
1229	aio_realpath = EIO_REALPATH	1303	aio_realpath = EIO_REALPATH
1230	PPCODE:	1304	PPCODE:
1231	{	1305	{
…		…
1236		1310
1237	REQ_SEND;	1311	REQ_SEND;
1238	}	1312	}
1239		1313
1240	void	1314	void
1241	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1315	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1242	PPCODE:	1316	PPCODE:
1243	{	1317	{
1244	int ifd = s_fileno_croak (in_fh , 0);	1318	int ifd = s_fileno_croak (in_fh , 0);
1245	int ofd = s_fileno_croak (out_fh, 1);	1319	int ofd = s_fileno_croak (out_fh, 1);
1246	dREQ;	1320	dREQ;
1247		1321
1248	req->type = EIO_SENDFILE;	1322	req->type = EIO_SENDFILE;
1249	req->sv1 = newSVsv (out_fh);	1323	req->sv1 = newSVsv (out_fh);
1250	req->int1 = ofd;	1324	req->int1 = ofd;
…		…
1255		1329
1256	REQ_SEND;	1330	REQ_SEND;
1257	}	1331	}
1258		1332
1259	void	1333	void
1260	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1334	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1261	PPCODE:	1335	PPCODE:
1262	{	1336	{
1263	int fd = s_fileno_croak (fh, 0);	1337	int fd = s_fileno_croak (fh, 0);
1264	dREQ;	1338	dREQ;
1265		1339
1266	req->type = EIO_READAHEAD;	1340	req->type = EIO_READAHEAD;
1267	req->sv1 = newSVsv (fh);	1341	req->sv1 = newSVsv (fh);
1268	req->int1 = fd;	1342	req->int1 = fd;
…		…
1271		1345
1272	REQ_SEND;	1346	REQ_SEND;
1273	}	1347	}
1274		1348
1275	void	1349	void
1276	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1350	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1277	ALIAS:	1351	ALIAS:
1278	aio_stat = EIO_STAT	1352	aio_stat = EIO_STAT
1279	aio_lstat = EIO_LSTAT	1353	aio_lstat = EIO_LSTAT
1280	aio_statvfs = EIO_STATVFS	1354	aio_statvfs = EIO_STATVFS
1281	PPCODE:	1355	PPCODE:
1282	{	1356	{
1283	dREQ;	1357	dREQ;
1284		1358
1285	req->sv1 = newSVsv (fh_or_path);
1286	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
		1360
1287	REQ_SEND;	1361	REQ_SEND;
1288	}	1362	}
1289		1363
1290	UV	1364	UV
1291	major (UV dev)	1365	major (UV dev)
…		…
1302	RETVAL = makedev (maj, min);	1376	RETVAL = makedev (maj, min);
1303	OUTPUT:	1377	OUTPUT:
1304	RETVAL	1378	RETVAL
1305		1379
1306	void	1380	void
1307	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1381	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1308	PPCODE:	1382	PPCODE:
1309	{	1383	{
1310	dREQ;	1384	dREQ;
1311		1385
1312	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1386	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1315		1389
1316	REQ_SEND;	1390	REQ_SEND;
1317	}	1391	}
1318		1392
1319	void	1393	void
1320	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1394	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1321	PPCODE:	1395	PPCODE:
1322	{	1396	{
1323	dREQ;	1397	dREQ;
1324		1398
1325	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1399	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1327		1401
1328	REQ_SEND;	1402	REQ_SEND;
1329	}	1403	}
1330		1404
1331	void	1405	void
1332	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1406	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1333	PPCODE:	1407	PPCODE:
1334	{	1408	{
1335	dREQ;	1409	dREQ;
1336		1410
1337	req->int2 = mode;	1411	req->int2 = mode;
…		…
1339		1413
1340	REQ_SEND;	1414	REQ_SEND;
1341	}	1415	}
1342		1416
1343	void	1417	void
1344	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1418	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1345	PPCODE:	1419	PPCODE:
1346	{	1420	{
1347	dREQ;	1421	dREQ;
1348		1422
1349	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1423	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1352		1426
1353	REQ_SEND;	1427	REQ_SEND;
1354	}	1428	}
1355		1429
1356	void	1430	void
1357	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1431	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1358	PPCODE:	1432	PPCODE:
1359	{	1433	{
1360	dREQ;	1434	dREQ;
1361		1435
1362	req->type = EIO_READDIR;	1436	req->type = EIO_READDIR;
…		…
1369		1443
1370	REQ_SEND;	1444	REQ_SEND;
1371	}	1445	}
1372		1446
1373	void	1447	void
1374	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1448	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1375	PPCODE:	1449	PPCODE:
1376	{	1450	{
1377	dREQ;	1451	dREQ;
1378		1452
1379	req->type = EIO_MKDIR;	1453	req->type = EIO_MKDIR;
…		…
1382		1456
1383	REQ_SEND;	1457	REQ_SEND;
1384	}	1458	}
1385		1459
1386	void	1460	void
1387	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1461	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1388	ALIAS:	1462	ALIAS:
1389	aio_unlink = EIO_UNLINK	1463	aio_unlink = EIO_UNLINK
1390	aio_rmdir = EIO_RMDIR	1464	aio_rmdir = EIO_RMDIR
1391	aio_readdir = EIO_READDIR	1465	aio_readdir = EIO_READDIR
1392	PPCODE:	1466	PPCODE:
…		…
1398		1472
1399	REQ_SEND;	1473	REQ_SEND;
1400	}	1474	}
1401		1475
1402	void	1476	void
1403	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1477	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1404	ALIAS:	1478	ALIAS:
1405	aio_link = EIO_LINK	1479	aio_link = EIO_LINK
1406	aio_symlink = EIO_SYMLINK	1480	aio_symlink = EIO_SYMLINK
1407	aio_rename = EIO_RENAME	1481	aio_rename = EIO_RENAME
1408	PPCODE:	1482	PPCODE:
1409	{	1483	{
		1484	eio_wd wd2 = 0;
1410	dREQ;	1485	dREQ;
1411	eio_wd wd2 = 0;
1412		1486
1413	req->type = ix;	1487	req->type = ix;
1414	req_set_path1 (req, oldpath);	1488	req_set_path1 (req, oldpath);
1415	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1416	req->int3 = (long)wd2;	1490	req->int3 = (long)wd2;
1417		1491
1418	REQ_SEND;	1492	REQ_SEND;
1419	}	1493	}
1420		1494
1421	void	1495	void
1422	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1496	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1423	PPCODE:	1497	PPCODE:
1424	{	1498	{
1425	dREQ;	1499	dREQ;
1426		1500
1427	req->type = EIO_MKNOD;	1501	req->type = EIO_MKNOD;
…		…
1431		1505
1432	REQ_SEND;	1506	REQ_SEND;
1433	}	1507	}
1434		1508
1435	void	1509	void
1436	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1437	ALIAS:	1511	ALIAS:
1438	aio_mtouch = EIO_MTOUCH	1512	aio_mtouch = EIO_MTOUCH
1439	aio_msync = EIO_MSYNC	1513	aio_msync = EIO_MSYNC
1440	PPCODE:	1514	PPCODE:
1441	{	1515	{
…		…
1464	REQ_SEND;	1538	REQ_SEND;
1465	}	1539	}
1466	}	1540	}
1467		1541
1468	void	1542	void
1469	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1543	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1470	PPCODE:	1544	PPCODE:
1471	{	1545	{
1472	STRLEN svlen;	1546	STRLEN svlen;
1473	char *svptr = SvPVbyte (data, svlen);	1547	char *svptr = SvPVbyte (data, svlen);
1474	UV len = SvUV (length);	1548	UV len = SvUV (length);
…		…
1493	REQ_SEND;	1567	REQ_SEND;
1494	}	1568	}
1495	}	1569	}
1496		1570
1497	void	1571	void
1498	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1572	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1499	PPCODE:	1573	PPCODE:
1500	{	1574	{
1501	dREQ;	1575	dREQ;
1502		1576
1503	req->type = EIO_MLOCKALL;	1577	req->type = EIO_MLOCKALL;
…		…
1505		1579
1506	REQ_SEND;	1580	REQ_SEND;
1507	}	1581	}
1508		1582
1509	void	1583	void
		1584	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1585	PPCODE:
		1586	{
		1587	int fd = s_fileno_croak (fh, 0);
		1588	dREQ;
		1589
		1590	req->type = EIO_CUSTOM;
		1591	req->sv1 = newSVsv (fh);
		1592	req->int1 = fd;
		1593
		1594	req->feed = fiemap;
		1595	#if HAVE_FIEMAP
		1596	/* keep our fingers crossed that the next two types are 64 bit */
		1597	req->offs = start;
		1598	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1599	req->int2 = flags;
		1600	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1601	#endif
		1602
		1603	REQ_SEND;
		1604	}
		1605
		1606	void
1510	aio_busy (double delay, SV *callback=&PL_sv_undef)	1607	aio_busy (double delay, SV *callback = &PL_sv_undef)
1511	PPCODE:	1608	PPCODE:
1512	{	1609	{
1513	dREQ;	1610	dREQ;
1514		1611
1515	req->type = EIO_BUSY;	1612	req->type = EIO_BUSY;
…		…
1517		1614
1518	REQ_SEND;	1615	REQ_SEND;
1519	}	1616	}
1520		1617
1521	void	1618	void
1522	aio_group (SV *callback=&PL_sv_undef)	1619	aio_group (SV *callback = &PL_sv_undef)
1523	PPCODE:	1620	PPCODE:
1524	{	1621	{
1525	dREQ;	1622	dREQ;
1526		1623
1527	req->type = EIO_GROUP;	1624	req->type = EIO_GROUP;
1528		1625
		1626	PUTBACK;
1529	req_submit (req);	1627	req_submit (req);
		1628	SPAGAIN;
		1629
1530	XPUSHs (req_sv (req, aio_grp_stash));	1630	XPUSHs (req_sv (req, aio_grp_stash));
1531	}	1631	}
1532		1632
1533	void	1633	void
1534	aio_nop (SV *callback=&PL_sv_undef)	1634	aio_nop (SV *callback = &PL_sv_undef)
1535	ALIAS:	1635	ALIAS:
1536	aio_nop = EIO_NOP	1636	aio_nop = EIO_NOP
1537	aio_sync = EIO_SYNC	1637	aio_sync = EIO_SYNC
1538	PPCODE:	1638	PPCODE:
1539	{	1639	{
…		…
1543		1643
1544	REQ_SEND;	1644	REQ_SEND;
1545	}	1645	}
1546		1646
1547	int	1647	int
1548	aioreq_pri (int pri = 0)	1648	aioreq_pri (int pri = NO_INIT)
1549	CODE:	1649	CODE:
1550	RETVAL = next_pri;	1650	RETVAL = next_pri;
1551	if (items > 0)	1651	if (items > 0)
1552	{	1652	{
1553	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1653	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1643	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1743	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1644	OUTPUT:	1744	OUTPUT:
1645	RETVAL	1745	RETVAL
1646		1746
1647	void	1747	void
1648	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1649	PPCODE:	1749	PPCODE:
1650	sv_unmagic (scalar, MMAP_MAGIC);	1750	sv_unmagic (scalar, MMAP_MAGIC);
1651	{	1751	{
1652	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1653	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1680	munmap (SV *scalar)	1780	munmap (SV *scalar)
1681	CODE:	1781	CODE:
1682	sv_unmagic (scalar, MMAP_MAGIC);	1782	sv_unmagic (scalar, MMAP_MAGIC);
1683		1783
1684	int	1784	int
1685	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1686	ALIAS:	1786	ALIAS:
1687	mprotect = 1	1787	mprotect = 1
1688	CODE:	1788	CODE:
1689	{	1789	{
1690	STRLEN svlen;	1790	STRLEN svlen;
1691	void *addr = SvPVbyte (scalar, svlen);	1791	void *addr = SvPVbyte (scalar, svlen);
1692	size_t len = SvUV (length);	1792	STRLEN len = SvUV (length);
1693		1793
1694	if (offset < 0)	1794	if (offset < 0)
1695	offset += svlen;	1795	offset += svlen;
1696		1796
1697	if (offset < 0 || offset > svlen)	1797	if (offset < 0 || offset > svlen)
…		…
1711	}	1811	}
1712	OUTPUT:	1812	OUTPUT:
1713	RETVAL	1813	RETVAL
1714		1814
1715	int	1815	int
1716	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1717	CODE:	1817	CODE:
1718	{	1818	{
1719	STRLEN svlen;	1819	STRLEN svlen;
1720	void *addr = SvPVbyte (scalar, svlen);	1820	void *addr = SvPVbyte (scalar, svlen);
1721	size_t len = SvUV (length);	1821	size_t len = SvUV (length);
1722		1822
1723	if (offset < 0)	1823	if (offset < 0)
1724	offset += svlen;	1824	offset += svlen;
1725		1825
…		…
1732	addr = (void *)(((intptr_t)addr) + offset);	1832	addr = (void *)(((intptr_t)addr) + offset);
1733	eio_page_align (&addr, &len);	1833	eio_page_align (&addr, &len);
1734	#if _POSIX_MEMLOCK_RANGE	1834	#if _POSIX_MEMLOCK_RANGE
1735	RETVAL = munlock (addr, len);	1835	RETVAL = munlock (addr, len);
1736	#else	1836	#else
1737	RETVAL = ((errno = ENOSYS), -1);	1837	RETVAL = EIO_ENOSYS ();
1738	#endif	1838	#endif
1739	}	1839	}
1740	OUTPUT:	1840	OUTPUT:
1741	RETVAL	1841	RETVAL
1742		1842
…		…
1744	munlockall ()	1844	munlockall ()
1745	CODE:	1845	CODE:
1746	#if _POSIX_MEMLOCK	1846	#if _POSIX_MEMLOCK
1747	munlockall ();	1847	munlockall ();
1748	#else	1848	#else
		1849	RETVAL = EIO_ENOSYS ();
		1850	#endif
		1851	OUTPUT:
		1852	RETVAL
		1853
		1854	int
		1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1856	CODE:
		1857	{
		1858	#if HAVE_LINUX_SPLICE
		1859	loff_t off_in_, off_out_;
		1860	RETVAL = splice (
		1861	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1862	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1863	length, flags
		1864	);
		1865	#else
		1866	RETVAL = EIO_ENOSYS ();
		1867	#endif
		1868	}
		1869	OUTPUT:
		1870	RETVAL
		1871
		1872	int
		1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1874	CODE:
		1875	#if HAVE_LINUX_SPLICE
		1876	RETVAL = tee (rfh, wfh, length, flags);
		1877	#else
		1878	RETVAL = EIO_ENOSYS ();
		1879	#endif
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int
		1884	pipesize (aio_rfd rfh, int new_size = -1)
		1885	PROTOTYPE: $;$
		1886	CODE:
		1887	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1888	if (new_size >= 0)
		1889	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1890	else
		1891	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1892	#else
		1893	errno = ENOSYS;
1749	RETVAL = -1;	1894	RETVAL = -1;
1750	errno = ENOSYS;
1751	#endif	1895	#endif
1752	OUTPUT:	1896	OUTPUT:
1753	RETVAL	1897	RETVAL
1754		1898
1755	void _on_next_submit (SV *cb)	1899	void _on_next_submit (SV *cb)
…		…
1771	DESTROY (SV *self)	1915	DESTROY (SV *self)
1772	CODE:	1916	CODE:
1773	{	1917	{
1774	aio_wd wd = SvAIO_WD (self);	1918	aio_wd wd = SvAIO_WD (self);
1775	#if HAVE_AT	1919	#if HAVE_AT
		1920	{
1776	SV *callback = &PL_sv_undef;	1921	SV *callback = &PL_sv_undef;
1777	dREQ; /* clobbers next_pri :/ */	1922	dREQ; /* clobbers next_pri :/ */
		1923	next_pri = req->pri; /* restore next_pri */
		1924	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1778	req->type = EIO_WD_CLOSE;	1925	req->type = EIO_WD_CLOSE;
1779	req->wd = wd;	1926	req->wd = wd;
1780	REQ_SEND;	1927	REQ_SEND;
		1928	}
1781	#else	1929	#else
1782	eio_wd_close_sync (wd);	1930	eio_wd_close_sync (wd);
1783	#endif	1931	#endif
1784	}	1932	}
1785		1933
…		…
1789	cancel (aio_req_ornot req)	1937	cancel (aio_req_ornot req)
1790	CODE:	1938	CODE:
1791	eio_cancel (req);	1939	eio_cancel (req);
1792		1940
1793	void	1941	void
1794	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1942	cb (aio_req_ornot req, SV *callback = NO_INIT)
1795	PPCODE:	1943	PPCODE:
1796	{	1944	{
1797	if (GIMME_V != G_VOID)	1945	if (GIMME_V != G_VOID)
1798	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1946	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1799		1947
1800	if (items > 1)	1948	if (items > 1)
1801	{	1949	{
1802	SV *cb_cv =get_cb (callback);	1950	SV *cb_cv = get_cb (callback);
1803		1951
1804	SvREFCNT_dec (req->callback);	1952	SvREFCNT_dec (req->callback);
1805	req->callback = SvREFCNT_inc (cb_cv);	1953	req->callback = SvREFCNT_inc (cb_cv);
1806	}	1954	}
1807	}	1955	}
…		…
1864	limit (aio_req grp, int limit)	2012	limit (aio_req grp, int limit)
1865	CODE:	2013	CODE:
1866	eio_grp_limit (grp, limit);	2014	eio_grp_limit (grp, limit);
1867		2015
1868	void	2016	void
1869	feed (aio_req grp, SV *callback=&PL_sv_undef)	2017	feed (aio_req grp, SV *callback = &PL_sv_undef)
1870	CODE:	2018	CODE:
1871	{	2019	{
1872	SvREFCNT_dec (grp->sv2);	2020	SvREFCNT_dec (grp->sv2);
1873	grp->sv2 = newSVsv (callback);	2021	grp->sv2 = newSVsv (callback);
1874	grp->feed = aio_grp_feed;	2022	grp->feed = aio_grp_feed;

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