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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.154 by root, Wed Jul 15 01:39:15 2009 UTC vs.
Revision 1.248 by root, Fri Jun 23 22:33:06 2017 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
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
		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. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
		36	#endif
		37
20	/* perl namespace pollution */	38	/* perl namespace pollution */
21	#undef VERSION	39	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		40
72	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	43	#undef readdir
75	#undef opendir	44	#undef opendir
76	#undef closedir	45	#undef closedir
77		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		81	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
79		83
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	84	#else
86	# define VAL64 NV	85
87	# define SvVAL64 SvNV	86	#include <sys/time.h>
88	# define newSVval64 newSVnv	87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
89	#endif	94	#endif
90		95
91	/*****************************************************************************/	96	/*****************************************************************************/
92		97
93	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
101		106
102	/*****************************************************************************/	107	/*****************************************************************************/
103		108
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	110	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	111	typedef int aio_wfd; /* write file descriptor */
108		112
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		114
112	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
113	SV *callback; \	116	SV *callback; \
114	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
		118	SV *sv3, *sv4; \
115	STRLEN stroffset; \	119	STRLEN stroffset; \
116	SV *self;	120	SV *self;
117		121
118	#define EIO_NO_WRAPPERS 1	122	#define EIO_NO_WRAPPERS 1
119		123
		124	#include "libeio/config.h"
120	#include "libeio/eio.h"	125	#include "libeio/eio.h"
121
122	#ifndef POSIX_FADV_NORMAL
123	# define POSIX_FADV_NORMAL 0
124	# define NO_FADVISE 1
125	#endif
126
127	#ifndef POSIX_FADV_SEQUENTIAL
128	# define POSIX_FADV_SEQUENTIAL 0
129	#endif
130
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138
139	#ifndef POSIX_FADV_WILLNEED
140	# define POSIX_FADV_WILLNEED 0
141	#endif
142
143	#ifndef POSIX_FADV_DONTNEED
144	# define POSIX_FADV_DONTNEED 0
145	#endif
146		126
147	static int req_invoke (eio_req *req);	127	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	128	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	129	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	130	#define EIO_DESTROY(req) req_destroy (req)
151		131
		132	#include "libeio/eio.c"
		133
		134	#if !HAVE_POSIX_FADVISE
		135	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		136	#endif
		137
		138	#if !HAVE_POSIX_MADVISE
		139	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		140	#endif
		141
		142	#ifndef MAP_ANONYMOUS
		143	# ifdef MAP_ANON
		144	# define MAP_ANONYMOUS MAP_ANON
		145	# else
		146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		147	# endif
		148	#endif
		149
		150	/* defines all sorts of constants to 0 unless they are already defined */
		151	/* also provides const_iv_ and const_niv_ macros for them */
		152	#include "def0.h"
		153
		154	#ifndef makedev
		155	# define makedev(maj,min) (((maj) << 8) | (min))
		156	#endif
		157	#ifndef major
		158	# define major(dev) ((dev) >> 8)
		159	#endif
		160	#ifndef minor
		161	# define minor(dev) ((dev) & 0xff)
		162	#endif
		163
		164	#if PAGESIZE <= 0
		165	# define PAGESIZE sysconf (_SC_PAGESIZE)
		166	#endif
		167
		168	/*****************************************************************************/
		169
		170	static void
		171	fiemap (eio_req *req)
		172	{
		173	req->result = -1;
		174
		175	#if HAVE_FIEMAP
		176	/* assume some c99 */
		177	struct fiemap *fiemap = 0;
		178	size_t end_offset;
		179	int count = req->int3;
		180
		181	req->flags |= EIO_FLAG_PTR1_FREE;
		182
		183	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		184	/* increase in 3.5kb steps */
		185	if (count < 0)
		186	count = 8;
		187
		188	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194
		195	fiemap->fm_start = req->offs;
		196	fiemap->fm_length = req->size;
		197	fiemap->fm_flags = req->int2;
		198	fiemap->fm_extent_count = count;
		199
		200	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		201	return;
		202
		203	if (req->int3 >= 0 /* not autosizing */
		204	|| !fiemap->fm_mapped_extents /* no more extents */
		205	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		206	goto done;
		207
		208	/* else we have to loop -
		209	* it would be tempting (actually I tried that first) to just query the
		210	* number of extents needed, but linux often feels like not returning all
		211	* extents, without telling us it left any out. this complicates
		212	* this quite a bit.
		213	*/
		214
		215	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		216
		217	for (;;)
		218	{
		219	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		220	char scratch[3072];
		221	struct fiemap *incmap = (struct fiemap *)scratch;
		222
		223	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		224	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		225	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		226	incmap->fm_flags = fiemap->fm_flags;
		227	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		228
		229	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		230	return;
		231
		232	if (!incmap->fm_mapped_extents)
		233	goto done;
		234
		235	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		236	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		237	errno = ENOMEM;
		238	if (!fiemap)
		239	return;
		240
		241	req->ptr1 = fiemap;
		242
		243	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		244	{
		245	struct fiemap_extent *e = incmap->fm_extents + count;
		246
		247	if (e->fe_logical + e->fe_length >= end_offset)
		248	goto done;
		249
		250	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		251
		252	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		253	goto done;
		254
		255	}
		256	}
		257
		258	done:
		259	req->result = 0;
		260
		261	#else
		262	errno = ENOSYS;
		263	#endif
		264	}
		265
		266	/*****************************************************************************/
		267
152	enum {	268	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	269	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	270	};
155		271
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	272	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	273	typedef eio_req *aio_req_ornot;
		274	typedef eio_wd aio_wd;
160		275
161	static SV *on_next_submit;	276	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	277	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	278	static int max_outstanding;
164		279
165	static s_epipe respipe;	280	static s_epipe respipe;
166		281
167	static void req_destroy (aio_req req);	282	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	283	static void req_cancel (aio_req req);
169		284
170	static void want_poll (void)	285	static void
		286	want_poll (void)
171	{	287	{
172	/* write a dummy byte to the pipe so fh becomes ready */	288	/* write a dummy byte to the pipe so fh becomes ready */
173	s_epipe_signal (&respipe);	289	s_epipe_signal (&respipe);
174	}	290	}
175		291
176	static void done_poll (void)	292	static void
		293	done_poll (void)
177	{	294	{
178	/* read any signals sent by the worker threads */	295	/* read any signals sent by the worker threads */
179	s_epipe_drain (&respipe);	296	s_epipe_drain (&respipe);
180	}	297	}
181		298
182	/* must be called at most once */	299	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	300	static SV *
		301	req_sv (aio_req req, HV *stash)
184	{	302	{
185	if (!req->self)	303	if (!req->self)
186	{	304	{
187	req->self = (SV *)newHV ();	305	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	306	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	307	}
190		308
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	309	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	310	}
193		311
194	static aio_req SvAIO_REQ (SV *sv)	312	static SV *
		313	newSVaio_wd (aio_wd wd)
		314	{
		315	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		316	}
		317
		318	static aio_req
		319	SvAIO_REQ (SV *sv)
195	{	320	{
196	MAGIC *mg;	321	MAGIC *mg;
197		322
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	323	if (!SvROK (sv)
		324	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		325	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		326	&& SvSTASH (SvRV (sv)) != aio_req_stash
		327	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	328	croak ("object of class IO::AIO::REQ expected");
200		329
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	330	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		331
203	return mg ? (aio_req)mg->mg_ptr : 0;	332	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	333	}
205		334
		335	static aio_wd
		336	SvAIO_WD (SV *sv)
		337	{
		338	if (!SvROK (sv)
		339	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		340	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		341	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		342
		343	return (aio_wd)(long)SvIVX (SvRV (sv));
		344	}
		345
		346	static SV *
		347	newmortalFH (int fd, int flags)
		348	{
		349	if (fd < 0)
		350	return &PL_sv_undef;
		351
		352	GV *gv = (GV *)sv_newmortal ();
		353	char sym[64];
		354	int symlen;
		355
		356	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		357	gv_init (gv, aio_stash, sym, symlen, 0);
		358
		359	symlen = snprintf (
		360	sym,
		361	sizeof (sym),
		362	"%s&=%d",
		363	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		364	fd
		365	);
		366
		367	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		368	? (SV *)gv : &PL_sv_undef;
		369	}
		370
		371	static void
206	static void aio_grp_feed (aio_req grp)	372	aio_grp_feed (aio_req grp)
207	{	373	{
208	if (grp->sv2 && SvOK (grp->sv2))	374	if (grp->sv2 && SvOK (grp->sv2))
209	{	375	{
210	dSP;	376	dSP;
211		377
212	ENTER;	378	ENTER;
213	SAVETMPS;	379	SAVETMPS;
214	PUSHMARK (SP);	380	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	381	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	382	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	383	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	384	SPAGAIN;
219	FREETMPS;	385	FREETMPS;
220	LEAVE;	386	LEAVE;
221	}	387	}
222	}	388	}
223		389
		390	static void
224	static void req_submit (eio_req *req)	391	req_submit (eio_req *req)
225	{	392	{
226	eio_submit (req);	393	eio_submit (req);
227		394
228	if (expect_false (on_next_submit))	395	if (expect_false (on_next_submit))
229	{	396	{
…		…
236	PUTBACK;	403	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	404	call_sv (cb, G_DISCARD | G_EVAL);
238	}	405	}
239	}	406	}
240		407
		408	static int
241	static int req_invoke (eio_req *req)	409	req_invoke (eio_req *req)
242	{	410	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	411	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	412	SvREADONLY_off (req->sv2);
247		413
248	if (!EIO_CANCELLED (req) && req->callback)	414	if (!EIO_CANCELLED (req) && req->callback)
249	{	415	{
		416	dSP;
		417	static SV *sv_result_cache; /* caches the result integer SV */
		418	SV *sv_result;
		419
250	ENTER;	420	ENTER;
251	SAVETMPS;	421	SAVETMPS;
252	PUSHMARK (SP);	422	PUSHMARK (SP);
253	EXTEND (SP, 1);	423	EXTEND (SP, 1);
254		424
		425	/* do not recreate the result IV from scratch each time */
		426	if (expect_true (sv_result_cache))
		427	{
		428	sv_result = sv_result_cache; sv_result_cache = 0;
		429	SvIV_set (sv_result, req->result);
		430	SvIOK_only (sv_result);
		431	}
		432	else
		433	{
		434	sv_result = newSViv (req->result);
		435	SvREADONLY_on (sv_result);
		436	}
		437
255	switch (req->type)	438	switch (req->type)
256	{	439	{
		440	case EIO_WD_OPEN:
		441	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		442	break;
		443
257	case EIO_READDIR:	444	case EIO_READDIR:
258	{	445	{
259	SV *rv = &PL_sv_undef;	446	SV *rv = &PL_sv_undef;
260		447
261	if (req->result >= 0)	448	if (req->result >= 0)
…		…
314	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	501	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
315	}	502	}
316	break;	503	break;
317		504
318	case EIO_OPEN:	505	case EIO_OPEN:
		506	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		507	break;
		508
		509	case EIO_STATVFS:
		510	case EIO_FSTATVFS:
319	{	511	{
320	/* convert fd to fh */
321	SV *fh = &PL_sv_undef;	512	SV *rv = &PL_sv_undef;
322		513
		514	#ifndef _WIN32
323	if (req->result >= 0)	515	if (req->result >= 0)
324	{	516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
325	GV *gv = (GV *)sv_newmortal ();	518	HV *hv = newHV ();
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
327	char sym [64];	520	* chooses to make it a struct.
328	int symlen;
329		521	*/
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	522	unsigned long fsid = 0;
331	gv_init (gv, stash, sym, symlen, 0);	523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
332		524
333	symlen = snprintf (	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
334	sym,
335	sizeof (sym),
336	"%s&=%d",
337	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
338	(int)req->result
339	);
340		526
341	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
342	fh = (SV *)gv;	528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		529	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
343	}	538	}
		539	#endif
344		540
345	PUSHs (fh);	541	PUSHs (rv);
346	}	542	}
		543
347	break;	544	break;
348		545
349	case EIO_GROUP:	546	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
351		548
…		…
363	case EIO_NOP:	560	case EIO_NOP:
364	case EIO_BUSY:	561	case EIO_BUSY:
365	break;	562	break;
366		563
367	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
368	if (req->result > 0)	566	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	568	break;
371		569
372	case EIO_STAT:	570	case EIO_STAT:
373	case EIO_LSTAT:	571	case EIO_LSTAT:
374	case EIO_FSTAT:	572	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
376	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
		580	break;
		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
379	break;	584	break;
380		585
381	case EIO_READ:	586	case EIO_READ:
382	{	587	{
383	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));
384	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	590	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	591	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
388	}	593	}
389	break;	594	break;
390		595
391	case EIO_DUP2:	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
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	637	if (req->result > 0)
393	req->result = 0;	638	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	639	/* FALLTHROUGH */
395		640
396	default:	641	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
398	break;	643	break;
399	}	644	}
400		645
401	errno = req->errorno;	646	errno = req->errorno;
402		647
403	PUTBACK;	648	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	650	SPAGAIN;
406		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
407	FREETMPS;	657	FREETMPS;
408	LEAVE;	658	LEAVE;
409		659
410	PUTBACK;	660	PUTBACK;
411	}	661	}
412		662
413	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
414	}	664	}
415		665
		666	static void
416	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
417	{	668	{
418	if (req->self)	669	if (req->self)
419	{	670	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
422	}	673	}
423		674
424	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
427		680
428	Safefree (req);	681	free (req);
429	}	682	}
430		683
		684	static void
431	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
432	{	686	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
436	return;	688	return;
437		689
438	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	691	grp->sv2 = 0;
440		692
441	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
442	}	694	}
443		695
		696	static void ecb_cold
		697	create_respipe (void)
		698	{
		699	if (s_epipe_renew (&respipe))
		700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
		702
444	static void	703	static void
445	create_respipe (void)	704	poll_wait (void)
446	{
447	if (s_epipe_renew (&respipe))
448	croak ("unable to initialize result pipe");
449	}
450
451	static void poll_wait (void)
452	{	705	{
453	while (eio_nreqs ())	706	while (eio_nreqs ())
454	{	707	{
455	int size;	708	int size;
456		709
457	X_LOCK (reslock);	710	X_LOCK (EIO_POOL->reslock);
458	size = res_queue.size;	711	size = EIO_POOL->res_queue.size;
459	X_UNLOCK (reslock);	712	X_UNLOCK (EIO_POOL->reslock);
460		713
461	if (size)	714	if (size)
462	return;	715	return;
463		716
464	etp_maybe_start_thread ();	717	etp_maybe_start_thread (EIO_POOL);
465		718
466	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
467	}	720	}
468	}	721	}
469		722
470	static int poll_cb (void)	723	static int
		724	poll_cb (void)
471	{	725	{
472	for (;;)	726	for (;;)
473	{	727	{
474	int res = eio_poll ();	728	int res = eio_poll ();
475		729
…		…
481		735
482	poll_wait ();	736	poll_wait ();
483	}	737	}
484	}	738	}
485		739
486	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
487	{	742	{
488	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
489	}	747	}
		748
		749	/*****************************************************************************/
		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	#endif
		759
		760	#define MMAP_MAGIC PERL_MAGIC_ext
		761
		762	static int ecb_cold
		763	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		764	{
		765	int old_errno = errno;
		766	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		767	errno = old_errno;
		768
		769	mg->mg_obj = 0; /* just in case */
		770
		771	SvREADONLY_off (sv);
		772
		773	if (SvPVX (sv) != mg->mg_ptr)
		774	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		775
		776	SvCUR_set (sv, 0);
		777	SvPVX (sv) = 0;
		778	SvOK_off (sv);
		779
		780	return 0;
		781	}
		782
		783	static MGVTBL mmap_vtbl = {
		784	0, 0, 0, 0, mmap_free
		785	};
		786
		787	/*****************************************************************************/
490		788
491	static SV *	789	static SV *
492	get_cb (SV *cb_sv)	790	get_cb (SV *cb_sv)
493	{	791	{
494	SvGETMAGIC (cb_sv);	792	SvGETMAGIC (cb_sv);
495	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	793	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
496	}	794	}
497		795
		796	static aio_req ecb_noinline
		797	dreq (SV *callback)
		798	{
		799	SV *cb_cv;
		800	aio_req req;
		801	int req_pri = next_pri;
		802	next_pri = EIO_PRI_DEFAULT;
		803
		804	cb_cv = get_cb (callback);
		805
		806	req = calloc (sizeof (*req), 1);
		807	if (!req)
		808	croak ("out of memory during eio_req allocation");
		809
		810	req->callback = SvREFCNT_inc (cb_cv);
		811	req->pri = req_pri;
		812
		813	return req;
		814	}
		815
498	#define dREQ \	816	#define dREQ \
499	SV *cb_cv; \	817	aio_req req = dreq (callback); \
500	aio_req req; \
501	int req_pri = next_pri; \
502	next_pri = EIO_PRI_DEFAULT; \
503	\
504	cb_cv = get_cb (callback); \
505	\
506	Newz (0, req, 1, eio_req); \
507	if (!req) \
508	croak ("out of memory during eio_req allocation"); \
509	\
510	req->callback = SvREFCNT_inc (cb_cv); \
511	req->pri = req_pri
512		818
513	#define REQ_SEND \	819	#define REQ_SEND \
514	PUTBACK; \	820	PUTBACK; \
515	req_submit (req); \	821	req_submit (req); \
516	SPAGAIN; \	822	SPAGAIN; \
517	\	823	\
518	if (GIMME_V != G_VOID) \	824	if (GIMME_V != G_VOID) \
519	XPUSHs (req_sv (req, AIO_REQ_KLASS));	825	XPUSHs (req_sv (req, aio_req_stash));
		826
		827	ecb_inline void
		828	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		829	{
		830	if (expect_false (SvROK (path)))
		831	{
		832	SV *rv = SvRV (path);
		833	SV *wdob;
		834
		835	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		836	{
		837	path = AvARRAY (rv)[1];
		838	wdob = AvARRAY (rv)[0];
		839
		840	if (SvOK (wdob))
		841	{
		842	*wd = SvAIO_WD (wdob);
		843	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		844	}
		845	else
		846	*wd = EIO_INVALID_WD;
		847	}
		848	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		849	{
		850	*wd = (aio_wd)(long)SvIVX (rv);
		851	*wdsv = SvREFCNT_inc_NN (rv);
		852	*ptr = ".";
		853	return; /* path set to "." */
		854	}
		855	else
		856	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		857	}
		858
		859	*pathsv = newSVsv (path);
		860	*ptr = SvPVbyte_nolen (*pathsv);
		861	}
		862
		863	static void ecb_noinline
		864	req_set_path1 (aio_req req, SV *path)
		865	{
		866	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		867	}
		868
		869	static void ecb_noinline
		870	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		871	{
		872	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		873
		874	switch (SvTYPE (rv))
		875	{
		876	case SVt_PVIO:
		877	case SVt_PVLV:
		878	case SVt_PVGV:
		879	req->type = type_fh;
		880	req->sv1 = newSVsv (fh_or_path);
		881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		882	break;
		883
		884	default:
		885	req->type = type_path;
		886	req_set_path1 (req, fh_or_path);
		887	break;
		888	}
		889	}
		890
		891	XS(boot_IO__AIO) ecb_cold;
520		892
521	MODULE = IO::AIO PACKAGE = IO::AIO	893	MODULE = IO::AIO PACKAGE = IO::AIO
522		894
523	PROTOTYPES: ENABLE	895	PROTOTYPES: ENABLE
524		896
…		…
526	{	898	{
527	static const struct {	899	static const struct {
528	const char *name;	900	const char *name;
529	IV iv;	901	IV iv;
530	} *civ, const_iv[] = {	902	} *civ, const_iv[] = {
531	# define const_iv(name, value) { # name, (IV) value },	903	# define const_niv(name, value) { # name, (IV) value },
		904	# define const_iv(name) { # name, (IV) name },
532	# define const_eio(name) { # name, (IV) EIO_ ## name },	905	# define const_eio(name) { # name, (IV) EIO_ ## name },
533	const_iv (EXDEV , EXDEV)	906
		907	/* you have to re-run ./gendef0 after adding/removing any constants here */
		908	/* the first block can be undef if missing */
534	const_iv (ENOSYS , ENOSYS)	909	const_iv (ENOSYS)
535	const_iv (O_RDONLY, O_RDONLY)	910	const_iv (EXDEV)
536	const_iv (O_WRONLY, O_WRONLY)	911	const_iv (EBADR)
537	const_iv (O_CREAT , O_CREAT)	912
538	const_iv (O_TRUNC , O_TRUNC)	913	/* for lseek */
539	#ifndef _WIN32	914	const_iv (SEEK_DATA)
540	const_iv (S_IFIFO , S_IFIFO)	915	const_iv (SEEK_HOLE)
541	#endif	916
542	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	917	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
543	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	918	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
544	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	919	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
545	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	920	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
546	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	921	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
547	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	922	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		923
		924	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		925	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		929
		930	/* the second block will be 0 when missing */
		931	const_iv (O_RDONLY)
		932	const_iv (O_WRONLY)
		933	const_iv (O_RDWR)
		934	const_iv (O_CREAT)
		935	const_iv (O_TRUNC)
		936	const_iv (O_EXCL)
		937	const_iv (O_APPEND)
		938
		939	const_iv (O_ASYNC)
		940	const_iv (O_DIRECT)
		941	const_iv (O_NOATIME)
		942
		943	const_iv (O_CLOEXEC)
		944	const_iv (O_NOCTTY)
		945	const_iv (O_NOFOLLOW)
		946	const_iv (O_NONBLOCK)
		947	const_iv (O_EXEC)
		948	const_iv (O_SEARCH)
		949	const_iv (O_DIRECTORY)
		950	const_iv (O_DSYNC)
		951	const_iv (O_RSYNC)
		952	const_iv (O_SYNC)
		953	const_iv (O_PATH)
		954	const_iv (O_TMPFILE)
		955	const_iv (O_TTY_INIT)
		956
		957	const_iv (S_IFIFO)
		958	const_iv (S_IFCHR)
		959	const_iv (S_IFBLK)
		960	const_iv (S_IFLNK)
		961	const_iv (S_IFREG)
		962	const_iv (S_IFDIR)
		963	const_iv (S_IFWHT)
		964	const_iv (S_IFSOCK)
		965	const_iv (S_IFMT)
		966
		967	const_iv (ST_RDONLY)
		968	const_iv (ST_NOSUID)
		969	const_iv (ST_NODEV)
		970	const_iv (ST_NOEXEC)
		971	const_iv (ST_SYNCHRONOUS)
		972	const_iv (ST_MANDLOCK)
		973	const_iv (ST_WRITE)
		974	const_iv (ST_APPEND)
		975	const_iv (ST_IMMUTABLE)
		976	const_iv (ST_NOATIME)
		977	const_iv (ST_NODIRATIME)
		978	const_iv (ST_RELATIME)
		979
		980	const_iv (PROT_NONE)
		981	const_iv (PROT_EXEC)
		982	const_iv (PROT_READ)
		983	const_iv (PROT_WRITE)
		984
		985	const_iv (MAP_PRIVATE)
		986	const_iv (MAP_SHARED)
		987	const_iv (MAP_FIXED)
		988	const_iv (MAP_ANONYMOUS)
		989
		990	/* linuxish */
		991	const_iv (MAP_LOCKED)
		992	const_iv (MAP_NORESERVE)
		993	const_iv (MAP_POPULATE)
		994	const_iv (MAP_NONBLOCK)
		995	const_iv (MAP_GROWSDOWN)
		996	const_iv (MAP_32BIT)
		997	const_iv (MAP_HUGETLB)
		998	const_iv (MAP_STACK)
		999
		1000	const_iv (F_DUPFD_CLOEXEC)
		1001
		1002	const_iv (F_OFD_GETLK)
		1003	const_iv (F_OFD_SETLK)
		1004	const_iv (F_OFD_GETLKW)
		1005
		1006	const_iv (FIFREEZE)
		1007	const_iv (FITHAW)
		1008	const_iv (FITRIM)
		1009	const_iv (FICLONE)
		1010	const_iv (FICLONERANGE)
		1011	const_iv (FIDEDUPERANGE)
		1012
		1013	const_iv (FS_IOC_GETFLAGS)
		1014	const_iv (FS_IOC_SETFLAGS)
		1015	const_iv (FS_IOC_GETVERSION)
		1016	const_iv (FS_IOC_SETVERSION)
		1017	const_iv (FS_IOC_FIEMAP)
		1018	const_iv (FS_IOC_FSGETXATTR)
		1019	const_iv (FS_IOC_FSSETXATTR)
		1020	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1021	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1022	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1023
		1024	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1025
		1026	const_iv (FS_SECRM_FL)
		1027	const_iv (FS_UNRM_FL)
		1028	const_iv (FS_COMPR_FL)
		1029	const_iv (FS_SYNC_FL)
		1030	const_iv (FS_IMMUTABLE_FL)
		1031	const_iv (FS_APPEND_FL)
		1032	const_iv (FS_NODUMP_FL)
		1033	const_iv (FS_NOATIME_FL)
		1034	const_iv (FS_DIRTY_FL)
		1035	const_iv (FS_COMPRBLK_FL)
		1036	const_iv (FS_NOCOMP_FL)
		1037	const_iv (FS_ENCRYPT_FL)
		1038	const_iv (FS_BTREE_FL)
		1039	const_iv (FS_INDEX_FL)
		1040	const_iv (FS_JOURNAL_DATA_FL)
		1041	const_iv (FS_NOTAIL_FL)
		1042	const_iv (FS_DIRSYNC_FL)
		1043	const_iv (FS_TOPDIR_FL)
		1044	const_iv (FS_FL_USER_MODIFIABLE)
		1045
		1046	const_iv (FS_XFLAG_REALTIME)
		1047	const_iv (FS_XFLAG_PREALLOC)
		1048	const_iv (FS_XFLAG_IMMUTABLE)
		1049	const_iv (FS_XFLAG_APPEND)
		1050	const_iv (FS_XFLAG_SYNC)
		1051	const_iv (FS_XFLAG_NOATIME)
		1052	const_iv (FS_XFLAG_NODUMP)
		1053	const_iv (FS_XFLAG_RTINHERIT)
		1054	const_iv (FS_XFLAG_PROJINHERIT)
		1055	const_iv (FS_XFLAG_NOSYMLINKS)
		1056	const_iv (FS_XFLAG_EXTSIZE)
		1057	const_iv (FS_XFLAG_EXTSZINHERIT)
		1058	const_iv (FS_XFLAG_NODEFRAG)
		1059	const_iv (FS_XFLAG_FILESTREAM)
		1060	const_iv (FS_XFLAG_DAX)
		1061	const_iv (FS_XFLAG_HASATTR)
		1062
		1063	const_iv (FIEMAP_FLAG_SYNC)
		1064	const_iv (FIEMAP_FLAG_XATTR)
		1065	const_iv (FIEMAP_FLAGS_COMPAT)
		1066	const_iv (FIEMAP_EXTENT_LAST)
		1067	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1068	const_iv (FIEMAP_EXTENT_DELALLOC)
		1069	const_iv (FIEMAP_EXTENT_ENCODED)
		1070	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1071	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1072	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1073	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1074	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1075	const_iv (FIEMAP_EXTENT_MERGED)
		1076	const_iv (FIEMAP_EXTENT_SHARED)
		1077
		1078	const_iv (SPLICE_F_MOVE)
		1079	const_iv (SPLICE_F_NONBLOCK)
		1080	const_iv (SPLICE_F_MORE)
		1081	const_iv (SPLICE_F_GIFT)
		1082
		1083	/* these are libeio constants, and are independent of gendef0 */
		1084	const_eio (SEEK_SET)
		1085	const_eio (SEEK_CUR)
		1086	const_eio (SEEK_END)
		1087
		1088	const_eio (MCL_FUTURE)
		1089	const_eio (MCL_CURRENT)
		1090
		1091	const_eio (MS_ASYNC)
		1092	const_eio (MS_INVALIDATE)
		1093	const_eio (MS_SYNC)
		1094
		1095	const_eio (MT_MODIFY)
548		1096
549	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1097	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
550	const_eio (SYNC_FILE_RANGE_WRITE)	1098	const_eio (SYNC_FILE_RANGE_WRITE)
551	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1099	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1100
		1101	const_eio (FALLOC_FL_KEEP_SIZE)
		1102	const_eio (FALLOC_FL_PUNCH_HOLE)
		1103	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1104	const_eio (FALLOC_FL_ZERO_RANGE)
		1105	const_eio (FALLOC_FL_INSET_RANGE)
		1106	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1107
		1108	const_eio (RENAME_NOREPLACE)
		1109	const_eio (RENAME_EXCHANGE)
		1110	const_eio (RENAME_WHITEOUT)
552		1111
553	const_eio (READDIR_DENTS)	1112	const_eio (READDIR_DENTS)
554	const_eio (READDIR_DIRS_FIRST)	1113	const_eio (READDIR_DIRS_FIRST)
555	const_eio (READDIR_STAT_ORDER)	1114	const_eio (READDIR_STAT_ORDER)
556	const_eio (READDIR_FOUND_UNKNOWN)	1115	const_eio (READDIR_FOUND_UNKNOWN)
…		…
564	const_eio (DT_LNK)	1123	const_eio (DT_LNK)
565	const_eio (DT_SOCK)	1124	const_eio (DT_SOCK)
566	const_eio (DT_WHT)	1125	const_eio (DT_WHT)
567	};	1126	};
568		1127
569	stash = gv_stashpv ("IO::AIO", 1);	1128	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1129	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1130	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1131	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
570		1132
571	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1133	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
572	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1134	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
573		1135
574	create_respipe ();	1136	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
575		1137
576	if (eio_init (want_poll, done_poll) < 0)	1138	reinit ();
577	croak ("IO::AIO: unable to initialise eio library");
578
579	/* atfork child called in fifo order, so before eio's handler */
580	X_THREAD_ATFORK (0, 0, atfork_child);
581	}	1139	}
582		1140
583	void	1141	void
		1142	reinit ()
		1143	PROTOTYPE:
		1144
		1145	void
584	max_poll_reqs (int nreqs)	1146	max_poll_reqs (unsigned int nreqs)
585	PROTOTYPE: $	1147	PROTOTYPE: $
586	CODE:	1148	CODE:
587	eio_set_max_poll_reqs (nreqs);	1149	eio_set_max_poll_reqs (nreqs);
588		1150
589	void	1151	void
…		…
591	PROTOTYPE: $	1153	PROTOTYPE: $
592	CODE:	1154	CODE:
593	eio_set_max_poll_time (nseconds);	1155	eio_set_max_poll_time (nseconds);
594		1156
595	void	1157	void
596	min_parallel (int nthreads)	1158	min_parallel (unsigned int nthreads)
597	PROTOTYPE: $	1159	PROTOTYPE: $
598	CODE:	1160	CODE:
599	eio_set_min_parallel (nthreads);	1161	eio_set_min_parallel (nthreads);
600		1162
601	void	1163	void
602	max_parallel (int nthreads)	1164	max_parallel (unsigned int nthreads)
603	PROTOTYPE: $	1165	PROTOTYPE: $
604	CODE:	1166	CODE:
605	eio_set_max_parallel (nthreads);	1167	eio_set_max_parallel (nthreads);
606		1168
607	void	1169	void
608	max_idle (int nthreads)	1170	max_idle (unsigned int nthreads)
609	PROTOTYPE: $	1171	PROTOTYPE: $
610	CODE:	1172	CODE:
611	eio_set_max_idle (nthreads);	1173	eio_set_max_idle (nthreads);
612		1174
613	void	1175	void
		1176	idle_timeout (unsigned int seconds)
		1177	PROTOTYPE: $
		1178	CODE:
		1179	eio_set_idle_timeout (seconds);
		1180
		1181	void
614	max_outstanding (int maxreqs)	1182	max_outstanding (unsigned int maxreqs)
615	PROTOTYPE: $	1183	PROTOTYPE: $
616	CODE:	1184	CODE:
617	max_outstanding = maxreqs;	1185	max_outstanding = maxreqs;
618		1186
619	void	1187	void
620	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1188	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
621	PROTOTYPE: $$$;$
622	PPCODE:	1189	PPCODE:
623	{	1190	{
624	dREQ;	1191	dREQ;
625		1192
		1193	req->type = EIO_WD_OPEN;
		1194	req_set_path1 (req, pathname);
		1195
		1196	REQ_SEND;
		1197	}
		1198
		1199	void
		1200	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1201	PPCODE:
		1202	{
		1203	dREQ;
		1204
626	req->type = EIO_OPEN;	1205	req->type = EIO_OPEN;
627	req->sv1 = newSVsv (pathname);	1206	req_set_path1 (req, pathname);
628	req->ptr1 = SvPVbyte_nolen (req->sv1);
629	req->int1 = flags;	1207	req->int1 = flags;
630	req->int2 = mode;	1208	req->int2 = mode;
631		1209
632	REQ_SEND;	1210	REQ_SEND;
633	}	1211	}
634		1212
635	void	1213	void
636	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1214	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
637	PROTOTYPE: $;$
638	ALIAS:	1215	ALIAS:
639	aio_fsync = EIO_FSYNC	1216	aio_fsync = EIO_FSYNC
640	aio_fdatasync = EIO_FDATASYNC	1217	aio_fdatasync = EIO_FDATASYNC
		1218	aio_syncfs = EIO_SYNCFS
641	PPCODE:	1219	PPCODE:
642	{	1220	{
643	int fd = s_fileno_croak (fh, 0);	1221	int fd = s_fileno_croak (fh, 0);
644	dREQ;	1222	dREQ;
645		1223
646	req->type = ix;	1224	req->type = ix;
647	req->sv1 = newSVsv (fh);	1225	req->sv1 = newSVsv (fh);
648	req->int1 = fd;	1226	req->int1 = fd;
649		1227
650	REQ_SEND (req);	1228	REQ_SEND;
651	}	1229	}
652		1230
653	void	1231	void
654	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1232	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
655	PROTOTYPE: $$$$;$
656	PPCODE:	1233	PPCODE:
657	{	1234	{
658	int fd = s_fileno_croak (fh, 0);	1235	int fd = s_fileno_croak (fh, 0);
659	dREQ;	1236	dREQ;
660		1237
661	req->type = EIO_SYNC_FILE_RANGE;	1238	req->type = EIO_SYNC_FILE_RANGE;
662	req->sv1 = newSVsv (fh);	1239	req->sv1 = newSVsv (fh);
663	req->int1 = fd;	1240	req->int1 = fd;
664	req->offs = offset;	1241	req->offs = offset;
665	req->size = nbytes;	1242	req->size = nbytes;
666	req->int2 = flags;	1243	req->int2 = flags;
667		1244
668	REQ_SEND (req);	1245	REQ_SEND;
669	}	1246	}
670		1247
671	void	1248	void
672	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1249	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
673	PROTOTYPE: $;$
674	PPCODE:	1250	PPCODE:
675	{	1251	{
676	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
677	int fd = s_fileno_croak (fh, 0);	1252	int fd = s_fileno_croak (fh, 0);
678	dREQ;	1253	dREQ;
679		1254
680	if (close_pipe < 0)	1255	req->type = EIO_FALLOCATE;
		1256	req->sv1 = newSVsv (fh);
		1257	req->int1 = fd;
		1258	req->int2 = mode;
		1259	req->offs = offset;
		1260	req->size = len;
		1261
		1262	REQ_SEND;
		1263	}
		1264
		1265	void
		1266	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1267	PPCODE:
		1268	{
		1269	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1270	int fd = s_fileno_croak (fh, 0);
		1271	dREQ;
		1272
		1273	if (expect_false (close_fd < 0))
681	{	1274	{
682	int pipefd [2];	1275	int pipefd [2];
683		1276
		1277	if (
		1278	#ifdef _WIN32
		1279	_pipe (pipefd, 1, _O_BINARY) < 0
		1280	#else
684	if (pipe (pipefd) < 0	1281	pipe (pipefd) < 0
685	|| close (pipefd [1]) < 0
686	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1282	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1283	#endif
		1284	|| close (pipefd [1]) < 0
		1285	)
687	abort (); /*D*/	1286	abort (); /*D*/
688		1287
689	close_pipe = pipefd [0];	1288	close_fd = pipefd [0];
690	}	1289	}
691		1290
692	req->type = EIO_DUP2;	1291	req->type = EIO_DUP2;
693	req->int1 = close_pipe;	1292	req->int1 = close_fd;
694	req->sv2 = newSVsv (fh);	1293	req->sv2 = newSVsv (fh);
695	req->int2 = fd;	1294	req->int2 = fd;
696		1295
697	REQ_SEND (req);	1296	REQ_SEND;
698	}	1297	}
699		1298
700	void	1299	void
		1300	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1301	PPCODE:
		1302	{
		1303	int fd = s_fileno_croak (fh, 0);
		1304	dREQ;
		1305
		1306	req->type = EIO_SEEK;
		1307	req->sv1 = newSVsv (fh);
		1308	req->int1 = fd;
		1309	req->offs = SvVAL64 (offset);
		1310	req->int2 = whence;
		1311
		1312	REQ_SEND;
		1313	}
		1314
		1315	void
701	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1316	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
702	ALIAS:	1317	ALIAS:
703	aio_read = EIO_READ	1318	aio_read = EIO_READ
704	aio_write = EIO_WRITE	1319	aio_write = EIO_WRITE
705	PROTOTYPE: $$$$$;$
706	PPCODE:	1320	PPCODE:
707	{	1321	{
708	STRLEN svlen;	1322	STRLEN svlen;
709	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1323	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
710	char *svptr = SvPVbyte (data, svlen);	1324	char *svptr = SvPVbyte (data, svlen);
…		…
723	len = svlen - dataoffset;	1337	len = svlen - dataoffset;
724	}	1338	}
725	else	1339	else
726	{	1340	{
727	/* read: check type and grow scalar as necessary */	1341	/* read: check type and grow scalar as necessary */
728	SvUPGRADE (data, SVt_PV);	1342	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
729	svptr = SvGROW (data, len + dataoffset + 1);	1343	svptr = sv_grow (data, len + dataoffset + 1);
		1344	else if (SvCUR (data) < len + dataoffset)
		1345	croak ("length + dataoffset outside of scalar, and cannot grow");
730	}	1346	}
731		1347
732	{	1348	{
733	dREQ;	1349	dREQ;
734		1350
…		…
750	REQ_SEND;	1366	REQ_SEND;
751	}	1367	}
752	}	1368	}
753		1369
754	void	1370	void
755	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1371	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
756	PROTOTYPE: $$;$	1372	ALIAS:
		1373	aio_ioctl = EIO_IOCTL
		1374	aio_fcntl = EIO_FCNTL
757	PPCODE:	1375	PPCODE:
758	{	1376	{
759	SV *data;	1377	int fd = s_fileno_croak (fh, 0);
		1378	char *svptr;
		1379
		1380	if (SvPOK (arg) || !SvNIOK (arg))
		1381	{
		1382	STRLEN svlen;
		1383	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1384	#ifdef IOCPARM_LEN
		1385	STRLEN need = IOCPARM_LEN (request);
		1386	#else
		1387	STRLEN need = 256;
		1388	#endif
		1389
		1390	if (svlen < need)
		1391	svptr = SvGROW (arg, need);
		1392	}
		1393	else
		1394	svptr = (char *)SvIV (arg);
		1395
		1396	{
		1397	dREQ;
		1398
		1399	req->type = ix;
		1400	req->sv1 = newSVsv (fh);
		1401	req->int1 = fd;
		1402	req->int2 = (long)request;
		1403	req->sv2 = SvREFCNT_inc (arg);
		1404	req->ptr2 = svptr;
		1405
		1406	REQ_SEND;
		1407	}
		1408	}
		1409
		1410	void
		1411	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1412	ALIAS:
		1413	aio_readlink = EIO_READLINK
		1414	aio_realpath = EIO_REALPATH
		1415	PPCODE:
		1416	{
760	dREQ;	1417	dREQ;
761		1418
762	req->type = EIO_READLINK;	1419	req->type = ix;
763	req->sv1 = newSVsv (path);	1420	req_set_path1 (req, pathname);
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765		1421
766	REQ_SEND;	1422	REQ_SEND;
767	}	1423	}
768		1424
769	void	1425	void
770	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1426	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
771	PROTOTYPE: $$$$;$
772	PPCODE:	1427	PPCODE:
773	{	1428	{
774	int ifd = s_fileno_croak (in_fh , 0);	1429	int ifd = s_fileno_croak (in_fh , 0);
775	int ofd = s_fileno_croak (out_fh, 1);	1430	int ofd = s_fileno_croak (out_fh, 1);
776	dREQ;	1431	dREQ;
777		1432
778	req->type = EIO_SENDFILE;	1433	req->type = EIO_SENDFILE;
779	req->sv1 = newSVsv (out_fh);	1434	req->sv1 = newSVsv (out_fh);
780	req->int1 = ofd;	1435	req->int1 = ofd;
…		…
785		1440
786	REQ_SEND;	1441	REQ_SEND;
787	}	1442	}
788		1443
789	void	1444	void
790	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1445	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
791	PROTOTYPE: $$$;$
792	PPCODE:	1446	PPCODE:
793	{	1447	{
794	int fd = s_fileno_croak (fh, 0);	1448	int fd = s_fileno_croak (fh, 0);
795	dREQ;	1449	dREQ;
796		1450
797	req->type = EIO_READAHEAD;	1451	req->type = EIO_READAHEAD;
798	req->sv1 = newSVsv (fh);	1452	req->sv1 = newSVsv (fh);
799	req->int1 = fd;	1453	req->int1 = fd;
…		…
802		1456
803	REQ_SEND;	1457	REQ_SEND;
804	}	1458	}
805		1459
806	void	1460	void
807	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1461	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
808	ALIAS:	1462	ALIAS:
809	aio_stat = EIO_STAT	1463	aio_stat = EIO_STAT
810	aio_lstat = EIO_LSTAT	1464	aio_lstat = EIO_LSTAT
		1465	aio_statvfs = EIO_STATVFS
811	PPCODE:	1466	PPCODE:
812	{	1467	{
813	dREQ;	1468	dREQ;
814		1469
815	req->sv1 = newSVsv (fh_or_path);	1470	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
816
817	if (SvPOK (req->sv1))
818	{
819	req->type = ix;
820	req->ptr1 = SvPVbyte_nolen (req->sv1);
821	}
822	else
823	{
824	req->type = EIO_FSTAT;
825	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
826	}
827		1471
828	REQ_SEND;	1472	REQ_SEND;
829	}	1473	}
830		1474
		1475	UV
		1476	major (UV dev)
		1477	ALIAS:
		1478	minor = 1
		1479	CODE:
		1480	RETVAL = ix ? minor (dev) : major (dev);
		1481	OUTPUT:
		1482	RETVAL
		1483
		1484	UV
		1485	makedev (UV maj, UV min)
		1486	CODE:
		1487	RETVAL = makedev (maj, min);
		1488	OUTPUT:
		1489	RETVAL
		1490
831	void	1491	void
832	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1492	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
833	PPCODE:	1493	PPCODE:
834	{	1494	{
835	dREQ;	1495	dREQ;
836		1496
837	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1497	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
838	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1498	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
839	req->sv1 = newSVsv (fh_or_path);	1499	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
840
841	if (SvPOK (req->sv1))
842	{
843	req->type = EIO_UTIME;
844	req->ptr1 = SvPVbyte_nolen (req->sv1);
845	}
846	else
847	{
848	req->type = EIO_FUTIME;
849	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850	}
851		1500
852	REQ_SEND;	1501	REQ_SEND;
853	}	1502	}
854		1503
855	void	1504	void
856	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1505	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
857	PPCODE:	1506	PPCODE:
858	{	1507	{
859	dREQ;	1508	dREQ;
860		1509
861	req->sv1 = newSVsv (fh_or_path);
862	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1510	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
863		1511	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
864	if (SvPOK (req->sv1))
865	{
866	req->type = EIO_TRUNCATE;
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	}
869	else
870	{
871	req->type = EIO_FTRUNCATE;
872	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
873	}
874		1512
875	REQ_SEND;	1513	REQ_SEND;
876	}	1514	}
877		1515
878	void	1516	void
879	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1517	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
880	ALIAS:
881	aio_chmod = EIO_CHMOD
882	aio_mkdir = EIO_MKDIR
883	PPCODE:	1518	PPCODE:
884	{	1519	{
885	dREQ;	1520	dREQ;
886		1521
887	req->int2 = mode;	1522	req->int2 = mode;
888	req->sv1 = newSVsv (fh_or_path);	1523	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
889
890	if (SvPOK (req->sv1))
891	{
892	req->type = ix;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FCHMOD;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1524
901	REQ_SEND;	1525	REQ_SEND;
902	}	1526	}
903		1527
904	void	1528	void
905	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1529	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
906	PPCODE:	1530	PPCODE:
907	{	1531	{
908	dREQ;	1532	dREQ;
909		1533
910	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1534	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
911	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1535	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
912	req->sv1 = newSVsv (fh_or_path);	1536	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
913
914	if (SvPOK (req->sv1))
915	{
916	req->type = EIO_CHOWN;
917	req->ptr1 = SvPVbyte_nolen (req->sv1);
918	}
919	else
920	{
921	req->type = EIO_FCHOWN;
922	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
923	}
924		1537
925	REQ_SEND;	1538	REQ_SEND;
926	}	1539	}
927		1540
928	void	1541	void
929	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1542	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
930	PPCODE:	1543	PPCODE:
931	{	1544	{
932	dREQ;	1545	dREQ;
933		1546
934	req->type = EIO_READDIR;	1547	req->type = EIO_READDIR;
935	req->sv1 = newSVsv (pathname);
936	req->ptr1 = SvPVbyte_nolen (req->sv1);
937	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1548	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
938		1549
939	if (flags & EIO_READDIR_DENTS)	1550	if (flags & EIO_READDIR_DENTS)
940	req->int1 |= EIO_READDIR_CUSTOM2;	1551	req->int1 |= EIO_READDIR_CUSTOM2;
941		1552
		1553	req_set_path1 (req, pathname);
		1554
942	REQ_SEND;	1555	REQ_SEND;
943	}	1556	}
944		1557
945	void	1558	void
		1559	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1560	PPCODE:
		1561	{
		1562	dREQ;
		1563
		1564	req->type = EIO_MKDIR;
		1565	req->int2 = mode;
		1566	req_set_path1 (req, pathname);
		1567
		1568	REQ_SEND;
		1569	}
		1570
		1571	void
946	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1572	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
947	ALIAS:	1573	ALIAS:
948	aio_unlink = EIO_UNLINK	1574	aio_unlink = EIO_UNLINK
949	aio_rmdir = EIO_RMDIR	1575	aio_rmdir = EIO_RMDIR
950	aio_readdir = EIO_READDIR	1576	aio_readdir = EIO_READDIR
951	PPCODE:	1577	PPCODE:
952	{	1578	{
953	dREQ;	1579	dREQ;
954		1580
955	req->type = ix;	1581	req->type = ix;
956	req->sv1 = newSVsv (pathname);	1582	req_set_path1 (req, pathname);
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958		1583
959	REQ_SEND;	1584	REQ_SEND;
960	}	1585	}
961		1586
962	void	1587	void
963	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1588	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
964	ALIAS:	1589	ALIAS:
965	aio_link = EIO_LINK	1590	aio_link = EIO_LINK
966	aio_symlink = EIO_SYMLINK	1591	aio_symlink = EIO_SYMLINK
967	aio_rename = EIO_RENAME	1592	aio_rename = EIO_RENAME
968	PPCODE:	1593	PPCODE:
969	{	1594	{
		1595	eio_wd wd2 = 0;
970	dREQ;	1596	dREQ;
971		1597
972	req->type = ix;	1598	req->type = ix;
973	req->sv1 = newSVsv (oldpath);	1599	req_set_path1 (req, oldpath);
974	req->ptr1 = SvPVbyte_nolen (req->sv1);	1600	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
975	req->sv2 = newSVsv (newpath);	1601	req->int3 = (long)wd2;
976	req->ptr2 = SvPVbyte_nolen (req->sv2);
977		1602
978	REQ_SEND;	1603	REQ_SEND;
979	}	1604	}
980		1605
981	void	1606	void
		1607	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1608	PPCODE:
		1609	{
		1610	eio_wd wd2 = 0;
		1611	dREQ;
		1612
		1613	req->type = EIO_RENAME;
		1614	req_set_path1 (req, oldpath);
		1615	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1616	req->int2 = flags;
		1617	req->int3 = (long)wd2;
		1618
		1619	REQ_SEND;
		1620	}
		1621
		1622	void
982	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1623	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
983	PPCODE:	1624	PPCODE:
984	{	1625	{
985	dREQ;	1626	dREQ;
986		1627
987	req->type = EIO_MKNOD;	1628	req->type = EIO_MKNOD;
988	req->sv1 = newSVsv (pathname);
989	req->ptr1 = SvPVbyte_nolen (req->sv1);
990	req->int2 = (mode_t)mode;	1629	req->int2 = (mode_t)mode;
991	req->offs = dev;	1630	req->offs = dev;
		1631	req_set_path1 (req, pathname);
992		1632
993	REQ_SEND;	1633	REQ_SEND;
994	}	1634	}
995		1635
996	void	1636	void
		1637	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1638	ALIAS:
		1639	aio_mtouch = EIO_MTOUCH
		1640	aio_msync = EIO_MSYNC
		1641	PPCODE:
		1642	{
		1643	STRLEN svlen;
		1644	char *svptr = SvPVbyte (data, svlen);
		1645	UV len = SvUV (length);
		1646
		1647	if (flags < 0)
		1648	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1649
		1650	if (offset < 0)
		1651	offset += svlen;
		1652
		1653	if (offset < 0 || offset > svlen)
		1654	croak ("offset outside of scalar");
		1655
		1656	if (!SvOK (length) || len + offset > svlen)
		1657	len = svlen - offset;
		1658
		1659	{
		1660	dREQ;
		1661
		1662	req->type = ix;
		1663	req->sv2 = SvREFCNT_inc (data);
		1664	req->ptr2 = (char *)svptr + offset;
		1665	req->size = len;
		1666	req->int1 = flags;
		1667
		1668	REQ_SEND;
		1669	}
		1670	}
		1671
		1672	void
		1673	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1674	PPCODE:
		1675	{
		1676	STRLEN svlen;
		1677	char *svptr = SvPVbyte (data, svlen);
		1678	UV len = SvUV (length);
		1679
		1680	if (offset < 0)
		1681	offset += svlen;
		1682
		1683	if (offset < 0 || offset > svlen)
		1684	croak ("offset outside of scalar");
		1685
		1686	if (!SvOK (length) || len + offset > svlen)
		1687	len = svlen - offset;
		1688
		1689	{
		1690	dREQ;
		1691
		1692	req->type = EIO_MLOCK;
		1693	req->sv2 = SvREFCNT_inc (data);
		1694	req->ptr2 = (char *)svptr + offset;
		1695	req->size = len;
		1696
		1697	REQ_SEND;
		1698	}
		1699	}
		1700
		1701	void
		1702	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1703	PPCODE:
		1704	{
		1705	dREQ;
		1706
		1707	req->type = EIO_MLOCKALL;
		1708	req->int1 = flags;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
		1714	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1715	PPCODE:
		1716	{
		1717	int fd = s_fileno_croak (fh, 0);
		1718	dREQ;
		1719
		1720	req->type = EIO_CUSTOM;
		1721	req->sv1 = newSVsv (fh);
		1722	req->int1 = fd;
		1723
		1724	req->feed = fiemap;
		1725	#if HAVE_FIEMAP
		1726	/* keep our fingers crossed that the next two types are 64 bit */
		1727	req->offs = start;
		1728	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1729	req->int2 = flags;
		1730	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1731	#endif
		1732
		1733	REQ_SEND;
		1734	}
		1735
		1736	void
997	aio_busy (double delay, SV *callback=&PL_sv_undef)	1737	aio_busy (double delay, SV *callback = &PL_sv_undef)
998	PPCODE:	1738	PPCODE:
999	{	1739	{
1000	dREQ;	1740	dREQ;
1001		1741
1002	req->type = EIO_BUSY;	1742	req->type = EIO_BUSY;
…		…
1004		1744
1005	REQ_SEND;	1745	REQ_SEND;
1006	}	1746	}
1007		1747
1008	void	1748	void
1009	aio_group (SV *callback=&PL_sv_undef)	1749	aio_group (SV *callback = &PL_sv_undef)
1010	PROTOTYPE: ;$
1011	PPCODE:	1750	PPCODE:
1012	{	1751	{
1013	dREQ;	1752	dREQ;
1014		1753
1015	req->type = EIO_GROUP;	1754	req->type = EIO_GROUP;
1016		1755
		1756	PUTBACK;
1017	req_submit (req);	1757	req_submit (req);
		1758	SPAGAIN;
		1759
1018	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1760	XPUSHs (req_sv (req, aio_grp_stash));
1019	}	1761	}
1020		1762
1021	void	1763	void
1022	aio_nop (SV *callback=&PL_sv_undef)	1764	aio_nop (SV *callback = &PL_sv_undef)
1023	ALIAS:	1765	ALIAS:
1024	aio_nop = EIO_NOP	1766	aio_nop = EIO_NOP
1025	aio_sync = EIO_SYNC	1767	aio_sync = EIO_SYNC
1026	PPCODE:	1768	PPCODE:
1027	{	1769	{
…		…
1031		1773
1032	REQ_SEND;	1774	REQ_SEND;
1033	}	1775	}
1034		1776
1035	int	1777	int
1036	aioreq_pri (int pri = 0)	1778	aioreq_pri (int pri = NO_INIT)
1037	PROTOTYPE: ;$
1038	CODE:	1779	CODE:
1039	RETVAL = next_pri;	1780	RETVAL = next_pri;
1040	if (items > 0)	1781	if (items > 0)
1041	{	1782	{
1042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1783	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1795	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1055	next_pri = nice;	1796	next_pri = nice;
1056		1797
1057	void	1798	void
1058	flush ()	1799	flush ()
1059	PROTOTYPE:
1060	CODE:	1800	CODE:
1061	while (eio_nreqs ())	1801	while (eio_nreqs ())
1062	{	1802	{
1063	poll_wait ();	1803	poll_wait ();
1064	poll_cb ();	1804	poll_cb ();
1065	}	1805	}
1066		1806
1067	int	1807	int
1068	poll()	1808	poll ()
1069	PROTOTYPE:
1070	CODE:	1809	CODE:
1071	poll_wait ();	1810	poll_wait ();
1072	RETVAL = poll_cb ();	1811	RETVAL = poll_cb ();
1073	OUTPUT:	1812	OUTPUT:
1074	RETVAL	1813	RETVAL
1075		1814
1076	int	1815	int
1077	poll_fileno()	1816	poll_fileno ()
1078	PROTOTYPE:
1079	CODE:	1817	CODE:
1080	RETVAL = s_epipe_fd (&respipe);	1818	RETVAL = s_epipe_fd (&respipe);
1081	OUTPUT:	1819	OUTPUT:
1082	RETVAL	1820	RETVAL
1083		1821
1084	int	1822	int
1085	poll_cb(...)	1823	poll_cb (...)
1086	PROTOTYPE:	1824	PROTOTYPE:
1087	CODE:	1825	CODE:
1088	RETVAL = poll_cb ();	1826	RETVAL = poll_cb ();
1089	OUTPUT:	1827	OUTPUT:
1090	RETVAL	1828	RETVAL
1091		1829
1092	void	1830	void
1093	poll_wait()	1831	poll_wait ()
1094	PROTOTYPE:
1095	CODE:	1832	CODE:
1096	poll_wait ();	1833	poll_wait ();
1097		1834
1098	int	1835	int
1099	nreqs()	1836	nreqs ()
1100	PROTOTYPE:
1101	CODE:	1837	CODE:
1102	RETVAL = eio_nreqs ();	1838	RETVAL = eio_nreqs ();
1103	OUTPUT:	1839	OUTPUT:
1104	RETVAL	1840	RETVAL
1105		1841
1106	int	1842	int
1107	nready()	1843	nready ()
1108	PROTOTYPE:
1109	CODE:	1844	CODE:
1110	RETVAL = eio_nready ();	1845	RETVAL = eio_nready ();
1111	OUTPUT:	1846	OUTPUT:
1112	RETVAL	1847	RETVAL
1113		1848
1114	int	1849	int
1115	npending()	1850	npending ()
1116	PROTOTYPE:
1117	CODE:	1851	CODE:
1118	RETVAL = eio_npending ();	1852	RETVAL = eio_npending ();
1119	OUTPUT:	1853	OUTPUT:
1120	RETVAL	1854	RETVAL
1121		1855
1122	int	1856	int
1123	nthreads()	1857	nthreads ()
1124	PROTOTYPE:
1125	CODE:	1858	CODE:
1126	RETVAL = eio_nthreads ();	1859	RETVAL = eio_nthreads ();
1127	OUTPUT:	1860	OUTPUT:
1128	RETVAL	1861	RETVAL
1129		1862
1130	int	1863	int
1131	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1864	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1132	PROTOTYPE: $$$$
1133	CODE:	1865	CODE:
1134	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1135	RETVAL = posix_fadvise (fh, offset, length, advice);	1866	RETVAL = posix_fadvise (fh, offset, length, advice);
1136	#else
1137	RETVAL = errno = ENOSYS;
1138	#endif
1139	OUTPUT:	1867	OUTPUT:
1140	RETVAL	1868	RETVAL
1141		1869
1142	ssize_t	1870	IV
1143	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1871	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1144	PROTOTYPE: $$$$
1145	CODE:	1872	CODE:
1146	eio_sendfile_sync (ofh, ifh, offset, count);	1873	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1874	OUTPUT:
		1875	RETVAL
		1876
		1877	void
		1878	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1879	PPCODE:
		1880	sv_unmagic (scalar, MMAP_MAGIC);
		1881	{
		1882	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1883	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1884	if (addr == (void *)-1)
		1885	XSRETURN_NO;
		1886
		1887	sv_force_normal (scalar);
		1888
		1889	/* we store the length in mg_obj, as namlen is I32 :/ */
		1890	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1891	->mg_obj = (SV *)length;
		1892
		1893	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1894
		1895	if (!(prot & PROT_WRITE))
		1896	SvREADONLY_on (scalar);
		1897
		1898	if (SvLEN (scalar))
		1899	Safefree (SvPVX (scalar));
		1900
		1901	SvPVX (scalar) = (char *)addr;
		1902	SvCUR_set (scalar, length);
		1903	SvLEN_set (scalar, 0);
		1904	SvPOK_only (scalar);
		1905
		1906	XSRETURN_YES;
		1907	}
		1908
		1909	void
		1910	munmap (SV *scalar)
		1911	CODE:
		1912	sv_unmagic (scalar, MMAP_MAGIC);
		1913
		1914	int
		1915	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1916	ALIAS:
		1917	mprotect = 1
		1918	CODE:
		1919	{
		1920	STRLEN svlen;
		1921	void *addr = SvPVbyte (scalar, svlen);
		1922	STRLEN len = SvUV (length);
		1923
		1924	if (offset < 0)
		1925	offset += svlen;
		1926
		1927	if (offset < 0 || offset > svlen)
		1928	croak ("offset outside of scalar");
		1929
		1930	if (!SvOK (length) || len + offset > svlen)
		1931	len = svlen - offset;
		1932
		1933	addr = (void *)(((intptr_t)addr) + offset);
		1934	eio_page_align (&addr, &len);
		1935
		1936	switch (ix)
		1937	{
		1938	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1939	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1940	}
		1941	}
		1942	OUTPUT:
		1943	RETVAL
		1944
		1945	int
		1946	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1947	CODE:
		1948	{
		1949	STRLEN svlen;
		1950	void *addr = SvPVbyte (scalar, svlen);
		1951	size_t len = SvUV (length);
		1952
		1953	if (offset < 0)
		1954	offset += svlen;
		1955
		1956	if (offset < 0 || offset > svlen)
		1957	croak ("offset outside of scalar");
		1958
		1959	if (!SvOK (length) || len + offset > svlen)
		1960	len = svlen - offset;
		1961
		1962	addr = (void *)(((intptr_t)addr) + offset);
		1963	eio_page_align (&addr, &len);
		1964	#if _POSIX_MEMLOCK_RANGE
		1965	RETVAL = munlock (addr, len);
		1966	#else
		1967	RETVAL = EIO_ENOSYS ();
		1968	#endif
		1969	}
		1970	OUTPUT:
		1971	RETVAL
		1972
		1973	int
		1974	munlockall ()
		1975	CODE:
		1976	#if _POSIX_MEMLOCK
		1977	munlockall ();
		1978	#else
		1979	RETVAL = EIO_ENOSYS ();
		1980	#endif
		1981	OUTPUT:
		1982	RETVAL
		1983
		1984	int
		1985	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1986	CODE:
		1987	{
		1988	#if HAVE_LINUX_SPLICE
		1989	loff_t off_in_, off_out_;
		1990	RETVAL = splice (
		1991	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1992	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1993	length, flags
		1994	);
		1995	#else
		1996	RETVAL = EIO_ENOSYS ();
		1997	#endif
		1998	}
		1999	OUTPUT:
		2000	RETVAL
		2001
		2002	int
		2003	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2004	CODE:
		2005	#if HAVE_LINUX_SPLICE
		2006	RETVAL = tee (rfh, wfh, length, flags);
		2007	#else
		2008	RETVAL = EIO_ENOSYS ();
		2009	#endif
		2010	OUTPUT:
		2011	RETVAL
		2012
		2013	int
		2014	pipesize (aio_rfd rfh, int new_size = -1)
		2015	PROTOTYPE: $;$
		2016	CODE:
		2017	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2018	if (new_size >= 0)
		2019	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2020	else
		2021	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2022	#else
		2023	errno = ENOSYS;
		2024	RETVAL = -1;
		2025	#endif
		2026	OUTPUT:
		2027	RETVAL
		2028
		2029	void
		2030	pipe2 (int flags = 0)
		2031	PROTOTYPE: ;$
		2032	PPCODE:
		2033	{
		2034	int fd[2];
		2035	int res;
		2036
		2037	if (flags)
		2038	#if HAVE_PIPE2
		2039	res = pipe2 (fd, flags);
		2040	#else
		2041	res = (errno = ENOSYS, -1);
		2042	#endif
		2043	else
		2044	res = pipe (fd);
		2045
		2046	if (!res)
		2047	{
		2048	EXTEND (SP, 2);
		2049	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2050	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2051	}
		2052	}
1147		2053
1148	void _on_next_submit (SV *cb)	2054	void _on_next_submit (SV *cb)
1149	CODE:	2055	CODE:
1150	SvREFCNT_dec (on_next_submit);	2056	SvREFCNT_dec (on_next_submit);
1151	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2057	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1152		2058
1153	PROTOTYPES: DISABLE	2059	PROTOTYPES: DISABLE
1154		2060
		2061	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2062
		2063	BOOT:
		2064	{
		2065	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2066	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2067	}
		2068
		2069	void
		2070	DESTROY (SV *self)
		2071	CODE:
		2072	{
		2073	aio_wd wd = SvAIO_WD (self);
		2074	#if HAVE_AT
		2075	{
		2076	SV *callback = &PL_sv_undef;
		2077	dREQ; /* clobbers next_pri :/ */
		2078	next_pri = req->pri; /* restore next_pri */
		2079	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2080	req->type = EIO_WD_CLOSE;
		2081	req->wd = wd;
		2082	REQ_SEND;
		2083	}
		2084	#else
		2085	eio_wd_close_sync (wd);
		2086	#endif
		2087	}
		2088
1155	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2089	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1156		2090
1157	void	2091	void
1158	cancel (aio_req_ornot req)	2092	cancel (aio_req_ornot req)
1159	CODE:	2093	CODE:
1160	eio_cancel (req);	2094	eio_cancel (req);
1161		2095
1162	void	2096	void
1163	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2097	cb (aio_req_ornot req, SV *callback = NO_INIT)
1164	PPCODE:	2098	PPCODE:
1165	{	2099	{
1166	if (GIMME_V != G_VOID)	2100	if (GIMME_V != G_VOID)
1167	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2101	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1168		2102
1169	if (items > 1)	2103	if (items > 1)
1170	{	2104	{
1171	SV *cb_cv =get_cb (callback);	2105	SV *cb_cv = get_cb (callback);
1172		2106
1173	SvREFCNT_dec (req->callback);	2107	SvREFCNT_dec (req->callback);
1174	req->callback = SvREFCNT_inc (cb_cv);	2108	req->callback = SvREFCNT_inc (cb_cv);
1175	}	2109	}
1176	}	2110	}
…		…
1233	limit (aio_req grp, int limit)	2167	limit (aio_req grp, int limit)
1234	CODE:	2168	CODE:
1235	eio_grp_limit (grp, limit);	2169	eio_grp_limit (grp, limit);
1236		2170
1237	void	2171	void
1238	feed (aio_req grp, SV *callback=&PL_sv_undef)	2172	feed (aio_req grp, SV *callback = &PL_sv_undef)
1239	CODE:	2173	CODE:
1240	{	2174	{
1241	SvREFCNT_dec (grp->sv2);	2175	SvREFCNT_dec (grp->sv2);
1242	grp->sv2 = newSVsv (callback);	2176	grp->sv2 = newSVsv (callback);
1243	grp->feed = aio_grp_feed;	2177	grp->feed = aio_grp_feed;

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