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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC vs.
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# 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
23	#endif	35	#endif
24		36
25	/* perl namespace pollution */	37	/* perl namespace pollution */
26	#undef VERSION	38	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		39
77	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	42	#undef readdir
80	#undef opendir	43	#undef opendir
81	#undef closedir	44	#undef closedir
82		45
		46	#ifdef _WIN32
		47
		48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
		52	#undef open
		53	#undef read
		54	#undef write
		55	#undef send
		56	#undef recv
		57	#undef stat
		58	#undef lstat
		59	#undef fstat
		60	#undef truncate
		61	#undef ftruncate
		62	#undef open
		63	#undef link
		64	#undef close
		65	#undef unlink
		66	#undef mkdir
		67	#undef rmdir
		68	#undef rename
		69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
		79
		80	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	81	#define EIO_STRUCT_STATI64
84		82
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	83	#else
91	# define VAL64 NV	84
92	# define SvVAL64 SvNV	85	#include <sys/time.h>
93	# define newSVval64 newSVnv	86	#include <sys/select.h>
		87	#include <unistd.h>
		88	#include <utime.h>
		89	#include <signal.h>
		90
		91	#define EIO_STRUCT_STAT Stat_t
		92
94	#endif	93	#endif
95		94
96	/*****************************************************************************/	95	/*****************************************************************************/
97		96
98	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
108		107
109	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	109	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	110	typedef int aio_wfd; /* write file descriptor */
112		111
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		113
115	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
116	SV *callback; \	115	SV *callback; \
117	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
118	STRLEN stroffset; \	118	STRLEN stroffset; \
119	SV *self;	119	SV *self;
120		120
121	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
122		122
		123	#include "libeio/config.h"
123	#include "libeio/eio.h"	124	#include "libeio/eio.h"
124		125
125	#ifndef POSIX_FADV_NORMAL	126	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	127	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	128	static void req_destroy (eio_req *grp);
128	#endif	129	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		130
145	#ifndef POSIX_MADV_NORMAL	131	#include "libeio/eio.c"
146	# define POSIX_MADV_NORMAL 0
147	# define NO_MADVISE 1
148	#endif
149	#ifndef POSIX_MADV_SEQUENTIAL
150	# define POSIX_MADV_SEQUENTIAL 0
151	#endif
152	#ifndef POSIX_MADV_RANDOM
153	# define POSIX_MADV_RANDOM 0
154	#endif
155	#ifndef POSIX_MADV_WILLNEED
156	# define POSIX_MADV_WILLNEED 0
157	#endif
158	#ifndef POSIX_MADV_DONTNEED
159	# define POSIX_MADV_DONTNEED 0
160	#endif
161		132
162	#ifndef ST_NODEV	133	#if !HAVE_POSIX_FADVISE
163	# define ST_NODEV 0	134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
164	#endif	135	#endif
165	#ifndef ST_NOEXEC
166	# define ST_NOEXEC 0
167	#endif
168	#ifndef ST_SYNCHRONOUS
169	# define ST_SYNCHRONOUS 0
170	#endif
171	#ifndef ST_MANDLOCK
172	# define ST_MANDLOCK 0
173	#endif
174	#ifndef ST_WRITE
175	# define ST_WRITE 0
176	#endif
177	#ifndef ST_APPEND
178	# define ST_APPEND 0
179	#endif
180	#ifndef ST_IMMUTABLE
181	# define ST_IMMUTABLE 0
182	#endif
183	#ifndef ST_NOATIME
184	# define ST_NOATIME 0
185	#endif
186	#ifndef ST_NODIRATIME
187	# define ST_NODIRATIME 0
188	#endif
189	#ifndef ST_RELATIME
190	# define ST_RELATIME 0
191	#endif
192		136
193	#ifndef MCL_CURRENT	137	#if !HAVE_POSIX_MADVISE
194	# define MCL_CURRENT 0	138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
195	#endif
196	#ifndef MCL_FUTURE
197	# define MCL_FUTURE 0
198	#endif	139	#endif
199		140
200	#ifndef MAP_ANONYMOUS	141	#ifndef MAP_ANONYMOUS
201	# ifdef MAP_ANON	142	# ifdef MAP_ANON
202	# define MAP_ANONYMOUS MAP_ANON	143	# define MAP_ANONYMOUS MAP_ANON
203	# else	144	# else
204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
205	# endif	146	# endif
206	#endif	147	#endif
207	#ifndef MAP_HUGETLB
208	# define MAP_HUGETLB 0
209	#endif
210	#ifndef MAP_LOCKED
211	# define MAP_LOCKED 0
212	#endif
213	#ifndef MAP_NORESERVE
214	# define MAP_NORESERVE 0
215	#endif
216	#ifndef MAP_POPULATE
217	# define MAP_POPULATE 0
218	#endif
219	#ifndef MAP_NONBLOCK
220	# define MAP_NONBLOCK 0
221	#endif
222		148
223	#ifndef PAGESIZE	149	/* defines all sorts of constants to 0 unless they are already defined */
		150	/* also provides const_iv_ and const_niv_ macros for them */
		151	#include "def0.h"
		152
		153	#ifndef makedev
		154	# define makedev(maj,min) (((maj) << 8) | (min))
		155	#endif
		156	#ifndef major
		157	# define major(dev) ((dev) >> 8)
		158	#endif
		159	#ifndef minor
		160	# define minor(dev) ((dev) & 0xff)
		161	#endif
		162
		163	#if PAGESIZE <= 0
224	# define PAGESIZE sysconf (_SC_PAGESIZE)	164	# define PAGESIZE sysconf (_SC_PAGESIZE)
225	#endif	165	#endif
226		166
227	static int req_invoke (eio_req *req);	167	/*****************************************************************************/
228	#define EIO_FINISH(req) req_invoke (req)	168
229	static void req_destroy (eio_req *grp);	169	static void
230	#define EIO_DESTROY(req) req_destroy (req)	170	fiemap (eio_req *req)
		171	{
		172	req->result = -1;
		173
		174	#if HAVE_FIEMAP
		175	/* assume some c99 */
		176	struct fiemap *fiemap = 0;
		177	size_t end_offset;
		178	int count = req->int3;
		179
		180	req->flags |= EIO_FLAG_PTR1_FREE;
		181
		182	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		183	/* increase in 3.5kb steps */
		184	if (count < 0)
		185	count = 8;
		186
		187	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		188	errno = ENOMEM;
		189	if (!fiemap)
		190	return;
		191
		192	req->ptr1 = fiemap;
		193
		194	fiemap->fm_start = req->offs;
		195	fiemap->fm_length = req->size;
		196	fiemap->fm_flags = req->int2;
		197	fiemap->fm_extent_count = count;
		198
		199	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		200	return;
		201
		202	if (req->int3 >= 0 /* not autosizing */
		203	|| !fiemap->fm_mapped_extents /* no more extents */
		204	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		205	goto done;
		206
		207	/* else we have to loop -
		208	* it would be tempting (actually I tried that first) to just query the
		209	* number of extents needed, but linux often feels like not returning all
		210	* extents, without telling us it left any out. this complicates
		211	* this quite a bit.
		212	*/
		213
		214	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		215
		216	for (;;)
		217	{
		218	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		219	char scratch[3072];
		220	struct fiemap *incmap = (struct fiemap *)scratch;
		221
		222	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		223	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		224	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		225	incmap->fm_flags = fiemap->fm_flags;
		226	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		227
		228	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		229	return;
		230
		231	if (!incmap->fm_mapped_extents)
		232	goto done;
		233
		234	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		235	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		236	errno = ENOMEM;
		237	if (!fiemap)
		238	return;
		239
		240	req->ptr1 = fiemap;
		241
		242	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		243	{
		244	struct fiemap_extent *e = incmap->fm_extents + count;
		245
		246	if (e->fe_logical + e->fe_length >= end_offset)
		247	goto done;
		248
		249	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		250
		251	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		252	goto done;
		253
		254	}
		255	}
		256
		257	done:
		258	req->result = 0;
		259
		260	#else
		261	errno = ENOSYS;
		262	#endif
		263	}
		264
		265	/*****************************************************************************/
231		266
232	enum {	267	enum {
233	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
234	};	269	};
235		270
236	#include "libeio/eio.c"
237
238	typedef eio_req *aio_req;	271	typedef eio_req *aio_req;
239	typedef eio_req *aio_req_ornot;	272	typedef eio_req *aio_req_ornot;
		273	typedef eio_wd aio_wd;
240		274
241	static SV *on_next_submit;	275	static SV *on_next_submit;
242	static int next_pri = EIO_PRI_DEFAULT;	276	static int next_pri = EIO_PRI_DEFAULT;
243	static int max_outstanding;	277	static int max_outstanding;
244		278
245	static s_epipe respipe;	279	static s_epipe respipe;
246		280
247	static void req_destroy (aio_req req);	281	static void req_destroy (aio_req req);
248	static void req_cancel (aio_req req);	282	static void req_cancel (aio_req req);
249		283
250	static void want_poll (void)	284	static void
		285	want_poll (void)
251	{	286	{
252	/* write a dummy byte to the pipe so fh becomes ready */	287	/* write a dummy byte to the pipe so fh becomes ready */
253	s_epipe_signal (&respipe);	288	s_epipe_signal (&respipe);
254	}	289	}
255		290
256	static void done_poll (void)	291	static void
		292	done_poll (void)
257	{	293	{
258	/* read any signals sent by the worker threads */	294	/* read any signals sent by the worker threads */
259	s_epipe_drain (&respipe);	295	s_epipe_drain (&respipe);
260	}	296	}
261		297
262	/* must be called at most once */	298	/* must be called at most once */
		299	static SV *
263	static SV *req_sv (aio_req req, HV *stash)	300	req_sv (aio_req req, HV *stash)
264	{	301	{
265	if (!req->self)	302	if (!req->self)
266	{	303	{
267	req->self = (SV *)newHV ();	304	req->self = (SV *)newHV ();
268	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	305	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
269	}	306	}
270		307
271	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	308	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
272	}	309	}
273		310
274	static aio_req SvAIO_REQ (SV *sv)	311	static SV *
		312	newSVaio_wd (aio_wd wd)
		313	{
		314	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		315	}
		316
		317	static aio_req
		318	SvAIO_REQ (SV *sv)
275	{	319	{
276	MAGIC *mg;	320	MAGIC *mg;
277		321
278	if (!SvROK (sv)	322	if (!SvROK (sv)
		323	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	324	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
280	&& SvSTASH (SvRV (sv)) != aio_req_stash	325	&& SvSTASH (SvRV (sv)) != aio_req_stash
281	&& !sv_derived_from (sv, "IO::AIO::REQ")))	326	&& !sv_derived_from (sv, "IO::AIO::REQ")))
282	croak ("object of class IO::AIO::REQ expected");	327	croak ("object of class IO::AIO::REQ expected");
283		328
284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	329	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
285		330
286	return mg ? (aio_req)mg->mg_ptr : 0;	331	return mg ? (aio_req)mg->mg_ptr : 0;
287	}	332	}
288		333
		334	static aio_wd
		335	SvAIO_WD (SV *sv)
		336	{
		337	if (!SvROK (sv)
		338	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		339	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		340	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		341
		342	return (aio_wd)(long)SvIVX (SvRV (sv));
		343	}
		344
		345	static SV *
		346	newmortalFH (int fd, int flags)
		347	{
		348	if (fd < 0)
		349	return &PL_sv_undef;
		350
		351	GV *gv = (GV *)sv_newmortal ();
		352	char sym[64];
		353	int symlen;
		354
		355	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		356	gv_init (gv, aio_stash, sym, symlen, 0);
		357
		358	symlen = snprintf (
		359	sym,
		360	sizeof (sym),
		361	"%s&=%d",
		362	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		363	fd
		364	);
		365
		366	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		367	? (SV *)gv : &PL_sv_undef;
		368	}
		369
		370	static void
289	static void aio_grp_feed (aio_req grp)	371	aio_grp_feed (aio_req grp)
290	{	372	{
291	if (grp->sv2 && SvOK (grp->sv2))	373	if (grp->sv2 && SvOK (grp->sv2))
292	{	374	{
293	dSP;	375	dSP;
294		376
…		…
302	FREETMPS;	384	FREETMPS;
303	LEAVE;	385	LEAVE;
304	}	386	}
305	}	387	}
306		388
		389	static void
307	static void req_submit (eio_req *req)	390	req_submit (eio_req *req)
308	{	391	{
309	eio_submit (req);	392	eio_submit (req);
310		393
311	if (expect_false (on_next_submit))	394	if (expect_false (on_next_submit))
312	{	395	{
…		…
319	PUTBACK;	402	PUTBACK;
320	call_sv (cb, G_DISCARD | G_EVAL);	403	call_sv (cb, G_DISCARD | G_EVAL);
321	}	404	}
322	}	405	}
323		406
		407	static int
324	static int req_invoke (eio_req *req)	408	req_invoke (eio_req *req)
325	{	409	{
326	if (req->flags & FLAG_SV2_RO_OFF)	410	if (req->flags & FLAG_SV2_RO_OFF)
327	SvREADONLY_off (req->sv2);	411	SvREADONLY_off (req->sv2);
328		412
329	if (!EIO_CANCELLED (req) && req->callback)	413	if (!EIO_CANCELLED (req) && req->callback)
…		…
340	/* do not recreate the result IV from scratch each time */	424	/* do not recreate the result IV from scratch each time */
341	if (expect_true (sv_result_cache))	425	if (expect_true (sv_result_cache))
342	{	426	{
343	sv_result = sv_result_cache; sv_result_cache = 0;	427	sv_result = sv_result_cache; sv_result_cache = 0;
344	SvIV_set (sv_result, req->result);	428	SvIV_set (sv_result, req->result);
		429	SvIOK_only (sv_result);
345	}	430	}
346	else	431	else
347	{	432	{
348	sv_result = newSViv (req->result);	433	sv_result = newSViv (req->result);
349	SvREADONLY_on (sv_result);	434	SvREADONLY_on (sv_result);
350	}	435	}
351		436
352	switch (req->type)	437	switch (req->type)
353	{	438	{
		439	case EIO_WD_OPEN:
		440	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		441	break;
		442
354	case EIO_READDIR:	443	case EIO_READDIR:
355	{	444	{
356	SV *rv = &PL_sv_undef;	445	SV *rv = &PL_sv_undef;
357		446
358	if (req->result >= 0)	447	if (req->result >= 0)
…		…
411	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	500	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
412	}	501	}
413	break;	502	break;
414		503
415	case EIO_OPEN:	504	case EIO_OPEN:
416	{	505	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
417	/* convert fd to fh */
418	SV *fh = &PL_sv_undef;
419
420	if (req->result >= 0)
421	{
422	GV *gv = (GV *)sv_newmortal ();
423	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
424	char sym [64];
425	int symlen;
426
427	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
428	gv_init (gv, aio_stash, sym, symlen, 0);
429
430	symlen = snprintf (
431	sym,
432	sizeof (sym),
433	"%s&=%d",
434	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
435	(int)req->result
436	);
437
438	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
439	fh = (SV *)gv;
440	}
441
442	PUSHs (fh);
443	}
444	break;	506	break;
445		507
446	case EIO_STATVFS:	508	case EIO_STATVFS:
447	case EIO_FSTATVFS:	509	case EIO_FSTATVFS:
448	{	510	{
449	SV *rv = &PL_sv_undef;	511	SV *rv = &PL_sv_undef;
450		512
		513	#ifndef _WIN32
451	if (req->result >= 0)	514	if (req->result >= 0)
452	{	515	{
453	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	516	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
454	HV *hv = newHV ();	517	HV *hv = newHV ();
		518	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		519	* chooses to make it a struct.
		520	*/
		521	unsigned long fsid = 0;
		522	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
455		523
456	rv = sv_2mortal (newRV_noinc ((SV *)hv));	524	rv = sv_2mortal (newRV_noinc ((SV *)hv));
457		525
458	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	526	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
459	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	527	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
461	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	529	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
462	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	530	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
463	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	531	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
464	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	532	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
465	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	533	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
466	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	534	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
467	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	535	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
468	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	536	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
469	}	537	}
		538	#endif
470		539
471	PUSHs (rv);	540	PUSHs (rv);
472	}	541	}
473		542
474	break;	543	break;
…		…
490	case EIO_NOP:	559	case EIO_NOP:
491	case EIO_BUSY:	560	case EIO_BUSY:
492	break;	561	break;
493		562
494	case EIO_READLINK:	563	case EIO_READLINK:
		564	case EIO_REALPATH:
495	if (req->result > 0)	565	if (req->result > 0)
496	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	566	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
497	break;	567	break;
498		568
499	case EIO_STAT:	569	case EIO_STAT:
500	case EIO_LSTAT:	570	case EIO_LSTAT:
501	case EIO_FSTAT:	571	case EIO_FSTAT:
502	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	572	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		573
503	PL_laststatval = req->result;	574	if (!(PL_laststatval = req->result))
		575	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
504	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	576	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		577
505	PUSHs (sv_result);	578	PUSHs (sv_result);
		579	break;
		580
		581	case EIO_SEEK:
		582	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
506	break;	583	break;
507		584
508	case EIO_READ:	585	case EIO_READ:
509	{	586	{
510	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	587	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
513	SvSETMAGIC (req->sv2);	590	SvSETMAGIC (req->sv2);
514	PUSHs (sv_result);	591	PUSHs (sv_result);
515	}	592	}
516	break;	593	break;
517		594
		595	case EIO_CUSTOM:
		596	if (req->feed == fiemap)
		597	{
		598	#if HAVE_FIEMAP
		599	if (!req->result)
		600	{
		601	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		602
		603	if (fiemap->fm_extent_count)
		604	{
		605	AV *av = newAV ();
		606	int i;
		607
		608	while (fiemap->fm_mapped_extents)
		609	{
		610	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		611	AV *ext_av = newAV ();
		612
		613	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		614	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		615	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		616	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		617
		618	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		619	}
		620
		621	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		622	}
		623	else
		624	{
		625	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		626	PUSHs (sv_result);
		627	}
		628	}
		629	#endif
		630	}
		631	else
		632	PUSHs (sv_result);
		633	break;
		634
518	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	635	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
519	if (req->result > 0)	636	if (req->result > 0)
520	SvIV_set (sv_result, 0);	637	SvIV_set (sv_result, 0);
521	/* FALLTHROUGH */	638	/* FALLTHROUGH */
522		639
523	default:	640	default:
…		…
543	}	660	}
544		661
545	return !!SvTRUE (ERRSV);	662	return !!SvTRUE (ERRSV);
546	}	663	}
547		664
		665	static void
548	static void req_destroy (aio_req req)	666	req_destroy (aio_req req)
549	{	667	{
550	if (req->self)	668	if (req->self)
551	{	669	{
552	sv_unmagic (req->self, PERL_MAGIC_ext);	670	sv_unmagic (req->self, PERL_MAGIC_ext);
553	SvREFCNT_dec (req->self);	671	SvREFCNT_dec (req->self);
554	}	672	}
555		673
556	SvREFCNT_dec (req->sv1);	674	SvREFCNT_dec (req->sv1);
557	SvREFCNT_dec (req->sv2);	675	SvREFCNT_dec (req->sv2);
		676	SvREFCNT_dec (req->sv3);
		677	SvREFCNT_dec (req->sv4);
558	SvREFCNT_dec (req->callback);	678	SvREFCNT_dec (req->callback);
559		679
560	Safefree (req);	680	free (req);
561	}	681	}
562		682
		683	static void
563	static void req_cancel_subs (aio_req grp)	684	req_cancel_subs (aio_req grp)
564	{	685	{
565	aio_req sub;
566
567	if (grp->type != EIO_GROUP)	686	if (grp->type != EIO_GROUP)
568	return;	687	return;
569		688
570	SvREFCNT_dec (grp->sv2);	689	SvREFCNT_dec (grp->sv2);
571	grp->sv2 = 0;	690	grp->sv2 = 0;
572		691
573	eio_grp_cancel (grp);	692	eio_grp_cancel (grp);
574	}	693	}
575		694
576	static void	695	static void ecb_cold
577	create_respipe (void)	696	create_respipe (void)
578	{	697	{
579	if (s_epipe_renew (&respipe))	698	if (s_epipe_renew (&respipe))
580	croak ("IO::AIO: unable to initialize result pipe");	699	croak ("IO::AIO: unable to initialize result pipe");
581	}	700	}
582		701
583	static void poll_wait (void)	702	static void
		703	poll_wait (void)
584	{	704	{
585	while (eio_nreqs ())	705	while (eio_nreqs ())
586	{	706	{
587	int size;	707	int size;
588		708
589	X_LOCK (reslock);	709	X_LOCK (EIO_POOL->reslock);
590	size = res_queue.size;	710	size = EIO_POOL->res_queue.size;
591	X_UNLOCK (reslock);	711	X_UNLOCK (EIO_POOL->reslock);
592		712
593	if (size)	713	if (size)
594	return;	714	return;
595		715
596	etp_maybe_start_thread ();	716	etp_maybe_start_thread (EIO_POOL);
597		717
598	s_epipe_wait (&respipe);	718	s_epipe_wait (&respipe);
599	}	719	}
600	}	720	}
601		721
602	static int poll_cb (void)	722	static int
		723	poll_cb (void)
603	{	724	{
604	for (;;)	725	for (;;)
605	{	726	{
606	int res = eio_poll ();	727	int res = eio_poll ();
607		728
…		…
613		734
614	poll_wait ();	735	poll_wait ();
615	}	736	}
616	}	737	}
617		738
618	static void atfork_child (void)	739	static void ecb_cold
		740	reinit (void)
619	{	741	{
620	create_respipe ();	742	create_respipe ();
		743
		744	if (eio_init (want_poll, done_poll) < 0)
		745	croak ("IO::AIO: unable to initialise eio library");
621	}	746	}
622		747
623	/*****************************************************************************/	748	/*****************************************************************************/
624		749
625	#if !_POSIX_MAPPED_FILES	750	#if !_POSIX_MAPPED_FILES
626	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	751	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
627	# define munmap(addr,length) (errno = ENOSYS, -1)	752	# define munmap(addr,length) EIO_ENOSYS ()
		753	#endif
		754
		755	#if !_POSIX_MEMORY_PROTECTION
		756	# define mprotect(addr,len,prot) EIO_ENOSYS ()
628	#endif	757	#endif
629		758
630	#define MMAP_MAGIC PERL_MAGIC_ext	759	#define MMAP_MAGIC PERL_MAGIC_ext
631		760
632	static int	761	static int ecb_cold
633	mmap_free (pTHX_ SV *sv, MAGIC *mg)	762	mmap_free (pTHX_ SV *sv, MAGIC *mg)
634	{	763	{
635	int old_errno = errno;	764	int old_errno = errno;
636	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	765	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
637	errno = old_errno;	766	errno = old_errno;
…		…
661	{	790	{
662	SvGETMAGIC (cb_sv);	791	SvGETMAGIC (cb_sv);
663	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	792	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
664	}	793	}
665		794
		795	static aio_req ecb_noinline
		796	dreq (SV *callback)
		797	{
		798	SV *cb_cv;
		799	aio_req req;
		800	int req_pri = next_pri;
		801	next_pri = EIO_PRI_DEFAULT;
		802
		803	cb_cv = get_cb (callback);
		804
		805	req = calloc (sizeof (*req), 1);
		806	if (!req)
		807	croak ("out of memory during eio_req allocation");
		808
		809	req->callback = SvREFCNT_inc (cb_cv);
		810	req->pri = req_pri;
		811
		812	return req;
		813	}
		814
666	#define dREQ \	815	#define dREQ \
667	SV *cb_cv; \	816	aio_req req = dreq (callback); \
668	aio_req req; \
669	int req_pri = next_pri; \
670	next_pri = EIO_PRI_DEFAULT; \
671	\
672	cb_cv = get_cb (callback); \
673	\
674	Newz (0, req, 1, eio_req); \
675	if (!req) \
676	croak ("out of memory during eio_req allocation"); \
677	\
678	req->callback = SvREFCNT_inc (cb_cv); \
679	req->pri = req_pri
680		817
681	#define REQ_SEND \	818	#define REQ_SEND \
682	PUTBACK; \	819	PUTBACK; \
683	req_submit (req); \	820	req_submit (req); \
684	SPAGAIN; \	821	SPAGAIN; \
685	\	822	\
686	if (GIMME_V != G_VOID) \	823	if (GIMME_V != G_VOID) \
687	XPUSHs (req_sv (req, aio_req_stash));	824	XPUSHs (req_sv (req, aio_req_stash));
688		825
		826	ecb_inline void
		827	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		828	{
		829	if (expect_false (SvROK (path)))
		830	{
		831	SV *rv = SvRV (path);
		832	SV *wdob;
		833
		834	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		835	{
		836	path = AvARRAY (rv)[1];
		837	wdob = AvARRAY (rv)[0];
		838
		839	if (SvOK (wdob))
		840	{
		841	*wd = SvAIO_WD (wdob);
		842	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		843	}
		844	else
		845	*wd = EIO_INVALID_WD;
		846	}
		847	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		848	{
		849	*wd = (aio_wd)(long)SvIVX (rv);
		850	*wdsv = SvREFCNT_inc_NN (rv);
		851	*ptr = ".";
		852	return; /* path set to "." */
		853	}
		854	else
		855	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		856	}
		857
		858	*pathsv = newSVsv (path);
		859	*ptr = SvPVbyte_nolen (*pathsv);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_path1 (aio_req req, SV *path)
		864	{
		865	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		866	}
		867
		868	static void ecb_noinline
		869	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		870	{
		871	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		872
		873	switch (SvTYPE (rv))
		874	{
		875	case SVt_PVIO:
		876	case SVt_PVLV:
		877	case SVt_PVGV:
		878	req->type = type_fh;
		879	req->sv1 = newSVsv (fh_or_path);
		880	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		881	break;
		882
		883	default:
		884	req->type = type_path;
		885	req_set_path1 (req, fh_or_path);
		886	break;
		887	}
		888	}
		889
		890	XS(boot_IO__AIO) ecb_cold;
		891
689	MODULE = IO::AIO PACKAGE = IO::AIO	892	MODULE = IO::AIO PACKAGE = IO::AIO
690		893
691	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
692		895
693	BOOT:	896	BOOT:
…		…
697	IV iv;	900	IV iv;
698	} *civ, const_iv[] = {	901	} *civ, const_iv[] = {
699	# define const_niv(name, value) { # name, (IV) value },	902	# define const_niv(name, value) { # name, (IV) value },
700	# define const_iv(name) { # name, (IV) name },	903	# define const_iv(name) { # name, (IV) name },
701	# define const_eio(name) { # name, (IV) EIO_ ## name },	904	# define const_eio(name) { # name, (IV) EIO_ ## name },
		905
		906	/* you have to re-run ./gendef0 after adding/removing any constants here */
		907	/* the first block can be undef if missing */
		908	const_iv (ENOSYS)
702	const_iv (EXDEV)	909	const_iv (EXDEV)
703	const_iv (ENOSYS)	910	const_iv (EBADR)
		911
		912	/* for lseek */
		913	const_iv (SEEK_DATA)
		914	const_iv (SEEK_HOLE)
		915
		916	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		917	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		918	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		919	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		920	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		921	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		922
		923	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		924	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		928
		929	/* the second block will be 0 when missing */
704	const_iv (O_RDONLY)	930	const_iv (O_RDONLY)
705	const_iv (O_WRONLY)	931	const_iv (O_WRONLY)
706	const_iv (O_RDWR)	932	const_iv (O_RDWR)
707	const_iv (O_CREAT)	933	const_iv (O_CREAT)
708	const_iv (O_TRUNC)	934	const_iv (O_TRUNC)
709	const_iv (O_EXCL)	935	const_iv (O_EXCL)
710	const_iv (O_APPEND)	936	const_iv (O_APPEND)
711	#ifndef _WIN32	937
		938	const_iv (O_ASYNC)
		939	const_iv (O_DIRECT)
		940	const_iv (O_NOATIME)
		941
		942	const_iv (O_CLOEXEC)
		943	const_iv (O_NOCTTY)
		944	const_iv (O_NOFOLLOW)
		945	const_iv (O_NONBLOCK)
		946	const_iv (O_EXEC)
		947	const_iv (O_SEARCH)
		948	const_iv (O_DIRECTORY)
		949	const_iv (O_DSYNC)
		950	const_iv (O_RSYNC)
		951	const_iv (O_SYNC)
		952	const_iv (O_PATH)
		953	const_iv (O_TMPFILE)
		954	const_iv (O_TTY_INIT)
		955
712	const_iv (S_IFIFO)	956	const_iv (S_IFIFO)
713	#endif	957	const_iv (S_IFCHR)
714	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	958	const_iv (S_IFBLK)
715	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	959	const_iv (S_IFLNK)
716	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	960	const_iv (S_IFREG)
717	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	961	const_iv (S_IFDIR)
718	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	962	const_iv (S_IFWHT)
719	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	963	const_iv (S_IFSOCK)
720		964	const_iv (S_IFMT)
721	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
722	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
723	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
724	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
725	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
726		965
727	const_iv (ST_RDONLY)	966	const_iv (ST_RDONLY)
728	const_iv (ST_NOSUID)	967	const_iv (ST_NOSUID)
729	const_iv (ST_NODEV)	968	const_iv (ST_NODEV)
730	const_iv (ST_NOEXEC)	969	const_iv (ST_NOEXEC)
…		…
735	const_iv (ST_IMMUTABLE)	974	const_iv (ST_IMMUTABLE)
736	const_iv (ST_NOATIME)	975	const_iv (ST_NOATIME)
737	const_iv (ST_NODIRATIME)	976	const_iv (ST_NODIRATIME)
738	const_iv (ST_RELATIME)	977	const_iv (ST_RELATIME)
739		978
		979	const_iv (PROT_NONE)
740	const_iv (PROT_EXEC)	980	const_iv (PROT_EXEC)
741	const_iv (PROT_NONE)
742	const_iv (PROT_READ)	981	const_iv (PROT_READ)
743	const_iv (PROT_WRITE)	982	const_iv (PROT_WRITE)
744		983
745	/*const_iv (MAP_FIXED)*/
746	const_iv (MAP_PRIVATE)	984	const_iv (MAP_PRIVATE)
747	const_iv (MAP_SHARED)	985	const_iv (MAP_SHARED)
		986	const_iv (MAP_FIXED)
748	const_iv (MAP_ANONYMOUS)	987	const_iv (MAP_ANONYMOUS)
749		988
750	/* linuxish */	989	/* linuxish */
751	const_iv (MAP_HUGETLB)
752	const_iv (MAP_LOCKED)	990	const_iv (MAP_LOCKED)
753	const_iv (MAP_NORESERVE)	991	const_iv (MAP_NORESERVE)
754	const_iv (MAP_POPULATE)	992	const_iv (MAP_POPULATE)
755	const_iv (MAP_NONBLOCK)	993	const_iv (MAP_NONBLOCK)
		994	const_iv (MAP_GROWSDOWN)
		995	const_iv (MAP_32BIT)
		996	const_iv (MAP_HUGETLB)
		997	const_iv (MAP_STACK)
756		998
		999	const_iv (FIEMAP_FLAG_SYNC)
		1000	const_iv (FIEMAP_FLAG_XATTR)
		1001	const_iv (FIEMAP_FLAGS_COMPAT)
		1002	const_iv (FIEMAP_EXTENT_LAST)
		1003	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1004	const_iv (FIEMAP_EXTENT_DELALLOC)
		1005	const_iv (FIEMAP_EXTENT_ENCODED)
		1006	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1007	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1008	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1009	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1010	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1011	const_iv (FIEMAP_EXTENT_MERGED)
		1012	const_iv (FIEMAP_EXTENT_SHARED)
		1013
		1014	const_iv (SPLICE_F_MOVE)
		1015	const_iv (SPLICE_F_NONBLOCK)
		1016	const_iv (SPLICE_F_MORE)
		1017	const_iv (SPLICE_F_GIFT)
		1018
		1019	/* these are libeio constants, and are independent of gendef0 */
		1020	const_eio (SEEK_SET)
		1021	const_eio (SEEK_CUR)
		1022	const_eio (SEEK_END)
		1023
757	const_iv (MCL_FUTURE)	1024	const_eio (MCL_FUTURE)
758	const_iv (MCL_CURRENT)	1025	const_eio (MCL_CURRENT)
759		1026
760	const_eio (MS_ASYNC)	1027	const_eio (MS_ASYNC)
761	const_eio (MS_INVALIDATE)	1028	const_eio (MS_INVALIDATE)
762	const_eio (MS_SYNC)	1029	const_eio (MS_SYNC)
763		1030
764	const_eio (MT_MODIFY)	1031	const_eio (MT_MODIFY)
765		1032
766	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1033	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
767	const_eio (SYNC_FILE_RANGE_WRITE)	1034	const_eio (SYNC_FILE_RANGE_WRITE)
768	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1035	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1036
		1037	const_eio (FALLOC_FL_KEEP_SIZE)
		1038	const_eio (FALLOC_FL_PUNCH_HOLE)
		1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1040	const_eio (FALLOC_FL_ZERO_RANGE)
769		1041
770	const_eio (READDIR_DENTS)	1042	const_eio (READDIR_DENTS)
771	const_eio (READDIR_DIRS_FIRST)	1043	const_eio (READDIR_DIRS_FIRST)
772	const_eio (READDIR_STAT_ORDER)	1044	const_eio (READDIR_STAT_ORDER)
773	const_eio (READDIR_FOUND_UNKNOWN)	1045	const_eio (READDIR_FOUND_UNKNOWN)
…		…
784	};	1056	};
785		1057
786	aio_stash = gv_stashpv ("IO::AIO" , 1);	1058	aio_stash = gv_stashpv ("IO::AIO" , 1);
787	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1059	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
788	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1060	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1061	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
789		1062
790	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1063	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
791	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1064	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
792		1065
793	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1066	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
794		1067
795	create_respipe ();	1068	reinit ();
796
797	if (eio_init (want_poll, done_poll) < 0)
798	croak ("IO::AIO: unable to initialise eio library");
799
800	/* atfork child called in fifo order, so before eio's handler */
801	X_THREAD_ATFORK (0, 0, atfork_child);
802	}	1069	}
803		1070
804	void	1071	void
		1072	reinit ()
		1073	PROTOTYPE:
		1074
		1075	void
805	max_poll_reqs (int nreqs)	1076	max_poll_reqs (unsigned int nreqs)
806	PROTOTYPE: $	1077	PROTOTYPE: $
807	CODE:	1078	CODE:
808	eio_set_max_poll_reqs (nreqs);	1079	eio_set_max_poll_reqs (nreqs);
809		1080
810	void	1081	void
…		…
812	PROTOTYPE: $	1083	PROTOTYPE: $
813	CODE:	1084	CODE:
814	eio_set_max_poll_time (nseconds);	1085	eio_set_max_poll_time (nseconds);
815		1086
816	void	1087	void
817	min_parallel (int nthreads)	1088	min_parallel (unsigned int nthreads)
818	PROTOTYPE: $	1089	PROTOTYPE: $
819	CODE:	1090	CODE:
820	eio_set_min_parallel (nthreads);	1091	eio_set_min_parallel (nthreads);
821		1092
822	void	1093	void
823	max_parallel (int nthreads)	1094	max_parallel (unsigned int nthreads)
824	PROTOTYPE: $	1095	PROTOTYPE: $
825	CODE:	1096	CODE:
826	eio_set_max_parallel (nthreads);	1097	eio_set_max_parallel (nthreads);
827		1098
828	void	1099	void
829	max_idle (int nthreads)	1100	max_idle (unsigned int nthreads)
830	PROTOTYPE: $	1101	PROTOTYPE: $
831	CODE:	1102	CODE:
832	eio_set_max_idle (nthreads);	1103	eio_set_max_idle (nthreads);
833		1104
834	void	1105	void
		1106	idle_timeout (unsigned int seconds)
		1107	PROTOTYPE: $
		1108	CODE:
		1109	eio_set_idle_timeout (seconds);
		1110
		1111	void
835	max_outstanding (int maxreqs)	1112	max_outstanding (unsigned int maxreqs)
836	PROTOTYPE: $	1113	PROTOTYPE: $
837	CODE:	1114	CODE:
838	max_outstanding = maxreqs;	1115	max_outstanding = maxreqs;
839		1116
840	void	1117	void
841	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1118	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
842	PROTOTYPE: $$$;$
843	PPCODE:	1119	PPCODE:
844	{	1120	{
845	dREQ;	1121	dREQ;
846		1122
		1123	req->type = EIO_WD_OPEN;
		1124	req_set_path1 (req, pathname);
		1125
		1126	REQ_SEND;
		1127	}
		1128
		1129	void
		1130	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1131	PPCODE:
		1132	{
		1133	dREQ;
		1134
847	req->type = EIO_OPEN;	1135	req->type = EIO_OPEN;
848	req->sv1 = newSVsv (pathname);	1136	req_set_path1 (req, pathname);
849	req->ptr1 = SvPVbyte_nolen (req->sv1);
850	req->int1 = flags;	1137	req->int1 = flags;
851	req->int2 = mode;	1138	req->int2 = mode;
852		1139
853	REQ_SEND;	1140	REQ_SEND;
854	}	1141	}
855		1142
856	void	1143	void
857	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1144	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
858	PROTOTYPE: $;$
859	ALIAS:	1145	ALIAS:
860	aio_fsync = EIO_FSYNC	1146	aio_fsync = EIO_FSYNC
861	aio_fdatasync = EIO_FDATASYNC	1147	aio_fdatasync = EIO_FDATASYNC
		1148	aio_syncfs = EIO_SYNCFS
862	PPCODE:	1149	PPCODE:
863	{	1150	{
864	int fd = s_fileno_croak (fh, 0);	1151	int fd = s_fileno_croak (fh, 0);
865	dREQ;	1152	dREQ;
866		1153
867	req->type = ix;	1154	req->type = ix;
868	req->sv1 = newSVsv (fh);	1155	req->sv1 = newSVsv (fh);
869	req->int1 = fd;	1156	req->int1 = fd;
870		1157
871	REQ_SEND (req);	1158	REQ_SEND;
872	}	1159	}
873		1160
874	void	1161	void
875	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1162	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
876	PROTOTYPE: $$$$;$
877	PPCODE:	1163	PPCODE:
878	{	1164	{
879	int fd = s_fileno_croak (fh, 0);	1165	int fd = s_fileno_croak (fh, 0);
880	dREQ;	1166	dREQ;
881		1167
882	req->type = EIO_SYNC_FILE_RANGE;	1168	req->type = EIO_SYNC_FILE_RANGE;
883	req->sv1 = newSVsv (fh);	1169	req->sv1 = newSVsv (fh);
884	req->int1 = fd;	1170	req->int1 = fd;
885	req->offs = offset;	1171	req->offs = offset;
886	req->size = nbytes;	1172	req->size = nbytes;
887	req->int2 = flags;	1173	req->int2 = flags;
888		1174
889	REQ_SEND (req);	1175	REQ_SEND;
890	}	1176	}
891		1177
892	void	1178	void
893	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1179	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
894	PROTOTYPE: $;$
895	PPCODE:	1180	PPCODE:
896	{	1181	{
897	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
898	int fd = s_fileno_croak (fh, 0);	1182	int fd = s_fileno_croak (fh, 0);
899	dREQ;	1183	dREQ;
900		1184
901	if (close_pipe < 0)	1185	req->type = EIO_FALLOCATE;
		1186	req->sv1 = newSVsv (fh);
		1187	req->int1 = fd;
		1188	req->int2 = mode;
		1189	req->offs = offset;
		1190	req->size = len;
		1191
		1192	REQ_SEND;
		1193	}
		1194
		1195	void
		1196	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1197	PPCODE:
		1198	{
		1199	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1200	int fd = s_fileno_croak (fh, 0);
		1201	dREQ;
		1202
		1203	if (expect_false (close_fd < 0))
902	{	1204	{
903	int pipefd [2];	1205	int pipefd [2];
904		1206
		1207	if (
		1208	#ifdef _WIN32
		1209	_pipe (pipefd, 1, _O_BINARY) < 0
		1210	#else
905	if (pipe (pipefd) < 0	1211	pipe (pipefd) < 0
906	|| close (pipefd [1]) < 0
907	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1212	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1213	#endif
		1214	|| close (pipefd [1]) < 0
		1215	)
908	abort (); /*D*/	1216	abort (); /*D*/
909		1217
910	close_pipe = pipefd [0];	1218	close_fd = pipefd [0];
911	}	1219	}
912		1220
913	req->type = EIO_DUP2;	1221	req->type = EIO_DUP2;
914	req->int1 = close_pipe;	1222	req->int1 = close_fd;
915	req->sv2 = newSVsv (fh);	1223	req->sv2 = newSVsv (fh);
916	req->int2 = fd;	1224	req->int2 = fd;
917		1225
918	REQ_SEND (req);	1226	REQ_SEND;
919	}	1227	}
920		1228
921	void	1229	void
		1230	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1231	PPCODE:
		1232	{
		1233	int fd = s_fileno_croak (fh, 0);
		1234	dREQ;
		1235
		1236	req->type = EIO_SEEK;
		1237	req->sv1 = newSVsv (fh);
		1238	req->int1 = fd;
		1239	req->offs = SvVAL64 (offset);
		1240	req->int2 = whence;
		1241
		1242	REQ_SEND;
		1243	}
		1244
		1245	void
922	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1246	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
923	ALIAS:	1247	ALIAS:
924	aio_read = EIO_READ	1248	aio_read = EIO_READ
925	aio_write = EIO_WRITE	1249	aio_write = EIO_WRITE
926	PROTOTYPE: $$$$$;$
927	PPCODE:	1250	PPCODE:
928	{	1251	{
929	STRLEN svlen;	1252	STRLEN svlen;
930	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1253	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
931	char *svptr = SvPVbyte (data, svlen);	1254	char *svptr = SvPVbyte (data, svlen);
…		…
944	len = svlen - dataoffset;	1267	len = svlen - dataoffset;
945	}	1268	}
946	else	1269	else
947	{	1270	{
948	/* read: check type and grow scalar as necessary */	1271	/* read: check type and grow scalar as necessary */
949	SvUPGRADE (data, SVt_PV);	1272	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
950	svptr = SvGROW (data, len + dataoffset + 1);	1273	svptr = sv_grow (data, len + dataoffset + 1);
		1274	else if (SvCUR (data) < len + dataoffset)
		1275	croak ("length + dataoffset outside of scalar, and cannot grow");
951	}	1276	}
952		1277
953	{	1278	{
954	dREQ;	1279	dREQ;
955		1280
…		…
971	REQ_SEND;	1296	REQ_SEND;
972	}	1297	}
973	}	1298	}
974		1299
975	void	1300	void
976	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1301	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
977	PROTOTYPE: $$;$	1302	ALIAS:
		1303	aio_readlink = EIO_READLINK
		1304	aio_realpath = EIO_REALPATH
978	PPCODE:	1305	PPCODE:
979	{	1306	{
980	SV *data;
981	dREQ;	1307	dREQ;
982		1308
983	req->type = EIO_READLINK;	1309	req->type = ix;
984	req->sv1 = newSVsv (path);	1310	req_set_path1 (req, pathname);
985	req->ptr1 = SvPVbyte_nolen (req->sv1);
986		1311
987	REQ_SEND;	1312	REQ_SEND;
988	}	1313	}
989		1314
990	void	1315	void
991	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1316	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
992	PROTOTYPE: $$$$;$
993	PPCODE:	1317	PPCODE:
994	{	1318	{
995	int ifd = s_fileno_croak (in_fh , 0);	1319	int ifd = s_fileno_croak (in_fh , 0);
996	int ofd = s_fileno_croak (out_fh, 1);	1320	int ofd = s_fileno_croak (out_fh, 1);
997	dREQ;	1321	dREQ;
998		1322
999	req->type = EIO_SENDFILE;	1323	req->type = EIO_SENDFILE;
1000	req->sv1 = newSVsv (out_fh);	1324	req->sv1 = newSVsv (out_fh);
1001	req->int1 = ofd;	1325	req->int1 = ofd;
…		…
1006		1330
1007	REQ_SEND;	1331	REQ_SEND;
1008	}	1332	}
1009		1333
1010	void	1334	void
1011	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1335	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1012	PROTOTYPE: $$$;$
1013	PPCODE:	1336	PPCODE:
1014	{	1337	{
1015	int fd = s_fileno_croak (fh, 0);	1338	int fd = s_fileno_croak (fh, 0);
1016	dREQ;	1339	dREQ;
1017		1340
1018	req->type = EIO_READAHEAD;	1341	req->type = EIO_READAHEAD;
1019	req->sv1 = newSVsv (fh);	1342	req->sv1 = newSVsv (fh);
1020	req->int1 = fd;	1343	req->int1 = fd;
…		…
1023		1346
1024	REQ_SEND;	1347	REQ_SEND;
1025	}	1348	}
1026		1349
1027	void	1350	void
1028	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1351	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1029	ALIAS:	1352	ALIAS:
1030	aio_stat = EIO_STAT	1353	aio_stat = EIO_STAT
1031	aio_lstat = EIO_LSTAT	1354	aio_lstat = EIO_LSTAT
1032	aio_statvfs = EIO_STATVFS	1355	aio_statvfs = EIO_STATVFS
1033	PPCODE:	1356	PPCODE:
1034	{	1357	{
1035	dREQ;	1358	dREQ;
1036		1359
1037	req->sv1 = newSVsv (fh_or_path);	1360	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1038
1039	if (SvPOK (req->sv1))
1040	{
1041	req->type = ix;
1042	req->ptr1 = SvPVbyte_nolen (req->sv1);
1043	}
1044	else
1045	{
1046	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1047	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1048	}
1049		1361
1050	REQ_SEND;	1362	REQ_SEND;
1051	}	1363	}
1052		1364
		1365	UV
		1366	major (UV dev)
		1367	ALIAS:
		1368	minor = 1
		1369	CODE:
		1370	RETVAL = ix ? major (dev) : minor (dev);
		1371	OUTPUT:
		1372	RETVAL
		1373
		1374	UV
		1375	makedev (UV maj, UV min)
		1376	CODE:
		1377	RETVAL = makedev (maj, min);
		1378	OUTPUT:
		1379	RETVAL
		1380
1053	void	1381	void
1054	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1382	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1055	PPCODE:	1383	PPCODE:
1056	{	1384	{
1057	dREQ;	1385	dREQ;
1058		1386
1059	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1387	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1060	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1388	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1061	req->sv1 = newSVsv (fh_or_path);	1389	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1062
1063	if (SvPOK (req->sv1))
1064	{
1065	req->type = EIO_UTIME;
1066	req->ptr1 = SvPVbyte_nolen (req->sv1);
1067	}
1068	else
1069	{
1070	req->type = EIO_FUTIME;
1071	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1072	}
1073		1390
1074	REQ_SEND;	1391	REQ_SEND;
1075	}	1392	}
1076		1393
1077	void	1394	void
1078	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1395	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1079	PPCODE:	1396	PPCODE:
1080	{	1397	{
1081	dREQ;	1398	dREQ;
1082		1399
1083	req->sv1 = newSVsv (fh_or_path);
1084	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1400	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1085		1401	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1086	if (SvPOK (req->sv1))
1087	{
1088	req->type = EIO_TRUNCATE;
1089	req->ptr1 = SvPVbyte_nolen (req->sv1);
1090	}
1091	else
1092	{
1093	req->type = EIO_FTRUNCATE;
1094	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1095	}
1096		1402
1097	REQ_SEND;	1403	REQ_SEND;
1098	}	1404	}
1099		1405
1100	void	1406	void
1101	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1407	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1102	ALIAS:
1103	aio_chmod = EIO_CHMOD
1104	aio_mkdir = EIO_MKDIR
1105	PPCODE:	1408	PPCODE:
1106	{	1409	{
1107	dREQ;	1410	dREQ;
1108		1411
1109	req->int2 = mode;	1412	req->int2 = mode;
1110	req->sv1 = newSVsv (fh_or_path);	1413	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1111
1112	if (SvPOK (req->sv1))
1113	{
1114	req->type = ix;
1115	req->ptr1 = SvPVbyte_nolen (req->sv1);
1116	}
1117	else
1118	{
1119	req->type = EIO_FCHMOD;
1120	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1121	}
1122		1414
1123	REQ_SEND;	1415	REQ_SEND;
1124	}	1416	}
1125		1417
1126	void	1418	void
1127	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1419	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1128	PPCODE:	1420	PPCODE:
1129	{	1421	{
1130	dREQ;	1422	dREQ;
1131		1423
1132	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1424	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1133	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1425	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1134	req->sv1 = newSVsv (fh_or_path);	1426	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1135
1136	if (SvPOK (req->sv1))
1137	{
1138	req->type = EIO_CHOWN;
1139	req->ptr1 = SvPVbyte_nolen (req->sv1);
1140	}
1141	else
1142	{
1143	req->type = EIO_FCHOWN;
1144	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1145	}
1146		1427
1147	REQ_SEND;	1428	REQ_SEND;
1148	}	1429	}
1149		1430
1150	void	1431	void
1151	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1432	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1152	PPCODE:	1433	PPCODE:
1153	{	1434	{
1154	dREQ;	1435	dREQ;
1155		1436
1156	req->type = EIO_READDIR;	1437	req->type = EIO_READDIR;
1157	req->sv1 = newSVsv (pathname);
1158	req->ptr1 = SvPVbyte_nolen (req->sv1);
1159	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1438	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1160		1439
1161	if (flags & EIO_READDIR_DENTS)	1440	if (flags & EIO_READDIR_DENTS)
1162	req->int1 |= EIO_READDIR_CUSTOM2;	1441	req->int1 |= EIO_READDIR_CUSTOM2;
1163		1442
		1443	req_set_path1 (req, pathname);
		1444
1164	REQ_SEND;	1445	REQ_SEND;
1165	}	1446	}
1166		1447
1167	void	1448	void
		1449	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1450	PPCODE:
		1451	{
		1452	dREQ;
		1453
		1454	req->type = EIO_MKDIR;
		1455	req->int2 = mode;
		1456	req_set_path1 (req, pathname);
		1457
		1458	REQ_SEND;
		1459	}
		1460
		1461	void
1168	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1462	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1169	ALIAS:	1463	ALIAS:
1170	aio_unlink = EIO_UNLINK	1464	aio_unlink = EIO_UNLINK
1171	aio_rmdir = EIO_RMDIR	1465	aio_rmdir = EIO_RMDIR
1172	aio_readdir = EIO_READDIR	1466	aio_readdir = EIO_READDIR
1173	PPCODE:	1467	PPCODE:
1174	{	1468	{
1175	dREQ;	1469	dREQ;
1176		1470
1177	req->type = ix;	1471	req->type = ix;
1178	req->sv1 = newSVsv (pathname);	1472	req_set_path1 (req, pathname);
1179	req->ptr1 = SvPVbyte_nolen (req->sv1);
1180		1473
1181	REQ_SEND;	1474	REQ_SEND;
1182	}	1475	}
1183		1476
1184	void	1477	void
1185	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1478	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1186	ALIAS:	1479	ALIAS:
1187	aio_link = EIO_LINK	1480	aio_link = EIO_LINK
1188	aio_symlink = EIO_SYMLINK	1481	aio_symlink = EIO_SYMLINK
1189	aio_rename = EIO_RENAME	1482	aio_rename = EIO_RENAME
1190	PPCODE:	1483	PPCODE:
1191	{	1484	{
		1485	eio_wd wd2 = 0;
1192	dREQ;	1486	dREQ;
1193		1487
1194	req->type = ix;	1488	req->type = ix;
1195	req->sv1 = newSVsv (oldpath);	1489	req_set_path1 (req, oldpath);
1196	req->ptr1 = SvPVbyte_nolen (req->sv1);	1490	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1197	req->sv2 = newSVsv (newpath);	1491	req->int3 = (long)wd2;
1198	req->ptr2 = SvPVbyte_nolen (req->sv2);
1199		1492
1200	REQ_SEND;	1493	REQ_SEND;
1201	}	1494	}
1202		1495
1203	void	1496	void
1204	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1497	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1205	PPCODE:	1498	PPCODE:
1206	{	1499	{
1207	dREQ;	1500	dREQ;
1208		1501
1209	req->type = EIO_MKNOD;	1502	req->type = EIO_MKNOD;
1210	req->sv1 = newSVsv (pathname);
1211	req->ptr1 = SvPVbyte_nolen (req->sv1);
1212	req->int2 = (mode_t)mode;	1503	req->int2 = (mode_t)mode;
1213	req->offs = dev;	1504	req->offs = dev;
		1505	req_set_path1 (req, pathname);
1214		1506
1215	REQ_SEND;	1507	REQ_SEND;
1216	}	1508	}
1217		1509
1218	void	1510	void
1219	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1511	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1220	ALIAS:	1512	ALIAS:
1221	aio_mtouch = EIO_MTOUCH	1513	aio_mtouch = EIO_MTOUCH
1222	aio_msync = EIO_MSYNC	1514	aio_msync = EIO_MSYNC
1223	PROTOTYPE: $$$$;$
1224	PPCODE:	1515	PPCODE:
1225	{	1516	{
1226	STRLEN svlen;	1517	STRLEN svlen;
		1518	char *svptr = SvPVbyte (data, svlen);
1227	UV len = SvUV (length);	1519	UV len = SvUV (length);
1228	char *svptr = SvPVbyte (data, svlen);
1229		1520
1230	if (offset < 0)	1521	if (offset < 0)
1231	offset += svlen;	1522	offset += svlen;
1232		1523
1233	if (offset < 0 || offset > svlen)	1524	if (offset < 0 || offset > svlen)
…		…
1238		1529
1239	{	1530	{
1240	dREQ;	1531	dREQ;
1241		1532
1242	req->type = ix;	1533	req->type = ix;
1243	req->size = len;
1244	req->sv2 = SvREFCNT_inc (data);	1534	req->sv2 = SvREFCNT_inc (data);
1245	req->ptr2 = (char *)svptr + offset;	1535	req->ptr2 = (char *)svptr + offset;
		1536	req->size = len;
1246	req->int1 = flags;	1537	req->int1 = flags;
1247		1538
1248	REQ_SEND;	1539	REQ_SEND;
1249	}	1540	}
1250	}	1541	}
1251		1542
1252	void	1543	void
		1544	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1545	PPCODE:
		1546	{
		1547	STRLEN svlen;
		1548	char *svptr = SvPVbyte (data, svlen);
		1549	UV len = SvUV (length);
		1550
		1551	if (offset < 0)
		1552	offset += svlen;
		1553
		1554	if (offset < 0 || offset > svlen)
		1555	croak ("offset outside of scalar");
		1556
		1557	if (!SvOK (length) || len + offset > svlen)
		1558	len = svlen - offset;
		1559
		1560	{
		1561	dREQ;
		1562
		1563	req->type = EIO_MLOCK;
		1564	req->sv2 = SvREFCNT_inc (data);
		1565	req->ptr2 = (char *)svptr + offset;
		1566	req->size = len;
		1567
		1568	REQ_SEND;
		1569	}
		1570	}
		1571
		1572	void
		1573	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1574	PPCODE:
		1575	{
		1576	dREQ;
		1577
		1578	req->type = EIO_MLOCKALL;
		1579	req->int1 = flags;
		1580
		1581	REQ_SEND;
		1582	}
		1583
		1584	void
		1585	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1586	PPCODE:
		1587	{
		1588	int fd = s_fileno_croak (fh, 0);
		1589	dREQ;
		1590
		1591	req->type = EIO_CUSTOM;
		1592	req->sv1 = newSVsv (fh);
		1593	req->int1 = fd;
		1594
		1595	req->feed = fiemap;
		1596	#if HAVE_FIEMAP
		1597	/* keep our fingers crossed that the next two types are 64 bit */
		1598	req->offs = start;
		1599	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1600	req->int2 = flags;
		1601	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1602	#endif
		1603
		1604	REQ_SEND;
		1605	}
		1606
		1607	void
1253	aio_busy (double delay, SV *callback=&PL_sv_undef)	1608	aio_busy (double delay, SV *callback = &PL_sv_undef)
1254	PPCODE:	1609	PPCODE:
1255	{	1610	{
1256	dREQ;	1611	dREQ;
1257		1612
1258	req->type = EIO_BUSY;	1613	req->type = EIO_BUSY;
…		…
1260		1615
1261	REQ_SEND;	1616	REQ_SEND;
1262	}	1617	}
1263		1618
1264	void	1619	void
1265	aio_group (SV *callback=&PL_sv_undef)	1620	aio_group (SV *callback = &PL_sv_undef)
1266	PROTOTYPE: ;$
1267	PPCODE:	1621	PPCODE:
1268	{	1622	{
1269	dREQ;	1623	dREQ;
1270		1624
1271	req->type = EIO_GROUP;	1625	req->type = EIO_GROUP;
1272		1626
		1627	PUTBACK;
1273	req_submit (req);	1628	req_submit (req);
		1629	SPAGAIN;
		1630
1274	XPUSHs (req_sv (req, aio_grp_stash));	1631	XPUSHs (req_sv (req, aio_grp_stash));
1275	}	1632	}
1276		1633
1277	void	1634	void
1278	aio_nop (SV *callback=&PL_sv_undef)	1635	aio_nop (SV *callback = &PL_sv_undef)
1279	ALIAS:	1636	ALIAS:
1280	aio_nop = EIO_NOP	1637	aio_nop = EIO_NOP
1281	aio_sync = EIO_SYNC	1638	aio_sync = EIO_SYNC
1282	PPCODE:	1639	PPCODE:
1283	{	1640	{
…		…
1287		1644
1288	REQ_SEND;	1645	REQ_SEND;
1289	}	1646	}
1290		1647
1291	int	1648	int
1292	aioreq_pri (int pri = 0)	1649	aioreq_pri (int pri = NO_INIT)
1293	PROTOTYPE: ;$
1294	CODE:	1650	CODE:
1295	RETVAL = next_pri;	1651	RETVAL = next_pri;
1296	if (items > 0)	1652	if (items > 0)
1297	{	1653	{
1298	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1654	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1310	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1666	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1311	next_pri = nice;	1667	next_pri = nice;
1312		1668
1313	void	1669	void
1314	flush ()	1670	flush ()
1315	PROTOTYPE:
1316	CODE:	1671	CODE:
1317	while (eio_nreqs ())	1672	while (eio_nreqs ())
1318	{	1673	{
1319	poll_wait ();	1674	poll_wait ();
1320	poll_cb ();	1675	poll_cb ();
1321	}	1676	}
1322		1677
1323	int	1678	int
1324	poll()	1679	poll ()
1325	PROTOTYPE:
1326	CODE:	1680	CODE:
1327	poll_wait ();	1681	poll_wait ();
1328	RETVAL = poll_cb ();	1682	RETVAL = poll_cb ();
1329	OUTPUT:	1683	OUTPUT:
1330	RETVAL	1684	RETVAL
1331		1685
1332	int	1686	int
1333	poll_fileno()	1687	poll_fileno ()
1334	PROTOTYPE:
1335	CODE:	1688	CODE:
1336	RETVAL = s_epipe_fd (&respipe);	1689	RETVAL = s_epipe_fd (&respipe);
1337	OUTPUT:	1690	OUTPUT:
1338	RETVAL	1691	RETVAL
1339		1692
1340	int	1693	int
1341	poll_cb(...)	1694	poll_cb (...)
1342	PROTOTYPE:	1695	PROTOTYPE:
1343	CODE:	1696	CODE:
1344	RETVAL = poll_cb ();	1697	RETVAL = poll_cb ();
1345	OUTPUT:	1698	OUTPUT:
1346	RETVAL	1699	RETVAL
1347		1700
1348	void	1701	void
1349	poll_wait()	1702	poll_wait ()
1350	PROTOTYPE:
1351	CODE:	1703	CODE:
1352	poll_wait ();	1704	poll_wait ();
1353		1705
1354	int	1706	int
1355	nreqs()	1707	nreqs ()
1356	PROTOTYPE:
1357	CODE:	1708	CODE:
1358	RETVAL = eio_nreqs ();	1709	RETVAL = eio_nreqs ();
1359	OUTPUT:	1710	OUTPUT:
1360	RETVAL	1711	RETVAL
1361		1712
1362	int	1713	int
1363	nready()	1714	nready ()
1364	PROTOTYPE:
1365	CODE:	1715	CODE:
1366	RETVAL = eio_nready ();	1716	RETVAL = eio_nready ();
1367	OUTPUT:	1717	OUTPUT:
1368	RETVAL	1718	RETVAL
1369		1719
1370	int	1720	int
1371	npending()	1721	npending ()
1372	PROTOTYPE:
1373	CODE:	1722	CODE:
1374	RETVAL = eio_npending ();	1723	RETVAL = eio_npending ();
1375	OUTPUT:	1724	OUTPUT:
1376	RETVAL	1725	RETVAL
1377		1726
1378	int	1727	int
1379	nthreads()	1728	nthreads ()
1380	PROTOTYPE:
1381	CODE:	1729	CODE:
1382	RETVAL = eio_nthreads ();	1730	RETVAL = eio_nthreads ();
1383	OUTPUT:	1731	OUTPUT:
1384	RETVAL	1732	RETVAL
1385		1733
1386	int	1734	int
1387	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1735	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1388	PROTOTYPE: $$$$
1389	CODE:	1736	CODE:
1390	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1391	RETVAL = posix_fadvise (fh, offset, length, advice);	1737	RETVAL = posix_fadvise (fh, offset, length, advice);
1392	#else
1393	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1394	#endif
1395	OUTPUT:	1738	OUTPUT:
1396	RETVAL	1739	RETVAL
1397		1740
1398	ssize_t	1741	IV
1399	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1742	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1400	PROTOTYPE: $$$$
1401	CODE:	1743	CODE:
1402	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1744	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1403	OUTPUT:	1745	OUTPUT:
1404	RETVAL	1746	RETVAL
1405		1747
1406	void	1748	void
1407	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1749	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1408	PROTOTYPE: $$$$$;$
1409	PPCODE:	1750	PPCODE:
1410	sv_unmagic (scalar, MMAP_MAGIC);	1751	sv_unmagic (scalar, MMAP_MAGIC);
1411	{	1752	{
1412	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1753	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1413	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1754	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1436	XSRETURN_YES;	1777	XSRETURN_YES;
1437	}	1778	}
1438		1779
1439	void	1780	void
1440	munmap (SV *scalar)	1781	munmap (SV *scalar)
1441	PROTOTYPE: $
1442	CODE:	1782	CODE:
1443	sv_unmagic (scalar, MMAP_MAGIC);	1783	sv_unmagic (scalar, MMAP_MAGIC);
1444		1784
1445	int	1785	int
1446	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1786	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1447	PROTOTYPE: $$$$	1787	ALIAS:
		1788	mprotect = 1
1448	CODE:	1789	CODE:
1449	{	1790	{
1450	char *addr = SvPV_nolen (scalar) + offset;	1791	STRLEN svlen;
		1792	void *addr = SvPVbyte (scalar, svlen);
		1793	STRLEN len = SvUV (length);
1451		1794
1452	if (!SvOK (ST (2)))	1795	if (offset < 0)
		1796	offset += svlen;
		1797
		1798	if (offset < 0 || offset > svlen)
		1799	croak ("offset outside of scalar");
		1800
		1801	if (!SvOK (length) || len + offset > svlen)
1453	length = SvCUR (scalar) - offset;	1802	len = svlen - offset;
1454		1803
1455	if (addr >= SvEND (scalar) || length <= 0)	1804	addr = (void *)(((intptr_t)addr) + offset);
1456	XSRETURN_EMPTY;	1805	eio_page_align (&addr, &len);
1457		1806
1458	#if _XOPEN_SOURCE >= 600 && !NO_MADVISE	1807	switch (ix)
		1808	{
1459	RETVAL = posix_madvise (addr, length, advice);	1809	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1460	#else	1810	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1461	RETVAL = errno = ENOSYS; /* yes, this is actually correct */	1811	}
1462	#endif
1463	}	1812	}
1464	OUTPUT:	1813	OUTPUT:
1465	RETVAL	1814	RETVAL
1466		1815
1467	int	1816	int
1468	mlockall (int flags)	1817	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1469	PROTOTYPE: $
1470	CODE:	1818	CODE:
		1819	{
		1820	STRLEN svlen;
		1821	void *addr = SvPVbyte (scalar, svlen);
		1822	size_t len = SvUV (length);
		1823
		1824	if (offset < 0)
		1825	offset += svlen;
		1826
		1827	if (offset < 0 || offset > svlen)
		1828	croak ("offset outside of scalar");
		1829
		1830	if (!SvOK (length) || len + offset > svlen)
		1831	len = svlen - offset;
		1832
		1833	addr = (void *)(((intptr_t)addr) + offset);
		1834	eio_page_align (&addr, &len);
1471	#if _POSIX_MEMLOCK	1835	#if _POSIX_MEMLOCK_RANGE
1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1836	RETVAL = munlock (addr, len);
1473	extern int mallopt (int, int);
1474	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1475	#endif
1476	mlockall (flags);
1477	#else	1837	#else
1478	RETVAL = -1;	1838	RETVAL = EIO_ENOSYS ();
1479	errno = ENOSYS;
1480	#endif	1839	#endif
		1840	}
1481	OUTPUT:	1841	OUTPUT:
1482	RETVAL	1842	RETVAL
1483		1843
1484	int	1844	int
1485	munlockall ()	1845	munlockall ()
1486	PROTOTYPE:
1487	CODE:	1846	CODE:
1488	#if _POSIX_MEMLOCK	1847	#if _POSIX_MEMLOCK
1489	munlockall ();	1848	munlockall ();
1490	#else	1849	#else
1491	RETVAL = -1;	1850	RETVAL = EIO_ENOSYS ();
1492	errno = ENOSYS;
1493	#endif	1851	#endif
1494	OUTPUT:	1852	OUTPUT:
1495	RETVAL	1853	RETVAL
		1854
		1855	int
		1856	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1857	CODE:
		1858	{
		1859	#if HAVE_LINUX_SPLICE
		1860	loff_t off_in_, off_out_;
		1861	RETVAL = splice (
		1862	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1863	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1864	length, flags
		1865	);
		1866	#else
		1867	RETVAL = EIO_ENOSYS ();
		1868	#endif
		1869	}
		1870	OUTPUT:
		1871	RETVAL
		1872
		1873	int
		1874	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1875	CODE:
		1876	#if HAVE_LINUX_SPLICE
		1877	RETVAL = tee (rfh, wfh, length, flags);
		1878	#else
		1879	RETVAL = EIO_ENOSYS ();
		1880	#endif
		1881	OUTPUT:
		1882	RETVAL
		1883
		1884	int
		1885	pipesize (aio_rfd rfh, int new_size = -1)
		1886	PROTOTYPE: $;$
		1887	CODE:
		1888	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1889	if (new_size >= 0)
		1890	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1891	else
		1892	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1893	#else
		1894	errno = ENOSYS;
		1895	RETVAL = -1;
		1896	#endif
		1897	OUTPUT:
		1898	RETVAL
		1899
		1900	void
		1901	pipe2 (int flags = 0)
		1902	PROTOTYPE: ;$
		1903	PPCODE:
		1904	{
		1905	int fd[2];
		1906	int res;
		1907
		1908	if (flags)
		1909	#if HAVE_PIPE2
		1910	res = pipe2 (fd, flags);
		1911	#else
		1912	res = (errno = ENOSYS, -1);
		1913	#endif
		1914	else
		1915	res = pipe (fd);
		1916
		1917	if (!res)
		1918	{
		1919	EXTEND (SP, 2);
		1920	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1921	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1922	}
		1923	}
1496		1924
1497	void _on_next_submit (SV *cb)	1925	void _on_next_submit (SV *cb)
1498	CODE:	1926	CODE:
1499	SvREFCNT_dec (on_next_submit);	1927	SvREFCNT_dec (on_next_submit);
1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1928	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1501		1929
1502	PROTOTYPES: DISABLE	1930	PROTOTYPES: DISABLE
1503		1931
		1932	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1933
		1934	BOOT:
		1935	{
		1936	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1937	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1938	}
		1939
		1940	void
		1941	DESTROY (SV *self)
		1942	CODE:
		1943	{
		1944	aio_wd wd = SvAIO_WD (self);
		1945	#if HAVE_AT
		1946	{
		1947	SV *callback = &PL_sv_undef;
		1948	dREQ; /* clobbers next_pri :/ */
		1949	next_pri = req->pri; /* restore next_pri */
		1950	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1951	req->type = EIO_WD_CLOSE;
		1952	req->wd = wd;
		1953	REQ_SEND;
		1954	}
		1955	#else
		1956	eio_wd_close_sync (wd);
		1957	#endif
		1958	}
		1959
1504	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1960	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1505		1961
1506	void	1962	void
1507	cancel (aio_req_ornot req)	1963	cancel (aio_req_ornot req)
1508	CODE:	1964	CODE:
1509	eio_cancel (req);	1965	eio_cancel (req);
1510		1966
1511	void	1967	void
1512	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1968	cb (aio_req_ornot req, SV *callback = NO_INIT)
1513	PPCODE:	1969	PPCODE:
1514	{	1970	{
1515	if (GIMME_V != G_VOID)	1971	if (GIMME_V != G_VOID)
1516	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1972	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1517		1973
1518	if (items > 1)	1974	if (items > 1)
1519	{	1975	{
1520	SV *cb_cv =get_cb (callback);	1976	SV *cb_cv = get_cb (callback);
1521		1977
1522	SvREFCNT_dec (req->callback);	1978	SvREFCNT_dec (req->callback);
1523	req->callback = SvREFCNT_inc (cb_cv);	1979	req->callback = SvREFCNT_inc (cb_cv);
1524	}	1980	}
1525	}	1981	}
…		…
1582	limit (aio_req grp, int limit)	2038	limit (aio_req grp, int limit)
1583	CODE:	2039	CODE:
1584	eio_grp_limit (grp, limit);	2040	eio_grp_limit (grp, limit);
1585		2041
1586	void	2042	void
1587	feed (aio_req grp, SV *callback=&PL_sv_undef)	2043	feed (aio_req grp, SV *callback = &PL_sv_undef)
1588	CODE:	2044	CODE:
1589	{	2045	{
1590	SvREFCNT_dec (grp->sv2);	2046	SvREFCNT_dec (grp->sv2);
1591	grp->sv2 = newSVsv (callback);	2047	grp->sv2 = newSVsv (callback);
1592	grp->feed = aio_grp_feed;	2048	grp->feed = aio_grp_feed;

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