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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.171 by root, Wed Aug 4 17:16:19 2010 UTC vs.
Revision 1.208 by root, Sat Jan 7 18:42:43 2012 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>
23	#endif	22	#endif
24		23
25	/* perl namespace pollution */	24	/* perl namespace pollution */
26	#undef VERSION	25	#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		26
77	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	29	#undef readdir
80	#undef opendir	30	#undef opendir
81	#undef closedir	31	#undef closedir
82		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#define EIO_STRUCT_STAT struct _stati64
		68	#define EIO_STRUCT_STATI64
		69
		70	#else
		71
		72	#include <sys/time.h>
		73	#include <sys/select.h>
		74	#include <unistd.h>
		75	#include <utime.h>
		76	#include <signal.h>
		77
83	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
		79
		80	#endif
84		81
85	/* use NV for 32 bit perls as it allows larger offsets */	82	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8	83	#if IVSIZE >= 8
87	# define VAL64 IV	84	# define VAL64 IV
88	# define SvVAL64 SvIV	85	# define SvVAL64 SvIV
…		…
108		105
109	typedef SV SV8; /* byte-sv, used for argument-checking */	106	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	107	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	108	typedef int aio_wfd; /* write file descriptor */
112		109
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	110	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		111
115	#define EIO_REQ_MEMBERS \	112	#define EIO_REQ_MEMBERS \
116	SV *callback; \	113	SV *callback; \
117	SV *sv1, *sv2; \	114	SV *sv1, *sv2; \
		115	SV *sv3, *sv4; \
118	STRLEN stroffset; \	116	STRLEN stroffset; \
119	SV *self;	117	SV *self;
120		118
121	#define EIO_NO_WRAPPERS 1	119	#define EIO_NO_WRAPPERS 1
122		120
		121	#include "libeio/config.h"
123	#include "libeio/eio.h"	122	#include "libeio/eio.h"
		123
		124	static int req_invoke (eio_req *req);
		125	#define EIO_FINISH(req) req_invoke (req)
		126	static void req_destroy (eio_req *grp);
		127	#define EIO_DESTROY(req) req_destroy (req)
		128
		129	#include "libeio/eio.c"
		130
		131	/* Linux/others */
		132	#ifndef O_ASYNC
		133	# define O_ASYNC 0
		134	#endif
		135	#ifndef O_DIRECT
		136	# define O_DIRECT 0
		137	#endif
		138	#ifndef O_NOATIME
		139	# define O_NOATIME 0
		140	#endif
		141
		142	/* POSIX */
		143	#ifndef O_CLOEXEC
		144	# define O_CLOEXEC 0
		145	#endif
		146	#ifndef O_NOFOLLOW
		147	# define O_NOFOLLOW 0
		148	#endif
		149	#ifndef O_NOCTTY
		150	# define O_NOCTTY 0
		151	#endif
		152	#ifndef O_NONBLOCK
		153	# define O_NONBLOCK 0
		154	#endif
		155	#ifndef O_EXEC
		156	# define O_EXEC 0
		157	#endif
		158	#ifndef O_SEARCH
		159	# define O_SEARCH 0
		160	#endif
		161	#ifndef O_DIRECTORY
		162	# define O_DIRECTORY 0
		163	#endif
		164	#ifndef O_DSYNC
		165	# define O_DSYNC 0
		166	#endif
		167	#ifndef O_RSYNC
		168	# define O_RSYNC 0
		169	#endif
		170	#ifndef O_SYNC
		171	# define O_SYNC 0
		172	#endif
		173	#ifndef O_TTY_INIT
		174	# define O_TTY_INIT 0
		175	#endif
124		176
125	#ifndef POSIX_FADV_NORMAL	177	#ifndef POSIX_FADV_NORMAL
126	# define POSIX_FADV_NORMAL 0	178	# define POSIX_FADV_NORMAL 0
127	# define NO_FADVISE 1
128	#endif	179	#endif
129	#ifndef POSIX_FADV_SEQUENTIAL	180	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0	181	# define POSIX_FADV_SEQUENTIAL 0
131	#endif	182	#endif
132	#ifndef POSIX_FADV_RANDOM	183	#ifndef POSIX_FADV_RANDOM
…		…
140	#endif	191	#endif
141	#ifndef POSIX_FADV_DONTNEED	192	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0	193	# define POSIX_FADV_DONTNEED 0
143	#endif	194	#endif
144		195
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	196	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	198	#endif
148		199
149	#ifndef POSIX_MADV_NORMAL	200	#ifndef POSIX_MADV_NORMAL
150	# define POSIX_MADV_NORMAL 0	201	# define POSIX_MADV_NORMAL 0
151	# define NO_MADVISE 1
152	#endif	202	#endif
153	#ifndef POSIX_MADV_SEQUENTIAL	203	#ifndef POSIX_MADV_SEQUENTIAL
154	# define POSIX_MADV_SEQUENTIAL 0	204	# define POSIX_MADV_SEQUENTIAL 0
155	#endif	205	#endif
156	#ifndef POSIX_MADV_RANDOM	206	#ifndef POSIX_MADV_RANDOM
…		…
161	#endif	211	#endif
162	#ifndef POSIX_MADV_DONTNEED	212	#ifndef POSIX_MADV_DONTNEED
163	# define POSIX_MADV_DONTNEED 0	213	# define POSIX_MADV_DONTNEED 0
164	#endif	214	#endif
165		215
166	#if _XOPEN_SOURCE < 600 || NO_MADVISE	216	#if !HAVE_POSIX_MADVISE
167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168	#endif	218	#endif
169		219
170	#ifndef PROT_NONE	220	#ifndef PROT_NONE
171	# define PROT_NONE 0	221	# define PROT_NONE 0
…		…
178	#endif	228	#endif
179	#ifndef PROT_EXEC	229	#ifndef PROT_EXEC
180	# define PROT_EXEC 0	230	# define PROT_EXEC 0
181	#endif	231	#endif
182		232
		233	#ifndef ST_RDONLY
		234	# define ST_RDONLY 0
		235	#endif
		236	#ifndef ST_NOSUID
		237	# define ST_NOSUID 0
		238	#endif
183	#ifndef ST_NODEV	239	#ifndef ST_NODEV
184	# define ST_NODEV 0	240	# define ST_NODEV 0
185	#endif	241	#endif
186	#ifndef ST_NOEXEC	242	#ifndef ST_NOEXEC
187	# define ST_NOEXEC 0	243	# define ST_NOEXEC 0
…		…
209	#endif	265	#endif
210	#ifndef ST_RELATIME	266	#ifndef ST_RELATIME
211	# define ST_RELATIME 0	267	# define ST_RELATIME 0
212	#endif	268	#endif
213		269
214	#ifndef MCL_CURRENT	270	#ifndef S_IFIFO
215	# define MCL_CURRENT 0	271	# define S_IFIFO 0
216	#endif	272	#endif
217	#ifndef MCL_FUTURE	273	#ifndef S_IFCHR
218	# define MCL_FUTURE 0	274	# define S_IFCHR 0
		275	#endif
		276	#ifndef S_IFBLK
		277	# define S_IFBLK 0
		278	#endif
		279	#ifndef S_IFLNK
		280	# define S_IFLNK 0
		281	#endif
		282	#ifndef S_IFREG
		283	# define S_IFREG 0
		284	#endif
		285	#ifndef S_IFDIR
		286	# define S_IFDIR 0
		287	#endif
		288	#ifndef S_IFWHT
		289	# define S_IFWHT 0
		290	#endif
		291	#ifndef S_IFSOCK
		292	# define S_IFSOCK 0
219	#endif	293	#endif
220		294
221	#ifndef MAP_ANONYMOUS	295	#ifndef MAP_ANONYMOUS
222	# ifdef MAP_ANON	296	# ifdef MAP_ANON
223	# define MAP_ANONYMOUS MAP_ANON	297	# define MAP_ANONYMOUS MAP_ANON
…		…
239	#endif	313	#endif
240	#ifndef MAP_NONBLOCK	314	#ifndef MAP_NONBLOCK
241	# define MAP_NONBLOCK 0	315	# define MAP_NONBLOCK 0
242	#endif	316	#endif
243		317
		318	#ifndef makedev
		319	# define makedev(maj,min) (((maj) << 8) | (min))
		320	#endif
		321	#ifndef major
		322	# define major(dev) ((dev) >> 8)
		323	#endif
		324	#ifndef minor
		325	# define minor(dev) ((dev) & 0xff)
		326	#endif
		327
244	#ifndef PAGESIZE	328	#ifndef PAGESIZE
245	# define PAGESIZE sysconf (_SC_PAGESIZE)	329	# define PAGESIZE sysconf (_SC_PAGESIZE)
246	#endif	330	#endif
247
248	static int req_invoke (eio_req *req);
249	#define EIO_FINISH(req) req_invoke (req)
250	static void req_destroy (eio_req *grp);
251	#define EIO_DESTROY(req) req_destroy (req)
252		331
253	enum {	332	enum {
254	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
255	};	334	};
256		335
257	#include "libeio/eio.c"
258
259	typedef eio_req *aio_req;	336	typedef eio_req *aio_req;
260	typedef eio_req *aio_req_ornot;	337	typedef eio_req *aio_req_ornot;
		338	typedef eio_wd aio_wd;
261		339
262	static SV *on_next_submit;	340	static SV *on_next_submit;
263	static int next_pri = EIO_PRI_DEFAULT;	341	static int next_pri = EIO_PRI_DEFAULT;
264	static int max_outstanding;	342	static int max_outstanding;
265		343
266	static s_epipe respipe;	344	static s_epipe respipe;
267		345
268	static void req_destroy (aio_req req);	346	static void req_destroy (aio_req req);
269	static void req_cancel (aio_req req);	347	static void req_cancel (aio_req req);
270		348
271	static void want_poll (void)	349	static void
		350	want_poll (void)
272	{	351	{
273	/* write a dummy byte to the pipe so fh becomes ready */	352	/* write a dummy byte to the pipe so fh becomes ready */
274	s_epipe_signal (&respipe);	353	s_epipe_signal (&respipe);
275	}	354	}
276		355
277	static void done_poll (void)	356	static void
		357	done_poll (void)
278	{	358	{
279	/* read any signals sent by the worker threads */	359	/* read any signals sent by the worker threads */
280	s_epipe_drain (&respipe);	360	s_epipe_drain (&respipe);
281	}	361	}
282		362
283	/* must be called at most once */	363	/* must be called at most once */
		364	static SV *
284	static SV *req_sv (aio_req req, HV *stash)	365	req_sv (aio_req req, HV *stash)
285	{	366	{
286	if (!req->self)	367	if (!req->self)
287	{	368	{
288	req->self = (SV *)newHV ();	369	req->self = (SV *)newHV ();
289	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	370	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
290	}	371	}
291		372
292	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	373	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
293	}	374	}
294		375
295	static aio_req SvAIO_REQ (SV *sv)	376	static SV *
		377	newSVaio_wd (aio_wd wd)
		378	{
		379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		380	}
		381
		382	static aio_req
		383	SvAIO_REQ (SV *sv)
296	{	384	{
297	MAGIC *mg;	385	MAGIC *mg;
298		386
299	if (!SvROK (sv)	387	if (!SvROK (sv)
		388	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
300	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	389	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
301	&& SvSTASH (SvRV (sv)) != aio_req_stash	390	&& SvSTASH (SvRV (sv)) != aio_req_stash
302	&& !sv_derived_from (sv, "IO::AIO::REQ")))	391	&& !sv_derived_from (sv, "IO::AIO::REQ")))
303	croak ("object of class IO::AIO::REQ expected");	392	croak ("object of class IO::AIO::REQ expected");
304		393
305	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	394	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
306		395
307	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
308	}	397	}
309		398
		399	static aio_wd
		400	SvAIO_WD (SV *sv)
		401	{
		402	if (!SvROK (sv)
		403	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		406
		407	return (aio_wd)(long)SvIVX (SvRV (sv));
		408	}
		409
		410	static void
310	static void aio_grp_feed (aio_req grp)	411	aio_grp_feed (aio_req grp)
311	{	412	{
312	if (grp->sv2 && SvOK (grp->sv2))	413	if (grp->sv2 && SvOK (grp->sv2))
313	{	414	{
314	dSP;	415	dSP;
315		416
…		…
323	FREETMPS;	424	FREETMPS;
324	LEAVE;	425	LEAVE;
325	}	426	}
326	}	427	}
327		428
		429	static void
328	static void req_submit (eio_req *req)	430	req_submit (eio_req *req)
329	{	431	{
330	eio_submit (req);	432	eio_submit (req);
331		433
332	if (expect_false (on_next_submit))	434	if (expect_false (on_next_submit))
333	{	435	{
…		…
340	PUTBACK;	442	PUTBACK;
341	call_sv (cb, G_DISCARD | G_EVAL);	443	call_sv (cb, G_DISCARD | G_EVAL);
342	}	444	}
343	}	445	}
344		446
		447	static int
345	static int req_invoke (eio_req *req)	448	req_invoke (eio_req *req)
346	{	449	{
347	if (req->flags & FLAG_SV2_RO_OFF)	450	if (req->flags & FLAG_SV2_RO_OFF)
348	SvREADONLY_off (req->sv2);	451	SvREADONLY_off (req->sv2);
349		452
350	if (!EIO_CANCELLED (req) && req->callback)	453	if (!EIO_CANCELLED (req) && req->callback)
…		…
361	/* do not recreate the result IV from scratch each time */	464	/* do not recreate the result IV from scratch each time */
362	if (expect_true (sv_result_cache))	465	if (expect_true (sv_result_cache))
363	{	466	{
364	sv_result = sv_result_cache; sv_result_cache = 0;	467	sv_result = sv_result_cache; sv_result_cache = 0;
365	SvIV_set (sv_result, req->result);	468	SvIV_set (sv_result, req->result);
		469	SvIOK_only (sv_result);
366	}	470	}
367	else	471	else
368	{	472	{
369	sv_result = newSViv (req->result);	473	sv_result = newSViv (req->result);
370	SvREADONLY_on (sv_result);	474	SvREADONLY_on (sv_result);
371	}	475	}
372		476
373	switch (req->type)	477	switch (req->type)
374	{	478	{
		479	case EIO_WD_OPEN:
		480	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		481	break;
		482
375	case EIO_READDIR:	483	case EIO_READDIR:
376	{	484	{
377	SV *rv = &PL_sv_undef;	485	SV *rv = &PL_sv_undef;
378		486
379	if (req->result >= 0)	487	if (req->result >= 0)
…		…
467	case EIO_STATVFS:	575	case EIO_STATVFS:
468	case EIO_FSTATVFS:	576	case EIO_FSTATVFS:
469	{	577	{
470	SV *rv = &PL_sv_undef;	578	SV *rv = &PL_sv_undef;
471		579
		580	#ifndef _WIN32
472	if (req->result >= 0)	581	if (req->result >= 0)
473	{	582	{
474	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
475	HV *hv = newHV ();	584	HV *hv = newHV ();
476		585
…		…
486	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
487	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
488	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
489	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
490	}	599	}
		600	#endif
491		601
492	PUSHs (rv);	602	PUSHs (rv);
493	}	603	}
494		604
495	break;	605	break;
…		…
511	case EIO_NOP:	621	case EIO_NOP:
512	case EIO_BUSY:	622	case EIO_BUSY:
513	break;	623	break;
514		624
515	case EIO_READLINK:	625	case EIO_READLINK:
		626	case EIO_REALPATH:
516	if (req->result > 0)	627	if (req->result > 0)
517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	628	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
518	break;	629	break;
519		630
520	case EIO_STAT:	631	case EIO_STAT:
521	case EIO_LSTAT:	632	case EIO_LSTAT:
522	case EIO_FSTAT:	633	case EIO_FSTAT:
523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	634	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		635
524	PL_laststatval = req->result;	636	if (!(PL_laststatval = req->result))
		637	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
525	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	638	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		639
526	PUSHs (sv_result);	640	PUSHs (sv_result);
527	break;	641	break;
528		642
529	case EIO_READ:	643	case EIO_READ:
530	{	644	{
…		…
534	SvSETMAGIC (req->sv2);	648	SvSETMAGIC (req->sv2);
535	PUSHs (sv_result);	649	PUSHs (sv_result);
536	}	650	}
537	break;	651	break;
538		652
539	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	653	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
540	if (req->result > 0)	654	if (req->result > 0)
541	SvIV_set (sv_result, 0);	655	SvIV_set (sv_result, 0);
542	/* FALLTHROUGH */	656	/* FALLTHROUGH */
543		657
544	default:	658	default:
…		…
564	}	678	}
565		679
566	return !!SvTRUE (ERRSV);	680	return !!SvTRUE (ERRSV);
567	}	681	}
568		682
		683	static void
569	static void req_destroy (aio_req req)	684	req_destroy (aio_req req)
570	{	685	{
571	if (req->self)	686	if (req->self)
572	{	687	{
573	sv_unmagic (req->self, PERL_MAGIC_ext);	688	sv_unmagic (req->self, PERL_MAGIC_ext);
574	SvREFCNT_dec (req->self);	689	SvREFCNT_dec (req->self);
575	}	690	}
576		691
577	SvREFCNT_dec (req->sv1);	692	SvREFCNT_dec (req->sv1);
578	SvREFCNT_dec (req->sv2);	693	SvREFCNT_dec (req->sv2);
		694	SvREFCNT_dec (req->sv3);
		695	SvREFCNT_dec (req->sv4);
579	SvREFCNT_dec (req->callback);	696	SvREFCNT_dec (req->callback);
580		697
581	Safefree (req);	698	free (req);
582	}	699	}
583		700
		701	static void
584	static void req_cancel_subs (aio_req grp)	702	req_cancel_subs (aio_req grp)
585	{	703	{
586	aio_req sub;
587
588	if (grp->type != EIO_GROUP)	704	if (grp->type != EIO_GROUP)
589	return;	705	return;
590		706
591	SvREFCNT_dec (grp->sv2);	707	SvREFCNT_dec (grp->sv2);
592	grp->sv2 = 0;	708	grp->sv2 = 0;
593		709
594	eio_grp_cancel (grp);	710	eio_grp_cancel (grp);
595	}	711	}
596		712
597	static void	713	static void ecb_cold
598	create_respipe (void)	714	create_respipe (void)
599	{	715	{
600	if (s_epipe_renew (&respipe))	716	if (s_epipe_renew (&respipe))
601	croak ("IO::AIO: unable to initialize result pipe");	717	croak ("IO::AIO: unable to initialize result pipe");
602	}	718	}
603		719
604	static void poll_wait (void)	720	static void
		721	poll_wait (void)
605	{	722	{
606	while (eio_nreqs ())	723	while (eio_nreqs ())
607	{	724	{
608	int size;	725	int size;
609		726
…		…
618		735
619	s_epipe_wait (&respipe);	736	s_epipe_wait (&respipe);
620	}	737	}
621	}	738	}
622		739
623	static int poll_cb (void)	740	static int
		741	poll_cb (void)
624	{	742	{
625	for (;;)	743	for (;;)
626	{	744	{
627	int res = eio_poll ();	745	int res = eio_poll ();
628		746
…		…
634		752
635	poll_wait ();	753	poll_wait ();
636	}	754	}
637	}	755	}
638		756
639	static void atfork_child (void)	757	static void ecb_cold
		758	reinit (void)
640	{	759	{
641	create_respipe ();	760	create_respipe ();
		761
		762	if (eio_init (want_poll, done_poll) < 0)
		763	croak ("IO::AIO: unable to initialise eio library");
642	}	764	}
643		765
644	/*****************************************************************************/	766	/*****************************************************************************/
645		767
646	#if !_POSIX_MAPPED_FILES	768	#if !_POSIX_MAPPED_FILES
647	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	769	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
648	# define munmap(addr,length) (errno = ENOSYS, -1)	770	# define munmap(addr,length) (errno = ENOSYS, -1)
		771	#endif
		772
		773	#if !_POSIX_MEMORY_PROTECTION
649	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	774	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		775	# define PROT_NONE 0
		776	# define PROT_WRITE 0
		777	# define MAP_PRIVATE 0
		778	# define MAP_SHARED 0
		779	# define MAP_FIXED 0
650	#endif	780	#endif
651		781
652	#define MMAP_MAGIC PERL_MAGIC_ext	782	#define MMAP_MAGIC PERL_MAGIC_ext
653		783
654	static int	784	static int ecb_cold
655	mmap_free (pTHX_ SV *sv, MAGIC *mg)	785	mmap_free (pTHX_ SV *sv, MAGIC *mg)
656	{	786	{
657	int old_errno = errno;	787	int old_errno = errno;
658	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	788	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
659	errno = old_errno;	789	errno = old_errno;
…		…
683	{	813	{
684	SvGETMAGIC (cb_sv);	814	SvGETMAGIC (cb_sv);
685	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	815	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
686	}	816	}
687		817
		818	static aio_req ecb_noinline
		819	dreq (SV *callback)
		820	{
		821	SV *cb_cv;
		822	aio_req req;
		823	int req_pri = next_pri;
		824	next_pri = EIO_PRI_DEFAULT;
		825
		826	cb_cv = get_cb (callback);
		827
		828	req = calloc (sizeof (*req), 1);
		829	if (!req)
		830	croak ("out of memory during eio_req allocation");
		831
		832	req->callback = SvREFCNT_inc (cb_cv);
		833	req->pri = req_pri;
		834
		835	return req;
		836	}
		837
688	#define dREQ \	838	#define dREQ \
689	SV *cb_cv; \	839	aio_req req = dreq (callback); \
690	aio_req req; \
691	int req_pri = next_pri; \
692	next_pri = EIO_PRI_DEFAULT; \
693	\
694	cb_cv = get_cb (callback); \
695	\
696	Newz (0, req, 1, eio_req); \
697	if (!req) \
698	croak ("out of memory during eio_req allocation"); \
699	\
700	req->callback = SvREFCNT_inc (cb_cv); \
701	req->pri = req_pri
702		840
703	#define REQ_SEND \	841	#define REQ_SEND \
704	PUTBACK; \	842	PUTBACK; \
705	req_submit (req); \	843	req_submit (req); \
706	SPAGAIN; \	844	SPAGAIN; \
707	\	845	\
708	if (GIMME_V != G_VOID) \	846	if (GIMME_V != G_VOID) \
709	XPUSHs (req_sv (req, aio_req_stash));	847	XPUSHs (req_sv (req, aio_req_stash));
		848
		849	ecb_inline void
		850	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		851	{
		852	if (expect_false (SvROK (path)))
		853	{
		854	SV *rv = SvRV (path);
		855	SV *wdob;
		856
		857	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		858	{
		859	path = AvARRAY (rv)[1];
		860	wdob = AvARRAY (rv)[0];
		861
		862	if (SvOK (wdob))
		863	{
		864	*wd = SvAIO_WD (wdob);
		865	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		866	}
		867	else
		868	*wd = EIO_INVALID_WD;
		869	}
		870	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		871	{
		872	*wd = (aio_wd)(long)SvIVX (rv);
		873	*wdsv = SvREFCNT_inc_NN (rv);
		874	*ptr = ".";
		875	return; /* path set to "." */
		876	}
		877	else
		878	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		879	}
		880
		881	*pathsv = newSVsv (path);
		882	*ptr = SvPVbyte_nolen (*pathsv);
		883	}
		884
		885	static void ecb_noinline
		886	req_set_path1 (aio_req req, SV *path)
		887	{
		888	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		889	}
		890
		891	static void ecb_noinline
		892	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		893	{
		894	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		895
		896	switch (SvTYPE (rv))
		897	{
		898	case SVt_PVIO:
		899	case SVt_PVLV:
		900	case SVt_PVGV:
		901	req->type = type_fh;
		902	req->sv1 = newSVsv (fh_or_path);
		903	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		904	break;
		905
		906	default:
		907	req->type = type_path;
		908	req_set_path1 (req, fh_or_path);
		909	break;
		910	}
		911	}
		912
		913	XS(boot_IO__AIO) ecb_cold;
710		914
711	MODULE = IO::AIO PACKAGE = IO::AIO	915	MODULE = IO::AIO PACKAGE = IO::AIO
712		916
713	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
714		918
…		…
728	const_iv (O_RDWR)	932	const_iv (O_RDWR)
729	const_iv (O_CREAT)	933	const_iv (O_CREAT)
730	const_iv (O_TRUNC)	934	const_iv (O_TRUNC)
731	const_iv (O_EXCL)	935	const_iv (O_EXCL)
732	const_iv (O_APPEND)	936	const_iv (O_APPEND)
733	#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_TTY_INIT)
		953
734	const_iv (S_IFIFO)	954	const_iv (S_IFIFO)
735	#endif	955	const_iv (S_IFCHR)
		956	const_iv (S_IFBLK)
		957	const_iv (S_IFLNK)
		958	const_iv (S_IFREG)
		959	const_iv (S_IFDIR)
		960	const_iv (S_IFWHT)
		961	const_iv (S_IFSOCK)
		962	const_iv (S_IFMT)
		963
736	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	964	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
737	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	965	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
738	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	966	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
739	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	967	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
740	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	968	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
774	const_iv (MAP_LOCKED)	1002	const_iv (MAP_LOCKED)
775	const_iv (MAP_NORESERVE)	1003	const_iv (MAP_NORESERVE)
776	const_iv (MAP_POPULATE)	1004	const_iv (MAP_POPULATE)
777	const_iv (MAP_NONBLOCK)	1005	const_iv (MAP_NONBLOCK)
778		1006
779	const_iv (MCL_FUTURE)	1007	const_eio (MCL_FUTURE)
780	const_iv (MCL_CURRENT)	1008	const_eio (MCL_CURRENT)
781		1009
782	const_eio (MS_ASYNC)	1010	const_eio (MS_ASYNC)
783	const_eio (MS_INVALIDATE)	1011	const_eio (MS_INVALIDATE)
784	const_eio (MS_SYNC)	1012	const_eio (MS_SYNC)
785		1013
786	const_eio (MT_MODIFY)	1014	const_eio (MT_MODIFY)
787		1015
788	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1016	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
789	const_eio (SYNC_FILE_RANGE_WRITE)	1017	const_eio (SYNC_FILE_RANGE_WRITE)
790	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1018	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1019
		1020	const_eio (FALLOC_FL_KEEP_SIZE)
791		1021
792	const_eio (READDIR_DENTS)	1022	const_eio (READDIR_DENTS)
793	const_eio (READDIR_DIRS_FIRST)	1023	const_eio (READDIR_DIRS_FIRST)
794	const_eio (READDIR_STAT_ORDER)	1024	const_eio (READDIR_STAT_ORDER)
795	const_eio (READDIR_FOUND_UNKNOWN)	1025	const_eio (READDIR_FOUND_UNKNOWN)
…		…
806	};	1036	};
807		1037
808	aio_stash = gv_stashpv ("IO::AIO" , 1);	1038	aio_stash = gv_stashpv ("IO::AIO" , 1);
809	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1039	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
810	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1040	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1041	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
811		1042
812	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1043	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
813	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1044	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
814		1045
815	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1046	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
816		1047
817	create_respipe ();	1048	reinit ();
818
819	if (eio_init (want_poll, done_poll) < 0)
820	croak ("IO::AIO: unable to initialise eio library");
821
822	/* atfork child called in fifo order, so before eio's handler */
823	X_THREAD_ATFORK (0, 0, atfork_child);
824	}	1049	}
825		1050
826	void	1051	void
		1052	reinit ()
		1053	PROTOTYPE:
		1054
		1055	void
827	max_poll_reqs (int nreqs)	1056	max_poll_reqs (unsigned int nreqs)
828	PROTOTYPE: $	1057	PROTOTYPE: $
829	CODE:	1058	CODE:
830	eio_set_max_poll_reqs (nreqs);	1059	eio_set_max_poll_reqs (nreqs);
831		1060
832	void	1061	void
…		…
834	PROTOTYPE: $	1063	PROTOTYPE: $
835	CODE:	1064	CODE:
836	eio_set_max_poll_time (nseconds);	1065	eio_set_max_poll_time (nseconds);
837		1066
838	void	1067	void
839	min_parallel (int nthreads)	1068	min_parallel (unsigned int nthreads)
840	PROTOTYPE: $	1069	PROTOTYPE: $
841	CODE:	1070	CODE:
842	eio_set_min_parallel (nthreads);	1071	eio_set_min_parallel (nthreads);
843		1072
844	void	1073	void
845	max_parallel (int nthreads)	1074	max_parallel (unsigned int nthreads)
846	PROTOTYPE: $	1075	PROTOTYPE: $
847	CODE:	1076	CODE:
848	eio_set_max_parallel (nthreads);	1077	eio_set_max_parallel (nthreads);
849		1078
850	void	1079	void
851	max_idle (int nthreads)	1080	max_idle (unsigned int nthreads)
852	PROTOTYPE: $	1081	PROTOTYPE: $
853	CODE:	1082	CODE:
854	eio_set_max_idle (nthreads);	1083	eio_set_max_idle (nthreads);
855		1084
856	void	1085	void
		1086	idle_timeout (unsigned int seconds)
		1087	PROTOTYPE: $
		1088	CODE:
		1089	eio_set_idle_timeout (seconds);
		1090
		1091	void
857	max_outstanding (int maxreqs)	1092	max_outstanding (unsigned int maxreqs)
858	PROTOTYPE: $	1093	PROTOTYPE: $
859	CODE:	1094	CODE:
860	max_outstanding = maxreqs;	1095	max_outstanding = maxreqs;
861		1096
862	void	1097	void
		1098	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1099	PPCODE:
		1100	{
		1101	dREQ;
		1102
		1103	req->type = EIO_WD_OPEN;
		1104	req_set_path1 (req, pathname);
		1105
		1106	REQ_SEND;
		1107	}
		1108
		1109	void
863	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1110	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
864	PROTOTYPE: $$$;$
865	PPCODE:	1111	PPCODE:
866	{	1112	{
867	dREQ;	1113	dREQ;
868		1114
869	req->type = EIO_OPEN;	1115	req->type = EIO_OPEN;
870	req->sv1 = newSVsv (pathname);	1116	req_set_path1 (req, pathname);
871	req->ptr1 = SvPVbyte_nolen (req->sv1);
872	req->int1 = flags;	1117	req->int1 = flags;
873	req->int2 = mode;	1118	req->int2 = mode;
874		1119
875	REQ_SEND;	1120	REQ_SEND;
876	}	1121	}
877		1122
878	void	1123	void
879	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1124	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
880	PROTOTYPE: $;$
881	ALIAS:	1125	ALIAS:
882	aio_fsync = EIO_FSYNC	1126	aio_fsync = EIO_FSYNC
883	aio_fdatasync = EIO_FDATASYNC	1127	aio_fdatasync = EIO_FDATASYNC
		1128	aio_syncfs = EIO_SYNCFS
884	PPCODE:	1129	PPCODE:
885	{	1130	{
886	int fd = s_fileno_croak (fh, 0);	1131	int fd = s_fileno_croak (fh, 0);
887	dREQ;	1132	dREQ;
888		1133
…		…
893	REQ_SEND (req);	1138	REQ_SEND (req);
894	}	1139	}
895		1140
896	void	1141	void
897	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1142	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
898	PROTOTYPE: $$$$;$
899	PPCODE:	1143	PPCODE:
900	{	1144	{
901	int fd = s_fileno_croak (fh, 0);	1145	int fd = s_fileno_croak (fh, 0);
902	dREQ;	1146	dREQ;
903		1147
…		…
910		1154
911	REQ_SEND (req);	1155	REQ_SEND (req);
912	}	1156	}
913		1157
914	void	1158	void
915	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1159	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
916	PROTOTYPE: $;$
917	PPCODE:	1160	PPCODE:
918	{	1161	{
919	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
920	int fd = s_fileno_croak (fh, 0);	1162	int fd = s_fileno_croak (fh, 0);
921	dREQ;	1163	dREQ;
922		1164
923	if (close_pipe < 0)	1165	req->type = EIO_FALLOCATE;
		1166	req->sv1 = newSVsv (fh);
		1167	req->int1 = fd;
		1168	req->int2 = mode;
		1169	req->offs = offset;
		1170	req->size = len;
		1171
		1172	REQ_SEND (req);
		1173	}
		1174
		1175	void
		1176	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1177	PPCODE:
		1178	{
		1179	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1180	int fd = s_fileno_croak (fh, 0);
		1181	dREQ;
		1182
		1183	if (expect_false (close_fd < 0))
924	{	1184	{
925	int pipefd [2];	1185	int pipefd [2];
926		1186
		1187	if (
		1188	#ifdef _WIN32
		1189	_pipe (pipefd, 1, _O_BINARY) < 0
		1190	#else
927	if (pipe (pipefd) < 0	1191	pipe (pipefd) < 0
928	|| close (pipefd [1]) < 0
929	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1192	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1193	#endif
		1194	|| close (pipefd [1]) < 0
		1195	)
930	abort (); /*D*/	1196	abort (); /*D*/
931		1197
932	close_pipe = pipefd [0];	1198	close_fd = pipefd [0];
933	}	1199	}
934		1200
935	req->type = EIO_DUP2;	1201	req->type = EIO_DUP2;
936	req->int1 = close_pipe;	1202	req->int1 = close_fd;
937	req->sv2 = newSVsv (fh);	1203	req->sv2 = newSVsv (fh);
938	req->int2 = fd;	1204	req->int2 = fd;
939		1205
940	REQ_SEND (req);	1206	REQ_SEND (req);
941	}	1207	}
…		…
943	void	1209	void
944	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1210	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
945	ALIAS:	1211	ALIAS:
946	aio_read = EIO_READ	1212	aio_read = EIO_READ
947	aio_write = EIO_WRITE	1213	aio_write = EIO_WRITE
948	PROTOTYPE: $$$$$;$
949	PPCODE:	1214	PPCODE:
950	{	1215	{
951	STRLEN svlen;	1216	STRLEN svlen;
952	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1217	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
953	char *svptr = SvPVbyte (data, svlen);	1218	char *svptr = SvPVbyte (data, svlen);
…		…
993	REQ_SEND;	1258	REQ_SEND;
994	}	1259	}
995	}	1260	}
996		1261
997	void	1262	void
998	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1263	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
999	PROTOTYPE: $$;$	1264	ALIAS:
		1265	aio_readlink = EIO_READLINK
		1266	aio_realpath = EIO_REALPATH
1000	PPCODE:	1267	PPCODE:
1001	{	1268	{
1002	SV *data;
1003	dREQ;	1269	dREQ;
1004		1270
1005	req->type = EIO_READLINK;	1271	req->type = ix;
1006	req->sv1 = newSVsv (path);	1272	req_set_path1 (req, pathname);
1007	req->ptr1 = SvPVbyte_nolen (req->sv1);
1008		1273
1009	REQ_SEND;	1274	REQ_SEND;
1010	}	1275	}
1011		1276
1012	void	1277	void
1013	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1278	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1014	PROTOTYPE: $$$$;$
1015	PPCODE:	1279	PPCODE:
1016	{	1280	{
1017	int ifd = s_fileno_croak (in_fh , 0);	1281	int ifd = s_fileno_croak (in_fh , 0);
1018	int ofd = s_fileno_croak (out_fh, 1);	1282	int ofd = s_fileno_croak (out_fh, 1);
1019	dREQ;	1283	dREQ;
…		…
1029	REQ_SEND;	1293	REQ_SEND;
1030	}	1294	}
1031		1295
1032	void	1296	void
1033	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1297	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1034	PROTOTYPE: $$$;$
1035	PPCODE:	1298	PPCODE:
1036	{	1299	{
1037	int fd = s_fileno_croak (fh, 0);	1300	int fd = s_fileno_croak (fh, 0);
1038	dREQ;	1301	dREQ;
1039		1302
…		…
1054	aio_statvfs = EIO_STATVFS	1317	aio_statvfs = EIO_STATVFS
1055	PPCODE:	1318	PPCODE:
1056	{	1319	{
1057	dREQ;	1320	dREQ;
1058		1321
1059	req->sv1 = newSVsv (fh_or_path);	1322	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1060
1061	if (SvPOK (req->sv1))
1062	{
1063	req->type = ix;
1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
1065	}
1066	else
1067	{
1068	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1070	}
1071		1323
1072	REQ_SEND;	1324	REQ_SEND;
1073	}	1325	}
		1326
		1327	UV
		1328	major (UV dev)
		1329	ALIAS:
		1330	minor = 1
		1331	CODE:
		1332	RETVAL = ix ? major (dev) : minor (dev);
		1333	OUTPUT:
		1334	RETVAL
		1335
		1336	UV
		1337	makedev (UV maj, UV min)
		1338	CODE:
		1339	RETVAL = makedev (maj, min);
		1340	OUTPUT:
		1341	RETVAL
1074		1342
1075	void	1343	void
1076	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1344	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1077	PPCODE:	1345	PPCODE:
1078	{	1346	{
1079	dREQ;	1347	dREQ;
1080		1348
1081	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1349	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1082	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1350	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1083	req->sv1 = newSVsv (fh_or_path);	1351	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1084
1085	if (SvPOK (req->sv1))
1086	{
1087	req->type = EIO_UTIME;
1088	req->ptr1 = SvPVbyte_nolen (req->sv1);
1089	}
1090	else
1091	{
1092	req->type = EIO_FUTIME;
1093	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1094	}
1095		1352
1096	REQ_SEND;	1353	REQ_SEND;
1097	}	1354	}
1098		1355
1099	void	1356	void
1100	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1357	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1101	PPCODE:	1358	PPCODE:
1102	{	1359	{
1103	dREQ;	1360	dREQ;
1104		1361
1105	req->sv1 = newSVsv (fh_or_path);
1106	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1362	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1107		1363	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1108	if (SvPOK (req->sv1))
1109	{
1110	req->type = EIO_TRUNCATE;
1111	req->ptr1 = SvPVbyte_nolen (req->sv1);
1112	}
1113	else
1114	{
1115	req->type = EIO_FTRUNCATE;
1116	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1117	}
1118		1364
1119	REQ_SEND;	1365	REQ_SEND;
1120	}	1366	}
1121		1367
1122	void	1368	void
1123	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1369	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1124	ALIAS:
1125	aio_chmod = EIO_CHMOD
1126	aio_mkdir = EIO_MKDIR
1127	PPCODE:	1370	PPCODE:
1128	{	1371	{
1129	dREQ;	1372	dREQ;
1130		1373
1131	req->int2 = mode;	1374	req->int2 = mode;
1132	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1133
1134	if (SvPOK (req->sv1))
1135	{
1136	req->type = ix;
1137	req->ptr1 = SvPVbyte_nolen (req->sv1);
1138	}
1139	else
1140	{
1141	req->type = EIO_FCHMOD;
1142	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1143	}
1144		1376
1145	REQ_SEND;	1377	REQ_SEND;
1146	}	1378	}
1147		1379
1148	void	1380	void
…		…
1151	{	1383	{
1152	dREQ;	1384	dREQ;
1153		1385
1154	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1386	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1155	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1387	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1156	req->sv1 = newSVsv (fh_or_path);	1388	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1157
1158	if (SvPOK (req->sv1))
1159	{
1160	req->type = EIO_CHOWN;
1161	req->ptr1 = SvPVbyte_nolen (req->sv1);
1162	}
1163	else
1164	{
1165	req->type = EIO_FCHOWN;
1166	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1167	}
1168		1389
1169	REQ_SEND;	1390	REQ_SEND;
1170	}	1391	}
1171		1392
1172	void	1393	void
…		…
1174	PPCODE:	1395	PPCODE:
1175	{	1396	{
1176	dREQ;	1397	dREQ;
1177		1398
1178	req->type = EIO_READDIR;	1399	req->type = EIO_READDIR;
1179	req->sv1 = newSVsv (pathname);
1180	req->ptr1 = SvPVbyte_nolen (req->sv1);
1181	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1400	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1182		1401
1183	if (flags & EIO_READDIR_DENTS)	1402	if (flags & EIO_READDIR_DENTS)
1184	req->int1 |= EIO_READDIR_CUSTOM2;	1403	req->int1 |= EIO_READDIR_CUSTOM2;
1185		1404
		1405	req_set_path1 (req, pathname);
		1406
1186	REQ_SEND;	1407	REQ_SEND;
		1408	}
		1409
		1410	void
		1411	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1412	PPCODE:
		1413	{
		1414	dREQ;
		1415
		1416	req->type = EIO_MKDIR;
		1417	req->int2 = mode;
		1418	req_set_path1 (req, pathname);
		1419
		1420	REQ_SEND;
1187	}	1421	}
1188		1422
1189	void	1423	void
1190	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1424	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1191	ALIAS:	1425	ALIAS:
…		…
1195	PPCODE:	1429	PPCODE:
1196	{	1430	{
1197	dREQ;	1431	dREQ;
1198		1432
1199	req->type = ix;	1433	req->type = ix;
1200	req->sv1 = newSVsv (pathname);	1434	req_set_path1 (req, pathname);
1201	req->ptr1 = SvPVbyte_nolen (req->sv1);
1202		1435
1203	REQ_SEND;	1436	REQ_SEND;
1204	}	1437	}
1205		1438
1206	void	1439	void
…		…
1209	aio_link = EIO_LINK	1442	aio_link = EIO_LINK
1210	aio_symlink = EIO_SYMLINK	1443	aio_symlink = EIO_SYMLINK
1211	aio_rename = EIO_RENAME	1444	aio_rename = EIO_RENAME
1212	PPCODE:	1445	PPCODE:
1213	{	1446	{
		1447	eio_wd wd2 = 0;
1214	dREQ;	1448	dREQ;
1215		1449
1216	req->type = ix;	1450	req->type = ix;
1217	req->sv1 = newSVsv (oldpath);	1451	req_set_path1 (req, oldpath);
1218	req->ptr1 = SvPVbyte_nolen (req->sv1);	1452	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1219	req->sv2 = newSVsv (newpath);	1453	req->int3 = (long)wd2;
1220	req->ptr2 = SvPVbyte_nolen (req->sv2);
1221		1454
1222	REQ_SEND;	1455	REQ_SEND;
1223	}	1456	}
1224		1457
1225	void	1458	void
…		…
1227	PPCODE:	1460	PPCODE:
1228	{	1461	{
1229	dREQ;	1462	dREQ;
1230		1463
1231	req->type = EIO_MKNOD;	1464	req->type = EIO_MKNOD;
1232	req->sv1 = newSVsv (pathname);
1233	req->ptr1 = SvPVbyte_nolen (req->sv1);
1234	req->int2 = (mode_t)mode;	1465	req->int2 = (mode_t)mode;
1235	req->offs = dev;	1466	req->offs = dev;
		1467	req_set_path1 (req, pathname);
1236		1468
1237	REQ_SEND;	1469	REQ_SEND;
1238	}	1470	}
1239		1471
1240	void	1472	void
1241	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1473	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1242	ALIAS:	1474	ALIAS:
1243	aio_mtouch = EIO_MTOUCH	1475	aio_mtouch = EIO_MTOUCH
1244	aio_msync = EIO_MSYNC	1476	aio_msync = EIO_MSYNC
1245	PROTOTYPE: $$$$;$
1246	PPCODE:	1477	PPCODE:
1247	{	1478	{
1248	STRLEN svlen;	1479	STRLEN svlen;
		1480	char *svptr = SvPVbyte (data, svlen);
1249	UV len = SvUV (length);	1481	UV len = SvUV (length);
1250	char *svptr = SvPVbyte (data, svlen);
1251		1482
1252	if (offset < 0)	1483	if (offset < 0)
1253	offset += svlen;	1484	offset += svlen;
1254		1485
1255	if (offset < 0 || offset > svlen)	1486	if (offset < 0 || offset > svlen)
…		…
1260		1491
1261	{	1492	{
1262	dREQ;	1493	dREQ;
1263		1494
1264	req->type = ix;	1495	req->type = ix;
1265	req->size = len;
1266	req->sv2 = SvREFCNT_inc (data);	1496	req->sv2 = SvREFCNT_inc (data);
1267	req->ptr2 = (char *)svptr + offset;	1497	req->ptr2 = (char *)svptr + offset;
		1498	req->size = len;
1268	req->int1 = flags;	1499	req->int1 = flags;
1269		1500
1270	REQ_SEND;	1501	REQ_SEND;
1271	}	1502	}
1272	}	1503	}
1273		1504
1274	void	1505	void
		1506	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1507	PPCODE:
		1508	{
		1509	STRLEN svlen;
		1510	char *svptr = SvPVbyte (data, svlen);
		1511	UV len = SvUV (length);
		1512
		1513	if (offset < 0)
		1514	offset += svlen;
		1515
		1516	if (offset < 0 || offset > svlen)
		1517	croak ("offset outside of scalar");
		1518
		1519	if (!SvOK (length) || len + offset > svlen)
		1520	len = svlen - offset;
		1521
		1522	{
		1523	dREQ;
		1524
		1525	req->type = EIO_MLOCK;
		1526	req->sv2 = SvREFCNT_inc (data);
		1527	req->ptr2 = (char *)svptr + offset;
		1528	req->size = len;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1536	PPCODE:
		1537	{
		1538	dREQ;
		1539
		1540	req->type = EIO_MLOCKALL;
		1541	req->int1 = flags;
		1542
		1543	REQ_SEND;
		1544	}
		1545
		1546	void
1275	aio_busy (double delay, SV *callback=&PL_sv_undef)	1547	aio_busy (double delay, SV *callback=&PL_sv_undef)
1276	PPCODE:	1548	PPCODE:
1277	{	1549	{
1278	dREQ;	1550	dREQ;
1279		1551
…		…
1283	REQ_SEND;	1555	REQ_SEND;
1284	}	1556	}
1285		1557
1286	void	1558	void
1287	aio_group (SV *callback=&PL_sv_undef)	1559	aio_group (SV *callback=&PL_sv_undef)
1288	PROTOTYPE: ;$
1289	PPCODE:	1560	PPCODE:
1290	{	1561	{
1291	dREQ;	1562	dREQ;
1292		1563
1293	req->type = EIO_GROUP;	1564	req->type = EIO_GROUP;
…		…
1310	REQ_SEND;	1581	REQ_SEND;
1311	}	1582	}
1312		1583
1313	int	1584	int
1314	aioreq_pri (int pri = 0)	1585	aioreq_pri (int pri = 0)
1315	PROTOTYPE: ;$
1316	CODE:	1586	CODE:
1317	RETVAL = next_pri;	1587	RETVAL = next_pri;
1318	if (items > 0)	1588	if (items > 0)
1319	{	1589	{
1320	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1590	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1332	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1602	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1333	next_pri = nice;	1603	next_pri = nice;
1334		1604
1335	void	1605	void
1336	flush ()	1606	flush ()
1337	PROTOTYPE:
1338	CODE:	1607	CODE:
1339	while (eio_nreqs ())	1608	while (eio_nreqs ())
1340	{	1609	{
1341	poll_wait ();	1610	poll_wait ();
1342	poll_cb ();	1611	poll_cb ();
1343	}	1612	}
1344		1613
1345	int	1614	int
1346	poll()	1615	poll ()
1347	PROTOTYPE:
1348	CODE:	1616	CODE:
1349	poll_wait ();	1617	poll_wait ();
1350	RETVAL = poll_cb ();	1618	RETVAL = poll_cb ();
1351	OUTPUT:	1619	OUTPUT:
1352	RETVAL	1620	RETVAL
1353		1621
1354	int	1622	int
1355	poll_fileno()	1623	poll_fileno ()
1356	PROTOTYPE:
1357	CODE:	1624	CODE:
1358	RETVAL = s_epipe_fd (&respipe);	1625	RETVAL = s_epipe_fd (&respipe);
1359	OUTPUT:	1626	OUTPUT:
1360	RETVAL	1627	RETVAL
1361		1628
1362	int	1629	int
1363	poll_cb(...)	1630	poll_cb (...)
1364	PROTOTYPE:	1631	PROTOTYPE:
1365	CODE:	1632	CODE:
1366	RETVAL = poll_cb ();	1633	RETVAL = poll_cb ();
1367	OUTPUT:	1634	OUTPUT:
1368	RETVAL	1635	RETVAL
1369		1636
1370	void	1637	void
1371	poll_wait()	1638	poll_wait ()
1372	PROTOTYPE:
1373	CODE:	1639	CODE:
1374	poll_wait ();	1640	poll_wait ();
1375		1641
1376	int	1642	int
1377	nreqs()	1643	nreqs ()
1378	PROTOTYPE:
1379	CODE:	1644	CODE:
1380	RETVAL = eio_nreqs ();	1645	RETVAL = eio_nreqs ();
1381	OUTPUT:	1646	OUTPUT:
1382	RETVAL	1647	RETVAL
1383		1648
1384	int	1649	int
1385	nready()	1650	nready ()
1386	PROTOTYPE:
1387	CODE:	1651	CODE:
1388	RETVAL = eio_nready ();	1652	RETVAL = eio_nready ();
1389	OUTPUT:	1653	OUTPUT:
1390	RETVAL	1654	RETVAL
1391		1655
1392	int	1656	int
1393	npending()	1657	npending ()
1394	PROTOTYPE:
1395	CODE:	1658	CODE:
1396	RETVAL = eio_npending ();	1659	RETVAL = eio_npending ();
1397	OUTPUT:	1660	OUTPUT:
1398	RETVAL	1661	RETVAL
1399		1662
1400	int	1663	int
1401	nthreads()	1664	nthreads ()
1402	PROTOTYPE:
1403	CODE:	1665	CODE:
1404	RETVAL = eio_nthreads ();	1666	RETVAL = eio_nthreads ();
1405	OUTPUT:	1667	OUTPUT:
1406	RETVAL	1668	RETVAL
1407		1669
1408	int	1670	int
1409	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1671	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1410	PROTOTYPE: $$$$
1411	CODE:	1672	CODE:
1412	RETVAL = posix_fadvise (fh, offset, length, advice);	1673	RETVAL = posix_fadvise (fh, offset, length, advice);
1413	OUTPUT:	1674	OUTPUT:
1414	RETVAL	1675	RETVAL
1415		1676
1416	ssize_t	1677	IV
1417	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1678	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1418	PROTOTYPE: $$$$
1419	CODE:	1679	CODE:
1420	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1680	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1421	OUTPUT:	1681	OUTPUT:
1422	RETVAL	1682	RETVAL
1423		1683
1424	void	1684	void
1425	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1685	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1426	PROTOTYPE: $$$$$;$
1427	PPCODE:	1686	PPCODE:
1428	sv_unmagic (scalar, MMAP_MAGIC);	1687	sv_unmagic (scalar, MMAP_MAGIC);
1429	{	1688	{
1430	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1689	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1431	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1690	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1454	XSRETURN_YES;	1713	XSRETURN_YES;
1455	}	1714	}
1456		1715
1457	void	1716	void
1458	munmap (SV *scalar)	1717	munmap (SV *scalar)
1459	PROTOTYPE: $
1460	CODE:	1718	CODE:
1461	sv_unmagic (scalar, MMAP_MAGIC);	1719	sv_unmagic (scalar, MMAP_MAGIC);
1462		1720
1463	int	1721	int
1464	madvise (SV *scalar, off_t offset, off_t length, IV advice_or_prot)	1722	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1465	ALIAS:	1723	ALIAS:
1466	mprotect = 1	1724	mprotect = 1
1467	PROTOTYPE: $$$$
1468	CODE:	1725	CODE:
1469	{	1726	{
1470	STRLEN cur;	1727	STRLEN svlen;
1471	char *addr = SvPVbyte (scalar, cur);	1728	void *addr = SvPVbyte (scalar, svlen);
		1729	size_t len = SvUV (length);
1472		1730
1473	if (offset > cur)	1731	if (offset < 0)
1474	RETVAL = errno = EFAULT;	1732	offset += svlen;
1475	else	1733
		1734	if (offset < 0 || offset > svlen)
		1735	croak ("offset outside of scalar");
		1736
		1737	if (!SvOK (length) || len + offset > svlen)
		1738	len = svlen - offset;
		1739
		1740	addr = (void *)(((intptr_t)addr) + offset);
		1741	eio_page_align (&addr, &len);
		1742
		1743	switch (ix)
1476	{	1744	{
1477	if (!SvOK (ST (2)))
1478	length = cur - offset;
1479
1480	if (offset + length > cur)
1481	RETVAL = errno = EFAULT;
1482	else
1483	switch (ix)
1484	{
1485	case 0: RETVAL = posix_madvise (addr + offset, length, advice_or_prot); break;	1745	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1486	case 1: RETVAL = mprotect (addr + offset, length, advice_or_prot); break;	1746	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1487	}
1488	}	1747	}
1489	}	1748	}
1490	OUTPUT:	1749	OUTPUT:
1491	RETVAL	1750	RETVAL
1492		1751
1493	int	1752	int
1494	mlockall (int flags)	1753	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1495	PROTOTYPE: $
1496	CODE:	1754	CODE:
		1755	{
		1756	STRLEN svlen;
		1757	void *addr = SvPVbyte (scalar, svlen);
		1758	size_t len = SvUV (length);
		1759
		1760	if (offset < 0)
		1761	offset += svlen;
		1762
		1763	if (offset < 0 || offset > svlen)
		1764	croak ("offset outside of scalar");
		1765
		1766	if (!SvOK (length) || len + offset > svlen)
		1767	len = svlen - offset;
		1768
		1769	addr = (void *)(((intptr_t)addr) + offset);
		1770	eio_page_align (&addr, &len);
1497	#if _POSIX_MEMLOCK	1771	#if _POSIX_MEMLOCK_RANGE
1498	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1772	RETVAL = munlock (addr, len);
1499	extern int mallopt (int, int);
1500	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1501	#endif
1502	mlockall (flags);
1503	#else	1773	#else
1504	RETVAL = -1;	1774	RETVAL = ((errno = ENOSYS), -1);
1505	errno = ENOSYS;
1506	#endif	1775	#endif
		1776	}
1507	OUTPUT:	1777	OUTPUT:
1508	RETVAL	1778	RETVAL
1509		1779
1510	int	1780	int
1511	munlockall ()	1781	munlockall ()
1512	PROTOTYPE:
1513	CODE:	1782	CODE:
1514	#if _POSIX_MEMLOCK	1783	#if _POSIX_MEMLOCK
1515	munlockall ();	1784	munlockall ();
1516	#else	1785	#else
1517	RETVAL = -1;	1786	RETVAL = -1;
…		…
1525	SvREFCNT_dec (on_next_submit);	1794	SvREFCNT_dec (on_next_submit);
1526	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1795	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1527		1796
1528	PROTOTYPES: DISABLE	1797	PROTOTYPES: DISABLE
1529		1798
		1799	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1800
		1801	BOOT:
		1802	{
		1803	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1804	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1805	}
		1806
		1807	void
		1808	DESTROY (SV *self)
		1809	CODE:
		1810	{
		1811	aio_wd wd = SvAIO_WD (self);
		1812	#if HAVE_AT
		1813	{
		1814	SV *callback = &PL_sv_undef;
		1815	dREQ; /* clobbers next_pri :/ */
		1816	next_pri = req->pri; /* restore next_pri */
		1817	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1818	req->type = EIO_WD_CLOSE;
		1819	req->wd = wd;
		1820	REQ_SEND;
		1821	}
		1822	#else
		1823	eio_wd_close_sync (wd);
		1824	#endif
		1825	}
		1826
1530	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1827	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1531		1828
1532	void	1829	void
1533	cancel (aio_req_ornot req)	1830	cancel (aio_req_ornot req)
1534	CODE:	1831	CODE:

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