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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.165 by root, Sun May 9 20:42:55 2010 UTC vs.
Revision 1.203 by root, Thu Sep 29 23:06:24 2011 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
		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	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
82		76
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
108		102
109	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
112		106
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		108
115	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
116	SV *callback; \	110	SV *callback; \
117	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
118	STRLEN stroffset; \	113	STRLEN stroffset; \
119	SV *self;	114	SV *self;
120		115
121	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
122		117
		118	#include "libeio/config.h"
123	#include "libeio/eio.h"	119	#include "libeio/eio.h"
		120
		121	static int req_invoke (eio_req *req);
		122	#define EIO_FINISH(req) req_invoke (req)
		123	static void req_destroy (eio_req *grp);
		124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	/* Linux/others */
		129	#ifndef O_ASYNC
		130	# define O_ASYNC 0
		131	#endif
		132	#ifndef O_DIRECT
		133	# define O_DIRECT 0
		134	#endif
		135	#ifndef O_NOATIME
		136	# define O_NOATIME 0
		137	#endif
		138
		139	/* POSIX */
		140	#ifndef O_CLOEXEC
		141	# define O_CLOEXEC 0
		142	#endif
		143	#ifndef O_NOFOLLOW
		144	# define O_NOFOLLOW 0
		145	#endif
		146	#ifndef O_NOCTTY
		147	# define O_NOCTTY 0
		148	#endif
		149	#ifndef O_NONBLOCK
		150	# define O_NONBLOCK 0
		151	#endif
		152	#ifndef O_EXEC
		153	# define O_EXEC 0
		154	#endif
		155	#ifndef O_SEARCH
		156	# define O_SEARCH 0
		157	#endif
		158	#ifndef O_DIRECTORY
		159	# define O_DIRECTORY 0
		160	#endif
		161	#ifndef O_DSYNC
		162	# define O_DSYNC 0
		163	#endif
		164	#ifndef O_RSYNC
		165	# define O_RSYNC 0
		166	#endif
		167	#ifndef O_SYNC
		168	# define O_SYNC 0
		169	#endif
		170	#ifndef O_TTY_INIT
		171	# define O_TTY_INIT 0
		172	#endif
124		173
125	#ifndef POSIX_FADV_NORMAL	174	#ifndef POSIX_FADV_NORMAL
126	# define POSIX_FADV_NORMAL 0	175	# define POSIX_FADV_NORMAL 0
127	# define NO_FADVISE 1
128	#endif	176	#endif
129	#ifndef POSIX_FADV_SEQUENTIAL	177	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0	178	# define POSIX_FADV_SEQUENTIAL 0
131	#endif	179	#endif
132	#ifndef POSIX_FADV_RANDOM	180	#ifndef POSIX_FADV_RANDOM
…		…
140	#endif	188	#endif
141	#ifndef POSIX_FADV_DONTNEED	189	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0	190	# define POSIX_FADV_DONTNEED 0
143	#endif	191	#endif
144		192
		193	#if !HAVE_POSIX_FADVISE
		194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		195	#endif
		196
		197	#ifndef POSIX_MADV_NORMAL
		198	# define POSIX_MADV_NORMAL 0
		199	#endif
		200	#ifndef POSIX_MADV_SEQUENTIAL
		201	# define POSIX_MADV_SEQUENTIAL 0
		202	#endif
		203	#ifndef POSIX_MADV_RANDOM
		204	# define POSIX_MADV_RANDOM 0
		205	#endif
		206	#ifndef POSIX_MADV_WILLNEED
		207	# define POSIX_MADV_WILLNEED 0
		208	#endif
		209	#ifndef POSIX_MADV_DONTNEED
		210	# define POSIX_MADV_DONTNEED 0
		211	#endif
		212
		213	#if !HAVE_POSIX_MADVISE
		214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		215	#endif
		216
		217	#ifndef PROT_NONE
		218	# define PROT_NONE 0
		219	#endif
		220	#ifndef PROT_READ
		221	# define PROT_READ 0
		222	#endif
		223	#ifndef PROT_WRITE
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_EXEC
		227	# define PROT_EXEC 0
		228	#endif
		229
		230	#ifndef ST_RDONLY
		231	# define ST_RDONLY 0
		232	#endif
		233	#ifndef ST_NOSUID
		234	# define ST_NOSUID 0
		235	#endif
145	#ifndef ST_NODEV	236	#ifndef ST_NODEV
146	# define ST_NODEV 0	237	# define ST_NODEV 0
147	#endif	238	#endif
148	#ifndef ST_NOEXEC	239	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0	240	# define ST_NOEXEC 0
…		…
171	#endif	262	#endif
172	#ifndef ST_RELATIME	263	#ifndef ST_RELATIME
173	# define ST_RELATIME 0	264	# define ST_RELATIME 0
174	#endif	265	#endif
175		266
176	#ifndef MCL_CURRENT	267	#ifndef S_IFIFO
177	# define MCL_CURRENT 0	268	# define S_IFIFO 0
178	#endif	269	#endif
179	#ifndef MCL_FUTURE	270	#ifndef S_IFCHR
180	# define MCL_FUTURE 0	271	# define S_IFCHR 0
		272	#endif
		273	#ifndef S_IFBLK
		274	# define S_IFBLK 0
		275	#endif
		276	#ifndef S_IFLNK
		277	# define S_IFLNK 0
		278	#endif
		279	#ifndef S_IFREG
		280	# define S_IFREG 0
		281	#endif
		282	#ifndef S_IFDIR
		283	# define S_IFDIR 0
		284	#endif
		285	#ifndef S_IFWHT
		286	# define S_IFWHT 0
		287	#endif
		288	#ifndef S_IFSOCK
		289	# define S_IFSOCK 0
181	#endif	290	#endif
182		291
183	#ifndef MAP_ANONYMOUS	292	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	293	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	294	# define MAP_ANONYMOUS MAP_ANON
…		…
201	#endif	310	#endif
202	#ifndef MAP_NONBLOCK	311	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0	312	# define MAP_NONBLOCK 0
204	#endif	313	#endif
205		314
		315	#ifndef makedev
		316	# define makedev(maj,min) (((maj) << 8) | (min))
		317	#endif
		318	#ifndef major
		319	# define major(dev) ((dev) >> 8)
		320	#endif
		321	#ifndef minor
		322	# define minor(dev) ((dev) & 0xff)
		323	#endif
		324
206	#ifndef PAGESIZE	325	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	326	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	327	#endif
209
210	static int req_invoke (eio_req *req);
211	#define EIO_FINISH(req) req_invoke (req)
212	static void req_destroy (eio_req *grp);
213	#define EIO_DESTROY(req) req_destroy (req)
214		328
215	enum {	329	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	331	};
218		332
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
		335	typedef eio_wd aio_wd;
223		336
224	static SV *on_next_submit;	337	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	338	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	339	static int max_outstanding;
227		340
228	static s_epipe respipe;	341	static s_epipe respipe;
229		342
230	static void req_destroy (aio_req req);	343	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	344	static void req_cancel (aio_req req);
232		345
233	static void want_poll (void)	346	static void
		347	want_poll (void)
234	{	348	{
235	/* write a dummy byte to the pipe so fh becomes ready */	349	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	350	s_epipe_signal (&respipe);
237	}	351	}
238		352
239	static void done_poll (void)	353	static void
		354	done_poll (void)
240	{	355	{
241	/* read any signals sent by the worker threads */	356	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	357	s_epipe_drain (&respipe);
243	}	358	}
244		359
245	/* must be called at most once */	360	/* must be called at most once */
		361	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	362	req_sv (aio_req req, HV *stash)
247	{	363	{
248	if (!req->self)	364	if (!req->self)
249	{	365	{
250	req->self = (SV *)newHV ();	366	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	367	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	368	}
253		369
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	370	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	371	}
256		372
257	static aio_req SvAIO_REQ (SV *sv)	373	static SV *
		374	newSVaio_wd (aio_wd wd)
		375	{
		376	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		377	}
		378
		379	static aio_req
		380	SvAIO_REQ (SV *sv)
258	{	381	{
259	MAGIC *mg;	382	MAGIC *mg;
260		383
261	if (!SvROK (sv)	384	if (!SvROK (sv)
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	385	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
…		…
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	390	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		391
269	return mg ? (aio_req)mg->mg_ptr : 0;	392	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	393	}
271		394
		395	static aio_wd
		396	SvAIO_WD (SV *sv)
		397	{
		398	if (!SvROK (sv)
		399	|| SvSTASH (SvRV (sv)) != aio_wd_stash
		400	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
		401	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		402
		403	return (aio_wd)(long)SvIVX (SvRV (sv));
		404	}
		405
		406	static void
272	static void aio_grp_feed (aio_req grp)	407	aio_grp_feed (aio_req grp)
273	{	408	{
274	if (grp->sv2 && SvOK (grp->sv2))	409	if (grp->sv2 && SvOK (grp->sv2))
275	{	410	{
276	dSP;	411	dSP;
277		412
…		…
285	FREETMPS;	420	FREETMPS;
286	LEAVE;	421	LEAVE;
287	}	422	}
288	}	423	}
289		424
		425	static void
290	static void req_submit (eio_req *req)	426	req_submit (eio_req *req)
291	{	427	{
292	eio_submit (req);	428	eio_submit (req);
293		429
294	if (expect_false (on_next_submit))	430	if (expect_false (on_next_submit))
295	{	431	{
…		…
302	PUTBACK;	438	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	439	call_sv (cb, G_DISCARD | G_EVAL);
304	}	440	}
305	}	441	}
306		442
		443	static int
307	static int req_invoke (eio_req *req)	444	req_invoke (eio_req *req)
308	{	445	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	446	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	447	SvREADONLY_off (req->sv2);
313		448
314	if (!EIO_CANCELLED (req) && req->callback)	449	if (!EIO_CANCELLED (req) && req->callback)
315	{	450	{
		451	dSP;
316	static SV *sv_result_cache; /* caches the result integer SV */	452	static SV *sv_result_cache; /* caches the result integer SV */
317	SV *sv_result;	453	SV *sv_result;
318		454
319	ENTER;	455	ENTER;
320	SAVETMPS;	456	SAVETMPS;
…		…
324	/* do not recreate the result IV from scratch each time */	460	/* do not recreate the result IV from scratch each time */
325	if (expect_true (sv_result_cache))	461	if (expect_true (sv_result_cache))
326	{	462	{
327	sv_result = sv_result_cache; sv_result_cache = 0;	463	sv_result = sv_result_cache; sv_result_cache = 0;
328	SvIV_set (sv_result, req->result);	464	SvIV_set (sv_result, req->result);
		465	SvIOK_only (sv_result);
329	}	466	}
330	else	467	else
331	{	468	{
332	sv_result = newSViv (req->result);	469	sv_result = newSViv (req->result);
333	SvREADONLY_on (sv_result);	470	SvREADONLY_on (sv_result);
334	}	471	}
335		472
336	switch (req->type)	473	switch (req->type)
337	{	474	{
		475	case EIO_WD_OPEN:
		476	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		477	break;
		478
338	case EIO_READDIR:	479	case EIO_READDIR:
339	{	480	{
340	SV *rv = &PL_sv_undef;	481	SV *rv = &PL_sv_undef;
341		482
342	if (req->result >= 0)	483	if (req->result >= 0)
…		…
430	case EIO_STATVFS:	571	case EIO_STATVFS:
431	case EIO_FSTATVFS:	572	case EIO_FSTATVFS:
432	{	573	{
433	SV *rv = &PL_sv_undef;	574	SV *rv = &PL_sv_undef;
434		575
		576	#ifndef _WIN32
435	if (req->result >= 0)	577	if (req->result >= 0)
436	{	578	{
437	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	579	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
438	HV *hv = newHV ();	580	HV *hv = newHV ();
439		581
…		…
449	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	591	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
450	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	592	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
451	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	593	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
452	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	594	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
453	}	595	}
		596	#endif
454		597
455	PUSHs (rv);	598	PUSHs (rv);
456	}	599	}
457		600
458	break;	601	break;
…		…
474	case EIO_NOP:	617	case EIO_NOP:
475	case EIO_BUSY:	618	case EIO_BUSY:
476	break;	619	break;
477		620
478	case EIO_READLINK:	621	case EIO_READLINK:
		622	case EIO_REALPATH:
479	if (req->result > 0)	623	if (req->result > 0)
480	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	624	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
481	break;	625	break;
482		626
483	case EIO_STAT:	627	case EIO_STAT:
484	case EIO_LSTAT:	628	case EIO_LSTAT:
485	case EIO_FSTAT:	629	case EIO_FSTAT:
486	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	630	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		631
487	PL_laststatval = req->result;	632	if (!(PL_laststatval = req->result))
		633	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
488	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	634	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		635
489	PUSHs (sv_result);	636	PUSHs (sv_result);
490	break;	637	break;
491		638
492	case EIO_READ:	639	case EIO_READ:
493	{	640	{
…		…
497	SvSETMAGIC (req->sv2);	644	SvSETMAGIC (req->sv2);
498	PUSHs (sv_result);	645	PUSHs (sv_result);
499	}	646	}
500	break;	647	break;
501		648
502	case EIO_DUP2:	649	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
503	if (req->result > 0)	650	if (req->result > 0)
504	SvIV_set (sv_result, 0);	651	SvIV_set (sv_result, 0);
505	/* FALLTHROUGH */	652	/* FALLTHROUGH */
506		653
507	default:	654	default:
…		…
527	}	674	}
528		675
529	return !!SvTRUE (ERRSV);	676	return !!SvTRUE (ERRSV);
530	}	677	}
531		678
		679	static void
532	static void req_destroy (aio_req req)	680	req_destroy (aio_req req)
533	{	681	{
534	if (req->self)	682	if (req->self)
535	{	683	{
536	sv_unmagic (req->self, PERL_MAGIC_ext);	684	sv_unmagic (req->self, PERL_MAGIC_ext);
537	SvREFCNT_dec (req->self);	685	SvREFCNT_dec (req->self);
538	}	686	}
539		687
540	SvREFCNT_dec (req->sv1);	688	SvREFCNT_dec (req->sv1);
541	SvREFCNT_dec (req->sv2);	689	SvREFCNT_dec (req->sv2);
		690	SvREFCNT_dec (req->sv3);
		691	SvREFCNT_dec (req->sv4);
542	SvREFCNT_dec (req->callback);	692	SvREFCNT_dec (req->callback);
543		693
544	Safefree (req);	694	Safefree (req);
545	}	695	}
546		696
		697	static void
547	static void req_cancel_subs (aio_req grp)	698	req_cancel_subs (aio_req grp)
548	{	699	{
549	aio_req sub;
550
551	if (grp->type != EIO_GROUP)	700	if (grp->type != EIO_GROUP)
552	return;	701	return;
553		702
554	SvREFCNT_dec (grp->sv2);	703	SvREFCNT_dec (grp->sv2);
555	grp->sv2 = 0;	704	grp->sv2 = 0;
556		705
557	eio_grp_cancel (grp);	706	eio_grp_cancel (grp);
558	}	707	}
559		708
560	static void	709	static void ecb_cold
561	create_respipe (void)	710	create_respipe (void)
562	{	711	{
563	if (s_epipe_renew (&respipe))	712	if (s_epipe_renew (&respipe))
564	croak ("IO::AIO: unable to initialize result pipe");	713	croak ("IO::AIO: unable to initialize result pipe");
565	}	714	}
566		715
567	static void poll_wait (void)	716	static void
		717	poll_wait (void)
568	{	718	{
569	while (eio_nreqs ())	719	while (eio_nreqs ())
570	{	720	{
571	int size;	721	int size;
572		722
…		…
581		731
582	s_epipe_wait (&respipe);	732	s_epipe_wait (&respipe);
583	}	733	}
584	}	734	}
585		735
586	static int poll_cb (void)	736	static int
		737	poll_cb (void)
587	{	738	{
588	for (;;)	739	for (;;)
589	{	740	{
590	int res = eio_poll ();	741	int res = eio_poll ();
591		742
…		…
597		748
598	poll_wait ();	749	poll_wait ();
599	}	750	}
600	}	751	}
601		752
602	static void atfork_child (void)	753	static void ecb_cold
		754	reinit (void)
603	{	755	{
604	create_respipe ();	756	create_respipe ();
		757
		758	if (eio_init (want_poll, done_poll) < 0)
		759	croak ("IO::AIO: unable to initialise eio library");
605	}	760	}
606		761
607	/*****************************************************************************/	762	/*****************************************************************************/
608		763
609	#if !_POSIX_MAPPED_FILES	764	#if !_POSIX_MAPPED_FILES
610	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	765	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
611	# define munmap(addr,length) (errno = ENOSYS, -1)	766	# define munmap(addr,length) (errno = ENOSYS, -1)
612	#endif	767	#endif
613		768
		769	#if !_POSIX_MEMORY_PROTECTION
		770	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		771	# define PROT_NONE 0
		772	# define PROT_WRITE 0
		773	# define MAP_PRIVATE 0
		774	# define MAP_SHARED 0
		775	# define MAP_FIXED 0
		776	#endif
		777
614	#define MMAP_MAGIC PERL_MAGIC_ext	778	#define MMAP_MAGIC PERL_MAGIC_ext
615		779
616	static int	780	static int ecb_cold
617	mmap_free (pTHX_ SV *sv, MAGIC *mg)	781	mmap_free (pTHX_ SV *sv, MAGIC *mg)
618	{	782	{
619	int old_errno = errno;	783	int old_errno = errno;
620	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	784	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
621	errno = old_errno;	785	errno = old_errno;
622		786
623	mg->mg_obj = 0; /* just in case */	787	mg->mg_obj = 0; /* just in case */
624		788
625	SvREADONLY_off (sv);	789	SvREADONLY_off (sv);
		790
		791	if (SvPVX (sv) != mg->mg_ptr)
		792	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		793
626	SvCUR_set (sv, 0);	794	SvCUR_set (sv, 0);
627	SvLEN_set (sv, 0);
628	SvPVX (sv) = 0;	795	SvPVX (sv) = 0;
629	SvOK_off (sv);	796	SvOK_off (sv);
630		797
631	return 0;	798	return 0;
632	}	799	}
…		…
642	{	809	{
643	SvGETMAGIC (cb_sv);	810	SvGETMAGIC (cb_sv);
644	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	811	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
645	}	812	}
646		813
		814	static aio_req ecb_noinline
		815	dreq (SV *callback)
		816	{
		817	SV *cb_cv;
		818	aio_req req;
		819	int req_pri = next_pri;
		820	next_pri = EIO_PRI_DEFAULT;
		821
		822	cb_cv = get_cb (callback);
		823
		824	Newz (0, req, 1, eio_req);
		825	if (!req)
		826	croak ("out of memory during eio_req allocation");
		827
		828	req->callback = SvREFCNT_inc (cb_cv);
		829	req->pri = req_pri;
		830
		831	return req;
		832	}
		833
647	#define dREQ \	834	#define dREQ \
648	SV *cb_cv; \	835	aio_req req = dreq (callback); \
649	aio_req req; \
650	int req_pri = next_pri; \
651	next_pri = EIO_PRI_DEFAULT; \
652	\
653	cb_cv = get_cb (callback); \
654	\
655	Newz (0, req, 1, eio_req); \
656	if (!req) \
657	croak ("out of memory during eio_req allocation"); \
658	\
659	req->callback = SvREFCNT_inc (cb_cv); \
660	req->pri = req_pri
661		836
662	#define REQ_SEND \	837	#define REQ_SEND \
663	PUTBACK; \	838	PUTBACK; \
664	req_submit (req); \	839	req_submit (req); \
665	SPAGAIN; \	840	SPAGAIN; \
666	\	841	\
667	if (GIMME_V != G_VOID) \	842	if (GIMME_V != G_VOID) \
668	XPUSHs (req_sv (req, aio_req_stash));	843	XPUSHs (req_sv (req, aio_req_stash));
		844
		845	ecb_inline void
		846	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		847	{
		848	if (expect_false (SvROK (path)))
		849	{
		850	AV *av = (AV *)SvRV (path);
		851	SV *wdob;
		852
		853	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
		854	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
		855
		856	path = AvARRAY (av)[1];
		857	wdob = AvARRAY (av)[0];
		858
		859	if (SvOK (wdob))
		860	{
		861	*wd = SvAIO_WD (wdob);
		862	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		863	}
		864	else
		865	*wd = EIO_INVALID_WD;
		866	}
		867
		868	*pathsv = newSVsv (path);
		869	*ptr = SvPVbyte_nolen (*pathsv);
		870	}
		871
		872	static void ecb_noinline
		873	req_set_path1 (aio_req req, SV *path)
		874	{
		875	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		876	}
		877
		878	static void ecb_noinline
		879	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		880	{
		881	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		882
		883	switch (SvTYPE (rv))
		884	{
		885	case SVt_PVIO:
		886	case SVt_PVLV:
		887	case SVt_PVGV:
		888	req->type = type_fh;
		889	req->sv1 = newSVsv (fh_or_path);
		890	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		891	break;
		892
		893	default:
		894	req->type = type_path;
		895	req_set_path1 (req, fh_or_path);
		896	break;
		897	}
		898	}
		899
		900	XS(boot_IO__AIO) ecb_cold;
669		901
670	MODULE = IO::AIO PACKAGE = IO::AIO	902	MODULE = IO::AIO PACKAGE = IO::AIO
671		903
672	PROTOTYPES: ENABLE	904	PROTOTYPES: ENABLE
673		905
…		…
687	const_iv (O_RDWR)	919	const_iv (O_RDWR)
688	const_iv (O_CREAT)	920	const_iv (O_CREAT)
689	const_iv (O_TRUNC)	921	const_iv (O_TRUNC)
690	const_iv (O_EXCL)	922	const_iv (O_EXCL)
691	const_iv (O_APPEND)	923	const_iv (O_APPEND)
692	#ifndef _WIN32	924
		925	const_iv (O_ASYNC)
		926	const_iv (O_DIRECT)
		927	const_iv (O_NOATIME)
		928
		929	const_iv (O_CLOEXEC)
		930	const_iv (O_NOCTTY)
		931	const_iv (O_NOFOLLOW)
		932	const_iv (O_NONBLOCK)
		933	const_iv (O_EXEC)
		934	const_iv (O_SEARCH)
		935	const_iv (O_DIRECTORY)
		936	const_iv (O_DSYNC)
		937	const_iv (O_RSYNC)
		938	const_iv (O_SYNC)
		939	const_iv (O_TTY_INIT)
		940
693	const_iv (S_IFIFO)	941	const_iv (S_IFIFO)
694	#endif	942	const_iv (S_IFCHR)
		943	const_iv (S_IFBLK)
		944	const_iv (S_IFLNK)
		945	const_iv (S_IFREG)
		946	const_iv (S_IFDIR)
		947	const_iv (S_IFWHT)
		948	const_iv (S_IFSOCK)
		949	const_iv (S_IFMT)
		950
695	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	951	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
696	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	952	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
697	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	953	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
698	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	954	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
699	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	955	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
700	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	956	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		957
		958	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		959	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		960	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		961	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		962	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
701		963
702	const_iv (ST_RDONLY)	964	const_iv (ST_RDONLY)
703	const_iv (ST_NOSUID)	965	const_iv (ST_NOSUID)
704	const_iv (ST_NODEV)	966	const_iv (ST_NODEV)
705	const_iv (ST_NOEXEC)	967	const_iv (ST_NOEXEC)
…		…
710	const_iv (ST_IMMUTABLE)	972	const_iv (ST_IMMUTABLE)
711	const_iv (ST_NOATIME)	973	const_iv (ST_NOATIME)
712	const_iv (ST_NODIRATIME)	974	const_iv (ST_NODIRATIME)
713	const_iv (ST_RELATIME)	975	const_iv (ST_RELATIME)
714		976
		977	const_iv (PROT_NONE)
715	const_iv (PROT_EXEC)	978	const_iv (PROT_EXEC)
716	const_iv (PROT_NONE)
717	const_iv (PROT_READ)	979	const_iv (PROT_READ)
718	const_iv (PROT_WRITE)	980	const_iv (PROT_WRITE)
719		981
720	/*const_iv (MAP_FIXED)*/	982	/*const_iv (MAP_FIXED)*/
721	const_iv (MAP_PRIVATE)	983	const_iv (MAP_PRIVATE)
…		…
727	const_iv (MAP_LOCKED)	989	const_iv (MAP_LOCKED)
728	const_iv (MAP_NORESERVE)	990	const_iv (MAP_NORESERVE)
729	const_iv (MAP_POPULATE)	991	const_iv (MAP_POPULATE)
730	const_iv (MAP_NONBLOCK)	992	const_iv (MAP_NONBLOCK)
731		993
732	const_iv (MCL_FUTURE)	994	const_eio (MCL_FUTURE)
733	const_iv (MCL_CURRENT)	995	const_eio (MCL_CURRENT)
734		996
735	const_eio (MS_ASYNC)	997	const_eio (MS_ASYNC)
736	const_eio (MS_INVALIDATE)	998	const_eio (MS_INVALIDATE)
737	const_eio (MS_SYNC)	999	const_eio (MS_SYNC)
738		1000
739	const_eio (MT_MODIFY)	1001	const_eio (MT_MODIFY)
740		1002
741	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1003	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
742	const_eio (SYNC_FILE_RANGE_WRITE)	1004	const_eio (SYNC_FILE_RANGE_WRITE)
743	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1005	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1006
		1007	const_eio (FALLOC_FL_KEEP_SIZE)
744		1008
745	const_eio (READDIR_DENTS)	1009	const_eio (READDIR_DENTS)
746	const_eio (READDIR_DIRS_FIRST)	1010	const_eio (READDIR_DIRS_FIRST)
747	const_eio (READDIR_STAT_ORDER)	1011	const_eio (READDIR_STAT_ORDER)
748	const_eio (READDIR_FOUND_UNKNOWN)	1012	const_eio (READDIR_FOUND_UNKNOWN)
…		…
759	};	1023	};
760		1024
761	aio_stash = gv_stashpv ("IO::AIO" , 1);	1025	aio_stash = gv_stashpv ("IO::AIO" , 1);
762	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1026	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
763	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1027	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1028	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
764		1029
765	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1030	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
766	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1031	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
767		1032
768	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1033	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
769		1034
770	create_respipe ();	1035	reinit ();
771
772	if (eio_init (want_poll, done_poll) < 0)
773	croak ("IO::AIO: unable to initialise eio library");
774
775	/* atfork child called in fifo order, so before eio's handler */
776	X_THREAD_ATFORK (0, 0, atfork_child);
777	}	1036	}
778		1037
779	void	1038	void
		1039	reinit ()
		1040	PROTOTYPE:
		1041
		1042	void
780	max_poll_reqs (int nreqs)	1043	max_poll_reqs (unsigned int nreqs)
781	PROTOTYPE: $	1044	PROTOTYPE: $
782	CODE:	1045	CODE:
783	eio_set_max_poll_reqs (nreqs);	1046	eio_set_max_poll_reqs (nreqs);
784		1047
785	void	1048	void
…		…
787	PROTOTYPE: $	1050	PROTOTYPE: $
788	CODE:	1051	CODE:
789	eio_set_max_poll_time (nseconds);	1052	eio_set_max_poll_time (nseconds);
790		1053
791	void	1054	void
792	min_parallel (int nthreads)	1055	min_parallel (unsigned int nthreads)
793	PROTOTYPE: $	1056	PROTOTYPE: $
794	CODE:	1057	CODE:
795	eio_set_min_parallel (nthreads);	1058	eio_set_min_parallel (nthreads);
796		1059
797	void	1060	void
798	max_parallel (int nthreads)	1061	max_parallel (unsigned int nthreads)
799	PROTOTYPE: $	1062	PROTOTYPE: $
800	CODE:	1063	CODE:
801	eio_set_max_parallel (nthreads);	1064	eio_set_max_parallel (nthreads);
802		1065
803	void	1066	void
804	max_idle (int nthreads)	1067	max_idle (unsigned int nthreads)
805	PROTOTYPE: $	1068	PROTOTYPE: $
806	CODE:	1069	CODE:
807	eio_set_max_idle (nthreads);	1070	eio_set_max_idle (nthreads);
808		1071
809	void	1072	void
		1073	idle_timeout (unsigned int seconds)
		1074	PROTOTYPE: $
		1075	CODE:
		1076	eio_set_idle_timeout (seconds);
		1077
		1078	void
810	max_outstanding (int maxreqs)	1079	max_outstanding (unsigned int maxreqs)
811	PROTOTYPE: $	1080	PROTOTYPE: $
812	CODE:	1081	CODE:
813	max_outstanding = maxreqs;	1082	max_outstanding = maxreqs;
814		1083
815	void	1084	void
		1085	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1086	PPCODE:
		1087	{
		1088	dREQ;
		1089
		1090	req->type = EIO_WD_OPEN;
		1091	req_set_path1 (req, pathname);
		1092
		1093	REQ_SEND;
		1094	}
		1095
		1096	void
816	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1097	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1098	PPCODE:
819	{	1099	{
820	dREQ;	1100	dREQ;
821		1101
822	req->type = EIO_OPEN;	1102	req->type = EIO_OPEN;
823	req->sv1 = newSVsv (pathname);	1103	req_set_path1 (req, pathname);
824	req->ptr1 = SvPVbyte_nolen (req->sv1);
825	req->int1 = flags;	1104	req->int1 = flags;
826	req->int2 = mode;	1105	req->int2 = mode;
827		1106
828	REQ_SEND;	1107	REQ_SEND;
829	}	1108	}
830		1109
831	void	1110	void
832	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1111	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
833	PROTOTYPE: $;$
834	ALIAS:	1112	ALIAS:
835	aio_fsync = EIO_FSYNC	1113	aio_fsync = EIO_FSYNC
836	aio_fdatasync = EIO_FDATASYNC	1114	aio_fdatasync = EIO_FDATASYNC
		1115	aio_syncfs = EIO_SYNCFS
837	PPCODE:	1116	PPCODE:
838	{	1117	{
839	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
840	dREQ;	1119	dREQ;
841		1120
…		…
846	REQ_SEND (req);	1125	REQ_SEND (req);
847	}	1126	}
848		1127
849	void	1128	void
850	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1129	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
851	PROTOTYPE: $$$$;$
852	PPCODE:	1130	PPCODE:
853	{	1131	{
854	int fd = s_fileno_croak (fh, 0);	1132	int fd = s_fileno_croak (fh, 0);
855	dREQ;	1133	dREQ;
856		1134
…		…
863		1141
864	REQ_SEND (req);	1142	REQ_SEND (req);
865	}	1143	}
866		1144
867	void	1145	void
868	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1146	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
869	PROTOTYPE: $;$
870	PPCODE:	1147	PPCODE:
871	{	1148	{
872	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
873	int fd = s_fileno_croak (fh, 0);	1149	int fd = s_fileno_croak (fh, 0);
874	dREQ;	1150	dREQ;
875		1151
876	if (close_pipe < 0)	1152	req->type = EIO_FALLOCATE;
		1153	req->sv1 = newSVsv (fh);
		1154	req->int1 = fd;
		1155	req->int2 = mode;
		1156	req->offs = offset;
		1157	req->size = len;
		1158
		1159	REQ_SEND (req);
		1160	}
		1161
		1162	void
		1163	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1164	PPCODE:
		1165	{
		1166	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1167	int fd = s_fileno_croak (fh, 0);
		1168	dREQ;
		1169
		1170	if (expect_false (close_fd < 0))
877	{	1171	{
878	int pipefd [2];	1172	int pipefd [2];
879		1173
		1174	if (
		1175	#ifdef _WIN32
		1176	_pipe (pipefd, 1, _O_BINARY) < 0
		1177	#else
880	if (pipe (pipefd) < 0	1178	pipe (pipefd) < 0
881	|| close (pipefd [1]) < 0
882	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1179	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1180	#endif
		1181	|| close (pipefd [1]) < 0
		1182	)
883	abort (); /*D*/	1183	abort (); /*D*/
884		1184
885	close_pipe = pipefd [0];	1185	close_fd = pipefd [0];
886	}	1186	}
887		1187
888	req->type = EIO_DUP2;	1188	req->type = EIO_DUP2;
889	req->int1 = close_pipe;	1189	req->int1 = close_fd;
890	req->sv2 = newSVsv (fh);	1190	req->sv2 = newSVsv (fh);
891	req->int2 = fd;	1191	req->int2 = fd;
892		1192
893	REQ_SEND (req);	1193	REQ_SEND (req);
894	}	1194	}
…		…
896	void	1196	void
897	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
898	ALIAS:	1198	ALIAS:
899	aio_read = EIO_READ	1199	aio_read = EIO_READ
900	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
901	PROTOTYPE: $$$$$;$
902	PPCODE:	1201	PPCODE:
903	{	1202	{
904	STRLEN svlen;	1203	STRLEN svlen;
905	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
906	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
…		…
946	REQ_SEND;	1245	REQ_SEND;
947	}	1246	}
948	}	1247	}
949		1248
950	void	1249	void
951	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1250	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
952	PROTOTYPE: $$;$	1251	ALIAS:
		1252	aio_readlink = EIO_READLINK
		1253	aio_realpath = EIO_REALPATH
953	PPCODE:	1254	PPCODE:
954	{	1255	{
955	SV *data;
956	dREQ;	1256	dREQ;
957		1257
958	req->type = EIO_READLINK;	1258	req->type = ix;
959	req->sv1 = newSVsv (path);	1259	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1260
962	REQ_SEND;	1261	REQ_SEND;
963	}	1262	}
964		1263
965	void	1264	void
966	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1265	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
967	PROTOTYPE: $$$$;$
968	PPCODE:	1266	PPCODE:
969	{	1267	{
970	int ifd = s_fileno_croak (in_fh , 0);	1268	int ifd = s_fileno_croak (in_fh , 0);
971	int ofd = s_fileno_croak (out_fh, 1);	1269	int ofd = s_fileno_croak (out_fh, 1);
972	dREQ;	1270	dREQ;
…		…
982	REQ_SEND;	1280	REQ_SEND;
983	}	1281	}
984		1282
985	void	1283	void
986	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1284	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
987	PROTOTYPE: $$$;$
988	PPCODE:	1285	PPCODE:
989	{	1286	{
990	int fd = s_fileno_croak (fh, 0);	1287	int fd = s_fileno_croak (fh, 0);
991	dREQ;	1288	dREQ;
992		1289
…		…
1007	aio_statvfs = EIO_STATVFS	1304	aio_statvfs = EIO_STATVFS
1008	PPCODE:	1305	PPCODE:
1009	{	1306	{
1010	dREQ;	1307	dREQ;
1011		1308
1012	req->sv1 = newSVsv (fh_or_path);	1309	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1013
1014	if (SvPOK (req->sv1))
1015	{
1016	req->type = ix;
1017	req->ptr1 = SvPVbyte_nolen (req->sv1);
1018	}
1019	else
1020	{
1021	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1022	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1023	}
1024		1310
1025	REQ_SEND;	1311	REQ_SEND;
1026	}	1312	}
		1313
		1314	UV
		1315	major (UV dev)
		1316	ALIAS:
		1317	minor = 1
		1318	CODE:
		1319	RETVAL = ix ? major (dev) : minor (dev);
		1320	OUTPUT:
		1321	RETVAL
		1322
		1323	UV
		1324	makedev (UV maj, UV min)
		1325	CODE:
		1326	RETVAL = makedev (maj, min);
		1327	OUTPUT:
		1328	RETVAL
1027		1329
1028	void	1330	void
1029	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1331	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1030	PPCODE:	1332	PPCODE:
1031	{	1333	{
1032	dREQ;	1334	dREQ;
1033		1335
1034	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1336	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1035	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1337	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1036	req->sv1 = newSVsv (fh_or_path);	1338	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1037
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_UTIME;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FUTIME;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1339
1049	REQ_SEND;	1340	REQ_SEND;
1050	}	1341	}
1051		1342
1052	void	1343	void
1053	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1344	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1054	PPCODE:	1345	PPCODE:
1055	{	1346	{
1056	dREQ;	1347	dREQ;
1057		1348
1058	req->sv1 = newSVsv (fh_or_path);
1059	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1349	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1060		1350	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1061	if (SvPOK (req->sv1))
1062	{
1063	req->type = EIO_TRUNCATE;
1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
1065	}
1066	else
1067	{
1068	req->type = EIO_FTRUNCATE;
1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1070	}
1071		1351
1072	REQ_SEND;	1352	REQ_SEND;
1073	}	1353	}
1074		1354
1075	void	1355	void
1076	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1356	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1077	ALIAS:
1078	aio_chmod = EIO_CHMOD
1079	aio_mkdir = EIO_MKDIR
1080	PPCODE:	1357	PPCODE:
1081	{	1358	{
1082	dREQ;	1359	dREQ;
1083		1360
1084	req->int2 = mode;	1361	req->int2 = mode;
1085	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1086
1087	if (SvPOK (req->sv1))
1088	{
1089	req->type = ix;
1090	req->ptr1 = SvPVbyte_nolen (req->sv1);
1091	}
1092	else
1093	{
1094	req->type = EIO_FCHMOD;
1095	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1096	}
1097		1363
1098	REQ_SEND;	1364	REQ_SEND;
1099	}	1365	}
1100		1366
1101	void	1367	void
…		…
1104	{	1370	{
1105	dREQ;	1371	dREQ;
1106		1372
1107	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1373	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1108	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1374	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1109	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1110
1111	if (SvPOK (req->sv1))
1112	{
1113	req->type = EIO_CHOWN;
1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
1115	}
1116	else
1117	{
1118	req->type = EIO_FCHOWN;
1119	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1120	}
1121		1376
1122	REQ_SEND;	1377	REQ_SEND;
1123	}	1378	}
1124		1379
1125	void	1380	void
…		…
1127	PPCODE:	1382	PPCODE:
1128	{	1383	{
1129	dREQ;	1384	dREQ;
1130		1385
1131	req->type = EIO_READDIR;	1386	req->type = EIO_READDIR;
1132	req->sv1 = newSVsv (pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1387	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1135		1388
1136	if (flags & EIO_READDIR_DENTS)	1389	if (flags & EIO_READDIR_DENTS)
1137	req->int1 |= EIO_READDIR_CUSTOM2;	1390	req->int1 |= EIO_READDIR_CUSTOM2;
1138		1391
		1392	req_set_path1 (req, pathname);
		1393
1139	REQ_SEND;	1394	REQ_SEND;
		1395	}
		1396
		1397	void
		1398	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1399	PPCODE:
		1400	{
		1401	dREQ;
		1402
		1403	req->type = EIO_MKDIR;
		1404	req->int2 = mode;
		1405	req_set_path1 (req, pathname);
		1406
		1407	REQ_SEND;
1140	}	1408	}
1141		1409
1142	void	1410	void
1143	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1411	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1144	ALIAS:	1412	ALIAS:
…		…
1148	PPCODE:	1416	PPCODE:
1149	{	1417	{
1150	dREQ;	1418	dREQ;
1151		1419
1152	req->type = ix;	1420	req->type = ix;
1153	req->sv1 = newSVsv (pathname);	1421	req_set_path1 (req, pathname);
1154	req->ptr1 = SvPVbyte_nolen (req->sv1);
1155		1422
1156	REQ_SEND;	1423	REQ_SEND;
1157	}	1424	}
1158		1425
1159	void	1426	void
…		…
1163	aio_symlink = EIO_SYMLINK	1430	aio_symlink = EIO_SYMLINK
1164	aio_rename = EIO_RENAME	1431	aio_rename = EIO_RENAME
1165	PPCODE:	1432	PPCODE:
1166	{	1433	{
1167	dREQ;	1434	dREQ;
		1435	eio_wd wd2 = 0;
1168		1436
1169	req->type = ix;	1437	req->type = ix;
1170	req->sv1 = newSVsv (oldpath);	1438	req_set_path1 (req, oldpath);
1171	req->ptr1 = SvPVbyte_nolen (req->sv1);	1439	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1172	req->sv2 = newSVsv (newpath);	1440	req->int3 = (long)wd2;
1173	req->ptr2 = SvPVbyte_nolen (req->sv2);
1174		1441
1175	REQ_SEND;	1442	REQ_SEND;
1176	}	1443	}
1177		1444
1178	void	1445	void
…		…
1180	PPCODE:	1447	PPCODE:
1181	{	1448	{
1182	dREQ;	1449	dREQ;
1183		1450
1184	req->type = EIO_MKNOD;	1451	req->type = EIO_MKNOD;
1185	req->sv1 = newSVsv (pathname);
1186	req->ptr1 = SvPVbyte_nolen (req->sv1);
1187	req->int2 = (mode_t)mode;	1452	req->int2 = (mode_t)mode;
1188	req->offs = dev;	1453	req->offs = dev;
		1454	req_set_path1 (req, pathname);
1189		1455
1190	REQ_SEND;	1456	REQ_SEND;
1191	}	1457	}
1192		1458
1193	void	1459	void
1194	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1460	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1195	ALIAS:	1461	ALIAS:
1196	aio_mtouch = EIO_MTOUCH	1462	aio_mtouch = EIO_MTOUCH
1197	aio_msync = EIO_MSYNC	1463	aio_msync = EIO_MSYNC
1198	PROTOTYPE: $$$$;$
1199	PPCODE:	1464	PPCODE:
1200	{	1465	{
1201	STRLEN svlen;	1466	STRLEN svlen;
		1467	char *svptr = SvPVbyte (data, svlen);
1202	UV len = SvUV (length);	1468	UV len = SvUV (length);
1203	char *svptr = SvPVbyte (data, svlen);
1204		1469
1205	if (offset < 0)	1470	if (offset < 0)
1206	offset += svlen;	1471	offset += svlen;
1207		1472
1208	if (offset < 0 || offset > svlen)	1473	if (offset < 0 || offset > svlen)
…		…
1213		1478
1214	{	1479	{
1215	dREQ;	1480	dREQ;
1216		1481
1217	req->type = ix;	1482	req->type = ix;
1218	req->size = len;
1219	req->sv2 = SvREFCNT_inc (data);	1483	req->sv2 = SvREFCNT_inc (data);
1220	req->ptr2 = (char *)svptr + offset;	1484	req->ptr2 = (char *)svptr + offset;
		1485	req->size = len;
1221	req->int1 = flags;	1486	req->int1 = flags;
1222		1487
1223	REQ_SEND;	1488	REQ_SEND;
1224	}	1489	}
1225	}	1490	}
1226		1491
1227	void	1492	void
		1493	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1494	PPCODE:
		1495	{
		1496	STRLEN svlen;
		1497	char *svptr = SvPVbyte (data, svlen);
		1498	UV len = SvUV (length);
		1499
		1500	if (offset < 0)
		1501	offset += svlen;
		1502
		1503	if (offset < 0 || offset > svlen)
		1504	croak ("offset outside of scalar");
		1505
		1506	if (!SvOK (length) || len + offset > svlen)
		1507	len = svlen - offset;
		1508
		1509	{
		1510	dREQ;
		1511
		1512	req->type = EIO_MLOCK;
		1513	req->sv2 = SvREFCNT_inc (data);
		1514	req->ptr2 = (char *)svptr + offset;
		1515	req->size = len;
		1516
		1517	REQ_SEND;
		1518	}
		1519	}
		1520
		1521	void
		1522	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1523	PPCODE:
		1524	{
		1525	dREQ;
		1526
		1527	req->type = EIO_MLOCKALL;
		1528	req->int1 = flags;
		1529
		1530	REQ_SEND;
		1531	}
		1532
		1533	void
1228	aio_busy (double delay, SV *callback=&PL_sv_undef)	1534	aio_busy (double delay, SV *callback=&PL_sv_undef)
1229	PPCODE:	1535	PPCODE:
1230	{	1536	{
1231	dREQ;	1537	dREQ;
1232		1538
…		…
1236	REQ_SEND;	1542	REQ_SEND;
1237	}	1543	}
1238		1544
1239	void	1545	void
1240	aio_group (SV *callback=&PL_sv_undef)	1546	aio_group (SV *callback=&PL_sv_undef)
1241	PROTOTYPE: ;$
1242	PPCODE:	1547	PPCODE:
1243	{	1548	{
1244	dREQ;	1549	dREQ;
1245		1550
1246	req->type = EIO_GROUP;	1551	req->type = EIO_GROUP;
…		…
1263	REQ_SEND;	1568	REQ_SEND;
1264	}	1569	}
1265		1570
1266	int	1571	int
1267	aioreq_pri (int pri = 0)	1572	aioreq_pri (int pri = 0)
1268	PROTOTYPE: ;$
1269	CODE:	1573	CODE:
1270	RETVAL = next_pri;	1574	RETVAL = next_pri;
1271	if (items > 0)	1575	if (items > 0)
1272	{	1576	{
1273	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1577	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1285	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1589	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1286	next_pri = nice;	1590	next_pri = nice;
1287		1591
1288	void	1592	void
1289	flush ()	1593	flush ()
1290	PROTOTYPE:
1291	CODE:	1594	CODE:
1292	while (eio_nreqs ())	1595	while (eio_nreqs ())
1293	{	1596	{
1294	poll_wait ();	1597	poll_wait ();
1295	poll_cb ();	1598	poll_cb ();
1296	}	1599	}
1297		1600
1298	int	1601	int
1299	poll()	1602	poll ()
1300	PROTOTYPE:
1301	CODE:	1603	CODE:
1302	poll_wait ();	1604	poll_wait ();
1303	RETVAL = poll_cb ();	1605	RETVAL = poll_cb ();
1304	OUTPUT:	1606	OUTPUT:
1305	RETVAL	1607	RETVAL
1306		1608
1307	int	1609	int
1308	poll_fileno()	1610	poll_fileno ()
1309	PROTOTYPE:
1310	CODE:	1611	CODE:
1311	RETVAL = s_epipe_fd (&respipe);	1612	RETVAL = s_epipe_fd (&respipe);
1312	OUTPUT:	1613	OUTPUT:
1313	RETVAL	1614	RETVAL
1314		1615
1315	int	1616	int
1316	poll_cb(...)	1617	poll_cb (...)
1317	PROTOTYPE:	1618	PROTOTYPE:
1318	CODE:	1619	CODE:
1319	RETVAL = poll_cb ();	1620	RETVAL = poll_cb ();
1320	OUTPUT:	1621	OUTPUT:
1321	RETVAL	1622	RETVAL
1322		1623
1323	void	1624	void
1324	poll_wait()	1625	poll_wait ()
1325	PROTOTYPE:
1326	CODE:	1626	CODE:
1327	poll_wait ();	1627	poll_wait ();
1328		1628
1329	int	1629	int
1330	nreqs()	1630	nreqs ()
1331	PROTOTYPE:
1332	CODE:	1631	CODE:
1333	RETVAL = eio_nreqs ();	1632	RETVAL = eio_nreqs ();
1334	OUTPUT:	1633	OUTPUT:
1335	RETVAL	1634	RETVAL
1336		1635
1337	int	1636	int
1338	nready()	1637	nready ()
1339	PROTOTYPE:
1340	CODE:	1638	CODE:
1341	RETVAL = eio_nready ();	1639	RETVAL = eio_nready ();
1342	OUTPUT:	1640	OUTPUT:
1343	RETVAL	1641	RETVAL
1344		1642
1345	int	1643	int
1346	npending()	1644	npending ()
1347	PROTOTYPE:
1348	CODE:	1645	CODE:
1349	RETVAL = eio_npending ();	1646	RETVAL = eio_npending ();
1350	OUTPUT:	1647	OUTPUT:
1351	RETVAL	1648	RETVAL
1352		1649
1353	int	1650	int
1354	nthreads()	1651	nthreads ()
1355	PROTOTYPE:
1356	CODE:	1652	CODE:
1357	RETVAL = eio_nthreads ();	1653	RETVAL = eio_nthreads ();
1358	OUTPUT:	1654	OUTPUT:
1359	RETVAL	1655	RETVAL
1360		1656
1361	int	1657	int
1362	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1658	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1363	PROTOTYPE: $$$$
1364	CODE:	1659	CODE:
1365	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1366	RETVAL = posix_fadvise (fh, offset, length, advice);	1660	RETVAL = posix_fadvise (fh, offset, length, advice);
1367	#else
1368	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1369	#endif
1370	OUTPUT:	1661	OUTPUT:
1371	RETVAL	1662	RETVAL
1372		1663
1373	ssize_t	1664	IV
1374	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1665	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1375	PROTOTYPE: $$$$
1376	CODE:	1666	CODE:
1377	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1667	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1378	OUTPUT:	1668	OUTPUT:
1379	RETVAL	1669	RETVAL
1380		1670
1381	void	1671	void
1382	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1672	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1383	PROTOTYPE: $$$$$;$
1384	PPCODE:	1673	PPCODE:
1385	sv_unmagic (scalar, MMAP_MAGIC);	1674	sv_unmagic (scalar, MMAP_MAGIC);
1386	{	1675	{
1387	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1676	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1388	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1677	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389	if (addr == (void *)-1)	1678	if (addr == (void *)-1)
1390	XSRETURN_NO;	1679	XSRETURN_NO;
1391		1680
		1681	sv_force_normal (scalar);
		1682
1392	/* we store the length in mg_obj, as namlen is I32 :/ */	1683	/* we store the length in mg_obj, as namlen is I32 :/ */
1393	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1684	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394	->mg_obj = (SV *)length;	1685	->mg_obj = (SV *)length;
1395		1686
1396	SvUPGRADE (scalar, SVt_PV); /* nop... */	1687	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1688
1397	if (!(prot & PROT_WRITE))	1689	if (!(prot & PROT_WRITE))
1398	SvREADONLY_on (scalar);	1690	SvREADONLY_on (scalar);
		1691
		1692	if (SvLEN (scalar))
		1693	Safefree (SvPVX (scalar));
1399		1694
1400	SvPVX (scalar) = (char *)addr;	1695	SvPVX (scalar) = (char *)addr;
1401	SvCUR_set (scalar, length);	1696	SvCUR_set (scalar, length);
1402	SvLEN_set (scalar, 0);	1697	SvLEN_set (scalar, 0);
1403	SvPOK_only (scalar);	1698	SvPOK_only (scalar);
…		…
1405	XSRETURN_YES;	1700	XSRETURN_YES;
1406	}	1701	}
1407		1702
1408	void	1703	void
1409	munmap (SV *scalar)	1704	munmap (SV *scalar)
1410	PROTOTYPE: $
1411	CODE:	1705	CODE:
1412	sv_unmagic (scalar, MMAP_MAGIC);	1706	sv_unmagic (scalar, MMAP_MAGIC);
1413		1707
1414	int	1708	int
1415	mlockall (int flags)	1709	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1416	PROTOTYPE: $	1710	ALIAS:
		1711	mprotect = 1
1417	CODE:	1712	CODE:
		1713	{
		1714	STRLEN svlen;
		1715	void *addr = SvPVbyte (scalar, svlen);
		1716	size_t len = SvUV (length);
		1717
		1718	if (offset < 0)
		1719	offset += svlen;
		1720
		1721	if (offset < 0 || offset > svlen)
		1722	croak ("offset outside of scalar");
		1723
		1724	if (!SvOK (length) || len + offset > svlen)
		1725	len = svlen - offset;
		1726
		1727	addr = (void *)(((intptr_t)addr) + offset);
		1728	eio_page_align (&addr, &len);
		1729
		1730	switch (ix)
		1731	{
		1732	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1733	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1734	}
		1735	}
		1736	OUTPUT:
		1737	RETVAL
		1738
		1739	int
		1740	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1741	CODE:
		1742	{
		1743	STRLEN svlen;
		1744	void *addr = SvPVbyte (scalar, svlen);
		1745	size_t len = SvUV (length);
		1746
		1747	if (offset < 0)
		1748	offset += svlen;
		1749
		1750	if (offset < 0 || offset > svlen)
		1751	croak ("offset outside of scalar");
		1752
		1753	if (!SvOK (length) || len + offset > svlen)
		1754	len = svlen - offset;
		1755
		1756	addr = (void *)(((intptr_t)addr) + offset);
		1757	eio_page_align (&addr, &len);
1418	#if _POSIX_MEMLOCK	1758	#if _POSIX_MEMLOCK_RANGE
1419	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1759	RETVAL = munlock (addr, len);
1420	extern int mallopt (int, int);
1421	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1422	#endif
1423	mlockall (flags);
1424	#else	1760	#else
1425	RETVAL = -1;	1761	RETVAL = ((errno = ENOSYS), -1);
1426	errno = ENOSYS;
1427	#endif	1762	#endif
		1763	}
1428	OUTPUT:	1764	OUTPUT:
1429	RETVAL	1765	RETVAL
1430		1766
1431	int	1767	int
1432	munlockall ()	1768	munlockall ()
1433	PROTOTYPE:
1434	CODE:	1769	CODE:
1435	#if _POSIX_MEMLOCK	1770	#if _POSIX_MEMLOCK
1436	munlockall ();	1771	munlockall ();
1437	#else	1772	#else
1438	RETVAL = -1;	1773	RETVAL = -1;
…		…
1446	SvREFCNT_dec (on_next_submit);	1781	SvREFCNT_dec (on_next_submit);
1447	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1782	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1448		1783
1449	PROTOTYPES: DISABLE	1784	PROTOTYPES: DISABLE
1450		1785
		1786	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1787
		1788	BOOT:
		1789	{
		1790	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1791	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1792	}
		1793
		1794	void
		1795	DESTROY (SV *self)
		1796	CODE:
		1797	{
		1798	aio_wd wd = SvAIO_WD (self);
		1799	#if HAVE_AT
		1800	{
		1801	SV *callback = &PL_sv_undef;
		1802	dREQ; /* clobbers next_pri :/ */
		1803	next_pri = req->pri; /* restore next_pri */
		1804	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1805	req->type = EIO_WD_CLOSE;
		1806	req->wd = wd;
		1807	REQ_SEND;
		1808	}
		1809	#else
		1810	eio_wd_close_sync (wd);
		1811	#endif
		1812	}
		1813
1451	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1814	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1452		1815
1453	void	1816	void
1454	cancel (aio_req_ornot req)	1817	cancel (aio_req_ornot req)
1455	CODE:	1818	CODE:

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