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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.167 by root, Sun May 9 20:49:52 2010 UTC vs.
Revision 1.206 by root, Tue Oct 4 18:22:37 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)
		385	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	386	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	387	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	388	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	389	croak ("object of class IO::AIO::REQ expected");
266		390
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	391	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		392
269	return mg ? (aio_req)mg->mg_ptr : 0;	393	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	394	}
271		395
		396	static aio_wd
		397	SvAIO_WD (SV *sv)
		398	{
		399	if (!SvROK (sv)
		400	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		401	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		402	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		403
		404	return (aio_wd)(long)SvIVX (SvRV (sv));
		405	}
		406
		407	static void
272	static void aio_grp_feed (aio_req grp)	408	aio_grp_feed (aio_req grp)
273	{	409	{
274	if (grp->sv2 && SvOK (grp->sv2))	410	if (grp->sv2 && SvOK (grp->sv2))
275	{	411	{
276	dSP;	412	dSP;
277		413
…		…
285	FREETMPS;	421	FREETMPS;
286	LEAVE;	422	LEAVE;
287	}	423	}
288	}	424	}
289		425
		426	static void
290	static void req_submit (eio_req *req)	427	req_submit (eio_req *req)
291	{	428	{
292	eio_submit (req);	429	eio_submit (req);
293		430
294	if (expect_false (on_next_submit))	431	if (expect_false (on_next_submit))
295	{	432	{
…		…
302	PUTBACK;	439	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	440	call_sv (cb, G_DISCARD | G_EVAL);
304	}	441	}
305	}	442	}
306		443
		444	static int
307	static int req_invoke (eio_req *req)	445	req_invoke (eio_req *req)
308	{	446	{
309	if (req->flags & FLAG_SV2_RO_OFF)	447	if (req->flags & FLAG_SV2_RO_OFF)
310	SvREADONLY_off (req->sv2);	448	SvREADONLY_off (req->sv2);
311		449
312	if (!EIO_CANCELLED (req) && req->callback)	450	if (!EIO_CANCELLED (req) && req->callback)
…		…
323	/* do not recreate the result IV from scratch each time */	461	/* do not recreate the result IV from scratch each time */
324	if (expect_true (sv_result_cache))	462	if (expect_true (sv_result_cache))
325	{	463	{
326	sv_result = sv_result_cache; sv_result_cache = 0;	464	sv_result = sv_result_cache; sv_result_cache = 0;
327	SvIV_set (sv_result, req->result);	465	SvIV_set (sv_result, req->result);
		466	SvIOK_only (sv_result);
328	}	467	}
329	else	468	else
330	{	469	{
331	sv_result = newSViv (req->result);	470	sv_result = newSViv (req->result);
332	SvREADONLY_on (sv_result);	471	SvREADONLY_on (sv_result);
333	}	472	}
334		473
335	switch (req->type)	474	switch (req->type)
336	{	475	{
		476	case EIO_WD_OPEN:
		477	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		478	break;
		479
337	case EIO_READDIR:	480	case EIO_READDIR:
338	{	481	{
339	SV *rv = &PL_sv_undef;	482	SV *rv = &PL_sv_undef;
340		483
341	if (req->result >= 0)	484	if (req->result >= 0)
…		…
429	case EIO_STATVFS:	572	case EIO_STATVFS:
430	case EIO_FSTATVFS:	573	case EIO_FSTATVFS:
431	{	574	{
432	SV *rv = &PL_sv_undef;	575	SV *rv = &PL_sv_undef;
433		576
		577	#ifndef _WIN32
434	if (req->result >= 0)	578	if (req->result >= 0)
435	{	579	{
436	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	580	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437	HV *hv = newHV ();	581	HV *hv = newHV ();
438		582
…		…
448	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	592	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	593	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
450	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	594	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	595	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452	}	596	}
		597	#endif
453		598
454	PUSHs (rv);	599	PUSHs (rv);
455	}	600	}
456		601
457	break;	602	break;
…		…
473	case EIO_NOP:	618	case EIO_NOP:
474	case EIO_BUSY:	619	case EIO_BUSY:
475	break;	620	break;
476		621
477	case EIO_READLINK:	622	case EIO_READLINK:
		623	case EIO_REALPATH:
478	if (req->result > 0)	624	if (req->result > 0)
479	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	625	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480	break;	626	break;
481		627
482	case EIO_STAT:	628	case EIO_STAT:
483	case EIO_LSTAT:	629	case EIO_LSTAT:
484	case EIO_FSTAT:	630	case EIO_FSTAT:
485	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	631	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		632
486	PL_laststatval = req->result;	633	if (!(PL_laststatval = req->result))
		634	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
487	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	635	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		636
488	PUSHs (sv_result);	637	PUSHs (sv_result);
489	break;	638	break;
490		639
491	case EIO_READ:	640	case EIO_READ:
492	{	641	{
…		…
496	SvSETMAGIC (req->sv2);	645	SvSETMAGIC (req->sv2);
497	PUSHs (sv_result);	646	PUSHs (sv_result);
498	}	647	}
499	break;	648	break;
500		649
501	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	650	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502	if (req->result > 0)	651	if (req->result > 0)
503	SvIV_set (sv_result, 0);	652	SvIV_set (sv_result, 0);
504	/* FALLTHROUGH */	653	/* FALLTHROUGH */
505		654
506	default:	655	default:
…		…
526	}	675	}
527		676
528	return !!SvTRUE (ERRSV);	677	return !!SvTRUE (ERRSV);
529	}	678	}
530		679
		680	static void
531	static void req_destroy (aio_req req)	681	req_destroy (aio_req req)
532	{	682	{
533	if (req->self)	683	if (req->self)
534	{	684	{
535	sv_unmagic (req->self, PERL_MAGIC_ext);	685	sv_unmagic (req->self, PERL_MAGIC_ext);
536	SvREFCNT_dec (req->self);	686	SvREFCNT_dec (req->self);
537	}	687	}
538		688
539	SvREFCNT_dec (req->sv1);	689	SvREFCNT_dec (req->sv1);
540	SvREFCNT_dec (req->sv2);	690	SvREFCNT_dec (req->sv2);
		691	SvREFCNT_dec (req->sv3);
		692	SvREFCNT_dec (req->sv4);
541	SvREFCNT_dec (req->callback);	693	SvREFCNT_dec (req->callback);
542		694
543	Safefree (req);	695	free (req);
544	}	696	}
545		697
		698	static void
546	static void req_cancel_subs (aio_req grp)	699	req_cancel_subs (aio_req grp)
547	{	700	{
548	aio_req sub;
549
550	if (grp->type != EIO_GROUP)	701	if (grp->type != EIO_GROUP)
551	return;	702	return;
552		703
553	SvREFCNT_dec (grp->sv2);	704	SvREFCNT_dec (grp->sv2);
554	grp->sv2 = 0;	705	grp->sv2 = 0;
555		706
556	eio_grp_cancel (grp);	707	eio_grp_cancel (grp);
557	}	708	}
558		709
559	static void	710	static void ecb_cold
560	create_respipe (void)	711	create_respipe (void)
561	{	712	{
562	if (s_epipe_renew (&respipe))	713	if (s_epipe_renew (&respipe))
563	croak ("IO::AIO: unable to initialize result pipe");	714	croak ("IO::AIO: unable to initialize result pipe");
564	}	715	}
565		716
566	static void poll_wait (void)	717	static void
		718	poll_wait (void)
567	{	719	{
568	while (eio_nreqs ())	720	while (eio_nreqs ())
569	{	721	{
570	int size;	722	int size;
571		723
…		…
580		732
581	s_epipe_wait (&respipe);	733	s_epipe_wait (&respipe);
582	}	734	}
583	}	735	}
584		736
585	static int poll_cb (void)	737	static int
		738	poll_cb (void)
586	{	739	{
587	for (;;)	740	for (;;)
588	{	741	{
589	int res = eio_poll ();	742	int res = eio_poll ();
590		743
…		…
596		749
597	poll_wait ();	750	poll_wait ();
598	}	751	}
599	}	752	}
600		753
601	static void atfork_child (void)	754	static void ecb_cold
		755	reinit (void)
602	{	756	{
603	create_respipe ();	757	create_respipe ();
		758
		759	if (eio_init (want_poll, done_poll) < 0)
		760	croak ("IO::AIO: unable to initialise eio library");
604	}	761	}
605		762
606	/*****************************************************************************/	763	/*****************************************************************************/
607		764
608	#if !_POSIX_MAPPED_FILES	765	#if !_POSIX_MAPPED_FILES
609	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	766	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610	# define munmap(addr,length) (errno = ENOSYS, -1)	767	# define munmap(addr,length) (errno = ENOSYS, -1)
611	#endif	768	#endif
612		769
		770	#if !_POSIX_MEMORY_PROTECTION
		771	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		772	# define PROT_NONE 0
		773	# define PROT_WRITE 0
		774	# define MAP_PRIVATE 0
		775	# define MAP_SHARED 0
		776	# define MAP_FIXED 0
		777	#endif
		778
613	#define MMAP_MAGIC PERL_MAGIC_ext	779	#define MMAP_MAGIC PERL_MAGIC_ext
614		780
615	static int	781	static int ecb_cold
616	mmap_free (pTHX_ SV *sv, MAGIC *mg)	782	mmap_free (pTHX_ SV *sv, MAGIC *mg)
617	{	783	{
618	int old_errno = errno;	784	int old_errno = errno;
619	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	785	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620	errno = old_errno;	786	errno = old_errno;
621		787
622	mg->mg_obj = 0; /* just in case */	788	mg->mg_obj = 0; /* just in case */
623		789
624	SvREADONLY_off (sv);	790	SvREADONLY_off (sv);
		791
		792	if (SvPVX (sv) != mg->mg_ptr)
		793	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		794
625	SvCUR_set (sv, 0);	795	SvCUR_set (sv, 0);
626	SvLEN_set (sv, 0);
627	SvPVX (sv) = 0;	796	SvPVX (sv) = 0;
628	SvOK_off (sv);	797	SvOK_off (sv);
629		798
630	return 0;	799	return 0;
631	}	800	}
…		…
641	{	810	{
642	SvGETMAGIC (cb_sv);	811	SvGETMAGIC (cb_sv);
643	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	812	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
644	}	813	}
645		814
		815	static aio_req ecb_noinline
		816	dreq (SV *callback)
		817	{
		818	SV *cb_cv;
		819	aio_req req;
		820	int req_pri = next_pri;
		821	next_pri = EIO_PRI_DEFAULT;
		822
		823	cb_cv = get_cb (callback);
		824
		825	req = calloc (sizeof (*req), 1);
		826	if (!req)
		827	croak ("out of memory during eio_req allocation");
		828
		829	req->callback = SvREFCNT_inc (cb_cv);
		830	req->pri = req_pri;
		831
		832	return req;
		833	}
		834
646	#define dREQ \	835	#define dREQ \
647	SV *cb_cv; \	836	aio_req req = dreq (callback); \
648	aio_req req; \
649	int req_pri = next_pri; \
650	next_pri = EIO_PRI_DEFAULT; \
651	\
652	cb_cv = get_cb (callback); \
653	\
654	Newz (0, req, 1, eio_req); \
655	if (!req) \
656	croak ("out of memory during eio_req allocation"); \
657	\
658	req->callback = SvREFCNT_inc (cb_cv); \
659	req->pri = req_pri
660		837
661	#define REQ_SEND \	838	#define REQ_SEND \
662	PUTBACK; \	839	PUTBACK; \
663	req_submit (req); \	840	req_submit (req); \
664	SPAGAIN; \	841	SPAGAIN; \
665	\	842	\
666	if (GIMME_V != G_VOID) \	843	if (GIMME_V != G_VOID) \
667	XPUSHs (req_sv (req, aio_req_stash));	844	XPUSHs (req_sv (req, aio_req_stash));
		845
		846	ecb_inline void
		847	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		848	{
		849	if (expect_false (SvROK (path)))
		850	{
		851	SV *rv = SvRV (path);
		852	SV *wdob;
		853
		854	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		855	{
		856	path = AvARRAY (rv)[1];
		857	wdob = AvARRAY (rv)[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	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		868	{
		869	*wd = (aio_wd)(long)SvIVX (rv);
		870	*wdsv = SvREFCNT_inc_NN (rv);
		871	*ptr = ".";
		872	return; /* path set to "." */
		873	}
		874	else
		875	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		876	}
		877
		878	*pathsv = newSVsv (path);
		879	*ptr = SvPVbyte_nolen (*pathsv);
		880	}
		881
		882	static void ecb_noinline
		883	req_set_path1 (aio_req req, SV *path)
		884	{
		885	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		886	}
		887
		888	static void ecb_noinline
		889	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		890	{
		891	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		892
		893	switch (SvTYPE (rv))
		894	{
		895	case SVt_PVIO:
		896	case SVt_PVLV:
		897	case SVt_PVGV:
		898	req->type = type_fh;
		899	req->sv1 = newSVsv (fh_or_path);
		900	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		901	break;
		902
		903	default:
		904	req->type = type_path;
		905	req_set_path1 (req, fh_or_path);
		906	break;
		907	}
		908	}
		909
		910	XS(boot_IO__AIO) ecb_cold;
668		911
669	MODULE = IO::AIO PACKAGE = IO::AIO	912	MODULE = IO::AIO PACKAGE = IO::AIO
670		913
671	PROTOTYPES: ENABLE	914	PROTOTYPES: ENABLE
672		915
…		…
686	const_iv (O_RDWR)	929	const_iv (O_RDWR)
687	const_iv (O_CREAT)	930	const_iv (O_CREAT)
688	const_iv (O_TRUNC)	931	const_iv (O_TRUNC)
689	const_iv (O_EXCL)	932	const_iv (O_EXCL)
690	const_iv (O_APPEND)	933	const_iv (O_APPEND)
691	#ifndef _WIN32	934
		935	const_iv (O_ASYNC)
		936	const_iv (O_DIRECT)
		937	const_iv (O_NOATIME)
		938
		939	const_iv (O_CLOEXEC)
		940	const_iv (O_NOCTTY)
		941	const_iv (O_NOFOLLOW)
		942	const_iv (O_NONBLOCK)
		943	const_iv (O_EXEC)
		944	const_iv (O_SEARCH)
		945	const_iv (O_DIRECTORY)
		946	const_iv (O_DSYNC)
		947	const_iv (O_RSYNC)
		948	const_iv (O_SYNC)
		949	const_iv (O_TTY_INIT)
		950
692	const_iv (S_IFIFO)	951	const_iv (S_IFIFO)
693	#endif	952	const_iv (S_IFCHR)
		953	const_iv (S_IFBLK)
		954	const_iv (S_IFLNK)
		955	const_iv (S_IFREG)
		956	const_iv (S_IFDIR)
		957	const_iv (S_IFWHT)
		958	const_iv (S_IFSOCK)
		959	const_iv (S_IFMT)
		960
694	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	961	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
695	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	962	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
696	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	963	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
697	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	964	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
698	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	965	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
699	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	966	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		967
		968	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		969	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		970	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		971	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		972	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
700		973
701	const_iv (ST_RDONLY)	974	const_iv (ST_RDONLY)
702	const_iv (ST_NOSUID)	975	const_iv (ST_NOSUID)
703	const_iv (ST_NODEV)	976	const_iv (ST_NODEV)
704	const_iv (ST_NOEXEC)	977	const_iv (ST_NOEXEC)
…		…
709	const_iv (ST_IMMUTABLE)	982	const_iv (ST_IMMUTABLE)
710	const_iv (ST_NOATIME)	983	const_iv (ST_NOATIME)
711	const_iv (ST_NODIRATIME)	984	const_iv (ST_NODIRATIME)
712	const_iv (ST_RELATIME)	985	const_iv (ST_RELATIME)
713		986
		987	const_iv (PROT_NONE)
714	const_iv (PROT_EXEC)	988	const_iv (PROT_EXEC)
715	const_iv (PROT_NONE)
716	const_iv (PROT_READ)	989	const_iv (PROT_READ)
717	const_iv (PROT_WRITE)	990	const_iv (PROT_WRITE)
718		991
719	/*const_iv (MAP_FIXED)*/	992	/*const_iv (MAP_FIXED)*/
720	const_iv (MAP_PRIVATE)	993	const_iv (MAP_PRIVATE)
…		…
726	const_iv (MAP_LOCKED)	999	const_iv (MAP_LOCKED)
727	const_iv (MAP_NORESERVE)	1000	const_iv (MAP_NORESERVE)
728	const_iv (MAP_POPULATE)	1001	const_iv (MAP_POPULATE)
729	const_iv (MAP_NONBLOCK)	1002	const_iv (MAP_NONBLOCK)
730		1003
731	const_iv (MCL_FUTURE)	1004	const_eio (MCL_FUTURE)
732	const_iv (MCL_CURRENT)	1005	const_eio (MCL_CURRENT)
733		1006
734	const_eio (MS_ASYNC)	1007	const_eio (MS_ASYNC)
735	const_eio (MS_INVALIDATE)	1008	const_eio (MS_INVALIDATE)
736	const_eio (MS_SYNC)	1009	const_eio (MS_SYNC)
737		1010
738	const_eio (MT_MODIFY)	1011	const_eio (MT_MODIFY)
739		1012
740	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1013	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
741	const_eio (SYNC_FILE_RANGE_WRITE)	1014	const_eio (SYNC_FILE_RANGE_WRITE)
742	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1015	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1016
		1017	const_eio (FALLOC_FL_KEEP_SIZE)
743		1018
744	const_eio (READDIR_DENTS)	1019	const_eio (READDIR_DENTS)
745	const_eio (READDIR_DIRS_FIRST)	1020	const_eio (READDIR_DIRS_FIRST)
746	const_eio (READDIR_STAT_ORDER)	1021	const_eio (READDIR_STAT_ORDER)
747	const_eio (READDIR_FOUND_UNKNOWN)	1022	const_eio (READDIR_FOUND_UNKNOWN)
…		…
758	};	1033	};
759		1034
760	aio_stash = gv_stashpv ("IO::AIO" , 1);	1035	aio_stash = gv_stashpv ("IO::AIO" , 1);
761	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1036	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
762	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1037	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1038	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
763		1039
764	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1040	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
765	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1041	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
766		1042
767	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1043	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
768		1044
769	create_respipe ();	1045	reinit ();
770
771	if (eio_init (want_poll, done_poll) < 0)
772	croak ("IO::AIO: unable to initialise eio library");
773
774	/* atfork child called in fifo order, so before eio's handler */
775	X_THREAD_ATFORK (0, 0, atfork_child);
776	}	1046	}
777		1047
778	void	1048	void
		1049	reinit ()
		1050	PROTOTYPE:
		1051
		1052	void
779	max_poll_reqs (int nreqs)	1053	max_poll_reqs (unsigned int nreqs)
780	PROTOTYPE: $	1054	PROTOTYPE: $
781	CODE:	1055	CODE:
782	eio_set_max_poll_reqs (nreqs);	1056	eio_set_max_poll_reqs (nreqs);
783		1057
784	void	1058	void
…		…
786	PROTOTYPE: $	1060	PROTOTYPE: $
787	CODE:	1061	CODE:
788	eio_set_max_poll_time (nseconds);	1062	eio_set_max_poll_time (nseconds);
789		1063
790	void	1064	void
791	min_parallel (int nthreads)	1065	min_parallel (unsigned int nthreads)
792	PROTOTYPE: $	1066	PROTOTYPE: $
793	CODE:	1067	CODE:
794	eio_set_min_parallel (nthreads);	1068	eio_set_min_parallel (nthreads);
795		1069
796	void	1070	void
797	max_parallel (int nthreads)	1071	max_parallel (unsigned int nthreads)
798	PROTOTYPE: $	1072	PROTOTYPE: $
799	CODE:	1073	CODE:
800	eio_set_max_parallel (nthreads);	1074	eio_set_max_parallel (nthreads);
801		1075
802	void	1076	void
803	max_idle (int nthreads)	1077	max_idle (unsigned int nthreads)
804	PROTOTYPE: $	1078	PROTOTYPE: $
805	CODE:	1079	CODE:
806	eio_set_max_idle (nthreads);	1080	eio_set_max_idle (nthreads);
807		1081
808	void	1082	void
		1083	idle_timeout (unsigned int seconds)
		1084	PROTOTYPE: $
		1085	CODE:
		1086	eio_set_idle_timeout (seconds);
		1087
		1088	void
809	max_outstanding (int maxreqs)	1089	max_outstanding (unsigned int maxreqs)
810	PROTOTYPE: $	1090	PROTOTYPE: $
811	CODE:	1091	CODE:
812	max_outstanding = maxreqs;	1092	max_outstanding = maxreqs;
813		1093
814	void	1094	void
		1095	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1096	PPCODE:
		1097	{
		1098	dREQ;
		1099
		1100	req->type = EIO_WD_OPEN;
		1101	req_set_path1 (req, pathname);
		1102
		1103	REQ_SEND;
		1104	}
		1105
		1106	void
815	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1107	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
816	PROTOTYPE: $$$;$
817	PPCODE:	1108	PPCODE:
818	{	1109	{
819	dREQ;	1110	dREQ;
820		1111
821	req->type = EIO_OPEN;	1112	req->type = EIO_OPEN;
822	req->sv1 = newSVsv (pathname);	1113	req_set_path1 (req, pathname);
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	req->int1 = flags;	1114	req->int1 = flags;
825	req->int2 = mode;	1115	req->int2 = mode;
826		1116
827	REQ_SEND;	1117	REQ_SEND;
828	}	1118	}
829		1119
830	void	1120	void
831	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1121	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
832	PROTOTYPE: $;$
833	ALIAS:	1122	ALIAS:
834	aio_fsync = EIO_FSYNC	1123	aio_fsync = EIO_FSYNC
835	aio_fdatasync = EIO_FDATASYNC	1124	aio_fdatasync = EIO_FDATASYNC
		1125	aio_syncfs = EIO_SYNCFS
836	PPCODE:	1126	PPCODE:
837	{	1127	{
838	int fd = s_fileno_croak (fh, 0);	1128	int fd = s_fileno_croak (fh, 0);
839	dREQ;	1129	dREQ;
840		1130
…		…
845	REQ_SEND (req);	1135	REQ_SEND (req);
846	}	1136	}
847		1137
848	void	1138	void
849	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1139	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
850	PROTOTYPE: $$$$;$
851	PPCODE:	1140	PPCODE:
852	{	1141	{
853	int fd = s_fileno_croak (fh, 0);	1142	int fd = s_fileno_croak (fh, 0);
854	dREQ;	1143	dREQ;
855		1144
…		…
862		1151
863	REQ_SEND (req);	1152	REQ_SEND (req);
864	}	1153	}
865		1154
866	void	1155	void
867	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1156	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
868	PROTOTYPE: $;$
869	PPCODE:	1157	PPCODE:
870	{	1158	{
871	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872	int fd = s_fileno_croak (fh, 0);	1159	int fd = s_fileno_croak (fh, 0);
873	dREQ;	1160	dREQ;
874		1161
875	if (close_pipe < 0)	1162	req->type = EIO_FALLOCATE;
		1163	req->sv1 = newSVsv (fh);
		1164	req->int1 = fd;
		1165	req->int2 = mode;
		1166	req->offs = offset;
		1167	req->size = len;
		1168
		1169	REQ_SEND (req);
		1170	}
		1171
		1172	void
		1173	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1174	PPCODE:
		1175	{
		1176	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1177	int fd = s_fileno_croak (fh, 0);
		1178	dREQ;
		1179
		1180	if (expect_false (close_fd < 0))
876	{	1181	{
877	int pipefd [2];	1182	int pipefd [2];
878		1183
		1184	if (
		1185	#ifdef _WIN32
		1186	_pipe (pipefd, 1, _O_BINARY) < 0
		1187	#else
879	if (pipe (pipefd) < 0	1188	pipe (pipefd) < 0
880	|| close (pipefd [1]) < 0
881	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1189	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1190	#endif
		1191	|| close (pipefd [1]) < 0
		1192	)
882	abort (); /*D*/	1193	abort (); /*D*/
883		1194
884	close_pipe = pipefd [0];	1195	close_fd = pipefd [0];
885	}	1196	}
886		1197
887	req->type = EIO_DUP2;	1198	req->type = EIO_DUP2;
888	req->int1 = close_pipe;	1199	req->int1 = close_fd;
889	req->sv2 = newSVsv (fh);	1200	req->sv2 = newSVsv (fh);
890	req->int2 = fd;	1201	req->int2 = fd;
891		1202
892	REQ_SEND (req);	1203	REQ_SEND (req);
893	}	1204	}
…		…
895	void	1206	void
896	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1207	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
897	ALIAS:	1208	ALIAS:
898	aio_read = EIO_READ	1209	aio_read = EIO_READ
899	aio_write = EIO_WRITE	1210	aio_write = EIO_WRITE
900	PROTOTYPE: $$$$$;$
901	PPCODE:	1211	PPCODE:
902	{	1212	{
903	STRLEN svlen;	1213	STRLEN svlen;
904	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1214	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
905	char *svptr = SvPVbyte (data, svlen);	1215	char *svptr = SvPVbyte (data, svlen);
…		…
945	REQ_SEND;	1255	REQ_SEND;
946	}	1256	}
947	}	1257	}
948		1258
949	void	1259	void
950	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1260	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
951	PROTOTYPE: $$;$	1261	ALIAS:
		1262	aio_readlink = EIO_READLINK
		1263	aio_realpath = EIO_REALPATH
952	PPCODE:	1264	PPCODE:
953	{	1265	{
954	SV *data;
955	dREQ;	1266	dREQ;
956		1267
957	req->type = EIO_READLINK;	1268	req->type = ix;
958	req->sv1 = newSVsv (path);	1269	req_set_path1 (req, pathname);
959	req->ptr1 = SvPVbyte_nolen (req->sv1);
960		1270
961	REQ_SEND;	1271	REQ_SEND;
962	}	1272	}
963		1273
964	void	1274	void
965	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1275	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
966	PROTOTYPE: $$$$;$
967	PPCODE:	1276	PPCODE:
968	{	1277	{
969	int ifd = s_fileno_croak (in_fh , 0);	1278	int ifd = s_fileno_croak (in_fh , 0);
970	int ofd = s_fileno_croak (out_fh, 1);	1279	int ofd = s_fileno_croak (out_fh, 1);
971	dREQ;	1280	dREQ;
…		…
981	REQ_SEND;	1290	REQ_SEND;
982	}	1291	}
983		1292
984	void	1293	void
985	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1294	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
986	PROTOTYPE: $$$;$
987	PPCODE:	1295	PPCODE:
988	{	1296	{
989	int fd = s_fileno_croak (fh, 0);	1297	int fd = s_fileno_croak (fh, 0);
990	dREQ;	1298	dREQ;
991		1299
…		…
1006	aio_statvfs = EIO_STATVFS	1314	aio_statvfs = EIO_STATVFS
1007	PPCODE:	1315	PPCODE:
1008	{	1316	{
1009	dREQ;	1317	dREQ;
1010		1318
1011	req->sv1 = newSVsv (fh_or_path);	1319	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1012
1013	if (SvPOK (req->sv1))
1014	{
1015	req->type = ix;
1016	req->ptr1 = SvPVbyte_nolen (req->sv1);
1017	}
1018	else
1019	{
1020	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1021	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1022	}
1023		1320
1024	REQ_SEND;	1321	REQ_SEND;
1025	}	1322	}
		1323
		1324	UV
		1325	major (UV dev)
		1326	ALIAS:
		1327	minor = 1
		1328	CODE:
		1329	RETVAL = ix ? major (dev) : minor (dev);
		1330	OUTPUT:
		1331	RETVAL
		1332
		1333	UV
		1334	makedev (UV maj, UV min)
		1335	CODE:
		1336	RETVAL = makedev (maj, min);
		1337	OUTPUT:
		1338	RETVAL
1026		1339
1027	void	1340	void
1028	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1341	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1029	PPCODE:	1342	PPCODE:
1030	{	1343	{
1031	dREQ;	1344	dREQ;
1032		1345
1033	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1346	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1034	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1347	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1035	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1036
1037	if (SvPOK (req->sv1))
1038	{
1039	req->type = EIO_UTIME;
1040	req->ptr1 = SvPVbyte_nolen (req->sv1);
1041	}
1042	else
1043	{
1044	req->type = EIO_FUTIME;
1045	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1046	}
1047		1349
1048	REQ_SEND;	1350	REQ_SEND;
1049	}	1351	}
1050		1352
1051	void	1353	void
1052	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1354	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1053	PPCODE:	1355	PPCODE:
1054	{	1356	{
1055	dREQ;	1357	dREQ;
1056		1358
1057	req->sv1 = newSVsv (fh_or_path);
1058	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1359	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1059		1360	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1060	if (SvPOK (req->sv1))
1061	{
1062	req->type = EIO_TRUNCATE;
1063	req->ptr1 = SvPVbyte_nolen (req->sv1);
1064	}
1065	else
1066	{
1067	req->type = EIO_FTRUNCATE;
1068	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1069	}
1070		1361
1071	REQ_SEND;	1362	REQ_SEND;
1072	}	1363	}
1073		1364
1074	void	1365	void
1075	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1366	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1076	ALIAS:
1077	aio_chmod = EIO_CHMOD
1078	aio_mkdir = EIO_MKDIR
1079	PPCODE:	1367	PPCODE:
1080	{	1368	{
1081	dREQ;	1369	dREQ;
1082		1370
1083	req->int2 = mode;	1371	req->int2 = mode;
1084	req->sv1 = newSVsv (fh_or_path);	1372	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1085
1086	if (SvPOK (req->sv1))
1087	{
1088	req->type = ix;
1089	req->ptr1 = SvPVbyte_nolen (req->sv1);
1090	}
1091	else
1092	{
1093	req->type = EIO_FCHMOD;
1094	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1095	}
1096		1373
1097	REQ_SEND;	1374	REQ_SEND;
1098	}	1375	}
1099		1376
1100	void	1377	void
…		…
1103	{	1380	{
1104	dREQ;	1381	dREQ;
1105		1382
1106	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1383	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1107	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1384	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1108	req->sv1 = newSVsv (fh_or_path);	1385	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1109
1110	if (SvPOK (req->sv1))
1111	{
1112	req->type = EIO_CHOWN;
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114	}
1115	else
1116	{
1117	req->type = EIO_FCHOWN;
1118	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1119	}
1120		1386
1121	REQ_SEND;	1387	REQ_SEND;
1122	}	1388	}
1123		1389
1124	void	1390	void
…		…
1126	PPCODE:	1392	PPCODE:
1127	{	1393	{
1128	dREQ;	1394	dREQ;
1129		1395
1130	req->type = EIO_READDIR;	1396	req->type = EIO_READDIR;
1131	req->sv1 = newSVsv (pathname);
1132	req->ptr1 = SvPVbyte_nolen (req->sv1);
1133	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1397	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1134		1398
1135	if (flags & EIO_READDIR_DENTS)	1399	if (flags & EIO_READDIR_DENTS)
1136	req->int1 |= EIO_READDIR_CUSTOM2;	1400	req->int1 |= EIO_READDIR_CUSTOM2;
1137		1401
		1402	req_set_path1 (req, pathname);
		1403
1138	REQ_SEND;	1404	REQ_SEND;
		1405	}
		1406
		1407	void
		1408	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1409	PPCODE:
		1410	{
		1411	dREQ;
		1412
		1413	req->type = EIO_MKDIR;
		1414	req->int2 = mode;
		1415	req_set_path1 (req, pathname);
		1416
		1417	REQ_SEND;
1139	}	1418	}
1140		1419
1141	void	1420	void
1142	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1421	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1143	ALIAS:	1422	ALIAS:
…		…
1147	PPCODE:	1426	PPCODE:
1148	{	1427	{
1149	dREQ;	1428	dREQ;
1150		1429
1151	req->type = ix;	1430	req->type = ix;
1152	req->sv1 = newSVsv (pathname);	1431	req_set_path1 (req, pathname);
1153	req->ptr1 = SvPVbyte_nolen (req->sv1);
1154		1432
1155	REQ_SEND;	1433	REQ_SEND;
1156	}	1434	}
1157		1435
1158	void	1436	void
…		…
1162	aio_symlink = EIO_SYMLINK	1440	aio_symlink = EIO_SYMLINK
1163	aio_rename = EIO_RENAME	1441	aio_rename = EIO_RENAME
1164	PPCODE:	1442	PPCODE:
1165	{	1443	{
1166	dREQ;	1444	dREQ;
		1445	eio_wd wd2 = 0;
1167		1446
1168	req->type = ix;	1447	req->type = ix;
1169	req->sv1 = newSVsv (oldpath);	1448	req_set_path1 (req, oldpath);
1170	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1171	req->sv2 = newSVsv (newpath);	1450	req->int3 = (long)wd2;
1172	req->ptr2 = SvPVbyte_nolen (req->sv2);
1173		1451
1174	REQ_SEND;	1452	REQ_SEND;
1175	}	1453	}
1176		1454
1177	void	1455	void
…		…
1179	PPCODE:	1457	PPCODE:
1180	{	1458	{
1181	dREQ;	1459	dREQ;
1182		1460
1183	req->type = EIO_MKNOD;	1461	req->type = EIO_MKNOD;
1184	req->sv1 = newSVsv (pathname);
1185	req->ptr1 = SvPVbyte_nolen (req->sv1);
1186	req->int2 = (mode_t)mode;	1462	req->int2 = (mode_t)mode;
1187	req->offs = dev;	1463	req->offs = dev;
		1464	req_set_path1 (req, pathname);
1188		1465
1189	REQ_SEND;	1466	REQ_SEND;
1190	}	1467	}
1191		1468
1192	void	1469	void
1193	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1470	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1194	ALIAS:	1471	ALIAS:
1195	aio_mtouch = EIO_MTOUCH	1472	aio_mtouch = EIO_MTOUCH
1196	aio_msync = EIO_MSYNC	1473	aio_msync = EIO_MSYNC
1197	PROTOTYPE: $$$$;$
1198	PPCODE:	1474	PPCODE:
1199	{	1475	{
1200	STRLEN svlen;	1476	STRLEN svlen;
		1477	char *svptr = SvPVbyte (data, svlen);
1201	UV len = SvUV (length);	1478	UV len = SvUV (length);
1202	char *svptr = SvPVbyte (data, svlen);
1203		1479
1204	if (offset < 0)	1480	if (offset < 0)
1205	offset += svlen;	1481	offset += svlen;
1206		1482
1207	if (offset < 0 || offset > svlen)	1483	if (offset < 0 || offset > svlen)
…		…
1212		1488
1213	{	1489	{
1214	dREQ;	1490	dREQ;
1215		1491
1216	req->type = ix;	1492	req->type = ix;
1217	req->size = len;
1218	req->sv2 = SvREFCNT_inc (data);	1493	req->sv2 = SvREFCNT_inc (data);
1219	req->ptr2 = (char *)svptr + offset;	1494	req->ptr2 = (char *)svptr + offset;
		1495	req->size = len;
1220	req->int1 = flags;	1496	req->int1 = flags;
1221		1497
1222	REQ_SEND;	1498	REQ_SEND;
1223	}	1499	}
1224	}	1500	}
1225		1501
1226	void	1502	void
		1503	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1504	PPCODE:
		1505	{
		1506	STRLEN svlen;
		1507	char *svptr = SvPVbyte (data, svlen);
		1508	UV len = SvUV (length);
		1509
		1510	if (offset < 0)
		1511	offset += svlen;
		1512
		1513	if (offset < 0 || offset > svlen)
		1514	croak ("offset outside of scalar");
		1515
		1516	if (!SvOK (length) || len + offset > svlen)
		1517	len = svlen - offset;
		1518
		1519	{
		1520	dREQ;
		1521
		1522	req->type = EIO_MLOCK;
		1523	req->sv2 = SvREFCNT_inc (data);
		1524	req->ptr2 = (char *)svptr + offset;
		1525	req->size = len;
		1526
		1527	REQ_SEND;
		1528	}
		1529	}
		1530
		1531	void
		1532	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1533	PPCODE:
		1534	{
		1535	dREQ;
		1536
		1537	req->type = EIO_MLOCKALL;
		1538	req->int1 = flags;
		1539
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
1227	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
1228	PPCODE:	1545	PPCODE:
1229	{	1546	{
1230	dREQ;	1547	dREQ;
1231		1548
…		…
1235	REQ_SEND;	1552	REQ_SEND;
1236	}	1553	}
1237		1554
1238	void	1555	void
1239	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
1240	PROTOTYPE: ;$
1241	PPCODE:	1557	PPCODE:
1242	{	1558	{
1243	dREQ;	1559	dREQ;
1244		1560
1245	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
…		…
1262	REQ_SEND;	1578	REQ_SEND;
1263	}	1579	}
1264		1580
1265	int	1581	int
1266	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
1267	PROTOTYPE: ;$
1268	CODE:	1583	CODE:
1269	RETVAL = next_pri;	1584	RETVAL = next_pri;
1270	if (items > 0)	1585	if (items > 0)
1271	{	1586	{
1272	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1284	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1285	next_pri = nice;	1600	next_pri = nice;
1286		1601
1287	void	1602	void
1288	flush ()	1603	flush ()
1289	PROTOTYPE:
1290	CODE:	1604	CODE:
1291	while (eio_nreqs ())	1605	while (eio_nreqs ())
1292	{	1606	{
1293	poll_wait ();	1607	poll_wait ();
1294	poll_cb ();	1608	poll_cb ();
1295	}	1609	}
1296		1610
1297	int	1611	int
1298	poll()	1612	poll ()
1299	PROTOTYPE:
1300	CODE:	1613	CODE:
1301	poll_wait ();	1614	poll_wait ();
1302	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
1303	OUTPUT:	1616	OUTPUT:
1304	RETVAL	1617	RETVAL
1305		1618
1306	int	1619	int
1307	poll_fileno()	1620	poll_fileno ()
1308	PROTOTYPE:
1309	CODE:	1621	CODE:
1310	RETVAL = s_epipe_fd (&respipe);	1622	RETVAL = s_epipe_fd (&respipe);
1311	OUTPUT:	1623	OUTPUT:
1312	RETVAL	1624	RETVAL
1313		1625
1314	int	1626	int
1315	poll_cb(...)	1627	poll_cb (...)
1316	PROTOTYPE:	1628	PROTOTYPE:
1317	CODE:	1629	CODE:
1318	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
1319	OUTPUT:	1631	OUTPUT:
1320	RETVAL	1632	RETVAL
1321		1633
1322	void	1634	void
1323	poll_wait()	1635	poll_wait ()
1324	PROTOTYPE:
1325	CODE:	1636	CODE:
1326	poll_wait ();	1637	poll_wait ();
1327		1638
1328	int	1639	int
1329	nreqs()	1640	nreqs ()
1330	PROTOTYPE:
1331	CODE:	1641	CODE:
1332	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
1333	OUTPUT:	1643	OUTPUT:
1334	RETVAL	1644	RETVAL
1335		1645
1336	int	1646	int
1337	nready()	1647	nready ()
1338	PROTOTYPE:
1339	CODE:	1648	CODE:
1340	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1341	OUTPUT:	1650	OUTPUT:
1342	RETVAL	1651	RETVAL
1343		1652
1344	int	1653	int
1345	npending()	1654	npending ()
1346	PROTOTYPE:
1347	CODE:	1655	CODE:
1348	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1349	OUTPUT:	1657	OUTPUT:
1350	RETVAL	1658	RETVAL
1351		1659
1352	int	1660	int
1353	nthreads()	1661	nthreads ()
1354	PROTOTYPE:
1355	CODE:	1662	CODE:
1356	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1357	OUTPUT:	1664	OUTPUT:
1358	RETVAL	1665	RETVAL
1359		1666
1360	int	1667	int
1361	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1668	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1362	PROTOTYPE: $$$$
1363	CODE:	1669	CODE:
1364	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1365	RETVAL = posix_fadvise (fh, offset, length, advice);	1670	RETVAL = posix_fadvise (fh, offset, length, advice);
1366	#else
1367	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1368	#endif
1369	OUTPUT:	1671	OUTPUT:
1370	RETVAL	1672	RETVAL
1371		1673
1372	ssize_t	1674	IV
1373	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1374	PROTOTYPE: $$$$
1375	CODE:	1676	CODE:
1376	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1377	OUTPUT:	1678	OUTPUT:
1378	RETVAL	1679	RETVAL
1379		1680
1380	void	1681	void
1381	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382	PROTOTYPE: $$$$$;$
1383	PPCODE:	1683	PPCODE:
1384	sv_unmagic (scalar, MMAP_MAGIC);	1684	sv_unmagic (scalar, MMAP_MAGIC);
1385	{	1685	{
1386	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388	if (addr == (void *)-1)	1688	if (addr == (void *)-1)
1389	XSRETURN_NO;	1689	XSRETURN_NO;
1390		1690
		1691	sv_force_normal (scalar);
		1692
1391	/* we store the length in mg_obj, as namlen is I32 :/ */	1693	/* we store the length in mg_obj, as namlen is I32 :/ */
1392	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393	->mg_obj = (SV *)length;	1695	->mg_obj = (SV *)length;
1394		1696
1395	SvUPGRADE (scalar, SVt_PV); /* nop... */	1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
1396	if (!(prot & PROT_WRITE))	1699	if (!(prot & PROT_WRITE))
1397	SvREADONLY_on (scalar);	1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
1398		1704
1399	SvPVX (scalar) = (char *)addr;	1705	SvPVX (scalar) = (char *)addr;
1400	SvCUR_set (scalar, length);	1706	SvCUR_set (scalar, length);
1401	SvLEN_set (scalar, 0);	1707	SvLEN_set (scalar, 0);
1402	SvPOK_only (scalar);	1708	SvPOK_only (scalar);
…		…
1404	XSRETURN_YES;	1710	XSRETURN_YES;
1405	}	1711	}
1406		1712
1407	void	1713	void
1408	munmap (SV *scalar)	1714	munmap (SV *scalar)
1409	PROTOTYPE: $
1410	CODE:	1715	CODE:
1411	sv_unmagic (scalar, MMAP_MAGIC);	1716	sv_unmagic (scalar, MMAP_MAGIC);
1412		1717
1413	int	1718	int
1414	mlockall (int flags)	1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1415	PROTOTYPE: $	1720	ALIAS:
		1721	mprotect = 1
1416	CODE:	1722	CODE:
		1723	{
		1724	STRLEN svlen;
		1725	void *addr = SvPVbyte (scalar, svlen);
		1726	size_t len = SvUV (length);
		1727
		1728	if (offset < 0)
		1729	offset += svlen;
		1730
		1731	if (offset < 0 || offset > svlen)
		1732	croak ("offset outside of scalar");
		1733
		1734	if (!SvOK (length) || len + offset > svlen)
		1735	len = svlen - offset;
		1736
		1737	addr = (void *)(((intptr_t)addr) + offset);
		1738	eio_page_align (&addr, &len);
		1739
		1740	switch (ix)
		1741	{
		1742	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1743	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1744	}
		1745	}
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	int
		1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1751	CODE:
		1752	{
		1753	STRLEN svlen;
		1754	void *addr = SvPVbyte (scalar, svlen);
		1755	size_t len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	addr = (void *)(((intptr_t)addr) + offset);
		1767	eio_page_align (&addr, &len);
1417	#if _POSIX_MEMLOCK	1768	#if _POSIX_MEMLOCK_RANGE
1418	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1769	RETVAL = munlock (addr, len);
1419	extern int mallopt (int, int);
1420	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1421	#endif
1422	mlockall (flags);
1423	#else	1770	#else
1424	RETVAL = -1;	1771	RETVAL = ((errno = ENOSYS), -1);
1425	errno = ENOSYS;
1426	#endif	1772	#endif
		1773	}
1427	OUTPUT:	1774	OUTPUT:
1428	RETVAL	1775	RETVAL
1429		1776
1430	int	1777	int
1431	munlockall ()	1778	munlockall ()
1432	PROTOTYPE:
1433	CODE:	1779	CODE:
1434	#if _POSIX_MEMLOCK	1780	#if _POSIX_MEMLOCK
1435	munlockall ();	1781	munlockall ();
1436	#else	1782	#else
1437	RETVAL = -1;	1783	RETVAL = -1;
…		…
1445	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1446	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1447		1793
1448	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1449		1795
		1796	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1797
		1798	BOOT:
		1799	{
		1800	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1801	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1802	}
		1803
		1804	void
		1805	DESTROY (SV *self)
		1806	CODE:
		1807	{
		1808	aio_wd wd = SvAIO_WD (self);
		1809	#if HAVE_AT
		1810	{
		1811	SV *callback = &PL_sv_undef;
		1812	dREQ; /* clobbers next_pri :/ */
		1813	next_pri = req->pri; /* restore next_pri */
		1814	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1815	req->type = EIO_WD_CLOSE;
		1816	req->wd = wd;
		1817	REQ_SEND;
		1818	}
		1819	#else
		1820	eio_wd_close_sync (wd);
		1821	#endif
		1822	}
		1823
1450	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1451		1825
1452	void	1826	void
1453	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1454	CODE:	1828	CODE:

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