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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.158 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.205 by root, Sat Oct 1 10:53:47 2011 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
20	/* perl namespace pollution */	24	/* perl namespace pollution */
21	#undef VERSION	25	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		26
72	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	29	#undef readdir
75	#undef opendir	30	#undef opendir
76	#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
77		76
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
79		78
80	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
103		102
104	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
107		106
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		108
110	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
111	SV *callback; \	110	SV *callback; \
112	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
113	STRLEN stroffset; \	113	STRLEN stroffset; \
114	SV *self;	114	SV *self;
115		115
116	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
117		117
		118	#include "libeio/config.h"
118	#include "libeio/eio.h"	119	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		120
145	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
149		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
		173
		174	#ifndef POSIX_FADV_NORMAL
		175	# define POSIX_FADV_NORMAL 0
		176	#endif
		177	#ifndef POSIX_FADV_SEQUENTIAL
		178	# define POSIX_FADV_SEQUENTIAL 0
		179	#endif
		180	#ifndef POSIX_FADV_RANDOM
		181	# define POSIX_FADV_RANDOM 0
		182	#endif
		183	#ifndef POSIX_FADV_NOREUSE
		184	# define POSIX_FADV_NOREUSE 0
		185	#endif
		186	#ifndef POSIX_FADV_WILLNEED
		187	# define POSIX_FADV_WILLNEED 0
		188	#endif
		189	#ifndef POSIX_FADV_DONTNEED
		190	# define POSIX_FADV_DONTNEED 0
		191	#endif
		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
		236	#ifndef ST_NODEV
		237	# define ST_NODEV 0
		238	#endif
		239	#ifndef ST_NOEXEC
		240	# define ST_NOEXEC 0
		241	#endif
		242	#ifndef ST_SYNCHRONOUS
		243	# define ST_SYNCHRONOUS 0
		244	#endif
		245	#ifndef ST_MANDLOCK
		246	# define ST_MANDLOCK 0
		247	#endif
		248	#ifndef ST_WRITE
		249	# define ST_WRITE 0
		250	#endif
		251	#ifndef ST_APPEND
		252	# define ST_APPEND 0
		253	#endif
		254	#ifndef ST_IMMUTABLE
		255	# define ST_IMMUTABLE 0
		256	#endif
		257	#ifndef ST_NOATIME
		258	# define ST_NOATIME 0
		259	#endif
		260	#ifndef ST_NODIRATIME
		261	# define ST_NODIRATIME 0
		262	#endif
		263	#ifndef ST_RELATIME
		264	# define ST_RELATIME 0
		265	#endif
		266
		267	#ifndef S_IFIFO
		268	# define S_IFIFO 0
		269	#endif
		270	#ifndef S_IFCHR
		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
		290	#endif
		291
		292	#ifndef MAP_ANONYMOUS
		293	# ifdef MAP_ANON
		294	# define MAP_ANONYMOUS MAP_ANON
		295	# else
		296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		297	# endif
		298	#endif
		299	#ifndef MAP_HUGETLB
		300	# define MAP_HUGETLB 0
		301	#endif
		302	#ifndef MAP_LOCKED
		303	# define MAP_LOCKED 0
		304	#endif
		305	#ifndef MAP_NORESERVE
		306	# define MAP_NORESERVE 0
		307	#endif
		308	#ifndef MAP_POPULATE
		309	# define MAP_POPULATE 0
		310	#endif
		311	#ifndef MAP_NONBLOCK
		312	# define MAP_NONBLOCK 0
		313	#endif
		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
		325	#ifndef PAGESIZE
		326	# define PAGESIZE sysconf (_SC_PAGESIZE)
		327	#endif
		328
150	enum {	329	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	331	};
153		332
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
		335	typedef eio_wd aio_wd;
158		336
159	static SV *on_next_submit;	337	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	338	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	339	static int max_outstanding;
162		340
163	static s_epipe respipe;	341	static s_epipe respipe;
164		342
165	static void req_destroy (aio_req req);	343	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	344	static void req_cancel (aio_req req);
167		345
168	static void want_poll (void)	346	static void
		347	want_poll (void)
169	{	348	{
170	/* write a dummy byte to the pipe so fh becomes ready */	349	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	350	s_epipe_signal (&respipe);
172	}	351	}
173		352
174	static void done_poll (void)	353	static void
		354	done_poll (void)
175	{	355	{
176	/* read any signals sent by the worker threads */	356	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	357	s_epipe_drain (&respipe);
178	}	358	}
179		359
180	/* must be called at most once */	360	/* must be called at most once */
		361	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	362	req_sv (aio_req req, HV *stash)
182	{	363	{
183	if (!req->self)	364	if (!req->self)
184	{	365	{
185	req->self = (SV *)newHV ();	366	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	367	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	368	}
188		369
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	370	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	371	}
191		372
192	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)
193	{	381	{
194	MAGIC *mg;	382	MAGIC *mg;
195		383
196	if (!SvROK (sv)	384	if (!SvROK (sv)
		385	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	386	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	387	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	388	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	389	croak ("object of class IO::AIO::REQ expected");
201		390
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	391	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		392
204	return mg ? (aio_req)mg->mg_ptr : 0;	393	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	394	}
206		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
207	static void aio_grp_feed (aio_req grp)	408	aio_grp_feed (aio_req grp)
208	{	409	{
209	if (grp->sv2 && SvOK (grp->sv2))	410	if (grp->sv2 && SvOK (grp->sv2))
210	{	411	{
211	dSP;	412	dSP;
212		413
…		…
220	FREETMPS;	421	FREETMPS;
221	LEAVE;	422	LEAVE;
222	}	423	}
223	}	424	}
224		425
		426	static void
225	static void req_submit (eio_req *req)	427	req_submit (eio_req *req)
226	{	428	{
227	eio_submit (req);	429	eio_submit (req);
228		430
229	if (expect_false (on_next_submit))	431	if (expect_false (on_next_submit))
230	{	432	{
…		…
237	PUTBACK;	439	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	440	call_sv (cb, G_DISCARD | G_EVAL);
239	}	441	}
240	}	442	}
241		443
		444	static int
242	static int req_invoke (eio_req *req)	445	req_invoke (eio_req *req)
243	{	446	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	447	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	448	SvREADONLY_off (req->sv2);
248		449
249	if (!EIO_CANCELLED (req) && req->callback)	450	if (!EIO_CANCELLED (req) && req->callback)
250	{	451	{
		452	dSP;
		453	static SV *sv_result_cache; /* caches the result integer SV */
		454	SV *sv_result;
		455
251	ENTER;	456	ENTER;
252	SAVETMPS;	457	SAVETMPS;
253	PUSHMARK (SP);	458	PUSHMARK (SP);
254	EXTEND (SP, 1);	459	EXTEND (SP, 1);
255		460
		461	/* do not recreate the result IV from scratch each time */
		462	if (expect_true (sv_result_cache))
		463	{
		464	sv_result = sv_result_cache; sv_result_cache = 0;
		465	SvIV_set (sv_result, req->result);
		466	SvIOK_only (sv_result);
		467	}
		468	else
		469	{
		470	sv_result = newSViv (req->result);
		471	SvREADONLY_on (sv_result);
		472	}
		473
256	switch (req->type)	474	switch (req->type)
257	{	475	{
		476	case EIO_WD_OPEN:
		477	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		478	break;
		479
258	case EIO_READDIR:	480	case EIO_READDIR:
259	{	481	{
260	SV *rv = &PL_sv_undef;	482	SV *rv = &PL_sv_undef;
261		483
262	if (req->result >= 0)	484	if (req->result >= 0)
…		…
345		567
346	PUSHs (fh);	568	PUSHs (fh);
347	}	569	}
348	break;	570	break;
349		571
		572	case EIO_STATVFS:
		573	case EIO_FSTATVFS:
		574	{
		575	SV *rv = &PL_sv_undef;
		576
		577	#ifndef _WIN32
		578	if (req->result >= 0)
		579	{
		580	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		581	HV *hv = newHV ();
		582
		583	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		584
		585	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		586	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		587	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		588	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		589	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		590	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		591	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		592	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		593	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		594	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		595	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		596	}
		597	#endif
		598
		599	PUSHs (rv);
		600	}
		601
		602	break;
		603
350	case EIO_GROUP:	604	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	605	req->int1 = 2; /* mark group as finished */
352		606
353	if (req->sv1)	607	if (req->sv1)
354	{	608	{
…		…
364	case EIO_NOP:	618	case EIO_NOP:
365	case EIO_BUSY:	619	case EIO_BUSY:
366	break;	620	break;
367		621
368	case EIO_READLINK:	622	case EIO_READLINK:
		623	case EIO_REALPATH:
369	if (req->result > 0)	624	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	625	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	626	break;
372		627
373	case EIO_STAT:	628	case EIO_STAT:
374	case EIO_LSTAT:	629	case EIO_LSTAT:
375	case EIO_FSTAT:	630	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	631	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		632
377	PL_laststatval = req->result;	633	if (!(PL_laststatval = req->result))
		634	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	635	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	636
		637	PUSHs (sv_result);
380	break;	638	break;
381		639
382	case EIO_READ:	640	case EIO_READ:
383	{	641	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	642	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	643	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	644	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	645	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	646	PUSHs (sv_result);
389	}	647	}
390	break;	648	break;
391		649
392	case EIO_DUP2:	650	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	651	if (req->result > 0)
394	req->result = 0;	652	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	653	/* FALLTHROUGH */
396		654
397	default:	655	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	656	PUSHs (sv_result);
399	break;	657	break;
400	}	658	}
401		659
402	errno = req->errorno;	660	errno = req->errorno;
403		661
404	PUTBACK;	662	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	663	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	664	SPAGAIN;
407		665
		666	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		667	SvREFCNT_dec (sv_result);
		668	else
		669	sv_result_cache = sv_result;
		670
408	FREETMPS;	671	FREETMPS;
409	LEAVE;	672	LEAVE;
410		673
411	PUTBACK;	674	PUTBACK;
412	}	675	}
413		676
414	return !!SvTRUE (ERRSV);	677	return !!SvTRUE (ERRSV);
415	}	678	}
416		679
		680	static void
417	static void req_destroy (aio_req req)	681	req_destroy (aio_req req)
418	{	682	{
419	if (req->self)	683	if (req->self)
420	{	684	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	685	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	686	SvREFCNT_dec (req->self);
423	}	687	}
424		688
425	SvREFCNT_dec (req->sv1);	689	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	690	SvREFCNT_dec (req->sv2);
		691	SvREFCNT_dec (req->sv3);
		692	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	693	SvREFCNT_dec (req->callback);
428		694
429	Safefree (req);	695	free (req);
430	}	696	}
431		697
		698	static void
432	static void req_cancel_subs (aio_req grp)	699	req_cancel_subs (aio_req grp)
433	{	700	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	701	if (grp->type != EIO_GROUP)
437	return;	702	return;
438		703
439	SvREFCNT_dec (grp->sv2);	704	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	705	grp->sv2 = 0;
441		706
442	eio_grp_cancel (grp);	707	eio_grp_cancel (grp);
443	}	708	}
444		709
445	static void	710	static void ecb_cold
446	create_respipe (void)	711	create_respipe (void)
447	{	712	{
448	if (s_epipe_renew (&respipe))	713	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	714	croak ("IO::AIO: unable to initialize result pipe");
450	}	715	}
451		716
452	static void poll_wait (void)	717	static void
		718	poll_wait (void)
453	{	719	{
454	while (eio_nreqs ())	720	while (eio_nreqs ())
455	{	721	{
456	int size;	722	int size;
457		723
…		…
466		732
467	s_epipe_wait (&respipe);	733	s_epipe_wait (&respipe);
468	}	734	}
469	}	735	}
470		736
471	static int poll_cb (void)	737	static int
		738	poll_cb (void)
472	{	739	{
473	for (;;)	740	for (;;)
474	{	741	{
475	int res = eio_poll ();	742	int res = eio_poll ();
476		743
…		…
482		749
483	poll_wait ();	750	poll_wait ();
484	}	751	}
485	}	752	}
486		753
487	static void atfork_child (void)	754	static void ecb_cold
		755	reinit (void)
488	{	756	{
489	create_respipe ();	757	create_respipe ();
		758
		759	if (eio_init (want_poll, done_poll) < 0)
		760	croak ("IO::AIO: unable to initialise eio library");
490	}	761	}
		762
		763	/*****************************************************************************/
		764
		765	#if !_POSIX_MAPPED_FILES
		766	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		767	# define munmap(addr,length) (errno = ENOSYS, -1)
		768	#endif
		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
		779	#define MMAP_MAGIC PERL_MAGIC_ext
		780
		781	static int ecb_cold
		782	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		783	{
		784	int old_errno = errno;
		785	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		786	errno = old_errno;
		787
		788	mg->mg_obj = 0; /* just in case */
		789
		790	SvREADONLY_off (sv);
		791
		792	if (SvPVX (sv) != mg->mg_ptr)
		793	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		794
		795	SvCUR_set (sv, 0);
		796	SvPVX (sv) = 0;
		797	SvOK_off (sv);
		798
		799	return 0;
		800	}
		801
		802	static MGVTBL mmap_vtbl = {
		803	0, 0, 0, 0, mmap_free
		804	};
		805
		806	/*****************************************************************************/
491		807
492	static SV *	808	static SV *
493	get_cb (SV *cb_sv)	809	get_cb (SV *cb_sv)
494	{	810	{
495	SvGETMAGIC (cb_sv);	811	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	812	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	813	}
498		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
499	#define dREQ \	835	#define dREQ \
500	SV *cb_cv; \	836	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		837
514	#define REQ_SEND \	838	#define REQ_SEND \
515	PUTBACK; \	839	PUTBACK; \
516	req_submit (req); \	840	req_submit (req); \
517	SPAGAIN; \	841	SPAGAIN; \
518	\	842	\
519	if (GIMME_V != G_VOID) \	843	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	844	XPUSHs (req_sv (req, aio_req_stash));
521		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 = 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;
		911
522	MODULE = IO::AIO PACKAGE = IO::AIO	912	MODULE = IO::AIO PACKAGE = IO::AIO
523		913
524	PROTOTYPES: ENABLE	914	PROTOTYPES: ENABLE
525		915
526	BOOT:	916	BOOT:
527	{	917	{
528	static const struct {	918	static const struct {
529	const char *name;	919	const char *name;
530	IV iv;	920	IV iv;
531	} *civ, const_iv[] = {	921	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	922	# define const_niv(name, value) { # name, (IV) value },
		923	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	924	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	925	const_iv (EXDEV)
535	const_iv (ENOSYS , ENOSYS)	926	const_iv (ENOSYS)
536	const_iv (O_RDONLY, O_RDONLY)	927	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	928	const_iv (O_WRONLY)
		929	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	930	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	931	const_iv (O_TRUNC)
540	#ifndef _WIN32	932	const_iv (O_EXCL)
		933	const_iv (O_APPEND)
		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
541	const_iv (S_IFIFO , S_IFIFO)	951	const_iv (S_IFIFO)
542	#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
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	961	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	962	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	963	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	964	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	965	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (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)
		973
		974	const_iv (ST_RDONLY)
		975	const_iv (ST_NOSUID)
		976	const_iv (ST_NODEV)
		977	const_iv (ST_NOEXEC)
		978	const_iv (ST_SYNCHRONOUS)
		979	const_iv (ST_MANDLOCK)
		980	const_iv (ST_WRITE)
		981	const_iv (ST_APPEND)
		982	const_iv (ST_IMMUTABLE)
		983	const_iv (ST_NOATIME)
		984	const_iv (ST_NODIRATIME)
		985	const_iv (ST_RELATIME)
		986
		987	const_iv (PROT_NONE)
		988	const_iv (PROT_EXEC)
		989	const_iv (PROT_READ)
		990	const_iv (PROT_WRITE)
		991
		992	/*const_iv (MAP_FIXED)*/
		993	const_iv (MAP_PRIVATE)
		994	const_iv (MAP_SHARED)
		995	const_iv (MAP_ANONYMOUS)
		996
		997	/* linuxish */
		998	const_iv (MAP_HUGETLB)
		999	const_iv (MAP_LOCKED)
		1000	const_iv (MAP_NORESERVE)
		1001	const_iv (MAP_POPULATE)
		1002	const_iv (MAP_NONBLOCK)
		1003
		1004	const_eio (MCL_FUTURE)
		1005	const_eio (MCL_CURRENT)
549		1006
550	const_eio (MS_ASYNC)	1007	const_eio (MS_ASYNC)
551	const_eio (MS_INVALIDATE)	1008	const_eio (MS_INVALIDATE)
552	const_eio (MS_SYNC)	1009	const_eio (MS_SYNC)
553		1010
554	const_eio (MT_MODIFY)	1011	const_eio (MT_MODIFY)
555		1012
556	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1013	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
557	const_eio (SYNC_FILE_RANGE_WRITE)	1014	const_eio (SYNC_FILE_RANGE_WRITE)
558	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1015	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1016
		1017	const_eio (FALLOC_FL_KEEP_SIZE)
559		1018
560	const_eio (READDIR_DENTS)	1019	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	1020	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	1021	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1022	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1033	};
575		1034
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1035	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1036	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	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);
579		1039
580	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--)
581	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1041	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1042
583	create_respipe ();	1043	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1044
585	if (eio_init (want_poll, done_poll) < 0)	1045	reinit ();
586	croak ("IO::AIO: unable to initialise eio library");
587
588	/* atfork child called in fifo order, so before eio's handler */
589	X_THREAD_ATFORK (0, 0, atfork_child);
590	}	1046	}
591		1047
592	void	1048	void
		1049	reinit ()
		1050	PROTOTYPE:
		1051
		1052	void
593	max_poll_reqs (int nreqs)	1053	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1054	PROTOTYPE: $
595	CODE:	1055	CODE:
596	eio_set_max_poll_reqs (nreqs);	1056	eio_set_max_poll_reqs (nreqs);
597		1057
598	void	1058	void
…		…
600	PROTOTYPE: $	1060	PROTOTYPE: $
601	CODE:	1061	CODE:
602	eio_set_max_poll_time (nseconds);	1062	eio_set_max_poll_time (nseconds);
603		1063
604	void	1064	void
605	min_parallel (int nthreads)	1065	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1066	PROTOTYPE: $
607	CODE:	1067	CODE:
608	eio_set_min_parallel (nthreads);	1068	eio_set_min_parallel (nthreads);
609		1069
610	void	1070	void
611	max_parallel (int nthreads)	1071	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1072	PROTOTYPE: $
613	CODE:	1073	CODE:
614	eio_set_max_parallel (nthreads);	1074	eio_set_max_parallel (nthreads);
615		1075
616	void	1076	void
617	max_idle (int nthreads)	1077	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1078	PROTOTYPE: $
619	CODE:	1079	CODE:
620	eio_set_max_idle (nthreads);	1080	eio_set_max_idle (nthreads);
621		1081
622	void	1082	void
		1083	idle_timeout (unsigned int seconds)
		1084	PROTOTYPE: $
		1085	CODE:
		1086	eio_set_idle_timeout (seconds);
		1087
		1088	void
623	max_outstanding (int maxreqs)	1089	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1090	PROTOTYPE: $
625	CODE:	1091	CODE:
626	max_outstanding = maxreqs;	1092	max_outstanding = maxreqs;
627		1093
628	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
629	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)
630	PROTOTYPE: $$$;$
631	PPCODE:	1108	PPCODE:
632	{	1109	{
633	dREQ;	1110	dREQ;
634		1111
635	req->type = EIO_OPEN;	1112	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1113	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1114	req->int1 = flags;
639	req->int2 = mode;	1115	req->int2 = mode;
640		1116
641	REQ_SEND;	1117	REQ_SEND;
642	}	1118	}
643		1119
644	void	1120	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1121	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1122	ALIAS:
648	aio_fsync = EIO_FSYNC	1123	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1124	aio_fdatasync = EIO_FDATASYNC
		1125	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1126	PPCODE:
651	{	1127	{
652	int fd = s_fileno_croak (fh, 0);	1128	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1129	dREQ;
654		1130
…		…
659	REQ_SEND (req);	1135	REQ_SEND (req);
660	}	1136	}
661		1137
662	void	1138	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1139	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1140	PPCODE:
666	{	1141	{
667	int fd = s_fileno_croak (fh, 0);	1142	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1143	dREQ;
669		1144
…		…
676		1151
677	REQ_SEND (req);	1152	REQ_SEND (req);
678	}	1153	}
679		1154
680	void	1155	void
681	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)
682	PROTOTYPE: $;$
683	PPCODE:	1157	PPCODE:
684	{	1158	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1159	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1160	dREQ;
688		1161
689	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))
690	{	1181	{
691	int pipefd [2];	1182	int pipefd [2];
692		1183
		1184	if (
		1185	#ifdef _WIN32
		1186	_pipe (pipefd, 1, _O_BINARY) < 0
		1187	#else
693	if (pipe (pipefd) < 0	1188	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| 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	)
696	abort (); /*D*/	1193	abort (); /*D*/
697		1194
698	close_pipe = pipefd [0];	1195	close_fd = pipefd [0];
699	}	1196	}
700		1197
701	req->type = EIO_DUP2;	1198	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1199	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1200	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1201	req->int2 = fd;
705		1202
706	REQ_SEND (req);	1203	REQ_SEND (req);
707	}	1204	}
…		…
709	void	1206	void
710	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)
711	ALIAS:	1208	ALIAS:
712	aio_read = EIO_READ	1209	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1210	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1211	PPCODE:
716	{	1212	{
717	STRLEN svlen;	1213	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1214	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1215	char *svptr = SvPVbyte (data, svlen);
…		…
759	REQ_SEND;	1255	REQ_SEND;
760	}	1256	}
761	}	1257	}
762		1258
763	void	1259	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1260	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
765	PROTOTYPE: $$;$	1261	ALIAS:
		1262	aio_readlink = EIO_READLINK
		1263	aio_realpath = EIO_REALPATH
766	PPCODE:	1264	PPCODE:
767	{	1265	{
768	SV *data;
769	dREQ;	1266	dREQ;
770		1267
771	req->type = EIO_READLINK;	1268	req->type = ix;
772	req->sv1 = newSVsv (path);	1269	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1270
775	REQ_SEND;	1271	REQ_SEND;
776	}	1272	}
777		1273
778	void	1274	void
779	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)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1276	PPCODE:
782	{	1277	{
783	int ifd = s_fileno_croak (in_fh , 0);	1278	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1279	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1280	dREQ;
…		…
795	REQ_SEND;	1290	REQ_SEND;
796	}	1291	}
797		1292
798	void	1293	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1294	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1295	PPCODE:
802	{	1296	{
803	int fd = s_fileno_croak (fh, 0);	1297	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1298	dREQ;
805		1299
…		…
813	}	1307	}
814		1308
815	void	1309	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1310	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
817	ALIAS:	1311	ALIAS:
818	aio_stat = EIO_STAT	1312	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1313	aio_lstat = EIO_LSTAT
		1314	aio_statvfs = EIO_STATVFS
820	PPCODE:	1315	PPCODE:
821	{	1316	{
822	dREQ;	1317	dREQ;
823		1318
824	req->sv1 = newSVsv (fh_or_path);	1319	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
825
826	if (SvPOK (req->sv1))
827	{
828	req->type = ix;
829	req->ptr1 = SvPVbyte_nolen (req->sv1);
830	}
831	else
832	{
833	req->type = EIO_FSTAT;
834	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
835	}
836		1320
837	REQ_SEND;	1321	REQ_SEND;
838	}	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
839		1339
840	void	1340	void
841	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)
842	PPCODE:	1342	PPCODE:
843	{	1343	{
844	dREQ;	1344	dREQ;
845		1345
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1346	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1347	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
849
850	if (SvPOK (req->sv1))
851	{
852	req->type = EIO_UTIME;
853	req->ptr1 = SvPVbyte_nolen (req->sv1);
854	}
855	else
856	{
857	req->type = EIO_FUTIME;
858	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
859	}
860		1349
861	REQ_SEND;	1350	REQ_SEND;
862	}	1351	}
863		1352
864	void	1353	void
865	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)
866	PPCODE:	1355	PPCODE:
867	{	1356	{
868	dREQ;	1357	dREQ;
869		1358
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1359	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1360	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
873	if (SvPOK (req->sv1))
874	{
875	req->type = EIO_TRUNCATE;
876	req->ptr1 = SvPVbyte_nolen (req->sv1);
877	}
878	else
879	{
880	req->type = EIO_FTRUNCATE;
881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882	}
883		1361
884	REQ_SEND;	1362	REQ_SEND;
885	}	1363	}
886		1364
887	void	1365	void
888	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)
889	ALIAS:
890	aio_chmod = EIO_CHMOD
891	aio_mkdir = EIO_MKDIR
892	PPCODE:	1367	PPCODE:
893	{	1368	{
894	dREQ;	1369	dREQ;
895		1370
896	req->int2 = mode;	1371	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1372	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
898
899	if (SvPOK (req->sv1))
900	{
901	req->type = ix;
902	req->ptr1 = SvPVbyte_nolen (req->sv1);
903	}
904	else
905	{
906	req->type = EIO_FCHMOD;
907	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
908	}
909		1373
910	REQ_SEND;	1374	REQ_SEND;
911	}	1375	}
912		1376
913	void	1377	void
…		…
916	{	1380	{
917	dREQ;	1381	dREQ;
918		1382
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1383	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1384	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1385	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
922
923	if (SvPOK (req->sv1))
924	{
925	req->type = EIO_CHOWN;
926	req->ptr1 = SvPVbyte_nolen (req->sv1);
927	}
928	else
929	{
930	req->type = EIO_FCHOWN;
931	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
932	}
933		1386
934	REQ_SEND;	1387	REQ_SEND;
935	}	1388	}
936		1389
937	void	1390	void
…		…
939	PPCODE:	1392	PPCODE:
940	{	1393	{
941	dREQ;	1394	dREQ;
942		1395
943	req->type = EIO_READDIR;	1396	req->type = EIO_READDIR;
944	req->sv1 = newSVsv (pathname);
945	req->ptr1 = SvPVbyte_nolen (req->sv1);
946	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1397	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1398
948	if (flags & EIO_READDIR_DENTS)	1399	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1400	req->int1 |= EIO_READDIR_CUSTOM2;
950		1401
		1402	req_set_path1 (req, pathname);
		1403
951	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;
952	}	1418	}
953		1419
954	void	1420	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1421	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
956	ALIAS:	1422	ALIAS:
…		…
960	PPCODE:	1426	PPCODE:
961	{	1427	{
962	dREQ;	1428	dREQ;
963		1429
964	req->type = ix;	1430	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1431	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1432
968	REQ_SEND;	1433	REQ_SEND;
969	}	1434	}
970		1435
971	void	1436	void
…		…
975	aio_symlink = EIO_SYMLINK	1440	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1441	aio_rename = EIO_RENAME
977	PPCODE:	1442	PPCODE:
978	{	1443	{
979	dREQ;	1444	dREQ;
		1445	eio_wd wd2 = 0;
980		1446
981	req->type = ix;	1447	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1448	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1450	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1451
987	REQ_SEND;	1452	REQ_SEND;
988	}	1453	}
989		1454
990	void	1455	void
…		…
992	PPCODE:	1457	PPCODE:
993	{	1458	{
994	dREQ;	1459	dREQ;
995		1460
996	req->type = EIO_MKNOD;	1461	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1462	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1463	req->offs = dev;
		1464	req_set_path1 (req, pathname);
1001		1465
1002	REQ_SEND;	1466	REQ_SEND;
1003	}	1467	}
1004		1468
1005	void	1469	void
1006	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)
1007	ALIAS:	1471	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1472	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1473	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1474	PPCODE:
1012	{	1475	{
1013	STRLEN svlen;	1476	STRLEN svlen;
		1477	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1478	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);
1016		1479
1017	if (offset < 0)	1480	if (offset < 0)
1018	offset += svlen;	1481	offset += svlen;
1019		1482
1020	if (offset < 0 || offset > svlen)	1483	if (offset < 0 || offset > svlen)
…		…
1025		1488
1026	{	1489	{
1027	dREQ;	1490	dREQ;
1028		1491
1029	req->type = ix;	1492	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1493	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1494	req->ptr2 = (char *)svptr + offset;
		1495	req->size = len;
1033	req->int1 = flags;	1496	req->int1 = flags;
1034		1497
1035	REQ_SEND;	1498	REQ_SEND;
1036	}	1499	}
1037	}	1500	}
1038		1501
1039	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
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
1041	PPCODE:	1545	PPCODE:
1042	{	1546	{
1043	dREQ;	1547	dREQ;
1044		1548
…		…
1048	REQ_SEND;	1552	REQ_SEND;
1049	}	1553	}
1050		1554
1051	void	1555	void
1052	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1557	PPCODE:
1055	{	1558	{
1056	dREQ;	1559	dREQ;
1057		1560
1058	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
…		…
1075	REQ_SEND;	1578	REQ_SEND;
1076	}	1579	}
1077		1580
1078	int	1581	int
1079	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
1080	PROTOTYPE: ;$
1081	CODE:	1583	CODE:
1082	RETVAL = next_pri;	1584	RETVAL = next_pri;
1083	if (items > 0)	1585	if (items > 0)
1084	{	1586	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1600	next_pri = nice;
1099		1601
1100	void	1602	void
1101	flush ()	1603	flush ()
1102	PROTOTYPE:
1103	CODE:	1604	CODE:
1104	while (eio_nreqs ())	1605	while (eio_nreqs ())
1105	{	1606	{
1106	poll_wait ();	1607	poll_wait ();
1107	poll_cb ();	1608	poll_cb ();
1108	}	1609	}
1109		1610
1110	int	1611	int
1111	poll()	1612	poll ()
1112	PROTOTYPE:
1113	CODE:	1613	CODE:
1114	poll_wait ();	1614	poll_wait ();
1115	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
1116	OUTPUT:	1616	OUTPUT:
1117	RETVAL	1617	RETVAL
1118		1618
1119	int	1619	int
1120	poll_fileno()	1620	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1621	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1622	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1623	OUTPUT:
1125	RETVAL	1624	RETVAL
1126		1625
1127	int	1626	int
1128	poll_cb(...)	1627	poll_cb (...)
1129	PROTOTYPE:	1628	PROTOTYPE:
1130	CODE:	1629	CODE:
1131	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
1132	OUTPUT:	1631	OUTPUT:
1133	RETVAL	1632	RETVAL
1134		1633
1135	void	1634	void
1136	poll_wait()	1635	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1636	CODE:
1139	poll_wait ();	1637	poll_wait ();
1140		1638
1141	int	1639	int
1142	nreqs()	1640	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1641	CODE:
1145	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
1146	OUTPUT:	1643	OUTPUT:
1147	RETVAL	1644	RETVAL
1148		1645
1149	int	1646	int
1150	nready()	1647	nready ()
1151	PROTOTYPE:
1152	CODE:	1648	CODE:
1153	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1154	OUTPUT:	1650	OUTPUT:
1155	RETVAL	1651	RETVAL
1156		1652
1157	int	1653	int
1158	npending()	1654	npending ()
1159	PROTOTYPE:
1160	CODE:	1655	CODE:
1161	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1162	OUTPUT:	1657	OUTPUT:
1163	RETVAL	1658	RETVAL
1164		1659
1165	int	1660	int
1166	nthreads()	1661	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1662	CODE:
1169	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1170	OUTPUT:	1664	OUTPUT:
1171	RETVAL	1665	RETVAL
1172		1666
1173	int	1667	int
1174	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)
1175	PROTOTYPE: $$$$
1176	CODE:	1669	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1670	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1671	OUTPUT:
1183	RETVAL	1672	RETVAL
1184		1673
1185	ssize_t	1674	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1676	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1678	OUTPUT:
1191	RETVAL	1679	RETVAL
1192		1680
		1681	void
		1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1683	PPCODE:
		1684	sv_unmagic (scalar, MMAP_MAGIC);
		1685	{
		1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1688	if (addr == (void *)-1)
		1689	XSRETURN_NO;
		1690
		1691	sv_force_normal (scalar);
		1692
		1693	/* we store the length in mg_obj, as namlen is I32 :/ */
		1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1695	->mg_obj = (SV *)length;
		1696
		1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
		1699	if (!(prot & PROT_WRITE))
		1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
		1704
		1705	SvPVX (scalar) = (char *)addr;
		1706	SvCUR_set (scalar, length);
		1707	SvLEN_set (scalar, 0);
		1708	SvPOK_only (scalar);
		1709
		1710	XSRETURN_YES;
		1711	}
		1712
		1713	void
		1714	munmap (SV *scalar)
		1715	CODE:
		1716	sv_unmagic (scalar, MMAP_MAGIC);
		1717
		1718	int
		1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1720	ALIAS:
		1721	mprotect = 1
		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);
		1768	#if _POSIX_MEMLOCK_RANGE
		1769	RETVAL = munlock (addr, len);
		1770	#else
		1771	RETVAL = ((errno = ENOSYS), -1);
		1772	#endif
		1773	}
		1774	OUTPUT:
		1775	RETVAL
		1776
		1777	int
		1778	munlockall ()
		1779	CODE:
		1780	#if _POSIX_MEMLOCK
		1781	munlockall ();
		1782	#else
		1783	RETVAL = -1;
		1784	errno = ENOSYS;
		1785	#endif
		1786	OUTPUT:
		1787	RETVAL
		1788
1193	void _on_next_submit (SV *cb)	1789	void _on_next_submit (SV *cb)
1194	CODE:	1790	CODE:
1195	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		1793
1198	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1199		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
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		1825
1202	void	1826	void
1203	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1204	CODE:	1828	CODE:

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