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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC vs.
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		23
25	/* perl namespace pollution */	24	/* perl namespace pollution */
26	#undef VERSION	25	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		26
77	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	29	#undef readdir
80	#undef opendir	30	#undef opendir
81	#undef closedir	31	#undef closedir
82		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#define EIO_STRUCT_STAT struct _stati64
		68	#define EIO_STRUCT_STATI64
		69
		70	#else
		71
		72	#include <sys/time.h>
		73	#include <sys/select.h>
		74	#include <unistd.h>
		75	#include <utime.h>
		76	#include <signal.h>
		77
83	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
		79
		80	#endif
84		81
85	/* use NV for 32 bit perls as it allows larger offsets */	82	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8	83	#if IVSIZE >= 8
87	# define VAL64 IV	84	# define VAL64 IV
88	# define SvVAL64 SvIV	85	# define SvVAL64 SvIV
…		…
108		105
109	typedef SV SV8; /* byte-sv, used for argument-checking */	106	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	107	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	108	typedef int aio_wfd; /* write file descriptor */
112		109
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	110	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		111
115	#define EIO_REQ_MEMBERS \	112	#define EIO_REQ_MEMBERS \
116	SV *callback; \	113	SV *callback; \
117	SV *sv1, *sv2; \	114	SV *sv1, *sv2; \
		115	SV *sv3, *sv4; \
118	STRLEN stroffset; \	116	STRLEN stroffset; \
119	SV *self;	117	SV *self;
120		118
121	#define EIO_NO_WRAPPERS 1	119	#define EIO_NO_WRAPPERS 1
122		120
		121	#include "libeio/config.h"
123	#include "libeio/eio.h"	122	#include "libeio/eio.h"
		123
		124	static int req_invoke (eio_req *req);
		125	#define EIO_FINISH(req) req_invoke (req)
		126	static void req_destroy (eio_req *grp);
		127	#define EIO_DESTROY(req) req_destroy (req)
		128
		129	#include "libeio/eio.c"
		130
		131	/* Linux/others */
		132	#ifndef O_ASYNC
		133	# define O_ASYNC 0
		134	#endif
		135	#ifndef O_DIRECT
		136	# define O_DIRECT 0
		137	#endif
		138	#ifndef O_NOATIME
		139	# define O_NOATIME 0
		140	#endif
		141
		142	/* POSIX */
		143	#ifndef O_CLOEXEC
		144	# define O_CLOEXEC 0
		145	#endif
		146	#ifndef O_NOFOLLOW
		147	# define O_NOFOLLOW 0
		148	#endif
		149	#ifndef O_NOCTTY
		150	# define O_NOCTTY 0
		151	#endif
		152	#ifndef O_NONBLOCK
		153	# define O_NONBLOCK 0
		154	#endif
		155	#ifndef O_EXEC
		156	# define O_EXEC 0
		157	#endif
		158	#ifndef O_SEARCH
		159	# define O_SEARCH 0
		160	#endif
		161	#ifndef O_DIRECTORY
		162	# define O_DIRECTORY 0
		163	#endif
		164	#ifndef O_DSYNC
		165	# define O_DSYNC 0
		166	#endif
		167	#ifndef O_RSYNC
		168	# define O_RSYNC 0
		169	#endif
		170	#ifndef O_SYNC
		171	# define O_SYNC 0
		172	#endif
		173	#ifndef O_TTY_INIT
		174	# define O_TTY_INIT 0
		175	#endif
124		176
125	#ifndef POSIX_FADV_NORMAL	177	#ifndef POSIX_FADV_NORMAL
126	# define POSIX_FADV_NORMAL 0	178	# define POSIX_FADV_NORMAL 0
127	# define NO_FADVISE 1
128	#endif	179	#endif
129	#ifndef POSIX_FADV_SEQUENTIAL	180	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0	181	# define POSIX_FADV_SEQUENTIAL 0
131	#endif	182	#endif
132	#ifndef POSIX_FADV_RANDOM	183	#ifndef POSIX_FADV_RANDOM
…		…
140	#endif	191	#endif
141	#ifndef POSIX_FADV_DONTNEED	192	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0	193	# define POSIX_FADV_DONTNEED 0
143	#endif	194	#endif
144		195
		196	#if !HAVE_POSIX_FADVISE
		197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		198	#endif
		199
145	#ifndef POSIX_MADV_NORMAL	200	#ifndef POSIX_MADV_NORMAL
146	# define POSIX_MADV_NORMAL 0	201	# define POSIX_MADV_NORMAL 0
147	# define NO_MADVISE 1
148	#endif	202	#endif
149	#ifndef POSIX_MADV_SEQUENTIAL	203	#ifndef POSIX_MADV_SEQUENTIAL
150	# define POSIX_MADV_SEQUENTIAL 0	204	# define POSIX_MADV_SEQUENTIAL 0
151	#endif	205	#endif
152	#ifndef POSIX_MADV_RANDOM	206	#ifndef POSIX_MADV_RANDOM
…		…
157	#endif	211	#endif
158	#ifndef POSIX_MADV_DONTNEED	212	#ifndef POSIX_MADV_DONTNEED
159	# define POSIX_MADV_DONTNEED 0	213	# define POSIX_MADV_DONTNEED 0
160	#endif	214	#endif
161		215
		216	#if !HAVE_POSIX_MADVISE
		217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		218	#endif
		219
		220	#ifndef PROT_NONE
		221	# define PROT_NONE 0
		222	#endif
		223	#ifndef PROT_READ
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_WRITE
		227	# define PROT_READ 0
		228	#endif
		229	#ifndef PROT_EXEC
		230	# define PROT_EXEC 0
		231	#endif
		232
		233	#ifndef ST_RDONLY
		234	# define ST_RDONLY 0
		235	#endif
		236	#ifndef ST_NOSUID
		237	# define ST_NOSUID 0
		238	#endif
162	#ifndef ST_NODEV	239	#ifndef ST_NODEV
163	# define ST_NODEV 0	240	# define ST_NODEV 0
164	#endif	241	#endif
165	#ifndef ST_NOEXEC	242	#ifndef ST_NOEXEC
166	# define ST_NOEXEC 0	243	# define ST_NOEXEC 0
…		…
188	#endif	265	#endif
189	#ifndef ST_RELATIME	266	#ifndef ST_RELATIME
190	# define ST_RELATIME 0	267	# define ST_RELATIME 0
191	#endif	268	#endif
192		269
193	#ifndef MCL_CURRENT	270	#ifndef S_IFIFO
194	# define MCL_CURRENT 0	271	# define S_IFIFO 0
195	#endif	272	#endif
196	#ifndef MCL_FUTURE	273	#ifndef S_IFCHR
197	# define MCL_FUTURE 0	274	# define S_IFCHR 0
		275	#endif
		276	#ifndef S_IFBLK
		277	# define S_IFBLK 0
		278	#endif
		279	#ifndef S_IFLNK
		280	# define S_IFLNK 0
		281	#endif
		282	#ifndef S_IFREG
		283	# define S_IFREG 0
		284	#endif
		285	#ifndef S_IFDIR
		286	# define S_IFDIR 0
		287	#endif
		288	#ifndef S_IFWHT
		289	# define S_IFWHT 0
		290	#endif
		291	#ifndef S_IFSOCK
		292	# define S_IFSOCK 0
198	#endif	293	#endif
199		294
200	#ifndef MAP_ANONYMOUS	295	#ifndef MAP_ANONYMOUS
201	# ifdef MAP_ANON	296	# ifdef MAP_ANON
202	# define MAP_ANONYMOUS MAP_ANON	297	# define MAP_ANONYMOUS MAP_ANON
…		…
218	#endif	313	#endif
219	#ifndef MAP_NONBLOCK	314	#ifndef MAP_NONBLOCK
220	# define MAP_NONBLOCK 0	315	# define MAP_NONBLOCK 0
221	#endif	316	#endif
222		317
		318	#ifndef makedev
		319	# define makedev(maj,min) (((maj) << 8) | (min))
		320	#endif
		321	#ifndef major
		322	# define major(dev) ((dev) >> 8)
		323	#endif
		324	#ifndef minor
		325	# define minor(dev) ((dev) & 0xff)
		326	#endif
		327
223	#ifndef PAGESIZE	328	#ifndef PAGESIZE
224	# define PAGESIZE sysconf (_SC_PAGESIZE)	329	# define PAGESIZE sysconf (_SC_PAGESIZE)
225	#endif	330	#endif
226
227	static int req_invoke (eio_req *req);
228	#define EIO_FINISH(req) req_invoke (req)
229	static void req_destroy (eio_req *grp);
230	#define EIO_DESTROY(req) req_destroy (req)
231		331
232	enum {	332	enum {
233	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
234	};	334	};
235		335
236	#include "libeio/eio.c"
237
238	typedef eio_req *aio_req;	336	typedef eio_req *aio_req;
239	typedef eio_req *aio_req_ornot;	337	typedef eio_req *aio_req_ornot;
		338	typedef eio_wd aio_wd;
240		339
241	static SV *on_next_submit;	340	static SV *on_next_submit;
242	static int next_pri = EIO_PRI_DEFAULT;	341	static int next_pri = EIO_PRI_DEFAULT;
243	static int max_outstanding;	342	static int max_outstanding;
244		343
245	static s_epipe respipe;	344	static s_epipe respipe;
246		345
247	static void req_destroy (aio_req req);	346	static void req_destroy (aio_req req);
248	static void req_cancel (aio_req req);	347	static void req_cancel (aio_req req);
249		348
250	static void want_poll (void)	349	static void
		350	want_poll (void)
251	{	351	{
252	/* write a dummy byte to the pipe so fh becomes ready */	352	/* write a dummy byte to the pipe so fh becomes ready */
253	s_epipe_signal (&respipe);	353	s_epipe_signal (&respipe);
254	}	354	}
255		355
256	static void done_poll (void)	356	static void
		357	done_poll (void)
257	{	358	{
258	/* read any signals sent by the worker threads */	359	/* read any signals sent by the worker threads */
259	s_epipe_drain (&respipe);	360	s_epipe_drain (&respipe);
260	}	361	}
261		362
262	/* must be called at most once */	363	/* must be called at most once */
		364	static SV *
263	static SV *req_sv (aio_req req, HV *stash)	365	req_sv (aio_req req, HV *stash)
264	{	366	{
265	if (!req->self)	367	if (!req->self)
266	{	368	{
267	req->self = (SV *)newHV ();	369	req->self = (SV *)newHV ();
268	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	370	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
269	}	371	}
270		372
271	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	373	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
272	}	374	}
273		375
274	static aio_req SvAIO_REQ (SV *sv)	376	static SV *
		377	newSVaio_wd (aio_wd wd)
		378	{
		379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		380	}
		381
		382	static aio_req
		383	SvAIO_REQ (SV *sv)
275	{	384	{
276	MAGIC *mg;	385	MAGIC *mg;
277		386
278	if (!SvROK (sv)	387	if (!SvROK (sv)
		388	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	389	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
280	&& SvSTASH (SvRV (sv)) != aio_req_stash	390	&& SvSTASH (SvRV (sv)) != aio_req_stash
281	&& !sv_derived_from (sv, "IO::AIO::REQ")))	391	&& !sv_derived_from (sv, "IO::AIO::REQ")))
282	croak ("object of class IO::AIO::REQ expected");	392	croak ("object of class IO::AIO::REQ expected");
283		393
284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	394	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
285		395
286	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
287	}	397	}
288		398
		399	static aio_wd
		400	SvAIO_WD (SV *sv)
		401	{
		402	if (!SvROK (sv)
		403	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		406
		407	return (aio_wd)(long)SvIVX (SvRV (sv));
		408	}
		409
		410	static void
289	static void aio_grp_feed (aio_req grp)	411	aio_grp_feed (aio_req grp)
290	{	412	{
291	if (grp->sv2 && SvOK (grp->sv2))	413	if (grp->sv2 && SvOK (grp->sv2))
292	{	414	{
293	dSP;	415	dSP;
294		416
…		…
302	FREETMPS;	424	FREETMPS;
303	LEAVE;	425	LEAVE;
304	}	426	}
305	}	427	}
306		428
		429	static void
307	static void req_submit (eio_req *req)	430	req_submit (eio_req *req)
308	{	431	{
309	eio_submit (req);	432	eio_submit (req);
310		433
311	if (expect_false (on_next_submit))	434	if (expect_false (on_next_submit))
312	{	435	{
…		…
319	PUTBACK;	442	PUTBACK;
320	call_sv (cb, G_DISCARD | G_EVAL);	443	call_sv (cb, G_DISCARD | G_EVAL);
321	}	444	}
322	}	445	}
323		446
		447	static int
324	static int req_invoke (eio_req *req)	448	req_invoke (eio_req *req)
325	{	449	{
326	if (req->flags & FLAG_SV2_RO_OFF)	450	if (req->flags & FLAG_SV2_RO_OFF)
327	SvREADONLY_off (req->sv2);	451	SvREADONLY_off (req->sv2);
328		452
329	if (!EIO_CANCELLED (req) && req->callback)	453	if (!EIO_CANCELLED (req) && req->callback)
…		…
340	/* do not recreate the result IV from scratch each time */	464	/* do not recreate the result IV from scratch each time */
341	if (expect_true (sv_result_cache))	465	if (expect_true (sv_result_cache))
342	{	466	{
343	sv_result = sv_result_cache; sv_result_cache = 0;	467	sv_result = sv_result_cache; sv_result_cache = 0;
344	SvIV_set (sv_result, req->result);	468	SvIV_set (sv_result, req->result);
		469	SvIOK_only (sv_result);
345	}	470	}
346	else	471	else
347	{	472	{
348	sv_result = newSViv (req->result);	473	sv_result = newSViv (req->result);
349	SvREADONLY_on (sv_result);	474	SvREADONLY_on (sv_result);
350	}	475	}
351		476
352	switch (req->type)	477	switch (req->type)
353	{	478	{
		479	case EIO_WD_OPEN:
		480	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		481	break;
		482
354	case EIO_READDIR:	483	case EIO_READDIR:
355	{	484	{
356	SV *rv = &PL_sv_undef;	485	SV *rv = &PL_sv_undef;
357		486
358	if (req->result >= 0)	487	if (req->result >= 0)
…		…
446	case EIO_STATVFS:	575	case EIO_STATVFS:
447	case EIO_FSTATVFS:	576	case EIO_FSTATVFS:
448	{	577	{
449	SV *rv = &PL_sv_undef;	578	SV *rv = &PL_sv_undef;
450		579
		580	#ifndef _WIN32
451	if (req->result >= 0)	581	if (req->result >= 0)
452	{	582	{
453	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
454	HV *hv = newHV ();	584	HV *hv = newHV ();
455		585
…		…
465	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
466	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
467	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
468	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
469	}	599	}
		600	#endif
470		601
471	PUSHs (rv);	602	PUSHs (rv);
472	}	603	}
473		604
474	break;	605	break;
…		…
490	case EIO_NOP:	621	case EIO_NOP:
491	case EIO_BUSY:	622	case EIO_BUSY:
492	break;	623	break;
493		624
494	case EIO_READLINK:	625	case EIO_READLINK:
		626	case EIO_REALPATH:
495	if (req->result > 0)	627	if (req->result > 0)
496	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	628	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
497	break;	629	break;
498		630
499	case EIO_STAT:	631	case EIO_STAT:
500	case EIO_LSTAT:	632	case EIO_LSTAT:
501	case EIO_FSTAT:	633	case EIO_FSTAT:
502	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	634	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		635
503	PL_laststatval = req->result;	636	if (!(PL_laststatval = req->result))
		637	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
504	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	638	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		639
505	PUSHs (sv_result);	640	PUSHs (sv_result);
		641	break;
		642
		643	case EIO_SEEK:
		644	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
506	break;	645	break;
507		646
508	case EIO_READ:	647	case EIO_READ:
509	{	648	{
510	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	649	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
513	SvSETMAGIC (req->sv2);	652	SvSETMAGIC (req->sv2);
514	PUSHs (sv_result);	653	PUSHs (sv_result);
515	}	654	}
516	break;	655	break;
517		656
518	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
519	if (req->result > 0)	658	if (req->result > 0)
520	SvIV_set (sv_result, 0);	659	SvIV_set (sv_result, 0);
521	/* FALLTHROUGH */	660	/* FALLTHROUGH */
522		661
523	default:	662	default:
…		…
543	}	682	}
544		683
545	return !!SvTRUE (ERRSV);	684	return !!SvTRUE (ERRSV);
546	}	685	}
547		686
		687	static void
548	static void req_destroy (aio_req req)	688	req_destroy (aio_req req)
549	{	689	{
550	if (req->self)	690	if (req->self)
551	{	691	{
552	sv_unmagic (req->self, PERL_MAGIC_ext);	692	sv_unmagic (req->self, PERL_MAGIC_ext);
553	SvREFCNT_dec (req->self);	693	SvREFCNT_dec (req->self);
554	}	694	}
555		695
556	SvREFCNT_dec (req->sv1);	696	SvREFCNT_dec (req->sv1);
557	SvREFCNT_dec (req->sv2);	697	SvREFCNT_dec (req->sv2);
		698	SvREFCNT_dec (req->sv3);
		699	SvREFCNT_dec (req->sv4);
558	SvREFCNT_dec (req->callback);	700	SvREFCNT_dec (req->callback);
559		701
560	Safefree (req);	702	free (req);
561	}	703	}
562		704
		705	static void
563	static void req_cancel_subs (aio_req grp)	706	req_cancel_subs (aio_req grp)
564	{	707	{
565	aio_req sub;
566
567	if (grp->type != EIO_GROUP)	708	if (grp->type != EIO_GROUP)
568	return;	709	return;
569		710
570	SvREFCNT_dec (grp->sv2);	711	SvREFCNT_dec (grp->sv2);
571	grp->sv2 = 0;	712	grp->sv2 = 0;
572		713
573	eio_grp_cancel (grp);	714	eio_grp_cancel (grp);
574	}	715	}
575		716
576	static void	717	static void ecb_cold
577	create_respipe (void)	718	create_respipe (void)
578	{	719	{
579	if (s_epipe_renew (&respipe))	720	if (s_epipe_renew (&respipe))
580	croak ("IO::AIO: unable to initialize result pipe");	721	croak ("IO::AIO: unable to initialize result pipe");
581	}	722	}
582		723
583	static void poll_wait (void)	724	static void
		725	poll_wait (void)
584	{	726	{
585	while (eio_nreqs ())	727	while (eio_nreqs ())
586	{	728	{
587	int size;	729	int size;
588		730
…		…
597		739
598	s_epipe_wait (&respipe);	740	s_epipe_wait (&respipe);
599	}	741	}
600	}	742	}
601		743
602	static int poll_cb (void)	744	static int
		745	poll_cb (void)
603	{	746	{
604	for (;;)	747	for (;;)
605	{	748	{
606	int res = eio_poll ();	749	int res = eio_poll ();
607		750
…		…
613		756
614	poll_wait ();	757	poll_wait ();
615	}	758	}
616	}	759	}
617		760
618	static void atfork_child (void)	761	static void ecb_cold
		762	reinit (void)
619	{	763	{
620	create_respipe ();	764	create_respipe ();
		765
		766	if (eio_init (want_poll, done_poll) < 0)
		767	croak ("IO::AIO: unable to initialise eio library");
621	}	768	}
622		769
623	/*****************************************************************************/	770	/*****************************************************************************/
624		771
625	#if !_POSIX_MAPPED_FILES	772	#if !_POSIX_MAPPED_FILES
626	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	773	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
627	# define munmap(addr,length) (errno = ENOSYS, -1)	774	# define munmap(addr,length) (errno = ENOSYS, -1)
628	#endif	775	#endif
629		776
		777	#if !_POSIX_MEMORY_PROTECTION
		778	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		779	# define PROT_NONE 0
		780	# define PROT_WRITE 0
		781	# define MAP_PRIVATE 0
		782	# define MAP_SHARED 0
		783	# define MAP_FIXED 0
		784	#endif
		785
630	#define MMAP_MAGIC PERL_MAGIC_ext	786	#define MMAP_MAGIC PERL_MAGIC_ext
631		787
632	static int	788	static int ecb_cold
633	mmap_free (pTHX_ SV *sv, MAGIC *mg)	789	mmap_free (pTHX_ SV *sv, MAGIC *mg)
634	{	790	{
635	int old_errno = errno;	791	int old_errno = errno;
636	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	792	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
637	errno = old_errno;	793	errno = old_errno;
…		…
661	{	817	{
662	SvGETMAGIC (cb_sv);	818	SvGETMAGIC (cb_sv);
663	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	819	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
664	}	820	}
665		821
		822	static aio_req ecb_noinline
		823	dreq (SV *callback)
		824	{
		825	SV *cb_cv;
		826	aio_req req;
		827	int req_pri = next_pri;
		828	next_pri = EIO_PRI_DEFAULT;
		829
		830	cb_cv = get_cb (callback);
		831
		832	req = calloc (sizeof (*req), 1);
		833	if (!req)
		834	croak ("out of memory during eio_req allocation");
		835
		836	req->callback = SvREFCNT_inc (cb_cv);
		837	req->pri = req_pri;
		838
		839	return req;
		840	}
		841
666	#define dREQ \	842	#define dREQ \
667	SV *cb_cv; \	843	aio_req req = dreq (callback); \
668	aio_req req; \
669	int req_pri = next_pri; \
670	next_pri = EIO_PRI_DEFAULT; \
671	\
672	cb_cv = get_cb (callback); \
673	\
674	Newz (0, req, 1, eio_req); \
675	if (!req) \
676	croak ("out of memory during eio_req allocation"); \
677	\
678	req->callback = SvREFCNT_inc (cb_cv); \
679	req->pri = req_pri
680		844
681	#define REQ_SEND \	845	#define REQ_SEND \
682	PUTBACK; \	846	PUTBACK; \
683	req_submit (req); \	847	req_submit (req); \
684	SPAGAIN; \	848	SPAGAIN; \
685	\	849	\
686	if (GIMME_V != G_VOID) \	850	if (GIMME_V != G_VOID) \
687	XPUSHs (req_sv (req, aio_req_stash));	851	XPUSHs (req_sv (req, aio_req_stash));
		852
		853	ecb_inline void
		854	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		855	{
		856	if (expect_false (SvROK (path)))
		857	{
		858	SV *rv = SvRV (path);
		859	SV *wdob;
		860
		861	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		862	{
		863	path = AvARRAY (rv)[1];
		864	wdob = AvARRAY (rv)[0];
		865
		866	if (SvOK (wdob))
		867	{
		868	*wd = SvAIO_WD (wdob);
		869	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		870	}
		871	else
		872	*wd = EIO_INVALID_WD;
		873	}
		874	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		875	{
		876	*wd = (aio_wd)(long)SvIVX (rv);
		877	*wdsv = SvREFCNT_inc_NN (rv);
		878	*ptr = ".";
		879	return; /* path set to "." */
		880	}
		881	else
		882	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		883	}
		884
		885	*pathsv = newSVsv (path);
		886	*ptr = SvPVbyte_nolen (*pathsv);
		887	}
		888
		889	static void ecb_noinline
		890	req_set_path1 (aio_req req, SV *path)
		891	{
		892	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		893	}
		894
		895	static void ecb_noinline
		896	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		897	{
		898	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		899
		900	switch (SvTYPE (rv))
		901	{
		902	case SVt_PVIO:
		903	case SVt_PVLV:
		904	case SVt_PVGV:
		905	req->type = type_fh;
		906	req->sv1 = newSVsv (fh_or_path);
		907	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		908	break;
		909
		910	default:
		911	req->type = type_path;
		912	req_set_path1 (req, fh_or_path);
		913	break;
		914	}
		915	}
		916
		917	XS(boot_IO__AIO) ecb_cold;
688		918
689	MODULE = IO::AIO PACKAGE = IO::AIO	919	MODULE = IO::AIO PACKAGE = IO::AIO
690		920
691	PROTOTYPES: ENABLE	921	PROTOTYPES: ENABLE
692		922
…		…
706	const_iv (O_RDWR)	936	const_iv (O_RDWR)
707	const_iv (O_CREAT)	937	const_iv (O_CREAT)
708	const_iv (O_TRUNC)	938	const_iv (O_TRUNC)
709	const_iv (O_EXCL)	939	const_iv (O_EXCL)
710	const_iv (O_APPEND)	940	const_iv (O_APPEND)
711	#ifndef _WIN32	941
		942	const_iv (O_ASYNC)
		943	const_iv (O_DIRECT)
		944	const_iv (O_NOATIME)
		945
		946	const_iv (O_CLOEXEC)
		947	const_iv (O_NOCTTY)
		948	const_iv (O_NOFOLLOW)
		949	const_iv (O_NONBLOCK)
		950	const_iv (O_EXEC)
		951	const_iv (O_SEARCH)
		952	const_iv (O_DIRECTORY)
		953	const_iv (O_DSYNC)
		954	const_iv (O_RSYNC)
		955	const_iv (O_SYNC)
		956	const_iv (O_TTY_INIT)
		957
712	const_iv (S_IFIFO)	958	const_iv (S_IFIFO)
713	#endif	959	const_iv (S_IFCHR)
		960	const_iv (S_IFBLK)
		961	const_iv (S_IFLNK)
		962	const_iv (S_IFREG)
		963	const_iv (S_IFDIR)
		964	const_iv (S_IFWHT)
		965	const_iv (S_IFSOCK)
		966	const_iv (S_IFMT)
		967
714	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
715	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
716	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
717	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
718	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
735	const_iv (ST_IMMUTABLE)	989	const_iv (ST_IMMUTABLE)
736	const_iv (ST_NOATIME)	990	const_iv (ST_NOATIME)
737	const_iv (ST_NODIRATIME)	991	const_iv (ST_NODIRATIME)
738	const_iv (ST_RELATIME)	992	const_iv (ST_RELATIME)
739		993
		994	const_iv (PROT_NONE)
740	const_iv (PROT_EXEC)	995	const_iv (PROT_EXEC)
741	const_iv (PROT_NONE)
742	const_iv (PROT_READ)	996	const_iv (PROT_READ)
743	const_iv (PROT_WRITE)	997	const_iv (PROT_WRITE)
744		998
745	/*const_iv (MAP_FIXED)*/	999	/*const_iv (MAP_FIXED)*/
746	const_iv (MAP_PRIVATE)	1000	const_iv (MAP_PRIVATE)
…		…
752	const_iv (MAP_LOCKED)	1006	const_iv (MAP_LOCKED)
753	const_iv (MAP_NORESERVE)	1007	const_iv (MAP_NORESERVE)
754	const_iv (MAP_POPULATE)	1008	const_iv (MAP_POPULATE)
755	const_iv (MAP_NONBLOCK)	1009	const_iv (MAP_NONBLOCK)
756		1010
		1011	const_eio (SEEK_SET)
		1012	const_eio (SEEK_CUR)
		1013	const_eio (SEEK_END)
		1014
757	const_iv (MCL_FUTURE)	1015	const_eio (MCL_FUTURE)
758	const_iv (MCL_CURRENT)	1016	const_eio (MCL_CURRENT)
759		1017
760	const_eio (MS_ASYNC)	1018	const_eio (MS_ASYNC)
761	const_eio (MS_INVALIDATE)	1019	const_eio (MS_INVALIDATE)
762	const_eio (MS_SYNC)	1020	const_eio (MS_SYNC)
763		1021
764	const_eio (MT_MODIFY)	1022	const_eio (MT_MODIFY)
765		1023
766	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
767	const_eio (SYNC_FILE_RANGE_WRITE)	1025	const_eio (SYNC_FILE_RANGE_WRITE)
768	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1027
		1028	const_eio (FALLOC_FL_KEEP_SIZE)
769		1029
770	const_eio (READDIR_DENTS)	1030	const_eio (READDIR_DENTS)
771	const_eio (READDIR_DIRS_FIRST)	1031	const_eio (READDIR_DIRS_FIRST)
772	const_eio (READDIR_STAT_ORDER)	1032	const_eio (READDIR_STAT_ORDER)
773	const_eio (READDIR_FOUND_UNKNOWN)	1033	const_eio (READDIR_FOUND_UNKNOWN)
…		…
784	};	1044	};
785		1045
786	aio_stash = gv_stashpv ("IO::AIO" , 1);	1046	aio_stash = gv_stashpv ("IO::AIO" , 1);
787	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1047	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
788	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1048	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1049	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
789		1050
790	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1051	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
791	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1052	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
792		1053
793	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1054	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
794		1055
795	create_respipe ();	1056	reinit ();
796
797	if (eio_init (want_poll, done_poll) < 0)
798	croak ("IO::AIO: unable to initialise eio library");
799
800	/* atfork child called in fifo order, so before eio's handler */
801	X_THREAD_ATFORK (0, 0, atfork_child);
802	}	1057	}
803		1058
804	void	1059	void
		1060	reinit ()
		1061	PROTOTYPE:
		1062
		1063	void
805	max_poll_reqs (int nreqs)	1064	max_poll_reqs (unsigned int nreqs)
806	PROTOTYPE: $	1065	PROTOTYPE: $
807	CODE:	1066	CODE:
808	eio_set_max_poll_reqs (nreqs);	1067	eio_set_max_poll_reqs (nreqs);
809		1068
810	void	1069	void
…		…
812	PROTOTYPE: $	1071	PROTOTYPE: $
813	CODE:	1072	CODE:
814	eio_set_max_poll_time (nseconds);	1073	eio_set_max_poll_time (nseconds);
815		1074
816	void	1075	void
817	min_parallel (int nthreads)	1076	min_parallel (unsigned int nthreads)
818	PROTOTYPE: $	1077	PROTOTYPE: $
819	CODE:	1078	CODE:
820	eio_set_min_parallel (nthreads);	1079	eio_set_min_parallel (nthreads);
821		1080
822	void	1081	void
823	max_parallel (int nthreads)	1082	max_parallel (unsigned int nthreads)
824	PROTOTYPE: $	1083	PROTOTYPE: $
825	CODE:	1084	CODE:
826	eio_set_max_parallel (nthreads);	1085	eio_set_max_parallel (nthreads);
827		1086
828	void	1087	void
829	max_idle (int nthreads)	1088	max_idle (unsigned int nthreads)
830	PROTOTYPE: $	1089	PROTOTYPE: $
831	CODE:	1090	CODE:
832	eio_set_max_idle (nthreads);	1091	eio_set_max_idle (nthreads);
833		1092
834	void	1093	void
		1094	idle_timeout (unsigned int seconds)
		1095	PROTOTYPE: $
		1096	CODE:
		1097	eio_set_idle_timeout (seconds);
		1098
		1099	void
835	max_outstanding (int maxreqs)	1100	max_outstanding (unsigned int maxreqs)
836	PROTOTYPE: $	1101	PROTOTYPE: $
837	CODE:	1102	CODE:
838	max_outstanding = maxreqs;	1103	max_outstanding = maxreqs;
839		1104
840	void	1105	void
		1106	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1107	PPCODE:
		1108	{
		1109	dREQ;
		1110
		1111	req->type = EIO_WD_OPEN;
		1112	req_set_path1 (req, pathname);
		1113
		1114	REQ_SEND;
		1115	}
		1116
		1117	void
841	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1118	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
842	PROTOTYPE: $$$;$
843	PPCODE:	1119	PPCODE:
844	{	1120	{
845	dREQ;	1121	dREQ;
846		1122
847	req->type = EIO_OPEN;	1123	req->type = EIO_OPEN;
848	req->sv1 = newSVsv (pathname);	1124	req_set_path1 (req, pathname);
849	req->ptr1 = SvPVbyte_nolen (req->sv1);
850	req->int1 = flags;	1125	req->int1 = flags;
851	req->int2 = mode;	1126	req->int2 = mode;
852		1127
853	REQ_SEND;	1128	REQ_SEND;
854	}	1129	}
855		1130
856	void	1131	void
857	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
858	PROTOTYPE: $;$
859	ALIAS:	1133	ALIAS:
860	aio_fsync = EIO_FSYNC	1134	aio_fsync = EIO_FSYNC
861	aio_fdatasync = EIO_FDATASYNC	1135	aio_fdatasync = EIO_FDATASYNC
		1136	aio_syncfs = EIO_SYNCFS
862	PPCODE:	1137	PPCODE:
863	{	1138	{
864	int fd = s_fileno_croak (fh, 0);	1139	int fd = s_fileno_croak (fh, 0);
865	dREQ;	1140	dREQ;
866		1141
867	req->type = ix;	1142	req->type = ix;
868	req->sv1 = newSVsv (fh);	1143	req->sv1 = newSVsv (fh);
869	req->int1 = fd;	1144	req->int1 = fd;
870		1145
871	REQ_SEND (req);	1146	REQ_SEND;
872	}	1147	}
873		1148
874	void	1149	void
875	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
876	PROTOTYPE: $$$$;$
877	PPCODE:	1151	PPCODE:
878	{	1152	{
879	int fd = s_fileno_croak (fh, 0);	1153	int fd = s_fileno_croak (fh, 0);
880	dREQ;	1154	dREQ;
881		1155
…		…
884	req->int1 = fd;	1158	req->int1 = fd;
885	req->offs = offset;	1159	req->offs = offset;
886	req->size = nbytes;	1160	req->size = nbytes;
887	req->int2 = flags;	1161	req->int2 = flags;
888		1162
889	REQ_SEND (req);	1163	REQ_SEND;
890	}	1164	}
891		1165
892	void	1166	void
893	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
894	PROTOTYPE: $;$
895	PPCODE:	1168	PPCODE:
896	{	1169	{
897	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
898	int fd = s_fileno_croak (fh, 0);	1170	int fd = s_fileno_croak (fh, 0);
899	dREQ;	1171	dREQ;
900		1172
901	if (close_pipe < 0)	1173	req->type = EIO_FALLOCATE;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->int2 = mode;
		1177	req->offs = offset;
		1178	req->size = len;
		1179
		1180	REQ_SEND;
		1181	}
		1182
		1183	void
		1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1185	PPCODE:
		1186	{
		1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1188	int fd = s_fileno_croak (fh, 0);
		1189	dREQ;
		1190
		1191	if (expect_false (close_fd < 0))
902	{	1192	{
903	int pipefd [2];	1193	int pipefd [2];
904		1194
		1195	if (
		1196	#ifdef _WIN32
		1197	_pipe (pipefd, 1, _O_BINARY) < 0
		1198	#else
905	if (pipe (pipefd) < 0	1199	pipe (pipefd) < 0
906	|| close (pipefd [1]) < 0
907	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1200	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1201	#endif
		1202	|| close (pipefd [1]) < 0
		1203	)
908	abort (); /*D*/	1204	abort (); /*D*/
909		1205
910	close_pipe = pipefd [0];	1206	close_fd = pipefd [0];
911	}	1207	}
912		1208
913	req->type = EIO_DUP2;	1209	req->type = EIO_DUP2;
914	req->int1 = close_pipe;	1210	req->int1 = close_fd;
915	req->sv2 = newSVsv (fh);	1211	req->sv2 = newSVsv (fh);
916	req->int2 = fd;	1212	req->int2 = fd;
917		1213
918	REQ_SEND (req);	1214	REQ_SEND;
		1215	}
		1216
		1217	void
		1218	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1219	PPCODE:
		1220	{
		1221	STRLEN svlen;
		1222	int fd = s_fileno_croak (fh, 0);
		1223	dREQ;
		1224
		1225	req->type = EIO_SEEK;
		1226	req->sv1 = newSVsv (fh);
		1227	req->int1 = fd;
		1228	req->offs = SvVAL64 (offset);
		1229	req->int2 = whence;
		1230
		1231	REQ_SEND;
919	}	1232	}
920		1233
921	void	1234	void
922	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1235	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
923	ALIAS:	1236	ALIAS:
924	aio_read = EIO_READ	1237	aio_read = EIO_READ
925	aio_write = EIO_WRITE	1238	aio_write = EIO_WRITE
926	PROTOTYPE: $$$$$;$
927	PPCODE:	1239	PPCODE:
928	{	1240	{
929	STRLEN svlen;	1241	STRLEN svlen;
930	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1242	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
931	char *svptr = SvPVbyte (data, svlen);	1243	char *svptr = SvPVbyte (data, svlen);
…		…
971	REQ_SEND;	1283	REQ_SEND;
972	}	1284	}
973	}	1285	}
974		1286
975	void	1287	void
976	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
977	PROTOTYPE: $$;$	1289	ALIAS:
		1290	aio_readlink = EIO_READLINK
		1291	aio_realpath = EIO_REALPATH
978	PPCODE:	1292	PPCODE:
979	{	1293	{
980	SV *data;
981	dREQ;	1294	dREQ;
982		1295
983	req->type = EIO_READLINK;	1296	req->type = ix;
984	req->sv1 = newSVsv (path);	1297	req_set_path1 (req, pathname);
985	req->ptr1 = SvPVbyte_nolen (req->sv1);
986		1298
987	REQ_SEND;	1299	REQ_SEND;
988	}	1300	}
989		1301
990	void	1302	void
991	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1303	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
992	PROTOTYPE: $$$$;$
993	PPCODE:	1304	PPCODE:
994	{	1305	{
995	int ifd = s_fileno_croak (in_fh , 0);	1306	int ifd = s_fileno_croak (in_fh , 0);
996	int ofd = s_fileno_croak (out_fh, 1);	1307	int ofd = s_fileno_croak (out_fh, 1);
997	dREQ;	1308	dREQ;
…		…
1007	REQ_SEND;	1318	REQ_SEND;
1008	}	1319	}
1009		1320
1010	void	1321	void
1011	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1012	PROTOTYPE: $$$;$
1013	PPCODE:	1323	PPCODE:
1014	{	1324	{
1015	int fd = s_fileno_croak (fh, 0);	1325	int fd = s_fileno_croak (fh, 0);
1016	dREQ;	1326	dREQ;
1017		1327
…		…
1032	aio_statvfs = EIO_STATVFS	1342	aio_statvfs = EIO_STATVFS
1033	PPCODE:	1343	PPCODE:
1034	{	1344	{
1035	dREQ;	1345	dREQ;
1036		1346
1037	req->sv1 = newSVsv (fh_or_path);	1347	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1038
1039	if (SvPOK (req->sv1))
1040	{
1041	req->type = ix;
1042	req->ptr1 = SvPVbyte_nolen (req->sv1);
1043	}
1044	else
1045	{
1046	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1047	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1048	}
1049		1348
1050	REQ_SEND;	1349	REQ_SEND;
1051	}	1350	}
		1351
		1352	UV
		1353	major (UV dev)
		1354	ALIAS:
		1355	minor = 1
		1356	CODE:
		1357	RETVAL = ix ? major (dev) : minor (dev);
		1358	OUTPUT:
		1359	RETVAL
		1360
		1361	UV
		1362	makedev (UV maj, UV min)
		1363	CODE:
		1364	RETVAL = makedev (maj, min);
		1365	OUTPUT:
		1366	RETVAL
1052		1367
1053	void	1368	void
1054	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1369	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1055	PPCODE:	1370	PPCODE:
1056	{	1371	{
1057	dREQ;	1372	dREQ;
1058		1373
1059	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1060	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1375	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1061	req->sv1 = newSVsv (fh_or_path);	1376	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1062
1063	if (SvPOK (req->sv1))
1064	{
1065	req->type = EIO_UTIME;
1066	req->ptr1 = SvPVbyte_nolen (req->sv1);
1067	}
1068	else
1069	{
1070	req->type = EIO_FUTIME;
1071	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1072	}
1073		1377
1074	REQ_SEND;	1378	REQ_SEND;
1075	}	1379	}
1076		1380
1077	void	1381	void
1078	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1382	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1079	PPCODE:	1383	PPCODE:
1080	{	1384	{
1081	dREQ;	1385	dREQ;
1082		1386
1083	req->sv1 = newSVsv (fh_or_path);
1084	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1085		1388	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1086	if (SvPOK (req->sv1))
1087	{
1088	req->type = EIO_TRUNCATE;
1089	req->ptr1 = SvPVbyte_nolen (req->sv1);
1090	}
1091	else
1092	{
1093	req->type = EIO_FTRUNCATE;
1094	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1095	}
1096		1389
1097	REQ_SEND;	1390	REQ_SEND;
1098	}	1391	}
1099		1392
1100	void	1393	void
1101	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1394	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1102	ALIAS:
1103	aio_chmod = EIO_CHMOD
1104	aio_mkdir = EIO_MKDIR
1105	PPCODE:	1395	PPCODE:
1106	{	1396	{
1107	dREQ;	1397	dREQ;
1108		1398
1109	req->int2 = mode;	1399	req->int2 = mode;
1110	req->sv1 = newSVsv (fh_or_path);	1400	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1111
1112	if (SvPOK (req->sv1))
1113	{
1114	req->type = ix;
1115	req->ptr1 = SvPVbyte_nolen (req->sv1);
1116	}
1117	else
1118	{
1119	req->type = EIO_FCHMOD;
1120	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1121	}
1122		1401
1123	REQ_SEND;	1402	REQ_SEND;
1124	}	1403	}
1125		1404
1126	void	1405	void
…		…
1129	{	1408	{
1130	dREQ;	1409	dREQ;
1131		1410
1132	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1133	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1412	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1134	req->sv1 = newSVsv (fh_or_path);	1413	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1135
1136	if (SvPOK (req->sv1))
1137	{
1138	req->type = EIO_CHOWN;
1139	req->ptr1 = SvPVbyte_nolen (req->sv1);
1140	}
1141	else
1142	{
1143	req->type = EIO_FCHOWN;
1144	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1145	}
1146		1414
1147	REQ_SEND;	1415	REQ_SEND;
1148	}	1416	}
1149		1417
1150	void	1418	void
…		…
1152	PPCODE:	1420	PPCODE:
1153	{	1421	{
1154	dREQ;	1422	dREQ;
1155		1423
1156	req->type = EIO_READDIR;	1424	req->type = EIO_READDIR;
1157	req->sv1 = newSVsv (pathname);
1158	req->ptr1 = SvPVbyte_nolen (req->sv1);
1159	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1425	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1160		1426
1161	if (flags & EIO_READDIR_DENTS)	1427	if (flags & EIO_READDIR_DENTS)
1162	req->int1 |= EIO_READDIR_CUSTOM2;	1428	req->int1 |= EIO_READDIR_CUSTOM2;
1163		1429
		1430	req_set_path1 (req, pathname);
		1431
1164	REQ_SEND;	1432	REQ_SEND;
		1433	}
		1434
		1435	void
		1436	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1437	PPCODE:
		1438	{
		1439	dREQ;
		1440
		1441	req->type = EIO_MKDIR;
		1442	req->int2 = mode;
		1443	req_set_path1 (req, pathname);
		1444
		1445	REQ_SEND;
1165	}	1446	}
1166		1447
1167	void	1448	void
1168	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1169	ALIAS:	1450	ALIAS:
…		…
1173	PPCODE:	1454	PPCODE:
1174	{	1455	{
1175	dREQ;	1456	dREQ;
1176		1457
1177	req->type = ix;	1458	req->type = ix;
1178	req->sv1 = newSVsv (pathname);	1459	req_set_path1 (req, pathname);
1179	req->ptr1 = SvPVbyte_nolen (req->sv1);
1180		1460
1181	REQ_SEND;	1461	REQ_SEND;
1182	}	1462	}
1183		1463
1184	void	1464	void
…		…
1187	aio_link = EIO_LINK	1467	aio_link = EIO_LINK
1188	aio_symlink = EIO_SYMLINK	1468	aio_symlink = EIO_SYMLINK
1189	aio_rename = EIO_RENAME	1469	aio_rename = EIO_RENAME
1190	PPCODE:	1470	PPCODE:
1191	{	1471	{
		1472	eio_wd wd2 = 0;
1192	dREQ;	1473	dREQ;
1193		1474
1194	req->type = ix;	1475	req->type = ix;
1195	req->sv1 = newSVsv (oldpath);	1476	req_set_path1 (req, oldpath);
1196	req->ptr1 = SvPVbyte_nolen (req->sv1);	1477	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1197	req->sv2 = newSVsv (newpath);	1478	req->int3 = (long)wd2;
1198	req->ptr2 = SvPVbyte_nolen (req->sv2);
1199		1479
1200	REQ_SEND;	1480	REQ_SEND;
1201	}	1481	}
1202		1482
1203	void	1483	void
…		…
1205	PPCODE:	1485	PPCODE:
1206	{	1486	{
1207	dREQ;	1487	dREQ;
1208		1488
1209	req->type = EIO_MKNOD;	1489	req->type = EIO_MKNOD;
1210	req->sv1 = newSVsv (pathname);
1211	req->ptr1 = SvPVbyte_nolen (req->sv1);
1212	req->int2 = (mode_t)mode;	1490	req->int2 = (mode_t)mode;
1213	req->offs = dev;	1491	req->offs = dev;
		1492	req_set_path1 (req, pathname);
1214		1493
1215	REQ_SEND;	1494	REQ_SEND;
1216	}	1495	}
1217		1496
1218	void	1497	void
1219	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1220	ALIAS:	1499	ALIAS:
1221	aio_mtouch = EIO_MTOUCH	1500	aio_mtouch = EIO_MTOUCH
1222	aio_msync = EIO_MSYNC	1501	aio_msync = EIO_MSYNC
1223	PROTOTYPE: $$$$;$
1224	PPCODE:	1502	PPCODE:
1225	{	1503	{
1226	STRLEN svlen;	1504	STRLEN svlen;
		1505	char *svptr = SvPVbyte (data, svlen);
1227	UV len = SvUV (length);	1506	UV len = SvUV (length);
1228	char *svptr = SvPVbyte (data, svlen);
1229		1507
1230	if (offset < 0)	1508	if (offset < 0)
1231	offset += svlen;	1509	offset += svlen;
1232		1510
1233	if (offset < 0 || offset > svlen)	1511	if (offset < 0 || offset > svlen)
…		…
1238		1516
1239	{	1517	{
1240	dREQ;	1518	dREQ;
1241		1519
1242	req->type = ix;	1520	req->type = ix;
1243	req->size = len;
1244	req->sv2 = SvREFCNT_inc (data);	1521	req->sv2 = SvREFCNT_inc (data);
1245	req->ptr2 = (char *)svptr + offset;	1522	req->ptr2 = (char *)svptr + offset;
		1523	req->size = len;
1246	req->int1 = flags;	1524	req->int1 = flags;
1247		1525
1248	REQ_SEND;	1526	REQ_SEND;
1249	}	1527	}
1250	}	1528	}
1251		1529
1252	void	1530	void
		1531	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1532	PPCODE:
		1533	{
		1534	STRLEN svlen;
		1535	char *svptr = SvPVbyte (data, svlen);
		1536	UV len = SvUV (length);
		1537
		1538	if (offset < 0)
		1539	offset += svlen;
		1540
		1541	if (offset < 0 || offset > svlen)
		1542	croak ("offset outside of scalar");
		1543
		1544	if (!SvOK (length) || len + offset > svlen)
		1545	len = svlen - offset;
		1546
		1547	{
		1548	dREQ;
		1549
		1550	req->type = EIO_MLOCK;
		1551	req->sv2 = SvREFCNT_inc (data);
		1552	req->ptr2 = (char *)svptr + offset;
		1553	req->size = len;
		1554
		1555	REQ_SEND;
		1556	}
		1557	}
		1558
		1559	void
		1560	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1561	PPCODE:
		1562	{
		1563	dREQ;
		1564
		1565	req->type = EIO_MLOCKALL;
		1566	req->int1 = flags;
		1567
		1568	REQ_SEND;
		1569	}
		1570
		1571	void
1253	aio_busy (double delay, SV *callback=&PL_sv_undef)	1572	aio_busy (double delay, SV *callback=&PL_sv_undef)
1254	PPCODE:	1573	PPCODE:
1255	{	1574	{
1256	dREQ;	1575	dREQ;
1257		1576
…		…
1261	REQ_SEND;	1580	REQ_SEND;
1262	}	1581	}
1263		1582
1264	void	1583	void
1265	aio_group (SV *callback=&PL_sv_undef)	1584	aio_group (SV *callback=&PL_sv_undef)
1266	PROTOTYPE: ;$
1267	PPCODE:	1585	PPCODE:
1268	{	1586	{
1269	dREQ;	1587	dREQ;
1270		1588
1271	req->type = EIO_GROUP;	1589	req->type = EIO_GROUP;
…		…
1288	REQ_SEND;	1606	REQ_SEND;
1289	}	1607	}
1290		1608
1291	int	1609	int
1292	aioreq_pri (int pri = 0)	1610	aioreq_pri (int pri = 0)
1293	PROTOTYPE: ;$
1294	CODE:	1611	CODE:
1295	RETVAL = next_pri;	1612	RETVAL = next_pri;
1296	if (items > 0)	1613	if (items > 0)
1297	{	1614	{
1298	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1310	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1627	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1311	next_pri = nice;	1628	next_pri = nice;
1312		1629
1313	void	1630	void
1314	flush ()	1631	flush ()
1315	PROTOTYPE:
1316	CODE:	1632	CODE:
1317	while (eio_nreqs ())	1633	while (eio_nreqs ())
1318	{	1634	{
1319	poll_wait ();	1635	poll_wait ();
1320	poll_cb ();	1636	poll_cb ();
1321	}	1637	}
1322		1638
1323	int	1639	int
1324	poll()	1640	poll ()
1325	PROTOTYPE:
1326	CODE:	1641	CODE:
1327	poll_wait ();	1642	poll_wait ();
1328	RETVAL = poll_cb ();	1643	RETVAL = poll_cb ();
1329	OUTPUT:	1644	OUTPUT:
1330	RETVAL	1645	RETVAL
1331		1646
1332	int	1647	int
1333	poll_fileno()	1648	poll_fileno ()
1334	PROTOTYPE:
1335	CODE:	1649	CODE:
1336	RETVAL = s_epipe_fd (&respipe);	1650	RETVAL = s_epipe_fd (&respipe);
1337	OUTPUT:	1651	OUTPUT:
1338	RETVAL	1652	RETVAL
1339		1653
1340	int	1654	int
1341	poll_cb(...)	1655	poll_cb (...)
1342	PROTOTYPE:	1656	PROTOTYPE:
1343	CODE:	1657	CODE:
1344	RETVAL = poll_cb ();	1658	RETVAL = poll_cb ();
1345	OUTPUT:	1659	OUTPUT:
1346	RETVAL	1660	RETVAL
1347		1661
1348	void	1662	void
1349	poll_wait()	1663	poll_wait ()
1350	PROTOTYPE:
1351	CODE:	1664	CODE:
1352	poll_wait ();	1665	poll_wait ();
1353		1666
1354	int	1667	int
1355	nreqs()	1668	nreqs ()
1356	PROTOTYPE:
1357	CODE:	1669	CODE:
1358	RETVAL = eio_nreqs ();	1670	RETVAL = eio_nreqs ();
1359	OUTPUT:	1671	OUTPUT:
1360	RETVAL	1672	RETVAL
1361		1673
1362	int	1674	int
1363	nready()	1675	nready ()
1364	PROTOTYPE:
1365	CODE:	1676	CODE:
1366	RETVAL = eio_nready ();	1677	RETVAL = eio_nready ();
1367	OUTPUT:	1678	OUTPUT:
1368	RETVAL	1679	RETVAL
1369		1680
1370	int	1681	int
1371	npending()	1682	npending ()
1372	PROTOTYPE:
1373	CODE:	1683	CODE:
1374	RETVAL = eio_npending ();	1684	RETVAL = eio_npending ();
1375	OUTPUT:	1685	OUTPUT:
1376	RETVAL	1686	RETVAL
1377		1687
1378	int	1688	int
1379	nthreads()	1689	nthreads ()
1380	PROTOTYPE:
1381	CODE:	1690	CODE:
1382	RETVAL = eio_nthreads ();	1691	RETVAL = eio_nthreads ();
1383	OUTPUT:	1692	OUTPUT:
1384	RETVAL	1693	RETVAL
1385		1694
1386	int	1695	int
1387	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1696	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1388	PROTOTYPE: $$$$
1389	CODE:	1697	CODE:
1390	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1391	RETVAL = posix_fadvise (fh, offset, length, advice);	1698	RETVAL = posix_fadvise (fh, offset, length, advice);
1392	#else
1393	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1394	#endif
1395	OUTPUT:	1699	OUTPUT:
1396	RETVAL	1700	RETVAL
1397		1701
1398	ssize_t	1702	IV
1399	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1703	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1400	PROTOTYPE: $$$$
1401	CODE:	1704	CODE:
1402	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1403	OUTPUT:	1706	OUTPUT:
1404	RETVAL	1707	RETVAL
1405		1708
1406	void	1709	void
1407	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1408	PROTOTYPE: $$$$$;$
1409	PPCODE:	1711	PPCODE:
1410	sv_unmagic (scalar, MMAP_MAGIC);	1712	sv_unmagic (scalar, MMAP_MAGIC);
1411	{	1713	{
1412	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1413	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1436	XSRETURN_YES;	1738	XSRETURN_YES;
1437	}	1739	}
1438		1740
1439	void	1741	void
1440	munmap (SV *scalar)	1742	munmap (SV *scalar)
1441	PROTOTYPE: $
1442	CODE:	1743	CODE:
1443	sv_unmagic (scalar, MMAP_MAGIC);	1744	sv_unmagic (scalar, MMAP_MAGIC);
1444		1745
1445	int	1746	int
1446	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1447	PROTOTYPE: $$$$	1748	ALIAS:
		1749	mprotect = 1
1448	CODE:	1750	CODE:
1449	{	1751	{
1450	char *addr = SvPV_nolen (scalar) + offset;	1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
1451		1755
1452	if (!SvOK (ST (2)))	1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
1453	length = SvCUR (scalar) - offset;	1763	len = svlen - offset;
1454		1764
1455	if (addr >= SvEND (scalar) || length <= 0)	1765	addr = (void *)(((intptr_t)addr) + offset);
1456	XSRETURN_EMPTY;	1766	eio_page_align (&addr, &len);
1457		1767
1458	#if _XOPEN_SOURCE >= 600 && !NO_MADVISE	1768	switch (ix)
		1769	{
1459	RETVAL = posix_madvise (addr, length, advice);	1770	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1460	#else	1771	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1461	RETVAL = errno = ENOSYS; /* yes, this is actually correct */	1772	}
1462	#endif
1463	}	1773	}
1464	OUTPUT:	1774	OUTPUT:
1465	RETVAL	1775	RETVAL
1466		1776
1467	int	1777	int
1468	mlockall (int flags)	1778	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1469	PROTOTYPE: $
1470	CODE:	1779	CODE:
		1780	{
		1781	STRLEN svlen;
		1782	void *addr = SvPVbyte (scalar, svlen);
		1783	size_t len = SvUV (length);
		1784
		1785	if (offset < 0)
		1786	offset += svlen;
		1787
		1788	if (offset < 0 || offset > svlen)
		1789	croak ("offset outside of scalar");
		1790
		1791	if (!SvOK (length) || len + offset > svlen)
		1792	len = svlen - offset;
		1793
		1794	addr = (void *)(((intptr_t)addr) + offset);
		1795	eio_page_align (&addr, &len);
1471	#if _POSIX_MEMLOCK	1796	#if _POSIX_MEMLOCK_RANGE
1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1797	RETVAL = munlock (addr, len);
1473	extern int mallopt (int, int);
1474	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1475	#endif
1476	mlockall (flags);
1477	#else	1798	#else
1478	RETVAL = -1;	1799	RETVAL = ((errno = ENOSYS), -1);
1479	errno = ENOSYS;
1480	#endif	1800	#endif
		1801	}
1481	OUTPUT:	1802	OUTPUT:
1482	RETVAL	1803	RETVAL
1483		1804
1484	int	1805	int
1485	munlockall ()	1806	munlockall ()
1486	PROTOTYPE:
1487	CODE:	1807	CODE:
1488	#if _POSIX_MEMLOCK	1808	#if _POSIX_MEMLOCK
1489	munlockall ();	1809	munlockall ();
1490	#else	1810	#else
1491	RETVAL = -1;	1811	RETVAL = -1;
…		…
1499	SvREFCNT_dec (on_next_submit);	1819	SvREFCNT_dec (on_next_submit);
1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1501		1821
1502	PROTOTYPES: DISABLE	1822	PROTOTYPES: DISABLE
1503		1823
		1824	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1825
		1826	BOOT:
		1827	{
		1828	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1829	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1830	}
		1831
		1832	void
		1833	DESTROY (SV *self)
		1834	CODE:
		1835	{
		1836	aio_wd wd = SvAIO_WD (self);
		1837	#if HAVE_AT
		1838	{
		1839	SV *callback = &PL_sv_undef;
		1840	dREQ; /* clobbers next_pri :/ */
		1841	next_pri = req->pri; /* restore next_pri */
		1842	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1843	req->type = EIO_WD_CLOSE;
		1844	req->wd = wd;
		1845	REQ_SEND;
		1846	}
		1847	#else
		1848	eio_wd_close_sync (wd);
		1849	#endif
		1850	}
		1851
1504	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1852	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1505		1853
1506	void	1854	void
1507	cancel (aio_req_ornot req)	1855	cancel (aio_req_ornot req)
1508	CODE:	1856	CODE:

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