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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.170 by root, Wed Aug 4 16:09:36 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
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	196	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	198	#endif
148		199
149	#ifndef POSIX_MADV_NORMAL	200	#ifndef POSIX_MADV_NORMAL
150	# define POSIX_MADV_NORMAL 0	201	# define POSIX_MADV_NORMAL 0
151	# define NO_MADVISE 1
152	#endif	202	#endif
153	#ifndef POSIX_MADV_SEQUENTIAL	203	#ifndef POSIX_MADV_SEQUENTIAL
154	# define POSIX_MADV_SEQUENTIAL 0	204	# define POSIX_MADV_SEQUENTIAL 0
155	#endif	205	#endif
156	#ifndef POSIX_MADV_RANDOM	206	#ifndef POSIX_MADV_RANDOM
…		…
161	#endif	211	#endif
162	#ifndef POSIX_MADV_DONTNEED	212	#ifndef POSIX_MADV_DONTNEED
163	# define POSIX_MADV_DONTNEED 0	213	# define POSIX_MADV_DONTNEED 0
164	#endif	214	#endif
165		215
166	#if _XOPEN_SOURCE < 600 || NO_MADVISE	216	#if !HAVE_POSIX_MADVISE
167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168	#endif	218	#endif
169		219
		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
170	#ifndef ST_NODEV	239	#ifndef ST_NODEV
171	# define ST_NODEV 0	240	# define ST_NODEV 0
172	#endif	241	#endif
173	#ifndef ST_NOEXEC	242	#ifndef ST_NOEXEC
174	# define ST_NOEXEC 0	243	# define ST_NOEXEC 0
…		…
196	#endif	265	#endif
197	#ifndef ST_RELATIME	266	#ifndef ST_RELATIME
198	# define ST_RELATIME 0	267	# define ST_RELATIME 0
199	#endif	268	#endif
200		269
201	#ifndef MCL_CURRENT	270	#ifndef S_IFIFO
202	# define MCL_CURRENT 0	271	# define S_IFIFO 0
203	#endif	272	#endif
204	#ifndef MCL_FUTURE	273	#ifndef S_IFCHR
205	# 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
206	#endif	293	#endif
207		294
208	#ifndef MAP_ANONYMOUS	295	#ifndef MAP_ANONYMOUS
209	# ifdef MAP_ANON	296	# ifdef MAP_ANON
210	# define MAP_ANONYMOUS MAP_ANON	297	# define MAP_ANONYMOUS MAP_ANON
…		…
226	#endif	313	#endif
227	#ifndef MAP_NONBLOCK	314	#ifndef MAP_NONBLOCK
228	# define MAP_NONBLOCK 0	315	# define MAP_NONBLOCK 0
229	#endif	316	#endif
230		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
231	#ifndef PAGESIZE	328	#ifndef PAGESIZE
232	# define PAGESIZE sysconf (_SC_PAGESIZE)	329	# define PAGESIZE sysconf (_SC_PAGESIZE)
233	#endif	330	#endif
234
235	static int req_invoke (eio_req *req);
236	#define EIO_FINISH(req) req_invoke (req)
237	static void req_destroy (eio_req *grp);
238	#define EIO_DESTROY(req) req_destroy (req)
239		331
240	enum {	332	enum {
241	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
242	};	334	};
243		335
244	#include "libeio/eio.c"
245
246	typedef eio_req *aio_req;	336	typedef eio_req *aio_req;
247	typedef eio_req *aio_req_ornot;	337	typedef eio_req *aio_req_ornot;
		338	typedef eio_wd aio_wd;
248		339
249	static SV *on_next_submit;	340	static SV *on_next_submit;
250	static int next_pri = EIO_PRI_DEFAULT;	341	static int next_pri = EIO_PRI_DEFAULT;
251	static int max_outstanding;	342	static int max_outstanding;
252		343
253	static s_epipe respipe;	344	static s_epipe respipe;
254		345
255	static void req_destroy (aio_req req);	346	static void req_destroy (aio_req req);
256	static void req_cancel (aio_req req);	347	static void req_cancel (aio_req req);
257		348
258	static void want_poll (void)	349	static void
		350	want_poll (void)
259	{	351	{
260	/* write a dummy byte to the pipe so fh becomes ready */	352	/* write a dummy byte to the pipe so fh becomes ready */
261	s_epipe_signal (&respipe);	353	s_epipe_signal (&respipe);
262	}	354	}
263		355
264	static void done_poll (void)	356	static void
		357	done_poll (void)
265	{	358	{
266	/* read any signals sent by the worker threads */	359	/* read any signals sent by the worker threads */
267	s_epipe_drain (&respipe);	360	s_epipe_drain (&respipe);
268	}	361	}
269		362
270	/* must be called at most once */	363	/* must be called at most once */
		364	static SV *
271	static SV *req_sv (aio_req req, HV *stash)	365	req_sv (aio_req req, HV *stash)
272	{	366	{
273	if (!req->self)	367	if (!req->self)
274	{	368	{
275	req->self = (SV *)newHV ();	369	req->self = (SV *)newHV ();
276	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	370	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
277	}	371	}
278		372
279	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	373	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
280	}	374	}
281		375
282	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)
283	{	384	{
284	MAGIC *mg;	385	MAGIC *mg;
285		386
286	if (!SvROK (sv)	387	if (!SvROK (sv)
		388	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
287	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	389	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
288	&& SvSTASH (SvRV (sv)) != aio_req_stash	390	&& SvSTASH (SvRV (sv)) != aio_req_stash
289	&& !sv_derived_from (sv, "IO::AIO::REQ")))	391	&& !sv_derived_from (sv, "IO::AIO::REQ")))
290	croak ("object of class IO::AIO::REQ expected");	392	croak ("object of class IO::AIO::REQ expected");
291		393
292	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	394	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
293		395
294	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
295	}	397	}
296		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
297	static void aio_grp_feed (aio_req grp)	411	aio_grp_feed (aio_req grp)
298	{	412	{
299	if (grp->sv2 && SvOK (grp->sv2))	413	if (grp->sv2 && SvOK (grp->sv2))
300	{	414	{
301	dSP;	415	dSP;
302		416
…		…
310	FREETMPS;	424	FREETMPS;
311	LEAVE;	425	LEAVE;
312	}	426	}
313	}	427	}
314		428
		429	static void
315	static void req_submit (eio_req *req)	430	req_submit (eio_req *req)
316	{	431	{
317	eio_submit (req);	432	eio_submit (req);
318		433
319	if (expect_false (on_next_submit))	434	if (expect_false (on_next_submit))
320	{	435	{
…		…
327	PUTBACK;	442	PUTBACK;
328	call_sv (cb, G_DISCARD | G_EVAL);	443	call_sv (cb, G_DISCARD | G_EVAL);
329	}	444	}
330	}	445	}
331		446
		447	static int
332	static int req_invoke (eio_req *req)	448	req_invoke (eio_req *req)
333	{	449	{
334	if (req->flags & FLAG_SV2_RO_OFF)	450	if (req->flags & FLAG_SV2_RO_OFF)
335	SvREADONLY_off (req->sv2);	451	SvREADONLY_off (req->sv2);
336		452
337	if (!EIO_CANCELLED (req) && req->callback)	453	if (!EIO_CANCELLED (req) && req->callback)
…		…
348	/* do not recreate the result IV from scratch each time */	464	/* do not recreate the result IV from scratch each time */
349	if (expect_true (sv_result_cache))	465	if (expect_true (sv_result_cache))
350	{	466	{
351	sv_result = sv_result_cache; sv_result_cache = 0;	467	sv_result = sv_result_cache; sv_result_cache = 0;
352	SvIV_set (sv_result, req->result);	468	SvIV_set (sv_result, req->result);
		469	SvIOK_only (sv_result);
353	}	470	}
354	else	471	else
355	{	472	{
356	sv_result = newSViv (req->result);	473	sv_result = newSViv (req->result);
357	SvREADONLY_on (sv_result);	474	SvREADONLY_on (sv_result);
358	}	475	}
359		476
360	switch (req->type)	477	switch (req->type)
361	{	478	{
		479	case EIO_WD_OPEN:
		480	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		481	break;
		482
362	case EIO_READDIR:	483	case EIO_READDIR:
363	{	484	{
364	SV *rv = &PL_sv_undef;	485	SV *rv = &PL_sv_undef;
365		486
366	if (req->result >= 0)	487	if (req->result >= 0)
…		…
454	case EIO_STATVFS:	575	case EIO_STATVFS:
455	case EIO_FSTATVFS:	576	case EIO_FSTATVFS:
456	{	577	{
457	SV *rv = &PL_sv_undef;	578	SV *rv = &PL_sv_undef;
458		579
		580	#ifndef _WIN32
459	if (req->result >= 0)	581	if (req->result >= 0)
460	{	582	{
461	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
462	HV *hv = newHV ();	584	HV *hv = newHV ();
463		585
…		…
473	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);
474	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);
475	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);
476	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);
477	}	599	}
		600	#endif
478		601
479	PUSHs (rv);	602	PUSHs (rv);
480	}	603	}
481		604
482	break;	605	break;
…		…
498	case EIO_NOP:	621	case EIO_NOP:
499	case EIO_BUSY:	622	case EIO_BUSY:
500	break;	623	break;
501		624
502	case EIO_READLINK:	625	case EIO_READLINK:
		626	case EIO_REALPATH:
503	if (req->result > 0)	627	if (req->result > 0)
504	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	628	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
505	break;	629	break;
506		630
507	case EIO_STAT:	631	case EIO_STAT:
508	case EIO_LSTAT:	632	case EIO_LSTAT:
509	case EIO_FSTAT:	633	case EIO_FSTAT:
510	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	634	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		635
511	PL_laststatval = req->result;	636	if (!(PL_laststatval = req->result))
		637	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
512	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	638	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		639
513	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)));
514	break;	645	break;
515		646
516	case EIO_READ:	647	case EIO_READ:
517	{	648	{
518	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));
…		…
521	SvSETMAGIC (req->sv2);	652	SvSETMAGIC (req->sv2);
522	PUSHs (sv_result);	653	PUSHs (sv_result);
523	}	654	}
524	break;	655	break;
525		656
526	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 */
527	if (req->result > 0)	658	if (req->result > 0)
528	SvIV_set (sv_result, 0);	659	SvIV_set (sv_result, 0);
529	/* FALLTHROUGH */	660	/* FALLTHROUGH */
530		661
531	default:	662	default:
…		…
551	}	682	}
552		683
553	return !!SvTRUE (ERRSV);	684	return !!SvTRUE (ERRSV);
554	}	685	}
555		686
		687	static void
556	static void req_destroy (aio_req req)	688	req_destroy (aio_req req)
557	{	689	{
558	if (req->self)	690	if (req->self)
559	{	691	{
560	sv_unmagic (req->self, PERL_MAGIC_ext);	692	sv_unmagic (req->self, PERL_MAGIC_ext);
561	SvREFCNT_dec (req->self);	693	SvREFCNT_dec (req->self);
562	}	694	}
563		695
564	SvREFCNT_dec (req->sv1);	696	SvREFCNT_dec (req->sv1);
565	SvREFCNT_dec (req->sv2);	697	SvREFCNT_dec (req->sv2);
		698	SvREFCNT_dec (req->sv3);
		699	SvREFCNT_dec (req->sv4);
566	SvREFCNT_dec (req->callback);	700	SvREFCNT_dec (req->callback);
567		701
568	Safefree (req);	702	free (req);
569	}	703	}
570		704
		705	static void
571	static void req_cancel_subs (aio_req grp)	706	req_cancel_subs (aio_req grp)
572	{	707	{
573	aio_req sub;
574
575	if (grp->type != EIO_GROUP)	708	if (grp->type != EIO_GROUP)
576	return;	709	return;
577		710
578	SvREFCNT_dec (grp->sv2);	711	SvREFCNT_dec (grp->sv2);
579	grp->sv2 = 0;	712	grp->sv2 = 0;
580		713
581	eio_grp_cancel (grp);	714	eio_grp_cancel (grp);
582	}	715	}
583		716
584	static void	717	static void ecb_cold
585	create_respipe (void)	718	create_respipe (void)
586	{	719	{
587	if (s_epipe_renew (&respipe))	720	if (s_epipe_renew (&respipe))
588	croak ("IO::AIO: unable to initialize result pipe");	721	croak ("IO::AIO: unable to initialize result pipe");
589	}	722	}
590		723
591	static void poll_wait (void)	724	static void
		725	poll_wait (void)
592	{	726	{
593	while (eio_nreqs ())	727	while (eio_nreqs ())
594	{	728	{
595	int size;	729	int size;
596		730
…		…
605		739
606	s_epipe_wait (&respipe);	740	s_epipe_wait (&respipe);
607	}	741	}
608	}	742	}
609		743
610	static int poll_cb (void)	744	static int
		745	poll_cb (void)
611	{	746	{
612	for (;;)	747	for (;;)
613	{	748	{
614	int res = eio_poll ();	749	int res = eio_poll ();
615		750
…		…
621		756
622	poll_wait ();	757	poll_wait ();
623	}	758	}
624	}	759	}
625		760
626	static void atfork_child (void)	761	static void ecb_cold
		762	reinit (void)
627	{	763	{
628	create_respipe ();	764	create_respipe ();
		765
		766	if (eio_init (want_poll, done_poll) < 0)
		767	croak ("IO::AIO: unable to initialise eio library");
629	}	768	}
630		769
631	/*****************************************************************************/	770	/*****************************************************************************/
632		771
633	#if !_POSIX_MAPPED_FILES	772	#if !_POSIX_MAPPED_FILES
634	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	773	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
635	# define munmap(addr,length) (errno = ENOSYS, -1)	774	# define munmap(addr,length) (errno = ENOSYS, -1)
636	#endif	775	#endif
637		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
638	#define MMAP_MAGIC PERL_MAGIC_ext	786	#define MMAP_MAGIC PERL_MAGIC_ext
639		787
640	static int	788	static int ecb_cold
641	mmap_free (pTHX_ SV *sv, MAGIC *mg)	789	mmap_free (pTHX_ SV *sv, MAGIC *mg)
642	{	790	{
643	int old_errno = errno;	791	int old_errno = errno;
644	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	792	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
645	errno = old_errno;	793	errno = old_errno;
…		…
669	{	817	{
670	SvGETMAGIC (cb_sv);	818	SvGETMAGIC (cb_sv);
671	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	819	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
672	}	820	}
673		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
674	#define dREQ \	842	#define dREQ \
675	SV *cb_cv; \	843	aio_req req = dreq (callback); \
676	aio_req req; \
677	int req_pri = next_pri; \
678	next_pri = EIO_PRI_DEFAULT; \
679	\
680	cb_cv = get_cb (callback); \
681	\
682	Newz (0, req, 1, eio_req); \
683	if (!req) \
684	croak ("out of memory during eio_req allocation"); \
685	\
686	req->callback = SvREFCNT_inc (cb_cv); \
687	req->pri = req_pri
688		844
689	#define REQ_SEND \	845	#define REQ_SEND \
690	PUTBACK; \	846	PUTBACK; \
691	req_submit (req); \	847	req_submit (req); \
692	SPAGAIN; \	848	SPAGAIN; \
693	\	849	\
694	if (GIMME_V != G_VOID) \	850	if (GIMME_V != G_VOID) \
695	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;
696		918
697	MODULE = IO::AIO PACKAGE = IO::AIO	919	MODULE = IO::AIO PACKAGE = IO::AIO
698		920
699	PROTOTYPES: ENABLE	921	PROTOTYPES: ENABLE
700		922
…		…
714	const_iv (O_RDWR)	936	const_iv (O_RDWR)
715	const_iv (O_CREAT)	937	const_iv (O_CREAT)
716	const_iv (O_TRUNC)	938	const_iv (O_TRUNC)
717	const_iv (O_EXCL)	939	const_iv (O_EXCL)
718	const_iv (O_APPEND)	940	const_iv (O_APPEND)
719	#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
720	const_iv (S_IFIFO)	958	const_iv (S_IFIFO)
721	#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
722	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
723	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
724	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
725	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
726	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
743	const_iv (ST_IMMUTABLE)	989	const_iv (ST_IMMUTABLE)
744	const_iv (ST_NOATIME)	990	const_iv (ST_NOATIME)
745	const_iv (ST_NODIRATIME)	991	const_iv (ST_NODIRATIME)
746	const_iv (ST_RELATIME)	992	const_iv (ST_RELATIME)
747		993
		994	const_iv (PROT_NONE)
748	const_iv (PROT_EXEC)	995	const_iv (PROT_EXEC)
749	const_iv (PROT_NONE)
750	const_iv (PROT_READ)	996	const_iv (PROT_READ)
751	const_iv (PROT_WRITE)	997	const_iv (PROT_WRITE)
752		998
753	/*const_iv (MAP_FIXED)*/	999	/*const_iv (MAP_FIXED)*/
754	const_iv (MAP_PRIVATE)	1000	const_iv (MAP_PRIVATE)
…		…
760	const_iv (MAP_LOCKED)	1006	const_iv (MAP_LOCKED)
761	const_iv (MAP_NORESERVE)	1007	const_iv (MAP_NORESERVE)
762	const_iv (MAP_POPULATE)	1008	const_iv (MAP_POPULATE)
763	const_iv (MAP_NONBLOCK)	1009	const_iv (MAP_NONBLOCK)
764		1010
		1011	const_eio (SEEK_SET)
		1012	const_eio (SEEK_CUR)
		1013	const_eio (SEEK_END)
		1014
765	const_iv (MCL_FUTURE)	1015	const_eio (MCL_FUTURE)
766	const_iv (MCL_CURRENT)	1016	const_eio (MCL_CURRENT)
767		1017
768	const_eio (MS_ASYNC)	1018	const_eio (MS_ASYNC)
769	const_eio (MS_INVALIDATE)	1019	const_eio (MS_INVALIDATE)
770	const_eio (MS_SYNC)	1020	const_eio (MS_SYNC)
771		1021
772	const_eio (MT_MODIFY)	1022	const_eio (MT_MODIFY)
773		1023
774	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
775	const_eio (SYNC_FILE_RANGE_WRITE)	1025	const_eio (SYNC_FILE_RANGE_WRITE)
776	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1027
		1028	const_eio (FALLOC_FL_KEEP_SIZE)
777		1029
778	const_eio (READDIR_DENTS)	1030	const_eio (READDIR_DENTS)
779	const_eio (READDIR_DIRS_FIRST)	1031	const_eio (READDIR_DIRS_FIRST)
780	const_eio (READDIR_STAT_ORDER)	1032	const_eio (READDIR_STAT_ORDER)
781	const_eio (READDIR_FOUND_UNKNOWN)	1033	const_eio (READDIR_FOUND_UNKNOWN)
…		…
792	};	1044	};
793		1045
794	aio_stash = gv_stashpv ("IO::AIO" , 1);	1046	aio_stash = gv_stashpv ("IO::AIO" , 1);
795	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1047	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
796	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);
797		1050
798	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--)
799	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1052	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
800		1053
801	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1054	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
802		1055
803	create_respipe ();	1056	reinit ();
804
805	if (eio_init (want_poll, done_poll) < 0)
806	croak ("IO::AIO: unable to initialise eio library");
807
808	/* atfork child called in fifo order, so before eio's handler */
809	X_THREAD_ATFORK (0, 0, atfork_child);
810	}	1057	}
811		1058
812	void	1059	void
		1060	reinit ()
		1061	PROTOTYPE:
		1062
		1063	void
813	max_poll_reqs (int nreqs)	1064	max_poll_reqs (unsigned int nreqs)
814	PROTOTYPE: $	1065	PROTOTYPE: $
815	CODE:	1066	CODE:
816	eio_set_max_poll_reqs (nreqs);	1067	eio_set_max_poll_reqs (nreqs);
817		1068
818	void	1069	void
…		…
820	PROTOTYPE: $	1071	PROTOTYPE: $
821	CODE:	1072	CODE:
822	eio_set_max_poll_time (nseconds);	1073	eio_set_max_poll_time (nseconds);
823		1074
824	void	1075	void
825	min_parallel (int nthreads)	1076	min_parallel (unsigned int nthreads)
826	PROTOTYPE: $	1077	PROTOTYPE: $
827	CODE:	1078	CODE:
828	eio_set_min_parallel (nthreads);	1079	eio_set_min_parallel (nthreads);
829		1080
830	void	1081	void
831	max_parallel (int nthreads)	1082	max_parallel (unsigned int nthreads)
832	PROTOTYPE: $	1083	PROTOTYPE: $
833	CODE:	1084	CODE:
834	eio_set_max_parallel (nthreads);	1085	eio_set_max_parallel (nthreads);
835		1086
836	void	1087	void
837	max_idle (int nthreads)	1088	max_idle (unsigned int nthreads)
838	PROTOTYPE: $	1089	PROTOTYPE: $
839	CODE:	1090	CODE:
840	eio_set_max_idle (nthreads);	1091	eio_set_max_idle (nthreads);
841		1092
842	void	1093	void
		1094	idle_timeout (unsigned int seconds)
		1095	PROTOTYPE: $
		1096	CODE:
		1097	eio_set_idle_timeout (seconds);
		1098
		1099	void
843	max_outstanding (int maxreqs)	1100	max_outstanding (unsigned int maxreqs)
844	PROTOTYPE: $	1101	PROTOTYPE: $
845	CODE:	1102	CODE:
846	max_outstanding = maxreqs;	1103	max_outstanding = maxreqs;
847		1104
848	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
849	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)
850	PROTOTYPE: $$$;$
851	PPCODE:	1119	PPCODE:
852	{	1120	{
853	dREQ;	1121	dREQ;
854		1122
855	req->type = EIO_OPEN;	1123	req->type = EIO_OPEN;
856	req->sv1 = newSVsv (pathname);	1124	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858	req->int1 = flags;	1125	req->int1 = flags;
859	req->int2 = mode;	1126	req->int2 = mode;
860		1127
861	REQ_SEND;	1128	REQ_SEND;
862	}	1129	}
863		1130
864	void	1131	void
865	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
866	PROTOTYPE: $;$
867	ALIAS:	1133	ALIAS:
868	aio_fsync = EIO_FSYNC	1134	aio_fsync = EIO_FSYNC
869	aio_fdatasync = EIO_FDATASYNC	1135	aio_fdatasync = EIO_FDATASYNC
		1136	aio_syncfs = EIO_SYNCFS
870	PPCODE:	1137	PPCODE:
871	{	1138	{
872	int fd = s_fileno_croak (fh, 0);	1139	int fd = s_fileno_croak (fh, 0);
873	dREQ;	1140	dREQ;
874		1141
875	req->type = ix;	1142	req->type = ix;
876	req->sv1 = newSVsv (fh);	1143	req->sv1 = newSVsv (fh);
877	req->int1 = fd;	1144	req->int1 = fd;
878		1145
879	REQ_SEND (req);	1146	REQ_SEND;
880	}	1147	}
881		1148
882	void	1149	void
883	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$$;$
885	PPCODE:	1151	PPCODE:
886	{	1152	{
887	int fd = s_fileno_croak (fh, 0);	1153	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1154	dREQ;
889		1155
…		…
892	req->int1 = fd;	1158	req->int1 = fd;
893	req->offs = offset;	1159	req->offs = offset;
894	req->size = nbytes;	1160	req->size = nbytes;
895	req->int2 = flags;	1161	req->int2 = flags;
896		1162
897	REQ_SEND (req);	1163	REQ_SEND;
898	}	1164	}
899		1165
900	void	1166	void
901	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)
902	PROTOTYPE: $;$
903	PPCODE:	1168	PPCODE:
904	{	1169	{
905	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
906	int fd = s_fileno_croak (fh, 0);	1170	int fd = s_fileno_croak (fh, 0);
907	dREQ;	1171	dREQ;
908		1172
909	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))
910	{	1192	{
911	int pipefd [2];	1193	int pipefd [2];
912		1194
		1195	if (
		1196	#ifdef _WIN32
		1197	_pipe (pipefd, 1, _O_BINARY) < 0
		1198	#else
913	if (pipe (pipefd) < 0	1199	pipe (pipefd) < 0
914	|| close (pipefd [1]) < 0
915	|| 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	)
916	abort (); /*D*/	1204	abort (); /*D*/
917		1205
918	close_pipe = pipefd [0];	1206	close_fd = pipefd [0];
919	}	1207	}
920		1208
921	req->type = EIO_DUP2;	1209	req->type = EIO_DUP2;
922	req->int1 = close_pipe;	1210	req->int1 = close_fd;
923	req->sv2 = newSVsv (fh);	1211	req->sv2 = newSVsv (fh);
924	req->int2 = fd;	1212	req->int2 = fd;
925		1213
926	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;
927	}	1232	}
928		1233
929	void	1234	void
930	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)
931	ALIAS:	1236	ALIAS:
932	aio_read = EIO_READ	1237	aio_read = EIO_READ
933	aio_write = EIO_WRITE	1238	aio_write = EIO_WRITE
934	PROTOTYPE: $$$$$;$
935	PPCODE:	1239	PPCODE:
936	{	1240	{
937	STRLEN svlen;	1241	STRLEN svlen;
938	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1242	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
939	char *svptr = SvPVbyte (data, svlen);	1243	char *svptr = SvPVbyte (data, svlen);
…		…
979	REQ_SEND;	1283	REQ_SEND;
980	}	1284	}
981	}	1285	}
982		1286
983	void	1287	void
984	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
985	PROTOTYPE: $$;$	1289	ALIAS:
		1290	aio_readlink = EIO_READLINK
		1291	aio_realpath = EIO_REALPATH
986	PPCODE:	1292	PPCODE:
987	{	1293	{
988	SV *data;
989	dREQ;	1294	dREQ;
990		1295
991	req->type = EIO_READLINK;	1296	req->type = ix;
992	req->sv1 = newSVsv (path);	1297	req_set_path1 (req, pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994		1298
995	REQ_SEND;	1299	REQ_SEND;
996	}	1300	}
997		1301
998	void	1302	void
999	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)
1000	PROTOTYPE: $$$$;$
1001	PPCODE:	1304	PPCODE:
1002	{	1305	{
1003	int ifd = s_fileno_croak (in_fh , 0);	1306	int ifd = s_fileno_croak (in_fh , 0);
1004	int ofd = s_fileno_croak (out_fh, 1);	1307	int ofd = s_fileno_croak (out_fh, 1);
1005	dREQ;	1308	dREQ;
…		…
1015	REQ_SEND;	1318	REQ_SEND;
1016	}	1319	}
1017		1320
1018	void	1321	void
1019	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1020	PROTOTYPE: $$$;$
1021	PPCODE:	1323	PPCODE:
1022	{	1324	{
1023	int fd = s_fileno_croak (fh, 0);	1325	int fd = s_fileno_croak (fh, 0);
1024	dREQ;	1326	dREQ;
1025		1327
…		…
1040	aio_statvfs = EIO_STATVFS	1342	aio_statvfs = EIO_STATVFS
1041	PPCODE:	1343	PPCODE:
1042	{	1344	{
1043	dREQ;	1345	dREQ;
1044		1346
1045	req->sv1 = newSVsv (fh_or_path);	1347	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1046
1047	if (SvPOK (req->sv1))
1048	{
1049	req->type = ix;
1050	req->ptr1 = SvPVbyte_nolen (req->sv1);
1051	}
1052	else
1053	{
1054	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1055	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1056	}
1057		1348
1058	REQ_SEND;	1349	REQ_SEND;
1059	}	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
1060		1367
1061	void	1368	void
1062	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)
1063	PPCODE:	1370	PPCODE:
1064	{	1371	{
1065	dREQ;	1372	dREQ;
1066		1373
1067	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1068	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1375	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1069	req->sv1 = newSVsv (fh_or_path);	1376	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1070
1071	if (SvPOK (req->sv1))
1072	{
1073	req->type = EIO_UTIME;
1074	req->ptr1 = SvPVbyte_nolen (req->sv1);
1075	}
1076	else
1077	{
1078	req->type = EIO_FUTIME;
1079	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1080	}
1081		1377
1082	REQ_SEND;	1378	REQ_SEND;
1083	}	1379	}
1084		1380
1085	void	1381	void
1086	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)
1087	PPCODE:	1383	PPCODE:
1088	{	1384	{
1089	dREQ;	1385	dREQ;
1090		1386
1091	req->sv1 = newSVsv (fh_or_path);
1092	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1093		1388	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1094	if (SvPOK (req->sv1))
1095	{
1096	req->type = EIO_TRUNCATE;
1097	req->ptr1 = SvPVbyte_nolen (req->sv1);
1098	}
1099	else
1100	{
1101	req->type = EIO_FTRUNCATE;
1102	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1103	}
1104		1389
1105	REQ_SEND;	1390	REQ_SEND;
1106	}	1391	}
1107		1392
1108	void	1393	void
1109	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)
1110	ALIAS:
1111	aio_chmod = EIO_CHMOD
1112	aio_mkdir = EIO_MKDIR
1113	PPCODE:	1395	PPCODE:
1114	{	1396	{
1115	dREQ;	1397	dREQ;
1116		1398
1117	req->int2 = mode;	1399	req->int2 = mode;
1118	req->sv1 = newSVsv (fh_or_path);	1400	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1119
1120	if (SvPOK (req->sv1))
1121	{
1122	req->type = ix;
1123	req->ptr1 = SvPVbyte_nolen (req->sv1);
1124	}
1125	else
1126	{
1127	req->type = EIO_FCHMOD;
1128	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1129	}
1130		1401
1131	REQ_SEND;	1402	REQ_SEND;
1132	}	1403	}
1133		1404
1134	void	1405	void
…		…
1137	{	1408	{
1138	dREQ;	1409	dREQ;
1139		1410
1140	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1141	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1412	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1142	req->sv1 = newSVsv (fh_or_path);	1413	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1143
1144	if (SvPOK (req->sv1))
1145	{
1146	req->type = EIO_CHOWN;
1147	req->ptr1 = SvPVbyte_nolen (req->sv1);
1148	}
1149	else
1150	{
1151	req->type = EIO_FCHOWN;
1152	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1153	}
1154		1414
1155	REQ_SEND;	1415	REQ_SEND;
1156	}	1416	}
1157		1417
1158	void	1418	void
…		…
1160	PPCODE:	1420	PPCODE:
1161	{	1421	{
1162	dREQ;	1422	dREQ;
1163		1423
1164	req->type = EIO_READDIR;	1424	req->type = EIO_READDIR;
1165	req->sv1 = newSVsv (pathname);
1166	req->ptr1 = SvPVbyte_nolen (req->sv1);
1167	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1425	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1168		1426
1169	if (flags & EIO_READDIR_DENTS)	1427	if (flags & EIO_READDIR_DENTS)
1170	req->int1 |= EIO_READDIR_CUSTOM2;	1428	req->int1 |= EIO_READDIR_CUSTOM2;
1171		1429
		1430	req_set_path1 (req, pathname);
		1431
1172	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;
1173	}	1446	}
1174		1447
1175	void	1448	void
1176	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1177	ALIAS:	1450	ALIAS:
…		…
1181	PPCODE:	1454	PPCODE:
1182	{	1455	{
1183	dREQ;	1456	dREQ;
1184		1457
1185	req->type = ix;	1458	req->type = ix;
1186	req->sv1 = newSVsv (pathname);	1459	req_set_path1 (req, pathname);
1187	req->ptr1 = SvPVbyte_nolen (req->sv1);
1188		1460
1189	REQ_SEND;	1461	REQ_SEND;
1190	}	1462	}
1191		1463
1192	void	1464	void
…		…
1195	aio_link = EIO_LINK	1467	aio_link = EIO_LINK
1196	aio_symlink = EIO_SYMLINK	1468	aio_symlink = EIO_SYMLINK
1197	aio_rename = EIO_RENAME	1469	aio_rename = EIO_RENAME
1198	PPCODE:	1470	PPCODE:
1199	{	1471	{
		1472	eio_wd wd2 = 0;
1200	dREQ;	1473	dREQ;
1201		1474
1202	req->type = ix;	1475	req->type = ix;
1203	req->sv1 = newSVsv (oldpath);	1476	req_set_path1 (req, oldpath);
1204	req->ptr1 = SvPVbyte_nolen (req->sv1);	1477	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1205	req->sv2 = newSVsv (newpath);	1478	req->int3 = (long)wd2;
1206	req->ptr2 = SvPVbyte_nolen (req->sv2);
1207		1479
1208	REQ_SEND;	1480	REQ_SEND;
1209	}	1481	}
1210		1482
1211	void	1483	void
…		…
1213	PPCODE:	1485	PPCODE:
1214	{	1486	{
1215	dREQ;	1487	dREQ;
1216		1488
1217	req->type = EIO_MKNOD;	1489	req->type = EIO_MKNOD;
1218	req->sv1 = newSVsv (pathname);
1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
1220	req->int2 = (mode_t)mode;	1490	req->int2 = (mode_t)mode;
1221	req->offs = dev;	1491	req->offs = dev;
		1492	req_set_path1 (req, pathname);
1222		1493
1223	REQ_SEND;	1494	REQ_SEND;
1224	}	1495	}
1225		1496
1226	void	1497	void
1227	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)
1228	ALIAS:	1499	ALIAS:
1229	aio_mtouch = EIO_MTOUCH	1500	aio_mtouch = EIO_MTOUCH
1230	aio_msync = EIO_MSYNC	1501	aio_msync = EIO_MSYNC
1231	PROTOTYPE: $$$$;$
1232	PPCODE:	1502	PPCODE:
1233	{	1503	{
1234	STRLEN svlen;	1504	STRLEN svlen;
		1505	char *svptr = SvPVbyte (data, svlen);
1235	UV len = SvUV (length);	1506	UV len = SvUV (length);
1236	char *svptr = SvPVbyte (data, svlen);
1237		1507
1238	if (offset < 0)	1508	if (offset < 0)
1239	offset += svlen;	1509	offset += svlen;
1240		1510
1241	if (offset < 0 || offset > svlen)	1511	if (offset < 0 || offset > svlen)
…		…
1246		1516
1247	{	1517	{
1248	dREQ;	1518	dREQ;
1249		1519
1250	req->type = ix;	1520	req->type = ix;
1251	req->size = len;
1252	req->sv2 = SvREFCNT_inc (data);	1521	req->sv2 = SvREFCNT_inc (data);
1253	req->ptr2 = (char *)svptr + offset;	1522	req->ptr2 = (char *)svptr + offset;
		1523	req->size = len;
1254	req->int1 = flags;	1524	req->int1 = flags;
1255		1525
1256	REQ_SEND;	1526	REQ_SEND;
1257	}	1527	}
1258	}	1528	}
1259		1529
1260	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
1261	aio_busy (double delay, SV *callback=&PL_sv_undef)	1572	aio_busy (double delay, SV *callback=&PL_sv_undef)
1262	PPCODE:	1573	PPCODE:
1263	{	1574	{
1264	dREQ;	1575	dREQ;
1265		1576
…		…
1269	REQ_SEND;	1580	REQ_SEND;
1270	}	1581	}
1271		1582
1272	void	1583	void
1273	aio_group (SV *callback=&PL_sv_undef)	1584	aio_group (SV *callback=&PL_sv_undef)
1274	PROTOTYPE: ;$
1275	PPCODE:	1585	PPCODE:
1276	{	1586	{
1277	dREQ;	1587	dREQ;
1278		1588
1279	req->type = EIO_GROUP;	1589	req->type = EIO_GROUP;
…		…
1296	REQ_SEND;	1606	REQ_SEND;
1297	}	1607	}
1298		1608
1299	int	1609	int
1300	aioreq_pri (int pri = 0)	1610	aioreq_pri (int pri = 0)
1301	PROTOTYPE: ;$
1302	CODE:	1611	CODE:
1303	RETVAL = next_pri;	1612	RETVAL = next_pri;
1304	if (items > 0)	1613	if (items > 0)
1305	{	1614	{
1306	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1318	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1627	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1319	next_pri = nice;	1628	next_pri = nice;
1320		1629
1321	void	1630	void
1322	flush ()	1631	flush ()
1323	PROTOTYPE:
1324	CODE:	1632	CODE:
1325	while (eio_nreqs ())	1633	while (eio_nreqs ())
1326	{	1634	{
1327	poll_wait ();	1635	poll_wait ();
1328	poll_cb ();	1636	poll_cb ();
1329	}	1637	}
1330		1638
1331	int	1639	int
1332	poll()	1640	poll ()
1333	PROTOTYPE:
1334	CODE:	1641	CODE:
1335	poll_wait ();	1642	poll_wait ();
1336	RETVAL = poll_cb ();	1643	RETVAL = poll_cb ();
1337	OUTPUT:	1644	OUTPUT:
1338	RETVAL	1645	RETVAL
1339		1646
1340	int	1647	int
1341	poll_fileno()	1648	poll_fileno ()
1342	PROTOTYPE:
1343	CODE:	1649	CODE:
1344	RETVAL = s_epipe_fd (&respipe);	1650	RETVAL = s_epipe_fd (&respipe);
1345	OUTPUT:	1651	OUTPUT:
1346	RETVAL	1652	RETVAL
1347		1653
1348	int	1654	int
1349	poll_cb(...)	1655	poll_cb (...)
1350	PROTOTYPE:	1656	PROTOTYPE:
1351	CODE:	1657	CODE:
1352	RETVAL = poll_cb ();	1658	RETVAL = poll_cb ();
1353	OUTPUT:	1659	OUTPUT:
1354	RETVAL	1660	RETVAL
1355		1661
1356	void	1662	void
1357	poll_wait()	1663	poll_wait ()
1358	PROTOTYPE:
1359	CODE:	1664	CODE:
1360	poll_wait ();	1665	poll_wait ();
1361		1666
1362	int	1667	int
1363	nreqs()	1668	nreqs ()
1364	PROTOTYPE:
1365	CODE:	1669	CODE:
1366	RETVAL = eio_nreqs ();	1670	RETVAL = eio_nreqs ();
1367	OUTPUT:	1671	OUTPUT:
1368	RETVAL	1672	RETVAL
1369		1673
1370	int	1674	int
1371	nready()	1675	nready ()
1372	PROTOTYPE:
1373	CODE:	1676	CODE:
1374	RETVAL = eio_nready ();	1677	RETVAL = eio_nready ();
1375	OUTPUT:	1678	OUTPUT:
1376	RETVAL	1679	RETVAL
1377		1680
1378	int	1681	int
1379	npending()	1682	npending ()
1380	PROTOTYPE:
1381	CODE:	1683	CODE:
1382	RETVAL = eio_npending ();	1684	RETVAL = eio_npending ();
1383	OUTPUT:	1685	OUTPUT:
1384	RETVAL	1686	RETVAL
1385		1687
1386	int	1688	int
1387	nthreads()	1689	nthreads ()
1388	PROTOTYPE:
1389	CODE:	1690	CODE:
1390	RETVAL = eio_nthreads ();	1691	RETVAL = eio_nthreads ();
1391	OUTPUT:	1692	OUTPUT:
1392	RETVAL	1693	RETVAL
1393		1694
1394	int	1695	int
1395	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)
1396	PROTOTYPE: $$$$
1397	CODE:	1697	CODE:
1398	RETVAL = posix_fadvise (fh, offset, length, advice);	1698	RETVAL = posix_fadvise (fh, offset, length, advice);
1399	OUTPUT:	1699	OUTPUT:
1400	RETVAL	1700	RETVAL
1401		1701
1402	ssize_t	1702	IV
1403	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1703	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1404	PROTOTYPE: $$$$
1405	CODE:	1704	CODE:
1406	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1407	OUTPUT:	1706	OUTPUT:
1408	RETVAL	1707	RETVAL
1409		1708
1410	void	1709	void
1411	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1412	PROTOTYPE: $$$$$;$
1413	PPCODE:	1711	PPCODE:
1414	sv_unmagic (scalar, MMAP_MAGIC);	1712	sv_unmagic (scalar, MMAP_MAGIC);
1415	{	1713	{
1416	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1417	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1440	XSRETURN_YES;	1738	XSRETURN_YES;
1441	}	1739	}
1442		1740
1443	void	1741	void
1444	munmap (SV *scalar)	1742	munmap (SV *scalar)
1445	PROTOTYPE: $
1446	CODE:	1743	CODE:
1447	sv_unmagic (scalar, MMAP_MAGIC);	1744	sv_unmagic (scalar, MMAP_MAGIC);
1448		1745
1449	int	1746	int
1450	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1451	PROTOTYPE: $$$$	1748	ALIAS:
		1749	mprotect = 1
1452	CODE:	1750	CODE:
1453	{	1751	{
1454	char *addr = SvPV_nolen (scalar) + offset;	1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
1455		1755
1456	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)
1457	length = SvCUR (scalar) - offset;	1763	len = svlen - offset;
1458		1764
1459	if (addr >= SvEND (scalar) || length <= 0)	1765	addr = (void *)(((intptr_t)addr) + offset);
1460	XSRETURN_EMPTY;	1766	eio_page_align (&addr, &len);
1461		1767
		1768	switch (ix)
		1769	{
1462	RETVAL = posix_madvise (addr, length, advice);	1770	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1771	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1772	}
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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