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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 2010 UTC vs.
Revision 1.207 by root, Fri Dec 30 07:40:54 2011 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		23
25	/* perl namespace pollution */	24	/* perl namespace pollution */
26	#undef VERSION	25	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		26
77	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	29	#undef readdir
80	#undef opendir	30	#undef opendir
81	#undef closedir	31	#undef closedir
		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
82		76
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
108		102
109	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
112		106
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		108
115	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
116	SV *callback; \	110	SV *callback; \
117	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
118	STRLEN stroffset; \	113	STRLEN stroffset; \
119	SV *self;	114	SV *self;
120		115
121	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
122		117
		118	#include "libeio/config.h"
123	#include "libeio/eio.h"	119	#include "libeio/eio.h"
		120
		121	static int req_invoke (eio_req *req);
		122	#define EIO_FINISH(req) req_invoke (req)
		123	static void req_destroy (eio_req *grp);
		124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	/* Linux/others */
		129	#ifndef O_ASYNC
		130	# define O_ASYNC 0
		131	#endif
		132	#ifndef O_DIRECT
		133	# define O_DIRECT 0
		134	#endif
		135	#ifndef O_NOATIME
		136	# define O_NOATIME 0
		137	#endif
		138
		139	/* POSIX */
		140	#ifndef O_CLOEXEC
		141	# define O_CLOEXEC 0
		142	#endif
		143	#ifndef O_NOFOLLOW
		144	# define O_NOFOLLOW 0
		145	#endif
		146	#ifndef O_NOCTTY
		147	# define O_NOCTTY 0
		148	#endif
		149	#ifndef O_NONBLOCK
		150	# define O_NONBLOCK 0
		151	#endif
		152	#ifndef O_EXEC
		153	# define O_EXEC 0
		154	#endif
		155	#ifndef O_SEARCH
		156	# define O_SEARCH 0
		157	#endif
		158	#ifndef O_DIRECTORY
		159	# define O_DIRECTORY 0
		160	#endif
		161	#ifndef O_DSYNC
		162	# define O_DSYNC 0
		163	#endif
		164	#ifndef O_RSYNC
		165	# define O_RSYNC 0
		166	#endif
		167	#ifndef O_SYNC
		168	# define O_SYNC 0
		169	#endif
		170	#ifndef O_TTY_INIT
		171	# define O_TTY_INIT 0
		172	#endif
124		173
125	#ifndef POSIX_FADV_NORMAL	174	#ifndef POSIX_FADV_NORMAL
126	# define POSIX_FADV_NORMAL 0	175	# define POSIX_FADV_NORMAL 0
127	# define NO_FADVISE 1
128	#endif	176	#endif
129	#ifndef POSIX_FADV_SEQUENTIAL	177	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0	178	# define POSIX_FADV_SEQUENTIAL 0
131	#endif	179	#endif
132	#ifndef POSIX_FADV_RANDOM	180	#ifndef POSIX_FADV_RANDOM
…		…
140	#endif	188	#endif
141	#ifndef POSIX_FADV_DONTNEED	189	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0	190	# define POSIX_FADV_DONTNEED 0
143	#endif	191	#endif
144		192
		193	#if !HAVE_POSIX_FADVISE
		194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		195	#endif
		196
		197	#ifndef POSIX_MADV_NORMAL
		198	# define POSIX_MADV_NORMAL 0
		199	#endif
		200	#ifndef POSIX_MADV_SEQUENTIAL
		201	# define POSIX_MADV_SEQUENTIAL 0
		202	#endif
		203	#ifndef POSIX_MADV_RANDOM
		204	# define POSIX_MADV_RANDOM 0
		205	#endif
		206	#ifndef POSIX_MADV_WILLNEED
		207	# define POSIX_MADV_WILLNEED 0
		208	#endif
		209	#ifndef POSIX_MADV_DONTNEED
		210	# define POSIX_MADV_DONTNEED 0
		211	#endif
		212
		213	#if !HAVE_POSIX_MADVISE
		214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		215	#endif
		216
		217	#ifndef PROT_NONE
		218	# define PROT_NONE 0
		219	#endif
		220	#ifndef PROT_READ
		221	# define PROT_READ 0
		222	#endif
		223	#ifndef PROT_WRITE
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_EXEC
		227	# define PROT_EXEC 0
		228	#endif
		229
		230	#ifndef ST_RDONLY
		231	# define ST_RDONLY 0
		232	#endif
		233	#ifndef ST_NOSUID
		234	# define ST_NOSUID 0
		235	#endif
145	#ifndef ST_NODEV	236	#ifndef ST_NODEV
146	# define ST_NODEV 0	237	# define ST_NODEV 0
147	#endif	238	#endif
148	#ifndef ST_NOEXEC	239	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0	240	# define ST_NOEXEC 0
…		…
171	#endif	262	#endif
172	#ifndef ST_RELATIME	263	#ifndef ST_RELATIME
173	# define ST_RELATIME 0	264	# define ST_RELATIME 0
174	#endif	265	#endif
175		266
176	#ifndef MCL_CURRENT	267	#ifndef S_IFIFO
177	# define MCL_CURRENT 0	268	# define S_IFIFO 0
178	#endif	269	#endif
179	#ifndef MCL_FUTURE	270	#ifndef S_IFCHR
180	# define MCL_FUTURE 0	271	# define S_IFCHR 0
		272	#endif
		273	#ifndef S_IFBLK
		274	# define S_IFBLK 0
		275	#endif
		276	#ifndef S_IFLNK
		277	# define S_IFLNK 0
		278	#endif
		279	#ifndef S_IFREG
		280	# define S_IFREG 0
		281	#endif
		282	#ifndef S_IFDIR
		283	# define S_IFDIR 0
		284	#endif
		285	#ifndef S_IFWHT
		286	# define S_IFWHT 0
		287	#endif
		288	#ifndef S_IFSOCK
		289	# define S_IFSOCK 0
181	#endif	290	#endif
182		291
183	#ifndef MAP_ANONYMOUS	292	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	293	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	294	# define MAP_ANONYMOUS MAP_ANON
…		…
201	#endif	310	#endif
202	#ifndef MAP_NONBLOCK	311	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0	312	# define MAP_NONBLOCK 0
204	#endif	313	#endif
205		314
		315	#ifndef makedev
		316	# define makedev(maj,min) (((maj) << 8) | (min))
		317	#endif
		318	#ifndef major
		319	# define major(dev) ((dev) >> 8)
		320	#endif
		321	#ifndef minor
		322	# define minor(dev) ((dev) & 0xff)
		323	#endif
		324
206	#ifndef PAGESIZE	325	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	326	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	327	#endif
209
210	static int req_invoke (eio_req *req);
211	#define EIO_FINISH(req) req_invoke (req)
212	static void req_destroy (eio_req *grp);
213	#define EIO_DESTROY(req) req_destroy (req)
214		328
215	enum {	329	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	331	};
218		332
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
		335	typedef eio_wd aio_wd;
223		336
224	static SV *on_next_submit;	337	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	338	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	339	static int max_outstanding;
227		340
228	static s_epipe respipe;	341	static s_epipe respipe;
229		342
230	static void req_destroy (aio_req req);	343	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	344	static void req_cancel (aio_req req);
232		345
233	static void want_poll (void)	346	static void
		347	want_poll (void)
234	{	348	{
235	/* write a dummy byte to the pipe so fh becomes ready */	349	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	350	s_epipe_signal (&respipe);
237	}	351	}
238		352
239	static void done_poll (void)	353	static void
		354	done_poll (void)
240	{	355	{
241	/* read any signals sent by the worker threads */	356	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	357	s_epipe_drain (&respipe);
243	}	358	}
244		359
245	/* must be called at most once */	360	/* must be called at most once */
		361	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	362	req_sv (aio_req req, HV *stash)
247	{	363	{
248	if (!req->self)	364	if (!req->self)
249	{	365	{
250	req->self = (SV *)newHV ();	366	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	367	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	368	}
253		369
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	370	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	371	}
256		372
257	static aio_req SvAIO_REQ (SV *sv)	373	static SV *
		374	newSVaio_wd (aio_wd wd)
		375	{
		376	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		377	}
		378
		379	static aio_req
		380	SvAIO_REQ (SV *sv)
258	{	381	{
259	MAGIC *mg;	382	MAGIC *mg;
260		383
261	if (!SvROK (sv)	384	if (!SvROK (sv)
		385	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	386	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	387	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	388	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	389	croak ("object of class IO::AIO::REQ expected");
266		390
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	391	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		392
269	return mg ? (aio_req)mg->mg_ptr : 0;	393	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	394	}
271		395
		396	static aio_wd
		397	SvAIO_WD (SV *sv)
		398	{
		399	if (!SvROK (sv)
		400	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		401	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		402	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		403
		404	return (aio_wd)(long)SvIVX (SvRV (sv));
		405	}
		406
		407	static void
272	static void aio_grp_feed (aio_req grp)	408	aio_grp_feed (aio_req grp)
273	{	409	{
274	if (grp->sv2 && SvOK (grp->sv2))	410	if (grp->sv2 && SvOK (grp->sv2))
275	{	411	{
276	dSP;	412	dSP;
277		413
…		…
285	FREETMPS;	421	FREETMPS;
286	LEAVE;	422	LEAVE;
287	}	423	}
288	}	424	}
289		425
		426	static void
290	static void req_submit (eio_req *req)	427	req_submit (eio_req *req)
291	{	428	{
292	eio_submit (req);	429	eio_submit (req);
293		430
294	if (expect_false (on_next_submit))	431	if (expect_false (on_next_submit))
295	{	432	{
…		…
302	PUTBACK;	439	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	440	call_sv (cb, G_DISCARD | G_EVAL);
304	}	441	}
305	}	442	}
306		443
		444	static int
307	static int req_invoke (eio_req *req)	445	req_invoke (eio_req *req)
308	{	446	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	447	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	448	SvREADONLY_off (req->sv2);
313		449
314	if (!EIO_CANCELLED (req) && req->callback)	450	if (!EIO_CANCELLED (req) && req->callback)
315	{	451	{
		452	dSP;
		453	static SV *sv_result_cache; /* caches the result integer SV */
		454	SV *sv_result;
		455
316	ENTER;	456	ENTER;
317	SAVETMPS;	457	SAVETMPS;
318	PUSHMARK (SP);	458	PUSHMARK (SP);
319	EXTEND (SP, 1);	459	EXTEND (SP, 1);
320		460
		461	/* do not recreate the result IV from scratch each time */
		462	if (expect_true (sv_result_cache))
		463	{
		464	sv_result = sv_result_cache; sv_result_cache = 0;
		465	SvIV_set (sv_result, req->result);
		466	SvIOK_only (sv_result);
		467	}
		468	else
		469	{
		470	sv_result = newSViv (req->result);
		471	SvREADONLY_on (sv_result);
		472	}
		473
321	switch (req->type)	474	switch (req->type)
322	{	475	{
		476	case EIO_WD_OPEN:
		477	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		478	break;
		479
323	case EIO_READDIR:	480	case EIO_READDIR:
324	{	481	{
325	SV *rv = &PL_sv_undef;	482	SV *rv = &PL_sv_undef;
326		483
327	if (req->result >= 0)	484	if (req->result >= 0)
…		…
415	case EIO_STATVFS:	572	case EIO_STATVFS:
416	case EIO_FSTATVFS:	573	case EIO_FSTATVFS:
417	{	574	{
418	SV *rv = &PL_sv_undef;	575	SV *rv = &PL_sv_undef;
419		576
		577	#ifndef _WIN32
420	if (req->result >= 0)	578	if (req->result >= 0)
421	{	579	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	580	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	581	HV *hv = newHV ();
424		582
…		…
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	592	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	593	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	594	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	595	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	596	}
		597	#endif
439		598
440	PUSHs (rv);	599	PUSHs (rv);
441	}	600	}
442		601
443	break;	602	break;
…		…
459	case EIO_NOP:	618	case EIO_NOP:
460	case EIO_BUSY:	619	case EIO_BUSY:
461	break;	620	break;
462		621
463	case EIO_READLINK:	622	case EIO_READLINK:
		623	case EIO_REALPATH:
464	if (req->result > 0)	624	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	625	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	626	break;
467		627
468	case EIO_STAT:	628	case EIO_STAT:
469	case EIO_LSTAT:	629	case EIO_LSTAT:
470	case EIO_FSTAT:	630	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	631	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		632
472	PL_laststatval = req->result;	633	if (!(PL_laststatval = req->result))
		634	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	635	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	636
		637	PUSHs (sv_result);
475	break;	638	break;
476		639
477	case EIO_READ:	640	case EIO_READ:
478	{	641	{
479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	642	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480	*SvEND (req->sv2) = 0;	643	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	644	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	645	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	646	PUSHs (sv_result);
484	}	647	}
485	break;	648	break;
486		649
487	case EIO_DUP2:	650	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	651	if (req->result > 0)
489	req->result = 0;	652	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	653	/* FALLTHROUGH */
491		654
492	default:	655	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	656	PUSHs (sv_result);
494	break;	657	break;
495	}	658	}
496		659
497	errno = req->errorno;	660	errno = req->errorno;
498		661
499	PUTBACK;	662	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	663	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	664	SPAGAIN;
502		665
		666	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		667	SvREFCNT_dec (sv_result);
		668	else
		669	sv_result_cache = sv_result;
		670
503	FREETMPS;	671	FREETMPS;
504	LEAVE;	672	LEAVE;
505		673
506	PUTBACK;	674	PUTBACK;
507	}	675	}
508		676
509	return !!SvTRUE (ERRSV);	677	return !!SvTRUE (ERRSV);
510	}	678	}
511		679
		680	static void
512	static void req_destroy (aio_req req)	681	req_destroy (aio_req req)
513	{	682	{
514	if (req->self)	683	if (req->self)
515	{	684	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	685	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	686	SvREFCNT_dec (req->self);
518	}	687	}
519		688
520	SvREFCNT_dec (req->sv1);	689	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	690	SvREFCNT_dec (req->sv2);
		691	SvREFCNT_dec (req->sv3);
		692	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	693	SvREFCNT_dec (req->callback);
523		694
524	Safefree (req);	695	free (req);
525	}	696	}
526		697
		698	static void
527	static void req_cancel_subs (aio_req grp)	699	req_cancel_subs (aio_req grp)
528	{	700	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	701	if (grp->type != EIO_GROUP)
532	return;	702	return;
533		703
534	SvREFCNT_dec (grp->sv2);	704	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	705	grp->sv2 = 0;
536		706
537	eio_grp_cancel (grp);	707	eio_grp_cancel (grp);
538	}	708	}
539		709
540	static void	710	static void ecb_cold
541	create_respipe (void)	711	create_respipe (void)
542	{	712	{
543	if (s_epipe_renew (&respipe))	713	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	714	croak ("IO::AIO: unable to initialize result pipe");
545	}	715	}
546		716
547	static void poll_wait (void)	717	static void
		718	poll_wait (void)
548	{	719	{
549	while (eio_nreqs ())	720	while (eio_nreqs ())
550	{	721	{
551	int size;	722	int size;
552		723
…		…
561		732
562	s_epipe_wait (&respipe);	733	s_epipe_wait (&respipe);
563	}	734	}
564	}	735	}
565		736
566	static int poll_cb (void)	737	static int
		738	poll_cb (void)
567	{	739	{
568	for (;;)	740	for (;;)
569	{	741	{
570	int res = eio_poll ();	742	int res = eio_poll ();
571		743
…		…
577		749
578	poll_wait ();	750	poll_wait ();
579	}	751	}
580	}	752	}
581		753
582	static void atfork_child (void)	754	static void ecb_cold
		755	reinit (void)
583	{	756	{
584	create_respipe ();	757	create_respipe ();
		758
		759	if (eio_init (want_poll, done_poll) < 0)
		760	croak ("IO::AIO: unable to initialise eio library");
585	}	761	}
586		762
587	/*****************************************************************************/	763	/*****************************************************************************/
588		764
589	#if !_POSIX_MAPPED_FILES	765	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	766	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591	# define munmap(addr,length) (errno = ENOSYS, -1)	767	# define munmap(addr,length) (errno = ENOSYS, -1)
592	#endif	768	#endif
593		769
		770	#if !_POSIX_MEMORY_PROTECTION
		771	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		772	# define PROT_NONE 0
		773	# define PROT_WRITE 0
		774	# define MAP_PRIVATE 0
		775	# define MAP_SHARED 0
		776	# define MAP_FIXED 0
		777	#endif
		778
594	#define MMAP_MAGIC PERL_MAGIC_ext	779	#define MMAP_MAGIC PERL_MAGIC_ext
595		780
596	static int	781	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	782	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	783	{
599	int old_errno = errno;	784	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	785	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	786	errno = old_errno;
602		787
603	mg->mg_obj = 0; /* just in case */	788	mg->mg_obj = 0; /* just in case */
604		789
605	SvREADONLY_off (sv);	790	SvREADONLY_off (sv);
		791
		792	if (SvPVX (sv) != mg->mg_ptr)
		793	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		794
606	SvCUR_set (sv, 0);	795	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	796	SvPVX (sv) = 0;
609	SvOK_off (sv);	797	SvOK_off (sv);
610		798
611	return 0;	799	return 0;
612	}	800	}
…		…
622	{	810	{
623	SvGETMAGIC (cb_sv);	811	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	812	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	813	}
626		814
		815	static aio_req ecb_noinline
		816	dreq (SV *callback)
		817	{
		818	SV *cb_cv;
		819	aio_req req;
		820	int req_pri = next_pri;
		821	next_pri = EIO_PRI_DEFAULT;
		822
		823	cb_cv = get_cb (callback);
		824
		825	req = calloc (sizeof (*req), 1);
		826	if (!req)
		827	croak ("out of memory during eio_req allocation");
		828
		829	req->callback = SvREFCNT_inc (cb_cv);
		830	req->pri = req_pri;
		831
		832	return req;
		833	}
		834
627	#define dREQ \	835	#define dREQ \
628	SV *cb_cv; \	836	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		837
642	#define REQ_SEND \	838	#define REQ_SEND \
643	PUTBACK; \	839	PUTBACK; \
644	req_submit (req); \	840	req_submit (req); \
645	SPAGAIN; \	841	SPAGAIN; \
646	\	842	\
647	if (GIMME_V != G_VOID) \	843	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	844	XPUSHs (req_sv (req, aio_req_stash));
		845
		846	ecb_inline void
		847	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		848	{
		849	if (expect_false (SvROK (path)))
		850	{
		851	SV *rv = SvRV (path);
		852	SV *wdob;
		853
		854	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		855	{
		856	path = AvARRAY (rv)[1];
		857	wdob = AvARRAY (rv)[0];
		858
		859	if (SvOK (wdob))
		860	{
		861	*wd = SvAIO_WD (wdob);
		862	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		863	}
		864	else
		865	*wd = EIO_INVALID_WD;
		866	}
		867	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		868	{
		869	*wd = (aio_wd)(long)SvIVX (rv);
		870	*wdsv = SvREFCNT_inc_NN (rv);
		871	*ptr = ".";
		872	return; /* path set to "." */
		873	}
		874	else
		875	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		876	}
		877
		878	*pathsv = newSVsv (path);
		879	*ptr = SvPVbyte_nolen (*pathsv);
		880	}
		881
		882	static void ecb_noinline
		883	req_set_path1 (aio_req req, SV *path)
		884	{
		885	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		886	}
		887
		888	static void ecb_noinline
		889	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		890	{
		891	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		892
		893	switch (SvTYPE (rv))
		894	{
		895	case SVt_PVIO:
		896	case SVt_PVLV:
		897	case SVt_PVGV:
		898	req->type = type_fh;
		899	req->sv1 = newSVsv (fh_or_path);
		900	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		901	break;
		902
		903	default:
		904	req->type = type_path;
		905	req_set_path1 (req, fh_or_path);
		906	break;
		907	}
		908	}
		909
		910	XS(boot_IO__AIO) ecb_cold;
649		911
650	MODULE = IO::AIO PACKAGE = IO::AIO	912	MODULE = IO::AIO PACKAGE = IO::AIO
651		913
652	PROTOTYPES: ENABLE	914	PROTOTYPES: ENABLE
653		915
…		…
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	924	# define const_eio(name) { # name, (IV) EIO_ ## name },
663	const_iv (EXDEV)	925	const_iv (EXDEV)
664	const_iv (ENOSYS)	926	const_iv (ENOSYS)
665	const_iv (O_RDONLY)	927	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	928	const_iv (O_WRONLY)
		929	const_iv (O_RDWR)
667	const_iv (O_CREAT)	930	const_iv (O_CREAT)
668	const_iv (O_TRUNC)	931	const_iv (O_TRUNC)
669	#ifndef _WIN32	932	const_iv (O_EXCL)
		933	const_iv (O_APPEND)
		934
		935	const_iv (O_ASYNC)
		936	const_iv (O_DIRECT)
		937	const_iv (O_NOATIME)
		938
		939	const_iv (O_CLOEXEC)
		940	const_iv (O_NOCTTY)
		941	const_iv (O_NOFOLLOW)
		942	const_iv (O_NONBLOCK)
		943	const_iv (O_EXEC)
		944	const_iv (O_SEARCH)
		945	const_iv (O_DIRECTORY)
		946	const_iv (O_DSYNC)
		947	const_iv (O_RSYNC)
		948	const_iv (O_SYNC)
		949	const_iv (O_TTY_INIT)
		950
670	const_iv (S_IFIFO)	951	const_iv (S_IFIFO)
671	#endif	952	const_iv (S_IFCHR)
		953	const_iv (S_IFBLK)
		954	const_iv (S_IFLNK)
		955	const_iv (S_IFREG)
		956	const_iv (S_IFDIR)
		957	const_iv (S_IFWHT)
		958	const_iv (S_IFSOCK)
		959	const_iv (S_IFMT)
		960
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	961	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	962	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	963	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	964	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	965	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	966	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		967
		968	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		969	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		970	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		971	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		972	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678		973
679	const_iv (ST_RDONLY)	974	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	975	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	976	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	977	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	982	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	983	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	984	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	985	const_iv (ST_RELATIME)
691		986
		987	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	988	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	989	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	990	const_iv (PROT_WRITE)
696		991
697	/*const_iv (MAP_FIXED)*/	992	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	993	const_iv (MAP_PRIVATE)
…		…
704	const_iv (MAP_LOCKED)	999	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	1000	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	1001	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	1002	const_iv (MAP_NONBLOCK)
708		1003
709	const_iv (MCL_FUTURE)	1004	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	1005	const_eio (MCL_CURRENT)
711		1006
712	const_eio (MS_ASYNC)	1007	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	1008	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	1009	const_eio (MS_SYNC)
715		1010
716	const_eio (MT_MODIFY)	1011	const_eio (MT_MODIFY)
717		1012
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1013	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	1014	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1015	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1016
		1017	const_eio (FALLOC_FL_KEEP_SIZE)
721		1018
722	const_eio (READDIR_DENTS)	1019	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	1020	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	1021	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1022	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1033	};
737		1034
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1035	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1036	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1037	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1038	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
741		1039
742	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1040	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
743	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1041	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1042
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1043	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1044
747	create_respipe ();	1045	reinit ();
748
749	if (eio_init (want_poll, done_poll) < 0)
750	croak ("IO::AIO: unable to initialise eio library");
751
752	/* atfork child called in fifo order, so before eio's handler */
753	X_THREAD_ATFORK (0, 0, atfork_child);
754	}	1046	}
755		1047
756	void	1048	void
		1049	reinit ()
		1050	PROTOTYPE:
		1051
		1052	void
757	max_poll_reqs (int nreqs)	1053	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1054	PROTOTYPE: $
759	CODE:	1055	CODE:
760	eio_set_max_poll_reqs (nreqs);	1056	eio_set_max_poll_reqs (nreqs);
761		1057
762	void	1058	void
…		…
764	PROTOTYPE: $	1060	PROTOTYPE: $
765	CODE:	1061	CODE:
766	eio_set_max_poll_time (nseconds);	1062	eio_set_max_poll_time (nseconds);
767		1063
768	void	1064	void
769	min_parallel (int nthreads)	1065	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1066	PROTOTYPE: $
771	CODE:	1067	CODE:
772	eio_set_min_parallel (nthreads);	1068	eio_set_min_parallel (nthreads);
773		1069
774	void	1070	void
775	max_parallel (int nthreads)	1071	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1072	PROTOTYPE: $
777	CODE:	1073	CODE:
778	eio_set_max_parallel (nthreads);	1074	eio_set_max_parallel (nthreads);
779		1075
780	void	1076	void
781	max_idle (int nthreads)	1077	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1078	PROTOTYPE: $
783	CODE:	1079	CODE:
784	eio_set_max_idle (nthreads);	1080	eio_set_max_idle (nthreads);
785		1081
786	void	1082	void
		1083	idle_timeout (unsigned int seconds)
		1084	PROTOTYPE: $
		1085	CODE:
		1086	eio_set_idle_timeout (seconds);
		1087
		1088	void
787	max_outstanding (int maxreqs)	1089	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1090	PROTOTYPE: $
789	CODE:	1091	CODE:
790	max_outstanding = maxreqs;	1092	max_outstanding = maxreqs;
791		1093
792	void	1094	void
		1095	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1096	PPCODE:
		1097	{
		1098	dREQ;
		1099
		1100	req->type = EIO_WD_OPEN;
		1101	req_set_path1 (req, pathname);
		1102
		1103	REQ_SEND;
		1104	}
		1105
		1106	void
793	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1107	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1108	PPCODE:
796	{	1109	{
797	dREQ;	1110	dREQ;
798		1111
799	req->type = EIO_OPEN;	1112	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1113	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1114	req->int1 = flags;
803	req->int2 = mode;	1115	req->int2 = mode;
804		1116
805	REQ_SEND;	1117	REQ_SEND;
806	}	1118	}
807		1119
808	void	1120	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1121	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1122	ALIAS:
812	aio_fsync = EIO_FSYNC	1123	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1124	aio_fdatasync = EIO_FDATASYNC
		1125	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1126	PPCODE:
815	{	1127	{
816	int fd = s_fileno_croak (fh, 0);	1128	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1129	dREQ;
818		1130
…		…
823	REQ_SEND (req);	1135	REQ_SEND (req);
824	}	1136	}
825		1137
826	void	1138	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1139	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1140	PPCODE:
830	{	1141	{
831	int fd = s_fileno_croak (fh, 0);	1142	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1143	dREQ;
833		1144
…		…
840		1151
841	REQ_SEND (req);	1152	REQ_SEND (req);
842	}	1153	}
843		1154
844	void	1155	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1156	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1157	PPCODE:
848	{	1158	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1159	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1160	dREQ;
852		1161
853	if (close_pipe < 0)	1162	req->type = EIO_FALLOCATE;
		1163	req->sv1 = newSVsv (fh);
		1164	req->int1 = fd;
		1165	req->int2 = mode;
		1166	req->offs = offset;
		1167	req->size = len;
		1168
		1169	REQ_SEND (req);
		1170	}
		1171
		1172	void
		1173	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1174	PPCODE:
		1175	{
		1176	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1177	int fd = s_fileno_croak (fh, 0);
		1178	dREQ;
		1179
		1180	if (expect_false (close_fd < 0))
854	{	1181	{
855	int pipefd [2];	1182	int pipefd [2];
856		1183
		1184	if (
		1185	#ifdef _WIN32
		1186	_pipe (pipefd, 1, _O_BINARY) < 0
		1187	#else
857	if (pipe (pipefd) < 0	1188	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1189	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1190	#endif
		1191	|| close (pipefd [1]) < 0
		1192	)
860	abort (); /*D*/	1193	abort (); /*D*/
861		1194
862	close_pipe = pipefd [0];	1195	close_fd = pipefd [0];
863	}	1196	}
864		1197
865	req->type = EIO_DUP2;	1198	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1199	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1200	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1201	req->int2 = fd;
869		1202
870	REQ_SEND (req);	1203	REQ_SEND (req);
871	}	1204	}
…		…
873	void	1206	void
874	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1207	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875	ALIAS:	1208	ALIAS:
876	aio_read = EIO_READ	1209	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1210	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1211	PPCODE:
880	{	1212	{
881	STRLEN svlen;	1213	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1214	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1215	char *svptr = SvPVbyte (data, svlen);
…		…
923	REQ_SEND;	1255	REQ_SEND;
924	}	1256	}
925	}	1257	}
926		1258
927	void	1259	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1260	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
929	PROTOTYPE: $$;$	1261	ALIAS:
		1262	aio_readlink = EIO_READLINK
		1263	aio_realpath = EIO_REALPATH
930	PPCODE:	1264	PPCODE:
931	{	1265	{
932	SV *data;
933	dREQ;	1266	dREQ;
934		1267
935	req->type = EIO_READLINK;	1268	req->type = ix;
936	req->sv1 = newSVsv (path);	1269	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1270
939	REQ_SEND;	1271	REQ_SEND;
940	}	1272	}
941		1273
942	void	1274	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1275	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1276	PPCODE:
946	{	1277	{
947	int ifd = s_fileno_croak (in_fh , 0);	1278	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1279	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1280	dREQ;
…		…
959	REQ_SEND;	1290	REQ_SEND;
960	}	1291	}
961		1292
962	void	1293	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1294	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1295	PPCODE:
966	{	1296	{
967	int fd = s_fileno_croak (fh, 0);	1297	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1298	dREQ;
969		1299
…		…
984	aio_statvfs = EIO_STATVFS	1314	aio_statvfs = EIO_STATVFS
985	PPCODE:	1315	PPCODE:
986	{	1316	{
987	dREQ;	1317	dREQ;
988		1318
989	req->sv1 = newSVsv (fh_or_path);	1319	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
990
991	if (SvPOK (req->sv1))
992	{
993	req->type = ix;
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995	}
996	else
997	{
998	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
999	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1000	}
1001		1320
1002	REQ_SEND;	1321	REQ_SEND;
1003	}	1322	}
		1323
		1324	UV
		1325	major (UV dev)
		1326	ALIAS:
		1327	minor = 1
		1328	CODE:
		1329	RETVAL = ix ? major (dev) : minor (dev);
		1330	OUTPUT:
		1331	RETVAL
		1332
		1333	UV
		1334	makedev (UV maj, UV min)
		1335	CODE:
		1336	RETVAL = makedev (maj, min);
		1337	OUTPUT:
		1338	RETVAL
1004		1339
1005	void	1340	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1341	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1007	PPCODE:	1342	PPCODE:
1008	{	1343	{
1009	dREQ;	1344	dREQ;
1010		1345
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1346	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1347	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1014
1015	if (SvPOK (req->sv1))
1016	{
1017	req->type = EIO_UTIME;
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
1019	}
1020	else
1021	{
1022	req->type = EIO_FUTIME;
1023	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1024	}
1025		1349
1026	REQ_SEND;	1350	REQ_SEND;
1027	}	1351	}
1028		1352
1029	void	1353	void
1030	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1354	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1031	PPCODE:	1355	PPCODE:
1032	{	1356	{
1033	dREQ;	1357	dREQ;
1034		1358
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1359	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1360	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_TRUNCATE;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FTRUNCATE;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1361
1049	REQ_SEND;	1362	REQ_SEND;
1050	}	1363	}
1051		1364
1052	void	1365	void
1053	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1366	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1054	ALIAS:
1055	aio_chmod = EIO_CHMOD
1056	aio_mkdir = EIO_MKDIR
1057	PPCODE:	1367	PPCODE:
1058	{	1368	{
1059	dREQ;	1369	dREQ;
1060		1370
1061	req->int2 = mode;	1371	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1372	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1063
1064	if (SvPOK (req->sv1))
1065	{
1066	req->type = ix;
1067	req->ptr1 = SvPVbyte_nolen (req->sv1);
1068	}
1069	else
1070	{
1071	req->type = EIO_FCHMOD;
1072	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1073	}
1074		1373
1075	REQ_SEND;	1374	REQ_SEND;
1076	}	1375	}
1077		1376
1078	void	1377	void
…		…
1081	{	1380	{
1082	dREQ;	1381	dREQ;
1083		1382
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1383	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1384	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1385	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1087
1088	if (SvPOK (req->sv1))
1089	{
1090	req->type = EIO_CHOWN;
1091	req->ptr1 = SvPVbyte_nolen (req->sv1);
1092	}
1093	else
1094	{
1095	req->type = EIO_FCHOWN;
1096	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1097	}
1098		1386
1099	REQ_SEND;	1387	REQ_SEND;
1100	}	1388	}
1101		1389
1102	void	1390	void
…		…
1104	PPCODE:	1392	PPCODE:
1105	{	1393	{
1106	dREQ;	1394	dREQ;
1107		1395
1108	req->type = EIO_READDIR;	1396	req->type = EIO_READDIR;
1109	req->sv1 = newSVsv (pathname);
1110	req->ptr1 = SvPVbyte_nolen (req->sv1);
1111	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1397	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1398
1113	if (flags & EIO_READDIR_DENTS)	1399	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1400	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1401
		1402	req_set_path1 (req, pathname);
		1403
1116	REQ_SEND;	1404	REQ_SEND;
		1405	}
		1406
		1407	void
		1408	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1409	PPCODE:
		1410	{
		1411	dREQ;
		1412
		1413	req->type = EIO_MKDIR;
		1414	req->int2 = mode;
		1415	req_set_path1 (req, pathname);
		1416
		1417	REQ_SEND;
1117	}	1418	}
1118		1419
1119	void	1420	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1421	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1121	ALIAS:	1422	ALIAS:
…		…
1125	PPCODE:	1426	PPCODE:
1126	{	1427	{
1127	dREQ;	1428	dREQ;
1128		1429
1129	req->type = ix;	1430	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1431	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1432
1133	REQ_SEND;	1433	REQ_SEND;
1134	}	1434	}
1135		1435
1136	void	1436	void
…		…
1139	aio_link = EIO_LINK	1439	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1440	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1441	aio_rename = EIO_RENAME
1142	PPCODE:	1442	PPCODE:
1143	{	1443	{
		1444	eio_wd wd2 = 0;
1144	dREQ;	1445	dREQ;
1145		1446
1146	req->type = ix;	1447	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1448	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1450	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1451
1152	REQ_SEND;	1452	REQ_SEND;
1153	}	1453	}
1154		1454
1155	void	1455	void
…		…
1157	PPCODE:	1457	PPCODE:
1158	{	1458	{
1159	dREQ;	1459	dREQ;
1160		1460
1161	req->type = EIO_MKNOD;	1461	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1462	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1463	req->offs = dev;
		1464	req_set_path1 (req, pathname);
1166		1465
1167	REQ_SEND;	1466	REQ_SEND;
1168	}	1467	}
1169		1468
1170	void	1469	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1470	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172	ALIAS:	1471	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1472	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1473	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1474	PPCODE:
1177	{	1475	{
1178	STRLEN svlen;	1476	STRLEN svlen;
		1477	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1478	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);
1181		1479
1182	if (offset < 0)	1480	if (offset < 0)
1183	offset += svlen;	1481	offset += svlen;
1184		1482
1185	if (offset < 0 || offset > svlen)	1483	if (offset < 0 || offset > svlen)
…		…
1190		1488
1191	{	1489	{
1192	dREQ;	1490	dREQ;
1193		1491
1194	req->type = ix;	1492	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1493	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1494	req->ptr2 = (char *)svptr + offset;
		1495	req->size = len;
1198	req->int1 = flags;	1496	req->int1 = flags;
1199		1497
1200	REQ_SEND;	1498	REQ_SEND;
1201	}	1499	}
1202	}	1500	}
1203		1501
1204	void	1502	void
		1503	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1504	PPCODE:
		1505	{
		1506	STRLEN svlen;
		1507	char *svptr = SvPVbyte (data, svlen);
		1508	UV len = SvUV (length);
		1509
		1510	if (offset < 0)
		1511	offset += svlen;
		1512
		1513	if (offset < 0 || offset > svlen)
		1514	croak ("offset outside of scalar");
		1515
		1516	if (!SvOK (length) || len + offset > svlen)
		1517	len = svlen - offset;
		1518
		1519	{
		1520	dREQ;
		1521
		1522	req->type = EIO_MLOCK;
		1523	req->sv2 = SvREFCNT_inc (data);
		1524	req->ptr2 = (char *)svptr + offset;
		1525	req->size = len;
		1526
		1527	REQ_SEND;
		1528	}
		1529	}
		1530
		1531	void
		1532	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1533	PPCODE:
		1534	{
		1535	dREQ;
		1536
		1537	req->type = EIO_MLOCKALL;
		1538	req->int1 = flags;
		1539
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
1206	PPCODE:	1545	PPCODE:
1207	{	1546	{
1208	dREQ;	1547	dREQ;
1209		1548
…		…
1213	REQ_SEND;	1552	REQ_SEND;
1214	}	1553	}
1215		1554
1216	void	1555	void
1217	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1557	PPCODE:
1220	{	1558	{
1221	dREQ;	1559	dREQ;
1222		1560
1223	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
…		…
1240	REQ_SEND;	1578	REQ_SEND;
1241	}	1579	}
1242		1580
1243	int	1581	int
1244	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
1245	PROTOTYPE: ;$
1246	CODE:	1583	CODE:
1247	RETVAL = next_pri;	1584	RETVAL = next_pri;
1248	if (items > 0)	1585	if (items > 0)
1249	{	1586	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1600	next_pri = nice;
1264		1601
1265	void	1602	void
1266	flush ()	1603	flush ()
1267	PROTOTYPE:
1268	CODE:	1604	CODE:
1269	while (eio_nreqs ())	1605	while (eio_nreqs ())
1270	{	1606	{
1271	poll_wait ();	1607	poll_wait ();
1272	poll_cb ();	1608	poll_cb ();
1273	}	1609	}
1274		1610
1275	int	1611	int
1276	poll()	1612	poll ()
1277	PROTOTYPE:
1278	CODE:	1613	CODE:
1279	poll_wait ();	1614	poll_wait ();
1280	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
1281	OUTPUT:	1616	OUTPUT:
1282	RETVAL	1617	RETVAL
1283		1618
1284	int	1619	int
1285	poll_fileno()	1620	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1621	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1622	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1623	OUTPUT:
1290	RETVAL	1624	RETVAL
1291		1625
1292	int	1626	int
1293	poll_cb(...)	1627	poll_cb (...)
1294	PROTOTYPE:	1628	PROTOTYPE:
1295	CODE:	1629	CODE:
1296	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
1297	OUTPUT:	1631	OUTPUT:
1298	RETVAL	1632	RETVAL
1299		1633
1300	void	1634	void
1301	poll_wait()	1635	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1636	CODE:
1304	poll_wait ();	1637	poll_wait ();
1305		1638
1306	int	1639	int
1307	nreqs()	1640	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1641	CODE:
1310	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
1311	OUTPUT:	1643	OUTPUT:
1312	RETVAL	1644	RETVAL
1313		1645
1314	int	1646	int
1315	nready()	1647	nready ()
1316	PROTOTYPE:
1317	CODE:	1648	CODE:
1318	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1319	OUTPUT:	1650	OUTPUT:
1320	RETVAL	1651	RETVAL
1321		1652
1322	int	1653	int
1323	npending()	1654	npending ()
1324	PROTOTYPE:
1325	CODE:	1655	CODE:
1326	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1327	OUTPUT:	1657	OUTPUT:
1328	RETVAL	1658	RETVAL
1329		1659
1330	int	1660	int
1331	nthreads()	1661	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1662	CODE:
1334	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1335	OUTPUT:	1664	OUTPUT:
1336	RETVAL	1665	RETVAL
1337		1666
1338	int	1667	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1668	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	1669	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1670	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1671	OUTPUT:
1348	RETVAL	1672	RETVAL
1349		1673
1350	ssize_t	1674	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1676	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1678	OUTPUT:
1356	RETVAL	1679	RETVAL
1357		1680
1358	void	1681	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1683	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1684	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1685	{
1364	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1688	if (addr == (void *)-1)
1367	XSRETURN_NO;	1689	XSRETURN_NO;
1368		1690
		1691	sv_force_normal (scalar);
		1692
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1693	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1695	->mg_obj = (SV *)length;
1372		1696
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
1374	if (!(prot & PROT_WRITE))	1699	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
1376		1704
1377	SvPVX (scalar) = (char *)addr;	1705	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1706	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1707	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1708	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1710	XSRETURN_YES;
1383	}	1711	}
1384		1712
1385	void	1713	void
1386	munmap (SV *scalar)	1714	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1715	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1716	sv_unmagic (scalar, MMAP_MAGIC);
1390		1717
1391	int	1718	int
1392	mlockall (int flags)	1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1720	ALIAS:
		1721	mprotect = 1
1394	CODE:	1722	CODE:
		1723	{
		1724	STRLEN svlen;
		1725	void *addr = SvPVbyte (scalar, svlen);
		1726	size_t len = SvUV (length);
		1727
		1728	if (offset < 0)
		1729	offset += svlen;
		1730
		1731	if (offset < 0 || offset > svlen)
		1732	croak ("offset outside of scalar");
		1733
		1734	if (!SvOK (length) || len + offset > svlen)
		1735	len = svlen - offset;
		1736
		1737	addr = (void *)(((intptr_t)addr) + offset);
		1738	eio_page_align (&addr, &len);
		1739
		1740	switch (ix)
		1741	{
		1742	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1743	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1744	}
		1745	}
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	int
		1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1751	CODE:
		1752	{
		1753	STRLEN svlen;
		1754	void *addr = SvPVbyte (scalar, svlen);
		1755	size_t len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	addr = (void *)(((intptr_t)addr) + offset);
		1767	eio_page_align (&addr, &len);
1395	#if _POSIX_MEMLOCK	1768	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1769	RETVAL = munlock (addr, len);
1397	extern int mallopt (int, int);
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399	#endif
1400	mlockall (flags);
1401	#else	1770	#else
1402	RETVAL = -1;	1771	RETVAL = ((errno = ENOSYS), -1);
1403	errno = ENOSYS;
1404	#endif	1772	#endif
		1773	}
1405	OUTPUT:	1774	OUTPUT:
1406	RETVAL	1775	RETVAL
1407		1776
1408	int	1777	int
1409	munlockall ()	1778	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1779	CODE:
1412	#if _POSIX_MEMLOCK	1780	#if _POSIX_MEMLOCK
1413	munlockall ();	1781	munlockall ();
1414	#else	1782	#else
1415	RETVAL = -1;	1783	RETVAL = -1;
…		…
1423	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		1793
1426	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1427		1795
		1796	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1797
		1798	BOOT:
		1799	{
		1800	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1801	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1802	}
		1803
		1804	void
		1805	DESTROY (SV *self)
		1806	CODE:
		1807	{
		1808	aio_wd wd = SvAIO_WD (self);
		1809	#if HAVE_AT
		1810	{
		1811	SV *callback = &PL_sv_undef;
		1812	dREQ; /* clobbers next_pri :/ */
		1813	next_pri = req->pri; /* restore next_pri */
		1814	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1815	req->type = EIO_WD_CLOSE;
		1816	req->wd = wd;
		1817	REQ_SEND;
		1818	}
		1819	#else
		1820	eio_wd_close_sync (wd);
		1821	#endif
		1822	}
		1823
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		1825
1430	void	1826	void
1431	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1432	CODE:	1828	CODE:

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