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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.154 by root, Wed Jul 15 01:39:15 2009 UTC vs.
Revision 1.203 by root, Thu Sep 29 23:06:24 2011 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
20	/* perl namespace pollution */	24	/* perl namespace pollution */
21	#undef VERSION	25	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		26
72	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	29	#undef readdir
75	#undef opendir	30	#undef opendir
76	#undef closedir	31	#undef closedir
		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
77		76
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
79		78
80	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	98	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	99	#define expect_true(expr) expect ((expr) != 0, 1)
101		100
102	/*****************************************************************************/	101	/*****************************************************************************/
103		102
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
108		106
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		108
112	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
113	SV *callback; \	110	SV *callback; \
114	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
115	STRLEN stroffset; \	113	STRLEN stroffset; \
116	SV *self;	114	SV *self;
117		115
118	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
119		117
		118	#include "libeio/config.h"
120	#include "libeio/eio.h"	119	#include "libeio/eio.h"
121
122	#ifndef POSIX_FADV_NORMAL
123	# define POSIX_FADV_NORMAL 0
124	# define NO_FADVISE 1
125	#endif
126
127	#ifndef POSIX_FADV_SEQUENTIAL
128	# define POSIX_FADV_SEQUENTIAL 0
129	#endif
130
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138
139	#ifndef POSIX_FADV_WILLNEED
140	# define POSIX_FADV_WILLNEED 0
141	#endif
142
143	#ifndef POSIX_FADV_DONTNEED
144	# define POSIX_FADV_DONTNEED 0
145	#endif
146		120
147	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
151		125
		126	#include "libeio/eio.c"
		127
		128	/* Linux/others */
		129	#ifndef O_ASYNC
		130	# define O_ASYNC 0
		131	#endif
		132	#ifndef O_DIRECT
		133	# define O_DIRECT 0
		134	#endif
		135	#ifndef O_NOATIME
		136	# define O_NOATIME 0
		137	#endif
		138
		139	/* POSIX */
		140	#ifndef O_CLOEXEC
		141	# define O_CLOEXEC 0
		142	#endif
		143	#ifndef O_NOFOLLOW
		144	# define O_NOFOLLOW 0
		145	#endif
		146	#ifndef O_NOCTTY
		147	# define O_NOCTTY 0
		148	#endif
		149	#ifndef O_NONBLOCK
		150	# define O_NONBLOCK 0
		151	#endif
		152	#ifndef O_EXEC
		153	# define O_EXEC 0
		154	#endif
		155	#ifndef O_SEARCH
		156	# define O_SEARCH 0
		157	#endif
		158	#ifndef O_DIRECTORY
		159	# define O_DIRECTORY 0
		160	#endif
		161	#ifndef O_DSYNC
		162	# define O_DSYNC 0
		163	#endif
		164	#ifndef O_RSYNC
		165	# define O_RSYNC 0
		166	#endif
		167	#ifndef O_SYNC
		168	# define O_SYNC 0
		169	#endif
		170	#ifndef O_TTY_INIT
		171	# define O_TTY_INIT 0
		172	#endif
		173
		174	#ifndef POSIX_FADV_NORMAL
		175	# define POSIX_FADV_NORMAL 0
		176	#endif
		177	#ifndef POSIX_FADV_SEQUENTIAL
		178	# define POSIX_FADV_SEQUENTIAL 0
		179	#endif
		180	#ifndef POSIX_FADV_RANDOM
		181	# define POSIX_FADV_RANDOM 0
		182	#endif
		183	#ifndef POSIX_FADV_NOREUSE
		184	# define POSIX_FADV_NOREUSE 0
		185	#endif
		186	#ifndef POSIX_FADV_WILLNEED
		187	# define POSIX_FADV_WILLNEED 0
		188	#endif
		189	#ifndef POSIX_FADV_DONTNEED
		190	# define POSIX_FADV_DONTNEED 0
		191	#endif
		192
		193	#if !HAVE_POSIX_FADVISE
		194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		195	#endif
		196
		197	#ifndef POSIX_MADV_NORMAL
		198	# define POSIX_MADV_NORMAL 0
		199	#endif
		200	#ifndef POSIX_MADV_SEQUENTIAL
		201	# define POSIX_MADV_SEQUENTIAL 0
		202	#endif
		203	#ifndef POSIX_MADV_RANDOM
		204	# define POSIX_MADV_RANDOM 0
		205	#endif
		206	#ifndef POSIX_MADV_WILLNEED
		207	# define POSIX_MADV_WILLNEED 0
		208	#endif
		209	#ifndef POSIX_MADV_DONTNEED
		210	# define POSIX_MADV_DONTNEED 0
		211	#endif
		212
		213	#if !HAVE_POSIX_MADVISE
		214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		215	#endif
		216
		217	#ifndef PROT_NONE
		218	# define PROT_NONE 0
		219	#endif
		220	#ifndef PROT_READ
		221	# define PROT_READ 0
		222	#endif
		223	#ifndef PROT_WRITE
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_EXEC
		227	# define PROT_EXEC 0
		228	#endif
		229
		230	#ifndef ST_RDONLY
		231	# define ST_RDONLY 0
		232	#endif
		233	#ifndef ST_NOSUID
		234	# define ST_NOSUID 0
		235	#endif
		236	#ifndef ST_NODEV
		237	# define ST_NODEV 0
		238	#endif
		239	#ifndef ST_NOEXEC
		240	# define ST_NOEXEC 0
		241	#endif
		242	#ifndef ST_SYNCHRONOUS
		243	# define ST_SYNCHRONOUS 0
		244	#endif
		245	#ifndef ST_MANDLOCK
		246	# define ST_MANDLOCK 0
		247	#endif
		248	#ifndef ST_WRITE
		249	# define ST_WRITE 0
		250	#endif
		251	#ifndef ST_APPEND
		252	# define ST_APPEND 0
		253	#endif
		254	#ifndef ST_IMMUTABLE
		255	# define ST_IMMUTABLE 0
		256	#endif
		257	#ifndef ST_NOATIME
		258	# define ST_NOATIME 0
		259	#endif
		260	#ifndef ST_NODIRATIME
		261	# define ST_NODIRATIME 0
		262	#endif
		263	#ifndef ST_RELATIME
		264	# define ST_RELATIME 0
		265	#endif
		266
		267	#ifndef S_IFIFO
		268	# define S_IFIFO 0
		269	#endif
		270	#ifndef S_IFCHR
		271	# define S_IFCHR 0
		272	#endif
		273	#ifndef S_IFBLK
		274	# define S_IFBLK 0
		275	#endif
		276	#ifndef S_IFLNK
		277	# define S_IFLNK 0
		278	#endif
		279	#ifndef S_IFREG
		280	# define S_IFREG 0
		281	#endif
		282	#ifndef S_IFDIR
		283	# define S_IFDIR 0
		284	#endif
		285	#ifndef S_IFWHT
		286	# define S_IFWHT 0
		287	#endif
		288	#ifndef S_IFSOCK
		289	# define S_IFSOCK 0
		290	#endif
		291
		292	#ifndef MAP_ANONYMOUS
		293	# ifdef MAP_ANON
		294	# define MAP_ANONYMOUS MAP_ANON
		295	# else
		296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		297	# endif
		298	#endif
		299	#ifndef MAP_HUGETLB
		300	# define MAP_HUGETLB 0
		301	#endif
		302	#ifndef MAP_LOCKED
		303	# define MAP_LOCKED 0
		304	#endif
		305	#ifndef MAP_NORESERVE
		306	# define MAP_NORESERVE 0
		307	#endif
		308	#ifndef MAP_POPULATE
		309	# define MAP_POPULATE 0
		310	#endif
		311	#ifndef MAP_NONBLOCK
		312	# define MAP_NONBLOCK 0
		313	#endif
		314
		315	#ifndef makedev
		316	# define makedev(maj,min) (((maj) << 8) | (min))
		317	#endif
		318	#ifndef major
		319	# define major(dev) ((dev) >> 8)
		320	#endif
		321	#ifndef minor
		322	# define minor(dev) ((dev) & 0xff)
		323	#endif
		324
		325	#ifndef PAGESIZE
		326	# define PAGESIZE sysconf (_SC_PAGESIZE)
		327	#endif
		328
152	enum {	329	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	331	};
155		332
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
		335	typedef eio_wd aio_wd;
160		336
161	static SV *on_next_submit;	337	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	338	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	339	static int max_outstanding;
164		340
165	static s_epipe respipe;	341	static s_epipe respipe;
166		342
167	static void req_destroy (aio_req req);	343	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	344	static void req_cancel (aio_req req);
169		345
170	static void want_poll (void)	346	static void
		347	want_poll (void)
171	{	348	{
172	/* write a dummy byte to the pipe so fh becomes ready */	349	/* write a dummy byte to the pipe so fh becomes ready */
173	s_epipe_signal (&respipe);	350	s_epipe_signal (&respipe);
174	}	351	}
175		352
176	static void done_poll (void)	353	static void
		354	done_poll (void)
177	{	355	{
178	/* read any signals sent by the worker threads */	356	/* read any signals sent by the worker threads */
179	s_epipe_drain (&respipe);	357	s_epipe_drain (&respipe);
180	}	358	}
181		359
182	/* must be called at most once */	360	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	361	static SV *
		362	req_sv (aio_req req, HV *stash)
184	{	363	{
185	if (!req->self)	364	if (!req->self)
186	{	365	{
187	req->self = (SV *)newHV ();	366	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	367	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	368	}
190		369
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	370	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	371	}
193		372
194	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)
195	{	381	{
196	MAGIC *mg;	382	MAGIC *mg;
197		383
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	384	if (!SvROK (sv)
		385	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		386	&& SvSTASH (SvRV (sv)) != aio_req_stash
		387	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	388	croak ("object of class IO::AIO::REQ expected");
200		389
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	390	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		391
203	return mg ? (aio_req)mg->mg_ptr : 0;	392	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	393	}
205		394
		395	static aio_wd
		396	SvAIO_WD (SV *sv)
		397	{
		398	if (!SvROK (sv)
		399	|| SvSTASH (SvRV (sv)) != aio_wd_stash
		400	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
		401	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		402
		403	return (aio_wd)(long)SvIVX (SvRV (sv));
		404	}
		405
		406	static void
206	static void aio_grp_feed (aio_req grp)	407	aio_grp_feed (aio_req grp)
207	{	408	{
208	if (grp->sv2 && SvOK (grp->sv2))	409	if (grp->sv2 && SvOK (grp->sv2))
209	{	410	{
210	dSP;	411	dSP;
211		412
212	ENTER;	413	ENTER;
213	SAVETMPS;	414	SAVETMPS;
214	PUSHMARK (SP);	415	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	416	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	417	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	418	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	419	SPAGAIN;
219	FREETMPS;	420	FREETMPS;
220	LEAVE;	421	LEAVE;
221	}	422	}
222	}	423	}
223		424
		425	static void
224	static void req_submit (eio_req *req)	426	req_submit (eio_req *req)
225	{	427	{
226	eio_submit (req);	428	eio_submit (req);
227		429
228	if (expect_false (on_next_submit))	430	if (expect_false (on_next_submit))
229	{	431	{
…		…
236	PUTBACK;	438	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	439	call_sv (cb, G_DISCARD | G_EVAL);
238	}	440	}
239	}	441	}
240		442
		443	static int
241	static int req_invoke (eio_req *req)	444	req_invoke (eio_req *req)
242	{	445	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	446	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	447	SvREADONLY_off (req->sv2);
247		448
248	if (!EIO_CANCELLED (req) && req->callback)	449	if (!EIO_CANCELLED (req) && req->callback)
249	{	450	{
		451	dSP;
		452	static SV *sv_result_cache; /* caches the result integer SV */
		453	SV *sv_result;
		454
250	ENTER;	455	ENTER;
251	SAVETMPS;	456	SAVETMPS;
252	PUSHMARK (SP);	457	PUSHMARK (SP);
253	EXTEND (SP, 1);	458	EXTEND (SP, 1);
254		459
		460	/* do not recreate the result IV from scratch each time */
		461	if (expect_true (sv_result_cache))
		462	{
		463	sv_result = sv_result_cache; sv_result_cache = 0;
		464	SvIV_set (sv_result, req->result);
		465	SvIOK_only (sv_result);
		466	}
		467	else
		468	{
		469	sv_result = newSViv (req->result);
		470	SvREADONLY_on (sv_result);
		471	}
		472
255	switch (req->type)	473	switch (req->type)
256	{	474	{
		475	case EIO_WD_OPEN:
		476	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		477	break;
		478
257	case EIO_READDIR:	479	case EIO_READDIR:
258	{	480	{
259	SV *rv = &PL_sv_undef;	481	SV *rv = &PL_sv_undef;
260		482
261	if (req->result >= 0)	483	if (req->result >= 0)
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	548	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	549	char sym [64];
328	int symlen;	550	int symlen;
329		551
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	552	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	553	gv_init (gv, aio_stash, sym, symlen, 0);
332		554
333	symlen = snprintf (	555	symlen = snprintf (
334	sym,	556	sym,
335	sizeof (sym),	557	sizeof (sym),
336	"%s&=%d",	558	"%s&=%d",
…		…
344		566
345	PUSHs (fh);	567	PUSHs (fh);
346	}	568	}
347	break;	569	break;
348		570
		571	case EIO_STATVFS:
		572	case EIO_FSTATVFS:
		573	{
		574	SV *rv = &PL_sv_undef;
		575
		576	#ifndef _WIN32
		577	if (req->result >= 0)
		578	{
		579	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		580	HV *hv = newHV ();
		581
		582	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		583
		584	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		585	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		586	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		587	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		588	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		589	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		590	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		591	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		592	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		593	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		594	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		595	}
		596	#endif
		597
		598	PUSHs (rv);
		599	}
		600
		601	break;
		602
349	case EIO_GROUP:	603	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	604	req->int1 = 2; /* mark group as finished */
351		605
352	if (req->sv1)	606	if (req->sv1)
353	{	607	{
…		…
363	case EIO_NOP:	617	case EIO_NOP:
364	case EIO_BUSY:	618	case EIO_BUSY:
365	break;	619	break;
366		620
367	case EIO_READLINK:	621	case EIO_READLINK:
		622	case EIO_REALPATH:
368	if (req->result > 0)	623	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	624	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	625	break;
371		626
372	case EIO_STAT:	627	case EIO_STAT:
373	case EIO_LSTAT:	628	case EIO_LSTAT:
374	case EIO_FSTAT:	629	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	630	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		631
376	PL_laststatval = req->result;	632	if (!(PL_laststatval = req->result))
		633	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	634	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	635
		636	PUSHs (sv_result);
379	break;	637	break;
380		638
381	case EIO_READ:	639	case EIO_READ:
382	{	640	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	641	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	642	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	643	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	644	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	645	PUSHs (sv_result);
388	}	646	}
389	break;	647	break;
390		648
391	case EIO_DUP2:	649	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	650	if (req->result > 0)
393	req->result = 0;	651	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	652	/* FALLTHROUGH */
395		653
396	default:	654	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	655	PUSHs (sv_result);
398	break;	656	break;
399	}	657	}
400		658
401	errno = req->errorno;	659	errno = req->errorno;
402		660
403	PUTBACK;	661	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	662	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	663	SPAGAIN;
406		664
		665	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		666	SvREFCNT_dec (sv_result);
		667	else
		668	sv_result_cache = sv_result;
		669
407	FREETMPS;	670	FREETMPS;
408	LEAVE;	671	LEAVE;
409		672
410	PUTBACK;	673	PUTBACK;
411	}	674	}
412		675
413	return !!SvTRUE (ERRSV);	676	return !!SvTRUE (ERRSV);
414	}	677	}
415		678
		679	static void
416	static void req_destroy (aio_req req)	680	req_destroy (aio_req req)
417	{	681	{
418	if (req->self)	682	if (req->self)
419	{	683	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	684	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	685	SvREFCNT_dec (req->self);
422	}	686	}
423		687
424	SvREFCNT_dec (req->sv1);	688	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	689	SvREFCNT_dec (req->sv2);
		690	SvREFCNT_dec (req->sv3);
		691	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	692	SvREFCNT_dec (req->callback);
427		693
428	Safefree (req);	694	Safefree (req);
429	}	695	}
430		696
		697	static void
431	static void req_cancel_subs (aio_req grp)	698	req_cancel_subs (aio_req grp)
432	{	699	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	700	if (grp->type != EIO_GROUP)
436	return;	701	return;
437		702
438	SvREFCNT_dec (grp->sv2);	703	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	704	grp->sv2 = 0;
440		705
441	eio_grp_cancel (grp);	706	eio_grp_cancel (grp);
442	}	707	}
443		708
		709	static void ecb_cold
		710	create_respipe (void)
		711	{
		712	if (s_epipe_renew (&respipe))
		713	croak ("IO::AIO: unable to initialize result pipe");
		714	}
		715
444	static void	716	static void
445	create_respipe (void)	717	poll_wait (void)
446	{
447	if (s_epipe_renew (&respipe))
448	croak ("unable to initialize result pipe");
449	}
450
451	static void poll_wait (void)
452	{	718	{
453	while (eio_nreqs ())	719	while (eio_nreqs ())
454	{	720	{
455	int size;	721	int size;
456		722
…		…
465		731
466	s_epipe_wait (&respipe);	732	s_epipe_wait (&respipe);
467	}	733	}
468	}	734	}
469		735
470	static int poll_cb (void)	736	static int
		737	poll_cb (void)
471	{	738	{
472	for (;;)	739	for (;;)
473	{	740	{
474	int res = eio_poll ();	741	int res = eio_poll ();
475		742
…		…
481		748
482	poll_wait ();	749	poll_wait ();
483	}	750	}
484	}	751	}
485		752
486	static void atfork_child (void)	753	static void ecb_cold
		754	reinit (void)
487	{	755	{
488	create_respipe ();	756	create_respipe ();
		757
		758	if (eio_init (want_poll, done_poll) < 0)
		759	croak ("IO::AIO: unable to initialise eio library");
489	}	760	}
		761
		762	/*****************************************************************************/
		763
		764	#if !_POSIX_MAPPED_FILES
		765	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		766	# define munmap(addr,length) (errno = ENOSYS, -1)
		767	#endif
		768
		769	#if !_POSIX_MEMORY_PROTECTION
		770	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		771	# define PROT_NONE 0
		772	# define PROT_WRITE 0
		773	# define MAP_PRIVATE 0
		774	# define MAP_SHARED 0
		775	# define MAP_FIXED 0
		776	#endif
		777
		778	#define MMAP_MAGIC PERL_MAGIC_ext
		779
		780	static int ecb_cold
		781	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		782	{
		783	int old_errno = errno;
		784	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		785	errno = old_errno;
		786
		787	mg->mg_obj = 0; /* just in case */
		788
		789	SvREADONLY_off (sv);
		790
		791	if (SvPVX (sv) != mg->mg_ptr)
		792	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		793
		794	SvCUR_set (sv, 0);
		795	SvPVX (sv) = 0;
		796	SvOK_off (sv);
		797
		798	return 0;
		799	}
		800
		801	static MGVTBL mmap_vtbl = {
		802	0, 0, 0, 0, mmap_free
		803	};
		804
		805	/*****************************************************************************/
490		806
491	static SV *	807	static SV *
492	get_cb (SV *cb_sv)	808	get_cb (SV *cb_sv)
493	{	809	{
494	SvGETMAGIC (cb_sv);	810	SvGETMAGIC (cb_sv);
495	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	811	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
496	}	812	}
497		813
		814	static aio_req ecb_noinline
		815	dreq (SV *callback)
		816	{
		817	SV *cb_cv;
		818	aio_req req;
		819	int req_pri = next_pri;
		820	next_pri = EIO_PRI_DEFAULT;
		821
		822	cb_cv = get_cb (callback);
		823
		824	Newz (0, req, 1, eio_req);
		825	if (!req)
		826	croak ("out of memory during eio_req allocation");
		827
		828	req->callback = SvREFCNT_inc (cb_cv);
		829	req->pri = req_pri;
		830
		831	return req;
		832	}
		833
498	#define dREQ \	834	#define dREQ \
499	SV *cb_cv; \	835	aio_req req = dreq (callback); \
500	aio_req req; \
501	int req_pri = next_pri; \
502	next_pri = EIO_PRI_DEFAULT; \
503	\
504	cb_cv = get_cb (callback); \
505	\
506	Newz (0, req, 1, eio_req); \
507	if (!req) \
508	croak ("out of memory during eio_req allocation"); \
509	\
510	req->callback = SvREFCNT_inc (cb_cv); \
511	req->pri = req_pri
512		836
513	#define REQ_SEND \	837	#define REQ_SEND \
514	PUTBACK; \	838	PUTBACK; \
515	req_submit (req); \	839	req_submit (req); \
516	SPAGAIN; \	840	SPAGAIN; \
517	\	841	\
518	if (GIMME_V != G_VOID) \	842	if (GIMME_V != G_VOID) \
519	XPUSHs (req_sv (req, AIO_REQ_KLASS));	843	XPUSHs (req_sv (req, aio_req_stash));
		844
		845	ecb_inline void
		846	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		847	{
		848	if (expect_false (SvROK (path)))
		849	{
		850	AV *av = (AV *)SvRV (path);
		851	SV *wdob;
		852
		853	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
		854	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
		855
		856	path = AvARRAY (av)[1];
		857	wdob = AvARRAY (av)[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
		868	*pathsv = newSVsv (path);
		869	*ptr = SvPVbyte_nolen (*pathsv);
		870	}
		871
		872	static void ecb_noinline
		873	req_set_path1 (aio_req req, SV *path)
		874	{
		875	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		876	}
		877
		878	static void ecb_noinline
		879	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		880	{
		881	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		882
		883	switch (SvTYPE (rv))
		884	{
		885	case SVt_PVIO:
		886	case SVt_PVLV:
		887	case SVt_PVGV:
		888	req->type = type_fh;
		889	req->sv1 = newSVsv (fh_or_path);
		890	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		891	break;
		892
		893	default:
		894	req->type = type_path;
		895	req_set_path1 (req, fh_or_path);
		896	break;
		897	}
		898	}
		899
		900	XS(boot_IO__AIO) ecb_cold;
520		901
521	MODULE = IO::AIO PACKAGE = IO::AIO	902	MODULE = IO::AIO PACKAGE = IO::AIO
522		903
523	PROTOTYPES: ENABLE	904	PROTOTYPES: ENABLE
524		905
…		…
526	{	907	{
527	static const struct {	908	static const struct {
528	const char *name;	909	const char *name;
529	IV iv;	910	IV iv;
530	} *civ, const_iv[] = {	911	} *civ, const_iv[] = {
531	# define const_iv(name, value) { # name, (IV) value },	912	# define const_niv(name, value) { # name, (IV) value },
		913	# define const_iv(name) { # name, (IV) name },
532	# define const_eio(name) { # name, (IV) EIO_ ## name },	914	# define const_eio(name) { # name, (IV) EIO_ ## name },
533	const_iv (EXDEV , EXDEV)	915	const_iv (EXDEV)
534	const_iv (ENOSYS , ENOSYS)	916	const_iv (ENOSYS)
535	const_iv (O_RDONLY, O_RDONLY)	917	const_iv (O_RDONLY)
536	const_iv (O_WRONLY, O_WRONLY)	918	const_iv (O_WRONLY)
		919	const_iv (O_RDWR)
537	const_iv (O_CREAT , O_CREAT)	920	const_iv (O_CREAT)
538	const_iv (O_TRUNC , O_TRUNC)	921	const_iv (O_TRUNC)
539	#ifndef _WIN32	922	const_iv (O_EXCL)
		923	const_iv (O_APPEND)
		924
		925	const_iv (O_ASYNC)
		926	const_iv (O_DIRECT)
		927	const_iv (O_NOATIME)
		928
		929	const_iv (O_CLOEXEC)
		930	const_iv (O_NOCTTY)
		931	const_iv (O_NOFOLLOW)
		932	const_iv (O_NONBLOCK)
		933	const_iv (O_EXEC)
		934	const_iv (O_SEARCH)
		935	const_iv (O_DIRECTORY)
		936	const_iv (O_DSYNC)
		937	const_iv (O_RSYNC)
		938	const_iv (O_SYNC)
		939	const_iv (O_TTY_INIT)
		940
540	const_iv (S_IFIFO , S_IFIFO)	941	const_iv (S_IFIFO)
541	#endif	942	const_iv (S_IFCHR)
		943	const_iv (S_IFBLK)
		944	const_iv (S_IFLNK)
		945	const_iv (S_IFREG)
		946	const_iv (S_IFDIR)
		947	const_iv (S_IFWHT)
		948	const_iv (S_IFSOCK)
		949	const_iv (S_IFMT)
		950
542	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	951	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
543	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	952	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
544	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	953	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
545	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	954	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
546	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	955	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
547	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	956	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		957
		958	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		959	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		960	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		961	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		962	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		963
		964	const_iv (ST_RDONLY)
		965	const_iv (ST_NOSUID)
		966	const_iv (ST_NODEV)
		967	const_iv (ST_NOEXEC)
		968	const_iv (ST_SYNCHRONOUS)
		969	const_iv (ST_MANDLOCK)
		970	const_iv (ST_WRITE)
		971	const_iv (ST_APPEND)
		972	const_iv (ST_IMMUTABLE)
		973	const_iv (ST_NOATIME)
		974	const_iv (ST_NODIRATIME)
		975	const_iv (ST_RELATIME)
		976
		977	const_iv (PROT_NONE)
		978	const_iv (PROT_EXEC)
		979	const_iv (PROT_READ)
		980	const_iv (PROT_WRITE)
		981
		982	/*const_iv (MAP_FIXED)*/
		983	const_iv (MAP_PRIVATE)
		984	const_iv (MAP_SHARED)
		985	const_iv (MAP_ANONYMOUS)
		986
		987	/* linuxish */
		988	const_iv (MAP_HUGETLB)
		989	const_iv (MAP_LOCKED)
		990	const_iv (MAP_NORESERVE)
		991	const_iv (MAP_POPULATE)
		992	const_iv (MAP_NONBLOCK)
		993
		994	const_eio (MCL_FUTURE)
		995	const_eio (MCL_CURRENT)
		996
		997	const_eio (MS_ASYNC)
		998	const_eio (MS_INVALIDATE)
		999	const_eio (MS_SYNC)
		1000
		1001	const_eio (MT_MODIFY)
548		1002
549	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1003	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
550	const_eio (SYNC_FILE_RANGE_WRITE)	1004	const_eio (SYNC_FILE_RANGE_WRITE)
551	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1005	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1006
		1007	const_eio (FALLOC_FL_KEEP_SIZE)
552		1008
553	const_eio (READDIR_DENTS)	1009	const_eio (READDIR_DENTS)
554	const_eio (READDIR_DIRS_FIRST)	1010	const_eio (READDIR_DIRS_FIRST)
555	const_eio (READDIR_STAT_ORDER)	1011	const_eio (READDIR_STAT_ORDER)
556	const_eio (READDIR_FOUND_UNKNOWN)	1012	const_eio (READDIR_FOUND_UNKNOWN)
…		…
564	const_eio (DT_LNK)	1020	const_eio (DT_LNK)
565	const_eio (DT_SOCK)	1021	const_eio (DT_SOCK)
566	const_eio (DT_WHT)	1022	const_eio (DT_WHT)
567	};	1023	};
568		1024
569	stash = gv_stashpv ("IO::AIO", 1);	1025	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1026	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1027	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1028	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
570		1029
571	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1030	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
572	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1031	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
573		1032
574	create_respipe ();	1033	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
575		1034
576	if (eio_init (want_poll, done_poll) < 0)	1035	reinit ();
577	croak ("IO::AIO: unable to initialise eio library");
578
579	/* atfork child called in fifo order, so before eio's handler */
580	X_THREAD_ATFORK (0, 0, atfork_child);
581	}	1036	}
582		1037
583	void	1038	void
		1039	reinit ()
		1040	PROTOTYPE:
		1041
		1042	void
584	max_poll_reqs (int nreqs)	1043	max_poll_reqs (unsigned int nreqs)
585	PROTOTYPE: $	1044	PROTOTYPE: $
586	CODE:	1045	CODE:
587	eio_set_max_poll_reqs (nreqs);	1046	eio_set_max_poll_reqs (nreqs);
588		1047
589	void	1048	void
…		…
591	PROTOTYPE: $	1050	PROTOTYPE: $
592	CODE:	1051	CODE:
593	eio_set_max_poll_time (nseconds);	1052	eio_set_max_poll_time (nseconds);
594		1053
595	void	1054	void
596	min_parallel (int nthreads)	1055	min_parallel (unsigned int nthreads)
597	PROTOTYPE: $	1056	PROTOTYPE: $
598	CODE:	1057	CODE:
599	eio_set_min_parallel (nthreads);	1058	eio_set_min_parallel (nthreads);
600		1059
601	void	1060	void
602	max_parallel (int nthreads)	1061	max_parallel (unsigned int nthreads)
603	PROTOTYPE: $	1062	PROTOTYPE: $
604	CODE:	1063	CODE:
605	eio_set_max_parallel (nthreads);	1064	eio_set_max_parallel (nthreads);
606		1065
607	void	1066	void
608	max_idle (int nthreads)	1067	max_idle (unsigned int nthreads)
609	PROTOTYPE: $	1068	PROTOTYPE: $
610	CODE:	1069	CODE:
611	eio_set_max_idle (nthreads);	1070	eio_set_max_idle (nthreads);
612		1071
613	void	1072	void
		1073	idle_timeout (unsigned int seconds)
		1074	PROTOTYPE: $
		1075	CODE:
		1076	eio_set_idle_timeout (seconds);
		1077
		1078	void
614	max_outstanding (int maxreqs)	1079	max_outstanding (unsigned int maxreqs)
615	PROTOTYPE: $	1080	PROTOTYPE: $
616	CODE:	1081	CODE:
617	max_outstanding = maxreqs;	1082	max_outstanding = maxreqs;
618		1083
619	void	1084	void
		1085	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1086	PPCODE:
		1087	{
		1088	dREQ;
		1089
		1090	req->type = EIO_WD_OPEN;
		1091	req_set_path1 (req, pathname);
		1092
		1093	REQ_SEND;
		1094	}
		1095
		1096	void
620	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1097	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
621	PROTOTYPE: $$$;$
622	PPCODE:	1098	PPCODE:
623	{	1099	{
624	dREQ;	1100	dREQ;
625		1101
626	req->type = EIO_OPEN;	1102	req->type = EIO_OPEN;
627	req->sv1 = newSVsv (pathname);	1103	req_set_path1 (req, pathname);
628	req->ptr1 = SvPVbyte_nolen (req->sv1);
629	req->int1 = flags;	1104	req->int1 = flags;
630	req->int2 = mode;	1105	req->int2 = mode;
631		1106
632	REQ_SEND;	1107	REQ_SEND;
633	}	1108	}
634		1109
635	void	1110	void
636	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1111	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
637	PROTOTYPE: $;$
638	ALIAS:	1112	ALIAS:
639	aio_fsync = EIO_FSYNC	1113	aio_fsync = EIO_FSYNC
640	aio_fdatasync = EIO_FDATASYNC	1114	aio_fdatasync = EIO_FDATASYNC
		1115	aio_syncfs = EIO_SYNCFS
641	PPCODE:	1116	PPCODE:
642	{	1117	{
643	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
644	dREQ;	1119	dREQ;
645		1120
…		…
650	REQ_SEND (req);	1125	REQ_SEND (req);
651	}	1126	}
652		1127
653	void	1128	void
654	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1129	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
655	PROTOTYPE: $$$$;$
656	PPCODE:	1130	PPCODE:
657	{	1131	{
658	int fd = s_fileno_croak (fh, 0);	1132	int fd = s_fileno_croak (fh, 0);
659	dREQ;	1133	dREQ;
660		1134
…		…
667		1141
668	REQ_SEND (req);	1142	REQ_SEND (req);
669	}	1143	}
670		1144
671	void	1145	void
672	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1146	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
673	PROTOTYPE: $;$
674	PPCODE:	1147	PPCODE:
675	{	1148	{
676	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
677	int fd = s_fileno_croak (fh, 0);	1149	int fd = s_fileno_croak (fh, 0);
678	dREQ;	1150	dREQ;
679		1151
680	if (close_pipe < 0)	1152	req->type = EIO_FALLOCATE;
		1153	req->sv1 = newSVsv (fh);
		1154	req->int1 = fd;
		1155	req->int2 = mode;
		1156	req->offs = offset;
		1157	req->size = len;
		1158
		1159	REQ_SEND (req);
		1160	}
		1161
		1162	void
		1163	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1164	PPCODE:
		1165	{
		1166	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1167	int fd = s_fileno_croak (fh, 0);
		1168	dREQ;
		1169
		1170	if (expect_false (close_fd < 0))
681	{	1171	{
682	int pipefd [2];	1172	int pipefd [2];
683		1173
		1174	if (
		1175	#ifdef _WIN32
		1176	_pipe (pipefd, 1, _O_BINARY) < 0
		1177	#else
684	if (pipe (pipefd) < 0	1178	pipe (pipefd) < 0
685	|| close (pipefd [1]) < 0
686	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1179	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1180	#endif
		1181	|| close (pipefd [1]) < 0
		1182	)
687	abort (); /*D*/	1183	abort (); /*D*/
688		1184
689	close_pipe = pipefd [0];	1185	close_fd = pipefd [0];
690	}	1186	}
691		1187
692	req->type = EIO_DUP2;	1188	req->type = EIO_DUP2;
693	req->int1 = close_pipe;	1189	req->int1 = close_fd;
694	req->sv2 = newSVsv (fh);	1190	req->sv2 = newSVsv (fh);
695	req->int2 = fd;	1191	req->int2 = fd;
696		1192
697	REQ_SEND (req);	1193	REQ_SEND (req);
698	}	1194	}
…		…
700	void	1196	void
701	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
702	ALIAS:	1198	ALIAS:
703	aio_read = EIO_READ	1199	aio_read = EIO_READ
704	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
705	PROTOTYPE: $$$$$;$
706	PPCODE:	1201	PPCODE:
707	{	1202	{
708	STRLEN svlen;	1203	STRLEN svlen;
709	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
710	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
…		…
750	REQ_SEND;	1245	REQ_SEND;
751	}	1246	}
752	}	1247	}
753		1248
754	void	1249	void
755	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1250	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
756	PROTOTYPE: $$;$	1251	ALIAS:
		1252	aio_readlink = EIO_READLINK
		1253	aio_realpath = EIO_REALPATH
757	PPCODE:	1254	PPCODE:
758	{	1255	{
759	SV *data;
760	dREQ;	1256	dREQ;
761		1257
762	req->type = EIO_READLINK;	1258	req->type = ix;
763	req->sv1 = newSVsv (path);	1259	req_set_path1 (req, pathname);
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765		1260
766	REQ_SEND;	1261	REQ_SEND;
767	}	1262	}
768		1263
769	void	1264	void
770	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1265	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
771	PROTOTYPE: $$$$;$
772	PPCODE:	1266	PPCODE:
773	{	1267	{
774	int ifd = s_fileno_croak (in_fh , 0);	1268	int ifd = s_fileno_croak (in_fh , 0);
775	int ofd = s_fileno_croak (out_fh, 1);	1269	int ofd = s_fileno_croak (out_fh, 1);
776	dREQ;	1270	dREQ;
…		…
786	REQ_SEND;	1280	REQ_SEND;
787	}	1281	}
788		1282
789	void	1283	void
790	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1284	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
791	PROTOTYPE: $$$;$
792	PPCODE:	1285	PPCODE:
793	{	1286	{
794	int fd = s_fileno_croak (fh, 0);	1287	int fd = s_fileno_croak (fh, 0);
795	dREQ;	1288	dREQ;
796		1289
…		…
804	}	1297	}
805		1298
806	void	1299	void
807	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1300	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
808	ALIAS:	1301	ALIAS:
809	aio_stat = EIO_STAT	1302	aio_stat = EIO_STAT
810	aio_lstat = EIO_LSTAT	1303	aio_lstat = EIO_LSTAT
		1304	aio_statvfs = EIO_STATVFS
811	PPCODE:	1305	PPCODE:
812	{	1306	{
813	dREQ;	1307	dREQ;
814		1308
815	req->sv1 = newSVsv (fh_or_path);	1309	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
816
817	if (SvPOK (req->sv1))
818	{
819	req->type = ix;
820	req->ptr1 = SvPVbyte_nolen (req->sv1);
821	}
822	else
823	{
824	req->type = EIO_FSTAT;
825	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
826	}
827		1310
828	REQ_SEND;	1311	REQ_SEND;
829	}	1312	}
		1313
		1314	UV
		1315	major (UV dev)
		1316	ALIAS:
		1317	minor = 1
		1318	CODE:
		1319	RETVAL = ix ? major (dev) : minor (dev);
		1320	OUTPUT:
		1321	RETVAL
		1322
		1323	UV
		1324	makedev (UV maj, UV min)
		1325	CODE:
		1326	RETVAL = makedev (maj, min);
		1327	OUTPUT:
		1328	RETVAL
830		1329
831	void	1330	void
832	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1331	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
833	PPCODE:	1332	PPCODE:
834	{	1333	{
835	dREQ;	1334	dREQ;
836		1335
837	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1336	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
838	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1337	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
839	req->sv1 = newSVsv (fh_or_path);	1338	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
840
841	if (SvPOK (req->sv1))
842	{
843	req->type = EIO_UTIME;
844	req->ptr1 = SvPVbyte_nolen (req->sv1);
845	}
846	else
847	{
848	req->type = EIO_FUTIME;
849	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850	}
851		1339
852	REQ_SEND;	1340	REQ_SEND;
853	}	1341	}
854		1342
855	void	1343	void
856	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1344	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
857	PPCODE:	1345	PPCODE:
858	{	1346	{
859	dREQ;	1347	dREQ;
860		1348
861	req->sv1 = newSVsv (fh_or_path);
862	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1349	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
863		1350	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
864	if (SvPOK (req->sv1))
865	{
866	req->type = EIO_TRUNCATE;
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	}
869	else
870	{
871	req->type = EIO_FTRUNCATE;
872	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
873	}
874		1351
875	REQ_SEND;	1352	REQ_SEND;
876	}	1353	}
877		1354
878	void	1355	void
879	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1356	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
880	ALIAS:
881	aio_chmod = EIO_CHMOD
882	aio_mkdir = EIO_MKDIR
883	PPCODE:	1357	PPCODE:
884	{	1358	{
885	dREQ;	1359	dREQ;
886		1360
887	req->int2 = mode;	1361	req->int2 = mode;
888	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
889
890	if (SvPOK (req->sv1))
891	{
892	req->type = ix;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FCHMOD;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1363
901	REQ_SEND;	1364	REQ_SEND;
902	}	1365	}
903		1366
904	void	1367	void
…		…
907	{	1370	{
908	dREQ;	1371	dREQ;
909		1372
910	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1373	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
911	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1374	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
912	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
913
914	if (SvPOK (req->sv1))
915	{
916	req->type = EIO_CHOWN;
917	req->ptr1 = SvPVbyte_nolen (req->sv1);
918	}
919	else
920	{
921	req->type = EIO_FCHOWN;
922	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
923	}
924		1376
925	REQ_SEND;	1377	REQ_SEND;
926	}	1378	}
927		1379
928	void	1380	void
…		…
930	PPCODE:	1382	PPCODE:
931	{	1383	{
932	dREQ;	1384	dREQ;
933		1385
934	req->type = EIO_READDIR;	1386	req->type = EIO_READDIR;
935	req->sv1 = newSVsv (pathname);
936	req->ptr1 = SvPVbyte_nolen (req->sv1);
937	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1387	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
938		1388
939	if (flags & EIO_READDIR_DENTS)	1389	if (flags & EIO_READDIR_DENTS)
940	req->int1 |= EIO_READDIR_CUSTOM2;	1390	req->int1 |= EIO_READDIR_CUSTOM2;
941		1391
		1392	req_set_path1 (req, pathname);
		1393
942	REQ_SEND;	1394	REQ_SEND;
		1395	}
		1396
		1397	void
		1398	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1399	PPCODE:
		1400	{
		1401	dREQ;
		1402
		1403	req->type = EIO_MKDIR;
		1404	req->int2 = mode;
		1405	req_set_path1 (req, pathname);
		1406
		1407	REQ_SEND;
943	}	1408	}
944		1409
945	void	1410	void
946	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1411	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
947	ALIAS:	1412	ALIAS:
…		…
951	PPCODE:	1416	PPCODE:
952	{	1417	{
953	dREQ;	1418	dREQ;
954		1419
955	req->type = ix;	1420	req->type = ix;
956	req->sv1 = newSVsv (pathname);	1421	req_set_path1 (req, pathname);
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958		1422
959	REQ_SEND;	1423	REQ_SEND;
960	}	1424	}
961		1425
962	void	1426	void
…		…
966	aio_symlink = EIO_SYMLINK	1430	aio_symlink = EIO_SYMLINK
967	aio_rename = EIO_RENAME	1431	aio_rename = EIO_RENAME
968	PPCODE:	1432	PPCODE:
969	{	1433	{
970	dREQ;	1434	dREQ;
		1435	eio_wd wd2 = 0;
971		1436
972	req->type = ix;	1437	req->type = ix;
973	req->sv1 = newSVsv (oldpath);	1438	req_set_path1 (req, oldpath);
974	req->ptr1 = SvPVbyte_nolen (req->sv1);	1439	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
975	req->sv2 = newSVsv (newpath);	1440	req->int3 = (long)wd2;
976	req->ptr2 = SvPVbyte_nolen (req->sv2);
977		1441
978	REQ_SEND;	1442	REQ_SEND;
979	}	1443	}
980		1444
981	void	1445	void
…		…
983	PPCODE:	1447	PPCODE:
984	{	1448	{
985	dREQ;	1449	dREQ;
986		1450
987	req->type = EIO_MKNOD;	1451	req->type = EIO_MKNOD;
988	req->sv1 = newSVsv (pathname);
989	req->ptr1 = SvPVbyte_nolen (req->sv1);
990	req->int2 = (mode_t)mode;	1452	req->int2 = (mode_t)mode;
991	req->offs = dev;	1453	req->offs = dev;
		1454	req_set_path1 (req, pathname);
992		1455
993	REQ_SEND;	1456	REQ_SEND;
994	}	1457	}
995		1458
996	void	1459	void
		1460	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1461	ALIAS:
		1462	aio_mtouch = EIO_MTOUCH
		1463	aio_msync = EIO_MSYNC
		1464	PPCODE:
		1465	{
		1466	STRLEN svlen;
		1467	char *svptr = SvPVbyte (data, svlen);
		1468	UV len = SvUV (length);
		1469
		1470	if (offset < 0)
		1471	offset += svlen;
		1472
		1473	if (offset < 0 || offset > svlen)
		1474	croak ("offset outside of scalar");
		1475
		1476	if (!SvOK (length) || len + offset > svlen)
		1477	len = svlen - offset;
		1478
		1479	{
		1480	dREQ;
		1481
		1482	req->type = ix;
		1483	req->sv2 = SvREFCNT_inc (data);
		1484	req->ptr2 = (char *)svptr + offset;
		1485	req->size = len;
		1486	req->int1 = flags;
		1487
		1488	REQ_SEND;
		1489	}
		1490	}
		1491
		1492	void
		1493	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1494	PPCODE:
		1495	{
		1496	STRLEN svlen;
		1497	char *svptr = SvPVbyte (data, svlen);
		1498	UV len = SvUV (length);
		1499
		1500	if (offset < 0)
		1501	offset += svlen;
		1502
		1503	if (offset < 0 || offset > svlen)
		1504	croak ("offset outside of scalar");
		1505
		1506	if (!SvOK (length) || len + offset > svlen)
		1507	len = svlen - offset;
		1508
		1509	{
		1510	dREQ;
		1511
		1512	req->type = EIO_MLOCK;
		1513	req->sv2 = SvREFCNT_inc (data);
		1514	req->ptr2 = (char *)svptr + offset;
		1515	req->size = len;
		1516
		1517	REQ_SEND;
		1518	}
		1519	}
		1520
		1521	void
		1522	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1523	PPCODE:
		1524	{
		1525	dREQ;
		1526
		1527	req->type = EIO_MLOCKALL;
		1528	req->int1 = flags;
		1529
		1530	REQ_SEND;
		1531	}
		1532
		1533	void
997	aio_busy (double delay, SV *callback=&PL_sv_undef)	1534	aio_busy (double delay, SV *callback=&PL_sv_undef)
998	PPCODE:	1535	PPCODE:
999	{	1536	{
1000	dREQ;	1537	dREQ;
1001		1538
…		…
1005	REQ_SEND;	1542	REQ_SEND;
1006	}	1543	}
1007		1544
1008	void	1545	void
1009	aio_group (SV *callback=&PL_sv_undef)	1546	aio_group (SV *callback=&PL_sv_undef)
1010	PROTOTYPE: ;$
1011	PPCODE:	1547	PPCODE:
1012	{	1548	{
1013	dREQ;	1549	dREQ;
1014		1550
1015	req->type = EIO_GROUP;	1551	req->type = EIO_GROUP;
1016		1552
1017	req_submit (req);	1553	req_submit (req);
1018	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1554	XPUSHs (req_sv (req, aio_grp_stash));
1019	}	1555	}
1020		1556
1021	void	1557	void
1022	aio_nop (SV *callback=&PL_sv_undef)	1558	aio_nop (SV *callback=&PL_sv_undef)
1023	ALIAS:	1559	ALIAS:
…		…
1032	REQ_SEND;	1568	REQ_SEND;
1033	}	1569	}
1034		1570
1035	int	1571	int
1036	aioreq_pri (int pri = 0)	1572	aioreq_pri (int pri = 0)
1037	PROTOTYPE: ;$
1038	CODE:	1573	CODE:
1039	RETVAL = next_pri;	1574	RETVAL = next_pri;
1040	if (items > 0)	1575	if (items > 0)
1041	{	1576	{
1042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1577	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1589	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1055	next_pri = nice;	1590	next_pri = nice;
1056		1591
1057	void	1592	void
1058	flush ()	1593	flush ()
1059	PROTOTYPE:
1060	CODE:	1594	CODE:
1061	while (eio_nreqs ())	1595	while (eio_nreqs ())
1062	{	1596	{
1063	poll_wait ();	1597	poll_wait ();
1064	poll_cb ();	1598	poll_cb ();
1065	}	1599	}
1066		1600
1067	int	1601	int
1068	poll()	1602	poll ()
1069	PROTOTYPE:
1070	CODE:	1603	CODE:
1071	poll_wait ();	1604	poll_wait ();
1072	RETVAL = poll_cb ();	1605	RETVAL = poll_cb ();
1073	OUTPUT:	1606	OUTPUT:
1074	RETVAL	1607	RETVAL
1075		1608
1076	int	1609	int
1077	poll_fileno()	1610	poll_fileno ()
1078	PROTOTYPE:
1079	CODE:	1611	CODE:
1080	RETVAL = s_epipe_fd (&respipe);	1612	RETVAL = s_epipe_fd (&respipe);
1081	OUTPUT:	1613	OUTPUT:
1082	RETVAL	1614	RETVAL
1083		1615
1084	int	1616	int
1085	poll_cb(...)	1617	poll_cb (...)
1086	PROTOTYPE:	1618	PROTOTYPE:
1087	CODE:	1619	CODE:
1088	RETVAL = poll_cb ();	1620	RETVAL = poll_cb ();
1089	OUTPUT:	1621	OUTPUT:
1090	RETVAL	1622	RETVAL
1091		1623
1092	void	1624	void
1093	poll_wait()	1625	poll_wait ()
1094	PROTOTYPE:
1095	CODE:	1626	CODE:
1096	poll_wait ();	1627	poll_wait ();
1097		1628
1098	int	1629	int
1099	nreqs()	1630	nreqs ()
1100	PROTOTYPE:
1101	CODE:	1631	CODE:
1102	RETVAL = eio_nreqs ();	1632	RETVAL = eio_nreqs ();
1103	OUTPUT:	1633	OUTPUT:
1104	RETVAL	1634	RETVAL
1105		1635
1106	int	1636	int
1107	nready()	1637	nready ()
1108	PROTOTYPE:
1109	CODE:	1638	CODE:
1110	RETVAL = eio_nready ();	1639	RETVAL = eio_nready ();
1111	OUTPUT:	1640	OUTPUT:
1112	RETVAL	1641	RETVAL
1113		1642
1114	int	1643	int
1115	npending()	1644	npending ()
1116	PROTOTYPE:
1117	CODE:	1645	CODE:
1118	RETVAL = eio_npending ();	1646	RETVAL = eio_npending ();
1119	OUTPUT:	1647	OUTPUT:
1120	RETVAL	1648	RETVAL
1121		1649
1122	int	1650	int
1123	nthreads()	1651	nthreads ()
1124	PROTOTYPE:
1125	CODE:	1652	CODE:
1126	RETVAL = eio_nthreads ();	1653	RETVAL = eio_nthreads ();
1127	OUTPUT:	1654	OUTPUT:
1128	RETVAL	1655	RETVAL
1129		1656
1130	int	1657	int
1131	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1658	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1132	PROTOTYPE: $$$$
1133	CODE:	1659	CODE:
1134	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1135	RETVAL = posix_fadvise (fh, offset, length, advice);	1660	RETVAL = posix_fadvise (fh, offset, length, advice);
1136	#else
1137	RETVAL = errno = ENOSYS;
1138	#endif
1139	OUTPUT:	1661	OUTPUT:
1140	RETVAL	1662	RETVAL
1141		1663
1142	ssize_t	1664	IV
1143	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1665	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1144	PROTOTYPE: $$$$
1145	CODE:	1666	CODE:
1146	eio_sendfile_sync (ofh, ifh, offset, count);	1667	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1668	OUTPUT:
		1669	RETVAL
		1670
		1671	void
		1672	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1673	PPCODE:
		1674	sv_unmagic (scalar, MMAP_MAGIC);
		1675	{
		1676	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1677	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1678	if (addr == (void *)-1)
		1679	XSRETURN_NO;
		1680
		1681	sv_force_normal (scalar);
		1682
		1683	/* we store the length in mg_obj, as namlen is I32 :/ */
		1684	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1685	->mg_obj = (SV *)length;
		1686
		1687	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1688
		1689	if (!(prot & PROT_WRITE))
		1690	SvREADONLY_on (scalar);
		1691
		1692	if (SvLEN (scalar))
		1693	Safefree (SvPVX (scalar));
		1694
		1695	SvPVX (scalar) = (char *)addr;
		1696	SvCUR_set (scalar, length);
		1697	SvLEN_set (scalar, 0);
		1698	SvPOK_only (scalar);
		1699
		1700	XSRETURN_YES;
		1701	}
		1702
		1703	void
		1704	munmap (SV *scalar)
		1705	CODE:
		1706	sv_unmagic (scalar, MMAP_MAGIC);
		1707
		1708	int
		1709	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1710	ALIAS:
		1711	mprotect = 1
		1712	CODE:
		1713	{
		1714	STRLEN svlen;
		1715	void *addr = SvPVbyte (scalar, svlen);
		1716	size_t len = SvUV (length);
		1717
		1718	if (offset < 0)
		1719	offset += svlen;
		1720
		1721	if (offset < 0 || offset > svlen)
		1722	croak ("offset outside of scalar");
		1723
		1724	if (!SvOK (length) || len + offset > svlen)
		1725	len = svlen - offset;
		1726
		1727	addr = (void *)(((intptr_t)addr) + offset);
		1728	eio_page_align (&addr, &len);
		1729
		1730	switch (ix)
		1731	{
		1732	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1733	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1734	}
		1735	}
		1736	OUTPUT:
		1737	RETVAL
		1738
		1739	int
		1740	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1741	CODE:
		1742	{
		1743	STRLEN svlen;
		1744	void *addr = SvPVbyte (scalar, svlen);
		1745	size_t len = SvUV (length);
		1746
		1747	if (offset < 0)
		1748	offset += svlen;
		1749
		1750	if (offset < 0 || offset > svlen)
		1751	croak ("offset outside of scalar");
		1752
		1753	if (!SvOK (length) || len + offset > svlen)
		1754	len = svlen - offset;
		1755
		1756	addr = (void *)(((intptr_t)addr) + offset);
		1757	eio_page_align (&addr, &len);
		1758	#if _POSIX_MEMLOCK_RANGE
		1759	RETVAL = munlock (addr, len);
		1760	#else
		1761	RETVAL = ((errno = ENOSYS), -1);
		1762	#endif
		1763	}
		1764	OUTPUT:
		1765	RETVAL
		1766
		1767	int
		1768	munlockall ()
		1769	CODE:
		1770	#if _POSIX_MEMLOCK
		1771	munlockall ();
		1772	#else
		1773	RETVAL = -1;
		1774	errno = ENOSYS;
		1775	#endif
		1776	OUTPUT:
		1777	RETVAL
1147		1778
1148	void _on_next_submit (SV *cb)	1779	void _on_next_submit (SV *cb)
1149	CODE:	1780	CODE:
1150	SvREFCNT_dec (on_next_submit);	1781	SvREFCNT_dec (on_next_submit);
1151	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1782	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1152		1783
1153	PROTOTYPES: DISABLE	1784	PROTOTYPES: DISABLE
1154		1785
		1786	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1787
		1788	BOOT:
		1789	{
		1790	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1791	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1792	}
		1793
		1794	void
		1795	DESTROY (SV *self)
		1796	CODE:
		1797	{
		1798	aio_wd wd = SvAIO_WD (self);
		1799	#if HAVE_AT
		1800	{
		1801	SV *callback = &PL_sv_undef;
		1802	dREQ; /* clobbers next_pri :/ */
		1803	next_pri = req->pri; /* restore next_pri */
		1804	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1805	req->type = EIO_WD_CLOSE;
		1806	req->wd = wd;
		1807	REQ_SEND;
		1808	}
		1809	#else
		1810	eio_wd_close_sync (wd);
		1811	#endif
		1812	}
		1813
1155	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1814	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1156		1815
1157	void	1816	void
1158	cancel (aio_req_ornot req)	1817	cancel (aio_req_ornot req)
1159	CODE:	1818	CODE:

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