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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.153 by root, Wed Jul 15 01:36:04 2009 UTC vs.
Revision 1.205 by root, Sat Oct 1 10:53:47 2011 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
20	/* perl namespace pollution */	24	/* perl namespace pollution */
21	#undef VERSION	25	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		26
72	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	29	#undef readdir
75	#undef opendir	30	#undef opendir
76	#undef closedir	31	#undef closedir
		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
77		76
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
79		78
80	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
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 int respipe_osf [2];
166	static s_epipe respipe;	341	static s_epipe respipe;
167		342
168	static void req_destroy (aio_req req);	343	static void req_destroy (aio_req req);
169	static void req_cancel (aio_req req);	344	static void req_cancel (aio_req req);
170		345
171	static void want_poll (void)	346	static void
		347	want_poll (void)
172	{	348	{
173	/* write a dummy byte to the pipe so fh becomes ready */	349	/* write a dummy byte to the pipe so fh becomes ready */
174	s_epipe_signal (&respipe);	350	s_epipe_signal (&respipe);
175	}	351	}
176		352
177	static void done_poll (void)	353	static void
		354	done_poll (void)
178	{	355	{
179	/* read any signals sent by the worker threads */	356	/* read any signals sent by the worker threads */
180	s_epipe_drain (&respipe);	357	s_epipe_drain (&respipe);
181	}	358	}
182		359
183	/* must be called at most once */	360	/* must be called at most once */
184	static SV *req_sv (aio_req req, const char *klass)	361	static SV *
		362	req_sv (aio_req req, HV *stash)
185	{	363	{
186	if (!req->self)	364	if (!req->self)
187	{	365	{
188	req->self = (SV *)newHV ();	366	req->self = (SV *)newHV ();
189	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	367	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
190	}	368	}
191		369
192	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	370	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
193	}	371	}
194		372
195	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)
196	{	381	{
197	MAGIC *mg;	382	MAGIC *mg;
198		383
199	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	384	if (!SvROK (sv)
		385	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		386	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		387	&& SvSTASH (SvRV (sv)) != aio_req_stash
		388	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class " AIO_REQ_KLASS " expected");	389	croak ("object of class IO::AIO::REQ expected");
201		390
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	391	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		392
204	return mg ? (aio_req)mg->mg_ptr : 0;	393	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	394	}
206		395
		396	static aio_wd
		397	SvAIO_WD (SV *sv)
		398	{
		399	if (!SvROK (sv)
		400	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		401	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		402	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		403
		404	return (aio_wd)(long)SvIVX (SvRV (sv));
		405	}
		406
		407	static void
207	static void aio_grp_feed (aio_req grp)	408	aio_grp_feed (aio_req grp)
208	{	409	{
209	if (grp->sv2 && SvOK (grp->sv2))	410	if (grp->sv2 && SvOK (grp->sv2))
210	{	411	{
211	dSP;	412	dSP;
212		413
213	ENTER;	414	ENTER;
214	SAVETMPS;	415	SAVETMPS;
215	PUSHMARK (SP);	416	PUSHMARK (SP);
216	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	417	XPUSHs (req_sv (grp, aio_grp_stash));
217	PUTBACK;	418	PUTBACK;
218	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	419	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
219	SPAGAIN;	420	SPAGAIN;
220	FREETMPS;	421	FREETMPS;
221	LEAVE;	422	LEAVE;
222	}	423	}
223	}	424	}
224		425
		426	static void
225	static void req_submit (eio_req *req)	427	req_submit (eio_req *req)
226	{	428	{
227	eio_submit (req);	429	eio_submit (req);
228		430
229	if (expect_false (on_next_submit))	431	if (expect_false (on_next_submit))
230	{	432	{
…		…
237	PUTBACK;	439	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	440	call_sv (cb, G_DISCARD | G_EVAL);
239	}	441	}
240	}	442	}
241		443
		444	static int
242	static int req_invoke (eio_req *req)	445	req_invoke (eio_req *req)
243	{	446	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	447	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	448	SvREADONLY_off (req->sv2);
248		449
249	if (!EIO_CANCELLED (req) && req->callback)	450	if (!EIO_CANCELLED (req) && req->callback)
250	{	451	{
		452	dSP;
		453	static SV *sv_result_cache; /* caches the result integer SV */
		454	SV *sv_result;
		455
251	ENTER;	456	ENTER;
252	SAVETMPS;	457	SAVETMPS;
253	PUSHMARK (SP);	458	PUSHMARK (SP);
254	EXTEND (SP, 1);	459	EXTEND (SP, 1);
255		460
		461	/* do not recreate the result IV from scratch each time */
		462	if (expect_true (sv_result_cache))
		463	{
		464	sv_result = sv_result_cache; sv_result_cache = 0;
		465	SvIV_set (sv_result, req->result);
		466	SvIOK_only (sv_result);
		467	}
		468	else
		469	{
		470	sv_result = newSViv (req->result);
		471	SvREADONLY_on (sv_result);
		472	}
		473
256	switch (req->type)	474	switch (req->type)
257	{	475	{
		476	case EIO_WD_OPEN:
		477	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		478	break;
		479
258	case EIO_READDIR:	480	case EIO_READDIR:
259	{	481	{
260	SV *rv = &PL_sv_undef;	482	SV *rv = &PL_sv_undef;
261		483
262	if (req->result >= 0)	484	if (req->result >= 0)
…		…
327	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	549	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
328	char sym [64];	550	char sym [64];
329	int symlen;	551	int symlen;
330		552
331	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	553	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
332	gv_init (gv, stash, sym, symlen, 0);	554	gv_init (gv, aio_stash, sym, symlen, 0);
333		555
334	symlen = snprintf (	556	symlen = snprintf (
335	sym,	557	sym,
336	sizeof (sym),	558	sizeof (sym),
337	"%s&=%d",	559	"%s&=%d",
…		…
345		567
346	PUSHs (fh);	568	PUSHs (fh);
347	}	569	}
348	break;	570	break;
349		571
		572	case EIO_STATVFS:
		573	case EIO_FSTATVFS:
		574	{
		575	SV *rv = &PL_sv_undef;
		576
		577	#ifndef _WIN32
		578	if (req->result >= 0)
		579	{
		580	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		581	HV *hv = newHV ();
		582
		583	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		584
		585	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		586	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		587	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		588	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		589	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		590	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		591	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		592	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		593	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		594	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		595	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		596	}
		597	#endif
		598
		599	PUSHs (rv);
		600	}
		601
		602	break;
		603
350	case EIO_GROUP:	604	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	605	req->int1 = 2; /* mark group as finished */
352		606
353	if (req->sv1)	607	if (req->sv1)
354	{	608	{
…		…
364	case EIO_NOP:	618	case EIO_NOP:
365	case EIO_BUSY:	619	case EIO_BUSY:
366	break;	620	break;
367		621
368	case EIO_READLINK:	622	case EIO_READLINK:
		623	case EIO_REALPATH:
369	if (req->result > 0)	624	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	625	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	626	break;
372		627
373	case EIO_STAT:	628	case EIO_STAT:
374	case EIO_LSTAT:	629	case EIO_LSTAT:
375	case EIO_FSTAT:	630	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	631	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		632
377	PL_laststatval = req->result;	633	if (!(PL_laststatval = req->result))
		634	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	635	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	636
		637	PUSHs (sv_result);
380	break;	638	break;
381		639
382	case EIO_READ:	640	case EIO_READ:
383	{	641	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	642	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	643	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	644	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	645	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	646	PUSHs (sv_result);
389	}	647	}
390	break;	648	break;
391		649
392	case EIO_DUP2:	650	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	651	if (req->result > 0)
394	req->result = 0;	652	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	653	/* FALLTHROUGH */
396		654
397	default:	655	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	656	PUSHs (sv_result);
399	break;	657	break;
400	}	658	}
401		659
402	errno = req->errorno;	660	errno = req->errorno;
403		661
404	PUTBACK;	662	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	663	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	664	SPAGAIN;
407		665
		666	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		667	SvREFCNT_dec (sv_result);
		668	else
		669	sv_result_cache = sv_result;
		670
408	FREETMPS;	671	FREETMPS;
409	LEAVE;	672	LEAVE;
410		673
411	PUTBACK;	674	PUTBACK;
412	}	675	}
413		676
414	return !!SvTRUE (ERRSV);	677	return !!SvTRUE (ERRSV);
415	}	678	}
416		679
		680	static void
417	static void req_destroy (aio_req req)	681	req_destroy (aio_req req)
418	{	682	{
419	if (req->self)	683	if (req->self)
420	{	684	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	685	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	686	SvREFCNT_dec (req->self);
423	}	687	}
424		688
425	SvREFCNT_dec (req->sv1);	689	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	690	SvREFCNT_dec (req->sv2);
		691	SvREFCNT_dec (req->sv3);
		692	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	693	SvREFCNT_dec (req->callback);
428		694
429	Safefree (req);	695	free (req);
430	}	696	}
431		697
		698	static void
432	static void req_cancel_subs (aio_req grp)	699	req_cancel_subs (aio_req grp)
433	{	700	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	701	if (grp->type != EIO_GROUP)
437	return;	702	return;
438		703
439	SvREFCNT_dec (grp->sv2);	704	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	705	grp->sv2 = 0;
441		706
442	eio_grp_cancel (grp);	707	eio_grp_cancel (grp);
443	}	708	}
444		709
		710	static void ecb_cold
		711	create_respipe (void)
		712	{
		713	if (s_epipe_renew (&respipe))
		714	croak ("IO::AIO: unable to initialize result pipe");
		715	}
		716
445	static void	717	static void
446	create_respipe (void)	718	poll_wait (void)
447	{
448	if (s_epipe_renew (&respipe))
449	croak ("unable to initialize result pipe");
450
451	respipe_osf [0] = S_TO_SOCKET (respipe.fd [0]);
452	respipe_osf [1] = S_TO_SOCKET (respipe.fd [1]);
453	}
454
455	static void poll_wait (void)
456	{	719	{
457	while (eio_nreqs ())	720	while (eio_nreqs ())
458	{	721	{
459	int size;	722	int size;
460		723
…		…
469		732
470	s_epipe_wait (&respipe);	733	s_epipe_wait (&respipe);
471	}	734	}
472	}	735	}
473		736
474	static int poll_cb (void)	737	static int
		738	poll_cb (void)
475	{	739	{
476	for (;;)	740	for (;;)
477	{	741	{
478	int res = eio_poll ();	742	int res = eio_poll ();
479		743
…		…
485		749
486	poll_wait ();	750	poll_wait ();
487	}	751	}
488	}	752	}
489		753
490	static void atfork_child (void)	754	static void ecb_cold
		755	reinit (void)
491	{	756	{
492	create_respipe ();	757	create_respipe ();
		758
		759	if (eio_init (want_poll, done_poll) < 0)
		760	croak ("IO::AIO: unable to initialise eio library");
493	}	761	}
		762
		763	/*****************************************************************************/
		764
		765	#if !_POSIX_MAPPED_FILES
		766	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		767	# define munmap(addr,length) (errno = ENOSYS, -1)
		768	#endif
		769
		770	#if !_POSIX_MEMORY_PROTECTION
		771	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		772	# define PROT_NONE 0
		773	# define PROT_WRITE 0
		774	# define MAP_PRIVATE 0
		775	# define MAP_SHARED 0
		776	# define MAP_FIXED 0
		777	#endif
		778
		779	#define MMAP_MAGIC PERL_MAGIC_ext
		780
		781	static int ecb_cold
		782	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		783	{
		784	int old_errno = errno;
		785	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		786	errno = old_errno;
		787
		788	mg->mg_obj = 0; /* just in case */
		789
		790	SvREADONLY_off (sv);
		791
		792	if (SvPVX (sv) != mg->mg_ptr)
		793	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		794
		795	SvCUR_set (sv, 0);
		796	SvPVX (sv) = 0;
		797	SvOK_off (sv);
		798
		799	return 0;
		800	}
		801
		802	static MGVTBL mmap_vtbl = {
		803	0, 0, 0, 0, mmap_free
		804	};
		805
		806	/*****************************************************************************/
494		807
495	static SV *	808	static SV *
496	get_cb (SV *cb_sv)	809	get_cb (SV *cb_sv)
497	{	810	{
498	SvGETMAGIC (cb_sv);	811	SvGETMAGIC (cb_sv);
499	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	812	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
500	}	813	}
501		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
502	#define dREQ \	835	#define dREQ \
503	SV *cb_cv; \	836	aio_req req = dreq (callback); \
504	aio_req req; \
505	int req_pri = next_pri; \
506	next_pri = EIO_PRI_DEFAULT; \
507	\
508	cb_cv = get_cb (callback); \
509	\
510	Newz (0, req, 1, eio_req); \
511	if (!req) \
512	croak ("out of memory during eio_req allocation"); \
513	\
514	req->callback = SvREFCNT_inc (cb_cv); \
515	req->pri = req_pri
516		837
517	#define REQ_SEND \	838	#define REQ_SEND \
518	PUTBACK; \	839	PUTBACK; \
519	req_submit (req); \	840	req_submit (req); \
520	SPAGAIN; \	841	SPAGAIN; \
521	\	842	\
522	if (GIMME_V != G_VOID) \	843	if (GIMME_V != G_VOID) \
523	XPUSHs (req_sv (req, AIO_REQ_KLASS));	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 = 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;
524		911
525	MODULE = IO::AIO PACKAGE = IO::AIO	912	MODULE = IO::AIO PACKAGE = IO::AIO
526		913
527	PROTOTYPES: ENABLE	914	PROTOTYPES: ENABLE
528		915
…		…
530	{	917	{
531	static const struct {	918	static const struct {
532	const char *name;	919	const char *name;
533	IV iv;	920	IV iv;
534	} *civ, const_iv[] = {	921	} *civ, const_iv[] = {
535	# define const_iv(name, value) { # name, (IV) value },	922	# define const_niv(name, value) { # name, (IV) value },
		923	# define const_iv(name) { # name, (IV) name },
536	# define const_eio(name) { # name, (IV) EIO_ ## name },	924	# define const_eio(name) { # name, (IV) EIO_ ## name },
537	const_iv (EXDEV , EXDEV)	925	const_iv (EXDEV)
538	const_iv (ENOSYS , ENOSYS)	926	const_iv (ENOSYS)
539	const_iv (O_RDONLY, O_RDONLY)	927	const_iv (O_RDONLY)
540	const_iv (O_WRONLY, O_WRONLY)	928	const_iv (O_WRONLY)
		929	const_iv (O_RDWR)
541	const_iv (O_CREAT , O_CREAT)	930	const_iv (O_CREAT)
542	const_iv (O_TRUNC , O_TRUNC)	931	const_iv (O_TRUNC)
543	#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
544	const_iv (S_IFIFO , S_IFIFO)	951	const_iv (S_IFIFO)
545	#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
546	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	961	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
547	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	962	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
548	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	963	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
549	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	964	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
550	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	965	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
551	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	966	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		967
		968	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		969	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		970	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		971	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		972	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		973
		974	const_iv (ST_RDONLY)
		975	const_iv (ST_NOSUID)
		976	const_iv (ST_NODEV)
		977	const_iv (ST_NOEXEC)
		978	const_iv (ST_SYNCHRONOUS)
		979	const_iv (ST_MANDLOCK)
		980	const_iv (ST_WRITE)
		981	const_iv (ST_APPEND)
		982	const_iv (ST_IMMUTABLE)
		983	const_iv (ST_NOATIME)
		984	const_iv (ST_NODIRATIME)
		985	const_iv (ST_RELATIME)
		986
		987	const_iv (PROT_NONE)
		988	const_iv (PROT_EXEC)
		989	const_iv (PROT_READ)
		990	const_iv (PROT_WRITE)
		991
		992	/*const_iv (MAP_FIXED)*/
		993	const_iv (MAP_PRIVATE)
		994	const_iv (MAP_SHARED)
		995	const_iv (MAP_ANONYMOUS)
		996
		997	/* linuxish */
		998	const_iv (MAP_HUGETLB)
		999	const_iv (MAP_LOCKED)
		1000	const_iv (MAP_NORESERVE)
		1001	const_iv (MAP_POPULATE)
		1002	const_iv (MAP_NONBLOCK)
		1003
		1004	const_eio (MCL_FUTURE)
		1005	const_eio (MCL_CURRENT)
		1006
		1007	const_eio (MS_ASYNC)
		1008	const_eio (MS_INVALIDATE)
		1009	const_eio (MS_SYNC)
		1010
		1011	const_eio (MT_MODIFY)
552		1012
553	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1013	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
554	const_eio (SYNC_FILE_RANGE_WRITE)	1014	const_eio (SYNC_FILE_RANGE_WRITE)
555	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1015	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1016
		1017	const_eio (FALLOC_FL_KEEP_SIZE)
556		1018
557	const_eio (READDIR_DENTS)	1019	const_eio (READDIR_DENTS)
558	const_eio (READDIR_DIRS_FIRST)	1020	const_eio (READDIR_DIRS_FIRST)
559	const_eio (READDIR_STAT_ORDER)	1021	const_eio (READDIR_STAT_ORDER)
560	const_eio (READDIR_FOUND_UNKNOWN)	1022	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	const_eio (DT_LNK)	1030	const_eio (DT_LNK)
569	const_eio (DT_SOCK)	1031	const_eio (DT_SOCK)
570	const_eio (DT_WHT)	1032	const_eio (DT_WHT)
571	};	1033	};
572		1034
573	stash = gv_stashpv ("IO::AIO", 1);	1035	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1036	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1037	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1038	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
574		1039
575	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--)
576	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1041	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
577		1042
578	create_respipe ();	1043	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
579		1044
580	if (eio_init (want_poll, done_poll) < 0)	1045	reinit ();
581	croak ("IO::AIO: unable to initialise eio library");
582
583	/* atfork child called in fifo order, so before eio's handler */
584	X_THREAD_ATFORK (0, 0, atfork_child);
585	}	1046	}
586		1047
587	void	1048	void
		1049	reinit ()
		1050	PROTOTYPE:
		1051
		1052	void
588	max_poll_reqs (int nreqs)	1053	max_poll_reqs (unsigned int nreqs)
589	PROTOTYPE: $	1054	PROTOTYPE: $
590	CODE:	1055	CODE:
591	eio_set_max_poll_reqs (nreqs);	1056	eio_set_max_poll_reqs (nreqs);
592		1057
593	void	1058	void
…		…
595	PROTOTYPE: $	1060	PROTOTYPE: $
596	CODE:	1061	CODE:
597	eio_set_max_poll_time (nseconds);	1062	eio_set_max_poll_time (nseconds);
598		1063
599	void	1064	void
600	min_parallel (int nthreads)	1065	min_parallel (unsigned int nthreads)
601	PROTOTYPE: $	1066	PROTOTYPE: $
602	CODE:	1067	CODE:
603	eio_set_min_parallel (nthreads);	1068	eio_set_min_parallel (nthreads);
604		1069
605	void	1070	void
606	max_parallel (int nthreads)	1071	max_parallel (unsigned int nthreads)
607	PROTOTYPE: $	1072	PROTOTYPE: $
608	CODE:	1073	CODE:
609	eio_set_max_parallel (nthreads);	1074	eio_set_max_parallel (nthreads);
610		1075
611	void	1076	void
612	max_idle (int nthreads)	1077	max_idle (unsigned int nthreads)
613	PROTOTYPE: $	1078	PROTOTYPE: $
614	CODE:	1079	CODE:
615	eio_set_max_idle (nthreads);	1080	eio_set_max_idle (nthreads);
616		1081
617	void	1082	void
		1083	idle_timeout (unsigned int seconds)
		1084	PROTOTYPE: $
		1085	CODE:
		1086	eio_set_idle_timeout (seconds);
		1087
		1088	void
618	max_outstanding (int maxreqs)	1089	max_outstanding (unsigned int maxreqs)
619	PROTOTYPE: $	1090	PROTOTYPE: $
620	CODE:	1091	CODE:
621	max_outstanding = maxreqs;	1092	max_outstanding = maxreqs;
622		1093
623	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
624	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)
625	PROTOTYPE: $$$;$
626	PPCODE:	1108	PPCODE:
627	{	1109	{
628	dREQ;	1110	dREQ;
629		1111
630	req->type = EIO_OPEN;	1112	req->type = EIO_OPEN;
631	req->sv1 = newSVsv (pathname);	1113	req_set_path1 (req, pathname);
632	req->ptr1 = SvPVbyte_nolen (req->sv1);
633	req->int1 = flags;	1114	req->int1 = flags;
634	req->int2 = mode;	1115	req->int2 = mode;
635		1116
636	REQ_SEND;	1117	REQ_SEND;
637	}	1118	}
638		1119
639	void	1120	void
640	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1121	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
641	PROTOTYPE: $;$
642	ALIAS:	1122	ALIAS:
643	aio_fsync = EIO_FSYNC	1123	aio_fsync = EIO_FSYNC
644	aio_fdatasync = EIO_FDATASYNC	1124	aio_fdatasync = EIO_FDATASYNC
		1125	aio_syncfs = EIO_SYNCFS
645	PPCODE:	1126	PPCODE:
646	{	1127	{
647	int fd = s_fileno_croak (fh, 0);	1128	int fd = s_fileno_croak (fh, 0);
648	dREQ;	1129	dREQ;
649		1130
…		…
654	REQ_SEND (req);	1135	REQ_SEND (req);
655	}	1136	}
656		1137
657	void	1138	void
658	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1139	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$$$;$
660	PPCODE:	1140	PPCODE:
661	{	1141	{
662	int fd = s_fileno_croak (fh, 0);	1142	int fd = s_fileno_croak (fh, 0);
663	dREQ;	1143	dREQ;
664		1144
…		…
671		1151
672	REQ_SEND (req);	1152	REQ_SEND (req);
673	}	1153	}
674		1154
675	void	1155	void
676	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)
677	PROTOTYPE: $;$
678	PPCODE:	1157	PPCODE:
679	{	1158	{
680	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
681	int fd = s_fileno_croak (fh, 0);	1159	int fd = s_fileno_croak (fh, 0);
682	dREQ;	1160	dREQ;
683		1161
684	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))
685	{	1181	{
686	int pipefd [2];	1182	int pipefd [2];
687		1183
		1184	if (
		1185	#ifdef _WIN32
		1186	_pipe (pipefd, 1, _O_BINARY) < 0
		1187	#else
688	if (pipe (pipefd) < 0	1188	pipe (pipefd) < 0
689	|| close (pipefd [1]) < 0
690	|| 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	)
691	abort (); /*D*/	1193	abort (); /*D*/
692		1194
693	close_pipe = pipefd [0];	1195	close_fd = pipefd [0];
694	}	1196	}
695		1197
696	req->type = EIO_DUP2;	1198	req->type = EIO_DUP2;
697	req->int1 = close_pipe;	1199	req->int1 = close_fd;
698	req->sv2 = newSVsv (fh);	1200	req->sv2 = newSVsv (fh);
699	req->int2 = fd;	1201	req->int2 = fd;
700		1202
701	REQ_SEND (req);	1203	REQ_SEND (req);
702	}	1204	}
…		…
704	void	1206	void
705	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)
706	ALIAS:	1208	ALIAS:
707	aio_read = EIO_READ	1209	aio_read = EIO_READ
708	aio_write = EIO_WRITE	1210	aio_write = EIO_WRITE
709	PROTOTYPE: $$$$$;$
710	PPCODE:	1211	PPCODE:
711	{	1212	{
712	STRLEN svlen;	1213	STRLEN svlen;
713	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1214	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
714	char *svptr = SvPVbyte (data, svlen);	1215	char *svptr = SvPVbyte (data, svlen);
…		…
754	REQ_SEND;	1255	REQ_SEND;
755	}	1256	}
756	}	1257	}
757		1258
758	void	1259	void
759	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1260	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
760	PROTOTYPE: $$;$	1261	ALIAS:
		1262	aio_readlink = EIO_READLINK
		1263	aio_realpath = EIO_REALPATH
761	PPCODE:	1264	PPCODE:
762	{	1265	{
763	SV *data;
764	dREQ;	1266	dREQ;
765		1267
766	req->type = EIO_READLINK;	1268	req->type = ix;
767	req->sv1 = newSVsv (path);	1269	req_set_path1 (req, pathname);
768	req->ptr1 = SvPVbyte_nolen (req->sv1);
769		1270
770	REQ_SEND;	1271	REQ_SEND;
771	}	1272	}
772		1273
773	void	1274	void
774	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)
775	PROTOTYPE: $$$$;$
776	PPCODE:	1276	PPCODE:
777	{	1277	{
778	int ifd = s_fileno_croak (in_fh , 0);	1278	int ifd = s_fileno_croak (in_fh , 0);
779	int ofd = s_fileno_croak (out_fh, 1);	1279	int ofd = s_fileno_croak (out_fh, 1);
780	dREQ;	1280	dREQ;
…		…
790	REQ_SEND;	1290	REQ_SEND;
791	}	1291	}
792		1292
793	void	1293	void
794	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1294	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
795	PROTOTYPE: $$$;$
796	PPCODE:	1295	PPCODE:
797	{	1296	{
798	int fd = s_fileno_croak (fh, 0);	1297	int fd = s_fileno_croak (fh, 0);
799	dREQ;	1298	dREQ;
800		1299
…		…
808	}	1307	}
809		1308
810	void	1309	void
811	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1310	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
812	ALIAS:	1311	ALIAS:
813	aio_stat = EIO_STAT	1312	aio_stat = EIO_STAT
814	aio_lstat = EIO_LSTAT	1313	aio_lstat = EIO_LSTAT
		1314	aio_statvfs = EIO_STATVFS
815	PPCODE:	1315	PPCODE:
816	{	1316	{
817	dREQ;	1317	dREQ;
818		1318
819	req->sv1 = newSVsv (fh_or_path);	1319	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
820
821	if (SvPOK (req->sv1))
822	{
823	req->type = ix;
824	req->ptr1 = SvPVbyte_nolen (req->sv1);
825	}
826	else
827	{
828	req->type = EIO_FSTAT;
829	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
830	}
831		1320
832	REQ_SEND;	1321	REQ_SEND;
833	}	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
834		1339
835	void	1340	void
836	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)
837	PPCODE:	1342	PPCODE:
838	{	1343	{
839	dREQ;	1344	dREQ;
840		1345
841	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1346	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
842	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1347	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
843	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
844
845	if (SvPOK (req->sv1))
846	{
847	req->type = EIO_UTIME;
848	req->ptr1 = SvPVbyte_nolen (req->sv1);
849	}
850	else
851	{
852	req->type = EIO_FUTIME;
853	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
854	}
855		1349
856	REQ_SEND;	1350	REQ_SEND;
857	}	1351	}
858		1352
859	void	1353	void
860	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)
861	PPCODE:	1355	PPCODE:
862	{	1356	{
863	dREQ;	1357	dREQ;
864		1358
865	req->sv1 = newSVsv (fh_or_path);
866	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1359	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
867		1360	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
868	if (SvPOK (req->sv1))
869	{
870	req->type = EIO_TRUNCATE;
871	req->ptr1 = SvPVbyte_nolen (req->sv1);
872	}
873	else
874	{
875	req->type = EIO_FTRUNCATE;
876	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
877	}
878		1361
879	REQ_SEND;	1362	REQ_SEND;
880	}	1363	}
881		1364
882	void	1365	void
883	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)
884	ALIAS:
885	aio_chmod = EIO_CHMOD
886	aio_mkdir = EIO_MKDIR
887	PPCODE:	1367	PPCODE:
888	{	1368	{
889	dREQ;	1369	dREQ;
890		1370
891	req->int2 = mode;	1371	req->int2 = mode;
892	req->sv1 = newSVsv (fh_or_path);	1372	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
893
894	if (SvPOK (req->sv1))
895	{
896	req->type = ix;
897	req->ptr1 = SvPVbyte_nolen (req->sv1);
898	}
899	else
900	{
901	req->type = EIO_FCHMOD;
902	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
903	}
904		1373
905	REQ_SEND;	1374	REQ_SEND;
906	}	1375	}
907		1376
908	void	1377	void
…		…
911	{	1380	{
912	dREQ;	1381	dREQ;
913		1382
914	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1383	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
915	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1384	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
916	req->sv1 = newSVsv (fh_or_path);	1385	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
917
918	if (SvPOK (req->sv1))
919	{
920	req->type = EIO_CHOWN;
921	req->ptr1 = SvPVbyte_nolen (req->sv1);
922	}
923	else
924	{
925	req->type = EIO_FCHOWN;
926	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
927	}
928		1386
929	REQ_SEND;	1387	REQ_SEND;
930	}	1388	}
931		1389
932	void	1390	void
…		…
934	PPCODE:	1392	PPCODE:
935	{	1393	{
936	dREQ;	1394	dREQ;
937		1395
938	req->type = EIO_READDIR;	1396	req->type = EIO_READDIR;
939	req->sv1 = newSVsv (pathname);
940	req->ptr1 = SvPVbyte_nolen (req->sv1);
941	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1397	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
942		1398
943	if (flags & EIO_READDIR_DENTS)	1399	if (flags & EIO_READDIR_DENTS)
944	req->int1 |= EIO_READDIR_CUSTOM2;	1400	req->int1 |= EIO_READDIR_CUSTOM2;
945		1401
		1402	req_set_path1 (req, pathname);
		1403
946	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;
947	}	1418	}
948		1419
949	void	1420	void
950	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1421	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
951	ALIAS:	1422	ALIAS:
…		…
955	PPCODE:	1426	PPCODE:
956	{	1427	{
957	dREQ;	1428	dREQ;
958		1429
959	req->type = ix;	1430	req->type = ix;
960	req->sv1 = newSVsv (pathname);	1431	req_set_path1 (req, pathname);
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962		1432
963	REQ_SEND;	1433	REQ_SEND;
964	}	1434	}
965		1435
966	void	1436	void
…		…
970	aio_symlink = EIO_SYMLINK	1440	aio_symlink = EIO_SYMLINK
971	aio_rename = EIO_RENAME	1441	aio_rename = EIO_RENAME
972	PPCODE:	1442	PPCODE:
973	{	1443	{
974	dREQ;	1444	dREQ;
		1445	eio_wd wd2 = 0;
975		1446
976	req->type = ix;	1447	req->type = ix;
977	req->sv1 = newSVsv (oldpath);	1448	req_set_path1 (req, oldpath);
978	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
979	req->sv2 = newSVsv (newpath);	1450	req->int3 = (long)wd2;
980	req->ptr2 = SvPVbyte_nolen (req->sv2);
981		1451
982	REQ_SEND;	1452	REQ_SEND;
983	}	1453	}
984		1454
985	void	1455	void
…		…
987	PPCODE:	1457	PPCODE:
988	{	1458	{
989	dREQ;	1459	dREQ;
990		1460
991	req->type = EIO_MKNOD;	1461	req->type = EIO_MKNOD;
992	req->sv1 = newSVsv (pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994	req->int2 = (mode_t)mode;	1462	req->int2 = (mode_t)mode;
995	req->offs = dev;	1463	req->offs = dev;
		1464	req_set_path1 (req, pathname);
996		1465
997	REQ_SEND;	1466	REQ_SEND;
998	}	1467	}
999		1468
1000	void	1469	void
		1470	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1471	ALIAS:
		1472	aio_mtouch = EIO_MTOUCH
		1473	aio_msync = EIO_MSYNC
		1474	PPCODE:
		1475	{
		1476	STRLEN svlen;
		1477	char *svptr = SvPVbyte (data, svlen);
		1478	UV len = SvUV (length);
		1479
		1480	if (offset < 0)
		1481	offset += svlen;
		1482
		1483	if (offset < 0 || offset > svlen)
		1484	croak ("offset outside of scalar");
		1485
		1486	if (!SvOK (length) || len + offset > svlen)
		1487	len = svlen - offset;
		1488
		1489	{
		1490	dREQ;
		1491
		1492	req->type = ix;
		1493	req->sv2 = SvREFCNT_inc (data);
		1494	req->ptr2 = (char *)svptr + offset;
		1495	req->size = len;
		1496	req->int1 = flags;
		1497
		1498	REQ_SEND;
		1499	}
		1500	}
		1501
		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
1001	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
1002	PPCODE:	1545	PPCODE:
1003	{	1546	{
1004	dREQ;	1547	dREQ;
1005		1548
…		…
1009	REQ_SEND;	1552	REQ_SEND;
1010	}	1553	}
1011		1554
1012	void	1555	void
1013	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
1014	PROTOTYPE: ;$
1015	PPCODE:	1557	PPCODE:
1016	{	1558	{
1017	dREQ;	1559	dREQ;
1018		1560
1019	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
1020		1562
1021	req_submit (req);	1563	req_submit (req);
1022	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1564	XPUSHs (req_sv (req, aio_grp_stash));
1023	}	1565	}
1024		1566
1025	void	1567	void
1026	aio_nop (SV *callback=&PL_sv_undef)	1568	aio_nop (SV *callback=&PL_sv_undef)
1027	ALIAS:	1569	ALIAS:
…		…
1036	REQ_SEND;	1578	REQ_SEND;
1037	}	1579	}
1038		1580
1039	int	1581	int
1040	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
1041	PROTOTYPE: ;$
1042	CODE:	1583	CODE:
1043	RETVAL = next_pri;	1584	RETVAL = next_pri;
1044	if (items > 0)	1585	if (items > 0)
1045	{	1586	{
1046	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1058	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1059	next_pri = nice;	1600	next_pri = nice;
1060		1601
1061	void	1602	void
1062	flush ()	1603	flush ()
1063	PROTOTYPE:
1064	CODE:	1604	CODE:
1065	while (eio_nreqs ())	1605	while (eio_nreqs ())
1066	{	1606	{
1067	poll_wait ();	1607	poll_wait ();
1068	poll_cb ();	1608	poll_cb ();
1069	}	1609	}
1070		1610
1071	int	1611	int
1072	poll()	1612	poll ()
1073	PROTOTYPE:
1074	CODE:	1613	CODE:
1075	poll_wait ();	1614	poll_wait ();
1076	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
1077	OUTPUT:	1616	OUTPUT:
1078	RETVAL	1617	RETVAL
1079		1618
1080	int	1619	int
1081	poll_fileno()	1620	poll_fileno ()
1082	PROTOTYPE:
1083	CODE:	1621	CODE:
1084	RETVAL = s_epipe_fd (&respipe);	1622	RETVAL = s_epipe_fd (&respipe);
1085	OUTPUT:	1623	OUTPUT:
1086	RETVAL	1624	RETVAL
1087		1625
1088	int	1626	int
1089	poll_cb(...)	1627	poll_cb (...)
1090	PROTOTYPE:	1628	PROTOTYPE:
1091	CODE:	1629	CODE:
1092	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
1093	OUTPUT:	1631	OUTPUT:
1094	RETVAL	1632	RETVAL
1095		1633
1096	void	1634	void
1097	poll_wait()	1635	poll_wait ()
1098	PROTOTYPE:
1099	CODE:	1636	CODE:
1100	poll_wait ();	1637	poll_wait ();
1101		1638
1102	int	1639	int
1103	nreqs()	1640	nreqs ()
1104	PROTOTYPE:
1105	CODE:	1641	CODE:
1106	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
1107	OUTPUT:	1643	OUTPUT:
1108	RETVAL	1644	RETVAL
1109		1645
1110	int	1646	int
1111	nready()	1647	nready ()
1112	PROTOTYPE:
1113	CODE:	1648	CODE:
1114	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1115	OUTPUT:	1650	OUTPUT:
1116	RETVAL	1651	RETVAL
1117		1652
1118	int	1653	int
1119	npending()	1654	npending ()
1120	PROTOTYPE:
1121	CODE:	1655	CODE:
1122	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1123	OUTPUT:	1657	OUTPUT:
1124	RETVAL	1658	RETVAL
1125		1659
1126	int	1660	int
1127	nthreads()	1661	nthreads ()
1128	PROTOTYPE:
1129	CODE:	1662	CODE:
1130	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1131	OUTPUT:	1664	OUTPUT:
1132	RETVAL	1665	RETVAL
1133		1666
1134	int	1667	int
1135	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)
1136	PROTOTYPE: $$$$
1137	CODE:	1669	CODE:
1138	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1139	RETVAL = posix_fadvise (fh, offset, length, advice);	1670	RETVAL = posix_fadvise (fh, offset, length, advice);
1140	#else
1141	RETVAL = errno = ENOSYS;
1142	#endif
1143	OUTPUT:	1671	OUTPUT:
1144	RETVAL	1672	RETVAL
1145		1673
1146	ssize_t	1674	IV
1147	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1148	PROTOTYPE: $$$$
1149	CODE:	1676	CODE:
1150	eio_sendfile_sync (ofh, ifh, offset, count);	1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1678	OUTPUT:
		1679	RETVAL
		1680
		1681	void
		1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1683	PPCODE:
		1684	sv_unmagic (scalar, MMAP_MAGIC);
		1685	{
		1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1688	if (addr == (void *)-1)
		1689	XSRETURN_NO;
		1690
		1691	sv_force_normal (scalar);
		1692
		1693	/* we store the length in mg_obj, as namlen is I32 :/ */
		1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1695	->mg_obj = (SV *)length;
		1696
		1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
		1699	if (!(prot & PROT_WRITE))
		1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
		1704
		1705	SvPVX (scalar) = (char *)addr;
		1706	SvCUR_set (scalar, length);
		1707	SvLEN_set (scalar, 0);
		1708	SvPOK_only (scalar);
		1709
		1710	XSRETURN_YES;
		1711	}
		1712
		1713	void
		1714	munmap (SV *scalar)
		1715	CODE:
		1716	sv_unmagic (scalar, MMAP_MAGIC);
		1717
		1718	int
		1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1720	ALIAS:
		1721	mprotect = 1
		1722	CODE:
		1723	{
		1724	STRLEN svlen;
		1725	void *addr = SvPVbyte (scalar, svlen);
		1726	size_t len = SvUV (length);
		1727
		1728	if (offset < 0)
		1729	offset += svlen;
		1730
		1731	if (offset < 0 || offset > svlen)
		1732	croak ("offset outside of scalar");
		1733
		1734	if (!SvOK (length) || len + offset > svlen)
		1735	len = svlen - offset;
		1736
		1737	addr = (void *)(((intptr_t)addr) + offset);
		1738	eio_page_align (&addr, &len);
		1739
		1740	switch (ix)
		1741	{
		1742	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1743	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1744	}
		1745	}
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	int
		1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1751	CODE:
		1752	{
		1753	STRLEN svlen;
		1754	void *addr = SvPVbyte (scalar, svlen);
		1755	size_t len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	addr = (void *)(((intptr_t)addr) + offset);
		1767	eio_page_align (&addr, &len);
		1768	#if _POSIX_MEMLOCK_RANGE
		1769	RETVAL = munlock (addr, len);
		1770	#else
		1771	RETVAL = ((errno = ENOSYS), -1);
		1772	#endif
		1773	}
		1774	OUTPUT:
		1775	RETVAL
		1776
		1777	int
		1778	munlockall ()
		1779	CODE:
		1780	#if _POSIX_MEMLOCK
		1781	munlockall ();
		1782	#else
		1783	RETVAL = -1;
		1784	errno = ENOSYS;
		1785	#endif
		1786	OUTPUT:
		1787	RETVAL
1151		1788
1152	void _on_next_submit (SV *cb)	1789	void _on_next_submit (SV *cb)
1153	CODE:	1790	CODE:
1154	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1155	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1156		1793
1157	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1158		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
1159	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1160		1825
1161	void	1826	void
1162	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1163	CODE:	1828	CODE:

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