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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 1.208 by root, Sat Jan 7 18:42:43 2012 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
77		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#define EIO_STRUCT_STAT struct _stati64
		68	#define EIO_STRUCT_STATI64
		69
		70	#else
		71
		72	#include <sys/time.h>
		73	#include <sys/select.h>
		74	#include <unistd.h>
		75	#include <utime.h>
		76	#include <signal.h>
		77
78	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
		79
		80	#endif
79		81
80	/* use NV for 32 bit perls as it allows larger offsets */	82	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8	83	#if IVSIZE >= 8
82	# define VAL64 IV	84	# define VAL64 IV
83	# define SvVAL64 SvIV	85	# define SvVAL64 SvIV
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	101	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	102	#define expect_true(expr) expect ((expr) != 0, 1)
101		103
102	/*****************************************************************************/	104	/*****************************************************************************/
103		105
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	106	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	107	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	108	typedef int aio_wfd; /* write file descriptor */
108		109
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	110	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		111
112	#define EIO_REQ_MEMBERS \	112	#define EIO_REQ_MEMBERS \
113	SV *callback; \	113	SV *callback; \
114	SV *sv1, *sv2; \	114	SV *sv1, *sv2; \
		115	SV *sv3, *sv4; \
115	STRLEN stroffset; \	116	STRLEN stroffset; \
116	SV *self;	117	SV *self;
117		118
118	#define EIO_NO_WRAPPERS 1	119	#define EIO_NO_WRAPPERS 1
119		120
		121	#include "libeio/config.h"
120	#include "libeio/eio.h"	122	#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		123
147	static int req_invoke (eio_req *req);	124	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	125	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	126	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	127	#define EIO_DESTROY(req) req_destroy (req)
151		128
		129	#include "libeio/eio.c"
		130
		131	/* Linux/others */
		132	#ifndef O_ASYNC
		133	# define O_ASYNC 0
		134	#endif
		135	#ifndef O_DIRECT
		136	# define O_DIRECT 0
		137	#endif
		138	#ifndef O_NOATIME
		139	# define O_NOATIME 0
		140	#endif
		141
		142	/* POSIX */
		143	#ifndef O_CLOEXEC
		144	# define O_CLOEXEC 0
		145	#endif
		146	#ifndef O_NOFOLLOW
		147	# define O_NOFOLLOW 0
		148	#endif
		149	#ifndef O_NOCTTY
		150	# define O_NOCTTY 0
		151	#endif
		152	#ifndef O_NONBLOCK
		153	# define O_NONBLOCK 0
		154	#endif
		155	#ifndef O_EXEC
		156	# define O_EXEC 0
		157	#endif
		158	#ifndef O_SEARCH
		159	# define O_SEARCH 0
		160	#endif
		161	#ifndef O_DIRECTORY
		162	# define O_DIRECTORY 0
		163	#endif
		164	#ifndef O_DSYNC
		165	# define O_DSYNC 0
		166	#endif
		167	#ifndef O_RSYNC
		168	# define O_RSYNC 0
		169	#endif
		170	#ifndef O_SYNC
		171	# define O_SYNC 0
		172	#endif
		173	#ifndef O_TTY_INIT
		174	# define O_TTY_INIT 0
		175	#endif
		176
		177	#ifndef POSIX_FADV_NORMAL
		178	# define POSIX_FADV_NORMAL 0
		179	#endif
		180	#ifndef POSIX_FADV_SEQUENTIAL
		181	# define POSIX_FADV_SEQUENTIAL 0
		182	#endif
		183	#ifndef POSIX_FADV_RANDOM
		184	# define POSIX_FADV_RANDOM 0
		185	#endif
		186	#ifndef POSIX_FADV_NOREUSE
		187	# define POSIX_FADV_NOREUSE 0
		188	#endif
		189	#ifndef POSIX_FADV_WILLNEED
		190	# define POSIX_FADV_WILLNEED 0
		191	#endif
		192	#ifndef POSIX_FADV_DONTNEED
		193	# define POSIX_FADV_DONTNEED 0
		194	#endif
		195
		196	#if !HAVE_POSIX_FADVISE
		197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		198	#endif
		199
		200	#ifndef POSIX_MADV_NORMAL
		201	# define POSIX_MADV_NORMAL 0
		202	#endif
		203	#ifndef POSIX_MADV_SEQUENTIAL
		204	# define POSIX_MADV_SEQUENTIAL 0
		205	#endif
		206	#ifndef POSIX_MADV_RANDOM
		207	# define POSIX_MADV_RANDOM 0
		208	#endif
		209	#ifndef POSIX_MADV_WILLNEED
		210	# define POSIX_MADV_WILLNEED 0
		211	#endif
		212	#ifndef POSIX_MADV_DONTNEED
		213	# define POSIX_MADV_DONTNEED 0
		214	#endif
		215
		216	#if !HAVE_POSIX_MADVISE
		217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		218	#endif
		219
		220	#ifndef PROT_NONE
		221	# define PROT_NONE 0
		222	#endif
		223	#ifndef PROT_READ
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_WRITE
		227	# define PROT_READ 0
		228	#endif
		229	#ifndef PROT_EXEC
		230	# define PROT_EXEC 0
		231	#endif
		232
		233	#ifndef ST_RDONLY
		234	# define ST_RDONLY 0
		235	#endif
		236	#ifndef ST_NOSUID
		237	# define ST_NOSUID 0
		238	#endif
		239	#ifndef ST_NODEV
		240	# define ST_NODEV 0
		241	#endif
		242	#ifndef ST_NOEXEC
		243	# define ST_NOEXEC 0
		244	#endif
		245	#ifndef ST_SYNCHRONOUS
		246	# define ST_SYNCHRONOUS 0
		247	#endif
		248	#ifndef ST_MANDLOCK
		249	# define ST_MANDLOCK 0
		250	#endif
		251	#ifndef ST_WRITE
		252	# define ST_WRITE 0
		253	#endif
		254	#ifndef ST_APPEND
		255	# define ST_APPEND 0
		256	#endif
		257	#ifndef ST_IMMUTABLE
		258	# define ST_IMMUTABLE 0
		259	#endif
		260	#ifndef ST_NOATIME
		261	# define ST_NOATIME 0
		262	#endif
		263	#ifndef ST_NODIRATIME
		264	# define ST_NODIRATIME 0
		265	#endif
		266	#ifndef ST_RELATIME
		267	# define ST_RELATIME 0
		268	#endif
		269
		270	#ifndef S_IFIFO
		271	# define S_IFIFO 0
		272	#endif
		273	#ifndef S_IFCHR
		274	# define S_IFCHR 0
		275	#endif
		276	#ifndef S_IFBLK
		277	# define S_IFBLK 0
		278	#endif
		279	#ifndef S_IFLNK
		280	# define S_IFLNK 0
		281	#endif
		282	#ifndef S_IFREG
		283	# define S_IFREG 0
		284	#endif
		285	#ifndef S_IFDIR
		286	# define S_IFDIR 0
		287	#endif
		288	#ifndef S_IFWHT
		289	# define S_IFWHT 0
		290	#endif
		291	#ifndef S_IFSOCK
		292	# define S_IFSOCK 0
		293	#endif
		294
		295	#ifndef MAP_ANONYMOUS
		296	# ifdef MAP_ANON
		297	# define MAP_ANONYMOUS MAP_ANON
		298	# else
		299	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		300	# endif
		301	#endif
		302	#ifndef MAP_HUGETLB
		303	# define MAP_HUGETLB 0
		304	#endif
		305	#ifndef MAP_LOCKED
		306	# define MAP_LOCKED 0
		307	#endif
		308	#ifndef MAP_NORESERVE
		309	# define MAP_NORESERVE 0
		310	#endif
		311	#ifndef MAP_POPULATE
		312	# define MAP_POPULATE 0
		313	#endif
		314	#ifndef MAP_NONBLOCK
		315	# define MAP_NONBLOCK 0
		316	#endif
		317
		318	#ifndef makedev
		319	# define makedev(maj,min) (((maj) << 8) | (min))
		320	#endif
		321	#ifndef major
		322	# define major(dev) ((dev) >> 8)
		323	#endif
		324	#ifndef minor
		325	# define minor(dev) ((dev) & 0xff)
		326	#endif
		327
		328	#ifndef PAGESIZE
		329	# define PAGESIZE sysconf (_SC_PAGESIZE)
		330	#endif
		331
152	enum {	332	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	334	};
155		335
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	336	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	337	typedef eio_req *aio_req_ornot;
		338	typedef eio_wd aio_wd;
160		339
161	static SV *on_next_submit;	340	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	341	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	342	static int max_outstanding;
164		343
165	static int respipe_osf [2];
166	static s_epipe respipe;	344	static s_epipe respipe;
167		345
168	static void req_destroy (aio_req req);	346	static void req_destroy (aio_req req);
169	static void req_cancel (aio_req req);	347	static void req_cancel (aio_req req);
170		348
171	static void want_poll (void)	349	static void
		350	want_poll (void)
172	{	351	{
173	/* write a dummy byte to the pipe so fh becomes ready */	352	/* write a dummy byte to the pipe so fh becomes ready */
174	s_epipe_signal (&respipe);	353	s_epipe_signal (&respipe);
175	}	354	}
176		355
177	static void done_poll (void)	356	static void
		357	done_poll (void)
178	{	358	{
179	/* read any signals sent by the worker threads */	359	/* read any signals sent by the worker threads */
180	s_epipe_drain (&respipe);	360	s_epipe_drain (&respipe);
181	}	361	}
182		362
183	/* must be called at most once */	363	/* must be called at most once */
184	static SV *req_sv (aio_req req, const char *klass)	364	static SV *
		365	req_sv (aio_req req, HV *stash)
185	{	366	{
186	if (!req->self)	367	if (!req->self)
187	{	368	{
188	req->self = (SV *)newHV ();	369	req->self = (SV *)newHV ();
189	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	370	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
190	}	371	}
191		372
192	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	373	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
193	}	374	}
194		375
195	static aio_req SvAIO_REQ (SV *sv)	376	static SV *
		377	newSVaio_wd (aio_wd wd)
		378	{
		379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		380	}
		381
		382	static aio_req
		383	SvAIO_REQ (SV *sv)
196	{	384	{
197	MAGIC *mg;	385	MAGIC *mg;
198		386
199	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	387	if (!SvROK (sv)
		388	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		389	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		390	&& SvSTASH (SvRV (sv)) != aio_req_stash
		391	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class " AIO_REQ_KLASS " expected");	392	croak ("object of class IO::AIO::REQ expected");
201		393
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	394	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		395
204	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	397	}
206		398
		399	static aio_wd
		400	SvAIO_WD (SV *sv)
		401	{
		402	if (!SvROK (sv)
		403	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		406
		407	return (aio_wd)(long)SvIVX (SvRV (sv));
		408	}
		409
		410	static void
207	static void aio_grp_feed (aio_req grp)	411	aio_grp_feed (aio_req grp)
208	{	412	{
209	if (grp->sv2 && SvOK (grp->sv2))	413	if (grp->sv2 && SvOK (grp->sv2))
210	{	414	{
211	dSP;	415	dSP;
212		416
213	ENTER;	417	ENTER;
214	SAVETMPS;	418	SAVETMPS;
215	PUSHMARK (SP);	419	PUSHMARK (SP);
216	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	420	XPUSHs (req_sv (grp, aio_grp_stash));
217	PUTBACK;	421	PUTBACK;
218	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	422	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
219	SPAGAIN;	423	SPAGAIN;
220	FREETMPS;	424	FREETMPS;
221	LEAVE;	425	LEAVE;
222	}	426	}
223	}	427	}
224		428
		429	static void
225	static void req_submit (eio_req *req)	430	req_submit (eio_req *req)
226	{	431	{
227	eio_submit (req);	432	eio_submit (req);
228		433
229	if (expect_false (on_next_submit))	434	if (expect_false (on_next_submit))
230	{	435	{
…		…
237	PUTBACK;	442	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	443	call_sv (cb, G_DISCARD | G_EVAL);
239	}	444	}
240	}	445	}
241		446
		447	static int
242	static int req_invoke (eio_req *req)	448	req_invoke (eio_req *req)
243	{	449	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	450	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	451	SvREADONLY_off (req->sv2);
248		452
249	if (!EIO_CANCELLED (req) && req->callback)	453	if (!EIO_CANCELLED (req) && req->callback)
250	{	454	{
		455	dSP;
		456	static SV *sv_result_cache; /* caches the result integer SV */
		457	SV *sv_result;
		458
251	ENTER;	459	ENTER;
252	SAVETMPS;	460	SAVETMPS;
253	PUSHMARK (SP);	461	PUSHMARK (SP);
254	EXTEND (SP, 1);	462	EXTEND (SP, 1);
255		463
		464	/* do not recreate the result IV from scratch each time */
		465	if (expect_true (sv_result_cache))
		466	{
		467	sv_result = sv_result_cache; sv_result_cache = 0;
		468	SvIV_set (sv_result, req->result);
		469	SvIOK_only (sv_result);
		470	}
		471	else
		472	{
		473	sv_result = newSViv (req->result);
		474	SvREADONLY_on (sv_result);
		475	}
		476
256	switch (req->type)	477	switch (req->type)
257	{	478	{
		479	case EIO_WD_OPEN:
		480	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		481	break;
		482
258	case EIO_READDIR:	483	case EIO_READDIR:
259	{	484	{
260	SV *rv = &PL_sv_undef;	485	SV *rv = &PL_sv_undef;
261		486
262	if (req->result >= 0)	487	if (req->result >= 0)
…		…
327	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	552	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
328	char sym [64];	553	char sym [64];
329	int symlen;	554	int symlen;
330		555
331	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	556	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
332	gv_init (gv, stash, sym, symlen, 0);	557	gv_init (gv, aio_stash, sym, symlen, 0);
333		558
334	symlen = snprintf (	559	symlen = snprintf (
335	sym,	560	sym,
336	sizeof (sym),	561	sizeof (sym),
337	"%s&=%d",	562	"%s&=%d",
…		…
345		570
346	PUSHs (fh);	571	PUSHs (fh);
347	}	572	}
348	break;	573	break;
349		574
		575	case EIO_STATVFS:
		576	case EIO_FSTATVFS:
		577	{
		578	SV *rv = &PL_sv_undef;
		579
		580	#ifndef _WIN32
		581	if (req->result >= 0)
		582	{
		583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		584	HV *hv = newHV ();
		585
		586	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		587
		588	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		589	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		590	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		591	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		592	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		593	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		594	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		599	}
		600	#endif
		601
		602	PUSHs (rv);
		603	}
		604
		605	break;
		606
350	case EIO_GROUP:	607	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	608	req->int1 = 2; /* mark group as finished */
352		609
353	if (req->sv1)	610	if (req->sv1)
354	{	611	{
…		…
364	case EIO_NOP:	621	case EIO_NOP:
365	case EIO_BUSY:	622	case EIO_BUSY:
366	break;	623	break;
367		624
368	case EIO_READLINK:	625	case EIO_READLINK:
		626	case EIO_REALPATH:
369	if (req->result > 0)	627	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	628	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	629	break;
372		630
373	case EIO_STAT:	631	case EIO_STAT:
374	case EIO_LSTAT:	632	case EIO_LSTAT:
375	case EIO_FSTAT:	633	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	634	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		635
377	PL_laststatval = req->result;	636	if (!(PL_laststatval = req->result))
		637	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	638	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	639
		640	PUSHs (sv_result);
380	break;	641	break;
381		642
382	case EIO_READ:	643	case EIO_READ:
383	{	644	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	645	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	646	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	647	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	648	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	649	PUSHs (sv_result);
389	}	650	}
390	break;	651	break;
391		652
392	case EIO_DUP2:	653	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	654	if (req->result > 0)
394	req->result = 0;	655	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	656	/* FALLTHROUGH */
396		657
397	default:	658	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	659	PUSHs (sv_result);
399	break;	660	break;
400	}	661	}
401		662
402	errno = req->errorno;	663	errno = req->errorno;
403		664
404	PUTBACK;	665	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	666	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	667	SPAGAIN;
407		668
		669	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		670	SvREFCNT_dec (sv_result);
		671	else
		672	sv_result_cache = sv_result;
		673
408	FREETMPS;	674	FREETMPS;
409	LEAVE;	675	LEAVE;
410		676
411	PUTBACK;	677	PUTBACK;
412	}	678	}
413		679
414	return !!SvTRUE (ERRSV);	680	return !!SvTRUE (ERRSV);
415	}	681	}
416		682
		683	static void
417	static void req_destroy (aio_req req)	684	req_destroy (aio_req req)
418	{	685	{
419	if (req->self)	686	if (req->self)
420	{	687	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	688	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	689	SvREFCNT_dec (req->self);
423	}	690	}
424		691
425	SvREFCNT_dec (req->sv1);	692	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	693	SvREFCNT_dec (req->sv2);
		694	SvREFCNT_dec (req->sv3);
		695	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	696	SvREFCNT_dec (req->callback);
428		697
429	Safefree (req);	698	free (req);
430	}	699	}
431		700
		701	static void
432	static void req_cancel_subs (aio_req grp)	702	req_cancel_subs (aio_req grp)
433	{	703	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	704	if (grp->type != EIO_GROUP)
437	return;	705	return;
438		706
439	SvREFCNT_dec (grp->sv2);	707	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	708	grp->sv2 = 0;
441		709
442	eio_grp_cancel (grp);	710	eio_grp_cancel (grp);
443	}	711	}
444		712
		713	static void ecb_cold
		714	create_respipe (void)
		715	{
		716	if (s_epipe_renew (&respipe))
		717	croak ("IO::AIO: unable to initialize result pipe");
		718	}
		719
445	static void	720	static void
446	create_respipe (void)	721	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	{	722	{
457	while (eio_nreqs ())	723	while (eio_nreqs ())
458	{	724	{
459	int size;	725	int size;
460		726
…		…
469		735
470	s_epipe_wait (&respipe);	736	s_epipe_wait (&respipe);
471	}	737	}
472	}	738	}
473		739
474	static int poll_cb (void)	740	static int
		741	poll_cb (void)
475	{	742	{
476	for (;;)	743	for (;;)
477	{	744	{
478	int res = eio_poll ();	745	int res = eio_poll ();
479		746
…		…
485		752
486	poll_wait ();	753	poll_wait ();
487	}	754	}
488	}	755	}
489		756
490	static void atfork_child (void)	757	static void ecb_cold
		758	reinit (void)
491	{	759	{
492	create_respipe ();	760	create_respipe ();
		761
		762	if (eio_init (want_poll, done_poll) < 0)
		763	croak ("IO::AIO: unable to initialise eio library");
493	}	764	}
		765
		766	/*****************************************************************************/
		767
		768	#if !_POSIX_MAPPED_FILES
		769	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		770	# define munmap(addr,length) (errno = ENOSYS, -1)
		771	#endif
		772
		773	#if !_POSIX_MEMORY_PROTECTION
		774	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		775	# define PROT_NONE 0
		776	# define PROT_WRITE 0
		777	# define MAP_PRIVATE 0
		778	# define MAP_SHARED 0
		779	# define MAP_FIXED 0
		780	#endif
		781
		782	#define MMAP_MAGIC PERL_MAGIC_ext
		783
		784	static int ecb_cold
		785	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		786	{
		787	int old_errno = errno;
		788	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		789	errno = old_errno;
		790
		791	mg->mg_obj = 0; /* just in case */
		792
		793	SvREADONLY_off (sv);
		794
		795	if (SvPVX (sv) != mg->mg_ptr)
		796	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		797
		798	SvCUR_set (sv, 0);
		799	SvPVX (sv) = 0;
		800	SvOK_off (sv);
		801
		802	return 0;
		803	}
		804
		805	static MGVTBL mmap_vtbl = {
		806	0, 0, 0, 0, mmap_free
		807	};
		808
		809	/*****************************************************************************/
494		810
495	static SV *	811	static SV *
496	get_cb (SV *cb_sv)	812	get_cb (SV *cb_sv)
497	{	813	{
498	SvGETMAGIC (cb_sv);	814	SvGETMAGIC (cb_sv);
499	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	815	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
500	}	816	}
501		817
		818	static aio_req ecb_noinline
		819	dreq (SV *callback)
		820	{
		821	SV *cb_cv;
		822	aio_req req;
		823	int req_pri = next_pri;
		824	next_pri = EIO_PRI_DEFAULT;
		825
		826	cb_cv = get_cb (callback);
		827
		828	req = calloc (sizeof (*req), 1);
		829	if (!req)
		830	croak ("out of memory during eio_req allocation");
		831
		832	req->callback = SvREFCNT_inc (cb_cv);
		833	req->pri = req_pri;
		834
		835	return req;
		836	}
		837
502	#define dREQ \	838	#define dREQ \
503	SV *cb_cv; \	839	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		840
517	#define REQ_SEND \	841	#define REQ_SEND \
518	PUTBACK; \	842	PUTBACK; \
519	req_submit (req); \	843	req_submit (req); \
520	SPAGAIN; \	844	SPAGAIN; \
521	\	845	\
522	if (GIMME_V != G_VOID) \	846	if (GIMME_V != G_VOID) \
523	XPUSHs (req_sv (req, AIO_REQ_KLASS));	847	XPUSHs (req_sv (req, aio_req_stash));
		848
		849	ecb_inline void
		850	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		851	{
		852	if (expect_false (SvROK (path)))
		853	{
		854	SV *rv = SvRV (path);
		855	SV *wdob;
		856
		857	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		858	{
		859	path = AvARRAY (rv)[1];
		860	wdob = AvARRAY (rv)[0];
		861
		862	if (SvOK (wdob))
		863	{
		864	*wd = SvAIO_WD (wdob);
		865	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		866	}
		867	else
		868	*wd = EIO_INVALID_WD;
		869	}
		870	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		871	{
		872	*wd = (aio_wd)(long)SvIVX (rv);
		873	*wdsv = SvREFCNT_inc_NN (rv);
		874	*ptr = ".";
		875	return; /* path set to "." */
		876	}
		877	else
		878	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		879	}
		880
		881	*pathsv = newSVsv (path);
		882	*ptr = SvPVbyte_nolen (*pathsv);
		883	}
		884
		885	static void ecb_noinline
		886	req_set_path1 (aio_req req, SV *path)
		887	{
		888	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		889	}
		890
		891	static void ecb_noinline
		892	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		893	{
		894	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		895
		896	switch (SvTYPE (rv))
		897	{
		898	case SVt_PVIO:
		899	case SVt_PVLV:
		900	case SVt_PVGV:
		901	req->type = type_fh;
		902	req->sv1 = newSVsv (fh_or_path);
		903	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		904	break;
		905
		906	default:
		907	req->type = type_path;
		908	req_set_path1 (req, fh_or_path);
		909	break;
		910	}
		911	}
		912
		913	XS(boot_IO__AIO) ecb_cold;
524		914
525	MODULE = IO::AIO PACKAGE = IO::AIO	915	MODULE = IO::AIO PACKAGE = IO::AIO
526		916
527	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
528		918
…		…
530	{	920	{
531	static const struct {	921	static const struct {
532	const char *name;	922	const char *name;
533	IV iv;	923	IV iv;
534	} *civ, const_iv[] = {	924	} *civ, const_iv[] = {
535	# define const_iv(name, value) { # name, (IV) value },	925	# define const_niv(name, value) { # name, (IV) value },
		926	# define const_iv(name) { # name, (IV) name },
536	# define const_eio(name) { # name, (IV) EIO_ ## name },	927	# define const_eio(name) { # name, (IV) EIO_ ## name },
537	const_iv (EXDEV , EXDEV)	928	const_iv (EXDEV)
538	const_iv (ENOSYS , ENOSYS)	929	const_iv (ENOSYS)
539	const_iv (O_RDONLY, O_RDONLY)	930	const_iv (O_RDONLY)
540	const_iv (O_WRONLY, O_WRONLY)	931	const_iv (O_WRONLY)
		932	const_iv (O_RDWR)
541	const_iv (O_CREAT , O_CREAT)	933	const_iv (O_CREAT)
542	const_iv (O_TRUNC , O_TRUNC)	934	const_iv (O_TRUNC)
543	#ifndef _WIN32	935	const_iv (O_EXCL)
		936	const_iv (O_APPEND)
		937
		938	const_iv (O_ASYNC)
		939	const_iv (O_DIRECT)
		940	const_iv (O_NOATIME)
		941
		942	const_iv (O_CLOEXEC)
		943	const_iv (O_NOCTTY)
		944	const_iv (O_NOFOLLOW)
		945	const_iv (O_NONBLOCK)
		946	const_iv (O_EXEC)
		947	const_iv (O_SEARCH)
		948	const_iv (O_DIRECTORY)
		949	const_iv (O_DSYNC)
		950	const_iv (O_RSYNC)
		951	const_iv (O_SYNC)
		952	const_iv (O_TTY_INIT)
		953
544	const_iv (S_IFIFO , S_IFIFO)	954	const_iv (S_IFIFO)
545	#endif	955	const_iv (S_IFCHR)
		956	const_iv (S_IFBLK)
		957	const_iv (S_IFLNK)
		958	const_iv (S_IFREG)
		959	const_iv (S_IFDIR)
		960	const_iv (S_IFWHT)
		961	const_iv (S_IFSOCK)
		962	const_iv (S_IFMT)
		963
546	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	964	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
547	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	965	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
548	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	966	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
549	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	967	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
550	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	968	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
551	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	969	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		970
		971	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		972	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		973	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		974	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		975	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		976
		977	const_iv (ST_RDONLY)
		978	const_iv (ST_NOSUID)
		979	const_iv (ST_NODEV)
		980	const_iv (ST_NOEXEC)
		981	const_iv (ST_SYNCHRONOUS)
		982	const_iv (ST_MANDLOCK)
		983	const_iv (ST_WRITE)
		984	const_iv (ST_APPEND)
		985	const_iv (ST_IMMUTABLE)
		986	const_iv (ST_NOATIME)
		987	const_iv (ST_NODIRATIME)
		988	const_iv (ST_RELATIME)
		989
		990	const_iv (PROT_NONE)
		991	const_iv (PROT_EXEC)
		992	const_iv (PROT_READ)
		993	const_iv (PROT_WRITE)
		994
		995	/*const_iv (MAP_FIXED)*/
		996	const_iv (MAP_PRIVATE)
		997	const_iv (MAP_SHARED)
		998	const_iv (MAP_ANONYMOUS)
		999
		1000	/* linuxish */
		1001	const_iv (MAP_HUGETLB)
		1002	const_iv (MAP_LOCKED)
		1003	const_iv (MAP_NORESERVE)
		1004	const_iv (MAP_POPULATE)
		1005	const_iv (MAP_NONBLOCK)
		1006
		1007	const_eio (MCL_FUTURE)
		1008	const_eio (MCL_CURRENT)
		1009
		1010	const_eio (MS_ASYNC)
		1011	const_eio (MS_INVALIDATE)
		1012	const_eio (MS_SYNC)
		1013
		1014	const_eio (MT_MODIFY)
552		1015
553	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1016	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
554	const_eio (SYNC_FILE_RANGE_WRITE)	1017	const_eio (SYNC_FILE_RANGE_WRITE)
555	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1018	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1019
		1020	const_eio (FALLOC_FL_KEEP_SIZE)
556		1021
557	const_eio (READDIR_DENTS)	1022	const_eio (READDIR_DENTS)
558	const_eio (READDIR_DIRS_FIRST)	1023	const_eio (READDIR_DIRS_FIRST)
559	const_eio (READDIR_STAT_ORDER)	1024	const_eio (READDIR_STAT_ORDER)
560	const_eio (READDIR_FOUND_UNKNOWN)	1025	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	const_eio (DT_LNK)	1033	const_eio (DT_LNK)
569	const_eio (DT_SOCK)	1034	const_eio (DT_SOCK)
570	const_eio (DT_WHT)	1035	const_eio (DT_WHT)
571	};	1036	};
572		1037
573	stash = gv_stashpv ("IO::AIO", 1);	1038	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1039	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1040	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1041	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
574		1042
575	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1043	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
576	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1044	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
577		1045
578	create_respipe ();	1046	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
579		1047
580	if (eio_init (want_poll, done_poll) < 0)	1048	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	}	1049	}
586		1050
587	void	1051	void
		1052	reinit ()
		1053	PROTOTYPE:
		1054
		1055	void
588	max_poll_reqs (int nreqs)	1056	max_poll_reqs (unsigned int nreqs)
589	PROTOTYPE: $	1057	PROTOTYPE: $
590	CODE:	1058	CODE:
591	eio_set_max_poll_reqs (nreqs);	1059	eio_set_max_poll_reqs (nreqs);
592		1060
593	void	1061	void
…		…
595	PROTOTYPE: $	1063	PROTOTYPE: $
596	CODE:	1064	CODE:
597	eio_set_max_poll_time (nseconds);	1065	eio_set_max_poll_time (nseconds);
598		1066
599	void	1067	void
600	min_parallel (int nthreads)	1068	min_parallel (unsigned int nthreads)
601	PROTOTYPE: $	1069	PROTOTYPE: $
602	CODE:	1070	CODE:
603	eio_set_min_parallel (nthreads);	1071	eio_set_min_parallel (nthreads);
604		1072
605	void	1073	void
606	max_parallel (int nthreads)	1074	max_parallel (unsigned int nthreads)
607	PROTOTYPE: $	1075	PROTOTYPE: $
608	CODE:	1076	CODE:
609	eio_set_max_parallel (nthreads);	1077	eio_set_max_parallel (nthreads);
610		1078
611	void	1079	void
612	max_idle (int nthreads)	1080	max_idle (unsigned int nthreads)
613	PROTOTYPE: $	1081	PROTOTYPE: $
614	CODE:	1082	CODE:
615	eio_set_max_idle (nthreads);	1083	eio_set_max_idle (nthreads);
616		1084
617	void	1085	void
		1086	idle_timeout (unsigned int seconds)
		1087	PROTOTYPE: $
		1088	CODE:
		1089	eio_set_idle_timeout (seconds);
		1090
		1091	void
618	max_outstanding (int maxreqs)	1092	max_outstanding (unsigned int maxreqs)
619	PROTOTYPE: $	1093	PROTOTYPE: $
620	CODE:	1094	CODE:
621	max_outstanding = maxreqs;	1095	max_outstanding = maxreqs;
622		1096
623	void	1097	void
		1098	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1099	PPCODE:
		1100	{
		1101	dREQ;
		1102
		1103	req->type = EIO_WD_OPEN;
		1104	req_set_path1 (req, pathname);
		1105
		1106	REQ_SEND;
		1107	}
		1108
		1109	void
624	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1110	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
625	PROTOTYPE: $$$;$
626	PPCODE:	1111	PPCODE:
627	{	1112	{
628	dREQ;	1113	dREQ;
629		1114
630	req->type = EIO_OPEN;	1115	req->type = EIO_OPEN;
631	req->sv1 = newSVsv (pathname);	1116	req_set_path1 (req, pathname);
632	req->ptr1 = SvPVbyte_nolen (req->sv1);
633	req->int1 = flags;	1117	req->int1 = flags;
634	req->int2 = mode;	1118	req->int2 = mode;
635		1119
636	REQ_SEND;	1120	REQ_SEND;
637	}	1121	}
638		1122
639	void	1123	void
640	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1124	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
641	PROTOTYPE: $;$
642	ALIAS:	1125	ALIAS:
643	aio_fsync = EIO_FSYNC	1126	aio_fsync = EIO_FSYNC
644	aio_fdatasync = EIO_FDATASYNC	1127	aio_fdatasync = EIO_FDATASYNC
		1128	aio_syncfs = EIO_SYNCFS
645	PPCODE:	1129	PPCODE:
646	{	1130	{
647	int fd = s_fileno_croak (fh, 0);	1131	int fd = s_fileno_croak (fh, 0);
648	dREQ;	1132	dREQ;
649		1133
…		…
654	REQ_SEND (req);	1138	REQ_SEND (req);
655	}	1139	}
656		1140
657	void	1141	void
658	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1142	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$$$;$
660	PPCODE:	1143	PPCODE:
661	{	1144	{
662	int fd = s_fileno_croak (fh, 0);	1145	int fd = s_fileno_croak (fh, 0);
663	dREQ;	1146	dREQ;
664		1147
…		…
671		1154
672	REQ_SEND (req);	1155	REQ_SEND (req);
673	}	1156	}
674		1157
675	void	1158	void
676	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1159	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
677	PROTOTYPE: $;$
678	PPCODE:	1160	PPCODE:
679	{	1161	{
680	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
681	int fd = s_fileno_croak (fh, 0);	1162	int fd = s_fileno_croak (fh, 0);
682	dREQ;	1163	dREQ;
683		1164
684	if (close_pipe < 0)	1165	req->type = EIO_FALLOCATE;
		1166	req->sv1 = newSVsv (fh);
		1167	req->int1 = fd;
		1168	req->int2 = mode;
		1169	req->offs = offset;
		1170	req->size = len;
		1171
		1172	REQ_SEND (req);
		1173	}
		1174
		1175	void
		1176	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1177	PPCODE:
		1178	{
		1179	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1180	int fd = s_fileno_croak (fh, 0);
		1181	dREQ;
		1182
		1183	if (expect_false (close_fd < 0))
685	{	1184	{
686	int pipefd [2];	1185	int pipefd [2];
687		1186
		1187	if (
		1188	#ifdef _WIN32
		1189	_pipe (pipefd, 1, _O_BINARY) < 0
		1190	#else
688	if (pipe (pipefd) < 0	1191	pipe (pipefd) < 0
689	|| close (pipefd [1]) < 0
690	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1192	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1193	#endif
		1194	|| close (pipefd [1]) < 0
		1195	)
691	abort (); /*D*/	1196	abort (); /*D*/
692		1197
693	close_pipe = pipefd [0];	1198	close_fd = pipefd [0];
694	}	1199	}
695		1200
696	req->type = EIO_DUP2;	1201	req->type = EIO_DUP2;
697	req->int1 = close_pipe;	1202	req->int1 = close_fd;
698	req->sv2 = newSVsv (fh);	1203	req->sv2 = newSVsv (fh);
699	req->int2 = fd;	1204	req->int2 = fd;
700		1205
701	REQ_SEND (req);	1206	REQ_SEND (req);
702	}	1207	}
…		…
704	void	1209	void
705	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1210	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
706	ALIAS:	1211	ALIAS:
707	aio_read = EIO_READ	1212	aio_read = EIO_READ
708	aio_write = EIO_WRITE	1213	aio_write = EIO_WRITE
709	PROTOTYPE: $$$$$;$
710	PPCODE:	1214	PPCODE:
711	{	1215	{
712	STRLEN svlen;	1216	STRLEN svlen;
713	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1217	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
714	char *svptr = SvPVbyte (data, svlen);	1218	char *svptr = SvPVbyte (data, svlen);
…		…
754	REQ_SEND;	1258	REQ_SEND;
755	}	1259	}
756	}	1260	}
757		1261
758	void	1262	void
759	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1263	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
760	PROTOTYPE: $$;$	1264	ALIAS:
		1265	aio_readlink = EIO_READLINK
		1266	aio_realpath = EIO_REALPATH
761	PPCODE:	1267	PPCODE:
762	{	1268	{
763	SV *data;
764	dREQ;	1269	dREQ;
765		1270
766	req->type = EIO_READLINK;	1271	req->type = ix;
767	req->sv1 = newSVsv (path);	1272	req_set_path1 (req, pathname);
768	req->ptr1 = SvPVbyte_nolen (req->sv1);
769		1273
770	REQ_SEND;	1274	REQ_SEND;
771	}	1275	}
772		1276
773	void	1277	void
774	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1278	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
775	PROTOTYPE: $$$$;$
776	PPCODE:	1279	PPCODE:
777	{	1280	{
778	int ifd = s_fileno_croak (in_fh , 0);	1281	int ifd = s_fileno_croak (in_fh , 0);
779	int ofd = s_fileno_croak (out_fh, 1);	1282	int ofd = s_fileno_croak (out_fh, 1);
780	dREQ;	1283	dREQ;
…		…
790	REQ_SEND;	1293	REQ_SEND;
791	}	1294	}
792		1295
793	void	1296	void
794	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1297	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
795	PROTOTYPE: $$$;$
796	PPCODE:	1298	PPCODE:
797	{	1299	{
798	int fd = s_fileno_croak (fh, 0);	1300	int fd = s_fileno_croak (fh, 0);
799	dREQ;	1301	dREQ;
800		1302
…		…
808	}	1310	}
809		1311
810	void	1312	void
811	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1313	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
812	ALIAS:	1314	ALIAS:
813	aio_stat = EIO_STAT	1315	aio_stat = EIO_STAT
814	aio_lstat = EIO_LSTAT	1316	aio_lstat = EIO_LSTAT
		1317	aio_statvfs = EIO_STATVFS
815	PPCODE:	1318	PPCODE:
816	{	1319	{
817	dREQ;	1320	dREQ;
818		1321
819	req->sv1 = newSVsv (fh_or_path);	1322	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		1323
832	REQ_SEND;	1324	REQ_SEND;
833	}	1325	}
		1326
		1327	UV
		1328	major (UV dev)
		1329	ALIAS:
		1330	minor = 1
		1331	CODE:
		1332	RETVAL = ix ? major (dev) : minor (dev);
		1333	OUTPUT:
		1334	RETVAL
		1335
		1336	UV
		1337	makedev (UV maj, UV min)
		1338	CODE:
		1339	RETVAL = makedev (maj, min);
		1340	OUTPUT:
		1341	RETVAL
834		1342
835	void	1343	void
836	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1344	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
837	PPCODE:	1345	PPCODE:
838	{	1346	{
839	dREQ;	1347	dREQ;
840		1348
841	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1349	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
842	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1350	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
843	req->sv1 = newSVsv (fh_or_path);	1351	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		1352
856	REQ_SEND;	1353	REQ_SEND;
857	}	1354	}
858		1355
859	void	1356	void
860	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1357	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
861	PPCODE:	1358	PPCODE:
862	{	1359	{
863	dREQ;	1360	dREQ;
864		1361
865	req->sv1 = newSVsv (fh_or_path);
866	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1362	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
867		1363	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		1364
879	REQ_SEND;	1365	REQ_SEND;
880	}	1366	}
881		1367
882	void	1368	void
883	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1369	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:	1370	PPCODE:
888	{	1371	{
889	dREQ;	1372	dREQ;
890		1373
891	req->int2 = mode;	1374	req->int2 = mode;
892	req->sv1 = newSVsv (fh_or_path);	1375	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		1376
905	REQ_SEND;	1377	REQ_SEND;
906	}	1378	}
907		1379
908	void	1380	void
…		…
911	{	1383	{
912	dREQ;	1384	dREQ;
913		1385
914	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1386	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
915	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1387	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
916	req->sv1 = newSVsv (fh_or_path);	1388	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		1389
929	REQ_SEND;	1390	REQ_SEND;
930	}	1391	}
931		1392
932	void	1393	void
…		…
934	PPCODE:	1395	PPCODE:
935	{	1396	{
936	dREQ;	1397	dREQ;
937		1398
938	req->type = EIO_READDIR;	1399	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;	1400	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
942		1401
943	if (flags & EIO_READDIR_DENTS)	1402	if (flags & EIO_READDIR_DENTS)
944	req->int1 |= EIO_READDIR_CUSTOM2;	1403	req->int1 |= EIO_READDIR_CUSTOM2;
945		1404
		1405	req_set_path1 (req, pathname);
		1406
946	REQ_SEND;	1407	REQ_SEND;
		1408	}
		1409
		1410	void
		1411	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1412	PPCODE:
		1413	{
		1414	dREQ;
		1415
		1416	req->type = EIO_MKDIR;
		1417	req->int2 = mode;
		1418	req_set_path1 (req, pathname);
		1419
		1420	REQ_SEND;
947	}	1421	}
948		1422
949	void	1423	void
950	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1424	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
951	ALIAS:	1425	ALIAS:
…		…
955	PPCODE:	1429	PPCODE:
956	{	1430	{
957	dREQ;	1431	dREQ;
958		1432
959	req->type = ix;	1433	req->type = ix;
960	req->sv1 = newSVsv (pathname);	1434	req_set_path1 (req, pathname);
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962		1435
963	REQ_SEND;	1436	REQ_SEND;
964	}	1437	}
965		1438
966	void	1439	void
…		…
969	aio_link = EIO_LINK	1442	aio_link = EIO_LINK
970	aio_symlink = EIO_SYMLINK	1443	aio_symlink = EIO_SYMLINK
971	aio_rename = EIO_RENAME	1444	aio_rename = EIO_RENAME
972	PPCODE:	1445	PPCODE:
973	{	1446	{
		1447	eio_wd wd2 = 0;
974	dREQ;	1448	dREQ;
975		1449
976	req->type = ix;	1450	req->type = ix;
977	req->sv1 = newSVsv (oldpath);	1451	req_set_path1 (req, oldpath);
978	req->ptr1 = SvPVbyte_nolen (req->sv1);	1452	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
979	req->sv2 = newSVsv (newpath);	1453	req->int3 = (long)wd2;
980	req->ptr2 = SvPVbyte_nolen (req->sv2);
981		1454
982	REQ_SEND;	1455	REQ_SEND;
983	}	1456	}
984		1457
985	void	1458	void
…		…
987	PPCODE:	1460	PPCODE:
988	{	1461	{
989	dREQ;	1462	dREQ;
990		1463
991	req->type = EIO_MKNOD;	1464	req->type = EIO_MKNOD;
992	req->sv1 = newSVsv (pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994	req->int2 = (mode_t)mode;	1465	req->int2 = (mode_t)mode;
995	req->offs = dev;	1466	req->offs = dev;
		1467	req_set_path1 (req, pathname);
996		1468
997	REQ_SEND;	1469	REQ_SEND;
998	}	1470	}
999		1471
1000	void	1472	void
		1473	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1474	ALIAS:
		1475	aio_mtouch = EIO_MTOUCH
		1476	aio_msync = EIO_MSYNC
		1477	PPCODE:
		1478	{
		1479	STRLEN svlen;
		1480	char *svptr = SvPVbyte (data, svlen);
		1481	UV len = SvUV (length);
		1482
		1483	if (offset < 0)
		1484	offset += svlen;
		1485
		1486	if (offset < 0 || offset > svlen)
		1487	croak ("offset outside of scalar");
		1488
		1489	if (!SvOK (length) || len + offset > svlen)
		1490	len = svlen - offset;
		1491
		1492	{
		1493	dREQ;
		1494
		1495	req->type = ix;
		1496	req->sv2 = SvREFCNT_inc (data);
		1497	req->ptr2 = (char *)svptr + offset;
		1498	req->size = len;
		1499	req->int1 = flags;
		1500
		1501	REQ_SEND;
		1502	}
		1503	}
		1504
		1505	void
		1506	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1507	PPCODE:
		1508	{
		1509	STRLEN svlen;
		1510	char *svptr = SvPVbyte (data, svlen);
		1511	UV len = SvUV (length);
		1512
		1513	if (offset < 0)
		1514	offset += svlen;
		1515
		1516	if (offset < 0 || offset > svlen)
		1517	croak ("offset outside of scalar");
		1518
		1519	if (!SvOK (length) || len + offset > svlen)
		1520	len = svlen - offset;
		1521
		1522	{
		1523	dREQ;
		1524
		1525	req->type = EIO_MLOCK;
		1526	req->sv2 = SvREFCNT_inc (data);
		1527	req->ptr2 = (char *)svptr + offset;
		1528	req->size = len;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1536	PPCODE:
		1537	{
		1538	dREQ;
		1539
		1540	req->type = EIO_MLOCKALL;
		1541	req->int1 = flags;
		1542
		1543	REQ_SEND;
		1544	}
		1545
		1546	void
1001	aio_busy (double delay, SV *callback=&PL_sv_undef)	1547	aio_busy (double delay, SV *callback=&PL_sv_undef)
1002	PPCODE:	1548	PPCODE:
1003	{	1549	{
1004	dREQ;	1550	dREQ;
1005		1551
…		…
1009	REQ_SEND;	1555	REQ_SEND;
1010	}	1556	}
1011		1557
1012	void	1558	void
1013	aio_group (SV *callback=&PL_sv_undef)	1559	aio_group (SV *callback=&PL_sv_undef)
1014	PROTOTYPE: ;$
1015	PPCODE:	1560	PPCODE:
1016	{	1561	{
1017	dREQ;	1562	dREQ;
1018		1563
1019	req->type = EIO_GROUP;	1564	req->type = EIO_GROUP;
1020		1565
1021	req_submit (req);	1566	req_submit (req);
1022	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1567	XPUSHs (req_sv (req, aio_grp_stash));
1023	}	1568	}
1024		1569
1025	void	1570	void
1026	aio_nop (SV *callback=&PL_sv_undef)	1571	aio_nop (SV *callback=&PL_sv_undef)
1027	ALIAS:	1572	ALIAS:
…		…
1036	REQ_SEND;	1581	REQ_SEND;
1037	}	1582	}
1038		1583
1039	int	1584	int
1040	aioreq_pri (int pri = 0)	1585	aioreq_pri (int pri = 0)
1041	PROTOTYPE: ;$
1042	CODE:	1586	CODE:
1043	RETVAL = next_pri;	1587	RETVAL = next_pri;
1044	if (items > 0)	1588	if (items > 0)
1045	{	1589	{
1046	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1590	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1058	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1602	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1059	next_pri = nice;	1603	next_pri = nice;
1060		1604
1061	void	1605	void
1062	flush ()	1606	flush ()
1063	PROTOTYPE:
1064	CODE:	1607	CODE:
1065	while (eio_nreqs ())	1608	while (eio_nreqs ())
1066	{	1609	{
1067	poll_wait ();	1610	poll_wait ();
1068	poll_cb ();	1611	poll_cb ();
1069	}	1612	}
1070		1613
1071	int	1614	int
1072	poll()	1615	poll ()
1073	PROTOTYPE:
1074	CODE:	1616	CODE:
1075	poll_wait ();	1617	poll_wait ();
1076	RETVAL = poll_cb ();	1618	RETVAL = poll_cb ();
1077	OUTPUT:	1619	OUTPUT:
1078	RETVAL	1620	RETVAL
1079		1621
1080	int	1622	int
1081	poll_fileno()	1623	poll_fileno ()
1082	PROTOTYPE:
1083	CODE:	1624	CODE:
1084	RETVAL = s_epipe_fd (&respipe);	1625	RETVAL = s_epipe_fd (&respipe);
1085	OUTPUT:	1626	OUTPUT:
1086	RETVAL	1627	RETVAL
1087		1628
1088	int	1629	int
1089	poll_cb(...)	1630	poll_cb (...)
1090	PROTOTYPE:	1631	PROTOTYPE:
1091	CODE:	1632	CODE:
1092	RETVAL = poll_cb ();	1633	RETVAL = poll_cb ();
1093	OUTPUT:	1634	OUTPUT:
1094	RETVAL	1635	RETVAL
1095		1636
1096	void	1637	void
1097	poll_wait()	1638	poll_wait ()
1098	PROTOTYPE:
1099	CODE:	1639	CODE:
1100	poll_wait ();	1640	poll_wait ();
1101		1641
1102	int	1642	int
1103	nreqs()	1643	nreqs ()
1104	PROTOTYPE:
1105	CODE:	1644	CODE:
1106	RETVAL = eio_nreqs ();	1645	RETVAL = eio_nreqs ();
1107	OUTPUT:	1646	OUTPUT:
1108	RETVAL	1647	RETVAL
1109		1648
1110	int	1649	int
1111	nready()	1650	nready ()
1112	PROTOTYPE:
1113	CODE:	1651	CODE:
1114	RETVAL = eio_nready ();	1652	RETVAL = eio_nready ();
1115	OUTPUT:	1653	OUTPUT:
1116	RETVAL	1654	RETVAL
1117		1655
1118	int	1656	int
1119	npending()	1657	npending ()
1120	PROTOTYPE:
1121	CODE:	1658	CODE:
1122	RETVAL = eio_npending ();	1659	RETVAL = eio_npending ();
1123	OUTPUT:	1660	OUTPUT:
1124	RETVAL	1661	RETVAL
1125		1662
1126	int	1663	int
1127	nthreads()	1664	nthreads ()
1128	PROTOTYPE:
1129	CODE:	1665	CODE:
1130	RETVAL = eio_nthreads ();	1666	RETVAL = eio_nthreads ();
1131	OUTPUT:	1667	OUTPUT:
1132	RETVAL	1668	RETVAL
1133		1669
1134	int	1670	int
1135	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1671	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1136	PROTOTYPE: $$$$
1137	CODE:	1672	CODE:
1138	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1139	RETVAL = posix_fadvise (fh, offset, length, advice);	1673	RETVAL = posix_fadvise (fh, offset, length, advice);
1140	#else
1141	RETVAL = errno = ENOSYS;
1142	#endif
1143	OUTPUT:	1674	OUTPUT:
1144	RETVAL	1675	RETVAL
1145		1676
1146	ssize_t	1677	IV
1147	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1678	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1148	PROTOTYPE: $$$$
1149	CODE:	1679	CODE:
1150	eio_sendfile_sync (ofh, ifh, offset, count);	1680	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1681	OUTPUT:
		1682	RETVAL
		1683
		1684	void
		1685	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1686	PPCODE:
		1687	sv_unmagic (scalar, MMAP_MAGIC);
		1688	{
		1689	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1690	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1691	if (addr == (void *)-1)
		1692	XSRETURN_NO;
		1693
		1694	sv_force_normal (scalar);
		1695
		1696	/* we store the length in mg_obj, as namlen is I32 :/ */
		1697	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1698	->mg_obj = (SV *)length;
		1699
		1700	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1701
		1702	if (!(prot & PROT_WRITE))
		1703	SvREADONLY_on (scalar);
		1704
		1705	if (SvLEN (scalar))
		1706	Safefree (SvPVX (scalar));
		1707
		1708	SvPVX (scalar) = (char *)addr;
		1709	SvCUR_set (scalar, length);
		1710	SvLEN_set (scalar, 0);
		1711	SvPOK_only (scalar);
		1712
		1713	XSRETURN_YES;
		1714	}
		1715
		1716	void
		1717	munmap (SV *scalar)
		1718	CODE:
		1719	sv_unmagic (scalar, MMAP_MAGIC);
		1720
		1721	int
		1722	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1723	ALIAS:
		1724	mprotect = 1
		1725	CODE:
		1726	{
		1727	STRLEN svlen;
		1728	void *addr = SvPVbyte (scalar, svlen);
		1729	size_t len = SvUV (length);
		1730
		1731	if (offset < 0)
		1732	offset += svlen;
		1733
		1734	if (offset < 0 || offset > svlen)
		1735	croak ("offset outside of scalar");
		1736
		1737	if (!SvOK (length) || len + offset > svlen)
		1738	len = svlen - offset;
		1739
		1740	addr = (void *)(((intptr_t)addr) + offset);
		1741	eio_page_align (&addr, &len);
		1742
		1743	switch (ix)
		1744	{
		1745	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1746	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1747	}
		1748	}
		1749	OUTPUT:
		1750	RETVAL
		1751
		1752	int
		1753	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1754	CODE:
		1755	{
		1756	STRLEN svlen;
		1757	void *addr = SvPVbyte (scalar, svlen);
		1758	size_t len = SvUV (length);
		1759
		1760	if (offset < 0)
		1761	offset += svlen;
		1762
		1763	if (offset < 0 || offset > svlen)
		1764	croak ("offset outside of scalar");
		1765
		1766	if (!SvOK (length) || len + offset > svlen)
		1767	len = svlen - offset;
		1768
		1769	addr = (void *)(((intptr_t)addr) + offset);
		1770	eio_page_align (&addr, &len);
		1771	#if _POSIX_MEMLOCK_RANGE
		1772	RETVAL = munlock (addr, len);
		1773	#else
		1774	RETVAL = ((errno = ENOSYS), -1);
		1775	#endif
		1776	}
		1777	OUTPUT:
		1778	RETVAL
		1779
		1780	int
		1781	munlockall ()
		1782	CODE:
		1783	#if _POSIX_MEMLOCK
		1784	munlockall ();
		1785	#else
		1786	RETVAL = -1;
		1787	errno = ENOSYS;
		1788	#endif
		1789	OUTPUT:
		1790	RETVAL
1151		1791
1152	void _on_next_submit (SV *cb)	1792	void _on_next_submit (SV *cb)
1153	CODE:	1793	CODE:
1154	SvREFCNT_dec (on_next_submit);	1794	SvREFCNT_dec (on_next_submit);
1155	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1795	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1156		1796
1157	PROTOTYPES: DISABLE	1797	PROTOTYPES: DISABLE
1158		1798
		1799	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1800
		1801	BOOT:
		1802	{
		1803	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1804	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1805	}
		1806
		1807	void
		1808	DESTROY (SV *self)
		1809	CODE:
		1810	{
		1811	aio_wd wd = SvAIO_WD (self);
		1812	#if HAVE_AT
		1813	{
		1814	SV *callback = &PL_sv_undef;
		1815	dREQ; /* clobbers next_pri :/ */
		1816	next_pri = req->pri; /* restore next_pri */
		1817	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1818	req->type = EIO_WD_CLOSE;
		1819	req->wd = wd;
		1820	REQ_SEND;
		1821	}
		1822	#else
		1823	eio_wd_close_sync (wd);
		1824	#endif
		1825	}
		1826
1159	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1827	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1160		1828
1161	void	1829	void
1162	cancel (aio_req_ornot req)	1830	cancel (aio_req_ornot req)
1163	CODE:	1831	CODE:

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