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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.126 by root, Thu Sep 25 07:56:07 2008 UTC vs.
Revision 1.212 by root, Sun Apr 8 00:11:50 2012 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
18	/* perl namespace pollution */	33	/* perl namespace pollution */
19	#undef VERSION	34	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		35
70	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	38	#undef readdir
73	#undef opendir	39	#undef opendir
74	#undef closedir	40	#undef closedir
75		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	79	#else
82	# define SvVAL64 SvNV
83	#endif
84		80
85	static HV *stash;	81	#include <sys/time.h>
		82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
		89	#endif
		90
		91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
		95	#else
		96	# define expect(expr,value) (expr)
		97	#endif
		98
		99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
86	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
87		107
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		109
91	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
92	SV *callback; \	111	SV *callback; \
93	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
94	STRLEN stroffset; \	114	STRLEN stroffset; \
95	SV *self;	115	SV *self;
96		116
97	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
98		118
		119	#include "libeio/config.h"
99	#include "libeio/eio.h"	120	#include "libeio/eio.h"
100		121
101	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
106	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 64 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
107		221
108	enum {	222	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
110	};	224	};
111		225
112	#include "libeio/eio.c"
113
114	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
115	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
116		229
117	static SV *on_next_submit;	230	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	232	static int max_outstanding;
120		233
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	234	static s_epipe respipe;
122		235
123	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
125		238
126	static void want_poll (void)	239	static void
		240	want_poll (void)
127	{	241	{
128	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	243	s_epipe_signal (&respipe);
130	}	244	}
131		245
132	static void done_poll (void)	246	static void
		247	done_poll (void)
133	{	248	{
134	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
135	char buf [4];	250	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	251	}
139		252
140	/* must be called at most once */	253	/* must be called at most once */
141	static SV *req_sv (aio_req req, const char *klass)	254	static SV *
		255	req_sv (aio_req req, HV *stash)
142	{	256	{
143	if (!req->self)	257	if (!req->self)
144	{	258	{
145	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	261	}
148		262
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	264	}
151		265
152	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
153	{	274	{
154	MAGIC *mg;	275	MAGIC *mg;
155		276
156	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		280	&& SvSTASH (SvRV (sv)) != aio_req_stash
		281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
158		283
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		285
161	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	287	}
163		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
164	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
165	{	302	{
166	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
167	{	304	{
168	dSP;	305	dSP;
169		306
170	ENTER;	307	ENTER;
171	SAVETMPS;	308	SAVETMPS;
172	PUSHMARK (SP);	309	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	311	PUTBACK;
175	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176	SPAGAIN;	313	SPAGAIN;
177	FREETMPS;	314	FREETMPS;
178	LEAVE;	315	LEAVE;
179	}	316	}
180	}	317	}
181		318
		319	static void
182	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
183	{	321	{
184	eio_submit (req);	322	eio_submit (req);
185		323
186	if (on_next_submit)	324	if (expect_false (on_next_submit))
187	{	325	{
188	dSP;	326	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	327	SV *cb = sv_2mortal (on_next_submit);
190		328
191	on_next_submit = 0;	329	on_next_submit = 0;
…		…
194	PUTBACK;	332	PUTBACK;
195	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
196	}	334	}
197	}	335	}
198		336
		337	static int
199	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
200	{	339	{
201	dSP;
202
203	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
205		342
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
207	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
208	ENTER;	349	ENTER;
209	SAVETMPS;	350	SAVETMPS;
210	PUSHMARK (SP);	351	PUSHMARK (SP);
211	EXTEND (SP, 1);	352	EXTEND (SP, 1);
212		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
213	switch (req->type)	367	switch (req->type)
214	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
215	case EIO_READDIR:	373	case EIO_READDIR:
216	{	374	{
217	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
218		376
219	if (req->result >= 0)	377	if (req->result >= 0)
220	{	378	{
221	int i;	379	int i;
222	char *buf = req->ptr2;	380	char *names = (char *)req->ptr2;
		381	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
223	AV *av = newAV ();	382	AV *av = newAV ();
224		383
225	av_extend (av, req->result - 1);	384	av_extend (av, req->result - 1);
226		385
227	for (i = 0; i < req->result; ++i)	386	for (i = 0; i < req->result; ++i)
228	{	387	{
229	SV *sv = newSVpv (buf, 0);	388	if (req->int1 & EIO_READDIR_DENTS)
		389	{
		390	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		391
		392	if (req->int1 & EIO_READDIR_CUSTOM2)
		393	{
		394	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		395	AV *avent = newAV ();
		396
		397	av_extend (avent, 2);
		398
		399	if (!sv_type [ent->type])
		400	{
		401	sv_type [ent->type] = newSViv (ent->type);
		402	SvREADONLY_on (sv_type [ent->type]);
		403	}
		404
		405	av_store (avent, 0, namesv);
		406	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		407	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		408
		409	av_store (av, i, newRV_noinc ((SV *)avent));
		410	}
		411	else
231	av_store (av, i, sv);	412	av_store (av, i, namesv);
		413
		414	++ent;
		415	}
		416	else
		417	{
		418	SV *name = newSVpv (names, 0);
		419	av_store (av, i, name);
232	buf += SvCUR (sv) + 1;	420	names += SvCUR (name) + 1;
		421	}
233	}	422	}
234		423
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	424	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	425	}
237		426
238	PUSHs (rv);	427	PUSHs (rv);
		428
		429	if (req->int1 & EIO_READDIR_CUSTOM1)
		430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
239	}	431	}
240	break;	432	break;
241		433
242	case EIO_OPEN:	434	case EIO_OPEN:
243	{	435	{
…		…
249	GV *gv = (GV *)sv_newmortal ();	441	GV *gv = (GV *)sv_newmortal ();
250	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
251	char sym [64];	443	char sym [64];
252	int symlen;	444	int symlen;
253		445
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
255	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
256		448
257	symlen = snprintf (	449	symlen = snprintf (
258	sym,	450	sym,
259	sizeof (sym),	451	sizeof (sym),
260	"%s&=%d",	452	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result	454	(int)req->result
263	);	455	);
264		456
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
266	fh = (SV *)gv;	458	fh = (SV *)gv;
267	}	459	}
268		460
269	PUSHs (fh);	461	PUSHs (fh);
270	}	462	}
		463	break;
		464
		465	case EIO_STATVFS:
		466	case EIO_FSTATVFS:
		467	{
		468	SV *rv = &PL_sv_undef;
		469
		470	#ifndef _WIN32
		471	if (req->result >= 0)
		472	{
		473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		474	HV *hv = newHV ();
		475
		476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		477
		478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		489	}
		490	#endif
		491
		492	PUSHs (rv);
		493	}
		494
271	break;	495	break;
272		496
273	case EIO_GROUP:	497	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
275		499
…		…
287	case EIO_NOP:	511	case EIO_NOP:
288	case EIO_BUSY:	512	case EIO_BUSY:
289	break;	513	break;
290		514
291	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
292	if (req->result > 0)	517	if (req->result > 0)
293	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
294	break;	519	break;
295		520
296	case EIO_STAT:	521	case EIO_STAT:
297	case EIO_LSTAT:	522	case EIO_LSTAT:
298	case EIO_FSTAT:	523	case EIO_FSTAT:
299	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
300	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
301	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
303	break;	531	break;
304		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		535	break;
		536
305	case EIO_READ:	537	case EIO_READ:
		538	{
306	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
307	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
308	PUSHs (sv_2mortal (newSViv (req->result)));	541	SvPOK_only (req->sv2);
		542	SvSETMAGIC (req->sv2);
		543	PUSHs (sv_result);
		544	}
309	break;	545	break;
310		546
311	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
312	if (req->result > 0)	588	if (req->result > 0)
313	req->result = 0;	589	SvIV_set (sv_result, 0);
314	/* FALLTHROUGH */	590	/* FALLTHROUGH */
315		591
316	default:	592	default:
317	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
318	break;	594	break;
319	}	595	}
320		596
321	errno = req->errorno;	597	errno = req->errorno;
322		598
323	PUTBACK;	599	PUTBACK;
324	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
325	SPAGAIN;	601	SPAGAIN;
326		602
		603	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		604	SvREFCNT_dec (sv_result);
		605	else
		606	sv_result_cache = sv_result;
		607
327	FREETMPS;	608	FREETMPS;
328	LEAVE;	609	LEAVE;
329		610
330	PUTBACK;	611	PUTBACK;
331	}	612	}
332		613
333	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
334	}	615	}
335		616
		617	static void
336	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
337	{	619	{
338	if (req->self)	620	if (req->self)
339	{	621	{
340	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
341	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
342	}	624	}
343		625
344	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
345	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
346	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
347		631
348	Safefree (req);	632	free (req);
349	}	633	}
350		634
		635	static void
351	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
352	{	637	{
353	aio_req sub;
354
355	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
356	return;	639	return;
357		640
358	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
359	grp->sv2 = 0;	642	grp->sv2 = 0;
360		643
361	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
362	}	645	}
363		646
364	#ifdef USE_SOCKETS_AS_HANDLES	647	static void ecb_cold
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))	648	create_respipe (void)
366	#else	649	{
367	# define TO_SOCKET(x) (x)	650	if (s_epipe_renew (&respipe))
368	#endif	651	croak ("IO::AIO: unable to initialize result pipe");
		652	}
369		653
370	static void	654	static void
371	create_respipe (void)	655	poll_wait (void)
372	{	656	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))
382	#endif
383	croak ("unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}
407
408	static void poll_wait (void)
409	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	657	while (eio_nreqs ())
413	{	658	{
414	int size;	659	int size;
415		660
416	X_LOCK (reslock);	661	X_LOCK (reslock);
…		…
420	if (size)	665	if (size)
421	return;	666	return;
422		667
423	etp_maybe_start_thread ();	668	etp_maybe_start_thread ();
424		669
425	FD_ZERO (&rfd);	670	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	671	}
430	}	672	}
431		673
432	static int poll_cb (void)	674	static int
		675	poll_cb (void)
433	{	676	{
434	for (;;)	677	for (;;)
435	{	678	{
436	int res = eio_poll ();	679	int res = eio_poll ();
437		680
…		…
443		686
444	poll_wait ();	687	poll_wait ();
445	}	688	}
446	}	689	}
447		690
448	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
449	{	693	{
450	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
		698	}
		699
		700	/*****************************************************************************/
		701
		702	#if !_POSIX_MAPPED_FILES
		703	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		704	# define munmap(addr,length) (errno = ENOSYS, -1)
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
		714	#endif
		715
		716	#define MMAP_MAGIC PERL_MAGIC_ext
		717
		718	static int ecb_cold
		719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		720	{
		721	int old_errno = errno;
		722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		723	errno = old_errno;
		724
		725	mg->mg_obj = 0; /* just in case */
		726
		727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
		732	SvCUR_set (sv, 0);
		733	SvPVX (sv) = 0;
		734	SvOK_off (sv);
		735
		736	return 0;
		737	}
		738
		739	static MGVTBL mmap_vtbl = {
		740	0, 0, 0, 0, mmap_free
		741	};
		742
		743	/*****************************************************************************/
		744
		745	static SV *
		746	get_cb (SV *cb_sv)
		747	{
		748	SvGETMAGIC (cb_sv);
		749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		750	}
		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
451	}	770	}
452		771
453	#define dREQ \	772	#define dREQ \
454	aio_req req; \	773	aio_req req = dreq (callback); \
455	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \
457	\
458	if (SvOK (callback) && !SvROK (callback)) \
459	croak ("callback must be undef or of reference type"); \
460	\
461	Newz (0, req, 1, eio_req); \
462	if (!req) \
463	croak ("out of memory during eio_req allocation"); \
464	\
465	req->callback = newSVsv (callback); \
466	req->pri = req_pri
467		774
468	#define REQ_SEND \	775	#define REQ_SEND \
469	PUTBACK; \	776	PUTBACK; \
470	req_submit (req); \	777	req_submit (req); \
471	SPAGAIN; \	778	SPAGAIN; \
472	\	779	\
473	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
474	XPUSHs (req_sv (req, AIO_REQ_KLASS));	781	XPUSHs (req_sv (req, aio_req_stash));
475		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
		848
476	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
477		850
478	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
479		852
480	BOOT:	853	BOOT:
481	{	854	{
		855	static const struct {
		856	const char *name;
		857	IV iv;
		858	} *civ, const_iv[] = {
		859	# define const_niv(name, value) { # name, (IV) value },
		860	# define const_iv(name) { # name, (IV) name },
		861	# define const_eio(name) { # name, (IV) EIO_ ## name },
		862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
		865	const_iv (ENOSYS)
		866	const_iv (EXDEV)
		867	const_iv (EBADR)
		868
		869	const_iv (O_RDONLY)
		870	const_iv (O_WRONLY)
		871	const_iv (O_RDWR)
		872	const_iv (O_CREAT)
		873	const_iv (O_TRUNC)
		874	const_iv (O_EXCL)
		875	const_iv (O_APPEND)
		876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
		893	const_iv (S_IFIFO)
		894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
		903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		915
		916	const_iv (ST_RDONLY)
		917	const_iv (ST_NOSUID)
		918	const_iv (ST_NODEV)
		919	const_iv (ST_NOEXEC)
		920	const_iv (ST_SYNCHRONOUS)
		921	const_iv (ST_MANDLOCK)
		922	const_iv (ST_WRITE)
		923	const_iv (ST_APPEND)
		924	const_iv (ST_IMMUTABLE)
		925	const_iv (ST_NOATIME)
		926	const_iv (ST_NODIRATIME)
		927	const_iv (ST_RELATIME)
		928
		929	const_iv (PROT_NONE)
		930	const_iv (PROT_EXEC)
		931	const_iv (PROT_READ)
		932	const_iv (PROT_WRITE)
		933
		934	/*const_iv (MAP_FIXED)*/
		935	const_iv (MAP_PRIVATE)
		936	const_iv (MAP_SHARED)
		937	const_iv (MAP_ANONYMOUS)
		938
		939	/* linuxish */
		940	const_iv (MAP_HUGETLB)
		941	const_iv (MAP_LOCKED)
		942	const_iv (MAP_NORESERVE)
		943	const_iv (MAP_POPULATE)
		944	const_iv (MAP_NONBLOCK)
		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_eio (SEEK_SET)
		962	const_eio (SEEK_CUR)
		963	const_eio (SEEK_END)
		964
		965	const_eio (MCL_FUTURE)
		966	const_eio (MCL_CURRENT)
		967
		968	const_eio (MS_ASYNC)
		969	const_eio (MS_INVALIDATE)
		970	const_eio (MS_SYNC)
		971
		972	const_eio (MT_MODIFY)
		973
		974	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		975	const_eio (SYNC_FILE_RANGE_WRITE)
		976	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		977
		978	const_eio (FALLOC_FL_KEEP_SIZE)
		979
		980	const_eio (READDIR_DENTS)
		981	const_eio (READDIR_DIRS_FIRST)
		982	const_eio (READDIR_STAT_ORDER)
		983	const_eio (READDIR_FOUND_UNKNOWN)
		984
		985	const_eio (DT_UNKNOWN)
		986	const_eio (DT_FIFO)
		987	const_eio (DT_CHR)
		988	const_eio (DT_DIR)
		989	const_eio (DT_BLK)
		990	const_eio (DT_REG)
		991	const_eio (DT_LNK)
		992	const_eio (DT_SOCK)
		993	const_eio (DT_WHT)
		994	};
		995
482	stash = gv_stashpv ("IO::AIO", 1);	996	aio_stash = gv_stashpv ("IO::AIO" , 1);
		997	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		998	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		999	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
483		1000
484	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1001	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
485	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1002	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
486	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
487	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
488	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
489	#ifndef _WIN32
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		1003
493	create_respipe ();	1004	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
494		1005
495	if (eio_init (want_poll, done_poll) < 0)	1006	reinit ();
496	croak ("IO::AIO: unable to initialise eio library");
497
498	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	1007	}
501		1008
502	void	1009	void
		1010	reinit ()
		1011	PROTOTYPE:
		1012
		1013	void
503	max_poll_reqs (int nreqs)	1014	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	1015	PROTOTYPE: $
505	CODE:	1016	CODE:
506	eio_set_max_poll_reqs (nreqs);	1017	eio_set_max_poll_reqs (nreqs);
507		1018
508	void	1019	void
…		…
510	PROTOTYPE: $	1021	PROTOTYPE: $
511	CODE:	1022	CODE:
512	eio_set_max_poll_time (nseconds);	1023	eio_set_max_poll_time (nseconds);
513		1024
514	void	1025	void
515	min_parallel (int nthreads)	1026	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	1027	PROTOTYPE: $
517	CODE:	1028	CODE:
518	eio_set_min_parallel (nthreads);	1029	eio_set_min_parallel (nthreads);
519		1030
520	void	1031	void
521	max_parallel (int nthreads)	1032	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	1033	PROTOTYPE: $
523	CODE:	1034	CODE:
524	eio_set_max_parallel (nthreads);	1035	eio_set_max_parallel (nthreads);
525		1036
526	void	1037	void
527	max_idle (int nthreads)	1038	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	1039	PROTOTYPE: $
529	CODE:	1040	CODE:
530	eio_set_max_idle (nthreads);	1041	eio_set_max_idle (nthreads);
531		1042
532	void	1043	void
		1044	idle_timeout (unsigned int seconds)
		1045	PROTOTYPE: $
		1046	CODE:
		1047	eio_set_idle_timeout (seconds);
		1048
		1049	void
533	max_outstanding (int maxreqs)	1050	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	1051	PROTOTYPE: $
535	CODE:	1052	CODE:
536	max_outstanding = maxreqs;	1053	max_outstanding = maxreqs;
537		1054
538	void	1055	void
		1056	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1057	PPCODE:
		1058	{
		1059	dREQ;
		1060
		1061	req->type = EIO_WD_OPEN;
		1062	req_set_path1 (req, pathname);
		1063
		1064	REQ_SEND;
		1065	}
		1066
		1067	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1068	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	1069	PPCODE:
542	{	1070	{
543	dREQ;	1071	dREQ;
544		1072
545	req->type = EIO_OPEN;	1073	req->type = EIO_OPEN;
546	req->sv1 = newSVsv (pathname);	1074	req_set_path1 (req, pathname);
547	req->ptr1 = SvPVbyte_nolen (req->sv1);
548	req->int1 = flags;	1075	req->int1 = flags;
549	req->int2 = mode;	1076	req->int2 = mode;
550		1077
551	REQ_SEND;	1078	REQ_SEND;
552	}	1079	}
553		1080
554	void	1081	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1082	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	1083	ALIAS:
558	aio_fsync = EIO_FSYNC	1084	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	1085	aio_fdatasync = EIO_FDATASYNC
		1086	aio_syncfs = EIO_SYNCFS
560	PPCODE:	1087	PPCODE:
561	{	1088	{
		1089	int fd = s_fileno_croak (fh, 0);
562	dREQ;	1090	dREQ;
563		1091
564	req->type = ix;	1092	req->type = ix;
565	req->sv1 = newSVsv (fh);	1093	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1094	req->int1 = fd;
567		1095
568	REQ_SEND (req);	1096	REQ_SEND;
		1097	}
		1098
		1099	void
		1100	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1101	PPCODE:
		1102	{
		1103	int fd = s_fileno_croak (fh, 0);
		1104	dREQ;
		1105
		1106	req->type = EIO_SYNC_FILE_RANGE;
		1107	req->sv1 = newSVsv (fh);
		1108	req->int1 = fd;
		1109	req->offs = offset;
		1110	req->size = nbytes;
		1111	req->int2 = flags;
		1112
		1113	REQ_SEND;
		1114	}
		1115
		1116	void
		1117	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1118	PPCODE:
		1119	{
		1120	int fd = s_fileno_croak (fh, 0);
		1121	dREQ;
		1122
		1123	req->type = EIO_FALLOCATE;
		1124	req->sv1 = newSVsv (fh);
		1125	req->int1 = fd;
		1126	req->int2 = mode;
		1127	req->offs = offset;
		1128	req->size = len;
		1129
		1130	REQ_SEND;
569	}	1131	}
570		1132
571	void	1133	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1135	PPCODE:
575	{	1136	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1137	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1138	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1139	dREQ;
578		1140
579	if (close_pipe < 0)	1141	if (expect_false (close_fd < 0))
580	{	1142	{
581	int pipefd [2];	1143	int pipefd [2];
582		1144
		1145	if (
		1146	#ifdef _WIN32
		1147	_pipe (pipefd, 1, _O_BINARY) < 0
		1148	#else
583	if (pipe (pipefd) < 0	1149	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1150	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1151	#endif
		1152	|| close (pipefd [1]) < 0
		1153	)
586	abort (); /*D*/	1154	abort (); /*D*/
587		1155
588	close_pipe = pipefd [0];	1156	close_fd = pipefd [0];
589	}	1157	}
590		1158
591	req->type = EIO_DUP2;	1159	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1160	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1161	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1162	req->int2 = fd;
595		1163
596	REQ_SEND (req);	1164	REQ_SEND;
		1165	}
		1166
		1167	void
		1168	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1169	PPCODE:
		1170	{
		1171	int fd = s_fileno_croak (fh, 0);
		1172	dREQ;
		1173
		1174	req->type = EIO_SEEK;
		1175	req->sv1 = newSVsv (fh);
		1176	req->int1 = fd;
		1177	req->offs = SvVAL64 (offset);
		1178	req->int2 = whence;
		1179
		1180	REQ_SEND;
597	}	1181	}
598		1182
599	void	1183	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1184	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	1185	ALIAS:
602	aio_read = EIO_READ	1186	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1187	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1188	PPCODE:
606	{	1189	{
607	STRLEN svlen;	1190	STRLEN svlen;
		1191	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1192	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1193	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1194
614	if (dataoffset < 0)	1195	if (dataoffset < 0)
615	dataoffset += svlen;	1196	dataoffset += svlen;
616		1197
617	if (dataoffset < 0 || dataoffset > svlen)	1198	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1204	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1205	len = svlen - dataoffset;
625	}	1206	}
626	else	1207	else
627	{	1208	{
628	/* read: grow scalar as necessary */	1209	/* read: check type and grow scalar as necessary */
		1210	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	1211	svptr = SvGROW (data, len + dataoffset + 1);
630	}	1212	}
631		1213
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	1214	{
636	dREQ;	1215	dREQ;
637		1216
638	req->type = ix;	1217	req->type = ix;
639	req->sv1 = newSVsv (fh);	1218	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1219	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1220	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1221	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1222	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1223	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1224	req->stroffset = dataoffset;
…		…
654	REQ_SEND;	1232	REQ_SEND;
655	}	1233	}
656	}	1234	}
657		1235
658	void	1236	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1237	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$	1238	ALIAS:
		1239	aio_readlink = EIO_READLINK
		1240	aio_realpath = EIO_REALPATH
661	PPCODE:	1241	PPCODE:
662	{	1242	{
663	SV *data;
664	dREQ;	1243	dREQ;
665		1244
666	req->type = EIO_READLINK;	1245	req->type = ix;
667	req->sv1 = newSVsv (path);	1246	req_set_path1 (req, pathname);
668	req->ptr1 = SvPVbyte_nolen (req->sv1);
669		1247
670	REQ_SEND;	1248	REQ_SEND;
671	}	1249	}
672		1250
673	void	1251	void
674	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1252	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
675	PROTOTYPE: $$$$;$
676	PPCODE:	1253	PPCODE:
677	{	1254	{
		1255	int ifd = s_fileno_croak (in_fh , 0);
		1256	int ofd = s_fileno_croak (out_fh, 1);
678	dREQ;	1257	dREQ;
679		1258
680	req->type = EIO_SENDFILE;	1259	req->type = EIO_SENDFILE;
681	req->sv1 = newSVsv (out_fh);	1260	req->sv1 = newSVsv (out_fh);
682	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1261	req->int1 = ofd;
683	req->sv2 = newSVsv (in_fh);	1262	req->sv2 = newSVsv (in_fh);
684	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1263	req->int2 = ifd;
685	req->offs = SvVAL64 (in_offset);	1264	req->offs = in_offset;
686	req->size = length;	1265	req->size = length;
687		1266
688	REQ_SEND;	1267	REQ_SEND;
689	}	1268	}
690		1269
691	void	1270	void
692	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1271	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
693	PROTOTYPE: $$$;$
694	PPCODE:	1272	PPCODE:
695	{	1273	{
		1274	int fd = s_fileno_croak (fh, 0);
696	dREQ;	1275	dREQ;
697		1276
698	req->type = EIO_READAHEAD;	1277	req->type = EIO_READAHEAD;
699	req->sv1 = newSVsv (fh);	1278	req->sv1 = newSVsv (fh);
700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1279	req->int1 = fd;
701	req->offs = SvVAL64 (offset);	1280	req->offs = offset;
702	req->size = length;	1281	req->size = length;
703		1282
704	REQ_SEND;	1283	REQ_SEND;
705	}	1284	}
706		1285
707	void	1286	void
708	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1287	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
709	ALIAS:	1288	ALIAS:
710	aio_stat = EIO_STAT	1289	aio_stat = EIO_STAT
711	aio_lstat = EIO_LSTAT	1290	aio_lstat = EIO_LSTAT
		1291	aio_statvfs = EIO_STATVFS
712	PPCODE:	1292	PPCODE:
713	{	1293	{
714	dREQ;	1294	dREQ;
715		1295
716	req->sv1 = newSVsv (fh_or_path);	1296	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
717
718	if (SvPOK (req->sv1))
719	{
720	req->type = ix;
721	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	}
723	else
724	{
725	req->type = EIO_FSTAT;
726	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
727	}
728		1297
729	REQ_SEND;	1298	REQ_SEND;
730	}	1299	}
		1300
		1301	UV
		1302	major (UV dev)
		1303	ALIAS:
		1304	minor = 1
		1305	CODE:
		1306	RETVAL = ix ? major (dev) : minor (dev);
		1307	OUTPUT:
		1308	RETVAL
		1309
		1310	UV
		1311	makedev (UV maj, UV min)
		1312	CODE:
		1313	RETVAL = makedev (maj, min);
		1314	OUTPUT:
		1315	RETVAL
731		1316
732	void	1317	void
733	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1318	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
734	PPCODE:	1319	PPCODE:
735	{	1320	{
736	dREQ;	1321	dREQ;
737		1322
738	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1323	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
739	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1324	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
740	req->sv1 = newSVsv (fh_or_path);	1325	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
741
742	if (SvPOK (req->sv1))
743	{
744	req->type = EIO_UTIME;
745	req->ptr1 = SvPVbyte_nolen (req->sv1);
746	}
747	else
748	{
749	req->type = EIO_FUTIME;
750	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
751	}
752		1326
753	REQ_SEND;	1327	REQ_SEND;
754	}	1328	}
755		1329
756	void	1330	void
757	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1331	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
758	PPCODE:	1332	PPCODE:
759	{	1333	{
760	dREQ;	1334	dREQ;
761		1335
762	req->sv1 = newSVsv (fh_or_path);
763	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1336	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
764		1337	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
765	if (SvPOK (req->sv1))
766	{
767	req->type = EIO_TRUNCATE;
768	req->ptr1 = SvPVbyte_nolen (req->sv1);
769	}
770	else
771	{
772	req->type = EIO_FTRUNCATE;
773	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
774	}
775		1338
776	REQ_SEND;	1339	REQ_SEND;
777	}	1340	}
778		1341
779	void	1342	void
780	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1343	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
781	ALIAS:
782	aio_chmod = EIO_CHMOD
783	aio_mkdir = EIO_MKDIR
784	PPCODE:	1344	PPCODE:
785	{	1345	{
786	dREQ;	1346	dREQ;
787		1347
788	req->int2 = mode;	1348	req->int2 = mode;
789	req->sv1 = newSVsv (fh_or_path);	1349	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
790
791	if (SvPOK (req->sv1))
792	{
793	req->type = ix;
794	req->ptr1 = SvPVbyte_nolen (req->sv1);
795	}
796	else
797	{
798	req->type = EIO_FCHMOD;
799	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
800	}
801		1350
802	REQ_SEND;	1351	REQ_SEND;
803	}	1352	}
804		1353
805	void	1354	void
…		…
808	{	1357	{
809	dREQ;	1358	dREQ;
810		1359
811	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1360	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
812	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1361	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
813	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
814		1363
815	if (SvPOK (req->sv1))	1364	REQ_SEND;
816	{	1365	}
		1366
		1367	void
		1368	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1369	PPCODE:
		1370	{
		1371	dREQ;
		1372
		1373	req->type = EIO_READDIR;
		1374	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1375
		1376	if (flags & EIO_READDIR_DENTS)
		1377	req->int1 |= EIO_READDIR_CUSTOM2;
		1378
		1379	req_set_path1 (req, pathname);
		1380
		1381	REQ_SEND;
		1382	}
		1383
		1384	void
		1385	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1386	PPCODE:
		1387	{
		1388	dREQ;
		1389
817	req->type = EIO_CHOWN;	1390	req->type = EIO_MKDIR;
818	req->ptr1 = SvPVbyte_nolen (req->sv1);	1391	req->int2 = mode;
819	}	1392	req_set_path1 (req, pathname);
820	else
821	{
822	req->type = EIO_FCHOWN;
823	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
824	}
825		1393
826	REQ_SEND;	1394	REQ_SEND;
827	}	1395	}
828		1396
829	void	1397	void
…		…
835	PPCODE:	1403	PPCODE:
836	{	1404	{
837	dREQ;	1405	dREQ;
838		1406
839	req->type = ix;	1407	req->type = ix;
840	req->sv1 = newSVsv (pathname);	1408	req_set_path1 (req, pathname);
841	req->ptr1 = SvPVbyte_nolen (req->sv1);
842		1409
843	REQ_SEND;	1410	REQ_SEND;
844	}	1411	}
845		1412
846	void	1413	void
…		…
849	aio_link = EIO_LINK	1416	aio_link = EIO_LINK
850	aio_symlink = EIO_SYMLINK	1417	aio_symlink = EIO_SYMLINK
851	aio_rename = EIO_RENAME	1418	aio_rename = EIO_RENAME
852	PPCODE:	1419	PPCODE:
853	{	1420	{
		1421	eio_wd wd2 = 0;
854	dREQ;	1422	dREQ;
855		1423
856	req->type = ix;	1424	req->type = ix;
857	req->sv1 = newSVsv (oldpath);	1425	req_set_path1 (req, oldpath);
858	req->ptr1 = SvPVbyte_nolen (req->sv1);	1426	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
859	req->sv2 = newSVsv (newpath);	1427	req->int3 = (long)wd2;
860	req->ptr2 = SvPVbyte_nolen (req->sv2);
861		1428
862	REQ_SEND;	1429	REQ_SEND;
863	}	1430	}
864		1431
865	void	1432	void
…		…
867	PPCODE:	1434	PPCODE:
868	{	1435	{
869	dREQ;	1436	dREQ;
870		1437
871	req->type = EIO_MKNOD;	1438	req->type = EIO_MKNOD;
872	req->sv1 = newSVsv (pathname);
873	req->ptr1 = SvPVbyte_nolen (req->sv1);
874	req->int2 = (mode_t)mode;	1439	req->int2 = (mode_t)mode;
875	req->offs = dev;	1440	req->offs = dev;
		1441	req_set_path1 (req, pathname);
876		1442
877	REQ_SEND;	1443	REQ_SEND;
878	}	1444	}
879		1445
880	void	1446	void
		1447	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1448	ALIAS:
		1449	aio_mtouch = EIO_MTOUCH
		1450	aio_msync = EIO_MSYNC
		1451	PPCODE:
		1452	{
		1453	STRLEN svlen;
		1454	char *svptr = SvPVbyte (data, svlen);
		1455	UV len = SvUV (length);
		1456
		1457	if (offset < 0)
		1458	offset += svlen;
		1459
		1460	if (offset < 0 || offset > svlen)
		1461	croak ("offset outside of scalar");
		1462
		1463	if (!SvOK (length) || len + offset > svlen)
		1464	len = svlen - offset;
		1465
		1466	{
		1467	dREQ;
		1468
		1469	req->type = ix;
		1470	req->sv2 = SvREFCNT_inc (data);
		1471	req->ptr2 = (char *)svptr + offset;
		1472	req->size = len;
		1473	req->int1 = flags;
		1474
		1475	REQ_SEND;
		1476	}
		1477	}
		1478
		1479	void
		1480	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1481	PPCODE:
		1482	{
		1483	STRLEN svlen;
		1484	char *svptr = SvPVbyte (data, svlen);
		1485	UV len = SvUV (length);
		1486
		1487	if (offset < 0)
		1488	offset += svlen;
		1489
		1490	if (offset < 0 || offset > svlen)
		1491	croak ("offset outside of scalar");
		1492
		1493	if (!SvOK (length) || len + offset > svlen)
		1494	len = svlen - offset;
		1495
		1496	{
		1497	dREQ;
		1498
		1499	req->type = EIO_MLOCK;
		1500	req->sv2 = SvREFCNT_inc (data);
		1501	req->ptr2 = (char *)svptr + offset;
		1502	req->size = len;
		1503
		1504	REQ_SEND;
		1505	}
		1506	}
		1507
		1508	void
		1509	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1510	PPCODE:
		1511	{
		1512	dREQ;
		1513
		1514	req->type = EIO_MLOCKALL;
		1515	req->int1 = flags;
		1516
		1517	REQ_SEND;
		1518	}
		1519
		1520	void
		1521	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1522	PPCODE:
		1523	{
		1524	int fd = s_fileno_croak (fh, 0);
		1525	dREQ;
		1526
		1527	req->type = EIO_CUSTOM;
		1528	req->sv1 = newSVsv (fh);
		1529	req->int1 = fd;
		1530
		1531	req->feed = fiemap;
		1532	#if HAVE_FIEMAP
		1533	/* keep our fingers crossed that the next two types are 64 bit */
		1534	req->offs = start;
		1535	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1536	req->int2 = flags;
		1537	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1538	#endif
		1539
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
881	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
882	PPCODE:	1545	PPCODE:
883	{	1546	{
884	dREQ;	1547	dREQ;
885		1548
…		…
889	REQ_SEND;	1552	REQ_SEND;
890	}	1553	}
891		1554
892	void	1555	void
893	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
894	PROTOTYPE: ;$
895	PPCODE:	1557	PPCODE:
896	{	1558	{
897	dREQ;	1559	dREQ;
898		1560
899	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
900		1562
901	eio_submit (req);	1563	req_submit (req);
902	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1564	XPUSHs (req_sv (req, aio_grp_stash));
903	}	1565	}
904		1566
905	void	1567	void
906	aio_nop (SV *callback=&PL_sv_undef)	1568	aio_nop (SV *callback=&PL_sv_undef)
907	ALIAS:	1569	ALIAS:
…		…
916	REQ_SEND;	1578	REQ_SEND;
917	}	1579	}
918		1580
919	int	1581	int
920	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
921	PROTOTYPE: ;$
922	CODE:	1583	CODE:
923	RETVAL = next_pri;	1584	RETVAL = next_pri;
924	if (items > 0)	1585	if (items > 0)
925	{	1586	{
926	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
938	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
939	next_pri = nice;	1600	next_pri = nice;
940		1601
941	void	1602	void
942	flush ()	1603	flush ()
943	PROTOTYPE:
944	CODE:	1604	CODE:
945	while (eio_nreqs ())	1605	while (eio_nreqs ())
946	{	1606	{
947	poll_wait ();	1607	poll_wait ();
948	poll_cb ();	1608	poll_cb ();
949	}	1609	}
950		1610
951	int	1611	int
952	poll()	1612	poll ()
953	PROTOTYPE:
954	CODE:	1613	CODE:
955	poll_wait ();	1614	poll_wait ();
956	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
957	OUTPUT:	1616	OUTPUT:
958	RETVAL	1617	RETVAL
959		1618
960	int	1619	int
961	poll_fileno()	1620	poll_fileno ()
962	PROTOTYPE:
963	CODE:	1621	CODE:
964	RETVAL = respipe [0];	1622	RETVAL = s_epipe_fd (&respipe);
965	OUTPUT:	1623	OUTPUT:
966	RETVAL	1624	RETVAL
967		1625
968	int	1626	int
969	poll_cb(...)	1627	poll_cb (...)
970	PROTOTYPE:	1628	PROTOTYPE:
971	CODE:	1629	CODE:
972	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
973	OUTPUT:	1631	OUTPUT:
974	RETVAL	1632	RETVAL
975		1633
976	void	1634	void
977	poll_wait()	1635	poll_wait ()
978	PROTOTYPE:
979	CODE:	1636	CODE:
980	poll_wait ();	1637	poll_wait ();
981		1638
982	int	1639	int
983	nreqs()	1640	nreqs ()
984	PROTOTYPE:
985	CODE:	1641	CODE:
986	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
987	OUTPUT:	1643	OUTPUT:
988	RETVAL	1644	RETVAL
989		1645
990	int	1646	int
991	nready()	1647	nready ()
992	PROTOTYPE:
993	CODE:	1648	CODE:
994	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
995	OUTPUT:	1650	OUTPUT:
996	RETVAL	1651	RETVAL
997		1652
998	int	1653	int
999	npending()	1654	npending ()
1000	PROTOTYPE:
1001	CODE:	1655	CODE:
1002	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1003	OUTPUT:	1657	OUTPUT:
1004	RETVAL	1658	RETVAL
1005		1659
1006	int	1660	int
1007	nthreads()	1661	nthreads ()
1008	PROTOTYPE:
1009	CODE:	1662	CODE:
1010	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1011	OUTPUT:	1664	OUTPUT:
1012	RETVAL	1665	RETVAL
1013		1666
		1667	int
		1668	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1669	CODE:
		1670	RETVAL = posix_fadvise (fh, offset, length, advice);
		1671	OUTPUT:
		1672	RETVAL
		1673
		1674	IV
		1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1676	CODE:
		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
		1788
1014	void _on_next_submit (SV *cb)	1789	void _on_next_submit (SV *cb)
1015	CODE:	1790	CODE:
1016	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1017	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1018		1793
1019	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1020		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
1021	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1022		1825
1023	void	1826	void
1024	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1025	CODE:	1828	CODE:
1026	eio_cancel (req);	1829	eio_cancel (req);
1027		1830
1028	void	1831	void
1029	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1832	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1030	CODE:	1833	PPCODE:
		1834	{
		1835	if (GIMME_V != G_VOID)
		1836	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1837
		1838	if (items > 1)
		1839	{
		1840	SV *cb_cv =get_cb (callback);
		1841
1031	SvREFCNT_dec (req->callback);	1842	SvREFCNT_dec (req->callback);
1032	req->callback = newSVsv (callback);	1843	req->callback = SvREFCNT_inc (cb_cv);
		1844	}
		1845	}
1033		1846
1034	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1847	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1035		1848
1036	void	1849	void
1037	add (aio_req grp, ...)	1850	add (aio_req grp, ...)
…		…
1069	AV *av;	1882	AV *av;
1070		1883
1071	grp->errorno = errno;	1884	grp->errorno = errno;
1072		1885
1073	av = newAV ();	1886	av = newAV ();
		1887	av_extend (av, items - 1);
1074		1888
1075	for (i = 1; i < items; ++i )	1889	for (i = 1; i < items; ++i )
1076	av_push (av, newSVsv (ST (i)));	1890	av_push (av, newSVsv (ST (i)));
1077		1891
1078	SvREFCNT_dec (grp->sv1);	1892	SvREFCNT_dec (grp->sv1);
…		…
1092	void	1906	void
1093	feed (aio_req grp, SV *callback=&PL_sv_undef)	1907	feed (aio_req grp, SV *callback=&PL_sv_undef)
1094	CODE:	1908	CODE:
1095	{	1909	{
1096	SvREFCNT_dec (grp->sv2);	1910	SvREFCNT_dec (grp->sv2);
1097	grp->sv2 = newSVsv (callback);	1911	grp->sv2 = newSVsv (callback);
		1912	grp->feed = aio_grp_feed;
1098		1913
1099	if (grp->int2 <= 0)	1914	if (grp->int2 <= 0)
1100	grp->int2 = 2;	1915	grp->int2 = 2;
1101		1916
1102	eio_grp_limit (grp, grp->int2);	1917	eio_grp_limit (grp, grp->int2);

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