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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.133 by root, Wed Oct 22 18:15:36 2008 UTC vs.
Revision 1.228 by root, Fri Jan 24 23:46:16 2014 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	80
		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
83	#endif	89	#endif
84		90
85	/*****************************************************************************/	91	/*****************************************************************************/
86		92
87	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
95		101
96	/*****************************************************************************/	102	/*****************************************************************************/
97		103
98	static HV *stash;
99	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 */
100		107
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		109
104	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
105	SV *callback; \	111	SV *callback; \
106	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
107	STRLEN stroffset; \	114	STRLEN stroffset; \
108	SV *self;	115	SV *self;
109		116
110	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
111		118
		119	#include "libeio/config.h"
112	#include "libeio/eio.h"	120	#include "libeio/eio.h"
113		121
114	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
118		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	#if PAGESIZE <= 0
		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	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (actually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		224	return;
		225
		226	if (!incmap->fm_mapped_extents)
		227	goto done;
		228
		229	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		230	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		231	errno = ENOMEM;
		232	if (!fiemap)
		233	return;
		234
		235	req->ptr1 = fiemap;
		236
		237	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		238	{
		239	struct fiemap_extent *e = incmap->fm_extents + count;
		240
		241	if (e->fe_logical + e->fe_length >= end_offset)
		242	goto done;
		243
		244	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		245
		246	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		247	goto done;
		248
		249	}
		250	}
		251
		252	done:
		253	req->result = 0;
		254
		255	#else
		256	errno = ENOSYS;
		257	#endif
		258	}
		259
		260	/*****************************************************************************/
		261
119	enum {	262	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	264	};
122		265
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
127		269
128	static SV *on_next_submit;	270	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	271	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	272	static int max_outstanding;
131		273
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	274	static s_epipe respipe;
133		275
134	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
136		278
137	static void want_poll (void)	279	static void
		280	want_poll (void)
138	{	281	{
139	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	283	s_epipe_signal (&respipe);
141	}	284	}
142		285
143	static void done_poll (void)	286	static void
		287	done_poll (void)
144	{	288	{
145	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
146	char buf [4];	290	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	291	}
150		292
151	/* must be called at most once */	293	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	294	static SV *
		295	req_sv (aio_req req, HV *stash)
153	{	296	{
154	if (!req->self)	297	if (!req->self)
155	{	298	{
156	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	301	}
159		302
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	304	}
162		305
163	static aio_req SvAIO_REQ (SV *sv)	306	static SV *
		307	newSVaio_wd (aio_wd wd)
		308	{
		309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		310	}
		311
		312	static aio_req
		313	SvAIO_REQ (SV *sv)
164	{	314	{
165	MAGIC *mg;	315	MAGIC *mg;
166		316
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	317	if (!SvROK (sv)
		318	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		319	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		320	&& SvSTASH (SvRV (sv)) != aio_req_stash
		321	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	322	croak ("object of class IO::AIO::REQ expected");
169		323
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		325
172	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	327	}
174		328
		329	static aio_wd
		330	SvAIO_WD (SV *sv)
		331	{
		332	if (!SvROK (sv)
		333	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		336
		337	return (aio_wd)(long)SvIVX (SvRV (sv));
		338	}
		339
		340	static void
175	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
176	{	342	{
177	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
178	{	344	{
179	dSP;	345	dSP;
180		346
181	ENTER;	347	ENTER;
182	SAVETMPS;	348	SAVETMPS;
183	PUSHMARK (SP);	349	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	350	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	351	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	352	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	353	SPAGAIN;
188	FREETMPS;	354	FREETMPS;
189	LEAVE;	355	LEAVE;
190	}	356	}
191	}	357	}
192		358
		359	static void
193	static void req_submit (eio_req *req)	360	req_submit (eio_req *req)
194	{	361	{
195	eio_submit (req);	362	eio_submit (req);
196		363
197	if (expect_false (on_next_submit))	364	if (expect_false (on_next_submit))
198	{	365	{
…		…
205	PUTBACK;	372	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	373	call_sv (cb, G_DISCARD | G_EVAL);
207	}	374	}
208	}	375	}
209		376
		377	static int
210	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
211	{	379	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
216		382
217	if (!EIO_CANCELLED (req) && req->callback)	383	if (!EIO_CANCELLED (req) && req->callback)
218	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
219	ENTER;	389	ENTER;
220	SAVETMPS;	390	SAVETMPS;
221	PUSHMARK (SP);	391	PUSHMARK (SP);
222	EXTEND (SP, 1);	392	EXTEND (SP, 1);
223		393
		394	/* do not recreate the result IV from scratch each time */
		395	if (expect_true (sv_result_cache))
		396	{
		397	sv_result = sv_result_cache; sv_result_cache = 0;
		398	SvIV_set (sv_result, req->result);
		399	SvIOK_only (sv_result);
		400	}
		401	else
		402	{
		403	sv_result = newSViv (req->result);
		404	SvREADONLY_on (sv_result);
		405	}
		406
224	switch (req->type)	407	switch (req->type)
225	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
226	case EIO_READDIR:	413	case EIO_READDIR:
227	{	414	{
228	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
229		416
230	if (req->result >= 0)	417	if (req->result >= 0)
231	{	418	{
232	int i;	419	int i;
233	char *buf = req->ptr2;	420	char *names = (char *)req->ptr2;
		421	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	422	AV *av = newAV ();
235		423
236	av_extend (av, req->result - 1);	424	av_extend (av, req->result - 1);
237		425
238	for (i = 0; i < req->result; ++i)	426	for (i = 0; i < req->result; ++i)
239	{	427	{
240	SV *sv = newSVpv (buf, 0);	428	if (req->int1 & EIO_READDIR_DENTS)
		429	{
		430	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		431
		432	if (req->int1 & EIO_READDIR_CUSTOM2)
		433	{
		434	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		435	AV *avent = newAV ();
		436
		437	av_extend (avent, 2);
		438
		439	if (!sv_type [ent->type])
		440	{
		441	sv_type [ent->type] = newSViv (ent->type);
		442	SvREADONLY_on (sv_type [ent->type]);
		443	}
		444
		445	av_store (avent, 0, namesv);
		446	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		447	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		448
		449	av_store (av, i, newRV_noinc ((SV *)avent));
		450	}
		451	else
242	av_store (av, i, sv);	452	av_store (av, i, namesv);
		453
		454	++ent;
		455	}
		456	else
		457	{
		458	SV *name = newSVpv (names, 0);
		459	av_store (av, i, name);
243	buf += SvCUR (sv) + 1;	460	names += SvCUR (name) + 1;
		461	}
244	}	462	}
245		463
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	464	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	465	}
248		466
249	PUSHs (rv);	467	PUSHs (rv);
		468
		469	if (req->int1 & EIO_READDIR_CUSTOM1)
		470	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250	}	471	}
251	break;	472	break;
252		473
253	case EIO_OPEN:	474	case EIO_OPEN:
254	{	475	{
…		…
260	GV *gv = (GV *)sv_newmortal ();	481	GV *gv = (GV *)sv_newmortal ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	482	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
262	char sym [64];	483	char sym [64];
263	int symlen;	484	int symlen;
264		485
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	486	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
266	gv_init (gv, stash, sym, symlen, 0);	487	gv_init (gv, aio_stash, sym, symlen, 0);
267		488
268	symlen = snprintf (	489	symlen = snprintf (
269	sym,	490	sym,
270	sizeof (sym),	491	sizeof (sym),
271	"%s&=%d",	492	"%s&=%d",
272	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273	req->result	494	(int)req->result
274	);	495	);
275		496
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	497	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
277	fh = (SV *)gv;	498	fh = (SV *)gv;
278	}	499	}
279		500
280	PUSHs (fh);	501	PUSHs (fh);
281	}	502	}
		503	break;
		504
		505	case EIO_STATVFS:
		506	case EIO_FSTATVFS:
		507	{
		508	SV *rv = &PL_sv_undef;
		509
		510	#ifndef _WIN32
		511	if (req->result >= 0)
		512	{
		513	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		514	HV *hv = newHV ();
		515	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		516	* chooses to make it a struct.
		517	*/
		518	unsigned long fsid = 0;
		519	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		520
		521	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		522
		523	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		524	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		525	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		526	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		527	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		528	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		529	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		530	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		531	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		532	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		533	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		534	}
		535	#endif
		536
		537	PUSHs (rv);
		538	}
		539
282	break;	540	break;
283		541
284	case EIO_GROUP:	542	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	543	req->int1 = 2; /* mark group as finished */
286		544
…		…
298	case EIO_NOP:	556	case EIO_NOP:
299	case EIO_BUSY:	557	case EIO_BUSY:
300	break;	558	break;
301		559
302	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
303	if (req->result > 0)	562	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	563	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	564	break;
306		565
307	case EIO_STAT:	566	case EIO_STAT:
308	case EIO_LSTAT:	567	case EIO_LSTAT:
309	case EIO_FSTAT:	568	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
311	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
314	break;	576	break;
315		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		580	break;
		581
316	case EIO_READ:	582	case EIO_READ:
		583	{
317	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	584	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
318	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
319	PUSHs (sv_2mortal (newSViv (req->result)));	586	SvPOK_only (req->sv2);
		587	SvSETMAGIC (req->sv2);
		588	PUSHs (sv_result);
		589	}
320	break;	590	break;
321		591
322	case EIO_DUP2:	592	case EIO_CUSTOM:
		593	if (req->feed == fiemap)
		594	{
		595	#if HAVE_FIEMAP
		596	if (!req->result)
		597	{
		598	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		599
		600	if (fiemap->fm_extent_count)
		601	{
		602	AV *av = newAV ();
		603	int i;
		604
		605	while (fiemap->fm_mapped_extents)
		606	{
		607	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		608	AV *ext_av = newAV ();
		609
		610	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		611	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		612	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		613	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		614
		615	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		616	}
		617
		618	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		619	}
		620	else
		621	{
		622	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		623	PUSHs (sv_result);
		624	}
		625	}
		626	#endif
		627	}
		628	else
		629	PUSHs (sv_result);
		630	break;
		631
		632	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
323	if (req->result > 0)	633	if (req->result > 0)
324	req->result = 0;	634	SvIV_set (sv_result, 0);
325	/* FALLTHROUGH */	635	/* FALLTHROUGH */
326		636
327	default:	637	default:
328	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
329	break;	639	break;
330	}	640	}
331		641
332	errno = req->errorno;	642	errno = req->errorno;
333		643
334	PUTBACK;	644	PUTBACK;
335	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336	SPAGAIN;	646	SPAGAIN;
337		647
		648	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		649	SvREFCNT_dec (sv_result);
		650	else
		651	sv_result_cache = sv_result;
		652
338	FREETMPS;	653	FREETMPS;
339	LEAVE;	654	LEAVE;
340		655
341	PUTBACK;	656	PUTBACK;
342	}	657	}
343		658
344	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
345	}	660	}
346		661
		662	static void
347	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
348	{	664	{
349	if (req->self)	665	if (req->self)
350	{	666	{
351	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
352	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
353	}	669	}
354		670
355	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
356	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
357	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
358		676
359	Safefree (req);	677	free (req);
360	}	678	}
361		679
		680	static void
362	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
363	{	682	{
364	aio_req sub;
365
366	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
367	return;	684	return;
368		685
369	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
370	grp->sv2 = 0;	687	grp->sv2 = 0;
371		688
372	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
373	}	690	}
374		691
375	#ifdef USE_SOCKETS_AS_HANDLES	692	static void ecb_cold
376	# define TO_SOCKET(x) (win32_get_osfhandle (x))	693	create_respipe (void)
377	#else	694	{
378	# define TO_SOCKET(x) (x)	695	if (s_epipe_renew (&respipe))
379	#endif	696	croak ("IO::AIO: unable to initialize result pipe");
		697	}
380		698
381	static void	699	static void
382	create_respipe (void)	700	poll_wait (void)
383	{	701	{
384	int old_readfd = respipe [0];
385
386	if (respipe [1] >= 0)
387	respipe_close (TO_SOCKET (respipe [1]));
388
389	#ifdef _WIN32
390	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
391	#else
392	if (pipe (respipe))
393	#endif
394	croak ("unable to initialize result pipe");
395
396	if (old_readfd >= 0)
397	{
398	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
399	croak ("unable to initialize result pipe(2)");
400
401	respipe_close (respipe [0]);
402	respipe [0] = old_readfd;
403	}
404
405	#ifdef _WIN32
406	int arg = 1;
407	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
408	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
409	#else
410	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
411	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
412	#endif
413	croak ("unable to initialize result pipe(3)");
414
415	respipe_osf [0] = TO_SOCKET (respipe [0]);
416	respipe_osf [1] = TO_SOCKET (respipe [1]);
417	}
418
419	static void poll_wait (void)
420	{
421	fd_set rfd;
422
423	while (eio_nreqs ())	702	while (eio_nreqs ())
424	{	703	{
425	int size;	704	int size;
426		705
427	X_LOCK (reslock);	706	X_LOCK (reslock);
…		…
431	if (size)	710	if (size)
432	return;	711	return;
433		712
434	etp_maybe_start_thread ();	713	etp_maybe_start_thread ();
435		714
436	FD_ZERO (&rfd);	715	s_epipe_wait (&respipe);
437	FD_SET (respipe [0], &rfd);
438
439	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440	}	716	}
441	}	717	}
442		718
443	static int poll_cb (void)	719	static int
		720	poll_cb (void)
444	{	721	{
445	for (;;)	722	for (;;)
446	{	723	{
447	int res = eio_poll ();	724	int res = eio_poll ();
448		725
…		…
454		731
455	poll_wait ();	732	poll_wait ();
456	}	733	}
457	}	734	}
458		735
459	static void atfork_child (void)	736	static void ecb_cold
		737	reinit (void)
460	{	738	{
461	create_respipe ();	739	create_respipe ();
		740
		741	if (eio_init (want_poll, done_poll) < 0)
		742	croak ("IO::AIO: unable to initialise eio library");
462	}	743	}
		744
		745	/*****************************************************************************/
		746
		747	#if !_POSIX_MAPPED_FILES
		748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		749	# define munmap(addr,length) EIO_ENOSYS ()
		750	#endif
		751
		752	#if !_POSIX_MEMORY_PROTECTION
		753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		754	# define PROT_NONE 0
		755	# define PROT_WRITE 0
		756	# define MAP_PRIVATE 0
		757	# define MAP_SHARED 0
		758	# define MAP_FIXED 0
		759	#endif
		760
		761	#define MMAP_MAGIC PERL_MAGIC_ext
		762
		763	static int ecb_cold
		764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		765	{
		766	int old_errno = errno;
		767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		768	errno = old_errno;
		769
		770	mg->mg_obj = 0; /* just in case */
		771
		772	SvREADONLY_off (sv);
		773
		774	if (SvPVX (sv) != mg->mg_ptr)
		775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		776
		777	SvCUR_set (sv, 0);
		778	SvPVX (sv) = 0;
		779	SvOK_off (sv);
		780
		781	return 0;
		782	}
		783
		784	static MGVTBL mmap_vtbl = {
		785	0, 0, 0, 0, mmap_free
		786	};
		787
		788	/*****************************************************************************/
463		789
464	static SV *	790	static SV *
465	get_cb (SV *cb_sv)	791	get_cb (SV *cb_sv)
466	{	792	{
467	HV *st;	793	SvGETMAGIC (cb_sv);
468	GV *gvp;	794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		795	}
		796
		797	static aio_req ecb_noinline
		798	dreq (SV *callback)
		799	{
469	CV *cv;	800	SV *cb_cv;
		801	aio_req req;
		802	int req_pri = next_pri;
		803	next_pri = EIO_PRI_DEFAULT;
470		804
471	if (!SvOK (cb_sv))	805	cb_cv = get_cb (callback);
		806
		807	req = calloc (sizeof (*req), 1);
		808	if (!req)
		809	croak ("out of memory during eio_req allocation");
		810
		811	req->callback = SvREFCNT_inc (cb_cv);
		812	req->pri = req_pri;
		813
472	return 0;	814	return req;
473
474	cv = sv_2cv (cb_sv, &st, &gvp, 0);
475
476	if (!cv)
477	croak ("IO::AIO callback must be undef or a CODE reference");
478
479	return (SV *)cv;
480	}	815	}
481		816
482	#define dREQ \	817	#define dREQ \
483	SV *cb_cv; \	818	aio_req req = dreq (callback); \
484	aio_req req; \
485	int req_pri = next_pri; \
486	next_pri = EIO_PRI_DEFAULT; \
487	\
488	cb_cv = get_cb (callback); \
489	\
490	Newz (0, req, 1, eio_req); \
491	if (!req) \
492	croak ("out of memory during eio_req allocation"); \
493	\
494	req->callback = SvREFCNT_inc (cb_cv); \
495	req->pri = req_pri
496		819
497	#define REQ_SEND \	820	#define REQ_SEND \
498	PUTBACK; \	821	PUTBACK; \
499	req_submit (req); \	822	req_submit (req); \
500	SPAGAIN; \	823	SPAGAIN; \
501	\	824	\
502	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
503	XPUSHs (req_sv (req, AIO_REQ_KLASS));	826	XPUSHs (req_sv (req, aio_req_stash));
504		827
		828	ecb_inline void
		829	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		830	{
		831	if (expect_false (SvROK (path)))
		832	{
		833	SV *rv = SvRV (path);
		834	SV *wdob;
		835
		836	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		837	{
		838	path = AvARRAY (rv)[1];
		839	wdob = AvARRAY (rv)[0];
		840
		841	if (SvOK (wdob))
		842	{
		843	*wd = SvAIO_WD (wdob);
		844	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		845	}
		846	else
		847	*wd = EIO_INVALID_WD;
		848	}
		849	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		850	{
		851	*wd = (aio_wd)(long)SvIVX (rv);
		852	*wdsv = SvREFCNT_inc_NN (rv);
		853	*ptr = ".";
		854	return; /* path set to "." */
		855	}
		856	else
		857	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		858	}
		859
		860	*pathsv = newSVsv (path);
		861	*ptr = SvPVbyte_nolen (*pathsv);
		862	}
		863
		864	static void ecb_noinline
		865	req_set_path1 (aio_req req, SV *path)
		866	{
		867	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		868	}
		869
		870	static void ecb_noinline
		871	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		872	{
		873	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		874
		875	switch (SvTYPE (rv))
		876	{
		877	case SVt_PVIO:
		878	case SVt_PVLV:
		879	case SVt_PVGV:
		880	req->type = type_fh;
		881	req->sv1 = newSVsv (fh_or_path);
		882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		883	break;
		884
		885	default:
		886	req->type = type_path;
		887	req_set_path1 (req, fh_or_path);
		888	break;
		889	}
		890	}
		891
		892	XS(boot_IO__AIO) ecb_cold;
		893
505	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
506		895
507	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
508		897
509	BOOT:	898	BOOT:
510	{	899	{
		900	static const struct {
		901	const char *name;
		902	IV iv;
		903	} *civ, const_iv[] = {
		904	# define const_niv(name, value) { # name, (IV) value },
		905	# define const_iv(name) { # name, (IV) name },
		906	# define const_eio(name) { # name, (IV) EIO_ ## name },
		907
		908	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		909
		910	const_iv (ENOSYS)
		911	const_iv (EXDEV)
		912	const_iv (EBADR)
		913
		914	const_iv (O_RDONLY)
		915	const_iv (O_WRONLY)
		916	const_iv (O_RDWR)
		917	const_iv (O_CREAT)
		918	const_iv (O_TRUNC)
		919	const_iv (O_EXCL)
		920	const_iv (O_APPEND)
		921
		922	const_iv (O_ASYNC)
		923	const_iv (O_DIRECT)
		924	const_iv (O_NOATIME)
		925
		926	const_iv (O_CLOEXEC)
		927	const_iv (O_NOCTTY)
		928	const_iv (O_NOFOLLOW)
		929	const_iv (O_NONBLOCK)
		930	const_iv (O_EXEC)
		931	const_iv (O_SEARCH)
		932	const_iv (O_DIRECTORY)
		933	const_iv (O_DSYNC)
		934	const_iv (O_RSYNC)
		935	const_iv (O_SYNC)
		936	const_iv (O_TTY_INIT)
		937
		938	const_iv (S_IFIFO)
		939	const_iv (S_IFCHR)
		940	const_iv (S_IFBLK)
		941	const_iv (S_IFLNK)
		942	const_iv (S_IFREG)
		943	const_iv (S_IFDIR)
		944	const_iv (S_IFWHT)
		945	const_iv (S_IFSOCK)
		946	const_iv (S_IFMT)
		947
		948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		954
		955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		960
		961	const_iv (ST_RDONLY)
		962	const_iv (ST_NOSUID)
		963	const_iv (ST_NODEV)
		964	const_iv (ST_NOEXEC)
		965	const_iv (ST_SYNCHRONOUS)
		966	const_iv (ST_MANDLOCK)
		967	const_iv (ST_WRITE)
		968	const_iv (ST_APPEND)
		969	const_iv (ST_IMMUTABLE)
		970	const_iv (ST_NOATIME)
		971	const_iv (ST_NODIRATIME)
		972	const_iv (ST_RELATIME)
		973
		974	const_iv (PROT_NONE)
		975	const_iv (PROT_EXEC)
		976	const_iv (PROT_READ)
		977	const_iv (PROT_WRITE)
		978
		979	/*const_iv (MAP_FIXED)*/
		980	const_iv (MAP_PRIVATE)
		981	const_iv (MAP_SHARED)
		982	const_iv (MAP_ANONYMOUS)
		983
		984	/* linuxish */
		985	const_iv (MAP_HUGETLB)
		986	const_iv (MAP_LOCKED)
		987	const_iv (MAP_NORESERVE)
		988	const_iv (MAP_POPULATE)
		989	const_iv (MAP_NONBLOCK)
		990
		991	const_iv (FIEMAP_FLAG_SYNC)
		992	const_iv (FIEMAP_FLAG_XATTR)
		993	const_iv (FIEMAP_FLAGS_COMPAT)
		994	const_iv (FIEMAP_EXTENT_LAST)
		995	const_iv (FIEMAP_EXTENT_UNKNOWN)
		996	const_iv (FIEMAP_EXTENT_DELALLOC)
		997	const_iv (FIEMAP_EXTENT_ENCODED)
		998	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		999	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1000	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1001	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1002	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1003	const_iv (FIEMAP_EXTENT_MERGED)
		1004	const_iv (FIEMAP_EXTENT_SHARED)
		1005
		1006	const_iv (SPLICE_F_MOVE)
		1007	const_iv (SPLICE_F_NONBLOCK)
		1008	const_iv (SPLICE_F_MORE)
		1009	const_iv (SPLICE_F_GIFT)
		1010
		1011	const_iv (SEEK_DATA)
		1012	const_iv (SEEK_HOLE)
		1013
		1014	/* libeio constants */
		1015	const_eio (SEEK_SET)
		1016	const_eio (SEEK_CUR)
		1017	const_eio (SEEK_END)
		1018
		1019	const_eio (MCL_FUTURE)
		1020	const_eio (MCL_CURRENT)
		1021
		1022	const_eio (MS_ASYNC)
		1023	const_eio (MS_INVALIDATE)
		1024	const_eio (MS_SYNC)
		1025
		1026	const_eio (MT_MODIFY)
		1027
		1028	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1029	const_eio (SYNC_FILE_RANGE_WRITE)
		1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1031
		1032	const_eio (FALLOC_FL_KEEP_SIZE)
		1033	const_eio (FALLOC_FL_PUNCH_HOLE)
		1034
		1035	const_eio (READDIR_DENTS)
		1036	const_eio (READDIR_DIRS_FIRST)
		1037	const_eio (READDIR_STAT_ORDER)
		1038	const_eio (READDIR_FOUND_UNKNOWN)
		1039
		1040	const_eio (DT_UNKNOWN)
		1041	const_eio (DT_FIFO)
		1042	const_eio (DT_CHR)
		1043	const_eio (DT_DIR)
		1044	const_eio (DT_BLK)
		1045	const_eio (DT_REG)
		1046	const_eio (DT_LNK)
		1047	const_eio (DT_SOCK)
		1048	const_eio (DT_WHT)
		1049	};
		1050
511	stash = gv_stashpv ("IO::AIO", 1);	1051	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1052	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1053	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1054	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
512		1055
513	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
514	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
515	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
516	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
517	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
518	#ifndef _WIN32
519	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
520	#endif
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));
523	newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));
524	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
525		1058
526	create_respipe ();	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
527		1060
528	if (eio_init (want_poll, done_poll) < 0)	1061	reinit ();
529	croak ("IO::AIO: unable to initialise eio library");
530
531	/* atfork child called in fifo order, so before eio's handler */
532	X_THREAD_ATFORK (0, 0, atfork_child);
533	}	1062	}
534		1063
535	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
536	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
537	PROTOTYPE: $	1070	PROTOTYPE: $
538	CODE:	1071	CODE:
539	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
540		1073
541	void	1074	void
…		…
543	PROTOTYPE: $	1076	PROTOTYPE: $
544	CODE:	1077	CODE:
545	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
546		1079
547	void	1080	void
548	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
549	PROTOTYPE: $	1082	PROTOTYPE: $
550	CODE:	1083	CODE:
551	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
552		1085
553	void	1086	void
554	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
555	PROTOTYPE: $	1088	PROTOTYPE: $
556	CODE:	1089	CODE:
557	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
558		1091
559	void	1092	void
560	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
561	PROTOTYPE: $	1094	PROTOTYPE: $
562	CODE:	1095	CODE:
563	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
564		1097
565	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
566	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
567	PROTOTYPE: $	1106	PROTOTYPE: $
568	CODE:	1107	CODE:
569	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
570		1109
571	void	1110	void
		1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1112	PPCODE:
		1113	{
		1114	dREQ;
		1115
		1116	req->type = EIO_WD_OPEN;
		1117	req_set_path1 (req, pathname);
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
572	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $$$;$
574	PPCODE:	1124	PPCODE:
575	{	1125	{
576	dREQ;	1126	dREQ;
577		1127
578	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
579	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
580	req->ptr1 = SvPVbyte_nolen (req->sv1);
581	req->int1 = flags;	1130	req->int1 = flags;
582	req->int2 = mode;	1131	req->int2 = mode;
583		1132
584	REQ_SEND;	1133	REQ_SEND;
585	}	1134	}
586		1135
587	void	1136	void
588	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
589	PROTOTYPE: $;$
590	ALIAS:	1138	ALIAS:
591	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
592	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
593	PPCODE:	1142	PPCODE:
594	{	1143	{
		1144	int fd = s_fileno_croak (fh, 0);
595	dREQ;	1145	dREQ;
596		1146
597	req->type = ix;	1147	req->type = ix;
598	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
599	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1149	req->int1 = fd;
600		1150
601	REQ_SEND (req);	1151	REQ_SEND;
602	}	1152	}
603		1153
604	void	1154	void
605	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
606	PROTOTYPE: $$$$;$
607	PPCODE:	1156	PPCODE:
608	{	1157	{
		1158	int fd = s_fileno_croak (fh, 0);
609	dREQ;	1159	dREQ;
610		1160
611	req->type = EIO_SYNC_FILE_RANGE;	1161	req->type = EIO_SYNC_FILE_RANGE;
612	req->sv1 = newSVsv (fh);	1162	req->sv1 = newSVsv (fh);
613	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1163	req->int1 = fd;
614	req->offs = SvVAL64 (offset);	1164	req->offs = offset;
615	req->size = SvVAL64 (nbytes);	1165	req->size = nbytes;
616	req->int2 = flags;	1166	req->int2 = flags;
617		1167
618	REQ_SEND (req);	1168	REQ_SEND;
		1169	}
		1170
		1171	void
		1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1173	PPCODE:
		1174	{
		1175	int fd = s_fileno_croak (fh, 0);
		1176	dREQ;
		1177
		1178	req->type = EIO_FALLOCATE;
		1179	req->sv1 = newSVsv (fh);
		1180	req->int1 = fd;
		1181	req->int2 = mode;
		1182	req->offs = offset;
		1183	req->size = len;
		1184
		1185	REQ_SEND;
619	}	1186	}
620		1187
621	void	1188	void
622	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
623	PROTOTYPE: $;$
624	PPCODE:	1190	PPCODE:
625	{	1191	{
626	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1193	int fd = s_fileno_croak (fh, 0);
627	dREQ;	1194	dREQ;
628		1195
629	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
630	{	1197	{
631	int pipefd [2];	1198	int pipefd [2];
632		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
633	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
634	|| close (pipefd [1]) < 0
635	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1206	#endif
		1207	|| close (pipefd [1]) < 0
		1208	)
636	abort (); /*D*/	1209	abort (); /*D*/
637		1210
638	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
639	}	1212	}
640		1213
641	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
642	req->int1 = close_pipe;	1215	req->int1 = close_fd;
643	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
644	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1217	req->int2 = fd;
645		1218
646	REQ_SEND (req);	1219	REQ_SEND;
		1220	}
		1221
		1222	void
		1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1224	PPCODE:
		1225	{
		1226	int fd = s_fileno_croak (fh, 0);
		1227	dREQ;
		1228
		1229	req->type = EIO_SEEK;
		1230	req->sv1 = newSVsv (fh);
		1231	req->int1 = fd;
		1232	req->offs = SvVAL64 (offset);
		1233	req->int2 = whence;
		1234
		1235	REQ_SEND;
647	}	1236	}
648		1237
649	void	1238	void
650	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
651	ALIAS:	1240	ALIAS:
652	aio_read = EIO_READ	1241	aio_read = EIO_READ
653	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
654	PROTOTYPE: $$$$$;$
655	PPCODE:	1243	PPCODE:
656	{	1244	{
657	STRLEN svlen;	1245	STRLEN svlen;
		1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
658	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
659	UV len = SvUV (length);	1248	UV len = SvUV (length);
660
661	SvUPGRADE (data, SVt_PV);
662	SvPOK_on (data);
663		1249
664	if (dataoffset < 0)	1250	if (dataoffset < 0)
665	dataoffset += svlen;	1251	dataoffset += svlen;
666		1252
667	if (dataoffset < 0 || dataoffset > svlen)	1253	if (dataoffset < 0 || dataoffset > svlen)
…		…
673	if (!SvOK (length) || len + dataoffset > svlen)	1259	if (!SvOK (length) || len + dataoffset > svlen)
674	len = svlen - dataoffset;	1260	len = svlen - dataoffset;
675	}	1261	}
676	else	1262	else
677	{	1263	{
678	/* read: grow scalar as necessary */	1264	/* read: check type and grow scalar as necessary */
		1265	SvUPGRADE (data, SVt_PV);
		1266	if (SvLEN (data) >= SvCUR (data))
679	svptr = SvGROW (data, len + dataoffset + 1);	1267	svptr = SvGROW (data, len + dataoffset + 1);
		1268	else if (SvCUR (data) < len + dataoffset)
		1269	croak ("length + dataoffset outside of scalar, and cannot grow");
680	}	1270	}
681
682	if (len < 0)
683	croak ("length must not be negative");
684		1271
685	{	1272	{
686	dREQ;	1273	dREQ;
687		1274
688	req->type = ix;	1275	req->type = ix;
689	req->sv1 = newSVsv (fh);	1276	req->sv1 = newSVsv (fh);
690	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1277	req->int1 = fd;
691	: IoOFP (sv_2io (fh)));
692	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1278	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
693	req->size = len;	1279	req->size = len;
694	req->sv2 = SvREFCNT_inc (data);	1280	req->sv2 = SvREFCNT_inc (data);
695	req->ptr2 = (char *)svptr + dataoffset;	1281	req->ptr2 = (char *)svptr + dataoffset;
696	req->stroffset = dataoffset;	1282	req->stroffset = dataoffset;
…		…
704	REQ_SEND;	1290	REQ_SEND;
705	}	1291	}
706	}	1292	}
707		1293
708	void	1294	void
709	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
710	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
711	PPCODE:	1299	PPCODE:
712	{	1300	{
713	SV *data;
714	dREQ;	1301	dREQ;
715		1302
716	req->type = EIO_READLINK;	1303	req->type = ix;
717	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
718	req->ptr1 = SvPVbyte_nolen (req->sv1);
719		1305
720	REQ_SEND;	1306	REQ_SEND;
721	}	1307	}
722		1308
723	void	1309	void
724	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
725	PROTOTYPE: $$$$;$
726	PPCODE:	1311	PPCODE:
727	{	1312	{
		1313	int ifd = s_fileno_croak (in_fh , 0);
		1314	int ofd = s_fileno_croak (out_fh, 1);
728	dREQ;	1315	dREQ;
729		1316
730	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
731	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
732	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1319	req->int1 = ofd;
733	req->sv2 = newSVsv (in_fh);	1320	req->sv2 = newSVsv (in_fh);
734	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1321	req->int2 = ifd;
735	req->offs = SvVAL64 (in_offset);	1322	req->offs = in_offset;
736	req->size = length;	1323	req->size = length;
737		1324
738	REQ_SEND;	1325	REQ_SEND;
739	}	1326	}
740		1327
741	void	1328	void
742	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
743	PROTOTYPE: $$$;$
744	PPCODE:	1330	PPCODE:
745	{	1331	{
		1332	int fd = s_fileno_croak (fh, 0);
746	dREQ;	1333	dREQ;
747		1334
748	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
749	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
750	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1337	req->int1 = fd;
751	req->offs = SvVAL64 (offset);	1338	req->offs = offset;
752	req->size = length;	1339	req->size = length;
753		1340
754	REQ_SEND;	1341	REQ_SEND;
755	}	1342	}
756		1343
757	void	1344	void
758	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
759	ALIAS:	1346	ALIAS:
760	aio_stat = EIO_STAT	1347	aio_stat = EIO_STAT
761	aio_lstat = EIO_LSTAT	1348	aio_lstat = EIO_LSTAT
		1349	aio_statvfs = EIO_STATVFS
762	PPCODE:	1350	PPCODE:
763	{	1351	{
764	dREQ;	1352	dREQ;
765		1353
766	req->sv1 = newSVsv (fh_or_path);	1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
767
768	if (SvPOK (req->sv1))
769	{
770	req->type = ix;
771	req->ptr1 = SvPVbyte_nolen (req->sv1);
772	}
773	else
774	{
775	req->type = EIO_FSTAT;
776	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
777	}
778		1355
779	REQ_SEND;	1356	REQ_SEND;
780	}	1357	}
		1358
		1359	UV
		1360	major (UV dev)
		1361	ALIAS:
		1362	minor = 1
		1363	CODE:
		1364	RETVAL = ix ? major (dev) : minor (dev);
		1365	OUTPUT:
		1366	RETVAL
		1367
		1368	UV
		1369	makedev (UV maj, UV min)
		1370	CODE:
		1371	RETVAL = makedev (maj, min);
		1372	OUTPUT:
		1373	RETVAL
781		1374
782	void	1375	void
783	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
784	PPCODE:	1377	PPCODE:
785	{	1378	{
786	dREQ;	1379	dREQ;
787		1380
788	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
789	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
790	req->sv1 = newSVsv (fh_or_path);	1383	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
791
792	if (SvPOK (req->sv1))
793	{
794	req->type = EIO_UTIME;
795	req->ptr1 = SvPVbyte_nolen (req->sv1);
796	}
797	else
798	{
799	req->type = EIO_FUTIME;
800	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
801	}
802		1384
803	REQ_SEND;	1385	REQ_SEND;
804	}	1386	}
805		1387
806	void	1388	void
807	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
808	PPCODE:	1390	PPCODE:
809	{	1391	{
810	dREQ;	1392	dREQ;
811		1393
812	req->sv1 = newSVsv (fh_or_path);
813	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
814		1395	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
815	if (SvPOK (req->sv1))
816	{
817	req->type = EIO_TRUNCATE;
818	req->ptr1 = SvPVbyte_nolen (req->sv1);
819	}
820	else
821	{
822	req->type = EIO_FTRUNCATE;
823	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
824	}
825		1396
826	REQ_SEND;	1397	REQ_SEND;
827	}	1398	}
828		1399
829	void	1400	void
830	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1401	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
831	ALIAS:
832	aio_chmod = EIO_CHMOD
833	aio_mkdir = EIO_MKDIR
834	PPCODE:	1402	PPCODE:
835	{	1403	{
836	dREQ;	1404	dREQ;
837		1405
838	req->int2 = mode;	1406	req->int2 = mode;
839	req->sv1 = newSVsv (fh_or_path);	1407	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
840
841	if (SvPOK (req->sv1))
842	{
843	req->type = ix;
844	req->ptr1 = SvPVbyte_nolen (req->sv1);
845	}
846	else
847	{
848	req->type = EIO_FCHMOD;
849	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850	}
851		1408
852	REQ_SEND;	1409	REQ_SEND;
853	}	1410	}
854		1411
855	void	1412	void
…		…
858	{	1415	{
859	dREQ;	1416	dREQ;
860		1417
861	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
862	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
863	req->sv1 = newSVsv (fh_or_path);	1420	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
864		1421
865	if (SvPOK (req->sv1))	1422	REQ_SEND;
866	{	1423	}
		1424
		1425	void
		1426	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1427	PPCODE:
		1428	{
		1429	dREQ;
		1430
		1431	req->type = EIO_READDIR;
		1432	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1433
		1434	if (flags & EIO_READDIR_DENTS)
		1435	req->int1 |= EIO_READDIR_CUSTOM2;
		1436
		1437	req_set_path1 (req, pathname);
		1438
		1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
867	req->type = EIO_CHOWN;	1448	req->type = EIO_MKDIR;
868	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req->int2 = mode;
869	}	1450	req_set_path1 (req, pathname);
870	else
871	{
872	req->type = EIO_FCHOWN;
873	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
874	}
875		1451
876	REQ_SEND;	1452	REQ_SEND;
877	}	1453	}
878		1454
879	void	1455	void
…		…
885	PPCODE:	1461	PPCODE:
886	{	1462	{
887	dREQ;	1463	dREQ;
888		1464
889	req->type = ix;	1465	req->type = ix;
890	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
891	req->ptr1 = SvPVbyte_nolen (req->sv1);
892		1467
893	REQ_SEND;	1468	REQ_SEND;
894	}	1469	}
895		1470
896	void	1471	void
…		…
899	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
900	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
901	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
902	PPCODE:	1477	PPCODE:
903	{	1478	{
		1479	eio_wd wd2 = 0;
904	dREQ;	1480	dREQ;
905		1481
906	req->type = ix;	1482	req->type = ix;
907	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
908	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
909	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
910	req->ptr2 = SvPVbyte_nolen (req->sv2);
911		1486
912	REQ_SEND;	1487	REQ_SEND;
913	}	1488	}
914		1489
915	void	1490	void
…		…
917	PPCODE:	1492	PPCODE:
918	{	1493	{
919	dREQ;	1494	dREQ;
920		1495
921	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
922	req->sv1 = newSVsv (pathname);
923	req->ptr1 = SvPVbyte_nolen (req->sv1);
924	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
925	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
926		1500
927	REQ_SEND;	1501	REQ_SEND;
928	}	1502	}
929		1503
930	void	1504	void
		1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1506	ALIAS:
		1507	aio_mtouch = EIO_MTOUCH
		1508	aio_msync = EIO_MSYNC
		1509	PPCODE:
		1510	{
		1511	STRLEN svlen;
		1512	char *svptr = SvPVbyte (data, svlen);
		1513	UV len = SvUV (length);
		1514
		1515	if (offset < 0)
		1516	offset += svlen;
		1517
		1518	if (offset < 0 || offset > svlen)
		1519	croak ("offset outside of scalar");
		1520
		1521	if (!SvOK (length) || len + offset > svlen)
		1522	len = svlen - offset;
		1523
		1524	{
		1525	dREQ;
		1526
		1527	req->type = ix;
		1528	req->sv2 = SvREFCNT_inc (data);
		1529	req->ptr2 = (char *)svptr + offset;
		1530	req->size = len;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535	}
		1536
		1537	void
		1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1539	PPCODE:
		1540	{
		1541	STRLEN svlen;
		1542	char *svptr = SvPVbyte (data, svlen);
		1543	UV len = SvUV (length);
		1544
		1545	if (offset < 0)
		1546	offset += svlen;
		1547
		1548	if (offset < 0 || offset > svlen)
		1549	croak ("offset outside of scalar");
		1550
		1551	if (!SvOK (length) || len + offset > svlen)
		1552	len = svlen - offset;
		1553
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MLOCK;
		1558	req->sv2 = SvREFCNT_inc (data);
		1559	req->ptr2 = (char *)svptr + offset;
		1560	req->size = len;
		1561
		1562	REQ_SEND;
		1563	}
		1564	}
		1565
		1566	void
		1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1568	PPCODE:
		1569	{
		1570	dREQ;
		1571
		1572	req->type = EIO_MLOCKALL;
		1573	req->int1 = flags;
		1574
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1580	PPCODE:
		1581	{
		1582	int fd = s_fileno_croak (fh, 0);
		1583	dREQ;
		1584
		1585	req->type = EIO_CUSTOM;
		1586	req->sv1 = newSVsv (fh);
		1587	req->int1 = fd;
		1588
		1589	req->feed = fiemap;
		1590	#if HAVE_FIEMAP
		1591	/* keep our fingers crossed that the next two types are 64 bit */
		1592	req->offs = start;
		1593	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1594	req->int2 = flags;
		1595	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1596	#endif
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
931	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
932	PPCODE:	1603	PPCODE:
933	{	1604	{
934	dREQ;	1605	dREQ;
935		1606
…		…
939	REQ_SEND;	1610	REQ_SEND;
940	}	1611	}
941		1612
942	void	1613	void
943	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
944	PROTOTYPE: ;$
945	PPCODE:	1615	PPCODE:
946	{	1616	{
947	dREQ;	1617	dREQ;
948		1618
949	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
950		1620
		1621	PUTBACK;
951	req_submit (req);	1622	req_submit (req);
		1623	SPAGAIN;
		1624
952	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1625	XPUSHs (req_sv (req, aio_grp_stash));
953	}	1626	}
954		1627
955	void	1628	void
956	aio_nop (SV *callback=&PL_sv_undef)	1629	aio_nop (SV *callback=&PL_sv_undef)
957	ALIAS:	1630	ALIAS:
…		…
966	REQ_SEND;	1639	REQ_SEND;
967	}	1640	}
968		1641
969	int	1642	int
970	aioreq_pri (int pri = 0)	1643	aioreq_pri (int pri = 0)
971	PROTOTYPE: ;$
972	CODE:	1644	CODE:
973	RETVAL = next_pri;	1645	RETVAL = next_pri;
974	if (items > 0)	1646	if (items > 0)
975	{	1647	{
976	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1648	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
988	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1660	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
989	next_pri = nice;	1661	next_pri = nice;
990		1662
991	void	1663	void
992	flush ()	1664	flush ()
993	PROTOTYPE:
994	CODE:	1665	CODE:
995	while (eio_nreqs ())	1666	while (eio_nreqs ())
996	{	1667	{
997	poll_wait ();	1668	poll_wait ();
998	poll_cb ();	1669	poll_cb ();
999	}	1670	}
1000		1671
1001	int	1672	int
1002	poll()	1673	poll ()
1003	PROTOTYPE:
1004	CODE:	1674	CODE:
1005	poll_wait ();	1675	poll_wait ();
1006	RETVAL = poll_cb ();	1676	RETVAL = poll_cb ();
1007	OUTPUT:	1677	OUTPUT:
1008	RETVAL	1678	RETVAL
1009		1679
1010	int	1680	int
1011	poll_fileno()	1681	poll_fileno ()
1012	PROTOTYPE:
1013	CODE:	1682	CODE:
1014	RETVAL = respipe [0];	1683	RETVAL = s_epipe_fd (&respipe);
1015	OUTPUT:	1684	OUTPUT:
1016	RETVAL	1685	RETVAL
1017		1686
1018	int	1687	int
1019	poll_cb(...)	1688	poll_cb (...)
1020	PROTOTYPE:	1689	PROTOTYPE:
1021	CODE:	1690	CODE:
1022	RETVAL = poll_cb ();	1691	RETVAL = poll_cb ();
1023	OUTPUT:	1692	OUTPUT:
1024	RETVAL	1693	RETVAL
1025		1694
1026	void	1695	void
1027	poll_wait()	1696	poll_wait ()
1028	PROTOTYPE:
1029	CODE:	1697	CODE:
1030	poll_wait ();	1698	poll_wait ();
1031		1699
1032	int	1700	int
1033	nreqs()	1701	nreqs ()
1034	PROTOTYPE:
1035	CODE:	1702	CODE:
1036	RETVAL = eio_nreqs ();	1703	RETVAL = eio_nreqs ();
1037	OUTPUT:	1704	OUTPUT:
1038	RETVAL	1705	RETVAL
1039		1706
1040	int	1707	int
1041	nready()	1708	nready ()
1042	PROTOTYPE:
1043	CODE:	1709	CODE:
1044	RETVAL = eio_nready ();	1710	RETVAL = eio_nready ();
1045	OUTPUT:	1711	OUTPUT:
1046	RETVAL	1712	RETVAL
1047		1713
1048	int	1714	int
1049	npending()	1715	npending ()
1050	PROTOTYPE:
1051	CODE:	1716	CODE:
1052	RETVAL = eio_npending ();	1717	RETVAL = eio_npending ();
1053	OUTPUT:	1718	OUTPUT:
1054	RETVAL	1719	RETVAL
1055		1720
1056	int	1721	int
1057	nthreads()	1722	nthreads ()
1058	PROTOTYPE:
1059	CODE:	1723	CODE:
1060	RETVAL = eio_nthreads ();	1724	RETVAL = eio_nthreads ();
1061	OUTPUT:	1725	OUTPUT:
1062	RETVAL	1726	RETVAL
1063		1727
		1728	int
		1729	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1730	CODE:
		1731	RETVAL = posix_fadvise (fh, offset, length, advice);
		1732	OUTPUT:
		1733	RETVAL
		1734
		1735	IV
		1736	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1737	CODE:
		1738	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1739	OUTPUT:
		1740	RETVAL
		1741
		1742	void
		1743	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1744	PPCODE:
		1745	sv_unmagic (scalar, MMAP_MAGIC);
		1746	{
		1747	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1748	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1749	if (addr == (void *)-1)
		1750	XSRETURN_NO;
		1751
		1752	sv_force_normal (scalar);
		1753
		1754	/* we store the length in mg_obj, as namlen is I32 :/ */
		1755	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1756	->mg_obj = (SV *)length;
		1757
		1758	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1759
		1760	if (!(prot & PROT_WRITE))
		1761	SvREADONLY_on (scalar);
		1762
		1763	if (SvLEN (scalar))
		1764	Safefree (SvPVX (scalar));
		1765
		1766	SvPVX (scalar) = (char *)addr;
		1767	SvCUR_set (scalar, length);
		1768	SvLEN_set (scalar, 0);
		1769	SvPOK_only (scalar);
		1770
		1771	XSRETURN_YES;
		1772	}
		1773
		1774	void
		1775	munmap (SV *scalar)
		1776	CODE:
		1777	sv_unmagic (scalar, MMAP_MAGIC);
		1778
		1779	int
		1780	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1781	ALIAS:
		1782	mprotect = 1
		1783	CODE:
		1784	{
		1785	STRLEN svlen;
		1786	void *addr = SvPVbyte (scalar, svlen);
		1787	size_t len = SvUV (length);
		1788
		1789	if (offset < 0)
		1790	offset += svlen;
		1791
		1792	if (offset < 0 || offset > svlen)
		1793	croak ("offset outside of scalar");
		1794
		1795	if (!SvOK (length) || len + offset > svlen)
		1796	len = svlen - offset;
		1797
		1798	addr = (void *)(((intptr_t)addr) + offset);
		1799	eio_page_align (&addr, &len);
		1800
		1801	switch (ix)
		1802	{
		1803	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1804	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1805	}
		1806	}
		1807	OUTPUT:
		1808	RETVAL
		1809
		1810	int
		1811	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1812	CODE:
		1813	{
		1814	STRLEN svlen;
		1815	void *addr = SvPVbyte (scalar, svlen);
		1816	size_t len = SvUV (length);
		1817
		1818	if (offset < 0)
		1819	offset += svlen;
		1820
		1821	if (offset < 0 || offset > svlen)
		1822	croak ("offset outside of scalar");
		1823
		1824	if (!SvOK (length) || len + offset > svlen)
		1825	len = svlen - offset;
		1826
		1827	addr = (void *)(((intptr_t)addr) + offset);
		1828	eio_page_align (&addr, &len);
		1829	#if _POSIX_MEMLOCK_RANGE
		1830	RETVAL = munlock (addr, len);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	}
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	munlockall ()
		1840	CODE:
		1841	#if _POSIX_MEMLOCK
		1842	munlockall ();
		1843	#else
		1844	RETVAL = EIO_ENOSYS ();
		1845	#endif
		1846	OUTPUT:
		1847	RETVAL
		1848
		1849	int
		1850	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1851	CODE:
		1852	{
		1853	#if HAVE_LINUX_SPLICE
		1854	loff_t off_in_, off_out_;
		1855	RETVAL = splice (
		1856	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1857	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1858	length, flags
		1859	);
		1860	#else
		1861	RETVAL = EIO_ENOSYS ();
		1862	#endif
		1863	}
		1864	OUTPUT:
		1865	RETVAL
		1866
		1867	int
		1868	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1869	CODE:
		1870	#if HAVE_LINUX_SPLICE
		1871	RETVAL = tee (rfh, wfh, length, flags);
		1872	#else
		1873	RETVAL = EIO_ENOSYS ();
		1874	#endif
		1875	OUTPUT:
		1876	RETVAL
		1877
		1878	int
		1879	pipesize (aio_rfd rfh, int new_size = -1)
		1880	PROTOTYPE: $;$
		1881	CODE:
		1882	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1883	if (new_size >= 0)
		1884	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1885	else
		1886	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1887	#else
		1888	errno = ENOSYS;
		1889	RETVAL = -1;
		1890	#endif
		1891	OUTPUT:
		1892	RETVAL
		1893
1064	void _on_next_submit (SV *cb)	1894	void _on_next_submit (SV *cb)
1065	CODE:	1895	CODE:
1066	SvREFCNT_dec (on_next_submit);	1896	SvREFCNT_dec (on_next_submit);
1067	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1897	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1068		1898
1069	PROTOTYPES: DISABLE	1899	PROTOTYPES: DISABLE
1070		1900
		1901	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1902
		1903	BOOT:
		1904	{
		1905	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1906	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1907	}
		1908
		1909	void
		1910	DESTROY (SV *self)
		1911	CODE:
		1912	{
		1913	aio_wd wd = SvAIO_WD (self);
		1914	#if HAVE_AT
		1915	{
		1916	SV *callback = &PL_sv_undef;
		1917	dREQ; /* clobbers next_pri :/ */
		1918	next_pri = req->pri; /* restore next_pri */
		1919	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1920	req->type = EIO_WD_CLOSE;
		1921	req->wd = wd;
		1922	REQ_SEND;
		1923	}
		1924	#else
		1925	eio_wd_close_sync (wd);
		1926	#endif
		1927	}
		1928
1071	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1929	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1072		1930
1073	void	1931	void
1074	cancel (aio_req_ornot req)	1932	cancel (aio_req_ornot req)
1075	CODE:	1933	CODE:
…		…
1082	if (GIMME_V != G_VOID)	1940	if (GIMME_V != G_VOID)
1083	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1941	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1084		1942
1085	if (items > 1)	1943	if (items > 1)
1086	{	1944	{
1087	SV *cb_cv = get_cb (callback);	1945	SV *cb_cv =get_cb (callback);
1088		1946
1089	SvREFCNT_dec (req->callback);	1947	SvREFCNT_dec (req->callback);
1090	req->callback = SvREFCNT_inc (cb_cv);	1948	req->callback = SvREFCNT_inc (cb_cv);
1091	}	1949	}
1092	}	1950	}
…		…
1129	AV *av;	1987	AV *av;
1130		1988
1131	grp->errorno = errno;	1989	grp->errorno = errno;
1132		1990
1133	av = newAV ();	1991	av = newAV ();
		1992	av_extend (av, items - 1);
1134		1993
1135	for (i = 1; i < items; ++i )	1994	for (i = 1; i < items; ++i )
1136	av_push (av, newSVsv (ST (i)));	1995	av_push (av, newSVsv (ST (i)));
1137		1996
1138	SvREFCNT_dec (grp->sv1);	1997	SvREFCNT_dec (grp->sv1);

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