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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.128 by root, Tue Sep 30 14:07:59 2008 UTC vs.
Revision 1.211 by root, Sat Apr 7 00:50:33 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/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
18	/* perl namespace pollution */	32	/* perl namespace pollution */
19	#undef VERSION	33	#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		34
70	/* perl stupidly overrides readdir and maybe others */	35	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	36	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	37	#undef readdir
73	#undef opendir	38	#undef opendir
74	#undef closedir	39	#undef closedir
75		40
		41	#ifdef _WIN32
		42
		43	// perl overrides all those nice libc functions
		44
		45	#undef malloc
		46	#undef free
		47	#undef open
		48	#undef read
		49	#undef write
		50	#undef send
		51	#undef recv
		52	#undef stat
		53	#undef lstat
		54	#undef fstat
		55	#undef truncate
		56	#undef ftruncate
		57	#undef open
		58	#undef link
		59	#undef close
		60	#undef unlink
		61	#undef mkdir
		62	#undef rmdir
		63	#undef rename
		64	#undef lseek
		65	#undef opendir
		66	#undef readdir
		67	#undef closedir
		68	#undef chmod
		69	#undef fchmod
		70	#undef dup
		71	#undef dup2
		72	#undef abort
		73	#undef pipe
		74
		75	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STATI64
77		77
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	78	#else
82	# define SvVAL64 SvNV	79
		80	#include <sys/time.h>
		81	#include <sys/select.h>
		82	#include <unistd.h>
		83	#include <utime.h>
		84	#include <signal.h>
		85
		86	#define EIO_STRUCT_STAT Stat_t
		87
83	#endif	88	#endif
84		89
85	/*****************************************************************************/	90	/*****************************************************************************/
86		91
87	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	98	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	99	#define expect_true(expr) expect ((expr) != 0, 1)
95		100
96	/*****************************************************************************/	101	/*****************************************************************************/
97		102
98	static HV *stash;
99	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
		104	typedef int aio_rfd; /* read file desriptor */
		105	typedef int aio_wfd; /* write file descriptor */
100		106
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		108
104	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
105	SV *callback; \	110	SV *callback; \
106	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
107	STRLEN stroffset; \	113	STRLEN stroffset; \
108	SV *self;	114	SV *self;
109		115
110	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
111		117
		118	#include "libeio/config.h"
112	#include "libeio/eio.h"	119	#include "libeio/eio.h"
113		120
114	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
119	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		130	#endif
		131
		132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		134	#endif
		135
		136	#ifndef MAP_ANONYMOUS
		137	# ifdef MAP_ANON
		138	# define MAP_ANONYMOUS MAP_ANON
		139	# else
		140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		141	# endif
		142	#endif
		143
		144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
		149	#endif
		150	#ifndef major
		151	# define major(dev) ((dev) >> 8)
		152	#endif
		153	#ifndef minor
		154	# define minor(dev) ((dev) & 0xff)
		155	#endif
		156
		157	#ifndef PAGESIZE
		158	# define PAGESIZE sysconf (_SC_PAGESIZE)
		159	#endif
		160
		161	/*****************************************************************************/
		162
		163	static void
		164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	int count = req->int3;
		170
		171	/* heuristic: first try with 64 extents if we don't know how many, */
		172	/* as most files have (hopefully) fewer than this many extents */
		173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		174	if (count < 0)
		175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		176
		177	for (;;)
		178	{
		179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		180	errno = ENOMEM;
		181	if (!fiemap)
		182	return;
		183
		184	req->ptr1 = fiemap;
		185	req->flags |= EIO_FLAG_PTR1_FREE;
		186
		187	fiemap->fm_start = req->offs;
		188	fiemap->fm_length = req->size;
		189	fiemap->fm_flags = req->int2;
		190	fiemap->fm_extent_count = count;
		191
		192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		193	return;
		194
		195	if (req->int3 >= 0)
		196	break; /* when not autosizing we are done */
		197
		198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		199	break; /* autosizing successful, we are done */
		200
		201	fiemap->fm_flags = req->int2;
		202	fiemap->fm_extent_count = 0;
		203
		204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		205	return;
		206
		207	count = fiemap->fm_mapped_extents;
		208
		209	free (fiemap);
		210	}
		211
		212	req->result = 0;
		213
		214	#else
		215	errno = ENOSYS;
		216	#endif
		217	}
		218
		219	/*****************************************************************************/
120		220
121	enum {	221	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
123	};	223	};
124		224
125	#include "libeio/eio.c"
126
127	typedef eio_req *aio_req;	225	typedef eio_req *aio_req;
128	typedef eio_req *aio_req_ornot;	226	typedef eio_req *aio_req_ornot;
		227	typedef eio_wd aio_wd;
129		228
130	static SV *on_next_submit;	229	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	230	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	231	static int max_outstanding;
133		232
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	233	static s_epipe respipe;
135		234
136	static void req_destroy (aio_req req);	235	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	236	static void req_cancel (aio_req req);
138		237
139	static void want_poll (void)	238	static void
		239	want_poll (void)
140	{	240	{
141	/* write a dummy byte to the pipe so fh becomes ready */	241	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	242	s_epipe_signal (&respipe);
143	}	243	}
144		244
145	static void done_poll (void)	245	static void
		246	done_poll (void)
146	{	247	{
147	/* read any signals sent by the worker threads */	248	/* read any signals sent by the worker threads */
148	char buf [4];	249	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	250	}
152		251
153	/* must be called at most once */	252	/* must be called at most once */
154	static SV *req_sv (aio_req req, const char *klass)	253	static SV *
		254	req_sv (aio_req req, HV *stash)
155	{	255	{
156	if (!req->self)	256	if (!req->self)
157	{	257	{
158	req->self = (SV *)newHV ();	258	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	259	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	260	}
161		261
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	262	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	263	}
164		264
165	static aio_req SvAIO_REQ (SV *sv)	265	static SV *
		266	newSVaio_wd (aio_wd wd)
		267	{
		268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		269	}
		270
		271	static aio_req
		272	SvAIO_REQ (SV *sv)
166	{	273	{
167	MAGIC *mg;	274	MAGIC *mg;
168		275
169	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	276	if (!SvROK (sv)
		277	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		278	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		279	&& SvSTASH (SvRV (sv)) != aio_req_stash
		280	&& !sv_derived_from (sv, "IO::AIO::REQ")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	281	croak ("object of class IO::AIO::REQ expected");
171		282
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	283	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		284
174	return mg ? (aio_req)mg->mg_ptr : 0;	285	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	286	}
176		287
		288	static aio_wd
		289	SvAIO_WD (SV *sv)
		290	{
		291	if (!SvROK (sv)
		292	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		295
		296	return (aio_wd)(long)SvIVX (SvRV (sv));
		297	}
		298
		299	static void
177	static void aio_grp_feed (aio_req grp)	300	aio_grp_feed (aio_req grp)
178	{	301	{
179	if (grp->sv2 && SvOK (grp->sv2))	302	if (grp->sv2 && SvOK (grp->sv2))
180	{	303	{
181	dSP;	304	dSP;
182		305
183	ENTER;	306	ENTER;
184	SAVETMPS;	307	SAVETMPS;
185	PUSHMARK (SP);	308	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	309	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	310	PUTBACK;
188	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	311	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
189	SPAGAIN;	312	SPAGAIN;
190	FREETMPS;	313	FREETMPS;
191	LEAVE;	314	LEAVE;
192	}	315	}
193	}	316	}
194		317
		318	static void
195	static void req_submit (eio_req *req)	319	req_submit (eio_req *req)
196	{	320	{
197	eio_submit (req);	321	eio_submit (req);
198		322
199	if (expect_false (on_next_submit))	323	if (expect_false (on_next_submit))
200	{	324	{
…		…
207	PUTBACK;	331	PUTBACK;
208	call_sv (cb, G_DISCARD | G_EVAL);	332	call_sv (cb, G_DISCARD | G_EVAL);
209	}	333	}
210	}	334	}
211		335
		336	static int
212	static int req_invoke (eio_req *req)	337	req_invoke (eio_req *req)
213	{	338	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
218		341
219	if (!EIO_CANCELLED (req) && req->callback)	342	if (!EIO_CANCELLED (req) && req->callback)
220	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
221	ENTER;	348	ENTER;
222	SAVETMPS;	349	SAVETMPS;
223	PUSHMARK (SP);	350	PUSHMARK (SP);
224	EXTEND (SP, 1);	351	EXTEND (SP, 1);
225		352
		353	/* do not recreate the result IV from scratch each time */
		354	if (expect_true (sv_result_cache))
		355	{
		356	sv_result = sv_result_cache; sv_result_cache = 0;
		357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
		359	}
		360	else
		361	{
		362	sv_result = newSViv (req->result);
		363	SvREADONLY_on (sv_result);
		364	}
		365
226	switch (req->type)	366	switch (req->type)
227	{	367	{
		368	case EIO_WD_OPEN:
		369	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		370	break;
		371
228	case EIO_READDIR:	372	case EIO_READDIR:
229	{	373	{
230	SV *rv = &PL_sv_undef;	374	SV *rv = &PL_sv_undef;
231		375
232	if (req->result >= 0)	376	if (req->result >= 0)
233	{	377	{
234	int i;	378	int i;
235	char *buf = req->ptr2;	379	char *names = (char *)req->ptr2;
		380	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
236	AV *av = newAV ();	381	AV *av = newAV ();
237		382
238	av_extend (av, req->result - 1);	383	av_extend (av, req->result - 1);
239		384
240	for (i = 0; i < req->result; ++i)	385	for (i = 0; i < req->result; ++i)
241	{	386	{
242	SV *sv = newSVpv (buf, 0);	387	if (req->int1 & EIO_READDIR_DENTS)
		388	{
		389	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		390
		391	if (req->int1 & EIO_READDIR_CUSTOM2)
		392	{
		393	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		394	AV *avent = newAV ();
		395
		396	av_extend (avent, 2);
		397
		398	if (!sv_type [ent->type])
		399	{
		400	sv_type [ent->type] = newSViv (ent->type);
		401	SvREADONLY_on (sv_type [ent->type]);
		402	}
		403
		404	av_store (avent, 0, namesv);
		405	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		406	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		407
		408	av_store (av, i, newRV_noinc ((SV *)avent));
		409	}
		410	else
244	av_store (av, i, sv);	411	av_store (av, i, namesv);
		412
		413	++ent;
		414	}
		415	else
		416	{
		417	SV *name = newSVpv (names, 0);
		418	av_store (av, i, name);
245	buf += SvCUR (sv) + 1;	419	names += SvCUR (name) + 1;
		420	}
246	}	421	}
247		422
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	423	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	424	}
250		425
251	PUSHs (rv);	426	PUSHs (rv);
		427
		428	if (req->int1 & EIO_READDIR_CUSTOM1)
		429	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
252	}	430	}
253	break;	431	break;
254		432
255	case EIO_OPEN:	433	case EIO_OPEN:
256	{	434	{
…		…
262	GV *gv = (GV *)sv_newmortal ();	440	GV *gv = (GV *)sv_newmortal ();
263	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	441	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
264	char sym [64];	442	char sym [64];
265	int symlen;	443	int symlen;
266		444
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	445	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
268	gv_init (gv, stash, sym, symlen, 0);	446	gv_init (gv, aio_stash, sym, symlen, 0);
269		447
270	symlen = snprintf (	448	symlen = snprintf (
271	sym,	449	sym,
272	sizeof (sym),	450	sizeof (sym),
273	"%s&=%d",	451	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	452	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result	453	(int)req->result
276	);	454	);
277		455
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	456	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
279	fh = (SV *)gv;	457	fh = (SV *)gv;
280	}	458	}
281		459
282	PUSHs (fh);	460	PUSHs (fh);
283	}	461	}
		462	break;
		463
		464	case EIO_STATVFS:
		465	case EIO_FSTATVFS:
		466	{
		467	SV *rv = &PL_sv_undef;
		468
		469	#ifndef _WIN32
		470	if (req->result >= 0)
		471	{
		472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		473	HV *hv = newHV ();
		474
		475	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		476
		477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		478	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		479	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		480	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		481	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		482	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		483	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		484	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		487	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		488	}
		489	#endif
		490
		491	PUSHs (rv);
		492	}
		493
284	break;	494	break;
285		495
286	case EIO_GROUP:	496	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	497	req->int1 = 2; /* mark group as finished */
288		498
…		…
300	case EIO_NOP:	510	case EIO_NOP:
301	case EIO_BUSY:	511	case EIO_BUSY:
302	break;	512	break;
303		513
304	case EIO_READLINK:	514	case EIO_READLINK:
		515	case EIO_REALPATH:
305	if (req->result > 0)	516	if (req->result > 0)
306	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
307	break;	518	break;
308		519
309	case EIO_STAT:	520	case EIO_STAT:
310	case EIO_LSTAT:	521	case EIO_LSTAT:
311	case EIO_FSTAT:	522	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		524
313	PL_laststatval = req->result;	525	if (!(PL_laststatval = req->result))
		526	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
314	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	527	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	528
		529	PUSHs (sv_result);
316	break;	530	break;
317		531
		532	case EIO_SEEK:
		533	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		534	break;
		535
318	case EIO_READ:	536	case EIO_READ:
		537	{
319	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	538	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
320	*SvEND (req->sv2) = 0;	539	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	540	SvPOK_only (req->sv2);
		541	SvSETMAGIC (req->sv2);
		542	PUSHs (sv_result);
		543	}
322	break;	544	break;
323		545
324	case EIO_DUP2:	546	case EIO_CUSTOM:
		547	if (req->feed == fiemap)
		548	{
		549	#if HAVE_FIEMAP
		550	if (!req->result)
		551	{
		552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		553
		554	if (fiemap->fm_extent_count)
		555	{
		556	AV *av = newAV ();
		557	int i;
		558
		559	while (fiemap->fm_mapped_extents)
		560	{
		561	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		562	AV *ext_av = newAV ();
		563
		564	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		565	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		566	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		567	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		568
		569	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		570	}
		571
		572	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		573	}
		574	else
		575	{
		576	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		577	PUSHs (sv_result);
		578	}
		579	}
		580	#endif
		581	}
		582	else
		583	PUSHs (sv_result);
		584	break;
		585
		586	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
325	if (req->result > 0)	587	if (req->result > 0)
326	req->result = 0;	588	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	589	/* FALLTHROUGH */
328		590
329	default:	591	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
331	break;	593	break;
332	}	594	}
333		595
334	errno = req->errorno;	596	errno = req->errorno;
335		597
336	PUTBACK;	598	PUTBACK;
337	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	599	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
338	SPAGAIN;	600	SPAGAIN;
339		601
		602	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		603	SvREFCNT_dec (sv_result);
		604	else
		605	sv_result_cache = sv_result;
		606
340	FREETMPS;	607	FREETMPS;
341	LEAVE;	608	LEAVE;
342		609
343	PUTBACK;	610	PUTBACK;
344	}	611	}
345		612
346	return !!SvTRUE (ERRSV);	613	return !!SvTRUE (ERRSV);
347	}	614	}
348		615
		616	static void
349	static void req_destroy (aio_req req)	617	req_destroy (aio_req req)
350	{	618	{
351	if (req->self)	619	if (req->self)
352	{	620	{
353	sv_unmagic (req->self, PERL_MAGIC_ext);	621	sv_unmagic (req->self, PERL_MAGIC_ext);
354	SvREFCNT_dec (req->self);	622	SvREFCNT_dec (req->self);
355	}	623	}
356		624
357	SvREFCNT_dec (req->sv1);	625	SvREFCNT_dec (req->sv1);
358	SvREFCNT_dec (req->sv2);	626	SvREFCNT_dec (req->sv2);
		627	SvREFCNT_dec (req->sv3);
		628	SvREFCNT_dec (req->sv4);
359	SvREFCNT_dec (req->callback);	629	SvREFCNT_dec (req->callback);
360		630
361	Safefree (req);	631	free (req);
362	}	632	}
363		633
		634	static void
364	static void req_cancel_subs (aio_req grp)	635	req_cancel_subs (aio_req grp)
365	{	636	{
366	aio_req sub;
367
368	if (grp->type != EIO_GROUP)	637	if (grp->type != EIO_GROUP)
369	return;	638	return;
370		639
371	SvREFCNT_dec (grp->sv2);	640	SvREFCNT_dec (grp->sv2);
372	grp->sv2 = 0;	641	grp->sv2 = 0;
373		642
374	eio_grp_cancel (grp);	643	eio_grp_cancel (grp);
375	}	644	}
376		645
377	#ifdef USE_SOCKETS_AS_HANDLES	646	static void ecb_cold
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))	647	create_respipe (void)
379	#else	648	{
380	# define TO_SOCKET(x) (x)	649	if (s_epipe_renew (&respipe))
381	#endif	650	croak ("IO::AIO: unable to initialize result pipe");
		651	}
382		652
383	static void	653	static void
384	create_respipe (void)	654	poll_wait (void)
385	{	655	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))
395	#endif
396	croak ("unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}
420
421	static void poll_wait (void)
422	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	656	while (eio_nreqs ())
426	{	657	{
427	int size;	658	int size;
428		659
429	X_LOCK (reslock);	660	X_LOCK (reslock);
…		…
433	if (size)	664	if (size)
434	return;	665	return;
435		666
436	etp_maybe_start_thread ();	667	etp_maybe_start_thread ();
437		668
438	FD_ZERO (&rfd);	669	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	670	}
443	}	671	}
444		672
445	static int poll_cb (void)	673	static int
		674	poll_cb (void)
446	{	675	{
447	for (;;)	676	for (;;)
448	{	677	{
449	int res = eio_poll ();	678	int res = eio_poll ();
450		679
…		…
456		685
457	poll_wait ();	686	poll_wait ();
458	}	687	}
459	}	688	}
460		689
461	static void atfork_child (void)	690	static void ecb_cold
		691	reinit (void)
462	{	692	{
463	create_respipe ();	693	create_respipe ();
		694
		695	if (eio_init (want_poll, done_poll) < 0)
		696	croak ("IO::AIO: unable to initialise eio library");
464	}	697	}
		698
		699	/*****************************************************************************/
		700
		701	#if !_POSIX_MAPPED_FILES
		702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		703	# define munmap(addr,length) (errno = ENOSYS, -1)
		704	#endif
		705
		706	#if !_POSIX_MEMORY_PROTECTION
		707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		708	# define PROT_NONE 0
		709	# define PROT_WRITE 0
		710	# define MAP_PRIVATE 0
		711	# define MAP_SHARED 0
		712	# define MAP_FIXED 0
		713	#endif
		714
		715	#define MMAP_MAGIC PERL_MAGIC_ext
		716
		717	static int ecb_cold
		718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		719	{
		720	int old_errno = errno;
		721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		722	errno = old_errno;
		723
		724	mg->mg_obj = 0; /* just in case */
		725
		726	SvREADONLY_off (sv);
		727
		728	if (SvPVX (sv) != mg->mg_ptr)
		729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		730
		731	SvCUR_set (sv, 0);
		732	SvPVX (sv) = 0;
		733	SvOK_off (sv);
		734
		735	return 0;
		736	}
		737
		738	static MGVTBL mmap_vtbl = {
		739	0, 0, 0, 0, mmap_free
		740	};
		741
		742	/*****************************************************************************/
465		743
466	static SV *	744	static SV *
467	get_cb (SV *cb_sv)	745	get_cb (SV *cb_sv)
468	{	746	{
469	HV *st;	747	SvGETMAGIC (cb_sv);
470	GV *gvp;	748	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		749	}
		750
		751	static aio_req ecb_noinline
		752	dreq (SV *callback)
		753	{
471	CV *cv;	754	SV *cb_cv;
		755	aio_req req;
		756	int req_pri = next_pri;
		757	next_pri = EIO_PRI_DEFAULT;
472		758
473	if (!SvOK (cb_sv))	759	cb_cv = get_cb (callback);
		760
		761	req = calloc (sizeof (*req), 1);
		762	if (!req)
		763	croak ("out of memory during eio_req allocation");
		764
		765	req->callback = SvREFCNT_inc (cb_cv);
		766	req->pri = req_pri;
		767
474	return 0;	768	return req;
475
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);
477
478	if (!cv)
479	croak ("IO::AIO watcher callback must be undef or a CODE reference");
480
481	return (SV *)cv;
482	}	769	}
483		770
484	#define dREQ \	771	#define dREQ \
485	SV *cb_cv; \	772	aio_req req = dreq (callback); \
486	aio_req req; \
487	int req_pri = next_pri; \
488	next_pri = EIO_PRI_DEFAULT; \
489	\
490	cb_cv = get_cb (callback); \
491	\
492	Newz (0, req, 1, eio_req); \
493	if (!req) \
494	croak ("out of memory during eio_req allocation"); \
495	\
496	req->callback = SvREFCNT_inc (cb_cv); \
497	req->pri = req_pri
498		773
499	#define REQ_SEND \	774	#define REQ_SEND \
500	PUTBACK; \	775	PUTBACK; \
501	req_submit (req); \	776	req_submit (req); \
502	SPAGAIN; \	777	SPAGAIN; \
503	\	778	\
504	if (GIMME_V != G_VOID) \	779	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	780	XPUSHs (req_sv (req, aio_req_stash));
506		781
		782	ecb_inline void
		783	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		784	{
		785	if (expect_false (SvROK (path)))
		786	{
		787	SV *rv = SvRV (path);
		788	SV *wdob;
		789
		790	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		791	{
		792	path = AvARRAY (rv)[1];
		793	wdob = AvARRAY (rv)[0];
		794
		795	if (SvOK (wdob))
		796	{
		797	*wd = SvAIO_WD (wdob);
		798	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		799	}
		800	else
		801	*wd = EIO_INVALID_WD;
		802	}
		803	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		804	{
		805	*wd = (aio_wd)(long)SvIVX (rv);
		806	*wdsv = SvREFCNT_inc_NN (rv);
		807	*ptr = ".";
		808	return; /* path set to "." */
		809	}
		810	else
		811	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		812	}
		813
		814	*pathsv = newSVsv (path);
		815	*ptr = SvPVbyte_nolen (*pathsv);
		816	}
		817
		818	static void ecb_noinline
		819	req_set_path1 (aio_req req, SV *path)
		820	{
		821	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		822	}
		823
		824	static void ecb_noinline
		825	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		826	{
		827	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		828
		829	switch (SvTYPE (rv))
		830	{
		831	case SVt_PVIO:
		832	case SVt_PVLV:
		833	case SVt_PVGV:
		834	req->type = type_fh;
		835	req->sv1 = newSVsv (fh_or_path);
		836	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		837	break;
		838
		839	default:
		840	req->type = type_path;
		841	req_set_path1 (req, fh_or_path);
		842	break;
		843	}
		844	}
		845
		846	XS(boot_IO__AIO) ecb_cold;
		847
507	MODULE = IO::AIO PACKAGE = IO::AIO	848	MODULE = IO::AIO PACKAGE = IO::AIO
508		849
509	PROTOTYPES: ENABLE	850	PROTOTYPES: ENABLE
510		851
511	BOOT:	852	BOOT:
512	{	853	{
		854	static const struct {
		855	const char *name;
		856	IV iv;
		857	} *civ, const_iv[] = {
		858	# define const_niv(name, value) { # name, (IV) value },
		859	# define const_iv(name) { # name, (IV) name },
		860	# define const_eio(name) { # name, (IV) EIO_ ## name },
		861
		862	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		863
		864	const_iv (ENOSYS)
		865	const_iv (EXDEV)
		866	const_iv (EBADR)
		867
		868	const_iv (O_RDONLY)
		869	const_iv (O_WRONLY)
		870	const_iv (O_RDWR)
		871	const_iv (O_CREAT)
		872	const_iv (O_TRUNC)
		873	const_iv (O_EXCL)
		874	const_iv (O_APPEND)
		875
		876	const_iv (O_ASYNC)
		877	const_iv (O_DIRECT)
		878	const_iv (O_NOATIME)
		879
		880	const_iv (O_CLOEXEC)
		881	const_iv (O_NOCTTY)
		882	const_iv (O_NOFOLLOW)
		883	const_iv (O_NONBLOCK)
		884	const_iv (O_EXEC)
		885	const_iv (O_SEARCH)
		886	const_iv (O_DIRECTORY)
		887	const_iv (O_DSYNC)
		888	const_iv (O_RSYNC)
		889	const_iv (O_SYNC)
		890	const_iv (O_TTY_INIT)
		891
		892	const_iv (S_IFIFO)
		893	const_iv (S_IFCHR)
		894	const_iv (S_IFBLK)
		895	const_iv (S_IFLNK)
		896	const_iv (S_IFREG)
		897	const_iv (S_IFDIR)
		898	const_iv (S_IFWHT)
		899	const_iv (S_IFSOCK)
		900	const_iv (S_IFMT)
		901
		902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		908
		909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		914
		915	const_iv (ST_RDONLY)
		916	const_iv (ST_NOSUID)
		917	const_iv (ST_NODEV)
		918	const_iv (ST_NOEXEC)
		919	const_iv (ST_SYNCHRONOUS)
		920	const_iv (ST_MANDLOCK)
		921	const_iv (ST_WRITE)
		922	const_iv (ST_APPEND)
		923	const_iv (ST_IMMUTABLE)
		924	const_iv (ST_NOATIME)
		925	const_iv (ST_NODIRATIME)
		926	const_iv (ST_RELATIME)
		927
		928	const_iv (PROT_NONE)
		929	const_iv (PROT_EXEC)
		930	const_iv (PROT_READ)
		931	const_iv (PROT_WRITE)
		932
		933	/*const_iv (MAP_FIXED)*/
		934	const_iv (MAP_PRIVATE)
		935	const_iv (MAP_SHARED)
		936	const_iv (MAP_ANONYMOUS)
		937
		938	/* linuxish */
		939	const_iv (MAP_HUGETLB)
		940	const_iv (MAP_LOCKED)
		941	const_iv (MAP_NORESERVE)
		942	const_iv (MAP_POPULATE)
		943	const_iv (MAP_NONBLOCK)
		944
		945	const_iv (FIEMAP_FLAG_SYNC)
		946	const_iv (FIEMAP_FLAG_XATTR)
		947	const_iv (FIEMAP_FLAGS_COMPAT)
		948	const_iv (FIEMAP_EXTENT_LAST)
		949	const_iv (FIEMAP_EXTENT_UNKNOWN)
		950	const_iv (FIEMAP_EXTENT_DELALLOC)
		951	const_iv (FIEMAP_EXTENT_ENCODED)
		952	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		953	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		954	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		955	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		956	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		957	const_iv (FIEMAP_EXTENT_MERGED)
		958	const_iv (FIEMAP_EXTENT_SHARED)
		959
		960	const_eio (SEEK_SET)
		961	const_eio (SEEK_CUR)
		962	const_eio (SEEK_END)
		963
		964	const_eio (MCL_FUTURE)
		965	const_eio (MCL_CURRENT)
		966
		967	const_eio (MS_ASYNC)
		968	const_eio (MS_INVALIDATE)
		969	const_eio (MS_SYNC)
		970
		971	const_eio (MT_MODIFY)
		972
		973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		974	const_eio (SYNC_FILE_RANGE_WRITE)
		975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		976
		977	const_eio (FALLOC_FL_KEEP_SIZE)
		978
		979	const_eio (READDIR_DENTS)
		980	const_eio (READDIR_DIRS_FIRST)
		981	const_eio (READDIR_STAT_ORDER)
		982	const_eio (READDIR_FOUND_UNKNOWN)
		983
		984	const_eio (DT_UNKNOWN)
		985	const_eio (DT_FIFO)
		986	const_eio (DT_CHR)
		987	const_eio (DT_DIR)
		988	const_eio (DT_BLK)
		989	const_eio (DT_REG)
		990	const_eio (DT_LNK)
		991	const_eio (DT_SOCK)
		992	const_eio (DT_WHT)
		993	};
		994
513	stash = gv_stashpv ("IO::AIO", 1);	995	aio_stash = gv_stashpv ("IO::AIO" , 1);
		996	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		997	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		998	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
514		999
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1000	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1001	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
519	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
520	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	#endif
523		1002
524	create_respipe ();	1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
525		1004
526	if (eio_init (want_poll, done_poll) < 0)	1005	reinit ();
527	croak ("IO::AIO: unable to initialise eio library");
528
529	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	1006	}
532		1007
533	void	1008	void
		1009	reinit ()
		1010	PROTOTYPE:
		1011
		1012	void
534	max_poll_reqs (int nreqs)	1013	max_poll_reqs (unsigned int nreqs)
535	PROTOTYPE: $	1014	PROTOTYPE: $
536	CODE:	1015	CODE:
537	eio_set_max_poll_reqs (nreqs);	1016	eio_set_max_poll_reqs (nreqs);
538		1017
539	void	1018	void
…		…
541	PROTOTYPE: $	1020	PROTOTYPE: $
542	CODE:	1021	CODE:
543	eio_set_max_poll_time (nseconds);	1022	eio_set_max_poll_time (nseconds);
544		1023
545	void	1024	void
546	min_parallel (int nthreads)	1025	min_parallel (unsigned int nthreads)
547	PROTOTYPE: $	1026	PROTOTYPE: $
548	CODE:	1027	CODE:
549	eio_set_min_parallel (nthreads);	1028	eio_set_min_parallel (nthreads);
550		1029
551	void	1030	void
552	max_parallel (int nthreads)	1031	max_parallel (unsigned int nthreads)
553	PROTOTYPE: $	1032	PROTOTYPE: $
554	CODE:	1033	CODE:
555	eio_set_max_parallel (nthreads);	1034	eio_set_max_parallel (nthreads);
556		1035
557	void	1036	void
558	max_idle (int nthreads)	1037	max_idle (unsigned int nthreads)
559	PROTOTYPE: $	1038	PROTOTYPE: $
560	CODE:	1039	CODE:
561	eio_set_max_idle (nthreads);	1040	eio_set_max_idle (nthreads);
562		1041
563	void	1042	void
		1043	idle_timeout (unsigned int seconds)
		1044	PROTOTYPE: $
		1045	CODE:
		1046	eio_set_idle_timeout (seconds);
		1047
		1048	void
564	max_outstanding (int maxreqs)	1049	max_outstanding (unsigned int maxreqs)
565	PROTOTYPE: $	1050	PROTOTYPE: $
566	CODE:	1051	CODE:
567	max_outstanding = maxreqs;	1052	max_outstanding = maxreqs;
568		1053
569	void	1054	void
		1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1056	PPCODE:
		1057	{
		1058	dREQ;
		1059
		1060	req->type = EIO_WD_OPEN;
		1061	req_set_path1 (req, pathname);
		1062
		1063	REQ_SEND;
		1064	}
		1065
		1066	void
570	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
571	PROTOTYPE: $$$;$
572	PPCODE:	1068	PPCODE:
573	{	1069	{
574	dREQ;	1070	dREQ;
575		1071
576	req->type = EIO_OPEN;	1072	req->type = EIO_OPEN;
577	req->sv1 = newSVsv (pathname);	1073	req_set_path1 (req, pathname);
578	req->ptr1 = SvPVbyte_nolen (req->sv1);
579	req->int1 = flags;	1074	req->int1 = flags;
580	req->int2 = mode;	1075	req->int2 = mode;
581		1076
582	REQ_SEND;	1077	REQ_SEND;
583	}	1078	}
584		1079
585	void	1080	void
586	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
587	PROTOTYPE: $;$
588	ALIAS:	1082	ALIAS:
589	aio_fsync = EIO_FSYNC	1083	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	1084	aio_fdatasync = EIO_FDATASYNC
		1085	aio_syncfs = EIO_SYNCFS
591	PPCODE:	1086	PPCODE:
592	{	1087	{
		1088	int fd = s_fileno_croak (fh, 0);
593	dREQ;	1089	dREQ;
594		1090
595	req->type = ix;	1091	req->type = ix;
596	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
597	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1093	req->int1 = fd;
598		1094
599	REQ_SEND (req);	1095	REQ_SEND;
		1096	}
		1097
		1098	void
		1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1100	PPCODE:
		1101	{
		1102	int fd = s_fileno_croak (fh, 0);
		1103	dREQ;
		1104
		1105	req->type = EIO_SYNC_FILE_RANGE;
		1106	req->sv1 = newSVsv (fh);
		1107	req->int1 = fd;
		1108	req->offs = offset;
		1109	req->size = nbytes;
		1110	req->int2 = flags;
		1111
		1112	REQ_SEND;
		1113	}
		1114
		1115	void
		1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1117	PPCODE:
		1118	{
		1119	int fd = s_fileno_croak (fh, 0);
		1120	dREQ;
		1121
		1122	req->type = EIO_FALLOCATE;
		1123	req->sv1 = newSVsv (fh);
		1124	req->int1 = fd;
		1125	req->int2 = mode;
		1126	req->offs = offset;
		1127	req->size = len;
		1128
		1129	REQ_SEND;
600	}	1130	}
601		1131
602	void	1132	void
603	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)
604	PROTOTYPE: $;$
605	PPCODE:	1134	PPCODE:
606	{	1135	{
607	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1137	int fd = s_fileno_croak (fh, 0);
608	dREQ;	1138	dREQ;
609		1139
610	if (close_pipe < 0)	1140	if (expect_false (close_fd < 0))
611	{	1141	{
612	int pipefd [2];	1142	int pipefd [2];
613		1143
		1144	if (
		1145	#ifdef _WIN32
		1146	_pipe (pipefd, 1, _O_BINARY) < 0
		1147	#else
614	if (pipe (pipefd) < 0	1148	pipe (pipefd) < 0
615	|| close (pipefd [1]) < 0
616	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1149	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1150	#endif
		1151	|| close (pipefd [1]) < 0
		1152	)
617	abort (); /*D*/	1153	abort (); /*D*/
618		1154
619	close_pipe = pipefd [0];	1155	close_fd = pipefd [0];
620	}	1156	}
621		1157
622	req->type = EIO_DUP2;	1158	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	1159	req->int1 = close_fd;
624	req->sv2 = newSVsv (fh);	1160	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1161	req->int2 = fd;
626		1162
627	REQ_SEND (req);	1163	REQ_SEND;
		1164	}
		1165
		1166	void
		1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1168	PPCODE:
		1169	{
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		1173	req->type = EIO_SEEK;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->offs = SvVAL64 (offset);
		1177	req->int2 = whence;
		1178
		1179	REQ_SEND;
628	}	1180	}
629		1181
630	void	1182	void
631	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
632	ALIAS:	1184	ALIAS:
633	aio_read = EIO_READ	1185	aio_read = EIO_READ
634	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$
636	PPCODE:	1187	PPCODE:
637	{	1188	{
638	STRLEN svlen;	1189	STRLEN svlen;
		1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	1192	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		1193
645	if (dataoffset < 0)	1194	if (dataoffset < 0)
646	dataoffset += svlen;	1195	dataoffset += svlen;
647		1196
648	if (dataoffset < 0 || dataoffset > svlen)	1197	if (dataoffset < 0 || dataoffset > svlen)
…		…
654	if (!SvOK (length) || len + dataoffset > svlen)	1203	if (!SvOK (length) || len + dataoffset > svlen)
655	len = svlen - dataoffset;	1204	len = svlen - dataoffset;
656	}	1205	}
657	else	1206	else
658	{	1207	{
659	/* read: grow scalar as necessary */	1208	/* read: check type and grow scalar as necessary */
		1209	SvUPGRADE (data, SVt_PV);
660	svptr = SvGROW (data, len + dataoffset + 1);	1210	svptr = SvGROW (data, len + dataoffset + 1);
661	}	1211	}
662		1212
663	if (len < 0)
664	croak ("length must not be negative");
665
666	{	1213	{
667	dREQ;	1214	dREQ;
668		1215
669	req->type = ix;	1216	req->type = ix;
670	req->sv1 = newSVsv (fh);	1217	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1218	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1219	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	1220	req->size = len;
675	req->sv2 = SvREFCNT_inc (data);	1221	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	1222	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	1223	req->stroffset = dataoffset;
…		…
685	REQ_SEND;	1231	REQ_SEND;
686	}	1232	}
687	}	1233	}
688		1234
689	void	1235	void
690	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
691	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
692	PPCODE:	1240	PPCODE:
693	{	1241	{
694	SV *data;
695	dREQ;	1242	dREQ;
696		1243
697	req->type = EIO_READLINK;	1244	req->type = ix;
698	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
699	req->ptr1 = SvPVbyte_nolen (req->sv1);
700		1246
701	REQ_SEND;	1247	REQ_SEND;
702	}	1248	}
703		1249
704	void	1250	void
705	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
706	PROTOTYPE: $$$$;$
707	PPCODE:	1252	PPCODE:
708	{	1253	{
		1254	int ifd = s_fileno_croak (in_fh , 0);
		1255	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1256	dREQ;
710		1257
711	req->type = EIO_SENDFILE;	1258	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1259	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1260	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1261	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1262	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1263	req->offs = in_offset;
717	req->size = length;	1264	req->size = length;
718		1265
719	REQ_SEND;	1266	REQ_SEND;
720	}	1267	}
721		1268
722	void	1269	void
723	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
724	PROTOTYPE: $$$;$
725	PPCODE:	1271	PPCODE:
726	{	1272	{
		1273	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1274	dREQ;
728		1275
729	req->type = EIO_READAHEAD;	1276	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1277	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1278	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1279	req->offs = offset;
733	req->size = length;	1280	req->size = length;
734		1281
735	REQ_SEND;	1282	REQ_SEND;
736	}	1283	}
737		1284
738	void	1285	void
739	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
740	ALIAS:	1287	ALIAS:
741	aio_stat = EIO_STAT	1288	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1289	aio_lstat = EIO_LSTAT
		1290	aio_statvfs = EIO_STATVFS
743	PPCODE:	1291	PPCODE:
744	{	1292	{
745	dREQ;	1293	dREQ;
746		1294
747	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
748
749	if (SvPOK (req->sv1))
750	{
751	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}
754	else
755	{
756	req->type = EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}
759		1296
760	REQ_SEND;	1297	REQ_SEND;
761	}	1298	}
		1299
		1300	UV
		1301	major (UV dev)
		1302	ALIAS:
		1303	minor = 1
		1304	CODE:
		1305	RETVAL = ix ? major (dev) : minor (dev);
		1306	OUTPUT:
		1307	RETVAL
		1308
		1309	UV
		1310	makedev (UV maj, UV min)
		1311	CODE:
		1312	RETVAL = makedev (maj, min);
		1313	OUTPUT:
		1314	RETVAL
762		1315
763	void	1316	void
764	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
765	PPCODE:	1318	PPCODE:
766	{	1319	{
767	dREQ;	1320	dREQ;
768		1321
769	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
770	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
771	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
772
773	if (SvPOK (req->sv1))
774	{
775	req->type = EIO_UTIME;
776	req->ptr1 = SvPVbyte_nolen (req->sv1);
777	}
778	else
779	{
780	req->type = EIO_FUTIME;
781	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
782	}
783		1325
784	REQ_SEND;	1326	REQ_SEND;
785	}	1327	}
786		1328
787	void	1329	void
788	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
789	PPCODE:	1331	PPCODE:
790	{	1332	{
791	dREQ;	1333	dREQ;
792		1334
793	req->sv1 = newSVsv (fh_or_path);
794	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
795		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
796	if (SvPOK (req->sv1))
797	{
798	req->type = EIO_TRUNCATE;
799	req->ptr1 = SvPVbyte_nolen (req->sv1);
800	}
801	else
802	{
803	req->type = EIO_FTRUNCATE;
804	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
805	}
806		1337
807	REQ_SEND;	1338	REQ_SEND;
808	}	1339	}
809		1340
810	void	1341	void
811	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
812	ALIAS:
813	aio_chmod = EIO_CHMOD
814	aio_mkdir = EIO_MKDIR
815	PPCODE:	1343	PPCODE:
816	{	1344	{
817	dREQ;	1345	dREQ;
818		1346
819	req->int2 = mode;	1347	req->int2 = mode;
820	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
821
822	if (SvPOK (req->sv1))
823	{
824	req->type = ix;
825	req->ptr1 = SvPVbyte_nolen (req->sv1);
826	}
827	else
828	{
829	req->type = EIO_FCHMOD;
830	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
831	}
832		1349
833	REQ_SEND;	1350	REQ_SEND;
834	}	1351	}
835		1352
836	void	1353	void
…		…
839	{	1356	{
840	dREQ;	1357	dREQ;
841		1358
842	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
843	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
844	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
845		1362
846	if (SvPOK (req->sv1))	1363	REQ_SEND;
847	{	1364	}
		1365
		1366	void
		1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1368	PPCODE:
		1369	{
		1370	dREQ;
		1371
		1372	req->type = EIO_READDIR;
		1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1374
		1375	if (flags & EIO_READDIR_DENTS)
		1376	req->int1 |= EIO_READDIR_CUSTOM2;
		1377
		1378	req_set_path1 (req, pathname);
		1379
		1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
848	req->type = EIO_CHOWN;	1389	req->type = EIO_MKDIR;
849	req->ptr1 = SvPVbyte_nolen (req->sv1);	1390	req->int2 = mode;
850	}	1391	req_set_path1 (req, pathname);
851	else
852	{
853	req->type = EIO_FCHOWN;
854	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855	}
856		1392
857	REQ_SEND;	1393	REQ_SEND;
858	}	1394	}
859		1395
860	void	1396	void
…		…
866	PPCODE:	1402	PPCODE:
867	{	1403	{
868	dREQ;	1404	dREQ;
869		1405
870	req->type = ix;	1406	req->type = ix;
871	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873		1408
874	REQ_SEND;	1409	REQ_SEND;
875	}	1410	}
876		1411
877	void	1412	void
…		…
880	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
881	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
882	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
883	PPCODE:	1418	PPCODE:
884	{	1419	{
		1420	eio_wd wd2 = 0;
885	dREQ;	1421	dREQ;
886		1422
887	req->type = ix;	1423	req->type = ix;
888	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
889	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
890	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
891	req->ptr2 = SvPVbyte_nolen (req->sv2);
892		1427
893	REQ_SEND;	1428	REQ_SEND;
894	}	1429	}
895		1430
896	void	1431	void
…		…
898	PPCODE:	1433	PPCODE:
899	{	1434	{
900	dREQ;	1435	dREQ;
901		1436
902	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
903	req->sv1 = newSVsv (pathname);
904	req->ptr1 = SvPVbyte_nolen (req->sv1);
905	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
906	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
907		1441
908	REQ_SEND;	1442	REQ_SEND;
909	}	1443	}
910		1444
911	void	1445	void
		1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1447	ALIAS:
		1448	aio_mtouch = EIO_MTOUCH
		1449	aio_msync = EIO_MSYNC
		1450	PPCODE:
		1451	{
		1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
		1454	UV len = SvUV (length);
		1455
		1456	if (offset < 0)
		1457	offset += svlen;
		1458
		1459	if (offset < 0 || offset > svlen)
		1460	croak ("offset outside of scalar");
		1461
		1462	if (!SvOK (length) || len + offset > svlen)
		1463	len = svlen - offset;
		1464
		1465	{
		1466	dREQ;
		1467
		1468	req->type = ix;
		1469	req->sv2 = SvREFCNT_inc (data);
		1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
		1472	req->int1 = flags;
		1473
		1474	REQ_SEND;
		1475	}
		1476	}
		1477
		1478	void
		1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1480	PPCODE:
		1481	{
		1482	STRLEN svlen;
		1483	char *svptr = SvPVbyte (data, svlen);
		1484	UV len = SvUV (length);
		1485
		1486	if (offset < 0)
		1487	offset += svlen;
		1488
		1489	if (offset < 0 || offset > svlen)
		1490	croak ("offset outside of scalar");
		1491
		1492	if (!SvOK (length) || len + offset > svlen)
		1493	len = svlen - offset;
		1494
		1495	{
		1496	dREQ;
		1497
		1498	req->type = EIO_MLOCK;
		1499	req->sv2 = SvREFCNT_inc (data);
		1500	req->ptr2 = (char *)svptr + offset;
		1501	req->size = len;
		1502
		1503	REQ_SEND;
		1504	}
		1505	}
		1506
		1507	void
		1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1509	PPCODE:
		1510	{
		1511	dREQ;
		1512
		1513	req->type = EIO_MLOCKALL;
		1514	req->int1 = flags;
		1515
		1516	REQ_SEND;
		1517	}
		1518
		1519	void
		1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1521	PPCODE:
		1522	{
		1523	int fd = s_fileno_croak (fh, 0);
		1524	dREQ;
		1525
		1526	req->type = EIO_CUSTOM;
		1527	req->sv1 = newSVsv (fh);
		1528	req->int1 = fd;
		1529
		1530	req->feed = fiemap;
		1531	#if HAVE_FIEMAP
		1532	/* keep our fingers crossed that the next two types are 64 bit */
		1533	req->offs = start;
		1534	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1535	req->int2 = flags;
		1536	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1537	#endif
		1538
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1543	aio_busy (double delay, SV *callback=&PL_sv_undef)
913	PPCODE:	1544	PPCODE:
914	{	1545	{
915	dREQ;	1546	dREQ;
916		1547
…		…
920	REQ_SEND;	1551	REQ_SEND;
921	}	1552	}
922		1553
923	void	1554	void
924	aio_group (SV *callback=&PL_sv_undef)	1555	aio_group (SV *callback=&PL_sv_undef)
925	PROTOTYPE: ;$
926	PPCODE:	1556	PPCODE:
927	{	1557	{
928	dREQ;	1558	dREQ;
929		1559
930	req->type = EIO_GROUP;	1560	req->type = EIO_GROUP;
931		1561
932	req_submit (req);	1562	req_submit (req);
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1563	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1564	}
935		1565
936	void	1566	void
937	aio_nop (SV *callback=&PL_sv_undef)	1567	aio_nop (SV *callback=&PL_sv_undef)
938	ALIAS:	1568	ALIAS:
…		…
947	REQ_SEND;	1577	REQ_SEND;
948	}	1578	}
949		1579
950	int	1580	int
951	aioreq_pri (int pri = 0)	1581	aioreq_pri (int pri = 0)
952	PROTOTYPE: ;$
953	CODE:	1582	CODE:
954	RETVAL = next_pri;	1583	RETVAL = next_pri;
955	if (items > 0)	1584	if (items > 0)
956	{	1585	{
957	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
969	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1598	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
970	next_pri = nice;	1599	next_pri = nice;
971		1600
972	void	1601	void
973	flush ()	1602	flush ()
974	PROTOTYPE:
975	CODE:	1603	CODE:
976	while (eio_nreqs ())	1604	while (eio_nreqs ())
977	{	1605	{
978	poll_wait ();	1606	poll_wait ();
979	poll_cb ();	1607	poll_cb ();
980	}	1608	}
981		1609
982	int	1610	int
983	poll()	1611	poll ()
984	PROTOTYPE:
985	CODE:	1612	CODE:
986	poll_wait ();	1613	poll_wait ();
987	RETVAL = poll_cb ();	1614	RETVAL = poll_cb ();
988	OUTPUT:	1615	OUTPUT:
989	RETVAL	1616	RETVAL
990		1617
991	int	1618	int
992	poll_fileno()	1619	poll_fileno ()
993	PROTOTYPE:
994	CODE:	1620	CODE:
995	RETVAL = respipe [0];	1621	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1622	OUTPUT:
997	RETVAL	1623	RETVAL
998		1624
999	int	1625	int
1000	poll_cb(...)	1626	poll_cb (...)
1001	PROTOTYPE:	1627	PROTOTYPE:
1002	CODE:	1628	CODE:
1003	RETVAL = poll_cb ();	1629	RETVAL = poll_cb ();
1004	OUTPUT:	1630	OUTPUT:
1005	RETVAL	1631	RETVAL
1006		1632
1007	void	1633	void
1008	poll_wait()	1634	poll_wait ()
1009	PROTOTYPE:
1010	CODE:	1635	CODE:
1011	poll_wait ();	1636	poll_wait ();
1012		1637
1013	int	1638	int
1014	nreqs()	1639	nreqs ()
1015	PROTOTYPE:
1016	CODE:	1640	CODE:
1017	RETVAL = eio_nreqs ();	1641	RETVAL = eio_nreqs ();
1018	OUTPUT:	1642	OUTPUT:
1019	RETVAL	1643	RETVAL
1020		1644
1021	int	1645	int
1022	nready()	1646	nready ()
1023	PROTOTYPE:
1024	CODE:	1647	CODE:
1025	RETVAL = eio_nready ();	1648	RETVAL = eio_nready ();
1026	OUTPUT:	1649	OUTPUT:
1027	RETVAL	1650	RETVAL
1028		1651
1029	int	1652	int
1030	npending()	1653	npending ()
1031	PROTOTYPE:
1032	CODE:	1654	CODE:
1033	RETVAL = eio_npending ();	1655	RETVAL = eio_npending ();
1034	OUTPUT:	1656	OUTPUT:
1035	RETVAL	1657	RETVAL
1036		1658
1037	int	1659	int
1038	nthreads()	1660	nthreads ()
1039	PROTOTYPE:
1040	CODE:	1661	CODE:
1041	RETVAL = eio_nthreads ();	1662	RETVAL = eio_nthreads ();
1042	OUTPUT:	1663	OUTPUT:
1043	RETVAL	1664	RETVAL
1044		1665
		1666	int
		1667	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1668	CODE:
		1669	RETVAL = posix_fadvise (fh, offset, length, advice);
		1670	OUTPUT:
		1671	RETVAL
		1672
		1673	IV
		1674	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1675	CODE:
		1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1677	OUTPUT:
		1678	RETVAL
		1679
		1680	void
		1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1682	PPCODE:
		1683	sv_unmagic (scalar, MMAP_MAGIC);
		1684	{
		1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1687	if (addr == (void *)-1)
		1688	XSRETURN_NO;
		1689
		1690	sv_force_normal (scalar);
		1691
		1692	/* we store the length in mg_obj, as namlen is I32 :/ */
		1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1694	->mg_obj = (SV *)length;
		1695
		1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1697
		1698	if (!(prot & PROT_WRITE))
		1699	SvREADONLY_on (scalar);
		1700
		1701	if (SvLEN (scalar))
		1702	Safefree (SvPVX (scalar));
		1703
		1704	SvPVX (scalar) = (char *)addr;
		1705	SvCUR_set (scalar, length);
		1706	SvLEN_set (scalar, 0);
		1707	SvPOK_only (scalar);
		1708
		1709	XSRETURN_YES;
		1710	}
		1711
		1712	void
		1713	munmap (SV *scalar)
		1714	CODE:
		1715	sv_unmagic (scalar, MMAP_MAGIC);
		1716
		1717	int
		1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1719	ALIAS:
		1720	mprotect = 1
		1721	CODE:
		1722	{
		1723	STRLEN svlen;
		1724	void *addr = SvPVbyte (scalar, svlen);
		1725	size_t len = SvUV (length);
		1726
		1727	if (offset < 0)
		1728	offset += svlen;
		1729
		1730	if (offset < 0 || offset > svlen)
		1731	croak ("offset outside of scalar");
		1732
		1733	if (!SvOK (length) || len + offset > svlen)
		1734	len = svlen - offset;
		1735
		1736	addr = (void *)(((intptr_t)addr) + offset);
		1737	eio_page_align (&addr, &len);
		1738
		1739	switch (ix)
		1740	{
		1741	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1742	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1743	}
		1744	}
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int
		1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1750	CODE:
		1751	{
		1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
		1755
		1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
		1763	len = svlen - offset;
		1764
		1765	addr = (void *)(((intptr_t)addr) + offset);
		1766	eio_page_align (&addr, &len);
		1767	#if _POSIX_MEMLOCK_RANGE
		1768	RETVAL = munlock (addr, len);
		1769	#else
		1770	RETVAL = ((errno = ENOSYS), -1);
		1771	#endif
		1772	}
		1773	OUTPUT:
		1774	RETVAL
		1775
		1776	int
		1777	munlockall ()
		1778	CODE:
		1779	#if _POSIX_MEMLOCK
		1780	munlockall ();
		1781	#else
		1782	RETVAL = -1;
		1783	errno = ENOSYS;
		1784	#endif
		1785	OUTPUT:
		1786	RETVAL
		1787
1045	void _on_next_submit (SV *cb)	1788	void _on_next_submit (SV *cb)
1046	CODE:	1789	CODE:
1047	SvREFCNT_dec (on_next_submit);	1790	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1792
1050	PROTOTYPES: DISABLE	1793	PROTOTYPES: DISABLE
1051		1794
		1795	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1796
		1797	BOOT:
		1798	{
		1799	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1800	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1801	}
		1802
		1803	void
		1804	DESTROY (SV *self)
		1805	CODE:
		1806	{
		1807	aio_wd wd = SvAIO_WD (self);
		1808	#if HAVE_AT
		1809	{
		1810	SV *callback = &PL_sv_undef;
		1811	dREQ; /* clobbers next_pri :/ */
		1812	next_pri = req->pri; /* restore next_pri */
		1813	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1814	req->type = EIO_WD_CLOSE;
		1815	req->wd = wd;
		1816	REQ_SEND;
		1817	}
		1818	#else
		1819	eio_wd_close_sync (wd);
		1820	#endif
		1821	}
		1822
1052	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1823	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1053		1824
1054	void	1825	void
1055	cancel (aio_req_ornot req)	1826	cancel (aio_req_ornot req)
1056	CODE:	1827	CODE:
…		…
1063	if (GIMME_V != G_VOID)	1834	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1835	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1836
1066	if (items > 1)	1837	if (items > 1)
1067	{	1838	{
1068	SV *cb_cv = get_cb (callback);	1839	SV *cb_cv =get_cb (callback);
1069		1840
1070	SvREFCNT_dec (req->callback);	1841	SvREFCNT_dec (req->callback);
1071	req->callback = SvREFCNT_inc (cb_cv);	1842	req->callback = SvREFCNT_inc (cb_cv);
1072	}	1843	}
1073	}	1844	}
…		…
1110	AV *av;	1881	AV *av;
1111		1882
1112	grp->errorno = errno;	1883	grp->errorno = errno;
1113		1884
1114	av = newAV ();	1885	av = newAV ();
		1886	av_extend (av, items - 1);
1115		1887
1116	for (i = 1; i < items; ++i )	1888	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	1889	av_push (av, newSVsv (ST (i)));
1118		1890
1119	SvREFCNT_dec (grp->sv1);	1891	SvREFCNT_dec (grp->sv1);
…		…
1133	void	1905	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	1906	feed (aio_req grp, SV *callback=&PL_sv_undef)
1135	CODE:	1907	CODE:
1136	{	1908	{
1137	SvREFCNT_dec (grp->sv2);	1909	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	1910	grp->sv2 = newSVsv (callback);
		1911	grp->feed = aio_grp_feed;
1139		1912
1140	if (grp->int2 <= 0)	1913	if (grp->int2 <= 0)
1141	grp->int2 = 2;	1914	grp->int2 = 2;
1142		1915
1143	eio_grp_limit (grp, grp->int2);	1916	eio_grp_limit (grp, grp->int2);

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