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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.132 by root, Mon Oct 13 10:38:17 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 req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
118		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	/*****************************************************************************/
		220
119	enum {	221	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	223	};
122		224
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	225	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	226	typedef eio_req *aio_req_ornot;
		227	typedef eio_wd aio_wd;
127		228
128	static SV *on_next_submit;	229	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	230	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	231	static int max_outstanding;
131		232
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	233	static s_epipe respipe;
133		234
134	static void req_destroy (aio_req req);	235	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	236	static void req_cancel (aio_req req);
136		237
137	static void want_poll (void)	238	static void
		239	want_poll (void)
138	{	240	{
139	/* write a dummy byte to the pipe so fh becomes ready */	241	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	242	s_epipe_signal (&respipe);
141	}	243	}
142		244
143	static void done_poll (void)	245	static void
		246	done_poll (void)
144	{	247	{
145	/* read any signals sent by the worker threads */	248	/* read any signals sent by the worker threads */
146	char buf [4];	249	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	250	}
150		251
151	/* must be called at most once */	252	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	253	static SV *
		254	req_sv (aio_req req, HV *stash)
153	{	255	{
154	if (!req->self)	256	if (!req->self)
155	{	257	{
156	req->self = (SV *)newHV ();	258	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	259	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	260	}
159		261
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	262	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	263	}
162		264
163	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)
164	{	273	{
165	MAGIC *mg;	274	MAGIC *mg;
166		275
167	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")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	281	croak ("object of class IO::AIO::REQ expected");
169		282
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	283	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		284
172	return mg ? (aio_req)mg->mg_ptr : 0;	285	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	286	}
174		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
175	static void aio_grp_feed (aio_req grp)	300	aio_grp_feed (aio_req grp)
176	{	301	{
177	if (grp->sv2 && SvOK (grp->sv2))	302	if (grp->sv2 && SvOK (grp->sv2))
178	{	303	{
179	dSP;	304	dSP;
180		305
181	ENTER;	306	ENTER;
182	SAVETMPS;	307	SAVETMPS;
183	PUSHMARK (SP);	308	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	309	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	310	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	311	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	312	SPAGAIN;
188	FREETMPS;	313	FREETMPS;
189	LEAVE;	314	LEAVE;
190	}	315	}
191	}	316	}
192		317
		318	static void
193	static void req_submit (eio_req *req)	319	req_submit (eio_req *req)
194	{	320	{
195	eio_submit (req);	321	eio_submit (req);
196		322
197	if (expect_false (on_next_submit))	323	if (expect_false (on_next_submit))
198	{	324	{
…		…
205	PUTBACK;	331	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	332	call_sv (cb, G_DISCARD | G_EVAL);
207	}	333	}
208	}	334	}
209		335
		336	static int
210	static int req_invoke (eio_req *req)	337	req_invoke (eio_req *req)
211	{	338	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
216		341
217	if (!EIO_CANCELLED (req) && req->callback)	342	if (!EIO_CANCELLED (req) && req->callback)
218	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
219	ENTER;	348	ENTER;
220	SAVETMPS;	349	SAVETMPS;
221	PUSHMARK (SP);	350	PUSHMARK (SP);
222	EXTEND (SP, 1);	351	EXTEND (SP, 1);
223		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
224	switch (req->type)	366	switch (req->type)
225	{	367	{
		368	case EIO_WD_OPEN:
		369	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		370	break;
		371
226	case EIO_READDIR:	372	case EIO_READDIR:
227	{	373	{
228	SV *rv = &PL_sv_undef;	374	SV *rv = &PL_sv_undef;
229		375
230	if (req->result >= 0)	376	if (req->result >= 0)
231	{	377	{
232	int i;	378	int i;
233	char *buf = req->ptr2;	379	char *names = (char *)req->ptr2;
		380	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	381	AV *av = newAV ();
235		382
236	av_extend (av, req->result - 1);	383	av_extend (av, req->result - 1);
237		384
238	for (i = 0; i < req->result; ++i)	385	for (i = 0; i < req->result; ++i)
239	{	386	{
240	SV *sv = newSVpv (buf, 0);	387	if (req->int1 & EIO_READDIR_DENTS)
		388	{
		389	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		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
242	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);
243	buf += SvCUR (sv) + 1;	419	names += SvCUR (name) + 1;
		420	}
244	}	421	}
245		422
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	423	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	424	}
248		425
249	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))));
250	}	430	}
251	break;	431	break;
252		432
253	case EIO_OPEN:	433	case EIO_OPEN:
254	{	434	{
…		…
260	GV *gv = (GV *)sv_newmortal ();	440	GV *gv = (GV *)sv_newmortal ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	441	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
262	char sym [64];	442	char sym [64];
263	int symlen;	443	int symlen;
264		444
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	445	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
266	gv_init (gv, stash, sym, symlen, 0);	446	gv_init (gv, aio_stash, sym, symlen, 0);
267		447
268	symlen = snprintf (	448	symlen = snprintf (
269	sym,	449	sym,
270	sizeof (sym),	450	sizeof (sym),
271	"%s&=%d",	451	"%s&=%d",
272	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	452	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273	req->result	453	(int)req->result
274	);	454	);
275		455
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	456	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
277	fh = (SV *)gv;	457	fh = (SV *)gv;
278	}	458	}
279		459
280	PUSHs (fh);	460	PUSHs (fh);
281	}	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
282	break;	494	break;
283		495
284	case EIO_GROUP:	496	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	497	req->int1 = 2; /* mark group as finished */
286		498
…		…
298	case EIO_NOP:	510	case EIO_NOP:
299	case EIO_BUSY:	511	case EIO_BUSY:
300	break;	512	break;
301		513
302	case EIO_READLINK:	514	case EIO_READLINK:
		515	case EIO_REALPATH:
303	if (req->result > 0)	516	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	518	break;
306		519
307	case EIO_STAT:	520	case EIO_STAT:
308	case EIO_LSTAT:	521	case EIO_LSTAT:
309	case EIO_FSTAT:	522	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		524
311	PL_laststatval = req->result;	525	if (!(PL_laststatval = req->result))
		526	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	527	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	528
		529	PUSHs (sv_result);
314	break;	530	break;
315		531
		532	case EIO_SEEK:
		533	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		534	break;
		535
316	case EIO_READ:	536	case EIO_READ:
		537	{
317	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));
318	*SvEND (req->sv2) = 0;	539	*SvEND (req->sv2) = 0;
319	PUSHs (sv_2mortal (newSViv (req->result)));	540	SvPOK_only (req->sv2);
		541	SvSETMAGIC (req->sv2);
		542	PUSHs (sv_result);
		543	}
320	break;	544	break;
321		545
322	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 */
323	if (req->result > 0)	587	if (req->result > 0)
324	req->result = 0;	588	SvIV_set (sv_result, 0);
325	/* FALLTHROUGH */	589	/* FALLTHROUGH */
326		590
327	default:	591	default:
328	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
329	break;	593	break;
330	}	594	}
331		595
332	errno = req->errorno;	596	errno = req->errorno;
333		597
334	PUTBACK;	598	PUTBACK;
335	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	599	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336	SPAGAIN;	600	SPAGAIN;
337		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
338	FREETMPS;	607	FREETMPS;
339	LEAVE;	608	LEAVE;
340		609
341	PUTBACK;	610	PUTBACK;
342	}	611	}
343		612
344	return !!SvTRUE (ERRSV);	613	return !!SvTRUE (ERRSV);
345	}	614	}
346		615
		616	static void
347	static void req_destroy (aio_req req)	617	req_destroy (aio_req req)
348	{	618	{
349	if (req->self)	619	if (req->self)
350	{	620	{
351	sv_unmagic (req->self, PERL_MAGIC_ext);	621	sv_unmagic (req->self, PERL_MAGIC_ext);
352	SvREFCNT_dec (req->self);	622	SvREFCNT_dec (req->self);
353	}	623	}
354		624
355	SvREFCNT_dec (req->sv1);	625	SvREFCNT_dec (req->sv1);
356	SvREFCNT_dec (req->sv2);	626	SvREFCNT_dec (req->sv2);
		627	SvREFCNT_dec (req->sv3);
		628	SvREFCNT_dec (req->sv4);
357	SvREFCNT_dec (req->callback);	629	SvREFCNT_dec (req->callback);
358		630
359	Safefree (req);	631	free (req);
360	}	632	}
361		633
		634	static void
362	static void req_cancel_subs (aio_req grp)	635	req_cancel_subs (aio_req grp)
363	{	636	{
364	aio_req sub;
365
366	if (grp->type != EIO_GROUP)	637	if (grp->type != EIO_GROUP)
367	return;	638	return;
368		639
369	SvREFCNT_dec (grp->sv2);	640	SvREFCNT_dec (grp->sv2);
370	grp->sv2 = 0;	641	grp->sv2 = 0;
371		642
372	eio_grp_cancel (grp);	643	eio_grp_cancel (grp);
373	}	644	}
374		645
375	#ifdef USE_SOCKETS_AS_HANDLES	646	static void ecb_cold
376	# define TO_SOCKET(x) (win32_get_osfhandle (x))	647	create_respipe (void)
377	#else	648	{
378	# define TO_SOCKET(x) (x)	649	if (s_epipe_renew (&respipe))
379	#endif	650	croak ("IO::AIO: unable to initialize result pipe");
		651	}
380		652
381	static void	653	static void
382	create_respipe (void)	654	poll_wait (void)
383	{	655	{
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 ())	656	while (eio_nreqs ())
424	{	657	{
425	int size;	658	int size;
426		659
427	X_LOCK (reslock);	660	X_LOCK (reslock);
…		…
431	if (size)	664	if (size)
432	return;	665	return;
433		666
434	etp_maybe_start_thread ();	667	etp_maybe_start_thread ();
435		668
436	FD_ZERO (&rfd);	669	s_epipe_wait (&respipe);
437	FD_SET (respipe [0], &rfd);
438
439	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440	}	670	}
441	}	671	}
442		672
443	static int poll_cb (void)	673	static int
		674	poll_cb (void)
444	{	675	{
445	for (;;)	676	for (;;)
446	{	677	{
447	int res = eio_poll ();	678	int res = eio_poll ();
448		679
…		…
454		685
455	poll_wait ();	686	poll_wait ();
456	}	687	}
457	}	688	}
458		689
459	static void atfork_child (void)	690	static void ecb_cold
		691	reinit (void)
460	{	692	{
461	create_respipe ();	693	create_respipe ();
		694
		695	if (eio_init (want_poll, done_poll) < 0)
		696	croak ("IO::AIO: unable to initialise eio library");
462	}	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	/*****************************************************************************/
463		743
464	static SV *	744	static SV *
465	get_cb (SV *cb_sv)	745	get_cb (SV *cb_sv)
466	{	746	{
467	HV *st;	747	SvGETMAGIC (cb_sv);
468	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	{
469	CV *cv;	754	SV *cb_cv;
		755	aio_req req;
		756	int req_pri = next_pri;
		757	next_pri = EIO_PRI_DEFAULT;
470		758
471	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
472	return 0;	768	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	}	769	}
481		770
482	#define dREQ \	771	#define dREQ \
483	SV *cb_cv; \	772	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		773
497	#define REQ_SEND \	774	#define REQ_SEND \
498	PUTBACK; \	775	PUTBACK; \
499	req_submit (req); \	776	req_submit (req); \
500	SPAGAIN; \	777	SPAGAIN; \
501	\	778	\
502	if (GIMME_V != G_VOID) \	779	if (GIMME_V != G_VOID) \
503	XPUSHs (req_sv (req, AIO_REQ_KLASS));	780	XPUSHs (req_sv (req, aio_req_stash));
504		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
505	MODULE = IO::AIO PACKAGE = IO::AIO	848	MODULE = IO::AIO PACKAGE = IO::AIO
506		849
507	PROTOTYPES: ENABLE	850	PROTOTYPES: ENABLE
508		851
509	BOOT:	852	BOOT:
510	{	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
511	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);
512		999
513	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1000	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
514	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1001	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		1002
522	create_respipe ();	1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
523		1004
524	if (eio_init (want_poll, done_poll) < 0)	1005	reinit ();
525	croak ("IO::AIO: unable to initialise eio library");
526
527	/* atfork child called in fifo order, so before eio's handler */
528	X_THREAD_ATFORK (0, 0, atfork_child);
529	}	1006	}
530		1007
531	void	1008	void
		1009	reinit ()
		1010	PROTOTYPE:
		1011
		1012	void
532	max_poll_reqs (int nreqs)	1013	max_poll_reqs (unsigned int nreqs)
533	PROTOTYPE: $	1014	PROTOTYPE: $
534	CODE:	1015	CODE:
535	eio_set_max_poll_reqs (nreqs);	1016	eio_set_max_poll_reqs (nreqs);
536		1017
537	void	1018	void
…		…
539	PROTOTYPE: $	1020	PROTOTYPE: $
540	CODE:	1021	CODE:
541	eio_set_max_poll_time (nseconds);	1022	eio_set_max_poll_time (nseconds);
542		1023
543	void	1024	void
544	min_parallel (int nthreads)	1025	min_parallel (unsigned int nthreads)
545	PROTOTYPE: $	1026	PROTOTYPE: $
546	CODE:	1027	CODE:
547	eio_set_min_parallel (nthreads);	1028	eio_set_min_parallel (nthreads);
548		1029
549	void	1030	void
550	max_parallel (int nthreads)	1031	max_parallel (unsigned int nthreads)
551	PROTOTYPE: $	1032	PROTOTYPE: $
552	CODE:	1033	CODE:
553	eio_set_max_parallel (nthreads);	1034	eio_set_max_parallel (nthreads);
554		1035
555	void	1036	void
556	max_idle (int nthreads)	1037	max_idle (unsigned int nthreads)
557	PROTOTYPE: $	1038	PROTOTYPE: $
558	CODE:	1039	CODE:
559	eio_set_max_idle (nthreads);	1040	eio_set_max_idle (nthreads);
560		1041
561	void	1042	void
		1043	idle_timeout (unsigned int seconds)
		1044	PROTOTYPE: $
		1045	CODE:
		1046	eio_set_idle_timeout (seconds);
		1047
		1048	void
562	max_outstanding (int maxreqs)	1049	max_outstanding (unsigned int maxreqs)
563	PROTOTYPE: $	1050	PROTOTYPE: $
564	CODE:	1051	CODE:
565	max_outstanding = maxreqs;	1052	max_outstanding = maxreqs;
566		1053
567	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
568	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)
569	PROTOTYPE: $$$;$
570	PPCODE:	1068	PPCODE:
571	{	1069	{
572	dREQ;	1070	dREQ;
573		1071
574	req->type = EIO_OPEN;	1072	req->type = EIO_OPEN;
575	req->sv1 = newSVsv (pathname);	1073	req_set_path1 (req, pathname);
576	req->ptr1 = SvPVbyte_nolen (req->sv1);
577	req->int1 = flags;	1074	req->int1 = flags;
578	req->int2 = mode;	1075	req->int2 = mode;
579		1076
580	REQ_SEND;	1077	REQ_SEND;
581	}	1078	}
582		1079
583	void	1080	void
584	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
585	PROTOTYPE: $;$
586	ALIAS:	1082	ALIAS:
587	aio_fsync = EIO_FSYNC	1083	aio_fsync = EIO_FSYNC
588	aio_fdatasync = EIO_FDATASYNC	1084	aio_fdatasync = EIO_FDATASYNC
		1085	aio_syncfs = EIO_SYNCFS
589	PPCODE:	1086	PPCODE:
590	{	1087	{
		1088	int fd = s_fileno_croak (fh, 0);
591	dREQ;	1089	dREQ;
592		1090
593	req->type = ix;	1091	req->type = ix;
594	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
595	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1093	req->int1 = fd;
596		1094
597	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;
598	}	1130	}
599		1131
600	void	1132	void
601	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)
602	PROTOTYPE: $;$
603	PPCODE:	1134	PPCODE:
604	{	1135	{
605	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);
606	dREQ;	1138	dREQ;
607		1139
608	if (close_pipe < 0)	1140	if (expect_false (close_fd < 0))
609	{	1141	{
610	int pipefd [2];	1142	int pipefd [2];
611		1143
		1144	if (
		1145	#ifdef _WIN32
		1146	_pipe (pipefd, 1, _O_BINARY) < 0
		1147	#else
612	if (pipe (pipefd) < 0	1148	pipe (pipefd) < 0
613	|| close (pipefd [1]) < 0
614	|| 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	)
615	abort (); /*D*/	1153	abort (); /*D*/
616		1154
617	close_pipe = pipefd [0];	1155	close_fd = pipefd [0];
618	}	1156	}
619		1157
620	req->type = EIO_DUP2;	1158	req->type = EIO_DUP2;
621	req->int1 = close_pipe;	1159	req->int1 = close_fd;
622	req->sv2 = newSVsv (fh);	1160	req->sv2 = newSVsv (fh);
623	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1161	req->int2 = fd;
624		1162
625	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;
626	}	1180	}
627		1181
628	void	1182	void
629	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)
630	ALIAS:	1184	ALIAS:
631	aio_read = EIO_READ	1185	aio_read = EIO_READ
632	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
633	PROTOTYPE: $$$$$;$
634	PPCODE:	1187	PPCODE:
635	{	1188	{
636	STRLEN svlen;	1189	STRLEN svlen;
		1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
637	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
638	UV len = SvUV (length);	1192	UV len = SvUV (length);
639
640	SvUPGRADE (data, SVt_PV);
641	SvPOK_on (data);
642		1193
643	if (dataoffset < 0)	1194	if (dataoffset < 0)
644	dataoffset += svlen;	1195	dataoffset += svlen;
645		1196
646	if (dataoffset < 0 || dataoffset > svlen)	1197	if (dataoffset < 0 || dataoffset > svlen)
…		…
652	if (!SvOK (length) || len + dataoffset > svlen)	1203	if (!SvOK (length) || len + dataoffset > svlen)
653	len = svlen - dataoffset;	1204	len = svlen - dataoffset;
654	}	1205	}
655	else	1206	else
656	{	1207	{
657	/* read: grow scalar as necessary */	1208	/* read: check type and grow scalar as necessary */
		1209	SvUPGRADE (data, SVt_PV);
658	svptr = SvGROW (data, len + dataoffset + 1);	1210	svptr = SvGROW (data, len + dataoffset + 1);
659	}	1211	}
660		1212
661	if (len < 0)
662	croak ("length must not be negative");
663
664	{	1213	{
665	dREQ;	1214	dREQ;
666		1215
667	req->type = ix;	1216	req->type = ix;
668	req->sv1 = newSVsv (fh);	1217	req->sv1 = newSVsv (fh);
669	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1218	req->int1 = fd;
670	: IoOFP (sv_2io (fh)));
671	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1219	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
672	req->size = len;	1220	req->size = len;
673	req->sv2 = SvREFCNT_inc (data);	1221	req->sv2 = SvREFCNT_inc (data);
674	req->ptr2 = (char *)svptr + dataoffset;	1222	req->ptr2 = (char *)svptr + dataoffset;
675	req->stroffset = dataoffset;	1223	req->stroffset = dataoffset;
…		…
683	REQ_SEND;	1231	REQ_SEND;
684	}	1232	}
685	}	1233	}
686		1234
687	void	1235	void
688	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
689	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
690	PPCODE:	1240	PPCODE:
691	{	1241	{
692	SV *data;
693	dREQ;	1242	dREQ;
694		1243
695	req->type = EIO_READLINK;	1244	req->type = ix;
696	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
697	req->ptr1 = SvPVbyte_nolen (req->sv1);
698		1246
699	REQ_SEND;	1247	REQ_SEND;
700	}	1248	}
701		1249
702	void	1250	void
703	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)
704	PROTOTYPE: $$$$;$
705	PPCODE:	1252	PPCODE:
706	{	1253	{
		1254	int ifd = s_fileno_croak (in_fh , 0);
		1255	int ofd = s_fileno_croak (out_fh, 1);
707	dREQ;	1256	dREQ;
708		1257
709	req->type = EIO_SENDFILE;	1258	req->type = EIO_SENDFILE;
710	req->sv1 = newSVsv (out_fh);	1259	req->sv1 = newSVsv (out_fh);
711	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1260	req->int1 = ofd;
712	req->sv2 = newSVsv (in_fh);	1261	req->sv2 = newSVsv (in_fh);
713	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1262	req->int2 = ifd;
714	req->offs = SvVAL64 (in_offset);	1263	req->offs = in_offset;
715	req->size = length;	1264	req->size = length;
716		1265
717	REQ_SEND;	1266	REQ_SEND;
718	}	1267	}
719		1268
720	void	1269	void
721	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
722	PROTOTYPE: $$$;$
723	PPCODE:	1271	PPCODE:
724	{	1272	{
		1273	int fd = s_fileno_croak (fh, 0);
725	dREQ;	1274	dREQ;
726		1275
727	req->type = EIO_READAHEAD;	1276	req->type = EIO_READAHEAD;
728	req->sv1 = newSVsv (fh);	1277	req->sv1 = newSVsv (fh);
729	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1278	req->int1 = fd;
730	req->offs = SvVAL64 (offset);	1279	req->offs = offset;
731	req->size = length;	1280	req->size = length;
732		1281
733	REQ_SEND;	1282	REQ_SEND;
734	}	1283	}
735		1284
736	void	1285	void
737	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
738	ALIAS:	1287	ALIAS:
739	aio_stat = EIO_STAT	1288	aio_stat = EIO_STAT
740	aio_lstat = EIO_LSTAT	1289	aio_lstat = EIO_LSTAT
		1290	aio_statvfs = EIO_STATVFS
741	PPCODE:	1291	PPCODE:
742	{	1292	{
743	dREQ;	1293	dREQ;
744		1294
745	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
746
747	if (SvPOK (req->sv1))
748	{
749	req->type = ix;
750	req->ptr1 = SvPVbyte_nolen (req->sv1);
751	}
752	else
753	{
754	req->type = EIO_FSTAT;
755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
756	}
757		1296
758	REQ_SEND;	1297	REQ_SEND;
759	}	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
760		1315
761	void	1316	void
762	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)
763	PPCODE:	1318	PPCODE:
764	{	1319	{
765	dREQ;	1320	dREQ;
766		1321
767	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
768	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
769	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
770
771	if (SvPOK (req->sv1))
772	{
773	req->type = EIO_UTIME;
774	req->ptr1 = SvPVbyte_nolen (req->sv1);
775	}
776	else
777	{
778	req->type = EIO_FUTIME;
779	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780	}
781		1325
782	REQ_SEND;	1326	REQ_SEND;
783	}	1327	}
784		1328
785	void	1329	void
786	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)
787	PPCODE:	1331	PPCODE:
788	{	1332	{
789	dREQ;	1333	dREQ;
790		1334
791	req->sv1 = newSVsv (fh_or_path);
792	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
793		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
794	if (SvPOK (req->sv1))
795	{
796	req->type = EIO_TRUNCATE;
797	req->ptr1 = SvPVbyte_nolen (req->sv1);
798	}
799	else
800	{
801	req->type = EIO_FTRUNCATE;
802	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
803	}
804		1337
805	REQ_SEND;	1338	REQ_SEND;
806	}	1339	}
807		1340
808	void	1341	void
809	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)
810	ALIAS:
811	aio_chmod = EIO_CHMOD
812	aio_mkdir = EIO_MKDIR
813	PPCODE:	1343	PPCODE:
814	{	1344	{
815	dREQ;	1345	dREQ;
816		1346
817	req->int2 = mode;	1347	req->int2 = mode;
818	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
819
820	if (SvPOK (req->sv1))
821	{
822	req->type = ix;
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	}
825	else
826	{
827	req->type = EIO_FCHMOD;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1349
831	REQ_SEND;	1350	REQ_SEND;
832	}	1351	}
833		1352
834	void	1353	void
…		…
837	{	1356	{
838	dREQ;	1357	dREQ;
839		1358
840	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
841	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
842	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
843		1362
844	if (SvPOK (req->sv1))	1363	REQ_SEND;
845	{	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
846	req->type = EIO_CHOWN;	1389	req->type = EIO_MKDIR;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);	1390	req->int2 = mode;
848	}	1391	req_set_path1 (req, pathname);
849	else
850	{
851	req->type = EIO_FCHOWN;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1392
855	REQ_SEND;	1393	REQ_SEND;
856	}	1394	}
857		1395
858	void	1396	void
…		…
864	PPCODE:	1402	PPCODE:
865	{	1403	{
866	dREQ;	1404	dREQ;
867		1405
868	req->type = ix;	1406	req->type = ix;
869	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871		1408
872	REQ_SEND;	1409	REQ_SEND;
873	}	1410	}
874		1411
875	void	1412	void
…		…
878	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
879	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
880	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
881	PPCODE:	1418	PPCODE:
882	{	1419	{
		1420	eio_wd wd2 = 0;
883	dREQ;	1421	dREQ;
884		1422
885	req->type = ix;	1423	req->type = ix;
886	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
887	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
888	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
889	req->ptr2 = SvPVbyte_nolen (req->sv2);
890		1427
891	REQ_SEND;	1428	REQ_SEND;
892	}	1429	}
893		1430
894	void	1431	void
…		…
896	PPCODE:	1433	PPCODE:
897	{	1434	{
898	dREQ;	1435	dREQ;
899		1436
900	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
901	req->sv1 = newSVsv (pathname);
902	req->ptr1 = SvPVbyte_nolen (req->sv1);
903	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
904	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
905		1441
906	REQ_SEND;	1442	REQ_SEND;
907	}	1443	}
908		1444
909	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
910	aio_busy (double delay, SV *callback=&PL_sv_undef)	1543	aio_busy (double delay, SV *callback=&PL_sv_undef)
911	PPCODE:	1544	PPCODE:
912	{	1545	{
913	dREQ;	1546	dREQ;
914		1547
…		…
918	REQ_SEND;	1551	REQ_SEND;
919	}	1552	}
920		1553
921	void	1554	void
922	aio_group (SV *callback=&PL_sv_undef)	1555	aio_group (SV *callback=&PL_sv_undef)
923	PROTOTYPE: ;$
924	PPCODE:	1556	PPCODE:
925	{	1557	{
926	dREQ;	1558	dREQ;
927		1559
928	req->type = EIO_GROUP;	1560	req->type = EIO_GROUP;
929		1561
930	req_submit (req);	1562	req_submit (req);
931	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1563	XPUSHs (req_sv (req, aio_grp_stash));
932	}	1564	}
933		1565
934	void	1566	void
935	aio_nop (SV *callback=&PL_sv_undef)	1567	aio_nop (SV *callback=&PL_sv_undef)
936	ALIAS:	1568	ALIAS:
…		…
945	REQ_SEND;	1577	REQ_SEND;
946	}	1578	}
947		1579
948	int	1580	int
949	aioreq_pri (int pri = 0)	1581	aioreq_pri (int pri = 0)
950	PROTOTYPE: ;$
951	CODE:	1582	CODE:
952	RETVAL = next_pri;	1583	RETVAL = next_pri;
953	if (items > 0)	1584	if (items > 0)
954	{	1585	{
955	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
967	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1598	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
968	next_pri = nice;	1599	next_pri = nice;
969		1600
970	void	1601	void
971	flush ()	1602	flush ()
972	PROTOTYPE:
973	CODE:	1603	CODE:
974	while (eio_nreqs ())	1604	while (eio_nreqs ())
975	{	1605	{
976	poll_wait ();	1606	poll_wait ();
977	poll_cb ();	1607	poll_cb ();
978	}	1608	}
979		1609
980	int	1610	int
981	poll()	1611	poll ()
982	PROTOTYPE:
983	CODE:	1612	CODE:
984	poll_wait ();	1613	poll_wait ();
985	RETVAL = poll_cb ();	1614	RETVAL = poll_cb ();
986	OUTPUT:	1615	OUTPUT:
987	RETVAL	1616	RETVAL
988		1617
989	int	1618	int
990	poll_fileno()	1619	poll_fileno ()
991	PROTOTYPE:
992	CODE:	1620	CODE:
993	RETVAL = respipe [0];	1621	RETVAL = s_epipe_fd (&respipe);
994	OUTPUT:	1622	OUTPUT:
995	RETVAL	1623	RETVAL
996		1624
997	int	1625	int
998	poll_cb(...)	1626	poll_cb (...)
999	PROTOTYPE:	1627	PROTOTYPE:
1000	CODE:	1628	CODE:
1001	RETVAL = poll_cb ();	1629	RETVAL = poll_cb ();
1002	OUTPUT:	1630	OUTPUT:
1003	RETVAL	1631	RETVAL
1004		1632
1005	void	1633	void
1006	poll_wait()	1634	poll_wait ()
1007	PROTOTYPE:
1008	CODE:	1635	CODE:
1009	poll_wait ();	1636	poll_wait ();
1010		1637
1011	int	1638	int
1012	nreqs()	1639	nreqs ()
1013	PROTOTYPE:
1014	CODE:	1640	CODE:
1015	RETVAL = eio_nreqs ();	1641	RETVAL = eio_nreqs ();
1016	OUTPUT:	1642	OUTPUT:
1017	RETVAL	1643	RETVAL
1018		1644
1019	int	1645	int
1020	nready()	1646	nready ()
1021	PROTOTYPE:
1022	CODE:	1647	CODE:
1023	RETVAL = eio_nready ();	1648	RETVAL = eio_nready ();
1024	OUTPUT:	1649	OUTPUT:
1025	RETVAL	1650	RETVAL
1026		1651
1027	int	1652	int
1028	npending()	1653	npending ()
1029	PROTOTYPE:
1030	CODE:	1654	CODE:
1031	RETVAL = eio_npending ();	1655	RETVAL = eio_npending ();
1032	OUTPUT:	1656	OUTPUT:
1033	RETVAL	1657	RETVAL
1034		1658
1035	int	1659	int
1036	nthreads()	1660	nthreads ()
1037	PROTOTYPE:
1038	CODE:	1661	CODE:
1039	RETVAL = eio_nthreads ();	1662	RETVAL = eio_nthreads ();
1040	OUTPUT:	1663	OUTPUT:
1041	RETVAL	1664	RETVAL
1042		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
1043	void _on_next_submit (SV *cb)	1788	void _on_next_submit (SV *cb)
1044	CODE:	1789	CODE:
1045	SvREFCNT_dec (on_next_submit);	1790	SvREFCNT_dec (on_next_submit);
1046	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1047		1792
1048	PROTOTYPES: DISABLE	1793	PROTOTYPES: DISABLE
1049		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
1050	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1823	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1051		1824
1052	void	1825	void
1053	cancel (aio_req_ornot req)	1826	cancel (aio_req_ornot req)
1054	CODE:	1827	CODE:
…		…
1061	if (GIMME_V != G_VOID)	1834	if (GIMME_V != G_VOID)
1062	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);
1063		1836
1064	if (items > 1)	1837	if (items > 1)
1065	{	1838	{
1066	SV *cb_cv = get_cb (callback);	1839	SV *cb_cv =get_cb (callback);
1067		1840
1068	SvREFCNT_dec (req->callback);	1841	SvREFCNT_dec (req->callback);
1069	req->callback = SvREFCNT_inc (cb_cv);	1842	req->callback = SvREFCNT_inc (cb_cv);
1070	}	1843	}
1071	}	1844	}
…		…
1108	AV *av;	1881	AV *av;
1109		1882
1110	grp->errorno = errno;	1883	grp->errorno = errno;
1111		1884
1112	av = newAV ();	1885	av = newAV ();
		1886	av_extend (av, items - 1);
1113		1887
1114	for (i = 1; i < items; ++i )	1888	for (i = 1; i < items; ++i )
1115	av_push (av, newSVsv (ST (i)));	1889	av_push (av, newSVsv (ST (i)));
1116		1890
1117	SvREFCNT_dec (grp->sv1);	1891	SvREFCNT_dec (grp->sv1);

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